From 523d3de41f02141f6f6cd497d07946a2837432cf Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Mon, 21 Aug 2017 10:05:01 +0200 Subject: clk: samsung: exynos5433: Add support for runtime PM Add runtime pm support for all clock controller units (CMU), which belong to power domains and require special handling during on/off operations. Typically special values has to be written to MUX registers to change internal clocks parents to OSC clock before turning power off. During such operation all clocks, which enter CMU has to be enabled to let MUX to stabilize. Also for each CMU there is one special parent clock, which has to be enabled all the time when any access to CMU registers is being done. This patch solves most of the mysterious external abort and freeze issues caused by a lack of proper parent CMU clock enabled or incorrect turn off procedure. Signed-off-by: Marek Szyprowski Reviewed-by: Ulf Hansson Reviewed-by: Chanwoo Choi Tested-by: Chanwoo Choi Reviewed-by: Krzysztof Kozlowski Signed-off-by: Michael Turquette Link: lkml.kernel.org/r/1503302703-13801-4-git-send-email-m.szyprowski@samsung.com --- .../devicetree/bindings/clock/exynos5433-clock.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/clock/exynos5433-clock.txt b/Documentation/devicetree/bindings/clock/exynos5433-clock.txt index 1dc80f8811fe..5c7dd12e667a 100644 --- a/Documentation/devicetree/bindings/clock/exynos5433-clock.txt +++ b/Documentation/devicetree/bindings/clock/exynos5433-clock.txt @@ -168,6 +168,11 @@ Required Properties: - aclk_cam1_400 - aclk_cam1_552 +Optional properties: + - power-domains: a phandle to respective power domain node as described by + generic PM domain bindings (see power/power_domain.txt for more + information). + Each clock is assigned an identifier and client nodes can use this identifier to specify the clock which they consume. @@ -270,6 +275,7 @@ Example 2: Examples of clock controller nodes are listed below. clocks = <&xxti>, <&cmu_top CLK_ACLK_G2D_266>, <&cmu_top CLK_ACLK_G2D_400>; + power-domains = <&pd_g2d>; }; cmu_disp: clock-controller@13b90000 { @@ -295,6 +301,7 @@ Example 2: Examples of clock controller nodes are listed below. <&cmu_mif CLK_SCLK_DECON_ECLK_DISP>, <&cmu_mif CLK_SCLK_DECON_TV_VCLK_DISP>, <&cmu_mif CLK_ACLK_DISP_333>; + power-domains = <&pd_disp>; }; cmu_aud: clock-controller@114c0000 { @@ -304,6 +311,7 @@ Example 2: Examples of clock controller nodes are listed below. clock-names = "oscclk", "fout_aud_pll"; clocks = <&xxti>, <&cmu_top CLK_FOUT_AUD_PLL>; + power-domains = <&pd_aud>; }; cmu_bus0: clock-controller@13600000 { @@ -340,6 +348,7 @@ Example 2: Examples of clock controller nodes are listed below. clock-names = "oscclk", "aclk_g3d_400"; clocks = <&xxti>, <&cmu_top CLK_ACLK_G3D_400>; + power-domains = <&pd_g3d>; }; cmu_gscl: clock-controller@13cf0000 { @@ -353,6 +362,7 @@ Example 2: Examples of clock controller nodes are listed below. clocks = <&xxti>, <&cmu_top CLK_ACLK_GSCL_111>, <&cmu_top CLK_ACLK_GSCL_333>; + power-domains = <&pd_gscl>; }; cmu_apollo: clock-controller@11900000 { @@ -384,6 +394,7 @@ Example 2: Examples of clock controller nodes are listed below. clocks = <&xxti>, <&cmu_top CLK_SCLK_JPEG_MSCL>, <&cmu_top CLK_ACLK_MSCL_400>; + power-domains = <&pd_mscl>; }; cmu_mfc: clock-controller@15280000 { @@ -393,6 +404,7 @@ Example 2: Examples of clock controller nodes are listed below. clock-names = "oscclk", "aclk_mfc_400"; clocks = <&xxti>, <&cmu_top CLK_ACLK_MFC_400>; + power-domains = <&pd_mfc>; }; cmu_hevc: clock-controller@14f80000 { @@ -402,6 +414,7 @@ Example 2: Examples of clock controller nodes are listed below. clock-names = "oscclk", "aclk_hevc_400"; clocks = <&xxti>, <&cmu_top CLK_ACLK_HEVC_400>; + power-domains = <&pd_hevc>; }; cmu_isp: clock-controller@146d0000 { @@ -415,6 +428,7 @@ Example 2: Examples of clock controller nodes are listed below. clocks = <&xxti>, <&cmu_top CLK_ACLK_ISP_DIS_400>, <&cmu_top CLK_ACLK_ISP_400>; + power-domains = <&pd_isp>; }; cmu_cam0: clock-controller@120d0000 { @@ -430,6 +444,7 @@ Example 2: Examples of clock controller nodes are listed below. <&cmu_top CLK_ACLK_CAM0_333>, <&cmu_top CLK_ACLK_CAM0_400>, <&cmu_top CLK_ACLK_CAM0_552>; + power-domains = <&pd_cam0>; }; cmu_cam1: clock-controller@145d0000 { @@ -451,6 +466,7 @@ Example 2: Examples of clock controller nodes are listed below. <&cmu_top CLK_ACLK_CAM1_333>, <&cmu_top CLK_ACLK_CAM1_400>, <&cmu_top CLK_ACLK_CAM1_552>; + power-domains = <&pd_cam1>; }; Example 3: UART controller node that consumes the clock generated by the clock -- cgit v1.2.3 From ae432a9b314e07d486acfadc4df2f922721e6757 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Mon, 21 Aug 2017 10:05:03 +0200 Subject: clk: samsung: exynos-audss: Add support for runtime PM This patch adds support for runtime PM to Exynos Audio SubSystem driver to enable full support for audio power domain on Exynos5 SoCs. The main change is moving register saving and restoring code from system sleep PM ops to runtime PM ops and implementing system sleep PM ops with generic pm_runtime_force_suspend/resume helpers. Runtime PM of the Exynos AudSS device is managed from clock core depending on the preparation status of the provided clocks. Signed-off-by: Marek Szyprowski Reviewed-by: Ulf Hansson Reviewed-by: Krzysztof Kozlowski Reviewed-by: Chanwoo Choi Signed-off-by: Michael Turquette Link: lkml.kernel.org/r/1503302703-13801-6-git-send-email-m.szyprowski@samsung.com --- .../devicetree/bindings/clock/clk-exynos-audss.txt | 6 +++ drivers/clk/samsung/clk-exynos-audss.c | 51 ++++++++++++++-------- 2 files changed, 40 insertions(+), 17 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt b/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt index 0c3d6015868d..f3635d5aeba4 100644 --- a/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt +++ b/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt @@ -33,6 +33,12 @@ Required Properties: - clock-names: Aliases for the above clocks. They should be "pll_ref", "pll_in", "cdclk", "sclk_audio", and "sclk_pcm_in" respectively. +Optional Properties: + + - power-domains: a phandle to respective power domain node as described by + generic PM domain bindings (see power/power_domain.txt for more + information). + The following is the list of clocks generated by the controller. Each clock is assigned an identifier and client nodes use this identifier to specify the clock which they consume. Some of the clocks are available only on a particular diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c index 6be52fb46ff3..ab494c104ce6 100644 --- a/drivers/clk/samsung/clk-exynos-audss.c +++ b/drivers/clk/samsung/clk-exynos-audss.c @@ -18,6 +18,7 @@ #include #include #include +#include #include @@ -36,14 +37,13 @@ static struct clk *epll; #define ASS_CLK_DIV 0x4 #define ASS_CLK_GATE 0x8 -#ifdef CONFIG_PM_SLEEP static unsigned long reg_save[][2] = { { ASS_CLK_SRC, 0 }, { ASS_CLK_DIV, 0 }, { ASS_CLK_GATE, 0 }, }; -static int exynos_audss_clk_suspend(struct device *dev) +static int __maybe_unused exynos_audss_clk_suspend(struct device *dev) { int i; @@ -53,7 +53,7 @@ static int exynos_audss_clk_suspend(struct device *dev) return 0; } -static int exynos_audss_clk_resume(struct device *dev) +static int __maybe_unused exynos_audss_clk_resume(struct device *dev) { int i; @@ -62,7 +62,6 @@ static int exynos_audss_clk_resume(struct device *dev) return 0; } -#endif /* CONFIG_PM_SLEEP */ struct exynos_audss_clk_drvdata { unsigned int has_adma_clk:1; @@ -179,7 +178,18 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) } } } - clk_table[EXYNOS_MOUT_AUDSS] = clk_hw_register_mux(NULL, "mout_audss", + + /* + * Enable runtime PM here to allow the clock core using runtime PM + * for the registered clocks. Additionally, we increase the runtime + * PM usage count before registering the clocks, to prevent the + * clock core from runtime suspending the device. + */ + pm_runtime_get_noresume(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + + clk_table[EXYNOS_MOUT_AUDSS] = clk_hw_register_mux(dev, "mout_audss", mout_audss_p, ARRAY_SIZE(mout_audss_p), CLK_SET_RATE_NO_REPARENT, reg_base + ASS_CLK_SRC, 0, 1, 0, &lock); @@ -190,48 +200,48 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) mout_i2s_p[1] = __clk_get_name(cdclk); if (!IS_ERR(sclk_audio)) mout_i2s_p[2] = __clk_get_name(sclk_audio); - clk_table[EXYNOS_MOUT_I2S] = clk_hw_register_mux(NULL, "mout_i2s", + clk_table[EXYNOS_MOUT_I2S] = clk_hw_register_mux(dev, "mout_i2s", mout_i2s_p, ARRAY_SIZE(mout_i2s_p), CLK_SET_RATE_NO_REPARENT, reg_base + ASS_CLK_SRC, 2, 2, 0, &lock); - clk_table[EXYNOS_DOUT_SRP] = clk_hw_register_divider(NULL, "dout_srp", + clk_table[EXYNOS_DOUT_SRP] = clk_hw_register_divider(dev, "dout_srp", "mout_audss", 0, reg_base + ASS_CLK_DIV, 0, 4, 0, &lock); - clk_table[EXYNOS_DOUT_AUD_BUS] = clk_hw_register_divider(NULL, + clk_table[EXYNOS_DOUT_AUD_BUS] = clk_hw_register_divider(dev, "dout_aud_bus", "dout_srp", 0, reg_base + ASS_CLK_DIV, 4, 4, 0, &lock); - clk_table[EXYNOS_DOUT_I2S] = clk_hw_register_divider(NULL, "dout_i2s", + clk_table[EXYNOS_DOUT_I2S] = clk_hw_register_divider(dev, "dout_i2s", "mout_i2s", 0, reg_base + ASS_CLK_DIV, 8, 4, 0, &lock); - clk_table[EXYNOS_SRP_CLK] = clk_hw_register_gate(NULL, "srp_clk", + clk_table[EXYNOS_SRP_CLK] = clk_hw_register_gate(dev, "srp_clk", "dout_srp", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 0, 0, &lock); - clk_table[EXYNOS_I2S_BUS] = clk_hw_register_gate(NULL, "i2s_bus", + clk_table[EXYNOS_I2S_BUS] = clk_hw_register_gate(dev, "i2s_bus", "dout_aud_bus", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 2, 0, &lock); - clk_table[EXYNOS_SCLK_I2S] = clk_hw_register_gate(NULL, "sclk_i2s", + clk_table[EXYNOS_SCLK_I2S] = clk_hw_register_gate(dev, "sclk_i2s", "dout_i2s", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 3, 0, &lock); - clk_table[EXYNOS_PCM_BUS] = clk_hw_register_gate(NULL, "pcm_bus", + clk_table[EXYNOS_PCM_BUS] = clk_hw_register_gate(dev, "pcm_bus", "sclk_pcm", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 4, 0, &lock); sclk_pcm_in = devm_clk_get(dev, "sclk_pcm_in"); if (!IS_ERR(sclk_pcm_in)) sclk_pcm_p = __clk_get_name(sclk_pcm_in); - clk_table[EXYNOS_SCLK_PCM] = clk_hw_register_gate(NULL, "sclk_pcm", + clk_table[EXYNOS_SCLK_PCM] = clk_hw_register_gate(dev, "sclk_pcm", sclk_pcm_p, CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 5, 0, &lock); if (variant->has_adma_clk) { - clk_table[EXYNOS_ADMA] = clk_hw_register_gate(NULL, "adma", + clk_table[EXYNOS_ADMA] = clk_hw_register_gate(dev, "adma", "dout_srp", CLK_SET_RATE_PARENT, reg_base + ASS_CLK_GATE, 9, 0, &lock); } @@ -251,10 +261,14 @@ static int exynos_audss_clk_probe(struct platform_device *pdev) goto unregister; } + pm_runtime_put_sync(dev); + return 0; unregister: exynos_audss_clk_teardown(); + pm_runtime_put_sync(dev); + pm_runtime_disable(dev); if (!IS_ERR(epll)) clk_disable_unprepare(epll); @@ -267,6 +281,7 @@ static int exynos_audss_clk_remove(struct platform_device *pdev) of_clk_del_provider(pdev->dev.of_node); exynos_audss_clk_teardown(); + pm_runtime_disable(&pdev->dev); if (!IS_ERR(epll)) clk_disable_unprepare(epll); @@ -275,8 +290,10 @@ static int exynos_audss_clk_remove(struct platform_device *pdev) } static const struct dev_pm_ops exynos_audss_clk_pm_ops = { - SET_LATE_SYSTEM_SLEEP_PM_OPS(exynos_audss_clk_suspend, - exynos_audss_clk_resume) + SET_RUNTIME_PM_OPS(exynos_audss_clk_suspend, exynos_audss_clk_resume, + NULL) + SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) }; static struct platform_driver exynos_audss_clk_driver = { -- cgit v1.2.3 From 8d532d36ac02a39c618abd1ee90a600a98274730 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Sat, 2 Sep 2017 19:39:15 +0200 Subject: dt-bindings: iio: pressure: add LPS33HW and LPS35HW device bindings Signed-off-by: Lorenzo Bianconi Acked-by: Rob Herring Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/st-sensors.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt index 9ec6f5ce54fc..678c035d9ed6 100644 --- a/Documentation/devicetree/bindings/iio/st-sensors.txt +++ b/Documentation/devicetree/bindings/iio/st-sensors.txt @@ -71,3 +71,5 @@ Pressure sensors: - st,lps25h-press - st,lps331ap-press - st,lps22hb-press +- st,lps33hw +- st,lps35hw -- cgit v1.2.3 From 439e7271dc2b63de379e37971dc2f64d71e24f8a Mon Sep 17 00:00:00 2001 From: Joe Lawrence Date: Thu, 31 Aug 2017 16:37:41 -0400 Subject: livepatch: introduce shadow variable API Add exported API for livepatch modules: klp_shadow_get() klp_shadow_alloc() klp_shadow_get_or_alloc() klp_shadow_free() klp_shadow_free_all() that implement "shadow" variables, which allow callers to associate new shadow fields to existing data structures. This is intended to be used by livepatch modules seeking to emulate additions to data structure definitions. See Documentation/livepatch/shadow-vars.txt for a summary of the new shadow variable API, including a few common use cases. See samples/livepatch/livepatch-shadow-* for example modules that demonstrate shadow variables. [jkosina@suse.cz: fix __klp_shadow_get_or_alloc() comment as spotted by Josh] Signed-off-by: Joe Lawrence Acked-by: Josh Poimboeuf Acked-by: Miroslav Benes Signed-off-by: Jiri Kosina --- Documentation/livepatch/shadow-vars.txt | 192 +++++++++++++++++++++ include/linux/livepatch.h | 8 + kernel/livepatch/Makefile | 2 +- kernel/livepatch/shadow.c | 277 ++++++++++++++++++++++++++++++ samples/Kconfig | 5 +- samples/livepatch/Makefile | 3 + samples/livepatch/livepatch-shadow-fix1.c | 173 +++++++++++++++++++ samples/livepatch/livepatch-shadow-fix2.c | 168 ++++++++++++++++++ samples/livepatch/livepatch-shadow-mod.c | 224 ++++++++++++++++++++++++ 9 files changed, 1048 insertions(+), 4 deletions(-) create mode 100644 Documentation/livepatch/shadow-vars.txt create mode 100644 kernel/livepatch/shadow.c create mode 100644 samples/livepatch/livepatch-shadow-fix1.c create mode 100644 samples/livepatch/livepatch-shadow-fix2.c create mode 100644 samples/livepatch/livepatch-shadow-mod.c (limited to 'Documentation') diff --git a/Documentation/livepatch/shadow-vars.txt b/Documentation/livepatch/shadow-vars.txt new file mode 100644 index 000000000000..e3ffc4301bfa --- /dev/null +++ b/Documentation/livepatch/shadow-vars.txt @@ -0,0 +1,192 @@ +================ +Shadow Variables +================ + +Shadow variables are a simple way for livepatch modules to associate +additional "shadow" data with existing data structures. Shadow data is +allocated separately from parent data structures, which are left +unmodified. The shadow variable API described in this document is used +to allocate/attach and detach/release shadow variables to their parents. + +The implementation introduces a global, in-kernel hashtable that +associates pointers to parent objects and a numeric identifier of the +shadow data. The numeric identifier is a simple enumeration that may be +used to describe shadow variable version, class or type, etc. More +specifically, the parent pointer serves as the hashtable key while the +numeric id subsequently filters hashtable queries. Multiple shadow +variables may attach to the same parent object, but their numeric +identifier distinguishes between them. + + +1. Brief API summary +==================== + +(See the full API usage docbook notes in livepatch/shadow.c.) + +A hashtable references all shadow variables. These references are +stored and retrieved through a pair. + +* The klp_shadow variable data structure encapsulates both tracking +meta-data and shadow-data: + - meta-data + - obj - pointer to parent object + - id - data identifier + - data[] - storage for shadow data + +It is important to note that the klp_shadow_alloc() and +klp_shadow_get_or_alloc() calls, described below, store a *copy* of the +data that the functions are provided. Callers should provide whatever +mutual exclusion is required of the shadow data. + +* klp_shadow_get() - retrieve a shadow variable data pointer + - search hashtable for pair + +* klp_shadow_alloc() - allocate and add a new shadow variable + - search hashtable for pair + - if exists + - WARN and return NULL + - if doesn't already exist + - allocate a new shadow variable + - copy data into the new shadow variable + - add to the global hashtable + +* klp_shadow_get_or_alloc() - get existing or alloc a new shadow variable + - search hashtable for pair + - if exists + - return existing shadow variable + - if doesn't already exist + - allocate a new shadow variable + - copy data into the new shadow variable + - add pair to the global hashtable + +* klp_shadow_free() - detach and free a shadow variable + - find and remove a reference from global hashtable + - if found, free shadow variable + +* klp_shadow_free_all() - detach and free all <*, id> shadow variables + - find and remove any <*, id> references from global hashtable + - if found, free shadow variable + + +2. Use cases +============ + +(See the example shadow variable livepatch modules in samples/livepatch/ +for full working demonstrations.) + +For the following use-case examples, consider commit 1d147bfa6429 +("mac80211: fix AP powersave TX vs. wakeup race"), which added a +spinlock to net/mac80211/sta_info.h :: struct sta_info. Each use-case +example can be considered a stand-alone livepatch implementation of this +fix. + + +Matching parent's lifecycle +--------------------------- + +If parent data structures are frequently created and destroyed, it may +be easiest to align their shadow variables lifetimes to the same +allocation and release functions. In this case, the parent data +structure is typically allocated, initialized, then registered in some +manner. Shadow variable allocation and setup can then be considered +part of the parent's initialization and should be completed before the +parent "goes live" (ie, any shadow variable get-API requests are made +for this pair.) + +For commit 1d147bfa6429, when a parent sta_info structure is allocated, +allocate a shadow copy of the ps_lock pointer, then initialize it: + +#define PS_LOCK 1 +struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, + const u8 *addr, gfp_t gfp) +{ + struct sta_info *sta; + spinlock_t *ps_lock; + + /* Parent structure is created */ + sta = kzalloc(sizeof(*sta) + hw->sta_data_size, gfp); + + /* Attach a corresponding shadow variable, then initialize it */ + ps_lock = klp_shadow_alloc(sta, PS_LOCK, NULL, sizeof(ps_lock), gfp); + if (!ps_lock) + goto shadow_fail; + spin_lock_init(ps_lock); + ... + +When requiring a ps_lock, query the shadow variable API to retrieve one +for a specific struct sta_info: + +void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) +{ + spinlock_t *ps_lock; + + /* sync with ieee80211_tx_h_unicast_ps_buf */ + ps_lock = klp_shadow_get(sta, PS_LOCK); + if (ps_lock) + spin_lock(ps_lock); + ... + +When the parent sta_info structure is freed, first free the shadow +variable: + +void sta_info_free(struct ieee80211_local *local, struct sta_info *sta) +{ + klp_shadow_free(sta, PS_LOCK); + kfree(sta); + ... + + +In-flight parent objects +------------------------ + +Sometimes it may not be convenient or possible to allocate shadow +variables alongside their parent objects. Or a livepatch fix may +require shadow varibles to only a subset of parent object instances. In +these cases, the klp_shadow_get_or_alloc() call can be used to attach +shadow variables to parents already in-flight. + +For commit 1d147bfa6429, a good spot to allocate a shadow spinlock is +inside ieee80211_sta_ps_deliver_wakeup(): + +#define PS_LOCK 1 +void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) +{ + DEFINE_SPINLOCK(ps_lock_fallback); + spinlock_t *ps_lock; + + /* sync with ieee80211_tx_h_unicast_ps_buf */ + ps_lock = klp_shadow_get_or_alloc(sta, PS_LOCK, + &ps_lock_fallback, sizeof(ps_lock_fallback), + GFP_ATOMIC); + if (ps_lock) + spin_lock(ps_lock); + ... + +This usage will create a shadow variable, only if needed, otherwise it +will use one that was already created for this pair. + +Like the previous use-case, the shadow spinlock needs to be cleaned up. +A shadow variable can be freed just before its parent object is freed, +or even when the shadow variable itself is no longer required. + + +Other use-cases +--------------- + +Shadow variables can also be used as a flag indicating that a data +structure was allocated by new, livepatched code. In this case, it +doesn't matter what data value the shadow variable holds, its existence +suggests how to handle the parent object. + + +3. References +============= + +* https://github.com/dynup/kpatch +The livepatch implementation is based on the kpatch version of shadow +variables. + +* http://files.mkgnu.net/files/dynamos/doc/papers/dynamos_eurosys_07.pdf +Dynamic and Adaptive Updates of Non-Quiescent Subsystems in Commodity +Operating System Kernels (Kritis Makris, Kyung Dong Ryu 2007) presented +a datatype update technique called "shadow data structures". diff --git a/include/linux/livepatch.h b/include/linux/livepatch.h index 194991ef9347..d08eddc00497 100644 --- a/include/linux/livepatch.h +++ b/include/linux/livepatch.h @@ -164,6 +164,14 @@ static inline bool klp_have_reliable_stack(void) IS_ENABLED(CONFIG_HAVE_RELIABLE_STACKTRACE); } +void *klp_shadow_get(void *obj, unsigned long id); +void *klp_shadow_alloc(void *obj, unsigned long id, void *data, + size_t size, gfp_t gfp_flags); +void *klp_shadow_get_or_alloc(void *obj, unsigned long id, void *data, + size_t size, gfp_t gfp_flags); +void klp_shadow_free(void *obj, unsigned long id); +void klp_shadow_free_all(unsigned long id); + #else /* !CONFIG_LIVEPATCH */ static inline int klp_module_coming(struct module *mod) { return 0; } diff --git a/kernel/livepatch/Makefile b/kernel/livepatch/Makefile index 2b8bdb1925da..b36ceda6488e 100644 --- a/kernel/livepatch/Makefile +++ b/kernel/livepatch/Makefile @@ -1,3 +1,3 @@ obj-$(CONFIG_LIVEPATCH) += livepatch.o -livepatch-objs := core.o patch.o transition.o +livepatch-objs := core.o patch.o shadow.o transition.o diff --git a/kernel/livepatch/shadow.c b/kernel/livepatch/shadow.c new file mode 100644 index 000000000000..67e4360521f3 --- /dev/null +++ b/kernel/livepatch/shadow.c @@ -0,0 +1,277 @@ +/* + * shadow.c - Shadow Variables + * + * Copyright (C) 2014 Josh Poimboeuf + * Copyright (C) 2014 Seth Jennings + * Copyright (C) 2017 Joe Lawrence + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +/** + * DOC: Shadow variable API concurrency notes: + * + * The shadow variable API provides a simple relationship between an + * pair and a pointer value. It is the responsibility of the + * caller to provide any mutual exclusion required of the shadow data. + * + * Once a shadow variable is attached to its parent object via the + * klp_shadow_*alloc() API calls, it is considered live: any subsequent + * call to klp_shadow_get() may then return the shadow variable's data + * pointer. Callers of klp_shadow_*alloc() should prepare shadow data + * accordingly. + * + * The klp_shadow_*alloc() API calls may allocate memory for new shadow + * variable structures. Their implementation does not call kmalloc + * inside any spinlocks, but API callers should pass GFP flags according + * to their specific needs. + * + * The klp_shadow_hash is an RCU-enabled hashtable and is safe against + * concurrent klp_shadow_free() and klp_shadow_get() operations. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include + +static DEFINE_HASHTABLE(klp_shadow_hash, 12); + +/* + * klp_shadow_lock provides exclusive access to the klp_shadow_hash and + * the shadow variables it references. + */ +static DEFINE_SPINLOCK(klp_shadow_lock); + +/** + * struct klp_shadow - shadow variable structure + * @node: klp_shadow_hash hash table node + * @rcu_head: RCU is used to safely free this structure + * @obj: pointer to parent object + * @id: data identifier + * @data: data area + */ +struct klp_shadow { + struct hlist_node node; + struct rcu_head rcu_head; + void *obj; + unsigned long id; + char data[]; +}; + +/** + * klp_shadow_match() - verify a shadow variable matches given + * @shadow: shadow variable to match + * @obj: pointer to parent object + * @id: data identifier + * + * Return: true if the shadow variable matches. + */ +static inline bool klp_shadow_match(struct klp_shadow *shadow, void *obj, + unsigned long id) +{ + return shadow->obj == obj && shadow->id == id; +} + +/** + * klp_shadow_get() - retrieve a shadow variable data pointer + * @obj: pointer to parent object + * @id: data identifier + * + * Return: the shadow variable data element, NULL on failure. + */ +void *klp_shadow_get(void *obj, unsigned long id) +{ + struct klp_shadow *shadow; + + rcu_read_lock(); + + hash_for_each_possible_rcu(klp_shadow_hash, shadow, node, + (unsigned long)obj) { + + if (klp_shadow_match(shadow, obj, id)) { + rcu_read_unlock(); + return shadow->data; + } + } + + rcu_read_unlock(); + + return NULL; +} +EXPORT_SYMBOL_GPL(klp_shadow_get); + +void *__klp_shadow_get_or_alloc(void *obj, unsigned long id, void *data, + size_t size, gfp_t gfp_flags, bool warn_on_exist) +{ + struct klp_shadow *new_shadow; + void *shadow_data; + unsigned long flags; + + /* Check if the shadow variable already exists */ + shadow_data = klp_shadow_get(obj, id); + if (shadow_data) + goto exists; + + /* Allocate a new shadow variable for use inside the lock below */ + new_shadow = kzalloc(size + sizeof(*new_shadow), gfp_flags); + if (!new_shadow) + return NULL; + + new_shadow->obj = obj; + new_shadow->id = id; + + /* Initialize the shadow variable if data provided */ + if (data) + memcpy(new_shadow->data, data, size); + + /* Look for again under the lock */ + spin_lock_irqsave(&klp_shadow_lock, flags); + shadow_data = klp_shadow_get(obj, id); + if (unlikely(shadow_data)) { + /* + * Shadow variable was found, throw away speculative + * allocation. + */ + spin_unlock_irqrestore(&klp_shadow_lock, flags); + kfree(new_shadow); + goto exists; + } + + /* No found, so attach the newly allocated one */ + hash_add_rcu(klp_shadow_hash, &new_shadow->node, + (unsigned long)new_shadow->obj); + spin_unlock_irqrestore(&klp_shadow_lock, flags); + + return new_shadow->data; + +exists: + if (warn_on_exist) { + WARN(1, "Duplicate shadow variable <%p, %lx>\n", obj, id); + return NULL; + } + + return shadow_data; +} + +/** + * klp_shadow_alloc() - allocate and add a new shadow variable + * @obj: pointer to parent object + * @id: data identifier + * @data: pointer to data to attach to parent + * @size: size of attached data + * @gfp_flags: GFP mask for allocation + * + * Allocates @size bytes for new shadow variable data using @gfp_flags + * and copies @size bytes from @data into the new shadow variable's own + * data space. If @data is NULL, @size bytes are still allocated, but + * no copy is performed. The new shadow variable is then added to the + * global hashtable. + * + * If an existing shadow variable can be found, this routine + * will issue a WARN, exit early and return NULL. + * + * Return: the shadow variable data element, NULL on duplicate or + * failure. + */ +void *klp_shadow_alloc(void *obj, unsigned long id, void *data, + size_t size, gfp_t gfp_flags) +{ + return __klp_shadow_get_or_alloc(obj, id, data, size, gfp_flags, true); +} +EXPORT_SYMBOL_GPL(klp_shadow_alloc); + +/** + * klp_shadow_get_or_alloc() - get existing or allocate a new shadow variable + * @obj: pointer to parent object + * @id: data identifier + * @data: pointer to data to attach to parent + * @size: size of attached data + * @gfp_flags: GFP mask for allocation + * + * Returns a pointer to existing shadow data if an shadow + * variable is already present. Otherwise, it creates a new shadow + * variable like klp_shadow_alloc(). + * + * This function guarantees that only one shadow variable exists with + * the given @id for the given @obj. It also guarantees that the shadow + * variable will be initialized by the given @data only when it did not + * exist before. + * + * Return: the shadow variable data element, NULL on failure. + */ +void *klp_shadow_get_or_alloc(void *obj, unsigned long id, void *data, + size_t size, gfp_t gfp_flags) +{ + return __klp_shadow_get_or_alloc(obj, id, data, size, gfp_flags, false); +} +EXPORT_SYMBOL_GPL(klp_shadow_get_or_alloc); + +/** + * klp_shadow_free() - detach and free a shadow variable + * @obj: pointer to parent object + * @id: data identifier + * + * This function releases the memory for this shadow variable + * instance, callers should stop referencing it accordingly. + */ +void klp_shadow_free(void *obj, unsigned long id) +{ + struct klp_shadow *shadow; + unsigned long flags; + + spin_lock_irqsave(&klp_shadow_lock, flags); + + /* Delete from hash */ + hash_for_each_possible(klp_shadow_hash, shadow, node, + (unsigned long)obj) { + + if (klp_shadow_match(shadow, obj, id)) { + hash_del_rcu(&shadow->node); + kfree_rcu(shadow, rcu_head); + break; + } + } + + spin_unlock_irqrestore(&klp_shadow_lock, flags); +} +EXPORT_SYMBOL_GPL(klp_shadow_free); + +/** + * klp_shadow_free_all() - detach and free all <*, id> shadow variables + * @id: data identifier + * + * This function releases the memory for all <*, id> shadow variable + * instances, callers should stop referencing them accordingly. + */ +void klp_shadow_free_all(unsigned long id) +{ + struct klp_shadow *shadow; + unsigned long flags; + int i; + + spin_lock_irqsave(&klp_shadow_lock, flags); + + /* Delete all <*, id> from hash */ + hash_for_each(klp_shadow_hash, i, shadow, node) { + if (klp_shadow_match(shadow, shadow->obj, id)) { + hash_del_rcu(&shadow->node); + kfree_rcu(shadow, rcu_head); + } + } + + spin_unlock_irqrestore(&klp_shadow_lock, flags); +} +EXPORT_SYMBOL_GPL(klp_shadow_free_all); diff --git a/samples/Kconfig b/samples/Kconfig index 9cb63188d3ef..c332a3b9de05 100644 --- a/samples/Kconfig +++ b/samples/Kconfig @@ -71,11 +71,10 @@ config SAMPLE_RPMSG_CLIENT the rpmsg bus. config SAMPLE_LIVEPATCH - tristate "Build live patching sample -- loadable modules only" + tristate "Build live patching samples -- loadable modules only" depends on LIVEPATCH && m help - Builds a sample live patch that replaces the procfs handler - for /proc/cmdline to print "this has been live patched". + Build sample live patch demonstrations. config SAMPLE_CONFIGFS tristate "Build configfs patching sample -- loadable modules only" diff --git a/samples/livepatch/Makefile b/samples/livepatch/Makefile index 10319d7ea0b1..539e81d433cd 100644 --- a/samples/livepatch/Makefile +++ b/samples/livepatch/Makefile @@ -1 +1,4 @@ obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-sample.o +obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-mod.o +obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-fix1.o +obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-fix2.o diff --git a/samples/livepatch/livepatch-shadow-fix1.c b/samples/livepatch/livepatch-shadow-fix1.c new file mode 100644 index 000000000000..fbe0a1f3d99b --- /dev/null +++ b/samples/livepatch/livepatch-shadow-fix1.c @@ -0,0 +1,173 @@ +/* + * Copyright (C) 2017 Joe Lawrence + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +/* + * livepatch-shadow-fix1.c - Shadow variables, livepatch demo + * + * Purpose + * ------- + * + * Fixes the memory leak introduced in livepatch-shadow-mod through the + * use of a shadow variable. This fix demonstrates the "extending" of + * short-lived data structures by patching its allocation and release + * functions. + * + * + * Usage + * ----- + * + * This module is not intended to be standalone. See the "Usage" + * section of livepatch-shadow-mod.c. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include + +/* Shadow variable enums */ +#define SV_LEAK 1 + +/* Allocate new dummies every second */ +#define ALLOC_PERIOD 1 +/* Check for expired dummies after a few new ones have been allocated */ +#define CLEANUP_PERIOD (3 * ALLOC_PERIOD) +/* Dummies expire after a few cleanup instances */ +#define EXPIRE_PERIOD (4 * CLEANUP_PERIOD) + +struct dummy { + struct list_head list; + unsigned long jiffies_expire; +}; + +struct dummy *livepatch_fix1_dummy_alloc(void) +{ + struct dummy *d; + void *leak; + + d = kzalloc(sizeof(*d), GFP_KERNEL); + if (!d) + return NULL; + + d->jiffies_expire = jiffies + + msecs_to_jiffies(1000 * EXPIRE_PERIOD); + + /* + * Patch: save the extra memory location into a SV_LEAK shadow + * variable. A patched dummy_free routine can later fetch this + * pointer to handle resource release. + */ + leak = kzalloc(sizeof(int), GFP_KERNEL); + klp_shadow_alloc(d, SV_LEAK, &leak, sizeof(leak), GFP_KERNEL); + + pr_info("%s: dummy @ %p, expires @ %lx\n", + __func__, d, d->jiffies_expire); + + return d; +} + +void livepatch_fix1_dummy_free(struct dummy *d) +{ + void **shadow_leak, *leak; + + /* + * Patch: fetch the saved SV_LEAK shadow variable, detach and + * free it. Note: handle cases where this shadow variable does + * not exist (ie, dummy structures allocated before this livepatch + * was loaded.) + */ + shadow_leak = klp_shadow_get(d, SV_LEAK); + if (shadow_leak) { + leak = *shadow_leak; + klp_shadow_free(d, SV_LEAK); + kfree(leak); + pr_info("%s: dummy @ %p, prevented leak @ %p\n", + __func__, d, leak); + } else { + pr_info("%s: dummy @ %p leaked!\n", __func__, d); + } + + kfree(d); +} + +static struct klp_func funcs[] = { + { + .old_name = "dummy_alloc", + .new_func = livepatch_fix1_dummy_alloc, + }, + { + .old_name = "dummy_free", + .new_func = livepatch_fix1_dummy_free, + }, { } +}; + +static struct klp_object objs[] = { + { + .name = "livepatch_shadow_mod", + .funcs = funcs, + }, { } +}; + +static struct klp_patch patch = { + .mod = THIS_MODULE, + .objs = objs, +}; + +static int livepatch_shadow_fix1_init(void) +{ + int ret; + + if (!klp_have_reliable_stack() && !patch.immediate) { + /* + * WARNING: Be very careful when using 'patch.immediate' in + * your patches. It's ok to use it for simple patches like + * this, but for more complex patches which change function + * semantics, locking semantics, or data structures, it may not + * be safe. Use of this option will also prevent removal of + * the patch. + * + * See Documentation/livepatch/livepatch.txt for more details. + */ + patch.immediate = true; + pr_notice("The consistency model isn't supported for your architecture. Bypassing safety mechanisms and applying the patch immediately.\n"); + } + + ret = klp_register_patch(&patch); + if (ret) + return ret; + ret = klp_enable_patch(&patch); + if (ret) { + WARN_ON(klp_unregister_patch(&patch)); + return ret; + } + return 0; +} + +static void livepatch_shadow_fix1_exit(void) +{ + /* Cleanup any existing SV_LEAK shadow variables */ + klp_shadow_free_all(SV_LEAK); + + WARN_ON(klp_unregister_patch(&patch)); +} + +module_init(livepatch_shadow_fix1_init); +module_exit(livepatch_shadow_fix1_exit); +MODULE_LICENSE("GPL"); +MODULE_INFO(livepatch, "Y"); diff --git a/samples/livepatch/livepatch-shadow-fix2.c b/samples/livepatch/livepatch-shadow-fix2.c new file mode 100644 index 000000000000..53c1794bdc5f --- /dev/null +++ b/samples/livepatch/livepatch-shadow-fix2.c @@ -0,0 +1,168 @@ +/* + * Copyright (C) 2017 Joe Lawrence + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +/* + * livepatch-shadow-fix2.c - Shadow variables, livepatch demo + * + * Purpose + * ------- + * + * Adds functionality to livepatch-shadow-mod's in-flight data + * structures through a shadow variable. The livepatch patches a + * routine that periodically inspects data structures, incrementing a + * per-data-structure counter, creating the counter if needed. + * + * + * Usage + * ----- + * + * This module is not intended to be standalone. See the "Usage" + * section of livepatch-shadow-mod.c. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include + +/* Shadow variable enums */ +#define SV_LEAK 1 +#define SV_COUNTER 2 + +struct dummy { + struct list_head list; + unsigned long jiffies_expire; +}; + +bool livepatch_fix2_dummy_check(struct dummy *d, unsigned long jiffies) +{ + int *shadow_count; + int count; + + /* + * Patch: handle in-flight dummy structures, if they do not + * already have a SV_COUNTER shadow variable, then attach a + * new one. + */ + count = 0; + shadow_count = klp_shadow_get_or_alloc(d, SV_COUNTER, + &count, sizeof(count), + GFP_NOWAIT); + if (shadow_count) + *shadow_count += 1; + + return time_after(jiffies, d->jiffies_expire); +} + +void livepatch_fix2_dummy_free(struct dummy *d) +{ + void **shadow_leak, *leak; + int *shadow_count; + + /* Patch: copy the memory leak patch from the fix1 module. */ + shadow_leak = klp_shadow_get(d, SV_LEAK); + if (shadow_leak) { + leak = *shadow_leak; + klp_shadow_free(d, SV_LEAK); + kfree(leak); + pr_info("%s: dummy @ %p, prevented leak @ %p\n", + __func__, d, leak); + } else { + pr_info("%s: dummy @ %p leaked!\n", __func__, d); + } + + /* + * Patch: fetch the SV_COUNTER shadow variable and display + * the final count. Detach the shadow variable. + */ + shadow_count = klp_shadow_get(d, SV_COUNTER); + if (shadow_count) { + pr_info("%s: dummy @ %p, check counter = %d\n", + __func__, d, *shadow_count); + klp_shadow_free(d, SV_COUNTER); + } + + kfree(d); +} + +static struct klp_func funcs[] = { + { + .old_name = "dummy_check", + .new_func = livepatch_fix2_dummy_check, + }, + { + .old_name = "dummy_free", + .new_func = livepatch_fix2_dummy_free, + }, { } +}; + +static struct klp_object objs[] = { + { + .name = "livepatch_shadow_mod", + .funcs = funcs, + }, { } +}; + +static struct klp_patch patch = { + .mod = THIS_MODULE, + .objs = objs, +}; + +static int livepatch_shadow_fix2_init(void) +{ + int ret; + + if (!klp_have_reliable_stack() && !patch.immediate) { + /* + * WARNING: Be very careful when using 'patch.immediate' in + * your patches. It's ok to use it for simple patches like + * this, but for more complex patches which change function + * semantics, locking semantics, or data structures, it may not + * be safe. Use of this option will also prevent removal of + * the patch. + * + * See Documentation/livepatch/livepatch.txt for more details. + */ + patch.immediate = true; + pr_notice("The consistency model isn't supported for your architecture. Bypassing safety mechanisms and applying the patch immediately.\n"); + } + + ret = klp_register_patch(&patch); + if (ret) + return ret; + ret = klp_enable_patch(&patch); + if (ret) { + WARN_ON(klp_unregister_patch(&patch)); + return ret; + } + return 0; +} + +static void livepatch_shadow_fix2_exit(void) +{ + /* Cleanup any existing SV_COUNTER shadow variables */ + klp_shadow_free_all(SV_COUNTER); + + WARN_ON(klp_unregister_patch(&patch)); +} + +module_init(livepatch_shadow_fix2_init); +module_exit(livepatch_shadow_fix2_exit); +MODULE_LICENSE("GPL"); +MODULE_INFO(livepatch, "Y"); diff --git a/samples/livepatch/livepatch-shadow-mod.c b/samples/livepatch/livepatch-shadow-mod.c new file mode 100644 index 000000000000..4c54b250332d --- /dev/null +++ b/samples/livepatch/livepatch-shadow-mod.c @@ -0,0 +1,224 @@ +/* + * Copyright (C) 2017 Joe Lawrence + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +/* + * livepatch-shadow-mod.c - Shadow variables, buggy module demo + * + * Purpose + * ------- + * + * As a demonstration of livepatch shadow variable API, this module + * introduces memory leak behavior that livepatch modules + * livepatch-shadow-fix1.ko and livepatch-shadow-fix2.ko correct and + * enhance. + * + * WARNING - even though the livepatch-shadow-fix modules patch the + * memory leak, please load these modules at your own risk -- some + * amount of memory may leaked before the bug is patched. + * + * + * Usage + * ----- + * + * Step 1 - Load the buggy demonstration module: + * + * insmod samples/livepatch/livepatch-shadow-mod.ko + * + * Watch dmesg output for a few moments to see new dummy being allocated + * and a periodic cleanup check. (Note: a small amount of memory is + * being leaked.) + * + * + * Step 2 - Load livepatch fix1: + * + * insmod samples/livepatch/livepatch-shadow-fix1.ko + * + * Continue watching dmesg and note that now livepatch_fix1_dummy_free() + * and livepatch_fix1_dummy_alloc() are logging messages about leaked + * memory and eventually leaks prevented. + * + * + * Step 3 - Load livepatch fix2 (on top of fix1): + * + * insmod samples/livepatch/livepatch-shadow-fix2.ko + * + * This module extends functionality through shadow variables, as a new + * "check" counter is added to the dummy structure. Periodic dmesg + * messages will log these as dummies are cleaned up. + * + * + * Step 4 - Cleanup + * + * Unwind the demonstration by disabling the livepatch fix modules, then + * removing them and the demo module: + * + * echo 0 > /sys/kernel/livepatch/livepatch_shadow_fix2/enabled + * echo 0 > /sys/kernel/livepatch/livepatch_shadow_fix1/enabled + * rmmod livepatch-shadow-fix2 + * rmmod livepatch-shadow-fix1 + * rmmod livepatch-shadow-mod + */ + + +#include +#include +#include +#include +#include +#include + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Joe Lawrence "); +MODULE_DESCRIPTION("Buggy module for shadow variable demo"); + +/* Allocate new dummies every second */ +#define ALLOC_PERIOD 1 +/* Check for expired dummies after a few new ones have been allocated */ +#define CLEANUP_PERIOD (3 * ALLOC_PERIOD) +/* Dummies expire after a few cleanup instances */ +#define EXPIRE_PERIOD (4 * CLEANUP_PERIOD) + +/* + * Keep a list of all the dummies so we can clean up any residual ones + * on module exit + */ +LIST_HEAD(dummy_list); +DEFINE_MUTEX(dummy_list_mutex); + +struct dummy { + struct list_head list; + unsigned long jiffies_expire; +}; + +noinline struct dummy *dummy_alloc(void) +{ + struct dummy *d; + void *leak; + + d = kzalloc(sizeof(*d), GFP_KERNEL); + if (!d) + return NULL; + + d->jiffies_expire = jiffies + + msecs_to_jiffies(1000 * EXPIRE_PERIOD); + + /* Oops, forgot to save leak! */ + leak = kzalloc(sizeof(int), GFP_KERNEL); + + pr_info("%s: dummy @ %p, expires @ %lx\n", + __func__, d, d->jiffies_expire); + + return d; +} + +noinline void dummy_free(struct dummy *d) +{ + pr_info("%s: dummy @ %p, expired = %lx\n", + __func__, d, d->jiffies_expire); + + kfree(d); +} + +noinline bool dummy_check(struct dummy *d, unsigned long jiffies) +{ + return time_after(jiffies, d->jiffies_expire); +} + +/* + * alloc_work_func: allocates new dummy structures, allocates additional + * memory, aptly named "leak", but doesn't keep + * permanent record of it. + */ + +static void alloc_work_func(struct work_struct *work); +static DECLARE_DELAYED_WORK(alloc_dwork, alloc_work_func); + +static void alloc_work_func(struct work_struct *work) +{ + struct dummy *d; + + d = dummy_alloc(); + if (!d) + return; + + mutex_lock(&dummy_list_mutex); + list_add(&d->list, &dummy_list); + mutex_unlock(&dummy_list_mutex); + + schedule_delayed_work(&alloc_dwork, + msecs_to_jiffies(1000 * ALLOC_PERIOD)); +} + +/* + * cleanup_work_func: frees dummy structures. Without knownledge of + * "leak", it leaks the additional memory that + * alloc_work_func created. + */ + +static void cleanup_work_func(struct work_struct *work); +static DECLARE_DELAYED_WORK(cleanup_dwork, cleanup_work_func); + +static void cleanup_work_func(struct work_struct *work) +{ + struct dummy *d, *tmp; + unsigned long j; + + j = jiffies; + pr_info("%s: jiffies = %lx\n", __func__, j); + + mutex_lock(&dummy_list_mutex); + list_for_each_entry_safe(d, tmp, &dummy_list, list) { + + /* Kick out and free any expired dummies */ + if (dummy_check(d, j)) { + list_del(&d->list); + dummy_free(d); + } + } + mutex_unlock(&dummy_list_mutex); + + schedule_delayed_work(&cleanup_dwork, + msecs_to_jiffies(1000 * CLEANUP_PERIOD)); +} + +static int livepatch_shadow_mod_init(void) +{ + schedule_delayed_work(&alloc_dwork, + msecs_to_jiffies(1000 * ALLOC_PERIOD)); + schedule_delayed_work(&cleanup_dwork, + msecs_to_jiffies(1000 * CLEANUP_PERIOD)); + + return 0; +} + +static void livepatch_shadow_mod_exit(void) +{ + struct dummy *d, *tmp; + + /* Wait for any dummies at work */ + cancel_delayed_work_sync(&alloc_dwork); + cancel_delayed_work_sync(&cleanup_dwork); + + /* Cleanup residual dummies */ + list_for_each_entry_safe(d, tmp, &dummy_list, list) { + list_del(&d->list); + dummy_free(d); + } +} + +module_init(livepatch_shadow_mod_init); +module_exit(livepatch_shadow_mod_exit); -- cgit v1.2.3 From 50544f39018f8c75778d84228535bf4a0d588583 Mon Sep 17 00:00:00 2001 From: Jagan Teki Date: Sat, 26 Aug 2017 12:21:42 +0530 Subject: dt-bindings: Add vendor prefix for Amarula Solutions Added 'amarula' as a vendor prefix for Amarula Solutions, specialist in Embedded and Opensource solutions. Signed-off-by: Jagan Teki Acked-by: Rob Herring Signed-off-by: Heiko Stuebner --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 1ea1fd4232ab..192709de8632 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -18,6 +18,7 @@ al Annapurna Labs allwinner Allwinner Technology Co., Ltd. alphascale AlphaScale Integrated Circuits Systems, Inc. altr Altera Corp. +amarula Amarula Solutions amazon Amazon.com, Inc. amcc Applied Micro Circuits Corporation (APM, formally AMCC) amd Advanced Micro Devices (AMD), Inc. -- cgit v1.2.3 From 15306b752f5a91ade95882aba83022f54fbaa433 Mon Sep 17 00:00:00 2001 From: Jagan Teki Date: Sat, 26 Aug 2017 15:39:24 +0530 Subject: ARM: dts: rockchip: Add rk3288 vyasa board This patch adds initial support for rk3288 based Vyasa board, which is made by Amarula Solutions. Signed-off-by: Jagan Teki Acked-by: Rob Herring Signed-off-by: Heiko Stuebner --- Documentation/devicetree/bindings/arm/rockchip.txt | 4 + arch/arm/boot/dts/Makefile | 3 +- arch/arm/boot/dts/rk3288-vyasa.dts | 311 +++++++++++++++++++++ 3 files changed, 317 insertions(+), 1 deletion(-) create mode 100644 arch/arm/boot/dts/rk3288-vyasa.dts (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/rockchip.txt b/Documentation/devicetree/bindings/arm/rockchip.txt index b003148e2945..326d24bca1a9 100644 --- a/Documentation/devicetree/bindings/arm/rockchip.txt +++ b/Documentation/devicetree/bindings/arm/rockchip.txt @@ -1,5 +1,9 @@ Rockchip platforms device tree bindings --------------------------------------- +- Amarula Vyasa RK3288 board + Required root node properties: + - compatible = "amarula,vyasa-rk3288", "rockchip,rk3288"; + - Asus Tinker board Required root node properties: - compatible = "asus,rk3288-tinker", "rockchip,rk3288"; diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index faf46abaa4a2..0d8eea43e1b5 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -767,7 +767,8 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \ rk3288-veyron-mickey.dtb \ rk3288-veyron-minnie.dtb \ rk3288-veyron-pinky.dtb \ - rk3288-veyron-speedy.dtb + rk3288-veyron-speedy.dtb \ + rk3288-vyasa.dtb dtb-$(CONFIG_ARCH_S3C24XX) += \ s3c2416-smdk2416.dtb dtb-$(CONFIG_ARCH_S3C64XX) += \ diff --git a/arch/arm/boot/dts/rk3288-vyasa.dts b/arch/arm/boot/dts/rk3288-vyasa.dts new file mode 100644 index 000000000000..1fd5e2f3542e --- /dev/null +++ b/arch/arm/boot/dts/rk3288-vyasa.dts @@ -0,0 +1,311 @@ +/* + * Copyright (C) 2017 Jagan Teki + * + * This file is dual-licensed: you can use it either under the terms + * of the GPL or the X11 license, at your option. Note that this dual + * licensing only applies to this file, and not this project as a + * whole. + * + * a) This file is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This file is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Or, alternatively, + * + * b) Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +/dts-v1/; +#include "rk3288.dtsi" + +/ { + model = "Amarula Vyasa-RK3288"; + compatible = "amarula,vyasa-rk3288", "rockchip,rk3288"; + + chosen { + stdout-path = &uart2; + }; + + memory { + reg = <0x0 0x0 0x0 0x80000000>; + device_type = "memory"; + }; + + vcc_sd: sdmmc-regulator { + compatible = "regulator-fixed"; + gpio = <&gpio7 RK_PB3 GPIO_ACTIVE_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&sdmmc_pwr>; + regulator-name = "vcc_sd"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + startup-delay-us = <100000>; + vin-supply = <&vcc_io>; + }; + + vcc_sys: vsys-regulator { + compatible = "regulator-fixed"; + regulator-name = "vcc_sys"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + regulator-always-on; + regulator-boot-on; + }; +}; + +&cpu0 { + cpu0-supply = <&vdd_cpu>; +}; + +&i2c0 { + clock-frequency = <400000>; + status = "okay"; + + rk808: pmic@1b { + compatible = "rockchip,rk808"; + reg = <0x1b>; + interrupt-parent = <&gpio0>; + interrupts = ; + #clock-cells = <1>; + clock-output-names = "xin32k", "rk808-clkout2"; + pinctrl-names = "default"; + pinctrl-0 = <&pmic_int &global_pwroff>; + rockchip,system-power-controller; + wakeup-source; + + vcc1-supply = <&vcc_sys>; + vcc2-supply = <&vcc_sys>; + vcc3-supply = <&vcc_sys>; + vcc4-supply = <&vcc_sys>; + vcc6-supply = <&vcc_sys>; + vcc7-supply = <&vcc_sys>; + vcc8-supply = <&vcc_io>; + vcc9-supply = <&vcc_sys>; + vcc10-supply = <&vcc_sys>; + vcc11-supply = <&vcc_sys>; + vcc12-supply = <&vcc_io>; + + regulators { + vdd_cpu: vdd_log: DCDC_REG1 { + regulator-name = "vdd_log"; + regulator-min-microvolt = <750000>; + regulator-max-microvolt = <1350000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + vdd_gpu: DCDC_REG2 { + regulator-name = "vdd_gpu"; + regulator-min-microvolt = <850000>; + regulator-max-microvolt = <1250000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-suspend-microvolt = <1000000>; + }; + }; + + vcc_ddr: DCDC_REG3 { + regulator-name = "vcc_ddr"; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + }; + }; + + vcc_io: DCDC_REG4 { + regulator-name = "vcc_io"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-suspend-microvolt = <3300000>; + }; + }; + + vcca_tp: LDO_REG1 { + regulator-name = "vcc_tp"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-suspend-microvolt = <3300000>; + }; + }; + + vcc_codec: LDO_REG2 { + regulator-name = "vcc_codec"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + vdd_10: LDO_REG3 { + regulator-name = "vdd_10"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-suspend-microvolt = <1000000>; + }; + }; + + vcc_gps: LDO_REG4 { + regulator-name = "vcc_gps"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-suspend-microvolt = <1800000>; + }; + }; + + vccio_sd: LDO_REG5 { + regulator-name = "vccio_sd"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-suspend-microvolt = <3300000>; + }; + }; + + vcc10_lcd: LDO_REG6 { + regulator-name = "vcc10_lcd"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-suspend-microvolt = <1800000>; + }; + }; + + vcc_18: LDO_REG7 { + regulator-name = "vcc_18"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-suspend-microvolt = <1800000>; + }; + }; + + vcc18_lcd: LDO_REG8 { + regulator-name = "vcc18_lcd"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + regulator-suspend-microvolt = <1800000>; + }; + }; + + vcc33_sd: SWITCH_REG1 { + regulator-name = "vcc33_sd"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + }; + }; + + vcc_lan: SWITCH_REG2 { + regulator-name = "vcc_lan"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + }; + }; + }; + }; +}; + +&sdmmc { + bus-width = <4>; + cap-mmc-highspeed; + cap-sd-highspeed; + card-detect-delay = <200>; + disable-wp; + pinctrl-names = "default"; + pinctrl-0 = <&sdmmc_clk>, <&sdmmc_cmd>, <&sdmmc_cd>, <&sdmmc_bus4>; + vmmc-supply = <&vcc_sd>; + vqmmc-supply = <&vccio_sd>; + status = "okay"; +}; + +&uart2 { + status = "okay"; +}; + +&wdt { + status = "okay"; +}; + +&pinctrl { + pmic { + pmic_int: pmic-int { + rockchip,pins = ; + }; + }; + + sdmmc { + sdmmc_pwr: sdmmc-pwr { + rockchip,pins = <7 11 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; +}; -- cgit v1.2.3 From 912620c02c314a697b05d52263212c24a2a6b05b Mon Sep 17 00:00:00 2001 From: Tomas Novotny Date: Mon, 26 Jun 2017 16:30:16 +0200 Subject: dt-bindings: add vendor prefix for Touchless Biometric Systems AG TBS is a company providing biometrics products and solution in Access control and time management. Signed-off-by: Tomas Novotny Acked-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 1ea1fd4232ab..26d105625d38 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -329,6 +329,7 @@ swir Sierra Wireless syna Synaptics Inc. synology Synology, Inc. tbs TBS Technologies +tbs-biometrics Touchless Biometric Systems AG tcg Trusted Computing Group tcl Toby Churchill Ltd. technexion TechNexion -- cgit v1.2.3 From 17760376ae31e06f66b3c3b8981f5978d4c53150 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 12 Sep 2017 23:37:18 +0300 Subject: soc: renesas: rcar-rst: add R8A77970 support Add support for R-Car V3M (R8A77970) to the R-Car RST driver -- this driver is needed for the clock driver to work. Signed-off-by: Sergei Shtylyov Reviewed-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- Documentation/devicetree/bindings/reset/renesas,rst.txt | 1 + drivers/soc/renesas/Kconfig | 3 ++- drivers/soc/renesas/rcar-rst.c | 1 + 3 files changed, 4 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/reset/renesas,rst.txt b/Documentation/devicetree/bindings/reset/renesas,rst.txt index e5a03ffe04fb..a8014f3ab8ba 100644 --- a/Documentation/devicetree/bindings/reset/renesas,rst.txt +++ b/Documentation/devicetree/bindings/reset/renesas,rst.txt @@ -26,6 +26,7 @@ Required properties: - "renesas,r8a7794-rst" (R-Car E2) - "renesas,r8a7795-rst" (R-Car H3) - "renesas,r8a7796-rst" (R-Car M3-W) + - "renesas,r8a77970-rst" (R-Car V3M) - "renesas,r8a77995-rst" (R-Car D3) - reg: Address start and address range for the device. diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig index 567414cb42ba..f0d562a7c4d3 100644 --- a/drivers/soc/renesas/Kconfig +++ b/drivers/soc/renesas/Kconfig @@ -3,7 +3,8 @@ config SOC_RENESAS default y if ARCH_RENESAS select SOC_BUS select RST_RCAR if ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || \ - ARCH_R8A7795 || ARCH_R8A7796 || ARCH_R8A77995 + ARCH_R8A7795 || ARCH_R8A7796 || ARCH_R8A77970 || \ + ARCH_R8A77995 select SYSC_R8A7743 if ARCH_R8A7743 select SYSC_R8A7745 if ARCH_R8A7745 select SYSC_R8A7779 if ARCH_R8A7779 diff --git a/drivers/soc/renesas/rcar-rst.c b/drivers/soc/renesas/rcar-rst.c index baa47014e96b..3316b028f231 100644 --- a/drivers/soc/renesas/rcar-rst.c +++ b/drivers/soc/renesas/rcar-rst.c @@ -41,6 +41,7 @@ static const struct of_device_id rcar_rst_matches[] __initconst = { /* R-Car Gen3 is handled like R-Car Gen2 */ { .compatible = "renesas,r8a7795-rst", .data = &rcar_rst_gen2 }, { .compatible = "renesas,r8a7796-rst", .data = &rcar_rst_gen2 }, + { .compatible = "renesas,r8a77970-rst", .data = &rcar_rst_gen2 }, { .compatible = "renesas,r8a77995-rst", .data = &rcar_rst_gen2 }, { /* sentinel */ } }; -- cgit v1.2.3 From 055fb568157c3a6754228138b3ca51247cb4f466 Mon Sep 17 00:00:00 2001 From: Fabrizio Castro Date: Tue, 22 Aug 2017 14:52:19 +0100 Subject: dt-bindings: apmu: Document r8a7745 support Document APMU and SMP enable method for RZ/G1E (also known as r8a7745) SoC. Signed-off-by: Fabrizio Castro Signed-off-by: Simon Horman --- Documentation/devicetree/bindings/power/renesas,apmu.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/power/renesas,apmu.txt b/Documentation/devicetree/bindings/power/renesas,apmu.txt index af21502e939c..f747f95eee58 100644 --- a/Documentation/devicetree/bindings/power/renesas,apmu.txt +++ b/Documentation/devicetree/bindings/power/renesas,apmu.txt @@ -8,6 +8,7 @@ Required properties: - compatible: Should be "renesas,-apmu", "renesas,apmu" as fallback. Examples with soctypes are: - "renesas,r8a7743-apmu" (RZ/G1M) + - "renesas,r8a7745-apmu" (RZ/G1E) - "renesas,r8a7790-apmu" (R-Car H2) - "renesas,r8a7791-apmu" (R-Car M2-W) - "renesas,r8a7792-apmu" (R-Car V2H) -- cgit v1.2.3 From 8ac491a5d0934bf1a77db155d759c682ab790c45 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 30 Aug 2017 11:53:01 +0200 Subject: dt-bindings: display: renesas: dw-hdmi: Drop bogus node name suffix Node names should not use numerical suffixes if the nodes can be distinguished by unit-address. Signed-off-by: Geert Uytterhoeven Acked-by: Laurent Pinchart Signed-off-by: Simon Horman --- Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt b/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt index b1a8929c2536..3a72a103a18a 100644 --- a/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt +++ b/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt @@ -37,7 +37,7 @@ Optional properties: Example: - hdmi0: hdmi0@fead0000 { + hdmi0: hdmi@fead0000 { compatible = "renesas,r8a7795-dw-hdmi"; reg = <0 0xfead0000 0 0x10000>; interrupts = <0 389 IRQ_TYPE_LEVEL_HIGH>; -- cgit v1.2.3 From 443c1631172a7a6dc19c1657425354327858a548 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 25 Aug 2017 14:56:49 +0200 Subject: ARM: shmobile: Document R-Car V3M SoC DT bindings Signed-off-by: Geert Uytterhoeven Acked-by: Rob Herring Signed-off-by: Simon Horman --- Documentation/devicetree/bindings/arm/shmobile.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/shmobile.txt b/Documentation/devicetree/bindings/arm/shmobile.txt index ae75cb3b1331..a1f06711a4dd 100644 --- a/Documentation/devicetree/bindings/arm/shmobile.txt +++ b/Documentation/devicetree/bindings/arm/shmobile.txt @@ -39,6 +39,8 @@ SoCs: compatible = "renesas,r8a7795" - R-Car M3-W (R8A77960) compatible = "renesas,r8a7796" + - R-Car V3M (R8A77970) + compatible = "renesas,r8a77970" - R-Car D3 (R8A77995) compatible = "renesas,r8a77995" -- cgit v1.2.3 From bab9b2a74fe9da96e895e0919f625679a0a8c964 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 12 Sep 2017 23:37:20 +0300 Subject: soc: renesas: rcar-sysc: add R8A77970 support Add support for R-Car V3M (R8A77970) SoC power areas to the R-Car SYSC driver. Based on the original (and large) patch by Daisuke Matsushita . Signed-off-by: Vladimir Barinov Signed-off-by: Sergei Shtylyov Reviewed-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- .../bindings/power/renesas,rcar-sysc.txt | 1 + drivers/soc/renesas/Kconfig | 5 +++ drivers/soc/renesas/Makefile | 1 + drivers/soc/renesas/r8a77970-sysc.c | 39 ++++++++++++++++++++++ drivers/soc/renesas/rcar-sysc.c | 3 ++ drivers/soc/renesas/rcar-sysc.h | 1 + 6 files changed, 50 insertions(+) create mode 100644 drivers/soc/renesas/r8a77970-sysc.c (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt b/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt index 98cc8c09d02d..8690f10426a3 100644 --- a/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt +++ b/Documentation/devicetree/bindings/power/renesas,rcar-sysc.txt @@ -17,6 +17,7 @@ Required properties: - "renesas,r8a7794-sysc" (R-Car E2) - "renesas,r8a7795-sysc" (R-Car H3) - "renesas,r8a7796-sysc" (R-Car M3-W) + - "renesas,r8a77970-sysc" (R-Car V3M) - "renesas,r8a77995-sysc" (R-Car D3) - reg: Address start and address range for the device. - #power-domain-cells: Must be 1. diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig index f0d562a7c4d3..09550b1da56d 100644 --- a/drivers/soc/renesas/Kconfig +++ b/drivers/soc/renesas/Kconfig @@ -14,6 +14,7 @@ config SOC_RENESAS select SYSC_R8A7794 if ARCH_R8A7794 select SYSC_R8A7795 if ARCH_R8A7795 select SYSC_R8A7796 if ARCH_R8A7796 + select SYSC_R8A77970 if ARCH_R8A77970 select SYSC_R8A77995 if ARCH_R8A77995 if SOC_RENESAS @@ -55,6 +56,10 @@ config SYSC_R8A7796 bool "R-Car M3-W System Controller support" if COMPILE_TEST select SYSC_RCAR +config SYSC_R8A77970 + bool "R-Car V3M System Controller support" if COMPILE_TEST + select SYSC_RCAR + config SYSC_R8A77995 bool "R-Car D3 System Controller support" if COMPILE_TEST select SYSC_RCAR diff --git a/drivers/soc/renesas/Makefile b/drivers/soc/renesas/Makefile index 6b6e7f16104c..8334af1d231b 100644 --- a/drivers/soc/renesas/Makefile +++ b/drivers/soc/renesas/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_SYSC_R8A7792) += r8a7792-sysc.o obj-$(CONFIG_SYSC_R8A7794) += r8a7794-sysc.o obj-$(CONFIG_SYSC_R8A7795) += r8a7795-sysc.o obj-$(CONFIG_SYSC_R8A7796) += r8a7796-sysc.o +obj-$(CONFIG_SYSC_R8A77970) += r8a77970-sysc.o obj-$(CONFIG_SYSC_R8A77995) += r8a77995-sysc.o # Family diff --git a/drivers/soc/renesas/r8a77970-sysc.c b/drivers/soc/renesas/r8a77970-sysc.c new file mode 100644 index 000000000000..8c614164718e --- /dev/null +++ b/drivers/soc/renesas/r8a77970-sysc.c @@ -0,0 +1,39 @@ +/* + * Renesas R-Car V3M System Controller + * + * Copyright (C) 2017 Cogent Embedded Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include + +#include + +#include "rcar-sysc.h" + +static const struct rcar_sysc_area r8a77970_areas[] __initconst = { + { "always-on", 0, 0, R8A77970_PD_ALWAYS_ON, -1, PD_ALWAYS_ON }, + { "ca53-scu", 0x140, 0, R8A77970_PD_CA53_SCU, R8A77970_PD_ALWAYS_ON, + PD_SCU }, + { "ca53-cpu0", 0x200, 0, R8A77970_PD_CA53_CPU0, R8A77970_PD_CA53_SCU, + PD_CPU_NOCR }, + { "ca53-cpu1", 0x200, 1, R8A77970_PD_CA53_CPU1, R8A77970_PD_CA53_SCU, + PD_CPU_NOCR }, + { "cr7", 0x240, 0, R8A77970_PD_CR7, R8A77970_PD_ALWAYS_ON }, + { "a3ir", 0x180, 0, R8A77970_PD_A3IR, R8A77970_PD_ALWAYS_ON }, + { "a2ir0", 0x400, 0, R8A77970_PD_A2IR0, R8A77970_PD_ALWAYS_ON }, + { "a2ir1", 0x400, 1, R8A77970_PD_A2IR1, R8A77970_PD_A2IR0 }, + { "a2ir2", 0x400, 2, R8A77970_PD_A2IR2, R8A77970_PD_A2IR0 }, + { "a2ir3", 0x400, 3, R8A77970_PD_A2IR3, R8A77970_PD_A2IR0 }, + { "a2sc0", 0x400, 4, R8A77970_PD_A2SC0, R8A77970_PD_ALWAYS_ON }, + { "a2sc1", 0x400, 5, R8A77970_PD_A2SC1, R8A77970_PD_A2SC0 }, +}; + +const struct rcar_sysc_info r8a77970_sysc_info __initconst = { + .areas = r8a77970_areas, + .num_areas = ARRAY_SIZE(r8a77970_areas), +}; diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c index c8406e81640f..55a47e509e49 100644 --- a/drivers/soc/renesas/rcar-sysc.c +++ b/drivers/soc/renesas/rcar-sysc.c @@ -284,6 +284,9 @@ static const struct of_device_id rcar_sysc_matches[] = { #ifdef CONFIG_SYSC_R8A7796 { .compatible = "renesas,r8a7796-sysc", .data = &r8a7796_sysc_info }, #endif +#ifdef CONFIG_SYSC_R8A77970 + { .compatible = "renesas,r8a77970-sysc", .data = &r8a77970_sysc_info }, +#endif #ifdef CONFIG_SYSC_R8A77995 { .compatible = "renesas,r8a77995-sysc", .data = &r8a77995_sysc_info }, #endif diff --git a/drivers/soc/renesas/rcar-sysc.h b/drivers/soc/renesas/rcar-sysc.h index 2f524922c4d2..9d9daf9eb91b 100644 --- a/drivers/soc/renesas/rcar-sysc.h +++ b/drivers/soc/renesas/rcar-sysc.h @@ -58,6 +58,7 @@ extern const struct rcar_sysc_info r8a7792_sysc_info; extern const struct rcar_sysc_info r8a7794_sysc_info; extern const struct rcar_sysc_info r8a7795_sysc_info; extern const struct rcar_sysc_info r8a7796_sysc_info; +extern const struct rcar_sysc_info r8a77970_sysc_info; extern const struct rcar_sysc_info r8a77995_sysc_info; -- cgit v1.2.3 From 376349232a93645624426db782cafe688054e6d6 Mon Sep 17 00:00:00 2001 From: Eugeniy Paltsev Date: Thu, 14 Sep 2017 17:28:42 +0300 Subject: ARC: reset: introduce AXS10x reset driver ARC AXS10x boards support custom IP-block which allows to control reset signals of selected peripherals. For example DW GMAC, etc... This block is controlled via memory-mapped register (AKA CREG) which represents up-to 32 reset lines. This regiter is self-clearing so we don't need to deassert line after reset. As of today only the following lines are used: - DW GMAC - line 5 Signed-off-by: Eugeniy Paltsev Signed-off-by: Philipp Zabel --- .../bindings/reset/snps,axs10x-reset.txt | 33 +++++++++ MAINTAINERS | 6 ++ drivers/reset/Kconfig | 6 ++ drivers/reset/Makefile | 1 + drivers/reset/reset-axs10x.c | 83 ++++++++++++++++++++++ 5 files changed, 129 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/snps,axs10x-reset.txt create mode 100644 drivers/reset/reset-axs10x.c (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/reset/snps,axs10x-reset.txt b/Documentation/devicetree/bindings/reset/snps,axs10x-reset.txt new file mode 100644 index 000000000000..32d8435a41df --- /dev/null +++ b/Documentation/devicetree/bindings/reset/snps,axs10x-reset.txt @@ -0,0 +1,33 @@ +Binding for the AXS10x reset controller + +This binding describes the ARC AXS10x boards custom IP-block which allows +to control reset signals of selected peripherals. For example DW GMAC, etc... +This block is controlled via memory-mapped register (AKA CREG) which +represents up-to 32 reset lines. + +As of today only the following lines are used: + - DW GMAC - line 5 + +This binding uses the common reset binding[1]. + +[1] Documentation/devicetree/bindings/reset/reset.txt + +Required properties: +- compatible: should be "snps,axs10x-reset". +- reg: should always contain pair address - length: for creg reset + bits register. +- #reset-cells: from common reset binding; Should always be set to 1. + +Example: + reset: reset-controller@11220 { + compatible = "snps,axs10x-reset"; + #reset-cells = <1>; + reg = <0x11220 0x4>; + }; + +Specifying reset lines connected to IP modules: + ethernet@.... { + .... + resets = <&reset 5>; + .... + }; diff --git a/MAINTAINERS b/MAINTAINERS index 2281af4b41b6..2cf502eeb774 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12883,6 +12883,12 @@ F: arch/arc/plat-axs10x F: arch/arc/boot/dts/ax* F: Documentation/devicetree/bindings/arc/axs10* +SYNOPSYS AXS10x RESET CONTROLLER DRIVER +M: Eugeniy Paltsev +S: Supported +F: drivers/reset/reset-axs10x.c +F: Documentation/devicetree/bindings/reset/snps,axs10x-reset.txt + SYNOPSYS DESIGNWARE DMAC DRIVER M: Viresh Kumar M: Andy Shevchenko diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig index e0c393214264..23ec43f99d9a 100644 --- a/drivers/reset/Kconfig +++ b/drivers/reset/Kconfig @@ -28,6 +28,12 @@ config RESET_ATH79 This enables the ATH79 reset controller driver that supports the AR71xx SoC reset controller. +config RESET_AXS10X + bool "AXS10x Reset Driver" if COMPILE_TEST + default ARC_PLAT_AXS10X + help + This enables the reset controller driver for AXS10x. + config RESET_BERLIN bool "Berlin Reset Driver" if COMPILE_TEST default ARCH_BERLIN diff --git a/drivers/reset/Makefile b/drivers/reset/Makefile index d368367110e5..7579dba7b185 100644 --- a/drivers/reset/Makefile +++ b/drivers/reset/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_ARCH_STI) += sti/ obj-$(CONFIG_ARCH_TEGRA) += tegra/ obj-$(CONFIG_RESET_A10SR) += reset-a10sr.o obj-$(CONFIG_RESET_ATH79) += reset-ath79.o +obj-$(CONFIG_RESET_AXS10X) += reset-axs10x.o obj-$(CONFIG_RESET_BERLIN) += reset-berlin.o obj-$(CONFIG_RESET_HSDK_V1) += reset-hsdk-v1.o obj-$(CONFIG_RESET_IMX7) += reset-imx7.o diff --git a/drivers/reset/reset-axs10x.c b/drivers/reset/reset-axs10x.c new file mode 100644 index 000000000000..afb298e46bd9 --- /dev/null +++ b/drivers/reset/reset-axs10x.c @@ -0,0 +1,83 @@ +/* + * Copyright (C) 2017 Synopsys. + * + * Synopsys AXS10x reset driver. + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include + +#define to_axs10x_rst(p) container_of((p), struct axs10x_rst, rcdev) + +#define AXS10X_MAX_RESETS 32 + +struct axs10x_rst { + void __iomem *regs_rst; + spinlock_t lock; + struct reset_controller_dev rcdev; +}; + +static int axs10x_reset_reset(struct reset_controller_dev *rcdev, + unsigned long id) +{ + struct axs10x_rst *rst = to_axs10x_rst(rcdev); + unsigned long flags; + + spin_lock_irqsave(&rst->lock, flags); + writel(BIT(id), rst->regs_rst); + spin_unlock_irqrestore(&rst->lock, flags); + + return 0; +} + +static const struct reset_control_ops axs10x_reset_ops = { + .reset = axs10x_reset_reset, +}; + +static int axs10x_reset_probe(struct platform_device *pdev) +{ + struct axs10x_rst *rst; + struct resource *mem; + + rst = devm_kzalloc(&pdev->dev, sizeof(*rst), GFP_KERNEL); + if (!rst) + return -ENOMEM; + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + rst->regs_rst = devm_ioremap_resource(&pdev->dev, mem); + if (IS_ERR(rst->regs_rst)) + return PTR_ERR(rst->regs_rst); + + spin_lock_init(&rst->lock); + + rst->rcdev.owner = THIS_MODULE; + rst->rcdev.ops = &axs10x_reset_ops; + rst->rcdev.of_node = pdev->dev.of_node; + rst->rcdev.nr_resets = AXS10X_MAX_RESETS; + + return devm_reset_controller_register(&pdev->dev, &rst->rcdev); +} + +static const struct of_device_id axs10x_reset_dt_match[] = { + { .compatible = "snps,axs10x-reset" }, + { }, +}; + +static struct platform_driver axs10x_reset_driver = { + .probe = axs10x_reset_probe, + .driver = { + .name = "axs10x-reset", + .of_match_table = axs10x_reset_dt_match, + }, +}; +builtin_platform_driver(axs10x_reset_driver); + +MODULE_AUTHOR("Eugeniy Paltsev "); +MODULE_DESCRIPTION("Synopsys AXS10x reset driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From 785ec87483d1e24a012ecf642ee7d07c4118f142 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 12 Sep 2017 23:02:08 +0300 Subject: ravb: document R8A77970 bindings R-Car V3M (R8A77970) SoC also has the R-Car gen3 compatible EtherAVB device, so document the SoC specific bindings. Signed-off-by: Sergei Shtylyov Acked-by: Simon Horman Reviewed-by: Geert Uytterhoeven Signed-off-by: David S. Miller --- Documentation/devicetree/bindings/net/renesas,ravb.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/renesas,ravb.txt b/Documentation/devicetree/bindings/net/renesas,ravb.txt index 16723535e1aa..2689211d324c 100644 --- a/Documentation/devicetree/bindings/net/renesas,ravb.txt +++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt @@ -17,6 +17,7 @@ Required properties: - "renesas,etheravb-r8a7795" for the R8A7795 SoC. - "renesas,etheravb-r8a7796" for the R8A7796 SoC. + - "renesas,etheravb-r8a77970" for the R8A77970 SoC. - "renesas,etheravb-rcar-gen3" as a fallback for the above R-Car Gen3 devices. @@ -40,7 +41,7 @@ Optional properties: - interrupt-parent: the phandle for the interrupt controller that services interrupts for this device. - interrupt-names: A list of interrupt names. - For the R8A779[56] SoCs this property is mandatory; + For the R-Car Gen 3 SoCs this property is mandatory; it should include one entry per channel, named "ch%u", where %u is the channel number ranging from 0 to 24. For other SoCs this property is optional; if present -- cgit v1.2.3 From f231c4178a655b09c1fe4dce4b09de7b867c20af Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Thu, 14 Sep 2017 09:06:38 +0900 Subject: dt-bindings: net: renesas-ravb: Add support for R8A77995 RAVB Add a new compatible string for the R8A77995 (R-Car D3) RAVB. Signed-off-by: Yoshihiro Shimoda Acked-by: Geert Uytterhoeven Acked-by: Sergei Shtylyov Acked-by: Simon Horman Signed-off-by: David S. Miller --- Documentation/devicetree/bindings/net/renesas,ravb.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/renesas,ravb.txt b/Documentation/devicetree/bindings/net/renesas,ravb.txt index 2689211d324c..c902261893b9 100644 --- a/Documentation/devicetree/bindings/net/renesas,ravb.txt +++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt @@ -18,6 +18,7 @@ Required properties: - "renesas,etheravb-r8a7795" for the R8A7795 SoC. - "renesas,etheravb-r8a7796" for the R8A7796 SoC. - "renesas,etheravb-r8a77970" for the R8A77970 SoC. + - "renesas,etheravb-r8a77995" for the R8A77995 SoC. - "renesas,etheravb-rcar-gen3" as a fallback for the above R-Car Gen3 devices. -- cgit v1.2.3 From 367f15d3130e0d6c6818a4ace2463914e8c78e2c Mon Sep 17 00:00:00 2001 From: Markus Mayer Date: Thu, 24 Aug 2017 16:36:25 -0700 Subject: dt-bindings: Add bindings for Broadcom STB DRAM Sensors Provide bindings for the Broadcom STB DDR PHY Front End (DPFE). Signed-off-by: Markus Mayer Acked-by: Rob Herring Signed-off-by: Florian Fainelli --- .../bindings/memory-controllers/brcm,dpfe-cpu.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.txt b/Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.txt new file mode 100644 index 000000000000..82d923ef413f --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.txt @@ -0,0 +1,27 @@ +DDR PHY Front End (DPFE) for Broadcom STB +========================================= + +DPFE and the DPFE firmware provide an interface for the host CPU to +communicate with the DCPU, which resides inside the DDR PHY. + +There are three memory regions for interacting with the DCPU. These are +specified in a single reg property. + +Required properties: + - compatible: must be "brcm,bcm7271-dpfe-cpu", "brcm,bcm7268-dpfe-cpu" + or "brcm,dpfe-cpu" + - reg: must reference three register ranges + - start address and length of the DCPU register space + - start address and length of the DCPU data memory space + - start address and length of the DCPU instruction memory space + - reg-names: must contain "dpfe-cpu", "dpfe-dmem", and "dpfe-imem"; + they must be in the same order as the register declarations + +Example: + dpfe_cpu0: dpfe-cpu@f1132000 { + compatible = "brcm,bcm7271-dpfe-cpu", "brcm,dpfe-cpu"; + reg = <0xf1132000 0x180 + 0xf1134000 0x1000 + 0xf1138000 0x4000>; + reg-names = "dpfe-cpu", "dpfe-dmem", "dpfe-imem"; + }; -- cgit v1.2.3 From 9600c2340ded841076367cc78fdd2b65e1cf8ed8 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 15 Jun 2017 13:39:51 -0700 Subject: dt-bindings: ARM: brcmstb: Update Broadcom STB Power Management binding Update the Broadcom STB Power Management binding document with new compatible strings for the DDR PHY and memory controller found on newer chips. Acked-by: Rob Herring Signed-off-by: Florian Fainelli --- Documentation/devicetree/bindings/arm/bcm/brcm,brcmstb.txt | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,brcmstb.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,brcmstb.txt index 0d0c1ae81bed..790e6b0b8306 100644 --- a/Documentation/devicetree/bindings/arm/bcm/brcm,brcmstb.txt +++ b/Documentation/devicetree/bindings/arm/bcm/brcm,brcmstb.txt @@ -164,6 +164,8 @@ Control registers for this memory controller's DDR PHY. Required properties: - compatible : should contain one of these + "brcm,brcmstb-ddr-phy-v71.1" + "brcm,brcmstb-ddr-phy-v72.0" "brcm,brcmstb-ddr-phy-v225.1" "brcm,brcmstb-ddr-phy-v240.1" "brcm,brcmstb-ddr-phy-v240.2" @@ -184,7 +186,9 @@ Sequencer DRAM parameters and control registers. Used for Self-Refresh Power-Down (SRPD), among other things. Required properties: -- compatible : should contain "brcm,brcmstb-memc-ddr" +- compatible : should contain one of these + "brcm,brcmstb-memc-ddr-rev-b.2.2" + "brcm,brcmstb-memc-ddr" - reg : the MEMC DDR register range Example: -- cgit v1.2.3 From 0e1bfb72b076b07dc844bf33c19d62a3075f540f Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 30 Aug 2017 11:57:31 +0200 Subject: v4l: vsp1: Use generic node name Use the preferred generic node name in the example. Signed-off-by: Geert Uytterhoeven Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/media/renesas,vsp1.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/renesas,vsp1.txt b/Documentation/devicetree/bindings/media/renesas,vsp1.txt index 9b695bcbf219..16427017cb45 100644 --- a/Documentation/devicetree/bindings/media/renesas,vsp1.txt +++ b/Documentation/devicetree/bindings/media/renesas,vsp1.txt @@ -22,7 +22,7 @@ Optional properties: Example: R8A7790 (R-Car H2) VSP1-S node - vsp1@fe928000 { + vsp@fe928000 { compatible = "renesas,vsp1"; reg = <0 0xfe928000 0 0x8000>; interrupts = <0 267 IRQ_TYPE_LEVEL_HIGH>; -- cgit v1.2.3 From 716f1c8992ebbb321c5ad1ff6823a9e9074007e8 Mon Sep 17 00:00:00 2001 From: YuanCheng Cheng Date: Sat, 9 Sep 2017 19:40:58 +0800 Subject: dt-bindings: vendor-prefixes: Add nutsboard MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit NutsBoard (http://nutsboard.org/) is an organization and focus on ARM based embedded boards with open source software. Signed-off-by: YuanCheng Cheng Reviewed-by: Fabio Estevam Reviewed-by: Andreas Färber Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 1ea1fd4232ab..f461616cf85f 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -235,6 +235,7 @@ nintendo Nintendo nlt NLT Technologies, Ltd. nokia Nokia nordic Nordic Semiconductor +nutsboard NutsBoard nuvoton Nuvoton Technology Corporation nvd New Vision Display nvidia NVIDIA -- cgit v1.2.3 From 0bf4b3fadb5663959605d584410412dce53406cc Mon Sep 17 00:00:00 2001 From: Fabrizio Castro Date: Mon, 11 Sep 2017 09:30:23 +0100 Subject: of: add vendor prefix for Silicon Storage Technology Inc. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add Silicon Storage Technology Inc. to the list of devicetree vendor prefixes. Signed-off-by: Fabrizio Castro Reviewed-by: Andreas Färber Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index f461616cf85f..c6ef403e6321 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -318,6 +318,7 @@ solomon Solomon Systech Limited sony Sony Corporation spansion Spansion Inc. sprd Spreadtrum Communications Inc. +sst Silicon Storage Technology, Inc. st STMicroelectronics starry Starry Electronic Technology (ShenZhen) Co., LTD startek Startek -- cgit v1.2.3 From a621c99a96e64e3d6d5d47745a5e832262ac8f7c Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 12 Sep 2017 09:32:34 +0200 Subject: gpio: Clarify consumer stubs use-cases After discussion we add a few blurbs to clarify how the stubs in the consumer API are supposed to be used. Cc: Florian Fainelli Cc: Sergei Shtylyov Cc: Andrew Lunn Signed-off-by: Linus Walleij --- Documentation/gpio/consumer.txt | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/gpio/consumer.txt b/Documentation/gpio/consumer.txt index 912568baabb9..ddbfa775a78a 100644 --- a/Documentation/gpio/consumer.txt +++ b/Documentation/gpio/consumer.txt @@ -10,14 +10,30 @@ Guidelines for GPIOs consumers ============================== Drivers that can't work without standard GPIO calls should have Kconfig entries -that depend on GPIOLIB. The functions that allow a driver to obtain and use -GPIOs are available by including the following file: +that depend on GPIOLIB or select GPIOLIB. The functions that allow a driver to +obtain and use GPIOs are available by including the following file: #include +There are static inline stubs for all functions in the header file in the case +where GPIOLIB is disabled. When these stubs are called they will emit +warnings. These stubs are used for two use cases: + +- Simple compile coverage with e.g. COMPILE_TEST - it does not matter that + the current platform does not enable or select GPIOLIB because we are not + going to execute the system anyway. + +- Truly optional GPIOLIB support - where the driver does not really make use + of the GPIOs on certain compile-time configurations for certain systems, but + will use it under other compile-time configurations. In this case the + consumer must make sure not to call into these functions, or the user will + be met with console warnings that may be perceived as intimidating. + All the functions that work with the descriptor-based GPIO interface are prefixed with gpiod_. The gpio_ prefix is used for the legacy interface. No -other function in the kernel should use these prefixes. +other function in the kernel should use these prefixes. The use of the legacy +functions is strongly discouraged, new code should use +and descriptors exclusively. Obtaining and Disposing GPIOs -- cgit v1.2.3 From 8d46e28fb5081b49c5b24c814ad464fb99359d58 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Sat, 9 Sep 2017 00:34:20 +0300 Subject: clk: renesas: cpg-mssr: Add R8A77970 support Add R-Car V3M (R8A77970) Clock Pulse Generator / Module Standby and Software Reset support, using the CPG/MSSR driver core and the common R-Car Gen3 code. Based on the original (and large) patch by Daisuke Matsushita . Signed-off-by: Vladimir Barinov Signed-off-by: Sergei Shtylyov Signed-off-by: Geert Uytterhoeven --- .../devicetree/bindings/clock/renesas,cpg-mssr.txt | 5 +- drivers/clk/renesas/Kconfig | 5 + drivers/clk/renesas/Makefile | 1 + drivers/clk/renesas/r8a77970-cpg-mssr.c | 199 +++++++++++++++++++++ drivers/clk/renesas/renesas-cpg-mssr.c | 6 + drivers/clk/renesas/renesas-cpg-mssr.h | 1 + 6 files changed, 215 insertions(+), 2 deletions(-) create mode 100644 drivers/clk/renesas/r8a77970-cpg-mssr.c (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt index 316e13686568..f1890d0777a6 100644 --- a/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt +++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt @@ -22,6 +22,7 @@ Required Properties: - "renesas,r8a7794-cpg-mssr" for the r8a7794 SoC (R-Car E2) - "renesas,r8a7795-cpg-mssr" for the r8a7795 SoC (R-Car H3) - "renesas,r8a7796-cpg-mssr" for the r8a7796 SoC (R-Car M3-W) + - "renesas,r8a77970-cpg-mssr" for the r8a77970 SoC (R-Car V3M) - "renesas,r8a77995-cpg-mssr" for the r8a77995 SoC (R-Car D3) - reg: Base address and length of the memory resource used by the CPG/MSSR @@ -31,8 +32,8 @@ Required Properties: clock-names - clock-names: List of external parent clock names. Valid names are: - "extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7792, r8a7793, r8a7794, - r8a7795, r8a7796, r8a77995) - - "extalr" (r8a7795, r8a7796) + r8a7795, r8a7796, r8a77970, r8a77995) + - "extalr" (r8a7795, r8a7796, r8a77970) - "usb_extal" (r8a7743, r8a7745, r8a7790, r8a7791, r8a7793, r8a7794) - #clock-cells: Must be 2 diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig index acbb38151ba1..43b5a89c4b28 100644 --- a/drivers/clk/renesas/Kconfig +++ b/drivers/clk/renesas/Kconfig @@ -15,6 +15,7 @@ config CLK_RENESAS select CLK_R8A7794 if ARCH_R8A7794 select CLK_R8A7795 if ARCH_R8A7795 select CLK_R8A7796 if ARCH_R8A7796 + select CLK_R8A77970 if ARCH_R8A77970 select CLK_R8A77995 if ARCH_R8A77995 select CLK_SH73A0 if ARCH_SH73A0 @@ -95,6 +96,10 @@ config CLK_R8A7796 bool "R-Car M3-W clock support" if COMPILE_TEST select CLK_RCAR_GEN3_CPG +config CLK_R8A77970 + bool "R-Car V3M clock support" if COMPILE_TEST + select CLK_RCAR_GEN3_CPG + config CLK_R8A77995 bool "R-Car D3 clock support" if COMPILE_TEST select CLK_RCAR_GEN3_CPG diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile index 9bda3ec5b199..306861c74a87 100644 --- a/drivers/clk/renesas/Makefile +++ b/drivers/clk/renesas/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_CLK_R8A7792) += r8a7792-cpg-mssr.o obj-$(CONFIG_CLK_R8A7794) += r8a7794-cpg-mssr.o obj-$(CONFIG_CLK_R8A7795) += r8a7795-cpg-mssr.o obj-$(CONFIG_CLK_R8A7796) += r8a7796-cpg-mssr.o +obj-$(CONFIG_CLK_R8A77970) += r8a77970-cpg-mssr.o obj-$(CONFIG_CLK_R8A77995) += r8a77995-cpg-mssr.o obj-$(CONFIG_CLK_SH73A0) += clk-sh73a0.o diff --git a/drivers/clk/renesas/r8a77970-cpg-mssr.c b/drivers/clk/renesas/r8a77970-cpg-mssr.c new file mode 100644 index 000000000000..72f98527473a --- /dev/null +++ b/drivers/clk/renesas/r8a77970-cpg-mssr.c @@ -0,0 +1,199 @@ +/* + * r8a77970 Clock Pulse Generator / Module Standby and Software Reset + * + * Copyright (C) 2017 Cogent Embedded Inc. + * + * Based on r8a7795-cpg-mssr.c + * + * Copyright (C) 2015 Glider bvba + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + */ + +#include +#include +#include +#include + +#include + +#include "renesas-cpg-mssr.h" +#include "rcar-gen3-cpg.h" + +enum clk_ids { + /* Core Clock Outputs exported to DT */ + LAST_DT_CORE_CLK = R8A77970_CLK_OSC, + + /* External Input Clocks */ + CLK_EXTAL, + CLK_EXTALR, + + /* Internal Core Clocks */ + CLK_MAIN, + CLK_PLL0, + CLK_PLL1, + CLK_PLL3, + CLK_PLL1_DIV2, + CLK_PLL1_DIV4, + + /* Module Clocks */ + MOD_CLK_BASE +}; + +static const struct cpg_core_clk r8a77970_core_clks[] __initconst = { + /* External Clock Inputs */ + DEF_INPUT("extal", CLK_EXTAL), + DEF_INPUT("extalr", CLK_EXTALR), + + /* Internal Core Clocks */ + DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL), + DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN), + DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN), + DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN), + + DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1), + DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4, CLK_PLL1_DIV2, 2, 1), + + /* Core Clock Outputs */ + DEF_FIXED("ztr", R8A77970_CLK_ZTR, CLK_PLL1_DIV2, 6, 1), + DEF_FIXED("ztrd2", R8A77970_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1), + DEF_FIXED("zt", R8A77970_CLK_ZT, CLK_PLL1_DIV2, 4, 1), + DEF_FIXED("zx", R8A77970_CLK_ZX, CLK_PLL1_DIV2, 3, 1), + DEF_FIXED("s1d1", R8A77970_CLK_S1D1, CLK_PLL1_DIV2, 4, 1), + DEF_FIXED("s1d2", R8A77970_CLK_S1D2, CLK_PLL1_DIV2, 8, 1), + DEF_FIXED("s1d4", R8A77970_CLK_S1D4, CLK_PLL1_DIV2, 16, 1), + DEF_FIXED("s2d1", R8A77970_CLK_S2D1, CLK_PLL1_DIV2, 6, 1), + DEF_FIXED("s2d2", R8A77970_CLK_S2D2, CLK_PLL1_DIV2, 12, 1), + DEF_FIXED("s2d4", R8A77970_CLK_S2D4, CLK_PLL1_DIV2, 24, 1), + + DEF_FIXED("cl", R8A77970_CLK_CL, CLK_PLL1_DIV2, 48, 1), + DEF_FIXED("cp", R8A77970_CLK_CP, CLK_EXTAL, 2, 1), + + DEF_DIV6P1("canfd", R8A77970_CLK_CANFD, CLK_PLL1_DIV4, 0x244), + DEF_DIV6P1("mso", R8A77970_CLK_MSO, CLK_PLL1_DIV4, 0x014), + DEF_DIV6P1("csi0", R8A77970_CLK_CSI0, CLK_PLL1_DIV4, 0x00c), + + DEF_FIXED("osc", R8A77970_CLK_OSC, CLK_PLL1_DIV2, 12*1024, 1), + DEF_FIXED("r", R8A77970_CLK_R, CLK_EXTALR, 1, 1), +}; + +static const struct mssr_mod_clk r8a77970_mod_clks[] __initconst = { + DEF_MOD("ivcp1e", 127, R8A77970_CLK_S2D1), + DEF_MOD("scif4", 203, R8A77970_CLK_S2D4), + DEF_MOD("scif3", 204, R8A77970_CLK_S2D4), + DEF_MOD("scif1", 206, R8A77970_CLK_S2D4), + DEF_MOD("scif0", 207, R8A77970_CLK_S2D4), + DEF_MOD("msiof3", 208, R8A77970_CLK_MSO), + DEF_MOD("msiof2", 209, R8A77970_CLK_MSO), + DEF_MOD("msiof1", 210, R8A77970_CLK_MSO), + DEF_MOD("msiof0", 211, R8A77970_CLK_MSO), + DEF_MOD("mfis", 213, R8A77970_CLK_S2D2), + DEF_MOD("sys-dmac2", 217, R8A77970_CLK_S2D1), + DEF_MOD("sys-dmac1", 218, R8A77970_CLK_S2D1), + DEF_MOD("rwdt", 402, R8A77970_CLK_R), + DEF_MOD("intc-ex", 407, R8A77970_CLK_CP), + DEF_MOD("intc-ap", 408, R8A77970_CLK_S2D1), + DEF_MOD("hscif3", 517, R8A77970_CLK_S2D1), + DEF_MOD("hscif2", 518, R8A77970_CLK_S2D1), + DEF_MOD("hscif1", 519, R8A77970_CLK_S2D1), + DEF_MOD("hscif0", 520, R8A77970_CLK_S2D1), + DEF_MOD("thermal", 522, R8A77970_CLK_CP), + DEF_MOD("pwm", 523, R8A77970_CLK_S2D4), + DEF_MOD("fcpvd0", 603, R8A77970_CLK_S2D1), + DEF_MOD("vspd0", 623, R8A77970_CLK_S2D1), + DEF_MOD("csi40", 716, R8A77970_CLK_CSI0), + DEF_MOD("du0", 724, R8A77970_CLK_S2D1), + DEF_MOD("vin3", 808, R8A77970_CLK_S2D1), + DEF_MOD("vin2", 809, R8A77970_CLK_S2D1), + DEF_MOD("vin1", 810, R8A77970_CLK_S2D1), + DEF_MOD("vin0", 811, R8A77970_CLK_S2D1), + DEF_MOD("etheravb", 812, R8A77970_CLK_S2D2), + DEF_MOD("gpio5", 907, R8A77970_CLK_CP), + DEF_MOD("gpio4", 908, R8A77970_CLK_CP), + DEF_MOD("gpio3", 909, R8A77970_CLK_CP), + DEF_MOD("gpio2", 910, R8A77970_CLK_CP), + DEF_MOD("gpio1", 911, R8A77970_CLK_CP), + DEF_MOD("gpio0", 912, R8A77970_CLK_CP), + DEF_MOD("can-fd", 914, R8A77970_CLK_S2D2), + DEF_MOD("i2c4", 927, R8A77970_CLK_S2D2), + DEF_MOD("i2c3", 928, R8A77970_CLK_S2D2), + DEF_MOD("i2c2", 929, R8A77970_CLK_S2D2), + DEF_MOD("i2c1", 930, R8A77970_CLK_S2D2), + DEF_MOD("i2c0", 931, R8A77970_CLK_S2D2), +}; + +static const unsigned int r8a77970_crit_mod_clks[] __initconst = { + MOD_CLK_ID(408), /* INTC-AP (GIC) */ +}; + + +/* + * CPG Clock Data + */ + +/* + * MD EXTAL PLL0 PLL1 PLL3 + * 14 13 19 (MHz) + *------------------------------------------------- + * 0 0 0 16.66 x 1 x192 x192 x96 + * 0 0 1 16.66 x 1 x192 x192 x80 + * 0 1 0 20 x 1 x160 x160 x80 + * 0 1 1 20 x 1 x160 x160 x66 + * 1 0 0 27 / 2 x236 x236 x118 + * 1 0 1 27 / 2 x236 x236 x98 + * 1 1 0 33.33 / 2 x192 x192 x96 + * 1 1 1 33.33 / 2 x192 x192 x80 + */ +#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 12) | \ + (((md) & BIT(13)) >> 12) | \ + (((md) & BIT(19)) >> 19)) + +static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[8] __initconst = { + /* EXTAL div PLL1 mult/div PLL3 mult/div */ + { 1, 192, 1, 96, 1, }, + { 1, 192, 1, 80, 1, }, + { 1, 160, 1, 80, 1, }, + { 1, 160, 1, 66, 1, }, + { 2, 236, 1, 118, 1, }, + { 2, 236, 1, 98, 1, }, + { 2, 192, 1, 96, 1, }, + { 2, 192, 1, 80, 1, }, +}; + +static int __init r8a77970_cpg_mssr_init(struct device *dev) +{ + const struct rcar_gen3_cpg_pll_config *cpg_pll_config; + u32 cpg_mode; + int error; + + error = rcar_rst_read_mode_pins(&cpg_mode); + if (error) + return error; + + cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; + + return rcar_gen3_cpg_init(cpg_pll_config, CLK_EXTALR, cpg_mode); +} + +const struct cpg_mssr_info r8a77970_cpg_mssr_info __initconst = { + /* Core Clocks */ + .core_clks = r8a77970_core_clks, + .num_core_clks = ARRAY_SIZE(r8a77970_core_clks), + .last_dt_core_clk = LAST_DT_CORE_CLK, + .num_total_core_clks = MOD_CLK_BASE, + + /* Module Clocks */ + .mod_clks = r8a77970_mod_clks, + .num_mod_clks = ARRAY_SIZE(r8a77970_mod_clks), + .num_hw_mod_clks = 12 * 32, + + /* Critical Module Clocks */ + .crit_mod_clks = r8a77970_crit_mod_clks, + .num_crit_mod_clks = ARRAY_SIZE(r8a77970_crit_mod_clks), + + /* Callbacks */ + .init = r8a77970_cpg_mssr_init, + .cpg_clk_register = rcar_gen3_cpg_clk_register, +}; diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c index e580a5e6346c..1779b0cc7a2a 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.c +++ b/drivers/clk/renesas/renesas-cpg-mssr.c @@ -680,6 +680,12 @@ static const struct of_device_id cpg_mssr_match[] = { .data = &r8a7796_cpg_mssr_info, }, #endif +#ifdef CONFIG_CLK_R8A77970 + { + .compatible = "renesas,r8a77970-cpg-mssr", + .data = &r8a77970_cpg_mssr_info, + }, +#endif #ifdef CONFIG_CLK_R8A77995 { .compatible = "renesas,r8a77995-cpg-mssr", diff --git a/drivers/clk/renesas/renesas-cpg-mssr.h b/drivers/clk/renesas/renesas-cpg-mssr.h index 94b9071d1061..66528ce3eb37 100644 --- a/drivers/clk/renesas/renesas-cpg-mssr.h +++ b/drivers/clk/renesas/renesas-cpg-mssr.h @@ -138,6 +138,7 @@ extern const struct cpg_mssr_info r8a7792_cpg_mssr_info; extern const struct cpg_mssr_info r8a7794_cpg_mssr_info; extern const struct cpg_mssr_info r8a7795_cpg_mssr_info; extern const struct cpg_mssr_info r8a7796_cpg_mssr_info; +extern const struct cpg_mssr_info r8a77970_cpg_mssr_info; extern const struct cpg_mssr_info r8a77995_cpg_mssr_info; -- cgit v1.2.3 From 2f329595b8db42ceb3de93595a740ac7b24eddba Mon Sep 17 00:00:00 2001 From: Baolin Wang Date: Fri, 15 Sep 2017 15:29:15 +0800 Subject: spi: Add Spreadtrum ADI controller documentation This patch adds the binding documentation for Spreadtrum ADI controller device. Signed-off-by: Baolin Wang Signed-off-by: Mark Brown --- .../devicetree/bindings/spi/spi-sprd-adi.txt | 58 ++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-sprd-adi.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/spi/spi-sprd-adi.txt b/Documentation/devicetree/bindings/spi/spi-sprd-adi.txt new file mode 100644 index 000000000000..8de589b376ce --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-sprd-adi.txt @@ -0,0 +1,58 @@ +Spreadtrum ADI controller + +ADI is the abbreviation of Anolog-Digital interface, which is used to access +analog chip (such as PMIC) from digital chip. ADI controller follows the SPI +framework for its hardware implementation is alike to SPI bus and its timing +is compatile to SPI timing. + +ADI controller has 50 channels including 2 software read/write channels and +48 hardware channels to access analog chip. For 2 software read/write channels, +users should set ADI registers to access analog chip. For hardware channels, +we can configure them to allow other hardware components to use it independently, +which means we can just link one analog chip address to one hardware channel, +then users can access the mapped analog chip address by this hardware channel +triggered by hardware components instead of ADI software channels. + +Thus we introduce one property named "sprd,hw-channels" to configure hardware +channels, the first value specifies the hardware channel id which is used to +transfer data triggered by hardware automatically, and the second value specifies +the analog chip address where user want to access by hardware components. + +Since we have multi-subsystems will use unique ADI to access analog chip, when +one system is reading/writing data by ADI software channels, that should be under +one hardware spinlock protection to prevent other systems from reading/writing +data by ADI software channels at the same time, or two parallel routine of setting +ADI registers will make ADI controller registers chaos to lead incorrect results. +Then we need one hardware spinlock to synchronize between the multiple subsystems. + +Required properties: +- compatible: Should be "sprd,sc9860-adi". +- reg: Offset and length of ADI-SPI controller register space. +- hwlocks: Reference to a phandle of a hwlock provider node. +- hwlock-names: Reference to hwlock name strings defined in the same order + as the hwlocks, should be "adi". +- #address-cells: Number of cells required to define a chip select address + on the ADI-SPI bus. Should be set to 1. +- #size-cells: Size of cells required to define a chip select address size + on the ADI-SPI bus. Should be set to 0. + +Optional properties: +- sprd,hw-channels: This is an array of channel values up to 49 channels. + The first value specifies the hardware channel id which is used to + transfer data triggered by hardware automatically, and the second + value specifies the analog chip address where user want to access + by hardware components. + +SPI slave nodes must be children of the SPI controller node and can contain +properties described in Documentation/devicetree/bindings/spi/spi-bus.txt. + +Example: + adi_bus: spi@40030000 { + compatible = "sprd,sc9860-adi"; + reg = <0 0x40030000 0 0x10000>; + hwlocks = <&hwlock1 0>; + hwlock-names = "adi"; + #address-cells = <1>; + #size-cells = <0>; + sprd,hw-channels = <30 0x8c20>; + }; -- cgit v1.2.3 From 457c25efc592bb5539e18161c505f7a865013fb7 Mon Sep 17 00:00:00 2001 From: Oder Chiou Date: Mon, 18 Sep 2017 18:14:26 +0800 Subject: ASoC: rt5663: Add the function of impedance sensing Support the function of impedance sensing. It could be set the matrix row number of the impedance sensing table and the related parameters in the DTS. Signed-off-by: Oder Chiou Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/rt5663.txt | 16 ++ include/sound/rt5663.h | 3 + sound/soc/codecs/rt5663.c | 218 ++++++++++++++++++++- 3 files changed, 233 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/rt5663.txt b/Documentation/devicetree/bindings/sound/rt5663.txt index ff381718c517..497bcfc58b71 100644 --- a/Documentation/devicetree/bindings/sound/rt5663.txt +++ b/Documentation/devicetree/bindings/sound/rt5663.txt @@ -19,6 +19,22 @@ Optional properties: Based on the different PCB layout, add the manual offset value to compensate the DC offset for each L and R channel, and they are different between headphone and headset. +- "realtek,impedance_sensing_num" + The matrix row number of the impedance sensing table. + If the value is 0, it means the impedance sensing is not supported. +- "realtek,impedance_sensing_table" + The matrix rows of the impedance sensing table are consisted by impedance + minimum, impedance maximun, volume, DC offset w/o and w/ mic of each L and + R channel accordingly. Example is shown as following. + < 0 300 7 0xffd160 0xffd1c0 0xff8a10 0xff8ab0 + 301 65535 4 0xffe470 0xffe470 0xffb8e0 0xffb8e0> + The first and second column are defined for the impedance range. If the + detected impedance value is in the range, then the volume value of the + third column will be set to codec. In our codec design, each volume value + should compensate different DC offset to avoid the pop sound, and it is + also different between headphone and headset. In the example, the + "realtek,impedance_sensing_num" is 2. It means that there are 2 ranges of + impedance in the impedance sensing function. Pins on the device (for linking into audio routes) for RT5663: diff --git a/include/sound/rt5663.h b/include/sound/rt5663.h index 7d00e5849706..7b90a8f1034c 100644 --- a/include/sound/rt5663.h +++ b/include/sound/rt5663.h @@ -16,6 +16,9 @@ struct rt5663_platform_data { unsigned int dc_offset_r_manual; unsigned int dc_offset_l_manual_mic; unsigned int dc_offset_r_manual_mic; + + unsigned int impedance_sensing_num; + unsigned int *impedance_sensing_table; }; #endif diff --git a/sound/soc/codecs/rt5663.c b/sound/soc/codecs/rt5663.c index ab9e0ebff5a7..767f219f6c42 100644 --- a/sound/soc/codecs/rt5663.c +++ b/sound/soc/codecs/rt5663.c @@ -38,6 +38,16 @@ enum { CODEC_VER_0, }; +struct impedance_mapping_table { + unsigned int imp_min; + unsigned int imp_max; + unsigned int vol; + unsigned int dc_offset_l_manual; + unsigned int dc_offset_r_manual; + unsigned int dc_offset_l_manual_mic; + unsigned int dc_offset_r_manual_mic; +}; + struct rt5663_priv { struct snd_soc_codec *codec; struct rt5663_platform_data pdata; @@ -45,6 +55,7 @@ struct rt5663_priv { struct delayed_work jack_detect_work; struct snd_soc_jack *hs_jack; struct timer_list btn_check_timer; + struct impedance_mapping_table *imp_table; int codec_ver; int sysclk; @@ -1575,6 +1586,9 @@ static int rt5663_jack_detect(struct snd_soc_codec *codec, int jack_insert) rt5663->jack_type = SND_JACK_HEADSET; rt5663_enable_push_button_irq(codec, true); + if (rt5663->pdata.impedance_sensing_num) + break; + if (rt5663->pdata.dc_offset_l_manual_mic) { regmap_write(rt5663->regmap, RT5663_MIC_DECRO_2, rt5663->pdata.dc_offset_l_manual_mic >> @@ -1596,6 +1610,9 @@ static int rt5663_jack_detect(struct snd_soc_codec *codec, int jack_insert) default: rt5663->jack_type = SND_JACK_HEADPHONE; + if (rt5663->pdata.impedance_sensing_num) + break; + if (rt5663->pdata.dc_offset_l_manual) { regmap_write(rt5663->regmap, RT5663_MIC_DECRO_2, rt5663->pdata.dc_offset_l_manual >> 16); @@ -1623,6 +1640,177 @@ static int rt5663_jack_detect(struct snd_soc_codec *codec, int jack_insert) return rt5663->jack_type; } +static int rt5663_impedance_sensing(struct snd_soc_codec *codec) +{ + struct rt5663_priv *rt5663 = snd_soc_codec_get_drvdata(codec); + unsigned int value, i, reg84, reg26, reg2fa, reg91, reg10, reg80; + + for (i = 0; i < rt5663->pdata.impedance_sensing_num; i++) { + if (rt5663->imp_table[i].vol == 7) + break; + } + + if (rt5663->jack_type == SND_JACK_HEADSET) { + snd_soc_write(codec, RT5663_MIC_DECRO_2, + rt5663->imp_table[i].dc_offset_l_manual_mic >> 16); + snd_soc_write(codec, RT5663_MIC_DECRO_3, + rt5663->imp_table[i].dc_offset_l_manual_mic & 0xffff); + snd_soc_write(codec, RT5663_MIC_DECRO_5, + rt5663->imp_table[i].dc_offset_r_manual_mic >> 16); + snd_soc_write(codec, RT5663_MIC_DECRO_6, + rt5663->imp_table[i].dc_offset_r_manual_mic & 0xffff); + } else { + snd_soc_write(codec, RT5663_MIC_DECRO_2, + rt5663->imp_table[i].dc_offset_l_manual >> 16); + snd_soc_write(codec, RT5663_MIC_DECRO_3, + rt5663->imp_table[i].dc_offset_l_manual & 0xffff); + snd_soc_write(codec, RT5663_MIC_DECRO_5, + rt5663->imp_table[i].dc_offset_r_manual >> 16); + snd_soc_write(codec, RT5663_MIC_DECRO_6, + rt5663->imp_table[i].dc_offset_r_manual & 0xffff); + } + + reg84 = snd_soc_read(codec, RT5663_ASRC_2); + reg26 = snd_soc_read(codec, RT5663_STO1_ADC_MIXER); + reg2fa = snd_soc_read(codec, RT5663_DUMMY_1); + reg91 = snd_soc_read(codec, RT5663_HP_CHARGE_PUMP_1); + reg10 = snd_soc_read(codec, RT5663_RECMIX); + reg80 = snd_soc_read(codec, RT5663_GLB_CLK); + + snd_soc_update_bits(codec, RT5663_STO_DRE_1, 0x8000, 0); + snd_soc_write(codec, RT5663_ASRC_2, 0); + snd_soc_write(codec, RT5663_STO1_ADC_MIXER, 0x4040); + snd_soc_update_bits(codec, RT5663_PWR_ANLG_1, + RT5663_PWR_VREF1_MASK | RT5663_PWR_VREF2_MASK | + RT5663_PWR_FV1_MASK | RT5663_PWR_FV2_MASK, + RT5663_PWR_VREF1 | RT5663_PWR_VREF2); + usleep_range(10000, 10005); + snd_soc_update_bits(codec, RT5663_PWR_ANLG_1, + RT5663_PWR_FV1_MASK | RT5663_PWR_FV2_MASK, + RT5663_PWR_FV1 | RT5663_PWR_FV2); + snd_soc_update_bits(codec, RT5663_GLB_CLK, RT5663_SCLK_SRC_MASK, + RT5663_SCLK_SRC_RCCLK); + snd_soc_update_bits(codec, RT5663_RC_CLK, RT5663_DIG_25M_CLK_MASK, + RT5663_DIG_25M_CLK_EN); + snd_soc_update_bits(codec, RT5663_ADDA_CLK_1, RT5663_I2S_PD1_MASK, 0); + snd_soc_write(codec, RT5663_PRE_DIV_GATING_1, 0xff00); + snd_soc_write(codec, RT5663_PRE_DIV_GATING_2, 0xfffc); + snd_soc_write(codec, RT5663_HP_CHARGE_PUMP_1, 0x1232); + snd_soc_write(codec, RT5663_HP_LOGIC_2, 0x0005); + snd_soc_write(codec, RT5663_DEPOP_2, 0x3003); + snd_soc_update_bits(codec, RT5663_DEPOP_1, 0x0030, 0x0030); + snd_soc_update_bits(codec, RT5663_DEPOP_1, 0x0003, 0x0003); + snd_soc_update_bits(codec, RT5663_PWR_DIG_2, + RT5663_PWR_ADC_S1F | RT5663_PWR_DAC_S1F, + RT5663_PWR_ADC_S1F | RT5663_PWR_DAC_S1F); + snd_soc_update_bits(codec, RT5663_PWR_DIG_1, + RT5663_PWR_DAC_L1 | RT5663_PWR_DAC_R1 | + RT5663_PWR_LDO_DACREF_MASK | RT5663_PWR_ADC_L1 | + RT5663_PWR_ADC_R1, + RT5663_PWR_DAC_L1 | RT5663_PWR_DAC_R1 | + RT5663_PWR_LDO_DACREF_ON | RT5663_PWR_ADC_L1 | + RT5663_PWR_ADC_R1); + msleep(40); + snd_soc_update_bits(codec, RT5663_PWR_ANLG_2, + RT5663_PWR_RECMIX1 | RT5663_PWR_RECMIX2, + RT5663_PWR_RECMIX1 | RT5663_PWR_RECMIX2); + msleep(30); + snd_soc_write(codec, RT5663_HP_CHARGE_PUMP_2, 0x1371); + snd_soc_write(codec, RT5663_STO_DAC_MIXER, 0); + snd_soc_write(codec, RT5663_BYPASS_STO_DAC, 0x000c); + snd_soc_write(codec, RT5663_HP_BIAS, 0xafaa); + snd_soc_write(codec, RT5663_CHARGE_PUMP_1, 0x2224); + snd_soc_write(codec, RT5663_HP_OUT_EN, 0x8088); + snd_soc_write(codec, RT5663_CHOP_ADC, 0x3000); + snd_soc_write(codec, RT5663_ADDA_RST, 0xc000); + snd_soc_write(codec, RT5663_STO1_HPF_ADJ1, 0x3320); + snd_soc_write(codec, RT5663_HP_CALIB_2, 0x00c9); + snd_soc_write(codec, RT5663_DUMMY_1, 0x004c); + snd_soc_write(codec, RT5663_ANA_BIAS_CUR_1, 0x7733); + snd_soc_write(codec, RT5663_CHARGE_PUMP_2, 0x7777); + snd_soc_write(codec, RT5663_STO_DRE_9, 0x0007); + snd_soc_write(codec, RT5663_STO_DRE_10, 0x0007); + snd_soc_write(codec, RT5663_DUMMY_2, 0x02a4); + snd_soc_write(codec, RT5663_RECMIX, 0x0005); + snd_soc_write(codec, RT5663_HP_IMP_SEN_1, 0x4334); + snd_soc_update_bits(codec, RT5663_IRQ_3, 0x0004, 0x0004); + snd_soc_write(codec, RT5663_HP_LOGIC_1, 0x2200); + snd_soc_update_bits(codec, RT5663_DEPOP_1, 0x3000, 0x3000); + snd_soc_write(codec, RT5663_HP_LOGIC_1, 0x6200); + + for (i = 0; i < 100; i++) { + msleep(20); + if (snd_soc_read(codec, RT5663_INT_ST_1) & 0x2) + break; + } + + value = snd_soc_read(codec, RT5663_HP_IMP_SEN_4); + + snd_soc_update_bits(codec, RT5663_DEPOP_1, 0x3000, 0); + snd_soc_write(codec, RT5663_INT_ST_1, 0); + snd_soc_write(codec, RT5663_HP_LOGIC_1, 0); + snd_soc_update_bits(codec, RT5663_RC_CLK, RT5663_DIG_25M_CLK_MASK, + RT5663_DIG_25M_CLK_DIS); + snd_soc_write(codec, RT5663_GLB_CLK, reg80); + snd_soc_write(codec, RT5663_RECMIX, reg10); + snd_soc_write(codec, RT5663_DUMMY_2, 0x00a4); + snd_soc_write(codec, RT5663_DUMMY_1, reg2fa); + snd_soc_write(codec, RT5663_HP_CALIB_2, 0x00c8); + snd_soc_write(codec, RT5663_STO1_HPF_ADJ1, 0xb320); + snd_soc_write(codec, RT5663_ADDA_RST, 0xe400); + snd_soc_write(codec, RT5663_CHOP_ADC, 0x2000); + snd_soc_write(codec, RT5663_HP_OUT_EN, 0x0008); + snd_soc_update_bits(codec, RT5663_PWR_ANLG_2, + RT5663_PWR_RECMIX1 | RT5663_PWR_RECMIX2, 0); + snd_soc_update_bits(codec, RT5663_PWR_DIG_1, + RT5663_PWR_DAC_L1 | RT5663_PWR_DAC_R1 | + RT5663_PWR_LDO_DACREF_MASK | RT5663_PWR_ADC_L1 | + RT5663_PWR_ADC_R1, 0); + snd_soc_update_bits(codec, RT5663_PWR_DIG_2, + RT5663_PWR_ADC_S1F | RT5663_PWR_DAC_S1F, 0); + snd_soc_update_bits(codec, RT5663_DEPOP_1, 0x0003, 0); + snd_soc_update_bits(codec, RT5663_DEPOP_1, 0x0030, 0); + snd_soc_write(codec, RT5663_HP_LOGIC_2, 0); + snd_soc_write(codec, RT5663_HP_CHARGE_PUMP_1, reg91); + snd_soc_update_bits(codec, RT5663_PWR_ANLG_1, + RT5663_PWR_VREF1_MASK | RT5663_PWR_VREF2_MASK, 0); + snd_soc_write(codec, RT5663_STO1_ADC_MIXER, reg26); + snd_soc_write(codec, RT5663_ASRC_2, reg84); + + for (i = 0; i < rt5663->pdata.impedance_sensing_num; i++) { + if (value >= rt5663->imp_table[i].imp_min && + value <= rt5663->imp_table[i].imp_max) + break; + } + + snd_soc_update_bits(codec, RT5663_STO_DRE_9, RT5663_DRE_GAIN_HP_MASK, + rt5663->imp_table[i].vol); + snd_soc_update_bits(codec, RT5663_STO_DRE_10, RT5663_DRE_GAIN_HP_MASK, + rt5663->imp_table[i].vol); + + if (rt5663->jack_type == SND_JACK_HEADSET) { + snd_soc_write(codec, RT5663_MIC_DECRO_2, + rt5663->imp_table[i].dc_offset_l_manual_mic >> 16); + snd_soc_write(codec, RT5663_MIC_DECRO_3, + rt5663->imp_table[i].dc_offset_l_manual_mic & 0xffff); + snd_soc_write(codec, RT5663_MIC_DECRO_5, + rt5663->imp_table[i].dc_offset_r_manual_mic >> 16); + snd_soc_write(codec, RT5663_MIC_DECRO_6, + rt5663->imp_table[i].dc_offset_r_manual_mic & 0xffff); + } else { + snd_soc_write(codec, RT5663_MIC_DECRO_2, + rt5663->imp_table[i].dc_offset_l_manual >> 16); + snd_soc_write(codec, RT5663_MIC_DECRO_3, + rt5663->imp_table[i].dc_offset_l_manual & 0xffff); + snd_soc_write(codec, RT5663_MIC_DECRO_5, + rt5663->imp_table[i].dc_offset_r_manual >> 16); + snd_soc_write(codec, RT5663_MIC_DECRO_6, + rt5663->imp_table[i].dc_offset_r_manual & 0xffff); + } + + return 0; +} + static int rt5663_button_detect(struct snd_soc_codec *codec) { int btn_type, val; @@ -1701,6 +1889,8 @@ static void rt5663_jack_detect_work(struct work_struct *work) break; case CODEC_VER_0: report = rt5663_jack_detect(rt5663->codec, 1); + if (rt5663->pdata.impedance_sensing_num) + rt5663_impedance_sensing(rt5663->codec); break; default: dev_err(codec->dev, "Unknown CODEC Version\n"); @@ -1796,10 +1986,6 @@ static const struct snd_kcontrol_new rt5663_v2_specific_controls[] = { }; static const struct snd_kcontrol_new rt5663_specific_controls[] = { - /* Headphone Output Volume */ - SOC_DOUBLE_R_TLV("Headphone Playback Volume", RT5663_STO_DRE_9, - RT5663_STO_DRE_10, RT5663_DRE_GAIN_HP_SHIFT, 23, 1, - rt5663_hp_vol_tlv), /* Mic Boost Volume*/ SOC_SINGLE_TLV("IN1 Capture Volume", RT5663_CBJ_2, RT5663_GAIN_BST1_SHIFT, 8, 0, in_bst_tlv), @@ -1807,6 +1993,13 @@ static const struct snd_kcontrol_new rt5663_specific_controls[] = { SOC_ENUM("IF1 ADC Data Swap", rt5663_if1_adc_enum), }; +static const struct snd_kcontrol_new rt5663_hpvol_controls[] = { + /* Headphone Output Volume */ + SOC_DOUBLE_R_TLV("Headphone Playback Volume", RT5663_STO_DRE_9, + RT5663_STO_DRE_10, RT5663_DRE_GAIN_HP_SHIFT, 23, 1, + rt5663_hp_vol_tlv), +}; + static int rt5663_is_sys_clk_from_pll(struct snd_soc_dapm_widget *w, struct snd_soc_dapm_widget *sink) { @@ -2889,6 +3082,10 @@ static int rt5663_probe(struct snd_soc_codec *codec) ARRAY_SIZE(rt5663_specific_dapm_routes)); snd_soc_add_codec_controls(codec, rt5663_specific_controls, ARRAY_SIZE(rt5663_specific_controls)); + + if (!rt5663->imp_table) + snd_soc_add_codec_controls(codec, rt5663_hpvol_controls, + ARRAY_SIZE(rt5663_hpvol_controls)); break; } @@ -3177,6 +3374,8 @@ static void rt5663_calibrate(struct rt5663_priv *rt5663) static int rt5663_parse_dp(struct rt5663_priv *rt5663, struct device *dev) { + int table_size; + device_property_read_u32(dev, "realtek,dc_offset_l_manual", &rt5663->pdata.dc_offset_l_manual); device_property_read_u32(dev, "realtek,dc_offset_r_manual", @@ -3185,6 +3384,17 @@ static int rt5663_parse_dp(struct rt5663_priv *rt5663, struct device *dev) &rt5663->pdata.dc_offset_l_manual_mic); device_property_read_u32(dev, "realtek,dc_offset_r_manual_mic", &rt5663->pdata.dc_offset_r_manual_mic); + device_property_read_u32(dev, "realtek,impedance_sensing_num", + &rt5663->pdata.impedance_sensing_num); + + if (rt5663->pdata.impedance_sensing_num) { + table_size = sizeof(struct impedance_mapping_table) * + rt5663->pdata.impedance_sensing_num; + rt5663->imp_table = devm_kzalloc(dev, table_size, GFP_KERNEL); + device_property_read_u32_array(dev, + "realtek,impedance_sensing_table", + (u32 *)rt5663->imp_table, table_size); + } return 0; } -- cgit v1.2.3 From d6604145dfccc3dd9e882dd3d6bd2545c9ff64e9 Mon Sep 17 00:00:00 2001 From: Jeffy Chen Date: Mon, 18 Sep 2017 19:14:34 +0800 Subject: ASoC: rt5514: Add devicetree binding support for rt5514-spi Add devicetree binding support for rt5514 spi dsp codec. Signed-off-by: Jeffy Chen Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/rt5514.txt | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/rt5514.txt b/Documentation/devicetree/bindings/sound/rt5514.txt index 929ca6756b02..4f33b0d96afe 100644 --- a/Documentation/devicetree/bindings/sound/rt5514.txt +++ b/Documentation/devicetree/bindings/sound/rt5514.txt @@ -1,22 +1,27 @@ RT5514 audio CODEC -This device supports I2C only. +This device supports both I2C and SPI. Required properties: - compatible : "realtek,rt5514". -- reg : The I2C address of the device. +- reg : the I2C address of the device for I2C, the chip select + number for SPI. Optional properties: - clocks: The phandle of the master clock to the CODEC - clock-names: Should be "mclk" +- interrupt-parent: The phandle for the interrupt controller. +- interrupts: The interrupt number to the cpu. The interrupt specifier format + depends on the interrupt controller. + - realtek,dmic-init-delay-ms - Set the DMIC initial delay (ms) to wait it ready. + Set the DMIC initial delay (ms) to wait it ready for I2C. -Pins on the device (for linking into audio routes) for RT5514: +Pins on the device (for linking into audio routes) for I2C: * DMIC1L * DMIC1R -- cgit v1.2.3 From 32c30f73687a7ea5fe6add62b7bc3b520115d0d9 Mon Sep 17 00:00:00 2001 From: Franklin Cooper Date: Fri, 8 Sep 2017 15:46:36 -0500 Subject: spi: spi-davinci: Update binding for 66AK2Gx pwr dm property Add pm-domains property which is required for 66AK2Gx. Also document 66AK2G unique clocks property usage. Signed-off-by: Franklin S Cooper Jr Acked-by: Rob Herring Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/spi/spi-davinci.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/spi/spi-davinci.txt b/Documentation/devicetree/bindings/spi/spi-davinci.txt index f5916c92fe91..1925277bfc1e 100644 --- a/Documentation/devicetree/bindings/spi/spi-davinci.txt +++ b/Documentation/devicetree/bindings/spi/spi-davinci.txt @@ -24,6 +24,16 @@ Required properties: based on a specific SoC configuration. - interrupts: interrupt number mapped to CPU. - clocks: spi clk phandle + For 66AK2G this property should be set per binding, + Documentation/devicetree/bindings/clock/ti,sci-clk.txt + +SoC-specific Required Properties: + +The following are mandatory properties for Keystone 2 66AK2G SoCs only: + +- power-domains: Should contain a phandle to a PM domain provider node + and an args specifier containing the SPI device id + value. This property is as per the binding, Optional: - cs-gpios: gpio chip selects -- cgit v1.2.3 From 10c1705eced11d6ad710fddcdb57aaa9f85a6f98 Mon Sep 17 00:00:00 2001 From: Fabrizio Castro Date: Fri, 8 Sep 2017 09:07:15 +0100 Subject: spi: rspi: Add r8a7743/5 to the compatible list Signed-off-by: Fabrizio Castro Reviewed-by: Geert Uytterhoeven Acked-by: Rob Herring Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/spi/spi-rspi.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/spi/spi-rspi.txt b/Documentation/devicetree/bindings/spi/spi-rspi.txt index 8f4169f63936..3b02b3a7cfb2 100644 --- a/Documentation/devicetree/bindings/spi/spi-rspi.txt +++ b/Documentation/devicetree/bindings/spi/spi-rspi.txt @@ -5,11 +5,14 @@ Required properties: "renesas,rspi-", "renesas,rspi" as fallback. For Renesas Serial Peripheral Interface on RZ/A1H: "renesas,rspi-", "renesas,rspi-rz" as fallback. - For Quad Serial Peripheral Interface on R-Car Gen2: + For Quad Serial Peripheral Interface on R-Car Gen2 and + RZ/G1 devices: "renesas,qspi-", "renesas,qspi" as fallback. Examples with soctypes are: - "renesas,rspi-sh7757" (SH) - "renesas,rspi-r7s72100" (RZ/A1H) + - "renesas,qspi-r8a7743" (RZ/G1M) + - "renesas,qspi-r8a7745" (RZ/G1E) - "renesas,qspi-r8a7790" (R-Car H2) - "renesas,qspi-r8a7791" (R-Car M2-W) - "renesas,qspi-r8a7792" (R-Car V2H) -- cgit v1.2.3 From c737abc193d16e62e23e2fb585b8b7398ab380d8 Mon Sep 17 00:00:00 2001 From: allen yan Date: Thu, 7 Sep 2017 15:04:53 +0200 Subject: arm64: dts: marvell: Fix A37xx UART0 register size Armada-37xx UART0 registers are 0x200 bytes wide. Right next to them are the UART1 registers that should not be declared in this node. Update the example in DT bindings document accordingly. Signed-off-by: allen yan Signed-off-by: Miquel Raynal Signed-off-by: Gregory CLEMENT --- Documentation/devicetree/bindings/serial/mvebu-uart.txt | 2 +- arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/serial/mvebu-uart.txt b/Documentation/devicetree/bindings/serial/mvebu-uart.txt index 6087defd9f93..d37fabe17bd1 100644 --- a/Documentation/devicetree/bindings/serial/mvebu-uart.txt +++ b/Documentation/devicetree/bindings/serial/mvebu-uart.txt @@ -8,6 +8,6 @@ Required properties: Example: serial@12000 { compatible = "marvell,armada-3700-uart"; - reg = <0x12000 0x400>; + reg = <0x12000 0x200>; interrupts = <43>; }; diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi index 8c0cf7efac65..b554cdaf5e53 100644 --- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi +++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi @@ -134,7 +134,7 @@ uart0: serial@12000 { compatible = "marvell,armada-3700-uart"; - reg = <0x12000 0x400>; + reg = <0x12000 0x200>; interrupts = ; status = "disabled"; }; -- cgit v1.2.3 From 9fda3b428a74339e358d4b0850427fa1ce1b4714 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Mon, 4 Sep 2017 16:41:50 +0100 Subject: ASoC: arizona: Add audio device tree bindings In keeping with the style of the rest of this drivers device tree bindings split the audio device tree bindings into their own document. It should be noted this patch makes no change to the binding itself just moves the documentation into a specific file for the audio binding. For easy of merging a separate patch removes the current documentation from the MFD binding documentation. Signed-off-by: Charles Keepax Acked-by: Rob Herring Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/wlf,arizona.txt | 49 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/wlf,arizona.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/wlf,arizona.txt b/Documentation/devicetree/bindings/sound/wlf,arizona.txt new file mode 100644 index 000000000000..4e67224488d8 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/wlf,arizona.txt @@ -0,0 +1,49 @@ +Cirrus Logic Arizona class audio SoCs + +These devices are audio SoCs with extensive digital capabilities and a range +of analogue I/O. + +This document lists sound specific bindings, see the primary binding +document: + ../mfd/arizona.txt + +Optional properties: + + - wlf,inmode : A list of INn_MODE register values, where n is the number + of input signals. Valid values are 0 (Differential), 1 (Single-ended) and + 2 (Digital Microphone). If absent, INn_MODE registers set to 0 by default. + If present, values must be specified less than or equal to the number of + input signals. If values less than the number of input signals, elements + that have not been specified are set to 0 by default. Entries are: + (wm5102, wm5110, wm8280, wm8997) + (wm8998, wm1814) + - wlf,out-mono : A list of boolean values indicating whether each output is + mono or stereo. Position within the list indicates the output affected + (eg. First entry in the list corresponds to output 1). A non-zero value + indicates a mono output. If present, the number of values should be less + than or equal to the number of outputs, if less values are supplied the + additional outputs will be treated as stereo. + + - wlf,dmic-ref : DMIC reference voltage source for each input, can be + selected from either MICVDD or one of the MICBIAS's, defines + (ARIZONA_DMIC_xxxx) are provided in . If + present, the number of values should be less than or equal to the + number of inputs, unspecified inputs will use the chip default. + + - wlf,max-channels-clocked : The maximum number of channels to be clocked on + each AIF, useful for I2S systems with multiple data lines being mastered. + Specify one cell for each AIF to be configured, specify zero for AIFs that + should be handled normally. + If present, number of cells must be less than or equal to the number of + AIFs. If less than the number of AIFs, for cells that have not been + specified the corresponding AIFs will be treated as default setting. + + - wlf,spk-fmt : PDM speaker data format, must contain 2 cells (OUT5 and OUT6). + See the datasheet for values. + The second cell is ignored for codecs that do not have OUT6 (wm5102, wm8997, + wm8998, wm1814) + + - wlf,spk-mute : PDM speaker mute setting, must contain 2 cells (OUT5 and OUT6). + See the datasheet for values. + The second cell is ignored for codecs that do not have OUT6 (wm5102, wm8997, + wm8998, wm1814) diff --git a/MAINTAINERS b/MAINTAINERS index 2281af4b41b6..5824962f419f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14575,6 +14575,7 @@ F: Documentation/devicetree/bindings/extcon/extcon-arizona.txt F: Documentation/devicetree/bindings/regulator/arizona-regulator.txt F: Documentation/devicetree/bindings/mfd/arizona.txt F: Documentation/devicetree/bindings/mfd/wm831x.txt +F: Documentation/devicetree/bindings/sound/wlf,arizona.txt F: arch/arm/mach-s3c64xx/mach-crag6410* F: drivers/clk/clk-wm83*.c F: drivers/extcon/extcon-arizona.c -- cgit v1.2.3 From 1d6a332ae8b7d8eacb9fe4c0a09370550f0b3eee Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 30 Aug 2017 08:19:39 -0700 Subject: ARM: dts: Add missing properties for omap4 control modules On omap4, we are missing several ti,hwmods properties and IO ranges for system control modules. These are needed by the SoC interconnect code. Note that this will only show up as a bug with "doesn't have mpu register target base" boot errors when the legacy platform data is removed. In order to add these, we need to move omap4_pmx_wkup to be a child of omap4_padconf_wkup. On omap4 there are separate modules for control module and control module pads. For control module core, we have this already configured except for the missing ti,hwmods and reg entries. Cc: Mark Rutland Acked-by: Rob Herring Signed-off-by: Tony Lindgren --- .../devicetree/bindings/arm/omap/ctrl.txt | 2 ++ arch/arm/boot/dts/omap4.dtsi | 39 ++++++++++++++++------ 2 files changed, 31 insertions(+), 10 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/omap/ctrl.txt b/Documentation/devicetree/bindings/arm/omap/ctrl.txt index 3a4e5901ce31..ce8dabf8c0f9 100644 --- a/Documentation/devicetree/bindings/arm/omap/ctrl.txt +++ b/Documentation/devicetree/bindings/arm/omap/ctrl.txt @@ -21,6 +21,8 @@ Required properties: "ti,omap3-scm" "ti,omap4-scm-core" "ti,omap4-scm-padconf-core" + "ti,omap4-scm-wkup" + "ti,omap4-scm-padconf-wkup" "ti,omap5-scm-core" "ti,omap5-scm-padconf-core" "ti,dra7-scm-core" diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi index 47bc41954e2e..16ec0bd29209 100644 --- a/arch/arm/boot/dts/omap4.dtsi +++ b/arch/arm/boot/dts/omap4.dtsi @@ -174,6 +174,7 @@ #address-cells = <1>; #size-cells = <1>; ranges = <0 0x2000 0x1000>; + ti,hwmods = "ctrl_module_core"; scm_conf: scm_conf@0 { compatible = "syscon"; @@ -186,9 +187,11 @@ omap4_padconf_core: scm@100000 { compatible = "ti,omap4-scm-padconf-core", "simple-bus"; + reg = <0x100000 0x1000>; #address-cells = <1>; #size-cells = <1>; ranges = <0 0x100000 0x1000>; + ti,hwmods = "ctrl_module_pad_core"; omap4_pmx_core: pinmux@40 { compatible = "ti,omap4-padconf", @@ -263,17 +266,33 @@ }; }; - omap4_pmx_wkup: pinmux@1e040 { - compatible = "ti,omap4-padconf", - "pinctrl-single"; - reg = <0x1e040 0x0038>; + omap4_scm_wkup: scm@c000 { + compatible = "ti,omap4-scm-wkup"; + reg = <0xc000 0x1000>; + ti,hwmods = "ctrl_module_wkup"; + }; + + omap4_padconf_wkup: padconf@1e000 { + compatible = "ti,omap4-scm-padconf-wkup", + "simple-bus"; + reg = <0x1e000 0x1000>; #address-cells = <1>; - #size-cells = <0>; - #pinctrl-cells = <1>; - #interrupt-cells = <1>; - interrupt-controller; - pinctrl-single,register-width = <16>; - pinctrl-single,function-mask = <0x7fff>; + #size-cells = <1>; + ranges = <0 0x1e000 0x1000>; + ti,hwmods = "ctrl_module_pad_wkup"; + + omap4_pmx_wkup: pinmux@40 { + compatible = "ti,omap4-padconf", + "pinctrl-single"; + reg = <0x40 0x0038>; + #address-cells = <1>; + #size-cells = <0>; + #pinctrl-cells = <1>; + #interrupt-cells = <1>; + interrupt-controller; + pinctrl-single,register-width = <16>; + pinctrl-single,function-mask = <0x7fff>; + }; }; }; }; -- cgit v1.2.3 From 514b2da46fcc10bd5f42446b9fa746ba2c80aaf1 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 30 Aug 2017 08:19:41 -0700 Subject: ARM: dts: Add missing smartreflex node and binding for omap4 We are missing smartreflex device tree nodes for omap4 with their related "ti,hwmods" properties that the SoC interconnect code needs. Note that this will only show up as a bug with "doesn't have mpu register target base" boot errors when the legacy platform data is removed. And since we're missing the device tree binding for smartreflex, let's also add it and document the existing omap3 use too. Note that the related driver also needs to be updated to probe using device tree and get the platform data passed to it using auxdata with arch/arm/mach-omap2/pdata-quirks.c. Cc: Mark Rutland Cc: Nishanth Menon Cc: Rafael J. Wysocki Cc: Tero Kristo Acked-by: Rob Herring Signed-off-by: Tony Lindgren --- .../devicetree/bindings/power/ti-smartreflex.txt | 47 ++++++++++++++++++++++ arch/arm/boot/dts/omap4.dtsi | 21 ++++++++++ 2 files changed, 68 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/ti-smartreflex.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/power/ti-smartreflex.txt b/Documentation/devicetree/bindings/power/ti-smartreflex.txt new file mode 100644 index 000000000000..9780957c9115 --- /dev/null +++ b/Documentation/devicetree/bindings/power/ti-smartreflex.txt @@ -0,0 +1,47 @@ +Texas Instruments SmartReflex binding + +SmartReflex is used to set and adjust the SoC operating points. + + +Required properties: + +compatible: Shall be one of the following: + "ti,omap3-smartreflex-core" + "ti,omap3-smartreflex-iva" + "ti,omap4-smartreflex-core" + "ti,omap4-smartreflex-mpu" + "ti,omap4-smartreflex-iva" + +reg: Shall contain the device instance IO range + +interrupts: Shall contain the device instance interrupt + + +Optional properties: + +ti,hwmods: Shall contain the TI interconnect module name if needed + by the SoC + + +Example: + + smartreflex_iva: smartreflex@4a0db000 { + compatible = "ti,omap4-smartreflex-iva"; + reg = <0x4a0db000 0x80>; + interrupts = ; + ti,hwmods = "smartreflex_iva"; + }; + + smartreflex_core: smartreflex@4a0dd000 { + compatible = "ti,omap4-smartreflex-core"; + reg = <0x4a0dd000 0x80>; + interrupts = ; + ti,hwmods = "smartreflex_core"; + }; + + smartreflex_mpu: smartreflex@4a0d9000 { + compatible = "ti,omap4-smartreflex-mpu"; + reg = <0x4a0d9000 0x80>; + interrupts = ; + ti,hwmods = "smartreflex_mpu"; + }; diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi index 24a3f70f1eef..c48b7e8713ca 100644 --- a/arch/arm/boot/dts/omap4.dtsi +++ b/arch/arm/boot/dts/omap4.dtsi @@ -442,6 +442,27 @@ clock-frequency = <48000000>; }; + smartreflex_iva: smartreflex@4a0db000 { + compatible = "ti,omap4-smartreflex-iva"; + reg = <0x4a0db000 0x80>; + interrupts = ; + ti,hwmods = "smartreflex_iva"; + }; + + smartreflex_core: smartreflex@4a0dd000 { + compatible = "ti,omap4-smartreflex-core"; + reg = <0x4a0dd000 0x80>; + interrupts = ; + ti,hwmods = "smartreflex_core"; + }; + + smartreflex_mpu: smartreflex@4a0d9000 { + compatible = "ti,omap4-smartreflex-mpu"; + reg = <0x4a0d9000 0x80>; + interrupts = ; + ti,hwmods = "smartreflex_mpu"; + }; + hwspinlock: spinlock@4a0f6000 { compatible = "ti,omap4-hwspinlock"; reg = <0x4a0f6000 0x1000>; -- cgit v1.2.3 From 0c37c56d63f4924134edd7e3af805291add56fac Mon Sep 17 00:00:00 2001 From: Vladimir Barinov Date: Thu, 14 Sep 2017 17:18:30 +0300 Subject: dt: Add vendor prefix 'shimafuji' Add Shimafuji Electric, Inc. to the list of device tree vendor prefixes Signed-off-by: Vladimir Barinov Acked-by: Geert Uytterhoeven Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index c6ef403e6321..9d46f99cc144 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -297,6 +297,7 @@ sensirion Sensirion AG sff Small Form Factor Committee sgx SGX Sensortech sharp Sharp Corporation +shimafuji Shimafuji Electric, Inc. si-en Si-En Technology Ltd. sigma Sigma Designs, Inc. sii Seiko Instruments, Inc. -- cgit v1.2.3 From 8be8576fcf2d90a8bc679bfb25a4121d0eebe0de Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 30 Aug 2017 13:25:20 -0700 Subject: ARM: dts: Add missing hsi node for omap4 On omap4 we're missing the hsi node with it's related "ti,hwmods" property that the SoC interconnect code needs. Note that this will only show up as a bug with "doesn't have mpu register target base" boot errors when the legacy platform data is removed. Let's also update the binding accrodingly while at it. Cc: Mark Rutland Cc: Rob Herring Reviewed-by: Sebastian Reichel Acked-by: Rob Herring Signed-off-by: Tony Lindgren --- Documentation/devicetree/bindings/hsi/omap-ssi.txt | 13 +++++++-- arch/arm/boot/dts/omap4.dtsi | 34 ++++++++++++++++++++++ 2 files changed, 44 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/hsi/omap-ssi.txt b/Documentation/devicetree/bindings/hsi/omap-ssi.txt index b8eca3c7810d..955e335e7e56 100644 --- a/Documentation/devicetree/bindings/hsi/omap-ssi.txt +++ b/Documentation/devicetree/bindings/hsi/omap-ssi.txt @@ -1,10 +1,12 @@ OMAP SSI controller bindings -OMAP Synchronous Serial Interface (SSI) controller implements a legacy -variant of MIPI's High Speed Synchronous Serial Interface (HSI). +OMAP3's Synchronous Serial Interface (SSI) controller implements a +legacy variant of MIPI's High Speed Synchronous Serial Interface (HSI), +while the controller found inside OMAP4 is supposed to be fully compliant +with the HSI standard. Required properties: -- compatible: Should include "ti,omap3-ssi". +- compatible: Should include "ti,omap3-ssi" or "ti,omap4-hsi" - reg-names: Contains the values "sys" and "gdd" (in this order). - reg: Contains a matching register specifier for each entry in reg-names. @@ -27,6 +29,7 @@ Each port is represented as a sub-node of the ti,omap3-ssi device. Required Port sub-node properties: - compatible: Should be set to the following value ti,omap3-ssi-port (applicable to OMAP34xx devices) + ti,omap4-hsi-port (applicable to OMAP44xx devices) - reg-names: Contains the values "tx" and "rx" (in this order). - reg: Contains a matching register specifier for each entry in reg-names. @@ -38,6 +41,10 @@ Required Port sub-node properties: property. If it's missing the port will not be enabled. +Optional properties: +- ti,hwmods: Shall contain TI interconnect module name if needed + by the SoC + Example for Nokia N900: ssi-controller@48058000 { diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi index 69d129b420e0..a3c4d3541e3d 100644 --- a/arch/arm/boot/dts/omap4.dtsi +++ b/arch/arm/boot/dts/omap4.dtsi @@ -624,6 +624,40 @@ dma-names = "tx", "rx"; }; + hsi: hsi@4a058000 { + compatible = "ti,omap4-hsi"; + reg = <0x4a058000 0x4000>, + <0x4a05c000 0x1000>; + reg-names = "sys", "gdd"; + ti,hwmods = "hsi"; + + clocks = <&hsi_fck>; + clock-names = "hsi_fck"; + + interrupts = ; + interrupt-names = "gdd_mpu"; + + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x4a058000 0x4000>; + + hsi_port1: hsi-port@2000 { + compatible = "ti,omap4-hsi-port"; + reg = <0x2000 0x800>, + <0x2800 0x800>; + reg-names = "tx", "rx"; + interrupts = ; + }; + + hsi_port2: hsi-port@3000 { + compatible = "ti,omap4-hsi-port"; + reg = <0x3000 0x800>, + <0x3800 0x800>; + reg-names = "tx", "rx"; + interrupts = ; + }; + }; + mmu_dsp: mmu@4a066000 { compatible = "ti,omap4-iommu"; reg = <0x4a066000 0x100>; -- cgit v1.2.3 From cd57dc5a2099a43c99fb39cb7c953246149db816 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 30 Aug 2017 08:19:52 -0700 Subject: ARM: dts: Add missing hwmod related nodes for am33xx On am33xx we're missing the pmu and emif nodes with their related "ti,hwmods" properties that the SoC interconnect code needs. Note that this will only show up as a bug with "doesn't have mpu register target base" boot errors when the legacy platform data is removed. Let's also update the related binding documentation while at it. Cc: Mark Rutland Acked-by: Rob Herring Signed-off-by: Tony Lindgren --- .../devicetree/bindings/memory-controllers/ti/emif.txt | 6 ++++-- arch/arm/boot/dts/am33xx.dtsi | 10 +++++++++- 2 files changed, 13 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt b/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt index 0db60470ebb6..fd823d6091b2 100644 --- a/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt +++ b/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt @@ -7,8 +7,10 @@ of the EMIF IP and memory parts attached to it. Required properties: - compatible : Should be of the form "ti,emif-" where - is the IP revision of the specific EMIF instance. - For am437x should be ti,emif-am4372. + is the IP revision of the specific EMIF instance. For newer controllers, + compatible should be one of the following: + "ti,emif-am3352" + "ti,emif-am4372" - phy-type : indicating the DDR phy type. Following are the allowed values diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 7d7ca054c557..08653552db71 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -128,9 +128,11 @@ }; }; - pmu { + pmu@4b000000 { compatible = "arm,cortex-a8-pmu"; interrupts = <3>; + reg = <0x4b000000 0x1000000>; + ti,hwmods = "debugss"; }; /* @@ -927,6 +929,12 @@ }; }; + emif: emif@4c000000 { + compatible = "ti,emif-am3352"; + reg = <0x4c000000 0x1000000>; + ti,hwmods = "emif"; + }; + gpmc: gpmc@50000000 { compatible = "ti,am3352-gpmc"; ti,hwmods = "gpmc"; -- cgit v1.2.3 From 4633f7a156bf41003b1527f88ddf843ce0bb7d68 Mon Sep 17 00:00:00 2001 From: Leonard Crestez Date: Fri, 14 Jul 2017 17:11:06 +0300 Subject: thermal: imx: Add nvmem-cells alternate binding for OCOTP access On newer imx SOCs accessing OCOTP directly is wrong because the ocotp clock needs to be enabled first. Add a binding for accessing the same values through the imx-ocotp nvmem driver using nvmem-cells. This is similar to other thermal drivers. The old binding is preserved for compatibility and because it still works fine on imx6qdl series chips. In theory this problem could be solved by adding a reference to the OCOTP clock instead but it is better to hide such details in a specific nvmem driver. Signed-off-by: Leonard Crestez Acked-by: Rob Herring Signed-off-by: Zhang Rui --- Documentation/devicetree/bindings/thermal/imx-thermal.txt | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/thermal/imx-thermal.txt b/Documentation/devicetree/bindings/thermal/imx-thermal.txt index 3c67bd50aa10..28be51afdb6a 100644 --- a/Documentation/devicetree/bindings/thermal/imx-thermal.txt +++ b/Documentation/devicetree/bindings/thermal/imx-thermal.txt @@ -7,10 +7,17 @@ Required properties: is higher than panic threshold, system will auto reboot by SRC module. - fsl,tempmon : phandle pointer to system controller that contains TEMPMON control registers, e.g. ANATOP on imx6q. +- nvmem-cells: A phandle to the calibration cells provided by ocotp. +- nvmem-cell-names: Should be "calib", "temp_grade". + +Deprecated properties: - fsl,tempmon-data : phandle pointer to fuse controller that contains TEMPMON calibration data, e.g. OCOTP on imx6q. The details about calibration data can be found in SoC Reference Manual. +Direct access to OCOTP via fsl,tempmon-data is incorrect on some newer chips +because it does not handle OCOTP clock requirements. + Optional properties: - clocks : thermal sensor's clock source. -- cgit v1.2.3 From 3d345b5f7b2f613b6965fc3fc68de9f439752ffe Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 19 Sep 2017 19:59:04 -0300 Subject: ASoC: tfa9879: Add device tree bindings MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Even though the tfa9879 driver can probe via device tree trough the I2C core code, it is preferable to have explicit device tree bindings instead [1], so add this support. [1] https://www.spinics.net/lists/devicetree/msg195176.html Signed-off-by: Fabio Estevam Reviewed-by: Łukasz Majewski Signed-off-by: Mark Brown --- .../devicetree/bindings/sound/tfa9879.txt | 23 ++++++++++++++++++++++ sound/soc/codecs/tfa9879.c | 6 ++++++ 2 files changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/tfa9879.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/tfa9879.txt b/Documentation/devicetree/bindings/sound/tfa9879.txt new file mode 100644 index 000000000000..23ba522d9e2b --- /dev/null +++ b/Documentation/devicetree/bindings/sound/tfa9879.txt @@ -0,0 +1,23 @@ +NXP TFA9879 class-D audio amplifier + +Required properties: + +- compatible : "nxp,tfa9879" + +- reg : the I2C address of the device + +Example: + +&i2c1 { + clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c1>; + status = "okay"; + + codec: tfa9879@6c { + #sound-dai-cells = <0>; + compatible = "nxp,tfa9879"; + reg = <0x6c>; + }; +}; + diff --git a/sound/soc/codecs/tfa9879.c b/sound/soc/codecs/tfa9879.c index 95e0a7abeb7a..f8dd67ca0744 100644 --- a/sound/soc/codecs/tfa9879.c +++ b/sound/soc/codecs/tfa9879.c @@ -312,9 +312,15 @@ static const struct i2c_device_id tfa9879_i2c_id[] = { }; MODULE_DEVICE_TABLE(i2c, tfa9879_i2c_id); +static const struct of_device_id tfa9879_of_match[] = { + { .compatible = "nxp,tfa9879", }, + { } +}; + static struct i2c_driver tfa9879_i2c_driver = { .driver = { .name = "tfa9879", + .of_match_table = tfa9879_of_match, }, .probe = tfa9879_i2c_probe, .remove = tfa9879_i2c_remove, -- cgit v1.2.3 From f9705438b0f7da5dd04e270a95536b36b3dca54a Mon Sep 17 00:00:00 2001 From: Martyn Welch Date: Fri, 18 Aug 2017 16:53:47 +0100 Subject: dt-bindings: misc: achc: Add device tree binding for GE ACHC Add Device Tree binding document for GE Healthcare USB Management Controller (ACHC). Signed-off-by: Martyn Welch Acked-by: Rob Herring Signed-off-by: Shawn Guo --- Documentation/devicetree/bindings/misc/ge-achc.txt | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/ge-achc.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/misc/ge-achc.txt b/Documentation/devicetree/bindings/misc/ge-achc.txt new file mode 100644 index 000000000000..77df94d7a32f --- /dev/null +++ b/Documentation/devicetree/bindings/misc/ge-achc.txt @@ -0,0 +1,26 @@ +* GE Healthcare USB Management Controller + +A device which handles data aquisition from compatible USB based peripherals. +SPI is used for device management. + +Note: This device does not expose the peripherals as USB devices. + +Required properties: + +- compatible : Should be "ge,achc" + +Required SPI properties: + +- reg : Should be address of the device chip select within + the controller. + +- spi-max-frequency : Maximum SPI clocking speed of device in Hz, should be + 1MHz for the GE ACHC. + +Example: + +spidev0: spi@0 { + compatible = "ge,achc"; + reg = <0>; + spi-max-frequency = <1000000>; +}; -- cgit v1.2.3 From ce6a90027c10f970f872de5db0294f9e3e969f1c Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Fri, 8 Sep 2017 10:23:11 -0500 Subject: platform/x86: Add driver to force WMI Thunderbolt controller power status Current implementations of Intel Thunderbolt controllers will go into a low power mode when not in use. Many machines containing these controllers also have a GPIO wired up that can force the controller awake. This is offered via a ACPI-WMI interface intended to be manipulated by a userspace utility. This mechanism is provided by Intel to OEMs to include in BIOS. It uses an industry wide GUID that is populated in a separate _WDG entry with no binary MOF. This interface allows software such as fwupd to wake up thunderbolt controllers to query the firmware version or flash new firmware. Signed-off-by: Mario Limonciello Reviewed-by: Mika Westerberg Reviewed-by: Yehezkel Bernat Signed-off-by: Darren Hart (VMware) [andy fixed merge conflicts and bump kernel version for ABI] Signed-off-by: Andy Shevchenko --- .../testing/sysfs-platform-intel-wmi-thunderbolt | 11 +++ Documentation/admin-guide/thunderbolt.rst | 15 +++ MAINTAINERS | 5 + drivers/platform/x86/Kconfig | 13 +++ drivers/platform/x86/Makefile | 1 + drivers/platform/x86/intel-wmi-thunderbolt.c | 101 +++++++++++++++++++++ 6 files changed, 146 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt create mode 100644 drivers/platform/x86/intel-wmi-thunderbolt.c (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt b/Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt new file mode 100644 index 000000000000..8af65059d519 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-intel-wmi-thunderbolt @@ -0,0 +1,11 @@ +What: /sys/devices/platform//force_power +Date: September 2017 +KernelVersion: 4.15 +Contact: "Mario Limonciello" +Description: + Modify the platform force power state, influencing + Thunderbolt controllers to turn on or off when no + devices are connected (write-only) + There are two available states: + * 0 -> Force power disabled + * 1 -> Force power enabled diff --git a/Documentation/admin-guide/thunderbolt.rst b/Documentation/admin-guide/thunderbolt.rst index 6a4cd1f159ca..dadcd66ee12f 100644 --- a/Documentation/admin-guide/thunderbolt.rst +++ b/Documentation/admin-guide/thunderbolt.rst @@ -197,3 +197,18 @@ information is missing. To recover from this mode, one needs to flash a valid NVM image to the host host controller in the same way it is done in the previous chapter. + +Forcing power +------------- +Many OEMs include a method that can be used to force the power of a +thunderbolt controller to an "On" state even if nothing is connected. +If supported by your machine this will be exposed by the WMI bus with +a sysfs attribute called "force_power". + +For example the intel-wmi-thunderbolt driver exposes this attribute in: + /sys/devices/platform/PNP0C14:00/wmi_bus/wmi_bus-PNP0C14:00/86CCFD48-205E-4A77-9C48-2021CBEDE341/force_power + + To force the power to on, write 1 to this attribute file. + To disable force power, write 0 to this attribute file. + +Note: it's currently not possible to query the force power state of a platform. diff --git a/MAINTAINERS b/MAINTAINERS index 2281af4b41b6..a6a5746ced9d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7092,6 +7092,11 @@ F: Documentation/wimax/README.i2400m F: drivers/net/wimax/i2400m/ F: include/uapi/linux/wimax/i2400m.h +INTEL WMI THUNDERBOLT FORCE POWER DRIVER +M: Mario Limonciello +S: Maintained +F: drivers/platform/x86/intel-wmi-thunderbolt.c + INTEL(R) TRACE HUB M: Alexander Shishkin S: Supported diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 80b87954f6dd..f401ae463e9b 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -658,6 +658,19 @@ config WMI_BMOF To compile this driver as a module, choose M here: the module will be called wmi-bmof. +config INTEL_WMI_THUNDERBOLT + tristate "Intel WMI thunderbolt force power driver" + depends on ACPI_WMI + default ACPI_WMI + ---help--- + Say Y here if you want to be able to use the WMI interface on select + systems to force the power control of Intel Thunderbolt controllers. + This is useful for updating the firmware when devices are not plugged + into the controller. + + To compile this driver as a module, choose M here: the module will + be called intel-wmi-thunderbolt. + config MSI_WMI tristate "MSI WMI extras" depends on ACPI_WMI diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile index 91cec1751461..2b315d0df3b7 100644 --- a/drivers/platform/x86/Makefile +++ b/drivers/platform/x86/Makefile @@ -39,6 +39,7 @@ obj-$(CONFIG_PEAQ_WMI) += peaq-wmi.o obj-$(CONFIG_SURFACE3_WMI) += surface3-wmi.o obj-$(CONFIG_TOPSTAR_LAPTOP) += topstar-laptop.o obj-$(CONFIG_WMI_BMOF) += wmi-bmof.o +obj-$(CONFIG_INTEL_WMI_THUNDERBOLT) += intel-wmi-thunderbolt.o # toshiba_acpi must link after wmi to ensure that wmi devices are found # before toshiba_acpi initializes diff --git a/drivers/platform/x86/intel-wmi-thunderbolt.c b/drivers/platform/x86/intel-wmi-thunderbolt.c new file mode 100644 index 000000000000..32fb6cc33d72 --- /dev/null +++ b/drivers/platform/x86/intel-wmi-thunderbolt.c @@ -0,0 +1,101 @@ +/* + * WMI Thunderbolt driver + * + * Copyright (C) 2017 Dell Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define INTEL_WMI_THUNDERBOLT_GUID "86CCFD48-205E-4A77-9C48-2021CBEDE341" + +static ssize_t force_power_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct acpi_buffer input; + acpi_status status; + u8 mode; + + input.length = sizeof(u8); + input.pointer = &mode; + mode = hex_to_bin(buf[0]); + if (mode == 0 || mode == 1) { + status = wmi_evaluate_method(INTEL_WMI_THUNDERBOLT_GUID, 0, 1, + &input, NULL); + if (ACPI_FAILURE(status)) { + pr_err("intel-wmi-thunderbolt: failed setting %s\n", + buf); + return -ENODEV; + } + } else { + pr_err("intel-wmi-thunderbolt: unsupported mode: %d", mode); + } + return count; +} + +static DEVICE_ATTR_WO(force_power); + +static struct attribute *tbt_attrs[] = { + &dev_attr_force_power.attr, + NULL +}; + +static const struct attribute_group tbt_attribute_group = { + .attrs = tbt_attrs, +}; + +static int intel_wmi_thunderbolt_probe(struct wmi_device *wdev) +{ + int ret; + + ret = sysfs_create_group(&wdev->dev.kobj, &tbt_attribute_group); + kobject_uevent(&wdev->dev.kobj, KOBJ_CHANGE); + return ret; +} + +static int intel_wmi_thunderbolt_remove(struct wmi_device *wdev) +{ + sysfs_remove_group(&wdev->dev.kobj, &tbt_attribute_group); + kobject_uevent(&wdev->dev.kobj, KOBJ_CHANGE); + return 0; +} + +static const struct wmi_device_id intel_wmi_thunderbolt_id_table[] = { + { .guid_string = INTEL_WMI_THUNDERBOLT_GUID }, + { }, +}; + +static struct wmi_driver intel_wmi_thunderbolt_driver = { + .driver = { + .name = "intel-wmi-thunderbolt", + }, + .probe = intel_wmi_thunderbolt_probe, + .remove = intel_wmi_thunderbolt_remove, + .id_table = intel_wmi_thunderbolt_id_table, +}; + +module_wmi_driver(intel_wmi_thunderbolt_driver); + +MODULE_ALIAS("wmi:" INTEL_WMI_THUNDERBOLT_GUID); +MODULE_AUTHOR("Mario Limonciello "); +MODULE_DESCRIPTION("Intel WMI Thunderbolt force power driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 8c5b3b328b3c43bc2453c5ffa9cfdaba68c0feba Mon Sep 17 00:00:00 2001 From: Yuan Yao Date: Wed, 30 Aug 2017 18:12:37 +0800 Subject: dt-bindings: spi: Add fsl,ls1012a-dspi compatible string new compatible string: "fsl,ls1012a-dspi". Signed-off-by: Yuan Yao Signed-off-by: Hou Zhiqiang Acked-by: Rob Herring Signed-off-by: Shawn Guo --- Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt index 13b1fcc8469e..dcc7eaada511 100644 --- a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt +++ b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt @@ -5,6 +5,7 @@ Required properties: "fsl,ls2085a-dspi" or "fsl,ls2080a-dspi" followed by "fsl,ls2085a-dspi" + "fsl,ls1012a-dspi" followed by "fsl,ls1021a-v1.0-dspi" - reg : Offset and length of the register set for the device - interrupts : Should contain SPI controller interrupt - clocks: from common clock binding: handle to dspi clock. -- cgit v1.2.3 From b07815d4eaf658b683c345d6e643895a20d92f29 Mon Sep 17 00:00:00 2001 From: Yuan Yao Date: Wed, 30 Aug 2017 18:12:38 +0800 Subject: dt-bindings: mtd: add sst25wf040b and en25s64 to sip-nor list The chip sst25wf040b and en25s64 are compatible with SPI NOR flash. Signed-off-by: Yuan Yao Signed-off-by: Hou Zhiqiang Acked-by: Rob Herring Signed-off-by: Shawn Guo --- Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt index 9ce35af8507c..4cab5d85cf6f 100644 --- a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt +++ b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt @@ -13,6 +13,7 @@ Required properties: at25df321a at25df641 at26df081a + en25s64 mr25h256 mr25h10 mr25h40 @@ -31,6 +32,7 @@ Required properties: s25fl008k s25fl064k sst25vf040b + sst25wf040b m25p40 m25p80 m25p16 -- cgit v1.2.3 From 601516a6f8cf9118a7c65ec38aa53896efc446bb Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Mon, 4 Sep 2017 16:41:52 +0100 Subject: mfd: arizona: Remove audio bindings from MFD binding document Now the audio bindings have their own binding document update the main MFD document to point to that file and remove the audio binding documentation. Signed-off-by: Charles Keepax Acked-by: Rob Herring Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/mfd/arizona.txt | 40 +---------------------- 1 file changed, 1 insertion(+), 39 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mfd/arizona.txt b/Documentation/devicetree/bindings/mfd/arizona.txt index b37bdde5cfda..bdd017686ea5 100644 --- a/Documentation/devicetree/bindings/mfd/arizona.txt +++ b/Documentation/devicetree/bindings/mfd/arizona.txt @@ -65,45 +65,6 @@ Optional properties: a value that is out of range for a 16 bit register then the chip default will be used. If present exactly five values must be specified. - - wlf,inmode : A list of INn_MODE register values, where n is the number - of input signals. Valid values are 0 (Differential), 1 (Single-ended) and - 2 (Digital Microphone). If absent, INn_MODE registers set to 0 by default. - If present, values must be specified less than or equal to the number of - input signals. If values less than the number of input signals, elements - that have not been specified are set to 0 by default. Entries are: - (wm5102, wm5110, wm8280, wm8997) - (wm8998, wm1814) - - wlf,out-mono : A list of boolean values indicating whether each output is - mono or stereo. Position within the list indicates the output affected - (eg. First entry in the list corresponds to output 1). A non-zero value - indicates a mono output. If present, the number of values should be less - than or equal to the number of outputs, if less values are supplied the - additional outputs will be treated as stereo. - - - wlf,dmic-ref : DMIC reference voltage source for each input, can be - selected from either MICVDD or one of the MICBIAS's, defines - (ARIZONA_DMIC_xxxx) are provided in . If - present, the number of values should be less than or equal to the - number of inputs, unspecified inputs will use the chip default. - - - wlf,max-channels-clocked : The maximum number of channels to be clocked on - each AIF, useful for I2S systems with multiple data lines being mastered. - Specify one cell for each AIF to be configured, specify zero for AIFs that - should be handled normally. - If present, number of cells must be less than or equal to the number of - AIFs. If less than the number of AIFs, for cells that have not been - specified the corresponding AIFs will be treated as default setting. - - - wlf,spk-fmt : PDM speaker data format, must contain 2 cells (OUT5 and OUT6). - See the datasheet for values. - The second cell is ignored for codecs that do not have OUT6 (wm5102, wm8997, - wm8998, wm1814) - - - wlf,spk-mute : PDM speaker mute setting, must contain 2 cells (OUT5 and OUT6). - See the datasheet for values. - The second cell is ignored for codecs that do not have OUT6 (wm5102, wm8997, - wm8998, wm1814) - - DCVDD-supply, MICVDD-supply : Power supplies, only need to be specified if they are being externally supplied. As covered in Documentation/devicetree/bindings/regulator/regulator.txt @@ -112,6 +73,7 @@ Optional properties: Also see child specific device properties: Regulator - ../regulator/arizona-regulator.txt Extcon - ../extcon/extcon-arizona.txt + Sound - ../sound/arizona.txt Example: -- cgit v1.2.3 From 0340afe74d43e9c82bc0f5904d8f5b99d0fc3ab0 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Mon, 4 Sep 2017 16:41:54 +0100 Subject: ASoC: arizona: Add device tree binding doc for volume limits Signed-off-by: Charles Keepax Acked-by: Rob Herring Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/wlf,arizona.txt | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/wlf,arizona.txt b/Documentation/devicetree/bindings/sound/wlf,arizona.txt index 4e67224488d8..e172c62dc2df 100644 --- a/Documentation/devicetree/bindings/sound/wlf,arizona.txt +++ b/Documentation/devicetree/bindings/sound/wlf,arizona.txt @@ -47,3 +47,7 @@ Optional properties: See the datasheet for values. The second cell is ignored for codecs that do not have OUT6 (wm5102, wm8997, wm8998, wm1814) + + - wlf,out-volume-limit : The volume limit value that should be applied to each + output channel. See the datasheet for exact values. Channels are specified + in the order OUT1L, OUT1R, OUT2L, OUT2R, etc. -- cgit v1.2.3 From 5418a9004126992aa2bbd07d79e8305659cb0dc9 Mon Sep 17 00:00:00 2001 From: Vladimir Barinov Date: Sat, 16 Sep 2017 21:48:47 +0300 Subject: arm: shmobile: Document Kingfisher board DT bindings Add Kingfisher Device tree bindings Documentation, listing it as a supported board. Kingfisher is the H3ULCB/M3ULCB extension board. Signed-off-by: Vladimir Barinov Acked-by: Geert Uytterhoeven Acked-by: Rob Herring Signed-off-by: Simon Horman --- Documentation/devicetree/bindings/arm/shmobile.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/shmobile.txt b/Documentation/devicetree/bindings/arm/shmobile.txt index a1f06711a4dd..e9bd3091dcf6 100644 --- a/Documentation/devicetree/bindings/arm/shmobile.txt +++ b/Documentation/devicetree/bindings/arm/shmobile.txt @@ -78,6 +78,8 @@ Boards: compatible = "iwave,g20d", "iwave,g20m", "renesas,r8a7743" - iWave Systems RZ/G1M Qseven System On Module (iW-RainboW-G20M-Qseven) compatible = "iwave,g20m", "renesas,r8a7743" + - Kingfisher (SBEV-RCAR-KF-M03) + compatible = "shimafuji,kingfisher" - Koelsch (RTP0RC7791SEB00010S) compatible = "renesas,koelsch", "renesas,r8a7791" - Kyoto Microcomputer Co. KZM-A9-Dual -- cgit v1.2.3 From e22b36bd75ad57fdf1010ce7d6d92df96311947b Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Fri, 15 Sep 2017 22:43:24 +0300 Subject: arm64: renesas: document Eagle board bindings Document the Eagle device tree bindings, listing it as a supported board. This allows to use checkpatch.pl to validate .dts files referring to the Eagle board. Signed-off-by: Sergei Shtylyov Reviewed-by: Geert Uytterhoeven Acked-by: Rob Herring Signed-off-by: Simon Horman --- Documentation/devicetree/bindings/arm/shmobile.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/shmobile.txt b/Documentation/devicetree/bindings/arm/shmobile.txt index e9bd3091dcf6..4fa984ada912 100644 --- a/Documentation/devicetree/bindings/arm/shmobile.txt +++ b/Documentation/devicetree/bindings/arm/shmobile.txt @@ -59,6 +59,8 @@ Boards: compatible = "renesas,bockw", "renesas,r8a7778" - Draak (RTP0RC77995SEB0010S) compatible = "renesas,draak", "renesas,r8a77995" + - Eagle (RTP0RC77970SEB0010S) + compatible = "renesas,eagle", "renesas,r8a77970" - Genmai (RTK772100BC00000BR) compatible = "renesas,genmai", "renesas,r7s72100" - GR-Peach (X28A-M01-E/F) -- cgit v1.2.3 From a6bcda44843c6dfced0fb973e2607c2a98addfa9 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 19 Sep 2017 11:52:43 +0200 Subject: cfg80211: remove unused function ieee80211_data_from_8023() This function hasn't been used since the removal of iwmc3200wifi in 2012. It also appears to have a bug when qos=True, since then it'll copy uninitialized stack memory to the SKB. Just remove the function entirely. Reported-by: Jouni Malinen Signed-off-by: Johannes Berg --- Documentation/driver-api/80211/cfg80211.rst | 3 - include/net/cfg80211.h | 13 ---- net/wireless/util.c | 115 ---------------------------- 3 files changed, 131 deletions(-) (limited to 'Documentation') diff --git a/Documentation/driver-api/80211/cfg80211.rst b/Documentation/driver-api/80211/cfg80211.rst index 8ffac57e1f5b..eeab91b59457 100644 --- a/Documentation/driver-api/80211/cfg80211.rst +++ b/Documentation/driver-api/80211/cfg80211.rst @@ -299,9 +299,6 @@ Data path helpers .. kernel-doc:: include/net/cfg80211.h :functions: ieee80211_data_to_8023 -.. kernel-doc:: include/net/cfg80211.h - :functions: ieee80211_data_from_8023 - .. kernel-doc:: include/net/cfg80211.h :functions: ieee80211_amsdu_to_8023s diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index aa9d993e519a..cc1996081463 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -4346,19 +4346,6 @@ static inline int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr, return ieee80211_data_to_8023_exthdr(skb, NULL, addr, iftype); } -/** - * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11 - * @skb: the 802.3 frame - * @addr: the device MAC address - * @iftype: the virtual interface type - * @bssid: the network bssid (used only for iftype STATION and ADHOC) - * @qos: build 802.11 QoS data frame - * Return: 0 on success, or a negative error code. - */ -int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, - enum nl80211_iftype iftype, const u8 *bssid, - bool qos); - /** * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame * diff --git a/net/wireless/util.c b/net/wireless/util.c index 4aab793c2f00..7dcdf67cba29 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -529,121 +529,6 @@ int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr, } EXPORT_SYMBOL(ieee80211_data_to_8023_exthdr); -int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr, - enum nl80211_iftype iftype, - const u8 *bssid, bool qos) -{ - struct ieee80211_hdr hdr; - u16 hdrlen, ethertype; - __le16 fc; - const u8 *encaps_data; - int encaps_len, skip_header_bytes; - int nh_pos, h_pos; - int head_need; - - if (unlikely(skb->len < ETH_HLEN)) - return -EINVAL; - - nh_pos = skb_network_header(skb) - skb->data; - h_pos = skb_transport_header(skb) - skb->data; - - /* convert Ethernet header to proper 802.11 header (based on - * operation mode) */ - ethertype = (skb->data[12] << 8) | skb->data[13]; - fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA); - - switch (iftype) { - case NL80211_IFTYPE_AP: - case NL80211_IFTYPE_AP_VLAN: - case NL80211_IFTYPE_P2P_GO: - fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS); - /* DA BSSID SA */ - memcpy(hdr.addr1, skb->data, ETH_ALEN); - memcpy(hdr.addr2, addr, ETH_ALEN); - memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN); - hdrlen = 24; - break; - case NL80211_IFTYPE_STATION: - case NL80211_IFTYPE_P2P_CLIENT: - fc |= cpu_to_le16(IEEE80211_FCTL_TODS); - /* BSSID SA DA */ - memcpy(hdr.addr1, bssid, ETH_ALEN); - memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN); - memcpy(hdr.addr3, skb->data, ETH_ALEN); - hdrlen = 24; - break; - case NL80211_IFTYPE_OCB: - case NL80211_IFTYPE_ADHOC: - /* DA SA BSSID */ - memcpy(hdr.addr1, skb->data, ETH_ALEN); - memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN); - memcpy(hdr.addr3, bssid, ETH_ALEN); - hdrlen = 24; - break; - default: - return -EOPNOTSUPP; - } - - if (qos) { - fc |= cpu_to_le16(IEEE80211_STYPE_QOS_DATA); - hdrlen += 2; - } - - hdr.frame_control = fc; - hdr.duration_id = 0; - hdr.seq_ctrl = 0; - - skip_header_bytes = ETH_HLEN; - if (ethertype == ETH_P_AARP || ethertype == ETH_P_IPX) { - encaps_data = bridge_tunnel_header; - encaps_len = sizeof(bridge_tunnel_header); - skip_header_bytes -= 2; - } else if (ethertype >= ETH_P_802_3_MIN) { - encaps_data = rfc1042_header; - encaps_len = sizeof(rfc1042_header); - skip_header_bytes -= 2; - } else { - encaps_data = NULL; - encaps_len = 0; - } - - skb_pull(skb, skip_header_bytes); - nh_pos -= skip_header_bytes; - h_pos -= skip_header_bytes; - - head_need = hdrlen + encaps_len - skb_headroom(skb); - - if (head_need > 0 || skb_cloned(skb)) { - head_need = max(head_need, 0); - if (head_need) - skb_orphan(skb); - - if (pskb_expand_head(skb, head_need, 0, GFP_ATOMIC)) - return -ENOMEM; - } - - if (encaps_data) { - memcpy(skb_push(skb, encaps_len), encaps_data, encaps_len); - nh_pos += encaps_len; - h_pos += encaps_len; - } - - memcpy(skb_push(skb, hdrlen), &hdr, hdrlen); - - nh_pos += hdrlen; - h_pos += hdrlen; - - /* Update skb pointers to various headers since this modified frame - * is going to go through Linux networking code that may potentially - * need things like pointer to IP header. */ - skb_reset_mac_header(skb); - skb_set_network_header(skb, nh_pos); - skb_set_transport_header(skb, h_pos); - - return 0; -} -EXPORT_SYMBOL(ieee80211_data_from_8023); - static void __frame_add_frag(struct sk_buff *skb, struct page *page, void *ptr, int len, int size) -- cgit v1.2.3 From e8901f3ab5b5c2ce75abdcd182b07d00fd6746fe Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 22 Sep 2017 14:58:23 +0900 Subject: dt-bindings: nand: denali: reduce the register space in the example This example allocates much more than needed for address regions. As for "denali_reg", as you see in drivers/mtd/nand/denali.h, all registers fit in 0x1000. As for "nand_data", this IP is generally configured to use Indexed Addressing mode, where there are only two registers in the address translation module (CTRL: 0x00, DATA: 0x10). Altera SOCFPGA is also this case. So, 0x20 is enough. Signed-off-by: Masahiro Yamada Acked-by: Rob Herring Signed-off-by: Boris Brezillon --- Documentation/devicetree/bindings/mtd/denali-nand.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mtd/denali-nand.txt b/Documentation/devicetree/bindings/mtd/denali-nand.txt index 504291d2e5c2..0ee8edb60efc 100644 --- a/Documentation/devicetree/bindings/mtd/denali-nand.txt +++ b/Documentation/devicetree/bindings/mtd/denali-nand.txt @@ -29,7 +29,7 @@ nand: nand@ff900000 { #address-cells = <1>; #size-cells = <1>; compatible = "altr,socfpga-denali-nand"; - reg = <0xff900000 0x100000>, <0xffb80000 0x10000>; + reg = <0xff900000 0x20>, <0xffb80000 0x1000>; reg-names = "nand_data", "denali_reg"; interrupts = <0 144 4>; }; -- cgit v1.2.3 From 9ebd65cbdfbf59e7ef4b9c0c8fd767ff63f60411 Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Wed, 6 Sep 2017 17:15:54 +0530 Subject: dt-bindings: sdhci-omap: Add bindings for the sdhci-omap controller Add binding for the TI's sdhci-omap controller. Signed-off-by: Kishon Vijay Abraham I Acked-by: Tony Lindgren Acked-by: Rob Herring Signed-off-by: Ulf Hansson --- Documentation/devicetree/bindings/mmc/sdhci-omap.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-omap.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt new file mode 100644 index 000000000000..51775a372c06 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt @@ -0,0 +1,16 @@ +* TI OMAP SDHCI Controller + +Refer to mmc.txt for standard MMC bindings. + +Required properties: +- compatible: Should be "ti,dra7-sdhci" for DRA7 and DRA72 controllers +- ti,hwmods: Must be "mmc", is controller instance starting 1 + +Example: + mmc1: mmc@4809c000 { + compatible = "ti,dra7-sdhci"; + reg = <0x4809c000 0x400>; + ti,hwmods = "mmc1"; + bus-width = <4>; + vmmc-supply = <&vmmc>; /* phandle to regulator node */ + }; -- cgit v1.2.3 From a9a1d2a7827c9cf780966d0879c73ef5a91380e9 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 22 Sep 2017 11:02:10 +0200 Subject: pinctrl/gpio: Unify namespace for cross-calls The pinctrl_request_gpio() and pinctrl_free_gpio() break the nice namespacing in the other cross-calls like pinctrl_gpio_foo(). Just rename them and all references so we have one namespace with all cross-calls under pinctrl_gpio_*(). Signed-off-by: Linus Walleij --- Documentation/driver-api/pinctl.rst | 6 +++--- Documentation/gpio/gpio-legacy.txt | 10 +++++----- Documentation/translations/zh_CN/gpio.txt | 6 +++--- drivers/gpio/gpio-aspeed.c | 4 ++-- drivers/gpio/gpio-em.c | 4 ++-- drivers/gpio/gpio-pxa.c | 4 ++-- drivers/gpio/gpio-rcar.c | 4 ++-- drivers/gpio/gpio-tegra.c | 4 ++-- drivers/gpio/gpio-tz1090.c | 4 ++-- drivers/gpio/gpiolib.c | 4 ++-- drivers/pinctrl/bcm/pinctrl-iproc-gpio.c | 4 ++-- drivers/pinctrl/bcm/pinctrl-nsp-gpio.c | 4 ++-- drivers/pinctrl/core.c | 12 ++++++------ drivers/pinctrl/core.h | 2 +- drivers/pinctrl/meson/pinctrl-meson.c | 4 ++-- drivers/pinctrl/sh-pfc/gpio.c | 4 ++-- drivers/pinctrl/sirf/pinctrl-atlas7.c | 4 ++-- drivers/pinctrl/sirf/pinctrl-sirf.c | 4 ++-- drivers/pinctrl/spear/pinctrl-plgpio.c | 6 +++--- drivers/pinctrl/stm32/pinctrl-stm32.c | 4 ++-- include/linux/pinctrl/consumer.h | 8 ++++---- 21 files changed, 53 insertions(+), 53 deletions(-) (limited to 'Documentation') diff --git a/Documentation/driver-api/pinctl.rst b/Documentation/driver-api/pinctl.rst index 48f15b4f9d3e..6cb68d67fa75 100644 --- a/Documentation/driver-api/pinctl.rst +++ b/Documentation/driver-api/pinctl.rst @@ -757,8 +757,8 @@ that your datasheet calls "GPIO mode", but actually is just an electrical configuration for a certain device. See the section below named "GPIO mode pitfalls" for more details on this scenario. -The public pinmux API contains two functions named pinctrl_request_gpio() -and pinctrl_free_gpio(). These two functions shall *ONLY* be called from +The public pinmux API contains two functions named pinctrl_gpio_request() +and pinctrl_gpio_free(). These two functions shall *ONLY* be called from gpiolib-based drivers as part of their gpio_request() and gpio_free() semantics. Likewise the pinctrl_gpio_direction_[input|output] shall only be called from within respective gpio_direction_[input|output] @@ -790,7 +790,7 @@ gpiolib driver and the affected GPIO range, pin offset and desired direction will be passed along to this function. Alternatively to using these special functions, it is fully allowed to use -named functions for each GPIO pin, the pinctrl_request_gpio() will attempt to +named functions for each GPIO pin, the pinctrl_gpio_request() will attempt to obtain the function "gpioN" where "N" is the global GPIO pin number if no special GPIO-handler is registered. diff --git a/Documentation/gpio/gpio-legacy.txt b/Documentation/gpio/gpio-legacy.txt index 5eacc147ea87..8356d0e78f67 100644 --- a/Documentation/gpio/gpio-legacy.txt +++ b/Documentation/gpio/gpio-legacy.txt @@ -273,8 +273,8 @@ easily, gating off unused clocks. For GPIOs that use pins known to the pinctrl subsystem, that subsystem should be informed of their use; a gpiolib driver's .request() operation may call -pinctrl_request_gpio(), and a gpiolib driver's .free() operation may call -pinctrl_free_gpio(). The pinctrl subsystem allows a pinctrl_request_gpio() +pinctrl_gpio_request(), and a gpiolib driver's .free() operation may call +pinctrl_gpio_free(). The pinctrl subsystem allows a pinctrl_gpio_request() to succeed concurrently with a pin or pingroup being "owned" by a device for pin multiplexing. @@ -448,8 +448,8 @@ together with an optional gpio feature. We have already covered the case where e.g. a GPIO controller need to reserve a pin or set the direction of a pin by calling any of: -pinctrl_request_gpio() -pinctrl_free_gpio() +pinctrl_gpio_request() +pinctrl_gpio_free() pinctrl_gpio_direction_input() pinctrl_gpio_direction_output() @@ -466,7 +466,7 @@ gpio (under gpiolib) is still maintained by gpio drivers. It may happen that different pin ranges in a SoC is managed by different gpio drivers. This makes it logical to let gpio drivers announce their pin ranges to -the pin ctrl subsystem before it will call 'pinctrl_request_gpio' in order +the pin ctrl subsystem before it will call 'pinctrl_gpio_request' in order to request the corresponding pin to be prepared by the pinctrl subsystem before any gpio usage. diff --git a/Documentation/translations/zh_CN/gpio.txt b/Documentation/translations/zh_CN/gpio.txt index bce972521065..4f8bf30a41dc 100644 --- a/Documentation/translations/zh_CN/gpio.txt +++ b/Documentation/translations/zh_CN/gpio.txt @@ -257,9 +257,9 @@ GPIO 值的命令需要等待其信息排到队首才发送命令，再获得其 简单地关闭未使用时钟)。 对于 GPIO 使用 pinctrl 子系统已知的引脚，子系统应该被告知其使用情况； -一个 gpiolib 驱动的 .request()操作应调用 pinctrl_request_gpio()， -而 gpiolib 驱动的 .free()操作应调用 pinctrl_free_gpio()。pinctrl -子系统允许 pinctrl_request_gpio()在某个引脚或引脚组以复用形式“属于” +一个 gpiolib 驱动的 .request()操作应调用 pinctrl_gpio_request()， +而 gpiolib 驱动的 .free()操作应调用 pinctrl_gpio_free()。pinctrl +子系统允许 pinctrl_gpio_request()在某个引脚或引脚组以复用形式“属于” 一个设备时都成功返回。 任何须将 GPIO 信号导向适当引脚的引脚复用硬件的编程应该发生在 GPIO diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c index bfc53995064a..c269cc199707 100644 --- a/drivers/gpio/gpio-aspeed.c +++ b/drivers/gpio/gpio-aspeed.c @@ -536,12 +536,12 @@ static int aspeed_gpio_request(struct gpio_chip *chip, unsigned int offset) if (!have_gpio(gpiochip_get_data(chip), offset)) return -ENODEV; - return pinctrl_request_gpio(chip->base + offset); + return pinctrl_gpio_request(chip->base + offset); } static void aspeed_gpio_free(struct gpio_chip *chip, unsigned int offset) { - pinctrl_free_gpio(chip->base + offset); + pinctrl_gpio_free(chip->base + offset); } static inline void __iomem *bank_debounce_reg(struct aspeed_gpio *gpio, diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c index 8d32ccc980d9..b86e09e1b13b 100644 --- a/drivers/gpio/gpio-em.c +++ b/drivers/gpio/gpio-em.c @@ -239,12 +239,12 @@ static int em_gio_to_irq(struct gpio_chip *chip, unsigned offset) static int em_gio_request(struct gpio_chip *chip, unsigned offset) { - return pinctrl_request_gpio(chip->base + offset); + return pinctrl_gpio_request(chip->base + offset); } static void em_gio_free(struct gpio_chip *chip, unsigned offset) { - pinctrl_free_gpio(chip->base + offset); + pinctrl_gpio_free(chip->base + offset); /* Set the GPIO as an input to ensure that the next GPIO request won't * drive the GPIO pin as an output. diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c index 6029899789f3..da68d6cbc1e4 100644 --- a/drivers/gpio/gpio-pxa.c +++ b/drivers/gpio/gpio-pxa.c @@ -332,12 +332,12 @@ static int pxa_gpio_of_xlate(struct gpio_chip *gc, static int pxa_gpio_request(struct gpio_chip *chip, unsigned int offset) { - return pinctrl_request_gpio(chip->base + offset); + return pinctrl_gpio_request(chip->base + offset); } static void pxa_gpio_free(struct gpio_chip *chip, unsigned int offset) { - pinctrl_free_gpio(chip->base + offset); + pinctrl_gpio_free(chip->base + offset); } static int pxa_init_gpio_chip(struct pxa_gpio_chip *pchip, int ngpio, diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c index 1f0871553fd2..43b51045aa47 100644 --- a/drivers/gpio/gpio-rcar.c +++ b/drivers/gpio/gpio-rcar.c @@ -249,7 +249,7 @@ static int gpio_rcar_request(struct gpio_chip *chip, unsigned offset) if (error < 0) return error; - error = pinctrl_request_gpio(chip->base + offset); + error = pinctrl_gpio_request(chip->base + offset); if (error) pm_runtime_put(&p->pdev->dev); @@ -260,7 +260,7 @@ static void gpio_rcar_free(struct gpio_chip *chip, unsigned offset) { struct gpio_rcar_priv *p = gpiochip_get_data(chip); - pinctrl_free_gpio(chip->base + offset); + pinctrl_gpio_free(chip->base + offset); /* * Set the GPIO as an input to ensure that the next GPIO request won't diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c index fbaf974277df..8db47f671708 100644 --- a/drivers/gpio/gpio-tegra.c +++ b/drivers/gpio/gpio-tegra.c @@ -141,14 +141,14 @@ static void tegra_gpio_disable(struct tegra_gpio_info *tgi, unsigned int gpio) static int tegra_gpio_request(struct gpio_chip *chip, unsigned int offset) { - return pinctrl_request_gpio(offset); + return pinctrl_gpio_request(offset); } static void tegra_gpio_free(struct gpio_chip *chip, unsigned int offset) { struct tegra_gpio_info *tgi = gpiochip_get_data(chip); - pinctrl_free_gpio(offset); + pinctrl_gpio_free(offset); tegra_gpio_disable(tgi, offset); } diff --git a/drivers/gpio/gpio-tz1090.c b/drivers/gpio/gpio-tz1090.c index 22c5be65051f..0bb9bb583889 100644 --- a/drivers/gpio/gpio-tz1090.c +++ b/drivers/gpio/gpio-tz1090.c @@ -232,7 +232,7 @@ static int tz1090_gpio_request(struct gpio_chip *chip, unsigned int offset) struct tz1090_gpio_bank *bank = gpiochip_get_data(chip); int ret; - ret = pinctrl_request_gpio(chip->base + offset); + ret = pinctrl_gpio_request(chip->base + offset); if (ret) return ret; @@ -246,7 +246,7 @@ static void tz1090_gpio_free(struct gpio_chip *chip, unsigned int offset) { struct tz1090_gpio_bank *bank = gpiochip_get_data(chip); - pinctrl_free_gpio(chip->base + offset); + pinctrl_gpio_free(chip->base + offset); tz1090_gpio_clear_bit(bank, REG_GPIO_BIT_EN, offset); } diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index eb80dac4e26a..a9cb825ef335 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1859,7 +1859,7 @@ static inline void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gpiochip) */ int gpiochip_generic_request(struct gpio_chip *chip, unsigned offset) { - return pinctrl_request_gpio(chip->gpiodev->base + offset); + return pinctrl_gpio_request(chip->gpiodev->base + offset); } EXPORT_SYMBOL_GPL(gpiochip_generic_request); @@ -1870,7 +1870,7 @@ EXPORT_SYMBOL_GPL(gpiochip_generic_request); */ void gpiochip_generic_free(struct gpio_chip *chip, unsigned offset) { - pinctrl_free_gpio(chip->gpiodev->base + offset); + pinctrl_gpio_free(chip->gpiodev->base + offset); } EXPORT_SYMBOL_GPL(gpiochip_generic_free); diff --git a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c index 85a8c97d9dfe..5d08d989b1d0 100644 --- a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c +++ b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c @@ -311,7 +311,7 @@ static int iproc_gpio_request(struct gpio_chip *gc, unsigned offset) if (!chip->pinmux_is_supported) return 0; - return pinctrl_request_gpio(gpio); + return pinctrl_gpio_request(gpio); } static void iproc_gpio_free(struct gpio_chip *gc, unsigned offset) @@ -322,7 +322,7 @@ static void iproc_gpio_free(struct gpio_chip *gc, unsigned offset) if (!chip->pinmux_is_supported) return; - pinctrl_free_gpio(gpio); + pinctrl_gpio_free(gpio); } static int iproc_gpio_direction_input(struct gpio_chip *gc, unsigned gpio) diff --git a/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c b/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c index 1cfe45fd391f..c1887072936e 100644 --- a/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c +++ b/drivers/pinctrl/bcm/pinctrl-nsp-gpio.c @@ -282,14 +282,14 @@ static int nsp_gpio_request(struct gpio_chip *gc, unsigned offset) { unsigned gpio = gc->base + offset; - return pinctrl_request_gpio(gpio); + return pinctrl_gpio_request(gpio); } static void nsp_gpio_free(struct gpio_chip *gc, unsigned offset) { unsigned gpio = gc->base + offset; - pinctrl_free_gpio(gpio); + pinctrl_gpio_free(gpio); } static int nsp_gpio_direction_input(struct gpio_chip *gc, unsigned gpio) diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 56fbe4c3e800..4c8d5b23e4d0 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -733,14 +733,14 @@ int pinctrl_get_group_selector(struct pinctrl_dev *pctldev, } /** - * pinctrl_request_gpio() - request a single pin to be used as GPIO + * pinctrl_gpio_request() - request a single pin to be used as GPIO * @gpio: the GPIO pin number from the GPIO subsystem number space * * This function should *ONLY* be used from gpiolib-based GPIO drivers, * as part of their gpio_request() semantics, platforms and individual drivers * shall *NOT* request GPIO pins to be muxed in. */ -int pinctrl_request_gpio(unsigned gpio) +int pinctrl_gpio_request(unsigned gpio) { struct pinctrl_dev *pctldev; struct pinctrl_gpio_range *range; @@ -765,17 +765,17 @@ int pinctrl_request_gpio(unsigned gpio) return ret; } -EXPORT_SYMBOL_GPL(pinctrl_request_gpio); +EXPORT_SYMBOL_GPL(pinctrl_gpio_request); /** - * pinctrl_free_gpio() - free control on a single pin, currently used as GPIO + * pinctrl_gpio_free() - free control on a single pin, currently used as GPIO * @gpio: the GPIO pin number from the GPIO subsystem number space * * This function should *ONLY* be used from gpiolib-based GPIO drivers, * as part of their gpio_free() semantics, platforms and individual drivers * shall *NOT* request GPIO pins to be muxed out. */ -void pinctrl_free_gpio(unsigned gpio) +void pinctrl_gpio_free(unsigned gpio) { struct pinctrl_dev *pctldev; struct pinctrl_gpio_range *range; @@ -795,7 +795,7 @@ void pinctrl_free_gpio(unsigned gpio) mutex_unlock(&pctldev->mutex); } -EXPORT_SYMBOL_GPL(pinctrl_free_gpio); +EXPORT_SYMBOL_GPL(pinctrl_gpio_free); static int pinctrl_gpio_direction(unsigned gpio, bool input) { diff --git a/drivers/pinctrl/core.h b/drivers/pinctrl/core.h index 7880c3adc450..8cf2eba17c8c 100644 --- a/drivers/pinctrl/core.h +++ b/drivers/pinctrl/core.h @@ -154,7 +154,7 @@ struct pinctrl_setting { * or pin, and each of these will increment the @usecount. * @mux_owner: The name of device that called pinctrl_get(). * @mux_setting: The most recent selected mux setting for this pin, if any. - * @gpio_owner: If pinctrl_request_gpio() was called for this pin, this is + * @gpio_owner: If pinctrl_gpio_request() was called for this pin, this is * the name of the GPIO that "owns" this pin. */ struct pin_desc { diff --git a/drivers/pinctrl/meson/pinctrl-meson.c b/drivers/pinctrl/meson/pinctrl-meson.c index 66ed70c12733..e6e12a7b21e0 100644 --- a/drivers/pinctrl/meson/pinctrl-meson.c +++ b/drivers/pinctrl/meson/pinctrl-meson.c @@ -412,14 +412,14 @@ static const struct pinconf_ops meson_pinconf_ops = { static int meson_gpio_request(struct gpio_chip *chip, unsigned gpio) { - return pinctrl_request_gpio(chip->base + gpio); + return pinctrl_gpio_request(chip->base + gpio); } static void meson_gpio_free(struct gpio_chip *chip, unsigned gpio) { struct meson_pinctrl *pc = gpiochip_get_data(chip); - pinctrl_free_gpio(pc->data->pin_base + gpio); + pinctrl_gpio_free(pc->data->pin_base + gpio); } static int meson_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c index 6b5422766f13..946d9be50b62 100644 --- a/drivers/pinctrl/sh-pfc/gpio.c +++ b/drivers/pinctrl/sh-pfc/gpio.c @@ -139,12 +139,12 @@ static int gpio_pin_request(struct gpio_chip *gc, unsigned offset) if (idx < 0 || pfc->info->pins[idx].enum_id == 0) return -EINVAL; - return pinctrl_request_gpio(offset); + return pinctrl_gpio_request(offset); } static void gpio_pin_free(struct gpio_chip *gc, unsigned offset) { - return pinctrl_free_gpio(offset); + return pinctrl_gpio_free(offset); } static void gpio_pin_set_value(struct sh_pfc_chip *chip, unsigned offset, diff --git a/drivers/pinctrl/sirf/pinctrl-atlas7.c b/drivers/pinctrl/sirf/pinctrl-atlas7.c index 4db9323251e3..f4b192b493a0 100644 --- a/drivers/pinctrl/sirf/pinctrl-atlas7.c +++ b/drivers/pinctrl/sirf/pinctrl-atlas7.c @@ -5860,7 +5860,7 @@ static int atlas7_gpio_request(struct gpio_chip *chip, if (ret < 0) return ret; - if (pinctrl_request_gpio(chip->base + gpio)) + if (pinctrl_gpio_request(chip->base + gpio)) return -ENODEV; raw_spin_lock_irqsave(&a7gc->lock, flags); @@ -5890,7 +5890,7 @@ static void atlas7_gpio_free(struct gpio_chip *chip, raw_spin_unlock_irqrestore(&a7gc->lock, flags); - pinctrl_free_gpio(chip->base + gpio); + pinctrl_gpio_free(chip->base + gpio); } static int atlas7_gpio_direction_input(struct gpio_chip *chip, diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c b/drivers/pinctrl/sirf/pinctrl-sirf.c index d3ef05973901..d64add0b84cc 100644 --- a/drivers/pinctrl/sirf/pinctrl-sirf.c +++ b/drivers/pinctrl/sirf/pinctrl-sirf.c @@ -614,7 +614,7 @@ static int sirfsoc_gpio_request(struct gpio_chip *chip, unsigned offset) struct sirfsoc_gpio_bank *bank = sirfsoc_gpio_to_bank(sgpio, offset); unsigned long flags; - if (pinctrl_request_gpio(chip->base + offset)) + if (pinctrl_gpio_request(chip->base + offset)) return -ENODEV; spin_lock_irqsave(&bank->lock, flags); @@ -644,7 +644,7 @@ static void sirfsoc_gpio_free(struct gpio_chip *chip, unsigned offset) spin_unlock_irqrestore(&bank->lock, flags); - pinctrl_free_gpio(chip->base + offset); + pinctrl_gpio_free(chip->base + offset); } static int sirfsoc_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c b/drivers/pinctrl/spear/pinctrl-plgpio.c index cf6d68c7345b..7a33e2e1e3e7 100644 --- a/drivers/pinctrl/spear/pinctrl-plgpio.c +++ b/drivers/pinctrl/spear/pinctrl-plgpio.c @@ -204,7 +204,7 @@ static int plgpio_request(struct gpio_chip *chip, unsigned offset) if (offset >= chip->ngpio) return -EINVAL; - ret = pinctrl_request_gpio(gpio); + ret = pinctrl_gpio_request(gpio); if (ret) return ret; @@ -242,7 +242,7 @@ err1: if (!IS_ERR(plgpio->clk)) clk_disable(plgpio->clk); err0: - pinctrl_free_gpio(gpio); + pinctrl_gpio_free(gpio); return ret; } @@ -273,7 +273,7 @@ disable_clk: if (!IS_ERR(plgpio->clk)) clk_disable(plgpio->clk); - pinctrl_free_gpio(gpio); + pinctrl_gpio_free(gpio); } /* PLGPIO IRQ */ diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c index 50299ad96659..a954d25bac4e 100644 --- a/drivers/pinctrl/stm32/pinctrl-stm32.c +++ b/drivers/pinctrl/stm32/pinctrl-stm32.c @@ -150,12 +150,12 @@ static int stm32_gpio_request(struct gpio_chip *chip, unsigned offset) return -EINVAL; } - return pinctrl_request_gpio(chip->base + offset); + return pinctrl_gpio_request(chip->base + offset); } static void stm32_gpio_free(struct gpio_chip *chip, unsigned offset) { - pinctrl_free_gpio(chip->base + offset); + pinctrl_gpio_free(chip->base + offset); } static int stm32_gpio_get(struct gpio_chip *chip, unsigned offset) diff --git a/include/linux/pinctrl/consumer.h b/include/linux/pinctrl/consumer.h index a0f2aba72fa9..0412cc9833e9 100644 --- a/include/linux/pinctrl/consumer.h +++ b/include/linux/pinctrl/consumer.h @@ -25,8 +25,8 @@ struct device; #ifdef CONFIG_PINCTRL /* External interface to pin control */ -extern int pinctrl_request_gpio(unsigned gpio); -extern void pinctrl_free_gpio(unsigned gpio); +extern int pinctrl_gpio_request(unsigned gpio); +extern void pinctrl_gpio_free(unsigned gpio); extern int pinctrl_gpio_direction_input(unsigned gpio); extern int pinctrl_gpio_direction_output(unsigned gpio); extern int pinctrl_gpio_set_config(unsigned gpio, unsigned long config); @@ -62,12 +62,12 @@ static inline int pinctrl_pm_select_idle_state(struct device *dev) #else /* !CONFIG_PINCTRL */ -static inline int pinctrl_request_gpio(unsigned gpio) +static inline int pinctrl_gpio_request(unsigned gpio) { return 0; } -static inline void pinctrl_free_gpio(unsigned gpio) +static inline void pinctrl_gpio_free(unsigned gpio) { } -- cgit v1.2.3 From 6e480762aa3fb83a038761a54343e197a984821a Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Sun, 3 Sep 2017 21:53:12 +0200 Subject: dt-bindings: gpu: mali-utgard: Add Rockchip Utgard Malis Some (older or lower power) Rockchip socs use Utgard-based Mali-GPUs. So add the necessary compatibles for them. As the setup is the same for all of them (needing only the additional reset line), they get added in a somewhat condensed form, to not inflate the document unnecessary. Signed-off-by: Heiko Stuebner Acked-by: Rob Herring --- Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt index b4ebd56d03f3..24aacafb2594 100644 --- a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt +++ b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt @@ -13,6 +13,10 @@ Required properties: + allwinner,sun50i-h5-mali + amlogic,meson-gxbb-mali + amlogic,meson-gxl-mali + + rockchip,rk3036-mali + + rockchip,rk3066-mali + + rockchip,rk3188-mali + + rockchip,rk3228-mali + stericsson,db8500-mali - reg: Physical base address and length of the GPU registers @@ -63,6 +67,10 @@ to specify one more vendor-specific compatible, among: Required properties: * resets: phandle to the reset line for the GPU + - Rockchip variants: + Required properties: + * resets: phandle to the reset line for the GPU + - stericsson,db8500-mali Required properties: * interrupt-names and interrupts: -- cgit v1.2.3 From dc1f65c5bd04918a8975009d694fa244f433d08e Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Sun, 3 Sep 2017 22:09:49 +0200 Subject: dt-bindings: gpu: mali-utgard: add optional supply regulator Mali GPUs have a separate supplying regulator in a lot of socs, so describe a mali-supply property. The already described operating points will likely also need access to this regulator. Signed-off-by: Heiko Stuebner Acked-by: Rob Herring --- Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt index 24aacafb2594..25ebf4140e69 100644 --- a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt +++ b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt @@ -44,6 +44,10 @@ Optional properties: Memory region to allocate from, as defined in Documentation/devicetree/bindi/reserved-memory/reserved-memory.txt + - mali-supply: + Phandle to regulator for the Mali device, as defined in + Documentation/devicetree/bindings/regulator/regulator.txt for details. + - operating-points-v2: Operating Points for the GPU, as defined in Documentation/devicetree/bindings/opp/opp.txt -- cgit v1.2.3 From 6a4d02f88fa2b6c21d8ba645e690bdbfe6adcb1f Mon Sep 17 00:00:00 2001 From: Heiko Stuebner Date: Fri, 15 Sep 2017 11:07:55 +0200 Subject: dt-bindings: gpu: mali-utgard: add optional power-domain reference On some socs Mali Utgard gpus have both soc power-domains and external supplying regulators, so add an optional power-domains property for reference. Signed-off-by: Heiko Stuebner Acked-by: Rob Herring --- Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt index 25ebf4140e69..c6814d7cc2b2 100644 --- a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt +++ b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.txt @@ -52,6 +52,10 @@ Optional properties: Operating Points for the GPU, as defined in Documentation/devicetree/bindings/opp/opp.txt + - power-domains: + A power domain consumer specifier as defined in + Documentation/devicetree/bindings/power/power_domain.txt + Vendor-specific bindings ------------------------ -- cgit v1.2.3 From f1f2237ff699bbc1a0265ed10407ae8d4a52008e Mon Sep 17 00:00:00 2001 From: PrasannaKumar Muralidharan Date: Wed, 23 Aug 2017 20:34:43 +0530 Subject: dt/bindings: exynos-rng: Move dt binding documentation to bindings/crypto Samsung exynos PRNG driver is using crypto framework instead of hw_random framework. So move the devicetree binding to crypto folder. Signed-off-by: PrasannaKumar Muralidharan Reviewed-by: Krzysztof Kozlowski Signed-off-by: Herbert Xu --- .../devicetree/bindings/crypto/samsung,exynos-rng4.txt | 17 +++++++++++++++++ .../devicetree/bindings/rng/samsung,exynos-rng4.txt | 17 ----------------- MAINTAINERS | 2 +- 3 files changed, 18 insertions(+), 18 deletions(-) create mode 100644 Documentation/devicetree/bindings/crypto/samsung,exynos-rng4.txt delete mode 100644 Documentation/devicetree/bindings/rng/samsung,exynos-rng4.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/crypto/samsung,exynos-rng4.txt b/Documentation/devicetree/bindings/crypto/samsung,exynos-rng4.txt new file mode 100644 index 000000000000..4ca8dd4d7e66 --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/samsung,exynos-rng4.txt @@ -0,0 +1,17 @@ +Exynos Pseudo Random Number Generator + +Required properties: + +- compatible : Should be "samsung,exynos4-rng". +- reg : Specifies base physical address and size of the registers map. +- clocks : Phandle to clock-controller plus clock-specifier pair. +- clock-names : "secss" as a clock name. + +Example: + + rng@10830400 { + compatible = "samsung,exynos4-rng"; + reg = <0x10830400 0x200>; + clocks = <&clock CLK_SSS>; + clock-names = "secss"; + }; diff --git a/Documentation/devicetree/bindings/rng/samsung,exynos-rng4.txt b/Documentation/devicetree/bindings/rng/samsung,exynos-rng4.txt deleted file mode 100644 index 4ca8dd4d7e66..000000000000 --- a/Documentation/devicetree/bindings/rng/samsung,exynos-rng4.txt +++ /dev/null @@ -1,17 +0,0 @@ -Exynos Pseudo Random Number Generator - -Required properties: - -- compatible : Should be "samsung,exynos4-rng". -- reg : Specifies base physical address and size of the registers map. -- clocks : Phandle to clock-controller plus clock-specifier pair. -- clock-names : "secss" as a clock name. - -Example: - - rng@10830400 { - compatible = "samsung,exynos4-rng"; - reg = <0x10830400 0x200>; - clocks = <&clock CLK_SSS>; - clock-names = "secss"; - }; diff --git a/MAINTAINERS b/MAINTAINERS index 2281af4b41b6..92df4e80a170 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11743,7 +11743,7 @@ L: linux-crypto@vger.kernel.org L: linux-samsung-soc@vger.kernel.org S: Maintained F: drivers/crypto/exynos-rng.c -F: Documentation/devicetree/bindings/rng/samsung,exynos-rng4.txt +F: Documentation/devicetree/bindings/crypto/samsung,exynos-rng4.txt SAMSUNG FRAMEBUFFER DRIVER M: Jingoo Han -- cgit v1.2.3 From d21010789ce0efb48b56de02f57ae56cd40b6503 Mon Sep 17 00:00:00 2001 From: Roy Pledge Date: Mon, 18 Sep 2017 16:39:39 -0400 Subject: dt-bindings: soc/fsl: Update reserved memory binding for QBMan Updates the QMan and BMan device tree bindings for reserved memory nodes. This makes the reserved memory allocation compatible with the shared-dma-pool usage. Signed-off-by: Roy Pledge Acked-by: Rob Herring Signed-off-by: Li Yang --- Documentation/devicetree/bindings/soc/fsl/bman.txt | 12 +++++----- Documentation/devicetree/bindings/soc/fsl/qman.txt | 26 ++++++++++++++++------ 2 files changed, 26 insertions(+), 12 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/soc/fsl/bman.txt b/Documentation/devicetree/bindings/soc/fsl/bman.txt index 47ac834414d8..48eed140765b 100644 --- a/Documentation/devicetree/bindings/soc/fsl/bman.txt +++ b/Documentation/devicetree/bindings/soc/fsl/bman.txt @@ -65,8 +65,8 @@ to the respective BMan instance BMan Private Memory Node BMan requires a contiguous range of physical memory used for the backing store -for BMan Free Buffer Proxy Records (FBPR). This memory is reserved/allocated as a -node under the /reserved-memory node +for BMan Free Buffer Proxy Records (FBPR). This memory is reserved/allocated as +a node under the /reserved-memory node. The BMan FBPR memory node must be named "bman-fbpr" @@ -75,7 +75,9 @@ PROPERTIES - compatible Usage: required Value type: - Definition: Must inclide "fsl,bman-fbpr" + Definition: PPC platforms: Must include "fsl,bman-fbpr" + ARM platforms: Must include "shared-dma-pool" + as well as the "no-map" property The following constraints are relevant to the FBPR private memory: - The size must be 2^(size + 1), with size = 11..33. That is 4 KiB to @@ -100,10 +102,10 @@ The example below shows a BMan FBPR dynamic allocation memory node ranges; bman_fbpr: bman-fbpr { - compatible = "fsl,bman-fbpr"; - alloc-ranges = <0 0 0x10 0>; + compatible = "shared-mem-pool"; size = <0 0x1000000>; alignment = <0 0x1000000>; + no-map; }; }; diff --git a/Documentation/devicetree/bindings/soc/fsl/qman.txt b/Documentation/devicetree/bindings/soc/fsl/qman.txt index 556ebb8be75d..ee96afd2af72 100644 --- a/Documentation/devicetree/bindings/soc/fsl/qman.txt +++ b/Documentation/devicetree/bindings/soc/fsl/qman.txt @@ -60,6 +60,12 @@ are located at offsets 0xbf8 and 0xbfc Value type: Definition: Reference input clock. Its frequency is half of the platform clock +- memory-regions + Usage: Required for ARM + Value type: + Definition: List of phandles referencing the QMan private memory + nodes (described below). The qman-fqd node must be + first followed by qman-pfdr node. Only used on ARM Devices connected to a QMan instance via Direct Connect Portals (DCP) must link to the respective QMan instance @@ -74,7 +80,9 @@ QMan Private Memory Nodes QMan requires two contiguous range of physical memory used for the backing store for QMan Frame Queue Descriptor (FQD) and Packed Frame Descriptor Record (PFDR). -This memory is reserved/allocated as a nodes under the /reserved-memory node +This memory is reserved/allocated as a node under the /reserved-memory node. + +For additional details about reserved memory regions see reserved-memory.txt The QMan FQD memory node must be named "qman-fqd" @@ -83,7 +91,9 @@ PROPERTIES - compatible Usage: required Value type: - Definition: Must inclide "fsl,qman-fqd" + Definition: PPC platforms: Must include "fsl,qman-fqd" + ARM platforms: Must include "shared-dma-pool" + as well as the "no-map" property The QMan PFDR memory node must be named "qman-pfdr" @@ -92,7 +102,9 @@ PROPERTIES - compatible Usage: required Value type: - Definition: Must inclide "fsl,qman-pfdr" + Definition: PPC platforms: Must include "fsl,qman-pfdr" + ARM platforms: Must include "shared-dma-pool" + as well as the "no-map" property The following constraints are relevant to the FQD and PFDR private memory: - The size must be 2^(size + 1), with size = 11..29. That is 4 KiB to @@ -117,16 +129,16 @@ The example below shows a QMan FQD and a PFDR dynamic allocation memory nodes ranges; qman_fqd: qman-fqd { - compatible = "fsl,qman-fqd"; - alloc-ranges = <0 0 0x10 0>; + compatible = "shared-dma-pool"; size = <0 0x400000>; alignment = <0 0x400000>; + no-map; }; qman_pfdr: qman-pfdr { - compatible = "fsl,qman-pfdr"; - alloc-ranges = <0 0 0x10 0>; + compatible = "shared-dma-pool"; size = <0 0x2000000>; alignment = <0 0x2000000>; + no-map; }; }; -- cgit v1.2.3 From b69116cd96ec641168ced9460675360fa6df84c8 Mon Sep 17 00:00:00 2001 From: Icenowy Zheng Date: Tue, 22 Aug 2017 13:23:20 +0800 Subject: dt-bindings: add compatible string for Allwinner V3s SoC The compatible string for Allwinner V3s SoC used to be missing. Add it to the binding document. Fixes: b074fede01c0 ("arm: sunxi: add support for V3s SoC") Acked-by: Rob Herring Signed-off-by: Icenowy Zheng Signed-off-by: Maxime Ripard --- Documentation/devicetree/bindings/arm/sunxi.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/sunxi.txt b/Documentation/devicetree/bindings/arm/sunxi.txt index d2c46449b4eb..f35c6ada5a65 100644 --- a/Documentation/devicetree/bindings/arm/sunxi.txt +++ b/Documentation/devicetree/bindings/arm/sunxi.txt @@ -14,6 +14,7 @@ using one of the following compatible strings: allwinner,sun8i-a83t allwinner,sun8i-h2-plus allwinner,sun8i-h3 + allwinner,sun8i-v3s allwinner,sun9i-a80 allwinner,sun50i-a64 nextthing,gr8 -- cgit v1.2.3 From 9e8dda2df7cc209d0165618e6d18b324c02c8348 Mon Sep 17 00:00:00 2001 From: Icenowy Zheng Date: Tue, 22 Aug 2017 13:23:21 +0800 Subject: ARM: sunxi: fix the core number of V3s in sunxi README The Allwinner V3s SoC is not quad-core, but single-core. Fix this in the README file. Fixes: b074fede01c0 ("arm: sunxi: add support for V3s SoC") Signed-off-by: Icenowy Zheng Signed-off-by: Maxime Ripard --- Documentation/arm/sunxi/README | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/arm/sunxi/README b/Documentation/arm/sunxi/README index d7b1f016bd62..de791e18ccef 100644 --- a/Documentation/arm/sunxi/README +++ b/Documentation/arm/sunxi/README @@ -33,6 +33,11 @@ SunXi family - Next Thing Co GR8 (sun5i) + * Single ARM Cortex-A7 based SoCs + - Allwinner V3s (sun8i) + + Datasheet + http://linux-sunxi.org/File:Allwinner_V3s_Datasheet_V1.0.pdf + * Dual ARM Cortex-A7 based SoCs - Allwinner A20 (sun7i) + User Manual @@ -71,10 +76,6 @@ SunXi family + Datasheet http://dl.linux-sunxi.org/H3/Allwinner_H3_Datasheet_V1.0.pdf - - Allwinner V3s (sun8i) - + Datasheet - http://linux-sunxi.org/File:Allwinner_V3s_Datasheet_V1.0.pdf - * Quad ARM Cortex-A15, Quad ARM Cortex-A7 based SoCs - Allwinner A80 + Datasheet -- cgit v1.2.3 From 14e25a03682f7ca0464ac7e3f3f10f02d885fed4 Mon Sep 17 00:00:00 2001 From: Icenowy Zheng Date: Tue, 22 Aug 2017 13:23:22 +0800 Subject: ARM: sunxi: add support for R40 SoC Allwinner R40 is a new SoC, with Quad Core Cortex-A7 and peripherals like A20. Add support for it. Signed-off-by: Icenowy Zheng Signed-off-by: Maxime Ripard --- Documentation/arm/sunxi/README | 6 ++++++ Documentation/devicetree/bindings/arm/sunxi.txt | 1 + arch/arm/mach-sunxi/sunxi.c | 1 + 3 files changed, 8 insertions(+) (limited to 'Documentation') diff --git a/Documentation/arm/sunxi/README b/Documentation/arm/sunxi/README index de791e18ccef..f8efc21998bf 100644 --- a/Documentation/arm/sunxi/README +++ b/Documentation/arm/sunxi/README @@ -76,6 +76,12 @@ SunXi family + Datasheet http://dl.linux-sunxi.org/H3/Allwinner_H3_Datasheet_V1.0.pdf + - Allwinner R40 (sun8i) + + Datasheet + https://github.com/tinalinux/docs/raw/r40-v1.y/R40_Datasheet_V1.0.pdf + + User Manual + https://github.com/tinalinux/docs/raw/r40-v1.y/Allwinner_R40_User_Manual_V1.0.pdf + * Quad ARM Cortex-A15, Quad ARM Cortex-A7 based SoCs - Allwinner A80 + Datasheet diff --git a/Documentation/devicetree/bindings/arm/sunxi.txt b/Documentation/devicetree/bindings/arm/sunxi.txt index f35c6ada5a65..e4beec3d9ad3 100644 --- a/Documentation/devicetree/bindings/arm/sunxi.txt +++ b/Documentation/devicetree/bindings/arm/sunxi.txt @@ -14,6 +14,7 @@ using one of the following compatible strings: allwinner,sun8i-a83t allwinner,sun8i-h2-plus allwinner,sun8i-h3 + allwinner-sun8i-r40 allwinner,sun8i-v3s allwinner,sun9i-a80 allwinner,sun50i-a64 diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c index 7ab353fb25f2..5e9602ce1573 100644 --- a/arch/arm/mach-sunxi/sunxi.c +++ b/arch/arm/mach-sunxi/sunxi.c @@ -65,6 +65,7 @@ static const char * const sun8i_board_dt_compat[] = { "allwinner,sun8i-a83t", "allwinner,sun8i-h2-plus", "allwinner,sun8i-h3", + "allwinner,sun8i-r40", "allwinner,sun8i-v3s", NULL, }; -- cgit v1.2.3 From 9a59d9361a68b0f664372312debd7396eda3ed55 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 18 Sep 2017 06:26:03 -0400 Subject: media: cec-ioc-dqevent.rst: fix typo The documentation talked about INITIAL_VALUE when the actual define is INITIAL_STATE. Fix this. Signed-off-by: Hans Verkuil Reported-by: Jonas Karlman Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/cec.h.rst.exceptions | 2 -- Documentation/media/uapi/cec/cec-ioc-dqevent.rst | 4 ++-- 2 files changed, 2 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/media/cec.h.rst.exceptions b/Documentation/media/cec.h.rst.exceptions index b1687532742f..d9fd092de6f8 100644 --- a/Documentation/media/cec.h.rst.exceptions +++ b/Documentation/media/cec.h.rst.exceptions @@ -24,8 +24,6 @@ ignore define CEC_VENDOR_ID_NONE ignore define CEC_MODE_INITIATOR_MSK ignore define CEC_MODE_FOLLOWER_MSK -ignore define CEC_EVENT_FL_INITIAL_STATE - # Part of CEC 2.0 spec - shouldn't be documented too? ignore define CEC_LOG_ADDR_TV ignore define CEC_LOG_ADDR_RECORD_1 diff --git a/Documentation/media/uapi/cec/cec-ioc-dqevent.rst b/Documentation/media/uapi/cec/cec-ioc-dqevent.rst index a5c821809cc6..4fe96e2adf4c 100644 --- a/Documentation/media/uapi/cec/cec-ioc-dqevent.rst +++ b/Documentation/media/uapi/cec/cec-ioc-dqevent.rst @@ -172,9 +172,9 @@ it is guaranteed that the state did change in between the two events. :stub-columns: 0 :widths: 3 1 8 - * .. _`CEC-EVENT-FL-INITIAL-VALUE`: + * .. _`CEC-EVENT-FL-INITIAL-STATE`: - - ``CEC_EVENT_FL_INITIAL_VALUE`` + - ``CEC_EVENT_FL_INITIAL_STATE`` - 1 - Set for the initial events that are generated when the device is opened. See the table above for which events do this. This allows -- cgit v1.2.3 From da634f623e4879d7716029a84791fc596ebac24d Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 18 Sep 2017 05:23:57 -0400 Subject: media: cec-core.rst/cec-ioc-receive.rst: clarify CEC_TX_STATUS_ERROR CEC_TX_STATUS_ERROR can be used if the HW cannot tell LOST_ARB and LOW_DRIVE apart, or when some other error occurs. It is not a replacement for NACK. So the hardware must be able to tell the difference between OK, NACK and 'something else'. Clarify the documentation (both public and kernel API) on this point. Also fix two small typos (this messages -> this message). Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/kapi/cec-core.rst | 7 +++++-- Documentation/media/uapi/cec/cec-ioc-receive.rst | 10 +++++----- 2 files changed, 10 insertions(+), 7 deletions(-) (limited to 'Documentation') diff --git a/Documentation/media/kapi/cec-core.rst b/Documentation/media/kapi/cec-core.rst index 28866259998c..d37e107f2fde 100644 --- a/Documentation/media/kapi/cec-core.rst +++ b/Documentation/media/kapi/cec-core.rst @@ -227,8 +227,8 @@ CEC_TX_STATUS_LOW_DRIVE: retransmission. CEC_TX_STATUS_ERROR: - some unspecified error occurred: this can be one of - the previous two if the hardware cannot differentiate or something + some unspecified error occurred: this can be one of ARB_LOST + or LOW_DRIVE if the hardware cannot differentiate or something else entirely. CEC_TX_STATUS_MAX_RETRIES: @@ -238,6 +238,9 @@ CEC_TX_STATUS_MAX_RETRIES: doesn't have to make another attempt to transmit the message since the hardware did that already. +The hardware must be able to differentiate between OK, NACK and 'something +else'. + The \*_cnt arguments are the number of error conditions that were seen. This may be 0 if no information is available. Drivers that do not support hardware retry can just set the counter corresponding to the transmit error diff --git a/Documentation/media/uapi/cec/cec-ioc-receive.rst b/Documentation/media/uapi/cec/cec-ioc-receive.rst index 0f397c535a4c..bdad4b197bcd 100644 --- a/Documentation/media/uapi/cec/cec-ioc-receive.rst +++ b/Documentation/media/uapi/cec/cec-ioc-receive.rst @@ -131,7 +131,7 @@ View On' messages from initiator 0xf ('Unregistered') to destination 0 ('TV'). - ``tx_status`` - The status bits of the transmitted message. See :ref:`cec-tx-status` for the possible status values. It is 0 if - this messages was received, not transmitted. + this message was received, not transmitted. * - __u8 - ``msg[16]`` - The message payload. For :ref:`ioctl CEC_TRANSMIT ` this is filled in by the @@ -168,7 +168,7 @@ View On' messages from initiator 0xf ('Unregistered') to destination 0 ('TV'). - ``tx_status`` - The status bits of the transmitted message. See :ref:`cec-tx-status` for the possible status values. It is 0 if - this messages was received, not transmitted. + this message was received, not transmitted. * - __u8 - ``tx_arb_lost_cnt`` - A counter of the number of transmit attempts that resulted in the @@ -256,9 +256,9 @@ View On' messages from initiator 0xf ('Unregistered') to destination 0 ('TV'). - ``CEC_TX_STATUS_ERROR`` - 0x10 - Some error occurred. This is used for any errors that do not fit - the previous two, either because the hardware could not tell which - error occurred, or because the hardware tested for other - conditions besides those two. + ``CEC_TX_STATUS_ARB_LOST`` or ``CEC_TX_STATUS_LOW_DRIVE``, either because + the hardware could not tell which error occurred, or because the hardware + tested for other conditions besides those two. * .. _`CEC-TX-STATUS-MAX-RETRIES`: - ``CEC_TX_STATUS_MAX_RETRIES`` -- cgit v1.2.3 From 00f7adff0c3a1d793ffa213c28d82c47dfd8ab04 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 30 Aug 2017 12:05:55 -0400 Subject: media: cec-ioc-dqevent.rst: document new CEC_EVENT_PIN_HPD_LOW/HIGH events Document these new CEC events. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/uapi/cec/cec-ioc-dqevent.rst | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'Documentation') diff --git a/Documentation/media/uapi/cec/cec-ioc-dqevent.rst b/Documentation/media/uapi/cec/cec-ioc-dqevent.rst index 4fe96e2adf4c..b6fd86424fbb 100644 --- a/Documentation/media/uapi/cec/cec-ioc-dqevent.rst +++ b/Documentation/media/uapi/cec/cec-ioc-dqevent.rst @@ -161,6 +161,24 @@ it is guaranteed that the state did change in between the two events. - Generated if the CEC pin goes from a low voltage to a high voltage. Only applies to adapters that have the ``CEC_CAP_MONITOR_PIN`` capability set. + * .. _`CEC-EVENT-PIN-HPD-LOW`: + + - ``CEC_EVENT_PIN_HPD_LOW`` + - 5 + - Generated if the HPD pin goes from a high voltage to a low voltage. + Only applies to adapters that have the ``CEC_CAP_MONITOR_PIN`` + capability set. When open() is called, the HPD pin can be read and + if the HPD is low, then an initial event will be generated for that + filehandle. + * .. _`CEC-EVENT-PIN-HPD-HIGH`: + + - ``CEC_EVENT_PIN_HPD_HIGH`` + - 6 + - Generated if the HPD pin goes from a low voltage to a high voltage. + Only applies to adapters that have the ``CEC_CAP_MONITOR_PIN`` + capability set. When open() is called, the HPD pin can be read and + if the HPD is high, then an initial event will be generated for that + filehandle. .. tabularcolumns:: |p{6.0cm}|p{0.6cm}|p{10.9cm}| -- cgit v1.2.3 From 67f2a06f14a9419bc2da0a8e6b440c6813dccdb0 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 2 Aug 2017 03:22:33 -0400 Subject: media: dt-bindings: document the CEC GPIO bindings Document the bindings for the cec-gpio module for hardware where the CEC line and optionally the HPD line are connected to GPIO lines. Signed-off-by: Hans Verkuil Reviewed-by: Linus Walleij Reviewed-by: Rob Herring Signed-off-by: Mauro Carvalho Chehab --- .../devicetree/bindings/media/cec-gpio.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/cec-gpio.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/cec-gpio.txt b/Documentation/devicetree/bindings/media/cec-gpio.txt new file mode 100644 index 000000000000..46a0bac8b3b9 --- /dev/null +++ b/Documentation/devicetree/bindings/media/cec-gpio.txt @@ -0,0 +1,32 @@ +* HDMI CEC GPIO driver + +The HDMI CEC GPIO module supports CEC implementations where the CEC line +is hooked up to a pull-up GPIO line and - optionally - the HPD line is +hooked up to another GPIO line. + +Required properties: + - compatible: value must be "cec-gpio". + - cec-gpios: gpio that the CEC line is connected to. The line should be + tagged as open drain. + +If the CEC line is associated with an HDMI receiver/transmitter, then the +following property is also required: + + - hdmi-phandle - phandle to the HDMI controller, see also cec.txt. + +If the CEC line is not associated with an HDMI receiver/transmitter, then +the following property is optional: + + - hpd-gpios: gpio that the HPD line is connected to. + +Example for the Raspberry Pi 3 where the CEC line is connected to +pin 26 aka BCM7 aka CE1 on the GPIO pin header and the HPD line is +connected to pin 11 aka BCM17: + +#include + +cec-gpio { + compatible = "cec-gpio"; + cec-gpios = <&gpio 7 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; + hpd-gpios = <&gpio 17 GPIO_ACTIVE_HIGH>; +}; -- cgit v1.2.3 From 104dc5e20ff52748a16f756ae946391bdc6a4d0a Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 20 Sep 2017 02:26:00 +0200 Subject: PM: Document rules on using pm_runtime_resume() in system suspend callbacks It quite often is necessary to resume devices from runtime suspend during system suspend for various reasons (for example, if their wakeup settings need to be changed), but that requires middle-layer or subsystem code to follow additional rules which currently are not clearly documented. Namely, if a driver calls pm_runtime_resume() for the device from its ->suspend (or equivalent) system sleep callback, that may not work if the middle layer above it has updated the state of the device from its ->prepare or ->suspend callbacks already in an incompatible way. For this reason, all middle layers must follow the rule that, until the ->suspend callback provided by the device's driver is invoked, the only way in which the device's state can be updated is by calling pm_runtime_resume() for it, if necessary. Fortunately enough, all middle layers in the code base today follow this rule, but it is not explicitly stated anywhere, so do that. Note that calling pm_runtime_resume() from the ->suspend callback of a driver will cause the ->runtime_resume callback provided by the middle layer to be invoked, but the rule above guarantees that this callback will nest properly with the middle layer's ->suspend callback and it will play well with the ->prepare one invoked before. Signed-off-by: Rafael J. Wysocki Reviewed-by: Ulf Hansson --- Documentation/driver-api/pm/devices.rst | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst index bedd32388dac..a8b07ec732bd 100644 --- a/Documentation/driver-api/pm/devices.rst +++ b/Documentation/driver-api/pm/devices.rst @@ -328,7 +328,10 @@ the phases are: ``prepare``, ``suspend``, ``suspend_late``, ``suspend_noirq``. After the ``->prepare`` callback method returns, no new children may be registered below the device. The method may also prepare the device or driver in some way for the upcoming system power transition, but it - should not put the device into a low-power state. + should not put the device into a low-power state. Moreover, if the + device supports runtime power management, the ``->prepare`` callback + method must not update its state in case it is necessary to resume it + from runtime suspend later on. For devices supporting runtime power management, the return value of the prepare callback can be used to indicate to the PM core that it may @@ -356,6 +359,16 @@ the phases are: ``prepare``, ``suspend``, ``suspend_late``, ``suspend_noirq``. the appropriate low-power state, depending on the bus type the device is on, and they may enable wakeup events. + However, for devices supporting runtime power management, the + ``->suspend`` methods provided by subsystems (bus types and PM domains + in particular) must follow an additional rule regarding what can be done + to the devices before their drivers' ``->suspend`` methods are called. + Namely, they can only resume the devices from runtime suspend by + calling :c:func:`pm_runtime_resume` for them, if that is necessary, and + they must not update the state of the devices in any other way at that + time (in case the drivers need to resume the devices from runtime + suspend in their ``->suspend`` methods). + 3. For a number of devices it is convenient to split suspend into the "quiesce device" and "save device state" phases, in which cases ``suspend_late`` is meant to do the latter. It is always executed after @@ -729,6 +742,16 @@ state temporarily, for example so that its system wakeup capability can be disabled. This all depends on the hardware and the design of the subsystem and device driver in question. +If it is necessary to resume a device from runtime suspend during a system-wide +transition into a sleep state, that can be done by calling +:c:func:`pm_runtime_resume` for it from the ``->suspend`` callback (or its +couterpart for transitions related to hibernation) of either the device's driver +or a subsystem responsible for it (for example, a bus type or a PM domain). +That is guaranteed to work by the requirement that subsystems must not change +the state of devices (possibly except for resuming them from runtime suspend) +from their ``->prepare`` and ``->suspend`` callbacks (or equivalent) *before* +invoking device drivers' ``->suspend`` callbacks (or equivalent). + During system-wide resume from a sleep state it's easiest to put devices into the full-power state, as explained in :file:`Documentation/power/runtime_pm.txt`. Refer to that document for more information regarding this particular issue as -- cgit v1.2.3 From fd060b3cd585542b44335d9169c71ce40b6384ac Mon Sep 17 00:00:00 2001 From: Lukas Wunner Date: Sat, 9 Sep 2017 20:32:41 +0200 Subject: dt-bindings: iio: adc: mcp320x: Update for mcp3550/1/3 All chips supported by this driver clock data out on the falling edge and latch data in on the rising edge, hence SPI mode (0,0) or (1,1) must be used. Furthermore, none of the chips has an internal reference voltage regulator, so an external supply is always required and needs to be specified in the device tree lest the IIO "scale" in sysfs cannot be calculated. Document these requirements in the device tree binding, add compatible strings for the newly supported mcp3550/1/3 and explain that SPI mode (0,0) should be preferred for these chips. Cc: Mathias Duckeck Signed-off-by: Lukas Wunner Acked-by: Rob Herring Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/adc/mcp320x.txt | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/adc/mcp320x.txt b/Documentation/devicetree/bindings/iio/adc/mcp320x.txt index bcd3ac8e6e0c..7d64753df949 100644 --- a/Documentation/devicetree/bindings/iio/adc/mcp320x.txt +++ b/Documentation/devicetree/bindings/iio/adc/mcp320x.txt @@ -29,15 +29,29 @@ Required properties: "microchip,mcp3204" "microchip,mcp3208" "microchip,mcp3301" + "microchip,mcp3550-50" + "microchip,mcp3550-60" + "microchip,mcp3551" + "microchip,mcp3553" NOTE: The use of the compatibles with no vendor prefix is deprecated and only listed because old DT use them. + - spi-cpha, spi-cpol (boolean): + Either SPI mode (0,0) or (1,1) must be used, so specify + none or both of spi-cpha, spi-cpol. The MCP3550/1/3 + is more efficient in mode (1,1) as only 3 instead of + 4 bytes need to be read from the ADC, but not all SPI + masters support it. + + - vref-supply: Phandle to the external reference voltage supply. + Examples: spi_controller { mcp3x0x@0 { compatible = "mcp3002"; reg = <0>; spi-max-frequency = <1000000>; + vref-supply = <&vref_reg>; }; }; -- cgit v1.2.3 From 4d354feffff16499464d57501c034657499eee97 Mon Sep 17 00:00:00 2001 From: Zhiyong Tao Date: Thu, 21 Sep 2017 09:26:50 +0800 Subject: dt-bindings: adc: mt2712: add binding documention The commit adds mt2712 compatible node in binding document. Signed-off-by: Zhiyong Tao Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt b/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt index 64dc4843c180..0df9befdaecc 100644 --- a/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt +++ b/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt @@ -12,6 +12,7 @@ for the Thermal Controller which holds a phandle to the AUXADC. Required properties: - compatible: Should be one of: - "mediatek,mt2701-auxadc": For MT2701 family of SoCs + - "mediatek,mt2712-auxadc": For MT2712 family of SoCs - "mediatek,mt7622-auxadc": For MT7622 family of SoCs - "mediatek,mt8173-auxadc": For MT8173 family of SoCs - reg: Address range of the AUXADC unit. -- cgit v1.2.3 From 2e931b06de97d762ef139bffbbe75e1483735734 Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Thu, 21 Sep 2017 11:44:59 +0200 Subject: ARM: shmobile: remove inconsistent ; from documentation Consistently do not suffix compat string documentation with a ';' Signed-off-by: Simon Horman Acked-by: Geert Uytterhoeven --- Documentation/devicetree/bindings/arm/shmobile.txt | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/shmobile.txt b/Documentation/devicetree/bindings/arm/shmobile.txt index 4fa984ada912..020d758fc0c5 100644 --- a/Documentation/devicetree/bindings/arm/shmobile.txt +++ b/Documentation/devicetree/bindings/arm/shmobile.txt @@ -69,7 +69,7 @@ Boards: compatible = "renesas,gose", "renesas,r8a7793" - H3ULCB (R-Car Starter Kit Premier, RTP0RC7795SKBX0010SA00 (H3 ES1.1)) H3ULCB (R-Car Starter Kit Premier, RTP0RC77951SKBX010SA00 (H3 ES2.0)) - compatible = "renesas,h3ulcb", "renesas,r8a7795"; + compatible = "renesas,h3ulcb", "renesas,r8a7795" - Henninger compatible = "renesas,henninger", "renesas,r8a7791" - iWave Systems RZ/G1E SODIMM SOM Development Platform (iW-RainboW-G22D) @@ -91,7 +91,7 @@ Boards: - Lager (RTP0RC7790SEB00010S) compatible = "renesas,lager", "renesas,r8a7790" - M3ULCB (R-Car Starter Kit Pro, RTP0RC7796SKBX0010SA09 (M3 ES1.0)) - compatible = "renesas,m3ulcb", "renesas,r8a7796"; + compatible = "renesas,m3ulcb", "renesas,r8a7796" - Marzen (R0P7779A00010S) compatible = "renesas,marzen", "renesas,r8a7779" - Porter (M2-LCDP) @@ -99,11 +99,11 @@ Boards: - RSKRZA1 (YR0K77210C000BE) compatible = "renesas,rskrza1", "renesas,r7s72100" - Salvator-X (RTP0RC7795SIPB0010S) - compatible = "renesas,salvator-x", "renesas,r8a7795"; + compatible = "renesas,salvator-x", "renesas,r8a7795" - Salvator-X (RTP0RC7796SIPB0011S) - compatible = "renesas,salvator-x", "renesas,r8a7796"; + compatible = "renesas,salvator-x", "renesas,r8a7796" - Salvator-XS (Salvator-X 2nd version, RTP0RC7795SIPB0012S) - compatible = "renesas,salvator-xs", "renesas,r8a7795"; + compatible = "renesas,salvator-xs", "renesas,r8a7795" - SILK (RTP0RC7794LCB00011S) compatible = "renesas,silk", "renesas,r8a7794" - SK-RZG1E (YR8A77450S000BE) -- cgit v1.2.3 From 041cd640b2f3c5607171c59d8712b503659d21f7 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 25 Sep 2017 08:12:05 -0700 Subject: cgroup: Implement cgroup2 basic CPU usage accounting In cgroup1, while cpuacct isn't actually controlling any resources, it is a separate controller due to combination of two factors - 1. enabling cpu controller has significant side effects, and 2. we have to pick one of the hierarchies to account CPU usages on. cpuacct controller is effectively used to designate a hierarchy to track CPU usages on. cgroup2's unified hierarchy removes the second reason and we can account basic CPU usages by default. While we can use cpuacct for this purpose, both its interface and implementation leave a lot to be desired - it collects and exposes two sources of truth which don't agree with each other and some of the exposed statistics don't make much sense. Also, it propagates all the way up the hierarchy on each accounting event which is unnecessary. This patch adds basic resource accounting mechanism to cgroup2's unified hierarchy and accounts CPU usages using it. * All accountings are done per-cpu and don't propagate immediately. It just bumps the per-cgroup per-cpu counters and links to the parent's updated list if not already on it. * On a read, the per-cpu counters are collected into the global ones and then propagated upwards. Only the per-cpu counters which have changed since the last read are propagated. * CPU usage stats are collected and shown in "cgroup.stat" with "cpu." prefix. Total usage is collected from scheduling events. User/sys breakdown is sourced from tick sampling and adjusted to the usage using cputime_adjust(). This keeps the accounting side hot path O(1) and per-cpu and the read side O(nr_updated_since_last_read). v2: Minor changes and documentation updates as suggested by Waiman and Roman. Signed-off-by: Tejun Heo Acked-by: Peter Zijlstra Cc: Ingo Molnar Cc: Li Zefan Cc: Johannes Weiner Cc: Waiman Long Cc: Roman Gushchin --- Documentation/cgroup-v2.txt | 9 ++ include/linux/cgroup-defs.h | 57 +++++++ include/linux/cgroup.h | 22 +++ kernel/cgroup/Makefile | 2 +- kernel/cgroup/cgroup-internal.h | 8 + kernel/cgroup/cgroup.c | 24 ++- kernel/cgroup/stat.c | 334 ++++++++++++++++++++++++++++++++++++++++ 7 files changed, 453 insertions(+), 3 deletions(-) create mode 100644 kernel/cgroup/stat.c (limited to 'Documentation') diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt index dc44785dc0fa..3f8216912df0 100644 --- a/Documentation/cgroup-v2.txt +++ b/Documentation/cgroup-v2.txt @@ -886,6 +886,15 @@ All cgroup core files are prefixed with "cgroup." A dying cgroup can consume system resources not exceeding limits, which were active at the moment of cgroup deletion. + cpu.usage_usec + CPU time consumed in the subtree. + + cpu.user_usec + User CPU time consumed in the subtree. + + cpu.system_usec + System CPU time consumed in the subtree. + Controllers =========== diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index ade4a78a54c2..3e55bbd31ad1 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -16,6 +16,7 @@ #include #include #include +#include #include #include @@ -254,6 +255,57 @@ struct css_set { struct rcu_head rcu_head; }; +/* + * cgroup basic resource usage statistics. Accounting is done per-cpu in + * cgroup_cpu_stat which is then lazily propagated up the hierarchy on + * reads. + * + * When a stat gets updated, the cgroup_cpu_stat and its ancestors are + * linked into the updated tree. On the following read, propagation only + * considers and consumes the updated tree. This makes reading O(the + * number of descendants which have been active since last read) instead of + * O(the total number of descendants). + * + * This is important because there can be a lot of (draining) cgroups which + * aren't active and stat may be read frequently. The combination can + * become very expensive. By propagating selectively, increasing reading + * frequency decreases the cost of each read. + */ +struct cgroup_cpu_stat { + /* + * ->sync protects all the current counters. These are the only + * fields which get updated in the hot path. + */ + struct u64_stats_sync sync; + struct task_cputime cputime; + + /* + * Snapshots at the last reading. These are used to calculate the + * deltas to propagate to the global counters. + */ + struct task_cputime last_cputime; + + /* + * Child cgroups with stat updates on this cpu since the last read + * are linked on the parent's ->updated_children through + * ->updated_next. + * + * In addition to being more compact, singly-linked list pointing + * to the cgroup makes it unnecessary for each per-cpu struct to + * point back to the associated cgroup. + * + * Protected by per-cpu cgroup_cpu_stat_lock. + */ + struct cgroup *updated_children; /* terminated by self cgroup */ + struct cgroup *updated_next; /* NULL iff not on the list */ +}; + +struct cgroup_stat { + /* per-cpu statistics are collected into the folowing global counters */ + struct task_cputime cputime; + struct prev_cputime prev_cputime; +}; + struct cgroup { /* self css with NULL ->ss, points back to this cgroup */ struct cgroup_subsys_state self; @@ -353,6 +405,11 @@ struct cgroup { */ struct cgroup *dom_cgrp; + /* cgroup basic resource statistics */ + struct cgroup_cpu_stat __percpu *cpu_stat; + struct cgroup_stat pending_stat; /* pending from children */ + struct cgroup_stat stat; + /* * list of pidlists, up to two for each namespace (one for procs, one * for tasks); created on demand. diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 6cd579329310..328a70ce0e23 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -703,17 +703,39 @@ static inline void cpuacct_account_field(struct task_struct *tsk, int index, u64 val) {} #endif +void cgroup_stat_show_cputime(struct seq_file *seq, const char *prefix); + +void __cgroup_account_cputime(struct cgroup *cgrp, u64 delta_exec); +void __cgroup_account_cputime_field(struct cgroup *cgrp, + enum cpu_usage_stat index, u64 delta_exec); + static inline void cgroup_account_cputime(struct task_struct *task, u64 delta_exec) { + struct cgroup *cgrp; + cpuacct_charge(task, delta_exec); + + rcu_read_lock(); + cgrp = task_dfl_cgroup(task); + if (cgroup_parent(cgrp)) + __cgroup_account_cputime(cgrp, delta_exec); + rcu_read_unlock(); } static inline void cgroup_account_cputime_field(struct task_struct *task, enum cpu_usage_stat index, u64 delta_exec) { + struct cgroup *cgrp; + cpuacct_account_field(task, index, delta_exec); + + rcu_read_lock(); + cgrp = task_dfl_cgroup(task); + if (cgroup_parent(cgrp)) + __cgroup_account_cputime_field(cgrp, index, delta_exec); + rcu_read_unlock(); } #else /* CONFIG_CGROUPS */ diff --git a/kernel/cgroup/Makefile b/kernel/cgroup/Makefile index ce693ccb8c58..0acee616e06c 100644 --- a/kernel/cgroup/Makefile +++ b/kernel/cgroup/Makefile @@ -1,4 +1,4 @@ -obj-y := cgroup.o namespace.o cgroup-v1.o +obj-y := cgroup.o stat.o namespace.o cgroup-v1.o obj-$(CONFIG_CGROUP_FREEZER) += freezer.o obj-$(CONFIG_CGROUP_PIDS) += pids.o diff --git a/kernel/cgroup/cgroup-internal.h b/kernel/cgroup/cgroup-internal.h index 5151ff256c29..fa642c99586a 100644 --- a/kernel/cgroup/cgroup-internal.h +++ b/kernel/cgroup/cgroup-internal.h @@ -199,6 +199,14 @@ int cgroup_show_path(struct seq_file *sf, struct kernfs_node *kf_node, int cgroup_task_count(const struct cgroup *cgrp); +/* + * stat.c + */ +void cgroup_stat_flush(struct cgroup *cgrp); +int cgroup_stat_init(struct cgroup *cgrp); +void cgroup_stat_exit(struct cgroup *cgrp); +void cgroup_stat_boot(void); + /* * namespace.c */ diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index d6551cd45238..d036625556c9 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -142,12 +142,14 @@ static struct static_key_true *cgroup_subsys_on_dfl_key[] = { }; #undef SUBSYS +static DEFINE_PER_CPU(struct cgroup_cpu_stat, cgrp_dfl_root_cpu_stat); + /* * The default hierarchy, reserved for the subsystems that are otherwise * unattached - it never has more than a single cgroup, and all tasks are * part of that cgroup. */ -struct cgroup_root cgrp_dfl_root; +struct cgroup_root cgrp_dfl_root = { .cgrp.cpu_stat = &cgrp_dfl_root_cpu_stat }; EXPORT_SYMBOL_GPL(cgrp_dfl_root); /* @@ -3301,6 +3303,8 @@ static int cgroup_stat_show(struct seq_file *seq, void *v) seq_printf(seq, "nr_dying_descendants %d\n", cgroup->nr_dying_descendants); + cgroup_stat_show_cputime(seq, "cpu."); + return 0; } @@ -4471,6 +4475,8 @@ static void css_free_work_fn(struct work_struct *work) */ cgroup_put(cgroup_parent(cgrp)); kernfs_put(cgrp->kn); + if (cgroup_on_dfl(cgrp)) + cgroup_stat_exit(cgrp); kfree(cgrp); } else { /* @@ -4515,6 +4521,9 @@ static void css_release_work_fn(struct work_struct *work) /* cgroup release path */ trace_cgroup_release(cgrp); + if (cgroup_on_dfl(cgrp)) + cgroup_stat_flush(cgrp); + for (tcgrp = cgroup_parent(cgrp); tcgrp; tcgrp = cgroup_parent(tcgrp)) tcgrp->nr_dying_descendants--; @@ -4698,6 +4707,12 @@ static struct cgroup *cgroup_create(struct cgroup *parent) if (ret) goto out_free_cgrp; + if (cgroup_on_dfl(parent)) { + ret = cgroup_stat_init(cgrp); + if (ret) + goto out_cancel_ref; + } + /* * Temporarily set the pointer to NULL, so idr_find() won't return * a half-baked cgroup. @@ -4705,7 +4720,7 @@ static struct cgroup *cgroup_create(struct cgroup *parent) cgrp->id = cgroup_idr_alloc(&root->cgroup_idr, NULL, 2, 0, GFP_KERNEL); if (cgrp->id < 0) { ret = -ENOMEM; - goto out_cancel_ref; + goto out_stat_exit; } init_cgroup_housekeeping(cgrp); @@ -4754,6 +4769,9 @@ static struct cgroup *cgroup_create(struct cgroup *parent) return cgrp; +out_stat_exit: + if (cgroup_on_dfl(parent)) + cgroup_stat_exit(cgrp); out_cancel_ref: percpu_ref_exit(&cgrp->self.refcnt); out_free_cgrp: @@ -5148,6 +5166,8 @@ int __init cgroup_init(void) BUG_ON(cgroup_init_cftypes(NULL, cgroup_base_files)); BUG_ON(cgroup_init_cftypes(NULL, cgroup1_base_files)); + cgroup_stat_boot(); + /* * The latency of the synchronize_sched() is too high for cgroups, * avoid it at the cost of forcing all readers into the slow path. diff --git a/kernel/cgroup/stat.c b/kernel/cgroup/stat.c new file mode 100644 index 000000000000..9cce79e89320 --- /dev/null +++ b/kernel/cgroup/stat.c @@ -0,0 +1,334 @@ +#include "cgroup-internal.h" + +#include + +static DEFINE_MUTEX(cgroup_stat_mutex); +static DEFINE_PER_CPU(raw_spinlock_t, cgroup_cpu_stat_lock); + +static struct cgroup_cpu_stat *cgroup_cpu_stat(struct cgroup *cgrp, int cpu) +{ + return per_cpu_ptr(cgrp->cpu_stat, cpu); +} + +/** + * cgroup_cpu_stat_updated - keep track of updated cpu_stat + * @cgrp: target cgroup + * @cpu: cpu on which cpu_stat was updated + * + * @cgrp's cpu_stat on @cpu was updated. Put it on the parent's matching + * cpu_stat->updated_children list. See the comment on top of + * cgroup_cpu_stat definition for details. + */ +static void cgroup_cpu_stat_updated(struct cgroup *cgrp, int cpu) +{ + raw_spinlock_t *cpu_lock = per_cpu_ptr(&cgroup_cpu_stat_lock, cpu); + struct cgroup *parent; + unsigned long flags; + + /* + * Speculative already-on-list test. This may race leading to + * temporary inaccuracies, which is fine. + * + * Because @parent's updated_children is terminated with @parent + * instead of NULL, we can tell whether @cgrp is on the list by + * testing the next pointer for NULL. + */ + if (cgroup_cpu_stat(cgrp, cpu)->updated_next) + return; + + raw_spin_lock_irqsave(cpu_lock, flags); + + /* put @cgrp and all ancestors on the corresponding updated lists */ + for (parent = cgroup_parent(cgrp); parent; + cgrp = parent, parent = cgroup_parent(cgrp)) { + struct cgroup_cpu_stat *cstat = cgroup_cpu_stat(cgrp, cpu); + struct cgroup_cpu_stat *pcstat = cgroup_cpu_stat(parent, cpu); + + /* + * Both additions and removals are bottom-up. If a cgroup + * is already in the tree, all ancestors are. + */ + if (cstat->updated_next) + break; + + cstat->updated_next = pcstat->updated_children; + pcstat->updated_children = cgrp; + } + + raw_spin_unlock_irqrestore(cpu_lock, flags); +} + +/** + * cgroup_cpu_stat_pop_updated - iterate and dismantle cpu_stat updated tree + * @pos: current position + * @root: root of the tree to traversal + * @cpu: target cpu + * + * Walks the udpated cpu_stat tree on @cpu from @root. %NULL @pos starts + * the traversal and %NULL return indicates the end. During traversal, + * each returned cgroup is unlinked from the tree. Must be called with the + * matching cgroup_cpu_stat_lock held. + * + * The only ordering guarantee is that, for a parent and a child pair + * covered by a given traversal, if a child is visited, its parent is + * guaranteed to be visited afterwards. + */ +static struct cgroup *cgroup_cpu_stat_pop_updated(struct cgroup *pos, + struct cgroup *root, int cpu) +{ + struct cgroup_cpu_stat *cstat; + struct cgroup *parent; + + if (pos == root) + return NULL; + + /* + * We're gonna walk down to the first leaf and visit/remove it. We + * can pick whatever unvisited node as the starting point. + */ + if (!pos) + pos = root; + else + pos = cgroup_parent(pos); + + /* walk down to the first leaf */ + while (true) { + cstat = cgroup_cpu_stat(pos, cpu); + if (cstat->updated_children == pos) + break; + pos = cstat->updated_children; + } + + /* + * Unlink @pos from the tree. As the updated_children list is + * singly linked, we have to walk it to find the removal point. + * However, due to the way we traverse, @pos will be the first + * child in most cases. The only exception is @root. + */ + parent = cgroup_parent(pos); + if (parent && cstat->updated_next) { + struct cgroup_cpu_stat *pcstat = cgroup_cpu_stat(parent, cpu); + struct cgroup_cpu_stat *ncstat; + struct cgroup **nextp; + + nextp = &pcstat->updated_children; + while (true) { + ncstat = cgroup_cpu_stat(*nextp, cpu); + if (*nextp == pos) + break; + + WARN_ON_ONCE(*nextp == parent); + nextp = &ncstat->updated_next; + } + + *nextp = cstat->updated_next; + cstat->updated_next = NULL; + } + + return pos; +} + +static void cgroup_stat_accumulate(struct cgroup_stat *dst_stat, + struct cgroup_stat *src_stat) +{ + dst_stat->cputime.utime += src_stat->cputime.utime; + dst_stat->cputime.stime += src_stat->cputime.stime; + dst_stat->cputime.sum_exec_runtime += src_stat->cputime.sum_exec_runtime; +} + +static void cgroup_cpu_stat_flush_one(struct cgroup *cgrp, int cpu) +{ + struct cgroup *parent = cgroup_parent(cgrp); + struct cgroup_cpu_stat *cstat = cgroup_cpu_stat(cgrp, cpu); + struct task_cputime *last_cputime = &cstat->last_cputime; + struct task_cputime cputime; + struct cgroup_stat delta; + unsigned seq; + + lockdep_assert_held(&cgroup_stat_mutex); + + /* fetch the current per-cpu values */ + do { + seq = __u64_stats_fetch_begin(&cstat->sync); + cputime = cstat->cputime; + } while (__u64_stats_fetch_retry(&cstat->sync, seq)); + + /* accumulate the deltas to propgate */ + delta.cputime.utime = cputime.utime - last_cputime->utime; + delta.cputime.stime = cputime.stime - last_cputime->stime; + delta.cputime.sum_exec_runtime = cputime.sum_exec_runtime - + last_cputime->sum_exec_runtime; + *last_cputime = cputime; + + /* transfer the pending stat into delta */ + cgroup_stat_accumulate(&delta, &cgrp->pending_stat); + memset(&cgrp->pending_stat, 0, sizeof(cgrp->pending_stat)); + + /* propagate delta into the global stat and the parent's pending */ + cgroup_stat_accumulate(&cgrp->stat, &delta); + if (parent) + cgroup_stat_accumulate(&parent->pending_stat, &delta); +} + +/* see cgroup_stat_flush() */ +static void cgroup_stat_flush_locked(struct cgroup *cgrp) +{ + int cpu; + + lockdep_assert_held(&cgroup_stat_mutex); + + for_each_possible_cpu(cpu) { + raw_spinlock_t *cpu_lock = per_cpu_ptr(&cgroup_cpu_stat_lock, cpu); + struct cgroup *pos = NULL; + + raw_spin_lock_irq(cpu_lock); + while ((pos = cgroup_cpu_stat_pop_updated(pos, cgrp, cpu))) + cgroup_cpu_stat_flush_one(pos, cpu); + raw_spin_unlock_irq(cpu_lock); + } +} + +/** + * cgroup_stat_flush - flush stats in @cgrp's subtree + * @cgrp: target cgroup + * + * Collect all per-cpu stats in @cgrp's subtree into the global counters + * and propagate them upwards. After this function returns, all cgroups in + * the subtree have up-to-date ->stat. + * + * This also gets all cgroups in the subtree including @cgrp off the + * ->updated_children lists. + */ +void cgroup_stat_flush(struct cgroup *cgrp) +{ + mutex_lock(&cgroup_stat_mutex); + cgroup_stat_flush_locked(cgrp); + mutex_unlock(&cgroup_stat_mutex); +} + +static struct cgroup_cpu_stat *cgroup_cpu_stat_account_begin(struct cgroup *cgrp) +{ + struct cgroup_cpu_stat *cstat; + + cstat = get_cpu_ptr(cgrp->cpu_stat); + u64_stats_update_begin(&cstat->sync); + return cstat; +} + +static void cgroup_cpu_stat_account_end(struct cgroup *cgrp, + struct cgroup_cpu_stat *cstat) +{ + u64_stats_update_end(&cstat->sync); + cgroup_cpu_stat_updated(cgrp, smp_processor_id()); + put_cpu_ptr(cstat); +} + +void __cgroup_account_cputime(struct cgroup *cgrp, u64 delta_exec) +{ + struct cgroup_cpu_stat *cstat; + + cstat = cgroup_cpu_stat_account_begin(cgrp); + cstat->cputime.sum_exec_runtime += delta_exec; + cgroup_cpu_stat_account_end(cgrp, cstat); +} + +void __cgroup_account_cputime_field(struct cgroup *cgrp, + enum cpu_usage_stat index, u64 delta_exec) +{ + struct cgroup_cpu_stat *cstat; + + cstat = cgroup_cpu_stat_account_begin(cgrp); + + switch (index) { + case CPUTIME_USER: + case CPUTIME_NICE: + cstat->cputime.utime += delta_exec; + break; + case CPUTIME_SYSTEM: + case CPUTIME_IRQ: + case CPUTIME_SOFTIRQ: + cstat->cputime.stime += delta_exec; + break; + default: + break; + } + + cgroup_cpu_stat_account_end(cgrp, cstat); +} + +void cgroup_stat_show_cputime(struct seq_file *seq, const char *prefix) +{ + struct cgroup *cgrp = seq_css(seq)->cgroup; + u64 usage, utime, stime; + + if (!cgroup_parent(cgrp)) + return; + + mutex_lock(&cgroup_stat_mutex); + + cgroup_stat_flush_locked(cgrp); + + usage = cgrp->stat.cputime.sum_exec_runtime; + cputime_adjust(&cgrp->stat.cputime, &cgrp->stat.prev_cputime, + &utime, &stime); + + mutex_unlock(&cgroup_stat_mutex); + + do_div(usage, NSEC_PER_USEC); + do_div(utime, NSEC_PER_USEC); + do_div(stime, NSEC_PER_USEC); + + seq_printf(seq, "%susage_usec %llu\n" + "%suser_usec %llu\n" + "%ssystem_usec %llu\n", + prefix, usage, prefix, utime, prefix, stime); +} + +int cgroup_stat_init(struct cgroup *cgrp) +{ + int cpu; + + /* the root cgrp has cpu_stat preallocated */ + if (!cgrp->cpu_stat) { + cgrp->cpu_stat = alloc_percpu(struct cgroup_cpu_stat); + if (!cgrp->cpu_stat) + return -ENOMEM; + } + + /* ->updated_children list is self terminated */ + for_each_possible_cpu(cpu) + cgroup_cpu_stat(cgrp, cpu)->updated_children = cgrp; + + prev_cputime_init(&cgrp->stat.prev_cputime); + + return 0; +} + +void cgroup_stat_exit(struct cgroup *cgrp) +{ + int cpu; + + cgroup_stat_flush(cgrp); + + /* sanity check */ + for_each_possible_cpu(cpu) { + struct cgroup_cpu_stat *cstat = cgroup_cpu_stat(cgrp, cpu); + + if (WARN_ON_ONCE(cstat->updated_children != cgrp) || + WARN_ON_ONCE(cstat->updated_next)) + return; + } + + free_percpu(cgrp->cpu_stat); + cgrp->cpu_stat = NULL; +} + +void __init cgroup_stat_boot(void) +{ + int cpu; + + for_each_possible_cpu(cpu) + raw_spin_lock_init(per_cpu_ptr(&cgroup_cpu_stat_lock, cpu)); + + BUG_ON(cgroup_stat_init(&cgrp_dfl_root.cgrp)); +} -- cgit v1.2.3 From 4702f4b23a2fc6196abacf515a959e69176da40e Mon Sep 17 00:00:00 2001 From: Fabrizio Castro Date: Mon, 25 Sep 2017 09:54:20 +0100 Subject: spi: sh-msiof: Add r8a774[35] to the compatible list Signed-off-by: Fabrizio Castro Reviewed-by: Geert Uytterhoeven Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/spi/sh-msiof.txt | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/spi/sh-msiof.txt b/Documentation/devicetree/bindings/spi/sh-msiof.txt index e865855726a2..bdd83959019c 100644 --- a/Documentation/devicetree/bindings/spi/sh-msiof.txt +++ b/Documentation/devicetree/bindings/spi/sh-msiof.txt @@ -1,7 +1,9 @@ Renesas MSIOF spi controller Required properties: -- compatible : "renesas,msiof-r8a7790" (R-Car H2) +- compatible : "renesas,msiof-r8a7743" (RZ/G1M) + "renesas,msiof-r8a7745" (RZ/G1E) + "renesas,msiof-r8a7790" (R-Car H2) "renesas,msiof-r8a7791" (R-Car M2-W) "renesas,msiof-r8a7792" (R-Car V2H) "renesas,msiof-r8a7793" (R-Car M2-N) @@ -10,7 +12,7 @@ Required properties: "renesas,msiof-r8a7796" (R-Car M3-W) "renesas,msiof-sh73a0" (SH-Mobile AG5) "renesas,sh-mobile-msiof" (generic SH-Mobile compatibile device) - "renesas,rcar-gen2-msiof" (generic R-Car Gen2 compatible device) + "renesas,rcar-gen2-msiof" (generic R-Car Gen2 and RZ/G1 compatible device) "renesas,rcar-gen3-msiof" (generic R-Car Gen3 compatible device) "renesas,sh-msiof" (deprecated) -- cgit v1.2.3 From dedcf233ceb069c2c1d919ec74a913b39b5b4dd5 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 15 Jun 2017 15:19:02 -0700 Subject: dt-bindings: Document MIPS Broadcom STB power management nodes Document the different nodes required for supporting S2/S3/S5 suspend states on MIPS-based Broadcom STB SoCs. Acked-by: Rob Herring Signed-off-by: Florian Fainelli --- .../devicetree/bindings/mips/brcm/soc.txt | 153 +++++++++++++++++++++ 1 file changed, 153 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mips/brcm/soc.txt b/Documentation/devicetree/bindings/mips/brcm/soc.txt index e4e1cd91fb1f..356c29789cf5 100644 --- a/Documentation/devicetree/bindings/mips/brcm/soc.txt +++ b/Documentation/devicetree/bindings/mips/brcm/soc.txt @@ -11,3 +11,156 @@ Required properties: The experimental -viper variants are for running Linux on the 3384's BMIPS4355 cable modem CPU instead of the BMIPS5000 application processor. + +Power management +---------------- + +For power management (particularly, S2/S3/S5 system suspend), the following SoC +components are needed: + += Always-On control block (AON CTRL) + +This hardware provides control registers for the "always-on" (even in low-power +modes) hardware, such as the Power Management State Machine (PMSM). + +Required properties: +- compatible : should be one of + "brcm,bcm7425-aon-ctrl" + "brcm,bcm7429-aon-ctrl" + "brcm,bcm7435-aon-ctrl" and + "brcm,brcmstb-aon-ctrl" +- reg : the register start and length for the AON CTRL block + +Example: + +syscon@410000 { + compatible = "brcm,bcm7425-aon-ctrl", "brcm,brcmstb-aon-ctrl"; + reg = <0x410000 0x400>; +}; + += Memory controllers + +A Broadcom STB SoC typically has a number of independent memory controllers, +each of which may have several associated hardware blocks, which are versioned +independently (control registers, DDR PHYs, etc.). One might consider +describing these controllers as a parent "memory controllers" block, which +contains N sub-nodes (one for each controller in the system), each of which is +associated with a number of hardware register resources (e.g., its PHY. + +== MEMC (MEMory Controller) + +Represents a single memory controller instance. + +Required properties: +- compatible : should contain "brcm,brcmstb-memc" and "simple-bus" +- ranges : should contain the child address in the parent address + space, must be 0 here, and the register start and length of + the entire memory controller (including all sub nodes: DDR PHY, + arbiter, etc.) +- #address-cells : must be 1 +- #size-cells : must be 1 + +Example: + + memory-controller@0 { + compatible = "brcm,brcmstb-memc", "simple-bus"; + ranges = <0x0 0x0 0xa000>; + #address-cells = <1>; + #size-cells = <1>; + + memc-arb@1000 { + ... + }; + + memc-ddr@2000 { + ... + }; + + ddr-phy@6000 { + ... + }; + }; + +Should contain subnodes for any of the following relevant hardware resources: + +== DDR PHY control + +Control registers for this memory controller's DDR PHY. + +Required properties: +- compatible : should contain one of these + "brcm,brcmstb-ddr-phy-v64.5" + "brcm,brcmstb-ddr-phy" + +- reg : the DDR PHY register range and length + +Example: + + ddr-phy@6000 { + compatible = "brcm,brcmstb-ddr-phy-v64.5"; + reg = <0x6000 0xc8>; + }; + +== DDR memory controller sequencer + +Control registers for this memory controller's DDR memory sequencer + +Required properties: +- compatible : should contain one of these + "brcm,bcm7425-memc-ddr" + "brcm,bcm7429-memc-ddr" + "brcm,bcm7435-memc-ddr" and + "brcm,brcmstb-memc-ddr" + +- reg : the DDR sequencer register range and length + +Example: + + memc-ddr@2000 { + compatible = "brcm,bcm7425-memc-ddr", "brcm,brcmstb-memc-ddr"; + reg = <0x2000 0x300>; + }; + +== MEMC Arbiter + +The memory controller arbiter is responsible for memory clients allocation +(bandwidth, priorities etc.) and needs to have its contents restored during +deep sleep states (S3). + +Required properties: + +- compatible : should contain one of these + "brcm,brcmstb-memc-arb-v10.0.0.0" + "brcm,brcmstb-memc-arb" + +- reg : the DDR Arbiter register range and length + +Example: + + memc-arb@1000 { + compatible = "brcm,brcmstb-memc-arb-v10.0.0.0"; + reg = <0x1000 0x248>; + }; + +== Timers + +The Broadcom STB chips contain a timer block with several general purpose +timers that can be used. + +Required properties: + +- compatible : should contain one of: + "brcm,bcm7425-timers" + "brcm,bcm7429-timers" + "brcm,bcm7435-timers and + "brcm,brcmstb-timers" +- reg : the timers register range +- interrupts : the interrupt line for this timer block + +Example: + + timers: timer@4067c0 { + compatible = "brcm,bcm7425-timers", "brcm,brcmstb-timers"; + reg = <0x4067c0 0x40>; + interrupts = <&periph_intc 19>; + }; -- cgit v1.2.3 From 8caea502367056881e5209ca55a7a01775c9a1cd Mon Sep 17 00:00:00 2001 From: Palmer Dabbelt Date: Fri, 8 Sep 2017 17:07:44 -0700 Subject: dt-bindings: RISC-V CPU Bindings This patch adds device tree bindings for RISC-V CPUs, patterned after the ARM device tree CPU bindings. Signed-off-by: Palmer Dabbelt --- Documentation/devicetree/bindings/riscv/cpus.txt | 162 +++++++++++++++++++++++ 1 file changed, 162 insertions(+) create mode 100644 Documentation/devicetree/bindings/riscv/cpus.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/riscv/cpus.txt b/Documentation/devicetree/bindings/riscv/cpus.txt new file mode 100644 index 000000000000..adf7b7af5dc3 --- /dev/null +++ b/Documentation/devicetree/bindings/riscv/cpus.txt @@ -0,0 +1,162 @@ +=================== +RISC-V CPU Bindings +=================== + +The device tree allows to describe the layout of CPUs in a system through +the "cpus" node, which in turn contains a number of subnodes (ie "cpu") +defining properties for every cpu. + +Bindings for CPU nodes follow the Devicetree Specification, available from: + +https://www.devicetree.org/specifications/ + +with updates for 32-bit and 64-bit RISC-V systems provided in this document. + +=========== +Terminology +=========== + +This document uses some terminology common to the RISC-V community that is not +widely used, the definitions of which are listed here: + +* hart: A hardware execution context, which contains all the state mandated by + the RISC-V ISA: a PC and some registers. This terminology is designed to + disambiguate software's view of execution contexts from any particular + microarchitectural implementation strategy. For example, my Intel laptop is + described as having one socket with two cores, each of which has two hyper + threads. Therefore this system has four harts. + +===================================== +cpus and cpu node bindings definition +===================================== + +The RISC-V architecture, in accordance with the Devicetree Specification, +requires the cpus and cpu nodes to be present and contain the properties +described below. + +- cpus node + + Description: Container of cpu nodes + + The node name must be "cpus". + + A cpus node must define the following properties: + + - #address-cells + Usage: required + Value type: + Definition: must be set to 1 + - #size-cells + Usage: required + Value type: + Definition: must be set to 0 + +- cpu node + + Description: Describes a hart context + + PROPERTIES + + - device_type + Usage: required + Value type: + Definition: must be "cpu" + - reg + Usage: required + Value type: + Definition: The hart ID of this CPU node + - compatible: + Usage: required + Value type: + Definition: must contain "riscv", may contain one of + "sifive,rocket0" + - mmu-type: + Usage: optional + Value type: + Definition: Specifies the CPU's MMU type. Possible values are + "riscv,sv32" + "riscv,sv39" + "riscv,sv48" + - riscv,isa: + Usage: required + Value type: + Definition: Contains the RISC-V ISA string of this hart. These + ISA strings are defined by the RISC-V ISA manual. + +Example: SiFive Freedom U540G Development Kit +--------------------------------------------- + +This system contains two harts: a hart marked as disabled that's used for +low-level system tasks and should be ignored by Linux, and a second hart that +Linux is allowed to run on. + + cpus { + #address-cells = <1>; + #size-cells = <0>; + timebase-frequency = <1000000>; + cpu@0 { + clock-frequency = <1600000000>; + compatible = "sifive,rocket0", "riscv"; + device_type = "cpu"; + i-cache-block-size = <64>; + i-cache-sets = <128>; + i-cache-size = <16384>; + next-level-cache = <&L15 &L0>; + reg = <0>; + riscv,isa = "rv64imac"; + status = "disabled"; + L10: interrupt-controller { + #interrupt-cells = <1>; + compatible = "riscv,cpu-intc"; + interrupt-controller; + }; + }; + cpu@1 { + clock-frequency = <1600000000>; + compatible = "sifive,rocket0", "riscv"; + d-cache-block-size = <64>; + d-cache-sets = <64>; + d-cache-size = <32768>; + d-tlb-sets = <1>; + d-tlb-size = <32>; + device_type = "cpu"; + i-cache-block-size = <64>; + i-cache-sets = <64>; + i-cache-size = <32768>; + i-tlb-sets = <1>; + i-tlb-size = <32>; + mmu-type = "riscv,sv39"; + next-level-cache = <&L15 &L0>; + reg = <1>; + riscv,isa = "rv64imafdc"; + status = "okay"; + tlb-split; + L13: interrupt-controller { + #interrupt-cells = <1>; + compatible = "riscv,cpu-intc"; + interrupt-controller; + }; + }; + }; + +Example: Spike ISA Simulator with 1 Hart +---------------------------------------- + +This device tree matches the Spike ISA golden model as run with `spike -p1`. + + cpus { + cpu@0 { + device_type = "cpu"; + reg = <0x00000000>; + status = "okay"; + compatible = "riscv"; + riscv,isa = "rv64imafdc"; + mmu-type = "riscv,sv48"; + clock-frequency = <0x3b9aca00>; + interrupt-controller { + #interrupt-cells = <0x00000001>; + interrupt-controller; + compatible = "riscv,cpu-intc"; + } + } + } -- cgit v1.2.3 From 45b611c896faf29e235d9de6c7a8ceb3393c2b9c Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Fri, 15 Sep 2017 04:00:02 +0200 Subject: rtc: rv3029: fix vendor string The vendor string for Microcrystal is microcrystal. Acked-by: Rob Herring Signed-off-by: Alexandre Belloni --- Documentation/devicetree/bindings/trivial-devices.txt | 2 +- drivers/rtc/rtc-rv3029c2.c | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt index af284fbd4d23..aae37352c574 100644 --- a/Documentation/devicetree/bindings/trivial-devices.txt +++ b/Documentation/devicetree/bindings/trivial-devices.txt @@ -72,7 +72,6 @@ isil,isl29030 Intersil ISL29030 Ambient Light and Proximity Sensor maxim,ds1050 5 Bit Programmable, Pulse-Width Modulator maxim,max1237 Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs maxim,max6625 9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface -mc,rv3029c2 Real Time Clock Module with I2C-Bus mcube,mc3230 mCube 3-axis 8-bit digital accelerometer memsic,mxc6225 MEMSIC 2-axis 8-bit digital accelerometer microchip,mcp4531-502 Microchip 7-bit Single I2C Digital Potentiometer (5k) @@ -141,6 +140,7 @@ microchip,mcp4662-503 Microchip 8-bit Dual I2C Digital Potentiometer with NV Mem microchip,mcp4662-104 Microchip 8-bit Dual I2C Digital Potentiometer with NV Memory (100k) microchip,tc654 PWM Fan Speed Controller With Fan Fault Detection microchip,tc655 PWM Fan Speed Controller With Fan Fault Detection +microcrystal,rv3029 Real Time Clock Module with I2C-Bus miramems,da226 MiraMEMS DA226 2-axis 14-bit digital accelerometer miramems,da280 MiraMEMS DA280 3-axis 14-bit digital accelerometer miramems,da311 MiraMEMS DA311 3-axis 12-bit digital accelerometer diff --git a/drivers/rtc/rtc-rv3029c2.c b/drivers/rtc/rtc-rv3029c2.c index aa09771de04f..cfe3aece51d1 100644 --- a/drivers/rtc/rtc-rv3029c2.c +++ b/drivers/rtc/rtc-rv3029c2.c @@ -876,6 +876,8 @@ static const struct i2c_device_id rv3029_id[] = { MODULE_DEVICE_TABLE(i2c, rv3029_id); static const struct of_device_id rv3029_of_match[] = { + { .compatible = "microcrystal,rv3029" }, + /* Backward compatibility only, do not use compatibles below: */ { .compatible = "rv3029" }, { .compatible = "rv3029c2" }, { .compatible = "mc,rv3029c2" }, -- cgit v1.2.3 From 98bfa34462fb6af70b845d28561072f80bacdb9b Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Sat, 16 Sep 2017 13:48:37 +0200 Subject: Documentation: fix little inconsistencies Fix little inconsistencies in Documentation: make case and spacing match surrounding text. Signed-off-by: Pavel Machek Reviewed-by: Darrick J. Wong Signed-off-by: Jonathan Corbet --- Documentation/filesystems/ext4.txt | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt index 5a8f7f4d2bca..75236c0c2ac2 100644 --- a/Documentation/filesystems/ext4.txt +++ b/Documentation/filesystems/ext4.txt @@ -94,10 +94,10 @@ Note: More extensive information for getting started with ext4 can be * ability to pack bitmaps and inode tables into larger virtual groups via the flex_bg feature * large file support -* Inode allocation using large virtual block groups via flex_bg +* inode allocation using large virtual block groups via flex_bg * delayed allocation * large block (up to pagesize) support -* efficient new ordered mode in JBD2 and ext4(avoid using buffer head to force +* efficient new ordered mode in JBD2 and ext4 (avoid using buffer head to force the ordering) [1] Filesystems with a block size of 1k may see a limit imposed by the @@ -105,7 +105,7 @@ directory hash tree having a maximum depth of two. 2.2 Candidate features for future inclusion -* Online defrag (patches available but not well tested) +* online defrag (patches available but not well tested) * reduced mke2fs time via lazy itable initialization in conjunction with the uninit_bg feature (capability to do this is available in e2fsprogs but a kernel thread to do lazy zeroing of unused inode table blocks @@ -602,7 +602,7 @@ Table of Ext4 specific ioctls bitmaps and inode table, the userspace tool thus just passes the new number of blocks. -EXT4_IOC_SWAP_BOOT Swap i_blocks and associated attributes + EXT4_IOC_SWAP_BOOT Swap i_blocks and associated attributes (like i_blocks, i_size, i_flags, ...) from the specified inode with inode EXT4_BOOT_LOADER_INO (#5). This is typically -- cgit v1.2.3 From 416c7517359b8812c8bcddc31348934b901c3cdc Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 17 Sep 2017 15:19:10 -0700 Subject: Documentation: kernel-api: drop "Data Types" section In the kernel-api chapter, the section for Data Types only contains "Doubly Linked Lists" and all of the function interfaces for list management. There are no other data types in this section, so collapse this section into "List Management Functions". Signed-off-by: Randy Dunlap Signed-off-by: Jonathan Corbet --- Documentation/core-api/kernel-api.rst | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/core-api/kernel-api.rst b/Documentation/core-api/kernel-api.rst index 8282099e0cbf..e557509574a0 100644 --- a/Documentation/core-api/kernel-api.rst +++ b/Documentation/core-api/kernel-api.rst @@ -2,11 +2,9 @@ The Linux Kernel API ==================== -Data Types -========== -Doubly Linked Lists -------------------- +List Management Functions +========================= .. kernel-doc:: include/linux/list.h :internal: -- cgit v1.2.3 From 404376af788a76cca760efdc05f26fd73bd94b17 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 17 Sep 2017 19:07:10 -0700 Subject: Documentation: kernel-api: add bitmap operations from linux/bitmap.h Add to kernel-api Bitmap Operations section. Fix kernel-doc nitpicks in . Signed-off-by: Randy Dunlap Acked-by: Yury Norov Signed-off-by: Jonathan Corbet --- Documentation/core-api/kernel-api.rst | 3 +++ include/linux/bitmap.h | 9 +++++---- 2 files changed, 8 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/core-api/kernel-api.rst b/Documentation/core-api/kernel-api.rst index e557509574a0..f37c73faa5b7 100644 --- a/Documentation/core-api/kernel-api.rst +++ b/Documentation/core-api/kernel-api.rst @@ -59,6 +59,9 @@ Bitmap Operations .. kernel-doc:: lib/bitmap.c :internal: +.. kernel-doc:: include/linux/bitmap.h + :internal: + Command-line Parsing -------------------- diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 700cf5f67118..5c4178016b1e 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -360,8 +360,9 @@ static inline int bitmap_parse(const char *buf, unsigned int buflen, return __bitmap_parse(buf, buflen, 0, maskp, nmaskbits); } -/* +/** * BITMAP_FROM_U64() - Represent u64 value in the format suitable for bitmap. + * @n: u64 value * * Linux bitmaps are internally arrays of unsigned longs, i.e. 32-bit * integers in 32-bit environment, and 64-bit integers in 64-bit one. @@ -392,14 +393,14 @@ static inline int bitmap_parse(const char *buf, unsigned int buflen, ((unsigned long) ((u64)(n) >> 32)) #endif -/* +/** * bitmap_from_u64 - Check and swap words within u64. * @mask: source bitmap * @dst: destination bitmap * - * In 32-bit Big Endian kernel, when using (u32 *)(&val)[*] + * In 32-bit Big Endian kernel, when using ``(u32 *)(&val)[*]`` * to read u64 mask, we will get the wrong word. - * That is "(u32 *)(&val)[0]" gets the upper 32 bits, + * That is ``(u32 *)(&val)[0]`` gets the upper 32 bits, * but we expect the lower 32-bits of u64. */ static inline void bitmap_from_u64(unsigned long *dst, u64 mask) -- cgit v1.2.3 From ac0a314caed1827f4ef5d7145eb609147b48b45d Mon Sep 17 00:00:00 2001 From: Daniel Xu Date: Mon, 18 Sep 2017 22:21:25 -0700 Subject: console: Update to reflect new default value The default value was changed from 10 minutes to disabled in commit a4199f5eb8096d6. Signed-off-by: Daniel Xu Signed-off-by: Jonathan Corbet --- Documentation/admin-guide/kernel-parameters.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 05496622b4ef..fcaa8558ed7e 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -641,8 +641,8 @@ For now, only VisioBraille is supported. consoleblank= [KNL] The console blank (screen saver) timeout in - seconds. Defaults to 10*60 = 10mins. A value of 0 - disables the blank timer. + seconds. A value of 0 disables the blank timer. + Defaults to 0. coredump_filter= [KNL] Change the default value for -- cgit v1.2.3 From d19b3e32375bd21b5d89cc484dfc56cbd9b7fee4 Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Mon, 25 Sep 2017 18:36:19 +0900 Subject: Documentation/process: fix the canonical patch format description There shouldn't be a blank line at the beginning, if there is no optional in-body "From" line. There must be a blank line between the body of the explanation and the beginning of the S-o-b lines. Signed-off-by: Junio C Hamano Signed-off-by: Jonathan Corbet --- Documentation/process/submitting-patches.rst | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/process/submitting-patches.rst b/Documentation/process/submitting-patches.rst index 733478ade91b..1ef19d3a3eee 100644 --- a/Documentation/process/submitting-patches.rst +++ b/Documentation/process/submitting-patches.rst @@ -621,14 +621,14 @@ The canonical patch subject line is:: The canonical patch message body contains the following: - - A ``from`` line specifying the patch author (only needed if the person - sending the patch is not the author). - - - An empty line. + - A ``from`` line specifying the patch author, followed by an empty + line (only needed if the person sending the patch is not the author). - The body of the explanation, line wrapped at 75 columns, which will be copied to the permanent changelog to describe this patch. + - An empty line. + - The ``Signed-off-by:`` lines, described above, which will also go in the changelog. -- cgit v1.2.3 From d4306db189d04886e07751f682495aeae61a4c4f Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Mon, 25 Sep 2017 18:36:20 +0900 Subject: Documentation/process: phrasofix Devils in the details are found only when the high level design is refined and gets more detailed, and the appropriate phrase to use to describe this is "problems are revealed", not "problems are reviewed". Reviews may reveal these problems, though ;-) Signed-off-by: Junio C Hamano Signed-off-by: Jonathan Corbet --- Documentation/process/3.Early-stage.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/process/3.Early-stage.rst b/Documentation/process/3.Early-stage.rst index af2c0af931d6..be00716071d4 100644 --- a/Documentation/process/3.Early-stage.rst +++ b/Documentation/process/3.Early-stage.rst @@ -178,7 +178,7 @@ matter is (1) kernel developers tend to be busy, (2) there is no shortage of people with grand plans and little code (or even prospect of code) to back them up, and (3) nobody is obligated to review or comment on ideas posted by others. Beyond that, high-level designs often hide problems -which are only reviewed when somebody actually tries to implement those +which are only revealed when somebody actually tries to implement those designs; for that reason, kernel developers would rather see the code. If a request-for-comments posting yields little in the way of comments, do -- cgit v1.2.3 From 44e9f099367716dde33618b7d5d25c3123437ba6 Mon Sep 17 00:00:00 2001 From: stephen lu Date: Tue, 29 Aug 2017 10:42:24 +0800 Subject: docs: highres: fix broken urls Some urls is invalid. I find alternative urls. Signed-off-by: stephen lu Signed-off-by: Jonathan Corbet --- Documentation/timers/highres.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/timers/highres.txt b/Documentation/timers/highres.txt index e8789976e77c..9d88f67781c2 100644 --- a/Documentation/timers/highres.txt +++ b/Documentation/timers/highres.txt @@ -4,10 +4,10 @@ High resolution timers and dynamic ticks design notes Further information can be found in the paper of the OLS 2006 talk "hrtimers and beyond". The paper is part of the OLS 2006 Proceedings Volume 1, which can be found on the OLS website: -http://www.linuxsymposium.org/2006/linuxsymposium_procv1.pdf +https://www.kernel.org/doc/ols/2006/ols2006v1-pages-333-346.pdf The slides to this talk are available from: -http://tglx.de/projects/hrtimers/ols2006-hrtimers.pdf +http://www.cs.columbia.edu/~nahum/w6998/papers/ols2006-hrtimers-slides.pdf The slides contain five figures (pages 2, 15, 18, 20, 22), which illustrate the changes in the time(r) related Linux subsystems. Figure #1 (p. 2) shows the -- cgit v1.2.3 From 8a29896a6e31c7aa2ca3b50d8aefe05f280b0b7e Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 8 Sep 2017 16:35:55 -0700 Subject: docs: clean up and add rest of CRC functions to kernel-api.rst Add the rest of the CRC library functions to kernel-api. - try to clarify crc32() by adding '@' to a function parameter - reorder kernel-api CRC functions to be less random - add more CRC functions to kernel-api - correct the function parameter names in several places Signed-off-by: Randy Dunlap Signed-off-by: Jonathan Corbet --- Documentation/core-api/kernel-api.rst | 10 ++++++++-- lib/crc32.c | 2 +- lib/crc4.c | 2 +- lib/crc8.c | 22 +++++++++++----------- 4 files changed, 21 insertions(+), 15 deletions(-) (limited to 'Documentation') diff --git a/Documentation/core-api/kernel-api.rst b/Documentation/core-api/kernel-api.rst index f37c73faa5b7..657a89a219b2 100644 --- a/Documentation/core-api/kernel-api.rst +++ b/Documentation/core-api/kernel-api.rst @@ -71,13 +71,16 @@ Command-line Parsing CRC Functions ------------- +.. kernel-doc:: lib/crc4.c + :export: + .. kernel-doc:: lib/crc7.c :export: -.. kernel-doc:: lib/crc16.c +.. kernel-doc:: lib/crc8.c :export: -.. kernel-doc:: lib/crc-itu-t.c +.. kernel-doc:: lib/crc16.c :export: .. kernel-doc:: lib/crc32.c @@ -85,6 +88,9 @@ CRC Functions .. kernel-doc:: lib/crc-ccitt.c :export: +.. kernel-doc:: lib/crc-itu-t.c + :export: + idr/ida Functions ----------------- diff --git a/lib/crc32.c b/lib/crc32.c index 6ddc92bc1460..2ef20fe84b69 100644 --- a/lib/crc32.c +++ b/lib/crc32.c @@ -225,7 +225,7 @@ static u32 __attribute_const__ gf2_multiply(u32 x, u32 y, u32 modulus) } /** - * crc32_generic_shift - Append len 0 bytes to crc, in logarithmic time + * crc32_generic_shift - Append @len 0 bytes to crc, in logarithmic time * @crc: The original little-endian CRC (i.e. lsbit is x^31 coefficient) * @len: The number of bytes. @crc is multiplied by x^(8*@len) * @polynomial: The modulus used to reduce the result to 32 bits. diff --git a/lib/crc4.c b/lib/crc4.c index cf6db46661be..164ed9444cd3 100644 --- a/lib/crc4.c +++ b/lib/crc4.c @@ -15,7 +15,7 @@ static const uint8_t crc4_tab[] = { /** * crc4 - calculate the 4-bit crc of a value. - * @crc: starting crc4 + * @c: starting crc4 * @x: value to checksum * @bits: number of bits in @x to checksum * diff --git a/lib/crc8.c b/lib/crc8.c index 87b59cafdb83..595a5a75e3cd 100644 --- a/lib/crc8.c +++ b/lib/crc8.c @@ -20,11 +20,11 @@ #include #include -/* +/** * crc8_populate_msb - fill crc table for given polynomial in reverse bit order. * - * table: table to be filled. - * polynomial: polynomial for which table is to be filled. + * @table: table to be filled. + * @polynomial: polynomial for which table is to be filled. */ void crc8_populate_msb(u8 table[CRC8_TABLE_SIZE], u8 polynomial) { @@ -42,11 +42,11 @@ void crc8_populate_msb(u8 table[CRC8_TABLE_SIZE], u8 polynomial) } EXPORT_SYMBOL(crc8_populate_msb); -/* +/** * crc8_populate_lsb - fill crc table for given polynomial in regular bit order. * - * table: table to be filled. - * polynomial: polynomial for which table is to be filled. + * @table: table to be filled. + * @polynomial: polynomial for which table is to be filled. */ void crc8_populate_lsb(u8 table[CRC8_TABLE_SIZE], u8 polynomial) { @@ -63,13 +63,13 @@ void crc8_populate_lsb(u8 table[CRC8_TABLE_SIZE], u8 polynomial) } EXPORT_SYMBOL(crc8_populate_lsb); -/* +/** * crc8 - calculate a crc8 over the given input data. * - * table: crc table used for calculation. - * pdata: pointer to data buffer. - * nbytes: number of bytes in data buffer. - * crc: previous returned crc8 value. + * @table: crc table used for calculation. + * @pdata: pointer to data buffer. + * @nbytes: number of bytes in data buffer. + * @crc: previous returned crc8 value. */ u8 crc8(const u8 table[CRC8_TABLE_SIZE], u8 *pdata, size_t nbytes, u8 crc) { -- cgit v1.2.3 From 165d3ad884df4b30c3564a478b457b499345886f Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Mon, 25 Sep 2017 16:39:38 -0700 Subject: x86/intel_rdt: Add documentation for "info/last_cmd_status" New file in the "info" directory helps diagnose what went wrong when using the /sys/fs/resctrl file system Signed-off-by: Tony Luck Signed-off-by: Thomas Gleixner Cc: Fenghua Yu Cc: Steven Rostedt Cc: Vikas Shivappa Cc: Boris Petkov Cc: Reinette Chatre Link: https://lkml.kernel.org/r/387e78e444582403c2454479e576caf5721a363f.1506382469.git.tony.luck@intel.com --- Documentation/x86/intel_rdt_ui.txt | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'Documentation') diff --git a/Documentation/x86/intel_rdt_ui.txt b/Documentation/x86/intel_rdt_ui.txt index 4d8848e4e224..6851854cf69d 100644 --- a/Documentation/x86/intel_rdt_ui.txt +++ b/Documentation/x86/intel_rdt_ui.txt @@ -87,6 +87,17 @@ with the following files: bytes) at which a previously used LLC_occupancy counter can be considered for re-use. +Finally, in the top level of the "info" directory there is a file +named "last_cmd_status". This is reset with every "command" issued +via the file system (making new directories or writing to any of the +control files). If the command was successful, it will read as "ok". +If the command failed, it will provide more information that can be +conveyed in the error returns from file operations. E.g. + + # echo L3:0=f7 > schemata + bash: echo: write error: Invalid argument + # cat info/last_cmd_status + mask f7 has non-consecutive 1-bits Resource alloc and monitor groups --------------------------------- -- cgit v1.2.3 From da6789756d4e7755bc389389770335927fa96ad0 Mon Sep 17 00:00:00 2001 From: Pierre-Yves MORDRET Date: Fri, 22 Sep 2017 09:31:29 +0200 Subject: dt-bindings: Document the STM32 DMAMUX bindings This patch adds the documentation of device tree bindings for the STM32 DMAMUX. Signed-off-by: M'boumba Cedric Madianga Signed-off-by: Pierre-Yves MORDRET Acked-by: Rob Herring Signed-off-by: Vinod Koul --- .../devicetree/bindings/dma/stm32-dmamux.txt | 84 ++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/stm32-dmamux.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/dma/stm32-dmamux.txt b/Documentation/devicetree/bindings/dma/stm32-dmamux.txt new file mode 100644 index 000000000000..1b893b235507 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/stm32-dmamux.txt @@ -0,0 +1,84 @@ +STM32 DMA MUX (DMA request router) + +Required properties: +- compatible: "st,stm32h7-dmamux" +- reg: Memory map for accessing module +- #dma-cells: Should be set to <3>. + First parameter is request line number. + Second is DMA channel configuration + Third is Fifo threshold + For more details about the three cells, please see + stm32-dma.txt documentation binding file +- dma-masters: Phandle pointing to the DMA controllers. + Several controllers are allowed. Only "st,stm32-dma" DMA + compatible are supported. + +Optional properties: +- dma-channels : Number of DMA requests supported. +- dma-requests : Number of DMAMUX requests supported. +- resets: Reference to a reset controller asserting the DMA controller +- clocks: Input clock of the DMAMUX instance. + +Example: + +/* DMA controller 1 */ +dma1: dma-controller@40020000 { + compatible = "st,stm32-dma"; + reg = <0x40020000 0x400>; + interrupts = <11>, + <12>, + <13>, + <14>, + <15>, + <16>, + <17>, + <47>; + clocks = <&timer_clk>; + #dma-cells = <4>; + st,mem2mem; + resets = <&rcc 150>; + dma-channels = <8>; + dma-requests = <8>; +}; + +/* DMA controller 1 */ +dma2: dma@40020400 { + compatible = "st,stm32-dma"; + reg = <0x40020400 0x400>; + interrupts = <56>, + <57>, + <58>, + <59>, + <60>, + <68>, + <69>, + <70>; + clocks = <&timer_clk>; + #dma-cells = <4>; + st,mem2mem; + resets = <&rcc 150>; + dma-channels = <8>; + dma-requests = <8>; +}; + +/* DMA mux */ +dmamux1: dma-router@40020800 { + compatible = "st,stm32h7-dmamux"; + reg = <0x40020800 0x3c>; + #dma-cells = <3>; + dma-requests = <128>; + dma-channels = <16>; + dma-masters = <&dma1 &dma2>; + clocks = <&timer_clk>; +}; + +/* DMA client */ +usart1: serial@40011000 { + compatible = "st,stm32-usart", "st,stm32-uart"; + reg = <0x40011000 0x400>; + interrupts = <37>; + clocks = <&timer_clk>; + dmas = <&dmamux1 41 0x414 0>, + <&dmamux1 42 0x414 0>; + dma-names = "rx", "tx"; +}; -- cgit v1.2.3 From 6e10d19b145747c9667d40b7cf079b42d33c4c28 Mon Sep 17 00:00:00 2001 From: Pierre-Yves MORDRET Date: Fri, 22 Sep 2017 09:31:31 +0200 Subject: dt-bindings: stm32-dma: add a property to handle STM32 DMAMUX STM32 DMA controller has to exposed its number of request line to be addressed via STM32 DMAMUX. Signed-off-by: M'boumba Cedric Madianga Signed-off-by: Pierre-Yves MORDRET Acked-by: Rob Herring Signed-off-by: Vinod Koul --- Documentation/devicetree/bindings/dma/stm32-dma.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/dma/stm32-dma.txt b/Documentation/devicetree/bindings/dma/stm32-dma.txt index 4408af693d0c..77542e1c7bde 100644 --- a/Documentation/devicetree/bindings/dma/stm32-dma.txt +++ b/Documentation/devicetree/bindings/dma/stm32-dma.txt @@ -13,6 +13,7 @@ Required properties: - #dma-cells : Must be <4>. See DMA client paragraph for more details. Optional properties: +- dma-requests : Number of DMA requests supported. - resets: Reference to a reset controller asserting the DMA controller - st,mem2mem: boolean; if defined, it indicates that the controller supports memory-to-memory transfer @@ -34,12 +35,13 @@ Example: #dma-cells = <4>; st,mem2mem; resets = <&rcc 150>; + dma-requests = <8>; }; * DMA client DMA clients connected to the STM32 DMA controller must use the format -described in the dma.txt file, using a five-cell specifier for each +described in the dma.txt file, using a four-cell specifier for each channel: a phandle to the DMA controller plus the following four integer cells: 1. The channel id -- cgit v1.2.3 From 1c9f98d1bfbd0696442f97fa7d43a727e1e16568 Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Fri, 18 Aug 2017 17:32:03 -0500 Subject: ipmi: Make IPMI panic strings always available They were set by config items, but people complained that they were never turned on. So have them always available and enabled by a module parameter. Signed-off-by: Corey Minyard --- Documentation/IPMI.txt | 4 +- drivers/char/ipmi/Kconfig | 27 +++++++---- drivers/char/ipmi/ipmi_msghandler.c | 91 +++++++++++++++++++++++++++++++------ 3 files changed, 98 insertions(+), 24 deletions(-) (limited to 'Documentation') diff --git a/Documentation/IPMI.txt b/Documentation/IPMI.txt index aa77a25a0940..5ef1047e2e66 100644 --- a/Documentation/IPMI.txt +++ b/Documentation/IPMI.txt @@ -81,7 +81,9 @@ If you want the driver to put an event into the event log on a panic, enable the 'Generate a panic event to all BMCs on a panic' option. If you want the whole panic string put into the event log using OEM events, enable the 'Generate OEM events containing the panic string' -option. +option. You can also enable these dynamically by setting the module +parameter named "panic_op" in the ipmi_msghandler module to "event" +or "string". Setting that parameter to "none" disables this function. Basic Design ------------ diff --git a/drivers/char/ipmi/Kconfig b/drivers/char/ipmi/Kconfig index f6fa056a52fc..152ccefdaecb 100644 --- a/drivers/char/ipmi/Kconfig +++ b/drivers/char/ipmi/Kconfig @@ -25,21 +25,28 @@ if IPMI_HANDLER config IPMI_PANIC_EVENT bool 'Generate a panic event to all BMCs on a panic' help - When a panic occurs, this will cause the IPMI message handler to - generate an IPMI event describing the panic to each interface - registered with the message handler. + When a panic occurs, this will cause the IPMI message handler to, + by default, generate an IPMI event describing the panic to each + interface registered with the message handler. This is always + available, the module parameter for ipmi_msghandler named + panic_op can be set to "event" to chose this value, this config + simply causes the default value to be set to "event". config IPMI_PANIC_STRING bool 'Generate OEM events containing the panic string' depends on IPMI_PANIC_EVENT help - When a panic occurs, this will cause the IPMI message handler to - generate IPMI OEM type f0 events holding the IPMB address of the - panic generator (byte 4 of the event), a sequence number for the - string (byte 5 of the event) and part of the string (the rest of the - event). Bytes 1, 2, and 3 are the normal usage for an OEM event. - You can fetch these events and use the sequence numbers to piece the - string together. + When a panic occurs, this will cause the IPMI message handler to, + by default, generate IPMI OEM type f0 events holding the IPMB + address of the panic generator (byte 4 of the event), a sequence + number for the string (byte 5 of the event) and part of the + string (the rest of the event). Bytes 1, 2, and 3 are the normal + usage for an OEM event. You can fetch these events and use the + sequence numbers to piece the string together. This config + parameter sets the default value to generate these events, + the module parameter for ipmi_msghandler named panic_op can + be set to "string" to chose this value, this config simply + causes the default value to be set to "string". config IPMI_DEVICE_INTERFACE tristate 'Device interface for IPMI' diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index c82d9fd2f05a..047ca9fcb29b 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -46,6 +46,7 @@ #include #include #include +#include #define PFX "IPMI message handler: " @@ -61,6 +62,74 @@ static int handle_one_recv_msg(ipmi_smi_t intf, static int initialized; +enum ipmi_panic_event_op { + IPMI_SEND_PANIC_EVENT_NONE, + IPMI_SEND_PANIC_EVENT, + IPMI_SEND_PANIC_EVENT_STRING +}; +#ifdef CONFIG_IPMI_PANIC_STRING +#define IPMI_PANIC_DEFAULT IPMI_SEND_PANIC_EVENT_STRING +#elif defined(CONFIG_IPMI_PANIC_EVENT) +#define IPMI_PANIC_DEFAULT IPMI_SEND_PANIC_EVENT +#else +#define IPMI_PANIC_DEFAULT IPMI_SEND_PANIC_EVENT_NONE +#endif +static enum ipmi_panic_event_op ipmi_send_panic_event = IPMI_PANIC_DEFAULT; + +static int panic_op_write_handler(const char *val, + const struct kernel_param *kp) +{ + char valcp[16]; + char *s; + + strncpy(valcp, val, 16); + valcp[15] = '\0'; + + s = strstrip(valcp); + + if (strcmp(s, "none") == 0) + ipmi_send_panic_event = IPMI_SEND_PANIC_EVENT_NONE; + else if (strcmp(s, "event") == 0) + ipmi_send_panic_event = IPMI_SEND_PANIC_EVENT; + else if (strcmp(s, "string") == 0) + ipmi_send_panic_event = IPMI_SEND_PANIC_EVENT_STRING; + else + return -EINVAL; + + return 0; +} + +static int panic_op_read_handler(char *buffer, const struct kernel_param *kp) +{ + switch (ipmi_send_panic_event) { + case IPMI_SEND_PANIC_EVENT_NONE: + strcpy(buffer, "none"); + break; + + case IPMI_SEND_PANIC_EVENT: + strcpy(buffer, "event"); + break; + + case IPMI_SEND_PANIC_EVENT_STRING: + strcpy(buffer, "string"); + break; + + default: + strcpy(buffer, "???"); + break; + } + + return strlen(buffer); +} + +static const struct kernel_param_ops panic_op_ops = { + .set = panic_op_write_handler, + .get = panic_op_read_handler +}; +module_param_cb(panic_op, &panic_op_ops, NULL, 0600); +MODULE_PARM_DESC(panic_op, "Sets if the IPMI driver will attempt to store panic information in the event log in the event of a panic. Set to 'none' for no, 'event' for a single event, or 'string' for a generic event and the panic string in IPMI OEM events."); + + #ifdef CONFIG_PROC_FS static struct proc_dir_entry *proc_ipmi_root; #endif /* CONFIG_PROC_FS */ @@ -4271,8 +4340,6 @@ void ipmi_free_recv_msg(struct ipmi_recv_msg *msg) } EXPORT_SYMBOL(ipmi_free_recv_msg); -#ifdef CONFIG_IPMI_PANIC_EVENT - static atomic_t panic_done_count = ATOMIC_INIT(0); static void dummy_smi_done_handler(struct ipmi_smi_msg *msg) @@ -4320,7 +4387,6 @@ static void ipmi_panic_request_and_wait(ipmi_smi_t intf, ipmi_poll(intf); } -#ifdef CONFIG_IPMI_PANIC_STRING static void event_receiver_fetcher(ipmi_smi_t intf, struct ipmi_recv_msg *msg) { if ((msg->addr.addr_type == IPMI_SYSTEM_INTERFACE_ADDR_TYPE) @@ -4347,7 +4413,6 @@ static void device_id_fetcher(ipmi_smi_t intf, struct ipmi_recv_msg *msg) intf->local_event_generator = (msg->msg.data[6] >> 5) & 1; } } -#endif static void send_panic_events(char *str) { @@ -4357,6 +4422,9 @@ static void send_panic_events(char *str) struct ipmi_system_interface_addr *si; struct ipmi_addr addr; + if (ipmi_send_panic_event == IPMI_SEND_PANIC_EVENT_NONE) + return; + si = (struct ipmi_system_interface_addr *) &addr; si->addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE; si->channel = IPMI_BMC_CHANNEL; @@ -4385,20 +4453,19 @@ static void send_panic_events(char *str) /* For every registered interface, send the event. */ list_for_each_entry_rcu(intf, &ipmi_interfaces, link) { - if (!intf->handlers) - /* Interface is not ready. */ + if (!intf->handlers || !intf->handlers->poll) + /* Interface is not ready or can't run at panic time. */ continue; /* Send the event announcing the panic. */ ipmi_panic_request_and_wait(intf, &addr, &msg); } -#ifdef CONFIG_IPMI_PANIC_STRING /* * On every interface, dump a bunch of OEM event holding the * string. */ - if (!str) + if (ipmi_send_panic_event != IPMI_SEND_PANIC_EVENT_STRING || !str) return; /* For every registered interface, send the event. */ @@ -4507,9 +4574,7 @@ static void send_panic_events(char *str) ipmi_panic_request_and_wait(intf, &addr, &msg); } } -#endif /* CONFIG_IPMI_PANIC_STRING */ } -#endif /* CONFIG_IPMI_PANIC_EVENT */ static int has_panicked; @@ -4547,12 +4612,12 @@ static int panic_event(struct notifier_block *this, spin_unlock(&intf->waiting_rcv_msgs_lock); intf->run_to_completion = 1; - intf->handlers->set_run_to_completion(intf->send_info, 1); + if (intf->handlers->set_run_to_completion) + intf->handlers->set_run_to_completion(intf->send_info, + 1); } -#ifdef CONFIG_IPMI_PANIC_EVENT send_panic_events(ptr); -#endif return NOTIFY_DONE; } -- cgit v1.2.3 From d25d41827fee2b489518eee99ef156b005c0c01e Mon Sep 17 00:00:00 2001 From: Stefan Brüns Date: Thu, 28 Sep 2017 03:49:28 +0200 Subject: arm: allwinner: Correct unit name in devicetree binding example MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Unit-names must not start with a leading 0. Signed-off-by: Stefan Brüns Signed-off-by: Maxime Ripard --- Documentation/devicetree/bindings/dma/sun6i-dma.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/dma/sun6i-dma.txt b/Documentation/devicetree/bindings/dma/sun6i-dma.txt index 98fbe1a5c6dd..b32e3bfdb88a 100644 --- a/Documentation/devicetree/bindings/dma/sun6i-dma.txt +++ b/Documentation/devicetree/bindings/dma/sun6i-dma.txt @@ -18,7 +18,7 @@ Required properties: - #dma-cells : Should be 1, a single cell holding a line request number Example: - dma: dma-controller@01c02000 { + dma: dma-controller@1c02000 { compatible = "allwinner,sun6i-a31-dma"; reg = <0x01c02000 0x1000>; interrupts = <0 50 4>; -- cgit v1.2.3 From 0a26a45d1a2338326a369c9544dc5141a6e75106 Mon Sep 17 00:00:00 2001 From: Harry Wentland Date: Thu, 28 Sep 2017 11:53:19 -0400 Subject: drm/doc: Reference AMD DC todos Signed-off-by: Harry Wentland Signed-off-by: Alex Deucher --- Documentation/gpu/todo.rst | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'Documentation') diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 22af55d06ab8..4a837cfb6a39 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -390,5 +390,15 @@ those drivers as simple as possible, so lots of room for refactoring: Contact: Noralf Trønnes, Daniel Vetter +AMD DC Display Driver +--------------------- + +AMD DC is the display driver for AMD devices starting with Vega. There has been +a bunch of progress cleaning it up but there's still plenty of work to be done. + +See drivers/gpu/drm/amd/display/TODO for tasks. + +Contact: Harry Wentland, Alex Deucher + Outside DRM =========== -- cgit v1.2.3 From 0d5936344f30aba0f6ddb92b030cb6a05168efe6 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 25 Sep 2017 09:00:19 -0700 Subject: sched: Implement interface for cgroup unified hierarchy There are a couple interface issues which can be addressed in cgroup2 interface. * Stats from cpuacct being reported separately from the cpu stats. * Use of different time units. Writable control knobs use microseconds, some stat fields use nanoseconds while other cpuacct stat fields use centiseconds. * Control knobs which can't be used in the root cgroup still show up in the root. * Control knob names and semantics aren't consistent with other controllers. This patchset implements cpu controller's interface on cgroup2 which adheres to the controller file conventions described in Documentation/cgroups/cgroup-v2.txt. Overall, the following changes are made. * cpuacct is implictly enabled and disabled by cpu and its information is reported through "cpu.stat" which now uses microseconds for all time durations. All time duration fields now have "_usec" appended to them for clarity. Note that cpuacct.usage_percpu is currently not included in "cpu.stat". If this information is actually called for, it will be added later. * "cpu.shares" is replaced with "cpu.weight" and operates on the standard scale defined by CGROUP_WEIGHT_MIN/DFL/MAX (1, 100, 10000). The weight is scaled to scheduler weight so that 100 maps to 1024 and the ratio relationship is preserved - if weight is W and its scaled value is S, W / 100 == S / 1024. While the mapped range is a bit smaller than the orignal scheduler weight range, the dead zones on both sides are relatively small and covers wider range than the nice value mappings. This file doesn't make sense in the root cgroup and isn't created on root. * "cpu.weight.nice" is added. When read, it reads back the nice value which is closest to the current "cpu.weight". When written, it sets "cpu.weight" to the weight value which matches the nice value. This makes it easy to configure cgroups when they're competing against threads in threaded subtrees. * "cpu.cfs_quota_us" and "cpu.cfs_period_us" are replaced by "cpu.max" which contains both quota and period. v4: - Use cgroup2 basic usage stat as the information source instead of cpuacct. v3: - Added "cpu.weight.nice" to allow using nice values when configuring the weight. The feature is requested by PeterZ. - Merge the patch to enable threaded support on cpu and cpuacct. - Dropped the bits about getting rid of cpuacct from patch description as there is a pretty strong case for making cpuacct an implicit controller so that basic cpu usage stats are always available. - Documentation updated accordingly. "cpu.rt.max" section is dropped for now. v2: - cpu_stats_show() was incorrectly using CONFIG_FAIR_GROUP_SCHED for CFS bandwidth stats and also using raw division for u64. Use CONFIG_CFS_BANDWITH and do_div() instead. "cpu.rt.max" is not included yet. Signed-off-by: Tejun Heo Acked-by: Peter Zijlstra (Intel) Cc: Ingo Molnar Cc: Li Zefan Cc: Johannes Weiner --- Documentation/cgroup-v2.txt | 36 ++++------ kernel/sched/core.c | 171 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 183 insertions(+), 24 deletions(-) (limited to 'Documentation') diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt index 3f8216912df0..0bbdc720dd7c 100644 --- a/Documentation/cgroup-v2.txt +++ b/Documentation/cgroup-v2.txt @@ -902,10 +902,6 @@ Controllers CPU --- -.. note:: - - The interface for the cpu controller hasn't been merged yet - The "cpu" controllers regulates distribution of CPU cycles. This controller implements weight and absolute bandwidth limit models for normal scheduling policy and absolute bandwidth allocation model for @@ -935,6 +931,18 @@ All time durations are in microseconds. The weight in the range [1, 10000]. + cpu.weight.nice + A read-write single value file which exists on non-root + cgroups. The default is "0". + + The nice value is in the range [-20, 19]. + + This interface file is an alternative interface for + "cpu.weight" and allows reading and setting weight using the + same values used by nice(2). Because the range is smaller and + granularity is coarser for the nice values, the read value is + the closest approximation of the current weight. + cpu.max A read-write two value file which exists on non-root cgroups. The default is "max 100000". @@ -947,26 +955,6 @@ All time durations are in microseconds. $PERIOD duration. "max" for $MAX indicates no limit. If only one number is written, $MAX is updated. - cpu.rt.max - .. note:: - - The semantics of this file is still under discussion and the - interface hasn't been merged yet - - A read-write two value file which exists on all cgroups. - The default is "0 100000". - - The maximum realtime runtime allocation. Over-committing - configurations are disallowed and process migrations are - rejected if not enough bandwidth is available. It's in the - following format:: - - $MAX $PERIOD - - which indicates that the group may consume upto $MAX in each - $PERIOD duration. If only one number is written, $MAX is - updated. - Memory ------ diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 6815fa424a7a..ad255162a830 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6678,6 +6678,175 @@ static struct cftype cpu_legacy_files[] = { { } /* Terminate */ }; +static int cpu_stat_show(struct seq_file *sf, void *v) +{ + cgroup_stat_show_cputime(sf, ""); + +#ifdef CONFIG_CFS_BANDWIDTH + { + struct task_group *tg = css_tg(seq_css(sf)); + struct cfs_bandwidth *cfs_b = &tg->cfs_bandwidth; + u64 throttled_usec; + + throttled_usec = cfs_b->throttled_time; + do_div(throttled_usec, NSEC_PER_USEC); + + seq_printf(sf, "nr_periods %d\n" + "nr_throttled %d\n" + "throttled_usec %llu\n", + cfs_b->nr_periods, cfs_b->nr_throttled, + throttled_usec); + } +#endif + return 0; +} + +#ifdef CONFIG_FAIR_GROUP_SCHED +static u64 cpu_weight_read_u64(struct cgroup_subsys_state *css, + struct cftype *cft) +{ + struct task_group *tg = css_tg(css); + u64 weight = scale_load_down(tg->shares); + + return DIV_ROUND_CLOSEST_ULL(weight * CGROUP_WEIGHT_DFL, 1024); +} + +static int cpu_weight_write_u64(struct cgroup_subsys_state *css, + struct cftype *cft, u64 weight) +{ + /* + * cgroup weight knobs should use the common MIN, DFL and MAX + * values which are 1, 100 and 10000 respectively. While it loses + * a bit of range on both ends, it maps pretty well onto the shares + * value used by scheduler and the round-trip conversions preserve + * the original value over the entire range. + */ + if (weight < CGROUP_WEIGHT_MIN || weight > CGROUP_WEIGHT_MAX) + return -ERANGE; + + weight = DIV_ROUND_CLOSEST_ULL(weight * 1024, CGROUP_WEIGHT_DFL); + + return sched_group_set_shares(css_tg(css), scale_load(weight)); +} + +static s64 cpu_weight_nice_read_s64(struct cgroup_subsys_state *css, + struct cftype *cft) +{ + unsigned long weight = scale_load_down(css_tg(css)->shares); + int last_delta = INT_MAX; + int prio, delta; + + /* find the closest nice value to the current weight */ + for (prio = 0; prio < ARRAY_SIZE(sched_prio_to_weight); prio++) { + delta = abs(sched_prio_to_weight[prio] - weight); + if (delta >= last_delta) + break; + last_delta = delta; + } + + return PRIO_TO_NICE(prio - 1 + MAX_RT_PRIO); +} + +static int cpu_weight_nice_write_s64(struct cgroup_subsys_state *css, + struct cftype *cft, s64 nice) +{ + unsigned long weight; + + if (nice < MIN_NICE || nice > MAX_NICE) + return -ERANGE; + + weight = sched_prio_to_weight[NICE_TO_PRIO(nice) - MAX_RT_PRIO]; + return sched_group_set_shares(css_tg(css), scale_load(weight)); +} +#endif + +static void __maybe_unused cpu_period_quota_print(struct seq_file *sf, + long period, long quota) +{ + if (quota < 0) + seq_puts(sf, "max"); + else + seq_printf(sf, "%ld", quota); + + seq_printf(sf, " %ld\n", period); +} + +/* caller should put the current value in *@periodp before calling */ +static int __maybe_unused cpu_period_quota_parse(char *buf, + u64 *periodp, u64 *quotap) +{ + char tok[21]; /* U64_MAX */ + + if (!sscanf(buf, "%s %llu", tok, periodp)) + return -EINVAL; + + *periodp *= NSEC_PER_USEC; + + if (sscanf(tok, "%llu", quotap)) + *quotap *= NSEC_PER_USEC; + else if (!strcmp(tok, "max")) + *quotap = RUNTIME_INF; + else + return -EINVAL; + + return 0; +} + +#ifdef CONFIG_CFS_BANDWIDTH +static int cpu_max_show(struct seq_file *sf, void *v) +{ + struct task_group *tg = css_tg(seq_css(sf)); + + cpu_period_quota_print(sf, tg_get_cfs_period(tg), tg_get_cfs_quota(tg)); + return 0; +} + +static ssize_t cpu_max_write(struct kernfs_open_file *of, + char *buf, size_t nbytes, loff_t off) +{ + struct task_group *tg = css_tg(of_css(of)); + u64 period = tg_get_cfs_period(tg); + u64 quota; + int ret; + + ret = cpu_period_quota_parse(buf, &period, "a); + if (!ret) + ret = tg_set_cfs_bandwidth(tg, period, quota); + return ret ?: nbytes; +} +#endif + +static struct cftype cpu_files[] = { + { + .name = "stat", + .flags = CFTYPE_NOT_ON_ROOT, + .seq_show = cpu_stat_show, + }, +#ifdef CONFIG_FAIR_GROUP_SCHED + { + .name = "weight", + .flags = CFTYPE_NOT_ON_ROOT, + .read_u64 = cpu_weight_read_u64, + .write_u64 = cpu_weight_write_u64, + }, + { + .name = "weight.nice", + .flags = CFTYPE_NOT_ON_ROOT, + .read_s64 = cpu_weight_nice_read_s64, + .write_s64 = cpu_weight_nice_write_s64, + }, +#endif +#ifdef CONFIG_CFS_BANDWIDTH + { + .name = "max", + .flags = CFTYPE_NOT_ON_ROOT, + .seq_show = cpu_max_show, + .write = cpu_max_write, + }, +#endif + { } /* terminate */ +}; + struct cgroup_subsys cpu_cgrp_subsys = { .css_alloc = cpu_cgroup_css_alloc, .css_online = cpu_cgroup_css_online, @@ -6687,7 +6856,9 @@ struct cgroup_subsys cpu_cgrp_subsys = { .can_attach = cpu_cgroup_can_attach, .attach = cpu_cgroup_attach, .legacy_cftypes = cpu_legacy_files, + .dfl_cftypes = cpu_files, .early_init = true, + .threaded = true, }; #endif /* CONFIG_CGROUP_SCHED */ -- cgit v1.2.3 From 8635d6b3afe68cdde2f646c2a3bbd8149c031e8c Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Sun, 1 Oct 2017 17:17:26 +0200 Subject: dt-bindings: hsi: add omap4 hsi controller bindings Update omap-ssi binding document to also cover the HSI compliant module from OMAP4. Signed-off-by: Tony Lindgren Acked-by: Rob Herring [dropped the omap.dtsi update and updated patch description accordingly] Signed-off-by: Sebastian Reichel --- Documentation/devicetree/bindings/hsi/omap-ssi.txt | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/hsi/omap-ssi.txt b/Documentation/devicetree/bindings/hsi/omap-ssi.txt index b8eca3c7810d..955e335e7e56 100644 --- a/Documentation/devicetree/bindings/hsi/omap-ssi.txt +++ b/Documentation/devicetree/bindings/hsi/omap-ssi.txt @@ -1,10 +1,12 @@ OMAP SSI controller bindings -OMAP Synchronous Serial Interface (SSI) controller implements a legacy -variant of MIPI's High Speed Synchronous Serial Interface (HSI). +OMAP3's Synchronous Serial Interface (SSI) controller implements a +legacy variant of MIPI's High Speed Synchronous Serial Interface (HSI), +while the controller found inside OMAP4 is supposed to be fully compliant +with the HSI standard. Required properties: -- compatible: Should include "ti,omap3-ssi". +- compatible: Should include "ti,omap3-ssi" or "ti,omap4-hsi" - reg-names: Contains the values "sys" and "gdd" (in this order). - reg: Contains a matching register specifier for each entry in reg-names. @@ -27,6 +29,7 @@ Each port is represented as a sub-node of the ti,omap3-ssi device. Required Port sub-node properties: - compatible: Should be set to the following value ti,omap3-ssi-port (applicable to OMAP34xx devices) + ti,omap4-hsi-port (applicable to OMAP44xx devices) - reg-names: Contains the values "tx" and "rx" (in this order). - reg: Contains a matching register specifier for each entry in reg-names. @@ -38,6 +41,10 @@ Required Port sub-node properties: property. If it's missing the port will not be enabled. +Optional properties: +- ti,hwmods: Shall contain TI interconnect module name if needed + by the SoC + Example for Nokia N900: ssi-controller@48058000 { -- cgit v1.2.3 From 9339fd348dd98ed64879a48dc7290cc3fa4e2911 Mon Sep 17 00:00:00 2001 From: Yury Norov Date: Wed, 13 Sep 2017 21:08:30 +0300 Subject: arm64: fix documentation on kernel pages mappings to HYP VA The Documentation/arm64/memory.txt says: When using KVM, the hypervisor maps kernel pages in EL2, at a fixed offset from the kernel VA (top 24bits of the kernel VA set to zero): In fact, kernel addresses are transleted to HYP with kern_hyp_va macro, which has more options, and none of them assumes clearing of top 24bits of the kernel VA. Acked-by: Marc Zyngier Signed-off-by: Yury Norov [will: removed gory details] Signed-off-by: Will Deacon --- Documentation/arm64/memory.txt | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/arm64/memory.txt b/Documentation/arm64/memory.txt index d7273a5f6456..671bc0639262 100644 --- a/Documentation/arm64/memory.txt +++ b/Documentation/arm64/memory.txt @@ -86,9 +86,9 @@ Translation table lookup with 64KB pages: +-------------------------------------------------> [63] TTBR0/1 -When using KVM, the hypervisor maps kernel pages in EL2, at a fixed -offset from the kernel VA (top 24bits of the kernel VA set to zero): +When using KVM without the Virtualization Host Extensions, the hypervisor +maps kernel pages in EL2 at a fixed offset from the kernel VA. See the +kern_hyp_va macro for more details. -Start End Size Use ------------------------------------------------------------------------ -0000004000000000 0000007fffffffff 256GB kernel objects mapped in HYP +When using KVM with the Virtualization Host Extensions, no additional +mappings are created, since the host kernel runs directly in EL2. -- cgit v1.2.3 From 19205da6a0da701787d42ad754edd1ffb514c956 Mon Sep 17 00:00:00 2001 From: Petr Mladek Date: Mon, 25 Sep 2017 17:41:59 +0200 Subject: livepatch: Small shadow variable documentation fixes The description of the basic operations was a bit inconsistent and based on older version of the patchset. Also the size of the spinlock structure should be allocated instead of the pointer. Signed-off-by: Petr Mladek Acked-by: Joe Lawrence Signed-off-by: Jiri Kosina --- Documentation/livepatch/shadow-vars.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/livepatch/shadow-vars.txt b/Documentation/livepatch/shadow-vars.txt index e3ffc4301bfa..89c66634d600 100644 --- a/Documentation/livepatch/shadow-vars.txt +++ b/Documentation/livepatch/shadow-vars.txt @@ -6,7 +6,7 @@ Shadow variables are a simple way for livepatch modules to associate additional "shadow" data with existing data structures. Shadow data is allocated separately from parent data structures, which are left unmodified. The shadow variable API described in this document is used -to allocate/attach and detach/release shadow variables to their parents. +to allocate/add and remove/free shadow variables to/from their parents. The implementation introduces a global, in-kernel hashtable that associates pointers to parent objects and a numeric identifier of the @@ -107,7 +107,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, sta = kzalloc(sizeof(*sta) + hw->sta_data_size, gfp); /* Attach a corresponding shadow variable, then initialize it */ - ps_lock = klp_shadow_alloc(sta, PS_LOCK, NULL, sizeof(ps_lock), gfp); + ps_lock = klp_shadow_alloc(sta, PS_LOCK, NULL, sizeof(*ps_lock), gfp); if (!ps_lock) goto shadow_fail; spin_lock_init(ps_lock); -- cgit v1.2.3 From dbfdd153d4aefec13460c97475737e59af92d8e2 Mon Sep 17 00:00:00 2001 From: Marco Franchi Date: Mon, 2 Oct 2017 10:45:30 -0300 Subject: dt-bindings: fsl-imx-drm: Remove incorrect "@di0" usage Improve the binding example by removing the '@di0' notation, which fixes the following build warning: Warning (unit_address_vs_reg): Node /display@di0 has a unit name, but no reg property Signed-off-by: Marco Franchi Signed-off-by: Philipp Zabel --- Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt b/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt index f79854783c2c..5bf77f6dd19d 100644 --- a/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt +++ b/Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt @@ -129,7 +129,7 @@ Optional properties: example: -display@di0 { +disp0 { compatible = "fsl,imx-parallel-display"; edid = [edid-data]; interface-pix-fmt = "rgb24"; -- cgit v1.2.3 From d1ff70241a275133e1a0258b7c23588b122276c8 Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Mon, 2 Oct 2017 13:38:34 +0300 Subject: thunderbolt: Add support for XDomain discovery protocol When two hosts are connected over a Thunderbolt cable, there is a protocol they can use to communicate capabilities supported by the host. The discovery protocol uses automatically configured control channel (ring 0) and is build on top of request/response transactions using special XDomain primitives provided by the Thunderbolt base protocol. The capabilities consists of a root directory block of basic properties used for identification of the host, and then there can be zero or more directories each describing a Thunderbolt service and its capabilities. Once both sides have discovered what is supported the two hosts can setup high-speed DMA paths and transfer data to the other side using whatever protocol was agreed based on the properties. The software protocol used to communicate which DMA paths to enable is service specific. This patch adds support for the XDomain discovery protocol to the Thunderbolt bus. We model each remote host connection as a Linux XDomain device. For each Thunderbolt service found supported on the XDomain device, we create Linux Thunderbolt service device which Thunderbolt service drivers can then bind to based on the protocol identification information retrieved from the property directory describing the service. This code is based on the work done by Amir Levy and Michael Jamet. Signed-off-by: Michael Jamet Signed-off-by: Mika Westerberg Reviewed-by: Yehezkel Bernat Reviewed-by: Andy Shevchenko Signed-off-by: David S. Miller --- Documentation/ABI/testing/sysfs-bus-thunderbolt | 48 + drivers/thunderbolt/Makefile | 2 +- drivers/thunderbolt/ctl.c | 11 +- drivers/thunderbolt/ctl.h | 2 +- drivers/thunderbolt/domain.c | 197 ++- drivers/thunderbolt/icm.c | 218 +++- drivers/thunderbolt/nhi.h | 2 + drivers/thunderbolt/switch.c | 7 +- drivers/thunderbolt/tb.h | 39 +- drivers/thunderbolt/tb_msgs.h | 123 ++ drivers/thunderbolt/xdomain.c | 1576 +++++++++++++++++++++++ include/linux/mod_devicetable.h | 26 + include/linux/thunderbolt.h | 242 ++++ scripts/mod/devicetable-offsets.c | 7 + scripts/mod/file2alias.c | 25 + 15 files changed, 2507 insertions(+), 18 deletions(-) create mode 100644 drivers/thunderbolt/xdomain.c (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt index 392bef5bd399..93798c02e28b 100644 --- a/Documentation/ABI/testing/sysfs-bus-thunderbolt +++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt @@ -110,3 +110,51 @@ Description: When new NVM image is written to the non-active NVM is directly the status value from the DMA configuration based mailbox before the device is power cycled. Writing 0 here clears the status. + +What: /sys/bus/thunderbolt/devices/./key +Date: Jan 2018 +KernelVersion: 4.15 +Contact: thunderbolt-software@lists.01.org +Description: This contains name of the property directory the XDomain + service exposes. This entry describes the protocol in + question. Following directories are already reserved by + the Apple XDomain specification: + + network: IP/ethernet over Thunderbolt + targetdm: Target disk mode protocol over Thunderbolt + extdisp: External display mode protocol over Thunderbolt + +What: /sys/bus/thunderbolt/devices/./modalias +Date: Jan 2018 +KernelVersion: 4.15 +Contact: thunderbolt-software@lists.01.org +Description: Stores the same MODALIAS value emitted by uevent for + the XDomain service. Format: tbtsvc:kSpNvNrN + +What: /sys/bus/thunderbolt/devices/./prtcid +Date: Jan 2018 +KernelVersion: 4.15 +Contact: thunderbolt-software@lists.01.org +Description: This contains XDomain protocol identifier the XDomain + service supports. + +What: /sys/bus/thunderbolt/devices/./prtcvers +Date: Jan 2018 +KernelVersion: 4.15 +Contact: thunderbolt-software@lists.01.org +Description: This contains XDomain protocol version the XDomain + service supports. + +What: /sys/bus/thunderbolt/devices/./prtcrevs +Date: Jan 2018 +KernelVersion: 4.15 +Contact: thunderbolt-software@lists.01.org +Description: This contains XDomain software version the XDomain + service supports. + +What: /sys/bus/thunderbolt/devices/./prtcstns +Date: Jan 2018 +KernelVersion: 4.15 +Contact: thunderbolt-software@lists.01.org +Description: This contains XDomain service specific settings as + bitmask. Format: %x diff --git a/drivers/thunderbolt/Makefile b/drivers/thunderbolt/Makefile index 7afd21f5383a..f2f0de27252b 100644 --- a/drivers/thunderbolt/Makefile +++ b/drivers/thunderbolt/Makefile @@ -1,3 +1,3 @@ obj-${CONFIG_THUNDERBOLT} := thunderbolt.o thunderbolt-objs := nhi.o ctl.o tb.o switch.o cap.o path.o tunnel_pci.o eeprom.o -thunderbolt-objs += domain.o dma_port.o icm.o property.o +thunderbolt-objs += domain.o dma_port.o icm.o property.o xdomain.o diff --git a/drivers/thunderbolt/ctl.c b/drivers/thunderbolt/ctl.c index e6a4c9458c76..46e393c5fd1d 100644 --- a/drivers/thunderbolt/ctl.c +++ b/drivers/thunderbolt/ctl.c @@ -368,10 +368,10 @@ static int tb_ctl_tx(struct tb_ctl *ctl, const void *data, size_t len, /** * tb_ctl_handle_event() - acknowledge a plug event, invoke ctl->callback */ -static void tb_ctl_handle_event(struct tb_ctl *ctl, enum tb_cfg_pkg_type type, +static bool tb_ctl_handle_event(struct tb_ctl *ctl, enum tb_cfg_pkg_type type, struct ctl_pkg *pkg, size_t size) { - ctl->callback(ctl->callback_data, type, pkg->buffer, size); + return ctl->callback(ctl->callback_data, type, pkg->buffer, size); } static void tb_ctl_rx_submit(struct ctl_pkg *pkg) @@ -444,6 +444,8 @@ static void tb_ctl_rx_callback(struct tb_ring *ring, struct ring_frame *frame, break; case TB_CFG_PKG_EVENT: + case TB_CFG_PKG_XDOMAIN_RESP: + case TB_CFG_PKG_XDOMAIN_REQ: if (*(__be32 *)(pkg->buffer + frame->size) != crc32) { tb_ctl_err(pkg->ctl, "RX: checksum mismatch, dropping packet\n"); @@ -451,8 +453,9 @@ static void tb_ctl_rx_callback(struct tb_ring *ring, struct ring_frame *frame, } /* Fall through */ case TB_CFG_PKG_ICM_EVENT: - tb_ctl_handle_event(pkg->ctl, frame->eof, pkg, frame->size); - goto rx; + if (tb_ctl_handle_event(pkg->ctl, frame->eof, pkg, frame->size)) + goto rx; + break; default: break; diff --git a/drivers/thunderbolt/ctl.h b/drivers/thunderbolt/ctl.h index d0f21e1e0b8b..85c49dd301ea 100644 --- a/drivers/thunderbolt/ctl.h +++ b/drivers/thunderbolt/ctl.h @@ -16,7 +16,7 @@ /* control channel */ struct tb_ctl; -typedef void (*event_cb)(void *data, enum tb_cfg_pkg_type type, +typedef bool (*event_cb)(void *data, enum tb_cfg_pkg_type type, const void *buf, size_t size); struct tb_ctl *tb_ctl_alloc(struct tb_nhi *nhi, event_cb cb, void *cb_data); diff --git a/drivers/thunderbolt/domain.c b/drivers/thunderbolt/domain.c index 9f2dcd48974d..9b90115319ce 100644 --- a/drivers/thunderbolt/domain.c +++ b/drivers/thunderbolt/domain.c @@ -20,6 +20,98 @@ static DEFINE_IDA(tb_domain_ida); +static bool match_service_id(const struct tb_service_id *id, + const struct tb_service *svc) +{ + if (id->match_flags & TBSVC_MATCH_PROTOCOL_KEY) { + if (strcmp(id->protocol_key, svc->key)) + return false; + } + + if (id->match_flags & TBSVC_MATCH_PROTOCOL_ID) { + if (id->protocol_id != svc->prtcid) + return false; + } + + if (id->match_flags & TBSVC_MATCH_PROTOCOL_VERSION) { + if (id->protocol_version != svc->prtcvers) + return false; + } + + if (id->match_flags & TBSVC_MATCH_PROTOCOL_VERSION) { + if (id->protocol_revision != svc->prtcrevs) + return false; + } + + return true; +} + +static const struct tb_service_id *__tb_service_match(struct device *dev, + struct device_driver *drv) +{ + struct tb_service_driver *driver; + const struct tb_service_id *ids; + struct tb_service *svc; + + svc = tb_to_service(dev); + if (!svc) + return NULL; + + driver = container_of(drv, struct tb_service_driver, driver); + if (!driver->id_table) + return NULL; + + for (ids = driver->id_table; ids->match_flags != 0; ids++) { + if (match_service_id(ids, svc)) + return ids; + } + + return NULL; +} + +static int tb_service_match(struct device *dev, struct device_driver *drv) +{ + return !!__tb_service_match(dev, drv); +} + +static int tb_service_probe(struct device *dev) +{ + struct tb_service *svc = tb_to_service(dev); + struct tb_service_driver *driver; + const struct tb_service_id *id; + + driver = container_of(dev->driver, struct tb_service_driver, driver); + id = __tb_service_match(dev, &driver->driver); + + return driver->probe(svc, id); +} + +static int tb_service_remove(struct device *dev) +{ + struct tb_service *svc = tb_to_service(dev); + struct tb_service_driver *driver; + + driver = container_of(dev->driver, struct tb_service_driver, driver); + if (driver->remove) + driver->remove(svc); + + return 0; +} + +static void tb_service_shutdown(struct device *dev) +{ + struct tb_service_driver *driver; + struct tb_service *svc; + + svc = tb_to_service(dev); + if (!svc || !dev->driver) + return; + + driver = container_of(dev->driver, struct tb_service_driver, driver); + if (driver->shutdown) + driver->shutdown(svc); +} + static const char * const tb_security_names[] = { [TB_SECURITY_NONE] = "none", [TB_SECURITY_USER] = "user", @@ -52,6 +144,10 @@ static const struct attribute_group *domain_attr_groups[] = { struct bus_type tb_bus_type = { .name = "thunderbolt", + .match = tb_service_match, + .probe = tb_service_probe, + .remove = tb_service_remove, + .shutdown = tb_service_shutdown, }; static void tb_domain_release(struct device *dev) @@ -128,17 +224,26 @@ err_free: return NULL; } -static void tb_domain_event_cb(void *data, enum tb_cfg_pkg_type type, +static bool tb_domain_event_cb(void *data, enum tb_cfg_pkg_type type, const void *buf, size_t size) { struct tb *tb = data; if (!tb->cm_ops->handle_event) { tb_warn(tb, "domain does not have event handler\n"); - return; + return true; } - tb->cm_ops->handle_event(tb, type, buf, size); + switch (type) { + case TB_CFG_PKG_XDOMAIN_REQ: + case TB_CFG_PKG_XDOMAIN_RESP: + return tb_xdomain_handle_request(tb, type, buf, size); + + default: + tb->cm_ops->handle_event(tb, type, buf, size); + } + + return true; } /** @@ -443,9 +548,92 @@ int tb_domain_disconnect_pcie_paths(struct tb *tb) return tb->cm_ops->disconnect_pcie_paths(tb); } +/** + * tb_domain_approve_xdomain_paths() - Enable DMA paths for XDomain + * @tb: Domain enabling the DMA paths + * @xd: XDomain DMA paths are created to + * + * Calls connection manager specific method to enable DMA paths to the + * XDomain in question. + * + * Return: 0% in case of success and negative errno otherwise. In + * particular returns %-ENOTSUPP if the connection manager + * implementation does not support XDomains. + */ +int tb_domain_approve_xdomain_paths(struct tb *tb, struct tb_xdomain *xd) +{ + if (!tb->cm_ops->approve_xdomain_paths) + return -ENOTSUPP; + + return tb->cm_ops->approve_xdomain_paths(tb, xd); +} + +/** + * tb_domain_disconnect_xdomain_paths() - Disable DMA paths for XDomain + * @tb: Domain disabling the DMA paths + * @xd: XDomain whose DMA paths are disconnected + * + * Calls connection manager specific method to disconnect DMA paths to + * the XDomain in question. + * + * Return: 0% in case of success and negative errno otherwise. In + * particular returns %-ENOTSUPP if the connection manager + * implementation does not support XDomains. + */ +int tb_domain_disconnect_xdomain_paths(struct tb *tb, struct tb_xdomain *xd) +{ + if (!tb->cm_ops->disconnect_xdomain_paths) + return -ENOTSUPP; + + return tb->cm_ops->disconnect_xdomain_paths(tb, xd); +} + +static int disconnect_xdomain(struct device *dev, void *data) +{ + struct tb_xdomain *xd; + struct tb *tb = data; + int ret = 0; + + xd = tb_to_xdomain(dev); + if (xd && xd->tb == tb) + ret = tb_xdomain_disable_paths(xd); + + return ret; +} + +/** + * tb_domain_disconnect_all_paths() - Disconnect all paths for the domain + * @tb: Domain whose paths are disconnected + * + * This function can be used to disconnect all paths (PCIe, XDomain) for + * example in preparation for host NVM firmware upgrade. After this is + * called the paths cannot be established without resetting the switch. + * + * Return: %0 in case of success and negative errno otherwise. + */ +int tb_domain_disconnect_all_paths(struct tb *tb) +{ + int ret; + + ret = tb_domain_disconnect_pcie_paths(tb); + if (ret) + return ret; + + return bus_for_each_dev(&tb_bus_type, NULL, tb, disconnect_xdomain); +} + int tb_domain_init(void) { - return bus_register(&tb_bus_type); + int ret; + + ret = tb_xdomain_init(); + if (ret) + return ret; + ret = bus_register(&tb_bus_type); + if (ret) + tb_xdomain_exit(); + + return ret; } void tb_domain_exit(void) @@ -453,4 +641,5 @@ void tb_domain_exit(void) bus_unregister(&tb_bus_type); ida_destroy(&tb_domain_ida); tb_switch_exit(); + tb_xdomain_exit(); } diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c index 8c22b91ed040..ab02d13f40b7 100644 --- a/drivers/thunderbolt/icm.c +++ b/drivers/thunderbolt/icm.c @@ -60,6 +60,8 @@ * @get_route: Find a route string for given switch * @device_connected: Handle device connected ICM message * @device_disconnected: Handle device disconnected ICM message + * @xdomain_connected - Handle XDomain connected ICM message + * @xdomain_disconnected - Handle XDomain disconnected ICM message */ struct icm { struct mutex request_lock; @@ -74,6 +76,10 @@ struct icm { const struct icm_pkg_header *hdr); void (*device_disconnected)(struct tb *tb, const struct icm_pkg_header *hdr); + void (*xdomain_connected)(struct tb *tb, + const struct icm_pkg_header *hdr); + void (*xdomain_disconnected)(struct tb *tb, + const struct icm_pkg_header *hdr); }; struct icm_notification { @@ -89,7 +95,10 @@ static inline struct tb *icm_to_tb(struct icm *icm) static inline u8 phy_port_from_route(u64 route, u8 depth) { - return tb_phy_port_from_link(route >> ((depth - 1) * 8)); + u8 link; + + link = depth ? route >> ((depth - 1) * 8) : route; + return tb_phy_port_from_link(link); } static inline u8 dual_link_from_link(u8 link) @@ -320,6 +329,51 @@ static int icm_fr_challenge_switch_key(struct tb *tb, struct tb_switch *sw, return 0; } +static int icm_fr_approve_xdomain_paths(struct tb *tb, struct tb_xdomain *xd) +{ + struct icm_fr_pkg_approve_xdomain_response reply; + struct icm_fr_pkg_approve_xdomain request; + int ret; + + memset(&request, 0, sizeof(request)); + request.hdr.code = ICM_APPROVE_XDOMAIN; + request.link_info = xd->depth << ICM_LINK_INFO_DEPTH_SHIFT | xd->link; + memcpy(&request.remote_uuid, xd->remote_uuid, sizeof(*xd->remote_uuid)); + + request.transmit_path = xd->transmit_path; + request.transmit_ring = xd->transmit_ring; + request.receive_path = xd->receive_path; + request.receive_ring = xd->receive_ring; + + memset(&reply, 0, sizeof(reply)); + ret = icm_request(tb, &request, sizeof(request), &reply, sizeof(reply), + 1, ICM_TIMEOUT); + if (ret) + return ret; + + if (reply.hdr.flags & ICM_FLAGS_ERROR) + return -EIO; + + return 0; +} + +static int icm_fr_disconnect_xdomain_paths(struct tb *tb, struct tb_xdomain *xd) +{ + u8 phy_port; + u8 cmd; + + phy_port = tb_phy_port_from_link(xd->link); + if (phy_port == 0) + cmd = NHI_MAILBOX_DISCONNECT_PA; + else + cmd = NHI_MAILBOX_DISCONNECT_PB; + + nhi_mailbox_cmd(tb->nhi, cmd, 1); + usleep_range(10, 50); + nhi_mailbox_cmd(tb->nhi, cmd, 2); + return 0; +} + static void remove_switch(struct tb_switch *sw) { struct tb_switch *parent_sw; @@ -475,6 +529,141 @@ icm_fr_device_disconnected(struct tb *tb, const struct icm_pkg_header *hdr) tb_switch_put(sw); } +static void remove_xdomain(struct tb_xdomain *xd) +{ + struct tb_switch *sw; + + sw = tb_to_switch(xd->dev.parent); + tb_port_at(xd->route, sw)->xdomain = NULL; + tb_xdomain_remove(xd); +} + +static void +icm_fr_xdomain_connected(struct tb *tb, const struct icm_pkg_header *hdr) +{ + const struct icm_fr_event_xdomain_connected *pkg = + (const struct icm_fr_event_xdomain_connected *)hdr; + struct tb_xdomain *xd; + struct tb_switch *sw; + u8 link, depth; + bool approved; + u64 route; + + /* + * After NVM upgrade adding root switch device fails because we + * initiated reset. During that time ICM might still send + * XDomain connected message which we ignore here. + */ + if (!tb->root_switch) + return; + + link = pkg->link_info & ICM_LINK_INFO_LINK_MASK; + depth = (pkg->link_info & ICM_LINK_INFO_DEPTH_MASK) >> + ICM_LINK_INFO_DEPTH_SHIFT; + approved = pkg->link_info & ICM_LINK_INFO_APPROVED; + + if (link > ICM_MAX_LINK || depth > ICM_MAX_DEPTH) { + tb_warn(tb, "invalid topology %u.%u, ignoring\n", link, depth); + return; + } + + route = get_route(pkg->local_route_hi, pkg->local_route_lo); + + xd = tb_xdomain_find_by_uuid(tb, &pkg->remote_uuid); + if (xd) { + u8 xd_phy_port, phy_port; + + xd_phy_port = phy_port_from_route(xd->route, xd->depth); + phy_port = phy_port_from_route(route, depth); + + if (xd->depth == depth && xd_phy_port == phy_port) { + xd->link = link; + xd->route = route; + xd->is_unplugged = false; + tb_xdomain_put(xd); + return; + } + + /* + * If we find an existing XDomain connection remove it + * now. We need to go through login handshake and + * everything anyway to be able to re-establish the + * connection. + */ + remove_xdomain(xd); + tb_xdomain_put(xd); + } + + /* + * Look if there already exists an XDomain in the same place + * than the new one and in that case remove it because it is + * most likely another host that got disconnected. + */ + xd = tb_xdomain_find_by_link_depth(tb, link, depth); + if (!xd) { + u8 dual_link; + + dual_link = dual_link_from_link(link); + if (dual_link) + xd = tb_xdomain_find_by_link_depth(tb, dual_link, + depth); + } + if (xd) { + remove_xdomain(xd); + tb_xdomain_put(xd); + } + + /* + * If the user disconnected a switch during suspend and + * connected another host to the same port, remove the switch + * first. + */ + sw = get_switch_at_route(tb->root_switch, route); + if (sw) + remove_switch(sw); + + sw = tb_switch_find_by_link_depth(tb, link, depth); + if (!sw) { + tb_warn(tb, "no switch exists at %u.%u, ignoring\n", link, + depth); + return; + } + + xd = tb_xdomain_alloc(sw->tb, &sw->dev, route, + &pkg->local_uuid, &pkg->remote_uuid); + if (!xd) { + tb_switch_put(sw); + return; + } + + xd->link = link; + xd->depth = depth; + + tb_port_at(route, sw)->xdomain = xd; + + tb_xdomain_add(xd); + tb_switch_put(sw); +} + +static void +icm_fr_xdomain_disconnected(struct tb *tb, const struct icm_pkg_header *hdr) +{ + const struct icm_fr_event_xdomain_disconnected *pkg = + (const struct icm_fr_event_xdomain_disconnected *)hdr; + struct tb_xdomain *xd; + + /* + * If the connection is through one or multiple devices, the + * XDomain device is removed along with them so it is fine if we + * cannot find it here. + */ + xd = tb_xdomain_find_by_uuid(tb, &pkg->remote_uuid); + if (xd) { + remove_xdomain(xd); + tb_xdomain_put(xd); + } +} + static struct pci_dev *get_upstream_port(struct pci_dev *pdev) { struct pci_dev *parent; @@ -594,6 +783,12 @@ static void icm_handle_notification(struct work_struct *work) case ICM_EVENT_DEVICE_DISCONNECTED: icm->device_disconnected(tb, n->pkg); break; + case ICM_EVENT_XDOMAIN_CONNECTED: + icm->xdomain_connected(tb, n->pkg); + break; + case ICM_EVENT_XDOMAIN_DISCONNECTED: + icm->xdomain_disconnected(tb, n->pkg); + break; } mutex_unlock(&tb->lock); @@ -927,6 +1122,10 @@ static void icm_unplug_children(struct tb_switch *sw) if (tb_is_upstream_port(port)) continue; + if (port->xdomain) { + port->xdomain->is_unplugged = true; + continue; + } if (!port->remote) continue; @@ -943,6 +1142,13 @@ static void icm_free_unplugged_children(struct tb_switch *sw) if (tb_is_upstream_port(port)) continue; + + if (port->xdomain && port->xdomain->is_unplugged) { + tb_xdomain_remove(port->xdomain); + port->xdomain = NULL; + continue; + } + if (!port->remote) continue; @@ -1009,8 +1215,10 @@ static int icm_start(struct tb *tb) tb->root_switch->no_nvm_upgrade = x86_apple_machine; ret = tb_switch_add(tb->root_switch); - if (ret) + if (ret) { tb_switch_put(tb->root_switch); + tb->root_switch = NULL; + } return ret; } @@ -1042,6 +1250,8 @@ static const struct tb_cm_ops icm_fr_ops = { .add_switch_key = icm_fr_add_switch_key, .challenge_switch_key = icm_fr_challenge_switch_key, .disconnect_pcie_paths = icm_disconnect_pcie_paths, + .approve_xdomain_paths = icm_fr_approve_xdomain_paths, + .disconnect_xdomain_paths = icm_fr_disconnect_xdomain_paths, }; struct tb *icm_probe(struct tb_nhi *nhi) @@ -1064,6 +1274,8 @@ struct tb *icm_probe(struct tb_nhi *nhi) icm->get_route = icm_fr_get_route; icm->device_connected = icm_fr_device_connected; icm->device_disconnected = icm_fr_device_disconnected; + icm->xdomain_connected = icm_fr_xdomain_connected; + icm->xdomain_disconnected = icm_fr_xdomain_disconnected; tb->cm_ops = &icm_fr_ops; break; @@ -1077,6 +1289,8 @@ struct tb *icm_probe(struct tb_nhi *nhi) icm->get_route = icm_ar_get_route; icm->device_connected = icm_fr_device_connected; icm->device_disconnected = icm_fr_device_disconnected; + icm->xdomain_connected = icm_fr_xdomain_connected; + icm->xdomain_disconnected = icm_fr_xdomain_disconnected; tb->cm_ops = &icm_fr_ops; break; } diff --git a/drivers/thunderbolt/nhi.h b/drivers/thunderbolt/nhi.h index 5b5bb2c436be..0e05828983db 100644 --- a/drivers/thunderbolt/nhi.h +++ b/drivers/thunderbolt/nhi.h @@ -157,6 +157,8 @@ enum nhi_mailbox_cmd { NHI_MAILBOX_SAVE_DEVS = 0x05, NHI_MAILBOX_DISCONNECT_PCIE_PATHS = 0x06, NHI_MAILBOX_DRV_UNLOADS = 0x07, + NHI_MAILBOX_DISCONNECT_PA = 0x10, + NHI_MAILBOX_DISCONNECT_PB = 0x11, NHI_MAILBOX_ALLOW_ALL_DEVS = 0x23, }; diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c index 53f40c57df59..dfc357d33e1e 100644 --- a/drivers/thunderbolt/switch.c +++ b/drivers/thunderbolt/switch.c @@ -171,11 +171,11 @@ static int nvm_authenticate_host(struct tb_switch *sw) /* * Root switch NVM upgrade requires that we disconnect the - * existing PCIe paths first (in case it is not in safe mode + * existing paths first (in case it is not in safe mode * already). */ if (!sw->safe_mode) { - ret = tb_domain_disconnect_pcie_paths(sw->tb); + ret = tb_domain_disconnect_all_paths(sw->tb); if (ret) return ret; /* @@ -1363,6 +1363,9 @@ void tb_switch_remove(struct tb_switch *sw) if (sw->ports[i].remote) tb_switch_remove(sw->ports[i].remote->sw); sw->ports[i].remote = NULL; + if (sw->ports[i].xdomain) + tb_xdomain_remove(sw->ports[i].xdomain); + sw->ports[i].xdomain = NULL; } if (!sw->is_unplugged) diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index ea21d927bd09..74af9d4929ab 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -9,6 +9,7 @@ #include #include +#include #include #include "tb_regs.h" @@ -109,14 +110,25 @@ struct tb_switch { /** * struct tb_port - a thunderbolt port, part of a tb_switch + * @config: Cached port configuration read from registers + * @sw: Switch the port belongs to + * @remote: Remote port (%NULL if not connected) + * @xdomain: Remote host (%NULL if not connected) + * @cap_phy: Offset, zero if not found + * @port: Port number on switch + * @disabled: Disabled by eeprom + * @dual_link_port: If the switch is connected using two ports, points + * to the other port. + * @link_nr: Is this primary or secondary port on the dual_link. */ struct tb_port { struct tb_regs_port_header config; struct tb_switch *sw; - struct tb_port *remote; /* remote port, NULL if not connected */ - int cap_phy; /* offset, zero if not found */ - u8 port; /* port number on switch */ - bool disabled; /* disabled by eeprom */ + struct tb_port *remote; + struct tb_xdomain *xdomain; + int cap_phy; + u8 port; + bool disabled; struct tb_port *dual_link_port; u8 link_nr:1; }; @@ -189,6 +201,8 @@ struct tb_path { * @add_switch_key: Add key to switch * @challenge_switch_key: Challenge switch using key * @disconnect_pcie_paths: Disconnects PCIe paths before NVM update + * @approve_xdomain_paths: Approve (establish) XDomain DMA paths + * @disconnect_xdomain_paths: Disconnect XDomain DMA paths */ struct tb_cm_ops { int (*driver_ready)(struct tb *tb); @@ -205,6 +219,8 @@ struct tb_cm_ops { int (*challenge_switch_key)(struct tb *tb, struct tb_switch *sw, const u8 *challenge, u8 *response); int (*disconnect_pcie_paths)(struct tb *tb); + int (*approve_xdomain_paths)(struct tb *tb, struct tb_xdomain *xd); + int (*disconnect_xdomain_paths)(struct tb *tb, struct tb_xdomain *xd); }; static inline void *tb_priv(struct tb *tb) @@ -331,6 +347,8 @@ extern struct device_type tb_switch_type; int tb_domain_init(void); void tb_domain_exit(void); void tb_switch_exit(void); +int tb_xdomain_init(void); +void tb_xdomain_exit(void); struct tb *tb_domain_alloc(struct tb_nhi *nhi, size_t privsize); int tb_domain_add(struct tb *tb); @@ -343,6 +361,9 @@ int tb_domain_approve_switch(struct tb *tb, struct tb_switch *sw); int tb_domain_approve_switch_key(struct tb *tb, struct tb_switch *sw); int tb_domain_challenge_switch_key(struct tb *tb, struct tb_switch *sw); int tb_domain_disconnect_pcie_paths(struct tb *tb); +int tb_domain_approve_xdomain_paths(struct tb *tb, struct tb_xdomain *xd); +int tb_domain_disconnect_xdomain_paths(struct tb *tb, struct tb_xdomain *xd); +int tb_domain_disconnect_all_paths(struct tb *tb); static inline void tb_domain_put(struct tb *tb) { @@ -422,4 +443,14 @@ static inline u64 tb_downstream_route(struct tb_port *port) | ((u64) port->port << (port->sw->config.depth * 8)); } +bool tb_xdomain_handle_request(struct tb *tb, enum tb_cfg_pkg_type type, + const void *buf, size_t size); +struct tb_xdomain *tb_xdomain_alloc(struct tb *tb, struct device *parent, + u64 route, const uuid_t *local_uuid, + const uuid_t *remote_uuid); +void tb_xdomain_add(struct tb_xdomain *xd); +void tb_xdomain_remove(struct tb_xdomain *xd); +struct tb_xdomain *tb_xdomain_find_by_link_depth(struct tb *tb, u8 link, + u8 depth); + #endif diff --git a/drivers/thunderbolt/tb_msgs.h b/drivers/thunderbolt/tb_msgs.h index f2b2550cd97c..b0a092baa605 100644 --- a/drivers/thunderbolt/tb_msgs.h +++ b/drivers/thunderbolt/tb_msgs.h @@ -101,11 +101,14 @@ enum icm_pkg_code { ICM_CHALLENGE_DEVICE = 0x5, ICM_ADD_DEVICE_KEY = 0x6, ICM_GET_ROUTE = 0xa, + ICM_APPROVE_XDOMAIN = 0x10, }; enum icm_event_code { ICM_EVENT_DEVICE_CONNECTED = 3, ICM_EVENT_DEVICE_DISCONNECTED = 4, + ICM_EVENT_XDOMAIN_CONNECTED = 6, + ICM_EVENT_XDOMAIN_DISCONNECTED = 7, }; struct icm_pkg_header { @@ -188,6 +191,25 @@ struct icm_fr_event_device_disconnected { u16 link_info; }; +struct icm_fr_event_xdomain_connected { + struct icm_pkg_header hdr; + u16 reserved; + u16 link_info; + uuid_t remote_uuid; + uuid_t local_uuid; + u32 local_route_hi; + u32 local_route_lo; + u32 remote_route_hi; + u32 remote_route_lo; +}; + +struct icm_fr_event_xdomain_disconnected { + struct icm_pkg_header hdr; + u16 reserved; + u16 link_info; + uuid_t remote_uuid; +}; + struct icm_fr_pkg_add_device_key { struct icm_pkg_header hdr; uuid_t ep_uuid; @@ -224,6 +246,28 @@ struct icm_fr_pkg_challenge_device_response { u32 response[8]; }; +struct icm_fr_pkg_approve_xdomain { + struct icm_pkg_header hdr; + u16 reserved; + u16 link_info; + uuid_t remote_uuid; + u16 transmit_path; + u16 transmit_ring; + u16 receive_path; + u16 receive_ring; +}; + +struct icm_fr_pkg_approve_xdomain_response { + struct icm_pkg_header hdr; + u16 reserved; + u16 link_info; + uuid_t remote_uuid; + u16 transmit_path; + u16 transmit_ring; + u16 receive_path; + u16 receive_ring; +}; + /* Alpine Ridge only messages */ struct icm_ar_pkg_get_route { @@ -240,4 +284,83 @@ struct icm_ar_pkg_get_route_response { u32 route_lo; }; +/* XDomain messages */ + +struct tb_xdomain_header { + u32 route_hi; + u32 route_lo; + u32 length_sn; +}; + +#define TB_XDOMAIN_LENGTH_MASK GENMASK(5, 0) +#define TB_XDOMAIN_SN_MASK GENMASK(28, 27) +#define TB_XDOMAIN_SN_SHIFT 27 + +enum tb_xdp_type { + UUID_REQUEST_OLD = 1, + UUID_RESPONSE = 2, + PROPERTIES_REQUEST, + PROPERTIES_RESPONSE, + PROPERTIES_CHANGED_REQUEST, + PROPERTIES_CHANGED_RESPONSE, + ERROR_RESPONSE, + UUID_REQUEST = 12, +}; + +struct tb_xdp_header { + struct tb_xdomain_header xd_hdr; + uuid_t uuid; + u32 type; +}; + +struct tb_xdp_properties { + struct tb_xdp_header hdr; + uuid_t src_uuid; + uuid_t dst_uuid; + u16 offset; + u16 reserved; +}; + +struct tb_xdp_properties_response { + struct tb_xdp_header hdr; + uuid_t src_uuid; + uuid_t dst_uuid; + u16 offset; + u16 data_length; + u32 generation; + u32 data[0]; +}; + +/* + * Max length of data array single XDomain property response is allowed + * to carry. + */ +#define TB_XDP_PROPERTIES_MAX_DATA_LENGTH \ + (((256 - 4 - sizeof(struct tb_xdp_properties_response))) / 4) + +/* Maximum size of the total property block in dwords we allow */ +#define TB_XDP_PROPERTIES_MAX_LENGTH 500 + +struct tb_xdp_properties_changed { + struct tb_xdp_header hdr; + uuid_t src_uuid; +}; + +struct tb_xdp_properties_changed_response { + struct tb_xdp_header hdr; +}; + +enum tb_xdp_error { + ERROR_SUCCESS, + ERROR_UNKNOWN_PACKET, + ERROR_UNKNOWN_DOMAIN, + ERROR_NOT_SUPPORTED, + ERROR_NOT_READY, +}; + +struct tb_xdp_error_response { + struct tb_xdp_header hdr; + u32 error; +}; + #endif diff --git a/drivers/thunderbolt/xdomain.c b/drivers/thunderbolt/xdomain.c new file mode 100644 index 000000000000..f2d06f6f7be9 --- /dev/null +++ b/drivers/thunderbolt/xdomain.c @@ -0,0 +1,1576 @@ +/* + * Thunderbolt XDomain discovery protocol support + * + * Copyright (C) 2017, Intel Corporation + * Authors: Michael Jamet + * Mika Westerberg + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include + +#include "tb.h" + +#define XDOMAIN_DEFAULT_TIMEOUT 5000 /* ms */ +#define XDOMAIN_PROPERTIES_RETRIES 60 +#define XDOMAIN_PROPERTIES_CHANGED_RETRIES 10 + +struct xdomain_request_work { + struct work_struct work; + struct tb_xdp_header *pkg; + struct tb *tb; +}; + +/* Serializes access to the properties and protocol handlers below */ +static DEFINE_MUTEX(xdomain_lock); + +/* Properties exposed to the remote domains */ +static struct tb_property_dir *xdomain_property_dir; +static u32 *xdomain_property_block; +static u32 xdomain_property_block_len; +static u32 xdomain_property_block_gen; + +/* Additional protocol handlers */ +static LIST_HEAD(protocol_handlers); + +/* UUID for XDomain discovery protocol: b638d70e-42ff-40bb-97c2-90e2c0b2ff07 */ +static const uuid_t tb_xdp_uuid = + UUID_INIT(0xb638d70e, 0x42ff, 0x40bb, + 0x97, 0xc2, 0x90, 0xe2, 0xc0, 0xb2, 0xff, 0x07); + +static bool tb_xdomain_match(const struct tb_cfg_request *req, + const struct ctl_pkg *pkg) +{ + switch (pkg->frame.eof) { + case TB_CFG_PKG_ERROR: + return true; + + case TB_CFG_PKG_XDOMAIN_RESP: { + const struct tb_xdp_header *res_hdr = pkg->buffer; + const struct tb_xdp_header *req_hdr = req->request; + u8 req_seq, res_seq; + + if (pkg->frame.size < req->response_size / 4) + return false; + + /* Make sure route matches */ + if ((res_hdr->xd_hdr.route_hi & ~BIT(31)) != + req_hdr->xd_hdr.route_hi) + return false; + if ((res_hdr->xd_hdr.route_lo) != req_hdr->xd_hdr.route_lo) + return false; + + /* Then check that the sequence number matches */ + res_seq = res_hdr->xd_hdr.length_sn & TB_XDOMAIN_SN_MASK; + res_seq >>= TB_XDOMAIN_SN_SHIFT; + req_seq = req_hdr->xd_hdr.length_sn & TB_XDOMAIN_SN_MASK; + req_seq >>= TB_XDOMAIN_SN_SHIFT; + if (res_seq != req_seq) + return false; + + /* Check that the XDomain protocol matches */ + if (!uuid_equal(&res_hdr->uuid, &req_hdr->uuid)) + return false; + + return true; + } + + default: + return false; + } +} + +static bool tb_xdomain_copy(struct tb_cfg_request *req, + const struct ctl_pkg *pkg) +{ + memcpy(req->response, pkg->buffer, req->response_size); + req->result.err = 0; + return true; +} + +static void response_ready(void *data) +{ + tb_cfg_request_put(data); +} + +static int __tb_xdomain_response(struct tb_ctl *ctl, const void *response, + size_t size, enum tb_cfg_pkg_type type) +{ + struct tb_cfg_request *req; + + req = tb_cfg_request_alloc(); + if (!req) + return -ENOMEM; + + req->match = tb_xdomain_match; + req->copy = tb_xdomain_copy; + req->request = response; + req->request_size = size; + req->request_type = type; + + return tb_cfg_request(ctl, req, response_ready, req); +} + +/** + * tb_xdomain_response() - Send a XDomain response message + * @xd: XDomain to send the message + * @response: Response to send + * @size: Size of the response + * @type: PDF type of the response + * + * This can be used to send a XDomain response message to the other + * domain. No response for the message is expected. + * + * Return: %0 in case of success and negative errno in case of failure + */ +int tb_xdomain_response(struct tb_xdomain *xd, const void *response, + size_t size, enum tb_cfg_pkg_type type) +{ + return __tb_xdomain_response(xd->tb->ctl, response, size, type); +} +EXPORT_SYMBOL_GPL(tb_xdomain_response); + +static int __tb_xdomain_request(struct tb_ctl *ctl, const void *request, + size_t request_size, enum tb_cfg_pkg_type request_type, void *response, + size_t response_size, enum tb_cfg_pkg_type response_type, + unsigned int timeout_msec) +{ + struct tb_cfg_request *req; + struct tb_cfg_result res; + + req = tb_cfg_request_alloc(); + if (!req) + return -ENOMEM; + + req->match = tb_xdomain_match; + req->copy = tb_xdomain_copy; + req->request = request; + req->request_size = request_size; + req->request_type = request_type; + req->response = response; + req->response_size = response_size; + req->response_type = response_type; + + res = tb_cfg_request_sync(ctl, req, timeout_msec); + + tb_cfg_request_put(req); + + return res.err == 1 ? -EIO : res.err; +} + +/** + * tb_xdomain_request() - Send a XDomain request + * @xd: XDomain to send the request + * @request: Request to send + * @request_size: Size of the request in bytes + * @request_type: PDF type of the request + * @response: Response is copied here + * @response_size: Expected size of the response in bytes + * @response_type: Expected PDF type of the response + * @timeout_msec: Timeout in milliseconds to wait for the response + * + * This function can be used to send XDomain control channel messages to + * the other domain. The function waits until the response is received + * or when timeout triggers. Whichever comes first. + * + * Return: %0 in case of success and negative errno in case of failure + */ +int tb_xdomain_request(struct tb_xdomain *xd, const void *request, + size_t request_size, enum tb_cfg_pkg_type request_type, + void *response, size_t response_size, + enum tb_cfg_pkg_type response_type, unsigned int timeout_msec) +{ + return __tb_xdomain_request(xd->tb->ctl, request, request_size, + request_type, response, response_size, + response_type, timeout_msec); +} +EXPORT_SYMBOL_GPL(tb_xdomain_request); + +static inline void tb_xdp_fill_header(struct tb_xdp_header *hdr, u64 route, + u8 sequence, enum tb_xdp_type type, size_t size) +{ + u32 length_sn; + + length_sn = (size - sizeof(hdr->xd_hdr)) / 4; + length_sn |= (sequence << TB_XDOMAIN_SN_SHIFT) & TB_XDOMAIN_SN_MASK; + + hdr->xd_hdr.route_hi = upper_32_bits(route); + hdr->xd_hdr.route_lo = lower_32_bits(route); + hdr->xd_hdr.length_sn = length_sn; + hdr->type = type; + memcpy(&hdr->uuid, &tb_xdp_uuid, sizeof(tb_xdp_uuid)); +} + +static int tb_xdp_handle_error(const struct tb_xdp_header *hdr) +{ + const struct tb_xdp_error_response *error; + + if (hdr->type != ERROR_RESPONSE) + return 0; + + error = (const struct tb_xdp_error_response *)hdr; + + switch (error->error) { + case ERROR_UNKNOWN_PACKET: + case ERROR_UNKNOWN_DOMAIN: + return -EIO; + case ERROR_NOT_SUPPORTED: + return -ENOTSUPP; + case ERROR_NOT_READY: + return -EAGAIN; + default: + break; + } + + return 0; +} + +static int tb_xdp_error_response(struct tb_ctl *ctl, u64 route, u8 sequence, + enum tb_xdp_error error) +{ + struct tb_xdp_error_response res; + + memset(&res, 0, sizeof(res)); + tb_xdp_fill_header(&res.hdr, route, sequence, ERROR_RESPONSE, + sizeof(res)); + res.error = error; + + return __tb_xdomain_response(ctl, &res, sizeof(res), + TB_CFG_PKG_XDOMAIN_RESP); +} + +static int tb_xdp_properties_request(struct tb_ctl *ctl, u64 route, + const uuid_t *src_uuid, const uuid_t *dst_uuid, int retry, + u32 **block, u32 *generation) +{ + struct tb_xdp_properties_response *res; + struct tb_xdp_properties req; + u16 data_len, len; + size_t total_size; + u32 *data = NULL; + int ret; + + total_size = sizeof(*res) + TB_XDP_PROPERTIES_MAX_DATA_LENGTH * 4; + res = kzalloc(total_size, GFP_KERNEL); + if (!res) + return -ENOMEM; + + memset(&req, 0, sizeof(req)); + tb_xdp_fill_header(&req.hdr, route, retry % 4, PROPERTIES_REQUEST, + sizeof(req)); + memcpy(&req.src_uuid, src_uuid, sizeof(*src_uuid)); + memcpy(&req.dst_uuid, dst_uuid, sizeof(*dst_uuid)); + + len = 0; + data_len = 0; + + do { + ret = __tb_xdomain_request(ctl, &req, sizeof(req), + TB_CFG_PKG_XDOMAIN_REQ, res, + total_size, TB_CFG_PKG_XDOMAIN_RESP, + XDOMAIN_DEFAULT_TIMEOUT); + if (ret) + goto err; + + ret = tb_xdp_handle_error(&res->hdr); + if (ret) + goto err; + + /* + * Package length includes the whole payload without the + * XDomain header. Validate first that the package is at + * least size of the response structure. + */ + len = res->hdr.xd_hdr.length_sn & TB_XDOMAIN_LENGTH_MASK; + if (len < sizeof(*res) / 4) { + ret = -EINVAL; + goto err; + } + + len += sizeof(res->hdr.xd_hdr) / 4; + len -= sizeof(*res) / 4; + + if (res->offset != req.offset) { + ret = -EINVAL; + goto err; + } + + /* + * First time allocate block that has enough space for + * the whole properties block. + */ + if (!data) { + data_len = res->data_length; + if (data_len > TB_XDP_PROPERTIES_MAX_LENGTH) { + ret = -E2BIG; + goto err; + } + + data = kcalloc(data_len, sizeof(u32), GFP_KERNEL); + if (!data) { + ret = -ENOMEM; + goto err; + } + } + + memcpy(data + req.offset, res->data, len * 4); + req.offset += len; + } while (!data_len || req.offset < data_len); + + *block = data; + *generation = res->generation; + + kfree(res); + + return data_len; + +err: + kfree(data); + kfree(res); + + return ret; +} + +static int tb_xdp_properties_response(struct tb *tb, struct tb_ctl *ctl, + u64 route, u8 sequence, const uuid_t *src_uuid, + const struct tb_xdp_properties *req) +{ + struct tb_xdp_properties_response *res; + size_t total_size; + u16 len; + int ret; + + /* + * Currently we expect all requests to be directed to us. The + * protocol supports forwarding, though which we might add + * support later on. + */ + if (!uuid_equal(src_uuid, &req->dst_uuid)) { + tb_xdp_error_response(ctl, route, sequence, + ERROR_UNKNOWN_DOMAIN); + return 0; + } + + mutex_lock(&xdomain_lock); + + if (req->offset >= xdomain_property_block_len) { + mutex_unlock(&xdomain_lock); + return -EINVAL; + } + + len = xdomain_property_block_len - req->offset; + len = min_t(u16, len, TB_XDP_PROPERTIES_MAX_DATA_LENGTH); + total_size = sizeof(*res) + len * 4; + + res = kzalloc(total_size, GFP_KERNEL); + if (!res) { + mutex_unlock(&xdomain_lock); + return -ENOMEM; + } + + tb_xdp_fill_header(&res->hdr, route, sequence, PROPERTIES_RESPONSE, + total_size); + res->generation = xdomain_property_block_gen; + res->data_length = xdomain_property_block_len; + res->offset = req->offset; + uuid_copy(&res->src_uuid, src_uuid); + uuid_copy(&res->dst_uuid, &req->src_uuid); + memcpy(res->data, &xdomain_property_block[req->offset], len * 4); + + mutex_unlock(&xdomain_lock); + + ret = __tb_xdomain_response(ctl, res, total_size, + TB_CFG_PKG_XDOMAIN_RESP); + + kfree(res); + return ret; +} + +static int tb_xdp_properties_changed_request(struct tb_ctl *ctl, u64 route, + int retry, const uuid_t *uuid) +{ + struct tb_xdp_properties_changed_response res; + struct tb_xdp_properties_changed req; + int ret; + + memset(&req, 0, sizeof(req)); + tb_xdp_fill_header(&req.hdr, route, retry % 4, + PROPERTIES_CHANGED_REQUEST, sizeof(req)); + uuid_copy(&req.src_uuid, uuid); + + memset(&res, 0, sizeof(res)); + ret = __tb_xdomain_request(ctl, &req, sizeof(req), + TB_CFG_PKG_XDOMAIN_REQ, &res, sizeof(res), + TB_CFG_PKG_XDOMAIN_RESP, + XDOMAIN_DEFAULT_TIMEOUT); + if (ret) + return ret; + + return tb_xdp_handle_error(&res.hdr); +} + +static int +tb_xdp_properties_changed_response(struct tb_ctl *ctl, u64 route, u8 sequence) +{ + struct tb_xdp_properties_changed_response res; + + memset(&res, 0, sizeof(res)); + tb_xdp_fill_header(&res.hdr, route, sequence, + PROPERTIES_CHANGED_RESPONSE, sizeof(res)); + return __tb_xdomain_response(ctl, &res, sizeof(res), + TB_CFG_PKG_XDOMAIN_RESP); +} + +/** + * tb_register_protocol_handler() - Register protocol handler + * @handler: Handler to register + * + * This allows XDomain service drivers to hook into incoming XDomain + * messages. After this function is called the service driver needs to + * be able to handle calls to callback whenever a package with the + * registered protocol is received. + */ +int tb_register_protocol_handler(struct tb_protocol_handler *handler) +{ + if (!handler->uuid || !handler->callback) + return -EINVAL; + if (uuid_equal(handler->uuid, &tb_xdp_uuid)) + return -EINVAL; + + mutex_lock(&xdomain_lock); + list_add_tail(&handler->list, &protocol_handlers); + mutex_unlock(&xdomain_lock); + + return 0; +} +EXPORT_SYMBOL_GPL(tb_register_protocol_handler); + +/** + * tb_unregister_protocol_handler() - Unregister protocol handler + * @handler: Handler to unregister + * + * Removes the previously registered protocol handler. + */ +void tb_unregister_protocol_handler(struct tb_protocol_handler *handler) +{ + mutex_lock(&xdomain_lock); + list_del_init(&handler->list); + mutex_unlock(&xdomain_lock); +} +EXPORT_SYMBOL_GPL(tb_unregister_protocol_handler); + +static void tb_xdp_handle_request(struct work_struct *work) +{ + struct xdomain_request_work *xw = container_of(work, typeof(*xw), work); + const struct tb_xdp_header *pkg = xw->pkg; + const struct tb_xdomain_header *xhdr = &pkg->xd_hdr; + struct tb *tb = xw->tb; + struct tb_ctl *ctl = tb->ctl; + const uuid_t *uuid; + int ret = 0; + u8 sequence; + u64 route; + + route = ((u64)xhdr->route_hi << 32 | xhdr->route_lo) & ~BIT_ULL(63); + sequence = xhdr->length_sn & TB_XDOMAIN_SN_MASK; + sequence >>= TB_XDOMAIN_SN_SHIFT; + + mutex_lock(&tb->lock); + if (tb->root_switch) + uuid = tb->root_switch->uuid; + else + uuid = NULL; + mutex_unlock(&tb->lock); + + if (!uuid) { + tb_xdp_error_response(ctl, route, sequence, ERROR_NOT_READY); + goto out; + } + + switch (pkg->type) { + case PROPERTIES_REQUEST: + ret = tb_xdp_properties_response(tb, ctl, route, sequence, uuid, + (const struct tb_xdp_properties *)pkg); + break; + + case PROPERTIES_CHANGED_REQUEST: { + const struct tb_xdp_properties_changed *xchg = + (const struct tb_xdp_properties_changed *)pkg; + struct tb_xdomain *xd; + + ret = tb_xdp_properties_changed_response(ctl, route, sequence); + + /* + * Since the properties have been changed, let's update + * the xdomain related to this connection as well in + * case there is a change in services it offers. + */ + xd = tb_xdomain_find_by_uuid_locked(tb, &xchg->src_uuid); + if (xd) { + queue_delayed_work(tb->wq, &xd->get_properties_work, + msecs_to_jiffies(50)); + tb_xdomain_put(xd); + } + + break; + } + + default: + break; + } + + if (ret) { + tb_warn(tb, "failed to send XDomain response for %#x\n", + pkg->type); + } + +out: + kfree(xw->pkg); + kfree(xw); +} + +static void +tb_xdp_schedule_request(struct tb *tb, const struct tb_xdp_header *hdr, + size_t size) +{ + struct xdomain_request_work *xw; + + xw = kmalloc(sizeof(*xw), GFP_KERNEL); + if (!xw) + return; + + INIT_WORK(&xw->work, tb_xdp_handle_request); + xw->pkg = kmemdup(hdr, size, GFP_KERNEL); + xw->tb = tb; + + queue_work(tb->wq, &xw->work); +} + +/** + * tb_register_service_driver() - Register XDomain service driver + * @drv: Driver to register + * + * Registers new service driver from @drv to the bus. + */ +int tb_register_service_driver(struct tb_service_driver *drv) +{ + drv->driver.bus = &tb_bus_type; + return driver_register(&drv->driver); +} +EXPORT_SYMBOL_GPL(tb_register_service_driver); + +/** + * tb_unregister_service_driver() - Unregister XDomain service driver + * @xdrv: Driver to unregister + * + * Unregisters XDomain service driver from the bus. + */ +void tb_unregister_service_driver(struct tb_service_driver *drv) +{ + driver_unregister(&drv->driver); +} +EXPORT_SYMBOL_GPL(tb_unregister_service_driver); + +static ssize_t key_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct tb_service *svc = container_of(dev, struct tb_service, dev); + + /* + * It should be null terminated but anything else is pretty much + * allowed. + */ + return sprintf(buf, "%*pEp\n", (int)strlen(svc->key), svc->key); +} +static DEVICE_ATTR_RO(key); + +static int get_modalias(struct tb_service *svc, char *buf, size_t size) +{ + return snprintf(buf, size, "tbsvc:k%sp%08Xv%08Xr%08X", svc->key, + svc->prtcid, svc->prtcvers, svc->prtcrevs); +} + +static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct tb_service *svc = container_of(dev, struct tb_service, dev); + + /* Full buffer size except new line and null termination */ + get_modalias(svc, buf, PAGE_SIZE - 2); + return sprintf(buf, "%s\n", buf); +} +static DEVICE_ATTR_RO(modalias); + +static ssize_t prtcid_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct tb_service *svc = container_of(dev, struct tb_service, dev); + + return sprintf(buf, "%u\n", svc->prtcid); +} +static DEVICE_ATTR_RO(prtcid); + +static ssize_t prtcvers_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct tb_service *svc = container_of(dev, struct tb_service, dev); + + return sprintf(buf, "%u\n", svc->prtcvers); +} +static DEVICE_ATTR_RO(prtcvers); + +static ssize_t prtcrevs_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct tb_service *svc = container_of(dev, struct tb_service, dev); + + return sprintf(buf, "%u\n", svc->prtcrevs); +} +static DEVICE_ATTR_RO(prtcrevs); + +static ssize_t prtcstns_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct tb_service *svc = container_of(dev, struct tb_service, dev); + + return sprintf(buf, "0x%08x\n", svc->prtcstns); +} +static DEVICE_ATTR_RO(prtcstns); + +static struct attribute *tb_service_attrs[] = { + &dev_attr_key.attr, + &dev_attr_modalias.attr, + &dev_attr_prtcid.attr, + &dev_attr_prtcvers.attr, + &dev_attr_prtcrevs.attr, + &dev_attr_prtcstns.attr, + NULL, +}; + +static struct attribute_group tb_service_attr_group = { + .attrs = tb_service_attrs, +}; + +static const struct attribute_group *tb_service_attr_groups[] = { + &tb_service_attr_group, + NULL, +}; + +static int tb_service_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + struct tb_service *svc = container_of(dev, struct tb_service, dev); + char modalias[64]; + + get_modalias(svc, modalias, sizeof(modalias)); + return add_uevent_var(env, "MODALIAS=%s", modalias); +} + +static void tb_service_release(struct device *dev) +{ + struct tb_service *svc = container_of(dev, struct tb_service, dev); + struct tb_xdomain *xd = tb_service_parent(svc); + + ida_simple_remove(&xd->service_ids, svc->id); + kfree(svc->key); + kfree(svc); +} + +struct device_type tb_service_type = { + .name = "thunderbolt_service", + .groups = tb_service_attr_groups, + .uevent = tb_service_uevent, + .release = tb_service_release, +}; +EXPORT_SYMBOL_GPL(tb_service_type); + +static int remove_missing_service(struct device *dev, void *data) +{ + struct tb_xdomain *xd = data; + struct tb_service *svc; + + svc = tb_to_service(dev); + if (!svc) + return 0; + + if (!tb_property_find(xd->properties, svc->key, + TB_PROPERTY_TYPE_DIRECTORY)) + device_unregister(dev); + + return 0; +} + +static int find_service(struct device *dev, void *data) +{ + const struct tb_property *p = data; + struct tb_service *svc; + + svc = tb_to_service(dev); + if (!svc) + return 0; + + return !strcmp(svc->key, p->key); +} + +static int populate_service(struct tb_service *svc, + struct tb_property *property) +{ + struct tb_property_dir *dir = property->value.dir; + struct tb_property *p; + + /* Fill in standard properties */ + p = tb_property_find(dir, "prtcid", TB_PROPERTY_TYPE_VALUE); + if (p) + svc->prtcid = p->value.immediate; + p = tb_property_find(dir, "prtcvers", TB_PROPERTY_TYPE_VALUE); + if (p) + svc->prtcvers = p->value.immediate; + p = tb_property_find(dir, "prtcrevs", TB_PROPERTY_TYPE_VALUE); + if (p) + svc->prtcrevs = p->value.immediate; + p = tb_property_find(dir, "prtcstns", TB_PROPERTY_TYPE_VALUE); + if (p) + svc->prtcstns = p->value.immediate; + + svc->key = kstrdup(property->key, GFP_KERNEL); + if (!svc->key) + return -ENOMEM; + + return 0; +} + +static void enumerate_services(struct tb_xdomain *xd) +{ + struct tb_service *svc; + struct tb_property *p; + struct device *dev; + + /* + * First remove all services that are not available anymore in + * the updated property block. + */ + device_for_each_child_reverse(&xd->dev, xd, remove_missing_service); + + /* Then re-enumerate properties creating new services as we go */ + tb_property_for_each(xd->properties, p) { + if (p->type != TB_PROPERTY_TYPE_DIRECTORY) + continue; + + /* If the service exists already we are fine */ + dev = device_find_child(&xd->dev, p, find_service); + if (dev) { + put_device(dev); + continue; + } + + svc = kzalloc(sizeof(*svc), GFP_KERNEL); + if (!svc) + break; + + if (populate_service(svc, p)) { + kfree(svc); + break; + } + + svc->id = ida_simple_get(&xd->service_ids, 0, 0, GFP_KERNEL); + svc->dev.bus = &tb_bus_type; + svc->dev.type = &tb_service_type; + svc->dev.parent = &xd->dev; + dev_set_name(&svc->dev, "%s.%d", dev_name(&xd->dev), svc->id); + + if (device_register(&svc->dev)) { + put_device(&svc->dev); + break; + } + } +} + +static int populate_properties(struct tb_xdomain *xd, + struct tb_property_dir *dir) +{ + const struct tb_property *p; + + /* Required properties */ + p = tb_property_find(dir, "deviceid", TB_PROPERTY_TYPE_VALUE); + if (!p) + return -EINVAL; + xd->device = p->value.immediate; + + p = tb_property_find(dir, "vendorid", TB_PROPERTY_TYPE_VALUE); + if (!p) + return -EINVAL; + xd->vendor = p->value.immediate; + + kfree(xd->device_name); + xd->device_name = NULL; + kfree(xd->vendor_name); + xd->vendor_name = NULL; + + /* Optional properties */ + p = tb_property_find(dir, "deviceid", TB_PROPERTY_TYPE_TEXT); + if (p) + xd->device_name = kstrdup(p->value.text, GFP_KERNEL); + p = tb_property_find(dir, "vendorid", TB_PROPERTY_TYPE_TEXT); + if (p) + xd->vendor_name = kstrdup(p->value.text, GFP_KERNEL); + + return 0; +} + +/* Called with @xd->lock held */ +static void tb_xdomain_restore_paths(struct tb_xdomain *xd) +{ + if (!xd->resume) + return; + + xd->resume = false; + if (xd->transmit_path) { + dev_dbg(&xd->dev, "re-establishing DMA path\n"); + tb_domain_approve_xdomain_paths(xd->tb, xd); + } +} + +static void tb_xdomain_get_properties(struct work_struct *work) +{ + struct tb_xdomain *xd = container_of(work, typeof(*xd), + get_properties_work.work); + struct tb_property_dir *dir; + struct tb *tb = xd->tb; + bool update = false; + u32 *block = NULL; + u32 gen = 0; + int ret; + + ret = tb_xdp_properties_request(tb->ctl, xd->route, xd->local_uuid, + xd->remote_uuid, xd->properties_retries, + &block, &gen); + if (ret < 0) { + if (xd->properties_retries-- > 0) { + queue_delayed_work(xd->tb->wq, &xd->get_properties_work, + msecs_to_jiffies(1000)); + } else { + /* Give up now */ + dev_err(&xd->dev, + "failed read XDomain properties from %pUb\n", + xd->remote_uuid); + } + return; + } + + xd->properties_retries = XDOMAIN_PROPERTIES_RETRIES; + + mutex_lock(&xd->lock); + + /* Only accept newer generation properties */ + if (xd->properties && gen <= xd->property_block_gen) { + /* + * On resume it is likely that the properties block is + * not changed (unless the other end added or removed + * services). However, we need to make sure the existing + * DMA paths are restored properly. + */ + tb_xdomain_restore_paths(xd); + goto err_free_block; + } + + dir = tb_property_parse_dir(block, ret); + if (!dir) { + dev_err(&xd->dev, "failed to parse XDomain properties\n"); + goto err_free_block; + } + + ret = populate_properties(xd, dir); + if (ret) { + dev_err(&xd->dev, "missing XDomain properties in response\n"); + goto err_free_dir; + } + + /* Release the existing one */ + if (xd->properties) { + tb_property_free_dir(xd->properties); + update = true; + } + + xd->properties = dir; + xd->property_block_gen = gen; + + tb_xdomain_restore_paths(xd); + + mutex_unlock(&xd->lock); + + kfree(block); + + /* + * Now the device should be ready enough so we can add it to the + * bus and let userspace know about it. If the device is already + * registered, we notify the userspace that it has changed. + */ + if (!update) { + if (device_add(&xd->dev)) { + dev_err(&xd->dev, "failed to add XDomain device\n"); + return; + } + } else { + kobject_uevent(&xd->dev.kobj, KOBJ_CHANGE); + } + + enumerate_services(xd); + return; + +err_free_dir: + tb_property_free_dir(dir); +err_free_block: + kfree(block); + mutex_unlock(&xd->lock); +} + +static void tb_xdomain_properties_changed(struct work_struct *work) +{ + struct tb_xdomain *xd = container_of(work, typeof(*xd), + properties_changed_work.work); + int ret; + + ret = tb_xdp_properties_changed_request(xd->tb->ctl, xd->route, + xd->properties_changed_retries, xd->local_uuid); + if (ret) { + if (xd->properties_changed_retries-- > 0) + queue_delayed_work(xd->tb->wq, + &xd->properties_changed_work, + msecs_to_jiffies(1000)); + return; + } + + xd->properties_changed_retries = XDOMAIN_PROPERTIES_CHANGED_RETRIES; +} + +static ssize_t device_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev); + + return sprintf(buf, "%#x\n", xd->device); +} +static DEVICE_ATTR_RO(device); + +static ssize_t +device_name_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev); + int ret; + + if (mutex_lock_interruptible(&xd->lock)) + return -ERESTARTSYS; + ret = sprintf(buf, "%s\n", xd->device_name ? xd->device_name : ""); + mutex_unlock(&xd->lock); + + return ret; +} +static DEVICE_ATTR_RO(device_name); + +static ssize_t vendor_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev); + + return sprintf(buf, "%#x\n", xd->vendor); +} +static DEVICE_ATTR_RO(vendor); + +static ssize_t +vendor_name_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev); + int ret; + + if (mutex_lock_interruptible(&xd->lock)) + return -ERESTARTSYS; + ret = sprintf(buf, "%s\n", xd->vendor_name ? xd->vendor_name : ""); + mutex_unlock(&xd->lock); + + return ret; +} +static DEVICE_ATTR_RO(vendor_name); + +static ssize_t unique_id_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev); + + return sprintf(buf, "%pUb\n", xd->remote_uuid); +} +static DEVICE_ATTR_RO(unique_id); + +static struct attribute *xdomain_attrs[] = { + &dev_attr_device.attr, + &dev_attr_device_name.attr, + &dev_attr_unique_id.attr, + &dev_attr_vendor.attr, + &dev_attr_vendor_name.attr, + NULL, +}; + +static struct attribute_group xdomain_attr_group = { + .attrs = xdomain_attrs, +}; + +static const struct attribute_group *xdomain_attr_groups[] = { + &xdomain_attr_group, + NULL, +}; + +static void tb_xdomain_release(struct device *dev) +{ + struct tb_xdomain *xd = container_of(dev, struct tb_xdomain, dev); + + put_device(xd->dev.parent); + + tb_property_free_dir(xd->properties); + ida_destroy(&xd->service_ids); + + kfree(xd->local_uuid); + kfree(xd->remote_uuid); + kfree(xd->device_name); + kfree(xd->vendor_name); + kfree(xd); +} + +static void start_handshake(struct tb_xdomain *xd) +{ + xd->properties_retries = XDOMAIN_PROPERTIES_RETRIES; + xd->properties_changed_retries = XDOMAIN_PROPERTIES_CHANGED_RETRIES; + + /* Start exchanging properties with the other host */ + queue_delayed_work(xd->tb->wq, &xd->properties_changed_work, + msecs_to_jiffies(100)); + queue_delayed_work(xd->tb->wq, &xd->get_properties_work, + msecs_to_jiffies(1000)); +} + +static void stop_handshake(struct tb_xdomain *xd) +{ + xd->properties_retries = 0; + xd->properties_changed_retries = 0; + + cancel_delayed_work_sync(&xd->get_properties_work); + cancel_delayed_work_sync(&xd->properties_changed_work); +} + +static int __maybe_unused tb_xdomain_suspend(struct device *dev) +{ + stop_handshake(tb_to_xdomain(dev)); + return 0; +} + +static int __maybe_unused tb_xdomain_resume(struct device *dev) +{ + struct tb_xdomain *xd = tb_to_xdomain(dev); + + /* + * Ask tb_xdomain_get_properties() restore any existing DMA + * paths after properties are re-read. + */ + xd->resume = true; + start_handshake(xd); + + return 0; +} + +static const struct dev_pm_ops tb_xdomain_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(tb_xdomain_suspend, tb_xdomain_resume) +}; + +struct device_type tb_xdomain_type = { + .name = "thunderbolt_xdomain", + .release = tb_xdomain_release, + .pm = &tb_xdomain_pm_ops, +}; +EXPORT_SYMBOL_GPL(tb_xdomain_type); + +/** + * tb_xdomain_alloc() - Allocate new XDomain object + * @tb: Domain where the XDomain belongs + * @parent: Parent device (the switch through the connection to the + * other domain is reached). + * @route: Route string used to reach the other domain + * @local_uuid: Our local domain UUID + * @remote_uuid: UUID of the other domain + * + * Allocates new XDomain structure and returns pointer to that. The + * object must be released by calling tb_xdomain_put(). + */ +struct tb_xdomain *tb_xdomain_alloc(struct tb *tb, struct device *parent, + u64 route, const uuid_t *local_uuid, + const uuid_t *remote_uuid) +{ + struct tb_xdomain *xd; + + xd = kzalloc(sizeof(*xd), GFP_KERNEL); + if (!xd) + return NULL; + + xd->tb = tb; + xd->route = route; + ida_init(&xd->service_ids); + mutex_init(&xd->lock); + INIT_DELAYED_WORK(&xd->get_properties_work, tb_xdomain_get_properties); + INIT_DELAYED_WORK(&xd->properties_changed_work, + tb_xdomain_properties_changed); + + xd->local_uuid = kmemdup(local_uuid, sizeof(uuid_t), GFP_KERNEL); + if (!xd->local_uuid) + goto err_free; + + xd->remote_uuid = kmemdup(remote_uuid, sizeof(uuid_t), GFP_KERNEL); + if (!xd->remote_uuid) + goto err_free_local_uuid; + + device_initialize(&xd->dev); + xd->dev.parent = get_device(parent); + xd->dev.bus = &tb_bus_type; + xd->dev.type = &tb_xdomain_type; + xd->dev.groups = xdomain_attr_groups; + dev_set_name(&xd->dev, "%u-%llx", tb->index, route); + + return xd; + +err_free_local_uuid: + kfree(xd->local_uuid); +err_free: + kfree(xd); + + return NULL; +} + +/** + * tb_xdomain_add() - Add XDomain to the bus + * @xd: XDomain to add + * + * This function starts XDomain discovery protocol handshake and + * eventually adds the XDomain to the bus. After calling this function + * the caller needs to call tb_xdomain_remove() in order to remove and + * release the object regardless whether the handshake succeeded or not. + */ +void tb_xdomain_add(struct tb_xdomain *xd) +{ + /* Start exchanging properties with the other host */ + start_handshake(xd); +} + +static int unregister_service(struct device *dev, void *data) +{ + device_unregister(dev); + return 0; +} + +/** + * tb_xdomain_remove() - Remove XDomain from the bus + * @xd: XDomain to remove + * + * This will stop all ongoing configuration work and remove the XDomain + * along with any services from the bus. When the last reference to @xd + * is released the object will be released as well. + */ +void tb_xdomain_remove(struct tb_xdomain *xd) +{ + stop_handshake(xd); + + device_for_each_child_reverse(&xd->dev, xd, unregister_service); + + if (!device_is_registered(&xd->dev)) + put_device(&xd->dev); + else + device_unregister(&xd->dev); +} + +/** + * tb_xdomain_enable_paths() - Enable DMA paths for XDomain connection + * @xd: XDomain connection + * @transmit_path: HopID of the transmit path the other end is using to + * send packets + * @transmit_ring: DMA ring used to receive packets from the other end + * @receive_path: HopID of the receive path the other end is using to + * receive packets + * @receive_ring: DMA ring used to send packets to the other end + * + * The function enables DMA paths accordingly so that after successful + * return the caller can send and receive packets using high-speed DMA + * path. + * + * Return: %0 in case of success and negative errno in case of error + */ +int tb_xdomain_enable_paths(struct tb_xdomain *xd, u16 transmit_path, + u16 transmit_ring, u16 receive_path, + u16 receive_ring) +{ + int ret; + + mutex_lock(&xd->lock); + + if (xd->transmit_path) { + ret = xd->transmit_path == transmit_path ? 0 : -EBUSY; + goto exit_unlock; + } + + xd->transmit_path = transmit_path; + xd->transmit_ring = transmit_ring; + xd->receive_path = receive_path; + xd->receive_ring = receive_ring; + + ret = tb_domain_approve_xdomain_paths(xd->tb, xd); + +exit_unlock: + mutex_unlock(&xd->lock); + + return ret; +} +EXPORT_SYMBOL_GPL(tb_xdomain_enable_paths); + +/** + * tb_xdomain_disable_paths() - Disable DMA paths for XDomain connection + * @xd: XDomain connection + * + * This does the opposite of tb_xdomain_enable_paths(). After call to + * this the caller is not expected to use the rings anymore. + * + * Return: %0 in case of success and negative errno in case of error + */ +int tb_xdomain_disable_paths(struct tb_xdomain *xd) +{ + int ret = 0; + + mutex_lock(&xd->lock); + if (xd->transmit_path) { + xd->transmit_path = 0; + xd->transmit_ring = 0; + xd->receive_path = 0; + xd->receive_ring = 0; + + ret = tb_domain_disconnect_xdomain_paths(xd->tb, xd); + } + mutex_unlock(&xd->lock); + + return ret; +} +EXPORT_SYMBOL_GPL(tb_xdomain_disable_paths); + +struct tb_xdomain_lookup { + const uuid_t *uuid; + u8 link; + u8 depth; +}; + +static struct tb_xdomain *switch_find_xdomain(struct tb_switch *sw, + const struct tb_xdomain_lookup *lookup) +{ + int i; + + for (i = 1; i <= sw->config.max_port_number; i++) { + struct tb_port *port = &sw->ports[i]; + struct tb_xdomain *xd; + + if (tb_is_upstream_port(port)) + continue; + + if (port->xdomain) { + xd = port->xdomain; + + if (lookup->uuid) { + if (uuid_equal(xd->remote_uuid, lookup->uuid)) + return xd; + } else if (lookup->link == xd->link && + lookup->depth == xd->depth) { + return xd; + } + } else if (port->remote) { + xd = switch_find_xdomain(port->remote->sw, lookup); + if (xd) + return xd; + } + } + + return NULL; +} + +/** + * tb_xdomain_find_by_uuid() - Find an XDomain by UUID + * @tb: Domain where the XDomain belongs to + * @uuid: UUID to look for + * + * Finds XDomain by walking through the Thunderbolt topology below @tb. + * The returned XDomain will have its reference count increased so the + * caller needs to call tb_xdomain_put() when it is done with the + * object. + * + * This will find all XDomains including the ones that are not yet added + * to the bus (handshake is still in progress). + * + * The caller needs to hold @tb->lock. + */ +struct tb_xdomain *tb_xdomain_find_by_uuid(struct tb *tb, const uuid_t *uuid) +{ + struct tb_xdomain_lookup lookup; + struct tb_xdomain *xd; + + memset(&lookup, 0, sizeof(lookup)); + lookup.uuid = uuid; + + xd = switch_find_xdomain(tb->root_switch, &lookup); + if (xd) { + get_device(&xd->dev); + return xd; + } + + return NULL; +} +EXPORT_SYMBOL_GPL(tb_xdomain_find_by_uuid); + +/** + * tb_xdomain_find_by_link_depth() - Find an XDomain by link and depth + * @tb: Domain where the XDomain belongs to + * @link: Root switch link number + * @depth: Depth in the link + * + * Finds XDomain by walking through the Thunderbolt topology below @tb. + * The returned XDomain will have its reference count increased so the + * caller needs to call tb_xdomain_put() when it is done with the + * object. + * + * This will find all XDomains including the ones that are not yet added + * to the bus (handshake is still in progress). + * + * The caller needs to hold @tb->lock. + */ +struct tb_xdomain *tb_xdomain_find_by_link_depth(struct tb *tb, u8 link, + u8 depth) +{ + struct tb_xdomain_lookup lookup; + struct tb_xdomain *xd; + + memset(&lookup, 0, sizeof(lookup)); + lookup.link = link; + lookup.depth = depth; + + xd = switch_find_xdomain(tb->root_switch, &lookup); + if (xd) { + get_device(&xd->dev); + return xd; + } + + return NULL; +} + +bool tb_xdomain_handle_request(struct tb *tb, enum tb_cfg_pkg_type type, + const void *buf, size_t size) +{ + const struct tb_protocol_handler *handler, *tmp; + const struct tb_xdp_header *hdr = buf; + unsigned int length; + int ret = 0; + + /* We expect the packet is at least size of the header */ + length = hdr->xd_hdr.length_sn & TB_XDOMAIN_LENGTH_MASK; + if (length != size / 4 - sizeof(hdr->xd_hdr) / 4) + return true; + if (length < sizeof(*hdr) / 4 - sizeof(hdr->xd_hdr) / 4) + return true; + + /* + * Handle XDomain discovery protocol packets directly here. For + * other protocols (based on their UUID) we call registered + * handlers in turn. + */ + if (uuid_equal(&hdr->uuid, &tb_xdp_uuid)) { + if (type == TB_CFG_PKG_XDOMAIN_REQ) { + tb_xdp_schedule_request(tb, hdr, size); + return true; + } + return false; + } + + mutex_lock(&xdomain_lock); + list_for_each_entry_safe(handler, tmp, &protocol_handlers, list) { + if (!uuid_equal(&hdr->uuid, handler->uuid)) + continue; + + mutex_unlock(&xdomain_lock); + ret = handler->callback(buf, size, handler->data); + mutex_lock(&xdomain_lock); + + if (ret) + break; + } + mutex_unlock(&xdomain_lock); + + return ret > 0; +} + +static int rebuild_property_block(void) +{ + u32 *block, len; + int ret; + + ret = tb_property_format_dir(xdomain_property_dir, NULL, 0); + if (ret < 0) + return ret; + + len = ret; + + block = kcalloc(len, sizeof(u32), GFP_KERNEL); + if (!block) + return -ENOMEM; + + ret = tb_property_format_dir(xdomain_property_dir, block, len); + if (ret) { + kfree(block); + return ret; + } + + kfree(xdomain_property_block); + xdomain_property_block = block; + xdomain_property_block_len = len; + xdomain_property_block_gen++; + + return 0; +} + +static int update_xdomain(struct device *dev, void *data) +{ + struct tb_xdomain *xd; + + xd = tb_to_xdomain(dev); + if (xd) { + queue_delayed_work(xd->tb->wq, &xd->properties_changed_work, + msecs_to_jiffies(50)); + } + + return 0; +} + +static void update_all_xdomains(void) +{ + bus_for_each_dev(&tb_bus_type, NULL, NULL, update_xdomain); +} + +static bool remove_directory(const char *key, const struct tb_property_dir *dir) +{ + struct tb_property *p; + + p = tb_property_find(xdomain_property_dir, key, + TB_PROPERTY_TYPE_DIRECTORY); + if (p && p->value.dir == dir) { + tb_property_remove(p); + return true; + } + return false; +} + +/** + * tb_register_property_dir() - Register property directory to the host + * @key: Key (name) of the directory to add + * @dir: Directory to add + * + * Service drivers can use this function to add new property directory + * to the host available properties. The other connected hosts are + * notified so they can re-read properties of this host if they are + * interested. + * + * Return: %0 on success and negative errno on failure + */ +int tb_register_property_dir(const char *key, struct tb_property_dir *dir) +{ + int ret; + + if (!key || strlen(key) > 8) + return -EINVAL; + + mutex_lock(&xdomain_lock); + if (tb_property_find(xdomain_property_dir, key, + TB_PROPERTY_TYPE_DIRECTORY)) { + ret = -EEXIST; + goto err_unlock; + } + + ret = tb_property_add_dir(xdomain_property_dir, key, dir); + if (ret) + goto err_unlock; + + ret = rebuild_property_block(); + if (ret) { + remove_directory(key, dir); + goto err_unlock; + } + + mutex_unlock(&xdomain_lock); + update_all_xdomains(); + return 0; + +err_unlock: + mutex_unlock(&xdomain_lock); + return ret; +} +EXPORT_SYMBOL_GPL(tb_register_property_dir); + +/** + * tb_unregister_property_dir() - Removes property directory from host + * @key: Key (name) of the directory + * @dir: Directory to remove + * + * This will remove the existing directory from this host and notify the + * connected hosts about the change. + */ +void tb_unregister_property_dir(const char *key, struct tb_property_dir *dir) +{ + int ret = 0; + + mutex_lock(&xdomain_lock); + if (remove_directory(key, dir)) + ret = rebuild_property_block(); + mutex_unlock(&xdomain_lock); + + if (!ret) + update_all_xdomains(); +} +EXPORT_SYMBOL_GPL(tb_unregister_property_dir); + +int tb_xdomain_init(void) +{ + int ret; + + xdomain_property_dir = tb_property_create_dir(NULL); + if (!xdomain_property_dir) + return -ENOMEM; + + /* + * Initialize standard set of properties without any service + * directories. Those will be added by service drivers + * themselves when they are loaded. + */ + tb_property_add_immediate(xdomain_property_dir, "vendorid", + PCI_VENDOR_ID_INTEL); + tb_property_add_text(xdomain_property_dir, "vendorid", "Intel Corp."); + tb_property_add_immediate(xdomain_property_dir, "deviceid", 0x1); + tb_property_add_text(xdomain_property_dir, "deviceid", + utsname()->nodename); + tb_property_add_immediate(xdomain_property_dir, "devicerv", 0x80000100); + + ret = rebuild_property_block(); + if (ret) { + tb_property_free_dir(xdomain_property_dir); + xdomain_property_dir = NULL; + } + + return ret; +} + +void tb_xdomain_exit(void) +{ + kfree(xdomain_property_block); + tb_property_free_dir(xdomain_property_dir); +} diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index 694cebb50f72..7625c3b81f84 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -683,5 +683,31 @@ struct fsl_mc_device_id { const char obj_type[16]; }; +/** + * struct tb_service_id - Thunderbolt service identifiers + * @match_flags: Flags used to match the structure + * @protocol_key: Protocol key the service supports + * @protocol_id: Protocol id the service supports + * @protocol_version: Version of the protocol + * @protocol_revision: Revision of the protocol software + * @driver_data: Driver specific data + * + * Thunderbolt XDomain services are exposed as devices where each device + * carries the protocol information the service supports. Thunderbolt + * XDomain service drivers match against that information. + */ +struct tb_service_id { + __u32 match_flags; + char protocol_key[8 + 1]; + __u32 protocol_id; + __u32 protocol_version; + __u32 protocol_revision; + kernel_ulong_t driver_data; +}; + +#define TBSVC_MATCH_PROTOCOL_KEY 0x0001 +#define TBSVC_MATCH_PROTOCOL_ID 0x0002 +#define TBSVC_MATCH_PROTOCOL_VERSION 0x0004 +#define TBSVC_MATCH_PROTOCOL_REVISION 0x0008 #endif /* LINUX_MOD_DEVICETABLE_H */ diff --git a/include/linux/thunderbolt.h b/include/linux/thunderbolt.h index 43b8d1e09341..18c0e3d5e85c 100644 --- a/include/linux/thunderbolt.h +++ b/include/linux/thunderbolt.h @@ -17,6 +17,7 @@ #include #include #include +#include #include enum tb_cfg_pkg_type { @@ -77,6 +78,8 @@ struct tb { }; extern struct bus_type tb_bus_type; +extern struct device_type tb_service_type; +extern struct device_type tb_xdomain_type; #define TB_LINKS_PER_PHY_PORT 2 @@ -155,4 +158,243 @@ struct tb_property *tb_property_get_next(struct tb_property_dir *dir, property; \ property = tb_property_get_next(dir, property)) +int tb_register_property_dir(const char *key, struct tb_property_dir *dir); +void tb_unregister_property_dir(const char *key, struct tb_property_dir *dir); + +/** + * struct tb_xdomain - Cross-domain (XDomain) connection + * @dev: XDomain device + * @tb: Pointer to the domain + * @remote_uuid: UUID of the remote domain (host) + * @local_uuid: Cached local UUID + * @route: Route string the other domain can be reached + * @vendor: Vendor ID of the remote domain + * @device: Device ID of the demote domain + * @lock: Lock to serialize access to the following fields of this structure + * @vendor_name: Name of the vendor (or %NULL if not known) + * @device_name: Name of the device (or %NULL if not known) + * @is_unplugged: The XDomain is unplugged + * @resume: The XDomain is being resumed + * @transmit_path: HopID which the remote end expects us to transmit + * @transmit_ring: Local ring (hop) where outgoing packets are pushed + * @receive_path: HopID which we expect the remote end to transmit + * @receive_ring: Local ring (hop) where incoming packets arrive + * @service_ids: Used to generate IDs for the services + * @properties: Properties exported by the remote domain + * @property_block_gen: Generation of @properties + * @properties_lock: Lock protecting @properties. + * @get_properties_work: Work used to get remote domain properties + * @properties_retries: Number of times left to read properties + * @properties_changed_work: Work used to notify the remote domain that + * our properties have changed + * @properties_changed_retries: Number of times left to send properties + * changed notification + * @link: Root switch link the remote domain is connected (ICM only) + * @depth: Depth in the chain the remote domain is connected (ICM only) + * + * This structure represents connection across two domains (hosts). + * Each XDomain contains zero or more services which are exposed as + * &struct tb_service objects. + * + * Service drivers may access this structure if they need to enumerate + * non-standard properties but they need hold @lock when doing so + * because properties can be changed asynchronously in response to + * changes in the remote domain. + */ +struct tb_xdomain { + struct device dev; + struct tb *tb; + uuid_t *remote_uuid; + const uuid_t *local_uuid; + u64 route; + u16 vendor; + u16 device; + struct mutex lock; + const char *vendor_name; + const char *device_name; + bool is_unplugged; + bool resume; + u16 transmit_path; + u16 transmit_ring; + u16 receive_path; + u16 receive_ring; + struct ida service_ids; + struct tb_property_dir *properties; + u32 property_block_gen; + struct delayed_work get_properties_work; + int properties_retries; + struct delayed_work properties_changed_work; + int properties_changed_retries; + u8 link; + u8 depth; +}; + +int tb_xdomain_enable_paths(struct tb_xdomain *xd, u16 transmit_path, + u16 transmit_ring, u16 receive_path, + u16 receive_ring); +int tb_xdomain_disable_paths(struct tb_xdomain *xd); +struct tb_xdomain *tb_xdomain_find_by_uuid(struct tb *tb, const uuid_t *uuid); + +static inline struct tb_xdomain * +tb_xdomain_find_by_uuid_locked(struct tb *tb, const uuid_t *uuid) +{ + struct tb_xdomain *xd; + + mutex_lock(&tb->lock); + xd = tb_xdomain_find_by_uuid(tb, uuid); + mutex_unlock(&tb->lock); + + return xd; +} + +static inline struct tb_xdomain *tb_xdomain_get(struct tb_xdomain *xd) +{ + if (xd) + get_device(&xd->dev); + return xd; +} + +static inline void tb_xdomain_put(struct tb_xdomain *xd) +{ + if (xd) + put_device(&xd->dev); +} + +static inline bool tb_is_xdomain(const struct device *dev) +{ + return dev->type == &tb_xdomain_type; +} + +static inline struct tb_xdomain *tb_to_xdomain(struct device *dev) +{ + if (tb_is_xdomain(dev)) + return container_of(dev, struct tb_xdomain, dev); + return NULL; +} + +int tb_xdomain_response(struct tb_xdomain *xd, const void *response, + size_t size, enum tb_cfg_pkg_type type); +int tb_xdomain_request(struct tb_xdomain *xd, const void *request, + size_t request_size, enum tb_cfg_pkg_type request_type, + void *response, size_t response_size, + enum tb_cfg_pkg_type response_type, + unsigned int timeout_msec); + +/** + * tb_protocol_handler - Protocol specific handler + * @uuid: XDomain messages with this UUID are dispatched to this handler + * @callback: Callback called with the XDomain message. Returning %1 + * here tells the XDomain core that the message was handled + * by this handler and should not be forwared to other + * handlers. + * @data: Data passed with the callback + * @list: Handlers are linked using this + * + * Thunderbolt services can hook into incoming XDomain requests by + * registering protocol handler. Only limitation is that the XDomain + * discovery protocol UUID cannot be registered since it is handled by + * the core XDomain code. + * + * The @callback must check that the message is really directed to the + * service the driver implements. + */ +struct tb_protocol_handler { + const uuid_t *uuid; + int (*callback)(const void *buf, size_t size, void *data); + void *data; + struct list_head list; +}; + +int tb_register_protocol_handler(struct tb_protocol_handler *handler); +void tb_unregister_protocol_handler(struct tb_protocol_handler *handler); + +/** + * struct tb_service - Thunderbolt service + * @dev: XDomain device + * @id: ID of the service (shown in sysfs) + * @key: Protocol key from the properties directory + * @prtcid: Protocol ID from the properties directory + * @prtcvers: Protocol version from the properties directory + * @prtcrevs: Protocol software revision from the properties directory + * @prtcstns: Protocol settings mask from the properties directory + * + * Each domain exposes set of services it supports as collection of + * properties. For each service there will be one corresponding + * &struct tb_service. Service drivers are bound to these. + */ +struct tb_service { + struct device dev; + int id; + const char *key; + u32 prtcid; + u32 prtcvers; + u32 prtcrevs; + u32 prtcstns; +}; + +static inline struct tb_service *tb_service_get(struct tb_service *svc) +{ + if (svc) + get_device(&svc->dev); + return svc; +} + +static inline void tb_service_put(struct tb_service *svc) +{ + if (svc) + put_device(&svc->dev); +} + +static inline bool tb_is_service(const struct device *dev) +{ + return dev->type == &tb_service_type; +} + +static inline struct tb_service *tb_to_service(struct device *dev) +{ + if (tb_is_service(dev)) + return container_of(dev, struct tb_service, dev); + return NULL; +} + +/** + * tb_service_driver - Thunderbolt service driver + * @driver: Driver structure + * @probe: Called when the driver is probed + * @remove: Called when the driver is removed (optional) + * @shutdown: Called at shutdown time to stop the service (optional) + * @id_table: Table of service identifiers the driver supports + */ +struct tb_service_driver { + struct device_driver driver; + int (*probe)(struct tb_service *svc, const struct tb_service_id *id); + void (*remove)(struct tb_service *svc); + void (*shutdown)(struct tb_service *svc); + const struct tb_service_id *id_table; +}; + +#define TB_SERVICE(key, id) \ + .match_flags = TBSVC_MATCH_PROTOCOL_KEY | \ + TBSVC_MATCH_PROTOCOL_ID, \ + .protocol_key = (key), \ + .protocol_id = (id) + +int tb_register_service_driver(struct tb_service_driver *drv); +void tb_unregister_service_driver(struct tb_service_driver *drv); + +static inline void *tb_service_get_drvdata(const struct tb_service *svc) +{ + return dev_get_drvdata(&svc->dev); +} + +static inline void tb_service_set_drvdata(struct tb_service *svc, void *data) +{ + dev_set_drvdata(&svc->dev, data); +} + +static inline struct tb_xdomain *tb_service_parent(struct tb_service *svc) +{ + return tb_to_xdomain(svc->dev.parent); +} + #endif /* THUNDERBOLT_H_ */ diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c index e4d90e50f6fe..57263f2f8f2f 100644 --- a/scripts/mod/devicetable-offsets.c +++ b/scripts/mod/devicetable-offsets.c @@ -206,5 +206,12 @@ int main(void) DEVID_FIELD(fsl_mc_device_id, vendor); DEVID_FIELD(fsl_mc_device_id, obj_type); + DEVID(tb_service_id); + DEVID_FIELD(tb_service_id, match_flags); + DEVID_FIELD(tb_service_id, protocol_key); + DEVID_FIELD(tb_service_id, protocol_id); + DEVID_FIELD(tb_service_id, protocol_version); + DEVID_FIELD(tb_service_id, protocol_revision); + return 0; } diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 29d6699d5a06..6ef6e63f96fd 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -1301,6 +1301,31 @@ static int do_fsl_mc_entry(const char *filename, void *symval, } ADD_TO_DEVTABLE("fslmc", fsl_mc_device_id, do_fsl_mc_entry); +/* Looks like: tbsvc:kSpNvNrN */ +static int do_tbsvc_entry(const char *filename, void *symval, char *alias) +{ + DEF_FIELD(symval, tb_service_id, match_flags); + DEF_FIELD_ADDR(symval, tb_service_id, protocol_key); + DEF_FIELD(symval, tb_service_id, protocol_id); + DEF_FIELD(symval, tb_service_id, protocol_version); + DEF_FIELD(symval, tb_service_id, protocol_revision); + + strcpy(alias, "tbsvc:"); + if (match_flags & TBSVC_MATCH_PROTOCOL_KEY) + sprintf(alias + strlen(alias), "k%s", *protocol_key); + else + strcat(alias + strlen(alias), "k*"); + ADD(alias, "p", match_flags & TBSVC_MATCH_PROTOCOL_ID, protocol_id); + ADD(alias, "v", match_flags & TBSVC_MATCH_PROTOCOL_VERSION, + protocol_version); + ADD(alias, "r", match_flags & TBSVC_MATCH_PROTOCOL_REVISION, + protocol_revision); + + add_wildcard(alias); + return 1; +} +ADD_TO_DEVTABLE("tbsvc", tb_service_id, do_tbsvc_entry); + /* Does namelen bytes of name exactly match the symbol? */ static bool sym_is(const char *name, unsigned namelen, const char *symbol) { -- cgit v1.2.3 From e69b6c02b4c3b8d03be7136f90dd9551ad5a5a5e Mon Sep 17 00:00:00 2001 From: Amir Levy Date: Mon, 2 Oct 2017 13:38:45 +0300 Subject: net: Add support for networking over Thunderbolt cable ThunderboltIP is a protocol created by Apple to tunnel IP/ethernet traffic over a Thunderbolt cable. The protocol consists of configuration phase where each side sends ThunderboltIP login packets (the protocol is determined by UUID in the XDomain packet header) over the configuration channel. Once both sides get positive acknowledgment to their login packet, they configure high-speed DMA path accordingly. This DMA path is then used to transmit and receive networking traffic. This patch creates a virtual ethernet interface the host software can use in the same way as any other networking interface. Once the interface is brought up successfully network packets get tunneled over the Thunderbolt cable to the remote host and back. The connection is terminated by sending a ThunderboltIP logout packet over the configuration channel. We do this when the network interface is brought down by user or the driver is unloaded. Signed-off-by: Amir Levy Signed-off-by: Michael Jamet Signed-off-by: Mika Westerberg Reviewed-by: Yehezkel Bernat Reviewed-by: Andy Shevchenko Signed-off-by: David S. Miller --- Documentation/admin-guide/thunderbolt.rst | 24 + drivers/net/Kconfig | 12 + drivers/net/Makefile | 3 + drivers/net/thunderbolt.c | 1362 +++++++++++++++++++++++++++++ 4 files changed, 1401 insertions(+) create mode 100644 drivers/net/thunderbolt.c (limited to 'Documentation') diff --git a/Documentation/admin-guide/thunderbolt.rst b/Documentation/admin-guide/thunderbolt.rst index 6a4cd1f159ca..5c62d11d77e8 100644 --- a/Documentation/admin-guide/thunderbolt.rst +++ b/Documentation/admin-guide/thunderbolt.rst @@ -197,3 +197,27 @@ information is missing. To recover from this mode, one needs to flash a valid NVM image to the host host controller in the same way it is done in the previous chapter. + +Networking over Thunderbolt cable +--------------------------------- +Thunderbolt technology allows software communication across two hosts +connected by a Thunderbolt cable. + +It is possible to tunnel any kind of traffic over Thunderbolt link but +currently we only support Apple ThunderboltIP protocol. + +If the other host is running Windows or macOS only thing you need to +do is to connect Thunderbolt cable between the two hosts, the +``thunderbolt-net`` is loaded automatically. If the other host is also +Linux you should load ``thunderbolt-net`` manually on one host (it does +not matter which one):: + + # modprobe thunderbolt-net + +This triggers module load on the other host automatically. If the driver +is built-in to the kernel image, there is no need to do anything. + +The driver will create one virtual ethernet interface per Thunderbolt +port which are named like ``thunderbolt0`` and so on. From this point +you can either use standard userspace tools like ``ifconfig`` to +configure the interface or let your GUI to handle it automatically. diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index aba0d652095b..0936da592e12 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -483,6 +483,18 @@ config FUJITSU_ES This driver provides support for Extended Socket network device on Extended Partitioning of FUJITSU PRIMEQUEST 2000 E2 series. +config THUNDERBOLT_NET + tristate "Networking over Thunderbolt cable" + depends on THUNDERBOLT && INET + help + Select this if you want to create network between two + computers over a Thunderbolt cable. The driver supports Apple + ThunderboltIP protocol and allows communication with any host + supporting the same protocol including Windows and macOS. + + To compile this driver a module, choose M here. The module will be + called thunderbolt-net. + source "drivers/net/hyperv/Kconfig" endif # NETDEVICES diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 8dff900085d6..7c8f4dd3a7c5 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -74,3 +74,6 @@ obj-$(CONFIG_HYPERV_NET) += hyperv/ obj-$(CONFIG_NTB_NETDEV) += ntb_netdev.o obj-$(CONFIG_FUJITSU_ES) += fjes/ + +thunderbolt-net-y += thunderbolt.o +obj-$(CONFIG_THUNDERBOLT_NET) += thunderbolt-net.o diff --git a/drivers/net/thunderbolt.c b/drivers/net/thunderbolt.c new file mode 100644 index 000000000000..1a7bc0bf4598 --- /dev/null +++ b/drivers/net/thunderbolt.c @@ -0,0 +1,1362 @@ +/* + * Networking over Thunderbolt cable using Apple ThunderboltIP protocol + * + * Copyright (C) 2017, Intel Corporation + * Authors: Amir Levy + * Michael Jamet + * Mika Westerberg + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +/* Protocol timeouts in ms */ +#define TBNET_LOGIN_DELAY 4500 +#define TBNET_LOGIN_TIMEOUT 500 +#define TBNET_LOGOUT_TIMEOUT 100 + +#define TBNET_RING_SIZE 256 +#define TBNET_LOCAL_PATH 0xf +#define TBNET_LOGIN_RETRIES 60 +#define TBNET_LOGOUT_RETRIES 5 +#define TBNET_MATCH_FRAGS_ID BIT(1) +#define TBNET_MAX_MTU SZ_64K +#define TBNET_FRAME_SIZE SZ_4K +#define TBNET_MAX_PAYLOAD_SIZE \ + (TBNET_FRAME_SIZE - sizeof(struct thunderbolt_ip_frame_header)) +/* Rx packets need to hold space for skb_shared_info */ +#define TBNET_RX_MAX_SIZE \ + (TBNET_FRAME_SIZE + SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) +#define TBNET_RX_PAGE_ORDER get_order(TBNET_RX_MAX_SIZE) +#define TBNET_RX_PAGE_SIZE (PAGE_SIZE << TBNET_RX_PAGE_ORDER) + +#define TBNET_L0_PORT_NUM(route) ((route) & GENMASK(5, 0)) + +/** + * struct thunderbolt_ip_frame_header - Header for each Thunderbolt frame + * @frame_size: size of the data with the frame + * @frame_index: running index on the frames + * @frame_id: ID of the frame to match frames to specific packet + * @frame_count: how many frames assembles a full packet + * + * Each data frame passed to the high-speed DMA ring has this header. If + * the XDomain network directory announces that %TBNET_MATCH_FRAGS_ID is + * supported then @frame_id is filled, otherwise it stays %0. + */ +struct thunderbolt_ip_frame_header { + u32 frame_size; + u16 frame_index; + u16 frame_id; + u32 frame_count; +}; + +enum thunderbolt_ip_frame_pdf { + TBIP_PDF_FRAME_START = 1, + TBIP_PDF_FRAME_END, +}; + +enum thunderbolt_ip_type { + TBIP_LOGIN, + TBIP_LOGIN_RESPONSE, + TBIP_LOGOUT, + TBIP_STATUS, +}; + +struct thunderbolt_ip_header { + u32 route_hi; + u32 route_lo; + u32 length_sn; + uuid_t uuid; + uuid_t initiator_uuid; + uuid_t target_uuid; + u32 type; + u32 command_id; +}; + +#define TBIP_HDR_LENGTH_MASK GENMASK(5, 0) +#define TBIP_HDR_SN_MASK GENMASK(28, 27) +#define TBIP_HDR_SN_SHIFT 27 + +struct thunderbolt_ip_login { + struct thunderbolt_ip_header hdr; + u32 proto_version; + u32 transmit_path; + u32 reserved[4]; +}; + +#define TBIP_LOGIN_PROTO_VERSION 1 + +struct thunderbolt_ip_login_response { + struct thunderbolt_ip_header hdr; + u32 status; + u32 receiver_mac[2]; + u32 receiver_mac_len; + u32 reserved[4]; +}; + +struct thunderbolt_ip_logout { + struct thunderbolt_ip_header hdr; +}; + +struct thunderbolt_ip_status { + struct thunderbolt_ip_header hdr; + u32 status; +}; + +struct tbnet_stats { + u64 tx_packets; + u64 rx_packets; + u64 tx_bytes; + u64 rx_bytes; + u64 rx_errors; + u64 tx_errors; + u64 rx_length_errors; + u64 rx_over_errors; + u64 rx_crc_errors; + u64 rx_missed_errors; +}; + +struct tbnet_frame { + struct net_device *dev; + struct page *page; + struct ring_frame frame; +}; + +struct tbnet_ring { + struct tbnet_frame frames[TBNET_RING_SIZE]; + unsigned int cons; + unsigned int prod; + struct tb_ring *ring; +}; + +/** + * struct tbnet - ThunderboltIP network driver private data + * @svc: XDomain service the driver is bound to + * @xd: XDomain the service blongs to + * @handler: ThunderboltIP configuration protocol handler + * @dev: Networking device + * @napi: NAPI structure for Rx polling + * @stats: Network statistics + * @skb: Network packet that is currently processed on Rx path + * @command_id: ID used for next configuration protocol packet + * @login_sent: ThunderboltIP login message successfully sent + * @login_received: ThunderboltIP login message received from the remote + * host + * @transmit_path: HopID the other end needs to use building the + * opposite side path. + * @connection_lock: Lock serializing access to @login_sent, + * @login_received and @transmit_path. + * @login_retries: Number of login retries currently done + * @login_work: Worker to send ThunderboltIP login packets + * @connected_work: Worker that finalizes the ThunderboltIP connection + * setup and enables DMA paths for high speed data + * transfers + * @rx_hdr: Copy of the currently processed Rx frame. Used when a + * network packet consists of multiple Thunderbolt frames. + * In host byte order. + * @rx_ring: Software ring holding Rx frames + * @frame_id: Frame ID use for next Tx packet + * (if %TBNET_MATCH_FRAGS_ID is supported in both ends) + * @tx_ring: Software ring holding Tx frames + */ +struct tbnet { + const struct tb_service *svc; + struct tb_xdomain *xd; + struct tb_protocol_handler handler; + struct net_device *dev; + struct napi_struct napi; + struct tbnet_stats stats; + struct sk_buff *skb; + atomic_t command_id; + bool login_sent; + bool login_received; + u32 transmit_path; + struct mutex connection_lock; + int login_retries; + struct delayed_work login_work; + struct work_struct connected_work; + struct thunderbolt_ip_frame_header rx_hdr; + struct tbnet_ring rx_ring; + atomic_t frame_id; + struct tbnet_ring tx_ring; +}; + +/* Network property directory UUID: c66189ca-1cce-4195-bdb8-49592e5f5a4f */ +static const uuid_t tbnet_dir_uuid = + UUID_INIT(0xc66189ca, 0x1cce, 0x4195, + 0xbd, 0xb8, 0x49, 0x59, 0x2e, 0x5f, 0x5a, 0x4f); + +/* ThunderboltIP protocol UUID: 798f589e-3616-8a47-97c6-5664a920c8dd */ +static const uuid_t tbnet_svc_uuid = + UUID_INIT(0x798f589e, 0x3616, 0x8a47, + 0x97, 0xc6, 0x56, 0x64, 0xa9, 0x20, 0xc8, 0xdd); + +static struct tb_property_dir *tbnet_dir; + +static void tbnet_fill_header(struct thunderbolt_ip_header *hdr, u64 route, + u8 sequence, const uuid_t *initiator_uuid, const uuid_t *target_uuid, + enum thunderbolt_ip_type type, size_t size, u32 command_id) +{ + u32 length_sn; + + /* Length does not include route_hi/lo and length_sn fields */ + length_sn = (size - 3 * 4) / 4; + length_sn |= (sequence << TBIP_HDR_SN_SHIFT) & TBIP_HDR_SN_MASK; + + hdr->route_hi = upper_32_bits(route); + hdr->route_lo = lower_32_bits(route); + hdr->length_sn = length_sn; + uuid_copy(&hdr->uuid, &tbnet_svc_uuid); + uuid_copy(&hdr->initiator_uuid, initiator_uuid); + uuid_copy(&hdr->target_uuid, target_uuid); + hdr->type = type; + hdr->command_id = command_id; +} + +static int tbnet_login_response(struct tbnet *net, u64 route, u8 sequence, + u32 command_id) +{ + struct thunderbolt_ip_login_response reply; + struct tb_xdomain *xd = net->xd; + + memset(&reply, 0, sizeof(reply)); + tbnet_fill_header(&reply.hdr, route, sequence, xd->local_uuid, + xd->remote_uuid, TBIP_LOGIN_RESPONSE, sizeof(reply), + command_id); + memcpy(reply.receiver_mac, net->dev->dev_addr, ETH_ALEN); + reply.receiver_mac_len = ETH_ALEN; + + return tb_xdomain_response(xd, &reply, sizeof(reply), + TB_CFG_PKG_XDOMAIN_RESP); +} + +static int tbnet_login_request(struct tbnet *net, u8 sequence) +{ + struct thunderbolt_ip_login_response reply; + struct thunderbolt_ip_login request; + struct tb_xdomain *xd = net->xd; + + memset(&request, 0, sizeof(request)); + tbnet_fill_header(&request.hdr, xd->route, sequence, xd->local_uuid, + xd->remote_uuid, TBIP_LOGIN, sizeof(request), + atomic_inc_return(&net->command_id)); + + request.proto_version = TBIP_LOGIN_PROTO_VERSION; + request.transmit_path = TBNET_LOCAL_PATH; + + return tb_xdomain_request(xd, &request, sizeof(request), + TB_CFG_PKG_XDOMAIN_RESP, &reply, + sizeof(reply), TB_CFG_PKG_XDOMAIN_RESP, + TBNET_LOGIN_TIMEOUT); +} + +static int tbnet_logout_response(struct tbnet *net, u64 route, u8 sequence, + u32 command_id) +{ + struct thunderbolt_ip_status reply; + struct tb_xdomain *xd = net->xd; + + memset(&reply, 0, sizeof(reply)); + tbnet_fill_header(&reply.hdr, route, sequence, xd->local_uuid, + xd->remote_uuid, TBIP_STATUS, sizeof(reply), + atomic_inc_return(&net->command_id)); + return tb_xdomain_response(xd, &reply, sizeof(reply), + TB_CFG_PKG_XDOMAIN_RESP); +} + +static int tbnet_logout_request(struct tbnet *net) +{ + struct thunderbolt_ip_logout request; + struct thunderbolt_ip_status reply; + struct tb_xdomain *xd = net->xd; + + memset(&request, 0, sizeof(request)); + tbnet_fill_header(&request.hdr, xd->route, 0, xd->local_uuid, + xd->remote_uuid, TBIP_LOGOUT, sizeof(request), + atomic_inc_return(&net->command_id)); + + return tb_xdomain_request(xd, &request, sizeof(request), + TB_CFG_PKG_XDOMAIN_RESP, &reply, + sizeof(reply), TB_CFG_PKG_XDOMAIN_RESP, + TBNET_LOGOUT_TIMEOUT); +} + +static void start_login(struct tbnet *net) +{ + mutex_lock(&net->connection_lock); + net->login_sent = false; + net->login_received = false; + mutex_unlock(&net->connection_lock); + + queue_delayed_work(system_long_wq, &net->login_work, + msecs_to_jiffies(1000)); +} + +static void stop_login(struct tbnet *net) +{ + cancel_delayed_work_sync(&net->login_work); + cancel_work_sync(&net->connected_work); +} + +static inline unsigned int tbnet_frame_size(const struct tbnet_frame *tf) +{ + return tf->frame.size ? : TBNET_FRAME_SIZE; +} + +static void tbnet_free_buffers(struct tbnet_ring *ring) +{ + unsigned int i; + + for (i = 0; i < TBNET_RING_SIZE; i++) { + struct device *dma_dev = tb_ring_dma_device(ring->ring); + struct tbnet_frame *tf = &ring->frames[i]; + enum dma_data_direction dir; + unsigned int order; + size_t size; + + if (!tf->page) + continue; + + if (ring->ring->is_tx) { + dir = DMA_TO_DEVICE; + order = 0; + size = tbnet_frame_size(tf); + } else { + dir = DMA_FROM_DEVICE; + order = TBNET_RX_PAGE_ORDER; + size = TBNET_RX_PAGE_SIZE; + } + + if (tf->frame.buffer_phy) + dma_unmap_page(dma_dev, tf->frame.buffer_phy, size, + dir); + + __free_pages(tf->page, order); + tf->page = NULL; + } + + ring->cons = 0; + ring->prod = 0; +} + +static void tbnet_tear_down(struct tbnet *net, bool send_logout) +{ + netif_carrier_off(net->dev); + netif_stop_queue(net->dev); + + stop_login(net); + + mutex_lock(&net->connection_lock); + + if (net->login_sent && net->login_received) { + int retries = TBNET_LOGOUT_RETRIES; + + while (send_logout && retries-- > 0) { + int ret = tbnet_logout_request(net); + if (ret != -ETIMEDOUT) + break; + } + + tb_ring_stop(net->rx_ring.ring); + tb_ring_stop(net->tx_ring.ring); + tbnet_free_buffers(&net->rx_ring); + tbnet_free_buffers(&net->tx_ring); + + if (tb_xdomain_disable_paths(net->xd)) + netdev_warn(net->dev, "failed to disable DMA paths\n"); + } + + net->login_retries = 0; + net->login_sent = false; + net->login_received = false; + + mutex_unlock(&net->connection_lock); +} + +static int tbnet_handle_packet(const void *buf, size_t size, void *data) +{ + const struct thunderbolt_ip_login *pkg = buf; + struct tbnet *net = data; + u32 command_id; + int ret = 0; + u8 sequence; + u64 route; + + /* Make sure the packet is for us */ + if (size < sizeof(struct thunderbolt_ip_header)) + return 0; + if (!uuid_equal(&pkg->hdr.initiator_uuid, net->xd->remote_uuid)) + return 0; + if (!uuid_equal(&pkg->hdr.target_uuid, net->xd->local_uuid)) + return 0; + + route = ((u64)pkg->hdr.route_hi << 32) | pkg->hdr.route_lo; + route &= ~BIT_ULL(63); + if (route != net->xd->route) + return 0; + + sequence = pkg->hdr.length_sn & TBIP_HDR_SN_MASK; + sequence >>= TBIP_HDR_SN_SHIFT; + command_id = pkg->hdr.command_id; + + switch (pkg->hdr.type) { + case TBIP_LOGIN: + if (!netif_running(net->dev)) + break; + + ret = tbnet_login_response(net, route, sequence, + pkg->hdr.command_id); + if (!ret) { + mutex_lock(&net->connection_lock); + net->login_received = true; + net->transmit_path = pkg->transmit_path; + + /* If we reached the number of max retries or + * previous logout, schedule another round of + * login retries + */ + if (net->login_retries >= TBNET_LOGIN_RETRIES || + !net->login_sent) { + net->login_retries = 0; + queue_delayed_work(system_long_wq, + &net->login_work, 0); + } + mutex_unlock(&net->connection_lock); + + queue_work(system_long_wq, &net->connected_work); + } + break; + + case TBIP_LOGOUT: + ret = tbnet_logout_response(net, route, sequence, command_id); + if (!ret) + tbnet_tear_down(net, false); + break; + + default: + return 0; + } + + if (ret) + netdev_warn(net->dev, "failed to send ThunderboltIP response\n"); + + return 1; +} + +static unsigned int tbnet_available_buffers(const struct tbnet_ring *ring) +{ + return ring->prod - ring->cons; +} + +static int tbnet_alloc_rx_buffers(struct tbnet *net, unsigned int nbuffers) +{ + struct tbnet_ring *ring = &net->rx_ring; + int ret; + + while (nbuffers--) { + struct device *dma_dev = tb_ring_dma_device(ring->ring); + unsigned int index = ring->prod & (TBNET_RING_SIZE - 1); + struct tbnet_frame *tf = &ring->frames[index]; + dma_addr_t dma_addr; + + if (tf->page) + break; + + /* Allocate page (order > 0) so that it can hold maximum + * ThunderboltIP frame (4kB) and the additional room for + * SKB shared info required by build_skb(). + */ + tf->page = dev_alloc_pages(TBNET_RX_PAGE_ORDER); + if (!tf->page) { + ret = -ENOMEM; + goto err_free; + } + + dma_addr = dma_map_page(dma_dev, tf->page, 0, + TBNET_RX_PAGE_SIZE, DMA_FROM_DEVICE); + if (dma_mapping_error(dma_dev, dma_addr)) { + ret = -ENOMEM; + goto err_free; + } + + tf->frame.buffer_phy = dma_addr; + tf->dev = net->dev; + + tb_ring_rx(ring->ring, &tf->frame); + + ring->prod++; + } + + return 0; + +err_free: + tbnet_free_buffers(ring); + return ret; +} + +static struct tbnet_frame *tbnet_get_tx_buffer(struct tbnet *net) +{ + struct tbnet_ring *ring = &net->tx_ring; + struct tbnet_frame *tf; + unsigned int index; + + if (!tbnet_available_buffers(ring)) + return NULL; + + index = ring->cons++ & (TBNET_RING_SIZE - 1); + + tf = &ring->frames[index]; + tf->frame.size = 0; + tf->frame.buffer_phy = 0; + + return tf; +} + +static void tbnet_tx_callback(struct tb_ring *ring, struct ring_frame *frame, + bool canceled) +{ + struct tbnet_frame *tf = container_of(frame, typeof(*tf), frame); + struct device *dma_dev = tb_ring_dma_device(ring); + struct tbnet *net = netdev_priv(tf->dev); + + dma_unmap_page(dma_dev, tf->frame.buffer_phy, tbnet_frame_size(tf), + DMA_TO_DEVICE); + + /* Return buffer to the ring */ + net->tx_ring.prod++; + + if (tbnet_available_buffers(&net->tx_ring) >= TBNET_RING_SIZE / 2) + netif_wake_queue(net->dev); +} + +static int tbnet_alloc_tx_buffers(struct tbnet *net) +{ + struct tbnet_ring *ring = &net->tx_ring; + unsigned int i; + + for (i = 0; i < TBNET_RING_SIZE; i++) { + struct tbnet_frame *tf = &ring->frames[i]; + + tf->page = alloc_page(GFP_KERNEL); + if (!tf->page) { + tbnet_free_buffers(ring); + return -ENOMEM; + } + + tf->dev = net->dev; + tf->frame.callback = tbnet_tx_callback; + tf->frame.sof = TBIP_PDF_FRAME_START; + tf->frame.eof = TBIP_PDF_FRAME_END; + } + + ring->cons = 0; + ring->prod = TBNET_RING_SIZE - 1; + + return 0; +} + +static void tbnet_connected_work(struct work_struct *work) +{ + struct tbnet *net = container_of(work, typeof(*net), connected_work); + bool connected; + int ret; + + if (netif_carrier_ok(net->dev)) + return; + + mutex_lock(&net->connection_lock); + connected = net->login_sent && net->login_received; + mutex_unlock(&net->connection_lock); + + if (!connected) + return; + + /* Both logins successful so enable the high-speed DMA paths and + * start the network device queue. + */ + ret = tb_xdomain_enable_paths(net->xd, TBNET_LOCAL_PATH, + net->rx_ring.ring->hop, + net->transmit_path, + net->tx_ring.ring->hop); + if (ret) { + netdev_err(net->dev, "failed to enable DMA paths\n"); + return; + } + + tb_ring_start(net->tx_ring.ring); + tb_ring_start(net->rx_ring.ring); + + ret = tbnet_alloc_rx_buffers(net, TBNET_RING_SIZE); + if (ret) + goto err_stop_rings; + + ret = tbnet_alloc_tx_buffers(net); + if (ret) + goto err_free_rx_buffers; + + netif_carrier_on(net->dev); + netif_start_queue(net->dev); + return; + +err_free_rx_buffers: + tbnet_free_buffers(&net->rx_ring); +err_stop_rings: + tb_ring_stop(net->rx_ring.ring); + tb_ring_stop(net->tx_ring.ring); +} + +static void tbnet_login_work(struct work_struct *work) +{ + struct tbnet *net = container_of(work, typeof(*net), login_work.work); + unsigned long delay = msecs_to_jiffies(TBNET_LOGIN_DELAY); + int ret; + + if (netif_carrier_ok(net->dev)) + return; + + ret = tbnet_login_request(net, net->login_retries % 4); + if (ret) { + if (net->login_retries++ < TBNET_LOGIN_RETRIES) { + queue_delayed_work(system_long_wq, &net->login_work, + delay); + } else { + netdev_info(net->dev, "ThunderboltIP login timed out\n"); + } + } else { + net->login_retries = 0; + + mutex_lock(&net->connection_lock); + net->login_sent = true; + mutex_unlock(&net->connection_lock); + + queue_work(system_long_wq, &net->connected_work); + } +} + +static bool tbnet_check_frame(struct tbnet *net, const struct tbnet_frame *tf, + const struct thunderbolt_ip_frame_header *hdr) +{ + u32 frame_id, frame_count, frame_size, frame_index; + unsigned int size; + + if (tf->frame.flags & RING_DESC_CRC_ERROR) { + net->stats.rx_crc_errors++; + return false; + } else if (tf->frame.flags & RING_DESC_BUFFER_OVERRUN) { + net->stats.rx_over_errors++; + return false; + } + + /* Should be greater than just header i.e. contains data */ + size = tbnet_frame_size(tf); + if (size <= sizeof(*hdr)) { + net->stats.rx_length_errors++; + return false; + } + + frame_count = le32_to_cpu(hdr->frame_count); + frame_size = le32_to_cpu(hdr->frame_size); + frame_index = le16_to_cpu(hdr->frame_index); + frame_id = le16_to_cpu(hdr->frame_id); + + if ((frame_size > size - sizeof(*hdr)) || !frame_size) { + net->stats.rx_length_errors++; + return false; + } + + /* In case we're in the middle of packet, validate the frame + * header based on first fragment of the packet. + */ + if (net->skb && net->rx_hdr.frame_count) { + /* Check the frame count fits the count field */ + if (frame_count != net->rx_hdr.frame_count) { + net->stats.rx_length_errors++; + return false; + } + + /* Check the frame identifiers are incremented correctly, + * and id is matching. + */ + if (frame_index != net->rx_hdr.frame_index + 1 || + frame_id != net->rx_hdr.frame_id) { + net->stats.rx_missed_errors++; + return false; + } + + if (net->skb->len + frame_size > TBNET_MAX_MTU) { + net->stats.rx_length_errors++; + return false; + } + + return true; + } + + /* Start of packet, validate the frame header */ + if (frame_count == 0 || frame_count > TBNET_RING_SIZE / 4) { + net->stats.rx_length_errors++; + return false; + } + if (frame_index != 0) { + net->stats.rx_missed_errors++; + return false; + } + + return true; +} + +static int tbnet_poll(struct napi_struct *napi, int budget) +{ + struct tbnet *net = container_of(napi, struct tbnet, napi); + unsigned int cleaned_count = tbnet_available_buffers(&net->rx_ring); + struct device *dma_dev = tb_ring_dma_device(net->rx_ring.ring); + unsigned int rx_packets = 0; + + while (rx_packets < budget) { + const struct thunderbolt_ip_frame_header *hdr; + unsigned int hdr_size = sizeof(*hdr); + struct sk_buff *skb = NULL; + struct ring_frame *frame; + struct tbnet_frame *tf; + struct page *page; + bool last = true; + u32 frame_size; + + /* Return some buffers to hardware, one at a time is too + * slow so allocate MAX_SKB_FRAGS buffers at the same + * time. + */ + if (cleaned_count >= MAX_SKB_FRAGS) { + tbnet_alloc_rx_buffers(net, cleaned_count); + cleaned_count = 0; + } + + frame = tb_ring_poll(net->rx_ring.ring); + if (!frame) + break; + + dma_unmap_page(dma_dev, frame->buffer_phy, + TBNET_RX_PAGE_SIZE, DMA_FROM_DEVICE); + + tf = container_of(frame, typeof(*tf), frame); + + page = tf->page; + tf->page = NULL; + net->rx_ring.cons++; + cleaned_count++; + + hdr = page_address(page); + if (!tbnet_check_frame(net, tf, hdr)) { + __free_pages(page, TBNET_RX_PAGE_ORDER); + dev_kfree_skb_any(net->skb); + net->skb = NULL; + continue; + } + + frame_size = le32_to_cpu(hdr->frame_size); + + skb = net->skb; + if (!skb) { + skb = build_skb(page_address(page), + TBNET_RX_PAGE_SIZE); + if (!skb) { + __free_pages(page, TBNET_RX_PAGE_ORDER); + net->stats.rx_errors++; + break; + } + + skb_reserve(skb, hdr_size); + skb_put(skb, frame_size); + + net->skb = skb; + } else { + skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, + page, hdr_size, frame_size, + TBNET_RX_PAGE_SIZE - hdr_size); + } + + net->rx_hdr.frame_size = frame_size; + net->rx_hdr.frame_count = le32_to_cpu(hdr->frame_count); + net->rx_hdr.frame_index = le16_to_cpu(hdr->frame_index); + net->rx_hdr.frame_id = le16_to_cpu(hdr->frame_id); + last = net->rx_hdr.frame_index == net->rx_hdr.frame_count - 1; + + rx_packets++; + net->stats.rx_bytes += frame_size; + + if (last) { + skb->protocol = eth_type_trans(skb, net->dev); + napi_gro_receive(&net->napi, skb); + net->skb = NULL; + } + } + + net->stats.rx_packets += rx_packets; + + if (cleaned_count) + tbnet_alloc_rx_buffers(net, cleaned_count); + + if (rx_packets >= budget) + return budget; + + napi_complete_done(napi, rx_packets); + /* Re-enable the ring interrupt */ + tb_ring_poll_complete(net->rx_ring.ring); + + return rx_packets; +} + +static void tbnet_start_poll(void *data) +{ + struct tbnet *net = data; + + napi_schedule(&net->napi); +} + +static int tbnet_open(struct net_device *dev) +{ + struct tbnet *net = netdev_priv(dev); + struct tb_xdomain *xd = net->xd; + u16 sof_mask, eof_mask; + struct tb_ring *ring; + + netif_carrier_off(dev); + + ring = tb_ring_alloc_tx(xd->tb->nhi, -1, TBNET_RING_SIZE, + RING_FLAG_FRAME); + if (!ring) { + netdev_err(dev, "failed to allocate Tx ring\n"); + return -ENOMEM; + } + net->tx_ring.ring = ring; + + sof_mask = BIT(TBIP_PDF_FRAME_START); + eof_mask = BIT(TBIP_PDF_FRAME_END); + + ring = tb_ring_alloc_rx(xd->tb->nhi, -1, TBNET_RING_SIZE, + RING_FLAG_FRAME | RING_FLAG_E2E, sof_mask, + eof_mask, tbnet_start_poll, net); + if (!ring) { + netdev_err(dev, "failed to allocate Rx ring\n"); + tb_ring_free(net->tx_ring.ring); + net->tx_ring.ring = NULL; + return -ENOMEM; + } + net->rx_ring.ring = ring; + + napi_enable(&net->napi); + start_login(net); + + return 0; +} + +static int tbnet_stop(struct net_device *dev) +{ + struct tbnet *net = netdev_priv(dev); + + napi_disable(&net->napi); + + tbnet_tear_down(net, true); + + tb_ring_free(net->rx_ring.ring); + net->rx_ring.ring = NULL; + tb_ring_free(net->tx_ring.ring); + net->tx_ring.ring = NULL; + + return 0; +} + +static bool tbnet_xmit_map(struct device *dma_dev, struct tbnet_frame *tf) +{ + dma_addr_t dma_addr; + + dma_addr = dma_map_page(dma_dev, tf->page, 0, tbnet_frame_size(tf), + DMA_TO_DEVICE); + if (dma_mapping_error(dma_dev, dma_addr)) + return false; + + tf->frame.buffer_phy = dma_addr; + return true; +} + +static bool tbnet_xmit_csum_and_map(struct tbnet *net, struct sk_buff *skb, + struct tbnet_frame **frames, u32 frame_count) +{ + struct thunderbolt_ip_frame_header *hdr = page_address(frames[0]->page); + struct device *dma_dev = tb_ring_dma_device(net->tx_ring.ring); + __wsum wsum = htonl(skb->len - skb_transport_offset(skb)); + unsigned int i, len, offset = skb_transport_offset(skb); + __be16 protocol = skb->protocol; + void *data = skb->data; + void *dest = hdr + 1; + __sum16 *tucso; + + if (skb->ip_summed != CHECKSUM_PARTIAL) { + /* No need to calculate checksum so we just update the + * total frame count and map the frames for DMA. + */ + for (i = 0; i < frame_count; i++) { + hdr = page_address(frames[i]->page); + hdr->frame_count = cpu_to_le32(frame_count); + if (!tbnet_xmit_map(dma_dev, frames[i])) + goto err_unmap; + } + + return true; + } + + if (protocol == htons(ETH_P_8021Q)) { + struct vlan_hdr *vhdr, vh; + + vhdr = skb_header_pointer(skb, ETH_HLEN, sizeof(vh), &vh); + if (!vhdr) + return false; + + protocol = vhdr->h_vlan_encapsulated_proto; + } + + /* Data points on the beginning of packet. + * Check is the checksum absolute place in the packet. + * ipcso will update IP checksum. + * tucso will update TCP/UPD checksum. + */ + if (protocol == htons(ETH_P_IP)) { + __sum16 *ipcso = dest + ((void *)&(ip_hdr(skb)->check) - data); + + *ipcso = 0; + *ipcso = ip_fast_csum(dest + skb_network_offset(skb), + ip_hdr(skb)->ihl); + + if (ip_hdr(skb)->protocol == IPPROTO_TCP) + tucso = dest + ((void *)&(tcp_hdr(skb)->check) - data); + else if (ip_hdr(skb)->protocol == IPPROTO_UDP) + tucso = dest + ((void *)&(udp_hdr(skb)->check) - data); + else + return false; + + *tucso = ~csum_tcpudp_magic(ip_hdr(skb)->saddr, + ip_hdr(skb)->daddr, 0, + ip_hdr(skb)->protocol, 0); + } else if (skb_is_gso_v6(skb)) { + tucso = dest + ((void *)&(tcp_hdr(skb)->check) - data); + *tucso = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, 0, + IPPROTO_TCP, 0); + return false; + } else if (protocol == htons(ETH_P_IPV6)) { + tucso = dest + skb_checksum_start_offset(skb) + skb->csum_offset; + *tucso = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, 0, + ipv6_hdr(skb)->nexthdr, 0); + } else { + return false; + } + + /* First frame was headers, rest of the frames contain data. + * Calculate checksum over each frame. + */ + for (i = 0; i < frame_count; i++) { + hdr = page_address(frames[i]->page); + dest = (void *)(hdr + 1) + offset; + len = le32_to_cpu(hdr->frame_size) - offset; + wsum = csum_partial(dest, len, wsum); + hdr->frame_count = cpu_to_le32(frame_count); + + offset = 0; + } + + *tucso = csum_fold(wsum); + + /* Checksum is finally calculated and we don't touch the memory + * anymore, so DMA map the frames now. + */ + for (i = 0; i < frame_count; i++) { + if (!tbnet_xmit_map(dma_dev, frames[i])) + goto err_unmap; + } + + return true; + +err_unmap: + while (i--) + dma_unmap_page(dma_dev, frames[i]->frame.buffer_phy, + tbnet_frame_size(frames[i]), DMA_TO_DEVICE); + + return false; +} + +static void *tbnet_kmap_frag(struct sk_buff *skb, unsigned int frag_num, + unsigned int *len) +{ + const skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_num]; + + *len = skb_frag_size(frag); + return kmap_atomic(skb_frag_page(frag)) + frag->page_offset; +} + +static netdev_tx_t tbnet_start_xmit(struct sk_buff *skb, + struct net_device *dev) +{ + struct tbnet *net = netdev_priv(dev); + struct tbnet_frame *frames[MAX_SKB_FRAGS]; + u16 frame_id = atomic_read(&net->frame_id); + struct thunderbolt_ip_frame_header *hdr; + unsigned int len = skb_headlen(skb); + unsigned int data_len = skb->len; + unsigned int nframes, i; + unsigned int frag = 0; + void *src = skb->data; + u32 frame_index = 0; + bool unmap = false; + void *dest; + + nframes = DIV_ROUND_UP(data_len, TBNET_MAX_PAYLOAD_SIZE); + if (tbnet_available_buffers(&net->tx_ring) < nframes) { + netif_stop_queue(net->dev); + return NETDEV_TX_BUSY; + } + + frames[frame_index] = tbnet_get_tx_buffer(net); + if (!frames[frame_index]) + goto err_drop; + + hdr = page_address(frames[frame_index]->page); + dest = hdr + 1; + + /* If overall packet is bigger than the frame data size */ + while (data_len > TBNET_MAX_PAYLOAD_SIZE) { + unsigned int size_left = TBNET_MAX_PAYLOAD_SIZE; + + hdr->frame_size = cpu_to_le32(TBNET_MAX_PAYLOAD_SIZE); + hdr->frame_index = cpu_to_le16(frame_index); + hdr->frame_id = cpu_to_le16(frame_id); + + do { + if (len > size_left) { + /* Copy data onto Tx buffer data with + * full frame size then break and go to + * next frame + */ + memcpy(dest, src, size_left); + len -= size_left; + dest += size_left; + src += size_left; + break; + } + + memcpy(dest, src, len); + size_left -= len; + dest += len; + + if (unmap) { + kunmap_atomic(src); + unmap = false; + } + + /* Ensure all fragments have been processed */ + if (frag < skb_shinfo(skb)->nr_frags) { + /* Map and then unmap quickly */ + src = tbnet_kmap_frag(skb, frag++, &len); + unmap = true; + } else if (unlikely(size_left > 0)) { + goto err_drop; + } + } while (size_left > 0); + + data_len -= TBNET_MAX_PAYLOAD_SIZE; + frame_index++; + + frames[frame_index] = tbnet_get_tx_buffer(net); + if (!frames[frame_index]) + goto err_drop; + + hdr = page_address(frames[frame_index]->page); + dest = hdr + 1; + } + + hdr->frame_size = cpu_to_le32(data_len); + hdr->frame_index = cpu_to_le16(frame_index); + hdr->frame_id = cpu_to_le16(frame_id); + + frames[frame_index]->frame.size = data_len + sizeof(*hdr); + + /* In case the remaining data_len is smaller than a frame */ + while (len < data_len) { + memcpy(dest, src, len); + data_len -= len; + dest += len; + + if (unmap) { + kunmap_atomic(src); + unmap = false; + } + + if (frag < skb_shinfo(skb)->nr_frags) { + src = tbnet_kmap_frag(skb, frag++, &len); + unmap = true; + } else if (unlikely(data_len > 0)) { + goto err_drop; + } + } + + memcpy(dest, src, data_len); + + if (unmap) + kunmap_atomic(src); + + if (!tbnet_xmit_csum_and_map(net, skb, frames, frame_index + 1)) + goto err_drop; + + for (i = 0; i < frame_index + 1; i++) + tb_ring_tx(net->tx_ring.ring, &frames[i]->frame); + + if (net->svc->prtcstns & TBNET_MATCH_FRAGS_ID) + atomic_inc(&net->frame_id); + + net->stats.tx_packets++; + net->stats.tx_bytes += skb->len; + + dev_consume_skb_any(skb); + + return NETDEV_TX_OK; + +err_drop: + /* We can re-use the buffers */ + net->tx_ring.cons -= frame_index; + + dev_kfree_skb_any(skb); + net->stats.tx_errors++; + + return NETDEV_TX_OK; +} + +static void tbnet_get_stats64(struct net_device *dev, + struct rtnl_link_stats64 *stats) +{ + struct tbnet *net = netdev_priv(dev); + + stats->tx_packets = net->stats.tx_packets; + stats->rx_packets = net->stats.rx_packets; + stats->tx_bytes = net->stats.tx_bytes; + stats->rx_bytes = net->stats.rx_bytes; + stats->rx_errors = net->stats.rx_errors + net->stats.rx_length_errors + + net->stats.rx_over_errors + net->stats.rx_crc_errors + + net->stats.rx_missed_errors; + stats->tx_errors = net->stats.tx_errors; + stats->rx_length_errors = net->stats.rx_length_errors; + stats->rx_over_errors = net->stats.rx_over_errors; + stats->rx_crc_errors = net->stats.rx_crc_errors; + stats->rx_missed_errors = net->stats.rx_missed_errors; +} + +static const struct net_device_ops tbnet_netdev_ops = { + .ndo_open = tbnet_open, + .ndo_stop = tbnet_stop, + .ndo_start_xmit = tbnet_start_xmit, + .ndo_get_stats64 = tbnet_get_stats64, +}; + +static void tbnet_generate_mac(struct net_device *dev) +{ + const struct tbnet *net = netdev_priv(dev); + const struct tb_xdomain *xd = net->xd; + u8 phy_port; + u32 hash; + + phy_port = tb_phy_port_from_link(TBNET_L0_PORT_NUM(xd->route)); + + /* Unicast and locally administered MAC */ + dev->dev_addr[0] = phy_port << 4 | 0x02; + hash = jhash2((u32 *)xd->local_uuid, 4, 0); + memcpy(dev->dev_addr + 1, &hash, sizeof(hash)); + hash = jhash2((u32 *)xd->local_uuid, 4, hash); + dev->dev_addr[5] = hash & 0xff; +} + +static int tbnet_probe(struct tb_service *svc, const struct tb_service_id *id) +{ + struct tb_xdomain *xd = tb_service_parent(svc); + struct net_device *dev; + struct tbnet *net; + int ret; + + dev = alloc_etherdev(sizeof(*net)); + if (!dev) + return -ENOMEM; + + SET_NETDEV_DEV(dev, &svc->dev); + + net = netdev_priv(dev); + INIT_DELAYED_WORK(&net->login_work, tbnet_login_work); + INIT_WORK(&net->connected_work, tbnet_connected_work); + mutex_init(&net->connection_lock); + atomic_set(&net->command_id, 0); + atomic_set(&net->frame_id, 0); + net->svc = svc; + net->dev = dev; + net->xd = xd; + + tbnet_generate_mac(dev); + + strcpy(dev->name, "thunderbolt%d"); + dev->netdev_ops = &tbnet_netdev_ops; + + /* ThunderboltIP takes advantage of TSO packets but instead of + * segmenting them we just split the packet into Thunderbolt + * frames (maximum payload size of each frame is 4084 bytes) and + * calculate checksum over the whole packet here. + * + * The receiving side does the opposite if the host OS supports + * LRO, otherwise it needs to split the large packet into MTU + * sized smaller packets. + * + * In order to receive large packets from the networking stack, + * we need to announce support for most of the offloading + * features here. + */ + dev->hw_features = NETIF_F_SG | NETIF_F_ALL_TSO | NETIF_F_GRO | + NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; + dev->features = dev->hw_features | NETIF_F_HIGHDMA; + dev->hard_header_len += sizeof(struct thunderbolt_ip_frame_header); + + netif_napi_add(dev, &net->napi, tbnet_poll, NAPI_POLL_WEIGHT); + + /* MTU range: 68 - 65522 */ + dev->min_mtu = ETH_MIN_MTU; + dev->max_mtu = TBNET_MAX_MTU - ETH_HLEN; + + net->handler.uuid = &tbnet_svc_uuid; + net->handler.callback = tbnet_handle_packet, + net->handler.data = net; + tb_register_protocol_handler(&net->handler); + + tb_service_set_drvdata(svc, net); + + ret = register_netdev(dev); + if (ret) { + tb_unregister_protocol_handler(&net->handler); + free_netdev(dev); + return ret; + } + + return 0; +} + +static void tbnet_remove(struct tb_service *svc) +{ + struct tbnet *net = tb_service_get_drvdata(svc); + + unregister_netdev(net->dev); + tb_unregister_protocol_handler(&net->handler); + free_netdev(net->dev); +} + +static void tbnet_shutdown(struct tb_service *svc) +{ + tbnet_tear_down(tb_service_get_drvdata(svc), true); +} + +static int __maybe_unused tbnet_suspend(struct device *dev) +{ + struct tb_service *svc = tb_to_service(dev); + struct tbnet *net = tb_service_get_drvdata(svc); + + stop_login(net); + if (netif_running(net->dev)) { + netif_device_detach(net->dev); + tb_ring_stop(net->rx_ring.ring); + tb_ring_stop(net->tx_ring.ring); + tbnet_free_buffers(&net->rx_ring); + tbnet_free_buffers(&net->tx_ring); + } + + return 0; +} + +static int __maybe_unused tbnet_resume(struct device *dev) +{ + struct tb_service *svc = tb_to_service(dev); + struct tbnet *net = tb_service_get_drvdata(svc); + + netif_carrier_off(net->dev); + if (netif_running(net->dev)) { + netif_device_attach(net->dev); + start_login(net); + } + + return 0; +} + +static const struct dev_pm_ops tbnet_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(tbnet_suspend, tbnet_resume) +}; + +static const struct tb_service_id tbnet_ids[] = { + { TB_SERVICE("network", 1) }, + { }, +}; +MODULE_DEVICE_TABLE(tbsvc, tbnet_ids); + +static struct tb_service_driver tbnet_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "thunderbolt-net", + .pm = &tbnet_pm_ops, + }, + .probe = tbnet_probe, + .remove = tbnet_remove, + .shutdown = tbnet_shutdown, + .id_table = tbnet_ids, +}; + +static int __init tbnet_init(void) +{ + int ret; + + tbnet_dir = tb_property_create_dir(&tbnet_dir_uuid); + if (!tbnet_dir) + return -ENOMEM; + + tb_property_add_immediate(tbnet_dir, "prtcid", 1); + tb_property_add_immediate(tbnet_dir, "prtcvers", 1); + tb_property_add_immediate(tbnet_dir, "prtcrevs", 1); + tb_property_add_immediate(tbnet_dir, "prtcstns", + TBNET_MATCH_FRAGS_ID); + + ret = tb_register_property_dir("network", tbnet_dir); + if (ret) { + tb_property_free_dir(tbnet_dir); + return ret; + } + + return tb_register_service_driver(&tbnet_driver); +} +module_init(tbnet_init); + +static void __exit tbnet_exit(void) +{ + tb_unregister_service_driver(&tbnet_driver); + tb_unregister_property_dir("network", tbnet_dir); + tb_property_free_dir(tbnet_dir); +} +module_exit(tbnet_exit); + +MODULE_AUTHOR("Amir Levy "); +MODULE_AUTHOR("Michael Jamet "); +MODULE_AUTHOR("Mika Westerberg "); +MODULE_DESCRIPTION("Thunderbolt network driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From 7a08c4d514b1ee70e637bb06738b13895a318e8e Mon Sep 17 00:00:00 2001 From: Al Cooper Date: Fri, 22 Sep 2017 15:34:00 -0400 Subject: dt-bindings: Add Broadcom STB USB PHY binding document Add DT bindings document for Broadcom STB USB PHYs Acked-by: Rob Herring Signed-off-by: Al Cooper Signed-off-by: Kishon Vijay Abraham I --- .../bindings/phy/brcm,brcmstb-usb-phy.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt new file mode 100644 index 000000000000..24a0d06acd1d --- /dev/null +++ b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt @@ -0,0 +1,43 @@ +Broadcom STB USB PHY + +Required properties: + - compatible: brcm,brcmstb-usb-phy + - reg: two offset and length pairs. + The first pair specifies a manditory set of memory mapped + registers used for general control of the PHY. + The second pair specifies optional registers used by some of + the SoCs that support USB 3.x + - #phy-cells: Shall be 1 as it expects one argument for setting + the type of the PHY. Possible values are: + - PHY_TYPE_USB2 for USB1.1/2.0 PHY + - PHY_TYPE_USB3 for USB3.x PHY + +Optional Properties: +- clocks : clock phandles. +- clock-names: String, clock name. +- brcm,ipp: Boolean, Invert Port Power. + Possible values are: 0 (Don't invert), 1 (Invert) +- brcm,ioc: Boolean, Invert Over Current detection. + Possible values are: 0 (Don't invert), 1 (Invert) +NOTE: one or both of the following two properties must be set +- brcm,has-xhci: Boolean indicating the phy has an XHCI phy. +- brcm,has-eohci: Boolean indicating the phy has an EHCI/OHCI phy. +- dr_mode: String, PHY Device mode. + Possible values are: "host", "peripheral ", "drd" or "typec-pd" + If this property is not defined, the phy will default to "host" mode. + +Example: + +usbphy_0: usb-phy@f0470200 { + reg = <0xf0470200 0xb8>, + <0xf0471940 0x6c0>; + compatible = "brcm,brcmstb-usb-phy"; + #phy-cells = <1>; + dr_mode = "host" + brcm,ioc = <1>; + brcm,ipp = <1>; + brcm,has-xhci; + brcm,has-eohci; + clocks = <&usb20>, <&usb30>; + clock-names = "sw_usb", "sw_usb3"; +}; -- cgit v1.2.3 From d19cd4bb234383166801b5d46365282808d0c0e5 Mon Sep 17 00:00:00 2001 From: Adam Borowski Date: Sat, 30 Sep 2017 05:57:39 +0200 Subject: Documentation/features/KASAN: mark KASAN as supported only on 64-bit on x86 Relevant part is: arch/x86/Kconfig: select HAVE_ARCH_KASAN if X86_64 && SPARSEMEM_VMEMMAP Signed-off-by: Adam Borowski Signed-off-by: Jonathan Corbet --- Documentation/features/debug/KASAN/arch-support.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/features/debug/KASAN/arch-support.txt b/Documentation/features/debug/KASAN/arch-support.txt index 76bbd7fe27b3..f377290fe48e 100644 --- a/Documentation/features/debug/KASAN/arch-support.txt +++ b/Documentation/features/debug/KASAN/arch-support.txt @@ -34,6 +34,6 @@ | tile: | TODO | | um: | TODO | | unicore32: | TODO | - | x86: | ok | + | x86: | ok | 64-bit only | xtensa: | TODO | ----------------------- -- cgit v1.2.3 From 3ce62385019fbf7d2aea4fd7c73fbd0ddad5c8fd Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Tue, 3 Oct 2017 17:54:07 +0200 Subject: Documentation: Improve softlockup_panic= description text It should say what that range is and what that integer value means. I had to look at the code... Signed-off-by: Borislav Petkov [jc: changed non-null to nonzero] Signed-off-by: Jonathan Corbet --- Documentation/admin-guide/kernel-parameters.txt | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index fcaa8558ed7e..f02961bda6f4 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3885,6 +3885,12 @@ [KNL] Should the soft-lockup detector generate panics. Format: + A nonzero value instructs the soft-lockup detector + to panic the machine when a soft-lockup occurs. This + is also controlled by CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC + which is the respective build-time switch to that + functionality. + softlockup_all_cpu_backtrace= [KNL] Should the soft-lockup detector generate backtraces on all cpus. -- cgit v1.2.3 From 852f1a21ffae19a45d4944791ce574e92a2b31ab Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Tue, 3 Oct 2017 16:16:37 -0500 Subject: docs: Update binfmt_misc links Documentation/binfmt_misc.txt moved to Documentation/admin-guide/binfmt-misc.rst Signed-off-by: Tom Saeger Signed-off-by: Jonathan Corbet --- Documentation/sysctl/README | 2 +- Documentation/sysctl/fs.txt | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/sysctl/README b/Documentation/sysctl/README index 91f54ffa0077..d5f24ab0ecc3 100644 --- a/Documentation/sysctl/README +++ b/Documentation/sysctl/README @@ -60,7 +60,7 @@ debug/ dev/ device specific information (eg dev/cdrom/info) fs/ specific filesystems filehandle, inode, dentry and quota tuning - binfmt_misc + binfmt_misc kernel/ global kernel info / tuning miscellaneous stuff net/ networking stuff, for documentation look in: diff --git a/Documentation/sysctl/fs.txt b/Documentation/sysctl/fs.txt index 35e17f748ca7..6c00c1e2743f 100644 --- a/Documentation/sysctl/fs.txt +++ b/Documentation/sysctl/fs.txt @@ -277,7 +277,7 @@ in a mount namespace. ---------------------------------------------------------- Documentation for the files in /proc/sys/fs/binfmt_misc is -in Documentation/binfmt_misc.txt. +in Documentation/admin-guide/binfmt-misc.rst. 3. /proc/sys/fs/mqueue - POSIX message queues filesystem -- cgit v1.2.3 From 06e5e0045afd5f3165ba4d11f23e448d8d2ecbd4 Mon Sep 17 00:00:00 2001 From: Jules Maselbas Date: Fri, 15 Sep 2017 18:58:46 +0200 Subject: dt-bindings: max3421: Add bindings documentation Adds bindings documentation for the max3421 driver. Signed-off-by: Jules Maselbas Acked-by: Rob Herring Signed-off-by: Greg Kroah-Hartman --- .../devicetree/bindings/usb/maxim,max3421.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/maxim,max3421.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/maxim,max3421.txt b/Documentation/devicetree/bindings/usb/maxim,max3421.txt new file mode 100644 index 000000000000..7536c3ab3e5a --- /dev/null +++ b/Documentation/devicetree/bindings/usb/maxim,max3421.txt @@ -0,0 +1,24 @@ +Maxim Integrated SPI-based USB 2.0 host controller MAX3421E + +Required properties: + - compatible: "maxim,max3421" + - spi-max-frequency: maximum frequency for this device must not exceed 26 MHz. + - reg: chip select number to which this device is connected. + - maxim,vbus-en-pin: + GPOUTx is the number (1-8) of the GPOUT pin of MAX3421E to drive Vbus. + ACTIVE_LEVEL is 0 or 1. + - interrupt-parent: the phandle of the associated interrupt controller. + - interrupts: the interuption line description for the interrupt controller. + The driver configures MAX3421E for active low level triggered interrupts, + configure your interrupt line accordingly. + +Example: + + usb@0 { + compatible = "maxim,max3421"; + reg = <0>; + maxim,vbus-en-pin = <3 1>; + spi-max-frequency = <26000000>; + interrupt-parent = <&PIC>; + interrupts = <42>; + }; -- cgit v1.2.3 From 0dc262f49232ba306303a3ebc5c01e41b2e6d1af Mon Sep 17 00:00:00 2001 From: Vikas Manocha Date: Thu, 28 Sep 2017 15:51:24 -0700 Subject: Arm: dts: stm32: remove extra compatible string for uart This patch removes the extra compatibility string "st,stm32-usart" to avoid confusion, save some time & space. Signed-off-by: Vikas Manocha Reviewed-by: Patrice Chotard Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/dma/stm32-dma.txt | 2 +- Documentation/devicetree/bindings/serial/st,stm32-usart.txt | 10 +++------- 2 files changed, 4 insertions(+), 8 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/dma/stm32-dma.txt b/Documentation/devicetree/bindings/dma/stm32-dma.txt index 4408af693d0c..6f44df94101c 100644 --- a/Documentation/devicetree/bindings/dma/stm32-dma.txt +++ b/Documentation/devicetree/bindings/dma/stm32-dma.txt @@ -71,7 +71,7 @@ channel: a phandle to the DMA controller plus the following four integer cells: Example: usart1: serial@40011000 { - compatible = "st,stm32-usart", "st,stm32-uart"; + compatible = "st,stm32-uart"; reg = <0x40011000 0x400>; interrupts = <37>; clocks = <&clk_pclk2>; diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt index 3657f9f9d17a..d150b04a6229 100644 --- a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt +++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt @@ -2,14 +2,10 @@ Required properties: - compatible: can be either: - - "st,stm32-usart", - "st,stm32-uart", - - "st,stm32f7-usart", - "st,stm32f7-uart", - - "st,stm32h7-usart" - "st,stm32h7-uart". - depending on whether the device supports synchronous mode - and is compatible with stm32(f4), stm32f7 or stm32h7. + depending is compatible with stm32(f4), stm32f7 or stm32h7. - reg: The address and length of the peripheral registers space - interrupts: - The interrupt line for the USART instance, @@ -33,7 +29,7 @@ usart4: serial@40004c00 { }; usart2: serial@40004400 { - compatible = "st,stm32-usart", "st,stm32-uart"; + compatible = "st,stm32-uart"; reg = <0x40004400 0x400>; interrupts = <38>; clocks = <&clk_pclk1>; @@ -43,7 +39,7 @@ usart2: serial@40004400 { }; usart1: serial@40011000 { - compatible = "st,stm32-usart", "st,stm32-uart"; + compatible = "st,stm32-uart"; reg = <0x40011000 0x400>; interrupts = <37>; clocks = <&rcc 0 164>; -- cgit v1.2.3 From 4038e3483c5331592d24f4ea354bb9c72c7f2d64 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Wed, 20 Sep 2017 14:29:36 +0200 Subject: dt-bindings: serial: document rs485 bindings for various devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Atmel USART, Freescale UARTs and OMAP UART all support the rs485 binding described in rs485.txt, this commit just makes that explicit. Acked-by: Nicolas Ferre Acked-by: Rob Herring Signed-off-by: Uwe Kleine-König Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/serial/atmel-usart.txt | 1 + Documentation/devicetree/bindings/serial/fsl-imx-uart.txt | 1 + Documentation/devicetree/bindings/serial/fsl-lpuart.txt | 1 + Documentation/devicetree/bindings/serial/omap_serial.txt | 1 + 4 files changed, 4 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/serial/atmel-usart.txt b/Documentation/devicetree/bindings/serial/atmel-usart.txt index e6e6142e33ac..7c0d6b2f53e4 100644 --- a/Documentation/devicetree/bindings/serial/atmel-usart.txt +++ b/Documentation/devicetree/bindings/serial/atmel-usart.txt @@ -24,6 +24,7 @@ Optional properties: - dma-names: "rx" for RX channel, "tx" for TX channel. - atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO capable USARTs. +- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt compatible description: - at91rm9200: legacy USART support diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt index 574c3a2c77d5..860a9559839a 100644 --- a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt +++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt @@ -9,6 +9,7 @@ Optional properties: - fsl,irda-mode : Indicate the uart supports irda mode - fsl,dte-mode : Indicate the uart works in DTE mode. The uart works in DCE mode by default. +- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt Please check Documentation/devicetree/bindings/serial/serial.txt for the complete list of generic properties. diff --git a/Documentation/devicetree/bindings/serial/fsl-lpuart.txt b/Documentation/devicetree/bindings/serial/fsl-lpuart.txt index a1252a047f78..59567b51cf09 100644 --- a/Documentation/devicetree/bindings/serial/fsl-lpuart.txt +++ b/Documentation/devicetree/bindings/serial/fsl-lpuart.txt @@ -16,6 +16,7 @@ Required properties: Optional properties: - dmas: A list of two dma specifiers, one for each entry in dma-names. - dma-names: should contain "tx" and "rx". +- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt Note: Optional properties for DMA support. Write them both or both not. diff --git a/Documentation/devicetree/bindings/serial/omap_serial.txt b/Documentation/devicetree/bindings/serial/omap_serial.txt index 7a71b5de77d6..43eac675f21f 100644 --- a/Documentation/devicetree/bindings/serial/omap_serial.txt +++ b/Documentation/devicetree/bindings/serial/omap_serial.txt @@ -19,6 +19,7 @@ Optional properties: - dmas : DMA specifier, consisting of a phandle to the DMA controller node and a DMA channel number. - dma-names : "rx" for receive channel, "tx" for transmit channel. +- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt Example: -- cgit v1.2.3 From ebc4768ac4971eab4b570e733e47ac9dfd0e4175 Mon Sep 17 00:00:00 2001 From: Jan Kandziora Date: Wed, 20 Sep 2017 23:52:46 +0200 Subject: add w1_ds28e17 driver for the DS28E17 Onewire to I2C master bridge This subpatch adds a driver for the DS28E17 Onewire to I2C master bridge. Signed-off-by: Jan Kandziora Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman --- Documentation/ABI/testing/sysfs-driver-w1_ds28e17 | 21 + Documentation/w1/slaves/00-INDEX | 2 + Documentation/w1/slaves/w1_ds28e17 | 68 ++ drivers/w1/slaves/Kconfig | 15 + drivers/w1/slaves/Makefile | 1 + drivers/w1/slaves/w1_ds28e17.c | 771 ++++++++++++++++++++++ 6 files changed, 878 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-driver-w1_ds28e17 create mode 100644 Documentation/w1/slaves/w1_ds28e17 create mode 100644 drivers/w1/slaves/w1_ds28e17.c (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-driver-w1_ds28e17 b/Documentation/ABI/testing/sysfs-driver-w1_ds28e17 new file mode 100644 index 000000000000..d301e7017afe --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-w1_ds28e17 @@ -0,0 +1,21 @@ +What: /sys/bus/w1/devices/19-/speed +Date: Sep 2017 +KernelVersion: 4.14 +Contact: Jan Kandziora +Description: When written, this file sets the I2C speed on the connected + DS28E17 chip. When read, it reads the current setting from + the DS28E17 chip. + Valid values: 100, 400, 900 [kBaud]. + Default 100, can be set by w1_ds28e17.speed= module parameter. +Users: w1_ds28e17 driver + +What: /sys/bus/w1/devices/19-/stretch +Date: Sep 2017 +KernelVersion: 4.14 +Contact: Jan Kandziora +Description: When written, this file sets the multiplier used to calculate + the busy timeout for I2C operations on the connected DS28E17 + chip. When read, returns the current setting. + Valid values: 1 to 9. + Default 1, can be set by w1_ds28e17.stretch= module parameter. +Users: w1_ds28e17 driver diff --git a/Documentation/w1/slaves/00-INDEX b/Documentation/w1/slaves/00-INDEX index 8d76718e1ea2..68946f83e579 100644 --- a/Documentation/w1/slaves/00-INDEX +++ b/Documentation/w1/slaves/00-INDEX @@ -10,3 +10,5 @@ w1_ds2438 - The Maxim/Dallas Semiconductor ds2438 smart battery monitor. w1_ds28e04 - The Maxim/Dallas Semiconductor ds28e04 eeprom. +w1_ds28e17 + - The Maxim/Dallas Semiconductor ds28e17 1-Wire-to-I2C Master Bridge. diff --git a/Documentation/w1/slaves/w1_ds28e17 b/Documentation/w1/slaves/w1_ds28e17 new file mode 100644 index 000000000000..7fcfad5b4a37 --- /dev/null +++ b/Documentation/w1/slaves/w1_ds28e17 @@ -0,0 +1,68 @@ +Kernel driver w1_ds28e17 +======================== + +Supported chips: + * Maxim DS28E17 1-Wire-to-I2C Master Bridge + +supported family codes: + W1_FAMILY_DS28E17 0x19 + +Author: Jan Kandziora + + +Description +----------- +The DS28E17 is a Onewire slave device which acts as an I2C bus master. + +This driver creates a new I2C bus for any DS28E17 device detected. I2C buses +come and go as the DS28E17 devices come and go. I2C slave devices connected to +a DS28E17 can be accessed by the kernel or userspace tools as if they were +connected to a "native" I2C bus master. + + +An udev rule like the following +------------------------------------------------------------------------------- +SUBSYSTEM=="i2c-dev", KERNEL=="i2c-[0-9]*", ATTRS{name}=="w1-19-*", \ + SYMLINK+="i2c-$attr{name}" +------------------------------------------------------------------------------- +may be used to create stable /dev/i2c- entries based on the unique id of the +DS28E17 chip. + + +Driver parameters are: + +speed: + This sets up the default I2C speed a DS28E17 get configured for as soon + it is connected. The power-on default of the DS28E17 is 400kBaud, but + chips may come and go on the Onewire bus without being de-powered and + as soon the "w1_ds28e17" driver notices a freshly connected, or + reconnected DS28E17 device on the Onewire bus, it will re-apply this + setting. + + Valid values are 100, 400, 900 [kBaud]. Any other value means to leave + alone the current DS28E17 setting on detect. The default value is 100. + +stretch: + This sets up the default stretch value used for freshly connected + DS28E17 devices. It is a multiplier used on the calculation of the busy + wait time for an I2C transfer. This is to account for I2C slave devices + which make heavy use of the I2C clock stretching feature and thus, the + needed timeout cannot be pre-calculated correctly. As the w1_ds28e17 + driver checks the DS28E17's busy flag in a loop after the precalculated + wait time, it should be hardly needed to tweak this setting. + + Leave it at 1 unless you get ETIMEDOUT errors and a "w1_slave_driver + 19-00000002dbd8: busy timeout" in the kernel log. + + Valid values are 1 to 9. The default is 1. + + +The driver creates sysfs files /sys/bus/w1/devices/19-/speed and +/sys/bus/w1/devices/19-/stretch for each device, preloaded with the default +settings from the driver parameters. They may be changed anytime. In addition a +directory /sys/bus/w1/devices/19-/i2c- for the I2C bus master sysfs +structure is created. + + +See https://github.com/ianka/w1_ds28e17 for even more information. + diff --git a/drivers/w1/slaves/Kconfig b/drivers/w1/slaves/Kconfig index 3c945f9f5f0f..7931231d8e80 100644 --- a/drivers/w1/slaves/Kconfig +++ b/drivers/w1/slaves/Kconfig @@ -148,4 +148,19 @@ config W1_SLAVE_DS28E04 If you are unsure, say N. +config W1_SLAVE_DS28E17 + tristate "1-wire-to-I2C master bridge (DS28E17)" + select CRC16 + depends on I2C + help + Say Y here if you want to use the DS28E17 1-wire-to-I2C master bridge. + For each DS28E17 detected, a new I2C adapter is created within the + kernel. I2C devices on that bus can be configured to be used by the + kernel and userspace tools as on any other "native" I2C bus. + + This driver is also available as a module. If so, the module + will be called w1_ds28e17. + + If you are unsure, say N. + endmenu diff --git a/drivers/w1/slaves/Makefile b/drivers/w1/slaves/Makefile index 36b22fb2d3a1..855371a99e6a 100644 --- a/drivers/w1/slaves/Makefile +++ b/drivers/w1/slaves/Makefile @@ -17,3 +17,4 @@ obj-$(CONFIG_W1_SLAVE_DS2760) += w1_ds2760.o obj-$(CONFIG_W1_SLAVE_DS2780) += w1_ds2780.o obj-$(CONFIG_W1_SLAVE_DS2781) += w1_ds2781.o obj-$(CONFIG_W1_SLAVE_DS28E04) += w1_ds28e04.o +obj-$(CONFIG_W1_SLAVE_DS28E17) += w1_ds28e17.o diff --git a/drivers/w1/slaves/w1_ds28e17.c b/drivers/w1/slaves/w1_ds28e17.c new file mode 100644 index 000000000000..e78b63ea4daf --- /dev/null +++ b/drivers/w1/slaves/w1_ds28e17.c @@ -0,0 +1,771 @@ +/* + * w1_ds28e17.c - w1 family 19 (DS28E17) driver + * + * Copyright (c) 2016 Jan Kandziora + * + * This source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define CRC16_INIT 0 + +#include + +#define W1_FAMILY_DS28E17 0x19 + +/* Module setup. */ +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Jan Kandziora "); +MODULE_DESCRIPTION("w1 family 19 driver for DS28E17, 1-wire to I2C master bridge"); +MODULE_ALIAS("w1-family-" __stringify(W1_FAMILY_DS28E17)); + + +/* Default I2C speed to be set when a DS28E17 is detected. */ +static int i2c_speed = 100; +module_param_named(speed, i2c_speed, int, (S_IRUSR | S_IWUSR)); +MODULE_PARM_DESC(speed, "Default I2C speed to be set when a DS28E17 is detected"); + +/* Default I2C stretch value to be set when a DS28E17 is detected. */ +static char i2c_stretch = 1; +module_param_named(stretch, i2c_stretch, byte, (S_IRUSR | S_IWUSR)); +MODULE_PARM_DESC(stretch, "Default I2C stretch value to be set when a DS28E17 is detected"); + +/* DS28E17 device command codes. */ +#define W1_F19_WRITE_DATA_WITH_STOP 0x4B +#define W1_F19_WRITE_DATA_NO_STOP 0x5A +#define W1_F19_WRITE_DATA_ONLY 0x69 +#define W1_F19_WRITE_DATA_ONLY_WITH_STOP 0x78 +#define W1_F19_READ_DATA_WITH_STOP 0x87 +#define W1_F19_WRITE_READ_DATA_WITH_STOP 0x2D +#define W1_F19_WRITE_CONFIGURATION 0xD2 +#define W1_F19_READ_CONFIGURATION 0xE1 +#define W1_F19_ENABLE_SLEEP_MODE 0x1E +#define W1_F19_READ_DEVICE_REVISION 0xC4 + +/* DS28E17 status bits */ +#define W1_F19_STATUS_CRC 0x01 +#define W1_F19_STATUS_ADDRESS 0x02 +#define W1_F19_STATUS_START 0x08 + +/* + * Maximum number of I2C bytes to transfer within one CRC16 protected onewire + * command. + * */ +#define W1_F19_WRITE_DATA_LIMIT 255 + +/* Maximum number of I2C bytes to read with one onewire command. */ +#define W1_F19_READ_DATA_LIMIT 255 + +/* Constants for calculating the busy sleep. */ +#define W1_F19_BUSY_TIMEBASES { 90, 23, 10 } +#define W1_F19_BUSY_GRATUITY 1000 + +/* Number of checks for the busy flag before timeout. */ +#define W1_F19_BUSY_CHECKS 1000 + + +/* Slave specific data. */ +struct w1_f19_data { + u8 speed; + u8 stretch; + struct i2c_adapter adapter; +}; + + +/* Wait a while until the busy flag clears. */ +static int w1_f19_i2c_busy_wait(struct w1_slave *sl, size_t count) +{ + const unsigned long timebases[3] = W1_F19_BUSY_TIMEBASES; + struct w1_f19_data *data = sl->family_data; + unsigned int checks; + + /* Check the busy flag first in any case.*/ + if (w1_touch_bit(sl->master, 1) == 0) + return 0; + + /* + * Do a generously long sleep in the beginning, + * as we have to wait at least this time for all + * the I2C bytes at the given speed to be transferred. + */ + usleep_range(timebases[data->speed] * (data->stretch) * count, + timebases[data->speed] * (data->stretch) * count + + W1_F19_BUSY_GRATUITY); + + /* Now continusly check the busy flag sent by the DS28E17. */ + checks = W1_F19_BUSY_CHECKS; + while ((checks--) > 0) { + /* Return success if the busy flag is cleared. */ + if (w1_touch_bit(sl->master, 1) == 0) + return 0; + + /* Wait one non-streched byte timeslot. */ + udelay(timebases[data->speed]); + } + + /* Timeout. */ + dev_warn(&sl->dev, "busy timeout\n"); + return -ETIMEDOUT; +} + + +/* Utility function: result. */ +static size_t w1_f19_error(struct w1_slave *sl, u8 w1_buf[]) +{ + /* Warnings. */ + if (w1_buf[0] & W1_F19_STATUS_CRC) + dev_warn(&sl->dev, "crc16 mismatch\n"); + if (w1_buf[0] & W1_F19_STATUS_ADDRESS) + dev_warn(&sl->dev, "i2c device not responding\n"); + if ((w1_buf[0] & (W1_F19_STATUS_CRC | W1_F19_STATUS_ADDRESS)) == 0 + && w1_buf[1] != 0) { + dev_warn(&sl->dev, "i2c short write, %d bytes not acknowledged\n", + w1_buf[1]); + } + + /* Check error conditions. */ + if (w1_buf[0] & W1_F19_STATUS_ADDRESS) + return -ENXIO; + if (w1_buf[0] & W1_F19_STATUS_START) + return -EAGAIN; + if (w1_buf[0] != 0 || w1_buf[1] != 0) + return -EIO; + + /* All ok. */ + return 0; +} + + +/* Utility function: write data to I2C slave, single chunk. */ +static int __w1_f19_i2c_write(struct w1_slave *sl, + const u8 *command, size_t command_count, + const u8 *buffer, size_t count) +{ + u16 crc; + int error; + u8 w1_buf[2]; + + /* Send command and I2C data to DS28E17. */ + crc = crc16(CRC16_INIT, command, command_count); + w1_write_block(sl->master, command, command_count); + + w1_buf[0] = count; + crc = crc16(crc, w1_buf, 1); + w1_write_8(sl->master, w1_buf[0]); + + crc = crc16(crc, buffer, count); + w1_write_block(sl->master, buffer, count); + + w1_buf[0] = ~(crc & 0xFF); + w1_buf[1] = ~((crc >> 8) & 0xFF); + w1_write_block(sl->master, w1_buf, 2); + + /* Wait until busy flag clears (or timeout). */ + if (w1_f19_i2c_busy_wait(sl, count + 1) < 0) + return -ETIMEDOUT; + + /* Read status from DS28E17. */ + w1_read_block(sl->master, w1_buf, 2); + + /* Check error conditions. */ + error = w1_f19_error(sl, w1_buf); + if (error < 0) + return error; + + /* Return number of bytes written. */ + return count; +} + + +/* Write data to I2C slave. */ +static int w1_f19_i2c_write(struct w1_slave *sl, u16 i2c_address, + const u8 *buffer, size_t count, bool stop) +{ + int result; + int remaining = count; + const u8 *p; + u8 command[2]; + + /* Check input. */ + if (count == 0) + return -EOPNOTSUPP; + + /* Check whether we need multiple commands. */ + if (count <= W1_F19_WRITE_DATA_LIMIT) { + /* + * Small data amount. Data can be sent with + * a single onewire command. + */ + + /* Send all data to DS28E17. */ + command[0] = (stop ? W1_F19_WRITE_DATA_WITH_STOP + : W1_F19_WRITE_DATA_NO_STOP); + command[1] = i2c_address << 1; + result = __w1_f19_i2c_write(sl, command, 2, buffer, count); + } else { + /* Large data amount. Data has to be sent in multiple chunks. */ + + /* Send first chunk to DS28E17. */ + p = buffer; + command[0] = W1_F19_WRITE_DATA_NO_STOP; + command[1] = i2c_address << 1; + result = __w1_f19_i2c_write(sl, command, 2, p, + W1_F19_WRITE_DATA_LIMIT); + if (result < 0) + return result; + + /* Resume to same DS28E17. */ + if (w1_reset_resume_command(sl->master)) + return -EIO; + + /* Next data chunk. */ + p += W1_F19_WRITE_DATA_LIMIT; + remaining -= W1_F19_WRITE_DATA_LIMIT; + + while (remaining > W1_F19_WRITE_DATA_LIMIT) { + /* Send intermediate chunk to DS28E17. */ + command[0] = W1_F19_WRITE_DATA_ONLY; + result = __w1_f19_i2c_write(sl, command, 1, p, + W1_F19_WRITE_DATA_LIMIT); + if (result < 0) + return result; + + /* Resume to same DS28E17. */ + if (w1_reset_resume_command(sl->master)) + return -EIO; + + /* Next data chunk. */ + p += W1_F19_WRITE_DATA_LIMIT; + remaining -= W1_F19_WRITE_DATA_LIMIT; + } + + /* Send final chunk to DS28E17. */ + command[0] = (stop ? W1_F19_WRITE_DATA_ONLY_WITH_STOP + : W1_F19_WRITE_DATA_ONLY); + result = __w1_f19_i2c_write(sl, command, 1, p, remaining); + } + + return result; +} + + +/* Read data from I2C slave. */ +static int w1_f19_i2c_read(struct w1_slave *sl, u16 i2c_address, + u8 *buffer, size_t count) +{ + u16 crc; + int error; + u8 w1_buf[5]; + + /* Check input. */ + if (count == 0) + return -EOPNOTSUPP; + + /* Send command to DS28E17. */ + w1_buf[0] = W1_F19_READ_DATA_WITH_STOP; + w1_buf[1] = i2c_address << 1 | 0x01; + w1_buf[2] = count; + crc = crc16(CRC16_INIT, w1_buf, 3); + w1_buf[3] = ~(crc & 0xFF); + w1_buf[4] = ~((crc >> 8) & 0xFF); + w1_write_block(sl->master, w1_buf, 5); + + /* Wait until busy flag clears (or timeout). */ + if (w1_f19_i2c_busy_wait(sl, count + 1) < 0) + return -ETIMEDOUT; + + /* Read status from DS28E17. */ + w1_buf[0] = w1_read_8(sl->master); + w1_buf[1] = 0; + + /* Check error conditions. */ + error = w1_f19_error(sl, w1_buf); + if (error < 0) + return error; + + /* Read received I2C data from DS28E17. */ + return w1_read_block(sl->master, buffer, count); +} + + +/* Write to, then read data from I2C slave. */ +static int w1_f19_i2c_write_read(struct w1_slave *sl, u16 i2c_address, + const u8 *wbuffer, size_t wcount, u8 *rbuffer, size_t rcount) +{ + u16 crc; + int error; + u8 w1_buf[3]; + + /* Check input. */ + if (wcount == 0 || rcount == 0) + return -EOPNOTSUPP; + + /* Send command and I2C data to DS28E17. */ + w1_buf[0] = W1_F19_WRITE_READ_DATA_WITH_STOP; + w1_buf[1] = i2c_address << 1; + w1_buf[2] = wcount; + crc = crc16(CRC16_INIT, w1_buf, 3); + w1_write_block(sl->master, w1_buf, 3); + + crc = crc16(crc, wbuffer, wcount); + w1_write_block(sl->master, wbuffer, wcount); + + w1_buf[0] = rcount; + crc = crc16(crc, w1_buf, 1); + w1_buf[1] = ~(crc & 0xFF); + w1_buf[2] = ~((crc >> 8) & 0xFF); + w1_write_block(sl->master, w1_buf, 3); + + /* Wait until busy flag clears (or timeout). */ + if (w1_f19_i2c_busy_wait(sl, wcount + rcount + 2) < 0) + return -ETIMEDOUT; + + /* Read status from DS28E17. */ + w1_read_block(sl->master, w1_buf, 2); + + /* Check error conditions. */ + error = w1_f19_error(sl, w1_buf); + if (error < 0) + return error; + + /* Read received I2C data from DS28E17. */ + return w1_read_block(sl->master, rbuffer, rcount); +} + + +/* Do an I2C master transfer. */ +static int w1_f19_i2c_master_transfer(struct i2c_adapter *adapter, + struct i2c_msg *msgs, int num) +{ + struct w1_slave *sl = (struct w1_slave *) adapter->algo_data; + int i = 0; + int result = 0; + + /* Start onewire transaction. */ + mutex_lock(&sl->master->bus_mutex); + + /* Select DS28E17. */ + if (w1_reset_select_slave(sl)) { + i = -EIO; + goto error; + } + + /* Loop while there are still messages to transfer. */ + while (i < num) { + /* + * Check for special case: Small write followed + * by read to same I2C device. + */ + if (i < (num-1) + && msgs[i].addr == msgs[i+1].addr + && !(msgs[i].flags & I2C_M_RD) + && (msgs[i+1].flags & I2C_M_RD) + && (msgs[i].len <= W1_F19_WRITE_DATA_LIMIT)) { + /* + * The DS28E17 has a combined transfer + * for small write+read. + */ + result = w1_f19_i2c_write_read(sl, msgs[i].addr, + msgs[i].buf, msgs[i].len, + msgs[i+1].buf, msgs[i+1].len); + if (result < 0) { + i = result; + goto error; + } + + /* + * Check if we should interpret the read data + * as a length byte. The DS28E17 unfortunately + * has no read without stop, so we can just do + * another simple read in that case. + */ + if (msgs[i+1].flags & I2C_M_RECV_LEN) { + result = w1_f19_i2c_read(sl, msgs[i+1].addr, + &(msgs[i+1].buf[1]), msgs[i+1].buf[0]); + if (result < 0) { + i = result; + goto error; + } + } + + /* Eat up read message, too. */ + i++; + } else if (msgs[i].flags & I2C_M_RD) { + /* Read transfer. */ + result = w1_f19_i2c_read(sl, msgs[i].addr, + msgs[i].buf, msgs[i].len); + if (result < 0) { + i = result; + goto error; + } + + /* + * Check if we should interpret the read data + * as a length byte. The DS28E17 unfortunately + * has no read without stop, so we can just do + * another simple read in that case. + */ + if (msgs[i].flags & I2C_M_RECV_LEN) { + result = w1_f19_i2c_read(sl, + msgs[i].addr, + &(msgs[i].buf[1]), + msgs[i].buf[0]); + if (result < 0) { + i = result; + goto error; + } + } + } else { + /* + * Write transfer. + * Stop condition only for last + * transfer. + */ + result = w1_f19_i2c_write(sl, + msgs[i].addr, + msgs[i].buf, + msgs[i].len, + i == (num-1)); + if (result < 0) { + i = result; + goto error; + } + } + + /* Next message. */ + i++; + + /* Are there still messages to send/receive? */ + if (i < num) { + /* Yes. Resume to same DS28E17. */ + if (w1_reset_resume_command(sl->master)) { + i = -EIO; + goto error; + } + } + } + +error: + /* End onewire transaction. */ + mutex_unlock(&sl->master->bus_mutex); + + /* Return number of messages processed or error. */ + return i; +} + + +/* Get I2C adapter functionality. */ +static u32 w1_f19_i2c_functionality(struct i2c_adapter *adapter) +{ + /* + * Plain I2C functions only. + * SMBus is emulated by the kernel's I2C layer. + * No "I2C_FUNC_SMBUS_QUICK" + * No "I2C_FUNC_SMBUS_READ_BLOCK_DATA" + * No "I2C_FUNC_SMBUS_BLOCK_PROC_CALL" + */ + return I2C_FUNC_I2C | + I2C_FUNC_SMBUS_BYTE | + I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_WORD_DATA | + I2C_FUNC_SMBUS_PROC_CALL | + I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | + I2C_FUNC_SMBUS_I2C_BLOCK | + I2C_FUNC_SMBUS_PEC; +} + + +/* I2C adapter quirks. */ +static const struct i2c_adapter_quirks w1_f19_i2c_adapter_quirks = { + .max_read_len = W1_F19_READ_DATA_LIMIT, +}; + +/* I2C algorithm. */ +static const struct i2c_algorithm w1_f19_i2c_algorithm = { + .master_xfer = w1_f19_i2c_master_transfer, + .functionality = w1_f19_i2c_functionality, +}; + + +/* Read I2C speed from DS28E17. */ +static int w1_f19_get_i2c_speed(struct w1_slave *sl) +{ + struct w1_f19_data *data = sl->family_data; + int result = -EIO; + + /* Start onewire transaction. */ + mutex_lock(&sl->master->bus_mutex); + + /* Select slave. */ + if (w1_reset_select_slave(sl)) + goto error; + + /* Read slave configuration byte. */ + w1_write_8(sl->master, W1_F19_READ_CONFIGURATION); + result = w1_read_8(sl->master); + if (result < 0 || result > 2) { + result = -EIO; + goto error; + } + + /* Update speed in slave specific data. */ + data->speed = result; + +error: + /* End onewire transaction. */ + mutex_unlock(&sl->master->bus_mutex); + + return result; +} + + +/* Set I2C speed on DS28E17. */ +static int __w1_f19_set_i2c_speed(struct w1_slave *sl, u8 speed) +{ + struct w1_f19_data *data = sl->family_data; + const int i2c_speeds[3] = { 100, 400, 900 }; + u8 w1_buf[2]; + + /* Select slave. */ + if (w1_reset_select_slave(sl)) + return -EIO; + + w1_buf[0] = W1_F19_WRITE_CONFIGURATION; + w1_buf[1] = speed; + w1_write_block(sl->master, w1_buf, 2); + + /* Update speed in slave specific data. */ + data->speed = speed; + + dev_info(&sl->dev, "i2c speed set to %d kBaud\n", i2c_speeds[speed]); + + return 0; +} + +static int w1_f19_set_i2c_speed(struct w1_slave *sl, u8 speed) +{ + int result; + + /* Start onewire transaction. */ + mutex_lock(&sl->master->bus_mutex); + + /* Set I2C speed on DS28E17. */ + result = __w1_f19_set_i2c_speed(sl, speed); + + /* End onewire transaction. */ + mutex_unlock(&sl->master->bus_mutex); + + return result; +} + + +/* Sysfs attributes. */ + +/* I2C speed attribute for a single chip. */ +static ssize_t speed_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct w1_slave *sl = dev_to_w1_slave(dev); + int result; + + /* Read current speed from slave. Updates data->speed. */ + result = w1_f19_get_i2c_speed(sl); + if (result < 0) + return result; + + /* Return current speed value. */ + return sprintf(buf, "%d\n", result); +} + +static ssize_t speed_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct w1_slave *sl = dev_to_w1_slave(dev); + int error; + + /* Valid values are: "100", "400", "900" */ + if (count < 3 || count > 4 || !buf) + return -EINVAL; + if (count == 4 && buf[3] != '\n') + return -EINVAL; + if (buf[1] != '0' || buf[2] != '0') + return -EINVAL; + + /* Set speed on slave. */ + switch (buf[0]) { + case '1': + error = w1_f19_set_i2c_speed(sl, 0); + break; + case '4': + error = w1_f19_set_i2c_speed(sl, 1); + break; + case '9': + error = w1_f19_set_i2c_speed(sl, 2); + break; + default: + return -EINVAL; + } + + if (error < 0) + return error; + + /* Return bytes written. */ + return count; +} + +static DEVICE_ATTR_RW(speed); + + +/* Busy stretch attribute for a single chip. */ +static ssize_t stretch_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct w1_slave *sl = dev_to_w1_slave(dev); + struct w1_f19_data *data = sl->family_data; + + /* Return current stretch value. */ + return sprintf(buf, "%d\n", data->stretch); +} + +static ssize_t stretch_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct w1_slave *sl = dev_to_w1_slave(dev); + struct w1_f19_data *data = sl->family_data; + + /* Valid values are '1' to '9' */ + if (count < 1 || count > 2 || !buf) + return -EINVAL; + if (count == 2 && buf[1] != '\n') + return -EINVAL; + if (buf[0] < '1' || buf[0] > '9') + return -EINVAL; + + /* Set busy stretch value. */ + data->stretch = buf[0] & 0x0F; + + /* Return bytes written. */ + return count; +} + +static DEVICE_ATTR_RW(stretch); + + +/* All attributes. */ +static struct attribute *w1_f19_attrs[] = { + &dev_attr_speed.attr, + &dev_attr_stretch.attr, + NULL, +}; + +static const struct attribute_group w1_f19_group = { + .attrs = w1_f19_attrs, +}; + +static const struct attribute_group *w1_f19_groups[] = { + &w1_f19_group, + NULL, +}; + + +/* Slave add and remove functions. */ +static int w1_f19_add_slave(struct w1_slave *sl) +{ + struct w1_f19_data *data = NULL; + + /* Allocate memory for slave specific data. */ + data = devm_kzalloc(&sl->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + sl->family_data = data; + + /* Setup default I2C speed on slave. */ + switch (i2c_speed) { + case 100: + __w1_f19_set_i2c_speed(sl, 0); + break; + case 400: + __w1_f19_set_i2c_speed(sl, 1); + break; + case 900: + __w1_f19_set_i2c_speed(sl, 2); + break; + default: + /* + * A i2c_speed module parameter of anything else + * than 100, 400, 900 means not to touch the + * speed of the DS28E17. + * We assume 400kBaud, the power-on value. + */ + data->speed = 1; + } + + /* + * Setup default busy stretch + * configuration for the DS28E17. + */ + data->stretch = i2c_stretch; + + /* Setup I2C adapter. */ + data->adapter.owner = THIS_MODULE; + data->adapter.algo = &w1_f19_i2c_algorithm; + data->adapter.algo_data = sl; + strcpy(data->adapter.name, "w1-"); + strcat(data->adapter.name, sl->name); + data->adapter.dev.parent = &sl->dev; + data->adapter.quirks = &w1_f19_i2c_adapter_quirks; + + return i2c_add_adapter(&data->adapter); +} + +static void w1_f19_remove_slave(struct w1_slave *sl) +{ + struct w1_f19_data *family_data = sl->family_data; + + /* Delete I2C adapter. */ + i2c_del_adapter(&family_data->adapter); + + /* Free slave specific data. */ + devm_kfree(&sl->dev, family_data); + sl->family_data = NULL; +} + + +/* Declarations within the w1 subsystem. */ +static struct w1_family_ops w1_f19_fops = { + .add_slave = w1_f19_add_slave, + .remove_slave = w1_f19_remove_slave, + .groups = w1_f19_groups, +}; + +static struct w1_family w1_family_19 = { + .fid = W1_FAMILY_DS28E17, + .fops = &w1_f19_fops, +}; + + +/* Module init and remove functions. */ +static int __init w1_f19_init(void) +{ + return w1_register_family(&w1_family_19); +} + +static void __exit w1_f19_fini(void) +{ + w1_unregister_family(&w1_family_19); +} + +module_init(w1_f19_init); +module_exit(w1_f19_fini); + -- cgit v1.2.3 From eeb8b4934f2e9dce2e2c9adc28ce8571e53b8aec Mon Sep 17 00:00:00 2001 From: Oleksij Rempel Date: Sun, 17 Sep 2017 12:33:42 +0200 Subject: nvmem: dt: document SNVS LPGPR binding Documentation bindings for the Low Power General Purpose Register available on i.MX6 SoCs in the Secure Non-Volatile Storage. Signed-off-by: Oleksij Rempel Acked-by: Rob Herring Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman --- .../devicetree/bindings/nvmem/snvs-lpgpr.txt | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/snvs-lpgpr.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/nvmem/snvs-lpgpr.txt b/Documentation/devicetree/bindings/nvmem/snvs-lpgpr.txt new file mode 100644 index 000000000000..20bc49b49799 --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/snvs-lpgpr.txt @@ -0,0 +1,20 @@ +Device tree bindings for Low Power General Purpose Register found in i.MX6Q/D +Secure Non-Volatile Storage. + +This DT node should be represented as a sub-node of a "syscon", +"simple-mfd" node. + +Required properties: +- compatible: should be one of the fallowing variants: + "fsl,imx6q-snvs-lpgpr" for Freescale i.MX6Q/D/DL/S + "fsl,imx6ul-snvs-lpgpr" for Freescale i.MX6UL + +Example: +snvs: snvs@020cc000 { + compatible = "fsl,sec-v4.0-mon", "syscon", "simple-mfd"; + reg = <0x020cc000 0x4000>; + + snvs_lpgpr: snvs-lpgpr { + compatible = "fsl,imx6q-snvs-lpgpr"; + }; +}; -- cgit v1.2.3 From c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Thu, 21 Sep 2017 20:58:49 -0700 Subject: vmbus: add per-channel sysfs info This extends existing vmbus related sysfs structure to provide per-channel state information. This is useful when diagnosing issues with multiple queues in networking and storage. The existing sysfs only displayed information about the primary channel. The one place it reported multiple channels was the channel_vp_mapping file which violated the sysfs convention of one value per file. Signed-off-by: Stephen Hemminger Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- Documentation/ABI/stable/sysfs-bus-vmbus | 56 ++++++++++ drivers/hv/channel_mgmt.c | 10 +- drivers/hv/hyperv_vmbus.h | 2 + drivers/hv/vmbus_drv.c | 185 +++++++++++++++++++++++++++++-- include/linux/hyperv.h | 6 + 5 files changed, 246 insertions(+), 13 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/stable/sysfs-bus-vmbus b/Documentation/ABI/stable/sysfs-bus-vmbus index 5d0125f7bcaf..0ebd8a1537a0 100644 --- a/Documentation/ABI/stable/sysfs-bus-vmbus +++ b/Documentation/ABI/stable/sysfs-bus-vmbus @@ -41,3 +41,59 @@ KernelVersion: 4.5 Contact: K. Y. Srinivasan Description: The 16 bit vendor ID of the device Users: tools/hv/lsvmbus and user level RDMA libraries + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/cpu +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger +Description: VCPU (sub)channel is affinitized to +Users: tools/hv/lsvmbus and other debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/cpu +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger +Description: VCPU (sub)channel is affinitized to +Users: tools/hv/lsvmbus and other debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/in_mask +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger +Description: Inbound channel signaling state +Users: Debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/latency +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger +Description: Channel signaling latency +Users: Debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/out_mask +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger +Description: Outbound channel signaling state +Users: Debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/pending +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger +Description: Channel interrupt pending state +Users: Debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/read_avail +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger +Description: Bytes availabble to read +Users: Debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/write_avail +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger +Description: Bytes availabble to write +Users: Debuggig tools diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index 060df71c2e8b..dd2dffe816be 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -350,7 +350,7 @@ static void free_channel(struct vmbus_channel *channel) { tasklet_kill(&channel->callback_event); - kfree_rcu(channel, rcu); + kobject_put(&channel->kobj); } static void percpu_channel_enq(void *arg) @@ -513,6 +513,14 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel) newchannel->state = CHANNEL_OPEN_STATE; if (!fnew) { + struct hv_device *dev + = newchannel->primary_channel->device_obj; + + if (vmbus_add_channel_kobj(dev, newchannel)) { + atomic_dec(&vmbus_connection.offer_in_progress); + goto err_free_chan; + } + if (channel->sc_creation_callback != NULL) channel->sc_creation_callback(newchannel); return; diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h index 49569f8fe038..de6f01df9592 100644 --- a/drivers/hv/hyperv_vmbus.h +++ b/drivers/hv/hyperv_vmbus.h @@ -373,6 +373,8 @@ struct hv_device *vmbus_device_create(const uuid_le *type, int vmbus_device_register(struct hv_device *child_device_obj); void vmbus_device_unregister(struct hv_device *device_obj); +int vmbus_add_channel_kobj(struct hv_device *device_obj, + struct vmbus_channel *channel); struct vmbus_channel *relid2channel(u32 relid); diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index a9d49f6f6501..a209527b09f5 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -107,28 +107,30 @@ static void print_alias_name(struct hv_device *hv_dev, char *alias_name) sprintf(&alias_name[i], "%02x", hv_dev->dev_type.b[i/2]); } -static u8 channel_monitor_group(struct vmbus_channel *channel) +static u8 channel_monitor_group(const struct vmbus_channel *channel) { return (u8)channel->offermsg.monitorid / 32; } -static u8 channel_monitor_offset(struct vmbus_channel *channel) +static u8 channel_monitor_offset(const struct vmbus_channel *channel) { return (u8)channel->offermsg.monitorid % 32; } -static u32 channel_pending(struct vmbus_channel *channel, - struct hv_monitor_page *monitor_page) +static u32 channel_pending(const struct vmbus_channel *channel, + const struct hv_monitor_page *monitor_page) { u8 monitor_group = channel_monitor_group(channel); + return monitor_page->trigger_group[monitor_group].pending; } -static u32 channel_latency(struct vmbus_channel *channel, - struct hv_monitor_page *monitor_page) +static u32 channel_latency(const struct vmbus_channel *channel, + const struct hv_monitor_page *monitor_page) { u8 monitor_group = channel_monitor_group(channel); u8 monitor_offset = channel_monitor_offset(channel); + return monitor_page->latency[monitor_group][monitor_offset]; } @@ -1134,6 +1136,145 @@ void vmbus_driver_unregister(struct hv_driver *hv_driver) } EXPORT_SYMBOL_GPL(vmbus_driver_unregister); + +/* + * Called when last reference to channel is gone. + */ +static void vmbus_chan_release(struct kobject *kobj) +{ + struct vmbus_channel *channel + = container_of(kobj, struct vmbus_channel, kobj); + + kfree_rcu(channel, rcu); +} + +struct vmbus_chan_attribute { + struct attribute attr; + ssize_t (*show)(const struct vmbus_channel *chan, char *buf); + ssize_t (*store)(struct vmbus_channel *chan, + const char *buf, size_t count); +}; +#define VMBUS_CHAN_ATTR(_name, _mode, _show, _store) \ + struct vmbus_chan_attribute chan_attr_##_name \ + = __ATTR(_name, _mode, _show, _store) +#define VMBUS_CHAN_ATTR_RW(_name) \ + struct vmbus_chan_attribute chan_attr_##_name = __ATTR_RW(_name) +#define VMBUS_CHAN_ATTR_RO(_name) \ + struct vmbus_chan_attribute chan_attr_##_name = __ATTR_RO(_name) +#define VMBUS_CHAN_ATTR_WO(_name) \ + struct vmbus_chan_attribute chan_attr_##_name = __ATTR_WO(_name) + +static ssize_t vmbus_chan_attr_show(struct kobject *kobj, + struct attribute *attr, char *buf) +{ + const struct vmbus_chan_attribute *attribute + = container_of(attr, struct vmbus_chan_attribute, attr); + const struct vmbus_channel *chan + = container_of(kobj, struct vmbus_channel, kobj); + + if (!attribute->show) + return -EIO; + + return attribute->show(chan, buf); +} + +static const struct sysfs_ops vmbus_chan_sysfs_ops = { + .show = vmbus_chan_attr_show, +}; + +static ssize_t out_mask_show(const struct vmbus_channel *channel, char *buf) +{ + const struct hv_ring_buffer_info *rbi = &channel->outbound; + + return sprintf(buf, "%u\n", rbi->ring_buffer->interrupt_mask); +} +VMBUS_CHAN_ATTR_RO(out_mask); + +static ssize_t in_mask_show(const struct vmbus_channel *channel, char *buf) +{ + const struct hv_ring_buffer_info *rbi = &channel->inbound; + + return sprintf(buf, "%u\n", rbi->ring_buffer->interrupt_mask); +} +VMBUS_CHAN_ATTR_RO(in_mask); + +static ssize_t read_avail_show(const struct vmbus_channel *channel, char *buf) +{ + const struct hv_ring_buffer_info *rbi = &channel->inbound; + + return sprintf(buf, "%u\n", hv_get_bytes_to_read(rbi)); +} +VMBUS_CHAN_ATTR_RO(read_avail); + +static ssize_t write_avail_show(const struct vmbus_channel *channel, char *buf) +{ + const struct hv_ring_buffer_info *rbi = &channel->outbound; + + return sprintf(buf, "%u\n", hv_get_bytes_to_write(rbi)); +} +VMBUS_CHAN_ATTR_RO(write_avail); + +static ssize_t show_target_cpu(const struct vmbus_channel *channel, char *buf) +{ + return sprintf(buf, "%u\n", channel->target_cpu); +} +VMBUS_CHAN_ATTR(cpu, S_IRUGO, show_target_cpu, NULL); + +static ssize_t channel_pending_show(const struct vmbus_channel *channel, + char *buf) +{ + return sprintf(buf, "%d\n", + channel_pending(channel, + vmbus_connection.monitor_pages[1])); +} +VMBUS_CHAN_ATTR(pending, S_IRUGO, channel_pending_show, NULL); + +static ssize_t channel_latency_show(const struct vmbus_channel *channel, + char *buf) +{ + return sprintf(buf, "%d\n", + channel_latency(channel, + vmbus_connection.monitor_pages[1])); +} +VMBUS_CHAN_ATTR(latency, S_IRUGO, channel_latency_show, NULL); + +static struct attribute *vmbus_chan_attrs[] = { + &chan_attr_out_mask.attr, + &chan_attr_in_mask.attr, + &chan_attr_read_avail.attr, + &chan_attr_write_avail.attr, + &chan_attr_cpu.attr, + &chan_attr_pending.attr, + &chan_attr_latency.attr, + NULL +}; + +static struct kobj_type vmbus_chan_ktype = { + .sysfs_ops = &vmbus_chan_sysfs_ops, + .release = vmbus_chan_release, + .default_attrs = vmbus_chan_attrs, +}; + +/* + * vmbus_add_channel_kobj - setup a sub-directory under device/channels + */ +int vmbus_add_channel_kobj(struct hv_device *dev, struct vmbus_channel *channel) +{ + struct kobject *kobj = &channel->kobj; + u32 relid = channel->offermsg.child_relid; + int ret; + + kobj->kset = dev->channels_kset; + ret = kobject_init_and_add(kobj, &vmbus_chan_ktype, NULL, + "%u", relid); + if (ret) + return ret; + + kobject_uevent(kobj, KOBJ_ADD); + + return 0; +} + /* * vmbus_device_create - Creates and registers a new child device * on the vmbus. @@ -1165,7 +1306,8 @@ struct hv_device *vmbus_device_create(const uuid_le *type, */ int vmbus_device_register(struct hv_device *child_device_obj) { - int ret = 0; + struct kobject *kobj = &child_device_obj->device.kobj; + int ret; dev_set_name(&child_device_obj->device, "%pUl", child_device_obj->channel->offermsg.offer.if_instance.b); @@ -1179,13 +1321,32 @@ int vmbus_device_register(struct hv_device *child_device_obj) * binding...which will eventually call vmbus_match() and vmbus_probe() */ ret = device_register(&child_device_obj->device); - - if (ret) + if (ret) { pr_err("Unable to register child device\n"); - else - pr_debug("child device %s registered\n", - dev_name(&child_device_obj->device)); + return ret; + } + + child_device_obj->channels_kset = kset_create_and_add("channels", + NULL, kobj); + if (!child_device_obj->channels_kset) { + ret = -ENOMEM; + goto err_dev_unregister; + } + + ret = vmbus_add_channel_kobj(child_device_obj, + child_device_obj->channel); + if (ret) { + pr_err("Unable to register primary channeln"); + goto err_kset_unregister; + } + + return 0; + +err_kset_unregister: + kset_unregister(child_device_obj->channels_kset); +err_dev_unregister: + device_unregister(&child_device_obj->device); return ret; } diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index c458d7b7ad19..ef16ee039850 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -828,6 +828,11 @@ struct vmbus_channel { */ struct rcu_head rcu; + /* + * For sysfs per-channel properties. + */ + struct kobject kobj; + /* * For performance critical channels (storage, networking * etc,), Hyper-V has a mechanism to enhance the throughput @@ -1089,6 +1094,7 @@ struct hv_device { struct device device; struct vmbus_channel *channel; + struct kset *channels_kset; }; -- cgit v1.2.3 From b35bd0d9f8a8ea17aae40893e18274d191a2d2c5 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Sat, 30 Sep 2017 23:39:05 -0600 Subject: sysctl: remove /proc/sys/vm/nr_pdflush_threads This tunable has been obsolete since 2.6.32, and writes to the file have been failing and complaining in dmesg since then: nr_pdflush_threads exported in /proc is scheduled for removal That was 8 years ago. Remove the file ABI obsolete notice, and the sysfs file. Reviewed-by: Jan Kara Signed-off-by: Jens Axboe --- Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads | 5 ----- kernel/sysctl.c | 5 ----- 2 files changed, 10 deletions(-) delete mode 100644 Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads (limited to 'Documentation') diff --git a/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads b/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads deleted file mode 100644 index b0b0eeb20fe3..000000000000 --- a/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads +++ /dev/null @@ -1,5 +0,0 @@ -What: /proc/sys/vm/nr_pdflush_threads -Date: June 2012 -Contact: Wanpeng Li -Description: Since pdflush is replaced by per-BDI flusher, the interface of old pdflush - exported in /proc/sys/vm/ should be removed. diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 6648fbbb8157..a5dd8d82c253 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -1344,11 +1344,6 @@ static struct ctl_table vm_table[] = { .proc_handler = dirtytime_interval_handler, .extra1 = &zero, }, - { - .procname = "nr_pdflush_threads", - .mode = 0444 /* read-only */, - .proc_handler = pdflush_proc_obsolete, - }, { .procname = "swappiness", .data = &vm_swappiness, -- cgit v1.2.3 From 2a158f888853cb11140532be79883c8faf31c83d Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 5 Oct 2017 11:30:57 +0900 Subject: reset: uniphier: add PXs3 reset data Add basic reset data for Socionext's new SoC PXs3. Signed-off-by: Masahiro Yamada Signed-off-by: Philipp Zabel --- .../devicetree/bindings/reset/uniphier-reset.txt | 3 +++ drivers/reset/reset-uniphier.c | 26 ++++++++++++++++++++++ 2 files changed, 29 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/reset/uniphier-reset.txt b/Documentation/devicetree/bindings/reset/uniphier-reset.txt index 68a6f487c409..93efed629900 100644 --- a/Documentation/devicetree/bindings/reset/uniphier-reset.txt +++ b/Documentation/devicetree/bindings/reset/uniphier-reset.txt @@ -13,6 +13,7 @@ Required properties: "socionext,uniphier-pxs2-reset" - for PXs2/LD6b SoC "socionext,uniphier-ld11-reset" - for LD11 SoC "socionext,uniphier-ld20-reset" - for LD20 SoC + "socionext,uniphier-pxs3-reset" - for PXs3 SoC - #reset-cells: should be 1. Example: @@ -44,6 +45,7 @@ Required properties: "socionext,uniphier-ld11-mio-reset" - for LD11 SoC (MIO) "socionext,uniphier-ld11-sd-reset" - for LD11 SoC (SD) "socionext,uniphier-ld20-sd-reset" - for LD20 SoC + "socionext,uniphier-pxs3-sd-reset" - for PXs3 SoC - #reset-cells: should be 1. Example: @@ -74,6 +76,7 @@ Required properties: "socionext,uniphier-pxs2-peri-reset" - for PXs2/LD6b SoC "socionext,uniphier-ld11-peri-reset" - for LD11 SoC "socionext,uniphier-ld20-peri-reset" - for LD20 SoC + "socionext,uniphier-pxs3-peri-reset" - for PXs3 SoC - #reset-cells: should be 1. Example: diff --git a/drivers/reset/reset-uniphier.c b/drivers/reset/reset-uniphier.c index 6e40f7db4243..e8bb023ff15e 100644 --- a/drivers/reset/reset-uniphier.c +++ b/drivers/reset/reset-uniphier.c @@ -118,6 +118,20 @@ static const struct uniphier_reset_data uniphier_ld20_sys_reset_data[] = { UNIPHIER_RESET_END, }; +static const struct uniphier_reset_data uniphier_pxs3_sys_reset_data[] = { + UNIPHIER_RESETX(2, 0x200c, 0), /* NAND */ + UNIPHIER_RESETX(4, 0x200c, 2), /* eMMC */ + UNIPHIER_RESETX(8, 0x200c, 12), /* STDMAC */ + UNIPHIER_RESETX(12, 0x200c, 4), /* USB30 link (GIO0) */ + UNIPHIER_RESETX(13, 0x200c, 5), /* USB31 link (GIO1) */ + UNIPHIER_RESETX(16, 0x200c, 16), /* USB30-PHY0 */ + UNIPHIER_RESETX(17, 0x200c, 18), /* USB30-PHY1 */ + UNIPHIER_RESETX(18, 0x200c, 20), /* USB30-PHY2 */ + UNIPHIER_RESETX(20, 0x200c, 17), /* USB31-PHY0 */ + UNIPHIER_RESETX(21, 0x200c, 19), /* USB31-PHY1 */ + UNIPHIER_RESET_END, +}; + /* Media I/O reset data */ #define UNIPHIER_MIO_RESET_SD(id, ch) \ UNIPHIER_RESETX((id), 0x110 + 0x200 * (ch), 0) @@ -363,6 +377,10 @@ static const struct of_device_id uniphier_reset_match[] = { .compatible = "socionext,uniphier-ld20-reset", .data = uniphier_ld20_sys_reset_data, }, + { + .compatible = "socionext,uniphier-pxs3-reset", + .data = uniphier_pxs3_sys_reset_data, + }, /* Media I/O reset, SD reset */ { .compatible = "socionext,uniphier-ld4-mio-reset", @@ -396,6 +414,10 @@ static const struct of_device_id uniphier_reset_match[] = { .compatible = "socionext,uniphier-ld20-sd-reset", .data = uniphier_pro5_sd_reset_data, }, + { + .compatible = "socionext,uniphier-pxs3-sd-reset", + .data = uniphier_pro5_sd_reset_data, + }, /* Peripheral reset */ { .compatible = "socionext,uniphier-ld4-peri-reset", @@ -425,6 +447,10 @@ static const struct of_device_id uniphier_reset_match[] = { .compatible = "socionext,uniphier-ld20-peri-reset", .data = uniphier_pro4_peri_reset_data, }, + { + .compatible = "socionext,uniphier-pxs3-peri-reset", + .data = uniphier_pro4_peri_reset_data, + }, /* Analog signal amplifiers reset */ { .compatible = "socionext,uniphier-ld11-adamv-reset", -- cgit v1.2.3 From 4750bc78efdb126ddc40f1b34dbae7ce319344cb Mon Sep 17 00:00:00 2001 From: "Thang Q. Nguyen" Date: Thu, 5 Oct 2017 11:21:37 +0300 Subject: usb: host: xhci support option to disable the xHCI USB2 HW LPM XHCI specification 1.1 does not require xHCI-compliant controllers to always enable hardware USB2 LPM. However, the current xHCI driver always enable it when seeing HLC=1. This patch supports an option for users to control disabling USB2 Hardware LPM via DT/ACPI attribute. This option is needed in case user would like to disable this feature. For example, their xHCI controller has its USB2 HW LPM broken. Signed-off-by: Tung Nguyen Signed-off-by: Thang Q. Nguyen Acked-by: Rob Herring Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/usb/usb-xhci.txt | 1 + drivers/usb/host/xhci-plat.c | 3 +++ drivers/usb/host/xhci.c | 2 +- drivers/usb/host/xhci.h | 1 + 4 files changed, 6 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt index 2d80b60eeabe..ae6e484a8d7c 100644 --- a/Documentation/devicetree/bindings/usb/usb-xhci.txt +++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt @@ -26,6 +26,7 @@ Required properties: Optional properties: - clocks: reference to a clock + - usb2-lpm-disable: indicate if we don't want to enable USB2 HW LPM - usb3-lpm-capable: determines if platform is USB3 LPM capable - quirk-broken-port-ped: set if the controller has broken port disable mechanism diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 163bafde709f..d0625faee8f7 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -259,6 +259,9 @@ static int xhci_plat_probe(struct platform_device *pdev) goto disable_clk; } + if (device_property_read_bool(sysdev, "usb2-lpm-disable")) + xhci->quirks |= XHCI_HW_LPM_DISABLE; + if (device_property_read_bool(sysdev, "usb3-lpm-capable")) xhci->quirks |= XHCI_LPM_SUPPORT; diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index b2ff1ff1a02f..3a8e75f6898f 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -4087,7 +4087,7 @@ static int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, xhci_dbg(xhci, "%s port %d USB2 hardware LPM\n", enable ? "enable" : "disable", port_num + 1); - if (enable) { + if (enable && !(xhci->quirks & XHCI_HW_LPM_DISABLE)) { /* Host supports BESL timeout instead of HIRD */ if (udev->usb2_hw_lpm_besl_capable) { /* if device doesn't have a preferred BESL value use a diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 2abaa4d6d39d..dc22392711e3 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1828,6 +1828,7 @@ struct xhci_hcd { #define XHCI_LIMIT_ENDPOINT_INTERVAL_7 (1 << 26) #define XHCI_U2_DISABLE_WAKE (1 << 27) #define XHCI_ASMEDIA_MODIFY_FLOWCONTROL (1 << 28) +#define XHCI_HW_LPM_DISABLE (1 << 29) unsigned int num_active_eps; unsigned int limit_active_eps; -- cgit v1.2.3 From 69146d05ef96d91577b5e8d804b50d47b6b014f9 Mon Sep 17 00:00:00 2001 From: Dmitry Dunaev Date: Tue, 26 Sep 2017 17:49:37 +0300 Subject: Add Tecon Microprocessor Technologies, LLC vendor prefix Signed-off-by: Dmitry Dunaev Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 9d46f99cc144..5268738c3e7c 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -341,6 +341,7 @@ thine THine Electronics, Inc. ti Texas Instruments tianma Tianma Micro-electronics Co., Ltd. tlm Trusted Logic Mobility +tmt Tecon Microprocessor Technologies, LLC. topeet Topeet toradex Toradex AG toshiba Toshiba Corporation -- cgit v1.2.3 From af37bed303e2b8fbdbe62e8c2c60900eb62a7fea Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 8 Sep 2017 14:45:02 +0200 Subject: PCI: v3: Update the device tree bindings The bindings for the V3 Semiconductor PCI bridge are a tad bit outdated and predates the more formal format we have adopted for the bindings. Update them a bit so it is easier to read, and add the Integrator AP- specific compatible so we can detect that we are running on that specific platform. Add a second register bank for the configuration memory area. The device tree specs do specify a memory range for configuration space but it is not applicable to custom accessors like this. Instead follow the pattern from the Versatile PCI adapter and simply add a second register bank for this memory. Signed-off-by: Linus Walleij Signed-off-by: Bjorn Helgaas Acked-by: Rob Herring Cc: Marc Gonzalez --- .../devicetree/bindings/pci/v3-v360epc-pci.txt | 75 ++++++++++++++++++++-- 1 file changed, 68 insertions(+), 7 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pci/v3-v360epc-pci.txt b/Documentation/devicetree/bindings/pci/v3-v360epc-pci.txt index 30b364e504ba..11063293f761 100644 --- a/Documentation/devicetree/bindings/pci/v3-v360epc-pci.txt +++ b/Documentation/devicetree/bindings/pci/v3-v360epc-pci.txt @@ -2,14 +2,75 @@ V3 Semiconductor V360 EPC PCI bridge This bridge is found in the ARM Integrator/AP (Application Platform) -Integrator-specific notes: +Required properties: +- compatible: should be one of: + "v3,v360epc-pci" + "arm,integrator-ap-pci", "v3,v360epc-pci" +- reg: should contain two register areas: + first the base address of the V3 host bridge controller, 64KB + second the configuration area register space, 16MB +- interrupts: should contain a reference to the V3 error interrupt + as routed on the system. +- bus-range: see pci.txt +- ranges: this follows the standard PCI bindings in the IEEE Std + 1275-1994 (see pci.txt) with the following restriction: + - The non-prefetchable and prefetchable memory windows must + each be exactly 256MB (0x10000000) in size. + - The prefetchable memory window must be immediately adjacent + to the non-prefetcable memory window +- dma-ranges: three ranges for the inbound memory region. The ranges must + be aligned to a 1MB boundary, and may be 1MB, 2MB, 4MB, 8MB, 16MB, 32MB, + 64MB, 128MB, 256MB, 512MB, 1GB or 2GB in size. The memory should be marked + as pre-fetchable. Two ranges are supported by the hardware. -- syscon: should contain a link to the syscon device node (since +Integrator-specific required properties: +- syscon: should contain a link to the syscon device node, since on the Integrator, some registers in the syscon are required to - operate the V3). + operate the V3 host bridge. -V360 EPC specific notes: +Example: -- reg: should contain the base address of the V3 adapter. -- interrupts: should contain a reference to the V3 error interrupt - as routed on the system. +pci: pciv3@62000000 { + compatible = "arm,integrator-ap-pci", "v3,v360epc-pci"; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = <0x62000000 0x10000>, <0x61000000 0x01000000>; + interrupt-parent = <&pic>; + interrupts = <17>; /* Bus error IRQ */ + clocks = <&pciclk>; + bus-range = <0x00 0xff>; + ranges = 0x01000000 0 0x00000000 /* I/O space @00000000 */ + 0x60000000 0 0x01000000 /* 16 MiB @ LB 60000000 */ + 0x02000000 0 0x40000000 /* non-prefectable memory @40000000 */ + 0x40000000 0 0x10000000 /* 256 MiB @ LB 40000000 1:1 */ + 0x42000000 0 0x50000000 /* prefetchable memory @50000000 */ + 0x50000000 0 0x10000000>; /* 256 MiB @ LB 50000000 1:1 */ + dma-ranges = <0x02000000 0 0x20000000 /* EBI memory space */ + 0x20000000 0 0x20000000 /* 512 MB @ LB 20000000 1:1 */ + 0x02000000 0 0x80000000 /* Core module alias memory */ + 0x80000000 0 0x40000000>; /* 1GB @ LB 80000000 */ + interrupt-map-mask = <0xf800 0 0 0x7>; + interrupt-map = < + /* IDSEL 9 */ + 0x4800 0 0 1 &pic 13 /* INT A on slot 9 is irq 13 */ + 0x4800 0 0 2 &pic 14 /* INT B on slot 9 is irq 14 */ + 0x4800 0 0 3 &pic 15 /* INT C on slot 9 is irq 15 */ + 0x4800 0 0 4 &pic 16 /* INT D on slot 9 is irq 16 */ + /* IDSEL 10 */ + 0x5000 0 0 1 &pic 14 /* INT A on slot 10 is irq 14 */ + 0x5000 0 0 2 &pic 15 /* INT B on slot 10 is irq 15 */ + 0x5000 0 0 3 &pic 16 /* INT C on slot 10 is irq 16 */ + 0x5000 0 0 4 &pic 13 /* INT D on slot 10 is irq 13 */ + /* IDSEL 11 */ + 0x5800 0 0 1 &pic 15 /* INT A on slot 11 is irq 15 */ + 0x5800 0 0 2 &pic 16 /* INT B on slot 11 is irq 16 */ + 0x5800 0 0 3 &pic 13 /* INT C on slot 11 is irq 13 */ + 0x5800 0 0 4 &pic 14 /* INT D on slot 11 is irq 14 */ + /* IDSEL 12 */ + 0x6000 0 0 1 &pic 16 /* INT A on slot 12 is irq 16 */ + 0x6000 0 0 2 &pic 13 /* INT B on slot 12 is irq 13 */ + 0x6000 0 0 3 &pic 14 /* INT C on slot 12 is irq 14 */ + 0x6000 0 0 4 &pic 15 /* INT D on slot 12 is irq 15 */ + >; +}; -- cgit v1.2.3 From a38b9267995402b89916017872a6f3ba405bcb96 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 27 Sep 2017 16:03:40 +0200 Subject: dt-bindings: trivial: Add RTCs Add remaining trivial RTC bindings. Signed-off-by: Alexandre Belloni Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/trivial-devices.txt | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt index af284fbd4d23..e3992013133e 100644 --- a/Documentation/devicetree/bindings/trivial-devices.txt +++ b/Documentation/devicetree/bindings/trivial-devices.txt @@ -41,6 +41,7 @@ dallas,ds1338 I2C RTC with 56-Byte NV RAM dallas,ds1340 I2C RTC with Trickle Charger dallas,ds1374 I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output dallas,ds1631 High-Precision Digital Thermometer +dallas,ds1672 Dallas DS1672 Real-time Clock dallas,ds1682 Total-Elapsed-Time Recorder with Alarm dallas,ds1775 Tiny Digital Thermometer and Thermostat dallas,ds3232 Extremely Accurate I²C RTC with Integrated Crystal and SRAM @@ -56,6 +57,7 @@ domintech,dmard10 DMARD10: 3-axis Accelerometer epson,rx8010 I2C-BUS INTERFACE REAL TIME CLOCK MODULE epson,rx8025 High-Stability. I2C-Bus INTERFACE REAL TIME CLOCK MODULE epson,rx8581 I2C-BUS INTERFACE REAL TIME CLOCK MODULE +emmicro,em3027 EM Microelectronic EM3027 Real-time Clock fsl,mag3110 MAG3110: Xtrinsic High Accuracy, 3D Magnetometer fsl,mc13892 MC13892: Power Management Integrated Circuit (PMIC) for i.MX35/51 fsl,mma7660 MMA7660FC: 3-Axis Orientation/Motion Detection Sensor @@ -67,6 +69,8 @@ gmt,g751 G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire In infineon,slb9635tt Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz) infineon,slb9645tt Infineon SLB9645 I2C TPM (new protocol, max 400khz) isil,isl1208 Intersil ISL1208 Low Power RTC with Battery Backed SRAM +isil,isl1218 Intersil ISL1218 Low Power RTC with Battery Backed SRAM +isil,isl12022 Intersil ISL12022 Real-time Clock isil,isl29028 Intersil ISL29028 Ambient Light and Proximity Sensor isil,isl29030 Intersil ISL29030 Ambient Light and Proximity Sensor maxim,ds1050 5 Bit Programmable, Pulse-Width Modulator @@ -155,6 +159,7 @@ nxp,pca9556 Octal SMBus and I2C registered interface nxp,pca9557 8-bit I2C-bus and SMBus I/O port with reset nxp,pcf2127 Real-time clock nxp,pcf2129 Real-time clock +nxp,pcf8523 Real-time Clock nxp,pcf8563 Real-time clock/calendar nxp,pcf85063 Tiny Real-Time Clock oki,ml86v7667 OKI ML86V7667 video decoder -- cgit v1.2.3 From b766f10f7b1b416460c05df57345bba74cd5911d Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 27 Sep 2017 16:03:41 +0200 Subject: dt-bindings: rtc: add stericsson,coh901331 bindings Add device tree bindings for the ST-Ericsson COH 901 331 Real Time Clock Signed-off-by: Alexandre Belloni Reviewed-by: Linus Walleij Signed-off-by: Alexandre Belloni Signed-off-by: Rob Herring --- .../devicetree/bindings/rtc/stericsson,coh901331.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/stericsson,coh901331.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/rtc/stericsson,coh901331.txt b/Documentation/devicetree/bindings/rtc/stericsson,coh901331.txt new file mode 100644 index 000000000000..3ebeb311335f --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/stericsson,coh901331.txt @@ -0,0 +1,17 @@ +ST-Ericsson COH 901 331 Real Time Clock + +Required properties: +- compatible: must be "stericsson,coh901331" +- reg: address range of rtc register set. +- interrupt-parent: phandle for the interrupt controller. +- interrupts: rtc alarm interrupt. +- clocks: phandle to the rtc clock source + +Example: + rtc: rtc@c0017000 { + compatible = "stericsson,coh901331"; + reg = <0xc0017000 0x1000>; + interrupt-parent = <&vicb>; + interrupts = <10>; + clocks = <&rtc_clk>; + }; -- cgit v1.2.3 From 0fc52ca54aa1f6ad8a38efea2f4b072150280008 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 27 Sep 2017 16:03:42 +0200 Subject: dt-bindings: rtc: Add sirf,prima2-sysrtc bindings Add device tree bindings for the SiRFSoC Real Time Clock. Signed-off-by: Alexandre Belloni Signed-off-by: Rob Herring --- .../devicetree/bindings/rtc/sirf,prima2-sysrtc.txt | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/sirf,prima2-sysrtc.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/rtc/sirf,prima2-sysrtc.txt b/Documentation/devicetree/bindings/rtc/sirf,prima2-sysrtc.txt new file mode 100644 index 000000000000..58885b55da21 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/sirf,prima2-sysrtc.txt @@ -0,0 +1,13 @@ +SiRFSoC Real Time Clock + +Required properties: +- compatible: must be "sirf,prima2-sysrtc" +- reg: address range of rtc register set. +- interrupts: rtc alarm interrupts. + +Example: + rtc@2000 { + compatible = "sirf,prima2-sysrtc"; + reg = <0x2000 0x1000>; + interrupts = <52 53 54>; + }; -- cgit v1.2.3 From 13a5595892ca3cf99625085aaee4c2cb2e6dd5a5 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 27 Sep 2017 16:03:43 +0200 Subject: dt-bindings: rtc: DS1307 and compatibles are not trivial Document optional properties for ds1307 and compatible RTCs Signed-off-by: Alexandre Belloni Signed-off-by: Rob Herring --- .../devicetree/bindings/rtc/rtc-ds1307.txt | 36 ++++++++++++++++++++++ .../devicetree/bindings/trivial-devices.txt | 6 ---- 2 files changed, 36 insertions(+), 6 deletions(-) create mode 100644 Documentation/devicetree/bindings/rtc/rtc-ds1307.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt new file mode 100644 index 000000000000..c010f18a85a0 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt @@ -0,0 +1,36 @@ +Dallas DS1307 and compatible RTC + +Required properties: +- compatible: should be one of: + "dallas,ds1307", + "dallas,ds1308", + "dallas,ds1337", + "dallas,ds1338", + "dallas,ds1339", + "dallas,ds1388", + "dallas,ds1340", + "dallas,ds1341", + "maxim,ds3231", + "st,m41t0", + "st,m41t00", + "microchip,mcp7940x", + "microchip,mcp7941x", + "pericom,pt7c4338", + "epson,rx8025", + "isil,isl12057" +- reg: I2C bus address of the device + +Optional properties: +- interrupt-parent: phandle for the interrupt controller. +- interrupts: rtc alarm interrupt. +- clock-output-names: From common clock binding to override the default output + clock name +- wakeup-source: Enables wake up of host system on alarm + +Example: + rtc1: ds1339@68 { + compatible = "dallas,ds1339"; + reg = <0x68>; + interrupt-parent = <&gpio4>; + interrupts = <20 0>; + }; diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt index e3992013133e..4353151367a1 100644 --- a/Documentation/devicetree/bindings/trivial-devices.txt +++ b/Documentation/devicetree/bindings/trivial-devices.txt @@ -36,9 +36,6 @@ atmel,at97sc3204t i2c trusted platform module (TPM) capella,cm32181 CM32181: Ambient Light Sensor capella,cm3232 CM3232: Ambient Light Sensor cirrus,cs42l51 Cirrus Logic CS42L51 audio codec -dallas,ds1307 64 x 8, Serial, I2C Real-Time Clock -dallas,ds1338 I2C RTC with 56-Byte NV RAM -dallas,ds1340 I2C RTC with Trickle Charger dallas,ds1374 I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output dallas,ds1631 High-Precision Digital Thermometer dallas,ds1672 Dallas DS1672 Real-time Clock @@ -55,7 +52,6 @@ dlg,da9063 DA9063: system PMIC for quad-core application processors domintech,dmard09 DMARD09: 3-axis Accelerometer domintech,dmard10 DMARD10: 3-axis Accelerometer epson,rx8010 I2C-BUS INTERFACE REAL TIME CLOCK MODULE -epson,rx8025 High-Stability. I2C-Bus INTERFACE REAL TIME CLOCK MODULE epson,rx8581 I2C-BUS INTERFACE REAL TIME CLOCK MODULE emmicro,em3027 EM Microelectronic EM3027 Real-time Clock fsl,mag3110 MAG3110: Xtrinsic High Accuracy, 3D Magnetometer @@ -179,8 +175,6 @@ sii,s35390a 2-wire CMOS real-time clock silabs,si7020 Relative Humidity and Temperature Sensors skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st,24c256 i2c serial eeprom (24cxx) -st,m41t0 Serial real-time clock (RTC) -st,m41t00 Serial real-time clock (RTC) st,m41t62 Serial real-time clock (RTC) with alarm st,m41t80 M41T80 - SERIAL ACCESS RTC WITH ALARMS taos,tsl2550 Ambient Light Sensor with SMBUS/Two Wire Serial Interface -- cgit v1.2.3 From 5015391d9d6e28c85fd98d663703497dd1ec7917 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 27 Sep 2017 16:03:44 +0200 Subject: dt-bindings: rtc: Add bindings for m41t80 and compatibles The ST M41T80 family of RTC are not trivial devices, document them. Signed-off-by: Alexandre Belloni Signed-off-by: Rob Herring --- .../devicetree/bindings/rtc/rtc-m41t80.txt | 31 ++++++++++++++++++++++ .../devicetree/bindings/trivial-devices.txt | 2 -- 2 files changed, 31 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/rtc/rtc-m41t80.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/rtc/rtc-m41t80.txt b/Documentation/devicetree/bindings/rtc/rtc-m41t80.txt new file mode 100644 index 000000000000..717d93860af1 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/rtc-m41t80.txt @@ -0,0 +1,31 @@ +ST M41T80 family of RTC and compatible + +Required properties: +- compatible: should be one of: + "st,m41t62", + "st,m41t65", + "st,m41t80", + "st,m41t81", + "st,m41t81s", + "st,m41t82", + "st,m41t83", + "st,m41t84", + "st,m41t85", + "st,m41t87", + "microcrystal,rv4162", +- reg: I2C bus address of the device + +Optional properties: +- interrupt-parent: phandle for the interrupt controller. +- interrupts: rtc alarm interrupt. +- clock-output-names: From common clock binding to override the default output + clock name +- wakeup-source: Enables wake up of host system on alarm + +Example: + rtc@68 { + compatible = "st,m41t80"; + reg = <0x68>; + interrupt-parent = <&UIC0>; + interrupts = <0x9 0x8>; + }; diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt index 4353151367a1..4b169caab0eb 100644 --- a/Documentation/devicetree/bindings/trivial-devices.txt +++ b/Documentation/devicetree/bindings/trivial-devices.txt @@ -175,8 +175,6 @@ sii,s35390a 2-wire CMOS real-time clock silabs,si7020 Relative Humidity and Temperature Sensors skyworks,sky81452 Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply st,24c256 i2c serial eeprom (24cxx) -st,m41t62 Serial real-time clock (RTC) with alarm -st,m41t80 M41T80 - SERIAL ACCESS RTC WITH ALARMS taos,tsl2550 Ambient Light Sensor with SMBUS/Two Wire Serial Interface ti,ads7828 8-Channels, 12-bit ADC ti,ads7830 8-Channels, 8-bit ADC -- cgit v1.2.3 From 1620c624305f3773563996757a87eecf44cecfec Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 27 Sep 2017 16:03:45 +0200 Subject: dt-bindings: rtc: merge ds1339 in ds1307 documentation Now that there is documentation for the ds1307 and compatible RTCs, merge the ds1339 documentation in it. Signed-off-by: Alexandre Belloni Signed-off-by: Rob Herring --- .../devicetree/bindings/rtc/dallas,ds1339.txt | 18 ------------------ Documentation/devicetree/bindings/rtc/rtc-ds1307.txt | 8 ++++++++ 2 files changed, 8 insertions(+), 18 deletions(-) delete mode 100644 Documentation/devicetree/bindings/rtc/dallas,ds1339.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/rtc/dallas,ds1339.txt b/Documentation/devicetree/bindings/rtc/dallas,ds1339.txt deleted file mode 100644 index 916f57601a8f..000000000000 --- a/Documentation/devicetree/bindings/rtc/dallas,ds1339.txt +++ /dev/null @@ -1,18 +0,0 @@ -* Dallas DS1339 I2C Serial Real-Time Clock - -Required properties: -- compatible: Should contain "dallas,ds1339". -- reg: I2C address for chip - -Optional properties: -- trickle-resistor-ohms : Selected resistor for trickle charger - Values usable for ds1339 are 250, 2000, 4000 - Should be given if trickle charger should be enabled -- trickle-diode-disable : Do not use internal trickle charger diode - Should be given if internal trickle charger diode should be disabled -Example: - ds1339: rtc@68 { - compatible = "dallas,ds1339"; - trickle-resistor-ohms = <250>; - reg = <0x68>; - }; diff --git a/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt index c010f18a85a0..d28d6e7f6ae8 100644 --- a/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt +++ b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt @@ -26,6 +26,13 @@ Optional properties: - clock-output-names: From common clock binding to override the default output clock name - wakeup-source: Enables wake up of host system on alarm +- trickle-resistor-ohms : ds1339, ds1340 and ds 1388 only + Selected resistor for trickle charger + Possible values are 250, 2000, 4000 + Should be given if trickle charger should be enabled +- trickle-diode-disable : ds1339, ds1340 and ds 1388 only + Do not use internal trickle charger diode + Should be given if internal trickle charger diode should be disabled Example: rtc1: ds1339@68 { @@ -33,4 +40,5 @@ Example: reg = <0x68>; interrupt-parent = <&gpio4>; interrupts = <20 0>; + trickle-resistor-ohms = <250>; }; -- cgit v1.2.3 From 28517c02e1dd8fef7a0eab5e9f18013a0e297aba Mon Sep 17 00:00:00 2001 From: Loic Poulain Date: Fri, 8 Sep 2017 15:57:53 +0200 Subject: dt-bindings: net: document Bluetooth bindings in one place In the same way as Ethernet, gather the Bluetooth related bindings in one file. Introduce the bluetooth-bd-address property which can be used to store the assigned BD address. Signed-off-by: Loic Poulain Signed-off-by: Marcel Holtmann --- Documentation/devicetree/bindings/net/bluetooth.txt | 5 +++++ 1 file changed, 5 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/bluetooth.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/bluetooth.txt b/Documentation/devicetree/bindings/net/bluetooth.txt new file mode 100644 index 000000000000..94797df751b8 --- /dev/null +++ b/Documentation/devicetree/bindings/net/bluetooth.txt @@ -0,0 +1,5 @@ +The following properties are common to the Bluetooth controllers: + +- local-bd-address: array of 6 bytes, specifies the BD address that was + uniquely assigned to the Bluetooth device, formatted with least significant + byte first (little-endian). -- cgit v1.2.3 From e7868a2f71bd9f81494f0c90a64e4dd454248850 Mon Sep 17 00:00:00 2001 From: Loic Poulain Date: Fri, 8 Sep 2017 15:57:54 +0200 Subject: dt-bindings: soc: qcom: Add local-bd-address property to WCNSS-BT Add optional local-bd-address property which is a 6-byte array storing the assigned BD address. Since having a unique BD address is critical, a per-device property value should be allocated. This property is usually added by the boot loader which has access to the provisioned data. Signed-off-by: Loic Poulain Signed-off-by: Marcel Holtmann --- Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.txt | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.txt index 4ea39e9186a7..042a2e4159bd 100644 --- a/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.txt +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.txt @@ -37,6 +37,11 @@ The following properties are defined to the bluetooth node: Definition: must be: "qcom,wcnss-bt" +- local-bd-address: + Usage: optional + Value type: + Definition: see Documentation/devicetree/bindings/net/bluetooth.txt + == WiFi The following properties are defined to the WiFi node: @@ -91,6 +96,9 @@ smd { bt { compatible = "qcom,wcnss-bt"; + + /* BD address 00:11:22:33:44:55 */ + local-bd-address = [ 55 44 33 22 11 00 ]; }; wlan { -- cgit v1.2.3 From aee2828ccb3444ad1551e8528a868ab49ef447de Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Sat, 23 Sep 2017 16:14:01 +0200 Subject: dt-bindings: Amlogic: add documentation for the SoC info register areas There are three register areas which contain information about the SoC version and revision: - the assist registers contain the SoC's "major version" which encodes the SoC generation and part number. this is available on Meson6, Meson8 and Meson8b SoCs. - the bootrom register contains at least the SoCs "misc version". this is avilable on Meson6, Meson8 and Meson8b - the analog top registers contain information about the SoC revision. this is only available on Meson8 and Meson8b Not much else is currently known about these registers. Signed-off-by: Martin Blumenstingl Acked-by: Rob Herring Signed-off-by: Kevin Hilman --- .../devicetree/bindings/arm/amlogic/analog-top.txt | 20 ++++++++++++++++++++ .../devicetree/bindings/arm/amlogic/assist.txt | 17 +++++++++++++++++ .../devicetree/bindings/arm/amlogic/bootrom.txt | 17 +++++++++++++++++ 3 files changed, 54 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/amlogic/analog-top.txt create mode 100644 Documentation/devicetree/bindings/arm/amlogic/assist.txt create mode 100644 Documentation/devicetree/bindings/arm/amlogic/bootrom.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt b/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt new file mode 100644 index 000000000000..101dc21014ec --- /dev/null +++ b/Documentation/devicetree/bindings/arm/amlogic/analog-top.txt @@ -0,0 +1,20 @@ +Amlogic Meson8 and Meson8b "analog top" registers: +-------------------------------------------------- + +The analog top registers contain information about the so-called +"metal revision" (which encodes the "minor version") of the SoC. + +Required properties: +- reg: the register range of the analog top registers +- compatible: depending on the SoC this should be one of: + - "amlogic,meson8-analog-top" + - "amlogic,meson8b-analog-top" + along with "syscon" + + +Example: + + analog_top: analog-top@81a8 { + compatible = "amlogic,meson8-analog-top", "syscon"; + reg = <0x81a8 0x14>; + }; diff --git a/Documentation/devicetree/bindings/arm/amlogic/assist.txt b/Documentation/devicetree/bindings/arm/amlogic/assist.txt new file mode 100644 index 000000000000..7656812b67b9 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/amlogic/assist.txt @@ -0,0 +1,17 @@ +Amlogic Meson6/Meson8/Meson8b assist registers: +----------------------------------------------- + +The assist registers contain basic information about the SoC, +for example the encoded SoC part number. + +Required properties: +- reg: the register range of the assist registers +- compatible: should be "amlogic,meson-mx-assist" along with "syscon" + + +Example: + + assist: assist@7c00 { + compatible = "amlogic,meson-mx-assist", "syscon"; + reg = <0x7c00 0x200>; + }; diff --git a/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt b/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt new file mode 100644 index 000000000000..407e27f230ab --- /dev/null +++ b/Documentation/devicetree/bindings/arm/amlogic/bootrom.txt @@ -0,0 +1,17 @@ +Amlogic Meson6/Meson8/Meson8b bootrom: +-------------------------------------- + +The bootrom register area can be used to access SoC specific +information, such as the "misc version". + +Required properties: +- reg: the register range of the bootrom registers +- compatible: should be "amlogic,meson-mx-bootrom" along with "syscon" + + +Example: + + bootrom: bootrom@d9040000 { + compatible = "amlogic,meson-mx-bootrom", "syscon"; + reg = <0xd9040000 0x10000>; + }; -- cgit v1.2.3 From b330213d98c357859b686b77ad0db9e98fe73763 Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Mon, 25 Sep 2017 16:53:50 +0200 Subject: Documentation: devicetree: add pxa3xx compatible and syscon property Document the new pxa3xx_nand driver compatible string for A7k/A8k SoCs that need to access system controller registers in order to enable the NAND controller through the use of a phandle pointed to by the 'marvell,system-controller' property. Signed-off-by: Miquel Raynal Signed-off-by: Boris Brezillon --- Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt b/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt index d9b655f11048..d4ee4da58463 100644 --- a/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt +++ b/Documentation/devicetree/bindings/mtd/pxa3xx-nand.txt @@ -5,9 +5,13 @@ Required properties: - compatible: Should be set to one of the following: marvell,pxa3xx-nand marvell,armada370-nand + marvell,armada-8k-nand - reg: The register base for the controller - interrupts: The interrupt to map - #address-cells: Set to <1> if the node includes partitions + - marvell,system-controller: Set to retrieve the syscon node that handles + NAND controller related registers (only required + with marvell,armada-8k-nand compatible). Optional properties: -- cgit v1.2.3 From 13277782dd4bcef71341a1016bee1d09f8f95ae0 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Fri, 6 Oct 2017 11:10:38 +0200 Subject: Documentation: add Kernel Driver Statement to the kernel Way back in 2008 we didn't have "robust" in-kernel documentation system, so the idea of putting something like the kernel driver statement in the kernel tree wasn't even imagined. But now that has changed, so add the old document to the kernel source itself to allow for us to properly reference it in one canonical place (as the LF wiki keeps moving things around.) This also will allow people to add their names to it, as I seem to have lost the ability to do that by not knowing how to edit things on the original document. Signed-off-by: Greg Kroah-Hartman Acked-by: Mauro Carvalho Chehab Signed-off-by: Jonathan Corbet --- Documentation/process/index.rst | 1 + Documentation/process/kernel-driver-statement.rst | 199 ++++++++++++++++++++++ 2 files changed, 200 insertions(+) create mode 100644 Documentation/process/kernel-driver-statement.rst (limited to 'Documentation') diff --git a/Documentation/process/index.rst b/Documentation/process/index.rst index 82fc399fcd33..68454319f006 100644 --- a/Documentation/process/index.rst +++ b/Documentation/process/index.rst @@ -25,6 +25,7 @@ Below are the essential guides that every developer should read. submitting-patches coding-style email-clients + kernel-driver-statement Other guides to the community that are of interest to most developers are: diff --git a/Documentation/process/kernel-driver-statement.rst b/Documentation/process/kernel-driver-statement.rst new file mode 100644 index 000000000000..60d9d868f300 --- /dev/null +++ b/Documentation/process/kernel-driver-statement.rst @@ -0,0 +1,199 @@ +Kernel Driver Statement +----------------------- + +Position Statement on Linux Kernel Modules +========================================== + + +We, the undersigned Linux kernel developers, consider any closed-source +Linux kernel module or driver to be harmful and undesirable. We have +repeatedly found them to be detrimental to Linux users, businesses, and +the greater Linux ecosystem. Such modules negate the openness, +stability, flexibility, and maintainability of the Linux development +model and shut their users off from the expertise of the Linux +community. Vendors that provide closed-source kernel modules force their +customers to give up key Linux advantages or choose new vendors. +Therefore, in order to take full advantage of the cost savings and +shared support benefits open source has to offer, we urge vendors to +adopt a policy of supporting their customers on Linux with open-source +kernel code. + +We speak only for ourselves, and not for any company we might work for +today, have in the past, or will in the future. + + - Dave Airlie + - Nick Andrew + - Jens Axboe + - Ralf Baechle + - Felipe Balbi + - Ohad Ben-Cohen + - Muli Ben-Yehuda + - Jiri Benc + - Arnd Bergmann + - Thomas Bogendoerfer + - Vitaly Bordug + - James Bottomley + - Josh Boyer + - Neil Brown + - Mark Brown + - David Brownell + - Michael Buesch + - Franck Bui-Huu + - Adrian Bunk + - François Cami + - Ralph Campbell + - Luiz Fernando N. Capitulino + - Mauro Carvalho Chehab + - Denis Cheng + - Jonathan Corbet + - Glauber Costa + - Alan Cox + - Magnus Damm + - Ahmed S. Darwish + - Robert P. J. Day + - Hans de Goede + - Arnaldo Carvalho de Melo + - Helge Deller + - Jean Delvare + - Mathieu Desnoyers + - Sven-Thorsten Dietrich + - Alexey Dobriyan + - Daniel Drake + - Alex Dubov + - Randy Dunlap + - Michael Ellerman + - Pekka Enberg + - Jan Engelhardt + - Mark Fasheh + - J. Bruce Fields + - Larry Finger + - Jeremy Fitzhardinge + - Mike Frysinger + - Kumar Gala + - Robin Getz + - Liam Girdwood + - Jan-Benedict Glaw + - Thomas Gleixner + - Brice Goglin + - Cyrill Gorcunov + - Andy Gospodarek + - Thomas Graf + - Krzysztof Halasa + - Harvey Harrison + - Stephen Hemminger + - Michael Hennerich + - Tejun Heo + - Benjamin Herrenschmidt + - Kristian Høgsberg + - Henrique de Moraes Holschuh + - Marcel Holtmann + - Mike Isely + - Takashi Iwai + - Olof Johansson + - Dave Jones + - Jesper Juhl + - Matthias Kaehlcke + - Kenji Kaneshige + - Jan Kara + - Jeremy Kerr + - Russell King + - Olaf Kirch + - Roel Kluin + - Hans-Jürgen Koch + - Auke Kok + - Peter Korsgaard + - Jiri Kosina + - Mariusz Kozlowski + - Greg Kroah-Hartman + - Michael Krufky + - Aneesh Kumar + - Clemens Ladisch + - Christoph Lameter + - Gunnar Larisch + - Anders Larsen + - Grant Likely + - John W. Linville + - Yinghai Lu + - Tony Luck + - Pavel Machek + - Matt Mackall + - Paul Mackerras + - Roland McGrath + - Patrick McHardy + - Kyle McMartin + - Paul Menage + - Thierry Merle + - Eric Miao + - Akinobu Mita + - Ingo Molnar + - James Morris + - Andrew Morton + - Paul Mundt + - Oleg Nesterov + - Luca Olivetti + - S.Çağlar Onur + - Pierre Ossman + - Keith Owens + - Venkatesh Pallipadi + - Nick Piggin + - Nicolas Pitre + - Evgeniy Polyakov + - Richard Purdie + - Mike Rapoport + - Sam Ravnborg + - Gerrit Renker + - Stefan Richter + - David Rientjes + - Luis R. Rodriguez + - Stefan Roese + - Francois Romieu + - Rami Rosen + - Stephen Rothwell + - Maciej W. Rozycki + - Mark Salyzyn + - Yoshinori Sato + - Deepak Saxena + - Holger Schurig + - Amit Shah + - Yoshihiro Shimoda + - Sergei Shtylyov + - Kay Sievers + - Sebastian Siewior + - Rik Snel + - Jes Sorensen + - Alexey Starikovskiy + - Alan Stern + - Timur Tabi + - Hirokazu Takata + - Eliezer Tamir + - Eugene Teo + - Doug Thompson + - FUJITA Tomonori + - Dmitry Torokhov + - Marcelo Tosatti + - Steven Toth + - Theodore Tso + - Matthias Urlichs + - Geert Uytterhoeven + - Arjan van de Ven + - Ivo van Doorn + - Rik van Riel + - Wim Van Sebroeck + - Hans Verkuil + - Horst H. von Brand + - Dmitri Vorobiev + - Anton Vorontsov + - Daniel Walker + - Johannes Weiner + - Harald Welte + - Matthew Wilcox + - Dan J. Williams + - Darrick J. Wong + - David Woodhouse + - Chris Wright + - Bryan Wu + - Rafael J. Wysocki + - Herbert Xu + - Vlad Yasevich + - Peter Zijlstra + - Bartlomiej Zolnierkiewicz -- cgit v1.2.3 From 68e51252224d06e14457de98960a4622993350ab Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sat, 30 Sep 2017 08:43:53 -0700 Subject: Documentation: add kernel-api section on Math functions Add a kernel-api section on Math Functions. Signed-off-by: Randy Dunlap Signed-off-by: Jonathan Corbet --- Documentation/core-api/kernel-api.rst | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'Documentation') diff --git a/Documentation/core-api/kernel-api.rst b/Documentation/core-api/kernel-api.rst index 657a89a219b2..9c6902ba6e67 100644 --- a/Documentation/core-api/kernel-api.rst +++ b/Documentation/core-api/kernel-api.rst @@ -103,6 +103,30 @@ idr/ida Functions .. kernel-doc:: lib/idr.c :export: +Math Functions in Linux +======================= + +Base 2 log and power Functions +------------------------------ + +.. kernel-doc:: include/linux/log2.h + :internal: + +Division Functions +------------------ + +.. kernel-doc:: include/asm-generic/div64.h + :functions: do_div + +.. kernel-doc:: include/linux/math64.h + :internal: + +.. kernel-doc:: lib/div64.c + :functions: div_s64_rem div64_u64_rem div64_u64 div64_s64 + +.. kernel-doc:: lib/gcd.c + :export: + Memory Management in Linux ========================== -- cgit v1.2.3 From 58e7cb9e935d53c64414361fba3f95ed261f9110 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 6 Oct 2017 00:38:49 +0200 Subject: PM: docs: Fix stale reference in kernel-parameters.txt Commit 7aa7a0360a66 (PM: docs: Delete the obsolete states.txt document) forgot to update kernel-parameters.txt with a reference to the new sleep-states.rst document and it still points to states.txt that was dropped, so fix it now. Fixes: 7aa7a0360a66 (PM: docs: Delete the obsolete states.txt document) Signed-off-by: Rafael J. Wysocki Signed-off-by: Jonathan Corbet --- Documentation/admin-guide/kernel-parameters.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index f02961bda6f4..a3427399fd07 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2248,7 +2248,7 @@ s2idle - Suspend-To-Idle shallow - Power-On Suspend or equivalent (if supported) deep - Suspend-To-RAM or equivalent (if supported) - See Documentation/power/states.txt. + See Documentation/admin-guide/pm/sleep-states.rst. meye.*= [HW] Set MotionEye Camera parameters See Documentation/video4linux/meye.txt. -- cgit v1.2.3 From 18d59893eb2e836c920856772ead554eb461ef72 Mon Sep 17 00:00:00 2001 From: Pierre-Yves MORDRET Date: Thu, 28 Sep 2017 17:36:40 +0200 Subject: dt-bindings: Document the STM32 MDMA bindings This patch adds documentation of device tree bindings for the STM32 MDMA controller. Signed-off-by: M'boumba Cedric Madianga Signed-off-by: Pierre-Yves MORDRET Acked-by: Rob Herring Signed-off-by: Vinod Koul --- .../devicetree/bindings/dma/stm32-mdma.txt | 94 ++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/stm32-mdma.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/dma/stm32-mdma.txt b/Documentation/devicetree/bindings/dma/stm32-mdma.txt new file mode 100644 index 000000000000..d18772d6bc65 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/stm32-mdma.txt @@ -0,0 +1,94 @@ +* STMicroelectronics STM32 MDMA controller + +The STM32 MDMA is a general-purpose direct memory access controller capable of +supporting 64 independent DMA channels with 256 HW requests. + +Required properties: +- compatible: Should be "st,stm32h7-mdma" +- reg: Should contain MDMA registers location and length. This should include + all of the per-channel registers. +- interrupts: Should contain the MDMA interrupt. +- clocks: Should contain the input clock of the DMA instance. +- resets: Reference to a reset controller asserting the DMA controller. +- #dma-cells : Must be <5>. See DMA client paragraph for more details. + +Optional properties: +- dma-channels: Number of DMA channels supported by the controller. +- dma-requests: Number of DMA request signals supported by the controller. +- st,ahb-addr-masks: Array of u32 mask to list memory devices addressed via + AHB bus. + +Example: + + mdma1: dma@52000000 { + compatible = "st,stm32h7-mdma"; + reg = <0x52000000 0x1000>; + interrupts = <122>; + clocks = <&timer_clk>; + resets = <&rcc 992>; + #dma-cells = <5>; + dma-channels = <16>; + dma-requests = <32>; + st,ahb-addr-masks = <0x20000000>, <0x00000000>; + }; + +* DMA client + +DMA clients connected to the STM32 MDMA controller must use the format +described in the dma.txt file, using a five-cell specifier for each channel: +a phandle to the MDMA controller plus the following five integer cells: + +1. The request line number +2. The priority level + 0x00: Low + 0x01: Medium + 0x10: High + 0x11: Very high +3. A 32bit mask specifying the DMA channel configuration + -bit 0-1: Source increment mode + 0x00: Source address pointer is fixed + 0x10: Source address pointer is incremented after each data transfer + 0x11: Source address pointer is decremented after each data transfer + -bit 2-3: Destination increment mode + 0x00: Destination address pointer is fixed + 0x10: Destination address pointer is incremented after each data + transfer + 0x11: Destination address pointer is decremented after each data + transfer + -bit 8-9: Source increment offset size + 0x00: byte (8bit) + 0x01: half-word (16bit) + 0x10: word (32bit) + 0x11: double-word (64bit) + -bit 10-11: Destination increment offset size + 0x00: byte (8bit) + 0x01: half-word (16bit) + 0x10: word (32bit) + 0x11: double-word (64bit) +-bit 25-18: The number of bytes to be transferred in a single transfer + (min = 1 byte, max = 128 bytes) +-bit 29:28: Trigger Mode + 0x00: Each MDMA request triggers a buffer transfer (max 128 bytes) + 0x01: Each MDMA request triggers a block transfer (max 64K bytes) + 0x10: Each MDMA request triggers a repeated block transfer + 0x11: Each MDMA request triggers a linked list transfer +4. A 32bit value specifying the register to be used to acknowledge the request + if no HW ack signal is used by the MDMA client +5. A 32bit mask specifying the value to be written to acknowledge the request + if no HW ack signal is used by the MDMA client + +Example: + + i2c4: i2c@5c002000 { + compatible = "st,stm32f7-i2c"; + reg = <0x5c002000 0x400>; + interrupts = <95>, + <96>; + clocks = <&timer_clk>; + #address-cells = <1>; + #size-cells = <0>; + dmas = <&mdma1 36 0x0 0x40008 0x0 0x0>, + <&mdma1 37 0x0 0x40002 0x0 0x0>; + dma-names = "rx", "tx"; + status = "disabled"; + }; -- cgit v1.2.3 From 5543de66e26776c20ecfb9e498c2561d74823ec3 Mon Sep 17 00:00:00 2001 From: Biju Das Date: Fri, 6 Oct 2017 18:15:17 +0100 Subject: dmaengine: usb-dmac: Add compatible string for r8a7743/5 This patch adds support for r8a7743/5 SoCs. The Renesas RZ/G1[ME] (R8A7743/5) usbdmac engine is identical to the R-Car Gen2 family. No driver change is needed due to the fallback compatible value "renesas,r8a7743-usb-dmac". Adding the SoC-specific compatible values here has two purposes: 1. Document which SoCs have this hardware module, 2. Allow checkpatch to validate compatible values. Signed-off-by: Biju Das Signed-off-by: Chris Paterson Reviewed-by: Geert Uytterhoeven Signed-off-by: Vinod Koul --- Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt b/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt index 1be6941ac1e5..f3d1f151ba80 100644 --- a/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt +++ b/Documentation/devicetree/bindings/dma/renesas,usb-dmac.txt @@ -3,6 +3,8 @@ Required Properties: -compatible: "renesas,-usb-dmac", "renesas,usb-dmac" as fallback. Examples with soctypes are: + - "renesas,r8a7743-usb-dmac" (RZ/G1M) + - "renesas,r8a7745-usb-dmac" (RZ/G1E) - "renesas,r8a7790-usb-dmac" (R-Car H2) - "renesas,r8a7791-usb-dmac" (R-Car M2-W) - "renesas,r8a7793-usb-dmac" (R-Car M2-N) -- cgit v1.2.3 From c40610198f35e8264f9175dafe74db6288a07eda Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 4 Oct 2017 08:38:23 +0200 Subject: soc: samsung: Remove Exynos4212 related dead code Support for Exynos4212 SoCs has been removed by commit bca9085e0ae9 ("ARM: dts: exynos: remove Exynos4212 support (dead code)"), so there is no need to keep remaining dead code related to this SoC version. Signed-off-by: Marek Szyprowski Signed-off-by: Krzysztof Kozlowski --- Documentation/devicetree/bindings/arm/samsung/pmu.txt | 1 - drivers/soc/samsung/exynos-pmu.c | 9 --------- drivers/soc/samsung/exynos-pmu.h | 2 -- drivers/soc/samsung/exynos4-pmu.c | 13 ++----------- 4 files changed, 2 insertions(+), 23 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/samsung/pmu.txt b/Documentation/devicetree/bindings/arm/samsung/pmu.txt index bf5fc59a6938..87ed95512b63 100644 --- a/Documentation/devicetree/bindings/arm/samsung/pmu.txt +++ b/Documentation/devicetree/bindings/arm/samsung/pmu.txt @@ -4,7 +4,6 @@ Properties: - compatible : should contain two values. First value must be one from following list: - "samsung,exynos3250-pmu" - for Exynos3250 SoC, - "samsung,exynos4210-pmu" - for Exynos4210 SoC, - - "samsung,exynos4212-pmu" - for Exynos4212 SoC, - "samsung,exynos4412-pmu" - for Exynos4412 SoC, - "samsung,exynos5250-pmu" - for Exynos5250 SoC, - "samsung,exynos5260-pmu" - for Exynos5260 SoC. diff --git a/drivers/soc/samsung/exynos-pmu.c b/drivers/soc/samsung/exynos-pmu.c index bd4a76f27bc2..938f8ccfcb74 100644 --- a/drivers/soc/samsung/exynos-pmu.c +++ b/drivers/soc/samsung/exynos-pmu.c @@ -60,12 +60,6 @@ void exynos_sys_powerdown_conf(enum sys_powerdown mode) if (pmu_data->powerdown_conf_extra) pmu_data->powerdown_conf_extra(mode); - - if (pmu_data->pmu_config_extra) { - for (i = 0; pmu_data->pmu_config_extra[i].offset != PMU_TABLE_END; i++) - pmu_raw_writel(pmu_data->pmu_config_extra[i].val[mode], - pmu_data->pmu_config_extra[i].offset); - } } /* @@ -88,9 +82,6 @@ static const struct of_device_id exynos_pmu_of_device_ids[] = { }, { .compatible = "samsung,exynos4210-pmu", .data = exynos_pmu_data_arm_ptr(exynos4210_pmu_data), - }, { - .compatible = "samsung,exynos4212-pmu", - .data = exynos_pmu_data_arm_ptr(exynos4212_pmu_data), }, { .compatible = "samsung,exynos4412-pmu", .data = exynos_pmu_data_arm_ptr(exynos4412_pmu_data), diff --git a/drivers/soc/samsung/exynos-pmu.h b/drivers/soc/samsung/exynos-pmu.h index 40d4229abfb5..86b3f2f8966d 100644 --- a/drivers/soc/samsung/exynos-pmu.h +++ b/drivers/soc/samsung/exynos-pmu.h @@ -23,7 +23,6 @@ struct exynos_pmu_conf { struct exynos_pmu_data { const struct exynos_pmu_conf *pmu_config; - const struct exynos_pmu_conf *pmu_config_extra; void (*pmu_init)(void); void (*powerdown_conf)(enum sys_powerdown); @@ -36,7 +35,6 @@ extern void __iomem *pmu_base_addr; /* list of all exported SoC specific data */ extern const struct exynos_pmu_data exynos3250_pmu_data; extern const struct exynos_pmu_data exynos4210_pmu_data; -extern const struct exynos_pmu_data exynos4212_pmu_data; extern const struct exynos_pmu_data exynos4412_pmu_data; extern const struct exynos_pmu_data exynos5250_pmu_data; extern const struct exynos_pmu_data exynos5420_pmu_data; diff --git a/drivers/soc/samsung/exynos4-pmu.c b/drivers/soc/samsung/exynos4-pmu.c index bc4fa73bed11..5dbfe4e31f4c 100644 --- a/drivers/soc/samsung/exynos4-pmu.c +++ b/drivers/soc/samsung/exynos4-pmu.c @@ -90,7 +90,7 @@ static const struct exynos_pmu_conf exynos4210_pmu_config[] = { { PMU_TABLE_END,}, }; -static const struct exynos_pmu_conf exynos4x12_pmu_config[] = { +static const struct exynos_pmu_conf exynos4412_pmu_config[] = { { S5P_ARM_CORE0_LOWPWR, { 0x0, 0x0, 0x2 } }, { S5P_DIS_IRQ_CORE0, { 0x0, 0x0, 0x0 } }, { S5P_DIS_IRQ_CENTRAL0, { 0x0, 0x0, 0x0 } }, @@ -195,10 +195,6 @@ static const struct exynos_pmu_conf exynos4x12_pmu_config[] = { { S5P_GPS_ALIVE_LOWPWR, { 0x7, 0x0, 0x0 } }, { S5P_CMU_SYSCLK_ISP_LOWPWR, { 0x1, 0x0, 0x0 } }, { S5P_CMU_SYSCLK_GPS_LOWPWR, { 0x1, 0x0, 0x0 } }, - { PMU_TABLE_END,}, -}; - -static const struct exynos_pmu_conf exynos4412_pmu_config[] = { { S5P_ARM_CORE2_LOWPWR, { 0x0, 0x0, 0x2 } }, { S5P_DIS_IRQ_CORE2, { 0x0, 0x0, 0x0 } }, { S5P_DIS_IRQ_CENTRAL2, { 0x0, 0x0, 0x0 } }, @@ -212,11 +208,6 @@ const struct exynos_pmu_data exynos4210_pmu_data = { .pmu_config = exynos4210_pmu_config, }; -const struct exynos_pmu_data exynos4212_pmu_data = { - .pmu_config = exynos4x12_pmu_config, -}; - const struct exynos_pmu_data exynos4412_pmu_data = { - .pmu_config = exynos4x12_pmu_config, - .pmu_config_extra = exynos4412_pmu_config, + .pmu_config = exynos4412_pmu_config, }; -- cgit v1.2.3 From 78005d91c11ea45a93e68c7d59079784f4c46828 Mon Sep 17 00:00:00 2001 From: Haiyang Zhang Date: Fri, 6 Oct 2017 08:33:59 -0700 Subject: hv_netvsc: Update netvsc Document for TCP hash level setting Update Documentation/networking/netvsc.txt for TCP hash level setting and related info. Signed-off-by: Haiyang Zhang Signed-off-by: David S. Miller --- Documentation/networking/netvsc.txt | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/netvsc.txt b/Documentation/networking/netvsc.txt index 93560fb1170a..92f5b31392fa 100644 --- a/Documentation/networking/netvsc.txt +++ b/Documentation/networking/netvsc.txt @@ -19,12 +19,12 @@ Features Receive Side Scaling -------------------- - Hyper-V supports receive side scaling. For TCP, packets are - distributed among available queues based on IP address and port + Hyper-V supports receive side scaling. For TCP & UDP, packets can + be distributed among available queues based on IP address and port number. - For UDP, we can switch UDP hash level between L3 and L4 by ethtool - command. UDP over IPv4 and v6 can be set differently. The default + For TCP & UDP, we can switch hash level between L3 and L4 by ethtool + command. TCP/UDP over IPv4 and v6 can be set differently. The default hash level is L4. We currently only allow switching TX hash level from within the guests. -- cgit v1.2.3 From 4a9cfe47b8ea3f7b8c551a365184f4aec993ee5d Mon Sep 17 00:00:00 2001 From: Chris Brandt Date: Wed, 4 Oct 2017 16:07:24 -0500 Subject: dt-bindings: pinctrl: Add support for RZ/A1M and RZ/A1L Describe how to specify RZ/A1M and RZ/A1L devices. Signed-off-by: Chris Brandt Signed-off-by: Geert Uytterhoeven --- Documentation/devicetree/bindings/pinctrl/renesas,rza1-pinctrl.txt | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,rza1-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/renesas,rza1-pinctrl.txt index 43e21474528a..fd3696eb36bf 100644 --- a/Documentation/devicetree/bindings/pinctrl/renesas,rza1-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/renesas,rza1-pinctrl.txt @@ -12,8 +12,10 @@ Pin controller node ------------------- Required properties: - - compatible - this shall be "renesas,r7s72100-ports". + - compatible: should be: + - "renesas,r7s72100-ports": for RZ/A1H + - "renesas,r7s72101-ports", "renesas,r7s72100-ports": for RZ/A1M + - "renesas,r7s72102-ports": for RZ/A1L - reg address base and length of the memory area where the pin controller -- cgit v1.2.3 From b091b9ed1b133455dd46346411dfa7526e889a8f Mon Sep 17 00:00:00 2001 From: "Ismail H. Kose" Date: Fri, 22 Sep 2017 13:12:09 -0700 Subject: iio:dac: Add DT binding documentation for ds4424 Signed-off-by: Ismail H. Kose Signed-off-by: Ismail H. Kose Acked-by: Rob Herring Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/dac/ds4424.txt | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/dac/ds4424.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/dac/ds4424.txt b/Documentation/devicetree/bindings/iio/dac/ds4424.txt new file mode 100644 index 000000000000..eaebbf8dab40 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/ds4424.txt @@ -0,0 +1,20 @@ +Maxim Integrated DS4422/DS4424 7-bit Sink/Source Current DAC Device Driver + +Datasheet publicly available at: +https://datasheets.maximintegrated.com/en/ds/DS4422-DS4424.pdf + +Required properties: + - compatible: Should be one of + maxim,ds4422 + maxim,ds4424 + - reg: Should contain the DAC I2C address + +Optional properties: + - vcc-supply: Power supply is optional. If not defined, driver will ignore it. + +Example: + ds4224@10 { + compatible = "maxim,ds4424"; + reg = <0x10>; /* When A0, A1 pins are ground */ + vcc-supply = <&vcc_3v3>; + }; -- cgit v1.2.3 From 7886082dfb6ab8221b1b5509a582256040820c2e Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Wed, 30 Aug 2017 13:50:43 +0200 Subject: dt-bindings: iio: accel: add LIS2DW12 sensor device binding Signed-off-by: Lorenzo Bianconi Acked-by: Rob Herring Reviewed-by: Linus Walleij Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/st-sensors.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt index 678c035d9ed6..9cfc82d21792 100644 --- a/Documentation/devicetree/bindings/iio/st-sensors.txt +++ b/Documentation/devicetree/bindings/iio/st-sensors.txt @@ -46,6 +46,7 @@ Accelerometers: - st,h3lis331dl-accel - st,lng2dm-accel - st,lis3l02dq +- st,lis2dw12 Gyroscopes: - st,l3g4200d-gyro -- cgit v1.2.3 From bb7e5ce7dde6f42e7793bd6cf4b1eb71a20145aa Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Mon, 7 Aug 2017 17:23:20 -0700 Subject: documentation: RCU grace-period memory ordering guarantees This commit provides text and diagrams showing how Tree RCU implements its grace-period memory ordering guarantees. Signed-off-by: Paul E. McKenney Cc: Jonathan Corbet Cc: Linus Torvalds --- .../Design/Memory-Ordering/Tree-RCU-Diagram.html | 9 + .../Memory-Ordering/Tree-RCU-Memory-Ordering.html | 707 +++ .../TreeRCU-callback-invocation.svg | 486 ++ .../Memory-Ordering/TreeRCU-callback-registry.svg | 655 +++ .../RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg | 700 +++ .../Design/Memory-Ordering/TreeRCU-gp-cleanup.svg | 1126 +++++ .../RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg | 1309 +++++ .../Design/Memory-Ordering/TreeRCU-gp-init-1.svg | 656 +++ .../Design/Memory-Ordering/TreeRCU-gp-init-2.svg | 656 +++ .../Design/Memory-Ordering/TreeRCU-gp-init-3.svg | 632 +++ .../RCU/Design/Memory-Ordering/TreeRCU-gp.svg | 5135 ++++++++++++++++++++ .../RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg | 775 +++ .../RCU/Design/Memory-Ordering/TreeRCU-qs.svg | 1095 +++++ .../RCU/Design/Memory-Ordering/rcu_node-lock.svg | 229 + 14 files changed, 14170 insertions(+) create mode 100644 Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Diagram.html create mode 100644 Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.html create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-invocation.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-registry.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-cleanup.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-1.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-2.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-3.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/TreeRCU-qs.svg create mode 100644 Documentation/RCU/Design/Memory-Ordering/rcu_node-lock.svg (limited to 'Documentation') diff --git a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Diagram.html b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Diagram.html new file mode 100644 index 000000000000..e5b42a798ff3 --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Diagram.html @@ -0,0 +1,9 @@ + + + A Diagram of TREE_RCU's Grace-Period Memory Ordering + + +

TreeRCU-gp.svg + + diff --git a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.html b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.html new file mode 100644 index 000000000000..8651b0b4fd79 --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.html @@ -0,0 +1,707 @@ + + + A Tour Through TREE_RCU's Grace-Period Memory Ordering + + +

August 8, 2017

+

This article was contributed by Paul E. McKenney

+ +

Introduction

+ +

This document gives a rough visual overview of how Tree RCU's +grace-period memory ordering guarantee is provided. + +

    +
  1. + What Is Tree RCU's Grace Period Memory Ordering Guarantee? +
  2. + Tree RCU Grace Period Memory Ordering Building Blocks +
  3. + Tree RCU Grace Period Memory Ordering Components +
  4. Putting It All Together +
+ +

+What Is Tree RCU's Grace Period Memory Ordering Guarantee?

+ +

RCU grace periods provide extremely strong memory-ordering guarantees +for non-idle non-offline code. +Any code that happens after the end of a given RCU grace period is guaranteed +to see the effects of all accesses prior to the beginning of that grace +period that are within RCU read-side critical sections. +Similarly, any code that happens before the beginning of a given RCU grace +period is guaranteed to see the effects of all accesses following the end +of that grace period that are within RCU read-side critical sections. + +

This guarantee is particularly pervasive for synchronize_sched(), +for which RCU-sched read-side critical sections include any region +of code for which preemption is disabled. +Given that each individual machine instruction can be thought of as +an extremely small region of preemption-disabled code, one can think of +synchronize_sched() as smp_mb() on steroids. + +

RCU updaters use this guarantee by splitting their updates into +two phases, one of which is executed before the grace period and +the other of which is executed after the grace period. +In the most common use case, phase one removes an element from +a linked RCU-protected data structure, and phase two frees that element. +For this to work, any readers that have witnessed state prior to the +phase-one update (in the common case, removal) must not witness state +following the phase-two update (in the common case, freeing). + +

The RCU implementation provides this guarantee using a network +of lock-based critical sections, memory barriers, and per-CPU +processing, as is described in the following sections. + +

+Tree RCU Grace Period Memory Ordering Building Blocks

+ +

The workhorse for RCU's grace-period memory ordering is the +critical section for the rcu_node structure's +->lock. +These critical sections use helper functions for lock acquisition, including +raw_spin_lock_rcu_node(), +raw_spin_lock_irq_rcu_node(), and +raw_spin_lock_irqsave_rcu_node(). +Their lock-release counterparts are +raw_spin_unlock_rcu_node(), +raw_spin_unlock_irq_rcu_node(), and +raw_spin_unlock_irqrestore_rcu_node(), +respectively. +For completeness, a +raw_spin_trylock_rcu_node() +is also provided. +The key point is that the lock-acquisition functions, including +raw_spin_trylock_rcu_node(), all invoke +smp_mb__after_unlock_lock() immediately after successful +acquisition of the lock. + +

Therefore, for any given rcu_node struction, any access +happening before one of the above lock-release functions will be seen +by all CPUs as happening before any access happening after a later +one of the above lock-acquisition functions. +Furthermore, any access happening before one of the +above lock-release function on any given CPU will be seen by all +CPUs as happening before any access happening after a later one +of the above lock-acquisition functions executing on that same CPU, +even if the lock-release and lock-acquisition functions are operating +on different rcu_node structures. +Tree RCU uses these two ordering guarantees to form an ordering +network among all CPUs that were in any way involved in the grace +period, including any CPUs that came online or went offline during +the grace period in question. + +

The following litmus test exhibits the ordering effects of these +lock-acquisition and lock-release functions: + +

+ 1 int x, y, z;
+ 2
+ 3 void task0(void)
+ 4 {
+ 5   raw_spin_lock_rcu_node(rnp);
+ 6   WRITE_ONCE(x, 1);
+ 7   r1 = READ_ONCE(y);
+ 8   raw_spin_unlock_rcu_node(rnp);
+ 9 }
+10
+11 void task1(void)
+12 {
+13   raw_spin_lock_rcu_node(rnp);
+14   WRITE_ONCE(y, 1);
+15   r2 = READ_ONCE(z);
+16   raw_spin_unlock_rcu_node(rnp);
+17 }
+18
+19 void task2(void)
+20 {
+21   WRITE_ONCE(z, 1);
+22   smp_mb();
+23   r3 = READ_ONCE(x);
+24 }
+25
+26 WARN_ON(r1 == 0 && r2 == 0 && r3 == 0);
+
+ +

The WARN_ON() is evaluated at “the end of time”, +after all changes have propagated throughout the system. +Without the smp_mb__after_unlock_lock() provided by the +acquisition functions, this WARN_ON() could trigger, for example +on PowerPC. +The smp_mb__after_unlock_lock() invocations prevent this +WARN_ON() from triggering. + +

This approach must be extended to include idle CPUs, which need +RCU's grace-period memory ordering guarantee to extend to any +RCU read-side critical sections preceding and following the current +idle sojourn. +This case is handled by calls to the strongly ordered +atomic_add_return() read-modify-write atomic operation that +is invoked within rcu_dynticks_eqs_enter() at idle-entry +time and within rcu_dynticks_eqs_exit() at idle-exit time. +The grace-period kthread invokes rcu_dynticks_snap() and +rcu_dynticks_in_eqs_since() (both of which invoke +an atomic_add_return() of zero) to detect idle CPUs. + + + + + + + + +
 
Quick Quiz:
+ But what about CPUs that remain offline for the entire + grace period? +
Answer:
+ Such CPUs will be offline at the beginning of the grace period, + so the grace period won't expect quiescent states from them. + Races between grace-period start and CPU-hotplug operations + are mediated by the CPU's leaf rcu_node structure's + ->lock as described above. +
 
+ +

The approach must be extended to handle one final case, that +of waking a task blocked in synchronize_rcu(). +This task might be affinitied to a CPU that is not yet aware that +the grace period has ended, and thus might not yet be subject to +the grace period's memory ordering. +Therefore, there is an smp_mb() after the return from +wait_for_completion() in the synchronize_rcu() +code path. + + + + + + + + +
 
Quick Quiz:
+ What? Where??? + I don't see any smp_mb() after the return from + wait_for_completion()!!! +
Answer:
+ That would be because I spotted the need for that + smp_mb() during the creation of this documentation, + and it is therefore unlikely to hit mainline before v4.14. + Kudos to Lance Roy, Will Deacon, Peter Zijlstra, and + Jonathan Cameron for asking questions that sensitized me + to the rather elaborate sequence of events that demonstrate + the need for this memory barrier. +
 
+ +

Tree RCU's grace--period memory-ordering guarantees rely most +heavily on the rcu_node structure's ->lock +field, so much so that it is necessary to abbreviate this pattern +in the diagrams in the next section. +For example, consider the rcu_prepare_for_idle() function +shown below, which is one of several functions that enforce ordering +of newly arrived RCU callbacks against future grace periods: + +

+ 1 static void rcu_prepare_for_idle(void)
+ 2 {
+ 3   bool needwake;
+ 4   struct rcu_data *rdp;
+ 5   struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
+ 6   struct rcu_node *rnp;
+ 7   struct rcu_state *rsp;
+ 8   int tne;
+ 9
+10   if (IS_ENABLED(CONFIG_RCU_NOCB_CPU_ALL) ||
+11       rcu_is_nocb_cpu(smp_processor_id()))
+12     return;
+13   tne = READ_ONCE(tick_nohz_active);
+14   if (tne != rdtp->tick_nohz_enabled_snap) {
+15     if (rcu_cpu_has_callbacks(NULL))
+16       invoke_rcu_core();
+17     rdtp->tick_nohz_enabled_snap = tne;
+18     return;
+19   }
+20   if (!tne)
+21     return;
+22   if (rdtp->all_lazy &&
+23       rdtp->nonlazy_posted != rdtp->nonlazy_posted_snap) {
+24     rdtp->all_lazy = false;
+25     rdtp->nonlazy_posted_snap = rdtp->nonlazy_posted;
+26     invoke_rcu_core();
+27     return;
+28   }
+29   if (rdtp->last_accelerate == jiffies)
+30     return;
+31   rdtp->last_accelerate = jiffies;
+32   for_each_rcu_flavor(rsp) {
+33     rdp = this_cpu_ptr(rsp->rda);
+34     if (rcu_segcblist_pend_cbs(&rdp->cblist))
+35       continue;
+36     rnp = rdp->mynode;
+37     raw_spin_lock_rcu_node(rnp);
+38     needwake = rcu_accelerate_cbs(rsp, rnp, rdp);
+39     raw_spin_unlock_rcu_node(rnp);
+40     if (needwake)
+41       rcu_gp_kthread_wake(rsp);
+42   }
+43 }
+
+ +

But the only part of rcu_prepare_for_idle() that really +matters for this discussion are lines 37–39. +We will therefore abbreviate this function as follows: + +

rcu_node-lock.svg + +

The box represents the rcu_node structure's ->lock +critical section, with the double line on top representing the additional +smp_mb__after_unlock_lock(). + +

+Tree RCU Grace Period Memory Ordering Components

+ +

Tree RCU's grace-period memory-ordering guarantee is provided by +a number of RCU components: + +

    +
  1. Callback Registry +
  2. Grace-Period Initialization +
  3. + Self-Reported Quiescent States +
  4. Dynamic Tick Interface +
  5. CPU-Hotplug Interface +
  6. Forcing Quiescent States +
  7. Grace-Period Cleanup +
  8. Callback Invocation +
+ +

Each of the following section looks at the corresponding component +in detail. + +

Callback Registry

+ +

If RCU's grace-period guarantee is to mean anything at all, any +access that happens before a given invocation of call_rcu() +must also happen before the corresponding grace period. +The implementation of this portion of RCU's grace period guarantee +is shown in the following figure: + +

TreeRCU-callback-registry.svg + +

Because call_rcu() normally acts only on CPU-local state, +it provides no ordering guarantees, either for itself or for +phase one of the update (which again will usually be removal of +an element from an RCU-protected data structure). +It simply enqueues the rcu_head structure on a per-CPU list, +which cannot become associated with a grace period until a later +call to rcu_accelerate_cbs(), as shown in the diagram above. + +

One set of code paths shown on the left invokes +rcu_accelerate_cbs() via +note_gp_changes(), either directly from call_rcu() (if +the current CPU is inundated with queued rcu_head structures) +or more likely from an RCU_SOFTIRQ handler. +Another code path in the middle is taken only in kernels built with +CONFIG_RCU_FAST_NO_HZ=y, which invokes +rcu_accelerate_cbs() via rcu_prepare_for_idle(). +The final code path on the right is taken only in kernels built with +CONFIG_HOTPLUG_CPU=y, which invokes +rcu_accelerate_cbs() via +rcu_advance_cbs(), rcu_migrate_callbacks, +rcutree_migrate_callbacks(), and takedown_cpu(), +which in turn is invoked on a surviving CPU after the outgoing +CPU has been completely offlined. + +

There are a few other code paths within grace-period processing +that opportunistically invoke rcu_accelerate_cbs(). +However, either way, all of the CPU's recently queued rcu_head +structures are associated with a future grace-period number under +the protection of the CPU's lead rcu_node structure's +->lock. +In all cases, there is full ordering against any prior critical section +for that same rcu_node structure's ->lock, and +also full ordering against any of the current task's or CPU's prior critical +sections for any rcu_node structure's ->lock. + +

The next section will show how this ordering ensures that any +accesses prior to the call_rcu() (particularly including phase +one of the update) +happen before the start of the corresponding grace period. + + + + + + + + +
 
Quick Quiz:
+ But what about synchronize_rcu()? +
Answer:
+ The synchronize_rcu() passes call_rcu() + to wait_rcu_gp(), which invokes it. + So either way, it eventually comes down to call_rcu(). +
 
+ +

Grace-Period Initialization

+ +

Grace-period initialization is carried out by +the grace-period kernel thread, which makes several passes over the +rcu_node tree within the rcu_gp_init() function. +This means that showing the full flow of ordering through the +grace-period computation will require duplicating this tree. +If you find this confusing, please note that the state of the +rcu_node changes over time, just like Heraclitus's river. +However, to keep the rcu_node river tractable, the +grace-period kernel thread's traversals are presented in multiple +parts, starting in this section with the various phases of +grace-period initialization. + +

The first ordering-related grace-period initialization action is to +increment the rcu_state structure's ->gpnum +grace-period-number counter, as shown below: + +

TreeRCU-gp-init-1.svg + +

The actual increment is carried out using smp_store_release(), +which helps reject false-positive RCU CPU stall detection. +Note that only the root rcu_node structure is touched. + +

The first pass through the rcu_node tree updates bitmasks +based on CPUs having come online or gone offline since the start of +the previous grace period. +In the common case where the number of online CPUs for this rcu_node +structure has not transitioned to or from zero, +this pass will scan only the leaf rcu_node structures. +However, if the number of online CPUs for a given leaf rcu_node +structure has transitioned from zero, +rcu_init_new_rnp() will be invoked for the first incoming CPU. +Similarly, if the number of online CPUs for a given leaf rcu_node +structure has transitioned to zero, +rcu_cleanup_dead_rnp() will be invoked for the last outgoing CPU. +The diagram below shows the path of ordering if the leftmost +rcu_node structure onlines its first CPU and if the next +rcu_node structure has no online CPUs +(or, alternatively if the leftmost rcu_node structure offlines +its last CPU and if the next rcu_node structure has no online CPUs). + +

TreeRCU-gp-init-1.svg + +

The final rcu_gp_init() pass through the rcu_node +tree traverses breadth-first, setting each rcu_node structure's +->gpnum field to the newly incremented value from the +rcu_state structure, as shown in the following diagram. + +

TreeRCU-gp-init-1.svg + +

This change will also cause each CPU's next call to +__note_gp_changes() +to notice that a new grace period has started, as described in the next +section. +But because the grace-period kthread started the grace period at the +root (with the increment of the rcu_state structure's +->gpnum field) before setting each leaf rcu_node +structure's ->gpnum field, each CPU's observation of +the start of the grace period will happen after the actual start +of the grace period. + + + + + + + + +
 
Quick Quiz:
+ But what about the CPU that started the grace period? + Why wouldn't it see the start of the grace period right when + it started that grace period? +
Answer:
+ In some deep philosophical and overly anthromorphized + sense, yes, the CPU starting the grace period is immediately + aware of having done so. + However, if we instead assume that RCU is not self-aware, + then even the CPU starting the grace period does not really + become aware of the start of this grace period until its + first call to __note_gp_changes(). + On the other hand, this CPU potentially gets early notification + because it invokes __note_gp_changes() during its + last rcu_gp_init() pass through its leaf + rcu_node structure. +
 
+ +

+Self-Reported Quiescent States

+ +

When all entities that might block the grace period have reported +quiescent states (or as described in a later section, had quiescent +states reported on their behalf), the grace period can end. +Online non-idle CPUs report their own quiescent states, as shown +in the following diagram: + +

TreeRCU-qs.svg + +

This is for the last CPU to report a quiescent state, which signals +the end of the grace period. +Earlier quiescent states would push up the rcu_node tree +only until they encountered an rcu_node structure that +is waiting for additional quiescent states. +However, ordering is nevertheless preserved because some later quiescent +state will acquire that rcu_node structure's ->lock. + +

Any number of events can lead up to a CPU invoking +note_gp_changes (or alternatively, directly invoking +__note_gp_changes()), at which point that CPU will notice +the start of a new grace period while holding its leaf +rcu_node lock. +Therefore, all execution shown in this diagram happens after the +start of the grace period. +In addition, this CPU will consider any RCU read-side critical +section that started before the invocation of __note_gp_changes() +to have started before the grace period, and thus a critical +section that the grace period must wait on. + + + + + + + + +
 
Quick Quiz:
+ But a RCU read-side critical section might have started + after the beginning of the grace period + (the ->gpnum++ from earlier), so why should + the grace period wait on such a critical section? +
Answer:
+ It is indeed not necessary for the grace period to wait on such + a critical section. + However, it is permissible to wait on it. + And it is furthermore important to wait on it, as this + lazy approach is far more scalable than a “big bang” + all-at-once grace-period start could possibly be. +
 
+ +

If the CPU does a context switch, a quiescent state will be +noted by rcu_node_context_switch() on the left. +On the other hand, if the CPU takes a scheduler-clock interrupt +while executing in usermode, a quiescent state will be noted by +rcu_check_callbacks() on the right. +Either way, the passage through a quiescent state will be noted +in a per-CPU variable. + +

The next time an RCU_SOFTIRQ handler executes on +this CPU (for example, after the next scheduler-clock +interrupt), __rcu_process_callbacks() will invoke +rcu_check_quiescent_state(), which will notice the +recorded quiescent state, and invoke +rcu_report_qs_rdp(). +If rcu_report_qs_rdp() verifies that the quiescent state +really does apply to the current grace period, it invokes +rcu_report_rnp() which traverses up the rcu_node +tree as shown at the bottom of the diagram, clearing bits from +each rcu_node structure's ->qsmask field, +and propagating up the tree when the result is zero. + +

Note that traversal passes upwards out of a given rcu_node +structure only if the current CPU is reporting the last quiescent +state for the subtree headed by that rcu_node structure. +A key point is that if a CPU's traversal stops at a given rcu_node +structure, then there will be a later traversal by another CPU +(or perhaps the same one) that proceeds upwards +from that point, and the rcu_node ->lock +guarantees that the first CPU's quiescent state happens before the +remainder of the second CPU's traversal. +Applying this line of thought repeatedly shows that all CPUs' +quiescent states happen before the last CPU traverses through +the root rcu_node structure, the “last CPU” +being the one that clears the last bit in the root rcu_node +structure's ->qsmask field. + +

Dynamic Tick Interface

+ +

Due to energy-efficiency considerations, RCU is forbidden from +disturbing idle CPUs. +CPUs are therefore required to notify RCU when entering or leaving idle +state, which they do via fully ordered value-returning atomic operations +on a per-CPU variable. +The ordering effects are as shown below: + +

TreeRCU-dyntick.svg + +

The RCU grace-period kernel thread samples the per-CPU idleness +variable while holding the corresponding CPU's leaf rcu_node +structure's ->lock. +This means that any RCU read-side critical sections that precede the +idle period (the oval near the top of the diagram above) will happen +before the end of the current grace period. +Similarly, the beginning of the current grace period will happen before +any RCU read-side critical sections that follow the +idle period (the oval near the bottom of the diagram above). + +

Plumbing this into the full grace-period execution is described +below. + +

CPU-Hotplug Interface

+ +

RCU is also forbidden from disturbing offline CPUs, which might well +be powered off and removed from the system completely. +CPUs are therefore required to notify RCU of their comings and goings +as part of the corresponding CPU hotplug operations. +The ordering effects are shown below: + +

TreeRCU-hotplug.svg + +

Because CPU hotplug operations are much less frequent than idle transitions, +they are heavier weight, and thus acquire the CPU's leaf rcu_node +structure's ->lock and update this structure's +->qsmaskinitnext. +The RCU grace-period kernel thread samples this mask to detect CPUs +having gone offline since the beginning of this grace period. + +

Plumbing this into the full grace-period execution is described +below. + +

Forcing Quiescent States

+ +

As noted above, idle and offline CPUs cannot report their own +quiescent states, and therefore the grace-period kernel thread +must do the reporting on their behalf. +This process is called “forcing quiescent states”, it is +repeated every few jiffies, and its ordering effects are shown below: + +

TreeRCU-gp-fqs.svg + +

Each pass of quiescent state forcing is guaranteed to traverse the +leaf rcu_node structures, and if there are no new quiescent +states due to recently idled and/or offlined CPUs, then only the +leaves are traversed. +However, if there is a newly offlined CPU as illustrated on the left +or a newly idled CPU as illustrated on the right, the corresponding +quiescent state will be driven up towards the root. +As with self-reported quiescent states, the upwards driving stops +once it reaches an rcu_node structure that has quiescent +states outstanding from other CPUs. + + + + + + + + +
 
Quick Quiz:
+ The leftmost drive to root stopped before it reached + the root rcu_node structure, which means that + there are still CPUs subordinate to that structure on + which the current grace period is waiting. + Given that, how is it possible that the rightmost drive + to root ended the grace period? +
Answer:
+ Good analysis! + It is in fact impossible in the absence of bugs in RCU. + But this diagram is complex enough as it is, so simplicity + overrode accuracy. + You can think of it as poetic license, or you can think of + it as misdirection that is resolved in the + stitched-together diagram. +
 
+ +

Grace-Period Cleanup

+ +

Grace-period cleanup first scans the rcu_node tree +breadth-first setting all the ->completed fields equal +to the number of the newly completed grace period, then it sets +the rcu_state structure's ->completed field, +again to the number of the newly completed grace period. +The ordering effects are shown below: + +

TreeRCU-gp-cleanup.svg + +

As indicated by the oval at the bottom of the diagram, once +grace-period cleanup is complete, the next grace period can begin. + + + + + + + + +
 
Quick Quiz:
+ But when precisely does the grace period end? +
Answer:
+ There is no useful single point at which the grace period + can be said to end. + The earliest reasonable candidate is as soon as the last + CPU has reported its quiescent state, but it may be some + milliseconds before RCU becomes aware of this. + The latest reasonable candidate is once the rcu_state + structure's ->completed field has been updated, + but it is quite possible that some CPUs have already completed + phase two of their updates by that time. + In short, if you are going to work with RCU, you need to + learn to embrace uncertainty. +
 
+ + +

Callback Invocation

+ +

Once a given CPU's leaf rcu_node structure's +->completed field has been updated, that CPU can begin +invoking its RCU callbacks that were waiting for this grace period +to end. +These callbacks are identified by rcu_advance_cbs(), +which is usually invoked by __note_gp_changes(). +As shown in the diagram below, this invocation can be triggered by +the scheduling-clock interrupt (rcu_check_callbacks() on +the left) or by idle entry (rcu_cleanup_after_idle() on +the right, but only for kernels build with +CONFIG_RCU_FAST_NO_HZ=y). +Either way, RCU_SOFTIRQ is raised, which results in +rcu_do_batch() invoking the callbacks, which in turn +allows those callbacks to carry out (either directly or indirectly +via wakeup) the needed phase-two processing for each update. + +

TreeRCU-callback-invocation.svg + +

Please note that callback invocation can also be prompted by any +number of corner-case code paths, for example, when a CPU notes that +it has excessive numbers of callbacks queued. +In all cases, the CPU acquires its leaf rcu_node structure's +->lock before invoking callbacks, which preserves the +required ordering against the newly completed grace period. + +

However, if the callback function communicates to other CPUs, +for example, doing a wakeup, then it is that function's responsibility +to maintain ordering. +For example, if the callback function wakes up a task that runs on +some other CPU, proper ordering must in place in both the callback +function and the task being awakened. +To see why this is important, consider the top half of the +grace-period cleanup diagram. +The callback might be running on a CPU corresponding to the leftmost +leaf rcu_node structure, and awaken a task that is to run on +a CPU corresponding to the rightmost leaf rcu_node structure, +and the grace-period kernel thread might not yet have reached the +rightmost leaf. +In this case, the grace period's memory ordering might not yet have +reached that CPU, so again the callback function and the awakened +task must supply proper ordering. + +

Putting It All Together

+ +

A stitched-together diagram is +here. + +

+Legal Statement

+ +

This work represents the view of the author and does not necessarily +represent the view of IBM. + +

Linux is a registered trademark of Linus Torvalds. + +

Other company, product, and service names may be trademarks or +service marks of others. + + diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-invocation.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-invocation.svg new file mode 100644 index 000000000000..832408313d93 --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-invocation.svg @@ -0,0 +1,486 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + rcu_check_callbacks() + + rcu_cleanup_after_idle() + + rcu_advance_cbs() + + + Leaf + __note_gp_changes() + + + + Phase Two + of Update + + + RCU_SOFTIRQ + rcu_do_batch() + + diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-registry.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-registry.svg new file mode 100644 index 000000000000..7ac6f9269806 --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-callback-registry.svg @@ -0,0 +1,655 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + rcu_accelerate_cbs() + + + + + rcu_prepare_for_idle() + + rcu_accelerate_cbs() + + + + + note_gp_changes() + rcu_advance_cbs() + __note_gp_changes() + + call_rcu() + + Wake up + grace-period + kernel thread + + rcu_accelerate_cbs() + + + + + takedown_cpu() + rcutree_migrate_callbacks() + rcu_migrate_callbacks() + rcu_advance_cbs() + Leaf + Leaf + Leaf + + Phase One + of Update + + diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg new file mode 100644 index 000000000000..423df00c4df9 --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-dyntick.svg @@ -0,0 +1,700 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ->qsmask &= ~->grpmask + Leaf + dyntick_save_progress_counter() + rcu_implicit_dynticks_qs() + + + + RCU + read-side + critical section + + + + rcu_dynticks_eqs_enter() + atomic_add_return() + + + + rcu_dynticks_eqs_exit() + atomic_add_return() + + + + RCU + read-side + critical section + + diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-cleanup.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-cleanup.svg new file mode 100644 index 000000000000..754f426b297a --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-cleanup.svg @@ -0,0 +1,1126 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ->completed = ->gpnum + + + + + Root + + + rcu_gp_cleanup() + + + + + + ->completed = ->gpnum + + + + + + + Leaf + ->completed = ->gpnum + + + rsp->completed = + + + + + Root + rnp->completed + + + + + + + + + + + + Leaf + + + + + + + + + + + + Leaf + + + + + + + Leaf + + + + + + + Leaf + + + + + + + + + + + + + + ->completed = ->gpnum + + + + + + + Leaf + + + + + + + Leaf + ->completed = ->gpnum + + + + + + + Leaf + ->completed = ->gpnum + + + + + + + + ->completed = ->gpnum + + + Start of + Next Grace + Period + + + diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg new file mode 100644 index 000000000000..7ddc094d7f28 --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-fqs.svg @@ -0,0 +1,1309 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + rcu_gp_fqs() + + + + + + ->qsmask &= ~->grpmask + + + + + + + Leaf + + + + + + + ->qsmask &= ~->grpmask + + + + + + + Leaf + + + + + + + Leaf + + + + + + + Leaf + ->qsmask &= ~->grpmask + + + + + + + + + force_qs_rnp() + dyntick_save_progress_counter() + + + + + + Root + ->qsmask &= ~->grpmask + + rcu_implicit_dynticks_qs() + ->qsmask &= ~->grpmask + + + RCU + read-side + critical section + + + + rcu_dynticks_eqs_enter() + atomic_add_return() + + + + rcu_dynticks_eqs_exit() + atomic_add_return() + + + + RCU + read-side + critical section + + + + RCU + read-side + critical section + + + + rcu_report_dead() + rcu_cleanup_dying_idle_cpu() + + + + + ->qsmaskinitnext + Leaf + + + + RCU + read-side + critical section + + + + rcu_cpu_starting() + + + + + ->qsmaskinitnext + Leaf + + + diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-1.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-1.svg new file mode 100644 index 000000000000..0161262904ec --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-1.svg @@ -0,0 +1,656 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + rsp->gpnum++ + + + + + Root + + + rcu_gp_init() + + + + + + + + + + + + Leaf + + + + + + + + + + + + + Leaf + + + + + + + Leaf + + + + + + + Leaf + + + + + + + + + + End of + Last Grace + Period + + + diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-2.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-2.svg new file mode 100644 index 000000000000..4d956a732685 --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-2.svg @@ -0,0 +1,656 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + rcu_gp_init() + + + + + + + + + + + + Leaf + + + + + + + ->qsmaskinit + ->qsmaskinitnext + + + + + + + Leaf + + + + + + + Leaf + + + + + + + Leaf + ->qsmaskinit + + + + + + + + + rcu_init_new_rnp() or + rcu_cleanup_dead_rnp() + (optional) + + ->qsmaskinit + + + + + Root + ->qsmaskinitnext + + diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-3.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-3.svg new file mode 100644 index 000000000000..de6ecc51b00e --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp-init-3.svg @@ -0,0 +1,632 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ->gpnum = rsp->gpnum + + + + + Root + + + rcu_gp_init() + + + + + + ->gpnum = rsp->gpnum + + + + + + + Leaf + ->gpnum = rsp->gpnum + + + + + + + ->gpnum = rsp->gpnum + + + + + + + Leaf + + + + + + + Leaf + ->gpnum = rsp->gpnum + + + + + + + Leaf + ->gpnum = rsp->gpnum + + + + + + + + ->gpnum = rsp->gpnum + diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg new file mode 100644 index 000000000000..b13b7b01bb3a --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-gp.svg @@ -0,0 +1,5135 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + rcu_accelerate_cbs() + + + + + rcu_prepare_for_idle() + + rcu_accelerate_cbs() + + + + + note_gp_changes() + rcu_advance_cbs() + __note_gp_changes() + + call_rcu() + + Wake up + grace-period + kernel thread + + rcu_accelerate_cbs() + + + + + takedown_cpu() + rcutree_migrate_callbacks() + rcu_migrate_callbacks() + rcu_advance_cbs() + Leaf + Leaf + Leaf + + Phase One + of Update + + + rsp->gpnum++ + + + + + Root + + + rcu_gp_init() + + + + + + + + + + + + Leaf + + + + + + + + + + + + + Leaf + + + + + + + Leaf + + + + + + + Leaf + + + + + + + + + + End of + Last Grace + Period + + + + Grace-period + kernel thread + awakened + + + + + + + + + + + + + + Leaf + + + + + + + ->qsmaskinit + ->qsmaskinitnext + + + + + + + Leaf + + + + + + + Leaf + + + + + + + Leaf + ->qsmaskinit + + + + + + + + + rcu_init_new_rnp() or + rcu_cleanup_dead_rnp() + (optional) + + ->qsmaskinit + + + + + Root + ->qsmaskinitnext + + + + ->gpnum = rsp->gpnum + + + + + Root + + + + + + + ->gpnum = rsp->gpnum + + + + + + + Leaf + ->gpnum = rsp->gpnum + + + + + + + ->gpnum = rsp->gpnum + + + + + + + Leaf + + + + + + + Leaf + ->gpnum = rsp->gpnum + + + + + + + Leaf + ->gpnum = rsp->gpnum + + + + + + + + ->gpnum = rsp->gpnum + + + + + + + rcu_gp_fqs() + + + + + + ->qsmask &= ~->grpmask + + + + + + + Leaf + + + + + + + ->qsmask &= ~->grpmask + + + + + + + Leaf + + + + + + + Leaf + + + + + + + Leaf + ->qsmask &= ~->grpmask + + + + + + + + + force_qs_rnp() + dyntick_save_progress_counter() + + + + + + Root + ->qsmask &= ~->grpmask + + rcu_implicit_dynticks_qs() + ->qsmask &= ~->grpmask + + + RCU + read-side + critical section + + + + rcu_dynticks_eqs_enter() + atomic_add_return() + + + + rcu_dynticks_eqs_exit() + atomic_add_return() + + + + RCU + read-side + critical section + + + + RCU + read-side + critical section + + + + rcu_report_dead() + rcu_cleanup_dying_idle_cpu() + + + + + ->qsmaskinitnext + Leaf + + + + RCU + read-side + critical section + + + + rcu_cpu_starting() + + + + + ->qsmaskinitnext + Leaf + + + + + ->qsmask &= ~->grpmask + + + + + Root + + + rcu_report_rnp() + + + + + + + + + + + + Leaf + + + + + + + ->qsmask &= ~->grpmask + + + + + + + Leaf + + + + + + + Leaf + + + + + + + Leaf + ->qsmask &= ~->grpmask + + + + + + + + + + + + + + + + + note_gp_changes() + rdp->gpnum + __note_gp_changes() + Leaf + + + + rcu_node_context_switch() + + + + rcu_check_callbacks() + + + + rcu_process_callbacks() + rcu_check_quiescent_state()) + rcu__report_qs_rdp()) + + + + RCU + read-side + critical section + + + + RCU + read-side + critical section + + + + RCU + read-side + critical section + + + + RCU + read-side + critical section + + + + + + Wake up + grace-period + kernel thread + + + + rcu_report_qs_rsp() + + + Grace-period + kernel thread + awakened + + + + ->completed = ->gpnum + + + + + Root + + + rcu_gp_cleanup() + + + + + + ->completed = ->gpnum + + + + + + Leaf + ->completed = ->gpnum + + rsp->completed = + + + + + Root + rnp->completed + + + + + + + + + + + Leaf + + + + + + + + + + + + Leaf + + + + + + + Leaf + + + + + + + Leaf + + + + + + + + + + + + + ->completed = ->gpnum + + + + + + + Leaf + + + + + + + Leaf + ->completed = ->gpnum + + + + + + + Leaf + ->completed = ->gpnum + + + + + + + + ->completed = ->gpnum + + + Start of + Next Grace + Period + + + + + + rcu_check_callbacks() + + rcu_cleanup_after_idle() + rcu_advance_cbs() + + + Leaf + __note_gp_changes() + + + Phase Two + of Update + + + RCU_SOFTIRQ + rcu_do_batch() + + diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg new file mode 100644 index 000000000000..2c9310ba29ba --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-hotplug.svg @@ -0,0 +1,775 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ->qsmask &= ~->grpmask + dyntick_save_progress_counter() + rcu_implicit_dynticks_qs() + Leaf + + + + RCU + read-side + critical section + + + + rcu_report_dead() + rcu_cleanup_dying_idle_cpu() + + + + + ->qsmaskinitnext + Leaf + + + + RCU + read-side + critical section + + + + rcu_cpu_starting() + + + + + ->qsmaskinitnext + Leaf + + diff --git a/Documentation/RCU/Design/Memory-Ordering/TreeRCU-qs.svg b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-qs.svg new file mode 100644 index 000000000000..de3992f4cbe1 --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/TreeRCU-qs.svg @@ -0,0 +1,1095 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ->qsmask &= ~->grpmask + + + + + Root + + + rcu_report_rnp() + + + + + + + + + + + + Leaf + + + + + + + ->qsmask &= ~->grpmask + + + + + + + Leaf + + + + + + + Leaf + + + + + + + Leaf + ->qsmask &= ~->grpmask + + + + + + + + + + + + + + + + + + note_gp_changes() + rdp->gpnum + __note_gp_changes() + Leaf + + + + rcu_node_context_switch() + + + + rcu_check_callbacks() + + + + rcu_process_callbacks() + rcu_check_quiescent_state()) + rcu__report_qs_rdp()) + + + + RCU + read-side + critical section + + + + RCU + read-side + critical section + + + + RCU + read-side + critical section + + + + RCU + read-side + critical section + + + + + + + Wake up + grace-period + kernel thread + + + + rcu_report_qs_rsp() + + diff --git a/Documentation/RCU/Design/Memory-Ordering/rcu_node-lock.svg b/Documentation/RCU/Design/Memory-Ordering/rcu_node-lock.svg new file mode 100644 index 000000000000..94c96c595aed --- /dev/null +++ b/Documentation/RCU/Design/Memory-Ordering/rcu_node-lock.svg @@ -0,0 +1,229 @@ + + + + + + + + + + + + image/svg+xml + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + rcu_accelerate_cbs() + + + + + + + rcu_prepare_for_idle() + + -- cgit v1.2.3 From dfa0ee48ef86f79430d2be9d1e2e1b509abb3cce Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Wed, 9 Aug 2017 10:16:29 -0700 Subject: documentation: Long-running irq handlers can stall RCU grace periods If a periodic interrupt's handler takes longer to execute than the period between successive interrupts, RCU's kthreads and softirq handlers can be prevented from executing, resulting in otherwise inexplicable RCU CPU stall warnings. This commit therefore calls out this possibility in Documentation/RCU/stallwarn.txt. Reported-by: Daniel Lezcano Signed-off-by: Paul E. McKenney --- Documentation/RCU/stallwarn.txt | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/RCU/stallwarn.txt b/Documentation/RCU/stallwarn.txt index 96a3d81837e1..21b8913acbdf 100644 --- a/Documentation/RCU/stallwarn.txt +++ b/Documentation/RCU/stallwarn.txt @@ -40,7 +40,9 @@ o Booting Linux using a console connection that is too slow to o Anything that prevents RCU's grace-period kthreads from running. This can result in the "All QSes seen" console-log message. This message will include information on when the kthread last - ran and how often it should be expected to run. + ran and how often it should be expected to run. It can also + result in the "rcu_.*kthread starved for" console-log message, + which will include additional debugging information. o A CPU-bound real-time task in a CONFIG_PREEMPT kernel, which might happen to preempt a low-priority task in the middle of an RCU @@ -60,6 +62,14 @@ o A CPU-bound real-time task in a CONFIG_PREEMPT_RT kernel that CONFIG_PREEMPT_RCU case, you might see stall-warning messages. +o A periodic interrupt whose handler takes longer than the time + interval between successive pairs of interrupts. This can + prevent RCU's kthreads and softirq handlers from running. + Note that certain high-overhead debugging options, for example + the function_graph tracer, can result in interrupt handler taking + considerably longer than normal, which can in turn result in + RCU CPU stall warnings. + o A hardware or software issue shuts off the scheduler-clock interrupt on a CPU that is not in dyntick-idle mode. This problem really has happened, and seems to be most likely to -- cgit v1.2.3 From 3d916a443e97169a3d88765c4e0b07ac813f439f Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 10 Aug 2017 14:33:17 -0700 Subject: documentation: Slow systems can stall RCU grace periods If a fast system has a worst-case grace-period duration of (say) ten seconds, then running the same workload on a system ten times as slow will get you an RCU CPU stall warning given default stall-warning timeout settings. This commit therefore adds this possibility to stallwarn.txt. Reported-by: Daniel Lezcano Signed-off-by: Paul E. McKenney --- Documentation/RCU/stallwarn.txt | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'Documentation') diff --git a/Documentation/RCU/stallwarn.txt b/Documentation/RCU/stallwarn.txt index 21b8913acbdf..238acbd94917 100644 --- a/Documentation/RCU/stallwarn.txt +++ b/Documentation/RCU/stallwarn.txt @@ -70,6 +70,12 @@ o A periodic interrupt whose handler takes longer than the time considerably longer than normal, which can in turn result in RCU CPU stall warnings. +o Testing a workload on a fast system, tuning the stall-warning + timeout down to just barely avoid RCU CPU stall warnings, and then + running the same workload with the same stall-warning timeout on a + slow system. Note that thermal throttling and on-demand governors + can cause a single system to be sometimes fast and sometimes slow! + o A hardware or software issue shuts off the scheduler-clock interrupt on a CPU that is not in dyntick-idle mode. This problem really has happened, and seems to be most likely to -- cgit v1.2.3 From d3cf5176d0b17610b7c7f1562e496ec401fe01f8 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 17 Aug 2017 12:29:22 -0700 Subject: documentation: Update RCU CPU stall warning messages The RCU CPU stall warnings have morphed significantly since the last update, so this commit brings the documentation up to date. Signed-off-by: Paul E. McKenney --- Documentation/RCU/stallwarn.txt | 182 +++++++++++++++++++++++----------------- 1 file changed, 105 insertions(+), 77 deletions(-) (limited to 'Documentation') diff --git a/Documentation/RCU/stallwarn.txt b/Documentation/RCU/stallwarn.txt index 238acbd94917..a08f928c8557 100644 --- a/Documentation/RCU/stallwarn.txt +++ b/Documentation/RCU/stallwarn.txt @@ -171,67 +171,32 @@ Interpreting RCU's CPU Stall-Detector "Splats" For non-RCU-tasks flavors of RCU, when a CPU detects that it is stalling, it will print a message similar to the following: -INFO: rcu_sched_state detected stall on CPU 5 (t=2500 jiffies) + INFO: rcu_sched detected stalls on CPUs/tasks: + 2-...: (3 GPs behind) idle=06c/0/0 softirq=1453/1455 fqs=0 + 16-...: (0 ticks this GP) idle=81c/0/0 softirq=764/764 fqs=0 + (detected by 32, t=2603 jiffies, g=7073, c=7072, q=625) -This message indicates that CPU 5 detected that it was causing a stall, -and that the stall was affecting RCU-sched. This message will normally be -followed by a stack dump of the offending CPU. On TREE_RCU kernel builds, -RCU and RCU-sched are implemented by the same underlying mechanism, -while on PREEMPT_RCU kernel builds, RCU is instead implemented -by rcu_preempt_state. - -On the other hand, if the offending CPU fails to print out a stall-warning -message quickly enough, some other CPU will print a message similar to -the following: - -INFO: rcu_bh_state detected stalls on CPUs/tasks: { 3 5 } (detected by 2, 2502 jiffies) - -This message indicates that CPU 2 detected that CPUs 3 and 5 were both -causing stalls, and that the stall was affecting RCU-bh. This message +This message indicates that CPU 32 detected that CPUs 2 and 16 were both +causing stalls, and that the stall was affecting RCU-sched. This message will normally be followed by stack dumps for each CPU. Please note that -PREEMPT_RCU builds can be stalled by tasks as well as by CPUs, -and that the tasks will be indicated by PID, for example, "P3421". -It is even possible for a rcu_preempt_state stall to be caused by both -CPUs -and- tasks, in which case the offending CPUs and tasks will all -be called out in the list. - -Finally, if the grace period ends just as the stall warning starts -printing, there will be a spurious stall-warning message: - -INFO: rcu_bh_state detected stalls on CPUs/tasks: { } (detected by 4, 2502 jiffies) - -This is rare, but does happen from time to time in real life. It is also -possible for a zero-jiffy stall to be flagged in this case, depending -on how the stall warning and the grace-period initialization happen to -interact. Please note that it is not possible to entirely eliminate this -sort of false positive without resorting to things like stop_machine(), -which is overkill for this sort of problem. - -Recent kernels will print a long form of the stall-warning message: - - INFO: rcu_preempt detected stall on CPU - 0: (63959 ticks this GP) idle=241/3fffffffffffffff/0 softirq=82/543 - (t=65000 jiffies) - -In kernels with CONFIG_RCU_FAST_NO_HZ, more information is printed: - - INFO: rcu_preempt detected stall on CPU - 0: (64628 ticks this GP) idle=dd5/3fffffffffffffff/0 softirq=82/543 last_accelerate: a345/d342 nonlazy_posted: 25 .D - (t=65000 jiffies) +PREEMPT_RCU builds can be stalled by tasks as well as by CPUs, and that +the tasks will be indicated by PID, for example, "P3421". It is even +possible for a rcu_preempt_state stall to be caused by both CPUs -and- +tasks, in which case the offending CPUs and tasks will all be called +out in the list. -The "(64628 ticks this GP)" indicates that this CPU has taken more -than 64,000 scheduling-clock interrupts during the current stalled -grace period. If the CPU was not yet aware of the current grace -period (for example, if it was offline), then this part of the message -indicates how many grace periods behind the CPU is. +CPU 2's "(3 GPs behind)" indicates that this CPU has not interacted with +the RCU core for the past three grace periods. In contrast, CPU 16's "(0 +ticks this GP)" indicates that this CPU has not taken any scheduling-clock +interrupts during the current stalled grace period. The "idle=" portion of the message prints the dyntick-idle state. The hex number before the first "/" is the low-order 12 bits of the -dynticks counter, which will have an even-numbered value if the CPU is -in dyntick-idle mode and an odd-numbered value otherwise. The hex -number between the two "/"s is the value of the nesting, which will -be a small positive number if in the idle loop and a very large positive -number (as shown above) otherwise. +dynticks counter, which will have an even-numbered value if the CPU +is in dyntick-idle mode and an odd-numbered value otherwise. The hex +number between the two "/"s is the value of the nesting, which will be +a small non-negative number if in the idle loop (as shown above) and a +very large positive number otherwise. The "softirq=" portion of the message tracks the number of RCU softirq handlers that the stalled CPU has executed. The number before the "/" @@ -246,24 +211,72 @@ handlers are no longer able to execute on this CPU. This can happen if the stalled CPU is spinning with interrupts are disabled, or, in -rt kernels, if a high-priority process is starving RCU's softirq handler. -For CONFIG_RCU_FAST_NO_HZ kernels, the "last_accelerate:" prints the -low-order 16 bits (in hex) of the jiffies counter when this CPU last -invoked rcu_try_advance_all_cbs() from rcu_needs_cpu() or last invoked -rcu_accelerate_cbs() from rcu_prepare_for_idle(). The "nonlazy_posted:" -prints the number of non-lazy callbacks posted since the last call to -rcu_needs_cpu(). Finally, an "L" indicates that there are currently -no non-lazy callbacks ("." is printed otherwise, as shown above) and -"D" indicates that dyntick-idle processing is enabled ("." is printed -otherwise, for example, if disabled via the "nohz=" kernel boot parameter). +The "fps=" shows the number of force-quiescent-state idle/offline +detection passes that the grace-period kthread has made across this +CPU since the last time that this CPU noted the beginning of a grace +period. + +The "detected by" line indicates which CPU detected the stall (in this +case, CPU 32), how many jiffies have elapsed since the start of the +grace period (in this case 2603), the number of the last grace period +to start and to complete (7073 and 7072, respectively), and an estimate +of the total number of RCU callbacks queued across all CPUs (625 in +this case). + +In kernels with CONFIG_RCU_FAST_NO_HZ, more information is printed +for each CPU: + + 0: (64628 ticks this GP) idle=dd5/3fffffffffffffff/0 softirq=82/543 last_accelerate: a345/d342 nonlazy_posted: 25 .D + +The "last_accelerate:" prints the low-order 16 bits (in hex) of the +jiffies counter when this CPU last invoked rcu_try_advance_all_cbs() +from rcu_needs_cpu() or last invoked rcu_accelerate_cbs() from +rcu_prepare_for_idle(). The "nonlazy_posted:" prints the number +of non-lazy callbacks posted since the last call to rcu_needs_cpu(). +Finally, an "L" indicates that there are currently no non-lazy callbacks +("." is printed otherwise, as shown above) and "D" indicates that +dyntick-idle processing is enabled ("." is printed otherwise, for example, +if disabled via the "nohz=" kernel boot parameter). + +If the grace period ends just as the stall warning starts printing, +there will be a spurious stall-warning message, which will include +the following: + + INFO: Stall ended before state dump start + +This is rare, but does happen from time to time in real life. It is also +possible for a zero-jiffy stall to be flagged in this case, depending +on how the stall warning and the grace-period initialization happen to +interact. Please note that it is not possible to entirely eliminate this +sort of false positive without resorting to things like stop_machine(), +which is overkill for this sort of problem. + +If all CPUs and tasks have passed through quiescent states, but the +grace period has nevertheless failed to end, the stall-warning splat +will include something like the following: + + All QSes seen, last rcu_preempt kthread activity 23807 (4297905177-4297881370), jiffies_till_next_fqs=3, root ->qsmask 0x0 + +The "23807" indicates that it has been more than 23 thousand jiffies +since the grace-period kthread ran. The "jiffies_till_next_fqs" +indicates how frequently that kthread should run, giving the number +of jiffies between force-quiescent-state scans, in this case three, +which is way less than 23807. Finally, the root rcu_node structure's +->qsmask field is printed, which will normally be zero. If the relevant grace-period kthread has been unable to run prior to -the stall warning, the following additional line is printed: +the stall warning, as was the case in the "All QSes seen" line above, +the following additional line is printed: - rcu_preempt kthread starved for 2023 jiffies! + kthread starved for 23807 jiffies! g7073 c7072 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1 -Starving the grace-period kthreads of CPU time can of course result in -RCU CPU stall warnings even when all CPUs and tasks have passed through -the required quiescent states. +Starving the grace-period kthreads of CPU time can of course result +in RCU CPU stall warnings even when all CPUs and tasks have passed +through the required quiescent states. The "g" and "c" numbers flag the +number of the last grace period started and completed, respectively, +the "f" precedes the ->gp_flags command to the grace-period kthread, +the "RCU_GP_WAIT_FQS" indicates that the kthread is waiting for a short +timeout, and the "state" precedes value of the task_struct ->state field. Multiple Warnings From One Stall @@ -280,13 +293,28 @@ Stall Warnings for Expedited Grace Periods If an expedited grace period detects a stall, it will place a message like the following in dmesg: - INFO: rcu_sched detected expedited stalls on CPUs: { 1 2 6 } 26009 jiffies s: 1043 - -This indicates that CPUs 1, 2, and 6 have failed to respond to a -reschedule IPI, that the expedited grace period has been going on for -26,009 jiffies, and that the expedited grace-period sequence counter is -1043. The fact that this last value is odd indicates that an expedited -grace period is in flight. + INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 7-... } 21119 jiffies s: 73 root: 0x2/. + +This indicates that CPU 7 has failed to respond to a reschedule IPI. +The three periods (".") following the CPU number indicate that the CPU +is online (otherwise the first period would instead have been "O"), +that the CPU was online at the beginning of the expedited grace period +(otherwise the second period would have instead been "o"), and that +the CPU has been online at least once since boot (otherwise, the third +period would instead have been "N"). The number before the "jiffies" +indicates that the expedited grace period has been going on for 21,119 +jiffies. The number following the "s:" indicates that the expedited +grace-period sequence counter is 73. The fact that this last value is +odd indicates that an expedited grace period is in flight. The number +following "root:" is a bitmask that indicates which children of the root +rcu_node structure correspond to CPUs and/or tasks that are blocking the +current expedited grace period. If the tree had more than one level, +additional hex numbers would be printed for the states of the other +rcu_node structures in the tree. + +As with normal grace periods, PREEMPT_RCU builds can be stalled by +tasks as well as by CPUs, and that the tasks will be indicated by PID, +for example, "P3421". It is entirely possible to see stall warnings from normal and from -expedited grace periods at about the same time from the same run. +expedited grace periods at about the same time during the same run. -- cgit v1.2.3 From f1ab25a30ce81f4e9be3cb33cd9bb9fb2db64b28 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Tue, 29 Aug 2017 15:49:21 -0700 Subject: memory-barriers: Replace uses of "transitive" The current version of memory-barriers.txt misuses the term "transitive", so this commit replaces it with multi-copy atomic, also adding a definition of this term. Reported-by: Alan Stern Signed-off-by: Paul E. McKenney --- Documentation/memory-barriers.txt | 185 +++++++++++++++++++------------------- 1 file changed, 91 insertions(+), 94 deletions(-) (limited to 'Documentation') diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt index b759a60624fd..b6882680247e 100644 --- a/Documentation/memory-barriers.txt +++ b/Documentation/memory-barriers.txt @@ -53,7 +53,7 @@ CONTENTS - SMP barrier pairing. - Examples of memory barrier sequences. - Read memory barriers vs load speculation. - - Transitivity + - Multicopy atomicity. (*) Explicit kernel barriers. @@ -635,6 +635,11 @@ can be used to record rare error conditions and the like, and the CPUs' naturally occurring ordering prevents such records from being lost. +Note well that the ordering provided by a data dependency is local to +the CPU containing it. See the section on "Multicopy atomicity" for +more information. + + The data dependency barrier is very important to the RCU system, for example. See rcu_assign_pointer() and rcu_dereference() in include/linux/rcupdate.h. This permits the current target of an RCU'd @@ -851,38 +856,11 @@ In short, control dependencies apply only to the stores in the then-clause and else-clause of the if-statement in question (including functions invoked by those two clauses), not to code following that if-statement. -Finally, control dependencies do -not- provide transitivity. This is -demonstrated by two related examples, with the initial values of -'x' and 'y' both being zero: - - CPU 0 CPU 1 - ======================= ======================= - r1 = READ_ONCE(x); r2 = READ_ONCE(y); - if (r1 > 0) if (r2 > 0) - WRITE_ONCE(y, 1); WRITE_ONCE(x, 1); - - assert(!(r1 == 1 && r2 == 1)); - -The above two-CPU example will never trigger the assert(). However, -if control dependencies guaranteed transitivity (which they do not), -then adding the following CPU would guarantee a related assertion: - - CPU 2 - ===================== - WRITE_ONCE(x, 2); - - assert(!(r1 == 2 && r2 == 1 && x == 2)); /* FAILS!!! */ -But because control dependencies do -not- provide transitivity, the above -assertion can fail after the combined three-CPU example completes. If you -need the three-CPU example to provide ordering, you will need smp_mb() -between the loads and stores in the CPU 0 and CPU 1 code fragments, -that is, just before or just after the "if" statements. Furthermore, -the original two-CPU example is very fragile and should be avoided. +Note well that the ordering provided by a control dependency is local +to the CPU containing it. See the section on "Multicopy atomicity" +for more information. -These two examples are the LB and WWC litmus tests from this paper: -http://www.cl.cam.ac.uk/users/pes20/ppc-supplemental/test6.pdf and this -site: https://www.cl.cam.ac.uk/~pes20/ppcmem/index.html. In summary: @@ -922,8 +900,8 @@ In summary: (*) Control dependencies pair normally with other types of barriers. - (*) Control dependencies do -not- provide transitivity. If you - need transitivity, use smp_mb(). + (*) Control dependencies do -not- provide multicopy atomicity. If you + need all the CPUs to see a given store at the same time, use smp_mb(). (*) Compilers do not understand control dependencies. It is therefore your job to ensure that they do not break your code. @@ -936,13 +914,14 @@ When dealing with CPU-CPU interactions, certain types of memory barrier should always be paired. A lack of appropriate pairing is almost certainly an error. General barriers pair with each other, though they also pair with most -other types of barriers, albeit without transitivity. An acquire barrier -pairs with a release barrier, but both may also pair with other barriers, -including of course general barriers. A write barrier pairs with a data -dependency barrier, a control dependency, an acquire barrier, a release -barrier, a read barrier, or a general barrier. Similarly a read barrier, -control dependency, or a data dependency barrier pairs with a write -barrier, an acquire barrier, a release barrier, or a general barrier: +other types of barriers, albeit without multicopy atomicity. An acquire +barrier pairs with a release barrier, but both may also pair with other +barriers, including of course general barriers. A write barrier pairs +with a data dependency barrier, a control dependency, an acquire barrier, +a release barrier, a read barrier, or a general barrier. Similarly a +read barrier, control dependency, or a data dependency barrier pairs +with a write barrier, an acquire barrier, a release barrier, or a +general barrier: CPU 1 CPU 2 =============== =============== @@ -1359,64 +1338,77 @@ the speculation will be cancelled and the value reloaded: retrieved : : +-------+ -TRANSITIVITY ------------- +MULTICOPY ATOMICITY +-------------------- + +Multicopy atomicity is a deeply intuitive notion about ordering that is +not always provided by real computer systems, namely that a given store +is visible at the same time to all CPUs, or, alternatively, that all +CPUs agree on the order in which all stores took place. However, use of +full multicopy atomicity would rule out valuable hardware optimizations, +so a weaker form called ``other multicopy atomicity'' instead guarantees +that a given store is observed at the same time by all -other- CPUs. The +remainder of this document discusses this weaker form, but for brevity +will call it simply ``multicopy atomicity''. -Transitivity is a deeply intuitive notion about ordering that is not -always provided by real computer systems. The following example -demonstrates transitivity: +The following example demonstrates multicopy atomicity: CPU 1 CPU 2 CPU 3 ======================= ======================= ======================= { X = 0, Y = 0 } - STORE X=1 LOAD X STORE Y=1 - - LOAD Y LOAD X + STORE X=1 r1=LOAD X (reads 1) LOAD Y (reads 1) + + STORE Y=r1 LOAD X -Suppose that CPU 2's load from X returns 1 and its load from Y returns 0. -This indicates that CPU 2's load from X in some sense follows CPU 1's -store to X and that CPU 2's load from Y in some sense preceded CPU 3's -store to Y. The question is then "Can CPU 3's load from X return 0?" +Suppose that CPU 2's load from X returns 1 which it then stores to Y and +that CPU 3's load from Y returns 1. This indicates that CPU 2's load +from X in some sense follows CPU 1's store to X and that CPU 2's store +to Y in some sense preceded CPU 3's load from Y. The question is then +"Can CPU 3's load from X return 0?" -Because CPU 2's load from X in some sense came after CPU 1's store, it +Because CPU 3's load from X in some sense came after CPU 2's load, it is natural to expect that CPU 3's load from X must therefore return 1. -This expectation is an example of transitivity: if a load executing on -CPU A follows a load from the same variable executing on CPU B, then -CPU A's load must either return the same value that CPU B's load did, -or must return some later value. - -In the Linux kernel, use of general memory barriers guarantees -transitivity. Therefore, in the above example, if CPU 2's load from X -returns 1 and its load from Y returns 0, then CPU 3's load from X must -also return 1. - -However, transitivity is -not- guaranteed for read or write barriers. -For example, suppose that CPU 2's general barrier in the above example -is changed to a read barrier as shown below: +This expectation is an example of multicopy atomicity: if a load executing +on CPU A follows a load from the same variable executing on CPU B, then +an understandable but incorrect expectation is that CPU A's load must +either return the same value that CPU B's load did, or must return some +later value. + +In the Linux kernel, the above use of a general memory barrier compensates +for any lack of multicopy atomicity. Therefore, in the above example, +if CPU 2's load from X returns 1 and its load from Y returns 0, and CPU 3's +load from Y returns 1, then CPU 3's load from X must also return 1. + +However, dependencies, read barriers, and write barriers are not always +able to compensate for non-multicopy atomicity. For example, suppose +that CPU 2's general barrier is removed from the above example, leaving +only the data dependency shown below: CPU 1 CPU 2 CPU 3 ======================= ======================= ======================= { X = 0, Y = 0 } - STORE X=1 LOAD X STORE Y=1 - - LOAD Y LOAD X - -This substitution destroys transitivity: in this example, it is perfectly -legal for CPU 2's load from X to return 1, its load from Y to return 0, -and CPU 3's load from X to return 0. - -The key point is that although CPU 2's read barrier orders its pair -of loads, it does not guarantee to order CPU 1's store. Therefore, if -this example runs on a system where CPUs 1 and 2 share a store buffer -or a level of cache, CPU 2 might have early access to CPU 1's writes. -General barriers are therefore required to ensure that all CPUs agree -on the combined order of CPU 1's and CPU 2's accesses. - -General barriers provide "global transitivity", so that all CPUs will -agree on the order of operations. In contrast, a chain of release-acquire -pairs provides only "local transitivity", so that only those CPUs on -the chain are guaranteed to agree on the combined order of the accesses. -For example, switching to C code in deference to Herman Hollerith: + STORE X=1 r1=LOAD X (reads 1) LOAD Y (reads 1) + + STORE Y=r1 LOAD X (reads 0) + +This substitution allows non-multicopy atomicity to run rampant: in +this example, it is perfectly legal for CPU 2's load from X to return 1, +CPU 3's load from Y to return 1, and its load from X to return 0. + +The key point is that although CPU 2's data dependency orders its load +and store, it does not guarantee to order CPU 1's store. Therefore, +if this example runs on a non-multicopy-atomic system where CPUs 1 and 2 +share a store buffer or a level of cache, CPU 2 might have early access +to CPU 1's writes. A general barrier is therefore required to ensure +that all CPUs agree on the combined order of CPU 1's and CPU 2's accesses. + +General barriers can compensate not only for non-multicopy atomicity, +but can also generate additional ordering that can ensure that -all- +CPUs will perceive the same order of -all- operations. In contrast, a +chain of release-acquire pairs do not provide this additional ordering, +which means that only those CPUs on the chain are guaranteed to agree +on the combined order of the accesses. For example, switching to C code +in deference to the ghost of Herman Hollerith: int u, v, x, y, z; @@ -1448,9 +1440,9 @@ For example, switching to C code in deference to Herman Hollerith: r3 = READ_ONCE(u); } -Because cpu0(), cpu1(), and cpu2() participate in a local transitive -chain of smp_store_release()/smp_load_acquire() pairs, the following -outcome is prohibited: +Because cpu0(), cpu1(), and cpu2() participate in a chain of +smp_store_release()/smp_load_acquire() pairs, the following outcome +is prohibited: r0 == 1 && r1 == 1 && r2 == 1 @@ -1460,9 +1452,9 @@ outcome is prohibited: r1 == 1 && r5 == 0 -However, the transitivity of release-acquire is local to the participating -CPUs and does not apply to cpu3(). Therefore, the following outcome -is possible: +However, the ordering provided by a release-acquire chain is local +to the CPUs participating in that chain and does not apply to cpu3(), +at least aside from stores. Therefore, the following outcome is possible: r0 == 0 && r1 == 1 && r2 == 1 && r3 == 0 && r4 == 0 @@ -1490,8 +1482,8 @@ following outcome is possible: Note that this outcome can happen even on a mythical sequentially consistent system where nothing is ever reordered. -To reiterate, if your code requires global transitivity, use general -barriers throughout. +To reiterate, if your code requires full ordering of all operations, +use general barriers throughout. ======================== @@ -3101,6 +3093,9 @@ AMD64 Architecture Programmer's Manual Volume 2: System Programming Chapter 7.1: Memory-Access Ordering Chapter 7.4: Buffering and Combining Memory Writes +ARM Architecture Reference Manual (ARMv8, for ARMv8-A architecture profile) + Chapter B2: The AArch64 Application Level Memory Model + IA-32 Intel Architecture Software Developer's Manual, Volume 3: System Programming Guide Chapter 7.1: Locked Atomic Operations @@ -3112,6 +3107,8 @@ The SPARC Architecture Manual, Version 9 Appendix D: Formal Specification of the Memory Models Appendix J: Programming with the Memory Models +Storage in the PowerPC (Stone and Fitzgerald) + UltraSPARC Programmer Reference Manual Chapter 5: Memory Accesses and Cacheability Chapter 15: Sparc-V9 Memory Models -- cgit v1.2.3 From 0902b1f44a72558aece92f074154044861681f84 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 1 Sep 2017 07:53:34 -0700 Subject: memory-barriers: Rework multicopy-atomicity section Signed-off-by: Alan Stern Signed-off-by: Paul E. McKenney --- Documentation/memory-barriers.txt | 58 ++++++++++++++++++++------------------- 1 file changed, 30 insertions(+), 28 deletions(-) (limited to 'Documentation') diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt index b6882680247e..7deee1441640 100644 --- a/Documentation/memory-barriers.txt +++ b/Documentation/memory-barriers.txt @@ -1343,13 +1343,13 @@ MULTICOPY ATOMICITY Multicopy atomicity is a deeply intuitive notion about ordering that is not always provided by real computer systems, namely that a given store -is visible at the same time to all CPUs, or, alternatively, that all -CPUs agree on the order in which all stores took place. However, use of -full multicopy atomicity would rule out valuable hardware optimizations, -so a weaker form called ``other multicopy atomicity'' instead guarantees -that a given store is observed at the same time by all -other- CPUs. The -remainder of this document discusses this weaker form, but for brevity -will call it simply ``multicopy atomicity''. +becomes visible at the same time to all CPUs, or, alternatively, that all +CPUs agree on the order in which all stores become visible. However, +support of full multicopy atomicity would rule out valuable hardware +optimizations, so a weaker form called ``other multicopy atomicity'' +instead guarantees only that a given store becomes visible at the same +time to all -other- CPUs. The remainder of this document discusses this +weaker form, but for brevity will call it simply ``multicopy atomicity''. The following example demonstrates multicopy atomicity: @@ -1360,24 +1360,26 @@ The following example demonstrates multicopy atomicity: STORE Y=r1 LOAD X -Suppose that CPU 2's load from X returns 1 which it then stores to Y and -that CPU 3's load from Y returns 1. This indicates that CPU 2's load -from X in some sense follows CPU 1's store to X and that CPU 2's store -to Y in some sense preceded CPU 3's load from Y. The question is then -"Can CPU 3's load from X return 0?" +Suppose that CPU 2's load from X returns 1, which it then stores to Y, +and CPU 3's load from Y returns 1. This indicates that CPU 1's store +to X precedes CPU 2's load from X and that CPU 2's store to Y precedes +CPU 3's load from Y. In addition, the memory barriers guarantee that +CPU 2 executes its load before its store, and CPU 3 loads from Y before +it loads from X. The question is then "Can CPU 3's load from X return 0?" -Because CPU 3's load from X in some sense came after CPU 2's load, it +Because CPU 3's load from X in some sense comes after CPU 2's load, it is natural to expect that CPU 3's load from X must therefore return 1. -This expectation is an example of multicopy atomicity: if a load executing -on CPU A follows a load from the same variable executing on CPU B, then -an understandable but incorrect expectation is that CPU A's load must -either return the same value that CPU B's load did, or must return some -later value. - -In the Linux kernel, the above use of a general memory barrier compensates -for any lack of multicopy atomicity. Therefore, in the above example, -if CPU 2's load from X returns 1 and its load from Y returns 0, and CPU 3's -load from Y returns 1, then CPU 3's load from X must also return 1. +This expectation follows from multicopy atomicity: if a load executing +on CPU B follows a load from the same variable executing on CPU A (and +CPU A did not originally store the value which it read), then on +multicopy-atomic systems, CPU B's load must return either the same value +that CPU A's load did or some later value. However, the Linux kernel +does not require systems to be multicopy atomic. + +The use of a general memory barrier in the example above compensates +for any lack of multicopy atomicity. In the example, if CPU 2's load +from X returns 1 and CPU 3's load from Y returns 1, then CPU 3's load +from X must indeed also return 1. However, dependencies, read barriers, and write barriers are not always able to compensate for non-multicopy atomicity. For example, suppose @@ -1396,11 +1398,11 @@ this example, it is perfectly legal for CPU 2's load from X to return 1, CPU 3's load from Y to return 1, and its load from X to return 0. The key point is that although CPU 2's data dependency orders its load -and store, it does not guarantee to order CPU 1's store. Therefore, -if this example runs on a non-multicopy-atomic system where CPUs 1 and 2 -share a store buffer or a level of cache, CPU 2 might have early access -to CPU 1's writes. A general barrier is therefore required to ensure -that all CPUs agree on the combined order of CPU 1's and CPU 2's accesses. +and store, it does not guarantee to order CPU 1's store. Thus, if this +example runs on a non-multicopy-atomic system where CPUs 1 and 2 share a +store buffer or a level of cache, CPU 2 might have early access to CPU 1's +writes. General barriers are therefore required to ensure that all CPUs +agree on the combined order of multiple accesses. General barriers can compensate not only for non-multicopy atomicity, but can also generate additional ordering that can ensure that -all- -- cgit v1.2.3 From 2b1516e55f8416acfb48d5f43d41222d180fb5a3 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 18 Aug 2017 16:11:37 -0700 Subject: rcutorture: Add interrupt-disable capability to stall-warning tests When rcutorture sees the rcutorture.stall_cpu kernel boot parameter, it loops with preemption disabled, which does in fact normally generate an RCU CPU stall warning message. However, there are test scenarios that need the stalling CPU to have interrupts disabled. This commit therefore adds an rcutorture.stall_cpu_irqsoff kernel boot parameter that causes the stalling CPU to disable interrupts. Signed-off-by: Paul E. McKenney --- Documentation/admin-guide/kernel-parameters.txt | 3 +++ kernel/rcu/rcutorture.c | 18 +++++++++++++----- 2 files changed, 16 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 05496622b4ef..bc94c47085a5 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3539,6 +3539,9 @@ rcutorture.stall_cpu_holdoff= [KNL] Time to wait (s) after boot before inducing stall. + rcutorture.stall_cpu_irqsoff= [KNL] + Disable interrupts while stalling if set. + rcutorture.stat_interval= [KNL] Time (s) between statistics printk()s. diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 45f2ffbc1e78..0273bc0a8586 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -89,6 +89,7 @@ torture_param(int, shutdown_secs, 0, "Shutdown time (s), <= zero to disable."); torture_param(int, stall_cpu, 0, "Stall duration (s), zero to disable."); torture_param(int, stall_cpu_holdoff, 10, "Time to wait before starting stall (s)."); +torture_param(int, stall_cpu_irqsoff, 0, "Disable interrupts while stalling."); torture_param(int, stat_interval, 60, "Number of seconds between stats printk()s"); torture_param(int, stutter, 5, "Number of seconds to run/halt test"); @@ -1357,7 +1358,7 @@ rcu_torture_print_module_parms(struct rcu_torture_ops *cur_ops, const char *tag) "fqs_duration=%d fqs_holdoff=%d fqs_stutter=%d " "test_boost=%d/%d test_boost_interval=%d " "test_boost_duration=%d shutdown_secs=%d " - "stall_cpu=%d stall_cpu_holdoff=%d " + "stall_cpu=%d stall_cpu_holdoff=%d stall_cpu_irqsoff=%d " "n_barrier_cbs=%d " "onoff_interval=%d onoff_holdoff=%d\n", torture_type, tag, nrealreaders, nfakewriters, @@ -1365,7 +1366,7 @@ rcu_torture_print_module_parms(struct rcu_torture_ops *cur_ops, const char *tag) stutter, irqreader, fqs_duration, fqs_holdoff, fqs_stutter, test_boost, cur_ops->can_boost, test_boost_interval, test_boost_duration, shutdown_secs, - stall_cpu, stall_cpu_holdoff, + stall_cpu, stall_cpu_holdoff, stall_cpu_irqsoff, n_barrier_cbs, onoff_interval, onoff_holdoff); } @@ -1430,12 +1431,19 @@ static int rcu_torture_stall(void *args) if (!kthread_should_stop()) { stop_at = get_seconds() + stall_cpu; /* RCU CPU stall is expected behavior in following code. */ - pr_alert("rcu_torture_stall start.\n"); rcu_read_lock(); - preempt_disable(); + if (stall_cpu_irqsoff) + local_irq_disable(); + else + preempt_disable(); + pr_alert("rcu_torture_stall start on CPU %d.\n", + smp_processor_id()); while (ULONG_CMP_LT(get_seconds(), stop_at)) continue; /* Induce RCU CPU stall warning. */ - preempt_enable(); + if (stall_cpu_irqsoff) + local_irq_enable(); + else + preempt_enable(); rcu_read_unlock(); pr_alert("rcu_torture_stall end.\n"); } -- cgit v1.2.3 From 19f3f22aade704f9ce82a55c853381e672629a1d Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Fri, 6 Oct 2017 17:39:19 +0100 Subject: dt-bindings: PCI: designware: Add binding for Designware PCIe in ECAM mode Describe the binding for firmware-configured instances of the Synopsys DesignWare PCIe controller in RC mode, that are almost but not quite ECAM compliant. Signed-off-by: Ard Biesheuvel Signed-off-by: Bjorn Helgaas Acked-by: Rob Herring --- .../bindings/pci/designware-pcie-ecam.txt | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/designware-pcie-ecam.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pci/designware-pcie-ecam.txt b/Documentation/devicetree/bindings/pci/designware-pcie-ecam.txt new file mode 100644 index 000000000000..515b2f9542e5 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/designware-pcie-ecam.txt @@ -0,0 +1,42 @@ +* Synopsys DesignWare PCIe root complex in ECAM shift mode + +In some cases, firmware may already have configured the Synopsys DesignWare +PCIe controller in RC mode with static ATU window mappings that cover all +config, MMIO and I/O spaces in a [mostly] ECAM compatible fashion. +In this case, there is no need for the OS to perform any low level setup +of clocks, PHYs or device registers, nor is there any reason for the driver +to reconfigure ATU windows for config and/or IO space accesses at runtime. + +In cases where the IP was synthesized with a minimum ATU window size of +64 KB, it cannot be supported by the generic ECAM driver, because it +requires special config space accessors that filter accesses to device #1 +and beyond on the first bus. + +Required properties: +- compatible: "marvell,armada8k-pcie-ecam" or + "socionext,synquacer-pcie-ecam" or + "snps,dw-pcie-ecam" (must be preceded by a more specific match) + +Please refer to the binding document of "pci-host-ecam-generic" in the +file host-generic-pci.txt for a description of the remaining required +and optional properties. + +Example: + + pcie1: pcie@7f000000 { + compatible = "socionext,synquacer-pcie-ecam", "snps,dw-pcie-ecam"; + device_type = "pci"; + reg = <0x0 0x7f000000 0x0 0xf00000>; + bus-range = <0x0 0xe>; + #address-cells = <3>; + #size-cells = <2>; + ranges = <0x1000000 0x00 0x00010000 0x00 0x7ff00000 0x0 0x00010000>, + <0x2000000 0x00 0x70000000 0x00 0x70000000 0x0 0x0f000000>, + <0x3000000 0x3f 0x00000000 0x3f 0x00000000 0x1 0x00000000>; + + #interrupt-cells = <0x1>; + interrupt-map-mask = <0x0 0x0 0x0 0x0>; + interrupt-map = <0x0 0x0 0x0 0x0 &gic 0x0 0x0 0x0 182 0x4>; + msi-map = <0x0 &its 0x0 0x10000>; + dma-coherent; + }; -- cgit v1.2.3 From 6be53520ad8f87dc748f381e4e8e6a846a4b466b Mon Sep 17 00:00:00 2001 From: Dou Liyang Date: Mon, 9 Oct 2017 17:03:33 +0800 Subject: x86/tsc: Append the 'tsc=' description for the 'tsc=unstable' boot parameter Commit: 8309f86cd41e ("x86/tsc: Provide 'tsc=unstable' boot parameter") added a new 'tsc=unstable' parameter, but didn't document it. Document it. Signed-off-by: Dou Liyang Signed-off-by: Peter Zijlstra (Intel) Cc: Cc: Cc: Cc: Linus Torvalds Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1507539813-11420-1-git-send-email-douly.fnst@cn.fujitsu.com Signed-off-by: Ingo Molnar --- Documentation/admin-guide/kernel-parameters.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 05496622b4ef..6b99c8b77c59 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4194,6 +4194,9 @@ Used to run time disable IRQ_TIME_ACCOUNTING on any platforms where RDTSC is slow and this accounting can add overhead. + [x86] unstable: mark the TSC clocksource as unstable, this + marks the TSC unconditionally unstable at bootup and + avoids any further wobbles once the TSC watchdog notices. turbografx.map[2|3]= [HW,JOY] TurboGraFX parallel port interface -- cgit v1.2.3 From 3888ffd0c76110e8f45523e3ede842699a2c6614 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Sun, 17 Sep 2017 18:17:12 +0200 Subject: dt-bindings: iio: accel: add LIS3DHH device bindings Signed-off-by: Lorenzo Bianconi Acked-by: Rob Herring Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/st-sensors.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt index 9cfc82d21792..6f626f73417e 100644 --- a/Documentation/devicetree/bindings/iio/st-sensors.txt +++ b/Documentation/devicetree/bindings/iio/st-sensors.txt @@ -47,6 +47,7 @@ Accelerometers: - st,lng2dm-accel - st,lis3l02dq - st,lis2dw12 +- st,lis3dhh Gyroscopes: - st,l3g4200d-gyro -- cgit v1.2.3 From b6891523fe9915dfa868773db638832454316788 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Tue, 10 Oct 2017 14:14:40 -0700 Subject: dt-bindings: bus: Minimal TI sysc interconnect target module binding MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit With the recently introduced omap clkctrl module binding, we can start moving omap hwmod data to device tree and drivers from arch/arm/mach-omap2. To start doing this, let's introduce a device tree binding for TI sysc interconnect target module hardware. The sysc manages module clocks, idlemodes and interconnect level resets. Each interconnect target module can have one or more child devices connected to it. TI sysc interconnect target module hardware is independent of the interconnect. It is used at least with TI L3 interconnect (Arteris NoC) and TI L4 interconnect (Sonics s3220). The sysc is mostly used for interaction between module and PRCM. It participates in the OCP Disconnect Protocol but other than that is mostly indepenent of the interconnect. As all the features may not be supported for a given sysc module, we need to use device tree configuration for the revision of the interconnect target module. Note that the interconnect target module control registers are always sprinked at varying locations in the unused address space of the first child device IP block. To avoid device tree reg conflicts, the sysc device provides ranges for it's children. For a non-intrusive transition from static hwmod data to using device tree defined TI interconnect target module binding, we can keep things working with static hwmod data if device tree property "ti,hwmods" is specified for the the interconnect target module. Note that additional properties for sysc capabilities will be added later on. For now, we can already use this binding for interconnect target modules that do not have any child device drivers available. This allows us to idle the unused interconnect target modules during init without the need for legacy hwmod platform data for doing it. Cc: Benoît Cousson Cc: Dave Gerlach Cc: Laurent Pinchart Cc: Liam Girdwood Cc: Mark Brown Cc: Mark Rutland Cc: Mauro Carvalho Chehab Cc: Nishanth Menon Cc: Matthijs van Duin Cc: Paul Walmsley Cc: Peter Ujfalusi Cc: Sakari Ailus Cc: Suman Anna Cc: Tero Kristo Cc: Tomi Valkeinen Reviewed-by: Rob Herring Signed-off-by: Tony Lindgren --- Documentation/devicetree/bindings/bus/ti-sysc.txt | 93 +++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 Documentation/devicetree/bindings/bus/ti-sysc.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/bus/ti-sysc.txt b/Documentation/devicetree/bindings/bus/ti-sysc.txt new file mode 100644 index 000000000000..fb1790e39398 --- /dev/null +++ b/Documentation/devicetree/bindings/bus/ti-sysc.txt @@ -0,0 +1,93 @@ +Texas Instruments sysc interconnect target module wrapper binding + +Texas Instruments SoCs can have a generic interconnect target module +hardware for devices connected to various interconnects such as L3 +interconnect (Arteris NoC) and L4 interconnect (Sonics s3220). The sysc +is mostly used for interaction between module and PRCM. It participates +in the OCP Disconnect Protocol but other than that is mostly independent +of the interconnect. + +Each interconnect target module can have one or more devices connected to +it. There is a set of control registers for managing interconnect target +module clocks, idle modes and interconnect level resets for the module. + +These control registers are sprinkled into the unused register address +space of the first child device IP block managed by the interconnect +target module and typically are named REVISION, SYSCONFIG and SYSSTATUS. + +Required standard properties: + +- compatible shall be one of the following generic types: + + "ti,sysc-omap2" + "ti,sysc-omap4" + "ti,sysc-omap4-simple" + + or one of the following derivative types for hardware + needing special workarounds: + + "ti,sysc-omap3430-sr" + "ti,sysc-omap3630-sr" + "ti,sysc-omap4-sr" + "ti,sysc-omap3-sham" + "ti,sysc-omap-aes" + "ti,sysc-mcasp" + "ti,sysc-usb-host-fs" + +- reg shall have register areas implemented for the interconnect + target module in question such as revision, sysc and syss + +- reg-names shall contain the register names implemented for the + interconnect target module in question such as + "rev, "sysc", and "syss" + +- ranges shall contain the interconnect target module IO range + available for one or more child device IP blocks managed + by the interconnect target module, the ranges may include + multiple ranges such as device L4 range for control and + parent L3 range for DMA access + +Optional properties: + +- clocks clock specifier for each name in the clock-names as + specified in the binding documentation for ti-clkctrl, + typically available for all interconnect targets on TI SoCs + based on omap4 except if it's read-only register in hwauto + mode as for example omap4 L4_CFG_CLKCTRL + +- clock-names should contain at least "fck", and optionally also "ick" + depending on the SoC and the interconnect target module + +- ti,hwmods optional TI interconnect module name to use legacy + hwmod platform data + + +Example: Single instance of MUSB controller on omap4 using interconnect ranges +using offsets from l4_cfg second segment (0x4a000000 + 0x80000 = 0x4a0ab000): + + target-module@2b000 { /* 0x4a0ab000, ap 84 12.0 */ + compatible = "ti,sysc-omap2"; + ti,hwmods = "usb_otg_hs"; + reg = <0x2b400 0x4>, + <0x2b404 0x4>, + <0x2b408 0x4>; + reg-names = "rev", "sysc", "syss"; + clocks = <&l3_init_clkctrl OMAP4_USB_OTG_HS_CLKCTRL 0>; + clock-names = "fck"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x2b000 0x1000>; + + usb_otg_hs: otg@0 { + compatible = "ti,omap4-musb"; + reg = <0x0 0x7ff>; + interrupts = , + ; + usb-phy = <&usb2_phy>; + ... + }; + }; + +Note that other SoCs, such as am335x can have multipe child devices. On am335x +there are two MUSB instances, two USB PHY instances, and a single CPPI41 DMA +instance as children of a single interconnet target module. -- cgit v1.2.3 From a157789b78f4e95f5d66f8b564356e396716f67e Mon Sep 17 00:00:00 2001 From: Lars Poeschel Date: Thu, 5 Oct 2017 09:50:02 +0200 Subject: dt-bindings: pinctrl: Move mcp23s08 from gpio The mcp23s08 driver was moved from gpio to pinctrl. This moves it's devicetree binding doc as well. So driver and binding doc are in sync again. Signed-off-by: Lars Poeschel Reviewed-by: Sebastian Reichel Signed-off-by: Linus Walleij --- .../devicetree/bindings/gpio/gpio-mcp23s08.txt | 83 ---------------------- .../bindings/pinctrl/pinctrl-mcp23s08.txt | 83 ++++++++++++++++++++++ 2 files changed, 83 insertions(+), 83 deletions(-) delete mode 100644 Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt create mode 100644 Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt b/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt deleted file mode 100644 index c934106b10aa..000000000000 --- a/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt +++ /dev/null @@ -1,83 +0,0 @@ -Microchip MCP2308/MCP23S08/MCP23017/MCP23S17 driver for -8-/16-bit I/O expander with serial interface (I2C/SPI) - -Required properties: -- compatible : Should be - - "mcp,mcp23s08" (DEPRECATED) for 8 GPIO SPI version - - "mcp,mcp23s17" (DEPRECATED) for 16 GPIO SPI version - - "mcp,mcp23008" (DEPRECATED) for 8 GPIO I2C version or - - "mcp,mcp23017" (DEPRECATED) for 16 GPIO I2C version of the chip - - - "microchip,mcp23s08" for 8 GPIO SPI version - - "microchip,mcp23s17" for 16 GPIO SPI version - - "microchip,mcp23s18" for 16 GPIO SPI version - - "microchip,mcp23008" for 8 GPIO I2C version or - - "microchip,mcp23017" for 16 GPIO I2C version of the chip - NOTE: Do not use the old mcp prefix any more. It is deprecated and will be - removed. -- #gpio-cells : Should be two. - - first cell is the pin number - - second cell is used to specify flags. Flags are currently unused. -- gpio-controller : Marks the device node as a GPIO controller. -- reg : For an address on its bus. I2C uses this a the I2C address of the chip. - SPI uses this to specify the chipselect line which the chip is - connected to. The driver and the SPI variant of the chip support - multiple chips on the same chipselect. Have a look at - microchip,spi-present-mask below. - -Required device specific properties (only for SPI chips): -- mcp,spi-present-mask (DEPRECATED) -- microchip,spi-present-mask : This is a present flag, that makes only sense for SPI - chips - as the name suggests. Multiple SPI chips can share the same - SPI chipselect. Set a bit in bit0-7 in this mask to 1 if there is a - chip connected with the corresponding spi address set. For example if - you have a chip with address 3 connected, you have to set bit3 to 1, - which is 0x08. mcp23s08 chip variant only supports bits 0-3. It is not - possible to mix mcp23s08 and mcp23s17 on the same chipselect. Set at - least one bit to 1 for SPI chips. - NOTE: Do not use the old mcp prefix any more. It is deprecated and will be - removed. -- spi-max-frequency = The maximum frequency this chip is able to handle - -Optional properties: -- #interrupt-cells : Should be two. - - first cell is the pin number - - second cell is used to specify flags. -- interrupt-controller: Marks the device node as a interrupt controller. - -Optional device specific properties: -- microchip,irq-mirror: Sets the mirror flag in the IOCON register. Devices - with two interrupt outputs (these are the devices ending with 17 and - those that have 16 IOs) have two IO banks: IO 0-7 form bank 1 and - IO 8-15 are bank 2. These chips have two different interrupt outputs: - One for bank 1 and another for bank 2. If irq-mirror is set, both - interrupts are generated regardless of the bank that an input change - occurred on. If it is not set, the interrupt are only generated for the - bank they belong to. - On devices with only one interrupt output this property is useless. -- microchip,irq-active-high: Sets the INTPOL flag in the IOCON register. This - configures the IRQ output polarity as active high. - -Example I2C (with interrupt): -gpiom1: gpio@20 { - compatible = "microchip,mcp23017"; - gpio-controller; - #gpio-cells = <2>; - reg = <0x20>; - - interrupt-parent = <&gpio1>; - interrupts = <17 IRQ_TYPE_LEVEL_LOW>; - interrupt-controller; - #interrupt-cells=<2>; - microchip,irq-mirror; -}; - -Example SPI: -gpiom1: gpio@0 { - compatible = "microchip,mcp23s17"; - gpio-controller; - #gpio-cells = <2>; - spi-present-mask = <0x01>; - reg = <0>; - spi-max-frequency = <1000000>; -}; diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt new file mode 100644 index 000000000000..c934106b10aa --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt @@ -0,0 +1,83 @@ +Microchip MCP2308/MCP23S08/MCP23017/MCP23S17 driver for +8-/16-bit I/O expander with serial interface (I2C/SPI) + +Required properties: +- compatible : Should be + - "mcp,mcp23s08" (DEPRECATED) for 8 GPIO SPI version + - "mcp,mcp23s17" (DEPRECATED) for 16 GPIO SPI version + - "mcp,mcp23008" (DEPRECATED) for 8 GPIO I2C version or + - "mcp,mcp23017" (DEPRECATED) for 16 GPIO I2C version of the chip + + - "microchip,mcp23s08" for 8 GPIO SPI version + - "microchip,mcp23s17" for 16 GPIO SPI version + - "microchip,mcp23s18" for 16 GPIO SPI version + - "microchip,mcp23008" for 8 GPIO I2C version or + - "microchip,mcp23017" for 16 GPIO I2C version of the chip + NOTE: Do not use the old mcp prefix any more. It is deprecated and will be + removed. +- #gpio-cells : Should be two. + - first cell is the pin number + - second cell is used to specify flags. Flags are currently unused. +- gpio-controller : Marks the device node as a GPIO controller. +- reg : For an address on its bus. I2C uses this a the I2C address of the chip. + SPI uses this to specify the chipselect line which the chip is + connected to. The driver and the SPI variant of the chip support + multiple chips on the same chipselect. Have a look at + microchip,spi-present-mask below. + +Required device specific properties (only for SPI chips): +- mcp,spi-present-mask (DEPRECATED) +- microchip,spi-present-mask : This is a present flag, that makes only sense for SPI + chips - as the name suggests. Multiple SPI chips can share the same + SPI chipselect. Set a bit in bit0-7 in this mask to 1 if there is a + chip connected with the corresponding spi address set. For example if + you have a chip with address 3 connected, you have to set bit3 to 1, + which is 0x08. mcp23s08 chip variant only supports bits 0-3. It is not + possible to mix mcp23s08 and mcp23s17 on the same chipselect. Set at + least one bit to 1 for SPI chips. + NOTE: Do not use the old mcp prefix any more. It is deprecated and will be + removed. +- spi-max-frequency = The maximum frequency this chip is able to handle + +Optional properties: +- #interrupt-cells : Should be two. + - first cell is the pin number + - second cell is used to specify flags. +- interrupt-controller: Marks the device node as a interrupt controller. + +Optional device specific properties: +- microchip,irq-mirror: Sets the mirror flag in the IOCON register. Devices + with two interrupt outputs (these are the devices ending with 17 and + those that have 16 IOs) have two IO banks: IO 0-7 form bank 1 and + IO 8-15 are bank 2. These chips have two different interrupt outputs: + One for bank 1 and another for bank 2. If irq-mirror is set, both + interrupts are generated regardless of the bank that an input change + occurred on. If it is not set, the interrupt are only generated for the + bank they belong to. + On devices with only one interrupt output this property is useless. +- microchip,irq-active-high: Sets the INTPOL flag in the IOCON register. This + configures the IRQ output polarity as active high. + +Example I2C (with interrupt): +gpiom1: gpio@20 { + compatible = "microchip,mcp23017"; + gpio-controller; + #gpio-cells = <2>; + reg = <0x20>; + + interrupt-parent = <&gpio1>; + interrupts = <17 IRQ_TYPE_LEVEL_LOW>; + interrupt-controller; + #interrupt-cells=<2>; + microchip,irq-mirror; +}; + +Example SPI: +gpiom1: gpio@0 { + compatible = "microchip,mcp23s17"; + gpio-controller; + #gpio-cells = <2>; + spi-present-mask = <0x01>; + reg = <0>; + spi-max-frequency = <1000000>; +}; -- cgit v1.2.3 From e8527b6eb6ffdccc45b58646312cfe42365b74b0 Mon Sep 17 00:00:00 2001 From: Lars Poeschel Date: Mon, 9 Oct 2017 14:03:00 +0200 Subject: dt-bindings: pinctrl: mcp23s08 update binding doc The mcp23s08 driver moved to pinctrl recently. It accepts the bias-pull-up pinctrl property since then. This updates the binding doc to reflect that. Thanks to Sebastian Reichel for the working example. Signed-off-by: Lars Poeschel Signed-off-by: Linus Walleij --- .../bindings/pinctrl/pinctrl-mcp23s08.txt | 58 ++++++++++++++++++++++ 1 file changed, 58 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt index c934106b10aa..b7a0e868ec13 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt @@ -81,3 +81,61 @@ gpiom1: gpio@0 { reg = <0>; spi-max-frequency = <1000000>; }; + +Pull-up configuration +===================== + +If pins are used as output, they can also be configured with pull-ups. This is +done with pinctrl. + +Please refer file +for details of the common pinctrl bindings used by client devices, +including the meaning of the phrase "pin configuration node". + +Optional Pinmux properties: +-------------------------- +Following properties are required if default setting of pins are required +at boot. +- pinctrl-names: A pinctrl state named per . +- pinctrl[0...n]: Properties to contain the phandle for pinctrl states per + . + +The pin configurations are defined as child of the pinctrl states node. Each +sub-node have following properties: + +Required properties: +------------------ +- pins: List of pins. Valid values of pins properties are: + gpio0 ... gpio7 for the devices with 8 GPIO pins and + gpio0 ... gpio15 for the devices with 16 GPIO pins. + +Optional properties: +------------------- +The following optional property is defined in the pinmux DT binding document +. Absence of this property will leave the configuration +in its default state. + bias-pull-up + +Example with pinctrl to pull-up output pins: +gpio21: gpio@21 { + compatible = "microchip,mcp23017"; + gpio-controller; + #gpio-cells = <0x2>; + reg = <0x21>; + interrupt-parent = <&socgpio>; + interrupts = <0x17 0x8>; + interrupt-names = "mcp23017@21 irq"; + interrupt-controller; + #interrupt-cells = <0x2>; + microchip,irq-mirror; + pinctrl-names = "default"; + pinctrl-0 = <&i2cgpio0irq &gpio21pullups>; + + gpio21pullups: pinmux { + pins = "gpio0", "gpio1", "gpio2", "gpio3", + "gpio4", "gpio5", "gpio6", "gpio7", + "gpio8", "gpio9", "gpio10", "gpio11", + "gpio12", "gpio13", "gpio14", "gpio15"; + bias-pull-up; + }; +}; -- cgit v1.2.3 From b889372c843b2a2c4aa776c85bca31636fd38d90 Mon Sep 17 00:00:00 2001 From: Phil Reid Date: Fri, 6 Oct 2017 13:08:06 +0800 Subject: dt-bindings: pinctrl: add mcp23018 to mcp23s08 documentation This adds the compatible string for the mcp23018, which is the i2c variant of the mcp23s18. Signed-off-by: Phil Reid Reviewed-by: Sebastian Reichel Signed-off-by: Linus Walleij --- Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt index b7a0e868ec13..9c451c20dda4 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt @@ -13,6 +13,7 @@ Required properties: - "microchip,mcp23s18" for 16 GPIO SPI version - "microchip,mcp23008" for 8 GPIO I2C version or - "microchip,mcp23017" for 16 GPIO I2C version of the chip + - "microchip,mcp23018" for 16 GPIO I2C version NOTE: Do not use the old mcp prefix any more. It is deprecated and will be removed. - #gpio-cells : Should be two. -- cgit v1.2.3 From 9044070dc6949d853976b01edc80eaca9d09cea1 Mon Sep 17 00:00:00 2001 From: Kevin Wangtao Date: Tue, 10 Oct 2017 20:02:48 +0200 Subject: dt-bindings: Document the hi3660 thermal sensor binding This adds documentation of device tree bindings for the thermal sensor controller of hi3660 SoC. Signed-off-by: Kevin Wangtao Signed-off-by: Daniel Lezcano Acked-by: Rob Herring Signed-off-by: Wei Xu --- Documentation/devicetree/bindings/thermal/hisilicon-thermal.txt | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/thermal/hisilicon-thermal.txt b/Documentation/devicetree/bindings/thermal/hisilicon-thermal.txt index d48fc5280d5a..cef716a236f1 100644 --- a/Documentation/devicetree/bindings/thermal/hisilicon-thermal.txt +++ b/Documentation/devicetree/bindings/thermal/hisilicon-thermal.txt @@ -13,6 +13,7 @@ Example : +for Hi6220: tsensor: tsensor@0,f7030700 { compatible = "hisilicon,tsensor"; reg = <0x0 0xf7030700 0x0 0x1000>; @@ -21,3 +22,11 @@ Example : clock-names = "thermal_clk"; #thermal-sensor-cells = <1>; } + +for Hi3660: + tsensor: tsensor@fff30000 { + compatible = "hisilicon,hi3660-tsensor"; + reg = <0x0 0xfff30000 0x0 0x1000>; + interrupts = ; + #thermal-sensor-cells = <1>; + }; -- cgit v1.2.3 From 007f6c5e6eb45c81ee89368a5f226572ae638831 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 15 Oct 2015 11:22:58 +0200 Subject: cfg80211: support loading regulatory database as firmware file As the current regulatory database is only about 4k big, and already difficult to extend, we decided that overall it would be better to get rid of the complications with CRDA and load the database into the kernel directly, but in a new format that is extensible. The new file format can be extended since it carries a length field on all the structs that need to be extensible. In order to be able to request firmware when the module initializes, move cfg80211 from subsys_initcall() to the later fs_initcall(); the firmware loader is at the same level but linked earlier, so it can be called from there. Otherwise, when both the firmware loader and cfg80211 are built-in, the request will crash the kernel. We also need to be before device_initcall() so that cfg80211 is available for devices when they initialize. Signed-off-by: Johannes Berg --- Documentation/networking/regulatory.txt | 8 + net/wireless/Kconfig | 4 +- net/wireless/core.c | 2 +- net/wireless/reg.c | 294 +++++++++++++++++++++++++++++--- 4 files changed, 284 insertions(+), 24 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/regulatory.txt b/Documentation/networking/regulatory.txt index 7818b5fe448b..46c8d8b1cc66 100644 --- a/Documentation/networking/regulatory.txt +++ b/Documentation/networking/regulatory.txt @@ -19,6 +19,14 @@ core regulatory domain all wireless devices should adhere to. How to get regulatory domains to the kernel ------------------------------------------- +When the regulatory domain is first set up, the kernel will request a +database file (regulatory.db) containing all the regulatory rules. It +will then use that database when it needs to look up the rules for a +given country. + +How to get regulatory domains to the kernel (old CRDA solution) +--------------------------------------------------------------- + Userspace gets a regulatory domain in the kernel by having a userspace agent build it and send it via nl80211. Only expected regulatory domains will be respected by the kernel. diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig index 6c606120abfe..24eec5516649 100644 --- a/net/wireless/Kconfig +++ b/net/wireless/Kconfig @@ -19,6 +19,7 @@ config WEXT_PRIV config CFG80211 tristate "cfg80211 - wireless configuration API" depends on RFKILL || !RFKILL + select FW_LOADER ---help--- cfg80211 is the Linux wireless LAN (802.11) configuration API. Enable this if you have a wireless device. @@ -167,7 +168,8 @@ config CFG80211_CRDA_SUPPORT depends on CFG80211 help You should enable this option unless you know for sure you have no - need for it, for example when using internal regdb (above.) + need for it, for example when using internal regdb (above) or the + database loaded as a firmware file. If unsure, say Y. diff --git a/net/wireless/core.c b/net/wireless/core.c index 7b33e8c366bc..fdde0d98fde1 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -1384,7 +1384,7 @@ out_fail_sysfs: out_fail_pernet: return err; } -subsys_initcall(cfg80211_init); +fs_initcall(cfg80211_init); static void __exit cfg80211_exit(void) { diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 6e94f6934a0e..e9aeb05aaf3e 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -54,6 +54,7 @@ #include #include #include +#include #include #include "core.h" #include "reg.h" @@ -100,7 +101,7 @@ static struct regulatory_request core_request_world = { static struct regulatory_request __rcu *last_request = (void __force __rcu *)&core_request_world; -/* To trigger userspace events */ +/* To trigger userspace events and load firmware */ static struct platform_device *reg_pdev; /* @@ -443,7 +444,6 @@ reg_copy_regd(const struct ieee80211_regdomain *src_regd) return regd; } -#ifdef CONFIG_CFG80211_INTERNAL_REGDB struct reg_regdb_apply_request { struct list_head list; const struct ieee80211_regdomain *regdom; @@ -475,41 +475,44 @@ static void reg_regdb_apply(struct work_struct *work) static DECLARE_WORK(reg_regdb_work, reg_regdb_apply); -static int reg_query_builtin(const char *alpha2) +static int reg_schedule_apply(const struct ieee80211_regdomain *regdom) { - const struct ieee80211_regdomain *regdom = NULL; struct reg_regdb_apply_request *request; - unsigned int i; - - for (i = 0; i < reg_regdb_size; i++) { - if (alpha2_equal(alpha2, reg_regdb[i]->alpha2)) { - regdom = reg_regdb[i]; - break; - } - } - - if (!regdom) - return -ENODATA; request = kzalloc(sizeof(struct reg_regdb_apply_request), GFP_KERNEL); - if (!request) - return -ENOMEM; - - request->regdom = reg_copy_regd(regdom); - if (IS_ERR_OR_NULL(request->regdom)) { - kfree(request); + if (!request) { + kfree(regdom); return -ENOMEM; } + request->regdom = regdom; + mutex_lock(®_regdb_apply_mutex); list_add_tail(&request->list, ®_regdb_apply_list); mutex_unlock(®_regdb_apply_mutex); schedule_work(®_regdb_work); - return 0; } +#ifdef CONFIG_CFG80211_INTERNAL_REGDB +static int reg_query_builtin(const char *alpha2) +{ + const struct ieee80211_regdomain *regdom = NULL; + unsigned int i; + + for (i = 0; i < reg_regdb_size; i++) { + if (alpha2_equal(alpha2, reg_regdb[i]->alpha2)) { + regdom = reg_copy_regd(reg_regdb[i]); + break; + } + } + if (!regdom) + return -ENODATA; + + return reg_schedule_apply(regdom); +} + /* Feel free to add any other sanity checks here */ static void reg_regdb_size_check(void) { @@ -599,12 +602,256 @@ static inline int call_crda(const char *alpha2) } #endif /* CONFIG_CFG80211_CRDA_SUPPORT */ +/* code to directly load a firmware database through request_firmware */ +static const struct fwdb_header *regdb; + +struct fwdb_country { + u8 alpha2[2]; + __be16 coll_ptr; + /* this struct cannot be extended */ +} __packed __aligned(4); + +struct fwdb_collection { + u8 len; + u8 n_rules; + u8 dfs_region; + /* no optional data yet */ + /* aligned to 2, then followed by __be16 array of rule pointers */ +} __packed __aligned(4); + +enum fwdb_flags { + FWDB_FLAG_NO_OFDM = BIT(0), + FWDB_FLAG_NO_OUTDOOR = BIT(1), + FWDB_FLAG_DFS = BIT(2), + FWDB_FLAG_NO_IR = BIT(3), + FWDB_FLAG_AUTO_BW = BIT(4), +}; + +struct fwdb_rule { + u8 len; + u8 flags; + __be16 max_eirp; + __be32 start, end, max_bw; + /* start of optional data */ + __be16 cac_timeout; +} __packed __aligned(4); + +#define FWDB_MAGIC 0x52474442 +#define FWDB_VERSION 20 + +struct fwdb_header { + __be32 magic; + __be32 version; + struct fwdb_country country[]; +} __packed __aligned(4); + +static bool valid_rule(const u8 *data, unsigned int size, u16 rule_ptr) +{ + struct fwdb_rule *rule = (void *)(data + (rule_ptr << 2)); + + if ((u8 *)rule + sizeof(rule->len) > data + size) + return false; + + /* mandatory fields */ + if (rule->len < offsetofend(struct fwdb_rule, max_bw)) + return false; + + return true; +} + +static bool valid_country(const u8 *data, unsigned int size, + const struct fwdb_country *country) +{ + unsigned int ptr = be16_to_cpu(country->coll_ptr) << 2; + struct fwdb_collection *coll = (void *)(data + ptr); + __be16 *rules_ptr; + unsigned int i; + + /* make sure we can read len/n_rules */ + if ((u8 *)coll + offsetofend(typeof(*coll), n_rules) > data + size) + return false; + + /* make sure base struct and all rules fit */ + if ((u8 *)coll + ALIGN(coll->len, 2) + + (coll->n_rules * 2) > data + size) + return false; + + /* mandatory fields must exist */ + if (coll->len < offsetofend(struct fwdb_collection, dfs_region)) + return false; + + rules_ptr = (void *)((u8 *)coll + ALIGN(coll->len, 2)); + + for (i = 0; i < coll->n_rules; i++) { + u16 rule_ptr = be16_to_cpu(rules_ptr[i]); + + if (!valid_rule(data, size, rule_ptr)) + return false; + } + + return true; +} + +static bool valid_regdb(const u8 *data, unsigned int size) +{ + const struct fwdb_header *hdr = (void *)data; + const struct fwdb_country *country; + + if (size < sizeof(*hdr)) + return false; + + if (hdr->magic != cpu_to_be32(FWDB_MAGIC)) + return false; + + if (hdr->version != cpu_to_be32(FWDB_VERSION)) + return false; + + country = &hdr->country[0]; + while ((u8 *)(country + 1) <= data + size) { + if (!country->coll_ptr) + break; + if (!valid_country(data, size, country)) + return false; + country++; + } + + return true; +} + +static int regdb_query_country(const struct fwdb_header *db, + const struct fwdb_country *country) +{ + unsigned int ptr = be16_to_cpu(country->coll_ptr) << 2; + struct fwdb_collection *coll = (void *)((u8 *)db + ptr); + struct ieee80211_regdomain *regdom; + unsigned int size_of_regd; + unsigned int i; + + size_of_regd = + sizeof(struct ieee80211_regdomain) + + coll->n_rules * sizeof(struct ieee80211_reg_rule); + + regdom = kzalloc(size_of_regd, GFP_KERNEL); + if (!regdom) + return -ENOMEM; + + regdom->n_reg_rules = coll->n_rules; + regdom->alpha2[0] = country->alpha2[0]; + regdom->alpha2[1] = country->alpha2[1]; + regdom->dfs_region = coll->dfs_region; + + for (i = 0; i < regdom->n_reg_rules; i++) { + __be16 *rules_ptr = (void *)((u8 *)coll + ALIGN(coll->len, 2)); + unsigned int rule_ptr = be16_to_cpu(rules_ptr[i]) << 2; + struct fwdb_rule *rule = (void *)((u8 *)db + rule_ptr); + struct ieee80211_reg_rule *rrule = ®dom->reg_rules[i]; + + rrule->freq_range.start_freq_khz = be32_to_cpu(rule->start); + rrule->freq_range.end_freq_khz = be32_to_cpu(rule->end); + rrule->freq_range.max_bandwidth_khz = be32_to_cpu(rule->max_bw); + + rrule->power_rule.max_antenna_gain = 0; + rrule->power_rule.max_eirp = be16_to_cpu(rule->max_eirp); + + rrule->flags = 0; + if (rule->flags & FWDB_FLAG_NO_OFDM) + rrule->flags |= NL80211_RRF_NO_OFDM; + if (rule->flags & FWDB_FLAG_NO_OUTDOOR) + rrule->flags |= NL80211_RRF_NO_OUTDOOR; + if (rule->flags & FWDB_FLAG_DFS) + rrule->flags |= NL80211_RRF_DFS; + if (rule->flags & FWDB_FLAG_NO_IR) + rrule->flags |= NL80211_RRF_NO_IR; + if (rule->flags & FWDB_FLAG_AUTO_BW) + rrule->flags |= NL80211_RRF_AUTO_BW; + + rrule->dfs_cac_ms = 0; + + /* handle optional data */ + if (rule->len >= offsetofend(struct fwdb_rule, cac_timeout)) + rrule->dfs_cac_ms = + 1000 * be16_to_cpu(rule->cac_timeout); + } + + return reg_schedule_apply(regdom); +} + +static int query_regdb(const char *alpha2) +{ + const struct fwdb_header *hdr = regdb; + const struct fwdb_country *country; + + if (IS_ERR(regdb)) + return PTR_ERR(regdb); + + country = &hdr->country[0]; + while (country->coll_ptr) { + if (alpha2_equal(alpha2, country->alpha2)) + return regdb_query_country(regdb, country); + country++; + } + + return -ENODATA; +} + +static void regdb_fw_cb(const struct firmware *fw, void *context) +{ + void *db; + + if (!fw) { + pr_info("failed to load regulatory.db\n"); + regdb = ERR_PTR(-ENODATA); + goto restore; + } + + if (!valid_regdb(fw->data, fw->size)) { + pr_info("loaded regulatory.db is malformed\n"); + release_firmware(fw); + regdb = ERR_PTR(-EINVAL); + goto restore; + } + + db = kmemdup(fw->data, fw->size, GFP_KERNEL); + release_firmware(fw); + + if (!db) + goto restore; + regdb = db; + + if (query_regdb(context)) + goto restore; + goto free; + restore: + rtnl_lock(); + restore_regulatory_settings(true); + rtnl_unlock(); + free: + kfree(context); +} + +static int query_regdb_file(const char *alpha2) +{ + if (regdb) + return query_regdb(alpha2); + + alpha2 = kmemdup(alpha2, 2, GFP_KERNEL); + if (!alpha2) + return -ENOMEM; + + return request_firmware_nowait(THIS_MODULE, true, "regulatory.db", + ®_pdev->dev, GFP_KERNEL, + (void *)alpha2, regdb_fw_cb); +} + static bool reg_query_database(struct regulatory_request *request) { /* query internal regulatory database (if it exists) */ if (reg_query_builtin(request->alpha2) == 0) return true; + if (query_regdb_file(request->alpha2) == 0) + return true; + if (call_crda(request->alpha2) == 0) return true; @@ -3360,4 +3607,7 @@ void regulatory_exit(void) list_del(®_request->list); kfree(reg_request); } + + if (!IS_ERR_OR_NULL(regdb)) + kfree(regdb); } -- cgit v1.2.3 From c8c240e284b3d821011b4f680b3eaa99569b3756 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 15 Oct 2015 14:35:41 +0200 Subject: cfg80211: reg: remove support for built-in regdb Parsing and building C structures from a regdb is no longer needed since the "firmware" file (regulatory.db) can be linked into the kernel image to achieve the same effect. Signed-off-by: Johannes Berg --- Documentation/networking/regulatory.txt | 22 +---- net/wireless/.gitignore | 1 - net/wireless/Kconfig | 24 +---- net/wireless/Makefile | 6 -- net/wireless/db.txt | 17 ---- net/wireless/genregdb.awk | 158 -------------------------------- net/wireless/reg.c | 39 -------- net/wireless/regdb.h | 23 ----- 8 files changed, 3 insertions(+), 287 deletions(-) delete mode 100644 net/wireless/.gitignore delete mode 100644 net/wireless/db.txt delete mode 100644 net/wireless/genregdb.awk delete mode 100644 net/wireless/regdb.h (limited to 'Documentation') diff --git a/Documentation/networking/regulatory.txt b/Documentation/networking/regulatory.txt index 46c8d8b1cc66..381e5b23d61d 100644 --- a/Documentation/networking/regulatory.txt +++ b/Documentation/networking/regulatory.txt @@ -200,23 +200,5 @@ Then in some part of your code after your wiphy has been registered: Statically compiled regulatory database --------------------------------------- -In most situations the userland solution using CRDA as described -above is the preferred solution. However in some cases a set of -rules built into the kernel itself may be desirable. To account -for this situation, a configuration option has been provided -(i.e. CONFIG_CFG80211_INTERNAL_REGDB). With this option enabled, -the wireless database information contained in net/wireless/db.txt is -used to generate a data structure encoded in net/wireless/regdb.c. -That option also enables code in net/wireless/reg.c which queries -the data in regdb.c as an alternative to using CRDA. - -The file net/wireless/db.txt should be kept up-to-date with the db.txt -file available in the git repository here: - - git://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git - -Again, most users in most situations should be using the CRDA package -provided with their distribution, and in most other situations users -should be building and using CRDA on their own rather than using -this option. If you are not absolutely sure that you should be using -CONFIG_CFG80211_INTERNAL_REGDB then _DO_NOT_USE_IT_. +When a database should be fixed into the kernel, it can be provided as a +firmware file at build time that is then linked into the kernel. diff --git a/net/wireless/.gitignore b/net/wireless/.gitignore deleted file mode 100644 index c33451b896d9..000000000000 --- a/net/wireless/.gitignore +++ /dev/null @@ -1 +0,0 @@ -regdb.c diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig index 24eec5516649..f050030055c5 100644 --- a/net/wireless/Kconfig +++ b/net/wireless/Kconfig @@ -140,30 +140,8 @@ config CFG80211_DEBUGFS If unsure, say N. -config CFG80211_INTERNAL_REGDB - bool "use statically compiled regulatory rules database" if EXPERT - default n - depends on CFG80211 - ---help--- - This option generates an internal data structure representing - the wireless regulatory rules described in net/wireless/db.txt - and includes code to query that database. This is an alternative - to using CRDA for defining regulatory rules for the kernel. - - Using this option requires some parsing of the db.txt at build time, - the parser will be upkept with the latest wireless-regdb updates but - older wireless-regdb formats will be ignored. The parser may later - be replaced to avoid issues with conflicts on versions of - wireless-regdb. - - For details see: - - http://wireless.kernel.org/en/developers/Regulatory - - Most distributions have a CRDA package. So if unsure, say N. - config CFG80211_CRDA_SUPPORT - bool "support CRDA" if CFG80211_INTERNAL_REGDB + bool "support CRDA" if EXPERT default y depends on CFG80211 help diff --git a/net/wireless/Makefile b/net/wireless/Makefile index d06e5015751a..5f20dac5d8c6 100644 --- a/net/wireless/Makefile +++ b/net/wireless/Makefile @@ -14,11 +14,5 @@ cfg80211-y += mlme.o ibss.o sme.o chan.o ethtool.o mesh.o ap.o trace.o ocb.o cfg80211-$(CONFIG_OF) += of.o cfg80211-$(CONFIG_CFG80211_DEBUGFS) += debugfs.o cfg80211-$(CONFIG_CFG80211_WEXT) += wext-compat.o wext-sme.o -cfg80211-$(CONFIG_CFG80211_INTERNAL_REGDB) += regdb.o CFLAGS_trace.o := -I$(src) - -$(obj)/regdb.c: $(src)/db.txt $(src)/genregdb.awk - @$(AWK) -f $(srctree)/$(src)/genregdb.awk < $< > $@ - -clean-files := regdb.c diff --git a/net/wireless/db.txt b/net/wireless/db.txt deleted file mode 100644 index a2fc3a09ccdc..000000000000 --- a/net/wireless/db.txt +++ /dev/null @@ -1,17 +0,0 @@ -# -# This file is a placeholder to prevent accidental build breakage if someone -# enables CONFIG_CFG80211_INTERNAL_REGDB. Almost no one actually needs to -# enable that build option. -# -# You should be using CRDA instead. It is even better if you use the CRDA -# package provided by your distribution, since they will probably keep it -# up-to-date on your behalf. -# -# If you _really_ intend to use CONFIG_CFG80211_INTERNAL_REGDB then you will -# need to replace this file with one containing appropriately formatted -# regulatory rules that cover the regulatory domains you will be using. Your -# best option is to extract the db.txt file from the wireless-regdb git -# repository: -# -# git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-regdb.git -# diff --git a/net/wireless/genregdb.awk b/net/wireless/genregdb.awk deleted file mode 100644 index baf2426b555a..000000000000 --- a/net/wireless/genregdb.awk +++ /dev/null @@ -1,158 +0,0 @@ -#!/usr/bin/awk -f -# -# genregdb.awk -- generate regdb.c from db.txt -# -# Actually, it reads from stdin (presumed to be db.txt) and writes -# to stdout (presumed to be regdb.c), but close enough... -# -# Copyright 2009 John W. Linville -# -# Permission to use, copy, modify, and/or distribute this software for any -# purpose with or without fee is hereby granted, provided that the above -# copyright notice and this permission notice appear in all copies. -# -# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - -BEGIN { - active = 0 - rules = 0; - print "/*" - print " * DO NOT EDIT -- file generated from data in db.txt" - print " */" - print "" - print "#include " - print "#include " - print "#include \"regdb.h\"" - print "" - regdb = "const struct ieee80211_regdomain *reg_regdb[] = {\n" -} - -function parse_country_head() { - country=$2 - sub(/:/, "", country) - printf "static const struct ieee80211_regdomain regdom_%s = {\n", country - printf "\t.alpha2 = \"%s\",\n", country - if ($NF ~ /DFS-ETSI/) - printf "\t.dfs_region = NL80211_DFS_ETSI,\n" - else if ($NF ~ /DFS-FCC/) - printf "\t.dfs_region = NL80211_DFS_FCC,\n" - else if ($NF ~ /DFS-JP/) - printf "\t.dfs_region = NL80211_DFS_JP,\n" - printf "\t.reg_rules = {\n" - active = 1 - regdb = regdb "\t®dom_" country ",\n" -} - -function parse_reg_rule() -{ - flag_starts_at = 7 - - start = $1 - sub(/\(/, "", start) - end = $3 - bw = $5 - sub(/\),/, "", bw) - gain = 0 - power = $6 - # power might be in mW... - units = $7 - dfs_cac = 0 - - sub(/\(/, "", power) - sub(/\),/, "", power) - sub(/\),/, "", units) - sub(/\)/, "", units) - - if (units == "mW") { - flag_starts_at = 8 - power = 10 * log(power)/log(10) - if ($8 ~ /[[:digit:]]/) { - flag_starts_at = 9 - dfs_cac = $8 - } - } else { - if ($7 ~ /[[:digit:]]/) { - flag_starts_at = 8 - dfs_cac = $7 - } - } - sub(/\(/, "", dfs_cac) - sub(/\),/, "", dfs_cac) - flagstr = "" - for (i=flag_starts_at; i<=NF; i++) - flagstr = flagstr $i - split(flagstr, flagarray, ",") - flags = "" - for (arg in flagarray) { - if (flagarray[arg] == "NO-OFDM") { - flags = flags "\n\t\t\tNL80211_RRF_NO_OFDM | " - } else if (flagarray[arg] == "NO-CCK") { - flags = flags "\n\t\t\tNL80211_RRF_NO_CCK | " - } else if (flagarray[arg] == "NO-INDOOR") { - flags = flags "\n\t\t\tNL80211_RRF_NO_INDOOR | " - } else if (flagarray[arg] == "NO-OUTDOOR") { - flags = flags "\n\t\t\tNL80211_RRF_NO_OUTDOOR | " - } else if (flagarray[arg] == "DFS") { - flags = flags "\n\t\t\tNL80211_RRF_DFS | " - } else if (flagarray[arg] == "PTP-ONLY") { - flags = flags "\n\t\t\tNL80211_RRF_PTP_ONLY | " - } else if (flagarray[arg] == "PTMP-ONLY") { - flags = flags "\n\t\t\tNL80211_RRF_PTMP_ONLY | " - } else if (flagarray[arg] == "PASSIVE-SCAN") { - flags = flags "\n\t\t\tNL80211_RRF_NO_IR | " - } else if (flagarray[arg] == "NO-IBSS") { - flags = flags "\n\t\t\tNL80211_RRF_NO_IR | " - } else if (flagarray[arg] == "NO-IR") { - flags = flags "\n\t\t\tNL80211_RRF_NO_IR | " - } else if (flagarray[arg] == "AUTO-BW") { - flags = flags "\n\t\t\tNL80211_RRF_AUTO_BW | " - } - - } - flags = flags "0" - printf "\t\tREG_RULE_EXT(%d, %d, %d, %d, %.0f, %d, %s),\n", start, end, bw, gain, power, dfs_cac, flags - rules++ -} - -function print_tail_country() -{ - active = 0 - printf "\t},\n" - printf "\t.n_reg_rules = %d\n", rules - printf "};\n\n" - rules = 0; -} - -/^[ \t]*#/ { - # Ignore -} - -!active && /^[ \t]*$/ { - # Ignore -} - -!active && /country/ { - parse_country_head() -} - -active && /^[ \t]*\(/ { - parse_reg_rule() -} - -active && /^[ \t]*$/ { - print_tail_country() -} - -END { - if (active) - print_tail_country() - print regdb "};" - print "" - print "int reg_regdb_size = ARRAY_SIZE(reg_regdb);" -} diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 180addda52af..ebf8267ffbc9 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -59,7 +59,6 @@ #include "core.h" #include "reg.h" #include "rdev-ops.h" -#include "regdb.h" #include "nl80211.h" /* @@ -495,38 +494,6 @@ static int reg_schedule_apply(const struct ieee80211_regdomain *regdom) return 0; } -#ifdef CONFIG_CFG80211_INTERNAL_REGDB -static int reg_query_builtin(const char *alpha2) -{ - const struct ieee80211_regdomain *regdom = NULL; - unsigned int i; - - for (i = 0; i < reg_regdb_size; i++) { - if (alpha2_equal(alpha2, reg_regdb[i]->alpha2)) { - regdom = reg_copy_regd(reg_regdb[i]); - break; - } - } - if (!regdom) - return -ENODATA; - - return reg_schedule_apply(regdom); -} - -/* Feel free to add any other sanity checks here */ -static void reg_regdb_size_check(void) -{ - /* We should ideally BUILD_BUG_ON() but then random builds would fail */ - WARN_ONCE(!reg_regdb_size, "db.txt is empty, you should update it..."); -} -#else -static inline void reg_regdb_size_check(void) {} -static inline int reg_query_builtin(const char *alpha2) -{ - return -ENODATA; -} -#endif /* CONFIG_CFG80211_INTERNAL_REGDB */ - #ifdef CONFIG_CFG80211_CRDA_SUPPORT /* Max number of consecutive attempts to communicate with CRDA */ #define REG_MAX_CRDA_TIMEOUTS 10 @@ -885,10 +852,6 @@ int reg_reload_regdb(void) static bool reg_query_database(struct regulatory_request *request) { - /* query internal regulatory database (if it exists) */ - if (reg_query_builtin(request->alpha2) == 0) - return true; - if (query_regdb_file(request->alpha2) == 0) return true; @@ -3580,8 +3543,6 @@ int __init regulatory_init(void) spin_lock_init(®_pending_beacons_lock); spin_lock_init(®_indoor_lock); - reg_regdb_size_check(); - rcu_assign_pointer(cfg80211_regdomain, cfg80211_world_regdom); user_alpha2[0] = '9'; diff --git a/net/wireless/regdb.h b/net/wireless/regdb.h deleted file mode 100644 index 3279cfcefb0c..000000000000 --- a/net/wireless/regdb.h +++ /dev/null @@ -1,23 +0,0 @@ -#ifndef __REGDB_H__ -#define __REGDB_H__ - -/* - * Copyright 2009 John W. Linville - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -extern const struct ieee80211_regdomain *reg_regdb[]; -extern int reg_regdb_size; - -#endif /* __REGDB_H__ */ -- cgit v1.2.3 From eeb2d80d502af28e5660ff4bbe00f90ceb82c2db Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Thu, 5 Oct 2017 16:24:03 -0700 Subject: ACPI / LPIT: Add Low Power Idle Table (LPIT) support Add functionality to read LPIT table, which provides: - Sysfs interface to read residency counters via /sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us /sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us Here the count "low_power_idle_cpu_residency_us" shows the time spent by CPU package in low power state. This is read via MSR interface, which points to MSR for PKG C10. Here the count "low_power_idle_system_residency_us" show the count the system was in low power state. This is read via MMIO interface. This is mapped to SLP_S0 residency on modern Intel systems. This residency is achieved only when CPU is in PKG C10 and all functional blocks are in low power state. It is possible that none of the above counters present or anyone of the counter present or all counters present. For example: On my Kabylake system both of the above counters present. After suspend to idle these counts updated and prints: 6916179 6998564 This counter can be read by tools like turbostat to display. Or it can be used to debug, if modern systems are reaching desired low power state. - Provides an interface to read residency counter memory address This address can be used to get the base address of PMC memory mapped IO. This is utilized by intel_pmc_core driver to print more debug information. In addition, to avoid code duplication to read iomem, removed the read of iomem from acpi_os_read_memory() in osl.c and made a common function acpi_os_read_iomem(). This new function is used for reading iomem in in both osl.c and acpi_lpit.c. Link: http://www.uefi.org/sites/default/files/resources/Intel_ACPI_Low_Power_S0_Idle.pdf Signed-off-by: Srinivas Pandruvada Signed-off-by: Rafael J. Wysocki --- Documentation/acpi/lpit.txt | 25 +++++++ drivers/acpi/Kconfig | 5 ++ drivers/acpi/Makefile | 1 + drivers/acpi/acpi_lpit.c | 162 ++++++++++++++++++++++++++++++++++++++++++++ drivers/acpi/internal.h | 6 ++ drivers/acpi/osl.c | 42 +++++++----- drivers/acpi/scan.c | 1 + include/acpi/acpiosxf.h | 2 + include/linux/acpi.h | 9 +++ 9 files changed, 237 insertions(+), 16 deletions(-) create mode 100644 Documentation/acpi/lpit.txt create mode 100644 drivers/acpi/acpi_lpit.c (limited to 'Documentation') diff --git a/Documentation/acpi/lpit.txt b/Documentation/acpi/lpit.txt new file mode 100644 index 000000000000..b426398d2e97 --- /dev/null +++ b/Documentation/acpi/lpit.txt @@ -0,0 +1,25 @@ +To enumerate platform Low Power Idle states, Intel platforms are using +“Low Power Idle Table” (LPIT). More details about this table can be +downloaded from: +http://www.uefi.org/sites/default/files/resources/Intel_ACPI_Low_Power_S0_Idle.pdf + +Residencies for each low power state can be read via FFH +(Function fixed hardware) or a memory mapped interface. + +On platforms supporting S0ix sleep states, there can be two types of +residencies: +- CPU PKG C10 (Read via FFH interface) +- Platform Controller Hub (PCH) SLP_S0 (Read via memory mapped interface) + +The following attributes are added dynamically to the cpuidle +sysfs attribute group: + /sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us + /sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us + +The "low_power_idle_cpu_residency_us" attribute shows time spent +by the CPU package in PKG C10 + +The "low_power_idle_system_residency_us" attribute shows SLP_S0 +residency, or system time spent with the SLP_S0# signal asserted. +This is the lowest possible system power state, achieved only when CPU is in +PKG C10 and all functional blocks in PCH are in a low power state. diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 1ce52f84dc23..4bfef0f78cde 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -80,6 +80,11 @@ endif config ACPI_SPCR_TABLE bool +config ACPI_LPIT + bool + depends on X86_64 + default y + config ACPI_SLEEP bool depends on SUSPEND || HIBERNATION diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 90265ab4437a..6a19bd7aba21 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -56,6 +56,7 @@ acpi-$(CONFIG_DEBUG_FS) += debugfs.o acpi-$(CONFIG_ACPI_NUMA) += numa.o acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o acpi-y += acpi_lpat.o +acpi-$(CONFIG_ACPI_LPIT) += acpi_lpit.o acpi-$(CONFIG_ACPI_GENERIC_GSI) += irq.o acpi-$(CONFIG_ACPI_WATCHDOG) += acpi_watchdog.o diff --git a/drivers/acpi/acpi_lpit.c b/drivers/acpi/acpi_lpit.c new file mode 100644 index 000000000000..e94e478dd18b --- /dev/null +++ b/drivers/acpi/acpi_lpit.c @@ -0,0 +1,162 @@ + +/* + * acpi_lpit.c - LPIT table processing functions + * + * Copyright (C) 2017 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version + * 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include + +struct lpit_residency_info { + struct acpi_generic_address gaddr; + u64 frequency; + void __iomem *iomem_addr; +}; + +/* Storage for an memory mapped and FFH based entries */ +static struct lpit_residency_info residency_info_mem; +static struct lpit_residency_info residency_info_ffh; + +static int lpit_read_residency_counter_us(u64 *counter, bool io_mem) +{ + int err; + + if (io_mem) { + u64 count = 0; + int error; + + error = acpi_os_read_iomem(residency_info_mem.iomem_addr, &count, + residency_info_mem.gaddr.bit_width); + if (error) + return error; + + *counter = div64_u64(count * 1000000ULL, residency_info_mem.frequency); + return 0; + } + + err = rdmsrl_safe(residency_info_ffh.gaddr.address, counter); + if (!err) { + u64 mask = GENMASK_ULL(residency_info_ffh.gaddr.bit_offset + + residency_info_ffh.gaddr. bit_width - 1, + residency_info_ffh.gaddr.bit_offset); + + *counter &= mask; + *counter >>= residency_info_ffh.gaddr.bit_offset; + *counter = div64_u64(*counter * 1000000ULL, residency_info_ffh.frequency); + return 0; + } + + return -ENODATA; +} + +static ssize_t low_power_idle_system_residency_us_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u64 counter; + int ret; + + ret = lpit_read_residency_counter_us(&counter, true); + if (ret) + return ret; + + return sprintf(buf, "%llu\n", counter); +} +static DEVICE_ATTR_RO(low_power_idle_system_residency_us); + +static ssize_t low_power_idle_cpu_residency_us_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + u64 counter; + int ret; + + ret = lpit_read_residency_counter_us(&counter, false); + if (ret) + return ret; + + return sprintf(buf, "%llu\n", counter); +} +static DEVICE_ATTR_RO(low_power_idle_cpu_residency_us); + +int lpit_read_residency_count_address(u64 *address) +{ + if (!residency_info_mem.gaddr.address) + return -EINVAL; + + *address = residency_info_mem.gaddr.address; + + return 0; +} + +static void lpit_update_residency(struct lpit_residency_info *info, + struct acpi_lpit_native *lpit_native) +{ + info->frequency = lpit_native->counter_frequency ? + lpit_native->counter_frequency : tsc_khz * 1000; + if (!info->frequency) + info->frequency = 1; + + info->gaddr = lpit_native->residency_counter; + if (info->gaddr.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { + info->iomem_addr = ioremap_nocache(info->gaddr.address, + info->gaddr.bit_width / 8); + if (!info->iomem_addr) + return; + + /* Silently fail, if cpuidle attribute group is not present */ + sysfs_add_file_to_group(&cpu_subsys.dev_root->kobj, + &dev_attr_low_power_idle_system_residency_us.attr, + "cpuidle"); + } else if (info->gaddr.space_id == ACPI_ADR_SPACE_FIXED_HARDWARE) { + /* Silently fail, if cpuidle attribute group is not present */ + sysfs_add_file_to_group(&cpu_subsys.dev_root->kobj, + &dev_attr_low_power_idle_cpu_residency_us.attr, + "cpuidle"); + } +} + +static void lpit_process(u64 begin, u64 end) +{ + while (begin + sizeof(struct acpi_lpit_native) < end) { + struct acpi_lpit_native *lpit_native = (struct acpi_lpit_native *)begin; + + if (!lpit_native->header.type && !lpit_native->header.flags) { + if (lpit_native->residency_counter.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY && + !residency_info_mem.gaddr.address) { + lpit_update_residency(&residency_info_mem, lpit_native); + } else if (lpit_native->residency_counter.space_id == ACPI_ADR_SPACE_FIXED_HARDWARE && + !residency_info_ffh.gaddr.address) { + lpit_update_residency(&residency_info_ffh, lpit_native); + } + } + begin += lpit_native->header.length; + } +} + +void acpi_init_lpit(void) +{ + acpi_status status; + u64 lpit_begin; + struct acpi_table_lpit *lpit; + + status = acpi_get_table(ACPI_SIG_LPIT, 0, (struct acpi_table_header **)&lpit); + + if (ACPI_FAILURE(status)) + return; + + lpit_begin = (u64)lpit + sizeof(*lpit); + lpit_process(lpit_begin, lpit_begin + lpit->header.length); +} diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 4361c4415b4f..fc8c43e76707 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -248,4 +248,10 @@ void acpi_watchdog_init(void); static inline void acpi_watchdog_init(void) {} #endif +#ifdef CONFIG_ACPI_LPIT +void acpi_init_lpit(void); +#else +static inline void acpi_init_lpit(void) { } +#endif + #endif /* _ACPI_INTERNAL_H_ */ diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index db78d353bab1..3bb46cb24a99 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -663,6 +663,29 @@ acpi_status acpi_os_write_port(acpi_io_address port, u32 value, u32 width) EXPORT_SYMBOL(acpi_os_write_port); +int acpi_os_read_iomem(void __iomem *virt_addr, u64 *value, u32 width) +{ + + switch (width) { + case 8: + *(u8 *) value = readb(virt_addr); + break; + case 16: + *(u16 *) value = readw(virt_addr); + break; + case 32: + *(u32 *) value = readl(virt_addr); + break; + case 64: + *(u64 *) value = readq(virt_addr); + break; + default: + return -EINVAL; + } + + return 0; +} + acpi_status acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width) { @@ -670,6 +693,7 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width) unsigned int size = width / 8; bool unmap = false; u64 dummy; + int error; rcu_read_lock(); virt_addr = acpi_map_vaddr_lookup(phys_addr, size); @@ -684,22 +708,8 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width) if (!value) value = &dummy; - switch (width) { - case 8: - *(u8 *) value = readb(virt_addr); - break; - case 16: - *(u16 *) value = readw(virt_addr); - break; - case 32: - *(u32 *) value = readl(virt_addr); - break; - case 64: - *(u64 *) value = readq(virt_addr); - break; - default: - BUG(); - } + error = acpi_os_read_iomem(virt_addr, value, width); + BUG_ON(error); if (unmap) iounmap(virt_addr); diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 602f8ff212f2..81367edc8a10 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -2122,6 +2122,7 @@ int __init acpi_scan_init(void) acpi_int340x_thermal_init(); acpi_amba_init(); acpi_watchdog_init(); + acpi_init_lpit(); acpi_scan_add_handler(&generic_device_handler); diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h index c66eb8ffa454..d5c0f5153c4e 100644 --- a/include/acpi/acpiosxf.h +++ b/include/acpi/acpiosxf.h @@ -287,6 +287,8 @@ acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width); /* * Platform and hardware-independent physical memory interfaces */ +int acpi_os_read_iomem(void __iomem *virt_addr, u64 *value, u32 width); + #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_memory acpi_status acpi_os_read_memory(acpi_physical_address address, u64 *value, u32 width); diff --git a/include/linux/acpi.h b/include/linux/acpi.h index d18c92d4ba19..2b1738f840ab 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -1248,4 +1248,13 @@ int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res) } #endif +#ifdef CONFIG_ACPI_LPIT +int lpit_read_residency_count_address(u64 *address); +#else +static inline int lpit_read_residency_count_address(u64 *address) +{ + return -EINVAL; +} +#endif + #endif /*_LINUX_ACPI_H*/ -- cgit v1.2.3 From f5e035f8694c3bdddc66ea46ecda965ee6853718 Mon Sep 17 00:00:00 2001 From: Suzuki K Poulose Date: Wed, 11 Oct 2017 14:01:02 +0100 Subject: arm64: Expose support for optional ARMv8-A features ARMv8-A adds a few optional features for ARMv8.2 and ARMv8.3. Expose them to the userspace via HWCAPs and mrs emulation. SHA2-512 - Instruction support for SHA512 Hash algorithm (e.g SHA512H, SHA512H2, SHA512U0, SHA512SU1) SHA3 - SHA3 crypto instructions (EOR3, RAX1, XAR, BCAX). SM3 - Instruction support for Chinese cryptography algorithm SM3 SM4 - Instruction support for Chinese cryptography algorithm SM4 DP - Dot Product instructions (UDOT, SDOT). Cc: Will Deacon Cc: Mark Rutland Cc: Dave Martin Cc: Marc Zyngier Reviewed-by: Catalin Marinas Signed-off-by: Suzuki K Poulose Signed-off-by: Will Deacon --- Documentation/arm64/cpu-feature-registers.txt | 12 +++++++++++- arch/arm64/include/asm/sysreg.h | 4 ++++ arch/arm64/include/uapi/asm/hwcap.h | 5 +++++ arch/arm64/kernel/cpufeature.c | 9 +++++++++ arch/arm64/kernel/cpuinfo.c | 5 +++++ 5 files changed, 34 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/arm64/cpu-feature-registers.txt b/Documentation/arm64/cpu-feature-registers.txt index dad411d635d8..011ddfc1e570 100644 --- a/Documentation/arm64/cpu-feature-registers.txt +++ b/Documentation/arm64/cpu-feature-registers.txt @@ -110,10 +110,20 @@ infrastructure: x--------------------------------------------------x | Name | bits | visible | |--------------------------------------------------| - | RES0 | [63-32] | n | + | RES0 | [63-48] | n | + |--------------------------------------------------| + | DP | [47-44] | y | + |--------------------------------------------------| + | SM4 | [43-40] | y | + |--------------------------------------------------| + | SM3 | [39-36] | y | + |--------------------------------------------------| + | SHA3 | [35-32] | y | |--------------------------------------------------| | RDM | [31-28] | y | |--------------------------------------------------| + | RES0 | [27-24] | n | + |--------------------------------------------------| | ATOMICS | [23-20] | y | |--------------------------------------------------| | CRC32 | [19-16] | y | diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index f707fed5886f..32f489ba952f 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -318,6 +318,10 @@ #define SCTLR_EL1_CP15BEN (1 << 5) /* id_aa64isar0 */ +#define ID_AA64ISAR0_DP_SHIFT 44 +#define ID_AA64ISAR0_SM4_SHIFT 40 +#define ID_AA64ISAR0_SM3_SHIFT 36 +#define ID_AA64ISAR0_SHA3_SHIFT 32 #define ID_AA64ISAR0_RDM_SHIFT 28 #define ID_AA64ISAR0_ATOMICS_SHIFT 20 #define ID_AA64ISAR0_CRC32_SHIFT 16 diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h index 4b9344cba83a..a4bad90a3fa3 100644 --- a/arch/arm64/include/uapi/asm/hwcap.h +++ b/arch/arm64/include/uapi/asm/hwcap.h @@ -36,5 +36,10 @@ #define HWCAP_FCMA (1 << 14) #define HWCAP_LRCPC (1 << 15) #define HWCAP_DCPOP (1 << 16) +#define HWCAP_SHA3 (1 << 17) +#define HWCAP_SM3 (1 << 18) +#define HWCAP_SM4 (1 << 19) +#define HWCAP_ASIMDDP (1 << 20) +#define HWCAP_SHA512 (1 << 21) #endif /* _UAPI__ASM_HWCAP_H */ diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index cd52d365d1f0..3214ee44de56 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -107,6 +107,10 @@ cpufeature_pan_not_uao(const struct arm64_cpu_capabilities *entry, int __unused) * sync with the documentation of the CPU feature register ABI. */ static const struct arm64_ftr_bits ftr_id_aa64isar0[] = { + ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, ID_AA64ISAR0_DP_SHIFT, 4, 0), + ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, ID_AA64ISAR0_SM4_SHIFT, 4, 0), + ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, ID_AA64ISAR0_SM3_SHIFT, 4, 0), + ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, ID_AA64ISAR0_SHA3_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_EXACT, ID_AA64ISAR0_RDM_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR0_ATOMICS_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64ISAR0_CRC32_SHIFT, 4, 0), @@ -921,9 +925,14 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = { HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_AES_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_AES), HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_SHA1_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_SHA1), HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_SHA2_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_SHA2), + HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_SHA2_SHIFT, FTR_UNSIGNED, 2, CAP_HWCAP, HWCAP_SHA512), HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_CRC32_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_CRC32), HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_ATOMICS_SHIFT, FTR_UNSIGNED, 2, CAP_HWCAP, HWCAP_ATOMICS), HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_RDM_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_ASIMDRDM), + HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_SHA3_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_SHA3), + HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_SM3_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_SM3), + HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_SM4_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_SM4), + HWCAP_CAP(SYS_ID_AA64ISAR0_EL1, ID_AA64ISAR0_DP_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_ASIMDDP), HWCAP_CAP(SYS_ID_AA64PFR0_EL1, ID_AA64PFR0_FP_SHIFT, FTR_SIGNED, 0, CAP_HWCAP, HWCAP_FP), HWCAP_CAP(SYS_ID_AA64PFR0_EL1, ID_AA64PFR0_FP_SHIFT, FTR_SIGNED, 1, CAP_HWCAP, HWCAP_FPHP), HWCAP_CAP(SYS_ID_AA64PFR0_EL1, ID_AA64PFR0_ASIMD_SHIFT, FTR_SIGNED, 0, CAP_HWCAP, HWCAP_ASIMD), diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index 311885962830..1ff1c5a67081 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -69,6 +69,11 @@ static const char *const hwcap_str[] = { "fcma", "lrcpc", "dcpop", + "sha3", + "sm3", + "sm4", + "asimddp", + "sha512", NULL }; -- cgit v1.2.3 From 611a7bc74ed2dcbab6693c20bb534cfcf15f9d1d Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Wed, 11 Oct 2017 14:01:03 +0100 Subject: arm64: docs: describe ELF hwcaps We don't document our ELF hwcaps, leaving developers to interpret them according to hearsay, guesswork, or (in exceptional cases) inspection of the current kernel code. This is less than optimal, and it would be far better if we had some definitive description of each of the ELF hwcaps that developers could refer to. This patch adds a document describing the (native) arm64 ELF hwcaps. Cc: Catalin Marinas Cc: Dave Martin Cc: Will Deacon Signed-off-by: Mark Rutland [ Updated new hwcap entries in the document ] Signed-off-by: Suzuki K Poulose Signed-off-by: Will Deacon --- Documentation/arm64/elf_hwcaps.txt | 156 +++++++++++++++++++++++++++++++++++++ 1 file changed, 156 insertions(+) create mode 100644 Documentation/arm64/elf_hwcaps.txt (limited to 'Documentation') diff --git a/Documentation/arm64/elf_hwcaps.txt b/Documentation/arm64/elf_hwcaps.txt new file mode 100644 index 000000000000..0ba180522e3c --- /dev/null +++ b/Documentation/arm64/elf_hwcaps.txt @@ -0,0 +1,156 @@ +ARM64 ELF hwcaps +================ + +This document describes the usage and semantics of the arm64 ELF hwcaps. + + +1. Introduction +--------------- + +Some hardware or software features are only available on some CPU +implementations, and/or with certain kernel configurations, but have no +architected discovery mechanism available to userspace code at EL0. The +kernel exposes the presence of these features to userspace through a set +of flags called hwcaps, exposed in the auxilliary vector. + +Userspace software can test for features by acquiring the AT_HWCAP entry +of the auxilliary vector, and testing whether the relevant flags are +set, e.g. + +bool floating_point_is_present(void) +{ + unsigned long hwcaps = getauxval(AT_HWCAP); + if (hwcaps & HWCAP_FP) + return true; + + return false; +} + +Where software relies on a feature described by a hwcap, it should check +the relevant hwcap flag to verify that the feature is present before +attempting to make use of the feature. + +Features cannot be probed reliably through other means. When a feature +is not available, attempting to use it may result in unpredictable +behaviour, and is not guaranteed to result in any reliable indication +that the feature is unavailable, such as a SIGILL. + + +2. Interpretation of hwcaps +--------------------------- + +The majority of hwcaps are intended to indicate the presence of features +which are described by architected ID registers inaccessible to +userspace code at EL0. These hwcaps are defined in terms of ID register +fields, and should be interpreted with reference to the definition of +these fields in the ARM Architecture Reference Manual (ARM ARM). + +Such hwcaps are described below in the form: + + Functionality implied by idreg.field == val. + +Such hwcaps indicate the availability of functionality that the ARM ARM +defines as being present when idreg.field has value val, but do not +indicate that idreg.field is precisely equal to val, nor do they +indicate the absence of functionality implied by other values of +idreg.field. + +Other hwcaps may indicate the presence of features which cannot be +described by ID registers alone. These may be described without +reference to ID registers, and may refer to other documentation. + + +3. The hwcaps exposed in AT_HWCAP +--------------------------------- + +HWCAP_FP + + Functionality implied by ID_AA64PFR0_EL1.FP == 0b0000. + +HWCAP_ASIMD + + Functionality implied by ID_AA64PFR0_EL1.AdvSIMD == 0b0000. + +HWCAP_EVTSTRM + + The generic timer is configured to generate events at a frequency of + approximately 100KHz. + +HWCAP_AES + + Functionality implied by ID_AA64ISAR1_EL1.AES == 0b0001. + +HWCAP_PMULL + + Functionality implied by ID_AA64ISAR1_EL1.AES == 0b0010. + +HWCAP_SHA1 + + Functionality implied by ID_AA64ISAR0_EL1.SHA1 == 0b0001. + +HWCAP_SHA2 + + Functionality implied by ID_AA64ISAR0_EL1.SHA2 == 0b0001. + +HWCAP_CRC32 + + Functionality implied by ID_AA64ISAR0_EL1.CRC32 == 0b0001. + +HWCAP_ATOMICS + + Functionality implied by ID_AA64ISAR0_EL1.Atomic == 0b0010. + +HWCAP_FPHP + + Functionality implied by ID_AA64PFR0_EL1.FP == 0b0001. + +HWCAP_ASIMDHP + + Functionality implied by ID_AA64PFR0_EL1.AdvSIMD == 0b0001. + +HWCAP_CPUID + + EL0 access to certain ID registers is available, to the extent + described by Documentation/arm64/cpu-feature-registers.txt. + + These ID registers may imply the availability of features. + +HWCAP_ASIMDRDM + + Functionality implied by ID_AA64ISAR0_EL1.RDM == 0b0001. + +HWCAP_JSCVT + + Functionality implied by ID_AA64ISAR1_EL1.JSCVT == 0b0001. + +HWCAP_FCMA + + Functionality implied by ID_AA64ISAR1_EL1.FCMA == 0b0001. + +HWCAP_LRCPC + + Functionality implied by ID_AA64ISAR1_EL1.LRCPC == 0b0001. + +HWCAP_DCPOP + + Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0001. + +HWCAP_SHA3 + + Functionality implied by ID_AA64ISAR0_EL1.SHA3 == 0b0001. + +HWCAP_SM3 + + Functionality implied by ID_AA64ISAR0_EL1.SM3 == 0b0001. + +HWCAP_SM4 + + Functionality implied by ID_AA64ISAR0_EL1.SM4 == 0b0001. + +HWCAP_ASIMDDP + + Functionality implied by ID_AA64ISAR0_EL1.DP == 0b0001. + +HWCAP_SHA512 + + Functionality implied by ID_AA64ISAR0_EL1.SHA2 == 0b0002. -- cgit v1.2.3 From 5ce8c7a0e6945fdd48ed99cfcfcc25568c1e5960 Mon Sep 17 00:00:00 2001 From: Marc Gonzalez Date: Fri, 6 Oct 2017 08:23:37 -0400 Subject: media: dt: bindings: Add binding for tango HW IR decoder Add DT binding for the HW IR decoder embedded in SMP86xx/SMP87xx. Signed-off-by: Marc Gonzalez Acked-by: Rob Herring Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab --- .../devicetree/bindings/media/tango-ir.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/tango-ir.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/tango-ir.txt b/Documentation/devicetree/bindings/media/tango-ir.txt new file mode 100644 index 000000000000..a9f00c2bf897 --- /dev/null +++ b/Documentation/devicetree/bindings/media/tango-ir.txt @@ -0,0 +1,21 @@ +Sigma Designs Tango IR NEC/RC-5/RC-6 decoder (SMP86xx and SMP87xx) + +Required properties: + +- compatible: "sigma,smp8642-ir" +- reg: address/size of NEC+RC5 area, address/size of RC6 area +- interrupts: spec for IR IRQ +- clocks: spec for IR clock (typically the crystal oscillator) + +Optional properties: + +- linux,rc-map-name: see Documentation/devicetree/bindings/media/rc.txt + +Example: + + ir@10518 { + compatible = "sigma,smp8642-ir"; + reg = <0x10518 0x18>, <0x105e0 0x1c>; + interrupts = <21 IRQ_TYPE_EDGE_RISING>; + clocks = <&xtal>; + }; -- cgit v1.2.3 From 259a41d9ae8f3689742267f340ad2b159d00b302 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 18 Sep 2017 08:21:37 -0400 Subject: media: dvb_frontend: fix return values for FE_SET_PROPERTY There are several problems with regards to the return of FE_SET_PROPERTY. The original idea were to return per-property return codes via tvp->result field, and to return an updated set of values. However, that never worked. What's actually implemented is: - the FE_SET_PROPERTY implementation doesn't call .get_frontend callback in order to get the actual parameters after return; - the tvp->result field is only filled if there's no error. So, it is always filled with zero; - FE_SET_PROPERTY doesn't call memdup_user() nor any other copy_to_user() function. So, any changes to the properties will be lost; - FE_SET_PROPERTY is declared as a write-only ioctl (IOW). While we could fix the above, it could cause regressions. So, let's just assume what the code really does, updating the documentation accordingly and removing the logic that would update the discarded tvp->result. Reviewed-by: Shuah Khan Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/uapi/dvb/fe-get-property.rst | 7 +++++-- drivers/media/dvb-core/dvb_frontend.c | 2 -- include/uapi/linux/dvb/frontend.h | 2 +- 3 files changed, 6 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/media/uapi/dvb/fe-get-property.rst b/Documentation/media/uapi/dvb/fe-get-property.rst index 948d2ba84f2c..b69741d9cedf 100644 --- a/Documentation/media/uapi/dvb/fe-get-property.rst +++ b/Documentation/media/uapi/dvb/fe-get-property.rst @@ -48,8 +48,11 @@ depends on the delivery system and on the device: - This call requires read/write access to the device. - - At return, the values are updated to reflect the actual parameters - used. +.. note:: + + At return, the values aren't updated to reflect the actual + parameters used. If the actual parameters are needed, an explicit + call to ``FE_GET_PROPERTY`` is needed. - ``FE_GET_PROPERTY:`` diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c index b19f40be0ab2..5e3bcae477d2 100644 --- a/drivers/media/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb-core/dvb_frontend.c @@ -2125,7 +2125,6 @@ static int dvb_frontend_handle_ioctl(struct file *file, kfree(tvp); return err; } - (tvp + i)->result = err; } kfree(tvp); break; @@ -2170,7 +2169,6 @@ static int dvb_frontend_handle_ioctl(struct file *file, kfree(tvp); return err; } - (tvp + i)->result = err; } if (copy_to_user((void __user *)tvps->props, tvp, diff --git a/include/uapi/linux/dvb/frontend.h b/include/uapi/linux/dvb/frontend.h index 861cacd5711f..6bc26f35217b 100644 --- a/include/uapi/linux/dvb/frontend.h +++ b/include/uapi/linux/dvb/frontend.h @@ -830,7 +830,7 @@ struct dtv_fe_stats { * @cmd: Digital TV command. * @reserved: Not used. * @u: Union with the values for the command. - * @result: Result of the command set (currently unused). + * @result: Unused * * The @u union may have either one of the values below: * -- cgit v1.2.3 From 7af90c04cc8343fb8063d0b3d7ba135daf3aabde Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 19 Sep 2017 16:46:10 -0400 Subject: media: dtv-core.rst: add chapters and introductory tests for common parts Better document the DVB common parts by adding two sections and an introductory text for each. Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/kapi/dtv-core.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'Documentation') diff --git a/Documentation/media/kapi/dtv-core.rst b/Documentation/media/kapi/dtv-core.rst index de9a228aca8a..4cf9cf63bafd 100644 --- a/Documentation/media/kapi/dtv-core.rst +++ b/Documentation/media/kapi/dtv-core.rst @@ -29,8 +29,20 @@ I2C bus. Digital TV Common functions --------------------------- +Math functions +~~~~~~~~~~~~~~ + +Provide some commonly-used math functions, usually required in order to +estimate signal strength and signal to noise measurements in dB. + .. kernel-doc:: drivers/media/dvb-core/dvb_math.h + +DVB devices +~~~~~~~~~~~ + +Those functions are responsible for handling the DVB device nodes. + .. kernel-doc:: drivers/media/dvb-core/dvbdev.h Digital TV Ring buffer -- cgit v1.2.3 From 5b3b8c81b47aa3ca473d310b1aa3ab93f0ec9c6b Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 19 Sep 2017 16:54:15 -0400 Subject: media: dtv-core.rst: split into multiple files Instead of document all kAPI into a single file, split it on multiple ones. That makes easier to maintain each part. As a side effect, it will produce multiple html pages, with is a good idea. No changes at the text. Just some chapter levels changed. Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/kapi/dtv-ca.rst | 4 + Documentation/media/kapi/dtv-common.rst | 55 +++ Documentation/media/kapi/dtv-core.rst | 585 +----------------------------- Documentation/media/kapi/dtv-demux.rst | 71 ++++ Documentation/media/kapi/dtv-frontend.rst | 443 ++++++++++++++++++++++ 5 files changed, 579 insertions(+), 579 deletions(-) create mode 100644 Documentation/media/kapi/dtv-ca.rst create mode 100644 Documentation/media/kapi/dtv-common.rst create mode 100644 Documentation/media/kapi/dtv-demux.rst create mode 100644 Documentation/media/kapi/dtv-frontend.rst (limited to 'Documentation') diff --git a/Documentation/media/kapi/dtv-ca.rst b/Documentation/media/kapi/dtv-ca.rst new file mode 100644 index 000000000000..a4dd700189b0 --- /dev/null +++ b/Documentation/media/kapi/dtv-ca.rst @@ -0,0 +1,4 @@ +Digital TV Conditional Access kABI +---------------------------------- + +.. kernel-doc:: drivers/media/dvb-core/dvb_ca_en50221.h diff --git a/Documentation/media/kapi/dtv-common.rst b/Documentation/media/kapi/dtv-common.rst new file mode 100644 index 000000000000..40cf1033b5e1 --- /dev/null +++ b/Documentation/media/kapi/dtv-common.rst @@ -0,0 +1,55 @@ +Digital TV Common functions +--------------------------- + +Math functions +~~~~~~~~~~~~~~ + +Provide some commonly-used math functions, usually required in order to +estimate signal strength and signal to noise measurements in dB. + +.. kernel-doc:: drivers/media/dvb-core/dvb_math.h + + +DVB devices +~~~~~~~~~~~ + +Those functions are responsible for handling the DVB device nodes. + +.. kernel-doc:: drivers/media/dvb-core/dvbdev.h + +Digital TV Ring buffer +~~~~~~~~~~~~~~~~~~~~~~ + +Those routines implement ring buffers used to handle digital TV data and +copy it from/to userspace. + +.. note:: + + 1) For performance reasons read and write routines don't check buffer sizes + and/or number of bytes free/available. This has to be done before these + routines are called. For example: + + .. code-block:: c + + /* write @buflen: bytes */ + free = dvb_ringbuffer_free(rbuf); + if (free >= buflen) + count = dvb_ringbuffer_write(rbuf, buffer, buflen); + else + /* do something */ + + /* read min. 1000, max. @bufsize: bytes */ + avail = dvb_ringbuffer_avail(rbuf); + if (avail >= 1000) + count = dvb_ringbuffer_read(rbuf, buffer, min(avail, bufsize)); + else + /* do something */ + + 2) If there is exactly one reader and one writer, there is no need + to lock read or write operations. + Two or more readers must be locked against each other. + Flushing the buffer counts as a read operation. + Resetting the buffer counts as a read and write operation. + Two or more writers must be locked against each other. + +.. kernel-doc:: drivers/media/dvb-core/dvb_ringbuffer.h diff --git a/Documentation/media/kapi/dtv-core.rst b/Documentation/media/kapi/dtv-core.rst index 4cf9cf63bafd..8ee384f61fa0 100644 --- a/Documentation/media/kapi/dtv-core.rst +++ b/Documentation/media/kapi/dtv-core.rst @@ -26,584 +26,11 @@ I2C bus. abandoned standard, not used anymore) and ATSC version 3.0 current proposals. Currently, the DVB subsystem doesn't implement those standards. -Digital TV Common functions ---------------------------- -Math functions -~~~~~~~~~~~~~~ +.. toctree:: + :maxdepth: 1 -Provide some commonly-used math functions, usually required in order to -estimate signal strength and signal to noise measurements in dB. - -.. kernel-doc:: drivers/media/dvb-core/dvb_math.h - - -DVB devices -~~~~~~~~~~~ - -Those functions are responsible for handling the DVB device nodes. - -.. kernel-doc:: drivers/media/dvb-core/dvbdev.h - -Digital TV Ring buffer ----------------------- - -Those routines implement ring buffers used to handle digital TV data and -copy it from/to userspace. - -.. note:: - - 1) For performance reasons read and write routines don't check buffer sizes - and/or number of bytes free/available. This has to be done before these - routines are called. For example: - - .. code-block:: c - - /* write @buflen: bytes */ - free = dvb_ringbuffer_free(rbuf); - if (free >= buflen) - count = dvb_ringbuffer_write(rbuf, buffer, buflen); - else - /* do something */ - - /* read min. 1000, max. @bufsize: bytes */ - avail = dvb_ringbuffer_avail(rbuf); - if (avail >= 1000) - count = dvb_ringbuffer_read(rbuf, buffer, min(avail, bufsize)); - else - /* do something */ - - 2) If there is exactly one reader and one writer, there is no need - to lock read or write operations. - Two or more readers must be locked against each other. - Flushing the buffer counts as a read operation. - Resetting the buffer counts as a read and write operation. - Two or more writers must be locked against each other. - -.. kernel-doc:: drivers/media/dvb-core/dvb_ringbuffer.h - - -Digital TV Frontend kABI ------------------------- - -Digital TV Frontend -~~~~~~~~~~~~~~~~~~~ - -The Digital TV Frontend kABI defines a driver-internal interface for -registering low-level, hardware specific driver to a hardware independent -frontend layer. It is only of interest for Digital TV device driver writers. -The header file for this API is named ``dvb_frontend.h`` and located in -``drivers/media/dvb-core``. - -Demodulator driver -^^^^^^^^^^^^^^^^^^ - -The demodulator driver is responsible to talk with the decoding part of the -hardware. Such driver should implement :c:type:`dvb_frontend_ops`, with -tells what type of digital TV standards are supported, and points to a -series of functions that allow the DVB core to command the hardware via -the code under ``drivers/media/dvb-core/dvb_frontend.c``. - -A typical example of such struct in a driver ``foo`` is:: - - static struct dvb_frontend_ops foo_ops = { - .delsys = { SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A }, - .info = { - .name = "foo DVB-T/T2/C driver", - .caps = FE_CAN_FEC_1_2 | - FE_CAN_FEC_2_3 | - FE_CAN_FEC_3_4 | - FE_CAN_FEC_5_6 | - FE_CAN_FEC_7_8 | - FE_CAN_FEC_AUTO | - FE_CAN_QPSK | - FE_CAN_QAM_16 | - FE_CAN_QAM_32 | - FE_CAN_QAM_64 | - FE_CAN_QAM_128 | - FE_CAN_QAM_256 | - FE_CAN_QAM_AUTO | - FE_CAN_TRANSMISSION_MODE_AUTO | - FE_CAN_GUARD_INTERVAL_AUTO | - FE_CAN_HIERARCHY_AUTO | - FE_CAN_MUTE_TS | - FE_CAN_2G_MODULATION, - .frequency_min = 42000000, /* Hz */ - .frequency_max = 1002000000, /* Hz */ - .symbol_rate_min = 870000, - .symbol_rate_max = 11700000 - }, - .init = foo_init, - .sleep = foo_sleep, - .release = foo_release, - .set_frontend = foo_set_frontend, - .get_frontend = foo_get_frontend, - .read_status = foo_get_status_and_stats, - .tune = foo_tune, - .i2c_gate_ctrl = foo_i2c_gate_ctrl, - .get_frontend_algo = foo_get_algo, - }; - -A typical example of such struct in a driver ``bar`` meant to be used on -Satellite TV reception is:: - - static const struct dvb_frontend_ops bar_ops = { - .delsys = { SYS_DVBS, SYS_DVBS2 }, - .info = { - .name = "Bar DVB-S/S2 demodulator", - .frequency_min = 500000, /* KHz */ - .frequency_max = 2500000, /* KHz */ - .frequency_stepsize = 0, - .symbol_rate_min = 1000000, - .symbol_rate_max = 45000000, - .symbol_rate_tolerance = 500, - .caps = FE_CAN_INVERSION_AUTO | - FE_CAN_FEC_AUTO | - FE_CAN_QPSK, - }, - .init = bar_init, - .sleep = bar_sleep, - .release = bar_release, - .set_frontend = bar_set_frontend, - .get_frontend = bar_get_frontend, - .read_status = bar_get_status_and_stats, - .i2c_gate_ctrl = bar_i2c_gate_ctrl, - .get_frontend_algo = bar_get_algo, - .tune = bar_tune, - - /* Satellite-specific */ - .diseqc_send_master_cmd = bar_send_diseqc_msg, - .diseqc_send_burst = bar_send_burst, - .set_tone = bar_set_tone, - .set_voltage = bar_set_voltage, - }; - -.. note:: - - #) For satellite digital TV standards (DVB-S, DVB-S2, ISDB-S), the - frequencies are specified in kHz, while, for terrestrial and cable - standards, they're specified in Hz. Due to that, if the same frontend - supports both types, you'll need to have two separate - :c:type:`dvb_frontend_ops` structures, one for each standard. - #) The ``.i2c_gate_ctrl`` field is present only when the hardware has - allows controlling an I2C gate (either directly of via some GPIO pin), - in order to remove the tuner from the I2C bus after a channel is - tuned. - #) All new drivers should implement the - :ref:`DVBv5 statistics ` via ``.read_status``. - Yet, there are a number of callbacks meant to get statistics for - signal strength, S/N and UCB. Those are there to provide backward - compatibility with legacy applications that don't support the DVBv5 - API. Implementing those callbacks are optional. Those callbacks may be - removed in the future, after we have all existing drivers supporting - DVBv5 stats. - #) Other callbacks are required for satellite TV standards, in order to - control LNBf and DiSEqC: ``.diseqc_send_master_cmd``, - ``.diseqc_send_burst``, ``.set_tone``, ``.set_voltage``. - -.. |delta| unicode:: U+00394 - -The ``drivers/media/dvb-core/dvb_frontend.c`` has a kernel thread with is -responsible for tuning the device. It supports multiple algoritms to -detect a channel, as defined at enum :c:func:`dvbfe_algo`. - -The algorithm to be used is obtained via ``.get_frontend_algo``. If the driver -doesn't fill its field at struct :c:type:`dvb_frontend_ops`, it will default to -``DVBFE_ALGO_SW``, meaning that the dvb-core will do a zigzag when tuning, -e. g. it will try first to use the specified center frequency ``f``, -then, it will do ``f`` + |delta|, ``f`` - |delta|, ``f`` + 2 x |delta|, -``f`` - 2 x |delta| and so on. - -If the hardware has internally a some sort of zigzag algorithm, you should -define a ``.get_frontend_algo`` function that would return ``DVBFE_ALGO_HW``. - -.. note:: - - The core frontend support also supports - a third type (``DVBFE_ALGO_CUSTOM``), in order to allow the driver to - define its own hardware-assisted algorithm. Very few hardware need to - use it nowadays. Using ``DVBFE_ALGO_CUSTOM`` require to provide other - function callbacks at struct :c:type:`dvb_frontend_ops`. - -Attaching frontend driver to the bridge driver -^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -Before using the Digital TV frontend core, the bridge driver should attach -the frontend demod, tuner and SEC devices and call -:c:func:`dvb_register_frontend()`, -in order to register the new frontend at the subsystem. At device -detach/removal, the bridge driver should call -:c:func:`dvb_unregister_frontend()` to -remove the frontend from the core and then :c:func:`dvb_frontend_detach()` -to free the memory allocated by the frontend drivers. - -The drivers should also call :c:func:`dvb_frontend_suspend()` as part of -their handler for the :c:type:`device_driver`.\ ``suspend()``, and -:c:func:`dvb_frontend_resume()` as -part of their handler for :c:type:`device_driver`.\ ``resume()``. - -A few other optional functions are provided to handle some special cases. - -.. _dvbv5_stats: - -Digital TV Frontend statistics -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -Introduction -^^^^^^^^^^^^ - -Digital TV frontends provide a range of -:ref:`statistics ` meant to help tuning the device -and measuring the quality of service. - -For each statistics measurement, the driver should set the type of scale used, -or ``FE_SCALE_NOT_AVAILABLE`` if the statistics is not available on a given -time. Drivers should also provide the number of statistics for each type. -that's usually 1 for most video standards [#f2]_. - -Drivers should initialize each statistic counters with length and -scale at its init code. For example, if the frontend provides signal -strength, it should have, on its init code:: - - struct dtv_frontend_properties *c = &state->fe.dtv_property_cache; - - c->strength.len = 1; - c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; - -And, when the statistics got updated, set the scale:: - - c->strength.stat[0].scale = FE_SCALE_DECIBEL; - c->strength.stat[0].uvalue = strength; - -.. [#f2] For ISDB-T, it may provide both a global statistics and a per-layer - set of statistics. On such cases, len should be equal to 4. The first - value corresponds to the global stat; the other ones to each layer, e. g.: - - - c->cnr.stat[0] for global S/N carrier ratio, - - c->cnr.stat[1] for Layer A S/N carrier ratio, - - c->cnr.stat[2] for layer B S/N carrier ratio, - - c->cnr.stat[3] for layer C S/N carrier ratio. - -.. note:: Please prefer to use ``FE_SCALE_DECIBEL`` instead of - ``FE_SCALE_RELATIVE`` for signal strength and CNR measurements. - -Groups of statistics -^^^^^^^^^^^^^^^^^^^^ - -There are several groups of statistics currently supported: - -Signal strength (:ref:`DTV-STAT-SIGNAL-STRENGTH`) - - Measures the signal strength level at the analog part of the tuner or - demod. - - - Typically obtained from the gain applied to the tuner and/or frontend - in order to detect the carrier. When no carrier is detected, the gain is - at the maximum value (so, strength is on its minimal). - - - As the gain is visible through the set of registers that adjust the gain, - typically, this statistics is always available [#f3]_. - - - Drivers should try to make it available all the times, as this statistics - can be used when adjusting an antenna position and to check for troubles - at the cabling. - - .. [#f3] On a few devices, the gain keeps floating if no carrier. - On such devices, strength report should check first if carrier is - detected at the tuner (``FE_HAS_CARRIER``, see :c:type:`fe_status`), - and otherwise return the lowest possible value. - -Carrier Signal to Noise ratio (:ref:`DTV-STAT-CNR`) - - Signal to Noise ratio for the main carrier. - - - Signal to Noise measurement depends on the device. On some hardware, is - available when the main carrier is detected. On those hardware, CNR - measurement usually comes from the tuner (e. g. after ``FE_HAS_CARRIER``, - see :c:type:`fe_status`). - - On other devices, it requires inner FEC decoding, - as the frontend measures it indirectly from other parameters (e. g. after - ``FE_HAS_VITERBI``, see :c:type:`fe_status`). - - Having it available after inner FEC is more common. - -Bit counts post-FEC (:ref:`DTV-STAT-POST-ERROR-BIT-COUNT` and :ref:`DTV-STAT-POST-TOTAL-BIT-COUNT`) - - Those counters measure the number of bits and bit errors errors after - the forward error correction (FEC) on the inner coding block - (after Viterbi, LDPC or other inner code). - - - Due to its nature, those statistics depend on full coding lock - (e. g. after ``FE_HAS_SYNC`` or after ``FE_HAS_LOCK``, - see :c:type:`fe_status`). - -Bit counts pre-FEC (:ref:`DTV-STAT-PRE-ERROR-BIT-COUNT` and :ref:`DTV-STAT-PRE-TOTAL-BIT-COUNT`) - - Those counters measure the number of bits and bit errors errors before - the forward error correction (FEC) on the inner coding block - (before Viterbi, LDPC or other inner code). - - - Not all frontends provide this kind of statistics. - - - Due to its nature, those statistics depend on inner coding lock (e. g. - after ``FE_HAS_VITERBI``, see :c:type:`fe_status`). - -Block counts (:ref:`DTV-STAT-ERROR-BLOCK-COUNT` and :ref:`DTV-STAT-TOTAL-BLOCK-COUNT`) - - Those counters measure the number of blocks and block errors errors after - the forward error correction (FEC) on the inner coding block - (before Viterbi, LDPC or other inner code). - - - Due to its nature, those statistics depend on full coding lock - (e. g. after ``FE_HAS_SYNC`` or after - ``FE_HAS_LOCK``, see :c:type:`fe_status`). - -.. note:: All counters should be monotonically increased as they're - collected from the hardware. - -A typical example of the logic that handle status and statistics is:: - - static int foo_get_status_and_stats(struct dvb_frontend *fe) - { - struct foo_state *state = fe->demodulator_priv; - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - - int rc; - enum fe_status *status; - - /* Both status and strength are always available */ - rc = foo_read_status(fe, &status); - if (rc < 0) - return rc; - - rc = foo_read_strength(fe); - if (rc < 0) - return rc; - - /* Check if CNR is available */ - if (!(fe->status & FE_HAS_CARRIER)) - return 0; - - rc = foo_read_cnr(fe); - if (rc < 0) - return rc; - - /* Check if pre-BER stats are available */ - if (!(fe->status & FE_HAS_VITERBI)) - return 0; - - rc = foo_get_pre_ber(fe); - if (rc < 0) - return rc; - - /* Check if post-BER stats are available */ - if (!(fe->status & FE_HAS_SYNC)) - return 0; - - rc = foo_get_post_ber(fe); - if (rc < 0) - return rc; - } - - static const struct dvb_frontend_ops ops = { - /* ... */ - .read_status = foo_get_status_and_stats, - }; - -Statistics collect -^^^^^^^^^^^^^^^^^^ - -On almost all frontend hardware, the bit and byte counts are stored by -the hardware after a certain amount of time or after the total bit/block -counter reaches a certain value (usually programable), for example, on -every 1000 ms or after receiving 1,000,000 bits. - -So, if you read the registers too soon, you'll end by reading the same -value as in the previous reading, causing the monotonic value to be -incremented too often. - -Drivers should take the responsibility to avoid too often reads. That -can be done using two approaches: - -if the driver have a bit that indicates when a collected data is ready -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - -Driver should check such bit before making the statistics available. - -An example of such behavior can be found at this code snippet (adapted -from mb86a20s driver's logic):: - - static int foo_get_pre_ber(struct dvb_frontend *fe) - { - struct foo_state *state = fe->demodulator_priv; - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - int rc, bit_error; - - /* Check if the BER measures are already available */ - rc = foo_read_u8(state, 0x54); - if (rc < 0) - return rc; - - if (!rc) - return 0; - - /* Read Bit Error Count */ - bit_error = foo_read_u32(state, 0x55); - if (bit_error < 0) - return bit_error; - - /* Read Total Bit Count */ - rc = foo_read_u32(state, 0x51); - if (rc < 0) - return rc; - - c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER; - c->pre_bit_error.stat[0].uvalue += bit_error; - c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER; - c->pre_bit_count.stat[0].uvalue += rc; - - return 0; - } - -If the driver doesn't provide a statistics available check bit -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% - -A few devices, however, may not provide a way to check if the stats are -available (or the way to check it is unknown). They may not even provide -a way to directly read the total number of bits or blocks. - -On those devices, the driver need to ensure that it won't be reading from -the register too often and/or estimate the total number of bits/blocks. - -On such drivers, a typical routine to get statistics would be like -(adapted from dib8000 driver's logic):: - - struct foo_state { - /* ... */ - - unsigned long per_jiffies_stats; - } - - static int foo_get_pre_ber(struct dvb_frontend *fe) - { - struct foo_state *state = fe->demodulator_priv; - struct dtv_frontend_properties *c = &fe->dtv_property_cache; - int rc, bit_error; - u64 bits; - - /* Check if time for stats was elapsed */ - if (!time_after(jiffies, state->per_jiffies_stats)) - return 0; - - /* Next stat should be collected in 1000 ms */ - state->per_jiffies_stats = jiffies + msecs_to_jiffies(1000); - - /* Read Bit Error Count */ - bit_error = foo_read_u32(state, 0x55); - if (bit_error < 0) - return bit_error; - - /* - * On this particular frontend, there's no register that - * would provide the number of bits per 1000ms sample. So, - * some function would calculate it based on DTV properties - */ - bits = get_number_of_bits_per_1000ms(fe); - - c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER; - c->pre_bit_error.stat[0].uvalue += bit_error; - c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER; - c->pre_bit_count.stat[0].uvalue += bits; - - return 0; - } - -Please notice that, on both cases, we're getting the statistics using the -:c:type:`dvb_frontend_ops` ``.read_status`` callback. The rationale is that -the frontend core will automatically call this function periodically -(usually, 3 times per second, when the frontend is locked). - -That warrants that we won't miss to collect a counter and increment the -monotonic stats at the right time. - -Digital TV Frontend functions and types -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -.. kernel-doc:: drivers/media/dvb-core/dvb_frontend.h - - -Digital TV Demux kABI ---------------------- - -Digital TV Demux -~~~~~~~~~~~~~~~~ - -The Kernel Digital TV Demux kABI defines a driver-internal interface for -registering low-level, hardware specific driver to a hardware independent -demux layer. It is only of interest for Digital TV device driver writers. -The header file for this kABI is named demux.h and located in -drivers/media/dvb-core. - -The demux kABI should be implemented for each demux in the system. It is -used to select the TS source of a demux and to manage the demux resources. -When the demux client allocates a resource via the demux kABI, it receives -a pointer to the kABI of that resource. - -Each demux receives its TS input from a DVB front-end or from memory, as -set via this demux kABI. In a system with more than one front-end, the kABI -can be used to select one of the DVB front-ends as a TS source for a demux, -unless this is fixed in the HW platform. - -The demux kABI only controls front-ends regarding to their connections with -demuxes; the kABI used to set the other front-end parameters, such as -tuning, are devined via the Digital TV Frontend kABI. - -The functions that implement the abstract interface demux should be defined -static or module private and registered to the Demux core for external -access. It is not necessary to implement every function in the struct -&dmx_demux. For example, a demux interface might support Section filtering, -but not PES filtering. The kABI client is expected to check the value of any -function pointer before calling the function: the value of ``NULL`` means -that the function is not available. - -Whenever the functions of the demux API modify shared data, the -possibilities of lost update and race condition problems should be -addressed, e.g. by protecting parts of code with mutexes. - -Note that functions called from a bottom half context must not sleep. -Even a simple memory allocation without using ``GFP_ATOMIC`` can result in a -kernel thread being put to sleep if swapping is needed. For example, the -Linux Kernel calls the functions of a network device interface from a -bottom half context. Thus, if a demux kABI function is called from network -device code, the function must not sleep. - - - -Demux Callback API ------------------- - -Demux Callback -~~~~~~~~~~~~~~ - -This kernel-space API comprises the callback functions that deliver filtered -data to the demux client. Unlike the other DVB kABIs, these functions are -provided by the client and called from the demux code. - -The function pointers of this abstract interface are not packed into a -structure as in the other demux APIs, because the callback functions are -registered and used independent of each other. As an example, it is possible -for the API client to provide several callback functions for receiving TS -packets and no callbacks for PES packets or sections. - -The functions that implement the callback API need not be re-entrant: when -a demux driver calls one of these functions, the driver is not allowed to -call the function again before the original call returns. If a callback is -triggered by a hardware interrupt, it is recommended to use the Linux -bottom half mechanism or start a tasklet instead of making the callback -function call directly from a hardware interrupt. - -This mechanism is implemented by :c:func:`dmx_ts_cb()` and :c:func:`dmx_section_cb()` -callbacks. - -.. kernel-doc:: drivers/media/dvb-core/demux.h - -Digital TV Conditional Access kABI ----------------------------------- - -.. kernel-doc:: drivers/media/dvb-core/dvb_ca_en50221.h + dtv-common + dtv-frontend + dtv-demux + dtv-ca diff --git a/Documentation/media/kapi/dtv-demux.rst b/Documentation/media/kapi/dtv-demux.rst new file mode 100644 index 000000000000..8169c479156e --- /dev/null +++ b/Documentation/media/kapi/dtv-demux.rst @@ -0,0 +1,71 @@ +Digital TV Demux kABI +--------------------- + +Digital TV Demux +~~~~~~~~~~~~~~~~ + +The Kernel Digital TV Demux kABI defines a driver-internal interface for +registering low-level, hardware specific driver to a hardware independent +demux layer. It is only of interest for Digital TV device driver writers. +The header file for this kABI is named demux.h and located in +drivers/media/dvb-core. + +The demux kABI should be implemented for each demux in the system. It is +used to select the TS source of a demux and to manage the demux resources. +When the demux client allocates a resource via the demux kABI, it receives +a pointer to the kABI of that resource. + +Each demux receives its TS input from a DVB front-end or from memory, as +set via this demux kABI. In a system with more than one front-end, the kABI +can be used to select one of the DVB front-ends as a TS source for a demux, +unless this is fixed in the HW platform. + +The demux kABI only controls front-ends regarding to their connections with +demuxes; the kABI used to set the other front-end parameters, such as +tuning, are devined via the Digital TV Frontend kABI. + +The functions that implement the abstract interface demux should be defined +static or module private and registered to the Demux core for external +access. It is not necessary to implement every function in the struct +&dmx_demux. For example, a demux interface might support Section filtering, +but not PES filtering. The kABI client is expected to check the value of any +function pointer before calling the function: the value of ``NULL`` means +that the function is not available. + +Whenever the functions of the demux API modify shared data, the +possibilities of lost update and race condition problems should be +addressed, e.g. by protecting parts of code with mutexes. + +Note that functions called from a bottom half context must not sleep. +Even a simple memory allocation without using ``GFP_ATOMIC`` can result in a +kernel thread being put to sleep if swapping is needed. For example, the +Linux Kernel calls the functions of a network device interface from a +bottom half context. Thus, if a demux kABI function is called from network +device code, the function must not sleep. + + + +Demux Callback API +~~~~~~~~~~~~~~~~~~ + +This kernel-space API comprises the callback functions that deliver filtered +data to the demux client. Unlike the other DVB kABIs, these functions are +provided by the client and called from the demux code. + +The function pointers of this abstract interface are not packed into a +structure as in the other demux APIs, because the callback functions are +registered and used independent of each other. As an example, it is possible +for the API client to provide several callback functions for receiving TS +packets and no callbacks for PES packets or sections. + +The functions that implement the callback API need not be re-entrant: when +a demux driver calls one of these functions, the driver is not allowed to +call the function again before the original call returns. If a callback is +triggered by a hardware interrupt, it is recommended to use the Linux +bottom half mechanism or start a tasklet instead of making the callback +function call directly from a hardware interrupt. + +This mechanism is implemented by :c:func:`dmx_ts_cb()` and :c:func:`dmx_section_cb()` +callbacks. + +.. kernel-doc:: drivers/media/dvb-core/demux.h diff --git a/Documentation/media/kapi/dtv-frontend.rst b/Documentation/media/kapi/dtv-frontend.rst new file mode 100644 index 000000000000..9f67b7a7387d --- /dev/null +++ b/Documentation/media/kapi/dtv-frontend.rst @@ -0,0 +1,443 @@ +Digital TV Frontend kABI +------------------------ + +Digital TV Frontend +~~~~~~~~~~~~~~~~~~~ + +The Digital TV Frontend kABI defines a driver-internal interface for +registering low-level, hardware specific driver to a hardware independent +frontend layer. It is only of interest for Digital TV device driver writers. +The header file for this API is named ``dvb_frontend.h`` and located in +``drivers/media/dvb-core``. + +Demodulator driver +^^^^^^^^^^^^^^^^^^ + +The demodulator driver is responsible to talk with the decoding part of the +hardware. Such driver should implement :c:type:`dvb_frontend_ops`, with +tells what type of digital TV standards are supported, and points to a +series of functions that allow the DVB core to command the hardware via +the code under ``drivers/media/dvb-core/dvb_frontend.c``. + +A typical example of such struct in a driver ``foo`` is:: + + static struct dvb_frontend_ops foo_ops = { + .delsys = { SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A }, + .info = { + .name = "foo DVB-T/T2/C driver", + .caps = FE_CAN_FEC_1_2 | + FE_CAN_FEC_2_3 | + FE_CAN_FEC_3_4 | + FE_CAN_FEC_5_6 | + FE_CAN_FEC_7_8 | + FE_CAN_FEC_AUTO | + FE_CAN_QPSK | + FE_CAN_QAM_16 | + FE_CAN_QAM_32 | + FE_CAN_QAM_64 | + FE_CAN_QAM_128 | + FE_CAN_QAM_256 | + FE_CAN_QAM_AUTO | + FE_CAN_TRANSMISSION_MODE_AUTO | + FE_CAN_GUARD_INTERVAL_AUTO | + FE_CAN_HIERARCHY_AUTO | + FE_CAN_MUTE_TS | + FE_CAN_2G_MODULATION, + .frequency_min = 42000000, /* Hz */ + .frequency_max = 1002000000, /* Hz */ + .symbol_rate_min = 870000, + .symbol_rate_max = 11700000 + }, + .init = foo_init, + .sleep = foo_sleep, + .release = foo_release, + .set_frontend = foo_set_frontend, + .get_frontend = foo_get_frontend, + .read_status = foo_get_status_and_stats, + .tune = foo_tune, + .i2c_gate_ctrl = foo_i2c_gate_ctrl, + .get_frontend_algo = foo_get_algo, + }; + +A typical example of such struct in a driver ``bar`` meant to be used on +Satellite TV reception is:: + + static const struct dvb_frontend_ops bar_ops = { + .delsys = { SYS_DVBS, SYS_DVBS2 }, + .info = { + .name = "Bar DVB-S/S2 demodulator", + .frequency_min = 500000, /* KHz */ + .frequency_max = 2500000, /* KHz */ + .frequency_stepsize = 0, + .symbol_rate_min = 1000000, + .symbol_rate_max = 45000000, + .symbol_rate_tolerance = 500, + .caps = FE_CAN_INVERSION_AUTO | + FE_CAN_FEC_AUTO | + FE_CAN_QPSK, + }, + .init = bar_init, + .sleep = bar_sleep, + .release = bar_release, + .set_frontend = bar_set_frontend, + .get_frontend = bar_get_frontend, + .read_status = bar_get_status_and_stats, + .i2c_gate_ctrl = bar_i2c_gate_ctrl, + .get_frontend_algo = bar_get_algo, + .tune = bar_tune, + + /* Satellite-specific */ + .diseqc_send_master_cmd = bar_send_diseqc_msg, + .diseqc_send_burst = bar_send_burst, + .set_tone = bar_set_tone, + .set_voltage = bar_set_voltage, + }; + +.. note:: + + #) For satellite digital TV standards (DVB-S, DVB-S2, ISDB-S), the + frequencies are specified in kHz, while, for terrestrial and cable + standards, they're specified in Hz. Due to that, if the same frontend + supports both types, you'll need to have two separate + :c:type:`dvb_frontend_ops` structures, one for each standard. + #) The ``.i2c_gate_ctrl`` field is present only when the hardware has + allows controlling an I2C gate (either directly of via some GPIO pin), + in order to remove the tuner from the I2C bus after a channel is + tuned. + #) All new drivers should implement the + :ref:`DVBv5 statistics ` via ``.read_status``. + Yet, there are a number of callbacks meant to get statistics for + signal strength, S/N and UCB. Those are there to provide backward + compatibility with legacy applications that don't support the DVBv5 + API. Implementing those callbacks are optional. Those callbacks may be + removed in the future, after we have all existing drivers supporting + DVBv5 stats. + #) Other callbacks are required for satellite TV standards, in order to + control LNBf and DiSEqC: ``.diseqc_send_master_cmd``, + ``.diseqc_send_burst``, ``.set_tone``, ``.set_voltage``. + +.. |delta| unicode:: U+00394 + +The ``drivers/media/dvb-core/dvb_frontend.c`` has a kernel thread with is +responsible for tuning the device. It supports multiple algoritms to +detect a channel, as defined at enum :c:func:`dvbfe_algo`. + +The algorithm to be used is obtained via ``.get_frontend_algo``. If the driver +doesn't fill its field at struct :c:type:`dvb_frontend_ops`, it will default to +``DVBFE_ALGO_SW``, meaning that the dvb-core will do a zigzag when tuning, +e. g. it will try first to use the specified center frequency ``f``, +then, it will do ``f`` + |delta|, ``f`` - |delta|, ``f`` + 2 x |delta|, +``f`` - 2 x |delta| and so on. + +If the hardware has internally a some sort of zigzag algorithm, you should +define a ``.get_frontend_algo`` function that would return ``DVBFE_ALGO_HW``. + +.. note:: + + The core frontend support also supports + a third type (``DVBFE_ALGO_CUSTOM``), in order to allow the driver to + define its own hardware-assisted algorithm. Very few hardware need to + use it nowadays. Using ``DVBFE_ALGO_CUSTOM`` require to provide other + function callbacks at struct :c:type:`dvb_frontend_ops`. + +Attaching frontend driver to the bridge driver +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +Before using the Digital TV frontend core, the bridge driver should attach +the frontend demod, tuner and SEC devices and call +:c:func:`dvb_register_frontend()`, +in order to register the new frontend at the subsystem. At device +detach/removal, the bridge driver should call +:c:func:`dvb_unregister_frontend()` to +remove the frontend from the core and then :c:func:`dvb_frontend_detach()` +to free the memory allocated by the frontend drivers. + +The drivers should also call :c:func:`dvb_frontend_suspend()` as part of +their handler for the :c:type:`device_driver`.\ ``suspend()``, and +:c:func:`dvb_frontend_resume()` as +part of their handler for :c:type:`device_driver`.\ ``resume()``. + +A few other optional functions are provided to handle some special cases. + +.. _dvbv5_stats: + +Digital TV Frontend statistics +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Introduction +^^^^^^^^^^^^ + +Digital TV frontends provide a range of +:ref:`statistics ` meant to help tuning the device +and measuring the quality of service. + +For each statistics measurement, the driver should set the type of scale used, +or ``FE_SCALE_NOT_AVAILABLE`` if the statistics is not available on a given +time. Drivers should also provide the number of statistics for each type. +that's usually 1 for most video standards [#f2]_. + +Drivers should initialize each statistic counters with length and +scale at its init code. For example, if the frontend provides signal +strength, it should have, on its init code:: + + struct dtv_frontend_properties *c = &state->fe.dtv_property_cache; + + c->strength.len = 1; + c->strength.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + +And, when the statistics got updated, set the scale:: + + c->strength.stat[0].scale = FE_SCALE_DECIBEL; + c->strength.stat[0].uvalue = strength; + +.. [#f2] For ISDB-T, it may provide both a global statistics and a per-layer + set of statistics. On such cases, len should be equal to 4. The first + value corresponds to the global stat; the other ones to each layer, e. g.: + + - c->cnr.stat[0] for global S/N carrier ratio, + - c->cnr.stat[1] for Layer A S/N carrier ratio, + - c->cnr.stat[2] for layer B S/N carrier ratio, + - c->cnr.stat[3] for layer C S/N carrier ratio. + +.. note:: Please prefer to use ``FE_SCALE_DECIBEL`` instead of + ``FE_SCALE_RELATIVE`` for signal strength and CNR measurements. + +Groups of statistics +^^^^^^^^^^^^^^^^^^^^ + +There are several groups of statistics currently supported: + +Signal strength (:ref:`DTV-STAT-SIGNAL-STRENGTH`) + - Measures the signal strength level at the analog part of the tuner or + demod. + + - Typically obtained from the gain applied to the tuner and/or frontend + in order to detect the carrier. When no carrier is detected, the gain is + at the maximum value (so, strength is on its minimal). + + - As the gain is visible through the set of registers that adjust the gain, + typically, this statistics is always available [#f3]_. + + - Drivers should try to make it available all the times, as this statistics + can be used when adjusting an antenna position and to check for troubles + at the cabling. + + .. [#f3] On a few devices, the gain keeps floating if no carrier. + On such devices, strength report should check first if carrier is + detected at the tuner (``FE_HAS_CARRIER``, see :c:type:`fe_status`), + and otherwise return the lowest possible value. + +Carrier Signal to Noise ratio (:ref:`DTV-STAT-CNR`) + - Signal to Noise ratio for the main carrier. + + - Signal to Noise measurement depends on the device. On some hardware, is + available when the main carrier is detected. On those hardware, CNR + measurement usually comes from the tuner (e. g. after ``FE_HAS_CARRIER``, + see :c:type:`fe_status`). + + On other devices, it requires inner FEC decoding, + as the frontend measures it indirectly from other parameters (e. g. after + ``FE_HAS_VITERBI``, see :c:type:`fe_status`). + + Having it available after inner FEC is more common. + +Bit counts post-FEC (:ref:`DTV-STAT-POST-ERROR-BIT-COUNT` and :ref:`DTV-STAT-POST-TOTAL-BIT-COUNT`) + - Those counters measure the number of bits and bit errors errors after + the forward error correction (FEC) on the inner coding block + (after Viterbi, LDPC or other inner code). + + - Due to its nature, those statistics depend on full coding lock + (e. g. after ``FE_HAS_SYNC`` or after ``FE_HAS_LOCK``, + see :c:type:`fe_status`). + +Bit counts pre-FEC (:ref:`DTV-STAT-PRE-ERROR-BIT-COUNT` and :ref:`DTV-STAT-PRE-TOTAL-BIT-COUNT`) + - Those counters measure the number of bits and bit errors errors before + the forward error correction (FEC) on the inner coding block + (before Viterbi, LDPC or other inner code). + + - Not all frontends provide this kind of statistics. + + - Due to its nature, those statistics depend on inner coding lock (e. g. + after ``FE_HAS_VITERBI``, see :c:type:`fe_status`). + +Block counts (:ref:`DTV-STAT-ERROR-BLOCK-COUNT` and :ref:`DTV-STAT-TOTAL-BLOCK-COUNT`) + - Those counters measure the number of blocks and block errors errors after + the forward error correction (FEC) on the inner coding block + (before Viterbi, LDPC or other inner code). + + - Due to its nature, those statistics depend on full coding lock + (e. g. after ``FE_HAS_SYNC`` or after + ``FE_HAS_LOCK``, see :c:type:`fe_status`). + +.. note:: All counters should be monotonically increased as they're + collected from the hardware. + +A typical example of the logic that handle status and statistics is:: + + static int foo_get_status_and_stats(struct dvb_frontend *fe) + { + struct foo_state *state = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + + int rc; + enum fe_status *status; + + /* Both status and strength are always available */ + rc = foo_read_status(fe, &status); + if (rc < 0) + return rc; + + rc = foo_read_strength(fe); + if (rc < 0) + return rc; + + /* Check if CNR is available */ + if (!(fe->status & FE_HAS_CARRIER)) + return 0; + + rc = foo_read_cnr(fe); + if (rc < 0) + return rc; + + /* Check if pre-BER stats are available */ + if (!(fe->status & FE_HAS_VITERBI)) + return 0; + + rc = foo_get_pre_ber(fe); + if (rc < 0) + return rc; + + /* Check if post-BER stats are available */ + if (!(fe->status & FE_HAS_SYNC)) + return 0; + + rc = foo_get_post_ber(fe); + if (rc < 0) + return rc; + } + + static const struct dvb_frontend_ops ops = { + /* ... */ + .read_status = foo_get_status_and_stats, + }; + +Statistics collect +^^^^^^^^^^^^^^^^^^ + +On almost all frontend hardware, the bit and byte counts are stored by +the hardware after a certain amount of time or after the total bit/block +counter reaches a certain value (usually programable), for example, on +every 1000 ms or after receiving 1,000,000 bits. + +So, if you read the registers too soon, you'll end by reading the same +value as in the previous reading, causing the monotonic value to be +incremented too often. + +Drivers should take the responsibility to avoid too often reads. That +can be done using two approaches: + +if the driver have a bit that indicates when a collected data is ready +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +Driver should check such bit before making the statistics available. + +An example of such behavior can be found at this code snippet (adapted +from mb86a20s driver's logic):: + + static int foo_get_pre_ber(struct dvb_frontend *fe) + { + struct foo_state *state = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int rc, bit_error; + + /* Check if the BER measures are already available */ + rc = foo_read_u8(state, 0x54); + if (rc < 0) + return rc; + + if (!rc) + return 0; + + /* Read Bit Error Count */ + bit_error = foo_read_u32(state, 0x55); + if (bit_error < 0) + return bit_error; + + /* Read Total Bit Count */ + rc = foo_read_u32(state, 0x51); + if (rc < 0) + return rc; + + c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER; + c->pre_bit_error.stat[0].uvalue += bit_error; + c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER; + c->pre_bit_count.stat[0].uvalue += rc; + + return 0; + } + +If the driver doesn't provide a statistics available check bit +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +A few devices, however, may not provide a way to check if the stats are +available (or the way to check it is unknown). They may not even provide +a way to directly read the total number of bits or blocks. + +On those devices, the driver need to ensure that it won't be reading from +the register too often and/or estimate the total number of bits/blocks. + +On such drivers, a typical routine to get statistics would be like +(adapted from dib8000 driver's logic):: + + struct foo_state { + /* ... */ + + unsigned long per_jiffies_stats; + } + + static int foo_get_pre_ber(struct dvb_frontend *fe) + { + struct foo_state *state = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int rc, bit_error; + u64 bits; + + /* Check if time for stats was elapsed */ + if (!time_after(jiffies, state->per_jiffies_stats)) + return 0; + + /* Next stat should be collected in 1000 ms */ + state->per_jiffies_stats = jiffies + msecs_to_jiffies(1000); + + /* Read Bit Error Count */ + bit_error = foo_read_u32(state, 0x55); + if (bit_error < 0) + return bit_error; + + /* + * On this particular frontend, there's no register that + * would provide the number of bits per 1000ms sample. So, + * some function would calculate it based on DTV properties + */ + bits = get_number_of_bits_per_1000ms(fe); + + c->pre_bit_error.stat[0].scale = FE_SCALE_COUNTER; + c->pre_bit_error.stat[0].uvalue += bit_error; + c->pre_bit_count.stat[0].scale = FE_SCALE_COUNTER; + c->pre_bit_count.stat[0].uvalue += bits; + + return 0; + } + +Please notice that, on both cases, we're getting the statistics using the +:c:type:`dvb_frontend_ops` ``.read_status`` callback. The rationale is that +the frontend core will automatically call this function periodically +(usually, 3 times per second, when the frontend is locked). + +That warrants that we won't miss to collect a counter and increment the +monotonic stats at the right time. + +Digital TV Frontend functions and types +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +.. kernel-doc:: drivers/media/dvb-core/dvb_frontend.h -- cgit v1.2.3 From b2fc98fc91647e4b7ec1ac90001729345ec3e790 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 11 Oct 2017 13:06:30 -0400 Subject: media: dtv-frontend.rst fix a typo: algoritms -> algorithms WARNING: 'algoritms' may be misspelled - perhaps 'algorithms'? +responsible for tuning the device. It supports multiple algoritms to Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/kapi/dtv-frontend.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/media/kapi/dtv-frontend.rst b/Documentation/media/kapi/dtv-frontend.rst index 9f67b7a7387d..f1a2fdaab5ba 100644 --- a/Documentation/media/kapi/dtv-frontend.rst +++ b/Documentation/media/kapi/dtv-frontend.rst @@ -119,7 +119,7 @@ Satellite TV reception is:: .. |delta| unicode:: U+00394 The ``drivers/media/dvb-core/dvb_frontend.c`` has a kernel thread with is -responsible for tuning the device. It supports multiple algoritms to +responsible for tuning the device. It supports multiple algorithms to detect a channel, as defined at enum :c:func:`dvbfe_algo`. The algorithm to be used is obtained via ``.get_frontend_algo``. If the driver -- cgit v1.2.3 From 1607b8b574c9318ea58f3f08cf85514ceddf467a Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 19 Sep 2017 17:05:14 -0400 Subject: media: dtv-demux.rst: minor markup improvements Add a cross-reference to a mentioned structure and split the kernel-doc stuff on a separate chapter. Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/kapi/dtv-demux.rst | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/media/kapi/dtv-demux.rst b/Documentation/media/kapi/dtv-demux.rst index 8169c479156e..3ee69266e206 100644 --- a/Documentation/media/kapi/dtv-demux.rst +++ b/Documentation/media/kapi/dtv-demux.rst @@ -7,8 +7,8 @@ Digital TV Demux The Kernel Digital TV Demux kABI defines a driver-internal interface for registering low-level, hardware specific driver to a hardware independent demux layer. It is only of interest for Digital TV device driver writers. -The header file for this kABI is named demux.h and located in -drivers/media/dvb-core. +The header file for this kABI is named ``demux.h`` and located in +``drivers/media/dvb-core``. The demux kABI should be implemented for each demux in the system. It is used to select the TS source of a demux and to manage the demux resources. @@ -27,7 +27,7 @@ tuning, are devined via the Digital TV Frontend kABI. The functions that implement the abstract interface demux should be defined static or module private and registered to the Demux core for external access. It is not necessary to implement every function in the struct -&dmx_demux. For example, a demux interface might support Section filtering, +:c:type:`dmx_demux`. For example, a demux interface might support Section filtering, but not PES filtering. The kABI client is expected to check the value of any function pointer before calling the function: the value of ``NULL`` means that the function is not available. @@ -43,8 +43,6 @@ Linux Kernel calls the functions of a network device interface from a bottom half context. Thus, if a demux kABI function is called from network device code, the function must not sleep. - - Demux Callback API ~~~~~~~~~~~~~~~~~~ @@ -68,4 +66,7 @@ function call directly from a hardware interrupt. This mechanism is implemented by :c:func:`dmx_ts_cb()` and :c:func:`dmx_section_cb()` callbacks. +Digital TV Demux functions and types +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + .. kernel-doc:: drivers/media/dvb-core/demux.h -- cgit v1.2.3 From 8c6b18631ff6a4823249becb51b428da5f0f9a40 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 19 Sep 2017 19:03:14 -0400 Subject: media: dtv-demux.rst: parse other demux headers with kernel-doc Now that we have kernel-doc markups at dvb_demux.h and dmxdev.h, parse them. Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/kapi/dtv-demux.rst | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/media/kapi/dtv-demux.rst b/Documentation/media/kapi/dtv-demux.rst index 3ee69266e206..7aa865a2b43f 100644 --- a/Documentation/media/kapi/dtv-demux.rst +++ b/Documentation/media/kapi/dtv-demux.rst @@ -66,7 +66,17 @@ function call directly from a hardware interrupt. This mechanism is implemented by :c:func:`dmx_ts_cb()` and :c:func:`dmx_section_cb()` callbacks. -Digital TV Demux functions and types -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Digital TV Demux device registration functions and data structures +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +.. kernel-doc:: drivers/media/dvb-core/dmxdev.h + +High-level Digital TV demux interface +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +.. kernel-doc:: drivers/media/dvb-core/dvb_demux.h + +Driver-internal low-level hardware specific driver demux interface +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .. kernel-doc:: drivers/media/dvb-core/demux.h -- cgit v1.2.3 From b5b03a200934cad3c77e85026a3549847234f74e Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 20 Sep 2017 13:51:06 -0400 Subject: media: dvb-net.rst: document DVB network kAPI interface That's the last DVB kAPI that misses documentation. Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/kapi/dtv-core.rst | 1 + Documentation/media/kapi/dtv-net.rst | 4 ++++ Documentation/media/uapi/dvb/net-types.rst | 2 +- drivers/media/dvb-core/dvb_net.h | 34 ++++++++++++++++++++++++++++-- 4 files changed, 38 insertions(+), 3 deletions(-) create mode 100644 Documentation/media/kapi/dtv-net.rst (limited to 'Documentation') diff --git a/Documentation/media/kapi/dtv-core.rst b/Documentation/media/kapi/dtv-core.rst index 8ee384f61fa0..bca743dc6b43 100644 --- a/Documentation/media/kapi/dtv-core.rst +++ b/Documentation/media/kapi/dtv-core.rst @@ -34,3 +34,4 @@ I2C bus. dtv-frontend dtv-demux dtv-ca + dtv-net diff --git a/Documentation/media/kapi/dtv-net.rst b/Documentation/media/kapi/dtv-net.rst new file mode 100644 index 000000000000..ced991b73d69 --- /dev/null +++ b/Documentation/media/kapi/dtv-net.rst @@ -0,0 +1,4 @@ +Digital TV Network kABI +----------------------- + +.. kernel-doc:: drivers/media/dvb-core/dvb_net.h diff --git a/Documentation/media/uapi/dvb/net-types.rst b/Documentation/media/uapi/dvb/net-types.rst index e1177bdcd623..8fa3292eaa42 100644 --- a/Documentation/media/uapi/dvb/net-types.rst +++ b/Documentation/media/uapi/dvb/net-types.rst @@ -1,6 +1,6 @@ .. -*- coding: utf-8; mode: rst -*- -.. _dmx_types: +.. _net_types: ************** Net Data Types diff --git a/drivers/media/dvb-core/dvb_net.h b/drivers/media/dvb-core/dvb_net.h index e9b18aa03e02..1eae8bad7cc1 100644 --- a/drivers/media/dvb-core/dvb_net.h +++ b/drivers/media/dvb-core/dvb_net.h @@ -30,6 +30,22 @@ #ifdef CONFIG_DVB_NET +/** + * struct dvb_net - describes a DVB network interface + * + * @dvbdev: pointer to &struct dvb_device. + * @device: array of pointers to &struct net_device. + * @state: array of integers to each net device. A value + * different than zero means that the interface is + * in usage. + * @exit: flag to indicate when the device is being removed. + * @demux: pointer to &struct dmx_demux. + * @ioctl_mutex: protect access to this struct. + * + * Currently, the core supports up to %DVB_NET_DEVICES_MAX (10) network + * devices. + */ + struct dvb_net { struct dvb_device *dvbdev; struct net_device *device[DVB_NET_DEVICES_MAX]; @@ -39,8 +55,22 @@ struct dvb_net { struct mutex ioctl_mutex; }; -void dvb_net_release(struct dvb_net *); -int dvb_net_init(struct dvb_adapter *, struct dvb_net *, struct dmx_demux *); +/** + * dvb_net_init - nitializes a digital TV network device and registers it. + * + * @adap: pointer to &struct dvb_adapter. + * @dvbnet: pointer to &struct dvb_net. + * @dmxdemux: pointer to &struct dmx_demux. + */ +int dvb_net_init(struct dvb_adapter *adap, struct dvb_net *dvbnet, + struct dmx_demux *dmxdemux); + +/** + * dvb_net_release - releases a digital TV network device and unregisters it. + * + * @dvbnet: pointer to &struct dvb_net. + */ +void dvb_net_release(struct dvb_net *dvbnet); #else -- cgit v1.2.3 From b33494e950c6d492c65799252cb8bc2692468221 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 20 Sep 2017 14:42:42 -0400 Subject: media: dvb uAPI docs: get rid of examples section That section is too outdated and got superseded by DVBv5 and by libdvbv5. Maybe some day we'll end adding updated examples there, but while nobody has time or interest of doing that, just mention that there and get rid of the current examples for good. Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/uapi/dvb/examples.rst | 378 +----------------------------- 1 file changed, 6 insertions(+), 372 deletions(-) (limited to 'Documentation') diff --git a/Documentation/media/uapi/dvb/examples.rst b/Documentation/media/uapi/dvb/examples.rst index e0f627ca2e4d..16dd90fa9e94 100644 --- a/Documentation/media/uapi/dvb/examples.rst +++ b/Documentation/media/uapi/dvb/examples.rst @@ -6,377 +6,11 @@ Examples ******** -In this section we would like to present some examples for using the Digital -TV API. +In the past, we used to have a set of examples here. However, those +examples got out of date and doesn't even compile nowadays. -.. note:: +Also, nowadays, the best is to use the libdvbv5 DVB API nowadays, +with is fully documented. - This section is out of date, and the code below won't even - compile. Please refer to the - `libdvbv5 `__ for - updated/recommended examples. - - -.. _tuning: - -Example: Tuning -=============== - -We will start with a generic tuning subroutine that uses the frontend -and SEC, as well as the demux devices. The example is given for QPSK -tuners, but can easily be adjusted for QAM. - - -.. code-block:: c - - #include - #include - #include - #include - #include - #include - #include - #include - - #include - #include - #include - #include - - #define DMX "/dev/dvb/adapter0/demux1" - #define FRONT "/dev/dvb/adapter0/frontend1" - #define SEC "/dev/dvb/adapter0/sec1" - - /* routine for checking if we have a signal and other status information*/ - int FEReadStatus(int fd, fe_status_t *stat) - { - int ans; - - if ( (ans = ioctl(fd,FE_READ_STATUS,stat) < 0)){ - perror("FE READ STATUS: "); - return -1; - } - - if (*stat & FE_HAS_POWER) - printf("FE HAS POWER\\n"); - - if (*stat & FE_HAS_SIGNAL) - printf("FE HAS SIGNAL\\n"); - - if (*stat & FE_SPECTRUM_INV) - printf("SPEKTRUM INV\\n"); - - return 0; - } - - - /* tune qpsk */ - /* freq: frequency of transponder */ - /* vpid, apid, tpid: PIDs of video, audio and teletext TS packets */ - /* diseqc: DiSEqC address of the used LNB */ - /* pol: Polarisation */ - /* srate: Symbol Rate */ - /* fec. FEC */ - /* lnb_lof1: local frequency of lower LNB band */ - /* lnb_lof2: local frequency of upper LNB band */ - /* lnb_slof: switch frequency of LNB */ - - int set_qpsk_channel(int freq, int vpid, int apid, int tpid, - int diseqc, int pol, int srate, int fec, int lnb_lof1, - int lnb_lof2, int lnb_slof) - { - struct secCommand scmd; - struct secCmdSequence scmds; - struct dmx_pes_filter_params pesFilterParams; - FrontendParameters frp; - struct pollfd pfd[1]; - FrontendEvent event; - int demux1, demux2, demux3, front; - - frequency = (uint32_t) freq; - symbolrate = (uint32_t) srate; - - if((front = open(FRONT,O_RDWR)) < 0){ - perror("FRONTEND DEVICE: "); - return -1; - } - - if((sec = open(SEC,O_RDWR)) < 0){ - perror("SEC DEVICE: "); - return -1; - } - - if (demux1 < 0){ - if ((demux1=open(DMX, O_RDWR|O_NONBLOCK)) - < 0){ - perror("DEMUX DEVICE: "); - return -1; - } - } - - if (demux2 < 0){ - if ((demux2=open(DMX, O_RDWR|O_NONBLOCK)) - < 0){ - perror("DEMUX DEVICE: "); - return -1; - } - } - - if (demux3 < 0){ - if ((demux3=open(DMX, O_RDWR|O_NONBLOCK)) - < 0){ - perror("DEMUX DEVICE: "); - return -1; - } - } - - if (freq < lnb_slof) { - frp.Frequency = (freq - lnb_lof1); - scmds.continuousTone = SEC_TONE_OFF; - } else { - frp.Frequency = (freq - lnb_lof2); - scmds.continuousTone = SEC_TONE_ON; - } - frp.Inversion = INVERSION_AUTO; - if (pol) scmds.voltage = SEC_VOLTAGE_18; - else scmds.voltage = SEC_VOLTAGE_13; - - scmd.type=0; - scmd.u.diseqc.addr=0x10; - scmd.u.diseqc.cmd=0x38; - scmd.u.diseqc.numParams=1; - scmd.u.diseqc.params[0] = 0xF0 | ((diseqc * 4) & 0x0F) | - (scmds.continuousTone == SEC_TONE_ON ? 1 : 0) | - (scmds.voltage==SEC_VOLTAGE_18 ? 2 : 0); - - scmds.miniCommand=SEC_MINI_NONE; - scmds.numCommands=1; - scmds.commands=&scmd; - if (ioctl(sec, SEC_SEND_SEQUENCE, &scmds) < 0){ - perror("SEC SEND: "); - return -1; - } - - if (ioctl(sec, SEC_SEND_SEQUENCE, &scmds) < 0){ - perror("SEC SEND: "); - return -1; - } - - frp.u.qpsk.SymbolRate = srate; - frp.u.qpsk.FEC_inner = fec; - - if (ioctl(front, FE_SET_FRONTEND, &frp) < 0){ - perror("QPSK TUNE: "); - return -1; - } - - pfd[0].fd = front; - pfd[0].events = POLLIN; - - if (poll(pfd,1,3000)){ - if (pfd[0].revents & POLLIN){ - printf("Getting QPSK event\\n"); - if ( ioctl(front, FE_GET_EVENT, &event) - - == -EOVERFLOW){ - perror("qpsk get event"); - return -1; - } - printf("Received "); - switch(event.type){ - case FE_UNEXPECTED_EV: - printf("unexpected event\\n"); - return -1; - case FE_FAILURE_EV: - printf("failure event\\n"); - return -1; - - case FE_COMPLETION_EV: - printf("completion event\\n"); - } - } - } - - - pesFilterParams.pid = vpid; - pesFilterParams.input = DMX_IN_FRONTEND; - pesFilterParams.output = DMX_OUT_DECODER; - pesFilterParams.pes_type = DMX_PES_VIDEO; - pesFilterParams.flags = DMX_IMMEDIATE_START; - if (ioctl(demux1, DMX_SET_PES_FILTER, &pesFilterParams) < 0){ - perror("set_vpid"); - return -1; - } - - pesFilterParams.pid = apid; - pesFilterParams.input = DMX_IN_FRONTEND; - pesFilterParams.output = DMX_OUT_DECODER; - pesFilterParams.pes_type = DMX_PES_AUDIO; - pesFilterParams.flags = DMX_IMMEDIATE_START; - if (ioctl(demux2, DMX_SET_PES_FILTER, &pesFilterParams) < 0){ - perror("set_apid"); - return -1; - } - - pesFilterParams.pid = tpid; - pesFilterParams.input = DMX_IN_FRONTEND; - pesFilterParams.output = DMX_OUT_DECODER; - pesFilterParams.pes_type = DMX_PES_TELETEXT; - pesFilterParams.flags = DMX_IMMEDIATE_START; - if (ioctl(demux3, DMX_SET_PES_FILTER, &pesFilterParams) < 0){ - perror("set_tpid"); - return -1; - } - - return has_signal(fds); - } - -The program assumes that you are using a universal LNB and a standard -DiSEqC switch with up to 4 addresses. Of course, you could build in some -more checking if tuning was successful and maybe try to repeat the -tuning process. Depending on the external hardware, i.e. LNB and DiSEqC -switch, and weather conditions this may be necessary. - - -.. _the_dvr_device: - -Example: The DVR device -======================== - -The following program code shows how to use the DVR device for -recording. - - -.. code-block:: c - - #include - #include - #include - #include - #include - #include - #include - #include - - #include - #include - #include - #define DVR "/dev/dvb/adapter0/dvr1" - #define AUDIO "/dev/dvb/adapter0/audio1" - #define VIDEO "/dev/dvb/adapter0/video1" - - #define BUFFY (188*20) - #define MAX_LENGTH (1024*1024*5) /* record 5MB */ - - - /* switch the demuxes to recording, assuming the transponder is tuned */ - - /* demux1, demux2: file descriptor of video and audio filters */ - /* vpid, apid: PIDs of video and audio channels */ - - int switch_to_record(int demux1, int demux2, uint16_t vpid, uint16_t apid) - { - struct dmx_pes_filter_params pesFilterParams; - - if (demux1 < 0){ - if ((demux1=open(DMX, O_RDWR|O_NONBLOCK)) - < 0){ - perror("DEMUX DEVICE: "); - return -1; - } - } - - if (demux2 < 0){ - if ((demux2=open(DMX, O_RDWR|O_NONBLOCK)) - < 0){ - perror("DEMUX DEVICE: "); - return -1; - } - } - - pesFilterParams.pid = vpid; - pesFilterParams.input = DMX_IN_FRONTEND; - pesFilterParams.output = DMX_OUT_TS_TAP; - pesFilterParams.pes_type = DMX_PES_VIDEO; - pesFilterParams.flags = DMX_IMMEDIATE_START; - if (ioctl(demux1, DMX_SET_PES_FILTER, &pesFilterParams) < 0){ - perror("DEMUX DEVICE"); - return -1; - } - pesFilterParams.pid = apid; - pesFilterParams.input = DMX_IN_FRONTEND; - pesFilterParams.output = DMX_OUT_TS_TAP; - pesFilterParams.pes_type = DMX_PES_AUDIO; - pesFilterParams.flags = DMX_IMMEDIATE_START; - if (ioctl(demux2, DMX_SET_PES_FILTER, &pesFilterParams) < 0){ - perror("DEMUX DEVICE"); - return -1; - } - return 0; - } - - /* start recording MAX_LENGTH , assuming the transponder is tuned */ - - /* demux1, demux2: file descriptor of video and audio filters */ - /* vpid, apid: PIDs of video and audio channels */ - int record_dvr(int demux1, int demux2, uint16_t vpid, uint16_t apid) - { - int i; - int len; - int written; - uint8_t buf[BUFFY]; - uint64_t length; - struct pollfd pfd[1]; - int dvr, dvr_out; - - /* open dvr device */ - if ((dvr = open(DVR, O_RDONLY|O_NONBLOCK)) < 0){ - perror("DVR DEVICE"); - return -1; - } - - /* switch video and audio demuxes to dvr */ - printf ("Switching dvr on\\n"); - i = switch_to_record(demux1, demux2, vpid, apid); - printf("finished: "); - - printf("Recording %2.0f MB of test file in TS format\\n", - MAX_LENGTH/(1024.0*1024.0)); - length = 0; - - /* open output file */ - if ((dvr_out = open(DVR_FILE,O_WRONLY|O_CREAT - |O_TRUNC, S_IRUSR|S_IWUSR - |S_IRGRP|S_IWGRP|S_IROTH| - S_IWOTH)) < 0){ - perror("Can't open file for dvr test"); - return -1; - } - - pfd[0].fd = dvr; - pfd[0].events = POLLIN; - - /* poll for dvr data and write to file */ - while (length < MAX_LENGTH ) { - if (poll(pfd,1,1)){ - if (pfd[0].revents & POLLIN){ - len = read(dvr, buf, BUFFY); - if (len < 0){ - perror("recording"); - return -1; - } - if (len > 0){ - written = 0; - while (written < len) - written += - write (dvr_out, - buf, len); - length += len; - printf("written %2.0f MB\\r", - length/1024./1024.); - } - } - } - } - return 0; - } +Please refer to the `libdvbv5 `__ +for updated/recommended examples. -- cgit v1.2.3 From 9cb072482e1de25db0888899fccd88dc63cea0ab Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 10 Oct 2017 17:16:26 -0700 Subject: scsi: fix doc. typo for I2O Fix typo: I20 should be I2O. Signed-off-by: Randy Dunlap Signed-off-by: Martin K. Petersen --- Documentation/driver-api/scsi.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/driver-api/scsi.rst b/Documentation/driver-api/scsi.rst index 5a2aa7a377d9..9ae03171daca 100644 --- a/Documentation/driver-api/scsi.rst +++ b/Documentation/driver-api/scsi.rst @@ -28,7 +28,7 @@ SCSI commands can be transported over just about any kind of bus, and are the default protocol for storage devices attached to USB, SATA, SAS, Fibre Channel, FireWire, and ATAPI devices. SCSI packets are also commonly exchanged over Infiniband, -`I20 `__, TCP/IP +`I2O `__, TCP/IP (`iSCSI `__), even `Parallel ports `__. -- cgit v1.2.3 From 68ace22edb932836d59a5834df85f519c5ce4e4d Mon Sep 17 00:00:00 2001 From: Hou Zhiqiang Date: Tue, 19 Sep 2017 17:26:54 +0800 Subject: irqchip/ls-scfg-msi: Add LS1012a MSI support The ls1012a implements only 1 MSI controller, and it is the same as ls1043a. Signed-off-by: Hou Zhiqiang Signed-off-by: Bjorn Helgaas Acked-by: Rob Herring Acked-by: Minghuan Lian Acked-by: Thomas Gleixner --- .../devicetree/bindings/interrupt-controller/fsl,ls-scfg-msi.txt | 1 + drivers/irqchip/irq-ls-scfg-msi.c | 1 + 2 files changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-scfg-msi.txt b/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-scfg-msi.txt index 49ccabbfa6f3..a4ff93d6b7f3 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-scfg-msi.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-scfg-msi.txt @@ -8,6 +8,7 @@ Required properties: "fsl,ls1043a-msi" "fsl,ls1046a-msi" "fsl,ls1043a-v1.1-msi" + "fsl,ls1012a-msi" - msi-controller: indicates that this is a PCIe MSI controller node - reg: physical base address of the controller and length of memory mapped. - interrupts: an interrupt to the parent interrupt controller. diff --git a/drivers/irqchip/irq-ls-scfg-msi.c b/drivers/irqchip/irq-ls-scfg-msi.c index 119f4ef0d421..57e3d900f19e 100644 --- a/drivers/irqchip/irq-ls-scfg-msi.c +++ b/drivers/irqchip/irq-ls-scfg-msi.c @@ -316,6 +316,7 @@ static const struct of_device_id ls_scfg_msi_id[] = { { .compatible = "fsl,1s1021a-msi", .data = &ls1021_msi_cfg}, { .compatible = "fsl,1s1043a-msi", .data = &ls1021_msi_cfg}, + { .compatible = "fsl,ls1012a-msi", .data = &ls1021_msi_cfg }, { .compatible = "fsl,ls1021a-msi", .data = &ls1021_msi_cfg }, { .compatible = "fsl,ls1043a-msi", .data = &ls1021_msi_cfg }, { .compatible = "fsl,ls1043a-v1.1-msi", .data = &ls1043_v1_1_msi_cfg }, -- cgit v1.2.3 From 1548a21458bf7c5fc541c0785aa886602b27d5f5 Mon Sep 17 00:00:00 2001 From: Luca Weiss Date: Wed, 11 Oct 2017 13:02:25 +0200 Subject: ARM: dts: qcom: Add initial DTS file for Fairphone 2 phone This DTS has support for the Fairphone 2 (codenamed FP2). This first version of the DTS supports just the serial console via the MSM UART pins. Signed-off-by: Luca Weiss Acked-by: Bjorn Andersson Signed-off-by: Andy Gross --- .../devicetree/bindings/vendor-prefixes.txt | 1 + arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts | 22 ++++++++++++++++++++++ 3 files changed, 24 insertions(+) create mode 100644 arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 1ea1fd4232ab..f6d148f5c5f0 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -113,6 +113,7 @@ everspin Everspin Technologies, Inc. exar Exar Corporation excito Excito ezchip EZchip Semiconductor +fairphone Fairphone B.V. faraday Faraday Technology Corporation fcs Fairchild Semiconductor firefly Firefly diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 4da1b19178ec..f5cc9bef0f2d 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -700,6 +700,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \ qcom-ipq8064-ap148.dtb \ qcom-msm8660-surf.dtb \ qcom-msm8960-cdp.dtb \ + qcom-msm8974-fairphone-fp2.dtb \ qcom-msm8974-lge-nexus5-hammerhead.dtb \ qcom-msm8974-sony-xperia-castor.dtb \ qcom-msm8974-sony-xperia-honami.dtb \ diff --git a/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts new file mode 100644 index 000000000000..79a5aa8b856a --- /dev/null +++ b/arch/arm/boot/dts/qcom-msm8974-fairphone-fp2.dts @@ -0,0 +1,22 @@ +#include "qcom-msm8974.dtsi" +#include "qcom-pm8841.dtsi" +#include "qcom-pm8941.dtsi" + +/ { + model = "Fairphone 2"; + compatible = "fairphone,fp2", "qcom,msm8974"; + + aliases { + serial0 = &blsp1_uart2; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; +}; + +&soc { + serial@f991e000 { + status = "ok"; + }; +}; -- cgit v1.2.3 From b8b74dda3908660f49a5d5cec28725e3950e00d5 Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Tue, 3 Oct 2017 17:24:43 +0200 Subject: ARM64: dts: meson-gxm: Add support for Khadas VIM2 The Khadas VIM2 is a Single Board Computer, respin of the origin Khadas VIM board, using an Amlogic S912 SoC and more server oriented. It provides the same external connectors and header pinout, plus a SPI NOR Flash, a reprogrammable STM8S003 MCU, FPC Connector, Cooling FAN header and Pogo Pads Arrays. Cc: Gouwa Acked-by: Martin Blumenstingl Acked-by: Rob Herring Signed-off-by: Neil Armstrong Tested-by: Jerome Brunet Signed-off-by: Kevin Hilman --- Documentation/devicetree/bindings/arm/amlogic.txt | 1 + arch/arm64/boot/dts/amlogic/Makefile | 1 + .../boot/dts/amlogic/meson-gxm-khadas-vim2.dts | 399 +++++++++++++++++++++ 3 files changed, 401 insertions(+) create mode 100644 arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/amlogic.txt b/Documentation/devicetree/bindings/arm/amlogic.txt index 4e4bc0bae597..a44599739746 100644 --- a/Documentation/devicetree/bindings/arm/amlogic.txt +++ b/Documentation/devicetree/bindings/arm/amlogic.txt @@ -71,6 +71,7 @@ Board compatible values (alphabetically, grouped by SoC): - "amlogic,q200" (Meson gxm s912) - "amlogic,q201" (Meson gxm s912) + - "khadas,vim2" (Meson gxm s912) - "kingnovel,r-box-pro" (Meson gxm S912) - "nexbox,a1" (Meson gxm s912) diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile index 7a9f48c27b1f..70246e3ecd5c 100644 --- a/arch/arm64/boot/dts/amlogic/Makefile +++ b/arch/arm64/boot/dts/amlogic/Makefile @@ -15,6 +15,7 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-nexbox-a95x.dtb dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905x-p212.dtb dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-p230.dtb dtb-$(CONFIG_ARCH_MESON) += meson-gxl-s905d-p231.dtb +dtb-$(CONFIG_ARCH_MESON) += meson-gxm-khadas-vim2.dtb dtb-$(CONFIG_ARCH_MESON) += meson-gxm-nexbox-a1.dtb dtb-$(CONFIG_ARCH_MESON) += meson-gxm-q200.dtb dtb-$(CONFIG_ARCH_MESON) += meson-gxm-q201.dtb diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts new file mode 100644 index 000000000000..32c138ec0e58 --- /dev/null +++ b/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts @@ -0,0 +1,399 @@ +/* + * Copyright (c) 2017 Martin Blumenstingl . + * Copyright (c) 2017 BayLibre, SAS + * Author: Neil Armstrong + * + * SPDX-License-Identifier: (GPL-2.0+ OR MIT) + */ + +/dts-v1/; + +#include +#include + +#include "meson-gxm.dtsi" + +/ { + compatible = "khadas,vim2", "amlogic,s912", "amlogic,meson-gxm"; + model = "Khadas VIM2"; + + aliases { + serial0 = &uart_AO; + serial1 = &uart_A; + serial2 = &uart_AO_B; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + memory@0 { + device_type = "memory"; + reg = <0x0 0x0 0x0 0x80000000>; + }; + + adc-keys { + compatible = "adc-keys"; + io-channels = <&saradc 0>; + io-channel-names = "buttons"; + keyup-threshold-microvolt = <1710000>; + + button-function { + label = "Function"; + linux,code = ; + press-threshold-microvolt = <10000>; + }; + }; + + emmc_pwrseq: emmc-pwrseq { + compatible = "mmc-pwrseq-emmc"; + reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>; + }; + + gpio_fan: gpio-fan { + compatible = "gpio-fan"; + gpios = <&gpio GPIODV_14 GPIO_ACTIVE_HIGH + &gpio GPIODV_15 GPIO_ACTIVE_HIGH>; + /* Dummy RPM values since fan is optional */ + gpio-fan,speed-map = <0 0 + 1 1 + 2 2 + 3 3>; + cooling-min-level = <0>; + cooling-max-level = <3>; + #cooling-cells = <2>; + }; + + gpio-keys-polled { + compatible = "gpio-keys-polled"; + #address-cells = <1>; + #size-cells = <0>; + poll-interval = <100>; + + button@0 { + label = "power"; + linux,code = ; + gpios = <&gpio_ao GPIOAO_2 GPIO_ACTIVE_LOW>; + }; + }; + + hdmi-connector { + compatible = "hdmi-connector"; + type = "a"; + + port { + hdmi_connector_in: endpoint { + remote-endpoint = <&hdmi_tx_tmds_out>; + }; + }; + }; + + pwmleds { + compatible = "pwm-leds"; + + power { + label = "vim:red:power"; + pwms = <&pwm_AO_ab 1 7812500 0>; + max-brightness = <255>; + linux,default-trigger = "default-on"; + }; + }; + + sdio_pwrseq: sdio-pwrseq { + compatible = "mmc-pwrseq-simple"; + reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>; + clocks = <&wifi32k>; + clock-names = "ext_clock"; + }; + + thermal-zones { + cpu-thermal { + polling-delay-passive = <250>; /* milliseconds */ + polling-delay = <1000>; /* milliseconds */ + + thermal-sensors = <&scpi_sensors 0>; + + trips { + cpu_alert0: cpu-alert0 { + temperature = <70000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "active"; + }; + + cpu_alert1: cpu-alert1 { + temperature = <80000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "passive"; + }; + }; + + cooling-maps { + map0 { + trip = <&cpu_alert0>; + cooling-device = <&gpio_fan THERMAL_NO_LIMIT 1>; + }; + + map1 { + trip = <&cpu_alert1>; + cooling-device = <&gpio_fan 2 THERMAL_NO_LIMIT>; + }; + + map2 { + trip = <&cpu_alert1>; + cooling-device = + <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + + map3 { + trip = <&cpu_alert1>; + cooling-device = + <&cpu4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + }; + + vcc_3v3: regulator-vcc_3v3 { + compatible = "regulator-fixed"; + regulator-name = "VCC_3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + vddio_ao18: regulator-vddio_ao18 { + compatible = "regulator-fixed"; + regulator-name = "VDDIO_AO18"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + vddio_boot: regulator-vddio_boot { + compatible = "regulator-fixed"; + regulator-name = "VDDIO_BOOT"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + vddao_3v3: regulator-vddao_3v3 { + compatible = "regulator-fixed"; + regulator-name = "VDDAO_3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + wifi32k: wifi32k { + compatible = "pwm-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */ + }; +}; + +&cec_AO { + status = "okay"; + pinctrl-0 = <&ao_cec_pins>; + pinctrl-names = "default"; + hdmi-phandle = <&hdmi_tx>; +}; + +&cpu0 { + cooling-min-level = <0>; + cooling-max-level = <6>; + #cooling-cells = <2>; +}; + +&cpu4 { + cooling-min-level = <0>; + cooling-max-level = <4>; + #cooling-cells = <2>; +}; + +ðmac { + pinctrl-0 = <ð_pins>; + pinctrl-names = "default"; + + /* Select external PHY by default */ + phy-handle = <&external_phy>; + + amlogic,tx-delay-ns = <2>; + + /* External PHY reset is shared with internal PHY Led signals */ + snps,reset-gpio = <&gpio GPIOZ_14 0>; + snps,reset-delays-us = <0 10000 1000000>; + snps,reset-active-low; + + /* External PHY is in RGMII */ + phy-mode = "rgmii"; + + status = "okay"; +}; + +&external_mdio { + external_phy: ethernet-phy@0 { + /* Realtek RTL8211F (0x001cc916) */ + reg = <0>; + }; +}; + +&hdmi_tx { + status = "okay"; + pinctrl-0 = <&hdmi_hpd_pins>, <&hdmi_i2c_pins>; + pinctrl-names = "default"; +}; + +&hdmi_tx_tmds_port { + hdmi_tx_tmds_out: endpoint { + remote-endpoint = <&hdmi_connector_in>; + }; +}; + +&i2c_A { + status = "okay"; + pinctrl-0 = <&i2c_a_pins>; + pinctrl-names = "default"; +}; + +&i2c_B { + status = "okay"; + pinctrl-0 = <&i2c_b_pins>; + pinctrl-names = "default"; + + rtc: rtc@51 { + /* has to be enabled manually when a battery is connected: */ + status = "disabled"; + compatible = "haoyu,hym8563"; + reg = <0x51>; + #clock-cells = <0>; + clock-frequency = <32768>; + clock-output-names = "xin32k"; + }; +}; + +&ir { + status = "okay"; + pinctrl-0 = <&remote_input_ao_pins>; + pinctrl-names = "default"; + linux,rc-map-name = "rc-geekbox"; +}; + +&pwm_AO_ab { + status = "okay"; + pinctrl-0 = <&pwm_ao_a_3_pins>, <&pwm_ao_b_pins>; + pinctrl-names = "default"; + clocks = <&clkc CLKID_FCLK_DIV4>; + clock-names = "clkin0"; +}; + +&pwm_ef { + status = "okay"; + pinctrl-0 = <&pwm_e_pins>, <&pwm_f_clk_pins>; + pinctrl-names = "default"; + clocks = <&clkc CLKID_FCLK_DIV4>; + clock-names = "clkin0"; +}; + +&sd_emmc_a { + status = "okay"; + pinctrl-0 = <&sdio_pins>; + pinctrl-names = "default"; + #address-cells = <1>; + #size-cells = <0>; + + bus-width = <4>; + max-frequency = <100000000>; + + non-removable; + disable-wp; + + mmc-pwrseq = <&sdio_pwrseq>; + + vmmc-supply = <&vddao_3v3>; + vqmmc-supply = <&vddio_boot>; + + brcmf: wifi@1 { + reg = <1>; + compatible = "brcm,bcm4329-fmac"; + }; +}; + +/* SD card */ +&sd_emmc_b { + status = "okay"; + pinctrl-0 = <&sdcard_pins>; + pinctrl-names = "default"; + + bus-width = <4>; + cap-sd-highspeed; + max-frequency = <100000000>; + disable-wp; + + cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>; + cd-inverted; + + vmmc-supply = <&vddao_3v3>; + vqmmc-supply = <&vddio_boot>; +}; + +/* eMMC */ +&sd_emmc_c { + status = "okay"; + pinctrl-0 = <&emmc_pins>, <&emmc_ds_pins>; + pinctrl-names = "default"; + + bus-width = <8>; + cap-sd-highspeed; + cap-mmc-highspeed; + max-frequency = <200000000>; + non-removable; + disable-wp; + mmc-ddr-1_8v; + mmc-hs200-1_8v; + + mmc-pwrseq = <&emmc_pwrseq>; + vmmc-supply = <&vcc_3v3>; + vqmmc-supply = <&vddio_boot>; +}; + +/* + * EMMC_DS pin is shared between SPI NOR CS and eMMC Data Strobe + * Remove emmc_ds_pins from sd_emmc_c pinctrl-0 then spifc can be enabled + */ +&spifc { + status = "disabled"; + pinctrl-0 = <&nor_pins>; + pinctrl-names = "default"; + + w25q32: spi-flash@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "winbond,w25q16", "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <3000000>; + }; +}; + +/* This one is connected to the Bluetooth module */ +&uart_A { + status = "okay"; + pinctrl-0 = <&uart_a_pins>; + pinctrl-names = "default"; +}; + +/* This is brought out on the Linux_RX (18) and Linux_TX (19) pins: */ +&uart_AO { + status = "okay"; + pinctrl-0 = <&uart_ao_a_pins>; + pinctrl-names = "default"; +}; + +/* This is brought out on the UART_RX_AO_B (15) and UART_TX_AO_B (16) pins: */ +&uart_AO_B { + status = "okay"; + pinctrl-0 = <&uart_ao_b_pins>; + pinctrl-names = "default"; +}; + +&saradc { + status = "okay"; + vref-supply = <&vddio_ao18>; +}; -- cgit v1.2.3 From abe8bbd308c5f2864c1bc066a0e60ec59a0ae450 Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Tue, 3 Oct 2017 17:29:45 +0200 Subject: dt-bindings: arm: amlogic: Add Tronsmart Vega S96 binding Cc: support@tronsmart.com Acked-by: Jerome Brunet Signed-off-by: Oleg Ivanov Signed-off-by: Neil Armstrong Acked-by: Rob Herring Signed-off-by: Kevin Hilman --- Documentation/devicetree/bindings/arm/amlogic.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/amlogic.txt b/Documentation/devicetree/bindings/arm/amlogic.txt index a44599739746..da379880abb6 100644 --- a/Documentation/devicetree/bindings/arm/amlogic.txt +++ b/Documentation/devicetree/bindings/arm/amlogic.txt @@ -74,6 +74,7 @@ Board compatible values (alphabetically, grouped by SoC): - "khadas,vim2" (Meson gxm s912) - "kingnovel,r-box-pro" (Meson gxm S912) - "nexbox,a1" (Meson gxm s912) + - "tronsmart,vega-s96" (Meson gxm s912) Amlogic Meson Firmware registers Interface ------------------------------------------ -- cgit v1.2.3 From 8c1b7dc9ba2294c6dbd1870a3d2e534bfda3047a Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Mon, 14 Aug 2017 15:46:18 -0700 Subject: firmware: qcom: scm: Expose download-mode control In order to aid post-mortem debugging the Qualcomm platforms provide a "memory download mode", where the boot loader will provide an interface for custom tools to "download" the content of RAM to a host machine. The mode is triggered by writing a magic value somewhere in RAM, that is read in the boot code path after a warm-restart. Two mechanism for setting this magic value are supported in modern platforms; a direct SCM call to enable the mode or through a secure io write of a magic value. In order for a normal reboot not to trigger "download mode" the magic must be cleared during a clean reboot. Download mode has to be enabled by including qcom_scm.download_mode=1 on the command line. Reviewed-by: Stephen Boyd Signed-off-by: Bjorn Andersson Signed-off-by: Andy Gross --- .../devicetree/bindings/firmware/qcom,scm.txt | 2 + drivers/firmware/Kconfig | 11 ++++ drivers/firmware/qcom_scm-32.c | 6 ++ drivers/firmware/qcom_scm-64.c | 13 ++++ drivers/firmware/qcom_scm.c | 75 ++++++++++++++++++++++ drivers/firmware/qcom_scm.h | 2 + 6 files changed, 109 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.txt b/Documentation/devicetree/bindings/firmware/qcom,scm.txt index 20f26fbce875..7b40054be0d8 100644 --- a/Documentation/devicetree/bindings/firmware/qcom,scm.txt +++ b/Documentation/devicetree/bindings/firmware/qcom,scm.txt @@ -18,6 +18,8 @@ Required properties: * Core, iface, and bus clocks required for "qcom,scm" - clock-names: Must contain "core" for the core clock, "iface" for the interface clock and "bus" for the bus clock per the requirements of the compatible. +- qcom,dload-mode: phandle to the TCSR hardware block and offset of the + download mode control register (optional) Example for MSM8916: diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 6e4ed5a9c6fd..fa87a055905e 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -215,6 +215,17 @@ config QCOM_SCM_64 def_bool y depends on QCOM_SCM && ARM64 +config QCOM_SCM_DOWNLOAD_MODE_DEFAULT + bool "Qualcomm download mode enabled by default" + depends on QCOM_SCM + help + A device with "download mode" enabled will upon an unexpected + warm-restart enter a special debug mode that allows the user to + "download" memory content over USB for offline postmortem analysis. + The feature can be enabled/disabled on the kernel command line. + + Say Y here to enable "download mode" by default. + config TI_SCI_PROTOCOL tristate "TI System Control Interface (TISCI) Message Protocol" depends on TI_MESSAGE_MANAGER diff --git a/drivers/firmware/qcom_scm-32.c b/drivers/firmware/qcom_scm-32.c index 11fdb1584823..68b2033bc30e 100644 --- a/drivers/firmware/qcom_scm-32.c +++ b/drivers/firmware/qcom_scm-32.c @@ -561,6 +561,12 @@ int __qcom_scm_pas_mss_reset(struct device *dev, bool reset) return ret ? : le32_to_cpu(out); } +int __qcom_scm_set_dload_mode(struct device *dev, bool enable) +{ + return qcom_scm_call_atomic2(QCOM_SCM_SVC_BOOT, QCOM_SCM_SET_DLOAD_MODE, + enable ? QCOM_SCM_SET_DLOAD_MODE : 0, 0); +} + int __qcom_scm_set_remote_state(struct device *dev, u32 state, u32 id) { struct { diff --git a/drivers/firmware/qcom_scm-64.c b/drivers/firmware/qcom_scm-64.c index bf50fb59852e..3fea6f563ca9 100644 --- a/drivers/firmware/qcom_scm-64.c +++ b/drivers/firmware/qcom_scm-64.c @@ -440,6 +440,19 @@ int __qcom_scm_iommu_secure_ptbl_init(struct device *dev, u64 addr, u32 size, return ret; } +int __qcom_scm_set_dload_mode(struct device *dev, bool enable) +{ + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + + desc.args[0] = QCOM_SCM_SET_DLOAD_MODE; + desc.args[1] = enable ? QCOM_SCM_SET_DLOAD_MODE : 0; + desc.arginfo = QCOM_SCM_ARGS(2); + + return qcom_scm_call(dev, QCOM_SCM_SVC_BOOT, QCOM_SCM_SET_DLOAD_MODE, + &desc, &res); +} + int __qcom_scm_io_readl(struct device *dev, phys_addr_t addr, unsigned int *val) { diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c index e18d63935648..9064e559a01f 100644 --- a/drivers/firmware/qcom_scm.c +++ b/drivers/firmware/qcom_scm.c @@ -19,15 +19,20 @@ #include #include #include +#include #include #include #include +#include #include #include #include #include "qcom_scm.h" +static bool download_mode = IS_ENABLED(CONFIG_QCOM_SCM_DOWNLOAD_MODE_DEFAULT); +module_param(download_mode, bool, 0); + #define SCM_HAS_CORE_CLK BIT(0) #define SCM_HAS_IFACE_CLK BIT(1) #define SCM_HAS_BUS_CLK BIT(2) @@ -38,6 +43,8 @@ struct qcom_scm { struct clk *iface_clk; struct clk *bus_clk; struct reset_controller_dev reset; + + u64 dload_mode_addr; }; static struct qcom_scm *__scm; @@ -345,6 +352,54 @@ int qcom_scm_io_writel(phys_addr_t addr, unsigned int val) } EXPORT_SYMBOL(qcom_scm_io_writel); +static void qcom_scm_set_download_mode(bool enable) +{ + bool avail; + int ret = 0; + + avail = __qcom_scm_is_call_available(__scm->dev, + QCOM_SCM_SVC_BOOT, + QCOM_SCM_SET_DLOAD_MODE); + if (avail) { + ret = __qcom_scm_set_dload_mode(__scm->dev, enable); + } else if (__scm->dload_mode_addr) { + ret = __qcom_scm_io_writel(__scm->dev, __scm->dload_mode_addr, + enable ? QCOM_SCM_SET_DLOAD_MODE : 0); + } else { + dev_err(__scm->dev, + "No available mechanism for setting download mode\n"); + } + + if (ret) + dev_err(__scm->dev, "failed to set download mode: %d\n", ret); +} + +static int qcom_scm_find_dload_address(struct device *dev, u64 *addr) +{ + struct device_node *tcsr; + struct device_node *np = dev->of_node; + struct resource res; + u32 offset; + int ret; + + tcsr = of_parse_phandle(np, "qcom,dload-mode", 0); + if (!tcsr) + return 0; + + ret = of_address_to_resource(tcsr, 0, &res); + of_node_put(tcsr); + if (ret) + return ret; + + ret = of_property_read_u32_index(np, "qcom,dload-mode", 1, &offset); + if (ret < 0) + return ret; + + *addr = res.start + offset; + + return 0; +} + /** * qcom_scm_is_available() - Checks if SCM is available */ @@ -370,6 +425,10 @@ static int qcom_scm_probe(struct platform_device *pdev) if (!scm) return -ENOMEM; + ret = qcom_scm_find_dload_address(&pdev->dev, &scm->dload_mode_addr); + if (ret < 0) + return ret; + clks = (unsigned long)of_device_get_match_data(&pdev->dev); if (clks & SCM_HAS_CORE_CLK) { scm->core_clk = devm_clk_get(&pdev->dev, "core"); @@ -418,9 +477,24 @@ static int qcom_scm_probe(struct platform_device *pdev) __qcom_scm_init(); + /* + * If requested enable "download mode", from this point on warmboot + * will cause the the boot stages to enter download mode, unless + * disabled below by a clean shutdown/reboot. + */ + if (download_mode) + qcom_scm_set_download_mode(true); + return 0; } +static void qcom_scm_shutdown(struct platform_device *pdev) +{ + /* Clean shutdown, disable download mode to allow normal restart */ + if (download_mode) + qcom_scm_set_download_mode(false); +} + static const struct of_device_id qcom_scm_dt_match[] = { { .compatible = "qcom,scm-apq8064", /* FIXME: This should have .data = (void *) SCM_HAS_CORE_CLK */ @@ -448,6 +522,7 @@ static struct platform_driver qcom_scm_driver = { .of_match_table = qcom_scm_dt_match, }, .probe = qcom_scm_probe, + .shutdown = qcom_scm_shutdown, }; static int __init qcom_scm_init(void) diff --git a/drivers/firmware/qcom_scm.h b/drivers/firmware/qcom_scm.h index a60e4b9b1394..83f171c23943 100644 --- a/drivers/firmware/qcom_scm.h +++ b/drivers/firmware/qcom_scm.h @@ -14,9 +14,11 @@ #define QCOM_SCM_SVC_BOOT 0x1 #define QCOM_SCM_BOOT_ADDR 0x1 +#define QCOM_SCM_SET_DLOAD_MODE 0x10 #define QCOM_SCM_BOOT_ADDR_MC 0x11 #define QCOM_SCM_SET_REMOTE_STATE 0xa extern int __qcom_scm_set_remote_state(struct device *dev, u32 state, u32 id); +extern int __qcom_scm_set_dload_mode(struct device *dev, bool enable); #define QCOM_SCM_FLAG_HLOS 0x01 #define QCOM_SCM_FLAG_COLDBOOT_MC 0x02 -- cgit v1.2.3 From 726b99c4f73c2e386c4ec5aa90d5124489573bd2 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Thu, 24 Aug 2017 20:51:35 +0200 Subject: KVM: x86: document special identity map address value MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Setting it to 0 leads to setting it to the default value, let's document this. Reviewed-by: Radim Krčmář Signed-off-by: David Hildenbrand Signed-off-by: Radim Krčmář --- Documentation/virtual/kvm/api.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index e63a35fafef0..22bc5a052a5d 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -1124,6 +1124,9 @@ guest physical address space and must not conflict with any memory slot or any mmio address. The guest may malfunction if it accesses this memory region. +Setting the address to 0 will result in resetting the address to its default +(0xfffbc000). + This ioctl is required on Intel-based hosts. This is needed on Intel hardware because of a quirk in the virtualization implementation (see the internals documentation when it pops into existence). -- cgit v1.2.3 From 1af1ac910bb3394ac1c0062f5781983dde40a8c0 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Thu, 24 Aug 2017 20:51:36 +0200 Subject: KVM: x86: allow setting identity map addr with no vcpus only MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Changing it afterwards doesn't make too much sense and will only result in inconsistencies. Reviewed-by: Radim Krčmář Signed-off-by: David Hildenbrand Signed-off-by: Radim Krčmář --- Documentation/virtual/kvm/api.txt | 1 + arch/x86/kvm/x86.c | 8 +++++++- 2 files changed, 8 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 22bc5a052a5d..dd2dd96927b8 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -1131,6 +1131,7 @@ This ioctl is required on Intel-based hosts. This is needed on Intel hardware because of a quirk in the virtualization implementation (see the internals documentation when it pops into existence). +Fails if any VCPU has already been created. 4.41 KVM_SET_BOOT_CPU_ID diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 632561b2a3f6..b0d291518e88 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4034,10 +4034,16 @@ long kvm_arch_vm_ioctl(struct file *filp, case KVM_SET_IDENTITY_MAP_ADDR: { u64 ident_addr; + mutex_lock(&kvm->lock); + r = -EINVAL; + if (kvm->created_vcpus) + goto set_identity_unlock; r = -EFAULT; if (copy_from_user(&ident_addr, argp, sizeof ident_addr)) - goto out; + goto set_identity_unlock; r = kvm_vm_ioctl_set_identity_map_addr(kvm, ident_addr); +set_identity_unlock: + mutex_unlock(&kvm->lock); break; } case KVM_SET_NR_MMU_PAGES: -- cgit v1.2.3 From a335b122ba277c879d224b41e52fcfdf334266b0 Mon Sep 17 00:00:00 2001 From: Hou Zhiqiang Date: Tue, 19 Sep 2017 17:26:56 +0800 Subject: PCI: layerscape: Add support for ls1012a Add support for ls1012a. Signed-off-by: Hou Zhiqiang Signed-off-by: Bjorn Helgaas Acked-by: Rob Herring Acked-by: Minghuan Lian Acked-by: Thomas Gleixner --- Documentation/devicetree/bindings/pci/layerscape-pci.txt | 1 + drivers/pci/dwc/pci-layerscape.c | 1 + 2 files changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt index c0484da0f20d..66df1e81e0b8 100644 --- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt +++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt @@ -18,6 +18,7 @@ Required properties: "fsl,ls2088a-pcie" "fsl,ls1088a-pcie" "fsl,ls1046a-pcie" + "fsl,ls1012a-pcie" - reg: base addresses and lengths of the PCIe controller register blocks. - interrupts: A list of interrupt outputs of the controller. Must contain an entry for each entry in the interrupt-names property. diff --git a/drivers/pci/dwc/pci-layerscape.c b/drivers/pci/dwc/pci-layerscape.c index 87fa486bee2c..3b01e309a55e 100644 --- a/drivers/pci/dwc/pci-layerscape.c +++ b/drivers/pci/dwc/pci-layerscape.c @@ -253,6 +253,7 @@ static struct ls_pcie_drvdata ls2088_drvdata = { }; static const struct of_device_id ls_pcie_of_match[] = { + { .compatible = "fsl,ls1012a-pcie", .data = &ls1046_drvdata }, { .compatible = "fsl,ls1021a-pcie", .data = &ls1021_drvdata }, { .compatible = "fsl,ls1043a-pcie", .data = &ls1043_drvdata }, { .compatible = "fsl,ls1046a-pcie", .data = &ls1046_drvdata }, -- cgit v1.2.3 From d5cdbb875f5c450bf9ee950008a2865343c1775c Mon Sep 17 00:00:00 2001 From: Shuah Khan Date: Mon, 2 Oct 2017 17:44:17 -0600 Subject: doc: dev-tools: kselftest.rst: update to include make O=dir support Update to include details on make O=dir support and other changes improve test results output. Signed-off-by: Shuah Khan [jc: Tweaked RST formatting slightly ] Signed-off-by: Jonathan Corbet --- Documentation/dev-tools/kselftest.rst | 34 ++++++++++++++++++++++++++++++++-- 1 file changed, 32 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst index ebd03d11d2c2..e80850eefe13 100644 --- a/Documentation/dev-tools/kselftest.rst +++ b/Documentation/dev-tools/kselftest.rst @@ -31,6 +31,17 @@ To build and run the tests with a single command, use:: Note that some tests will require root privileges. +Build and run from user specific object directory (make O=dir):: + + $ make O=/tmp/kselftest kselftest + +Build and run KBUILD_OUTPUT directory (make KBUILD_OUTPUT=):: + + $ make KBUILD_OUTPUT=/tmp/kselftest kselftest + +The above commands run the tests and print pass/fail summary to make it +easier to understand the test results. Please find the detailed individual +test results for each test in /tmp/testname file(s). Running a subset of selftests ============================= @@ -46,10 +57,21 @@ You can specify multiple tests to build and run:: $ make TARGETS="size timers" kselftest +Build and run from user specific object directory (make O=dir):: + + $ make O=/tmp/kselftest TARGETS="size timers" kselftest + +Build and run KBUILD_OUTPUT directory (make KBUILD_OUTPUT=):: + + $ make KBUILD_OUTPUT=/tmp/kselftest TARGETS="size timers" kselftest + +The above commands run the tests and print pass/fail summary to make it +easier to understand the test results. Please find the detailed individual +test results for each test in /tmp/testname file(s). + See the top-level tools/testing/selftests/Makefile for the list of all possible targets. - Running the full range hotplug selftests ======================================== @@ -113,9 +135,17 @@ Contributing new tests (details) * Use TEST_GEN_XXX if such binaries or files are generated during compiling. - TEST_PROGS, TEST_GEN_PROGS mean it is the excutable tested by + TEST_PROGS, TEST_GEN_PROGS mean it is the executable tested by default. + TEST_CUSTOM_PROGS should be used by tests that require custom build + rule and prevent common build rule use. + + TEST_PROGS are for test shell scripts. Please ensure shell script has + its exec bit set. Otherwise, lib.mk run_tests will generate a warning. + + TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests. + TEST_PROGS_EXTENDED, TEST_GEN_PROGS_EXTENDED mean it is the executable which is not tested by default. TEST_FILES, TEST_GEN_FILES mean it is the file which is used by -- cgit v1.2.3 From 9effc8f70b87cf0c02a2ce264257c34a5fe885d5 Mon Sep 17 00:00:00 2001 From: Shuah Khan Date: Mon, 2 Oct 2017 17:44:18 -0600 Subject: doc: enhance dochelp include default output location for doc build Enhance documentation help message to specify the default location for the generated documents. Signed-off-by: Shuah Khan Signed-off-by: Jonathan Corbet --- Documentation/Makefile | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/Makefile b/Documentation/Makefile index 85f7856f0092..5e65fa5c6ab7 100644 --- a/Documentation/Makefile +++ b/Documentation/Makefile @@ -116,3 +116,5 @@ dochelp: @echo @echo ' make SPHINX_CONF={conf-file} [target] use *additional* sphinx-build' @echo ' configuration. This is e.g. useful to build with nit-picking config.' + @echo + @echo ' Default location for the generated documents is Documentation/output' -- cgit v1.2.3 From e8939222dced668fc5cae02b0b601af069801107 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 9 Oct 2017 18:26:15 +0300 Subject: Documentation: add script and build target to check for broken file references Add a simple script and build target to do a treewide grep for references to files under Documentation, and report the non-existing file in stderr. It tries to take into account punctuation not part of the filename, and wildcards, but there are bound to be false positives too. Mostly seems accurate though. We've moved files around enough to make having this worthwhile. Signed-off-by: Jani Nikula Signed-off-by: Jonathan Corbet --- Documentation/Makefile | 4 ++++ Makefile | 3 ++- scripts/documentation-file-ref-check | 15 +++++++++++++++ 3 files changed, 21 insertions(+), 1 deletion(-) create mode 100755 scripts/documentation-file-ref-check (limited to 'Documentation') diff --git a/Documentation/Makefile b/Documentation/Makefile index 5e65fa5c6ab7..2ca77ad0f238 100644 --- a/Documentation/Makefile +++ b/Documentation/Makefile @@ -97,6 +97,9 @@ endif # HAVE_SPHINX # The following targets are independent of HAVE_SPHINX, and the rules should # work or silently pass without Sphinx. +refcheckdocs: + $(Q)cd $(srctree);scripts/documentation-file-ref-check + cleandocs: $(Q)rm -rf $(BUILDDIR) $(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media clean @@ -109,6 +112,7 @@ dochelp: @echo ' epubdocs - EPUB' @echo ' xmldocs - XML' @echo ' linkcheckdocs - check for broken external links (will connect to external hosts)' + @echo ' refcheckdocs - check for references to non-existing files under Documentation' @echo ' cleandocs - clean all generated files' @echo @echo ' make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2' diff --git a/Makefile b/Makefile index bcb20d2c1eac..11df924e160a 100644 --- a/Makefile +++ b/Makefile @@ -1454,7 +1454,8 @@ $(help-board-dirs): help-%: # Documentation targets # --------------------------------------------------------------------------- -DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs linkcheckdocs dochelp +DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ + linkcheckdocs dochelp refcheckdocs PHONY += $(DOC_TARGETS) $(DOC_TARGETS): scripts_basic FORCE $(Q)$(MAKE) $(build)=Documentation $@ diff --git a/scripts/documentation-file-ref-check b/scripts/documentation-file-ref-check new file mode 100755 index 000000000000..bc1659900e89 --- /dev/null +++ b/scripts/documentation-file-ref-check @@ -0,0 +1,15 @@ +#!/bin/sh +# Treewide grep for references to files under Documentation, and report +# non-existing files in stderr. + +for f in $(git ls-files); do + for ref in $(grep -ho "Documentation/[A-Za-z0-9_.,~/*+-]*" "$f"); do + # presume trailing . and , are not part of the name + ref=${ref%%[.,]} + + # use ls to handle wildcards + if ! ls $ref >/dev/null 2>&1; then + echo "$f: $ref" >&2 + fi + done +done -- cgit v1.2.3 From 66ccc64f2c3b934f065811160be288cb9a2815ef Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Tue, 10 Oct 2017 12:36:09 -0500 Subject: Documentation: fix driver-api doc refs Make driver-api document refs valid. Signed-off-by: Tom Saeger Acked-by: Rafael J. Wysocki Signed-off-by: Jonathan Corbet --- Documentation/power/pci.txt | 10 +++++----- Documentation/power/runtime_pm.txt | 2 +- Documentation/process/submitting-drivers.rst | 2 +- 3 files changed, 7 insertions(+), 7 deletions(-) (limited to 'Documentation') diff --git a/Documentation/power/pci.txt b/Documentation/power/pci.txt index a1b7f7158930..d17fdf8f45ef 100644 --- a/Documentation/power/pci.txt +++ b/Documentation/power/pci.txt @@ -8,7 +8,7 @@ management. Based on previous work by Patrick Mochel This document only covers the aspects of power management specific to PCI devices. For general description of the kernel's interfaces related to device -power management refer to Documentation/power/admin-guide/devices.rst and +power management refer to Documentation/driver-api/pm/devices.rst and Documentation/power/runtime_pm.txt. --------------------------------------------------------------------------- @@ -417,7 +417,7 @@ pm->runtime_idle() callback. 2.4. System-Wide Power Transitions ---------------------------------- There are a few different types of system-wide power transitions, described in -Documentation/power/admin-guide/devices.rst. Each of them requires devices to be handled +Documentation/driver-api/pm/devices.rst. Each of them requires devices to be handled in a specific way and the PM core executes subsystem-level power management callbacks for this purpose. They are executed in phases such that each phase involves executing the same subsystem-level callback for every device belonging @@ -623,7 +623,7 @@ System restore requires a hibernation image to be loaded into memory and the pre-hibernation memory contents to be restored before the pre-hibernation system activity can be resumed. -As described in Documentation/power/admin-guide/devices.rst, the hibernation image is loaded +As described in Documentation/driver-api/pm/devices.rst, the hibernation image is loaded into memory by a fresh instance of the kernel, called the boot kernel, which in turn is loaded and run by a boot loader in the usual way. After the boot kernel has loaded the image, it needs to replace its own code and data with the code @@ -677,7 +677,7 @@ controlling the runtime power management of their devices. At the time of this writing there are two ways to define power management callbacks for a PCI device driver, the recommended one, based on using a -dev_pm_ops structure described in Documentation/power/admin-guide/devices.rst, and the +dev_pm_ops structure described in Documentation/driver-api/pm/devices.rst, and the "legacy" one, in which the .suspend(), .suspend_late(), .resume_early(), and .resume() callbacks from struct pci_driver are used. The legacy approach, however, doesn't allow one to define runtime power management callbacks and is @@ -1046,5 +1046,5 @@ PCI Local Bus Specification, Rev. 3.0 PCI Bus Power Management Interface Specification, Rev. 1.2 Advanced Configuration and Power Interface (ACPI) Specification, Rev. 3.0b PCI Express Base Specification, Rev. 2.0 -Documentation/power/admin-guide/devices.rst +Documentation/driver-api/pm/devices.rst Documentation/power/runtime_pm.txt diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt index 625549d4c74a..57af2f7963ee 100644 --- a/Documentation/power/runtime_pm.txt +++ b/Documentation/power/runtime_pm.txt @@ -680,7 +680,7 @@ left in runtime suspend. If that happens, the PM core will not execute any system suspend and resume callbacks for all of those devices, except for the complete callback, which is then entirely responsible for handling the device as appropriate. This only applies to system suspend transitions that are not -related to hibernation (see Documentation/power/admin-guide/devices.rst for more +related to hibernation (see Documentation/driver-api/pm/devices.rst for more information). The PM core does its best to reduce the probability of race conditions between diff --git a/Documentation/process/submitting-drivers.rst b/Documentation/process/submitting-drivers.rst index afb82ee0cbea..b38bf2054ce3 100644 --- a/Documentation/process/submitting-drivers.rst +++ b/Documentation/process/submitting-drivers.rst @@ -117,7 +117,7 @@ PM support: anything. For the driver testing instructions see Documentation/power/drivers-testing.txt and for a relatively complete overview of the power management issues related to - drivers see Documentation/power/admin-guide/devices.rst . + drivers see Documentation/driver-api/pm/devices.rst. Control: In general if there is active maintenance of a driver by -- cgit v1.2.3 From 3ba9b1b814fe37ba3267b58917a73dc69eebde40 Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Tue, 10 Oct 2017 12:36:16 -0500 Subject: Documentation: fix admin-guide doc refs Make admin-guide document refs valid. Signed-off-by: Tom Saeger Acked-by: Rafael J. Wysocki Signed-off-by: Jonathan Corbet --- Documentation/ABI/stable/sysfs-devices | 2 +- Documentation/ABI/testing/sysfs-devices-system-cpu | 6 ++++-- Documentation/ABI/testing/sysfs-power | 6 ++++-- Documentation/admin-guide/README.rst | 2 +- Documentation/admin-guide/kernel-parameters.txt | 2 +- Documentation/admin-guide/reporting-bugs.rst | 4 ++-- Documentation/laptops/laptop-mode.txt | 6 +++--- Documentation/media/v4l-drivers/bttv.rst | 2 +- Documentation/power/interface.txt | 3 ++- 9 files changed, 19 insertions(+), 14 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/stable/sysfs-devices b/Documentation/ABI/stable/sysfs-devices index 35c457f8ce73..4404bd9b96c1 100644 --- a/Documentation/ABI/stable/sysfs-devices +++ b/Documentation/ABI/stable/sysfs-devices @@ -1,5 +1,5 @@ # Note: This documents additional properties of any device beyond what -# is documented in Documentation/sysfs-rules.txt +# is documented in Documentation/admin-guide/sysfs-rules.rst What: /sys/devices/*/of_node Date: February 2015 diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index f3d5817c4ef0..d6d862db3b5d 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -187,7 +187,8 @@ Description: Processor frequency boosting control This switch controls the boost setting for the whole system. Boosting allows the CPU and the firmware to run at a frequency beyound it's nominal limit. - More details can be found in Documentation/cpu-freq/boost.txt + More details can be found in + Documentation/admin-guide/pm/cpufreq.rst What: /sys/devices/system/cpu/cpu#/crash_notes @@ -223,7 +224,8 @@ Description: Parameters for the Intel P-state driver no_turbo: limits the driver to selecting P states below the turbo frequency range. - More details can be found in Documentation/cpu-freq/intel-pstate.txt + More details can be found in + Documentation/admin-guide/pm/intel_pstate.rst What: /sys/devices/system/cpu/cpu*/cache/index*/ Date: July 2014(documented, existed before August 2008) diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power index 713cab1d5f12..4b2e13e5f020 100644 --- a/Documentation/ABI/testing/sysfs-power +++ b/Documentation/ABI/testing/sysfs-power @@ -18,7 +18,8 @@ Description: Writing one of the above strings to this file causes the system to transition into the corresponding state, if available. - See Documentation/power/states.txt for more information. + See Documentation/admin-guide/pm/sleep-states.rst for more + information. What: /sys/power/mem_sleep Date: November 2016 @@ -35,7 +36,8 @@ Description: represented by it to be used on subsequent attempts to suspend the system. - See Documentation/power/states.txt for more information. + See Documentation/admin-guide/pm/sleep-states.rst for more + information. What: /sys/power/disk Date: September 2006 diff --git a/Documentation/admin-guide/README.rst b/Documentation/admin-guide/README.rst index b5343c5aa224..63066db39910 100644 --- a/Documentation/admin-guide/README.rst +++ b/Documentation/admin-guide/README.rst @@ -350,7 +350,7 @@ If something goes wrong help debugging the problem. The text above the dump is also important: it tells something about why the kernel dumped code (in the above example, it's due to a bad kernel pointer). More information - on making sense of the dump is in Documentation/admin-guide/oops-tracing.rst + on making sense of the dump is in Documentation/admin-guide/bug-hunting.rst - If you compiled the kernel with CONFIG_KALLSYMS you can send the dump as is, otherwise you will have to use the ``ksymoops`` program to make diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a3427399fd07..957b931cc84c 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3134,7 +3134,7 @@ plip= [PPT,NET] Parallel port network link Format: { parport | timid | 0 } - See also Documentation/parport.txt. + See also Documentation/admin-guide/parport.rst. pmtmr= [X86] Manual setup of pmtmr I/O Port. Override pmtimer IOPort with a hex value. diff --git a/Documentation/admin-guide/reporting-bugs.rst b/Documentation/admin-guide/reporting-bugs.rst index 26b60b419652..4650edb8840a 100644 --- a/Documentation/admin-guide/reporting-bugs.rst +++ b/Documentation/admin-guide/reporting-bugs.rst @@ -94,7 +94,7 @@ step-by-step instructions for how a user can trigger the bug. If the failure includes an "OOPS:", take a picture of the screen, capture a netconsole trace, or type the message from your screen into the bug -report. Please read "Documentation/admin-guide/oops-tracing.rst" before posting your +report. Please read "Documentation/admin-guide/bug-hunting.rst" before posting your bug report. This explains what you should do with the "Oops" information to make it useful to the recipient. @@ -120,7 +120,7 @@ summary from [1.]>" for easy identification by the developers:: [4.2.] Kernel .config file: [5.] Most recent kernel version which did not have the bug: [6.] Output of Oops.. message (if applicable) with symbolic information - resolved (see Documentation/admin-guide/oops-tracing.rst) + resolved (see Documentation/admin-guide/bug-hunting.rst) [7.] A small shell script or example program which triggers the problem (if possible) [8.] Environment diff --git a/Documentation/laptops/laptop-mode.txt b/Documentation/laptops/laptop-mode.txt index 19276f5d195c..1c707fc9b141 100644 --- a/Documentation/laptops/laptop-mode.txt +++ b/Documentation/laptops/laptop-mode.txt @@ -184,7 +184,7 @@ is done when dirty_ratio is reached. DO_CPU: Enable CPU frequency scaling when in laptop mode. (Requires CPUFreq to be setup. -See Documentation/cpu-freq/user-guide.txt for more info. Disabled by default.) +See Documentation/admin-guide/pm/cpufreq.rst for more info. Disabled by default.) CPU_MAXFREQ: @@ -287,7 +287,7 @@ MINIMUM_BATTERY_MINUTES=10 # Should the maximum CPU frequency be adjusted down while on battery? # Requires CPUFreq to be setup. -# See Documentation/cpu-freq/user-guide.txt for more info +# See Documentation/admin-guide/pm/cpufreq.rst for more info #DO_CPU=0 # When on battery what is the maximum CPU speed that the system should @@ -378,7 +378,7 @@ BATT_HD=${BATT_HD:-'4'} DIRTY_RATIO=${DIRTY_RATIO:-'40'} # cpu frequency scaling -# See Documentation/cpu-freq/user-guide.txt for more info +# See Documentation/admin-guide/pm/cpufreq.rst for more info DO_CPU=${CPU_MANAGE:-'0'} CPU_MAXFREQ=${CPU_MAXFREQ:-'slowest'} diff --git a/Documentation/media/v4l-drivers/bttv.rst b/Documentation/media/v4l-drivers/bttv.rst index 195ccaac2816..5f35e2fb5afa 100644 --- a/Documentation/media/v4l-drivers/bttv.rst +++ b/Documentation/media/v4l-drivers/bttv.rst @@ -307,7 +307,7 @@ console and let some terminal application log the messages. /me uses screen. See Documentation/admin-guide/serial-console.rst for details on setting up a serial console. -Read Documentation/admin-guide/oops-tracing.rst to learn how to get any useful +Read Documentation/admin-guide/bug-hunting.rst to learn how to get any useful information out of a register+stack dump printed by the kernel on protection faults (so-called "kernel oops"). diff --git a/Documentation/power/interface.txt b/Documentation/power/interface.txt index 974916ff6608..7dc75f48e8bd 100644 --- a/Documentation/power/interface.txt +++ b/Documentation/power/interface.txt @@ -24,7 +24,8 @@ platform. If one of the strings listed in /sys/power/state is written to it, the system will attempt to transition into the corresponding sleep state. Refer to -Documentation/power/states.txt for a description of each of those states. +Documentation/admin-guide/pm/sleep-states.rst for a description of each of +those states. /sys/power/disk controls the operating mode of hibernation (Suspend-to-Disk). Specifically, it tells the kernel what to do after creating a hibernation image. -- cgit v1.2.3 From 1752118d48e7627756acf7fb8c13541305078fed Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Tue, 10 Oct 2017 12:36:23 -0500 Subject: Documentation: fix input related doc refs Make `input` document refs valid including: - joystick - joystick-parport Signed-off-by: Tom Saeger Reviewed-by: Takashi Iwai Signed-off-by: Jonathan Corbet --- Documentation/admin-guide/kernel-parameters.txt | 10 +++++----- Documentation/hid/hiddev.txt | 2 +- Documentation/input/devices/xpad.rst | 3 ++- Documentation/sound/cards/joystick.rst | 2 +- 4 files changed, 9 insertions(+), 8 deletions(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 957b931cc84c..f478f2402af1 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -314,7 +314,7 @@ amijoy.map= [HW,JOY] Amiga joystick support Map of devices attached to JOY0DAT and JOY1DAT Format: , - See also Documentation/input/joystick.txt + See also Documentation/input/joydev/joystick.rst analog.map= [HW,JOY] Analog joystick and gamepad support Specifies type or capabilities of an analog joystick @@ -724,7 +724,7 @@ db9.dev[2|3]= [HW,JOY] Multisystem joystick support via parallel port (one device per port) Format: , - See also Documentation/input/joystick-parport.txt + See also Documentation/input/devices/joystick-parport.rst ddebug_query= [KNL,DYNAMIC_DEBUG] Enable debug messages at early boot time. See @@ -1220,7 +1220,7 @@ [HW,JOY] Multisystem joystick and NES/SNES/PSX pad support via parallel port (up to 5 devices per port) Format: ,,,,, - See also Documentation/input/joystick-parport.txt + See also Documentation/input/devices/joystick-parport.rst gamma= [HW,DRM] @@ -1766,7 +1766,7 @@ ivrs_acpihid[00:14.5]=AMD0020:0 js= [HW,JOY] Analog joystick - See Documentation/input/joystick.txt. + See Documentation/input/joydev/joystick.rst. nokaslr [KNL] When CONFIG_RANDOMIZE_BASE is set, this disables @@ -4205,7 +4205,7 @@ TurboGraFX parallel port interface Format: ,,,,,,, - See also Documentation/input/joystick-parport.txt + See also Documentation/input/devices/joystick-parport.rst udbg-immortal [PPC] When debugging early kernel crashes that happen after console_init() and before a proper diff --git a/Documentation/hid/hiddev.txt b/Documentation/hid/hiddev.txt index 6e8c9f1d2f22..638448707aa2 100644 --- a/Documentation/hid/hiddev.txt +++ b/Documentation/hid/hiddev.txt @@ -12,7 +12,7 @@ To support these disparate requirements, the Linux USB system provides HID events to two separate interfaces: * the input subsystem, which converts HID events into normal input device interfaces (such as keyboard, mouse and joystick) and a -normalised event interface - see Documentation/input/input.txt +normalised event interface - see Documentation/input/input.rst * the hiddev interface, which provides fairly raw HID events The data flow for a HID event produced by a device is something like diff --git a/Documentation/input/devices/xpad.rst b/Documentation/input/devices/xpad.rst index 5a709ab77c8d..b8bd65962dd8 100644 --- a/Documentation/input/devices/xpad.rst +++ b/Documentation/input/devices/xpad.rst @@ -230,4 +230,5 @@ Historic Edits 2005-03-19 - Dominic Cerquetti - added stuff for dance pads, new d-pad->axes mappings -Later changes may be viewed with 'git log Documentation/input/xpad.txt' +Later changes may be viewed with +'git log --follow Documentation/input/devices/xpad.rst' diff --git a/Documentation/sound/cards/joystick.rst b/Documentation/sound/cards/joystick.rst index a6e468c81d02..488946fc1079 100644 --- a/Documentation/sound/cards/joystick.rst +++ b/Documentation/sound/cards/joystick.rst @@ -11,7 +11,7 @@ General First of all, you need to enable GAMEPORT support on Linux kernel for using a joystick with the ALSA driver. For the details of gameport -support, refer to Documentation/input/joystick.txt. +support, refer to Documentation/input/joydev/joystick.rst. The joystick support of ALSA drivers is different between ISA and PCI cards. In the case of ISA (PnP) cards, it's usually handled by the -- cgit v1.2.3 From c7f66400f504fd54bda6ec644853c07333e8cb87 Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Tue, 10 Oct 2017 12:36:30 -0500 Subject: Documentation: fix security related doc refs Make security document refs valid. Signed-off-by: Tom Saeger Signed-off-by: Jonathan Corbet --- Documentation/ABI/testing/evm | 4 ++-- Documentation/security/LSM.rst | 2 +- Documentation/security/credentials.rst | 2 +- Documentation/security/keys/request-key.rst | 2 +- 4 files changed, 5 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/evm b/Documentation/ABI/testing/evm index 8374d4557e5d..ca622c9aa24c 100644 --- a/Documentation/ABI/testing/evm +++ b/Documentation/ABI/testing/evm @@ -18,6 +18,6 @@ Description: in the initramfs, which has already been measured as part of the trusted boot. For more information on creating and loading existing trusted/encrypted keys, refer to: - Documentation/keys-trusted-encrypted.txt. (A sample dracut - patch, which loads the trusted/encrypted key and enables + Documentation/security/keys/trusted-encrypted.rst. (A sample + dracut patch, which loads the trusted/encrypted key and enables EVM, is available from http://linux-ima.sourceforge.net/#EVM.) diff --git a/Documentation/security/LSM.rst b/Documentation/security/LSM.rst index d75778b0fa10..98522e0e1ee2 100644 --- a/Documentation/security/LSM.rst +++ b/Documentation/security/LSM.rst @@ -5,7 +5,7 @@ Linux Security Module Development Based on https://lkml.org/lkml/2007/10/26/215, a new LSM is accepted into the kernel when its intent (a description of what it tries to protect against and in what cases one would expect to -use it) has been appropriately documented in ``Documentation/security/LSM``. +use it) has been appropriately documented in ``Documentation/security/LSM.rst``. This allows an LSM's code to be easily compared to its goals, and so that end users and distros can make a more informed decision about which LSMs suit their requirements. diff --git a/Documentation/security/credentials.rst b/Documentation/security/credentials.rst index 038a7e19eff9..66a2e24939d8 100644 --- a/Documentation/security/credentials.rst +++ b/Documentation/security/credentials.rst @@ -196,7 +196,7 @@ The Linux kernel supports the following types of credentials: When a process accesses a key, if not already present, it will normally be cached on one of these keyrings for future accesses to find. - For more information on using keys, see Documentation/security/keys.txt. + For more information on using keys, see ``Documentation/security/keys/*``. 5. LSM diff --git a/Documentation/security/keys/request-key.rst b/Documentation/security/keys/request-key.rst index b2d16abaa9e9..21e27238cec6 100644 --- a/Documentation/security/keys/request-key.rst +++ b/Documentation/security/keys/request-key.rst @@ -3,7 +3,7 @@ Key Request Service =================== The key request service is part of the key retention service (refer to -Documentation/security/core.rst). This document explains more fully how +Documentation/security/keys/core.rst). This document explains more fully how the requesting algorithm works. The process starts by either the kernel requesting a service by calling -- cgit v1.2.3 From a405ed85ca170f5a6cc512a3ff492f77b5e63f15 Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Tue, 10 Oct 2017 12:36:37 -0500 Subject: Documentation: fix media related doc refs Make media doc refs valid. Signed-off-by: Tom Saeger Signed-off-by: Jonathan Corbet --- Documentation/admin-guide/kernel-parameters.txt | 4 ++-- Documentation/media/dvb-drivers/bt8xx.rst | 8 ++++---- Documentation/media/uapi/v4l/dev-sliced-vbi.rst | 2 +- Documentation/media/uapi/v4l/extended-controls.rst | 2 +- Documentation/media/uapi/v4l/pixfmt-reserved.rst | 2 +- Documentation/media/v4l-drivers/max2175.rst | 2 +- 6 files changed, 10 insertions(+), 10 deletions(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index f478f2402af1..97a76eea7389 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -439,7 +439,7 @@ bttv.card= [HW,V4L] bttv (bt848 + bt878 based grabber cards) bttv.radio= Most important insmod options are available as kernel args too. - bttv.pll= See Documentation/video4linux/bttv/Insmod-options + bttv.pll= See Documentation/media/v4l-drivers/bttv.rst bttv.tuner= bulk_remove=off [PPC] This parameter disables the use of the pSeries @@ -2251,7 +2251,7 @@ See Documentation/admin-guide/pm/sleep-states.rst. meye.*= [HW] Set MotionEye Camera parameters - See Documentation/video4linux/meye.txt. + See Documentation/media/v4l-drivers/meye.rst. mfgpt_irq= [IA-32] Specify the IRQ to use for the Multi-Function General Purpose Timers on AMD Geode diff --git a/Documentation/media/dvb-drivers/bt8xx.rst b/Documentation/media/dvb-drivers/bt8xx.rst index b43958b7340c..e3e387bdf498 100644 --- a/Documentation/media/dvb-drivers/bt8xx.rst +++ b/Documentation/media/dvb-drivers/bt8xx.rst @@ -18,7 +18,7 @@ General information This class of cards has a bt878a as the PCI interface, and require the bttv driver for accessing the i2c bus and the gpio pins of the bt8xx chipset. -Please see Documentation/dvb/cards.txt => o Cards based on the Conexant Bt8xx PCI bridge: +Please see Documentation/media/dvb-drivers/cards.rst => o Cards based on the Conexant Bt8xx PCI bridge: Compiling kernel please enable: @@ -45,7 +45,7 @@ Loading Modules Regular case: If the bttv driver detects a bt8xx-based DVB card, all frontend and backend modules will be loaded automatically. Exceptions are: - Old TwinHan DST cards or clones with or without CA slot and not containing an Eeprom. -People running udev please see Documentation/dvb/udev.txt. +People running udev please see Documentation/media/dvb-drivers/udev.rst. In the following cases overriding the PCI type detection for dvb-bt8xx might be necessary: @@ -72,7 +72,7 @@ Useful parameters for verbosity level and debugging the dst module: The autodetected values are determined by the cards' "response string". In your logs see f. ex.: dst_get_device_id: Recognize [DSTMCI]. For bug reports please send in a complete log with verbose=4 activated. -Please also see Documentation/dvb/ci.txt. +Please also see Documentation/media/dvb-drivers/ci.rst. Running multiple cards ~~~~~~~~~~~~~~~~~~~~~~ @@ -100,7 +100,7 @@ Examples of card ID's: $ modprobe bttv card=113 card=135 -For a full list of card ID's please see Documentation/video4linux/CARDLIST.bttv. +For a full list of card ID's please see Documentation/media/v4l-drivers/bttv-cardlist.rst. In case of further problems please subscribe and send questions to the mailing list: linux-dvb@linuxtv.org. Probing the cards with broken PCI subsystem ID diff --git a/Documentation/media/uapi/v4l/dev-sliced-vbi.rst b/Documentation/media/uapi/v4l/dev-sliced-vbi.rst index 9d6c860271cb..d311a6866b3b 100644 --- a/Documentation/media/uapi/v4l/dev-sliced-vbi.rst +++ b/Documentation/media/uapi/v4l/dev-sliced-vbi.rst @@ -431,7 +431,7 @@ MPEG stream. *Historical context*: This format specification originates from a custom, embedded, sliced VBI data format used by the ``ivtv`` driver. This format has already been informally specified in the kernel sources -in the file ``Documentation/video4linux/cx2341x/README.vbi`` . The +in the file ``Documentation/media/v4l-drivers/cx2341x.rst`` . The maximum size of the payload and other aspects of this format are driven by the CX23415 MPEG decoder's capabilities and limitations with respect to extracting, decoding, and displaying sliced VBI data embedded within diff --git a/Documentation/media/uapi/v4l/extended-controls.rst b/Documentation/media/uapi/v4l/extended-controls.rst index a3e81c1d276b..dfe49ae57e78 100644 --- a/Documentation/media/uapi/v4l/extended-controls.rst +++ b/Documentation/media/uapi/v4l/extended-controls.rst @@ -284,7 +284,7 @@ enum v4l2_mpeg_stream_vbi_fmt - * - ``V4L2_MPEG_STREAM_VBI_FMT_IVTV`` - VBI in private packets, IVTV format (documented in the kernel sources in the file - ``Documentation/video4linux/cx2341x/README.vbi``) + ``Documentation/media/v4l-drivers/cx2341x.rst``) diff --git a/Documentation/media/uapi/v4l/pixfmt-reserved.rst b/Documentation/media/uapi/v4l/pixfmt-reserved.rst index 521adb795535..38af1472a4b4 100644 --- a/Documentation/media/uapi/v4l/pixfmt-reserved.rst +++ b/Documentation/media/uapi/v4l/pixfmt-reserved.rst @@ -52,7 +52,7 @@ please make a proposal on the linux-media mailing list. `http://www.ivtvdriver.org/ `__ The format is documented in the kernel sources in the file - ``Documentation/video4linux/cx2341x/README.hm12`` + ``Documentation/media/v4l-drivers/cx2341x.rst`` * .. _V4L2-PIX-FMT-CPIA1: - ``V4L2_PIX_FMT_CPIA1`` diff --git a/Documentation/media/v4l-drivers/max2175.rst b/Documentation/media/v4l-drivers/max2175.rst index 04478c25d57a..b1a4c89fd869 100644 --- a/Documentation/media/v4l-drivers/max2175.rst +++ b/Documentation/media/v4l-drivers/max2175.rst @@ -7,7 +7,7 @@ The MAX2175 driver implements the following driver-specific controls: ------------------------------- Enable/Disable I2S output of the tuner. This is a private control that can be accessed only using the subdev interface. - Refer to Documentation/media/kapi/v4l2-controls for more details. + Refer to Documentation/media/kapi/v4l2-controls.rst for more details. .. flat-table:: :header-rows: 0 -- cgit v1.2.3 From f495ae3c01dfa80e368a9330831023121b61006e Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Tue, 10 Oct 2017 12:36:45 -0500 Subject: Documentation: fix sound related doc refs Make sound doc refs valid. Signed-off-by: Tom Saeger Reviewed-by: Takashi Iwai Signed-off-by: Jonathan Corbet --- Documentation/sound/hd-audio/notes.rst | 2 +- Documentation/sound/kernel-api/writing-an-alsa-driver.rst | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/sound/hd-audio/notes.rst b/Documentation/sound/hd-audio/notes.rst index f59c3cdbfaf4..9f7347830ba4 100644 --- a/Documentation/sound/hd-audio/notes.rst +++ b/Documentation/sound/hd-audio/notes.rst @@ -192,7 +192,7 @@ preset model instead of PCI (and codec-) SSID look-up. What ``model`` option values are available depends on the codec chip. Check your codec chip from the codec proc file (see "Codec Proc-File" section below). It will show the vendor/product name of your codec -chip. Then, see Documentation/sound/HD-Audio-Models.rst file, +chip. Then, see Documentation/sound/hd-audio/models.rst file, the section of HD-audio driver. You can find a list of codecs and ``model`` options belonging to each codec. For example, for Realtek ALC262 codec chip, pass ``model=ultra`` for devices that are compatible diff --git a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst index 58ffa3f5bda7..a0b268466cb1 100644 --- a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst +++ b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst @@ -2498,7 +2498,7 @@ Mic boost Mic-boost switch is set as “Mic Boost” or “Mic Boost (6dB)”. More precise information can be found in -``Documentation/sound/alsa/ControlNames.txt``. +``Documentation/sound/designs/control-names.rst``. Access Flags ------------ -- cgit v1.2.3 From 4269a691108aaaa6b107bba5fbde7d59f991b73e Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Tue, 10 Oct 2017 12:36:52 -0500 Subject: Documentation: fix usb related doc refs Update ref to usb proc_usb_info.txt. Signed-off-by: Tom Saeger Signed-off-by: Jonathan Corbet --- Documentation/driver-api/usb/usb.rst | 4 +--- Documentation/networking/cdc_mbim.txt | 4 ++-- Documentation/usb/gadget-testing.txt | 2 +- 3 files changed, 4 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/driver-api/usb/usb.rst b/Documentation/driver-api/usb/usb.rst index dba0f876b36f..078e981e2b16 100644 --- a/Documentation/driver-api/usb/usb.rst +++ b/Documentation/driver-api/usb/usb.rst @@ -690,9 +690,7 @@ The USB devices are now exported via debugfs: This file is handy for status viewing tools in user mode, which can scan the text format and ignore most of it. More detailed device status (including class and vendor status) is available from device-specific -files. For information about the current format of this file, see the -``Documentation/usb/proc_usb_info.txt`` file in your Linux kernel -sources. +files. For information about the current format of this file, see below. This file, in combination with the poll() system call, can also be used to detect when devices are added or removed:: diff --git a/Documentation/networking/cdc_mbim.txt b/Documentation/networking/cdc_mbim.txt index e4c376abbdad..4e68f0bc5dba 100644 --- a/Documentation/networking/cdc_mbim.txt +++ b/Documentation/networking/cdc_mbim.txt @@ -332,8 +332,8 @@ References [5] "MBIM (Mobile Broadband Interface Model) Registry" - http://compliance.usb.org/mbim/ -[6] "/dev/bus/usb filesystem output" - - Documentation/usb/proc_usb_info.txt +[6] "/sys/kernel/debug/usb/devices output format" + - Documentation/driver-api/usb/usb.rst [7] "/sys/bus/usb/devices/.../descriptors" - Documentation/ABI/stable/sysfs-bus-usb diff --git a/Documentation/usb/gadget-testing.txt b/Documentation/usb/gadget-testing.txt index fbc397d17e98..441a4b9b666f 100644 --- a/Documentation/usb/gadget-testing.txt +++ b/Documentation/usb/gadget-testing.txt @@ -773,7 +773,7 @@ host: # cat /dev/usb/lp0 More advanced testing can be done with the prn_example -described in Documentation/usb/gadget-printer.txt. +described in Documentation/usb/gadget_printer.txt. 20. UAC1 function (virtual ALSA card, using u_audio API) -- cgit v1.2.3 From f2b41874240411a7d06aac2dc864a389c93183cc Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Tue, 10 Oct 2017 12:37:01 -0500 Subject: Documentation: fix networking related doc refs. Signed-off-by: Tom Saeger Signed-off-by: Jonathan Corbet --- Documentation/networking/checksum-offloads.txt | 2 +- Documentation/networking/packet_mmap.txt | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/checksum-offloads.txt b/Documentation/networking/checksum-offloads.txt index d52d191bbb0c..27bc09cfcf6d 100644 --- a/Documentation/networking/checksum-offloads.txt +++ b/Documentation/networking/checksum-offloads.txt @@ -47,7 +47,7 @@ The requirements for GSO are more complicated, because when segmenting an (section 'E') for more details. A driver declares its offload capabilities in netdev->hw_features; see - Documentation/networking/netdev-features for more. Note that a device + Documentation/networking/netdev-features.txt for more. Note that a device which only advertises NETIF_F_IP[V6]_CSUM must still obey the csum_start and csum_offset given in the SKB; if it tries to deduce these itself in hardware (as some NICs do) the driver should check that the values in the diff --git a/Documentation/networking/packet_mmap.txt b/Documentation/networking/packet_mmap.txt index f3b9e507ab05..bf654845556e 100644 --- a/Documentation/networking/packet_mmap.txt +++ b/Documentation/networking/packet_mmap.txt @@ -1055,7 +1055,7 @@ TX_RING part only TP_STATUS_AVAILABLE is set, then the tp_sec and tp_{n,u}sec members do not contain a valid value. For TX_RINGs, by default no timestamp is generated! -See include/linux/net_tstamp.h and Documentation/networking/timestamping +See include/linux/net_tstamp.h and Documentation/networking/timestamping.txt for more information on hardware timestamps. ------------------------------------------------------------------------------- -- cgit v1.2.3 From 1ad6e3b2652b310e4ab1a544894c79d4f7cb39d3 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Thu, 12 Oct 2017 15:00:06 +1100 Subject: documentation: Update ide-cd documentation to reflect CONFIG_BLK_DEV_HD_IDE removal CONFIG_BLK_DEV_HD_IDE was removed in commit 80aa31cb460d ("ide: remove CONFIG_BLK_DEV_HD_IDE config option (take 2)") but the ide-cd documentation was not updated and still asks users to disable it, which is misleading and involves a fruitless search. Signed-off-by: Finn Thain Signed-off-by: Jonathan Corbet --- Documentation/cdrom/ide-cd | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/cdrom/ide-cd b/Documentation/cdrom/ide-cd index f4dc9de2694e..a5f2a7f1ff46 100644 --- a/Documentation/cdrom/ide-cd +++ b/Documentation/cdrom/ide-cd @@ -55,13 +55,9 @@ This driver provides the following features: (to compile support as a module which can be loaded and unloaded) to the options: - Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support + ATA/ATAPI/MFM/RLL support Include IDE/ATAPI CDROM support - and `no' to - - Use old disk-only driver on primary interface - Depending on what type of IDE interface you have, you may need to specify additional configuration options. See Documentation/ide/ide.txt. -- cgit v1.2.3 From bc811c697b13dcb5abac9a410527859aca095a9c Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 28 Sep 2017 16:14:54 -0700 Subject: dt-bindings: Add documentation for Broadcom Hurricane 2 SoCs Add binding documentation for the Broadcom Hurricane 2 SoCs used in switching control planes. Acked-by: Jon Mason Signed-off-by: Florian Fainelli Acked-by: Rob Herring Signed-off-by: Florian Fainelli --- Documentation/devicetree/bindings/arm/bcm/brcm,hr2.txt | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,hr2.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,hr2.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,hr2.txt new file mode 100644 index 000000000000..a124c7fc4dcd --- /dev/null +++ b/Documentation/devicetree/bindings/arm/bcm/brcm,hr2.txt @@ -0,0 +1,14 @@ +Broadcom Hurricane 2 device tree bindings +--------------------------------------- + +Broadcom Hurricane 2 family of SoCs are used for switching control. These SoCs +are based on Broadcom's iProc SoC architecture and feature a single core Cortex +A9 ARM CPUs, DDR2/DDR3 memory, PCIe GEN-2, USB 2.0 and USB 3.0, serial and NAND +flash and a PCIe attached integrated switching engine. + +Boards with Hurricane SoCs shall have the following properties: + +Required root node property: + +BCM53342 +compatible = "brcm,bcm53342", "brcm,hr2"; -- cgit v1.2.3 From c6d2efd12744fc4c9c620eab9a92b0c4e9f5e4bd Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 28 Sep 2017 16:14:56 -0700 Subject: dt-bindings: Document Broadcom Hurricane 2 clocks Add a Device Tree binding document for the Broadcom Hurricane 2 SoC which is an iProc based system. Acked-by: Jon Mason Signed-off-by: Florian Fainelli Acked-by: Rob Herring Signed-off-by: Florian Fainelli --- .../devicetree/bindings/clock/brcm,iproc-clocks.txt | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt index f2c5f0e4a363..f8e4a93466cb 100644 --- a/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt +++ b/Documentation/devicetree/bindings/clock/brcm,iproc-clocks.txt @@ -137,6 +137,20 @@ These clock IDs are defined in: ch1_audio audiopll 2 BCM_CYGNUS_AUDIOPLL_CH1 ch2_audio audiopll 3 BCM_CYGNUS_AUDIOPLL_CH2 +Hurricane 2 +------ +PLL and leaf clock compatible strings for Hurricane 2 are: + "brcm,hr2-armpll" + +The following table defines the set of PLL/clock for Hurricane 2: + + Clock Source Index ID + --- ----- ----- --------- + crystal N/A N/A N/A + + armpll crystal N/A N/A + + Northstar and Northstar Plus ------ PLL and leaf clock compatible strings for Northstar and Northstar Plus are: -- cgit v1.2.3 From e6ac8fc0823f9227a6ce65481adcbdbf529acfb9 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 28 Sep 2017 16:15:00 -0700 Subject: dt-bindings: Add Ubiquiti Networks vendor prefix Use the stock ticker: UBNT as the vendor prefix for Ubiquiti Networks. Acked-by: Jon Mason Signed-off-by: Florian Fainelli Acked-by: Rob Herring Signed-off-by: Florian Fainelli --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 1ea1fd4232ab..91b6b5b36d4c 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -351,6 +351,7 @@ truly Truly Semiconductors Limited tsd Theobroma Systems Design und Consulting GmbH tyan Tyan Computer Corporation ucrobotics uCRobotics +ubnt Ubiquiti Networks udoo Udoo uniwest United Western Technologies Corp (UniWest) upisemi uPI Semiconductor Corp. -- cgit v1.2.3 From cfc95173ba8e18e41d9a69d2747d0f2738a2a551 Mon Sep 17 00:00:00 2001 From: Joel Stanley Date: Wed, 23 Aug 2017 15:39:56 +0930 Subject: dt-bindings: aspeed-scu: Add clock and reset properties Signed-off-by: Joel Stanley Acked-by: Rob Herring Signed-off-by: Lee Jones --- Documentation/devicetree/bindings/mfd/aspeed-scu.txt | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mfd/aspeed-scu.txt b/Documentation/devicetree/bindings/mfd/aspeed-scu.txt index 4fc5b83726d6..ce8cf0ec6279 100644 --- a/Documentation/devicetree/bindings/mfd/aspeed-scu.txt +++ b/Documentation/devicetree/bindings/mfd/aspeed-scu.txt @@ -9,10 +9,16 @@ Required properties: "aspeed,g5-scu", "syscon", "simple-mfd" - reg: contains the offset and length of the SCU memory region +- #clock-cells: should be set to <1> - the system controller is also a + clock provider +- #reset-cells: should be set to <1> - the system controller is also a + reset line provider Example: syscon: syscon@1e6e2000 { compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd"; reg = <0x1e6e2000 0x1a8>; + #clock-cells = <1>; + #reset-cells = <1>; }; -- cgit v1.2.3 From 4589515af30005a404bd34e4b7933f98e68849f4 Mon Sep 17 00:00:00 2001 From: Maciej Purski Date: Tue, 5 Sep 2017 15:50:27 +0200 Subject: mfd: max77693: Add muic of_compatible in mfd_cell This patch adds muic of_compatible in order to use the muic device driver in device tree. Signed-off-by: Maciej Purski Reviewed-by: Chanwoo Choi Reviewed-by: Krzysztof Kozlowski Acked-by: Rob Herring Signed-off-by: Lee Jones --- Documentation/devicetree/bindings/mfd/max77693.txt | 6 ++++++ drivers/mfd/max77693.c | 5 ++++- 2 files changed, 10 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mfd/max77693.txt b/Documentation/devicetree/bindings/mfd/max77693.txt index 6a1ae3a2b77f..e6754974a745 100644 --- a/Documentation/devicetree/bindings/mfd/max77693.txt +++ b/Documentation/devicetree/bindings/mfd/max77693.txt @@ -127,6 +127,12 @@ Required properties for the LED child node: Optional properties for the LED child node: - label : see Documentation/devicetree/bindings/leds/common.txt +Optional nodes: +- max77693-muic : + Node used only by extcon consumers. + Required properties: + - compatible : "maxim,max77693-muic" + Example: #include diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c index 662ae0d9e334..1c05ea0cba61 100644 --- a/drivers/mfd/max77693.c +++ b/drivers/mfd/max77693.c @@ -48,7 +48,10 @@ static const struct mfd_cell max77693_devs[] = { .name = "max77693-charger", .of_compatible = "maxim,max77693-charger", }, - { .name = "max77693-muic", }, + { + .name = "max77693-muic", + .of_compatible = "maxim,max77693-muic", + }, { .name = "max77693-haptic", .of_compatible = "maxim,max77693-haptic", -- cgit v1.2.3 From 58ab243ef5ad1aee7600eb4bd8d9ce5a63401c5e Mon Sep 17 00:00:00 2001 From: Ray Jui Date: Wed, 6 Sep 2017 17:27:41 -0700 Subject: syscon: dt-bindings: Add binding doc for Broadcom iProc CDRU Add binding document for Broadcom iProc's Chip Device Resource Unit (CDRU). Multiple iProc based chips have this CDRU block that contains miscellaneous registers for chip or device configurations. Start with Stingray specific compatible string for the initial binding Signed-off-by: Ray Jui Reviewed-by: Scott Branden Signed-off-by: Lee Jones --- .../devicetree/bindings/mfd/brcm,iproc-cdru.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/brcm,iproc-cdru.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mfd/brcm,iproc-cdru.txt b/Documentation/devicetree/bindings/mfd/brcm,iproc-cdru.txt new file mode 100644 index 000000000000..82f82e069563 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/brcm,iproc-cdru.txt @@ -0,0 +1,16 @@ +Broadcom iProc Chip Device Resource Unit (CDRU) + +Various Broadcom iProc SoCs have a set of registers that provide various +chip specific device and resource configurations. This node allows access to +these CDRU registers via syscon. + +Required properties: +- compatible: should contain: + "brcm,sr-cdru", "syscon" for Stingray +- reg: base address and range of the CDRU registers + +Example: + cdru: syscon@6641d000 { + compatible = "brcm,sr-cdru", "syscon"; + reg = <0 0x6641d000 0 0x400>; + }; -- cgit v1.2.3 From 88decb026d90c386b2a15adbe6fb094f6a86d144 Mon Sep 17 00:00:00 2001 From: Ray Jui Date: Wed, 6 Sep 2017 17:27:42 -0700 Subject: syscon: dt-bindings: Add binding document for iProc MHB block Add binding document for Broadcom iProc's Multi-Host Bridge (MHB) block Signed-off-by: Ray Jui Reviewed-by: Scott Branden Signed-off-by: Lee Jones --- .../devicetree/bindings/mfd/brcm,iproc-mhb.txt | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/brcm,iproc-mhb.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mfd/brcm,iproc-mhb.txt b/Documentation/devicetree/bindings/mfd/brcm,iproc-mhb.txt new file mode 100644 index 000000000000..4421e9771b8a --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/brcm,iproc-mhb.txt @@ -0,0 +1,18 @@ +Broadcom iProc Multi Host Bridge (MHB) + +Certain Broadcom iProc SoCs have a multi host bridge (MHB) block that controls +the connection and configuration of 1) internal PCIe serdes; 2) PCIe endpoint +interface; 3) access to the Nitro (network processing) engine + +This node allows access to these MHB registers via syscon. + +Required properties: +- compatible: should contain: + "brcm,sr-mhb", "syscon" for Stingray +- reg: base address and range of the MHB registers + +Example: + mhb: syscon@60401000 { + compatible = "brcm,sr-mhb", "syscon"; + reg = <0 0x60401000 0 0x38c>; + }; -- cgit v1.2.3 From d67ac3ae3a3ce464b4fec854c4c85407a99e8e2c Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 4 Oct 2017 14:33:08 +0200 Subject: dt-bindings: iommu: ipmmu-vmsa: Use generic node name Use the preferred generic node name in the example. Signed-off-by: Geert Uytterhoeven Reviewed-by: Simon Horman Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt b/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt index 3ed027cfca95..857df929a654 100644 --- a/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt +++ b/Documentation/devicetree/bindings/iommu/renesas,ipmmu-vmsa.txt @@ -53,7 +53,7 @@ Example: R8A7791 IPMMU-MX and VSP1-D0 bus master #iommu-cells = <1>; }; - vsp1@fe928000 { + vsp@fe928000 { ... iommus = <&ipmmu_mx 13>; ... -- cgit v1.2.3 From 23c4490d2b7f78a855f9c5675e26735fb61afe84 Mon Sep 17 00:00:00 2001 From: weiping zhang Date: Sat, 14 Oct 2017 00:26:28 +0800 Subject: null_blk: update usage hints for submit_queues update the range of submits_queues, and correct usage hints. Signed-off-by: weiping zhang Signed-off-by: Jens Axboe --- Documentation/block/null_blk.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/block/null_blk.txt b/Documentation/block/null_blk.txt index 3140dbd860d8..1f8d92c70458 100644 --- a/Documentation/block/null_blk.txt +++ b/Documentation/block/null_blk.txt @@ -55,10 +55,10 @@ irqmode=[0-2]: Default: 1-Soft-irq completion_nsec=[ns]: Default: 10.000ns Combined with irqmode=2 (timer). The time each completion event must wait. -submit_queues=[0..nr_cpus]: +submit_queues=[1..nr_cpus]: The number of submission queues attached to the device driver. If unset, it - defaults to 1 on single-queue and bio-based instances. For multi-queue, - it is ignored when use_per_node_hctx module parameter is 1. + defaults to 1. For multi-queue, it is ignored when use_per_node_hctx module + parameter is 1. hw_queue_depth=[0..qdepth]: Default: 64 The hardware queue depth of the device. -- cgit v1.2.3 From fc186311f2233bb3f69f22b96babdf16a57c88a9 Mon Sep 17 00:00:00 2001 From: weiping zhang Date: Sat, 14 Oct 2017 00:26:54 +0800 Subject: null_blk: add usage hints for no_sched This parameter provide an option to disable io scheduler when nullb* in multi-queue mode. Signed-off-by: weiping zhang Signed-off-by: Jens Axboe --- Documentation/block/null_blk.txt | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation') diff --git a/Documentation/block/null_blk.txt b/Documentation/block/null_blk.txt index 1f8d92c70458..b7161c8e70f2 100644 --- a/Documentation/block/null_blk.txt +++ b/Documentation/block/null_blk.txt @@ -73,3 +73,7 @@ use_per_node_hctx=[0/1]: Default: 0 use_lightnvm=[0/1]: Default: 0 Register device with LightNVM. Requires blk-mq and CONFIG_NVM to be enabled. + +no_sched=[0/1]: Default: 0 + 0: nullb* use default blk-mq io scheduler. + 1: nullb* doesn't use io scheduler. -- cgit v1.2.3 From de18e4bea0784e8df67c908c6157acc05ecba0cf Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 9 Oct 2017 20:18:33 +0200 Subject: devicetree: Add vendor-prefix for DH electronics GmbH Add vendor prefix for DH electronics GmbH, https://www.dh-electronics.com . The company is a SoM and evaluation board manufacturer. Signed-off-by: Marek Vasut Cc: Rob Herring Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 5268738c3e7c..15c6b33f0b21 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -83,6 +83,7 @@ davicom DAVICOM Semiconductor, Inc. delta Delta Electronics, Inc. denx Denx Software Engineering devantech Devantech, Ltd. +dh DH electronics GmbH digi Digi International Inc. digilent Diglent, Inc. dioo Dioo Microcircuit Co., Ltd -- cgit v1.2.3 From 20f97caf1120bd02e8ff4adbad3b44b63626feb5 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 13 Oct 2017 15:27:24 +0200 Subject: PM / QoS: Drop PM_QOS_FLAG_REMOTE_WAKEUP The PM QoS flag PM_QOS_FLAG_REMOTE_WAKEUP is not used consistently and the vast majority of code simply assumes that remote wakeup should be enabled for devices in runtime suspend if they can generate wakeup signals, so drop it. Signed-off-by: Rafael J. Wysocki Acked-by: Ulf Hansson Reviewed-by: Mika Westerberg --- Documentation/ABI/testing/sysfs-devices-power | 16 --------------- Documentation/power/pm_qos_interface.txt | 13 ++++++------- drivers/acpi/device_pm.c | 6 ++---- drivers/base/power/domain.c | 4 +--- drivers/base/power/sysfs.c | 28 --------------------------- include/linux/pm_qos.h | 1 - 6 files changed, 9 insertions(+), 59 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power index 676fdf5f2a99..f4b24c327665 100644 --- a/Documentation/ABI/testing/sysfs-devices-power +++ b/Documentation/ABI/testing/sysfs-devices-power @@ -258,19 +258,3 @@ Description: This attribute has no effect on system-wide suspend/resume and hibernation. - -What: /sys/devices/.../power/pm_qos_remote_wakeup -Date: September 2012 -Contact: Rafael J. Wysocki -Description: - The /sys/devices/.../power/pm_qos_remote_wakeup attribute - is used for manipulating the PM QoS "remote wakeup required" - flag. If set, this flag indicates to the kernel that the - device is a source of user events that have to be signaled from - its low-power states. - - Not all drivers support this attribute. If it isn't supported, - it is not present. - - This attribute has no effect on system-wide suspend/resume and - hibernation. diff --git a/Documentation/power/pm_qos_interface.txt b/Documentation/power/pm_qos_interface.txt index 21d2d48f87a2..19c5f7b1a7ba 100644 --- a/Documentation/power/pm_qos_interface.txt +++ b/Documentation/power/pm_qos_interface.txt @@ -98,8 +98,7 @@ Values are updated in response to changes of the request list. The target values of resume latency and active state latency tolerance are simply the minimum of the request values held in the parameter list elements. The PM QoS flags aggregate value is a gather (bitwise OR) of all list elements' -values. Two device PM QoS flags are defined currently: PM_QOS_FLAG_NO_POWER_OFF -and PM_QOS_FLAG_REMOTE_WAKEUP. +values. One device PM QoS flag is defined currently: PM_QOS_FLAG_NO_POWER_OFF. Note: The aggregated target values are implemented in such a way that reading the aggregated value does not require any locking mechanism. @@ -153,14 +152,14 @@ PM QoS list of resume latency constraints and remove sysfs attribute pm_qos_resume_latency_us from the device's power directory. int dev_pm_qos_expose_flags(device, value) -Add a request to the device's PM QoS list of flags and create sysfs attributes -pm_qos_no_power_off and pm_qos_remote_wakeup under the device's power directory -allowing user space to change these flags' value. +Add a request to the device's PM QoS list of flags and create sysfs attribute +pm_qos_no_power_off under the device's power directory allowing user space to +change the value of the PM_QOS_FLAG_NO_POWER_OFF flag. void dev_pm_qos_hide_flags(device) Drop the request added by dev_pm_qos_expose_flags() from the device's PM QoS list -of flags and remove sysfs attributes pm_qos_no_power_off and pm_qos_remote_wakeup -under the device's power directory. +of flags and remove sysfs attribute pm_qos_no_power_off from the device's power +directory. Notification mechanisms: The per-device PM QoS framework has a per-device notification tree. diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index fbcc73f7a099..e8c820129797 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -581,8 +581,7 @@ static int acpi_dev_pm_get_state(struct device *dev, struct acpi_device *adev, d_min = ret; wakeup = device_may_wakeup(dev) && adev->wakeup.flags.valid && adev->wakeup.sleep_state >= target_state; - } else if (dev_pm_qos_flags(dev, PM_QOS_FLAG_REMOTE_WAKEUP) != - PM_QOS_FLAGS_NONE) { + } else { wakeup = adev->wakeup.flags.valid; } @@ -865,8 +864,7 @@ int acpi_dev_runtime_suspend(struct device *dev) if (!adev) return 0; - remote_wakeup = dev_pm_qos_flags(dev, PM_QOS_FLAG_REMOTE_WAKEUP) > - PM_QOS_FLAGS_NONE; + remote_wakeup = acpi_device_can_wakeup(adev); if (remote_wakeup) { error = acpi_device_wakeup_enable(adev, ACPI_STATE_S0); if (error) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index e8ca5e2cf1e5..e6414e9998bb 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -346,9 +346,7 @@ static int genpd_power_off(struct generic_pm_domain *genpd, bool one_dev_on, list_for_each_entry(pdd, &genpd->dev_list, list_node) { enum pm_qos_flags_status stat; - stat = dev_pm_qos_flags(pdd->dev, - PM_QOS_FLAG_NO_POWER_OFF - | PM_QOS_FLAG_REMOTE_WAKEUP); + stat = dev_pm_qos_flags(pdd->dev, PM_QOS_FLAG_NO_POWER_OFF); if (stat > PM_QOS_FLAGS_NONE) return -EBUSY; diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c index 156ab57bca77..29bf28fef136 100644 --- a/drivers/base/power/sysfs.c +++ b/drivers/base/power/sysfs.c @@ -309,33 +309,6 @@ static ssize_t pm_qos_no_power_off_store(struct device *dev, static DEVICE_ATTR(pm_qos_no_power_off, 0644, pm_qos_no_power_off_show, pm_qos_no_power_off_store); -static ssize_t pm_qos_remote_wakeup_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - return sprintf(buf, "%d\n", !!(dev_pm_qos_requested_flags(dev) - & PM_QOS_FLAG_REMOTE_WAKEUP)); -} - -static ssize_t pm_qos_remote_wakeup_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t n) -{ - int ret; - - if (kstrtoint(buf, 0, &ret)) - return -EINVAL; - - if (ret != 0 && ret != 1) - return -EINVAL; - - ret = dev_pm_qos_update_flags(dev, PM_QOS_FLAG_REMOTE_WAKEUP, ret); - return ret < 0 ? ret : n; -} - -static DEVICE_ATTR(pm_qos_remote_wakeup, 0644, - pm_qos_remote_wakeup_show, pm_qos_remote_wakeup_store); - #ifdef CONFIG_PM_SLEEP static const char _enabled[] = "enabled"; static const char _disabled[] = "disabled"; @@ -671,7 +644,6 @@ static const struct attribute_group pm_qos_latency_tolerance_attr_group = { static struct attribute *pm_qos_flags_attrs[] = { &dev_attr_pm_qos_no_power_off.attr, - &dev_attr_pm_qos_remote_wakeup.attr, NULL, }; static const struct attribute_group pm_qos_flags_attr_group = { diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h index 032b55909145..51f0d7e0b15f 100644 --- a/include/linux/pm_qos.h +++ b/include/linux/pm_qos.h @@ -39,7 +39,6 @@ enum pm_qos_flags_status { #define PM_QOS_LATENCY_ANY ((s32)(~(__u32)0 >> 1)) #define PM_QOS_FLAG_NO_POWER_OFF (1 << 0) -#define PM_QOS_FLAG_REMOTE_WAKEUP (1 << 1) struct pm_qos_request { struct plist_node node; -- cgit v1.2.3 From 11af847446ed0d131cf24d16a7ef3d5ea7a49554 Mon Sep 17 00:00:00 2001 From: Josh Poimboeuf Date: Fri, 13 Oct 2017 15:02:00 -0500 Subject: x86/unwind: Rename unwinder config options to 'CONFIG_UNWINDER_*' Rename the unwinder config options from: CONFIG_ORC_UNWINDER CONFIG_FRAME_POINTER_UNWINDER CONFIG_GUESS_UNWINDER to: CONFIG_UNWINDER_ORC CONFIG_UNWINDER_FRAME_POINTER CONFIG_UNWINDER_GUESS ... in order to give them a more logical config namespace. Suggested-by: Ingo Molnar Signed-off-by: Josh Poimboeuf Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/73972fc7e2762e91912c6b9584582703d6f1b8cc.1507924831.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar --- Documentation/x86/orc-unwinder.txt | 2 +- Makefile | 4 ++-- arch/x86/Kconfig | 2 +- arch/x86/Kconfig.debug | 10 +++++----- arch/x86/configs/tiny.config | 4 ++-- arch/x86/configs/x86_64_defconfig | 2 +- arch/x86/include/asm/module.h | 2 +- arch/x86/include/asm/unwind.h | 8 ++++---- arch/x86/kernel/Makefile | 6 +++--- include/asm-generic/vmlinux.lds.h | 2 +- lib/Kconfig.debug | 2 +- scripts/Makefile.build | 2 +- 12 files changed, 23 insertions(+), 23 deletions(-) (limited to 'Documentation') diff --git a/Documentation/x86/orc-unwinder.txt b/Documentation/x86/orc-unwinder.txt index af0c9a4c65a6..cd4b29be29af 100644 --- a/Documentation/x86/orc-unwinder.txt +++ b/Documentation/x86/orc-unwinder.txt @@ -4,7 +4,7 @@ ORC unwinder Overview -------- -The kernel CONFIG_ORC_UNWINDER option enables the ORC unwinder, which is +The kernel CONFIG_UNWINDER_ORC option enables the ORC unwinder, which is similar in concept to a DWARF unwinder. The difference is that the format of the ORC data is much simpler than DWARF, which in turn allows the ORC unwinder to be much simpler and faster. diff --git a/Makefile b/Makefile index bc5c79e8e3cf..c0f723f81c06 100644 --- a/Makefile +++ b/Makefile @@ -933,8 +933,8 @@ ifdef CONFIG_STACK_VALIDATION ifeq ($(has_libelf),1) objtool_target := tools/objtool FORCE else - ifdef CONFIG_ORC_UNWINDER - $(error "Cannot generate ORC metadata for CONFIG_ORC_UNWINDER=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel") + ifdef CONFIG_UNWINDER_ORC + $(error "Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel") else $(warning "Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel") endif diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 971feac13506..6b94ca0aa585 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -170,7 +170,7 @@ config X86 select HAVE_PERF_USER_STACK_DUMP select HAVE_RCU_TABLE_FREE select HAVE_REGS_AND_STACK_ACCESS_API - select HAVE_RELIABLE_STACKTRACE if X86_64 && FRAME_POINTER_UNWINDER && STACK_VALIDATION + select HAVE_RELIABLE_STACKTRACE if X86_64 && UNWINDER_FRAME_POINTER && STACK_VALIDATION select HAVE_STACK_VALIDATION if X86_64 select HAVE_SYSCALL_TRACEPOINTS select HAVE_UNSTABLE_SCHED_CLOCK diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index 71a48a30fc84..f274dbb87c26 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -358,13 +358,13 @@ config PUNIT_ATOM_DEBUG choice prompt "Choose kernel unwinder" - default FRAME_POINTER_UNWINDER + default UNWINDER_FRAME_POINTER ---help--- This determines which method will be used for unwinding kernel stack traces for panics, oopses, bugs, warnings, perf, /proc//stack, livepatch, lockdep, and more. -config FRAME_POINTER_UNWINDER +config UNWINDER_FRAME_POINTER bool "Frame pointer unwinder" select FRAME_POINTER ---help--- @@ -379,7 +379,7 @@ config FRAME_POINTER_UNWINDER consistency model, as this is currently the only way to get a reliable stack trace (CONFIG_HAVE_RELIABLE_STACKTRACE). -config ORC_UNWINDER +config UNWINDER_ORC bool "ORC unwinder" depends on X86_64 select STACK_VALIDATION @@ -395,7 +395,7 @@ config ORC_UNWINDER Enabling this option will increase the kernel's runtime memory usage by roughly 2-4MB, depending on your kernel config. -config GUESS_UNWINDER +config UNWINDER_GUESS bool "Guess unwinder" depends on EXPERT ---help--- @@ -410,7 +410,7 @@ config GUESS_UNWINDER endchoice config FRAME_POINTER - depends on !ORC_UNWINDER && !GUESS_UNWINDER + depends on !UNWINDER_ORC && !UNWINDER_GUESS bool endmenu diff --git a/arch/x86/configs/tiny.config b/arch/x86/configs/tiny.config index 550cd5012b73..66c9e2aab16c 100644 --- a/arch/x86/configs/tiny.config +++ b/arch/x86/configs/tiny.config @@ -1,5 +1,5 @@ CONFIG_NOHIGHMEM=y # CONFIG_HIGHMEM4G is not set # CONFIG_HIGHMEM64G is not set -CONFIG_GUESS_UNWINDER=y -# CONFIG_FRAME_POINTER_UNWINDER is not set +CONFIG_UNWINDER_GUESS=y +# CONFIG_UNWINDER_FRAME_POINTER is not set diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig index eb65c248708d..e32fc1f274d8 100644 --- a/arch/x86/configs/x86_64_defconfig +++ b/arch/x86/configs/x86_64_defconfig @@ -299,7 +299,7 @@ CONFIG_DEBUG_STACKOVERFLOW=y # CONFIG_DEBUG_RODATA_TEST is not set CONFIG_DEBUG_BOOT_PARAMS=y CONFIG_OPTIMIZE_INLINING=y -CONFIG_ORC_UNWINDER=y +CONFIG_UNWINDER_ORC=y CONFIG_SECURITY=y CONFIG_SECURITY_NETWORK=y CONFIG_SECURITY_SELINUX=y diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h index 9eb7c718aaf8..9f05a1002aa9 100644 --- a/arch/x86/include/asm/module.h +++ b/arch/x86/include/asm/module.h @@ -5,7 +5,7 @@ #include struct mod_arch_specific { -#ifdef CONFIG_ORC_UNWINDER +#ifdef CONFIG_UNWINDER_ORC unsigned int num_orcs; int *orc_unwind_ip; struct orc_entry *orc_unwind; diff --git a/arch/x86/include/asm/unwind.h b/arch/x86/include/asm/unwind.h index e9f793e2df7a..35d67dc7b69f 100644 --- a/arch/x86/include/asm/unwind.h +++ b/arch/x86/include/asm/unwind.h @@ -12,11 +12,11 @@ struct unwind_state { struct task_struct *task; int graph_idx; bool error; -#if defined(CONFIG_ORC_UNWINDER) +#if defined(CONFIG_UNWINDER_ORC) bool signal, full_regs; unsigned long sp, bp, ip; struct pt_regs *regs; -#elif defined(CONFIG_FRAME_POINTER_UNWINDER) +#elif defined(CONFIG_UNWINDER_FRAME_POINTER) bool got_irq; unsigned long *bp, *orig_sp, ip; struct pt_regs *regs; @@ -50,7 +50,7 @@ void unwind_start(struct unwind_state *state, struct task_struct *task, __unwind_start(state, task, regs, first_frame); } -#if defined(CONFIG_ORC_UNWINDER) || defined(CONFIG_FRAME_POINTER_UNWINDER) +#if defined(CONFIG_UNWINDER_ORC) || defined(CONFIG_UNWINDER_FRAME_POINTER) static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state) { if (unwind_done(state)) @@ -65,7 +65,7 @@ static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state) } #endif -#ifdef CONFIG_ORC_UNWINDER +#ifdef CONFIG_UNWINDER_ORC void unwind_init(void); void unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size, void *orc, size_t orc_size); diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index fd0a7895b63f..6209ab6deb50 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -127,9 +127,9 @@ obj-$(CONFIG_PERF_EVENTS) += perf_regs.o obj-$(CONFIG_TRACING) += tracepoint.o obj-$(CONFIG_SCHED_MC_PRIO) += itmt.o -obj-$(CONFIG_ORC_UNWINDER) += unwind_orc.o -obj-$(CONFIG_FRAME_POINTER_UNWINDER) += unwind_frame.o -obj-$(CONFIG_GUESS_UNWINDER) += unwind_guess.o +obj-$(CONFIG_UNWINDER_ORC) += unwind_orc.o +obj-$(CONFIG_UNWINDER_FRAME_POINTER) += unwind_frame.o +obj-$(CONFIG_UNWINDER_GUESS) += unwind_guess.o ### # 64 bit specific files diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 8acfc1e099e1..63e56f6c1877 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -687,7 +687,7 @@ #define BUG_TABLE #endif -#ifdef CONFIG_ORC_UNWINDER +#ifdef CONFIG_UNWINDER_ORC #define ORC_UNWIND_TABLE \ . = ALIGN(4); \ .orc_unwind_ip : AT(ADDR(.orc_unwind_ip) - LOAD_OFFSET) { \ diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 2689b7c50c52..7566eff22236 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -376,7 +376,7 @@ config STACK_VALIDATION that runtime stack traces are more reliable. This is also a prerequisite for generation of ORC unwind data, which - is needed for CONFIG_ORC_UNWINDER. + is needed for CONFIG_UNWINDER_ORC. For more information, see tools/objtool/Documentation/stack-validation.txt. diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 061d0c3a420a..f965f477832e 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -258,7 +258,7 @@ ifneq ($(SKIP_STACK_VALIDATION),1) __objtool_obj := $(objtree)/tools/objtool/objtool -objtool_args = $(if $(CONFIG_ORC_UNWINDER),orc generate,check) +objtool_args = $(if $(CONFIG_UNWINDER_ORC),orc generate,check) ifndef CONFIG_FRAME_POINTER objtool_args += --no-fp -- cgit v1.2.3 From d35d43d783bf770638098a8dd939e8fd270cafc9 Mon Sep 17 00:00:00 2001 From: Peter Meerwald-Stadler Date: Tue, 10 Oct 2017 15:48:46 +0200 Subject: Documentation: iio: Clarify meaning of IIO_DISTANCE channel type IIO_DISTANCE is used for two purposes: for pedometers to record the distance covered by a walker, and to measure the distance to an object IIO_DISTANCE is in meters while IIO_PROXIMITY is a unitless measure indirectly proportional to distance (higher value relates to a closer object) Signed-off-by: Peter Meerwald-Stadler Signed-off-by: Jonathan Cameron --- Documentation/ABI/testing/sysfs-bus-iio | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 7eead5f97e02..3fc79185cc56 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -1242,9 +1242,9 @@ What: /sys/.../iio:deviceX/in_distance_raw KernelVersion: 4.0 Contact: linux-iio@vger.kernel.org Description: - This attribute is used to read the distance covered by the user - since the last reboot while activated. Units after application - of scale are meters. + This attribute is used to read the measured distance to an object + or the distance covered by the user since the last reboot while + activated. Units after application of scale are meters. What: /sys/bus/iio/devices/iio:deviceX/store_eeprom KernelVersion: 3.4.0 -- cgit v1.2.3 From 6d39a6cc38899d3f77b5f8bb03afcdc407e11933 Mon Sep 17 00:00:00 2001 From: Peter Meerwald-Stadler Date: Wed, 11 Oct 2017 11:09:07 +0200 Subject: dt-bindings: iio: health: Fix max30100 I2C chip address in example Should be in hex, not decimal or even octal Signed-off-by: Peter Meerwald-Stadler Acked-by: Rob Herring Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/health/max30100.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/health/max30100.txt b/Documentation/devicetree/bindings/iio/health/max30100.txt index 295a9edfa4fd..8d8176459d09 100644 --- a/Documentation/devicetree/bindings/iio/health/max30100.txt +++ b/Documentation/devicetree/bindings/iio/health/max30100.txt @@ -20,9 +20,9 @@ Optional properties: Example: -max30100@057 { +max30100@57 { compatible = "maxim,max30100"; - reg = <57>; + reg = <0x57>; maxim,led-current-microamp = <24000 50000>; interrupt-parent = <&gpio1>; interrupts = <16 2>; -- cgit v1.2.3 From 446b3217a96c456ab8796605fbb3ce379b03a504 Mon Sep 17 00:00:00 2001 From: Peter Meerwald-Stadler Date: Wed, 11 Oct 2017 11:09:08 +0200 Subject: dt-bindings: iio: health: Use binding name for max30102 in example Signed-off-by: Peter Meerwald-Stadler Acked-by: Rob Herring Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/health/max30102.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/health/max30102.txt b/Documentation/devicetree/bindings/iio/health/max30102.txt index c695e7cbeefb..8629c18b0e78 100644 --- a/Documentation/devicetree/bindings/iio/health/max30102.txt +++ b/Documentation/devicetree/bindings/iio/health/max30102.txt @@ -20,7 +20,7 @@ Optional properties: Example: -max30100@57 { +max30102@57 { compatible = "maxim,max30102"; reg = <0x57>; maxim,red-led-current-microamp = <7000>; -- cgit v1.2.3 From 11b86c7004ef14f9f8c1e2caf66bfaad6f3167a2 Mon Sep 17 00:00:00 2001 From: Gwendal Grignou Date: Thu, 12 Oct 2017 19:33:23 +0200 Subject: platform/chrome: Add cros_ec_accel_legacy driver Add driver to support older EC firmware that only support deprecated ec command. Rely on ACPI memory map register to access sensor information. Present same interface as the regular cros_ec sensor stack: - one iio device per accelerometer - use HTML5 axis definition - use iio abi units - accept calibration calls, but do nothing Chrome can use the same code than regular cros_ec sensor stack to calculate orientation and lid angle. Signed-off-by: Gwendal Grignou Signed-off-by: Thierry Escande Signed-off-by: Jonathan Cameron --- Documentation/ABI/testing/sysfs-bus-iio-cros-ec | 10 + drivers/iio/accel/Kconfig | 11 + drivers/iio/accel/Makefile | 2 + drivers/iio/accel/cros_ec_accel_legacy.c | 423 ++++++++++++++++++++++++ 4 files changed, 446 insertions(+) create mode 100644 drivers/iio/accel/cros_ec_accel_legacy.c (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-bus-iio-cros-ec b/Documentation/ABI/testing/sysfs-bus-iio-cros-ec index 297b9720f024..0e95c2ca105c 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio-cros-ec +++ b/Documentation/ABI/testing/sysfs-bus-iio-cros-ec @@ -16,3 +16,13 @@ Description: the motion sensor is placed. For example, in a laptop a motion sensor can be located on the base or on the lid. Current valid values are 'base' and 'lid'. + +What: /sys/bus/iio/devices/iio:deviceX/id +Date: Septembre 2017 +KernelVersion: 4.14 +Contact: linux-iio@vger.kernel.org +Description: + This attribute is exposed by the CrOS EC legacy accelerometer + driver and represents the sensor ID as exposed by the EC. This + ID is used by the Android sensor service hardware abstraction + layer (sensor HAL) through the Android container on ChromeOS. diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig index 0be352a7b6f4..c6d9517d7611 100644 --- a/drivers/iio/accel/Kconfig +++ b/drivers/iio/accel/Kconfig @@ -148,6 +148,17 @@ config HID_SENSOR_ACCEL_3D To compile this driver as a module, choose M here: the module will be called hid-sensor-accel-3d. +config IIO_CROS_EC_ACCEL_LEGACY + tristate "ChromeOS EC Legacy Accelerometer Sensor" + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER + select CROS_EC_LPC_REGISTER_DEVICE + help + Say yes here to get support for accelerometers on Chromebook using + legacy EC firmware. + Sensor data is retrieved through IO memory. + Newer devices should use IIO_CROS_EC_SENSORS. + config IIO_ST_ACCEL_3AXIS tristate "STMicroelectronics accelerometers 3-Axis Driver" depends on (I2C || SPI_MASTER) && SYSFS diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile index 31fba1974e95..fdd054af636c 100644 --- a/drivers/iio/accel/Makefile +++ b/drivers/iio/accel/Makefile @@ -43,6 +43,8 @@ obj-$(CONFIG_SCA3000) += sca3000.o obj-$(CONFIG_STK8312) += stk8312.o obj-$(CONFIG_STK8BA50) += stk8ba50.o +obj-$(CONFIG_IIO_CROS_EC_ACCEL_LEGACY) += cros_ec_accel_legacy.o + obj-$(CONFIG_IIO_SSP_SENSORS_COMMONS) += ssp_accel_sensor.o obj-$(CONFIG_IIO_ST_ACCEL_3AXIS) += st_accel.o diff --git a/drivers/iio/accel/cros_ec_accel_legacy.c b/drivers/iio/accel/cros_ec_accel_legacy.c new file mode 100644 index 000000000000..063e89eff791 --- /dev/null +++ b/drivers/iio/accel/cros_ec_accel_legacy.c @@ -0,0 +1,423 @@ +/* + * Driver for older Chrome OS EC accelerometer + * + * Copyright 2017 Google, Inc + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * This driver uses the memory mapper cros-ec interface to communicate + * with the Chrome OS EC about accelerometer data. + * Accelerometer access is presented through iio sysfs. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DRV_NAME "cros-ec-accel-legacy" + +/* + * Sensor scale hard coded at 10 bits per g, computed as: + * g / (2^10 - 1) = 0.009586168; with g = 9.80665 m.s^-2 + */ +#define ACCEL_LEGACY_NSCALE 9586168 + +/* Indices for EC sensor values. */ +enum { + X, + Y, + Z, + MAX_AXIS, +}; + +/* State data for cros_ec_accel_legacy iio driver. */ +struct cros_ec_accel_legacy_state { + struct cros_ec_device *ec; + + /* + * Array holding data from a single capture. 2 bytes per channel + * for the 3 channels plus the timestamp which is always last and + * 8-bytes aligned. + */ + s16 capture_data[8]; + s8 sign[MAX_AXIS]; + u8 sensor_num; +}; + +static int ec_cmd_read_u8(struct cros_ec_device *ec, unsigned int offset, + u8 *dest) +{ + return ec->cmd_readmem(ec, offset, 1, dest); +} + +static int ec_cmd_read_u16(struct cros_ec_device *ec, unsigned int offset, + u16 *dest) +{ + __le16 tmp; + int ret = ec->cmd_readmem(ec, offset, 2, &tmp); + + *dest = le16_to_cpu(tmp); + + return ret; +} + +/** + * read_ec_until_not_busy() - Read from EC status byte until it reads not busy. + * @st: Pointer to state information for device. + * + * This function reads EC status until its busy bit gets cleared. It does not + * wait indefinitely and returns -EIO if the EC status is still busy after a + * few hundreds milliseconds. + * + * Return: 8-bit status if ok, -EIO on error + */ +static int read_ec_until_not_busy(struct cros_ec_accel_legacy_state *st) +{ + struct cros_ec_device *ec = st->ec; + u8 status; + int attempts = 0; + + ec_cmd_read_u8(ec, EC_MEMMAP_ACC_STATUS, &status); + while (status & EC_MEMMAP_ACC_STATUS_BUSY_BIT) { + /* Give up after enough attempts, return error. */ + if (attempts++ >= 50) + return -EIO; + + /* Small delay every so often. */ + if (attempts % 5 == 0) + msleep(25); + + ec_cmd_read_u8(ec, EC_MEMMAP_ACC_STATUS, &status); + } + + return status; +} + +/** + * read_ec_accel_data_unsafe() - Read acceleration data from EC shared memory. + * @st: Pointer to state information for device. + * @scan_mask: Bitmap of the sensor indices to scan. + * @data: Location to store data. + * + * This is the unsafe function for reading the EC data. It does not guarantee + * that the EC will not modify the data as it is being read in. + */ +static void read_ec_accel_data_unsafe(struct cros_ec_accel_legacy_state *st, + unsigned long scan_mask, s16 *data) +{ + int i = 0; + int num_enabled = bitmap_weight(&scan_mask, MAX_AXIS); + + /* Read all sensors enabled in scan_mask. Each value is 2 bytes. */ + while (num_enabled--) { + i = find_next_bit(&scan_mask, MAX_AXIS, i); + ec_cmd_read_u16(st->ec, + EC_MEMMAP_ACC_DATA + + sizeof(s16) * + (1 + i + st->sensor_num * MAX_AXIS), + data); + *data *= st->sign[i]; + i++; + data++; + } +} + +/** + * read_ec_accel_data() - Read acceleration data from EC shared memory. + * @st: Pointer to state information for device. + * @scan_mask: Bitmap of the sensor indices to scan. + * @data: Location to store data. + * + * This is the safe function for reading the EC data. It guarantees that + * the data sampled was not modified by the EC while being read. + * + * Return: 0 if ok, -ve on error + */ +static int read_ec_accel_data(struct cros_ec_accel_legacy_state *st, + unsigned long scan_mask, s16 *data) +{ + u8 samp_id = 0xff; + u8 status = 0; + int ret; + int attempts = 0; + + /* + * Continually read all data from EC until the status byte after + * all reads reflects that the EC is not busy and the sample id + * matches the sample id from before all reads. This guarantees + * that data read in was not modified by the EC while reading. + */ + while ((status & (EC_MEMMAP_ACC_STATUS_BUSY_BIT | + EC_MEMMAP_ACC_STATUS_SAMPLE_ID_MASK)) != samp_id) { + /* If we have tried to read too many times, return error. */ + if (attempts++ >= 5) + return -EIO; + + /* Read status byte until EC is not busy. */ + ret = read_ec_until_not_busy(st); + if (ret < 0) + return ret; + status = ret; + + /* + * Store the current sample id so that we can compare to the + * sample id after reading the data. + */ + samp_id = status & EC_MEMMAP_ACC_STATUS_SAMPLE_ID_MASK; + + /* Read all EC data, format it, and store it into data. */ + read_ec_accel_data_unsafe(st, scan_mask, data); + + /* Read status byte. */ + ec_cmd_read_u8(st->ec, EC_MEMMAP_ACC_STATUS, &status); + } + + return 0; +} + +static int cros_ec_accel_legacy_read(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct cros_ec_accel_legacy_state *st = iio_priv(indio_dev); + s16 data = 0; + int ret = IIO_VAL_INT; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = read_ec_accel_data(st, (1 << chan->scan_index), &data); + if (ret) + return ret; + *val = data; + return IIO_VAL_INT; + case IIO_CHAN_INFO_SCALE: + *val = 0; + *val2 = ACCEL_LEGACY_NSCALE; + return IIO_VAL_INT_PLUS_NANO; + case IIO_CHAN_INFO_CALIBBIAS: + /* Calibration not supported. */ + *val = 0; + return IIO_VAL_INT; + default: + return -EINVAL; + } +} + +static int cros_ec_accel_legacy_write(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + /* + * Do nothing but don't return an error code to allow calibration + * script to work. + */ + if (mask == IIO_CHAN_INFO_CALIBBIAS) + return 0; + + return -EINVAL; +} + +static const struct iio_info cros_ec_accel_legacy_info = { + .read_raw = &cros_ec_accel_legacy_read, + .write_raw = &cros_ec_accel_legacy_write, +}; + +/** + * cros_ec_accel_legacy_capture() - The trigger handler function + * @irq: The interrupt number. + * @p: Private data - always a pointer to the poll func. + * + * On a trigger event occurring, if the pollfunc is attached then this + * handler is called as a threaded interrupt (and hence may sleep). It + * is responsible for grabbing data from the device and pushing it into + * the associated buffer. + * + * Return: IRQ_HANDLED + */ +static irqreturn_t cros_ec_accel_legacy_capture(int irq, void *p) +{ + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct cros_ec_accel_legacy_state *st = iio_priv(indio_dev); + + /* Clear capture data. */ + memset(st->capture_data, 0, sizeof(st->capture_data)); + + /* + * Read data based on which channels are enabled in scan mask. Note + * that on a capture we are always reading the calibrated data. + */ + read_ec_accel_data(st, *indio_dev->active_scan_mask, st->capture_data); + + iio_push_to_buffers_with_timestamp(indio_dev, (void *)st->capture_data, + iio_get_time_ns(indio_dev)); + + /* + * Tell the core we are done with this trigger and ready for the + * next one. + */ + iio_trigger_notify_done(indio_dev->trig); + + return IRQ_HANDLED; +} + +static char *cros_ec_accel_legacy_loc_strings[] = { + [MOTIONSENSE_LOC_BASE] = "base", + [MOTIONSENSE_LOC_LID] = "lid", + [MOTIONSENSE_LOC_MAX] = "unknown", +}; + +static ssize_t cros_ec_accel_legacy_loc(struct iio_dev *indio_dev, + uintptr_t private, + const struct iio_chan_spec *chan, + char *buf) +{ + struct cros_ec_accel_legacy_state *st = iio_priv(indio_dev); + + return sprintf(buf, "%s\n", + cros_ec_accel_legacy_loc_strings[st->sensor_num + + MOTIONSENSE_LOC_BASE]); +} + +static ssize_t cros_ec_accel_legacy_id(struct iio_dev *indio_dev, + uintptr_t private, + const struct iio_chan_spec *chan, + char *buf) +{ + struct cros_ec_accel_legacy_state *st = iio_priv(indio_dev); + + return sprintf(buf, "%d\n", st->sensor_num); +} + +static const struct iio_chan_spec_ext_info cros_ec_accel_legacy_ext_info[] = { + { + .name = "id", + .shared = IIO_SHARED_BY_ALL, + .read = cros_ec_accel_legacy_id, + }, + { + .name = "location", + .shared = IIO_SHARED_BY_ALL, + .read = cros_ec_accel_legacy_loc, + }, + { } +}; + +#define CROS_EC_ACCEL_LEGACY_CHAN(_axis) \ + { \ + .type = IIO_ACCEL, \ + .channel2 = IIO_MOD_X + (_axis), \ + .modified = 1, \ + .info_mask_separate = \ + BIT(IIO_CHAN_INFO_RAW) | \ + BIT(IIO_CHAN_INFO_SCALE) | \ + BIT(IIO_CHAN_INFO_CALIBBIAS), \ + .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SCALE), \ + .ext_info = cros_ec_accel_legacy_ext_info, \ + .scan_type = { \ + .sign = 's', \ + .realbits = 16, \ + .storagebits = 16, \ + }, \ + } \ + +static struct iio_chan_spec ec_accel_channels[] = { + CROS_EC_ACCEL_LEGACY_CHAN(X), + CROS_EC_ACCEL_LEGACY_CHAN(Y), + CROS_EC_ACCEL_LEGACY_CHAN(Z), + IIO_CHAN_SOFT_TIMESTAMP(MAX_AXIS) +}; + +static int cros_ec_accel_legacy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct cros_ec_dev *ec = dev_get_drvdata(dev->parent); + struct cros_ec_sensor_platform *sensor_platform = dev_get_platdata(dev); + struct iio_dev *indio_dev; + struct cros_ec_accel_legacy_state *state; + int ret, i; + + if (!ec || !ec->ec_dev) { + dev_warn(&pdev->dev, "No EC device found.\n"); + return -EINVAL; + } + + if (!ec->ec_dev->cmd_readmem) { + dev_warn(&pdev->dev, "EC does not support direct reads.\n"); + return -EINVAL; + } + + indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*state)); + if (!indio_dev) + return -ENOMEM; + + platform_set_drvdata(pdev, indio_dev); + state = iio_priv(indio_dev); + state->ec = ec->ec_dev; + state->sensor_num = sensor_platform->sensor_num; + + indio_dev->dev.parent = dev; + indio_dev->name = pdev->name; + indio_dev->channels = ec_accel_channels; + /* + * Present the channel using HTML5 standard: + * need to invert X and Y and invert some lid axis. + */ + for (i = X ; i < MAX_AXIS; i++) { + switch (i) { + case X: + ec_accel_channels[X].scan_index = Y; + case Y: + ec_accel_channels[Y].scan_index = X; + case Z: + ec_accel_channels[Z].scan_index = Z; + } + if (state->sensor_num == MOTIONSENSE_LOC_LID && i != Y) + state->sign[i] = -1; + else + state->sign[i] = 1; + } + indio_dev->num_channels = ARRAY_SIZE(ec_accel_channels); + indio_dev->dev.parent = &pdev->dev; + indio_dev->info = &cros_ec_accel_legacy_info; + indio_dev->modes = INDIO_DIRECT_MODE; + + ret = devm_iio_triggered_buffer_setup(dev, indio_dev, NULL, + cros_ec_accel_legacy_capture, + NULL); + if (ret) + return ret; + + return devm_iio_device_register(dev, indio_dev); +} + +static struct platform_driver cros_ec_accel_platform_driver = { + .driver = { + .name = DRV_NAME, + }, + .probe = cros_ec_accel_legacy_probe, +}; +module_platform_driver(cros_ec_accel_platform_driver); + +MODULE_DESCRIPTION("ChromeOS EC legacy accelerometer driver"); +MODULE_AUTHOR("Gwendal Grignou "); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); -- cgit v1.2.3 From 8d59598c35dc1071e6c36f86c9a95f26dd08b4e5 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Thu, 12 Oct 2017 02:16:13 -0400 Subject: cramfs: rehabilitate it Update documentation, pointer to latest tools, appoint myself as maintainer. Given it's been unloved for so long, I don't expect anyone will protest. Signed-off-by: Nicolas Pitre Tested-by: Chris Brandt Signed-off-by: Al Viro --- Documentation/filesystems/cramfs.txt | 42 ++++++++++++++++++++++++++++++++++++ MAINTAINERS | 4 ++-- fs/cramfs/Kconfig | 9 +++++--- 3 files changed, 50 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/cramfs.txt b/Documentation/filesystems/cramfs.txt index 4006298f6707..8e19a53d648b 100644 --- a/Documentation/filesystems/cramfs.txt +++ b/Documentation/filesystems/cramfs.txt @@ -45,6 +45,48 @@ you can just change the #define in mkcramfs.c, so long as you don't mind the filesystem becoming unreadable to future kernels. +Memory Mapped cramfs image +-------------------------- + +The CRAMFS_MTD Kconfig option adds support for loading data directly from +a physical linear memory range (usually non volatile memory like Flash) +instead of going through the block device layer. This saves some memory +since no intermediate buffering is necessary to hold the data before +decompressing. + +And when data blocks are kept uncompressed and properly aligned, they will +automatically be mapped directly into user space whenever possible providing +eXecute-In-Place (XIP) from ROM of read-only segments. Data segments mapped +read-write (hence they have to be copied to RAM) may still be compressed in +the cramfs image in the same file along with non compressed read-only +segments. Both MMU and no-MMU systems are supported. This is particularly +handy for tiny embedded systems with very tight memory constraints. + +The location of the cramfs image in memory is system dependent. You must +know the proper physical address where the cramfs image is located and +configure an MTD device for it. Also, that MTD device must be supported +by a map driver that implements the "point" method. Examples of such +MTD drivers are cfi_cmdset_0001 (Intel/Sharp CFI flash) or physmap +(Flash device in physical memory map). MTD partitions based on such devices +are fine too. Then that device should be specified with the "mtd:" prefix +as the mount device argument. For example, to mount the MTD device named +"fs_partition" on the /mnt directory: + +$ mount -t cramfs mtd:fs_partition /mnt + +To boot a kernel with this as root filesystem, suffice to specify +something like "root=mtd:fs_partition" on the kernel command line. + + +Tools +----- + +A version of mkcramfs that can take advantage of the latest capabilities +described above can be found here: + +https://github.com/npitre/cramfs-tools + + For /usr/share/magic -------------------- diff --git a/MAINTAINERS b/MAINTAINERS index 2d3d750b19c0..3438aaa20b73 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3676,8 +3676,8 @@ F: drivers/cpuidle/* F: include/linux/cpuidle.h CRAMFS FILESYSTEM -W: http://sourceforge.net/projects/cramfs/ -S: Orphan / Obsolete +M: Nicolas Pitre +S: Maintained F: Documentation/filesystems/cramfs.txt F: fs/cramfs/ diff --git a/fs/cramfs/Kconfig b/fs/cramfs/Kconfig index ef86b06bc064..f937082f3244 100644 --- a/fs/cramfs/Kconfig +++ b/fs/cramfs/Kconfig @@ -1,5 +1,5 @@ config CRAMFS - tristate "Compressed ROM file system support (cramfs) (OBSOLETE)" + tristate "Compressed ROM file system support (cramfs)" select ZLIB_INFLATE help Saying Y here includes support for CramFs (Compressed ROM File @@ -15,8 +15,11 @@ config CRAMFS cramfs. Note that the root file system (the one containing the directory /) cannot be compiled as a module. - This filesystem is obsoleted by SquashFS, which is much better - in terms of performance and features. + This filesystem is limited in capabilities and performance on + purpose to remain small and low on RAM usage. It is most suitable + for small embedded systems. If you have ample RAM to spare, you may + consider a more capable compressed filesystem such as SquashFS + which is much better in terms of performance and features. If unsure, say N. -- cgit v1.2.3 From 3991e054832e52119b238b397e5e510d7fee5bb4 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Sun, 8 Oct 2017 14:26:28 +0200 Subject: dt-bindings: samsung: Document binding for new Odroid HC1 board Document the binding for new Hardkernel Odroid HC1 board. Signed-off-by: Krzysztof Kozlowski Acked-by: Rob Herring --- Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt index 3c551894f621..5e95e3e81140 100644 --- a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt +++ b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt @@ -57,6 +57,7 @@ Required root node properties: - "hardkernel,odroid-xu3-lite" - for Exynos5422-based Hardkernel Odroid XU3 Lite board. - "hardkernel,odroid-xu4" - for Exynos5422-based Hardkernel Odroid XU4. + - "hardkernel,odroid-hc1" - for Exynos5422-based Hardkernel Odroid HC1. * Insignal - "insignal,arndale" - for Exynos5250-based Insignal Arndale board. -- cgit v1.2.3 From 70dfb1205224ed62acd46b31ebfa299685b0098a Mon Sep 17 00:00:00 2001 From: Andreas Färber Date: Sat, 12 Aug 2017 00:04:51 +0200 Subject: dt-bindings: Add vendor prefix for ProBox2 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit PROBOX2 is a TV box brand by Hong Kong based online reseller W2COMP Company Limited. Cc: support@probox2.com Acked-by: Rob Herring Signed-off-by: Andreas Färber --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 1ea1fd4232ab..d17d01a160de 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -263,6 +263,7 @@ plathome Plat'Home Co., Ltd. plda PLDA poslab Poslab Technology Co., Ltd. powervr PowerVR (deprecated, use img) +probox2 PROBOX2 (by W2COMP Co., Ltd.) pulsedlight PulsedLight, Inc qca Qualcomm Atheros, Inc. qcom Qualcomm Technologies, Inc -- cgit v1.2.3 From f80ec175ba721fd6d56f407af64a6712d5bdfa1b Mon Sep 17 00:00:00 2001 From: Andreas Färber Date: Sat, 12 Aug 2017 00:22:30 +0200 Subject: dt-bindings: arm: realtek: Add ProBox2 AVA MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Document a compatible string for the PROBOX2 AVA TV Box. Cc: support@probox2.com Acked-by: Rob Herring Signed-off-by: Andreas Färber --- Documentation/devicetree/bindings/arm/realtek.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/realtek.txt b/Documentation/devicetree/bindings/arm/realtek.txt index 13d755787b4f..297c15eb81e2 100644 --- a/Documentation/devicetree/bindings/arm/realtek.txt +++ b/Documentation/devicetree/bindings/arm/realtek.txt @@ -12,6 +12,7 @@ Required root node properties: Root node property compatible must contain, depending on board: + - ProBox2 AVA: "probox2,ava" - Zidoo X9S: "zidoo,x9s" -- cgit v1.2.3 From d93cc0e7888a7c650a9155ad70e2236d15785c1e Mon Sep 17 00:00:00 2001 From: Stefan Brüns Date: Thu, 28 Sep 2017 03:49:23 +0200 Subject: arm64: allwinner: a64: Add devicetree binding for DMA controller MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The A64 is register compatible with the H3, but has a different number of dma channels and request ports. Attach additional properties to the node to allow future reuse of the compatible for controllers with different number of channels/requests. If dma-requests is not specified, the register layout defined maximum of 32 is used. Signed-off-by: Stefan Brüns Acked-by: Rob Herring Signed-off-by: Vinod Koul --- .../devicetree/bindings/dma/sun6i-dma.txt | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/dma/sun6i-dma.txt b/Documentation/devicetree/bindings/dma/sun6i-dma.txt index 98fbe1a5c6dd..9700b1d00fed 100644 --- a/Documentation/devicetree/bindings/dma/sun6i-dma.txt +++ b/Documentation/devicetree/bindings/dma/sun6i-dma.txt @@ -27,6 +27,32 @@ Example: #dma-cells = <1>; }; +------------------------------------------------------------------------------ +For A64 DMA controller: + +Required properties: +- compatible: "allwinner,sun50i-a64-dma" +- dma-channels: Number of DMA channels supported by the controller. + Refer to Documentation/devicetree/bindings/dma/dma.txt +- all properties above, i.e. reg, interrupts, clocks, resets and #dma-cells + +Optional properties: +- dma-requests: Number of DMA request signals supported by the controller. + Refer to Documentation/devicetree/bindings/dma/dma.txt + +Example: + dma: dma-controller@1c02000 { + compatible = "allwinner,sun50i-a64-dma"; + reg = <0x01c02000 0x1000>; + interrupts = ; + clocks = <&ccu CLK_BUS_DMA>; + dma-channels = <8>; + dma-requests = <27>; + resets = <&ccu RST_BUS_DMA>; + #dma-cells = <1>; + }; +------------------------------------------------------------------------------ + Clients: DMA clients connected to the A31 DMA controller must use the format -- cgit v1.2.3 From 8ca8ac1024841781f544427b7ca5684e4c5637a9 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Wed, 11 Oct 2017 11:25:12 +0200 Subject: clk: samsung: Add dt bindings for Exynos4412 ISP clock controller Some registers for the Exynos 4412 ISP (Camera subsystem) clocks are located in the ISP power domain. Because those registers are also located in a different memory region than the main clock controller, support for them can be provided by a separate clock controller. Signed-off-by: Marek Szyprowski Acked-by: Krzysztof Kozlowski Acked-by: Rob Herring Signed-off-by: Sylwester Nawrocki --- .../devicetree/bindings/clock/exynos4-clock.txt | 43 ++++++++++++++++++++++ include/dt-bindings/clock/exynos4.h | 35 ++++++++++++++++++ 2 files changed, 78 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/clock/exynos4-clock.txt b/Documentation/devicetree/bindings/clock/exynos4-clock.txt index f5a5b19ed3b2..bc61c952cb0b 100644 --- a/Documentation/devicetree/bindings/clock/exynos4-clock.txt +++ b/Documentation/devicetree/bindings/clock/exynos4-clock.txt @@ -41,3 +41,46 @@ Example 2: UART controller node that consumes the clock generated by the clock clocks = <&clock CLK_UART2>, <&clock CLK_SCLK_UART2>; clock-names = "uart", "clk_uart_baud0"; }; + +Exynos4412 SoC contains some additional clocks for FIMC-ISP (Camera ISP) +subsystem. Registers for those clocks are located in the ISP power domain. +Because those registers are also located in a different memory region than +the main clock controller, a separate clock controller has to be defined for +handling them. + +Required Properties: + +- compatible: should be "samsung,exynos4412-isp-clock". + +- reg: physical base address of the ISP clock controller and length of memory + mapped region. + +- #clock-cells: should be 1. + +- clocks: list of the clock controller input clock identifiers, + from common clock bindings, should point to CLK_ACLK200 and + CLK_ACLK400_MCUISP clocks from the main clock controller. + +- clock-names: list of the clock controller input clock names, + as described in clock-bindings.txt, should be "aclk200" and + "aclk400_mcuisp". + +- power-domains: a phandle to ISP power domain node as described by + generic PM domain bindings. + +Example 3: The clock controllers bindings for Exynos4412 SoCs. + + clock: clock-controller@10030000 { + compatible = "samsung,exynos4412-clock"; + reg = <0x10030000 0x18000>; + #clock-cells = <1>; + }; + + isp_clock: clock-controller@10048000 { + compatible = "samsung,exynos4412-isp-clock"; + reg = <0x10048000 0x1000>; + #clock-cells = <1>; + power-domains = <&pd_isp>; + clocks = <&clock CLK_ACLK200>, <&clock CLK_ACLK400_MCUISP>; + clock-names = "aclk200", "aclk400_mcuisp"; + }; diff --git a/include/dt-bindings/clock/exynos4.h b/include/dt-bindings/clock/exynos4.h index c40111f36d5e..e9f9d400c322 100644 --- a/include/dt-bindings/clock/exynos4.h +++ b/include/dt-bindings/clock/exynos4.h @@ -272,4 +272,39 @@ /* must be greater than maximal clock id */ #define CLK_NR_CLKS 461 +/* Exynos4x12 ISP clocks */ +#define CLK_ISP_FIMC_ISP 1 +#define CLK_ISP_FIMC_DRC 2 +#define CLK_ISP_FIMC_FD 3 +#define CLK_ISP_FIMC_LITE0 4 +#define CLK_ISP_FIMC_LITE1 5 +#define CLK_ISP_MCUISP 6 +#define CLK_ISP_GICISP 7 +#define CLK_ISP_SMMU_ISP 8 +#define CLK_ISP_SMMU_DRC 9 +#define CLK_ISP_SMMU_FD 10 +#define CLK_ISP_SMMU_LITE0 11 +#define CLK_ISP_SMMU_LITE1 12 +#define CLK_ISP_PPMUISPMX 13 +#define CLK_ISP_PPMUISPX 14 +#define CLK_ISP_MCUCTL_ISP 15 +#define CLK_ISP_MPWM_ISP 16 +#define CLK_ISP_I2C0_ISP 17 +#define CLK_ISP_I2C1_ISP 18 +#define CLK_ISP_MTCADC_ISP 19 +#define CLK_ISP_PWM_ISP 20 +#define CLK_ISP_WDT_ISP 21 +#define CLK_ISP_UART_ISP 22 +#define CLK_ISP_ASYNCAXIM 23 +#define CLK_ISP_SMMU_ISPCX 24 +#define CLK_ISP_SPI0_ISP 25 +#define CLK_ISP_SPI1_ISP 26 + +#define CLK_ISP_DIV_ISP0 27 +#define CLK_ISP_DIV_ISP1 28 +#define CLK_ISP_DIV_MCUISP0 29 +#define CLK_ISP_DIV_MCUISP1 30 + +#define CLK_NR_ISP_CLKS 31 + #endif /* _DT_BINDINGS_CLOCK_EXYNOS_4_H */ -- cgit v1.2.3 From 503c3117d05c184b431e403cd05c463ac41370f0 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Mon, 16 Oct 2017 11:55:52 +0200 Subject: udf: Remove some outdate references from documentation Remove outdated references to maintainer and mailing list from the documentation - reference MAINTAINERS instead. Also update reference to current repository of udf-tools. Signed-off-by: Jan Kara --- Documentation/filesystems/udf.txt | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/udf.txt b/Documentation/filesystems/udf.txt index 902b95d0ee51..d3d0e3218f86 100644 --- a/Documentation/filesystems/udf.txt +++ b/Documentation/filesystems/udf.txt @@ -1,11 +1,9 @@ * * Documentation/filesystems/udf.txt * -UDF Filesystem version 0.9.8.1 If you encounter problems with reading UDF discs using this driver, -please report them to linux_udf@hpesjro.fc.hp.com, which is the -developer's list. +please report them according to MAINTAINERS file. Write support requires a block driver which supports writing. Currently dvd+rw drives and media support true random sector writes, and so a udf @@ -73,10 +71,8 @@ The following expect a offset from the partition root. For the latest version and toolset see: - http://linux-udf.sourceforge.net/ + https://github.com/pali/udftools Documentation on UDF and ECMA 167 is available FREE from: http://www.osta.org/ http://www.ecma-international.org/ - -Ben Fennema -- cgit v1.2.3 From 162d58c26d65e1486d18436eb151148a7f9886e5 Mon Sep 17 00:00:00 2001 From: Alexandre Torgue Date: Mon, 16 Oct 2017 13:45:58 +0200 Subject: ARM: dts: stm32: change pinctrl bindings definition Initially each pin was declared in "include/dt-bindings/stm32-pinfunc.h" and each definition contained SOC names (ex: STM32F429_PA9_FUNC_USART1_TX). Since this approach was approved, the number of supported MCU has increased (STM32F429/STM32F469/STM32f746/STM32H743). To avoid to add a new file in "include/dt-bindings" each time a new STM32 SOC arrives I propose a new approach which consist to use a macro to define pin muxing in device tree. All STM32 will use the common macro to define pinmux. Furthermore, it will make STM32 maintenance and integration of new SOC easier . Signed-off-by: Alexandre TORGUE Reviewed-by: Vikas MANOCHA Reviewed-by: Benjamin Gaignard Acked-by: Linus Walleij Acked-by: Rob Herring --- .../bindings/pinctrl/st,stm32-pinctrl.txt | 22 +- arch/arm/boot/dts/stm32f4-pinctrl.dtsi | 176 +-- arch/arm/boot/dts/stm32f746.dtsi | 16 +- arch/arm/boot/dts/stm32h743-pinctrl.dtsi | 10 +- include/dt-bindings/pinctrl/stm32-pinfunc.h | 30 + include/dt-bindings/pinctrl/stm32f429-pinfunc.h | 1239 --------------- include/dt-bindings/pinctrl/stm32f746-pinfunc.h | 1324 ---------------- include/dt-bindings/pinctrl/stm32h7-pinfunc.h | 1612 -------------------- 8 files changed, 151 insertions(+), 4278 deletions(-) create mode 100644 include/dt-bindings/pinctrl/stm32-pinfunc.h delete mode 100644 include/dt-bindings/pinctrl/stm32f429-pinfunc.h delete mode 100644 include/dt-bindings/pinctrl/stm32f746-pinfunc.h delete mode 100644 include/dt-bindings/pinctrl/stm32h7-pinfunc.h (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt index 33e3d3c47552..58c2a4c229db 100644 --- a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt @@ -143,6 +143,24 @@ Required properties: * 16 : Alternate Function 15 * 17 : Analog + To simplify the usage, macro is available to generate "pinmux" field. + This macro is available here: + - include/dt-bindings/pinctrl/stm32-pinfunc.h + + Some examples of using macro: + /* GPIO A9 set as alernate function 2 */ + ... { + pinmux = ; + }; + /* GPIO A9 set as GPIO */ + ... { + pinmux = ; + }; + /* GPIO A9 set as analog */ + ... { + pinmux = ; + }; + Optional properties: - GENERIC_PINCONFIG: is the generic pinconfig options to use. Available options are: @@ -165,13 +183,13 @@ pin-controller { ... usart1_pins_a: usart1@0 { pins1 { - pinmux = ; + pinmux = ; bias-disable; drive-push-pull; slew-rate = <0>; }; pins2 { - pinmux = ; + pinmux = ; bias-disable; }; }; diff --git a/arch/arm/boot/dts/stm32f4-pinctrl.dtsi b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi index 7f3560c0211d..ae94d86c53c4 100644 --- a/arch/arm/boot/dts/stm32f4-pinctrl.dtsi +++ b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi @@ -40,7 +40,7 @@ * OTHER DEALINGS IN THE SOFTWARE. */ -#include +#include #include / { @@ -165,35 +165,35 @@ usart1_pins_a: usart1@0 { pins1 { - pinmux = ; + pinmux = ; /* USART1_TX */ bias-disable; drive-push-pull; slew-rate = <0>; }; pins2 { - pinmux = ; + pinmux = ; /* USART1_RX */ bias-disable; }; }; usart3_pins_a: usart3@0 { pins1 { - pinmux = ; + pinmux = ; /* USART3_TX */ bias-disable; drive-push-pull; slew-rate = <0>; }; pins2 { - pinmux = ; + pinmux = ; /* USART3_RX */ bias-disable; }; }; usbotg_fs_pins_a: usbotg_fs@0 { pins { - pinmux = , - , - ; + pinmux = , /* OTG_FS_ID */ + , /* OTG_FS_DM */ + ; /* OTG_FS_DP */ bias-disable; drive-push-pull; slew-rate = <2>; @@ -202,9 +202,9 @@ usbotg_fs_pins_b: usbotg_fs@1 { pins { - pinmux = , - , - ; + pinmux = , /* OTG_HS_ID */ + , /* OTG_HS_DM */ + ; /* OTG_HS_DP */ bias-disable; drive-push-pull; slew-rate = <2>; @@ -213,18 +213,18 @@ usbotg_hs_pins_a: usbotg_hs@0 { pins { - pinmux = , - , - , - , - , - , - , - , - , - , - , - ; + pinmux = , /* OTG_HS_ULPI_NXT*/ + , /* OTG_HS_ULPI_DIR */ + , /* OTG_HS_ULPI_STP */ + , /* OTG_HS_ULPI_CK */ + , /* OTG_HS_ULPI_D0 */ + , /* OTG_HS_ULPI_D1 */ + , /* OTG_HS_ULPI_D2 */ + , /* OTG_HS_ULPI_D3 */ + , /* OTG_HS_ULPI_D4 */ + , /* OTG_HS_ULPI_D5 */ + , /* OTG_HS_ULPI_D6 */ + ; /* OTG_HS_ULPI_D7 */ bias-disable; drive-push-pull; slew-rate = <2>; @@ -233,49 +233,49 @@ ethernet_mii: mii@0 { pins { - pinmux = , - , - , - , - , - , - , - , - , - , - , - , - , - ; + pinmux = , /* ETH_MII_TXD0_ETH_RMII_TXD0 */ + , /* ETH_MII_TXD1_ETH_RMII_TXD1 */ + , /* ETH_MII_TXD2 */ + , /* ETH_MII_TXD3 */ + , /* ETH_MII_TX_CLK */ + , /* ETH_MII_TX_EN_ETH_RMII_TX_EN */ + , /* ETH_MDIO */ + , /* ETH_MDC */ + , /* ETH_MII_RX_CLK_ETH_RMII_REF_CLK */ + , /* ETH_MII_RX_DV_ETH_RMII_CRS_DV */ + , /* ETH_MII_RXD0_ETH_RMII_RXD0 */ + , /* ETH_MII_RXD1_ETH_RMII_RXD1 */ + , /* ETH_MII_RXD2 */ + ; /* ETH_MII_RXD3 */ slew-rate = <2>; }; }; adc3_in8_pin: adc@200 { pins { - pinmux = ; + pinmux = ; }; }; pwm1_pins: pwm@1 { pins { - pinmux = , - , - ; + pinmux = , /* TIM1_CH1 */ + , /* TIM1_CH1N */ + ; /* TIM1_BKIN */ }; }; pwm3_pins: pwm@3 { pins { - pinmux = , - ; + pinmux = , /* TIM3_CH1 */ + ; /* TIM3_CH2 */ }; }; i2c1_pins: i2c1@0 { pins { - pinmux = , - ; + pinmux = , /* I2C1_SDA */ + ; /* I2C1_SCL */ bias-disable; drive-open-drain; slew-rate = <3>; @@ -284,55 +284,55 @@ ltdc_pins: ltdc@0 { pins { - pinmux = , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - , - ; + pinmux = , /* LCD_HSYNC */ + , /* LCD_VSYNC */ + , /* LCD_CLK */ + , /* LCD_R0 */ + , /* LCD_R1 */ + , /* LCD_R2 */ + , /* LCD_R3 */ + , /* LCD_R4 */ + , /* LCD_R5 */ + , /* LCD_R6*/ + , /* LCD_R7 */ + , /* LCD_G0 */ + , /* LCD_G1 */ + , /* LCD_G2 */ + , /* LCD_G3 */ + , /* LCD_G4 */ + , /* LCD_B0 */ + , /* LCD_B1 */ + , /* LCD_B2 */ + , /* LCD_B3*/ + , /* LCD_G5 */ + , /* LCD_G6 */ + , /* LCD_G7 */ + , /* LCD_B4 */ + , /* LCD_B5 */ + , /* LCD_B6 */ + , /* LCD_B7 */ + ; /* LCD_DE */ slew-rate = <2>; }; }; dcmi_pins: dcmi@0 { pins { - pinmux = , - , - , - , - , - , - , - , - , - , - , - , - , - , - ; + pinmux = , /* DCMI_HSYNC */ + , /* DCMI_VSYNC */ + , /* DCMI_PIXCLK */ + , /* DCMI_D0 */ + , /* DCMI_D1 */ + , /* DCMI_D2 */ + , /* DCMI_D3 */ + , /*DCMI_D4 */ + , /* DCMI_D5 */ + , /* DCMI_D6 */ + , /* DCMI_D7 */ + , /* DCMI_D8 */ + , /* DCMI_D9 */ + , /* DCMI_D10 */ + ; /* DCMI_D11 */ bias-disable; drive-push-pull; slew-rate = <3>; diff --git a/arch/arm/boot/dts/stm32f746.dtsi b/arch/arm/boot/dts/stm32f746.dtsi index 73bf8c1529a1..faaeca803943 100644 --- a/arch/arm/boot/dts/stm32f746.dtsi +++ b/arch/arm/boot/dts/stm32f746.dtsi @@ -42,7 +42,7 @@ #include "skeleton.dtsi" #include "armv7-m.dtsi" -#include +#include #include #include @@ -619,7 +619,7 @@ cec_pins_a: cec@0 { pins { - pinmux = ; + pinmux = ; /* HDMI CEC */ slew-rate = <0>; drive-open-drain; bias-disable; @@ -628,34 +628,34 @@ usart1_pins_a: usart1@0 { pins1 { - pinmux = ; + pinmux = ; /* USART1_TX */ bias-disable; drive-push-pull; slew-rate = <0>; }; pins2 { - pinmux = ; + pinmux = ; /* USART1_RX */ bias-disable; }; }; usart1_pins_b: usart1@1 { pins1 { - pinmux = ; + pinmux = ; /* USART1_TX */ bias-disable; drive-push-pull; slew-rate = <0>; }; pins2 { - pinmux = ; + pinmux = ; /* USART1_RX */ bias-disable; }; }; i2c1_pins_b: i2c1@0 { pins { - pinmux = , - ; + pinmux = , /* I2C1 SDA */ + ; /* I2C1 SCL */ bias-disable; drive-open-drain; slew-rate = <0>; diff --git a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi index d438818155b2..65c1cd043987 100644 --- a/arch/arm/boot/dts/stm32h743-pinctrl.dtsi +++ b/arch/arm/boot/dts/stm32h743-pinctrl.dtsi @@ -40,7 +40,7 @@ * OTHER DEALINGS IN THE SOFTWARE. */ -#include +#include / { soc { @@ -141,26 +141,26 @@ usart1_pins: usart1@0 { pins1 { - pinmux = ; + pinmux = ; /* USART1_TX */ bias-disable; drive-push-pull; slew-rate = <0>; }; pins2 { - pinmux = ; + pinmux = ; /* USART1_RX */ bias-disable; }; }; usart2_pins: usart2@0 { pins1 { - pinmux = ; + pinmux = ; /* USART2_TX */ bias-disable; drive-push-pull; slew-rate = <0>; }; pins2 { - pinmux = ; + pinmux = ; /* USART2_RX */ bias-disable; }; }; diff --git a/include/dt-bindings/pinctrl/stm32-pinfunc.h b/include/dt-bindings/pinctrl/stm32-pinfunc.h new file mode 100644 index 000000000000..b8dfe31821e6 --- /dev/null +++ b/include/dt-bindings/pinctrl/stm32-pinfunc.h @@ -0,0 +1,30 @@ +#ifndef _DT_BINDINGS_STM32_PINFUNC_H +#define _DT_BINDINGS_STM32_PINFUNC_H + +/* define PIN modes */ +#define GPIO 0x0 +#define AF0 0x1 +#define AF1 0x2 +#define AF2 0x3 +#define AF3 0x4 +#define AF4 0x5 +#define AF5 0x6 +#define AF6 0x7 +#define AF7 0x8 +#define AF8 0x9 +#define AF9 0xa +#define AF10 0xb +#define AF11 0xc +#define AF12 0xd +#define AF13 0xe +#define AF14 0xf +#define AF15 0x10 +#define ANALOG 0x11 + +/* define Pins number*/ +#define PIN_NO(port, line) (((port) - 'A') * 0x10 + (line)) + +#define STM32_PINMUX(port, line, mode) (((PIN_NO(port, line)) << 8) | (mode)) + +#endif /* _DT_BINDINGS_STM32_PINFUNC_H */ + diff --git a/include/dt-bindings/pinctrl/stm32f429-pinfunc.h b/include/dt-bindings/pinctrl/stm32f429-pinfunc.h deleted file mode 100644 index 26f18798d949..000000000000 --- a/include/dt-bindings/pinctrl/stm32f429-pinfunc.h +++ /dev/null @@ -1,1239 +0,0 @@ -#ifndef _DT_BINDINGS_STM32F429_PINFUNC_H -#define _DT_BINDINGS_STM32F429_PINFUNC_H - -#define STM32F429_PA0_FUNC_GPIO 0x0 -#define STM32F429_PA0_FUNC_TIM2_CH1_TIM2_ETR 0x2 -#define STM32F429_PA0_FUNC_TIM5_CH1 0x3 -#define STM32F429_PA0_FUNC_TIM8_ETR 0x4 -#define STM32F429_PA0_FUNC_USART2_CTS 0x8 -#define STM32F429_PA0_FUNC_UART4_TX 0x9 -#define STM32F429_PA0_FUNC_ETH_MII_CRS 0xc -#define STM32F429_PA0_FUNC_EVENTOUT 0x10 -#define STM32F429_PA0_FUNC_ANALOG 0x11 - -#define STM32F429_PA1_FUNC_GPIO 0x100 -#define STM32F429_PA1_FUNC_TIM2_CH2 0x102 -#define STM32F429_PA1_FUNC_TIM5_CH2 0x103 -#define STM32F429_PA1_FUNC_USART2_RTS 0x108 -#define STM32F429_PA1_FUNC_UART4_RX 0x109 -#define STM32F429_PA1_FUNC_ETH_MII_RX_CLK_ETH_RMII_REF_CLK 0x10c -#define STM32F429_PA1_FUNC_EVENTOUT 0x110 -#define STM32F429_PA1_FUNC_ANALOG 0x111 - -#define STM32F429_PA2_FUNC_GPIO 0x200 -#define STM32F429_PA2_FUNC_TIM2_CH3 0x202 -#define STM32F429_PA2_FUNC_TIM5_CH3 0x203 -#define STM32F429_PA2_FUNC_TIM9_CH1 0x204 -#define STM32F429_PA2_FUNC_USART2_TX 0x208 -#define STM32F429_PA2_FUNC_ETH_MDIO 0x20c -#define STM32F429_PA2_FUNC_EVENTOUT 0x210 -#define STM32F429_PA2_FUNC_ANALOG 0x211 - -#define STM32F429_PA3_FUNC_GPIO 0x300 -#define STM32F429_PA3_FUNC_TIM2_CH4 0x302 -#define STM32F429_PA3_FUNC_TIM5_CH4 0x303 -#define STM32F429_PA3_FUNC_TIM9_CH2 0x304 -#define STM32F429_PA3_FUNC_USART2_RX 0x308 -#define STM32F429_PA3_FUNC_OTG_HS_ULPI_D0 0x30b -#define STM32F429_PA3_FUNC_ETH_MII_COL 0x30c -#define STM32F429_PA3_FUNC_LCD_B5 0x30f -#define STM32F429_PA3_FUNC_EVENTOUT 0x310 -#define STM32F429_PA3_FUNC_ANALOG 0x311 - -#define STM32F429_PA4_FUNC_GPIO 0x400 -#define STM32F429_PA4_FUNC_SPI1_NSS 0x406 -#define STM32F429_PA4_FUNC_SPI3_NSS_I2S3_WS 0x407 -#define STM32F429_PA4_FUNC_USART2_CK 0x408 -#define STM32F429_PA4_FUNC_OTG_HS_SOF 0x40d -#define STM32F429_PA4_FUNC_DCMI_HSYNC 0x40e -#define STM32F429_PA4_FUNC_LCD_VSYNC 0x40f -#define STM32F429_PA4_FUNC_EVENTOUT 0x410 -#define STM32F429_PA4_FUNC_ANALOG 0x411 - -#define STM32F429_PA5_FUNC_GPIO 0x500 -#define STM32F429_PA5_FUNC_TIM2_CH1_TIM2_ETR 0x502 -#define STM32F429_PA5_FUNC_TIM8_CH1N 0x504 -#define STM32F429_PA5_FUNC_SPI1_SCK 0x506 -#define STM32F429_PA5_FUNC_OTG_HS_ULPI_CK 0x50b -#define STM32F429_PA5_FUNC_EVENTOUT 0x510 -#define STM32F429_PA5_FUNC_ANALOG 0x511 - -#define STM32F429_PA6_FUNC_GPIO 0x600 -#define STM32F429_PA6_FUNC_TIM1_BKIN 0x602 -#define STM32F429_PA6_FUNC_TIM3_CH1 0x603 -#define STM32F429_PA6_FUNC_TIM8_BKIN 0x604 -#define STM32F429_PA6_FUNC_SPI1_MISO 0x606 -#define STM32F429_PA6_FUNC_TIM13_CH1 0x60a -#define STM32F429_PA6_FUNC_DCMI_PIXCLK 0x60e -#define STM32F429_PA6_FUNC_LCD_G2 0x60f -#define STM32F429_PA6_FUNC_EVENTOUT 0x610 -#define STM32F429_PA6_FUNC_ANALOG 0x611 - -#define STM32F429_PA7_FUNC_GPIO 0x700 -#define STM32F429_PA7_FUNC_TIM1_CH1N 0x702 -#define STM32F429_PA7_FUNC_TIM3_CH2 0x703 -#define STM32F429_PA7_FUNC_TIM8_CH1N 0x704 -#define STM32F429_PA7_FUNC_SPI1_MOSI 0x706 -#define STM32F429_PA7_FUNC_TIM14_CH1 0x70a -#define STM32F429_PA7_FUNC_ETH_MII_RX_DV_ETH_RMII_CRS_DV 0x70c -#define STM32F429_PA7_FUNC_EVENTOUT 0x710 -#define STM32F429_PA7_FUNC_ANALOG 0x711 - -#define STM32F429_PA8_FUNC_GPIO 0x800 -#define STM32F429_PA8_FUNC_MCO1 0x801 -#define STM32F429_PA8_FUNC_TIM1_CH1 0x802 -#define STM32F429_PA8_FUNC_I2C3_SCL 0x805 -#define STM32F429_PA8_FUNC_USART1_CK 0x808 -#define STM32F429_PA8_FUNC_OTG_FS_SOF 0x80b -#define STM32F429_PA8_FUNC_LCD_R6 0x80f -#define STM32F429_PA8_FUNC_EVENTOUT 0x810 -#define STM32F429_PA8_FUNC_ANALOG 0x811 - -#define STM32F429_PA9_FUNC_GPIO 0x900 -#define STM32F429_PA9_FUNC_TIM1_CH2 0x902 -#define STM32F429_PA9_FUNC_I2C3_SMBA 0x905 -#define STM32F429_PA9_FUNC_USART1_TX 0x908 -#define STM32F429_PA9_FUNC_DCMI_D0 0x90e -#define STM32F429_PA9_FUNC_EVENTOUT 0x910 -#define STM32F429_PA9_FUNC_ANALOG 0x911 - -#define STM32F429_PA10_FUNC_GPIO 0xa00 -#define STM32F429_PA10_FUNC_TIM1_CH3 0xa02 -#define STM32F429_PA10_FUNC_USART1_RX 0xa08 -#define STM32F429_PA10_FUNC_OTG_FS_ID 0xa0b -#define STM32F429_PA10_FUNC_DCMI_D1 0xa0e -#define STM32F429_PA10_FUNC_EVENTOUT 0xa10 -#define STM32F429_PA10_FUNC_ANALOG 0xa11 - -#define STM32F429_PA11_FUNC_GPIO 0xb00 -#define STM32F429_PA11_FUNC_TIM1_CH4 0xb02 -#define STM32F429_PA11_FUNC_USART1_CTS 0xb08 -#define STM32F429_PA11_FUNC_CAN1_RX 0xb0a -#define STM32F429_PA11_FUNC_OTG_FS_DM 0xb0b -#define STM32F429_PA11_FUNC_LCD_R4 0xb0f -#define STM32F429_PA11_FUNC_EVENTOUT 0xb10 -#define STM32F429_PA11_FUNC_ANALOG 0xb11 - -#define STM32F429_PA12_FUNC_GPIO 0xc00 -#define STM32F429_PA12_FUNC_TIM1_ETR 0xc02 -#define STM32F429_PA12_FUNC_USART1_RTS 0xc08 -#define STM32F429_PA12_FUNC_CAN1_TX 0xc0a -#define STM32F429_PA12_FUNC_OTG_FS_DP 0xc0b -#define STM32F429_PA12_FUNC_LCD_R5 0xc0f -#define STM32F429_PA12_FUNC_EVENTOUT 0xc10 -#define STM32F429_PA12_FUNC_ANALOG 0xc11 - -#define STM32F429_PA13_FUNC_GPIO 0xd00 -#define STM32F429_PA13_FUNC_JTMS_SWDIO 0xd01 -#define STM32F429_PA13_FUNC_EVENTOUT 0xd10 -#define STM32F429_PA13_FUNC_ANALOG 0xd11 - -#define STM32F429_PA14_FUNC_GPIO 0xe00 -#define STM32F429_PA14_FUNC_JTCK_SWCLK 0xe01 -#define STM32F429_PA14_FUNC_EVENTOUT 0xe10 -#define STM32F429_PA14_FUNC_ANALOG 0xe11 - -#define STM32F429_PA15_FUNC_GPIO 0xf00 -#define STM32F429_PA15_FUNC_JTDI 0xf01 -#define STM32F429_PA15_FUNC_TIM2_CH1_TIM2_ETR 0xf02 -#define STM32F429_PA15_FUNC_SPI1_NSS 0xf06 -#define STM32F429_PA15_FUNC_SPI3_NSS_I2S3_WS 0xf07 -#define STM32F429_PA15_FUNC_EVENTOUT 0xf10 -#define STM32F429_PA15_FUNC_ANALOG 0xf11 - - - -#define STM32F429_PB0_FUNC_GPIO 0x1000 -#define STM32F429_PB0_FUNC_TIM1_CH2N 0x1002 -#define STM32F429_PB0_FUNC_TIM3_CH3 0x1003 -#define STM32F429_PB0_FUNC_TIM8_CH2N 0x1004 -#define STM32F429_PB0_FUNC_LCD_R3 0x100a -#define STM32F429_PB0_FUNC_OTG_HS_ULPI_D1 0x100b -#define STM32F429_PB0_FUNC_ETH_MII_RXD2 0x100c -#define STM32F429_PB0_FUNC_EVENTOUT 0x1010 -#define STM32F429_PB0_FUNC_ANALOG 0x1011 - -#define STM32F429_PB1_FUNC_GPIO 0x1100 -#define STM32F429_PB1_FUNC_TIM1_CH3N 0x1102 -#define STM32F429_PB1_FUNC_TIM3_CH4 0x1103 -#define STM32F429_PB1_FUNC_TIM8_CH3N 0x1104 -#define STM32F429_PB1_FUNC_LCD_R6 0x110a -#define STM32F429_PB1_FUNC_OTG_HS_ULPI_D2 0x110b -#define STM32F429_PB1_FUNC_ETH_MII_RXD3 0x110c -#define STM32F429_PB1_FUNC_EVENTOUT 0x1110 -#define STM32F429_PB1_FUNC_ANALOG 0x1111 - -#define STM32F429_PB2_FUNC_GPIO 0x1200 -#define STM32F429_PB2_FUNC_EVENTOUT 0x1210 -#define STM32F429_PB2_FUNC_ANALOG 0x1211 - -#define STM32F429_PB3_FUNC_GPIO 0x1300 -#define STM32F429_PB3_FUNC_JTDO_TRACESWO 0x1301 -#define STM32F429_PB3_FUNC_TIM2_CH2 0x1302 -#define STM32F429_PB3_FUNC_SPI1_SCK 0x1306 -#define STM32F429_PB3_FUNC_SPI3_SCK_I2S3_CK 0x1307 -#define STM32F429_PB3_FUNC_EVENTOUT 0x1310 -#define STM32F429_PB3_FUNC_ANALOG 0x1311 - -#define STM32F429_PB4_FUNC_GPIO 0x1400 -#define STM32F429_PB4_FUNC_NJTRST 0x1401 -#define STM32F429_PB4_FUNC_TIM3_CH1 0x1403 -#define STM32F429_PB4_FUNC_SPI1_MISO 0x1406 -#define STM32F429_PB4_FUNC_SPI3_MISO 0x1407 -#define STM32F429_PB4_FUNC_I2S3EXT_SD 0x1408 -#define STM32F429_PB4_FUNC_EVENTOUT 0x1410 -#define STM32F429_PB4_FUNC_ANALOG 0x1411 - -#define STM32F429_PB5_FUNC_GPIO 0x1500 -#define STM32F429_PB5_FUNC_TIM3_CH2 0x1503 -#define STM32F429_PB5_FUNC_I2C1_SMBA 0x1505 -#define STM32F429_PB5_FUNC_SPI1_MOSI 0x1506 -#define STM32F429_PB5_FUNC_SPI3_MOSI_I2S3_SD 0x1507 -#define STM32F429_PB5_FUNC_CAN2_RX 0x150a -#define STM32F429_PB5_FUNC_OTG_HS_ULPI_D7 0x150b -#define STM32F429_PB5_FUNC_ETH_PPS_OUT 0x150c -#define STM32F429_PB5_FUNC_FMC_SDCKE1 0x150d -#define STM32F429_PB5_FUNC_DCMI_D10 0x150e -#define STM32F429_PB5_FUNC_EVENTOUT 0x1510 -#define STM32F429_PB5_FUNC_ANALOG 0x1511 - -#define STM32F429_PB6_FUNC_GPIO 0x1600 -#define STM32F429_PB6_FUNC_TIM4_CH1 0x1603 -#define STM32F429_PB6_FUNC_I2C1_SCL 0x1605 -#define STM32F429_PB6_FUNC_USART1_TX 0x1608 -#define STM32F429_PB6_FUNC_CAN2_TX 0x160a -#define STM32F429_PB6_FUNC_FMC_SDNE1 0x160d -#define STM32F429_PB6_FUNC_DCMI_D5 0x160e -#define STM32F429_PB6_FUNC_EVENTOUT 0x1610 -#define STM32F429_PB6_FUNC_ANALOG 0x1611 - -#define STM32F429_PB7_FUNC_GPIO 0x1700 -#define STM32F429_PB7_FUNC_TIM4_CH2 0x1703 -#define STM32F429_PB7_FUNC_I2C1_SDA 0x1705 -#define STM32F429_PB7_FUNC_USART1_RX 0x1708 -#define STM32F429_PB7_FUNC_FMC_NL 0x170d -#define STM32F429_PB7_FUNC_DCMI_VSYNC 0x170e -#define STM32F429_PB7_FUNC_EVENTOUT 0x1710 -#define STM32F429_PB7_FUNC_ANALOG 0x1711 - -#define STM32F429_PB8_FUNC_GPIO 0x1800 -#define STM32F429_PB8_FUNC_TIM4_CH3 0x1803 -#define STM32F429_PB8_FUNC_TIM10_CH1 0x1804 -#define STM32F429_PB8_FUNC_I2C1_SCL 0x1805 -#define STM32F429_PB8_FUNC_CAN1_RX 0x180a -#define STM32F429_PB8_FUNC_ETH_MII_TXD3 0x180c -#define STM32F429_PB8_FUNC_SDIO_D4 0x180d -#define STM32F429_PB8_FUNC_DCMI_D6 0x180e -#define STM32F429_PB8_FUNC_LCD_B6 0x180f -#define STM32F429_PB8_FUNC_EVENTOUT 0x1810 -#define STM32F429_PB8_FUNC_ANALOG 0x1811 - -#define STM32F429_PB9_FUNC_GPIO 0x1900 -#define STM32F429_PB9_FUNC_TIM4_CH4 0x1903 -#define STM32F429_PB9_FUNC_TIM11_CH1 0x1904 -#define STM32F429_PB9_FUNC_I2C1_SDA 0x1905 -#define STM32F429_PB9_FUNC_SPI2_NSS_I2S2_WS 0x1906 -#define STM32F429_PB9_FUNC_CAN1_TX 0x190a -#define STM32F429_PB9_FUNC_SDIO_D5 0x190d -#define STM32F429_PB9_FUNC_DCMI_D7 0x190e -#define STM32F429_PB9_FUNC_LCD_B7 0x190f -#define STM32F429_PB9_FUNC_EVENTOUT 0x1910 -#define STM32F429_PB9_FUNC_ANALOG 0x1911 - -#define STM32F429_PB10_FUNC_GPIO 0x1a00 -#define STM32F429_PB10_FUNC_TIM2_CH3 0x1a02 -#define STM32F429_PB10_FUNC_I2C2_SCL 0x1a05 -#define STM32F429_PB10_FUNC_SPI2_SCK_I2S2_CK 0x1a06 -#define STM32F429_PB10_FUNC_USART3_TX 0x1a08 -#define STM32F429_PB10_FUNC_OTG_HS_ULPI_D3 0x1a0b -#define STM32F429_PB10_FUNC_ETH_MII_RX_ER 0x1a0c -#define STM32F429_PB10_FUNC_LCD_G4 0x1a0f -#define STM32F429_PB10_FUNC_EVENTOUT 0x1a10 -#define STM32F429_PB10_FUNC_ANALOG 0x1a11 - -#define STM32F429_PB11_FUNC_GPIO 0x1b00 -#define STM32F429_PB11_FUNC_TIM2_CH4 0x1b02 -#define STM32F429_PB11_FUNC_I2C2_SDA 0x1b05 -#define STM32F429_PB11_FUNC_USART3_RX 0x1b08 -#define STM32F429_PB11_FUNC_OTG_HS_ULPI_D4 0x1b0b -#define STM32F429_PB11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN 0x1b0c -#define STM32F429_PB11_FUNC_LCD_G5 0x1b0f -#define STM32F429_PB11_FUNC_EVENTOUT 0x1b10 -#define STM32F429_PB11_FUNC_ANALOG 0x1b11 - -#define STM32F429_PB12_FUNC_GPIO 0x1c00 -#define STM32F429_PB12_FUNC_TIM1_BKIN 0x1c02 -#define STM32F429_PB12_FUNC_I2C2_SMBA 0x1c05 -#define STM32F429_PB12_FUNC_SPI2_NSS_I2S2_WS 0x1c06 -#define STM32F429_PB12_FUNC_USART3_CK 0x1c08 -#define STM32F429_PB12_FUNC_CAN2_RX 0x1c0a -#define STM32F429_PB12_FUNC_OTG_HS_ULPI_D5 0x1c0b -#define STM32F429_PB12_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0 0x1c0c -#define STM32F429_PB12_FUNC_OTG_HS_ID 0x1c0d -#define STM32F429_PB12_FUNC_EVENTOUT 0x1c10 -#define STM32F429_PB12_FUNC_ANALOG 0x1c11 - -#define STM32F429_PB13_FUNC_GPIO 0x1d00 -#define STM32F429_PB13_FUNC_TIM1_CH1N 0x1d02 -#define STM32F429_PB13_FUNC_SPI2_SCK_I2S2_CK 0x1d06 -#define STM32F429_PB13_FUNC_USART3_CTS 0x1d08 -#define STM32F429_PB13_FUNC_CAN2_TX 0x1d0a -#define STM32F429_PB13_FUNC_OTG_HS_ULPI_D6 0x1d0b -#define STM32F429_PB13_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1 0x1d0c -#define STM32F429_PB13_FUNC_EVENTOUT 0x1d10 -#define STM32F429_PB13_FUNC_ANALOG 0x1d11 - -#define STM32F429_PB14_FUNC_GPIO 0x1e00 -#define STM32F429_PB14_FUNC_TIM1_CH2N 0x1e02 -#define STM32F429_PB14_FUNC_TIM8_CH2N 0x1e04 -#define STM32F429_PB14_FUNC_SPI2_MISO 0x1e06 -#define STM32F429_PB14_FUNC_I2S2EXT_SD 0x1e07 -#define STM32F429_PB14_FUNC_USART3_RTS 0x1e08 -#define STM32F429_PB14_FUNC_TIM12_CH1 0x1e0a -#define STM32F429_PB14_FUNC_OTG_HS_DM 0x1e0d -#define STM32F429_PB14_FUNC_EVENTOUT 0x1e10 -#define STM32F429_PB14_FUNC_ANALOG 0x1e11 - -#define STM32F429_PB15_FUNC_GPIO 0x1f00 -#define STM32F429_PB15_FUNC_RTC_REFIN 0x1f01 -#define STM32F429_PB15_FUNC_TIM1_CH3N 0x1f02 -#define STM32F429_PB15_FUNC_TIM8_CH3N 0x1f04 -#define STM32F429_PB15_FUNC_SPI2_MOSI_I2S2_SD 0x1f06 -#define STM32F429_PB15_FUNC_TIM12_CH2 0x1f0a -#define STM32F429_PB15_FUNC_OTG_HS_DP 0x1f0d -#define STM32F429_PB15_FUNC_EVENTOUT 0x1f10 -#define STM32F429_PB15_FUNC_ANALOG 0x1f11 - - - -#define STM32F429_PC0_FUNC_GPIO 0x2000 -#define STM32F429_PC0_FUNC_OTG_HS_ULPI_STP 0x200b -#define STM32F429_PC0_FUNC_FMC_SDNWE 0x200d -#define STM32F429_PC0_FUNC_EVENTOUT 0x2010 -#define STM32F429_PC0_FUNC_ANALOG 0x2011 - -#define STM32F429_PC1_FUNC_GPIO 0x2100 -#define STM32F429_PC1_FUNC_ETH_MDC 0x210c -#define STM32F429_PC1_FUNC_EVENTOUT 0x2110 -#define STM32F429_PC1_FUNC_ANALOG 0x2111 - -#define STM32F429_PC2_FUNC_GPIO 0x2200 -#define STM32F429_PC2_FUNC_SPI2_MISO 0x2206 -#define STM32F429_PC2_FUNC_I2S2EXT_SD 0x2207 -#define STM32F429_PC2_FUNC_OTG_HS_ULPI_DIR 0x220b -#define STM32F429_PC2_FUNC_ETH_MII_TXD2 0x220c -#define STM32F429_PC2_FUNC_FMC_SDNE0 0x220d -#define STM32F429_PC2_FUNC_EVENTOUT 0x2210 -#define STM32F429_PC2_FUNC_ANALOG 0x2211 - -#define STM32F429_PC3_FUNC_GPIO 0x2300 -#define STM32F429_PC3_FUNC_SPI2_MOSI_I2S2_SD 0x2306 -#define STM32F429_PC3_FUNC_OTG_HS_ULPI_NXT 0x230b -#define STM32F429_PC3_FUNC_ETH_MII_TX_CLK 0x230c -#define STM32F429_PC3_FUNC_FMC_SDCKE0 0x230d -#define STM32F429_PC3_FUNC_EVENTOUT 0x2310 -#define STM32F429_PC3_FUNC_ANALOG 0x2311 - -#define STM32F429_PC4_FUNC_GPIO 0x2400 -#define STM32F429_PC4_FUNC_ETH_MII_RXD0_ETH_RMII_RXD0 0x240c -#define STM32F429_PC4_FUNC_EVENTOUT 0x2410 -#define STM32F429_PC4_FUNC_ANALOG 0x2411 - -#define STM32F429_PC5_FUNC_GPIO 0x2500 -#define STM32F429_PC5_FUNC_ETH_MII_RXD1_ETH_RMII_RXD1 0x250c -#define STM32F429_PC5_FUNC_EVENTOUT 0x2510 -#define STM32F429_PC5_FUNC_ANALOG 0x2511 - -#define STM32F429_PC6_FUNC_GPIO 0x2600 -#define STM32F429_PC6_FUNC_TIM3_CH1 0x2603 -#define STM32F429_PC6_FUNC_TIM8_CH1 0x2604 -#define STM32F429_PC6_FUNC_I2S2_MCK 0x2606 -#define STM32F429_PC6_FUNC_USART6_TX 0x2609 -#define STM32F429_PC6_FUNC_SDIO_D6 0x260d -#define STM32F429_PC6_FUNC_DCMI_D0 0x260e -#define STM32F429_PC6_FUNC_LCD_HSYNC 0x260f -#define STM32F429_PC6_FUNC_EVENTOUT 0x2610 -#define STM32F429_PC6_FUNC_ANALOG 0x2611 - -#define STM32F429_PC7_FUNC_GPIO 0x2700 -#define STM32F429_PC7_FUNC_TIM3_CH2 0x2703 -#define STM32F429_PC7_FUNC_TIM8_CH2 0x2704 -#define STM32F429_PC7_FUNC_I2S3_MCK 0x2707 -#define STM32F429_PC7_FUNC_USART6_RX 0x2709 -#define STM32F429_PC7_FUNC_SDIO_D7 0x270d -#define STM32F429_PC7_FUNC_DCMI_D1 0x270e -#define STM32F429_PC7_FUNC_LCD_G6 0x270f -#define STM32F429_PC7_FUNC_EVENTOUT 0x2710 -#define STM32F429_PC7_FUNC_ANALOG 0x2711 - -#define STM32F429_PC8_FUNC_GPIO 0x2800 -#define STM32F429_PC8_FUNC_TIM3_CH3 0x2803 -#define STM32F429_PC8_FUNC_TIM8_CH3 0x2804 -#define STM32F429_PC8_FUNC_USART6_CK 0x2809 -#define STM32F429_PC8_FUNC_SDIO_D0 0x280d -#define STM32F429_PC8_FUNC_DCMI_D2 0x280e -#define STM32F429_PC8_FUNC_EVENTOUT 0x2810 -#define STM32F429_PC8_FUNC_ANALOG 0x2811 - -#define STM32F429_PC9_FUNC_GPIO 0x2900 -#define STM32F429_PC9_FUNC_MCO2 0x2901 -#define STM32F429_PC9_FUNC_TIM3_CH4 0x2903 -#define STM32F429_PC9_FUNC_TIM8_CH4 0x2904 -#define STM32F429_PC9_FUNC_I2C3_SDA 0x2905 -#define STM32F429_PC9_FUNC_I2S_CKIN 0x2906 -#define STM32F429_PC9_FUNC_SDIO_D1 0x290d -#define STM32F429_PC9_FUNC_DCMI_D3 0x290e -#define STM32F429_PC9_FUNC_EVENTOUT 0x2910 -#define STM32F429_PC9_FUNC_ANALOG 0x2911 - -#define STM32F429_PC10_FUNC_GPIO 0x2a00 -#define STM32F429_PC10_FUNC_SPI3_SCK_I2S3_CK 0x2a07 -#define STM32F429_PC10_FUNC_USART3_TX 0x2a08 -#define STM32F429_PC10_FUNC_UART4_TX 0x2a09 -#define STM32F429_PC10_FUNC_SDIO_D2 0x2a0d -#define STM32F429_PC10_FUNC_DCMI_D8 0x2a0e -#define STM32F429_PC10_FUNC_LCD_R2 0x2a0f -#define STM32F429_PC10_FUNC_EVENTOUT 0x2a10 -#define STM32F429_PC10_FUNC_ANALOG 0x2a11 - -#define STM32F429_PC11_FUNC_GPIO 0x2b00 -#define STM32F429_PC11_FUNC_I2S3EXT_SD 0x2b06 -#define STM32F429_PC11_FUNC_SPI3_MISO 0x2b07 -#define STM32F429_PC11_FUNC_USART3_RX 0x2b08 -#define STM32F429_PC11_FUNC_UART4_RX 0x2b09 -#define STM32F429_PC11_FUNC_SDIO_D3 0x2b0d -#define STM32F429_PC11_FUNC_DCMI_D4 0x2b0e -#define STM32F429_PC11_FUNC_EVENTOUT 0x2b10 -#define STM32F429_PC11_FUNC_ANALOG 0x2b11 - -#define STM32F429_PC12_FUNC_GPIO 0x2c00 -#define STM32F429_PC12_FUNC_SPI3_MOSI_I2S3_SD 0x2c07 -#define STM32F429_PC12_FUNC_USART3_CK 0x2c08 -#define STM32F429_PC12_FUNC_UART5_TX 0x2c09 -#define STM32F429_PC12_FUNC_SDIO_CK 0x2c0d -#define STM32F429_PC12_FUNC_DCMI_D9 0x2c0e -#define STM32F429_PC12_FUNC_EVENTOUT 0x2c10 -#define STM32F429_PC12_FUNC_ANALOG 0x2c11 - -#define STM32F429_PC13_FUNC_GPIO 0x2d00 -#define STM32F429_PC13_FUNC_EVENTOUT 0x2d10 -#define STM32F429_PC13_FUNC_ANALOG 0x2d11 - -#define STM32F429_PC14_FUNC_GPIO 0x2e00 -#define STM32F429_PC14_FUNC_EVENTOUT 0x2e10 -#define STM32F429_PC14_FUNC_ANALOG 0x2e11 - -#define STM32F429_PC15_FUNC_GPIO 0x2f00 -#define STM32F429_PC15_FUNC_EVENTOUT 0x2f10 -#define STM32F429_PC15_FUNC_ANALOG 0x2f11 - - - -#define STM32F429_PD0_FUNC_GPIO 0x3000 -#define STM32F429_PD0_FUNC_CAN1_RX 0x300a -#define STM32F429_PD0_FUNC_FMC_D2 0x300d -#define STM32F429_PD0_FUNC_EVENTOUT 0x3010 -#define STM32F429_PD0_FUNC_ANALOG 0x3011 - -#define STM32F429_PD1_FUNC_GPIO 0x3100 -#define STM32F429_PD1_FUNC_CAN1_TX 0x310a -#define STM32F429_PD1_FUNC_FMC_D3 0x310d -#define STM32F429_PD1_FUNC_EVENTOUT 0x3110 -#define STM32F429_PD1_FUNC_ANALOG 0x3111 - -#define STM32F429_PD2_FUNC_GPIO 0x3200 -#define STM32F429_PD2_FUNC_TIM3_ETR 0x3203 -#define STM32F429_PD2_FUNC_UART5_RX 0x3209 -#define STM32F429_PD2_FUNC_SDIO_CMD 0x320d -#define STM32F429_PD2_FUNC_DCMI_D11 0x320e -#define STM32F429_PD2_FUNC_EVENTOUT 0x3210 -#define STM32F429_PD2_FUNC_ANALOG 0x3211 - -#define STM32F429_PD3_FUNC_GPIO 0x3300 -#define STM32F429_PD3_FUNC_SPI2_SCK_I2S2_CK 0x3306 -#define STM32F429_PD3_FUNC_USART2_CTS 0x3308 -#define STM32F429_PD3_FUNC_FMC_CLK 0x330d -#define STM32F429_PD3_FUNC_DCMI_D5 0x330e -#define STM32F429_PD3_FUNC_LCD_G7 0x330f -#define STM32F429_PD3_FUNC_EVENTOUT 0x3310 -#define STM32F429_PD3_FUNC_ANALOG 0x3311 - -#define STM32F429_PD4_FUNC_GPIO 0x3400 -#define STM32F429_PD4_FUNC_USART2_RTS 0x3408 -#define STM32F429_PD4_FUNC_FMC_NOE 0x340d -#define STM32F429_PD4_FUNC_EVENTOUT 0x3410 -#define STM32F429_PD4_FUNC_ANALOG 0x3411 - -#define STM32F429_PD5_FUNC_GPIO 0x3500 -#define STM32F429_PD5_FUNC_USART2_TX 0x3508 -#define STM32F429_PD5_FUNC_FMC_NWE 0x350d -#define STM32F429_PD5_FUNC_EVENTOUT 0x3510 -#define STM32F429_PD5_FUNC_ANALOG 0x3511 - -#define STM32F429_PD6_FUNC_GPIO 0x3600 -#define STM32F429_PD6_FUNC_SPI3_MOSI_I2S3_SD 0x3606 -#define STM32F429_PD6_FUNC_SAI1_SD_A 0x3607 -#define STM32F429_PD6_FUNC_USART2_RX 0x3608 -#define STM32F429_PD6_FUNC_FMC_NWAIT 0x360d -#define STM32F429_PD6_FUNC_DCMI_D10 0x360e -#define STM32F429_PD6_FUNC_LCD_B2 0x360f -#define STM32F429_PD6_FUNC_EVENTOUT 0x3610 -#define STM32F429_PD6_FUNC_ANALOG 0x3611 - -#define STM32F429_PD7_FUNC_GPIO 0x3700 -#define STM32F429_PD7_FUNC_USART2_CK 0x3708 -#define STM32F429_PD7_FUNC_FMC_NE1_FMC_NCE2 0x370d -#define STM32F429_PD7_FUNC_EVENTOUT 0x3710 -#define STM32F429_PD7_FUNC_ANALOG 0x3711 - -#define STM32F429_PD8_FUNC_GPIO 0x3800 -#define STM32F429_PD8_FUNC_USART3_TX 0x3808 -#define STM32F429_PD8_FUNC_FMC_D13 0x380d -#define STM32F429_PD8_FUNC_EVENTOUT 0x3810 -#define STM32F429_PD8_FUNC_ANALOG 0x3811 - -#define STM32F429_PD9_FUNC_GPIO 0x3900 -#define STM32F429_PD9_FUNC_USART3_RX 0x3908 -#define STM32F429_PD9_FUNC_FMC_D14 0x390d -#define STM32F429_PD9_FUNC_EVENTOUT 0x3910 -#define STM32F429_PD9_FUNC_ANALOG 0x3911 - -#define STM32F429_PD10_FUNC_GPIO 0x3a00 -#define STM32F429_PD10_FUNC_USART3_CK 0x3a08 -#define STM32F429_PD10_FUNC_FMC_D15 0x3a0d -#define STM32F429_PD10_FUNC_LCD_B3 0x3a0f -#define STM32F429_PD10_FUNC_EVENTOUT 0x3a10 -#define STM32F429_PD10_FUNC_ANALOG 0x3a11 - -#define STM32F429_PD11_FUNC_GPIO 0x3b00 -#define STM32F429_PD11_FUNC_USART3_CTS 0x3b08 -#define STM32F429_PD11_FUNC_FMC_A16 0x3b0d -#define STM32F429_PD11_FUNC_EVENTOUT 0x3b10 -#define STM32F429_PD11_FUNC_ANALOG 0x3b11 - -#define STM32F429_PD12_FUNC_GPIO 0x3c00 -#define STM32F429_PD12_FUNC_TIM4_CH1 0x3c03 -#define STM32F429_PD12_FUNC_USART3_RTS 0x3c08 -#define STM32F429_PD12_FUNC_FMC_A17 0x3c0d -#define STM32F429_PD12_FUNC_EVENTOUT 0x3c10 -#define STM32F429_PD12_FUNC_ANALOG 0x3c11 - -#define STM32F429_PD13_FUNC_GPIO 0x3d00 -#define STM32F429_PD13_FUNC_TIM4_CH2 0x3d03 -#define STM32F429_PD13_FUNC_FMC_A18 0x3d0d -#define STM32F429_PD13_FUNC_EVENTOUT 0x3d10 -#define STM32F429_PD13_FUNC_ANALOG 0x3d11 - -#define STM32F429_PD14_FUNC_GPIO 0x3e00 -#define STM32F429_PD14_FUNC_TIM4_CH3 0x3e03 -#define STM32F429_PD14_FUNC_FMC_D0 0x3e0d -#define STM32F429_PD14_FUNC_EVENTOUT 0x3e10 -#define STM32F429_PD14_FUNC_ANALOG 0x3e11 - -#define STM32F429_PD15_FUNC_GPIO 0x3f00 -#define STM32F429_PD15_FUNC_TIM4_CH4 0x3f03 -#define STM32F429_PD15_FUNC_FMC_D1 0x3f0d -#define STM32F429_PD15_FUNC_EVENTOUT 0x3f10 -#define STM32F429_PD15_FUNC_ANALOG 0x3f11 - - - -#define STM32F429_PE0_FUNC_GPIO 0x4000 -#define STM32F429_PE0_FUNC_TIM4_ETR 0x4003 -#define STM32F429_PE0_FUNC_UART8_RX 0x4009 -#define STM32F429_PE0_FUNC_FMC_NBL0 0x400d -#define STM32F429_PE0_FUNC_DCMI_D2 0x400e -#define STM32F429_PE0_FUNC_EVENTOUT 0x4010 -#define STM32F429_PE0_FUNC_ANALOG 0x4011 - -#define STM32F429_PE1_FUNC_GPIO 0x4100 -#define STM32F429_PE1_FUNC_UART8_TX 0x4109 -#define STM32F429_PE1_FUNC_FMC_NBL1 0x410d -#define STM32F429_PE1_FUNC_DCMI_D3 0x410e -#define STM32F429_PE1_FUNC_EVENTOUT 0x4110 -#define STM32F429_PE1_FUNC_ANALOG 0x4111 - -#define STM32F429_PE2_FUNC_GPIO 0x4200 -#define STM32F429_PE2_FUNC_TRACECLK 0x4201 -#define STM32F429_PE2_FUNC_SPI4_SCK 0x4206 -#define STM32F429_PE2_FUNC_SAI1_MCLK_A 0x4207 -#define STM32F429_PE2_FUNC_ETH_MII_TXD3 0x420c -#define STM32F429_PE2_FUNC_FMC_A23 0x420d -#define STM32F429_PE2_FUNC_EVENTOUT 0x4210 -#define STM32F429_PE2_FUNC_ANALOG 0x4211 - -#define STM32F429_PE3_FUNC_GPIO 0x4300 -#define STM32F429_PE3_FUNC_TRACED0 0x4301 -#define STM32F429_PE3_FUNC_SAI1_SD_B 0x4307 -#define STM32F429_PE3_FUNC_FMC_A19 0x430d -#define STM32F429_PE3_FUNC_EVENTOUT 0x4310 -#define STM32F429_PE3_FUNC_ANALOG 0x4311 - -#define STM32F429_PE4_FUNC_GPIO 0x4400 -#define STM32F429_PE4_FUNC_TRACED1 0x4401 -#define STM32F429_PE4_FUNC_SPI4_NSS 0x4406 -#define STM32F429_PE4_FUNC_SAI1_FS_A 0x4407 -#define STM32F429_PE4_FUNC_FMC_A20 0x440d -#define STM32F429_PE4_FUNC_DCMI_D4 0x440e -#define STM32F429_PE4_FUNC_LCD_B0 0x440f -#define STM32F429_PE4_FUNC_EVENTOUT 0x4410 -#define STM32F429_PE4_FUNC_ANALOG 0x4411 - -#define STM32F429_PE5_FUNC_GPIO 0x4500 -#define STM32F429_PE5_FUNC_TRACED2 0x4501 -#define STM32F429_PE5_FUNC_TIM9_CH1 0x4504 -#define STM32F429_PE5_FUNC_SPI4_MISO 0x4506 -#define STM32F429_PE5_FUNC_SAI1_SCK_A 0x4507 -#define STM32F429_PE5_FUNC_FMC_A21 0x450d -#define STM32F429_PE5_FUNC_DCMI_D6 0x450e -#define STM32F429_PE5_FUNC_LCD_G0 0x450f -#define STM32F429_PE5_FUNC_EVENTOUT 0x4510 -#define STM32F429_PE5_FUNC_ANALOG 0x4511 - -#define STM32F429_PE6_FUNC_GPIO 0x4600 -#define STM32F429_PE6_FUNC_TRACED3 0x4601 -#define STM32F429_PE6_FUNC_TIM9_CH2 0x4604 -#define STM32F429_PE6_FUNC_SPI4_MOSI 0x4606 -#define STM32F429_PE6_FUNC_SAI1_SD_A 0x4607 -#define STM32F429_PE6_FUNC_FMC_A22 0x460d -#define STM32F429_PE6_FUNC_DCMI_D7 0x460e -#define STM32F429_PE6_FUNC_LCD_G1 0x460f -#define STM32F429_PE6_FUNC_EVENTOUT 0x4610 -#define STM32F429_PE6_FUNC_ANALOG 0x4611 - -#define STM32F429_PE7_FUNC_GPIO 0x4700 -#define STM32F429_PE7_FUNC_TIM1_ETR 0x4702 -#define STM32F429_PE7_FUNC_UART7_RX 0x4709 -#define STM32F429_PE7_FUNC_FMC_D4 0x470d -#define STM32F429_PE7_FUNC_EVENTOUT 0x4710 -#define STM32F429_PE7_FUNC_ANALOG 0x4711 - -#define STM32F429_PE8_FUNC_GPIO 0x4800 -#define STM32F429_PE8_FUNC_TIM1_CH1N 0x4802 -#define STM32F429_PE8_FUNC_UART7_TX 0x4809 -#define STM32F429_PE8_FUNC_FMC_D5 0x480d -#define STM32F429_PE8_FUNC_EVENTOUT 0x4810 -#define STM32F429_PE8_FUNC_ANALOG 0x4811 - -#define STM32F429_PE9_FUNC_GPIO 0x4900 -#define STM32F429_PE9_FUNC_TIM1_CH1 0x4902 -#define STM32F429_PE9_FUNC_FMC_D6 0x490d -#define STM32F429_PE9_FUNC_EVENTOUT 0x4910 -#define STM32F429_PE9_FUNC_ANALOG 0x4911 - -#define STM32F429_PE10_FUNC_GPIO 0x4a00 -#define STM32F429_PE10_FUNC_TIM1_CH2N 0x4a02 -#define STM32F429_PE10_FUNC_FMC_D7 0x4a0d -#define STM32F429_PE10_FUNC_EVENTOUT 0x4a10 -#define STM32F429_PE10_FUNC_ANALOG 0x4a11 - -#define STM32F429_PE11_FUNC_GPIO 0x4b00 -#define STM32F429_PE11_FUNC_TIM1_CH2 0x4b02 -#define STM32F429_PE11_FUNC_SPI4_NSS 0x4b06 -#define STM32F429_PE11_FUNC_FMC_D8 0x4b0d -#define STM32F429_PE11_FUNC_LCD_G3 0x4b0f -#define STM32F429_PE11_FUNC_EVENTOUT 0x4b10 -#define STM32F429_PE11_FUNC_ANALOG 0x4b11 - -#define STM32F429_PE12_FUNC_GPIO 0x4c00 -#define STM32F429_PE12_FUNC_TIM1_CH3N 0x4c02 -#define STM32F429_PE12_FUNC_SPI4_SCK 0x4c06 -#define STM32F429_PE12_FUNC_FMC_D9 0x4c0d -#define STM32F429_PE12_FUNC_LCD_B4 0x4c0f -#define STM32F429_PE12_FUNC_EVENTOUT 0x4c10 -#define STM32F429_PE12_FUNC_ANALOG 0x4c11 - -#define STM32F429_PE13_FUNC_GPIO 0x4d00 -#define STM32F429_PE13_FUNC_TIM1_CH3 0x4d02 -#define STM32F429_PE13_FUNC_SPI4_MISO 0x4d06 -#define STM32F429_PE13_FUNC_FMC_D10 0x4d0d -#define STM32F429_PE13_FUNC_LCD_DE 0x4d0f -#define STM32F429_PE13_FUNC_EVENTOUT 0x4d10 -#define STM32F429_PE13_FUNC_ANALOG 0x4d11 - -#define STM32F429_PE14_FUNC_GPIO 0x4e00 -#define STM32F429_PE14_FUNC_TIM1_CH4 0x4e02 -#define STM32F429_PE14_FUNC_SPI4_MOSI 0x4e06 -#define STM32F429_PE14_FUNC_FMC_D11 0x4e0d -#define STM32F429_PE14_FUNC_LCD_CLK 0x4e0f -#define STM32F429_PE14_FUNC_EVENTOUT 0x4e10 -#define STM32F429_PE14_FUNC_ANALOG 0x4e11 - -#define STM32F429_PE15_FUNC_GPIO 0x4f00 -#define STM32F429_PE15_FUNC_TIM1_BKIN 0x4f02 -#define STM32F429_PE15_FUNC_FMC_D12 0x4f0d -#define STM32F429_PE15_FUNC_LCD_R7 0x4f0f -#define STM32F429_PE15_FUNC_EVENTOUT 0x4f10 -#define STM32F429_PE15_FUNC_ANALOG 0x4f11 - - - -#define STM32F429_PF0_FUNC_GPIO 0x5000 -#define STM32F429_PF0_FUNC_I2C2_SDA 0x5005 -#define STM32F429_PF0_FUNC_FMC_A0 0x500d -#define STM32F429_PF0_FUNC_EVENTOUT 0x5010 -#define STM32F429_PF0_FUNC_ANALOG 0x5011 - -#define STM32F429_PF1_FUNC_GPIO 0x5100 -#define STM32F429_PF1_FUNC_I2C2_SCL 0x5105 -#define STM32F429_PF1_FUNC_FMC_A1 0x510d -#define STM32F429_PF1_FUNC_EVENTOUT 0x5110 -#define STM32F429_PF1_FUNC_ANALOG 0x5111 - -#define STM32F429_PF2_FUNC_GPIO 0x5200 -#define STM32F429_PF2_FUNC_I2C2_SMBA 0x5205 -#define STM32F429_PF2_FUNC_FMC_A2 0x520d -#define STM32F429_PF2_FUNC_EVENTOUT 0x5210 -#define STM32F429_PF2_FUNC_ANALOG 0x5211 - -#define STM32F429_PF3_FUNC_GPIO 0x5300 -#define STM32F429_PF3_FUNC_FMC_A3 0x530d -#define STM32F429_PF3_FUNC_EVENTOUT 0x5310 -#define STM32F429_PF3_FUNC_ANALOG 0x5311 - -#define STM32F429_PF4_FUNC_GPIO 0x5400 -#define STM32F429_PF4_FUNC_FMC_A4 0x540d -#define STM32F429_PF4_FUNC_EVENTOUT 0x5410 -#define STM32F429_PF4_FUNC_ANALOG 0x5411 - -#define STM32F429_PF5_FUNC_GPIO 0x5500 -#define STM32F429_PF5_FUNC_FMC_A5 0x550d -#define STM32F429_PF5_FUNC_EVENTOUT 0x5510 -#define STM32F429_PF5_FUNC_ANALOG 0x5511 - -#define STM32F429_PF6_FUNC_GPIO 0x5600 -#define STM32F429_PF6_FUNC_TIM10_CH1 0x5604 -#define STM32F429_PF6_FUNC_SPI5_NSS 0x5606 -#define STM32F429_PF6_FUNC_SAI1_SD_B 0x5607 -#define STM32F429_PF6_FUNC_UART7_RX 0x5609 -#define STM32F429_PF6_FUNC_FMC_NIORD 0x560d -#define STM32F429_PF6_FUNC_EVENTOUT 0x5610 -#define STM32F429_PF6_FUNC_ANALOG 0x5611 - -#define STM32F429_PF7_FUNC_GPIO 0x5700 -#define STM32F429_PF7_FUNC_TIM11_CH1 0x5704 -#define STM32F429_PF7_FUNC_SPI5_SCK 0x5706 -#define STM32F429_PF7_FUNC_SAI1_MCLK_B 0x5707 -#define STM32F429_PF7_FUNC_UART7_TX 0x5709 -#define STM32F429_PF7_FUNC_FMC_NREG 0x570d -#define STM32F429_PF7_FUNC_EVENTOUT 0x5710 -#define STM32F429_PF7_FUNC_ANALOG 0x5711 - -#define STM32F429_PF8_FUNC_GPIO 0x5800 -#define STM32F429_PF8_FUNC_SPI5_MISO 0x5806 -#define STM32F429_PF8_FUNC_SAI1_SCK_B 0x5807 -#define STM32F429_PF8_FUNC_TIM13_CH1 0x580a -#define STM32F429_PF8_FUNC_FMC_NIOWR 0x580d -#define STM32F429_PF8_FUNC_EVENTOUT 0x5810 -#define STM32F429_PF8_FUNC_ANALOG 0x5811 - -#define STM32F429_PF9_FUNC_GPIO 0x5900 -#define STM32F429_PF9_FUNC_SPI5_MOSI 0x5906 -#define STM32F429_PF9_FUNC_SAI1_FS_B 0x5907 -#define STM32F429_PF9_FUNC_TIM14_CH1 0x590a -#define STM32F429_PF9_FUNC_FMC_CD 0x590d -#define STM32F429_PF9_FUNC_EVENTOUT 0x5910 -#define STM32F429_PF9_FUNC_ANALOG 0x5911 - -#define STM32F429_PF10_FUNC_GPIO 0x5a00 -#define STM32F429_PF10_FUNC_FMC_INTR 0x5a0d -#define STM32F429_PF10_FUNC_DCMI_D11 0x5a0e -#define STM32F429_PF10_FUNC_LCD_DE 0x5a0f -#define STM32F429_PF10_FUNC_EVENTOUT 0x5a10 -#define STM32F429_PF10_FUNC_ANALOG 0x5a11 - -#define STM32F429_PF11_FUNC_GPIO 0x5b00 -#define STM32F429_PF11_FUNC_SPI5_MOSI 0x5b06 -#define STM32F429_PF11_FUNC_FMC_SDNRAS 0x5b0d -#define STM32F429_PF11_FUNC_DCMI_D12 0x5b0e -#define STM32F429_PF11_FUNC_EVENTOUT 0x5b10 -#define STM32F429_PF11_FUNC_ANALOG 0x5b11 - -#define STM32F429_PF12_FUNC_GPIO 0x5c00 -#define STM32F429_PF12_FUNC_FMC_A6 0x5c0d -#define STM32F429_PF12_FUNC_EVENTOUT 0x5c10 -#define STM32F429_PF12_FUNC_ANALOG 0x5c11 - -#define STM32F429_PF13_FUNC_GPIO 0x5d00 -#define STM32F429_PF13_FUNC_FMC_A7 0x5d0d -#define STM32F429_PF13_FUNC_EVENTOUT 0x5d10 -#define STM32F429_PF13_FUNC_ANALOG 0x5d11 - -#define STM32F429_PF14_FUNC_GPIO 0x5e00 -#define STM32F429_PF14_FUNC_FMC_A8 0x5e0d -#define STM32F429_PF14_FUNC_EVENTOUT 0x5e10 -#define STM32F429_PF14_FUNC_ANALOG 0x5e11 - -#define STM32F429_PF15_FUNC_GPIO 0x5f00 -#define STM32F429_PF15_FUNC_FMC_A9 0x5f0d -#define STM32F429_PF15_FUNC_EVENTOUT 0x5f10 -#define STM32F429_PF15_FUNC_ANALOG 0x5f11 - - - -#define STM32F429_PG0_FUNC_GPIO 0x6000 -#define STM32F429_PG0_FUNC_FMC_A10 0x600d -#define STM32F429_PG0_FUNC_EVENTOUT 0x6010 -#define STM32F429_PG0_FUNC_ANALOG 0x6011 - -#define STM32F429_PG1_FUNC_GPIO 0x6100 -#define STM32F429_PG1_FUNC_FMC_A11 0x610d -#define STM32F429_PG1_FUNC_EVENTOUT 0x6110 -#define STM32F429_PG1_FUNC_ANALOG 0x6111 - -#define STM32F429_PG2_FUNC_GPIO 0x6200 -#define STM32F429_PG2_FUNC_FMC_A12 0x620d -#define STM32F429_PG2_FUNC_EVENTOUT 0x6210 -#define STM32F429_PG2_FUNC_ANALOG 0x6211 - -#define STM32F429_PG3_FUNC_GPIO 0x6300 -#define STM32F429_PG3_FUNC_FMC_A13 0x630d -#define STM32F429_PG3_FUNC_EVENTOUT 0x6310 -#define STM32F429_PG3_FUNC_ANALOG 0x6311 - -#define STM32F429_PG4_FUNC_GPIO 0x6400 -#define STM32F429_PG4_FUNC_FMC_A14_FMC_BA0 0x640d -#define STM32F429_PG4_FUNC_EVENTOUT 0x6410 -#define STM32F429_PG4_FUNC_ANALOG 0x6411 - -#define STM32F429_PG5_FUNC_GPIO 0x6500 -#define STM32F429_PG5_FUNC_FMC_A15_FMC_BA1 0x650d -#define STM32F429_PG5_FUNC_EVENTOUT 0x6510 -#define STM32F429_PG5_FUNC_ANALOG 0x6511 - -#define STM32F429_PG6_FUNC_GPIO 0x6600 -#define STM32F429_PG6_FUNC_FMC_INT2 0x660d -#define STM32F429_PG6_FUNC_DCMI_D12 0x660e -#define STM32F429_PG6_FUNC_LCD_R7 0x660f -#define STM32F429_PG6_FUNC_EVENTOUT 0x6610 -#define STM32F429_PG6_FUNC_ANALOG 0x6611 - -#define STM32F429_PG7_FUNC_GPIO 0x6700 -#define STM32F429_PG7_FUNC_USART6_CK 0x6709 -#define STM32F429_PG7_FUNC_FMC_INT3 0x670d -#define STM32F429_PG7_FUNC_DCMI_D13 0x670e -#define STM32F429_PG7_FUNC_LCD_CLK 0x670f -#define STM32F429_PG7_FUNC_EVENTOUT 0x6710 -#define STM32F429_PG7_FUNC_ANALOG 0x6711 - -#define STM32F429_PG8_FUNC_GPIO 0x6800 -#define STM32F429_PG8_FUNC_SPI6_NSS 0x6806 -#define STM32F429_PG8_FUNC_USART6_RTS 0x6809 -#define STM32F429_PG8_FUNC_ETH_PPS_OUT 0x680c -#define STM32F429_PG8_FUNC_FMC_SDCLK 0x680d -#define STM32F429_PG8_FUNC_EVENTOUT 0x6810 -#define STM32F429_PG8_FUNC_ANALOG 0x6811 - -#define STM32F429_PG9_FUNC_GPIO 0x6900 -#define STM32F429_PG9_FUNC_USART6_RX 0x6909 -#define STM32F429_PG9_FUNC_FMC_NE2_FMC_NCE3 0x690d -#define STM32F429_PG9_FUNC_DCMI_VSYNC 0x690e -#define STM32F429_PG9_FUNC_EVENTOUT 0x6910 -#define STM32F429_PG9_FUNC_ANALOG 0x6911 - -#define STM32F429_PG10_FUNC_GPIO 0x6a00 -#define STM32F429_PG10_FUNC_LCD_G3 0x6a0a -#define STM32F429_PG10_FUNC_FMC_NCE4_1_FMC_NE3 0x6a0d -#define STM32F429_PG10_FUNC_DCMI_D2 0x6a0e -#define STM32F429_PG10_FUNC_LCD_B2 0x6a0f -#define STM32F429_PG10_FUNC_EVENTOUT 0x6a10 -#define STM32F429_PG10_FUNC_ANALOG 0x6a11 - -#define STM32F429_PG11_FUNC_GPIO 0x6b00 -#define STM32F429_PG11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN 0x6b0c -#define STM32F429_PG11_FUNC_FMC_NCE4_2 0x6b0d -#define STM32F429_PG11_FUNC_DCMI_D3 0x6b0e -#define STM32F429_PG11_FUNC_LCD_B3 0x6b0f -#define STM32F429_PG11_FUNC_EVENTOUT 0x6b10 -#define STM32F429_PG11_FUNC_ANALOG 0x6b11 - -#define STM32F429_PG12_FUNC_GPIO 0x6c00 -#define STM32F429_PG12_FUNC_SPI6_MISO 0x6c06 -#define STM32F429_PG12_FUNC_USART6_RTS 0x6c09 -#define STM32F429_PG12_FUNC_LCD_B4 0x6c0a -#define STM32F429_PG12_FUNC_FMC_NE4 0x6c0d -#define STM32F429_PG12_FUNC_LCD_B1 0x6c0f -#define STM32F429_PG12_FUNC_EVENTOUT 0x6c10 -#define STM32F429_PG12_FUNC_ANALOG 0x6c11 - -#define STM32F429_PG13_FUNC_GPIO 0x6d00 -#define STM32F429_PG13_FUNC_SPI6_SCK 0x6d06 -#define STM32F429_PG13_FUNC_USART6_CTS 0x6d09 -#define STM32F429_PG13_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0 0x6d0c -#define STM32F429_PG13_FUNC_FMC_A24 0x6d0d -#define STM32F429_PG13_FUNC_EVENTOUT 0x6d10 -#define STM32F429_PG13_FUNC_ANALOG 0x6d11 - -#define STM32F429_PG14_FUNC_GPIO 0x6e00 -#define STM32F429_PG14_FUNC_SPI6_MOSI 0x6e06 -#define STM32F429_PG14_FUNC_USART6_TX 0x6e09 -#define STM32F429_PG14_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1 0x6e0c -#define STM32F429_PG14_FUNC_FMC_A25 0x6e0d -#define STM32F429_PG14_FUNC_EVENTOUT 0x6e10 -#define STM32F429_PG14_FUNC_ANALOG 0x6e11 - -#define STM32F429_PG15_FUNC_GPIO 0x6f00 -#define STM32F429_PG15_FUNC_USART6_CTS 0x6f09 -#define STM32F429_PG15_FUNC_FMC_SDNCAS 0x6f0d -#define STM32F429_PG15_FUNC_DCMI_D13 0x6f0e -#define STM32F429_PG15_FUNC_EVENTOUT 0x6f10 -#define STM32F429_PG15_FUNC_ANALOG 0x6f11 - - - -#define STM32F429_PH0_FUNC_GPIO 0x7000 -#define STM32F429_PH0_FUNC_EVENTOUT 0x7010 -#define STM32F429_PH0_FUNC_ANALOG 0x7011 - -#define STM32F429_PH1_FUNC_GPIO 0x7100 -#define STM32F429_PH1_FUNC_EVENTOUT 0x7110 -#define STM32F429_PH1_FUNC_ANALOG 0x7111 - -#define STM32F429_PH2_FUNC_GPIO 0x7200 -#define STM32F429_PH2_FUNC_ETH_MII_CRS 0x720c -#define STM32F429_PH2_FUNC_FMC_SDCKE0 0x720d -#define STM32F429_PH2_FUNC_LCD_R0 0x720f -#define STM32F429_PH2_FUNC_EVENTOUT 0x7210 -#define STM32F429_PH2_FUNC_ANALOG 0x7211 - -#define STM32F429_PH3_FUNC_GPIO 0x7300 -#define STM32F429_PH3_FUNC_ETH_MII_COL 0x730c -#define STM32F429_PH3_FUNC_FMC_SDNE0 0x730d -#define STM32F429_PH3_FUNC_LCD_R1 0x730f -#define STM32F429_PH3_FUNC_EVENTOUT 0x7310 -#define STM32F429_PH3_FUNC_ANALOG 0x7311 - -#define STM32F429_PH4_FUNC_GPIO 0x7400 -#define STM32F429_PH4_FUNC_I2C2_SCL 0x7405 -#define STM32F429_PH4_FUNC_OTG_HS_ULPI_NXT 0x740b -#define STM32F429_PH4_FUNC_EVENTOUT 0x7410 -#define STM32F429_PH4_FUNC_ANALOG 0x7411 - -#define STM32F429_PH5_FUNC_GPIO 0x7500 -#define STM32F429_PH5_FUNC_I2C2_SDA 0x7505 -#define STM32F429_PH5_FUNC_SPI5_NSS 0x7506 -#define STM32F429_PH5_FUNC_FMC_SDNWE 0x750d -#define STM32F429_PH5_FUNC_EVENTOUT 0x7510 -#define STM32F429_PH5_FUNC_ANALOG 0x7511 - -#define STM32F429_PH6_FUNC_GPIO 0x7600 -#define STM32F429_PH6_FUNC_I2C2_SMBA 0x7605 -#define STM32F429_PH6_FUNC_SPI5_SCK 0x7606 -#define STM32F429_PH6_FUNC_TIM12_CH1 0x760a -#define STM32F429_PH6_FUNC_ETH_MII_RXD2 0x760c -#define STM32F429_PH6_FUNC_FMC_SDNE1 0x760d -#define STM32F429_PH6_FUNC_DCMI_D8 0x760e -#define STM32F429_PH6_FUNC_EVENTOUT 0x7610 -#define STM32F429_PH6_FUNC_ANALOG 0x7611 - -#define STM32F429_PH7_FUNC_GPIO 0x7700 -#define STM32F429_PH7_FUNC_I2C3_SCL 0x7705 -#define STM32F429_PH7_FUNC_SPI5_MISO 0x7706 -#define STM32F429_PH7_FUNC_ETH_MII_RXD3 0x770c -#define STM32F429_PH7_FUNC_FMC_SDCKE1 0x770d -#define STM32F429_PH7_FUNC_DCMI_D9 0x770e -#define STM32F429_PH7_FUNC_EVENTOUT 0x7710 -#define STM32F429_PH7_FUNC_ANALOG 0x7711 - -#define STM32F429_PH8_FUNC_GPIO 0x7800 -#define STM32F429_PH8_FUNC_I2C3_SDA 0x7805 -#define STM32F429_PH8_FUNC_FMC_D16 0x780d -#define STM32F429_PH8_FUNC_DCMI_HSYNC 0x780e -#define STM32F429_PH8_FUNC_LCD_R2 0x780f -#define STM32F429_PH8_FUNC_EVENTOUT 0x7810 -#define STM32F429_PH8_FUNC_ANALOG 0x7811 - -#define STM32F429_PH9_FUNC_GPIO 0x7900 -#define STM32F429_PH9_FUNC_I2C3_SMBA 0x7905 -#define STM32F429_PH9_FUNC_TIM12_CH2 0x790a -#define STM32F429_PH9_FUNC_FMC_D17 0x790d -#define STM32F429_PH9_FUNC_DCMI_D0 0x790e -#define STM32F429_PH9_FUNC_LCD_R3 0x790f -#define STM32F429_PH9_FUNC_EVENTOUT 0x7910 -#define STM32F429_PH9_FUNC_ANALOG 0x7911 - -#define STM32F429_PH10_FUNC_GPIO 0x7a00 -#define STM32F429_PH10_FUNC_TIM5_CH1 0x7a03 -#define STM32F429_PH10_FUNC_FMC_D18 0x7a0d -#define STM32F429_PH10_FUNC_DCMI_D1 0x7a0e -#define STM32F429_PH10_FUNC_LCD_R4 0x7a0f -#define STM32F429_PH10_FUNC_EVENTOUT 0x7a10 -#define STM32F429_PH10_FUNC_ANALOG 0x7a11 - -#define STM32F429_PH11_FUNC_GPIO 0x7b00 -#define STM32F429_PH11_FUNC_TIM5_CH2 0x7b03 -#define STM32F429_PH11_FUNC_FMC_D19 0x7b0d -#define STM32F429_PH11_FUNC_DCMI_D2 0x7b0e -#define STM32F429_PH11_FUNC_LCD_R5 0x7b0f -#define STM32F429_PH11_FUNC_EVENTOUT 0x7b10 -#define STM32F429_PH11_FUNC_ANALOG 0x7b11 - -#define STM32F429_PH12_FUNC_GPIO 0x7c00 -#define STM32F429_PH12_FUNC_TIM5_CH3 0x7c03 -#define STM32F429_PH12_FUNC_FMC_D20 0x7c0d -#define STM32F429_PH12_FUNC_DCMI_D3 0x7c0e -#define STM32F429_PH12_FUNC_LCD_R6 0x7c0f -#define STM32F429_PH12_FUNC_EVENTOUT 0x7c10 -#define STM32F429_PH12_FUNC_ANALOG 0x7c11 - -#define STM32F429_PH13_FUNC_GPIO 0x7d00 -#define STM32F429_PH13_FUNC_TIM8_CH1N 0x7d04 -#define STM32F429_PH13_FUNC_CAN1_TX 0x7d0a -#define STM32F429_PH13_FUNC_FMC_D21 0x7d0d -#define STM32F429_PH13_FUNC_LCD_G2 0x7d0f -#define STM32F429_PH13_FUNC_EVENTOUT 0x7d10 -#define STM32F429_PH13_FUNC_ANALOG 0x7d11 - -#define STM32F429_PH14_FUNC_GPIO 0x7e00 -#define STM32F429_PH14_FUNC_TIM8_CH2N 0x7e04 -#define STM32F429_PH14_FUNC_FMC_D22 0x7e0d -#define STM32F429_PH14_FUNC_DCMI_D4 0x7e0e -#define STM32F429_PH14_FUNC_LCD_G3 0x7e0f -#define STM32F429_PH14_FUNC_EVENTOUT 0x7e10 -#define STM32F429_PH14_FUNC_ANALOG 0x7e11 - -#define STM32F429_PH15_FUNC_GPIO 0x7f00 -#define STM32F429_PH15_FUNC_TIM8_CH3N 0x7f04 -#define STM32F429_PH15_FUNC_FMC_D23 0x7f0d -#define STM32F429_PH15_FUNC_DCMI_D11 0x7f0e -#define STM32F429_PH15_FUNC_LCD_G4 0x7f0f -#define STM32F429_PH15_FUNC_EVENTOUT 0x7f10 -#define STM32F429_PH15_FUNC_ANALOG 0x7f11 - - - -#define STM32F429_PI0_FUNC_GPIO 0x8000 -#define STM32F429_PI0_FUNC_TIM5_CH4 0x8003 -#define STM32F429_PI0_FUNC_SPI2_NSS_I2S2_WS 0x8006 -#define STM32F429_PI0_FUNC_FMC_D24 0x800d -#define STM32F429_PI0_FUNC_DCMI_D13 0x800e -#define STM32F429_PI0_FUNC_LCD_G5 0x800f -#define STM32F429_PI0_FUNC_EVENTOUT 0x8010 -#define STM32F429_PI0_FUNC_ANALOG 0x8011 - -#define STM32F429_PI1_FUNC_GPIO 0x8100 -#define STM32F429_PI1_FUNC_SPI2_SCK_I2S2_CK 0x8106 -#define STM32F429_PI1_FUNC_FMC_D25 0x810d -#define STM32F429_PI1_FUNC_DCMI_D8 0x810e -#define STM32F429_PI1_FUNC_LCD_G6 0x810f -#define STM32F429_PI1_FUNC_EVENTOUT 0x8110 -#define STM32F429_PI1_FUNC_ANALOG 0x8111 - -#define STM32F429_PI2_FUNC_GPIO 0x8200 -#define STM32F429_PI2_FUNC_TIM8_CH4 0x8204 -#define STM32F429_PI2_FUNC_SPI2_MISO 0x8206 -#define STM32F429_PI2_FUNC_I2S2EXT_SD 0x8207 -#define STM32F429_PI2_FUNC_FMC_D26 0x820d -#define STM32F429_PI2_FUNC_DCMI_D9 0x820e -#define STM32F429_PI2_FUNC_LCD_G7 0x820f -#define STM32F429_PI2_FUNC_EVENTOUT 0x8210 -#define STM32F429_PI2_FUNC_ANALOG 0x8211 - -#define STM32F429_PI3_FUNC_GPIO 0x8300 -#define STM32F429_PI3_FUNC_TIM8_ETR 0x8304 -#define STM32F429_PI3_FUNC_SPI2_MOSI_I2S2_SD 0x8306 -#define STM32F429_PI3_FUNC_FMC_D27 0x830d -#define STM32F429_PI3_FUNC_DCMI_D10 0x830e -#define STM32F429_PI3_FUNC_EVENTOUT 0x8310 -#define STM32F429_PI3_FUNC_ANALOG 0x8311 - -#define STM32F429_PI4_FUNC_GPIO 0x8400 -#define STM32F429_PI4_FUNC_TIM8_BKIN 0x8404 -#define STM32F429_PI4_FUNC_FMC_NBL2 0x840d -#define STM32F429_PI4_FUNC_DCMI_D5 0x840e -#define STM32F429_PI4_FUNC_LCD_B4 0x840f -#define STM32F429_PI4_FUNC_EVENTOUT 0x8410 -#define STM32F429_PI4_FUNC_ANALOG 0x8411 - -#define STM32F429_PI5_FUNC_GPIO 0x8500 -#define STM32F429_PI5_FUNC_TIM8_CH1 0x8504 -#define STM32F429_PI5_FUNC_FMC_NBL3 0x850d -#define STM32F429_PI5_FUNC_DCMI_VSYNC 0x850e -#define STM32F429_PI5_FUNC_LCD_B5 0x850f -#define STM32F429_PI5_FUNC_EVENTOUT 0x8510 -#define STM32F429_PI5_FUNC_ANALOG 0x8511 - -#define STM32F429_PI6_FUNC_GPIO 0x8600 -#define STM32F429_PI6_FUNC_TIM8_CH2 0x8604 -#define STM32F429_PI6_FUNC_FMC_D28 0x860d -#define STM32F429_PI6_FUNC_DCMI_D6 0x860e -#define STM32F429_PI6_FUNC_LCD_B6 0x860f -#define STM32F429_PI6_FUNC_EVENTOUT 0x8610 -#define STM32F429_PI6_FUNC_ANALOG 0x8611 - -#define STM32F429_PI7_FUNC_GPIO 0x8700 -#define STM32F429_PI7_FUNC_TIM8_CH3 0x8704 -#define STM32F429_PI7_FUNC_FMC_D29 0x870d -#define STM32F429_PI7_FUNC_DCMI_D7 0x870e -#define STM32F429_PI7_FUNC_LCD_B7 0x870f -#define STM32F429_PI7_FUNC_EVENTOUT 0x8710 -#define STM32F429_PI7_FUNC_ANALOG 0x8711 - -#define STM32F429_PI8_FUNC_GPIO 0x8800 -#define STM32F429_PI8_FUNC_EVENTOUT 0x8810 -#define STM32F429_PI8_FUNC_ANALOG 0x8811 - -#define STM32F429_PI9_FUNC_GPIO 0x8900 -#define STM32F429_PI9_FUNC_CAN1_RX 0x890a -#define STM32F429_PI9_FUNC_FMC_D30 0x890d -#define STM32F429_PI9_FUNC_LCD_VSYNC 0x890f -#define STM32F429_PI9_FUNC_EVENTOUT 0x8910 -#define STM32F429_PI9_FUNC_ANALOG 0x8911 - -#define STM32F429_PI10_FUNC_GPIO 0x8a00 -#define STM32F429_PI10_FUNC_ETH_MII_RX_ER 0x8a0c -#define STM32F429_PI10_FUNC_FMC_D31 0x8a0d -#define STM32F429_PI10_FUNC_LCD_HSYNC 0x8a0f -#define STM32F429_PI10_FUNC_EVENTOUT 0x8a10 -#define STM32F429_PI10_FUNC_ANALOG 0x8a11 - -#define STM32F429_PI11_FUNC_GPIO 0x8b00 -#define STM32F429_PI11_FUNC_OTG_HS_ULPI_DIR 0x8b0b -#define STM32F429_PI11_FUNC_EVENTOUT 0x8b10 -#define STM32F429_PI11_FUNC_ANALOG 0x8b11 - -#define STM32F429_PI12_FUNC_GPIO 0x8c00 -#define STM32F429_PI12_FUNC_LCD_HSYNC 0x8c0f -#define STM32F429_PI12_FUNC_EVENTOUT 0x8c10 -#define STM32F429_PI12_FUNC_ANALOG 0x8c11 - -#define STM32F429_PI13_FUNC_GPIO 0x8d00 -#define STM32F429_PI13_FUNC_LCD_VSYNC 0x8d0f -#define STM32F429_PI13_FUNC_EVENTOUT 0x8d10 -#define STM32F429_PI13_FUNC_ANALOG 0x8d11 - -#define STM32F429_PI14_FUNC_GPIO 0x8e00 -#define STM32F429_PI14_FUNC_LCD_CLK 0x8e0f -#define STM32F429_PI14_FUNC_EVENTOUT 0x8e10 -#define STM32F429_PI14_FUNC_ANALOG 0x8e11 - -#define STM32F429_PI15_FUNC_GPIO 0x8f00 -#define STM32F429_PI15_FUNC_LCD_R0 0x8f0f -#define STM32F429_PI15_FUNC_EVENTOUT 0x8f10 -#define STM32F429_PI15_FUNC_ANALOG 0x8f11 - - - -#define STM32F429_PJ0_FUNC_GPIO 0x9000 -#define STM32F429_PJ0_FUNC_LCD_R1 0x900f -#define STM32F429_PJ0_FUNC_EVENTOUT 0x9010 -#define STM32F429_PJ0_FUNC_ANALOG 0x9011 - -#define STM32F429_PJ1_FUNC_GPIO 0x9100 -#define STM32F429_PJ1_FUNC_LCD_R2 0x910f -#define STM32F429_PJ1_FUNC_EVENTOUT 0x9110 -#define STM32F429_PJ1_FUNC_ANALOG 0x9111 - -#define STM32F429_PJ2_FUNC_GPIO 0x9200 -#define STM32F429_PJ2_FUNC_LCD_R3 0x920f -#define STM32F429_PJ2_FUNC_EVENTOUT 0x9210 -#define STM32F429_PJ2_FUNC_ANALOG 0x9211 - -#define STM32F429_PJ3_FUNC_GPIO 0x9300 -#define STM32F429_PJ3_FUNC_LCD_R4 0x930f -#define STM32F429_PJ3_FUNC_EVENTOUT 0x9310 -#define STM32F429_PJ3_FUNC_ANALOG 0x9311 - -#define STM32F429_PJ4_FUNC_GPIO 0x9400 -#define STM32F429_PJ4_FUNC_LCD_R5 0x940f -#define STM32F429_PJ4_FUNC_EVENTOUT 0x9410 -#define STM32F429_PJ4_FUNC_ANALOG 0x9411 - -#define STM32F429_PJ5_FUNC_GPIO 0x9500 -#define STM32F429_PJ5_FUNC_LCD_R6 0x950f -#define STM32F429_PJ5_FUNC_EVENTOUT 0x9510 -#define STM32F429_PJ5_FUNC_ANALOG 0x9511 - -#define STM32F429_PJ6_FUNC_GPIO 0x9600 -#define STM32F429_PJ6_FUNC_LCD_R7 0x960f -#define STM32F429_PJ6_FUNC_EVENTOUT 0x9610 -#define STM32F429_PJ6_FUNC_ANALOG 0x9611 - -#define STM32F429_PJ7_FUNC_GPIO 0x9700 -#define STM32F429_PJ7_FUNC_LCD_G0 0x970f -#define STM32F429_PJ7_FUNC_EVENTOUT 0x9710 -#define STM32F429_PJ7_FUNC_ANALOG 0x9711 - -#define STM32F429_PJ8_FUNC_GPIO 0x9800 -#define STM32F429_PJ8_FUNC_LCD_G1 0x980f -#define STM32F429_PJ8_FUNC_EVENTOUT 0x9810 -#define STM32F429_PJ8_FUNC_ANALOG 0x9811 - -#define STM32F429_PJ9_FUNC_GPIO 0x9900 -#define STM32F429_PJ9_FUNC_LCD_G2 0x990f -#define STM32F429_PJ9_FUNC_EVENTOUT 0x9910 -#define STM32F429_PJ9_FUNC_ANALOG 0x9911 - -#define STM32F429_PJ10_FUNC_GPIO 0x9a00 -#define STM32F429_PJ10_FUNC_LCD_G3 0x9a0f -#define STM32F429_PJ10_FUNC_EVENTOUT 0x9a10 -#define STM32F429_PJ10_FUNC_ANALOG 0x9a11 - -#define STM32F429_PJ11_FUNC_GPIO 0x9b00 -#define STM32F429_PJ11_FUNC_LCD_G4 0x9b0f -#define STM32F429_PJ11_FUNC_EVENTOUT 0x9b10 -#define STM32F429_PJ11_FUNC_ANALOG 0x9b11 - -#define STM32F429_PJ12_FUNC_GPIO 0x9c00 -#define STM32F429_PJ12_FUNC_LCD_B0 0x9c0f -#define STM32F429_PJ12_FUNC_EVENTOUT 0x9c10 -#define STM32F429_PJ12_FUNC_ANALOG 0x9c11 - -#define STM32F429_PJ13_FUNC_GPIO 0x9d00 -#define STM32F429_PJ13_FUNC_LCD_B1 0x9d0f -#define STM32F429_PJ13_FUNC_EVENTOUT 0x9d10 -#define STM32F429_PJ13_FUNC_ANALOG 0x9d11 - -#define STM32F429_PJ14_FUNC_GPIO 0x9e00 -#define STM32F429_PJ14_FUNC_LCD_B2 0x9e0f -#define STM32F429_PJ14_FUNC_EVENTOUT 0x9e10 -#define STM32F429_PJ14_FUNC_ANALOG 0x9e11 - -#define STM32F429_PJ15_FUNC_GPIO 0x9f00 -#define STM32F429_PJ15_FUNC_LCD_B3 0x9f0f -#define STM32F429_PJ15_FUNC_EVENTOUT 0x9f10 -#define STM32F429_PJ15_FUNC_ANALOG 0x9f11 - - - -#define STM32F429_PK0_FUNC_GPIO 0xa000 -#define STM32F429_PK0_FUNC_LCD_G5 0xa00f -#define STM32F429_PK0_FUNC_EVENTOUT 0xa010 -#define STM32F429_PK0_FUNC_ANALOG 0xa011 - -#define STM32F429_PK1_FUNC_GPIO 0xa100 -#define STM32F429_PK1_FUNC_LCD_G6 0xa10f -#define STM32F429_PK1_FUNC_EVENTOUT 0xa110 -#define STM32F429_PK1_FUNC_ANALOG 0xa111 - -#define STM32F429_PK2_FUNC_GPIO 0xa200 -#define STM32F429_PK2_FUNC_LCD_G7 0xa20f -#define STM32F429_PK2_FUNC_EVENTOUT 0xa210 -#define STM32F429_PK2_FUNC_ANALOG 0xa211 - -#define STM32F429_PK3_FUNC_GPIO 0xa300 -#define STM32F429_PK3_FUNC_LCD_B4 0xa30f -#define STM32F429_PK3_FUNC_EVENTOUT 0xa310 -#define STM32F429_PK3_FUNC_ANALOG 0xa311 - -#define STM32F429_PK4_FUNC_GPIO 0xa400 -#define STM32F429_PK4_FUNC_LCD_B5 0xa40f -#define STM32F429_PK4_FUNC_EVENTOUT 0xa410 -#define STM32F429_PK4_FUNC_ANALOG 0xa411 - -#define STM32F429_PK5_FUNC_GPIO 0xa500 -#define STM32F429_PK5_FUNC_LCD_B6 0xa50f -#define STM32F429_PK5_FUNC_EVENTOUT 0xa510 -#define STM32F429_PK5_FUNC_ANALOG 0xa511 - -#define STM32F429_PK6_FUNC_GPIO 0xa600 -#define STM32F429_PK6_FUNC_LCD_B7 0xa60f -#define STM32F429_PK6_FUNC_EVENTOUT 0xa610 -#define STM32F429_PK6_FUNC_ANALOG 0xa611 - -#define STM32F429_PK7_FUNC_GPIO 0xa700 -#define STM32F429_PK7_FUNC_LCD_DE 0xa70f -#define STM32F429_PK7_FUNC_EVENTOUT 0xa710 -#define STM32F429_PK7_FUNC_ANALOG 0xa711 - -#endif /* _DT_BINDINGS_STM32F429_PINFUNC_H */ diff --git a/include/dt-bindings/pinctrl/stm32f746-pinfunc.h b/include/dt-bindings/pinctrl/stm32f746-pinfunc.h deleted file mode 100644 index 6348c6a830e9..000000000000 --- a/include/dt-bindings/pinctrl/stm32f746-pinfunc.h +++ /dev/null @@ -1,1324 +0,0 @@ -#ifndef _DT_BINDINGS_STM32F746_PINFUNC_H -#define _DT_BINDINGS_STM32F746_PINFUNC_H - -#define STM32F746_PA0_FUNC_GPIO 0x0 -#define STM32F746_PA0_FUNC_TIM2_CH1_TIM2_ETR 0x2 -#define STM32F746_PA0_FUNC_TIM5_CH1 0x3 -#define STM32F746_PA0_FUNC_TIM8_ETR 0x4 -#define STM32F746_PA0_FUNC_USART2_CTS 0x8 -#define STM32F746_PA0_FUNC_UART4_TX 0x9 -#define STM32F746_PA0_FUNC_SAI2_SD_B 0xb -#define STM32F746_PA0_FUNC_ETH_MII_CRS 0xc -#define STM32F746_PA0_FUNC_EVENTOUT 0x10 -#define STM32F746_PA0_FUNC_ANALOG 0x11 - -#define STM32F746_PA1_FUNC_GPIO 0x100 -#define STM32F746_PA1_FUNC_TIM2_CH2 0x102 -#define STM32F746_PA1_FUNC_TIM5_CH2 0x103 -#define STM32F746_PA1_FUNC_USART2_RTS 0x108 -#define STM32F746_PA1_FUNC_UART4_RX 0x109 -#define STM32F746_PA1_FUNC_QUADSPI_BK1_IO3 0x10a -#define STM32F746_PA1_FUNC_SAI2_MCLK_B 0x10b -#define STM32F746_PA1_FUNC_ETH_MII_RX_CLK_ETH_RMII_REF_CLK 0x10c -#define STM32F746_PA1_FUNC_LCD_R2 0x10f -#define STM32F746_PA1_FUNC_EVENTOUT 0x110 -#define STM32F746_PA1_FUNC_ANALOG 0x111 - -#define STM32F746_PA2_FUNC_GPIO 0x200 -#define STM32F746_PA2_FUNC_TIM2_CH3 0x202 -#define STM32F746_PA2_FUNC_TIM5_CH3 0x203 -#define STM32F746_PA2_FUNC_TIM9_CH1 0x204 -#define STM32F746_PA2_FUNC_USART2_TX 0x208 -#define STM32F746_PA2_FUNC_SAI2_SCK_B 0x209 -#define STM32F746_PA2_FUNC_ETH_MDIO 0x20c -#define STM32F746_PA2_FUNC_LCD_R1 0x20f -#define STM32F746_PA2_FUNC_EVENTOUT 0x210 -#define STM32F746_PA2_FUNC_ANALOG 0x211 - -#define STM32F746_PA3_FUNC_GPIO 0x300 -#define STM32F746_PA3_FUNC_TIM2_CH4 0x302 -#define STM32F746_PA3_FUNC_TIM5_CH4 0x303 -#define STM32F746_PA3_FUNC_TIM9_CH2 0x304 -#define STM32F746_PA3_FUNC_USART2_RX 0x308 -#define STM32F746_PA3_FUNC_OTG_HS_ULPI_D0 0x30b -#define STM32F746_PA3_FUNC_ETH_MII_COL 0x30c -#define STM32F746_PA3_FUNC_LCD_B5 0x30f -#define STM32F746_PA3_FUNC_EVENTOUT 0x310 -#define STM32F746_PA3_FUNC_ANALOG 0x311 - -#define STM32F746_PA4_FUNC_GPIO 0x400 -#define STM32F746_PA4_FUNC_SPI1_NSS_I2S1_WS 0x406 -#define STM32F746_PA4_FUNC_SPI3_NSS_I2S3_WS 0x407 -#define STM32F746_PA4_FUNC_USART2_CK 0x408 -#define STM32F746_PA4_FUNC_OTG_HS_SOF 0x40d -#define STM32F746_PA4_FUNC_DCMI_HSYNC 0x40e -#define STM32F746_PA4_FUNC_LCD_VSYNC 0x40f -#define STM32F746_PA4_FUNC_EVENTOUT 0x410 -#define STM32F746_PA4_FUNC_ANALOG 0x411 - -#define STM32F746_PA5_FUNC_GPIO 0x500 -#define STM32F746_PA5_FUNC_TIM2_CH1_TIM2_ETR 0x502 -#define STM32F746_PA5_FUNC_TIM8_CH1N 0x504 -#define STM32F746_PA5_FUNC_SPI1_SCK_I2S1_CK 0x506 -#define STM32F746_PA5_FUNC_OTG_HS_ULPI_CK 0x50b -#define STM32F746_PA5_FUNC_LCD_R4 0x50f -#define STM32F746_PA5_FUNC_EVENTOUT 0x510 -#define STM32F746_PA5_FUNC_ANALOG 0x511 - -#define STM32F746_PA6_FUNC_GPIO 0x600 -#define STM32F746_PA6_FUNC_TIM1_BKIN 0x602 -#define STM32F746_PA6_FUNC_TIM3_CH1 0x603 -#define STM32F746_PA6_FUNC_TIM8_BKIN 0x604 -#define STM32F746_PA6_FUNC_SPI1_MISO 0x606 -#define STM32F746_PA6_FUNC_TIM13_CH1 0x60a -#define STM32F746_PA6_FUNC_DCMI_PIXCLK 0x60e -#define STM32F746_PA6_FUNC_LCD_G2 0x60f -#define STM32F746_PA6_FUNC_EVENTOUT 0x610 -#define STM32F746_PA6_FUNC_ANALOG 0x611 - -#define STM32F746_PA7_FUNC_GPIO 0x700 -#define STM32F746_PA7_FUNC_TIM1_CH1N 0x702 -#define STM32F746_PA7_FUNC_TIM3_CH2 0x703 -#define STM32F746_PA7_FUNC_TIM8_CH1N 0x704 -#define STM32F746_PA7_FUNC_SPI1_MOSI_I2S1_SD 0x706 -#define STM32F746_PA7_FUNC_TIM14_CH1 0x70a -#define STM32F746_PA7_FUNC_ETH_MII_RX_DV_ETH_RMII_CRS_DV 0x70c -#define STM32F746_PA7_FUNC_FMC_SDNWE 0x70d -#define STM32F746_PA7_FUNC_EVENTOUT 0x710 -#define STM32F746_PA7_FUNC_ANALOG 0x711 - -#define STM32F746_PA8_FUNC_GPIO 0x800 -#define STM32F746_PA8_FUNC_MCO1 0x801 -#define STM32F746_PA8_FUNC_TIM1_CH1 0x802 -#define STM32F746_PA8_FUNC_TIM8_BKIN2 0x804 -#define STM32F746_PA8_FUNC_I2C3_SCL 0x805 -#define STM32F746_PA8_FUNC_USART1_CK 0x808 -#define STM32F746_PA8_FUNC_OTG_FS_SOF 0x80b -#define STM32F746_PA8_FUNC_LCD_R6 0x80f -#define STM32F746_PA8_FUNC_EVENTOUT 0x810 -#define STM32F746_PA8_FUNC_ANALOG 0x811 - -#define STM32F746_PA9_FUNC_GPIO 0x900 -#define STM32F746_PA9_FUNC_TIM1_CH2 0x902 -#define STM32F746_PA9_FUNC_I2C3_SMBA 0x905 -#define STM32F746_PA9_FUNC_SPI2_SCK_I2S2_CK 0x906 -#define STM32F746_PA9_FUNC_USART1_TX 0x908 -#define STM32F746_PA9_FUNC_DCMI_D0 0x90e -#define STM32F746_PA9_FUNC_EVENTOUT 0x910 -#define STM32F746_PA9_FUNC_ANALOG 0x911 - -#define STM32F746_PA10_FUNC_GPIO 0xa00 -#define STM32F746_PA10_FUNC_TIM1_CH3 0xa02 -#define STM32F746_PA10_FUNC_USART1_RX 0xa08 -#define STM32F746_PA10_FUNC_OTG_FS_ID 0xa0b -#define STM32F746_PA10_FUNC_DCMI_D1 0xa0e -#define STM32F746_PA10_FUNC_EVENTOUT 0xa10 -#define STM32F746_PA10_FUNC_ANALOG 0xa11 - -#define STM32F746_PA11_FUNC_GPIO 0xb00 -#define STM32F746_PA11_FUNC_TIM1_CH4 0xb02 -#define STM32F746_PA11_FUNC_USART1_CTS 0xb08 -#define STM32F746_PA11_FUNC_CAN1_RX 0xb0a -#define STM32F746_PA11_FUNC_OTG_FS_DM 0xb0b -#define STM32F746_PA11_FUNC_LCD_R4 0xb0f -#define STM32F746_PA11_FUNC_EVENTOUT 0xb10 -#define STM32F746_PA11_FUNC_ANALOG 0xb11 - -#define STM32F746_PA12_FUNC_GPIO 0xc00 -#define STM32F746_PA12_FUNC_TIM1_ETR 0xc02 -#define STM32F746_PA12_FUNC_USART1_RTS 0xc08 -#define STM32F746_PA12_FUNC_SAI2_FS_B 0xc09 -#define STM32F746_PA12_FUNC_CAN1_TX 0xc0a -#define STM32F746_PA12_FUNC_OTG_FS_DP 0xc0b -#define STM32F746_PA12_FUNC_LCD_R5 0xc0f -#define STM32F746_PA12_FUNC_EVENTOUT 0xc10 -#define STM32F746_PA12_FUNC_ANALOG 0xc11 - -#define STM32F746_PA13_FUNC_GPIO 0xd00 -#define STM32F746_PA13_FUNC_JTMS_SWDIO 0xd01 -#define STM32F746_PA13_FUNC_EVENTOUT 0xd10 -#define STM32F746_PA13_FUNC_ANALOG 0xd11 - -#define STM32F746_PA14_FUNC_GPIO 0xe00 -#define STM32F746_PA14_FUNC_JTCK_SWCLK 0xe01 -#define STM32F746_PA14_FUNC_EVENTOUT 0xe10 -#define STM32F746_PA14_FUNC_ANALOG 0xe11 - -#define STM32F746_PA15_FUNC_GPIO 0xf00 -#define STM32F746_PA15_FUNC_JTDI 0xf01 -#define STM32F746_PA15_FUNC_TIM2_CH1_TIM2_ETR 0xf02 -#define STM32F746_PA15_FUNC_HDMI_CEC 0xf05 -#define STM32F746_PA15_FUNC_SPI1_NSS_I2S1_WS 0xf06 -#define STM32F746_PA15_FUNC_SPI3_NSS_I2S3_WS 0xf07 -#define STM32F746_PA15_FUNC_UART4_RTS 0xf09 -#define STM32F746_PA15_FUNC_EVENTOUT 0xf10 -#define STM32F746_PA15_FUNC_ANALOG 0xf11 - - -#define STM32F746_PB0_FUNC_GPIO 0x1000 -#define STM32F746_PB0_FUNC_TIM1_CH2N 0x1002 -#define STM32F746_PB0_FUNC_TIM3_CH3 0x1003 -#define STM32F746_PB0_FUNC_TIM8_CH2N 0x1004 -#define STM32F746_PB0_FUNC_UART4_CTS 0x1009 -#define STM32F746_PB0_FUNC_LCD_R3 0x100a -#define STM32F746_PB0_FUNC_OTG_HS_ULPI_D1 0x100b -#define STM32F746_PB0_FUNC_ETH_MII_RXD2 0x100c -#define STM32F746_PB0_FUNC_EVENTOUT 0x1010 -#define STM32F746_PB0_FUNC_ANALOG 0x1011 - -#define STM32F746_PB1_FUNC_GPIO 0x1100 -#define STM32F746_PB1_FUNC_TIM1_CH3N 0x1102 -#define STM32F746_PB1_FUNC_TIM3_CH4 0x1103 -#define STM32F746_PB1_FUNC_TIM8_CH3N 0x1104 -#define STM32F746_PB1_FUNC_LCD_R6 0x110a -#define STM32F746_PB1_FUNC_OTG_HS_ULPI_D2 0x110b -#define STM32F746_PB1_FUNC_ETH_MII_RXD3 0x110c -#define STM32F746_PB1_FUNC_EVENTOUT 0x1110 -#define STM32F746_PB1_FUNC_ANALOG 0x1111 - -#define STM32F746_PB2_FUNC_GPIO 0x1200 -#define STM32F746_PB2_FUNC_SAI1_SD_A 0x1207 -#define STM32F746_PB2_FUNC_SPI3_MOSI_I2S3_SD 0x1208 -#define STM32F746_PB2_FUNC_QUADSPI_CLK 0x120a -#define STM32F746_PB2_FUNC_EVENTOUT 0x1210 -#define STM32F746_PB2_FUNC_ANALOG 0x1211 - -#define STM32F746_PB3_FUNC_GPIO 0x1300 -#define STM32F746_PB3_FUNC_JTDO_TRACESWO 0x1301 -#define STM32F746_PB3_FUNC_TIM2_CH2 0x1302 -#define STM32F746_PB3_FUNC_SPI1_SCK_I2S1_CK 0x1306 -#define STM32F746_PB3_FUNC_SPI3_SCK_I2S3_CK 0x1307 -#define STM32F746_PB3_FUNC_EVENTOUT 0x1310 -#define STM32F746_PB3_FUNC_ANALOG 0x1311 - -#define STM32F746_PB4_FUNC_GPIO 0x1400 -#define STM32F746_PB4_FUNC_NJTRST 0x1401 -#define STM32F746_PB4_FUNC_TIM3_CH1 0x1403 -#define STM32F746_PB4_FUNC_SPI1_MISO 0x1406 -#define STM32F746_PB4_FUNC_SPI3_MISO 0x1407 -#define STM32F746_PB4_FUNC_SPI2_NSS_I2S2_WS 0x1408 -#define STM32F746_PB4_FUNC_EVENTOUT 0x1410 -#define STM32F746_PB4_FUNC_ANALOG 0x1411 - -#define STM32F746_PB5_FUNC_GPIO 0x1500 -#define STM32F746_PB5_FUNC_TIM3_CH2 0x1503 -#define STM32F746_PB5_FUNC_I2C1_SMBA 0x1505 -#define STM32F746_PB5_FUNC_SPI1_MOSI_I2S1_SD 0x1506 -#define STM32F746_PB5_FUNC_SPI3_MOSI_I2S3_SD 0x1507 -#define STM32F746_PB5_FUNC_CAN2_RX 0x150a -#define STM32F746_PB5_FUNC_OTG_HS_ULPI_D7 0x150b -#define STM32F746_PB5_FUNC_ETH_PPS_OUT 0x150c -#define STM32F746_PB5_FUNC_FMC_SDCKE1 0x150d -#define STM32F746_PB5_FUNC_DCMI_D10 0x150e -#define STM32F746_PB5_FUNC_EVENTOUT 0x1510 -#define STM32F746_PB5_FUNC_ANALOG 0x1511 - -#define STM32F746_PB6_FUNC_GPIO 0x1600 -#define STM32F746_PB6_FUNC_TIM4_CH1 0x1603 -#define STM32F746_PB6_FUNC_HDMI_CEC 0x1604 -#define STM32F746_PB6_FUNC_I2C1_SCL 0x1605 -#define STM32F746_PB6_FUNC_USART1_TX 0x1608 -#define STM32F746_PB6_FUNC_CAN2_TX 0x160a -#define STM32F746_PB6_FUNC_QUADSPI_BK1_NCS 0x160b -#define STM32F746_PB6_FUNC_FMC_SDNE1 0x160d -#define STM32F746_PB6_FUNC_DCMI_D5 0x160e -#define STM32F746_PB6_FUNC_EVENTOUT 0x1610 -#define STM32F746_PB6_FUNC_ANALOG 0x1611 - -#define STM32F746_PB7_FUNC_GPIO 0x1700 -#define STM32F746_PB7_FUNC_TIM4_CH2 0x1703 -#define STM32F746_PB7_FUNC_I2C1_SDA 0x1705 -#define STM32F746_PB7_FUNC_USART1_RX 0x1708 -#define STM32F746_PB7_FUNC_FMC_NL 0x170d -#define STM32F746_PB7_FUNC_DCMI_VSYNC 0x170e -#define STM32F746_PB7_FUNC_EVENTOUT 0x1710 -#define STM32F746_PB7_FUNC_ANALOG 0x1711 - -#define STM32F746_PB8_FUNC_GPIO 0x1800 -#define STM32F746_PB8_FUNC_TIM4_CH3 0x1803 -#define STM32F746_PB8_FUNC_TIM10_CH1 0x1804 -#define STM32F746_PB8_FUNC_I2C1_SCL 0x1805 -#define STM32F746_PB8_FUNC_CAN1_RX 0x180a -#define STM32F746_PB8_FUNC_ETH_MII_TXD3 0x180c -#define STM32F746_PB8_FUNC_SDMMC1_D4 0x180d -#define STM32F746_PB8_FUNC_DCMI_D6 0x180e -#define STM32F746_PB8_FUNC_LCD_B6 0x180f -#define STM32F746_PB8_FUNC_EVENTOUT 0x1810 -#define STM32F746_PB8_FUNC_ANALOG 0x1811 - -#define STM32F746_PB9_FUNC_GPIO 0x1900 -#define STM32F746_PB9_FUNC_TIM4_CH4 0x1903 -#define STM32F746_PB9_FUNC_TIM11_CH1 0x1904 -#define STM32F746_PB9_FUNC_I2C1_SDA 0x1905 -#define STM32F746_PB9_FUNC_SPI2_NSS_I2S2_WS 0x1906 -#define STM32F746_PB9_FUNC_CAN1_TX 0x190a -#define STM32F746_PB9_FUNC_SDMMC1_D5 0x190d -#define STM32F746_PB9_FUNC_DCMI_D7 0x190e -#define STM32F746_PB9_FUNC_LCD_B7 0x190f -#define STM32F746_PB9_FUNC_EVENTOUT 0x1910 -#define STM32F746_PB9_FUNC_ANALOG 0x1911 - -#define STM32F746_PB10_FUNC_GPIO 0x1a00 -#define STM32F746_PB10_FUNC_TIM2_CH3 0x1a02 -#define STM32F746_PB10_FUNC_I2C2_SCL 0x1a05 -#define STM32F746_PB10_FUNC_SPI2_SCK_I2S2_CK 0x1a06 -#define STM32F746_PB10_FUNC_USART3_TX 0x1a08 -#define STM32F746_PB10_FUNC_OTG_HS_ULPI_D3 0x1a0b -#define STM32F746_PB10_FUNC_ETH_MII_RX_ER 0x1a0c -#define STM32F746_PB10_FUNC_LCD_G4 0x1a0f -#define STM32F746_PB10_FUNC_EVENTOUT 0x1a10 -#define STM32F746_PB10_FUNC_ANALOG 0x1a11 - -#define STM32F746_PB11_FUNC_GPIO 0x1b00 -#define STM32F746_PB11_FUNC_TIM2_CH4 0x1b02 -#define STM32F746_PB11_FUNC_I2C2_SDA 0x1b05 -#define STM32F746_PB11_FUNC_USART3_RX 0x1b08 -#define STM32F746_PB11_FUNC_OTG_HS_ULPI_D4 0x1b0b -#define STM32F746_PB11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN 0x1b0c -#define STM32F746_PB11_FUNC_LCD_G5 0x1b0f -#define STM32F746_PB11_FUNC_EVENTOUT 0x1b10 -#define STM32F746_PB11_FUNC_ANALOG 0x1b11 - -#define STM32F746_PB12_FUNC_GPIO 0x1c00 -#define STM32F746_PB12_FUNC_TIM1_BKIN 0x1c02 -#define STM32F746_PB12_FUNC_I2C2_SMBA 0x1c05 -#define STM32F746_PB12_FUNC_SPI2_NSS_I2S2_WS 0x1c06 -#define STM32F746_PB12_FUNC_USART3_CK 0x1c08 -#define STM32F746_PB12_FUNC_CAN2_RX 0x1c0a -#define STM32F746_PB12_FUNC_OTG_HS_ULPI_D5 0x1c0b -#define STM32F746_PB12_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0 0x1c0c -#define STM32F746_PB12_FUNC_OTG_HS_ID 0x1c0d -#define STM32F746_PB12_FUNC_EVENTOUT 0x1c10 -#define STM32F746_PB12_FUNC_ANALOG 0x1c11 - -#define STM32F746_PB13_FUNC_GPIO 0x1d00 -#define STM32F746_PB13_FUNC_TIM1_CH1N 0x1d02 -#define STM32F746_PB13_FUNC_SPI2_SCK_I2S2_CK 0x1d06 -#define STM32F746_PB13_FUNC_USART3_CTS 0x1d08 -#define STM32F746_PB13_FUNC_CAN2_TX 0x1d0a -#define STM32F746_PB13_FUNC_OTG_HS_ULPI_D6 0x1d0b -#define STM32F746_PB13_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1 0x1d0c -#define STM32F746_PB13_FUNC_EVENTOUT 0x1d10 -#define STM32F746_PB13_FUNC_ANALOG 0x1d11 - -#define STM32F746_PB14_FUNC_GPIO 0x1e00 -#define STM32F746_PB14_FUNC_TIM1_CH2N 0x1e02 -#define STM32F746_PB14_FUNC_TIM8_CH2N 0x1e04 -#define STM32F746_PB14_FUNC_SPI2_MISO 0x1e06 -#define STM32F746_PB14_FUNC_USART3_RTS 0x1e08 -#define STM32F746_PB14_FUNC_TIM12_CH1 0x1e0a -#define STM32F746_PB14_FUNC_OTG_HS_DM 0x1e0d -#define STM32F746_PB14_FUNC_EVENTOUT 0x1e10 -#define STM32F746_PB14_FUNC_ANALOG 0x1e11 - -#define STM32F746_PB15_FUNC_GPIO 0x1f00 -#define STM32F746_PB15_FUNC_RTC_REFIN 0x1f01 -#define STM32F746_PB15_FUNC_TIM1_CH3N 0x1f02 -#define STM32F746_PB15_FUNC_TIM8_CH3N 0x1f04 -#define STM32F746_PB15_FUNC_SPI2_MOSI_I2S2_SD 0x1f06 -#define STM32F746_PB15_FUNC_TIM12_CH2 0x1f0a -#define STM32F746_PB15_FUNC_OTG_HS_DP 0x1f0d -#define STM32F746_PB15_FUNC_EVENTOUT 0x1f10 -#define STM32F746_PB15_FUNC_ANALOG 0x1f11 - - -#define STM32F746_PC0_FUNC_GPIO 0x2000 -#define STM32F746_PC0_FUNC_SAI2_FS_B 0x2009 -#define STM32F746_PC0_FUNC_OTG_HS_ULPI_STP 0x200b -#define STM32F746_PC0_FUNC_FMC_SDNWE 0x200d -#define STM32F746_PC0_FUNC_LCD_R5 0x200f -#define STM32F746_PC0_FUNC_EVENTOUT 0x2010 -#define STM32F746_PC0_FUNC_ANALOG 0x2011 - -#define STM32F746_PC1_FUNC_GPIO 0x2100 -#define STM32F746_PC1_FUNC_TRACED0 0x2101 -#define STM32F746_PC1_FUNC_SPI2_MOSI_I2S2_SD 0x2106 -#define STM32F746_PC1_FUNC_SAI1_SD_A 0x2107 -#define STM32F746_PC1_FUNC_ETH_MDC 0x210c -#define STM32F746_PC1_FUNC_EVENTOUT 0x2110 -#define STM32F746_PC1_FUNC_ANALOG 0x2111 - -#define STM32F746_PC2_FUNC_GPIO 0x2200 -#define STM32F746_PC2_FUNC_SPI2_MISO 0x2206 -#define STM32F746_PC2_FUNC_OTG_HS_ULPI_DIR 0x220b -#define STM32F746_PC2_FUNC_ETH_MII_TXD2 0x220c -#define STM32F746_PC2_FUNC_FMC_SDNE0 0x220d -#define STM32F746_PC2_FUNC_EVENTOUT 0x2210 -#define STM32F746_PC2_FUNC_ANALOG 0x2211 - -#define STM32F746_PC3_FUNC_GPIO 0x2300 -#define STM32F746_PC3_FUNC_SPI2_MOSI_I2S2_SD 0x2306 -#define STM32F746_PC3_FUNC_OTG_HS_ULPI_NXT 0x230b -#define STM32F746_PC3_FUNC_ETH_MII_TX_CLK 0x230c -#define STM32F746_PC3_FUNC_FMC_SDCKE0 0x230d -#define STM32F746_PC3_FUNC_EVENTOUT 0x2310 -#define STM32F746_PC3_FUNC_ANALOG 0x2311 - -#define STM32F746_PC4_FUNC_GPIO 0x2400 -#define STM32F746_PC4_FUNC_I2S1_MCK 0x2406 -#define STM32F746_PC4_FUNC_SPDIFRX_IN2 0x2409 -#define STM32F746_PC4_FUNC_ETH_MII_RXD0_ETH_RMII_RXD0 0x240c -#define STM32F746_PC4_FUNC_FMC_SDNE0 0x240d -#define STM32F746_PC4_FUNC_EVENTOUT 0x2410 -#define STM32F746_PC4_FUNC_ANALOG 0x2411 - -#define STM32F746_PC5_FUNC_GPIO 0x2500 -#define STM32F746_PC5_FUNC_SPDIFRX_IN3 0x2509 -#define STM32F746_PC5_FUNC_ETH_MII_RXD1_ETH_RMII_RXD1 0x250c -#define STM32F746_PC5_FUNC_FMC_SDCKE0 0x250d -#define STM32F746_PC5_FUNC_EVENTOUT 0x2510 -#define STM32F746_PC5_FUNC_ANALOG 0x2511 - -#define STM32F746_PC6_FUNC_GPIO 0x2600 -#define STM32F746_PC6_FUNC_TIM3_CH1 0x2603 -#define STM32F746_PC6_FUNC_TIM8_CH1 0x2604 -#define STM32F746_PC6_FUNC_I2S2_MCK 0x2606 -#define STM32F746_PC6_FUNC_USART6_TX 0x2609 -#define STM32F746_PC6_FUNC_SDMMC1_D6 0x260d -#define STM32F746_PC6_FUNC_DCMI_D0 0x260e -#define STM32F746_PC6_FUNC_LCD_HSYNC 0x260f -#define STM32F746_PC6_FUNC_EVENTOUT 0x2610 -#define STM32F746_PC6_FUNC_ANALOG 0x2611 - -#define STM32F746_PC7_FUNC_GPIO 0x2700 -#define STM32F746_PC7_FUNC_TIM3_CH2 0x2703 -#define STM32F746_PC7_FUNC_TIM8_CH2 0x2704 -#define STM32F746_PC7_FUNC_I2S3_MCK 0x2707 -#define STM32F746_PC7_FUNC_USART6_RX 0x2709 -#define STM32F746_PC7_FUNC_SDMMC1_D7 0x270d -#define STM32F746_PC7_FUNC_DCMI_D1 0x270e -#define STM32F746_PC7_FUNC_LCD_G6 0x270f -#define STM32F746_PC7_FUNC_EVENTOUT 0x2710 -#define STM32F746_PC7_FUNC_ANALOG 0x2711 - -#define STM32F746_PC8_FUNC_GPIO 0x2800 -#define STM32F746_PC8_FUNC_TRACED1 0x2801 -#define STM32F746_PC8_FUNC_TIM3_CH3 0x2803 -#define STM32F746_PC8_FUNC_TIM8_CH3 0x2804 -#define STM32F746_PC8_FUNC_UART5_RTS 0x2808 -#define STM32F746_PC8_FUNC_USART6_CK 0x2809 -#define STM32F746_PC8_FUNC_SDMMC1_D0 0x280d -#define STM32F746_PC8_FUNC_DCMI_D2 0x280e -#define STM32F746_PC8_FUNC_EVENTOUT 0x2810 -#define STM32F746_PC8_FUNC_ANALOG 0x2811 - -#define STM32F746_PC9_FUNC_GPIO 0x2900 -#define STM32F746_PC9_FUNC_MCO2 0x2901 -#define STM32F746_PC9_FUNC_TIM3_CH4 0x2903 -#define STM32F746_PC9_FUNC_TIM8_CH4 0x2904 -#define STM32F746_PC9_FUNC_I2C3_SDA 0x2905 -#define STM32F746_PC9_FUNC_I2S_CKIN 0x2906 -#define STM32F746_PC9_FUNC_UART5_CTS 0x2908 -#define STM32F746_PC9_FUNC_QUADSPI_BK1_IO0 0x290a -#define STM32F746_PC9_FUNC_SDMMC1_D1 0x290d -#define STM32F746_PC9_FUNC_DCMI_D3 0x290e -#define STM32F746_PC9_FUNC_EVENTOUT 0x2910 -#define STM32F746_PC9_FUNC_ANALOG 0x2911 - -#define STM32F746_PC10_FUNC_GPIO 0x2a00 -#define STM32F746_PC10_FUNC_SPI3_SCK_I2S3_CK 0x2a07 -#define STM32F746_PC10_FUNC_USART3_TX 0x2a08 -#define STM32F746_PC10_FUNC_UART4_TX 0x2a09 -#define STM32F746_PC10_FUNC_QUADSPI_BK1_IO1 0x2a0a -#define STM32F746_PC10_FUNC_SDMMC1_D2 0x2a0d -#define STM32F746_PC10_FUNC_DCMI_D8 0x2a0e -#define STM32F746_PC10_FUNC_LCD_R2 0x2a0f -#define STM32F746_PC10_FUNC_EVENTOUT 0x2a10 -#define STM32F746_PC10_FUNC_ANALOG 0x2a11 - -#define STM32F746_PC11_FUNC_GPIO 0x2b00 -#define STM32F746_PC11_FUNC_SPI3_MISO 0x2b07 -#define STM32F746_PC11_FUNC_USART3_RX 0x2b08 -#define STM32F746_PC11_FUNC_UART4_RX 0x2b09 -#define STM32F746_PC11_FUNC_QUADSPI_BK2_NCS 0x2b0a -#define STM32F746_PC11_FUNC_SDMMC1_D3 0x2b0d -#define STM32F746_PC11_FUNC_DCMI_D4 0x2b0e -#define STM32F746_PC11_FUNC_EVENTOUT 0x2b10 -#define STM32F746_PC11_FUNC_ANALOG 0x2b11 - -#define STM32F746_PC12_FUNC_GPIO 0x2c00 -#define STM32F746_PC12_FUNC_TRACED3 0x2c01 -#define STM32F746_PC12_FUNC_SPI3_MOSI_I2S3_SD 0x2c07 -#define STM32F746_PC12_FUNC_USART3_CK 0x2c08 -#define STM32F746_PC12_FUNC_UART5_TX 0x2c09 -#define STM32F746_PC12_FUNC_SDMMC1_CK 0x2c0d -#define STM32F746_PC12_FUNC_DCMI_D9 0x2c0e -#define STM32F746_PC12_FUNC_EVENTOUT 0x2c10 -#define STM32F746_PC12_FUNC_ANALOG 0x2c11 - -#define STM32F746_PC13_FUNC_GPIO 0x2d00 -#define STM32F746_PC13_FUNC_EVENTOUT 0x2d10 -#define STM32F746_PC13_FUNC_ANALOG 0x2d11 - -#define STM32F746_PC14_FUNC_GPIO 0x2e00 -#define STM32F746_PC14_FUNC_EVENTOUT 0x2e10 -#define STM32F746_PC14_FUNC_ANALOG 0x2e11 - -#define STM32F746_PC15_FUNC_GPIO 0x2f00 -#define STM32F746_PC15_FUNC_EVENTOUT 0x2f10 -#define STM32F746_PC15_FUNC_ANALOG 0x2f11 - - -#define STM32F746_PD0_FUNC_GPIO 0x3000 -#define STM32F746_PD0_FUNC_CAN1_RX 0x300a -#define STM32F746_PD0_FUNC_FMC_D2 0x300d -#define STM32F746_PD0_FUNC_EVENTOUT 0x3010 -#define STM32F746_PD0_FUNC_ANALOG 0x3011 - -#define STM32F746_PD1_FUNC_GPIO 0x3100 -#define STM32F746_PD1_FUNC_CAN1_TX 0x310a -#define STM32F746_PD1_FUNC_FMC_D3 0x310d -#define STM32F746_PD1_FUNC_EVENTOUT 0x3110 -#define STM32F746_PD1_FUNC_ANALOG 0x3111 - -#define STM32F746_PD2_FUNC_GPIO 0x3200 -#define STM32F746_PD2_FUNC_TRACED2 0x3201 -#define STM32F746_PD2_FUNC_TIM3_ETR 0x3203 -#define STM32F746_PD2_FUNC_UART5_RX 0x3209 -#define STM32F746_PD2_FUNC_SDMMC1_CMD 0x320d -#define STM32F746_PD2_FUNC_DCMI_D11 0x320e -#define STM32F746_PD2_FUNC_EVENTOUT 0x3210 -#define STM32F746_PD2_FUNC_ANALOG 0x3211 - -#define STM32F746_PD3_FUNC_GPIO 0x3300 -#define STM32F746_PD3_FUNC_SPI2_SCK_I2S2_CK 0x3306 -#define STM32F746_PD3_FUNC_USART2_CTS 0x3308 -#define STM32F746_PD3_FUNC_FMC_CLK 0x330d -#define STM32F746_PD3_FUNC_DCMI_D5 0x330e -#define STM32F746_PD3_FUNC_LCD_G7 0x330f -#define STM32F746_PD3_FUNC_EVENTOUT 0x3310 -#define STM32F746_PD3_FUNC_ANALOG 0x3311 - -#define STM32F746_PD4_FUNC_GPIO 0x3400 -#define STM32F746_PD4_FUNC_USART2_RTS 0x3408 -#define STM32F746_PD4_FUNC_FMC_NOE 0x340d -#define STM32F746_PD4_FUNC_EVENTOUT 0x3410 -#define STM32F746_PD4_FUNC_ANALOG 0x3411 - -#define STM32F746_PD5_FUNC_GPIO 0x3500 -#define STM32F746_PD5_FUNC_USART2_TX 0x3508 -#define STM32F746_PD5_FUNC_FMC_NWE 0x350d -#define STM32F746_PD5_FUNC_EVENTOUT 0x3510 -#define STM32F746_PD5_FUNC_ANALOG 0x3511 - -#define STM32F746_PD6_FUNC_GPIO 0x3600 -#define STM32F746_PD6_FUNC_SPI3_MOSI_I2S3_SD 0x3606 -#define STM32F746_PD6_FUNC_SAI1_SD_A 0x3607 -#define STM32F746_PD6_FUNC_USART2_RX 0x3608 -#define STM32F746_PD6_FUNC_FMC_NWAIT 0x360d -#define STM32F746_PD6_FUNC_DCMI_D10 0x360e -#define STM32F746_PD6_FUNC_LCD_B2 0x360f -#define STM32F746_PD6_FUNC_EVENTOUT 0x3610 -#define STM32F746_PD6_FUNC_ANALOG 0x3611 - -#define STM32F746_PD7_FUNC_GPIO 0x3700 -#define STM32F746_PD7_FUNC_USART2_CK 0x3708 -#define STM32F746_PD7_FUNC_SPDIFRX_IN0 0x3709 -#define STM32F746_PD7_FUNC_FMC_NE1 0x370d -#define STM32F746_PD7_FUNC_EVENTOUT 0x3710 -#define STM32F746_PD7_FUNC_ANALOG 0x3711 - -#define STM32F746_PD8_FUNC_GPIO 0x3800 -#define STM32F746_PD8_FUNC_USART3_TX 0x3808 -#define STM32F746_PD8_FUNC_SPDIFRX_IN1 0x3809 -#define STM32F746_PD8_FUNC_FMC_D13 0x380d -#define STM32F746_PD8_FUNC_EVENTOUT 0x3810 -#define STM32F746_PD8_FUNC_ANALOG 0x3811 - -#define STM32F746_PD9_FUNC_GPIO 0x3900 -#define STM32F746_PD9_FUNC_USART3_RX 0x3908 -#define STM32F746_PD9_FUNC_FMC_D14 0x390d -#define STM32F746_PD9_FUNC_EVENTOUT 0x3910 -#define STM32F746_PD9_FUNC_ANALOG 0x3911 - -#define STM32F746_PD10_FUNC_GPIO 0x3a00 -#define STM32F746_PD10_FUNC_USART3_CK 0x3a08 -#define STM32F746_PD10_FUNC_FMC_D15 0x3a0d -#define STM32F746_PD10_FUNC_LCD_B3 0x3a0f -#define STM32F746_PD10_FUNC_EVENTOUT 0x3a10 -#define STM32F746_PD10_FUNC_ANALOG 0x3a11 - -#define STM32F746_PD11_FUNC_GPIO 0x3b00 -#define STM32F746_PD11_FUNC_I2C4_SMBA 0x3b05 -#define STM32F746_PD11_FUNC_USART3_CTS 0x3b08 -#define STM32F746_PD11_FUNC_QUADSPI_BK1_IO0 0x3b0a -#define STM32F746_PD11_FUNC_SAI2_SD_A 0x3b0b -#define STM32F746_PD11_FUNC_FMC_A16_FMC_CLE 0x3b0d -#define STM32F746_PD11_FUNC_EVENTOUT 0x3b10 -#define STM32F746_PD11_FUNC_ANALOG 0x3b11 - -#define STM32F746_PD12_FUNC_GPIO 0x3c00 -#define STM32F746_PD12_FUNC_TIM4_CH1 0x3c03 -#define STM32F746_PD12_FUNC_LPTIM1_IN1 0x3c04 -#define STM32F746_PD12_FUNC_I2C4_SCL 0x3c05 -#define STM32F746_PD12_FUNC_USART3_RTS 0x3c08 -#define STM32F746_PD12_FUNC_QUADSPI_BK1_IO1 0x3c0a -#define STM32F746_PD12_FUNC_SAI2_FS_A 0x3c0b -#define STM32F746_PD12_FUNC_FMC_A17_FMC_ALE 0x3c0d -#define STM32F746_PD12_FUNC_EVENTOUT 0x3c10 -#define STM32F746_PD12_FUNC_ANALOG 0x3c11 - -#define STM32F746_PD13_FUNC_GPIO 0x3d00 -#define STM32F746_PD13_FUNC_TIM4_CH2 0x3d03 -#define STM32F746_PD13_FUNC_LPTIM1_OUT 0x3d04 -#define STM32F746_PD13_FUNC_I2C4_SDA 0x3d05 -#define STM32F746_PD13_FUNC_QUADSPI_BK1_IO3 0x3d0a -#define STM32F746_PD13_FUNC_SAI2_SCK_A 0x3d0b -#define STM32F746_PD13_FUNC_FMC_A18 0x3d0d -#define STM32F746_PD13_FUNC_EVENTOUT 0x3d10 -#define STM32F746_PD13_FUNC_ANALOG 0x3d11 - -#define STM32F746_PD14_FUNC_GPIO 0x3e00 -#define STM32F746_PD14_FUNC_TIM4_CH3 0x3e03 -#define STM32F746_PD14_FUNC_UART8_CTS 0x3e09 -#define STM32F746_PD14_FUNC_FMC_D0 0x3e0d -#define STM32F746_PD14_FUNC_EVENTOUT 0x3e10 -#define STM32F746_PD14_FUNC_ANALOG 0x3e11 - -#define STM32F746_PD15_FUNC_GPIO 0x3f00 -#define STM32F746_PD15_FUNC_TIM4_CH4 0x3f03 -#define STM32F746_PD15_FUNC_UART8_RTS 0x3f09 -#define STM32F746_PD15_FUNC_FMC_D1 0x3f0d -#define STM32F746_PD15_FUNC_EVENTOUT 0x3f10 -#define STM32F746_PD15_FUNC_ANALOG 0x3f11 - - -#define STM32F746_PE0_FUNC_GPIO 0x4000 -#define STM32F746_PE0_FUNC_TIM4_ETR 0x4003 -#define STM32F746_PE0_FUNC_LPTIM1_ETR 0x4004 -#define STM32F746_PE0_FUNC_UART8_RX 0x4009 -#define STM32F746_PE0_FUNC_SAI2_MCLK_A 0x400b -#define STM32F746_PE0_FUNC_FMC_NBL0 0x400d -#define STM32F746_PE0_FUNC_DCMI_D2 0x400e -#define STM32F746_PE0_FUNC_EVENTOUT 0x4010 -#define STM32F746_PE0_FUNC_ANALOG 0x4011 - -#define STM32F746_PE1_FUNC_GPIO 0x4100 -#define STM32F746_PE1_FUNC_LPTIM1_IN2 0x4104 -#define STM32F746_PE1_FUNC_UART8_TX 0x4109 -#define STM32F746_PE1_FUNC_FMC_NBL1 0x410d -#define STM32F746_PE1_FUNC_DCMI_D3 0x410e -#define STM32F746_PE1_FUNC_EVENTOUT 0x4110 -#define STM32F746_PE1_FUNC_ANALOG 0x4111 - -#define STM32F746_PE2_FUNC_GPIO 0x4200 -#define STM32F746_PE2_FUNC_TRACECLK 0x4201 -#define STM32F746_PE2_FUNC_SPI4_SCK 0x4206 -#define STM32F746_PE2_FUNC_SAI1_MCLK_A 0x4207 -#define STM32F746_PE2_FUNC_QUADSPI_BK1_IO2 0x420a -#define STM32F746_PE2_FUNC_ETH_MII_TXD3 0x420c -#define STM32F746_PE2_FUNC_FMC_A23 0x420d -#define STM32F746_PE2_FUNC_EVENTOUT 0x4210 -#define STM32F746_PE2_FUNC_ANALOG 0x4211 - -#define STM32F746_PE3_FUNC_GPIO 0x4300 -#define STM32F746_PE3_FUNC_TRACED0 0x4301 -#define STM32F746_PE3_FUNC_SAI1_SD_B 0x4307 -#define STM32F746_PE3_FUNC_FMC_A19 0x430d -#define STM32F746_PE3_FUNC_EVENTOUT 0x4310 -#define STM32F746_PE3_FUNC_ANALOG 0x4311 - -#define STM32F746_PE4_FUNC_GPIO 0x4400 -#define STM32F746_PE4_FUNC_TRACED1 0x4401 -#define STM32F746_PE4_FUNC_SPI4_NSS 0x4406 -#define STM32F746_PE4_FUNC_SAI1_FS_A 0x4407 -#define STM32F746_PE4_FUNC_FMC_A20 0x440d -#define STM32F746_PE4_FUNC_DCMI_D4 0x440e -#define STM32F746_PE4_FUNC_LCD_B0 0x440f -#define STM32F746_PE4_FUNC_EVENTOUT 0x4410 -#define STM32F746_PE4_FUNC_ANALOG 0x4411 - -#define STM32F746_PE5_FUNC_GPIO 0x4500 -#define STM32F746_PE5_FUNC_TRACED2 0x4501 -#define STM32F746_PE5_FUNC_TIM9_CH1 0x4504 -#define STM32F746_PE5_FUNC_SPI4_MISO 0x4506 -#define STM32F746_PE5_FUNC_SAI1_SCK_A 0x4507 -#define STM32F746_PE5_FUNC_FMC_A21 0x450d -#define STM32F746_PE5_FUNC_DCMI_D6 0x450e -#define STM32F746_PE5_FUNC_LCD_G0 0x450f -#define STM32F746_PE5_FUNC_EVENTOUT 0x4510 -#define STM32F746_PE5_FUNC_ANALOG 0x4511 - -#define STM32F746_PE6_FUNC_GPIO 0x4600 -#define STM32F746_PE6_FUNC_TRACED3 0x4601 -#define STM32F746_PE6_FUNC_TIM1_BKIN2 0x4602 -#define STM32F746_PE6_FUNC_TIM9_CH2 0x4604 -#define STM32F746_PE6_FUNC_SPI4_MOSI 0x4606 -#define STM32F746_PE6_FUNC_SAI1_SD_A 0x4607 -#define STM32F746_PE6_FUNC_SAI2_MCLK_B 0x460b -#define STM32F746_PE6_FUNC_FMC_A22 0x460d -#define STM32F746_PE6_FUNC_DCMI_D7 0x460e -#define STM32F746_PE6_FUNC_LCD_G1 0x460f -#define STM32F746_PE6_FUNC_EVENTOUT 0x4610 -#define STM32F746_PE6_FUNC_ANALOG 0x4611 - -#define STM32F746_PE7_FUNC_GPIO 0x4700 -#define STM32F746_PE7_FUNC_TIM1_ETR 0x4702 -#define STM32F746_PE7_FUNC_UART7_RX 0x4709 -#define STM32F746_PE7_FUNC_QUADSPI_BK2_IO0 0x470b -#define STM32F746_PE7_FUNC_FMC_D4 0x470d -#define STM32F746_PE7_FUNC_EVENTOUT 0x4710 -#define STM32F746_PE7_FUNC_ANALOG 0x4711 - -#define STM32F746_PE8_FUNC_GPIO 0x4800 -#define STM32F746_PE8_FUNC_TIM1_CH1N 0x4802 -#define STM32F746_PE8_FUNC_UART7_TX 0x4809 -#define STM32F746_PE8_FUNC_QUADSPI_BK2_IO1 0x480b -#define STM32F746_PE8_FUNC_FMC_D5 0x480d -#define STM32F746_PE8_FUNC_EVENTOUT 0x4810 -#define STM32F746_PE8_FUNC_ANALOG 0x4811 - -#define STM32F746_PE9_FUNC_GPIO 0x4900 -#define STM32F746_PE9_FUNC_TIM1_CH1 0x4902 -#define STM32F746_PE9_FUNC_UART7_RTS 0x4909 -#define STM32F746_PE9_FUNC_QUADSPI_BK2_IO2 0x490b -#define STM32F746_PE9_FUNC_FMC_D6 0x490d -#define STM32F746_PE9_FUNC_EVENTOUT 0x4910 -#define STM32F746_PE9_FUNC_ANALOG 0x4911 - -#define STM32F746_PE10_FUNC_GPIO 0x4a00 -#define STM32F746_PE10_FUNC_TIM1_CH2N 0x4a02 -#define STM32F746_PE10_FUNC_UART7_CTS 0x4a09 -#define STM32F746_PE10_FUNC_QUADSPI_BK2_IO3 0x4a0b -#define STM32F746_PE10_FUNC_FMC_D7 0x4a0d -#define STM32F746_PE10_FUNC_EVENTOUT 0x4a10 -#define STM32F746_PE10_FUNC_ANALOG 0x4a11 - -#define STM32F746_PE11_FUNC_GPIO 0x4b00 -#define STM32F746_PE11_FUNC_TIM1_CH2 0x4b02 -#define STM32F746_PE11_FUNC_SPI4_NSS 0x4b06 -#define STM32F746_PE11_FUNC_SAI2_SD_B 0x4b0b -#define STM32F746_PE11_FUNC_FMC_D8 0x4b0d -#define STM32F746_PE11_FUNC_LCD_G3 0x4b0f -#define STM32F746_PE11_FUNC_EVENTOUT 0x4b10 -#define STM32F746_PE11_FUNC_ANALOG 0x4b11 - -#define STM32F746_PE12_FUNC_GPIO 0x4c00 -#define STM32F746_PE12_FUNC_TIM1_CH3N 0x4c02 -#define STM32F746_PE12_FUNC_SPI4_SCK 0x4c06 -#define STM32F746_PE12_FUNC_SAI2_SCK_B 0x4c0b -#define STM32F746_PE12_FUNC_FMC_D9 0x4c0d -#define STM32F746_PE12_FUNC_LCD_B4 0x4c0f -#define STM32F746_PE12_FUNC_EVENTOUT 0x4c10 -#define STM32F746_PE12_FUNC_ANALOG 0x4c11 - -#define STM32F746_PE13_FUNC_GPIO 0x4d00 -#define STM32F746_PE13_FUNC_TIM1_CH3 0x4d02 -#define STM32F746_PE13_FUNC_SPI4_MISO 0x4d06 -#define STM32F746_PE13_FUNC_SAI2_FS_B 0x4d0b -#define STM32F746_PE13_FUNC_FMC_D10 0x4d0d -#define STM32F746_PE13_FUNC_LCD_DE 0x4d0f -#define STM32F746_PE13_FUNC_EVENTOUT 0x4d10 -#define STM32F746_PE13_FUNC_ANALOG 0x4d11 - -#define STM32F746_PE14_FUNC_GPIO 0x4e00 -#define STM32F746_PE14_FUNC_TIM1_CH4 0x4e02 -#define STM32F746_PE14_FUNC_SPI4_MOSI 0x4e06 -#define STM32F746_PE14_FUNC_SAI2_MCLK_B 0x4e0b -#define STM32F746_PE14_FUNC_FMC_D11 0x4e0d -#define STM32F746_PE14_FUNC_LCD_CLK 0x4e0f -#define STM32F746_PE14_FUNC_EVENTOUT 0x4e10 -#define STM32F746_PE14_FUNC_ANALOG 0x4e11 - -#define STM32F746_PE15_FUNC_GPIO 0x4f00 -#define STM32F746_PE15_FUNC_TIM1_BKIN 0x4f02 -#define STM32F746_PE15_FUNC_FMC_D12 0x4f0d -#define STM32F746_PE15_FUNC_LCD_R7 0x4f0f -#define STM32F746_PE15_FUNC_EVENTOUT 0x4f10 -#define STM32F746_PE15_FUNC_ANALOG 0x4f11 - - -#define STM32F746_PF0_FUNC_GPIO 0x5000 -#define STM32F746_PF0_FUNC_I2C2_SDA 0x5005 -#define STM32F746_PF0_FUNC_FMC_A0 0x500d -#define STM32F746_PF0_FUNC_EVENTOUT 0x5010 -#define STM32F746_PF0_FUNC_ANALOG 0x5011 - -#define STM32F746_PF1_FUNC_GPIO 0x5100 -#define STM32F746_PF1_FUNC_I2C2_SCL 0x5105 -#define STM32F746_PF1_FUNC_FMC_A1 0x510d -#define STM32F746_PF1_FUNC_EVENTOUT 0x5110 -#define STM32F746_PF1_FUNC_ANALOG 0x5111 - -#define STM32F746_PF2_FUNC_GPIO 0x5200 -#define STM32F746_PF2_FUNC_I2C2_SMBA 0x5205 -#define STM32F746_PF2_FUNC_FMC_A2 0x520d -#define STM32F746_PF2_FUNC_EVENTOUT 0x5210 -#define STM32F746_PF2_FUNC_ANALOG 0x5211 - -#define STM32F746_PF3_FUNC_GPIO 0x5300 -#define STM32F746_PF3_FUNC_FMC_A3 0x530d -#define STM32F746_PF3_FUNC_EVENTOUT 0x5310 -#define STM32F746_PF3_FUNC_ANALOG 0x5311 - -#define STM32F746_PF4_FUNC_GPIO 0x5400 -#define STM32F746_PF4_FUNC_FMC_A4 0x540d -#define STM32F746_PF4_FUNC_EVENTOUT 0x5410 -#define STM32F746_PF4_FUNC_ANALOG 0x5411 - -#define STM32F746_PF5_FUNC_GPIO 0x5500 -#define STM32F746_PF5_FUNC_FMC_A5 0x550d -#define STM32F746_PF5_FUNC_EVENTOUT 0x5510 -#define STM32F746_PF5_FUNC_ANALOG 0x5511 - -#define STM32F746_PF6_FUNC_GPIO 0x5600 -#define STM32F746_PF6_FUNC_TIM10_CH1 0x5604 -#define STM32F746_PF6_FUNC_SPI5_NSS 0x5606 -#define STM32F746_PF6_FUNC_SAI1_SD_B 0x5607 -#define STM32F746_PF6_FUNC_UART7_RX 0x5609 -#define STM32F746_PF6_FUNC_QUADSPI_BK1_IO3 0x560a -#define STM32F746_PF6_FUNC_EVENTOUT 0x5610 -#define STM32F746_PF6_FUNC_ANALOG 0x5611 - -#define STM32F746_PF7_FUNC_GPIO 0x5700 -#define STM32F746_PF7_FUNC_TIM11_CH1 0x5704 -#define STM32F746_PF7_FUNC_SPI5_SCK 0x5706 -#define STM32F746_PF7_FUNC_SAI1_MCLK_B 0x5707 -#define STM32F746_PF7_FUNC_UART7_TX 0x5709 -#define STM32F746_PF7_FUNC_QUADSPI_BK1_IO2 0x570a -#define STM32F746_PF7_FUNC_EVENTOUT 0x5710 -#define STM32F746_PF7_FUNC_ANALOG 0x5711 - -#define STM32F746_PF8_FUNC_GPIO 0x5800 -#define STM32F746_PF8_FUNC_SPI5_MISO 0x5806 -#define STM32F746_PF8_FUNC_SAI1_SCK_B 0x5807 -#define STM32F746_PF8_FUNC_UART7_RTS 0x5809 -#define STM32F746_PF8_FUNC_TIM13_CH1 0x580a -#define STM32F746_PF8_FUNC_QUADSPI_BK1_IO0 0x580b -#define STM32F746_PF8_FUNC_EVENTOUT 0x5810 -#define STM32F746_PF8_FUNC_ANALOG 0x5811 - -#define STM32F746_PF9_FUNC_GPIO 0x5900 -#define STM32F746_PF9_FUNC_SPI5_MOSI 0x5906 -#define STM32F746_PF9_FUNC_SAI1_FS_B 0x5907 -#define STM32F746_PF9_FUNC_UART7_CTS 0x5909 -#define STM32F746_PF9_FUNC_TIM14_CH1 0x590a -#define STM32F746_PF9_FUNC_QUADSPI_BK1_IO1 0x590b -#define STM32F746_PF9_FUNC_EVENTOUT 0x5910 -#define STM32F746_PF9_FUNC_ANALOG 0x5911 - -#define STM32F746_PF10_FUNC_GPIO 0x5a00 -#define STM32F746_PF10_FUNC_DCMI_D11 0x5a0e -#define STM32F746_PF10_FUNC_LCD_DE 0x5a0f -#define STM32F746_PF10_FUNC_EVENTOUT 0x5a10 -#define STM32F746_PF10_FUNC_ANALOG 0x5a11 - -#define STM32F746_PF11_FUNC_GPIO 0x5b00 -#define STM32F746_PF11_FUNC_SPI5_MOSI 0x5b06 -#define STM32F746_PF11_FUNC_SAI2_SD_B 0x5b0b -#define STM32F746_PF11_FUNC_FMC_SDNRAS 0x5b0d -#define STM32F746_PF11_FUNC_DCMI_D12 0x5b0e -#define STM32F746_PF11_FUNC_EVENTOUT 0x5b10 -#define STM32F746_PF11_FUNC_ANALOG 0x5b11 - -#define STM32F746_PF12_FUNC_GPIO 0x5c00 -#define STM32F746_PF12_FUNC_FMC_A6 0x5c0d -#define STM32F746_PF12_FUNC_EVENTOUT 0x5c10 -#define STM32F746_PF12_FUNC_ANALOG 0x5c11 - -#define STM32F746_PF13_FUNC_GPIO 0x5d00 -#define STM32F746_PF13_FUNC_I2C4_SMBA 0x5d05 -#define STM32F746_PF13_FUNC_FMC_A7 0x5d0d -#define STM32F746_PF13_FUNC_EVENTOUT 0x5d10 -#define STM32F746_PF13_FUNC_ANALOG 0x5d11 - -#define STM32F746_PF14_FUNC_GPIO 0x5e00 -#define STM32F746_PF14_FUNC_I2C4_SCL 0x5e05 -#define STM32F746_PF14_FUNC_FMC_A8 0x5e0d -#define STM32F746_PF14_FUNC_EVENTOUT 0x5e10 -#define STM32F746_PF14_FUNC_ANALOG 0x5e11 - -#define STM32F746_PF15_FUNC_GPIO 0x5f00 -#define STM32F746_PF15_FUNC_I2C4_SDA 0x5f05 -#define STM32F746_PF15_FUNC_FMC_A9 0x5f0d -#define STM32F746_PF15_FUNC_EVENTOUT 0x5f10 -#define STM32F746_PF15_FUNC_ANALOG 0x5f11 - - -#define STM32F746_PG0_FUNC_GPIO 0x6000 -#define STM32F746_PG0_FUNC_FMC_A10 0x600d -#define STM32F746_PG0_FUNC_EVENTOUT 0x6010 -#define STM32F746_PG0_FUNC_ANALOG 0x6011 - -#define STM32F746_PG1_FUNC_GPIO 0x6100 -#define STM32F746_PG1_FUNC_FMC_A11 0x610d -#define STM32F746_PG1_FUNC_EVENTOUT 0x6110 -#define STM32F746_PG1_FUNC_ANALOG 0x6111 - -#define STM32F746_PG2_FUNC_GPIO 0x6200 -#define STM32F746_PG2_FUNC_FMC_A12 0x620d -#define STM32F746_PG2_FUNC_EVENTOUT 0x6210 -#define STM32F746_PG2_FUNC_ANALOG 0x6211 - -#define STM32F746_PG3_FUNC_GPIO 0x6300 -#define STM32F746_PG3_FUNC_FMC_A13 0x630d -#define STM32F746_PG3_FUNC_EVENTOUT 0x6310 -#define STM32F746_PG3_FUNC_ANALOG 0x6311 - -#define STM32F746_PG4_FUNC_GPIO 0x6400 -#define STM32F746_PG4_FUNC_FMC_A14_FMC_BA0 0x640d -#define STM32F746_PG4_FUNC_EVENTOUT 0x6410 -#define STM32F746_PG4_FUNC_ANALOG 0x6411 - -#define STM32F746_PG5_FUNC_GPIO 0x6500 -#define STM32F746_PG5_FUNC_FMC_A15_FMC_BA1 0x650d -#define STM32F746_PG5_FUNC_EVENTOUT 0x6510 -#define STM32F746_PG5_FUNC_ANALOG 0x6511 - -#define STM32F746_PG6_FUNC_GPIO 0x6600 -#define STM32F746_PG6_FUNC_DCMI_D12 0x660e -#define STM32F746_PG6_FUNC_LCD_R7 0x660f -#define STM32F746_PG6_FUNC_EVENTOUT 0x6610 -#define STM32F746_PG6_FUNC_ANALOG 0x6611 - -#define STM32F746_PG7_FUNC_GPIO 0x6700 -#define STM32F746_PG7_FUNC_USART6_CK 0x6709 -#define STM32F746_PG7_FUNC_FMC_INT 0x670d -#define STM32F746_PG7_FUNC_DCMI_D13 0x670e -#define STM32F746_PG7_FUNC_LCD_CLK 0x670f -#define STM32F746_PG7_FUNC_EVENTOUT 0x6710 -#define STM32F746_PG7_FUNC_ANALOG 0x6711 - -#define STM32F746_PG8_FUNC_GPIO 0x6800 -#define STM32F746_PG8_FUNC_SPI6_NSS 0x6806 -#define STM32F746_PG8_FUNC_SPDIFRX_IN2 0x6808 -#define STM32F746_PG8_FUNC_USART6_RTS 0x6809 -#define STM32F746_PG8_FUNC_ETH_PPS_OUT 0x680c -#define STM32F746_PG8_FUNC_FMC_SDCLK 0x680d -#define STM32F746_PG8_FUNC_EVENTOUT 0x6810 -#define STM32F746_PG8_FUNC_ANALOG 0x6811 - -#define STM32F746_PG9_FUNC_GPIO 0x6900 -#define STM32F746_PG9_FUNC_SPDIFRX_IN3 0x6908 -#define STM32F746_PG9_FUNC_USART6_RX 0x6909 -#define STM32F746_PG9_FUNC_QUADSPI_BK2_IO2 0x690a -#define STM32F746_PG9_FUNC_SAI2_FS_B 0x690b -#define STM32F746_PG9_FUNC_FMC_NE2_FMC_NCE 0x690d -#define STM32F746_PG9_FUNC_DCMI_VSYNC 0x690e -#define STM32F746_PG9_FUNC_EVENTOUT 0x6910 -#define STM32F746_PG9_FUNC_ANALOG 0x6911 - -#define STM32F746_PG10_FUNC_GPIO 0x6a00 -#define STM32F746_PG10_FUNC_LCD_G3 0x6a0a -#define STM32F746_PG10_FUNC_SAI2_SD_B 0x6a0b -#define STM32F746_PG10_FUNC_FMC_NE3 0x6a0d -#define STM32F746_PG10_FUNC_DCMI_D2 0x6a0e -#define STM32F746_PG10_FUNC_LCD_B2 0x6a0f -#define STM32F746_PG10_FUNC_EVENTOUT 0x6a10 -#define STM32F746_PG10_FUNC_ANALOG 0x6a11 - -#define STM32F746_PG11_FUNC_GPIO 0x6b00 -#define STM32F746_PG11_FUNC_SPDIFRX_IN0 0x6b08 -#define STM32F746_PG11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN 0x6b0c -#define STM32F746_PG11_FUNC_DCMI_D3 0x6b0e -#define STM32F746_PG11_FUNC_LCD_B3 0x6b0f -#define STM32F746_PG11_FUNC_EVENTOUT 0x6b10 -#define STM32F746_PG11_FUNC_ANALOG 0x6b11 - -#define STM32F746_PG12_FUNC_GPIO 0x6c00 -#define STM32F746_PG12_FUNC_LPTIM1_IN1 0x6c04 -#define STM32F746_PG12_FUNC_SPI6_MISO 0x6c06 -#define STM32F746_PG12_FUNC_SPDIFRX_IN1 0x6c08 -#define STM32F746_PG12_FUNC_USART6_RTS 0x6c09 -#define STM32F746_PG12_FUNC_LCD_B4 0x6c0a -#define STM32F746_PG12_FUNC_FMC_NE4 0x6c0d -#define STM32F746_PG12_FUNC_LCD_B1 0x6c0f -#define STM32F746_PG12_FUNC_EVENTOUT 0x6c10 -#define STM32F746_PG12_FUNC_ANALOG 0x6c11 - -#define STM32F746_PG13_FUNC_GPIO 0x6d00 -#define STM32F746_PG13_FUNC_TRACED0 0x6d01 -#define STM32F746_PG13_FUNC_LPTIM1_OUT 0x6d04 -#define STM32F746_PG13_FUNC_SPI6_SCK 0x6d06 -#define STM32F746_PG13_FUNC_USART6_CTS 0x6d09 -#define STM32F746_PG13_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0 0x6d0c -#define STM32F746_PG13_FUNC_FMC_A24 0x6d0d -#define STM32F746_PG13_FUNC_LCD_R0 0x6d0f -#define STM32F746_PG13_FUNC_EVENTOUT 0x6d10 -#define STM32F746_PG13_FUNC_ANALOG 0x6d11 - -#define STM32F746_PG14_FUNC_GPIO 0x6e00 -#define STM32F746_PG14_FUNC_TRACED1 0x6e01 -#define STM32F746_PG14_FUNC_LPTIM1_ETR 0x6e04 -#define STM32F746_PG14_FUNC_SPI6_MOSI 0x6e06 -#define STM32F746_PG14_FUNC_USART6_TX 0x6e09 -#define STM32F746_PG14_FUNC_QUADSPI_BK2_IO3 0x6e0a -#define STM32F746_PG14_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1 0x6e0c -#define STM32F746_PG14_FUNC_FMC_A25 0x6e0d -#define STM32F746_PG14_FUNC_LCD_B0 0x6e0f -#define STM32F746_PG14_FUNC_EVENTOUT 0x6e10 -#define STM32F746_PG14_FUNC_ANALOG 0x6e11 - -#define STM32F746_PG15_FUNC_GPIO 0x6f00 -#define STM32F746_PG15_FUNC_USART6_CTS 0x6f09 -#define STM32F746_PG15_FUNC_FMC_SDNCAS 0x6f0d -#define STM32F746_PG15_FUNC_DCMI_D13 0x6f0e -#define STM32F746_PG15_FUNC_EVENTOUT 0x6f10 -#define STM32F746_PG15_FUNC_ANALOG 0x6f11 - - -#define STM32F746_PH0_FUNC_GPIO 0x7000 -#define STM32F746_PH0_FUNC_EVENTOUT 0x7010 -#define STM32F746_PH0_FUNC_ANALOG 0x7011 - -#define STM32F746_PH1_FUNC_GPIO 0x7100 -#define STM32F746_PH1_FUNC_EVENTOUT 0x7110 -#define STM32F746_PH1_FUNC_ANALOG 0x7111 - -#define STM32F746_PH2_FUNC_GPIO 0x7200 -#define STM32F746_PH2_FUNC_LPTIM1_IN2 0x7204 -#define STM32F746_PH2_FUNC_QUADSPI_BK2_IO0 0x720a -#define STM32F746_PH2_FUNC_SAI2_SCK_B 0x720b -#define STM32F746_PH2_FUNC_ETH_MII_CRS 0x720c -#define STM32F746_PH2_FUNC_FMC_SDCKE0 0x720d -#define STM32F746_PH2_FUNC_LCD_R0 0x720f -#define STM32F746_PH2_FUNC_EVENTOUT 0x7210 -#define STM32F746_PH2_FUNC_ANALOG 0x7211 - -#define STM32F746_PH3_FUNC_GPIO 0x7300 -#define STM32F746_PH3_FUNC_QUADSPI_BK2_IO1 0x730a -#define STM32F746_PH3_FUNC_SAI2_MCLK_B 0x730b -#define STM32F746_PH3_FUNC_ETH_MII_COL 0x730c -#define STM32F746_PH3_FUNC_FMC_SDNE0 0x730d -#define STM32F746_PH3_FUNC_LCD_R1 0x730f -#define STM32F746_PH3_FUNC_EVENTOUT 0x7310 -#define STM32F746_PH3_FUNC_ANALOG 0x7311 - -#define STM32F746_PH4_FUNC_GPIO 0x7400 -#define STM32F746_PH4_FUNC_I2C2_SCL 0x7405 -#define STM32F746_PH4_FUNC_OTG_HS_ULPI_NXT 0x740b -#define STM32F746_PH4_FUNC_EVENTOUT 0x7410 -#define STM32F746_PH4_FUNC_ANALOG 0x7411 - -#define STM32F746_PH5_FUNC_GPIO 0x7500 -#define STM32F746_PH5_FUNC_I2C2_SDA 0x7505 -#define STM32F746_PH5_FUNC_SPI5_NSS 0x7506 -#define STM32F746_PH5_FUNC_FMC_SDNWE 0x750d -#define STM32F746_PH5_FUNC_EVENTOUT 0x7510 -#define STM32F746_PH5_FUNC_ANALOG 0x7511 - -#define STM32F746_PH6_FUNC_GPIO 0x7600 -#define STM32F746_PH6_FUNC_I2C2_SMBA 0x7605 -#define STM32F746_PH6_FUNC_SPI5_SCK 0x7606 -#define STM32F746_PH6_FUNC_TIM12_CH1 0x760a -#define STM32F746_PH6_FUNC_ETH_MII_RXD2 0x760c -#define STM32F746_PH6_FUNC_FMC_SDNE1 0x760d -#define STM32F746_PH6_FUNC_DCMI_D8 0x760e -#define STM32F746_PH6_FUNC_EVENTOUT 0x7610 -#define STM32F746_PH6_FUNC_ANALOG 0x7611 - -#define STM32F746_PH7_FUNC_GPIO 0x7700 -#define STM32F746_PH7_FUNC_I2C3_SCL 0x7705 -#define STM32F746_PH7_FUNC_SPI5_MISO 0x7706 -#define STM32F746_PH7_FUNC_ETH_MII_RXD3 0x770c -#define STM32F746_PH7_FUNC_FMC_SDCKE1 0x770d -#define STM32F746_PH7_FUNC_DCMI_D9 0x770e -#define STM32F746_PH7_FUNC_EVENTOUT 0x7710 -#define STM32F746_PH7_FUNC_ANALOG 0x7711 - -#define STM32F746_PH8_FUNC_GPIO 0x7800 -#define STM32F746_PH8_FUNC_I2C3_SDA 0x7805 -#define STM32F746_PH8_FUNC_FMC_D16 0x780d -#define STM32F746_PH8_FUNC_DCMI_HSYNC 0x780e -#define STM32F746_PH8_FUNC_LCD_R2 0x780f -#define STM32F746_PH8_FUNC_EVENTOUT 0x7810 -#define STM32F746_PH8_FUNC_ANALOG 0x7811 - -#define STM32F746_PH9_FUNC_GPIO 0x7900 -#define STM32F746_PH9_FUNC_I2C3_SMBA 0x7905 -#define STM32F746_PH9_FUNC_TIM12_CH2 0x790a -#define STM32F746_PH9_FUNC_FMC_D17 0x790d -#define STM32F746_PH9_FUNC_DCMI_D0 0x790e -#define STM32F746_PH9_FUNC_LCD_R3 0x790f -#define STM32F746_PH9_FUNC_EVENTOUT 0x7910 -#define STM32F746_PH9_FUNC_ANALOG 0x7911 - -#define STM32F746_PH10_FUNC_GPIO 0x7a00 -#define STM32F746_PH10_FUNC_TIM5_CH1 0x7a03 -#define STM32F746_PH10_FUNC_I2C4_SMBA 0x7a05 -#define STM32F746_PH10_FUNC_FMC_D18 0x7a0d -#define STM32F746_PH10_FUNC_DCMI_D1 0x7a0e -#define STM32F746_PH10_FUNC_LCD_R4 0x7a0f -#define STM32F746_PH10_FUNC_EVENTOUT 0x7a10 -#define STM32F746_PH10_FUNC_ANALOG 0x7a11 - -#define STM32F746_PH11_FUNC_GPIO 0x7b00 -#define STM32F746_PH11_FUNC_TIM5_CH2 0x7b03 -#define STM32F746_PH11_FUNC_I2C4_SCL 0x7b05 -#define STM32F746_PH11_FUNC_FMC_D19 0x7b0d -#define STM32F746_PH11_FUNC_DCMI_D2 0x7b0e -#define STM32F746_PH11_FUNC_LCD_R5 0x7b0f -#define STM32F746_PH11_FUNC_EVENTOUT 0x7b10 -#define STM32F746_PH11_FUNC_ANALOG 0x7b11 - -#define STM32F746_PH12_FUNC_GPIO 0x7c00 -#define STM32F746_PH12_FUNC_TIM5_CH3 0x7c03 -#define STM32F746_PH12_FUNC_I2C4_SDA 0x7c05 -#define STM32F746_PH12_FUNC_FMC_D20 0x7c0d -#define STM32F746_PH12_FUNC_DCMI_D3 0x7c0e -#define STM32F746_PH12_FUNC_LCD_R6 0x7c0f -#define STM32F746_PH12_FUNC_EVENTOUT 0x7c10 -#define STM32F746_PH12_FUNC_ANALOG 0x7c11 - -#define STM32F746_PH13_FUNC_GPIO 0x7d00 -#define STM32F746_PH13_FUNC_TIM8_CH1N 0x7d04 -#define STM32F746_PH13_FUNC_CAN1_TX 0x7d0a -#define STM32F746_PH13_FUNC_FMC_D21 0x7d0d -#define STM32F746_PH13_FUNC_LCD_G2 0x7d0f -#define STM32F746_PH13_FUNC_EVENTOUT 0x7d10 -#define STM32F746_PH13_FUNC_ANALOG 0x7d11 - -#define STM32F746_PH14_FUNC_GPIO 0x7e00 -#define STM32F746_PH14_FUNC_TIM8_CH2N 0x7e04 -#define STM32F746_PH14_FUNC_FMC_D22 0x7e0d -#define STM32F746_PH14_FUNC_DCMI_D4 0x7e0e -#define STM32F746_PH14_FUNC_LCD_G3 0x7e0f -#define STM32F746_PH14_FUNC_EVENTOUT 0x7e10 -#define STM32F746_PH14_FUNC_ANALOG 0x7e11 - -#define STM32F746_PH15_FUNC_GPIO 0x7f00 -#define STM32F746_PH15_FUNC_TIM8_CH3N 0x7f04 -#define STM32F746_PH15_FUNC_FMC_D23 0x7f0d -#define STM32F746_PH15_FUNC_DCMI_D11 0x7f0e -#define STM32F746_PH15_FUNC_LCD_G4 0x7f0f -#define STM32F746_PH15_FUNC_EVENTOUT 0x7f10 -#define STM32F746_PH15_FUNC_ANALOG 0x7f11 - - -#define STM32F746_PI0_FUNC_GPIO 0x8000 -#define STM32F746_PI0_FUNC_TIM5_CH4 0x8003 -#define STM32F746_PI0_FUNC_SPI2_NSS_I2S2_WS 0x8006 -#define STM32F746_PI0_FUNC_FMC_D24 0x800d -#define STM32F746_PI0_FUNC_DCMI_D13 0x800e -#define STM32F746_PI0_FUNC_LCD_G5 0x800f -#define STM32F746_PI0_FUNC_EVENTOUT 0x8010 -#define STM32F746_PI0_FUNC_ANALOG 0x8011 - -#define STM32F746_PI1_FUNC_GPIO 0x8100 -#define STM32F746_PI1_FUNC_TIM8_BKIN2 0x8104 -#define STM32F746_PI1_FUNC_SPI2_SCK_I2S2_CK 0x8106 -#define STM32F746_PI1_FUNC_FMC_D25 0x810d -#define STM32F746_PI1_FUNC_DCMI_D8 0x810e -#define STM32F746_PI1_FUNC_LCD_G6 0x810f -#define STM32F746_PI1_FUNC_EVENTOUT 0x8110 -#define STM32F746_PI1_FUNC_ANALOG 0x8111 - -#define STM32F746_PI2_FUNC_GPIO 0x8200 -#define STM32F746_PI2_FUNC_TIM8_CH4 0x8204 -#define STM32F746_PI2_FUNC_SPI2_MISO 0x8206 -#define STM32F746_PI2_FUNC_FMC_D26 0x820d -#define STM32F746_PI2_FUNC_DCMI_D9 0x820e -#define STM32F746_PI2_FUNC_LCD_G7 0x820f -#define STM32F746_PI2_FUNC_EVENTOUT 0x8210 -#define STM32F746_PI2_FUNC_ANALOG 0x8211 - -#define STM32F746_PI3_FUNC_GPIO 0x8300 -#define STM32F746_PI3_FUNC_TIM8_ETR 0x8304 -#define STM32F746_PI3_FUNC_SPI2_MOSI_I2S2_SD 0x8306 -#define STM32F746_PI3_FUNC_FMC_D27 0x830d -#define STM32F746_PI3_FUNC_DCMI_D10 0x830e -#define STM32F746_PI3_FUNC_EVENTOUT 0x8310 -#define STM32F746_PI3_FUNC_ANALOG 0x8311 - -#define STM32F746_PI4_FUNC_GPIO 0x8400 -#define STM32F746_PI4_FUNC_TIM8_BKIN 0x8404 -#define STM32F746_PI4_FUNC_SAI2_MCLK_A 0x840b -#define STM32F746_PI4_FUNC_FMC_NBL2 0x840d -#define STM32F746_PI4_FUNC_DCMI_D5 0x840e -#define STM32F746_PI4_FUNC_LCD_B4 0x840f -#define STM32F746_PI4_FUNC_EVENTOUT 0x8410 -#define STM32F746_PI4_FUNC_ANALOG 0x8411 - -#define STM32F746_PI5_FUNC_GPIO 0x8500 -#define STM32F746_PI5_FUNC_TIM8_CH1 0x8504 -#define STM32F746_PI5_FUNC_SAI2_SCK_A 0x850b -#define STM32F746_PI5_FUNC_FMC_NBL3 0x850d -#define STM32F746_PI5_FUNC_DCMI_VSYNC 0x850e -#define STM32F746_PI5_FUNC_LCD_B5 0x850f -#define STM32F746_PI5_FUNC_EVENTOUT 0x8510 -#define STM32F746_PI5_FUNC_ANALOG 0x8511 - -#define STM32F746_PI6_FUNC_GPIO 0x8600 -#define STM32F746_PI6_FUNC_TIM8_CH2 0x8604 -#define STM32F746_PI6_FUNC_SAI2_SD_A 0x860b -#define STM32F746_PI6_FUNC_FMC_D28 0x860d -#define STM32F746_PI6_FUNC_DCMI_D6 0x860e -#define STM32F746_PI6_FUNC_LCD_B6 0x860f -#define STM32F746_PI6_FUNC_EVENTOUT 0x8610 -#define STM32F746_PI6_FUNC_ANALOG 0x8611 - -#define STM32F746_PI7_FUNC_GPIO 0x8700 -#define STM32F746_PI7_FUNC_TIM8_CH3 0x8704 -#define STM32F746_PI7_FUNC_SAI2_FS_A 0x870b -#define STM32F746_PI7_FUNC_FMC_D29 0x870d -#define STM32F746_PI7_FUNC_DCMI_D7 0x870e -#define STM32F746_PI7_FUNC_LCD_B7 0x870f -#define STM32F746_PI7_FUNC_EVENTOUT 0x8710 -#define STM32F746_PI7_FUNC_ANALOG 0x8711 - -#define STM32F746_PI8_FUNC_GPIO 0x8800 -#define STM32F746_PI8_FUNC_EVENTOUT 0x8810 -#define STM32F746_PI8_FUNC_ANALOG 0x8811 - -#define STM32F746_PI9_FUNC_GPIO 0x8900 -#define STM32F746_PI9_FUNC_CAN1_RX 0x890a -#define STM32F746_PI9_FUNC_FMC_D30 0x890d -#define STM32F746_PI9_FUNC_LCD_VSYNC 0x890f -#define STM32F746_PI9_FUNC_EVENTOUT 0x8910 -#define STM32F746_PI9_FUNC_ANALOG 0x8911 - -#define STM32F746_PI10_FUNC_GPIO 0x8a00 -#define STM32F746_PI10_FUNC_ETH_MII_RX_ER 0x8a0c -#define STM32F746_PI10_FUNC_FMC_D31 0x8a0d -#define STM32F746_PI10_FUNC_LCD_HSYNC 0x8a0f -#define STM32F746_PI10_FUNC_EVENTOUT 0x8a10 -#define STM32F746_PI10_FUNC_ANALOG 0x8a11 - -#define STM32F746_PI11_FUNC_GPIO 0x8b00 -#define STM32F746_PI11_FUNC_OTG_HS_ULPI_DIR 0x8b0b -#define STM32F746_PI11_FUNC_EVENTOUT 0x8b10 -#define STM32F746_PI11_FUNC_ANALOG 0x8b11 - -#define STM32F746_PI12_FUNC_GPIO 0x8c00 -#define STM32F746_PI12_FUNC_LCD_HSYNC 0x8c0f -#define STM32F746_PI12_FUNC_EVENTOUT 0x8c10 -#define STM32F746_PI12_FUNC_ANALOG 0x8c11 - -#define STM32F746_PI13_FUNC_GPIO 0x8d00 -#define STM32F746_PI13_FUNC_LCD_VSYNC 0x8d0f -#define STM32F746_PI13_FUNC_EVENTOUT 0x8d10 -#define STM32F746_PI13_FUNC_ANALOG 0x8d11 - -#define STM32F746_PI14_FUNC_GPIO 0x8e00 -#define STM32F746_PI14_FUNC_LCD_CLK 0x8e0f -#define STM32F746_PI14_FUNC_EVENTOUT 0x8e10 -#define STM32F746_PI14_FUNC_ANALOG 0x8e11 - -#define STM32F746_PI15_FUNC_GPIO 0x8f00 -#define STM32F746_PI15_FUNC_LCD_R0 0x8f0f -#define STM32F746_PI15_FUNC_EVENTOUT 0x8f10 -#define STM32F746_PI15_FUNC_ANALOG 0x8f11 - - -#define STM32F746_PJ0_FUNC_GPIO 0x9000 -#define STM32F746_PJ0_FUNC_LCD_R1 0x900f -#define STM32F746_PJ0_FUNC_EVENTOUT 0x9010 -#define STM32F746_PJ0_FUNC_ANALOG 0x9011 - -#define STM32F746_PJ1_FUNC_GPIO 0x9100 -#define STM32F746_PJ1_FUNC_LCD_R2 0x910f -#define STM32F746_PJ1_FUNC_EVENTOUT 0x9110 -#define STM32F746_PJ1_FUNC_ANALOG 0x9111 - -#define STM32F746_PJ2_FUNC_GPIO 0x9200 -#define STM32F746_PJ2_FUNC_LCD_R3 0x920f -#define STM32F746_PJ2_FUNC_EVENTOUT 0x9210 -#define STM32F746_PJ2_FUNC_ANALOG 0x9211 - -#define STM32F746_PJ3_FUNC_GPIO 0x9300 -#define STM32F746_PJ3_FUNC_LCD_R4 0x930f -#define STM32F746_PJ3_FUNC_EVENTOUT 0x9310 -#define STM32F746_PJ3_FUNC_ANALOG 0x9311 - -#define STM32F746_PJ4_FUNC_GPIO 0x9400 -#define STM32F746_PJ4_FUNC_LCD_R5 0x940f -#define STM32F746_PJ4_FUNC_EVENTOUT 0x9410 -#define STM32F746_PJ4_FUNC_ANALOG 0x9411 - -#define STM32F746_PJ5_FUNC_GPIO 0x9500 -#define STM32F746_PJ5_FUNC_LCD_R6 0x950f -#define STM32F746_PJ5_FUNC_EVENTOUT 0x9510 -#define STM32F746_PJ5_FUNC_ANALOG 0x9511 - -#define STM32F746_PJ6_FUNC_GPIO 0x9600 -#define STM32F746_PJ6_FUNC_LCD_R7 0x960f -#define STM32F746_PJ6_FUNC_EVENTOUT 0x9610 -#define STM32F746_PJ6_FUNC_ANALOG 0x9611 - -#define STM32F746_PJ7_FUNC_GPIO 0x9700 -#define STM32F746_PJ7_FUNC_LCD_G0 0x970f -#define STM32F746_PJ7_FUNC_EVENTOUT 0x9710 -#define STM32F746_PJ7_FUNC_ANALOG 0x9711 - -#define STM32F746_PJ8_FUNC_GPIO 0x9800 -#define STM32F746_PJ8_FUNC_LCD_G1 0x980f -#define STM32F746_PJ8_FUNC_EVENTOUT 0x9810 -#define STM32F746_PJ8_FUNC_ANALOG 0x9811 - -#define STM32F746_PJ9_FUNC_GPIO 0x9900 -#define STM32F746_PJ9_FUNC_LCD_G2 0x990f -#define STM32F746_PJ9_FUNC_EVENTOUT 0x9910 -#define STM32F746_PJ9_FUNC_ANALOG 0x9911 - -#define STM32F746_PJ10_FUNC_GPIO 0x9a00 -#define STM32F746_PJ10_FUNC_LCD_G3 0x9a0f -#define STM32F746_PJ10_FUNC_EVENTOUT 0x9a10 -#define STM32F746_PJ10_FUNC_ANALOG 0x9a11 - -#define STM32F746_PJ11_FUNC_GPIO 0x9b00 -#define STM32F746_PJ11_FUNC_LCD_G4 0x9b0f -#define STM32F746_PJ11_FUNC_EVENTOUT 0x9b10 -#define STM32F746_PJ11_FUNC_ANALOG 0x9b11 - -#define STM32F746_PJ12_FUNC_GPIO 0x9c00 -#define STM32F746_PJ12_FUNC_LCD_B0 0x9c0f -#define STM32F746_PJ12_FUNC_EVENTOUT 0x9c10 -#define STM32F746_PJ12_FUNC_ANALOG 0x9c11 - -#define STM32F746_PJ13_FUNC_GPIO 0x9d00 -#define STM32F746_PJ13_FUNC_LCD_B1 0x9d0f -#define STM32F746_PJ13_FUNC_EVENTOUT 0x9d10 -#define STM32F746_PJ13_FUNC_ANALOG 0x9d11 - -#define STM32F746_PJ14_FUNC_GPIO 0x9e00 -#define STM32F746_PJ14_FUNC_LCD_B2 0x9e0f -#define STM32F746_PJ14_FUNC_EVENTOUT 0x9e10 -#define STM32F746_PJ14_FUNC_ANALOG 0x9e11 - -#define STM32F746_PJ15_FUNC_GPIO 0x9f00 -#define STM32F746_PJ15_FUNC_LCD_B3 0x9f0f -#define STM32F746_PJ15_FUNC_EVENTOUT 0x9f10 -#define STM32F746_PJ15_FUNC_ANALOG 0x9f11 - - -#define STM32F746_PK0_FUNC_GPIO 0xa000 -#define STM32F746_PK0_FUNC_LCD_G5 0xa00f -#define STM32F746_PK0_FUNC_EVENTOUT 0xa010 -#define STM32F746_PK0_FUNC_ANALOG 0xa011 - -#define STM32F746_PK1_FUNC_GPIO 0xa100 -#define STM32F746_PK1_FUNC_LCD_G6 0xa10f -#define STM32F746_PK1_FUNC_EVENTOUT 0xa110 -#define STM32F746_PK1_FUNC_ANALOG 0xa111 - -#define STM32F746_PK2_FUNC_GPIO 0xa200 -#define STM32F746_PK2_FUNC_LCD_G7 0xa20f -#define STM32F746_PK2_FUNC_EVENTOUT 0xa210 -#define STM32F746_PK2_FUNC_ANALOG 0xa211 - -#define STM32F746_PK3_FUNC_GPIO 0xa300 -#define STM32F746_PK3_FUNC_LCD_B4 0xa30f -#define STM32F746_PK3_FUNC_EVENTOUT 0xa310 -#define STM32F746_PK3_FUNC_ANALOG 0xa311 - -#define STM32F746_PK4_FUNC_GPIO 0xa400 -#define STM32F746_PK4_FUNC_LCD_B5 0xa40f -#define STM32F746_PK4_FUNC_EVENTOUT 0xa410 -#define STM32F746_PK4_FUNC_ANALOG 0xa411 - -#define STM32F746_PK5_FUNC_GPIO 0xa500 -#define STM32F746_PK5_FUNC_LCD_B6 0xa50f -#define STM32F746_PK5_FUNC_EVENTOUT 0xa510 -#define STM32F746_PK5_FUNC_ANALOG 0xa511 - -#define STM32F746_PK6_FUNC_GPIO 0xa600 -#define STM32F746_PK6_FUNC_LCD_B7 0xa60f -#define STM32F746_PK6_FUNC_EVENTOUT 0xa610 -#define STM32F746_PK6_FUNC_ANALOG 0xa611 - -#define STM32F746_PK7_FUNC_GPIO 0xa700 -#define STM32F746_PK7_FUNC_LCD_DE 0xa70f -#define STM32F746_PK7_FUNC_EVENTOUT 0xa710 -#define STM32F746_PK7_FUNC_ANALOG 0xa711 - -#endif /* _DT_BINDINGS_STM32F746_PINFUNC_H */ diff --git a/include/dt-bindings/pinctrl/stm32h7-pinfunc.h b/include/dt-bindings/pinctrl/stm32h7-pinfunc.h deleted file mode 100644 index cb673b5e8e1e..000000000000 --- a/include/dt-bindings/pinctrl/stm32h7-pinfunc.h +++ /dev/null @@ -1,1612 +0,0 @@ -#ifndef _DT_BINDINGS_STM32H7_PINFUNC_H -#define _DT_BINDINGS_STM32H7_PINFUNC_H - -#define STM32H7_PA0_FUNC_GPIO 0x0 -#define STM32H7_PA0_FUNC_TIM2_CH1_TIM2_ETR 0x2 -#define STM32H7_PA0_FUNC_TIM5_CH1 0x3 -#define STM32H7_PA0_FUNC_TIM8_ETR 0x4 -#define STM32H7_PA0_FUNC_TIM15_BKIN 0x5 -#define STM32H7_PA0_FUNC_USART2_CTS_NSS 0x8 -#define STM32H7_PA0_FUNC_UART4_TX 0x9 -#define STM32H7_PA0_FUNC_SDMMC2_CMD 0xa -#define STM32H7_PA0_FUNC_SAI2_SD_B 0xb -#define STM32H7_PA0_FUNC_ETH_MII_CRS 0xc -#define STM32H7_PA0_FUNC_EVENTOUT 0x10 -#define STM32H7_PA0_FUNC_ANALOG 0x11 - -#define STM32H7_PA1_FUNC_GPIO 0x100 -#define STM32H7_PA1_FUNC_TIM2_CH2 0x102 -#define STM32H7_PA1_FUNC_TIM5_CH2 0x103 -#define STM32H7_PA1_FUNC_LPTIM3_OUT 0x104 -#define STM32H7_PA1_FUNC_TIM15_CH1N 0x105 -#define STM32H7_PA1_FUNC_USART2_RTS 0x108 -#define STM32H7_PA1_FUNC_UART4_RX 0x109 -#define STM32H7_PA1_FUNC_QUADSPI_BK1_IO3 0x10a -#define STM32H7_PA1_FUNC_SAI2_MCK_B 0x10b -#define STM32H7_PA1_FUNC_ETH_MII_RX_CLK_ETH_RMII_REF_CLK 0x10c -#define STM32H7_PA1_FUNC_LCD_R2 0x10f -#define STM32H7_PA1_FUNC_EVENTOUT 0x110 -#define STM32H7_PA1_FUNC_ANALOG 0x111 - -#define STM32H7_PA2_FUNC_GPIO 0x200 -#define STM32H7_PA2_FUNC_TIM2_CH3 0x202 -#define STM32H7_PA2_FUNC_TIM5_CH3 0x203 -#define STM32H7_PA2_FUNC_LPTIM4_OUT 0x204 -#define STM32H7_PA2_FUNC_TIM15_CH1 0x205 -#define STM32H7_PA2_FUNC_USART2_TX 0x208 -#define STM32H7_PA2_FUNC_SAI2_SCK_B 0x209 -#define STM32H7_PA2_FUNC_ETH_MDIO 0x20c -#define STM32H7_PA2_FUNC_MDIOS_MDIO 0x20d -#define STM32H7_PA2_FUNC_LCD_R1 0x20f -#define STM32H7_PA2_FUNC_EVENTOUT 0x210 -#define STM32H7_PA2_FUNC_ANALOG 0x211 - -#define STM32H7_PA3_FUNC_GPIO 0x300 -#define STM32H7_PA3_FUNC_TIM2_CH4 0x302 -#define STM32H7_PA3_FUNC_TIM5_CH4 0x303 -#define STM32H7_PA3_FUNC_LPTIM5_OUT 0x304 -#define STM32H7_PA3_FUNC_TIM15_CH2 0x305 -#define STM32H7_PA3_FUNC_USART2_RX 0x308 -#define STM32H7_PA3_FUNC_LCD_B2 0x30a -#define STM32H7_PA3_FUNC_OTG_HS_ULPI_D0 0x30b -#define STM32H7_PA3_FUNC_ETH_MII_COL 0x30c -#define STM32H7_PA3_FUNC_LCD_B5 0x30f -#define STM32H7_PA3_FUNC_EVENTOUT 0x310 -#define STM32H7_PA3_FUNC_ANALOG 0x311 - -#define STM32H7_PA4_FUNC_GPIO 0x400 -#define STM32H7_PA4_FUNC_TIM5_ETR 0x403 -#define STM32H7_PA4_FUNC_SPI1_NSS_I2S1_WS 0x406 -#define STM32H7_PA4_FUNC_SPI3_NSS_I2S3_WS 0x407 -#define STM32H7_PA4_FUNC_USART2_CK 0x408 -#define STM32H7_PA4_FUNC_SPI6_NSS 0x409 -#define STM32H7_PA4_FUNC_OTG_HS_SOF 0x40d -#define STM32H7_PA4_FUNC_DCMI_HSYNC 0x40e -#define STM32H7_PA4_FUNC_LCD_VSYNC 0x40f -#define STM32H7_PA4_FUNC_EVENTOUT 0x410 -#define STM32H7_PA4_FUNC_ANALOG 0x411 - -#define STM32H7_PA5_FUNC_GPIO 0x500 -#define STM32H7_PA5_FUNC_TIM2_CH1_TIM2_ETR 0x502 -#define STM32H7_PA5_FUNC_TIM8_CH1N 0x504 -#define STM32H7_PA5_FUNC_SPI1_SCK_I2S1_CK 0x506 -#define STM32H7_PA5_FUNC_SPI6_SCK 0x509 -#define STM32H7_PA5_FUNC_OTG_HS_ULPI_CK 0x50b -#define STM32H7_PA5_FUNC_LCD_R4 0x50f -#define STM32H7_PA5_FUNC_EVENTOUT 0x510 -#define STM32H7_PA5_FUNC_ANALOG 0x511 - -#define STM32H7_PA6_FUNC_GPIO 0x600 -#define STM32H7_PA6_FUNC_TIM1_BKIN 0x602 -#define STM32H7_PA6_FUNC_TIM3_CH1 0x603 -#define STM32H7_PA6_FUNC_TIM8_BKIN 0x604 -#define STM32H7_PA6_FUNC_SPI1_MISO_I2S1_SDI 0x606 -#define STM32H7_PA6_FUNC_SPI6_MISO 0x609 -#define STM32H7_PA6_FUNC_TIM13_CH1 0x60a -#define STM32H7_PA6_FUNC_TIM8_BKIN_COMP12 0x60b -#define STM32H7_PA6_FUNC_MDIOS_MDC 0x60c -#define STM32H7_PA6_FUNC_TIM1_BKIN_COMP12 0x60d -#define STM32H7_PA6_FUNC_DCMI_PIXCLK 0x60e -#define STM32H7_PA6_FUNC_LCD_G2 0x60f -#define STM32H7_PA6_FUNC_EVENTOUT 0x610 -#define STM32H7_PA6_FUNC_ANALOG 0x611 - -#define STM32H7_PA7_FUNC_GPIO 0x700 -#define STM32H7_PA7_FUNC_TIM1_CH1N 0x702 -#define STM32H7_PA7_FUNC_TIM3_CH2 0x703 -#define STM32H7_PA7_FUNC_TIM8_CH1N 0x704 -#define STM32H7_PA7_FUNC_SPI1_MOSI_I2S1_SDO 0x706 -#define STM32H7_PA7_FUNC_SPI6_MOSI 0x709 -#define STM32H7_PA7_FUNC_TIM14_CH1 0x70a -#define STM32H7_PA7_FUNC_ETH_MII_RX_DV_ETH_RMII_CRS_DV 0x70c -#define STM32H7_PA7_FUNC_FMC_SDNWE 0x70d -#define STM32H7_PA7_FUNC_EVENTOUT 0x710 -#define STM32H7_PA7_FUNC_ANALOG 0x711 - -#define STM32H7_PA8_FUNC_GPIO 0x800 -#define STM32H7_PA8_FUNC_MCO1 0x801 -#define STM32H7_PA8_FUNC_TIM1_CH1 0x802 -#define STM32H7_PA8_FUNC_HRTIM_CHB2 0x803 -#define STM32H7_PA8_FUNC_TIM8_BKIN2 0x804 -#define STM32H7_PA8_FUNC_I2C3_SCL 0x805 -#define STM32H7_PA8_FUNC_USART1_CK 0x808 -#define STM32H7_PA8_FUNC_OTG_FS_SOF 0x80b -#define STM32H7_PA8_FUNC_UART7_RX 0x80c -#define STM32H7_PA8_FUNC_TIM8_BKIN2_COMP12 0x80d -#define STM32H7_PA8_FUNC_LCD_B3 0x80e -#define STM32H7_PA8_FUNC_LCD_R6 0x80f -#define STM32H7_PA8_FUNC_EVENTOUT 0x810 -#define STM32H7_PA8_FUNC_ANALOG 0x811 - -#define STM32H7_PA9_FUNC_GPIO 0x900 -#define STM32H7_PA9_FUNC_TIM1_CH2 0x902 -#define STM32H7_PA9_FUNC_HRTIM_CHC1 0x903 -#define STM32H7_PA9_FUNC_LPUART1_TX 0x904 -#define STM32H7_PA9_FUNC_I2C3_SMBA 0x905 -#define STM32H7_PA9_FUNC_SPI2_SCK_I2S2_CK 0x906 -#define STM32H7_PA9_FUNC_USART1_TX 0x908 -#define STM32H7_PA9_FUNC_CAN1_RXFD 0x90a -#define STM32H7_PA9_FUNC_ETH_TX_ER 0x90c -#define STM32H7_PA9_FUNC_DCMI_D0 0x90e -#define STM32H7_PA9_FUNC_LCD_R5 0x90f -#define STM32H7_PA9_FUNC_EVENTOUT 0x910 -#define STM32H7_PA9_FUNC_ANALOG 0x911 - -#define STM32H7_PA10_FUNC_GPIO 0xa00 -#define STM32H7_PA10_FUNC_TIM1_CH3 0xa02 -#define STM32H7_PA10_FUNC_HRTIM_CHC2 0xa03 -#define STM32H7_PA10_FUNC_LPUART1_RX 0xa04 -#define STM32H7_PA10_FUNC_USART1_RX 0xa08 -#define STM32H7_PA10_FUNC_CAN1_TXFD 0xa0a -#define STM32H7_PA10_FUNC_OTG_FS_ID 0xa0b -#define STM32H7_PA10_FUNC_MDIOS_MDIO 0xa0c -#define STM32H7_PA10_FUNC_LCD_B4 0xa0d -#define STM32H7_PA10_FUNC_DCMI_D1 0xa0e -#define STM32H7_PA10_FUNC_LCD_B1 0xa0f -#define STM32H7_PA10_FUNC_EVENTOUT 0xa10 -#define STM32H7_PA10_FUNC_ANALOG 0xa11 - -#define STM32H7_PA11_FUNC_GPIO 0xb00 -#define STM32H7_PA11_FUNC_TIM1_CH4 0xb02 -#define STM32H7_PA11_FUNC_HRTIM_CHD1 0xb03 -#define STM32H7_PA11_FUNC_LPUART1_CTS 0xb04 -#define STM32H7_PA11_FUNC_SPI2_NSS_I2S2_WS 0xb06 -#define STM32H7_PA11_FUNC_UART4_RX 0xb07 -#define STM32H7_PA11_FUNC_USART1_CTS_NSS 0xb08 -#define STM32H7_PA11_FUNC_CAN1_RX 0xb0a -#define STM32H7_PA11_FUNC_OTG_FS_DM 0xb0b -#define STM32H7_PA11_FUNC_LCD_R4 0xb0f -#define STM32H7_PA11_FUNC_EVENTOUT 0xb10 -#define STM32H7_PA11_FUNC_ANALOG 0xb11 - -#define STM32H7_PA12_FUNC_GPIO 0xc00 -#define STM32H7_PA12_FUNC_TIM1_ETR 0xc02 -#define STM32H7_PA12_FUNC_HRTIM_CHD2 0xc03 -#define STM32H7_PA12_FUNC_LPUART1_RTS 0xc04 -#define STM32H7_PA12_FUNC_SPI2_SCK_I2S2_CK 0xc06 -#define STM32H7_PA12_FUNC_UART4_TX 0xc07 -#define STM32H7_PA12_FUNC_USART1_RTS 0xc08 -#define STM32H7_PA12_FUNC_SAI2_FS_B 0xc09 -#define STM32H7_PA12_FUNC_CAN1_TX 0xc0a -#define STM32H7_PA12_FUNC_OTG_FS_DP 0xc0b -#define STM32H7_PA12_FUNC_LCD_R5 0xc0f -#define STM32H7_PA12_FUNC_EVENTOUT 0xc10 -#define STM32H7_PA12_FUNC_ANALOG 0xc11 - -#define STM32H7_PA13_FUNC_GPIO 0xd00 -#define STM32H7_PA13_FUNC_JTMS_SWDIO 0xd01 -#define STM32H7_PA13_FUNC_EVENTOUT 0xd10 -#define STM32H7_PA13_FUNC_ANALOG 0xd11 - -#define STM32H7_PA14_FUNC_GPIO 0xe00 -#define STM32H7_PA14_FUNC_JTCK_SWCLK 0xe01 -#define STM32H7_PA14_FUNC_EVENTOUT 0xe10 -#define STM32H7_PA14_FUNC_ANALOG 0xe11 - -#define STM32H7_PA15_FUNC_GPIO 0xf00 -#define STM32H7_PA15_FUNC_JTDI 0xf01 -#define STM32H7_PA15_FUNC_TIM2_CH1_TIM2_ETR 0xf02 -#define STM32H7_PA15_FUNC_HRTIM_FLT1 0xf03 -#define STM32H7_PA15_FUNC_HDMI_CEC 0xf05 -#define STM32H7_PA15_FUNC_SPI1_NSS_I2S1_WS 0xf06 -#define STM32H7_PA15_FUNC_SPI3_NSS_I2S3_WS 0xf07 -#define STM32H7_PA15_FUNC_SPI6_NSS 0xf08 -#define STM32H7_PA15_FUNC_UART4_RTS 0xf09 -#define STM32H7_PA15_FUNC_UART7_TX 0xf0c -#define STM32H7_PA15_FUNC_DSI_TE 0xf0e -#define STM32H7_PA15_FUNC_EVENTOUT 0xf10 -#define STM32H7_PA15_FUNC_ANALOG 0xf11 - -#define STM32H7_PB0_FUNC_GPIO 0x1000 -#define STM32H7_PB0_FUNC_TIM1_CH2N 0x1002 -#define STM32H7_PB0_FUNC_TIM3_CH3 0x1003 -#define STM32H7_PB0_FUNC_TIM8_CH2N 0x1004 -#define STM32H7_PB0_FUNC_DFSDM_CKOUT 0x1007 -#define STM32H7_PB0_FUNC_UART4_CTS 0x1009 -#define STM32H7_PB0_FUNC_LCD_R3 0x100a -#define STM32H7_PB0_FUNC_OTG_HS_ULPI_D1 0x100b -#define STM32H7_PB0_FUNC_ETH_MII_RXD2 0x100c -#define STM32H7_PB0_FUNC_LCD_G1 0x100f -#define STM32H7_PB0_FUNC_EVENTOUT 0x1010 -#define STM32H7_PB0_FUNC_ANALOG 0x1011 - -#define STM32H7_PB1_FUNC_GPIO 0x1100 -#define STM32H7_PB1_FUNC_TIM1_CH3N 0x1102 -#define STM32H7_PB1_FUNC_TIM3_CH4 0x1103 -#define STM32H7_PB1_FUNC_TIM8_CH3N 0x1104 -#define STM32H7_PB1_FUNC_DFSDM_DATIN1 0x1107 -#define STM32H7_PB1_FUNC_LCD_R6 0x110a -#define STM32H7_PB1_FUNC_OTG_HS_ULPI_D2 0x110b -#define STM32H7_PB1_FUNC_ETH_MII_RXD3 0x110c -#define STM32H7_PB1_FUNC_LCD_G0 0x110f -#define STM32H7_PB1_FUNC_EVENTOUT 0x1110 -#define STM32H7_PB1_FUNC_ANALOG 0x1111 - -#define STM32H7_PB2_FUNC_GPIO 0x1200 -#define STM32H7_PB2_FUNC_SAI1_D1 0x1203 -#define STM32H7_PB2_FUNC_DFSDM_CKIN1 0x1205 -#define STM32H7_PB2_FUNC_SAI1_SD_A 0x1207 -#define STM32H7_PB2_FUNC_SPI3_MOSI_I2S3_SDO 0x1208 -#define STM32H7_PB2_FUNC_SAI4_SD_A 0x1209 -#define STM32H7_PB2_FUNC_QUADSPI_CLK 0x120a -#define STM32H7_PB2_FUNC_SAI4_D1 0x120b -#define STM32H7_PB2_FUNC_ETH_TX_ER 0x120c -#define STM32H7_PB2_FUNC_EVENTOUT 0x1210 -#define STM32H7_PB2_FUNC_ANALOG 0x1211 - -#define STM32H7_PB3_FUNC_GPIO 0x1300 -#define STM32H7_PB3_FUNC_JTDO_TRACESWO 0x1301 -#define STM32H7_PB3_FUNC_TIM2_CH2 0x1302 -#define STM32H7_PB3_FUNC_HRTIM_FLT4 0x1303 -#define STM32H7_PB3_FUNC_SPI1_SCK_I2S1_CK 0x1306 -#define STM32H7_PB3_FUNC_SPI3_SCK_I2S3_CK 0x1307 -#define STM32H7_PB3_FUNC_SPI6_SCK 0x1309 -#define STM32H7_PB3_FUNC_SDMMC2_D2 0x130a -#define STM32H7_PB3_FUNC_UART7_RX 0x130c -#define STM32H7_PB3_FUNC_EVENTOUT 0x1310 -#define STM32H7_PB3_FUNC_ANALOG 0x1311 - -#define STM32H7_PB4_FUNC_GPIO 0x1400 -#define STM32H7_PB4_FUNC_NJTRST 0x1401 -#define STM32H7_PB4_FUNC_TIM16_BKIN 0x1402 -#define STM32H7_PB4_FUNC_TIM3_CH1 0x1403 -#define STM32H7_PB4_FUNC_HRTIM_EEV6 0x1404 -#define STM32H7_PB4_FUNC_SPI1_MISO_I2S1_SDI 0x1406 -#define STM32H7_PB4_FUNC_SPI3_MISO_I2S3_SDI 0x1407 -#define STM32H7_PB4_FUNC_SPI2_NSS_I2S2_WS 0x1408 -#define STM32H7_PB4_FUNC_SPI6_MISO 0x1409 -#define STM32H7_PB4_FUNC_SDMMC2_D3 0x140a -#define STM32H7_PB4_FUNC_UART7_TX 0x140c -#define STM32H7_PB4_FUNC_EVENTOUT 0x1410 -#define STM32H7_PB4_FUNC_ANALOG 0x1411 - -#define STM32H7_PB5_FUNC_GPIO 0x1500 -#define STM32H7_PB5_FUNC_TIM17_BKIN 0x1502 -#define STM32H7_PB5_FUNC_TIM3_CH2 0x1503 -#define STM32H7_PB5_FUNC_HRTIM_EEV7 0x1504 -#define STM32H7_PB5_FUNC_I2C1_SMBA 0x1505 -#define STM32H7_PB5_FUNC_SPI1_MOSI_I2S1_SDO 0x1506 -#define STM32H7_PB5_FUNC_I2C4_SMBA 0x1507 -#define STM32H7_PB5_FUNC_SPI3_MOSI_I2S3_SDO 0x1508 -#define STM32H7_PB5_FUNC_SPI6_MOSI 0x1509 -#define STM32H7_PB5_FUNC_CAN2_RX 0x150a -#define STM32H7_PB5_FUNC_OTG_HS_ULPI_D7 0x150b -#define STM32H7_PB5_FUNC_ETH_PPS_OUT 0x150c -#define STM32H7_PB5_FUNC_FMC_SDCKE1 0x150d -#define STM32H7_PB5_FUNC_DCMI_D10 0x150e -#define STM32H7_PB5_FUNC_UART5_RX 0x150f -#define STM32H7_PB5_FUNC_EVENTOUT 0x1510 -#define STM32H7_PB5_FUNC_ANALOG 0x1511 - -#define STM32H7_PB6_FUNC_GPIO 0x1600 -#define STM32H7_PB6_FUNC_TIM16_CH1N 0x1602 -#define STM32H7_PB6_FUNC_TIM4_CH1 0x1603 -#define STM32H7_PB6_FUNC_HRTIM_EEV8 0x1604 -#define STM32H7_PB6_FUNC_I2C1_SCL 0x1605 -#define STM32H7_PB6_FUNC_HDMI_CEC 0x1606 -#define STM32H7_PB6_FUNC_I2C4_SCL 0x1607 -#define STM32H7_PB6_FUNC_USART1_TX 0x1608 -#define STM32H7_PB6_FUNC_LPUART1_TX 0x1609 -#define STM32H7_PB6_FUNC_CAN2_TX 0x160a -#define STM32H7_PB6_FUNC_QUADSPI_BK1_NCS 0x160b -#define STM32H7_PB6_FUNC_DFSDM_DATIN5 0x160c -#define STM32H7_PB6_FUNC_FMC_SDNE1 0x160d -#define STM32H7_PB6_FUNC_DCMI_D5 0x160e -#define STM32H7_PB6_FUNC_UART5_TX 0x160f -#define STM32H7_PB6_FUNC_EVENTOUT 0x1610 -#define STM32H7_PB6_FUNC_ANALOG 0x1611 - -#define STM32H7_PB7_FUNC_GPIO 0x1700 -#define STM32H7_PB7_FUNC_TIM17_CH1N 0x1702 -#define STM32H7_PB7_FUNC_TIM4_CH2 0x1703 -#define STM32H7_PB7_FUNC_HRTIM_EEV9 0x1704 -#define STM32H7_PB7_FUNC_I2C1_SDA 0x1705 -#define STM32H7_PB7_FUNC_I2C4_SDA 0x1707 -#define STM32H7_PB7_FUNC_USART1_RX 0x1708 -#define STM32H7_PB7_FUNC_LPUART1_RX 0x1709 -#define STM32H7_PB7_FUNC_CAN2_TXFD 0x170a -#define STM32H7_PB7_FUNC_DFSDM_CKIN5 0x170c -#define STM32H7_PB7_FUNC_FMC_NL 0x170d -#define STM32H7_PB7_FUNC_DCMI_VSYNC 0x170e -#define STM32H7_PB7_FUNC_EVENTOUT 0x1710 -#define STM32H7_PB7_FUNC_ANALOG 0x1711 - -#define STM32H7_PB8_FUNC_GPIO 0x1800 -#define STM32H7_PB8_FUNC_TIM16_CH1 0x1802 -#define STM32H7_PB8_FUNC_TIM4_CH3 0x1803 -#define STM32H7_PB8_FUNC_DFSDM_CKIN7 0x1804 -#define STM32H7_PB8_FUNC_I2C1_SCL 0x1805 -#define STM32H7_PB8_FUNC_I2C4_SCL 0x1807 -#define STM32H7_PB8_FUNC_SDMMC1_CKIN 0x1808 -#define STM32H7_PB8_FUNC_UART4_RX 0x1809 -#define STM32H7_PB8_FUNC_CAN1_RX 0x180a -#define STM32H7_PB8_FUNC_SDMMC2_D4 0x180b -#define STM32H7_PB8_FUNC_ETH_MII_TXD3 0x180c -#define STM32H7_PB8_FUNC_SDMMC1_D4 0x180d -#define STM32H7_PB8_FUNC_DCMI_D6 0x180e -#define STM32H7_PB8_FUNC_LCD_B6 0x180f -#define STM32H7_PB8_FUNC_EVENTOUT 0x1810 -#define STM32H7_PB8_FUNC_ANALOG 0x1811 - -#define STM32H7_PB9_FUNC_GPIO 0x1900 -#define STM32H7_PB9_FUNC_TIM17_CH1 0x1902 -#define STM32H7_PB9_FUNC_TIM4_CH4 0x1903 -#define STM32H7_PB9_FUNC_DFSDM_DATIN7 0x1904 -#define STM32H7_PB9_FUNC_I2C1_SDA 0x1905 -#define STM32H7_PB9_FUNC_SPI2_NSS_I2S2_WS 0x1906 -#define STM32H7_PB9_FUNC_I2C4_SDA 0x1907 -#define STM32H7_PB9_FUNC_SDMMC1_CDIR 0x1908 -#define STM32H7_PB9_FUNC_UART4_TX 0x1909 -#define STM32H7_PB9_FUNC_CAN1_TX 0x190a -#define STM32H7_PB9_FUNC_SDMMC2_D5 0x190b -#define STM32H7_PB9_FUNC_I2C4_SMBA 0x190c -#define STM32H7_PB9_FUNC_SDMMC1_D5 0x190d -#define STM32H7_PB9_FUNC_DCMI_D7 0x190e -#define STM32H7_PB9_FUNC_LCD_B7 0x190f -#define STM32H7_PB9_FUNC_EVENTOUT 0x1910 -#define STM32H7_PB9_FUNC_ANALOG 0x1911 - -#define STM32H7_PB10_FUNC_GPIO 0x1a00 -#define STM32H7_PB10_FUNC_TIM2_CH3 0x1a02 -#define STM32H7_PB10_FUNC_HRTIM_SCOUT 0x1a03 -#define STM32H7_PB10_FUNC_LPTIM2_IN1 0x1a04 -#define STM32H7_PB10_FUNC_I2C2_SCL 0x1a05 -#define STM32H7_PB10_FUNC_SPI2_SCK_I2S2_CK 0x1a06 -#define STM32H7_PB10_FUNC_DFSDM_DATIN7 0x1a07 -#define STM32H7_PB10_FUNC_USART3_TX 0x1a08 -#define STM32H7_PB10_FUNC_QUADSPI_BK1_NCS 0x1a0a -#define STM32H7_PB10_FUNC_OTG_HS_ULPI_D3 0x1a0b -#define STM32H7_PB10_FUNC_ETH_MII_RX_ER 0x1a0c -#define STM32H7_PB10_FUNC_LCD_G4 0x1a0f -#define STM32H7_PB10_FUNC_EVENTOUT 0x1a10 -#define STM32H7_PB10_FUNC_ANALOG 0x1a11 - -#define STM32H7_PB11_FUNC_GPIO 0x1b00 -#define STM32H7_PB11_FUNC_TIM2_CH4 0x1b02 -#define STM32H7_PB11_FUNC_HRTIM_SCIN 0x1b03 -#define STM32H7_PB11_FUNC_LPTIM2_ETR 0x1b04 -#define STM32H7_PB11_FUNC_I2C2_SDA 0x1b05 -#define STM32H7_PB11_FUNC_DFSDM_CKIN7 0x1b07 -#define STM32H7_PB11_FUNC_USART3_RX 0x1b08 -#define STM32H7_PB11_FUNC_OTG_HS_ULPI_D4 0x1b0b -#define STM32H7_PB11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN 0x1b0c -#define STM32H7_PB11_FUNC_DSI_TE 0x1b0e -#define STM32H7_PB11_FUNC_LCD_G5 0x1b0f -#define STM32H7_PB11_FUNC_EVENTOUT 0x1b10 -#define STM32H7_PB11_FUNC_ANALOG 0x1b11 - -#define STM32H7_PB12_FUNC_GPIO 0x1c00 -#define STM32H7_PB12_FUNC_TIM1_BKIN 0x1c02 -#define STM32H7_PB12_FUNC_I2C2_SMBA 0x1c05 -#define STM32H7_PB12_FUNC_SPI2_NSS_I2S2_WS 0x1c06 -#define STM32H7_PB12_FUNC_DFSDM_DATIN1 0x1c07 -#define STM32H7_PB12_FUNC_USART3_CK 0x1c08 -#define STM32H7_PB12_FUNC_CAN2_RX 0x1c0a -#define STM32H7_PB12_FUNC_OTG_HS_ULPI_D5 0x1c0b -#define STM32H7_PB12_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0 0x1c0c -#define STM32H7_PB12_FUNC_OTG_HS_ID 0x1c0d -#define STM32H7_PB12_FUNC_TIM1_BKIN_COMP12 0x1c0e -#define STM32H7_PB12_FUNC_UART5_RX 0x1c0f -#define STM32H7_PB12_FUNC_EVENTOUT 0x1c10 -#define STM32H7_PB12_FUNC_ANALOG 0x1c11 - -#define STM32H7_PB13_FUNC_GPIO 0x1d00 -#define STM32H7_PB13_FUNC_TIM1_CH1N 0x1d02 -#define STM32H7_PB13_FUNC_LPTIM2_OUT 0x1d04 -#define STM32H7_PB13_FUNC_SPI2_SCK_I2S2_CK 0x1d06 -#define STM32H7_PB13_FUNC_DFSDM_CKIN1 0x1d07 -#define STM32H7_PB13_FUNC_USART3_CTS_NSS 0x1d08 -#define STM32H7_PB13_FUNC_CAN2_TX 0x1d0a -#define STM32H7_PB13_FUNC_OTG_HS_ULPI_D6 0x1d0b -#define STM32H7_PB13_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1 0x1d0c -#define STM32H7_PB13_FUNC_UART5_TX 0x1d0f -#define STM32H7_PB13_FUNC_EVENTOUT 0x1d10 -#define STM32H7_PB13_FUNC_ANALOG 0x1d11 - -#define STM32H7_PB14_FUNC_GPIO 0x1e00 -#define STM32H7_PB14_FUNC_TIM1_CH2N 0x1e02 -#define STM32H7_PB14_FUNC_TIM8_CH2N 0x1e04 -#define STM32H7_PB14_FUNC_USART1_TX 0x1e05 -#define STM32H7_PB14_FUNC_SPI2_MISO_I2S2_SDI 0x1e06 -#define STM32H7_PB14_FUNC_DFSDM_DATIN2 0x1e07 -#define STM32H7_PB14_FUNC_USART3_RTS 0x1e08 -#define STM32H7_PB14_FUNC_UART4_RTS 0x1e09 -#define STM32H7_PB14_FUNC_SDMMC2_D0 0x1e0a -#define STM32H7_PB14_FUNC_OTG_HS_DM 0x1e0d -#define STM32H7_PB14_FUNC_EVENTOUT 0x1e10 -#define STM32H7_PB14_FUNC_ANALOG 0x1e11 - -#define STM32H7_PB15_FUNC_GPIO 0x1f00 -#define STM32H7_PB15_FUNC_RTC_REFIN 0x1f01 -#define STM32H7_PB15_FUNC_TIM1_CH3N 0x1f02 -#define STM32H7_PB15_FUNC_TIM8_CH3N 0x1f04 -#define STM32H7_PB15_FUNC_USART1_RX 0x1f05 -#define STM32H7_PB15_FUNC_SPI2_MOSI_I2S2_SDO 0x1f06 -#define STM32H7_PB15_FUNC_DFSDM_CKIN2 0x1f07 -#define STM32H7_PB15_FUNC_UART4_CTS 0x1f09 -#define STM32H7_PB15_FUNC_SDMMC2_D1 0x1f0a -#define STM32H7_PB15_FUNC_OTG_HS_DP 0x1f0d -#define STM32H7_PB15_FUNC_EVENTOUT 0x1f10 -#define STM32H7_PB15_FUNC_ANALOG 0x1f11 - -#define STM32H7_PC0_FUNC_GPIO 0x2000 -#define STM32H7_PC0_FUNC_DFSDM_CKIN0 0x2004 -#define STM32H7_PC0_FUNC_DFSDM_DATIN4 0x2007 -#define STM32H7_PC0_FUNC_SAI2_FS_B 0x2009 -#define STM32H7_PC0_FUNC_OTG_HS_ULPI_STP 0x200b -#define STM32H7_PC0_FUNC_FMC_SDNWE 0x200d -#define STM32H7_PC0_FUNC_LCD_R5 0x200f -#define STM32H7_PC0_FUNC_EVENTOUT 0x2010 -#define STM32H7_PC0_FUNC_ANALOG 0x2011 - -#define STM32H7_PC1_FUNC_GPIO 0x2100 -#define STM32H7_PC1_FUNC_TRACED0 0x2101 -#define STM32H7_PC1_FUNC_SAI1_D1 0x2103 -#define STM32H7_PC1_FUNC_DFSDM_DATIN0 0x2104 -#define STM32H7_PC1_FUNC_DFSDM_CKIN4 0x2105 -#define STM32H7_PC1_FUNC_SPI2_MOSI_I2S2_SDO 0x2106 -#define STM32H7_PC1_FUNC_SAI1_SD_A 0x2107 -#define STM32H7_PC1_FUNC_SAI4_SD_A 0x2109 -#define STM32H7_PC1_FUNC_SDMMC2_CK 0x210a -#define STM32H7_PC1_FUNC_SAI4_D1 0x210b -#define STM32H7_PC1_FUNC_ETH_MDC 0x210c -#define STM32H7_PC1_FUNC_MDIOS_MDC 0x210d -#define STM32H7_PC1_FUNC_EVENTOUT 0x2110 -#define STM32H7_PC1_FUNC_ANALOG 0x2111 - -#define STM32H7_PC2_FUNC_GPIO 0x2200 -#define STM32H7_PC2_FUNC_DFSDM_CKIN1 0x2204 -#define STM32H7_PC2_FUNC_SPI2_MISO_I2S2_SDI 0x2206 -#define STM32H7_PC2_FUNC_DFSDM_CKOUT 0x2207 -#define STM32H7_PC2_FUNC_OTG_HS_ULPI_DIR 0x220b -#define STM32H7_PC2_FUNC_ETH_MII_TXD2 0x220c -#define STM32H7_PC2_FUNC_FMC_SDNE0 0x220d -#define STM32H7_PC2_FUNC_EVENTOUT 0x2210 -#define STM32H7_PC2_FUNC_ANALOG 0x2211 - -#define STM32H7_PC3_FUNC_GPIO 0x2300 -#define STM32H7_PC3_FUNC_DFSDM_DATIN1 0x2304 -#define STM32H7_PC3_FUNC_SPI2_MOSI_I2S2_SDO 0x2306 -#define STM32H7_PC3_FUNC_OTG_HS_ULPI_NXT 0x230b -#define STM32H7_PC3_FUNC_ETH_MII_TX_CLK 0x230c -#define STM32H7_PC3_FUNC_FMC_SDCKE0 0x230d -#define STM32H7_PC3_FUNC_EVENTOUT 0x2310 -#define STM32H7_PC3_FUNC_ANALOG 0x2311 - -#define STM32H7_PC4_FUNC_GPIO 0x2400 -#define STM32H7_PC4_FUNC_DFSDM_CKIN2 0x2404 -#define STM32H7_PC4_FUNC_I2S1_MCK 0x2406 -#define STM32H7_PC4_FUNC_SPDIFRX_IN2 0x240a -#define STM32H7_PC4_FUNC_ETH_MII_RXD0_ETH_RMII_RXD0 0x240c -#define STM32H7_PC4_FUNC_FMC_SDNE0 0x240d -#define STM32H7_PC4_FUNC_EVENTOUT 0x2410 -#define STM32H7_PC4_FUNC_ANALOG 0x2411 - -#define STM32H7_PC5_FUNC_GPIO 0x2500 -#define STM32H7_PC5_FUNC_SAI1_D3 0x2503 -#define STM32H7_PC5_FUNC_DFSDM_DATIN2 0x2504 -#define STM32H7_PC5_FUNC_SPDIFRX_IN3 0x250a -#define STM32H7_PC5_FUNC_SAI4_D3 0x250b -#define STM32H7_PC5_FUNC_ETH_MII_RXD1_ETH_RMII_RXD1 0x250c -#define STM32H7_PC5_FUNC_FMC_SDCKE0 0x250d -#define STM32H7_PC5_FUNC_COMP_1_OUT 0x250e -#define STM32H7_PC5_FUNC_EVENTOUT 0x2510 -#define STM32H7_PC5_FUNC_ANALOG 0x2511 - -#define STM32H7_PC6_FUNC_GPIO 0x2600 -#define STM32H7_PC6_FUNC_HRTIM_CHA1 0x2602 -#define STM32H7_PC6_FUNC_TIM3_CH1 0x2603 -#define STM32H7_PC6_FUNC_TIM8_CH1 0x2604 -#define STM32H7_PC6_FUNC_DFSDM_CKIN3 0x2605 -#define STM32H7_PC6_FUNC_I2S2_MCK 0x2606 -#define STM32H7_PC6_FUNC_USART6_TX 0x2608 -#define STM32H7_PC6_FUNC_SDMMC1_D0DIR 0x2609 -#define STM32H7_PC6_FUNC_FMC_NWAIT 0x260a -#define STM32H7_PC6_FUNC_SDMMC2_D6 0x260b -#define STM32H7_PC6_FUNC_SDMMC1_D6 0x260d -#define STM32H7_PC6_FUNC_DCMI_D0 0x260e -#define STM32H7_PC6_FUNC_LCD_HSYNC 0x260f -#define STM32H7_PC6_FUNC_EVENTOUT 0x2610 -#define STM32H7_PC6_FUNC_ANALOG 0x2611 - -#define STM32H7_PC7_FUNC_GPIO 0x2700 -#define STM32H7_PC7_FUNC_TRGIO 0x2701 -#define STM32H7_PC7_FUNC_HRTIM_CHA2 0x2702 -#define STM32H7_PC7_FUNC_TIM3_CH2 0x2703 -#define STM32H7_PC7_FUNC_TIM8_CH2 0x2704 -#define STM32H7_PC7_FUNC_DFSDM_DATIN3 0x2705 -#define STM32H7_PC7_FUNC_I2S3_MCK 0x2707 -#define STM32H7_PC7_FUNC_USART6_RX 0x2708 -#define STM32H7_PC7_FUNC_SDMMC1_D123DIR 0x2709 -#define STM32H7_PC7_FUNC_FMC_NE1 0x270a -#define STM32H7_PC7_FUNC_SDMMC2_D7 0x270b -#define STM32H7_PC7_FUNC_SWPMI_TX 0x270c -#define STM32H7_PC7_FUNC_SDMMC1_D7 0x270d -#define STM32H7_PC7_FUNC_DCMI_D1 0x270e -#define STM32H7_PC7_FUNC_LCD_G6 0x270f -#define STM32H7_PC7_FUNC_EVENTOUT 0x2710 -#define STM32H7_PC7_FUNC_ANALOG 0x2711 - -#define STM32H7_PC8_FUNC_GPIO 0x2800 -#define STM32H7_PC8_FUNC_TRACED1 0x2801 -#define STM32H7_PC8_FUNC_HRTIM_CHB1 0x2802 -#define STM32H7_PC8_FUNC_TIM3_CH3 0x2803 -#define STM32H7_PC8_FUNC_TIM8_CH3 0x2804 -#define STM32H7_PC8_FUNC_USART6_CK 0x2808 -#define STM32H7_PC8_FUNC_UART5_RTS 0x2809 -#define STM32H7_PC8_FUNC_FMC_NE2_FMC_NCE 0x280a -#define STM32H7_PC8_FUNC_SWPMI_RX 0x280c -#define STM32H7_PC8_FUNC_SDMMC1_D0 0x280d -#define STM32H7_PC8_FUNC_DCMI_D2 0x280e -#define STM32H7_PC8_FUNC_EVENTOUT 0x2810 -#define STM32H7_PC8_FUNC_ANALOG 0x2811 - -#define STM32H7_PC9_FUNC_GPIO 0x2900 -#define STM32H7_PC9_FUNC_MCO2 0x2901 -#define STM32H7_PC9_FUNC_TIM3_CH4 0x2903 -#define STM32H7_PC9_FUNC_TIM8_CH4 0x2904 -#define STM32H7_PC9_FUNC_I2C3_SDA 0x2905 -#define STM32H7_PC9_FUNC_I2S_CKIN 0x2906 -#define STM32H7_PC9_FUNC_UART5_CTS 0x2909 -#define STM32H7_PC9_FUNC_QUADSPI_BK1_IO0 0x290a -#define STM32H7_PC9_FUNC_LCD_G3 0x290b -#define STM32H7_PC9_FUNC_SWPMI_SUSPEND 0x290c -#define STM32H7_PC9_FUNC_SDMMC1_D1 0x290d -#define STM32H7_PC9_FUNC_DCMI_D3 0x290e -#define STM32H7_PC9_FUNC_LCD_B2 0x290f -#define STM32H7_PC9_FUNC_EVENTOUT 0x2910 -#define STM32H7_PC9_FUNC_ANALOG 0x2911 - -#define STM32H7_PC10_FUNC_GPIO 0x2a00 -#define STM32H7_PC10_FUNC_HRTIM_EEV1 0x2a03 -#define STM32H7_PC10_FUNC_DFSDM_CKIN5 0x2a04 -#define STM32H7_PC10_FUNC_SPI3_SCK_I2S3_CK 0x2a07 -#define STM32H7_PC10_FUNC_USART3_TX 0x2a08 -#define STM32H7_PC10_FUNC_UART4_TX 0x2a09 -#define STM32H7_PC10_FUNC_QUADSPI_BK1_IO1 0x2a0a -#define STM32H7_PC10_FUNC_SDMMC1_D2 0x2a0d -#define STM32H7_PC10_FUNC_DCMI_D8 0x2a0e -#define STM32H7_PC10_FUNC_LCD_R2 0x2a0f -#define STM32H7_PC10_FUNC_EVENTOUT 0x2a10 -#define STM32H7_PC10_FUNC_ANALOG 0x2a11 - -#define STM32H7_PC11_FUNC_GPIO 0x2b00 -#define STM32H7_PC11_FUNC_HRTIM_FLT2 0x2b03 -#define STM32H7_PC11_FUNC_DFSDM_DATIN5 0x2b04 -#define STM32H7_PC11_FUNC_SPI3_MISO_I2S3_SDI 0x2b07 -#define STM32H7_PC11_FUNC_USART3_RX 0x2b08 -#define STM32H7_PC11_FUNC_UART4_RX 0x2b09 -#define STM32H7_PC11_FUNC_QUADSPI_BK2_NCS 0x2b0a -#define STM32H7_PC11_FUNC_SDMMC1_D3 0x2b0d -#define STM32H7_PC11_FUNC_DCMI_D4 0x2b0e -#define STM32H7_PC11_FUNC_EVENTOUT 0x2b10 -#define STM32H7_PC11_FUNC_ANALOG 0x2b11 - -#define STM32H7_PC12_FUNC_GPIO 0x2c00 -#define STM32H7_PC12_FUNC_TRACED3 0x2c01 -#define STM32H7_PC12_FUNC_HRTIM_EEV2 0x2c03 -#define STM32H7_PC12_FUNC_SPI3_MOSI_I2S3_SDO 0x2c07 -#define STM32H7_PC12_FUNC_USART3_CK 0x2c08 -#define STM32H7_PC12_FUNC_UART5_TX 0x2c09 -#define STM32H7_PC12_FUNC_SDMMC1_CK 0x2c0d -#define STM32H7_PC12_FUNC_DCMI_D9 0x2c0e -#define STM32H7_PC12_FUNC_EVENTOUT 0x2c10 -#define STM32H7_PC12_FUNC_ANALOG 0x2c11 - -#define STM32H7_PC13_FUNC_GPIO 0x2d00 -#define STM32H7_PC13_FUNC_EVENTOUT 0x2d10 -#define STM32H7_PC13_FUNC_ANALOG 0x2d11 - -#define STM32H7_PC14_FUNC_GPIO 0x2e00 -#define STM32H7_PC14_FUNC_EVENTOUT 0x2e10 -#define STM32H7_PC14_FUNC_ANALOG 0x2e11 - -#define STM32H7_PC15_FUNC_GPIO 0x2f00 -#define STM32H7_PC15_FUNC_EVENTOUT 0x2f10 -#define STM32H7_PC15_FUNC_ANALOG 0x2f11 - -#define STM32H7_PD0_FUNC_GPIO 0x3000 -#define STM32H7_PD0_FUNC_DFSDM_CKIN6 0x3004 -#define STM32H7_PD0_FUNC_SAI3_SCK_A 0x3007 -#define STM32H7_PD0_FUNC_UART4_RX 0x3009 -#define STM32H7_PD0_FUNC_CAN1_RX 0x300a -#define STM32H7_PD0_FUNC_FMC_D2_FMC_DA2 0x300d -#define STM32H7_PD0_FUNC_EVENTOUT 0x3010 -#define STM32H7_PD0_FUNC_ANALOG 0x3011 - -#define STM32H7_PD1_FUNC_GPIO 0x3100 -#define STM32H7_PD1_FUNC_DFSDM_DATIN6 0x3104 -#define STM32H7_PD1_FUNC_SAI3_SD_A 0x3107 -#define STM32H7_PD1_FUNC_UART4_TX 0x3109 -#define STM32H7_PD1_FUNC_CAN1_TX 0x310a -#define STM32H7_PD1_FUNC_FMC_D3_FMC_DA3 0x310d -#define STM32H7_PD1_FUNC_EVENTOUT 0x3110 -#define STM32H7_PD1_FUNC_ANALOG 0x3111 - -#define STM32H7_PD2_FUNC_GPIO 0x3200 -#define STM32H7_PD2_FUNC_TRACED2 0x3201 -#define STM32H7_PD2_FUNC_TIM3_ETR 0x3203 -#define STM32H7_PD2_FUNC_UART5_RX 0x3209 -#define STM32H7_PD2_FUNC_SDMMC1_CMD 0x320d -#define STM32H7_PD2_FUNC_DCMI_D11 0x320e -#define STM32H7_PD2_FUNC_EVENTOUT 0x3210 -#define STM32H7_PD2_FUNC_ANALOG 0x3211 - -#define STM32H7_PD3_FUNC_GPIO 0x3300 -#define STM32H7_PD3_FUNC_DFSDM_CKOUT 0x3304 -#define STM32H7_PD3_FUNC_SPI2_SCK_I2S2_CK 0x3306 -#define STM32H7_PD3_FUNC_USART2_CTS_NSS 0x3308 -#define STM32H7_PD3_FUNC_FMC_CLK 0x330d -#define STM32H7_PD3_FUNC_DCMI_D5 0x330e -#define STM32H7_PD3_FUNC_LCD_G7 0x330f -#define STM32H7_PD3_FUNC_EVENTOUT 0x3310 -#define STM32H7_PD3_FUNC_ANALOG 0x3311 - -#define STM32H7_PD4_FUNC_GPIO 0x3400 -#define STM32H7_PD4_FUNC_HRTIM_FLT3 0x3403 -#define STM32H7_PD4_FUNC_SAI3_FS_A 0x3407 -#define STM32H7_PD4_FUNC_USART2_RTS 0x3408 -#define STM32H7_PD4_FUNC_CAN1_RXFD 0x340a -#define STM32H7_PD4_FUNC_FMC_NOE 0x340d -#define STM32H7_PD4_FUNC_EVENTOUT 0x3410 -#define STM32H7_PD4_FUNC_ANALOG 0x3411 - -#define STM32H7_PD5_FUNC_GPIO 0x3500 -#define STM32H7_PD5_FUNC_HRTIM_EEV3 0x3503 -#define STM32H7_PD5_FUNC_USART2_TX 0x3508 -#define STM32H7_PD5_FUNC_CAN1_TXFD 0x350a -#define STM32H7_PD5_FUNC_FMC_NWE 0x350d -#define STM32H7_PD5_FUNC_EVENTOUT 0x3510 -#define STM32H7_PD5_FUNC_ANALOG 0x3511 - -#define STM32H7_PD6_FUNC_GPIO 0x3600 -#define STM32H7_PD6_FUNC_SAI1_D1 0x3603 -#define STM32H7_PD6_FUNC_DFSDM_CKIN4 0x3604 -#define STM32H7_PD6_FUNC_DFSDM_DATIN1 0x3605 -#define STM32H7_PD6_FUNC_SPI3_MOSI_I2S3_SDO 0x3606 -#define STM32H7_PD6_FUNC_SAI1_SD_A 0x3607 -#define STM32H7_PD6_FUNC_USART2_RX 0x3608 -#define STM32H7_PD6_FUNC_SAI4_SD_A 0x3609 -#define STM32H7_PD6_FUNC_CAN2_RXFD 0x360a -#define STM32H7_PD6_FUNC_SAI4_D1 0x360b -#define STM32H7_PD6_FUNC_SDMMC2_CK 0x360c -#define STM32H7_PD6_FUNC_FMC_NWAIT 0x360d -#define STM32H7_PD6_FUNC_DCMI_D10 0x360e -#define STM32H7_PD6_FUNC_LCD_B2 0x360f -#define STM32H7_PD6_FUNC_EVENTOUT 0x3610 -#define STM32H7_PD6_FUNC_ANALOG 0x3611 - -#define STM32H7_PD7_FUNC_GPIO 0x3700 -#define STM32H7_PD7_FUNC_DFSDM_DATIN4 0x3704 -#define STM32H7_PD7_FUNC_SPI1_MOSI_I2S1_SDO 0x3706 -#define STM32H7_PD7_FUNC_DFSDM_CKIN1 0x3707 -#define STM32H7_PD7_FUNC_USART2_CK 0x3708 -#define STM32H7_PD7_FUNC_SPDIFRX_IN0 0x370a -#define STM32H7_PD7_FUNC_SDMMC2_CMD 0x370c -#define STM32H7_PD7_FUNC_FMC_NE1 0x370d -#define STM32H7_PD7_FUNC_EVENTOUT 0x3710 -#define STM32H7_PD7_FUNC_ANALOG 0x3711 - -#define STM32H7_PD8_FUNC_GPIO 0x3800 -#define STM32H7_PD8_FUNC_DFSDM_CKIN3 0x3804 -#define STM32H7_PD8_FUNC_SAI3_SCK_B 0x3807 -#define STM32H7_PD8_FUNC_USART3_TX 0x3808 -#define STM32H7_PD8_FUNC_SPDIFRX_IN1 0x380a -#define STM32H7_PD8_FUNC_FMC_D13_FMC_DA13 0x380d -#define STM32H7_PD8_FUNC_EVENTOUT 0x3810 -#define STM32H7_PD8_FUNC_ANALOG 0x3811 - -#define STM32H7_PD9_FUNC_GPIO 0x3900 -#define STM32H7_PD9_FUNC_DFSDM_DATIN3 0x3904 -#define STM32H7_PD9_FUNC_SAI3_SD_B 0x3907 -#define STM32H7_PD9_FUNC_USART3_RX 0x3908 -#define STM32H7_PD9_FUNC_CAN2_RXFD 0x390a -#define STM32H7_PD9_FUNC_FMC_D14_FMC_DA14 0x390d -#define STM32H7_PD9_FUNC_EVENTOUT 0x3910 -#define STM32H7_PD9_FUNC_ANALOG 0x3911 - -#define STM32H7_PD10_FUNC_GPIO 0x3a00 -#define STM32H7_PD10_FUNC_DFSDM_CKOUT 0x3a04 -#define STM32H7_PD10_FUNC_SAI3_FS_B 0x3a07 -#define STM32H7_PD10_FUNC_USART3_CK 0x3a08 -#define STM32H7_PD10_FUNC_CAN2_TXFD 0x3a0a -#define STM32H7_PD10_FUNC_FMC_D15_FMC_DA15 0x3a0d -#define STM32H7_PD10_FUNC_LCD_B3 0x3a0f -#define STM32H7_PD10_FUNC_EVENTOUT 0x3a10 -#define STM32H7_PD10_FUNC_ANALOG 0x3a11 - -#define STM32H7_PD11_FUNC_GPIO 0x3b00 -#define STM32H7_PD11_FUNC_LPTIM2_IN2 0x3b04 -#define STM32H7_PD11_FUNC_I2C4_SMBA 0x3b05 -#define STM32H7_PD11_FUNC_USART3_CTS_NSS 0x3b08 -#define STM32H7_PD11_FUNC_QUADSPI_BK1_IO0 0x3b0a -#define STM32H7_PD11_FUNC_SAI2_SD_A 0x3b0b -#define STM32H7_PD11_FUNC_FMC_A16 0x3b0d -#define STM32H7_PD11_FUNC_EVENTOUT 0x3b10 -#define STM32H7_PD11_FUNC_ANALOG 0x3b11 - -#define STM32H7_PD12_FUNC_GPIO 0x3c00 -#define STM32H7_PD12_FUNC_LPTIM1_IN1 0x3c02 -#define STM32H7_PD12_FUNC_TIM4_CH1 0x3c03 -#define STM32H7_PD12_FUNC_LPTIM2_IN1 0x3c04 -#define STM32H7_PD12_FUNC_I2C4_SCL 0x3c05 -#define STM32H7_PD12_FUNC_USART3_RTS 0x3c08 -#define STM32H7_PD12_FUNC_QUADSPI_BK1_IO1 0x3c0a -#define STM32H7_PD12_FUNC_SAI2_FS_A 0x3c0b -#define STM32H7_PD12_FUNC_FMC_A17 0x3c0d -#define STM32H7_PD12_FUNC_EVENTOUT 0x3c10 -#define STM32H7_PD12_FUNC_ANALOG 0x3c11 - -#define STM32H7_PD13_FUNC_GPIO 0x3d00 -#define STM32H7_PD13_FUNC_LPTIM1_OUT 0x3d02 -#define STM32H7_PD13_FUNC_TIM4_CH2 0x3d03 -#define STM32H7_PD13_FUNC_I2C4_SDA 0x3d05 -#define STM32H7_PD13_FUNC_QUADSPI_BK1_IO3 0x3d0a -#define STM32H7_PD13_FUNC_SAI2_SCK_A 0x3d0b -#define STM32H7_PD13_FUNC_FMC_A18 0x3d0d -#define STM32H7_PD13_FUNC_EVENTOUT 0x3d10 -#define STM32H7_PD13_FUNC_ANALOG 0x3d11 - -#define STM32H7_PD14_FUNC_GPIO 0x3e00 -#define STM32H7_PD14_FUNC_TIM4_CH3 0x3e03 -#define STM32H7_PD14_FUNC_SAI3_MCLK_B 0x3e07 -#define STM32H7_PD14_FUNC_UART8_CTS 0x3e09 -#define STM32H7_PD14_FUNC_FMC_D0_FMC_DA0 0x3e0d -#define STM32H7_PD14_FUNC_EVENTOUT 0x3e10 -#define STM32H7_PD14_FUNC_ANALOG 0x3e11 - -#define STM32H7_PD15_FUNC_GPIO 0x3f00 -#define STM32H7_PD15_FUNC_TIM4_CH4 0x3f03 -#define STM32H7_PD15_FUNC_SAI3_MCLK_A 0x3f07 -#define STM32H7_PD15_FUNC_UART8_RTS 0x3f09 -#define STM32H7_PD15_FUNC_FMC_D1_FMC_DA1 0x3f0d -#define STM32H7_PD15_FUNC_EVENTOUT 0x3f10 -#define STM32H7_PD15_FUNC_ANALOG 0x3f11 - -#define STM32H7_PE0_FUNC_GPIO 0x4000 -#define STM32H7_PE0_FUNC_LPTIM1_ETR 0x4002 -#define STM32H7_PE0_FUNC_TIM4_ETR 0x4003 -#define STM32H7_PE0_FUNC_HRTIM_SCIN 0x4004 -#define STM32H7_PE0_FUNC_LPTIM2_ETR 0x4005 -#define STM32H7_PE0_FUNC_UART8_RX 0x4009 -#define STM32H7_PE0_FUNC_CAN1_RXFD 0x400a -#define STM32H7_PE0_FUNC_SAI2_MCK_A 0x400b -#define STM32H7_PE0_FUNC_FMC_NBL0 0x400d -#define STM32H7_PE0_FUNC_DCMI_D2 0x400e -#define STM32H7_PE0_FUNC_EVENTOUT 0x4010 -#define STM32H7_PE0_FUNC_ANALOG 0x4011 - -#define STM32H7_PE1_FUNC_GPIO 0x4100 -#define STM32H7_PE1_FUNC_LPTIM1_IN2 0x4102 -#define STM32H7_PE1_FUNC_HRTIM_SCOUT 0x4104 -#define STM32H7_PE1_FUNC_UART8_TX 0x4109 -#define STM32H7_PE1_FUNC_CAN1_TXFD 0x410a -#define STM32H7_PE1_FUNC_FMC_NBL1 0x410d -#define STM32H7_PE1_FUNC_DCMI_D3 0x410e -#define STM32H7_PE1_FUNC_EVENTOUT 0x4110 -#define STM32H7_PE1_FUNC_ANALOG 0x4111 - -#define STM32H7_PE2_FUNC_GPIO 0x4200 -#define STM32H7_PE2_FUNC_TRACECLK 0x4201 -#define STM32H7_PE2_FUNC_SAI1_CK1 0x4203 -#define STM32H7_PE2_FUNC_SPI4_SCK 0x4206 -#define STM32H7_PE2_FUNC_SAI1_MCLK_A 0x4207 -#define STM32H7_PE2_FUNC_SAI4_MCLK_A 0x4209 -#define STM32H7_PE2_FUNC_QUADSPI_BK1_IO2 0x420a -#define STM32H7_PE2_FUNC_SAI4_CK1 0x420b -#define STM32H7_PE2_FUNC_ETH_MII_TXD3 0x420c -#define STM32H7_PE2_FUNC_FMC_A23 0x420d -#define STM32H7_PE2_FUNC_EVENTOUT 0x4210 -#define STM32H7_PE2_FUNC_ANALOG 0x4211 - -#define STM32H7_PE3_FUNC_GPIO 0x4300 -#define STM32H7_PE3_FUNC_TRACED0 0x4301 -#define STM32H7_PE3_FUNC_TIM15_BKIN 0x4305 -#define STM32H7_PE3_FUNC_SAI1_SD_B 0x4307 -#define STM32H7_PE3_FUNC_SAI4_SD_B 0x4309 -#define STM32H7_PE3_FUNC_FMC_A19 0x430d -#define STM32H7_PE3_FUNC_EVENTOUT 0x4310 -#define STM32H7_PE3_FUNC_ANALOG 0x4311 - -#define STM32H7_PE4_FUNC_GPIO 0x4400 -#define STM32H7_PE4_FUNC_TRACED1 0x4401 -#define STM32H7_PE4_FUNC_SAI1_D2 0x4403 -#define STM32H7_PE4_FUNC_DFSDM_DATIN3 0x4404 -#define STM32H7_PE4_FUNC_TIM15_CH1N 0x4405 -#define STM32H7_PE4_FUNC_SPI4_NSS 0x4406 -#define STM32H7_PE4_FUNC_SAI1_FS_A 0x4407 -#define STM32H7_PE4_FUNC_SAI4_FS_A 0x4409 -#define STM32H7_PE4_FUNC_SAI4_D2 0x440b -#define STM32H7_PE4_FUNC_FMC_A20 0x440d -#define STM32H7_PE4_FUNC_DCMI_D4 0x440e -#define STM32H7_PE4_FUNC_LCD_B0 0x440f -#define STM32H7_PE4_FUNC_EVENTOUT 0x4410 -#define STM32H7_PE4_FUNC_ANALOG 0x4411 - -#define STM32H7_PE5_FUNC_GPIO 0x4500 -#define STM32H7_PE5_FUNC_TRACED2 0x4501 -#define STM32H7_PE5_FUNC_SAI1_CK2 0x4503 -#define STM32H7_PE5_FUNC_DFSDM_CKIN3 0x4504 -#define STM32H7_PE5_FUNC_TIM15_CH1 0x4505 -#define STM32H7_PE5_FUNC_SPI4_MISO 0x4506 -#define STM32H7_PE5_FUNC_SAI1_SCK_A 0x4507 -#define STM32H7_PE5_FUNC_SAI4_SCK_A 0x4509 -#define STM32H7_PE5_FUNC_SAI4_CK2 0x450b -#define STM32H7_PE5_FUNC_FMC_A21 0x450d -#define STM32H7_PE5_FUNC_DCMI_D6 0x450e -#define STM32H7_PE5_FUNC_LCD_G0 0x450f -#define STM32H7_PE5_FUNC_EVENTOUT 0x4510 -#define STM32H7_PE5_FUNC_ANALOG 0x4511 - -#define STM32H7_PE6_FUNC_GPIO 0x4600 -#define STM32H7_PE6_FUNC_TRACED3 0x4601 -#define STM32H7_PE6_FUNC_TIM1_BKIN2 0x4602 -#define STM32H7_PE6_FUNC_SAI1_D1 0x4603 -#define STM32H7_PE6_FUNC_TIM15_CH2 0x4605 -#define STM32H7_PE6_FUNC_SPI4_MOSI 0x4606 -#define STM32H7_PE6_FUNC_SAI1_SD_A 0x4607 -#define STM32H7_PE6_FUNC_SAI4_SD_A 0x4609 -#define STM32H7_PE6_FUNC_SAI4_D1 0x460a -#define STM32H7_PE6_FUNC_SAI2_MCK_B 0x460b -#define STM32H7_PE6_FUNC_TIM1_BKIN2_COMP12 0x460c -#define STM32H7_PE6_FUNC_FMC_A22 0x460d -#define STM32H7_PE6_FUNC_DCMI_D7 0x460e -#define STM32H7_PE6_FUNC_LCD_G1 0x460f -#define STM32H7_PE6_FUNC_EVENTOUT 0x4610 -#define STM32H7_PE6_FUNC_ANALOG 0x4611 - -#define STM32H7_PE7_FUNC_GPIO 0x4700 -#define STM32H7_PE7_FUNC_TIM1_ETR 0x4702 -#define STM32H7_PE7_FUNC_DFSDM_DATIN2 0x4704 -#define STM32H7_PE7_FUNC_UART7_RX 0x4708 -#define STM32H7_PE7_FUNC_QUADSPI_BK2_IO0 0x470b -#define STM32H7_PE7_FUNC_FMC_D4_FMC_DA4 0x470d -#define STM32H7_PE7_FUNC_EVENTOUT 0x4710 -#define STM32H7_PE7_FUNC_ANALOG 0x4711 - -#define STM32H7_PE8_FUNC_GPIO 0x4800 -#define STM32H7_PE8_FUNC_TIM1_CH1N 0x4802 -#define STM32H7_PE8_FUNC_DFSDM_CKIN2 0x4804 -#define STM32H7_PE8_FUNC_UART7_TX 0x4808 -#define STM32H7_PE8_FUNC_QUADSPI_BK2_IO1 0x480b -#define STM32H7_PE8_FUNC_FMC_D5_FMC_DA5 0x480d -#define STM32H7_PE8_FUNC_COMP_2_OUT 0x480e -#define STM32H7_PE8_FUNC_EVENTOUT 0x4810 -#define STM32H7_PE8_FUNC_ANALOG 0x4811 - -#define STM32H7_PE9_FUNC_GPIO 0x4900 -#define STM32H7_PE9_FUNC_TIM1_CH1 0x4902 -#define STM32H7_PE9_FUNC_DFSDM_CKOUT 0x4904 -#define STM32H7_PE9_FUNC_UART7_RTS 0x4908 -#define STM32H7_PE9_FUNC_QUADSPI_BK2_IO2 0x490b -#define STM32H7_PE9_FUNC_FMC_D6_FMC_DA6 0x490d -#define STM32H7_PE9_FUNC_EVENTOUT 0x4910 -#define STM32H7_PE9_FUNC_ANALOG 0x4911 - -#define STM32H7_PE10_FUNC_GPIO 0x4a00 -#define STM32H7_PE10_FUNC_TIM1_CH2N 0x4a02 -#define STM32H7_PE10_FUNC_DFSDM_DATIN4 0x4a04 -#define STM32H7_PE10_FUNC_UART7_CTS 0x4a08 -#define STM32H7_PE10_FUNC_QUADSPI_BK2_IO3 0x4a0b -#define STM32H7_PE10_FUNC_FMC_D7_FMC_DA7 0x4a0d -#define STM32H7_PE10_FUNC_EVENTOUT 0x4a10 -#define STM32H7_PE10_FUNC_ANALOG 0x4a11 - -#define STM32H7_PE11_FUNC_GPIO 0x4b00 -#define STM32H7_PE11_FUNC_TIM1_CH2 0x4b02 -#define STM32H7_PE11_FUNC_DFSDM_CKIN4 0x4b04 -#define STM32H7_PE11_FUNC_SPI4_NSS 0x4b06 -#define STM32H7_PE11_FUNC_SAI2_SD_B 0x4b0b -#define STM32H7_PE11_FUNC_FMC_D8_FMC_DA8 0x4b0d -#define STM32H7_PE11_FUNC_LCD_G3 0x4b0f -#define STM32H7_PE11_FUNC_EVENTOUT 0x4b10 -#define STM32H7_PE11_FUNC_ANALOG 0x4b11 - -#define STM32H7_PE12_FUNC_GPIO 0x4c00 -#define STM32H7_PE12_FUNC_TIM1_CH3N 0x4c02 -#define STM32H7_PE12_FUNC_DFSDM_DATIN5 0x4c04 -#define STM32H7_PE12_FUNC_SPI4_SCK 0x4c06 -#define STM32H7_PE12_FUNC_SAI2_SCK_B 0x4c0b -#define STM32H7_PE12_FUNC_FMC_D9_FMC_DA9 0x4c0d -#define STM32H7_PE12_FUNC_COMP_1_OUT 0x4c0e -#define STM32H7_PE12_FUNC_LCD_B4 0x4c0f -#define STM32H7_PE12_FUNC_EVENTOUT 0x4c10 -#define STM32H7_PE12_FUNC_ANALOG 0x4c11 - -#define STM32H7_PE13_FUNC_GPIO 0x4d00 -#define STM32H7_PE13_FUNC_TIM1_CH3 0x4d02 -#define STM32H7_PE13_FUNC_DFSDM_CKIN5 0x4d04 -#define STM32H7_PE13_FUNC_SPI4_MISO 0x4d06 -#define STM32H7_PE13_FUNC_SAI2_FS_B 0x4d0b -#define STM32H7_PE13_FUNC_FMC_D10_FMC_DA10 0x4d0d -#define STM32H7_PE13_FUNC_COMP_2_OUT 0x4d0e -#define STM32H7_PE13_FUNC_LCD_DE 0x4d0f -#define STM32H7_PE13_FUNC_EVENTOUT 0x4d10 -#define STM32H7_PE13_FUNC_ANALOG 0x4d11 - -#define STM32H7_PE14_FUNC_GPIO 0x4e00 -#define STM32H7_PE14_FUNC_TIM1_CH4 0x4e02 -#define STM32H7_PE14_FUNC_SPI4_MOSI 0x4e06 -#define STM32H7_PE14_FUNC_SAI2_MCK_B 0x4e0b -#define STM32H7_PE14_FUNC_FMC_D11_FMC_DA11 0x4e0d -#define STM32H7_PE14_FUNC_LCD_CLK 0x4e0f -#define STM32H7_PE14_FUNC_EVENTOUT 0x4e10 -#define STM32H7_PE14_FUNC_ANALOG 0x4e11 - -#define STM32H7_PE15_FUNC_GPIO 0x4f00 -#define STM32H7_PE15_FUNC_TIM1_BKIN 0x4f02 -#define STM32H7_PE15_FUNC_HDMI__TIM1_BKIN 0x4f06 -#define STM32H7_PE15_FUNC_FMC_D12_FMC_DA12 0x4f0d -#define STM32H7_PE15_FUNC_TIM1_BKIN_COMP12 0x4f0e -#define STM32H7_PE15_FUNC_LCD_R7 0x4f0f -#define STM32H7_PE15_FUNC_EVENTOUT 0x4f10 -#define STM32H7_PE15_FUNC_ANALOG 0x4f11 - -#define STM32H7_PF0_FUNC_GPIO 0x5000 -#define STM32H7_PF0_FUNC_I2C2_SDA 0x5005 -#define STM32H7_PF0_FUNC_FMC_A0 0x500d -#define STM32H7_PF0_FUNC_EVENTOUT 0x5010 -#define STM32H7_PF0_FUNC_ANALOG 0x5011 - -#define STM32H7_PF1_FUNC_GPIO 0x5100 -#define STM32H7_PF1_FUNC_I2C2_SCL 0x5105 -#define STM32H7_PF1_FUNC_FMC_A1 0x510d -#define STM32H7_PF1_FUNC_EVENTOUT 0x5110 -#define STM32H7_PF1_FUNC_ANALOG 0x5111 - -#define STM32H7_PF2_FUNC_GPIO 0x5200 -#define STM32H7_PF2_FUNC_I2C2_SMBA 0x5205 -#define STM32H7_PF2_FUNC_FMC_A2 0x520d -#define STM32H7_PF2_FUNC_EVENTOUT 0x5210 -#define STM32H7_PF2_FUNC_ANALOG 0x5211 - -#define STM32H7_PF3_FUNC_GPIO 0x5300 -#define STM32H7_PF3_FUNC_FMC_A3 0x530d -#define STM32H7_PF3_FUNC_EVENTOUT 0x5310 -#define STM32H7_PF3_FUNC_ANALOG 0x5311 - -#define STM32H7_PF4_FUNC_GPIO 0x5400 -#define STM32H7_PF4_FUNC_FMC_A4 0x540d -#define STM32H7_PF4_FUNC_EVENTOUT 0x5410 -#define STM32H7_PF4_FUNC_ANALOG 0x5411 - -#define STM32H7_PF5_FUNC_GPIO 0x5500 -#define STM32H7_PF5_FUNC_FMC_A5 0x550d -#define STM32H7_PF5_FUNC_EVENTOUT 0x5510 -#define STM32H7_PF5_FUNC_ANALOG 0x5511 - -#define STM32H7_PF6_FUNC_GPIO 0x5600 -#define STM32H7_PF6_FUNC_TIM16_CH1 0x5602 -#define STM32H7_PF6_FUNC_SPI5_NSS 0x5606 -#define STM32H7_PF6_FUNC_SAI1_SD_B 0x5607 -#define STM32H7_PF6_FUNC_UART7_RX 0x5608 -#define STM32H7_PF6_FUNC_SAI4_SD_B 0x5609 -#define STM32H7_PF6_FUNC_QUADSPI_BK1_IO3 0x560a -#define STM32H7_PF6_FUNC_EVENTOUT 0x5610 -#define STM32H7_PF6_FUNC_ANALOG 0x5611 - -#define STM32H7_PF7_FUNC_GPIO 0x5700 -#define STM32H7_PF7_FUNC_TIM17_CH1 0x5702 -#define STM32H7_PF7_FUNC_SPI5_SCK 0x5706 -#define STM32H7_PF7_FUNC_SAI1_MCLK_B 0x5707 -#define STM32H7_PF7_FUNC_UART7_TX 0x5708 -#define STM32H7_PF7_FUNC_SAI4_MCLK_B 0x5709 -#define STM32H7_PF7_FUNC_QUADSPI_BK1_IO2 0x570a -#define STM32H7_PF7_FUNC_EVENTOUT 0x5710 -#define STM32H7_PF7_FUNC_ANALOG 0x5711 - -#define STM32H7_PF8_FUNC_GPIO 0x5800 -#define STM32H7_PF8_FUNC_TIM16_CH1N 0x5802 -#define STM32H7_PF8_FUNC_SPI5_MISO 0x5806 -#define STM32H7_PF8_FUNC_SAI1_SCK_B 0x5807 -#define STM32H7_PF8_FUNC_UART7_RTS 0x5808 -#define STM32H7_PF8_FUNC_SAI4_SCK_B 0x5809 -#define STM32H7_PF8_FUNC_TIM13_CH1 0x580a -#define STM32H7_PF8_FUNC_QUADSPI_BK1_IO0 0x580b -#define STM32H7_PF8_FUNC_EVENTOUT 0x5810 -#define STM32H7_PF8_FUNC_ANALOG 0x5811 - -#define STM32H7_PF9_FUNC_GPIO 0x5900 -#define STM32H7_PF9_FUNC_TIM17_CH1N 0x5902 -#define STM32H7_PF9_FUNC_SPI5_MOSI 0x5906 -#define STM32H7_PF9_FUNC_SAI1_FS_B 0x5907 -#define STM32H7_PF9_FUNC_UART7_CTS 0x5908 -#define STM32H7_PF9_FUNC_SAI4_FS_B 0x5909 -#define STM32H7_PF9_FUNC_TIM14_CH1 0x590a -#define STM32H7_PF9_FUNC_QUADSPI_BK1_IO1 0x590b -#define STM32H7_PF9_FUNC_EVENTOUT 0x5910 -#define STM32H7_PF9_FUNC_ANALOG 0x5911 - -#define STM32H7_PF10_FUNC_GPIO 0x5a00 -#define STM32H7_PF10_FUNC_TIM16_BKIN 0x5a02 -#define STM32H7_PF10_FUNC_SAI1_D3 0x5a03 -#define STM32H7_PF10_FUNC_QUADSPI_CLK 0x5a0a -#define STM32H7_PF10_FUNC_SAI4_D3 0x5a0b -#define STM32H7_PF10_FUNC_DCMI_D11 0x5a0e -#define STM32H7_PF10_FUNC_LCD_DE 0x5a0f -#define STM32H7_PF10_FUNC_EVENTOUT 0x5a10 -#define STM32H7_PF10_FUNC_ANALOG 0x5a11 - -#define STM32H7_PF11_FUNC_GPIO 0x5b00 -#define STM32H7_PF11_FUNC_SPI5_MOSI 0x5b06 -#define STM32H7_PF11_FUNC_SAI2_SD_B 0x5b0b -#define STM32H7_PF11_FUNC_FMC_SDNRAS 0x5b0d -#define STM32H7_PF11_FUNC_DCMI_D12 0x5b0e -#define STM32H7_PF11_FUNC_EVENTOUT 0x5b10 -#define STM32H7_PF11_FUNC_ANALOG 0x5b11 - -#define STM32H7_PF12_FUNC_GPIO 0x5c00 -#define STM32H7_PF12_FUNC_FMC_A6 0x5c0d -#define STM32H7_PF12_FUNC_EVENTOUT 0x5c10 -#define STM32H7_PF12_FUNC_ANALOG 0x5c11 - -#define STM32H7_PF13_FUNC_GPIO 0x5d00 -#define STM32H7_PF13_FUNC_DFSDM_DATIN6 0x5d04 -#define STM32H7_PF13_FUNC_I2C4_SMBA 0x5d05 -#define STM32H7_PF13_FUNC_FMC_A7 0x5d0d -#define STM32H7_PF13_FUNC_EVENTOUT 0x5d10 -#define STM32H7_PF13_FUNC_ANALOG 0x5d11 - -#define STM32H7_PF14_FUNC_GPIO 0x5e00 -#define STM32H7_PF14_FUNC_DFSDM_CKIN6 0x5e04 -#define STM32H7_PF14_FUNC_I2C4_SCL 0x5e05 -#define STM32H7_PF14_FUNC_FMC_A8 0x5e0d -#define STM32H7_PF14_FUNC_EVENTOUT 0x5e10 -#define STM32H7_PF14_FUNC_ANALOG 0x5e11 - -#define STM32H7_PF15_FUNC_GPIO 0x5f00 -#define STM32H7_PF15_FUNC_I2C4_SDA 0x5f05 -#define STM32H7_PF15_FUNC_FMC_A9 0x5f0d -#define STM32H7_PF15_FUNC_EVENTOUT 0x5f10 -#define STM32H7_PF15_FUNC_ANALOG 0x5f11 - -#define STM32H7_PG0_FUNC_GPIO 0x6000 -#define STM32H7_PG0_FUNC_FMC_A10 0x600d -#define STM32H7_PG0_FUNC_EVENTOUT 0x6010 -#define STM32H7_PG0_FUNC_ANALOG 0x6011 - -#define STM32H7_PG1_FUNC_GPIO 0x6100 -#define STM32H7_PG1_FUNC_FMC_A11 0x610d -#define STM32H7_PG1_FUNC_EVENTOUT 0x6110 -#define STM32H7_PG1_FUNC_ANALOG 0x6111 - -#define STM32H7_PG2_FUNC_GPIO 0x6200 -#define STM32H7_PG2_FUNC_TIM8_BKIN 0x6204 -#define STM32H7_PG2_FUNC_TIM8_BKIN_COMP12 0x620c -#define STM32H7_PG2_FUNC_FMC_A12 0x620d -#define STM32H7_PG2_FUNC_EVENTOUT 0x6210 -#define STM32H7_PG2_FUNC_ANALOG 0x6211 - -#define STM32H7_PG3_FUNC_GPIO 0x6300 -#define STM32H7_PG3_FUNC_TIM8_BKIN2 0x6304 -#define STM32H7_PG3_FUNC_TIM8_BKIN2_COMP12 0x630c -#define STM32H7_PG3_FUNC_FMC_A13 0x630d -#define STM32H7_PG3_FUNC_EVENTOUT 0x6310 -#define STM32H7_PG3_FUNC_ANALOG 0x6311 - -#define STM32H7_PG4_FUNC_GPIO 0x6400 -#define STM32H7_PG4_FUNC_TIM1_BKIN2 0x6402 -#define STM32H7_PG4_FUNC_TIM1_BKIN2_COMP12 0x640c -#define STM32H7_PG4_FUNC_FMC_A14_FMC_BA0 0x640d -#define STM32H7_PG4_FUNC_EVENTOUT 0x6410 -#define STM32H7_PG4_FUNC_ANALOG 0x6411 - -#define STM32H7_PG5_FUNC_GPIO 0x6500 -#define STM32H7_PG5_FUNC_TIM1_ETR 0x6502 -#define STM32H7_PG5_FUNC_FMC_A15_FMC_BA1 0x650d -#define STM32H7_PG5_FUNC_EVENTOUT 0x6510 -#define STM32H7_PG5_FUNC_ANALOG 0x6511 - -#define STM32H7_PG6_FUNC_GPIO 0x6600 -#define STM32H7_PG6_FUNC_TIM17_BKIN 0x6602 -#define STM32H7_PG6_FUNC_HRTIM_CHE1 0x6603 -#define STM32H7_PG6_FUNC_QUADSPI_BK1_NCS 0x660b -#define STM32H7_PG6_FUNC_FMC_NE3 0x660d -#define STM32H7_PG6_FUNC_DCMI_D12 0x660e -#define STM32H7_PG6_FUNC_LCD_R7 0x660f -#define STM32H7_PG6_FUNC_EVENTOUT 0x6610 -#define STM32H7_PG6_FUNC_ANALOG 0x6611 - -#define STM32H7_PG7_FUNC_GPIO 0x6700 -#define STM32H7_PG7_FUNC_HRTIM_CHE2 0x6703 -#define STM32H7_PG7_FUNC_SAI1_MCLK_A 0x6707 -#define STM32H7_PG7_FUNC_USART6_CK 0x6708 -#define STM32H7_PG7_FUNC_FMC_INT 0x670d -#define STM32H7_PG7_FUNC_DCMI_D13 0x670e -#define STM32H7_PG7_FUNC_LCD_CLK 0x670f -#define STM32H7_PG7_FUNC_EVENTOUT 0x6710 -#define STM32H7_PG7_FUNC_ANALOG 0x6711 - -#define STM32H7_PG8_FUNC_GPIO 0x6800 -#define STM32H7_PG8_FUNC_TIM8_ETR 0x6804 -#define STM32H7_PG8_FUNC_SPI6_NSS 0x6806 -#define STM32H7_PG8_FUNC_USART6_RTS 0x6808 -#define STM32H7_PG8_FUNC_SPDIFRX_IN2 0x6809 -#define STM32H7_PG8_FUNC_ETH_PPS_OUT 0x680c -#define STM32H7_PG8_FUNC_FMC_SDCLK 0x680d -#define STM32H7_PG8_FUNC_LCD_G7 0x680f -#define STM32H7_PG8_FUNC_EVENTOUT 0x6810 -#define STM32H7_PG8_FUNC_ANALOG 0x6811 - -#define STM32H7_PG9_FUNC_GPIO 0x6900 -#define STM32H7_PG9_FUNC_SPI1_MISO_I2S1_SDI 0x6906 -#define STM32H7_PG9_FUNC_USART6_RX 0x6908 -#define STM32H7_PG9_FUNC_SPDIFRX_IN3 0x6909 -#define STM32H7_PG9_FUNC_QUADSPI_BK2_IO2 0x690a -#define STM32H7_PG9_FUNC_SAI2_FS_B 0x690b -#define STM32H7_PG9_FUNC_FMC_NE2_FMC_NCE 0x690d -#define STM32H7_PG9_FUNC_DCMI_VSYNC 0x690e -#define STM32H7_PG9_FUNC_EVENTOUT 0x6910 -#define STM32H7_PG9_FUNC_ANALOG 0x6911 - -#define STM32H7_PG10_FUNC_GPIO 0x6a00 -#define STM32H7_PG10_FUNC_HRTIM_FLT5 0x6a03 -#define STM32H7_PG10_FUNC_SPI1_NSS_I2S1_WS 0x6a06 -#define STM32H7_PG10_FUNC_LCD_G3 0x6a0a -#define STM32H7_PG10_FUNC_SAI2_SD_B 0x6a0b -#define STM32H7_PG10_FUNC_FMC_NE3 0x6a0d -#define STM32H7_PG10_FUNC_DCMI_D2 0x6a0e -#define STM32H7_PG10_FUNC_LCD_B2 0x6a0f -#define STM32H7_PG10_FUNC_EVENTOUT 0x6a10 -#define STM32H7_PG10_FUNC_ANALOG 0x6a11 - -#define STM32H7_PG11_FUNC_GPIO 0x6b00 -#define STM32H7_PG11_FUNC_HRTIM_EEV4 0x6b03 -#define STM32H7_PG11_FUNC_SPI1_SCK_I2S1_CK 0x6b06 -#define STM32H7_PG11_FUNC_SPDIFRX_IN0 0x6b09 -#define STM32H7_PG11_FUNC_SDMMC2_D2 0x6b0b -#define STM32H7_PG11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN 0x6b0c -#define STM32H7_PG11_FUNC_DCMI_D3 0x6b0e -#define STM32H7_PG11_FUNC_LCD_B3 0x6b0f -#define STM32H7_PG11_FUNC_EVENTOUT 0x6b10 -#define STM32H7_PG11_FUNC_ANALOG 0x6b11 - -#define STM32H7_PG12_FUNC_GPIO 0x6c00 -#define STM32H7_PG12_FUNC_LPTIM1_IN1 0x6c02 -#define STM32H7_PG12_FUNC_HRTIM_EEV5 0x6c03 -#define STM32H7_PG12_FUNC_SPI6_MISO 0x6c06 -#define STM32H7_PG12_FUNC_USART6_RTS 0x6c08 -#define STM32H7_PG12_FUNC_SPDIFRX_IN1 0x6c09 -#define STM32H7_PG12_FUNC_LCD_B4 0x6c0a -#define STM32H7_PG12_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1 0x6c0c -#define STM32H7_PG12_FUNC_FMC_NE4 0x6c0d -#define STM32H7_PG12_FUNC_LCD_B1 0x6c0f -#define STM32H7_PG12_FUNC_EVENTOUT 0x6c10 -#define STM32H7_PG12_FUNC_ANALOG 0x6c11 - -#define STM32H7_PG13_FUNC_GPIO 0x6d00 -#define STM32H7_PG13_FUNC_TRACED0 0x6d01 -#define STM32H7_PG13_FUNC_LPTIM1_OUT 0x6d02 -#define STM32H7_PG13_FUNC_HRTIM_EEV10 0x6d03 -#define STM32H7_PG13_FUNC_SPI6_SCK 0x6d06 -#define STM32H7_PG13_FUNC_USART6_CTS_NSS 0x6d08 -#define STM32H7_PG13_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0 0x6d0c -#define STM32H7_PG13_FUNC_FMC_A24 0x6d0d -#define STM32H7_PG13_FUNC_LCD_R0 0x6d0f -#define STM32H7_PG13_FUNC_EVENTOUT 0x6d10 -#define STM32H7_PG13_FUNC_ANALOG 0x6d11 - -#define STM32H7_PG14_FUNC_GPIO 0x6e00 -#define STM32H7_PG14_FUNC_TRACED1 0x6e01 -#define STM32H7_PG14_FUNC_LPTIM1_ETR 0x6e02 -#define STM32H7_PG14_FUNC_SPI6_MOSI 0x6e06 -#define STM32H7_PG14_FUNC_USART6_TX 0x6e08 -#define STM32H7_PG14_FUNC_QUADSPI_BK2_IO3 0x6e0a -#define STM32H7_PG14_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1 0x6e0c -#define STM32H7_PG14_FUNC_FMC_A25 0x6e0d -#define STM32H7_PG14_FUNC_LCD_B0 0x6e0f -#define STM32H7_PG14_FUNC_EVENTOUT 0x6e10 -#define STM32H7_PG14_FUNC_ANALOG 0x6e11 - -#define STM32H7_PG15_FUNC_GPIO 0x6f00 -#define STM32H7_PG15_FUNC_USART6_CTS_NSS 0x6f08 -#define STM32H7_PG15_FUNC_FMC_SDNCAS 0x6f0d -#define STM32H7_PG15_FUNC_DCMI_D13 0x6f0e -#define STM32H7_PG15_FUNC_EVENTOUT 0x6f10 -#define STM32H7_PG15_FUNC_ANALOG 0x6f11 - -#define STM32H7_PH0_FUNC_GPIO 0x7000 -#define STM32H7_PH0_FUNC_EVENTOUT 0x7010 -#define STM32H7_PH0_FUNC_ANALOG 0x7011 - -#define STM32H7_PH1_FUNC_GPIO 0x7100 -#define STM32H7_PH1_FUNC_EVENTOUT 0x7110 -#define STM32H7_PH1_FUNC_ANALOG 0x7111 - -#define STM32H7_PH2_FUNC_GPIO 0x7200 -#define STM32H7_PH2_FUNC_LPTIM1_IN2 0x7202 -#define STM32H7_PH2_FUNC_QUADSPI_BK2_IO0 0x720a -#define STM32H7_PH2_FUNC_SAI2_SCK_B 0x720b -#define STM32H7_PH2_FUNC_ETH_MII_CRS 0x720c -#define STM32H7_PH2_FUNC_FMC_SDCKE0 0x720d -#define STM32H7_PH2_FUNC_LCD_R0 0x720f -#define STM32H7_PH2_FUNC_EVENTOUT 0x7210 -#define STM32H7_PH2_FUNC_ANALOG 0x7211 - -#define STM32H7_PH3_FUNC_GPIO 0x7300 -#define STM32H7_PH3_FUNC_QUADSPI_BK2_IO1 0x730a -#define STM32H7_PH3_FUNC_SAI2_MCK_B 0x730b -#define STM32H7_PH3_FUNC_ETH_MII_COL 0x730c -#define STM32H7_PH3_FUNC_FMC_SDNE0 0x730d -#define STM32H7_PH3_FUNC_LCD_R1 0x730f -#define STM32H7_PH3_FUNC_EVENTOUT 0x7310 -#define STM32H7_PH3_FUNC_ANALOG 0x7311 - -#define STM32H7_PH4_FUNC_GPIO 0x7400 -#define STM32H7_PH4_FUNC_I2C2_SCL 0x7405 -#define STM32H7_PH4_FUNC_LCD_G5 0x740a -#define STM32H7_PH4_FUNC_OTG_HS_ULPI_NXT 0x740b -#define STM32H7_PH4_FUNC_LCD_G4 0x740f -#define STM32H7_PH4_FUNC_EVENTOUT 0x7410 -#define STM32H7_PH4_FUNC_ANALOG 0x7411 - -#define STM32H7_PH5_FUNC_GPIO 0x7500 -#define STM32H7_PH5_FUNC_I2C2_SDA 0x7505 -#define STM32H7_PH5_FUNC_SPI5_NSS 0x7506 -#define STM32H7_PH5_FUNC_FMC_SDNWE 0x750d -#define STM32H7_PH5_FUNC_EVENTOUT 0x7510 -#define STM32H7_PH5_FUNC_ANALOG 0x7511 - -#define STM32H7_PH6_FUNC_GPIO 0x7600 -#define STM32H7_PH6_FUNC_I2C2_SMBA 0x7605 -#define STM32H7_PH6_FUNC_SPI5_SCK 0x7606 -#define STM32H7_PH6_FUNC_ETH_MII_RXD2 0x760c -#define STM32H7_PH6_FUNC_FMC_SDNE1 0x760d -#define STM32H7_PH6_FUNC_DCMI_D8 0x760e -#define STM32H7_PH6_FUNC_EVENTOUT 0x7610 -#define STM32H7_PH6_FUNC_ANALOG 0x7611 - -#define STM32H7_PH7_FUNC_GPIO 0x7700 -#define STM32H7_PH7_FUNC_I2C3_SCL 0x7705 -#define STM32H7_PH7_FUNC_SPI5_MISO 0x7706 -#define STM32H7_PH7_FUNC_ETH_MII_RXD3 0x770c -#define STM32H7_PH7_FUNC_FMC_SDCKE1 0x770d -#define STM32H7_PH7_FUNC_DCMI_D9 0x770e -#define STM32H7_PH7_FUNC_EVENTOUT 0x7710 -#define STM32H7_PH7_FUNC_ANALOG 0x7711 - -#define STM32H7_PH8_FUNC_GPIO 0x7800 -#define STM32H7_PH8_FUNC_TIM5_ETR 0x7803 -#define STM32H7_PH8_FUNC_I2C3_SDA 0x7805 -#define STM32H7_PH8_FUNC_FMC_D16 0x780d -#define STM32H7_PH8_FUNC_DCMI_HSYNC 0x780e -#define STM32H7_PH8_FUNC_LCD_R2 0x780f -#define STM32H7_PH8_FUNC_EVENTOUT 0x7810 -#define STM32H7_PH8_FUNC_ANALOG 0x7811 - -#define STM32H7_PH9_FUNC_GPIO 0x7900 -#define STM32H7_PH9_FUNC_I2C3_SMBA 0x7905 -#define STM32H7_PH9_FUNC_FMC_D17 0x790d -#define STM32H7_PH9_FUNC_DCMI_D0 0x790e -#define STM32H7_PH9_FUNC_LCD_R3 0x790f -#define STM32H7_PH9_FUNC_EVENTOUT 0x7910 -#define STM32H7_PH9_FUNC_ANALOG 0x7911 - -#define STM32H7_PH10_FUNC_GPIO 0x7a00 -#define STM32H7_PH10_FUNC_TIM5_CH1 0x7a03 -#define STM32H7_PH10_FUNC_I2C4_SMBA 0x7a05 -#define STM32H7_PH10_FUNC_FMC_D18 0x7a0d -#define STM32H7_PH10_FUNC_DCMI_D1 0x7a0e -#define STM32H7_PH10_FUNC_LCD_R4 0x7a0f -#define STM32H7_PH10_FUNC_EVENTOUT 0x7a10 -#define STM32H7_PH10_FUNC_ANALOG 0x7a11 - -#define STM32H7_PH11_FUNC_GPIO 0x7b00 -#define STM32H7_PH11_FUNC_TIM5_CH2 0x7b03 -#define STM32H7_PH11_FUNC_I2C4_SCL 0x7b05 -#define STM32H7_PH11_FUNC_FMC_D19 0x7b0d -#define STM32H7_PH11_FUNC_DCMI_D2 0x7b0e -#define STM32H7_PH11_FUNC_LCD_R5 0x7b0f -#define STM32H7_PH11_FUNC_EVENTOUT 0x7b10 -#define STM32H7_PH11_FUNC_ANALOG 0x7b11 - -#define STM32H7_PH12_FUNC_GPIO 0x7c00 -#define STM32H7_PH12_FUNC_TIM5_CH3 0x7c03 -#define STM32H7_PH12_FUNC_I2C4_SDA 0x7c05 -#define STM32H7_PH12_FUNC_FMC_D20 0x7c0d -#define STM32H7_PH12_FUNC_DCMI_D3 0x7c0e -#define STM32H7_PH12_FUNC_LCD_R6 0x7c0f -#define STM32H7_PH12_FUNC_EVENTOUT 0x7c10 -#define STM32H7_PH12_FUNC_ANALOG 0x7c11 - -#define STM32H7_PH13_FUNC_GPIO 0x7d00 -#define STM32H7_PH13_FUNC_TIM8_CH1N 0x7d04 -#define STM32H7_PH13_FUNC_UART4_TX 0x7d09 -#define STM32H7_PH13_FUNC_CAN1_TX 0x7d0a -#define STM32H7_PH13_FUNC_FMC_D21 0x7d0d -#define STM32H7_PH13_FUNC_LCD_G2 0x7d0f -#define STM32H7_PH13_FUNC_EVENTOUT 0x7d10 -#define STM32H7_PH13_FUNC_ANALOG 0x7d11 - -#define STM32H7_PH14_FUNC_GPIO 0x7e00 -#define STM32H7_PH14_FUNC_TIM8_CH2N 0x7e04 -#define STM32H7_PH14_FUNC_UART4_RX 0x7e09 -#define STM32H7_PH14_FUNC_CAN1_RX 0x7e0a -#define STM32H7_PH14_FUNC_FMC_D22 0x7e0d -#define STM32H7_PH14_FUNC_DCMI_D4 0x7e0e -#define STM32H7_PH14_FUNC_LCD_G3 0x7e0f -#define STM32H7_PH14_FUNC_EVENTOUT 0x7e10 -#define STM32H7_PH14_FUNC_ANALOG 0x7e11 - -#define STM32H7_PH15_FUNC_GPIO 0x7f00 -#define STM32H7_PH15_FUNC_TIM8_CH3N 0x7f04 -#define STM32H7_PH15_FUNC_CAN1_TXFD 0x7f0a -#define STM32H7_PH15_FUNC_FMC_D23 0x7f0d -#define STM32H7_PH15_FUNC_DCMI_D11 0x7f0e -#define STM32H7_PH15_FUNC_LCD_G4 0x7f0f -#define STM32H7_PH15_FUNC_EVENTOUT 0x7f10 -#define STM32H7_PH15_FUNC_ANALOG 0x7f11 - -#define STM32H7_PI0_FUNC_GPIO 0x8000 -#define STM32H7_PI0_FUNC_TIM5_CH4 0x8003 -#define STM32H7_PI0_FUNC_SPI2_NSS_I2S2_WS 0x8006 -#define STM32H7_PI0_FUNC_CAN1_RXFD 0x800a -#define STM32H7_PI0_FUNC_FMC_D24 0x800d -#define STM32H7_PI0_FUNC_DCMI_D13 0x800e -#define STM32H7_PI0_FUNC_LCD_G5 0x800f -#define STM32H7_PI0_FUNC_EVENTOUT 0x8010 -#define STM32H7_PI0_FUNC_ANALOG 0x8011 - -#define STM32H7_PI1_FUNC_GPIO 0x8100 -#define STM32H7_PI1_FUNC_TIM8_BKIN2 0x8104 -#define STM32H7_PI1_FUNC_SPI2_SCK_I2S2_CK 0x8106 -#define STM32H7_PI1_FUNC_TIM8_BKIN2_COMP12 0x810c -#define STM32H7_PI1_FUNC_FMC_D25 0x810d -#define STM32H7_PI1_FUNC_DCMI_D8 0x810e -#define STM32H7_PI1_FUNC_LCD_G6 0x810f -#define STM32H7_PI1_FUNC_EVENTOUT 0x8110 -#define STM32H7_PI1_FUNC_ANALOG 0x8111 - -#define STM32H7_PI2_FUNC_GPIO 0x8200 -#define STM32H7_PI2_FUNC_TIM8_CH4 0x8204 -#define STM32H7_PI2_FUNC_SPI2_MISO_I2S2_SDI 0x8206 -#define STM32H7_PI2_FUNC_FMC_D26 0x820d -#define STM32H7_PI2_FUNC_DCMI_D9 0x820e -#define STM32H7_PI2_FUNC_LCD_G7 0x820f -#define STM32H7_PI2_FUNC_EVENTOUT 0x8210 -#define STM32H7_PI2_FUNC_ANALOG 0x8211 - -#define STM32H7_PI3_FUNC_GPIO 0x8300 -#define STM32H7_PI3_FUNC_TIM8_ETR 0x8304 -#define STM32H7_PI3_FUNC_SPI2_MOSI_I2S2_SDO 0x8306 -#define STM32H7_PI3_FUNC_FMC_D27 0x830d -#define STM32H7_PI3_FUNC_DCMI_D10 0x830e -#define STM32H7_PI3_FUNC_EVENTOUT 0x8310 -#define STM32H7_PI3_FUNC_ANALOG 0x8311 - -#define STM32H7_PI4_FUNC_GPIO 0x8400 -#define STM32H7_PI4_FUNC_TIM8_BKIN 0x8404 -#define STM32H7_PI4_FUNC_SAI2_MCK_A 0x840b -#define STM32H7_PI4_FUNC_TIM8_BKIN_COMP12 0x840c -#define STM32H7_PI4_FUNC_FMC_NBL2 0x840d -#define STM32H7_PI4_FUNC_DCMI_D5 0x840e -#define STM32H7_PI4_FUNC_LCD_B4 0x840f -#define STM32H7_PI4_FUNC_EVENTOUT 0x8410 -#define STM32H7_PI4_FUNC_ANALOG 0x8411 - -#define STM32H7_PI5_FUNC_GPIO 0x8500 -#define STM32H7_PI5_FUNC_TIM8_CH1 0x8504 -#define STM32H7_PI5_FUNC_SAI2_SCK_A 0x850b -#define STM32H7_PI5_FUNC_FMC_NBL3 0x850d -#define STM32H7_PI5_FUNC_DCMI_VSYNC 0x850e -#define STM32H7_PI5_FUNC_LCD_B5 0x850f -#define STM32H7_PI5_FUNC_EVENTOUT 0x8510 -#define STM32H7_PI5_FUNC_ANALOG 0x8511 - -#define STM32H7_PI6_FUNC_GPIO 0x8600 -#define STM32H7_PI6_FUNC_TIM8_CH2 0x8604 -#define STM32H7_PI6_FUNC_SAI2_SD_A 0x860b -#define STM32H7_PI6_FUNC_FMC_D28 0x860d -#define STM32H7_PI6_FUNC_DCMI_D6 0x860e -#define STM32H7_PI6_FUNC_LCD_B6 0x860f -#define STM32H7_PI6_FUNC_EVENTOUT 0x8610 -#define STM32H7_PI6_FUNC_ANALOG 0x8611 - -#define STM32H7_PI7_FUNC_GPIO 0x8700 -#define STM32H7_PI7_FUNC_TIM8_CH3 0x8704 -#define STM32H7_PI7_FUNC_SAI2_FS_A 0x870b -#define STM32H7_PI7_FUNC_FMC_D29 0x870d -#define STM32H7_PI7_FUNC_DCMI_D7 0x870e -#define STM32H7_PI7_FUNC_LCD_B7 0x870f -#define STM32H7_PI7_FUNC_EVENTOUT 0x8710 -#define STM32H7_PI7_FUNC_ANALOG 0x8711 - -#define STM32H7_PI8_FUNC_GPIO 0x8800 -#define STM32H7_PI8_FUNC_EVENTOUT 0x8810 -#define STM32H7_PI8_FUNC_ANALOG 0x8811 - -#define STM32H7_PI9_FUNC_GPIO 0x8900 -#define STM32H7_PI9_FUNC_UART4_RX 0x8909 -#define STM32H7_PI9_FUNC_CAN1_RX 0x890a -#define STM32H7_PI9_FUNC_FMC_D30 0x890d -#define STM32H7_PI9_FUNC_LCD_VSYNC 0x890f -#define STM32H7_PI9_FUNC_EVENTOUT 0x8910 -#define STM32H7_PI9_FUNC_ANALOG 0x8911 - -#define STM32H7_PI10_FUNC_GPIO 0x8a00 -#define STM32H7_PI10_FUNC_CAN1_RXFD 0x8a0a -#define STM32H7_PI10_FUNC_ETH_MII_RX_ER 0x8a0c -#define STM32H7_PI10_FUNC_FMC_D31 0x8a0d -#define STM32H7_PI10_FUNC_LCD_HSYNC 0x8a0f -#define STM32H7_PI10_FUNC_EVENTOUT 0x8a10 -#define STM32H7_PI10_FUNC_ANALOG 0x8a11 - -#define STM32H7_PI11_FUNC_GPIO 0x8b00 -#define STM32H7_PI11_FUNC_LCD_G6 0x8b0a -#define STM32H7_PI11_FUNC_OTG_HS_ULPI_DIR 0x8b0b -#define STM32H7_PI11_FUNC_EVENTOUT 0x8b10 -#define STM32H7_PI11_FUNC_ANALOG 0x8b11 - -#define STM32H7_PI12_FUNC_GPIO 0x8c00 -#define STM32H7_PI12_FUNC_ETH_TX_ER 0x8c0c -#define STM32H7_PI12_FUNC_LCD_HSYNC 0x8c0f -#define STM32H7_PI12_FUNC_EVENTOUT 0x8c10 -#define STM32H7_PI12_FUNC_ANALOG 0x8c11 - -#define STM32H7_PI13_FUNC_GPIO 0x8d00 -#define STM32H7_PI13_FUNC_LCD_VSYNC 0x8d0f -#define STM32H7_PI13_FUNC_EVENTOUT 0x8d10 -#define STM32H7_PI13_FUNC_ANALOG 0x8d11 - -#define STM32H7_PI14_FUNC_GPIO 0x8e00 -#define STM32H7_PI14_FUNC_LCD_CLK 0x8e0f -#define STM32H7_PI14_FUNC_EVENTOUT 0x8e10 -#define STM32H7_PI14_FUNC_ANALOG 0x8e11 - -#define STM32H7_PI15_FUNC_GPIO 0x8f00 -#define STM32H7_PI15_FUNC_LCD_G2 0x8f0a -#define STM32H7_PI15_FUNC_LCD_R0 0x8f0f -#define STM32H7_PI15_FUNC_EVENTOUT 0x8f10 -#define STM32H7_PI15_FUNC_ANALOG 0x8f11 - -#define STM32H7_PJ0_FUNC_GPIO 0x9000 -#define STM32H7_PJ0_FUNC_LCD_R7 0x900a -#define STM32H7_PJ0_FUNC_LCD_R1 0x900f -#define STM32H7_PJ0_FUNC_EVENTOUT 0x9010 -#define STM32H7_PJ0_FUNC_ANALOG 0x9011 - -#define STM32H7_PJ1_FUNC_GPIO 0x9100 -#define STM32H7_PJ1_FUNC_LCD_R2 0x910f -#define STM32H7_PJ1_FUNC_EVENTOUT 0x9110 -#define STM32H7_PJ1_FUNC_ANALOG 0x9111 - -#define STM32H7_PJ2_FUNC_GPIO 0x9200 -#define STM32H7_PJ2_FUNC_DSI_TE 0x920e -#define STM32H7_PJ2_FUNC_LCD_R3 0x920f -#define STM32H7_PJ2_FUNC_EVENTOUT 0x9210 -#define STM32H7_PJ2_FUNC_ANALOG 0x9211 - -#define STM32H7_PJ3_FUNC_GPIO 0x9300 -#define STM32H7_PJ3_FUNC_LCD_R4 0x930f -#define STM32H7_PJ3_FUNC_EVENTOUT 0x9310 -#define STM32H7_PJ3_FUNC_ANALOG 0x9311 - -#define STM32H7_PJ4_FUNC_GPIO 0x9400 -#define STM32H7_PJ4_FUNC_LCD_R5 0x940f -#define STM32H7_PJ4_FUNC_EVENTOUT 0x9410 -#define STM32H7_PJ4_FUNC_ANALOG 0x9411 - -#define STM32H7_PJ5_FUNC_GPIO 0x9500 -#define STM32H7_PJ5_FUNC_LCD_R6 0x950f -#define STM32H7_PJ5_FUNC_EVENTOUT 0x9510 -#define STM32H7_PJ5_FUNC_ANALOG 0x9511 - -#define STM32H7_PJ6_FUNC_GPIO 0x9600 -#define STM32H7_PJ6_FUNC_TIM8_CH2 0x9604 -#define STM32H7_PJ6_FUNC_LCD_R7 0x960f -#define STM32H7_PJ6_FUNC_EVENTOUT 0x9610 -#define STM32H7_PJ6_FUNC_ANALOG 0x9611 - -#define STM32H7_PJ7_FUNC_GPIO 0x9700 -#define STM32H7_PJ7_FUNC_TRGIN 0x9701 -#define STM32H7_PJ7_FUNC_TIM8_CH2N 0x9704 -#define STM32H7_PJ7_FUNC_LCD_G0 0x970f -#define STM32H7_PJ7_FUNC_EVENTOUT 0x9710 -#define STM32H7_PJ7_FUNC_ANALOG 0x9711 - -#define STM32H7_PJ8_FUNC_GPIO 0x9800 -#define STM32H7_PJ8_FUNC_TIM1_CH3N 0x9802 -#define STM32H7_PJ8_FUNC_TIM8_CH1 0x9804 -#define STM32H7_PJ8_FUNC_UART8_TX 0x9809 -#define STM32H7_PJ8_FUNC_LCD_G1 0x980f -#define STM32H7_PJ8_FUNC_EVENTOUT 0x9810 -#define STM32H7_PJ8_FUNC_ANALOG 0x9811 - -#define STM32H7_PJ9_FUNC_GPIO 0x9900 -#define STM32H7_PJ9_FUNC_TIM1_CH3 0x9902 -#define STM32H7_PJ9_FUNC_TIM8_CH1N 0x9904 -#define STM32H7_PJ9_FUNC_UART8_RX 0x9909 -#define STM32H7_PJ9_FUNC_LCD_G2 0x990f -#define STM32H7_PJ9_FUNC_EVENTOUT 0x9910 -#define STM32H7_PJ9_FUNC_ANALOG 0x9911 - -#define STM32H7_PJ10_FUNC_GPIO 0x9a00 -#define STM32H7_PJ10_FUNC_TIM1_CH2N 0x9a02 -#define STM32H7_PJ10_FUNC_TIM8_CH2 0x9a04 -#define STM32H7_PJ10_FUNC_SPI5_MOSI 0x9a06 -#define STM32H7_PJ10_FUNC_LCD_G3 0x9a0f -#define STM32H7_PJ10_FUNC_EVENTOUT 0x9a10 -#define STM32H7_PJ10_FUNC_ANALOG 0x9a11 - -#define STM32H7_PJ11_FUNC_GPIO 0x9b00 -#define STM32H7_PJ11_FUNC_TIM1_CH2 0x9b02 -#define STM32H7_PJ11_FUNC_TIM8_CH2N 0x9b04 -#define STM32H7_PJ11_FUNC_SPI5_MISO 0x9b06 -#define STM32H7_PJ11_FUNC_LCD_G4 0x9b0f -#define STM32H7_PJ11_FUNC_EVENTOUT 0x9b10 -#define STM32H7_PJ11_FUNC_ANALOG 0x9b11 - -#define STM32H7_PJ12_FUNC_GPIO 0x9c00 -#define STM32H7_PJ12_FUNC_TRGOUT 0x9c01 -#define STM32H7_PJ12_FUNC_LCD_G3 0x9c0a -#define STM32H7_PJ12_FUNC_LCD_B0 0x9c0f -#define STM32H7_PJ12_FUNC_EVENTOUT 0x9c10 -#define STM32H7_PJ12_FUNC_ANALOG 0x9c11 - -#define STM32H7_PJ13_FUNC_GPIO 0x9d00 -#define STM32H7_PJ13_FUNC_LCD_B4 0x9d0a -#define STM32H7_PJ13_FUNC_LCD_B1 0x9d0f -#define STM32H7_PJ13_FUNC_EVENTOUT 0x9d10 -#define STM32H7_PJ13_FUNC_ANALOG 0x9d11 - -#define STM32H7_PJ14_FUNC_GPIO 0x9e00 -#define STM32H7_PJ14_FUNC_LCD_B2 0x9e0f -#define STM32H7_PJ14_FUNC_EVENTOUT 0x9e10 -#define STM32H7_PJ14_FUNC_ANALOG 0x9e11 - -#define STM32H7_PJ15_FUNC_GPIO 0x9f00 -#define STM32H7_PJ15_FUNC_LCD_B3 0x9f0f -#define STM32H7_PJ15_FUNC_EVENTOUT 0x9f10 -#define STM32H7_PJ15_FUNC_ANALOG 0x9f11 - -#define STM32H7_PK0_FUNC_GPIO 0xa000 -#define STM32H7_PK0_FUNC_TIM1_CH1N 0xa002 -#define STM32H7_PK0_FUNC_TIM8_CH3 0xa004 -#define STM32H7_PK0_FUNC_SPI5_SCK 0xa006 -#define STM32H7_PK0_FUNC_LCD_G5 0xa00f -#define STM32H7_PK0_FUNC_EVENTOUT 0xa010 -#define STM32H7_PK0_FUNC_ANALOG 0xa011 - -#define STM32H7_PK1_FUNC_GPIO 0xa100 -#define STM32H7_PK1_FUNC_TIM1_CH1 0xa102 -#define STM32H7_PK1_FUNC_TIM8_CH3N 0xa104 -#define STM32H7_PK1_FUNC_SPI5_NSS 0xa106 -#define STM32H7_PK1_FUNC_LCD_G6 0xa10f -#define STM32H7_PK1_FUNC_EVENTOUT 0xa110 -#define STM32H7_PK1_FUNC_ANALOG 0xa111 - -#define STM32H7_PK2_FUNC_GPIO 0xa200 -#define STM32H7_PK2_FUNC_TIM1_BKIN 0xa202 -#define STM32H7_PK2_FUNC_TIM8_BKIN 0xa204 -#define STM32H7_PK2_FUNC_TIM8_BKIN_COMP12 0xa20b -#define STM32H7_PK2_FUNC_TIM1_BKIN_COMP12 0xa20c -#define STM32H7_PK2_FUNC_LCD_G7 0xa20f -#define STM32H7_PK2_FUNC_EVENTOUT 0xa210 -#define STM32H7_PK2_FUNC_ANALOG 0xa211 - -#define STM32H7_PK3_FUNC_GPIO 0xa300 -#define STM32H7_PK3_FUNC_LCD_B4 0xa30f -#define STM32H7_PK3_FUNC_EVENTOUT 0xa310 -#define STM32H7_PK3_FUNC_ANALOG 0xa311 - -#define STM32H7_PK4_FUNC_GPIO 0xa400 -#define STM32H7_PK4_FUNC_LCD_B5 0xa40f -#define STM32H7_PK4_FUNC_EVENTOUT 0xa410 -#define STM32H7_PK4_FUNC_ANALOG 0xa411 - -#define STM32H7_PK5_FUNC_GPIO 0xa500 -#define STM32H7_PK5_FUNC_LCD_B6 0xa50f -#define STM32H7_PK5_FUNC_EVENTOUT 0xa510 -#define STM32H7_PK5_FUNC_ANALOG 0xa511 - -#define STM32H7_PK6_FUNC_GPIO 0xa600 -#define STM32H7_PK6_FUNC_LCD_B7 0xa60f -#define STM32H7_PK6_FUNC_EVENTOUT 0xa610 -#define STM32H7_PK6_FUNC_ANALOG 0xa611 - -#define STM32H7_PK7_FUNC_GPIO 0xa700 -#define STM32H7_PK7_FUNC_LCD_DE 0xa70f -#define STM32H7_PK7_FUNC_EVENTOUT 0xa710 -#define STM32H7_PK7_FUNC_ANALOG 0xa711 - -#endif /* _DT_BINDINGS_STM32H7_PINFUNC_H */ -- cgit v1.2.3 From fbe8749897710deffae4c77c1cdc34b31e2fc773 Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Fri, 13 Oct 2017 11:01:46 +0200 Subject: pinctrl: dt-bindings: Fix A37xx uart2 group name Fix a typo in A37xx pin controllers documentation about uart2 pin group. Signed-off-by: Miquel Raynal Reviewed-by: Gregory CLEMENT Signed-off-by: Linus Walleij --- .../devicetree/bindings/pinctrl/marvell,armada-37xx-pinctrl.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pinctrl/marvell,armada-37xx-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/marvell,armada-37xx-pinctrl.txt index f64060908d5a..c7c088d2dd50 100644 --- a/Documentation/devicetree/bindings/pinctrl/marvell,armada-37xx-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/marvell,armada-37xx-pinctrl.txt @@ -97,8 +97,8 @@ group spi_quad - pins 15-16 - functions spi, gpio -group uart_2 - - pins 9-10 +group uart2 + - pins 9-10 and 18-19 - functions uart, gpio Available groups and functions for the South bridge: -- cgit v1.2.3 From 7ef3b44ceafb5456b7e43e2bd96e22bb696806c9 Mon Sep 17 00:00:00 2001 From: Jacob Chen Date: Wed, 11 Oct 2017 00:29:34 -0700 Subject: [media] dt-bindings: Document the Rockchip RGA bindings Add DT bindings documentation for Rockchip RGA Signed-off-by: Jacob Chen Signed-off-by: Yakir Yang Acked-by: Rob Herring Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- .../devicetree/bindings/media/rockchip-rga.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/rockchip-rga.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/rockchip-rga.txt b/Documentation/devicetree/bindings/media/rockchip-rga.txt new file mode 100644 index 000000000000..fd5276abfad6 --- /dev/null +++ b/Documentation/devicetree/bindings/media/rockchip-rga.txt @@ -0,0 +1,33 @@ +device-tree bindings for rockchip 2D raster graphic acceleration controller (RGA) + +RGA is a standalone 2D raster graphic acceleration unit. It accelerates 2D +graphics operations, such as point/line drawing, image scaling, rotation, +BitBLT, alpha blending and image blur/sharpness. + +Required properties: +- compatible: value should be one of the following + "rockchip,rk3288-rga"; + "rockchip,rk3399-rga"; + +- interrupts: RGA interrupt specifier. + +- clocks: phandle to RGA sclk/hclk/aclk clocks + +- clock-names: should be "aclk", "hclk" and "sclk" + +- resets: Must contain an entry for each entry in reset-names. + See ../reset/reset.txt for details. +- reset-names: should be "core", "axi" and "ahb" + +Example: +SoC-specific DT entry: + rga: rga@ff680000 { + compatible = "rockchip,rk3399-rga"; + reg = <0xff680000 0x10000>; + interrupts = ; + clocks = <&cru ACLK_RGA>, <&cru HCLK_RGA>, <&cru SCLK_RGA_CORE>; + clock-names = "aclk", "hclk", "sclk"; + + resets = <&cru SRST_RGA_CORE>, <&cru SRST_A_RGA>, <&cru SRST_H_RGA>; + reset-names = "core, "axi", "ahb"; + }; -- cgit v1.2.3 From defc3a47c53d54e933ecb923c064c36be4cf70e6 Mon Sep 17 00:00:00 2001 From: Hoegeun Kwon Date: Wed, 13 Sep 2017 04:41:52 -0700 Subject: media: exynos-gsc: Add compatible for Exynos 5250 and 5420 SoC version Exynos 5250 and 5420 have different hardware rotation limits. Since we have to distinguish between these two, we add different compatible: samsung,exynos5250-gsc and samsung,exynos5420-gsc. Signed-off-by: Hoegeun Kwon Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab --- Documentation/devicetree/bindings/media/exynos5-gsc.txt | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/exynos5-gsc.txt b/Documentation/devicetree/bindings/media/exynos5-gsc.txt index 26ca25b6d264..0d4fdaedc6f1 100644 --- a/Documentation/devicetree/bindings/media/exynos5-gsc.txt +++ b/Documentation/devicetree/bindings/media/exynos5-gsc.txt @@ -3,8 +3,11 @@ G-Scaler is used for scaling and color space conversion on EXYNOS5 SoCs. Required properties: -- compatible: should be "samsung,exynos5-gsc" (for Exynos 5250, 5420 and - 5422 SoCs) or "samsung,exynos5433-gsc" (Exynos 5433) +- compatible: should be one of + "samsung,exynos5250-gsc" + "samsung,exynos5420-gsc" + "samsung,exynos5433-gsc" + "samsung,exynos5-gsc" (deprecated) - reg: should contain G-Scaler physical address location and length. - interrupts: should contain G-Scaler interrupt number @@ -15,7 +18,7 @@ Optional properties: Example: gsc_0: gsc@0x13e00000 { - compatible = "samsung,exynos5-gsc"; + compatible = "samsung,exynos5250-gsc"; reg = <0x13e00000 0x1000>; interrupts = <0 85 0>; }; -- cgit v1.2.3 From a197c7fccc0d8958ff73e323dcb1985c19d8166f Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Mon, 18 Sep 2017 01:15:53 -0700 Subject: media: dt: bindings: media: Document practices for DT bindings, ports, endpoints Port and endpoint numbering has been omitted in DT binding documentation for a large number of devices. Also common properties the device uses have been missed in binding documentation. Make it explicit that these things need to be documented. Signed-off-by: Sakari Ailus Acked-by: Rob Herring Signed-off-by: Mauro Carvalho Chehab --- Documentation/devicetree/bindings/media/video-interfaces.txt | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt index 852041a7480c..bc8f18fb6730 100644 --- a/Documentation/devicetree/bindings/media/video-interfaces.txt +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt @@ -55,6 +55,15 @@ divided into two separate ITU-R BT.656 8-bit busses. In such case bus-width and data-shift properties can be used to assign physical data lines to each endpoint node (logical bus). +Documenting bindings for devices +-------------------------------- + +All required and optional bindings the device supports shall be explicitly +documented in device DT binding documentation. This also includes port and +endpoint nodes for the device, including unit-addresses and reg properties where +relevant. + +Please also see Documentation/devicetree/bindings/graph.txt . Required properties ------------------- -- cgit v1.2.3 From 7571358dd22dc91dea560f0dde62ce23c033b6b6 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Mon, 18 Sep 2017 01:20:59 -0700 Subject: media: dt: bindings: media: Document data lane numbering without lane reordering Most devices do not support lane reordering and in many cases the documentation of the data-lanes property is incomplete for such devices. Document that in case the lane reordering isn't supported, monotonically incremented values from 0 or 1 shall be used. Signed-off-by: Sakari Ailus Acked-by: Rob Herring Signed-off-by: Mauro Carvalho Chehab --- Documentation/devicetree/bindings/media/video-interfaces.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt index bc8f18fb6730..bd6474920510 100644 --- a/Documentation/devicetree/bindings/media/video-interfaces.txt +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt @@ -108,7 +108,10 @@ Optional endpoint properties determines the logical lane number, while the value of an entry indicates physical lane, e.g. for 2-lane MIPI CSI-2 bus we could have "data-lanes = <1 2>;", assuming the clock lane is on hardware lane 0. - This property is valid for serial busses only (e.g. MIPI CSI-2). + If the hardware does not support lane reordering, monotonically + incremented values shall be used from 0 or 1 onwards, depending on + whether or not there is also a clock lane. This property is valid for + serial busses only (e.g. MIPI CSI-2). - clock-lanes: an array of physical clock lane indexes. Position of an entry determines the logical lane number, while the value of an entry indicates physical lane, e.g. for a MIPI CSI-2 bus we could have "clock-lanes = <0>;", -- cgit v1.2.3 From 18a3dde9db78076755275423b754846a2da000ad Mon Sep 17 00:00:00 2001 From: Vignesh R Date: Tue, 3 Oct 2017 10:49:20 +0530 Subject: mtd: spi-nor: cadence-quadspi: Add TI 66AK2G SoC specific compatible Update binding documentation to add a new compatible for TI 66AK2G SoC, to handle TI SoC specific quirks in the driver. Signed-off-by: Vignesh R Acked-by: Rob Herring Acked-by: Marek Vasut Signed-off-by: Cyrille Pitchen --- Documentation/devicetree/bindings/mtd/cadence-quadspi.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt b/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt index f248056da24c..7dbe3bd9ac56 100644 --- a/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt +++ b/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt @@ -1,7 +1,9 @@ * Cadence Quad SPI controller Required properties: -- compatible : Should be "cdns,qspi-nor". +- compatible : should be one of the following: + Generic default - "cdns,qspi-nor". + For TI 66AK2G SoC - "ti,k2g-qspi", "cdns,qspi-nor". - reg : Contains two entries, each of which is a tuple consisting of a physical address and length. The first entry is the address and length of the controller register set. The second entry is the -- cgit v1.2.3 From 00df263560673cefe3341275990324730d4791d5 Mon Sep 17 00:00:00 2001 From: Vignesh R Date: Tue, 3 Oct 2017 10:49:22 +0530 Subject: mtd: spi-nor: cadence-quadspi: Add new binding to enable loop-back circuit Cadence QSPI IP has a adapted loop-back circuit which can be enabled by setting BYPASS field to 0 in READCAPTURE register. It enables use of QSPI return clock to latch the data rather than the internal QSPI reference clock. For high speed operations, adapted loop-back circuit using QSPI return clock helps to increase data valid window. Add DT parameter cdns,rclk-en to help enable adapted loop-back circuit for boards which do have QSPI return clock provided. Update binding documentation for the same. Signed-off-by: Vignesh R Acked-by: Rob Herring Acked-by: Marek Vasut Signed-off-by: Cyrille Pitchen --- Documentation/devicetree/bindings/mtd/cadence-quadspi.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt b/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt index 7dbe3bd9ac56..bb2075df9b38 100644 --- a/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt +++ b/Documentation/devicetree/bindings/mtd/cadence-quadspi.txt @@ -16,6 +16,9 @@ Required properties: Optional properties: - cdns,is-decoded-cs : Flag to indicate whether decoder is used or not. +- cdns,rclk-en : Flag to indicate that QSPI return clock is used to latch + the read data rather than the QSPI clock. Make sure that QSPI return + clock is populated on the board before using this property. Optional subnodes: Subnodes of the Cadence Quad SPI controller are spi slave nodes with additional -- cgit v1.2.3 From 2ceec8be7d5c7c6b8f4e907c9d46ee3764c19016 Mon Sep 17 00:00:00 2001 From: Tom McLeod Date: Wed, 11 Oct 2017 11:57:50 -0700 Subject: dt-bindings: Add vendor prefix for Opal Kelly Inc Opal Kelly is a manufacturer of FPGA Integration Modules. Signed-off-by: Tom McLeod Cc: Rob Herring Cc: Mark Rutland Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 15c6b33f0b21..01500f2a399b 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -247,6 +247,7 @@ olimex OLIMEX Ltd. onion Onion Corporation onnn ON Semiconductor Corp. ontat On Tat Industrial Company +opalkelly Opal Kelly Incorporated opencores OpenCores.org option Option NV ORCL Oracle Corporation -- cgit v1.2.3 From f2f5afd3845c88e96e863ae31f6a7587906af0e6 Mon Sep 17 00:00:00 2001 From: Divagar Mohandass Date: Tue, 10 Oct 2017 11:30:35 +0530 Subject: dt-bindings: add eeprom "size" property This adds eeprom "size" as optional property for i2c eeproms. The "size" property allows explicitly specifying the size of the EEPROM chip in bytes. Acked-by: Rob Herring Reviewed-by: Sakari Ailus Signed-off-by: Divagar Mohandass Signed-off-by: Wolfram Sang --- Documentation/devicetree/bindings/eeprom/eeprom.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/eeprom/eeprom.txt b/Documentation/devicetree/bindings/eeprom/eeprom.txt index afc04589eadf..27f2bc15298a 100644 --- a/Documentation/devicetree/bindings/eeprom/eeprom.txt +++ b/Documentation/devicetree/bindings/eeprom/eeprom.txt @@ -36,6 +36,8 @@ Optional properties: - read-only: this parameterless property disables writes to the eeprom + - size: total eeprom size in bytes + Example: eeprom@52 { -- cgit v1.2.3 From 15e9833e22cc6e2f882639662b90eef02ef7583e Mon Sep 17 00:00:00 2001 From: Franklin S Cooper Jr Date: Mon, 11 Sep 2017 15:11:45 -0500 Subject: dt-bindings: i2c: i2c-davinci: Update binding for 66AK2Gx pwr dm property Add pm-domains property which is required for 66AK2Gx. Also document 66AK2G unique clocks property usage. Signed-off-by: Franklin S Cooper Jr Acked-by: Rob Herring Acked-by: Sekhar Nori Signed-off-by: Wolfram Sang --- Documentation/devicetree/bindings/i2c/i2c-davinci.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/i2c/i2c-davinci.txt b/Documentation/devicetree/bindings/i2c/i2c-davinci.txt index 5b123e0e4cc2..64e6e656c345 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-davinci.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-davinci.txt @@ -6,6 +6,18 @@ davinci/keystone i2c interface contains. Required properties: - compatible: "ti,davinci-i2c" or "ti,keystone-i2c"; - reg : Offset and length of the register set for the device +- clocks: I2C functional clock phandle. + For 66AK2G this property should be set per binding, + Documentation/devicetree/bindings/clock/ti,sci-clk.txt + +SoC-specific Required Properties: + +The following are mandatory properties for Keystone 2 66AK2G SoCs only: + +- power-domains: Should contain a phandle to a PM domain provider node + and an args specifier containing the I2C device id + value. This property is as per the binding, + Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt Recommended properties : - interrupts : standard interrupt property. -- cgit v1.2.3 From db6b78073ac135bb68cae77bb873371d0fe0efa6 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Fri, 13 Oct 2017 15:23:55 +0300 Subject: i2c: rcar: document R8A77970 bindings R-Car V3M (R8A77970) SoC also has the R-Car gen3 compatible I2C controller, so document the SoC specific bindings. Signed-off-by: Sergei Shtylyov Reviewed-by: Simon Horman Reviewed-by: Geert Uytterhoeven Signed-off-by: Wolfram Sang --- Documentation/devicetree/bindings/i2c/i2c-rcar.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt index cad39aee9f73..a777477e4547 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt @@ -13,6 +13,7 @@ Required properties: "renesas,i2c-r8a7794" if the device is a part of a R8A7794 SoC. "renesas,i2c-r8a7795" if the device is a part of a R8A7795 SoC. "renesas,i2c-r8a7796" if the device is a part of a R8A7796 SoC. + "renesas,i2c-r8a77970" if the device is a part of a R8A77970 SoC. "renesas,rcar-gen1-i2c" for a generic R-Car Gen1 compatible device. "renesas,rcar-gen2-i2c" for a generic R-Car Gen2 or RZ/G1 compatible device. -- cgit v1.2.3 From 0290c4ca2536a35e55c53cfb9058465b1f987b17 Mon Sep 17 00:00:00 2001 From: Frank Rowand Date: Tue, 17 Oct 2017 16:36:23 -0700 Subject: of: overlay: rename identifiers to more reflect what they do This patch is aimed primarily at drivers/of/overlay.c, but those changes also have a small impact in a few other files. overlay.c is difficult to read and maintain. Improve readability: - Rename functions, types and variables to better reflect what they do and to be consistent with names in other places, such as the device tree overlay FDT (flattened device tree), and make the algorithms more clear - Use the same names consistently throughout the file - Update comments for name changes - Fix incorrect comments This patch is intended to not introduce any functional change. Signed-off-by: Frank Rowand Signed-off-by: Rob Herring --- Documentation/devicetree/overlay-notes.txt | 12 +- drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c | 5 +- drivers/of/dynamic.c | 2 +- drivers/of/overlay.c | 530 ++++++++++++++------------- drivers/of/unittest.c | 20 +- include/linux/of.h | 12 +- 6 files changed, 310 insertions(+), 271 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/overlay-notes.txt b/Documentation/devicetree/overlay-notes.txt index eb7f2685fda1..c4aa0adf13ec 100644 --- a/Documentation/devicetree/overlay-notes.txt +++ b/Documentation/devicetree/overlay-notes.txt @@ -87,15 +87,15 @@ Overlay in-kernel API The API is quite easy to use. -1. Call of_overlay_create() to create and apply an overlay. The return value -is a cookie identifying this overlay. +1. Call of_overlay_apply() to create and apply an overlay changeset. The return +value is an error or a cookie identifying this overlay. -2. Call of_overlay_destroy() to remove and cleanup the overlay previously -created via the call to of_overlay_create(). Removal of an overlay that -is stacked by another will not be permitted. +2. Call of_overlay_remove() to remove and cleanup the overlay changeset +previously created via the call to of_overlay_apply(). Removal of an overlay +changeset that is stacked by another will not be permitted. Finally, if you need to remove all overlays in one-go, just call -of_overlay_destroy_all() which will remove every single one in the correct +of_overlay_remove_all() which will remove every single one in the correct order. Overlay DTS Format diff --git a/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c b/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c index 623a9140493c..5f5b7ba35f1d 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c @@ -247,9 +247,10 @@ static void __init tilcdc_convert_slave_node(void) tilcdc_node_disable(slave); - ret = of_overlay_create(overlay); + ret = of_overlay_apply(overlay); if (ret) - pr_err("%s: Creating overlay failed: %d\n", __func__, ret); + pr_err("%s: Applying overlay changeset failed: %d\n", + __func__, ret); else pr_info("%s: ti,tilcdc,slave node successfully converted\n", __func__); diff --git a/drivers/of/dynamic.c b/drivers/of/dynamic.c index 39e8cf731764..4bc96af4d8e2 100644 --- a/drivers/of/dynamic.c +++ b/drivers/of/dynamic.c @@ -758,7 +758,7 @@ int of_changeset_revert(struct of_changeset *ocs) EXPORT_SYMBOL_GPL(of_changeset_revert); /** - * of_changeset_action - Perform a changeset action + * of_changeset_action - Add an action to the tail of the changeset list * * @ocs: changeset pointer * @action: action to perform diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c index d3f4a5974a11..69610637af88 100644 --- a/drivers/of/overlay.c +++ b/drivers/of/overlay.c @@ -25,67 +25,63 @@ #include "of_private.h" /** - * struct of_overlay_info - Holds a single overlay info + * struct fragment - info about fragment nodes in overlay expanded device tree * @target: target of the overlay operation - * @overlay: pointer to the overlay contents node - * - * Holds a single overlay state, including all the overlay logs & - * records. + * @overlay: pointer to the __overlay__ node */ -struct of_overlay_info { +struct fragment { struct device_node *target; struct device_node *overlay; bool is_symbols_node; }; /** - * struct of_overlay - Holds a complete overlay transaction - * @node: List on which we are located - * @count: Count of ovinfo structures - * @ovinfo_tab: Overlay info table (count sized) - * @cset: Changeset to be used - * - * Holds a complete overlay transaction + * struct overlay_changeset + * @ovcs_list: list on which we are located + * @count: count of @fragments structures + * @fragments: info about fragment nodes in overlay expanded device tree + * @cset: changeset to apply fragments to live device tree */ -struct of_overlay { +struct overlay_changeset { int id; - struct list_head node; + struct list_head ovcs_list; int count; - struct of_overlay_info *ovinfo_tab; + struct fragment *fragments; struct of_changeset cset; }; -static int of_overlay_apply_one(struct of_overlay *ov, - struct device_node *target, const struct device_node *overlay, +static int build_changeset_next_level(struct overlay_changeset *ovcs, + struct device_node *target_node, + const struct device_node *overlay_node, bool is_symbols_node); -static BLOCKING_NOTIFIER_HEAD(of_overlay_chain); +static BLOCKING_NOTIFIER_HEAD(overlay_notify_chain); int of_overlay_notifier_register(struct notifier_block *nb) { - return blocking_notifier_chain_register(&of_overlay_chain, nb); + return blocking_notifier_chain_register(&overlay_notify_chain, nb); } EXPORT_SYMBOL_GPL(of_overlay_notifier_register); int of_overlay_notifier_unregister(struct notifier_block *nb) { - return blocking_notifier_chain_unregister(&of_overlay_chain, nb); + return blocking_notifier_chain_unregister(&overlay_notify_chain, nb); } EXPORT_SYMBOL_GPL(of_overlay_notifier_unregister); -static int of_overlay_notify(struct of_overlay *ov, - enum of_overlay_notify_action action) +static int overlay_notify(struct overlay_changeset *ovcs, + enum of_overlay_notify_action action) { struct of_overlay_notify_data nd; int i, ret; - for (i = 0; i < ov->count; i++) { - struct of_overlay_info *ovinfo = &ov->ovinfo_tab[i]; + for (i = 0; i < ovcs->count; i++) { + struct fragment *fragment = &ovcs->fragments[i]; - nd.target = ovinfo->target; - nd.overlay = ovinfo->overlay; + nd.target = fragment->target; + nd.overlay = fragment->overlay; - ret = blocking_notifier_call_chain(&of_overlay_chain, + ret = blocking_notifier_call_chain(&overlay_notify_chain, action, &nd); if (ret) return notifier_to_errno(ret); @@ -94,10 +90,10 @@ static int of_overlay_notify(struct of_overlay *ov, return 0; } -static struct property *dup_and_fixup_symbol_prop(struct of_overlay *ov, - const struct property *prop) +static struct property *dup_and_fixup_symbol_prop( + struct overlay_changeset *ovcs, const struct property *prop) { - struct of_overlay_info *ovinfo; + struct fragment *fragment; struct property *new; const char *overlay_name; char *label_path; @@ -116,18 +112,18 @@ static struct property *dup_and_fixup_symbol_prop(struct of_overlay *ov, if (!new) return NULL; - for (k = 0; k < ov->count; k++) { - ovinfo = &ov->ovinfo_tab[k]; - overlay_name = ovinfo->overlay->full_name; + for (k = 0; k < ovcs->count; k++) { + fragment = &ovcs->fragments[k]; + overlay_name = fragment->overlay->full_name; overlay_name_len = strlen(overlay_name); if (!strncasecmp(symbol_path, overlay_name, overlay_name_len)) break; } - if (k >= ov->count) + if (k >= ovcs->count) goto err_free; - target_path = ovinfo->target->full_name; + target_path = fragment->target->full_name; target_path_len = strlen(target_path); label_path = symbol_path + overlay_name_len; @@ -156,82 +152,119 @@ static struct property *dup_and_fixup_symbol_prop(struct of_overlay *ov, } -/* +/** + * add_changeset_property() - add @overlay_prop to overlay changeset + * @ovcs: overlay changeset + * @target_node: where to place @overlay_prop in live tree + * @overlay_prop: property to add or update, from overlay tree + * is_symbols_node: 1 if @target_node is "/__symbols__" + * + * If @overlay_prop does not already exist in @target_node, add changeset entry + * to add @overlay_prop in @target_node, else add changeset entry to update + * value of @overlay_prop. + * * Some special properties are not updated (no error returned). + * * Update of property in symbols node is not allowed. + * + * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid @overlay. */ -static int of_overlay_apply_single_property(struct of_overlay *ov, - struct device_node *target, struct property *prop, +static int add_changeset_property(struct overlay_changeset *ovcs, + struct device_node *target_node, + struct property *overlay_prop, bool is_symbols_node) { - struct property *propn = NULL, *tprop; + struct property *new_prop = NULL, *prop; int ret = 0; - tprop = of_find_property(target, prop->name, NULL); + prop = of_find_property(target_node, overlay_prop->name, NULL); - if (!of_prop_cmp(prop->name, "name") || - !of_prop_cmp(prop->name, "phandle") || - !of_prop_cmp(prop->name, "linux,phandle")) + if (!of_prop_cmp(overlay_prop->name, "name") || + !of_prop_cmp(overlay_prop->name, "phandle") || + !of_prop_cmp(overlay_prop->name, "linux,phandle")) return 0; if (is_symbols_node) { - if (tprop) + if (prop) return -EINVAL; - propn = dup_and_fixup_symbol_prop(ov, prop); + new_prop = dup_and_fixup_symbol_prop(ovcs, overlay_prop); } else { - propn = __of_prop_dup(prop, GFP_KERNEL); + new_prop = __of_prop_dup(overlay_prop, GFP_KERNEL); } - if (!propn) + if (!new_prop) return -ENOMEM; - if (!tprop) - ret = of_changeset_add_property(&ov->cset, target, propn); + if (!prop) + ret = of_changeset_add_property(&ovcs->cset, target_node, + new_prop); else - ret = of_changeset_update_property(&ov->cset, target, propn); + ret = of_changeset_update_property(&ovcs->cset, target_node, + new_prop); if (ret) { - kfree(propn->name); - kfree(propn->value); - kfree(propn); + kfree(new_prop->name); + kfree(new_prop->value); + kfree(new_prop); } return ret; } -static int of_overlay_apply_single_device_node(struct of_overlay *ov, - struct device_node *target, struct device_node *child) +/** + * add_changeset_node() - add @node (and children) to overlay changeset + * @ovcs: overlay changeset + * @target_node: where to place @node in live tree + * @node: node from within overlay device tree fragment + * + * If @node does not already exist in @target_node, add changeset entry + * to add @node in @target_node. + * + * If @node already exists in @target_node, and the existing node has + * a phandle, the overlay node is not allowed to have a phandle. + * + * If @node has child nodes, add the children recursively via + * build_changeset_next_level(). + * + * NOTE: Multiple mods of created nodes not supported. + * + * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid @overlay. + */ +static int add_changeset_node(struct overlay_changeset *ovcs, + struct device_node *target_node, struct device_node *node) { - const char *cname; + const char *node_kbasename; struct device_node *tchild; int ret = 0; - cname = kbasename(child->full_name); - if (!cname) + node_kbasename = kbasename(node->full_name); + if (!node_kbasename) return -ENOMEM; - for_each_child_of_node(target, tchild) - if (!of_node_cmp(cname, kbasename(tchild->full_name))) + for_each_child_of_node(target_node, tchild) + if (!of_node_cmp(node_kbasename, kbasename(tchild->full_name))) break; if (tchild) { - if (child->phandle) + if (node->phandle) return -EINVAL; - /* apply overlay recursively */ - ret = of_overlay_apply_one(ov, tchild, child, 0); + ret = build_changeset_next_level(ovcs, tchild, node, 0); of_node_put(tchild); } else { - tchild = __of_node_dup(child, "%pOF/%s", target, cname); + tchild = __of_node_dup(node, "%pOF/%s", + target_node, node_kbasename); if (!tchild) return -ENOMEM; - tchild->parent = target; + tchild->parent = target_node; - ret = of_changeset_attach_node(&ov->cset, tchild); + ret = of_changeset_attach_node(&ovcs->cset, tchild); if (ret) return ret; - ret = of_overlay_apply_one(ov, tchild, child, 0); + ret = build_changeset_next_level(ovcs, tchild, node, 0); if (ret) return ret; } @@ -239,29 +272,37 @@ static int of_overlay_apply_single_device_node(struct of_overlay *ov, return ret; } -/* - * Apply a single overlay node recursively. +/** + * build_changeset_next_level() - add level of overlay changeset + * @ovcs: overlay changeset + * @target_node: where to place @overlay_node in live tree + * @overlay_node: node from within an overlay device tree fragment + * @is_symbols_node: @overlay_node is node "/__symbols__" * - * Note that the in case of an error the target node is left - * in a inconsistent state. Error recovery should be performed - * by using the changeset. + * Add the properties (if any) and nodes (if any) from @overlay_node to the + * @ovcs->cset changeset. If an added node has child nodes, they will + * be added recursively. * * Do not allow symbols node to have any children. + * + * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid @overlay_node. */ -static int of_overlay_apply_one(struct of_overlay *ov, - struct device_node *target, const struct device_node *overlay, +static int build_changeset_next_level(struct overlay_changeset *ovcs, + struct device_node *target_node, + const struct device_node *overlay_node, bool is_symbols_node) { struct device_node *child; struct property *prop; int ret; - for_each_property_of_node(overlay, prop) { - ret = of_overlay_apply_single_property(ov, target, prop, - is_symbols_node); + for_each_property_of_node(overlay_node, prop) { + ret = add_changeset_property(ovcs, target_node, prop, + is_symbols_node); if (ret) { pr_err("Failed to apply prop @%pOF/%s\n", - target, prop->name); + target_node, prop->name); return ret; } } @@ -269,11 +310,11 @@ static int of_overlay_apply_one(struct of_overlay *ov, if (is_symbols_node) return 0; - for_each_child_of_node(overlay, child) { - ret = of_overlay_apply_single_device_node(ov, target, child); + for_each_child_of_node(overlay_node, child) { + ret = add_changeset_node(ovcs, target_node, child); if (ret) { - pr_err("Failed to apply single node @%pOF/%s\n", - target, child->name); + pr_err("Failed to apply node @%pOF/%s\n", + target_node, child->name); of_node_put(child); return ret; } @@ -283,26 +324,30 @@ static int of_overlay_apply_one(struct of_overlay *ov, } /** - * of_overlay_apply() - Apply @count overlays pointed at by @ovinfo_tab - * @ov: Overlay to apply + * build_changeset() - populate overlay changeset in @ovcs from @ovcs->fragments + * @ovcs: Overlay changeset * - * Applies the overlays given, while handling all error conditions - * appropriately. Either the operation succeeds, or if it fails the - * live tree is reverted to the state before the attempt. - * Returns 0, or an error if the overlay attempt failed. + * Create changeset @ovcs->cset to contain the nodes and properties of the + * overlay device tree fragments in @ovcs->fragments[]. If an error occurs, + * any portions of the changeset that were successfully created will remain + * in @ovcs->cset. + * + * Returns 0 on success, -ENOMEM if memory allocation failure, or -EINVAL if + * invalid overlay in @ovcs->fragments[]. */ -static int of_overlay_apply(struct of_overlay *ov) +static int build_changeset(struct overlay_changeset *ovcs) { - int i, err; + int i, ret; - for (i = 0; i < ov->count; i++) { - struct of_overlay_info *ovinfo = &ov->ovinfo_tab[i]; + for (i = 0; i < ovcs->count; i++) { + struct fragment *fragment = &ovcs->fragments[i]; - err = of_overlay_apply_one(ov, ovinfo->target, ovinfo->overlay, - ovinfo->is_symbols_node); - if (err) { - pr_err("apply failed '%pOF'\n", ovinfo->target); - return err; + ret = build_changeset_next_level(ovcs, fragment->target, + fragment->overlay, + fragment->is_symbols_node); + if (ret) { + pr_err("apply failed '%pOF'\n", fragment->target); + return ret; } } @@ -350,45 +395,46 @@ static struct device_node *find_target_node(struct device_node *info_node) * * Returns 0 on success, or a negative error value. */ -static int of_fill_overlay_info(struct of_overlay *ov, - struct device_node *info_node, struct of_overlay_info *ovinfo) +static int of_fill_overlay_info(struct overlay_changeset *ovcset, + struct device_node *info_node, struct fragment *fragment) { - ovinfo->overlay = of_get_child_by_name(info_node, "__overlay__"); - if (!ovinfo->overlay) + fragment->overlay = of_get_child_by_name(info_node, "__overlay__"); + if (!fragment->overlay) goto err_fail; - ovinfo->target = find_target_node(info_node); - if (!ovinfo->target) + fragment->target = find_target_node(info_node); + if (!fragment->target) goto err_fail; return 0; err_fail: - of_node_put(ovinfo->target); - of_node_put(ovinfo->overlay); + of_node_put(fragment->target); + of_node_put(fragment->overlay); - memset(ovinfo, 0, sizeof(*ovinfo)); + memset(fragment, 0, sizeof(*fragment)); return -EINVAL; } /** - * of_build_overlay_info() - Build an overlay info array - * @ov Overlay to build - * @tree: Device node containing all the overlays + * init_overlay_changeset() - initialize overlay changeset from overlay tree + * @ovcs Overlay changeset to build + * @tree: Contains all the overlay fragments and overlay fixup nodes * - * Helper function that given a tree containing overlay information, - * allocates and builds an overlay info array containing it, ready - * for use using of_overlay_apply. + * Initialize @ovcs. Populate @ovcs->fragments with node information from + * the top level of @tree. The relevant top level nodes are the fragment + * nodes and the __symbols__ node. Any other top level node will be ignored. * - * Returns 0 on success with the @cntp @ovinfop pointers valid, - * while on error a negative error value is returned. + * Returns 0 on success, -ENOMEM if memory allocation failure, -EINVAL if error + * detected in @tree, or -ENODEV if no valid nodes found. */ -static int of_build_overlay_info(struct of_overlay *ov, +static int init_overlay_changeset(struct overlay_changeset *ovcs, struct device_node *tree) { struct device_node *node; - struct of_overlay_info *ovinfo; - int cnt, err; + struct fragment *fragment; + struct fragment *fragments; + int cnt, ret; cnt = 0; for_each_child_of_node(tree, node) @@ -397,24 +443,25 @@ static int of_build_overlay_info(struct of_overlay *ov, if (of_get_child_by_name(tree, "__symbols__")) cnt++; - ovinfo = kcalloc(cnt, sizeof(*ovinfo), GFP_KERNEL); - if (!ovinfo) + fragments = kcalloc(cnt, sizeof(*fragments), GFP_KERNEL); + if (!fragments) return -ENOMEM; cnt = 0; for_each_child_of_node(tree, node) { - err = of_fill_overlay_info(ov, node, &ovinfo[cnt]); - if (!err) + ret = of_fill_overlay_info(ovcs, node, &fragments[cnt]); + if (!ret) cnt++; } node = of_get_child_by_name(tree, "__symbols__"); if (node) { - ovinfo[cnt].overlay = node; - ovinfo[cnt].target = of_find_node_by_path("/__symbols__"); - ovinfo[cnt].is_symbols_node = 1; + fragment = &fragments[cnt]; + fragment->overlay = node; + fragment->target = of_find_node_by_path("/__symbols__"); + fragment->is_symbols_node = 1; - if (!ovinfo[cnt].target) { + if (!fragment->target) { pr_err("no symbols in root of device tree.\n"); return -EINVAL; } @@ -423,137 +470,127 @@ static int of_build_overlay_info(struct of_overlay *ov, } if (!cnt) { - kfree(ovinfo); + kfree(fragments); return -ENODEV; } - ov->count = cnt; - ov->ovinfo_tab = ovinfo; + ovcs->count = cnt; + ovcs->fragments = fragments; return 0; } /** - * of_free_overlay_info() - Free an overlay info array - * @ov Overlay to free the overlay info from - * @ovinfo_tab: Array of overlay_info's to free + * free_overlay_fragments() - Free a fragments array + * @ovcs Overlay to free the overlay info from * - * Releases the memory of a previously allocated ovinfo array - * by of_build_overlay_info. - * Returns 0, or an error if the arguments are bogus. + * Frees the memory of an ovcs->fragments[] array. */ -static int of_free_overlay_info(struct of_overlay *ov) +static void free_overlay_fragments(struct overlay_changeset *ovcs) { - struct of_overlay_info *ovinfo; int i; /* do it in reverse */ - for (i = ov->count - 1; i >= 0; i--) { - ovinfo = &ov->ovinfo_tab[i]; - - of_node_put(ovinfo->target); - of_node_put(ovinfo->overlay); + for (i = ovcs->count - 1; i >= 0; i--) { + of_node_put(ovcs->fragments[i].target); + of_node_put(ovcs->fragments[i].overlay); } - kfree(ov->ovinfo_tab); - return 0; + kfree(ovcs->fragments); } -static LIST_HEAD(ov_list); -static DEFINE_IDR(ov_idr); +static LIST_HEAD(ovcs_list); +static DEFINE_IDR(ovcs_idr); /** - * of_overlay_create() - Create and apply an overlay - * @tree: Device node containing all the overlays + * of_overlay_apply() - Create and apply an overlay changeset + * @tree: Expanded overlay device tree * - * Creates and applies an overlay while also keeping track - * of the overlay in a list. This list can be used to prevent - * illegal overlay removals. + * Creates and applies an overlay changeset. If successful, the overlay + * changeset is added to the overlay changeset list. * - * Returns the id of the created overlay, or a negative error number + * Returns the id of the created overlay changeset, or a negative error number */ -int of_overlay_create(struct device_node *tree) +int of_overlay_apply(struct device_node *tree) { - struct of_overlay *ov; - int err, id; + struct overlay_changeset *ovcs; + int id, ret; - ov = kzalloc(sizeof(*ov), GFP_KERNEL); - if (!ov) + ovcs = kzalloc(sizeof(*ovcs), GFP_KERNEL); + if (!ovcs) return -ENOMEM; - ov->id = -1; + ovcs->id = -1; - INIT_LIST_HEAD(&ov->node); + INIT_LIST_HEAD(&ovcs->ovcs_list); - of_changeset_init(&ov->cset); + of_changeset_init(&ovcs->cset); mutex_lock(&of_mutex); - id = idr_alloc(&ov_idr, ov, 0, 0, GFP_KERNEL); + id = idr_alloc(&ovcs_idr, ovcs, 0, 0, GFP_KERNEL); if (id < 0) { - err = id; + ret = id; goto err_destroy_trans; } - ov->id = id; + ovcs->id = id; - err = of_build_overlay_info(ov, tree); - if (err) { - pr_err("of_build_overlay_info() failed for tree@%pOF\n", + ret = init_overlay_changeset(ovcs, tree); + if (ret) { + pr_err("init_overlay_changeset() failed for tree@%pOF\n", tree); goto err_free_idr; } - err = of_overlay_notify(ov, OF_OVERLAY_PRE_APPLY); - if (err < 0) { - pr_err("%s: Pre-apply notifier failed (err=%d)\n", - __func__, err); - goto err_free_idr; + ret = overlay_notify(ovcs, OF_OVERLAY_PRE_APPLY); + if (ret < 0) { + pr_err("%s: Pre-apply notifier failed (ret=%d)\n", + __func__, ret); + goto err_free_overlay_fragments; } - err = of_overlay_apply(ov); - if (err) - goto err_abort_trans; - - err = __of_changeset_apply(&ov->cset); - if (err) - goto err_revert_overlay; + ret = build_changeset(ovcs); + if (ret) + goto err_free_overlay_fragments; + ret = __of_changeset_apply(&ovcs->cset); + if (ret) + goto err_free_overlay_fragments; - list_add_tail(&ov->node, &ov_list); + list_add_tail(&ovcs->ovcs_list, &ovcs_list); - of_overlay_notify(ov, OF_OVERLAY_POST_APPLY); + overlay_notify(ovcs, OF_OVERLAY_POST_APPLY); mutex_unlock(&of_mutex); return id; -err_revert_overlay: -err_abort_trans: - of_free_overlay_info(ov); +err_free_overlay_fragments: + free_overlay_fragments(ovcs); err_free_idr: - idr_remove(&ov_idr, ov->id); + idr_remove(&ovcs_idr, ovcs->id); err_destroy_trans: - of_changeset_destroy(&ov->cset); - kfree(ov); + of_changeset_destroy(&ovcs->cset); + kfree(ovcs); mutex_unlock(&of_mutex); - return err; + return ret; } -EXPORT_SYMBOL_GPL(of_overlay_create); +EXPORT_SYMBOL_GPL(of_overlay_apply); /* - * check whether the given node, lies under the given tree - * return 1 if under tree, else 0 + * Find @np in @tree. + * + * Returns 1 if @np is @tree or is contained in @tree, else 0 */ -static int overlay_subtree_check(struct device_node *tree, - struct device_node *dn) +static int find_node(struct device_node *tree, struct device_node *np) { struct device_node *child; - if (tree == dn) + if (tree == np) return 1; for_each_child_of_node(tree, child) { - if (overlay_subtree_check(child, dn)) { + if (find_node(child, np)) { of_node_put(child); return 1; } @@ -563,30 +600,32 @@ static int overlay_subtree_check(struct device_node *tree, } /* - * check whether this overlay is the topmost - * return 1 if topmost, else 0 + * Is @remove_ce_np a child of or the same as any + * node in an overlay changeset more topmost than @remove_ovcs? + * + * Returns 1 if found, else 0 */ -static int overlay_is_topmost(struct of_overlay *ov, struct device_node *dn) +static int node_in_later_cs(struct overlay_changeset *remove_ovcs, + struct device_node *remove_ce_np) { - struct of_overlay *ovt; + struct overlay_changeset *ovcs; struct of_changeset_entry *ce; - list_for_each_entry_reverse(ovt, &ov_list, node) { - /* if we hit ourselves, we're done */ - if (ovt == ov) + list_for_each_entry_reverse(ovcs, &ovcs_list, ovcs_list) { + if (ovcs == remove_ovcs) break; - /* check against each subtree affected by this overlay */ - list_for_each_entry(ce, &ovt->cset.entries, node) { - if (overlay_subtree_check(ce->np, dn)) { + list_for_each_entry(ce, &ovcs->cset.entries, node) { + if (find_node(ce->np, remove_ce_np)) { pr_err("%s: #%d clashes #%d @%pOF\n", - __func__, ov->id, ovt->id, dn); - return 0; + __func__, remove_ovcs->id, ovcs->id, + remove_ce_np); + return 1; } } } - return 1; + return 0; } /* @@ -599,13 +638,13 @@ static int overlay_is_topmost(struct of_overlay *ov, struct device_node *dn) * the one closest to the tail. If another overlay has affected this * device node and is closest to the tail, then removal is not permited. */ -static int overlay_removal_is_ok(struct of_overlay *ov) +static int overlay_removal_is_ok(struct overlay_changeset *remove_ovcs) { - struct of_changeset_entry *ce; + struct of_changeset_entry *remove_ce; - list_for_each_entry(ce, &ov->cset.entries, node) { - if (!overlay_is_topmost(ov, ce->np)) { - pr_err("overlay #%d is not topmost\n", ov->id); + list_for_each_entry(remove_ce, &remove_ovcs->cset.entries, node) { + if (node_in_later_cs(remove_ovcs, remove_ce->np)) { + pr_err("overlay #%d is not topmost\n", remove_ovcs->id); return 0; } } @@ -614,74 +653,73 @@ static int overlay_removal_is_ok(struct of_overlay *ov) } /** - * of_overlay_destroy() - Removes an overlay - * @id: Overlay id number returned by a previous call to of_overlay_create + * of_overlay_remove() - Revert and free an overlay changeset + * @ovcs_id: Overlay changeset id number * - * Removes an overlay if it is permissible. + * Removes an overlay if it is permissible. ovcs_id was previously returned + * by of_overlay_apply(). * * Returns 0 on success, or a negative error number */ -int of_overlay_destroy(int id) +int of_overlay_remove(int ovcs_id) { - struct of_overlay *ov; - int err; + struct overlay_changeset *ovcs; + int ret = 0; mutex_lock(&of_mutex); - ov = idr_find(&ov_idr, id); - if (!ov) { - err = -ENODEV; - pr_err("destroy: Could not find overlay #%d\n", id); + ovcs = idr_find(&ovcs_idr, ovcs_id); + if (!ovcs) { + ret = -ENODEV; + pr_err("remove: Could not find overlay #%d\n", ovcs_id); goto out; } - if (!overlay_removal_is_ok(ov)) { - err = -EBUSY; + if (!overlay_removal_is_ok(ovcs)) { + ret = -EBUSY; goto out; } - of_overlay_notify(ov, OF_OVERLAY_PRE_REMOVE); - list_del(&ov->node); - __of_changeset_revert(&ov->cset); - of_overlay_notify(ov, OF_OVERLAY_POST_REMOVE); - of_free_overlay_info(ov); - idr_remove(&ov_idr, id); - of_changeset_destroy(&ov->cset); - kfree(ov); - - err = 0; + overlay_notify(ovcs, OF_OVERLAY_PRE_REMOVE); + list_del(&ovcs->ovcs_list); + __of_changeset_revert(&ovcs->cset); + overlay_notify(ovcs, OF_OVERLAY_POST_REMOVE); + free_overlay_fragments(ovcs); + idr_remove(&ovcs_idr, ovcs_id); + of_changeset_destroy(&ovcs->cset); + kfree(ovcs); out: mutex_unlock(&of_mutex); - return err; + return ret; } -EXPORT_SYMBOL_GPL(of_overlay_destroy); +EXPORT_SYMBOL_GPL(of_overlay_remove); /** - * of_overlay_destroy_all() - Removes all overlays from the system + * of_overlay_remove_all() - Reverts and frees all overlay changesets * * Removes all overlays from the system in the correct order. * * Returns 0 on success, or a negative error number */ -int of_overlay_destroy_all(void) +int of_overlay_remove_all(void) { - struct of_overlay *ov, *ovn; + struct overlay_changeset *ovcs, *ovcs_n; mutex_lock(&of_mutex); /* the tail of list is guaranteed to be safe to remove */ - list_for_each_entry_safe_reverse(ov, ovn, &ov_list, node) { - list_del(&ov->node); - __of_changeset_revert(&ov->cset); - of_free_overlay_info(ov); - idr_remove(&ov_idr, ov->id); - kfree(ov); + list_for_each_entry_safe_reverse(ovcs, ovcs_n, &ovcs_list, ovcs_list) { + list_del(&ovcs->ovcs_list); + __of_changeset_revert(&ovcs->cset); + free_overlay_fragments(ovcs); + idr_remove(&ovcs_idr, ovcs->id); + kfree(ovcs); } mutex_unlock(&of_mutex); return 0; } -EXPORT_SYMBOL_GPL(of_overlay_destroy_all); +EXPORT_SYMBOL_GPL(of_overlay_remove_all); diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index add02cfbfb88..bbdaf5606820 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -1230,7 +1230,7 @@ static void of_unittest_destroy_tracked_overlays(void) if (!(overlay_id_bits[BIT_WORD(id)] & BIT_MASK(id))) continue; - ret = of_overlay_destroy(id + overlay_first_id); + ret = of_overlay_remove(id + overlay_first_id); if (ret == -ENODEV) { pr_warn("%s: no overlay to destroy for #%d\n", __func__, id + overlay_first_id); @@ -1262,7 +1262,7 @@ static int of_unittest_apply_overlay(int overlay_nr, int unittest_nr, goto out; } - ret = of_overlay_create(np); + ret = of_overlay_apply(np); if (ret < 0) { unittest(0, "could not create overlay from \"%s\"\n", overlay_path(overlay_nr)); @@ -1347,7 +1347,7 @@ static int of_unittest_apply_revert_overlay_check(int overlay_nr, return -EINVAL; } - ret = of_overlay_destroy(ov_id); + ret = of_overlay_remove(ov_id); if (ret != 0) { unittest(0, "overlay @\"%s\" failed to be destroyed @\"%s\"\n", overlay_path(overlay_nr), @@ -1476,7 +1476,7 @@ static void of_unittest_overlay_6(void) return; } - ret = of_overlay_create(np); + ret = of_overlay_apply(np); if (ret < 0) { unittest(0, "could not create overlay from \"%s\"\n", overlay_path(overlay_nr + i)); @@ -1500,7 +1500,7 @@ static void of_unittest_overlay_6(void) } for (i = 1; i >= 0; i--) { - ret = of_overlay_destroy(ov_id[i]); + ret = of_overlay_remove(ov_id[i]); if (ret != 0) { unittest(0, "overlay @\"%s\" failed destroy @\"%s\"\n", overlay_path(overlay_nr + i), @@ -1546,7 +1546,7 @@ static void of_unittest_overlay_8(void) return; } - ret = of_overlay_create(np); + ret = of_overlay_apply(np); if (ret < 0) { unittest(0, "could not create overlay from \"%s\"\n", overlay_path(overlay_nr + i)); @@ -1557,7 +1557,7 @@ static void of_unittest_overlay_8(void) } /* now try to remove first overlay (it should fail) */ - ret = of_overlay_destroy(ov_id[0]); + ret = of_overlay_remove(ov_id[0]); if (ret == 0) { unittest(0, "overlay @\"%s\" was destroyed @\"%s\"\n", overlay_path(overlay_nr + 0), @@ -1568,7 +1568,7 @@ static void of_unittest_overlay_8(void) /* removing them in order should work */ for (i = 1; i >= 0; i--) { - ret = of_overlay_destroy(ov_id[i]); + ret = of_overlay_remove(ov_id[i]); if (ret != 0) { unittest(0, "overlay @\"%s\" not destroyed @\"%s\"\n", overlay_path(overlay_nr + i), @@ -2149,9 +2149,9 @@ static int __init overlay_data_add(int onum) goto out_free_np_overlay; } - ret = of_overlay_create(info->np_overlay); + ret = of_overlay_apply(info->np_overlay); if (ret < 0) { - pr_err("of_overlay_create() (ret=%d), %d\n", ret, onum); + pr_err("of_overlay_apply() (ret=%d), %d\n", ret, onum); goto out_free_np_overlay; } else { info->overlay_id = ret; diff --git a/include/linux/of.h b/include/linux/of.h index 7b0f17be7830..7569e9cc45de 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -1312,26 +1312,26 @@ struct of_overlay_notify_data { #ifdef CONFIG_OF_OVERLAY /* ID based overlays; the API for external users */ -int of_overlay_create(struct device_node *tree); -int of_overlay_destroy(int id); -int of_overlay_destroy_all(void); +int of_overlay_apply(struct device_node *tree); +int of_overlay_remove(int id); +int of_overlay_remove_all(void); int of_overlay_notifier_register(struct notifier_block *nb); int of_overlay_notifier_unregister(struct notifier_block *nb); #else -static inline int of_overlay_create(struct device_node *tree) +static inline int of_overlay_apply(struct device_node *tree) { return -ENOTSUPP; } -static inline int of_overlay_destroy(int id) +static inline int of_overlay_remove(int id) { return -ENOTSUPP; } -static inline int of_overlay_destroy_all(void) +static inline int of_overlay_remove_all(void) { return -ENOTSUPP; } -- cgit v1.2.3 From a68f4a27f55f1d54e35c270aff89383da4b1b656 Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 18 Oct 2017 11:36:39 +0100 Subject: rxrpc: Support service upgrade from a kernel service Provide support for a kernel service to make use of the service upgrade facility. This involves: (1) Pass an upgrade request flag to rxrpc_kernel_begin_call(). (2) Make rxrpc_kernel_recv_data() return the call's current service ID so that the caller can detect service upgrade and see what the service was upgraded to. Signed-off-by: David Howells --- Documentation/networking/rxrpc.txt | 17 +++++++++++++++-- fs/afs/internal.h | 1 + fs/afs/rxrpc.c | 11 +++++++---- include/net/af_rxrpc.h | 5 +++-- net/rxrpc/af_rxrpc.c | 5 ++++- net/rxrpc/recvmsg.c | 5 ++++- 6 files changed, 34 insertions(+), 10 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/rxrpc.txt b/Documentation/networking/rxrpc.txt index 810620153a44..9fb61a6bc7cf 100644 --- a/Documentation/networking/rxrpc.txt +++ b/Documentation/networking/rxrpc.txt @@ -782,7 +782,9 @@ The kernel interface functions are as follows: struct key *key, unsigned long user_call_ID, s64 tx_total_len, - gfp_t gfp); + gfp_t gfp, + rxrpc_notify_rx_t notify_rx, + bool upgrade); This allocates the infrastructure to make a new RxRPC call and assigns call and connection numbers. The call will be made on the UDP port that @@ -803,6 +805,13 @@ The kernel interface functions are as follows: allows the kernel to encrypt directly to the packet buffers, thereby saving a copy. The value may not be less than -1. + notify_rx is a pointer to a function to be called when events such as + incoming data packets or remote aborts happen. + + upgrade should be set to true if a client operation should request that + the server upgrade the service to a better one. The resultant service ID + is returned by rxrpc_kernel_recv_data(). + If this function is successful, an opaque reference to the RxRPC call is returned. The caller now holds a reference on this and it must be properly ended. @@ -850,7 +859,8 @@ The kernel interface functions are as follows: size_t size, size_t *_offset, bool want_more, - u32 *_abort) + u32 *_abort, + u16 *_service) This is used to receive data from either the reply part of a client call or the request part of a service call. buf and size specify how much @@ -873,6 +883,9 @@ The kernel interface functions are as follows: If a remote ABORT is detected, the abort code received will be stored in *_abort and ECONNABORTED will be returned. + The service ID that the call ended up with is returned into *_service. + This can be used to see if a call got a service upgrade. + (*) Abort a call. void rxrpc_kernel_abort_call(struct socket *sock, diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 82e16556afea..3f03f7888302 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -100,6 +100,7 @@ struct afs_call { bool send_pages; /* T if data from mapping should be sent */ bool need_attention; /* T if RxRPC poked us */ bool async; /* T if asynchronous */ + bool upgrade; /* T to request service upgrade */ u16 service_id; /* RxRPC service ID to call */ __be16 port; /* target UDP port */ u32 operation_ID; /* operation ID for an incoming call */ diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c index 0bf191f0dbaf..172a4f9747ac 100644 --- a/fs/afs/rxrpc.c +++ b/fs/afs/rxrpc.c @@ -387,7 +387,8 @@ int afs_make_call(struct in_addr *addr, struct afs_call *call, gfp_t gfp, tx_total_len, gfp, (async ? afs_wake_up_async_call : - afs_wake_up_call_waiter)); + afs_wake_up_call_waiter), + call->upgrade); call->key = NULL; if (IS_ERR(rxcall)) { ret = PTR_ERR(rxcall); @@ -443,7 +444,7 @@ error_do_abort: abort_code = 0; offset = 0; rxrpc_kernel_recv_data(afs_socket, rxcall, NULL, 0, &offset, - false, &abort_code); + false, &abort_code, &call->service_id); ret = call->type->abort_to_error(abort_code); } error_kill_call: @@ -471,7 +472,8 @@ static void afs_deliver_to_call(struct afs_call *call) size_t offset = 0; ret = rxrpc_kernel_recv_data(afs_socket, call->rxcall, NULL, 0, &offset, false, - &call->abort_code); + &call->abort_code, + &call->service_id); trace_afs_recv_data(call, 0, offset, false, ret); if (ret == -EINPROGRESS || ret == -EAGAIN) @@ -851,7 +853,8 @@ int afs_extract_data(struct afs_call *call, void *buf, size_t count, ret = rxrpc_kernel_recv_data(afs_socket, call->rxcall, buf, count, &call->offset, - want_more, &call->abort_code); + want_more, &call->abort_code, + &call->service_id); trace_afs_recv_data(call, count, call->offset, want_more, ret); if (ret == 0 || ret == -EAGAIN) return ret; diff --git a/include/net/af_rxrpc.h b/include/net/af_rxrpc.h index 3ac79150291f..820dd365a08e 100644 --- a/include/net/af_rxrpc.h +++ b/include/net/af_rxrpc.h @@ -49,12 +49,13 @@ struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *, unsigned long, s64, gfp_t, - rxrpc_notify_rx_t); + rxrpc_notify_rx_t, + bool); int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *, struct msghdr *, size_t, rxrpc_notify_end_tx_t); int rxrpc_kernel_recv_data(struct socket *, struct rxrpc_call *, - void *, size_t, size_t *, bool, u32 *); + void *, size_t, size_t *, bool, u32 *, u16 *); bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *, u32, int, const char *); void rxrpc_kernel_end_call(struct socket *, struct rxrpc_call *); diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c index fb17552fd292..481f7dc90ba2 100644 --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@ -265,6 +265,7 @@ static int rxrpc_listen(struct socket *sock, int backlog) * @tx_total_len: Total length of data to transmit during the call (or -1) * @gfp: The allocation constraints * @notify_rx: Where to send notifications instead of socket queue + * @upgrade: Request service upgrade for call * * Allow a kernel service to begin a call on the nominated socket. This just * sets up all the internal tracking structures and allocates connection and @@ -279,7 +280,8 @@ struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *sock, unsigned long user_call_ID, s64 tx_total_len, gfp_t gfp, - rxrpc_notify_rx_t notify_rx) + rxrpc_notify_rx_t notify_rx, + bool upgrade) { struct rxrpc_conn_parameters cp; struct rxrpc_call *call; @@ -304,6 +306,7 @@ struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *sock, cp.key = key; cp.security_level = 0; cp.exclusive = false; + cp.upgrade = upgrade; cp.service_id = srx->srx_service; call = rxrpc_new_client_call(rx, &cp, srx, user_call_ID, tx_total_len, gfp); diff --git a/net/rxrpc/recvmsg.c b/net/rxrpc/recvmsg.c index bdece21f313d..e4937b3f3685 100644 --- a/net/rxrpc/recvmsg.c +++ b/net/rxrpc/recvmsg.c @@ -607,6 +607,7 @@ wait_error: * @_offset: The running offset into the buffer. * @want_more: True if more data is expected to be read * @_abort: Where the abort code is stored if -ECONNABORTED is returned + * @_service: Where to store the actual service ID (may be upgraded) * * Allow a kernel service to receive data and pick up information about the * state of a call. Returns 0 if got what was asked for and there's more @@ -624,7 +625,7 @@ wait_error: */ int rxrpc_kernel_recv_data(struct socket *sock, struct rxrpc_call *call, void *buf, size_t size, size_t *_offset, - bool want_more, u32 *_abort) + bool want_more, u32 *_abort, u16 *_service) { struct iov_iter iter; struct kvec iov; @@ -680,6 +681,8 @@ int rxrpc_kernel_recv_data(struct socket *sock, struct rxrpc_call *call, read_phase_complete: ret = 1; out: + if (_service) + *_service = call->service_id; mutex_unlock(&call->user_mutex); _leave(" = %d [%zu,%d]", ret, *_offset, *_abort); return ret; -- cgit v1.2.3 From f4d15fb6f99af9b99f688bd87579137be44f85ee Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 18 Oct 2017 11:07:31 +0100 Subject: rxrpc: Provide functions for allowing cleaner handling of signals Provide a couple of functions to allow cleaner handling of signals in a kernel service. They are: (1) rxrpc_kernel_get_rtt() This allows the kernel service to find out the RTT time for a call, so as to better judge how large a timeout to employ. Note, though, that whilst this returns a value in nanoseconds, the timeouts can only actually be in jiffies. (2) rxrpc_kernel_check_life() This returns a number that is updated when ACKs are received from the peer (notably including PING RESPONSE ACKs which we can elicit by sending PING ACKs to see if the call still exists on the server). The caller should compare the numbers of two calls to see if the call is still alive. These can be used to provide an extending timeout rather than returning immediately in the case that a signal occurs that would otherwise abort an RPC operation. The timeout would be extended if the server is still responsive and the call is still apparently alive on the server. For most operations this isn't that necessary - but for FS.StoreData it is: OpenAFS writes the data to storage as it comes in without making a backup, so if we immediately abort it when partially complete on a CTRL+C, say, we have no idea of the state of the file after the abort. Signed-off-by: David Howells --- Documentation/networking/rxrpc.txt | 24 ++++++++++++++++++++++++ include/net/af_rxrpc.h | 2 ++ net/rxrpc/af_rxrpc.c | 19 +++++++++++++++++++ net/rxrpc/peer_object.c | 13 +++++++++++++ 4 files changed, 58 insertions(+) (limited to 'Documentation') diff --git a/Documentation/networking/rxrpc.txt b/Documentation/networking/rxrpc.txt index 9fb61a6bc7cf..1fb5c553aedd 100644 --- a/Documentation/networking/rxrpc.txt +++ b/Documentation/networking/rxrpc.txt @@ -1033,6 +1033,30 @@ The kernel interface functions are as follows: It returns 0 if the call was requeued and an error otherwise. + (*) Get call RTT. + + u64 rxrpc_kernel_get_rtt(struct socket *sock, struct rxrpc_call *call); + + Get the RTT time to the peer in use by a call. The value returned is in + nanoseconds. + + (*) Check call still alive. + + u32 rxrpc_kernel_check_life(struct socket *sock, + struct rxrpc_call *call); + + This returns a number that is updated when ACKs are received from the peer + (notably including PING RESPONSE ACKs which we can elicit by sending PING + ACKs to see if the call still exists on the server). The caller should + compare the numbers of two calls to see if the call is still alive after + waiting for a suitable interval. + + This allows the caller to work out if the server is still contactable and + if the call is still alive on the server whilst waiting for the server to + process a client operation. + + This function may transmit a PING ACK. + ======================= CONFIGURABLE PARAMETERS diff --git a/include/net/af_rxrpc.h b/include/net/af_rxrpc.h index 820dd365a08e..2b3a6eec4570 100644 --- a/include/net/af_rxrpc.h +++ b/include/net/af_rxrpc.h @@ -61,6 +61,7 @@ bool rxrpc_kernel_abort_call(struct socket *, struct rxrpc_call *, void rxrpc_kernel_end_call(struct socket *, struct rxrpc_call *); void rxrpc_kernel_get_peer(struct socket *, struct rxrpc_call *, struct sockaddr_rxrpc *); +u64 rxrpc_kernel_get_rtt(struct socket *, struct rxrpc_call *); int rxrpc_kernel_charge_accept(struct socket *, rxrpc_notify_rx_t, rxrpc_user_attach_call_t, unsigned long, gfp_t); void rxrpc_kernel_set_tx_length(struct socket *, struct rxrpc_call *, s64); @@ -68,5 +69,6 @@ int rxrpc_kernel_retry_call(struct socket *, struct rxrpc_call *, struct sockaddr_rxrpc *, struct key *); int rxrpc_kernel_check_call(struct socket *, struct rxrpc_call *, enum rxrpc_call_completion *, u32 *); +u32 rxrpc_kernel_check_life(struct socket *, struct rxrpc_call *); #endif /* _NET_RXRPC_H */ diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c index 481f7dc90ba2..73c980e26581 100644 --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@ -339,6 +339,25 @@ void rxrpc_kernel_end_call(struct socket *sock, struct rxrpc_call *call) } EXPORT_SYMBOL(rxrpc_kernel_end_call); +/** + * rxrpc_kernel_check_life - Check to see whether a call is still alive + * @sock: The socket the call is on + * @call: The call to check + * + * Allow a kernel service to find out whether a call is still alive - ie. we're + * getting ACKs from the server. Returns a number representing the life state + * which can be compared to that returned by a previous call. + * + * If this is a client call, ping ACKs will be sent to the server to find out + * whether it's still responsive and whether the call is still alive on the + * server. + */ +u32 rxrpc_kernel_check_life(struct socket *sock, struct rxrpc_call *call) +{ + return call->acks_latest; +} +EXPORT_SYMBOL(rxrpc_kernel_check_life); + /** * rxrpc_kernel_check_call - Check a call's state * @sock: The socket the call is on diff --git a/net/rxrpc/peer_object.c b/net/rxrpc/peer_object.c index 5787f97f5330..d02a99f37f5f 100644 --- a/net/rxrpc/peer_object.c +++ b/net/rxrpc/peer_object.c @@ -411,3 +411,16 @@ void rxrpc_kernel_get_peer(struct socket *sock, struct rxrpc_call *call, *_srx = call->peer->srx; } EXPORT_SYMBOL(rxrpc_kernel_get_peer); + +/** + * rxrpc_kernel_get_rtt - Get a call's peer RTT + * @sock: The socket on which the call is in progress. + * @call: The call to query + * + * Get the call's peer RTT. + */ +u64 rxrpc_kernel_get_rtt(struct socket *sock, struct rxrpc_call *call) +{ + return call->peer->rtt; +} +EXPORT_SYMBOL(rxrpc_kernel_get_rtt); -- cgit v1.2.3 From bc5e3a546d553e5223851fc199e69040eb70f68b Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 18 Oct 2017 11:07:31 +0100 Subject: rxrpc: Use MSG_WAITALL to tell sendmsg() to temporarily ignore signals Make AF_RXRPC accept MSG_WAITALL as a flag to sendmsg() to tell it to ignore signals whilst loading up the message queue, provided progress is being made in emptying the queue at the other side. Progress is defined as the base of the transmit window having being advanced within 2 RTT periods. If the period is exceeded with no progress, sendmsg() will return anyway, indicating how much data has been copied, if any. Once the supplied buffer is entirely decanted, the sendmsg() will return. Signed-off-by: David Howells --- Documentation/networking/rxrpc.txt | 12 +++++ fs/afs/rxrpc.c | 31 +++++++++-- net/rxrpc/sendmsg.c | 107 ++++++++++++++++++++++++++++--------- 3 files changed, 119 insertions(+), 31 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/rxrpc.txt b/Documentation/networking/rxrpc.txt index 1fb5c553aedd..b5407163d53b 100644 --- a/Documentation/networking/rxrpc.txt +++ b/Documentation/networking/rxrpc.txt @@ -280,6 +280,18 @@ Interaction with the user of the RxRPC socket: nominated by a socket option. +Notes on sendmsg: + + (*) MSG_WAITALL can be set to tell sendmsg to ignore signals if the peer is + making progress at accepting packets within a reasonable time such that we + manage to queue up all the data for transmission. This requires the + client to accept at least one packet per 2*RTT time period. + + If this isn't set, sendmsg() will return immediately, either returning + EINTR/ERESTARTSYS if nothing was consumed or returning the amount of data + consumed. + + Notes on recvmsg: (*) If there's a sequence of data messages belonging to a particular call on diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c index 172a4f9747ac..bb1e2caa1720 100644 --- a/fs/afs/rxrpc.c +++ b/fs/afs/rxrpc.c @@ -407,7 +407,7 @@ int afs_make_call(struct in_addr *addr, struct afs_call *call, gfp_t gfp, call->request_size); msg.msg_control = NULL; msg.msg_controllen = 0; - msg.msg_flags = (call->send_pages ? MSG_MORE : 0); + msg.msg_flags = MSG_WAITALL | (call->send_pages ? MSG_MORE : 0); /* We have to change the state *before* sending the last packet as * rxrpc might give us the reply before it returns from sending the @@ -538,15 +538,26 @@ call_complete: */ static int afs_wait_for_call_to_complete(struct afs_call *call) { + signed long rtt2, timeout; int ret; + u64 rtt; + u32 life, last_life; DECLARE_WAITQUEUE(myself, current); _enter(""); + rtt = rxrpc_kernel_get_rtt(afs_socket, call->rxcall); + rtt2 = nsecs_to_jiffies64(rtt) * 2; + if (rtt2 < 2) + rtt2 = 2; + + timeout = rtt2; + last_life = rxrpc_kernel_check_life(afs_socket, call->rxcall); + add_wait_queue(&call->waitq, &myself); for (;;) { - set_current_state(TASK_INTERRUPTIBLE); + set_current_state(TASK_UNINTERRUPTIBLE); /* deliver any messages that are in the queue */ if (call->state < AFS_CALL_COMPLETE && call->need_attention) { @@ -556,10 +567,20 @@ static int afs_wait_for_call_to_complete(struct afs_call *call) continue; } - if (call->state == AFS_CALL_COMPLETE || - signal_pending(current)) + if (call->state == AFS_CALL_COMPLETE) break; - schedule(); + + life = rxrpc_kernel_check_life(afs_socket, call->rxcall); + if (timeout == 0 && + life == last_life && signal_pending(current)) + break; + + if (life != last_life) { + timeout = rtt2; + last_life = life; + } + + timeout = schedule_timeout(timeout); } remove_wait_queue(&call->waitq, &myself); diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c index 9ea6f972767e..2d9edc656ca3 100644 --- a/net/rxrpc/sendmsg.c +++ b/net/rxrpc/sendmsg.c @@ -37,13 +37,87 @@ struct rxrpc_send_params { bool upgrade; /* If the connection is upgradeable */ }; +/* + * Wait for space to appear in the Tx queue or a signal to occur. + */ +static int rxrpc_wait_for_tx_window_intr(struct rxrpc_sock *rx, + struct rxrpc_call *call, + long *timeo) +{ + for (;;) { + set_current_state(TASK_INTERRUPTIBLE); + if (call->tx_top - call->tx_hard_ack < + min_t(unsigned int, call->tx_winsize, + call->cong_cwnd + call->cong_extra)) + return 0; + + if (call->state >= RXRPC_CALL_COMPLETE) + return call->error; + + if (signal_pending(current)) + return sock_intr_errno(*timeo); + + trace_rxrpc_transmit(call, rxrpc_transmit_wait); + mutex_unlock(&call->user_mutex); + *timeo = schedule_timeout(*timeo); + if (mutex_lock_interruptible(&call->user_mutex) < 0) + return sock_intr_errno(*timeo); + } +} + +/* + * Wait for space to appear in the Tx queue uninterruptibly, but with + * a timeout of 2*RTT if no progress was made and a signal occurred. + */ +static int rxrpc_wait_for_tx_window_nonintr(struct rxrpc_sock *rx, + struct rxrpc_call *call) +{ + rxrpc_seq_t tx_start, tx_win; + signed long rtt2, timeout; + u64 rtt; + + rtt = READ_ONCE(call->peer->rtt); + rtt2 = nsecs_to_jiffies64(rtt) * 2; + if (rtt2 < 1) + rtt2 = 1; + + timeout = rtt2; + tx_start = READ_ONCE(call->tx_hard_ack); + + for (;;) { + set_current_state(TASK_UNINTERRUPTIBLE); + + tx_win = READ_ONCE(call->tx_hard_ack); + if (call->tx_top - tx_win < + min_t(unsigned int, call->tx_winsize, + call->cong_cwnd + call->cong_extra)) + return 0; + + if (call->state >= RXRPC_CALL_COMPLETE) + return call->error; + + if (timeout == 0 && + tx_win == tx_start && signal_pending(current)) + return -EINTR; + + if (tx_win != tx_start) { + timeout = rtt2; + tx_start = tx_win; + } + + trace_rxrpc_transmit(call, rxrpc_transmit_wait); + timeout = schedule_timeout(timeout); + } +} + /* * wait for space to appear in the transmit/ACK window * - caller holds the socket locked */ static int rxrpc_wait_for_tx_window(struct rxrpc_sock *rx, struct rxrpc_call *call, - long *timeo) + long *timeo, + bool waitall) { DECLARE_WAITQUEUE(myself, current); int ret; @@ -53,30 +127,10 @@ static int rxrpc_wait_for_tx_window(struct rxrpc_sock *rx, add_wait_queue(&call->waitq, &myself); - for (;;) { - set_current_state(TASK_INTERRUPTIBLE); - ret = 0; - if (call->tx_top - call->tx_hard_ack < - min_t(unsigned int, call->tx_winsize, - call->cong_cwnd + call->cong_extra)) - break; - if (call->state >= RXRPC_CALL_COMPLETE) { - ret = call->error; - break; - } - if (signal_pending(current)) { - ret = sock_intr_errno(*timeo); - break; - } - - trace_rxrpc_transmit(call, rxrpc_transmit_wait); - mutex_unlock(&call->user_mutex); - *timeo = schedule_timeout(*timeo); - if (mutex_lock_interruptible(&call->user_mutex) < 0) { - ret = sock_intr_errno(*timeo); - break; - } - } + if (waitall) + ret = rxrpc_wait_for_tx_window_nonintr(rx, call); + else + ret = rxrpc_wait_for_tx_window_intr(rx, call, timeo); remove_wait_queue(&call->waitq, &myself); set_current_state(TASK_RUNNING); @@ -254,7 +308,8 @@ static int rxrpc_send_data(struct rxrpc_sock *rx, if (msg->msg_flags & MSG_DONTWAIT) goto maybe_error; ret = rxrpc_wait_for_tx_window(rx, call, - &timeo); + &timeo, + msg->msg_flags & MSG_WAITALL); if (ret < 0) goto maybe_error; } -- cgit v1.2.3 From 4b8b77a4ec807a5f14e02e84b1bb7a2fd43768c0 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Thu, 22 Sep 2016 11:48:19 +0100 Subject: dt-bindings: Document devicetree binding for ARM SPE This patch documents the devicetree binding in use for ARM SPE. Cc: Rob Herring Acked-by: Mark Rutland Signed-off-by: Will Deacon --- Documentation/devicetree/bindings/arm/spe-pmu.txt | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/spe-pmu.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/spe-pmu.txt b/Documentation/devicetree/bindings/arm/spe-pmu.txt new file mode 100644 index 000000000000..93372f2a7df9 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/spe-pmu.txt @@ -0,0 +1,20 @@ +* ARMv8.2 Statistical Profiling Extension (SPE) Performance Monitor Units (PMU) + +ARMv8.2 introduces the optional Statistical Profiling Extension for collecting +performance sample data using an in-memory trace buffer. + +** SPE Required properties: + +- compatible : should be one of: + "arm,statistical-profiling-extension-v1" + +- interrupts : Exactly 1 PPI must be listed. For heterogeneous systems where + SPE is only supported on a subset of the CPUs, please consult + the arm,gic-v3 binding for details on describing a PPI partition. + +** Example: + +spe-pmu { + compatible = "arm,statistical-profiling-extension-v1"; + interrupts = ; +}; -- cgit v1.2.3 From 28d1d6d2f314ff395ff67565d1145742614b21c8 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 18 Oct 2017 14:01:58 +0200 Subject: ALSA: hda - Add model string for Intel reference board quirk For allowing user to apply the existing quirk on a machine with a different SSID, add a new model string entry, alc700-ref. The quirk itself was introduced in the commit b84e843644f2: "ALSA: hda/realtek - Enable jack detection function for Intel ALC700") Signed-off-by: Takashi Iwai --- Documentation/sound/hd-audio/models.rst | 2 ++ sound/pci/hda/patch_realtek.c | 1 + 2 files changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/sound/hd-audio/models.rst b/Documentation/sound/hd-audio/models.rst index 773d2bfacc6c..1fee5a4f6660 100644 --- a/Documentation/sound/hd-audio/models.rst +++ b/Documentation/sound/hd-audio/models.rst @@ -82,6 +82,8 @@ tpt460 Lenovo Thinkpad T460/560 setup dual-codecs Lenovo laptops with dual codecs +alc700-ref + Intel reference board with ALC700 codec ALC66x/67x/892 ============== diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 0ce71111b4e3..1a0163b81f5b 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6357,6 +6357,7 @@ static const struct hda_model_fixup alc269_fixup_models[] = { {.id = ALC292_FIXUP_TPT440, .name = "tpt440"}, {.id = ALC292_FIXUP_TPT460, .name = "tpt460"}, {.id = ALC233_FIXUP_LENOVO_MULTI_CODECS, .name = "dual-codecs"}, + {.id = ALC700_FIXUP_INTEL_REFERENCE, .name = "alc700-ref"}, {} }; #define ALC225_STANDARD_PINS \ -- cgit v1.2.3 From 686140a1a9c41d85a4212a1c26d671139b76404b Mon Sep 17 00:00:00 2001 From: Vasily Gorbik Date: Thu, 12 Oct 2017 13:01:47 +0200 Subject: s390: introduce CPU alternatives Implement CPU alternatives, which allows to optionally patch newer instructions at runtime, based on CPU facilities availability. A new kernel boot parameter "noaltinstr" disables patching. Current implementation is derived from x86 alternatives. Although ideal instructions padding (when altinstr is longer then oldinstr) is added at compile time, and no oldinstr nops optimization has to be done at runtime. Also couple of compile time sanity checks are done: 1. oldinstr and altinstr must be <= 254 bytes long, 2. oldinstr and altinstr must not have an odd length. alternative(oldinstr, altinstr, facility); alternative_2(oldinstr, altinstr1, facility1, altinstr2, facility2); Both compile time and runtime padding consists of either 6/4/2 bytes nop or a jump (brcl) + 2 bytes nop filler if padding is longer then 6 bytes. .altinstructions and .altinstr_replacement sections are part of __init_begin : __init_end region and are freed after initialization. Signed-off-by: Vasily Gorbik Signed-off-by: Martin Schwidefsky --- Documentation/admin-guide/kernel-parameters.txt | 3 + arch/s390/Kconfig | 17 +++ arch/s390/include/asm/alternative.h | 163 ++++++++++++++++++++++++ arch/s390/kernel/Makefile | 1 + arch/s390/kernel/alternative.c | 110 ++++++++++++++++ arch/s390/kernel/module.c | 17 +++ arch/s390/kernel/setup.c | 3 + arch/s390/kernel/vmlinux.lds.S | 23 ++++ 8 files changed, 337 insertions(+) create mode 100644 arch/s390/include/asm/alternative.h create mode 100644 arch/s390/kernel/alternative.c (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 05496622b4ef..464f60c50c36 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -2548,6 +2548,9 @@ noalign [KNL,ARM] + noaltinstr [S390] Disables alternative instructions patching + (CPU alternatives feature). + noapic [SMP,APIC] Tells the kernel to not make use of any IOAPICs that may be present in the system. diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 5fd4a67c93b3..080a3fcc3cb8 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -537,6 +537,22 @@ config ARCH_RANDOM If unsure, say Y. +config ALTERNATIVES + def_bool y + prompt "Patch optimized instructions for running CPU type" + help + When enabled the kernel code is compiled with additional + alternative instructions blocks optimized for newer CPU types. + These alternative instructions blocks are patched at kernel boot + time when running CPU supports them. This mechanism is used to + optimize some critical code paths (i.e. spinlocks) for newer CPUs + even if kernel is build to support older machine generations. + + This mechanism could be disabled by appending "noaltinstr" + option to the kernel command line. + + If unsure, say Y. + endmenu menu "Memory setup" @@ -811,6 +827,7 @@ config PFAULT config SHARED_KERNEL bool "VM shared kernel support" depends on !JUMP_LABEL + depends on !ALTERNATIVES help Select this option, if you want to share the text segment of the Linux kernel between different VM guests. This reduces memory diff --git a/arch/s390/include/asm/alternative.h b/arch/s390/include/asm/alternative.h new file mode 100644 index 000000000000..6c268f6a51d3 --- /dev/null +++ b/arch/s390/include/asm/alternative.h @@ -0,0 +1,163 @@ +#ifndef _ASM_S390_ALTERNATIVE_H +#define _ASM_S390_ALTERNATIVE_H + +#ifndef __ASSEMBLY__ + +#include +#include +#include + +struct alt_instr { + s32 instr_offset; /* original instruction */ + s32 repl_offset; /* offset to replacement instruction */ + u16 facility; /* facility bit set for replacement */ + u8 instrlen; /* length of original instruction */ + u8 replacementlen; /* length of new instruction */ +} __packed; + +#ifdef CONFIG_ALTERNATIVES +extern void apply_alternative_instructions(void); +extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end); +#else +static inline void apply_alternative_instructions(void) {}; +static inline void apply_alternatives(struct alt_instr *start, + struct alt_instr *end) {}; +#endif +/* + * |661: |662: |6620 |663: + * +-----------+---------------------+ + * | oldinstr | oldinstr_padding | + * | +----------+----------+ + * | | | | + * | | >6 bytes |6/4/2 nops| + * | |6 bytes jg-----------> + * +-----------+---------------------+ + * ^^ static padding ^^ + * + * .altinstr_replacement section + * +---------------------+-----------+ + * |6641: |6651: + * | alternative instr 1 | + * +-----------+---------+- - - - - -+ + * |6642: |6652: | + * | alternative instr 2 | padding + * +---------------------+- - - - - -+ + * ^ runtime ^ + * + * .altinstructions section + * +---------------------------------+ + * | alt_instr entries for each | + * | alternative instr | + * +---------------------------------+ + */ + +#define b_altinstr(num) "664"#num +#define e_altinstr(num) "665"#num + +#define e_oldinstr_pad_end "663" +#define oldinstr_len "662b-661b" +#define oldinstr_total_len e_oldinstr_pad_end"b-661b" +#define altinstr_len(num) e_altinstr(num)"b-"b_altinstr(num)"b" +#define oldinstr_pad_len(num) \ + "-(((" altinstr_len(num) ")-(" oldinstr_len ")) > 0) * " \ + "((" altinstr_len(num) ")-(" oldinstr_len "))" + +#define INSTR_LEN_SANITY_CHECK(len) \ + ".if " len " > 254\n" \ + "\t.error \"cpu alternatives does not support instructions " \ + "blocks > 254 bytes\"\n" \ + ".endif\n" \ + ".if (" len ") %% 2\n" \ + "\t.error \"cpu alternatives instructions length is odd\"\n" \ + ".endif\n" + +#define OLDINSTR_PADDING(oldinstr, num) \ + ".if " oldinstr_pad_len(num) " > 6\n" \ + "\tjg " e_oldinstr_pad_end "f\n" \ + "6620:\n" \ + "\t.fill (" oldinstr_pad_len(num) " - (6620b-662b)) / 2, 2, 0x0700\n" \ + ".else\n" \ + "\t.fill " oldinstr_pad_len(num) " / 6, 6, 0xc0040000\n" \ + "\t.fill " oldinstr_pad_len(num) " %% 6 / 4, 4, 0x47000000\n" \ + "\t.fill " oldinstr_pad_len(num) " %% 6 %% 4 / 2, 2, 0x0700\n" \ + ".endif\n" + +#define OLDINSTR(oldinstr, num) \ + "661:\n\t" oldinstr "\n662:\n" \ + OLDINSTR_PADDING(oldinstr, num) \ + e_oldinstr_pad_end ":\n" \ + INSTR_LEN_SANITY_CHECK(oldinstr_len) + +#define OLDINSTR_2(oldinstr, num1, num2) \ + "661:\n\t" oldinstr "\n662:\n" \ + ".if " altinstr_len(num1) " < " altinstr_len(num2) "\n" \ + OLDINSTR_PADDING(oldinstr, num2) \ + ".else\n" \ + OLDINSTR_PADDING(oldinstr, num1) \ + ".endif\n" \ + e_oldinstr_pad_end ":\n" \ + INSTR_LEN_SANITY_CHECK(oldinstr_len) + +#define ALTINSTR_ENTRY(facility, num) \ + "\t.long 661b - .\n" /* old instruction */ \ + "\t.long " b_altinstr(num)"b - .\n" /* alt instruction */ \ + "\t.word " __stringify(facility) "\n" /* facility bit */ \ + "\t.byte " oldinstr_total_len "\n" /* source len */ \ + "\t.byte " altinstr_len(num) "\n" /* alt instruction len */ + +#define ALTINSTR_REPLACEMENT(altinstr, num) /* replacement */ \ + b_altinstr(num)":\n\t" altinstr "\n" e_altinstr(num) ":\n" \ + INSTR_LEN_SANITY_CHECK(altinstr_len(num)) + +#ifdef CONFIG_ALTERNATIVES +/* alternative assembly primitive: */ +#define ALTERNATIVE(oldinstr, altinstr, facility) \ + ".pushsection .altinstr_replacement, \"ax\"\n" \ + ALTINSTR_REPLACEMENT(altinstr, 1) \ + ".popsection\n" \ + OLDINSTR(oldinstr, 1) \ + ".pushsection .altinstructions,\"a\"\n" \ + ALTINSTR_ENTRY(facility, 1) \ + ".popsection\n" + +#define ALTERNATIVE_2(oldinstr, altinstr1, facility1, altinstr2, facility2)\ + ".pushsection .altinstr_replacement, \"ax\"\n" \ + ALTINSTR_REPLACEMENT(altinstr1, 1) \ + ALTINSTR_REPLACEMENT(altinstr2, 2) \ + ".popsection\n" \ + OLDINSTR_2(oldinstr, 1, 2) \ + ".pushsection .altinstructions,\"a\"\n" \ + ALTINSTR_ENTRY(facility1, 1) \ + ALTINSTR_ENTRY(facility2, 2) \ + ".popsection\n" +#else +/* Alternative instructions are disabled, let's put just oldinstr in */ +#define ALTERNATIVE(oldinstr, altinstr, facility) \ + oldinstr "\n" + +#define ALTERNATIVE_2(oldinstr, altinstr1, facility1, altinstr2, facility2) \ + oldinstr "\n" +#endif + +/* + * Alternative instructions for different CPU types or capabilities. + * + * This allows to use optimized instructions even on generic binary + * kernels. + * + * oldinstr is padded with jump and nops at compile time if altinstr is + * longer. altinstr is padded with jump and nops at run-time during patching. + * + * For non barrier like inlines please define new variants + * without volatile and memory clobber. + */ +#define alternative(oldinstr, altinstr, facility) \ + asm volatile(ALTERNATIVE(oldinstr, altinstr, facility) : : : "memory") + +#define alternative_2(oldinstr, altinstr1, facility1, altinstr2, facility2) \ + asm volatile(ALTERNATIVE_2(oldinstr, altinstr1, facility1, \ + altinstr2, facility2) ::: "memory") + +#endif /* __ASSEMBLY__ */ + +#endif /* _ASM_S390_ALTERNATIVE_H */ diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index 7b742ffac7d3..addf61024153 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -76,6 +76,7 @@ obj-$(CONFIG_KPROBES) += kprobes.o obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o obj-$(CONFIG_UPROBES) += uprobes.o +obj-$(CONFIG_ALTERNATIVES) += alternative.o obj-$(CONFIG_PERF_EVENTS) += perf_event.o perf_cpum_cf.o perf_cpum_sf.o obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf_events.o diff --git a/arch/s390/kernel/alternative.c b/arch/s390/kernel/alternative.c new file mode 100644 index 000000000000..315986a06cf5 --- /dev/null +++ b/arch/s390/kernel/alternative.c @@ -0,0 +1,110 @@ +#include +#include +#include + +#define MAX_PATCH_LEN (255 - 1) + +static int __initdata_or_module alt_instr_disabled; + +static int __init disable_alternative_instructions(char *str) +{ + alt_instr_disabled = 1; + return 0; +} + +early_param("noaltinstr", disable_alternative_instructions); + +struct brcl_insn { + u16 opc; + s32 disp; +} __packed; + +static u16 __initdata_or_module nop16 = 0x0700; +static u32 __initdata_or_module nop32 = 0x47000000; +static struct brcl_insn __initdata_or_module nop48 = { + 0xc004, 0 +}; + +static const void *nops[] __initdata_or_module = { + &nop16, + &nop32, + &nop48 +}; + +static void __init_or_module add_jump_padding(void *insns, unsigned int len) +{ + struct brcl_insn brcl = { + 0xc0f4, + len / 2 + }; + + memcpy(insns, &brcl, sizeof(brcl)); + insns += sizeof(brcl); + len -= sizeof(brcl); + + while (len > 0) { + memcpy(insns, &nop16, 2); + insns += 2; + len -= 2; + } +} + +static void __init_or_module add_padding(void *insns, unsigned int len) +{ + if (len > 6) + add_jump_padding(insns, len); + else if (len >= 2) + memcpy(insns, nops[len / 2 - 1], len); +} + +static void __init_or_module __apply_alternatives(struct alt_instr *start, + struct alt_instr *end) +{ + struct alt_instr *a; + u8 *instr, *replacement; + u8 insnbuf[MAX_PATCH_LEN]; + + /* + * The scan order should be from start to end. A later scanned + * alternative code can overwrite previously scanned alternative code. + */ + for (a = start; a < end; a++) { + int insnbuf_sz = 0; + + instr = (u8 *)&a->instr_offset + a->instr_offset; + replacement = (u8 *)&a->repl_offset + a->repl_offset; + + if (!test_facility(a->facility)) + continue; + + if (unlikely(a->instrlen % 2 || a->replacementlen % 2)) { + WARN_ONCE(1, "cpu alternatives instructions length is " + "odd, skipping patching\n"); + continue; + } + + memcpy(insnbuf, replacement, a->replacementlen); + insnbuf_sz = a->replacementlen; + + if (a->instrlen > a->replacementlen) { + add_padding(insnbuf + a->replacementlen, + a->instrlen - a->replacementlen); + insnbuf_sz += a->instrlen - a->replacementlen; + } + + s390_kernel_write(instr, insnbuf, insnbuf_sz); + } +} + +void __init_or_module apply_alternatives(struct alt_instr *start, + struct alt_instr *end) +{ + if (!alt_instr_disabled) + __apply_alternatives(start, end); +} + +extern struct alt_instr __alt_instructions[], __alt_instructions_end[]; +void __init apply_alternative_instructions(void) +{ + apply_alternatives(__alt_instructions, __alt_instructions_end); +} diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c index 1a27f307a920..6d9f73bb4142 100644 --- a/arch/s390/kernel/module.c +++ b/arch/s390/kernel/module.c @@ -31,6 +31,7 @@ #include #include #include +#include #if 0 #define DEBUGP printk @@ -429,6 +430,22 @@ int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *me) { + const Elf_Shdr *s; + char *secstrings; + + if (IS_ENABLED(CONFIG_ALTERNATIVES)) { + secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) { + if (!strcmp(".altinstructions", + secstrings + s->sh_name)) { + /* patch .altinstructions */ + void *aseg = (void *)s->sh_addr; + + apply_alternatives(aseg, aseg + s->sh_size); + } + } + } + jump_label_apply_nops(me); return 0; } diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index b2c9af9b88d5..c07e6d6a91cc 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -66,6 +66,7 @@ #include #include #include +#include #include "entry.h" /* @@ -957,6 +958,8 @@ void __init setup_arch(char **cmdline_p) conmode_default(); set_preferred_console(); + apply_alternative_instructions(); + /* Setup zfcpdump support */ setup_zfcpdump(); diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index 6e2c42bd1c3b..7c9fcf7cb43d 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -104,6 +104,29 @@ SECTIONS EXIT_DATA } + /* + * struct alt_inst entries. From the header (alternative.h): + * "Alternative instructions for different CPU types or capabilities" + * Think locking instructions on spinlocks. + * Note, that it is a part of __init region. + */ + . = ALIGN(8); + .altinstructions : { + __alt_instructions = .; + *(.altinstructions) + __alt_instructions_end = .; + } + + /* + * And here are the replacement instructions. The linker sticks + * them as binary blobs. The .altinstructions has enough data to + * get the address and the length of them to patch the kernel safely. + * Note, that it is a part of __init region. + */ + .altinstr_replacement : { + *(.altinstr_replacement) + } + /* early.c uses stsi, which requires page aligned data. */ . = ALIGN(PAGE_SIZE); INIT_DATA_SECTION(0x100) -- cgit v1.2.3 From 904fb8e452b4a95490357841291fa523ad1d6442 Mon Sep 17 00:00:00 2001 From: Manikanta Maddireddy Date: Wed, 27 Sep 2017 17:28:34 +0530 Subject: dt-bindings: pci: tegra: Document Tegra186 PCIe DT Tegra186 PCIe controller DT properties has couple of differences wrt Tegra210 PCIe, rest of the DT properties are same. Tested-by: Mikko Perttunen Signed-off-by: Manikanta Maddireddy Signed-off-by: Bjorn Helgaas Reviewed-by: Mikko Perttunen Acked-by: Thierry Reding --- .../bindings/pci/nvidia,tegra20-pcie.txt | 134 ++++++++++++++++++++- 1 file changed, 130 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt index 982a74ea6df9..33d2e2139333 100644 --- a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt +++ b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt @@ -1,10 +1,15 @@ NVIDIA Tegra PCIe controller Required properties: -- compatible: For Tegra20, must contain "nvidia,tegra20-pcie". For Tegra30, - "nvidia,tegra30-pcie". For Tegra124, must contain "nvidia,tegra124-pcie". - Otherwise, must contain "nvidia,-pcie", plus one of the above, where - is tegra132 or tegra210. +- compatible: Must be: + - "nvidia,tegra20-pcie": for Tegra20 + - "nvidia,tegra30-pcie": for Tegra30 + - "nvidia,tegra124-pcie": for Tegra124 and Tegra132 + - "nvidia,tegra210-pcie": for Tegra210 + - "nvidia,tegra186-pcie": for Tegra186 +- power-domains: To ungate power partition by BPMP powergate driver. Must + contain BPMP phandle and PCIe power partition ID. This is required only + for Tegra186. - device_type: Must be "pci" - reg: A list of physical base address and length for each set of controller registers. Must contain an entry for each entry in the reg-names property. @@ -124,6 +129,16 @@ Power supplies for Tegra210: - vddio-pex-ctl-supply: Power supply for PCIe control I/O partition. Must supply 1.8 V. +Power supplies for Tegra186: +- Required: + - dvdd-pex-supply: Power supply for digital PCIe I/O. Must supply 1.05 V. + - hvdd-pex-pll-supply: High-voltage supply for PLLE (shared with USB3). Must + supply 1.8 V. + - hvdd-pex-supply: High-voltage supply for PCIe I/O and PCIe output clocks. + Must supply 1.8 V. + - vddio-pexctl-aud-supply: Power supply for PCIe side band signals. Must + supply 1.8 V. + Root ports are defined as subnodes of the PCIe controller node. Required properties: @@ -546,3 +561,114 @@ Board DTS: status = "okay"; }; }; + +Tegra186: +--------- + +SoC DTSI: + + pcie@10003000 { + compatible = "nvidia,tegra186-pcie"; + power-domains = <&bpmp TEGRA186_POWER_DOMAIN_PCX>; + device_type = "pci"; + reg = <0x0 0x10003000 0x0 0x00000800 /* PADS registers */ + 0x0 0x10003800 0x0 0x00000800 /* AFI registers */ + 0x0 0x40000000 0x0 0x10000000>; /* configuration space */ + reg-names = "pads", "afi", "cs"; + + interrupts = , /* controller interrupt */ + ; /* MSI interrupt */ + interrupt-names = "intr", "msi"; + + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0>; + interrupt-map = <0 0 0 0 &gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>; + + bus-range = <0x00 0xff>; + #address-cells = <3>; + #size-cells = <2>; + + ranges = <0x82000000 0 0x10000000 0x0 0x10000000 0 0x00001000 /* port 0 configuration space */ + 0x82000000 0 0x10001000 0x0 0x10001000 0 0x00001000 /* port 1 configuration space */ + 0x82000000 0 0x10004000 0x0 0x10004000 0 0x00001000 /* port 2 configuration space */ + 0x81000000 0 0x0 0x0 0x50000000 0 0x00010000 /* downstream I/O (64 KiB) */ + 0x82000000 0 0x50100000 0x0 0x50100000 0 0x07F00000 /* non-prefetchable memory (127 MiB) */ + 0xc2000000 0 0x58000000 0x0 0x58000000 0 0x28000000>; /* prefetchable memory (640 MiB) */ + + clocks = <&bpmp TEGRA186_CLK_AFI>, + <&bpmp TEGRA186_CLK_PCIE>, + <&bpmp TEGRA186_CLK_PLLE>; + clock-names = "afi", "pex", "pll_e"; + + resets = <&bpmp TEGRA186_RESET_AFI>, + <&bpmp TEGRA186_RESET_PCIE>, + <&bpmp TEGRA186_RESET_PCIEXCLK>; + reset-names = "afi", "pex", "pcie_x"; + + status = "disabled"; + + pci@1,0 { + device_type = "pci"; + assigned-addresses = <0x82000800 0 0x10000000 0 0x1000>; + reg = <0x000800 0 0 0 0>; + status = "disabled"; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + + nvidia,num-lanes = <2>; + }; + + pci@2,0 { + device_type = "pci"; + assigned-addresses = <0x82001000 0 0x10001000 0 0x1000>; + reg = <0x001000 0 0 0 0>; + status = "disabled"; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + + nvidia,num-lanes = <1>; + }; + + pci@3,0 { + device_type = "pci"; + assigned-addresses = <0x82001800 0 0x10004000 0 0x1000>; + reg = <0x001800 0 0 0 0>; + status = "disabled"; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + + nvidia,num-lanes = <1>; + }; + }; + +Board DTS: + + pcie@10003000 { + status = "okay"; + + dvdd-pex-supply = <&vdd_pex>; + hvdd-pex-pll-supply = <&vdd_1v8>; + hvdd-pex-supply = <&vdd_1v8>; + vddio-pexctl-aud-supply = <&vdd_1v8>; + + pci@1,0 { + nvidia,num-lanes = <4>; + status = "okay"; + }; + + pci@2,0 { + nvidia,num-lanes = <0>; + status = "disabled"; + }; + + pci@3,0 { + nvidia,num-lanes = <1>; + status = "disabled"; + }; + }; -- cgit v1.2.3 From d950770f628d54f74f995d9ec495733ab2fe9e60 Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 18 Oct 2017 09:16:15 -0700 Subject: Documentation: add my name to supporters Signed-off-by: Stephen Hemminger Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index 1e23d4227337..44c286b50e92 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -79,6 +79,7 @@ we might work for today, have in the past, or will in the future. - Juergen Gross - Shawn Guo - Ulf Hansson + - Stephen Hemminger (Microsoft) - Tejun Heo - Rob Herring - Masami Hiramatsu -- cgit v1.2.3 From e3aca5508d509363778bda04b1fd53731d809fce Mon Sep 17 00:00:00 2001 From: Eduardo Valentin Date: Tue, 17 Oct 2017 08:06:53 -0700 Subject: Documentation: update kernel enforcement support list Adding myself to the list as I missed the window to be in the original patch. Cc: Jonathan Corbet Cc: Bart Van Assche Cc: Namhyung Kim Cc: Olof Johansson Cc: Juergen Gross Cc: Javier Martinez Canillas Signed-off-by: Eduardo Valentin Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index 44c286b50e92..e55c20f8e2d0 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -146,3 +146,4 @@ we might work for today, have in the past, or will in the future. - Masahiro Yamada - Wei Yongjun - Lv Zheng + - Eduardo Valentin -- cgit v1.2.3 From 3587cddfacf67cf50d288572453eb47ff2603575 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 18 Oct 2017 12:11:58 -0400 Subject: Add ack for Trond Myklebust to the enforcement statement Signed-off-by: Trond Myklebust Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index e55c20f8e2d0..b02c8cf8918f 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -117,6 +117,7 @@ we might work for today, have in the past, or will in the future. - David S. Miller - Ingo Molnar - Kuninori Morimoto + - Trond Myklebust - Borislav Petkov - Jiri Pirko - Josh Poimboeuf -- cgit v1.2.3 From 513a6f750b836dd17bb6fe69aa83be59557903f3 Mon Sep 17 00:00:00 2001 From: Dennis Dalessandro Date: Wed, 18 Oct 2017 12:34:54 -0700 Subject: Documentation: Sign kernel enforcement statement Add my name to the kernel enforcement statement as it is something I support speaking on my own behalf and not a statement of my current employer. Signed-off-by: Dennis Dalessandro Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index b02c8cf8918f..32b461f08f8b 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -67,6 +67,7 @@ we might work for today, have in the past, or will in the future. - Javier Martinez Canillas - Rob Clark - Jonathan Corbet + - Dennis Dalessandro - Vivien Didelot (Savoir-faire Linux) - Hans de Goede (Red Hat) - Mel Gorman (SUSE) -- cgit v1.2.3 From b4714784df6afdf90e8bb70c381110e4299fab40 Mon Sep 17 00:00:00 2001 From: Laura Abbott Date: Wed, 18 Oct 2017 16:20:47 -0700 Subject: Documentation: Add myself to the enforcement statement list I already Acked the patch, add my name to the list as well. Signed-off-by: Laura Abbott Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index 32b461f08f8b..421142690e7f 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -50,6 +50,7 @@ be stronger. Except where noted below, we speak only for ourselves, and not for any company we might work for today, have in the past, or will in the future. + - Laura Abbott - Bjorn Andersson (Linaro) - Andrea Arcangeli (Red Hat) - Neil Armstrong -- cgit v1.2.3 From 0f38672c629b79fa2b929d2c391bc063a08279eb Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Tue, 3 Oct 2017 20:09:14 +0900 Subject: usb: renesas_usbhs: add support for R-Car D3 This patch adds support for R-Car D3. This SoC needs to release the PLL reset by the UGCTRL register. So, since this is not the same as other R-Car Gen3 SoCs, this patch adds a new type as "USBHS_TYPE_RCAR_GEN3_WITH_PLL". Acked-by: Rob Herring Signed-off-by: Yoshihiro Shimoda Signed-off-by: Felipe Balbi --- .../devicetree/bindings/usb/renesas_usbhs.txt | 1 + drivers/usb/renesas_usbhs/common.c | 10 ++++- drivers/usb/renesas_usbhs/rcar3.c | 48 ++++++++++++++++++++++ drivers/usb/renesas_usbhs/rcar3.h | 1 + include/linux/usb/renesas_usbhs.h | 5 ++- 5 files changed, 62 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt index 9e18e000339e..e79f6e43061a 100644 --- a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt +++ b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt @@ -10,6 +10,7 @@ Required properties: - "renesas,usbhs-r8a7794" for r8a7794 (R-Car E2) compatible device - "renesas,usbhs-r8a7795" for r8a7795 (R-Car H3) compatible device - "renesas,usbhs-r8a7796" for r8a7796 (R-Car M3-W) compatible device + - "renesas,usbhs-r8a77995" for r8a77995 (R-Car D3) compatible device - "renesas,rcar-gen2-usbhs" for R-Car Gen2 compatible device - "renesas,rcar-gen3-usbhs" for R-Car Gen3 compatible device diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index 2a860e496b4f..3e92a784c5c3 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -485,6 +485,10 @@ static const struct of_device_id usbhs_of_match[] = { .compatible = "renesas,usbhs-r8a7796", .data = (void *)USBHS_TYPE_RCAR_GEN3, }, + { + .compatible = "renesas,usbhs-r8a77995", + .data = (void *)USBHS_TYPE_RCAR_GEN3_WITH_PLL, + }, { .compatible = "renesas,rcar-gen2-usbhs", .data = (void *)USBHS_TYPE_RCAR_GEN2, @@ -519,7 +523,8 @@ static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev) dparam->enable_gpio = gpio; if (dparam->type == USBHS_TYPE_RCAR_GEN2 || - dparam->type == USBHS_TYPE_RCAR_GEN3) { + dparam->type == USBHS_TYPE_RCAR_GEN3 || + dparam->type == USBHS_TYPE_RCAR_GEN3_WITH_PLL) { dparam->has_usb_dmac = 1; dparam->pipe_configs = usbhsc_new_pipe; dparam->pipe_size = ARRAY_SIZE(usbhsc_new_pipe); @@ -584,6 +589,9 @@ static int usbhs_probe(struct platform_device *pdev) case USBHS_TYPE_RCAR_GEN3: priv->pfunc = usbhs_rcar3_ops; break; + case USBHS_TYPE_RCAR_GEN3_WITH_PLL: + priv->pfunc = usbhs_rcar3_with_pll_ops; + break; default: if (!info->platform_callback.get_id) { dev_err(&pdev->dev, "no platform callbacks"); diff --git a/drivers/usb/renesas_usbhs/rcar3.c b/drivers/usb/renesas_usbhs/rcar3.c index 02b67abfc2a1..f436e9d51127 100644 --- a/drivers/usb/renesas_usbhs/rcar3.c +++ b/drivers/usb/renesas_usbhs/rcar3.c @@ -15,24 +15,39 @@ #include "rcar3.h" #define LPSTS 0x102 +#define UGCTRL 0x180 /* 32-bit register */ #define UGCTRL2 0x184 /* 32-bit register */ +#define UGSTS 0x188 /* 32-bit register */ /* Low Power Status register (LPSTS) */ #define LPSTS_SUSPM 0x4000 +/* R-Car D3 only: USB General control register (UGCTRL) */ +#define UGCTRL_PLLRESET 0x00000001 +#define UGCTRL_CONNECT 0x00000004 + /* * USB General control register 2 (UGCTRL2) * Remarks: bit[31:11] and bit[9:6] should be 0 */ #define UGCTRL2_RESERVED_3 0x00000001 /* bit[3:0] should be B'0001 */ +#define UGCTRL2_USB0SEL_HSUSB 0x00000020 #define UGCTRL2_USB0SEL_OTG 0x00000030 #define UGCTRL2_VBUSSEL 0x00000400 +/* R-Car D3 only: USB General status register (UGSTS) */ +#define UGSTS_LOCK 0x00000100 + static void usbhs_write32(struct usbhs_priv *priv, u32 reg, u32 data) { iowrite32(data, priv->base + reg); } +static u32 usbhs_read32(struct usbhs_priv *priv, u32 reg) +{ + return ioread32(priv->base + reg); +} + static int usbhs_rcar3_power_ctrl(struct platform_device *pdev, void __iomem *base, int enable) { @@ -52,6 +67,34 @@ static int usbhs_rcar3_power_ctrl(struct platform_device *pdev, return 0; } +/* R-Car D3 needs to release UGCTRL.PLLRESET */ +static int usbhs_rcar3_power_and_pll_ctrl(struct platform_device *pdev, + void __iomem *base, int enable) +{ + struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev); + u32 val; + int timeout = 1000; + + if (enable) { + usbhs_write32(priv, UGCTRL, 0); /* release PLLRESET */ + usbhs_write32(priv, UGCTRL2, UGCTRL2_RESERVED_3 | + UGCTRL2_USB0SEL_HSUSB); + + usbhs_bset(priv, LPSTS, LPSTS_SUSPM, LPSTS_SUSPM); + do { + val = usbhs_read32(priv, UGSTS); + udelay(1); + } while (!(val & UGSTS_LOCK) && timeout--); + usbhs_write32(priv, UGCTRL, UGCTRL_CONNECT); + } else { + usbhs_write32(priv, UGCTRL, 0); + usbhs_bset(priv, LPSTS, LPSTS_SUSPM, 0); + usbhs_write32(priv, UGCTRL, UGCTRL_PLLRESET); + } + + return 0; +} + static int usbhs_rcar3_get_id(struct platform_device *pdev) { return USBHS_GADGET; @@ -61,3 +104,8 @@ const struct renesas_usbhs_platform_callback usbhs_rcar3_ops = { .power_ctrl = usbhs_rcar3_power_ctrl, .get_id = usbhs_rcar3_get_id, }; + +const struct renesas_usbhs_platform_callback usbhs_rcar3_with_pll_ops = { + .power_ctrl = usbhs_rcar3_power_and_pll_ctrl, + .get_id = usbhs_rcar3_get_id, +}; diff --git a/drivers/usb/renesas_usbhs/rcar3.h b/drivers/usb/renesas_usbhs/rcar3.h index 5f850b23ff18..7fe98175f94f 100644 --- a/drivers/usb/renesas_usbhs/rcar3.h +++ b/drivers/usb/renesas_usbhs/rcar3.h @@ -1,3 +1,4 @@ #include "common.h" extern const struct renesas_usbhs_platform_callback usbhs_rcar3_ops; +extern const struct renesas_usbhs_platform_callback usbhs_rcar3_with_pll_ops; diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h index 00a47d058d83..d2f41e4dd7a8 100644 --- a/include/linux/usb/renesas_usbhs.h +++ b/include/linux/usb/renesas_usbhs.h @@ -183,8 +183,9 @@ struct renesas_usbhs_driver_param { #define USBHS_USB_DMAC_XFER_SIZE 32 /* hardcode the xfer size */ }; -#define USBHS_TYPE_RCAR_GEN2 1 -#define USBHS_TYPE_RCAR_GEN3 2 +#define USBHS_TYPE_RCAR_GEN2 1 +#define USBHS_TYPE_RCAR_GEN3 2 +#define USBHS_TYPE_RCAR_GEN3_WITH_PLL 3 /* * option: -- cgit v1.2.3 From 279d4bc6406022461713cd6a3e5411336d2ff26b Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Fri, 29 Sep 2017 20:45:01 +0900 Subject: usb: gadget: udc: renesas_usb3: add support for generic phy This patch adds support for generic phy as an optional. If you want to use a generic phy (e.g. phy-rcar-gen3-usb3 driver) on this driver, you have to do "insmod phy-rcar-gen3-usb3.ko" first for now. Acked-by: Rob Herring Signed-off-by: Yoshihiro Shimoda Signed-off-by: Felipe Balbi --- .../devicetree/bindings/usb/renesas_usb3.txt | 4 ++++ drivers/usb/gadget/udc/renesas_usb3.c | 26 ++++++++++++++++++++-- 2 files changed, 28 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/renesas_usb3.txt b/Documentation/devicetree/bindings/usb/renesas_usb3.txt index e28025883b79..87a45e2f9b7f 100644 --- a/Documentation/devicetree/bindings/usb/renesas_usb3.txt +++ b/Documentation/devicetree/bindings/usb/renesas_usb3.txt @@ -15,6 +15,10 @@ Required properties: - interrupts: Interrupt specifier for the USB3.0 Peripheral - clocks: clock phandle and specifier pair +Optional properties: + - phys: phandle + phy specifier pair + - phy-names: must be "usb" + Example of R-Car H3 ES1.x: usb3_peri0: usb@ee020000 { compatible = "renesas,r8a7795-usb3-peri", diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index 75afc4c4bbd8..0cbf909182a2 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -1,7 +1,7 @@ /* * Renesas USB3.0 Peripheral driver (USB gadget) * - * Copyright (C) 2015 Renesas Electronics Corporation + * Copyright (C) 2015-2017 Renesas Electronics Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -334,6 +335,7 @@ struct renesas_usb3 { struct usb_gadget_driver *driver; struct extcon_dev *extcon; struct work_struct extcon_work; + struct phy *phy; struct renesas_usb3_ep *usb3_ep; int num_usb3_eps; @@ -2239,6 +2241,9 @@ static int renesas_usb3_start(struct usb_gadget *gadget, /* hook up the driver */ usb3->driver = driver; + if (usb3->phy) + phy_init(usb3->phy); + pm_runtime_get_sync(usb3_to_dev(usb3)); renesas_usb3_init_controller(usb3); @@ -2255,6 +2260,9 @@ static int renesas_usb3_stop(struct usb_gadget *gadget) usb3->driver = NULL; renesas_usb3_stop_controller(usb3); + if (usb3->phy) + phy_exit(usb3->phy); + pm_runtime_put(usb3_to_dev(usb3)); return 0; @@ -2403,6 +2411,8 @@ static int renesas_usb3_remove(struct platform_device *pdev) renesas_usb3_dma_free_prd(usb3, &pdev->dev); __renesas_usb3_ep_free_request(usb3->ep0_req); + if (usb3->phy) + phy_put(usb3->phy); pm_runtime_disable(usb3_to_dev(usb3)); return 0; @@ -2634,11 +2644,19 @@ static int renesas_usb3_probe(struct platform_device *pdev) if (ret < 0) goto err_dev_create; + /* + * This is an optional. So, if this driver cannot get a phy, + * this driver will not handle a phy anymore. + */ + usb3->phy = devm_phy_get(&pdev->dev, "usb"); + if (IS_ERR(usb3->phy)) + usb3->phy = NULL; + usb3->workaround_for_vbus = priv->workaround_for_vbus; renesas_usb3_debugfs_init(usb3, &pdev->dev); - dev_info(&pdev->dev, "probed\n"); + dev_info(&pdev->dev, "probed%s\n", usb3->phy ? " with phy" : ""); pm_runtime_enable(usb3_to_dev(usb3)); return 0; @@ -2665,6 +2683,8 @@ static int renesas_usb3_suspend(struct device *dev) return 0; renesas_usb3_stop_controller(usb3); + if (usb3->phy) + phy_exit(usb3->phy); pm_runtime_put(dev); return 0; @@ -2678,6 +2698,8 @@ static int renesas_usb3_resume(struct device *dev) if (!usb3->driver) return 0; + if (usb3->phy) + phy_init(usb3->phy); pm_runtime_get_sync(dev); renesas_usb3_init_controller(usb3); -- cgit v1.2.3 From 000777dadc7e22d3656bc9f30dde2ba40d069a2f Mon Sep 17 00:00:00 2001 From: Amelie Delaunay Date: Thu, 17 Aug 2017 11:33:00 +0200 Subject: dt-bindings: usb: Document the STM32F7xx DWC2 USB OTG HS core binding This patch adds binding documentation for DWC2 controller in HS mode found on STMicroelectronics STM32F7xx SoC. Signed-off-by: Amelie Delaunay Signed-off-by: Felipe Balbi --- Documentation/devicetree/bindings/usb/dwc2.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt index fcf199b64d3d..e64d903bcbe8 100644 --- a/Documentation/devicetree/bindings/usb/dwc2.txt +++ b/Documentation/devicetree/bindings/usb/dwc2.txt @@ -19,6 +19,8 @@ Required properties: configured in FS mode; - "st,stm32f4x9-hsotg": The DWC2 USB HS controller instance in STM32F4x9 SoCs configured in HS mode; + - "st,stm32f7xx-hsotg": The DWC2 USB HS controller instance in STM32F7xx SoCs + configured in HS mode; - reg : Should contain 1 register range (address and length) - interrupts : Should contain 1 interrupt - clocks: clock provider specifier -- cgit v1.2.3 From 85a299d52766a60d3a1ce0dc168646656060fc89 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Fri, 13 Oct 2017 17:10:47 +0800 Subject: dt-bindings: usb: mtu3: add a optional property to disable u3ports Add a new optional property to disable u3ports Signed-off-by: Chunfeng Yun Signed-off-by: Felipe Balbi --- Documentation/devicetree/bindings/usb/mediatek,mtu3.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt index 49f54767cd21..7c611d14a0a0 100644 --- a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt +++ b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt @@ -44,6 +44,8 @@ Optional properties: - mediatek,enable-wakeup : supports ip sleep wakeup used by host mode - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup control register, it depends on "mediatek,enable-wakeup". + - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0, + bit1 for u3port1, ... etc; Sub-nodes: The xhci should be added as subnode to mtu3 as shown in the following example -- cgit v1.2.3 From fc3a41aa696ca588cde95ae348bce999bf08f234 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Fri, 13 Oct 2017 17:10:48 +0800 Subject: dt-bindings: usb: mtu3: remove dummy clocks and add optional ones Remove dummy clocks for usb wakeup and add optional ones for mcu_bus and dma_bus bus. Signed-off-by: Chunfeng Yun Signed-off-by: Felipe Balbi --- Documentation/devicetree/bindings/usb/mediatek,mtu3.txt | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt index 7c611d14a0a0..49c982bb5bfc 100644 --- a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt +++ b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt @@ -14,9 +14,9 @@ Required properties: - vusb33-supply : regulator of USB avdd3.3v - clocks : a list of phandle + clock-specifier pairs, one for each entry in clock-names - - clock-names : must contain "sys_ck" and "ref_ck" for clock of controller; - "wakeup_deb_p0" and "wakeup_deb_p1" are optional, they are - depends on "mediatek,enable-wakeup" + - clock-names : must contain "sys_ck" for clock of controller, + the following clocks are optional: + "ref_ck", "mcu_ck" and "dam_ck"; - phys : a list of phandle + phy specifier pairs - dr_mode : should be one of "host", "peripheral" or "otg", refer to usb/generic.txt @@ -65,9 +65,7 @@ ssusb: usb@11271000 { clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>, <&pericfg CLK_PERI_USB0>, <&pericfg CLK_PERI_USB1>; - clock-names = "sys_ck", "ref_ck", - "wakeup_deb_p0", - "wakeup_deb_p1"; + clock-names = "sys_ck", "ref_ck"; vusb33-supply = <&mt6397_vusb_reg>; vbus-supply = <&usb_p0_vbus>; extcon = <&extcon_usb>; -- cgit v1.2.3 From 32428aa22d08a1be660b571a0f71880e5a9dd926 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Fri, 13 Oct 2017 17:10:49 +0800 Subject: dt-bindings: usb: mtu3: remove optional pinctrls Remove optional pinctrls due to using FORCE/RG_IDDIG to implement manual switch function. Signed-off-by: Chunfeng Yun Signed-off-by: Felipe Balbi --- Documentation/devicetree/bindings/usb/mediatek,mtu3.txt | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt index 49c982bb5bfc..b2271d8e6b50 100644 --- a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt +++ b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt @@ -30,9 +30,10 @@ Optional properties: when supports dual-role mode. - vbus-supply : reference to the VBUS regulator, needed when supports dual-role mode. - - pinctl-names : a pinctrl state named "default" must be defined, - "id_float" and "id_ground" are optinal which depends on - "mediatek,enable-manual-drd" + - pinctrl-names : a pinctrl state named "default" is optional, and need be + defined if auto drd switch is enabled, that means the property dr_mode + is set as "otg", and meanwhile the property "mediatek,enable-manual-drd" + is not set. - pinctrl-0 : pin control group See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt -- cgit v1.2.3 From e0d63c4083852e07655dfcda1320504c304218be Mon Sep 17 00:00:00 2001 From: Biju Das Date: Fri, 6 Oct 2017 17:49:34 +0100 Subject: usb: renesas_usbhs: Add compatible string for r8a7743/5 This patch adds support for r8a7743/5 SoCs. The Renesas RZ/G1[ME] (R8A7743/5) usbhs is identical to the R-Car Gen2 family. No driver change is needed due to the fallback compatible value "renesas,rcar-gen2-usbhs". Adding the SoC-specific compatible values here has two purposes: 1. Document which SoCs have this hardware module, 2. Allow checkpatch to validate compatible values. Acked-by: Rob Herring Acked-by: Simon Horman Signed-off-by: Biju Das Signed-off-by: Chris Paterson Reviewed-by: Yoshihiro Shimoda Reviewed-by: Geert Uytterhoeven Signed-off-by: Felipe Balbi --- Documentation/devicetree/bindings/usb/renesas_usbhs.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt index e79f6e43061a..47394ab788e3 100644 --- a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt +++ b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt @@ -3,6 +3,8 @@ Renesas Electronics USBHS driver Required properties: - compatible: Must contain one or more of the following: + - "renesas,usbhs-r8a7743" for r8a7743 (RZ/G1M) compatible device + - "renesas,usbhs-r8a7745" for r8a7745 (RZ/G1E) compatible device - "renesas,usbhs-r8a7790" for r8a7790 (R-Car H2) compatible device - "renesas,usbhs-r8a7791" for r8a7791 (R-Car M2-W) compatible device - "renesas,usbhs-r8a7792" for r8a7792 (R-Car V2H) compatible device @@ -11,7 +13,7 @@ Required properties: - "renesas,usbhs-r8a7795" for r8a7795 (R-Car H3) compatible device - "renesas,usbhs-r8a7796" for r8a7796 (R-Car M3-W) compatible device - "renesas,usbhs-r8a77995" for r8a77995 (R-Car D3) compatible device - - "renesas,rcar-gen2-usbhs" for R-Car Gen2 compatible device + - "renesas,rcar-gen2-usbhs" for R-Car Gen2 or RZ/G1 compatible devices - "renesas,rcar-gen3-usbhs" for R-Car Gen3 compatible device When compatible with the generic version, nodes must list the -- cgit v1.2.3 From 93862e385ded7c60351e09fcd2a541d273650905 Mon Sep 17 00:00:00 2001 From: Joe Lawrence Date: Fri, 13 Oct 2017 15:08:41 -0400 Subject: livepatch: add (un)patch callbacks Provide livepatch modules a klp_object (un)patching notification mechanism. Pre and post-(un)patch callbacks allow livepatch modules to setup or synchronize changes that would be difficult to support in only patched-or-unpatched code contexts. Callbacks can be registered for target module or vmlinux klp_objects, but each implementation is klp_object specific. - Pre-(un)patch callbacks run before any (un)patching transition starts. - Post-(un)patch callbacks run once an object has been (un)patched and the klp_patch fully transitioned to its target state. Example use cases include modification of global data and registration of newly available services/handlers. See Documentation/livepatch/callbacks.txt for details and samples/livepatch/ for examples. Signed-off-by: Joe Lawrence Acked-by: Josh Poimboeuf Acked-by: Miroslav Benes Signed-off-by: Jiri Kosina --- Documentation/livepatch/callbacks.txt | 605 ++++++++++++++++++++++++ include/linux/livepatch.h | 26 + kernel/livepatch/core.c | 51 +- kernel/livepatch/core.h | 38 ++ kernel/livepatch/patch.c | 1 + kernel/livepatch/transition.c | 21 +- samples/livepatch/Makefile | 3 + samples/livepatch/livepatch-callbacks-busymod.c | 72 +++ samples/livepatch/livepatch-callbacks-demo.c | 234 +++++++++ samples/livepatch/livepatch-callbacks-mod.c | 53 +++ 10 files changed, 1091 insertions(+), 13 deletions(-) create mode 100644 Documentation/livepatch/callbacks.txt create mode 100644 samples/livepatch/livepatch-callbacks-busymod.c create mode 100644 samples/livepatch/livepatch-callbacks-demo.c create mode 100644 samples/livepatch/livepatch-callbacks-mod.c (limited to 'Documentation') diff --git a/Documentation/livepatch/callbacks.txt b/Documentation/livepatch/callbacks.txt new file mode 100644 index 000000000000..c9776f48e458 --- /dev/null +++ b/Documentation/livepatch/callbacks.txt @@ -0,0 +1,605 @@ +====================== +(Un)patching Callbacks +====================== + +Livepatch (un)patch-callbacks provide a mechanism for livepatch modules +to execute callback functions when a kernel object is (un)patched. They +can be considered a "power feature" that extends livepatching abilities +to include: + + - Safe updates to global data + + - "Patches" to init and probe functions + + - Patching otherwise unpatchable code (i.e. assembly) + +In most cases, (un)patch callbacks will need to be used in conjunction +with memory barriers and kernel synchronization primitives, like +mutexes/spinlocks, or even stop_machine(), to avoid concurrency issues. + +Callbacks differ from existing kernel facilities: + + - Module init/exit code doesn't run when disabling and re-enabling a + patch. + + - A module notifier can't stop a to-be-patched module from loading. + +Callbacks are part of the klp_object structure and their implementation +is specific to that klp_object. Other livepatch objects may or may not +be patched, irrespective of the target klp_object's current state. + +Callbacks can be registered for the following livepatch actions: + + * Pre-patch - before a klp_object is patched + + * Post-patch - after a klp_object has been patched and is active + across all tasks + + * Pre-unpatch - before a klp_object is unpatched (ie, patched code is + active), used to clean up post-patch callback + resources + + * Post-unpatch - after a klp_object has been patched, all code has + been restored and no tasks are running patched code, + used to cleanup pre-patch callback resources + +Each callback is optional, omitting one does not preclude specifying any +other. However, the livepatching core executes the handlers in +symmetry: pre-patch callbacks have a post-unpatch counterpart and +post-patch callbacks have a pre-unpatch counterpart. An unpatch +callback will only be executed if its corresponding patch callback was +executed. Typical use cases pair a patch handler that acquires and +configures resources with an unpatch handler tears down and releases +those same resources. + +A callback is only executed if its host klp_object is loaded. For +in-kernel vmlinux targets, this means that callbacks will always execute +when a livepatch is enabled/disabled. For patch target kernel modules, +callbacks will only execute if the target module is loaded. When a +module target is (un)loaded, its callbacks will execute only if the +livepatch module is enabled. + +The pre-patch callback, if specified, is expected to return a status +code (0 for success, -ERRNO on error). An error status code indicates +to the livepatching core that patching of the current klp_object is not +safe and to stop the current patching request. (When no pre-patch +callback is provided, the transition is assumed to be safe.) If a +pre-patch callback returns failure, the kernel's module loader will: + + - Refuse to load a livepatch, if the livepatch is loaded after + targeted code. + + or: + + - Refuse to load a module, if the livepatch was already successfully + loaded. + +No post-patch, pre-unpatch, or post-unpatch callbacks will be executed +for a given klp_object if the object failed to patch, due to a failed +pre_patch callback or for any other reason. + +If a patch transition is reversed, no pre-unpatch handlers will be run +(this follows the previously mentioned symmetry -- pre-unpatch callbacks +will only occur if their corresponding post-patch callback executed). + +If the object did successfully patch, but the patch transition never +started for some reason (e.g., if another object failed to patch), +only the post-unpatch callback will be called. + + +Example Use-cases +================= + +Update global data +------------------ + +A pre-patch callback can be useful to update a global variable. For +example, 75ff39ccc1bd ("tcp: make challenge acks less predictable") +changes a global sysctl, as well as patches the tcp_send_challenge_ack() +function. + +In this case, if we're being super paranoid, it might make sense to +patch the data *after* patching is complete with a post-patch callback, +so that tcp_send_challenge_ack() could first be changed to read +sysctl_tcp_challenge_ack_limit with READ_ONCE. + + +Support __init and probe function patches +----------------------------------------- + +Although __init and probe functions are not directly livepatch-able, it +may be possible to implement similar updates via pre/post-patch +callbacks. + +48900cb6af42 ("virtio-net: drop NETIF_F_FRAGLIST") change the way that +virtnet_probe() initialized its driver's net_device features. A +pre/post-patch callback could iterate over all such devices, making a +similar change to their hw_features value. (Client functions of the +value may need to be updated accordingly.) + + +Test cases +========== + +What follows is not an exhaustive test suite of every possible livepatch +pre/post-(un)patch combination, but a selection that demonstrates a few +important concepts. Each test case uses the kernel modules located in +the samples/livepatch/ and assumes that no livepatches are loaded at the +beginning of the test. + + +Test 1 +------ + +Test a combination of loading a kernel module and a livepatch that +patches a function in the first module. (Un)load the target module +before the livepatch module: + +- load target module +- load livepatch +- disable livepatch +- unload target module +- unload livepatch + +First load a target module: + + % insmod samples/livepatch/livepatch-callbacks-mod.ko + [ 34.475708] livepatch_callbacks_mod: livepatch_callbacks_mod_init + +On livepatch enable, before the livepatch transition starts, pre-patch +callbacks are executed for vmlinux and livepatch_callbacks_mod (those +klp_objects currently loaded). After klp_objects are patched according +to the klp_patch, their post-patch callbacks run and the transition +completes: + + % insmod samples/livepatch/livepatch-callbacks-demo.ko + [ 36.503719] livepatch: enabling patch 'livepatch_callbacks_demo' + [ 36.504213] livepatch: 'livepatch_callbacks_demo': initializing patching transition + [ 36.504238] livepatch_callbacks_demo: pre_patch_callback: vmlinux + [ 36.504721] livepatch_callbacks_demo: pre_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_LIVE] Normal state + [ 36.505849] livepatch: 'livepatch_callbacks_demo': starting patching transition + [ 37.727133] livepatch: 'livepatch_callbacks_demo': completing patching transition + [ 37.727232] livepatch_callbacks_demo: post_patch_callback: vmlinux + [ 37.727860] livepatch_callbacks_demo: post_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_LIVE] Normal state + [ 37.728792] livepatch: 'livepatch_callbacks_demo': patching complete + +Similarly, on livepatch disable, pre-patch callbacks run before the +unpatching transition starts. klp_objects are reverted, post-patch +callbacks execute and the transition completes: + + % echo 0 > /sys/kernel/livepatch/livepatch_callbacks_demo/enabled + [ 38.510209] livepatch: 'livepatch_callbacks_demo': initializing unpatching transition + [ 38.510234] livepatch_callbacks_demo: pre_unpatch_callback: vmlinux + [ 38.510982] livepatch_callbacks_demo: pre_unpatch_callback: livepatch_callbacks_mod -> [MODULE_STATE_LIVE] Normal state + [ 38.512209] livepatch: 'livepatch_callbacks_demo': starting unpatching transition + [ 39.711132] livepatch: 'livepatch_callbacks_demo': completing unpatching transition + [ 39.711210] livepatch_callbacks_demo: post_unpatch_callback: vmlinux + [ 39.711779] livepatch_callbacks_demo: post_unpatch_callback: livepatch_callbacks_mod -> [MODULE_STATE_LIVE] Normal state + [ 39.712735] livepatch: 'livepatch_callbacks_demo': unpatching complete + + % rmmod samples/livepatch/livepatch-callbacks-demo.ko + % rmmod samples/livepatch/livepatch-callbacks-mod.ko + [ 42.534183] livepatch_callbacks_mod: livepatch_callbacks_mod_exit + + +Test 2 +------ + +This test is similar to the previous test, but (un)load the livepatch +module before the target kernel module. This tests the livepatch core's +module_coming handler: + +- load livepatch +- load target module +- disable livepatch +- unload livepatch +- unload target module + + +On livepatch enable, only pre/post-patch callbacks are executed for +currently loaded klp_objects, in this case, vmlinux: + + % insmod samples/livepatch/livepatch-callbacks-demo.ko + [ 44.553328] livepatch: enabling patch 'livepatch_callbacks_demo' + [ 44.553997] livepatch: 'livepatch_callbacks_demo': initializing patching transition + [ 44.554049] livepatch_callbacks_demo: pre_patch_callback: vmlinux + [ 44.554845] livepatch: 'livepatch_callbacks_demo': starting patching transition + [ 45.727128] livepatch: 'livepatch_callbacks_demo': completing patching transition + [ 45.727212] livepatch_callbacks_demo: post_patch_callback: vmlinux + [ 45.727961] livepatch: 'livepatch_callbacks_demo': patching complete + +When a targeted module is subsequently loaded, only its pre/post-patch +callbacks are executed: + + % insmod samples/livepatch/livepatch-callbacks-mod.ko + [ 46.560845] livepatch: applying patch 'livepatch_callbacks_demo' to loading module 'livepatch_callbacks_mod' + [ 46.561988] livepatch_callbacks_demo: pre_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init + [ 46.563452] livepatch_callbacks_demo: post_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init + [ 46.565495] livepatch_callbacks_mod: livepatch_callbacks_mod_init + +On livepatch disable, all currently loaded klp_objects' (vmlinux and +livepatch_callbacks_mod) pre/post-unpatch callbacks are executed: + + % echo 0 > /sys/kernel/livepatch/livepatch_callbacks_demo/enabled + [ 48.568885] livepatch: 'livepatch_callbacks_demo': initializing unpatching transition + [ 48.568910] livepatch_callbacks_demo: pre_unpatch_callback: vmlinux + [ 48.569441] livepatch_callbacks_demo: pre_unpatch_callback: livepatch_callbacks_mod -> [MODULE_STATE_LIVE] Normal state + [ 48.570502] livepatch: 'livepatch_callbacks_demo': starting unpatching transition + [ 49.759091] livepatch: 'livepatch_callbacks_demo': completing unpatching transition + [ 49.759171] livepatch_callbacks_demo: post_unpatch_callback: vmlinux + [ 49.759742] livepatch_callbacks_demo: post_unpatch_callback: livepatch_callbacks_mod -> [MODULE_STATE_LIVE] Normal state + [ 49.760690] livepatch: 'livepatch_callbacks_demo': unpatching complete + + % rmmod samples/livepatch/livepatch-callbacks-demo.ko + % rmmod samples/livepatch/livepatch-callbacks-mod.ko + [ 52.592283] livepatch_callbacks_mod: livepatch_callbacks_mod_exit + + +Test 3 +------ + +Test loading the livepatch after a targeted kernel module, then unload +the kernel module before disabling the livepatch. This tests the +livepatch core's module_going handler: + +- load target module +- load livepatch +- unload target module +- disable livepatch +- unload livepatch + +First load a target module, then the livepatch: + + % insmod samples/livepatch/livepatch-callbacks-mod.ko + [ 54.607948] livepatch_callbacks_mod: livepatch_callbacks_mod_init + + % insmod samples/livepatch/livepatch-callbacks-demo.ko + [ 56.613919] livepatch: enabling patch 'livepatch_callbacks_demo' + [ 56.614411] livepatch: 'livepatch_callbacks_demo': initializing patching transition + [ 56.614436] livepatch_callbacks_demo: pre_patch_callback: vmlinux + [ 56.614818] livepatch_callbacks_demo: pre_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_LIVE] Normal state + [ 56.615656] livepatch: 'livepatch_callbacks_demo': starting patching transition + [ 57.759070] livepatch: 'livepatch_callbacks_demo': completing patching transition + [ 57.759147] livepatch_callbacks_demo: post_patch_callback: vmlinux + [ 57.759621] livepatch_callbacks_demo: post_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_LIVE] Normal state + [ 57.760307] livepatch: 'livepatch_callbacks_demo': patching complete + +When a target module is unloaded, the livepatch is only reverted from +that klp_object (livepatch_callbacks_mod). As such, only its pre and +post-unpatch callbacks are executed when this occurs: + + % rmmod samples/livepatch/livepatch-callbacks-mod.ko + [ 58.623409] livepatch_callbacks_mod: livepatch_callbacks_mod_exit + [ 58.623903] livepatch_callbacks_demo: pre_unpatch_callback: livepatch_callbacks_mod -> [MODULE_STATE_GOING] Going away + [ 58.624658] livepatch: reverting patch 'livepatch_callbacks_demo' on unloading module 'livepatch_callbacks_mod' + [ 58.625305] livepatch_callbacks_demo: post_unpatch_callback: livepatch_callbacks_mod -> [MODULE_STATE_GOING] Going away + +When the livepatch is disabled, pre and post-unpatch callbacks are run +for the remaining klp_object, vmlinux: + + % echo 0 > /sys/kernel/livepatch/livepatch_callbacks_demo/enabled + [ 60.638420] livepatch: 'livepatch_callbacks_demo': initializing unpatching transition + [ 60.638444] livepatch_callbacks_demo: pre_unpatch_callback: vmlinux + [ 60.638996] livepatch: 'livepatch_callbacks_demo': starting unpatching transition + [ 61.727088] livepatch: 'livepatch_callbacks_demo': completing unpatching transition + [ 61.727165] livepatch_callbacks_demo: post_unpatch_callback: vmlinux + [ 61.727985] livepatch: 'livepatch_callbacks_demo': unpatching complete + + % rmmod samples/livepatch/livepatch-callbacks-demo.ko + + +Test 4 +------ + +This test is similar to the previous test, however the livepatch is +loaded first. This tests the livepatch core's module_coming and +module_going handlers: + +- load livepatch +- load target module +- unload target module +- disable livepatch +- unload livepatch + +First load the livepatch: + + % insmod samples/livepatch/livepatch-callbacks-demo.ko + [ 64.661552] livepatch: enabling patch 'livepatch_callbacks_demo' + [ 64.662147] livepatch: 'livepatch_callbacks_demo': initializing patching transition + [ 64.662175] livepatch_callbacks_demo: pre_patch_callback: vmlinux + [ 64.662850] livepatch: 'livepatch_callbacks_demo': starting patching transition + [ 65.695056] livepatch: 'livepatch_callbacks_demo': completing patching transition + [ 65.695147] livepatch_callbacks_demo: post_patch_callback: vmlinux + [ 65.695561] livepatch: 'livepatch_callbacks_demo': patching complete + +When a targeted kernel module is subsequently loaded, only its +pre/post-patch callbacks are executed: + + % insmod samples/livepatch/livepatch-callbacks-mod.ko + [ 66.669196] livepatch: applying patch 'livepatch_callbacks_demo' to loading module 'livepatch_callbacks_mod' + [ 66.669882] livepatch_callbacks_demo: pre_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init + [ 66.670744] livepatch_callbacks_demo: post_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init + [ 66.672873] livepatch_callbacks_mod: livepatch_callbacks_mod_init + +When the target module is unloaded, the livepatch is only reverted from +the livepatch_callbacks_mod klp_object. As such, only pre and +post-unpatch callbacks are executed when this occurs: + + % rmmod samples/livepatch/livepatch-callbacks-mod.ko + [ 68.680065] livepatch_callbacks_mod: livepatch_callbacks_mod_exit + [ 68.680688] livepatch_callbacks_demo: pre_unpatch_callback: livepatch_callbacks_mod -> [MODULE_STATE_GOING] Going away + [ 68.681452] livepatch: reverting patch 'livepatch_callbacks_demo' on unloading module 'livepatch_callbacks_mod' + [ 68.682094] livepatch_callbacks_demo: post_unpatch_callback: livepatch_callbacks_mod -> [MODULE_STATE_GOING] Going away + + % echo 0 > /sys/kernel/livepatch/livepatch_callbacks_demo/enabled + [ 70.689225] livepatch: 'livepatch_callbacks_demo': initializing unpatching transition + [ 70.689256] livepatch_callbacks_demo: pre_unpatch_callback: vmlinux + [ 70.689882] livepatch: 'livepatch_callbacks_demo': starting unpatching transition + [ 71.711080] livepatch: 'livepatch_callbacks_demo': completing unpatching transition + [ 71.711481] livepatch_callbacks_demo: post_unpatch_callback: vmlinux + [ 71.711988] livepatch: 'livepatch_callbacks_demo': unpatching complete + + % rmmod samples/livepatch/livepatch-callbacks-demo.ko + + +Test 5 +------ + +A simple test of loading a livepatch without one of its patch target +klp_objects ever loaded (livepatch_callbacks_mod): + +- load livepatch +- disable livepatch +- unload livepatch + +Load the livepatch: + + % insmod samples/livepatch/livepatch-callbacks-demo.ko + [ 74.711081] livepatch: enabling patch 'livepatch_callbacks_demo' + [ 74.711595] livepatch: 'livepatch_callbacks_demo': initializing patching transition + [ 74.711639] livepatch_callbacks_demo: pre_patch_callback: vmlinux + [ 74.712272] livepatch: 'livepatch_callbacks_demo': starting patching transition + [ 75.743137] livepatch: 'livepatch_callbacks_demo': completing patching transition + [ 75.743219] livepatch_callbacks_demo: post_patch_callback: vmlinux + [ 75.743867] livepatch: 'livepatch_callbacks_demo': patching complete + +As expected, only pre/post-(un)patch handlers are executed for vmlinux: + + % echo 0 > /sys/kernel/livepatch/livepatch_callbacks_demo/enabled + [ 76.716254] livepatch: 'livepatch_callbacks_demo': initializing unpatching transition + [ 76.716278] livepatch_callbacks_demo: pre_unpatch_callback: vmlinux + [ 76.716666] livepatch: 'livepatch_callbacks_demo': starting unpatching transition + [ 77.727089] livepatch: 'livepatch_callbacks_demo': completing unpatching transition + [ 77.727194] livepatch_callbacks_demo: post_unpatch_callback: vmlinux + [ 77.727907] livepatch: 'livepatch_callbacks_demo': unpatching complete + + % rmmod samples/livepatch/livepatch-callbacks-demo.ko + + +Test 6 +------ + +Test a scenario where a vmlinux pre-patch callback returns a non-zero +status (ie, failure): + +- load target module +- load livepatch -ENODEV +- unload target module + +First load a target module: + + % insmod samples/livepatch/livepatch-callbacks-mod.ko + [ 80.740520] livepatch_callbacks_mod: livepatch_callbacks_mod_init + +Load the livepatch module, setting its 'pre_patch_ret' value to -19 +(-ENODEV). When its vmlinux pre-patch callback executed, this status +code will propagate back to the module-loading subsystem. The result is +that the insmod command refuses to load the livepatch module: + + % insmod samples/livepatch/livepatch-callbacks-demo.ko pre_patch_ret=-19 + [ 82.747326] livepatch: enabling patch 'livepatch_callbacks_demo' + [ 82.747743] livepatch: 'livepatch_callbacks_demo': initializing patching transition + [ 82.747767] livepatch_callbacks_demo: pre_patch_callback: vmlinux + [ 82.748237] livepatch: pre-patch callback failed for object 'vmlinux' + [ 82.748637] livepatch: failed to enable patch 'livepatch_callbacks_demo' + [ 82.749059] livepatch: 'livepatch_callbacks_demo': canceling transition, going to unpatch + [ 82.749060] livepatch: 'livepatch_callbacks_demo': completing unpatching transition + [ 82.749868] livepatch: 'livepatch_callbacks_demo': unpatching complete + [ 82.765809] insmod: ERROR: could not insert module samples/livepatch/livepatch-callbacks-demo.ko: No such device + + % rmmod samples/livepatch/livepatch-callbacks-mod.ko + [ 84.774238] livepatch_callbacks_mod: livepatch_callbacks_mod_exit + + +Test 7 +------ + +Similar to the previous test, setup a livepatch such that its vmlinux +pre-patch callback returns success. However, when a targeted kernel +module is later loaded, have the livepatch return a failing status code: + +- load livepatch +- setup -ENODEV +- load target module +- disable livepatch +- unload livepatch + +Load the livepatch, notice vmlinux pre-patch callback succeeds: + + % insmod samples/livepatch/livepatch-callbacks-demo.ko + [ 86.787845] livepatch: enabling patch 'livepatch_callbacks_demo' + [ 86.788325] livepatch: 'livepatch_callbacks_demo': initializing patching transition + [ 86.788427] livepatch_callbacks_demo: pre_patch_callback: vmlinux + [ 86.788821] livepatch: 'livepatch_callbacks_demo': starting patching transition + [ 87.711069] livepatch: 'livepatch_callbacks_demo': completing patching transition + [ 87.711143] livepatch_callbacks_demo: post_patch_callback: vmlinux + [ 87.711886] livepatch: 'livepatch_callbacks_demo': patching complete + +Set a trap so subsequent pre-patch callbacks to this livepatch will +return -ENODEV: + + % echo -19 > /sys/module/livepatch_callbacks_demo/parameters/pre_patch_ret + +The livepatch pre-patch callback for subsequently loaded target modules +will return failure, so the module loader refuses to load the kernel +module. Notice that no post-patch or pre/post-unpatch callbacks are +executed for this klp_object: + + % insmod samples/livepatch/livepatch-callbacks-mod.ko + [ 90.796976] livepatch: applying patch 'livepatch_callbacks_demo' to loading module 'livepatch_callbacks_mod' + [ 90.797834] livepatch_callbacks_demo: pre_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init + [ 90.798900] livepatch: pre-patch callback failed for object 'livepatch_callbacks_mod' + [ 90.799652] livepatch: patch 'livepatch_callbacks_demo' failed for module 'livepatch_callbacks_mod', refusing to load module 'livepatch_callbacks_mod' + [ 90.819737] insmod: ERROR: could not insert module samples/livepatch/livepatch-callbacks-mod.ko: No such device + +However, pre/post-unpatch callbacks run for the vmlinux klp_object: + + % echo 0 > /sys/kernel/livepatch/livepatch_callbacks_demo/enabled + [ 92.823547] livepatch: 'livepatch_callbacks_demo': initializing unpatching transition + [ 92.823573] livepatch_callbacks_demo: pre_unpatch_callback: vmlinux + [ 92.824331] livepatch: 'livepatch_callbacks_demo': starting unpatching transition + [ 93.727128] livepatch: 'livepatch_callbacks_demo': completing unpatching transition + [ 93.727327] livepatch_callbacks_demo: post_unpatch_callback: vmlinux + [ 93.727861] livepatch: 'livepatch_callbacks_demo': unpatching complete + + % rmmod samples/livepatch/livepatch-callbacks-demo.ko + + +Test 8 +------ + +Test loading multiple targeted kernel modules. This test-case is +mainly for comparing with the next test-case. + +- load busy target module (0s sleep), +- load livepatch +- load target module +- unload target module +- disable livepatch +- unload livepatch +- unload busy target module + + +Load a target "busy" kernel module which kicks off a worker function +that immediately exits: + + % insmod samples/livepatch/livepatch-callbacks-busymod.ko sleep_secs=0 + [ 96.910107] livepatch_callbacks_busymod: livepatch_callbacks_mod_init + [ 96.910600] livepatch_callbacks_busymod: busymod_work_func, sleeping 0 seconds ... + [ 96.913024] livepatch_callbacks_busymod: busymod_work_func exit + +Proceed with loading the livepatch and another ordinary target module, +notice that the post-patch callbacks are executed and the transition +completes quickly: + + % insmod samples/livepatch/livepatch-callbacks-demo.ko + [ 98.917892] livepatch: enabling patch 'livepatch_callbacks_demo' + [ 98.918426] livepatch: 'livepatch_callbacks_demo': initializing patching transition + [ 98.918453] livepatch_callbacks_demo: pre_patch_callback: vmlinux + [ 98.918955] livepatch_callbacks_demo: pre_patch_callback: livepatch_callbacks_busymod -> [MODULE_STATE_LIVE] Normal state + [ 98.923835] livepatch: 'livepatch_callbacks_demo': starting patching transition + [ 99.743104] livepatch: 'livepatch_callbacks_demo': completing patching transition + [ 99.743156] livepatch_callbacks_demo: post_patch_callback: vmlinux + [ 99.743679] livepatch_callbacks_demo: post_patch_callback: livepatch_callbacks_busymod -> [MODULE_STATE_LIVE] Normal state + [ 99.744616] livepatch: 'livepatch_callbacks_demo': patching complete + + % insmod samples/livepatch/livepatch-callbacks-mod.ko + [ 100.930955] livepatch: applying patch 'livepatch_callbacks_demo' to loading module 'livepatch_callbacks_mod' + [ 100.931668] livepatch_callbacks_demo: pre_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init + [ 100.932645] livepatch_callbacks_demo: post_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init + [ 100.934125] livepatch_callbacks_mod: livepatch_callbacks_mod_init + + % rmmod samples/livepatch/livepatch-callbacks-mod.ko + [ 102.942805] livepatch_callbacks_mod: livepatch_callbacks_mod_exit + [ 102.943640] livepatch_callbacks_demo: pre_unpatch_callback: livepatch_callbacks_mod -> [MODULE_STATE_GOING] Going away + [ 102.944585] livepatch: reverting patch 'livepatch_callbacks_demo' on unloading module 'livepatch_callbacks_mod' + [ 102.945455] livepatch_callbacks_demo: post_unpatch_callback: livepatch_callbacks_mod -> [MODULE_STATE_GOING] Going away + + % echo 0 > /sys/kernel/livepatch/livepatch_callbacks_demo/enabled + [ 104.953815] livepatch: 'livepatch_callbacks_demo': initializing unpatching transition + [ 104.953838] livepatch_callbacks_demo: pre_unpatch_callback: vmlinux + [ 104.954431] livepatch_callbacks_demo: pre_unpatch_callback: livepatch_callbacks_busymod -> [MODULE_STATE_LIVE] Normal state + [ 104.955426] livepatch: 'livepatch_callbacks_demo': starting unpatching transition + [ 106.719073] livepatch: 'livepatch_callbacks_demo': completing unpatching transition + [ 106.722633] livepatch_callbacks_demo: post_unpatch_callback: vmlinux + [ 106.723282] livepatch_callbacks_demo: post_unpatch_callback: livepatch_callbacks_busymod -> [MODULE_STATE_LIVE] Normal state + [ 106.724279] livepatch: 'livepatch_callbacks_demo': unpatching complete + + % rmmod samples/livepatch/livepatch-callbacks-demo.ko + % rmmod samples/livepatch/livepatch-callbacks-busymod.ko + [ 108.975660] livepatch_callbacks_busymod: livepatch_callbacks_mod_exit + + +Test 9 +------ + +A similar test as the previous one, but force the "busy" kernel module +to do longer work. + +The livepatching core will refuse to patch a task that is currently +executing a to-be-patched function -- the consistency model stalls the +current patch transition until this safety-check is met. Test a +scenario where one of a livepatch's target klp_objects sits on such a +function for a long time. Meanwhile, load and unload other target +kernel modules while the livepatch transition is in progress. + +- load busy target module (30s sleep) +- load livepatch +- load target module +- unload target module +- disable livepatch +- unload livepatch +- unload busy target module + + +Load the "busy" kernel module, this time make it do 30 seconds worth of +work: + + % insmod samples/livepatch/livepatch-callbacks-busymod.ko sleep_secs=30 + [ 110.993362] livepatch_callbacks_busymod: livepatch_callbacks_mod_init + [ 110.994059] livepatch_callbacks_busymod: busymod_work_func, sleeping 30 seconds ... + +Meanwhile, the livepatch is loaded. Notice that the patch transition +does not complete as the targeted "busy" module is sitting on a +to-be-patched function: + + % insmod samples/livepatch/livepatch-callbacks-demo.ko + [ 113.000309] livepatch: enabling patch 'livepatch_callbacks_demo' + [ 113.000764] livepatch: 'livepatch_callbacks_demo': initializing patching transition + [ 113.000791] livepatch_callbacks_demo: pre_patch_callback: vmlinux + [ 113.001289] livepatch_callbacks_demo: pre_patch_callback: livepatch_callbacks_busymod -> [MODULE_STATE_LIVE] Normal state + [ 113.005208] livepatch: 'livepatch_callbacks_demo': starting patching transition + +Load a second target module (this one is an ordinary idle kernel +module). Note that *no* post-patch callbacks will be executed while the +livepatch is still in transition: + + % insmod samples/livepatch/livepatch-callbacks-mod.ko + [ 115.012740] livepatch: applying patch 'livepatch_callbacks_demo' to loading module 'livepatch_callbacks_mod' + [ 115.013406] livepatch_callbacks_demo: pre_patch_callback: livepatch_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init + [ 115.015315] livepatch_callbacks_mod: livepatch_callbacks_mod_init + +Request an unload of the simple kernel module. The patch is still +transitioning, so its pre-unpatch callbacks are skipped: + + % rmmod samples/livepatch/livepatch-callbacks-mod.ko + [ 117.022626] livepatch_callbacks_mod: livepatch_callbacks_mod_exit + [ 117.023376] livepatch: reverting patch 'livepatch_callbacks_demo' on unloading module 'livepatch_callbacks_mod' + [ 117.024533] livepatch_callbacks_demo: post_unpatch_callback: livepatch_callbacks_mod -> [MODULE_STATE_GOING] Going away + +Finally the livepatch is disabled. Since none of the patch's +klp_object's post-patch callbacks executed, the remaining klp_object's +pre-unpatch callbacks are skipped: + + % echo 0 > /sys/kernel/livepatch/livepatch_callbacks_demo/enabled + [ 119.035408] livepatch: 'livepatch_callbacks_demo': reversing transition from patching to unpatching + [ 119.035485] livepatch: 'livepatch_callbacks_demo': starting unpatching transition + [ 119.711166] livepatch: 'livepatch_callbacks_demo': completing unpatching transition + [ 119.714179] livepatch_callbacks_demo: post_unpatch_callback: vmlinux + [ 119.714653] livepatch_callbacks_demo: post_unpatch_callback: livepatch_callbacks_busymod -> [MODULE_STATE_LIVE] Normal state + [ 119.715437] livepatch: 'livepatch_callbacks_demo': unpatching complete + + % rmmod samples/livepatch/livepatch-callbacks-demo.ko + % rmmod samples/livepatch/livepatch-callbacks-busymod.ko + [ 141.279111] livepatch_callbacks_busymod: busymod_work_func exit + [ 141.279760] livepatch_callbacks_busymod: livepatch_callbacks_mod_exit diff --git a/include/linux/livepatch.h b/include/linux/livepatch.h index d08eddc00497..fc5c1be3f6f4 100644 --- a/include/linux/livepatch.h +++ b/include/linux/livepatch.h @@ -87,10 +87,35 @@ struct klp_func { bool transition; }; +struct klp_object; + +/** + * struct klp_callbacks - pre/post live-(un)patch callback structure + * @pre_patch: executed before code patching + * @post_patch: executed after code patching + * @pre_unpatch: executed before code unpatching + * @post_unpatch: executed after code unpatching + * @post_unpatch_enabled: flag indicating if post-unpatch callback + * should run + * + * All callbacks are optional. Only the pre-patch callback, if provided, + * will be unconditionally executed. If the parent klp_object fails to + * patch for any reason, including a non-zero error status returned from + * the pre-patch callback, no further callbacks will be executed. + */ +struct klp_callbacks { + int (*pre_patch)(struct klp_object *obj); + void (*post_patch)(struct klp_object *obj); + void (*pre_unpatch)(struct klp_object *obj); + void (*post_unpatch)(struct klp_object *obj); + bool post_unpatch_enabled; +}; + /** * struct klp_object - kernel object structure for live patching * @name: module name (or NULL for vmlinux) * @funcs: function entries for functions to be patched in the object + * @callbacks: functions to be executed pre/post (un)patching * @kobj: kobject for sysfs resources * @mod: kernel module associated with the patched object * (NULL for vmlinux) @@ -100,6 +125,7 @@ struct klp_object { /* external */ const char *name; struct klp_func *funcs; + struct klp_callbacks callbacks; /* internal */ struct kobject kobj; diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c index b9628e43c78f..cafb5a84417d 100644 --- a/kernel/livepatch/core.c +++ b/kernel/livepatch/core.c @@ -54,11 +54,6 @@ static bool klp_is_module(struct klp_object *obj) return obj->name; } -static bool klp_is_object_loaded(struct klp_object *obj) -{ - return !obj->name || obj->mod; -} - /* sets obj->mod if object is not vmlinux and module is found */ static void klp_find_object_module(struct klp_object *obj) { @@ -285,6 +280,8 @@ static int klp_write_object_relocations(struct module *pmod, static int __klp_disable_patch(struct klp_patch *patch) { + struct klp_object *obj; + if (klp_transition_patch) return -EBUSY; @@ -295,6 +292,10 @@ static int __klp_disable_patch(struct klp_patch *patch) klp_init_transition(patch, KLP_UNPATCHED); + klp_for_each_object(patch, obj) + if (patch->enabled && obj->patched) + klp_pre_unpatch_callback(obj); + /* * Enforce the order of the func->transition writes in * klp_init_transition() and the TIF_PATCH_PENDING writes in @@ -388,13 +389,18 @@ static int __klp_enable_patch(struct klp_patch *patch) if (!klp_is_object_loaded(obj)) continue; - ret = klp_patch_object(obj); + ret = klp_pre_patch_callback(obj); if (ret) { - pr_warn("failed to enable patch '%s'\n", - patch->mod->name); + pr_warn("pre-patch callback failed for object '%s'\n", + klp_is_module(obj) ? obj->name : "vmlinux"); + goto err; + } - klp_cancel_transition(); - return ret; + ret = klp_patch_object(obj); + if (ret) { + pr_warn("failed to patch object '%s'\n", + klp_is_module(obj) ? obj->name : "vmlinux"); + goto err; } } @@ -403,6 +409,11 @@ static int __klp_enable_patch(struct klp_patch *patch) patch->enabled = true; return 0; +err: + pr_warn("failed to enable patch '%s'\n", patch->mod->name); + + klp_cancel_transition(); + return ret; } /** @@ -871,13 +882,27 @@ int klp_module_coming(struct module *mod) pr_notice("applying patch '%s' to loading module '%s'\n", patch->mod->name, obj->mod->name); + ret = klp_pre_patch_callback(obj); + if (ret) { + pr_warn("pre-patch callback failed for object '%s'\n", + obj->name); + goto err; + } + ret = klp_patch_object(obj); if (ret) { pr_warn("failed to apply patch '%s' to module '%s' (%d)\n", patch->mod->name, obj->mod->name, ret); + + if (patch != klp_transition_patch) + klp_post_unpatch_callback(obj); + goto err; } + if (patch != klp_transition_patch) + klp_post_patch_callback(obj); + break; } } @@ -927,9 +952,15 @@ void klp_module_going(struct module *mod) * is in transition. */ if (patch->enabled || patch == klp_transition_patch) { + + if (patch != klp_transition_patch) + klp_pre_unpatch_callback(obj); + pr_notice("reverting patch '%s' on unloading module '%s'\n", patch->mod->name, obj->mod->name); klp_unpatch_object(obj); + + klp_post_unpatch_callback(obj); } klp_free_object_loaded(obj); diff --git a/kernel/livepatch/core.h b/kernel/livepatch/core.h index c74f24c47837..6fc907b54e71 100644 --- a/kernel/livepatch/core.h +++ b/kernel/livepatch/core.h @@ -1,6 +1,44 @@ #ifndef _LIVEPATCH_CORE_H #define _LIVEPATCH_CORE_H +#include + extern struct mutex klp_mutex; +static inline bool klp_is_object_loaded(struct klp_object *obj) +{ + return !obj->name || obj->mod; +} + +static inline int klp_pre_patch_callback(struct klp_object *obj) +{ + int ret; + + ret = (obj->callbacks.pre_patch) ? + (*obj->callbacks.pre_patch)(obj) : 0; + + obj->callbacks.post_unpatch_enabled = !ret; + + return ret; +} + +static inline void klp_post_patch_callback(struct klp_object *obj) +{ + if (obj->callbacks.post_patch) + (*obj->callbacks.post_patch)(obj); +} + +static inline void klp_pre_unpatch_callback(struct klp_object *obj) +{ + if (obj->callbacks.pre_unpatch) + (*obj->callbacks.pre_unpatch)(obj); +} + +static inline void klp_post_unpatch_callback(struct klp_object *obj) +{ + if (obj->callbacks.post_unpatch_enabled && + obj->callbacks.post_unpatch) + (*obj->callbacks.post_unpatch)(obj); +} + #endif /* _LIVEPATCH_CORE_H */ diff --git a/kernel/livepatch/patch.c b/kernel/livepatch/patch.c index 52c4e907c14b..82d584225dc6 100644 --- a/kernel/livepatch/patch.c +++ b/kernel/livepatch/patch.c @@ -28,6 +28,7 @@ #include #include #include +#include "core.h" #include "patch.h" #include "transition.h" diff --git a/kernel/livepatch/transition.c b/kernel/livepatch/transition.c index b004a1fb6032..7bf55b7f3687 100644 --- a/kernel/livepatch/transition.c +++ b/kernel/livepatch/transition.c @@ -109,9 +109,6 @@ static void klp_complete_transition(void) } } - if (klp_target_state == KLP_UNPATCHED && !immediate_func) - module_put(klp_transition_patch->mod); - /* Prevent klp_ftrace_handler() from seeing KLP_UNDEFINED state */ if (klp_target_state == KLP_PATCHED) klp_synchronize_transition(); @@ -130,6 +127,24 @@ static void klp_complete_transition(void) } done: + klp_for_each_object(klp_transition_patch, obj) { + if (!klp_is_object_loaded(obj)) + continue; + if (klp_target_state == KLP_PATCHED) + klp_post_patch_callback(obj); + else if (klp_target_state == KLP_UNPATCHED) + klp_post_unpatch_callback(obj); + } + + /* + * See complementary comment in __klp_enable_patch() for why we + * keep the module reference for immediate patches. + */ + if (!klp_transition_patch->immediate && !immediate_func && + klp_target_state == KLP_UNPATCHED) { + module_put(klp_transition_patch->mod); + } + klp_target_state = KLP_UNDEFINED; klp_transition_patch = NULL; } diff --git a/samples/livepatch/Makefile b/samples/livepatch/Makefile index 539e81d433cd..2472ce39a18d 100644 --- a/samples/livepatch/Makefile +++ b/samples/livepatch/Makefile @@ -2,3 +2,6 @@ obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-sample.o obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-mod.o obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-fix1.o obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-fix2.o +obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-callbacks-demo.o +obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-callbacks-mod.o +obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-callbacks-busymod.o diff --git a/samples/livepatch/livepatch-callbacks-busymod.c b/samples/livepatch/livepatch-callbacks-busymod.c new file mode 100644 index 000000000000..80d06e103f1b --- /dev/null +++ b/samples/livepatch/livepatch-callbacks-busymod.c @@ -0,0 +1,72 @@ +/* + * Copyright (C) 2017 Joe Lawrence + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +/* + * livepatch-callbacks-busymod.c - (un)patching callbacks demo support module + * + * + * Purpose + * ------- + * + * Simple module to demonstrate livepatch (un)patching callbacks. + * + * + * Usage + * ----- + * + * This module is not intended to be standalone. See the "Usage" + * section of livepatch-callbacks-mod.c. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include + +static int sleep_secs; +module_param(sleep_secs, int, 0644); +MODULE_PARM_DESC(sleep_secs, "sleep_secs (default=0)"); + +static void busymod_work_func(struct work_struct *work); +static DECLARE_DELAYED_WORK(work, busymod_work_func); + +static void busymod_work_func(struct work_struct *work) +{ + pr_info("%s, sleeping %d seconds ...\n", __func__, sleep_secs); + msleep(sleep_secs * 1000); + pr_info("%s exit\n", __func__); +} + +static int livepatch_callbacks_mod_init(void) +{ + pr_info("%s\n", __func__); + schedule_delayed_work(&work, + msecs_to_jiffies(1000 * 0)); + return 0; +} + +static void livepatch_callbacks_mod_exit(void) +{ + cancel_delayed_work_sync(&work); + pr_info("%s\n", __func__); +} + +module_init(livepatch_callbacks_mod_init); +module_exit(livepatch_callbacks_mod_exit); +MODULE_LICENSE("GPL"); diff --git a/samples/livepatch/livepatch-callbacks-demo.c b/samples/livepatch/livepatch-callbacks-demo.c new file mode 100644 index 000000000000..3d115bd68442 --- /dev/null +++ b/samples/livepatch/livepatch-callbacks-demo.c @@ -0,0 +1,234 @@ +/* + * Copyright (C) 2017 Joe Lawrence + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +/* + * livepatch-callbacks-demo.c - (un)patching callbacks livepatch demo + * + * + * Purpose + * ------- + * + * Demonstration of registering livepatch (un)patching callbacks. + * + * + * Usage + * ----- + * + * Step 1 - load the simple module + * + * insmod samples/livepatch/livepatch-callbacks-mod.ko + * + * + * Step 2 - load the demonstration livepatch (with callbacks) + * + * insmod samples/livepatch/livepatch-callbacks-demo.ko + * + * + * Step 3 - cleanup + * + * echo 0 > /sys/kernel/livepatch/livepatch_callbacks_demo/enabled + * rmmod livepatch_callbacks_demo + * rmmod livepatch_callbacks_mod + * + * Watch dmesg output to see livepatch enablement, callback execution + * and patching operations for both vmlinux and module targets. + * + * NOTE: swap the insmod order of livepatch-callbacks-mod.ko and + * livepatch-callbacks-demo.ko to observe what happens when a + * target module is loaded after a livepatch with callbacks. + * + * NOTE: 'pre_patch_ret' is a module parameter that sets the pre-patch + * callback return status. Try setting up a non-zero status + * such as -19 (-ENODEV): + * + * # Load demo livepatch, vmlinux is patched + * insmod samples/livepatch/livepatch-callbacks-demo.ko + * + * # Setup next pre-patch callback to return -ENODEV + * echo -19 > /sys/module/livepatch_callbacks_demo/parameters/pre_patch_ret + * + * # Module loader refuses to load the target module + * insmod samples/livepatch/livepatch-callbacks-mod.ko + * insmod: ERROR: could not insert module samples/livepatch/livepatch-callbacks-mod.ko: No such device + * + * NOTE: There is a second target module, + * livepatch-callbacks-busymod.ko, available for experimenting + * with livepatch (un)patch callbacks. This module contains + * a 'sleep_secs' parameter that parks the module on one of the + * functions that the livepatch demo module wants to patch. + * Modifying this value and tweaking the order of module loads can + * effectively demonstrate stalled patch transitions: + * + * # Load a target module, let it park on 'busymod_work_func' for + * # thirty seconds + * insmod samples/livepatch/livepatch-callbacks-busymod.ko sleep_secs=30 + * + * # Meanwhile load the livepatch + * insmod samples/livepatch/livepatch-callbacks-demo.ko + * + * # ... then load and unload another target module while the + * # transition is in progress + * insmod samples/livepatch/livepatch-callbacks-mod.ko + * rmmod samples/livepatch/livepatch-callbacks-mod.ko + * + * # Finally cleanup + * echo 0 > /sys/kernel/livepatch/livepatch_callbacks_demo/enabled + * rmmod samples/livepatch/livepatch-callbacks-demo.ko + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include + +static int pre_patch_ret; +module_param(pre_patch_ret, int, 0644); +MODULE_PARM_DESC(pre_patch_ret, "pre_patch_ret (default=0)"); + +static const char *const module_state[] = { + [MODULE_STATE_LIVE] = "[MODULE_STATE_LIVE] Normal state", + [MODULE_STATE_COMING] = "[MODULE_STATE_COMING] Full formed, running module_init", + [MODULE_STATE_GOING] = "[MODULE_STATE_GOING] Going away", + [MODULE_STATE_UNFORMED] = "[MODULE_STATE_UNFORMED] Still setting it up", +}; + +static void callback_info(const char *callback, struct klp_object *obj) +{ + if (obj->mod) + pr_info("%s: %s -> %s\n", callback, obj->mod->name, + module_state[obj->mod->state]); + else + pr_info("%s: vmlinux\n", callback); +} + +/* Executed on object patching (ie, patch enablement) */ +static int pre_patch_callback(struct klp_object *obj) +{ + callback_info(__func__, obj); + return pre_patch_ret; +} + +/* Executed on object unpatching (ie, patch disablement) */ +static void post_patch_callback(struct klp_object *obj) +{ + callback_info(__func__, obj); +} + +/* Executed on object unpatching (ie, patch disablement) */ +static void pre_unpatch_callback(struct klp_object *obj) +{ + callback_info(__func__, obj); +} + +/* Executed on object unpatching (ie, patch disablement) */ +static void post_unpatch_callback(struct klp_object *obj) +{ + callback_info(__func__, obj); +} + +static void patched_work_func(struct work_struct *work) +{ + pr_info("%s\n", __func__); +} + +static struct klp_func no_funcs[] = { + { } +}; + +static struct klp_func busymod_funcs[] = { + { + .old_name = "busymod_work_func", + .new_func = patched_work_func, + }, { } +}; + +static struct klp_object objs[] = { + { + .name = NULL, /* vmlinux */ + .funcs = no_funcs, + .callbacks = { + .pre_patch = pre_patch_callback, + .post_patch = post_patch_callback, + .pre_unpatch = pre_unpatch_callback, + .post_unpatch = post_unpatch_callback, + }, + }, { + .name = "livepatch_callbacks_mod", + .funcs = no_funcs, + .callbacks = { + .pre_patch = pre_patch_callback, + .post_patch = post_patch_callback, + .pre_unpatch = pre_unpatch_callback, + .post_unpatch = post_unpatch_callback, + }, + }, { + .name = "livepatch_callbacks_busymod", + .funcs = busymod_funcs, + .callbacks = { + .pre_patch = pre_patch_callback, + .post_patch = post_patch_callback, + .pre_unpatch = pre_unpatch_callback, + .post_unpatch = post_unpatch_callback, + }, + }, { } +}; + +static struct klp_patch patch = { + .mod = THIS_MODULE, + .objs = objs, +}; + +static int livepatch_callbacks_demo_init(void) +{ + int ret; + + if (!klp_have_reliable_stack() && !patch.immediate) { + /* + * WARNING: Be very careful when using 'patch.immediate' in + * your patches. It's ok to use it for simple patches like + * this, but for more complex patches which change function + * semantics, locking semantics, or data structures, it may not + * be safe. Use of this option will also prevent removal of + * the patch. + * + * See Documentation/livepatch/livepatch.txt for more details. + */ + patch.immediate = true; + pr_notice("The consistency model isn't supported for your architecture. Bypassing safety mechanisms and applying the patch immediately.\n"); + } + + ret = klp_register_patch(&patch); + if (ret) + return ret; + ret = klp_enable_patch(&patch); + if (ret) { + WARN_ON(klp_unregister_patch(&patch)); + return ret; + } + return 0; +} + +static void livepatch_callbacks_demo_exit(void) +{ + WARN_ON(klp_unregister_patch(&patch)); +} + +module_init(livepatch_callbacks_demo_init); +module_exit(livepatch_callbacks_demo_exit); +MODULE_LICENSE("GPL"); +MODULE_INFO(livepatch, "Y"); diff --git a/samples/livepatch/livepatch-callbacks-mod.c b/samples/livepatch/livepatch-callbacks-mod.c new file mode 100644 index 000000000000..e610ce29ba44 --- /dev/null +++ b/samples/livepatch/livepatch-callbacks-mod.c @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2017 Joe Lawrence + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +/* + * livepatch-callbacks-mod.c - (un)patching callbacks demo support module + * + * + * Purpose + * ------- + * + * Simple module to demonstrate livepatch (un)patching callbacks. + * + * + * Usage + * ----- + * + * This module is not intended to be standalone. See the "Usage" + * section of livepatch-callbacks-demo.c. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include + +static int livepatch_callbacks_mod_init(void) +{ + pr_info("%s\n", __func__); + return 0; +} + +static void livepatch_callbacks_mod_exit(void) +{ + pr_info("%s\n", __func__); +} + +module_init(livepatch_callbacks_mod_init); +module_exit(livepatch_callbacks_mod_exit); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From bea173e5acd73d536dd234b34328cd52c1cadaab Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 6 Oct 2017 13:51:32 +0200 Subject: dt-bindings: irqchip: renesas-irqc: Document R-Car M3-W, V3M, D3 support Document support for the Interrupt Controller for Externel Devices (INTC-EX) in the Renesas M3-W (r8a7796), V3M (r8a77970), and D3 (r8a77995) SoCs. No driver update is needed. Reviewed-by: Simon Horman Signed-off-by: Geert Uytterhoeven Signed-off-by: Marc Zyngier --- .../devicetree/bindings/interrupt-controller/renesas,irqc.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt index e3f052d8c11a..33c9a10fdc91 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt @@ -13,6 +13,9 @@ Required properties: - "renesas,irqc-r8a7793" (R-Car M2-N) - "renesas,irqc-r8a7794" (R-Car E2) - "renesas,intc-ex-r8a7795" (R-Car H3) + - "renesas,intc-ex-r8a7796" (R-Car M3-W) + - "renesas,intc-ex-r8a77970" (R-Car V3M) + - "renesas,intc-ex-r8a77995" (R-Car D3) - #interrupt-cells: has to be <2>: an interrupt index and flags, as defined in interrupts.txt in this directory - clocks: Must contain a reference to the functional clock. -- cgit v1.2.3 From c0ca7262088ebab67452a39f27979d3faa4762f0 Mon Sep 17 00:00:00 2001 From: Doug Berger Date: Mon, 18 Sep 2017 18:00:00 -0700 Subject: irqchip/brcmstb-l2: Add support for the BCM7271 L2 controller Add the initialization of the generic irq chip for the BCM7271 L2 interrupt controller. This controller only supports level interrupts and uses the "brcm,bcm7271-l2-intc" compatibility string. Acked-by: Rob Herring Reviewed-by: Florian Fainelli Signed-off-by: Doug Berger Signed-off-by: Marc Zyngier --- .../bindings/interrupt-controller/brcm,l2-intc.txt | 3 +- drivers/irqchip/irq-brcmstb-l2.c | 86 ++++++++++++++++------ 2 files changed, 66 insertions(+), 23 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt index 448273a30a11..36df06c5c567 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt @@ -2,7 +2,8 @@ Broadcom Generic Level 2 Interrupt Controller Required properties: -- compatible: should be "brcm,l2-intc" +- compatible: should be "brcm,l2-intc" for latched interrupt controllers + should be "brcm,bcm7271-l2-intc" for level interrupt controllers - reg: specifies the base physical address and size of the registers - interrupt-controller: identifies the node as an interrupt controller - #interrupt-cells: specifies the number of cells needed to encode an diff --git a/drivers/irqchip/irq-brcmstb-l2.c b/drivers/irqchip/irq-brcmstb-l2.c index 8d54cd7a090d..691d20eb0bec 100644 --- a/drivers/irqchip/irq-brcmstb-l2.c +++ b/drivers/irqchip/irq-brcmstb-l2.c @@ -31,13 +31,34 @@ #include #include -/* Register offsets in the L2 interrupt controller */ -#define CPU_STATUS 0x00 -#define CPU_SET 0x04 -#define CPU_CLEAR 0x08 -#define CPU_MASK_STATUS 0x0c -#define CPU_MASK_SET 0x10 -#define CPU_MASK_CLEAR 0x14 +struct brcmstb_intc_init_params { + irq_flow_handler_t handler; + int cpu_status; + int cpu_clear; + int cpu_mask_status; + int cpu_mask_set; + int cpu_mask_clear; +}; + +/* Register offsets in the L2 latched interrupt controller */ +static const struct brcmstb_intc_init_params l2_edge_intc_init = { + .handler = handle_edge_irq, + .cpu_status = 0x00, + .cpu_clear = 0x08, + .cpu_mask_status = 0x0c, + .cpu_mask_set = 0x10, + .cpu_mask_clear = 0x14 +}; + +/* Register offsets in the L2 level interrupt controller */ +static const struct brcmstb_intc_init_params l2_lvl_intc_init = { + .handler = handle_level_irq, + .cpu_status = 0x00, + .cpu_clear = -1, /* Register not present */ + .cpu_mask_status = 0x04, + .cpu_mask_set = 0x08, + .cpu_mask_clear = 0x0C +}; /* L2 intc private data structure */ struct brcmstb_l2_intc_data { @@ -128,7 +149,7 @@ static void brcmstb_l2_intc_resume(struct irq_data *d) struct brcmstb_l2_intc_data *b = gc->private; irq_gc_lock(gc); - if (ct->chip.irq_ack != irq_gc_noop) { + if (ct->chip.irq_ack) { /* Clear unmasked non-wakeup interrupts */ irq_reg_writel(gc, ~b->saved_mask & ~gc->wake_active, ct->regs.ack); @@ -141,7 +162,9 @@ static void brcmstb_l2_intc_resume(struct irq_data *d) } static int __init brcmstb_l2_intc_of_init(struct device_node *np, - struct device_node *parent) + struct device_node *parent, + const struct brcmstb_intc_init_params + *init_params) { unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN; struct brcmstb_l2_intc_data *data; @@ -163,12 +186,12 @@ static int __init brcmstb_l2_intc_of_init(struct device_node *np, } /* Disable all interrupts by default */ - writel(0xffffffff, base + CPU_MASK_SET); + writel(0xffffffff, base + init_params->cpu_mask_set); /* Wakeup interrupts may be retained from S5 (cold boot) */ data->can_wake = of_property_read_bool(np, "brcm,irq-can-wake"); - if (!data->can_wake) - writel(0xffffffff, base + CPU_CLEAR); + if (!data->can_wake && (init_params->cpu_clear >= 0)) + writel(0xffffffff, base + init_params->cpu_clear); parent_irq = irq_of_parse_and_map(np, 0); if (!parent_irq) { @@ -193,7 +216,7 @@ static int __init brcmstb_l2_intc_of_init(struct device_node *np, /* Allocate a single Generic IRQ chip for this node */ ret = irq_alloc_domain_generic_chips(data->domain, 32, 1, - np->full_name, handle_edge_irq, clr, 0, flags); + np->full_name, init_params->handler, clr, 0, flags); if (ret) { pr_err("failed to allocate generic irq chip\n"); goto out_free_domain; @@ -206,21 +229,26 @@ static int __init brcmstb_l2_intc_of_init(struct device_node *np, data->gc = irq_get_domain_generic_chip(data->domain, 0); data->gc->reg_base = base; data->gc->private = data; - data->status_offset = CPU_STATUS; - data->mask_offset = CPU_MASK_STATUS; + data->status_offset = init_params->cpu_status; + data->mask_offset = init_params->cpu_mask_status; ct = data->gc->chip_types; - ct->chip.irq_ack = irq_gc_ack_set_bit; - ct->regs.ack = CPU_CLEAR; + if (init_params->cpu_clear >= 0) { + ct->regs.ack = init_params->cpu_clear; + ct->chip.irq_ack = irq_gc_ack_set_bit; + ct->chip.irq_mask_ack = brcmstb_l2_mask_and_ack; + } else { + /* No Ack - but still slightly more efficient to define this */ + ct->chip.irq_mask_ack = irq_gc_mask_disable_reg; + } ct->chip.irq_mask = irq_gc_mask_disable_reg; - ct->chip.irq_mask_ack = brcmstb_l2_mask_and_ack; - ct->regs.disable = CPU_MASK_SET; - ct->regs.mask = CPU_MASK_STATUS; + ct->regs.disable = init_params->cpu_mask_set; + ct->regs.mask = init_params->cpu_mask_status; ct->chip.irq_unmask = irq_gc_unmask_enable_reg; - ct->regs.enable = CPU_MASK_CLEAR; + ct->regs.enable = init_params->cpu_mask_clear; ct->chip.irq_suspend = brcmstb_l2_intc_suspend; ct->chip.irq_resume = brcmstb_l2_intc_resume; @@ -247,4 +275,18 @@ out_free: kfree(data); return ret; } -IRQCHIP_DECLARE(brcmstb_l2_intc, "brcm,l2-intc", brcmstb_l2_intc_of_init); + +int __init brcmstb_l2_edge_intc_of_init(struct device_node *np, + struct device_node *parent) +{ + return brcmstb_l2_intc_of_init(np, parent, &l2_edge_intc_init); +} +IRQCHIP_DECLARE(brcmstb_l2_intc, "brcm,l2-intc", brcmstb_l2_edge_intc_of_init); + +int __init brcmstb_l2_lvl_intc_of_init(struct device_node *np, + struct device_node *parent) +{ + return brcmstb_l2_intc_of_init(np, parent, &l2_lvl_intc_init); +} +IRQCHIP_DECLARE(bcm7271_l2_intc, "brcm,bcm7271-l2-intc", + brcmstb_l2_lvl_intc_of_init); -- cgit v1.2.3 From 1000cec2f02263e081e7ad559da5e03329aab58a Mon Sep 17 00:00:00 2001 From: Yixun Lan Date: Sat, 14 Oct 2017 07:13:12 +0800 Subject: dt-bindings: arm: amlogic: Add Meson AXG binding MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Introduce new bindings for the Meson AXG SoC which now have different memory layout. Signed-off-by: Yixun Lan Reviewed-by: Andreas Färber Reviewed-by: Neil Armstrong Reviewed-by: Kevin Hilman Acked-by: Rob Herring Signed-off-by: Kevin Hilman --- Documentation/devicetree/bindings/arm/amlogic.txt | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/amlogic.txt b/Documentation/devicetree/bindings/arm/amlogic.txt index da379880abb6..f747f47922c5 100644 --- a/Documentation/devicetree/bindings/arm/amlogic.txt +++ b/Documentation/devicetree/bindings/arm/amlogic.txt @@ -41,6 +41,10 @@ Boards with the Amlogic Meson GXM S912 SoC shall have the following properties: Required root node property: compatible: "amlogic,s912", "amlogic,meson-gxm"; +Boards with the Amlogic Meson AXG A113D SoC shall have the following properties: + Required root node property: + compatible: "amlogic,a113d", "amlogic,meson-axg"; + Board compatible values (alphabetically, grouped by SoC): - "geniatech,atv1200" (Meson6) @@ -76,6 +80,8 @@ Board compatible values (alphabetically, grouped by SoC): - "nexbox,a1" (Meson gxm s912) - "tronsmart,vega-s96" (Meson gxm s912) + - "amlogic,s400" (Meson axg a113d) + Amlogic Meson Firmware registers Interface ------------------------------------------ -- cgit v1.2.3 From 558b01654d92332d3b7b17bf773cdce8ce16ef46 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Tue, 17 Oct 2017 17:55:56 +0100 Subject: irqchip/gic-v3: Add workaround for Synquacer pre-ITS The Socionext Synquacer SoC's implementation of GICv3 has a so-called 'pre-ITS', which maps 32-bit writes targeted at a separate window of size '4 << device_id_bits' onto writes to GITS_TRANSLATER with device ID taken from bits [device_id_bits + 1:2] of the window offset. Writes that target GITS_TRANSLATER directly are reported as originating from device ID #0. So add a workaround for this. Given that this breaks isolation, clear the IRQ_DOMAIN_FLAG_MSI_REMAP flag as well. Acked-by: Rob Herring Signed-off-by: Ard Biesheuvel Signed-off-by: Marc Zyngier --- .../bindings/interrupt-controller/arm,gic-v3.txt | 4 ++ arch/arm64/Kconfig | 8 +++ drivers/irqchip/irq-gic-v3-its.c | 72 +++++++++++++++++++++- 3 files changed, 82 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt index 4c29cdab0ea5..c3e6092f3add 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt @@ -75,6 +75,10 @@ These nodes must have the following properties: - reg: Specifies the base physical address and size of the ITS registers. +Optional: +- socionext,synquacer-pre-its: (u32, u32) tuple describing the untranslated + address and size of the pre-ITS window. + The main GIC node must contain the appropriate #address-cells, #size-cells and ranges properties for the reg property of all ITS nodes. diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 0df64a6a56d4..c4361dff2b74 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -539,6 +539,14 @@ config QCOM_QDF2400_ERRATUM_0065 If unsure, say Y. +config SOCIONEXT_SYNQUACER_PREITS + bool "Socionext Synquacer: Workaround for GICv3 pre-ITS" + default y + help + Socionext Synquacer SoCs implement a separate h/w block to generate + MSI doorbell writes with non-zero values for the device ID. + + If unsure, say Y. endmenu diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 4d432804c2bc..54ea4e26c7a9 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -83,6 +83,8 @@ struct its_baser { u32 psz; }; +struct its_device; + /* * The ITS structure - contains most of the infrastructure, with the * top-level MSI domain, the command queue, the collections, and the @@ -97,11 +99,15 @@ struct its_node { struct its_cmd_block *cmd_write; struct its_baser tables[GITS_BASER_NR_REGS]; struct its_collection *collections; + struct fwnode_handle *fwnode_handle; + u64 (*get_msi_base)(struct its_device *its_dev); struct list_head its_device_list; u64 flags; u32 ite_size; u32 device_ids; int numa_node; + unsigned int msi_domain_flags; + u32 pre_its_base; /* for Socionext Synquacer */ bool is_v4; }; @@ -1095,6 +1101,13 @@ static int its_set_affinity(struct irq_data *d, const struct cpumask *mask_val, return IRQ_SET_MASK_OK_DONE; } +static u64 its_irq_get_msi_base(struct its_device *its_dev) +{ + struct its_node *its = its_dev->its; + + return its->phys_base + GITS_TRANSLATER; +} + static void its_irq_compose_msi_msg(struct irq_data *d, struct msi_msg *msg) { struct its_device *its_dev = irq_data_get_irq_chip_data(d); @@ -1102,7 +1115,7 @@ static void its_irq_compose_msi_msg(struct irq_data *d, struct msi_msg *msg) u64 addr; its = its_dev->its; - addr = its->phys_base + GITS_TRANSLATER; + addr = its->get_msi_base(its_dev); msg->address_lo = lower_32_bits(addr); msg->address_hi = upper_32_bits(addr); @@ -2760,6 +2773,45 @@ static bool __maybe_unused its_enable_quirk_qdf2400_e0065(void *data) return true; } +static u64 its_irq_get_msi_base_pre_its(struct its_device *its_dev) +{ + struct its_node *its = its_dev->its; + + /* + * The Socionext Synquacer SoC has a so-called 'pre-ITS', + * which maps 32-bit writes targeted at a separate window of + * size '4 << device_id_bits' onto writes to GITS_TRANSLATER + * with device ID taken from bits [device_id_bits + 1:2] of + * the window offset. + */ + return its->pre_its_base + (its_dev->device_id << 2); +} + +static bool __maybe_unused its_enable_quirk_socionext_synquacer(void *data) +{ + struct its_node *its = data; + u32 pre_its_window[2]; + u32 ids; + + if (!fwnode_property_read_u32_array(its->fwnode_handle, + "socionext,synquacer-pre-its", + pre_its_window, + ARRAY_SIZE(pre_its_window))) { + + its->pre_its_base = pre_its_window[0]; + its->get_msi_base = its_irq_get_msi_base_pre_its; + + ids = ilog2(pre_its_window[1]) - 2; + if (its->device_ids > ids) + its->device_ids = ids; + + /* the pre-ITS breaks isolation, so disable MSI remapping */ + its->msi_domain_flags &= ~IRQ_DOMAIN_FLAG_MSI_REMAP; + return true; + } + return false; +} + static const struct gic_quirk its_quirks[] = { #ifdef CONFIG_CAVIUM_ERRATUM_22375 { @@ -2784,6 +2836,19 @@ static const struct gic_quirk its_quirks[] = { .mask = 0xffffffff, .init = its_enable_quirk_qdf2400_e0065, }, +#endif +#ifdef CONFIG_SOCIONEXT_SYNQUACER_PREITS + { + /* + * The Socionext Synquacer SoC incorporates ARM's own GIC-500 + * implementation, but with a 'pre-ITS' added that requires + * special handling in software. + */ + .desc = "ITS: Socionext Synquacer pre-ITS", + .iidr = 0x0001143b, + .mask = 0xffffffff, + .init = its_enable_quirk_socionext_synquacer, + }, #endif { } @@ -2813,7 +2878,7 @@ static int its_init_domain(struct fwnode_handle *handle, struct its_node *its) inner_domain->parent = its_parent; irq_domain_update_bus_token(inner_domain, DOMAIN_BUS_NEXUS); - inner_domain->flags |= IRQ_DOMAIN_FLAG_MSI_REMAP; + inner_domain->flags |= its->msi_domain_flags; info->ops = &its_msi_domain_ops; info->data = its; inner_domain->host_data = info; @@ -2967,6 +3032,9 @@ static int __init its_probe_one(struct resource *res, goto out_free_its; } its->cmd_write = its->cmd_base; + its->fwnode_handle = handle; + its->get_msi_base = its_irq_get_msi_base; + its->msi_domain_flags = IRQ_DOMAIN_FLAG_MSI_REMAP; its_enable_quirks(its); -- cgit v1.2.3 From 5c9a882e940dde2f3e80eb3c7635a3307be511b6 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 28 Jul 2017 21:20:37 +0100 Subject: irqchip/gic-v3-its: Workaround HiSilicon Hip07 redistributor addressing The ITSes on the Hip07 (as present in the Huawei D05) are broken when it comes to addressing the redistributors, and need to be explicitely told to address the VLPI page instead of the redistributor base address. So let's add yet another quirk, fixing up the target address in the command stream. Signed-off-by: Marc Zyngier --- Documentation/arm64/silicon-errata.txt | 1 + arch/arm64/Kconfig | 11 +++++++++++ drivers/irqchip/irq-gic-v3-its.c | 30 ++++++++++++++++++++++++++++-- 3 files changed, 40 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/arm64/silicon-errata.txt b/Documentation/arm64/silicon-errata.txt index 66e8ce14d23d..304bf22bb83c 100644 --- a/Documentation/arm64/silicon-errata.txt +++ b/Documentation/arm64/silicon-errata.txt @@ -70,6 +70,7 @@ stable kernels. | | | | | | Hisilicon | Hip0{5,6,7} | #161010101 | HISILICON_ERRATUM_161010101 | | Hisilicon | Hip0{6,7} | #161010701 | N/A | +| Hisilicon | Hip07 | #161600802 | HISILICON_ERRATUM_161600802 | | | | | | | Qualcomm Tech. | Falkor v1 | E1003 | QCOM_FALKOR_ERRATUM_1003 | | Qualcomm Tech. | Falkor v1 | E1009 | QCOM_FALKOR_ERRATUM_1009 | diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index c4361dff2b74..22455e4168c1 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -539,6 +539,7 @@ config QCOM_QDF2400_ERRATUM_0065 If unsure, say Y. + config SOCIONEXT_SYNQUACER_PREITS bool "Socionext Synquacer: Workaround for GICv3 pre-ITS" default y @@ -546,6 +547,16 @@ config SOCIONEXT_SYNQUACER_PREITS Socionext Synquacer SoCs implement a separate h/w block to generate MSI doorbell writes with non-zero values for the device ID. + If unsure, say Y. + +config HISILICON_ERRATUM_161600802 + bool "Hip07 161600802: Erroneous redistributor VLPI base" + default y + help + The HiSilicon Hip07 SoC usees the wrong redistributor base + when issued ITS commands such as VMOVP and VMAPP, and requires + a 128kB offset to be applied to the target address in this commands. + If unsure, say Y. endmenu diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 4aedbdc62aa0..6cc57dc142df 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -109,6 +109,7 @@ struct its_node { unsigned int msi_domain_flags; u32 pre_its_base; /* for Socionext Synquacer */ bool is_v4; + int vlpi_redist_offset; }; #define ITS_ITT_ALIGN SZ_256 @@ -558,13 +559,15 @@ static struct its_vpe *its_build_vmapp_cmd(struct its_node *its, struct its_cmd_desc *desc) { unsigned long vpt_addr; + u64 target; vpt_addr = virt_to_phys(page_address(desc->its_vmapp_cmd.vpe->vpt_page)); + target = desc->its_vmapp_cmd.col->target_address + its->vlpi_redist_offset; its_encode_cmd(cmd, GITS_CMD_VMAPP); its_encode_vpeid(cmd, desc->its_vmapp_cmd.vpe->vpe_id); its_encode_valid(cmd, desc->its_vmapp_cmd.valid); - its_encode_target(cmd, desc->its_vmapp_cmd.col->target_address); + its_encode_target(cmd, target); its_encode_vpt_addr(cmd, vpt_addr); its_encode_vpt_size(cmd, LPI_NRBITS - 1); @@ -623,11 +626,14 @@ static struct its_vpe *its_build_vmovp_cmd(struct its_node *its, struct its_cmd_block *cmd, struct its_cmd_desc *desc) { + u64 target; + + target = desc->its_vmovp_cmd.col->target_address + its->vlpi_redist_offset; its_encode_cmd(cmd, GITS_CMD_VMOVP); its_encode_seq_num(cmd, desc->its_vmovp_cmd.seq_num); its_encode_its_list(cmd, desc->its_vmovp_cmd.its_list); its_encode_vpeid(cmd, desc->its_vmovp_cmd.vpe->vpe_id); - its_encode_target(cmd, desc->its_vmovp_cmd.col->target_address); + its_encode_target(cmd, target); its_fixup_cmd(cmd); @@ -2834,6 +2840,18 @@ static bool __maybe_unused its_enable_quirk_socionext_synquacer(void *data) return false; } +static bool __maybe_unused its_enable_quirk_hip07_161600802(void *data) +{ + struct its_node *its = data; + + /* + * Hip07 insists on using the wrong address for the VLPI + * page. Trick it into doing the right thing... + */ + its->vlpi_redist_offset = SZ_128K; + return true; +} + static const struct gic_quirk its_quirks[] = { #ifdef CONFIG_CAVIUM_ERRATUM_22375 { @@ -2871,6 +2889,14 @@ static const struct gic_quirk its_quirks[] = { .mask = 0xffffffff, .init = its_enable_quirk_socionext_synquacer, }, +#endif +#ifdef CONFIG_HISILICON_ERRATUM_161600802 + { + .desc = "ITS: Hip07 erratum 161600802", + .iidr = 0x00000004, + .mask = 0xffffffff, + .init = its_enable_quirk_hip07_161600802, + }, #endif { } -- cgit v1.2.3 From df48d3b5ef276998e399846db12c241e6f9d318c Mon Sep 17 00:00:00 2001 From: Jerome Brunet Date: Mon, 18 Sep 2017 15:46:09 +0200 Subject: dt-bindings: interrupt-controller: Add DT binding for meson GPIO interrupt controller This commit adds the device tree bindings description for Amlogic's GPIO interrupt controller available on the meson8b, gxbb and gxl SoC families Cc: Heiner Kallweit Acked-by: Rob Herring Signed-off-by: Jerome Brunet Signed-off-by: Marc Zyngier --- .../amlogic,meson-gpio-intc.txt | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt new file mode 100644 index 000000000000..633e21ce4b17 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt @@ -0,0 +1,35 @@ +Amlogic meson GPIO interrupt controller + +Meson SoCs contains an interrupt controller which is able to watch the SoC +pads and generate an interrupt on edge or level. The controller is essentially +a 256 pads to 8 GIC interrupt multiplexer, with a filter block to select edge +or level and polarity. It does not expose all 256 mux inputs because the +documentation shows that the upper part is not mapped to any pad. The actual +number of interrupt exposed depends on the SoC. + +Required properties: + +- compatible : must have "amlogic,meson8-gpio-intc” and either + “amlogic,meson8b-gpio-intc” for meson8b SoCs (S805) or + “amlogic,meson-gxbb-gpio-intc” for GXBB SoCs (S905) or + “amlogic,meson-gxl-gpio-intc” for GXL SoCs (S905X, S912) +- interrupt-parent : a phandle to the GIC the interrupts are routed to. + Usually this is provided at the root level of the device tree as it is + common to most of the SoC. +- reg : Specifies base physical address and size of the registers. +- interrupt-controller : Identifies the node as an interrupt controller. +- #interrupt-cells : Specifies the number of cells needed to encode an + interrupt source. The value must be 2. +- meson,channel-interrupts: Array with the 8 upstream hwirq numbers. These + are the hwirqs used on the parent interrupt controller. + +Example: + +gpio_interrupt: interrupt-controller@9880 { + compatible = "amlogic,meson-gxbb-gpio-intc", + "amlogic,meson-gpio-intc"; + reg = <0x0 0x9880 0x0 0x10>; + interrupt-controller; + #interrupt-cells = <2>; + meson,channel-interrupts = <64 65 66 67 68 69 70 71>; +}; -- cgit v1.2.3 From 3e09b155d58e44e33a699650128f8c6c833cb320 Mon Sep 17 00:00:00 2001 From: Mikko Perttunen Date: Mon, 24 Jul 2017 19:29:15 +0300 Subject: dt-bindings: Add bindings for nvidia,tegra186-bpmp-thermal In Tegra186, the BPMP (Boot and Power Management Processor) implements an interface that is used to read system temperatures, including CPU cluster and GPU temperatures. This binding describes the thermal sensor that is exposed by BPMP. Signed-off-by: Mikko Perttunen Acked-by: Rob Herring Signed-off-by: Thierry Reding --- .../thermal/nvidia,tegra186-bpmp-thermal.txt | 32 ++++++++++++++++++++++ .../dt-bindings/thermal/tegra186-bpmp-thermal.h | 14 ++++++++++ 2 files changed, 46 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/nvidia,tegra186-bpmp-thermal.txt create mode 100644 include/dt-bindings/thermal/tegra186-bpmp-thermal.h (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/thermal/nvidia,tegra186-bpmp-thermal.txt b/Documentation/devicetree/bindings/thermal/nvidia,tegra186-bpmp-thermal.txt new file mode 100644 index 000000000000..276387dd6815 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/nvidia,tegra186-bpmp-thermal.txt @@ -0,0 +1,32 @@ +NVIDIA Tegra186 BPMP thermal sensor + +In Tegra186, the BPMP (Boot and Power Management Processor) implements an +interface that is used to read system temperatures, including CPU cluster +and GPU temperatures. This binding describes the thermal sensor that is +exposed by BPMP. + +The BPMP thermal node must be located directly inside the main BPMP node. See +../firmware/nvidia,tegra186-bpmp.txt for details of the BPMP binding. + +This node represents a thermal sensor. See thermal.txt for details of the +core thermal binding. + +Required properties: +- compatible: + Array of strings. + One of: + - "nvidia,tegra186-bpmp-thermal". +- #thermal-sensor-cells: Cell for sensor index. + Single-cell integer. + Must be <1>. + +Example: + +bpmp { + ... + + bpmp_thermal: thermal { + compatible = "nvidia,tegra186-bpmp-thermal"; + #thermal-sensor-cells = <1>; + }; +}; diff --git a/include/dt-bindings/thermal/tegra186-bpmp-thermal.h b/include/dt-bindings/thermal/tegra186-bpmp-thermal.h new file mode 100644 index 000000000000..a96b8fa31aab --- /dev/null +++ b/include/dt-bindings/thermal/tegra186-bpmp-thermal.h @@ -0,0 +1,14 @@ +/* + * This header provides constants for binding nvidia,tegra186-bpmp-thermal. + */ + +#ifndef _DT_BINDINGS_THERMAL_TEGRA186_BPMP_THERMAL_H +#define _DT_BINDINGS_THERMAL_TEGRA186_BPMP_THERMAL_H + +#define TEGRA186_BPMP_THERMAL_ZONE_CPU 2 +#define TEGRA186_BPMP_THERMAL_ZONE_GPU 3 +#define TEGRA186_BPMP_THERMAL_ZONE_AUX 4 +#define TEGRA186_BPMP_THERMAL_ZONE_PLLX 5 +#define TEGRA186_BPMP_THERMAL_ZONE_AO 6 + +#endif -- cgit v1.2.3 From 3125b5b2a3b4400a2925b27ce1cede23f26b98dc Mon Sep 17 00:00:00 2001 From: Shaokun Zhang Date: Thu, 19 Oct 2017 19:05:16 +0800 Subject: Documentation: perf: hisi: Documentation for HiSilicon SoC PMU driver This patch adds documentation for the uncore PMUs on HiSilicon SoC. Acked-by: Mark Rutland Reviewed-by: Jonathan Cameron Signed-off-by: Shaokun Zhang Signed-off-by: Anurup M Signed-off-by: Will Deacon --- Documentation/perf/hisi-pmu.txt | 53 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/perf/hisi-pmu.txt (limited to 'Documentation') diff --git a/Documentation/perf/hisi-pmu.txt b/Documentation/perf/hisi-pmu.txt new file mode 100644 index 000000000000..267a028b2741 --- /dev/null +++ b/Documentation/perf/hisi-pmu.txt @@ -0,0 +1,53 @@ +HiSilicon SoC uncore Performance Monitoring Unit (PMU) +====================================================== +The HiSilicon SoC chip includes various independent system device PMUs +such as L3 cache (L3C), Hydra Home Agent (HHA) and DDRC. These PMUs are +independent and have hardware logic to gather statistics and performance +information. + +The HiSilicon SoC encapsulates multiple CPU and IO dies. Each CPU cluster +(CCL) is made up of 4 cpu cores sharing one L3 cache; each CPU die is +called Super CPU cluster (SCCL) and is made up of 6 CCLs. Each SCCL has +two HHAs (0 - 1) and four DDRCs (0 - 3), respectively. + +HiSilicon SoC uncore PMU driver +--------------------------------------- +Each device PMU has separate registers for event counting, control and +interrupt, and the PMU driver shall register perf PMU drivers like L3C, +HHA and DDRC etc. The available events and configuration options shall +be described in the sysfs, see : +/sys/devices/hisi_sccl{X}_/, or +/sys/bus/event_source/devices/hisi_sccl{X}_. +The "perf list" command shall list the available events from sysfs. + +Each L3C, HHA and DDRC is registered as a separate PMU with perf. The PMU +name will appear in event listing as hisi_sccl_module. +where "sccl-id" is the identifier of the SCCL and "index-id" is the index of +module. +e.g. hisi_sccl3_l3c0/rd_hit_cpipe is READ_HIT_CPIPE event of L3C index #0 in +SCCL ID #3. +e.g. hisi_sccl1_hha0/rx_operations is RX_OPERATIONS event of HHA index #0 in +SCCL ID #1. + +The driver also provides a "cpumask" sysfs attribute, which shows the CPU core +ID used to count the uncore PMU event. + +Example usage of perf: +$# perf list +hisi_sccl3_l3c0/rd_hit_cpipe/ [kernel PMU event] +------------------------------------------ +hisi_sccl3_l3c0/wr_hit_cpipe/ [kernel PMU event] +------------------------------------------ +hisi_sccl1_l3c0/rd_hit_cpipe/ [kernel PMU event] +------------------------------------------ +hisi_sccl1_l3c0/wr_hit_cpipe/ [kernel PMU event] +------------------------------------------ + +$# perf stat -a -e hisi_sccl3_l3c0/rd_hit_cpipe/ sleep 5 +$# perf stat -a -e hisi_sccl3_l3c0/config=0x02/ sleep 5 + +The current driver does not support sampling. So "perf record" is unsupported. +Also attach to a task is unsupported as the events are all uncore. + +Note: Please contact the maintainer for a complete list of events supported for +the PMU devices in the SoC and its information if needed. -- cgit v1.2.3 From 4845688d6a86d411a7622148e4f39d29b51e92cd Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sun, 15 Oct 2017 11:24:08 +0200 Subject: docs: dev-tools: correct Coccinelle version number There is no Coccinelle version 1.2. 1.0.2 must be what was intended. Signed-off-by: Julia Lawall Signed-off-by: Jonathan Corbet --- Documentation/dev-tools/coccinelle.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/dev-tools/coccinelle.rst b/Documentation/dev-tools/coccinelle.rst index 4a64b4c69d3f..37e474ff6911 100644 --- a/Documentation/dev-tools/coccinelle.rst +++ b/Documentation/dev-tools/coccinelle.rst @@ -209,7 +209,7 @@ err.log will now have the profiling information, while stdout will provide some progress information as Coccinelle moves forward with work. -DEBUG_FILE support is only supported when using coccinelle >= 1.2. +DEBUG_FILE support is only supported when using coccinelle >= 1.0.2. .cocciconfig support -------------------- -- cgit v1.2.3 From 796cacdda786cb5466277ae51465a798f3c665b4 Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Thu, 12 Oct 2017 15:23:36 -0500 Subject: Documentation: fix locking rt-mutex doc refs Signed-off-by: Tom Saeger Signed-off-by: Jonathan Corbet --- Documentation/locking/rt-mutex-design.txt | 2 +- Documentation/pi-futex.txt | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/locking/rt-mutex-design.txt b/Documentation/locking/rt-mutex-design.txt index 6c6e8c2410de..3d7b865539cc 100644 --- a/Documentation/locking/rt-mutex-design.txt +++ b/Documentation/locking/rt-mutex-design.txt @@ -8,7 +8,7 @@ RT-mutex implementation design This document tries to describe the design of the rtmutex.c implementation. It doesn't describe the reasons why rtmutex.c exists. For that please see -Documentation/rt-mutex.txt. Although this document does explain problems +Documentation/locking/rt-mutex.txt. Although this document does explain problems that happen without this code, but that is in the concept to understand what the code actually is doing. diff --git a/Documentation/pi-futex.txt b/Documentation/pi-futex.txt index aafddbee7377..b154f6c0c36e 100644 --- a/Documentation/pi-futex.txt +++ b/Documentation/pi-futex.txt @@ -119,4 +119,4 @@ properties of futexes, and all four combinations are possible: futex, robust-futex, PI-futex, robust+PI-futex. More details about priority inheritance can be found in -Documentation/rt-mutex.txt. +Documentation/locking/rt-mutex.txt. -- cgit v1.2.3 From f66d9066c09fd65ed6fb418a422b17dcf9bdcd94 Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Thu, 12 Oct 2017 15:23:42 -0500 Subject: Documentation: fix ref to sphinx/kerneldoc.py Signed-off-by: Tom Saeger Signed-off-by: Jonathan Corbet --- Documentation/doc-guide/kernel-doc.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/doc-guide/kernel-doc.rst b/Documentation/doc-guide/kernel-doc.rst index b24854b5d6be..0268335414ce 100644 --- a/Documentation/doc-guide/kernel-doc.rst +++ b/Documentation/doc-guide/kernel-doc.rst @@ -65,7 +65,7 @@ Without options, the kernel-doc directive includes all documentation comments from the source file. The kernel-doc extension is included in the kernel source tree, at -``Documentation/sphinx/kernel-doc.py``. Internally, it uses the +``Documentation/sphinx/kerneldoc.py``. Internally, it uses the ``scripts/kernel-doc`` script to extract the documentation comments from the source. -- cgit v1.2.3 From d354a6f150d873440975263530a2e42121d50a51 Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Thu, 12 Oct 2017 15:23:48 -0500 Subject: Documentation: fix ref to workqueue content Signed-off-by: Tom Saeger Signed-off-by: Jonathan Corbet --- .../RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html b/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html index e5d0bbd0230b..7394f034be65 100644 --- a/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html +++ b/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html @@ -527,7 +527,7 @@ grace period also drove it to completion. This straightforward approach had the disadvantage of needing to account for POSIX signals sent to user tasks, so more recent implemementations use the Linux kernel's -workqueues. +workqueues.

The requesting task still does counter snapshotting and funnel-lock -- cgit v1.2.3 From 2c0c5c208bb8233d2d76327e3379375c01785c4d Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Thu, 12 Oct 2017 15:23:53 -0500 Subject: Documentation: fix ref to coccinelle content Signed-off-by: Tom Saeger Signed-off-by: Jonathan Corbet --- Documentation/process/4.Coding.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/process/4.Coding.rst b/Documentation/process/4.Coding.rst index 6df19943dd4d..26b106071364 100644 --- a/Documentation/process/4.Coding.rst +++ b/Documentation/process/4.Coding.rst @@ -307,7 +307,7 @@ variety of potential coding problems; it can also propose fixes for those problems. Quite a few "semantic patches" for the kernel have been packaged under the scripts/coccinelle directory; running "make coccicheck" will run through those semantic patches and report on any problems found. See -Documentation/coccinelle.txt for more information. +Documentation/dev-tools/coccinelle.rst for more information. Other kinds of portability errors are best found by compiling your code for other architectures. If you do not happen to have an S/390 system or a -- cgit v1.2.3 From bb93e01b13821852a41f01b124cc71e94f5d3811 Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Thu, 12 Oct 2017 15:23:59 -0500 Subject: Documentation: fix ref to trace stm content Signed-off-by: Tom Saeger Signed-off-by: Jonathan Corbet --- Documentation/trace/intel_th.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/trace/intel_th.txt b/Documentation/trace/intel_th.txt index f92070e7dde0..7a57165c2492 100644 --- a/Documentation/trace/intel_th.txt +++ b/Documentation/trace/intel_th.txt @@ -37,7 +37,7 @@ description is at Documentation/ABI/testing/sysfs-bus-intel_th-devices-gth. STH registers an stm class device, through which it provides interface to userspace and kernelspace software trace sources. See -Documentation/tracing/stm.txt for more information on that. +Documentation/trace/stm.txt for more information on that. MSU can be configured to collect trace data into a system memory buffer, which can later on be read from its device nodes via read() or -- cgit v1.2.3 From 4493c1f01b139192e2490457577dccff227987b7 Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Thu, 12 Oct 2017 15:24:05 -0500 Subject: Documentation: fix ref to power basic-pm-debugging Signed-off-by: Tom Saeger Acked-by: Rafael J. Wysocki Signed-off-by: Jonathan Corbet --- Documentation/power/interface.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/power/interface.txt b/Documentation/power/interface.txt index 7dc75f48e8bd..27df7f98668a 100644 --- a/Documentation/power/interface.txt +++ b/Documentation/power/interface.txt @@ -43,7 +43,7 @@ The currently selected option is printed in square brackets. The 'platform' option is only available if the platform provides a special mechanism to put the system to sleep after creating a hibernation image (ACPI does that, for example). The 'suspend' option is available if Suspend-to-RAM -is supported. Refer to Documentation/power/basic_pm_debugging.txt for the +is supported. Refer to Documentation/power/basic-pm-debugging.txt for the description of the 'test_resume' option. To select an option, write the string representing it to /sys/power/disk. -- cgit v1.2.3 From 718d50ec782caad13e0cc78fa6a76ff2226f3dd3 Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Thu, 12 Oct 2017 15:24:10 -0500 Subject: Documentation: fix selftests related file refs Make refs to selftests files valid including: - watchdog-test.c - dnotify_test.c Signed-off-by: Tom Saeger Signed-off-by: Jonathan Corbet --- Documentation/filesystems/dnotify.txt | 2 +- Documentation/watchdog/hpwdt.txt | 2 +- Documentation/watchdog/pcwd-watchdog.txt | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/dnotify.txt b/Documentation/filesystems/dnotify.txt index 6baf88f46859..15156883d321 100644 --- a/Documentation/filesystems/dnotify.txt +++ b/Documentation/filesystems/dnotify.txt @@ -62,7 +62,7 @@ disabled, fcntl(fd, F_NOTIFY, ...) will return -EINVAL. Example ------- -See Documentation/filesystems/dnotify_test.c for an example. +See tools/testing/selftests/filesystems/dnotify_test.c for an example. NOTE ---- diff --git a/Documentation/watchdog/hpwdt.txt b/Documentation/watchdog/hpwdt.txt index 7a9f635d0258..6d866c537127 100644 --- a/Documentation/watchdog/hpwdt.txt +++ b/Documentation/watchdog/hpwdt.txt @@ -15,7 +15,7 @@ Last reviewed: 05/20/2016 Watchdog functionality is enabled like any other common watchdog driver. That is, an application needs to be started that kicks off the watchdog timer. A - basic application exists in the Documentation/watchdog/src directory called + basic application exists in tools/testing/selftests/watchdog/ named watchdog-test.c. Simply compile the C file and kick it off. If the system gets into a bad state and hangs, the HPE ProLiant iLO timer register will not be updated in a timely fashion and a hardware system reset (also known as diff --git a/Documentation/watchdog/pcwd-watchdog.txt b/Documentation/watchdog/pcwd-watchdog.txt index 4f68052395c0..b8e60a441a43 100644 --- a/Documentation/watchdog/pcwd-watchdog.txt +++ b/Documentation/watchdog/pcwd-watchdog.txt @@ -25,7 +25,7 @@ Last reviewed: 10/05/2007 If you want to write a program to be compatible with the PC Watchdog driver, simply use of modify the watchdog test program: - Documentation/watchdog/src/watchdog-test.c + tools/testing/selftests/watchdog/watchdog-test.c Other IOCTL functions include: -- cgit v1.2.3 From 7d7363e403ce959941f80684cc5f33e747afff17 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 16 Oct 2017 16:32:51 -0700 Subject: documentation: kernel-api: add more info on bitmap functions There are some good comments about bitmap operations in lib/bitmap.c and include/linux/bitmap.h, so format them for document generation and pull them into core-api/kernel-api.rst. I converted the "tables" of functions from using tabs to using spaces so that they are more readable in the source file and in the generated output. Signed-off-by: Randy Dunlap Signed-off-by: Jonathan Corbet --- Documentation/core-api/kernel-api.rst | 12 ++++ include/linux/bitmap.h | 105 ++++++++++++++++++---------------- lib/bitmap.c | 4 +- 3 files changed, 72 insertions(+), 49 deletions(-) (limited to 'Documentation') diff --git a/Documentation/core-api/kernel-api.rst b/Documentation/core-api/kernel-api.rst index 9c6902ba6e67..81754add8a49 100644 --- a/Documentation/core-api/kernel-api.rst +++ b/Documentation/core-api/kernel-api.rst @@ -53,6 +53,18 @@ The Linux kernel provides more basic utility functions. Bitmap Operations ----------------- +.. kernel-doc:: lib/bitmap.c + :doc: bitmap introduction + +.. kernel-doc:: include/linux/bitmap.h + :doc: declare bitmap + +.. kernel-doc:: include/linux/bitmap.h + :doc: bitmap overview + +.. kernel-doc:: include/linux/bitmap.h + :doc: bitmap bitops + .. kernel-doc:: lib/bitmap.c :export: diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 5c4178016b1e..d9974c7a0a61 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -21,65 +21,74 @@ * See lib/bitmap.c for more details. */ -/* +/** + * DOC: bitmap overview + * * The available bitmap operations and their rough meaning in the * case that the bitmap is a single unsigned long are thus: * * Note that nbits should be always a compile time evaluable constant. * Otherwise many inlines will generate horrible code. * - * bitmap_zero(dst, nbits) *dst = 0UL - * bitmap_fill(dst, nbits) *dst = ~0UL - * bitmap_copy(dst, src, nbits) *dst = *src - * bitmap_and(dst, src1, src2, nbits) *dst = *src1 & *src2 - * bitmap_or(dst, src1, src2, nbits) *dst = *src1 | *src2 - * bitmap_xor(dst, src1, src2, nbits) *dst = *src1 ^ *src2 - * bitmap_andnot(dst, src1, src2, nbits) *dst = *src1 & ~(*src2) - * bitmap_complement(dst, src, nbits) *dst = ~(*src) - * bitmap_equal(src1, src2, nbits) Are *src1 and *src2 equal? - * bitmap_intersects(src1, src2, nbits) Do *src1 and *src2 overlap? - * bitmap_subset(src1, src2, nbits) Is *src1 a subset of *src2? - * bitmap_empty(src, nbits) Are all bits zero in *src? - * bitmap_full(src, nbits) Are all bits set in *src? - * bitmap_weight(src, nbits) Hamming Weight: number set bits - * bitmap_set(dst, pos, nbits) Set specified bit area - * bitmap_clear(dst, pos, nbits) Clear specified bit area - * bitmap_find_next_zero_area(buf, len, pos, n, mask) Find bit free area - * bitmap_find_next_zero_area_off(buf, len, pos, n, mask) as above - * bitmap_shift_right(dst, src, n, nbits) *dst = *src >> n - * bitmap_shift_left(dst, src, n, nbits) *dst = *src << n - * bitmap_remap(dst, src, old, new, nbits) *dst = map(old, new)(src) - * bitmap_bitremap(oldbit, old, new, nbits) newbit = map(old, new)(oldbit) - * bitmap_onto(dst, orig, relmap, nbits) *dst = orig relative to relmap - * bitmap_fold(dst, orig, sz, nbits) dst bits = orig bits mod sz - * bitmap_parse(buf, buflen, dst, nbits) Parse bitmap dst from kernel buf - * bitmap_parse_user(ubuf, ulen, dst, nbits) Parse bitmap dst from user buf - * bitmap_parselist(buf, dst, nbits) Parse bitmap dst from kernel buf - * bitmap_parselist_user(buf, dst, nbits) Parse bitmap dst from user buf - * bitmap_find_free_region(bitmap, bits, order) Find and allocate bit region - * bitmap_release_region(bitmap, pos, order) Free specified bit region - * bitmap_allocate_region(bitmap, pos, order) Allocate specified bit region - * bitmap_from_u32array(dst, nbits, buf, nwords) *dst = *buf (nwords 32b words) - * bitmap_to_u32array(buf, nwords, src, nbits) *buf = *dst (nwords 32b words) + * :: + * + * bitmap_zero(dst, nbits) *dst = 0UL + * bitmap_fill(dst, nbits) *dst = ~0UL + * bitmap_copy(dst, src, nbits) *dst = *src + * bitmap_and(dst, src1, src2, nbits) *dst = *src1 & *src2 + * bitmap_or(dst, src1, src2, nbits) *dst = *src1 | *src2 + * bitmap_xor(dst, src1, src2, nbits) *dst = *src1 ^ *src2 + * bitmap_andnot(dst, src1, src2, nbits) *dst = *src1 & ~(*src2) + * bitmap_complement(dst, src, nbits) *dst = ~(*src) + * bitmap_equal(src1, src2, nbits) Are *src1 and *src2 equal? + * bitmap_intersects(src1, src2, nbits) Do *src1 and *src2 overlap? + * bitmap_subset(src1, src2, nbits) Is *src1 a subset of *src2? + * bitmap_empty(src, nbits) Are all bits zero in *src? + * bitmap_full(src, nbits) Are all bits set in *src? + * bitmap_weight(src, nbits) Hamming Weight: number set bits + * bitmap_set(dst, pos, nbits) Set specified bit area + * bitmap_clear(dst, pos, nbits) Clear specified bit area + * bitmap_find_next_zero_area(buf, len, pos, n, mask) Find bit free area + * bitmap_find_next_zero_area_off(buf, len, pos, n, mask) as above + * bitmap_shift_right(dst, src, n, nbits) *dst = *src >> n + * bitmap_shift_left(dst, src, n, nbits) *dst = *src << n + * bitmap_remap(dst, src, old, new, nbits) *dst = map(old, new)(src) + * bitmap_bitremap(oldbit, old, new, nbits) newbit = map(old, new)(oldbit) + * bitmap_onto(dst, orig, relmap, nbits) *dst = orig relative to relmap + * bitmap_fold(dst, orig, sz, nbits) dst bits = orig bits mod sz + * bitmap_parse(buf, buflen, dst, nbits) Parse bitmap dst from kernel buf + * bitmap_parse_user(ubuf, ulen, dst, nbits) Parse bitmap dst from user buf + * bitmap_parselist(buf, dst, nbits) Parse bitmap dst from kernel buf + * bitmap_parselist_user(buf, dst, nbits) Parse bitmap dst from user buf + * bitmap_find_free_region(bitmap, bits, order) Find and allocate bit region + * bitmap_release_region(bitmap, pos, order) Free specified bit region + * bitmap_allocate_region(bitmap, pos, order) Allocate specified bit region + * bitmap_from_u32array(dst, nbits, buf, nwords) *dst = *buf (nwords 32b words) + * bitmap_to_u32array(buf, nwords, src, nbits) *buf = *dst (nwords 32b words) + * */ -/* - * Also the following operations in asm/bitops.h apply to bitmaps. +/** + * DOC: bitmap bitops + * + * Also the following operations in asm/bitops.h apply to bitmaps.:: + * + * set_bit(bit, addr) *addr |= bit + * clear_bit(bit, addr) *addr &= ~bit + * change_bit(bit, addr) *addr ^= bit + * test_bit(bit, addr) Is bit set in *addr? + * test_and_set_bit(bit, addr) Set bit and return old value + * test_and_clear_bit(bit, addr) Clear bit and return old value + * test_and_change_bit(bit, addr) Change bit and return old value + * find_first_zero_bit(addr, nbits) Position first zero bit in *addr + * find_first_bit(addr, nbits) Position first set bit in *addr + * find_next_zero_bit(addr, nbits, bit) Position next zero bit in *addr >= bit + * find_next_bit(addr, nbits, bit) Position next set bit in *addr >= bit * - * set_bit(bit, addr) *addr |= bit - * clear_bit(bit, addr) *addr &= ~bit - * change_bit(bit, addr) *addr ^= bit - * test_bit(bit, addr) Is bit set in *addr? - * test_and_set_bit(bit, addr) Set bit and return old value - * test_and_clear_bit(bit, addr) Clear bit and return old value - * test_and_change_bit(bit, addr) Change bit and return old value - * find_first_zero_bit(addr, nbits) Position first zero bit in *addr - * find_first_bit(addr, nbits) Position first set bit in *addr - * find_next_zero_bit(addr, nbits, bit) Position next zero bit in *addr >= bit - * find_next_bit(addr, nbits, bit) Position next set bit in *addr >= bit */ -/* +/** + * DOC: declare bitmap * The DECLARE_BITMAP(name,bits) macro, in linux/types.h, can be used * to declare an array named 'name' of just enough unsigned longs to * contain all bit positions from 0 to 'bits' - 1. diff --git a/lib/bitmap.c b/lib/bitmap.c index c82c61b66e16..d8f0c094b18e 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -18,7 +18,9 @@ #include -/* +/** + * DOC: bitmap introduction + * * bitmaps provide an array of bits, implemented using an an * array of unsigned longs. The number of valid bits in a * given bitmap does _not_ need to be an exact multiple of -- cgit v1.2.3 From c8a8b7e672b74276abadcd987452acc8dc473aca Mon Sep 17 00:00:00 2001 From: Andrea Arcangeli Date: Wed, 18 Oct 2017 20:32:16 +0200 Subject: Documentation: kernel-enforcement-statement.rst: Remove Red Hat markings Doc update because significance of corporate affiliation was unclear. Acked-by: Doug Ledford Acked-by: Paolo Bonzini Acked-by: Hans de Goede Acked-by: Xin Long Signed-off-by: Andrea Arcangeli Signed-off-by: Richard Fontana Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index 421142690e7f..b2ae0405ccc0 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -52,7 +52,7 @@ we might work for today, have in the past, or will in the future. - Laura Abbott - Bjorn Andersson (Linaro) - - Andrea Arcangeli (Red Hat) + - Andrea Arcangeli - Neil Armstrong - Jens Axboe - Pablo Neira Ayuso @@ -61,7 +61,7 @@ we might work for today, have in the past, or will in the future. - Felipe Balbi - Arnd Bergmann - Ard Biesheuvel - - Paolo Bonzini (Red Hat) + - Paolo Bonzini - Christian Borntraeger - Mark Brown (Linaro) - Paul Burton @@ -70,7 +70,7 @@ we might work for today, have in the past, or will in the future. - Jonathan Corbet - Dennis Dalessandro - Vivien Didelot (Savoir-faire Linux) - - Hans de Goede (Red Hat) + - Hans de Goede - Mel Gorman (SUSE) - Sven Eckelmann - Alex Elder (Linaro) @@ -107,11 +107,11 @@ we might work for today, have in the past, or will in the future. - Viresh Kumar - Aneesh Kumar K.V - Julia Lawall - - Doug Ledford (Red Hat) + - Doug Ledford - Chuck Lever (Oracle) - Daniel Lezcano - Shaohua Li - - Xin Long (Red Hat) + - Xin Long - Tony Luck - Mike Marshall - Chris Mason -- cgit v1.2.3 From f76a2d9d7f9524c54dfd9c7b49ed26e488c4cf6c Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Wed, 11 Oct 2017 22:51:59 +0300 Subject: gpio-rcar: document R8A77970 bindings Renesas R-Car V3M (R8A77970) SoC also has the R-Car gen3 compatible GPIO controllers, so document the SoC specific bindings. Signed-off-by: Sergei Shtylyov Signed-off-by: Linus Walleij --- Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt index 51c86f69995e..41137a1cc099 100644 --- a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt +++ b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt @@ -14,6 +14,7 @@ Required Properties: - "renesas,gpio-r8a7794": for R8A7794 (R-Car E2) compatible GPIO controller. - "renesas,gpio-r8a7795": for R8A7795 (R-Car H3) compatible GPIO controller. - "renesas,gpio-r8a7796": for R8A7796 (R-Car M3-W) compatible GPIO controller. + - "renesas,gpio-r8a77970": for R8A77970 (R-Car V3M) compatible GPIO controller. - "renesas,rcar-gen1-gpio": for a generic R-Car Gen1 GPIO controller. - "renesas,rcar-gen2-gpio": for a generic R-Car Gen2 or RZ/G1 GPIO controller. - "renesas,rcar-gen3-gpio": for a generic R-Car Gen3 GPIO controller. -- cgit v1.2.3 From 07901a94f9f9b11cc3a4537e33229cb7e7df5d2a Mon Sep 17 00:00:00 2001 From: Alan Tull Date: Wed, 11 Oct 2017 11:34:44 -0500 Subject: gpio: gpio-dwapb: add optional reset Some platforms require reset to be released to allow register access. Signed-off-by: Alan Tull Reviewed-by: Philipp Zabel [Added DT bindings oneliner for standard reset binding] Signed-off-by: Linus Walleij --- Documentation/devicetree/bindings/gpio/snps-dwapb-gpio.txt | 1 + drivers/gpio/gpio-dwapb.c | 9 +++++++++ 2 files changed, 10 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/gpio/snps-dwapb-gpio.txt b/Documentation/devicetree/bindings/gpio/snps-dwapb-gpio.txt index 4d6c8cdc8586..4a75da7051bd 100644 --- a/Documentation/devicetree/bindings/gpio/snps-dwapb-gpio.txt +++ b/Documentation/devicetree/bindings/gpio/snps-dwapb-gpio.txt @@ -29,6 +29,7 @@ controller. - interrupts : The interrupt to the parent controller raised when GPIOs generate the interrupts. - snps,nr-gpios : The number of pins in the port, a single cell. +- resets : Reset line for the controller. Example: diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c index 5cdb7bc3ad99..d782ad195c89 100644 --- a/drivers/gpio/gpio-dwapb.c +++ b/drivers/gpio/gpio-dwapb.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include @@ -98,6 +99,7 @@ struct dwapb_gpio { unsigned int nr_ports; struct irq_domain *domain; unsigned int flags; + struct reset_control *rst; }; static inline u32 gpio_reg_v2_convert(unsigned int offset) @@ -629,6 +631,12 @@ static int dwapb_gpio_probe(struct platform_device *pdev) gpio->dev = &pdev->dev; gpio->nr_ports = pdata->nports; + gpio->rst = devm_reset_control_get_optional_shared(dev, NULL); + if (IS_ERR(gpio->rst)) + return PTR_ERR(gpio->rst); + + reset_control_deassert(gpio->rst); + gpio->ports = devm_kcalloc(&pdev->dev, gpio->nr_ports, sizeof(*gpio->ports), GFP_KERNEL); if (!gpio->ports) @@ -680,6 +688,7 @@ static int dwapb_gpio_remove(struct platform_device *pdev) dwapb_gpio_unregister(gpio); dwapb_irq_teardown(gpio); + reset_control_assert(gpio->rst); return 0; } -- cgit v1.2.3 From eec1d566cdf94b57e8f5ba9fe60eea214929bcfc Mon Sep 17 00:00:00 2001 From: Lukas Wunner Date: Thu, 12 Oct 2017 12:40:10 +0200 Subject: gpio: Introduce ->get_multiple callback SPI-attached GPIO controllers typically read out all inputs in one go. If callers desire the values of multipe inputs, ideally a single readout should take place to return the desired values. However the current driver API only offers a ->get callback but no ->get_multiple (unlike ->set_multiple, which is present). Thus, to read multiple inputs, a full readout needs to be performed for every single value (barring driver-internal caching), which is inefficient. In fact, the lack of a ->get_multiple callback has been bemoaned repeatedly by the gpio subsystem maintainer: http://www.spinics.net/lists/linux-gpio/msg10571.html http://www.spinics.net/lists/devicetree/msg121734.html Introduce the missing callback. Add corresponding consumer functions such as gpiod_get_array_value(). Amend linehandle_ioctl() to take advantage of the newly added infrastructure. Update the documentation. Cc: Rojhalat Ibrahim Signed-off-by: Lukas Wunner Signed-off-by: Linus Walleij --- Documentation/gpio/consumer.txt | 41 ++++++--- drivers/gpio/gpiolib.c | 179 +++++++++++++++++++++++++++++++++++++--- drivers/gpio/gpiolib.h | 4 + include/linux/gpio/consumer.h | 43 ++++++++++ include/linux/gpio/driver.h | 5 ++ 5 files changed, 250 insertions(+), 22 deletions(-) (limited to 'Documentation') diff --git a/Documentation/gpio/consumer.txt b/Documentation/gpio/consumer.txt index ddbfa775a78a..63e1bd1d88e3 100644 --- a/Documentation/gpio/consumer.txt +++ b/Documentation/gpio/consumer.txt @@ -295,9 +295,22 @@ as possible, especially by drivers which should not care about the actual physical line level and worry about the logical value instead. -Set multiple GPIO outputs with a single function call ------------------------------------------------------ -The following functions set the output values of an array of GPIOs: +Access multiple GPIOs with a single function call +------------------------------------------------- +The following functions get or set the values of an array of GPIOs: + + int gpiod_get_array_value(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array); + int gpiod_get_raw_array_value(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array); + int gpiod_get_array_value_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array); + int gpiod_get_raw_array_value_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array); void gpiod_set_array_value(unsigned int array_size, struct gpio_desc **desc_array, @@ -312,34 +325,40 @@ The following functions set the output values of an array of GPIOs: struct gpio_desc **desc_array, int *value_array) -The array can be an arbitrary set of GPIOs. The functions will try to set +The array can be an arbitrary set of GPIOs. The functions will try to access GPIOs belonging to the same bank or chip simultaneously if supported by the corresponding chip driver. In that case a significantly improved performance -can be expected. If simultaneous setting is not possible the GPIOs will be set -sequentially. +can be expected. If simultaneous access is not possible the GPIOs will be +accessed sequentially. -The gpiod_set_array() functions take three arguments: +The functions take three arguments: * array_size - the number of array elements * desc_array - an array of GPIO descriptors - * value_array - an array of values to assign to the GPIOs + * value_array - an array to store the GPIOs' values (get) or + an array of values to assign to the GPIOs (set) The descriptor array can be obtained using the gpiod_get_array() function or one of its variants. If the group of descriptors returned by that function -matches the desired group of GPIOs, those GPIOs can be set by simply using +matches the desired group of GPIOs, those GPIOs can be accessed by simply using the struct gpio_descs returned by gpiod_get_array(): struct gpio_descs *my_gpio_descs = gpiod_get_array(...); gpiod_set_array_value(my_gpio_descs->ndescs, my_gpio_descs->desc, my_gpio_values); -It is also possible to set a completely arbitrary array of descriptors. The +It is also possible to access a completely arbitrary array of descriptors. The descriptors may be obtained using any combination of gpiod_get() and gpiod_get_array(). Afterwards the array of descriptors has to be setup -manually before it can be used with gpiod_set_array(). +manually before it can be passed to one of the above functions. Note that for optimal performance GPIOs belonging to the same chip should be contiguous within the array of descriptors. +The return value of gpiod_get_array_value() and its variants is 0 on success +or negative on error. Note the difference to gpiod_get_value(), which returns +0 or 1 on success to convey the GPIO value. With the array functions, the GPIO +values are stored in value_array rather than passed back as return value. + GPIOs mapped to IRQs -------------------- diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 8113929eb2bd..ff46a1b6299e 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -365,28 +365,28 @@ static long linehandle_ioctl(struct file *filep, unsigned int cmd, struct linehandle_state *lh = filep->private_data; void __user *ip = (void __user *)arg; struct gpiohandle_data ghd; + int vals[GPIOHANDLES_MAX]; int i; if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) { - int val; + /* TODO: check if descriptors are really input */ + int ret = gpiod_get_array_value_complex(false, + true, + lh->numdescs, + lh->descs, + vals); + if (ret) + return ret; memset(&ghd, 0, sizeof(ghd)); - - /* TODO: check if descriptors are really input */ - for (i = 0; i < lh->numdescs; i++) { - val = gpiod_get_value_cansleep(lh->descs[i]); - if (val < 0) - return val; - ghd.values[i] = val; - } + for (i = 0; i < lh->numdescs; i++) + ghd.values[i] = vals[i]; if (copy_to_user(ip, &ghd, sizeof(ghd))) return -EFAULT; return 0; } else if (cmd == GPIOHANDLE_SET_LINE_VALUES_IOCTL) { - int vals[GPIOHANDLES_MAX]; - /* TODO: check if descriptors are really output */ if (copy_from_user(&ghd, ip, sizeof(ghd))) return -EFAULT; @@ -2466,6 +2466,71 @@ static int gpiod_get_raw_value_commit(const struct gpio_desc *desc) return value; } +static int gpio_chip_get_multiple(struct gpio_chip *chip, + unsigned long *mask, unsigned long *bits) +{ + if (chip->get_multiple) { + return chip->get_multiple(chip, mask, bits); + } else if (chip->get) { + int i, value; + + for_each_set_bit(i, mask, chip->ngpio) { + value = chip->get(chip, i); + if (value < 0) + return value; + __assign_bit(i, bits, value); + } + return 0; + } + return -EIO; +} + +int gpiod_get_array_value_complex(bool raw, bool can_sleep, + unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array) +{ + int i = 0; + + while (i < array_size) { + struct gpio_chip *chip = desc_array[i]->gdev->chip; + unsigned long mask[BITS_TO_LONGS(chip->ngpio)]; + unsigned long bits[BITS_TO_LONGS(chip->ngpio)]; + int first, j, ret; + + if (!can_sleep) + WARN_ON(chip->can_sleep); + + /* collect all inputs belonging to the same chip */ + first = i; + memset(mask, 0, sizeof(mask)); + do { + const struct gpio_desc *desc = desc_array[i]; + int hwgpio = gpio_chip_hwgpio(desc); + + __set_bit(hwgpio, mask); + i++; + } while ((i < array_size) && + (desc_array[i]->gdev->chip == chip)); + + ret = gpio_chip_get_multiple(chip, mask, bits); + if (ret) + return ret; + + for (j = first; j < i; j++) { + const struct gpio_desc *desc = desc_array[j]; + int hwgpio = gpio_chip_hwgpio(desc); + int value = test_bit(hwgpio, bits); + + if (!raw && test_bit(FLAG_ACTIVE_LOW, &desc->flags)) + value = !value; + value_array[j] = value; + trace_gpio_value(desc_to_gpio(desc), 1, value); + } + } + return 0; +} + /** * gpiod_get_raw_value() - return a gpio's raw value * @desc: gpio whose value will be returned @@ -2514,6 +2579,51 @@ int gpiod_get_value(const struct gpio_desc *desc) } EXPORT_SYMBOL_GPL(gpiod_get_value); +/** + * gpiod_get_raw_array_value() - read raw values from an array of GPIOs + * @array_size: number of elements in the descriptor / value arrays + * @desc_array: array of GPIO descriptors whose values will be read + * @value_array: array to store the read values + * + * Read the raw values of the GPIOs, i.e. the values of the physical lines + * without regard for their ACTIVE_LOW status. Return 0 in case of success, + * else an error code. + * + * This function should be called from contexts where we cannot sleep, + * and it will complain if the GPIO chip functions potentially sleep. + */ +int gpiod_get_raw_array_value(unsigned int array_size, + struct gpio_desc **desc_array, int *value_array) +{ + if (!desc_array) + return -EINVAL; + return gpiod_get_array_value_complex(true, false, array_size, + desc_array, value_array); +} +EXPORT_SYMBOL_GPL(gpiod_get_raw_array_value); + +/** + * gpiod_get_array_value() - read values from an array of GPIOs + * @array_size: number of elements in the descriptor / value arrays + * @desc_array: array of GPIO descriptors whose values will be read + * @value_array: array to store the read values + * + * Read the logical values of the GPIOs, i.e. taking their ACTIVE_LOW status + * into account. Return 0 in case of success, else an error code. + * + * This function should be called from contexts where we cannot sleep, + * and it will complain if the GPIO chip functions potentially sleep. + */ +int gpiod_get_array_value(unsigned int array_size, + struct gpio_desc **desc_array, int *value_array) +{ + if (!desc_array) + return -EINVAL; + return gpiod_get_array_value_complex(false, false, array_size, + desc_array, value_array); +} +EXPORT_SYMBOL_GPL(gpiod_get_array_value); + /* * gpio_set_open_drain_value_commit() - Set the open drain gpio's value. * @desc: gpio descriptor whose state need to be set. @@ -2942,6 +3052,53 @@ int gpiod_get_value_cansleep(const struct gpio_desc *desc) } EXPORT_SYMBOL_GPL(gpiod_get_value_cansleep); +/** + * gpiod_get_raw_array_value_cansleep() - read raw values from an array of GPIOs + * @array_size: number of elements in the descriptor / value arrays + * @desc_array: array of GPIO descriptors whose values will be read + * @value_array: array to store the read values + * + * Read the raw values of the GPIOs, i.e. the values of the physical lines + * without regard for their ACTIVE_LOW status. Return 0 in case of success, + * else an error code. + * + * This function is to be called from contexts that can sleep. + */ +int gpiod_get_raw_array_value_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array) +{ + might_sleep_if(extra_checks); + if (!desc_array) + return -EINVAL; + return gpiod_get_array_value_complex(true, true, array_size, + desc_array, value_array); +} +EXPORT_SYMBOL_GPL(gpiod_get_raw_array_value_cansleep); + +/** + * gpiod_get_array_value_cansleep() - read values from an array of GPIOs + * @array_size: number of elements in the descriptor / value arrays + * @desc_array: array of GPIO descriptors whose values will be read + * @value_array: array to store the read values + * + * Read the logical values of the GPIOs, i.e. taking their ACTIVE_LOW status + * into account. Return 0 in case of success, else an error code. + * + * This function is to be called from contexts that can sleep. + */ +int gpiod_get_array_value_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array) +{ + might_sleep_if(extra_checks); + if (!desc_array) + return -EINVAL; + return gpiod_get_array_value_complex(false, true, array_size, + desc_array, value_array); +} +EXPORT_SYMBOL_GPL(gpiod_get_array_value_cansleep); + /** * gpiod_set_raw_value_cansleep() - assign a gpio's raw value * @desc: gpio whose value will be assigned diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index d003ccb12781..10a48caf8477 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -180,6 +180,10 @@ static inline bool acpi_can_fallback_to_crs(struct acpi_device *adev, #endif struct gpio_desc *gpiochip_get_desc(struct gpio_chip *chip, u16 hwnum); +int gpiod_get_array_value_complex(bool raw, bool can_sleep, + unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array); void gpiod_set_array_value_complex(bool raw, bool can_sleep, unsigned int array_size, struct gpio_desc **desc_array, diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h index 8f702fcbe485..d4920ec1f1da 100644 --- a/include/linux/gpio/consumer.h +++ b/include/linux/gpio/consumer.h @@ -99,10 +99,15 @@ int gpiod_direction_output_raw(struct gpio_desc *desc, int value); /* Value get/set from non-sleeping context */ int gpiod_get_value(const struct gpio_desc *desc); +int gpiod_get_array_value(unsigned int array_size, + struct gpio_desc **desc_array, int *value_array); void gpiod_set_value(struct gpio_desc *desc, int value); void gpiod_set_array_value(unsigned int array_size, struct gpio_desc **desc_array, int *value_array); int gpiod_get_raw_value(const struct gpio_desc *desc); +int gpiod_get_raw_array_value(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array); void gpiod_set_raw_value(struct gpio_desc *desc, int value); void gpiod_set_raw_array_value(unsigned int array_size, struct gpio_desc **desc_array, @@ -110,11 +115,17 @@ void gpiod_set_raw_array_value(unsigned int array_size, /* Value get/set from sleeping context */ int gpiod_get_value_cansleep(const struct gpio_desc *desc); +int gpiod_get_array_value_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array); void gpiod_set_value_cansleep(struct gpio_desc *desc, int value); void gpiod_set_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, int *value_array); int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc); +int gpiod_get_raw_array_value_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array); void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value); void gpiod_set_raw_array_value_cansleep(unsigned int array_size, struct gpio_desc **desc_array, @@ -305,6 +316,14 @@ static inline int gpiod_get_value(const struct gpio_desc *desc) WARN_ON(1); return 0; } +static inline int gpiod_get_array_value(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array) +{ + /* GPIO can never have been requested */ + WARN_ON(1); + return 0; +} static inline void gpiod_set_value(struct gpio_desc *desc, int value) { /* GPIO can never have been requested */ @@ -323,6 +342,14 @@ static inline int gpiod_get_raw_value(const struct gpio_desc *desc) WARN_ON(1); return 0; } +static inline int gpiod_get_raw_array_value(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array) +{ + /* GPIO can never have been requested */ + WARN_ON(1); + return 0; +} static inline void gpiod_set_raw_value(struct gpio_desc *desc, int value) { /* GPIO can never have been requested */ @@ -342,6 +369,14 @@ static inline int gpiod_get_value_cansleep(const struct gpio_desc *desc) WARN_ON(1); return 0; } +static inline int gpiod_get_array_value_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array) +{ + /* GPIO can never have been requested */ + WARN_ON(1); + return 0; +} static inline void gpiod_set_value_cansleep(struct gpio_desc *desc, int value) { /* GPIO can never have been requested */ @@ -360,6 +395,14 @@ static inline int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc) WARN_ON(1); return 0; } +static inline int gpiod_get_raw_array_value_cansleep(unsigned int array_size, + struct gpio_desc **desc_array, + int *value_array) +{ + /* GPIO can never have been requested */ + WARN_ON(1); + return 0; +} static inline void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value) { diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 6bbda879fb8b..bda95a9b7b8c 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -35,6 +35,8 @@ struct module; * @direction_input: configures signal "offset" as input, or returns error * @direction_output: configures signal "offset" as output, or returns error * @get: returns value for signal "offset", 0=low, 1=high, or negative error + * @get_multiple: reads values for multiple signals defined by "mask" and + * stores them in "bits", returns 0 on success or negative error * @set: assigns output value for signal "offset" * @set_multiple: assigns output values for multiple signals defined by "mask" * @set_config: optional hook for all kinds of settings. Uses the same @@ -125,6 +127,9 @@ struct gpio_chip { unsigned offset, int value); int (*get)(struct gpio_chip *chip, unsigned offset); + int (*get_multiple)(struct gpio_chip *chip, + unsigned long *mask, + unsigned long *bits); void (*set)(struct gpio_chip *chip, unsigned offset, int value); void (*set_multiple)(struct gpio_chip *chip, -- cgit v1.2.3 From 0747c3ecfbed25cb6e31b09a834091757a3ef866 Mon Sep 17 00:00:00 2001 From: Tom Saeger Date: Thu, 12 Oct 2017 15:24:16 -0500 Subject: Documentation: fix ref to gpio.txt Signed-off-by: Tom Saeger Signed-off-by: Linus Walleij --- Documentation/ABI/obsolete/sysfs-gpio | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/ABI/obsolete/sysfs-gpio b/Documentation/ABI/obsolete/sysfs-gpio index 867c1fab20e2..32513dc2eec9 100644 --- a/Documentation/ABI/obsolete/sysfs-gpio +++ b/Documentation/ABI/obsolete/sysfs-gpio @@ -11,7 +11,7 @@ Description: Kernel code may export it for complete or partial access. GPIOs are identified as they are inside the kernel, using integers in - the range 0..INT_MAX. See Documentation/gpio.txt for more information. + the range 0..INT_MAX. See Documentation/gpio/gpio.txt for more information. /sys/class/gpio /export ... asks the kernel to export a GPIO to userspace -- cgit v1.2.3 From 1f63fab955dbcb8f6db56d67a4c63fc0746e4fe1 Mon Sep 17 00:00:00 2001 From: Lukas Wunner Date: Thu, 12 Oct 2017 12:40:10 +0200 Subject: dt-bindings: Document common property for daisy-chained devices Many serially-attached GPIO and IIO devices are daisy-chainable. Examples for GPIO devices are Maxim MAX3191x and TI SN65HVS88x: https://datasheets.maximintegrated.com/en/ds/MAX31913.pdf http://www.ti.com/lit/ds/symlink/sn65hvs880.pdf Examples for IIO devices are TI DAC128S085 and TI DAC161S055: http://www.ti.com/lit/ds/symlink/dac128s085.pdf http://www.ti.com/lit/ds/symlink/dac161s055.pdf We already have drivers for daisy-chainable devices in the tree but their devicetree bindings are somewhat inconsistent and ill-named: The gpio-74x164.c driver uses "registers-number" to convey the number of devices in the daisy-chain. (Sans vendor prefix, multiple vendors sell compatible versions of this chip.) The gpio-pisosr.c driver takes a different approach and calculates the number of devices in the daisy-chain by dividing the common "ngpios" property (Documentation/devicetree/bindings/gpio/gpio.txt) by 8 (which assumes that each chip has 8 inputs). Let's standardize on a common "#daisy-chained-devices" property. That name was chosen because it's the term most frequently used in datasheets. (A less frequently used synonym is "cascaded devices".) Signed-off-by: Lukas Wunner Acked-by: Jonathan Cameron Acked-by: Rob Herring Signed-off-by: Linus Walleij --- .../devicetree/bindings/common-properties.txt | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/common-properties.txt b/Documentation/devicetree/bindings/common-properties.txt index 697714f8d75c..a3448bfa1c82 100644 --- a/Documentation/devicetree/bindings/common-properties.txt +++ b/Documentation/devicetree/bindings/common-properties.txt @@ -1,4 +1,8 @@ Common properties +================= + +Endianness +---------- The Devicetree Specification does not define any properties related to hardware byteswapping, but endianness issues show up frequently in porting Linux to @@ -58,3 +62,25 @@ dev: dev@40031000 { ... little-endian; }; + +Daisy-chained devices +--------------------- + +Many serially-attached GPIO and IIO devices are daisy-chainable. To the +host controller, a daisy-chain appears as a single device, but the number +of inputs and outputs it provides is the sum of inputs and outputs provided +by all of its devices. The driver needs to know how many devices the +daisy-chain comprises to determine the amount of data exchanged, how many +inputs and outputs to register and so on. + +Optional properties: + - #daisy-chained-devices: Number of devices in the daisy-chain (default is 1). + +Example: +gpio@0 { + compatible = "name"; + reg = <0>; + gpio-controller; + #gpio-cells = <2>; + #daisy-chained-devices = <3>; +}; -- cgit v1.2.3 From c019c18da10dae244308f584707804d0c148fe0b Mon Sep 17 00:00:00 2001 From: Lukas Wunner Date: Thu, 12 Oct 2017 12:40:10 +0200 Subject: dt-bindings: gpio: max3191x: Document new driver Add device tree bindings for Maxim MAX3191x industrial serializer. Cc: Mathias Duckeck Signed-off-by: Lukas Wunner Acked-by: Rob Herring Signed-off-by: Linus Walleij --- .../devicetree/bindings/gpio/gpio-max3191x.txt | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-max3191x.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/gpio/gpio-max3191x.txt b/Documentation/devicetree/bindings/gpio/gpio-max3191x.txt new file mode 100644 index 000000000000..b3a6444b8f45 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-max3191x.txt @@ -0,0 +1,59 @@ +GPIO driver for Maxim MAX3191x industrial serializer + +Required properties: + - compatible: Must be one of: + "maxim,max31910" + "maxim,max31911" + "maxim,max31912" + "maxim,max31913" + "maxim,max31953" + "maxim,max31963" + - reg: Chip select number. + - gpio-controller: Marks the device node as a GPIO controller. + - #gpio-cells: Should be two. For consumer use see gpio.txt. + +Optional properties: + - #daisy-chained-devices: + Number of chips in the daisy-chain (default is 1). + - maxim,modesel-gpios: GPIO pins to configure modesel of each chip. + The number of GPIOs must equal "#daisy-chained-devices" + (if each chip is driven by a separate pin) or 1 + (if all chips are wired to the same pin). + - maxim,fault-gpios: GPIO pins to read fault of each chip. + The number of GPIOs must equal "#daisy-chained-devices" + or 1. + - maxim,db0-gpios: GPIO pins to configure debounce of each chip. + The number of GPIOs must equal "#daisy-chained-devices" + or 1. + - maxim,db1-gpios: GPIO pins to configure debounce of each chip. + The number of GPIOs must equal "maxim,db0-gpios". + - maxim,modesel-8bit: Boolean whether the modesel pin of the chips is + pulled high (8-bit mode). Use this if the modesel pin + is hardwired and consequently "maxim,modesel-gpios" + cannot be specified. By default if neither this nor + "maxim,modesel-gpios" is given, the driver assumes + that modesel is pulled low (16-bit mode). + - maxim,ignore-undervoltage: + Boolean whether to ignore undervoltage alarms signaled + by the "maxim,fault-gpios" or by the status byte + (in 16-bit mode). Use this if the chips are powered + through 5VOUT instead of VCC24V, in which case they + will constantly signal undervoltage. + +For other required and optional properties of SPI slave nodes please refer to +../spi/spi-bus.txt. + +Example: + gpio@0 { + compatible = "maxim,max31913"; + reg = <0>; + gpio-controller; + #gpio-cells = <2>; + + maxim,modesel-gpios = <&gpio2 23>; + maxim,fault-gpios = <&gpio2 24 GPIO_ACTIVE_LOW>; + maxim,db0-gpios = <&gpio2 25>; + maxim,db1-gpios = <&gpio2 26>; + + spi-max-frequency = <25000000>; + }; -- cgit v1.2.3 From e20824e944c3bf4352fcd8d9f446c41b53901e7b Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 18 Sep 2017 15:46:41 +0200 Subject: dt-bindings: timer: renesas, cmt: Fix SoC-specific compatible values While the new family-specific compatible values introduced by commit 6f54cc1adcc8957f ("devicetree: bindings: R-Car Gen2 CMT0 and CMT1 bindings") use the recommended order ",-", the new SoC-specific compatible values still use the old and deprecated order ",-". Switch the SoC-specific compatible values to the recommended order while there are no upstream users of these compatible values yet. Fixes: 7f03a0ecfdc786c1 ("devicetree: bindings: r8a73a4 and R-Car Gen2 CMT bindings") Fixes: 63d9e8ca0dd4bfa4 ("devicetree: bindings: Deprecate property, update example") Signed-off-by: Geert Uytterhoeven Acked-by: Rob Herring Reviewed-by: Laurent Pinchart Signed-off-by: Daniel Lezcano --- .../devicetree/bindings/timer/renesas,cmt.txt | 24 +++++++++++----------- 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/timer/renesas,cmt.txt b/Documentation/devicetree/bindings/timer/renesas,cmt.txt index 6ca6b9e582a0..d740989eb569 100644 --- a/Documentation/devicetree/bindings/timer/renesas,cmt.txt +++ b/Documentation/devicetree/bindings/timer/renesas,cmt.txt @@ -20,16 +20,16 @@ Required Properties: (CMT1 on sh73a0 and r8a7740) This is a fallback for the above renesas,cmt-48-* entries. - - "renesas,cmt0-r8a73a4" for the 32-bit CMT0 device included in r8a73a4. - - "renesas,cmt1-r8a73a4" for the 48-bit CMT1 device included in r8a73a4. - - "renesas,cmt0-r8a7790" for the 32-bit CMT0 device included in r8a7790. - - "renesas,cmt1-r8a7790" for the 48-bit CMT1 device included in r8a7790. - - "renesas,cmt0-r8a7791" for the 32-bit CMT0 device included in r8a7791. - - "renesas,cmt1-r8a7791" for the 48-bit CMT1 device included in r8a7791. - - "renesas,cmt0-r8a7793" for the 32-bit CMT0 device included in r8a7793. - - "renesas,cmt1-r8a7793" for the 48-bit CMT1 device included in r8a7793. - - "renesas,cmt0-r8a7794" for the 32-bit CMT0 device included in r8a7794. - - "renesas,cmt1-r8a7794" for the 48-bit CMT1 device included in r8a7794. + - "renesas,r8a73a4-cmt0" for the 32-bit CMT0 device included in r8a73a4. + - "renesas,r8a73a4-cmt1" for the 48-bit CMT1 device included in r8a73a4. + - "renesas,r8a7790-cmt0" for the 32-bit CMT0 device included in r8a7790. + - "renesas,r8a7790-cmt1" for the 48-bit CMT1 device included in r8a7790. + - "renesas,r8a7791-cmt0" for the 32-bit CMT0 device included in r8a7791. + - "renesas,r8a7791-cmt1" for the 48-bit CMT1 device included in r8a7791. + - "renesas,r8a7793-cmt0" for the 32-bit CMT0 device included in r8a7793. + - "renesas,r8a7793-cmt1" for the 48-bit CMT1 device included in r8a7793. + - "renesas,r8a7794-cmt0" for the 32-bit CMT0 device included in r8a7794. + - "renesas,r8a7794-cmt1" for the 48-bit CMT1 device included in r8a7794. - "renesas,rcar-gen2-cmt0" for 32-bit CMT0 devices included in R-Car Gen2. - "renesas,rcar-gen2-cmt1" for 48-bit CMT1 devices included in R-Car Gen2. @@ -46,7 +46,7 @@ Required Properties: Example: R8A7790 (R-Car H2) CMT0 and CMT1 nodes cmt0: timer@ffca0000 { - compatible = "renesas,cmt0-r8a7790", "renesas,rcar-gen2-cmt0"; + compatible = "renesas,r8a7790-cmt0", "renesas,rcar-gen2-cmt0"; reg = <0 0xffca0000 0 0x1004>; interrupts = <0 142 IRQ_TYPE_LEVEL_HIGH>, <0 142 IRQ_TYPE_LEVEL_HIGH>; @@ -55,7 +55,7 @@ Example: R8A7790 (R-Car H2) CMT0 and CMT1 nodes }; cmt1: timer@e6130000 { - compatible = "renesas,cmt1-r8a7790", "renesas,rcar-gen2-cmt1"; + compatible = "renesas,r8a7790-cmt1", "renesas,rcar-gen2-cmt1"; reg = <0 0xe6130000 0 0x1004>; interrupts = <0 120 IRQ_TYPE_LEVEL_HIGH>, <0 121 IRQ_TYPE_LEVEL_HIGH>, -- cgit v1.2.3 From 055f624e1eb9cae28211a7e1e140111d29228e13 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 19 Oct 2017 16:21:05 -0700 Subject: Input: gpio_mouse - add DT bindings This adds DT bindings for simple mice attached to GPIO lines. As the properties are very general and pertains to all mice I can think of, we use very generic names for the 4-7 GPIO lines, "up", "down" etc. Acked-by: Hans-Christian Noren Egtvedt Signed-off-by: Linus Walleij Acked-by: Rob Herring Signed-off-by: Dmitry Torokhov --- .../devicetree/bindings/input/gpio-mouse.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/gpio-mouse.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/input/gpio-mouse.txt b/Documentation/devicetree/bindings/input/gpio-mouse.txt new file mode 100644 index 000000000000..519510a11af9 --- /dev/null +++ b/Documentation/devicetree/bindings/input/gpio-mouse.txt @@ -0,0 +1,32 @@ +Device-Tree bindings for GPIO attached mice + +This simply uses standard GPIO handles to define a simple mouse connected +to 5-7 GPIO lines. + +Required properties: + - compatible: must be "gpio-mouse" + - scan-interval-ms: The scanning interval in milliseconds + - up-gpios: GPIO line phandle to the line indicating "up" + - down-gpios: GPIO line phandle to the line indicating "down" + - left-gpios: GPIO line phandle to the line indicating "left" + - right-gpios: GPIO line phandle to the line indicating "right" + +Optional properties: + - button-left-gpios: GPIO line handle to the left mouse button + - button-middle-gpios: GPIO line handle to the middle mouse button + - button-right-gpios: GPIO line handle to the right mouse button +Example: + +#include + +gpio-mouse { + compatible = "gpio-mouse"; + scan-interval-ms = <50>; + up-gpios = <&gpio0 0 GPIO_ACTIVE_LOW>; + down-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>; + left-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>; + right-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>; + button-left-gpios = <&gpio0 4 GPIO_ACTIVE_LOW>; + button-middle-gpios = <&gpio0 5 GPIO_ACTIVE_LOW>; + button-right-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>; +}; -- cgit v1.2.3 From 07fd1761e1cd2b5ecdb470fc228d52ccdf75e05b Mon Sep 17 00:00:00 2001 From: Cyril Bur Date: Thu, 12 Oct 2017 21:17:16 +1100 Subject: powerpc/tm: Add commandline option to disable hardware transactional memory Currently the kernel relies on firmware to inform it whether or not the CPU supports HTM and as long as the kernel was built with CONFIG_PPC_TRANSACTIONAL_MEM=y then it will allow userspace to make use of the facility. There may be situations where it would be advantageous for the kernel to not allow userspace to use HTM, currently the only way to achieve this is to recompile the kernel with CONFIG_PPC_TRANSACTIONAL_MEM=n. This patch adds a simple commandline option so that HTM can be disabled at boot time. Signed-off-by: Cyril Bur [mpe: Simplify to a bool, move to prom.c, put doco in the right place. Always disable, regardless of initial state, to avoid user confusion.] Signed-off-by: Michael Ellerman --- Documentation/admin-guide/kernel-parameters.txt | 4 ++++ arch/powerpc/kernel/prom.c | 31 +++++++++++++++++++++++++ 2 files changed, 35 insertions(+) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 05496622b4ef..ef03e6e16bdb 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3185,6 +3185,10 @@ allowed (eg kernel_enable_fpu()/kernel_disable_fpu()). There is some performance impact when enabling this. + ppc_tm= [PPC] + Format: {"off"} + Disable Hardware Transactional Memory + print-fatal-signals= [KNL] debug: print fatal signals diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index f83056297441..d9bd6555f980 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -658,6 +658,35 @@ static void __init early_reserve_mem(void) #endif } +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM +static bool tm_disabled __initdata; + +static int __init parse_ppc_tm(char *str) +{ + bool res; + + if (kstrtobool(str, &res)) + return -EINVAL; + + tm_disabled = !res; + + return 0; +} +early_param("ppc_tm", parse_ppc_tm); + +static void __init tm_init(void) +{ + if (tm_disabled) { + pr_info("Disabling hardware transactional memory (HTM)\n"); + cur_cpu_spec->cpu_user_features2 &= + ~(PPC_FEATURE2_HTM_NOSC | PPC_FEATURE2_HTM); + cur_cpu_spec->cpu_features &= ~CPU_FTR_TM; + } +} +#else +static void tm_init(void) { } +#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */ + void __init early_init_devtree(void *params) { phys_addr_t limit; @@ -767,6 +796,8 @@ void __init early_init_devtree(void *params) powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE; #endif + tm_init(); + DBG(" <- early_init_devtree()\n"); } -- cgit v1.2.3 From 87d9fa647020fb65985ec08826f6c77b9b4084af Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Wed, 18 Oct 2017 09:21:26 +0200 Subject: dt-bindings: net: sh_eth: add R-Car Gen[12] fallback compatibility strings Add fallback compatibility strings for R-Car Gen 1 and 2. In the case of Renesas R-Car hardware we know that there are generations of SoCs, f.e. Gen 1 and 2. But beyond that its not clear what the relationship between IP blocks might be. For example, I believe that r8a7790 is older than r8a7791 but that doesn't imply that the latter is a descendant of the former or vice versa. We can, however, by examining the documentation and behaviour of the hardware at run-time observe that the current driver implementation appears to be compatible with the IP blocks on SoCs within a given generation. For the above reasons and convenience when enabling new SoCs a per-generation fallback compatibility string scheme is being adopted for drivers for Renesas SoCs. Note that R-Car Gen2 and RZ/G1 have many compatible IP blocks. The approach that has been consistently taken for other IP blocks is to name common code, compatibility strings and so on after R-Car Gen2. Signed-off-by: Simon Horman Reviewed-by: Geert Uytterhoeven Reviewed-by: Sergei Shtylyov Signed-off-by: David S. Miller --- Documentation/devicetree/bindings/net/sh_eth.txt | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/sh_eth.txt b/Documentation/devicetree/bindings/net/sh_eth.txt index 0115c85a2425..5172799a7f1a 100644 --- a/Documentation/devicetree/bindings/net/sh_eth.txt +++ b/Documentation/devicetree/bindings/net/sh_eth.txt @@ -4,7 +4,8 @@ This file provides information on what the device node for the SH EtherMAC interface contains. Required properties: -- compatible: "renesas,gether-r8a7740" if the device is a part of R8A7740 SoC. +- compatible: Must contain one or more of the following: + "renesas,gether-r8a7740" if the device is a part of R8A7740 SoC. "renesas,ether-r8a7743" if the device is a part of R8A7743 SoC. "renesas,ether-r8a7745" if the device is a part of R8A7745 SoC. "renesas,ether-r8a7778" if the device is a part of R8A7778 SoC. @@ -14,6 +15,14 @@ Required properties: "renesas,ether-r8a7793" if the device is a part of R8A7793 SoC. "renesas,ether-r8a7794" if the device is a part of R8A7794 SoC. "renesas,ether-r7s72100" if the device is a part of R7S72100 SoC. + "renesas,rcar-gen1-ether" for a generic R-Car Gen1 device. + "renesas,rcar-gen2-ether" for a generic R-Car Gen2 or RZ/G1 + device. + + When compatible with the generic version, nodes must list + the SoC-specific version corresponding to the platform + first followed by the generic version. + - reg: offset and length of (1) the E-DMAC/feLic register block (required), (2) the TSU register block (optional). - interrupts: interrupt specifier for the sole interrupt. @@ -36,7 +45,8 @@ Optional properties: Example (Lager board): ethernet@ee700000 { - compatible = "renesas,ether-r8a7790"; + compatible = "renesas,ether-r8a7790", + "renesas,rcar-gen2-ether"; reg = <0 0xee700000 0 0x400>; interrupt-parent = <&gic>; interrupts = <0 162 IRQ_TYPE_LEVEL_HIGH>; -- cgit v1.2.3 From d454cecc637b90996ab15b2e61a6cc51b7e1463c Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 12 Oct 2017 10:54:22 +0200 Subject: clk: renesas: rz: clk-rz is meant for RZ/A1 The RZ family of Renesas SoCs has several different subfamilies (RZ/A, RZ/G, RZ/N, and RZ/T). Clarify that the renesas,rz-cpg-clocks DT bindings and clk-rz driver apply to RZ/A1 only. Signed-off-by: Geert Uytterhoeven Reviewed-by: Simon Horman Acked-by: Rob Herring --- Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt | 4 ++-- drivers/clk/renesas/clk-rz.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt b/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt index bb5d942075fb..8ff3e2774ed8 100644 --- a/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt +++ b/Documentation/devicetree/bindings/clock/renesas,rz-cpg-clocks.txt @@ -1,6 +1,6 @@ -* Renesas RZ Clock Pulse Generator (CPG) +* Renesas RZ/A1 Clock Pulse Generator (CPG) -The CPG generates core clocks for the RZ SoCs. It includes the PLL, variable +The CPG generates core clocks for the RZ/A1 SoCs. It includes the PLL, variable CPU and GPU clocks, and several fixed ratio dividers. The CPG also provides a Clock Domain for SoC devices, in combination with the CPG Module Stop (MSTP) Clocks. diff --git a/drivers/clk/renesas/clk-rz.c b/drivers/clk/renesas/clk-rz.c index 5adb934326d1..127c58135c8f 100644 --- a/drivers/clk/renesas/clk-rz.c +++ b/drivers/clk/renesas/clk-rz.c @@ -1,5 +1,5 @@ /* - * rz Core CPG Clocks + * RZ/A1 Core CPG Clocks * * Copyright (C) 2013 Ideas On Board SPRL * Copyright (C) 2014 Wolfram Sang, Sang Engineering -- cgit v1.2.3 From 9b17374e11c7ce2cf0b2b990fa4aa0360921aa2b Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Fri, 6 Oct 2017 08:16:37 +0900 Subject: kprobes/docs: Remove jprobes related documents Remove jprobes related documentation from kprobes.txt. Also add some migration advice for the people who are still using jprobes. Signed-off-by: Masami Hiramatsu Cc: Alexei Starovoitov Cc: Ananth N Mavinakayanahalli Cc: Anil S Keshavamurthy Cc: David S . Miller Cc: Ian McDonald Cc: Kees Cook Cc: Linus Torvalds Cc: Paul E . McKenney Cc: Peter Zijlstra Cc: Stephen Hemminger Cc: Steven Rostedt Cc: Thomas Gleixner Cc: Vlad Yasevich Link: http://lkml.kernel.org/r/150724539698.5014.7300022363980503141.stgit@devbox [ Fixes to the new documentation. ] Signed-off-by: Ingo Molnar --- Documentation/kprobes.txt | 159 +++++++++++++++++----------------------------- 1 file changed, 57 insertions(+), 102 deletions(-) (limited to 'Documentation') diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt index 2335715bf471..22208bf2386d 100644 --- a/Documentation/kprobes.txt +++ b/Documentation/kprobes.txt @@ -8,7 +8,7 @@ Kernel Probes (Kprobes) .. CONTENTS - 1. Concepts: Kprobes, Jprobes, Return Probes + 1. Concepts: Kprobes, and Return Probes 2. Architectures Supported 3. Configuring Kprobes 4. API Reference @@ -16,12 +16,12 @@ Kernel Probes (Kprobes) 6. Probe Overhead 7. TODO 8. Kprobes Example - 9. Jprobes Example - 10. Kretprobes Example + 9. Kretprobes Example + 10. Deprecated Features Appendix A: The kprobes debugfs interface Appendix B: The kprobes sysctl interface -Concepts: Kprobes, Jprobes, Return Probes +Concepts: Kprobes and Return Probes ========================================= Kprobes enables you to dynamically break into any kernel routine and @@ -32,12 +32,10 @@ routine to be invoked when the breakpoint is hit. .. [1] some parts of the kernel code can not be trapped, see :ref:`kprobes_blacklist`) -There are currently three types of probes: kprobes, jprobes, and -kretprobes (also called return probes). A kprobe can be inserted -on virtually any instruction in the kernel. A jprobe is inserted at -the entry to a kernel function, and provides convenient access to the -function's arguments. A return probe fires when a specified function -returns. +There are currently two types of probes: kprobes, and kretprobes +(also called return probes). A kprobe can be inserted on virtually +any instruction in the kernel. A return probe fires when a specified +function returns. In the typical case, Kprobes-based instrumentation is packaged as a kernel module. The module's init function installs ("registers") @@ -82,45 +80,6 @@ After the instruction is single-stepped, Kprobes executes the "post_handler," if any, that is associated with the kprobe. Execution then continues with the instruction following the probepoint. -How Does a Jprobe Work? ------------------------ - -A jprobe is implemented using a kprobe that is placed on a function's -entry point. It employs a simple mirroring principle to allow -seamless access to the probed function's arguments. The jprobe -handler routine should have the same signature (arg list and return -type) as the function being probed, and must always end by calling -the Kprobes function jprobe_return(). - -Here's how it works. When the probe is hit, Kprobes makes a copy of -the saved registers and a generous portion of the stack (see below). -Kprobes then points the saved instruction pointer at the jprobe's -handler routine, and returns from the trap. As a result, control -passes to the handler, which is presented with the same register and -stack contents as the probed function. When it is done, the handler -calls jprobe_return(), which traps again to restore the original stack -contents and processor state and switch to the probed function. - -By convention, the callee owns its arguments, so gcc may produce code -that unexpectedly modifies that portion of the stack. This is why -Kprobes saves a copy of the stack and restores it after the jprobe -handler has run. Up to MAX_STACK_SIZE bytes are copied -- e.g., -64 bytes on i386. - -Note that the probed function's args may be passed on the stack -or in registers. The jprobe will work in either case, so long as the -handler's prototype matches that of the probed function. - -Note that in some architectures (e.g.: arm64 and sparc64) the stack -copy is not done, as the actual location of stacked parameters may be -outside of a reasonable MAX_STACK_SIZE value and because that location -cannot be determined by the jprobes code. In this case the jprobes -user must be careful to make certain the calling signature of the -function does not cause parameters to be passed on the stack (e.g.: -more than eight function arguments, an argument of more than sixteen -bytes, or more than 64 bytes of argument data, depending on -architecture). - Return Probes ------------- @@ -245,8 +204,7 @@ Pre-optimization After preparing the detour buffer, Kprobes verifies that none of the following situations exist: -- The probe has either a break_handler (i.e., it's a jprobe) or a - post_handler. +- The probe has a post_handler. - Other instructions in the optimized region are probed. - The probe is disabled. @@ -331,7 +289,7 @@ rejects registering it, if the given address is in the blacklist. Architectures Supported ======================= -Kprobes, jprobes, and return probes are implemented on the following +Kprobes and return probes are implemented on the following architectures: - i386 (Supports jump optimization) @@ -446,27 +404,6 @@ architecture-specific trap number associated with the fault (e.g., on i386, 13 for a general protection fault or 14 for a page fault). Returns 1 if it successfully handled the exception. -register_jprobe ---------------- - -:: - - #include - int register_jprobe(struct jprobe *jp) - -Sets a breakpoint at the address jp->kp.addr, which must be the address -of the first instruction of a function. When the breakpoint is hit, -Kprobes runs the handler whose address is jp->entry. - -The handler should have the same arg list and return type as the probed -function; and just before it returns, it must call jprobe_return(). -(The handler never actually returns, since jprobe_return() returns -control to Kprobes.) If the probed function is declared asmlinkage -or anything else that affects how args are passed, the handler's -declaration must match. - -register_jprobe() returns 0 on success, or a negative errno otherwise. - register_kretprobe ------------------ @@ -513,7 +450,6 @@ unregister_*probe #include void unregister_kprobe(struct kprobe *kp); - void unregister_jprobe(struct jprobe *jp); void unregister_kretprobe(struct kretprobe *rp); Removes the specified probe. The unregister function can be called @@ -532,7 +468,6 @@ register_*probes #include int register_kprobes(struct kprobe **kps, int num); int register_kretprobes(struct kretprobe **rps, int num); - int register_jprobes(struct jprobe **jps, int num); Registers each of the num probes in the specified array. If any error occurs during registration, all probes in the array, up to @@ -555,7 +490,6 @@ unregister_*probes #include void unregister_kprobes(struct kprobe **kps, int num); void unregister_kretprobes(struct kretprobe **rps, int num); - void unregister_jprobes(struct jprobe **jps, int num); Removes each of the num probes in the specified array at once. @@ -574,7 +508,6 @@ disable_*probe #include int disable_kprobe(struct kprobe *kp); int disable_kretprobe(struct kretprobe *rp); - int disable_jprobe(struct jprobe *jp); Temporarily disables the specified ``*probe``. You can enable it again by using enable_*probe(). You must specify the probe which has been registered. @@ -587,7 +520,6 @@ enable_*probe #include int enable_kprobe(struct kprobe *kp); int enable_kretprobe(struct kretprobe *rp); - int enable_jprobe(struct jprobe *jp); Enables ``*probe`` which has been disabled by disable_*probe(). You must specify the probe which has been registered. @@ -595,12 +527,10 @@ the probe which has been registered. Kprobes Features and Limitations ================================ -Kprobes allows multiple probes at the same address. Currently, -however, there cannot be multiple jprobes on the same function at -the same time. Also, a probepoint for which there is a jprobe or -a post_handler cannot be optimized. So if you install a jprobe, -or a kprobe with a post_handler, at an optimized probepoint, the -probepoint will be unoptimized automatically. +Kprobes allows multiple probes at the same address. Also, +a probepoint for which there is a post_handler cannot be optimized. +So if you install a kprobe with a post_handler, at an optimized +probepoint, the probepoint will be unoptimized automatically. In general, you can install a probe anywhere in the kernel. In particular, you can probe interrupt handlers. Known exceptions @@ -662,7 +592,7 @@ We're unaware of other specific cases where this could be a problem. If, upon entry to or exit from a function, the CPU is running on a stack other than that of the current task, registering a return probe on that function may produce undesirable results. For this -reason, Kprobes doesn't support return probes (or kprobes or jprobes) +reason, Kprobes doesn't support return probes (or kprobes) on the x86_64 version of __switch_to(); the registration functions return -EINVAL. @@ -706,24 +636,24 @@ Probe Overhead On a typical CPU in use in 2005, a kprobe hit takes 0.5 to 1.0 microseconds to process. Specifically, a benchmark that hits the same probepoint repeatedly, firing a simple handler each time, reports 1-2 -million hits per second, depending on the architecture. A jprobe or -return-probe hit typically takes 50-75% longer than a kprobe hit. +million hits per second, depending on the architecture. A return-probe +hit typically takes 50-75% longer than a kprobe hit. When you have a return probe set on a function, adding a kprobe at the entry to that function adds essentially no overhead. Here are sample overhead figures (in usec) for different architectures:: - k = kprobe; j = jprobe; r = return probe; kr = kprobe + return probe - on same function; jr = jprobe + return probe on same function:: + k = kprobe; r = return probe; kr = kprobe + return probe + on same function i386: Intel Pentium M, 1495 MHz, 2957.31 bogomips - k = 0.57 usec; j = 1.00; r = 0.92; kr = 0.99; jr = 1.40 + k = 0.57 usec; r = 0.92; kr = 0.99 x86_64: AMD Opteron 246, 1994 MHz, 3971.48 bogomips - k = 0.49 usec; j = 0.76; r = 0.80; kr = 0.82; jr = 1.07 + k = 0.49 usec; r = 0.80; kr = 0.82 ppc64: POWER5 (gr), 1656 MHz (SMT disabled, 1 virtual CPU per physical CPU) - k = 0.77 usec; j = 1.31; r = 1.26; kr = 1.45; jr = 1.99 + k = 0.77 usec; r = 1.26; kr = 1.45 Optimized Probe Overhead ------------------------ @@ -755,11 +685,6 @@ Kprobes Example See samples/kprobes/kprobe_example.c -Jprobes Example -=============== - -See samples/kprobes/jprobe_example.c - Kretprobes Example ================== @@ -772,6 +697,37 @@ For additional information on Kprobes, refer to the following URLs: - http://www-users.cs.umn.edu/~boutcher/kprobes/ - http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115) +Deprecated Features +=================== + +Jprobes is now a deprecated feature. People who are depending on it should +migrate to other tracing features or use older kernels. Please consider to +migrate your tool to one of the following options: + +- Use trace-event to trace target function with arguments. + + trace-event is a low-overhead (and almost no visible overhead if it + is off) statically defined event interface. You can define new events + and trace it via ftrace or any other tracing tools. + + See the following urls: + + - https://lwn.net/Articles/379903/ + - https://lwn.net/Articles/381064/ + - https://lwn.net/Articles/383362/ + +- Use ftrace dynamic events (kprobe event) with perf-probe. + + If you build your kernel with debug info (CONFIG_DEBUG_INFO=y), you can + find which register/stack is assigned to which local variable or arguments + by using perf-probe and set up new event to trace it. + + See following documents: + + - Documentation/trace/kprobetrace.txt + - Documentation/trace/events.txt + - tools/perf/Documentation/perf-probe.txt + The kprobes debugfs interface ============================= @@ -783,14 +739,13 @@ under the /sys/kernel/debug/kprobes/ directory (assuming debugfs is mounted at / /sys/kernel/debug/kprobes/list: Lists all registered probes on the system:: c015d71a k vfs_read+0x0 - c011a316 j do_fork+0x0 c03dedc5 r tcp_v4_rcv+0x0 The first column provides the kernel address where the probe is inserted. -The second column identifies the type of probe (k - kprobe, r - kretprobe -and j - jprobe), while the third column specifies the symbol+offset of -the probe. If the probed function belongs to a module, the module name -is also specified. Following columns show probe status. If the probe is on +The second column identifies the type of probe (k - kprobe and r - kretprobe) +while the third column specifies the symbol+offset of the probe. +If the probed function belongs to a module, the module name is also +specified. Following columns show probe status. If the probe is on a virtual address that is no longer valid (module init sections, module virtual addresses that correspond to modules that've been unloaded), such probes are marked with [GONE]. If the probe is temporarily disabled, -- cgit v1.2.3 From c77d3b8d0ce856836c682617eeaac2ac00164c53 Mon Sep 17 00:00:00 2001 From: Sean Wang Date: Wed, 18 Oct 2017 16:28:42 +0800 Subject: dt-bindings: arm: mediatek: add MT7622 string to the PMIC wrapper doc Signed-off-by: Chenglin Xu Signed-off-by: Sean Wang Acked-by: Rob Herring Signed-off-by: Matthias Brugger --- Documentation/devicetree/bindings/soc/mediatek/pwrap.txt | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt b/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt index 107700d00df4..bf80e3f96f8c 100644 --- a/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt +++ b/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt @@ -19,6 +19,7 @@ IP Pairing Required properties in pwrap device node. - compatible: "mediatek,mt2701-pwrap" for MT2701/7623 SoCs + "mediatek,mt7622-pwrap" for MT7622 SoCs "mediatek,mt8135-pwrap" for MT8135 SoCs "mediatek,mt8173-pwrap" for MT8173 SoCs - interrupts: IRQ for pwrap in SOC @@ -36,9 +37,12 @@ Required properties in pwrap device node. - clocks: Must contain an entry for each entry in clock-names. Optional properities: -- pmic: Mediatek PMIC MFD is the child device of pwrap +- pmic: Using either MediaTek PMIC MFD as the child device of pwrap See the following for child node definitions: Documentation/devicetree/bindings/mfd/mt6397.txt + or the regulator-only device as the child device of pwrap, such as MT6380. + See the following definitions for such kinds of devices. + Documentation/devicetree/bindings/regulator/mt6380-regulator.txt Example: pwrap: pwrap@1000f000 { -- cgit v1.2.3 From 12a8cc7fcf54a8575f094be1e99032ec38aa045c Mon Sep 17 00:00:00 2001 From: Andrey Ryabinin Date: Fri, 29 Sep 2017 17:08:18 +0300 Subject: x86/kasan: Use the same shadow offset for 4- and 5-level paging We are going to support boot-time switching between 4- and 5-level paging. For KASAN it means we cannot have different KASAN_SHADOW_OFFSET for different paging modes: the constant is passed to gcc to generate code and cannot be changed at runtime. This patch changes KASAN code to use 0xdffffc0000000000 as shadow offset for both 4- and 5-level paging. For 5-level paging it means that shadow memory region is not aligned to PGD boundary anymore and we have to handle unaligned parts of the region properly. In addition, we have to exclude paravirt code from KASAN instrumentation as we now use set_pgd() before KASAN is fully ready. [kirill.shutemov@linux.intel.com: clenaup, changelog message] Signed-off-by: Andrey Ryabinin Signed-off-by: Kirill A. Shutemov Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Cyrill Gorcunov Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170929140821.37654-4-kirill.shutemov@linux.intel.com Signed-off-by: Ingo Molnar --- Documentation/x86/x86_64/mm.txt | 2 +- arch/x86/Kconfig | 1 - arch/x86/kernel/Makefile | 3 +- arch/x86/mm/kasan_init_64.c | 101 +++++++++++++++++++++++++++++++--------- 4 files changed, 83 insertions(+), 24 deletions(-) (limited to 'Documentation') diff --git a/Documentation/x86/x86_64/mm.txt b/Documentation/x86/x86_64/mm.txt index b0798e281aa6..3448e675b462 100644 --- a/Documentation/x86/x86_64/mm.txt +++ b/Documentation/x86/x86_64/mm.txt @@ -34,7 +34,7 @@ ff92000000000000 - ffd1ffffffffffff (=54 bits) vmalloc/ioremap space ffd2000000000000 - ffd3ffffffffffff (=49 bits) hole ffd4000000000000 - ffd5ffffffffffff (=49 bits) virtual memory map (512TB) ... unused hole ... -ffd8000000000000 - fff7ffffffffffff (=53 bits) kasan shadow memory (8PB) +ffdf000000000000 - fffffc0000000000 (=53 bits) kasan shadow memory (8PB) ... unused hole ... ffffff0000000000 - ffffff7fffffffff (=39 bits) %esp fixup stacks ... unused hole ... diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 971feac13506..32779beb56e2 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -302,7 +302,6 @@ config ARCH_SUPPORTS_DEBUG_PAGEALLOC config KASAN_SHADOW_OFFSET hex depends on KASAN - default 0xdff8000000000000 if X86_5LEVEL default 0xdffffc0000000000 config HAVE_INTEL_TXT diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index fd0a7895b63f..a97a6b611531 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -24,7 +24,8 @@ endif KASAN_SANITIZE_head$(BITS).o := n KASAN_SANITIZE_dumpstack.o := n KASAN_SANITIZE_dumpstack_$(BITS).o := n -KASAN_SANITIZE_stacktrace.o := n +KASAN_SANITIZE_stacktrace.o := n +KASAN_SANITIZE_paravirt.o := n OBJECT_FILES_NON_STANDARD_head_$(BITS).o := y OBJECT_FILES_NON_STANDARD_relocate_kernel_$(BITS).o := y diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c index bc84b73684b7..fe5760db7b19 100644 --- a/arch/x86/mm/kasan_init_64.c +++ b/arch/x86/mm/kasan_init_64.c @@ -15,6 +15,8 @@ extern struct range pfn_mapped[E820_MAX_ENTRIES]; +static p4d_t tmp_p4d_table[PTRS_PER_P4D] __initdata __aligned(PAGE_SIZE); + static int __init map_range(struct range *range) { unsigned long start; @@ -30,8 +32,10 @@ static void __init clear_pgds(unsigned long start, unsigned long end) { pgd_t *pgd; + /* See comment in kasan_init() */ + unsigned long pgd_end = end & PGDIR_MASK; - for (; start < end; start += PGDIR_SIZE) { + for (; start < pgd_end; start += PGDIR_SIZE) { pgd = pgd_offset_k(start); /* * With folded p4d, pgd_clear() is nop, use p4d_clear() @@ -42,29 +46,61 @@ static void __init clear_pgds(unsigned long start, else pgd_clear(pgd); } + + pgd = pgd_offset_k(start); + for (; start < end; start += P4D_SIZE) + p4d_clear(p4d_offset(pgd, start)); +} + +static inline p4d_t *early_p4d_offset(pgd_t *pgd, unsigned long addr) +{ + unsigned long p4d; + + if (!IS_ENABLED(CONFIG_X86_5LEVEL)) + return (p4d_t *)pgd; + + p4d = __pa_nodebug(pgd_val(*pgd)) & PTE_PFN_MASK; + p4d += __START_KERNEL_map - phys_base; + return (p4d_t *)p4d + p4d_index(addr); +} + +static void __init kasan_early_p4d_populate(pgd_t *pgd, + unsigned long addr, + unsigned long end) +{ + pgd_t pgd_entry; + p4d_t *p4d, p4d_entry; + unsigned long next; + + if (pgd_none(*pgd)) { + pgd_entry = __pgd(_KERNPG_TABLE | __pa_nodebug(kasan_zero_p4d)); + set_pgd(pgd, pgd_entry); + } + + p4d = early_p4d_offset(pgd, addr); + do { + next = p4d_addr_end(addr, end); + + if (!p4d_none(*p4d)) + continue; + + p4d_entry = __p4d(_KERNPG_TABLE | __pa_nodebug(kasan_zero_pud)); + set_p4d(p4d, p4d_entry); + } while (p4d++, addr = next, addr != end && p4d_none(*p4d)); } static void __init kasan_map_early_shadow(pgd_t *pgd) { - int i; - unsigned long start = KASAN_SHADOW_START; + /* See comment in kasan_init() */ + unsigned long addr = KASAN_SHADOW_START & PGDIR_MASK; unsigned long end = KASAN_SHADOW_END; + unsigned long next; - for (i = pgd_index(start); start < end; i++) { - switch (CONFIG_PGTABLE_LEVELS) { - case 4: - pgd[i] = __pgd(__pa_nodebug(kasan_zero_pud) | - _KERNPG_TABLE); - break; - case 5: - pgd[i] = __pgd(__pa_nodebug(kasan_zero_p4d) | - _KERNPG_TABLE); - break; - default: - BUILD_BUG(); - } - start += PGDIR_SIZE; - } + pgd += pgd_index(addr); + do { + next = pgd_addr_end(addr, end); + kasan_early_p4d_populate(pgd, addr, next); + } while (pgd++, addr = next, addr != end); } #ifdef CONFIG_KASAN_INLINE @@ -101,7 +137,7 @@ void __init kasan_early_init(void) for (i = 0; i < PTRS_PER_PUD; i++) kasan_zero_pud[i] = __pud(pud_val); - for (i = 0; CONFIG_PGTABLE_LEVELS >= 5 && i < PTRS_PER_P4D; i++) + for (i = 0; IS_ENABLED(CONFIG_X86_5LEVEL) && i < PTRS_PER_P4D; i++) kasan_zero_p4d[i] = __p4d(p4d_val); kasan_map_early_shadow(early_top_pgt); @@ -117,12 +153,35 @@ void __init kasan_init(void) #endif memcpy(early_top_pgt, init_top_pgt, sizeof(early_top_pgt)); + + /* + * We use the same shadow offset for 4- and 5-level paging to + * facilitate boot-time switching between paging modes. + * As result in 5-level paging mode KASAN_SHADOW_START and + * KASAN_SHADOW_END are not aligned to PGD boundary. + * + * KASAN_SHADOW_START doesn't share PGD with anything else. + * We claim whole PGD entry to make things easier. + * + * KASAN_SHADOW_END lands in the last PGD entry and it collides with + * bunch of things like kernel code, modules, EFI mapping, etc. + * We need to take extra steps to not overwrite them. + */ + if (IS_ENABLED(CONFIG_X86_5LEVEL)) { + void *ptr; + + ptr = (void *)pgd_page_vaddr(*pgd_offset_k(KASAN_SHADOW_END)); + memcpy(tmp_p4d_table, (void *)ptr, sizeof(tmp_p4d_table)); + set_pgd(&early_top_pgt[pgd_index(KASAN_SHADOW_END)], + __pgd(__pa(tmp_p4d_table) | _KERNPG_TABLE)); + } + load_cr3(early_top_pgt); __flush_tlb_all(); - clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END); + clear_pgds(KASAN_SHADOW_START & PGDIR_MASK, KASAN_SHADOW_END); - kasan_populate_zero_shadow((void *)KASAN_SHADOW_START, + kasan_populate_zero_shadow((void *)(KASAN_SHADOW_START & PGDIR_MASK), kasan_mem_to_shadow((void *)PAGE_OFFSET)); for (i = 0; i < E820_MAX_ENTRIES; i++) { -- cgit v1.2.3 From 17c918840fb07e5819f8df03345d7f4a5e5b791c Mon Sep 17 00:00:00 2001 From: Donald Sharp Date: Wed, 18 Oct 2017 10:24:28 -0400 Subject: doc: Update VRF documentation metric Two things: 1) Update examples to show usage of metric 2) Discuss reasoning for using such a high metric. Signed-off-by: Donald Sharp Acked-by: David Ahern Signed-off-by: David S. Miller --- Documentation/networking/vrf.txt | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/vrf.txt b/Documentation/networking/vrf.txt index 3918dae964d4..8ff7b4c8f91b 100644 --- a/Documentation/networking/vrf.txt +++ b/Documentation/networking/vrf.txt @@ -71,7 +71,12 @@ Setup ip ru add iif vrf-blue table 10 3. Set the default route for the table (and hence default route for the VRF). - ip route add table 10 unreachable default + ip route add table 10 unreachable default metric 4278198272 + + This high metric value ensures that the default unreachable route can + be overridden by a routing protocol suite. FRRouting interprets + kernel metrics as a combined admin distance (upper byte) and priority + (lower 3 bytes). Thus the above metric translates to [255/8192]. 4. Enslave L3 interfaces to a VRF device. ip link set dev eth1 master vrf-blue @@ -256,7 +261,7 @@ older form without it. For example: $ ip route show vrf red - prohibit default + unreachable default metric 4278198272 broadcast 10.2.1.0 dev eth1 proto kernel scope link src 10.2.1.2 10.2.1.0/24 dev eth1 proto kernel scope link src 10.2.1.2 local 10.2.1.2 dev eth1 proto kernel scope host src 10.2.1.2 @@ -282,7 +287,7 @@ older form without it. ff00::/8 dev red metric 256 pref medium ff00::/8 dev eth1 metric 256 pref medium ff00::/8 dev eth2 metric 256 pref medium - + unreachable default dev lo metric 4278198272 error -101 pref medium 8. Route Lookup for a VRF @@ -331,7 +336,7 @@ function vrf_create ip link add ${VRF} type vrf table ${TBID} if [ "${VRF}" != "mgmt" ]; then - ip route add table ${TBID} unreachable default + ip route add table ${TBID} unreachable default metric 4278198272 fi ip link set dev ${VRF} up } -- cgit v1.2.3 From 24f0d316fd14c8e61592f580e0075dd3433fde40 Mon Sep 17 00:00:00 2001 From: Leo Yan Date: Tue, 10 Oct 2017 14:32:13 -0600 Subject: doc: coresight: correct usage for disabling idle states In the coresight CPU debug document it suggests to use 'echo' command to set latency request to /dev/cpu_dma_latency so can disable all CPU idle states, but in fact this doesn't work. This is because when the command 'echo' exits, it releases the device node's file descriptor and the kernel release function removes the QoS constraint; finally when the command 'echo' finished there have no constraint imposed on cpu_dma_latency. This patch changes to use 'exec' to access '/dev/cpu_dma_latency', the command 'exec' can avoid the file descriptor to be closed so we can keep the constraint on cpu_dma_latency. This patch also adds the info for reference docs for PM QoS and cpuidle sysfs. Cc: Jonathan Corbet Cc: Sudeep Holla Reported-by: Kim Phillips Suggested-by: Mathieu Poirier Signed-off-by: Leo Yan Signed-off-by: Mathieu Poirier Signed-off-by: Greg Kroah-Hartman --- Documentation/trace/coresight-cpu-debug.txt | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/trace/coresight-cpu-debug.txt b/Documentation/trace/coresight-cpu-debug.txt index b3da1f90b861..2b9b51cd501e 100644 --- a/Documentation/trace/coresight-cpu-debug.txt +++ b/Documentation/trace/coresight-cpu-debug.txt @@ -149,11 +149,23 @@ If you want to limit idle states at boot time, you can use "nohlt" or At the runtime you can disable idle states with below methods: -Set latency request to /dev/cpu_dma_latency to disable all CPUs specific idle -states (if latency = 0uS then disable all idle states): -# echo "what_ever_latency_you_need_in_uS" > /dev/cpu_dma_latency - -Disable specific CPU's specific idle state: +It is possible to disable CPU idle states by way of the PM QoS +subsystem, more specifically by using the "/dev/cpu_dma_latency" +interface (see Documentation/power/pm_qos_interface.txt for more +details). As specified in the PM QoS documentation the requested +parameter will stay in effect until the file descriptor is released. +For example: + +# exec 3<> /dev/cpu_dma_latency; echo 0 >&3 +... +Do some work... +... +# exec 3<>- + +The same can also be done from an application program. + +Disable specific CPU's specific idle state from cpuidle sysfs (see +Documentation/cpuidle/sysfs.txt): # echo 1 > /sys/devices/system/cpu/cpu$cpu/cpuidle/state$state/disable -- cgit v1.2.3 From 7a15cf2af480440bacf2fc0010f1fa1a1f3980d6 Mon Sep 17 00:00:00 2001 From: Romain Perier Date: Mon, 9 Oct 2017 15:26:38 +0200 Subject: nvmem: rockchip: add support for RK3368 This adds the necessary function for handling support on RK3368 SoCs Signed-off-by: Romain Perier Acked-by: Rob Herring Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt | 1 + drivers/nvmem/rockchip-efuse.c | 4 ++++ 2 files changed, 5 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt index 1ff02afdc55a..60bec4782806 100644 --- a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt +++ b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.txt @@ -6,6 +6,7 @@ Required properties: - "rockchip,rk3188-efuse" - for RK3188 SoCs. - "rockchip,rk3228-efuse" - for RK3228 SoCs. - "rockchip,rk3288-efuse" - for RK3288 SoCs. + - "rockchip,rk3368-efuse" - for RK3368 SoCs. - "rockchip,rk3399-efuse" - for RK3399 SoCs. - reg: Should contain the registers location and exact eFuse size - clocks: Should be the clock id of eFuse diff --git a/drivers/nvmem/rockchip-efuse.c b/drivers/nvmem/rockchip-efuse.c index 63e3eb55f3ac..eb4c530c2564 100644 --- a/drivers/nvmem/rockchip-efuse.c +++ b/drivers/nvmem/rockchip-efuse.c @@ -177,6 +177,10 @@ static const struct of_device_id rockchip_efuse_match[] = { .compatible = "rockchip,rk3288-efuse", .data = (void *)&rockchip_rk3288_efuse_read, }, + { + .compatible = "rockchip,rk3368-efuse", + .data = (void *)&rockchip_rk3288_efuse_read, + }, { .compatible = "rockchip,rk3399-efuse", .data = (void *)&rockchip_rk3399_efuse_read, -- cgit v1.2.3 From 41e043498978ad3c8d5a70613f41195faf09663f Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Mon, 9 Oct 2017 15:26:39 +0200 Subject: dt-bindings: nvmem: Describe the Amlogic Meson6/Meson8/Meson8b efuse Amlogic Meson6, Meson8 and Meson8b SoCs have an efuse which contains calibration data from the factory (for the internal temperature sensor and some CVBS connector settings). Some manufacturers also store the MAC address or serial number in the efuse. This documents the devicetree bindings for the efuse on these SoCs. Signed-off-by: Martin Blumenstingl Signed-off-by: Srinivas Kandagatla Acked-by: Rob Herring Signed-off-by: Greg Kroah-Hartman --- .../bindings/nvmem/amlogic-meson-mx-efuse.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/amlogic-meson-mx-efuse.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/nvmem/amlogic-meson-mx-efuse.txt b/Documentation/devicetree/bindings/nvmem/amlogic-meson-mx-efuse.txt new file mode 100644 index 000000000000..a3c63954a1a4 --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/amlogic-meson-mx-efuse.txt @@ -0,0 +1,22 @@ +Amlogic Meson6/Meson8/Meson8b efuse + +Required Properties: +- compatible: depending on the SoC this should be one of: + - "amlogic,meson6-efuse" + - "amlogic,meson8-efuse" + - "amlogic,meson8b-efuse" +- reg: base address and size of the efuse registers +- clocks: a reference to the efuse core gate clock +- clock-names: must be "core" + +All properties and sub-nodes as well as the consumer bindings +defined in nvmem.txt in this directory are also supported. + + +Example: + efuse: nvmem@0 { + compatible = "amlogic,meson8-efuse"; + reg = <0x0 0x2000>; + clocks = <&clkc CLKID_EFUSE>; + clock-names = "core"; + }; -- cgit v1.2.3 From 9593ad32b8be82f3abd6002336a93c405361b9fd Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Mon, 9 Oct 2017 15:26:40 +0200 Subject: nvmem: meson-efuse: indicate that this driver is only for Meson GX SoCs The current Amlogic Meson eFuse driver only supports the 64-bit SoCs (GXBB and newer). Older SoCs cannot be supported by the same driver because they do not use the meson secure monitor firmware to access the hardware. Signed-off-by: Martin Blumenstingl Signed-off-by: Srinivas Kandagatla Acked-by: Rob Herring Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/nvmem/amlogic-efuse.txt | 2 +- drivers/nvmem/Kconfig | 4 ++-- drivers/nvmem/meson-efuse.c | 4 ++-- 3 files changed, 5 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/nvmem/amlogic-efuse.txt b/Documentation/devicetree/bindings/nvmem/amlogic-efuse.txt index fafd85bd67a6..e3298e18de26 100644 --- a/Documentation/devicetree/bindings/nvmem/amlogic-efuse.txt +++ b/Documentation/devicetree/bindings/nvmem/amlogic-efuse.txt @@ -1,4 +1,4 @@ -= Amlogic eFuse device tree bindings = += Amlogic Meson GX eFuse device tree bindings = Required properties: - compatible: should be "amlogic,meson-gxbb-efuse" diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig index ea3044c5d6ee..2a07cf169b52 100644 --- a/drivers/nvmem/Kconfig +++ b/drivers/nvmem/Kconfig @@ -135,11 +135,11 @@ config NVMEM_VF610_OCOTP be called nvmem-vf610-ocotp. config MESON_EFUSE - tristate "Amlogic eFuse Support" + tristate "Amlogic Meson GX eFuse Support" depends on (ARCH_MESON || COMPILE_TEST) && MESON_SM help This is a driver to retrieve specific values from the eFuse found on - the Amlogic Meson SoCs. + the Amlogic Meson GX SoCs. This driver can also be built as a module. If so, the module will be called nvmem_meson_efuse. diff --git a/drivers/nvmem/meson-efuse.c b/drivers/nvmem/meson-efuse.c index 70bfc9839bb2..1ea3cd24a508 100644 --- a/drivers/nvmem/meson-efuse.c +++ b/drivers/nvmem/meson-efuse.c @@ -1,5 +1,5 @@ /* - * Amlogic eFuse Driver + * Amlogic Meson GX eFuse Driver * * Copyright (c) 2016 Endless Computers, Inc. * Author: Carlo Caione @@ -89,5 +89,5 @@ static struct platform_driver meson_efuse_driver = { module_platform_driver(meson_efuse_driver); MODULE_AUTHOR("Carlo Caione "); -MODULE_DESCRIPTION("Amlogic Meson NVMEM driver"); +MODULE_DESCRIPTION("Amlogic Meson GX NVMEM driver"); MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From f6755643d62e14c55c2f864a7995fd8001ae3f51 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 11 Oct 2017 15:50:13 +0200 Subject: dt-bindings: PCI: rcar: Correct example to match reality Correct the USB subnodes in the example, as in f7d569c1e6a6 ("ARM: dts: r8a779x: Fix PCI bus dtc warnings"). 1. Drop the bogus 'device_type = "pci"' properties, 2. Correct the unit addresses. Update other bits in the example to match real use: 1. Rename the USB subnodes from "pci" to "usb", 2. Update the "phys" property. Signed-off-by: Geert Uytterhoeven Signed-off-by: Bjorn Helgaas Acked-by: Sergei Shtylyov Acked-by: Rob Herring --- Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt index 3d038638612b..9fe7e12a7bf3 100644 --- a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt +++ b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt @@ -60,17 +60,15 @@ Example SoC configuration: 0x0800 0 0 1 &gic 0 108 IRQ_TYPE_LEVEL_HIGH 0x1000 0 0 2 &gic 0 108 IRQ_TYPE_LEVEL_HIGH>; - pci@0,1 { + usb@1,0 { reg = <0x800 0 0 0 0>; - device_type = "pci"; - phys = <&usbphy 0 0>; + phys = <&usb0 0>; phy-names = "usb"; }; - pci@0,2 { + usb@2,0 { reg = <0x1000 0 0 0 0>; - device_type = "pci"; - phys = <&usbphy 0 0>; + phys = <&usb0 0>; phy-names = "usb"; }; }; -- cgit v1.2.3 From d92f842bb30f52beedad63a4a850b39ca0dbc45f Mon Sep 17 00:00:00 2001 From: Scott Tsai Date: Wed, 20 Sep 2017 02:16:00 +0800 Subject: memory-barriers.txt: Fix typo in pairing example In the "general barrier pairing with implicit control depdendency" example, the last write by CPU 1 was meant to change variable x and not y. The example would be pretty uninteresting if no CPU ever changes x and the variable was initialized to zero. Signed-off-by: Scott Tsai Signed-off-by: Paul E. McKenney --- Documentation/memory-barriers.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt index 7deee1441640..f37375544d71 100644 --- a/Documentation/memory-barriers.txt +++ b/Documentation/memory-barriers.txt @@ -947,7 +947,7 @@ Or even: =============== =============================== r1 = READ_ONCE(y); - WRITE_ONCE(y, 1); if (r2 = READ_ONCE(x)) { + WRITE_ONCE(x, 1); if (r2 = READ_ONCE(x)) { WRITE_ONCE(y, 1); } -- cgit v1.2.3 From 5692fcc671ac8a10bfd0e75d52f0259fe767b56c Mon Sep 17 00:00:00 2001 From: "Guilherme G. Piccoli" Date: Thu, 21 Sep 2017 16:29:01 -0300 Subject: doc: Rewrite confusing statement about memory barriers The "Write (or store) memory barriers" bullet of the "Variety of memory barriers" section, calls out a sequential order of stores, which is confusing since sequential ordering is not guaranteed. This commit therefore rewords to avoid mentioning a sequence of stores to clarify the intent. Cc: Paul E. McKenney Signed-off-by: Guilherme G. Piccoli Signed-off-by: Paul E. McKenney --- Documentation/memory-barriers.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt index f37375544d71..519940ec767f 100644 --- a/Documentation/memory-barriers.txt +++ b/Documentation/memory-barriers.txt @@ -383,8 +383,8 @@ Memory barriers come in four basic varieties: to have any effect on loads. A CPU can be viewed as committing a sequence of store operations to the - memory system as time progresses. All stores before a write barrier will - occur in the sequence _before_ all the stores after the write barrier. + memory system as time progresses. All stores _before_ a write barrier + will occur _before_ all the stores after the write barrier. [!] Note that write barriers should normally be paired with read or data dependency barriers; see the "SMP barrier pairing" subsection. -- cgit v1.2.3 From b92ca54eb563df0d1963d2a4f5cac1713c581a8a Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Fri, 20 Oct 2017 18:15:26 +0100 Subject: Documentation: Add Arm Ltd to kernel-enforcement-statement.rst Adding a couple of names on behalf of Arm Ltd. Acked-by: Marc Zyngier Signed-off-by: Catalin Marinas Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index b2ae0405ccc0..3f884ebfb844 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -113,6 +113,7 @@ we might work for today, have in the past, or will in the future. - Shaohua Li - Xin Long - Tony Luck + - Catalin Marinas (Arm Ltd) - Mike Marshall - Chris Mason - Paul E. McKenney @@ -150,3 +151,4 @@ we might work for today, have in the past, or will in the future. - Wei Yongjun - Lv Zheng - Eduardo Valentin + - Marc Zyngier (Arm Ltd) -- cgit v1.2.3 From 14f0e5f8d97e632695d92f41f2e91d10d8005d47 Mon Sep 17 00:00:00 2001 From: Olivier Moysan Date: Thu, 19 Oct 2017 15:03:17 +0200 Subject: ASoC: stm32: Add synchronization to SAI bindings Add synchronization configuration to STM32 SAI bindings. This patch also adds peripheral clock which is required to access synchronization register. Signed-off-by: Olivier Moysan Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/st,stm32-sai.txt | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/st,stm32-sai.txt b/Documentation/devicetree/bindings/sound/st,stm32-sai.txt index f1c5ae59e7c9..1f9cd7095337 100644 --- a/Documentation/devicetree/bindings/sound/st,stm32-sai.txt +++ b/Documentation/devicetree/bindings/sound/st,stm32-sai.txt @@ -10,13 +10,21 @@ Required properties: - reg: Base address and size of SAI common register set. - clocks: Must contain phandle and clock specifier pairs for each entry in clock-names. - - clock-names: Must contain "x8k" and "x11k" + - clock-names: Must contain "pclk" "x8k" and "x11k" + "pclk": Clock which feeds the peripheral bus interface. + Mandatory for "st,stm32h7-sai" compatible. + Not used for "st,stm32f4-sai" compatible. "x8k": SAI parent clock for sampling rates multiple of 8kHz. "x11k": SAI parent clock for sampling rates multiple of 11.025kHz. - interrupts: cpu DAI interrupt line shared by SAI sub-blocks Optional properties: - resets: Reference to a reset controller asserting the SAI + - st,sync: specify synchronization mode. + By default SAI sub-block is in asynchronous mode. + This property sets SAI sub-block as slave of another SAI sub-block. + Must contain the phandle and index of the sai sub-block providing + the synchronization. SAI subnodes: Two subnodes corresponding to SAI sub-block instances A et B can be defined. @@ -52,8 +60,8 @@ sai1: sai1@40015800 { #size-cells = <1>; ranges = <0 0x40015800 0x400>; reg = <0x40015800 0x4>; - clocks = <&rcc PLL1_Q>, <&rcc PLL2_P>; - clock-names = "x8k", "x11k"; + clocks = <&rcc SAI1_CK>, <&rcc PLL1_Q>, <&rcc PLL2_P>; + clock-names = "pclk", "x8k", "x11k"; interrupts = <87>; sai1a: audio-controller@40015804 { -- cgit v1.2.3 From 05c006145054a86430ed4fdd4f8c1b4139a44bee Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 17 Oct 2017 06:57:19 +0000 Subject: ASoC: audio-graph-scu-card: add missing Capture routing on Example Both cases have 1 Capture path. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt b/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt index 8b8afe9fcb31..a10daf54aa0c 100644 --- a/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt +++ b/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt @@ -43,7 +43,8 @@ Example 1. Sampling Rate Conversion label = "sound-card"; prefix = "codec"; routing = "codec Playback", "DAI0 Playback", - "codec Playback", "DAI1 Playback"; + "codec Playback", "DAI1 Playback", + "DAI0 Capture", "codec Capture"; convert-rate = <48000>; dais = <&cpu_port>; @@ -79,7 +80,8 @@ Example 2. 2 CPU 1 Codec (Mixing) label = "sound-card"; prefix = "codec"; routing = "codec Playback", "DAI0 Playback", - "codec Playback", "DAI1 Playback"; + "codec Playback", "DAI1 Playback", + "DAI0 Capture", "codec Capture"; convert-rate = <48000>; dais = <&cpu_port0 -- cgit v1.2.3 From 86d5b2c20d8ec255ef7646533b81dabc935e0eff Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 17 Oct 2017 06:57:49 +0000 Subject: ASoC: audio-graph-scu-card: remove unnecessary route patch from Example 1 Example 1 is for "Sampling Rate Conversion", sample has only 1 CPU, 1 Codec. Thus, "codec Playback", "DAI1 Playback" route is unnecessary. Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt | 1 - 1 file changed, 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt b/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt index a10daf54aa0c..441dd6f29df1 100644 --- a/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt +++ b/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt @@ -43,7 +43,6 @@ Example 1. Sampling Rate Conversion label = "sound-card"; prefix = "codec"; routing = "codec Playback", "DAI0 Playback", - "codec Playback", "DAI1 Playback", "DAI0 Capture", "codec Capture"; convert-rate = <48000>; -- cgit v1.2.3 From 7e95d9134e3851de57075254737bc434462bb293 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 19 Oct 2017 01:18:57 +0200 Subject: PM: docs: Fix formatting typo in devices.rst There is one word too many under formatting markup in one place in device.rst, so fix it. Signed-off-by: Rafael J. Wysocki --- Documentation/driver-api/pm/devices.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst index a0dc2879a152..b8f1e3bdb743 100644 --- a/Documentation/driver-api/pm/devices.rst +++ b/Documentation/driver-api/pm/devices.rst @@ -274,7 +274,7 @@ sleep states and the hibernation state ("suspend-to-disk"). Each phase involves executing callbacks for every device before the next phase begins. Not all buses or classes support all these callbacks and not all drivers use all the callbacks. The various phases always run after tasks have been frozen and -before they are unfrozen. Furthermore, the ``*_noirq phases`` run at a time +before they are unfrozen. Furthermore, the ``*_noirq`` phases run at a time when IRQ handlers have been disabled (except for those marked with the IRQF_NO_SUSPEND flag). -- cgit v1.2.3 From 191643403b770d6adbc10a5bb5ed539845e9d1ad Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sat, 21 Oct 2017 17:01:49 +0200 Subject: Documentation: kernel-enforcement-statement.rst: proper sort names Eduardo was not in the correct alphabetical order, and Ivan was somehow listed twice, so fix these sorting issues up. Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index 3f884ebfb844..ba8c525eeee1 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -130,7 +130,6 @@ we might work for today, have in the past, or will in the future. - Leon Romanovsky - Steven Rostedt (VMware) - Ivan Safonov - - Ivan Safonov - Anna Schumaker - Jes Sorensen - K.Y. Srinivasan @@ -141,6 +140,7 @@ we might work for today, have in the past, or will in the future. - Thierry Reding - Rik van Riel - Geert Uytterhoeven (Glider bvba) + - Eduardo Valentin (Amazon.com) - Daniel Vetter - Linus Walleij - Richard Weinberger @@ -150,5 +150,4 @@ we might work for today, have in the past, or will in the future. - Masahiro Yamada - Wei Yongjun - Lv Zheng - - Eduardo Valentin - Marc Zyngier (Arm Ltd) -- cgit v1.2.3 From 930cc2d27847a4235bb3dc1e3817504dcf230dcb Mon Sep 17 00:00:00 2001 From: Lukas Wunner Date: Tue, 17 Oct 2017 12:42:00 +0200 Subject: dt-bindings: iio: dac: ti-dac082s085: Document new driver Add device tree bindings for Texas Instruments 8/10/12-bit 2/4-channel DAC driver. Cc: Mathias Duckeck Acked-by: Rob Herring Signed-off-by: Lukas Wunner Signed-off-by: Jonathan Cameron --- .../devicetree/bindings/iio/dac/ti-dac082s085.txt | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/dac/ti-dac082s085.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/dac/ti-dac082s085.txt b/Documentation/devicetree/bindings/iio/dac/ti-dac082s085.txt new file mode 100644 index 000000000000..9cb0e10df704 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/ti-dac082s085.txt @@ -0,0 +1,34 @@ +Texas Instruments 8/10/12-bit 2/4-channel DAC driver + +Required properties: + - compatible: Must be one of: + "ti,dac082s085" + "ti,dac102s085" + "ti,dac122s085" + "ti,dac084s085" + "ti,dac104s085" + "ti,dac124s085" + - reg: Chip select number. + - spi-cpha, spi-cpol: SPI mode (0,1) or (1,0) must be used, so specify + either spi-cpha or spi-cpol (but not both). + - vref-supply: Phandle to the external reference voltage supply. + +For other required and optional properties of SPI slave nodes please refer to +../../spi/spi-bus.txt. + +Example: + vref_2v5_reg: regulator-vref { + compatible = "regulator-fixed"; + regulator-name = "2v5"; + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <2500000>; + regulator-always-on; + }; + + dac@0 { + compatible = "ti,dac082s085"; + reg = <0>; + spi-max-frequency = <40000000>; + spi-cpol; + vref-supply = <&vref_2v5_reg>; + }; -- cgit v1.2.3 From 61011264c1afd8c075fb9028ccc78e7f2e63ce48 Mon Sep 17 00:00:00 2001 From: Lukas Wunner Date: Tue, 17 Oct 2017 12:42:00 +0200 Subject: iio: dac: Add Texas Instruments 8/10/12-bit 2/4-channel DAC driver The DACrrcS085 (rr = 08/10/12, c = 2/4) family of SPI DACs was inherited by TI when they acquired National Semiconductor in 2011. This driver was developed for and tested with the DAC082S085 built into the Revolution Pi by KUNBUS, but should work with any of the other chips as they share the same programming interface. There is also a family of I2C DACs with just a single channel called DACrr1C08x (rr = 08/10/12, x = 1/5). Their programming interface is very similar and it should be possible to extend the driver for these chips with moderate effort. Alternatively they could be integrated into ad5446.c. (The AD5301/AD5311/AD5321 use different power-down modes but otherwise appear to be comparable.) Furthermore there is a family of 8-channel DACs called DACrr8S085 (rr = 08/10/12) as well as two 16-bit DACs called DAC161Sxxx (xxx = 055/997). These are more complicated devices with support for daisy-chaining and the ability to power down each channel separately. They could either be handled by a separate driver or integrated into the present driver with a larger effort. Cc: Mathias Duckeck Signed-off-by: Lukas Wunner Signed-off-by: Jonathan Cameron --- Documentation/ABI/testing/sysfs-bus-iio | 1 + drivers/iio/dac/Kconfig | 10 + drivers/iio/dac/Makefile | 1 + drivers/iio/dac/ti-dac082s085.c | 351 ++++++++++++++++++++++++++++++++ 4 files changed, 363 insertions(+) create mode 100644 drivers/iio/dac/ti-dac082s085.c (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 3fc79185cc56..2e3f919485f4 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -522,6 +522,7 @@ Description: Specifies the output powerdown mode. DAC output stage is disconnected from the amplifier and 1kohm_to_gnd: connected to ground via an 1kOhm resistor, + 2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor, 6kohm_to_gnd: connected to ground via a 6kOhm resistor, 20kohm_to_gnd: connected to ground via a 20kOhm resistor, 90kohm_to_gnd: connected to ground via a 90kOhm resistor, diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig index d187233dec3a..965d5c0d2468 100644 --- a/drivers/iio/dac/Kconfig +++ b/drivers/iio/dac/Kconfig @@ -310,6 +310,16 @@ config STM32_DAC config STM32_DAC_CORE tristate +config TI_DAC082S085 + tristate "Texas Instruments 8/10/12-bit 2/4-channel DAC driver" + depends on SPI_MASTER + help + Driver for the Texas Instruments (formerly National Semiconductor) + DAC082S085, DAC102S085, DAC122S085, DAC084S085, DAC104S085 and + DAC124S085. + + If compiled as a module, it will be called ti-dac082s085. + config VF610_DAC tristate "Vybrid vf610 DAC driver" depends on OF diff --git a/drivers/iio/dac/Makefile b/drivers/iio/dac/Makefile index 8fe5af231698..4785858e04cc 100644 --- a/drivers/iio/dac/Makefile +++ b/drivers/iio/dac/Makefile @@ -33,4 +33,5 @@ obj-$(CONFIG_MCP4725) += mcp4725.o obj-$(CONFIG_MCP4922) += mcp4922.o obj-$(CONFIG_STM32_DAC_CORE) += stm32-dac-core.o obj-$(CONFIG_STM32_DAC) += stm32-dac.o +obj-$(CONFIG_TI_DAC082S085) += ti-dac082s085.o obj-$(CONFIG_VF610_DAC) += vf610_dac.o diff --git a/drivers/iio/dac/ti-dac082s085.c b/drivers/iio/dac/ti-dac082s085.c new file mode 100644 index 000000000000..feac1db592af --- /dev/null +++ b/drivers/iio/dac/ti-dac082s085.c @@ -0,0 +1,351 @@ +/* + * ti-dac082s085.c - Texas Instruments 8/10/12-bit 2/4-channel DAC driver + * + * Copyright (C) 2017 KUNBUS GmbH + * + * http://www.ti.com/lit/ds/symlink/dac082s085.pdf + * http://www.ti.com/lit/ds/symlink/dac102s085.pdf + * http://www.ti.com/lit/ds/symlink/dac122s085.pdf + * http://www.ti.com/lit/ds/symlink/dac084s085.pdf + * http://www.ti.com/lit/ds/symlink/dac104s085.pdf + * http://www.ti.com/lit/ds/symlink/dac124s085.pdf + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (version 2) as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include + +/** + * struct ti_dac_chip - TI DAC chip + * @lock: protects write sequences + * @vref: regulator generating Vref + * @mesg: SPI message to perform a write + * @xfer: SPI transfer used by @mesg + * @val: cached value of each output + * @powerdown: whether the chip is powered down + * @powerdown_mode: selected by the user + * @resolution: resolution of the chip + * @buf: buffer for @xfer + */ +struct ti_dac_chip { + struct mutex lock; + struct regulator *vref; + struct spi_message mesg; + struct spi_transfer xfer; + u16 val[4]; + bool powerdown; + u8 powerdown_mode; + u8 resolution; + u8 buf[2] ____cacheline_aligned; +}; + +#define WRITE_NOT_UPDATE(chan) (0x00 | (chan) << 6) +#define WRITE_AND_UPDATE(chan) (0x10 | (chan) << 6) +#define WRITE_ALL_UPDATE 0x20 +#define POWERDOWN(mode) (0x30 | ((mode) + 1) << 6) + +static int ti_dac_cmd(struct ti_dac_chip *ti_dac, u8 cmd, u16 val) +{ + u8 shift = 12 - ti_dac->resolution; + + ti_dac->buf[0] = cmd | (val >> (8 - shift)); + ti_dac->buf[1] = (val << shift) & 0xff; + return spi_sync(ti_dac->mesg.spi, &ti_dac->mesg); +} + +static const char * const ti_dac_powerdown_modes[] = { + "2.5kohm_to_gnd", "100kohm_to_gnd", "three_state", +}; + +static int ti_dac_get_powerdown_mode(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan) +{ + struct ti_dac_chip *ti_dac = iio_priv(indio_dev); + + return ti_dac->powerdown_mode; +} + +static int ti_dac_set_powerdown_mode(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, + unsigned int mode) +{ + struct ti_dac_chip *ti_dac = iio_priv(indio_dev); + int ret = 0; + + if (ti_dac->powerdown_mode == mode) + return 0; + + mutex_lock(&ti_dac->lock); + if (ti_dac->powerdown) { + ret = ti_dac_cmd(ti_dac, POWERDOWN(mode), 0); + if (ret) + goto out; + } + ti_dac->powerdown_mode = mode; + +out: + mutex_unlock(&ti_dac->lock); + return ret; +} + +static const struct iio_enum ti_dac_powerdown_mode = { + .items = ti_dac_powerdown_modes, + .num_items = ARRAY_SIZE(ti_dac_powerdown_modes), + .get = ti_dac_get_powerdown_mode, + .set = ti_dac_set_powerdown_mode, +}; + +static ssize_t ti_dac_read_powerdown(struct iio_dev *indio_dev, + uintptr_t private, + const struct iio_chan_spec *chan, + char *buf) +{ + struct ti_dac_chip *ti_dac = iio_priv(indio_dev); + + return sprintf(buf, "%d\n", ti_dac->powerdown); +} + +static ssize_t ti_dac_write_powerdown(struct iio_dev *indio_dev, + uintptr_t private, + const struct iio_chan_spec *chan, + const char *buf, size_t len) +{ + struct ti_dac_chip *ti_dac = iio_priv(indio_dev); + bool powerdown; + int ret; + + ret = strtobool(buf, &powerdown); + if (ret) + return ret; + + if (ti_dac->powerdown == powerdown) + return len; + + mutex_lock(&ti_dac->lock); + if (powerdown) + ret = ti_dac_cmd(ti_dac, POWERDOWN(ti_dac->powerdown_mode), 0); + else + ret = ti_dac_cmd(ti_dac, WRITE_AND_UPDATE(0), ti_dac->val[0]); + if (!ret) + ti_dac->powerdown = powerdown; + mutex_unlock(&ti_dac->lock); + + return ret ? ret : len; +} + +static const struct iio_chan_spec_ext_info ti_dac_ext_info[] = { + { + .name = "powerdown", + .read = ti_dac_read_powerdown, + .write = ti_dac_write_powerdown, + .shared = IIO_SHARED_BY_TYPE, + }, + IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE, &ti_dac_powerdown_mode), + IIO_ENUM_AVAILABLE("powerdown_mode", &ti_dac_powerdown_mode), + { }, +}; + +#define TI_DAC_CHANNEL(chan) { \ + .type = IIO_VOLTAGE, \ + .channel = (chan), \ + .address = (chan), \ + .indexed = true, \ + .output = true, \ + .datasheet_name = (const char[]){ 'A' + (chan), 0 }, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \ + .ext_info = ti_dac_ext_info, \ +} + +static const struct iio_chan_spec ti_dac_channels[] = { + TI_DAC_CHANNEL(0), + TI_DAC_CHANNEL(1), + TI_DAC_CHANNEL(2), + TI_DAC_CHANNEL(3), +}; + +static int ti_dac_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct ti_dac_chip *ti_dac = iio_priv(indio_dev); + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + *val = ti_dac->val[chan->channel]; + ret = IIO_VAL_INT; + break; + + case IIO_CHAN_INFO_SCALE: + ret = regulator_get_voltage(ti_dac->vref); + if (ret < 0) + return ret; + + *val = ret / 1000; + *val2 = ti_dac->resolution; + ret = IIO_VAL_FRACTIONAL_LOG2; + break; + + default: + ret = -EINVAL; + } + + return ret; +} + +static int ti_dac_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct ti_dac_chip *ti_dac = iio_priv(indio_dev); + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + if (ti_dac->val[chan->channel] == val) + return 0; + + if (val >= (1 << ti_dac->resolution) || val < 0) + return -EINVAL; + + if (ti_dac->powerdown) + return -EBUSY; + + mutex_lock(&ti_dac->lock); + ret = ti_dac_cmd(ti_dac, WRITE_AND_UPDATE(chan->channel), val); + if (!ret) + ti_dac->val[chan->channel] = val; + mutex_unlock(&ti_dac->lock); + break; + + default: + ret = -EINVAL; + } + + return ret; +} + +static int ti_dac_write_raw_get_fmt(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, long mask) +{ + return IIO_VAL_INT; +} + +static const struct iio_info ti_dac_info = { + .read_raw = ti_dac_read_raw, + .write_raw = ti_dac_write_raw, + .write_raw_get_fmt = ti_dac_write_raw_get_fmt, +}; + +static int ti_dac_probe(struct spi_device *spi) +{ + struct device *dev = &spi->dev; + struct ti_dac_chip *ti_dac; + struct iio_dev *indio_dev; + int ret; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*ti_dac)); + if (!indio_dev) + return -ENOMEM; + + indio_dev->dev.parent = dev; + indio_dev->info = &ti_dac_info; + indio_dev->name = spi->modalias; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->channels = ti_dac_channels; + spi_set_drvdata(spi, indio_dev); + + ti_dac = iio_priv(indio_dev); + ti_dac->xfer.tx_buf = &ti_dac->buf; + ti_dac->xfer.len = sizeof(ti_dac->buf); + spi_message_init_with_transfers(&ti_dac->mesg, &ti_dac->xfer, 1); + ti_dac->mesg.spi = spi; + + ret = sscanf(spi->modalias, "dac%2hhu%1d", + &ti_dac->resolution, &indio_dev->num_channels); + WARN_ON(ret != 2); + + ti_dac->vref = devm_regulator_get(dev, "vref"); + if (IS_ERR(ti_dac->vref)) + return PTR_ERR(ti_dac->vref); + + ret = regulator_enable(ti_dac->vref); + if (ret < 0) + return ret; + + mutex_init(&ti_dac->lock); + + ret = ti_dac_cmd(ti_dac, WRITE_ALL_UPDATE, 0); + if (ret) { + dev_err(dev, "failed to initialize outputs to 0\n"); + goto err; + } + + ret = iio_device_register(indio_dev); + if (ret) + goto err; + + return 0; + +err: + mutex_destroy(&ti_dac->lock); + regulator_disable(ti_dac->vref); + return ret; +} + +static int ti_dac_remove(struct spi_device *spi) +{ + struct iio_dev *indio_dev = spi_get_drvdata(spi); + struct ti_dac_chip *ti_dac = iio_priv(indio_dev); + + iio_device_unregister(indio_dev); + mutex_destroy(&ti_dac->lock); + regulator_disable(ti_dac->vref); + + return 0; +} + +#ifdef CONFIG_OF +static const struct of_device_id ti_dac_of_id[] = { + { .compatible = "ti,dac082s085" }, + { .compatible = "ti,dac102s085" }, + { .compatible = "ti,dac122s085" }, + { .compatible = "ti,dac084s085" }, + { .compatible = "ti,dac104s085" }, + { .compatible = "ti,dac124s085" }, + { } +}; +MODULE_DEVICE_TABLE(of, ti_dac_of_id); +#endif + +static const struct spi_device_id ti_dac_spi_id[] = { + { "dac082s085" }, + { "dac102s085" }, + { "dac122s085" }, + { "dac084s085" }, + { "dac104s085" }, + { "dac124s085" }, + { } +}; +MODULE_DEVICE_TABLE(spi, ti_dac_spi_id); + +static struct spi_driver ti_dac_driver = { + .driver = { + .name = "ti-dac082s085", + .of_match_table = of_match_ptr(ti_dac_of_id), + }, + .probe = ti_dac_probe, + .remove = ti_dac_remove, + .id_table = ti_dac_spi_id, +}; +module_spi_driver(ti_dac_driver); + +MODULE_AUTHOR("Lukas Wunner "); +MODULE_DESCRIPTION("Texas Instruments 8/10/12-bit 2/4-channel DAC driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From 2501ec14048d24d98651d2204cdf9cb33a127199 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Tue, 10 Oct 2017 22:08:55 -0700 Subject: dt-binding: soc: qcom: Add binding for rmtfs memory This adds the binding for describing shared memory used to exchange file system blocks between the RMTFS client and service. A client for this is generally found in the modem firmware and is used for accessing persistent storage for things such as radio calibration. Acked-by: Rob Herring Signed-off-by: Bjorn Andersson Signed-off-by: Andy Gross --- .../bindings/reserved-memory/qcom,rmtfs-mem.txt | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/reserved-memory/qcom,rmtfs-mem.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/reserved-memory/qcom,rmtfs-mem.txt b/Documentation/devicetree/bindings/reserved-memory/qcom,rmtfs-mem.txt new file mode 100644 index 000000000000..8562ba1dce69 --- /dev/null +++ b/Documentation/devicetree/bindings/reserved-memory/qcom,rmtfs-mem.txt @@ -0,0 +1,51 @@ +Qualcomm Remote File System Memory binding + +This binding describes the Qualcomm remote filesystem memory, which serves the +purpose of describing the shared memory region used for remote processors to +access block device data using the Remote Filesystem protocol. + +- compatible: + Usage: required + Value type: + Definition: must be: + "qcom,rmtfs-mem" + +- reg: + Usage: required for static allocation + Value type: + Definition: must specify base address and size of the memory region, + as described in reserved-memory.txt + +- size: + Usage: required for dynamic allocation + Value type: + Definition: must specify a size of the memory region, as described in + reserved-memory.txt + +- qcom,client-id: + Usage: required + Value type: + Definition: identifier of the client to use this region for buffers. + +- qcom,vmid: + Usage: optional + Value type: + Definition: vmid of the remote processor, to set up memory protection. + += EXAMPLE +The following example shows the remote filesystem memory setup for APQ8016, +with the rmtfs region for the Hexagon DSP (id #1) located at 0x86700000. + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + rmtfs@86700000 { + compatible = "qcom,rmtfs-mem"; + reg = <0x0 0x86700000 0x0 0xe0000>; + no-map; + + qcom,client-id = <1>; + }; + }; -- cgit v1.2.3 From f7da4e6d29539bad2c29dd8ccb4ac628fe19f82b Mon Sep 17 00:00:00 2001 From: Biju Das Date: Mon, 9 Oct 2017 11:22:23 +0100 Subject: phy: rcar-gen2: Add r8a7743/5 support Add USB PHY support for r8a7743/5 SoC. Renesas RZ/G1[ME] (R8A7743/5) USB PHY is identical to the R-Car Gen2 family. Signed-off-by: Biju Das Acked-by: Simon Horman Acked-by: Rob Herring Reviewed-by: Geert Uytterhoeven Signed-off-by: Kishon Vijay Abraham I --- Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt b/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt index 91da947ae9b6..eeb9e1874ea6 100644 --- a/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt +++ b/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt @@ -4,10 +4,13 @@ This file provides information on what the device node for the R-Car generation 2 USB PHY contains. Required properties: -- compatible: "renesas,usb-phy-r8a7790" if the device is a part of R8A7790 SoC. +- compatible: "renesas,usb-phy-r8a7743" if the device is a part of R8A7743 SoC. + "renesas,usb-phy-r8a7745" if the device is a part of R8A7745 SoC. + "renesas,usb-phy-r8a7790" if the device is a part of R8A7790 SoC. "renesas,usb-phy-r8a7791" if the device is a part of R8A7791 SoC. "renesas,usb-phy-r8a7794" if the device is a part of R8A7794 SoC. - "renesas,rcar-gen2-usb-phy" for a generic R-Car Gen2 compatible device. + "renesas,rcar-gen2-usb-phy" for a generic R-Car Gen2 or + RZ/G1 compatible device. When compatible with the generic version, nodes must list the SoC-specific version corresponding to the platform first -- cgit v1.2.3 From 6100ef093ba7b99efbb8b6c62b6af3c72fc82ddb Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Thu, 12 Oct 2017 15:34:48 +0900 Subject: phy: rcar-gen3-usb2: add binding for r8a77995 This patch adds binding for r8a77995 (R-Car D3). Since r8a77995 doesn't have dedicated pins (ID, VBUS), this will match against the generic fallback on R-Car D3. For now, this driver doesn't support usb role swap for r8a77995. Signed-off-by: Yoshihiro Shimoda Reviewed-by: Simon Horman Acked-by: Rob Herring Signed-off-by: Kishon Vijay Abraham I --- Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt index ace9cce2704a..99b651b33110 100644 --- a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt +++ b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt @@ -8,6 +8,8 @@ Required properties: SoC. "renesas,usb2-phy-r8a7796" if the device is a part of an R8A7796 SoC. + "renesas,usb2-phy-r8a77995" if the device is a part of an + R8A77995 SoC. "renesas,rcar-gen3-usb2-phy" for a generic R-Car Gen3 compatible device. When compatible with the generic version, nodes must list the -- cgit v1.2.3 From a7ac6570f67061576c51c5204a51f034af54adec Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Wed, 11 Oct 2017 17:53:10 -0700 Subject: dt-bindings: phy: Add RX equalizer properties for Broadcom SATA PHY Define two new properties: brcm,rx-aeq-mode which allows configuring the SATA PHY RX equalizers and when "manual" is used, brcm,rx-aeq can be used to set the exact value. Signed-off-by: Florian Fainelli Acked-by: Rob Herring Signed-off-by: Kishon Vijay Abraham I --- Documentation/devicetree/bindings/phy/brcm-sata-phy.txt | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt index 97977cd29a98..0aced97d8092 100644 --- a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt +++ b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt @@ -27,7 +27,16 @@ Sub-nodes optional properties: This property is not applicable for "brcm,iproc-ns2-sata-phy", "brcm,iproc-nsp-sata-phy" and "brcm,iproc-sr-sata-phy". -Example: +- brcm,rxaeq-mode: string that indicates the desired RX equalizer + mode, possible values are: + "off" (equivalent to not specifying the property) + "auto" + "manual" (brcm,rxaeq-value is used in that case) + +- brcm,rxaeq-value: when 'rxaeq-mode' is set to "manual", provides the RX + equalizer value that should be used. Allowed range is 0..63. + +Example sata-phy@f0458100 { compatible = "brcm,bcm7445-sata-phy", "brcm,phy-sata3"; reg = <0xf0458100 0x1e00>, <0xf045804c 0x10>; -- cgit v1.2.3 From 864326523fd58c5f33dc9fd8cb0585ff887ca837 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Thu, 19 Oct 2017 10:20:03 -0400 Subject: scsi: Clarify SCSI core module parameter documentation Ever since it became possible to compile the SCSI core code as a module, the documentation describing the module parameters has been incorrect. Update the documentation to add a "scsi_mod." prefix to the relevant options. Reported-by: Laurence Oberman Signed-off-by: Martin K. Petersen --- Documentation/scsi/scsi-parameters.txt | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt index 8477655c0e46..453d4b79c78d 100644 --- a/Documentation/scsi/scsi-parameters.txt +++ b/Documentation/scsi/scsi-parameters.txt @@ -50,10 +50,11 @@ parameters may be changed at runtime by the command mac5380= [HW,SCSI] See drivers/scsi/mac_scsi.c. - max_luns= [SCSI] Maximum number of LUNs to probe. + scsi_mod.max_luns= + [SCSI] Maximum number of LUNs to probe. Should be between 1 and 2^32-1. - max_report_luns= + scsi_mod.max_report_luns= [SCSI] Maximum number of LUNs received. Should be between 1 and 16384. @@ -80,15 +81,17 @@ parameters may be changed at runtime by the command scsi_debug_*= [SCSI] See drivers/scsi/scsi_debug.c. - scsi_default_dev_flags= + scsi_mod.default_dev_flags= [SCSI] SCSI default device flags Format: - scsi_dev_flags= [SCSI] Black/white list entry for vendor and model + scsi_mod.dev_flags= + [SCSI] Black/white list entry for vendor and model Format: :: (flags are integer value) - scsi_logging_level= [SCSI] a bit mask of logging levels + scsi_mod.scsi_logging_level= + [SCSI] a bit mask of logging levels See drivers/scsi/scsi_logging.h for bits. Also settable via sysctl at dev.scsi.logging_level (/proc/sys/dev/scsi/logging_level). -- cgit v1.2.3 From fcc27785400a9993f258417f2ce7240890359565 Mon Sep 17 00:00:00 2001 From: Don Brace Date: Fri, 20 Oct 2017 14:11:51 -0500 Subject: scsi: smartpqi: correct spelling error in documentation Correct spelling error. Signed-off-by: Kevin Barnett Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- Documentation/scsi/smartpqi.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/scsi/smartpqi.txt b/Documentation/scsi/smartpqi.txt index ab377d9e5d1b..201f80c7c050 100644 --- a/Documentation/scsi/smartpqi.txt +++ b/Documentation/scsi/smartpqi.txt @@ -21,7 +21,7 @@ http://www.t10.org/members/w_pqi2.htm Supported devices: ------------------ - + smartpqi specific entries in /sys ----------------------------- -- cgit v1.2.3 From 1c59d045058750904926d5883ce8acdedbc52df3 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 12 Oct 2017 20:36:15 +0900 Subject: dt-bindings: gpio: uniphier: add UniPhier GPIO binding This GPIO controller is used on UniPhier SoC family. The vendor specific property "socionext,interrupt-ranges" is for specifying interrupt mapping to the parent interrupt controller because the mapping is not contiguous. It works like "ranges", but transforms "interrupts" instead of "reg". Signed-off-by: Masahiro Yamada Acked-by: Rob Herring Signed-off-by: Linus Walleij --- .../devicetree/bindings/gpio/gpio-uniphier.txt | 52 ++++++++++++++++++++++ MAINTAINERS | 1 + include/dt-bindings/gpio/uniphier-gpio.h | 18 ++++++++ 3 files changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-uniphier.txt create mode 100644 include/dt-bindings/gpio/uniphier-gpio.h (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/gpio/gpio-uniphier.txt b/Documentation/devicetree/bindings/gpio/gpio-uniphier.txt new file mode 100644 index 000000000000..fed9158dd913 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-uniphier.txt @@ -0,0 +1,52 @@ +UniPhier GPIO controller + +Required properties: +- compatible: Should be "socionext,uniphier-gpio". +- reg: Specifies offset and length of the register set for the device. +- gpio-controller: Marks the device node as a GPIO controller. +- #gpio-cells: Should be 2. The first cell is the pin number and the second + cell is used to specify optional parameters. +- interrupt-parent: Specifies the parent interrupt controller. +- interrupt-controller: Marks the device node as an interrupt controller. +- #interrupt-cells: Should be 2. The first cell defines the interrupt number. + The second cell bits[3:0] is used to specify trigger type as follows: + 1 = low-to-high edge triggered + 2 = high-to-low edge triggered + 4 = active high level-sensitive + 8 = active low level-sensitive + Valid combinations are 1, 2, 3, 4, 8. +- ngpios: Specifies the number of GPIO lines. +- gpio-ranges: Mapping to pin controller pins (as described in gpio.txt) +- socionext,interrupt-ranges: Specifies an interrupt number mapping between + this GPIO controller and its interrupt parent, in the form of arbitrary + number of triplets. + +Optional properties: +- gpio-ranges-group-names: Used for named gpio ranges (as described in gpio.txt) + +Example: + gpio: gpio@55000000 { + compatible = "socionext,uniphier-gpio"; + reg = <0x55000000 0x200>; + interrupt-parent = <&aidet>; + interrupt-controller; + #interrupt-cells = <2>; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pinctrl 0 0 0>; + gpio-ranges-group-names = "gpio_range"; + ngpios = <248>; + socionext,interrupt-ranges = <0 48 16>, <16 154 5>, <21 217 3>; + }; + +Consumer Example: + + sdhci0_pwrseq { + compatible = "mmc-pwrseq-emmc"; + reset-gpios = <&gpio UNIPHIER_GPIO_PORT(29, 4) GPIO_ACTIVE_LOW>; + }; + +Please note UNIPHIER_GPIO_PORT(29, 4) represents PORT294 in the SoC document. +Unfortunately, only the one's place is octal in the port numbering. (That is, +PORT 8, 9, 18, 19, 28, 29, ... are missing.) UNIPHIER_GPIO_PORT() is a helper +macro to calculate 29 * 8 + 4. diff --git a/MAINTAINERS b/MAINTAINERS index 00c8be748ed2..193b86116cd1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2017,6 +2017,7 @@ M: Masahiro Yamada L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) T: git git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-uniphier.git S: Maintained +F: Documentation/devicetree/bindings/gpio/gpio-uniphier.txt F: arch/arm/boot/dts/uniphier* F: arch/arm/include/asm/hardware/cache-uniphier.h F: arch/arm/mach-uniphier/ diff --git a/include/dt-bindings/gpio/uniphier-gpio.h b/include/dt-bindings/gpio/uniphier-gpio.h new file mode 100644 index 000000000000..9f0ad174f61c --- /dev/null +++ b/include/dt-bindings/gpio/uniphier-gpio.h @@ -0,0 +1,18 @@ +/* + * Copyright (C) 2017 Socionext Inc. + * Author: Masahiro Yamada + */ + +#ifndef _DT_BINDINGS_GPIO_UNIPHIER_H +#define _DT_BINDINGS_GPIO_UNIPHIER_H + +#define UNIPHIER_GPIO_LINES_PER_BANK 8 + +#define UNIPHIER_GPIO_IRQ_OFFSET ((UNIPHIER_GPIO_LINES_PER_BANK) * 15) + +#define UNIPHIER_GPIO_PORT(bank, line) \ + ((UNIPHIER_GPIO_LINES_PER_BANK) * (bank) + (line)) + +#define UNIPHIER_GPIO_IRQ(n) ((UNIPHIER_GPIO_IRQ_OFFSET) + (n)) + +#endif /* _DT_BINDINGS_GPIO_UNIPHIER_H */ -- cgit v1.2.3 From 2fbf8050dde85ed14a944035e1d7ca7eb8240eec Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Fri, 13 Oct 2017 16:26:40 +0800 Subject: dt-bindings: usb: mtk-xhci: add a optional property to disable u3ports Add a new optional property to disable u3ports Signed-off-by: Chunfeng Yun Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt index 5611a2e4ddf0..2d9b459bd890 100644 --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt @@ -38,6 +38,8 @@ Optional properties: mode; - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup control register, it depends on "mediatek,wakeup-src". + - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0, + bit1 for u3port1, ... etc; - vbus-supply : reference to the VBUS regulator; - usb3-lpm-capable : supports USB3.0 LPM - pinctrl-names : a pinctrl state named "default" must be defined -- cgit v1.2.3 From e7eef2ced8e7b2b4a06fd66e7d03df1f90fa67c9 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Fri, 13 Oct 2017 16:26:41 +0800 Subject: dt-bindings: usb: mtk-xhci: remove dummy clocks and add optional ones Remove dummy clocks for usb wakeup and add optional ones for MCU_BUS_CK and DMA_BUS_CK. Signed-off-by: Chunfeng Yun Acked-by: Rob Herring Reviewed-by: Matthias Brugger Signed-off-by: Greg Kroah-Hartman --- .../devicetree/bindings/usb/mediatek,mtk-xhci.txt | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt index 2d9b459bd890..30595964876a 100644 --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt @@ -26,10 +26,11 @@ Required properties: - clocks : a list of phandle + clock-specifier pairs, one for each entry in clock-names - clock-names : must contain - "sys_ck": for clock of xHCI MAC - "ref_ck": for reference clock of xHCI MAC - "wakeup_deb_p0": for USB wakeup debounce clock of port0 - "wakeup_deb_p1": for USB wakeup debounce clock of port1 + "sys_ck": controller clock used by normal mode, + the following ones are optional: + "ref_ck": reference clock used by low power mode etc, + "mcu_ck": mcu_bus clock for register access, + "dma_ck": dma_bus clock for data transfer by DMA - phys : a list of phandle + phy specifier pairs @@ -57,9 +58,7 @@ usb30: usb@11270000 { clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>, <&pericfg CLK_PERI_USB0>, <&pericfg CLK_PERI_USB1>; - clock-names = "sys_ck", "ref_ck", - "wakeup_deb_p0", - "wakeup_deb_p1"; + clock-names = "sys_ck", "ref_ck"; phys = <&phy_port0 PHY_TYPE_USB3>, <&phy_port1 PHY_TYPE_USB2>; vusb33-supply = <&mt6397_vusb_reg>; @@ -91,9 +90,8 @@ Required properties: - clocks : a list of phandle + clock-specifier pairs, one for each entry in clock-names - - clock-names : must be - "sys_ck": for clock of xHCI MAC - "ref_ck": for reference clock of xHCI MAC + - clock-names : must contain "sys_ck", and the following ones are optional: + "ref_ck", "mcu_ck" and "dma_ck" Optional properties: - vbus-supply : reference to the VBUS regulator; -- cgit v1.2.3 From 9053f4b9855c91f8905114c2108d5397be83bcf3 Mon Sep 17 00:00:00 2001 From: Anurag Kumar Vulisha Date: Mon, 21 Aug 2017 13:17:16 +0200 Subject: devicetree: bindings: Add sata port phy config parameters in ahci-ceva This patch adds device tree bindings for sata port phy parameters in the ahci-ceva.txt file. Signed-off-by: Anurag Kumar Vulisha Signed-off-by: Michal Simek Acked-by: Rob Herring Signed-off-by: Tejun Heo --- .../devicetree/bindings/ata/ahci-ceva.txt | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/ata/ahci-ceva.txt b/Documentation/devicetree/bindings/ata/ahci-ceva.txt index 7ca8b976c13a..7561cc4de371 100644 --- a/Documentation/devicetree/bindings/ata/ahci-ceva.txt +++ b/Documentation/devicetree/bindings/ata/ahci-ceva.txt @@ -5,6 +5,36 @@ Required properties: - compatible: Compatibility string. Must be 'ceva,ahci-1v84'. - clocks: Input clock specifier. Refer to common clock bindings. - interrupts: Interrupt specifier. Refer to interrupt binding. + - ceva,p0-cominit-params: OOB timing value for COMINIT parameter for port 0. + - ceva,p1-cominit-params: OOB timing value for COMINIT parameter for port 1. + The fields for the above parameter must be as shown below: + ceva,pN-cominit-params = /bits/ 8 ; + CINMP : COMINIT Negate Minimum Period. + CIBGN : COMINIT Burst Gap Nominal. + CIBGMX: COMINIT Burst Gap Maximum. + CIBGMN: COMINIT Burst Gap Minimum. + - ceva,p0-comwake-params: OOB timing value for COMWAKE parameter for port 0. + - ceva,p1-comwake-params: OOB timing value for COMWAKE parameter for port 1. + The fields for the above parameter must be as shown below: + ceva,pN-comwake-params = /bits/ 8 ; + CWBGMN: COMWAKE Burst Gap Minimum. + CWBGMX: COMWAKE Burst Gap Maximum. + CWBGN: COMWAKE Burst Gap Nominal. + CWNMP: COMWAKE Negate Minimum Period. + - ceva,p0-burst-params: Burst timing value for COM parameter for port 0. + - ceva,p1-burst-params: Burst timing value for COM parameter for port 1. + The fields for the above parameter must be as shown below: + ceva,pN-burst-params = /bits/ 8 ; + BMX: COM Burst Maximum. + BNM: COM Burst Nominal. + SFD: Signal Failure Detection value. + PTST: Partial to Slumber timer value. + - ceva,p0-retry-params: Retry interval timing value for port 0. + - ceva,p1-retry-params: Retry interval timing value for port 1. + The fields for the above parameter must be as shown below: + ceva,pN-retry-params = /bits/ 16 ; + RIT: Retry Interval Timer. + RCT: Rate Change Timer. Optional properties: - ceva,broken-gen2: limit to gen1 speed instead of gen2. @@ -16,5 +46,14 @@ Examples: interrupt-parent = <&gic>; interrupts = <0 133 4>; clocks = <&clkc SATA_CLK_ID>; + ceva,p0-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>; + ceva,p0-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>; + ceva,p0-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>; + ceva,p0-retry-params = /bits/ 16 <0x0216 0x7F06>; + + ceva,p1-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>; + ceva,p1-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>; + ceva,p1-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>; + ceva,p1-retry-params = /bits/ 16 <0x0216 0x7F06>; ceva,broken-gen2; }; -- cgit v1.2.3 From 8e0f1168f80acf6de4bcf68482e5e10d363d653c Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Mon, 23 Oct 2017 09:03:20 -0400 Subject: Documentation: Add my name to kernel enforcement statement The kernel enforcement statement commit had my Acked-by: but missed my name in the document signatures. Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index ba8c525eeee1..ce2c5130d37f 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -121,6 +121,7 @@ we might work for today, have in the past, or will in the future. - Ingo Molnar - Kuninori Morimoto - Trond Myklebust + - Martin K. Petersen (Oracle) - Borislav Petkov - Jiri Pirko - Josh Poimboeuf -- cgit v1.2.3 From 3f3d60d6254cfe0b1a2ab675ec1f72f232314eff Mon Sep 17 00:00:00 2001 From: Jacek Anaszewski Date: Mon, 9 Oct 2017 20:59:11 +0200 Subject: Documentation: leds: Update 00-INDEX file Add missing entries for the following documentation files: - leds-class-flash.txt - leds-lm3556.txt - leds-mlxcpld.txt - ledtrig-usbport.txt - uleds.txt Signed-off-by: Jacek Anaszewski Acked-by: Pavel Machek --- Documentation/leds/00-INDEX | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'Documentation') diff --git a/Documentation/leds/00-INDEX b/Documentation/leds/00-INDEX index b4ef1f34e25f..ae626b29a740 100644 --- a/Documentation/leds/00-INDEX +++ b/Documentation/leds/00-INDEX @@ -4,6 +4,10 @@ leds-blinkm.txt - Driver for BlinkM LED-devices. leds-class.txt - documents LED handling under Linux. +leds-class-flash.txt + - documents flash LED handling under Linux. +leds-lm3556.txt + - notes on how to use the leds-lm3556 driver. leds-lp3944.txt - notes on how to use the leds-lp3944 driver. leds-lp5521.txt @@ -16,7 +20,13 @@ leds-lp55xx.txt - description about lp55xx common driver. leds-lm3556.txt - notes on how to use the leds-lm3556 driver. +leds-mlxcpld.txt + - notes on how to use the leds-mlxcpld driver. ledtrig-oneshot.txt - One-shot LED trigger for both sporadic and dense events. ledtrig-transient.txt - LED Transient Trigger, one shot timer activation. +ledtrig-usbport.txt + - notes on how to use the drivers/usb/core/ledtrig-usbport.c trigger. +uleds.txt + - notes on how to use the uleds driver. -- cgit v1.2.3 From 59ecbbe7b31cd2d86ff9a9f461a00f7e7533aedc Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Tue, 24 Oct 2017 11:22:49 +0100 Subject: locking/barriers: Kill lockless_dereference() lockless_dereference() is a nice idea, but it gained little traction in kernel code since its introduction three years ago. This is partly because it's a pain to type, but also because using READ_ONCE() instead has worked correctly on all architectures apart from Alpha, which is a fully supported but somewhat niche architecture these days. Now that READ_ONCE() has been upgraded to contain an implicit smp_read_barrier_depends() and the few callers of lockless_dereference() have been converted, we can remove lockless_dereference() altogether. Signed-off-by: Will Deacon Cc: Linus Torvalds Cc: Paul E. McKenney Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1508840570-22169-5-git-send-email-will.deacon@arm.com Signed-off-by: Ingo Molnar --- Documentation/memory-barriers.txt | 12 ------------ Documentation/translations/ko_KR/memory-barriers.txt | 12 ------------ include/linux/compiler.h | 20 -------------------- 3 files changed, 44 deletions(-) (limited to 'Documentation') diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt index b759a60624fd..470a682f3fa4 100644 --- a/Documentation/memory-barriers.txt +++ b/Documentation/memory-barriers.txt @@ -1886,18 +1886,6 @@ There are some more advanced barrier functions: See Documentation/atomic_{t,bitops}.txt for more information. - (*) lockless_dereference(); - - This can be thought of as a pointer-fetch wrapper around the - smp_read_barrier_depends() data-dependency barrier. - - This is also similar to rcu_dereference(), but in cases where - object lifetime is handled by some mechanism other than RCU, for - example, when the objects removed only when the system goes down. - In addition, lockless_dereference() is used in some data structures - that can be used both with and without RCU. - - (*) dma_wmb(); (*) dma_rmb(); diff --git a/Documentation/translations/ko_KR/memory-barriers.txt b/Documentation/translations/ko_KR/memory-barriers.txt index a7a813258013..ec3b46e27b7a 100644 --- a/Documentation/translations/ko_KR/memory-barriers.txt +++ b/Documentation/translations/ko_KR/memory-barriers.txt @@ -1858,18 +1858,6 @@ Mandatory 배리어들은 SMP 시스템에서도 UP 시스템에서도 SMP 효 참고하세요. - (*) lockless_dereference(); - - 이 함수는 smp_read_barrier_depends() 데이터 의존성 배리어를 사용하는 - 포인터 읽어오기 래퍼(wrapper) 함수로 생각될 수 있습니다. - - 객체의 라이프타임이 RCU 외의 메커니즘으로 관리된다는 점을 제외하면 - rcu_dereference() 와도 유사한데, 예를 들면 객체가 시스템이 꺼질 때에만 - 제거되는 경우 등입니다. 또한, lockless_dereference() 은 RCU 와 함께 - 사용될수도, RCU 없이 사용될 수도 있는 일부 데이터 구조에 사용되고 - 있습니다. - - (*) dma_wmb(); (*) dma_rmb(); diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 7d7b77da9716..5a1cab48442c 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -346,24 +346,4 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s (volatile typeof(x) *)&(x); }) #define ACCESS_ONCE(x) (*__ACCESS_ONCE(x)) -/** - * lockless_dereference() - safely load a pointer for later dereference - * @p: The pointer to load - * - * Similar to rcu_dereference(), but for situations where the pointed-to - * object's lifetime is managed by something other than RCU. That - * "something other" might be reference counting or simple immortality. - * - * The seemingly unused variable ___typecheck_p validates that @p is - * indeed a pointer type by using a pointer to typeof(*p) as the type. - * Taking a pointer to typeof(*p) again is needed in case p is void *. - */ -#define lockless_dereference(p) \ -({ \ - typeof(p) _________p1 = READ_ONCE(p); \ - typeof(*(p)) *___typecheck_p __maybe_unused; \ - smp_read_barrier_depends(); /* Dependency order vs. p above. */ \ - (_________p1); \ -}) - #endif /* __LINUX_COMPILER_H */ -- cgit v1.2.3 From ea09ec8c444c61446fb71952c6c50c8f7e8a8731 Mon Sep 17 00:00:00 2001 From: Baolin Wang Date: Tue, 24 Oct 2017 13:47:49 +0800 Subject: dt-bindings: dmaengine: Add Spreadtrum SC9860 DMA controller This patch adds the binding documentation for Spreadtrum SC9860 DMA controller device. Signed-off-by: Baolin Wang Acked-by: Rob Herring Signed-off-by: Vinod Koul --- Documentation/devicetree/bindings/dma/sprd-dma.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/sprd-dma.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/dma/sprd-dma.txt b/Documentation/devicetree/bindings/dma/sprd-dma.txt new file mode 100644 index 000000000000..7a10fea2e51b --- /dev/null +++ b/Documentation/devicetree/bindings/dma/sprd-dma.txt @@ -0,0 +1,41 @@ +* Spreadtrum DMA controller + +This binding follows the generic DMA bindings defined in dma.txt. + +Required properties: +- compatible: Should be "sprd,sc9860-dma". +- reg: Should contain DMA registers location and length. +- interrupts: Should contain one interrupt shared by all channel. +- #dma-cells: must be <1>. Used to represent the number of integer + cells in the dmas property of client device. +- #dma-channels : Number of DMA channels supported. Should be 32. +- clock-names: Should contain the clock of the DMA controller. +- clocks: Should contain a clock specifier for each entry in clock-names. + +Example: + +Controller: +apdma: dma-controller@20100000 { + compatible = "sprd,sc9860-dma"; + reg = <0x20100000 0x4000>; + interrupts = ; + #dma-cells = <1>; + #dma-channels = <32>; + clock-names = "enable"; + clocks = <&clk_ap_ahb_gates 5>; +}; + + +Client: +DMA clients connected to the Spreadtrum DMA controller must use the format +described in the dma.txt file, using a two-cell specifier for each channel. +The two cells in order are: +1. A phandle pointing to the DMA controller. +2. The channel id. + +spi0: spi@70a00000{ + ... + dma-names = "rx_chn", "tx_chn"; + dmas = <&apdma 11>, <&apdma 12>; + ... +}; -- cgit v1.2.3 From 25309004c0e761986c9dc23526a03928a85188c0 Mon Sep 17 00:00:00 2001 From: Marcin Niestroj Date: Tue, 24 Oct 2017 11:06:41 -0700 Subject: Input: goodix - support gt1151 touchpanel Support was added based on Goodix GitHub repo [1]. There are two major differences between gt1151 and currently supported devices (gt9x): * CONFIG_DATA register has 0x8050 address instead of 0x8047, * config data checksum has 16-bit width instead of 8-bit. Also update goodix_i2c_test() function, so it reads ID register (which has the same address for all devices) instead of CONFIG_DATA (because its address is known only after reading ID of the device). [1] https://github.com/goodix/gt1x_driver_generic Signed-off-by: Marcin Niestroj Acked-by: Rob Herring Signed-off-by: Dmitry Torokhov --- .../bindings/input/touchscreen/goodix.txt | 3 +- drivers/input/touchscreen/goodix.c | 125 ++++++++++++++++----- 2 files changed, 100 insertions(+), 28 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt b/Documentation/devicetree/bindings/input/touchscreen/goodix.txt index c98757a69110..0c369d8ebcab 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/goodix.txt @@ -2,7 +2,8 @@ Device tree bindings for Goodix GT9xx series touchscreen controller Required properties: - - compatible : Should be "goodix,gt911" + - compatible : Should be "goodix,gt1151" + or "goodix,gt911" or "goodix,gt9110" or "goodix,gt912" or "goodix,gt927" diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c index b3bbad7d2282..69d0b8cbc71f 100644 --- a/drivers/input/touchscreen/goodix.c +++ b/drivers/input/touchscreen/goodix.c @@ -31,9 +31,18 @@ #include #include +struct goodix_ts_data; + +struct goodix_chip_data { + u16 config_addr; + int config_len; + int (*check_config)(struct goodix_ts_data *, const struct firmware *); +}; + struct goodix_ts_data { struct i2c_client *client; struct input_dev *input_dev; + const struct goodix_chip_data *chip; int abs_x_max; int abs_y_max; bool swapped_x_y; @@ -41,7 +50,6 @@ struct goodix_ts_data { bool inverted_y; unsigned int max_touch_num; unsigned int int_trigger_type; - int cfg_len; struct gpio_desc *gpiod_int; struct gpio_desc *gpiod_rst; u16 id; @@ -69,7 +77,8 @@ struct goodix_ts_data { #define GOODIX_CMD_SCREEN_OFF 0x05 #define GOODIX_READ_COOR_ADDR 0x814E -#define GOODIX_REG_CONFIG_DATA 0x8047 +#define GOODIX_GT1X_REG_CONFIG_DATA 0x8050 +#define GOODIX_GT9X_REG_CONFIG_DATA 0x8047 #define GOODIX_REG_ID 0x8140 #define GOODIX_BUFFER_STATUS_READY BIT(7) @@ -79,6 +88,35 @@ struct goodix_ts_data { #define MAX_CONTACTS_LOC 5 #define TRIGGER_LOC 6 +static int goodix_check_cfg_8(struct goodix_ts_data *ts, + const struct firmware *cfg); +static int goodix_check_cfg_16(struct goodix_ts_data *ts, + const struct firmware *cfg); + +static const struct goodix_chip_data gt1x_chip_data = { + .config_addr = GOODIX_GT1X_REG_CONFIG_DATA, + .config_len = GOODIX_CONFIG_MAX_LENGTH, + .check_config = goodix_check_cfg_16, +}; + +static const struct goodix_chip_data gt911_chip_data = { + .config_addr = GOODIX_GT9X_REG_CONFIG_DATA, + .config_len = GOODIX_CONFIG_911_LENGTH, + .check_config = goodix_check_cfg_8, +}; + +static const struct goodix_chip_data gt967_chip_data = { + .config_addr = GOODIX_GT9X_REG_CONFIG_DATA, + .config_len = GOODIX_CONFIG_967_LENGTH, + .check_config = goodix_check_cfg_8, +}; + +static const struct goodix_chip_data gt9x_chip_data = { + .config_addr = GOODIX_GT9X_REG_CONFIG_DATA, + .config_len = GOODIX_CONFIG_MAX_LENGTH, + .check_config = goodix_check_cfg_8, +}; + static const unsigned long goodix_irq_flags[] = { IRQ_TYPE_EDGE_RISING, IRQ_TYPE_EDGE_FALLING, @@ -177,22 +215,25 @@ static int goodix_i2c_write_u8(struct i2c_client *client, u16 reg, u8 value) return goodix_i2c_write(client, reg, &value, sizeof(value)); } -static int goodix_get_cfg_len(u16 id) +static const struct goodix_chip_data *goodix_get_chip_data(u16 id) { switch (id) { + case 1151: + return >1x_chip_data; + case 911: case 9271: case 9110: case 927: case 928: - return GOODIX_CONFIG_911_LENGTH; + return >911_chip_data; case 912: case 967: - return GOODIX_CONFIG_967_LENGTH; + return >967_chip_data; default: - return GOODIX_CONFIG_MAX_LENGTH; + return >9x_chip_data; } } @@ -332,25 +373,12 @@ static int goodix_request_irq(struct goodix_ts_data *ts) ts->irq_flags, ts->client->name, ts); } -/** - * goodix_check_cfg - Checks if config fw is valid - * - * @ts: goodix_ts_data pointer - * @cfg: firmware config data - */ -static int goodix_check_cfg(struct goodix_ts_data *ts, - const struct firmware *cfg) +static int goodix_check_cfg_8(struct goodix_ts_data *ts, + const struct firmware *cfg) { - int i, raw_cfg_len; + int i, raw_cfg_len = cfg->size - 2; u8 check_sum = 0; - if (cfg->size > GOODIX_CONFIG_MAX_LENGTH) { - dev_err(&ts->client->dev, - "The length of the config fw is not correct"); - return -EINVAL; - } - - raw_cfg_len = cfg->size - 2; for (i = 0; i < raw_cfg_len; i++) check_sum += cfg->data[i]; check_sum = (~check_sum) + 1; @@ -369,6 +397,48 @@ static int goodix_check_cfg(struct goodix_ts_data *ts, return 0; } +static int goodix_check_cfg_16(struct goodix_ts_data *ts, + const struct firmware *cfg) +{ + int i, raw_cfg_len = cfg->size - 3; + u16 check_sum = 0; + + for (i = 0; i < raw_cfg_len; i += 2) + check_sum += get_unaligned_be16(&cfg->data[i]); + check_sum = (~check_sum) + 1; + if (check_sum != get_unaligned_be16(&cfg->data[raw_cfg_len])) { + dev_err(&ts->client->dev, + "The checksum of the config fw is not correct"); + return -EINVAL; + } + + if (cfg->data[raw_cfg_len + 2] != 1) { + dev_err(&ts->client->dev, + "Config fw must have Config_Fresh register set"); + return -EINVAL; + } + + return 0; +} + +/** + * goodix_check_cfg - Checks if config fw is valid + * + * @ts: goodix_ts_data pointer + * @cfg: firmware config data + */ +static int goodix_check_cfg(struct goodix_ts_data *ts, + const struct firmware *cfg) +{ + if (cfg->size > GOODIX_CONFIG_MAX_LENGTH) { + dev_err(&ts->client->dev, + "The length of the config fw is not correct"); + return -EINVAL; + } + + return ts->chip->check_config(ts, cfg); +} + /** * goodix_send_cfg - Write fw config to device * @@ -384,7 +454,7 @@ static int goodix_send_cfg(struct goodix_ts_data *ts, if (error) return error; - error = goodix_i2c_write(ts->client, GOODIX_REG_CONFIG_DATA, cfg->data, + error = goodix_i2c_write(ts->client, ts->chip->config_addr, cfg->data, cfg->size); if (error) { dev_err(&ts->client->dev, "Failed to write config data: %d", @@ -511,8 +581,8 @@ static void goodix_read_config(struct goodix_ts_data *ts) u8 config[GOODIX_CONFIG_MAX_LENGTH]; int error; - error = goodix_i2c_read(ts->client, GOODIX_REG_CONFIG_DATA, - config, ts->cfg_len); + error = goodix_i2c_read(ts->client, ts->chip->config_addr, + config, ts->chip->config_len); if (error) { dev_warn(&ts->client->dev, "Error reading config (%d), using defaults\n", @@ -592,7 +662,7 @@ static int goodix_i2c_test(struct i2c_client *client) u8 test; while (retry++ < 2) { - error = goodix_i2c_read(client, GOODIX_REG_CONFIG_DATA, + error = goodix_i2c_read(client, GOODIX_REG_ID, &test, 1); if (!error) return 0; @@ -762,7 +832,7 @@ static int goodix_ts_probe(struct i2c_client *client, return error; } - ts->cfg_len = goodix_get_cfg_len(ts->id); + ts->chip = goodix_get_chip_data(ts->id); if (ts->gpiod_int && ts->gpiod_rst) { /* update device config */ @@ -891,6 +961,7 @@ MODULE_DEVICE_TABLE(acpi, goodix_acpi_match); #ifdef CONFIG_OF static const struct of_device_id goodix_of_match[] = { + { .compatible = "goodix,gt1151" }, { .compatible = "goodix,gt911" }, { .compatible = "goodix,gt9110" }, { .compatible = "goodix,gt912" }, -- cgit v1.2.3 From bbd11bddb398c4278c06892bd6498da34c47a00a Mon Sep 17 00:00:00 2001 From: Jianguo Sun Date: Mon, 23 Oct 2017 19:17:50 +0800 Subject: PCI: hisi: Add HiSilicon STB SoC PCIe controller driver Add a HiSilicon STB SoC PCIe controller driver. This controller is based on the DesignWare PCIe core. Signed-off-by: Jianguo Sun Signed-off-by: Shawn Guo Signed-off-by: Bjorn Helgaas --- .../bindings/pci/hisilicon-histb-pcie.txt | 68 +++ MAINTAINERS | 8 + drivers/pci/dwc/Kconfig | 10 + drivers/pci/dwc/Makefile | 1 + drivers/pci/dwc/pcie-histb.c | 470 +++++++++++++++++++++ 5 files changed, 557 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/hisilicon-histb-pcie.txt create mode 100644 drivers/pci/dwc/pcie-histb.c (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pci/hisilicon-histb-pcie.txt b/Documentation/devicetree/bindings/pci/hisilicon-histb-pcie.txt new file mode 100644 index 000000000000..c84bc027930b --- /dev/null +++ b/Documentation/devicetree/bindings/pci/hisilicon-histb-pcie.txt @@ -0,0 +1,68 @@ +HiSilicon STB PCIe host bridge DT description + +The HiSilicon STB PCIe host controller is based on the DesignWare PCIe core. +It shares common functions with the DesignWare PCIe core driver and inherits +common properties defined in +Documentation/devicetree/bindings/pci/designware-pcie.txt. + +Additional properties are described here: + +Required properties +- compatible: Should be one of the following strings: + "hisilicon,hi3798cv200-pcie" +- reg: Should contain sysctl, rc_dbi, config registers location and length. +- reg-names: Must include the following entries: + "control": control registers of PCIe controller; + "rc-dbi": configuration space of PCIe controller; + "config": configuration transaction space of PCIe controller. +- bus-range: PCI bus numbers covered. +- interrupts: MSI interrupt. +- interrupt-names: Must include "msi" entries. +- clocks: List of phandle and clock specifier pairs as listed in clock-names + property. +- clock-name: Must include the following entries: + "aux": auxiliary gate clock; + "pipe": pipe gate clock; + "sys": sys gate clock; + "bus": bus gate clock. +- resets: List of phandle and reset specifier pairs as listed in reset-names + property. +- reset-names: Must include the following entries: + "soft": soft reset; + "sys": sys reset; + "bus": bus reset. + +Optional properties: +- reset-gpios: The gpio to generate PCIe PERST# assert and deassert signal. +- phys: List of phandle and phy mode specifier, should be 0. +- phy-names: Must be "phy". + +Example: + pcie@f9860000 { + compatible = "hisilicon,hi3798cv200-pcie"; + reg = <0xf9860000 0x1000>, + <0xf0000000 0x2000>, + <0xf2000000 0x01000000>; + reg-names = "control", "rc-dbi", "config"; + #address-cells = <3>; + #size-cells = <2>; + device_type = "pci"; + bus-range = <0 15>; + num-lanes = <1>; + ranges=<0x81000000 0 0 0xf4000000 0 0x00010000 + 0x82000000 0 0xf3000000 0xf3000000 0 0x01000000>; + interrupts = ; + interrupt-names = "msi"; + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0>; + interrupt-map = <0 0 0 0 &gic GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&crg PCIE_AUX_CLK>, + <&crg PCIE_PIPE_CLK>, + <&crg PCIE_SYS_CLK>, + <&crg PCIE_BUS_CLK>; + clock-names = "aux", "pipe", "sys", "bus"; + resets = <&crg 0x18c 6>, <&crg 0x18c 5>, <&crg 0x18c 4>; + reset-names = "soft", "sys", "bus"; + phys = <&combphy1 PHY_TYPE_PCIE>; + phy-names = "phy"; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 65b0c88d5ee0..2a3501cfd201 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10480,6 +10480,14 @@ S: Maintained F: Documentation/devicetree/bindings/pci/pcie-kirin.txt F: drivers/pci/dwc/pcie-kirin.c +PCIE DRIVER FOR HISILICON STB +M: Jianguo Sun +M: Shawn Guo +L: linux-pci@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/pci/hisilicon-histb-pcie.txt +F: drivers/pci/dwc/pcie-histb.c + PCIE DRIVER FOR MEDIATEK M: Ryder Lee L: linux-pci@vger.kernel.org diff --git a/drivers/pci/dwc/Kconfig b/drivers/pci/dwc/Kconfig index 22ec82fcdea2..113e09440f85 100644 --- a/drivers/pci/dwc/Kconfig +++ b/drivers/pci/dwc/Kconfig @@ -169,4 +169,14 @@ config PCIE_KIRIN Say Y here if you want PCIe controller support on HiSilicon Kirin series SoCs. +config PCIE_HISI_STB + bool "HiSilicon STB SoCs PCIe controllers" + depends on ARCH_HISI + depends on PCI + depends on PCI_MSI_IRQ_DOMAIN + select PCIEPORTBUS + select PCIE_DW_HOST + help + Say Y here if you want PCIe controller support on HiSilicon STB SoCs + endmenu diff --git a/drivers/pci/dwc/Makefile b/drivers/pci/dwc/Makefile index c61be9738cce..54f56f6e9236 100644 --- a/drivers/pci/dwc/Makefile +++ b/drivers/pci/dwc/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_PCIE_QCOM) += pcie-qcom.o obj-$(CONFIG_PCIE_ARMADA_8K) += pcie-armada8k.o obj-$(CONFIG_PCIE_ARTPEC6) += pcie-artpec6.o obj-$(CONFIG_PCIE_KIRIN) += pcie-kirin.o +obj-$(CONFIG_PCIE_HISI_STB) += pcie-histb.o # The following drivers are for devices that use the generic ACPI # pci_root.c driver but don't support standard ECAM config access. diff --git a/drivers/pci/dwc/pcie-histb.c b/drivers/pci/dwc/pcie-histb.c new file mode 100644 index 000000000000..33b01b734d7d --- /dev/null +++ b/drivers/pci/dwc/pcie-histb.c @@ -0,0 +1,470 @@ +/* + * PCIe host controller driver for HiSilicon STB SoCs + * + * Copyright (C) 2016-2017 HiSilicon Co., Ltd. http://www.hisilicon.com + * + * Authors: Ruqiang Ju + * Jianguo Sun + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "pcie-designware.h" + +#define to_histb_pcie(x) dev_get_drvdata((x)->dev) + +#define PCIE_SYS_CTRL0 0x0000 +#define PCIE_SYS_CTRL1 0x0004 +#define PCIE_SYS_CTRL7 0x001C +#define PCIE_SYS_CTRL13 0x0034 +#define PCIE_SYS_CTRL15 0x003C +#define PCIE_SYS_CTRL16 0x0040 +#define PCIE_SYS_CTRL17 0x0044 + +#define PCIE_SYS_STAT0 0x0100 +#define PCIE_SYS_STAT4 0x0110 + +#define PCIE_RDLH_LINK_UP BIT(5) +#define PCIE_XMLH_LINK_UP BIT(15) +#define PCIE_ELBI_SLV_DBI_ENABLE BIT(21) +#define PCIE_APP_LTSSM_ENABLE BIT(11) + +#define PCIE_DEVICE_TYPE_MASK GENMASK(31, 28) +#define PCIE_WM_EP 0 +#define PCIE_WM_LEGACY BIT(1) +#define PCIE_WM_RC BIT(30) + +#define PCIE_LTSSM_STATE_MASK GENMASK(5, 0) +#define PCIE_LTSSM_STATE_ACTIVE 0x11 + +struct histb_pcie { + struct dw_pcie *pci; + struct clk *aux_clk; + struct clk *pipe_clk; + struct clk *sys_clk; + struct clk *bus_clk; + struct phy *phy; + struct reset_control *soft_reset; + struct reset_control *sys_reset; + struct reset_control *bus_reset; + void __iomem *ctrl; + int reset_gpio; +}; + +static u32 histb_pcie_readl(struct histb_pcie *histb_pcie, u32 reg) +{ + return readl(histb_pcie->ctrl + reg); +} + +static void histb_pcie_writel(struct histb_pcie *histb_pcie, u32 reg, u32 val) +{ + writel(val, histb_pcie->ctrl + reg); +} + +static void histb_pcie_dbi_w_mode(struct pcie_port *pp, bool enable) +{ + struct dw_pcie *pci = to_dw_pcie_from_pp(pp); + struct histb_pcie *hipcie = to_histb_pcie(pci); + u32 val; + + val = histb_pcie_readl(hipcie, PCIE_SYS_CTRL0); + if (enable) + val |= PCIE_ELBI_SLV_DBI_ENABLE; + else + val &= ~PCIE_ELBI_SLV_DBI_ENABLE; + histb_pcie_writel(hipcie, PCIE_SYS_CTRL0, val); +} + +static void histb_pcie_dbi_r_mode(struct pcie_port *pp, bool enable) +{ + struct dw_pcie *pci = to_dw_pcie_from_pp(pp); + struct histb_pcie *hipcie = to_histb_pcie(pci); + u32 val; + + val = histb_pcie_readl(hipcie, PCIE_SYS_CTRL1); + if (enable) + val |= PCIE_ELBI_SLV_DBI_ENABLE; + else + val &= ~PCIE_ELBI_SLV_DBI_ENABLE; + histb_pcie_writel(hipcie, PCIE_SYS_CTRL1, val); +} + +static u32 histb_pcie_read_dbi(struct dw_pcie *pci, void __iomem *base, + u32 reg, size_t size) +{ + u32 val; + + histb_pcie_dbi_r_mode(&pci->pp, true); + dw_pcie_read(base + reg, size, &val); + histb_pcie_dbi_r_mode(&pci->pp, false); + + return val; +} + +static void histb_pcie_write_dbi(struct dw_pcie *pci, void __iomem *base, + u32 reg, size_t size, u32 val) +{ + histb_pcie_dbi_w_mode(&pci->pp, true); + dw_pcie_write(base + reg, size, val); + histb_pcie_dbi_w_mode(&pci->pp, false); +} + +static int histb_pcie_rd_own_conf(struct pcie_port *pp, int where, + int size, u32 *val) +{ + struct dw_pcie *pci = to_dw_pcie_from_pp(pp); + int ret; + + histb_pcie_dbi_r_mode(pp, true); + ret = dw_pcie_read(pci->dbi_base + where, size, val); + histb_pcie_dbi_r_mode(pp, false); + + return ret; +} + +static int histb_pcie_wr_own_conf(struct pcie_port *pp, int where, + int size, u32 val) +{ + struct dw_pcie *pci = to_dw_pcie_from_pp(pp); + int ret; + + histb_pcie_dbi_w_mode(pp, true); + ret = dw_pcie_write(pci->dbi_base + where, size, val); + histb_pcie_dbi_w_mode(pp, false); + + return ret; +} + +static int histb_pcie_link_up(struct dw_pcie *pci) +{ + struct histb_pcie *hipcie = to_histb_pcie(pci); + u32 regval; + u32 status; + + regval = histb_pcie_readl(hipcie, PCIE_SYS_STAT0); + status = histb_pcie_readl(hipcie, PCIE_SYS_STAT4); + status &= PCIE_LTSSM_STATE_MASK; + if ((regval & PCIE_XMLH_LINK_UP) && (regval & PCIE_RDLH_LINK_UP) && + (status == PCIE_LTSSM_STATE_ACTIVE)) + return 1; + + return 0; +} + +static int histb_pcie_establish_link(struct pcie_port *pp) +{ + struct dw_pcie *pci = to_dw_pcie_from_pp(pp); + struct histb_pcie *hipcie = to_histb_pcie(pci); + u32 regval; + + if (dw_pcie_link_up(pci)) { + dev_info(pci->dev, "Link already up\n"); + return 0; + } + + /* PCIe RC work mode */ + regval = histb_pcie_readl(hipcie, PCIE_SYS_CTRL0); + regval &= ~PCIE_DEVICE_TYPE_MASK; + regval |= PCIE_WM_RC; + histb_pcie_writel(hipcie, PCIE_SYS_CTRL0, regval); + + /* setup root complex */ + dw_pcie_setup_rc(pp); + + /* assert LTSSM enable */ + regval = histb_pcie_readl(hipcie, PCIE_SYS_CTRL7); + regval |= PCIE_APP_LTSSM_ENABLE; + histb_pcie_writel(hipcie, PCIE_SYS_CTRL7, regval); + + return dw_pcie_wait_for_link(pci); +} + +static int histb_pcie_host_init(struct pcie_port *pp) +{ + histb_pcie_establish_link(pp); + + if (IS_ENABLED(CONFIG_PCI_MSI)) + dw_pcie_msi_init(pp); + + return 0; +} + +static struct dw_pcie_host_ops histb_pcie_host_ops = { + .rd_own_conf = histb_pcie_rd_own_conf, + .wr_own_conf = histb_pcie_wr_own_conf, + .host_init = histb_pcie_host_init, +}; + +static irqreturn_t histb_pcie_msi_irq_handler(int irq, void *arg) +{ + struct pcie_port *pp = arg; + + return dw_handle_msi_irq(pp); +} + +static void histb_pcie_host_disable(struct histb_pcie *hipcie) +{ + reset_control_assert(hipcie->soft_reset); + reset_control_assert(hipcie->sys_reset); + reset_control_assert(hipcie->bus_reset); + + clk_disable_unprepare(hipcie->aux_clk); + clk_disable_unprepare(hipcie->pipe_clk); + clk_disable_unprepare(hipcie->sys_clk); + clk_disable_unprepare(hipcie->bus_clk); + + if (gpio_is_valid(hipcie->reset_gpio)) + gpio_set_value_cansleep(hipcie->reset_gpio, 0); +} + +static int histb_pcie_host_enable(struct pcie_port *pp) +{ + struct dw_pcie *pci = to_dw_pcie_from_pp(pp); + struct histb_pcie *hipcie = to_histb_pcie(pci); + struct device *dev = pci->dev; + int ret; + + /* power on PCIe device if have */ + if (gpio_is_valid(hipcie->reset_gpio)) + gpio_set_value_cansleep(hipcie->reset_gpio, 1); + + ret = clk_prepare_enable(hipcie->bus_clk); + if (ret) { + dev_err(dev, "cannot prepare/enable bus clk\n"); + goto err_bus_clk; + } + + ret = clk_prepare_enable(hipcie->sys_clk); + if (ret) { + dev_err(dev, "cannot prepare/enable sys clk\n"); + goto err_sys_clk; + } + + ret = clk_prepare_enable(hipcie->pipe_clk); + if (ret) { + dev_err(dev, "cannot prepare/enable pipe clk\n"); + goto err_pipe_clk; + } + + ret = clk_prepare_enable(hipcie->aux_clk); + if (ret) { + dev_err(dev, "cannot prepare/enable aux clk\n"); + goto err_aux_clk; + } + + reset_control_assert(hipcie->soft_reset); + reset_control_deassert(hipcie->soft_reset); + + reset_control_assert(hipcie->sys_reset); + reset_control_deassert(hipcie->sys_reset); + + reset_control_assert(hipcie->bus_reset); + reset_control_deassert(hipcie->bus_reset); + + return 0; + +err_aux_clk: + clk_disable_unprepare(hipcie->aux_clk); +err_pipe_clk: + clk_disable_unprepare(hipcie->pipe_clk); +err_sys_clk: + clk_disable_unprepare(hipcie->sys_clk); +err_bus_clk: + clk_disable_unprepare(hipcie->bus_clk); + + return ret; +} + +static const struct dw_pcie_ops dw_pcie_ops = { + .read_dbi = histb_pcie_read_dbi, + .write_dbi = histb_pcie_write_dbi, + .link_up = histb_pcie_link_up, +}; + +static int histb_pcie_probe(struct platform_device *pdev) +{ + struct histb_pcie *hipcie; + struct dw_pcie *pci; + struct pcie_port *pp; + struct resource *res; + struct device_node *np = pdev->dev.of_node; + struct device *dev = &pdev->dev; + enum of_gpio_flags of_flags; + unsigned long flag = GPIOF_DIR_OUT; + int ret; + + hipcie = devm_kzalloc(dev, sizeof(*hipcie), GFP_KERNEL); + if (!hipcie) + return -ENOMEM; + + pci = devm_kzalloc(dev, sizeof(*pci), GFP_KERNEL); + if (!pci) + return -ENOMEM; + + hipcie->pci = pci; + pp = &pci->pp; + pci->dev = dev; + pci->ops = &dw_pcie_ops; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "control"); + hipcie->ctrl = devm_ioremap_resource(dev, res); + if (IS_ERR(hipcie->ctrl)) { + dev_err(dev, "cannot get control reg base\n"); + return PTR_ERR(hipcie->ctrl); + } + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rc-dbi"); + pci->dbi_base = devm_ioremap_resource(dev, res); + if (IS_ERR(pci->dbi_base)) { + dev_err(dev, "cannot get rc-dbi base\n"); + return PTR_ERR(pci->dbi_base); + } + + hipcie->reset_gpio = of_get_named_gpio_flags(np, + "reset-gpios", 0, &of_flags); + if (of_flags & OF_GPIO_ACTIVE_LOW) + flag |= GPIOF_ACTIVE_LOW; + if (gpio_is_valid(hipcie->reset_gpio)) { + ret = devm_gpio_request_one(dev, hipcie->reset_gpio, + flag, "PCIe device power control"); + if (ret) { + dev_err(dev, "unable to request gpio\n"); + return ret; + } + } + + hipcie->aux_clk = devm_clk_get(dev, "aux"); + if (IS_ERR(hipcie->aux_clk)) { + dev_err(dev, "Failed to get PCIe aux clk\n"); + return PTR_ERR(hipcie->aux_clk); + } + + hipcie->pipe_clk = devm_clk_get(dev, "pipe"); + if (IS_ERR(hipcie->pipe_clk)) { + dev_err(dev, "Failed to get PCIe pipe clk\n"); + return PTR_ERR(hipcie->pipe_clk); + } + + hipcie->sys_clk = devm_clk_get(dev, "sys"); + if (IS_ERR(hipcie->sys_clk)) { + dev_err(dev, "Failed to get PCIEe sys clk\n"); + return PTR_ERR(hipcie->sys_clk); + } + + hipcie->bus_clk = devm_clk_get(dev, "bus"); + if (IS_ERR(hipcie->bus_clk)) { + dev_err(dev, "Failed to get PCIe bus clk\n"); + return PTR_ERR(hipcie->bus_clk); + } + + hipcie->soft_reset = devm_reset_control_get(dev, "soft"); + if (IS_ERR(hipcie->soft_reset)) { + dev_err(dev, "couldn't get soft reset\n"); + return PTR_ERR(hipcie->soft_reset); + } + + hipcie->sys_reset = devm_reset_control_get(dev, "sys"); + if (IS_ERR(hipcie->sys_reset)) { + dev_err(dev, "couldn't get sys reset\n"); + return PTR_ERR(hipcie->sys_reset); + } + + hipcie->bus_reset = devm_reset_control_get(dev, "bus"); + if (IS_ERR(hipcie->bus_reset)) { + dev_err(dev, "couldn't get bus reset\n"); + return PTR_ERR(hipcie->bus_reset); + } + + if (IS_ENABLED(CONFIG_PCI_MSI)) { + pp->msi_irq = platform_get_irq_byname(pdev, "msi"); + if (pp->msi_irq < 0) { + dev_err(dev, "Failed to get MSI IRQ\n"); + return pp->msi_irq; + } + + ret = devm_request_irq(dev, pp->msi_irq, + histb_pcie_msi_irq_handler, + IRQF_SHARED, "histb-pcie-msi", pp); + if (ret) { + dev_err(dev, "cannot request MSI IRQ\n"); + return ret; + } + } + + hipcie->phy = devm_phy_get(dev, "phy"); + if (IS_ERR(hipcie->phy)) { + dev_info(dev, "no pcie-phy found\n"); + hipcie->phy = NULL; + /* fall through here! + * if no pcie-phy found, phy init + * should be done under boot! + */ + } else { + phy_init(hipcie->phy); + } + + pp->root_bus_nr = -1; + pp->ops = &histb_pcie_host_ops; + + platform_set_drvdata(pdev, hipcie); + + ret = histb_pcie_host_enable(pp); + if (ret) { + dev_err(dev, "failed to enable host\n"); + return ret; + } + + ret = dw_pcie_host_init(pp); + if (ret) { + dev_err(dev, "failed to initialize host\n"); + return ret; + } + + return 0; +} + +static int histb_pcie_remove(struct platform_device *pdev) +{ + struct histb_pcie *hipcie = platform_get_drvdata(pdev); + + histb_pcie_host_disable(hipcie); + + if (hipcie->phy) + phy_exit(hipcie->phy); + + return 0; +} + +static const struct of_device_id histb_pcie_of_match[] = { + { .compatible = "hisilicon,hi3798cv200-pcie", }, + {}, +}; +MODULE_DEVICE_TABLE(of, histb_pcie_of_match); + +static struct platform_driver histb_pcie_platform_driver = { + .probe = histb_pcie_probe, + .remove = histb_pcie_remove, + .driver = { + .name = "histb-pcie", + .of_match_table = histb_pcie_of_match, + }, +}; +module_platform_driver(histb_pcie_platform_driver); + +MODULE_DESCRIPTION("HiSilicon STB PCIe host controller driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From 3c535c94a0ba94e9852de3aae7b6c62413eb2af7 Mon Sep 17 00:00:00 2001 From: Guochun Mao Date: Thu, 21 Sep 2017 20:45:05 +0800 Subject: dt-bindings: mtd: add new compatible strings and improve description Add "mediatak,mt2712-nor" and "mediatek,mt7622-nor" for nor flash node's compatible strings. Explicate the fallback compatible. Acked-by: Rob Herring Signed-off-by: Guochun Mao Signed-off-by: Cyrille Pitchen --- Documentation/devicetree/bindings/mtd/mtk-quadspi.txt | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt index 840f9405dcf0..56d3668e2c50 100644 --- a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt +++ b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt @@ -1,13 +1,16 @@ * Serial NOR flash controller for MTK MT81xx (and similar) Required properties: -- compatible: The possible values are: - "mediatek,mt2701-nor" - "mediatek,mt7623-nor" +- compatible: For mt8173, compatible should be "mediatek,mt8173-nor", + and it's the fallback compatible for other Soc. + For every other SoC, should contain both the SoC-specific compatible + string and "mediatek,mt8173-nor". + The possible values are: + "mediatek,mt2701-nor", "mediatek,mt8173-nor" + "mediatek,mt2712-nor", "mediatek,mt8173-nor" + "mediatek,mt7622-nor", "mediatek,mt8173-nor" + "mediatek,mt7623-nor", "mediatek,mt8173-nor" "mediatek,mt8173-nor" - For mt8173, compatible should be "mediatek,mt8173-nor". - For every other SoC, should contain both the SoC-specific compatible string - and "mediatek,mt8173-nor". - reg: physical base address and length of the controller's register - clocks: the phandle of the clocks needed by the nor controller - clock-names: the names of the clocks -- cgit v1.2.3 From 3587679d93d0b0e4c31e5a2ad1dffdfcb77e8526 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Mon, 23 Oct 2017 14:07:24 -0700 Subject: locking/atomics, doc/filesystems: Convert ACCESS_ONCE() references For several reasons, it is desirable to use {READ,WRITE}_ONCE() in preference to ACCESS_ONCE(), and new code is expected to use one of the former. So far, there's been no reason to change most existing uses of ACCESS_ONCE(), as these aren't currently harmful. However, for some features it is necessary to instrument reads and writes separately, which is not possible with ACCESS_ONCE(). This distinction is critical to correct operation. It's possible to transform the bulk of kernel code using the Coccinelle script below. However, this doesn't handle documentation, leaving references to ACCESS_ONCE() instances which have been removed. As a preparatory step, this patch converts the filesystems documentation to use {READ,WRITE}_ONCE() consistently. ---- virtual patch @ depends on patch @ expression E1, E2; @@ - ACCESS_ONCE(E1) = E2 + WRITE_ONCE(E1, E2) @ depends on patch @ expression E; @@ - ACCESS_ONCE(E) + READ_ONCE(E) ---- Signed-off-by: Paul E. McKenney Acked-by: Will Deacon Acked-by: Mark Rutland Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: davem@davemloft.net Cc: linux-arch@vger.kernel.org Cc: mpe@ellerman.id.au Cc: shuah@kernel.org Cc: snitzer@redhat.com Cc: thor.thayer@linux.intel.com Cc: tj@kernel.org Cc: viro@zeniv.linux.org.uk Link: http://lkml.kernel.org/r/1508792849-3115-14-git-send-email-paulmck@linux.vnet.ibm.com Signed-off-by: Ingo Molnar --- Documentation/filesystems/path-lookup.md | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/path-lookup.md b/Documentation/filesystems/path-lookup.md index 1b39e084a2b2..1933ef734e63 100644 --- a/Documentation/filesystems/path-lookup.md +++ b/Documentation/filesystems/path-lookup.md @@ -826,9 +826,9 @@ If the filesystem may need to revalidate dcache entries, then *is* passed the dentry but does not have access to the `inode` or the `seq` number from the `nameidata`, so it needs to be extra careful when accessing fields in the dentry. This "extra care" typically -involves using `ACCESS_ONCE()` or the newer [`READ_ONCE()`] to access -fields, and verifying the result is not NULL before using it. This -pattern can be see in `nfs_lookup_revalidate()`. +involves using [`READ_ONCE()`] to access fields, and verifying the +result is not NULL before using it. This pattern can be seen in +`nfs_lookup_revalidate()`. A pair of patterns ------------------ -- cgit v1.2.3 From d141babe4244945f1d001118578e0eb3ce12729d Mon Sep 17 00:00:00 2001 From: Byungchul Park Date: Wed, 25 Oct 2017 17:56:00 +0900 Subject: locking/lockdep: Add a boot parameter allowing unwind in cross-release and disable it by default Johan Hovold reported a heavy performance regression caused by lockdep cross-release: > Boot time (from "Linux version" to login prompt) had in fact doubled > since 4.13 where it took 17 seconds (with my current config) compared to > the 35 seconds I now see with 4.14-rc4. > > I quick bisect pointed to lockdep and specifically the following commit: > > 28a903f63ec0 ("locking/lockdep: Handle non(or multi)-acquisition > of a crosslock") > > which I've verified is the commit which doubled the boot time (compared > to 28a903f63ec0^) (added by lockdep crossrelease series [1]). Currently cross-release performs unwind on every acquisition, but that is very expensive. This patch makes unwind optional and disables it by default and only records acquire_ip. Full stack traces are sometimes required for full analysis, in which case a boot paramter, crossrelease_fullstack, can be specified. On my qemu Ubuntu machine (x86_64, 4 cores, 512M), the regression was fixed. We measure boot times with 'perf stat --null --repeat 10 $QEMU', where $QEMU launches a kernel with init=/bin/true: 1. No lockdep enabled: Performance counter stats for 'qemu_booting_time.sh bzImage' (10 runs): 2.756558155 seconds time elapsed ( +- 0.09% ) 2. Lockdep enabled: Performance counter stats for 'qemu_booting_time.sh bzImage' (10 runs): 2.968710420 seconds time elapsed ( +- 0.12% ) 3. Lockdep enabled + cross-release enabled: Performance counter stats for 'qemu_booting_time.sh bzImage' (10 runs): 3.153839636 seconds time elapsed ( +- 0.31% ) 4. Lockdep enabled + cross-release enabled + this patch applied: Performance counter stats for 'qemu_booting_time.sh bzImage' (10 runs): 2.963669551 seconds time elapsed ( +- 0.11% ) I.e. lockdep cross-release performance is now indistinguishable from vanilla lockdep. Bisected-by: Johan Hovold Analyzed-by: Thomas Gleixner Suggested-by: Thomas Gleixner Reported-by: Johan Hovold Signed-off-by: Byungchul Park Cc: Linus Torvalds Cc: Peter Zijlstra Cc: amir73il@gmail.com Cc: axboe@kernel.dk Cc: darrick.wong@oracle.com Cc: david@fromorbit.com Cc: hch@infradead.org Cc: idryomov@gmail.com Cc: johannes.berg@intel.com Cc: kernel-team@lge.com Cc: linux-block@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org Cc: linux-mm@kvack.org Cc: linux-xfs@vger.kernel.org Cc: oleg@redhat.com Cc: tj@kernel.org Link: http://lkml.kernel.org/r/1508921765-15396-5-git-send-email-byungchul.park@lge.com Signed-off-by: Ingo Molnar --- Documentation/admin-guide/kernel-parameters.txt | 3 +++ kernel/locking/lockdep.c | 19 +++++++++++++++++-- 2 files changed, 20 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 05496622b4ef..f20ed5e0a720 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -709,6 +709,9 @@ It will be ignored when crashkernel=X,high is not used or memory reserved is below 4G. + crossrelease_fullstack + [KNL] Allow to record full stack trace in cross-release + cryptomgr.notests [KNL] Disable crypto self-tests diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index e36e652d996f..160b5d6df7cb 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -76,6 +76,15 @@ module_param(lock_stat, int, 0644); #define lock_stat 0 #endif +static int crossrelease_fullstack; +static int __init allow_crossrelease_fullstack(char *str) +{ + crossrelease_fullstack = 1; + return 0; +} + +early_param("crossrelease_fullstack", allow_crossrelease_fullstack); + /* * lockdep_lock: protects the lockdep graph, the hashes and the * class/list/hash allocators. @@ -4863,8 +4872,14 @@ static void add_xhlock(struct held_lock *hlock) xhlock->trace.nr_entries = 0; xhlock->trace.max_entries = MAX_XHLOCK_TRACE_ENTRIES; xhlock->trace.entries = xhlock->trace_entries; - xhlock->trace.skip = 3; - save_stack_trace(&xhlock->trace); + + if (crossrelease_fullstack) { + xhlock->trace.skip = 3; + save_stack_trace(&xhlock->trace); + } else { + xhlock->trace.nr_entries = 1; + xhlock->trace.entries[0] = hlock->acquire_ip; + } } static inline int same_context_xhlock(struct hist_lock *xhlock) -- cgit v1.2.3 From 1901142ba8d5bf9f21b86d33770be8309071c25d Mon Sep 17 00:00:00 2001 From: Sean Wang Date: Mon, 23 Oct 2017 15:16:44 +0800 Subject: dt-bindings: rtc: mediatek: add bindings for MediaTek SoC based RTC Add device-tree binding for MediaTek SoC based RTC Cc: devicetree@vger.kernel.org Signed-off-by: Sean Wang Acked-by: Rob Herring Signed-off-by: Alexandre Belloni --- .../devicetree/bindings/rtc/rtc-mt7622.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/rtc-mt7622.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/rtc/rtc-mt7622.txt b/Documentation/devicetree/bindings/rtc/rtc-mt7622.txt new file mode 100644 index 000000000000..09fe8f51476f --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/rtc-mt7622.txt @@ -0,0 +1,21 @@ +Device-Tree bindings for MediaTek SoC based RTC + +Required properties: +- compatible : Should be + "mediatek,mt7622-rtc", "mediatek,soc-rtc" : for MT7622 SoC +- reg : Specifies base physical address and size of the registers; +- interrupts : Should contain the interrupt for RTC alarm; +- clocks : Specifies list of clock specifiers, corresponding to + entries in clock-names property; +- clock-names : Should contain "rtc" entries + +Example: + +rtc: rtc@10212800 { + compatible = "mediatek,mt7622-rtc", + "mediatek,soc-rtc"; + reg = <0 0x10212800 0 0x200>; + interrupts = ; + clocks = <&topckgen CLK_TOP_RTC>; + clock-names = "rtc"; +}; -- cgit v1.2.3 From 7e577a17f2eefeef32f1106ebf91e7cd143ba654 Mon Sep 17 00:00:00 2001 From: Ahmet Inan Date: Sat, 14 Oct 2017 10:10:53 -0700 Subject: Input: add I2C attached EETI EXC3000 multi touch driver The 3000 series have a new protocol which allows to report up to 5 points in a single 66 byte frame. One must always read in 66 byte frames. To support up to 10 points, two consecutive frames need to be read: The first frame says how many points until sync. The second frame must say zero points or both frames must be discarded. To be able to work with the higher 400KHz I2C bus rate, one must successfully send a special package prior _each_ read or the controller will refuse to cooperate. This is a minimal implementation based on egalax_i2c.c (which can be found on the internet) and egalax_ts.c but without the vendor interface and no power management support. Signed-off-by: Ahmet Inan Acked-by: Rob Herring Signed-off-by: Dmitry Torokhov --- .../bindings/input/touchscreen/exc3000.txt | 27 +++ drivers/input/touchscreen/Kconfig | 10 + drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/exc3000.c | 223 +++++++++++++++++++++ 4 files changed, 261 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/exc3000.txt create mode 100644 drivers/input/touchscreen/exc3000.c (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/input/touchscreen/exc3000.txt b/Documentation/devicetree/bindings/input/touchscreen/exc3000.txt new file mode 100644 index 000000000000..1dcff4a43eaa --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/exc3000.txt @@ -0,0 +1,27 @@ +* EETI EXC3000 Multiple Touch Controller + +Required properties: +- compatible: must be "eeti,exc3000" +- reg: i2c slave address +- interrupt-parent: the phandle for the interrupt controller +- interrupts: touch controller interrupt +- touchscreen-size-x: See touchscreen.txt +- touchscreen-size-y: See touchscreen.txt + +Optional properties: +- touchscreen-inverted-x: See touchscreen.txt +- touchscreen-inverted-y: See touchscreen.txt +- touchscreen-swapped-x-y: See touchscreen.txt + +Example: + + touchscreen@2a { + compatible = "eeti,exc3000"; + reg = <0x2a>; + interrupt-parent = <&gpio1>; + interrupts = <9 IRQ_TYPE_LEVEL_LOW>; + touchscreen-size-x = <4096>; + touchscreen-size-y = <4096>; + touchscreen-inverted-x; + touchscreen-swapped-x-y; + }; diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 16cadc149bbc..26a66bc7b2df 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -316,6 +316,16 @@ config TOUCHSCREEN_EGALAX_SERIAL To compile this driver as a module, choose M here: the module will be called egalax_ts_serial. +config TOUCHSCREEN_EXC3000 + tristate "EETI EXC3000 multi-touch panel support" + depends on I2C + help + Say Y here to enable support for I2C connected EETI + EXC3000 multi-touch panels. + + To compile this driver as a module, choose M here: the + module will be called exc3000. + config TOUCHSCREEN_FUJITSU tristate "Fujitsu serial touchscreen" select SERIO diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 6badce87037b..a129df6b2300 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -37,6 +37,7 @@ obj-$(CONFIG_TOUCHSCREEN_ELAN) += elants_i2c.o obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o obj-$(CONFIG_TOUCHSCREEN_EGALAX) += egalax_ts.o obj-$(CONFIG_TOUCHSCREEN_EGALAX_SERIAL) += egalax_ts_serial.o +obj-$(CONFIG_TOUCHSCREEN_EXC3000) += exc3000.o obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o obj-$(CONFIG_TOUCHSCREEN_GOODIX) += goodix.o obj-$(CONFIG_TOUCHSCREEN_ILI210X) += ili210x.o diff --git a/drivers/input/touchscreen/exc3000.c b/drivers/input/touchscreen/exc3000.c new file mode 100644 index 000000000000..37437a53cd1a --- /dev/null +++ b/drivers/input/touchscreen/exc3000.c @@ -0,0 +1,223 @@ +/* + * Driver for I2C connected EETI EXC3000 multiple touch controller + * + * Copyright (C) 2017 Ahmet Inan + * + * minimal implementation based on egalax_ts.c and egalax_i2c.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define EXC3000_NUM_SLOTS 10 +#define EXC3000_SLOTS_PER_FRAME 5 +#define EXC3000_LEN_FRAME 66 +#define EXC3000_LEN_POINT 10 +#define EXC3000_MT_EVENT 6 +#define EXC3000_TIMEOUT_MS 100 + +struct exc3000_data { + struct i2c_client *client; + struct input_dev *input; + struct touchscreen_properties prop; + struct timer_list timer; + u8 buf[2 * EXC3000_LEN_FRAME]; +}; + +static void exc3000_report_slots(struct input_dev *input, + struct touchscreen_properties *prop, + const u8 *buf, int num) +{ + for (; num--; buf += EXC3000_LEN_POINT) { + if (buf[0] & BIT(0)) { + input_mt_slot(input, buf[1]); + input_mt_report_slot_state(input, MT_TOOL_FINGER, true); + touchscreen_report_pos(input, prop, + get_unaligned_le16(buf + 2), + get_unaligned_le16(buf + 4), + true); + } + } +} + +static void exc3000_timer(struct timer_list *t) +{ + struct exc3000_data *data = from_timer(data, t, timer); + + input_mt_sync_frame(data->input); + input_sync(data->input); +} + +static int exc3000_read_frame(struct i2c_client *client, u8 *buf) +{ + int ret; + + ret = i2c_master_send(client, "'", 2); + if (ret < 0) + return ret; + + if (ret != 2) + return -EIO; + + ret = i2c_master_recv(client, buf, EXC3000_LEN_FRAME); + if (ret < 0) + return ret; + + if (ret != EXC3000_LEN_FRAME) + return -EIO; + + if (get_unaligned_le16(buf) != EXC3000_LEN_FRAME || + buf[2] != EXC3000_MT_EVENT) + return -EINVAL; + + return 0; +} + +static int exc3000_read_data(struct i2c_client *client, + u8 *buf, int *n_slots) +{ + int error; + + error = exc3000_read_frame(client, buf); + if (error) + return error; + + *n_slots = buf[3]; + if (!*n_slots || *n_slots > EXC3000_NUM_SLOTS) + return -EINVAL; + + if (*n_slots > EXC3000_SLOTS_PER_FRAME) { + /* Read 2nd frame to get the rest of the contacts. */ + error = exc3000_read_frame(client, buf + EXC3000_LEN_FRAME); + if (error) + return error; + + /* 2nd chunk must have number of contacts set to 0. */ + if (buf[EXC3000_LEN_FRAME + 3] != 0) + return -EINVAL; + } + + return 0; +} + +static irqreturn_t exc3000_interrupt(int irq, void *dev_id) +{ + struct exc3000_data *data = dev_id; + struct input_dev *input = data->input; + u8 *buf = data->buf; + int slots, total_slots; + int error; + + error = exc3000_read_data(data->client, buf, &total_slots); + if (error) { + /* Schedule a timer to release "stuck" contacts */ + mod_timer(&data->timer, + jiffies + msecs_to_jiffies(EXC3000_TIMEOUT_MS)); + goto out; + } + + /* + * We read full state successfully, no contacts will be "stuck". + */ + del_timer_sync(&data->timer); + + while (total_slots > 0) { + slots = min(total_slots, EXC3000_SLOTS_PER_FRAME); + exc3000_report_slots(input, &data->prop, buf + 4, slots); + total_slots -= slots; + buf += EXC3000_LEN_FRAME; + } + + input_mt_sync_frame(input); + input_sync(input); + +out: + return IRQ_HANDLED; +} + +static int exc3000_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct exc3000_data *data; + struct input_dev *input; + int error; + + data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->client = client; + timer_setup(&data->timer, exc3000_timer, 0); + + input = devm_input_allocate_device(&client->dev); + if (!input) + return -ENOMEM; + + data->input = input; + + input->name = "EETI EXC3000 Touch Screen"; + input->id.bustype = BUS_I2C; + + input_set_abs_params(input, ABS_MT_POSITION_X, 0, 4095, 0, 0); + input_set_abs_params(input, ABS_MT_POSITION_Y, 0, 4095, 0, 0); + touchscreen_parse_properties(input, true, &data->prop); + + error = input_mt_init_slots(input, EXC3000_NUM_SLOTS, + INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED); + if (error) + return error; + + error = input_register_device(input); + if (error) + return error; + + error = devm_request_threaded_irq(&client->dev, client->irq, + NULL, exc3000_interrupt, IRQF_ONESHOT, + client->name, data); + if (error) + return error; + + return 0; +} + +static const struct i2c_device_id exc3000_id[] = { + { "exc3000", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, exc3000_id); + +#ifdef CONFIG_OF +static const struct of_device_id exc3000_of_match[] = { + { .compatible = "eeti,exc3000" }, + { } +}; +MODULE_DEVICE_TABLE(of, exc3000_of_match); +#endif + +static struct i2c_driver exc3000_driver = { + .driver = { + .name = "exc3000", + .of_match_table = of_match_ptr(exc3000_of_match), + }, + .id_table = exc3000_id, + .probe = exc3000_probe, +}; + +module_i2c_driver(exc3000_driver); + +MODULE_AUTHOR("Ahmet Inan "); +MODULE_DESCRIPTION("I2C connected EETI EXC3000 multiple touch controller driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From 50be28a654ff04b282dfcb06ad5d0b20556242cb Mon Sep 17 00:00:00 2001 From: Andreas Färber Date: Sun, 1 Oct 2017 15:45:52 +0200 Subject: dt-bindings: Add vendor prefix for MeLE MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit MeLE is a Chinese manufacturer of TV boxes and Mini PCs. Cc: meleservice@mele.cn Acked-by: Rob Herring Signed-off-by: Andreas Färber --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index d17d01a160de..3618b23fa067 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -197,6 +197,7 @@ mcube mCube meas Measurement Specialties mediatek MediaTek Inc. megachips MegaChips +mele Shenzhen MeLE Digital Technology Ltd. melexis Melexis N.V. melfas MELFAS Inc. mellanox Mellanox Technologies -- cgit v1.2.3 From d109cbf1842fbfca57ab33323ca63be48a8efa53 Mon Sep 17 00:00:00 2001 From: Andreas Färber Date: Mon, 16 Oct 2017 04:45:54 +0200 Subject: dt-bindings: arm: realtek: Document MeLE V9 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Define a compatible string for MeLE V9 Media Player. Cc: meleservice@mele.cn Acked-by: Rob Herring Signed-off-by: Andreas Färber --- Documentation/devicetree/bindings/arm/realtek.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/realtek.txt b/Documentation/devicetree/bindings/arm/realtek.txt index 297c15eb81e2..95839e19ae92 100644 --- a/Documentation/devicetree/bindings/arm/realtek.txt +++ b/Documentation/devicetree/bindings/arm/realtek.txt @@ -12,6 +12,7 @@ Required root node properties: Root node property compatible must contain, depending on board: + - MeLE V9: "mele,v9" - ProBox2 AVA: "probox2,ava" - Zidoo X9S: "zidoo,x9s" -- cgit v1.2.3 From 3fa30ae9ff4a29e677b4800036f755517a27dd9e Mon Sep 17 00:00:00 2001 From: Marco Franchi Date: Wed, 25 Oct 2017 15:24:50 -0200 Subject: ASoC: sgtl5000: Remove leading zero from '@0a' notation Improve the binding example by removing the leading 0 from '@0a' notation, which fixes the following build warning: Warning (unit_address_format): Node /sgtl5000@0a unit name should not have leading 0s Signed-off-by: Marco Franchi Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/sgtl5000.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/sgtl5000.txt b/Documentation/devicetree/bindings/sound/sgtl5000.txt index 7a73a9d62015..060cb4a3b47e 100644 --- a/Documentation/devicetree/bindings/sound/sgtl5000.txt +++ b/Documentation/devicetree/bindings/sound/sgtl5000.txt @@ -37,7 +37,7 @@ VDDIO 1.8V 2.5V 3.3V Example: -codec: sgtl5000@0a { +codec: sgtl5000@a { compatible = "fsl,sgtl5000"; reg = <0x0a>; clocks = <&clks 150>; -- cgit v1.2.3 From 26284ca918e4e271bae4e96129fc3791b9bf0983 Mon Sep 17 00:00:00 2001 From: Marco Franchi Date: Wed, 25 Oct 2017 16:57:13 -0200 Subject: ASoC: pfuze100: Remove leading zero from '@08' notation Improve the binding example by removing the leading 0 from '@08' notation, which fixes the following build warnings: Warning (unit_address_format): Node /pfuze100@08 unit name should not have leading 0s Warning (unit_address_format): Node /pfuze200@08 unit name should not have leading 0s Warning (unit_address_format): Node /pfuze3000@08 unit name should not have leading 0s Signed-off-by: Marco Franchi Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/regulator/pfuze100.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/regulator/pfuze100.txt b/Documentation/devicetree/bindings/regulator/pfuze100.txt index 444c47831a40..c6dd3f5e485b 100644 --- a/Documentation/devicetree/bindings/regulator/pfuze100.txt +++ b/Documentation/devicetree/bindings/regulator/pfuze100.txt @@ -21,7 +21,7 @@ Each regulator is defined using the standard binding for regulators. Example 1: PFUZE100 - pmic: pfuze100@08 { + pmic: pfuze100@8 { compatible = "fsl,pfuze100"; reg = <0x08>; @@ -122,7 +122,7 @@ Example 1: PFUZE100 Example 2: PFUZE200 - pmic: pfuze200@08 { + pmic: pfuze200@8 { compatible = "fsl,pfuze200"; reg = <0x08>; @@ -216,7 +216,7 @@ Example 2: PFUZE200 Example 3: PFUZE3000 - pmic: pfuze3000@08 { + pmic: pfuze3000@8 { compatible = "fsl,pfuze3000"; reg = <0x08>; -- cgit v1.2.3 From d41bf8c9deaed1a90b18d3ffc5639d4c19f0259a Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 23 Oct 2017 16:18:27 -0700 Subject: cgroup, sched: Move basic cpu stats from cgroup.stat to cpu.stat The basic cpu stat is currently shown with "cpu." prefix in cgroup.stat, and the same information is duplicated in cpu.stat when cpu controller is enabled. This is ugly and not very scalable as we want to expand the coverage of stat information which is always available. This patch makes cgroup core always create "cpu.stat" file and show the basic cpu stat there and calls the cpu controller to show the extra stats when enabled. This ensures that the same information isn't presented in multiple places and makes future expansion of basic stats easier. Signed-off-by: Tejun Heo Acked-by: Peter Zijlstra (Intel) --- Documentation/cgroup-v2.txt | 15 ++++------- include/linux/cgroup-defs.h | 2 ++ include/linux/cgroup.h | 2 -- kernel/cgroup/cgroup-internal.h | 1 + kernel/cgroup/cgroup.c | 60 +++++++++++++++++++++++++++++++++++++++-- kernel/cgroup/stat.c | 10 +++---- kernel/sched/core.c | 13 +++------ 7 files changed, 75 insertions(+), 28 deletions(-) (limited to 'Documentation') diff --git a/Documentation/cgroup-v2.txt b/Documentation/cgroup-v2.txt index 0bbdc720dd7c..779211fbb69f 100644 --- a/Documentation/cgroup-v2.txt +++ b/Documentation/cgroup-v2.txt @@ -886,15 +886,6 @@ All cgroup core files are prefixed with "cgroup." A dying cgroup can consume system resources not exceeding limits, which were active at the moment of cgroup deletion. - cpu.usage_usec - CPU time consumed in the subtree. - - cpu.user_usec - User CPU time consumed in the subtree. - - cpu.system_usec - System CPU time consumed in the subtree. - Controllers =========== @@ -915,12 +906,16 @@ All time durations are in microseconds. cpu.stat A read-only flat-keyed file which exists on non-root cgroups. + This file exists whether the controller is enabled or not. - It reports the following six stats: + It always reports the following three stats: - usage_usec - user_usec - system_usec + + and the following three when the controller is enabled: + - nr_periods - nr_throttled - throttled_usec diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index 3e55bbd31ad1..ada6df7b1f55 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -569,6 +569,8 @@ struct cgroup_subsys { void (*css_released)(struct cgroup_subsys_state *css); void (*css_free)(struct cgroup_subsys_state *css); void (*css_reset)(struct cgroup_subsys_state *css); + int (*css_extra_stat_show)(struct seq_file *seq, + struct cgroup_subsys_state *css); int (*can_attach)(struct cgroup_taskset *tset); void (*cancel_attach)(struct cgroup_taskset *tset); diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 328a70ce0e23..03cad08b09d1 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -703,8 +703,6 @@ static inline void cpuacct_account_field(struct task_struct *tsk, int index, u64 val) {} #endif -void cgroup_stat_show_cputime(struct seq_file *seq, const char *prefix); - void __cgroup_account_cputime(struct cgroup *cgrp, u64 delta_exec); void __cgroup_account_cputime_field(struct cgroup *cgrp, enum cpu_usage_stat index, u64 delta_exec); diff --git a/kernel/cgroup/cgroup-internal.h b/kernel/cgroup/cgroup-internal.h index fa642c99586a..4dc317090920 100644 --- a/kernel/cgroup/cgroup-internal.h +++ b/kernel/cgroup/cgroup-internal.h @@ -205,6 +205,7 @@ int cgroup_task_count(const struct cgroup *cgrp); void cgroup_stat_flush(struct cgroup *cgrp); int cgroup_stat_init(struct cgroup *cgrp); void cgroup_stat_exit(struct cgroup *cgrp); +void cgroup_stat_show_cputime(struct seq_file *seq); void cgroup_stat_boot(void); /* diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index 7975b20f1fd1..d9773e49a1b4 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -463,6 +463,28 @@ static struct cgroup_subsys_state *cgroup_css(struct cgroup *cgrp, return &cgrp->self; } +/** + * cgroup_tryget_css - try to get a cgroup's css for the specified subsystem + * @cgrp: the cgroup of interest + * @ss: the subsystem of interest + * + * Find and get @cgrp's css assocaited with @ss. If the css doesn't exist + * or is offline, %NULL is returned. + */ +static struct cgroup_subsys_state *cgroup_tryget_css(struct cgroup *cgrp, + struct cgroup_subsys *ss) +{ + struct cgroup_subsys_state *css; + + rcu_read_lock(); + css = cgroup_css(cgrp, ss); + if (!css || !css_tryget_online(css)) + css = NULL; + rcu_read_unlock(); + + return css; +} + /** * cgroup_e_css - obtain a cgroup's effective css for the specified subsystem * @cgrp: the cgroup of interest @@ -3311,11 +3333,40 @@ static int cgroup_stat_show(struct seq_file *seq, void *v) seq_printf(seq, "nr_dying_descendants %d\n", cgroup->nr_dying_descendants); - cgroup_stat_show_cputime(seq, "cpu."); - return 0; } +static int __maybe_unused cgroup_extra_stat_show(struct seq_file *seq, + struct cgroup *cgrp, int ssid) +{ + struct cgroup_subsys *ss = cgroup_subsys[ssid]; + struct cgroup_subsys_state *css; + int ret; + + if (!ss->css_extra_stat_show) + return 0; + + css = cgroup_tryget_css(cgrp, ss); + if (!css) + return 0; + + ret = ss->css_extra_stat_show(seq, css); + css_put(css); + return ret; +} + +static int cpu_stat_show(struct seq_file *seq, void *v) +{ + struct cgroup *cgrp = seq_css(seq)->cgroup; + int ret = 0; + + cgroup_stat_show_cputime(seq); +#ifdef CONFIG_CGROUP_SCHED + ret = cgroup_extra_stat_show(seq, cgrp, cpu_cgrp_id); +#endif + return ret; +} + static int cgroup_file_open(struct kernfs_open_file *of) { struct cftype *cft = of->kn->priv; @@ -4423,6 +4474,11 @@ static struct cftype cgroup_base_files[] = { .name = "cgroup.stat", .seq_show = cgroup_stat_show, }, + { + .name = "cpu.stat", + .flags = CFTYPE_NOT_ON_ROOT, + .seq_show = cpu_stat_show, + }, { } /* terminate */ }; diff --git a/kernel/cgroup/stat.c b/kernel/cgroup/stat.c index 9cce79e89320..133b465691d6 100644 --- a/kernel/cgroup/stat.c +++ b/kernel/cgroup/stat.c @@ -256,7 +256,7 @@ void __cgroup_account_cputime_field(struct cgroup *cgrp, cgroup_cpu_stat_account_end(cgrp, cstat); } -void cgroup_stat_show_cputime(struct seq_file *seq, const char *prefix) +void cgroup_stat_show_cputime(struct seq_file *seq) { struct cgroup *cgrp = seq_css(seq)->cgroup; u64 usage, utime, stime; @@ -278,10 +278,10 @@ void cgroup_stat_show_cputime(struct seq_file *seq, const char *prefix) do_div(utime, NSEC_PER_USEC); do_div(stime, NSEC_PER_USEC); - seq_printf(seq, "%susage_usec %llu\n" - "%suser_usec %llu\n" - "%ssystem_usec %llu\n", - prefix, usage, prefix, utime, prefix, stime); + seq_printf(seq, "usage_usec %llu\n" + "user_usec %llu\n" + "system_usec %llu\n", + usage, utime, stime); } int cgroup_stat_init(struct cgroup *cgrp) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index ad255162a830..0b3eec389552 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6678,13 +6678,12 @@ static struct cftype cpu_legacy_files[] = { { } /* Terminate */ }; -static int cpu_stat_show(struct seq_file *sf, void *v) +static int cpu_extra_stat_show(struct seq_file *sf, + struct cgroup_subsys_state *css) { - cgroup_stat_show_cputime(sf, ""); - #ifdef CONFIG_CFS_BANDWIDTH { - struct task_group *tg = css_tg(seq_css(sf)); + struct task_group *tg = css_tg(css); struct cfs_bandwidth *cfs_b = &tg->cfs_bandwidth; u64 throttled_usec; @@ -6817,11 +6816,6 @@ static ssize_t cpu_max_write(struct kernfs_open_file *of, #endif static struct cftype cpu_files[] = { - { - .name = "stat", - .flags = CFTYPE_NOT_ON_ROOT, - .seq_show = cpu_stat_show, - }, #ifdef CONFIG_FAIR_GROUP_SCHED { .name = "weight", @@ -6852,6 +6846,7 @@ struct cgroup_subsys cpu_cgrp_subsys = { .css_online = cpu_cgroup_css_online, .css_released = cpu_cgroup_css_released, .css_free = cpu_cgroup_css_free, + .css_extra_stat_show = cpu_extra_stat_show, .fork = cpu_cgroup_fork, .can_attach = cpu_cgroup_can_attach, .attach = cpu_cgroup_attach, -- cgit v1.2.3 From b2b60bcc7d0940f02858b1721499df9674f685e5 Mon Sep 17 00:00:00 2001 From: Leon Luo Date: Thu, 5 Oct 2017 02:06:20 +0200 Subject: media: imx274: device tree binding file MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The binding file for imx274 CMOS sensor V4l2 driver Signed-off-by: Leon Luo Acked-by: Sören Brinkmann Acked-by: Rob Herring Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- .../devicetree/bindings/media/i2c/imx274.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/imx274.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/i2c/imx274.txt b/Documentation/devicetree/bindings/media/i2c/imx274.txt new file mode 100644 index 000000000000..80f2e89568e1 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/imx274.txt @@ -0,0 +1,33 @@ +* Sony 1/2.5-Inch 8.51Mp CMOS Digital Image Sensor + +The Sony imx274 is a 1/2.5-inch CMOS active pixel digital image sensor with +an active array size of 3864H x 2202V. It is programmable through I2C +interface. The I2C address is fixed to 0x1a as per sensor data sheet. +Image data is sent through MIPI CSI-2, which is configured as 4 lanes +at 1440 Mbps. + + +Required Properties: +- compatible: value should be "sony,imx274" for imx274 sensor +- reg: I2C bus address of the device + +Optional Properties: +- reset-gpios: Sensor reset GPIO + +The imx274 device node should contain one 'port' child node with +an 'endpoint' subnode. For further reading on port node refer to +Documentation/devicetree/bindings/media/video-interfaces.txt. + +Example: + sensor@1a { + compatible = "sony,imx274"; + reg = <0x1a>; + #address-cells = <1>; + #size-cells = <0>; + reset-gpios = <&gpio_sensor 0 0>; + port { + sensor_out: endpoint { + remote-endpoint = <&csiss_in>; + }; + }; + }; -- cgit v1.2.3 From d524b8fc75f1ad8132b6661b48a8cbfba37ecc2b Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 15 Jul 2017 10:51:24 +0200 Subject: media: dt-bindings: document the tegra CEC bindings This documents the binding for the Tegra CEC module. Signed-off-by: Hans Verkuil Acked-by: Rob Herring Acked-by: Thierry Reding Signed-off-by: Mauro Carvalho Chehab --- .../devicetree/bindings/media/tegra-cec.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/tegra-cec.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/tegra-cec.txt b/Documentation/devicetree/bindings/media/tegra-cec.txt new file mode 100644 index 000000000000..c503f06f3b84 --- /dev/null +++ b/Documentation/devicetree/bindings/media/tegra-cec.txt @@ -0,0 +1,27 @@ +* Tegra HDMI CEC hardware + +The HDMI CEC module is present in Tegra SoCs and its purpose is to +handle communication between HDMI connected devices over the CEC bus. + +Required properties: + - compatible : value should be one of the following: + "nvidia,tegra114-cec" + "nvidia,tegra124-cec" + "nvidia,tegra210-cec" + - reg : Physical base address of the IP registers and length of memory + mapped region. + - interrupts : HDMI CEC interrupt number to the CPU. + - clocks : from common clock binding: handle to HDMI CEC clock. + - clock-names : from common clock binding: must contain "cec", + corresponding to the entry in the clocks property. + - hdmi-phandle : phandle to the HDMI controller, see also cec.txt. + +Example: + +cec@70015000 { + compatible = "nvidia,tegra124-cec"; + reg = <0x0 0x70015000 0x0 0x00001000>; + interrupts = ; + clocks = <&tegra_car TEGRA124_CLK_CEC>; + clock-names = "cec"; +}; -- cgit v1.2.3 From fcc046801b934ad27ba80e20e3e0f4c97957af58 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 21 Sep 2017 14:52:29 +0200 Subject: dt-bindings: i2c: i2c-mux: spelling s/required is/required if/ Fix both instances. Signed-off-by: Geert Uytterhoeven Signed-off-by: Peter Rosin --- Documentation/devicetree/bindings/i2c/i2c-mux.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux.txt b/Documentation/devicetree/bindings/i2c/i2c-mux.txt index 212e6779dc5c..b38f58a1c878 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mux.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-mux.txt @@ -6,10 +6,10 @@ multiplexer/switch will have one child node for each child bus. Optional properties: - #address-cells = <1>; - This property is required is the i2c-mux child node does not exist. + This property is required if the i2c-mux child node does not exist. - #size-cells = <0>; - This property is required is the i2c-mux child node does not exist. + This property is required if the i2c-mux child node does not exist. - i2c-mux For i2c multiplexers/switches that have child nodes that are a mixture -- cgit v1.2.3 From 69d17246ab255dda8e71c8d65396b4aa6121b7ad Mon Sep 17 00:00:00 2001 From: Phil Reid Date: Thu, 24 Aug 2017 17:31:03 +0800 Subject: i2c: i2c-smbus: add of_i2c_setup_smbus_alert This commit adds of_i2c_setup_smbus_alert which allows the smbalert driver to be attached to an i2c adapter via the device tree. Signed-off-by: Phil Reid Acked-by: Rob Herring Signed-off-by: Wolfram Sang --- Documentation/devicetree/bindings/i2c/i2c.txt | 4 ++-- drivers/i2c/i2c-core-smbus.c | 22 ++++++++++++++++++++++ drivers/i2c/i2c-smbus.c | 10 +++++++++- include/linux/i2c-smbus.h | 9 +++++++++ 4 files changed, 42 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentation/devicetree/bindings/i2c/i2c.txt index cee9d5055fa2..11263982470e 100644 --- a/Documentation/devicetree/bindings/i2c/i2c.txt +++ b/Documentation/devicetree/bindings/i2c/i2c.txt @@ -59,8 +59,8 @@ wants to support one of the below features, it should adapt the bindings below. interrupts used by the device. - interrupt-names - "irq" and "wakeup" names are recognized by I2C core, other names are - left to individual drivers. + "irq", "wakeup" and "smbus_alert" names are recognized by I2C core, + other names are left to individual drivers. - host-notify device uses SMBus host notify protocol instead of interrupt line. diff --git a/drivers/i2c/i2c-core-smbus.c b/drivers/i2c/i2c-core-smbus.c index 7f3ec02f085a..4bb9927afd01 100644 --- a/drivers/i2c/i2c-core-smbus.c +++ b/drivers/i2c/i2c-core-smbus.c @@ -625,3 +625,25 @@ struct i2c_client *i2c_setup_smbus_alert(struct i2c_adapter *adapter, return i2c_new_device(adapter, &ara_board_info); } EXPORT_SYMBOL_GPL(i2c_setup_smbus_alert); + +#if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED(CONFIG_OF) +int of_i2c_setup_smbus_alert(struct i2c_adapter *adapter) +{ + struct i2c_client *client; + int irq; + + irq = of_property_match_string(adapter->dev.of_node, "interrupt-names", + "smbus_alert"); + if (irq == -EINVAL || irq == -ENODATA) + return 0; + else if (irq < 0) + return irq; + + client = i2c_setup_smbus_alert(adapter, NULL); + if (!client) + return -ENODEV; + + return 0; +} +EXPORT_SYMBOL_GPL(of_i2c_setup_smbus_alert); +#endif diff --git a/drivers/i2c/i2c-smbus.c b/drivers/i2c/i2c-smbus.c index d0bb0358b578..5a1dd7f13bac 100644 --- a/drivers/i2c/i2c-smbus.c +++ b/drivers/i2c/i2c-smbus.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include @@ -139,7 +140,14 @@ static int smbalert_probe(struct i2c_client *ara, if (!alert) return -ENOMEM; - irq = setup->irq; + if (setup) { + irq = setup->irq; + } else { + irq = of_irq_get_byname(adapter->dev.of_node, "smbus_alert"); + if (irq <= 0) + return irq; + } + INIT_WORK(&alert->alert, smbalert_work); alert->ara = ara; diff --git a/include/linux/i2c-smbus.h b/include/linux/i2c-smbus.h index 19efbd14e812..fb0e040b1abb 100644 --- a/include/linux/i2c-smbus.h +++ b/include/linux/i2c-smbus.h @@ -49,4 +49,13 @@ struct i2c_client *i2c_setup_smbus_alert(struct i2c_adapter *adapter, struct i2c_smbus_alert_setup *setup); int i2c_handle_smbus_alert(struct i2c_client *ara); +#if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED(CONFIG_OF) +int of_i2c_setup_smbus_alert(struct i2c_adapter *adap); +#else +static inline int of_i2c_setup_smbus_alert(struct i2c_adapter *adap) +{ + return 0; +} +#endif + #endif /* _LINUX_I2C_SMBUS_H */ -- cgit v1.2.3 From 26b61a652f6d52ec9c14f6be7c5a854a4fe831ae Mon Sep 17 00:00:00 2001 From: Karl-Heinz Schneider Date: Thu, 24 Aug 2017 17:31:07 +0800 Subject: Documentation: Add sbs-manager device tree node documentation This patch adds device tree documentation for the sbs-manager Signed-off-by: Karl-Heinz Schneider Signed-off-by: Phil Reid Acked-by: Rob Herring Reviewed-by: Sebastian Reichel Signed-off-by: Wolfram Sang --- .../bindings/power/supply/sbs,sbs-manager.txt | 66 ++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt b/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt new file mode 100644 index 000000000000..4b2195571a49 --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt @@ -0,0 +1,66 @@ +Binding for sbs-manager + +Required properties: +- compatible: ",", "sbs,sbs-charger" as fallback. The part + number compatible string might be used in order to take care of vendor + specific registers. +- reg: integer, i2c address of the device. Should be <0xa>. +Optional properties: +- gpio-controller: Marks the port as GPIO controller. + See "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt. +- #gpio-cells: Should be <2>. The first cell is the pin number, the second cell + is used to specify optional parameters: + See "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt. + +From OS view the device is basically an i2c-mux used to communicate with up to +four smart battery devices at address 0xb. The driver actually implements this +behaviour. So standard i2c-mux nodes can be used to register up to four slave +batteries. Channels will be numerated starting from 1 to 4. + +Example: + +batman@a { + compatible = "lltc,ltc1760", "sbs,sbs-manager"; + reg = <0x0a>; + #address-cells = <1>; + #size-cells = <0>; + + gpio-controller; + #gpio-cells = <2>; + + i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + + battery@b { + compatible = "ti,bq2060", "sbs,sbs-battery"; + reg = <0x0b>; + sbs,battery-detect-gpios = <&batman 1 1>; + }; + }; + + i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + + battery@b { + compatible = "ti,bq2060", "sbs,sbs-battery"; + reg = <0x0b>; + sbs,battery-detect-gpios = <&batman 2 1>; + }; + }; + + i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + + battery@b { + compatible = "ti,bq2060", "sbs,sbs-battery"; + reg = <0x0b>; + sbs,battery-detect-gpios = <&batman 3 1>; + }; + }; +}; -- cgit v1.2.3 From a190d04db93710ae166749055b6985397c6d13f5 Mon Sep 17 00:00:00 2001 From: Mahesh Bandewar Date: Thu, 26 Oct 2017 15:09:21 -0700 Subject: ipvlan: introduce 'private' attribute for all existing modes. IPvlan has always operated in bridge mode. However there are scenarios where each slave should be able to talk through the master device but not necessarily across each other. Think of an environment where each of a namespace is a private and independant customer. In this scenario the machine which is hosting these namespaces neither want to tell who their neighbor is nor the individual namespaces care to talk to neighbor on short-circuited network path. This patch implements the mode that is very similar to the 'private' mode in macvlan where individual slaves can send and receive traffic through the master device, just that they can not talk among slave devices. Signed-off-by: Mahesh Bandewar Signed-off-by: David S. Miller --- Documentation/networking/ipvlan.txt | 30 ++++++++++++++++++++++++++--- drivers/net/ipvlan/ipvlan.h | 16 ++++++++++++++++ drivers/net/ipvlan/ipvlan_core.c | 15 ++++++++++++--- drivers/net/ipvlan/ipvlan_main.c | 38 +++++++++++++++++++++++++++++++++++-- include/uapi/linux/if_link.h | 3 +++ 5 files changed, 94 insertions(+), 8 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/ipvlan.txt b/Documentation/networking/ipvlan.txt index 1fe42a874aae..bfa91c77a4c9 100644 --- a/Documentation/networking/ipvlan.txt +++ b/Documentation/networking/ipvlan.txt @@ -22,9 +22,19 @@ The driver can be built into the kernel (CONFIG_IPVLAN=y) or as a module There are no module parameters for this driver and it can be configured using IProute2/ip utility. - ip link add link name type ipvlan mode { l2 | l3 | l3s } + ip link add link name type ipvlan [ mode MODE ] [ FLAGS ] + where + MODE: l3 (default) | l3s | l2 + FLAGS: bridge (default) | private - e.g. ip link add link eth0 name ipvl0 type ipvlan mode l2 + e.g. + (a) Following will create IPvlan link with eth0 as master in + L3 bridge mode + bash# ip link add link eth0 name ipvl0 type ipvlan + (b) This command will create IPvlan link in L2 bridge mode. + bash# ip link add link eth0 name ipvl0 type ipvlan mode l2 bridge + (c) This command will create an IPvlan device in L2 private mode. + bash# ip link add link eth0 name ipvlan type ipvlan mode l2 private 4. Operating modes: @@ -54,7 +64,21 @@ works in this mode and hence it is L3-symmetric (L3s). This will have slightly l performance but that shouldn't matter since you are choosing this mode over plain-L3 mode to make conn-tracking work. -5. What to choose (macvlan vs. ipvlan)? +5. Mode flags: + At this time following mode flags are available + +5.1 bridge: + This is the default option. To configure the IPvlan port in this mode, +user can choose to either add this option on the command-line or don't specify +anything. This is the traditional mode where slaves can cross-talk among +themseleves apart from talking through the master device. + +5.2 private: + If this option is added to the command-line, the port is set in private +mode. i.e. port wont allow cross communication between slaves. + + +6. What to choose (macvlan vs. ipvlan)? These two devices are very similar in many regards and the specific use case could very well define which device to choose. if one of the following situations defines your use case then you can choose to use ipvlan - diff --git a/drivers/net/ipvlan/ipvlan.h b/drivers/net/ipvlan/ipvlan.h index ba8173a0b62e..9941851bcc13 100644 --- a/drivers/net/ipvlan/ipvlan.h +++ b/drivers/net/ipvlan/ipvlan.h @@ -96,6 +96,7 @@ struct ipvl_port { struct hlist_head hlhead[IPVLAN_HASH_SIZE]; struct list_head ipvlans; u16 mode; + u16 flags; u16 dev_id_start; struct work_struct wq; struct sk_buff_head backlog; @@ -123,6 +124,21 @@ static inline struct ipvl_port *ipvlan_port_get_rtnl(const struct net_device *d) return rtnl_dereference(d->rx_handler_data); } +static inline bool ipvlan_is_private(const struct ipvl_port *port) +{ + return !!(port->flags & IPVLAN_F_PRIVATE); +} + +static inline void ipvlan_mark_private(struct ipvl_port *port) +{ + port->flags |= IPVLAN_F_PRIVATE; +} + +static inline void ipvlan_clear_private(struct ipvl_port *port) +{ + port->flags &= ~IPVLAN_F_PRIVATE; +} + void ipvlan_init_secret(void); unsigned int ipvlan_mac_hash(const unsigned char *addr); rx_handler_result_t ipvlan_handle_frame(struct sk_buff **pskb); diff --git a/drivers/net/ipvlan/ipvlan_core.c b/drivers/net/ipvlan/ipvlan_core.c index 1f3295e274d0..72fd56de9c00 100644 --- a/drivers/net/ipvlan/ipvlan_core.c +++ b/drivers/net/ipvlan/ipvlan_core.c @@ -515,9 +515,13 @@ static int ipvlan_xmit_mode_l3(struct sk_buff *skb, struct net_device *dev) goto out; addr = ipvlan_addr_lookup(ipvlan->port, lyr3h, addr_type, true); - if (addr) + if (addr) { + if (ipvlan_is_private(ipvlan->port)) { + consume_skb(skb); + return NET_XMIT_DROP; + } return ipvlan_rcv_frame(addr, &skb, true); - + } out: ipvlan_skb_crossing_ns(skb, ipvlan->phy_dev); return ipvlan_process_outbound(skb); @@ -535,8 +539,13 @@ static int ipvlan_xmit_mode_l2(struct sk_buff *skb, struct net_device *dev) lyr3h = ipvlan_get_L3_hdr(skb, &addr_type); if (lyr3h) { addr = ipvlan_addr_lookup(ipvlan->port, lyr3h, addr_type, true); - if (addr) + if (addr) { + if (ipvlan_is_private(ipvlan->port)) { + consume_skb(skb); + return NET_XMIT_DROP; + } return ipvlan_rcv_frame(addr, &skb, true); + } } skb = skb_share_check(skb, GFP_ATOMIC); if (!skb) diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c index f0ab55df57f1..4368afb1934c 100644 --- a/drivers/net/ipvlan/ipvlan_main.c +++ b/drivers/net/ipvlan/ipvlan_main.c @@ -462,11 +462,24 @@ static int ipvlan_nl_changelink(struct net_device *dev, struct ipvl_port *port = ipvlan_port_get_rtnl(ipvlan->phy_dev); int err = 0; - if (data && data[IFLA_IPVLAN_MODE]) { + if (!data) + return 0; + + if (data[IFLA_IPVLAN_MODE]) { u16 nmode = nla_get_u16(data[IFLA_IPVLAN_MODE]); err = ipvlan_set_port_mode(port, nmode); } + + if (!err && data[IFLA_IPVLAN_FLAGS]) { + u16 flags = nla_get_u16(data[IFLA_IPVLAN_FLAGS]); + + if (flags & IPVLAN_F_PRIVATE) + ipvlan_mark_private(port); + else + ipvlan_clear_private(port); + } + return err; } @@ -474,18 +487,30 @@ static size_t ipvlan_nl_getsize(const struct net_device *dev) { return (0 + nla_total_size(2) /* IFLA_IPVLAN_MODE */ + + nla_total_size(2) /* IFLA_IPVLAN_FLAGS */ ); } static int ipvlan_nl_validate(struct nlattr *tb[], struct nlattr *data[], struct netlink_ext_ack *extack) { - if (data && data[IFLA_IPVLAN_MODE]) { + if (!data) + return 0; + + if (data[IFLA_IPVLAN_MODE]) { u16 mode = nla_get_u16(data[IFLA_IPVLAN_MODE]); if (mode < IPVLAN_MODE_L2 || mode >= IPVLAN_MODE_MAX) return -EINVAL; } + if (data[IFLA_IPVLAN_FLAGS]) { + u16 flags = nla_get_u16(data[IFLA_IPVLAN_FLAGS]); + + /* Only one bit is used at this moment. */ + if (flags & ~IPVLAN_F_PRIVATE) + return -EINVAL; + } + return 0; } @@ -502,6 +527,8 @@ static int ipvlan_nl_fillinfo(struct sk_buff *skb, ret = -EMSGSIZE; if (nla_put_u16(skb, IFLA_IPVLAN_MODE, port->mode)) goto err; + if (nla_put_u16(skb, IFLA_IPVLAN_FLAGS, port->flags)) + goto err; return 0; @@ -549,6 +576,12 @@ int ipvlan_link_new(struct net *src_net, struct net_device *dev, ipvlan_adjust_mtu(ipvlan, phy_dev); INIT_LIST_HEAD(&ipvlan->addrs); + /* Flags are per port and latest update overrides. User has + * to be consistent in setting it just like the mode attribute. + */ + if (data && data[IFLA_IPVLAN_FLAGS]) + ipvlan->port->flags = nla_get_u16(data[IFLA_IPVLAN_FLAGS]); + /* If the port-id base is at the MAX value, then wrap it around and * begin from 0x1 again. This may be due to a busy system where lots * of slaves are getting created and deleted. @@ -644,6 +677,7 @@ EXPORT_SYMBOL_GPL(ipvlan_link_setup); static const struct nla_policy ipvlan_nl_policy[IFLA_IPVLAN_MAX + 1] = { [IFLA_IPVLAN_MODE] = { .type = NLA_U16 }, + [IFLA_IPVLAN_FLAGS] = { .type = NLA_U16 }, }; static struct rtnl_link_ops ipvlan_link_ops = { diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index b037e0ab1975..052e32cd584c 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -465,6 +465,7 @@ enum macsec_validation_type { enum { IFLA_IPVLAN_UNSPEC, IFLA_IPVLAN_MODE, + IFLA_IPVLAN_FLAGS, __IFLA_IPVLAN_MAX }; @@ -477,6 +478,8 @@ enum ipvlan_mode { IPVLAN_MODE_MAX }; +#define IPVLAN_F_PRIVATE 0x01 + /* VXLAN section */ enum { IFLA_VXLAN_UNSPEC, -- cgit v1.2.3 From fe89aa6b250c1011ccf425fbb7998e96bd54263f Mon Sep 17 00:00:00 2001 From: Mahesh Bandewar Date: Thu, 26 Oct 2017 15:09:25 -0700 Subject: ipvlan: implement VEPA mode This is very similar to the Macvlan VEPA mode, however, there is some difference. IPvlan uses the mac-address of the lower device, so the VEPA mode has implications of ICMP-redirects for packets destined for its immediate neighbors sharing same master since the packets will have same source and dest mac. The external switch/router will send redirect msg. Having said that, this will be useful tool in terms of debugging since IPvlan will not switch packets within its slaves and rely completely on the external entity as intended in 802.1Qbg. Signed-off-by: Mahesh Bandewar Signed-off-by: David S. Miller --- Documentation/networking/ipvlan.txt | 12 +++++++++++- drivers/net/ipvlan/ipvlan.h | 15 +++++++++++++++ drivers/net/ipvlan/ipvlan_core.c | 17 ++++++++++------- drivers/net/ipvlan/ipvlan_main.c | 13 +++++++++++-- include/uapi/linux/if_link.h | 1 + 5 files changed, 48 insertions(+), 10 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/ipvlan.txt b/Documentation/networking/ipvlan.txt index bfa91c77a4c9..812ef003e0a8 100644 --- a/Documentation/networking/ipvlan.txt +++ b/Documentation/networking/ipvlan.txt @@ -25,7 +25,7 @@ using IProute2/ip utility. ip link add link name type ipvlan [ mode MODE ] [ FLAGS ] where MODE: l3 (default) | l3s | l2 - FLAGS: bridge (default) | private + FLAGS: bridge (default) | private | vepa e.g. (a) Following will create IPvlan link with eth0 as master in @@ -35,6 +35,8 @@ using IProute2/ip utility. bash# ip link add link eth0 name ipvl0 type ipvlan mode l2 bridge (c) This command will create an IPvlan device in L2 private mode. bash# ip link add link eth0 name ipvlan type ipvlan mode l2 private + (d) This command will create an IPvlan device in L2 vepa mode. + bash# ip link add link eth0 name ipvlan type ipvlan mode l2 vepa 4. Operating modes: @@ -77,6 +79,14 @@ themseleves apart from talking through the master device. If this option is added to the command-line, the port is set in private mode. i.e. port wont allow cross communication between slaves. +5.3 vepa: + If this is added to the command-line, the port is set in VEPA mode. +i.e. port will offload switching functionality to the external entity as +described in 802.1Qbg +Note: VEPA mode in IPvlan has limitations. IPvlan uses the mac-address of the +master-device, so the packets which are emitted in this mode for the adjacent +neighbor will have source and destination mac same. This will make the switch / +router send the redirect message. 6. What to choose (macvlan vs. ipvlan)? These two devices are very similar in many regards and the specific use diff --git a/drivers/net/ipvlan/ipvlan.h b/drivers/net/ipvlan/ipvlan.h index 9941851bcc13..5166575a164d 100644 --- a/drivers/net/ipvlan/ipvlan.h +++ b/drivers/net/ipvlan/ipvlan.h @@ -139,6 +139,21 @@ static inline void ipvlan_clear_private(struct ipvl_port *port) port->flags &= ~IPVLAN_F_PRIVATE; } +static inline bool ipvlan_is_vepa(const struct ipvl_port *port) +{ + return !!(port->flags & IPVLAN_F_VEPA); +} + +static inline void ipvlan_mark_vepa(struct ipvl_port *port) +{ + port->flags |= IPVLAN_F_VEPA; +} + +static inline void ipvlan_clear_vepa(struct ipvl_port *port) +{ + port->flags &= ~IPVLAN_F_VEPA; +} + void ipvlan_init_secret(void); unsigned int ipvlan_mac_hash(const unsigned char *addr); rx_handler_result_t ipvlan_handle_frame(struct sk_buff **pskb); diff --git a/drivers/net/ipvlan/ipvlan_core.c b/drivers/net/ipvlan/ipvlan_core.c index 72fd56de9c00..034ae4c57196 100644 --- a/drivers/net/ipvlan/ipvlan_core.c +++ b/drivers/net/ipvlan/ipvlan_core.c @@ -514,13 +514,15 @@ static int ipvlan_xmit_mode_l3(struct sk_buff *skb, struct net_device *dev) if (!lyr3h) goto out; - addr = ipvlan_addr_lookup(ipvlan->port, lyr3h, addr_type, true); - if (addr) { - if (ipvlan_is_private(ipvlan->port)) { - consume_skb(skb); - return NET_XMIT_DROP; + if (!ipvlan_is_vepa(ipvlan->port)) { + addr = ipvlan_addr_lookup(ipvlan->port, lyr3h, addr_type, true); + if (addr) { + if (ipvlan_is_private(ipvlan->port)) { + consume_skb(skb); + return NET_XMIT_DROP; + } + return ipvlan_rcv_frame(addr, &skb, true); } - return ipvlan_rcv_frame(addr, &skb, true); } out: ipvlan_skb_crossing_ns(skb, ipvlan->phy_dev); @@ -535,7 +537,8 @@ static int ipvlan_xmit_mode_l2(struct sk_buff *skb, struct net_device *dev) void *lyr3h; int addr_type; - if (ether_addr_equal(eth->h_dest, eth->h_source)) { + if (!ipvlan_is_vepa(ipvlan->port) && + ether_addr_equal(eth->h_dest, eth->h_source)) { lyr3h = ipvlan_get_L3_hdr(skb, &addr_type); if (lyr3h) { addr = ipvlan_addr_lookup(ipvlan->port, lyr3h, addr_type, true); diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c index 4368afb1934c..a266aa435d4d 100644 --- a/drivers/net/ipvlan/ipvlan_main.c +++ b/drivers/net/ipvlan/ipvlan_main.c @@ -478,6 +478,11 @@ static int ipvlan_nl_changelink(struct net_device *dev, ipvlan_mark_private(port); else ipvlan_clear_private(port); + + if (flags & IPVLAN_F_VEPA) + ipvlan_mark_vepa(port); + else + ipvlan_clear_vepa(port); } return err; @@ -506,8 +511,12 @@ static int ipvlan_nl_validate(struct nlattr *tb[], struct nlattr *data[], if (data[IFLA_IPVLAN_FLAGS]) { u16 flags = nla_get_u16(data[IFLA_IPVLAN_FLAGS]); - /* Only one bit is used at this moment. */ - if (flags & ~IPVLAN_F_PRIVATE) + /* Only two bits are used at this moment. */ + if (flags & ~(IPVLAN_F_PRIVATE | IPVLAN_F_VEPA)) + return -EINVAL; + /* Also both flags can't be active at the same time. */ + if ((flags & (IPVLAN_F_PRIVATE | IPVLAN_F_VEPA)) == + (IPVLAN_F_PRIVATE | IPVLAN_F_VEPA)) return -EINVAL; } diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index 052e32cd584c..81f26473d728 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -479,6 +479,7 @@ enum ipvlan_mode { }; #define IPVLAN_F_PRIVATE 0x01 +#define IPVLAN_F_VEPA 0x02 /* VXLAN section */ enum { -- cgit v1.2.3 From 8fca9e95243128961357577ba394ec1d4bd8c92c Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Sat, 28 Oct 2017 18:40:17 +0200 Subject: dt-bindings: power: add amlogic meson power domain bindings Acked-by: Rob Herring Signed-off-by: Neil Armstrong [khilman: minor whitespace fixups] Signed-off-by: Kevin Hilman --- .../bindings/power/amlogic,meson-gx-pwrc.txt | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt b/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt new file mode 100644 index 000000000000..1cd050b4054c --- /dev/null +++ b/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt @@ -0,0 +1,61 @@ +Amlogic Meson Power Controller +============================== + +The Amlogic Meson SoCs embeds an internal Power domain controller. + +VPU Power Domain +---------------- + +The Video Processing Unit power domain is controlled by this power controller, +but the domain requires some external resources to meet the correct power +sequences. +The bindings must respect the power domain bindings as described in the file +power_domain.txt + +Device Tree Bindings: +--------------------- + +Required properties: +- compatible: should be "amlogic,meson-gx-pwrc-vpu" for the Meson GX SoCs +- #power-domain-cells: should be 0 +- amlogic,hhi-sysctrl: phandle to the HHI sysctrl node +- resets: phandles to the reset lines needed for this power demain sequence + as described in ../reset/reset.txt +- clocks: from common clock binding: handle to VPU and VAPB clocks +- clock-names: from common clock binding: must contain "vpu", "vapb" + corresponding to entry in the clocks property. + +Parent node should have the following properties : +- compatible: "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd" +- reg: base address and size of the AO system control register space. + +Example: +------- + +ao_sysctrl: sys-ctrl@0 { + compatible = "amlogic,meson-gx-ao-sysctrl", "syscon", "simple-mfd"; + reg = <0x0 0x0 0x0 0x100>; + + pwrc_vpu: power-controller-vpu { + compatible = "amlogic,meson-gx-pwrc-vpu"; + #power-domain-cells = <0>; + amlogic,hhi-sysctrl = <&sysctrl>; + resets = <&reset RESET_VIU>, + <&reset RESET_VENC>, + <&reset RESET_VCBUS>, + <&reset RESET_BT656>, + <&reset RESET_DVIN_RESET>, + <&reset RESET_RDMA>, + <&reset RESET_VENCI>, + <&reset RESET_VENCP>, + <&reset RESET_VDAC>, + <&reset RESET_VDI6>, + <&reset RESET_VENCL>, + <&reset RESET_VID_LOCK>; + clocks = <&clkc CLKID_VPU>, + <&clkc CLKID_VAPB>; + clock-names = "vpu", "vapb"; + }; +}; + + -- cgit v1.2.3 From 9c52aaf756ecaec195517e17875b136eb4d176bf Mon Sep 17 00:00:00 2001 From: Carlo Caione Date: Sun, 17 Sep 2017 18:45:18 +0200 Subject: dt-bindings: Amlogic: Add Meson8 and Meson8b SMP related documentation With this patch we add documentation for: * power-management-unit: the PMU is used to bring up the cores during SMP operations * sram: among other things the sram is used to store the first code executed by the core when it is powered up * cpu-enable-method: the CPU enable method used by Amlogic Meson8 and Meson8b SoCs Signed-off-by: Carlo Caione [also add Meson8 to the documentation] Signed-off-by: Martin Blumenstingl Acked-by: Rob Herring Signed-off-by: Kevin Hilman --- .../devicetree/bindings/arm/amlogic/pmu.txt | 18 ++++++++++++ .../devicetree/bindings/arm/amlogic/smp-sram.txt | 32 ++++++++++++++++++++++ Documentation/devicetree/bindings/arm/cpus.txt | 2 ++ 3 files changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/amlogic/pmu.txt create mode 100644 Documentation/devicetree/bindings/arm/amlogic/smp-sram.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/amlogic/pmu.txt b/Documentation/devicetree/bindings/arm/amlogic/pmu.txt new file mode 100644 index 000000000000..72f8d08198b6 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/amlogic/pmu.txt @@ -0,0 +1,18 @@ +Amlogic Meson8 and Meson8b power-management-unit: +------------------------------------------------- + +The pmu is used to turn off and on different power domains of the SoCs +This includes the power to the CPU cores. + +Required node properties: +- compatible value : depending on the SoC this should be one of: + "amlogic,meson8-pmu" + "amlogic,meson8b-pmu" +- reg : physical base address and the size of the registers window + +Example: + + pmu@c81000e4 { + compatible = "amlogic,meson8b-pmu", "syscon"; + reg = <0xc81000e0 0x18>; + }; diff --git a/Documentation/devicetree/bindings/arm/amlogic/smp-sram.txt b/Documentation/devicetree/bindings/arm/amlogic/smp-sram.txt new file mode 100644 index 000000000000..3473ddaadfac --- /dev/null +++ b/Documentation/devicetree/bindings/arm/amlogic/smp-sram.txt @@ -0,0 +1,32 @@ +Amlogic Meson8 and Meson8b SRAM for smp bringup: +------------------------------------------------ + +Amlogic's SMP-capable SoCs use part of the sram for the bringup of the cores. +Once the core gets powered up it executes the code that is residing at a +specific location. + +Therefore a reserved section sub-node has to be added to the mmio-sram +declaration. + +Required sub-node properties: +- compatible : depending on the SoC this should be one of: + "amlogic,meson8-smp-sram" + "amlogic,meson8b-smp-sram" + +The rest of the properties should follow the generic mmio-sram discription +found in ../../misc/sram.txt + +Example: + + sram: sram@d9000000 { + compatible = "mmio-sram"; + reg = <0xd9000000 0x20000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0xd9000000 0x20000>; + + smp-sram@1ff80 { + compatible = "amlogic,meson8b-smp-sram"; + reg = <0x1ff80 0x8>; + }; + }; diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt index b92f12bd5244..a0009b72e9be 100644 --- a/Documentation/devicetree/bindings/arm/cpus.txt +++ b/Documentation/devicetree/bindings/arm/cpus.txt @@ -197,6 +197,8 @@ described below. "actions,s500-smp" "allwinner,sun6i-a31" "allwinner,sun8i-a23" + "amlogic,meson8-smp" + "amlogic,meson8b-smp" "arm,realview-smp" "brcm,bcm11351-cpu-method" "brcm,bcm23550" -- cgit v1.2.3 From 282e45dc64d1832c9b51d2c6f6eb0a634c924fa7 Mon Sep 17 00:00:00 2001 From: Philipp Puschmann Date: Thu, 19 Oct 2017 10:12:47 +0200 Subject: mtd: spi-nor: Add support for mr25h128 Add Everspin mr25h128 16KB MRAM to the list of supported chips. Signed-off-by: Philipp Puschmann Signed-off-by: Cyrille Pitchen --- Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt | 1 + drivers/mtd/devices/m25p80.c | 1 + drivers/mtd/spi-nor/spi-nor.c | 1 + 3 files changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt index 9ce35af8507c..956bb046e599 100644 --- a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt +++ b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt @@ -13,6 +13,7 @@ Required properties: at25df321a at25df641 at26df081a + mr25h128 mr25h256 mr25h10 mr25h40 diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 00eea6fd379c..dbe6a1de2bb8 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -359,6 +359,7 @@ static const struct spi_device_id m25p_ids[] = { {"m25p32-nonjedec"}, {"m25p64-nonjedec"}, {"m25p128-nonjedec"}, /* Everspin MRAMs (non-JEDEC) */ + { "mr25h128" }, /* 128 Kib, 40 MHz */ { "mr25h256" }, /* 256 Kib, 40 MHz */ { "mr25h10" }, /* 1 Mib, 40 MHz */ { "mr25h40" }, /* 4 Mib, 40 MHz */ diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 31d308ab51cd..bc266f70a15b 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -968,6 +968,7 @@ static const struct flash_info spi_nor_ids[] = { { "f25l64qa", INFO(0x8c4117, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_HAS_LOCK) }, /* Everspin */ + { "mr25h128", CAT25_INFO( 16 * 1024, 1, 256, 2, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) }, { "mr25h256", CAT25_INFO( 32 * 1024, 1, 256, 2, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) }, { "mr25h10", CAT25_INFO(128 * 1024, 1, 256, 3, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) }, { "mr25h40", CAT25_INFO(512 * 1024, 1, 256, 3, SPI_NOR_NO_ERASE | SPI_NOR_NO_FR) }, -- cgit v1.2.3 From 186731145f920fb1514200043bcaf9c689693857 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Sun, 10 Sep 2017 11:44:46 +0200 Subject: hwmon: (sht15) Root out platform data After finding out there are active users of this sensor I noticed: - It has a single PXA27x board file using the platform data - The platform data is only used to carry two GPIO pins, all other fields are unused - The driver does not use GPIO descriptors but the legacy GPIO API I saw we can swiftly fix this by: - Killing off the platform data entirely - Define a GPIO descriptor lookup table in the board file - Use the standard devm_gpiod_get() to grab the GPIO descriptors from either the device tree or the board file table. This compiles, but needs testing. Cc: arm@kernel.org Cc: Marco Franchi Cc: Davide Hug Cc: Jonathan Cameron Signed-off-by: Linus Walleij Acked-by: Arnd Bergmann Tested-by: Marco Franchi Acked-by: Arnd Bergmann Signed-off-by: Guenter Roeck --- Documentation/hwmon/sht15 | 3 +- arch/arm/mach-pxa/stargate2.c | 17 ++-- drivers/hwmon/sht15.c | 167 ++++++++++++------------------------ include/linux/platform_data/sht15.h | 38 -------- 4 files changed, 65 insertions(+), 160 deletions(-) delete mode 100644 include/linux/platform_data/sht15.h (limited to 'Documentation') diff --git a/Documentation/hwmon/sht15 b/Documentation/hwmon/sht15 index 778987d1856f..5e3207c3b177 100644 --- a/Documentation/hwmon/sht15 +++ b/Documentation/hwmon/sht15 @@ -42,8 +42,7 @@ chip. These coefficients are used to internally calibrate the signals from the sensors. Disabling the reload of those coefficients allows saving 10ms for each measurement and decrease power consumption, while losing on precision. -Some options may be set directly in the sht15_platform_data structure -or via sysfs attributes. +Some options may be set via sysfs attributes. Notes: * The regulator supply name is set to "vcc". diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c index 2d45d18b1a5e..6b7df6fd2448 100644 --- a/arch/arm/mach-pxa/stargate2.c +++ b/arch/arm/mach-pxa/stargate2.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include @@ -52,7 +53,6 @@ #include #include #include -#include #include "devices.h" #include "generic.h" @@ -137,17 +137,18 @@ static unsigned long sg2_im2_unified_pin_config[] __initdata = { GPIO10_GPIO, /* large basic connector pin 23 */ }; -static struct sht15_platform_data platform_data_sht15 = { - .gpio_data = 100, - .gpio_sck = 98, +static struct gpiod_lookup_table sht15_gpiod_table = { + .dev_id = "sht15", + .table = { + /* FIXME: should this have |GPIO_OPEN_DRAIN set? */ + GPIO_LOOKUP("gpio-pxa", 100, "data", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-pxa", 98, "clk", GPIO_ACTIVE_HIGH), + }, }; static struct platform_device sht15 = { .name = "sht15", .id = -1, - .dev = { - .platform_data = &platform_data_sht15, - }, }; static struct regulator_consumer_supply stargate2_sensor_3_con[] = { @@ -608,6 +609,7 @@ static void __init imote2_init(void) imote2_stargate2_init(); + gpiod_add_lookup_table(&sht15_gpiod_table); platform_add_devices(imote2_devices, ARRAY_SIZE(imote2_devices)); i2c_register_board_info(0, imote2_i2c_board_info, @@ -988,6 +990,7 @@ static void __init stargate2_init(void) imote2_stargate2_init(); + gpiod_add_lookup_table(&sht15_gpiod_table); platform_add_devices(ARRAY_AND_SIZE(stargate2_devices)); i2c_register_board_info(0, ARRAY_AND_SIZE(stargate2_i2c_board_info)); diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c index e4d642b673c6..0e3e5f83f5cf 100644 --- a/drivers/hwmon/sht15.c +++ b/drivers/hwmon/sht15.c @@ -18,13 +18,11 @@ #include #include -#include #include #include #include #include #include -#include #include #include #include @@ -34,7 +32,8 @@ #include #include #include -#include +#include +#include /* Commands */ #define SHT15_MEASURE_TEMP 0x03 @@ -122,7 +121,8 @@ static const u8 sht15_crc8_table[] = { /** * struct sht15_data - device instance specific data - * @pdata: platform data (gpio's etc). + * @sck: clock GPIO line + * @data: data GPIO line * @read_work: bh of interrupt handler. * @wait_queue: wait queue for getting values from device. * @val_temp: last temperature value read from device. @@ -150,7 +150,8 @@ static const u8 sht15_crc8_table[] = { * @interrupt_handled: flag used to indicate a handler has been scheduled. */ struct sht15_data { - struct sht15_platform_data *pdata; + struct gpio_desc *sck; + struct gpio_desc *data; struct work_struct read_work; wait_queue_head_t wait_queue; uint16_t val_temp; @@ -205,16 +206,16 @@ static int sht15_connection_reset(struct sht15_data *data) { int i, err; - err = gpio_direction_output(data->pdata->gpio_data, 1); + err = gpiod_direction_output(data->data, 1); if (err) return err; ndelay(SHT15_TSCKL); - gpio_set_value(data->pdata->gpio_sck, 0); + gpiod_set_value(data->sck, 0); ndelay(SHT15_TSCKL); for (i = 0; i < 9; ++i) { - gpio_set_value(data->pdata->gpio_sck, 1); + gpiod_set_value(data->sck, 1); ndelay(SHT15_TSCKH); - gpio_set_value(data->pdata->gpio_sck, 0); + gpiod_set_value(data->sck, 0); ndelay(SHT15_TSCKL); } return 0; @@ -227,11 +228,11 @@ static int sht15_connection_reset(struct sht15_data *data) */ static inline void sht15_send_bit(struct sht15_data *data, int val) { - gpio_set_value(data->pdata->gpio_data, val); + gpiod_set_value(data->data, val); ndelay(SHT15_TSU); - gpio_set_value(data->pdata->gpio_sck, 1); + gpiod_set_value(data->sck, 1); ndelay(SHT15_TSCKH); - gpio_set_value(data->pdata->gpio_sck, 0); + gpiod_set_value(data->sck, 0); ndelay(SHT15_TSCKL); /* clock low time */ } @@ -248,23 +249,23 @@ static int sht15_transmission_start(struct sht15_data *data) int err; /* ensure data is high and output */ - err = gpio_direction_output(data->pdata->gpio_data, 1); + err = gpiod_direction_output(data->data, 1); if (err) return err; ndelay(SHT15_TSU); - gpio_set_value(data->pdata->gpio_sck, 0); + gpiod_set_value(data->sck, 0); ndelay(SHT15_TSCKL); - gpio_set_value(data->pdata->gpio_sck, 1); + gpiod_set_value(data->sck, 1); ndelay(SHT15_TSCKH); - gpio_set_value(data->pdata->gpio_data, 0); + gpiod_set_value(data->data, 0); ndelay(SHT15_TSU); - gpio_set_value(data->pdata->gpio_sck, 0); + gpiod_set_value(data->sck, 0); ndelay(SHT15_TSCKL); - gpio_set_value(data->pdata->gpio_sck, 1); + gpiod_set_value(data->sck, 1); ndelay(SHT15_TSCKH); - gpio_set_value(data->pdata->gpio_data, 1); + gpiod_set_value(data->data, 1); ndelay(SHT15_TSU); - gpio_set_value(data->pdata->gpio_sck, 0); + gpiod_set_value(data->sck, 0); ndelay(SHT15_TSCKL); return 0; } @@ -292,20 +293,20 @@ static int sht15_wait_for_response(struct sht15_data *data) { int err; - err = gpio_direction_input(data->pdata->gpio_data); + err = gpiod_direction_input(data->data); if (err) return err; - gpio_set_value(data->pdata->gpio_sck, 1); + gpiod_set_value(data->sck, 1); ndelay(SHT15_TSCKH); - if (gpio_get_value(data->pdata->gpio_data)) { - gpio_set_value(data->pdata->gpio_sck, 0); + if (gpiod_get_value(data->data)) { + gpiod_set_value(data->sck, 0); dev_err(data->dev, "Command not acknowledged\n"); err = sht15_connection_reset(data); if (err) return err; return -EIO; } - gpio_set_value(data->pdata->gpio_sck, 0); + gpiod_set_value(data->sck, 0); ndelay(SHT15_TSCKL); return 0; } @@ -360,17 +361,17 @@ static int sht15_ack(struct sht15_data *data) { int err; - err = gpio_direction_output(data->pdata->gpio_data, 0); + err = gpiod_direction_output(data->data, 0); if (err) return err; ndelay(SHT15_TSU); - gpio_set_value(data->pdata->gpio_sck, 1); + gpiod_set_value(data->sck, 1); ndelay(SHT15_TSU); - gpio_set_value(data->pdata->gpio_sck, 0); + gpiod_set_value(data->sck, 0); ndelay(SHT15_TSU); - gpio_set_value(data->pdata->gpio_data, 1); + gpiod_set_value(data->data, 1); - return gpio_direction_input(data->pdata->gpio_data); + return gpiod_direction_input(data->data); } /** @@ -383,13 +384,13 @@ static int sht15_end_transmission(struct sht15_data *data) { int err; - err = gpio_direction_output(data->pdata->gpio_data, 1); + err = gpiod_direction_output(data->data, 1); if (err) return err; ndelay(SHT15_TSU); - gpio_set_value(data->pdata->gpio_sck, 1); + gpiod_set_value(data->sck, 1); ndelay(SHT15_TSCKH); - gpio_set_value(data->pdata->gpio_sck, 0); + gpiod_set_value(data->sck, 0); ndelay(SHT15_TSCKL); return 0; } @@ -405,10 +406,10 @@ static u8 sht15_read_byte(struct sht15_data *data) for (i = 0; i < 8; ++i) { byte <<= 1; - gpio_set_value(data->pdata->gpio_sck, 1); + gpiod_set_value(data->sck, 1); ndelay(SHT15_TSCKH); - byte |= !!gpio_get_value(data->pdata->gpio_data); - gpio_set_value(data->pdata->gpio_sck, 0); + byte |= !!gpiod_get_value(data->data); + gpiod_set_value(data->sck, 0); ndelay(SHT15_TSCKL); } return byte; @@ -428,7 +429,7 @@ static int sht15_send_status(struct sht15_data *data, u8 status) err = sht15_send_cmd(data, SHT15_WRITE_STATUS); if (err) return err; - err = gpio_direction_output(data->pdata->gpio_data, 1); + err = gpiod_direction_output(data->data, 1); if (err) return err; ndelay(SHT15_TSU); @@ -528,14 +529,14 @@ static int sht15_measurement(struct sht15_data *data, if (ret) return ret; - ret = gpio_direction_input(data->pdata->gpio_data); + ret = gpiod_direction_input(data->data); if (ret) return ret; atomic_set(&data->interrupt_handled, 0); - enable_irq(gpio_to_irq(data->pdata->gpio_data)); - if (gpio_get_value(data->pdata->gpio_data) == 0) { - disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data)); + enable_irq(gpiod_to_irq(data->data)); + if (gpiod_get_value(data->data) == 0) { + disable_irq_nosync(gpiod_to_irq(data->data)); /* Only relevant if the interrupt hasn't occurred. */ if (!atomic_read(&data->interrupt_handled)) schedule_work(&data->read_work); @@ -547,7 +548,7 @@ static int sht15_measurement(struct sht15_data *data, data->state = SHT15_READING_NOTHING; return -EIO; } else if (ret == 0) { /* timeout occurred */ - disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data)); + disable_irq_nosync(gpiod_to_irq(data->data)); ret = sht15_connection_reset(data); if (ret) return ret; @@ -826,15 +827,15 @@ static void sht15_bh_read_data(struct work_struct *work_s) read_work); /* Firstly, verify the line is low */ - if (gpio_get_value(data->pdata->gpio_data)) { + if (gpiod_get_value(data->data)) { /* * If not, then start the interrupt again - care here as could * have gone low in meantime so verify it hasn't! */ atomic_set(&data->interrupt_handled, 0); - enable_irq(gpio_to_irq(data->pdata->gpio_data)); + enable_irq(gpiod_to_irq(data->data)); /* If still not occurred or another handler was scheduled */ - if (gpio_get_value(data->pdata->gpio_data) + if (gpiod_get_value(data->data) || atomic_read(&data->interrupt_handled)) return; } @@ -918,46 +919,6 @@ static const struct of_device_id sht15_dt_match[] = { { }, }; MODULE_DEVICE_TABLE(of, sht15_dt_match); - -/* - * This function returns NULL if pdev isn't a device instatiated by dt, - * a pointer to pdata if it could successfully get all information - * from dt or a negative ERR_PTR() on error. - */ -static struct sht15_platform_data *sht15_probe_dt(struct device *dev) -{ - struct device_node *np = dev->of_node; - struct sht15_platform_data *pdata; - - /* no device tree device */ - if (!np) - return NULL; - - pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) - return ERR_PTR(-ENOMEM); - - pdata->gpio_data = of_get_named_gpio(np, "data-gpios", 0); - if (pdata->gpio_data < 0) { - if (pdata->gpio_data != -EPROBE_DEFER) - dev_err(dev, "data-gpios not found\n"); - return ERR_PTR(pdata->gpio_data); - } - - pdata->gpio_sck = of_get_named_gpio(np, "clk-gpios", 0); - if (pdata->gpio_sck < 0) { - if (pdata->gpio_sck != -EPROBE_DEFER) - dev_err(dev, "clk-gpios not found\n"); - return ERR_PTR(pdata->gpio_sck); - } - - return pdata; -} -#else -static inline struct sht15_platform_data *sht15_probe_dt(struct device *dev) -{ - return NULL; -} #endif static int sht15_probe(struct platform_device *pdev) @@ -977,25 +938,6 @@ static int sht15_probe(struct platform_device *pdev) data->dev = &pdev->dev; init_waitqueue_head(&data->wait_queue); - data->pdata = sht15_probe_dt(&pdev->dev); - if (IS_ERR(data->pdata)) - return PTR_ERR(data->pdata); - if (data->pdata == NULL) { - data->pdata = dev_get_platdata(&pdev->dev); - if (data->pdata == NULL) { - dev_err(&pdev->dev, "no platform data supplied\n"); - return -EINVAL; - } - } - - data->supply_uv = data->pdata->supply_mv * 1000; - if (data->pdata->checksum) - data->checksumming = true; - if (data->pdata->no_otp_reload) - status |= SHT15_STATUS_NO_OTP_RELOAD; - if (data->pdata->low_resolution) - status |= SHT15_STATUS_LOW_RESOLUTION; - /* * If a regulator is available, * query what the supply voltage actually is! @@ -1030,21 +972,20 @@ static int sht15_probe(struct platform_device *pdev) } /* Try requesting the GPIOs */ - ret = devm_gpio_request_one(&pdev->dev, data->pdata->gpio_sck, - GPIOF_OUT_INIT_LOW, "SHT15 sck"); - if (ret) { + data->sck = devm_gpiod_get(&pdev->dev, "clk", GPIOD_OUT_LOW); + if (IS_ERR(data->sck)) { + ret = PTR_ERR(data->sck); dev_err(&pdev->dev, "clock line GPIO request failed\n"); goto err_release_reg; } - - ret = devm_gpio_request(&pdev->dev, data->pdata->gpio_data, - "SHT15 data"); - if (ret) { + data->data = devm_gpiod_get(&pdev->dev, "data", GPIOD_IN); + if (IS_ERR(data->data)) { + ret = PTR_ERR(data->data); dev_err(&pdev->dev, "data line GPIO request failed\n"); goto err_release_reg; } - ret = devm_request_irq(&pdev->dev, gpio_to_irq(data->pdata->gpio_data), + ret = devm_request_irq(&pdev->dev, gpiod_to_irq(data->data), sht15_interrupt_fired, IRQF_TRIGGER_FALLING, "sht15 data", @@ -1053,7 +994,7 @@ static int sht15_probe(struct platform_device *pdev) dev_err(&pdev->dev, "failed to get irq for data line\n"); goto err_release_reg; } - disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data)); + disable_irq_nosync(gpiod_to_irq(data->data)); ret = sht15_connection_reset(data); if (ret) goto err_release_reg; diff --git a/include/linux/platform_data/sht15.h b/include/linux/platform_data/sht15.h deleted file mode 100644 index 12289c1e9413..000000000000 --- a/include/linux/platform_data/sht15.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * sht15.h - support for the SHT15 Temperature and Humidity Sensor - * - * Copyright (c) 2009 Jonathan Cameron - * - * Copyright (c) 2007 Wouter Horre - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * For further information, see the Documentation/hwmon/sht15 file. - */ - -#ifndef _PDATA_SHT15_H -#define _PDATA_SHT15_H - -/** - * struct sht15_platform_data - sht15 connectivity info - * @gpio_data: no. of gpio to which bidirectional data line is - * connected. - * @gpio_sck: no. of gpio to which the data clock is connected. - * @supply_mv: supply voltage in mv. Overridden by regulator if - * available. - * @checksum: flag to indicate the checksum should be validated. - * @no_otp_reload: flag to indicate no reload from OTP. - * @low_resolution: flag to indicate the temp/humidity resolution to use. - */ -struct sht15_platform_data { - int gpio_data; - int gpio_sck; - int supply_mv; - bool checksum; - bool no_otp_reload; - bool low_resolution; -}; - -#endif /* _PDATA_SHT15_H */ -- cgit v1.2.3 From 0ec54a2e8ee22b13e9a89dfd76e66e5b75ca9885 Mon Sep 17 00:00:00 2001 From: Alan Tull Date: Mon, 11 Sep 2017 14:16:48 -0500 Subject: dt-bindings: hwmon: add compatible for max1619 Add new device tree bindings document for max1619 device including a new compatible string. Signed-off-by: Alan Tull Cc: Jean Delvare Cc: Guenter Roeck Cc: Rob Herring Cc: Mark Rutland Acked-by: Rob Herring Signed-off-by: Guenter Roeck --- Documentation/devicetree/bindings/hwmon/max1619.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/max1619.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/hwmon/max1619.txt b/Documentation/devicetree/bindings/hwmon/max1619.txt new file mode 100644 index 000000000000..c70dbbe1e56f --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/max1619.txt @@ -0,0 +1,12 @@ +Bindings for MAX1619 Temperature Sensor + +Required properties: +- compatible : "maxim,max1619" +- reg : I2C address, one of 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, or + 0x4d, 0x4e + +Example: + temp@4c { + compatible = "maxim,max1619"; + reg = <0x4c>; + }; -- cgit v1.2.3 From 24fae2b5b61da0cec6b94059552ae97ccc498ccc Mon Sep 17 00:00:00 2001 From: Vadim Pasternak Date: Tue, 3 Oct 2017 18:08:28 +0000 Subject: Documentation: devicetree: add max6621 device Add device record for Maxim MAX6621 temperature sensor device. Signed-off-by: Vadim Pasternak Acked-by: Rob Herring Signed-off-by: Guenter Roeck --- Documentation/devicetree/bindings/trivial-devices.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt index af284fbd4d23..8bcac6ee73da 100644 --- a/Documentation/devicetree/bindings/trivial-devices.txt +++ b/Documentation/devicetree/bindings/trivial-devices.txt @@ -71,6 +71,7 @@ isil,isl29028 Intersil ISL29028 Ambient Light and Proximity Sensor isil,isl29030 Intersil ISL29030 Ambient Light and Proximity Sensor maxim,ds1050 5 Bit Programmable, Pulse-Width Modulator maxim,max1237 Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs +maxim,max6621 PECI-to-I2C translator for PECI-to-SMBus/I2C protocol conversion maxim,max6625 9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface mc,rv3029c2 Real Time Clock Module with I2C-Bus mcube,mc3230 mCube 3-axis 8-bit digital accelerometer -- cgit v1.2.3 From 9dfe310ed5f0802cba5ec29f2b5f5f92ba8ad9e9 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 26 Sep 2017 01:09:03 +0200 Subject: hwmon: (gpio-fan) Move DT bindings to the right place This moves the GPIO fan bindings to the hwmon bindings. The GPIO fan is a hwmon class hardware, not related to GPIO other than being a consumer of GPIOs. Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij Acked-by: Rob Herring Signed-off-by: Guenter Roeck --- .../devicetree/bindings/gpio/gpio-fan.txt | 40 ---------------------- .../devicetree/bindings/hwmon/gpio-fan.txt | 40 ++++++++++++++++++++++ 2 files changed, 40 insertions(+), 40 deletions(-) delete mode 100644 Documentation/devicetree/bindings/gpio/gpio-fan.txt create mode 100644 Documentation/devicetree/bindings/hwmon/gpio-fan.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/gpio/gpio-fan.txt b/Documentation/devicetree/bindings/gpio/gpio-fan.txt deleted file mode 100644 index 439a7430fc68..000000000000 --- a/Documentation/devicetree/bindings/gpio/gpio-fan.txt +++ /dev/null @@ -1,40 +0,0 @@ -Bindings for fan connected to GPIO lines - -Required properties: -- compatible : "gpio-fan" - -Optional properties: -- gpios: Specifies the pins that map to bits in the control value, - ordered MSB-->LSB. -- gpio-fan,speed-map: A mapping of possible fan RPM speeds and the - control value that should be set to achieve them. This array - must have the RPM values in ascending order. -- alarm-gpios: This pin going active indicates something is wrong with - the fan, and a udev event will be fired. -- cooling-cells: If used as a cooling device, must be <2> - Also see: Documentation/devicetree/bindings/thermal/thermal.txt - min and max states are derived from the speed-map of the fan. - -Note: At least one the "gpios" or "alarm-gpios" properties must be set. - -Examples: - - gpio_fan { - compatible = "gpio-fan"; - gpios = <&gpio1 14 1 - &gpio1 13 1>; - gpio-fan,speed-map = <0 0 - 3000 1 - 6000 2>; - alarm-gpios = <&gpio1 15 1>; - }; - gpio_fan_cool: gpio_fan { - compatible = "gpio-fan"; - gpios = <&gpio2 14 1 - &gpio2 13 1>; - gpio-fan,speed-map = <0 0>, - <3000 1>, - <6000 2>; - alarm-gpios = <&gpio2 15 1>; - #cooling-cells = <2>; /* min followed by max */ - }; diff --git a/Documentation/devicetree/bindings/hwmon/gpio-fan.txt b/Documentation/devicetree/bindings/hwmon/gpio-fan.txt new file mode 100644 index 000000000000..439a7430fc68 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/gpio-fan.txt @@ -0,0 +1,40 @@ +Bindings for fan connected to GPIO lines + +Required properties: +- compatible : "gpio-fan" + +Optional properties: +- gpios: Specifies the pins that map to bits in the control value, + ordered MSB-->LSB. +- gpio-fan,speed-map: A mapping of possible fan RPM speeds and the + control value that should be set to achieve them. This array + must have the RPM values in ascending order. +- alarm-gpios: This pin going active indicates something is wrong with + the fan, and a udev event will be fired. +- cooling-cells: If used as a cooling device, must be <2> + Also see: Documentation/devicetree/bindings/thermal/thermal.txt + min and max states are derived from the speed-map of the fan. + +Note: At least one the "gpios" or "alarm-gpios" properties must be set. + +Examples: + + gpio_fan { + compatible = "gpio-fan"; + gpios = <&gpio1 14 1 + &gpio1 13 1>; + gpio-fan,speed-map = <0 0 + 3000 1 + 6000 2>; + alarm-gpios = <&gpio1 15 1>; + }; + gpio_fan_cool: gpio_fan { + compatible = "gpio-fan"; + gpios = <&gpio2 14 1 + &gpio2 13 1>; + gpio-fan,speed-map = <0 0>, + <3000 1>, + <6000 2>; + alarm-gpios = <&gpio2 15 1>; + #cooling-cells = <2>; /* min followed by max */ + }; -- cgit v1.2.3 From 7d29f509d2cfd807b2fccc643ac1f7066b9b1949 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 24 Aug 2017 09:21:12 +0200 Subject: dt-bindings: i2c: i2c-gpio: Add support for named gpios The current i2c-gpio DT bindings use a single unnamed "gpios" property to refer to the SDA and SCL signal lines by index. This is error-prone for the casual DT writer and reviewer, as one has to look up the order in the DT bindings. Fix this by amending the DT bindings to use two separate named gpios properties, and deprecate the old unnamed variant. Take this opportunity to clearly deprecate the "i2c-gpio,sda-open-drain" and "i2c-gpio,scl-open-drain" flags as well. The commit describes in detail what these flags actually mean, and why they should not be used in new device trees. Cc: devicetree@vger.kernel.org Signed-off-by: Geert Uytterhoeven [Augmented to what I and Rob would like] Tested-by: Geert Uytterhoeven Acked-by: Rob Herring Signed-off-by: Linus Walleij --- Documentation/devicetree/bindings/i2c/i2c-gpio.txt | 32 ++++++++++++++++------ 1 file changed, 23 insertions(+), 9 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/i2c/i2c-gpio.txt b/Documentation/devicetree/bindings/i2c/i2c-gpio.txt index 4f8ec947c6bd..38a05562d1d2 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-gpio.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-gpio.txt @@ -2,25 +2,39 @@ Device-Tree bindings for i2c gpio driver Required properties: - compatible = "i2c-gpio"; - - gpios: sda and scl gpio - + - sda-gpios: gpio used for the sda signal, this should be flagged as + active high using open drain with (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN) + from since the signal is by definition + open drain. + - scl-gpios: gpio used for the scl signal, this should be flagged as + active high using open drain with (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN) + from since the signal is by definition + open drain. Optional properties: - - i2c-gpio,sda-open-drain: sda as open drain - - i2c-gpio,scl-open-drain: scl as open drain - i2c-gpio,scl-output-only: scl as output only - i2c-gpio,delay-us: delay between GPIO operations (may depend on each platform) - i2c-gpio,timeout-ms: timeout to get data +Deprecated properties, do not use in new device tree sources: + - gpios: sda and scl gpio, alternative for {sda,scl}-gpios + - i2c-gpio,sda-open-drain: this means that something outside of our + control has put the GPIO line used for SDA into open drain mode, and + that something is not the GPIO chip. It is essentially an + inconsistency flag. + - i2c-gpio,scl-open-drain: this means that something outside of our + control has put the GPIO line used for SCL into open drain mode, and + that something is not the GPIO chip. It is essentially an + inconsistency flag. + Example nodes: +#include + i2c@0 { compatible = "i2c-gpio"; - gpios = <&pioA 23 0 /* sda */ - &pioA 24 0 /* scl */ - >; - i2c-gpio,sda-open-drain; - i2c-gpio,scl-open-drain; + sda-gpios = <&pioA 23 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; + scl-gpios = <&pioA 24 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; i2c-gpio,delay-us = <2>; /* ~100 kHz */ #address-cells = <1>; #size-cells = <0>; -- cgit v1.2.3 From 4946b3af5e8e96f0f0ceec53701541f1faae714d Mon Sep 17 00:00:00 2001 From: Bjorn Andersson Date: Fri, 15 Sep 2017 16:35:24 -0700 Subject: mmc: sdhci-msm: Enable delay circuit calibration clocks The delay circuit used to support HS400 is calibrated based on two additional clocks. When these clocks are not available and FF_CLK_SW_RST_DIS is not set in CORE_HC_MODE, reset might fail. But on some platforms this doesn't work properly and below dump can be seen in the kernel log. mmc0: Reset 0x1 never completed. mmc0: sdhci: ============ SDHCI REGISTER DUMP =========== mmc0: sdhci: Sys addr: 0x00000000 | Version: 0x00001102 mmc0: sdhci: Blk size: 0x00004000 | Blk cnt: 0x00000000 mmc0: sdhci: Argument: 0x00000000 | Trn mode: 0x00000000 mmc0: sdhci: Present: 0x01f80000 | Host ctl: 0x00000000 mmc0: sdhci: Power: 0x00000000 | Blk gap: 0x00000000 mmc0: sdhci: Wake-up: 0x00000000 | Clock: 0x00000002 mmc0: sdhci: Timeout: 0x00000000 | Int stat: 0x00000000 mmc0: sdhci: Int enab: 0x00000000 | Sig enab: 0x00000000 mmc0: sdhci: AC12 err: 0x00000000 | Slot int: 0x00000000 mmc0: sdhci: Caps: 0x742dc8b2 | Caps_1: 0x00008007 mmc0: sdhci: Cmd: 0x00000000 | Max curr: 0x00000000 mmc0: sdhci: Resp[0]: 0x00000000 | Resp[1]: 0x00000000 mmc0: sdhci: Resp[2]: 0x00000000 | Resp[3]: 0x00000000 mmc0: sdhci: Host ctl2: 0x00000000 mmc0: sdhci: ============================================ Add support for the additional calibration clocks to allow these platforms to be configured appropriately. Cc: Venkat Gopalakrishnan Cc: Ritesh Harjani Signed-off-by: Bjorn Andersson Acked-by: Rob Herring Tested-by: Jeremy McNicoll Signed-off-by: Ulf Hansson --- Documentation/devicetree/bindings/mmc/sdhci-msm.txt | 2 ++ drivers/mmc/host/sdhci-msm.c | 12 +++++++++++- 2 files changed, 13 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt index 0576264eab5e..bfdcdc4ccdff 100644 --- a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt +++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt @@ -18,6 +18,8 @@ Required properties: "core" - SDC MMC clock (MCLK) (required) "bus" - SDCC bus voter clock (optional) "xo" - TCXO clock (optional) + "cal" - reference clock for RCLK delay calibration (optional) + "sleep" - sleep clock for RCLK delay calibration (optional) Example: diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index 526e19eced2f..33919d2b35d1 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -129,7 +129,7 @@ struct sdhci_msm_host { int pwr_irq; /* power irq */ struct clk *bus_clk; /* SDHC bus voter clock */ struct clk *xo_clk; /* TCXO clk needed for FLL feature of cm_dll*/ - struct clk_bulk_data bulk_clks[2]; /* core, iface clocks */ + struct clk_bulk_data bulk_clks[4]; /* core, iface, cal, sleep clocks */ unsigned long clk_rate; struct mmc_host *mmc; bool use_14lpp_dll_reset; @@ -1184,6 +1184,16 @@ static int sdhci_msm_probe(struct platform_device *pdev) if (ret) dev_warn(&pdev->dev, "core clock boost failed\n"); + clk = devm_clk_get(&pdev->dev, "cal"); + if (IS_ERR(clk)) + clk = NULL; + msm_host->bulk_clks[2].clk = clk; + + clk = devm_clk_get(&pdev->dev, "sleep"); + if (IS_ERR(clk)) + clk = NULL; + msm_host->bulk_clks[3].clk = clk; + ret = clk_bulk_prepare_enable(ARRAY_SIZE(msm_host->bulk_clks), msm_host->bulk_clks); if (ret) -- cgit v1.2.3 From 17f5e716703b3281293790e83ad3d6a0bd8b9681 Mon Sep 17 00:00:00 2001 From: Carlo Caione Date: Tue, 3 Oct 2017 13:24:16 +0200 Subject: dt-bindings: mmc: Document the Amlogic Meson8 and Meson8b SDIO bindings This documents the devicetree bindings for the SDIO/MMC host found in Amlogic Meson8 and Meson8b SoCs. It supports the SD specification v2.0 and the eMMC specification v4.41. It has an internal "mux" which allows connecting up to three MMC devices to it. The maximum supported bus-width is 4-bits. Amlogic's GPL kernel sources call it "SDIO" to differentiate it from the other MMC controller in (at least the Meson8 and Meson8b) the SoCs (they call the other one "SDHC", which supports a bus-width of up to 8-bits). Signed-off-by: Carlo Caione Signed-off-by: Martin Blumenstingl Acked-by: Rob Herring Signed-off-by: Ulf Hansson --- .../bindings/mmc/amlogic,meson-mx-sdio.txt | 54 ++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.txt b/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.txt new file mode 100644 index 000000000000..8765c605e6bc --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.txt @@ -0,0 +1,54 @@ +* Amlogic Meson6, Meson8 and Meson8b SDIO/MMC controller + +The highspeed MMC host controller on Amlogic SoCs provides an interface +for MMC, SD, SDIO and SDHC types of memory cards. + +Supported maximum speeds are the ones of the eMMC standard 4.41 as well +as the speed of SD standard 2.0. + +The hardware provides an internal "mux" which allows up to three slots +to be controlled. Only one slot can be accessed at a time. + +Required properties: + - compatible : must be one of + - "amlogic,meson8-sdio" + - "amlogic,meson8b-sdio" + along with the generic "amlogic,meson-mx-sdio" + - reg : mmc controller base registers + - interrupts : mmc controller interrupt + - #address-cells : must be 1 + - size-cells : must be 0 + - clocks : phandle to clock providers + - clock-names : must contain "core" and "clkin" + +Required child nodes: +A node for each slot provided by the MMC controller is required. +NOTE: due to a driver limitation currently only one slot (= child node) + is supported! + +Required properties on each child node (= slot): + - compatible : must be "mmc-slot" (see mmc.txt within this directory) + - reg : the slot (or "port") ID + +Optional properties on each child node (= slot): + - bus-width : must be 1 or 4 (8-bit bus is not supported) + - for cd and all other additional generic mmc parameters + please refer to mmc.txt within this directory + +Examples: + mmc@c1108c20 { + compatible = "amlogic,meson8-sdio", "amlogic,meson-mx-sdio"; + reg = <0xc1108c20 0x20>; + interrupts = <0 28 1>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&clkc CLKID_SDIO>, <&clkc CLKID_CLK81>; + clock-names = "core", "clkin"; + + slot@1 { + compatible = "mmc-slot"; + reg = <1>; + + bus-width = <4>; + }; + }; -- cgit v1.2.3 From 04fa0540255ee5707a1addf4c7c2a5ba4ac2c407 Mon Sep 17 00:00:00 2001 From: Jin Qian Date: Thu, 12 Oct 2017 10:46:59 -0700 Subject: mmc: core: export emmc revision Expose emmc revision as part of device attributes. Signed-off-by: Jin Qian Signed-off-by: Ulf Hansson --- Documentation/ABI/testing/sysfs-bus-mmc | 4 ++++ drivers/mmc/core/mmc.c | 2 ++ 2 files changed, 6 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-mmc (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-bus-mmc b/Documentation/ABI/testing/sysfs-bus-mmc new file mode 100644 index 000000000000..519f028d19cc --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-mmc @@ -0,0 +1,4 @@ +What: /sys/bus/mmc/devices/.../rev +Date: October 2017 +Contact: Jin Qian +Description: Extended CSD revision number diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 44d67ee8bf7b..066efbb89483 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -780,6 +780,7 @@ MMC_DEV_ATTR(manfid, "0x%06x\n", card->cid.manfid); MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name); MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid); MMC_DEV_ATTR(prv, "0x%x\n", card->cid.prv); +MMC_DEV_ATTR(rev, "0x%x\n", card->ext_csd.rev); MMC_DEV_ATTR(pre_eol_info, "%02x\n", card->ext_csd.pre_eol_info); MMC_DEV_ATTR(life_time, "0x%02x 0x%02x\n", card->ext_csd.device_life_time_est_typ_a, @@ -838,6 +839,7 @@ static struct attribute *mmc_std_attrs[] = { &dev_attr_name.attr, &dev_attr_oemid.attr, &dev_attr_prv.attr, + &dev_attr_rev.attr, &dev_attr_pre_eol_info.attr, &dev_attr_life_time.attr, &dev_attr_serial.attr, -- cgit v1.2.3 From f7834cbd907abb5d4d84f85dba5a7321e5a37b83 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sun, 15 Oct 2017 14:46:13 +0200 Subject: dt-bindings: mmc: describe new eMMC binding for fixed driver type Some boards may have to use a certain driver type (or drive strength) to achieve stable eMMC communication. Describe a binding to set this up via DT. Signed-off-by: Wolfram Sang Acked-by: Rob Herring Reviewed-by: Simon Horman Signed-off-by: Ulf Hansson --- Documentation/devicetree/bindings/mmc/mmc.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index b32ade645ad9..94a90b49a692 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -53,6 +53,9 @@ Optional properties: - no-sdio: controller is limited to send sdio cmd during initialization - no-sd: controller is limited to send sd cmd during initialization - no-mmc: controller is limited to send mmc cmd during initialization +- fixed-emmc-driver-type: for non-removable eMMC, enforce this driver type. + The value is the driver type as specified in the eMMC specification + (table 206 in spec version 5.1). *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line polarity properties, we have to fix the meaning of the "normal" and "inverted" -- cgit v1.2.3 From 95e91ade6900547a74ac8e3ce35213aacfbdd0d3 Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Wed, 18 Oct 2017 09:00:21 +0200 Subject: dt-bindings: mmc: renesas_sdhi: provide example in bindings documentation Provide an example of the usage of the DT bindings for TMIO in their documentation. The example given is for the r8a7790 (R-Car H2). Signed-off-by: Simon Horman Reviewed-by: Geert Uytterhoeven Acked-by: Wolfram Sang Signed-off-by: Ulf Hansson --- Documentation/devicetree/bindings/mmc/tmio_mmc.txt | 58 ++++++++++++++++++++++ 1 file changed, 58 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt index 54ef642f23a0..b63392d9cc47 100644 --- a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt +++ b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt @@ -43,3 +43,61 @@ Optional properties: - pinctrl-names: should be "default", "state_uhs" - pinctrl-0: should contain default/high speed pin ctrl - pinctrl-1: should contain uhs mode pin ctrl + +Example: R8A7790 (R-Car H2) SDHI controller nodes + + sdhi0: sd@ee100000 { + compatible = "renesas,sdhi-r8a7790"; + reg = <0 0xee100000 0 0x328>; + interrupts = ; + clocks = <&cpg CPG_MOD 314>; + dmas = <&dmac0 0xcd>, <&dmac0 0xce>, + <&dmac1 0xcd>, <&dmac1 0xce>; + dma-names = "tx", "rx", "tx", "rx"; + max-frequency = <195000000>; + power-domains = <&sysc R8A7790_PD_ALWAYS_ON>; + resets = <&cpg 314>; + status = "disabled"; + }; + + sdhi1: sd@ee120000 { + compatible = "renesas,sdhi-r8a7790"; + reg = <0 0xee120000 0 0x328>; + interrupts = ; + clocks = <&cpg CPG_MOD 313>; + dmas = <&dmac0 0xc9>, <&dmac0 0xca>, + <&dmac1 0xc9>, <&dmac1 0xca>; + dma-names = "tx", "rx", "tx", "rx"; + max-frequency = <195000000>; + power-domains = <&sysc R8A7790_PD_ALWAYS_ON>; + resets = <&cpg 313>; + status = "disabled"; + }; + + sdhi2: sd@ee140000 { + compatible = "renesas,sdhi-r8a7790"; + reg = <0 0xee140000 0 0x100>; + interrupts = ; + clocks = <&cpg CPG_MOD 312>; + dmas = <&dmac0 0xc1>, <&dmac0 0xc2>, + <&dmac1 0xc1>, <&dmac1 0xc2>; + dma-names = "tx", "rx", "tx", "rx"; + max-frequency = <97500000>; + power-domains = <&sysc R8A7790_PD_ALWAYS_ON>; + resets = <&cpg 312>; + status = "disabled"; + }; + + sdhi3: sd@ee160000 { + compatible = "renesas,sdhi-r8a7790"; + reg = <0 0xee160000 0 0x100>; + interrupts = ; + clocks = <&cpg CPG_MOD 311>; + dmas = <&dmac0 0xd3>, <&dmac0 0xd4>, + <&dmac1 0xd3>, <&dmac1 0xd4>; + dma-names = "tx", "rx", "tx", "rx"; + max-frequency = <97500000>; + power-domains = <&sysc R8A7790_PD_ALWAYS_ON>; + resets = <&cpg 311>; + status = "disabled"; + }; -- cgit v1.2.3 From 54839d012d5f98cde2fa102fdcd22e1da661d138 Mon Sep 17 00:00:00 2001 From: Simon Horman Date: Wed, 18 Oct 2017 09:00:22 +0200 Subject: dt-bindings: mmc: renesas_sdhi: add R-Car Gen[123] fallback compatibility strings Add fallback compatibility strings for R-Car Gen 1, 2 and 3. In the case of Renesas R-Car hardware we know that there are generations of SoCs, f.e. Gen 1 and 2. But beyond that its not clear what the relationship between IP blocks might be. For example, I believe that r8a7790 is older than r8a7791 but that doesn't imply that the latter is a descendant of the former or vice versa. We can, however, by examining the documentation and behaviour of the hardware at run-time observe that the current driver implementation appears to be compatible with the IP blocks on SoCs within a given generation. For the above reasons and convenience when enabling new SoCs a per-generation fallback compatibility string scheme is being adopted for drivers for Renesas SoCs. Signed-off-by: Simon Horman Reviewed-by: Geert Uytterhoeven Acked-by: Wolfram Sang Signed-off-by: Ulf Hansson --- Documentation/devicetree/bindings/mmc/tmio_mmc.txt | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt index b63392d9cc47..3c6762430fd9 100644 --- a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt +++ b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt @@ -10,7 +10,7 @@ described in mmc.txt, can be used. Additionally the following tmio_mmc-specific optional bindings can be used. Required properties: -- compatible: "renesas,sdhi-shmobile" - a generic sh-mobile SDHI unit +- compatible: should contain one or more of the following: "renesas,sdhi-sh73a0" - SDHI IP on SH73A0 SoC "renesas,sdhi-r7s72100" - SDHI IP on R7S72100 SoC "renesas,sdhi-r8a73a4" - SDHI IP on R8A73A4 SoC @@ -26,6 +26,16 @@ Required properties: "renesas,sdhi-r8a7794" - SDHI IP on R8A7794 SoC "renesas,sdhi-r8a7795" - SDHI IP on R8A7795 SoC "renesas,sdhi-r8a7796" - SDHI IP on R8A7796 SoC + "renesas,sdhi-shmobile" - a generic sh-mobile SDHI controller + "renesas,rcar-gen1-sdhi" - a generic R-Car Gen1 SDHI controller + "renesas,rcar-gen2-sdhi" - a generic R-Car Gen2 or RZ/G1 + SDHI controller + "renesas,rcar-gen3-sdhi" - a generic R-Car Gen3 SDHI controller + + + When compatible with the generic version, nodes must list + the SoC-specific version corresponding to the platform + first followed by the generic version. - clocks: Most controllers only have 1 clock source per channel. However, on some variations of this controller, the internal card detection @@ -47,7 +57,7 @@ Optional properties: Example: R8A7790 (R-Car H2) SDHI controller nodes sdhi0: sd@ee100000 { - compatible = "renesas,sdhi-r8a7790"; + compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi"; reg = <0 0xee100000 0 0x328>; interrupts = ; clocks = <&cpg CPG_MOD 314>; @@ -61,7 +71,7 @@ Example: R8A7790 (R-Car H2) SDHI controller nodes }; sdhi1: sd@ee120000 { - compatible = "renesas,sdhi-r8a7790"; + compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi"; reg = <0 0xee120000 0 0x328>; interrupts = ; clocks = <&cpg CPG_MOD 313>; @@ -75,7 +85,7 @@ Example: R8A7790 (R-Car H2) SDHI controller nodes }; sdhi2: sd@ee140000 { - compatible = "renesas,sdhi-r8a7790"; + compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi"; reg = <0 0xee140000 0 0x100>; interrupts = ; clocks = <&cpg CPG_MOD 312>; @@ -89,7 +99,7 @@ Example: R8A7790 (R-Car H2) SDHI controller nodes }; sdhi3: sd@ee160000 { - compatible = "renesas,sdhi-r8a7790"; + compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi"; reg = <0 0xee160000 0 0x100>; interrupts = ; clocks = <&cpg CPG_MOD 311>; -- cgit v1.2.3 From d91ca84edeb04fad89faf0f723029b692f6b13b4 Mon Sep 17 00:00:00 2001 From: Chaotian Jing Date: Mon, 16 Oct 2017 09:46:28 +0800 Subject: mmc: dt-bindings: Add reg/source_cg/latch-ck for Mediatek MMC bindings Change the comptiable for support of multi-platform Make compatible explicit, as MMC host of mt8173 has difference with mt8135(mt8173 supports hs400 and hs400_tune),so that need separate mt8173/mt8135 compatible name. Add description for reg Add description for source_cg Add description for mediatek,latch-ck Note that source_cg and mediatek,latch-ck are optional for some projects, eg, MT2701 do not have source_cg, and MT2712 do not need mediatek,latch-ck Signed-off-by: Chaotian Jing Acked-by: Rob Herring Tested-by: Sean Wang Signed-off-by: Ulf Hansson --- Documentation/devicetree/bindings/mmc/mtk-sd.txt | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt index 4182ea36ca5b..72d2a734ab85 100644 --- a/Documentation/devicetree/bindings/mmc/mtk-sd.txt +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt @@ -7,10 +7,18 @@ This file documents differences between the core properties in mmc.txt and the properties used by the msdc driver. Required properties: -- compatible: Should be "mediatek,mt8173-mmc","mediatek,mt8135-mmc" +- compatible: value should be either of the following. + "mediatek,mt8135-mmc": for mmc host ip compatible with mt8135 + "mediatek,mt8173-mmc": for mmc host ip compatible with mt8173 + "mediatek,mt2701-mmc": for mmc host ip compatible with mt2701 + "mediatek,mt2712-mmc": for mmc host ip compatible with mt2712 +- reg: physical base address of the controller and length - interrupts: Should contain MSDC interrupt number -- clocks: MSDC source clock, HCLK -- clock-names: "source", "hclk" +- clocks: Should contain phandle for the clock feeding the MMC controller +- clock-names: Should contain the following: + "source" - source clock (required) + "hclk" - HCLK which used for host (required) + "source_cg" - independent source clock gate (required for MT2712) - pinctrl-names: should be "default", "state_uhs" - pinctrl-0: should contain default/high speed pin ctrl - pinctrl-1: should contain uhs mode pin ctrl @@ -30,6 +38,10 @@ Optional properties: - mediatek,hs400-cmd-resp-sel-rising: HS400 command response sample selection If present,HS400 command responses are sampled on rising edges. If not present,HS400 command responses are sampled on falling edges. +- mediatek,latch-ck: Some SoCs do not support enhance_rx, need set correct latch-ck to avoid data crc + error caused by stop clock(fifo full) + Valid range = [0:0x7]. if not present, default value is 0. + applied to compatible "mediatek,mt2701-mmc". Examples: mmc0: mmc@11230000 { -- cgit v1.2.3 From 00aa61d36da1969b139dc10b9b555677ebb03c42 Mon Sep 17 00:00:00 2001 From: Stafford Horne Date: Tue, 19 Sep 2017 22:55:54 +0900 Subject: Documentation: Move OpenRISC docs out of arch/ The OpenRISC docs have traditionally been in arch/ but that does not seem like the correct place to be. Move them so they will be more visible to others. Also update MAINTAINERS to make sure we get notifications of changes. Signed-off-by: Stafford Horne --- Documentation/openrisc/README | 99 +++++++++++++++++++++++++++++++++++++++++++ Documentation/openrisc/TODO | 12 ++++++ MAINTAINERS | 1 + arch/openrisc/README.openrisc | 99 ------------------------------------------- arch/openrisc/TODO.openrisc | 12 ------ 5 files changed, 112 insertions(+), 111 deletions(-) create mode 100644 Documentation/openrisc/README create mode 100644 Documentation/openrisc/TODO delete mode 100644 arch/openrisc/README.openrisc delete mode 100644 arch/openrisc/TODO.openrisc (limited to 'Documentation') diff --git a/Documentation/openrisc/README b/Documentation/openrisc/README new file mode 100644 index 000000000000..072069ab5100 --- /dev/null +++ b/Documentation/openrisc/README @@ -0,0 +1,99 @@ +OpenRISC Linux +============== + +This is a port of Linux to the OpenRISC class of microprocessors; the initial +target architecture, specifically, is the 32-bit OpenRISC 1000 family (or1k). + +For information about OpenRISC processors and ongoing development: + + website http://openrisc.io + +For more information about Linux on OpenRISC, please contact South Pole AB. + + email: info@southpole.se + + website: http://southpole.se + http://southpoleconsulting.com + +--------------------------------------------------------------------- + +Build instructions for OpenRISC toolchain and Linux +=================================================== + +In order to build and run Linux for OpenRISC, you'll need at least a basic +toolchain and, perhaps, the architectural simulator. Steps to get these bits +in place are outlined here. + +1) The toolchain can be obtained from openrisc.io. Instructions for building +a toolchain can be found at: + +https://github.com/openrisc/tutorials + +2) or1ksim (optional) + +or1ksim is the architectural simulator which will allow you to actually run +your OpenRISC Linux kernel if you don't have an OpenRISC processor at hand. + + git clone https://github.com/openrisc/or1ksim.git + + cd or1ksim + ./configure --prefix=$OPENRISC_PREFIX + make + make install + +3) Linux kernel + +Build the kernel as usual + + make ARCH=openrisc defconfig + make ARCH=openrisc + +4) Run in architectural simulator + +Grab the or1ksim platform configuration file (from the or1ksim source) and +together with your freshly built vmlinux, run your kernel with the following +incantation: + + sim -f arch/openrisc/or1ksim.cfg vmlinux + +--------------------------------------------------------------------- + +Terminology +=========== + +In the code, the following particles are used on symbols to limit the scope +to more or less specific processor implementations: + +openrisc: the OpenRISC class of processors +or1k: the OpenRISC 1000 family of processors +or1200: the OpenRISC 1200 processor + +--------------------------------------------------------------------- + +History +======== + +18. 11. 2003 Matjaz Breskvar (phoenix@bsemi.com) + initial port of linux to OpenRISC/or32 architecture. + all the core stuff is implemented and seams usable. + +08. 12. 2003 Matjaz Breskvar (phoenix@bsemi.com) + complete change of TLB miss handling. + rewrite of exceptions handling. + fully functional sash-3.6 in default initrd. + a much improved version with changes all around. + +10. 04. 2004 Matjaz Breskvar (phoenix@bsemi.com) + alot of bugfixes all over. + ethernet support, functional http and telnet servers. + running many standard linux apps. + +26. 06. 2004 Matjaz Breskvar (phoenix@bsemi.com) + port to 2.6.x + +30. 11. 2004 Matjaz Breskvar (phoenix@bsemi.com) + lots of bugfixes and enhancments. + added opencores framebuffer driver. + +09. 10. 2010 Jonas Bonn (jonas@southpole.se) + major rewrite to bring up to par with upstream Linux 2.6.36 diff --git a/Documentation/openrisc/TODO b/Documentation/openrisc/TODO new file mode 100644 index 000000000000..c43d4e1d14eb --- /dev/null +++ b/Documentation/openrisc/TODO @@ -0,0 +1,12 @@ +The OpenRISC Linux port is fully functional and has been tracking upstream +since 2.6.35. There are, however, remaining items to be completed within +the coming months. Here's a list of known-to-be-less-than-stellar items +that are due for investigation shortly, i.e. our TODO list: + +-- Implement the rest of the DMA API... dma_map_sg, etc. + +-- Finish the renaming cleanup... there are references to or32 in the code + which was an older name for the architecture. The name we've settled on is + or1k and this change is slowly trickling through the stack. For the time + being, or32 is equivalent to or1k. + diff --git a/MAINTAINERS b/MAINTAINERS index 543d9fda92aa..4e2b720ca661 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10031,6 +10031,7 @@ T: git git://github.com/openrisc/linux.git L: openrisc@lists.librecores.org W: http://openrisc.io S: Maintained +F: Documentation/openrisc/ F: arch/openrisc/ F: drivers/irqchip/irq-or1k-* diff --git a/arch/openrisc/README.openrisc b/arch/openrisc/README.openrisc deleted file mode 100644 index 072069ab5100..000000000000 --- a/arch/openrisc/README.openrisc +++ /dev/null @@ -1,99 +0,0 @@ -OpenRISC Linux -============== - -This is a port of Linux to the OpenRISC class of microprocessors; the initial -target architecture, specifically, is the 32-bit OpenRISC 1000 family (or1k). - -For information about OpenRISC processors and ongoing development: - - website http://openrisc.io - -For more information about Linux on OpenRISC, please contact South Pole AB. - - email: info@southpole.se - - website: http://southpole.se - http://southpoleconsulting.com - ---------------------------------------------------------------------- - -Build instructions for OpenRISC toolchain and Linux -=================================================== - -In order to build and run Linux for OpenRISC, you'll need at least a basic -toolchain and, perhaps, the architectural simulator. Steps to get these bits -in place are outlined here. - -1) The toolchain can be obtained from openrisc.io. Instructions for building -a toolchain can be found at: - -https://github.com/openrisc/tutorials - -2) or1ksim (optional) - -or1ksim is the architectural simulator which will allow you to actually run -your OpenRISC Linux kernel if you don't have an OpenRISC processor at hand. - - git clone https://github.com/openrisc/or1ksim.git - - cd or1ksim - ./configure --prefix=$OPENRISC_PREFIX - make - make install - -3) Linux kernel - -Build the kernel as usual - - make ARCH=openrisc defconfig - make ARCH=openrisc - -4) Run in architectural simulator - -Grab the or1ksim platform configuration file (from the or1ksim source) and -together with your freshly built vmlinux, run your kernel with the following -incantation: - - sim -f arch/openrisc/or1ksim.cfg vmlinux - ---------------------------------------------------------------------- - -Terminology -=========== - -In the code, the following particles are used on symbols to limit the scope -to more or less specific processor implementations: - -openrisc: the OpenRISC class of processors -or1k: the OpenRISC 1000 family of processors -or1200: the OpenRISC 1200 processor - ---------------------------------------------------------------------- - -History -======== - -18. 11. 2003 Matjaz Breskvar (phoenix@bsemi.com) - initial port of linux to OpenRISC/or32 architecture. - all the core stuff is implemented and seams usable. - -08. 12. 2003 Matjaz Breskvar (phoenix@bsemi.com) - complete change of TLB miss handling. - rewrite of exceptions handling. - fully functional sash-3.6 in default initrd. - a much improved version with changes all around. - -10. 04. 2004 Matjaz Breskvar (phoenix@bsemi.com) - alot of bugfixes all over. - ethernet support, functional http and telnet servers. - running many standard linux apps. - -26. 06. 2004 Matjaz Breskvar (phoenix@bsemi.com) - port to 2.6.x - -30. 11. 2004 Matjaz Breskvar (phoenix@bsemi.com) - lots of bugfixes and enhancments. - added opencores framebuffer driver. - -09. 10. 2010 Jonas Bonn (jonas@southpole.se) - major rewrite to bring up to par with upstream Linux 2.6.36 diff --git a/arch/openrisc/TODO.openrisc b/arch/openrisc/TODO.openrisc deleted file mode 100644 index c43d4e1d14eb..000000000000 --- a/arch/openrisc/TODO.openrisc +++ /dev/null @@ -1,12 +0,0 @@ -The OpenRISC Linux port is fully functional and has been tracking upstream -since 2.6.35. There are, however, remaining items to be completed within -the coming months. Here's a list of known-to-be-less-than-stellar items -that are due for investigation shortly, i.e. our TODO list: - --- Implement the rest of the DMA API... dma_map_sg, etc. - --- Finish the renaming cleanup... there are references to or32 in the code - which was an older name for the architecture. The name we've settled on is - or1k and this change is slowly trickling through the stack. For the time - being, or32 is equivalent to or1k. - -- cgit v1.2.3 From e4082de21c5c4f9001b8e44b39b5e72f7ed3b2a7 Mon Sep 17 00:00:00 2001 From: Stafford Horne Date: Sat, 21 Oct 2017 22:39:09 +0900 Subject: Documentation: openrisc: Updates to README Update the OpenRISC readme to provide some more up-to-date information on how to get started with OpenRISC. This includes: - remove references to southpole who no longer are consulting for OpenRISC (confirmed with Jonas) - suggested QEMU instead of the old or1ksim as QEMU is well supported - include instructions on how to get an FPGA board running Suggested-by: Pavel Machek Signed-off-by: Stafford Horne --- Documentation/openrisc/README | 65 +++++++++++++++++++++++++------------------ 1 file changed, 38 insertions(+), 27 deletions(-) (limited to 'Documentation') diff --git a/Documentation/openrisc/README b/Documentation/openrisc/README index 072069ab5100..777a893d533d 100644 --- a/Documentation/openrisc/README +++ b/Documentation/openrisc/README @@ -7,13 +7,7 @@ target architecture, specifically, is the 32-bit OpenRISC 1000 family (or1k). For information about OpenRISC processors and ongoing development: website http://openrisc.io - -For more information about Linux on OpenRISC, please contact South Pole AB. - - email: info@southpole.se - - website: http://southpole.se - http://southpoleconsulting.com + email openrisc@lists.librecores.org --------------------------------------------------------------------- @@ -24,37 +18,54 @@ In order to build and run Linux for OpenRISC, you'll need at least a basic toolchain and, perhaps, the architectural simulator. Steps to get these bits in place are outlined here. -1) The toolchain can be obtained from openrisc.io. Instructions for building -a toolchain can be found at: +1) Toolchain + +Toolchain binaries can be obtained from openrisc.io or our github releases page. +Instructions for building the different toolchains can be found on openrisc.io +or Stafford's toolchain build and release scripts. + + binaries https://github.com/openrisc/or1k-gcc/releases + toolchains https://openrisc.io/software + building https://github.com/stffrdhrn/or1k-toolchain-build -https://github.com/openrisc/tutorials +2) Building -2) or1ksim (optional) +Build the Linux kernel as usual -or1ksim is the architectural simulator which will allow you to actually run -your OpenRISC Linux kernel if you don't have an OpenRISC processor at hand. + make ARCH=openrisc defconfig + make ARCH=openrisc - git clone https://github.com/openrisc/or1ksim.git +3) Running on FPGA (optional) - cd or1ksim - ./configure --prefix=$OPENRISC_PREFIX - make - make install +The OpenRISC community typically uses FuseSoC to manage building and programming +an SoC into an FPGA. The below is an example of programming a De0 Nano +development board with the OpenRISC SoC. During the build FPGA RTL is code +downloaded from the FuseSoC IP cores repository and built using the FPGA vendor +tools. Binaries are loaded onto the board with openocd. -3) Linux kernel + git clone https://github.com/olofk/fusesoc + cd fusesoc + sudo pip install -e . -Build the kernel as usual + fusesoc init + fusesoc build de0_nano + fusesoc pgm de0_nano - make ARCH=openrisc defconfig - make ARCH=openrisc + openocd -f interface/altera-usb-blaster.cfg \ + -f board/or1k_generic.cfg + + telnet localhost 4444 + > init + > halt; load_image vmlinux ; reset -4) Run in architectural simulator +4) Running on a Simulator (optional) -Grab the or1ksim platform configuration file (from the or1ksim source) and -together with your freshly built vmlinux, run your kernel with the following -incantation: +QEMU is a processor emulator which we recommend for simulating the OpenRISC +platform. Please follow the OpenRISC instructions on the QEMU website to get +Linux running on QEMU. You can build QEMU yourself, but your Linux distribution +likely provides binary packages to support OpenRISC. - sim -f arch/openrisc/or1ksim.cfg vmlinux + qemu openrisc https://wiki.qemu.org/Documentation/Platforms/OpenRISC --------------------------------------------------------------------- -- cgit v1.2.3 From 9f058fa2efb10cd75884c4ee6c357bab07715f02 Mon Sep 17 00:00:00 2001 From: Avaneesh Kumar Dwivedi Date: Tue, 24 Oct 2017 21:22:27 +0530 Subject: remoteproc: qcom: Add support for mss remoteproc on msm8996 This patch add support for mss boot on msm8996. Major changes include initializing mss rproc for msm8996, making appropriate change for executing mss reset sequence etc. Tested-and-acked-by: Bjorn Andersson Signed-off-by: Avaneesh Kumar Dwivedi Signed-off-by: Bjorn Andersson --- .../devicetree/bindings/remoteproc/qcom,q6v5.txt | 1 + drivers/remoteproc/qcom_q6v5_pil.c | 164 ++++++++++++++++++--- 2 files changed, 141 insertions(+), 24 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt index 7ff3f7903f26..00d3d58a102f 100644 --- a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt +++ b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt @@ -10,6 +10,7 @@ on the Qualcomm Hexagon core. "qcom,q6v5-pil", "qcom,msm8916-mss-pil", "qcom,msm8974-mss-pil" + "qcom,msm8996-mss-pil" - reg: Usage: required diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c index 728179ba7db2..5460f61ee21c 100644 --- a/drivers/remoteproc/qcom_q6v5_pil.c +++ b/drivers/remoteproc/qcom_q6v5_pil.c @@ -32,6 +32,7 @@ #include #include #include +#include #include "remoteproc_internal.h" #include "qcom_common.h" @@ -64,6 +65,8 @@ #define QDSP6SS_RESET_REG 0x014 #define QDSP6SS_GFMUX_CTL_REG 0x020 #define QDSP6SS_PWR_CTL_REG 0x030 +#define QDSP6SS_MEM_PWR_CTL 0x0B0 +#define QDSP6SS_STRAP_ACC 0x110 /* AXI Halt Register Offsets */ #define AXI_HALTREQ_REG 0x0 @@ -92,6 +95,15 @@ #define QDSS_BHS_ON BIT(21) #define QDSS_LDO_BYP BIT(22) +/* QDSP6v56 parameters */ +#define QDSP6v56_LDO_BYP BIT(25) +#define QDSP6v56_BHS_ON BIT(24) +#define QDSP6v56_CLAMP_WL BIT(21) +#define QDSP6v56_CLAMP_QMC_MEM BIT(22) +#define HALT_CHECK_MAX_LOOPS 200 +#define QDSP6SS_XO_CBCR 0x0038 +#define QDSP6SS_ACC_OVERRIDE_VAL 0x20 + struct reg_info { struct regulator *reg; int uV; @@ -110,6 +122,7 @@ struct rproc_hexagon_res { struct qcom_mss_reg_res *active_supply; char **proxy_clk_names; char **active_clk_names; + int version; bool need_mem_protection; }; @@ -158,7 +171,13 @@ struct q6v5 { bool need_mem_protection; int mpss_perm; int mba_perm; + int version; +}; +enum { + MSS_MSM8916, + MSS_MSM8974, + MSS_MSM8996, }; static int q6v5_regulator_init(struct device *dev, struct reg_info *regs, @@ -387,33 +406,98 @@ static int q6v5proc_reset(struct q6v5 *qproc) { u32 val; int ret; + int i; - /* Assert resets, stop core */ - val = readl(qproc->reg_base + QDSP6SS_RESET_REG); - val |= (Q6SS_CORE_ARES | Q6SS_BUS_ARES_ENABLE | Q6SS_STOP_CORE); - writel(val, qproc->reg_base + QDSP6SS_RESET_REG); - /* Enable power block headswitch, and wait for it to stabilize */ - val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG); - val |= QDSS_BHS_ON | QDSS_LDO_BYP; - writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); - udelay(1); - - /* - * Turn on memories. L2 banks should be done individually - * to minimize inrush current. - */ - val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG); - val |= Q6SS_SLP_RET_N | Q6SS_L2TAG_SLP_NRET_N | - Q6SS_ETB_SLP_NRET_N | Q6SS_L2DATA_STBY_N; - writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); - val |= Q6SS_L2DATA_SLP_NRET_N_2; - writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); - val |= Q6SS_L2DATA_SLP_NRET_N_1; - writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); - val |= Q6SS_L2DATA_SLP_NRET_N_0; - writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + if (qproc->version == MSS_MSM8996) { + /* Override the ACC value if required */ + writel(QDSP6SS_ACC_OVERRIDE_VAL, + qproc->reg_base + QDSP6SS_STRAP_ACC); + /* Assert resets, stop core */ + val = readl(qproc->reg_base + QDSP6SS_RESET_REG); + val |= Q6SS_CORE_ARES | Q6SS_BUS_ARES_ENABLE | Q6SS_STOP_CORE; + writel(val, qproc->reg_base + QDSP6SS_RESET_REG); + + /* BHS require xo cbcr to be enabled */ + val = readl(qproc->reg_base + QDSP6SS_XO_CBCR); + val |= 0x1; + writel(val, qproc->reg_base + QDSP6SS_XO_CBCR); + + /* Read CLKOFF bit to go low indicating CLK is enabled */ + ret = readl_poll_timeout(qproc->reg_base + QDSP6SS_XO_CBCR, + val, !(val & BIT(31)), 1, + HALT_CHECK_MAX_LOOPS); + if (ret) { + dev_err(qproc->dev, + "xo cbcr enabling timed out (rc:%d)\n", ret); + return ret; + } + /* Enable power block headswitch and wait for it to stabilize */ + val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG); + val |= QDSP6v56_BHS_ON; + writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + val |= readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG); + udelay(1); + + /* Put LDO in bypass mode */ + val |= QDSP6v56_LDO_BYP; + writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + + /* Deassert QDSP6 compiler memory clamp */ + val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG); + val &= ~QDSP6v56_CLAMP_QMC_MEM; + writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + + /* Deassert memory peripheral sleep and L2 memory standby */ + val |= Q6SS_L2DATA_STBY_N | Q6SS_SLP_RET_N; + writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + + /* Turn on L1, L2, ETB and JU memories 1 at a time */ + val = readl(qproc->reg_base + QDSP6SS_MEM_PWR_CTL); + for (i = 19; i >= 0; i--) { + val |= BIT(i); + writel(val, qproc->reg_base + + QDSP6SS_MEM_PWR_CTL); + /* + * Read back value to ensure the write is done then + * wait for 1us for both memory peripheral and data + * array to turn on. + */ + val |= readl(qproc->reg_base + QDSP6SS_MEM_PWR_CTL); + udelay(1); + } + /* Remove word line clamp */ + val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG); + val &= ~QDSP6v56_CLAMP_WL; + writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + } else { + /* Assert resets, stop core */ + val = readl(qproc->reg_base + QDSP6SS_RESET_REG); + val |= Q6SS_CORE_ARES | Q6SS_BUS_ARES_ENABLE | Q6SS_STOP_CORE; + writel(val, qproc->reg_base + QDSP6SS_RESET_REG); + + /* Enable power block headswitch and wait for it to stabilize */ + val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG); + val |= QDSS_BHS_ON | QDSS_LDO_BYP; + writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + val |= readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG); + udelay(1); + /* + * Turn on memories. L2 banks should be done individually + * to minimize inrush current. + */ + val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG); + val |= Q6SS_SLP_RET_N | Q6SS_L2TAG_SLP_NRET_N | + Q6SS_ETB_SLP_NRET_N | Q6SS_L2DATA_STBY_N; + writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + val |= Q6SS_L2DATA_SLP_NRET_N_2; + writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + val |= Q6SS_L2DATA_SLP_NRET_N_1; + writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + val |= Q6SS_L2DATA_SLP_NRET_N_0; + writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + } /* Remove IO clamp */ val &= ~Q6SS_CLAMP_IO; writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); @@ -803,6 +887,16 @@ static int q6v5_stop(struct rproc *rproc) q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_q6); q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_modem); q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_nc); + if (qproc->version == MSS_MSM8996) { + /* + * To avoid high MX current during LPASS/MSS restart. + */ + val = readl(qproc->reg_base + QDSP6SS_PWR_CTL_REG); + val |= Q6SS_CLAMP_IO | QDSP6v56_CLAMP_WL | + QDSP6v56_CLAMP_QMC_MEM; + writel(val, qproc->reg_base + QDSP6SS_PWR_CTL_REG); + } + ret = q6v5_xfer_mem_ownership(qproc, &qproc->mpss_perm, false, qproc->mpss_phys, qproc->mpss_size); @@ -1106,6 +1200,7 @@ static int q6v5_probe(struct platform_device *pdev) if (ret) goto free_rproc; + qproc->version = desc->version; qproc->need_mem_protection = desc->need_mem_protection; ret = q6v5_request_irq(qproc, pdev, "wdog", q6v5_wdog_interrupt); if (ret < 0) @@ -1158,6 +1253,24 @@ static int q6v5_remove(struct platform_device *pdev) return 0; } +static const struct rproc_hexagon_res msm8996_mss = { + .hexagon_mba_image = "mba.mbn", + .proxy_clk_names = (char*[]){ + "xo", + "pnoc", + NULL + }, + .active_clk_names = (char*[]){ + "iface", + "bus", + "mem", + "gpll0_mss_clk", + NULL + }, + .need_mem_protection = true, + .version = MSS_MSM8996, +}; + static const struct rproc_hexagon_res msm8916_mss = { .hexagon_mba_image = "mba.mbn", .proxy_supply = (struct qcom_mss_reg_res[]) { @@ -1186,6 +1299,7 @@ static const struct rproc_hexagon_res msm8916_mss = { NULL }, .need_mem_protection = false, + .version = MSS_MSM8916, }; static const struct rproc_hexagon_res msm8974_mss = { @@ -1224,12 +1338,14 @@ static const struct rproc_hexagon_res msm8974_mss = { NULL }, .need_mem_protection = false, + .version = MSS_MSM8974, }; static const struct of_device_id q6v5_of_match[] = { { .compatible = "qcom,q6v5-pil", .data = &msm8916_mss}, { .compatible = "qcom,msm8916-mss-pil", .data = &msm8916_mss}, { .compatible = "qcom,msm8974-mss-pil", .data = &msm8974_mss}, + { .compatible = "qcom,msm8996-mss-pil", .data = &msm8996_mss}, { }, }; MODULE_DEVICE_TABLE(of, q6v5_of_match); -- cgit v1.2.3 From eace566c3406cac3131d44198f05b7b55f79651f Mon Sep 17 00:00:00 2001 From: Chris Lew Date: Thu, 26 Oct 2017 15:28:54 -0700 Subject: dt-bindings: soc: qcom: Support GLINK intents Virtual GLINK channels may know what throughput to expect from a remoteproc. An intent advertises to the remoteproc this channel is ready to receive data. Allow a channel to define the size and amount of intents to be prequeued. Acked-by: Rob Herring Signed-off-by: Chris Lew Signed-off-by: Bjorn Andersson --- Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt index b277eca861f7..9663cab52246 100644 --- a/Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,glink.txt @@ -39,6 +39,14 @@ of these nodes are defined by the individual bindings for the specific function Definition: a list of channels tied to this function, used for matching the function to a set of virtual channels +- qcom,intents: + Usage: optional + Value type: + Definition: a list of size,amount pairs describing what intents should + be preallocated for this virtual channel. This can be used + to tweak the default intents available for the channel to + meet expectations of the remote. + = EXAMPLE The following example represents the GLINK RPM node on a MSM8996 device, with the function for the "rpm_request" channel defined, which is used for @@ -69,6 +77,8 @@ regualtors and root clocks. compatible = "qcom,rpm-msm8996"; qcom,glink-channels = "rpm_requests"; + qcom,intents = <0x400 5 + 0x800 1>; ... }; }; -- cgit v1.2.3 From ed6e26baa7431ebfad890f275e191e32b5a4103c Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Fri, 20 Oct 2017 21:49:14 +0200 Subject: bug-hunting.rst: Fix an example and a typo in a Sphinx tag - Use the same file name in the explanation and in the example (conex.c vs sonixj.c) - Add a missing ':' in a :ref: tag which leads to incorrect Shpinx output - Add some missing ',' and ';' Signed-off-by: Christophe JAILLET Signed-off-by: Jonathan Corbet --- Documentation/admin-guide/bug-hunting.rst | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/bug-hunting.rst b/Documentation/admin-guide/bug-hunting.rst index 08c4b1308189..f278b289e260 100644 --- a/Documentation/admin-guide/bug-hunting.rst +++ b/Documentation/admin-guide/bug-hunting.rst @@ -240,7 +240,7 @@ In order to report it upstream, you should identify the mailing list used for the development of the affected code. This can be done by using the ``get_maintainer.pl`` script. -For example, if you find a bug at the gspca's conex.c file, you can get +For example, if you find a bug at the gspca's sonixj.c file, you can get their maintainers with:: $ ./scripts/get_maintainer.pl -f drivers/media/usb/gspca/sonixj.c @@ -257,7 +257,7 @@ Please notice that it will point to: Tejun and Bhaktipriya (in this specific case, none really envolved on the development of this file); - The driver maintainer (Hans Verkuil); -- The subsystem maintainer (Mauro Carvalho Chehab) +- The subsystem maintainer (Mauro Carvalho Chehab); - The driver and/or subsystem mailing list (linux-media@vger.kernel.org); - the Linux Kernel mailing list (linux-kernel@vger.kernel.org). @@ -274,14 +274,14 @@ Fixing the bug -------------- If you know programming, you could help us by not only reporting the bug, -but also providing us with a solution. After all open source is about +but also providing us with a solution. After all, open source is about sharing what you do and don't you want to be recognised for your genius? If you decide to take this way, once you have worked out a fix please submit it upstream. Please do read -ref:`Documentation/process/submitting-patches.rst ` though +:ref:`Documentation/process/submitting-patches.rst ` though to help your code get accepted. -- cgit v1.2.3 From b0d40d2b22fe48cfcbbfb137fd198be0a1cd8a85 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Tue, 31 Oct 2017 04:18:34 +0100 Subject: sched/isolation: Document isolcpus= boot parameter flags, mark it deprecated Document the latest updates on the isolcpus= boot option. While at it, let's also fix the details about the preferred way to isolate a set of CPUs from the scheduler general domains. Cpusets offer a much better interface to achieve that. Signed-off-by: Frederic Weisbecker Acked-by: Thomas Gleixner Acked-by: Peter Zijlstra Cc: Chris Metcalf Cc: Christoph Lameter Cc: Linus Torvalds Cc: Luiz Capitulino Cc: Mike Galbraith Cc: Paul E. McKenney Cc: Rik van Riel Cc: Wanpeng Li Link: http://lkml.kernel.org/r/1509419914-16179-1-git-send-email-frederic@kernel.org [ Clarified the text some more, marked the boot option deprecated. ] Signed-off-by: Ingo Molnar --- Documentation/admin-guide/kernel-parameters.txt | 39 ++++++++++++++++--------- 1 file changed, 26 insertions(+), 13 deletions(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 6b99c8b77c59..17eb0234d5be 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1727,20 +1727,33 @@ isapnp= [ISAPNP] Format: ,,, - isolcpus= [KNL,SMP] Isolate CPUs from the general scheduler. - The argument is a cpu list, as described above. + isolcpus= [KNL,SMP] Isolate a given set of CPUs from disturbance. + [Deprecated - use cpusets instead] + Format: [flag-list,] + + Specify one or more CPUs to isolate from disturbances + specified in the flag list (default: domain): + + nohz + Disable the tick when a single task runs. + domain + Isolate from the general SMP balancing and scheduling + algorithms. Note that performing domain isolation this way + is irreversible: it's not possible to bring back a CPU to + the domains once isolated through isolcpus. It's strongly + advised to use cpusets instead to disable scheduler load + balancing through the "cpuset.sched_load_balance" file. + It offers a much more flexible interface where CPUs can + move in and out of an isolated set anytime. + + You can move a process onto or off an "isolated" CPU via + the CPU affinity syscalls or cpuset. + begins at 0 and the maximum value is + "number of CPUs in system - 1". + + The format of is described above. + - This option can be used to specify one or more CPUs - to isolate from the general SMP balancing and scheduling - algorithms. You can move a process onto or off an - "isolated" CPU via the CPU affinity syscalls or cpuset. - begins at 0 and the maximum value is - "number of CPUs in system - 1". - - This option is the preferred way to isolate CPUs. The - alternative -- manually setting the CPU mask of all - tasks in the system -- can cause problems and - suboptimal load balancer performance. iucv= [HW,NET] -- cgit v1.2.3 From 727dede0ba8afbd8d19116d39f2ae8d19d00033d Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 24 Oct 2017 09:15:23 +0200 Subject: sound: Retire OSS Since no complaints have been raised after disabling the build of OSS (Open Sound System) by the commit 31cbee6a5611 ("sound: Disable the build of OSS drivers"), let's finally drop the whole code and documentation. Some glue codes are still left intact since sound/oss/dmasound stuff remains -- which is an independent implementation solely for m68k, and it's not covered by ALSA yet. Also, a couple of API header files (linux/sound.h and linux/soundcard.h) are kept remaining as well, since the OSS API itself is still supported by ALSA OSS emulation, and applications can refer to these. Where we're at it, some help texts in the top-level Kconfig are adjusted, too (who still needs to specify I/O port in kbuild nowadays?). Reviewed-by: Jaroslav Kysela Signed-off-by: Takashi Iwai --- Documentation/sound/oss/ALS | 66 - Documentation/sound/oss/AudioExcelDSP16 | 101 - Documentation/sound/oss/CMI8330 | 152 -- Documentation/sound/oss/ESS | 34 - Documentation/sound/oss/ESS1868 | 55 - Documentation/sound/oss/Introduction | 459 ----- Documentation/sound/oss/MultiSound | 1137 ----------- Documentation/sound/oss/OPL3 | 6 - Documentation/sound/oss/Opti | 218 -- Documentation/sound/oss/PAS16 | 162 -- Documentation/sound/oss/PSS | 41 - Documentation/sound/oss/PSS-updates | 88 - Documentation/sound/oss/README.OSS | 1455 ------------- Documentation/sound/oss/README.modules | 106 - Documentation/sound/oss/README.ymfsb | 107 - Documentation/sound/oss/SoundPro | 105 - Documentation/sound/oss/Soundblaster | 53 - Documentation/sound/oss/Tropez+ | 26 - Documentation/sound/oss/VIBRA16 | 80 - Documentation/sound/oss/WaveArtist | 170 -- Documentation/sound/oss/btaudio | 92 - Documentation/sound/oss/mwave | 185 -- Documentation/sound/oss/oss-parameters.txt | 51 - Documentation/sound/oss/ultrasound | 30 - MAINTAINERS | 11 - sound/Kconfig | 33 +- sound/Makefile | 3 +- sound/oss/CHANGELOG | 369 ---- sound/oss/Kconfig | 533 ----- sound/oss/Makefile | 107 - sound/oss/README.FIRST | 6 - sound/oss/ad1848.c | 3062 ---------------------------- sound/oss/ad1848.h | 24 - sound/oss/ad1848_mixer.h | 253 --- sound/oss/aedsp16.c | 1373 ------------- sound/oss/audio.c | 985 --------- sound/oss/bin2hex.c | 39 - sound/oss/coproc.h | 12 - sound/oss/dev_table.c | 256 --- sound/oss/dev_table.h | 390 ---- sound/oss/dmabuf.c | 1268 ------------ sound/oss/hex2hex.c | 101 - sound/oss/kahlua.c | 229 --- sound/oss/midi_ctrl.h | 22 - sound/oss/midi_synth.c | 712 ------- sound/oss/midi_synth.h | 47 - sound/oss/midibuf.c | 427 ---- sound/oss/mpu401.c | 1804 ---------------- sound/oss/mpu401.h | 11 - sound/oss/msnd.c | 413 ---- sound/oss/msnd.h | 278 --- sound/oss/msnd_classic.c | 3 - sound/oss/msnd_classic.h | 185 -- sound/oss/msnd_pinnacle.c | 1941 ------------------ sound/oss/msnd_pinnacle.h | 246 --- sound/oss/opl3.c | 1255 ------------ sound/oss/opl3_hw.h | 246 --- sound/oss/os.h | 45 - sound/oss/pas2.h | 20 - sound/oss/pas2_card.c | 458 ----- sound/oss/pas2_midi.c | 262 --- sound/oss/pas2_mixer.c | 327 --- sound/oss/pas2_pcm.c | 419 ---- sound/oss/pss.c | 1270 ------------ sound/oss/sb.h | 185 -- sound/oss/sb_audio.c | 1097 ---------- sound/oss/sb_card.c | 354 ---- sound/oss/sb_card.h | 149 -- sound/oss/sb_common.c | 1287 ------------ sound/oss/sb_ess.c | 1822 ----------------- sound/oss/sb_ess.h | 34 - sound/oss/sb_midi.c | 206 -- sound/oss/sb_mixer.c | 770 ------- sound/oss/sb_mixer.h | 105 - sound/oss/sequencer.c | 1661 --------------- sound/oss/sleep.h | 18 - sound/oss/sound_calls.h | 87 - sound/oss/sound_config.h | 144 -- sound/oss/sound_firmware.h | 29 - sound/oss/sound_timer.c | 327 --- sound/oss/soundcard.c | 733 ------- sound/oss/soundvers.h | 2 - sound/oss/swarm_cs4297a.c | 2781 ------------------------- sound/oss/sys_timer.c | 280 --- sound/oss/trix.c | 525 ----- sound/oss/tuning.h | 23 - sound/oss/uart401.c | 477 ----- sound/oss/uart6850.c | 361 ---- sound/oss/ulaw.h | 69 - sound/oss/v_midi.c | 290 --- sound/oss/v_midi.h | 14 - sound/oss/vidc.c | 557 ----- sound/oss/vidc.h | 63 - sound/oss/vidc_fill.S | 218 -- sound/oss/waveartist.c | 2043 ------------------- sound/oss/waveartist.h | 92 - 96 files changed, 2 insertions(+), 41225 deletions(-) delete mode 100644 Documentation/sound/oss/ALS delete mode 100644 Documentation/sound/oss/AudioExcelDSP16 delete mode 100644 Documentation/sound/oss/CMI8330 delete mode 100644 Documentation/sound/oss/ESS delete mode 100644 Documentation/sound/oss/ESS1868 delete mode 100644 Documentation/sound/oss/Introduction delete mode 100644 Documentation/sound/oss/MultiSound delete mode 100644 Documentation/sound/oss/OPL3 delete mode 100644 Documentation/sound/oss/Opti delete mode 100644 Documentation/sound/oss/PAS16 delete mode 100644 Documentation/sound/oss/PSS delete mode 100644 Documentation/sound/oss/PSS-updates delete mode 100644 Documentation/sound/oss/README.OSS delete mode 100644 Documentation/sound/oss/README.modules delete mode 100644 Documentation/sound/oss/README.ymfsb delete mode 100644 Documentation/sound/oss/SoundPro delete mode 100644 Documentation/sound/oss/Soundblaster delete mode 100644 Documentation/sound/oss/Tropez+ delete mode 100644 Documentation/sound/oss/VIBRA16 delete mode 100644 Documentation/sound/oss/WaveArtist delete mode 100644 Documentation/sound/oss/btaudio delete mode 100644 Documentation/sound/oss/mwave delete mode 100644 Documentation/sound/oss/oss-parameters.txt delete mode 100644 Documentation/sound/oss/ultrasound delete mode 100644 sound/oss/CHANGELOG delete mode 100644 sound/oss/Kconfig delete mode 100644 sound/oss/Makefile delete mode 100644 sound/oss/README.FIRST delete mode 100644 sound/oss/ad1848.c delete mode 100644 sound/oss/ad1848.h delete mode 100644 sound/oss/ad1848_mixer.h delete mode 100644 sound/oss/aedsp16.c delete mode 100644 sound/oss/audio.c delete mode 100644 sound/oss/bin2hex.c delete mode 100644 sound/oss/coproc.h delete mode 100644 sound/oss/dev_table.c delete mode 100644 sound/oss/dev_table.h delete mode 100644 sound/oss/dmabuf.c delete mode 100644 sound/oss/hex2hex.c delete mode 100644 sound/oss/kahlua.c delete mode 100644 sound/oss/midi_ctrl.h delete mode 100644 sound/oss/midi_synth.c delete mode 100644 sound/oss/midi_synth.h delete mode 100644 sound/oss/midibuf.c delete mode 100644 sound/oss/mpu401.c delete mode 100644 sound/oss/mpu401.h delete mode 100644 sound/oss/msnd.c delete mode 100644 sound/oss/msnd.h delete mode 100644 sound/oss/msnd_classic.c delete mode 100644 sound/oss/msnd_classic.h delete mode 100644 sound/oss/msnd_pinnacle.c delete mode 100644 sound/oss/msnd_pinnacle.h delete mode 100644 sound/oss/opl3.c delete mode 100644 sound/oss/opl3_hw.h delete mode 100644 sound/oss/os.h delete mode 100644 sound/oss/pas2.h delete mode 100644 sound/oss/pas2_card.c delete mode 100644 sound/oss/pas2_midi.c delete mode 100644 sound/oss/pas2_mixer.c delete mode 100644 sound/oss/pas2_pcm.c delete mode 100644 sound/oss/pss.c delete mode 100644 sound/oss/sb.h delete mode 100644 sound/oss/sb_audio.c delete mode 100644 sound/oss/sb_card.c delete mode 100644 sound/oss/sb_card.h delete mode 100644 sound/oss/sb_common.c delete mode 100644 sound/oss/sb_ess.c delete mode 100644 sound/oss/sb_ess.h delete mode 100644 sound/oss/sb_midi.c delete mode 100644 sound/oss/sb_mixer.c delete mode 100644 sound/oss/sb_mixer.h delete mode 100644 sound/oss/sequencer.c delete mode 100644 sound/oss/sleep.h delete mode 100644 sound/oss/sound_calls.h delete mode 100644 sound/oss/sound_config.h delete mode 100644 sound/oss/sound_firmware.h delete mode 100644 sound/oss/sound_timer.c delete mode 100644 sound/oss/soundcard.c delete mode 100644 sound/oss/soundvers.h delete mode 100644 sound/oss/swarm_cs4297a.c delete mode 100644 sound/oss/sys_timer.c delete mode 100644 sound/oss/trix.c delete mode 100644 sound/oss/tuning.h delete mode 100644 sound/oss/uart401.c delete mode 100644 sound/oss/uart6850.c delete mode 100644 sound/oss/ulaw.h delete mode 100644 sound/oss/v_midi.c delete mode 100644 sound/oss/v_midi.h delete mode 100644 sound/oss/vidc.c delete mode 100644 sound/oss/vidc.h delete mode 100644 sound/oss/vidc_fill.S delete mode 100644 sound/oss/waveartist.c delete mode 100644 sound/oss/waveartist.h (limited to 'Documentation') diff --git a/Documentation/sound/oss/ALS b/Documentation/sound/oss/ALS deleted file mode 100644 index bf10bed4574b..000000000000 --- a/Documentation/sound/oss/ALS +++ /dev/null @@ -1,66 +0,0 @@ -ALS-007/ALS-100/ALS-200 based sound cards -========================================= - -Support for sound cards based around the Avance Logic -ALS-007/ALS-100/ALS-200 chip is included. These chips are a single -chip PnP sound solution which is mostly hardware compatible with the -Sound Blaster 16 card, with most differences occurring in the use of -the mixer registers. For this reason the ALS code is integrated -as part of the Sound Blaster 16 driver (adding only 800 bytes to the -SB16 driver). - -To use an ALS sound card under Linux, enable the following options as -modules in the sound configuration section of the kernel config: - - 100% Sound Blaster compatibles (SB16/32/64, ESS, Jazz16) support - - FM synthesizer (YM3812/OPL-3) support - - standalone MPU401 support may be required for some cards; for the - ALS-007, when using isapnptools, it is required -Since the ALS-007/100/200 are PnP cards, ISAPnP support should probably be -compiled in. If kernel level PnP support is not included, isapnptools will -be required to configure the card before the sound modules are loaded. - -When using kernel level ISAPnP, the kernel should correctly identify and -configure all resources required by the card when the "sb" module is -inserted. Note that the ALS-007 does not have a 16 bit DMA channel and that -the MPU401 interface on this card uses a different interrupt to the audio -section. This should all be correctly configured by the kernel; if problems -with the MPU401 interface surface, try using the standalone MPU401 module, -passing "0" as the "sb" module's "mpu_io" module parameter to prevent the -soundblaster driver attempting to register the MPU401 itself. The onboard -synth device can be accessed using the "opl3" module. - -If isapnptools is used to wake up the sound card (as in 2.2.x), the settings -of the card's resources should be passed to the kernel modules ("sb", "opl3" -and "mpu401") using the module parameters. When configuring an ALS-007, be -sure to specify different IRQs for the audio and MPU401 sections - this card -requires they be different. For "sb", "io", "irq" and "dma" should be set -to the same values used to configure the audio section of the card with -isapnp. "dma16" should be explicitly set to "-1" for an ALS-007 since this -card does not have a 16 bit dma channel; if not specified the kernel will -default to using channel 5 anyway which will cause audio not to work. -"mpu_io" should be set to 0. The "io" parameter of the "opl3" module should -also agree with the setting used by isapnp. To get the MPU401 interface -working on an ALS-007 card, the "mpu401" module will be required since this -card uses separate IRQs for the audio and MPU401 sections and there is no -parameter available to pass a different IRQ to the "sb" driver (whose -inbuilt MPU401 driver would otherwise be fine). Insert the mpu401 module -passing appropriate values using the "io" and "irq" parameters. - -The resulting sound driver will provide the following capabilities: - - 8 and 16 bit audio playback - - 8 and 16 bit audio recording - - Software selection of record source (line in, CD, FM, mic, master) - - Record and playback of midi data via the external MPU-401 - - Playback of midi data using inbuilt FM synthesizer - - Control of the ALS-007 mixer via any OSS-compatible mixer programs. - Controls available are Master (L&R), Line in (L&R), CD (L&R), - DSP/PCM/audio out (L&R), FM (L&R) and Mic in (mono). - -Jonathan Woithe -jwoithe@just42.net -30 March 1998 - -Modified 2000-02-26 by Dave Forrest, drf5n@virginia.edu to add ALS100/ALS200 -Modified 2000-04-10 by Paul Laufer, pelaufer@csupomona.edu to add ISAPnP info. -Modified 2000-11-19 by Jonathan Woithe, jwoithe@just42.net - - updated information for kernel 2.4.x. diff --git a/Documentation/sound/oss/AudioExcelDSP16 b/Documentation/sound/oss/AudioExcelDSP16 deleted file mode 100644 index ea8549faede9..000000000000 --- a/Documentation/sound/oss/AudioExcelDSP16 +++ /dev/null @@ -1,101 +0,0 @@ -Driver ------- - -Information about Audio Excel DSP 16 driver can be found in the source -file aedsp16.c -Please, read the head of the source before using it. It contain useful -information. - -Configuration -------------- - -The Audio Excel configuration, is now done with the standard Linux setup. -You have to configure the sound card (Sound Blaster or Microsoft Sound System) -and, if you want it, the Roland MPU-401 (do not use the Sound Blaster MPU-401, -SB-MPU401) in the main driver menu. Activate the lowlevel drivers then select -the Audio Excel hardware that you want to initialize. Check the IRQ/DMA/MIRQ -of the Audio Excel initialization: it must be the same as the SBPRO (or MSS) -setup. If the parameters are different, correct it. -I you own a Gallant's audio card based on SC-6600, activate the SC-6600 support. -If you want to change the configuration of the sound board, be sure to -check off all the configuration items before re-configure it. - -Module parameters ------------------ -To use this driver as a module, you must configure some module parameters, to -set up I/O addresses, IRQ lines and DMA channels. Some parameters are -mandatory while some others are optional. Here a list of parameters you can -use with this module: - -Name Description -==== =========== -MANDATORY -io I/O base address (0x220 or 0x240) -irq irq line (5, 7, 9, 10 or 11) -dma dma channel (0, 1 or 3) - -OPTIONAL -mss_base I/O base address for activate MSS mode (default SBPRO) - (0x530 or 0xE80) -mpu_base I/O base address for activate MPU-401 mode - (0x300, 0x310, 0x320 or 0x330) -mpu_irq MPU-401 irq line (5, 7, 9, 10 or 0) - -A configuration file in /etc/modprobe.d/ directory will have lines like this: - -options opl3 io=0x388 -options ad1848 io=0x530 irq=11 dma=3 -options aedsp16 io=0x220 irq=11 dma=3 mss_base=0x530 - -Where the aedsp16 options are the options for this driver while opl3 and -ad1848 are the corresponding options for the MSS and OPL3 modules. - -Loading MSS and OPL3 needs to pre load the aedsp16 module to set up correctly -the sound card. Installation dependencies must be written in configuration -files under /etc/modprobe.d/ directory: - -softdep ad1848 pre: aedsp16 -softdep opl3 pre: aedsp16 - -Then you must load the sound modules stack in this order: -sound -> aedsp16 -> [ ad1848, opl3 ] - -With the above configuration, loading ad1848 or opl3 modules, will -automatically load all the sound stack. - -Sound cards supported ---------------------- -This driver supports the SC-6000 and SC-6600 based Gallant's sound card. -It don't support the Audio Excel DSP 16 III (try the SC-6600 code). -I'm working on the III version of the card: if someone have useful -information about it, please let me know. -For all the non-supported audio cards, you have to boot MS-DOS (or WIN95) -activating the audio card with the MS-DOS device driver, then you have to --- and boot Linux. -Follow these steps: - -1) Compile Linux kernel with standard sound driver, using the emulation - you want, with the parameters of your audio card, - e.g. Microsoft Sound System irq10 dma3 -2) Install your new kernel as the default boot kernel. -3) Boot MS-DOS and configure the audio card with the boot time device - driver, for MSS irq10 dma3 in our example. -4) -- and boot Linux. This will maintain the DOS configuration - and will boot the new kernel with sound driver. The sound driver will find - the audio card and will recognize and attach it. - -Reports on User successes -------------------------- - -> Date: Mon, 29 Jul 1996 08:35:40 +0100 -> From: Mr S J Greenaway -> To: riccardo@cdc8g5.cdc.polimi.it (Riccardo Facchetti) -> Subject: Re: Audio Excel DSP 16 initialization code -> -> Just to let you know got my Audio Excel (emulating a MSS) working -> with my original SB16, thanks for the driver! - - -Last revised: 20 August 1998 -Riccardo Facchetti -fizban@tin.it diff --git a/Documentation/sound/oss/CMI8330 b/Documentation/sound/oss/CMI8330 deleted file mode 100644 index 8a5fd1611c6f..000000000000 --- a/Documentation/sound/oss/CMI8330 +++ /dev/null @@ -1,152 +0,0 @@ -Documentation for CMI 8330 (SoundPRO) -------------------------------------- -Alessandro Zummo - -( Be sure to read Documentation/sound/oss/SoundPro too ) - - -This adapter is now directly supported by the sb driver. - - The only thing you have to do is to compile the kernel sound -support as a module and to enable kernel ISAPnP support, -as shown below. - - -CONFIG_SOUND=m -CONFIG_SOUND_SB=m - -CONFIG_PNP=y -CONFIG_ISAPNP=y - - -and optionally: - - -CONFIG_SOUND_MPU401=m - - for MPU401 support. - - -(I suggest you to use "make menuconfig" or "make xconfig" - for a more comfortable configuration editing) - - - -Then you can do - - modprobe sb - -and everything will be (hopefully) configured. - -You should get something similar in syslog: - -sb: CMI8330 detected. -sb: CMI8330 sb base located at 0x220 -sb: CMI8330 mpu base located at 0x330 -sb: CMI8330 mail reports to Alessandro Zummo -sb: ISAPnP reports CMI 8330 SoundPRO at i/o 0x220, irq 7, dma 1,5 - - - - -The old documentation file follows for reference -purposes. - - -How to enable CMI 8330 (SOUNDPRO) soundchip on Linux ------------------------------------------- -Stefan Laudat - -[Note: The CMI 8338 is unrelated and is supported by cmpci.o] - - - In order to use CMI8330 under Linux you just have to use a proper isapnp.conf, a good isapnp and a little bit of patience. I use isapnp 1.17, but -you may get a better one I guess at http://www.roestock.demon.co.uk/isapnptools/. - - Of course you will have to compile kernel sound support as module, as shown below: - -CONFIG_SOUND=m -CONFIG_SOUND_OSS=m -CONFIG_SOUND_SB=m -CONFIG_SOUND_ADLIB=m -CONFIG_SOUND_MPU401=m -# Mikro$chaft sound system (kinda useful here ;)) -CONFIG_SOUND_MSS=m - - The /etc/isapnp.conf file will be: - - - - -(READPORT 0x0203) -(ISOLATE PRESERVE) -(IDENTIFY *) -(VERBOSITY 2) -(CONFLICT (IO FATAL)(IRQ FATAL)(DMA FATAL)(MEM FATAL)) # or WARNING -(VERIFYLD N) - - -# WSS - -(CONFIGURE CMI0001/16777472 (LD 0 -(IO 0 (SIZE 8) (BASE 0x0530)) -(IO 1 (SIZE 8) (BASE 0x0388)) -(INT 0 (IRQ 7 (MODE +E))) -(DMA 0 (CHANNEL 0)) -(NAME "CMI0001/16777472[0]{CMI8330/C3D Audio Adapter}") -(ACT Y) -)) - -# MPU - -(CONFIGURE CMI0001/16777472 (LD 1 -(IO 0 (SIZE 2) (BASE 0x0330)) -(INT 0 (IRQ 11 (MODE +E))) -(NAME "CMI0001/16777472[1]{CMI8330/C3D Audio Adapter}") -(ACT Y) -)) - -# Joystick - -(CONFIGURE CMI0001/16777472 (LD 2 -(IO 0 (SIZE 8) (BASE 0x0200)) -(NAME "CMI0001/16777472[2]{CMI8330/C3D Audio Adapter}") -(ACT Y) -)) - -# SoundBlaster - -(CONFIGURE CMI0001/16777472 (LD 3 -(IO 0 (SIZE 16) (BASE 0x0220)) -(INT 0 (IRQ 5 (MODE +E))) -(DMA 0 (CHANNEL 1)) -(DMA 1 (CHANNEL 5)) -(NAME "CMI0001/16777472[3]{CMI8330/C3D Audio Adapter}") -(ACT Y) -)) - - -(WAITFORKEY) - - - - The module sequence is trivial: - -/sbin/insmod soundcore -/sbin/insmod sound -/sbin/insmod uart401 -# insert this first -/sbin/insmod ad1848 io=0x530 irq=7 dma=0 soundpro=1 -# The sb module is an alternative to the ad1848 (Microsoft Sound System) -# Anyhow, this is full duplex and has MIDI -/sbin/insmod sb io=0x220 dma=1 dma16=5 irq=5 mpu_io=0x330 - - - -Alma Chao suggests the following in -a /etc/modprobe.d/*conf file: - -alias sound ad1848 -alias synth0 opl3 -options ad1848 io=0x530 irq=7 dma=0 soundpro=1 -options opl3 io=0x388 diff --git a/Documentation/sound/oss/ESS b/Documentation/sound/oss/ESS deleted file mode 100644 index bba93b4d2def..000000000000 --- a/Documentation/sound/oss/ESS +++ /dev/null @@ -1,34 +0,0 @@ -Documentation for the ESS AudioDrive chips - -In 2.4 kernels the SoundBlaster driver not only tries to detect an ESS chip, it -tries to detect the type of ESS chip too. The correct detection of the chip -doesn't always succeed however, so unless you use the kernel isapnp facilities -(and you chip is pnp capable) the default behaviour is 2.0 behaviour which -means: only detect ES688 and ES1688. - -All ESS chips now have a recording level setting. This is a need-to-have for -people who want to use their ESS for recording sound. - -Every chip that's detected as a later-than-es1688 chip has a 6 bits logarithmic -master volume control. - -Every chip that's detected as a ES1887 now has Full Duplex support. Made a -little testprogram that shows that is works, haven't seen a real program that -needs this however. - -For ESS chips an additional parameter "esstype" can be specified. This controls -the (auto) detection of the ESS chips. It can have 3 kinds of values: - --1 Act like 2.0 kernels: only detect ES688 or ES1688. -0 Try to auto-detect the chip (may fail for ES1688) -688 The chip will be treated as ES688 -1688 ,, ,, ,, ,, ,, ,, ES1688 -1868 ,, ,, ,, ,, ,, ,, ES1868 -1869 ,, ,, ,, ,, ,, ,, ES1869 -1788 ,, ,, ,, ,, ,, ,, ES1788 -1887 ,, ,, ,, ,, ,, ,, ES1887 -1888 ,, ,, ,, ,, ,, ,, ES1888 - -Because Full Duplex is supported for ES1887 you can specify a second DMA -channel by specifying module parameter dma16. It can be one of: 0, 1, 3 or 5. - diff --git a/Documentation/sound/oss/ESS1868 b/Documentation/sound/oss/ESS1868 deleted file mode 100644 index 55e922f21bc0..000000000000 --- a/Documentation/sound/oss/ESS1868 +++ /dev/null @@ -1,55 +0,0 @@ -Documentation for the ESS1868F AudioDrive PnP sound card - -The ESS1868 sound card is a PnP ESS1688-compatible 16-bit sound card. - -It should be automatically detected by the Linux Kernel isapnp support when you -load the sb.o module. Otherwise you should take care of: - - * The ESS1868 does not allow use of a 16-bit DMA, thus DMA 0, 1, 2, and 3 - may only be used. - - * isapnptools version 1.14 does work with ESS1868. Earlier versions might - not. - - * Sound support MUST be compiled as MODULES, not statically linked - into the kernel. - - -NOTE: this is only needed when not using the kernel isapnp support! - -For configuring the sound card's I/O addresses, IRQ and DMA, here is a -sample copy of the isapnp.conf directives regarding the ESS1868: - -(CONFIGURE ESS1868/-1 (LD 1 -(IO 0 (BASE 0x0220)) -(IO 1 (BASE 0x0388)) -(IO 2 (BASE 0x0330)) -(DMA 0 (CHANNEL 1)) -(INT 0 (IRQ 5 (MODE +E))) -(ACT Y) -)) - -(for a full working isapnp.conf file, remember the -(ISOLATE) -(IDENTIFY *) -at the beginning and the -(WAITFORKEY) -at the end.) - -In this setup, the main card I/O is 0x0220, FM synthesizer is 0x0388, and -the MPU-401 MIDI port is located at 0x0330. IRQ is IRQ 5, DMA is channel 1. - -After configuring the sound card via isapnp, to use the card you must load -the sound modules with the proper I/O information. Here is my setup: - -# ESS1868F AudioDrive initialization - -/sbin/modprobe sound -/sbin/insmod uart401 -/sbin/insmod sb io=0x220 irq=5 dma=1 dma16=-1 -/sbin/insmod mpu401 io=0x330 -/sbin/insmod opl3 io=0x388 -/sbin/insmod v_midi - -opl3 is the FM synthesizer -/sbin/insmod opl3 io=0x388 diff --git a/Documentation/sound/oss/Introduction b/Documentation/sound/oss/Introduction deleted file mode 100644 index 42da2d8fa372..000000000000 --- a/Documentation/sound/oss/Introduction +++ /dev/null @@ -1,459 +0,0 @@ -Introduction Notes on Modular Sound Drivers and Soundcore -Wade Hampton -2/14/2001 - -Purpose: -======== -This document provides some general notes on the modular -sound drivers and their configuration, along with the -support modules sound.o and soundcore.o. - -Note, some of this probably should be added to the Sound-HOWTO! - -Note, soundlow.o was present with 2.2 kernels but is not -required for 2.4.x kernels. References have been removed -to this. - - -Copying: -======== -none - - -History: -======== -0.1.0 11/20/1998 First version, draft -1.0.0 11/1998 Alan Cox changes, incorporation in 2.2.0 - as Documentation/sound/oss/Introduction -1.1.0 6/30/1999 Second version, added notes on making the drivers, - added info on multiple sound cards of similar types,] - added more diagnostics info, added info about esd. - added info on OSS and ALSA. -1.1.1 19991031 Added notes on sound-slot- and sound-service. - (Alan Cox) -1.1.2 20000920 Modified for Kernel 2.4 (Christoph Hellwig) -1.1.3 20010214 Minor notes and corrections (Wade Hampton) - Added examples of sound-slot-0, etc. - - -Modular Sound Drivers: -====================== - -Thanks to the GREAT work by Alan Cox (alan@lxorguk.ukuu.org.uk), - -[And Oleg Drokin, Thomas Sailer, Andrew Veliath and more than a few - others - not to mention Hannu's original code being designed well - enough to cope with that kind of chopping up](Alan) - -the standard Linux kernels support a modular sound driver. From -Alan's comments in linux/drivers/sound/README.FIRST: - - The modular sound driver patches were funded by Red Hat Software - (www.redhat.com). The sound driver here is thus a modified version of - Hannu's code. Please bear that in mind when considering the appropriate - forums for bug reporting. - -The modular sound drivers may be loaded via insmod or modprobe. -To support all the various sound modules, there are two general -support modules that must be loaded first: - - soundcore.o: Top level handler for the sound system, provides - a set of functions for registration of devices - by type. - - sound.o: Common sound functions required by all modules. - -For the specific sound modules (e.g., sb.o for the Soundblaster), -read the documentation on that module to determine what options -are available, for example IRQ, address, DMA. - -Warning, the options for different cards sometime use different names -for the same or a similar feature (dma1= versus dma16=). As a last -resort, inspect the code (search for module_param). - -Notes: - -1. There is a new OpenSource sound driver called ALSA which is - currently under development: http://www.alsa-project.org/ - The ALSA drivers support some newer hardware that may not - be supported by this sound driver and also provide some - additional features. - -2. The commercial OSS driver may be obtained from the site: - http://www.opensound.com. This may be used for cards that - are unsupported by the kernel driver, or may be used - by other operating systems. - -3. The enlightenment sound daemon may be used for playing - multiple sounds at the same time via a single card, eliminating - some of the requirements for multiple sound card systems. For - more information, see: http://www.tux.org/~ricdude/EsounD.html - The "esd" program may be used with the real-player and mpeg - players like mpg123 and x11amp. The newer real-player - and some games even include built-in support for ESD! - - -Building the Modules: -===================== - -This document does not provide full details on building the -kernel, etc. The notes below apply only to making the kernel -sound modules. If this conflicts with the kernel's README, -the README takes precedence. - -1. To make the kernel sound modules, cd to your /usr/src/linux - directory (typically) and type make config, make menuconfig, - or make xconfig (to start the command line, dialog, or x-based - configuration tool). - -2. Select the Sound option and a dialog will be displayed. - -3. Select M (module) for "Sound card support". - -4. Select your sound driver(s) as a module. For ProAudio, Sound - Blaster, etc., select M (module) for OSS sound modules. - [thanks to Marvin Stodolsky ]A - -5. Make the kernel (e.g., make bzImage), and install the kernel. - -6. Make the modules and install them (make modules; make modules_install). - -Note, for 2.5.x kernels, make sure you have the newer module-init-tools -installed or modules will not be loaded properly. 2.5.x requires an -updated module-init-tools. - - -Plug and Play (PnP: -=================== - -If the sound card is an ISA PnP card, isapnp may be used -to configure the card. See the file isapnp.txt in the -directory one level up (e.g., /usr/src/linux/Documentation). - -Also the 2.4.x kernels provide PnP capabilities, see the -file NEWS in this directory. - -PCI sound cards are highly recommended, as they are far -easier to configure and from what I have read, they use -less resources and are more CPU efficient. - - -INSMOD: -======= - -If loading via insmod, the common modules must be loaded in the -order below BEFORE loading the other sound modules. The card-specific -modules may then be loaded (most require parameters). For example, -I use the following via a shell script to load my SoundBlaster: - -SB_BASE=0x240 -SB_IRQ=9 -SB_DMA=3 -SB_DMA2=5 -SB_MPU=0x300 -# -echo Starting sound -/sbin/insmod soundcore -/sbin/insmod sound -# -echo Starting sound blaster.... -/sbin/insmod uart401 -/sbin/insmod sb io=$SB_BASE irq=$SB_IRQ dma=$SB_DMA dma16=$SB_DMA2 mpu_io=$SB_MP - -When using sound as a module, I typically put these commands -in a file such as /root/soundon.sh. - - -MODPROBE: -========= - -If loading via modprobe, these common files are automatically loaded when -requested by modprobe. For example, my /etc/modprobe.d/oss.conf contains: - -alias sound sb -options sb io=0x240 irq=9 dma=3 dma16=5 mpu_io=0x300 - -All you need to do to load the module is: - - /sbin/modprobe sb - - -Sound Status: -============= - -The status of sound may be read/checked by: - cat (anyfile).au >/dev/audio - -[WWH: This may not work properly for SoundBlaster PCI 128 cards -such as the es1370/1 (see the es1370/1 files in this directory) -as they do not automatically support uLaw on /dev/audio.] - -The status of the modules and which modules depend on -which other modules may be checked by: - /sbin/lsmod - -/sbin/lsmod should show something like the following: - sb 26280 0 - uart401 5640 0 [sb] - sound 57112 0 [sb uart401] - soundcore 1968 8 [sb sound] - - -Removing Sound: -=============== - -Sound may be removed by using /sbin/rmmod in the reverse order -in which you load the modules. Note, if a program has a sound device -open (e.g., xmixer), that module (and the modules on which it -depends) may not be unloaded. - -For example, I use the following to remove my Soundblaster (rmmod -in the reverse order in which I loaded the modules): - -/sbin/rmmod sb -/sbin/rmmod uart401 -/sbin/rmmod sound -/sbin/rmmod soundcore - -When using sound as a module, I typically put these commands -in a script such as /root/soundoff.sh. - - -Removing Sound for use with OSS: -================================ - -If you get really stuck or have a card that the kernel modules -will not support, you can get a commercial sound driver from -http://www.opensound.com. Before loading the commercial sound -driver, you should do the following: - -1. remove sound modules (detailed above) -2. remove the sound modules from /etc/modprobe.d/*.conf -3. move the sound modules from /lib/modules//misc - (for example, I make a /lib/modules//misc/tmp - directory and copy the sound module files to that - directory). - - -Multiple Sound Cards: -===================== - -The sound drivers will support multiple sound cards and there -are some great applications like multitrack that support them. -Typically, you need two sound cards of different types. Note, this -uses more precious interrupts and DMA channels and sometimes -can be a configuration nightmare. I have heard reports of 3-4 -sound cards (typically I only use 2). You can sometimes use -multiple PCI sound cards of the same type. - -On my machine I have two sound cards (cs4232 and Soundblaster Vibra -16). By loading sound as modules, I can control which is the first -sound device (/dev/dsp, /dev/audio, /dev/mixer) and which is -the second. Normally, the cs4232 (Dell sound on the motherboard) -would be the first sound device, but I prefer the Soundblaster. -All you have to do is to load the one you want as /dev/dsp -first (in my case "sb") and then load the other one -(in my case "cs4232"). - -If you have two cards of the same type that are jumpered -cards or different PnP revisions, you may load the same -module twice. For example, I have a SoundBlaster vibra 16 -and an older SoundBlaster 16 (jumpers). To load the module -twice, you need to do the following: - -1. Copy the sound modules to a new name. For example - sb.o could be copied (or symlinked) to sb1.o for the - second SoundBlaster. - -2. Make a second entry in /etc/modprobe.d/*conf, for example, - sound1 or sb1. This second entry should refer to the - new module names for example sb1, and should include - the I/O, etc. for the second sound card. - -3. Update your soundon.sh script, etc. - -Warning: I have never been able to get two PnP sound cards of the -same type to load at the same time. I have tried this several times -with the Soundblaster Vibra 16 cards. OSS has indicated that this -is a PnP problem.... If anyone has any luck doing this, please -send me an E-MAIL. PCI sound cards should not have this problem.a -Since this was originally release, I have received a couple of -mails from people who have accomplished this! - -NOTE: In Linux 2.4 the Sound Blaster driver (and only this one yet) -supports multiple cards with one module by default. -Read the file 'Soundblaster' in this directory for details. - - -Sound Problems: -=============== - -First RTFM (including the troubleshooting section -in the Sound-HOWTO). - -1) If you are having problems loading the modules (for - example, if you get device conflict errors) try the - following: - - A) If you have Win95 or NT on the same computer, - write down what addresses, IRQ, and DMA channels - those were using for the same hardware. You probably - can use these addresses, IRQs, and DMA channels. - You should really do this BEFORE attempting to get - sound working! - - B) Check (cat) /proc/interrupts, /proc/ioports, - and /proc/dma. Are you trying to use an address, - IRQ or DMA port that another device is using? - - C) Check (cat) /proc/isapnp - - D) Inspect your /var/log/messages file. Often that will - indicate what IRQ or IO port could not be obtained. - - E) Try another port or IRQ. Note this may involve - using the PnP tools to move the sound card to - another location. Sometimes this is the only way - and it is more or less trial and error. - -2) If you get motor-boating (the same sound or part of a - sound clip repeated), you probably have either an IRQ - or DMA conflict. Move the card to another IRQ or DMA - port. This has happened to me when playing long files - when I had an IRQ conflict. - -3. If you get dropouts or pauses when playing high sample - rate files such as using mpg123 or x11amp/xmms, you may - have too slow of a CPU and may have to use the options to - play the files at 1/2 speed. For example, you may use - the -2 or -4 option on mpg123. You may also get this - when trying to play mpeg files stored on a CD-ROM - (my Toshiba T8000 PII/366 sometimes has this problem). - -4. If you get "cannot access device" errors, your /dev/dsp - files, etc. may be set to owner root, mode 600. You - may have to use the command: - chmod 666 /dev/dsp /dev/mixer /dev/audio - -5. If you get "device busy" errors, another program has the - sound device open. For example, if using the Enlightenment - sound daemon "esd", the "esd" program has the sound device. - If using "esd", please RTFM the docs on ESD. For example, - esddsp may be used to play files via a non-esd - aware program. - -6) Ask for help on the sound list or send E-MAIL to the - sound driver author/maintainer. - -7) Turn on debug in drivers/sound/sound_config.h (DEB, DDB, MDB). - -8) If the system reports insufficient DMA memory then you may want to - load sound with the "dmabufs=1" option. Or in /etc/conf.modules add - - preinstall sound dmabufs=1 - - This makes the sound system allocate its buffers and hang onto them. - - You may also set persistent DMA when building a 2.4.x kernel. - - -Configuring Sound: -================== - -There are several ways of configuring your sound: - -1) On the kernel command line (when using the sound driver(s) - compiled in the kernel). Check the driver source and - documentation for details. - -2) On the command line when using insmod or in a bash script - using command line calls to load sound. - -3) In /etc/modprobe.d/*conf when using modprobe. - -4) Via Red Hat's GPL'd /usr/sbin/sndconfig program (text based). - -5) Via the OSS soundconf program (with the commercial version - of the OSS driver. - -6) By just loading the module and let isapnp do everything relevant - for you. This works only with a few drivers yet and - of course - - only with isapnp hardware. - -And I am sure, several other ways. - -Anyone want to write a linuxconf module for configuring sound? - - -Module Loading: -=============== - -When a sound card is first referenced and sound is modular, the sound system -will ask for the sound devices to be loaded. Initially it requests that -the driver for the sound system is loaded. It then will ask for -sound-slot-0, where 0 is the first sound card. (sound-slot-1 the second and -so on). Thus you can do - -alias sound-slot-0 sb - -To load a soundblaster at this point. If the slot loading does not provide -the desired device - for example a soundblaster does not directly provide -a midi synth in all cases then it will request "sound-service-0-n" where n -is - - 0 Mixer - - 2 MIDI - - 3, 4 DSP audio - - -For example, I use the following to load my Soundblaster PCI 128 -(ES 1371) card first, followed by my SoundBlaster Vibra 16 card, -then by my TV card: - -# Load the Soundblaster PCI 128 as /dev/dsp, /dev/dsp1, /dev/mixer -alias sound-slot-0 es1371 - -# Load the Soundblaster Vibra 16 as /dev/dsp2, /dev/mixer1 -alias sound-slot-1 sb -options sb io=0x240 irq=5 dma=1 dma16=5 mpu_io=0x330 - -# Load the BTTV (TV card) as /dev/mixer2 -alias sound-slot-2 bttv -alias sound-service-2-0 tvmixer - -pre-install bttv modprobe tuner ; modprobe tvmixer -pre-install tvmixer modprobe msp3400; modprobe tvaudio -options tuner debug=0 type=8 -options bttv card=0 radio=0 pll=0 - - -For More Information (RTFM): -============================ -1) Information on kernel modules: manual pages for insmod and modprobe. - -2) Information on PnP, RTFM manual pages for isapnp. - -3) Sound-HOWTO and Sound-Playing-HOWTO. - -4) OSS's WWW site at http://www.opensound.com. - -5) All the files in Documentation/sound. - -6) The comments and code in linux/drivers/sound. - -7) The sndconfig and rhsound documentation from Red Hat. - -8) The Linux-sound mailing list: sound-list@redhat.com. - -9) Enlightenment documentation (for info on esd) - http://www.tux.org/~ricdude/EsounD.html. - -10) ALSA home page: http://www.alsa-project.org/ - - -Contact Information: -==================== -Wade Hampton: (whampton@staffnet.com) - diff --git a/Documentation/sound/oss/MultiSound b/Documentation/sound/oss/MultiSound deleted file mode 100644 index e4a18bb7f73a..000000000000 --- a/Documentation/sound/oss/MultiSound +++ /dev/null @@ -1,1137 +0,0 @@ -#! /bin/sh -# -# Turtle Beach MultiSound Driver Notes -# -- Andrew Veliath -# -# Last update: September 10, 1998 -# Corresponding msnd driver: 0.8.3 -# -# ** This file is a README (top part) and shell archive (bottom part). -# The corresponding archived utility sources can be unpacked by -# running `sh MultiSound' (the utilities are only needed for the -# Pinnacle and Fiji cards). ** -# -# -# -=-=- Getting Firmware -=-=- -# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -# -# See the section `Obtaining and Creating Firmware Files' in this -# document for instructions on obtaining the necessary firmware -# files. -# -# -# Supported Features -# ~~~~~~~~~~~~~~~~~~ -# -# Currently, full-duplex digital audio (/dev/dsp only, /dev/audio is -# not currently available) and mixer functionality (/dev/mixer) are -# supported (memory mapped digital audio is not yet supported). -# Digital transfers and monitoring can be done as well if you have -# the digital daughterboard (see the section on using the S/PDIF port -# for more information). -# -# Support for the Turtle Beach MultiSound Hurricane architecture is -# composed of the following modules (these can also operate compiled -# into the kernel): -# -# msnd - MultiSound base (requires soundcore) -# -# msnd_classic - Base audio/mixer support for Classic, Monetery and -# Tahiti cards -# -# msnd_pinnacle - Base audio/mixer support for Pinnacle and Fiji cards -# -# -# Important Notes - Read Before Using -# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -# -# The firmware files are not included (may change in future). You -# must obtain these images from Turtle Beach (they are included in -# the MultiSound Development Kits), and place them in /etc/sound for -# example, and give the full paths in the Linux configuration. If -# you are compiling in support for the MultiSound driver rather than -# using it as a module, these firmware files must be accessible -# during kernel compilation. -# -# Please note these files must be binary files, not assembler. See -# the section later in this document for instructions to obtain these -# files. -# -# -# Configuring Card Resources -# ~~~~~~~~~~~~~~~~~~~~~~~~~~ -# -# ** This section is very important, as your card may not work at all -# or your machine may crash if you do not do this correctly. ** -# -# * Classic/Monterey/Tahiti -# -# These cards are configured through the driver msnd_classic. You must -# know the io port, then the driver will select the irq and memory resources -# on the card. It is up to you to know if these are free locations or now, -# a conflict can lock the machine up. -# -# * Pinnacle/Fiji -# -# The Pinnacle and Fiji cards have an extra config port, either -# 0x250, 0x260 or 0x270. This port can be disabled to have the card -# configured strictly through PnP, however you lose the ability to -# access the IDE controller and joystick devices on this card when -# using PnP. The included pinnaclecfg program in this shell archive -# can be used to configure the card in non-PnP mode, and in PnP mode -# you can use isapnptools. These are described briefly here. -# -# pinnaclecfg is not required; you can use the msnd_pinnacle module -# to fully configure the card as well. However, pinnaclecfg can be -# used to change the resource values of a particular device after the -# msnd_pinnacle module has been loaded. If you are compiling the -# driver into the kernel, you must set these values during compile -# time, however other peripheral resource values can be changed with -# the pinnaclecfg program after the kernel is loaded. -# -# -# *** PnP mode -# -# Use pnpdump to obtain a sample configuration if you can; I was able -# to obtain one with the command `pnpdump 1 0x203' -- this may vary -# for you (running pnpdump by itself did not work for me). Then, -# edit this file and use isapnp to uncomment and set the card values. -# Use these values when inserting the msnd_pinnacle module. Using -# this method, you can set the resources for the DSP and the Kurzweil -# synth (Pinnacle). Since Linux does not directly support PnP -# devices, you may have difficulty when using the card in PnP mode -# when it the driver is compiled into the kernel. Using non-PnP mode -# is preferable in this case. -# -# Here is an example mypinnacle.conf for isapnp that sets the card to -# io base 0x210, irq 5 and mem 0xd8000, and also sets the Kurzweil -# synth to 0x330 and irq 9 (may need editing for your system): -# -# (READPORT 0x0203) -# (CSN 2) -# (IDENTIFY *) -# -# # DSP -# (CONFIGURE BVJ0440/-1 (LD 0 -# (INT 0 (IRQ 5 (MODE +E))) (IO 0 (BASE 0x0210)) (MEM 0 (BASE 0x0d8000)) -# (ACT Y))) -# -# # Kurzweil Synth (Pinnacle Only) -# (CONFIGURE BVJ0440/-1 (LD 1 -# (IO 0 (BASE 0x0330)) (INT 0 (IRQ 9 (MODE +E))) -# (ACT Y))) -# -# (WAITFORKEY) -# -# -# *** Non-PnP mode -# -# The second way is by running the card in non-PnP mode. This -# actually has some advantages in that you can access some other -# devices on the card, such as the joystick and IDE controller. To -# configure the card, unpack this shell archive and build the -# pinnaclecfg program. Using this program, you can assign the -# resource values to the card's devices, or disable the devices. As -# an alternative to using pinnaclecfg, you can specify many of the -# configuration values when loading the msnd_pinnacle module (or -# during kernel configuration when compiling the driver into the -# kernel). -# -# If you specify cfg=0x250 for the msnd_pinnacle module, it -# automatically configure the card to the given io, irq and memory -# values using that config port (the config port is jumper selectable -# on the card to 0x250, 0x260 or 0x270). -# -# See the `msnd_pinnacle Additional Options' section below for more -# information on these parameters (also, if you compile the driver -# directly into the kernel, these extra parameters can be useful -# here). -# -# -# ** It is very easy to cause problems in your machine if you choose a -# resource value which is incorrect. ** -# -# -# Examples -# ~~~~~~~~ -# -# * MultiSound Classic/Monterey/Tahiti: -# -# modprobe soundcore -# insmod msnd -# insmod msnd_classic io=0x290 irq=7 mem=0xd0000 -# -# * MultiSound Pinnacle in PnP mode: -# -# modprobe soundcore -# insmod msnd -# isapnp mypinnacle.conf -# insmod msnd_pinnacle io=0x210 irq=5 mem=0xd8000 <-- match mypinnacle.conf values -# -# * MultiSound Pinnacle in non-PnP mode (replace 0x250 with your configuration port, -# one of 0x250, 0x260 or 0x270): -# -# insmod soundcore -# insmod msnd -# insmod msnd_pinnacle cfg=0x250 io=0x290 irq=5 mem=0xd0000 -# -# * To use the MPU-compatible Kurzweil synth on the Pinnacle in PnP -# mode, add the following (assumes you did `isapnp mypinnacle.conf'): -# -# insmod sound -# insmod mpu401 io=0x330 irq=9 <-- match mypinnacle.conf values -# -# * To use the MPU-compatible Kurzweil synth on the Pinnacle in non-PnP -# mode, add the following. Note how we first configure the peripheral's -# resources, _then_ install a Linux driver for it: -# -# insmod sound -# pinnaclecfg 0x250 mpu 0x330 9 -# insmod mpu401 io=0x330 irq=9 -# -# -- OR you can use the following sequence without pinnaclecfg in non-PnP mode: -# -# insmod soundcore -# insmod msnd -# insmod msnd_pinnacle cfg=0x250 io=0x290 irq=5 mem=0xd0000 mpu_io=0x330 mpu_irq=9 -# insmod sound -# insmod mpu401 io=0x330 irq=9 -# -# * To setup the joystick port on the Pinnacle in non-PnP mode (though -# you have to find the actual Linux joystick driver elsewhere), you -# can use pinnaclecfg: -# -# pinnaclecfg 0x250 joystick 0x200 -# -# -- OR you can configure this using msnd_pinnacle with the following: -# -# insmod soundcore -# insmod msnd -# insmod msnd_pinnacle cfg=0x250 io=0x290 irq=5 mem=0xd0000 joystick_io=0x200 -# -# -# msnd_classic, msnd_pinnacle Required Options -# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -# -# If the following options are not given, the module will not load. -# Examine the kernel message log for informative error messages. -# WARNING--probing isn't supported so try to make sure you have the -# correct shared memory area, otherwise you may experience problems. -# -# io I/O base of DSP, e.g. io=0x210 -# irq IRQ number, e.g. irq=5 -# mem Shared memory area, e.g. mem=0xd8000 -# -# -# msnd_classic, msnd_pinnacle Additional Options -# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -# -# fifosize The digital audio FIFOs, in kilobytes. If not -# specified, the default will be used. Increasing -# this value will reduce the chance of a FIFO -# underflow at the expense of increasing overall -# latency. For example, fifosize=512 will -# allocate 512kB read and write FIFOs (1MB total). -# While this may reduce dropouts, a heavy machine -# load will undoubtedly starve the FIFO of data -# and you will eventually get dropouts. One -# option is to alter the scheduling priority of -# the playback process, using `nice' or some form -# of POSIX soft real-time scheduling. -# -# calibrate_signal Setting this to one calibrates the ADCs to the -# signal, zero calibrates to the card (defaults -# to zero). -# -# -# msnd_pinnacle Additional Options -# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -# -# digital Specify digital=1 to enable the S/PDIF input -# if you have the digital daughterboard -# adapter. This will enable access to the -# DIGITAL1 input for the soundcard in the mixer. -# Some mixer programs might have trouble setting -# the DIGITAL1 source as an input. If you have -# trouble, you can try the setdigital.c program -# at the bottom of this document. -# -# cfg Non-PnP configuration port for the Pinnacle -# and Fiji (typically 0x250, 0x260 or 0x270, -# depending on the jumper configuration). If -# this option is omitted, then it is assumed -# that the card is in PnP mode, and that the -# specified DSP resource values are already -# configured with PnP (i.e. it won't attempt to -# do any sort of configuration). -# -# When the Pinnacle is in non-PnP mode, you can use the following -# options to configure particular devices. If a full specification -# for a device is not given, then the device is not configured. Note -# that you still must use a Linux driver for any of these devices -# once their resources are setup (such as the Linux joystick driver, -# or the MPU401 driver from OSS for the Kurzweil synth). -# -# mpu_io I/O port of MPU (on-board Kurzweil synth) -# mpu_irq IRQ of MPU (on-board Kurzweil synth) -# ide_io0 First I/O port of IDE controller -# ide_io1 Second I/O port of IDE controller -# ide_irq IRQ IDE controller -# joystick_io I/O port of joystick -# -# -# Obtaining and Creating Firmware Files -# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -# -# For the Classic/Tahiti/Monterey -# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -# -# Download to /tmp and unzip the following file from Turtle Beach: -# -# ftp://ftp.voyetra.com/pub/tbs/msndcl/msndvkit.zip -# -# When unzipped, unzip the file named MsndFiles.zip. Then copy the -# following firmware files to /etc/sound (note the file renaming): -# -# cp DSPCODE/MSNDINIT.BIN /etc/sound/msndinit.bin -# cp DSPCODE/MSNDPERM.REB /etc/sound/msndperm.bin -# -# When configuring the Linux kernel, specify /etc/sound/msndinit.bin and -# /etc/sound/msndperm.bin for the two firmware files (Linux kernel -# versions older than 2.2 do not ask for firmware paths, and are -# hardcoded to /etc/sound). -# -# If you are compiling the driver into the kernel, these files must -# be accessible during compilation, but will not be needed later. -# The files must remain, however, if the driver is used as a module. -# -# -# For the Pinnacle/Fiji -# ~~~~~~~~~~~~~~~~~~~~~ -# -# Download to /tmp and unzip the following file from Turtle Beach (be -# sure to use the entire URL; some have had trouble navigating to the -# URL): -# -# ftp://ftp.voyetra.com/pub/tbs/pinn/pnddk100.zip -# -# Unpack this shell archive, and run make in the created directory -# (you need a C compiler and flex to build the utilities). This -# should give you the executables conv, pinnaclecfg and setdigital. -# conv is only used temporarily here to create the firmware files, -# while pinnaclecfg is used to configure the Pinnacle or Fiji card in -# non-PnP mode, and setdigital can be used to set the S/PDIF input on -# the mixer (pinnaclecfg and setdigital should be copied to a -# convenient place, possibly run during system initialization). -# -# To generating the firmware files with the `conv' program, we create -# the binary firmware files by doing the following conversion -# (assuming the archive unpacked into a directory named PINNDDK): -# -# ./conv < PINNDDK/dspcode/pndspini.asm > /etc/sound/pndspini.bin -# ./conv < PINNDDK/dspcode/pndsperm.asm > /etc/sound/pndsperm.bin -# -# The conv (and conv.l) program is not needed after conversion and can -# be safely deleted. Then, when configuring the Linux kernel, specify -# /etc/sound/pndspini.bin and /etc/sound/pndsperm.bin for the two -# firmware files (Linux kernel versions older than 2.2 do not ask for -# firmware paths, and are hardcoded to /etc/sound). -# -# If you are compiling the driver into the kernel, these files must -# be accessible during compilation, but will not be needed later. -# The files must remain, however, if the driver is used as a module. -# -# -# Using Digital I/O with the S/PDIF Port -# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -# -# If you have a Pinnacle or Fiji with the digital daughterboard and -# want to set it as the input source, you can use this program if you -# have trouble trying to do it with a mixer program (be sure to -# insert the module with the digital=1 option, or say Y to the option -# during compiled-in kernel operation). Upon selection of the S/PDIF -# port, you should be able monitor and record from it. -# -# There is something to note about using the S/PDIF port. Digital -# timing is taken from the digital signal, so if a signal is not -# connected to the port and it is selected as recording input, you -# will find PCM playback to be distorted in playback rate. Also, -# attempting to record at a sampling rate other than the DAT rate may -# be problematic (i.e. trying to record at 8000Hz when the DAT signal -# is 44100Hz). If you have a problem with this, set the recording -# input to analog if you need to record at a rate other than that of -# the DAT rate. -# -# -# -- Shell archive attached below, just run `sh MultiSound' to extract. -# Contains Pinnacle/Fiji utilities to convert firmware, configure -# in non-PnP mode, and select the DIGITAL1 input for the mixer. -# -# -#!/bin/sh -# This is a shell archive (produced by GNU sharutils 4.2). -# To extract the files from this archive, save it to some FILE, remove -# everything before the `!/bin/sh' line above, then type `sh FILE'. -# -# Made on 1998-12-04 10:07 EST by . -# Source directory was `/home/andrewtv/programming/pinnacle/pinnacle'. -# -# Existing files will *not* be overwritten unless `-c' is specified. -# -# This shar contains: -# length mode name -# ------ ---------- ------------------------------------------ -# 2046 -rw-rw-r-- MultiSound.d/setdigital.c -# 10235 -rw-rw-r-- MultiSound.d/pinnaclecfg.c -# 106 -rw-rw-r-- MultiSound.d/Makefile -# 141 -rw-rw-r-- MultiSound.d/conv.l -# 1472 -rw-rw-r-- MultiSound.d/msndreset.c -# -save_IFS="${IFS}" -IFS="${IFS}:" -gettext_dir=FAILED -locale_dir=FAILED -first_param="$1" -for dir in $PATH -do - if test "$gettext_dir" = FAILED && test -f $dir/gettext \ - && ($dir/gettext --version >/dev/null 2>&1) - then - set `$dir/gettext --version 2>&1` - if test "$3" = GNU - then - gettext_dir=$dir - fi - fi - if test "$locale_dir" = FAILED && test -f $dir/shar \ - && ($dir/shar --print-text-domain-dir >/dev/null 2>&1) - then - locale_dir=`$dir/shar --print-text-domain-dir` - fi -done -IFS="$save_IFS" -if test "$locale_dir" = FAILED || test "$gettext_dir" = FAILED -then - echo=echo -else - TEXTDOMAINDIR=$locale_dir - export TEXTDOMAINDIR - TEXTDOMAIN=sharutils - export TEXTDOMAIN - echo="$gettext_dir/gettext -s" -fi -touch -am 1231235999 $$.touch >/dev/null 2>&1 -if test ! -f 1231235999 && test -f $$.touch; then - shar_touch=touch -else - shar_touch=: - echo - $echo 'WARNING: not restoring timestamps. Consider getting and' - $echo "installing GNU \`touch', distributed in GNU File Utilities..." - echo -fi -rm -f 1231235999 $$.touch -# -if mkdir _sh01426; then - $echo 'x -' 'creating lock directory' -else - $echo 'failed to create lock directory' - exit 1 -fi -# ============= MultiSound.d/setdigital.c ============== -if test ! -d 'MultiSound.d'; then - $echo 'x -' 'creating directory' 'MultiSound.d' - mkdir 'MultiSound.d' -fi -if test -f 'MultiSound.d/setdigital.c' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'MultiSound.d/setdigital.c' '(file already exists)' -else - $echo 'x -' extracting 'MultiSound.d/setdigital.c' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'MultiSound.d/setdigital.c' && -/********************************************************************* -X * -X * setdigital.c - sets the DIGITAL1 input for a mixer -X * -X * Copyright (C) 1998 Andrew Veliath -X * -X * This program is free software; you can redistribute it and/or modify -X * it under the terms of the GNU General Public License as published by -X * the Free Software Foundation; either version 2 of the License, or -X * (at your option) any later version. -X * -X * This program is distributed in the hope that it will be useful, -X * but WITHOUT ANY WARRANTY; without even the implied warranty of -X * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -X * GNU General Public License for more details. -X * -X * You should have received a copy of the GNU General Public License -X * along with this program; if not, write to the Free Software -X * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -X * -X ********************************************************************/ -X -#include -#include -#include -#include -#include -#include -#include -X -int main(int argc, char *argv[]) -{ -X int fd; -X unsigned long recmask, recsrc; -X -X if (argc != 2) { -X fprintf(stderr, "usage: setdigital \n"); -X exit(1); -X } -X -X if ((fd = open(argv[1], O_RDWR)) < 0) { -X perror(argv[1]); -X exit(1); -X } -X -X if (ioctl(fd, SOUND_MIXER_READ_RECMASK, &recmask) < 0) { -X fprintf(stderr, "error: ioctl read recording mask failed\n"); -X perror("ioctl"); -X close(fd); -X exit(1); -X } -X -X if (!(recmask & SOUND_MASK_DIGITAL1)) { -X fprintf(stderr, "error: cannot find DIGITAL1 device in mixer\n"); -X close(fd); -X exit(1); -X } -X -X if (ioctl(fd, SOUND_MIXER_READ_RECSRC, &recsrc) < 0) { -X fprintf(stderr, "error: ioctl read recording source failed\n"); -X perror("ioctl"); -X close(fd); -X exit(1); -X } -X -X recsrc |= SOUND_MASK_DIGITAL1; -X -X if (ioctl(fd, SOUND_MIXER_WRITE_RECSRC, &recsrc) < 0) { -X fprintf(stderr, "error: ioctl write recording source failed\n"); -X perror("ioctl"); -X close(fd); -X exit(1); -X } -X -X close(fd); -X -X return 0; -} -SHAR_EOF - $shar_touch -am 1204092598 'MultiSound.d/setdigital.c' && - chmod 0664 'MultiSound.d/setdigital.c' || - $echo 'restore of' 'MultiSound.d/setdigital.c' 'failed' - if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \ - && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then - md5sum -c << SHAR_EOF >/dev/null 2>&1 \ - || $echo 'MultiSound.d/setdigital.c:' 'MD5 check failed' -e87217fc3e71288102ba41fd81f71ec4 MultiSound.d/setdigital.c -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'MultiSound.d/setdigital.c'`" - test 2046 -eq "$shar_count" || - $echo 'MultiSound.d/setdigital.c:' 'original size' '2046,' 'current size' "$shar_count!" - fi -fi -# ============= MultiSound.d/pinnaclecfg.c ============== -if test -f 'MultiSound.d/pinnaclecfg.c' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'MultiSound.d/pinnaclecfg.c' '(file already exists)' -else - $echo 'x -' extracting 'MultiSound.d/pinnaclecfg.c' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'MultiSound.d/pinnaclecfg.c' && -/********************************************************************* -X * -X * pinnaclecfg.c - Pinnacle/Fiji Device Configuration Program -X * -X * This is for NON-PnP mode only. For PnP mode, use isapnptools. -X * -X * This is Linux-specific, and must be run with root permissions. -X * -X * Part of the Turtle Beach MultiSound Sound Card Driver for Linux -X * -X * Copyright (C) 1998 Andrew Veliath -X * -X * This program is free software; you can redistribute it and/or modify -X * it under the terms of the GNU General Public License as published by -X * the Free Software Foundation; either version 2 of the License, or -X * (at your option) any later version. -X * -X * This program is distributed in the hope that it will be useful, -X * but WITHOUT ANY WARRANTY; without even the implied warranty of -X * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -X * GNU General Public License for more details. -X * -X * You should have received a copy of the GNU General Public License -X * along with this program; if not, write to the Free Software -X * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -X * -X ********************************************************************/ -X -#include -#include -#include -#include -#include -#include -#include -X -#define IREG_LOGDEVICE 0x07 -#define IREG_ACTIVATE 0x30 -#define LD_ACTIVATE 0x01 -#define LD_DISACTIVATE 0x00 -#define IREG_EECONTROL 0x3F -#define IREG_MEMBASEHI 0x40 -#define IREG_MEMBASELO 0x41 -#define IREG_MEMCONTROL 0x42 -#define IREG_MEMRANGEHI 0x43 -#define IREG_MEMRANGELO 0x44 -#define MEMTYPE_8BIT 0x00 -#define MEMTYPE_16BIT 0x02 -#define MEMTYPE_RANGE 0x00 -#define MEMTYPE_HIADDR 0x01 -#define IREG_IO0_BASEHI 0x60 -#define IREG_IO0_BASELO 0x61 -#define IREG_IO1_BASEHI 0x62 -#define IREG_IO1_BASELO 0x63 -#define IREG_IRQ_NUMBER 0x70 -#define IREG_IRQ_TYPE 0x71 -#define IRQTYPE_HIGH 0x02 -#define IRQTYPE_LOW 0x00 -#define IRQTYPE_LEVEL 0x01 -#define IRQTYPE_EDGE 0x00 -X -#define HIBYTE(w) ((BYTE)(((WORD)(w) >> 8) & 0xFF)) -#define LOBYTE(w) ((BYTE)(w)) -#define MAKEWORD(low,hi) ((WORD)(((BYTE)(low))|(((WORD)((BYTE)(hi)))<<8))) -X -typedef __u8 BYTE; -typedef __u16 USHORT; -typedef __u16 WORD; -X -static int config_port = -1; -X -static int msnd_write_cfg(int cfg, int reg, int value) -{ -X outb(reg, cfg); -X outb(value, cfg + 1); -X if (value != inb(cfg + 1)) { -X fprintf(stderr, "error: msnd_write_cfg: I/O error\n"); -X return -EIO; -X } -X return 0; -} -X -static int msnd_read_cfg(int cfg, int reg) -{ -X outb(reg, cfg); -X return inb(cfg + 1); -} -X -static int msnd_write_cfg_io0(int cfg, int num, WORD io) -{ -X if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) -X return -EIO; -X if (msnd_write_cfg(cfg, IREG_IO0_BASEHI, HIBYTE(io))) -X return -EIO; -X if (msnd_write_cfg(cfg, IREG_IO0_BASELO, LOBYTE(io))) -X return -EIO; -X return 0; -} -X -static int msnd_read_cfg_io0(int cfg, int num, WORD *io) -{ -X if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) -X return -EIO; -X -X *io = MAKEWORD(msnd_read_cfg(cfg, IREG_IO0_BASELO), -X msnd_read_cfg(cfg, IREG_IO0_BASEHI)); -X -X return 0; -} -X -static int msnd_write_cfg_io1(int cfg, int num, WORD io) -{ -X if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) -X return -EIO; -X if (msnd_write_cfg(cfg, IREG_IO1_BASEHI, HIBYTE(io))) -X return -EIO; -X if (msnd_write_cfg(cfg, IREG_IO1_BASELO, LOBYTE(io))) -X return -EIO; -X return 0; -} -X -static int msnd_read_cfg_io1(int cfg, int num, WORD *io) -{ -X if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) -X return -EIO; -X -X *io = MAKEWORD(msnd_read_cfg(cfg, IREG_IO1_BASELO), -X msnd_read_cfg(cfg, IREG_IO1_BASEHI)); -X -X return 0; -} -X -static int msnd_write_cfg_irq(int cfg, int num, WORD irq) -{ -X if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) -X return -EIO; -X if (msnd_write_cfg(cfg, IREG_IRQ_NUMBER, LOBYTE(irq))) -X return -EIO; -X if (msnd_write_cfg(cfg, IREG_IRQ_TYPE, IRQTYPE_EDGE)) -X return -EIO; -X return 0; -} -X -static int msnd_read_cfg_irq(int cfg, int num, WORD *irq) -{ -X if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) -X return -EIO; -X -X *irq = msnd_read_cfg(cfg, IREG_IRQ_NUMBER); -X -X return 0; -} -X -static int msnd_write_cfg_mem(int cfg, int num, int mem) -{ -X WORD wmem; -X -X mem >>= 8; -X mem &= 0xfff; -X wmem = (WORD)mem; -X if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) -X return -EIO; -X if (msnd_write_cfg(cfg, IREG_MEMBASEHI, HIBYTE(wmem))) -X return -EIO; -X if (msnd_write_cfg(cfg, IREG_MEMBASELO, LOBYTE(wmem))) -X return -EIO; -X if (wmem && msnd_write_cfg(cfg, IREG_MEMCONTROL, (MEMTYPE_HIADDR | MEMTYPE_16BIT))) -X return -EIO; -X return 0; -} -X -static int msnd_read_cfg_mem(int cfg, int num, int *mem) -{ -X if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) -X return -EIO; -X -X *mem = MAKEWORD(msnd_read_cfg(cfg, IREG_MEMBASELO), -X msnd_read_cfg(cfg, IREG_MEMBASEHI)); -X *mem <<= 8; -X -X return 0; -} -X -static int msnd_activate_logical(int cfg, int num) -{ -X if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) -X return -EIO; -X if (msnd_write_cfg(cfg, IREG_ACTIVATE, LD_ACTIVATE)) -X return -EIO; -X return 0; -} -X -static int msnd_write_cfg_logical(int cfg, int num, WORD io0, WORD io1, WORD irq, int mem) -{ -X if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) -X return -EIO; -X if (msnd_write_cfg_io0(cfg, num, io0)) -X return -EIO; -X if (msnd_write_cfg_io1(cfg, num, io1)) -X return -EIO; -X if (msnd_write_cfg_irq(cfg, num, irq)) -X return -EIO; -X if (msnd_write_cfg_mem(cfg, num, mem)) -X return -EIO; -X if (msnd_activate_logical(cfg, num)) -X return -EIO; -X return 0; -} -X -static int msnd_read_cfg_logical(int cfg, int num, WORD *io0, WORD *io1, WORD *irq, int *mem) -{ -X if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) -X return -EIO; -X if (msnd_read_cfg_io0(cfg, num, io0)) -X return -EIO; -X if (msnd_read_cfg_io1(cfg, num, io1)) -X return -EIO; -X if (msnd_read_cfg_irq(cfg, num, irq)) -X return -EIO; -X if (msnd_read_cfg_mem(cfg, num, mem)) -X return -EIO; -X return 0; -} -X -static void usage(void) -{ -X fprintf(stderr, -X "\n" -X "pinnaclecfg 1.0\n" -X "\n" -X "usage: pinnaclecfg [device config]\n" -X "\n" -X "This is for use with the card in NON-PnP mode only.\n" -X "\n" -X "Available devices (not all available for Fiji):\n" -X "\n" -X " Device Description\n" -X " -------------------------------------------------------------------\n" -X " reset Reset all devices (i.e. disable)\n" -X " show Display current device configurations\n" -X "\n" -X " dsp Audio device\n" -X " mpu Internal Kurzweil synth\n" -X " ide On-board IDE controller\n" -X " joystick Joystick port\n" -X "\n"); -X exit(1); -} -X -static int cfg_reset(void) -{ -X int i; -X -X for (i = 0; i < 4; ++i) -X msnd_write_cfg_logical(config_port, i, 0, 0, 0, 0); -X -X return 0; -} -X -static int cfg_show(void) -{ -X int i; -X int count = 0; -X -X for (i = 0; i < 4; ++i) { -X WORD io0, io1, irq; -X int mem; -X msnd_read_cfg_logical(config_port, i, &io0, &io1, &irq, &mem); -X switch (i) { -X case 0: -X if (io0 || irq || mem) { -X printf("dsp 0x%x %d 0x%x\n", io0, irq, mem); -X ++count; -X } -X break; -X case 1: -X if (io0 || irq) { -X printf("mpu 0x%x %d\n", io0, irq); -X ++count; -X } -X break; -X case 2: -X if (io0 || io1 || irq) { -X printf("ide 0x%x 0x%x %d\n", io0, io1, irq); -X ++count; -X } -X break; -X case 3: -X if (io0) { -X printf("joystick 0x%x\n", io0); -X ++count; -X } -X break; -X } -X } -X -X if (count == 0) -X fprintf(stderr, "no devices configured\n"); -X -X return 0; -} -X -static int cfg_dsp(int argc, char *argv[]) -{ -X int io, irq, mem; -X -X if (argc < 3 || -X sscanf(argv[0], "0x%x", &io) != 1 || -X sscanf(argv[1], "%d", &irq) != 1 || -X sscanf(argv[2], "0x%x", &mem) != 1) -X usage(); -X -X if (!(io == 0x290 || -X io == 0x260 || -X io == 0x250 || -X io == 0x240 || -X io == 0x230 || -X io == 0x220 || -X io == 0x210 || -X io == 0x3e0)) { -X fprintf(stderr, "error: io must be one of " -X "210, 220, 230, 240, 250, 260, 290, or 3E0\n"); -X usage(); -X } -X -X if (!(irq == 5 || -X irq == 7 || -X irq == 9 || -X irq == 10 || -X irq == 11 || -X irq == 12)) { -X fprintf(stderr, "error: irq must be one of " -X "5, 7, 9, 10, 11 or 12\n"); -X usage(); -X } -X -X if (!(mem == 0xb0000 || -X mem == 0xc8000 || -X mem == 0xd0000 || -X mem == 0xd8000 || -X mem == 0xe0000 || -X mem == 0xe8000)) { -X fprintf(stderr, "error: mem must be one of " -X "0xb0000, 0xc8000, 0xd0000, 0xd8000, 0xe0000 or 0xe8000\n"); -X usage(); -X } -X -X return msnd_write_cfg_logical(config_port, 0, io, 0, irq, mem); -} -X -static int cfg_mpu(int argc, char *argv[]) -{ -X int io, irq; -X -X if (argc < 2 || -X sscanf(argv[0], "0x%x", &io) != 1 || -X sscanf(argv[1], "%d", &irq) != 1) -X usage(); -X -X return msnd_write_cfg_logical(config_port, 1, io, 0, irq, 0); -} -X -static int cfg_ide(int argc, char *argv[]) -{ -X int io0, io1, irq; -X -X if (argc < 3 || -X sscanf(argv[0], "0x%x", &io0) != 1 || -X sscanf(argv[0], "0x%x", &io1) != 1 || -X sscanf(argv[1], "%d", &irq) != 1) -X usage(); -X -X return msnd_write_cfg_logical(config_port, 2, io0, io1, irq, 0); -} -X -static int cfg_joystick(int argc, char *argv[]) -{ -X int io; -X -X if (argc < 1 || -X sscanf(argv[0], "0x%x", &io) != 1) -X usage(); -X -X return msnd_write_cfg_logical(config_port, 3, io, 0, 0, 0); -} -X -int main(int argc, char *argv[]) -{ -X char *device; -X int rv = 0; -X -X --argc; ++argv; -X -X if (argc < 2) -X usage(); -X -X sscanf(argv[0], "0x%x", &config_port); -X if (config_port != 0x250 && config_port != 0x260 && config_port != 0x270) { -X fprintf(stderr, "error: must be 0x250, 0x260 or 0x270\n"); -X exit(1); -X } -X if (ioperm(config_port, 2, 1)) { -X perror("ioperm"); -X fprintf(stderr, "note: pinnaclecfg must be run as root\n"); -X exit(1); -X } -X device = argv[1]; -X -X argc -= 2; argv += 2; -X -X if (strcmp(device, "reset") == 0) -X rv = cfg_reset(); -X else if (strcmp(device, "show") == 0) -X rv = cfg_show(); -X else if (strcmp(device, "dsp") == 0) -X rv = cfg_dsp(argc, argv); -X else if (strcmp(device, "mpu") == 0) -X rv = cfg_mpu(argc, argv); -X else if (strcmp(device, "ide") == 0) -X rv = cfg_ide(argc, argv); -X else if (strcmp(device, "joystick") == 0) -X rv = cfg_joystick(argc, argv); -X else { -X fprintf(stderr, "error: unknown device %s\n", device); -X usage(); -X } -X -X if (rv) -X fprintf(stderr, "error: device configuration failed\n"); -X -X return 0; -} -SHAR_EOF - $shar_touch -am 1204092598 'MultiSound.d/pinnaclecfg.c' && - chmod 0664 'MultiSound.d/pinnaclecfg.c' || - $echo 'restore of' 'MultiSound.d/pinnaclecfg.c' 'failed' - if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \ - && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then - md5sum -c << SHAR_EOF >/dev/null 2>&1 \ - || $echo 'MultiSound.d/pinnaclecfg.c:' 'MD5 check failed' -366bdf27f0db767a3c7921d0a6db20fe MultiSound.d/pinnaclecfg.c -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'MultiSound.d/pinnaclecfg.c'`" - test 10235 -eq "$shar_count" || - $echo 'MultiSound.d/pinnaclecfg.c:' 'original size' '10235,' 'current size' "$shar_count!" - fi -fi -# ============= MultiSound.d/Makefile ============== -if test -f 'MultiSound.d/Makefile' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'MultiSound.d/Makefile' '(file already exists)' -else - $echo 'x -' extracting 'MultiSound.d/Makefile' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'MultiSound.d/Makefile' && -CC = gcc -CFLAGS = -O -PROGS = setdigital msndreset pinnaclecfg conv -X -all: $(PROGS) -X -clean: -X rm -f $(PROGS) -SHAR_EOF - $shar_touch -am 1204092398 'MultiSound.d/Makefile' && - chmod 0664 'MultiSound.d/Makefile' || - $echo 'restore of' 'MultiSound.d/Makefile' 'failed' - if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \ - && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then - md5sum -c << SHAR_EOF >/dev/null 2>&1 \ - || $echo 'MultiSound.d/Makefile:' 'MD5 check failed' -76ca8bb44e3882edcf79c97df6c81845 MultiSound.d/Makefile -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'MultiSound.d/Makefile'`" - test 106 -eq "$shar_count" || - $echo 'MultiSound.d/Makefile:' 'original size' '106,' 'current size' "$shar_count!" - fi -fi -# ============= MultiSound.d/conv.l ============== -if test -f 'MultiSound.d/conv.l' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'MultiSound.d/conv.l' '(file already exists)' -else - $echo 'x -' extracting 'MultiSound.d/conv.l' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'MultiSound.d/conv.l' && -%% -[ \n\t,\r] -\;.* -DB -[0-9A-Fa-f]+H { int n; sscanf(yytext, "%xH", &n); printf("%c", n); } -%% -int yywrap() { return 1; } -main() { yylex(); } -SHAR_EOF - $shar_touch -am 0828231798 'MultiSound.d/conv.l' && - chmod 0664 'MultiSound.d/conv.l' || - $echo 'restore of' 'MultiSound.d/conv.l' 'failed' - if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \ - && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then - md5sum -c << SHAR_EOF >/dev/null 2>&1 \ - || $echo 'MultiSound.d/conv.l:' 'MD5 check failed' -d2411fc32cd71a00dcdc1f009e858dd2 MultiSound.d/conv.l -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'MultiSound.d/conv.l'`" - test 141 -eq "$shar_count" || - $echo 'MultiSound.d/conv.l:' 'original size' '141,' 'current size' "$shar_count!" - fi -fi -# ============= MultiSound.d/msndreset.c ============== -if test -f 'MultiSound.d/msndreset.c' && test "$first_param" != -c; then - $echo 'x -' SKIPPING 'MultiSound.d/msndreset.c' '(file already exists)' -else - $echo 'x -' extracting 'MultiSound.d/msndreset.c' '(text)' - sed 's/^X//' << 'SHAR_EOF' > 'MultiSound.d/msndreset.c' && -/********************************************************************* -X * -X * msndreset.c - resets the MultiSound card -X * -X * Copyright (C) 1998 Andrew Veliath -X * -X * This program is free software; you can redistribute it and/or modify -X * it under the terms of the GNU General Public License as published by -X * the Free Software Foundation; either version 2 of the License, or -X * (at your option) any later version. -X * -X * This program is distributed in the hope that it will be useful, -X * but WITHOUT ANY WARRANTY; without even the implied warranty of -X * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -X * GNU General Public License for more details. -X * -X * You should have received a copy of the GNU General Public License -X * along with this program; if not, write to the Free Software -X * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -X * -X ********************************************************************/ -X -#include -#include -#include -#include -#include -#include -#include -X -int main(int argc, char *argv[]) -{ -X int fd; -X -X if (argc != 2) { -X fprintf(stderr, "usage: msndreset \n"); -X exit(1); -X } -X -X if ((fd = open(argv[1], O_RDWR)) < 0) { -X perror(argv[1]); -X exit(1); -X } -X -X if (ioctl(fd, SOUND_MIXER_PRIVATE1, 0) < 0) { -X fprintf(stderr, "error: msnd ioctl reset failed\n"); -X perror("ioctl"); -X close(fd); -X exit(1); -X } -X -X close(fd); -X -X return 0; -} -SHAR_EOF - $shar_touch -am 1204100698 'MultiSound.d/msndreset.c' && - chmod 0664 'MultiSound.d/msndreset.c' || - $echo 'restore of' 'MultiSound.d/msndreset.c' 'failed' - if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \ - && ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then - md5sum -c << SHAR_EOF >/dev/null 2>&1 \ - || $echo 'MultiSound.d/msndreset.c:' 'MD5 check failed' -c52f876521084e8eb25e12e01dcccb8a MultiSound.d/msndreset.c -SHAR_EOF - else - shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'MultiSound.d/msndreset.c'`" - test 1472 -eq "$shar_count" || - $echo 'MultiSound.d/msndreset.c:' 'original size' '1472,' 'current size' "$shar_count!" - fi -fi -rm -fr _sh01426 -exit 0 diff --git a/Documentation/sound/oss/OPL3 b/Documentation/sound/oss/OPL3 deleted file mode 100644 index 2468ff827688..000000000000 --- a/Documentation/sound/oss/OPL3 +++ /dev/null @@ -1,6 +0,0 @@ -A pure OPL3 card is nice and easy to configure. Simply do - -insmod opl3 io=0x388 - -Change the I/O address in the very unlikely case this card is differently -configured diff --git a/Documentation/sound/oss/Opti b/Documentation/sound/oss/Opti deleted file mode 100644 index 4cd5d9ab3580..000000000000 --- a/Documentation/sound/oss/Opti +++ /dev/null @@ -1,218 +0,0 @@ -Support for the OPTi 82C931 chip --------------------------------- -Note: parts of this README file apply also to other -cards that use the mad16 driver. - -Some items in this README file are based on features -added to the sound driver after Linux-2.1.91 was out. -By the time of writing this I do not know which official -kernel release will include these features. -Please do not report inconsistencies on older Linux -kernels. - -The OPTi 82C931 is supported in its non-PnP mode. -Usually you do not need to set jumpers, etc. The sound driver -will check the card status and if it is required it will -force the card into a mode in which it can be programmed. - -If you have another OS installed on your computer it is recommended -that Linux and the other OS use the same resources. - -Also, it is recommended that resources specified in /etc/modprobe.d/*.conf -and resources specified in /etc/isapnp.conf agree. - -Compiling the sound driver --------------------------- -I highly recommend that you build a modularized sound driver. -This document does not cover a sound-driver which is built in -the kernel. - -Sound card support should be enabled as a module (chose m). -Answer 'm' for these items: - Generic OPL2/OPL3 FM synthesizer support (CONFIG_SOUND_ADLIB) - Microsoft Sound System support (CONFIG_SOUND_MSS) - Support for OPTi MAD16 and/or Mozart based cards (CONFIG_SOUND_MAD16) - FM synthesizer (YM3812/OPL-3) support (CONFIG_SOUND_YM3812) - -The configuration menu may ask for addresses, IRQ lines or DMA -channels. If the card is used as a module the module loading -options will override these values. - -For the OPTi 931 you can answer 'n' to: - Support MIDI in older MAD16 based cards (requires SB) (CONFIG_SOUND_MAD16_OLDCARD) -If you do need MIDI support in a Mozart or C928 based card you -need to answer 'm' to the above question. In that case you will -also need to answer 'm' to: - '100% Sound Blaster compatibles (SB16/32/64, ESS, Jazz16) support' (CONFIG_SOUND_SB) - -Go on and compile your kernel and modules. Install the modules. Run depmod -a. - -Using isapnptools ------------------ -In most systems with a PnP BIOS you do not need to use isapnp. The -initialization provided by the BIOS is sufficient for the driver -to pick up the card and continue initialization. - -If that fails, or if you have other PnP cards, you need to use isapnp -to initialize the card. -This was tested with isapnptools-1.11 but I recommend that you use -isapnptools-1.13 (or newer). Run pnpdump to dump the information -about your PnP cards. Then edit the resulting file and select -the options of your choice. This file is normally installed as -/etc/isapnp.conf. - -The driver has one limitation with respect to I/O port resources: -IO3 base must be 0x0E0C. Although isapnp allows other ports, this -address is hard-coded into the driver. - -Using kmod and autoloading the sound driver -------------------------------------------- -Config files in '/etc/modprobe.d/' are used as below: - -alias mixer0 mad16 -alias audio0 mad16 -alias midi0 mad16 -alias synth0 opl3 -options sb mad16=1 -options mad16 irq=10 dma=0 dma16=1 io=0x530 joystick=1 cdtype=0 -options opl3 io=0x388 -install mad16 /sbin/modprobe -i mad16 && /sbin/ad1848_mixer_reroute 14 8 15 3 16 6 - -If you have an MPU daughtercard or onboard MPU you will want to add to the -"options mad16" line - eg - -options mad16 irq=5 dma=0 dma16=3 io=0x530 mpu_io=0x330 mpu_irq=9 - -To set the I/O and IRQ of the MPU. - - -Explain: - -alias mixer0 mad16 -alias audio0 mad16 -alias midi0 mad16 -alias synth0 opl3 - -When any sound device is opened the kernel requests auto-loading -of char-major-14. There is a built-in alias that translates this -request to loading the main sound module. - -The sound module in its turn will request loading of a sub-driver -for mixer, audio, midi or synthesizer device. The first 3 are -supported by the mad16 driver. The synth device is supported -by the opl3 driver. - -There is currently no way to autoload the sound device driver -if more than one card is installed. - -options sb mad16=1 - -This is left for historical reasons. If you enable the -config option 'Support MIDI in older MAD16 based cards (requires SB)' -or if you use an older mad16 driver it will force loading of the -SoundBlaster driver. This option tells the SB driver not to look -for a SB card but to wait for the mad16 driver. - -options mad16 irq=10 dma=0 dma16=1 io=0x530 joystick=1 cdtype=0 -options opl3 io=0x388 - -post-install mad16 /sbin/ad1848_mixer_reroute 14 8 15 3 16 6 - -This sets resources and options for the mad16 and opl3 drivers. -I use two DMA channels (only one is required) to enable full duplex. -joystick=1 enables the joystick port. cdtype=0 disables the cd port. -You can also set mpu_io and mpu_irq in the mad16 options for the -uart401 driver. - -This tells modprobe to run /sbin/ad1848_mixer_reroute after -mad16 is successfully loaded and initialized. The source -for ad1848_mixer_reroute is appended to the end of this readme -file. It is impossible for the sound driver to know the actual -connections to the mixer. The 3 inputs intended for cd, synth -and line-in are mapped to the generic inputs line1, line2 and -line3. This program reroutes these mixer channels to their -right names (note the right mapping depends on the actual sound -card that you use). -The numeric parameters mean: - 14=line1 8=cd - reroute line1 to the CD input. - 15=line2 3=synth - reroute line2 to the synthesizer input. - 16=line3 6=line - reroute line3 to the line input. -For reference on other input names look at the file -/usr/include/linux/soundcard.h. - -Using a joystick ------------------ -You must enable a joystick in the mad16 options. (also -in /etc/isapnp.conf if you use it). -Tested with regular analog joysticks. - -A CDROM drive connected to the sound card ------------------------------------------ -The 82C931 chip has support only for secondary ATAPI cdrom. -(cdtype=8). Loading the mad16 driver resets the C931 chip -and if a cdrom was already mounted it may cause a complete -system hang. Do not use the sound card if you have an alternative. -If you do use the sound card it is important that you load -the mad16 driver (use "modprobe mad16" to prevent auto-unloading) -before the cdrom is accessed the first time. - -Using the sound driver built-in to the kernel may help here, but... -Most new systems have a PnP BIOS and also two IDE controllers. -The IDE controller on the sound card may be needed only on older -systems (which have only one IDE controller) but these systems -also do not have a PnP BIOS - requiring isapnptools and a modularized -driver. - -Known problems --------------- -1. See the section on "A CDROM drive connected to the sound card". - -2. On my system the codec cannot capture companded sound samples. - (eg., recording from /dev/audio). When any companded capture is - requested I get stereo-16 bit samples instead. Playback of - companded samples works well. Apparently this problem is not common - to all C931 based cards. I do not know how to identify cards that - have this problem. - -Source for ad1848_mixer_reroute.c ---------------------------------- -#include -#include -#include - -static char *mixer_names[SOUND_MIXER_NRDEVICES] = - SOUND_DEVICE_LABELS; - -int -main(int argc, char **argv) { - int val, from, to; - int i, fd; - - fd = open("/dev/mixer", O_RDWR); - if(fd < 0) { - perror("/dev/mixer"); - return 1; - } - - for(i = 2; i < argc; i += 2) { - from = atoi(argv[i-1]); - to = atoi(argv[i]); - - if(to == SOUND_MIXER_NONE) - fprintf(stderr, "%s: turning off mixer %s\n", - argv[0], mixer_names[to]); - else - fprintf(stderr, "%s: rerouting mixer %s to %s\n", - argv[0], mixer_names[from], mixer_names[to]); - - val = from << 8 | to; - - if(ioctl(fd, SOUND_MIXER_PRIVATE2, &val)) { - perror("AD1848 mixer reroute"); - return 1; - } - } - - return 0; -} - diff --git a/Documentation/sound/oss/PAS16 b/Documentation/sound/oss/PAS16 deleted file mode 100644 index 5c27229eec8c..000000000000 --- a/Documentation/sound/oss/PAS16 +++ /dev/null @@ -1,162 +0,0 @@ -Pro Audio Spectrum 16 for 2.3.99 and later -========================================= -by Thomas Molina (tmolina@home.com) -last modified 3 Mar 2001 -Acknowledgement to Axel Boldt (boldt@math.ucsb.edu) for stuff taken -from Configure.help, Riccardo Facchetti for stuff from README.OSS, -and others whose names I could not find. - -This documentation is relevant for the PAS16 driver (pas2_card.c and -friends) under kernel version 2.3.99 and later. If you are -unfamiliar with configuring sound under Linux, please read the -Sound-HOWTO, Documentation/sound/oss/Introduction and other -relevant docs first. - -The following information is relevant information from README.OSS -and legacy docs for the Pro Audio Spectrum 16 (PAS16): -================================================================== - -The pas2_card.c driver supports the following cards -- -Pro Audio Spectrum 16 (PAS16) and compatibles: - Pro Audio Spectrum 16 - Pro Audio Studio 16 - Logitech Sound Man 16 - NOTE! The original Pro Audio Spectrum as well as the PAS+ are not - and will not be supported by the driver. - -The sound driver configuration dialog -------------------------------------- - -Sound configuration starts by making some yes/no questions. Be careful -when answering to these questions since answering y to a question may -prevent some later ones from being asked. For example don't answer y to -the question about (PAS16) if you don't really have a PAS16. Sound -configuration may also be made modular by answering m to configuration -options presented. - -Note also that all questions may not be asked. The configuration program -may disable some questions depending on the earlier choices. It may also -select some options automatically as well. - - "ProAudioSpectrum 16 support", - - Answer 'y'_ONLY_ if you have a Pro Audio Spectrum _16_, - Pro Audio Studio 16 or Logitech SoundMan 16 (be sure that - you read the above list correctly). Don't answer 'y' if you - have some other card made by Media Vision or Logitech since they - are not PAS16 compatible. - NOTE! Since 3.5-beta10 you need to enable SB support (next question) - if you want to use the SB emulation of PAS16. It's also possible to - the emulation if you want to use a true SB card together with PAS16 - (there is another question about this that is asked later). - - "Generic OPL2/OPL3 FM synthesizer support", - - Answer 'y' if your card has a FM chip made by Yamaha (OPL2/OPL3/OPL4). - The PAS16 has an OPL3-compatible FM chip. - -With PAS16 you can use two audio device files at the same time. /dev/dsp (and -/dev/audio) is connected to the 8/16 bit native codec and the /dev/dsp1 (and -/dev/audio1) is connected to the SB emulation (8 bit mono only). - - -The new stuff for 2.3.99 and later -============================================================================ -The following configuration options are relevant to configuring the PAS16: - -Sound card support -CONFIG_SOUND - If you have a sound card in your computer, i.e. if it can say more - than an occasional beep, say Y. Be sure to have all the information - about your sound card and its configuration down (I/O port, - interrupt and DMA channel), because you will be asked for it. - - You want to read the Sound-HOWTO, available from - http://www.tldp.org/docs.html#howto . General information - about the modular sound system is contained in the files - Documentation/sound/oss/Introduction. The file - Documentation/sound/oss/README.OSS contains some slightly outdated but - still useful information as well. - -OSS sound modules -CONFIG_SOUND_OSS - OSS is the Open Sound System suite of sound card drivers. They make - sound programming easier since they provide a common API. Say Y or M - here (the module will be called sound.o) if you haven't found a - driver for your sound card above, then pick your driver from the - list below. - -Persistent DMA buffers -CONFIG_SOUND_DMAP - Linux can often have problems allocating DMA buffers for ISA sound - cards on machines with more than 16MB of RAM. This is because ISA - DMA buffers must exist below the 16MB boundary and it is quite - possible that a large enough free block in this region cannot be - found after the machine has been running for a while. If you say Y - here the DMA buffers (64Kb) will be allocated at boot time and kept - until the shutdown. This option is only useful if you said Y to - "OSS sound modules", above. If you said M to "OSS sound modules" - then you can get the persistent DMA buffer functionality by passing - the command-line argument "dmabuf=1" to the sound.o module. - - Say y here for PAS16. - -ProAudioSpectrum 16 support -CONFIG_SOUND_PAS - Answer Y only if you have a Pro Audio Spectrum 16, ProAudio Studio - 16 or Logitech SoundMan 16 sound card. Don't answer Y if you have - some other card made by Media Vision or Logitech since they are not - PAS16 compatible. It is not necessary to enable the separate - Sound Blaster support; it is included in the PAS driver. - - If you compile the driver into the kernel, you have to add - "pas2=,,,,,,, - to the kernel command line. - -FM Synthesizer (YM3812/OPL-3) support -CONFIG_SOUND_YM3812 - Answer Y if your card has a FM chip made by Yamaha (OPL2/OPL3/OPL4). - Answering Y is usually a safe and recommended choice, however some - cards may have software (TSR) FM emulation. Enabling FM support with - these cards may cause trouble (I don't currently know of any such - cards, however). - Please read the file Documentation/sound/oss/OPL3 if your card has an - OPL3 chip. - If you compile the driver into the kernel, you have to add - "opl3=" to the kernel command line. - - If you compile your drivers into the kernel, you MUST configure - OPL3 support as a module for PAS16 support to work properly. - You can then get OPL3 functionality by issuing the command: - insmod opl3 - In addition, you must either add the following line to - /etc/modprobe.d/*.conf: - options opl3 io=0x388 - or else add the following line to /etc/lilo.conf: - opl3=0x388 - - -EXAMPLES -=================================================================== -To use the PAS16 in my computer I have enabled the following sound -configuration options: - -CONFIG_SOUND=y -CONFIG_SOUND_OSS=y -CONFIG_SOUND_TRACEINIT=y -CONFIG_SOUND_DMAP=y -CONFIG_SOUND_PAS=y -CONFIG_SOUND_SB=n -CONFIG_SOUND_YM3812=m - -I have also included the following append line in /etc/lilo.conf: -append="pas2=0x388,10,3,-1,0x220,5,1,-1 sb=0x220,5,1,-1 opl3=0x388" - -The io address of 0x388 is default configuration on the PAS16. The -irq of 10 and dma of 3 may not match your installation. The above -configuration enables PAS16, 8-bit Soundblaster and OPL3 -functionality. If Soundblaster functionality is not desired, the -following line would be appropriate: -append="pas2=0x388,10,3,-1,0,-1,-1,-1 opl3=0x388" - -If sound is built totally modular, the above options may be -specified in /etc/modprobe.d/*.conf for pas2, sb and opl3 -respectively. diff --git a/Documentation/sound/oss/PSS b/Documentation/sound/oss/PSS deleted file mode 100644 index 187b9525e1f6..000000000000 --- a/Documentation/sound/oss/PSS +++ /dev/null @@ -1,41 +0,0 @@ -The PSS cards and other ECHO based cards provide an onboard DSP with -downloadable programs and also has an AD1848 "Microsoft Sound System" -device. The PSS driver enables MSS and MPU401 modes of the card. SB -is not enabled since it doesn't work concurrently with MSS. - -If you build this driver as a module then the driver takes the following -parameters - -pss_io. The I/O base the PSS card is configured at (normally 0x220 - or 0x240) - -mss_io The base address of the Microsoft Sound System interface. - This is normally 0x530, but may be 0x604 or other addresses. - -mss_irq The interrupt assigned to the Microsoft Sound System - emulation. IRQ's 3,5,7,9,10,11 and 12 are available. If you - get IRQ errors be sure to check the interrupt is set to - "ISA/Legacy" in the BIOS on modern machines. - -mss_dma The DMA channel used by the Microsoft Sound System. - This can be 0, 1, or 3. DMA 0 is not available on older - machines and will cause a crash on them. - -mpu_io The MPU emulation base address. This sets the base of the - synthesizer. It is typically 0x330 but can be altered. - -mpu_irq The interrupt to use for the synthesizer. It must differ - from the IRQ used by the Microsoft Sound System port. - - -The mpu_io/mpu_irq fields are optional. If they are not specified the -synthesizer parts are not configured. - -When the module is loaded it looks for a file called -/etc/sound/pss_synth. This is the firmware file from the DOS install disks. -This fil holds a general MIDI emulation. The file expected is called -genmidi.ld on newer DOS driver install disks and synth.ld on older ones. - -You can also load alternative DSP algorithms into the card if you wish. One -alternative driver can be found at http://www.mpg123.de/ - diff --git a/Documentation/sound/oss/PSS-updates b/Documentation/sound/oss/PSS-updates deleted file mode 100644 index 11914a1dc7e7..000000000000 --- a/Documentation/sound/oss/PSS-updates +++ /dev/null @@ -1,88 +0,0 @@ - This file contains notes for users of PSS sound cards who wish to use the -newly added features of the newest version of this driver. - - The major enhancements present in this new revision of this driver is the -addition of two new module parameters that allow you to take full advantage of -all the features present on your PSS sound card. These features include the -ability to enable both the builtin CDROM and joystick ports. - -pss_enable_joystick - - This parameter is basically a flag. A 0 will leave the joystick port -disabled, while a non-zero value would enable the joystick port. The default -setting is pss_enable_joystick=0 as this keeps this driver fully compatible -with systems that were using previous versions of this driver. If you wish to -enable the joystick port you will have to add pss_enable_joystick=1 as an -argument to the driver. To actually use the joystick port you will then have -to load the joystick driver itself. Just remember to load the joystick driver -AFTER the pss sound driver. - -pss_cdrom_port - - This parameter takes a port address as its parameter. Any available port -address can be specified to enable the CDROM port, except for 0x0 and -1 as -these values would leave the port disabled. Like the joystick port, the cdrom -port will require that an appropriate CDROM driver be loaded before you can make -use of the newly enabled CDROM port. Like the joystick port option above, -remember to load the CDROM driver AFTER the pss sound driver. While it may -differ on some PSS sound cards, all the PSS sound cards that I have seen have a -builtin Wearnes CDROM port. If this is the case with your PSS sound card you -should load aztcd with the appropriate port option that matches the port you -assigned to the CDROM port when you loaded your pss sound driver. (ex. -modprobe pss pss_cdrom_port=0x340 && modprobe aztcd aztcd=0x340) The default -setting of this parameter leaves the CDROM port disabled to maintain full -compatibility with systems using previous versions of this driver. - - Other options have also been added for the added convenience and utility -of the user. These options are only available if this driver is loaded as a -module. - -pss_no_sound - - This module parameter is a flag that can be used to tell the driver to -just configure non-sound components. 0 configures all components, a non-0 -value will only attempt to configure the CDROM and joystick ports. This -parameter can be used by a user who only wished to use the builtin joystick -and/or CDROM port(s) of his PSS sound card. If this driver is loaded with this -parameter and with the parameter below set to true then a user can safely unload -this driver with the following command "rmmod pss && rmmod ad1848 && rmmod -mpu401 && rmmod sound && rmmod soundcore" and retain the full functionality of -his CDROM and/or joystick port(s) while gaining back the memory previously used -by the sound drivers. This default setting of this parameter is 0 to retain -full behavioral compatibility with previous versions of this driver. - -pss_keep_settings - - This parameter can be used to specify whether you want the driver to reset -all emulations whenever its unloaded. This can be useful for those who are -sharing resources (io ports, IRQ's, DMA's) between different ISA cards. This -flag can also be useful in that future versions of this driver may reset all -emulations by default on the driver's unloading (as it probably should), so -specifying it now will ensure that all future versions of this driver will -continue to work as expected. The default value of this parameter is 1 to -retain full behavioral compatibility with previous versions of this driver. - -pss_firmware - - This parameter can be used to specify the file containing the firmware -code so that a user could tell the driver where that file is located instead -of having to put it in a predefined location with a predefined name. The -default setting of this parameter is "/etc/sound/pss_synth" as this was the -path and filename the hardcoded value in the previous versions of this driver. - -Examples: - -# Normal PSS sound card system, loading of drivers. -# Should be specified in an rc file (ex. Slackware uses /etc/rc.d/rc.modules). - -/sbin/modprobe pss pss_io=0x220 mpu_io=0x338 mpu_irq=9 mss_io=0x530 mss_irq=10 mss_dma=1 pss_cdrom_port=0x340 pss_enable_joystick=1 -/sbin/modprobe aztcd aztcd=0x340 -/sbin/modprobe joystick - -# System using the PSS sound card just for its CDROM and joystick ports. -# Should be specified in an rc file (ex. Slackware uses /etc/rc.d/rc.modules). - -/sbin/modprobe pss pss_io=0x220 pss_cdrom_port=0x340 pss_enable_joystick=1 pss_no_sound=1 -/sbin/rmmod pss && /sbin/rmmod ad1848 && /sbin/rmmod mpu401 && /sbin/rmmod sound && /sbin/rmmod soundcore # This line not needed, but saves memory. -/sbin/modprobe aztcd aztcd=0x340 -/sbin/modprobe joystick diff --git a/Documentation/sound/oss/README.OSS b/Documentation/sound/oss/README.OSS deleted file mode 100644 index a085ea3611a1..000000000000 --- a/Documentation/sound/oss/README.OSS +++ /dev/null @@ -1,1455 +0,0 @@ -Introduction ------------- - -This file is a collection of all the old Readme files distributed with -OSS/Lite by Hannu Savolainen. Since the new Linux sound driver is founded -on it I think these information may still be interesting for users that -have to configure their sound system. - -Be warned: Alan Cox is the current maintainer of the Linux sound driver so if -you have problems with it, please contact him or the current device-specific -driver maintainer (e.g. for aedsp16 specific problems contact me). If you have -patches, contributions or suggestions send them to Alan: I'm sure they are -welcome. - -In this document you will find a lot of references about OSS/Lite or ossfree: -they are gone forever. Keeping this in mind and with a grain of salt this -document can be still interesting and very helpful. - -[ File edited 17.01.1999 - Riccardo Facchetti ] -[ Edited miroSOUND section 19.04.2001 - Robert Siemer ] - -OSS/Free version 3.8 release notes ----------------------------------- - -Please read the SOUND-HOWTO (available from sunsite.unc.edu and other Linux FTP -sites). It gives instructions about using sound with Linux. It's bit out of -date but still very useful. Information about bug fixes and such things -is available from the web page (see above). - -Please check http://www.opensound.com/pguide for more info about programming -with OSS API. - - ==================================================== -- THIS VERSION ____REQUIRES____ Linux 2.1.57 OR LATER. - ==================================================== - -Packages "snd-util-3.8.tar.gz" and "snd-data-0.1.tar.Z" -contain useful utilities to be used with this driver. -See http://www.opensound.com/ossfree/ for -download instructions. - -If you are looking for the installation instructions, please -look forward into this document. - -Supported sound cards ---------------------- - -See below. - -Contributors ------------- - -This driver contains code by several contributors. In addition several other -persons have given useful suggestions. The following is a list of major -contributors. (I could have forgotten some names.) - - Craig Metz 1/2 of the PAS16 Mixer and PCM support - Rob Hooft Volume computation algorithm for the FM synth. - Mika Liljeberg uLaw encoding and decoding routines - Jeff Tranter Linux SOUND HOWTO document - Greg Lee Volume computation algorithm for the GUS and - lots of valuable suggestions. - Andy Warner ISC port - Jim Lowe, - Amancio Hasty Jr FreeBSD/NetBSD port - Anders Baekgaard Bug hunting and valuable suggestions. - Joerg Schubert SB16 DSP support (initial version). - Andrew Robinson Improvements to the GUS driver - Megens SA MIDI recording for SB and SB Pro (initial version). - Mikael Nordqvist Linear volume support for GUS and - nonblocking /dev/sequencer. - Ian Hartas SVR4.2 port - Markus Aroharju and - Risto Kankkunen Major contributions to the mixer support - of GUS v3.7. - Hunyue Yau Mixer support for SG NX Pro. - Marc Hoffman PSS support (initial version). - Rainer Vranken Initialization for Jazz16 (initial version). - Peter Trattler Initial version of loadable module support for Linux. - JRA Gibson 16 bit mode for Jazz16 (initial version) - Davor Jadrijevic MAD16 support (initial version) - Gregor Hoffleit Mozart support (initial version) - Riccardo Facchetti Audio Excel DSP 16 (aedsp16) support - James Hightower Spotting a tiny but important bug in CS423x support. - Denis Sablic OPTi 82C924 specific enhancements (non PnP mode) - Tim MacKenzie Full duplex support for OPTi 82C930. - - Please look at lowlevel/README for more contributors. - -There are probably many other names missing. If you have sent me some -patches and your name is not in the above list, please inform me. - -Sending your contributions or patches -------------------------------------- - -First of all it's highly recommended to contact me before sending anything -or before even starting to do any work. Tell me what you suggest to be -changed or what you have planned to do. Also ensure you are using the -very latest (development) version of OSS/Free since the change may already be -implemented there. In general it's a major waste of time to try to improve a -several months old version. Information about the latest version can be found -from http://www.opensound.com/ossfree. In general there is no point in -sending me patches relative to production kernels. - -Sponsors etc. -------------- - -The following companies have greatly helped development of this driver -in form of a free copy of their product: - -Novell, Inc. UnixWare personal edition + SDK -The Santa Cruz Operation, Inc. A SCO OpenServer + SDK -Ensoniq Corp, a SoundScape card and extensive amount of assistance -MediaTrix Peripherals Inc, a AudioTrix Pro card + SDK -Acer, Inc. a pair of AcerMagic S23 cards. - -In addition the following companies have provided me sufficient amount -of technical information at least some of their products (free or $$$): - -Advanced Gravis Computer Technology Ltd. -Media Vision Inc. -Analog Devices Inc. -Logitech Inc. -Aztech Labs Inc. -Crystal Semiconductor Corporation, -Integrated Circuit Systems Inc. -OAK Technology -OPTi -Turtle Beach -miro -Ad Lib Inc. ($$) -Music Quest Inc. ($$) -Creative Labs ($$$) - -If you have some problems -========================= - -Read the sound HOWTO (sunsite.unc.edu:/pub/Linux/docs/...?). -Also look at the home page (http://www.opensound.com/ossfree). It may -contain info about some recent bug fixes. - -It's likely that you have some problems when trying to use the sound driver -first time. Sound cards don't have standard configuration so there are no -good default configuration to use. Please try to use same I/O, DMA and IRQ -values for the sound card than with DOS. - -If you get an error message when trying to use the driver, please look -at /var/adm/messages for more verbose error message. - - -The following errors are likely with /dev/dsp and /dev/audio. - - - "No such device or address". - This error indicates that there are no suitable hardware for the - device file or the sound driver has been compiled without support for - this particular device. For example /dev/audio and /dev/dsp will not - work if "digitized voice support" was not enabled during "make config". - - - "Device or resource busy". Probably the IRQ (or DMA) channel - required by the sound card is in use by some other device/driver. - - - "I/O error". Almost certainly (99%) it's an IRQ or DMA conflict. - Look at the kernel messages in /var/adm/notice for more info. - - - "Invalid argument". The application is calling ioctl() - with impossible parameters. Check that the application is - for sound driver version 2.X or later. - -Linux installation -================== - -IMPORTANT! Read this if you are installing a separately - distributed version of this driver. - - Check that your kernel version works with this - release of the driver (see Readme). Also verify - that your current kernel version doesn't have more - recent sound driver version than this one. IT'S HIGHLY - RECOMMENDED THAT YOU USE THE SOUND DRIVER VERSION THAT - IS DISTRIBUTED WITH KERNEL SOURCES. - -- When installing separately distributed sound driver you should first - read the above notice. Then try to find proper directory where and how - to install the driver sources. You should not try to install a separately - distributed driver version if you are not able to find the proper way - yourself (in this case use the version that is distributed with kernel - sources). Remove old version of linux/drivers/sound directory before - installing new files. - -- To build the device files you need to run the enclosed shell script - (see below). You need to do this only when installing sound driver - first time or when upgrading to much recent version than the earlier - one. - -- Configure and compile Linux as normally (remember to include the - sound support during "make config"). Please refer to kernel documentation - for instructions about configuring and compiling kernel. File Readme.cards - contains card specific instructions for configuring this driver for - use with various sound cards. - -Boot time configuration (using lilo and insmod) ------------------------------------------------ - -This information has been removed. Too many users didn't believe -that it's really not necessary to use this method. Please look at -Readme of sound driver version 3.0.1 if you still want to use this method. - -Problems --------- - -Common error messages: - -- /dev/???????: No such file or directory. -Run the script at the end of this file. - -- /dev/???????: No such device. -You are not running kernel which contains the sound driver. When using -modularized sound driver this error means that the sound driver is not -loaded. - -- /dev/????: No such device or address. -Sound driver didn't detect suitable card when initializing. Please look at -Readme.cards for info about configuring the driver with your card. Also -check for possible boot (insmod) time error messages in /var/adm/messages. - -- Other messages or problems -Please check http://www.opensound.com/ossfree for more info. - -Configuring version 3.8 (for Linux) with some common sound cards -================================================================ - -This document describes configuring sound cards with the freeware version of -Open Sound Systems (OSS/Free). Information about the commercial version -(OSS/Linux) and its configuration is available from -http://www.opensound.com/linux.html. Information presented here is -not valid for OSS/Linux. - -If you are unsure about how to configure OSS/Free -you can download the free evaluation version of OSS/Linux from the above -address. There is a chance that it can autodetect your sound card. In this case -you can use the information included in soundon.log when configuring OSS/Free. - - -IMPORTANT! This document covers only cards that were "known" when - this driver version was released. Please look at - http://www.opensound.com/ossfree for info about - cards introduced recently. - - When configuring the sound driver, you should carefully - check each sound configuration option (particularly - "Support for /dev/dsp and /dev/audio"). The default values - offered by these programs are not necessarily valid. - - -THE BIGGEST MISTAKES YOU CAN MAKE -================================= - -1. Assuming that the card is Sound Blaster compatible when it's not. --------------------------------------------------------------------- - -The number one mistake is to assume that your card is compatible with -Sound Blaster. Only the cards made by Creative Technology or which have -one or more chips labeled by Creative are SB compatible. In addition there -are few sound chipsets which are SB compatible in Linux such as ESS1688 or -Jazz16. Note that SB compatibility in DOS/Windows does _NOT_ mean anything -in Linux. - -IF YOU REALLY ARE 150% SURE YOU HAVE A SOUND BLASTER YOU CAN SKIP THE REST OF -THIS CHAPTER. - -For most other "supposed to be SB compatible" cards you have to use other -than SB drivers (see below). It is possible to get most sound cards to work -in SB mode but in general it's a complete waste of time. There are several -problems which you will encounter by using SB mode with cards that are not -truly SB compatible: - -- The SB emulation is at most SB Pro (DSP version 3.x) which means that -you get only 8 bit audio (there is always an another ("native") mode which -gives the 16 bit capability). The 8 bit only operation is the reason why -many users claim that sound quality in Linux is much worse than in DOS. -In addition some applications require 16 bit mode and they produce just -noise with a 8 bit only device. -- The card may work only in some cases but refuse to work most of the -time. The SB compatible mode always requires special initialization which is -done by the DOS/Windows drivers. This kind of cards work in Linux after -you have warm booted it after DOS but they don't work after cold boot -(power on or reset). -- You get the famous "DMA timed out" messages. Usually all SB clones have -software selectable IRQ and DMA settings. If the (power on default) values -currently used by the card don't match configuration of the driver you will -get the above error message whenever you try to record or play. There are -few other reasons to the DMA timeout message but using the SB mode seems -to be the most common cause. - -2. Trying to use a PnP (Plug & Play) card just like an ordinary sound card --------------------------------------------------------------------------- - -Plug & Play is a protocol defined by Intel and Microsoft. It lets operating -systems to easily identify and reconfigure I/O ports, IRQs and DMAs of ISA -cards. The problem with PnP cards is that the standard Linux doesn't currently -(versions 2.1.x and earlier) don't support PnP. This means that you will have -to use some special tricks (see later) to get a PnP card alive. Many PnP cards -work after they have been initialized but this is not always the case. - -There are sometimes both PnP and non-PnP versions of the same sound card. -The non-PnP version is the original model which usually has been discontinued -more than an year ago. The PnP version has the same name but with "PnP" -appended to it (sometimes not). This causes major confusion since the non-PnP -model works with Linux but the PnP one doesn't. - -You should carefully check if "Plug & Play" or "PnP" is mentioned in the name -of the card or in the documentation or package that came with the card. -Everything described in the rest of this document is not necessarily valid for -PnP models of sound cards even you have managed to wake up the card properly. -Many PnP cards are simply too different from their non-PnP ancestors which are -covered by this document. - - -Cards that are not (fully) supported by this driver -=================================================== - -See http://www.opensound.com/ossfree for information about sound cards -to be supported in future. - - -How to use sound without recompiling kernel and/or sound driver -=============================================================== - -There is a commercial sound driver which comes in precompiled form and doesn't -require recompiling of the kernel. See http://www.4Front-tech.com/oss.html for -more info. - - -Configuring PnP cards -===================== - -New versions of most sound cards use the so-called ISA PnP protocol for -soft configuring their I/O, IRQ, DMA and shared memory resources. -Currently at least cards made by Creative Technology (SB32 and SB32AWE -PnP), Gravis (GUS PnP and GUS PnP Pro), Ensoniq (Soundscape PnP) and -Aztech (some Sound Galaxy models) use PnP technology. The CS4232/4236 audio -chip by Crystal Semiconductor (Intel Atlantis, HP Pavilion and many other -motherboards) is also based on PnP technology but there is a "native" driver -available for it (see information about CS4232 later in this document). - -PnP sound cards (as well as most other PnP ISA cards) are not supported -by this version of the driver . Proper -support for them should be released during 97 once the kernel level -PnP support is available. - -There is a method to get most of the PnP cards to work. The basic method -is the following: - -1) Boot DOS so the card's DOS drivers have a chance to initialize it. -2) _Cold_ boot to Linux by using "loadlin.exe". Hitting ctrl-alt-del -works with older machines but causes a hard reset of all cards on recent -(Pentium) machines. -3) If you have the sound driver in Linux configured properly, the card should -work now. "Proper" means that I/O, IRQ and DMA settings are the same as in -DOS. The hard part is to find which settings were used. See the documentation of -your card for more info. - -Windows 95 could work as well as DOS but running loadlin may be difficult. -Probably you should "shut down" your machine to MS-DOS mode before running it. - -Some machines have a BIOS utility for setting PnP resources. This is a good -way to configure some cards. In this case you don't need to boot DOS/Win95 -before starting Linux. - -Another way to initialize PnP cards without DOS/Win95 is a Linux based -PnP isolation tool. When writing this there is a pre alpha test version -of such a tool available from ftp://ftp.demon.co.uk/pub/unix/linux/utils. The -file is called isapnptools-*. Please note that this tool is just a temporary -solution which may be incompatible with future kernel versions having proper -support for PnP cards. There are bugs in setting DMA channels in earlier -versions of isapnptools so at least version 1.6 is required with sound cards. - -Yet another way to use PnP cards is to use (commercial) OSS/Linux drivers. See -http://www.opensound.com/linux.html for more info. This is probably the way you -should do it if you don't want to spend time recompiling the kernel and -required tools. - - -Read this before trying to configure the driver -=============================================== - -There are currently many cards that work with this driver. Some of the cards -have native support while others work since they emulate some other -card (usually SB, MSS/WSS and/or MPU401). The following cards have native -support in the driver. Detailed instructions for configuring these cards -will be given later in this document. - -Pro Audio Spectrum 16 (PAS16) and compatibles: - Pro Audio Spectrum 16 - Pro Audio Studio 16 - Logitech Sound Man 16 - NOTE! The original Pro Audio Spectrum as well as the PAS+ are not - and will not be supported by the driver. - -Media Vision Jazz16 based cards - Pro Sonic 16 - Logitech SoundMan Wave - (Other Jazz based cards should work but I don't have any reports - about them). - -Sound Blasters - SB 1.0 to 2.0 - SB Pro - SB 16 - SB32/64/AWE - Configure SB32/64/AWE just like SB16. See lowlevel/README.awe - for information about using the wave table synth. - NOTE! AWE63/Gold and 16/32/AWE "PnP" cards need to be activated - using isapnptools before they work with OSS/Free. - SB16 compatible cards by other manufacturers than Creative. - You have been fooled since there are _no_ SB16 compatible - cards on the market (as of May 1997). It's likely that your card - is compatible just with SB Pro but there is also a non-SB- - compatible 16 bit mode. Usually it's MSS/WSS but it could also - be a proprietary one like MV Jazz16 or ESS ES688. OPTi - MAD16 chips are very common in so called "SB 16 bit cards" - (try with the MAD16 driver). - - ====================================================================== - "Supposed to be SB compatible" cards. - Forget the SB compatibility and check for other alternatives - first. The only cards that work with the SB driver in - Linux have been made by Creative Technology (there is at least - one chip on the card with "CREATIVE" printed on it). The - only other SB compatible chips are ESS and Jazz16 chips - (maybe ALSxxx chips too but they probably don't work). - Most other "16 bit SB compatible" cards such as "OPTi/MAD16" or - "Crystal" are _NOT_ SB compatible in Linux. - - Practically all sound cards have some kind of SB emulation mode - in addition to their native (16 bit) mode. In most cases this - (8 bit only) SB compatible mode doesn't work with Linux. If - you get it working it may cause problems with games and - applications which require 16 bit audio. Some 16 bit only - applications don't check if the card actually supports 16 bits. - They just dump 16 bit data to a 8 bit card which produces just - noise. - - In most cases the 16 bit native mode is supported by Linux. - Use the SB mode with "clones" only if you don't find anything - better from the rest of this doc. - ====================================================================== - -Gravis Ultrasound (GUS) - GUS - GUS + the 16 bit option - GUS MAX - GUS ACE (No MIDI port and audio recording) - GUS PnP (with RAM) - -MPU-401 and compatibles - The driver works both with the full (intelligent mode) MPU-401 - cards (such as MPU IPC-T and MQX-32M) and with the UART only - dumb MIDI ports. MPU-401 is currently the most common MIDI - interface. Most sound cards are compatible with it. However, - don't enable MPU401 mode blindly. Many cards with native support - in the driver have their own MPU401 driver. Enabling the standard one - will cause a conflict with these cards. So check if your card is - in the list of supported cards before enabling MPU401. - -Windows Sound System (MSS/WSS) - Even when Microsoft has discontinued their own Sound System card - they managed to make it a standard. MSS compatible cards are based on - a codec chip which is easily available from at least two manufacturers - (AD1848 by Analog Devices and CS4231/CS4248 by Crystal Semiconductor). - Currently most sound cards are based on one of the MSS compatible codec - chips. The CS4231 is used in the high quality cards such as GUS MAX, - MediaTrix AudioTrix Pro and TB Tropez (GUS MAX is not MSS compatible). - - Having a AD1848, CS4248 or CS4231 codec chip on the card is a good - sign. Even if the card is not MSS compatible, it could be easy to write - support for it. Note also that most MSS compatible cards - require special boot time initialization which may not be present - in the driver. Also, some MSS compatible cards have native support. - Enabling the MSS support with these cards is likely to - cause a conflict. So check if your card is listed in this file before - enabling the MSS support. - -Yamaha FM synthesizers (OPL2, OPL3 (not OPL3-SA) and OPL4) - Most sound cards have a FM synthesizer chip. The OPL2 is a 2 - operator chip used in the original AdLib card. Currently it's used - only in the cheapest (8 bit mono) cards. The OPL3 is a 4 operator - FM chip which provides better sound quality and/or more available - voices than the OPL2. The OPL4 is a new chip that has an OPL3 and - a wave table synthesizer packed onto the same chip. The driver supports - just the OPL3 mode directly. Most cards with an OPL4 (like - SM Wave and AudioTrix Pro) support the OPL4 mode using MPU401 - emulation. Writing a native OPL4 support is difficult - since Yamaha doesn't give information about their sample ROM chip. - - Enable the generic OPL2/OPL3 FM synthesizer support if your - card has a FM chip made by Yamaha. Don't enable it if your card - has a software (TRS) based FM emulator. - - ---------------------------------------------------------------- - NOTE! OPL3-SA is different chip than the ordinary OPL3. In addition - to the FM synth this chip has also digital audio (WSS) and - MIDI (MPU401) capabilities. Support for OPL3-SA is described below. - ---------------------------------------------------------------- - -Yamaha OPL3-SA1 - - Yamaha OPL3-SA1 (YMF701) is an audio controller chip used on some - (Intel) motherboards and on cheap sound cards. It should not be - confused with the original OPL3 chip (YMF278) which is entirely - different chip. OPL3-SA1 has support for MSS, MPU401 and SB Pro - (not used in OSS/Free) in addition to the OPL3 FM synth. - - There are also chips called OPL3-SA2, OPL3-SA3, ..., OPL3SA-N. They - are PnP chips and will not work with the OPL3-SA1 driver. You should - use the standard MSS, MPU401 and OPL3 options with these chips and to - activate the card using isapnptools. - -4Front Technologies SoftOSS - - SoftOSS is a software based wave table emulation which works with - any 16 bit stereo sound card. Due to its nature a fast CPU is - required (P133 is minimum). Although SoftOSS does _not_ use MMX - instructions it has proven out that recent processors (which appear - to have MMX) perform significantly better with SoftOSS than earlier - ones. For example a P166MMX beats a PPro200. SoftOSS should not be used - on 486 or 386 machines. - - The amount of CPU load caused by SoftOSS can be controlled by - selecting the CONFIG_SOFTOSS_RATE and CONFIG_SOFTOSS_VOICES - parameters properly (they will be prompted by make config). It's - recommended to set CONFIG_SOFTOSS_VOICES to 32. If you have a - P166MMX or faster (PPro200 is not faster) you can set - CONFIG_SOFTOSS_RATE to 44100 (kHz). However with slower systems it - recommended to use sampling rates around 22050 or even 16000 kHz. - Selecting too high values for these parameters may hang your - system when playing MIDI files with hight degree of polyphony - (number of concurrently playing notes). It's also possible to - decrease CONFIG_SOFTOSS_VOICES. This makes it possible to use - higher sampling rates. However using fewer voices decreases - playback quality more than decreasing the sampling rate. - - SoftOSS keeps the samples loaded on the system's RAM so much RAM is - required. SoftOSS should never be used on machines with less than 16 MB - of RAM since this is potentially dangerous (you may accidentally run out - of memory which probably crashes the machine). - - SoftOSS implements the wave table API originally designed for GUS. For - this reason all applications designed for GUS should work (at least - after minor modifications). For example gmod/xgmod and playmidi -g are - known to work. - - To work SoftOSS will require GUS compatible - patch files to be installed on the system (in /dos/ultrasnd/midi). You - can use the public domain MIDIA patchset available from several ftp - sites. - - ********************************************************************* - IMPORTANT NOTICE! The original patch set distributed with the Gravis - Ultrasound card is not in public domain (even though it's available from - some FTP sites). You should contact Voice Crystal (www.voicecrystal.com) - if you like to use these patches with SoftOSS included in OSS/Free. - ********************************************************************* - -PSS based cards (AD1848 + ADSP-2115 + Echo ESC614 ASIC) - Analog Devices and Echo Speech have together defined a sound card - architecture based on the above chips. The DSP chip is used - for emulation of SB Pro, FM and General MIDI/MT32. - - There are several cards based on this architecture. The most known - ones are Orchid SW32 and Cardinal DSP16. - - The driver supports downloading DSP algorithms to these cards. - - NOTE! You will have to use the "old" config script when configuring - PSS cards. - -MediaTrix AudioTrix Pro - The ATP card is built around a CS4231 codec and an OPL4 synthesizer - chips. The OPL4 mode is supported by a microcontroller running a - General MIDI emulator. There is also a SB 1.5 compatible playback mode. - -Ensoniq SoundScape and compatibles - Ensoniq has designed a sound card architecture based on the - OTTO synthesizer chip used in their professional MIDI synthesizers. - Several companies (including Ensoniq, Reveal and Spea) are selling - cards based on this architecture. - - NOTE! The SoundScape PnP is not supported by OSS/Free. Ensoniq VIVO and - VIVO90 cards are not compatible with Soundscapes so the Soundscape - driver will not work with them. You may want to use OSS/Linux with these - cards. - -OPTi MAD16 and Mozart based cards - The Mozart (OAK OTI-601), MAD16 (OPTi 82C928), MAD16 Pro (OPTi 82C929), - OPTi 82C924/82C925 (in _non_ PnP mode) and OPTi 82C930 interface - chips are used in many different sound cards, including some - cards by Reveal miro and Turtle Beach (Tropez). The purpose of these - chips is to connect other audio components to the PC bus. The - interface chip performs address decoding for the other chips. - NOTE! Tropez Plus is not MAD16 but CS4232 based. - NOTE! MAD16 PnP cards (82C924, 82C925, 82C931) are not MAD16 compatible - in the PnP mode. You will have to use them in MSS mode after having - initialized them using isapnptools or DOS. 82C931 probably requires - initialization using DOS/Windows (running isapnptools is not enough). - It's possible to use 82C931 with OSS/Free by jumpering it to non-PnP - mode (provided that the card has a jumper for this). In non-PnP mode - 82C931 is compatible with 82C930 and should work with the MAD16 driver - (without need to use isapnptools or DOS to initialize it). All OPTi - chips are supported by OSS/Linux (both in PnP and non-PnP modes). - -Audio Excel DSP16 - Support for this card was written by Riccardo Faccetti - (riccardo@cdc8g5.cdc.polimi.it). The AEDSP16 driver included in - the lowlevel/ directory. To use it you should enable the - "Additional low level drivers" option. - -Crystal CS4232 and CS4236 based cards such as AcerMagic S23, TB Tropez _Plus_ and - many PC motherboards (Compaq, HP, Intel, ...) - CS4232 is a PnP multimedia chip which contains a CS3231A codec, - SB and MPU401 emulations. There is support for OPL3 too. - Unfortunately the MPU401 mode doesn't work (I don't know how to - initialize it). CS4236 is an enhanced (compatible) version of CS4232. - NOTE! Don't ever try to use isapnptools with CS4232 since this will just - freeze your machine (due to chip bugs). If you have problems in getting - CS4232 working you could try initializing it with DOS (CS4232C.EXE) and - then booting Linux using loadlin. CS4232C.EXE loads a secret firmware - patch which is not documented by Crystal. - -Turtle Beach Maui and Tropez "classic" - This driver version supports sample, patch and program loading commands - described in the Maui/Tropez User's manual. - There is now full initialization support too. The audio side of - the Tropez is based on the MAD16 chip (see above). - NOTE! Tropez Plus is different card than Tropez "classic" and will not - work fully in Linux. You can get audio features working by configuring - the card as a CS4232 based card (above). - - -Jumpers and software configuration -================================== - -Some of the earliest sound cards were jumper configurable. You have to -configure the driver use I/O, IRQ and DMA settings -that match the jumpers. Just few 8 bit cards are fully jumper -configurable (SB 1.x/2.x, SB Pro and clones). -Some cards made by Aztech have an EEPROM which contains the -config info. These cards behave much like hardware jumpered cards. - -Most cards have jumper for the base I/O address but other parameters -are software configurable. Sometimes there are few other jumpers too. - -Latest cards are fully software configurable or they are PnP ISA -compatible. There are no jumpers on the board. - -The driver handles software configurable cards automatically. Just configure -the driver to use I/O, IRQ and DMA settings which are known to work. -You could usually use the same values than with DOS and/or Windows. -Using different settings is possible but not recommended since it may cause -some trouble (for example when warm booting from an OS to another or -when installing new hardware to the machine). - -Sound driver sets the soft configurable parameters of the card automatically -during boot. Usually you don't need to run any extra initialization -programs when booting Linux but there are some exceptions. See the -card-specific instructions below for more info. - -The drawback of software configuration is that the driver needs to know -how the card must be initialized. It cannot initialize unknown cards -even if they are otherwise compatible with some other cards (like SB, -MPU401 or Windows Sound System). - - -What if your card was not listed above? -======================================= - -The first thing to do is to look at the major IC chips on the card. -Many of the latest sound cards are based on some standard chips. If you -are lucky, all of them could be supported by the driver. The most common ones -are the OPTi MAD16, Mozart, SoundScape (Ensoniq) and the PSS architectures -listed above. Also look at the end of this file for list of unsupported -cards and the ones which could be supported later. - -The last resort is to send _exact_ name and model information of the card -to me together with a list of the major IC chips (manufactured, model) to -me. I could then try to check if your card looks like something familiar. - -There are many more cards in the world than listed above. The first thing to -do with these cards is to check if they emulate some other card or interface -such as SB, MSS and/or MPU401. In this case there is a chance to get the -card to work by booting DOS before starting Linux (boot DOS, hit ctrl-alt-del -and boot Linux without hard resetting the machine). In this method the -DOS based driver initializes the hardware to use known I/O, IRQ and DMA -settings. If sound driver is configured to use the same settings, everything -should work OK. - - -Configuring sound driver (with Linux) -===================================== - -The sound driver is currently distributed as part of the Linux kernel. The -files are in /usr/src/linux/drivers/sound/. - -**************************************************************************** -* ALWAYS USE THE SOUND DRIVER VERSION WHICH IS DISTRIBUTED WITH * -* THE KERNEL SOURCE PACKAGE YOU ARE USING. SOME ALPHA AND BETA TEST * -* VERSIONS CAN BE INSTALLED FROM A SEPARATELY DISTRIBUTED PACKAGE * -* BUT CHECK THAT THE PACKAGE IS NOT MUCH OLDER (OR NEWER) THAN THE * -* KERNEL YOU ARE USING. IT'S POSSIBLE THAT THE KERNEL/DRIVER * -* INTERFACE CHANGES BETWEEN KERNEL RELEASES WHICH MAY CAUSE SOME * -* INCOMPATIBILITY PROBLEMS. * -* * -* IN CASE YOU INSTALL A SEPARATELY DISTRIBUTED SOUND DRIVER VERSION, * -* BE SURE TO REMOVE OR RENAME THE OLD SOUND DRIVER DIRECTORY BEFORE * -* INSTALLING THE NEW ONE. LEAVING OLD FILES TO THE SOUND DRIVER * -* DIRECTORY _WILL_ CAUSE PROBLEMS WHEN THE DRIVER IS USED OR * -* COMPILED. * -**************************************************************************** - -To configure the driver, run "make config" in the kernel source directory -(/usr/src/linux). Answer "y" or "m" to the question about Sound card support -(after the questions about mouse, CD-ROM, ftape, etc. support). Questions -about options for sound will then be asked. - -After configuring the kernel and sound driver and compile the kernel -following instructions in the kernel README. - -The sound driver configuration dialog -------------------------------------- - -Sound configuration starts by making some yes/no questions. Be careful -when answering to these questions since answering y to a question may -prevent some later ones from being asked. For example don't answer y to -the first question (PAS16) if you don't really have a PAS16. Don't enable -more cards than you really need since they just consume memory. Also -some drivers (like MPU401) may conflict with your SCSI controller and -prevent kernel from booting. If you card was in the list of supported -cards (above), please look at the card specific config instructions -(later in this file) before starting to configure. Some cards must be -configured in way which is not obvious. - -So here is the beginning of the config dialog. Answer 'y' or 'n' to these -questions. The default answer is shown so that (y/n) means 'y' by default and -(n/y) means 'n'. To use the default value, just hit ENTER. But be careful -since using the default _doesn't_ guarantee anything. - -Note also that all questions may not be asked. The configuration program -may disable some questions depending on the earlier choices. It may also -select some options automatically as well. - - "ProAudioSpectrum 16 support", - - Answer 'y'_ONLY_ if you have a Pro Audio Spectrum _16_, - Pro Audio Studio 16 or Logitech SoundMan 16 (be sure that - you read the above list correctly). Don't answer 'y' if you - have some other card made by Media Vision or Logitech since they - are not PAS16 compatible. - NOTE! Since 3.5-beta10 you need to enable SB support (next question) - if you want to use the SB emulation of PAS16. It's also possible to - the emulation if you want to use a true SB card together with PAS16 - (there is another question about this that is asked later). - "Sound Blaster support", - - Answer 'y' if you have an original SB card made by Creative Labs - or a full 100% hardware compatible clone (like Thunderboard or - SM Games). If your card was in the list of supported cards (above), - please look at the card specific instructions later in this file - before answering this question. For an unknown card you may answer - 'y' if the card claims to be SB compatible. - Enable this option also with PAS16 (changed since v3.5-beta9). - - Don't enable SB if you have a MAD16 or Mozart compatible card. - - "Generic OPL2/OPL3 FM synthesizer support", - - Answer 'y' if your card has a FM chip made by Yamaha (OPL2/OPL3/OPL4). - Answering 'y' is usually a safe and recommended choice. However some - cards may have software (TSR) FM emulation. Enabling FM support - with these cards may cause trouble. However I don't currently know - such cards. - "Gravis Ultrasound support", - - Answer 'y' if you have GUS or GUS MAX. Answer 'n' if you don't - have GUS since the GUS driver consumes much memory. - Currently I don't have experiences with the GUS ACE so I don't - know what to answer with it. - "MPU-401 support (NOT for SB16)", - - Be careful with this question. The MPU401 interface is supported - by almost any sound card today. However some natively supported cards - have their own driver for MPU401. Enabling the MPU401 option with - these cards will cause a conflict. Also enabling MPU401 on a system - that doesn't really have a MPU401 could cause some trouble. If your - card was in the list of supported cards (above), please look at - the card specific instructions later in this file. - - In MOST cases this MPU401 driver should only be used with "true" - MIDI-only MPU401 professional cards. In most other cases there - is another way to get the MPU401 compatible interface of a - sound card to work. - Support for the MPU401 compatible MIDI port of SB16, ESS1688 - and MV Jazz16 cards is included in the SB driver. Use it instead - of this separate MPU401 driver with these cards. As well - Soundscape, PSS and Maui drivers include their own MPU401 - options. - - It's safe to answer 'y' if you have a true MPU401 MIDI interface - card. - "6850 UART Midi support", - - It's safe to answer 'n' to this question in all cases. The 6850 - UART interface is so rarely used. - "PSS (ECHO-ADI2111) support", - - Answer 'y' only if you have Orchid SW32, Cardinal DSP16 or some - other card based on the PSS chipset (AD1848 codec + ADSP-2115 - DSP chip + Echo ESC614 ASIC CHIP). - "16 bit sampling option of GUS (_NOT_ GUS MAX)", - - Answer 'y' if you have installed the 16 bit sampling daughtercard - to your GUS. Answer 'n' if you have GUS MAX. Enabling this option - disables GUS MAX support. - "GUS MAX support", - - Answer 'y' only if you have a GUS MAX. - "Microsoft Sound System support", - - Again think carefully before answering 'y' to this question. It's - safe to answer 'y' in case you have the original Windows Sound - System card made by Microsoft or Aztech SG 16 Pro (or NX16 Pro). - Also you may answer 'y' in case your card was not listed earlier - in this file. For cards having native support in the driver, consult - the card specific instructions later in this file. Some drivers - have their own MSS support and enabling this option will cause a - conflict. - Note! The MSS driver permits configuring two DMA channels. This is a - "nonstandard" feature and works only with very few cards (if any). - In most cases the second DMA channel should be disabled or set to - the same channel than the first one. Trying to configure two separate - channels with cards that don't support this feature will prevent - audio (at least recording) from working. - "Ensoniq Soundscape support", - - Answer 'y' if you have a sound card based on the Ensoniq SoundScape - chipset. Such cards are being manufactured at least by Ensoniq, - Spea and Reveal (note that Reveal makes other cards also). The oldest - cards made by Spea don't work properly with Linux. - Soundscape PnP as well as Ensoniq VIVO work only with the commercial - OSS/Linux version. - "MediaTrix AudioTrix Pro support", - - Answer 'y' if you have the AudioTrix Pro. - "Support for MAD16 and/or Mozart based cards", - - Answer y if your card has a Mozart (OAK OTI-601) or MAD16 - (OPTi 82C928, 82C929, 82C924/82C925 or 82C930) audio interface chip. - These chips are - currently quite common so it's possible that many no-name cards - have one of them. In addition the MAD16 chip is used in some - cards made by known manufacturers such as Turtle Beach (Tropez), - Reveal (some models) and Diamond (some recent models). - Note OPTi 82C924 and 82C925 are MAD16 compatible only in non PnP - mode (jumper selectable on many cards). - "Support for TB Maui" - - This enables TB Maui specific initialization. Works with TB Maui - and TB Tropez (may not work with Tropez Plus). - - -Then the configuration program asks some y/n questions about the higher -level services. It's recommended to answer 'y' to each of these questions. -Answer 'n' only if you know you will not need the option. - - "MIDI interface support", - - Answering 'n' disables /dev/midi## devices and access to any - MIDI ports using /dev/sequencer and /dev/music. This option - also affects any MPU401 and/or General MIDI compatible devices. - "FM synthesizer (YM3812/OPL-3) support", - - Answer 'y' here. - "/dev/sequencer support", - - Answering 'n' disables /dev/sequencer and /dev/music. - -Entering the I/O, IRQ and DMA config parameters ------------------------------------------------ - -After the above questions the configuration program prompts for the -card specific configuration information. Usually just a set of -I/O address, IRQ and DMA numbers are asked. With some cards the program -asks for some files to be used during initialization of the card. For example -many cards have a DSP chip or microprocessor which must be initialized by -downloading a program (microcode) file to the card. - -Instructions for answering these questions are given in the next section. - - -Card specific information -========================= - -This section gives additional instructions about configuring some cards. -Please refer manual of your card for valid I/O, IRQ and DMA numbers. Using -the same settings with DOS/Windows and Linux is recommended. Using -different values could cause some problems when switching between -different operating systems. - -Sound Blasters (the original ones by Creative) ---------------------------------------------- - -NOTE! Check if you have a PnP Sound Blaster (cards sold after summer 1995 - are almost certainly PnP ones). With PnP cards you should use isapnptools - to activate them (see above). - -It's possible to configure these cards to use different I/O, IRQ and -DMA settings. Since the possible/default settings have changed between various -models, you have to consult manual of your card for the proper ones. It's -a good idea to use the same values than with DOS/Windows. With SB and SB Pro -it's the only choice. SB16 has software selectable IRQ and DMA channels but -using different values with DOS and Linux is likely to cause troubles. The -DOS driver is not able to reset the card properly after warm boot from Linux -if Linux has used different IRQ or DMA values. - -The original (steam) Sound Blaster (versions 1.x and 2.x) use always -DMA1. There is no way to change it. - -The SB16 needs two DMA channels. A 8 bit one (1 or 3) is required for -8 bit operation and a 16 bit one (5, 6 or 7) for the 16 bit mode. In theory -it's possible to use just one (8 bit) DMA channel by answering the 8 bit -one when the configuration program asks for the 16 bit one. This may work -in some systems but is likely to cause terrible noise on some other systems. - -It's possible to use two SB16/32/64 at the same time. To do this you should -first configure OSS/Free for one card. Then edit local.h manually and define -SB2_BASE, SB2_IRQ, SB2_DMA and SB2_DMA2 for the second one. You can't get -the OPL3, MIDI and EMU8000 devices of the second card to work. If you are -going to use two PnP Sound Blasters, ensure that they are of different model -and have different PnP IDs. There is no way to get two cards with the same -card ID and serial number to work. The easiest way to check this is trying -if isapnptools can see both cards or just one. - -NOTE! Don't enable the SM Games option (asked by the configuration program) - if you are not 101% sure that your card is a Logitech Soundman Games - (not a SM Wave or SM16). - -SB Clones ---------- - -First of all: There are no SB16 clones. There are SB Pro clones with a -16 bit mode which is not SB16 compatible. The most likely alternative is that -the 16 bit mode means MSS/WSS. - -There are just a few fully 100% hardware SB or SB Pro compatible cards. -I know just Thunderboard and SM Games. Other cards require some kind of -hardware initialization before they become SB compatible. Check if your card -was listed in the beginning of this file. In this case you should follow -instructions for your card later in this file. - -For other not fully SB clones you may try initialization using DOS in -the following way: - - - Boot DOS so that the card specific driver gets run. - - Hit ctrl-alt-del (or use loadlin) to boot Linux. Don't - switch off power or press the reset button. - - If you use the same I/O, IRQ and DMA settings in Linux, the - card should work. - -If your card is both SB and MSS compatible, I recommend using the MSS mode. -Most cards of this kind are not able to work in the SB and the MSS mode -simultaneously. Using the MSS mode provides 16 bit recording and playback. - -ProAudioSpectrum 16 and compatibles ------------------------------------ - -PAS16 has a SB emulation chip which can be used together with the native -(16 bit) mode of the card. To enable this emulation you should configure -the driver to have SB support too (this has been changed since version -3.5-beta9 of this driver). - -With current driver versions it's also possible to use PAS16 together with -another SB compatible card. In this case you should configure SB support -for the other card and to disable the SB emulation of PAS16 (there is a -separate questions about this). - -With PAS16 you can use two audio device files at the same time. /dev/dsp (and -/dev/audio) is connected to the 8/16 bit native codec and the /dev/dsp1 (and -/dev/audio1) is connected to the SB emulation (8 bit mono only). - -Gravis Ultrasound ------------------ - -There are many different revisions of the Ultrasound card (GUS). The -earliest ones (pre 3.7) don't have a hardware mixer. With these cards -the driver uses a software emulation for synth and pcm playbacks. It's -also possible to switch some of the inputs (line in, mic) off by setting -mixer volume of the channel level below 10%. For recording you have -to select the channel as a recording source and to use volume above 10%. - -GUS 3.7 has a hardware mixer. - -GUS MAX and the 16 bit sampling daughtercard have a CS4231 codec chip which -also contains a mixer. - -Configuring GUS is simple. Just enable the GUS support and GUS MAX or -the 16 bit daughtercard if you have them. Note that enabling the daughter -card disables GUS MAX driver. - -NOTE for owners of the 16 bit daughtercard: By default the daughtercard -uses /dev/dsp (and /dev/audio). Command "ln -sf /dev/dsp1 /dev/dsp" -selects the daughter card as the default device. - -With just the standard GUS enabled the configuration program prompts -for the I/O, IRQ and DMA numbers for the card. Use the same values than -with DOS. - -With the daughter card option enabled you will be prompted for the I/O, -IRQ and DMA numbers for the daughter card. You have to use different I/O -and DMA values than for the standard GUS. The daughter card permits -simultaneous recording and playback. Use /dev/dsp (the daughtercard) for -recording and /dev/dsp1 (GUS GF1) for playback. - -GUS MAX uses the same I/O address and IRQ settings than the original GUS -(GUS MAX = GUS + a CS4231 codec). In addition an extra DMA channel may be used. -Using two DMA channels permits simultaneous playback using two devices -(dev/dsp0 and /dev/dsp1). The second DMA channel is required for -full duplex audio. -To enable the second DMA channels, give a valid DMA channel when the config -program asks for the GUS MAX DMA (entering -1 disables the second DMA). -Using 16 bit DMA channels (5,6 or 7) is recommended. - -If you have problems in recording with GUS MAX, you could try to use -just one 8 bit DMA channel. Recording will not work with one DMA -channel if it's a 16 bit one. - -Microphone input of GUS MAX is connected to mixer in little bit nonstandard -way. There is actually two microphone volume controls. Normal "mic" controls -only recording level. Mixer control "speaker" is used to control volume of -microphone signal connected directly to line/speaker out. So just decrease -volume of "speaker" if you have problems with microphone feedback. - -GUS ACE works too but any attempt to record or to use the MIDI port -will fail. - -GUS PnP (with RAM) is partially supported but it needs to be initialized using -DOS or isapnptools before starting the driver. - -MPU401 and Windows Sound System -------------------------------- - -Again. Don't enable these options in case your card is listed -somewhere else in this file. - -Configuring these cards is obvious (or it should be). With MSS -you should probably enable the OPL3 synth also since -most MSS compatible cards have it. However check that this is true -before enabling OPL3. - -Sound driver supports more than one MPU401 compatible cards at the same time -but the config program asks config info for just the first of them. -Adding the second or third MPU interfaces must be done manually by -editing sound/local.h (after running the config program). Add defines for -MPU2_BASE & MPU2_IRQ (and MPU3_BASE & MPU3_IRQ) to the file. - -CAUTION! - -The default I/O base of Adaptec AHA-1542 SCSI controller is 0x330 which -is also the default of the MPU401 driver. Don't configure the sound driver to -use 0x330 as the MPU401 base if you have a AHA1542. The kernel will not boot -if you make this mistake. - -PSS ---- - -Even the PSS cards are compatible with SB, MSS and MPU401, you must not -enable these options when configuring the driver. The configuration -program handles these options itself. (You may use the SB, MPU and MSS options -together with PSS if you have another card on the system). - -The PSS driver enables MSS and MPU401 modes of the card. SB is not enabled -since it doesn't work concurrently with MSS. The driver loads also a -DSP algorithm which is used to for the general MIDI emulation. The -algorithm file (.ld) is read by the config program and written to a -file included when the pss.c is compiled. For this reason the config -program asks if you want to download the file. Use the genmidi.ld file -distributed with the DOS/Windows drivers of the card (don't use the mt32.ld). -With some cards the file is called 'synth.ld'. You must have access to -the file when configuring the driver. The easiest way is to mount the DOS -partition containing the file with Linux. - -It's possible to load your own DSP algorithms and run them with the card. -Look at the directory pss_test of snd-util-3.0.tar.gz for more info. - -AudioTrix Pro -------------- - -You have to enable the OPL3 and SB (not SB Pro or SB16) drivers in addition -to the native AudioTrix driver. Don't enable MSS or MPU drivers. - -Configuring ATP is little bit tricky since it uses so many I/O, IRQ and -DMA numbers. Using the same values than with DOS/Win is a good idea. Don't -attempt to use the same IRQ or DMA channels twice. - -The SB mode of ATP is implemented so the ATP driver just enables SB -in the proper address. The SB driver handles the rest. You have to configure -both the SB driver and the SB mode of ATP to use the same IRQ, DMA and I/O -settings. - -Also the ATP has a microcontroller for the General MIDI emulation (OPL4). -For this reason the driver asks for the name of a file containing the -microcode (TRXPRO.HEX). This file is usually located in the directory -where the DOS drivers were installed. You must have access to this file -when configuring the driver. - -If you have the effects daughtercard, it must be initialized by running -the setfx program of snd-util-3.0.tar.gz package. This step is not required -when using the (future) binary distribution version of the driver. - -Ensoniq SoundScape ------------------- - -NOTE! The new PnP SoundScape is not supported yet. Soundscape compatible - cards made by Reveal don't work with Linux. They use older revision - of the Soundscape chipset which is not fully compatible with - newer cards made by Ensoniq. - -The SoundScape driver handles initialization of MSS and MPU supports -itself so you don't need to enable other drivers than SoundScape -(enable also the /dev/dsp, /dev/sequencer and MIDI supports). - -!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! -!!!!! !!!! -!!!!! NOTE! Before version 3.5-beta6 there WERE two sets of audio !!!! -!!!!! device files (/dev/dsp0 and /dev/dsp1). The first one WAS !!!! -!!!!! used only for card initialization and the second for audio !!!! -!!!!! purposes. It WAS required to change /dev/dsp (a symlink) to !!!! -!!!!! point to /dev/dsp1. !!!! -!!!!! !!!! -!!!!! This is not required with OSS versions 3.5-beta6 and later !!!! -!!!!! since there is now just one audio device file. Please !!!! -!!!!! change /dev/dsp to point back to /dev/dsp0 if you are !!!! -!!!!! upgrading from an earlier driver version using !!!! -!!!!! (cd /dev;rm dsp;ln -s dsp0 dsp). !!!! -!!!!! !!!! -!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! - -The configuration program asks one DMA channel and two interrupts. One IRQ -and one DMA is used by the MSS codec. The second IRQ is required for the -MPU401 mode (you have to use different IRQs for both purposes). -There were earlier two DMA channels for SoundScape but the current driver -version requires just one. - -The SoundScape card has a Motorola microcontroller which must initialized -_after_ boot (the driver doesn't initialize it during boot). -The initialization is done by running the 'ssinit' program which is -distributed in the snd-util-3.0.tar.gz package. You have to edit two -defines in the ssinit.c and then compile the program. You may run ssinit -manually (after each boot) or add it to /etc/rc.d/rc.local. - -The ssinit program needs the microcode file that comes with the DOS/Windows -driver of the card. You will need to use version 1.30.00 or later -of the microcode file (sndscape.co0 or sndscape.co1 depending on -your card model). THE OLD sndscape.cod WILL NOT WORK. IT WILL HANG YOUR -MACHINE. The only way to get the new microcode file is to download -and install the DOS/Windows driver from ftp://ftp.ensoniq.com/pub. - -Then you have to select the proper microcode file to use: soundscape.co0 -is the right one for most cards and sndscape.co1 is for few (older) cards -made by Reveal and/or Spea. The driver has capability to detect the card -version during boot. Look at the boot log messages in /var/adm/messages -and locate the sound driver initialization message for the SoundScape -card. If the driver displays string , you have -an old card and you will need to use sndscape.co1. For other cards use -soundscape.co0. New Soundscape revisions such as Elite and PnP use -code files with higher numbers (.co2, .co3, etc.). - -NOTE! Ensoniq Soundscape VIVO is not compatible with other Soundscape cards. - Currently it's possible to use it in Linux only with OSS/Linux - drivers. - -Check /var/adm/messages after running ssinit. The driver prints -the board version after downloading the microcode file. That version -number must match the number in the name of the microcode file (extension). - -Running ssinit with a wrong version of the sndscape.co? file is not -dangerous as long as you don't try to use a file called sndscape.cod. -If you have initialized the card using a wrong microcode file (sounds -are terrible), just modify ssinit.c to use another microcode file and try -again. It's possible to use an earlier version of sndscape.co[01] but it -may sound weird. - -MAD16 (Pro) and Mozart ----------------------- - -You need to enable just the MAD16 /Mozart support when configuring -the driver. _Don't_ enable SB, MPU401 or MSS. However you will need the -/dev/audio, /dev/sequencer and MIDI supports. - -Mozart and OPTi 82C928 (the original MAD16) chips don't support -MPU401 mode so enter just 0 when the configuration program asks the -MPU/MIDI I/O base. The MAD16 Pro (OPTi 82C929) and 82C930 chips have MPU401 -mode. - -TB Tropez is based on the 82C929 chip. It has two MIDI ports. -The one connected to the MAD16 chip is the second one (there is a second -MIDI connector/pins somewhere??). If you have not connected the second MIDI -port, just disable the MIDI port of MAD16. The 'Maui' compatible synth of -Tropez is jumper configurable and not connected to the MAD16 chip (the -Maui driver can be used with it). - -Some MAD16 based cards may cause feedback, whistle or terrible noise if the -line3 mixer channel is turned too high. This happens at least with Shuttle -Sound System. Current driver versions set volume of line3 low enough so -this should not be a problem. - -If you have a MAD16 card which have an OPL4 (FM + Wave table) synthesizer -chip (_not_ an OPL3), you have to append a line containing #define MAD16_OPL4 -to the file linux/drivers/sound/local.h (after running make config). - -MAD16 cards having a CS4231 codec support full duplex mode. This mode -can be enabled by configuring the card to use two DMA channels. Possible -DMA channel pairs are: 0&1, 1&0 and 3&0. - -NOTE! Cards having an OPTi 82C924/82C925 chip work with OSS/Free only in -non-PnP mode (usually jumper selectable). The PnP mode is supported only -by OSS/Linux. - -MV Jazz (ProSonic) ------------------- - -The Jazz16 driver is just a hack made to the SB Pro driver. However it works -fairly well. You have to enable SB, SB Pro (_not_ SB16) and MPU401 supports -when configuring the driver. The configuration program asks later if you -want support for MV Jazz16 based cards (after asking SB base address). Answer -'y' here and the driver asks the second (16 bit) DMA channel. - -The Jazz16 driver uses the MPU401 driver in a way which will cause -problems if you have another MPU401 compatible card. In this case you must -give address of the Jazz16 based MPU401 interface when the config -program prompts for the MPU401 information. Then look at the MPU401 -specific section for instructions about configuring more than one MPU401 cards. - -Logitech Soundman Wave ----------------------- - -Read the above MV Jazz specific instructions first. - -The Logitech SoundMan Wave (don't confuse this with the SM16 or SM Games) is -a MV Jazz based card which has an additional OPL4 based wave table -synthesizer. The OPL4 chip is handled by an on board microcontroller -which must be initialized during boot. The config program asks if -you have a SM Wave immediately after asking the second DMA channel of jazz16. -If you answer 'y', the config program will ask name of the file containing -code to be loaded to the microcontroller. The file is usually called -MIDI0001.BIN and it's located in the DOS/Windows driver directory. The file -may also be called as TSUNAMI.BIN or something else (older cards?). - -The OPL4 synth will be inaccessible without loading the microcontroller code. - -Also remember to enable SB MPU401 support if you want to use the OPL4 mode. -(Don't enable the 'normal' MPU401 device as with some earlier driver -versions (pre 3.5-alpha8)). - -NOTE! Don't answer 'y' when the driver asks about SM Games support - (the next question after the MIDI0001.BIN name). However - answering 'y' doesn't cause damage your computer so don't panic. - -Sound Galaxies --------------- - -There are many different Sound Galaxy cards made by Aztech. The 8 bit -ones are fully SB or SB Pro compatible and there should be no problems -with them. - -The older 16 bit cards (SG Pro16, SG NX Pro16, Nova and Lyra) have -an EEPROM chip for storing the configuration data. There is a microcontroller -which initializes the card to match the EEPROM settings when the machine -is powered on. These cards actually behave just like they have jumpers -for all of the settings. Configure driver for MSS, MPU, SB/SB Pro and OPL3 -supports with these cards. - -There are some new Sound Galaxies in the market. I have no experience with -them so read the card's manual carefully. - -ESS ES1688 and ES688 'AudioDrive' based cards ---------------------------------------------- - -Support for these two ESS chips is embedded in the SB driver. -Configure these cards just like SB. Enable the 'SB MPU401 MIDI port' -if you want to use MIDI features of ES1688. ES688 doesn't have MPU mode -so you don't need to enable it (the driver uses normal SB MIDI automatically -with ES688). - -NOTE! ESS cards are not compatible with MSS/WSS so don't worry if MSS support -of OSS doesn't work with it. - -There are some ES1688/688 based sound cards and (particularly) motherboards -which use software configurable I/O port relocation feature of the chip. -This ESS proprietary feature is supported only by OSS/Linux. - -There are ES1688 based cards which use different interrupt pin assignment than -recommended by ESS (5, 7, 9/2 and 10). In this case all IRQs don't work. -At least a card called (Pearl?) Hypersound 16 supports IRQ 15 but it doesn't -work. - -ES1868 is a PnP chip which is (supposed to be) compatible with ESS1688 -probably works with OSS/Free after initialization using isapnptools. - -Reveal cards ------------- - -There are several different cards made/marketed by Reveal. Some of them -are compatible with SoundScape and some use the MAD16 chip. You may have -to look at the card and try to identify its origin. - -Diamond -------- - -The oldest (Sierra Aria based) sound cards made by Diamond are not supported -(they may work if the card is initialized using DOS). The recent (LX?) -models are based on the MAD16 chip which is supported by the driver. - -Audio Excel DSP16 ------------------ - -Support for this card is currently not functional. A new driver for it -should be available later this year. - -PCMCIA cards ------------- - -Sorry, can't help. Some cards may work and some don't. - -TI TM4000M notebooks --------------------- - -These computers have a built in sound support based on the Jazz chipset. -Look at the instructions for MV Jazz (above). It's also important to note -that there is something wrong with the mouse port and sound at least on -some TM models. Don't enable the "C&T 82C710 mouse port support" when -configuring Linux. Having it enabled is likely to cause mysterious problems -and kernel failures when sound is used. - -miroSOUND ---------- - -The miroSOUND PCM1-pro, PCM12 and PCM20 radio has been used -successfully. These cards are based on the MAD16, OPL4, and CS4231A chips -and everything said in the section about MAD16 cards applies here, -too. The only major difference between the PCMxx and other MAD16 cards -is that instead of the mixer in the CS4231 codec a separate mixer -controlled by an on-board 80C32 microcontroller is used. Control of -the mixer takes place via the ACI (miro's audio control interface) -protocol that is implemented in a separate lowlevel driver. Make sure -you compile this ACI driver together with the normal MAD16 support -when you use a miroSOUND PCMxx card. The ACI mixer is controlled by -/dev/mixer and the CS4231 mixer by /dev/mixer1 (depends on load -time). Only in special cases you want to change something regularly on -the CS4231 mixer. - -The miroSOUND PCM12 and PCM20 radio is capable of full duplex -operation (simultaneous PCM replay and recording), which allows you to -implement nice real-time signal processing audio effect software and -network telephones. The ACI mixer has to be switched into the "solo" -mode for duplex operation in order to avoid feedback caused by the -mixer (input hears output signal). You can de-/activate this mode -through toggling the record button for the wave controller with an -OSS-mixer. - -The PCM20 contains a radio tuner, which is also controlled by -ACI. This radio tuner is supported by the ACI driver together with the -miropcm20.o module. Also the 7-band equalizer is integrated -(limited by the OSS-design). Development has started and maybe -finished for the RDS decoder on this card, too. You will be able to -read RadioText, the Programme Service name, Programme TYpe and -others. Even the v4l radio module benefits from it with a refined -strength value. See aci.[ch] and miropcm20*.[ch] for more details. - -The following configuration parameters have worked fine for the PCM12 -in Markus Kuhn's system, many other configurations might work, too: -CONFIG_MAD16_BASE=0x530, CONFIG_MAD16_IRQ=11, CONFIG_MAD16_DMA=3, -CONFIG_MAD16_DMA2=0, CONFIG_MAD16_MPU_BASE=0x330, CONFIG_MAD16_MPU_IRQ=10, -DSP_BUFFSIZE=65536, SELECTED_SOUND_OPTIONS=0x00281000. - -Bas van der Linden is using his PCM1-pro with a configuration that -differs in: CONFIG_MAD16_IRQ=7, CONFIG_MAD16_DMA=1, CONFIG_MAD16_MPU_IRQ=9 - -Compaq Deskpro XL ------------------ - -The builtin sound hardware of Compaq Deskpro XL is now supported. -You need to configure the driver with MSS and OPL3 supports enabled. -In addition you need to manually edit linux/drivers/sound/local.h and -to add a line containing "#define DESKPROXL" if you used -make menuconfig/xconfig. - -Others? -------- - -Since there are so many different sound cards, it's likely that I have -forgotten to mention many of them. Please inform me if you know yet another -card which works with Linux, please inform me (or is anybody else -willing to maintain a database of supported cards (just like in XF86)?). - -Cards not supported yet -======================= - -Please check the version of sound driver you are using before -complaining that your card is not supported. It's possible you are -using a driver version which was released months before your card was -introduced. - -First of all, there is an easy way to make most sound cards work with Linux. -Just use the DOS based driver to initialize the card to a known state, then use -loadlin.exe to boot Linux. If Linux is configured to use the same I/O, IRQ and -DMA numbers as DOS, the card could work. -(ctrl-alt-del can be used in place of loadlin.exe but it doesn't work with -new motherboards). This method works also with all/most PnP sound cards. - -Don't get fooled with SB compatibility. Most cards are compatible with -SB but that may require a TSR which is not possible with Linux. If -the card is compatible with MSS, it's a better choice. Some cards -don't work in the SB and MSS modes at the same time. - -Then there are cards which are no longer manufactured and/or which -are relatively rarely used (such as the 8 bit ProAudioSpectrum -models). It's extremely unlikely that such cards ever get supported. -Adding support for a new card requires much work and increases time -required in maintaining the driver (some changes need to be done -to all low level drivers and be tested too, maybe with multiple -operating systems). For this reason I have made a decision to not support -obsolete cards. It's possible that someone else makes a separately -distributed driver (diffs) for the card. - -Writing a driver for a new card is not possible if there are no -programming information available about the card. If you don't -find your new card from this file, look from the home page -(http://www.opensound.com/ossfree). Then please contact -manufacturer of the card and ask if they have (or are willing to) -released technical details of the card. Do this before contacting me. I -can only answer 'no' if there are no programming information available. - -I have made decision to not accept code based on reverse engineering -to the driver. There are three main reasons: First I don't want to break -relationships to sound card manufacturers. The second reason is that -maintaining and supporting a driver without any specs will be a pain. -The third reason is that companies have freedom to refuse selling their -products to other than Windows users. - -Some companies don't give low level technical information about their -products to public or at least their require signing a NDA. It's not -possible to implement a freeware driver for them. However it's possible -that support for such cards become available in the commercial version -of this driver (see http://www.4Front-tech.com/oss.html for more info). - -There are some common audio chipsets that are not supported yet. For example -Sierra Aria and IBM Mwave. It's possible that these architectures -get some support in future but I can't make any promises. Just look -at the home page (http://www.opensound.com/ossfree/) -for latest info. - -Information about unsupported sound cards and chipsets is welcome as well -as free copies of sound cards, SDKs and operating systems. - -If you have any corrections and/or comments, please contact me. - -Hannu Savolainen -hannu@opensound.com - -home page of OSS/Free: http://www.opensound.com/ossfree - -home page of commercial OSS -(Open Sound System) drivers: http://www.opensound.com/oss.html diff --git a/Documentation/sound/oss/README.modules b/Documentation/sound/oss/README.modules deleted file mode 100644 index cdc039421a46..000000000000 --- a/Documentation/sound/oss/README.modules +++ /dev/null @@ -1,106 +0,0 @@ -Building a modular sound driver -================================ - - The following information is current as of linux-2.1.85. Check the other -readme files, especially README.OSS, for information not specific to -making sound modular. - - First, configure your kernel. This is an idea of what you should be -setting in the sound section: - - Sound card support - - 100% Sound Blaster compatibles (SB16/32/64, ESS, Jazz16) support - - I have SoundBlaster. Select your card from the list. - - Generic OPL2/OPL3 FM synthesizer support - FM synthesizer (YM3812/OPL-3) support - - If you don't set these, you will probably find you can play .wav files -but not .midi. As the help for them says, set them unless you know your -card does not use one of these chips for FM support. - - Once you are configured, make zlilo, modules, modules_install; reboot. -Note that it is no longer necessary or possible to configure sound in the -drivers/sound dir. Now one simply configures and makes one's kernel and -modules in the usual way. - - Then, add to your /etc/modprobe.d/oss.conf something like: - -alias char-major-14-* sb -install sb /sbin/modprobe -i sb && /sbin/modprobe adlib_card -options sb io=0x220 irq=7 dma=1 dma16=5 mpu_io=0x330 -options adlib_card io=0x388 # FM synthesizer - - Alternatively, if you have compiled in kernel level ISAPnP support: - -alias char-major-14 sb -softdep sb post: adlib_card -options adlib_card io=0x388 - - The effect of this is that the sound driver and all necessary bits and -pieces autoload on demand, assuming you use kerneld (a sound choice) and -autoclean when not in use. Also, options for the device drivers are -set. They will not work without them. Change as appropriate for your card. -If you are not yet using the very cool kerneld, you will have to "modprobe --k sb" yourself to get things going. Eventually things may be fixed so -that this kludgery is not necessary; for the time being, it seems to work -well. - - Replace 'sb' with the driver for your card, and give it the right -options. To find the filename of the driver, look in -/lib/modules//misc. Mine looks like: - -adlib_card.o # This is the generic OPLx driver -opl3.o # The OPL3 driver -sb.o # <> -sound.o # The sound driver -uart401.o # Used by sb, maybe other cards - - Whichever card you have, try feeding it the options that would be the -default if you were making the driver wired, not as modules. You can -look at function referred to by module_init() for the card to see what -args are expected. - - Note that at present there is no way to configure the io, irq and other -parameters for the modular drivers as one does for the wired drivers.. One -needs to pass the modules the necessary parameters as arguments, either -with /etc/modprobe.d/*.conf or with command-line args to modprobe, e.g. - -modprobe sb io=0x220 irq=7 dma=1 dma16=5 mpu_io=0x330 -modprobe adlib_card io=0x388 - - recommend using /etc/modprobe.d/*.conf. - -Persistent DMA Buffers: - -The sound modules normally allocate DMA buffers during open() and -deallocate them during close(). Linux can often have problems allocating -DMA buffers for ISA cards on machines with more than 16MB RAM. This is -because ISA DMA buffers must exist below the 16MB boundary and it is quite -possible that we can't find a large enough free block in this region after -the machine has been running for any amount of time. The way to avoid this -problem is to allocate the DMA buffers during module load and deallocate -them when the module is unloaded. For this to be effective we need to load -the sound modules right after the kernel boots, either manually or by an -init script, and keep them around until we shut down. This is a little -wasteful of RAM, but it guarantees that sound always works. - -To make the sound driver use persistent DMA buffers we need to pass the -sound.o module a "dmabuf=1" command-line argument. This is normally done -in /etc/modprobe.d/*.conf files like so: - -options sound dmabuf=1 - -If you have 16MB or less RAM or a PCI sound card, this is wasteful and -unnecessary. It is possible that machine with 16MB or less RAM will find -this option useful, but if your machine is so memory-starved that it -cannot find a 64K block free, you will be wasting even more RAM by keeping -the sound modules loaded and the DMA buffers allocated when they are not -needed. The proper solution is to upgrade your RAM. But you do also have -this improper solution as well. Use it wisely. - - I'm afraid I know nothing about anything but my setup, being more of a -text-mode guy anyway. If you have options for other cards or other helpful -hints, send them to me, Jim Bray, jb@as220.org, http://as220.org/jb. diff --git a/Documentation/sound/oss/README.ymfsb b/Documentation/sound/oss/README.ymfsb deleted file mode 100644 index b6b77906b58d..000000000000 --- a/Documentation/sound/oss/README.ymfsb +++ /dev/null @@ -1,107 +0,0 @@ -Legacy audio driver for YMF7xx PCI cards. - - -FIRST OF ALL -============ - - This code references YAMAHA's sample codes and data sheets. - I respect and thank for all people they made open the information - about YMF7xx cards. - - And this codes heavily based on Jeff Garzik 's - old VIA 82Cxxx driver (via82cxxx.c). I also respect him. - - -DISCLIMER -========= - - This driver is currently at early ALPHA stage. It may cause serious - damage to your computer when used. - PLEASE USE IT AT YOUR OWN RISK. - - -ABOUT THIS DRIVER -================= - - This code enables you to use your YMF724[A-F], YMF740[A-C], YMF744, YMF754 - cards. When enabled, your card acts as "SoundBlaster Pro" compatible card. - It can only play 22.05kHz / 8bit / Stereo samples, control external MIDI - port. - If you want to use your card as recent "16-bit" card, you should use - Alsa or OSS/Linux driver. Of course you can write native PCI driver for - your cards :) - - -USAGE -===== - - # modprobe ymfsb (options) - - -OPTIONS FOR MODULE -================== - - io : SB base address (0x220, 0x240, 0x260, 0x280) - synth_io : OPL3 base address (0x388, 0x398, 0x3a0, 0x3a8) - dma : DMA number (0,1,3) - master_volume: AC'97 PCM out Vol (0-100) - spdif_out : SPDIF-out flag (0:disable 1:enable) - - These options will change in future... - - -FREQUENCY -========= - - When playing sounds via this driver, you will hear its pitch is slightly - lower than original sounds. Since this driver recognizes your card acts - with 21.739kHz sample rates rather than 22.050kHz (I think it must be - hardware restriction). So many players become tone deafness. - To prevent this, you should express some options to your sound player - that specify correct sample frequency. For example, to play your MP3 file - correctly with mpg123, specify the frequency like following: - - % mpg123 -r 21739 foo.mp3 - - -SPDIF OUT -========= - - With installing modules with option 'spdif_out=1', you can enjoy your - sounds from SPDIF-out of your card (if it had). - Its Fs is fixed to 48kHz (It never means the sample frequency become - up to 48kHz. All sounds via SPDIF-out also 22kHz samples). So your - digital-in capable components has to be able to handle 48kHz Fs. - - -COPYING -======= - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - - -TODO -==== - * support for multiple cards - (set the different SB_IO,MPU_IO,OPL_IO for each cards) - - * support for OPL (dmfm) : There will be no requirements... :-< - - -AUTHOR -====== - - Daisuke Nagano - diff --git a/Documentation/sound/oss/SoundPro b/Documentation/sound/oss/SoundPro deleted file mode 100644 index 9d4db1f29d3c..000000000000 --- a/Documentation/sound/oss/SoundPro +++ /dev/null @@ -1,105 +0,0 @@ -Documentation for the SoundPro CMI8330 extensions in the WSS driver (ad1848.o) ------------------------------------------------------------------------------- - -( Be sure to read Documentation/sound/oss/CMI8330 too ) - -Ion Badulescu, ionut@cs.columbia.edu -February 24, 1999 - -(derived from the OPL3-SA2 documentation by Scott Murray) - -The SoundPro CMI8330 (ISA) is a chip usually found on some Taiwanese -motherboards. The official name in the documentation is CMI8330, SoundPro -is the nickname and the big inscription on the chip itself. - -The chip emulates a WSS as well as a SB16, but it has certain differences -in the mixer section which require separate support. It also emulates an -MPU401 and an OPL3 synthesizer, so you probably want to enable support -for these, too. - -The chip identifies itself as an AD1848, but its mixer is significantly -more advanced than the original AD1848 one. If your system works with -either WSS or SB16 and you are having problems with some mixer controls -(no CD audio, no line-in, etc), you might want to give this driver a try. -Detection should work, but it hasn't been widely tested, so it might still -mis-identify the chip. You can still force soundpro=1 in the modprobe -parameters for ad1848. Please let me know if it happens to you, so I can -adjust the detection routine. - -The chip is capable of doing full-duplex, but since the driver sees it as an -AD1848, it cannot take advantage of this. Moreover, the full-duplex mode is -not achievable through the WSS interface, b/c it needs a dma16 line which is -assigned only to the SB16 subdevice (with isapnp). Windows documentation -says the user must use WSS Playback and SB16 Recording for full-duplex, so -it might be possible to do the same thing under Linux. You can try loading -up both ad1848 and sb then use one for playback and the other for -recording. I don't know if this works, b/c I haven't tested it. Anyway, if -you try it, be very careful: the SB16 mixer *mostly* works, but certain -settings can have unexpected effects. Use the WSS mixer for best results. - -There is also a PCI SoundPro chip. I have not seen this chip, so I have -no idea if the driver will work with it. I suspect it won't. - -As with PnP cards, some configuration is required. There are two ways -of doing this. The most common is to use the isapnptools package to -initialize the card, and use the kernel module form of the sound -subsystem and sound drivers. Alternatively, some BIOS's allow manual -configuration of installed PnP devices in a BIOS menu, which should -allow using the non-modular sound drivers, i.e. built into the kernel. -Since in this latter case you cannot use module parameters, you will -have to enable support for the SoundPro at compile time. - -The IRQ and DMA values can be any that are considered acceptable for a -WSS. Assuming you've got isapnp all happy, then you should be able to -do something like the following (which *must* match the isapnp/BIOS -configuration): - -modprobe ad1848 io=0x530 irq=11 dma=0 soundpro=1 --and maybe- -modprobe sb io=0x220 irq=5 dma=1 dma16=5 - --then- -modprobe mpu401 io=0x330 irq=9 -modprobe opl3 io=0x388 - -If all goes well and you see no error messages, you should be able to -start using the sound capabilities of your system. If you get an -error message while trying to insert the module(s), then make -sure that the values of the various arguments match what you specified -in your isapnp configuration file, and that there is no conflict with -another device for an I/O port or interrupt. Checking the contents of -/proc/ioports and /proc/interrupts can be useful to see if you're -butting heads with another device. - -If you do not see the chipset version message, and none of the other -messages present in the system log are helpful, try adding 'debug=1' -to the ad1848 parameters, email me the syslog results and I'll do -my best to help. - -Lastly, if you're using modules and want to set up automatic module -loading with kmod, the kernel module loader, here is the section I -currently use in my conf.modules file: - -# Sound -post-install sound modprobe -k ad1848; modprobe -k mpu401; modprobe -k opl3 -options ad1848 io=0x530 irq=11 dma=0 -options sb io=0x220 irq=5 dma=1 dma16=5 -options mpu401 io=0x330 irq=9 -options opl3 io=0x388 - -The above ensures that ad1848 will be loaded whenever the sound system -is being used. - -Good luck. - -Ion - -NOT REALLY TESTED: -- recording -- recording device selection -- full-duplex - -TODO: -- implement mixer support for surround, loud, digital CD switches. -- come up with a scheme which allows recording volumes for each subdevice. -This is a major OSS API change. diff --git a/Documentation/sound/oss/Soundblaster b/Documentation/sound/oss/Soundblaster deleted file mode 100644 index b288d464ba8b..000000000000 --- a/Documentation/sound/oss/Soundblaster +++ /dev/null @@ -1,53 +0,0 @@ -modprobe sound -insmod uart401 -insmod sb ... - -This loads the driver for the Sound Blaster and assorted clones. Cards that -are covered by other drivers should not be using this driver. - -The Sound Blaster module takes the following arguments - -io I/O address of the Sound Blaster chip (0x220,0x240,0x260,0x280) -irq IRQ of the Sound Blaster chip (5,7,9,10) -dma 8-bit DMA channel for the Sound Blaster (0,1,3) -dma16 16-bit DMA channel for SB16 and equivalent cards (5,6,7) -mpu_io I/O for MPU chip if present (0x300,0x330) - -sm_games=1 Set if you have a Logitech soundman games -acer=1 Set this to detect cards in some ACER notebooks -mwave_bug=1 Set if you are trying to use this driver with mwave (see on) -type Use this to specify a specific card type - -The following arguments are taken if ISAPnP support is compiled in - -isapnp=0 Set this to disable ISAPnP detection (use io=0xXXX etc. above) -multiple=0 Set to disable detection of multiple Soundblaster cards. - Consider it a bug if this option is needed, and send in a - report. -pnplegacy=1 Set this to be able to use a PnP card(s) along with a single - non-PnP (legacy) card. Above options for io, irq, etc. are - needed, and will apply only to the legacy card. -reverse=1 Reverses the order of the search in the PnP table. -uart401=1 Set to enable detection of mpu devices on some clones. -isapnpjump=n Jumps to slot n in the driver's PnP table. Use the source, - Luke. - -You may well want to load the opl3 driver for synth music on most SB and -clone SB devices - -insmod opl3 io=0x388 - -Using Mwave - -To make this driver work with Mwave you must set mwave_bug. You also need -to warm boot from DOS/Windows with the required firmware loaded under this -OS. IBM are being difficult about documenting how to load this firmware. - -Avance Logic ALS007 - -This card is supported; see the separate file ALS007 for full details. - -Avance Logic ALS100 - -This card is supported; setup should be as for a standard Sound Blaster 16. -The driver will identify the audio device as a "Sound Blaster 16 (ALS-100)". diff --git a/Documentation/sound/oss/Tropez+ b/Documentation/sound/oss/Tropez+ deleted file mode 100644 index b93a6b734fc0..000000000000 --- a/Documentation/sound/oss/Tropez+ +++ /dev/null @@ -1,26 +0,0 @@ -From: Paul Barton-Davis - -Here is the configuration I use with a Tropez+ and my modular -driver: - - alias char-major-14 wavefront - alias synth0 wavefront - alias mixer0 cs4232 - alias audio0 cs4232 - pre-install wavefront modprobe "-k" "cs4232" - post-install wavefront modprobe "-k" "opl3" - options wavefront io=0x200 irq=9 - options cs4232 synthirq=9 synthio=0x200 io=0x530 irq=5 dma=1 dma2=0 - options opl3 io=0x388 - -Things to note: - - the wavefront options "io" and "irq" ***MUST*** match the "synthio" - and "synthirq" cs4232 options. - - you can do without the opl3 module if you don't - want to use the OPL/[34] synth on the soundcard - - the opl3 io parameter is conventionally not adjustable. - -Please see drivers/sound/README.wavefront for more details. diff --git a/Documentation/sound/oss/VIBRA16 b/Documentation/sound/oss/VIBRA16 deleted file mode 100644 index 68a5a46beb88..000000000000 --- a/Documentation/sound/oss/VIBRA16 +++ /dev/null @@ -1,80 +0,0 @@ -Sound Blaster 16X Vibra addendum --------------------------------- -by Marius Ilioaea - Stefan Laudat - -Sat Mar 6 23:55:27 EET 1999 - - Hello again, - - Playing with a SB Vibra 16x soundcard we found it very difficult -to setup because the kernel reported a lot of DMA errors and wouldn't -simply play any sound. - A good starting point is that the vibra16x chip full-duplex facility -is neither still exploited by the sb driver found in the linux kernel -(tried it with a 2.2.2-ac7), nor in the commercial OSS package (it reports -it as half-duplex soundcard). Oh, I almost forgot, the RedHat sndconfig -failed detecting it ;) - So, the big problem still remains, because the sb module wants a -8-bit and a 16-bit dma, which we could not allocate for vibra... it supports -only two 8-bit dma channels, the second one will be passed to the module -as a 16 bit channel, the kernel will yield about that but everything will -be okay, trust us. - The only inconvenient you may find is that you will have -some sound playing jitters if you have HDD dma support enabled - but this -will happen with almost all soundcards... - - A fully working isapnp.conf is just here: - - - -(READPORT 0x0203) -(ISOLATE PRESERVE) -(IDENTIFY *) -(VERBOSITY 2) -(CONFLICT (IO FATAL)(IRQ FATAL)(DMA FATAL)(MEM FATAL)) # or WARNING -# SB 16 and OPL3 devices -(CONFIGURE CTL00f0/-1 (LD 0 -(INT 0 (IRQ 5 (MODE +E))) -(DMA 0 (CHANNEL 1)) -(DMA 1 (CHANNEL 3)) -(IO 0 (SIZE 16) (BASE 0x0220)) -(IO 2 (SIZE 4) (BASE 0x0388)) -(NAME "CTL00f0/-1[0]{Audio }") -(ACT Y) -)) - -# Joystick device - only if you need it :-/ - -(CONFIGURE CTL00f0/-1 (LD 1 -(IO 0 (SIZE 1) (BASE 0x0200)) -(NAME "CTL00f0/-1[1]{Game }") -(ACT Y) -)) -(WAITFORKEY) - - - - So, after a good kernel modules compilation and a 'depmod -a kernel_ver' -you may want to: - -modprobe sb io=0x220 irq=5 dma=1 dma16=3 - - Or, take the hard way: - -modprobe soundcore -modprobe sound -modprobe uart401 -modprobe sb io=0x220 irq=5 dma=1 dma16=3 -# do you need MIDI? -modprobe opl3=0x388 - - Just in case, the kernel sound support should be: - -CONFIG_SOUND=m -CONFIG_SOUND_OSS=m -CONFIG_SOUND_SB=m - - Enjoy your new noisy Linux box! ;) - - diff --git a/Documentation/sound/oss/WaveArtist b/Documentation/sound/oss/WaveArtist deleted file mode 100644 index f4f3407cd818..000000000000 --- a/Documentation/sound/oss/WaveArtist +++ /dev/null @@ -1,170 +0,0 @@ - - (the following is from the armlinux CVS) - - WaveArtist mixer and volume levels can be accessed via these commands: - - nn30 read registers nn, where nn = 00 - 09 for mixer settings - 0a - 13 for channel volumes - mm31 write the volume setting in pairs, where mm = (nn - 10) / 2 - rr32 write the mixer settings in pairs, where rr = nn/2 - xx33 reset all settings to default - 0y34 select mono source, y=0 = left, y=1 = right - - bits - nn 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 00 | 0 | 0 0 1 1 | left line mixer gain | left aux1 mixer gain |lmute| -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 01 | 0 | 0 1 0 1 | left aux2 mixer gain | right 2 left mic gain |mmute| -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 02 | 0 | 0 1 1 1 | left mic mixer gain | left mic | left mixer gain |dith | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 03 | 0 | 1 0 0 1 | left mixer input select |lrfg | left ADC gain | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 04 | 0 | 1 0 1 1 | right line mixer gain | right aux1 mixer gain |rmute| -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 05 | 0 | 1 1 0 1 | right aux2 mixer gain | left 2 right mic gain |test | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 06 | 0 | 1 1 1 1 | right mic mixer gain | right mic |right mixer gain |rbyps| -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 07 | 1 | 0 0 0 1 | right mixer select |rrfg | right ADC gain | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 08 | 1 | 0 0 1 1 | mono mixer gain |right ADC mux sel|left ADC mux sel | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 09 | 1 | 0 1 0 1 |loopb|left linout|loop|ADCch|TxFch|OffCD|test |loopb|loopb|osamp| -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 0a | 0 | left PCM channel volume | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 0b | 0 | right PCM channel volume | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 0c | 0 | left FM channel volume | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 0d | 0 | right FM channel volume | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 0e | 0 | left wavetable channel volume | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 0f | 0 | right wavetable channel volume | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 10 | 0 | left PCM expansion channel volume | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 11 | 0 | right PCM expansion channel volume | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 12 | 0 | left FM expansion channel volume | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - 13 | 0 | right FM expansion channel volume | -----+---+------------+-----+-----+-----+----+-----+-----+-----+-----+-----+-----+-----+ - - lmute: left mute - mmute: mono mute - dith: dithds - lrfg: - rmute: right mute - rbyps: right bypass - rrfg: - ADCch: - TxFch: - OffCD: - osamp: - - And the following diagram is derived from the description in the CVS archive: - - MIC L (mouthpiece) - +------+ - -->PreAmp>-\ - +--^---+ | - | | - r2b4-5 | +--------+ - /----*-------------------------------->5 | - | | | - | /----------------------------------->4 | - | | | | - | | /--------------------------------->3 1of5 | +---+ - | | | | mux >-->AMP>--> ADC L - | | | /------------------------------->2 | +-^-+ - | | | | | | | - Line | | | | +----+ +------+ +---+ /---->1 | r3b3-0 - ------------*->mute>--> Gain >--> | | | | - L | | | +----+ +------+ | | | *->0 | - | | | | | | +---^----+ - Aux2 | | | +----+ +------+ | | | | - ----------*--->mute>--> Gain >--> M | | r8b0-2 - L | | +----+ +------+ | | | - | | | | \------\ - Aux1 | | +----+ +------+ | | | - --------*----->mute>--> Gain >--> I | | - L | +----+ +------+ | | | - | | | | - | +----+ +------+ | | +---+ | - *------->mute>--> Gain >--> X >-->AMP>--* - | +----+ +------+ | | +-^-+ | - | | | | | - | +----+ +------+ | | r2b1-3 | - | /----->mute>--> Gain >--> E | | - | | +----+ +------+ | | | - | | | | | - | | +----+ +------+ | | | - | | /--->mute>--> Gain >--> R | | - | | | +----+ +------+ | | | - | | | | | | r9b8-9 - | | | +----+ +------+ | | | | - | | | /->mute>--> Gain >--> | | +---v---+ - | | | | +----+ +------+ +---+ /-*->0 | - DAC | | | | | | | - ------------*----------------------------------->? | +----+ - L | | | | | Mux >-->mute>--> L output - | | | | /->? | +--^-+ - | | | | | | | | - | | | /--------->? | r0b0 - | | | | | | +-------+ - | | | | | | - Mono | | | | | | +-------+ - ----------* | \---> | +----+ - | | | | | | Mix >-->mute>--> Mono output - | | | | *-> | +--^-+ - | | | | | +-------+ | - | | | | | r1b0 - DAC | | | | | +-------+ - ------------*-------------------------*--------->1 | +----+ - R | | | | | | Mux >-->mute>--> R output - | | | | +----+ +------+ +---+ *->0 | +--^-+ - | | | \->mute>--> Gain >--> | | +---^---+ | - | | | +----+ +------+ | | | | r5b0 - | | | | | | r6b0 - | | | +----+ +------+ | | | - | | \--->mute>--> Gain >--> M | | - | | +----+ +------+ | | | - | | | | | - | | +----+ +------+ | | | - | *----->mute>--> Gain >--> I | | - | | +----+ +------+ | | | - | | | | | - | | +----+ +------+ | | +---+ | - \------->mute>--> Gain >--> X >-->AMP>--* - | +----+ +------+ | | +-^-+ | - /--/ | | | | - Aux1 | +----+ +------+ | | r6b1-3 | - -------*------>mute>--> Gain >--> E | | - R | | +----+ +------+ | | | - | | | | | - Aux2 | | +----+ +------+ | | /------/ - ---------*---->mute>--> Gain >--> R | | - R | | | +----+ +------+ | | | - | | | | | | +--------+ - Line | | | +----+ +------+ | | | *->0 | - -----------*-->mute>--> Gain >--> | | | | - R | | | | +----+ +------+ +---+ \---->1 | - | | | | | | - | | | \-------------------------------->2 | +---+ - | | | | Mux >-->AMP>--> ADC R - | | \---------------------------------->3 | +-^-+ - | | | | | - | \------------------------------------>4 | r7b3-0 - | | | - \-----*-------------------------------->5 | - | +---^----+ - r6b4-5 | | - | | r8b3-5 - +--v---+ | - -->PreAmp>-/ - +------+ - MIC R (electret mic) diff --git a/Documentation/sound/oss/btaudio b/Documentation/sound/oss/btaudio deleted file mode 100644 index effdb9a3f898..000000000000 --- a/Documentation/sound/oss/btaudio +++ /dev/null @@ -1,92 +0,0 @@ - -Intro -===== - -people start bugging me about this with questions, looks like I -should write up some documentation for this beast. That way I -don't have to answer that much mails I hope. Yes, I'm lazy... - - -You might have noticed that the bt878 grabber cards have actually -_two_ PCI functions: - -$ lspci -[ ... ] -00:0a.0 Multimedia video controller: Brooktree Corporation Bt878 (rev 02) -00:0a.1 Multimedia controller: Brooktree Corporation Bt878 (rev 02) -[ ... ] - -The first does video, it is backward compatible to the bt848. The second -does audio. btaudio is a driver for the second function. It's a sound -driver which can be used for recording sound (and _only_ recording, no -playback). As most TV cards come with a short cable which can be plugged -into your sound card's line-in you probably don't need this driver if all -you want to do is just watching TV... - - -Driver Status -============= - -Still somewhat experimental. The driver should work stable, i.e. it -should'nt crash your box. It might not work as expected, have bugs, -not being fully OSS API compliant, ... - -Latest versions are available from http://bytesex.org/bttv/, the -driver is in the bttv tarball. Kernel patches might be available too, -have a look at http://bytesex.org/bttv/listing.html. - -The chip knows two different modes. btaudio registers two dsp -devices, one for each mode. They can not be used at the same time. - - -Digital audio mode -================== - -The chip gives you 16 bit stereo sound. The sample rate depends on -the external source which feeds the bt878 with digital sound via I2S -interface. There is a insmod option (rate) to tell the driver which -sample rate the hardware uses (32000 is the default). - -One possible source for digital sound is the msp34xx audio processor -chip which provides digital sound via I2S with 32 kHz sample rate. My -Hauppauge board works this way. - -The Osprey-200 reportly gives you digital sound with 44100 Hz sample -rate. It is also possible that you get no sound at all. - - -analog mode (A/D) -================= - -You can tell the driver to use this mode with the insmod option "analog=1". -The chip has three analog inputs. Consequently you'll get a mixer device -to control these. - -The analog mode supports mono only. Both 8 + 16 bit. Both are _signed_ -int, which is uncommon for the 8 bit case. Sample rate range is 119 kHz -to 448 kHz. Yes, the number of digits is correct. The driver supports -downsampling by powers of two, so you can ask for more usual sample rates -like 44 kHz too. - -With my Hauppauge I get noisy sound on the second input (mapped to line2 -by the mixer device). Others get a useable signal on line1. - - -some examples -============= - -* read audio data from btaudio (dsp2), send to es1730 (dsp,dsp1): - $ sox -w -r 32000 -t ossdsp /dev/dsp2 -t ossdsp /dev/dsp - -* read audio data from btaudio, send to esound daemon (which might be - running on another host): - $ sox -c 2 -w -r 32000 -t ossdsp /dev/dsp2 -t sw - | esdcat -r 32000 - $ sox -c 1 -w -r 32000 -t ossdsp /dev/dsp2 -t sw - | esdcat -m -r 32000 - - -Have fun, - - Gerd - --- -Gerd Knorr diff --git a/Documentation/sound/oss/mwave b/Documentation/sound/oss/mwave deleted file mode 100644 index 5fbcb1609275..000000000000 --- a/Documentation/sound/oss/mwave +++ /dev/null @@ -1,185 +0,0 @@ - How to try to survive an IBM Mwave under Linux SB drivers - - -+ IBM have now released documentation of sorts and Torsten is busy - trying to make the Mwave work. This is not however a trivial task. - ----------------------------------------------------------------------------- - -OK, first thing - the IRQ problem IS a problem, whether the test is bypassed or -not. It is NOT a Linux problem, but an MWAVE problem that is fixed with the -latest MWAVE patches. So, in other words, don't bypass the test for MWAVES! - -I have Windows 95 on /dev/hda1, swap on /dev/hda2, and Red Hat 5 on /dev/hda3. - -The steps, then: - - Boot to Linux. - Mount Windows 95 file system (assume mount point = /dos95). - mkdir /dos95/linux - mkdir /dos95/linux/boot - mkdir /dos95/linux/boot/parms - - Copy the kernel, any initrd image, and loadlin to /dos95/linux/boot/. - - Reboot to Windows 95. - - Edit C:/msdos.sys and add or change the following: - - Logo=0 - BootGUI=0 - - Note that msdos.sys is a text file but it needs to be made 'unhidden', - readable and writable before it can be edited. This can be done with - DOS' "attrib" command. - - Edit config.sys to have multiple config menus. I have one for windows 95 and - five for Linux, like this: ------------- -[menu] -menuitem=W95, Windows 95 -menuitem=LINTP, Linux - ThinkPad -menuitem=LINTP3, Linux - ThinkPad Console -menuitem=LINDOC, Linux - Docked -menuitem=LINDOC3, Linux - Docked Console -menuitem=LIN1, Linux - Single User Mode -REM menudefault=W95,10 - -[W95] - -[LINTP] - -[LINDOC] - -[LINTP3] - -[LINDOC3] - -[LIN1] - -[COMMON] -FILES=30 -REM Please read README.TXT in C:\MWW subdirectory before changing the DOS= statement. -DOS=HIGH,UMB -DEVICE=C:\MWW\MANAGER\MWD50430.EXE -SHELL=c:\command.com /e:2048 -------------------- - -The important things are the SHELL and DEVICE statements. - - Then change autoexec.bat. Basically everything in there originally should be - done ONLY when Windows 95 is booted. Then you add new things specifically - for Linux. Mine is as follows - ---------------- -@ECHO OFF -if "%CONFIG%" == "W95" goto W95 - -REM -REM Linux stuff -REM -SET MWPATH=C:\MWW\DLL;C:\MWW\MWGAMES;C:\MWW\DSP -SET BLASTER=A220 I5 D1 -SET MWROOT=C:\MWW -SET LIBPATH=C:\MWW\DLL -SET PATH=C:\WINDOWS;C:\MWW\DLL; -CALL MWAVE START NOSHOW -c:\linux\boot\loadlin.exe @c:\linux\boot\parms\%CONFIG%.par - -:W95 -REM -REM Windows 95 stuff -REM -c:\toolkit\guard -SET MSINPUT=C:\MSINPUT -SET MWPATH=C:\MWW\DLL;C:\MWW\MWGAMES;C:\MWW\DSP -REM The following is used by DOS games to recognize Sound Blaster hardware. -REM If hardware settings are changed, please change this line as well. -REM See the Mwave README file for instructions. -SET BLASTER=A220 I5 D1 -SET MWROOT=C:\MWW -SET LIBPATH=C:\MWW\DLL -SET PATH=C:\WINDOWS;C:\WINDOWS\COMMAND;E:\ORAWIN95\BIN;f:\msdev\bin;e:\v30\bin.dbg;v:\devt\v30\bin;c:\JavaSDK\Bin;C:\MWW\DLL; -SET INCLUDE=f:\MSDEV\INCLUDE;F:\MSDEV\MFC\INCLUDE -SET LIB=F:\MSDEV\LIB;F:\MSDEV\MFC\LIB -win - ------------------------- - -Now build a file in c:\linux\boot\parms for each Linux config that you have. - -For example, my LINDOC3 config is for a docked Thinkpad at runlevel 3 with no -initrd image, and has a parameter file named LINDOC3.PAR in c:\linux\boot\parms: - ------------------------ -# LOADLIN @param_file image=other_image root=/dev/other -# -# Linux Console in docking station -# -c:\linux\boot\zImage.krn # First value must be filename of Linux kernel. -root=/dev/hda3 # device which gets mounted as root FS -ro # Other kernel arguments go here. -apm=off -doc=yes -3 ------------------------ - -The doc=yes parameter is an environment variable used by my init scripts, not -a kernel argument. - -However, the apm=off parameter IS a kernel argument! APM, at least in my setup, -causes the kernel to crash when loaded via loadlin (but NOT when loaded via -LILO). The APM stuff COULD be forced out of the kernel via the kernel compile -options. Instead, I got an unofficial patch to the APM drivers that allows them -to be dynamically deactivated via kernel arguments. Whatever you chose to -document, APM, it seems, MUST be off for setups like mine. - -Now make sure C:\MWW\MWCONFIG.REF looks like this: - ----------------------- -[NativeDOS] -Default=SB1.5 -SBInputSource=CD -SYNTH=FM -QSound=OFF -Reverb=OFF -Chorus=OFF -ReverbDepth=5 -ChorusDepth=5 -SBInputVolume=5 -SBMainVolume=10 -SBWaveVolume=10 -SBSynthVolume=10 -WaveTableVolume=10 -AudioPowerDriver=ON - -[FastCFG] -Show=No -HideOption=Off ------------------------------ - -OR the Default= line COULD be - -Default=SBPRO - -Reboot to Windows 95 and choose Linux. When booted, use sndconfig to configure -the sound modules and voilà - ThinkPad sound with Linux. - -Now the gotchas - you can either have CD sound OR Mixers but not both. That's a -problem with the SB1.5 (CD sound) or SBPRO (Mixers) settings. No one knows why -this is! - -For some reason MPEG3 files, when played through mpg123, sound like they -are playing at 1/8th speed - not very useful! If you have ANY insight -on why this second thing might be happening, I would be grateful. - -=========================================================== - _/ _/_/_/_/ - _/_/ _/_/ _/ - _/ _/_/ _/_/_/_/ Martin John Bartlett - _/ _/ _/ _/ (martin@nitram.demon.co.uk) -_/ _/_/_/_/ - _/ -_/ _/ - _/_/ -=========================================================== diff --git a/Documentation/sound/oss/oss-parameters.txt b/Documentation/sound/oss/oss-parameters.txt deleted file mode 100644 index cc675f25eee4..000000000000 --- a/Documentation/sound/oss/oss-parameters.txt +++ /dev/null @@ -1,51 +0,0 @@ - OSS Kernel Parameters - ~~~~~~~~~~~~~~~~~~~~~ - -See Documentation/admin-guide/kernel-parameters.rst for general information on -specifying module parameters. - -This document may not be entirely up to date and comprehensive. The command -"modinfo -p ${modulename}" shows a current list of all parameters of a loadable -module. Loadable modules, after being loaded into the running kernel, also -reveal their parameters in /sys/module/${modulename}/parameters/. Some of these -parameters may be changed at runtime by the command -"echo -n ${value} > /sys/module/${modulename}/parameters/${parm}". - - - ad1848= [HW,OSS] - Format: ,,,, - - aedsp16= [HW,OSS] Audio Excel DSP 16 - Format: ,,,,, - See also header of sound/oss/aedsp16.c. - - dmasound= [HW,OSS] Sound subsystem buffers - - mpu401= [HW,OSS] - Format: , - - opl3= [HW,OSS] - Format: - - pas2= [HW,OSS] Format: - ,,,,,,, - - pss= [HW,OSS] Personal Sound System (ECHO ESC614) - Format: - ,,,,, - - sscape= [HW,OSS] - Format: ,,,, - - trix= [HW,OSS] MediaTrix AudioTrix Pro - Format: - ,,,,,,,, - - uart401= [HW,OSS] - Format: , - - uart6850= [HW,OSS] - Format: , - - waveartist= [HW,OSS] - Format: ,,, diff --git a/Documentation/sound/oss/ultrasound b/Documentation/sound/oss/ultrasound deleted file mode 100644 index eed331c738a3..000000000000 --- a/Documentation/sound/oss/ultrasound +++ /dev/null @@ -1,30 +0,0 @@ -modprobe sound -insmod ad1848 -insmod gus io=* irq=* dma=* ... - -This loads the driver for the Gravis Ultrasound family of sound cards. - -The gus module takes the following arguments - -io I/O address of the Ultrasound card (eg. io=0x220) -irq IRQ of the Sound Blaster card -dma DMA channel for the Sound Blaster -dma16 2nd DMA channel, only needed for full duplex operation -type 1 for PnP card -gus16 1 for using 16 bit sampling daughter board -no_wave_dma Set to disable DMA usage for wavetable (see note) -db16 ??? - - -no_wave_dma option - -This option defaults to a value of 0, which allows the Ultrasound wavetable -DSP to use DMA for playback and downloading samples. This is the same -as the old behaviour. If set to 1, no DMA is needed for downloading samples, -and allows owners of a GUS MAX to make use of simultaneous digital audio -(/dev/dsp), MIDI, and wavetable playback. - - -If you have problems in recording with GUS MAX, you could try to use -just one 8 bit DMA channel. Recording will not work with one DMA -channel if it's a 16 bit one. diff --git a/MAINTAINERS b/MAINTAINERS index 2d3d750b19c0..01f0b76dcc06 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -527,11 +527,6 @@ W: http://ez.analog.com/community/linux-device-drivers S: Supported F: drivers/input/misc/adxl34x.c -AEDSP16 DRIVER -M: Riccardo Facchetti -S: Maintained -F: sound/oss/aedsp16.c - AF9013 MEDIA DRIVER M: Antti Palosaari L: linux-media@vger.kernel.org @@ -9199,12 +9194,6 @@ F: include/linux/dt-bindings/mux/ F: include/linux/mux/ F: drivers/mux/ -MULTISOUND SOUND DRIVER -M: Andrew Veliath -S: Maintained -F: Documentation/sound/oss/MultiSound -F: sound/oss/msnd* - MULTITECH MULTIPORT CARD (ISICOM) S: Orphan F: drivers/tty/isicom.c diff --git a/sound/Kconfig b/sound/Kconfig index d7d2aac9542e..b6d047985905 100644 --- a/sound/Kconfig +++ b/sound/Kconfig @@ -3,25 +3,7 @@ menuconfig SOUND depends on HAS_IOMEM help If you have a sound card in your computer, i.e. if it can say more - than an occasional beep, say Y. Be sure to have all the information - about your sound card and its configuration down (I/O port, - interrupt and DMA channel), because you will be asked for it. - - You want to read the Sound-HOWTO, available from - . General information about - the modular sound system is contained in the files - . The file - contains some slightly - outdated but still useful information as well. Newer sound - driver documentation is found in . - - If you have a PnP sound card and you want to configure it at boot - time using the ISA PnP tools (read - ), then you need to - compile the sound card support as a module and load that module - after the PnP configuration is finished. To do this, choose M here - and read ; the module - will be called soundcore. + than an occasional beep, say Y. if SOUND @@ -114,19 +96,6 @@ source "sound/synth/Kconfig" endif # SND -menuconfig SOUND_PRIME - tristate "Open Sound System (DEPRECATED)" - select SOUND_OSS_CORE - depends on BROKEN - help - Say 'Y' or 'M' to enable Open Sound System drivers. - -if SOUND_PRIME - -source "sound/oss/Kconfig" - -endif # SOUND_PRIME - endif # !UML endif # SOUND diff --git a/sound/Makefile b/sound/Makefile index 6de45d2c32f7..e5794fdd3d79 100644 --- a/sound/Makefile +++ b/sound/Makefile @@ -2,8 +2,7 @@ # obj-$(CONFIG_SOUND) += soundcore.o -obj-$(CONFIG_SOUND_PRIME) += oss/ -obj-$(CONFIG_DMASOUND) += oss/ +obj-$(CONFIG_DMASOUND) += oss/dmasound/ obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \ firewire/ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/ hda/ x86/ obj-$(CONFIG_SND_AOA) += aoa/ diff --git a/sound/oss/CHANGELOG b/sound/oss/CHANGELOG deleted file mode 100644 index 8706cd66ca1f..000000000000 --- a/sound/oss/CHANGELOG +++ /dev/null @@ -1,369 +0,0 @@ -Note these changes relate to Hannu's code and don't include the changes -made outside of this for modularising the sound - -Changelog for version 3.8o --------------------------- - -Since 3.8h -- Included support for OPL3-SA1 and SoftOSS - -Since 3.8 -- Fixed SNDCTL_DSP_GETOSPACE -- Compatibility fixes for Linux 2.1.47 - -Since 3.8-beta21 -- Fixed all known bugs (I think). - -Since 3.8-beta8 -- Lot of fixes to audio playback code in dmabuf.c - -Since 3.8-beta6 -- Fixed the famous Quake delay bug. - -Since 3.8-beta5 -- Fixed many bugs in audio playback. - -Since 3.8-beta4 -- Just minor changes. - -Since 3.8-beta1 -- Major rewrite of audio playback handling. -- Added AWE32 support by Takashi Iwai (in ./lowlevel/). - -Since 3.7-beta# -- Passing of ioctl() parameters between soundcard.c and other modules has been -changed so that arg always points to kernel space. -- Some bugfixes. - -Since 3.7-beta5 -- Disabled MIDI input with GUS PnP (Interwave). There seems to be constant -stream of received 0x00 bytes when the MIDI receiver is enabled. - -Since 3.5 -- Changes almost everywhere. -- Support for OPTi 82C924-based sound cards. - -Since 3.5.4-beta8 -- Fixed a bug in handling of non-fragment sized writes in 16 bit/stereo mode - with GUS. -- Limited minimum fragment size with some audio devices (GUS=512 and - SB=32). These devices require more time to "recover" from processing - of each fragment. - -Since 3.5.4-beta6/7 -- There seems to be problems in the OPTi 82C930 so cards based on this - chip don't necessarily work yet. There are problems in detecting the - MIDI interface. Also mixer volumes may be seriously wrong on some systems. - You can safely use this driver version with C930 if it looks to work. - However please don't complain if you have problems with it. C930 support - should be fixed in future releases. -- Got initialization of GUS PnP to work. With this version GUS PnP should - work in GUS compatible mode after initialization using isapnptools. -- Fixed a bug in handling of full duplex cards in write only mode. This has - been causing "audio device opening" errors with RealAudio player. - -Since 3.5.4.beta5 -- Changes to OPTi 82C930 driver. -- Major changes to the Soundscape driver. The driver requires now just one - DMA channel. The extra audio/dsp device (the "Not functional" one) used - for code download in the earlier versions has been eliminated. There is now - just one /dev/dsp# device which is used both for code download and audio. - -Since 3.5.4.beta4 -- Minor changes. - -Since 3.5.4-beta2 -- Fixed silent playback with ESS 688/1688. -- Got SB16 to work without the 16 bit DMA channel (only the 8 bit one - is required for 8 and 16 bit modes). -- Added the "lowlevel" subdirectory for additional low level drivers that - are not part of USS core. See lowlevel/README for more info. -- Included support for ACI mixer (by Markus Kuhn). ACI is a mixer used in - miroPCM sound cards. See lowlevel/aci.readme for more info. -- Support for Aztech Washington chipset (AZT2316 ASIC). - -Since 3.5.4-beta1 -- Reduced clicking with AD1848. -- Support for OPTi 82C930. Only half duplex at this time. 16 bit playback - is sometimes just white noise (occurs randomly). - -Since 3.5.2 -- Major changes to the SB/Jazz16/ESS driver (most parts rewritten). - The most noticeable new feature is support for multiple SB cards at the same - time. -- Renamed sb16_midi.c to uart401.c. Also modified it to work also with - other MPU401 UART compatible cards than SB16/ESS/Jazz. -- Some changes which reduce clicking in audio playback. -- Copying policy is now GPL. - -Since 3.5.1 -- TB Maui initialization support -Since 3.5 -- Improved handling of playback underrun situations. - -Since 3.5-beta10 -- Bug fixing - -Since 3.5-beta9 -- Fixed for compatibility with Linux 1.3.70 and later. -- Changed boot time passing of 16 bit DMA channel number to SB driver. - -Since 3.5-beta8 -- Minor changes - -Since 3.5-beta7 -- enhancements to configure program (by Jeff Tranter): - - prompts are in same format as 1.3.x Linux kernel config program - - on-line help for each question - - fixed some compile warnings detected by gcc/g++ -Wall - - minor grammatical changes to prompts - -Since 3.5-beta6 -- Fixed bugs in mmap() support. -- Minor changes to Maui driver. - -Since 3.5-beta5 -- Fixed crash after recording with ESS688. It's generally a good - idea to stop inbound DMA transfers before freeing the memory - buffer. -- Fixed handling of AD1845 codec (for example Shuttle Sound System). -- Few other fixes. - -Since 3.5-beta4 -- Fixed bug in handling of uninitialized instruments with GUS. - -Since 3.5-beta3 -- Few changes which decrease popping at end/beginning of audio playback. - -Since 3.5-beta2 -- Removed MAD16+CS4231 hack made in previous version since it didn't - help. -- Fixed the above bug in proper way and in proper place. Many thanks - to James Hightower. - -Since 3.5-beta1 -- Bug fixes. -- Full duplex audio with MAD16+CS4231 may work now. The driver configures - SB DMA of MAD16 so that it doesn't conflict with codec's DMA channels. - The side effect is that all 8 bit DMA channels (0,1,3) are populated in - duplex mode. - -Since 3.5-alpha9 -- Bug fixes (mostly in Jazz16 and ESS1688/688 supports). -- Temporarily disabled recording with ESS1688/688 since it causes crash. -- Changed audio buffer partitioning algorithm so that it selects - smaller fragment size than earlier. This improves real time capabilities - of the driver and makes recording to disk to work better. Unfortunately - this change breaks some programs which assume that fragments cannot be - shorter than 4096 bytes. - -Since 3.5-alpha8 -- Bug fixes - -Since 3.5-alpha7 -- Linux kernel compatible configuration (_EXPERIMENTAL_). Enable - using command "cd /linux/drivers/sound;make script" and then - just run kernel's make config normally. -- Minor fixes to the SB support. Hopefully the driver works with - all SB models now. -- Added support for ESS ES1688 "AudioDrive" based cards. - -Since 3.5-alpha6 -- SB Pro and SB16 supports are no longer separately selectable options. - Enabling SB enables them too. -- Changed all #ifndef EXCLUDE_xx stuff to #ifdef CONFIG_xx. Modified -configure to handle this. -- Removed initialization messages from the -modularized version. They can be enabled by using init_trace=1 in -the insmod command line (insmod sound init_trace=1). -- More AIX stuff. -- Added support for synchronizing dsp/audio devices with /dev/sequencer. -- mmap() support for dsp/audio devices. - -Since 3.5-alpha5 -- AIX port. -- Changed some xxx_PATCH macros in soundcard.h to work with - big endian machines. - -Since 3.5-alpha4 -- Removed the 'setfx' stuff from the version distributed with kernel - sources. Running 'setfx' is required again. - -Since 3.5-alpha3 -- Moved stuff from the 'setfx' program to the AudioTrix Pro driver. - -Since 3.5-alpha2 -- Modifications to makefile and configure.c. Unnecessary sources - are no longer compiled. Newly created local.h is also copied to - /etc/soundconf. "make oldconfig" reads /etc/soundconf and produces - new local.h which is compatible with current version of the driver. -- Some fixes to the SB16 support. -- Fixed random protection fault in gus_wave.c - -Since 3.5-alpha1 -- Modified to work with Linux-1.3.33 and later -- Some minor changes - -Since 3.0.2 -- Support for CS4232 based PnP cards (AcerMagic S23 etc). -- Full duplex support for some CS4231, CS4232 and AD1845 based cards -(GUS MAX, AudioTrix Pro, AcerMagic S23 and many MAD16/Mozart cards -having a codec mentioned above). -- Almost fully rewritten loadable modules support. -- Fixed some bugs. -- Huge amount of testing (more testing is still required). -- mmap() support (works with some cards). Requires much more testing. -- Sample/patch/program loading for TB Maui/Tropez. No initialization -since TB doesn't allow me to release that code. -- Using CS4231 compatible codecs as timer for /dev/music. - -Since 3.0.1 -- Added allocation of I/O ports, DMA channels and interrupts -to the initialization code. This may break modules support since -the driver may not free some resources on unload. Should be fixed soon. - -Since 3.0 -- Some important bug fixes. -- select() for /dev/dsp and /dev/audio (Linux only). -(To use select() with read, you have to call read() to start -the recording. Calling write() kills recording immediately so -use select() carefully when you are writing a half duplex app. -Full duplex mode is not implemented yet.) Select works also with -/dev/sequencer and /dev/music. Maybe with /dev/midi## too. - -Since 3.0-beta2 -- Minor fixes. -- Added Readme.cards - -Since 3.0-beta1 -- Minor fixes to the modules support. -- Eliminated call to sb_free_irq() in ad1848.c -- Rewritten MAD16&Mozart support (not tested with MAD16 Pro). -- Fix to DMA initialization of PSS cards. -- Some fixes to ad1848/cs42xx mixer support (GUS MAX, MSS, etc.) -- Fixed some bugs in the PSS driver which caused I/O errors with - the MSS mode (/dev/dsp). - -Since 3.0-950506 -- Recording with GUS MAX fixed. It works when the driver is configured - to use two DMA channels with GUS MAX (16 bit ones recommended). - -Since 3.0-94xxxx -- Too many changes - -Since 3.0-940818 -- Fixes for Linux 1.1.4x. -- Disables Disney Sound System with SG NX Pro 16 (less noise). - -Since 2.90-2 -- Fixes to soundcard.h -- Non blocking mode to /dev/sequencer -- Experimental detection code for Ensoniq Soundscape. - -Since 2.90 -- Minor and major bug fixes - -Since pre-3.0-940712 -- GUS MAX support -- Partially working MSS/WSS support (could work with some cards). -- Hardware u-Law and A-Law support with AD1848/CS4248 and CS4231 codecs - (GUS MAX, GUS16, WSS etc). Hardware ADPCM is possible with GUS16 and - GUS MAX, but it doesn't work yet. -Since pre-3.0-940426 -- AD1848/CS4248/CS4231 codec support (MSS, GUS MAX, Aztec, Orchid etc). -This codec chip is used in various sound cards. This version is developed -for the 16 bit daughtercard of GUS. It should work with other cards also -if the following requirements are met: - - The I/O, IRQ and DMA settings are jumper selectable or - the card is initialized by booting DOS before booting Linux (etc.). - - You add the IO, IRQ and DMA settings manually to the local.h. - (Just define GUS16_BASE, GUS16_IRQ and GUS16_DMA). Note that - the base address bust be the base address of the codec chip not the - card itself. For the GUS16 these are the same but most MSS compatible - cards have the codec located at card_base+4. -- Some minor changes - -Since 2.5 (******* MAJOR REWRITE ***********) - -This version is based on v2.3. I have tried to maintain two versions -together so that this one should have the same features than v2.5. -Something may still be missing. If you notice such things, please let me -know. - -The Readme.v30 contains more details. - -- /dev/midi## devices. -- /dev/sequencer2 - -Since 2.5-beta2 -- Some fine tuning to the GUS v3.7 mixer code. -- Fixed speed limits for the plain SB (1.0 to 2.0). - -Since 2.5-beta -- Fixed OPL-3 detection with SB. Caused problems with PAS16. -- GUS v3.7 mixer support. - -Since 2.4 -- Mixer support for Sound Galaxy NX Pro (define __SGNXPRO__ on your local.h). -- Fixed truncated sound on /dev/dsp when the device is closed. -- Linear volume mode for GUS -- Pitch bends larger than +/- 2 octaves. -- MIDI recording for SB and SB Pro. (Untested). -- Some other fixes. -- SB16 MIDI and DSP drivers only initialized if SB16 actually installed. -- Implemented better detection for OPL-3. This should be useful if you - have an old SB Pro (the non-OPL-3 one) or a SB 2.0 clone which has a OPL-3. -- SVR4.2 support by Ian Hartas. Initial ALPHA TEST version (untested). - -Since 2.3b -- Fixed bug which made it impossible to make long recordings to disk. - Recording was not restarted after a buffer overflow situation. -- Limited mixer support for GUS. -- Numerous improvements to the GUS driver by Andrew Robinson. Including - some click removal etc. - -Since 2.3 -- Fixed some minor bugs in the SB16 driver. - -Since 2.2b -- Full SB16 DSP support. 8/16 bit, mono/stereo -- The SCO and FreeBSD versions should be in sync now. There are some - problems with SB16 and GUS in the FreeBSD versions. - The DMA buffer allocation of the SCO version has been polished but - there could still be some problems. At least it hogs memory. - The DMA channel - configuration method used in the SCO/System is a hack. -- Support for the MPU emulation of the SB16. -- Some big arrays are now allocated boot time. This makes the BSS segment - smaller which makes it possible to use the full driver with - NetBSD. These arrays are not allocated if no suitable sound card is available. -- Fixed a bug in the compute_and_set_volume in gus_wave.c -- Fixed the too fast mono playback problem of SB Pro and PAS16. - -Since 2.2 -- Stereo recording for SB Pro. Somehow it was missing and nobody - had noticed it earlier. -- Minor polishing. -- Interpreting of boot time arguments (sound=) for Linux. -- Breakup of sb_dsp.c. Parts of the code has been moved to - sb_mixer.c and sb_midi.c - -Since 2.1 -- Preliminary support for SB16. - - The SB16 mixer is supported in its native mode. - - Digitized voice capability up to 44.1 kHz/8 bit/mono - (16 bit and stereo support coming in the next release). -- Fixed some bugs in the digitized voice driver for PAS16. -- Proper initialization of the SB emulation of latest PAS16 models. - -- Significantly improved /dev/dsp and /dev/audio support. - - Now supports half duplex mode. It's now possible to record and - playback without closing and reopening the device. - - It's possible to use smaller buffers than earlier. There is a new - ioctl(fd, SNDCTL_DSP_SUBDIVIDE, &n) where n should be 1, 2 or 4. - This call instructs the driver to use smaller buffers. The default - buffer size (0.5 to 1.0 seconds) is divided by n. Should be called - immediately after opening the device. - -Since 2.0 -Just cosmetic changes. diff --git a/sound/oss/Kconfig b/sound/oss/Kconfig deleted file mode 100644 index 4033fe58f0cf..000000000000 --- a/sound/oss/Kconfig +++ /dev/null @@ -1,533 +0,0 @@ -# 18 Apr 1998, Michael Elizabeth Chastain, -# More hacking for modularisation. -# -# Prompt user for primary drivers. - -config SOUND_BCM_CS4297A - tristate "Crystal Sound CS4297a (for Swarm)" - depends on SIBYTE_SWARM - help - The BCM91250A has a Crystal CS4297a on synchronous serial - port B (in addition to the DB-9 serial port). Say Y or M - here to enable the sound chip instead of the UART. Also - note that CONFIG_KGDB should not be enabled at the same - time, since it also attempts to use this UART port. - -config SOUND_MSNDCLAS - tristate "Support for Turtle Beach MultiSound Classic, Tahiti, Monterey" - depends on (m || !STANDALONE) && ISA - help - Say M here if you have a Turtle Beach MultiSound Classic, Tahiti or - Monterey (not for the Pinnacle or Fiji). - - See for important information - about this driver. Note that it has been discontinued, but the - Voyetra Turtle Beach knowledge base entry for it is still available - at . - -comment "Compiled-in MSND Classic support requires firmware during compilation." - depends on SOUND_PRIME && SOUND_MSNDCLAS=y - -config MSNDCLAS_HAVE_BOOT - bool - depends on SOUND_MSNDCLAS=y && !STANDALONE - default y - -config MSNDCLAS_INIT_FILE - string "Full pathname of MSNDINIT.BIN firmware file" - depends on SOUND_MSNDCLAS - default "/etc/sound/msndinit.bin" - help - The MultiSound cards have two firmware files which are required for - operation, and are not currently included. These files can be - obtained from Turtle Beach. See - for information on how to - obtain this. - -config MSNDCLAS_PERM_FILE - string "Full pathname of MSNDPERM.BIN firmware file" - depends on SOUND_MSNDCLAS - default "/etc/sound/msndperm.bin" - help - The MultiSound cards have two firmware files which are required for - operation, and are not currently included. These files can be - obtained from Turtle Beach. See - for information on how to - obtain this. - -config MSNDCLAS_IRQ - int "MSND Classic IRQ 5, 7, 9, 10, 11, 12" - depends on SOUND_MSNDCLAS=y - default "5" - help - Interrupt Request line for the MultiSound Classic and related cards. - -config MSNDCLAS_MEM - hex "MSND Classic memory B0000, C8000, D0000, D8000, E0000, E8000" - depends on SOUND_MSNDCLAS=y - default "D0000" - help - Memory-mapped I/O base address for the MultiSound Classic and - related cards. - -config MSNDCLAS_IO - hex "MSND Classic I/O 210, 220, 230, 240, 250, 260, 290, 3E0" - depends on SOUND_MSNDCLAS=y - default "290" - help - I/O port address for the MultiSound Classic and related cards. - -config SOUND_MSNDPIN - tristate "Support for Turtle Beach MultiSound Pinnacle, Fiji" - depends on (m || !STANDALONE) && ISA - help - Say M here if you have a Turtle Beach MultiSound Pinnacle or Fiji. - See for important information - about this driver. Note that it has been discontinued, but the - Voyetra Turtle Beach knowledge base entry for it is still available - at . - -comment "Compiled-in MSND Pinnacle support requires firmware during compilation." - depends on SOUND_PRIME && SOUND_MSNDPIN=y - -config MSNDPIN_HAVE_BOOT - bool - depends on SOUND_MSNDPIN=y - default y - -config MSNDPIN_INIT_FILE - string "Full pathname of PNDSPINI.BIN firmware file" - depends on SOUND_MSNDPIN - default "/etc/sound/pndspini.bin" - help - The MultiSound cards have two firmware files which are required - for operation, and are not currently included. These files can be - obtained from Turtle Beach. See - for information on how to - obtain this. - -config MSNDPIN_PERM_FILE - string "Full pathname of PNDSPERM.BIN firmware file" - depends on SOUND_MSNDPIN - default "/etc/sound/pndsperm.bin" - help - The MultiSound cards have two firmware files which are required for - operation, and are not currently included. These files can be - obtained from Turtle Beach. See - for information on how to - obtain this. - -config MSNDPIN_IRQ - int "MSND Pinnacle IRQ 5, 7, 9, 10, 11, 12" - depends on SOUND_MSNDPIN=y - default "5" - help - Interrupt request line for the primary synthesizer on MultiSound - Pinnacle and Fiji sound cards. - -config MSNDPIN_MEM - hex "MSND Pinnacle memory B0000, C8000, D0000, D8000, E0000, E8000" - depends on SOUND_MSNDPIN=y - default "D0000" - help - Memory-mapped I/O base address for the primary synthesizer on - MultiSound Pinnacle and Fiji sound cards. - -config MSNDPIN_IO - hex "MSND Pinnacle I/O 210, 220, 230, 240, 250, 260, 290, 3E0" - depends on SOUND_MSNDPIN=y - default "290" - help - Memory-mapped I/O base address for the primary synthesizer on - MultiSound Pinnacle and Fiji sound cards. - -config MSNDPIN_DIGITAL - bool "MSND Pinnacle has S/PDIF I/O" - depends on SOUND_MSNDPIN=y - help - If you have the S/PDIF daughter board for the Pinnacle or Fiji, - answer Y here; otherwise, say N. If you have this, you will be able - to play and record from the S/PDIF port (digital signal). See - for information on how to make - use of this capability. - -config MSNDPIN_NONPNP - bool "MSND Pinnacle non-PnP Mode" - depends on SOUND_MSNDPIN=y - help - The Pinnacle and Fiji card resources can be configured either with - PnP, or through a configuration port. Say Y here if your card is NOT - in PnP mode. For the Pinnacle, configuration in non-PnP mode allows - use of the IDE and joystick peripherals on the card as well; these - do not show up when the card is in PnP mode. Specifying zero for any - resource of a device will disable the device. If you are running the - card in PnP mode, you must say N here and use isapnptools to - configure the card's resources. - -comment "MSND Pinnacle DSP section will be configured to above parameters." - depends on SOUND_MSNDPIN=y && MSNDPIN_NONPNP - -config MSNDPIN_CFG - hex "MSND Pinnacle config port 250,260,270" - depends on MSNDPIN_NONPNP - default "250" - help - This is the port which the Pinnacle and Fiji uses to configure the - card's resources when not in PnP mode. If your card is in PnP mode, - then be sure to say N to the previous option, "MSND Pinnacle Non-PnP - Mode". - -comment "Pinnacle-specific Device Configuration (0 disables)" - depends on SOUND_MSNDPIN=y && MSNDPIN_NONPNP - -config MSNDPIN_MPU_IO - hex "MSND Pinnacle MPU I/O (e.g. 330)" - depends on MSNDPIN_NONPNP - default "0" - help - Memory-mapped I/O base address for the Kurzweil daughterboard - synthesizer on MultiSound Pinnacle and Fiji sound cards. - -config MSNDPIN_MPU_IRQ - int "MSND Pinnacle MPU IRQ (e.g. 9)" - depends on MSNDPIN_NONPNP - default "0" - help - Interrupt request number for the Kurzweil daughterboard - synthesizer on MultiSound Pinnacle and Fiji sound cards. - -config MSNDPIN_IDE_IO0 - hex "MSND Pinnacle IDE I/O 0 (e.g. 170)" - depends on MSNDPIN_NONPNP - default "0" - help - CD-ROM drive 0 memory-mapped I/O base address for the MultiSound - Pinnacle and Fiji sound cards. - -config MSNDPIN_IDE_IO1 - hex "MSND Pinnacle IDE I/O 1 (e.g. 376)" - depends on MSNDPIN_NONPNP - default "0" - help - CD-ROM drive 1 memory-mapped I/O base address for the MultiSound - Pinnacle and Fiji sound cards. - -config MSNDPIN_IDE_IRQ - int "MSND Pinnacle IDE IRQ (e.g. 15)" - depends on MSNDPIN_NONPNP - default "0" - help - Interrupt request number for the IDE CD-ROM interface on the - MultiSound Pinnacle and Fiji sound cards. - -config MSNDPIN_JOYSTICK_IO - hex "MSND Pinnacle joystick I/O (e.g. 200)" - depends on MSNDPIN_NONPNP - default "0" - help - Memory-mapped I/O base address for the joystick port on MultiSound - Pinnacle and Fiji sound cards. - -config MSND_FIFOSIZE - int "MSND buffer size (kB)" - depends on SOUND_MSNDPIN=y || SOUND_MSNDCLAS=y - default "128" - help - Configures the size of each audio buffer, in kilobytes, for - recording and playing in the MultiSound drivers (both the Classic - and Pinnacle). Larger values reduce the chance of data overruns at - the expense of overall latency. If unsure, use the default. - -menuconfig SOUND_OSS - tristate "OSS sound modules" - depends on ISA_DMA_API && (VIRT_TO_BUS || ARCH_RPC || ARCH_NETWINDER) - depends on !GENERIC_ISA_DMA_SUPPORT_BROKEN - help - OSS is the Open Sound System suite of sound card drivers. They make - sound programming easier since they provide a common API. Say Y or - M here (the module will be called sound) if you haven't found a - driver for your sound card above, then pick your driver from the - list below. - -if SOUND_OSS - -config SOUND_TRACEINIT - bool "Verbose initialisation" - help - Verbose soundcard initialization -- affects the format of autoprobe - and initialization messages at boot time. - -config SOUND_DMAP - bool "Persistent DMA buffers" - ---help--- - Linux can often have problems allocating DMA buffers for ISA sound - cards on machines with more than 16MB of RAM. This is because ISA - DMA buffers must exist below the 16MB boundary and it is quite - possible that a large enough free block in this region cannot be - found after the machine has been running for a while. If you say Y - here the DMA buffers (64Kb) will be allocated at boot time and kept - until the shutdown. This option is only useful if you said Y to - "OSS sound modules", above. If you said M to "OSS sound modules" - then you can get the persistent DMA buffer functionality by passing - the command-line argument "dmabuf=1" to the sound module. - - Say Y unless you have 16MB or more RAM or a PCI sound card. - -config SOUND_VMIDI - tristate "Loopback MIDI device support" - help - Support for MIDI loopback on port 1 or 2. - -config SOUND_TRIX - tristate "MediaTrix AudioTrix Pro support" - help - Answer Y if you have the AudioTriX Pro sound card manufactured - by MediaTrix. - -config TRIX_HAVE_BOOT - bool "Have TRXPRO.HEX firmware file" - depends on SOUND_TRIX=y && !STANDALONE - help - The MediaTrix AudioTrix Pro has an on-board microcontroller which - needs to be initialized by downloading the code from the file - TRXPRO.HEX in the DOS driver directory. If you don't have the - TRXPRO.HEX file handy you may skip this step. However, the SB and - MPU-401 modes of AudioTrix Pro will not work without this file! - -config TRIX_BOOT_FILE - string "Full pathname of TRXPRO.HEX firmware file" - depends on TRIX_HAVE_BOOT - default "/etc/sound/trxpro.hex" - help - Enter the full pathname of your TRXPRO.HEX file, starting from /. - -config SOUND_MSS - tristate "Microsoft Sound System support" - ---help--- - Again think carefully before answering Y to this question. It's - safe to answer Y if you have the original Windows Sound System card - made by Microsoft or Aztech SG 16 Pro (or NX16 Pro). Also you may - say Y in case your card is NOT among these: - - ATI Stereo F/X, AdLib, Audio Excell DSP16, Cardinal DSP16, - Ensoniq SoundScape (and compatibles made by Reveal and Spea), - Gravis Ultrasound, Gravis Ultrasound ACE, Gravis Ultrasound Max, - Gravis Ultrasound with 16 bit option, Logitech Sound Man 16, - Logitech SoundMan Games, Logitech SoundMan Wave, MAD16 Pro (OPTi - 82C929), Media Vision Jazz16, MediaTriX AudioTriX Pro, Microsoft - Windows Sound System (MSS/WSS), Mozart (OAK OTI-601), Orchid - SW32, Personal Sound System (PSS), Pro Audio Spectrum 16, Pro - Audio Studio 16, Pro Sonic 16, Roland MPU-401 MIDI interface, - Sound Blaster 1.0, Sound Blaster 16, Sound Blaster 16ASP, Sound - Blaster 2.0, Sound Blaster AWE32, Sound Blaster Pro, TI TM4000M - notebook, ThunderBoard, Turtle Beach Tropez, Yamaha FM - synthesizers (OPL2, OPL3 and OPL4), 6850 UART MIDI Interface. - - For cards having native support in VoxWare, consult the card - specific instructions in . - Some drivers have their own MSS support and saying Y to this option - will cause a conflict. - - If you compile the driver into the kernel, you have to add - "ad1848=,,,[,]" to the kernel command - line. - -config SOUND_MPU401 - tristate "MPU-401 support (NOT for SB16)" - ---help--- - Be careful with this question. The MPU401 interface is supported by - all sound cards. However, some natively supported cards have their - own driver for MPU401. Enabling this MPU401 option with these cards - will cause a conflict. Also, enabling MPU401 on a system that - doesn't really have a MPU401 could cause some trouble. If your card - was in the list of supported cards, look at the card specific - instructions in the file. It - is safe to answer Y if you have a true MPU401 MIDI interface card. - - If you compile the driver into the kernel, you have to add - "mpu401=," to the kernel command line. - -config SOUND_PAS - tristate "ProAudioSpectrum 16 support" - ---help--- - Answer Y only if you have a Pro Audio Spectrum 16, ProAudio Studio - 16 or Logitech SoundMan 16 sound card. Answer N if you have some - other card made by Media Vision or Logitech since those are not - PAS16 compatible. Please read . - It is not necessary to add Sound Blaster support separately; it - is included in PAS support. - - If you compile the driver into the kernel, you have to add - "pas2=,,,,,,, - to the kernel command line. - -config PAS_JOYSTICK - bool "Enable PAS16 joystick port" - depends on SOUND_PAS=y - help - Say Y here to enable the Pro Audio Spectrum 16's auxiliary joystick - port. - -config SOUND_PSS - tristate "PSS (AD1848, ADSP-2115, ESC614) support" - help - Answer Y or M if you have an Orchid SW32, Cardinal DSP16, Beethoven - ADSP-16 or some other card based on the PSS chipset (AD1848 codec + - ADSP-2115 DSP chip + Echo ESC614 ASIC CHIP). For more information on - how to compile it into the kernel or as a module see the file - . - - If you compile the driver into the kernel, you have to add - "pss=,,,,," to the kernel - command line. - -config PSS_MIXER - bool "Enable PSS mixer (Beethoven ADSP-16 and other compatible)" - depends on SOUND_PSS - help - Answer Y for Beethoven ADSP-16. You may try to say Y also for other - cards if they have master volume, bass, treble, and you can't - control it under Linux. If you answer N for Beethoven ADSP-16, you - can't control master volume, bass, treble and synth volume. - - If you said M to "PSS support" above, you may enable or disable this - PSS mixer with the module parameter pss_mixer. For more information - see the file . - -config PSS_HAVE_BOOT - bool "Have DSPxxx.LD firmware file" - depends on SOUND_PSS && !STANDALONE - help - If you have the DSPxxx.LD file or SYNTH.LD file for you card, say Y - to include this file. Without this file the synth device (OPL) may - not work. - -config PSS_BOOT_FILE - string "Full pathname of DSPxxx.LD firmware file" - depends on PSS_HAVE_BOOT - default "/etc/sound/dsp001.ld" - help - Enter the full pathname of your DSPxxx.LD file or SYNTH.LD file, - starting from /. - -config SOUND_SB - tristate "100% Sound Blaster compatibles (SB16/32/64, ESS, Jazz16) support" - ---help--- - Answer Y if you have an original Sound Blaster card made by Creative - Labs or a 100% hardware compatible clone (like the Thunderboard or - SM Games). For an unknown card you may answer Y if the card claims - to be Sound Blaster-compatible. - - Please read the file . - - You should also say Y here for cards based on the Avance Logic - ALS-007 and ALS-1X0 chips (read ) and - for cards based on ESS chips (read - and - ). If you have an IBM Mwave - card, say Y here and read . - - If you compile the driver into the kernel and don't want to use - isapnp, you have to add "sb=,,," to the kernel - command line. - - You can say M here to compile this driver as a module; the module is - called sb. - -config SOUND_YM3812 - tristate "Yamaha FM synthesizer (YM3812/OPL-3) support" - ---help--- - Answer Y if your card has a FM chip made by Yamaha (OPL2/OPL3/OPL4). - Answering Y is usually a safe and recommended choice, however some - cards may have software (TSR) FM emulation. Enabling FM support with - these cards may cause trouble (I don't currently know of any such - cards, however). Please read the file - if your card has an OPL3 chip. - - If you compile the driver into the kernel, you have to add - "opl3=" to the kernel command line. - - If unsure, say Y. - -config SOUND_UART6850 - tristate "6850 UART support" - help - This option enables support for MIDI interfaces based on the 6850 - UART chip. This interface is rarely found on sound cards. It's safe - to answer N to this question. - - If you compile the driver into the kernel, you have to add - "uart6850=," to the kernel command line. - -config SOUND_AEDSP16 - tristate "Gallant Audio Cards (SC-6000 and SC-6600 based)" - ---help--- - Answer Y if you have a Gallant's Audio Excel DSP 16 card. This - driver supports Audio Excel DSP 16 but not the III nor PnP versions - of this card. - - The Gallant's Audio Excel DSP 16 card can emulate either an SBPro or - a Microsoft Sound System card, so you should have said Y to either - "100% Sound Blaster compatibles (SB16/32/64, ESS, Jazz16) support" - or "Microsoft Sound System support", above, and you need to answer - the "MSS emulation" and "SBPro emulation" questions below - accordingly. You should say Y to one and only one of these two - questions. - - Read the file and the head of - as well as - to get more information - about this driver and its configuration. - -config SC6600 - bool "SC-6600 based audio cards (new Audio Excel DSP 16)" - depends on SOUND_AEDSP16 - help - The SC6600 is the new version of DSP mounted on the Audio Excel DSP - 16 cards. Find in the manual the FCC ID of your audio card and - answer Y if you have an SC6600 DSP. - -config SC6600_JOY - bool "Activate SC-6600 Joystick Interface" - depends on SC6600 - help - Say Y here in order to use the joystick interface of the Audio Excel - DSP 16 card. - -config SC6600_CDROM - int "SC-6600 CDROM Interface (4=None, 3=IDE, 1=Panasonic, 0=?Sony?)" - depends on SC6600 - default "4" - help - This is used to activate the CD-ROM interface of the Audio Excel - DSP 16 card. Enter: 0 for Sony, 1 for Panasonic, 2 for IDE, 4 for no - CD-ROM present. - -config SC6600_CDROMBASE - hex "SC-6600 CDROM Interface I/O Address" - depends on SC6600 - default "0" - help - Base I/O port address for the CD-ROM interface of the Audio Excel - DSP 16 card. - -config SOUND_VIDC - tristate "VIDC 16-bit sound" - depends on ARM && ARCH_ACORN - help - 16-bit support for the VIDC onboard sound hardware found on Acorn - machines. - -config SOUND_WAVEARTIST - tristate "Netwinder WaveArtist" - depends on ARM && ARCH_NETWINDER - help - Say Y here to include support for the Rockwell WaveArtist sound - system. This driver is mainly for the NetWinder. - -config SOUND_KAHLUA - tristate "XpressAudio Sound Blaster emulation" - depends on SOUND_SB - -endif # SOUND_OSS - diff --git a/sound/oss/Makefile b/sound/oss/Makefile deleted file mode 100644 index 9bdbbde2173e..000000000000 --- a/sound/oss/Makefile +++ /dev/null @@ -1,107 +0,0 @@ -# Makefile for the Linux sound card driver -# -# 18 Apr 1998, Michael Elizabeth Chastain, -# Rewritten to use lists instead of if-statements. - -# Each configuration option enables a list of files. - -obj-$(CONFIG_SOUND_OSS) += sound.o - -# Please leave it as is, cause the link order is significant ! - -obj-$(CONFIG_SOUND_AEDSP16) += aedsp16.o -obj-$(CONFIG_SOUND_PSS) += pss.o ad1848.o mpu401.o -obj-$(CONFIG_SOUND_TRIX) += trix.o ad1848.o sb_lib.o uart401.o -obj-$(CONFIG_SOUND_MSS) += ad1848.o -obj-$(CONFIG_SOUND_PAS) += pas2.o sb.o sb_lib.o uart401.o -obj-$(CONFIG_SOUND_SB) += sb.o sb_lib.o uart401.o -obj-$(CONFIG_SOUND_KAHLUA) += kahlua.o -obj-$(CONFIG_SOUND_MPU401) += mpu401.o -obj-$(CONFIG_SOUND_UART6850) += uart6850.o -obj-$(CONFIG_SOUND_YM3812) += opl3.o -obj-$(CONFIG_SOUND_VMIDI) += v_midi.o -obj-$(CONFIG_SOUND_VIDC) += vidc_mod.o -obj-$(CONFIG_SOUND_WAVEARTIST) += waveartist.o -obj-$(CONFIG_SOUND_MSNDCLAS) += msnd.o msnd_classic.o -obj-$(CONFIG_SOUND_MSNDPIN) += msnd.o msnd_pinnacle.o -obj-$(CONFIG_SOUND_BCM_CS4297A) += swarm_cs4297a.o - -obj-$(CONFIG_DMASOUND) += dmasound/ - -# Declare multi-part drivers. - -sound-objs := \ - dev_table.o soundcard.o \ - audio.o dmabuf.o \ - midi_synth.o midibuf.o \ - sequencer.o sound_timer.o sys_timer.o - -pas2-objs := pas2_card.o pas2_midi.o pas2_mixer.o pas2_pcm.o -sb-objs := sb_card.o -sb_lib-objs := sb_common.o sb_audio.o sb_midi.o sb_mixer.o sb_ess.o -vidc_mod-objs := vidc.o vidc_fill.o - -hostprogs-y := bin2hex hex2hex - -# Files generated that shall be removed upon make clean -clean-files := msndperm.c msndinit.c pndsperm.c pndspini.c \ - pss_boot.h trix_boot.h - -# Firmware files that need translation -# -# The translated files are protected by a file that keeps track -# of what name was used to build them. If the name changes, they -# will be forced to be remade. -# - -# Turtle Beach MultiSound - -ifeq ($(CONFIG_MSNDCLAS_HAVE_BOOT),y) - $(obj)/msnd_classic.o: $(obj)/msndperm.c $(obj)/msndinit.c - - $(obj)/msndperm.c: $(patsubst "%", %, $(CONFIG_MSNDCLAS_PERM_FILE)) $(obj)/bin2hex - $(obj)/bin2hex msndperm < $< > $@ - - $(obj)/msndinit.c: $(patsubst "%", %, $(CONFIG_MSNDCLAS_INIT_FILE)) $(obj)/bin2hex - $(obj)/bin2hex msndinit < $< > $@ -endif - -ifeq ($(CONFIG_MSNDPIN_HAVE_BOOT),y) - $(obj)/msnd_pinnacle.o: $(obj)/pndsperm.c $(obj)/pndspini.c - - $(obj)/pndsperm.c: $(patsubst "%", %, $(CONFIG_MSNDPIN_PERM_FILE)) $(obj)/bin2hex - $(obj)/bin2hex pndsperm < $< > $@ - - $(obj)/pndspini.c: $(patsubst "%", %, $(CONFIG_MSNDPIN_INIT_FILE)) $(obj)/bin2hex - $(obj)/bin2hex pndspini < $< > $@ -endif - -# PSS (ECHO-ADI2111) - -$(obj)/pss.o: $(obj)/pss_boot.h - -ifeq ($(CONFIG_PSS_HAVE_BOOT),y) - $(obj)/pss_boot.h: $(patsubst "%", %, $(CONFIG_PSS_BOOT_FILE)) $(obj)/bin2hex - $(obj)/bin2hex pss_synth < $< > $@ -else - $(obj)/pss_boot.h: - $(Q)( \ - echo 'static unsigned char * pss_synth = NULL;'; \ - echo 'static int pss_synthLen = 0;'; \ - ) > $@ -endif - -# MediaTrix AudioTrix Pro - -$(obj)/trix.o: $(obj)/trix_boot.h - -ifeq ($(CONFIG_TRIX_HAVE_BOOT),y) - $(obj)/trix_boot.h: $(patsubst "%", %, $(CONFIG_TRIX_BOOT_FILE)) $(obj)/hex2hex - $(obj)/hex2hex -i trix_boot < $< > $@ -else - $(obj)/trix_boot.h: - $(Q)( \ - echo 'static unsigned char * trix_boot = NULL;'; \ - echo 'static int trix_boot_len = 0;'; \ - ) > $@ -endif diff --git a/sound/oss/README.FIRST b/sound/oss/README.FIRST deleted file mode 100644 index 90fdcf063d2d..000000000000 --- a/sound/oss/README.FIRST +++ /dev/null @@ -1,6 +0,0 @@ -The modular sound driver patches were funded by Red Hat Software -(www.redhat.com). The sound driver here is thus a modified version of -Hannu's code. Please bear that in mind when considering the appropriate -forums for bug reporting. - -Alan Cox diff --git a/sound/oss/ad1848.c b/sound/oss/ad1848.c deleted file mode 100644 index 2421f59cf279..000000000000 --- a/sound/oss/ad1848.c +++ /dev/null @@ -1,3062 +0,0 @@ -/* - * sound/oss/ad1848.c - * - * The low level driver for the AD1848/CS4248 codec chip which - * is used for example in the MS Sound System. - * - * The CS4231 which is used in the GUS MAX and some other cards is - * upwards compatible with AD1848 and this driver is able to drive it. - * - * CS4231A and AD1845 are upward compatible with CS4231. However - * the new features of these chips are different. - * - * CS4232 is a PnP audio chip which contains a CS4231A (and SB, MPU). - * CS4232A is an improved version of CS4232. - * - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * general sleep/wakeup clean up. - * Alan Cox : reformatted. Fixed SMP bugs. Moved to kernel alloc/free - * of irqs. Use dev_id. - * Christoph Hellwig : adapted to module_init/module_exit - * Aki Laukkanen : added power management support - * Arnaldo C. de Melo : added missing restore_flags in ad1848_resume - * Miguel Freitas : added ISA PnP support - * Alan Cox : Added CS4236->4239 identification - * Daniel T. Cobra : Alernate config/mixer for later chips - * Alan Cox : Merged chip idents and config code - * - * TODO - * APM save restore assist code on IBM thinkpad - * - * Status: - * Tested. Believed fully functional. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "sound_config.h" - -#include "ad1848.h" -#include "ad1848_mixer.h" - -typedef struct -{ - spinlock_t lock; - int base; - int irq; - int dma1, dma2; - int dual_dma; /* 1, when two DMA channels allocated */ - int subtype; - unsigned char MCE_bit; - unsigned char saved_regs[64]; /* Includes extended register space */ - int debug_flag; - - int audio_flags; - int record_dev, playback_dev; - - int xfer_count; - int audio_mode; - int open_mode; - int intr_active; - char *chip_name, *name; - int model; -#define MD_1848 1 -#define MD_4231 2 -#define MD_4231A 3 -#define MD_1845 4 -#define MD_4232 5 -#define MD_C930 6 -#define MD_IWAVE 7 -#define MD_4235 8 /* Crystal Audio CS4235 */ -#define MD_1845_SSCAPE 9 /* Ensoniq Soundscape PNP*/ -#define MD_4236 10 /* 4236 and higher */ -#define MD_42xB 11 /* CS 42xB */ -#define MD_4239 12 /* CS4239 */ - - /* Mixer parameters */ - int recmask; - int supported_devices, orig_devices; - int supported_rec_devices, orig_rec_devices; - int *levels; - short mixer_reroute[32]; - int dev_no; - volatile unsigned long timer_ticks; - int timer_running; - int irq_ok; - mixer_ents *mix_devices; - int mixer_output_port; -} ad1848_info; - -typedef struct ad1848_port_info -{ - int open_mode; - int speed; - unsigned char speed_bits; - int channels; - int audio_format; - unsigned char format_bits; -} -ad1848_port_info; - -static struct address_info cfg; -static int nr_ad1848_devs; - -static bool deskpro_xl; -static bool deskpro_m; -static bool soundpro; - -#ifndef EXCLUDE_TIMERS -static int timer_installed = -1; -#endif - -static int loaded; - -static int ad_format_mask[13 /*devc->model */ ] = -{ - 0, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW, /* AD1845 */ - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE /* CS4235 */, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW /* Ensoniq Soundscape*/, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM -}; - -static ad1848_info adev_info[MAX_AUDIO_DEV]; - -#define io_Index_Addr(d) ((d)->base) -#define io_Indexed_Data(d) ((d)->base+1) -#define io_Status(d) ((d)->base+2) -#define io_Polled_IO(d) ((d)->base+3) - -static struct { - unsigned char flags; -#define CAP_F_TIMER 0x01 -} capabilities [10 /*devc->model */ ] = { - {0} - ,{0} /* MD_1848 */ - ,{CAP_F_TIMER} /* MD_4231 */ - ,{CAP_F_TIMER} /* MD_4231A */ - ,{CAP_F_TIMER} /* MD_1845 */ - ,{CAP_F_TIMER} /* MD_4232 */ - ,{0} /* MD_C930 */ - ,{CAP_F_TIMER} /* MD_IWAVE */ - ,{0} /* MD_4235 */ - ,{CAP_F_TIMER} /* MD_1845_SSCAPE */ -}; - -#ifdef CONFIG_PNP -static int isapnp = 1; -static int isapnpjump; -static bool reverse; - -static int audio_activated; -#else -static int isapnp; -#endif - - - -static int ad1848_open(int dev, int mode); -static void ad1848_close(int dev); -static void ad1848_output_block(int dev, unsigned long buf, int count, int intrflag); -static void ad1848_start_input(int dev, unsigned long buf, int count, int intrflag); -static int ad1848_prepare_for_output(int dev, int bsize, int bcount); -static int ad1848_prepare_for_input(int dev, int bsize, int bcount); -static void ad1848_halt(int dev); -static void ad1848_halt_input(int dev); -static void ad1848_halt_output(int dev); -static void ad1848_trigger(int dev, int bits); -static irqreturn_t adintr(int irq, void *dev_id); - -#ifndef EXCLUDE_TIMERS -static int ad1848_tmr_install(int dev); -static void ad1848_tmr_reprogram(int dev); -#endif - -static int ad_read(ad1848_info * devc, int reg) -{ - int x; - int timeout = 900000; - - while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */ - timeout--; - - if(reg < 32) - { - outb(((unsigned char) (reg & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); - x = inb(io_Indexed_Data(devc)); - } - else - { - int xreg, xra; - - xreg = (reg & 0xff) - 32; - xra = (((xreg & 0x0f) << 4) & 0xf0) | 0x08 | ((xreg & 0x10) >> 2); - outb(((unsigned char) (23 & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); - outb(((unsigned char) (xra & 0xff)), io_Indexed_Data(devc)); - x = inb(io_Indexed_Data(devc)); - } - - return x; -} - -static void ad_write(ad1848_info * devc, int reg, int data) -{ - int timeout = 900000; - - while (timeout > 0 && inb(devc->base) == 0x80) /* Are we initializing */ - timeout--; - - if(reg < 32) - { - outb(((unsigned char) (reg & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); - outb(((unsigned char) (data & 0xff)), io_Indexed_Data(devc)); - } - else - { - int xreg, xra; - - xreg = (reg & 0xff) - 32; - xra = (((xreg & 0x0f) << 4) & 0xf0) | 0x08 | ((xreg & 0x10) >> 2); - outb(((unsigned char) (23 & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); - outb(((unsigned char) (xra & 0xff)), io_Indexed_Data(devc)); - outb((unsigned char) (data & 0xff), io_Indexed_Data(devc)); - } -} - -static void wait_for_calibration(ad1848_info * devc) -{ - int timeout; - - /* - * Wait until the auto calibration process has finished. - * - * 1) Wait until the chip becomes ready (reads don't return 0x80). - * 2) Wait until the ACI bit of I11 gets on and then off. - */ - - timeout = 100000; - while (timeout > 0 && inb(devc->base) == 0x80) - timeout--; - if (inb(devc->base) & 0x80) - printk(KERN_WARNING "ad1848: Auto calibration timed out(1).\n"); - - timeout = 100; - while (timeout > 0 && !(ad_read(devc, 11) & 0x20)) - timeout--; - if (!(ad_read(devc, 11) & 0x20)) - return; - - timeout = 80000; - while (timeout > 0 && (ad_read(devc, 11) & 0x20)) - timeout--; - if (ad_read(devc, 11) & 0x20) - if ((devc->model != MD_1845) && (devc->model != MD_1845_SSCAPE)) - printk(KERN_WARNING "ad1848: Auto calibration timed out(3).\n"); -} - -static void ad_mute(ad1848_info * devc) -{ - int i; - unsigned char prev; - - /* - * Save old register settings and mute output channels - */ - - for (i = 6; i < 8; i++) - { - prev = devc->saved_regs[i] = ad_read(devc, i); - } - -} - -static void ad_unmute(ad1848_info * devc) -{ -} - -static void ad_enter_MCE(ad1848_info * devc) -{ - int timeout = 1000; - unsigned short prev; - - while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */ - timeout--; - - devc->MCE_bit = 0x40; - prev = inb(io_Index_Addr(devc)); - if (prev & 0x40) - { - return; - } - outb((devc->MCE_bit), io_Index_Addr(devc)); -} - -static void ad_leave_MCE(ad1848_info * devc) -{ - unsigned char prev, acal; - int timeout = 1000; - - while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */ - timeout--; - - acal = ad_read(devc, 9); - - devc->MCE_bit = 0x00; - prev = inb(io_Index_Addr(devc)); - outb((0x00), io_Index_Addr(devc)); /* Clear the MCE bit */ - - if ((prev & 0x40) == 0) /* Not in MCE mode */ - { - return; - } - outb((0x00), io_Index_Addr(devc)); /* Clear the MCE bit */ - if (acal & 0x08) /* Auto calibration is enabled */ - wait_for_calibration(devc); -} - -static int ad1848_set_recmask(ad1848_info * devc, int mask) -{ - unsigned char recdev; - int i, n; - unsigned long flags; - - mask &= devc->supported_rec_devices; - - /* Rename the mixer bits if necessary */ - for (i = 0; i < 32; i++) - { - if (devc->mixer_reroute[i] != i) - { - if (mask & (1 << i)) - { - mask &= ~(1 << i); - mask |= (1 << devc->mixer_reroute[i]); - } - } - } - - n = 0; - for (i = 0; i < 32; i++) /* Count selected device bits */ - if (mask & (1 << i)) - n++; - - spin_lock_irqsave(&devc->lock,flags); - if (!soundpro) { - if (n == 0) - mask = SOUND_MASK_MIC; - else if (n != 1) { /* Too many devices selected */ - mask &= ~devc->recmask; /* Filter out active settings */ - - n = 0; - for (i = 0; i < 32; i++) /* Count selected device bits */ - if (mask & (1 << i)) - n++; - - if (n != 1) - mask = SOUND_MASK_MIC; - } - switch (mask) { - case SOUND_MASK_MIC: - recdev = 2; - break; - - case SOUND_MASK_LINE: - case SOUND_MASK_LINE3: - recdev = 0; - break; - - case SOUND_MASK_CD: - case SOUND_MASK_LINE1: - recdev = 1; - break; - - case SOUND_MASK_IMIX: - recdev = 3; - break; - - default: - mask = SOUND_MASK_MIC; - recdev = 2; - } - - recdev <<= 6; - ad_write(devc, 0, (ad_read(devc, 0) & 0x3f) | recdev); - ad_write(devc, 1, (ad_read(devc, 1) & 0x3f) | recdev); - } else { /* soundpro */ - unsigned char val; - int set_rec_bit; - int j; - - for (i = 0; i < 32; i++) { /* For each bit */ - if ((devc->supported_rec_devices & (1 << i)) == 0) - continue; /* Device not supported */ - - for (j = LEFT_CHN; j <= RIGHT_CHN; j++) { - if (devc->mix_devices[i][j].nbits == 0) /* Inexistent channel */ - continue; - - /* - * This is tricky: - * set_rec_bit becomes 1 if the corresponding bit in mask is set - * then it gets flipped if the polarity is inverse - */ - set_rec_bit = ((mask & (1 << i)) != 0) ^ devc->mix_devices[i][j].recpol; - - val = ad_read(devc, devc->mix_devices[i][j].recreg); - val &= ~(1 << devc->mix_devices[i][j].recpos); - val |= (set_rec_bit << devc->mix_devices[i][j].recpos); - ad_write(devc, devc->mix_devices[i][j].recreg, val); - } - } - } - spin_unlock_irqrestore(&devc->lock,flags); - - /* Rename the mixer bits back if necessary */ - for (i = 0; i < 32; i++) - { - if (devc->mixer_reroute[i] != i) - { - if (mask & (1 << devc->mixer_reroute[i])) - { - mask &= ~(1 << devc->mixer_reroute[i]); - mask |= (1 << i); - } - } - } - devc->recmask = mask; - return mask; -} - -static void oss_change_bits(ad1848_info *devc, unsigned char *regval, - unsigned char *muteval, int dev, int chn, int newval) -{ - unsigned char mask; - int shift; - int mute; - int mutemask; - int set_mute_bit; - - set_mute_bit = (newval == 0) ^ devc->mix_devices[dev][chn].mutepol; - - if (devc->mix_devices[dev][chn].polarity == 1) /* Reverse */ - newval = 100 - newval; - - mask = (1 << devc->mix_devices[dev][chn].nbits) - 1; - shift = devc->mix_devices[dev][chn].bitpos; - - if (devc->mix_devices[dev][chn].mutepos == 8) - { /* if there is no mute bit */ - mute = 0; /* No mute bit; do nothing special */ - mutemask = ~0; /* No mute bit; do nothing special */ - } - else - { - mute = (set_mute_bit << devc->mix_devices[dev][chn].mutepos); - mutemask = ~(1 << devc->mix_devices[dev][chn].mutepos); - } - - newval = (int) ((newval * mask) + 50) / 100; /* Scale it */ - *regval &= ~(mask << shift); /* Clear bits */ - *regval |= (newval & mask) << shift; /* Set new value */ - - *muteval &= mutemask; - *muteval |= mute; -} - -static int ad1848_mixer_get(ad1848_info * devc, int dev) -{ - if (!((1 << dev) & devc->supported_devices)) - return -EINVAL; - - dev = devc->mixer_reroute[dev]; - - return devc->levels[dev]; -} - -static void ad1848_mixer_set_channel(ad1848_info *devc, int dev, int value, int channel) -{ - int regoffs, muteregoffs; - unsigned char val, muteval; - unsigned long flags; - - regoffs = devc->mix_devices[dev][channel].regno; - muteregoffs = devc->mix_devices[dev][channel].mutereg; - val = ad_read(devc, regoffs); - - if (muteregoffs != regoffs) { - muteval = ad_read(devc, muteregoffs); - oss_change_bits(devc, &val, &muteval, dev, channel, value); - } - else - oss_change_bits(devc, &val, &val, dev, channel, value); - - spin_lock_irqsave(&devc->lock,flags); - ad_write(devc, regoffs, val); - devc->saved_regs[regoffs] = val; - if (muteregoffs != regoffs) { - ad_write(devc, muteregoffs, muteval); - devc->saved_regs[muteregoffs] = muteval; - } - spin_unlock_irqrestore(&devc->lock,flags); -} - -static int ad1848_mixer_set(ad1848_info * devc, int dev, int value) -{ - int left = value & 0x000000ff; - int right = (value & 0x0000ff00) >> 8; - int retvol; - - if (dev > 31) - return -EINVAL; - - if (!(devc->supported_devices & (1 << dev))) - return -EINVAL; - - dev = devc->mixer_reroute[dev]; - - if (devc->mix_devices[dev][LEFT_CHN].nbits == 0) - return -EINVAL; - - if (left > 100) - left = 100; - if (right > 100) - right = 100; - - if (devc->mix_devices[dev][RIGHT_CHN].nbits == 0) /* Mono control */ - right = left; - - retvol = left | (right << 8); - - /* Scale volumes */ - left = mix_cvt[left]; - right = mix_cvt[right]; - - devc->levels[dev] = retvol; - - /* - * Set the left channel - */ - ad1848_mixer_set_channel(devc, dev, left, LEFT_CHN); - - /* - * Set the right channel - */ - if (devc->mix_devices[dev][RIGHT_CHN].nbits == 0) - goto out; - ad1848_mixer_set_channel(devc, dev, right, RIGHT_CHN); - - out: - return retvol; -} - -static void ad1848_mixer_reset(ad1848_info * devc) -{ - int i; - char name[32]; - unsigned long flags; - - devc->mix_devices = &(ad1848_mix_devices[0]); - - sprintf(name, "%s_%d", devc->chip_name, nr_ad1848_devs); - - for (i = 0; i < 32; i++) - devc->mixer_reroute[i] = i; - - devc->supported_rec_devices = MODE1_REC_DEVICES; - - switch (devc->model) - { - case MD_4231: - case MD_4231A: - case MD_1845: - case MD_1845_SSCAPE: - devc->supported_devices = MODE2_MIXER_DEVICES; - break; - - case MD_C930: - devc->supported_devices = C930_MIXER_DEVICES; - devc->mix_devices = &(c930_mix_devices[0]); - break; - - case MD_IWAVE: - devc->supported_devices = MODE3_MIXER_DEVICES; - devc->mix_devices = &(iwave_mix_devices[0]); - break; - - case MD_42xB: - case MD_4239: - devc->mix_devices = &(cs42xb_mix_devices[0]); - devc->supported_devices = MODE3_MIXER_DEVICES; - break; - case MD_4232: - case MD_4235: - case MD_4236: - devc->supported_devices = MODE3_MIXER_DEVICES; - break; - - case MD_1848: - if (soundpro) { - devc->supported_devices = SPRO_MIXER_DEVICES; - devc->supported_rec_devices = SPRO_REC_DEVICES; - devc->mix_devices = &(spro_mix_devices[0]); - break; - } - - default: - devc->supported_devices = MODE1_MIXER_DEVICES; - } - - devc->orig_devices = devc->supported_devices; - devc->orig_rec_devices = devc->supported_rec_devices; - - devc->levels = load_mixer_volumes(name, default_mixer_levels, 1); - - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) - { - if (devc->supported_devices & (1 << i)) - ad1848_mixer_set(devc, i, devc->levels[i]); - } - - ad1848_set_recmask(devc, SOUND_MASK_MIC); - - devc->mixer_output_port = devc->levels[31] | AUDIO_HEADPHONE | AUDIO_LINE_OUT; - - spin_lock_irqsave(&devc->lock,flags); - if (!soundpro) { - if (devc->mixer_output_port & AUDIO_SPEAKER) - ad_write(devc, 26, ad_read(devc, 26) & ~0x40); /* Unmute mono out */ - else - ad_write(devc, 26, ad_read(devc, 26) | 0x40); /* Mute mono out */ - } else { - /* - * From the "wouldn't it be nice if the mixer API had (better) - * support for custom stuff" category - */ - /* Enable surround mode and SB16 mixer */ - ad_write(devc, 16, 0x60); - } - spin_unlock_irqrestore(&devc->lock,flags); -} - -static int ad1848_mixer_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - ad1848_info *devc = mixer_devs[dev]->devc; - int val; - - if (cmd == SOUND_MIXER_PRIVATE1) - { - if (get_user(val, (int __user *)arg)) - return -EFAULT; - - if (val != 0xffff) - { - unsigned long flags; - val &= (AUDIO_SPEAKER | AUDIO_HEADPHONE | AUDIO_LINE_OUT); - devc->mixer_output_port = val; - val |= AUDIO_HEADPHONE | AUDIO_LINE_OUT; /* Always on */ - devc->mixer_output_port = val; - spin_lock_irqsave(&devc->lock,flags); - if (val & AUDIO_SPEAKER) - ad_write(devc, 26, ad_read(devc, 26) & ~0x40); /* Unmute mono out */ - else - ad_write(devc, 26, ad_read(devc, 26) | 0x40); /* Mute mono out */ - spin_unlock_irqrestore(&devc->lock,flags); - } - val = devc->mixer_output_port; - return put_user(val, (int __user *)arg); - } - if (cmd == SOUND_MIXER_PRIVATE2) - { - if (get_user(val, (int __user *)arg)) - return -EFAULT; - return(ad1848_control(AD1848_MIXER_REROUTE, val)); - } - if (((cmd >> 8) & 0xff) == 'M') - { - if (_SIOC_DIR(cmd) & _SIOC_WRITE) - { - switch (cmd & 0xff) - { - case SOUND_MIXER_RECSRC: - if (get_user(val, (int __user *)arg)) - return -EFAULT; - val = ad1848_set_recmask(devc, val); - break; - - default: - if (get_user(val, (int __user *)arg)) - return -EFAULT; - val = ad1848_mixer_set(devc, cmd & 0xff, val); - break; - } - return put_user(val, (int __user *)arg); - } - else - { - switch (cmd & 0xff) - { - /* - * Return parameters - */ - - case SOUND_MIXER_RECSRC: - val = devc->recmask; - break; - - case SOUND_MIXER_DEVMASK: - val = devc->supported_devices; - break; - - case SOUND_MIXER_STEREODEVS: - val = devc->supported_devices; - if (devc->model != MD_C930) - val &= ~(SOUND_MASK_SPEAKER | SOUND_MASK_IMIX); - break; - - case SOUND_MIXER_RECMASK: - val = devc->supported_rec_devices; - break; - - case SOUND_MIXER_CAPS: - val=SOUND_CAP_EXCL_INPUT; - break; - - default: - val = ad1848_mixer_get(devc, cmd & 0xff); - break; - } - return put_user(val, (int __user *)arg); - } - } - else - return -EINVAL; -} - -static int ad1848_set_speed(int dev, int arg) -{ - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - /* - * The sampling speed is encoded in the least significant nibble of I8. The - * LSB selects the clock source (0=24.576 MHz, 1=16.9344 MHz) and other - * three bits select the divisor (indirectly): - * - * The available speeds are in the following table. Keep the speeds in - * the increasing order. - */ - typedef struct - { - int speed; - unsigned char bits; - } - speed_struct; - - static speed_struct speed_table[] = - { - {5510, (0 << 1) | 1}, - {5510, (0 << 1) | 1}, - {6620, (7 << 1) | 1}, - {8000, (0 << 1) | 0}, - {9600, (7 << 1) | 0}, - {11025, (1 << 1) | 1}, - {16000, (1 << 1) | 0}, - {18900, (2 << 1) | 1}, - {22050, (3 << 1) | 1}, - {27420, (2 << 1) | 0}, - {32000, (3 << 1) | 0}, - {33075, (6 << 1) | 1}, - {37800, (4 << 1) | 1}, - {44100, (5 << 1) | 1}, - {48000, (6 << 1) | 0} - }; - - int i, n, selected = -1; - - n = sizeof(speed_table) / sizeof(speed_struct); - - if (arg <= 0) - return portc->speed; - - if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) /* AD1845 has different timer than others */ - { - if (arg < 4000) - arg = 4000; - if (arg > 50000) - arg = 50000; - - portc->speed = arg; - portc->speed_bits = speed_table[3].bits; - return portc->speed; - } - if (arg < speed_table[0].speed) - selected = 0; - if (arg > speed_table[n - 1].speed) - selected = n - 1; - - for (i = 1 /*really */ ; selected == -1 && i < n; i++) - { - if (speed_table[i].speed == arg) - selected = i; - else if (speed_table[i].speed > arg) - { - int diff1, diff2; - - diff1 = arg - speed_table[i - 1].speed; - diff2 = speed_table[i].speed - arg; - - if (diff1 < diff2) - selected = i - 1; - else - selected = i; - } - } - if (selected == -1) - { - printk(KERN_WARNING "ad1848: Can't find speed???\n"); - selected = 3; - } - portc->speed = speed_table[selected].speed; - portc->speed_bits = speed_table[selected].bits; - return portc->speed; -} - -static short ad1848_set_channels(int dev, short arg) -{ - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - if (arg != 1 && arg != 2) - return portc->channels; - - portc->channels = arg; - return arg; -} - -static unsigned int ad1848_set_bits(int dev, unsigned int arg) -{ - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - static struct format_tbl - { - int format; - unsigned char bits; - } - format2bits[] = - { - { - 0, 0 - } - , - { - AFMT_MU_LAW, 1 - } - , - { - AFMT_A_LAW, 3 - } - , - { - AFMT_IMA_ADPCM, 5 - } - , - { - AFMT_U8, 0 - } - , - { - AFMT_S16_LE, 2 - } - , - { - AFMT_S16_BE, 6 - } - , - { - AFMT_S8, 0 - } - , - { - AFMT_U16_LE, 0 - } - , - { - AFMT_U16_BE, 0 - } - }; - int i, n = sizeof(format2bits) / sizeof(struct format_tbl); - - if (arg == 0) - return portc->audio_format; - - if (!(arg & ad_format_mask[devc->model])) - arg = AFMT_U8; - - portc->audio_format = arg; - - for (i = 0; i < n; i++) - if (format2bits[i].format == arg) - { - if ((portc->format_bits = format2bits[i].bits) == 0) - return portc->audio_format = AFMT_U8; /* Was not supported */ - - return arg; - } - /* Still hanging here. Something must be terribly wrong */ - portc->format_bits = 0; - return portc->audio_format = AFMT_U8; -} - -static struct audio_driver ad1848_audio_driver = -{ - .owner = THIS_MODULE, - .open = ad1848_open, - .close = ad1848_close, - .output_block = ad1848_output_block, - .start_input = ad1848_start_input, - .prepare_for_input = ad1848_prepare_for_input, - .prepare_for_output = ad1848_prepare_for_output, - .halt_io = ad1848_halt, - .halt_input = ad1848_halt_input, - .halt_output = ad1848_halt_output, - .trigger = ad1848_trigger, - .set_speed = ad1848_set_speed, - .set_bits = ad1848_set_bits, - .set_channels = ad1848_set_channels -}; - -static struct mixer_operations ad1848_mixer_operations = -{ - .owner = THIS_MODULE, - .id = "SOUNDPORT", - .name = "AD1848/CS4248/CS4231", - .ioctl = ad1848_mixer_ioctl -}; - -static int ad1848_open(int dev, int mode) -{ - ad1848_info *devc; - ad1848_port_info *portc; - unsigned long flags; - - if (dev < 0 || dev >= num_audiodevs) - return -ENXIO; - - devc = (ad1848_info *) audio_devs[dev]->devc; - portc = (ad1848_port_info *) audio_devs[dev]->portc; - - /* here we don't have to protect against intr */ - spin_lock(&devc->lock); - if (portc->open_mode || (devc->open_mode & mode)) - { - spin_unlock(&devc->lock); - return -EBUSY; - } - devc->dual_dma = 0; - - if (audio_devs[dev]->flags & DMA_DUPLEX) - { - devc->dual_dma = 1; - } - devc->intr_active = 0; - devc->audio_mode = 0; - devc->open_mode |= mode; - portc->open_mode = mode; - spin_unlock(&devc->lock); - ad1848_trigger(dev, 0); - - if (mode & OPEN_READ) - devc->record_dev = dev; - if (mode & OPEN_WRITE) - devc->playback_dev = dev; -/* - * Mute output until the playback really starts. This decreases clicking (hope so). - */ - spin_lock_irqsave(&devc->lock,flags); - ad_mute(devc); - spin_unlock_irqrestore(&devc->lock,flags); - - return 0; -} - -static void ad1848_close(int dev) -{ - unsigned long flags; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - devc->intr_active = 0; - ad1848_halt(dev); - - spin_lock_irqsave(&devc->lock,flags); - - devc->audio_mode = 0; - devc->open_mode &= ~portc->open_mode; - portc->open_mode = 0; - - ad_unmute(devc); - spin_unlock_irqrestore(&devc->lock,flags); -} - -static void ad1848_output_block(int dev, unsigned long buf, int count, int intrflag) -{ - unsigned long flags, cnt; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - cnt = count; - - if (portc->audio_format == AFMT_IMA_ADPCM) - { - cnt /= 4; - } - else - { - if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */ - cnt >>= 1; - } - if (portc->channels > 1) - cnt >>= 1; - cnt--; - - if ((devc->audio_mode & PCM_ENABLE_OUTPUT) && (audio_devs[dev]->flags & DMA_AUTOMODE) && - intrflag && - cnt == devc->xfer_count) - { - devc->audio_mode |= PCM_ENABLE_OUTPUT; - devc->intr_active = 1; - return; /* - * Auto DMA mode on. No need to react - */ - } - spin_lock_irqsave(&devc->lock,flags); - - ad_write(devc, 15, (unsigned char) (cnt & 0xff)); - ad_write(devc, 14, (unsigned char) ((cnt >> 8) & 0xff)); - - devc->xfer_count = cnt; - devc->audio_mode |= PCM_ENABLE_OUTPUT; - devc->intr_active = 1; - spin_unlock_irqrestore(&devc->lock,flags); -} - -static void ad1848_start_input(int dev, unsigned long buf, int count, int intrflag) -{ - unsigned long flags, cnt; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - cnt = count; - if (portc->audio_format == AFMT_IMA_ADPCM) - { - cnt /= 4; - } - else - { - if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */ - cnt >>= 1; - } - if (portc->channels > 1) - cnt >>= 1; - cnt--; - - if ((devc->audio_mode & PCM_ENABLE_INPUT) && (audio_devs[dev]->flags & DMA_AUTOMODE) && - intrflag && - cnt == devc->xfer_count) - { - devc->audio_mode |= PCM_ENABLE_INPUT; - devc->intr_active = 1; - return; /* - * Auto DMA mode on. No need to react - */ - } - spin_lock_irqsave(&devc->lock,flags); - - if (devc->model == MD_1848) - { - ad_write(devc, 15, (unsigned char) (cnt & 0xff)); - ad_write(devc, 14, (unsigned char) ((cnt >> 8) & 0xff)); - } - else - { - ad_write(devc, 31, (unsigned char) (cnt & 0xff)); - ad_write(devc, 30, (unsigned char) ((cnt >> 8) & 0xff)); - } - - ad_unmute(devc); - - devc->xfer_count = cnt; - devc->audio_mode |= PCM_ENABLE_INPUT; - devc->intr_active = 1; - spin_unlock_irqrestore(&devc->lock,flags); -} - -static int ad1848_prepare_for_output(int dev, int bsize, int bcount) -{ - int timeout; - unsigned char fs, old_fs, tmp = 0; - unsigned long flags; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - ad_mute(devc); - - spin_lock_irqsave(&devc->lock,flags); - fs = portc->speed_bits | (portc->format_bits << 5); - - if (portc->channels > 1) - fs |= 0x10; - - ad_enter_MCE(devc); /* Enables changes to the format select reg */ - - if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) /* Use alternate speed select registers */ - { - fs &= 0xf0; /* Mask off the rate select bits */ - - ad_write(devc, 22, (portc->speed >> 8) & 0xff); /* Speed MSB */ - ad_write(devc, 23, portc->speed & 0xff); /* Speed LSB */ - } - old_fs = ad_read(devc, 8); - - if (devc->model == MD_4232 || devc->model >= MD_4236) - { - tmp = ad_read(devc, 16); - ad_write(devc, 16, tmp | 0x30); - } - if (devc->model == MD_IWAVE) - ad_write(devc, 17, 0xc2); /* Disable variable frequency select */ - - ad_write(devc, 8, fs); - - /* - * Write to I8 starts resynchronization. Wait until it completes. - */ - - timeout = 0; - while (timeout < 100 && inb(devc->base) != 0x80) - timeout++; - timeout = 0; - while (timeout < 10000 && inb(devc->base) == 0x80) - timeout++; - - if (devc->model >= MD_4232) - ad_write(devc, 16, tmp & ~0x30); - - ad_leave_MCE(devc); /* - * Starts the calibration process. - */ - spin_unlock_irqrestore(&devc->lock,flags); - devc->xfer_count = 0; - -#ifndef EXCLUDE_TIMERS - if (dev == timer_installed && devc->timer_running) - if ((fs & 0x01) != (old_fs & 0x01)) - { - ad1848_tmr_reprogram(dev); - } -#endif - ad1848_halt_output(dev); - return 0; -} - -static int ad1848_prepare_for_input(int dev, int bsize, int bcount) -{ - int timeout; - unsigned char fs, old_fs, tmp = 0; - unsigned long flags; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - if (devc->audio_mode) - return 0; - - spin_lock_irqsave(&devc->lock,flags); - fs = portc->speed_bits | (portc->format_bits << 5); - - if (portc->channels > 1) - fs |= 0x10; - - ad_enter_MCE(devc); /* Enables changes to the format select reg */ - - if ((devc->model == MD_1845) || (devc->model == MD_1845_SSCAPE)) /* Use alternate speed select registers */ - { - fs &= 0xf0; /* Mask off the rate select bits */ - - ad_write(devc, 22, (portc->speed >> 8) & 0xff); /* Speed MSB */ - ad_write(devc, 23, portc->speed & 0xff); /* Speed LSB */ - } - if (devc->model == MD_4232) - { - tmp = ad_read(devc, 16); - ad_write(devc, 16, tmp | 0x30); - } - if (devc->model == MD_IWAVE) - ad_write(devc, 17, 0xc2); /* Disable variable frequency select */ - - /* - * If mode >= 2 (CS4231), set I28. It's the capture format register. - */ - - if (devc->model != MD_1848) - { - old_fs = ad_read(devc, 28); - ad_write(devc, 28, fs); - - /* - * Write to I28 starts resynchronization. Wait until it completes. - */ - - timeout = 0; - while (timeout < 100 && inb(devc->base) != 0x80) - timeout++; - - timeout = 0; - while (timeout < 10000 && inb(devc->base) == 0x80) - timeout++; - - if (devc->model != MD_1848 && devc->model != MD_1845 && devc->model != MD_1845_SSCAPE) - { - /* - * CS4231 compatible devices don't have separate sampling rate selection - * register for recording an playback. The I8 register is shared so we have to - * set the speed encoding bits of it too. - */ - unsigned char tmp = portc->speed_bits | (ad_read(devc, 8) & 0xf0); - - ad_write(devc, 8, tmp); - /* - * Write to I8 starts resynchronization. Wait until it completes. - */ - timeout = 0; - while (timeout < 100 && inb(devc->base) != 0x80) - timeout++; - - timeout = 0; - while (timeout < 10000 && inb(devc->base) == 0x80) - timeout++; - } - } - else - { /* For AD1848 set I8. */ - - old_fs = ad_read(devc, 8); - ad_write(devc, 8, fs); - /* - * Write to I8 starts resynchronization. Wait until it completes. - */ - timeout = 0; - while (timeout < 100 && inb(devc->base) != 0x80) - timeout++; - timeout = 0; - while (timeout < 10000 && inb(devc->base) == 0x80) - timeout++; - } - - if (devc->model == MD_4232) - ad_write(devc, 16, tmp & ~0x30); - - ad_leave_MCE(devc); /* - * Starts the calibration process. - */ - spin_unlock_irqrestore(&devc->lock,flags); - devc->xfer_count = 0; - -#ifndef EXCLUDE_TIMERS - if (dev == timer_installed && devc->timer_running) - { - if ((fs & 0x01) != (old_fs & 0x01)) - { - ad1848_tmr_reprogram(dev); - } - } -#endif - ad1848_halt_input(dev); - return 0; -} - -static void ad1848_halt(int dev) -{ - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - unsigned char bits = ad_read(devc, 9); - - if (bits & 0x01 && (portc->open_mode & OPEN_WRITE)) - ad1848_halt_output(dev); - - if (bits & 0x02 && (portc->open_mode & OPEN_READ)) - ad1848_halt_input(dev); - devc->audio_mode = 0; -} - -static void ad1848_halt_input(int dev) -{ - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - unsigned long flags; - - if (!(ad_read(devc, 9) & 0x02)) - return; /* Capture not enabled */ - - spin_lock_irqsave(&devc->lock,flags); - - ad_mute(devc); - - { - int tmout; - - if(!isa_dma_bridge_buggy) - disable_dma(audio_devs[dev]->dmap_in->dma); - - for (tmout = 0; tmout < 100000; tmout++) - if (ad_read(devc, 11) & 0x10) - break; - ad_write(devc, 9, ad_read(devc, 9) & ~0x02); /* Stop capture */ - - if(!isa_dma_bridge_buggy) - enable_dma(audio_devs[dev]->dmap_in->dma); - devc->audio_mode &= ~PCM_ENABLE_INPUT; - } - - outb(0, io_Status(devc)); /* Clear interrupt status */ - outb(0, io_Status(devc)); /* Clear interrupt status */ - - devc->audio_mode &= ~PCM_ENABLE_INPUT; - - spin_unlock_irqrestore(&devc->lock,flags); -} - -static void ad1848_halt_output(int dev) -{ - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - unsigned long flags; - - if (!(ad_read(devc, 9) & 0x01)) - return; /* Playback not enabled */ - - spin_lock_irqsave(&devc->lock,flags); - - ad_mute(devc); - { - int tmout; - - if(!isa_dma_bridge_buggy) - disable_dma(audio_devs[dev]->dmap_out->dma); - - for (tmout = 0; tmout < 100000; tmout++) - if (ad_read(devc, 11) & 0x10) - break; - ad_write(devc, 9, ad_read(devc, 9) & ~0x01); /* Stop playback */ - - if(!isa_dma_bridge_buggy) - enable_dma(audio_devs[dev]->dmap_out->dma); - - devc->audio_mode &= ~PCM_ENABLE_OUTPUT; - } - - outb((0), io_Status(devc)); /* Clear interrupt status */ - outb((0), io_Status(devc)); /* Clear interrupt status */ - - devc->audio_mode &= ~PCM_ENABLE_OUTPUT; - - spin_unlock_irqrestore(&devc->lock,flags); -} - -static void ad1848_trigger(int dev, int state) -{ - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - unsigned long flags; - unsigned char tmp, old; - - spin_lock_irqsave(&devc->lock,flags); - state &= devc->audio_mode; - - tmp = old = ad_read(devc, 9); - - if (portc->open_mode & OPEN_READ) - { - if (state & PCM_ENABLE_INPUT) - tmp |= 0x02; - else - tmp &= ~0x02; - } - if (portc->open_mode & OPEN_WRITE) - { - if (state & PCM_ENABLE_OUTPUT) - tmp |= 0x01; - else - tmp &= ~0x01; - } - /* ad_mute(devc); */ - if (tmp != old) - { - ad_write(devc, 9, tmp); - ad_unmute(devc); - } - spin_unlock_irqrestore(&devc->lock,flags); -} - -static void ad1848_init_hw(ad1848_info * devc) -{ - int i; - int *init_values; - - /* - * Initial values for the indirect registers of CS4248/AD1848. - */ - static int init_values_a[] = - { - 0xa8, 0xa8, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00, - 0x00, 0x0c, 0x02, 0x00, 0x8a, 0x01, 0x00, 0x00, - - /* Positions 16 to 31 just for CS4231/2 and ad1845 */ - 0x80, 0x00, 0x10, 0x10, 0x00, 0x00, 0x1f, 0x40, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 - }; - - static int init_values_b[] = - { - /* - Values for the newer chips - Some of the register initialization values were changed. In - order to get rid of the click that preceded PCM playback, - calibration was disabled on the 10th byte. On that same byte, - dual DMA was enabled; on the 11th byte, ADC dithering was - enabled, since that is theoretically desirable; on the 13th - byte, Mode 3 was selected, to enable access to extended - registers. - */ - 0xa8, 0xa8, 0x08, 0x08, 0x08, 0x08, 0x00, 0x00, - 0x00, 0x00, 0x06, 0x00, 0xe0, 0x01, 0x00, 0x00, - 0x80, 0x00, 0x10, 0x10, 0x00, 0x00, 0x1f, 0x40, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 - }; - - /* - * Select initialisation data - */ - - init_values = init_values_a; - if(devc->model >= MD_4236) - init_values = init_values_b; - - for (i = 0; i < 16; i++) - ad_write(devc, i, init_values[i]); - - - ad_mute(devc); /* Initialize some variables */ - ad_unmute(devc); /* Leave it unmuted now */ - - if (devc->model > MD_1848) - { - if (devc->model == MD_1845_SSCAPE) - ad_write(devc, 12, ad_read(devc, 12) | 0x50); - else - ad_write(devc, 12, ad_read(devc, 12) | 0x40); /* Mode2 = enabled */ - - if (devc->model == MD_IWAVE) - ad_write(devc, 12, 0x6c); /* Select codec mode 3 */ - - if (devc->model != MD_1845_SSCAPE) - for (i = 16; i < 32; i++) - ad_write(devc, i, init_values[i]); - - if (devc->model == MD_IWAVE) - ad_write(devc, 16, 0x30); /* Playback and capture counters enabled */ - } - if (devc->model > MD_1848) - { - if (devc->audio_flags & DMA_DUPLEX) - ad_write(devc, 9, ad_read(devc, 9) & ~0x04); /* Dual DMA mode */ - else - ad_write(devc, 9, ad_read(devc, 9) | 0x04); /* Single DMA mode */ - - if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) - ad_write(devc, 27, ad_read(devc, 27) | 0x08); /* Alternate freq select enabled */ - - if (devc->model == MD_IWAVE) - { /* Some magic Interwave specific initialization */ - ad_write(devc, 12, 0x6c); /* Select codec mode 3 */ - ad_write(devc, 16, 0x30); /* Playback and capture counters enabled */ - ad_write(devc, 17, 0xc2); /* Alternate feature enable */ - } - } - else - { - devc->audio_flags &= ~DMA_DUPLEX; - ad_write(devc, 9, ad_read(devc, 9) | 0x04); /* Single DMA mode */ - if (soundpro) - ad_write(devc, 12, ad_read(devc, 12) | 0x40); /* Mode2 = enabled */ - } - - outb((0), io_Status(devc)); /* Clear pending interrupts */ - - /* - * Toggle the MCE bit. It completes the initialization phase. - */ - - ad_enter_MCE(devc); /* In case the bit was off */ - ad_leave_MCE(devc); - - ad1848_mixer_reset(devc); -} - -int ad1848_detect(struct resource *ports, int *ad_flags, int *osp) -{ - unsigned char tmp; - ad1848_info *devc = &adev_info[nr_ad1848_devs]; - unsigned char tmp1 = 0xff, tmp2 = 0xff; - int optiC930 = 0; /* OPTi 82C930 flag */ - int interwave = 0; - int ad1847_flag = 0; - int cs4248_flag = 0; - int sscape_flag = 0; - int io_base = ports->start; - - int i; - - DDB(printk("ad1848_detect(%x)\n", io_base)); - - if (ad_flags) - { - if (*ad_flags == 0x12345678) - { - interwave = 1; - *ad_flags = 0; - } - - if (*ad_flags == 0x87654321) - { - sscape_flag = 1; - *ad_flags = 0; - } - - if (*ad_flags == 0x12345677) - { - cs4248_flag = 1; - *ad_flags = 0; - } - } - if (nr_ad1848_devs >= MAX_AUDIO_DEV) - { - printk(KERN_ERR "ad1848 - Too many audio devices\n"); - return 0; - } - spin_lock_init(&devc->lock); - devc->base = io_base; - devc->irq_ok = 0; - devc->timer_running = 0; - devc->MCE_bit = 0x40; - devc->irq = 0; - devc->open_mode = 0; - devc->chip_name = devc->name = "AD1848"; - devc->model = MD_1848; /* AD1848 or CS4248 */ - devc->levels = NULL; - devc->debug_flag = 0; - - /* - * Check that the I/O address is in use. - * - * The bit 0x80 of the base I/O port is known to be 0 after the - * chip has performed its power on initialization. Just assume - * this has happened before the OS is starting. - * - * If the I/O address is unused, it typically returns 0xff. - */ - - if (inb(devc->base) == 0xff) - { - DDB(printk("ad1848_detect: The base I/O address appears to be dead\n")); - } - - /* - * Wait for the device to stop initialization - */ - - DDB(printk("ad1848_detect() - step 0\n")); - - for (i = 0; i < 10000000; i++) - { - unsigned char x = inb(devc->base); - - if (x == 0xff || !(x & 0x80)) - break; - } - - DDB(printk("ad1848_detect() - step A\n")); - - if (inb(devc->base) == 0x80) /* Not ready. Let's wait */ - ad_leave_MCE(devc); - - if ((inb(devc->base) & 0x80) != 0x00) /* Not a AD1848 */ - { - DDB(printk("ad1848 detect error - step A (%02x)\n", (int) inb(devc->base))); - return 0; - } - - /* - * Test if it's possible to change contents of the indirect registers. - * Registers 0 and 1 are ADC volume registers. The bit 0x10 is read only - * so try to avoid using it. - */ - - DDB(printk("ad1848_detect() - step B\n")); - ad_write(devc, 0, 0xaa); - ad_write(devc, 1, 0x45); /* 0x55 with bit 0x10 clear */ - - if ((tmp1 = ad_read(devc, 0)) != 0xaa || (tmp2 = ad_read(devc, 1)) != 0x45) - { - if (tmp2 == 0x65) /* AD1847 has couple of bits hardcoded to 1 */ - ad1847_flag = 1; - else - { - DDB(printk("ad1848 detect error - step B (%x/%x)\n", tmp1, tmp2)); - return 0; - } - } - DDB(printk("ad1848_detect() - step C\n")); - ad_write(devc, 0, 0x45); - ad_write(devc, 1, 0xaa); - - if ((tmp1 = ad_read(devc, 0)) != 0x45 || (tmp2 = ad_read(devc, 1)) != 0xaa) - { - if (tmp2 == 0x8a) /* AD1847 has few bits hardcoded to 1 */ - ad1847_flag = 1; - else - { - DDB(printk("ad1848 detect error - step C (%x/%x)\n", tmp1, tmp2)); - return 0; - } - } - - /* - * The indirect register I12 has some read only bits. Let's - * try to change them. - */ - - DDB(printk("ad1848_detect() - step D\n")); - tmp = ad_read(devc, 12); - ad_write(devc, 12, (~tmp) & 0x0f); - - if ((tmp & 0x0f) != ((tmp1 = ad_read(devc, 12)) & 0x0f)) - { - DDB(printk("ad1848 detect error - step D (%x)\n", tmp1)); - return 0; - } - - /* - * NOTE! Last 4 bits of the reg I12 tell the chip revision. - * 0x01=RevB and 0x0A=RevC. - */ - - /* - * The original AD1848/CS4248 has just 15 indirect registers. This means - * that I0 and I16 should return the same value (etc.). - * However this doesn't work with CS4248. Actually it seems to be impossible - * to detect if the chip is a CS4231 or CS4248. - * Ensure that the Mode2 enable bit of I12 is 0. Otherwise this test fails - * with CS4231. - */ - - /* - * OPTi 82C930 has mode2 control bit in another place. This test will fail - * with it. Accept this situation as a possible indication of this chip. - */ - - DDB(printk("ad1848_detect() - step F\n")); - ad_write(devc, 12, 0); /* Mode2=disabled */ - - for (i = 0; i < 16; i++) - { - if ((tmp1 = ad_read(devc, i)) != (tmp2 = ad_read(devc, i + 16))) - { - DDB(printk("ad1848 detect step F(%d/%x/%x) - OPTi chip???\n", i, tmp1, tmp2)); - if (!ad1847_flag) - optiC930 = 1; - break; - } - } - - /* - * Try to switch the chip to mode2 (CS4231) by setting the MODE2 bit (0x40). - * The bit 0x80 is always 1 in CS4248 and CS4231. - */ - - DDB(printk("ad1848_detect() - step G\n")); - - if (ad_flags && *ad_flags == 400) - *ad_flags = 0; - else - ad_write(devc, 12, 0x40); /* Set mode2, clear 0x80 */ - - - if (ad_flags) - *ad_flags = 0; - - tmp1 = ad_read(devc, 12); - if (tmp1 & 0x80) - { - if (ad_flags) - *ad_flags |= AD_F_CS4248; - - devc->chip_name = "CS4248"; /* Our best knowledge just now */ - } - if (optiC930 || (tmp1 & 0xc0) == (0x80 | 0x40)) - { - /* - * CS4231 detected - is it? - * - * Verify that setting I0 doesn't change I16. - */ - - DDB(printk("ad1848_detect() - step H\n")); - ad_write(devc, 16, 0); /* Set I16 to known value */ - - ad_write(devc, 0, 0x45); - if ((tmp1 = ad_read(devc, 16)) != 0x45) /* No change -> CS4231? */ - { - ad_write(devc, 0, 0xaa); - if ((tmp1 = ad_read(devc, 16)) == 0xaa) /* Rotten bits? */ - { - DDB(printk("ad1848 detect error - step H(%x)\n", tmp1)); - return 0; - } - - /* - * Verify that some bits of I25 are read only. - */ - - DDB(printk("ad1848_detect() - step I\n")); - tmp1 = ad_read(devc, 25); /* Original bits */ - ad_write(devc, 25, ~tmp1); /* Invert all bits */ - if ((ad_read(devc, 25) & 0xe7) == (tmp1 & 0xe7)) - { - int id; - - /* - * It's at least CS4231 - */ - - devc->chip_name = "CS4231"; - devc->model = MD_4231; - - /* - * It could be an AD1845 or CS4231A as well. - * CS4231 and AD1845 report the same revision info in I25 - * while the CS4231A reports different. - */ - - id = ad_read(devc, 25); - if ((id & 0xe7) == 0x80) /* Device busy??? */ - id = ad_read(devc, 25); - if ((id & 0xe7) == 0x80) /* Device still busy??? */ - id = ad_read(devc, 25); - DDB(printk("ad1848_detect() - step J (%02x/%02x)\n", id, ad_read(devc, 25))); - - if ((id & 0xe7) == 0x80) { - /* - * It must be a CS4231 or AD1845. The register I23 of - * CS4231 is undefined and it appears to be read only. - * AD1845 uses I23 for setting sample rate. Assume - * the chip is AD1845 if I23 is changeable. - */ - - unsigned char tmp = ad_read(devc, 23); - ad_write(devc, 23, ~tmp); - - if (interwave) - { - devc->model = MD_IWAVE; - devc->chip_name = "IWave"; - } - else if (ad_read(devc, 23) != tmp) /* AD1845 ? */ - { - devc->chip_name = "AD1845"; - devc->model = MD_1845; - } - else if (cs4248_flag) - { - if (ad_flags) - *ad_flags |= AD_F_CS4248; - devc->chip_name = "CS4248"; - devc->model = MD_1848; - ad_write(devc, 12, ad_read(devc, 12) & ~0x40); /* Mode2 off */ - } - ad_write(devc, 23, tmp); /* Restore */ - } - else - { - switch (id & 0x1f) { - case 3: /* CS4236/CS4235/CS42xB/CS4239 */ - { - int xid; - ad_write(devc, 12, ad_read(devc, 12) | 0x60); /* switch to mode 3 */ - ad_write(devc, 23, 0x9c); /* select extended register 25 */ - xid = inb(io_Indexed_Data(devc)); - ad_write(devc, 12, ad_read(devc, 12) & ~0x60); /* back to mode 0 */ - switch (xid & 0x1f) - { - case 0x00: - devc->chip_name = "CS4237B(B)"; - devc->model = MD_42xB; - break; - case 0x08: - /* Seems to be a 4238 ?? */ - devc->chip_name = "CS4238"; - devc->model = MD_42xB; - break; - case 0x09: - devc->chip_name = "CS4238B"; - devc->model = MD_42xB; - break; - case 0x0b: - devc->chip_name = "CS4236B"; - devc->model = MD_4236; - break; - case 0x10: - devc->chip_name = "CS4237B"; - devc->model = MD_42xB; - break; - case 0x1d: - devc->chip_name = "CS4235"; - devc->model = MD_4235; - break; - case 0x1e: - devc->chip_name = "CS4239"; - devc->model = MD_4239; - break; - default: - printk("Chip ident is %X.\n", xid&0x1F); - devc->chip_name = "CS42xx"; - devc->model = MD_4232; - break; - } - } - break; - - case 2: /* CS4232/CS4232A */ - devc->chip_name = "CS4232"; - devc->model = MD_4232; - break; - - case 0: - if ((id & 0xe0) == 0xa0) - { - devc->chip_name = "CS4231A"; - devc->model = MD_4231A; - } - else - { - devc->chip_name = "CS4321"; - devc->model = MD_4231; - } - break; - - default: /* maybe */ - DDB(printk("ad1848: I25 = %02x/%02x\n", ad_read(devc, 25), ad_read(devc, 25) & 0xe7)); - if (optiC930) - { - devc->chip_name = "82C930"; - devc->model = MD_C930; - } - else - { - devc->chip_name = "CS4231"; - devc->model = MD_4231; - } - } - } - } - ad_write(devc, 25, tmp1); /* Restore bits */ - - DDB(printk("ad1848_detect() - step K\n")); - } - } else if (tmp1 == 0x0a) { - /* - * Is it perhaps a SoundPro CMI8330? - * If so, then we should be able to change indirect registers - * greater than I15 after activating MODE2, even though reading - * back I12 does not show it. - */ - - /* - * Let's try comparing register values - */ - for (i = 0; i < 16; i++) { - if ((tmp1 = ad_read(devc, i)) != (tmp2 = ad_read(devc, i + 16))) { - DDB(printk("ad1848 detect step H(%d/%x/%x) - SoundPro chip?\n", i, tmp1, tmp2)); - soundpro = 1; - devc->chip_name = "SoundPro CMI 8330"; - break; - } - } - } - - DDB(printk("ad1848_detect() - step L\n")); - if (ad_flags) - { - if (devc->model != MD_1848) - *ad_flags |= AD_F_CS4231; - } - DDB(printk("ad1848_detect() - Detected OK\n")); - - if (devc->model == MD_1848 && ad1847_flag) - devc->chip_name = "AD1847"; - - - if (sscape_flag == 1) - devc->model = MD_1845_SSCAPE; - - return 1; -} - -int ad1848_init (char *name, struct resource *ports, int irq, int dma_playback, - int dma_capture, int share_dma, int *osp, struct module *owner) -{ - /* - * NOTE! If irq < 0, there is another driver which has allocated the IRQ - * so that this driver doesn't need to allocate/deallocate it. - * The actually used IRQ is ABS(irq). - */ - - int my_dev; - char dev_name[100]; - int e; - - ad1848_info *devc = &adev_info[nr_ad1848_devs]; - - ad1848_port_info *portc = NULL; - - devc->irq = (irq > 0) ? irq : 0; - devc->open_mode = 0; - devc->timer_ticks = 0; - devc->dma1 = dma_playback; - devc->dma2 = dma_capture; - devc->subtype = cfg.card_subtype; - devc->audio_flags = DMA_AUTOMODE; - devc->playback_dev = devc->record_dev = 0; - if (name != NULL) - devc->name = name; - - if (name != NULL && name[0] != 0) - sprintf(dev_name, - "%s (%s)", name, devc->chip_name); - else - sprintf(dev_name, - "Generic audio codec (%s)", devc->chip_name); - - rename_region(ports, devc->name); - - conf_printf2(dev_name, devc->base, devc->irq, dma_playback, dma_capture); - - if (devc->model == MD_1848 || devc->model == MD_C930) - devc->audio_flags |= DMA_HARDSTOP; - - if (devc->model > MD_1848) - { - if (devc->dma1 == devc->dma2 || devc->dma2 == -1 || devc->dma1 == -1) - devc->audio_flags &= ~DMA_DUPLEX; - else - devc->audio_flags |= DMA_DUPLEX; - } - - portc = kmalloc(sizeof(ad1848_port_info), GFP_KERNEL); - if(portc==NULL) { - release_region(devc->base, 4); - return -1; - } - - if ((my_dev = sound_install_audiodrv(AUDIO_DRIVER_VERSION, - dev_name, - &ad1848_audio_driver, - sizeof(struct audio_driver), - devc->audio_flags, - ad_format_mask[devc->model], - devc, - dma_playback, - dma_capture)) < 0) - { - release_region(devc->base, 4); - kfree(portc); - return -1; - } - - audio_devs[my_dev]->portc = portc; - audio_devs[my_dev]->mixer_dev = -1; - if (owner) - audio_devs[my_dev]->d->owner = owner; - memset((char *) portc, 0, sizeof(*portc)); - - nr_ad1848_devs++; - - ad1848_init_hw(devc); - - if (irq > 0) - { - devc->dev_no = my_dev; - if (request_irq(devc->irq, adintr, 0, devc->name, - (void *)(long)my_dev) < 0) - { - printk(KERN_WARNING "ad1848: Unable to allocate IRQ\n"); - /* Don't free it either then.. */ - devc->irq = 0; - } - if (capabilities[devc->model].flags & CAP_F_TIMER) - { -#ifndef CONFIG_SMP - int x; - unsigned char tmp = ad_read(devc, 16); -#endif - - devc->timer_ticks = 0; - - ad_write(devc, 21, 0x00); /* Timer MSB */ - ad_write(devc, 20, 0x10); /* Timer LSB */ -#ifndef CONFIG_SMP - ad_write(devc, 16, tmp | 0x40); /* Enable timer */ - for (x = 0; x < 100000 && devc->timer_ticks == 0; x++); - ad_write(devc, 16, tmp & ~0x40); /* Disable timer */ - - if (devc->timer_ticks == 0) - printk(KERN_WARNING "ad1848: Interrupt test failed (IRQ%d)\n", irq); - else - { - DDB(printk("Interrupt test OK\n")); - devc->irq_ok = 1; - } -#else - devc->irq_ok = 1; -#endif - } - else - devc->irq_ok = 1; /* Couldn't test. assume it's OK */ - } else if (irq < 0) - devc->dev_no = my_dev; - -#ifndef EXCLUDE_TIMERS - if ((capabilities[devc->model].flags & CAP_F_TIMER) && - devc->irq_ok) - ad1848_tmr_install(my_dev); -#endif - - if (!share_dma) - { - if (sound_alloc_dma(dma_playback, devc->name)) - printk(KERN_WARNING "ad1848.c: Can't allocate DMA%d\n", dma_playback); - - if (dma_capture != dma_playback) - if (sound_alloc_dma(dma_capture, devc->name)) - printk(KERN_WARNING "ad1848.c: Can't allocate DMA%d\n", dma_capture); - } - - if ((e = sound_install_mixer(MIXER_DRIVER_VERSION, - dev_name, - &ad1848_mixer_operations, - sizeof(struct mixer_operations), - devc)) >= 0) - { - audio_devs[my_dev]->mixer_dev = e; - if (owner) - mixer_devs[e]->owner = owner; - } - return my_dev; -} - -int ad1848_control(int cmd, int arg) -{ - ad1848_info *devc; - unsigned long flags; - - if (nr_ad1848_devs < 1) - return -ENODEV; - - devc = &adev_info[nr_ad1848_devs - 1]; - - switch (cmd) - { - case AD1848_SET_XTAL: /* Change clock frequency of AD1845 (only ) */ - if (devc->model != MD_1845 && devc->model != MD_1845_SSCAPE) - return -EINVAL; - spin_lock_irqsave(&devc->lock,flags); - ad_enter_MCE(devc); - ad_write(devc, 29, (ad_read(devc, 29) & 0x1f) | (arg << 5)); - ad_leave_MCE(devc); - spin_unlock_irqrestore(&devc->lock,flags); - break; - - case AD1848_MIXER_REROUTE: - { - int o = (arg >> 8) & 0xff; - int n = arg & 0xff; - - if (o < 0 || o >= SOUND_MIXER_NRDEVICES) - return -EINVAL; - - if (!(devc->supported_devices & (1 << o)) && - !(devc->supported_rec_devices & (1 << o))) - return -EINVAL; - - if (n == SOUND_MIXER_NONE) - { /* Just hide this control */ - ad1848_mixer_set(devc, o, 0); /* Shut up it */ - devc->supported_devices &= ~(1 << o); - devc->supported_rec_devices &= ~(1 << o); - break; - } - - /* Make the mixer control identified by o to appear as n */ - if (n < 0 || n >= SOUND_MIXER_NRDEVICES) - return -EINVAL; - - devc->mixer_reroute[n] = o; /* Rename the control */ - if (devc->supported_devices & (1 << o)) - devc->supported_devices |= (1 << n); - if (devc->supported_rec_devices & (1 << o)) - devc->supported_rec_devices |= (1 << n); - - devc->supported_devices &= ~(1 << o); - devc->supported_rec_devices &= ~(1 << o); - } - break; - } - return 0; -} - -void ad1848_unload(int io_base, int irq, int dma_playback, int dma_capture, int share_dma) -{ - int i, mixer, dev = 0; - ad1848_info *devc = NULL; - - for (i = 0; devc == NULL && i < nr_ad1848_devs; i++) - { - if (adev_info[i].base == io_base) - { - devc = &adev_info[i]; - dev = devc->dev_no; - } - } - - if (devc != NULL) - { - kfree(audio_devs[dev]->portc); - release_region(devc->base, 4); - - if (!share_dma) - { - if (devc->irq > 0) /* There is no point in freeing irq, if it wasn't allocated */ - free_irq(devc->irq, (void *)(long)devc->dev_no); - - sound_free_dma(dma_playback); - - if (dma_playback != dma_capture) - sound_free_dma(dma_capture); - - } - mixer = audio_devs[devc->dev_no]->mixer_dev; - if(mixer>=0) - sound_unload_mixerdev(mixer); - - nr_ad1848_devs--; - for ( ; i < nr_ad1848_devs ; i++) - adev_info[i] = adev_info[i+1]; - } - else - printk(KERN_ERR "ad1848: Can't find device to be unloaded. Base=%x\n", io_base); -} - -static irqreturn_t adintr(int irq, void *dev_id) -{ - unsigned char status; - ad1848_info *devc; - int dev; - int alt_stat = 0xff; - unsigned char c930_stat = 0; - int cnt = 0; - - dev = (long)dev_id; - devc = (ad1848_info *) audio_devs[dev]->devc; - -interrupt_again: /* Jump back here if int status doesn't reset */ - - status = inb(io_Status(devc)); - - if (status == 0x80) - printk(KERN_DEBUG "adintr: Why?\n"); - if (devc->model == MD_1848) - outb((0), io_Status(devc)); /* Clear interrupt status */ - - if (status & 0x01) - { - if (devc->model == MD_C930) - { /* 82C930 has interrupt status register in MAD16 register MC11 */ - - spin_lock(&devc->lock); - - /* 0xe0e is C930 address port - * 0xe0f is C930 data port - */ - outb(11, 0xe0e); - c930_stat = inb(0xe0f); - outb((~c930_stat), 0xe0f); - - spin_unlock(&devc->lock); - - alt_stat = (c930_stat << 2) & 0x30; - } - else if (devc->model != MD_1848) - { - spin_lock(&devc->lock); - alt_stat = ad_read(devc, 24); - ad_write(devc, 24, ad_read(devc, 24) & ~alt_stat); /* Selective ack */ - spin_unlock(&devc->lock); - } - - if ((devc->open_mode & OPEN_READ) && (devc->audio_mode & PCM_ENABLE_INPUT) && (alt_stat & 0x20)) - { - DMAbuf_inputintr(devc->record_dev); - } - if ((devc->open_mode & OPEN_WRITE) && (devc->audio_mode & PCM_ENABLE_OUTPUT) && - (alt_stat & 0x10)) - { - DMAbuf_outputintr(devc->playback_dev, 1); - } - if (devc->model != MD_1848 && (alt_stat & 0x40)) /* Timer interrupt */ - { - devc->timer_ticks++; -#ifndef EXCLUDE_TIMERS - if (timer_installed == dev && devc->timer_running) - sound_timer_interrupt(); -#endif - } - } -/* - * Sometimes playback or capture interrupts occur while a timer interrupt - * is being handled. The interrupt will not be retriggered if we don't - * handle it now. Check if an interrupt is still pending and restart - * the handler in this case. - */ - if (inb(io_Status(devc)) & 0x01 && cnt++ < 4) - { - goto interrupt_again; - } - return IRQ_HANDLED; -} - -/* - * Experimental initialization sequence for the integrated sound system - * of the Compaq Deskpro M. - */ - -static int init_deskpro_m(struct address_info *hw_config) -{ - unsigned char tmp; - - if ((tmp = inb(0xc44)) == 0xff) - { - DDB(printk("init_deskpro_m: Dead port 0xc44\n")); - return 0; - } - - outb(0x10, 0xc44); - outb(0x40, 0xc45); - outb(0x00, 0xc46); - outb(0xe8, 0xc47); - outb(0x14, 0xc44); - outb(0x40, 0xc45); - outb(0x00, 0xc46); - outb(0xe8, 0xc47); - outb(0x10, 0xc44); - - return 1; -} - -/* - * Experimental initialization sequence for the integrated sound system - * of Compaq Deskpro XL. - */ - -static int init_deskpro(struct address_info *hw_config) -{ - unsigned char tmp; - - if ((tmp = inb(0xc44)) == 0xff) - { - DDB(printk("init_deskpro: Dead port 0xc44\n")); - return 0; - } - outb((tmp | 0x04), 0xc44); /* Select bank 1 */ - if (inb(0xc44) != 0x04) - { - DDB(printk("init_deskpro: Invalid bank1 signature in port 0xc44\n")); - return 0; - } - /* - * OK. It looks like a Deskpro so let's proceed. - */ - - /* - * I/O port 0xc44 Audio configuration register. - * - * bits 0xc0: Audio revision bits - * 0x00 = Compaq Business Audio - * 0x40 = MS Sound System Compatible (reset default) - * 0x80 = Reserved - * 0xc0 = Reserved - * bit 0x20: No Wait State Enable - * 0x00 = Disabled (reset default, DMA mode) - * 0x20 = Enabled (programmed I/O mode) - * bit 0x10: MS Sound System Decode Enable - * 0x00 = Decoding disabled (reset default) - * 0x10 = Decoding enabled - * bit 0x08: FM Synthesis Decode Enable - * 0x00 = Decoding Disabled (reset default) - * 0x08 = Decoding enabled - * bit 0x04 Bank select - * 0x00 = Bank 0 - * 0x04 = Bank 1 - * bits 0x03 MSS Base address - * 0x00 = 0x530 (reset default) - * 0x01 = 0x604 - * 0x02 = 0xf40 - * 0x03 = 0xe80 - */ - -#ifdef DEBUGXL - /* Debug printing */ - printk("Port 0xc44 (before): "); - outb((tmp & ~0x04), 0xc44); - printk("%02x ", inb(0xc44)); - outb((tmp | 0x04), 0xc44); - printk("%02x\n", inb(0xc44)); -#endif - - /* Set bank 1 of the register */ - tmp = 0x58; /* MSS Mode, MSS&FM decode enabled */ - - switch (hw_config->io_base) - { - case 0x530: - tmp |= 0x00; - break; - case 0x604: - tmp |= 0x01; - break; - case 0xf40: - tmp |= 0x02; - break; - case 0xe80: - tmp |= 0x03; - break; - default: - DDB(printk("init_deskpro: Invalid MSS port %x\n", hw_config->io_base)); - return 0; - } - outb((tmp & ~0x04), 0xc44); /* Write to bank=0 */ - -#ifdef DEBUGXL - /* Debug printing */ - printk("Port 0xc44 (after): "); - outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ - printk("%02x ", inb(0xc44)); - outb((tmp | 0x04), 0xc44); /* Select bank=1 */ - printk("%02x\n", inb(0xc44)); -#endif - - /* - * I/O port 0xc45 FM Address Decode/MSS ID Register. - * - * bank=0, bits 0xfe: FM synthesis Decode Compare bits 7:1 (default=0x88) - * bank=0, bit 0x01: SBIC Power Control Bit - * 0x00 = Powered up - * 0x01 = Powered down - * bank=1, bits 0xfc: MSS ID (default=0x40) - */ - -#ifdef DEBUGXL - /* Debug printing */ - printk("Port 0xc45 (before): "); - outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ - printk("%02x ", inb(0xc45)); - outb((tmp | 0x04), 0xc44); /* Select bank=1 */ - printk("%02x\n", inb(0xc45)); -#endif - - outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ - outb((0x88), 0xc45); /* FM base 7:0 = 0x88 */ - outb((tmp | 0x04), 0xc44); /* Select bank=1 */ - outb((0x10), 0xc45); /* MSS ID = 0x10 (MSS port returns 0x04) */ - -#ifdef DEBUGXL - /* Debug printing */ - printk("Port 0xc45 (after): "); - outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ - printk("%02x ", inb(0xc45)); - outb((tmp | 0x04), 0xc44); /* Select bank=1 */ - printk("%02x\n", inb(0xc45)); -#endif - - - /* - * I/O port 0xc46 FM Address Decode/Address ASIC Revision Register. - * - * bank=0, bits 0xff: FM synthesis Decode Compare bits 15:8 (default=0x03) - * bank=1, bits 0xff: Audio addressing ASIC id - */ - -#ifdef DEBUGXL - /* Debug printing */ - printk("Port 0xc46 (before): "); - outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ - printk("%02x ", inb(0xc46)); - outb((tmp | 0x04), 0xc44); /* Select bank=1 */ - printk("%02x\n", inb(0xc46)); -#endif - - outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ - outb((0x03), 0xc46); /* FM base 15:8 = 0x03 */ - outb((tmp | 0x04), 0xc44); /* Select bank=1 */ - outb((0x11), 0xc46); /* ASIC ID = 0x11 */ - -#ifdef DEBUGXL - /* Debug printing */ - printk("Port 0xc46 (after): "); - outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ - printk("%02x ", inb(0xc46)); - outb((tmp | 0x04), 0xc44); /* Select bank=1 */ - printk("%02x\n", inb(0xc46)); -#endif - - /* - * I/O port 0xc47 FM Address Decode Register. - * - * bank=0, bits 0xff: Decode enable selection for various FM address bits - * bank=1, bits 0xff: Reserved - */ - -#ifdef DEBUGXL - /* Debug printing */ - printk("Port 0xc47 (before): "); - outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ - printk("%02x ", inb(0xc47)); - outb((tmp | 0x04), 0xc44); /* Select bank=1 */ - printk("%02x\n", inb(0xc47)); -#endif - - outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ - outb((0x7c), 0xc47); /* FM decode enable bits = 0x7c */ - outb((tmp | 0x04), 0xc44); /* Select bank=1 */ - outb((0x00), 0xc47); /* Reserved bank1 = 0x00 */ - -#ifdef DEBUGXL - /* Debug printing */ - printk("Port 0xc47 (after): "); - outb((tmp & ~0x04), 0xc44); /* Select bank=0 */ - printk("%02x ", inb(0xc47)); - outb((tmp | 0x04), 0xc44); /* Select bank=1 */ - printk("%02x\n", inb(0xc47)); -#endif - - /* - * I/O port 0xc6f = Audio Disable Function Register - */ - -#ifdef DEBUGXL - printk("Port 0xc6f (before) = %02x\n", inb(0xc6f)); -#endif - - outb((0x80), 0xc6f); - -#ifdef DEBUGXL - printk("Port 0xc6f (after) = %02x\n", inb(0xc6f)); -#endif - - return 1; -} - -int probe_ms_sound(struct address_info *hw_config, struct resource *ports) -{ - unsigned char tmp; - - DDB(printk("Entered probe_ms_sound(%x, %d)\n", hw_config->io_base, hw_config->card_subtype)); - - if (hw_config->card_subtype == 1) /* Has no IRQ/DMA registers */ - { - /* check_opl3(0x388, hw_config); */ - return ad1848_detect(ports, NULL, hw_config->osp); - } - - if (deskpro_xl && hw_config->card_subtype == 2) /* Compaq Deskpro XL */ - { - if (!init_deskpro(hw_config)) - return 0; - } - - if (deskpro_m) /* Compaq Deskpro M */ - { - if (!init_deskpro_m(hw_config)) - return 0; - } - - /* - * Check if the IO port returns valid signature. The original MS Sound - * system returns 0x04 while some cards (AudioTrix Pro for example) - * return 0x00 or 0x0f. - */ - - if ((tmp = inb(hw_config->io_base + 3)) == 0xff) /* Bus float */ - { - int ret; - - DDB(printk("I/O address is inactive (%x)\n", tmp)); - if (!(ret = ad1848_detect(ports, NULL, hw_config->osp))) - return 0; - return 1; - } - DDB(printk("MSS signature = %x\n", tmp & 0x3f)); - if ((tmp & 0x3f) != 0x04 && - (tmp & 0x3f) != 0x0f && - (tmp & 0x3f) != 0x00) - { - int ret; - - MDB(printk(KERN_ERR "No MSS signature detected on port 0x%x (0x%x)\n", hw_config->io_base, (int) inb(hw_config->io_base + 3))); - DDB(printk("Trying to detect codec anyway but IRQ/DMA may not work\n")); - if (!(ret = ad1848_detect(ports, NULL, hw_config->osp))) - return 0; - - hw_config->card_subtype = 1; - return 1; - } - if ((hw_config->irq != 5) && - (hw_config->irq != 7) && - (hw_config->irq != 9) && - (hw_config->irq != 10) && - (hw_config->irq != 11) && - (hw_config->irq != 12)) - { - printk(KERN_ERR "MSS: Bad IRQ %d\n", hw_config->irq); - return 0; - } - if (hw_config->dma != 0 && hw_config->dma != 1 && hw_config->dma != 3) - { - printk(KERN_ERR "MSS: Bad DMA %d\n", hw_config->dma); - return 0; - } - /* - * Check that DMA0 is not in use with a 8 bit board. - */ - - if (hw_config->dma == 0 && inb(hw_config->io_base + 3) & 0x80) - { - printk(KERN_ERR "MSS: Can't use DMA0 with a 8 bit card/slot\n"); - return 0; - } - if (hw_config->irq > 7 && hw_config->irq != 9 && inb(hw_config->io_base + 3) & 0x80) - { - printk(KERN_ERR "MSS: Can't use IRQ%d with a 8 bit card/slot\n", hw_config->irq); - return 0; - } - return ad1848_detect(ports, NULL, hw_config->osp); -} - -void attach_ms_sound(struct address_info *hw_config, struct resource *ports, struct module *owner) -{ - static signed char interrupt_bits[12] = - { - -1, -1, -1, -1, -1, 0x00, -1, 0x08, -1, 0x10, 0x18, 0x20 - }; - signed char bits; - char dma2_bit = 0; - - static char dma_bits[4] = - { - 1, 2, 0, 3 - }; - - int config_port = hw_config->io_base + 0; - int version_port = hw_config->io_base + 3; - int dma = hw_config->dma; - int dma2 = hw_config->dma2; - - if (hw_config->card_subtype == 1) /* Has no IRQ/DMA registers */ - { - hw_config->slots[0] = ad1848_init("MS Sound System", ports, - hw_config->irq, - hw_config->dma, - hw_config->dma2, 0, - hw_config->osp, - owner); - return; - } - /* - * Set the IRQ and DMA addresses. - */ - - bits = interrupt_bits[hw_config->irq]; - if (bits == -1) - { - printk(KERN_ERR "MSS: Bad IRQ %d\n", hw_config->irq); - release_region(ports->start, 4); - release_region(ports->start - 4, 4); - return; - } - outb((bits | 0x40), config_port); - if ((inb(version_port) & 0x40) == 0) - printk(KERN_ERR "[MSS: IRQ Conflict?]\n"); - -/* - * Handle the capture DMA channel - */ - - if (dma2 != -1 && dma2 != dma) - { - if (!((dma == 0 && dma2 == 1) || - (dma == 1 && dma2 == 0) || - (dma == 3 && dma2 == 0))) - { /* Unsupported combination. Try to swap channels */ - int tmp = dma; - - dma = dma2; - dma2 = tmp; - } - if ((dma == 0 && dma2 == 1) || - (dma == 1 && dma2 == 0) || - (dma == 3 && dma2 == 0)) - { - dma2_bit = 0x04; /* Enable capture DMA */ - } - else - { - printk(KERN_WARNING "MSS: Invalid capture DMA\n"); - dma2 = dma; - } - } - else - { - dma2 = dma; - } - - hw_config->dma = dma; - hw_config->dma2 = dma2; - - outb((bits | dma_bits[dma] | dma2_bit), config_port); /* Write IRQ+DMA setup */ - - hw_config->slots[0] = ad1848_init("MS Sound System", ports, - hw_config->irq, - dma, dma2, 0, - hw_config->osp, - THIS_MODULE); -} - -void unload_ms_sound(struct address_info *hw_config) -{ - ad1848_unload(hw_config->io_base + 4, - hw_config->irq, - hw_config->dma, - hw_config->dma2, 0); - sound_unload_audiodev(hw_config->slots[0]); - release_region(hw_config->io_base, 4); -} - -#ifndef EXCLUDE_TIMERS - -/* - * Timer stuff (for /dev/music). - */ - -static unsigned int current_interval; - -static unsigned int ad1848_tmr_start(int dev, unsigned int usecs) -{ - unsigned long flags; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - unsigned long xtal_nsecs; /* nanoseconds per xtal oscillator tick */ - unsigned long divider; - - spin_lock_irqsave(&devc->lock,flags); - - /* - * Length of the timer interval (in nanoseconds) depends on the - * selected crystal oscillator. Check this from bit 0x01 of I8. - * - * AD1845 has just one oscillator which has cycle time of 10.050 us - * (when a 24.576 MHz xtal oscillator is used). - * - * Convert requested interval to nanoseconds before computing - * the timer divider. - */ - - if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) - xtal_nsecs = 10050; - else if (ad_read(devc, 8) & 0x01) - xtal_nsecs = 9920; - else - xtal_nsecs = 9969; - - divider = (usecs * 1000 + xtal_nsecs / 2) / xtal_nsecs; - - if (divider < 100) /* Don't allow shorter intervals than about 1ms */ - divider = 100; - - if (divider > 65535) /* Overflow check */ - divider = 65535; - - ad_write(devc, 21, (divider >> 8) & 0xff); /* Set upper bits */ - ad_write(devc, 20, divider & 0xff); /* Set lower bits */ - ad_write(devc, 16, ad_read(devc, 16) | 0x40); /* Start the timer */ - devc->timer_running = 1; - spin_unlock_irqrestore(&devc->lock,flags); - - return current_interval = (divider * xtal_nsecs + 500) / 1000; -} - -static void ad1848_tmr_reprogram(int dev) -{ - /* - * Audio driver has changed sampling rate so that a different xtal - * oscillator was selected. We have to reprogram the timer rate. - */ - - ad1848_tmr_start(dev, current_interval); - sound_timer_syncinterval(current_interval); -} - -static void ad1848_tmr_disable(int dev) -{ - unsigned long flags; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - - spin_lock_irqsave(&devc->lock,flags); - ad_write(devc, 16, ad_read(devc, 16) & ~0x40); - devc->timer_running = 0; - spin_unlock_irqrestore(&devc->lock,flags); -} - -static void ad1848_tmr_restart(int dev) -{ - unsigned long flags; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - - if (current_interval == 0) - return; - - spin_lock_irqsave(&devc->lock,flags); - ad_write(devc, 16, ad_read(devc, 16) | 0x40); - devc->timer_running = 1; - spin_unlock_irqrestore(&devc->lock,flags); -} - -static struct sound_lowlev_timer ad1848_tmr = -{ - 0, - 2, - ad1848_tmr_start, - ad1848_tmr_disable, - ad1848_tmr_restart -}; - -static int ad1848_tmr_install(int dev) -{ - if (timer_installed != -1) - return 0; /* Don't install another timer */ - - timer_installed = ad1848_tmr.dev = dev; - sound_timer_init(&ad1848_tmr, audio_devs[dev]->name); - - return 1; -} -#endif /* EXCLUDE_TIMERS */ - -EXPORT_SYMBOL(ad1848_detect); -EXPORT_SYMBOL(ad1848_init); -EXPORT_SYMBOL(ad1848_unload); -EXPORT_SYMBOL(ad1848_control); -EXPORT_SYMBOL(probe_ms_sound); -EXPORT_SYMBOL(attach_ms_sound); -EXPORT_SYMBOL(unload_ms_sound); - -static int __initdata io = -1; -static int __initdata irq = -1; -static int __initdata dma = -1; -static int __initdata dma2 = -1; -static int __initdata type = 0; - -module_param_hw(io, int, ioport, 0); /* I/O for a raw AD1848 card */ -module_param_hw(irq, int, irq, 0); /* IRQ to use */ -module_param_hw(dma, int, dma, 0); /* First DMA channel */ -module_param_hw(dma2, int, dma, 0); /* Second DMA channel */ -module_param(type, int, 0); /* Card type */ -module_param(deskpro_xl, bool, 0); /* Special magic for Deskpro XL boxen */ -module_param(deskpro_m, bool, 0); /* Special magic for Deskpro M box */ -module_param(soundpro, bool, 0); /* More special magic for SoundPro chips */ - -#ifdef CONFIG_PNP -module_param(isapnp, int, 0); -module_param(isapnpjump, int, 0); -module_param(reverse, bool, 0); -MODULE_PARM_DESC(isapnp, "When set to 0, Plug & Play support will be disabled"); -MODULE_PARM_DESC(isapnpjump, "Jumps to a specific slot in the driver's PnP table. Use the source, Luke."); -MODULE_PARM_DESC(reverse, "When set to 1, will reverse ISAPnP search order"); - -static struct pnp_dev *ad1848_dev = NULL; - -/* Please add new entries at the end of the table */ -static struct { - char *name; - unsigned short card_vendor, card_device, - vendor, function; - short mss_io, irq, dma, dma2; /* index into isapnp table */ - int type; -} ad1848_isapnp_list[] __initdata = { - {"CMI 8330 SoundPRO", - ISAPNP_VENDOR('C','M','I'), ISAPNP_DEVICE(0x0001), - ISAPNP_VENDOR('@','@','@'), ISAPNP_FUNCTION(0x0001), - 0, 0, 0,-1, 0}, - {"CS4232 based card", - ISAPNP_ANY_ID, ISAPNP_ANY_ID, - ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0000), - 0, 0, 0, 1, 0}, - {"CS4232 based card", - ISAPNP_ANY_ID, ISAPNP_ANY_ID, - ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0100), - 0, 0, 0, 1, 0}, - {"OPL3-SA2 WSS mode", - ISAPNP_ANY_ID, ISAPNP_ANY_ID, - ISAPNP_VENDOR('Y','M','H'), ISAPNP_FUNCTION(0x0021), - 1, 0, 0, 1, 1}, - {"Advanced Gravis InterWave Audio", - ISAPNP_VENDOR('G','R','V'), ISAPNP_DEVICE(0x0001), - ISAPNP_VENDOR('G','R','V'), ISAPNP_FUNCTION(0x0000), - 0, 0, 0, 1, 0}, - {NULL} -}; - -#ifdef MODULE -static struct isapnp_device_id id_table[] = { - { ISAPNP_VENDOR('C','M','I'), ISAPNP_DEVICE(0x0001), - ISAPNP_VENDOR('@','@','@'), ISAPNP_FUNCTION(0x0001), 0 }, - { ISAPNP_ANY_ID, ISAPNP_ANY_ID, - ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0000), 0 }, - { ISAPNP_ANY_ID, ISAPNP_ANY_ID, - ISAPNP_VENDOR('C','S','C'), ISAPNP_FUNCTION(0x0100), 0 }, - /* The main driver for this card is opl3sa2 - { ISAPNP_ANY_ID, ISAPNP_ANY_ID, - ISAPNP_VENDOR('Y','M','H'), ISAPNP_FUNCTION(0x0021), 0 }, - */ - { ISAPNP_VENDOR('G','R','V'), ISAPNP_DEVICE(0x0001), - ISAPNP_VENDOR('G','R','V'), ISAPNP_FUNCTION(0x0000), 0 }, - {0} -}; - -MODULE_DEVICE_TABLE(isapnp, id_table); -#endif - -static struct pnp_dev *activate_dev(char *devname, char *resname, struct pnp_dev *dev) -{ - int err; - - err = pnp_device_attach(dev); - if (err < 0) - return(NULL); - - if((err = pnp_activate_dev(dev)) < 0) { - printk(KERN_ERR "ad1848: %s %s config failed (out of resources?)[%d]\n", devname, resname, err); - - pnp_device_detach(dev); - - return(NULL); - } - audio_activated = 1; - return(dev); -} - -static struct pnp_dev __init *ad1848_init_generic(struct pnp_card *bus, - struct address_info *hw_config, int slot) -{ - - /* Configure Audio device */ - if((ad1848_dev = pnp_find_dev(bus, ad1848_isapnp_list[slot].vendor, ad1848_isapnp_list[slot].function, NULL))) - { - if((ad1848_dev = activate_dev(ad1848_isapnp_list[slot].name, "ad1848", ad1848_dev))) - { - hw_config->io_base = pnp_port_start(ad1848_dev, ad1848_isapnp_list[slot].mss_io); - hw_config->irq = pnp_irq(ad1848_dev, ad1848_isapnp_list[slot].irq); - hw_config->dma = pnp_dma(ad1848_dev, ad1848_isapnp_list[slot].dma); - if(ad1848_isapnp_list[slot].dma2 != -1) - hw_config->dma2 = pnp_dma(ad1848_dev, ad1848_isapnp_list[slot].dma2); - else - hw_config->dma2 = -1; - hw_config->card_subtype = ad1848_isapnp_list[slot].type; - } else - return(NULL); - } else - return(NULL); - - return(ad1848_dev); -} - -static int __init ad1848_isapnp_init(struct address_info *hw_config, struct pnp_card *bus, int slot) -{ - char *busname = bus->name[0] ? bus->name : ad1848_isapnp_list[slot].name; - - /* Initialize this baby. */ - - if(ad1848_init_generic(bus, hw_config, slot)) { - /* We got it. */ - - printk(KERN_NOTICE "ad1848: PnP reports '%s' at i/o %#x, irq %d, dma %d, %d\n", - busname, - hw_config->io_base, hw_config->irq, hw_config->dma, - hw_config->dma2); - return 1; - } - return 0; -} - -static int __init ad1848_isapnp_probe(struct address_info *hw_config) -{ - static int first = 1; - int i; - - /* Count entries in sb_isapnp_list */ - for (i = 0; ad1848_isapnp_list[i].card_vendor != 0; i++); - i--; - - /* Check and adjust isapnpjump */ - if( isapnpjump < 0 || isapnpjump > i) { - isapnpjump = reverse ? i : 0; - printk(KERN_ERR "ad1848: Valid range for isapnpjump is 0-%d. Adjusted to %d.\n", i, isapnpjump); - } - - if(!first || !reverse) - i = isapnpjump; - first = 0; - while(ad1848_isapnp_list[i].card_vendor != 0) { - static struct pnp_card *bus = NULL; - - while ((bus = pnp_find_card( - ad1848_isapnp_list[i].card_vendor, - ad1848_isapnp_list[i].card_device, - bus))) { - - if(ad1848_isapnp_init(hw_config, bus, i)) { - isapnpjump = i; /* start next search from here */ - return 0; - } - } - i += reverse ? -1 : 1; - } - - return -ENODEV; -} -#endif - - -static int __init init_ad1848(void) -{ - printk(KERN_INFO "ad1848/cs4248 codec driver Copyright (C) by Hannu Savolainen 1993-1996\n"); - -#ifdef CONFIG_PNP - if(isapnp && (ad1848_isapnp_probe(&cfg) < 0) ) { - printk(KERN_NOTICE "ad1848: No ISAPnP cards found, trying standard ones...\n"); - isapnp = 0; - } -#endif - - if(io != -1) { - struct resource *ports; - if( isapnp == 0 ) - { - if(irq == -1 || dma == -1) { - printk(KERN_WARNING "ad1848: must give I/O , IRQ and DMA.\n"); - return -EINVAL; - } - - cfg.irq = irq; - cfg.io_base = io; - cfg.dma = dma; - cfg.dma2 = dma2; - cfg.card_subtype = type; - } - - ports = request_region(io + 4, 4, "ad1848"); - - if (!ports) - return -EBUSY; - - if (!request_region(io, 4, "WSS config")) { - release_region(io + 4, 4); - return -EBUSY; - } - - if (!probe_ms_sound(&cfg, ports)) { - release_region(io + 4, 4); - release_region(io, 4); - return -ENODEV; - } - attach_ms_sound(&cfg, ports, THIS_MODULE); - loaded = 1; - } - return 0; -} - -static void __exit cleanup_ad1848(void) -{ - if(loaded) - unload_ms_sound(&cfg); - -#ifdef CONFIG_PNP - if(ad1848_dev){ - if(audio_activated) - pnp_device_detach(ad1848_dev); - } -#endif -} - -module_init(init_ad1848); -module_exit(cleanup_ad1848); - -#ifndef MODULE -static int __init setup_ad1848(char *str) -{ - /* io, irq, dma, dma2, type */ - int ints[6]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - io = ints[1]; - irq = ints[2]; - dma = ints[3]; - dma2 = ints[4]; - type = ints[5]; - - return 1; -} - -__setup("ad1848=", setup_ad1848); -#endif -MODULE_LICENSE("GPL"); diff --git a/sound/oss/ad1848.h b/sound/oss/ad1848.h deleted file mode 100644 index b95ebe28d426..000000000000 --- a/sound/oss/ad1848.h +++ /dev/null @@ -1,24 +0,0 @@ - -#include - -#define AD_F_CS4231 0x0001 /* Returned if a CS4232 (or compatible) detected */ -#define AD_F_CS4248 0x0001 /* Returned if a CS4248 (or compatible) detected */ - -#define AD1848_SET_XTAL 1 -#define AD1848_MIXER_REROUTE 2 - -#define AD1848_REROUTE(oldctl, newctl) \ - ad1848_control(AD1848_MIXER_REROUTE, ((oldctl)<<8)|(newctl)) - - -int ad1848_init(char *name, struct resource *ports, int irq, int dma_playback, - int dma_capture, int share_dma, int *osp, struct module *owner); -void ad1848_unload (int io_base, int irq, int dma_playback, int dma_capture, int share_dma); - -int ad1848_detect (struct resource *ports, int *flags, int *osp); -int ad1848_control(int cmd, int arg); - -void attach_ms_sound(struct address_info * hw_config, struct resource *ports, struct module * owner); - -int probe_ms_sound(struct address_info *hw_config, struct resource *ports); -void unload_ms_sound(struct address_info *hw_info); diff --git a/sound/oss/ad1848_mixer.h b/sound/oss/ad1848_mixer.h deleted file mode 100644 index 2cf719b5fbbc..000000000000 --- a/sound/oss/ad1848_mixer.h +++ /dev/null @@ -1,253 +0,0 @@ -/* - * sound/oss/ad1848_mixer.h - * - * Definitions for the mixer of AD1848 and compatible codecs. - */ - -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ - - -/* - * The AD1848 codec has generic input lines called Line, Aux1 and Aux2. - * Sound card manufacturers have connected actual inputs (CD, synth, line, - * etc) to these inputs in different order. Therefore it's difficult - * to assign mixer channels to these inputs correctly. The following - * contains two alternative mappings. The first one is for GUS MAX and - * the second is just a generic one (line1, line2 and line3). - * (Actually this is not a mapping but rather some kind of interleaving - * solution). - */ -#define MODE1_REC_DEVICES (SOUND_MASK_LINE3 | SOUND_MASK_MIC | \ - SOUND_MASK_LINE1 | SOUND_MASK_IMIX) - -#define SPRO_REC_DEVICES (SOUND_MASK_LINE | SOUND_MASK_MIC | \ - SOUND_MASK_CD | SOUND_MASK_LINE1) - -#define MODE1_MIXER_DEVICES (SOUND_MASK_LINE1 | SOUND_MASK_MIC | \ - SOUND_MASK_LINE2 | \ - SOUND_MASK_IGAIN | \ - SOUND_MASK_PCM | SOUND_MASK_IMIX) - -#define MODE2_MIXER_DEVICES (SOUND_MASK_LINE1 | SOUND_MASK_LINE2 | \ - SOUND_MASK_MIC | \ - SOUND_MASK_LINE3 | SOUND_MASK_SPEAKER | \ - SOUND_MASK_IGAIN | \ - SOUND_MASK_PCM | SOUND_MASK_IMIX) - -#define MODE3_MIXER_DEVICES (MODE2_MIXER_DEVICES | SOUND_MASK_VOLUME) - -/* OPTi 82C930 has no IMIX level control, but it can still be selected as an - * input - */ -#define C930_MIXER_DEVICES (SOUND_MASK_LINE1 | SOUND_MASK_LINE2 | \ - SOUND_MASK_MIC | SOUND_MASK_VOLUME | \ - SOUND_MASK_LINE3 | \ - SOUND_MASK_IGAIN | SOUND_MASK_PCM) - -#define SPRO_MIXER_DEVICES (SOUND_MASK_VOLUME | SOUND_MASK_PCM | \ - SOUND_MASK_LINE | SOUND_MASK_SYNTH | \ - SOUND_MASK_CD | SOUND_MASK_MIC | \ - SOUND_MASK_SPEAKER | SOUND_MASK_LINE1 | \ - SOUND_MASK_OGAIN) - -struct mixer_def { - unsigned int regno:6; /* register number for volume */ - unsigned int polarity:1; /* volume polarity: 0=normal, 1=reversed */ - unsigned int bitpos:3; /* position of bits in register for volume */ - unsigned int nbits:3; /* number of bits in register for volume */ - unsigned int mutereg:6; /* register number for mute bit */ - unsigned int mutepol:1; /* mute polarity: 0=normal, 1=reversed */ - unsigned int mutepos:4; /* position of mute bit in register */ - unsigned int recreg:6; /* register number for recording bit */ - unsigned int recpol:1; /* recording polarity: 0=normal, 1=reversed */ - unsigned int recpos:4; /* position of recording bit in register */ -}; - -static char mix_cvt[101] = { - 0, 0, 3, 7,10,13,16,19,21,23,26,28,30,32,34,35,37,39,40,42, - 43,45,46,47,49,50,51,52,53,55,56,57,58,59,60,61,62,63,64,65, - 65,66,67,68,69,70,70,71,72,73,73,74,75,75,76,77,77,78,79,79, - 80,81,81,82,82,83,84,84,85,85,86,86,87,87,88,88,89,89,90,90, - 91,91,92,92,93,93,94,94,95,95,96,96,96,97,97,98,98,98,99,99, - 100 -}; - -typedef struct mixer_def mixer_ent; -typedef mixer_ent mixer_ents[2]; - -/* - * Most of the mixer entries work in backwards. Setting the polarity field - * makes them to work correctly. - * - * The channel numbering used by individual sound cards is not fixed. Some - * cards have assigned different meanings for the AUX1, AUX2 and LINE inputs. - * The current version doesn't try to compensate this. - */ - -#define MIX_ENT(name, reg_l, pola_l, pos_l, len_l, reg_r, pola_r, pos_r, len_r, mute_bit) \ - [name] = {{reg_l, pola_l, pos_l, len_l, reg_l, 0, mute_bit, 0, 0, 8}, \ - {reg_r, pola_r, pos_r, len_r, reg_r, 0, mute_bit, 0, 0, 8}} - -#define MIX_ENT2(name, reg_l, pola_l, pos_l, len_l, mute_reg_l, mute_pola_l, mute_pos_l, \ - rec_reg_l, rec_pola_l, rec_pos_l, \ - reg_r, pola_r, pos_r, len_r, mute_reg_r, mute_pola_r, mute_pos_r, \ - rec_reg_r, rec_pola_r, rec_pos_r) \ - [name] = {{reg_l, pola_l, pos_l, len_l, mute_reg_l, mute_pola_l, mute_pos_l, \ - rec_reg_l, rec_pola_l, rec_pos_l}, \ - {reg_r, pola_r, pos_r, len_r, mute_reg_r, mute_pola_r, mute_pos_r, \ - rec_reg_r, rec_pola_r, rec_pos_r}} - -static mixer_ents ad1848_mix_devices[32] = { - MIX_ENT(SOUND_MIXER_VOLUME, 27, 1, 0, 4, 29, 1, 0, 4, 8), - MIX_ENT(SOUND_MIXER_BASS, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_TREBLE, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_SYNTH, 4, 1, 0, 5, 5, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_PCM, 6, 1, 0, 6, 7, 1, 0, 6, 7), - MIX_ENT(SOUND_MIXER_SPEAKER, 26, 1, 0, 4, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_LINE, 18, 1, 0, 5, 19, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_MIC, 0, 0, 5, 1, 1, 0, 5, 1, 8), - MIX_ENT(SOUND_MIXER_CD, 2, 1, 0, 5, 3, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_IMIX, 13, 1, 2, 6, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_ALTPCM, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_RECLEV, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_IGAIN, 0, 0, 0, 4, 1, 0, 0, 4, 8), - MIX_ENT(SOUND_MIXER_OGAIN, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_LINE1, 2, 1, 0, 5, 3, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_LINE2, 4, 1, 0, 5, 5, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_LINE3, 18, 1, 0, 5, 19, 1, 0, 5, 7) -}; - -static mixer_ents iwave_mix_devices[32] = { - MIX_ENT(SOUND_MIXER_VOLUME, 25, 1, 0, 5, 27, 1, 0, 5, 8), - MIX_ENT(SOUND_MIXER_BASS, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_TREBLE, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_SYNTH, 4, 1, 0, 5, 5, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_PCM, 6, 1, 0, 6, 7, 1, 0, 6, 7), - MIX_ENT(SOUND_MIXER_SPEAKER, 26, 1, 0, 4, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_LINE, 18, 1, 0, 5, 19, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_MIC, 0, 0, 5, 1, 1, 0, 5, 1, 8), - MIX_ENT(SOUND_MIXER_CD, 2, 1, 0, 5, 3, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_IMIX, 16, 1, 0, 5, 17, 1, 0, 5, 8), - MIX_ENT(SOUND_MIXER_ALTPCM, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_RECLEV, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_IGAIN, 0, 0, 0, 4, 1, 0, 0, 4, 8), - MIX_ENT(SOUND_MIXER_OGAIN, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_LINE1, 2, 1, 0, 5, 3, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_LINE2, 4, 1, 0, 5, 5, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_LINE3, 18, 1, 0, 5, 19, 1, 0, 5, 7) -}; - -static mixer_ents cs42xb_mix_devices[32] = { - /* Digital master volume actually has seven bits, but we only use - six to avoid the discontinuity when the analog gain kicks in. */ - MIX_ENT(SOUND_MIXER_VOLUME, 46, 1, 0, 6, 47, 1, 0, 6, 7), - MIX_ENT(SOUND_MIXER_BASS, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_TREBLE, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_SYNTH, 4, 1, 0, 5, 5, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_PCM, 6, 1, 0, 6, 7, 1, 0, 6, 7), - MIX_ENT(SOUND_MIXER_SPEAKER, 26, 1, 0, 4, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_LINE, 18, 1, 0, 5, 19, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_MIC, 34, 1, 0, 5, 35, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_CD, 2, 1, 0, 5, 3, 1, 0, 5, 7), - /* For the IMIX entry, it was not possible to use the MIX_ENT macro - because the mute bit is in different positions for the two - channels and requires reverse polarity. */ - [SOUND_MIXER_IMIX] = {{13, 1, 2, 6, 13, 1, 0, 0, 0, 8}, - {42, 1, 0, 6, 42, 1, 7, 0, 0, 8}}, - MIX_ENT(SOUND_MIXER_ALTPCM, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_RECLEV, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_IGAIN, 0, 0, 0, 4, 1, 0, 0, 4, 8), - MIX_ENT(SOUND_MIXER_OGAIN, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_LINE1, 2, 1, 0, 5, 3, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_LINE2, 4, 1, 0, 5, 5, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_LINE3, 38, 1, 0, 6, 39, 1, 0, 6, 7) -}; - -/* OPTi 82C930 has somewhat different port addresses. - * Note: VOLUME == SPEAKER, SYNTH == LINE2, LINE == LINE3, CD == LINE1 - * VOLUME, SYNTH, LINE, CD are not enabled above. - * MIC is level of mic monitoring direct to output. Same for CD, LINE, etc. - */ -static mixer_ents c930_mix_devices[32] = { - MIX_ENT(SOUND_MIXER_VOLUME, 22, 1, 1, 5, 23, 1, 1, 5, 7), - MIX_ENT(SOUND_MIXER_BASS, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_TREBLE, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_SYNTH, 4, 1, 1, 4, 5, 1, 1, 4, 7), - MIX_ENT(SOUND_MIXER_PCM, 6, 1, 0, 5, 7, 1, 0, 5, 7), - MIX_ENT(SOUND_MIXER_SPEAKER, 22, 1, 1, 5, 23, 1, 1, 5, 7), - MIX_ENT(SOUND_MIXER_LINE, 18, 1, 1, 4, 19, 1, 1, 4, 7), - MIX_ENT(SOUND_MIXER_MIC, 20, 1, 1, 4, 21, 1, 1, 4, 7), - MIX_ENT(SOUND_MIXER_CD, 2, 1, 1, 4, 3, 1, 1, 4, 7), - MIX_ENT(SOUND_MIXER_IMIX, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_ALTPCM, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_RECLEV, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_IGAIN, 0, 0, 0, 4, 1, 0, 0, 4, 8), - MIX_ENT(SOUND_MIXER_OGAIN, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT(SOUND_MIXER_LINE1, 2, 1, 1, 4, 3, 1, 1, 4, 7), - MIX_ENT(SOUND_MIXER_LINE2, 4, 1, 1, 4, 5, 1, 1, 4, 7), - MIX_ENT(SOUND_MIXER_LINE3, 18, 1, 1, 4, 19, 1, 1, 4, 7) -}; - -static mixer_ents spro_mix_devices[32] = { - MIX_ENT (SOUND_MIXER_VOLUME, 19, 0, 4, 4, 19, 0, 0, 4, 8), - MIX_ENT (SOUND_MIXER_BASS, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT (SOUND_MIXER_TREBLE, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT2(SOUND_MIXER_SYNTH, 4, 1, 1, 4, 23, 0, 3, 0, 0, 8, - 5, 1, 1, 4, 23, 0, 3, 0, 0, 8), - MIX_ENT (SOUND_MIXER_PCM, 6, 1, 1, 4, 7, 1, 1, 4, 8), - MIX_ENT (SOUND_MIXER_SPEAKER, 18, 0, 3, 2, 0, 0, 0, 0, 8), - MIX_ENT2(SOUND_MIXER_LINE, 20, 0, 4, 4, 17, 1, 4, 16, 0, 2, - 20, 0, 0, 4, 17, 1, 3, 16, 0, 1), - MIX_ENT2(SOUND_MIXER_MIC, 18, 0, 0, 3, 17, 1, 0, 16, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0), - MIX_ENT2(SOUND_MIXER_CD, 21, 0, 4, 4, 17, 1, 2, 16, 0, 4, - 21, 0, 0, 4, 17, 1, 1, 16, 0, 3), - MIX_ENT (SOUND_MIXER_IMIX, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT (SOUND_MIXER_ALTPCM, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT (SOUND_MIXER_RECLEV, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT (SOUND_MIXER_IGAIN, 0, 0, 0, 0, 0, 0, 0, 0, 8), - MIX_ENT (SOUND_MIXER_OGAIN, 17, 1, 6, 1, 0, 0, 0, 0, 8), - /* This is external wavetable */ - MIX_ENT2(SOUND_MIXER_LINE1, 22, 0, 4, 4, 23, 1, 1, 23, 0, 4, - 22, 0, 0, 4, 23, 1, 0, 23, 0, 5), -}; - -static int default_mixer_levels[32] = -{ - 0x3232, /* Master Volume */ - 0x3232, /* Bass */ - 0x3232, /* Treble */ - 0x4b4b, /* FM */ - 0x3232, /* PCM */ - 0x1515, /* PC Speaker */ - 0x2020, /* Ext Line */ - 0x1010, /* Mic */ - 0x4b4b, /* CD */ - 0x0000, /* Recording monitor */ - 0x4b4b, /* Second PCM */ - 0x4b4b, /* Recording level */ - 0x4b4b, /* Input gain */ - 0x4b4b, /* Output gain */ - 0x2020, /* Line1 */ - 0x2020, /* Line2 */ - 0x1515 /* Line3 (usually line in)*/ -}; - -#define LEFT_CHN 0 -#define RIGHT_CHN 1 - -/* - * Channel enable bits for ioctl(SOUND_MIXER_PRIVATE1) - */ - -#ifndef AUDIO_SPEAKER -#define AUDIO_SPEAKER 0x01 /* Enable mono output */ -#define AUDIO_HEADPHONE 0x02 /* Sparc only */ -#define AUDIO_LINE_OUT 0x04 /* Sparc only */ -#endif diff --git a/sound/oss/aedsp16.c b/sound/oss/aedsp16.c deleted file mode 100644 index f058ed6bdb69..000000000000 --- a/sound/oss/aedsp16.c +++ /dev/null @@ -1,1373 +0,0 @@ -/* - sound/oss/aedsp16.c - - Audio Excel DSP 16 software configuration routines - Copyright (C) 1995,1996,1997,1998 Riccardo Facchetti (fizban@tin.it) - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - - */ -/* - * Include the main OSS Lite header file. It include all the os, OSS Lite, etc - * headers needed by this source. - */ -#include -#include -#include -#include "sound_config.h" - -/* - - READ THIS - - This module started to configure the Audio Excel DSP 16 Sound Card. - Now works with the SC-6000 (old aedsp16) and new SC-6600 based cards. - - NOTE: I have NO idea about Audio Excel DSP 16 III. If someone owns this - audio card and want to see the kernel support for it, please contact me. - - Audio Excel DSP 16 is an SB pro II, Microsoft Sound System and MPU-401 - compatible card. - It is software-only configurable (no jumpers to hard-set irq/dma/mpu-irq), - so before this module, the only way to configure the DSP under linux was - boot the MS-DOS loading the sound.sys device driver (this driver soft- - configure the sound board hardware by massaging someone of its registers), - and then ctrl-alt-del to boot linux with the DSP configured by the DOS - driver. - - This module works configuring your Audio Excel DSP 16's irq, dma and - mpu-401-irq. The OSS Lite routines rely on the fact that if the - hardware is there, they can detect it. The problem with AEDSP16 is - that no hardware can be found by the probe routines if the sound card - is not configured properly. Sometimes the kernel probe routines can find - an SBPRO even when the card is not configured (this is the standard setup - of the card), but the SBPRO emulation don't work well if the card is not - properly initialized. For this reason - - aedsp16_init_board() - - routine is called before the OSS Lite probe routines try to detect the - hardware. - - NOTE (READ THE NOTE TOO, IT CONTAIN USEFUL INFORMATIONS) - - NOTE: Now it works with SC-6000 and SC-6600 based audio cards. The new cards - have no jumper switch at all. No more WSS or MPU-401 I/O port switches. They - have to be configured by software. - - NOTE: The driver is merged with the new OSS Lite sound driver. It works - as a lowlevel driver. - - The Audio Excel DSP 16 Sound Card emulates both SBPRO and MSS; - the OSS Lite sound driver can be configured for SBPRO and MSS cards - at the same time, but the aedsp16 can't be two cards!! - When we configure it, we have to choose the SBPRO or the MSS emulation - for AEDSP16. We also can install a *REAL* card of the other type (see [1]). - - NOTE: If someone can test the combination AEDSP16+MSS or AEDSP16+SBPRO - please let me know if it works. - - The MPU-401 support can be compiled in together with one of the other - two operating modes. - - NOTE: This is something like plug-and-play: we have only to plug - the AEDSP16 board in the socket, and then configure and compile - a kernel that uses the AEDSP16 software configuration capability. - No jumper setting is needed! - - For example, if you want AEDSP16 to be an SBPro, on irq 10, dma 3 - you have just to make config the OSS Lite package, configuring - the AEDSP16 sound card, then activating the SBPro emulation mode - and at last configuring IRQ and DMA. - Compile the kernel and run it. - - NOTE: This means for SC-6000 cards that you can choose irq and dma, - but not the I/O addresses. To change I/O addresses you have to set - them with jumpers. For SC-6600 cards you have no jumpers so you have - to set up your full card configuration in the make config. - - You can change the irq/dma/mirq settings WITHOUT THE NEED to open - your computer and massage the jumpers (there are no irq/dma/mirq - jumpers to be configured anyway, only I/O BASE values have to be - configured with jumpers) - - For some ununderstandable reason, the card default of irq 7, dma 1, - don't work for me. Seems to be an IRQ or DMA conflict. Under heavy - HDD work, the kernel start to erupt out a lot of messages like: - - 'Sound: DMA timed out - IRQ/DRQ config error?' - - For what I can say, I have NOT any conflict at irq 7 (under linux I'm - using the lp polling driver), and dma line 1 is unused as stated by - /proc/dma. I can suppose this is a bug of AEDSP16. I know my hardware so - I'm pretty sure I have not any conflict, but may be I'm wrong. Who knows! - Anyway a setting of irq 10, dma 3 works really fine. - - NOTE: if someone can use AEDSP16 with irq 7, dma 1, please let me know - the emulation mode, all the installed hardware and the hardware - configuration (irq and dma settings of all the hardware). - - This init module should work with SBPRO+MSS, when one of the two is - the AEDSP16 emulation and the other the real card. (see [1]) - For example: - - AEDSP16 (0x220) in SBPRO emu (0x220) + real MSS + other - AEDSP16 (0x220) in MSS emu + real SBPRO (0x240) + other - - MPU401 should work. (see [2]) - - [1] - --- - Date: Mon, 29 Jul 1997 08:35:40 +0100 - From: Mr S J Greenaway - - [...] - Just to let you know got my Audio Excel (emulating a MSS) working - with my original SB16, thanks for the driver! - [...] - --- - - [2] Not tested by me for lack of hardware. - - TODO, WISHES AND TECH - - - About I/O ports allocation - - - Request the 2x0h region (port base) in any case if we are using this card. - - NOTE: the "aedsp16 (base)" string with which we are requesting the aedsp16 - port base region (see code) does not mean necessarily that we are emulating - sbpro. Even if this region is the sbpro I/O ports region, we use this - region to access the control registers of the card, and if emulating - sbpro, I/O sbpro registers too. If we are emulating MSS, the sbpro - registers are not used, in no way, to emulate an sbpro: they are - used only for configuration purposes. - - Started Fri Mar 17 16:13:18 MET 1995 - - v0.1 (ALPHA, was a user-level program called AudioExcelDSP16.c) - - Initial code. - v0.2 (ALPHA) - - Cleanups. - - Integrated with Linux voxware v 2.90-2 kernel sound driver. - - SoundBlaster Pro mode configuration. - - Microsoft Sound System mode configuration. - - MPU-401 mode configuration. - v0.3 (ALPHA) - - Cleanups. - - Rearranged the code to let aedsp16_init_board be more general. - - Erased the REALLY_SLOW_IO. We don't need it. Erased the linux/io.h - inclusion too. We rely on os.h - - Used the to get a variable - len string (we are not sure about the len of Copyright string). - This works with any SB and compatible. - - Added the code to request_region at device init (should go in - the main body of voxware). - v0.4 (BETA) - - Better configure.c patch for aedsp16 configuration (better - logic of inclusion of AEDSP16 support) - - Modified the conditional compilation to better support more than - one sound card of the emulated type (read the NOTES above) - - Moved the sb init routine from the attach to the very first - probe in sb_card.c - - Rearrangements and cleanups - - Wiped out some unnecessary code and variables: this is kernel - code so it is better save some TEXT and DATA - - Fixed the request_region code. We must allocate the aedsp16 (sbpro) - I/O ports in any case because they are used to access the DSP - configuration registers and we can not allow anyone to get them. - v0.5 - - cleanups on comments - - prep for diffs against v3.0-proto-950402 - v0.6 - - removed the request_region()s when compiling the MODULE sound.o - because we are not allowed (by the actual voxware structure) to - release_region() - v0.7 (pre ALPHA, not distributed) - - started porting this module to kernel 1.3.84. Dummy probe/attach - routines. - v0.8 (ALPHA) - - attached all the init routines. - v0.9 (BETA) - - Integrated with linux-pre2.0.7 - - Integrated with configuration scripts. - - Cleaned up and beautyfied the code. - v0.9.9 (BETA) - - Thanks to Piercarlo Grandi: corrected the conditonal compilation code. - Now only the code configured is compiled in, with some memory saving. - v0.9.10 - - Integration into the sound/lowlevel/ section of the sound driver. - - Re-organized the code. - v0.9.11 (not distributed) - - Rewritten the init interface-routines to initialize the AEDSP16 in - one shot. - - More cosmetics. - - SC-6600 support. - - More soft/hard configuration. - v0.9.12 - - Refined the v0.9.11 code with conditional compilation to distinguish - between SC-6000 and SC-6600 code. - v1.0.0 - - Prep for merging with OSS Lite and Linux kernel 2.1.13 - - Corrected a bug in request/check/release region calls (thanks to the - new kernel exception handling). - v1.1 - - Revamped for integration with new modularized sound drivers: to enhance - the flexibility of modular version, I have removed all the conditional - compilation for SBPRO, MPU and MSS code. Now it is all managed with - the ae_config structure. - v1.2 - - Module informations added. - - Removed aedsp16_delay_10msec(), now using mdelay(10) - - All data and funcs moved to .*.init section. - v1.3 - Arnaldo Carvalho de Melo - 2000/09/27 - - got rid of check_region - - Known Problems: - - Audio Excel DSP 16 III don't work with this driver. - - Credits: - Many thanks to Gerald Britton . He helped me a - lot in testing the 0.9.11 and 0.9.12 versions of this driver. - - */ - - -#define VERSION "1.3" /* Version of Audio Excel DSP 16 driver */ - -#undef AEDSP16_DEBUG /* Define this to 1 to enable debug code */ -#undef AEDSP16_DEBUG_MORE /* Define this to 1 to enable more debug */ -#undef AEDSP16_INFO /* Define this to 1 to enable info code */ - -#if defined(AEDSP16_DEBUG) -# define DBG(x) printk x -# if defined(AEDSP16_DEBUG_MORE) -# define DBG1(x) printk x -# else -# define DBG1(x) -# endif -#else -# define DBG(x) -# define DBG1(x) -#endif - -/* - * Misc definitions - */ -#define TRUE 1 -#define FALSE 0 - -/* - * Region Size for request/check/release region. - */ -#define IOBASE_REGION_SIZE 0x10 - -/* - * Hardware related defaults - */ -#define DEF_AEDSP16_IOB 0x220 /* 0x220(default) 0x240 */ -#define DEF_AEDSP16_IRQ 7 /* 5 7(default) 9 10 11 */ -#define DEF_AEDSP16_MRQ 0 /* 5 7 9 10 0(default), 0 means disable */ -#define DEF_AEDSP16_DMA 1 /* 0 1(default) 3 */ - -/* - * Commands of AEDSP16's DSP (SBPRO+special). - * Some of them are COMMAND_xx, in the future they may change. - */ -#define WRITE_MDIRQ_CFG 0x50 /* Set M&I&DRQ mask (the real config) */ -#define COMMAND_52 0x52 /* */ -#define READ_HARD_CFG 0x58 /* Read Hardware Config (I/O base etc) */ -#define COMMAND_5C 0x5c /* */ -#define COMMAND_60 0x60 /* */ -#define COMMAND_66 0x66 /* */ -#define COMMAND_6C 0x6c /* */ -#define COMMAND_6E 0x6e /* */ -#define COMMAND_88 0x88 /* */ -#define DSP_INIT_MSS 0x8c /* Enable Microsoft Sound System mode */ -#define COMMAND_C5 0xc5 /* */ -#define GET_DSP_VERSION 0xe1 /* Get DSP Version */ -#define GET_DSP_COPYRIGHT 0xe3 /* Get DSP Copyright */ - -/* - * Offsets of AEDSP16 DSP I/O ports. The offset is added to base I/O port - * to have the actual I/O port. - * Register permissions are: - * (wo) == Write Only - * (ro) == Read Only - * (w-) == Write - * (r-) == Read - */ -#define DSP_RESET 0x06 /* offset of DSP RESET (wo) */ -#define DSP_READ 0x0a /* offset of DSP READ (ro) */ -#define DSP_WRITE 0x0c /* offset of DSP WRITE (w-) */ -#define DSP_COMMAND 0x0c /* offset of DSP COMMAND (w-) */ -#define DSP_STATUS 0x0c /* offset of DSP STATUS (r-) */ -#define DSP_DATAVAIL 0x0e /* offset of DSP DATA AVAILABLE (ro) */ - - -#define RETRY 10 /* Various retry values on I/O opera- */ -#define STATUSRETRY 1000 /* tions. Sometimes we have to */ -#define HARDRETRY 500000 /* wait for previous cmd to complete */ - -/* - * Size of character arrays that store name and version of sound card - */ -#define CARDNAMELEN 15 /* Size of the card's name in chars */ -#define CARDVERLEN 10 /* Size of the card's version in chars */ -#define CARDVERDIGITS 2 /* Number of digits in the version */ - -#if defined(CONFIG_SC6600) -/* - * Bitmapped flags of hard configuration - */ -/* - * Decode macros (xl == low byte, xh = high byte) - */ -#define IOBASE(xl) ((xl & 0x01)?0x240:0x220) -#define JOY(xl) (xl & 0x02) -#define MPUADDR(xl) ( \ - (xl & 0x0C)?0x330: \ - (xl & 0x08)?0x320: \ - (xl & 0x04)?0x310: \ - 0x300) -#define WSSADDR(xl) ((xl & 0x10)?0xE80:0x530) -#define CDROM(xh) (xh & 0x20) -#define CDROMADDR(xh) (((xh & 0x1F) << 4) + 0x200) -/* - * Encode macros - */ -#define BLDIOBASE(xl, val) { \ - xl &= ~0x01; \ - if (val == 0x240) \ - xl |= 0x01; \ - } -#define BLDJOY(xl, val) { \ - xl &= ~0x02; \ - if (val == 1) \ - xl |= 0x02; \ - } -#define BLDMPUADDR(xl, val) { \ - xl &= ~0x0C; \ - switch (val) { \ - case 0x330: \ - xl |= 0x0C; \ - break; \ - case 0x320: \ - xl |= 0x08; \ - break; \ - case 0x310: \ - xl |= 0x04; \ - break; \ - case 0x300: \ - xl |= 0x00; \ - break; \ - default: \ - xl |= 0x00; \ - break; \ - } \ - } -#define BLDWSSADDR(xl, val) { \ - xl &= ~0x10; \ - if (val == 0xE80) \ - xl |= 0x10; \ - } -#define BLDCDROM(xh, val) { \ - xh &= ~0x20; \ - if (val == 1) \ - xh |= 0x20; \ - } -#define BLDCDROMADDR(xh, val) { \ - int tmp = val; \ - tmp -= 0x200; \ - tmp >>= 4; \ - tmp &= 0x1F; \ - xh |= tmp; \ - xh &= 0x7F; \ - xh |= 0x40; \ - } -#endif /* CONFIG_SC6600 */ - -/* - * Bit mapped flags for calling aedsp16_init_board(), and saving the current - * emulation mode. - */ -#define INIT_NONE (0 ) -#define INIT_SBPRO (1<<0) -#define INIT_MSS (1<<1) -#define INIT_MPU401 (1<<2) - -static int soft_cfg __initdata = 0; /* bitmapped config */ -static int soft_cfg_mss __initdata = 0; /* bitmapped mss config */ -static int ver[CARDVERDIGITS] __initdata = {0, 0}; /* DSP Ver: - hi->ver[0] lo->ver[1] */ - -#if defined(CONFIG_SC6600) -static int hard_cfg[2] /* lo<-hard_cfg[0] hi<-hard_cfg[1] */ - __initdata = { 0, 0}; -#endif /* CONFIG_SC6600 */ - -#if defined(CONFIG_SC6600) -/* Decoded hard configuration */ -struct d_hcfg { - int iobase; - int joystick; - int mpubase; - int wssbase; - int cdrom; - int cdrombase; -}; - -static struct d_hcfg decoded_hcfg __initdata = {0, }; - -#endif /* CONFIG_SC6600 */ - -/* orVals contain the values to be or'ed */ -struct orVals { - int val; /* irq|mirq|dma */ - int or; /* soft_cfg |= TheStruct.or */ -}; - -/* aedsp16_info contain the audio card configuration */ -struct aedsp16_info { - int base_io; /* base I/O address for accessing card */ - int irq; /* irq value for DSP I/O */ - int mpu_irq; /* irq for mpu401 interface I/O */ - int dma; /* dma value for DSP I/O */ - int mss_base; /* base I/O for Microsoft Sound System */ - int mpu_base; /* base I/O for MPU-401 emulation */ - int init; /* Initialization status of the card */ -}; - -/* - * Magic values that the DSP will eat when configuring irq/mirq/dma - */ -/* DSP IRQ conversion array */ -static struct orVals orIRQ[] __initdata = { - {0x05, 0x28}, - {0x07, 0x08}, - {0x09, 0x10}, - {0x0a, 0x18}, - {0x0b, 0x20}, - {0x00, 0x00} -}; - -/* MPU-401 IRQ conversion array */ -static struct orVals orMIRQ[] __initdata = { - {0x05, 0x04}, - {0x07, 0x44}, - {0x09, 0x84}, - {0x0a, 0xc4}, - {0x00, 0x00} -}; - -/* DMA Channels conversion array */ -static struct orVals orDMA[] __initdata = { - {0x00, 0x01}, - {0x01, 0x02}, - {0x03, 0x03}, - {0x00, 0x00} -}; - -static struct aedsp16_info ae_config = { - .base_io = DEF_AEDSP16_IOB, - .irq = DEF_AEDSP16_IRQ, - .mpu_irq = DEF_AEDSP16_MRQ, - .dma = DEF_AEDSP16_DMA, - .mss_base = -1, - .mpu_base = -1, - .init = INIT_NONE -}; - -/* - * Buffers to store audio card informations - */ -static char DSPCopyright[CARDNAMELEN + 1] __initdata = {0, }; -static char DSPVersion[CARDVERLEN + 1] __initdata = {0, }; - -static int __init aedsp16_wait_data(int port) -{ - int loop = STATUSRETRY; - unsigned char ret = 0; - - DBG1(("aedsp16_wait_data (0x%x): ", port)); - - do { - ret = inb(port + DSP_DATAVAIL); - /* - * Wait for data available (bit 7 of ret == 1) - */ - } while (!(ret & 0x80) && loop--); - - if (ret & 0x80) { - DBG1(("success.\n")); - return TRUE; - } - - DBG1(("failure.\n")); - return FALSE; -} - -static int __init aedsp16_read(int port) -{ - int inbyte; - - DBG((" Read DSP Byte (0x%x): ", port)); - - if (aedsp16_wait_data(port) == FALSE) { - DBG(("failure.\n")); - return -1; - } - - inbyte = inb(port + DSP_READ); - - DBG(("read [0x%x]/{%c}.\n", inbyte, inbyte)); - - return inbyte; -} - -static int __init aedsp16_test_dsp(int port) -{ - return ((aedsp16_read(port) == 0xaa) ? TRUE : FALSE); -} - -static int __init aedsp16_dsp_reset(int port) -{ - /* - * Reset DSP - */ - - DBG(("Reset DSP:\n")); - - outb(1, (port + DSP_RESET)); - udelay(10); - outb(0, (port + DSP_RESET)); - udelay(10); - udelay(10); - if (aedsp16_test_dsp(port) == TRUE) { - DBG(("success.\n")); - return TRUE; - } else - DBG(("failure.\n")); - return FALSE; -} - -static int __init aedsp16_write(int port, int cmd) -{ - unsigned char ret; - int loop = HARDRETRY; - - DBG((" Write DSP Byte (0x%x) [0x%x]: ", port, cmd)); - - do { - ret = inb(port + DSP_STATUS); - /* - * DSP ready to receive data if bit 7 of ret == 0 - */ - if (!(ret & 0x80)) { - outb(cmd, port + DSP_COMMAND); - DBG(("success.\n")); - return 0; - } - } while (loop--); - - DBG(("timeout.\n")); - printk("[AEDSP16] DSP Command (0x%x) timeout.\n", cmd); - - return -1; -} - -#if defined(CONFIG_SC6600) - -#if defined(AEDSP16_INFO) || defined(AEDSP16_DEBUG) -void __init aedsp16_pinfo(void) { - DBG(("\n Base address: %x\n", decoded_hcfg.iobase)); - DBG((" Joystick : %s present\n", decoded_hcfg.joystick?"":" not")); - DBG((" WSS addr : %x\n", decoded_hcfg.wssbase)); - DBG((" MPU-401 addr: %x\n", decoded_hcfg.mpubase)); - DBG((" CDROM : %s present\n", (decoded_hcfg.cdrom!=4)?"":" not")); - DBG((" CDROMADDR : %x\n\n", decoded_hcfg.cdrombase)); -} -#endif - -static void __init aedsp16_hard_decode(void) { - - DBG((" aedsp16_hard_decode: 0x%x, 0x%x\n", hard_cfg[0], hard_cfg[1])); - -/* - * Decode Cfg Bytes. - */ - decoded_hcfg.iobase = IOBASE(hard_cfg[0]); - decoded_hcfg.joystick = JOY(hard_cfg[0]); - decoded_hcfg.wssbase = WSSADDR(hard_cfg[0]); - decoded_hcfg.mpubase = MPUADDR(hard_cfg[0]); - decoded_hcfg.cdrom = CDROM(hard_cfg[1]); - decoded_hcfg.cdrombase = CDROMADDR(hard_cfg[1]); - -#if defined(AEDSP16_INFO) || defined(AEDSP16_DEBUG) - printk(" Original sound card configuration:\n"); - aedsp16_pinfo(); -#endif - -/* - * Now set up the real kernel configuration. - */ - decoded_hcfg.iobase = ae_config.base_io; - decoded_hcfg.wssbase = ae_config.mss_base; - decoded_hcfg.mpubase = ae_config.mpu_base; - -#if defined(CONFIG_SC6600_JOY) - decoded_hcfg.joystick = CONFIG_SC6600_JOY; /* Enable */ -#endif -#if defined(CONFIG_SC6600_CDROM) - decoded_hcfg.cdrom = CONFIG_SC6600_CDROM; /* 4:N-3:I-2:G-1:P-0:S */ -#endif -#if defined(CONFIG_SC6600_CDROMBASE) - decoded_hcfg.cdrombase = CONFIG_SC6600_CDROMBASE; /* 0 Disable */ -#endif - -#if defined(AEDSP16_DEBUG) - DBG((" New Values:\n")); - aedsp16_pinfo(); -#endif - - DBG(("success.\n")); -} - -static void __init aedsp16_hard_encode(void) { - - DBG((" aedsp16_hard_encode: 0x%x, 0x%x\n", hard_cfg[0], hard_cfg[1])); - - hard_cfg[0] = 0; - hard_cfg[1] = 0; - - hard_cfg[0] |= 0x20; - - BLDIOBASE (hard_cfg[0], decoded_hcfg.iobase); - BLDWSSADDR(hard_cfg[0], decoded_hcfg.wssbase); - BLDMPUADDR(hard_cfg[0], decoded_hcfg.mpubase); - BLDJOY(hard_cfg[0], decoded_hcfg.joystick); - BLDCDROM(hard_cfg[1], decoded_hcfg.cdrom); - BLDCDROMADDR(hard_cfg[1], decoded_hcfg.cdrombase); - -#if defined(AEDSP16_DEBUG) - aedsp16_pinfo(); -#endif - - DBG((" aedsp16_hard_encode: 0x%x, 0x%x\n", hard_cfg[0], hard_cfg[1])); - DBG(("success.\n")); - -} - -static int __init aedsp16_hard_write(int port) { - - DBG(("aedsp16_hard_write:\n")); - - if (aedsp16_write(port, COMMAND_6C)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_6C); - DBG(("failure.\n")); - return FALSE; - } - if (aedsp16_write(port, COMMAND_5C)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_5C); - DBG(("failure.\n")); - return FALSE; - } - if (aedsp16_write(port, hard_cfg[0])) { - printk("[AEDSP16] DATA 0x%x: failed!\n", hard_cfg[0]); - DBG(("failure.\n")); - return FALSE; - } - if (aedsp16_write(port, hard_cfg[1])) { - printk("[AEDSP16] DATA 0x%x: failed!\n", hard_cfg[1]); - DBG(("failure.\n")); - return FALSE; - } - if (aedsp16_write(port, COMMAND_C5)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_C5); - DBG(("failure.\n")); - return FALSE; - } - - DBG(("success.\n")); - - return TRUE; -} - -static int __init aedsp16_hard_read(int port) { - - DBG(("aedsp16_hard_read:\n")); - - if (aedsp16_write(port, READ_HARD_CFG)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", READ_HARD_CFG); - DBG(("failure.\n")); - return FALSE; - } - - if ((hard_cfg[0] = aedsp16_read(port)) == -1) { - printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n", - READ_HARD_CFG); - DBG(("failure.\n")); - return FALSE; - } - if ((hard_cfg[1] = aedsp16_read(port)) == -1) { - printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n", - READ_HARD_CFG); - DBG(("failure.\n")); - return FALSE; - } - if (aedsp16_read(port) == -1) { - printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n", - READ_HARD_CFG); - DBG(("failure.\n")); - return FALSE; - } - - DBG(("success.\n")); - - return TRUE; -} - -static int __init aedsp16_ext_cfg_write(int port) { - - int extcfg, val; - - if (aedsp16_write(port, COMMAND_66)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_66); - return FALSE; - } - - extcfg = 7; - if (decoded_hcfg.cdrom != 2) - extcfg = 0x0F; - if ((decoded_hcfg.cdrom == 4) || - (decoded_hcfg.cdrom == 3)) - extcfg &= ~2; - if (decoded_hcfg.cdrombase == 0) - extcfg &= ~2; - if (decoded_hcfg.mpubase == 0) - extcfg &= ~1; - - if (aedsp16_write(port, extcfg)) { - printk("[AEDSP16] Write extcfg: failed!\n"); - return FALSE; - } - if (aedsp16_write(port, 0)) { - printk("[AEDSP16] Write extcfg: failed!\n"); - return FALSE; - } - if (decoded_hcfg.cdrom == 3) { - if (aedsp16_write(port, COMMAND_52)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_52); - return FALSE; - } - if ((val = aedsp16_read(port)) == -1) { - printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n" - , COMMAND_52); - return FALSE; - } - val &= 0x7F; - if (aedsp16_write(port, COMMAND_60)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_60); - return FALSE; - } - if (aedsp16_write(port, val)) { - printk("[AEDSP16] Write val: failed!\n"); - return FALSE; - } - } - - return TRUE; -} - -#endif /* CONFIG_SC6600 */ - -static int __init aedsp16_cfg_write(int port) { - if (aedsp16_write(port, WRITE_MDIRQ_CFG)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG); - return FALSE; - } - if (aedsp16_write(port, soft_cfg)) { - printk("[AEDSP16] Initialization of (M)IRQ and DMA: failed!\n"); - return FALSE; - } - return TRUE; -} - -static int __init aedsp16_init_mss(int port) -{ - DBG(("aedsp16_init_mss:\n")); - - mdelay(10); - - if (aedsp16_write(port, DSP_INIT_MSS)) { - printk("[AEDSP16] aedsp16_init_mss [0x%x]: failed!\n", - DSP_INIT_MSS); - DBG(("failure.\n")); - return FALSE; - } - - mdelay(10); - - if (aedsp16_cfg_write(port) == FALSE) - return FALSE; - - outb(soft_cfg_mss, ae_config.mss_base); - - DBG(("success.\n")); - - return TRUE; -} - -static int __init aedsp16_setup_board(int port) { - int loop = RETRY; - -#if defined(CONFIG_SC6600) - int val = 0; - - if (aedsp16_hard_read(port) == FALSE) { - printk("[AEDSP16] aedsp16_hard_read: failed!\n"); - return FALSE; - } - - if (aedsp16_write(port, COMMAND_52)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_52); - return FALSE; - } - - if ((val = aedsp16_read(port)) == -1) { - printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n", - COMMAND_52); - return FALSE; - } -#endif - - do { - if (aedsp16_write(port, COMMAND_88)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_88); - return FALSE; - } - mdelay(10); - } while ((aedsp16_wait_data(port) == FALSE) && loop--); - - if (aedsp16_read(port) == -1) { - printk("[AEDSP16] aedsp16_read after CMD 0x%x: failed\n", - COMMAND_88); - return FALSE; - } - -#if !defined(CONFIG_SC6600) - if (aedsp16_write(port, COMMAND_5C)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_5C); - return FALSE; - } -#endif - - if (aedsp16_cfg_write(port) == FALSE) - return FALSE; - -#if defined(CONFIG_SC6600) - if (aedsp16_write(port, COMMAND_60)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_60); - return FALSE; - } - if (aedsp16_write(port, val)) { - printk("[AEDSP16] DATA 0x%x: failed!\n", val); - return FALSE; - } - if (aedsp16_write(port, COMMAND_6E)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_6E); - return FALSE; - } - if (aedsp16_write(port, ver[0])) { - printk("[AEDSP16] DATA 0x%x: failed!\n", ver[0]); - return FALSE; - } - if (aedsp16_write(port, ver[1])) { - printk("[AEDSP16] DATA 0x%x: failed!\n", ver[1]); - return FALSE; - } - - if (aedsp16_hard_write(port) == FALSE) { - printk("[AEDSP16] aedsp16_hard_write: failed!\n"); - return FALSE; - } - - if (aedsp16_write(port, COMMAND_5C)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", COMMAND_5C); - return FALSE; - } - -#if defined(THIS_IS_A_THING_I_HAVE_NOT_TESTED_YET) - if (aedsp16_cfg_write(port) == FALSE) - return FALSE; -#endif - -#endif - - return TRUE; -} - -static int __init aedsp16_stdcfg(int port) { - if (aedsp16_write(port, WRITE_MDIRQ_CFG)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", WRITE_MDIRQ_CFG); - return FALSE; - } - /* - * 0x0A == (IRQ 7, DMA 1, MIRQ 0) - */ - if (aedsp16_write(port, 0x0A)) { - printk("[AEDSP16] aedsp16_stdcfg: failed!\n"); - return FALSE; - } - return TRUE; -} - -static int __init aedsp16_dsp_version(int port) -{ - int len = 0; - int ret; - - DBG(("Get DSP Version:\n")); - - if (aedsp16_write(ae_config.base_io, GET_DSP_VERSION)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", GET_DSP_VERSION); - DBG(("failed.\n")); - return FALSE; - } - - do { - if ((ret = aedsp16_read(port)) == -1) { - DBG(("failed.\n")); - return FALSE; - } - /* - * We already know how many int are stored (2), so we know when the - * string is finished. - */ - ver[len++] = ret; - } while (len < CARDVERDIGITS); - sprintf(DSPVersion, "%d.%d", ver[0], ver[1]); - - DBG(("success.\n")); - - return TRUE; -} - -static int __init aedsp16_dsp_copyright(int port) -{ - int len = 0; - int ret; - - DBG(("Get DSP Copyright:\n")); - - if (aedsp16_write(ae_config.base_io, GET_DSP_COPYRIGHT)) { - printk("[AEDSP16] CMD 0x%x: failed!\n", GET_DSP_COPYRIGHT); - DBG(("failed.\n")); - return FALSE; - } - - do { - if ((ret = aedsp16_read(port)) == -1) { - /* - * If no more data available, return to the caller, no error if len>0. - * We have no other way to know when the string is finished. - */ - if (len) - break; - else { - DBG(("failed.\n")); - return FALSE; - } - } - - DSPCopyright[len++] = ret; - - } while (len < CARDNAMELEN); - - DBG(("success.\n")); - - return TRUE; -} - -static void __init aedsp16_init_tables(void) -{ - int i = 0; - - memset(DSPCopyright, 0, CARDNAMELEN + 1); - memset(DSPVersion, 0, CARDVERLEN + 1); - - for (i = 0; orIRQ[i].or; i++) - if (orIRQ[i].val == ae_config.irq) { - soft_cfg |= orIRQ[i].or; - soft_cfg_mss |= orIRQ[i].or; - } - - for (i = 0; orMIRQ[i].or; i++) - if (orMIRQ[i].or == ae_config.mpu_irq) - soft_cfg |= orMIRQ[i].or; - - for (i = 0; orDMA[i].or; i++) - if (orDMA[i].val == ae_config.dma) { - soft_cfg |= orDMA[i].or; - soft_cfg_mss |= orDMA[i].or; - } -} - -static int __init aedsp16_init_board(void) -{ - aedsp16_init_tables(); - - if (aedsp16_dsp_reset(ae_config.base_io) == FALSE) { - printk("[AEDSP16] aedsp16_dsp_reset: failed!\n"); - return FALSE; - } - if (aedsp16_dsp_copyright(ae_config.base_io) == FALSE) { - printk("[AEDSP16] aedsp16_dsp_copyright: failed!\n"); - return FALSE; - } - - /* - * My AEDSP16 card return SC-6000 in DSPCopyright, so - * if we have something different, we have to be warned. - */ - if (strcmp("SC-6000", DSPCopyright)) - printk("[AEDSP16] Warning: non SC-6000 audio card!\n"); - - if (aedsp16_dsp_version(ae_config.base_io) == FALSE) { - printk("[AEDSP16] aedsp16_dsp_version: failed!\n"); - return FALSE; - } - - if (aedsp16_stdcfg(ae_config.base_io) == FALSE) { - printk("[AEDSP16] aedsp16_stdcfg: failed!\n"); - return FALSE; - } - -#if defined(CONFIG_SC6600) - if (aedsp16_hard_read(ae_config.base_io) == FALSE) { - printk("[AEDSP16] aedsp16_hard_read: failed!\n"); - return FALSE; - } - - aedsp16_hard_decode(); - - aedsp16_hard_encode(); - - if (aedsp16_hard_write(ae_config.base_io) == FALSE) { - printk("[AEDSP16] aedsp16_hard_write: failed!\n"); - return FALSE; - } - - if (aedsp16_ext_cfg_write(ae_config.base_io) == FALSE) { - printk("[AEDSP16] aedsp16_ext_cfg_write: failed!\n"); - return FALSE; - } -#endif /* CONFIG_SC6600 */ - - if (aedsp16_setup_board(ae_config.base_io) == FALSE) { - printk("[AEDSP16] aedsp16_setup_board: failed!\n"); - return FALSE; - } - - if (ae_config.mss_base != -1) { - if (ae_config.init & INIT_MSS) { - if (aedsp16_init_mss(ae_config.base_io) == FALSE) { - printk("[AEDSP16] Can not initialize" - "Microsoft Sound System mode.\n"); - return FALSE; - } - } - } - -#if !defined(MODULE) || defined(AEDSP16_INFO) || defined(AEDSP16_DEBUG) - - printk("Audio Excel DSP 16 init v%s (%s %s) [", - VERSION, DSPCopyright, - DSPVersion); - - if (ae_config.mpu_base != -1) { - if (ae_config.init & INIT_MPU401) { - printk("MPU401"); - if ((ae_config.init & INIT_MSS) || - (ae_config.init & INIT_SBPRO)) - printk(" "); - } - } - - if (ae_config.mss_base == -1) { - if (ae_config.init & INIT_SBPRO) { - printk("SBPro"); - if (ae_config.init & INIT_MSS) - printk(" "); - } - } - - if (ae_config.mss_base != -1) - if (ae_config.init & INIT_MSS) - printk("MSS"); - - printk("]\n"); -#endif /* MODULE || AEDSP16_INFO || AEDSP16_DEBUG */ - - mdelay(10); - - return TRUE; -} - -static int __init init_aedsp16_sb(void) -{ - DBG(("init_aedsp16_sb: ")); - -/* - * If the card is already init'ed MSS, we can not init it to SBPRO too - * because the board can not emulate simultaneously MSS and SBPRO. - */ - if (ae_config.init & INIT_MSS) - return FALSE; - if (ae_config.init & INIT_SBPRO) - return FALSE; - - ae_config.init |= INIT_SBPRO; - - DBG(("done.\n")); - - return TRUE; -} - -static void uninit_aedsp16_sb(void) -{ - DBG(("uninit_aedsp16_sb: ")); - - ae_config.init &= ~INIT_SBPRO; - - DBG(("done.\n")); -} - -static int __init init_aedsp16_mss(void) -{ - DBG(("init_aedsp16_mss: ")); - -/* - * If the card is already init'ed SBPRO, we can not init it to MSS too - * because the board can not emulate simultaneously MSS and SBPRO. - */ - if (ae_config.init & INIT_SBPRO) - return FALSE; - if (ae_config.init & INIT_MSS) - return FALSE; -/* - * We must allocate the CONFIG_AEDSP16_BASE region too because these are the - * I/O ports to access card's control registers. - */ - if (!(ae_config.init & INIT_MPU401)) { - if (!request_region(ae_config.base_io, IOBASE_REGION_SIZE, - "aedsp16 (base)")) { - printk( - "AEDSP16 BASE I/O port region is already in use.\n"); - return FALSE; - } - } - - ae_config.init |= INIT_MSS; - - DBG(("done.\n")); - - return TRUE; -} - -static void uninit_aedsp16_mss(void) -{ - DBG(("uninit_aedsp16_mss: ")); - - if ((!(ae_config.init & INIT_MPU401)) && - (ae_config.init & INIT_MSS)) { - release_region(ae_config.base_io, IOBASE_REGION_SIZE); - DBG(("AEDSP16 base region released.\n")); - } - - ae_config.init &= ~INIT_MSS; - DBG(("done.\n")); -} - -static int __init init_aedsp16_mpu(void) -{ - DBG(("init_aedsp16_mpu: ")); - - if (ae_config.init & INIT_MPU401) - return FALSE; - -/* - * We must request the CONFIG_AEDSP16_BASE region too because these are the I/O - * ports to access card's control registers. - */ - if (!(ae_config.init & (INIT_MSS | INIT_SBPRO))) { - if (!request_region(ae_config.base_io, IOBASE_REGION_SIZE, - "aedsp16 (base)")) { - printk( - "AEDSP16 BASE I/O port region is already in use.\n"); - return FALSE; - } - } - - ae_config.init |= INIT_MPU401; - - DBG(("done.\n")); - - return TRUE; -} - -static void uninit_aedsp16_mpu(void) -{ - DBG(("uninit_aedsp16_mpu: ")); - - if ((!(ae_config.init & (INIT_MSS | INIT_SBPRO))) && - (ae_config.init & INIT_MPU401)) { - release_region(ae_config.base_io, IOBASE_REGION_SIZE); - DBG(("AEDSP16 base region released.\n")); - } - - ae_config.init &= ~INIT_MPU401; - - DBG(("done.\n")); -} - -static int __init init_aedsp16(void) -{ - int initialized = FALSE; - - DBG(("Initializing BASE[0x%x] IRQ[%d] DMA[%d] MIRQ[%d]\n", - ae_config.base_io,ae_config.irq,ae_config.dma,ae_config.mpu_irq)); - - if (ae_config.mss_base == -1) { - if (init_aedsp16_sb() == FALSE) { - uninit_aedsp16_sb(); - } else { - initialized = TRUE; - } - } - - if (ae_config.mpu_base != -1) { - if (init_aedsp16_mpu() == FALSE) { - uninit_aedsp16_mpu(); - } else { - initialized = TRUE; - } - } - -/* - * In the sequence of init routines, the MSS init MUST be the last! - * This because of the special register programming the MSS mode needs. - * A board reset would disable the MSS mode restoring the default SBPRO - * mode. - */ - if (ae_config.mss_base != -1) { - if (init_aedsp16_mss() == FALSE) { - uninit_aedsp16_mss(); - } else { - initialized = TRUE; - } - } - - if (initialized) - initialized = aedsp16_init_board(); - return initialized; -} - -static void __exit uninit_aedsp16(void) -{ - if (ae_config.mss_base != -1) - uninit_aedsp16_mss(); - else - uninit_aedsp16_sb(); - if (ae_config.mpu_base != -1) - uninit_aedsp16_mpu(); -} - -static int __initdata io = -1; -static int __initdata irq = -1; -static int __initdata dma = -1; -static int __initdata mpu_irq = -1; -static int __initdata mss_base = -1; -static int __initdata mpu_base = -1; - -module_param_hw(io, int, ioport, 0); -MODULE_PARM_DESC(io, "I/O base address (0x220 0x240)"); -module_param_hw(irq, int, irq, 0); -MODULE_PARM_DESC(irq, "IRQ line (5 7 9 10 11)"); -module_param_hw(dma, int, dma, 0); -MODULE_PARM_DESC(dma, "dma line (0 1 3)"); -module_param_hw(mpu_irq, int, irq, 0); -MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ line (5 7 9 10 0)"); -module_param_hw(mss_base, int, ioport, 0); -MODULE_PARM_DESC(mss_base, "MSS emulation I/O base address (0x530 0xE80)"); -module_param_hw(mpu_base, int, ioport, 0); -MODULE_PARM_DESC(mpu_base,"MPU-401 I/O base address (0x300 0x310 0x320 0x330)"); -MODULE_AUTHOR("Riccardo Facchetti "); -MODULE_DESCRIPTION("Audio Excel DSP 16 Driver Version " VERSION); -MODULE_LICENSE("GPL"); - -static int __init do_init_aedsp16(void) { - printk("Audio Excel DSP 16 init driver Copyright (C) Riccardo Facchetti 1995-98\n"); - if (io == -1 || dma == -1 || irq == -1) { - printk(KERN_INFO "aedsp16: I/O, IRQ and DMA are mandatory\n"); - return -EINVAL; - } - - ae_config.base_io = io; - ae_config.irq = irq; - ae_config.dma = dma; - - ae_config.mss_base = mss_base; - ae_config.mpu_base = mpu_base; - ae_config.mpu_irq = mpu_irq; - - if (init_aedsp16() == FALSE) { - printk(KERN_ERR "aedsp16: initialization failed\n"); - /* - * XXX - * What error should we return here ? - */ - return -EINVAL; - } - return 0; -} - -static void __exit cleanup_aedsp16(void) { - uninit_aedsp16(); -} - -module_init(do_init_aedsp16); -module_exit(cleanup_aedsp16); - -#ifndef MODULE -static int __init setup_aedsp16(char *str) -{ - /* io, irq, dma, mss_io, mpu_io, mpu_irq */ - int ints[7]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - io = ints[1]; - irq = ints[2]; - dma = ints[3]; - mss_base = ints[4]; - mpu_base = ints[5]; - mpu_irq = ints[6]; - return 1; -} - -__setup("aedsp16=", setup_aedsp16); -#endif diff --git a/sound/oss/audio.c b/sound/oss/audio.c deleted file mode 100644 index 09c932f899b8..000000000000 --- a/sound/oss/audio.c +++ /dev/null @@ -1,985 +0,0 @@ -/* - * sound/oss/audio.c - * - * Device file manager for /dev/audio - */ - -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ -/* - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * Thomas Sailer : moved several static variables into struct audio_operations - * (which is grossly misnamed btw.) because they have the same - * lifetime as the rest in there and dynamic allocation saves - * 12k or so - * Thomas Sailer : use more logical O_NONBLOCK semantics - * Daniel Rodriksson: reworked the use of the device specific copy_user - * still generic - * Horst von Brand: Add missing #include - * Chris Rankin : Update the module-usage counter for the coprocessor, - * and decrement the counters again if we cannot open - * the audio device. - */ - -#include -#include -#include - -#include "sound_config.h" -#include "ulaw.h" -#include "coproc.h" - -#define NEUTRAL8 0x80 -#define NEUTRAL16 0x00 - - -static int dma_ioctl(int dev, unsigned int cmd, void __user *arg); - -static int set_format(int dev, int fmt) -{ - if (fmt != AFMT_QUERY) - { - audio_devs[dev]->local_conversion = 0; - - if (!(audio_devs[dev]->format_mask & fmt)) /* Not supported */ - { - if (fmt == AFMT_MU_LAW) - { - fmt = AFMT_U8; - audio_devs[dev]->local_conversion = CNV_MU_LAW; - } - else - fmt = AFMT_U8; /* This is always supported */ - } - audio_devs[dev]->audio_format = audio_devs[dev]->d->set_bits(dev, fmt); - audio_devs[dev]->local_format = fmt; - } - else - return audio_devs[dev]->local_format; - - if (audio_devs[dev]->local_conversion) - return audio_devs[dev]->local_conversion; - else - return audio_devs[dev]->local_format; -} - -int audio_open(int dev, struct file *file) -{ - int ret; - int bits; - int dev_type = dev & 0x0f; - int mode = translate_mode(file); - const struct audio_driver *driver; - const struct coproc_operations *coprocessor; - - dev = dev >> 4; - - if (dev_type == SND_DEV_DSP16) - bits = 16; - else - bits = 8; - - if (dev < 0 || dev >= num_audiodevs) - return -ENXIO; - - driver = audio_devs[dev]->d; - - if (!try_module_get(driver->owner)) - return -ENODEV; - - if ((ret = DMAbuf_open(dev, mode)) < 0) - goto error_1; - - if ( (coprocessor = audio_devs[dev]->coproc) != NULL ) { - if (!try_module_get(coprocessor->owner)) - goto error_2; - - if ((ret = coprocessor->open(coprocessor->devc, COPR_PCM)) < 0) { - printk(KERN_WARNING "Sound: Can't access coprocessor device\n"); - goto error_3; - } - } - - audio_devs[dev]->local_conversion = 0; - - if (dev_type == SND_DEV_AUDIO) - set_format(dev, AFMT_MU_LAW); - else - set_format(dev, bits); - - audio_devs[dev]->audio_mode = AM_NONE; - - return 0; - - /* - * Clean-up stack: this is what needs (un)doing if - * we can't open the audio device ... - */ - error_3: - module_put(coprocessor->owner); - - error_2: - DMAbuf_release(dev, mode); - - error_1: - module_put(driver->owner); - - return ret; -} - -static void sync_output(int dev) -{ - int p, i; - int l; - struct dma_buffparms *dmap = audio_devs[dev]->dmap_out; - - if (dmap->fragment_size <= 0) - return; - dmap->flags |= DMA_POST; - - /* Align the write pointer with fragment boundaries */ - - if ((l = dmap->user_counter % dmap->fragment_size) > 0) - { - int len; - unsigned long offs = dmap->user_counter % dmap->bytes_in_use; - - len = dmap->fragment_size - l; - memset(dmap->raw_buf + offs, dmap->neutral_byte, len); - DMAbuf_move_wrpointer(dev, len); - } - - /* - * Clean all unused buffer fragments. - */ - - p = dmap->qtail; - dmap->flags |= DMA_POST; - - for (i = dmap->qlen + 1; i < dmap->nbufs; i++) - { - p = (p + 1) % dmap->nbufs; - if (((dmap->raw_buf + p * dmap->fragment_size) + dmap->fragment_size) > - (dmap->raw_buf + dmap->buffsize)) - printk(KERN_ERR "audio: Buffer error 2\n"); - - memset(dmap->raw_buf + p * dmap->fragment_size, - dmap->neutral_byte, - dmap->fragment_size); - } - - dmap->flags |= DMA_DIRTY; -} - -void audio_release(int dev, struct file *file) -{ - const struct coproc_operations *coprocessor; - int mode = translate_mode(file); - - dev = dev >> 4; - - /* - * We do this in DMAbuf_release(). Why are we doing it - * here? Why don't we test the file mode before setting - * both flags? DMAbuf_release() does. - * ...pester...pester...pester... - */ - audio_devs[dev]->dmap_out->closing = 1; - audio_devs[dev]->dmap_in->closing = 1; - - /* - * We need to make sure we allocated the dmap_out buffer - * before we go mucking around with it in sync_output(). - */ - if (mode & OPEN_WRITE) - sync_output(dev); - - if ( (coprocessor = audio_devs[dev]->coproc) != NULL ) { - coprocessor->close(coprocessor->devc, COPR_PCM); - module_put(coprocessor->owner); - } - DMAbuf_release(dev, mode); - - module_put(audio_devs[dev]->d->owner); -} - -static void translate_bytes(const unsigned char *table, unsigned char *buff, int n) -{ - unsigned long i; - - if (n <= 0) - return; - - for (i = 0; i < n; ++i) - buff[i] = table[buff[i]]; -} - -int audio_write(int dev, struct file *file, const char __user *buf, int count) -{ - int c, p, l, buf_size, used, returned; - int err; - char *dma_buf; - - dev = dev >> 4; - - p = 0; - c = count; - - if(count < 0) - return -EINVAL; - - if (!(audio_devs[dev]->open_mode & OPEN_WRITE)) - return -EPERM; - - if (audio_devs[dev]->flags & DMA_DUPLEX) - audio_devs[dev]->audio_mode |= AM_WRITE; - else - audio_devs[dev]->audio_mode = AM_WRITE; - - if (!count) /* Flush output */ - { - sync_output(dev); - return 0; - } - - while (c) - { - if ((err = DMAbuf_getwrbuffer(dev, &dma_buf, &buf_size, !!(file->f_flags & O_NONBLOCK))) < 0) - { - /* Handle nonblocking mode */ - if ((file->f_flags & O_NONBLOCK) && err == -EAGAIN) - return p? p : -EAGAIN; /* No more space. Return # of accepted bytes */ - return err; - } - l = c; - - if (l > buf_size) - l = buf_size; - - returned = l; - used = l; - if (!audio_devs[dev]->d->copy_user) - { - if ((dma_buf + l) > - (audio_devs[dev]->dmap_out->raw_buf + audio_devs[dev]->dmap_out->buffsize)) - { - printk(KERN_ERR "audio: Buffer error 3 (%lx,%d), (%lx, %d)\n", (long) dma_buf, l, (long) audio_devs[dev]->dmap_out->raw_buf, (int) audio_devs[dev]->dmap_out->buffsize); - return -EDOM; - } - if (dma_buf < audio_devs[dev]->dmap_out->raw_buf) - { - printk(KERN_ERR "audio: Buffer error 13 (%lx<%lx)\n", (long) dma_buf, (long) audio_devs[dev]->dmap_out->raw_buf); - return -EDOM; - } - if(copy_from_user(dma_buf, &(buf)[p], l)) - return -EFAULT; - } - else audio_devs[dev]->d->copy_user (dev, - dma_buf, 0, - buf, p, - c, buf_size, - &used, &returned, - l); - l = returned; - - if (audio_devs[dev]->local_conversion & CNV_MU_LAW) - { - translate_bytes(ulaw_dsp, (unsigned char *) dma_buf, l); - } - c -= used; - p += used; - DMAbuf_move_wrpointer(dev, l); - - } - - return count; -} - -int audio_read(int dev, struct file *file, char __user *buf, int count) -{ - int c, p, l; - char *dmabuf; - int buf_no; - - dev = dev >> 4; - p = 0; - c = count; - - if (!(audio_devs[dev]->open_mode & OPEN_READ)) - return -EPERM; - - if ((audio_devs[dev]->audio_mode & AM_WRITE) && !(audio_devs[dev]->flags & DMA_DUPLEX)) - sync_output(dev); - - if (audio_devs[dev]->flags & DMA_DUPLEX) - audio_devs[dev]->audio_mode |= AM_READ; - else - audio_devs[dev]->audio_mode = AM_READ; - - while(c) - { - if ((buf_no = DMAbuf_getrdbuffer(dev, &dmabuf, &l, !!(file->f_flags & O_NONBLOCK))) < 0) - { - /* - * Nonblocking mode handling. Return current # of bytes - */ - - if (p > 0) /* Avoid throwing away data */ - return p; /* Return it instead */ - - if ((file->f_flags & O_NONBLOCK) && buf_no == -EAGAIN) - return -EAGAIN; - - return buf_no; - } - if (l > c) - l = c; - - /* - * Insert any local processing here. - */ - - if (audio_devs[dev]->local_conversion & CNV_MU_LAW) - { - translate_bytes(dsp_ulaw, (unsigned char *) dmabuf, l); - } - - { - char *fixit = dmabuf; - - if(copy_to_user(&(buf)[p], fixit, l)) - return -EFAULT; - } - - DMAbuf_rmchars(dev, buf_no, l); - - p += l; - c -= l; - } - - return count - c; -} - -int audio_ioctl(int dev, struct file *file, unsigned int cmd, void __user *arg) -{ - int val, count; - unsigned long flags; - struct dma_buffparms *dmap; - int __user *p = arg; - - dev = dev >> 4; - - if (_IOC_TYPE(cmd) == 'C') { - if (audio_devs[dev]->coproc) /* Coprocessor ioctl */ - return audio_devs[dev]->coproc->ioctl(audio_devs[dev]->coproc->devc, cmd, arg, 0); - /* else - printk(KERN_DEBUG"/dev/dsp%d: No coprocessor for this device\n", dev); */ - return -ENXIO; - } - else switch (cmd) - { - case SNDCTL_DSP_SYNC: - if (!(audio_devs[dev]->open_mode & OPEN_WRITE)) - return 0; - if (audio_devs[dev]->dmap_out->fragment_size == 0) - return 0; - sync_output(dev); - DMAbuf_sync(dev); - DMAbuf_reset(dev); - return 0; - - case SNDCTL_DSP_POST: - if (!(audio_devs[dev]->open_mode & OPEN_WRITE)) - return 0; - if (audio_devs[dev]->dmap_out->fragment_size == 0) - return 0; - audio_devs[dev]->dmap_out->flags |= DMA_POST | DMA_DIRTY; - sync_output(dev); - dma_ioctl(dev, SNDCTL_DSP_POST, NULL); - return 0; - - case SNDCTL_DSP_RESET: - audio_devs[dev]->audio_mode = AM_NONE; - DMAbuf_reset(dev); - return 0; - - case SNDCTL_DSP_GETFMTS: - val = audio_devs[dev]->format_mask | AFMT_MU_LAW; - break; - - case SNDCTL_DSP_SETFMT: - if (get_user(val, p)) - return -EFAULT; - val = set_format(dev, val); - break; - - case SNDCTL_DSP_GETISPACE: - if (!(audio_devs[dev]->open_mode & OPEN_READ)) - return 0; - if ((audio_devs[dev]->audio_mode & AM_WRITE) && !(audio_devs[dev]->flags & DMA_DUPLEX)) - return -EBUSY; - return dma_ioctl(dev, cmd, arg); - - case SNDCTL_DSP_GETOSPACE: - if (!(audio_devs[dev]->open_mode & OPEN_WRITE)) - return -EPERM; - if ((audio_devs[dev]->audio_mode & AM_READ) && !(audio_devs[dev]->flags & DMA_DUPLEX)) - return -EBUSY; - return dma_ioctl(dev, cmd, arg); - - case SNDCTL_DSP_NONBLOCK: - spin_lock(&file->f_lock); - file->f_flags |= O_NONBLOCK; - spin_unlock(&file->f_lock); - return 0; - - case SNDCTL_DSP_GETCAPS: - val = 1 | DSP_CAP_MMAP; /* Revision level of this ioctl() */ - if (audio_devs[dev]->flags & DMA_DUPLEX && - audio_devs[dev]->open_mode == OPEN_READWRITE) - val |= DSP_CAP_DUPLEX; - if (audio_devs[dev]->coproc) - val |= DSP_CAP_COPROC; - if (audio_devs[dev]->d->local_qlen) /* Device has hidden buffers */ - val |= DSP_CAP_BATCH; - if (audio_devs[dev]->d->trigger) /* Supports SETTRIGGER */ - val |= DSP_CAP_TRIGGER; - break; - - case SOUND_PCM_WRITE_RATE: - if (get_user(val, p)) - return -EFAULT; - val = audio_devs[dev]->d->set_speed(dev, val); - break; - - case SOUND_PCM_READ_RATE: - val = audio_devs[dev]->d->set_speed(dev, 0); - break; - - case SNDCTL_DSP_STEREO: - if (get_user(val, p)) - return -EFAULT; - if (val > 1 || val < 0) - return -EINVAL; - val = audio_devs[dev]->d->set_channels(dev, val + 1) - 1; - break; - - case SOUND_PCM_WRITE_CHANNELS: - if (get_user(val, p)) - return -EFAULT; - val = audio_devs[dev]->d->set_channels(dev, val); - break; - - case SOUND_PCM_READ_CHANNELS: - val = audio_devs[dev]->d->set_channels(dev, 0); - break; - - case SOUND_PCM_READ_BITS: - val = audio_devs[dev]->d->set_bits(dev, 0); - break; - - case SNDCTL_DSP_SETDUPLEX: - if (audio_devs[dev]->open_mode != OPEN_READWRITE) - return -EPERM; - return (audio_devs[dev]->flags & DMA_DUPLEX) ? 0 : -EIO; - - case SNDCTL_DSP_PROFILE: - if (get_user(val, p)) - return -EFAULT; - if (audio_devs[dev]->open_mode & OPEN_WRITE) - audio_devs[dev]->dmap_out->applic_profile = val; - if (audio_devs[dev]->open_mode & OPEN_READ) - audio_devs[dev]->dmap_in->applic_profile = val; - return 0; - - case SNDCTL_DSP_GETODELAY: - dmap = audio_devs[dev]->dmap_out; - if (!(audio_devs[dev]->open_mode & OPEN_WRITE)) - return -EINVAL; - if (!(dmap->flags & DMA_ALLOC_DONE)) - { - val=0; - break; - } - - spin_lock_irqsave(&dmap->lock,flags); - /* Compute number of bytes that have been played */ - count = DMAbuf_get_buffer_pointer (dev, dmap, DMODE_OUTPUT); - if (count < dmap->fragment_size && dmap->qhead != 0) - count += dmap->bytes_in_use; /* Pointer wrap not handled yet */ - count += dmap->byte_counter; - - /* Subtract current count from the number of bytes written by app */ - count = dmap->user_counter - count; - if (count < 0) - count = 0; - spin_unlock_irqrestore(&dmap->lock,flags); - val = count; - break; - - default: - return dma_ioctl(dev, cmd, arg); - } - return put_user(val, p); -} - -void audio_init_devices(void) -{ - /* - * NOTE! This routine could be called several times during boot. - */ -} - -void reorganize_buffers(int dev, struct dma_buffparms *dmap, int recording) -{ - /* - * This routine breaks the physical device buffers to logical ones. - */ - - struct audio_operations *dsp_dev = audio_devs[dev]; - - unsigned i, n; - unsigned sr, nc, sz, bsz; - - sr = dsp_dev->d->set_speed(dev, 0); - nc = dsp_dev->d->set_channels(dev, 0); - sz = dsp_dev->d->set_bits(dev, 0); - - if (sz == 8) - dmap->neutral_byte = NEUTRAL8; - else - dmap->neutral_byte = NEUTRAL16; - - if (sr < 1 || nc < 1 || sz < 1) - { -/* printk(KERN_DEBUG "Warning: Invalid PCM parameters[%d] sr=%d, nc=%d, sz=%d\n", dev, sr, nc, sz);*/ - sr = DSP_DEFAULT_SPEED; - nc = 1; - sz = 8; - } - - sz = sr * nc * sz; - - sz /= 8; /* #bits -> #bytes */ - dmap->data_rate = sz; - - if (!dmap->needs_reorg) - return; - dmap->needs_reorg = 0; - - if (dmap->fragment_size == 0) - { - /* Compute the fragment size using the default algorithm */ - - /* - * Compute a buffer size for time not exceeding 1 second. - * Usually this algorithm gives a buffer size for 0.5 to 1.0 seconds - * of sound (using the current speed, sample size and #channels). - */ - - bsz = dmap->buffsize; - while (bsz > sz) - bsz /= 2; - - if (bsz == dmap->buffsize) - bsz /= 2; /* Needs at least 2 buffers */ - - /* - * Split the computed fragment to smaller parts. After 3.5a9 - * the default subdivision is 4 which should give better - * results when recording. - */ - - if (dmap->subdivision == 0) /* Not already set */ - { - dmap->subdivision = 4; /* Init to the default value */ - - if ((bsz / dmap->subdivision) > 4096) - dmap->subdivision *= 2; - if ((bsz / dmap->subdivision) < 4096) - dmap->subdivision = 1; - } - bsz /= dmap->subdivision; - - if (bsz < 16) - bsz = 16; /* Just a sanity check */ - - dmap->fragment_size = bsz; - } - else - { - /* - * The process has specified the buffer size with SNDCTL_DSP_SETFRAGMENT or - * the buffer size computation has already been done. - */ - if (dmap->fragment_size > (dmap->buffsize / 2)) - dmap->fragment_size = (dmap->buffsize / 2); - bsz = dmap->fragment_size; - } - - if (audio_devs[dev]->min_fragment) - if (bsz < (1 << audio_devs[dev]->min_fragment)) - bsz = 1 << audio_devs[dev]->min_fragment; - if (audio_devs[dev]->max_fragment) - if (bsz > (1 << audio_devs[dev]->max_fragment)) - bsz = 1 << audio_devs[dev]->max_fragment; - bsz &= ~0x07; /* Force size which is multiple of 8 bytes */ -#ifdef OS_DMA_ALIGN_CHECK - OS_DMA_ALIGN_CHECK(bsz); -#endif - - n = dmap->buffsize / bsz; - if (n > MAX_SUB_BUFFERS) - n = MAX_SUB_BUFFERS; - if (n > dmap->max_fragments) - n = dmap->max_fragments; - - if (n < 2) - { - n = 2; - bsz /= 2; - } - dmap->nbufs = n; - dmap->bytes_in_use = n * bsz; - dmap->fragment_size = bsz; - dmap->max_byte_counter = (dmap->data_rate * 60 * 60) + - dmap->bytes_in_use; /* Approximately one hour */ - - if (dmap->raw_buf) - { - memset(dmap->raw_buf, dmap->neutral_byte, dmap->bytes_in_use); - } - - for (i = 0; i < dmap->nbufs; i++) - { - dmap->counts[i] = 0; - } - - dmap->flags |= DMA_ALLOC_DONE | DMA_EMPTY; -} - -static int dma_subdivide(int dev, struct dma_buffparms *dmap, int fact) -{ - if (fact == 0) - { - fact = dmap->subdivision; - if (fact == 0) - fact = 1; - return fact; - } - if (dmap->subdivision != 0 || dmap->fragment_size) /* Too late to change */ - return -EINVAL; - - if (fact > MAX_REALTIME_FACTOR) - return -EINVAL; - - if (fact != 1 && fact != 2 && fact != 4 && fact != 8 && fact != 16) - return -EINVAL; - - dmap->subdivision = fact; - return fact; -} - -static int dma_set_fragment(int dev, struct dma_buffparms *dmap, int fact) -{ - int bytes, count; - - if (fact == 0) - return -EIO; - - if (dmap->subdivision != 0 || - dmap->fragment_size) /* Too late to change */ - return -EINVAL; - - bytes = fact & 0xffff; - count = (fact >> 16) & 0x7fff; - - if (count == 0) - count = MAX_SUB_BUFFERS; - else if (count < MAX_SUB_BUFFERS) - count++; - - if (bytes < 4 || bytes > 17) /* <16 || > 512k */ - return -EINVAL; - - if (count < 2) - return -EINVAL; - - if (audio_devs[dev]->min_fragment > 0) - if (bytes < audio_devs[dev]->min_fragment) - bytes = audio_devs[dev]->min_fragment; - - if (audio_devs[dev]->max_fragment > 0) - if (bytes > audio_devs[dev]->max_fragment) - bytes = audio_devs[dev]->max_fragment; - -#ifdef OS_DMA_MINBITS - if (bytes < OS_DMA_MINBITS) - bytes = OS_DMA_MINBITS; -#endif - - dmap->fragment_size = (1 << bytes); - dmap->max_fragments = count; - - if (dmap->fragment_size > dmap->buffsize) - dmap->fragment_size = dmap->buffsize; - - if (dmap->fragment_size == dmap->buffsize && - audio_devs[dev]->flags & DMA_AUTOMODE) - dmap->fragment_size /= 2; /* Needs at least 2 buffers */ - - dmap->subdivision = 1; /* Disable SNDCTL_DSP_SUBDIVIDE */ - return bytes | ((count - 1) << 16); -} - -static int dma_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - struct dma_buffparms *dmap_out = audio_devs[dev]->dmap_out; - struct dma_buffparms *dmap_in = audio_devs[dev]->dmap_in; - struct dma_buffparms *dmap; - audio_buf_info info; - count_info cinfo; - int fact, ret, changed, bits, count, err; - unsigned long flags; - - switch (cmd) - { - case SNDCTL_DSP_SUBDIVIDE: - ret = 0; - if (get_user(fact, (int __user *)arg)) - return -EFAULT; - if (audio_devs[dev]->open_mode & OPEN_WRITE) - ret = dma_subdivide(dev, dmap_out, fact); - if (ret < 0) - return ret; - if (audio_devs[dev]->open_mode != OPEN_WRITE || - (audio_devs[dev]->flags & DMA_DUPLEX && - audio_devs[dev]->open_mode & OPEN_READ)) - ret = dma_subdivide(dev, dmap_in, fact); - if (ret < 0) - return ret; - break; - - case SNDCTL_DSP_GETISPACE: - case SNDCTL_DSP_GETOSPACE: - dmap = dmap_out; - if (cmd == SNDCTL_DSP_GETISPACE && !(audio_devs[dev]->open_mode & OPEN_READ)) - return -EINVAL; - if (cmd == SNDCTL_DSP_GETOSPACE && !(audio_devs[dev]->open_mode & OPEN_WRITE)) - return -EINVAL; - if (cmd == SNDCTL_DSP_GETISPACE && audio_devs[dev]->flags & DMA_DUPLEX) - dmap = dmap_in; - if (dmap->mapping_flags & DMA_MAP_MAPPED) - return -EINVAL; - if (!(dmap->flags & DMA_ALLOC_DONE)) - reorganize_buffers(dev, dmap, (cmd == SNDCTL_DSP_GETISPACE)); - info.fragstotal = dmap->nbufs; - if (cmd == SNDCTL_DSP_GETISPACE) - info.fragments = dmap->qlen; - else - { - if (!DMAbuf_space_in_queue(dev)) - info.fragments = 0; - else - { - info.fragments = DMAbuf_space_in_queue(dev); - if (audio_devs[dev]->d->local_qlen) - { - int tmp = audio_devs[dev]->d->local_qlen(dev); - if (tmp && info.fragments) - tmp--; /* - * This buffer has been counted twice - */ - info.fragments -= tmp; - } - } - } - if (info.fragments < 0) - info.fragments = 0; - else if (info.fragments > dmap->nbufs) - info.fragments = dmap->nbufs; - - info.fragsize = dmap->fragment_size; - info.bytes = info.fragments * dmap->fragment_size; - - if (cmd == SNDCTL_DSP_GETISPACE && dmap->qlen) - info.bytes -= dmap->counts[dmap->qhead]; - else - { - info.fragments = info.bytes / dmap->fragment_size; - info.bytes -= dmap->user_counter % dmap->fragment_size; - } - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; - return 0; - - case SNDCTL_DSP_SETTRIGGER: - if (get_user(bits, (int __user *)arg)) - return -EFAULT; - bits &= audio_devs[dev]->open_mode; - if (audio_devs[dev]->d->trigger == NULL) - return -EINVAL; - if (!(audio_devs[dev]->flags & DMA_DUPLEX) && (bits & PCM_ENABLE_INPUT) && - (bits & PCM_ENABLE_OUTPUT)) - return -EINVAL; - - if (bits & PCM_ENABLE_INPUT) - { - spin_lock_irqsave(&dmap_in->lock,flags); - changed = (audio_devs[dev]->enable_bits ^ bits) & PCM_ENABLE_INPUT; - if (changed && audio_devs[dev]->go) - { - reorganize_buffers(dev, dmap_in, 1); - if ((err = audio_devs[dev]->d->prepare_for_input(dev, - dmap_in->fragment_size, dmap_in->nbufs)) < 0) { - spin_unlock_irqrestore(&dmap_in->lock,flags); - return err; - } - dmap_in->dma_mode = DMODE_INPUT; - audio_devs[dev]->enable_bits |= PCM_ENABLE_INPUT; - DMAbuf_activate_recording(dev, dmap_in); - } else - audio_devs[dev]->enable_bits &= ~PCM_ENABLE_INPUT; - spin_unlock_irqrestore(&dmap_in->lock,flags); - } - if (bits & PCM_ENABLE_OUTPUT) - { - spin_lock_irqsave(&dmap_out->lock,flags); - changed = (audio_devs[dev]->enable_bits ^ bits) & PCM_ENABLE_OUTPUT; - if (changed && - (dmap_out->mapping_flags & DMA_MAP_MAPPED || dmap_out->qlen > 0) && - audio_devs[dev]->go) - { - if (!(dmap_out->flags & DMA_ALLOC_DONE)) - reorganize_buffers(dev, dmap_out, 0); - dmap_out->dma_mode = DMODE_OUTPUT; - audio_devs[dev]->enable_bits |= PCM_ENABLE_OUTPUT; - dmap_out->counts[dmap_out->qhead] = dmap_out->fragment_size; - DMAbuf_launch_output(dev, dmap_out); - } else - audio_devs[dev]->enable_bits &= ~PCM_ENABLE_OUTPUT; - spin_unlock_irqrestore(&dmap_out->lock,flags); - } -#if 0 - if (changed && audio_devs[dev]->d->trigger) - audio_devs[dev]->d->trigger(dev, bits * audio_devs[dev]->go); -#endif - /* Falls through... */ - - case SNDCTL_DSP_GETTRIGGER: - ret = audio_devs[dev]->enable_bits; - break; - - case SNDCTL_DSP_SETSYNCRO: - if (!audio_devs[dev]->d->trigger) - return -EINVAL; - audio_devs[dev]->d->trigger(dev, 0); - audio_devs[dev]->go = 0; - return 0; - - case SNDCTL_DSP_GETIPTR: - if (!(audio_devs[dev]->open_mode & OPEN_READ)) - return -EINVAL; - spin_lock_irqsave(&dmap_in->lock,flags); - cinfo.bytes = dmap_in->byte_counter; - cinfo.ptr = DMAbuf_get_buffer_pointer(dev, dmap_in, DMODE_INPUT) & ~3; - if (cinfo.ptr < dmap_in->fragment_size && dmap_in->qtail != 0) - cinfo.bytes += dmap_in->bytes_in_use; /* Pointer wrap not handled yet */ - cinfo.blocks = dmap_in->qlen; - cinfo.bytes += cinfo.ptr; - if (dmap_in->mapping_flags & DMA_MAP_MAPPED) - dmap_in->qlen = 0; /* Reset interrupt counter */ - spin_unlock_irqrestore(&dmap_in->lock,flags); - if (copy_to_user(arg, &cinfo, sizeof(cinfo))) - return -EFAULT; - return 0; - - case SNDCTL_DSP_GETOPTR: - if (!(audio_devs[dev]->open_mode & OPEN_WRITE)) - return -EINVAL; - - spin_lock_irqsave(&dmap_out->lock,flags); - cinfo.bytes = dmap_out->byte_counter; - cinfo.ptr = DMAbuf_get_buffer_pointer(dev, dmap_out, DMODE_OUTPUT) & ~3; - if (cinfo.ptr < dmap_out->fragment_size && dmap_out->qhead != 0) - cinfo.bytes += dmap_out->bytes_in_use; /* Pointer wrap not handled yet */ - cinfo.blocks = dmap_out->qlen; - cinfo.bytes += cinfo.ptr; - if (dmap_out->mapping_flags & DMA_MAP_MAPPED) - dmap_out->qlen = 0; /* Reset interrupt counter */ - spin_unlock_irqrestore(&dmap_out->lock,flags); - if (copy_to_user(arg, &cinfo, sizeof(cinfo))) - return -EFAULT; - return 0; - - case SNDCTL_DSP_GETODELAY: - if (!(audio_devs[dev]->open_mode & OPEN_WRITE)) - return -EINVAL; - if (!(dmap_out->flags & DMA_ALLOC_DONE)) - { - ret=0; - break; - } - spin_lock_irqsave(&dmap_out->lock,flags); - /* Compute number of bytes that have been played */ - count = DMAbuf_get_buffer_pointer (dev, dmap_out, DMODE_OUTPUT); - if (count < dmap_out->fragment_size && dmap_out->qhead != 0) - count += dmap_out->bytes_in_use; /* Pointer wrap not handled yet */ - count += dmap_out->byte_counter; - /* Subtract current count from the number of bytes written by app */ - count = dmap_out->user_counter - count; - if (count < 0) - count = 0; - spin_unlock_irqrestore(&dmap_out->lock,flags); - ret = count; - break; - - case SNDCTL_DSP_POST: - if (audio_devs[dev]->dmap_out->qlen > 0) - if (!(audio_devs[dev]->dmap_out->flags & DMA_ACTIVE)) - DMAbuf_launch_output(dev, audio_devs[dev]->dmap_out); - return 0; - - case SNDCTL_DSP_GETBLKSIZE: - dmap = dmap_out; - if (audio_devs[dev]->open_mode & OPEN_WRITE) - reorganize_buffers(dev, dmap_out, (audio_devs[dev]->open_mode == OPEN_READ)); - if (audio_devs[dev]->open_mode == OPEN_READ || - (audio_devs[dev]->flags & DMA_DUPLEX && - audio_devs[dev]->open_mode & OPEN_READ)) - reorganize_buffers(dev, dmap_in, (audio_devs[dev]->open_mode == OPEN_READ)); - if (audio_devs[dev]->open_mode == OPEN_READ) - dmap = dmap_in; - ret = dmap->fragment_size; - break; - - case SNDCTL_DSP_SETFRAGMENT: - ret = 0; - if (get_user(fact, (int __user *)arg)) - return -EFAULT; - if (audio_devs[dev]->open_mode & OPEN_WRITE) - ret = dma_set_fragment(dev, dmap_out, fact); - if (ret < 0) - return ret; - if (audio_devs[dev]->open_mode == OPEN_READ || - (audio_devs[dev]->flags & DMA_DUPLEX && - audio_devs[dev]->open_mode & OPEN_READ)) - ret = dma_set_fragment(dev, dmap_in, fact); - if (ret < 0) - return ret; - if (!arg) /* don't know what this is good for, but preserve old semantics */ - return 0; - break; - - default: - if (!audio_devs[dev]->d->ioctl) - return -EINVAL; - return audio_devs[dev]->d->ioctl(dev, cmd, arg); - } - return put_user(ret, (int __user *)arg); -} diff --git a/sound/oss/bin2hex.c b/sound/oss/bin2hex.c deleted file mode 100644 index b59109eb0db4..000000000000 --- a/sound/oss/bin2hex.c +++ /dev/null @@ -1,39 +0,0 @@ -#include -#include -#include - -int main( int argc, const char * argv [] ) -{ - const char * varname; - int i = 0; - int c; - int id = 0; - - if(argv[1] && strcmp(argv[1],"-i")==0) - { - argv++; - argc--; - id=1; - } - - if(argc==1) - { - fprintf(stderr, "bin2hex: [-i] firmware\n"); - exit(1); - } - - varname = argv[1]; - printf( "/* automatically generated by bin2hex */\n" ); - printf( "static unsigned char %s [] %s =\n{\n", varname , id?"__initdata":""); - - while ( ( c = getchar( ) ) != EOF ) - { - if ( i != 0 && i % 10 == 0 ) - printf( "\n" ); - printf( "0x%02lx,", c & 0xFFl ); - i++; - } - - printf( "};\nstatic int %sLen = %d;\n", varname, i ); - return 0; -} diff --git a/sound/oss/coproc.h b/sound/oss/coproc.h deleted file mode 100644 index 7bec21bbdd88..000000000000 --- a/sound/oss/coproc.h +++ /dev/null @@ -1,12 +0,0 @@ -/* - * Definitions for various on board processors on the sound cards. For - * example DSP processors. - */ - -/* - * Coprocessor access types - */ -#define COPR_CUSTOM 0x0001 /* Custom applications */ -#define COPR_MIDI 0x0002 /* MIDI (MPU-401) emulation */ -#define COPR_PCM 0x0004 /* Digitized voice applications */ -#define COPR_SYNTH 0x0008 /* Music synthesis */ diff --git a/sound/oss/dev_table.c b/sound/oss/dev_table.c deleted file mode 100644 index 6dad51596b70..000000000000 --- a/sound/oss/dev_table.c +++ /dev/null @@ -1,256 +0,0 @@ -/* - * sound/oss/dev_table.c - * - * Device call tables. - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ - -#include - -#include "sound_config.h" - -struct audio_operations *audio_devs[MAX_AUDIO_DEV]; -EXPORT_SYMBOL(audio_devs); - -int num_audiodevs; -EXPORT_SYMBOL(num_audiodevs); - -struct mixer_operations *mixer_devs[MAX_MIXER_DEV]; -EXPORT_SYMBOL(mixer_devs); - -int num_mixers; -EXPORT_SYMBOL(num_mixers); - -struct synth_operations *synth_devs[MAX_SYNTH_DEV+MAX_MIDI_DEV]; -EXPORT_SYMBOL(synth_devs); - -int num_synths; - -struct midi_operations *midi_devs[MAX_MIDI_DEV]; -EXPORT_SYMBOL(midi_devs); - -int num_midis; -EXPORT_SYMBOL(num_midis); - -struct sound_timer_operations *sound_timer_devs[MAX_TIMER_DEV] = { - &default_sound_timer, NULL -}; -EXPORT_SYMBOL(sound_timer_devs); - -int num_sound_timers = 1; - - -static int sound_alloc_audiodev(void); - -int sound_install_audiodrv(int vers, char *name, struct audio_driver *driver, - int driver_size, int flags, unsigned int format_mask, - void *devc, int dma1, int dma2) -{ - struct audio_driver *d; - struct audio_operations *op; - int num; - - if (vers != AUDIO_DRIVER_VERSION || driver_size > sizeof(struct audio_driver)) { - printk(KERN_ERR "Sound: Incompatible audio driver for %s\n", name); - return -EINVAL; - } - num = sound_alloc_audiodev(); - - if (num == -1) { - printk(KERN_ERR "sound: Too many audio drivers\n"); - return -EBUSY; - } - d = (struct audio_driver *) (sound_mem_blocks[sound_nblocks] = vmalloc(sizeof(struct audio_driver))); - sound_nblocks++; - if (sound_nblocks >= MAX_MEM_BLOCKS) - sound_nblocks = MAX_MEM_BLOCKS - 1; - - op = (struct audio_operations *) (sound_mem_blocks[sound_nblocks] = vzalloc(sizeof(struct audio_operations))); - sound_nblocks++; - if (sound_nblocks >= MAX_MEM_BLOCKS) - sound_nblocks = MAX_MEM_BLOCKS - 1; - - if (d == NULL || op == NULL) { - printk(KERN_ERR "Sound: Can't allocate driver for (%s)\n", name); - sound_unload_audiodev(num); - return -ENOMEM; - } - init_waitqueue_head(&op->in_sleeper); - init_waitqueue_head(&op->out_sleeper); - init_waitqueue_head(&op->poll_sleeper); - if (driver_size < sizeof(struct audio_driver)) - memset((char *) d, 0, sizeof(struct audio_driver)); - - memcpy((char *) d, (char *) driver, driver_size); - - op->d = d; - strlcpy(op->name, name, sizeof(op->name)); - op->flags = flags; - op->format_mask = format_mask; - op->devc = devc; - - /* - * Hardcoded defaults - */ - audio_devs[num] = op; - - DMAbuf_init(num, dma1, dma2); - - audio_init_devices(); - return num; -} -EXPORT_SYMBOL(sound_install_audiodrv); - -int sound_install_mixer(int vers, char *name, struct mixer_operations *driver, - int driver_size, void *devc) -{ - struct mixer_operations *op; - - int n = sound_alloc_mixerdev(); - - if (n == -1) { - printk(KERN_ERR "Sound: Too many mixer drivers\n"); - return -EBUSY; - } - if (vers != MIXER_DRIVER_VERSION || - driver_size > sizeof(struct mixer_operations)) { - printk(KERN_ERR "Sound: Incompatible mixer driver for %s\n", name); - return -EINVAL; - } - - /* FIXME: This leaks a mixer_operations struct every time its called - until you unload sound! */ - - op = (struct mixer_operations *) (sound_mem_blocks[sound_nblocks] = vzalloc(sizeof(struct mixer_operations))); - sound_nblocks++; - if (sound_nblocks >= MAX_MEM_BLOCKS) - sound_nblocks = MAX_MEM_BLOCKS - 1; - - if (op == NULL) { - printk(KERN_ERR "Sound: Can't allocate mixer driver for (%s)\n", name); - return -ENOMEM; - } - memcpy((char *) op, (char *) driver, driver_size); - - strlcpy(op->name, name, sizeof(op->name)); - op->devc = devc; - - mixer_devs[n] = op; - return n; -} -EXPORT_SYMBOL(sound_install_mixer); - -void sound_unload_audiodev(int dev) -{ - if (dev != -1) { - DMAbuf_deinit(dev); - audio_devs[dev] = NULL; - unregister_sound_dsp((dev<<4)+3); - } -} -EXPORT_SYMBOL(sound_unload_audiodev); - -static int sound_alloc_audiodev(void) -{ - int i = register_sound_dsp(&oss_sound_fops, -1); - if(i==-1) - return i; - i>>=4; - if(i>=num_audiodevs) - num_audiodevs = i + 1; - return i; -} - -int sound_alloc_mididev(void) -{ - int i = register_sound_midi(&oss_sound_fops, -1); - if(i==-1) - return i; - i>>=4; - if(i>=num_midis) - num_midis = i + 1; - return i; -} -EXPORT_SYMBOL(sound_alloc_mididev); - -int sound_alloc_synthdev(void) -{ - int i; - - for (i = 0; i < MAX_SYNTH_DEV; i++) { - if (synth_devs[i] == NULL) { - if (i >= num_synths) - num_synths++; - return i; - } - } - return -1; -} -EXPORT_SYMBOL(sound_alloc_synthdev); - -int sound_alloc_mixerdev(void) -{ - int i = register_sound_mixer(&oss_sound_fops, -1); - if(i==-1) - return -1; - i>>=4; - if(i>=num_mixers) - num_mixers = i + 1; - return i; -} -EXPORT_SYMBOL(sound_alloc_mixerdev); - -int sound_alloc_timerdev(void) -{ - int i; - - for (i = 0; i < MAX_TIMER_DEV; i++) { - if (sound_timer_devs[i] == NULL) { - if (i >= num_sound_timers) - num_sound_timers++; - return i; - } - } - return -1; -} -EXPORT_SYMBOL(sound_alloc_timerdev); - -void sound_unload_mixerdev(int dev) -{ - if (dev != -1) { - mixer_devs[dev] = NULL; - unregister_sound_mixer(dev<<4); - num_mixers--; - } -} -EXPORT_SYMBOL(sound_unload_mixerdev); - -void sound_unload_mididev(int dev) -{ - if (dev != -1) { - midi_devs[dev] = NULL; - unregister_sound_midi((dev<<4)+2); - } -} -EXPORT_SYMBOL(sound_unload_mididev); - -void sound_unload_synthdev(int dev) -{ - if (dev != -1) - synth_devs[dev] = NULL; -} -EXPORT_SYMBOL(sound_unload_synthdev); - -void sound_unload_timerdev(int dev) -{ - if (dev != -1) - sound_timer_devs[dev] = NULL; -} -EXPORT_SYMBOL(sound_unload_timerdev); - diff --git a/sound/oss/dev_table.h b/sound/oss/dev_table.h deleted file mode 100644 index 0199a317c5a9..000000000000 --- a/sound/oss/dev_table.h +++ /dev/null @@ -1,390 +0,0 @@ -/* - * dev_table.h - * - * Global definitions for device call tables - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ - - -#ifndef _DEV_TABLE_H_ -#define _DEV_TABLE_H_ - -#include -/* - * Sound card numbers 27 to 999. (1 to 26 are defined in soundcard.h) - * Numbers 1000 to N are reserved for driver's internal use. - */ - -#define SNDCARD_DESKPROXL 27 /* Compaq Deskpro XL */ -#define SNDCARD_VIDC 28 /* ARMs VIDC */ -#define SNDCARD_SBPNP 29 -#define SNDCARD_SOFTOSS 36 -#define SNDCARD_VMIDI 37 -#define SNDCARD_OPL3SA1 38 /* Note: clash in msnd.h */ -#define SNDCARD_OPL3SA1_SB 39 -#define SNDCARD_OPL3SA1_MPU 40 -#define SNDCARD_WAVEFRONT 41 -#define SNDCARD_OPL3SA2 42 -#define SNDCARD_OPL3SA2_MPU 43 -#define SNDCARD_WAVEARTIST 44 /* Waveartist */ -#define SNDCARD_OPL3SA2_MSS 45 /* Originally missed */ -#define SNDCARD_AD1816 88 - -/* - * NOTE! NOTE! NOTE! NOTE! - * - * If you modify this file, please check the dev_table.c also. - * - * NOTE! NOTE! NOTE! NOTE! - */ - -struct driver_info -{ - char *driver_id; - int card_subtype; /* Driver specific. Usually 0 */ - int card_type; /* From soundcard.h */ - char *name; - void (*attach) (struct address_info *hw_config); - int (*probe) (struct address_info *hw_config); - void (*unload) (struct address_info *hw_config); -}; - -struct card_info -{ - int card_type; /* Link (search key) to the driver list */ - struct address_info config; - int enabled; - void *for_driver_use; -}; - - -/* - * Device specific parameters (used only by dmabuf.c) - */ -#define MAX_SUB_BUFFERS (32*MAX_REALTIME_FACTOR) - -#define DMODE_NONE 0 -#define DMODE_OUTPUT PCM_ENABLE_OUTPUT -#define DMODE_INPUT PCM_ENABLE_INPUT - -struct dma_buffparms -{ - int dma_mode; /* DMODE_INPUT, DMODE_OUTPUT or DMODE_NONE */ - int closing; - - /* - * Pointers to raw buffers - */ - - char *raw_buf; - unsigned long raw_buf_phys; - int buffsize; - - /* - * Device state tables - */ - - unsigned long flags; -#define DMA_BUSY 0x00000001 -#define DMA_RESTART 0x00000002 -#define DMA_ACTIVE 0x00000004 -#define DMA_STARTED 0x00000008 -#define DMA_EMPTY 0x00000010 -#define DMA_ALLOC_DONE 0x00000020 -#define DMA_SYNCING 0x00000040 -#define DMA_DIRTY 0x00000080 -#define DMA_POST 0x00000100 -#define DMA_NODMA 0x00000200 -#define DMA_NOTIMEOUT 0x00000400 - - int open_mode; - - /* - * Queue parameters. - */ - int qlen; - int qhead; - int qtail; - spinlock_t lock; - - int cfrag; /* Current incomplete fragment (write) */ - - int nbufs; - int counts[MAX_SUB_BUFFERS]; - int subdivision; - - int fragment_size; - int needs_reorg; - int max_fragments; - - int bytes_in_use; - - int underrun_count; - unsigned long byte_counter; - unsigned long user_counter; - unsigned long max_byte_counter; - int data_rate; /* Bytes/second */ - - int mapping_flags; -#define DMA_MAP_MAPPED 0x00000001 - char neutral_byte; - int dma; /* DMA channel */ - - int applic_profile; /* Application profile (APF_*) */ - /* Interrupt callback stuff */ - void (*audio_callback) (int dev, int parm); - int callback_parm; - - int buf_flags[MAX_SUB_BUFFERS]; -#define BUFF_EOF 0x00000001 /* Increment eof count */ -#define BUFF_DIRTY 0x00000002 /* Buffer written */ -}; - -/* - * Structure for use with various microcontrollers and DSP processors - * in the recent sound cards. - */ -typedef struct coproc_operations -{ - char name[64]; - struct module *owner; - int (*open) (void *devc, int sub_device); - void (*close) (void *devc, int sub_device); - int (*ioctl) (void *devc, unsigned int cmd, void __user * arg, int local); - void (*reset) (void *devc); - - void *devc; /* Driver specific info */ -} coproc_operations; - -struct audio_driver -{ - struct module *owner; - int (*open) (int dev, int mode); - void (*close) (int dev); - void (*output_block) (int dev, unsigned long buf, - int count, int intrflag); - void (*start_input) (int dev, unsigned long buf, - int count, int intrflag); - int (*ioctl) (int dev, unsigned int cmd, void __user * arg); - int (*prepare_for_input) (int dev, int bufsize, int nbufs); - int (*prepare_for_output) (int dev, int bufsize, int nbufs); - void (*halt_io) (int dev); - int (*local_qlen)(int dev); - void (*copy_user) (int dev, - char *localbuf, int localoffs, - const char __user *userbuf, int useroffs, - int max_in, int max_out, - int *used, int *returned, - int len); - void (*halt_input) (int dev); - void (*halt_output) (int dev); - void (*trigger) (int dev, int bits); - int (*set_speed)(int dev, int speed); - unsigned int (*set_bits)(int dev, unsigned int bits); - short (*set_channels)(int dev, short channels); - void (*postprocess_write)(int dev); /* Device spesific postprocessing for written data */ - void (*preprocess_read)(int dev); /* Device spesific preprocessing for read data */ - void (*mmap)(int dev); -}; - -struct audio_operations -{ - char name[128]; - int flags; -#define NOTHING_SPECIAL 0x00 -#define NEEDS_RESTART 0x01 -#define DMA_AUTOMODE 0x02 -#define DMA_DUPLEX 0x04 -#define DMA_PSEUDO_AUTOMODE 0x08 -#define DMA_HARDSTOP 0x10 -#define DMA_EXACT 0x40 -#define DMA_NORESET 0x80 - int format_mask; /* Bitmask for supported audio formats */ - void *devc; /* Driver specific info */ - struct audio_driver *d; - void *portc; /* Driver specific info */ - struct dma_buffparms *dmap_in, *dmap_out; - struct coproc_operations *coproc; - int mixer_dev; - int enable_bits; - int open_mode; - int go; - int min_fragment; /* 0 == unlimited */ - int max_fragment; /* 0 == unlimited */ - int parent_dev; /* 0 -> no parent, 1 to n -> parent=parent_dev+1 */ - - /* fields formerly in dmabuf.c */ - wait_queue_head_t in_sleeper; - wait_queue_head_t out_sleeper; - wait_queue_head_t poll_sleeper; - - /* fields formerly in audio.c */ - int audio_mode; - -#define AM_NONE 0 -#define AM_WRITE OPEN_WRITE -#define AM_READ OPEN_READ - - int local_format; - int audio_format; - int local_conversion; -#define CNV_MU_LAW 0x00000001 - - /* large structures at the end to keep offsets small */ - struct dma_buffparms dmaps[2]; -}; - -int *load_mixer_volumes(char *name, int *levels, int present); - -struct mixer_operations -{ - struct module *owner; - char id[16]; - char name[64]; - int (*ioctl) (int dev, unsigned int cmd, void __user * arg); - - void *devc; - int modify_counter; -}; - -struct synth_operations -{ - struct module *owner; - char *id; /* Unique identifier (ASCII) max 29 char */ - struct synth_info *info; - int midi_dev; - int synth_type; - int synth_subtype; - - int (*open) (int dev, int mode); - void (*close) (int dev); - int (*ioctl) (int dev, unsigned int cmd, void __user * arg); - int (*kill_note) (int dev, int voice, int note, int velocity); - int (*start_note) (int dev, int voice, int note, int velocity); - int (*set_instr) (int dev, int voice, int instr); - void (*reset) (int dev); - void (*hw_control) (int dev, unsigned char *event); - int (*load_patch) (int dev, int format, const char __user *addr, - int count, int pmgr_flag); - void (*aftertouch) (int dev, int voice, int pressure); - void (*controller) (int dev, int voice, int ctrl_num, int value); - void (*panning) (int dev, int voice, int value); - void (*volume_method) (int dev, int mode); - void (*bender) (int dev, int chn, int value); - int (*alloc_voice) (int dev, int chn, int note, struct voice_alloc_info *alloc); - void (*setup_voice) (int dev, int voice, int chn); - int (*send_sysex)(int dev, unsigned char *bytes, int len); - - struct voice_alloc_info alloc; - struct channel_info chn_info[16]; - int emulation; -#define EMU_GM 1 /* General MIDI */ -#define EMU_XG 2 /* Yamaha XG */ -#define MAX_SYSEX_BUF 64 - unsigned char sysex_buf[MAX_SYSEX_BUF]; - int sysex_ptr; -}; - -struct midi_input_info -{ - /* MIDI input scanner variables */ -#define MI_MAX 10 - volatile int m_busy; - unsigned char m_buf[MI_MAX]; - unsigned char m_prev_status; /* For running status */ - int m_ptr; -#define MST_INIT 0 -#define MST_DATA 1 -#define MST_SYSEX 2 - int m_state; - int m_left; -}; - -struct midi_operations -{ - struct module *owner; - struct midi_info info; - struct synth_operations *converter; - struct midi_input_info in_info; - int (*open) (int dev, int mode, - void (*inputintr)(int dev, unsigned char data), - void (*outputintr)(int dev) - ); - void (*close) (int dev); - int (*ioctl) (int dev, unsigned int cmd, void __user * arg); - int (*outputc) (int dev, unsigned char data); - int (*start_read) (int dev); - int (*end_read) (int dev); - void (*kick)(int dev); - int (*command) (int dev, unsigned char *data); - int (*buffer_status) (int dev); - int (*prefix_cmd) (int dev, unsigned char status); - struct coproc_operations *coproc; - void *devc; -}; - -struct sound_lowlev_timer -{ - int dev; - int priority; - unsigned int (*tmr_start)(int dev, unsigned int usecs); - void (*tmr_disable)(int dev); - void (*tmr_restart)(int dev); -}; - -struct sound_timer_operations -{ - struct module *owner; - struct sound_timer_info info; - int priority; - int devlink; - int (*open)(int dev, int mode); - void (*close)(int dev); - int (*event)(int dev, unsigned char *ev); - unsigned long (*get_time)(int dev); - int (*ioctl) (int dev, unsigned int cmd, void __user * arg); - void (*arm_timer)(int dev, long time); -}; - -extern struct sound_timer_operations default_sound_timer; - -extern struct audio_operations *audio_devs[MAX_AUDIO_DEV]; -extern int num_audiodevs; -extern struct mixer_operations *mixer_devs[MAX_MIXER_DEV]; -extern int num_mixers; -extern struct synth_operations *synth_devs[MAX_SYNTH_DEV+MAX_MIDI_DEV]; -extern int num_synths; -extern struct midi_operations *midi_devs[MAX_MIDI_DEV]; -extern int num_midis; -extern struct sound_timer_operations * sound_timer_devs[MAX_TIMER_DEV]; -extern int num_sound_timers; - -extern int sound_map_buffer (int dev, struct dma_buffparms *dmap, buffmem_desc *info); -void sound_timer_init (struct sound_lowlev_timer *t, char *name); -void sound_dma_intr (int dev, struct dma_buffparms *dmap, int chan); - -#define AUDIO_DRIVER_VERSION 2 -#define MIXER_DRIVER_VERSION 2 -int sound_install_audiodrv(int vers, char *name, struct audio_driver *driver, - int driver_size, int flags, unsigned int format_mask, - void *devc, int dma1, int dma2); -int sound_install_mixer(int vers, char *name, struct mixer_operations *driver, - int driver_size, void *devc); - -void sound_unload_audiodev(int dev); -void sound_unload_mixerdev(int dev); -void sound_unload_mididev(int dev); -void sound_unload_synthdev(int dev); -void sound_unload_timerdev(int dev); -int sound_alloc_mixerdev(void); -int sound_alloc_timerdev(void); -int sound_alloc_synthdev(void); -int sound_alloc_mididev(void); -#endif /* _DEV_TABLE_H_ */ - diff --git a/sound/oss/dmabuf.c b/sound/oss/dmabuf.c deleted file mode 100644 index c5dd396c66a2..000000000000 --- a/sound/oss/dmabuf.c +++ /dev/null @@ -1,1268 +0,0 @@ -/* - * sound/oss/dmabuf.c - * - * The DMA buffer manager for digitized voice applications - */ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * Thomas Sailer : moved several static variables into struct audio_operations - * (which is grossly misnamed btw.) because they have the same - * lifetime as the rest in there and dynamic allocation saves - * 12k or so - * Thomas Sailer : remove {in,out}_sleep_flag. It was used for the sleeper to - * determine if it was woken up by the expiring timeout or by - * an explicit wake_up. The return value from schedule_timeout - * can be used instead; if 0, the wakeup was due to the timeout. - * - * Rob Riggs Added persistent DMA buffers (1998/10/17) - */ - -#define BE_CONSERVATIVE -#define SAMPLE_ROUNDUP 0 - -#include -#include -#include - -#include "sound_config.h" -#include "sleep.h" - -#define DMAP_FREE_ON_CLOSE 0 -#define DMAP_KEEP_ON_CLOSE 1 -extern int sound_dmap_flag; - -static void dma_reset_output(int dev); -static void dma_reset_input(int dev); -static int local_start_dma(struct audio_operations *adev, unsigned long physaddr, int count, int dma_mode); - - - -static int debugmem; /* switched off by default */ -static int dma_buffsize = DSP_BUFFSIZE; - -static long dmabuf_timeout(struct dma_buffparms *dmap) -{ - long tmout; - - tmout = (dmap->fragment_size * HZ) / dmap->data_rate; - tmout += HZ / 5; /* Some safety distance */ - if (tmout < (HZ / 2)) - tmout = HZ / 2; - if (tmout > 20 * HZ) - tmout = 20 * HZ; - return tmout; -} - -static int sound_alloc_dmap(struct dma_buffparms *dmap) -{ - char *start_addr, *end_addr; - int dma_pagesize; - int sz, size; - struct page *page; - - dmap->mapping_flags &= ~DMA_MAP_MAPPED; - - if (dmap->raw_buf != NULL) - return 0; /* Already done */ - if (dma_buffsize < 4096) - dma_buffsize = 4096; - dma_pagesize = (dmap->dma < 4) ? (64 * 1024) : (128 * 1024); - - /* - * Now check for the Cyrix problem. - */ - - if(isa_dma_bridge_buggy==2) - dma_pagesize=32768; - - dmap->raw_buf = NULL; - dmap->buffsize = dma_buffsize; - if (dmap->buffsize > dma_pagesize) - dmap->buffsize = dma_pagesize; - start_addr = NULL; - /* - * Now loop until we get a free buffer. Try to get smaller buffer if - * it fails. Don't accept smaller than 8k buffer for performance - * reasons. - */ - while (start_addr == NULL && dmap->buffsize > PAGE_SIZE) { - for (sz = 0, size = PAGE_SIZE; size < dmap->buffsize; sz++, size <<= 1); - dmap->buffsize = PAGE_SIZE * (1 << sz); - start_addr = (char *) __get_free_pages(GFP_ATOMIC|GFP_DMA|__GFP_NOWARN, sz); - if (start_addr == NULL) - dmap->buffsize /= 2; - } - - if (start_addr == NULL) { - printk(KERN_WARNING "Sound error: Couldn't allocate DMA buffer\n"); - return -ENOMEM; - } else { - /* make some checks */ - end_addr = start_addr + dmap->buffsize - 1; - - if (debugmem) - printk(KERN_DEBUG "sound: start 0x%lx, end 0x%lx\n", (long) start_addr, (long) end_addr); - - /* now check if it fits into the same dma-pagesize */ - - if (((long) start_addr & ~(dma_pagesize - 1)) != ((long) end_addr & ~(dma_pagesize - 1)) - || end_addr >= (char *) (MAX_DMA_ADDRESS)) { - printk(KERN_ERR "sound: Got invalid address 0x%lx for %db DMA-buffer\n", (long) start_addr, dmap->buffsize); - return -EFAULT; - } - } - dmap->raw_buf = start_addr; - dmap->raw_buf_phys = dma_map_single(NULL, start_addr, dmap->buffsize, DMA_BIDIRECTIONAL); - - for (page = virt_to_page(start_addr); page <= virt_to_page(end_addr); page++) - SetPageReserved(page); - return 0; -} - -static void sound_free_dmap(struct dma_buffparms *dmap) -{ - int sz, size; - struct page *page; - unsigned long start_addr, end_addr; - - if (dmap->raw_buf == NULL) - return; - if (dmap->mapping_flags & DMA_MAP_MAPPED) - return; /* Don't free mmapped buffer. Will use it next time */ - for (sz = 0, size = PAGE_SIZE; size < dmap->buffsize; sz++, size <<= 1); - - start_addr = (unsigned long) dmap->raw_buf; - end_addr = start_addr + dmap->buffsize; - - for (page = virt_to_page(start_addr); page <= virt_to_page(end_addr); page++) - ClearPageReserved(page); - - dma_unmap_single(NULL, dmap->raw_buf_phys, dmap->buffsize, DMA_BIDIRECTIONAL); - free_pages((unsigned long) dmap->raw_buf, sz); - dmap->raw_buf = NULL; -} - - -/* Intel version !!!!!!!!! */ - -static int sound_start_dma(struct dma_buffparms *dmap, unsigned long physaddr, int count, int dma_mode) -{ - unsigned long flags; - int chan = dmap->dma; - - /* printk( "Start DMA%d %d, %d\n", chan, (int)(physaddr-dmap->raw_buf_phys), count); */ - - flags = claim_dma_lock(); - disable_dma(chan); - clear_dma_ff(chan); - set_dma_mode(chan, dma_mode); - set_dma_addr(chan, physaddr); - set_dma_count(chan, count); - enable_dma(chan); - release_dma_lock(flags); - - return 0; -} - -static void dma_init_buffers(struct dma_buffparms *dmap) -{ - dmap->qlen = dmap->qhead = dmap->qtail = dmap->user_counter = 0; - dmap->byte_counter = 0; - dmap->max_byte_counter = 8000 * 60 * 60; - dmap->bytes_in_use = dmap->buffsize; - - dmap->dma_mode = DMODE_NONE; - dmap->mapping_flags = 0; - dmap->neutral_byte = 0x80; - dmap->data_rate = 8000; - dmap->cfrag = -1; - dmap->closing = 0; - dmap->nbufs = 1; - dmap->flags = DMA_BUSY; /* Other flags off */ -} - -static int open_dmap(struct audio_operations *adev, int mode, struct dma_buffparms *dmap) -{ - int err; - - if (dmap->flags & DMA_BUSY) - return -EBUSY; - if ((err = sound_alloc_dmap(dmap)) < 0) - return err; - - if (dmap->raw_buf == NULL) { - printk(KERN_WARNING "Sound: DMA buffers not available\n"); - return -ENOSPC; /* Memory allocation failed during boot */ - } - if (dmap->dma >= 0 && sound_open_dma(dmap->dma, adev->name)) { - printk(KERN_WARNING "Unable to grab(2) DMA%d for the audio driver\n", dmap->dma); - return -EBUSY; - } - dma_init_buffers(dmap); - spin_lock_init(&dmap->lock); - dmap->open_mode = mode; - dmap->subdivision = dmap->underrun_count = 0; - dmap->fragment_size = 0; - dmap->max_fragments = 65536; /* Just a large value */ - dmap->byte_counter = 0; - dmap->max_byte_counter = 8000 * 60 * 60; - dmap->applic_profile = APF_NORMAL; - dmap->needs_reorg = 1; - dmap->audio_callback = NULL; - dmap->callback_parm = 0; - return 0; -} - -static void close_dmap(struct audio_operations *adev, struct dma_buffparms *dmap) -{ - unsigned long flags; - - if (dmap->dma >= 0) { - sound_close_dma(dmap->dma); - flags=claim_dma_lock(); - disable_dma(dmap->dma); - release_dma_lock(flags); - } - if (dmap->flags & DMA_BUSY) - dmap->dma_mode = DMODE_NONE; - dmap->flags &= ~DMA_BUSY; - - if (sound_dmap_flag == DMAP_FREE_ON_CLOSE) - sound_free_dmap(dmap); -} - - -static unsigned int default_set_bits(int dev, unsigned int bits) -{ - mm_segment_t fs = get_fs(); - - set_fs(get_ds()); - audio_devs[dev]->d->ioctl(dev, SNDCTL_DSP_SETFMT, (void __user *)&bits); - set_fs(fs); - return bits; -} - -static int default_set_speed(int dev, int speed) -{ - mm_segment_t fs = get_fs(); - - set_fs(get_ds()); - audio_devs[dev]->d->ioctl(dev, SNDCTL_DSP_SPEED, (void __user *)&speed); - set_fs(fs); - return speed; -} - -static short default_set_channels(int dev, short channels) -{ - int c = channels; - mm_segment_t fs = get_fs(); - - set_fs(get_ds()); - audio_devs[dev]->d->ioctl(dev, SNDCTL_DSP_CHANNELS, (void __user *)&c); - set_fs(fs); - return c; -} - -static void check_driver(struct audio_driver *d) -{ - if (d->set_speed == NULL) - d->set_speed = default_set_speed; - if (d->set_bits == NULL) - d->set_bits = default_set_bits; - if (d->set_channels == NULL) - d->set_channels = default_set_channels; -} - -int DMAbuf_open(int dev, int mode) -{ - struct audio_operations *adev = audio_devs[dev]; - int retval; - struct dma_buffparms *dmap_in = NULL; - struct dma_buffparms *dmap_out = NULL; - - if (!adev) - return -ENXIO; - if (!(adev->flags & DMA_DUPLEX)) - adev->dmap_in = adev->dmap_out; - check_driver(adev->d); - - if ((retval = adev->d->open(dev, mode)) < 0) - return retval; - dmap_out = adev->dmap_out; - dmap_in = adev->dmap_in; - if (dmap_in == dmap_out) - adev->flags &= ~DMA_DUPLEX; - - if (mode & OPEN_WRITE) { - if ((retval = open_dmap(adev, mode, dmap_out)) < 0) { - adev->d->close(dev); - return retval; - } - } - adev->enable_bits = mode; - - if (mode == OPEN_READ || (mode != OPEN_WRITE && (adev->flags & DMA_DUPLEX))) { - if ((retval = open_dmap(adev, mode, dmap_in)) < 0) { - adev->d->close(dev); - if (mode & OPEN_WRITE) - close_dmap(adev, dmap_out); - return retval; - } - } - adev->open_mode = mode; - adev->go = 1; - - adev->d->set_bits(dev, 8); - adev->d->set_channels(dev, 1); - adev->d->set_speed(dev, DSP_DEFAULT_SPEED); - if (adev->dmap_out->dma_mode == DMODE_OUTPUT) - memset(adev->dmap_out->raw_buf, adev->dmap_out->neutral_byte, - adev->dmap_out->bytes_in_use); - return 0; -} -/* MUST not hold the spinlock */ -void DMAbuf_reset(int dev) -{ - if (audio_devs[dev]->open_mode & OPEN_WRITE) - dma_reset_output(dev); - - if (audio_devs[dev]->open_mode & OPEN_READ) - dma_reset_input(dev); -} - -static void dma_reset_output(int dev) -{ - struct audio_operations *adev = audio_devs[dev]; - unsigned long flags,f ; - struct dma_buffparms *dmap = adev->dmap_out; - - if (!(dmap->flags & DMA_STARTED)) /* DMA is not active */ - return; - - /* - * First wait until the current fragment has been played completely - */ - spin_lock_irqsave(&dmap->lock,flags); - adev->dmap_out->flags |= DMA_SYNCING; - - adev->dmap_out->underrun_count = 0; - if (!signal_pending(current) && adev->dmap_out->qlen && - adev->dmap_out->underrun_count == 0){ - spin_unlock_irqrestore(&dmap->lock,flags); - oss_broken_sleep_on(&adev->out_sleeper, dmabuf_timeout(dmap)); - spin_lock_irqsave(&dmap->lock,flags); - } - adev->dmap_out->flags &= ~(DMA_SYNCING | DMA_ACTIVE); - - /* - * Finally shut the device off - */ - if (!(adev->flags & DMA_DUPLEX) || !adev->d->halt_output) - adev->d->halt_io(dev); - else - adev->d->halt_output(dev); - adev->dmap_out->flags &= ~DMA_STARTED; - - f=claim_dma_lock(); - clear_dma_ff(dmap->dma); - disable_dma(dmap->dma); - release_dma_lock(f); - - dmap->byte_counter = 0; - reorganize_buffers(dev, adev->dmap_out, 0); - dmap->qlen = dmap->qhead = dmap->qtail = dmap->user_counter = 0; - spin_unlock_irqrestore(&dmap->lock,flags); -} - -static void dma_reset_input(int dev) -{ - struct audio_operations *adev = audio_devs[dev]; - unsigned long flags; - struct dma_buffparms *dmap = adev->dmap_in; - - spin_lock_irqsave(&dmap->lock,flags); - if (!(adev->flags & DMA_DUPLEX) || !adev->d->halt_input) - adev->d->halt_io(dev); - else - adev->d->halt_input(dev); - adev->dmap_in->flags &= ~DMA_STARTED; - - dmap->qlen = dmap->qhead = dmap->qtail = dmap->user_counter = 0; - dmap->byte_counter = 0; - reorganize_buffers(dev, adev->dmap_in, 1); - spin_unlock_irqrestore(&dmap->lock,flags); -} -/* MUST be called with holding the dmap->lock */ -void DMAbuf_launch_output(int dev, struct dma_buffparms *dmap) -{ - struct audio_operations *adev = audio_devs[dev]; - - if (!((adev->enable_bits * adev->go) & PCM_ENABLE_OUTPUT)) - return; /* Don't start DMA yet */ - dmap->dma_mode = DMODE_OUTPUT; - - if (!(dmap->flags & DMA_ACTIVE) || !(adev->flags & DMA_AUTOMODE) || (dmap->flags & DMA_NODMA)) { - if (!(dmap->flags & DMA_STARTED)) { - reorganize_buffers(dev, dmap, 0); - if (adev->d->prepare_for_output(dev, dmap->fragment_size, dmap->nbufs)) - return; - if (!(dmap->flags & DMA_NODMA)) - local_start_dma(adev, dmap->raw_buf_phys, dmap->bytes_in_use,DMA_MODE_WRITE); - dmap->flags |= DMA_STARTED; - } - if (dmap->counts[dmap->qhead] == 0) - dmap->counts[dmap->qhead] = dmap->fragment_size; - dmap->dma_mode = DMODE_OUTPUT; - adev->d->output_block(dev, dmap->raw_buf_phys + dmap->qhead * dmap->fragment_size, - dmap->counts[dmap->qhead], 1); - if (adev->d->trigger) - adev->d->trigger(dev,adev->enable_bits * adev->go); - } - dmap->flags |= DMA_ACTIVE; -} - -int DMAbuf_sync(int dev) -{ - struct audio_operations *adev = audio_devs[dev]; - unsigned long flags; - int n = 0; - struct dma_buffparms *dmap; - - if (!adev->go && !(adev->enable_bits & PCM_ENABLE_OUTPUT)) - return 0; - - if (adev->dmap_out->dma_mode == DMODE_OUTPUT) { - dmap = adev->dmap_out; - spin_lock_irqsave(&dmap->lock,flags); - if (dmap->qlen > 0 && !(dmap->flags & DMA_ACTIVE)) - DMAbuf_launch_output(dev, dmap); - adev->dmap_out->flags |= DMA_SYNCING; - adev->dmap_out->underrun_count = 0; - while (!signal_pending(current) && n++ < adev->dmap_out->nbufs && - adev->dmap_out->qlen && adev->dmap_out->underrun_count == 0) { - long t = dmabuf_timeout(dmap); - spin_unlock_irqrestore(&dmap->lock,flags); - /* FIXME: not safe may miss events */ - t = oss_broken_sleep_on(&adev->out_sleeper, t); - spin_lock_irqsave(&dmap->lock,flags); - if (!t) { - adev->dmap_out->flags &= ~DMA_SYNCING; - spin_unlock_irqrestore(&dmap->lock,flags); - return adev->dmap_out->qlen; - } - } - adev->dmap_out->flags &= ~(DMA_SYNCING | DMA_ACTIVE); - - /* - * Some devices such as GUS have huge amount of on board RAM for the - * audio data. We have to wait until the device has finished playing. - */ - - /* still holding the lock */ - if (adev->d->local_qlen) { /* Device has hidden buffers */ - while (!signal_pending(current) && - adev->d->local_qlen(dev)){ - spin_unlock_irqrestore(&dmap->lock,flags); - oss_broken_sleep_on(&adev->out_sleeper, - dmabuf_timeout(dmap)); - spin_lock_irqsave(&dmap->lock,flags); - } - } - spin_unlock_irqrestore(&dmap->lock,flags); - } - adev->dmap_out->dma_mode = DMODE_NONE; - return adev->dmap_out->qlen; -} - -int DMAbuf_release(int dev, int mode) -{ - struct audio_operations *adev = audio_devs[dev]; - struct dma_buffparms *dmap; - unsigned long flags; - - dmap = adev->dmap_out; - if (adev->open_mode & OPEN_WRITE) - adev->dmap_out->closing = 1; - - if (adev->open_mode & OPEN_READ){ - adev->dmap_in->closing = 1; - dmap = adev->dmap_in; - } - if (adev->open_mode & OPEN_WRITE) - if (!(adev->dmap_out->mapping_flags & DMA_MAP_MAPPED)) - if (!signal_pending(current) && (adev->dmap_out->dma_mode == DMODE_OUTPUT)) - DMAbuf_sync(dev); - if (adev->dmap_out->dma_mode == DMODE_OUTPUT) - memset(adev->dmap_out->raw_buf, adev->dmap_out->neutral_byte, adev->dmap_out->bytes_in_use); - - DMAbuf_reset(dev); - spin_lock_irqsave(&dmap->lock,flags); - adev->d->close(dev); - - if (adev->open_mode & OPEN_WRITE) - close_dmap(adev, adev->dmap_out); - - if (adev->open_mode == OPEN_READ || - (adev->open_mode != OPEN_WRITE && - (adev->flags & DMA_DUPLEX))) - close_dmap(adev, adev->dmap_in); - adev->open_mode = 0; - spin_unlock_irqrestore(&dmap->lock,flags); - return 0; -} -/* called with dmap->lock dold */ -int DMAbuf_activate_recording(int dev, struct dma_buffparms *dmap) -{ - struct audio_operations *adev = audio_devs[dev]; - int err; - - if (!(adev->open_mode & OPEN_READ)) - return 0; - if (!(adev->enable_bits & PCM_ENABLE_INPUT)) - return 0; - if (dmap->dma_mode == DMODE_OUTPUT) { /* Direction change */ - /* release lock - it's not recursive */ - spin_unlock_irq(&dmap->lock); - DMAbuf_sync(dev); - DMAbuf_reset(dev); - spin_lock_irq(&dmap->lock); - dmap->dma_mode = DMODE_NONE; - } - if (!dmap->dma_mode) { - reorganize_buffers(dev, dmap, 1); - if ((err = adev->d->prepare_for_input(dev, - dmap->fragment_size, dmap->nbufs)) < 0) - return err; - dmap->dma_mode = DMODE_INPUT; - } - if (!(dmap->flags & DMA_ACTIVE)) { - if (dmap->needs_reorg) - reorganize_buffers(dev, dmap, 0); - local_start_dma(adev, dmap->raw_buf_phys, dmap->bytes_in_use, DMA_MODE_READ); - adev->d->start_input(dev, dmap->raw_buf_phys + dmap->qtail * dmap->fragment_size, - dmap->fragment_size, 0); - dmap->flags |= DMA_ACTIVE; - if (adev->d->trigger) - adev->d->trigger(dev, adev->enable_bits * adev->go); - } - return 0; -} -/* acquires lock */ -int DMAbuf_getrdbuffer(int dev, char **buf, int *len, int dontblock) -{ - struct audio_operations *adev = audio_devs[dev]; - unsigned long flags; - int err = 0, n = 0; - struct dma_buffparms *dmap = adev->dmap_in; - - if (!(adev->open_mode & OPEN_READ)) - return -EIO; - spin_lock_irqsave(&dmap->lock,flags); - if (dmap->needs_reorg) - reorganize_buffers(dev, dmap, 0); - if (adev->dmap_in->mapping_flags & DMA_MAP_MAPPED) { -/* printk(KERN_WARNING "Sound: Can't read from mmapped device (1)\n");*/ - spin_unlock_irqrestore(&dmap->lock,flags); - return -EINVAL; - } else while (dmap->qlen <= 0 && n++ < 10) { - long timeout = MAX_SCHEDULE_TIMEOUT; - if (!(adev->enable_bits & PCM_ENABLE_INPUT) || !adev->go) { - spin_unlock_irqrestore(&dmap->lock,flags); - return -EAGAIN; - } - if ((err = DMAbuf_activate_recording(dev, dmap)) < 0) { - spin_unlock_irqrestore(&dmap->lock,flags); - return err; - } - /* Wait for the next block */ - - if (dontblock) { - spin_unlock_irqrestore(&dmap->lock,flags); - return -EAGAIN; - } - if (adev->go) - timeout = dmabuf_timeout(dmap); - - spin_unlock_irqrestore(&dmap->lock,flags); - timeout = oss_broken_sleep_on(&adev->in_sleeper, timeout); - if (!timeout) { - /* FIXME: include device name */ - err = -EIO; - printk(KERN_WARNING "Sound: DMA (input) timed out - IRQ/DRQ config error?\n"); - dma_reset_input(dev); - } else - err = -EINTR; - spin_lock_irqsave(&dmap->lock,flags); - } - spin_unlock_irqrestore(&dmap->lock,flags); - - if (dmap->qlen <= 0) - return err ? err : -EINTR; - *buf = &dmap->raw_buf[dmap->qhead * dmap->fragment_size + dmap->counts[dmap->qhead]]; - *len = dmap->fragment_size - dmap->counts[dmap->qhead]; - - return dmap->qhead; -} - -int DMAbuf_rmchars(int dev, int buff_no, int c) -{ - struct audio_operations *adev = audio_devs[dev]; - struct dma_buffparms *dmap = adev->dmap_in; - int p = dmap->counts[dmap->qhead] + c; - - if (dmap->mapping_flags & DMA_MAP_MAPPED) - { -/* printk("Sound: Can't read from mmapped device (2)\n");*/ - return -EINVAL; - } - else if (dmap->qlen <= 0) - return -EIO; - else if (p >= dmap->fragment_size) { /* This buffer is completely empty */ - dmap->counts[dmap->qhead] = 0; - dmap->qlen--; - dmap->qhead = (dmap->qhead + 1) % dmap->nbufs; - } - else dmap->counts[dmap->qhead] = p; - - return 0; -} -/* MUST be called with dmap->lock hold */ -int DMAbuf_get_buffer_pointer(int dev, struct dma_buffparms *dmap, int direction) -{ - /* - * Try to approximate the active byte position of the DMA pointer within the - * buffer area as well as possible. - */ - - int pos; - unsigned long f; - - if (!(dmap->flags & DMA_ACTIVE)) - pos = 0; - else { - int chan = dmap->dma; - - f=claim_dma_lock(); - clear_dma_ff(chan); - - if(!isa_dma_bridge_buggy) - disable_dma(dmap->dma); - - pos = get_dma_residue(chan); - - pos = dmap->bytes_in_use - pos; - - if (!(dmap->mapping_flags & DMA_MAP_MAPPED)) { - if (direction == DMODE_OUTPUT) { - if (dmap->qhead == 0) - if (pos > dmap->fragment_size) - pos = 0; - } else { - if (dmap->qtail == 0) - if (pos > dmap->fragment_size) - pos = 0; - } - } - if (pos < 0) - pos = 0; - if (pos >= dmap->bytes_in_use) - pos = 0; - - if(!isa_dma_bridge_buggy) - enable_dma(dmap->dma); - - release_dma_lock(f); - } - /* printk( "%04x ", pos); */ - - return pos; -} - -/* - * DMAbuf_start_devices() is called by the /dev/music driver to start - * one or more audio devices at desired moment. - */ - -void DMAbuf_start_devices(unsigned int devmask) -{ - struct audio_operations *adev; - int dev; - - for (dev = 0; dev < num_audiodevs; dev++) { - if (!(devmask & (1 << dev))) - continue; - if (!(adev = audio_devs[dev])) - continue; - if (adev->open_mode == 0) - continue; - if (adev->go) - continue; - /* OK to start the device */ - adev->go = 1; - if (adev->d->trigger) - adev->d->trigger(dev,adev->enable_bits * adev->go); - } -} -/* via poll called without a lock ?*/ -int DMAbuf_space_in_queue(int dev) -{ - struct audio_operations *adev = audio_devs[dev]; - int len, max, tmp; - struct dma_buffparms *dmap = adev->dmap_out; - int lim = dmap->nbufs; - - if (lim < 2) - lim = 2; - - if (dmap->qlen >= lim) /* No space at all */ - return 0; - - /* - * Verify that there are no more pending buffers than the limit - * defined by the process. - */ - - max = dmap->max_fragments; - if (max > lim) - max = lim; - len = dmap->qlen; - - if (adev->d->local_qlen) { - tmp = adev->d->local_qlen(dev); - if (tmp && len) - tmp--; /* This buffer has been counted twice */ - len += tmp; - } - if (dmap->byte_counter % dmap->fragment_size) /* There is a partial fragment */ - len = len + 1; - - if (len >= max) - return 0; - return max - len; -} -/* MUST not hold the spinlock - this function may sleep */ -static int output_sleep(int dev, int dontblock) -{ - struct audio_operations *adev = audio_devs[dev]; - int err = 0; - struct dma_buffparms *dmap = adev->dmap_out; - long timeout; - long timeout_value; - - if (dontblock) - return -EAGAIN; - if (!(adev->enable_bits & PCM_ENABLE_OUTPUT)) - return -EAGAIN; - - /* - * Wait for free space - */ - if (signal_pending(current)) - return -EINTR; - timeout = (adev->go && !(dmap->flags & DMA_NOTIMEOUT)); - if (timeout) - timeout_value = dmabuf_timeout(dmap); - else - timeout_value = MAX_SCHEDULE_TIMEOUT; - timeout_value = oss_broken_sleep_on(&adev->out_sleeper, timeout_value); - if (timeout != MAX_SCHEDULE_TIMEOUT && !timeout_value) { - printk(KERN_WARNING "Sound: DMA (output) timed out - IRQ/DRQ config error?\n"); - dma_reset_output(dev); - } else { - if (signal_pending(current)) - err = -EINTR; - } - return err; -} -/* called with the lock held */ -static int find_output_space(int dev, char **buf, int *size) -{ - struct audio_operations *adev = audio_devs[dev]; - struct dma_buffparms *dmap = adev->dmap_out; - unsigned long active_offs; - long len, offs; - int maxfrags; - int occupied_bytes = (dmap->user_counter % dmap->fragment_size); - - *buf = dmap->raw_buf; - if (!(maxfrags = DMAbuf_space_in_queue(dev)) && !occupied_bytes) - return 0; - -#ifdef BE_CONSERVATIVE - active_offs = dmap->byte_counter + dmap->qhead * dmap->fragment_size; -#else - active_offs = max(DMAbuf_get_buffer_pointer(dev, dmap, DMODE_OUTPUT), 0); - /* Check for pointer wrapping situation */ - if (active_offs >= dmap->bytes_in_use) - active_offs = 0; - active_offs += dmap->byte_counter; -#endif - - offs = (dmap->user_counter % dmap->bytes_in_use) & ~SAMPLE_ROUNDUP; - if (offs < 0 || offs >= dmap->bytes_in_use) { - printk(KERN_ERR "Sound: Got unexpected offs %ld. Giving up.\n", offs); - printk("Counter = %ld, bytes=%d\n", dmap->user_counter, dmap->bytes_in_use); - return 0; - } - *buf = dmap->raw_buf + offs; - - len = active_offs + dmap->bytes_in_use - dmap->user_counter; /* Number of unused bytes in buffer */ - - if ((offs + len) > dmap->bytes_in_use) - len = dmap->bytes_in_use - offs; - if (len < 0) { - return 0; - } - if (len > ((maxfrags * dmap->fragment_size) - occupied_bytes)) - len = (maxfrags * dmap->fragment_size) - occupied_bytes; - *size = len & ~SAMPLE_ROUNDUP; - return (*size > 0); -} -/* acquires lock */ -int DMAbuf_getwrbuffer(int dev, char **buf, int *size, int dontblock) -{ - struct audio_operations *adev = audio_devs[dev]; - unsigned long flags; - int err = -EIO; - struct dma_buffparms *dmap = adev->dmap_out; - - if (dmap->mapping_flags & DMA_MAP_MAPPED) { -/* printk(KERN_DEBUG "Sound: Can't write to mmapped device (3)\n");*/ - return -EINVAL; - } - spin_lock_irqsave(&dmap->lock,flags); - if (dmap->needs_reorg) - reorganize_buffers(dev, dmap, 0); - - if (dmap->dma_mode == DMODE_INPUT) { /* Direction change */ - spin_unlock_irqrestore(&dmap->lock,flags); - DMAbuf_reset(dev); - spin_lock_irqsave(&dmap->lock,flags); - } - dmap->dma_mode = DMODE_OUTPUT; - - while (find_output_space(dev, buf, size) <= 0) { - spin_unlock_irqrestore(&dmap->lock,flags); - if ((err = output_sleep(dev, dontblock)) < 0) { - return err; - } - spin_lock_irqsave(&dmap->lock,flags); - } - - spin_unlock_irqrestore(&dmap->lock,flags); - return 0; -} -/* has to acquire dmap->lock */ -int DMAbuf_move_wrpointer(int dev, int l) -{ - struct audio_operations *adev = audio_devs[dev]; - struct dma_buffparms *dmap = adev->dmap_out; - unsigned long ptr; - unsigned long end_ptr, p; - int post; - unsigned long flags; - - spin_lock_irqsave(&dmap->lock,flags); - post= (dmap->flags & DMA_POST); - ptr = (dmap->user_counter / dmap->fragment_size) * dmap->fragment_size; - - dmap->flags &= ~DMA_POST; - dmap->cfrag = -1; - dmap->user_counter += l; - dmap->flags |= DMA_DIRTY; - - if (dmap->byte_counter >= dmap->max_byte_counter) { - /* Wrap the byte counters */ - long decr = dmap->byte_counter; - dmap->byte_counter = (dmap->byte_counter % dmap->bytes_in_use); - decr -= dmap->byte_counter; - dmap->user_counter -= decr; - } - end_ptr = (dmap->user_counter / dmap->fragment_size) * dmap->fragment_size; - - p = (dmap->user_counter - 1) % dmap->bytes_in_use; - dmap->neutral_byte = dmap->raw_buf[p]; - - /* Update the fragment based bookkeeping too */ - while (ptr < end_ptr) { - dmap->counts[dmap->qtail] = dmap->fragment_size; - dmap->qtail = (dmap->qtail + 1) % dmap->nbufs; - dmap->qlen++; - ptr += dmap->fragment_size; - } - - dmap->counts[dmap->qtail] = dmap->user_counter - ptr; - - /* - * Let the low level driver perform some postprocessing to - * the written data. - */ - if (adev->d->postprocess_write) - adev->d->postprocess_write(dev); - - if (!(dmap->flags & DMA_ACTIVE)) - if (dmap->qlen > 1 || (dmap->qlen > 0 && (post || dmap->qlen >= dmap->nbufs - 1))) - DMAbuf_launch_output(dev, dmap); - - spin_unlock_irqrestore(&dmap->lock,flags); - return 0; -} - -int DMAbuf_start_dma(int dev, unsigned long physaddr, int count, int dma_mode) -{ - struct audio_operations *adev = audio_devs[dev]; - struct dma_buffparms *dmap = (dma_mode == DMA_MODE_WRITE) ? adev->dmap_out : adev->dmap_in; - - if (dmap->raw_buf == NULL) { - printk(KERN_ERR "sound: DMA buffer(1) == NULL\n"); - printk("Device %d, chn=%s\n", dev, (dmap == adev->dmap_out) ? "out" : "in"); - return 0; - } - if (dmap->dma < 0) - return 0; - sound_start_dma(dmap, physaddr, count, dma_mode); - return count; -} -EXPORT_SYMBOL(DMAbuf_start_dma); - -static int local_start_dma(struct audio_operations *adev, unsigned long physaddr, int count, int dma_mode) -{ - struct dma_buffparms *dmap = (dma_mode == DMA_MODE_WRITE) ? adev->dmap_out : adev->dmap_in; - - if (dmap->raw_buf == NULL) { - printk(KERN_ERR "sound: DMA buffer(2) == NULL\n"); - printk(KERN_ERR "Device %s, chn=%s\n", adev->name, (dmap == adev->dmap_out) ? "out" : "in"); - return 0; - } - if (dmap->flags & DMA_NODMA) - return 1; - if (dmap->dma < 0) - return 0; - sound_start_dma(dmap, dmap->raw_buf_phys, dmap->bytes_in_use, dma_mode | DMA_AUTOINIT); - dmap->flags |= DMA_STARTED; - return count; -} - -static void finish_output_interrupt(int dev, struct dma_buffparms *dmap) -{ - struct audio_operations *adev = audio_devs[dev]; - - if (dmap->audio_callback != NULL) - dmap->audio_callback(dev, dmap->callback_parm); - wake_up(&adev->out_sleeper); - wake_up(&adev->poll_sleeper); -} -/* called with dmap->lock held in irq context*/ -static void do_outputintr(int dev, int dummy) -{ - struct audio_operations *adev = audio_devs[dev]; - struct dma_buffparms *dmap = adev->dmap_out; - int this_fragment; - - if (dmap->raw_buf == NULL) { - printk(KERN_ERR "Sound: Error. Audio interrupt (%d) after freeing buffers.\n", dev); - return; - } - if (dmap->mapping_flags & DMA_MAP_MAPPED) { /* Virtual memory mapped access */ - /* mmapped access */ - dmap->qhead = (dmap->qhead + 1) % dmap->nbufs; - if (dmap->qhead == 0) { /* Wrapped */ - dmap->byte_counter += dmap->bytes_in_use; - if (dmap->byte_counter >= dmap->max_byte_counter) { /* Overflow */ - long decr = dmap->byte_counter; - dmap->byte_counter = (dmap->byte_counter % dmap->bytes_in_use); - decr -= dmap->byte_counter; - dmap->user_counter -= decr; - } - } - dmap->qlen++; /* Yes increment it (don't decrement) */ - if (!(adev->flags & DMA_AUTOMODE)) - dmap->flags &= ~DMA_ACTIVE; - dmap->counts[dmap->qhead] = dmap->fragment_size; - DMAbuf_launch_output(dev, dmap); - finish_output_interrupt(dev, dmap); - return; - } - - dmap->qlen--; - this_fragment = dmap->qhead; - dmap->qhead = (dmap->qhead + 1) % dmap->nbufs; - - if (dmap->qhead == 0) { /* Wrapped */ - dmap->byte_counter += dmap->bytes_in_use; - if (dmap->byte_counter >= dmap->max_byte_counter) { /* Overflow */ - long decr = dmap->byte_counter; - dmap->byte_counter = (dmap->byte_counter % dmap->bytes_in_use); - decr -= dmap->byte_counter; - dmap->user_counter -= decr; - } - } - if (!(adev->flags & DMA_AUTOMODE)) - dmap->flags &= ~DMA_ACTIVE; - - /* - * This is dmap->qlen <= 0 except when closing when - * dmap->qlen < 0 - */ - - while (dmap->qlen <= -dmap->closing) { - dmap->underrun_count++; - dmap->qlen++; - if ((dmap->flags & DMA_DIRTY) && dmap->applic_profile != APF_CPUINTENS) { - dmap->flags &= ~DMA_DIRTY; - memset(adev->dmap_out->raw_buf, adev->dmap_out->neutral_byte, - adev->dmap_out->buffsize); - } - dmap->user_counter += dmap->fragment_size; - dmap->qtail = (dmap->qtail + 1) % dmap->nbufs; - } - if (dmap->qlen > 0) - DMAbuf_launch_output(dev, dmap); - finish_output_interrupt(dev, dmap); -} -/* called in irq context */ -void DMAbuf_outputintr(int dev, int notify_only) -{ - struct audio_operations *adev = audio_devs[dev]; - unsigned long flags; - struct dma_buffparms *dmap = adev->dmap_out; - - spin_lock_irqsave(&dmap->lock,flags); - if (!(dmap->flags & DMA_NODMA)) { - int chan = dmap->dma, pos, n; - unsigned long f; - - f=claim_dma_lock(); - - if(!isa_dma_bridge_buggy) - disable_dma(dmap->dma); - clear_dma_ff(chan); - pos = dmap->bytes_in_use - get_dma_residue(chan); - if(!isa_dma_bridge_buggy) - enable_dma(dmap->dma); - release_dma_lock(f); - - pos = pos / dmap->fragment_size; /* Actual qhead */ - if (pos < 0 || pos >= dmap->nbufs) - pos = 0; - n = 0; - while (dmap->qhead != pos && n++ < dmap->nbufs) - do_outputintr(dev, notify_only); - } - else - do_outputintr(dev, notify_only); - spin_unlock_irqrestore(&dmap->lock,flags); -} -EXPORT_SYMBOL(DMAbuf_outputintr); - -/* called with dmap->lock held in irq context */ -static void do_inputintr(int dev) -{ - struct audio_operations *adev = audio_devs[dev]; - struct dma_buffparms *dmap = adev->dmap_in; - - if (dmap->raw_buf == NULL) { - printk(KERN_ERR "Sound: Fatal error. Audio interrupt after freeing buffers.\n"); - return; - } - if (dmap->mapping_flags & DMA_MAP_MAPPED) { - dmap->qtail = (dmap->qtail + 1) % dmap->nbufs; - if (dmap->qtail == 0) { /* Wrapped */ - dmap->byte_counter += dmap->bytes_in_use; - if (dmap->byte_counter >= dmap->max_byte_counter) { /* Overflow */ - long decr = dmap->byte_counter; - dmap->byte_counter = (dmap->byte_counter % dmap->bytes_in_use) + dmap->bytes_in_use; - decr -= dmap->byte_counter; - dmap->user_counter -= decr; - } - } - dmap->qlen++; - - if (!(adev->flags & DMA_AUTOMODE)) { - if (dmap->needs_reorg) - reorganize_buffers(dev, dmap, 0); - local_start_dma(adev, dmap->raw_buf_phys, dmap->bytes_in_use,DMA_MODE_READ); - adev->d->start_input(dev, dmap->raw_buf_phys + dmap->qtail * dmap->fragment_size, - dmap->fragment_size, 1); - if (adev->d->trigger) - adev->d->trigger(dev, adev->enable_bits * adev->go); - } - dmap->flags |= DMA_ACTIVE; - } else if (dmap->qlen >= (dmap->nbufs - 1)) { - printk(KERN_WARNING "Sound: Recording overrun\n"); - dmap->underrun_count++; - - /* Just throw away the oldest fragment but keep the engine running */ - dmap->qhead = (dmap->qhead + 1) % dmap->nbufs; - dmap->qtail = (dmap->qtail + 1) % dmap->nbufs; - } else if (dmap->qlen >= 0 && dmap->qlen < dmap->nbufs) { - dmap->qlen++; - dmap->qtail = (dmap->qtail + 1) % dmap->nbufs; - if (dmap->qtail == 0) { /* Wrapped */ - dmap->byte_counter += dmap->bytes_in_use; - if (dmap->byte_counter >= dmap->max_byte_counter) { /* Overflow */ - long decr = dmap->byte_counter; - dmap->byte_counter = (dmap->byte_counter % dmap->bytes_in_use) + dmap->bytes_in_use; - decr -= dmap->byte_counter; - dmap->user_counter -= decr; - } - } - } - if (!(adev->flags & DMA_AUTOMODE) || (dmap->flags & DMA_NODMA)) { - local_start_dma(adev, dmap->raw_buf_phys, dmap->bytes_in_use, DMA_MODE_READ); - adev->d->start_input(dev, dmap->raw_buf_phys + dmap->qtail * dmap->fragment_size, dmap->fragment_size, 1); - if (adev->d->trigger) - adev->d->trigger(dev,adev->enable_bits * adev->go); - } - dmap->flags |= DMA_ACTIVE; - if (dmap->qlen > 0) - { - wake_up(&adev->in_sleeper); - wake_up(&adev->poll_sleeper); - } -} -/* called in irq context */ -void DMAbuf_inputintr(int dev) -{ - struct audio_operations *adev = audio_devs[dev]; - struct dma_buffparms *dmap = adev->dmap_in; - unsigned long flags; - - spin_lock_irqsave(&dmap->lock,flags); - - if (!(dmap->flags & DMA_NODMA)) { - int chan = dmap->dma, pos, n; - unsigned long f; - - f=claim_dma_lock(); - if(!isa_dma_bridge_buggy) - disable_dma(dmap->dma); - clear_dma_ff(chan); - pos = dmap->bytes_in_use - get_dma_residue(chan); - if(!isa_dma_bridge_buggy) - enable_dma(dmap->dma); - release_dma_lock(f); - - pos = pos / dmap->fragment_size; /* Actual qhead */ - if (pos < 0 || pos >= dmap->nbufs) - pos = 0; - - n = 0; - while (dmap->qtail != pos && ++n < dmap->nbufs) - do_inputintr(dev); - } else - do_inputintr(dev); - spin_unlock_irqrestore(&dmap->lock,flags); -} -EXPORT_SYMBOL(DMAbuf_inputintr); - -void DMAbuf_init(int dev, int dma1, int dma2) -{ - struct audio_operations *adev = audio_devs[dev]; - /* - * NOTE! This routine could be called several times. - */ - - if (adev && adev->dmap_out == NULL) { - if (adev->d == NULL) - panic("OSS: audio_devs[%d]->d == NULL\n", dev); - - if (adev->parent_dev) { /* Use DMA map of the parent dev */ - int parent = adev->parent_dev - 1; - adev->dmap_out = audio_devs[parent]->dmap_out; - adev->dmap_in = audio_devs[parent]->dmap_in; - } else { - adev->dmap_out = adev->dmap_in = &adev->dmaps[0]; - adev->dmap_out->dma = dma1; - if (adev->flags & DMA_DUPLEX) { - adev->dmap_in = &adev->dmaps[1]; - adev->dmap_in->dma = dma2; - } - } - /* Persistent DMA buffers allocated here */ - if (sound_dmap_flag == DMAP_KEEP_ON_CLOSE) { - if (adev->dmap_in->raw_buf == NULL) - sound_alloc_dmap(adev->dmap_in); - if (adev->dmap_out->raw_buf == NULL) - sound_alloc_dmap(adev->dmap_out); - } - } -} - -/* No kernel lock - DMAbuf_activate_recording protected by global cli/sti */ -static unsigned int poll_input(struct file * file, int dev, poll_table *wait) -{ - struct audio_operations *adev = audio_devs[dev]; - struct dma_buffparms *dmap = adev->dmap_in; - - if (!(adev->open_mode & OPEN_READ)) - return 0; - if (dmap->mapping_flags & DMA_MAP_MAPPED) { - if (dmap->qlen) - return POLLIN | POLLRDNORM; - return 0; - } - if (dmap->dma_mode != DMODE_INPUT) { - if (dmap->dma_mode == DMODE_NONE && - adev->enable_bits & PCM_ENABLE_INPUT && - !dmap->qlen && adev->go) { - unsigned long flags; - - spin_lock_irqsave(&dmap->lock,flags); - DMAbuf_activate_recording(dev, dmap); - spin_unlock_irqrestore(&dmap->lock,flags); - } - return 0; - } - if (!dmap->qlen) - return 0; - return POLLIN | POLLRDNORM; -} - -static unsigned int poll_output(struct file * file, int dev, poll_table *wait) -{ - struct audio_operations *adev = audio_devs[dev]; - struct dma_buffparms *dmap = adev->dmap_out; - - if (!(adev->open_mode & OPEN_WRITE)) - return 0; - if (dmap->mapping_flags & DMA_MAP_MAPPED) { - if (dmap->qlen) - return POLLOUT | POLLWRNORM; - return 0; - } - if (dmap->dma_mode == DMODE_INPUT) - return 0; - if (dmap->dma_mode == DMODE_NONE) - return POLLOUT | POLLWRNORM; - if (!DMAbuf_space_in_queue(dev)) - return 0; - return POLLOUT | POLLWRNORM; -} - -unsigned int DMAbuf_poll(struct file * file, int dev, poll_table *wait) -{ - struct audio_operations *adev = audio_devs[dev]; - poll_wait(file, &adev->poll_sleeper, wait); - return poll_input(file, dev, wait) | poll_output(file, dev, wait); -} - -void DMAbuf_deinit(int dev) -{ - struct audio_operations *adev = audio_devs[dev]; - /* This routine is called when driver is being unloaded */ - if (!adev) - return; - - /* Persistent DMA buffers deallocated here */ - if (sound_dmap_flag == DMAP_KEEP_ON_CLOSE) { - sound_free_dmap(adev->dmap_out); - if (adev->flags & DMA_DUPLEX) - sound_free_dmap(adev->dmap_in); - } -} diff --git a/sound/oss/hex2hex.c b/sound/oss/hex2hex.c deleted file mode 100644 index 041ef5c52bc2..000000000000 --- a/sound/oss/hex2hex.c +++ /dev/null @@ -1,101 +0,0 @@ -/* - * hex2hex reads stdin in Intel HEX format and produces an - * (unsigned char) array which contains the bytes and writes it - * to stdout using C syntax - */ - -#include -#include -#include - -#define ABANDON(why) { fprintf(stderr, "%s\n", why); exit(1); } -#define MAX_SIZE (256*1024) -unsigned char buf[MAX_SIZE]; - -static int loadhex(FILE *inf, unsigned char *buf) -{ - int l=0, c, i; - - while ((c=getc(inf))!=EOF) - { - if (c == ':') /* Sync with beginning of line */ - { - int n, check; - unsigned char sum; - int addr; - int linetype; - - if (fscanf(inf, "%02x", &n) != 1) - ABANDON("File format error"); - sum = n; - - if (fscanf(inf, "%04x", &addr) != 1) - ABANDON("File format error"); - sum += addr/256; - sum += addr%256; - - if (fscanf(inf, "%02x", &linetype) != 1) - ABANDON("File format error"); - sum += linetype; - - if (linetype != 0) - continue; - - for (i=0;i= MAX_SIZE) - ABANDON("File too large"); - buf[addr++] = c; - if (addr > l) - l = addr; - sum += c; - } - - if (fscanf(inf, "%02x", &check) != 1) - ABANDON("File format error"); - - sum = ~sum + 1; - if (check != sum) - ABANDON("Line checksum error"); - } - } - - return l; -} - -int main( int argc, const char * argv [] ) -{ - const char * varline; - int i,l; - int id=0; - - if(argv[1] && strcmp(argv[1], "-i")==0) - { - argv++; - argc--; - id=1; - } - if(argv[1]==NULL) - { - fprintf(stderr,"hex2hex: [-i] filename\n"); - exit(1); - } - varline = argv[1]; - l = loadhex(stdin, buf); - - printf("/*\n *\t Computer generated file. Do not edit.\n */\n"); - printf("static int %s_len = %d;\n", varline, l); - printf("static unsigned char %s[] %s = {\n", varline, id?"__initdata":""); - - for (i=0;i - * - * XpressAudio(tm) is used on the Cyrix MediaGX (now NatSemi Geode) systems. - * The older version (VSA1) provides fairly good soundblaster emulation - * although there are a couple of bugs: large DMA buffers break record, - * and the MPU event handling seems suspect. VSA2 allows the native driver - * to control the AC97 audio engine directly and requires a different driver. - * - * Thanks to National Semiconductor for providing the needed information - * on the XpressAudio(tm) internals. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * TO DO: - * Investigate whether we can portably support Cognac (5520) in the - * same manner. - */ - -#include -#include -#include -#include -#include - -#include "sound_config.h" - -#include "sb.h" - -/* - * Read a soundblaster compatible mixer register. - * In this case we are actually reading an SMI trap - * not real hardware. - */ - -static u8 mixer_read(unsigned long io, u8 reg) -{ - outb(reg, io + 4); - udelay(20); - reg = inb(io + 5); - udelay(20); - return reg; -} - -static int probe_one(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - struct address_info *hw_config; - unsigned long base; - void __iomem *mem; - unsigned long io; - u16 map; - u8 irq, dma8, dma16; - int oldquiet; - extern int sb_be_quiet; - - base = pci_resource_start(pdev, 0); - if(base == 0UL) - return 1; - - mem = ioremap(base, 128); - if (!mem) - return 1; - map = readw(mem + 0x18); /* Read the SMI enables */ - iounmap(mem); - - /* Map bits - 0:1 * 0x20 + 0x200 = sb base - 2 sb enable - 3 adlib enable - 5 MPU enable 0x330 - 6 MPU enable 0x300 - - The other bits may be used internally so must be masked */ - - io = 0x220 + 0x20 * (map & 3); - - if(map & (1<<2)) - printk(KERN_INFO "kahlua: XpressAudio at 0x%lx\n", io); - else - return 1; - - if(map & (1<<5)) - printk(KERN_INFO "kahlua: MPU at 0x300\n"); - else if(map & (1<<6)) - printk(KERN_INFO "kahlua: MPU at 0x330\n"); - - irq = mixer_read(io, 0x80) & 0x0F; - dma8 = mixer_read(io, 0x81); - - // printk("IRQ=%x MAP=%x DMA=%x\n", irq, map, dma8); - - if(dma8 & 0x20) - dma16 = 5; - else if(dma8 & 0x40) - dma16 = 6; - else if(dma8 & 0x80) - dma16 = 7; - else - { - printk(KERN_ERR "kahlua: No 16bit DMA enabled.\n"); - return 1; - } - - if(dma8 & 0x01) - dma8 = 0; - else if(dma8 & 0x02) - dma8 = 1; - else if(dma8 & 0x08) - dma8 = 3; - else - { - printk(KERN_ERR "kahlua: No 8bit DMA enabled.\n"); - return 1; - } - - if(irq & 1) - irq = 9; - else if(irq & 2) - irq = 5; - else if(irq & 4) - irq = 7; - else if(irq & 8) - irq = 10; - else - { - printk(KERN_ERR "kahlua: SB IRQ not set.\n"); - return 1; - } - - printk(KERN_INFO "kahlua: XpressAudio on IRQ %d, DMA %d, %d\n", - irq, dma8, dma16); - - hw_config = kzalloc(sizeof(struct address_info), GFP_KERNEL); - if(hw_config == NULL) - { - printk(KERN_ERR "kahlua: out of memory.\n"); - return 1; - } - - pci_set_drvdata(pdev, hw_config); - - hw_config->io_base = io; - hw_config->irq = irq; - hw_config->dma = dma8; - hw_config->dma2 = dma16; - hw_config->name = "Cyrix XpressAudio"; - hw_config->driver_use_1 = SB_NO_MIDI | SB_PCI_IRQ; - - if (!request_region(io, 16, "soundblaster")) - goto err_out_free; - - if(sb_dsp_detect(hw_config, 0, 0, NULL)==0) - { - printk(KERN_ERR "kahlua: audio not responding.\n"); - release_region(io, 16); - goto err_out_free; - } - - oldquiet = sb_be_quiet; - sb_be_quiet = 1; - if(sb_dsp_init(hw_config, THIS_MODULE)) - { - sb_be_quiet = oldquiet; - goto err_out_free; - } - sb_be_quiet = oldquiet; - - return 0; - -err_out_free: - kfree(hw_config); - return 1; -} - -static void remove_one(struct pci_dev *pdev) -{ - struct address_info *hw_config = pci_get_drvdata(pdev); - sb_dsp_unload(hw_config, 0); - kfree(hw_config); -} - -MODULE_AUTHOR("Alan Cox"); -MODULE_DESCRIPTION("Kahlua VSA1 PCI Audio"); -MODULE_LICENSE("GPL"); - -/* - * 5530 only. The 5510/5520 decode is different. - */ - -static const struct pci_device_id id_tbl[] = { - { PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5530_AUDIO), 0 }, - { } -}; - -MODULE_DEVICE_TABLE(pci, id_tbl); - -static struct pci_driver kahlua_driver = { - .name = "kahlua", - .id_table = id_tbl, - .probe = probe_one, - .remove = remove_one, -}; - - -static int __init kahlua_init_module(void) -{ - printk(KERN_INFO "Cyrix Kahlua VSA1 XpressAudio support (c) Copyright 2003 Red Hat Inc\n"); - return pci_register_driver(&kahlua_driver); -} - -static void kahlua_cleanup_module(void) -{ - pci_unregister_driver(&kahlua_driver); -} - - -module_init(kahlua_init_module); -module_exit(kahlua_cleanup_module); - diff --git a/sound/oss/midi_ctrl.h b/sound/oss/midi_ctrl.h deleted file mode 100644 index 3353e5a67c24..000000000000 --- a/sound/oss/midi_ctrl.h +++ /dev/null @@ -1,22 +0,0 @@ -static unsigned char ctrl_def_values[128] = -{ - 0x40,0x00,0x40,0x40, 0x40,0x40,0x40,0x7f, /* 0 to 7 */ - 0x40,0x40,0x40,0x7f, 0x40,0x40,0x40,0x40, /* 8 to 15 */ - 0x40,0x40,0x40,0x40, 0x40,0x40,0x40,0x40, /* 16 to 23 */ - 0x40,0x40,0x40,0x40, 0x40,0x40,0x40,0x40, /* 24 to 31 */ - - 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, /* 32 to 39 */ - 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, /* 40 to 47 */ - 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, /* 48 to 55 */ - 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, /* 56 to 63 */ - - 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, /* 64 to 71 */ - 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, /* 72 to 79 */ - 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, /* 80 to 87 */ - 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, /* 88 to 95 */ - - 0x00,0x00,0x7f,0x7f, 0x7f,0x7f,0x00,0x00, /* 96 to 103 */ - 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, /* 104 to 111 */ - 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, /* 112 to 119 */ - 0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00, /* 120 to 127 */ -}; diff --git a/sound/oss/midi_synth.c b/sound/oss/midi_synth.c deleted file mode 100644 index 2292c230d7e6..000000000000 --- a/sound/oss/midi_synth.c +++ /dev/null @@ -1,712 +0,0 @@ -/* - * sound/oss/midi_synth.c - * - * High level midi sequencer manager for dumb MIDI interfaces. - */ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ -/* - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * Andrew Veliath : fixed running status in MIDI input state machine - */ -#define USE_SEQ_MACROS -#define USE_SIMPLE_MACROS - -#include "sound_config.h" - -#define _MIDI_SYNTH_C_ - -#include "midi_synth.h" - -static int midi2synth[MAX_MIDI_DEV]; -static int sysex_state[MAX_MIDI_DEV] = -{0}; -static unsigned char prev_out_status[MAX_MIDI_DEV]; - -#define STORE(cmd) \ -{ \ - int len; \ - unsigned char obuf[8]; \ - cmd; \ - seq_input_event(obuf, len); \ -} - -#define _seqbuf obuf -#define _seqbufptr 0 -#define _SEQ_ADVBUF(x) len=x - -void -do_midi_msg(int synthno, unsigned char *msg, int mlen) -{ - switch (msg[0] & 0xf0) - { - case 0x90: - if (msg[2] != 0) - { - STORE(SEQ_START_NOTE(synthno, msg[0] & 0x0f, msg[1], msg[2])); - break; - } - msg[2] = 64; - - case 0x80: - STORE(SEQ_STOP_NOTE(synthno, msg[0] & 0x0f, msg[1], msg[2])); - break; - - case 0xA0: - STORE(SEQ_KEY_PRESSURE(synthno, msg[0] & 0x0f, msg[1], msg[2])); - break; - - case 0xB0: - STORE(SEQ_CONTROL(synthno, msg[0] & 0x0f, - msg[1], msg[2])); - break; - - case 0xC0: - STORE(SEQ_SET_PATCH(synthno, msg[0] & 0x0f, msg[1])); - break; - - case 0xD0: - STORE(SEQ_CHN_PRESSURE(synthno, msg[0] & 0x0f, msg[1])); - break; - - case 0xE0: - STORE(SEQ_BENDER(synthno, msg[0] & 0x0f, - (msg[1] & 0x7f) | ((msg[2] & 0x7f) << 7))); - break; - - default: - /* printk( "MPU: Unknown midi channel message %02x\n", msg[0]); */ - ; - } -} -EXPORT_SYMBOL(do_midi_msg); - -static void -midi_outc(int midi_dev, int data) -{ - int timeout; - - for (timeout = 0; timeout < 3200; timeout++) - if (midi_devs[midi_dev]->outputc(midi_dev, (unsigned char) (data & 0xff))) - { - if (data & 0x80) /* - * Status byte - */ - prev_out_status[midi_dev] = - (unsigned char) (data & 0xff); /* - * Store for running status - */ - return; /* - * Mission complete - */ - } - /* - * Sorry! No space on buffers. - */ - printk("Midi send timed out\n"); -} - -static int -prefix_cmd(int midi_dev, unsigned char status) -{ - if ((char *) midi_devs[midi_dev]->prefix_cmd == NULL) - return 1; - - return midi_devs[midi_dev]->prefix_cmd(midi_dev, status); -} - -static void -midi_synth_input(int orig_dev, unsigned char data) -{ - int dev; - struct midi_input_info *inc; - - static unsigned char len_tab[] = /* # of data bytes following a status - */ - { - 2, /* 8x */ - 2, /* 9x */ - 2, /* Ax */ - 2, /* Bx */ - 1, /* Cx */ - 1, /* Dx */ - 2, /* Ex */ - 0 /* Fx */ - }; - - if (orig_dev < 0 || orig_dev > num_midis || midi_devs[orig_dev] == NULL) - return; - - if (data == 0xfe) /* Ignore active sensing */ - return; - - dev = midi2synth[orig_dev]; - inc = &midi_devs[orig_dev]->in_info; - - switch (inc->m_state) - { - case MST_INIT: - if (data & 0x80) /* MIDI status byte */ - { - if ((data & 0xf0) == 0xf0) /* Common message */ - { - switch (data) - { - case 0xf0: /* Sysex */ - inc->m_state = MST_SYSEX; - break; /* Sysex */ - - case 0xf1: /* MTC quarter frame */ - case 0xf3: /* Song select */ - inc->m_state = MST_DATA; - inc->m_ptr = 1; - inc->m_left = 1; - inc->m_buf[0] = data; - break; - - case 0xf2: /* Song position pointer */ - inc->m_state = MST_DATA; - inc->m_ptr = 1; - inc->m_left = 2; - inc->m_buf[0] = data; - break; - - default: - inc->m_buf[0] = data; - inc->m_ptr = 1; - do_midi_msg(dev, inc->m_buf, inc->m_ptr); - inc->m_ptr = 0; - inc->m_left = 0; - } - } else - { - inc->m_state = MST_DATA; - inc->m_ptr = 1; - inc->m_left = len_tab[(data >> 4) - 8]; - inc->m_buf[0] = inc->m_prev_status = data; - } - } else if (inc->m_prev_status & 0x80) { - /* Data byte (use running status) */ - inc->m_ptr = 2; - inc->m_buf[1] = data; - inc->m_buf[0] = inc->m_prev_status; - inc->m_left = len_tab[(inc->m_buf[0] >> 4) - 8] - 1; - if (inc->m_left > 0) - inc->m_state = MST_DATA; /* Not done yet */ - else { - inc->m_state = MST_INIT; - do_midi_msg(dev, inc->m_buf, inc->m_ptr); - inc->m_ptr = 0; - } - } - break; /* MST_INIT */ - - case MST_DATA: - inc->m_buf[inc->m_ptr++] = data; - if (--inc->m_left <= 0) - { - inc->m_state = MST_INIT; - do_midi_msg(dev, inc->m_buf, inc->m_ptr); - inc->m_ptr = 0; - } - break; /* MST_DATA */ - - case MST_SYSEX: - if (data == 0xf7) /* Sysex end */ - { - inc->m_state = MST_INIT; - inc->m_left = 0; - inc->m_ptr = 0; - } - break; /* MST_SYSEX */ - - default: - printk("MIDI%d: Unexpected state %d (%02x)\n", orig_dev, inc->m_state, (int) data); - inc->m_state = MST_INIT; - } -} - -static void -leave_sysex(int dev) -{ - int orig_dev = synth_devs[dev]->midi_dev; - int timeout = 0; - - if (!sysex_state[dev]) - return; - - sysex_state[dev] = 0; - - while (!midi_devs[orig_dev]->outputc(orig_dev, 0xf7) && - timeout < 1000) - timeout++; - - sysex_state[dev] = 0; -} - -static void -midi_synth_output(int dev) -{ - /* - * Currently NOP - */ -} - -int midi_synth_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - /* - * int orig_dev = synth_devs[dev]->midi_dev; - */ - - switch (cmd) { - - case SNDCTL_SYNTH_INFO: - if (__copy_to_user(arg, synth_devs[dev]->info, sizeof(struct synth_info))) - return -EFAULT; - return 0; - - case SNDCTL_SYNTH_MEMAVL: - return 0x7fffffff; - - default: - return -EINVAL; - } -} -EXPORT_SYMBOL(midi_synth_ioctl); - -int -midi_synth_kill_note(int dev, int channel, int note, int velocity) -{ - int orig_dev = synth_devs[dev]->midi_dev; - int msg, chn; - - if (note < 0 || note > 127) - return 0; - if (channel < 0 || channel > 15) - return 0; - if (velocity < 0) - velocity = 0; - if (velocity > 127) - velocity = 127; - - leave_sysex(dev); - - msg = prev_out_status[orig_dev] & 0xf0; - chn = prev_out_status[orig_dev] & 0x0f; - - if (chn == channel && ((msg == 0x90 && velocity == 64) || msg == 0x80)) - { /* - * Use running status - */ - if (!prefix_cmd(orig_dev, note)) - return 0; - - midi_outc(orig_dev, note); - - if (msg == 0x90) /* - * Running status = Note on - */ - midi_outc(orig_dev, 0); /* - * Note on with velocity 0 == note - * off - */ - else - midi_outc(orig_dev, velocity); - } else - { - if (velocity == 64) - { - if (!prefix_cmd(orig_dev, 0x90 | (channel & 0x0f))) - return 0; - midi_outc(orig_dev, 0x90 | (channel & 0x0f)); /* - * Note on - */ - midi_outc(orig_dev, note); - midi_outc(orig_dev, 0); /* - * Zero G - */ - } else - { - if (!prefix_cmd(orig_dev, 0x80 | (channel & 0x0f))) - return 0; - midi_outc(orig_dev, 0x80 | (channel & 0x0f)); /* - * Note off - */ - midi_outc(orig_dev, note); - midi_outc(orig_dev, velocity); - } - } - - return 0; -} -EXPORT_SYMBOL(midi_synth_kill_note); - -int -midi_synth_set_instr(int dev, int channel, int instr_no) -{ - int orig_dev = synth_devs[dev]->midi_dev; - - if (instr_no < 0 || instr_no > 127) - instr_no = 0; - if (channel < 0 || channel > 15) - return 0; - - leave_sysex(dev); - - if (!prefix_cmd(orig_dev, 0xc0 | (channel & 0x0f))) - return 0; - midi_outc(orig_dev, 0xc0 | (channel & 0x0f)); /* - * Program change - */ - midi_outc(orig_dev, instr_no); - - return 0; -} -EXPORT_SYMBOL(midi_synth_set_instr); - -int -midi_synth_start_note(int dev, int channel, int note, int velocity) -{ - int orig_dev = synth_devs[dev]->midi_dev; - int msg, chn; - - if (note < 0 || note > 127) - return 0; - if (channel < 0 || channel > 15) - return 0; - if (velocity < 0) - velocity = 0; - if (velocity > 127) - velocity = 127; - - leave_sysex(dev); - - msg = prev_out_status[orig_dev] & 0xf0; - chn = prev_out_status[orig_dev] & 0x0f; - - if (chn == channel && msg == 0x90) - { /* - * Use running status - */ - if (!prefix_cmd(orig_dev, note)) - return 0; - midi_outc(orig_dev, note); - midi_outc(orig_dev, velocity); - } else - { - if (!prefix_cmd(orig_dev, 0x90 | (channel & 0x0f))) - return 0; - midi_outc(orig_dev, 0x90 | (channel & 0x0f)); /* - * Note on - */ - midi_outc(orig_dev, note); - midi_outc(orig_dev, velocity); - } - return 0; -} -EXPORT_SYMBOL(midi_synth_start_note); - -void -midi_synth_reset(int dev) -{ - - leave_sysex(dev); -} -EXPORT_SYMBOL(midi_synth_reset); - -int -midi_synth_open(int dev, int mode) -{ - int orig_dev = synth_devs[dev]->midi_dev; - int err; - struct midi_input_info *inc; - - if (orig_dev < 0 || orig_dev >= num_midis || midi_devs[orig_dev] == NULL) - return -ENXIO; - - midi2synth[orig_dev] = dev; - sysex_state[dev] = 0; - prev_out_status[orig_dev] = 0; - - if ((err = midi_devs[orig_dev]->open(orig_dev, mode, - midi_synth_input, midi_synth_output)) < 0) - return err; - inc = &midi_devs[orig_dev]->in_info; - - /* save_flags(flags); - cli(); - don't know against what irqhandler to protect*/ - inc->m_busy = 0; - inc->m_state = MST_INIT; - inc->m_ptr = 0; - inc->m_left = 0; - inc->m_prev_status = 0x00; - /* restore_flags(flags); */ - - return 1; -} -EXPORT_SYMBOL(midi_synth_open); - -void -midi_synth_close(int dev) -{ - int orig_dev = synth_devs[dev]->midi_dev; - - leave_sysex(dev); - - /* - * Shut up the synths by sending just single active sensing message. - */ - midi_devs[orig_dev]->outputc(orig_dev, 0xfe); - - midi_devs[orig_dev]->close(orig_dev); -} -EXPORT_SYMBOL(midi_synth_close); - -void -midi_synth_hw_control(int dev, unsigned char *event) -{ -} -EXPORT_SYMBOL(midi_synth_hw_control); - -int -midi_synth_load_patch(int dev, int format, const char __user *addr, - int count, int pmgr_flag) -{ - int orig_dev = synth_devs[dev]->midi_dev; - - struct sysex_info sysex; - int i; - unsigned long left, src_offs, eox_seen = 0; - int first_byte = 1; - int hdr_size = (unsigned long) &sysex.data[0] - (unsigned long) &sysex; - - leave_sysex(dev); - - if (!prefix_cmd(orig_dev, 0xf0)) - return 0; - - /* Invalid patch format */ - if (format != SYSEX_PATCH) - return -EINVAL; - - /* Patch header too short */ - if (count < hdr_size) - return -EINVAL; - - count -= hdr_size; - - /* - * Copy the header from user space - */ - - if (copy_from_user(&sysex, addr, hdr_size)) - return -EFAULT; - - /* Sysex record too short */ - if ((unsigned)count < (unsigned)sysex.len) - sysex.len = count; - - left = sysex.len; - src_offs = 0; - - for (i = 0; i < left && !signal_pending(current); i++) - { - unsigned char data; - - if (get_user(data, - (unsigned char __user *)(addr + hdr_size + i))) - return -EFAULT; - - eox_seen = (i > 0 && data & 0x80); /* End of sysex */ - - if (eox_seen && data != 0xf7) - data = 0xf7; - - if (i == 0) - { - if (data != 0xf0) - { - printk(KERN_WARNING "midi_synth: Sysex start missing\n"); - return -EINVAL; - } - } - while (!midi_devs[orig_dev]->outputc(orig_dev, (unsigned char) (data & 0xff)) && - !signal_pending(current)) - schedule(); - - if (!first_byte && data & 0x80) - return 0; - first_byte = 0; - } - - if (!eox_seen) - midi_outc(orig_dev, 0xf7); - return 0; -} -EXPORT_SYMBOL(midi_synth_load_patch); - -void midi_synth_panning(int dev, int channel, int pressure) -{ -} -EXPORT_SYMBOL(midi_synth_panning); - -void midi_synth_aftertouch(int dev, int channel, int pressure) -{ - int orig_dev = synth_devs[dev]->midi_dev; - int msg, chn; - - if (pressure < 0 || pressure > 127) - return; - if (channel < 0 || channel > 15) - return; - - leave_sysex(dev); - - msg = prev_out_status[orig_dev] & 0xf0; - chn = prev_out_status[orig_dev] & 0x0f; - - if (msg != 0xd0 || chn != channel) /* - * Test for running status - */ - { - if (!prefix_cmd(orig_dev, 0xd0 | (channel & 0x0f))) - return; - midi_outc(orig_dev, 0xd0 | (channel & 0x0f)); /* - * Channel pressure - */ - } else if (!prefix_cmd(orig_dev, pressure)) - return; - - midi_outc(orig_dev, pressure); -} -EXPORT_SYMBOL(midi_synth_aftertouch); - -void -midi_synth_controller(int dev, int channel, int ctrl_num, int value) -{ - int orig_dev = synth_devs[dev]->midi_dev; - int chn, msg; - - if (ctrl_num < 0 || ctrl_num > 127) - return; - if (channel < 0 || channel > 15) - return; - - leave_sysex(dev); - - msg = prev_out_status[orig_dev] & 0xf0; - chn = prev_out_status[orig_dev] & 0x0f; - - if (msg != 0xb0 || chn != channel) - { - if (!prefix_cmd(orig_dev, 0xb0 | (channel & 0x0f))) - return; - midi_outc(orig_dev, 0xb0 | (channel & 0x0f)); - } else if (!prefix_cmd(orig_dev, ctrl_num)) - return; - - midi_outc(orig_dev, ctrl_num); - midi_outc(orig_dev, value & 0x7f); -} -EXPORT_SYMBOL(midi_synth_controller); - -void -midi_synth_bender(int dev, int channel, int value) -{ - int orig_dev = synth_devs[dev]->midi_dev; - int msg, prev_chn; - - if (channel < 0 || channel > 15) - return; - - if (value < 0 || value > 16383) - return; - - leave_sysex(dev); - - msg = prev_out_status[orig_dev] & 0xf0; - prev_chn = prev_out_status[orig_dev] & 0x0f; - - if (msg != 0xd0 || prev_chn != channel) /* - * Test for running status - */ - { - if (!prefix_cmd(orig_dev, 0xe0 | (channel & 0x0f))) - return; - midi_outc(orig_dev, 0xe0 | (channel & 0x0f)); - } else if (!prefix_cmd(orig_dev, value & 0x7f)) - return; - - midi_outc(orig_dev, value & 0x7f); - midi_outc(orig_dev, (value >> 7) & 0x7f); -} -EXPORT_SYMBOL(midi_synth_bender); - -void -midi_synth_setup_voice(int dev, int voice, int channel) -{ -} -EXPORT_SYMBOL(midi_synth_setup_voice); - -int -midi_synth_send_sysex(int dev, unsigned char *bytes, int len) -{ - int orig_dev = synth_devs[dev]->midi_dev; - int i; - - for (i = 0; i < len; i++) - { - switch (bytes[i]) - { - case 0xf0: /* Start sysex */ - if (!prefix_cmd(orig_dev, 0xf0)) - return 0; - sysex_state[dev] = 1; - break; - - case 0xf7: /* End sysex */ - if (!sysex_state[dev]) /* Orphan sysex end */ - return 0; - sysex_state[dev] = 0; - break; - - default: - if (!sysex_state[dev]) - return 0; - - if (bytes[i] & 0x80) /* Error. Another message before sysex end */ - { - bytes[i] = 0xf7; /* Sysex end */ - sysex_state[dev] = 0; - } - } - - if (!midi_devs[orig_dev]->outputc(orig_dev, bytes[i])) - { -/* - * Hardware level buffer is full. Abort the sysex message. - */ - - int timeout = 0; - - bytes[i] = 0xf7; - sysex_state[dev] = 0; - - while (!midi_devs[orig_dev]->outputc(orig_dev, bytes[i]) && - timeout < 1000) - timeout++; - } - if (!sysex_state[dev]) - return 0; - } - - return 0; -} -EXPORT_SYMBOL(midi_synth_send_sysex); - diff --git a/sound/oss/midi_synth.h b/sound/oss/midi_synth.h deleted file mode 100644 index b64ddd6c4abc..000000000000 --- a/sound/oss/midi_synth.h +++ /dev/null @@ -1,47 +0,0 @@ -int midi_synth_ioctl (int dev, - unsigned int cmd, void __user * arg); -int midi_synth_kill_note (int dev, int channel, int note, int velocity); -int midi_synth_set_instr (int dev, int channel, int instr_no); -int midi_synth_start_note (int dev, int channel, int note, int volume); -void midi_synth_reset (int dev); -int midi_synth_open (int dev, int mode); -void midi_synth_close (int dev); -void midi_synth_hw_control (int dev, unsigned char *event); -int midi_synth_load_patch (int dev, int format, const char __user * addr, - int count, int pmgr_flag); -void midi_synth_panning (int dev, int channel, int pressure); -void midi_synth_aftertouch (int dev, int channel, int pressure); -void midi_synth_controller (int dev, int channel, int ctrl_num, int value); -void midi_synth_bender (int dev, int chn, int value); -void midi_synth_setup_voice (int dev, int voice, int chn); -int midi_synth_send_sysex(int dev, unsigned char *bytes,int len); - -#ifndef _MIDI_SYNTH_C_ -static struct synth_info std_synth_info = -{MIDI_SYNTH_NAME, 0, SYNTH_TYPE_MIDI, 0, 0, 128, 0, 128, MIDI_SYNTH_CAPS}; - -static struct synth_operations std_midi_synth = -{ - .owner = THIS_MODULE, - .id = "MIDI", - .info = &std_synth_info, - .midi_dev = 0, - .synth_type = SYNTH_TYPE_MIDI, - .synth_subtype = 0, - .open = midi_synth_open, - .close = midi_synth_close, - .ioctl = midi_synth_ioctl, - .kill_note = midi_synth_kill_note, - .start_note = midi_synth_start_note, - .set_instr = midi_synth_set_instr, - .reset = midi_synth_reset, - .hw_control = midi_synth_hw_control, - .load_patch = midi_synth_load_patch, - .aftertouch = midi_synth_aftertouch, - .controller = midi_synth_controller, - .panning = midi_synth_panning, - .bender = midi_synth_bender, - .setup_voice = midi_synth_setup_voice, - .send_sysex = midi_synth_send_sysex -}; -#endif diff --git a/sound/oss/midibuf.c b/sound/oss/midibuf.c deleted file mode 100644 index 701c7625c971..000000000000 --- a/sound/oss/midibuf.c +++ /dev/null @@ -1,427 +0,0 @@ -/* - * sound/oss/midibuf.c - * - * Device file manager for /dev/midi# - */ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ -/* - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - */ -#include -#include -#include -#include - -#define MIDIBUF_C - -#include "sound_config.h" - - -/* - * Don't make MAX_QUEUE_SIZE larger than 4000 - */ - -#define MAX_QUEUE_SIZE 4000 - -static wait_queue_head_t midi_sleeper[MAX_MIDI_DEV]; -static wait_queue_head_t input_sleeper[MAX_MIDI_DEV]; - -struct midi_buf -{ - int len, head, tail; - unsigned char queue[MAX_QUEUE_SIZE]; -}; - -struct midi_parms -{ - long prech_timeout; /* - * Timeout before the first ch - */ -}; - -static struct midi_buf *midi_out_buf[MAX_MIDI_DEV] = {NULL}; -static struct midi_buf *midi_in_buf[MAX_MIDI_DEV] = {NULL}; -static struct midi_parms parms[MAX_MIDI_DEV]; - -static void midi_poll(unsigned long dummy); - - -static DEFINE_TIMER(poll_timer, midi_poll, 0, 0); - -static volatile int open_devs; -static DEFINE_SPINLOCK(lock); - -#define DATA_AVAIL(q) (q->len) -#define SPACE_AVAIL(q) (MAX_QUEUE_SIZE - q->len) - -#define QUEUE_BYTE(q, data) \ - if (SPACE_AVAIL(q)) \ - { \ - unsigned long flags; \ - spin_lock_irqsave(&lock, flags); \ - q->queue[q->tail] = (data); \ - q->len++; q->tail = (q->tail+1) % MAX_QUEUE_SIZE; \ - spin_unlock_irqrestore(&lock, flags); \ - } - -#define REMOVE_BYTE(q, data) \ - if (DATA_AVAIL(q)) \ - { \ - unsigned long flags; \ - spin_lock_irqsave(&lock, flags); \ - data = q->queue[q->head]; \ - q->len--; q->head = (q->head+1) % MAX_QUEUE_SIZE; \ - spin_unlock_irqrestore(&lock, flags); \ - } - -static void drain_midi_queue(int dev) -{ - - /* - * Give the Midi driver time to drain its output queues - */ - - if (midi_devs[dev]->buffer_status != NULL) - wait_event_interruptible_timeout(midi_sleeper[dev], - !midi_devs[dev]->buffer_status(dev), HZ/10); -} - -static void midi_input_intr(int dev, unsigned char data) -{ - if (midi_in_buf[dev] == NULL) - return; - - if (data == 0xfe) /* - * Active sensing - */ - return; /* - * Ignore - */ - - if (SPACE_AVAIL(midi_in_buf[dev])) { - QUEUE_BYTE(midi_in_buf[dev], data); - wake_up(&input_sleeper[dev]); - } -} - -static void midi_output_intr(int dev) -{ - /* - * Currently NOP - */ -} - -static void midi_poll(unsigned long dummy) -{ - unsigned long flags; - int dev; - - spin_lock_irqsave(&lock, flags); - if (open_devs) - { - for (dev = 0; dev < num_midis; dev++) - if (midi_devs[dev] != NULL && midi_out_buf[dev] != NULL) - { - while (DATA_AVAIL(midi_out_buf[dev])) - { - int ok; - int c = midi_out_buf[dev]->queue[midi_out_buf[dev]->head]; - - spin_unlock_irqrestore(&lock,flags);/* Give some time to others */ - ok = midi_devs[dev]->outputc(dev, c); - spin_lock_irqsave(&lock, flags); - if (!ok) - break; - midi_out_buf[dev]->head = (midi_out_buf[dev]->head + 1) % MAX_QUEUE_SIZE; - midi_out_buf[dev]->len--; - } - - if (DATA_AVAIL(midi_out_buf[dev]) < 100) - wake_up(&midi_sleeper[dev]); - } - poll_timer.expires = (1) + jiffies; - add_timer(&poll_timer); - /* - * Come back later - */ - } - spin_unlock_irqrestore(&lock, flags); -} - -int MIDIbuf_open(int dev, struct file *file) -{ - int mode, err; - - dev = dev >> 4; - mode = translate_mode(file); - - if (num_midis > MAX_MIDI_DEV) - { - printk(KERN_ERR "midi: Too many midi interfaces\n"); - num_midis = MAX_MIDI_DEV; - } - if (dev < 0 || dev >= num_midis || midi_devs[dev] == NULL) - return -ENXIO; - /* - * Interrupts disabled. Be careful - */ - - module_put(midi_devs[dev]->owner); - - if ((err = midi_devs[dev]->open(dev, mode, - midi_input_intr, midi_output_intr)) < 0) - return err; - - parms[dev].prech_timeout = MAX_SCHEDULE_TIMEOUT; - midi_in_buf[dev] = vmalloc(sizeof(struct midi_buf)); - - if (midi_in_buf[dev] == NULL) - { - printk(KERN_WARNING "midi: Can't allocate buffer\n"); - midi_devs[dev]->close(dev); - return -EIO; - } - midi_in_buf[dev]->len = midi_in_buf[dev]->head = midi_in_buf[dev]->tail = 0; - - midi_out_buf[dev] = vmalloc(sizeof(struct midi_buf)); - - if (midi_out_buf[dev] == NULL) - { - printk(KERN_WARNING "midi: Can't allocate buffer\n"); - midi_devs[dev]->close(dev); - vfree(midi_in_buf[dev]); - midi_in_buf[dev] = NULL; - return -EIO; - } - midi_out_buf[dev]->len = midi_out_buf[dev]->head = midi_out_buf[dev]->tail = 0; - open_devs++; - - init_waitqueue_head(&midi_sleeper[dev]); - init_waitqueue_head(&input_sleeper[dev]); - - if (open_devs < 2) /* This was first open */ - { - poll_timer.expires = 1 + jiffies; - add_timer(&poll_timer); /* Start polling */ - } - return err; -} - -void MIDIbuf_release(int dev, struct file *file) -{ - int mode; - - dev = dev >> 4; - mode = translate_mode(file); - - if (dev < 0 || dev >= num_midis || midi_devs[dev] == NULL) - return; - - /* - * Wait until the queue is empty - */ - - if (mode != OPEN_READ) - { - midi_devs[dev]->outputc(dev, 0xfe); /* - * Active sensing to shut the - * devices - */ - - wait_event_interruptible(midi_sleeper[dev], - !DATA_AVAIL(midi_out_buf[dev])); - /* - * Sync - */ - - drain_midi_queue(dev); /* - * Ensure the output queues are empty - */ - } - - midi_devs[dev]->close(dev); - - open_devs--; - if (open_devs == 0) - del_timer_sync(&poll_timer); - vfree(midi_in_buf[dev]); - vfree(midi_out_buf[dev]); - midi_in_buf[dev] = NULL; - midi_out_buf[dev] = NULL; - - module_put(midi_devs[dev]->owner); -} - -int MIDIbuf_write(int dev, struct file *file, const char __user *buf, int count) -{ - int c, n, i; - unsigned char tmp_data; - - dev = dev >> 4; - - if (!count) - return 0; - - c = 0; - - while (c < count) - { - n = SPACE_AVAIL(midi_out_buf[dev]); - - if (n == 0) { /* - * No space just now. - */ - - if (file->f_flags & O_NONBLOCK) { - c = -EAGAIN; - goto out; - } - - if (wait_event_interruptible(midi_sleeper[dev], - SPACE_AVAIL(midi_out_buf[dev]))) - { - c = -EINTR; - goto out; - } - n = SPACE_AVAIL(midi_out_buf[dev]); - } - if (n > (count - c)) - n = count - c; - - for (i = 0; i < n; i++) - { - /* BROKE BROKE BROKE - CAN'T DO THIS WITH CLI !! */ - /* yes, think the same, so I removed the cli() brackets - QUEUE_BYTE is protected against interrupts */ - if (copy_from_user((char *) &tmp_data, &(buf)[c], 1)) { - c = -EFAULT; - goto out; - } - QUEUE_BYTE(midi_out_buf[dev], tmp_data); - c++; - } - } -out: - return c; -} - - -int MIDIbuf_read(int dev, struct file *file, char __user *buf, int count) -{ - int n, c = 0; - unsigned char tmp_data; - - dev = dev >> 4; - - if (!DATA_AVAIL(midi_in_buf[dev])) { /* - * No data yet, wait - */ - if (file->f_flags & O_NONBLOCK) { - c = -EAGAIN; - goto out; - } - wait_event_interruptible_timeout(input_sleeper[dev], - DATA_AVAIL(midi_in_buf[dev]), - parms[dev].prech_timeout); - - if (signal_pending(current)) - c = -EINTR; /* The user is getting restless */ - } - if (c == 0 && DATA_AVAIL(midi_in_buf[dev])) /* - * Got some bytes - */ - { - n = DATA_AVAIL(midi_in_buf[dev]); - if (n > count) - n = count; - c = 0; - - while (c < n) - { - char *fixit; - REMOVE_BYTE(midi_in_buf[dev], tmp_data); - fixit = (char *) &tmp_data; - /* BROKE BROKE BROKE */ - /* yes removed the cli() brackets again - should q->len,tail&head be atomic_t? */ - if (copy_to_user(&(buf)[c], fixit, 1)) { - c = -EFAULT; - goto out; - } - c++; - } - } -out: - return c; -} - -int MIDIbuf_ioctl(int dev, struct file *file, - unsigned int cmd, void __user *arg) -{ - int val; - - dev = dev >> 4; - - if (((cmd >> 8) & 0xff) == 'C') - { - if (midi_devs[dev]->coproc) /* Coprocessor ioctl */ - return midi_devs[dev]->coproc->ioctl(midi_devs[dev]->coproc->devc, cmd, arg, 0); -/* printk("/dev/midi%d: No coprocessor for this device\n", dev);*/ - return -ENXIO; - } - else - { - switch (cmd) - { - case SNDCTL_MIDI_PRETIME: - if (get_user(val, (int __user *)arg)) - return -EFAULT; - if (val < 0) - val = 0; - val = (HZ * val) / 10; - parms[dev].prech_timeout = val; - return put_user(val, (int __user *)arg); - - default: - if (!midi_devs[dev]->ioctl) - return -EINVAL; - return midi_devs[dev]->ioctl(dev, cmd, arg); - } - } -} - -/* No kernel lock - fine */ -unsigned int MIDIbuf_poll(int dev, struct file *file, poll_table * wait) -{ - unsigned int mask = 0; - - dev = dev >> 4; - - /* input */ - poll_wait(file, &input_sleeper[dev], wait); - if (DATA_AVAIL(midi_in_buf[dev])) - mask |= POLLIN | POLLRDNORM; - - /* output */ - poll_wait(file, &midi_sleeper[dev], wait); - if (!SPACE_AVAIL(midi_out_buf[dev])) - mask |= POLLOUT | POLLWRNORM; - - return mask; -} - - -int MIDIbuf_avail(int dev) -{ - if (midi_in_buf[dev]) - return DATA_AVAIL (midi_in_buf[dev]); - return 0; -} -EXPORT_SYMBOL(MIDIbuf_avail); - diff --git a/sound/oss/mpu401.c b/sound/oss/mpu401.c deleted file mode 100644 index 20e8fa46f647..000000000000 --- a/sound/oss/mpu401.c +++ /dev/null @@ -1,1804 +0,0 @@ -/* - * sound/oss/mpu401.c - * - * The low level driver for Roland MPU-401 compatible Midi cards. - */ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * Thomas Sailer ioctl code reworked (vmalloc/vfree removed) - * Alan Cox modularisation, use normal request_irq, use dev_id - * Bartlomiej Zolnierkiewicz removed some __init to allow using many drivers - * Chris Rankin Update the module-usage counter for the coprocessor - * Zwane Mwaikambo Changed attach/unload resource freeing - */ - -#include -#include -#include -#include -#include -#define USE_SEQ_MACROS -#define USE_SIMPLE_MACROS - -#include "sound_config.h" - -#include "coproc.h" -#include "mpu401.h" - -static int timer_mode = TMR_INTERNAL, timer_caps = TMR_INTERNAL; - -struct mpu_config -{ - int base; /* - * I/O base - */ - int irq; - int opened; /* - * Open mode - */ - int devno; - int synthno; - int uart_mode; - int initialized; - int mode; -#define MODE_MIDI 1 -#define MODE_SYNTH 2 - unsigned char version, revision; - unsigned int capabilities; -#define MPU_CAP_INTLG 0x10000000 -#define MPU_CAP_SYNC 0x00000010 -#define MPU_CAP_FSK 0x00000020 -#define MPU_CAP_CLS 0x00000040 -#define MPU_CAP_SMPTE 0x00000080 -#define MPU_CAP_2PORT 0x00000001 - int timer_flag; - -#define MBUF_MAX 10 -#define BUFTEST(dc) if (dc->m_ptr >= MBUF_MAX || dc->m_ptr < 0) \ - {printk( "MPU: Invalid buffer pointer %d/%d, s=%d\n", dc->m_ptr, dc->m_left, dc->m_state);dc->m_ptr--;} - int m_busy; - unsigned char m_buf[MBUF_MAX]; - int m_ptr; - int m_state; - int m_left; - unsigned char last_status; - void (*inputintr) (int dev, unsigned char data); - int shared_irq; - int *osp; - spinlock_t lock; - }; - -#define DATAPORT(base) (base) -#define COMDPORT(base) (base+1) -#define STATPORT(base) (base+1) - - -static void mpu401_close(int dev); - -static inline int mpu401_status(struct mpu_config *devc) -{ - return inb(STATPORT(devc->base)); -} - -#define input_avail(devc) (!(mpu401_status(devc)&INPUT_AVAIL)) -#define output_ready(devc) (!(mpu401_status(devc)&OUTPUT_READY)) - -static inline void write_command(struct mpu_config *devc, unsigned char cmd) -{ - outb(cmd, COMDPORT(devc->base)); -} - -static inline int read_data(struct mpu_config *devc) -{ - return inb(DATAPORT(devc->base)); -} - -static inline void write_data(struct mpu_config *devc, unsigned char byte) -{ - outb(byte, DATAPORT(devc->base)); -} - -#define OUTPUT_READY 0x40 -#define INPUT_AVAIL 0x80 -#define MPU_ACK 0xFE -#define MPU_RESET 0xFF -#define UART_MODE_ON 0x3F - -static struct mpu_config dev_conf[MAX_MIDI_DEV]; - -static int n_mpu_devs; - -static int reset_mpu401(struct mpu_config *devc); -static void set_uart_mode(int dev, struct mpu_config *devc, int arg); - -static int mpu_timer_init(int midi_dev); -static void mpu_timer_interrupt(void); -static void timer_ext_event(struct mpu_config *devc, int event, int parm); - -static struct synth_info mpu_synth_info_proto = { - "MPU-401 MIDI interface", - 0, - SYNTH_TYPE_MIDI, - MIDI_TYPE_MPU401, - 0, 128, - 0, 128, - SYNTH_CAP_INPUT -}; - -static struct synth_info mpu_synth_info[MAX_MIDI_DEV]; - -/* - * States for the input scanner - */ - -#define ST_INIT 0 /* Ready for timing byte or msg */ -#define ST_TIMED 1 /* Leading timing byte rcvd */ -#define ST_DATABYTE 2 /* Waiting for (nr_left) data bytes */ - -#define ST_SYSMSG 100 /* System message (sysx etc). */ -#define ST_SYSEX 101 /* System exclusive msg */ -#define ST_MTC 102 /* Midi Time Code (MTC) qframe msg */ -#define ST_SONGSEL 103 /* Song select */ -#define ST_SONGPOS 104 /* Song position pointer */ - -static unsigned char len_tab[] = /* # of data bytes following a status - */ -{ - 2, /* 8x */ - 2, /* 9x */ - 2, /* Ax */ - 2, /* Bx */ - 1, /* Cx */ - 1, /* Dx */ - 2, /* Ex */ - 0 /* Fx */ -}; - -#define STORE(cmd) \ -{ \ - int len; \ - unsigned char obuf[8]; \ - cmd; \ - seq_input_event(obuf, len); \ -} - -#define _seqbuf obuf -#define _seqbufptr 0 -#define _SEQ_ADVBUF(x) len=x - -static int mpu_input_scanner(struct mpu_config *devc, unsigned char midic) -{ - - switch (devc->m_state) - { - case ST_INIT: - switch (midic) - { - case 0xf8: - /* Timer overflow */ - break; - - case 0xfc: - printk(""); - break; - - case 0xfd: - if (devc->timer_flag) - mpu_timer_interrupt(); - break; - - case 0xfe: - return MPU_ACK; - - case 0xf0: - case 0xf1: - case 0xf2: - case 0xf3: - case 0xf4: - case 0xf5: - case 0xf6: - case 0xf7: - printk("", midic & 0x0f); - break; - - case 0xf9: - printk(""); - break; - - case 0xff: - devc->m_state = ST_SYSMSG; - break; - - default: - if (midic <= 0xef) - { - /* printk( "mpu time: %d ", midic); */ - devc->m_state = ST_TIMED; - } - else - printk(" ", midic); - } - break; - - case ST_TIMED: - { - int msg = ((int) (midic & 0xf0) >> 4); - - devc->m_state = ST_DATABYTE; - - if (msg < 8) /* Data byte */ - { - /* printk( "midi msg (running status) "); */ - msg = ((int) (devc->last_status & 0xf0) >> 4); - msg -= 8; - devc->m_left = len_tab[msg] - 1; - - devc->m_ptr = 2; - devc->m_buf[0] = devc->last_status; - devc->m_buf[1] = midic; - - if (devc->m_left <= 0) - { - devc->m_state = ST_INIT; - do_midi_msg(devc->synthno, devc->m_buf, devc->m_ptr); - devc->m_ptr = 0; - } - } - else if (msg == 0xf) /* MPU MARK */ - { - devc->m_state = ST_INIT; - - switch (midic) - { - case 0xf8: - /* printk( "NOP "); */ - break; - - case 0xf9: - /* printk( "meas end "); */ - break; - - case 0xfc: - /* printk( "data end "); */ - break; - - default: - printk("Unknown MPU mark %02x\n", midic); - } - } - else - { - devc->last_status = midic; - /* printk( "midi msg "); */ - msg -= 8; - devc->m_left = len_tab[msg]; - - devc->m_ptr = 1; - devc->m_buf[0] = midic; - - if (devc->m_left <= 0) - { - devc->m_state = ST_INIT; - do_midi_msg(devc->synthno, devc->m_buf, devc->m_ptr); - devc->m_ptr = 0; - } - } - } - break; - - case ST_SYSMSG: - switch (midic) - { - case 0xf0: - printk(""); - devc->m_state = ST_SYSEX; - break; - - case 0xf1: - devc->m_state = ST_MTC; - break; - - case 0xf2: - devc->m_state = ST_SONGPOS; - devc->m_ptr = 0; - break; - - case 0xf3: - devc->m_state = ST_SONGSEL; - break; - - case 0xf6: - /* printk( "tune_request\n"); */ - devc->m_state = ST_INIT; - break; - - /* - * Real time messages - */ - case 0xf8: - /* midi clock */ - devc->m_state = ST_INIT; - timer_ext_event(devc, TMR_CLOCK, 0); - break; - - case 0xfA: - devc->m_state = ST_INIT; - timer_ext_event(devc, TMR_START, 0); - break; - - case 0xFB: - devc->m_state = ST_INIT; - timer_ext_event(devc, TMR_CONTINUE, 0); - break; - - case 0xFC: - devc->m_state = ST_INIT; - timer_ext_event(devc, TMR_STOP, 0); - break; - - case 0xFE: - /* active sensing */ - devc->m_state = ST_INIT; - break; - - case 0xff: - /* printk( "midi hard reset"); */ - devc->m_state = ST_INIT; - break; - - default: - printk("unknown MIDI sysmsg %0x\n", midic); - devc->m_state = ST_INIT; - } - break; - - case ST_MTC: - devc->m_state = ST_INIT; - printk("MTC frame %x02\n", midic); - break; - - case ST_SYSEX: - if (midic == 0xf7) - { - printk(""); - devc->m_state = ST_INIT; - } - else - printk("%02x ", midic); - break; - - case ST_SONGPOS: - BUFTEST(devc); - devc->m_buf[devc->m_ptr++] = midic; - if (devc->m_ptr == 2) - { - devc->m_state = ST_INIT; - devc->m_ptr = 0; - timer_ext_event(devc, TMR_SPP, - ((devc->m_buf[1] & 0x7f) << 7) | - (devc->m_buf[0] & 0x7f)); - } - break; - - case ST_DATABYTE: - BUFTEST(devc); - devc->m_buf[devc->m_ptr++] = midic; - if ((--devc->m_left) <= 0) - { - devc->m_state = ST_INIT; - do_midi_msg(devc->synthno, devc->m_buf, devc->m_ptr); - devc->m_ptr = 0; - } - break; - - default: - printk("Bad state %d ", devc->m_state); - devc->m_state = ST_INIT; - } - return 1; -} - -static void mpu401_input_loop(struct mpu_config *devc) -{ - unsigned long flags; - int busy; - int n; - - spin_lock_irqsave(&devc->lock,flags); - busy = devc->m_busy; - devc->m_busy = 1; - spin_unlock_irqrestore(&devc->lock,flags); - - if (busy) /* Already inside the scanner */ - return; - - n = 50; - - while (input_avail(devc) && n-- > 0) - { - unsigned char c = read_data(devc); - - if (devc->mode == MODE_SYNTH) - { - mpu_input_scanner(devc, c); - } - else if (devc->opened & OPEN_READ && devc->inputintr != NULL) - devc->inputintr(devc->devno, c); - } - devc->m_busy = 0; -} - -static irqreturn_t mpuintr(int irq, void *dev_id) -{ - struct mpu_config *devc; - int dev = (int)(unsigned long) dev_id; - int handled = 0; - - devc = &dev_conf[dev]; - - if (input_avail(devc)) - { - handled = 1; - if (devc->base != 0 && (devc->opened & OPEN_READ || devc->mode == MODE_SYNTH)) - mpu401_input_loop(devc); - else - { - /* Dummy read (just to acknowledge the interrupt) */ - read_data(devc); - } - } - return IRQ_RETVAL(handled); -} - -static int mpu401_open(int dev, int mode, - void (*input) (int dev, unsigned char data), - void (*output) (int dev) -) -{ - int err; - struct mpu_config *devc; - struct coproc_operations *coprocessor; - - if (dev < 0 || dev >= num_midis || midi_devs[dev] == NULL) - return -ENXIO; - - devc = &dev_conf[dev]; - - if (devc->opened) - return -EBUSY; - /* - * Verify that the device is really running. - * Some devices (such as Ensoniq SoundScape don't - * work before the on board processor (OBP) is initialized - * by downloading its microcode. - */ - - if (!devc->initialized) - { - if (mpu401_status(devc) == 0xff) /* Bus float */ - { - printk(KERN_ERR "mpu401: Device not initialized properly\n"); - return -EIO; - } - reset_mpu401(devc); - } - - if ( (coprocessor = midi_devs[dev]->coproc) != NULL ) - { - if (!try_module_get(coprocessor->owner)) { - mpu401_close(dev); - return -ENODEV; - } - - if ((err = coprocessor->open(coprocessor->devc, COPR_MIDI)) < 0) - { - printk(KERN_WARNING "MPU-401: Can't access coprocessor device\n"); - mpu401_close(dev); - return err; - } - } - - set_uart_mode(dev, devc, 1); - devc->mode = MODE_MIDI; - devc->synthno = 0; - - mpu401_input_loop(devc); - - devc->inputintr = input; - devc->opened = mode; - - return 0; -} - -static void mpu401_close(int dev) -{ - struct mpu_config *devc; - struct coproc_operations *coprocessor; - - devc = &dev_conf[dev]; - if (devc->uart_mode) - reset_mpu401(devc); /* - * This disables the UART mode - */ - devc->mode = 0; - devc->inputintr = NULL; - - coprocessor = midi_devs[dev]->coproc; - if (coprocessor) { - coprocessor->close(coprocessor->devc, COPR_MIDI); - module_put(coprocessor->owner); - } - devc->opened = 0; -} - -static int mpu401_out(int dev, unsigned char midi_byte) -{ - int timeout; - unsigned long flags; - - struct mpu_config *devc; - - devc = &dev_conf[dev]; - - /* - * Sometimes it takes about 30000 loops before the output becomes ready - * (After reset). Normally it takes just about 10 loops. - */ - - for (timeout = 30000; timeout > 0 && !output_ready(devc); timeout--); - - spin_lock_irqsave(&devc->lock,flags); - if (!output_ready(devc)) - { - printk(KERN_WARNING "mpu401: Send data timeout\n"); - spin_unlock_irqrestore(&devc->lock,flags); - return 0; - } - write_data(devc, midi_byte); - spin_unlock_irqrestore(&devc->lock,flags); - return 1; -} - -static int mpu401_command(int dev, mpu_command_rec * cmd) -{ - int i, timeout, ok; - unsigned long flags; - struct mpu_config *devc; - - devc = &dev_conf[dev]; - - if (devc->uart_mode) /* - * Not possible in UART mode - */ - { - printk(KERN_WARNING "mpu401: commands not possible in the UART mode\n"); - return -EINVAL; - } - /* - * Test for input since pending input seems to block the output. - */ - if (input_avail(devc)) - mpu401_input_loop(devc); - - /* - * Sometimes it takes about 50000 loops before the output becomes ready - * (After reset). Normally it takes just about 10 loops. - */ - - timeout = 50000; -retry: - if (timeout-- <= 0) - { - printk(KERN_WARNING "mpu401: Command (0x%x) timeout\n", (int) cmd->cmd); - return -EIO; - } - spin_lock_irqsave(&devc->lock,flags); - - if (!output_ready(devc)) - { - spin_unlock_irqrestore(&devc->lock,flags); - goto retry; - } - write_command(devc, cmd->cmd); - - ok = 0; - for (timeout = 50000; timeout > 0 && !ok; timeout--) - { - if (input_avail(devc)) - { - if (devc->opened && devc->mode == MODE_SYNTH) - { - if (mpu_input_scanner(devc, read_data(devc)) == MPU_ACK) - ok = 1; - } - else - { - /* Device is not currently open. Use simpler method */ - if (read_data(devc) == MPU_ACK) - ok = 1; - } - } - } - if (!ok) - { - spin_unlock_irqrestore(&devc->lock,flags); - return -EIO; - } - if (cmd->nr_args) - { - for (i = 0; i < cmd->nr_args; i++) - { - for (timeout = 3000; timeout > 0 && !output_ready(devc); timeout--); - - if (!mpu401_out(dev, cmd->data[i])) - { - spin_unlock_irqrestore(&devc->lock,flags); - printk(KERN_WARNING "mpu401: Command (0x%x), parm send failed.\n", (int) cmd->cmd); - return -EIO; - } - } - } - cmd->data[0] = 0; - - if (cmd->nr_returns) - { - for (i = 0; i < cmd->nr_returns; i++) - { - ok = 0; - for (timeout = 5000; timeout > 0 && !ok; timeout--) - if (input_avail(devc)) - { - cmd->data[i] = read_data(devc); - ok = 1; - } - if (!ok) - { - spin_unlock_irqrestore(&devc->lock,flags); - return -EIO; - } - } - } - spin_unlock_irqrestore(&devc->lock,flags); - return 0; -} - -static int mpu_cmd(int dev, int cmd, int data) -{ - int ret; - - static mpu_command_rec rec; - - rec.cmd = cmd & 0xff; - rec.nr_args = ((cmd & 0xf0) == 0xE0); - rec.nr_returns = ((cmd & 0xf0) == 0xA0); - rec.data[0] = data & 0xff; - - if ((ret = mpu401_command(dev, &rec)) < 0) - return ret; - return (unsigned char) rec.data[0]; -} - -static int mpu401_prefix_cmd(int dev, unsigned char status) -{ - struct mpu_config *devc = &dev_conf[dev]; - - if (devc->uart_mode) - return 1; - - if (status < 0xf0) - { - if (mpu_cmd(dev, 0xD0, 0) < 0) - return 0; - return 1; - } - switch (status) - { - case 0xF0: - if (mpu_cmd(dev, 0xDF, 0) < 0) - return 0; - return 1; - - default: - return 0; - } -} - -static int mpu401_start_read(int dev) -{ - return 0; -} - -static int mpu401_end_read(int dev) -{ - return 0; -} - -static int mpu401_ioctl(int dev, unsigned cmd, void __user *arg) -{ - struct mpu_config *devc; - mpu_command_rec rec; - int val, ret; - - devc = &dev_conf[dev]; - switch (cmd) - { - case SNDCTL_MIDI_MPUMODE: - if (!(devc->capabilities & MPU_CAP_INTLG)) { /* No intelligent mode */ - printk(KERN_WARNING "mpu401: Intelligent mode not supported by the HW\n"); - return -EINVAL; - } - if (get_user(val, (int __user *)arg)) - return -EFAULT; - set_uart_mode(dev, devc, !val); - return 0; - - case SNDCTL_MIDI_MPUCMD: - if (copy_from_user(&rec, arg, sizeof(rec))) - return -EFAULT; - if ((ret = mpu401_command(dev, &rec)) < 0) - return ret; - if (copy_to_user(arg, &rec, sizeof(rec))) - return -EFAULT; - return 0; - - default: - return -EINVAL; - } -} - -static void mpu401_kick(int dev) -{ -} - -static int mpu401_buffer_status(int dev) -{ - return 0; /* - * No data in buffers - */ -} - -static int mpu_synth_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - int midi_dev; - struct mpu_config *devc; - - midi_dev = synth_devs[dev]->midi_dev; - - if (midi_dev < 0 || midi_dev >= num_midis || midi_devs[midi_dev] == NULL) - return -ENXIO; - - devc = &dev_conf[midi_dev]; - - switch (cmd) - { - - case SNDCTL_SYNTH_INFO: - if (copy_to_user(arg, &mpu_synth_info[midi_dev], - sizeof(struct synth_info))) - return -EFAULT; - return 0; - - case SNDCTL_SYNTH_MEMAVL: - return 0x7fffffff; - - default: - return -EINVAL; - } -} - -static int mpu_synth_open(int dev, int mode) -{ - int midi_dev, err; - struct mpu_config *devc; - struct coproc_operations *coprocessor; - - midi_dev = synth_devs[dev]->midi_dev; - - if (midi_dev < 0 || midi_dev > num_midis || midi_devs[midi_dev] == NULL) - return -ENXIO; - - devc = &dev_conf[midi_dev]; - - /* - * Verify that the device is really running. - * Some devices (such as Ensoniq SoundScape don't - * work before the on board processor (OBP) is initialized - * by downloading its microcode. - */ - - if (!devc->initialized) - { - if (mpu401_status(devc) == 0xff) /* Bus float */ - { - printk(KERN_ERR "mpu401: Device not initialized properly\n"); - return -EIO; - } - reset_mpu401(devc); - } - if (devc->opened) - return -EBUSY; - devc->mode = MODE_SYNTH; - devc->synthno = dev; - - devc->inputintr = NULL; - - coprocessor = midi_devs[midi_dev]->coproc; - if (coprocessor) { - if (!try_module_get(coprocessor->owner)) - return -ENODEV; - - if ((err = coprocessor->open(coprocessor->devc, COPR_MIDI)) < 0) - { - printk(KERN_WARNING "mpu401: Can't access coprocessor device\n"); - return err; - } - } - devc->opened = mode; - reset_mpu401(devc); - - if (mode & OPEN_READ) - { - mpu_cmd(midi_dev, 0x8B, 0); /* Enable data in stop mode */ - mpu_cmd(midi_dev, 0x34, 0); /* Return timing bytes in stop mode */ - mpu_cmd(midi_dev, 0x87, 0); /* Enable pitch & controller */ - } - return 0; -} - -static void mpu_synth_close(int dev) -{ - int midi_dev; - struct mpu_config *devc; - struct coproc_operations *coprocessor; - - midi_dev = synth_devs[dev]->midi_dev; - - devc = &dev_conf[midi_dev]; - mpu_cmd(midi_dev, 0x15, 0); /* Stop recording, playback and MIDI */ - mpu_cmd(midi_dev, 0x8a, 0); /* Disable data in stopped mode */ - - devc->inputintr = NULL; - - coprocessor = midi_devs[midi_dev]->coproc; - if (coprocessor) { - coprocessor->close(coprocessor->devc, COPR_MIDI); - module_put(coprocessor->owner); - } - devc->opened = 0; - devc->mode = 0; -} - -#define MIDI_SYNTH_NAME "MPU-401 UART Midi" -#define MIDI_SYNTH_CAPS SYNTH_CAP_INPUT -#include "midi_synth.h" - -static struct synth_operations mpu401_synth_proto = -{ - .owner = THIS_MODULE, - .id = "MPU401", - .info = NULL, - .midi_dev = 0, - .synth_type = SYNTH_TYPE_MIDI, - .synth_subtype = 0, - .open = mpu_synth_open, - .close = mpu_synth_close, - .ioctl = mpu_synth_ioctl, - .kill_note = midi_synth_kill_note, - .start_note = midi_synth_start_note, - .set_instr = midi_synth_set_instr, - .reset = midi_synth_reset, - .hw_control = midi_synth_hw_control, - .load_patch = midi_synth_load_patch, - .aftertouch = midi_synth_aftertouch, - .controller = midi_synth_controller, - .panning = midi_synth_panning, - .bender = midi_synth_bender, - .setup_voice = midi_synth_setup_voice, - .send_sysex = midi_synth_send_sysex -}; - -static struct synth_operations *mpu401_synth_operations[MAX_MIDI_DEV]; - -static struct midi_operations mpu401_midi_proto = -{ - .owner = THIS_MODULE, - .info = {"MPU-401 Midi", 0, MIDI_CAP_MPU401, SNDCARD_MPU401}, - .in_info = {0}, - .open = mpu401_open, - .close = mpu401_close, - .ioctl = mpu401_ioctl, - .outputc = mpu401_out, - .start_read = mpu401_start_read, - .end_read = mpu401_end_read, - .kick = mpu401_kick, - .buffer_status = mpu401_buffer_status, - .prefix_cmd = mpu401_prefix_cmd -}; - -static struct midi_operations mpu401_midi_operations[MAX_MIDI_DEV]; - -static void mpu401_chk_version(int n, struct mpu_config *devc) -{ - int tmp; - - devc->version = devc->revision = 0; - - tmp = mpu_cmd(n, 0xAC, 0); - if (tmp < 0) - return; - if ((tmp & 0xf0) > 0x20) /* Why it's larger than 2.x ??? */ - return; - devc->version = tmp; - - if ((tmp = mpu_cmd(n, 0xAD, 0)) < 0) { - devc->version = 0; - return; - } - devc->revision = tmp; -} - -int attach_mpu401(struct address_info *hw_config, struct module *owner) -{ - unsigned long flags; - char revision_char; - - int m, ret; - struct mpu_config *devc; - - hw_config->slots[1] = -1; - m = sound_alloc_mididev(); - if (m == -1) - { - printk(KERN_WARNING "MPU-401: Too many midi devices detected\n"); - ret = -ENOMEM; - goto out_err; - } - devc = &dev_conf[m]; - devc->base = hw_config->io_base; - devc->osp = hw_config->osp; - devc->irq = hw_config->irq; - devc->opened = 0; - devc->uart_mode = 0; - devc->initialized = 0; - devc->version = 0; - devc->revision = 0; - devc->capabilities = 0; - devc->timer_flag = 0; - devc->m_busy = 0; - devc->m_state = ST_INIT; - devc->shared_irq = hw_config->always_detect; - spin_lock_init(&devc->lock); - - if (devc->irq < 0) - { - devc->irq *= -1; - devc->shared_irq = 1; - } - - if (!hw_config->always_detect) - { - /* Verify the hardware again */ - if (!reset_mpu401(devc)) - { - printk(KERN_WARNING "mpu401: Device didn't respond\n"); - ret = -ENODEV; - goto out_mididev; - } - if (!devc->shared_irq) - { - if (request_irq(devc->irq, mpuintr, 0, "mpu401", - hw_config) < 0) - { - printk(KERN_WARNING "mpu401: Failed to allocate IRQ%d\n", devc->irq); - ret = -ENOMEM; - goto out_mididev; - } - } - spin_lock_irqsave(&devc->lock,flags); - mpu401_chk_version(m, devc); - if (devc->version == 0) - mpu401_chk_version(m, devc); - spin_unlock_irqrestore(&devc->lock, flags); - } - - if (devc->version != 0) - if (mpu_cmd(m, 0xC5, 0) >= 0) /* Set timebase OK */ - if (mpu_cmd(m, 0xE0, 120) >= 0) /* Set tempo OK */ - devc->capabilities |= MPU_CAP_INTLG; /* Supports intelligent mode */ - - - mpu401_synth_operations[m] = kmalloc(sizeof(struct synth_operations), GFP_KERNEL); - - if (mpu401_synth_operations[m] == NULL) - { - printk(KERN_ERR "mpu401: Can't allocate memory\n"); - ret = -ENOMEM; - goto out_irq; - } - if (!(devc->capabilities & MPU_CAP_INTLG)) /* No intelligent mode */ - { - memcpy((char *) mpu401_synth_operations[m], - (char *) &std_midi_synth, - sizeof(struct synth_operations)); - } - else - { - memcpy((char *) mpu401_synth_operations[m], - (char *) &mpu401_synth_proto, - sizeof(struct synth_operations)); - } - if (owner) - mpu401_synth_operations[m]->owner = owner; - - memcpy((char *) &mpu401_midi_operations[m], - (char *) &mpu401_midi_proto, - sizeof(struct midi_operations)); - - mpu401_midi_operations[m].converter = mpu401_synth_operations[m]; - - memcpy((char *) &mpu_synth_info[m], - (char *) &mpu_synth_info_proto, - sizeof(struct synth_info)); - - n_mpu_devs++; - - if (devc->version == 0x20 && devc->revision >= 0x07) /* MusicQuest interface */ - { - int ports = (devc->revision & 0x08) ? 32 : 16; - - devc->capabilities |= MPU_CAP_SYNC | MPU_CAP_SMPTE | - MPU_CAP_CLS | MPU_CAP_2PORT; - - revision_char = (devc->revision == 0x7f) ? 'M' : ' '; - sprintf(mpu_synth_info[m].name, "MQX-%d%c MIDI Interface #%d", - ports, - revision_char, - n_mpu_devs); - } - else - { - revision_char = devc->revision ? devc->revision + '@' : ' '; - if ((int) devc->revision > ('Z' - '@')) - revision_char = '+'; - - devc->capabilities |= MPU_CAP_SYNC | MPU_CAP_FSK; - - if (hw_config->name) - sprintf(mpu_synth_info[m].name, "%s (MPU401)", hw_config->name); - else - sprintf(mpu_synth_info[m].name, - "MPU-401 %d.%d%c MIDI #%d", - (int) (devc->version & 0xf0) >> 4, - devc->version & 0x0f, - revision_char, - n_mpu_devs); - } - - strcpy(mpu401_midi_operations[m].info.name, - mpu_synth_info[m].name); - - conf_printf(mpu_synth_info[m].name, hw_config); - - mpu401_synth_operations[m]->midi_dev = devc->devno = m; - mpu401_synth_operations[devc->devno]->info = &mpu_synth_info[devc->devno]; - - if (devc->capabilities & MPU_CAP_INTLG) /* Intelligent mode */ - hw_config->slots[2] = mpu_timer_init(m); - - midi_devs[m] = &mpu401_midi_operations[devc->devno]; - - if (owner) - midi_devs[m]->owner = owner; - - hw_config->slots[1] = m; - sequencer_init(); - - return 0; - -out_irq: - free_irq(devc->irq, hw_config); -out_mididev: - sound_unload_mididev(m); -out_err: - release_region(hw_config->io_base, 2); - return ret; -} - -static int reset_mpu401(struct mpu_config *devc) -{ - unsigned long flags; - int ok, timeout, n; - int timeout_limit; - - /* - * Send the RESET command. Try again if no success at the first time. - * (If the device is in the UART mode, it will not ack the reset cmd). - */ - - ok = 0; - - timeout_limit = devc->initialized ? 30000 : 100000; - devc->initialized = 1; - - for (n = 0; n < 2 && !ok; n++) - { - for (timeout = timeout_limit; timeout > 0 && !ok; timeout--) - ok = output_ready(devc); - - write_command(devc, MPU_RESET); /* - * Send MPU-401 RESET Command - */ - - /* - * Wait at least 25 msec. This method is not accurate so let's make the - * loop bit longer. Cannot sleep since this is called during boot. - */ - - for (timeout = timeout_limit * 2; timeout > 0 && !ok; timeout--) - { - spin_lock_irqsave(&devc->lock,flags); - if (input_avail(devc)) - if (read_data(devc) == MPU_ACK) - ok = 1; - spin_unlock_irqrestore(&devc->lock,flags); - } - - } - - devc->m_state = ST_INIT; - devc->m_ptr = 0; - devc->m_left = 0; - devc->last_status = 0; - devc->uart_mode = 0; - - return ok; -} - -static void set_uart_mode(int dev, struct mpu_config *devc, int arg) -{ - if (!arg && (devc->capabilities & MPU_CAP_INTLG)) - return; - if ((devc->uart_mode == 0) == (arg == 0)) - return; /* Already set */ - reset_mpu401(devc); /* This exits the uart mode */ - - if (arg) - { - if (mpu_cmd(dev, UART_MODE_ON, 0) < 0) - { - printk(KERN_ERR "mpu401: Can't enter UART mode\n"); - devc->uart_mode = 0; - return; - } - } - devc->uart_mode = arg; - -} - -int probe_mpu401(struct address_info *hw_config, struct resource *ports) -{ - int ok = 0; - struct mpu_config tmp_devc; - - tmp_devc.base = hw_config->io_base; - tmp_devc.irq = hw_config->irq; - tmp_devc.initialized = 0; - tmp_devc.opened = 0; - tmp_devc.osp = hw_config->osp; - - if (hw_config->always_detect) - return 1; - - if (inb(hw_config->io_base + 1) == 0xff) - { - DDB(printk("MPU401: Port %x looks dead.\n", hw_config->io_base)); - return 0; /* Just bus float? */ - } - ok = reset_mpu401(&tmp_devc); - - if (!ok) - { - DDB(printk("MPU401: Reset failed on port %x\n", hw_config->io_base)); - } - return ok; -} - -void unload_mpu401(struct address_info *hw_config) -{ - void *p; - int n=hw_config->slots[1]; - - if (n != -1) { - release_region(hw_config->io_base, 2); - if (hw_config->always_detect == 0 && hw_config->irq > 0) - free_irq(hw_config->irq, hw_config); - p=mpu401_synth_operations[n]; - sound_unload_mididev(n); - sound_unload_timerdev(hw_config->slots[2]); - kfree(p); - } -} - -/***************************************************** - * Timer stuff - ****************************************************/ - -static volatile int timer_initialized = 0, timer_open = 0, tmr_running = 0; -static volatile int curr_tempo, curr_timebase, hw_timebase; -static int max_timebase = 8; /* 8*24=192 ppqn */ -static volatile unsigned long next_event_time; -static volatile unsigned long curr_ticks, curr_clocks; -static unsigned long prev_event_time; -static int metronome_mode; - -static unsigned long clocks2ticks(unsigned long clocks) -{ - /* - * The MPU-401 supports just a limited set of possible timebase values. - * Since the applications require more choices, the driver has to - * program the HW to do its best and to convert between the HW and - * actual timebases. - */ - return ((clocks * curr_timebase) + (hw_timebase / 2)) / hw_timebase; -} - -static void set_timebase(int midi_dev, int val) -{ - int hw_val; - - if (val < 48) - val = 48; - if (val > 1000) - val = 1000; - - hw_val = val; - hw_val = (hw_val + 12) / 24; - if (hw_val > max_timebase) - hw_val = max_timebase; - - if (mpu_cmd(midi_dev, 0xC0 | (hw_val & 0x0f), 0) < 0) - { - printk(KERN_WARNING "mpu401: Can't set HW timebase to %d\n", hw_val * 24); - return; - } - hw_timebase = hw_val * 24; - curr_timebase = val; - -} - -static void tmr_reset(struct mpu_config *devc) -{ - unsigned long flags; - - spin_lock_irqsave(&devc->lock,flags); - next_event_time = (unsigned long) -1; - prev_event_time = 0; - curr_ticks = curr_clocks = 0; - spin_unlock_irqrestore(&devc->lock,flags); -} - -static void set_timer_mode(int midi_dev) -{ - if (timer_mode & TMR_MODE_CLS) - mpu_cmd(midi_dev, 0x3c, 0); /* Use CLS sync */ - else if (timer_mode & TMR_MODE_SMPTE) - mpu_cmd(midi_dev, 0x3d, 0); /* Use SMPTE sync */ - - if (timer_mode & TMR_INTERNAL) - { - mpu_cmd(midi_dev, 0x80, 0); /* Use MIDI sync */ - } - else - { - if (timer_mode & (TMR_MODE_MIDI | TMR_MODE_CLS)) - { - mpu_cmd(midi_dev, 0x82, 0); /* Use MIDI sync */ - mpu_cmd(midi_dev, 0x91, 0); /* Enable ext MIDI ctrl */ - } - else if (timer_mode & TMR_MODE_FSK) - mpu_cmd(midi_dev, 0x81, 0); /* Use FSK sync */ - } -} - -static void stop_metronome(int midi_dev) -{ - mpu_cmd(midi_dev, 0x84, 0); /* Disable metronome */ -} - -static void setup_metronome(int midi_dev) -{ - int numerator, denominator; - int clks_per_click, num_32nds_per_beat; - int beats_per_measure; - - numerator = ((unsigned) metronome_mode >> 24) & 0xff; - denominator = ((unsigned) metronome_mode >> 16) & 0xff; - clks_per_click = ((unsigned) metronome_mode >> 8) & 0xff; - num_32nds_per_beat = (unsigned) metronome_mode & 0xff; - beats_per_measure = (numerator * 4) >> denominator; - - if (!metronome_mode) - mpu_cmd(midi_dev, 0x84, 0); /* Disable metronome */ - else - { - mpu_cmd(midi_dev, 0xE4, clks_per_click); - mpu_cmd(midi_dev, 0xE6, beats_per_measure); - mpu_cmd(midi_dev, 0x83, 0); /* Enable metronome without accents */ - } -} - -static int mpu_start_timer(int midi_dev) -{ - struct mpu_config *devc= &dev_conf[midi_dev]; - - tmr_reset(devc); - set_timer_mode(midi_dev); - - if (tmr_running) - return TIMER_NOT_ARMED; /* Already running */ - - if (timer_mode & TMR_INTERNAL) - { - mpu_cmd(midi_dev, 0x02, 0); /* Send MIDI start */ - tmr_running = 1; - return TIMER_NOT_ARMED; - } - else - { - mpu_cmd(midi_dev, 0x35, 0); /* Enable mode messages to PC */ - mpu_cmd(midi_dev, 0x38, 0); /* Enable sys common messages to PC */ - mpu_cmd(midi_dev, 0x39, 0); /* Enable real time messages to PC */ - mpu_cmd(midi_dev, 0x97, 0); /* Enable system exclusive messages to PC */ - } - return TIMER_ARMED; -} - -static int mpu_timer_open(int dev, int mode) -{ - int midi_dev = sound_timer_devs[dev]->devlink; - struct mpu_config *devc= &dev_conf[midi_dev]; - - if (timer_open) - return -EBUSY; - - tmr_reset(devc); - curr_tempo = 50; - mpu_cmd(midi_dev, 0xE0, 50); - curr_timebase = hw_timebase = 120; - set_timebase(midi_dev, 120); - timer_open = 1; - metronome_mode = 0; - set_timer_mode(midi_dev); - - mpu_cmd(midi_dev, 0xe7, 0x04); /* Send all clocks to host */ - mpu_cmd(midi_dev, 0x95, 0); /* Enable clock to host */ - - return 0; -} - -static void mpu_timer_close(int dev) -{ - int midi_dev = sound_timer_devs[dev]->devlink; - - timer_open = tmr_running = 0; - mpu_cmd(midi_dev, 0x15, 0); /* Stop all */ - mpu_cmd(midi_dev, 0x94, 0); /* Disable clock to host */ - mpu_cmd(midi_dev, 0x8c, 0); /* Disable measure end messages to host */ - stop_metronome(midi_dev); -} - -static int mpu_timer_event(int dev, unsigned char *event) -{ - unsigned char command = event[1]; - unsigned long parm = *(unsigned int *) &event[4]; - int midi_dev = sound_timer_devs[dev]->devlink; - - switch (command) - { - case TMR_WAIT_REL: - parm += prev_event_time; - case TMR_WAIT_ABS: - if (parm > 0) - { - long time; - - if (parm <= curr_ticks) /* It's the time */ - return TIMER_NOT_ARMED; - time = parm; - next_event_time = prev_event_time = time; - - return TIMER_ARMED; - } - break; - - case TMR_START: - if (tmr_running) - break; - return mpu_start_timer(midi_dev); - - case TMR_STOP: - mpu_cmd(midi_dev, 0x01, 0); /* Send MIDI stop */ - stop_metronome(midi_dev); - tmr_running = 0; - break; - - case TMR_CONTINUE: - if (tmr_running) - break; - mpu_cmd(midi_dev, 0x03, 0); /* Send MIDI continue */ - setup_metronome(midi_dev); - tmr_running = 1; - break; - - case TMR_TEMPO: - if (parm) - { - if (parm < 8) - parm = 8; - if (parm > 250) - parm = 250; - if (mpu_cmd(midi_dev, 0xE0, parm) < 0) - printk(KERN_WARNING "mpu401: Can't set tempo to %d\n", (int) parm); - curr_tempo = parm; - } - break; - - case TMR_ECHO: - seq_copy_to_input(event, 8); - break; - - case TMR_TIMESIG: - if (metronome_mode) /* Metronome enabled */ - { - metronome_mode = parm; - setup_metronome(midi_dev); - } - break; - - default:; - } - return TIMER_NOT_ARMED; -} - -static unsigned long mpu_timer_get_time(int dev) -{ - if (!timer_open) - return 0; - - return curr_ticks; -} - -static int mpu_timer_ioctl(int dev, unsigned int command, void __user *arg) -{ - int midi_dev = sound_timer_devs[dev]->devlink; - int __user *p = (int __user *)arg; - - switch (command) - { - case SNDCTL_TMR_SOURCE: - { - int parm; - - if (get_user(parm, p)) - return -EFAULT; - parm &= timer_caps; - - if (parm != 0) - { - timer_mode = parm; - - if (timer_mode & TMR_MODE_CLS) - mpu_cmd(midi_dev, 0x3c, 0); /* Use CLS sync */ - else if (timer_mode & TMR_MODE_SMPTE) - mpu_cmd(midi_dev, 0x3d, 0); /* Use SMPTE sync */ - } - if (put_user(timer_mode, p)) - return -EFAULT; - return timer_mode; - } - break; - - case SNDCTL_TMR_START: - mpu_start_timer(midi_dev); - return 0; - - case SNDCTL_TMR_STOP: - tmr_running = 0; - mpu_cmd(midi_dev, 0x01, 0); /* Send MIDI stop */ - stop_metronome(midi_dev); - return 0; - - case SNDCTL_TMR_CONTINUE: - if (tmr_running) - return 0; - tmr_running = 1; - mpu_cmd(midi_dev, 0x03, 0); /* Send MIDI continue */ - return 0; - - case SNDCTL_TMR_TIMEBASE: - { - int val; - if (get_user(val, p)) - return -EFAULT; - if (val) - set_timebase(midi_dev, val); - if (put_user(curr_timebase, p)) - return -EFAULT; - return curr_timebase; - } - break; - - case SNDCTL_TMR_TEMPO: - { - int val; - int ret; - - if (get_user(val, p)) - return -EFAULT; - - if (val) - { - if (val < 8) - val = 8; - if (val > 250) - val = 250; - if ((ret = mpu_cmd(midi_dev, 0xE0, val)) < 0) - { - printk(KERN_WARNING "mpu401: Can't set tempo to %d\n", (int) val); - return ret; - } - curr_tempo = val; - } - if (put_user(curr_tempo, p)) - return -EFAULT; - return curr_tempo; - } - break; - - case SNDCTL_SEQ_CTRLRATE: - { - int val; - if (get_user(val, p)) - return -EFAULT; - - if (val != 0) /* Can't change */ - return -EINVAL; - val = ((curr_tempo * curr_timebase) + 30)/60; - if (put_user(val, p)) - return -EFAULT; - return val; - } - break; - - case SNDCTL_SEQ_GETTIME: - if (put_user(curr_ticks, p)) - return -EFAULT; - return curr_ticks; - - case SNDCTL_TMR_METRONOME: - if (get_user(metronome_mode, p)) - return -EFAULT; - setup_metronome(midi_dev); - return 0; - - default:; - } - return -EINVAL; -} - -static void mpu_timer_arm(int dev, long time) -{ - if (time < 0) - time = curr_ticks + 1; - else if (time <= curr_ticks) /* It's the time */ - return; - next_event_time = prev_event_time = time; - return; -} - -static struct sound_timer_operations mpu_timer = -{ - .owner = THIS_MODULE, - .info = {"MPU-401 Timer", 0}, - .priority = 10, /* Priority */ - .devlink = 0, /* Local device link */ - .open = mpu_timer_open, - .close = mpu_timer_close, - .event = mpu_timer_event, - .get_time = mpu_timer_get_time, - .ioctl = mpu_timer_ioctl, - .arm_timer = mpu_timer_arm -}; - -static void mpu_timer_interrupt(void) -{ - if (!timer_open) - return; - - if (!tmr_running) - return; - - curr_clocks++; - curr_ticks = clocks2ticks(curr_clocks); - - if (curr_ticks >= next_event_time) - { - next_event_time = (unsigned long) -1; - sequencer_timer(0); - } -} - -static void timer_ext_event(struct mpu_config *devc, int event, int parm) -{ - int midi_dev = devc->devno; - - if (!devc->timer_flag) - return; - - switch (event) - { - case TMR_CLOCK: - printk(""); - break; - - case TMR_START: - printk("Ext MIDI start\n"); - if (!tmr_running) - { - if (timer_mode & TMR_EXTERNAL) - { - tmr_running = 1; - setup_metronome(midi_dev); - next_event_time = 0; - STORE(SEQ_START_TIMER()); - } - } - break; - - case TMR_STOP: - printk("Ext MIDI stop\n"); - if (timer_mode & TMR_EXTERNAL) - { - tmr_running = 0; - stop_metronome(midi_dev); - STORE(SEQ_STOP_TIMER()); - } - break; - - case TMR_CONTINUE: - printk("Ext MIDI continue\n"); - if (timer_mode & TMR_EXTERNAL) - { - tmr_running = 1; - setup_metronome(midi_dev); - STORE(SEQ_CONTINUE_TIMER()); - } - break; - - case TMR_SPP: - printk("Songpos: %d\n", parm); - if (timer_mode & TMR_EXTERNAL) - { - STORE(SEQ_SONGPOS(parm)); - } - break; - } -} - -static int mpu_timer_init(int midi_dev) -{ - struct mpu_config *devc; - int n; - - devc = &dev_conf[midi_dev]; - - if (timer_initialized) - return -1; /* There is already a similar timer */ - - timer_initialized = 1; - - mpu_timer.devlink = midi_dev; - dev_conf[midi_dev].timer_flag = 1; - - n = sound_alloc_timerdev(); - if (n == -1) - n = 0; - sound_timer_devs[n] = &mpu_timer; - - if (devc->version < 0x20) /* Original MPU-401 */ - timer_caps = TMR_INTERNAL | TMR_EXTERNAL | TMR_MODE_FSK | TMR_MODE_MIDI; - else - { - /* - * The version number 2.0 is used (at least) by the - * MusicQuest cards and the Roland Super-MPU. - * - * MusicQuest has given a special meaning to the bits of the - * revision number. The Super-MPU returns 0. - */ - - if (devc->revision) - timer_caps |= TMR_EXTERNAL | TMR_MODE_MIDI; - - if (devc->revision & 0x02) - timer_caps |= TMR_MODE_CLS; - - - if (devc->revision & 0x40) - max_timebase = 10; /* Has the 216 and 240 ppqn modes */ - } - - timer_mode = (TMR_INTERNAL | TMR_MODE_MIDI) & timer_caps; - return n; - -} - -EXPORT_SYMBOL(probe_mpu401); -EXPORT_SYMBOL(attach_mpu401); -EXPORT_SYMBOL(unload_mpu401); - -static struct address_info cfg; - -static int io = -1; -static int irq = -1; - -module_param_hw(irq, int, irq, 0); -module_param_hw(io, int, ioport, 0); - -static int __init init_mpu401(void) -{ - int ret; - /* Can be loaded either for module use or to provide functions - to others */ - if (io != -1 && irq != -1) { - struct resource *ports; - cfg.irq = irq; - cfg.io_base = io; - ports = request_region(io, 2, "mpu401"); - if (!ports) - return -EBUSY; - if (probe_mpu401(&cfg, ports) == 0) { - release_region(io, 2); - return -ENODEV; - } - if ((ret = attach_mpu401(&cfg, THIS_MODULE))) - return ret; - } - - return 0; -} - -static void __exit cleanup_mpu401(void) -{ - if (io != -1 && irq != -1) { - /* Check for use by, for example, sscape driver */ - unload_mpu401(&cfg); - } -} - -module_init(init_mpu401); -module_exit(cleanup_mpu401); - -#ifndef MODULE -static int __init setup_mpu401(char *str) -{ - /* io, irq */ - int ints[3]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - io = ints[1]; - irq = ints[2]; - - return 1; -} - -__setup("mpu401=", setup_mpu401); -#endif -MODULE_LICENSE("GPL"); diff --git a/sound/oss/mpu401.h b/sound/oss/mpu401.h deleted file mode 100644 index 0ad1e9ee74f7..000000000000 --- a/sound/oss/mpu401.h +++ /dev/null @@ -1,11 +0,0 @@ - -/* From uart401.c */ -int probe_uart401 (struct address_info *hw_config, struct module *owner); -void unload_uart401 (struct address_info *hw_config); - -irqreturn_t uart401intr (int irq, void *dev_id); - -/* From mpu401.c */ -int probe_mpu401(struct address_info *hw_config, struct resource *ports); -int attach_mpu401(struct address_info * hw_config, struct module *owner); -void unload_mpu401(struct address_info *hw_info); diff --git a/sound/oss/msnd.c b/sound/oss/msnd.c deleted file mode 100644 index b63010ad22f1..000000000000 --- a/sound/oss/msnd.c +++ /dev/null @@ -1,413 +0,0 @@ -/********************************************************************* - * - * msnd.c - Driver Base - * - * Turtle Beach MultiSound Sound Card Driver for Linux - * - * Copyright (C) 1998 Andrew Veliath - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - ********************************************************************/ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include "msnd.h" - -#define LOGNAME "msnd" - -#define MSND_MAX_DEVS 4 - -static multisound_dev_t *devs[MSND_MAX_DEVS]; -static int num_devs; - -int msnd_register(multisound_dev_t *dev) -{ - int i; - - for (i = 0; i < MSND_MAX_DEVS; ++i) - if (devs[i] == NULL) - break; - - if (i == MSND_MAX_DEVS) - return -ENOMEM; - - devs[i] = dev; - ++num_devs; - return 0; -} - -void msnd_unregister(multisound_dev_t *dev) -{ - int i; - - for (i = 0; i < MSND_MAX_DEVS; ++i) - if (devs[i] == dev) - break; - - if (i == MSND_MAX_DEVS) { - printk(KERN_WARNING LOGNAME ": Unregistering unknown device\n"); - return; - } - - devs[i] = NULL; - --num_devs; -} - -void msnd_init_queue(void __iomem *base, int start, int size) -{ - writew(PCTODSP_BASED(start), base + JQS_wStart); - writew(PCTODSP_OFFSET(size) - 1, base + JQS_wSize); - writew(0, base + JQS_wHead); - writew(0, base + JQS_wTail); -} - -void msnd_fifo_init(msnd_fifo *f) -{ - f->data = NULL; -} - -void msnd_fifo_free(msnd_fifo *f) -{ - vfree(f->data); - f->data = NULL; -} - -int msnd_fifo_alloc(msnd_fifo *f, size_t n) -{ - msnd_fifo_free(f); - f->data = vmalloc(n); - f->n = n; - f->tail = 0; - f->head = 0; - f->len = 0; - - if (!f->data) - return -ENOMEM; - - return 0; -} - -void msnd_fifo_make_empty(msnd_fifo *f) -{ - f->len = f->tail = f->head = 0; -} - -int msnd_fifo_write_io(msnd_fifo *f, char __iomem *buf, size_t len) -{ - int count = 0; - - while ((count < len) && (f->len != f->n)) { - - int nwritten; - - if (f->head <= f->tail) { - nwritten = len - count; - if (nwritten > f->n - f->tail) - nwritten = f->n - f->tail; - } - else { - nwritten = f->head - f->tail; - if (nwritten > len - count) - nwritten = len - count; - } - - memcpy_fromio(f->data + f->tail, buf, nwritten); - - count += nwritten; - buf += nwritten; - f->len += nwritten; - f->tail += nwritten; - f->tail %= f->n; - } - - return count; -} - -int msnd_fifo_write(msnd_fifo *f, const char *buf, size_t len) -{ - int count = 0; - - while ((count < len) && (f->len != f->n)) { - - int nwritten; - - if (f->head <= f->tail) { - nwritten = len - count; - if (nwritten > f->n - f->tail) - nwritten = f->n - f->tail; - } - else { - nwritten = f->head - f->tail; - if (nwritten > len - count) - nwritten = len - count; - } - - memcpy(f->data + f->tail, buf, nwritten); - - count += nwritten; - buf += nwritten; - f->len += nwritten; - f->tail += nwritten; - f->tail %= f->n; - } - - return count; -} - -int msnd_fifo_read_io(msnd_fifo *f, char __iomem *buf, size_t len) -{ - int count = 0; - - while ((count < len) && (f->len > 0)) { - - int nread; - - if (f->tail <= f->head) { - nread = len - count; - if (nread > f->n - f->head) - nread = f->n - f->head; - } - else { - nread = f->tail - f->head; - if (nread > len - count) - nread = len - count; - } - - memcpy_toio(buf, f->data + f->head, nread); - - count += nread; - buf += nread; - f->len -= nread; - f->head += nread; - f->head %= f->n; - } - - return count; -} - -int msnd_fifo_read(msnd_fifo *f, char *buf, size_t len) -{ - int count = 0; - - while ((count < len) && (f->len > 0)) { - - int nread; - - if (f->tail <= f->head) { - nread = len - count; - if (nread > f->n - f->head) - nread = f->n - f->head; - } - else { - nread = f->tail - f->head; - if (nread > len - count) - nread = len - count; - } - - memcpy(buf, f->data + f->head, nread); - - count += nread; - buf += nread; - f->len -= nread; - f->head += nread; - f->head %= f->n; - } - - return count; -} - -static int msnd_wait_TXDE(multisound_dev_t *dev) -{ - register unsigned int io = dev->io; - register int timeout = 1000; - - while(timeout-- > 0) - if (msnd_inb(io + HP_ISR) & HPISR_TXDE) - return 0; - - return -EIO; -} - -static int msnd_wait_HC0(multisound_dev_t *dev) -{ - register unsigned int io = dev->io; - register int timeout = 1000; - - while(timeout-- > 0) - if (!(msnd_inb(io + HP_CVR) & HPCVR_HC)) - return 0; - - return -EIO; -} - -int msnd_send_dsp_cmd(multisound_dev_t *dev, BYTE cmd) -{ - unsigned long flags; - - spin_lock_irqsave(&dev->lock, flags); - if (msnd_wait_HC0(dev) == 0) { - msnd_outb(cmd, dev->io + HP_CVR); - spin_unlock_irqrestore(&dev->lock, flags); - return 0; - } - spin_unlock_irqrestore(&dev->lock, flags); - - printk(KERN_DEBUG LOGNAME ": Send DSP command timeout\n"); - - return -EIO; -} - -int msnd_send_word(multisound_dev_t *dev, unsigned char high, - unsigned char mid, unsigned char low) -{ - register unsigned int io = dev->io; - - if (msnd_wait_TXDE(dev) == 0) { - msnd_outb(high, io + HP_TXH); - msnd_outb(mid, io + HP_TXM); - msnd_outb(low, io + HP_TXL); - return 0; - } - - printk(KERN_DEBUG LOGNAME ": Send host word timeout\n"); - - return -EIO; -} - -int msnd_upload_host(multisound_dev_t *dev, char *bin, int len) -{ - int i; - - if (len % 3 != 0) { - printk(KERN_WARNING LOGNAME ": Upload host data not multiple of 3!\n"); - return -EINVAL; - } - - for (i = 0; i < len; i += 3) - if (msnd_send_word(dev, bin[i], bin[i + 1], bin[i + 2]) != 0) - return -EIO; - - msnd_inb(dev->io + HP_RXL); - msnd_inb(dev->io + HP_CVR); - - return 0; -} - -int msnd_enable_irq(multisound_dev_t *dev) -{ - unsigned long flags; - - if (dev->irq_ref++) - return 0; - - printk(KERN_DEBUG LOGNAME ": Enabling IRQ\n"); - - spin_lock_irqsave(&dev->lock, flags); - if (msnd_wait_TXDE(dev) == 0) { - msnd_outb(msnd_inb(dev->io + HP_ICR) | HPICR_TREQ, dev->io + HP_ICR); - if (dev->type == msndClassic) - msnd_outb(dev->irqid, dev->io + HP_IRQM); - msnd_outb(msnd_inb(dev->io + HP_ICR) & ~HPICR_TREQ, dev->io + HP_ICR); - msnd_outb(msnd_inb(dev->io + HP_ICR) | HPICR_RREQ, dev->io + HP_ICR); - enable_irq(dev->irq); - msnd_init_queue(dev->DSPQ, dev->dspq_data_buff, dev->dspq_buff_size); - spin_unlock_irqrestore(&dev->lock, flags); - return 0; - } - spin_unlock_irqrestore(&dev->lock, flags); - - printk(KERN_DEBUG LOGNAME ": Enable IRQ failed\n"); - - return -EIO; -} - -int msnd_disable_irq(multisound_dev_t *dev) -{ - unsigned long flags; - - if (--dev->irq_ref > 0) - return 0; - - if (dev->irq_ref < 0) - printk(KERN_DEBUG LOGNAME ": IRQ ref count is %d\n", dev->irq_ref); - - printk(KERN_DEBUG LOGNAME ": Disabling IRQ\n"); - - spin_lock_irqsave(&dev->lock, flags); - if (msnd_wait_TXDE(dev) == 0) { - msnd_outb(msnd_inb(dev->io + HP_ICR) & ~HPICR_RREQ, dev->io + HP_ICR); - if (dev->type == msndClassic) - msnd_outb(HPIRQ_NONE, dev->io + HP_IRQM); - disable_irq(dev->irq); - spin_unlock_irqrestore(&dev->lock, flags); - return 0; - } - spin_unlock_irqrestore(&dev->lock, flags); - - printk(KERN_DEBUG LOGNAME ": Disable IRQ failed\n"); - - return -EIO; -} - -#ifndef LINUX20 -EXPORT_SYMBOL(msnd_register); -EXPORT_SYMBOL(msnd_unregister); - -EXPORT_SYMBOL(msnd_init_queue); - -EXPORT_SYMBOL(msnd_fifo_init); -EXPORT_SYMBOL(msnd_fifo_free); -EXPORT_SYMBOL(msnd_fifo_alloc); -EXPORT_SYMBOL(msnd_fifo_make_empty); -EXPORT_SYMBOL(msnd_fifo_write_io); -EXPORT_SYMBOL(msnd_fifo_read_io); -EXPORT_SYMBOL(msnd_fifo_write); -EXPORT_SYMBOL(msnd_fifo_read); - -EXPORT_SYMBOL(msnd_send_dsp_cmd); -EXPORT_SYMBOL(msnd_send_word); -EXPORT_SYMBOL(msnd_upload_host); - -EXPORT_SYMBOL(msnd_enable_irq); -EXPORT_SYMBOL(msnd_disable_irq); -#endif - -#ifdef MODULE -MODULE_AUTHOR ("Andrew Veliath "); -MODULE_DESCRIPTION ("Turtle Beach MultiSound Driver Base"); -MODULE_LICENSE("GPL"); - - -int init_module(void) -{ - return 0; -} - -void cleanup_module(void) -{ -} -#endif diff --git a/sound/oss/msnd.h b/sound/oss/msnd.h deleted file mode 100644 index c8be47ec2b7e..000000000000 --- a/sound/oss/msnd.h +++ /dev/null @@ -1,278 +0,0 @@ -/********************************************************************* - * - * msnd.h - * - * Turtle Beach MultiSound Sound Card Driver for Linux - * - * Some parts of this header file were derived from the Turtle Beach - * MultiSound Driver Development Kit. - * - * Copyright (C) 1998 Andrew Veliath - * Copyright (C) 1993 Turtle Beach Systems, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - ********************************************************************/ -#ifndef __MSND_H -#define __MSND_H - -#define VERSION "0.8.3.1" - -#define DEFSAMPLERATE DSP_DEFAULT_SPEED -#define DEFSAMPLESIZE AFMT_U8 -#define DEFCHANNELS 1 - -#define DEFFIFOSIZE 128 - -#define SNDCARD_MSND 38 - -#define SRAM_BANK_SIZE 0x8000 -#define SRAM_CNTL_START 0x7F00 - -#define DSP_BASE_ADDR 0x4000 -#define DSP_BANK_BASE 0x4000 - -#define HP_ICR 0x00 -#define HP_CVR 0x01 -#define HP_ISR 0x02 -#define HP_IVR 0x03 -#define HP_NU 0x04 -#define HP_INFO 0x04 -#define HP_TXH 0x05 -#define HP_RXH 0x05 -#define HP_TXM 0x06 -#define HP_RXM 0x06 -#define HP_TXL 0x07 -#define HP_RXL 0x07 - -#define HP_ICR_DEF 0x00 -#define HP_CVR_DEF 0x12 -#define HP_ISR_DEF 0x06 -#define HP_IVR_DEF 0x0f -#define HP_NU_DEF 0x00 - -#define HP_IRQM 0x09 - -#define HPR_BLRC 0x08 -#define HPR_SPR1 0x09 -#define HPR_SPR2 0x0A -#define HPR_TCL0 0x0B -#define HPR_TCL1 0x0C -#define HPR_TCL2 0x0D -#define HPR_TCL3 0x0E -#define HPR_TCL4 0x0F - -#define HPICR_INIT 0x80 -#define HPICR_HM1 0x40 -#define HPICR_HM0 0x20 -#define HPICR_HF1 0x10 -#define HPICR_HF0 0x08 -#define HPICR_TREQ 0x02 -#define HPICR_RREQ 0x01 - -#define HPCVR_HC 0x80 - -#define HPISR_HREQ 0x80 -#define HPISR_DMA 0x40 -#define HPISR_HF3 0x10 -#define HPISR_HF2 0x08 -#define HPISR_TRDY 0x04 -#define HPISR_TXDE 0x02 -#define HPISR_RXDF 0x01 - -#define HPIO_290 0 -#define HPIO_260 1 -#define HPIO_250 2 -#define HPIO_240 3 -#define HPIO_230 4 -#define HPIO_220 5 -#define HPIO_210 6 -#define HPIO_3E0 7 - -#define HPMEM_NONE 0 -#define HPMEM_B000 1 -#define HPMEM_C800 2 -#define HPMEM_D000 3 -#define HPMEM_D400 4 -#define HPMEM_D800 5 -#define HPMEM_E000 6 -#define HPMEM_E800 7 - -#define HPIRQ_NONE 0 -#define HPIRQ_5 1 -#define HPIRQ_7 2 -#define HPIRQ_9 3 -#define HPIRQ_10 4 -#define HPIRQ_11 5 -#define HPIRQ_12 6 -#define HPIRQ_15 7 - -#define HIMT_PLAY_DONE 0x00 -#define HIMT_RECORD_DONE 0x01 -#define HIMT_MIDI_EOS 0x02 -#define HIMT_MIDI_OUT 0x03 - -#define HIMT_MIDI_IN_UCHAR 0x0E -#define HIMT_DSP 0x0F - -#define HDEX_BASE 0x92 -#define HDEX_PLAY_START (0 + HDEX_BASE) -#define HDEX_PLAY_STOP (1 + HDEX_BASE) -#define HDEX_PLAY_PAUSE (2 + HDEX_BASE) -#define HDEX_PLAY_RESUME (3 + HDEX_BASE) -#define HDEX_RECORD_START (4 + HDEX_BASE) -#define HDEX_RECORD_STOP (5 + HDEX_BASE) -#define HDEX_MIDI_IN_START (6 + HDEX_BASE) -#define HDEX_MIDI_IN_STOP (7 + HDEX_BASE) -#define HDEX_MIDI_OUT_START (8 + HDEX_BASE) -#define HDEX_MIDI_OUT_STOP (9 + HDEX_BASE) -#define HDEX_AUX_REQ (10 + HDEX_BASE) - -#define HIWORD(l) ((WORD)((((DWORD)(l)) >> 16) & 0xFFFF)) -#define LOWORD(l) ((WORD)(DWORD)(l)) -#define HIBYTE(w) ((BYTE)(((WORD)(w) >> 8) & 0xFF)) -#define LOBYTE(w) ((BYTE)(w)) -#define MAKELONG(low,hi) ((long)(((WORD)(low))|(((DWORD)((WORD)(hi)))<<16))) -#define MAKEWORD(low,hi) ((WORD)(((BYTE)(low))|(((WORD)((BYTE)(hi)))<<8))) - -#define PCTODSP_OFFSET(w) (USHORT)((w)/2) -#define PCTODSP_BASED(w) (USHORT)(((w)/2) + DSP_BASE_ADDR) -#define DSPTOPC_BASED(w) (((w) - DSP_BASE_ADDR) * 2) - -#ifdef SLOWIO -#define msnd_outb outb_p -#define msnd_inb inb_p -#else -#define msnd_outb outb -#define msnd_inb inb -#endif - -/* JobQueueStruct */ -#define JQS_wStart 0x00 -#define JQS_wSize 0x02 -#define JQS_wHead 0x04 -#define JQS_wTail 0x06 -#define JQS__size 0x08 - -/* DAQueueDataStruct */ -#define DAQDS_wStart 0x00 -#define DAQDS_wSize 0x02 -#define DAQDS_wFormat 0x04 -#define DAQDS_wSampleSize 0x06 -#define DAQDS_wChannels 0x08 -#define DAQDS_wSampleRate 0x0A -#define DAQDS_wIntMsg 0x0C -#define DAQDS_wFlags 0x0E -#define DAQDS__size 0x10 - -typedef u8 BYTE; -typedef u16 USHORT; -typedef u16 WORD; -typedef u32 DWORD; -typedef void __iomem * LPDAQD; - -/* Generic FIFO */ -typedef struct { - size_t n, len; - char *data; - int head, tail; -} msnd_fifo; - -typedef struct multisound_dev { - /* Linux device info */ - char *name; - int dsp_minor, mixer_minor; - int ext_midi_dev, hdr_midi_dev; - - /* Hardware resources */ - int io, numio; - int memid, irqid; - int irq, irq_ref; - unsigned char info; - void __iomem *base; - - /* Motorola 56k DSP SMA */ - void __iomem *SMA; - void __iomem *DAPQ, *DARQ, *MODQ, *MIDQ, *DSPQ; - void __iomem *pwDSPQData, *pwMIDQData, *pwMODQData; - int dspq_data_buff, dspq_buff_size; - - /* State variables */ - enum { msndClassic, msndPinnacle } type; - fmode_t mode; - unsigned long flags; -#define F_RESETTING 0 -#define F_HAVEDIGITAL 1 -#define F_AUDIO_WRITE_INUSE 2 -#define F_WRITING 3 -#define F_WRITEBLOCK 4 -#define F_WRITEFLUSH 5 -#define F_AUDIO_READ_INUSE 6 -#define F_READING 7 -#define F_READBLOCK 8 -#define F_EXT_MIDI_INUSE 9 -#define F_HDR_MIDI_INUSE 10 -#define F_DISABLE_WRITE_NDELAY 11 - wait_queue_head_t writeblock; - wait_queue_head_t readblock; - wait_queue_head_t writeflush; - spinlock_t lock; - int nresets; - unsigned long recsrc; - int left_levels[32]; - int right_levels[32]; - int mixer_mod_count; - int calibrate_signal; - int play_sample_size, play_sample_rate, play_channels; - int play_ndelay; - int rec_sample_size, rec_sample_rate, rec_channels; - int rec_ndelay; - BYTE bCurrentMidiPatch; - - /* Digital audio FIFOs */ - msnd_fifo DAPF, DARF; - int fifosize; - int last_playbank, last_recbank; - - /* MIDI in callback */ - void (*midi_in_interrupt)(struct multisound_dev *); -} multisound_dev_t; - -#ifndef mdelay -# define mdelay(a) udelay((a) * 1000) -#endif - -int msnd_register(multisound_dev_t *dev); -void msnd_unregister(multisound_dev_t *dev); - -void msnd_init_queue(void __iomem *, int start, int size); - -void msnd_fifo_init(msnd_fifo *f); -void msnd_fifo_free(msnd_fifo *f); -int msnd_fifo_alloc(msnd_fifo *f, size_t n); -void msnd_fifo_make_empty(msnd_fifo *f); -int msnd_fifo_write_io(msnd_fifo *f, char __iomem *buf, size_t len); -int msnd_fifo_read_io(msnd_fifo *f, char __iomem *buf, size_t len); -int msnd_fifo_write(msnd_fifo *f, const char *buf, size_t len); -int msnd_fifo_read(msnd_fifo *f, char *buf, size_t len); - -int msnd_send_dsp_cmd(multisound_dev_t *dev, BYTE cmd); -int msnd_send_word(multisound_dev_t *dev, unsigned char high, - unsigned char mid, unsigned char low); -int msnd_upload_host(multisound_dev_t *dev, char *bin, int len); -int msnd_enable_irq(multisound_dev_t *dev); -int msnd_disable_irq(multisound_dev_t *dev); - -#endif /* __MSND_H */ diff --git a/sound/oss/msnd_classic.c b/sound/oss/msnd_classic.c deleted file mode 100644 index 3b23a096fa4e..000000000000 --- a/sound/oss/msnd_classic.c +++ /dev/null @@ -1,3 +0,0 @@ -/* The work is in msnd_pinnacle.c, just define MSND_CLASSIC before it. */ -#define MSND_CLASSIC -#include "msnd_pinnacle.c" diff --git a/sound/oss/msnd_classic.h b/sound/oss/msnd_classic.h deleted file mode 100644 index 1a17dde2f650..000000000000 --- a/sound/oss/msnd_classic.h +++ /dev/null @@ -1,185 +0,0 @@ -/********************************************************************* - * - * msnd_classic.h - * - * Turtle Beach MultiSound Sound Card Driver for Linux - * - * Some parts of this header file were derived from the Turtle Beach - * MultiSound Driver Development Kit. - * - * Copyright (C) 1998 Andrew Veliath - * Copyright (C) 1993 Turtle Beach Systems, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - ********************************************************************/ -#ifndef __MSND_CLASSIC_H -#define __MSND_CLASSIC_H - - -#define DSP_NUMIO 0x10 - -#define HP_MEMM 0x08 - -#define HP_BITM 0x0E -#define HP_WAIT 0x0D -#define HP_DSPR 0x0A -#define HP_PROR 0x0B -#define HP_BLKS 0x0C - -#define HPPRORESET_OFF 0 -#define HPPRORESET_ON 1 - -#define HPDSPRESET_OFF 0 -#define HPDSPRESET_ON 1 - -#define HPBLKSEL_0 0 -#define HPBLKSEL_1 1 - -#define HPWAITSTATE_0 0 -#define HPWAITSTATE_1 1 - -#define HPBITMODE_16 0 -#define HPBITMODE_8 1 - -#define HIDSP_INT_PLAY_UNDER 0x00 -#define HIDSP_INT_RECORD_OVER 0x01 -#define HIDSP_INPUT_CLIPPING 0x02 -#define HIDSP_MIDI_IN_OVER 0x10 -#define HIDSP_MIDI_OVERRUN_ERR 0x13 - -#define HDEXAR_CLEAR_PEAKS 1 -#define HDEXAR_IN_SET_POTS 2 -#define HDEXAR_AUX_SET_POTS 3 -#define HDEXAR_CAL_A_TO_D 4 -#define HDEXAR_RD_EXT_DSP_BITS 5 - -#define TIME_PRO_RESET_DONE 0x028A -#define TIME_PRO_SYSEX 0x0040 -#define TIME_PRO_RESET 0x0032 - -#define AGND 0x01 -#define SIGNAL 0x02 - -#define EXT_DSP_BIT_DCAL 0x0001 -#define EXT_DSP_BIT_MIDI_CON 0x0002 - -#define BUFFSIZE 0x8000 -#define HOSTQ_SIZE 0x40 - -#define SRAM_CNTL_START 0x7F00 -#define SMA_STRUCT_START 0x7F40 - -#define DAP_BUFF_SIZE 0x2400 -#define DAR_BUFF_SIZE 0x2000 - -#define DAPQ_STRUCT_SIZE 0x10 -#define DARQ_STRUCT_SIZE 0x10 -#define DAPQ_BUFF_SIZE (3 * 0x10) -#define DARQ_BUFF_SIZE (3 * 0x10) -#define MODQ_BUFF_SIZE 0x400 -#define MIDQ_BUFF_SIZE 0x200 -#define DSPQ_BUFF_SIZE 0x40 - -#define DAPQ_DATA_BUFF 0x6C00 -#define DARQ_DATA_BUFF 0x6C30 -#define MODQ_DATA_BUFF 0x6C60 -#define MIDQ_DATA_BUFF 0x7060 -#define DSPQ_DATA_BUFF 0x7260 - -#define DAPQ_OFFSET SRAM_CNTL_START -#define DARQ_OFFSET (SRAM_CNTL_START + 0x08) -#define MODQ_OFFSET (SRAM_CNTL_START + 0x10) -#define MIDQ_OFFSET (SRAM_CNTL_START + 0x18) -#define DSPQ_OFFSET (SRAM_CNTL_START + 0x20) - -#define MOP_SYNTH 0x10 -#define MOP_EXTOUT 0x32 -#define MOP_EXTTHRU 0x02 -#define MOP_OUTMASK 0x01 - -#define MIP_EXTIN 0x01 -#define MIP_SYNTH 0x00 -#define MIP_INMASK 0x32 - -/* Classic SMA Common Data */ -#define SMA_wCurrPlayBytes 0x0000 -#define SMA_wCurrRecordBytes 0x0002 -#define SMA_wCurrPlayVolLeft 0x0004 -#define SMA_wCurrPlayVolRight 0x0006 -#define SMA_wCurrInVolLeft 0x0008 -#define SMA_wCurrInVolRight 0x000a -#define SMA_wUser_3 0x000c -#define SMA_wUser_4 0x000e -#define SMA_dwUser_5 0x0010 -#define SMA_dwUser_6 0x0014 -#define SMA_wUser_7 0x0018 -#define SMA_wReserved_A 0x001a -#define SMA_wReserved_B 0x001c -#define SMA_wReserved_C 0x001e -#define SMA_wReserved_D 0x0020 -#define SMA_wReserved_E 0x0022 -#define SMA_wReserved_F 0x0024 -#define SMA_wReserved_G 0x0026 -#define SMA_wReserved_H 0x0028 -#define SMA_wCurrDSPStatusFlags 0x002a -#define SMA_wCurrHostStatusFlags 0x002c -#define SMA_wCurrInputTagBits 0x002e -#define SMA_wCurrLeftPeak 0x0030 -#define SMA_wCurrRightPeak 0x0032 -#define SMA_wExtDSPbits 0x0034 -#define SMA_bExtHostbits 0x0036 -#define SMA_bBoardLevel 0x0037 -#define SMA_bInPotPosRight 0x0038 -#define SMA_bInPotPosLeft 0x0039 -#define SMA_bAuxPotPosRight 0x003a -#define SMA_bAuxPotPosLeft 0x003b -#define SMA_wCurrMastVolLeft 0x003c -#define SMA_wCurrMastVolRight 0x003e -#define SMA_bUser_12 0x0040 -#define SMA_bUser_13 0x0041 -#define SMA_wUser_14 0x0042 -#define SMA_wUser_15 0x0044 -#define SMA_wCalFreqAtoD 0x0046 -#define SMA_wUser_16 0x0048 -#define SMA_wUser_17 0x004a -#define SMA__size 0x004c - -#ifdef HAVE_DSPCODEH -# include "msndperm.c" -# include "msndinit.c" -# define PERMCODE msndperm -# define INITCODE msndinit -# define PERMCODESIZE sizeof(msndperm) -# define INITCODESIZE sizeof(msndinit) -#else -# ifndef CONFIG_MSNDCLAS_INIT_FILE -# define CONFIG_MSNDCLAS_INIT_FILE \ - "/etc/sound/msndinit.bin" -# endif -# ifndef CONFIG_MSNDCLAS_PERM_FILE -# define CONFIG_MSNDCLAS_PERM_FILE \ - "/etc/sound/msndperm.bin" -# endif -# define PERMCODEFILE CONFIG_MSNDCLAS_PERM_FILE -# define INITCODEFILE CONFIG_MSNDCLAS_INIT_FILE -# define PERMCODE dspini -# define INITCODE permini -# define PERMCODESIZE sizeof_dspini -# define INITCODESIZE sizeof_permini -#endif -#define LONGNAME "MultiSound (Classic/Monterey/Tahiti)" - -#endif /* __MSND_CLASSIC_H */ diff --git a/sound/oss/msnd_pinnacle.c b/sound/oss/msnd_pinnacle.c deleted file mode 100644 index d2abc2cf3213..000000000000 --- a/sound/oss/msnd_pinnacle.c +++ /dev/null @@ -1,1941 +0,0 @@ -/********************************************************************* - * - * Turtle Beach MultiSound Sound Card Driver for Linux - * Linux 2.0/2.2 Version - * - * msnd_pinnacle.c / msnd_classic.c - * - * -- If MSND_CLASSIC is defined: - * - * -> driver for Turtle Beach Classic/Monterey/Tahiti - * - * -- Else - * - * -> driver for Turtle Beach Pinnacle/Fiji - * - * Copyright (C) 1998 Andrew Veliath - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * 12-3-2000 Modified IO port validation Steve Sycamore - * - ********************************************************************/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include "sound_config.h" -#include "sound_firmware.h" -#ifdef MSND_CLASSIC -# ifndef __alpha__ -# define SLOWIO -# endif -#endif -#include "msnd.h" -#ifdef MSND_CLASSIC -# ifdef CONFIG_MSNDCLAS_HAVE_BOOT -# define HAVE_DSPCODEH -# endif -# include "msnd_classic.h" -# define LOGNAME "msnd_classic" -#else -# ifdef CONFIG_MSNDPIN_HAVE_BOOT -# define HAVE_DSPCODEH -# endif -# include "msnd_pinnacle.h" -# define LOGNAME "msnd_pinnacle" -#endif - -#ifndef CONFIG_MSND_WRITE_NDELAY -# define CONFIG_MSND_WRITE_NDELAY 1 -#endif - -#define get_play_delay_jiffies(size) ((size) * HZ * \ - dev.play_sample_size / 8 / \ - dev.play_sample_rate / \ - dev.play_channels) - -#define get_rec_delay_jiffies(size) ((size) * HZ * \ - dev.rec_sample_size / 8 / \ - dev.rec_sample_rate / \ - dev.rec_channels) - -static DEFINE_MUTEX(msnd_pinnacle_mutex); -static multisound_dev_t dev; - -#ifndef HAVE_DSPCODEH -static char *dspini, *permini; -static int sizeof_dspini, sizeof_permini; -#endif - -static int dsp_full_reset(void); -static void dsp_write_flush(void); - -static __inline__ int chk_send_dsp_cmd(multisound_dev_t *dev, register BYTE cmd) -{ - if (msnd_send_dsp_cmd(dev, cmd) == 0) - return 0; - dsp_full_reset(); - return msnd_send_dsp_cmd(dev, cmd); -} - -static void reset_play_queue(void) -{ - int n; - LPDAQD lpDAQ; - - dev.last_playbank = -1; - writew(PCTODSP_OFFSET(0 * DAQDS__size), dev.DAPQ + JQS_wHead); - writew(PCTODSP_OFFSET(0 * DAQDS__size), dev.DAPQ + JQS_wTail); - - for (n = 0, lpDAQ = dev.base + DAPQ_DATA_BUFF; n < 3; ++n, lpDAQ += DAQDS__size) { - writew(PCTODSP_BASED((DWORD)(DAP_BUFF_SIZE * n)), lpDAQ + DAQDS_wStart); - writew(0, lpDAQ + DAQDS_wSize); - writew(1, lpDAQ + DAQDS_wFormat); - writew(dev.play_sample_size, lpDAQ + DAQDS_wSampleSize); - writew(dev.play_channels, lpDAQ + DAQDS_wChannels); - writew(dev.play_sample_rate, lpDAQ + DAQDS_wSampleRate); - writew(HIMT_PLAY_DONE * 0x100 + n, lpDAQ + DAQDS_wIntMsg); - writew(n, lpDAQ + DAQDS_wFlags); - } -} - -static void reset_record_queue(void) -{ - int n; - LPDAQD lpDAQ; - unsigned long flags; - - dev.last_recbank = 2; - writew(PCTODSP_OFFSET(0 * DAQDS__size), dev.DARQ + JQS_wHead); - writew(PCTODSP_OFFSET(dev.last_recbank * DAQDS__size), dev.DARQ + JQS_wTail); - - /* Critical section: bank 1 access */ - spin_lock_irqsave(&dev.lock, flags); - msnd_outb(HPBLKSEL_1, dev.io + HP_BLKS); - memset_io(dev.base, 0, DAR_BUFF_SIZE * 3); - msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS); - spin_unlock_irqrestore(&dev.lock, flags); - - for (n = 0, lpDAQ = dev.base + DARQ_DATA_BUFF; n < 3; ++n, lpDAQ += DAQDS__size) { - writew(PCTODSP_BASED((DWORD)(DAR_BUFF_SIZE * n)) + 0x4000, lpDAQ + DAQDS_wStart); - writew(DAR_BUFF_SIZE, lpDAQ + DAQDS_wSize); - writew(1, lpDAQ + DAQDS_wFormat); - writew(dev.rec_sample_size, lpDAQ + DAQDS_wSampleSize); - writew(dev.rec_channels, lpDAQ + DAQDS_wChannels); - writew(dev.rec_sample_rate, lpDAQ + DAQDS_wSampleRate); - writew(HIMT_RECORD_DONE * 0x100 + n, lpDAQ + DAQDS_wIntMsg); - writew(n, lpDAQ + DAQDS_wFlags); - } -} - -static void reset_queues(void) -{ - if (dev.mode & FMODE_WRITE) { - msnd_fifo_make_empty(&dev.DAPF); - reset_play_queue(); - } - if (dev.mode & FMODE_READ) { - msnd_fifo_make_empty(&dev.DARF); - reset_record_queue(); - } -} - -static int dsp_set_format(struct file *file, int val) -{ - int data, i; - LPDAQD lpDAQ, lpDARQ; - - lpDAQ = dev.base + DAPQ_DATA_BUFF; - lpDARQ = dev.base + DARQ_DATA_BUFF; - - switch (val) { - case AFMT_U8: - case AFMT_S16_LE: - data = val; - break; - default: - data = DEFSAMPLESIZE; - break; - } - - for (i = 0; i < 3; ++i, lpDAQ += DAQDS__size, lpDARQ += DAQDS__size) { - if (file->f_mode & FMODE_WRITE) - writew(data, lpDAQ + DAQDS_wSampleSize); - if (file->f_mode & FMODE_READ) - writew(data, lpDARQ + DAQDS_wSampleSize); - } - if (file->f_mode & FMODE_WRITE) - dev.play_sample_size = data; - if (file->f_mode & FMODE_READ) - dev.rec_sample_size = data; - - return data; -} - -static int dsp_get_frag_size(void) -{ - int size; - size = dev.fifosize / 4; - if (size > 32 * 1024) - size = 32 * 1024; - return size; -} - -static int dsp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -{ - int val, i, data, tmp; - LPDAQD lpDAQ, lpDARQ; - audio_buf_info abinfo; - unsigned long flags; - int __user *p = (int __user *)arg; - - lpDAQ = dev.base + DAPQ_DATA_BUFF; - lpDARQ = dev.base + DARQ_DATA_BUFF; - - switch (cmd) { - case SNDCTL_DSP_SUBDIVIDE: - case SNDCTL_DSP_SETFRAGMENT: - case SNDCTL_DSP_SETDUPLEX: - case SNDCTL_DSP_POST: - return 0; - - case SNDCTL_DSP_GETIPTR: - case SNDCTL_DSP_GETOPTR: - case SNDCTL_DSP_MAPINBUF: - case SNDCTL_DSP_MAPOUTBUF: - return -EINVAL; - - case SNDCTL_DSP_GETOSPACE: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - spin_lock_irqsave(&dev.lock, flags); - abinfo.fragsize = dsp_get_frag_size(); - abinfo.bytes = dev.DAPF.n - dev.DAPF.len; - abinfo.fragstotal = dev.DAPF.n / abinfo.fragsize; - abinfo.fragments = abinfo.bytes / abinfo.fragsize; - spin_unlock_irqrestore(&dev.lock, flags); - return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETISPACE: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - spin_lock_irqsave(&dev.lock, flags); - abinfo.fragsize = dsp_get_frag_size(); - abinfo.bytes = dev.DARF.n - dev.DARF.len; - abinfo.fragstotal = dev.DARF.n / abinfo.fragsize; - abinfo.fragments = abinfo.bytes / abinfo.fragsize; - spin_unlock_irqrestore(&dev.lock, flags); - return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_RESET: - dev.nresets = 0; - reset_queues(); - return 0; - - case SNDCTL_DSP_SYNC: - dsp_write_flush(); - return 0; - - case SNDCTL_DSP_GETBLKSIZE: - tmp = dsp_get_frag_size(); - if (put_user(tmp, p)) - return -EFAULT; - return 0; - - case SNDCTL_DSP_GETFMTS: - val = AFMT_S16_LE | AFMT_U8; - if (put_user(val, p)) - return -EFAULT; - return 0; - - case SNDCTL_DSP_SETFMT: - if (get_user(val, p)) - return -EFAULT; - - if (file->f_mode & FMODE_WRITE) - data = val == AFMT_QUERY - ? dev.play_sample_size - : dsp_set_format(file, val); - else - data = val == AFMT_QUERY - ? dev.rec_sample_size - : dsp_set_format(file, val); - - if (put_user(data, p)) - return -EFAULT; - return 0; - - case SNDCTL_DSP_NONBLOCK: - if (!test_bit(F_DISABLE_WRITE_NDELAY, &dev.flags) && - file->f_mode & FMODE_WRITE) - dev.play_ndelay = 1; - if (file->f_mode & FMODE_READ) - dev.rec_ndelay = 1; - return 0; - - case SNDCTL_DSP_GETCAPS: - val = DSP_CAP_DUPLEX | DSP_CAP_BATCH; - if (put_user(val, p)) - return -EFAULT; - return 0; - - case SNDCTL_DSP_SPEED: - if (get_user(val, p)) - return -EFAULT; - - if (val < 8000) - val = 8000; - - if (val > 48000) - val = 48000; - - data = val; - - for (i = 0; i < 3; ++i, lpDAQ += DAQDS__size, lpDARQ += DAQDS__size) { - if (file->f_mode & FMODE_WRITE) - writew(data, lpDAQ + DAQDS_wSampleRate); - if (file->f_mode & FMODE_READ) - writew(data, lpDARQ + DAQDS_wSampleRate); - } - if (file->f_mode & FMODE_WRITE) - dev.play_sample_rate = data; - if (file->f_mode & FMODE_READ) - dev.rec_sample_rate = data; - - if (put_user(data, p)) - return -EFAULT; - return 0; - - case SNDCTL_DSP_CHANNELS: - case SNDCTL_DSP_STEREO: - if (get_user(val, p)) - return -EFAULT; - - if (cmd == SNDCTL_DSP_CHANNELS) { - switch (val) { - case 1: - case 2: - data = val; - break; - default: - val = data = 2; - break; - } - } else { - switch (val) { - case 0: - data = 1; - break; - default: - val = 1; - case 1: - data = 2; - break; - } - } - - for (i = 0; i < 3; ++i, lpDAQ += DAQDS__size, lpDARQ += DAQDS__size) { - if (file->f_mode & FMODE_WRITE) - writew(data, lpDAQ + DAQDS_wChannels); - if (file->f_mode & FMODE_READ) - writew(data, lpDARQ + DAQDS_wChannels); - } - if (file->f_mode & FMODE_WRITE) - dev.play_channels = data; - if (file->f_mode & FMODE_READ) - dev.rec_channels = data; - - if (put_user(val, p)) - return -EFAULT; - return 0; - } - - return -EINVAL; -} - -static int mixer_get(int d) -{ - if (d > 31) - return -EINVAL; - - switch (d) { - case SOUND_MIXER_VOLUME: - case SOUND_MIXER_PCM: - case SOUND_MIXER_LINE: - case SOUND_MIXER_IMIX: - case SOUND_MIXER_LINE1: -#ifndef MSND_CLASSIC - case SOUND_MIXER_MIC: - case SOUND_MIXER_SYNTH: -#endif - return (dev.left_levels[d] >> 8) * 100 / 0xff | - (((dev.right_levels[d] >> 8) * 100 / 0xff) << 8); - default: - return 0; - } -} - -#define update_volm(a,b) \ - writew((dev.left_levels[a] >> 1) * \ - readw(dev.SMA + SMA_wCurrMastVolLeft) / 0xffff, \ - dev.SMA + SMA_##b##Left); \ - writew((dev.right_levels[a] >> 1) * \ - readw(dev.SMA + SMA_wCurrMastVolRight) / 0xffff, \ - dev.SMA + SMA_##b##Right); - -#define update_potm(d,s,ar) \ - writeb((dev.left_levels[d] >> 8) * \ - readw(dev.SMA + SMA_wCurrMastVolLeft) / 0xffff, \ - dev.SMA + SMA_##s##Left); \ - writeb((dev.right_levels[d] >> 8) * \ - readw(dev.SMA + SMA_wCurrMastVolRight) / 0xffff, \ - dev.SMA + SMA_##s##Right); \ - if (msnd_send_word(&dev, 0, 0, ar) == 0) \ - chk_send_dsp_cmd(&dev, HDEX_AUX_REQ); - -#define update_pot(d,s,ar) \ - writeb(dev.left_levels[d] >> 8, \ - dev.SMA + SMA_##s##Left); \ - writeb(dev.right_levels[d] >> 8, \ - dev.SMA + SMA_##s##Right); \ - if (msnd_send_word(&dev, 0, 0, ar) == 0) \ - chk_send_dsp_cmd(&dev, HDEX_AUX_REQ); - -static int mixer_set(int d, int value) -{ - int left = value & 0x000000ff; - int right = (value & 0x0000ff00) >> 8; - int bLeft, bRight; - int wLeft, wRight; - int updatemaster = 0; - - if (d > 31) - return -EINVAL; - - bLeft = left * 0xff / 100; - wLeft = left * 0xffff / 100; - - bRight = right * 0xff / 100; - wRight = right * 0xffff / 100; - - dev.left_levels[d] = wLeft; - dev.right_levels[d] = wRight; - - switch (d) { - /* master volume unscaled controls */ - case SOUND_MIXER_LINE: /* line pot control */ - /* scaled by IMIX in digital mix */ - writeb(bLeft, dev.SMA + SMA_bInPotPosLeft); - writeb(bRight, dev.SMA + SMA_bInPotPosRight); - if (msnd_send_word(&dev, 0, 0, HDEXAR_IN_SET_POTS) == 0) - chk_send_dsp_cmd(&dev, HDEX_AUX_REQ); - break; -#ifndef MSND_CLASSIC - case SOUND_MIXER_MIC: /* mic pot control */ - /* scaled by IMIX in digital mix */ - writeb(bLeft, dev.SMA + SMA_bMicPotPosLeft); - writeb(bRight, dev.SMA + SMA_bMicPotPosRight); - if (msnd_send_word(&dev, 0, 0, HDEXAR_MIC_SET_POTS) == 0) - chk_send_dsp_cmd(&dev, HDEX_AUX_REQ); - break; -#endif - case SOUND_MIXER_VOLUME: /* master volume */ - writew(wLeft, dev.SMA + SMA_wCurrMastVolLeft); - writew(wRight, dev.SMA + SMA_wCurrMastVolRight); - /* fall through */ - - case SOUND_MIXER_LINE1: /* aux pot control */ - /* scaled by master volume */ - /* fall through */ - - /* digital controls */ - case SOUND_MIXER_SYNTH: /* synth vol (dsp mix) */ - case SOUND_MIXER_PCM: /* pcm vol (dsp mix) */ - case SOUND_MIXER_IMIX: /* input monitor (dsp mix) */ - /* scaled by master volume */ - updatemaster = 1; - break; - - default: - return 0; - } - - if (updatemaster) { - /* update master volume scaled controls */ - update_volm(SOUND_MIXER_PCM, wCurrPlayVol); - update_volm(SOUND_MIXER_IMIX, wCurrInVol); -#ifndef MSND_CLASSIC - update_volm(SOUND_MIXER_SYNTH, wCurrMHdrVol); -#endif - update_potm(SOUND_MIXER_LINE1, bAuxPotPos, HDEXAR_AUX_SET_POTS); - } - - return mixer_get(d); -} - -static void mixer_setup(void) -{ - update_pot(SOUND_MIXER_LINE, bInPotPos, HDEXAR_IN_SET_POTS); - update_potm(SOUND_MIXER_LINE1, bAuxPotPos, HDEXAR_AUX_SET_POTS); - update_volm(SOUND_MIXER_PCM, wCurrPlayVol); - update_volm(SOUND_MIXER_IMIX, wCurrInVol); -#ifndef MSND_CLASSIC - update_pot(SOUND_MIXER_MIC, bMicPotPos, HDEXAR_MIC_SET_POTS); - update_volm(SOUND_MIXER_SYNTH, wCurrMHdrVol); -#endif -} - -static unsigned long set_recsrc(unsigned long recsrc) -{ - if (dev.recsrc == recsrc) - return dev.recsrc; -#ifdef HAVE_NORECSRC - else if (recsrc == 0) - dev.recsrc = 0; -#endif - else - dev.recsrc ^= recsrc; - -#ifndef MSND_CLASSIC - if (dev.recsrc & SOUND_MASK_IMIX) { - if (msnd_send_word(&dev, 0, 0, HDEXAR_SET_ANA_IN) == 0) - chk_send_dsp_cmd(&dev, HDEX_AUX_REQ); - } - else if (dev.recsrc & SOUND_MASK_SYNTH) { - if (msnd_send_word(&dev, 0, 0, HDEXAR_SET_SYNTH_IN) == 0) - chk_send_dsp_cmd(&dev, HDEX_AUX_REQ); - } - else if ((dev.recsrc & SOUND_MASK_DIGITAL1) && test_bit(F_HAVEDIGITAL, &dev.flags)) { - if (msnd_send_word(&dev, 0, 0, HDEXAR_SET_DAT_IN) == 0) - chk_send_dsp_cmd(&dev, HDEX_AUX_REQ); - } - else { -#ifdef HAVE_NORECSRC - /* Select no input (?) */ - dev.recsrc = 0; -#else - dev.recsrc = SOUND_MASK_IMIX; - if (msnd_send_word(&dev, 0, 0, HDEXAR_SET_ANA_IN) == 0) - chk_send_dsp_cmd(&dev, HDEX_AUX_REQ); -#endif - } -#endif /* MSND_CLASSIC */ - - return dev.recsrc; -} - -static unsigned long force_recsrc(unsigned long recsrc) -{ - dev.recsrc = 0; - return set_recsrc(recsrc); -} - -#define set_mixer_info() \ - memset(&info, 0, sizeof(info)); \ - strlcpy(info.id, "MSNDMIXER", sizeof(info.id)); \ - strlcpy(info.name, "MultiSound Mixer", sizeof(info.name)); - -static int mixer_ioctl(unsigned int cmd, unsigned long arg) -{ - if (cmd == SOUND_MIXER_INFO) { - mixer_info info; - set_mixer_info(); - info.modify_counter = dev.mixer_mod_count; - if (copy_to_user((void __user *)arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } else if (cmd == SOUND_OLD_MIXER_INFO) { - _old_mixer_info info; - set_mixer_info(); - if (copy_to_user((void __user *)arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } else if (cmd == SOUND_MIXER_PRIVATE1) { - dev.nresets = 0; - dsp_full_reset(); - return 0; - } else if (((cmd >> 8) & 0xff) == 'M') { - int val = 0; - - if (_SIOC_DIR(cmd) & _SIOC_WRITE) { - switch (cmd & 0xff) { - case SOUND_MIXER_RECSRC: - if (get_user(val, (int __user *)arg)) - return -EFAULT; - val = set_recsrc(val); - break; - - default: - if (get_user(val, (int __user *)arg)) - return -EFAULT; - val = mixer_set(cmd & 0xff, val); - break; - } - ++dev.mixer_mod_count; - return put_user(val, (int __user *)arg); - } else { - switch (cmd & 0xff) { - case SOUND_MIXER_RECSRC: - val = dev.recsrc; - break; - - case SOUND_MIXER_DEVMASK: - case SOUND_MIXER_STEREODEVS: - val = SOUND_MASK_PCM | - SOUND_MASK_LINE | - SOUND_MASK_IMIX | - SOUND_MASK_LINE1 | -#ifndef MSND_CLASSIC - SOUND_MASK_MIC | - SOUND_MASK_SYNTH | -#endif - SOUND_MASK_VOLUME; - break; - - case SOUND_MIXER_RECMASK: -#ifdef MSND_CLASSIC - val = 0; -#else - val = SOUND_MASK_IMIX | - SOUND_MASK_SYNTH; - if (test_bit(F_HAVEDIGITAL, &dev.flags)) - val |= SOUND_MASK_DIGITAL1; -#endif - break; - - case SOUND_MIXER_CAPS: - val = SOUND_CAP_EXCL_INPUT; - break; - - default: - if ((val = mixer_get(cmd & 0xff)) < 0) - return -EINVAL; - break; - } - } - - return put_user(val, (int __user *)arg); - } - - return -EINVAL; -} - -static long dev_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -{ - int minor = iminor(file_inode(file)); - int ret; - - if (cmd == OSS_GETVERSION) { - int sound_version = SOUND_VERSION; - return put_user(sound_version, (int __user *)arg); - } - - ret = -EINVAL; - - mutex_lock(&msnd_pinnacle_mutex); - if (minor == dev.dsp_minor) - ret = dsp_ioctl(file, cmd, arg); - else if (minor == dev.mixer_minor) - ret = mixer_ioctl(cmd, arg); - mutex_unlock(&msnd_pinnacle_mutex); - - return ret; -} - -static void dsp_write_flush(void) -{ - int timeout = get_play_delay_jiffies(dev.DAPF.len); - - if (!(dev.mode & FMODE_WRITE) || !test_bit(F_WRITING, &dev.flags)) - return; - set_bit(F_WRITEFLUSH, &dev.flags); - wait_event_interruptible_timeout( - dev.writeflush, - !test_bit(F_WRITEFLUSH, &dev.flags), - timeout); - clear_bit(F_WRITEFLUSH, &dev.flags); - if (!signal_pending(current)) { - __set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout(get_play_delay_jiffies(DAP_BUFF_SIZE)); - } - clear_bit(F_WRITING, &dev.flags); -} - -static void dsp_halt(struct file *file) -{ - if ((file ? file->f_mode : dev.mode) & FMODE_READ) { - clear_bit(F_READING, &dev.flags); - chk_send_dsp_cmd(&dev, HDEX_RECORD_STOP); - msnd_disable_irq(&dev); - if (file) { - printk(KERN_DEBUG LOGNAME ": Stopping read for %p\n", file); - dev.mode &= ~FMODE_READ; - } - clear_bit(F_AUDIO_READ_INUSE, &dev.flags); - } - if ((file ? file->f_mode : dev.mode) & FMODE_WRITE) { - if (test_bit(F_WRITING, &dev.flags)) { - dsp_write_flush(); - chk_send_dsp_cmd(&dev, HDEX_PLAY_STOP); - } - msnd_disable_irq(&dev); - if (file) { - printk(KERN_DEBUG LOGNAME ": Stopping write for %p\n", file); - dev.mode &= ~FMODE_WRITE; - } - clear_bit(F_AUDIO_WRITE_INUSE, &dev.flags); - } -} - -static int dsp_release(struct file *file) -{ - dsp_halt(file); - return 0; -} - -static int dsp_open(struct file *file) -{ - if ((file ? file->f_mode : dev.mode) & FMODE_WRITE) { - set_bit(F_AUDIO_WRITE_INUSE, &dev.flags); - clear_bit(F_WRITING, &dev.flags); - msnd_fifo_make_empty(&dev.DAPF); - reset_play_queue(); - if (file) { - printk(KERN_DEBUG LOGNAME ": Starting write for %p\n", file); - dev.mode |= FMODE_WRITE; - } - msnd_enable_irq(&dev); - } - if ((file ? file->f_mode : dev.mode) & FMODE_READ) { - set_bit(F_AUDIO_READ_INUSE, &dev.flags); - clear_bit(F_READING, &dev.flags); - msnd_fifo_make_empty(&dev.DARF); - reset_record_queue(); - if (file) { - printk(KERN_DEBUG LOGNAME ": Starting read for %p\n", file); - dev.mode |= FMODE_READ; - } - msnd_enable_irq(&dev); - } - return 0; -} - -static void set_default_play_audio_parameters(void) -{ - dev.play_sample_size = DEFSAMPLESIZE; - dev.play_sample_rate = DEFSAMPLERATE; - dev.play_channels = DEFCHANNELS; -} - -static void set_default_rec_audio_parameters(void) -{ - dev.rec_sample_size = DEFSAMPLESIZE; - dev.rec_sample_rate = DEFSAMPLERATE; - dev.rec_channels = DEFCHANNELS; -} - -static void set_default_audio_parameters(void) -{ - set_default_play_audio_parameters(); - set_default_rec_audio_parameters(); -} - -static int dev_open(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - int err = 0; - - mutex_lock(&msnd_pinnacle_mutex); - if (minor == dev.dsp_minor) { - if ((file->f_mode & FMODE_WRITE && - test_bit(F_AUDIO_WRITE_INUSE, &dev.flags)) || - (file->f_mode & FMODE_READ && - test_bit(F_AUDIO_READ_INUSE, &dev.flags))) { - err = -EBUSY; - goto out; - } - - if ((err = dsp_open(file)) >= 0) { - dev.nresets = 0; - if (file->f_mode & FMODE_WRITE) { - set_default_play_audio_parameters(); - if (!test_bit(F_DISABLE_WRITE_NDELAY, &dev.flags)) - dev.play_ndelay = (file->f_flags & O_NDELAY) ? 1 : 0; - else - dev.play_ndelay = 0; - } - if (file->f_mode & FMODE_READ) { - set_default_rec_audio_parameters(); - dev.rec_ndelay = (file->f_flags & O_NDELAY) ? 1 : 0; - } - } - } - else if (minor == dev.mixer_minor) { - /* nothing */ - } else - err = -EINVAL; -out: - mutex_unlock(&msnd_pinnacle_mutex); - return err; -} - -static int dev_release(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - int err = 0; - - mutex_lock(&msnd_pinnacle_mutex); - if (minor == dev.dsp_minor) - err = dsp_release(file); - else if (minor == dev.mixer_minor) { - /* nothing */ - } else - err = -EINVAL; - mutex_unlock(&msnd_pinnacle_mutex); - return err; -} - -static __inline__ int pack_DARQ_to_DARF(register int bank) -{ - register int size, timeout = 3; - register WORD wTmp; - LPDAQD DAQD; - - /* Increment the tail and check for queue wrap */ - wTmp = readw(dev.DARQ + JQS_wTail) + PCTODSP_OFFSET(DAQDS__size); - if (wTmp > readw(dev.DARQ + JQS_wSize)) - wTmp = 0; - while (wTmp == readw(dev.DARQ + JQS_wHead) && timeout--) - udelay(1); - writew(wTmp, dev.DARQ + JQS_wTail); - - /* Get our digital audio queue struct */ - DAQD = bank * DAQDS__size + dev.base + DARQ_DATA_BUFF; - - /* Get length of data */ - size = readw(DAQD + DAQDS_wSize); - - /* Read data from the head (unprotected bank 1 access okay - since this is only called inside an interrupt) */ - msnd_outb(HPBLKSEL_1, dev.io + HP_BLKS); - msnd_fifo_write_io( - &dev.DARF, - dev.base + bank * DAR_BUFF_SIZE, - size); - msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS); - - return 1; -} - -static __inline__ int pack_DAPF_to_DAPQ(register int start) -{ - register WORD DAPQ_tail; - register int protect = start, nbanks = 0; - LPDAQD DAQD; - - DAPQ_tail = readw(dev.DAPQ + JQS_wTail); - while (DAPQ_tail != readw(dev.DAPQ + JQS_wHead) || start) { - register int bank_num = DAPQ_tail / PCTODSP_OFFSET(DAQDS__size); - register int n; - unsigned long flags; - - /* Write the data to the new tail */ - if (protect) { - /* Critical section: protect fifo in non-interrupt */ - spin_lock_irqsave(&dev.lock, flags); - n = msnd_fifo_read_io( - &dev.DAPF, - dev.base + bank_num * DAP_BUFF_SIZE, - DAP_BUFF_SIZE); - spin_unlock_irqrestore(&dev.lock, flags); - } else { - n = msnd_fifo_read_io( - &dev.DAPF, - dev.base + bank_num * DAP_BUFF_SIZE, - DAP_BUFF_SIZE); - } - if (!n) - break; - - if (start) - start = 0; - - /* Get our digital audio queue struct */ - DAQD = bank_num * DAQDS__size + dev.base + DAPQ_DATA_BUFF; - - /* Write size of this bank */ - writew(n, DAQD + DAQDS_wSize); - ++nbanks; - - /* Then advance the tail */ - DAPQ_tail = (++bank_num % 3) * PCTODSP_OFFSET(DAQDS__size); - writew(DAPQ_tail, dev.DAPQ + JQS_wTail); - /* Tell the DSP to play the bank */ - msnd_send_dsp_cmd(&dev, HDEX_PLAY_START); - } - return nbanks; -} - -static int dsp_read(char __user *buf, size_t len) -{ - int count = len; - char *page = (char *)__get_free_page(GFP_KERNEL); - int timeout = get_rec_delay_jiffies(DAR_BUFF_SIZE); - - if (!page) - return -ENOMEM; - - while (count > 0) { - int n, k; - unsigned long flags; - - k = PAGE_SIZE; - if (k > count) - k = count; - - /* Critical section: protect fifo in non-interrupt */ - spin_lock_irqsave(&dev.lock, flags); - n = msnd_fifo_read(&dev.DARF, page, k); - spin_unlock_irqrestore(&dev.lock, flags); - if (copy_to_user(buf, page, n)) { - free_page((unsigned long)page); - return -EFAULT; - } - buf += n; - count -= n; - - if (n == k && count) - continue; - - if (!test_bit(F_READING, &dev.flags) && dev.mode & FMODE_READ) { - dev.last_recbank = -1; - if (chk_send_dsp_cmd(&dev, HDEX_RECORD_START) == 0) - set_bit(F_READING, &dev.flags); - } - - if (dev.rec_ndelay) { - free_page((unsigned long)page); - return count == len ? -EAGAIN : len - count; - } - - if (count > 0) { - set_bit(F_READBLOCK, &dev.flags); - if (wait_event_interruptible_timeout( - dev.readblock, - test_bit(F_READBLOCK, &dev.flags), - timeout) <= 0) - clear_bit(F_READING, &dev.flags); - if (signal_pending(current)) { - free_page((unsigned long)page); - return -EINTR; - } - } - } - free_page((unsigned long)page); - return len - count; -} - -static int dsp_write(const char __user *buf, size_t len) -{ - int count = len; - char *page = (char *)__get_free_page(GFP_KERNEL); - int timeout = get_play_delay_jiffies(DAP_BUFF_SIZE); - - if (!page) - return -ENOMEM; - - while (count > 0) { - int n, k; - unsigned long flags; - - k = PAGE_SIZE; - if (k > count) - k = count; - - if (copy_from_user(page, buf, k)) { - free_page((unsigned long)page); - return -EFAULT; - } - - /* Critical section: protect fifo in non-interrupt */ - spin_lock_irqsave(&dev.lock, flags); - n = msnd_fifo_write(&dev.DAPF, page, k); - spin_unlock_irqrestore(&dev.lock, flags); - buf += n; - count -= n; - - if (count && n == k) - continue; - - if (!test_bit(F_WRITING, &dev.flags) && (dev.mode & FMODE_WRITE)) { - dev.last_playbank = -1; - if (pack_DAPF_to_DAPQ(1) > 0) - set_bit(F_WRITING, &dev.flags); - } - - if (dev.play_ndelay) { - free_page((unsigned long)page); - return count == len ? -EAGAIN : len - count; - } - - if (count > 0) { - set_bit(F_WRITEBLOCK, &dev.flags); - wait_event_interruptible_timeout( - dev.writeblock, - test_bit(F_WRITEBLOCK, &dev.flags), - timeout); - if (signal_pending(current)) { - free_page((unsigned long)page); - return -EINTR; - } - } - } - - free_page((unsigned long)page); - return len - count; -} - -static ssize_t dev_read(struct file *file, char __user *buf, size_t count, loff_t *off) -{ - int minor = iminor(file_inode(file)); - if (minor == dev.dsp_minor) - return dsp_read(buf, count); - else - return -EINVAL; -} - -static ssize_t dev_write(struct file *file, const char __user *buf, size_t count, loff_t *off) -{ - int minor = iminor(file_inode(file)); - if (minor == dev.dsp_minor) - return dsp_write(buf, count); - else - return -EINVAL; -} - -static __inline__ void eval_dsp_msg(register WORD wMessage) -{ - switch (HIBYTE(wMessage)) { - case HIMT_PLAY_DONE: - if (dev.last_playbank == LOBYTE(wMessage) || !test_bit(F_WRITING, &dev.flags)) - break; - dev.last_playbank = LOBYTE(wMessage); - - if (pack_DAPF_to_DAPQ(0) <= 0) { - if (!test_bit(F_WRITEBLOCK, &dev.flags)) { - if (test_and_clear_bit(F_WRITEFLUSH, &dev.flags)) - wake_up_interruptible(&dev.writeflush); - } - clear_bit(F_WRITING, &dev.flags); - } - - if (test_and_clear_bit(F_WRITEBLOCK, &dev.flags)) - wake_up_interruptible(&dev.writeblock); - break; - - case HIMT_RECORD_DONE: - if (dev.last_recbank == LOBYTE(wMessage)) - break; - dev.last_recbank = LOBYTE(wMessage); - - pack_DARQ_to_DARF(dev.last_recbank); - - if (test_and_clear_bit(F_READBLOCK, &dev.flags)) - wake_up_interruptible(&dev.readblock); - break; - - case HIMT_DSP: - switch (LOBYTE(wMessage)) { -#ifndef MSND_CLASSIC - case HIDSP_PLAY_UNDER: -#endif - case HIDSP_INT_PLAY_UNDER: -/* printk(KERN_DEBUG LOGNAME ": Play underflow\n"); */ - clear_bit(F_WRITING, &dev.flags); - break; - - case HIDSP_INT_RECORD_OVER: -/* printk(KERN_DEBUG LOGNAME ": Record overflow\n"); */ - clear_bit(F_READING, &dev.flags); - break; - - default: -/* printk(KERN_DEBUG LOGNAME ": DSP message %d 0x%02x\n", - LOBYTE(wMessage), LOBYTE(wMessage)); */ - break; - } - break; - - case HIMT_MIDI_IN_UCHAR: - if (dev.midi_in_interrupt) - (*dev.midi_in_interrupt)(&dev); - break; - - default: -/* printk(KERN_DEBUG LOGNAME ": HIMT message %d 0x%02x\n", HIBYTE(wMessage), HIBYTE(wMessage)); */ - break; - } -} - -static irqreturn_t intr(int irq, void *dev_id) -{ - /* Send ack to DSP */ - msnd_inb(dev.io + HP_RXL); - - /* Evaluate queued DSP messages */ - while (readw(dev.DSPQ + JQS_wTail) != readw(dev.DSPQ + JQS_wHead)) { - register WORD wTmp; - - eval_dsp_msg(readw(dev.pwDSPQData + 2*readw(dev.DSPQ + JQS_wHead))); - - if ((wTmp = readw(dev.DSPQ + JQS_wHead) + 1) > readw(dev.DSPQ + JQS_wSize)) - writew(0, dev.DSPQ + JQS_wHead); - else - writew(wTmp, dev.DSPQ + JQS_wHead); - } - return IRQ_HANDLED; -} - -static const struct file_operations dev_fileops = { - .owner = THIS_MODULE, - .read = dev_read, - .write = dev_write, - .unlocked_ioctl = dev_ioctl, - .open = dev_open, - .release = dev_release, - .llseek = noop_llseek, -}; - -static int reset_dsp(void) -{ - int timeout = 100; - - msnd_outb(HPDSPRESET_ON, dev.io + HP_DSPR); - mdelay(1); -#ifndef MSND_CLASSIC - dev.info = msnd_inb(dev.io + HP_INFO); -#endif - msnd_outb(HPDSPRESET_OFF, dev.io + HP_DSPR); - mdelay(1); - while (timeout-- > 0) { - if (msnd_inb(dev.io + HP_CVR) == HP_CVR_DEF) - return 0; - mdelay(1); - } - printk(KERN_ERR LOGNAME ": Cannot reset DSP\n"); - - return -EIO; -} - -static int __init probe_multisound(void) -{ -#ifndef MSND_CLASSIC - char *xv, *rev = NULL; - char *pin = "Pinnacle", *fiji = "Fiji"; - char *pinfiji = "Pinnacle/Fiji"; -#endif - - if (!request_region(dev.io, dev.numio, "probing")) { - printk(KERN_ERR LOGNAME ": I/O port conflict\n"); - return -ENODEV; - } - - if (reset_dsp() < 0) { - release_region(dev.io, dev.numio); - return -ENODEV; - } - -#ifdef MSND_CLASSIC - dev.name = "Classic/Tahiti/Monterey"; - printk(KERN_INFO LOGNAME ": %s, " -#else - switch (dev.info >> 4) { - case 0xf: xv = "<= 1.15"; break; - case 0x1: xv = "1.18/1.2"; break; - case 0x2: xv = "1.3"; break; - case 0x3: xv = "1.4"; break; - default: xv = "unknown"; break; - } - - switch (dev.info & 0x7) { - case 0x0: rev = "I"; dev.name = pin; break; - case 0x1: rev = "F"; dev.name = pin; break; - case 0x2: rev = "G"; dev.name = pin; break; - case 0x3: rev = "H"; dev.name = pin; break; - case 0x4: rev = "E"; dev.name = fiji; break; - case 0x5: rev = "C"; dev.name = fiji; break; - case 0x6: rev = "D"; dev.name = fiji; break; - case 0x7: - rev = "A-B (Fiji) or A-E (Pinnacle)"; - dev.name = pinfiji; - break; - } - printk(KERN_INFO LOGNAME ": %s revision %s, Xilinx version %s, " -#endif /* MSND_CLASSIC */ - "I/O 0x%x-0x%x, IRQ %d, memory mapped to %p-%p\n", - dev.name, -#ifndef MSND_CLASSIC - rev, xv, -#endif - dev.io, dev.io + dev.numio - 1, - dev.irq, - dev.base, dev.base + 0x7fff); - - release_region(dev.io, dev.numio); - return 0; -} - -static int init_sma(void) -{ - static int initted; - WORD mastVolLeft, mastVolRight; - unsigned long flags; - -#ifdef MSND_CLASSIC - msnd_outb(dev.memid, dev.io + HP_MEMM); -#endif - msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS); - if (initted) { - mastVolLeft = readw(dev.SMA + SMA_wCurrMastVolLeft); - mastVolRight = readw(dev.SMA + SMA_wCurrMastVolRight); - } else - mastVolLeft = mastVolRight = 0; - memset_io(dev.base, 0, 0x8000); - - /* Critical section: bank 1 access */ - spin_lock_irqsave(&dev.lock, flags); - msnd_outb(HPBLKSEL_1, dev.io + HP_BLKS); - memset_io(dev.base, 0, 0x8000); - msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS); - spin_unlock_irqrestore(&dev.lock, flags); - - dev.pwDSPQData = (dev.base + DSPQ_DATA_BUFF); - dev.pwMODQData = (dev.base + MODQ_DATA_BUFF); - dev.pwMIDQData = (dev.base + MIDQ_DATA_BUFF); - - /* Motorola 56k shared memory base */ - dev.SMA = dev.base + SMA_STRUCT_START; - - /* Digital audio play queue */ - dev.DAPQ = dev.base + DAPQ_OFFSET; - msnd_init_queue(dev.DAPQ, DAPQ_DATA_BUFF, DAPQ_BUFF_SIZE); - - /* Digital audio record queue */ - dev.DARQ = dev.base + DARQ_OFFSET; - msnd_init_queue(dev.DARQ, DARQ_DATA_BUFF, DARQ_BUFF_SIZE); - - /* MIDI out queue */ - dev.MODQ = dev.base + MODQ_OFFSET; - msnd_init_queue(dev.MODQ, MODQ_DATA_BUFF, MODQ_BUFF_SIZE); - - /* MIDI in queue */ - dev.MIDQ = dev.base + MIDQ_OFFSET; - msnd_init_queue(dev.MIDQ, MIDQ_DATA_BUFF, MIDQ_BUFF_SIZE); - - /* DSP -> host message queue */ - dev.DSPQ = dev.base + DSPQ_OFFSET; - msnd_init_queue(dev.DSPQ, DSPQ_DATA_BUFF, DSPQ_BUFF_SIZE); - - /* Setup some DSP values */ -#ifndef MSND_CLASSIC - writew(1, dev.SMA + SMA_wCurrPlayFormat); - writew(dev.play_sample_size, dev.SMA + SMA_wCurrPlaySampleSize); - writew(dev.play_channels, dev.SMA + SMA_wCurrPlayChannels); - writew(dev.play_sample_rate, dev.SMA + SMA_wCurrPlaySampleRate); -#endif - writew(dev.play_sample_rate, dev.SMA + SMA_wCalFreqAtoD); - writew(mastVolLeft, dev.SMA + SMA_wCurrMastVolLeft); - writew(mastVolRight, dev.SMA + SMA_wCurrMastVolRight); -#ifndef MSND_CLASSIC - writel(0x00010000, dev.SMA + SMA_dwCurrPlayPitch); - writel(0x00000001, dev.SMA + SMA_dwCurrPlayRate); -#endif - writew(0x303, dev.SMA + SMA_wCurrInputTagBits); - - initted = 1; - - return 0; -} - -static int __init calibrate_adc(WORD srate) -{ - writew(srate, dev.SMA + SMA_wCalFreqAtoD); - if (dev.calibrate_signal == 0) - writew(readw(dev.SMA + SMA_wCurrHostStatusFlags) - | 0x0001, dev.SMA + SMA_wCurrHostStatusFlags); - else - writew(readw(dev.SMA + SMA_wCurrHostStatusFlags) - & ~0x0001, dev.SMA + SMA_wCurrHostStatusFlags); - if (msnd_send_word(&dev, 0, 0, HDEXAR_CAL_A_TO_D) == 0 && - chk_send_dsp_cmd(&dev, HDEX_AUX_REQ) == 0) { - schedule_timeout_interruptible(HZ / 3); - return 0; - } - printk(KERN_WARNING LOGNAME ": ADC calibration failed\n"); - - return -EIO; -} - -static int upload_dsp_code(void) -{ - int ret = 0; - - msnd_outb(HPBLKSEL_0, dev.io + HP_BLKS); -#ifndef HAVE_DSPCODEH - INITCODESIZE = mod_firmware_load(INITCODEFILE, &INITCODE); - if (!INITCODE) { - printk(KERN_ERR LOGNAME ": Error loading " INITCODEFILE); - return -EBUSY; - } - - PERMCODESIZE = mod_firmware_load(PERMCODEFILE, &PERMCODE); - if (!PERMCODE) { - printk(KERN_ERR LOGNAME ": Error loading " PERMCODEFILE); - vfree(INITCODE); - return -EBUSY; - } -#endif - memcpy_toio(dev.base, PERMCODE, PERMCODESIZE); - if (msnd_upload_host(&dev, INITCODE, INITCODESIZE) < 0) { - printk(KERN_WARNING LOGNAME ": Error uploading to DSP\n"); - ret = -ENODEV; - goto out; - } -#ifdef HAVE_DSPCODEH - printk(KERN_INFO LOGNAME ": DSP firmware uploaded (resident)\n"); -#else - printk(KERN_INFO LOGNAME ": DSP firmware uploaded\n"); -#endif - -out: -#ifndef HAVE_DSPCODEH - vfree(INITCODE); - vfree(PERMCODE); -#endif - - return ret; -} - -#ifdef MSND_CLASSIC -static void reset_proteus(void) -{ - msnd_outb(HPPRORESET_ON, dev.io + HP_PROR); - mdelay(TIME_PRO_RESET); - msnd_outb(HPPRORESET_OFF, dev.io + HP_PROR); - mdelay(TIME_PRO_RESET_DONE); -} -#endif - -static int initialize(void) -{ - int err, timeout; - -#ifdef MSND_CLASSIC - msnd_outb(HPWAITSTATE_0, dev.io + HP_WAIT); - msnd_outb(HPBITMODE_16, dev.io + HP_BITM); - - reset_proteus(); -#endif - if ((err = init_sma()) < 0) { - printk(KERN_WARNING LOGNAME ": Cannot initialize SMA\n"); - return err; - } - - if ((err = reset_dsp()) < 0) - return err; - - if ((err = upload_dsp_code()) < 0) { - printk(KERN_WARNING LOGNAME ": Cannot upload DSP code\n"); - return err; - } - - timeout = 200; - while (readw(dev.base)) { - mdelay(1); - if (!timeout--) { - printk(KERN_DEBUG LOGNAME ": DSP reset timeout\n"); - return -EIO; - } - } - - mixer_setup(); - - return 0; -} - -static int dsp_full_reset(void) -{ - int rv; - - if (test_bit(F_RESETTING, &dev.flags) || ++dev.nresets > 10) - return 0; - - set_bit(F_RESETTING, &dev.flags); - printk(KERN_INFO LOGNAME ": DSP reset\n"); - dsp_halt(NULL); /* Unconditionally halt */ - if ((rv = initialize())) - printk(KERN_WARNING LOGNAME ": DSP reset failed\n"); - force_recsrc(dev.recsrc); - dsp_open(NULL); - clear_bit(F_RESETTING, &dev.flags); - - return rv; -} - -static int __init attach_multisound(void) -{ - int err; - - if ((err = request_irq(dev.irq, intr, 0, dev.name, &dev)) < 0) { - printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", dev.irq); - return err; - } - if (request_region(dev.io, dev.numio, dev.name) == NULL) { - free_irq(dev.irq, &dev); - return -EBUSY; - } - - err = dsp_full_reset(); - if (err < 0) { - release_region(dev.io, dev.numio); - free_irq(dev.irq, &dev); - return err; - } - - if ((err = msnd_register(&dev)) < 0) { - printk(KERN_ERR LOGNAME ": Unable to register MultiSound\n"); - release_region(dev.io, dev.numio); - free_irq(dev.irq, &dev); - return err; - } - - if ((dev.dsp_minor = register_sound_dsp(&dev_fileops, -1)) < 0) { - printk(KERN_ERR LOGNAME ": Unable to register DSP operations\n"); - msnd_unregister(&dev); - release_region(dev.io, dev.numio); - free_irq(dev.irq, &dev); - return dev.dsp_minor; - } - - if ((dev.mixer_minor = register_sound_mixer(&dev_fileops, -1)) < 0) { - printk(KERN_ERR LOGNAME ": Unable to register mixer operations\n"); - unregister_sound_mixer(dev.mixer_minor); - msnd_unregister(&dev); - release_region(dev.io, dev.numio); - free_irq(dev.irq, &dev); - return dev.mixer_minor; - } - - dev.ext_midi_dev = dev.hdr_midi_dev = -1; - - disable_irq(dev.irq); - calibrate_adc(dev.play_sample_rate); -#ifndef MSND_CLASSIC - force_recsrc(SOUND_MASK_IMIX); -#endif - - return 0; -} - -static void __exit unload_multisound(void) -{ - release_region(dev.io, dev.numio); - free_irq(dev.irq, &dev); - unregister_sound_mixer(dev.mixer_minor); - unregister_sound_dsp(dev.dsp_minor); - msnd_unregister(&dev); -} - -#ifndef MSND_CLASSIC - -/* Pinnacle/Fiji Logical Device Configuration */ - -static int __init msnd_write_cfg(int cfg, int reg, int value) -{ - msnd_outb(reg, cfg); - msnd_outb(value, cfg + 1); - if (value != msnd_inb(cfg + 1)) { - printk(KERN_ERR LOGNAME ": msnd_write_cfg: I/O error\n"); - return -EIO; - } - return 0; -} - -static int __init msnd_write_cfg_io0(int cfg, int num, WORD io) -{ - if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) - return -EIO; - if (msnd_write_cfg(cfg, IREG_IO0_BASEHI, HIBYTE(io))) - return -EIO; - if (msnd_write_cfg(cfg, IREG_IO0_BASELO, LOBYTE(io))) - return -EIO; - return 0; -} - -static int __init msnd_write_cfg_io1(int cfg, int num, WORD io) -{ - if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) - return -EIO; - if (msnd_write_cfg(cfg, IREG_IO1_BASEHI, HIBYTE(io))) - return -EIO; - if (msnd_write_cfg(cfg, IREG_IO1_BASELO, LOBYTE(io))) - return -EIO; - return 0; -} - -static int __init msnd_write_cfg_irq(int cfg, int num, WORD irq) -{ - if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) - return -EIO; - if (msnd_write_cfg(cfg, IREG_IRQ_NUMBER, LOBYTE(irq))) - return -EIO; - if (msnd_write_cfg(cfg, IREG_IRQ_TYPE, IRQTYPE_EDGE)) - return -EIO; - return 0; -} - -static int __init msnd_write_cfg_mem(int cfg, int num, int mem) -{ - WORD wmem; - - mem >>= 8; - mem &= 0xfff; - wmem = (WORD)mem; - if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) - return -EIO; - if (msnd_write_cfg(cfg, IREG_MEMBASEHI, HIBYTE(wmem))) - return -EIO; - if (msnd_write_cfg(cfg, IREG_MEMBASELO, LOBYTE(wmem))) - return -EIO; - if (wmem && msnd_write_cfg(cfg, IREG_MEMCONTROL, (MEMTYPE_HIADDR | MEMTYPE_16BIT))) - return -EIO; - return 0; -} - -static int __init msnd_activate_logical(int cfg, int num) -{ - if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) - return -EIO; - if (msnd_write_cfg(cfg, IREG_ACTIVATE, LD_ACTIVATE)) - return -EIO; - return 0; -} - -static int __init msnd_write_cfg_logical(int cfg, int num, WORD io0, WORD io1, WORD irq, int mem) -{ - if (msnd_write_cfg(cfg, IREG_LOGDEVICE, num)) - return -EIO; - if (msnd_write_cfg_io0(cfg, num, io0)) - return -EIO; - if (msnd_write_cfg_io1(cfg, num, io1)) - return -EIO; - if (msnd_write_cfg_irq(cfg, num, irq)) - return -EIO; - if (msnd_write_cfg_mem(cfg, num, mem)) - return -EIO; - if (msnd_activate_logical(cfg, num)) - return -EIO; - return 0; -} - -typedef struct msnd_pinnacle_cfg_device { - WORD io0, io1, irq; - int mem; -} msnd_pinnacle_cfg_t[4]; - -static int __init msnd_pinnacle_cfg_devices(int cfg, int reset, msnd_pinnacle_cfg_t device) -{ - int i; - - /* Reset devices if told to */ - if (reset) { - printk(KERN_INFO LOGNAME ": Resetting all devices\n"); - for (i = 0; i < 4; ++i) - if (msnd_write_cfg_logical(cfg, i, 0, 0, 0, 0)) - return -EIO; - } - - /* Configure specified devices */ - for (i = 0; i < 4; ++i) { - - switch (i) { - case 0: /* DSP */ - if (!(device[i].io0 && device[i].irq && device[i].mem)) - continue; - break; - case 1: /* MPU */ - if (!(device[i].io0 && device[i].irq)) - continue; - printk(KERN_INFO LOGNAME - ": Configuring MPU to I/O 0x%x IRQ %d\n", - device[i].io0, device[i].irq); - break; - case 2: /* IDE */ - if (!(device[i].io0 && device[i].io1 && device[i].irq)) - continue; - printk(KERN_INFO LOGNAME - ": Configuring IDE to I/O 0x%x, 0x%x IRQ %d\n", - device[i].io0, device[i].io1, device[i].irq); - break; - case 3: /* Joystick */ - if (!(device[i].io0)) - continue; - printk(KERN_INFO LOGNAME - ": Configuring joystick to I/O 0x%x\n", - device[i].io0); - break; - } - - /* Configure the device */ - if (msnd_write_cfg_logical(cfg, i, device[i].io0, device[i].io1, device[i].irq, device[i].mem)) - return -EIO; - } - - return 0; -} -#endif - -#ifdef MODULE -MODULE_AUTHOR ("Andrew Veliath "); -MODULE_DESCRIPTION ("Turtle Beach " LONGNAME " Linux Driver"); -MODULE_LICENSE("GPL"); - -static int io __initdata = -1; -static int irq __initdata = -1; -static int mem __initdata = -1; -static int write_ndelay __initdata = -1; - -#ifndef MSND_CLASSIC -/* Pinnacle/Fiji non-PnP Config Port */ -static int cfg __initdata = -1; - -/* Extra Peripheral Configuration */ -static int reset __initdata = 0; -static int mpu_io __initdata = 0; -static int mpu_irq __initdata = 0; -static int ide_io0 __initdata = 0; -static int ide_io1 __initdata = 0; -static int ide_irq __initdata = 0; -static int joystick_io __initdata = 0; - -/* If we have the digital daugherboard... */ -static bool digital __initdata = false; -#endif - -static int fifosize __initdata = DEFFIFOSIZE; -static int calibrate_signal __initdata = 0; - -#else /* not a module */ - -static int write_ndelay __initdata = -1; - -#ifdef MSND_CLASSIC -static int io __initdata = CONFIG_MSNDCLAS_IO; -static int irq __initdata = CONFIG_MSNDCLAS_IRQ; -static int mem __initdata = CONFIG_MSNDCLAS_MEM; -#else /* Pinnacle/Fiji */ - -static int io __initdata = CONFIG_MSNDPIN_IO; -static int irq __initdata = CONFIG_MSNDPIN_IRQ; -static int mem __initdata = CONFIG_MSNDPIN_MEM; - -/* Pinnacle/Fiji non-PnP Config Port */ -#ifdef CONFIG_MSNDPIN_NONPNP -# ifndef CONFIG_MSNDPIN_CFG -# define CONFIG_MSNDPIN_CFG 0x250 -# endif -#else -# ifdef CONFIG_MSNDPIN_CFG -# undef CONFIG_MSNDPIN_CFG -# endif -# define CONFIG_MSNDPIN_CFG -1 -#endif -static int cfg __initdata = CONFIG_MSNDPIN_CFG; -/* If not a module, we don't need to bother with reset=1 */ -static int reset; - -/* Extra Peripheral Configuration (Default: Disable) */ -#ifndef CONFIG_MSNDPIN_MPU_IO -# define CONFIG_MSNDPIN_MPU_IO 0 -#endif -static int mpu_io __initdata = CONFIG_MSNDPIN_MPU_IO; - -#ifndef CONFIG_MSNDPIN_MPU_IRQ -# define CONFIG_MSNDPIN_MPU_IRQ 0 -#endif -static int mpu_irq __initdata = CONFIG_MSNDPIN_MPU_IRQ; - -#ifndef CONFIG_MSNDPIN_IDE_IO0 -# define CONFIG_MSNDPIN_IDE_IO0 0 -#endif -static int ide_io0 __initdata = CONFIG_MSNDPIN_IDE_IO0; - -#ifndef CONFIG_MSNDPIN_IDE_IO1 -# define CONFIG_MSNDPIN_IDE_IO1 0 -#endif -static int ide_io1 __initdata = CONFIG_MSNDPIN_IDE_IO1; - -#ifndef CONFIG_MSNDPIN_IDE_IRQ -# define CONFIG_MSNDPIN_IDE_IRQ 0 -#endif -static int ide_irq __initdata = CONFIG_MSNDPIN_IDE_IRQ; - -#ifndef CONFIG_MSNDPIN_JOYSTICK_IO -# define CONFIG_MSNDPIN_JOYSTICK_IO 0 -#endif -static int joystick_io __initdata = CONFIG_MSNDPIN_JOYSTICK_IO; - -/* Have SPDIF (Digital) Daughterboard */ -#ifndef CONFIG_MSNDPIN_DIGITAL -# define CONFIG_MSNDPIN_DIGITAL 0 -#endif -static bool digital __initdata = CONFIG_MSNDPIN_DIGITAL; - -#endif /* MSND_CLASSIC */ - -#ifndef CONFIG_MSND_FIFOSIZE -# define CONFIG_MSND_FIFOSIZE DEFFIFOSIZE -#endif -static int fifosize __initdata = CONFIG_MSND_FIFOSIZE; - -#ifndef CONFIG_MSND_CALSIGNAL -# define CONFIG_MSND_CALSIGNAL 0 -#endif -static int -calibrate_signal __initdata = CONFIG_MSND_CALSIGNAL; -#endif /* MODULE */ - -module_param_hw (io, int, ioport, 0); -module_param_hw (irq, int, irq, 0); -module_param_hw (mem, int, iomem, 0); -module_param (write_ndelay, int, 0); -module_param (fifosize, int, 0); -module_param (calibrate_signal, int, 0); -#ifndef MSND_CLASSIC -module_param (digital, bool, 0); -module_param_hw (cfg, int, ioport, 0); -module_param (reset, int, 0); -module_param_hw (mpu_io, int, ioport, 0); -module_param_hw (mpu_irq, int, irq, 0); -module_param_hw (ide_io0, int, ioport, 0); -module_param_hw (ide_io1, int, ioport, 0); -module_param_hw (ide_irq, int, irq, 0); -module_param_hw (joystick_io, int, ioport, 0); -#endif - -static int __init msnd_init(void) -{ - int err; -#ifndef MSND_CLASSIC - static msnd_pinnacle_cfg_t pinnacle_devs; -#endif /* MSND_CLASSIC */ - - printk(KERN_INFO LOGNAME ": Turtle Beach " LONGNAME " Linux Driver Version " - VERSION ", Copyright (C) 1998 Andrew Veliath\n"); - - if (io == -1 || irq == -1 || mem == -1) - printk(KERN_WARNING LOGNAME ": io, irq and mem must be set\n"); - -#ifdef MSND_CLASSIC - if (io == -1 || - !(io == 0x290 || - io == 0x260 || - io == 0x250 || - io == 0x240 || - io == 0x230 || - io == 0x220 || - io == 0x210 || - io == 0x3e0)) { - printk(KERN_ERR LOGNAME ": \"io\" - DSP I/O base must be set to 0x210, 0x220, 0x230, 0x240, 0x250, 0x260, 0x290, or 0x3E0\n"); - return -EINVAL; - } -#else - if (io == -1 || - io < 0x100 || - io > 0x3e0 || - (io % 0x10) != 0) { - printk(KERN_ERR LOGNAME ": \"io\" - DSP I/O base must within the range 0x100 to 0x3E0 and must be evenly divisible by 0x10\n"); - return -EINVAL; - } -#endif /* MSND_CLASSIC */ - - if (irq == -1 || - !(irq == 5 || - irq == 7 || - irq == 9 || - irq == 10 || - irq == 11 || - irq == 12)) { - printk(KERN_ERR LOGNAME ": \"irq\" - must be set to 5, 7, 9, 10, 11 or 12\n"); - return -EINVAL; - } - - if (mem == -1 || - !(mem == 0xb0000 || - mem == 0xc8000 || - mem == 0xd0000 || - mem == 0xd8000 || - mem == 0xe0000 || - mem == 0xe8000)) { - printk(KERN_ERR LOGNAME ": \"mem\" - must be set to " - "0xb0000, 0xc8000, 0xd0000, 0xd8000, 0xe0000 or 0xe8000\n"); - return -EINVAL; - } - -#ifdef MSND_CLASSIC - switch (irq) { - case 5: dev.irqid = HPIRQ_5; break; - case 7: dev.irqid = HPIRQ_7; break; - case 9: dev.irqid = HPIRQ_9; break; - case 10: dev.irqid = HPIRQ_10; break; - case 11: dev.irqid = HPIRQ_11; break; - case 12: dev.irqid = HPIRQ_12; break; - } - - switch (mem) { - case 0xb0000: dev.memid = HPMEM_B000; break; - case 0xc8000: dev.memid = HPMEM_C800; break; - case 0xd0000: dev.memid = HPMEM_D000; break; - case 0xd8000: dev.memid = HPMEM_D800; break; - case 0xe0000: dev.memid = HPMEM_E000; break; - case 0xe8000: dev.memid = HPMEM_E800; break; - } -#else - if (cfg == -1) { - printk(KERN_INFO LOGNAME ": Assuming PnP mode\n"); - } else if (cfg != 0x250 && cfg != 0x260 && cfg != 0x270) { - printk(KERN_INFO LOGNAME ": Config port must be 0x250, 0x260 or 0x270 (or unspecified for PnP mode)\n"); - return -EINVAL; - } else { - printk(KERN_INFO LOGNAME ": Non-PnP mode: configuring at port 0x%x\n", cfg); - - /* DSP */ - pinnacle_devs[0].io0 = io; - pinnacle_devs[0].irq = irq; - pinnacle_devs[0].mem = mem; - - /* The following are Pinnacle specific */ - - /* MPU */ - pinnacle_devs[1].io0 = mpu_io; - pinnacle_devs[1].irq = mpu_irq; - - /* IDE */ - pinnacle_devs[2].io0 = ide_io0; - pinnacle_devs[2].io1 = ide_io1; - pinnacle_devs[2].irq = ide_irq; - - /* Joystick */ - pinnacle_devs[3].io0 = joystick_io; - - if (!request_region(cfg, 2, "Pinnacle/Fiji Config")) { - printk(KERN_ERR LOGNAME ": Config port 0x%x conflict\n", cfg); - return -EIO; - } - - if (msnd_pinnacle_cfg_devices(cfg, reset, pinnacle_devs)) { - printk(KERN_ERR LOGNAME ": Device configuration error\n"); - release_region(cfg, 2); - return -EIO; - } - release_region(cfg, 2); - } -#endif /* MSND_CLASSIC */ - - if (fifosize < 16) - fifosize = 16; - - if (fifosize > 1024) - fifosize = 1024; - - set_default_audio_parameters(); -#ifdef MSND_CLASSIC - dev.type = msndClassic; -#else - dev.type = msndPinnacle; -#endif - dev.io = io; - dev.numio = DSP_NUMIO; - dev.irq = irq; - dev.base = ioremap(mem, 0x8000); - dev.fifosize = fifosize * 1024; - dev.calibrate_signal = calibrate_signal ? 1 : 0; - dev.recsrc = 0; - dev.dspq_data_buff = DSPQ_DATA_BUFF; - dev.dspq_buff_size = DSPQ_BUFF_SIZE; - if (write_ndelay == -1) - write_ndelay = CONFIG_MSND_WRITE_NDELAY; - if (write_ndelay) - clear_bit(F_DISABLE_WRITE_NDELAY, &dev.flags); - else - set_bit(F_DISABLE_WRITE_NDELAY, &dev.flags); -#ifndef MSND_CLASSIC - if (digital) - set_bit(F_HAVEDIGITAL, &dev.flags); -#endif - init_waitqueue_head(&dev.writeblock); - init_waitqueue_head(&dev.readblock); - init_waitqueue_head(&dev.writeflush); - msnd_fifo_init(&dev.DAPF); - msnd_fifo_init(&dev.DARF); - spin_lock_init(&dev.lock); - printk(KERN_INFO LOGNAME ": %u byte audio FIFOs (x2)\n", dev.fifosize); - if ((err = msnd_fifo_alloc(&dev.DAPF, dev.fifosize)) < 0) { - printk(KERN_ERR LOGNAME ": Couldn't allocate write FIFO\n"); - return err; - } - - if ((err = msnd_fifo_alloc(&dev.DARF, dev.fifosize)) < 0) { - printk(KERN_ERR LOGNAME ": Couldn't allocate read FIFO\n"); - msnd_fifo_free(&dev.DAPF); - return err; - } - - if ((err = probe_multisound()) < 0) { - printk(KERN_ERR LOGNAME ": Probe failed\n"); - msnd_fifo_free(&dev.DAPF); - msnd_fifo_free(&dev.DARF); - return err; - } - - if ((err = attach_multisound()) < 0) { - printk(KERN_ERR LOGNAME ": Attach failed\n"); - msnd_fifo_free(&dev.DAPF); - msnd_fifo_free(&dev.DARF); - return err; - } - - return 0; -} - -static void __exit msdn_cleanup(void) -{ - unload_multisound(); - msnd_fifo_free(&dev.DAPF); - msnd_fifo_free(&dev.DARF); -} - -module_init(msnd_init); -module_exit(msdn_cleanup); diff --git a/sound/oss/msnd_pinnacle.h b/sound/oss/msnd_pinnacle.h deleted file mode 100644 index c18d66cbbe3f..000000000000 --- a/sound/oss/msnd_pinnacle.h +++ /dev/null @@ -1,246 +0,0 @@ -/********************************************************************* - * - * msnd_pinnacle.h - * - * Turtle Beach MultiSound Sound Card Driver for Linux - * - * Some parts of this header file were derived from the Turtle Beach - * MultiSound Driver Development Kit. - * - * Copyright (C) 1998 Andrew Veliath - * Copyright (C) 1993 Turtle Beach Systems, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - ********************************************************************/ -#ifndef __MSND_PINNACLE_H -#define __MSND_PINNACLE_H - - -#define DSP_NUMIO 0x08 - -#define IREG_LOGDEVICE 0x07 -#define IREG_ACTIVATE 0x30 -#define LD_ACTIVATE 0x01 -#define LD_DISACTIVATE 0x00 -#define IREG_EECONTROL 0x3F -#define IREG_MEMBASEHI 0x40 -#define IREG_MEMBASELO 0x41 -#define IREG_MEMCONTROL 0x42 -#define IREG_MEMRANGEHI 0x43 -#define IREG_MEMRANGELO 0x44 -#define MEMTYPE_8BIT 0x00 -#define MEMTYPE_16BIT 0x02 -#define MEMTYPE_RANGE 0x00 -#define MEMTYPE_HIADDR 0x01 -#define IREG_IO0_BASEHI 0x60 -#define IREG_IO0_BASELO 0x61 -#define IREG_IO1_BASEHI 0x62 -#define IREG_IO1_BASELO 0x63 -#define IREG_IRQ_NUMBER 0x70 -#define IREG_IRQ_TYPE 0x71 -#define IRQTYPE_HIGH 0x02 -#define IRQTYPE_LOW 0x00 -#define IRQTYPE_LEVEL 0x01 -#define IRQTYPE_EDGE 0x00 - -#define HP_DSPR 0x04 -#define HP_BLKS 0x04 - -#define HPDSPRESET_OFF 2 -#define HPDSPRESET_ON 0 - -#define HPBLKSEL_0 2 -#define HPBLKSEL_1 3 - -#define HIMT_DAT_OFF 0x03 - -#define HIDSP_PLAY_UNDER 0x00 -#define HIDSP_INT_PLAY_UNDER 0x01 -#define HIDSP_SSI_TX_UNDER 0x02 -#define HIDSP_RECQ_OVERFLOW 0x08 -#define HIDSP_INT_RECORD_OVER 0x09 -#define HIDSP_SSI_RX_OVERFLOW 0x0a - -#define HIDSP_MIDI_IN_OVER 0x10 - -#define HIDSP_MIDI_FRAME_ERR 0x11 -#define HIDSP_MIDI_PARITY_ERR 0x12 -#define HIDSP_MIDI_OVERRUN_ERR 0x13 - -#define HIDSP_INPUT_CLIPPING 0x20 -#define HIDSP_MIX_CLIPPING 0x30 -#define HIDSP_DAT_IN_OFF 0x21 - -#define HDEXAR_SET_ANA_IN 0 -#define HDEXAR_CLEAR_PEAKS 1 -#define HDEXAR_IN_SET_POTS 2 -#define HDEXAR_AUX_SET_POTS 3 -#define HDEXAR_CAL_A_TO_D 4 -#define HDEXAR_RD_EXT_DSP_BITS 5 - -#define HDEXAR_SET_SYNTH_IN 4 -#define HDEXAR_READ_DAT_IN 5 -#define HDEXAR_MIC_SET_POTS 6 -#define HDEXAR_SET_DAT_IN 7 - -#define HDEXAR_SET_SYNTH_48 8 -#define HDEXAR_SET_SYNTH_44 9 - -#define TIME_PRO_RESET_DONE 0x028A -#define TIME_PRO_SYSEX 0x001E -#define TIME_PRO_RESET 0x0032 - -#define AGND 0x01 -#define SIGNAL 0x02 - -#define EXT_DSP_BIT_DCAL 0x0001 -#define EXT_DSP_BIT_MIDI_CON 0x0002 - -#define BUFFSIZE 0x8000 -#define HOSTQ_SIZE 0x40 - -#define SRAM_CNTL_START 0x7F00 -#define SMA_STRUCT_START 0x7F40 - -#define DAP_BUFF_SIZE 0x2400 -#define DAR_BUFF_SIZE 0x2000 - -#define DAPQ_STRUCT_SIZE 0x10 -#define DARQ_STRUCT_SIZE 0x10 -#define DAPQ_BUFF_SIZE (3 * 0x10) -#define DARQ_BUFF_SIZE (3 * 0x10) -#define MODQ_BUFF_SIZE 0x400 -#define MIDQ_BUFF_SIZE 0x800 -#define DSPQ_BUFF_SIZE 0x5A0 - -#define DAPQ_DATA_BUFF 0x6C00 -#define DARQ_DATA_BUFF 0x6C30 -#define MODQ_DATA_BUFF 0x6C60 -#define MIDQ_DATA_BUFF 0x7060 -#define DSPQ_DATA_BUFF 0x7860 - -#define DAPQ_OFFSET SRAM_CNTL_START -#define DARQ_OFFSET (SRAM_CNTL_START + 0x08) -#define MODQ_OFFSET (SRAM_CNTL_START + 0x10) -#define MIDQ_OFFSET (SRAM_CNTL_START + 0x18) -#define DSPQ_OFFSET (SRAM_CNTL_START + 0x20) - -#define MOP_WAVEHDR 0 -#define MOP_EXTOUT 1 -#define MOP_HWINIT 0xfe -#define MOP_NONE 0xff -#define MOP_MAX 1 - -#define MIP_EXTIN 0 -#define MIP_WAVEHDR 1 -#define MIP_HWINIT 0xfe -#define MIP_MAX 1 - -/* Pinnacle/Fiji SMA Common Data */ -#define SMA_wCurrPlayBytes 0x0000 -#define SMA_wCurrRecordBytes 0x0002 -#define SMA_wCurrPlayVolLeft 0x0004 -#define SMA_wCurrPlayVolRight 0x0006 -#define SMA_wCurrInVolLeft 0x0008 -#define SMA_wCurrInVolRight 0x000a -#define SMA_wCurrMHdrVolLeft 0x000c -#define SMA_wCurrMHdrVolRight 0x000e -#define SMA_dwCurrPlayPitch 0x0010 -#define SMA_dwCurrPlayRate 0x0014 -#define SMA_wCurrMIDIIOPatch 0x0018 -#define SMA_wCurrPlayFormat 0x001a -#define SMA_wCurrPlaySampleSize 0x001c -#define SMA_wCurrPlayChannels 0x001e -#define SMA_wCurrPlaySampleRate 0x0020 -#define SMA_wCurrRecordFormat 0x0022 -#define SMA_wCurrRecordSampleSize 0x0024 -#define SMA_wCurrRecordChannels 0x0026 -#define SMA_wCurrRecordSampleRate 0x0028 -#define SMA_wCurrDSPStatusFlags 0x002a -#define SMA_wCurrHostStatusFlags 0x002c -#define SMA_wCurrInputTagBits 0x002e -#define SMA_wCurrLeftPeak 0x0030 -#define SMA_wCurrRightPeak 0x0032 -#define SMA_bMicPotPosLeft 0x0034 -#define SMA_bMicPotPosRight 0x0035 -#define SMA_bMicPotMaxLeft 0x0036 -#define SMA_bMicPotMaxRight 0x0037 -#define SMA_bInPotPosLeft 0x0038 -#define SMA_bInPotPosRight 0x0039 -#define SMA_bAuxPotPosLeft 0x003a -#define SMA_bAuxPotPosRight 0x003b -#define SMA_bInPotMaxLeft 0x003c -#define SMA_bInPotMaxRight 0x003d -#define SMA_bAuxPotMaxLeft 0x003e -#define SMA_bAuxPotMaxRight 0x003f -#define SMA_bInPotMaxMethod 0x0040 -#define SMA_bAuxPotMaxMethod 0x0041 -#define SMA_wCurrMastVolLeft 0x0042 -#define SMA_wCurrMastVolRight 0x0044 -#define SMA_wCalFreqAtoD 0x0046 -#define SMA_wCurrAuxVolLeft 0x0048 -#define SMA_wCurrAuxVolRight 0x004a -#define SMA_wCurrPlay1VolLeft 0x004c -#define SMA_wCurrPlay1VolRight 0x004e -#define SMA_wCurrPlay2VolLeft 0x0050 -#define SMA_wCurrPlay2VolRight 0x0052 -#define SMA_wCurrPlay3VolLeft 0x0054 -#define SMA_wCurrPlay3VolRight 0x0056 -#define SMA_wCurrPlay4VolLeft 0x0058 -#define SMA_wCurrPlay4VolRight 0x005a -#define SMA_wCurrPlay1PeakLeft 0x005c -#define SMA_wCurrPlay1PeakRight 0x005e -#define SMA_wCurrPlay2PeakLeft 0x0060 -#define SMA_wCurrPlay2PeakRight 0x0062 -#define SMA_wCurrPlay3PeakLeft 0x0064 -#define SMA_wCurrPlay3PeakRight 0x0066 -#define SMA_wCurrPlay4PeakLeft 0x0068 -#define SMA_wCurrPlay4PeakRight 0x006a -#define SMA_wCurrPlayPeakLeft 0x006c -#define SMA_wCurrPlayPeakRight 0x006e -#define SMA_wCurrDATSR 0x0070 -#define SMA_wCurrDATRXCHNL 0x0072 -#define SMA_wCurrDATTXCHNL 0x0074 -#define SMA_wCurrDATRXRate 0x0076 -#define SMA_dwDSPPlayCount 0x0078 -#define SMA__size 0x007c - -#ifdef HAVE_DSPCODEH -# include "pndsperm.c" -# include "pndspini.c" -# define PERMCODE pndsperm -# define INITCODE pndspini -# define PERMCODESIZE sizeof(pndsperm) -# define INITCODESIZE sizeof(pndspini) -#else -# ifndef CONFIG_MSNDPIN_INIT_FILE -# define CONFIG_MSNDPIN_INIT_FILE \ - "/etc/sound/pndspini.bin" -# endif -# ifndef CONFIG_MSNDPIN_PERM_FILE -# define CONFIG_MSNDPIN_PERM_FILE \ - "/etc/sound/pndsperm.bin" -# endif -# define PERMCODEFILE CONFIG_MSNDPIN_PERM_FILE -# define INITCODEFILE CONFIG_MSNDPIN_INIT_FILE -# define PERMCODE dspini -# define INITCODE permini -# define PERMCODESIZE sizeof_dspini -# define INITCODESIZE sizeof_permini -#endif -#define LONGNAME "MultiSound (Pinnacle/Fiji)" - -#endif /* __MSND_PINNACLE_H */ diff --git a/sound/oss/opl3.c b/sound/oss/opl3.c deleted file mode 100644 index f0f5b5be6314..000000000000 --- a/sound/oss/opl3.c +++ /dev/null @@ -1,1255 +0,0 @@ -/* - * sound/oss/opl3.c - * - * A low level driver for Yamaha YM3812 and OPL-3 -chips - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * Changes - * Thomas Sailer ioctl code reworked (vmalloc/vfree removed) - * Alan Cox modularisation, fixed sound_mem allocs. - * Christoph Hellwig Adapted to module_init/module_exit - * Arnaldo C. de Melo get rid of check_region, use request_region for - * OPL4, release it on exit, some cleanups. - * - * Status - * Believed to work. Badly needs rewriting a bit to support multiple - * OPL3 devices. - */ - -#include -#include -#include -#include - -/* - * Major improvements to the FM handling 30AUG92 by Rob Hooft, - * hooft@chem.ruu.nl - */ - -#include "sound_config.h" - -#include "opl3_hw.h" - -#define MAX_VOICE 18 -#define OFFS_4OP 11 - -struct voice_info -{ - unsigned char keyon_byte; - long bender; - long bender_range; - unsigned long orig_freq; - unsigned long current_freq; - int volume; - int mode; - int panning; /* 0xffff means not set */ -}; - -struct opl_devinfo -{ - int base; - int left_io, right_io; - int nr_voice; - int lv_map[MAX_VOICE]; - - struct voice_info voc[MAX_VOICE]; - struct voice_alloc_info *v_alloc; - struct channel_info *chn_info; - - struct sbi_instrument i_map[SBFM_MAXINSTR]; - struct sbi_instrument *act_i[MAX_VOICE]; - - struct synth_info fm_info; - - int busy; - int model; - unsigned char cmask; - - int is_opl4; -}; - -static struct opl_devinfo *devc = NULL; - -static int detected_model; - -static int store_instr(int instr_no, struct sbi_instrument *instr); -static void freq_to_fnum(int freq, int *block, int *fnum); -static void opl3_command(int io_addr, unsigned int addr, unsigned int val); -static int opl3_kill_note(int dev, int voice, int note, int velocity); - -static void enter_4op_mode(void) -{ - int i; - static int v4op[MAX_VOICE] = { - 0, 1, 2, 9, 10, 11, 6, 7, 8, 15, 16, 17 - }; - - devc->cmask = 0x3f; /* Connect all possible 4 OP voice operators */ - opl3_command(devc->right_io, CONNECTION_SELECT_REGISTER, 0x3f); - - for (i = 0; i < 3; i++) - pv_map[i].voice_mode = 4; - for (i = 3; i < 6; i++) - pv_map[i].voice_mode = 0; - - for (i = 9; i < 12; i++) - pv_map[i].voice_mode = 4; - for (i = 12; i < 15; i++) - pv_map[i].voice_mode = 0; - - for (i = 0; i < 12; i++) - devc->lv_map[i] = v4op[i]; - devc->v_alloc->max_voice = devc->nr_voice = 12; -} - -static int opl3_ioctl(int dev, unsigned int cmd, void __user * arg) -{ - struct sbi_instrument ins; - - switch (cmd) { - case SNDCTL_FM_LOAD_INSTR: - printk(KERN_WARNING "Warning: Obsolete ioctl(SNDCTL_FM_LOAD_INSTR) used. Fix the program.\n"); - if (copy_from_user(&ins, arg, sizeof(ins))) - return -EFAULT; - if (ins.channel < 0 || ins.channel >= SBFM_MAXINSTR) { - printk(KERN_WARNING "FM Error: Invalid instrument number %d\n", ins.channel); - return -EINVAL; - } - return store_instr(ins.channel, &ins); - - case SNDCTL_SYNTH_INFO: - devc->fm_info.nr_voices = (devc->nr_voice == 12) ? 6 : devc->nr_voice; - if (copy_to_user(arg, &devc->fm_info, sizeof(devc->fm_info))) - return -EFAULT; - return 0; - - case SNDCTL_SYNTH_MEMAVL: - return 0x7fffffff; - - case SNDCTL_FM_4OP_ENABLE: - if (devc->model == 2) - enter_4op_mode(); - return 0; - - default: - return -EINVAL; - } -} - -static int opl3_detect(int ioaddr) -{ - /* - * This function returns 1 if the FM chip is present at the given I/O port - * The detection algorithm plays with the timer built in the FM chip and - * looks for a change in the status register. - * - * Note! The timers of the FM chip are not connected to AdLib (and compatible) - * boards. - * - * Note2! The chip is initialized if detected. - */ - - unsigned char stat1, signature; - int i; - - if (devc != NULL) - { - printk(KERN_ERR "opl3: Only one OPL3 supported.\n"); - return 0; - } - - devc = kzalloc(sizeof(*devc), GFP_KERNEL); - - if (devc == NULL) - { - printk(KERN_ERR "opl3: Can't allocate memory for the device control " - "structure \n "); - return 0; - } - - strcpy(devc->fm_info.name, "OPL2"); - - if (!request_region(ioaddr, 4, devc->fm_info.name)) { - printk(KERN_WARNING "opl3: I/O port 0x%x already in use\n", ioaddr); - goto cleanup_devc; - } - - devc->base = ioaddr; - - /* Reset timers 1 and 2 */ - opl3_command(ioaddr, TIMER_CONTROL_REGISTER, TIMER1_MASK | TIMER2_MASK); - - /* Reset the IRQ of the FM chip */ - opl3_command(ioaddr, TIMER_CONTROL_REGISTER, IRQ_RESET); - - signature = stat1 = inb(ioaddr); /* Status register */ - - if (signature != 0x00 && signature != 0x06 && signature != 0x02 && - signature != 0x0f) - { - MDB(printk(KERN_INFO "OPL3 not detected %x\n", signature)); - goto cleanup_region; - } - - if (signature == 0x06) /* OPL2 */ - { - detected_model = 2; - } - else if (signature == 0x00 || signature == 0x0f) /* OPL3 or OPL4 */ - { - unsigned char tmp; - - detected_model = 3; - - /* - * Detect availability of OPL4 (_experimental_). Works probably - * only after a cold boot. In addition the OPL4 port - * of the chip may not be connected to the PC bus at all. - */ - - opl3_command(ioaddr + 2, OPL3_MODE_REGISTER, 0x00); - opl3_command(ioaddr + 2, OPL3_MODE_REGISTER, OPL3_ENABLE | OPL4_ENABLE); - - if ((tmp = inb(ioaddr)) == 0x02) /* Have a OPL4 */ - { - detected_model = 4; - } - - if (request_region(ioaddr - 8, 2, "OPL4")) /* OPL4 port was free */ - { - int tmp; - - outb((0x02), ioaddr - 8); /* Select OPL4 ID register */ - udelay(10); - tmp = inb(ioaddr - 7); /* Read it */ - udelay(10); - - if (tmp == 0x20) /* OPL4 should return 0x20 here */ - { - detected_model = 4; - outb((0xF8), ioaddr - 8); /* Select OPL4 FM mixer control */ - udelay(10); - outb((0x1B), ioaddr - 7); /* Write value */ - udelay(10); - } - else - { /* release OPL4 port */ - release_region(ioaddr - 8, 2); - detected_model = 3; - } - } - opl3_command(ioaddr + 2, OPL3_MODE_REGISTER, 0); - } - for (i = 0; i < 9; i++) - opl3_command(ioaddr, KEYON_BLOCK + i, 0); /* - * Note off - */ - - opl3_command(ioaddr, TEST_REGISTER, ENABLE_WAVE_SELECT); - opl3_command(ioaddr, PERCOSSION_REGISTER, 0x00); /* - * Melodic mode. - */ - return 1; -cleanup_region: - release_region(ioaddr, 4); -cleanup_devc: - kfree(devc); - devc = NULL; - return 0; -} - -static int opl3_kill_note (int devno, int voice, int note, int velocity) -{ - struct physical_voice_info *map; - - if (voice < 0 || voice >= devc->nr_voice) - return 0; - - devc->v_alloc->map[voice] = 0; - - map = &pv_map[devc->lv_map[voice]]; - - if (map->voice_mode == 0) - return 0; - - opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num, devc->voc[voice].keyon_byte & ~0x20); - devc->voc[voice].keyon_byte = 0; - devc->voc[voice].bender = 0; - devc->voc[voice].volume = 64; - devc->voc[voice].panning = 0xffff; /* Not set */ - devc->voc[voice].bender_range = 200; - devc->voc[voice].orig_freq = 0; - devc->voc[voice].current_freq = 0; - devc->voc[voice].mode = 0; - return 0; -} - -#define HIHAT 0 -#define CYMBAL 1 -#define TOMTOM 2 -#define SNARE 3 -#define BDRUM 4 -#define UNDEFINED TOMTOM -#define DEFAULT TOMTOM - -static int store_instr(int instr_no, struct sbi_instrument *instr) -{ - if (instr->key != FM_PATCH && (instr->key != OPL3_PATCH || devc->model != 2)) - printk(KERN_WARNING "FM warning: Invalid patch format field (key) 0x%x\n", instr->key); - memcpy((char *) &(devc->i_map[instr_no]), (char *) instr, sizeof(*instr)); - return 0; -} - -static int opl3_set_instr (int dev, int voice, int instr_no) -{ - if (voice < 0 || voice >= devc->nr_voice) - return 0; - if (instr_no < 0 || instr_no >= SBFM_MAXINSTR) - instr_no = 0; /* Acoustic piano (usually) */ - - devc->act_i[voice] = &devc->i_map[instr_no]; - return 0; -} - -/* - * The next table looks magical, but it certainly is not. Its values have - * been calculated as table[i]=8*log(i/64)/log(2) with an obvious exception - * for i=0. This log-table converts a linear volume-scaling (0..127) to a - * logarithmic scaling as present in the FM-synthesizer chips. so : Volume - * 64 = 0 db = relative volume 0 and: Volume 32 = -6 db = relative - * volume -8 it was implemented as a table because it is only 128 bytes and - * it saves a lot of log() calculations. (RH) - */ - -static char fm_volume_table[128] = -{ - -64, -48, -40, -35, -32, -29, -27, -26, - -24, -23, -21, -20, -19, -18, -18, -17, - -16, -15, -15, -14, -13, -13, -12, -12, - -11, -11, -10, -10, -10, -9, -9, -8, - -8, -8, -7, -7, -7, -6, -6, -6, - -5, -5, -5, -5, -4, -4, -4, -4, - -3, -3, -3, -3, -2, -2, -2, -2, - -2, -1, -1, -1, -1, 0, 0, 0, - 0, 0, 0, 1, 1, 1, 1, 1, - 1, 2, 2, 2, 2, 2, 2, 2, - 3, 3, 3, 3, 3, 3, 3, 4, - 4, 4, 4, 4, 4, 4, 4, 5, - 5, 5, 5, 5, 5, 5, 5, 5, - 6, 6, 6, 6, 6, 6, 6, 6, - 6, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 8, 8, 8, 8, 8 -}; - -static void calc_vol(unsigned char *regbyte, int volume, int main_vol) -{ - int level = (~*regbyte & 0x3f); - - if (main_vol > 127) - main_vol = 127; - volume = (volume * main_vol) / 127; - - if (level) - level += fm_volume_table[volume]; - - if (level > 0x3f) - level = 0x3f; - if (level < 0) - level = 0; - - *regbyte = (*regbyte & 0xc0) | (~level & 0x3f); -} - -static void set_voice_volume(int voice, int volume, int main_vol) -{ - unsigned char vol1, vol2, vol3, vol4; - struct sbi_instrument *instr; - struct physical_voice_info *map; - - if (voice < 0 || voice >= devc->nr_voice) - return; - - map = &pv_map[devc->lv_map[voice]]; - instr = devc->act_i[voice]; - - if (!instr) - instr = &devc->i_map[0]; - - if (instr->channel < 0) - return; - - if (devc->voc[voice].mode == 0) - return; - - if (devc->voc[voice].mode == 2) - { - vol1 = instr->operators[2]; - vol2 = instr->operators[3]; - if ((instr->operators[10] & 0x01)) - { - calc_vol(&vol1, volume, main_vol); - calc_vol(&vol2, volume, main_vol); - } - else - { - calc_vol(&vol2, volume, main_vol); - } - opl3_command(map->ioaddr, KSL_LEVEL + map->op[0], vol1); - opl3_command(map->ioaddr, KSL_LEVEL + map->op[1], vol2); - } - else - { /* - * 4 OP voice - */ - int connection; - - vol1 = instr->operators[2]; - vol2 = instr->operators[3]; - vol3 = instr->operators[OFFS_4OP + 2]; - vol4 = instr->operators[OFFS_4OP + 3]; - - /* - * The connection method for 4 OP devc->voc is defined by the rightmost - * bits at the offsets 10 and 10+OFFS_4OP - */ - - connection = ((instr->operators[10] & 0x01) << 1) | (instr->operators[10 + OFFS_4OP] & 0x01); - - switch (connection) - { - case 0: - calc_vol(&vol4, volume, main_vol); - break; - - case 1: - calc_vol(&vol2, volume, main_vol); - calc_vol(&vol4, volume, main_vol); - break; - - case 2: - calc_vol(&vol1, volume, main_vol); - calc_vol(&vol4, volume, main_vol); - break; - - case 3: - calc_vol(&vol1, volume, main_vol); - calc_vol(&vol3, volume, main_vol); - calc_vol(&vol4, volume, main_vol); - break; - - default: - ; - } - opl3_command(map->ioaddr, KSL_LEVEL + map->op[0], vol1); - opl3_command(map->ioaddr, KSL_LEVEL + map->op[1], vol2); - opl3_command(map->ioaddr, KSL_LEVEL + map->op[2], vol3); - opl3_command(map->ioaddr, KSL_LEVEL + map->op[3], vol4); - } -} - -static int opl3_start_note (int dev, int voice, int note, int volume) -{ - unsigned char data, fpc; - int block, fnum, freq, voice_mode, pan; - struct sbi_instrument *instr; - struct physical_voice_info *map; - - if (voice < 0 || voice >= devc->nr_voice) - return 0; - - map = &pv_map[devc->lv_map[voice]]; - pan = devc->voc[voice].panning; - - if (map->voice_mode == 0) - return 0; - - if (note == 255) /* - * Just change the volume - */ - { - set_voice_volume(voice, volume, devc->voc[voice].volume); - return 0; - } - - /* - * Kill previous note before playing - */ - - opl3_command(map->ioaddr, KSL_LEVEL + map->op[1], 0xff); /* - * Carrier - * volume to - * min - */ - opl3_command(map->ioaddr, KSL_LEVEL + map->op[0], 0xff); /* - * Modulator - * volume to - */ - - if (map->voice_mode == 4) - { - opl3_command(map->ioaddr, KSL_LEVEL + map->op[2], 0xff); - opl3_command(map->ioaddr, KSL_LEVEL + map->op[3], 0xff); - } - - opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num, 0x00); /* - * Note - * off - */ - - instr = devc->act_i[voice]; - - if (!instr) - instr = &devc->i_map[0]; - - if (instr->channel < 0) - { - printk(KERN_WARNING "opl3: Initializing voice %d with undefined instrument\n", voice); - return 0; - } - - if (map->voice_mode == 2 && instr->key == OPL3_PATCH) - return 0; /* - * Cannot play - */ - - voice_mode = map->voice_mode; - - if (voice_mode == 4) - { - int voice_shift; - - voice_shift = (map->ioaddr == devc->left_io) ? 0 : 3; - voice_shift += map->voice_num; - - if (instr->key != OPL3_PATCH) /* - * Just 2 OP patch - */ - { - voice_mode = 2; - devc->cmask &= ~(1 << voice_shift); - } - else - { - devc->cmask |= (1 << voice_shift); - } - - opl3_command(devc->right_io, CONNECTION_SELECT_REGISTER, devc->cmask); - } - - /* - * Set Sound Characteristics - */ - - opl3_command(map->ioaddr, AM_VIB + map->op[0], instr->operators[0]); - opl3_command(map->ioaddr, AM_VIB + map->op[1], instr->operators[1]); - - /* - * Set Attack/Decay - */ - - opl3_command(map->ioaddr, ATTACK_DECAY + map->op[0], instr->operators[4]); - opl3_command(map->ioaddr, ATTACK_DECAY + map->op[1], instr->operators[5]); - - /* - * Set Sustain/Release - */ - - opl3_command(map->ioaddr, SUSTAIN_RELEASE + map->op[0], instr->operators[6]); - opl3_command(map->ioaddr, SUSTAIN_RELEASE + map->op[1], instr->operators[7]); - - /* - * Set Wave Select - */ - - opl3_command(map->ioaddr, WAVE_SELECT + map->op[0], instr->operators[8]); - opl3_command(map->ioaddr, WAVE_SELECT + map->op[1], instr->operators[9]); - - /* - * Set Feedback/Connection - */ - - fpc = instr->operators[10]; - - if (pan != 0xffff) - { - fpc &= ~STEREO_BITS; - if (pan < -64) - fpc |= VOICE_TO_LEFT; - else - if (pan > 64) - fpc |= VOICE_TO_RIGHT; - else - fpc |= (VOICE_TO_LEFT | VOICE_TO_RIGHT); - } - - if (!(fpc & 0x30)) - fpc |= 0x30; /* - * Ensure that at least one chn is enabled - */ - opl3_command(map->ioaddr, FEEDBACK_CONNECTION + map->voice_num, fpc); - - /* - * If the voice is a 4 OP one, initialize the operators 3 and 4 also - */ - - if (voice_mode == 4) - { - /* - * Set Sound Characteristics - */ - - opl3_command(map->ioaddr, AM_VIB + map->op[2], instr->operators[OFFS_4OP + 0]); - opl3_command(map->ioaddr, AM_VIB + map->op[3], instr->operators[OFFS_4OP + 1]); - - /* - * Set Attack/Decay - */ - - opl3_command(map->ioaddr, ATTACK_DECAY + map->op[2], instr->operators[OFFS_4OP + 4]); - opl3_command(map->ioaddr, ATTACK_DECAY + map->op[3], instr->operators[OFFS_4OP + 5]); - - /* - * Set Sustain/Release - */ - - opl3_command(map->ioaddr, SUSTAIN_RELEASE + map->op[2], instr->operators[OFFS_4OP + 6]); - opl3_command(map->ioaddr, SUSTAIN_RELEASE + map->op[3], instr->operators[OFFS_4OP + 7]); - - /* - * Set Wave Select - */ - - opl3_command(map->ioaddr, WAVE_SELECT + map->op[2], instr->operators[OFFS_4OP + 8]); - opl3_command(map->ioaddr, WAVE_SELECT + map->op[3], instr->operators[OFFS_4OP + 9]); - - /* - * Set Feedback/Connection - */ - - fpc = instr->operators[OFFS_4OP + 10]; - if (!(fpc & 0x30)) - fpc |= 0x30; /* - * Ensure that at least one chn is enabled - */ - opl3_command(map->ioaddr, FEEDBACK_CONNECTION + map->voice_num + 3, fpc); - } - - devc->voc[voice].mode = voice_mode; - set_voice_volume(voice, volume, devc->voc[voice].volume); - - freq = devc->voc[voice].orig_freq = note_to_freq(note) / 1000; - - /* - * Since the pitch bender may have been set before playing the note, we - * have to calculate the bending now. - */ - - freq = compute_finetune(devc->voc[voice].orig_freq, devc->voc[voice].bender, devc->voc[voice].bender_range, 0); - devc->voc[voice].current_freq = freq; - - freq_to_fnum(freq, &block, &fnum); - - /* - * Play note - */ - - data = fnum & 0xff; /* - * Least significant bits of fnumber - */ - opl3_command(map->ioaddr, FNUM_LOW + map->voice_num, data); - - data = 0x20 | ((block & 0x7) << 2) | ((fnum >> 8) & 0x3); - devc->voc[voice].keyon_byte = data; - opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num, data); - if (voice_mode == 4) - opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num + 3, data); - - return 0; -} - -static void freq_to_fnum (int freq, int *block, int *fnum) -{ - int f, octave; - - /* - * Converts the note frequency to block and fnum values for the FM chip - */ - /* - * First try to compute the block -value (octave) where the note belongs - */ - - f = freq; - - octave = 5; - - if (f == 0) - octave = 0; - else if (f < 261) - { - while (f < 261) - { - octave--; - f <<= 1; - } - } - else if (f > 493) - { - while (f > 493) - { - octave++; - f >>= 1; - } - } - - if (octave > 7) - octave = 7; - - *fnum = freq * (1 << (20 - octave)) / 49716; - *block = octave; -} - -static void opl3_command (int io_addr, unsigned int addr, unsigned int val) -{ - int i; - - /* - * The original 2-OP synth requires a quite long delay after writing to a - * register. The OPL-3 survives with just two INBs - */ - - outb(((unsigned char) (addr & 0xff)), io_addr); - - if (devc->model != 2) - udelay(10); - else - for (i = 0; i < 2; i++) - inb(io_addr); - - outb(((unsigned char) (val & 0xff)), io_addr + 1); - - if (devc->model != 2) - udelay(30); - else - for (i = 0; i < 2; i++) - inb(io_addr); -} - -static void opl3_reset(int devno) -{ - int i; - - for (i = 0; i < 18; i++) - devc->lv_map[i] = i; - - for (i = 0; i < devc->nr_voice; i++) - { - opl3_command(pv_map[devc->lv_map[i]].ioaddr, - KSL_LEVEL + pv_map[devc->lv_map[i]].op[0], 0xff); - - opl3_command(pv_map[devc->lv_map[i]].ioaddr, - KSL_LEVEL + pv_map[devc->lv_map[i]].op[1], 0xff); - - if (pv_map[devc->lv_map[i]].voice_mode == 4) - { - opl3_command(pv_map[devc->lv_map[i]].ioaddr, - KSL_LEVEL + pv_map[devc->lv_map[i]].op[2], 0xff); - - opl3_command(pv_map[devc->lv_map[i]].ioaddr, - KSL_LEVEL + pv_map[devc->lv_map[i]].op[3], 0xff); - } - - opl3_kill_note(devno, i, 0, 64); - } - - if (devc->model == 2) - { - devc->v_alloc->max_voice = devc->nr_voice = 18; - - for (i = 0; i < 18; i++) - pv_map[i].voice_mode = 2; - - } -} - -static int opl3_open(int dev, int mode) -{ - int i; - - if (devc->busy) - return -EBUSY; - devc->busy = 1; - - devc->v_alloc->max_voice = devc->nr_voice = (devc->model == 2) ? 18 : 9; - devc->v_alloc->timestamp = 0; - - for (i = 0; i < 18; i++) - { - devc->v_alloc->map[i] = 0; - devc->v_alloc->alloc_times[i] = 0; - } - - devc->cmask = 0x00; /* - * Just 2 OP mode - */ - if (devc->model == 2) - opl3_command(devc->right_io, CONNECTION_SELECT_REGISTER, devc->cmask); - return 0; -} - -static void opl3_close(int dev) -{ - devc->busy = 0; - devc->v_alloc->max_voice = devc->nr_voice = (devc->model == 2) ? 18 : 9; - - devc->fm_info.nr_drums = 0; - devc->fm_info.perc_mode = 0; - - opl3_reset(dev); -} - -static void opl3_hw_control(int dev, unsigned char *event) -{ -} - -static int opl3_load_patch(int dev, int format, const char __user *addr, - int count, int pmgr_flag) -{ - struct sbi_instrument ins; - - if (count = SBFM_MAXINSTR) - { - printk(KERN_WARNING "FM Error: Invalid instrument number %d\n", ins.channel); - return -EINVAL; - } - ins.key = format; - - return store_instr(ins.channel, &ins); -} - -static void opl3_panning(int dev, int voice, int value) -{ - - if (voice < 0 || voice >= devc->nr_voice) - return; - - devc->voc[voice].panning = value; -} - -static void opl3_volume_method(int dev, int mode) -{ -} - -#define SET_VIBRATO(cell) { \ - tmp = instr->operators[(cell-1)+(((cell-1)/2)*OFFS_4OP)]; \ - if (pressure > 110) \ - tmp |= 0x40; /* Vibrato on */ \ - opl3_command (map->ioaddr, AM_VIB + map->op[cell-1], tmp);} - -static void opl3_aftertouch(int dev, int voice, int pressure) -{ - int tmp; - struct sbi_instrument *instr; - struct physical_voice_info *map; - - if (voice < 0 || voice >= devc->nr_voice) - return; - - map = &pv_map[devc->lv_map[voice]]; - - if (map->voice_mode == 0) - return; - - /* - * Adjust the amount of vibrato depending the pressure - */ - - instr = devc->act_i[voice]; - - if (!instr) - instr = &devc->i_map[0]; - - if (devc->voc[voice].mode == 4) - { - int connection = ((instr->operators[10] & 0x01) << 1) | (instr->operators[10 + OFFS_4OP] & 0x01); - - switch (connection) - { - case 0: - SET_VIBRATO(4); - break; - - case 1: - SET_VIBRATO(2); - SET_VIBRATO(4); - break; - - case 2: - SET_VIBRATO(1); - SET_VIBRATO(4); - break; - - case 3: - SET_VIBRATO(1); - SET_VIBRATO(3); - SET_VIBRATO(4); - break; - - } - /* - * Not implemented yet - */ - } - else - { - SET_VIBRATO(1); - - if ((instr->operators[10] & 0x01)) /* - * Additive synthesis - */ - SET_VIBRATO(2); - } -} - -#undef SET_VIBRATO - -static void bend_pitch(int dev, int voice, int value) -{ - unsigned char data; - int block, fnum, freq; - struct physical_voice_info *map; - - map = &pv_map[devc->lv_map[voice]]; - - if (map->voice_mode == 0) - return; - - devc->voc[voice].bender = value; - if (!value) - return; - if (!(devc->voc[voice].keyon_byte & 0x20)) - return; /* - * Not keyed on - */ - - freq = compute_finetune(devc->voc[voice].orig_freq, devc->voc[voice].bender, devc->voc[voice].bender_range, 0); - devc->voc[voice].current_freq = freq; - - freq_to_fnum(freq, &block, &fnum); - - data = fnum & 0xff; /* - * Least significant bits of fnumber - */ - opl3_command(map->ioaddr, FNUM_LOW + map->voice_num, data); - - data = 0x20 | ((block & 0x7) << 2) | ((fnum >> 8) & 0x3); - devc->voc[voice].keyon_byte = data; - opl3_command(map->ioaddr, KEYON_BLOCK + map->voice_num, data); -} - -static void opl3_controller (int dev, int voice, int ctrl_num, int value) -{ - if (voice < 0 || voice >= devc->nr_voice) - return; - - switch (ctrl_num) - { - case CTRL_PITCH_BENDER: - bend_pitch(dev, voice, value); - break; - - case CTRL_PITCH_BENDER_RANGE: - devc->voc[voice].bender_range = value; - break; - - case CTL_MAIN_VOLUME: - devc->voc[voice].volume = value / 128; - break; - - case CTL_PAN: - devc->voc[voice].panning = (value * 2) - 128; - break; - } -} - -static void opl3_bender(int dev, int voice, int value) -{ - if (voice < 0 || voice >= devc->nr_voice) - return; - - bend_pitch(dev, voice, value - 8192); -} - -static int opl3_alloc_voice(int dev, int chn, int note, struct voice_alloc_info *alloc) -{ - int i, p, best, first, avail, best_time = 0x7fffffff; - struct sbi_instrument *instr; - int is4op; - int instr_no; - - if (chn < 0 || chn > 15) - instr_no = 0; - else - instr_no = devc->chn_info[chn].pgm_num; - - instr = &devc->i_map[instr_no]; - if (instr->channel < 0 || /* Instrument not loaded */ - devc->nr_voice != 12) /* Not in 4 OP mode */ - is4op = 0; - else if (devc->nr_voice == 12) /* 4 OP mode */ - is4op = (instr->key == OPL3_PATCH); - else - is4op = 0; - - if (is4op) - { - first = p = 0; - avail = 6; - } - else - { - if (devc->nr_voice == 12) /* 4 OP mode. Use the '2 OP only' operators first */ - first = p = 6; - else - first = p = 0; - avail = devc->nr_voice; - } - - /* - * Now try to find a free voice - */ - best = first; - - for (i = 0; i < avail; i++) - { - if (alloc->map[p] == 0) - { - return p; - } - if (alloc->alloc_times[p] < best_time) /* Find oldest playing note */ - { - best_time = alloc->alloc_times[p]; - best = p; - } - p = (p + 1) % avail; - } - - /* - * Insert some kind of priority mechanism here. - */ - - if (best < 0) - best = 0; - if (best > devc->nr_voice) - best -= devc->nr_voice; - - return best; /* All devc->voc in use. Select the first one. */ -} - -static void opl3_setup_voice(int dev, int voice, int chn) -{ - struct channel_info *info; - - if (voice < 0 || voice >= devc->nr_voice) - return; - - if (chn < 0 || chn > 15) - return; - - info = &synth_devs[dev]->chn_info[chn]; - - opl3_set_instr(dev, voice, info->pgm_num); - - devc->voc[voice].bender = 0; - devc->voc[voice].bender_range = info->bender_range; - devc->voc[voice].volume = info->controllers[CTL_MAIN_VOLUME]; - devc->voc[voice].panning = (info->controllers[CTL_PAN] * 2) - 128; -} - -static struct synth_operations opl3_operations = -{ - .owner = THIS_MODULE, - .id = "OPL", - .info = NULL, - .midi_dev = 0, - .synth_type = SYNTH_TYPE_FM, - .synth_subtype = FM_TYPE_ADLIB, - .open = opl3_open, - .close = opl3_close, - .ioctl = opl3_ioctl, - .kill_note = opl3_kill_note, - .start_note = opl3_start_note, - .set_instr = opl3_set_instr, - .reset = opl3_reset, - .hw_control = opl3_hw_control, - .load_patch = opl3_load_patch, - .aftertouch = opl3_aftertouch, - .controller = opl3_controller, - .panning = opl3_panning, - .volume_method = opl3_volume_method, - .bender = opl3_bender, - .alloc_voice = opl3_alloc_voice, - .setup_voice = opl3_setup_voice -}; - -static int opl3_init(int ioaddr, struct module *owner) -{ - int i; - int me; - - if (devc == NULL) - { - printk(KERN_ERR "opl3: Device control structure not initialized.\n"); - return -1; - } - - if ((me = sound_alloc_synthdev()) == -1) - { - printk(KERN_WARNING "opl3: Too many synthesizers\n"); - return -1; - } - - devc->nr_voice = 9; - - devc->fm_info.device = 0; - devc->fm_info.synth_type = SYNTH_TYPE_FM; - devc->fm_info.synth_subtype = FM_TYPE_ADLIB; - devc->fm_info.perc_mode = 0; - devc->fm_info.nr_voices = 9; - devc->fm_info.nr_drums = 0; - devc->fm_info.instr_bank_size = SBFM_MAXINSTR; - devc->fm_info.capabilities = 0; - devc->left_io = ioaddr; - devc->right_io = ioaddr + 2; - - if (detected_model <= 2) - devc->model = 1; - else - { - devc->model = 2; - if (detected_model == 4) - devc->is_opl4 = 1; - } - - opl3_operations.info = &devc->fm_info; - - synth_devs[me] = &opl3_operations; - - if (owner) - synth_devs[me]->owner = owner; - - sequencer_init(); - devc->v_alloc = &opl3_operations.alloc; - devc->chn_info = &opl3_operations.chn_info[0]; - - if (devc->model == 2) - { - if (devc->is_opl4) - strcpy(devc->fm_info.name, "Yamaha OPL4/OPL3 FM"); - else - strcpy(devc->fm_info.name, "Yamaha OPL3"); - - devc->v_alloc->max_voice = devc->nr_voice = 18; - devc->fm_info.nr_drums = 0; - devc->fm_info.synth_subtype = FM_TYPE_OPL3; - devc->fm_info.capabilities |= SYNTH_CAP_OPL3; - - for (i = 0; i < 18; i++) - { - if (pv_map[i].ioaddr == USE_LEFT) - pv_map[i].ioaddr = devc->left_io; - else - pv_map[i].ioaddr = devc->right_io; - } - opl3_command(devc->right_io, OPL3_MODE_REGISTER, OPL3_ENABLE); - opl3_command(devc->right_io, CONNECTION_SELECT_REGISTER, 0x00); - } - else - { - strcpy(devc->fm_info.name, "Yamaha OPL2"); - devc->v_alloc->max_voice = devc->nr_voice = 9; - devc->fm_info.nr_drums = 0; - - for (i = 0; i < 18; i++) - pv_map[i].ioaddr = devc->left_io; - } - conf_printf2(devc->fm_info.name, ioaddr, 0, -1, -1); - - for (i = 0; i < SBFM_MAXINSTR; i++) - devc->i_map[i].channel = -1; - - return me; -} - -static int me; - -static int io = -1; - -module_param_hw(io, int, ioport, 0); - -static int __init init_opl3 (void) -{ - printk(KERN_INFO "YM3812 and OPL-3 driver Copyright (C) by Hannu Savolainen, Rob Hooft 1993-1996\n"); - - if (io != -1) /* User loading pure OPL3 module */ - { - if (!opl3_detect(io)) - { - return -ENODEV; - } - - me = opl3_init(io, THIS_MODULE); - } - - return 0; -} - -static void __exit cleanup_opl3(void) -{ - if (devc && io != -1) - { - if (devc->base) { - release_region(devc->base,4); - if (devc->is_opl4) - release_region(devc->base - 8, 2); - } - kfree(devc); - devc = NULL; - sound_unload_synthdev(me); - } -} - -module_init(init_opl3); -module_exit(cleanup_opl3); - -#ifndef MODULE -static int __init setup_opl3(char *str) -{ - /* io */ - int ints[2]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - io = ints[1]; - - return 1; -} - -__setup("opl3=", setup_opl3); -#endif -MODULE_LICENSE("GPL"); diff --git a/sound/oss/opl3_hw.h b/sound/oss/opl3_hw.h deleted file mode 100644 index 8b11c893e869..000000000000 --- a/sound/oss/opl3_hw.h +++ /dev/null @@ -1,246 +0,0 @@ -/* - * opl3_hw.h - Definitions of the OPL-3 registers - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * The OPL-3 mode is switched on by writing 0x01, to the offset 5 - * of the right side. - * - * Another special register at the right side is at offset 4. It contains - * a bit mask defining which voices are used as 4 OP voices. - * - * The percussive mode is implemented in the left side only. - * - * With the above exceptions the both sides can be operated independently. - * - * A 4 OP voice can be created by setting the corresponding - * bit at offset 4 of the right side. - * - * For example setting the rightmost bit (0x01) changes the - * first voice on the right side to the 4 OP mode. The fourth - * voice is made inaccessible. - * - * If a voice is set to the 2 OP mode, it works like 2 OP modes - * of the original YM3812 (AdLib). In addition the voice can - * be connected the left, right or both stereo channels. It can - * even be left unconnected. This works with 4 OP voices also. - * - * The stereo connection bits are located in the FEEDBACK_CONNECTION - * register of the voice (0xC0-0xC8). In 4 OP voices these bits are - * in the second half of the voice. - */ - -/* - * Register numbers for the global registers - */ - -#define TEST_REGISTER 0x01 -#define ENABLE_WAVE_SELECT 0x20 - -#define TIMER1_REGISTER 0x02 -#define TIMER2_REGISTER 0x03 -#define TIMER_CONTROL_REGISTER 0x04 /* Left side */ -#define IRQ_RESET 0x80 -#define TIMER1_MASK 0x40 -#define TIMER2_MASK 0x20 -#define TIMER1_START 0x01 -#define TIMER2_START 0x02 - -#define CONNECTION_SELECT_REGISTER 0x04 /* Right side */ -#define RIGHT_4OP_0 0x01 -#define RIGHT_4OP_1 0x02 -#define RIGHT_4OP_2 0x04 -#define LEFT_4OP_0 0x08 -#define LEFT_4OP_1 0x10 -#define LEFT_4OP_2 0x20 - -#define OPL3_MODE_REGISTER 0x05 /* Right side */ -#define OPL3_ENABLE 0x01 -#define OPL4_ENABLE 0x02 - -#define KBD_SPLIT_REGISTER 0x08 /* Left side */ -#define COMPOSITE_SINE_WAVE_MODE 0x80 /* Don't use with OPL-3? */ -#define KEYBOARD_SPLIT 0x40 - -#define PERCOSSION_REGISTER 0xbd /* Left side only */ -#define TREMOLO_DEPTH 0x80 -#define VIBRATO_DEPTH 0x40 -#define PERCOSSION_ENABLE 0x20 -#define BASSDRUM_ON 0x10 -#define SNAREDRUM_ON 0x08 -#define TOMTOM_ON 0x04 -#define CYMBAL_ON 0x02 -#define HIHAT_ON 0x01 - -/* - * Offsets to the register banks for operators. To get the - * register number just add the operator offset to the bank offset - * - * AM/VIB/EG/KSR/Multiple (0x20 to 0x35) - */ -#define AM_VIB 0x20 -#define TREMOLO_ON 0x80 -#define VIBRATO_ON 0x40 -#define SUSTAIN_ON 0x20 -#define KSR 0x10 /* Key scaling rate */ -#define MULTIPLE_MASK 0x0f /* Frequency multiplier */ - - /* - * KSL/Total level (0x40 to 0x55) - */ -#define KSL_LEVEL 0x40 -#define KSL_MASK 0xc0 /* Envelope scaling bits */ -#define TOTAL_LEVEL_MASK 0x3f /* Strength (volume) of OP */ - -/* - * Attack / Decay rate (0x60 to 0x75) - */ -#define ATTACK_DECAY 0x60 -#define ATTACK_MASK 0xf0 -#define DECAY_MASK 0x0f - -/* - * Sustain level / Release rate (0x80 to 0x95) - */ -#define SUSTAIN_RELEASE 0x80 -#define SUSTAIN_MASK 0xf0 -#define RELEASE_MASK 0x0f - -/* - * Wave select (0xE0 to 0xF5) - */ -#define WAVE_SELECT 0xe0 - -/* - * Offsets to the register banks for voices. Just add to the - * voice number to get the register number. - * - * F-Number low bits (0xA0 to 0xA8). - */ -#define FNUM_LOW 0xa0 - -/* - * F-number high bits / Key on / Block (octave) (0xB0 to 0xB8) - */ -#define KEYON_BLOCK 0xb0 -#define KEYON_BIT 0x20 -#define BLOCKNUM_MASK 0x1c -#define FNUM_HIGH_MASK 0x03 - -/* - * Feedback / Connection (0xc0 to 0xc8) - * - * These registers have two new bits when the OPL-3 mode - * is selected. These bits controls connecting the voice - * to the stereo channels. For 4 OP voices this bit is - * defined in the second half of the voice (add 3 to the - * register offset). - * - * For 4 OP voices the connection bit is used in the - * both halves (gives 4 ways to connect the operators). - */ -#define FEEDBACK_CONNECTION 0xc0 -#define FEEDBACK_MASK 0x0e /* Valid just for 1st OP of a voice */ -#define CONNECTION_BIT 0x01 -/* - * In the 4 OP mode there is four possible configurations how the - * operators can be connected together (in 2 OP modes there is just - * AM or FM). The 4 OP connection mode is defined by the rightmost - * bit of the FEEDBACK_CONNECTION (0xC0-0xC8) on the both halves. - * - * First half Second half Mode - * - * +---+ - * v | - * 0 0 >+-1-+--2--3--4--> - * - * - * - * +---+ - * | | - * 0 1 >+-1-+--2-+ - * |-> - * >--3----4-+ - * - * +---+ - * | | - * 1 0 >+-1-+-----+ - * |-> - * >--2--3--4-+ - * - * +---+ - * | | - * 1 1 >+-1-+--+ - * | - * >--2--3-+-> - * | - * >--4----+ - */ -#define STEREO_BITS 0x30 /* OPL-3 only */ -#define VOICE_TO_LEFT 0x10 -#define VOICE_TO_RIGHT 0x20 - -/* - * Definition table for the physical voices - */ - -struct physical_voice_info { - unsigned char voice_num; - unsigned char voice_mode; /* 0=unavailable, 2=2 OP, 4=4 OP */ - unsigned short ioaddr; /* I/O port (left or right side) */ - unsigned char op[4]; /* Operator offsets */ - }; - -/* - * There is 18 possible 2 OP voices - * (9 in the left and 9 in the right). - * The first OP is the modulator and 2nd is the carrier. - * - * The first three voices in the both sides may be connected - * with another voice to a 4 OP voice. For example voice 0 - * can be connected with voice 3. The operators of voice 3 are - * used as operators 3 and 4 of the new 4 OP voice. - * In this case the 2 OP voice number 0 is the 'first half' and - * voice 3 is the second. - */ - -#define USE_LEFT 0 -#define USE_RIGHT 1 - -static struct physical_voice_info pv_map[18] = -{ -/* No Mode Side OP1 OP2 OP3 OP4 */ -/* --------------------------------------------------- */ - { 0, 2, USE_LEFT, {0x00, 0x03, 0x08, 0x0b}}, - { 1, 2, USE_LEFT, {0x01, 0x04, 0x09, 0x0c}}, - { 2, 2, USE_LEFT, {0x02, 0x05, 0x0a, 0x0d}}, - - { 3, 2, USE_LEFT, {0x08, 0x0b, 0x00, 0x00}}, - { 4, 2, USE_LEFT, {0x09, 0x0c, 0x00, 0x00}}, - { 5, 2, USE_LEFT, {0x0a, 0x0d, 0x00, 0x00}}, - - { 6, 2, USE_LEFT, {0x10, 0x13, 0x00, 0x00}}, /* Used by percussive voices */ - { 7, 2, USE_LEFT, {0x11, 0x14, 0x00, 0x00}}, /* if the percussive mode */ - { 8, 2, USE_LEFT, {0x12, 0x15, 0x00, 0x00}}, /* is selected */ - - { 0, 2, USE_RIGHT, {0x00, 0x03, 0x08, 0x0b}}, - { 1, 2, USE_RIGHT, {0x01, 0x04, 0x09, 0x0c}}, - { 2, 2, USE_RIGHT, {0x02, 0x05, 0x0a, 0x0d}}, - - { 3, 2, USE_RIGHT, {0x08, 0x0b, 0x00, 0x00}}, - { 4, 2, USE_RIGHT, {0x09, 0x0c, 0x00, 0x00}}, - { 5, 2, USE_RIGHT, {0x0a, 0x0d, 0x00, 0x00}}, - - { 6, 2, USE_RIGHT, {0x10, 0x13, 0x00, 0x00}}, - { 7, 2, USE_RIGHT, {0x11, 0x14, 0x00, 0x00}}, - { 8, 2, USE_RIGHT, {0x12, 0x15, 0x00, 0x00}} -}; -/* - * DMA buffer calls - */ diff --git a/sound/oss/os.h b/sound/oss/os.h deleted file mode 100644 index 0bf89e1d679c..000000000000 --- a/sound/oss/os.h +++ /dev/null @@ -1,45 +0,0 @@ -#define ALLOW_SELECT -#undef NO_INLINE_ASM -#define SHORT_BANNERS -#define MANUAL_PNP -#undef DO_TIMINGS - -#include - -#ifdef __KERNEL__ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#endif - -#include - -#define FALSE 0 -#define TRUE 1 - -extern int sound_alloc_dma(int chn, char *deviceID); -extern int sound_open_dma(int chn, char *deviceID); -extern void sound_free_dma(int chn); -extern void sound_close_dma(int chn); - -extern void reprogram_timer(void); - -#define USE_AUTOINIT_DMA - -extern void *sound_mem_blocks[1024]; -extern int sound_nblocks; - -#undef PSEUDO_DMA_AUTOINIT -#define ALLOW_BUFFER_MAPPING - -extern const struct file_operations oss_sound_fops; diff --git a/sound/oss/pas2.h b/sound/oss/pas2.h deleted file mode 100644 index d19f757dbd79..000000000000 --- a/sound/oss/pas2.h +++ /dev/null @@ -1,20 +0,0 @@ - -/* From pas_card.c */ -int pas_set_intr(int mask); -int pas_remove_intr(int mask); -unsigned char pas_read(int ioaddr); -void pas_write(unsigned char data, int ioaddr); - -/* From pas_audio.c */ -void pas_pcm_interrupt(unsigned char status, int cause); -void pas_pcm_init(struct address_info *hw_config); - -/* From pas_mixer.c */ -int pas_init_mixer(void); - -/* From pas_midi.c */ -void pas_midi_init(void); -void pas_midi_interrupt(void); - -/* From pas2_mixer.c*/ -void mix_write(unsigned char data, int ioaddr); diff --git a/sound/oss/pas2_card.c b/sound/oss/pas2_card.c deleted file mode 100644 index 769fca692d2a..000000000000 --- a/sound/oss/pas2_card.c +++ /dev/null @@ -1,458 +0,0 @@ -/* - * sound/oss/pas2_card.c - * - * Detection routine for the Pro Audio Spectrum cards. - */ - -#include -#include -#include -#include -#include "sound_config.h" - -#include "pas2.h" -#include "sb.h" - -static unsigned char dma_bits[] = { - 4, 1, 2, 3, 0, 5, 6, 7 -}; - -static unsigned char irq_bits[] = { - 0, 0, 1, 2, 3, 4, 5, 6, 0, 1, 7, 8, 9, 0, 10, 11 -}; - -static unsigned char sb_irq_bits[] = { - 0x00, 0x00, 0x08, 0x10, 0x00, 0x18, 0x00, 0x20, - 0x00, 0x08, 0x28, 0x30, 0x38, 0, 0 -}; - -static unsigned char sb_dma_bits[] = { - 0x00, 0x40, 0x80, 0xC0, 0, 0, 0, 0 -}; - -/* - * The Address Translation code is used to convert I/O register addresses to - * be relative to the given base -register - */ - -int pas_translate_code = 0; -static int pas_intr_mask; -static int pas_irq; -static int pas_sb_base; -DEFINE_SPINLOCK(pas_lock); -#ifndef CONFIG_PAS_JOYSTICK -static bool joystick; -#else -static bool joystick = 1; -#endif -#ifdef SYMPHONY_PAS -static bool symphony = 1; -#else -static bool symphony; -#endif -#ifdef BROKEN_BUS_CLOCK -static bool broken_bus_clock = 1; -#else -static bool broken_bus_clock; -#endif - -static struct address_info cfg; -static struct address_info cfg2; - -char pas_model = 0; -static char *pas_model_names[] = { - "", - "Pro AudioSpectrum+", - "CDPC", - "Pro AudioSpectrum 16", - "Pro AudioSpectrum 16D" -}; - -/* - * pas_read() and pas_write() are equivalents of inb and outb - * These routines perform the I/O address translation required - * to support other than the default base address - */ - -unsigned char pas_read(int ioaddr) -{ - return inb(ioaddr + pas_translate_code); -} - -void pas_write(unsigned char data, int ioaddr) -{ - outb((data), ioaddr + pas_translate_code); -} - -/******************* Begin of the Interrupt Handler ********************/ - -static irqreturn_t pasintr(int irq, void *dev_id) -{ - int status; - - status = pas_read(0x0B89); - pas_write(status, 0x0B89); /* Clear interrupt */ - - if (status & 0x08) - { - pas_pcm_interrupt(status, 1); - status &= ~0x08; - } - if (status & 0x10) - { - pas_midi_interrupt(); - status &= ~0x10; - } - return IRQ_HANDLED; -} - -int pas_set_intr(int mask) -{ - if (!mask) - return 0; - - pas_intr_mask |= mask; - - pas_write(pas_intr_mask, 0x0B8B); - return 0; -} - -int pas_remove_intr(int mask) -{ - if (!mask) - return 0; - - pas_intr_mask &= ~mask; - pas_write(pas_intr_mask, 0x0B8B); - - return 0; -} - -/******************* End of the Interrupt handler **********************/ - -/******************* Begin of the Initialization Code ******************/ - -static int __init config_pas_hw(struct address_info *hw_config) -{ - char ok = 1; - unsigned int_ptrs; /* scsi/sound interrupt pointers */ - - pas_irq = hw_config->irq; - - pas_write(0x00, 0x0B8B); - pas_write(0x36, 0x138B); - pas_write(0x36, 0x1388); - pas_write(0, 0x1388); - pas_write(0x74, 0x138B); - pas_write(0x74, 0x1389); - pas_write(0, 0x1389); - - pas_write(0x80 | 0x40 | 0x20 | 1, 0x0B8A); - pas_write(0x80 | 0x20 | 0x10 | 0x08 | 0x01, 0xF8A); - pas_write(0x01 | 0x02 | 0x04 | 0x10 /* - * | - * 0x80 - */ , 0xB88); - - pas_write(0x80 | (joystick ? 0x40 : 0), 0xF388); - - if (pas_irq < 0 || pas_irq > 15) - { - printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq); - hw_config->irq=-1; - ok = 0; - } - else - { - int_ptrs = pas_read(0xF38A); - int_ptrs = (int_ptrs & 0xf0) | irq_bits[pas_irq]; - pas_write(int_ptrs, 0xF38A); - if (!irq_bits[pas_irq]) - { - printk(KERN_ERR "PAS16: Invalid IRQ %d", pas_irq); - hw_config->irq=-1; - ok = 0; - } - else - { - if (request_irq(pas_irq, pasintr, 0, "PAS16",hw_config) < 0) { - printk(KERN_ERR "PAS16: Cannot allocate IRQ %d\n",pas_irq); - hw_config->irq=-1; - ok = 0; - } - } - } - - if (hw_config->dma < 0 || hw_config->dma > 7) - { - printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma); - hw_config->dma=-1; - ok = 0; - } - else - { - pas_write(dma_bits[hw_config->dma], 0xF389); - if (!dma_bits[hw_config->dma]) - { - printk(KERN_ERR "PAS16: Invalid DMA selection %d", hw_config->dma); - hw_config->dma=-1; - ok = 0; - } - else - { - if (sound_alloc_dma(hw_config->dma, "PAS16")) - { - printk(KERN_ERR "pas2_card.c: Can't allocate DMA channel\n"); - hw_config->dma=-1; - ok = 0; - } - } - } - - /* - * This fixes the timing problems of the PAS due to the Symphony chipset - * as per Media Vision. Only define this if your PAS doesn't work correctly. - */ - - if(symphony) - { - outb((0x05), 0xa8); - outb((0x60), 0xa9); - } - - if(broken_bus_clock) - pas_write(0x01 | 0x10 | 0x20 | 0x04, 0x8388); - else - /* - * pas_write(0x01, 0x8388); - */ - pas_write(0x01 | 0x10 | 0x20, 0x8388); - - pas_write(0x18, 0x838A); /* ??? */ - pas_write(0x20 | 0x01, 0x0B8A); /* Mute off, filter = 17.897 kHz */ - pas_write(8, 0xBF8A); - - mix_write(0x80 | 5, 0x078B); - mix_write(5, 0x078B); - - { - struct address_info *sb_config; - - sb_config = &cfg2; - if (sb_config->io_base) - { - unsigned char irq_dma; - - /* - * Turn on Sound Blaster compatibility - * bit 1 = SB emulation - * bit 0 = MPU401 emulation (CDPC only :-( ) - */ - - pas_write(0x02, 0xF788); - - /* - * "Emulation address" - */ - - pas_write((sb_config->io_base >> 4) & 0x0f, 0xF789); - pas_sb_base = sb_config->io_base; - - if (!sb_dma_bits[sb_config->dma]) - printk(KERN_ERR "PAS16 Warning: Invalid SB DMA %d\n\n", sb_config->dma); - - if (!sb_irq_bits[sb_config->irq]) - printk(KERN_ERR "PAS16 Warning: Invalid SB IRQ %d\n\n", sb_config->irq); - - irq_dma = sb_dma_bits[sb_config->dma] | - sb_irq_bits[sb_config->irq]; - - pas_write(irq_dma, 0xFB8A); - } - else - pas_write(0x00, 0xF788); - } - - if (!ok) - printk(KERN_WARNING "PAS16: Driver not enabled\n"); - - return ok; -} - -static int __init detect_pas_hw(struct address_info *hw_config) -{ - unsigned char board_id, foo; - - /* - * WARNING: Setting an option like W:1 or so that disables warm boot reset - * of the card will screw up this detect code something fierce. Adding code - * to handle this means possibly interfering with other cards on the bus if - * you have something on base port 0x388. SO be forewarned. - */ - - outb((0xBC), 0x9A01); /* Activate first board */ - outb((hw_config->io_base >> 2), 0x9A01); /* Set base address */ - pas_translate_code = hw_config->io_base - 0x388; - pas_write(1, 0xBF88); /* Select one wait states */ - - board_id = pas_read(0x0B8B); - - if (board_id == 0xff) - return 0; - - /* - * We probably have a PAS-series board, now check for a PAS16-series board - * by trying to change the board revision bits. PAS16-series hardware won't - * let you do this - the bits are read-only. - */ - - foo = board_id ^ 0xe0; - - pas_write(foo, 0x0B8B); - foo = pas_read(0x0B8B); - pas_write(board_id, 0x0B8B); - - if (board_id != foo) - return 0; - - pas_model = pas_read(0xFF88); - - return pas_model; -} - -static void __init attach_pas_card(struct address_info *hw_config) -{ - pas_irq = hw_config->irq; - - if (detect_pas_hw(hw_config)) - { - - if ((pas_model = pas_read(0xFF88))) - { - char temp[100]; - - if (pas_model < 0 || - pas_model >= ARRAY_SIZE(pas_model_names)) { - printk(KERN_ERR "pas2 unrecognized model.\n"); - return; - } - sprintf(temp, - "%s rev %d", pas_model_names[(int) pas_model], - pas_read(0x2789)); - conf_printf(temp, hw_config); - } - if (config_pas_hw(hw_config)) - { - pas_pcm_init(hw_config); - pas_midi_init(); - pas_init_mixer(); - } - } -} - -static inline int __init probe_pas(struct address_info *hw_config) -{ - return detect_pas_hw(hw_config); -} - -static void __exit unload_pas(struct address_info *hw_config) -{ - extern int pas_audiodev; - extern int pas2_mididev; - - if (hw_config->dma>0) - sound_free_dma(hw_config->dma); - if (hw_config->irq>0) - free_irq(hw_config->irq, hw_config); - - if(pas_audiodev!=-1) - sound_unload_mixerdev(audio_devs[pas_audiodev]->mixer_dev); - if(pas2_mididev!=-1) - sound_unload_mididev(pas2_mididev); - if(pas_audiodev!=-1) - sound_unload_audiodev(pas_audiodev); -} - -static int __initdata io = -1; -static int __initdata irq = -1; -static int __initdata dma = -1; -static int __initdata dma16 = -1; /* Set this for modules that need it */ - -static int __initdata sb_io = 0; -static int __initdata sb_irq = -1; -static int __initdata sb_dma = -1; -static int __initdata sb_dma16 = -1; - -module_param_hw(io, int, ioport, 0); -module_param_hw(irq, int, irq, 0); -module_param_hw(dma, int, dma, 0); -module_param_hw(dma16, int, dma, 0); - -module_param_hw(sb_io, int, ioport, 0); -module_param_hw(sb_irq, int, irq, 0); -module_param_hw(sb_dma, int, dma, 0); -module_param_hw(sb_dma16, int, dma, 0); - -module_param(joystick, bool, 0); -module_param(symphony, bool, 0); -module_param(broken_bus_clock, bool, 0); - -MODULE_LICENSE("GPL"); - -static int __init init_pas2(void) -{ - printk(KERN_INFO "Pro Audio Spectrum driver Copyright (C) by Hannu Savolainen 1993-1996\n"); - - cfg.io_base = io; - cfg.irq = irq; - cfg.dma = dma; - cfg.dma2 = dma16; - - cfg2.io_base = sb_io; - cfg2.irq = sb_irq; - cfg2.dma = sb_dma; - cfg2.dma2 = sb_dma16; - - if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) { - printk(KERN_INFO "I/O, IRQ, DMA and type are mandatory\n"); - return -EINVAL; - } - - if (!probe_pas(&cfg)) - return -ENODEV; - attach_pas_card(&cfg); - - return 0; -} - -static void __exit cleanup_pas2(void) -{ - unload_pas(&cfg); -} - -module_init(init_pas2); -module_exit(cleanup_pas2); - -#ifndef MODULE -static int __init setup_pas2(char *str) -{ - /* io, irq, dma, dma2, sb_io, sb_irq, sb_dma, sb_dma2 */ - int ints[9]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - io = ints[1]; - irq = ints[2]; - dma = ints[3]; - dma16 = ints[4]; - - sb_io = ints[5]; - sb_irq = ints[6]; - sb_dma = ints[7]; - sb_dma16 = ints[8]; - - return 1; -} - -__setup("pas2=", setup_pas2); -#endif diff --git a/sound/oss/pas2_midi.c b/sound/oss/pas2_midi.c deleted file mode 100644 index 1122d10a20c3..000000000000 --- a/sound/oss/pas2_midi.c +++ /dev/null @@ -1,262 +0,0 @@ -/* - * sound/oss/pas2_midi.c - * - * The low level driver for the PAS Midi Interface. - */ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * Bartlomiej Zolnierkiewicz : Added __init to pas_init_mixer() - */ - -#include -#include -#include "sound_config.h" - -#include "pas2.h" - -extern spinlock_t pas_lock; - -static int midi_busy, input_opened; -static int my_dev; - -int pas2_mididev=-1; - -static unsigned char tmp_queue[256]; -static volatile int qlen; -static volatile unsigned char qhead, qtail; - -static void (*midi_input_intr) (int dev, unsigned char data); - -static int pas_midi_open(int dev, int mode, - void (*input) (int dev, unsigned char data), - void (*output) (int dev) -) -{ - int err; - unsigned long flags; - unsigned char ctrl; - - - if (midi_busy) - return -EBUSY; - - /* - * Reset input and output FIFO pointers - */ - pas_write(0x20 | 0x40, - 0x178b); - - spin_lock_irqsave(&pas_lock, flags); - - if ((err = pas_set_intr(0x10)) < 0) - { - spin_unlock_irqrestore(&pas_lock, flags); - return err; - } - /* - * Enable input available and output FIFO empty interrupts - */ - - ctrl = 0; - input_opened = 0; - midi_input_intr = input; - - if (mode == OPEN_READ || mode == OPEN_READWRITE) - { - ctrl |= 0x04; /* Enable input */ - input_opened = 1; - } - if (mode == OPEN_WRITE || mode == OPEN_READWRITE) - { - ctrl |= 0x08 | 0x10; /* Enable output */ - } - pas_write(ctrl, 0x178b); - - /* - * Acknowledge any pending interrupts - */ - - pas_write(0xff, 0x1B88); - - spin_unlock_irqrestore(&pas_lock, flags); - - midi_busy = 1; - qlen = qhead = qtail = 0; - return 0; -} - -static void pas_midi_close(int dev) -{ - - /* - * Reset FIFO pointers, disable intrs - */ - pas_write(0x20 | 0x40, 0x178b); - - pas_remove_intr(0x10); - midi_busy = 0; -} - -static int dump_to_midi(unsigned char midi_byte) -{ - int fifo_space, x; - - fifo_space = ((x = pas_read(0x1B89)) >> 4) & 0x0f; - - /* - * The MIDI FIFO space register and it's documentation is nonunderstandable. - * There seem to be no way to differentiate between buffer full and buffer - * empty situations. For this reason we don't never write the buffer - * completely full. In this way we can assume that 0 (or is it 15) - * means that the buffer is empty. - */ - - if (fifo_space < 2 && fifo_space != 0) /* Full (almost) */ - return 0; /* Ask upper layers to retry after some time */ - - pas_write(midi_byte, 0x178A); - - return 1; -} - -static int pas_midi_out(int dev, unsigned char midi_byte) -{ - - unsigned long flags; - - /* - * Drain the local queue first - */ - - spin_lock_irqsave(&pas_lock, flags); - - while (qlen && dump_to_midi(tmp_queue[qhead])) - { - qlen--; - qhead++; - } - - spin_unlock_irqrestore(&pas_lock, flags); - - /* - * Output the byte if the local queue is empty. - */ - - if (!qlen) - if (dump_to_midi(midi_byte)) - return 1; - - /* - * Put to the local queue - */ - - if (qlen >= 256) - return 0; /* Local queue full */ - - spin_lock_irqsave(&pas_lock, flags); - - tmp_queue[qtail] = midi_byte; - qlen++; - qtail++; - - spin_unlock_irqrestore(&pas_lock, flags); - - return 1; -} - -static int pas_midi_start_read(int dev) -{ - return 0; -} - -static int pas_midi_end_read(int dev) -{ - return 0; -} - -static void pas_midi_kick(int dev) -{ -} - -static int pas_buffer_status(int dev) -{ - return qlen; -} - -#define MIDI_SYNTH_NAME "Pro Audio Spectrum Midi" -#define MIDI_SYNTH_CAPS SYNTH_CAP_INPUT -#include "midi_synth.h" - -static struct midi_operations pas_midi_operations = -{ - .owner = THIS_MODULE, - .info = {"Pro Audio Spectrum", 0, 0, SNDCARD_PAS}, - .converter = &std_midi_synth, - .in_info = {0}, - .open = pas_midi_open, - .close = pas_midi_close, - .outputc = pas_midi_out, - .start_read = pas_midi_start_read, - .end_read = pas_midi_end_read, - .kick = pas_midi_kick, - .buffer_status = pas_buffer_status, -}; - -void __init pas_midi_init(void) -{ - int dev = sound_alloc_mididev(); - - if (dev == -1) - { - printk(KERN_WARNING "pas_midi_init: Too many midi devices detected\n"); - return; - } - std_midi_synth.midi_dev = my_dev = dev; - midi_devs[dev] = &pas_midi_operations; - pas2_mididev = dev; - sequencer_init(); -} - -void pas_midi_interrupt(void) -{ - unsigned char stat; - int i, incount; - - stat = pas_read(0x1B88); - - if (stat & 0x04) /* Input data available */ - { - incount = pas_read(0x1B89) & 0x0f; /* Input FIFO size */ - if (!incount) - incount = 16; - - for (i = 0; i < incount; i++) - if (input_opened) - { - midi_input_intr(my_dev, pas_read(0x178A)); - } else - pas_read(0x178A); /* Flush */ - } - if (stat & (0x08 | 0x10)) - { - spin_lock(&pas_lock);/* called in irq context */ - - while (qlen && dump_to_midi(tmp_queue[qhead])) - { - qlen--; - qhead++; - } - - spin_unlock(&pas_lock); - } - if (stat & 0x40) - { - printk(KERN_WARNING "MIDI output overrun %x,%x\n", pas_read(0x1B89), stat); - } - pas_write(stat, 0x1B88); /* Acknowledge interrupts */ -} diff --git a/sound/oss/pas2_mixer.c b/sound/oss/pas2_mixer.c deleted file mode 100644 index 50b5bd501247..000000000000 --- a/sound/oss/pas2_mixer.c +++ /dev/null @@ -1,327 +0,0 @@ - -/* - * sound/oss/pas2_mixer.c - * - * Mixer routines for the Pro Audio Spectrum cards. - */ - -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ -/* - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * Bartlomiej Zolnierkiewicz : added __init to pas_init_mixer() - */ -#include -#include "sound_config.h" - -#include "pas2.h" - -extern int pas_translate_code; -extern char pas_model; -extern int *pas_osp; -extern int pas_audiodev; - -static int rec_devices = (SOUND_MASK_MIC); /* Default recording source */ -static int mode_control; - -#define POSSIBLE_RECORDING_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_MIC | \ - SOUND_MASK_CD | SOUND_MASK_ALTPCM) - -#define SUPPORTED_MIXER_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_MIC | \ - SOUND_MASK_CD | SOUND_MASK_ALTPCM | SOUND_MASK_IMIX | \ - SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE | SOUND_MASK_RECLEV) - -static int *levels; - -static int default_levels[32] = -{ - 0x3232, /* Master Volume */ - 0x3232, /* Bass */ - 0x3232, /* Treble */ - 0x5050, /* FM */ - 0x4b4b, /* PCM */ - 0x3232, /* PC Speaker */ - 0x4b4b, /* Ext Line */ - 0x4b4b, /* Mic */ - 0x4b4b, /* CD */ - 0x6464, /* Recording monitor */ - 0x4b4b, /* SB PCM */ - 0x6464 /* Recording level */ -}; - -void -mix_write(unsigned char data, int ioaddr) -{ - /* - * The Revision D cards have a problem with their MVA508 interface. The - * kludge-o-rama fix is to make a 16-bit quantity with identical LSB and - * MSBs out of the output byte and to do a 16-bit out to the mixer port - - * 1. We need to do this because it isn't timing problem but chip access - * sequence problem. - */ - - if (pas_model == 4) - { - outw(data | (data << 8), (ioaddr + pas_translate_code) - 1); - outb((0x80), 0); - } else - pas_write(data, ioaddr); -} - -static int -mixer_output(int right_vol, int left_vol, int div, int bits, - int mixer) /* Input or output mixer */ -{ - int left = left_vol * div / 100; - int right = right_vol * div / 100; - - - if (bits & 0x10) - { - left |= mixer; - right |= mixer; - } - if (bits == 0x03 || bits == 0x04) - { - mix_write(0x80 | bits, 0x078B); - mix_write(left, 0x078B); - right_vol = left_vol; - } else - { - mix_write(0x80 | 0x20 | bits, 0x078B); - mix_write(left, 0x078B); - mix_write(0x80 | 0x40 | bits, 0x078B); - mix_write(right, 0x078B); - } - - return (left_vol | (right_vol << 8)); -} - -static void -set_mode(int new_mode) -{ - mix_write(0x80 | 0x05, 0x078B); - mix_write(new_mode, 0x078B); - - mode_control = new_mode; -} - -static int -pas_mixer_set(int whichDev, unsigned int level) -{ - int left, right, devmask, changed, i, mixer = 0; - - left = level & 0x7f; - right = (level & 0x7f00) >> 8; - - if (whichDev < SOUND_MIXER_NRDEVICES) { - if ((1 << whichDev) & rec_devices) - mixer = 0x20; - else - mixer = 0x00; - } - - switch (whichDev) - { - case SOUND_MIXER_VOLUME: /* Master volume (0-63) */ - levels[whichDev] = mixer_output(right, left, 63, 0x01, 0); - break; - - /* - * Note! Bass and Treble are mono devices. Will use just the left - * channel. - */ - case SOUND_MIXER_BASS: /* Bass (0-12) */ - levels[whichDev] = mixer_output(right, left, 12, 0x03, 0); - break; - case SOUND_MIXER_TREBLE: /* Treble (0-12) */ - levels[whichDev] = mixer_output(right, left, 12, 0x04, 0); - break; - - case SOUND_MIXER_SYNTH: /* Internal synthesizer (0-31) */ - levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x00, mixer); - break; - case SOUND_MIXER_PCM: /* PAS PCM (0-31) */ - levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x05, mixer); - break; - case SOUND_MIXER_ALTPCM: /* SB PCM (0-31) */ - levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x07, mixer); - break; - case SOUND_MIXER_SPEAKER: /* PC speaker (0-31) */ - levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x06, mixer); - break; - case SOUND_MIXER_LINE: /* External line (0-31) */ - levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x02, mixer); - break; - case SOUND_MIXER_CD: /* CD (0-31) */ - levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x03, mixer); - break; - case SOUND_MIXER_MIC: /* External microphone (0-31) */ - levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x04, mixer); - break; - case SOUND_MIXER_IMIX: /* Recording monitor (0-31) (Output mixer only) */ - levels[whichDev] = mixer_output(right, left, 31, 0x10 | 0x01, - 0x00); - break; - case SOUND_MIXER_RECLEV: /* Recording level (0-15) */ - levels[whichDev] = mixer_output(right, left, 15, 0x02, 0); - break; - - - case SOUND_MIXER_RECSRC: - devmask = level & POSSIBLE_RECORDING_DEVICES; - - changed = devmask ^ rec_devices; - rec_devices = devmask; - - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) - if (changed & (1 << i)) - { - pas_mixer_set(i, levels[i]); - } - return rec_devices; - break; - - default: - return -EINVAL; - } - - return (levels[whichDev]); -} - -/*****/ - -static void -pas_mixer_reset(void) -{ - int foo; - - for (foo = 0; foo < SOUND_MIXER_NRDEVICES; foo++) - pas_mixer_set(foo, levels[foo]); - - set_mode(0x04 | 0x01); -} - -static int pas_mixer_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - int level,v ; - int __user *p = (int __user *)arg; - - if (cmd == SOUND_MIXER_PRIVATE1) { /* Set loudness bit */ - if (get_user(level, p)) - return -EFAULT; - if (level == -1) /* Return current settings */ - level = (mode_control & 0x04); - else { - mode_control &= ~0x04; - if (level) - mode_control |= 0x04; - set_mode(mode_control); - } - level = !!level; - return put_user(level, p); - } - if (cmd == SOUND_MIXER_PRIVATE2) { /* Set enhance bit */ - if (get_user(level, p)) - return -EFAULT; - if (level == -1) { /* Return current settings */ - if (!(mode_control & 0x03)) - level = 0; - else - level = ((mode_control & 0x03) + 1) * 20; - } else { - int i = 0; - - level &= 0x7f; - if (level) - i = (level / 20) - 1; - mode_control &= ~0x03; - mode_control |= i & 0x03; - set_mode(mode_control); - if (i) - i = (i + 1) * 20; - level = i; - } - return put_user(level, p); - } - if (cmd == SOUND_MIXER_PRIVATE3) { /* Set mute bit */ - if (get_user(level, p)) - return -EFAULT; - if (level == -1) /* Return current settings */ - level = !(pas_read(0x0B8A) & 0x20); - else { - if (level) - pas_write(pas_read(0x0B8A) & (~0x20), 0x0B8A); - else - pas_write(pas_read(0x0B8A) | 0x20, 0x0B8A); - - level = !(pas_read(0x0B8A) & 0x20); - } - return put_user(level, p); - } - if (((cmd >> 8) & 0xff) == 'M') { - if (get_user(v, p)) - return -EFAULT; - if (_SIOC_DIR(cmd) & _SIOC_WRITE) { - v = pas_mixer_set(cmd & 0xff, v); - } else { - switch (cmd & 0xff) { - case SOUND_MIXER_RECSRC: - v = rec_devices; - break; - - case SOUND_MIXER_STEREODEVS: - v = SUPPORTED_MIXER_DEVICES & ~(SOUND_MASK_BASS | SOUND_MASK_TREBLE); - break; - - case SOUND_MIXER_DEVMASK: - v = SUPPORTED_MIXER_DEVICES; - break; - - case SOUND_MIXER_RECMASK: - v = POSSIBLE_RECORDING_DEVICES & SUPPORTED_MIXER_DEVICES; - break; - - case SOUND_MIXER_CAPS: - v = 0; /* No special capabilities */ - break; - - default: - v = levels[cmd & 0xff]; - break; - } - } - return put_user(v, p); - } - return -EINVAL; -} - -static struct mixer_operations pas_mixer_operations = -{ - .owner = THIS_MODULE, - .id = "PAS16", - .name = "Pro Audio Spectrum 16", - .ioctl = pas_mixer_ioctl -}; - -int __init -pas_init_mixer(void) -{ - int d; - - levels = load_mixer_volumes("PAS16_1", default_levels, 1); - - pas_mixer_reset(); - - if ((d = sound_alloc_mixerdev()) != -1) - { - audio_devs[pas_audiodev]->mixer_dev = d; - mixer_devs[d] = &pas_mixer_operations; - } - return 1; -} diff --git a/sound/oss/pas2_pcm.c b/sound/oss/pas2_pcm.c deleted file mode 100644 index 474803b52f7d..000000000000 --- a/sound/oss/pas2_pcm.c +++ /dev/null @@ -1,419 +0,0 @@ -/* - * pas2_pcm.c Audio routines for PAS16 - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * Alan Cox : Swatted a double allocation of device bug. Made a few - * more things module options. - * Bartlomiej Zolnierkiewicz : Added __init to pas_pcm_init() - */ - -#include -#include -#include -#include "sound_config.h" - -#include "pas2.h" - -#define PAS_PCM_INTRBITS (0x08) -/* - * Sample buffer timer interrupt enable - */ - -#define PCM_NON 0 -#define PCM_DAC 1 -#define PCM_ADC 2 - -static unsigned long pcm_speed; /* sampling rate */ -static unsigned char pcm_channels = 1; /* channels (1 or 2) */ -static unsigned char pcm_bits = 8; /* bits/sample (8 or 16) */ -static unsigned char pcm_filter; /* filter FLAG */ -static unsigned char pcm_mode = PCM_NON; -static unsigned long pcm_count; -static unsigned short pcm_bitsok = 8; /* mask of OK bits */ -static int pcm_busy; -int pas_audiodev = -1; -static int open_mode; - -extern spinlock_t pas_lock; - -static int pcm_set_speed(int arg) -{ - int foo, tmp; - unsigned long flags; - - if (arg == 0) - return pcm_speed; - - if (arg > 44100) - arg = 44100; - if (arg < 5000) - arg = 5000; - - if (pcm_channels & 2) - { - foo = ((PIT_TICK_RATE / 2) + (arg / 2)) / arg; - arg = ((PIT_TICK_RATE / 2) + (foo / 2)) / foo; - } - else - { - foo = (PIT_TICK_RATE + (arg / 2)) / arg; - arg = (PIT_TICK_RATE + (foo / 2)) / foo; - } - - pcm_speed = arg; - - tmp = pas_read(0x0B8A); - - /* - * Set anti-aliasing filters according to sample rate. You really *NEED* - * to enable this feature for all normal recording unless you want to - * experiment with aliasing effects. - * These filters apply to the selected "recording" source. - * I (pfw) don't know the encoding of these 5 bits. The values shown - * come from the SDK found on ftp.uwp.edu:/pub/msdos/proaudio/. - * - * I cleared bit 5 of these values, since that bit controls the master - * mute flag. (Olav Wölfelschneider) - * - */ -#if !defined NO_AUTO_FILTER_SET - tmp &= 0xe0; - if (pcm_speed >= 2 * 17897) - tmp |= 0x01; - else if (pcm_speed >= 2 * 15909) - tmp |= 0x02; - else if (pcm_speed >= 2 * 11931) - tmp |= 0x09; - else if (pcm_speed >= 2 * 8948) - tmp |= 0x11; - else if (pcm_speed >= 2 * 5965) - tmp |= 0x19; - else if (pcm_speed >= 2 * 2982) - tmp |= 0x04; - pcm_filter = tmp; -#endif - - spin_lock_irqsave(&pas_lock, flags); - - pas_write(tmp & ~(0x40 | 0x80), 0x0B8A); - pas_write(0x00 | 0x30 | 0x04, 0x138B); - pas_write(foo & 0xff, 0x1388); - pas_write((foo >> 8) & 0xff, 0x1388); - pas_write(tmp, 0x0B8A); - - spin_unlock_irqrestore(&pas_lock, flags); - - return pcm_speed; -} - -static int pcm_set_channels(int arg) -{ - - if ((arg != 1) && (arg != 2)) - return pcm_channels; - - if (arg != pcm_channels) - { - pas_write(pas_read(0xF8A) ^ 0x20, 0xF8A); - - pcm_channels = arg; - pcm_set_speed(pcm_speed); /* The speed must be reinitialized */ - } - return pcm_channels; -} - -static int pcm_set_bits(int arg) -{ - if (arg == 0) - return pcm_bits; - - if ((arg & pcm_bitsok) != arg) - return pcm_bits; - - if (arg != pcm_bits) - { - pas_write(pas_read(0x8389) ^ 0x04, 0x8389); - - pcm_bits = arg; - } - return pcm_bits; -} - -static int pas_audio_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - int val, ret; - int __user *p = arg; - - switch (cmd) - { - case SOUND_PCM_WRITE_RATE: - if (get_user(val, p)) - return -EFAULT; - ret = pcm_set_speed(val); - break; - - case SOUND_PCM_READ_RATE: - ret = pcm_speed; - break; - - case SNDCTL_DSP_STEREO: - if (get_user(val, p)) - return -EFAULT; - ret = pcm_set_channels(val + 1) - 1; - break; - - case SOUND_PCM_WRITE_CHANNELS: - if (get_user(val, p)) - return -EFAULT; - ret = pcm_set_channels(val); - break; - - case SOUND_PCM_READ_CHANNELS: - ret = pcm_channels; - break; - - case SNDCTL_DSP_SETFMT: - if (get_user(val, p)) - return -EFAULT; - ret = pcm_set_bits(val); - break; - - case SOUND_PCM_READ_BITS: - ret = pcm_bits; - break; - - default: - return -EINVAL; - } - return put_user(ret, p); -} - -static void pas_audio_reset(int dev) -{ - pas_write(pas_read(0xF8A) & ~0x40, 0xF8A); /* Disable PCM */ -} - -static int pas_audio_open(int dev, int mode) -{ - int err; - unsigned long flags; - - spin_lock_irqsave(&pas_lock, flags); - if (pcm_busy) - { - spin_unlock_irqrestore(&pas_lock, flags); - return -EBUSY; - } - pcm_busy = 1; - spin_unlock_irqrestore(&pas_lock, flags); - - if ((err = pas_set_intr(PAS_PCM_INTRBITS)) < 0) - return err; - - - pcm_count = 0; - open_mode = mode; - - return 0; -} - -static void pas_audio_close(int dev) -{ - unsigned long flags; - - spin_lock_irqsave(&pas_lock, flags); - - pas_audio_reset(dev); - pas_remove_intr(PAS_PCM_INTRBITS); - pcm_mode = PCM_NON; - - pcm_busy = 0; - spin_unlock_irqrestore(&pas_lock, flags); -} - -static void pas_audio_output_block(int dev, unsigned long buf, int count, - int intrflag) -{ - unsigned long flags, cnt; - - cnt = count; - if (audio_devs[dev]->dmap_out->dma > 3) - cnt >>= 1; - - if (audio_devs[dev]->flags & DMA_AUTOMODE && - intrflag && - cnt == pcm_count) - return; - - spin_lock_irqsave(&pas_lock, flags); - - pas_write(pas_read(0xF8A) & ~0x40, - 0xF8A); - - /* DMAbuf_start_dma (dev, buf, count, DMA_MODE_WRITE); */ - - if (audio_devs[dev]->dmap_out->dma > 3) - count >>= 1; - - if (count != pcm_count) - { - pas_write(pas_read(0x0B8A) & ~0x80, 0x0B8A); - pas_write(0x40 | 0x30 | 0x04, 0x138B); - pas_write(count & 0xff, 0x1389); - pas_write((count >> 8) & 0xff, 0x1389); - pas_write(pas_read(0x0B8A) | 0x80, 0x0B8A); - - pcm_count = count; - } - pas_write(pas_read(0x0B8A) | 0x80 | 0x40, 0x0B8A); -#ifdef NO_TRIGGER - pas_write(pas_read(0xF8A) | 0x40 | 0x10, 0xF8A); -#endif - - pcm_mode = PCM_DAC; - - spin_unlock_irqrestore(&pas_lock, flags); -} - -static void pas_audio_start_input(int dev, unsigned long buf, int count, - int intrflag) -{ - unsigned long flags; - int cnt; - - cnt = count; - if (audio_devs[dev]->dmap_out->dma > 3) - cnt >>= 1; - - if (audio_devs[pas_audiodev]->flags & DMA_AUTOMODE && - intrflag && - cnt == pcm_count) - return; - - spin_lock_irqsave(&pas_lock, flags); - - /* DMAbuf_start_dma (dev, buf, count, DMA_MODE_READ); */ - - if (audio_devs[dev]->dmap_out->dma > 3) - count >>= 1; - - if (count != pcm_count) - { - pas_write(pas_read(0x0B8A) & ~0x80, 0x0B8A); - pas_write(0x40 | 0x30 | 0x04, 0x138B); - pas_write(count & 0xff, 0x1389); - pas_write((count >> 8) & 0xff, 0x1389); - pas_write(pas_read(0x0B8A) | 0x80, 0x0B8A); - - pcm_count = count; - } - pas_write(pas_read(0x0B8A) | 0x80 | 0x40, 0x0B8A); -#ifdef NO_TRIGGER - pas_write((pas_read(0xF8A) | 0x40) & ~0x10, 0xF8A); -#endif - - pcm_mode = PCM_ADC; - - spin_unlock_irqrestore(&pas_lock, flags); -} - -#ifndef NO_TRIGGER -static void pas_audio_trigger(int dev, int state) -{ - unsigned long flags; - - spin_lock_irqsave(&pas_lock, flags); - state &= open_mode; - - if (state & PCM_ENABLE_OUTPUT) - pas_write(pas_read(0xF8A) | 0x40 | 0x10, 0xF8A); - else if (state & PCM_ENABLE_INPUT) - pas_write((pas_read(0xF8A) | 0x40) & ~0x10, 0xF8A); - else - pas_write(pas_read(0xF8A) & ~0x40, 0xF8A); - - spin_unlock_irqrestore(&pas_lock, flags); -} -#endif - -static int pas_audio_prepare_for_input(int dev, int bsize, int bcount) -{ - pas_audio_reset(dev); - return 0; -} - -static int pas_audio_prepare_for_output(int dev, int bsize, int bcount) -{ - pas_audio_reset(dev); - return 0; -} - -static struct audio_driver pas_audio_driver = -{ - .owner = THIS_MODULE, - .open = pas_audio_open, - .close = pas_audio_close, - .output_block = pas_audio_output_block, - .start_input = pas_audio_start_input, - .ioctl = pas_audio_ioctl, - .prepare_for_input = pas_audio_prepare_for_input, - .prepare_for_output = pas_audio_prepare_for_output, - .halt_io = pas_audio_reset, - .trigger = pas_audio_trigger -}; - -void __init pas_pcm_init(struct address_info *hw_config) -{ - pcm_bitsok = 8; - if (pas_read(0xEF8B) & 0x08) - pcm_bitsok |= 16; - - pcm_set_speed(DSP_DEFAULT_SPEED); - - if ((pas_audiodev = sound_install_audiodrv(AUDIO_DRIVER_VERSION, - "Pro Audio Spectrum", - &pas_audio_driver, - sizeof(struct audio_driver), - DMA_AUTOMODE, - AFMT_U8 | AFMT_S16_LE, - NULL, - hw_config->dma, - hw_config->dma)) < 0) - printk(KERN_WARNING "PAS16: Too many PCM devices available\n"); -} - -void pas_pcm_interrupt(unsigned char status, int cause) -{ - if (cause == 1) - { - /* - * Halt the PCM first. Otherwise we don't have time to start a new - * block before the PCM chip proceeds to the next sample - */ - - if (!(audio_devs[pas_audiodev]->flags & DMA_AUTOMODE)) - pas_write(pas_read(0xF8A) & ~0x40, 0xF8A); - - switch (pcm_mode) - { - case PCM_DAC: - DMAbuf_outputintr(pas_audiodev, 1); - break; - - case PCM_ADC: - DMAbuf_inputintr(pas_audiodev); - break; - - default: - printk(KERN_WARNING "PAS: Unexpected PCM interrupt\n"); - } - } -} diff --git a/sound/oss/pss.c b/sound/oss/pss.c deleted file mode 100644 index 33c3a442e162..000000000000 --- a/sound/oss/pss.c +++ /dev/null @@ -1,1270 +0,0 @@ -/* - * sound/oss/pss.c - * - * The low level driver for the Personal Sound System (ECHO ESC614). - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * Thomas Sailer ioctl code reworked (vmalloc/vfree removed) - * Alan Cox modularisation, clean up. - * - * 98-02-21: Vladimir Michl - * Added mixer device for Beethoven ADSP-16 (master volume, - * bass, treble, synth), only for speakers. - * Fixed bug in pss_write (exchange parameters) - * Fixed config port of SB - * Requested two regions for PSS (PSS mixer, PSS config) - * Modified pss_download_boot - * To probe_pss_mss added test for initialize AD1848 - * 98-05-28: Vladimir Michl - * Fixed computation of mixer volumes - * 04-05-1999: Anthony Barbachan - * Added code that allows the user to enable his cdrom and/or - * joystick through the module parameters pss_cdrom_port and - * pss_enable_joystick. pss_cdrom_port takes a port address as its - * argument. pss_enable_joystick takes either a 0 or a non-0 as its - * argument. - * 04-06-1999: Anthony Barbachan - * Separated some code into new functions for easier reuse. - * Cleaned up and streamlined new code. Added code to allow a user - * to only use this driver for enabling non-sound components - * through the new module parameter pss_no_sound (flag). Added - * code that would allow a user to decide whether the driver should - * reset the configured hardware settings for the PSS board through - * the module parameter pss_keep_settings (flag). This flag will - * allow a user to free up resources in use by this card if needbe, - * furthermore it allows him to use this driver to just enable the - * emulations and then be unloaded as it is no longer needed. Both - * new settings are only available to this driver if compiled as a - * module. The default settings of all new parameters are set to - * load the driver as it did in previous versions. - * 04-07-1999: Anthony Barbachan - * Added module parameter pss_firmware to allow the user to tell - * the driver where the firmware file is located. The default - * setting is the previous hardcoded setting "/etc/sound/pss_synth". - * 00-03-03: Christoph Hellwig - * Adapted to module_init/module_exit - * 11-10-2000: Bartlomiej Zolnierkiewicz - * Added __init to probe_pss(), attach_pss() and probe_pss_mpu() - * 02-Jan-2001: Chris Rankin - * Specify that this module owns the coprocessor - */ - - -#include -#include -#include - -#include "sound_config.h" -#include "sound_firmware.h" - -#include "ad1848.h" -#include "mpu401.h" - -/* - * PSS registers. - */ -#define REG(x) (devc->base+x) -#define PSS_DATA 0 -#define PSS_STATUS 2 -#define PSS_CONTROL 2 -#define PSS_ID 4 -#define PSS_IRQACK 4 -#define PSS_PIO 0x1a - -/* - * Config registers - */ -#define CONF_PSS 0x10 -#define CONF_WSS 0x12 -#define CONF_SB 0x14 -#define CONF_CDROM 0x16 -#define CONF_MIDI 0x18 - -/* - * Status bits. - */ -#define PSS_FLAG3 0x0800 -#define PSS_FLAG2 0x0400 -#define PSS_FLAG1 0x1000 -#define PSS_FLAG0 0x0800 -#define PSS_WRITE_EMPTY 0x8000 -#define PSS_READ_FULL 0x4000 - -/* - * WSS registers - */ -#define WSS_INDEX 4 -#define WSS_DATA 5 - -/* - * WSS status bits - */ -#define WSS_INITIALIZING 0x80 -#define WSS_AUTOCALIBRATION 0x20 - -#define NO_WSS_MIXER -1 - -#include "coproc.h" - -#include "pss_boot.h" - -/* If compiled into kernel, it enable or disable pss mixer */ -#ifdef CONFIG_PSS_MIXER -static bool pss_mixer = 1; -#else -static bool pss_mixer; -#endif - - -struct pss_mixerdata { - unsigned int volume_l; - unsigned int volume_r; - unsigned int bass; - unsigned int treble; - unsigned int synth; -}; - -struct pss_confdata { - int base; - int irq; - int dma; - int *osp; - struct pss_mixerdata mixer; - int ad_mixer_dev; -}; - -static struct pss_confdata pss_data; -static struct pss_confdata *devc = &pss_data; -static DEFINE_SPINLOCK(lock); - -static int pss_initialized; -static int nonstandard_microcode; -static int pss_cdrom_port = -1; /* Parameter for the PSS cdrom port */ -static bool pss_enable_joystick; /* Parameter for enabling the joystick */ -static coproc_operations pss_coproc_operations; - -static void pss_write(struct pss_confdata *devc, int data) -{ - unsigned long i, limit; - - limit = jiffies + HZ/10; /* The timeout is 0.1 seconds */ - /* - * Note! the i<5000000 is an emergency exit. The dsp_command() is sometimes - * called while interrupts are disabled. This means that the timer is - * disabled also. However the timeout situation is a abnormal condition. - * Normally the DSP should be ready to accept commands after just couple of - * loops. - */ - - for (i = 0; i < 5000000 && time_before(jiffies, limit); i++) - { - if (inw(REG(PSS_STATUS)) & PSS_WRITE_EMPTY) - { - outw(data, REG(PSS_DATA)); - return; - } - } - printk(KERN_WARNING "PSS: DSP Command (%04x) Timeout.\n", data); -} - -static int __init probe_pss(struct address_info *hw_config) -{ - unsigned short id; - int irq, dma; - - devc->base = hw_config->io_base; - irq = devc->irq = hw_config->irq; - dma = devc->dma = hw_config->dma; - devc->osp = hw_config->osp; - - if (devc->base != 0x220 && devc->base != 0x240) - if (devc->base != 0x230 && devc->base != 0x250) /* Some cards use these */ - return 0; - - if (!request_region(devc->base, 0x10, "PSS mixer, SB emulation")) { - printk(KERN_ERR "PSS: I/O port conflict\n"); - return 0; - } - id = inw(REG(PSS_ID)); - if ((id >> 8) != 'E') { - printk(KERN_ERR "No PSS signature detected at 0x%x (0x%x)\n", devc->base, id); - release_region(devc->base, 0x10); - return 0; - } - if (!request_region(devc->base + 0x10, 0x9, "PSS config")) { - printk(KERN_ERR "PSS: I/O port conflict\n"); - release_region(devc->base, 0x10); - return 0; - } - return 1; -} - -static int set_irq(struct pss_confdata *devc, int dev, int irq) -{ - static unsigned short irq_bits[16] = - { - 0x0000, 0x0000, 0x0000, 0x0008, - 0x0000, 0x0010, 0x0000, 0x0018, - 0x0000, 0x0020, 0x0028, 0x0030, - 0x0038, 0x0000, 0x0000, 0x0000 - }; - - unsigned short tmp, bits; - - if (irq < 0 || irq > 15) - return 0; - - tmp = inw(REG(dev)) & ~0x38; /* Load confreg, mask IRQ bits out */ - - if ((bits = irq_bits[irq]) == 0 && irq != 0) - { - printk(KERN_ERR "PSS: Invalid IRQ %d\n", irq); - return 0; - } - outw(tmp | bits, REG(dev)); - return 1; -} - -static void set_io_base(struct pss_confdata *devc, int dev, int base) -{ - unsigned short tmp = inw(REG(dev)) & 0x003f; - unsigned short bits = (base & 0x0ffc) << 4; - - outw(bits | tmp, REG(dev)); -} - -static int set_dma(struct pss_confdata *devc, int dev, int dma) -{ - static unsigned short dma_bits[8] = - { - 0x0001, 0x0002, 0x0000, 0x0003, - 0x0000, 0x0005, 0x0006, 0x0007 - }; - - unsigned short tmp, bits; - - if (dma < 0 || dma > 7) - return 0; - - tmp = inw(REG(dev)) & ~0x07; /* Load confreg, mask DMA bits out */ - - if ((bits = dma_bits[dma]) == 0 && dma != 4) - { - printk(KERN_ERR "PSS: Invalid DMA %d\n", dma); - return 0; - } - outw(tmp | bits, REG(dev)); - return 1; -} - -static int pss_reset_dsp(struct pss_confdata *devc) -{ - unsigned long i, limit = jiffies + HZ/10; - - outw(0x2000, REG(PSS_CONTROL)); - for (i = 0; i < 32768 && time_after_eq(limit, jiffies); i++) - inw(REG(PSS_CONTROL)); - outw(0x0000, REG(PSS_CONTROL)); - return 1; -} - -static int pss_put_dspword(struct pss_confdata *devc, unsigned short word) -{ - int i, val; - - for (i = 0; i < 327680; i++) - { - val = inw(REG(PSS_STATUS)); - if (val & PSS_WRITE_EMPTY) - { - outw(word, REG(PSS_DATA)); - return 1; - } - } - return 0; -} - -static int pss_get_dspword(struct pss_confdata *devc, unsigned short *word) -{ - int i, val; - - for (i = 0; i < 327680; i++) - { - val = inw(REG(PSS_STATUS)); - if (val & PSS_READ_FULL) - { - *word = inw(REG(PSS_DATA)); - return 1; - } - } - return 0; -} - -static int pss_download_boot(struct pss_confdata *devc, unsigned char *block, - int size, int flags) -{ - int i, val, count; - unsigned long limit; - - if (flags & CPF_FIRST) - { -/*_____ Warn DSP software that a boot is coming */ - outw(0x00fe, REG(PSS_DATA)); - - limit = jiffies + HZ/10; - for (i = 0; i < 32768 && time_before(jiffies, limit); i++) - if (inw(REG(PSS_DATA)) == 0x5500) - break; - - outw(*block++, REG(PSS_DATA)); - pss_reset_dsp(devc); - } - count = 1; - while ((flags&CPF_LAST) || count= size && flags & CPF_LAST) - break; - else - { - printk("\n"); - printk(KERN_ERR "PSS: Download timeout problems, byte %d=%d\n", count, size); - return 0; - } - } -/*_____ Send the next byte */ - if (count >= size) - { - /* If not data in block send 0xffff */ - outw (0xffff, REG (PSS_DATA)); - } - else - { - /*_____ Send the next byte */ - outw (*block++, REG (PSS_DATA)); - } - count++; - } - - if (flags & CPF_LAST) - { -/*_____ Why */ - outw(0, REG(PSS_DATA)); - - limit = jiffies + HZ/10; - for (i = 0; i < 32768 && time_after_eq(limit, jiffies); i++) - val = inw(REG(PSS_STATUS)); - - limit = jiffies + HZ/10; - for (i = 0; i < 32768 && time_after_eq(limit, jiffies); i++) - { - val = inw(REG(PSS_STATUS)); - if (val & 0x4000) - break; - } - - /* now read the version */ - for (i = 0; i < 32000; i++) - { - val = inw(REG(PSS_STATUS)); - if (val & PSS_READ_FULL) - break; - } - if (i == 32000) - return 0; - - val = inw(REG(PSS_DATA)); - /* printk( "", val/16, val % 16); */ - } - return 1; -} - -/* Mixer */ -static void set_master_volume(struct pss_confdata *devc, int left, int right) -{ - static unsigned char log_scale[101] = { - 0xdb, 0xe0, 0xe3, 0xe5, 0xe7, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xed, 0xee, - 0xef, 0xef, 0xf0, 0xf0, 0xf1, 0xf1, 0xf2, 0xf2, 0xf2, 0xf3, 0xf3, 0xf3, - 0xf4, 0xf4, 0xf4, 0xf5, 0xf5, 0xf5, 0xf5, 0xf6, 0xf6, 0xf6, 0xf6, 0xf7, - 0xf7, 0xf7, 0xf7, 0xf7, 0xf8, 0xf8, 0xf8, 0xf8, 0xf8, 0xf9, 0xf9, 0xf9, - 0xf9, 0xf9, 0xf9, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0xfa, 0xfb, 0xfb, - 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfb, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, 0xfc, - 0xfc, 0xfc, 0xfc, 0xfc, 0xfd, 0xfd, 0xfd, 0xfd, 0xfd, 0xfd, 0xfd, 0xfd, - 0xfd, 0xfd, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, - 0xfe, 0xfe, 0xff, 0xff, 0xff - }; - pss_write(devc, 0x0010); - pss_write(devc, log_scale[left] | 0x0000); - pss_write(devc, 0x0010); - pss_write(devc, log_scale[right] | 0x0100); -} - -static void set_synth_volume(struct pss_confdata *devc, int volume) -{ - int vol = ((0x8000*volume)/100L); - pss_write(devc, 0x0080); - pss_write(devc, vol); - pss_write(devc, 0x0081); - pss_write(devc, vol); -} - -static void set_bass(struct pss_confdata *devc, int level) -{ - int vol = (int)(((0xfd - 0xf0) * level)/100L) + 0xf0; - pss_write(devc, 0x0010); - pss_write(devc, vol | 0x0200); -}; - -static void set_treble(struct pss_confdata *devc, int level) -{ - int vol = (((0xfd - 0xf0) * level)/100L) + 0xf0; - pss_write(devc, 0x0010); - pss_write(devc, vol | 0x0300); -}; - -static void pss_mixer_reset(struct pss_confdata *devc) -{ - set_master_volume(devc, 33, 33); - set_bass(devc, 50); - set_treble(devc, 50); - set_synth_volume(devc, 30); - pss_write (devc, 0x0010); - pss_write (devc, 0x0800 | 0xce); /* Stereo */ - - if(pss_mixer) - { - devc->mixer.volume_l = devc->mixer.volume_r = 33; - devc->mixer.bass = 50; - devc->mixer.treble = 50; - devc->mixer.synth = 30; - } -} - -static int set_volume_mono(unsigned __user *p, unsigned int *aleft) -{ - unsigned int left, volume; - if (get_user(volume, p)) - return -EFAULT; - - left = volume & 0xff; - if (left > 100) - left = 100; - *aleft = left; - return 0; -} - -static int set_volume_stereo(unsigned __user *p, - unsigned int *aleft, - unsigned int *aright) -{ - unsigned int left, right, volume; - if (get_user(volume, p)) - return -EFAULT; - - left = volume & 0xff; - if (left > 100) - left = 100; - right = (volume >> 8) & 0xff; - if (right > 100) - right = 100; - *aleft = left; - *aright = right; - return 0; -} - -static int ret_vol_mono(int left) -{ - return ((left << 8) | left); -} - -static int ret_vol_stereo(int left, int right) -{ - return ((right << 8) | left); -} - -static int call_ad_mixer(struct pss_confdata *devc, unsigned int cmd, - void __user *arg) -{ - if (devc->ad_mixer_dev != NO_WSS_MIXER) - return mixer_devs[devc->ad_mixer_dev]->ioctl(devc->ad_mixer_dev, cmd, arg); - else - return -EINVAL; -} - -static int pss_mixer_ioctl (int dev, unsigned int cmd, void __user *arg) -{ - struct pss_confdata *devc = mixer_devs[dev]->devc; - int cmdf = cmd & 0xff; - - if ((cmdf != SOUND_MIXER_VOLUME) && (cmdf != SOUND_MIXER_BASS) && - (cmdf != SOUND_MIXER_TREBLE) && (cmdf != SOUND_MIXER_SYNTH) && - (cmdf != SOUND_MIXER_DEVMASK) && (cmdf != SOUND_MIXER_STEREODEVS) && - (cmdf != SOUND_MIXER_RECMASK) && (cmdf != SOUND_MIXER_CAPS) && - (cmdf != SOUND_MIXER_RECSRC)) - { - return call_ad_mixer(devc, cmd, arg); - } - - if (((cmd >> 8) & 0xff) != 'M') - return -EINVAL; - - if (_SIOC_DIR (cmd) & _SIOC_WRITE) - { - switch (cmdf) - { - case SOUND_MIXER_RECSRC: - if (devc->ad_mixer_dev != NO_WSS_MIXER) - return call_ad_mixer(devc, cmd, arg); - else - { - int v; - if (get_user(v, (int __user *)arg)) - return -EFAULT; - if (v != 0) - return -EINVAL; - return 0; - } - case SOUND_MIXER_VOLUME: - if (set_volume_stereo(arg, - &devc->mixer.volume_l, - &devc->mixer.volume_r)) - return -EFAULT; - set_master_volume(devc, devc->mixer.volume_l, - devc->mixer.volume_r); - return ret_vol_stereo(devc->mixer.volume_l, - devc->mixer.volume_r); - - case SOUND_MIXER_BASS: - if (set_volume_mono(arg, &devc->mixer.bass)) - return -EFAULT; - set_bass(devc, devc->mixer.bass); - return ret_vol_mono(devc->mixer.bass); - - case SOUND_MIXER_TREBLE: - if (set_volume_mono(arg, &devc->mixer.treble)) - return -EFAULT; - set_treble(devc, devc->mixer.treble); - return ret_vol_mono(devc->mixer.treble); - - case SOUND_MIXER_SYNTH: - if (set_volume_mono(arg, &devc->mixer.synth)) - return -EFAULT; - set_synth_volume(devc, devc->mixer.synth); - return ret_vol_mono(devc->mixer.synth); - - default: - return -EINVAL; - } - } - else - { - int val, and_mask = 0, or_mask = 0; - /* - * Return parameters - */ - switch (cmdf) - { - case SOUND_MIXER_DEVMASK: - if (call_ad_mixer(devc, cmd, arg) == -EINVAL) - break; - and_mask = ~0; - or_mask = SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE | SOUND_MASK_SYNTH; - break; - - case SOUND_MIXER_STEREODEVS: - if (call_ad_mixer(devc, cmd, arg) == -EINVAL) - break; - and_mask = ~0; - or_mask = SOUND_MASK_VOLUME; - break; - - case SOUND_MIXER_RECMASK: - if (devc->ad_mixer_dev != NO_WSS_MIXER) - return call_ad_mixer(devc, cmd, arg); - break; - - case SOUND_MIXER_CAPS: - if (devc->ad_mixer_dev != NO_WSS_MIXER) - return call_ad_mixer(devc, cmd, arg); - or_mask = SOUND_CAP_EXCL_INPUT; - break; - - case SOUND_MIXER_RECSRC: - if (devc->ad_mixer_dev != NO_WSS_MIXER) - return call_ad_mixer(devc, cmd, arg); - break; - - case SOUND_MIXER_VOLUME: - or_mask = ret_vol_stereo(devc->mixer.volume_l, devc->mixer.volume_r); - break; - - case SOUND_MIXER_BASS: - or_mask = ret_vol_mono(devc->mixer.bass); - break; - - case SOUND_MIXER_TREBLE: - or_mask = ret_vol_mono(devc->mixer.treble); - break; - - case SOUND_MIXER_SYNTH: - or_mask = ret_vol_mono(devc->mixer.synth); - break; - default: - return -EINVAL; - } - if (get_user(val, (int __user *)arg)) - return -EFAULT; - val &= and_mask; - val |= or_mask; - if (put_user(val, (int __user *)arg)) - return -EFAULT; - return val; - } -} - -static struct mixer_operations pss_mixer_operations = -{ - .owner = THIS_MODULE, - .id = "SOUNDPORT", - .name = "PSS-AD1848", - .ioctl = pss_mixer_ioctl -}; - -static void disable_all_emulations(void) -{ - outw(0x0000, REG(CONF_PSS)); /* 0x0400 enables joystick */ - outw(0x0000, REG(CONF_WSS)); - outw(0x0000, REG(CONF_SB)); - outw(0x0000, REG(CONF_MIDI)); - outw(0x0000, REG(CONF_CDROM)); -} - -static void configure_nonsound_components(void) -{ - /* Configure Joystick port */ - - if(pss_enable_joystick) - { - outw(0x0400, REG(CONF_PSS)); /* 0x0400 enables joystick */ - printk(KERN_INFO "PSS: joystick enabled.\n"); - } - else - { - printk(KERN_INFO "PSS: joystick port not enabled.\n"); - } - - /* Configure CDROM port */ - - if (pss_cdrom_port == -1) { /* If cdrom port enablation wasn't requested */ - printk(KERN_INFO "PSS: CDROM port not enabled.\n"); - } else if (!request_region(pss_cdrom_port, 2, "PSS CDROM")) { - pss_cdrom_port = -1; - printk(KERN_ERR "PSS: CDROM I/O port conflict.\n"); - } else { - set_io_base(devc, CONF_CDROM, pss_cdrom_port); - printk(KERN_INFO "PSS: CDROM I/O port set to 0x%x.\n", pss_cdrom_port); - } -} - -static int __init attach_pss(struct address_info *hw_config) -{ - unsigned short id; - char tmp[100]; - - devc->base = hw_config->io_base; - devc->irq = hw_config->irq; - devc->dma = hw_config->dma; - devc->osp = hw_config->osp; - devc->ad_mixer_dev = NO_WSS_MIXER; - - if (!probe_pss(hw_config)) - return 0; - - id = inw(REG(PSS_ID)) & 0x00ff; - - /* - * Disable all emulations. Will be enabled later (if required). - */ - - disable_all_emulations(); - -#ifdef YOU_REALLY_WANT_TO_ALLOCATE_THESE_RESOURCES - if (sound_alloc_dma(hw_config->dma, "PSS")) - { - printk("pss.c: Can't allocate DMA channel.\n"); - release_region(hw_config->io_base, 0x10); - release_region(hw_config->io_base+0x10, 0x9); - return 0; - } - if (!set_irq(devc, CONF_PSS, devc->irq)) - { - printk("PSS: IRQ allocation error.\n"); - release_region(hw_config->io_base, 0x10); - release_region(hw_config->io_base+0x10, 0x9); - return 0; - } - if (!set_dma(devc, CONF_PSS, devc->dma)) - { - printk(KERN_ERR "PSS: DMA allocation error\n"); - release_region(hw_config->io_base, 0x10); - release_region(hw_config->io_base+0x10, 0x9); - return 0; - } -#endif - - configure_nonsound_components(); - pss_initialized = 1; - sprintf(tmp, "ECHO-PSS Rev. %d", id); - conf_printf(tmp, hw_config); - return 1; -} - -static int __init probe_pss_mpu(struct address_info *hw_config) -{ - struct resource *ports; - int timeout; - - if (!pss_initialized) - return 0; - - ports = request_region(hw_config->io_base, 2, "mpu401"); - - if (!ports) { - printk(KERN_ERR "PSS: MPU I/O port conflict\n"); - return 0; - } - set_io_base(devc, CONF_MIDI, hw_config->io_base); - if (!set_irq(devc, CONF_MIDI, hw_config->irq)) { - printk(KERN_ERR "PSS: MIDI IRQ allocation error.\n"); - goto fail; - } - if (!pss_synthLen) { - printk(KERN_ERR "PSS: Can't enable MPU. MIDI synth microcode not available.\n"); - goto fail; - } - if (!pss_download_boot(devc, pss_synth, pss_synthLen, CPF_FIRST | CPF_LAST)) { - printk(KERN_ERR "PSS: Unable to load MIDI synth microcode to DSP.\n"); - goto fail; - } - - /* - * Finally wait until the DSP algorithm has initialized itself and - * deactivates receive interrupt. - */ - - for (timeout = 900000; timeout > 0; timeout--) - { - if ((inb(hw_config->io_base + 1) & 0x80) == 0) /* Input data avail */ - inb(hw_config->io_base); /* Discard it */ - else - break; /* No more input */ - } - - if (!probe_mpu401(hw_config, ports)) - goto fail; - - attach_mpu401(hw_config, THIS_MODULE); /* Slot 1 */ - if (hw_config->slots[1] != -1) /* The MPU driver installed itself */ - midi_devs[hw_config->slots[1]]->coproc = &pss_coproc_operations; - return 1; -fail: - release_region(hw_config->io_base, 2); - return 0; -} - -static int pss_coproc_open(void *dev_info, int sub_device) -{ - switch (sub_device) - { - case COPR_MIDI: - if (pss_synthLen == 0) - { - printk(KERN_ERR "PSS: MIDI synth microcode not available.\n"); - return -EIO; - } - if (nonstandard_microcode) - if (!pss_download_boot(devc, pss_synth, pss_synthLen, CPF_FIRST | CPF_LAST)) - { - printk(KERN_ERR "PSS: Unable to load MIDI synth microcode to DSP.\n"); - return -EIO; - } - nonstandard_microcode = 0; - break; - - default: - break; - } - return 0; -} - -static void pss_coproc_close(void *dev_info, int sub_device) -{ - return; -} - -static void pss_coproc_reset(void *dev_info) -{ - if (pss_synthLen) - if (!pss_download_boot(devc, pss_synth, pss_synthLen, CPF_FIRST | CPF_LAST)) - { - printk(KERN_ERR "PSS: Unable to load MIDI synth microcode to DSP.\n"); - } - nonstandard_microcode = 0; -} - -static int download_boot_block(void *dev_info, copr_buffer * buf) -{ - if (buf->len <= 0 || buf->len > sizeof(buf->data)) - return -EINVAL; - - if (!pss_download_boot(devc, buf->data, buf->len, buf->flags)) - { - printk(KERN_ERR "PSS: Unable to load microcode block to DSP.\n"); - return -EIO; - } - nonstandard_microcode = 1; /* The MIDI microcode has been overwritten */ - return 0; -} - -static int pss_coproc_ioctl(void *dev_info, unsigned int cmd, void __user *arg, int local) -{ - copr_buffer *buf; - copr_msg *mbuf; - copr_debug_buf dbuf; - unsigned short tmp; - unsigned long flags; - unsigned short *data; - int i, err; - /* printk( "PSS coproc ioctl %x %x %d\n", cmd, arg, local); */ - - switch (cmd) - { - case SNDCTL_COPR_RESET: - pss_coproc_reset(dev_info); - return 0; - - case SNDCTL_COPR_LOAD: - buf = vmalloc(sizeof(copr_buffer)); - if (buf == NULL) - return -ENOSPC; - if (copy_from_user(buf, arg, sizeof(copr_buffer))) { - vfree(buf); - return -EFAULT; - } - err = download_boot_block(dev_info, buf); - vfree(buf); - return err; - - case SNDCTL_COPR_SENDMSG: - mbuf = vmalloc(sizeof(copr_msg)); - if (mbuf == NULL) - return -ENOSPC; - if (copy_from_user(mbuf, arg, sizeof(copr_msg))) { - vfree(mbuf); - return -EFAULT; - } - data = (unsigned short *)(mbuf->data); - spin_lock_irqsave(&lock, flags); - for (i = 0; i < mbuf->len; i++) { - if (!pss_put_dspword(devc, *data++)) { - spin_unlock_irqrestore(&lock,flags); - mbuf->len = i; /* feed back number of WORDs sent */ - err = copy_to_user(arg, mbuf, sizeof(copr_msg)); - vfree(mbuf); - return err ? -EFAULT : -EIO; - } - } - spin_unlock_irqrestore(&lock,flags); - vfree(mbuf); - return 0; - - case SNDCTL_COPR_RCVMSG: - err = 0; - mbuf = vmalloc(sizeof(copr_msg)); - if (mbuf == NULL) - return -ENOSPC; - data = (unsigned short *)mbuf->data; - spin_lock_irqsave(&lock, flags); - for (i = 0; i < sizeof(mbuf->data)/sizeof(unsigned short); i++) { - mbuf->len = i; /* feed back number of WORDs read */ - if (!pss_get_dspword(devc, data++)) { - if (i == 0) - err = -EIO; - break; - } - } - spin_unlock_irqrestore(&lock,flags); - if (copy_to_user(arg, mbuf, sizeof(copr_msg))) - err = -EFAULT; - vfree(mbuf); - return err; - - case SNDCTL_COPR_RDATA: - if (copy_from_user(&dbuf, arg, sizeof(dbuf))) - return -EFAULT; - spin_lock_irqsave(&lock, flags); - if (!pss_put_dspword(devc, 0x00d0)) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - if (!pss_put_dspword(devc, (unsigned short)(dbuf.parm1 & 0xffff))) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - if (!pss_get_dspword(devc, &tmp)) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - dbuf.parm1 = tmp; - spin_unlock_irqrestore(&lock,flags); - if (copy_to_user(arg, &dbuf, sizeof(dbuf))) - return -EFAULT; - return 0; - - case SNDCTL_COPR_WDATA: - if (copy_from_user(&dbuf, arg, sizeof(dbuf))) - return -EFAULT; - spin_lock_irqsave(&lock, flags); - if (!pss_put_dspword(devc, 0x00d1)) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - if (!pss_put_dspword(devc, (unsigned short) (dbuf.parm1 & 0xffff))) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - tmp = (unsigned int)dbuf.parm2 & 0xffff; - if (!pss_put_dspword(devc, tmp)) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - spin_unlock_irqrestore(&lock,flags); - return 0; - - case SNDCTL_COPR_WCODE: - if (copy_from_user(&dbuf, arg, sizeof(dbuf))) - return -EFAULT; - spin_lock_irqsave(&lock, flags); - if (!pss_put_dspword(devc, 0x00d3)) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - if (!pss_put_dspword(devc, (unsigned short)(dbuf.parm1 & 0xffff))) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - tmp = (unsigned int)dbuf.parm2 & 0x00ff; - if (!pss_put_dspword(devc, tmp)) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - tmp = ((unsigned int)dbuf.parm2 >> 8) & 0xffff; - if (!pss_put_dspword(devc, tmp)) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - spin_unlock_irqrestore(&lock,flags); - return 0; - - case SNDCTL_COPR_RCODE: - if (copy_from_user(&dbuf, arg, sizeof(dbuf))) - return -EFAULT; - spin_lock_irqsave(&lock, flags); - if (!pss_put_dspword(devc, 0x00d2)) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - if (!pss_put_dspword(devc, (unsigned short)(dbuf.parm1 & 0xffff))) { - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - if (!pss_get_dspword(devc, &tmp)) { /* Read MSB */ - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - dbuf.parm1 = tmp << 8; - if (!pss_get_dspword(devc, &tmp)) { /* Read LSB */ - spin_unlock_irqrestore(&lock,flags); - return -EIO; - } - dbuf.parm1 |= tmp & 0x00ff; - spin_unlock_irqrestore(&lock,flags); - if (copy_to_user(arg, &dbuf, sizeof(dbuf))) - return -EFAULT; - return 0; - - default: - return -EINVAL; - } - return -EINVAL; -} - -static coproc_operations pss_coproc_operations = -{ - "ADSP-2115", - THIS_MODULE, - pss_coproc_open, - pss_coproc_close, - pss_coproc_ioctl, - pss_coproc_reset, - &pss_data -}; - -static int __init probe_pss_mss(struct address_info *hw_config) -{ - volatile int timeout; - struct resource *ports; - int my_mix = -999; /* gcc shut up */ - - if (!pss_initialized) - return 0; - - if (!request_region(hw_config->io_base, 4, "WSS config")) { - printk(KERN_ERR "PSS: WSS I/O port conflicts.\n"); - return 0; - } - ports = request_region(hw_config->io_base + 4, 4, "ad1848"); - if (!ports) { - printk(KERN_ERR "PSS: WSS I/O port conflicts.\n"); - release_region(hw_config->io_base, 4); - return 0; - } - set_io_base(devc, CONF_WSS, hw_config->io_base); - if (!set_irq(devc, CONF_WSS, hw_config->irq)) { - printk("PSS: WSS IRQ allocation error.\n"); - goto fail; - } - if (!set_dma(devc, CONF_WSS, hw_config->dma)) { - printk(KERN_ERR "PSS: WSS DMA allocation error\n"); - goto fail; - } - /* - * For some reason the card returns 0xff in the WSS status register - * immediately after boot. Probably MIDI+SB emulation algorithm - * downloaded to the ADSP2115 spends some time initializing the card. - * Let's try to wait until it finishes this task. - */ - for (timeout = 0; timeout < 100000 && (inb(hw_config->io_base + WSS_INDEX) & - WSS_INITIALIZING); timeout++) - ; - - outb((0x0b), hw_config->io_base + WSS_INDEX); /* Required by some cards */ - - for (timeout = 0; (inb(hw_config->io_base + WSS_DATA) & WSS_AUTOCALIBRATION) && - (timeout < 100000); timeout++) - ; - - if (!probe_ms_sound(hw_config, ports)) - goto fail; - - devc->ad_mixer_dev = NO_WSS_MIXER; - if (pss_mixer) - { - if ((my_mix = sound_install_mixer (MIXER_DRIVER_VERSION, - "PSS-SPEAKERS and AD1848 (through MSS audio codec)", - &pss_mixer_operations, - sizeof (struct mixer_operations), - devc)) < 0) - { - printk(KERN_ERR "Could not install PSS mixer\n"); - goto fail; - } - } - pss_mixer_reset(devc); - attach_ms_sound(hw_config, ports, THIS_MODULE); /* Slot 0 */ - - if (hw_config->slots[0] != -1) - { - /* The MSS driver installed itself */ - audio_devs[hw_config->slots[0]]->coproc = &pss_coproc_operations; - if (pss_mixer && (num_mixers == (my_mix + 2))) - { - /* The MSS mixer installed */ - devc->ad_mixer_dev = audio_devs[hw_config->slots[0]]->mixer_dev; - } - } - return 1; -fail: - release_region(hw_config->io_base + 4, 4); - release_region(hw_config->io_base, 4); - return 0; -} - -static inline void __exit unload_pss(struct address_info *hw_config) -{ - release_region(hw_config->io_base, 0x10); - release_region(hw_config->io_base+0x10, 0x9); -} - -static inline void __exit unload_pss_mpu(struct address_info *hw_config) -{ - unload_mpu401(hw_config); -} - -static inline void __exit unload_pss_mss(struct address_info *hw_config) -{ - unload_ms_sound(hw_config); -} - - -static struct address_info cfg; -static struct address_info cfg2; -static struct address_info cfg_mpu; - -static int pss_io __initdata = -1; -static int mss_io __initdata = -1; -static int mss_irq __initdata = -1; -static int mss_dma __initdata = -1; -static int mpu_io __initdata = -1; -static int mpu_irq __initdata = -1; -static bool pss_no_sound = 0; /* Just configure non-sound components */ -static bool pss_keep_settings = 1; /* Keep hardware settings at module exit */ -static char *pss_firmware = "/etc/sound/pss_synth"; - -module_param_hw(pss_io, int, ioport, 0); -MODULE_PARM_DESC(pss_io, "Set i/o base of PSS card (probably 0x220 or 0x240)"); -module_param_hw(mss_io, int, ioport, 0); -MODULE_PARM_DESC(mss_io, "Set WSS (audio) i/o base (0x530, 0x604, 0xE80, 0xF40, or other. Address must end in 0 or 4 and must be from 0x100 to 0xFF4)"); -module_param_hw(mss_irq, int, irq, 0); -MODULE_PARM_DESC(mss_irq, "Set WSS (audio) IRQ (3, 5, 7, 9, 10, 11, 12)"); -module_param_hw(mss_dma, int, dma, 0); -MODULE_PARM_DESC(mss_dma, "Set WSS (audio) DMA (0, 1, 3)"); -module_param_hw(mpu_io, int, ioport, 0); -MODULE_PARM_DESC(mpu_io, "Set MIDI i/o base (0x330 or other. Address must be on 4 location boundaries and must be from 0x100 to 0xFFC)"); -module_param_hw(mpu_irq, int, irq, 0); -MODULE_PARM_DESC(mpu_irq, "Set MIDI IRQ (3, 5, 7, 9, 10, 11, 12)"); -module_param_hw(pss_cdrom_port, int, ioport, 0); -MODULE_PARM_DESC(pss_cdrom_port, "Set the PSS CDROM port i/o base (0x340 or other)"); -module_param(pss_enable_joystick, bool, 0); -MODULE_PARM_DESC(pss_enable_joystick, "Enables the PSS joystick port (1 to enable, 0 to disable)"); -module_param(pss_no_sound, bool, 0); -MODULE_PARM_DESC(pss_no_sound, "Configure sound compoents (0 - no, 1 - yes)"); -module_param(pss_keep_settings, bool, 0); -MODULE_PARM_DESC(pss_keep_settings, "Keep hardware setting at driver unloading (0 - no, 1 - yes)"); -module_param(pss_firmware, charp, 0); -MODULE_PARM_DESC(pss_firmware, "Location of the firmware file (default - /etc/sound/pss_synth)"); -module_param(pss_mixer, bool, 0); -MODULE_PARM_DESC(pss_mixer, "Enable (1) or disable (0) PSS mixer (controlling of output volume, bass, treble, synth volume). The mixer is not available on all PSS cards."); -MODULE_AUTHOR("Hannu Savolainen, Vladimir Michl"); -MODULE_DESCRIPTION("Module for PSS sound cards (based on AD1848, ADSP-2115 and ESC614). This module includes control of output amplifier and synth volume of the Beethoven ADSP-16 card (this may work with other PSS cards)."); -MODULE_LICENSE("GPL"); - - -static int fw_load = 0; -static int pssmpu = 0, pssmss = 0; - -/* - * Load a PSS sound card module - */ - -static int __init init_pss(void) -{ - - if(pss_no_sound) /* If configuring only nonsound components */ - { - cfg.io_base = pss_io; - if(!probe_pss(&cfg)) - return -ENODEV; - printk(KERN_INFO "ECHO-PSS Rev. %d\n", inw(REG(PSS_ID)) & 0x00ff); - printk(KERN_INFO "PSS: loading in no sound mode.\n"); - disable_all_emulations(); - configure_nonsound_components(); - release_region(pss_io, 0x10); - release_region(pss_io + 0x10, 0x9); - return 0; - } - - cfg.io_base = pss_io; - - cfg2.io_base = mss_io; - cfg2.irq = mss_irq; - cfg2.dma = mss_dma; - - cfg_mpu.io_base = mpu_io; - cfg_mpu.irq = mpu_irq; - - if (cfg.io_base == -1 || cfg2.io_base == -1 || cfg2.irq == -1 || cfg.dma == -1) { - printk(KERN_INFO "pss: mss_io, mss_dma, mss_irq and pss_io must be set.\n"); - return -EINVAL; - } - - if (!pss_synth) { - fw_load = 1; - pss_synthLen = mod_firmware_load(pss_firmware, (void *) &pss_synth); - } - if (!attach_pss(&cfg)) - return -ENODEV; - /* - * Attach stuff - */ - if (probe_pss_mpu(&cfg_mpu)) - pssmpu = 1; - - if (probe_pss_mss(&cfg2)) - pssmss = 1; - - return 0; -} - -static void __exit cleanup_pss(void) -{ - if(!pss_no_sound) - { - if (fw_load) - vfree(pss_synth); - if(pssmss) - unload_pss_mss(&cfg2); - if(pssmpu) - unload_pss_mpu(&cfg_mpu); - unload_pss(&cfg); - } else if (pss_cdrom_port != -1) - release_region(pss_cdrom_port, 2); - - if(!pss_keep_settings) /* Keep hardware settings if asked */ - { - disable_all_emulations(); - printk(KERN_INFO "Resetting PSS sound card configurations.\n"); - } -} - -module_init(init_pss); -module_exit(cleanup_pss); - -#ifndef MODULE -static int __init setup_pss(char *str) -{ - /* io, mss_io, mss_irq, mss_dma, mpu_io, mpu_irq */ - int ints[7]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - pss_io = ints[1]; - mss_io = ints[2]; - mss_irq = ints[3]; - mss_dma = ints[4]; - mpu_io = ints[5]; - mpu_irq = ints[6]; - - return 1; -} - -__setup("pss=", setup_pss); -#endif diff --git a/sound/oss/sb.h b/sound/oss/sb.h deleted file mode 100644 index 77e8891ce333..000000000000 --- a/sound/oss/sb.h +++ /dev/null @@ -1,185 +0,0 @@ -#define DSP_RESET (devc->base + 0x6) -#define DSP_READ (devc->base + 0xA) -#define DSP_WRITE (devc->base + 0xC) -#define DSP_COMMAND (devc->base + 0xC) -#define DSP_STATUS (devc->base + 0xC) -#define DSP_DATA_AVAIL (devc->base + 0xE) -#define DSP_DATA_AVL16 (devc->base + 0xF) -#define MIXER_ADDR (devc->base + 0x4) -#define MIXER_DATA (devc->base + 0x5) -#define OPL3_LEFT (devc->base + 0x0) -#define OPL3_RIGHT (devc->base + 0x2) -#define OPL3_BOTH (devc->base + 0x8) -/* DSP Commands */ - -#define DSP_CMD_SPKON 0xD1 -#define DSP_CMD_SPKOFF 0xD3 -#define DSP_CMD_DMAON 0xD0 -#define DSP_CMD_DMAOFF 0xD4 - -#define IMODE_NONE 0 -#define IMODE_OUTPUT PCM_ENABLE_OUTPUT -#define IMODE_INPUT PCM_ENABLE_INPUT -#define IMODE_INIT 3 -#define IMODE_MIDI 4 - -#define NORMAL_MIDI 0 -#define UART_MIDI 1 - - -/* - * Device models - */ -#define MDL_NONE 0 -#define MDL_SB1 1 /* SB1.0 or 1.5 */ -#define MDL_SB2 2 /* SB2.0 */ -#define MDL_SB201 3 /* SB2.01 */ -#define MDL_SBPRO 4 /* SB Pro */ -#define MDL_SB16 5 /* SB16/32/AWE */ -#define MDL_SBPNP 6 /* SB16/32/AWE PnP */ -#define MDL_JAZZ 10 /* Media Vision Jazz16 */ -#define MDL_SMW 11 /* Logitech SoundMan Wave (Jazz16) */ -#define MDL_ESS 12 /* ESS ES688 and ES1688 */ -#define MDL_AZTECH 13 /* Aztech Sound Galaxy family */ -#define MDL_ES1868MIDI 14 /* MIDI port of ESS1868 */ -#define MDL_AEDSP 15 /* Audio Excel DSP 16 */ -#define MDL_ESSPCI 16 /* ESS PCI card */ -#define MDL_YMPCI 17 /* Yamaha PCI sb in emulation */ - -#define SUBMDL_ALS007 42 /* ALS-007 differs from SB16 only in mixer */ - /* register assignment */ -#define SUBMDL_ALS100 43 /* ALS-100 allows sampling rates of up */ - /* to 48kHz */ - -/* - * Config flags - */ -#define SB_NO_MIDI 0x00000001 -#define SB_NO_MIXER 0x00000002 -#define SB_NO_AUDIO 0x00000004 -#define SB_NO_RECORDING 0x00000008 /* No audio recording */ -#define SB_MIDI_ONLY (SB_NO_AUDIO|SB_NO_MIXER) -#define SB_PCI_IRQ 0x00000010 /* PCI shared IRQ */ - -struct mixer_def { - unsigned int regno: 8; - unsigned int bitoffs:4; - unsigned int nbits:4; -}; - -typedef struct mixer_def mixer_tab[32][2]; -typedef struct mixer_def mixer_ent; - -struct sb_module_options -{ - int esstype; /* ESS chip type */ - int acer; /* Do acer notebook init? */ - int sm_games; /* Logitech soundman games? */ -}; - -typedef struct sb_devc { - int dev; - - /* Hardware parameters */ - int *osp; - int minor, major; - int type; - int model, submodel; - int caps; -# define SBCAP_STEREO 0x00000001 -# define SBCAP_16BITS 0x00000002 - - /* Hardware resources */ - int base; - int irq; - int dma8, dma16; - - int pcibase; /* For ESS Maestro etc */ - - /* State variables */ - int opened; - /* new audio fields for full duplex support */ - int fullduplex; - int duplex; - int speed, bits, channels; - volatile int irq_ok; - volatile int intr_active, irq_mode; - /* duplicate audio fields for full duplex support */ - volatile int intr_active_16, irq_mode_16; - - /* Mixer fields */ - int *levels; - mixer_tab *iomap; - size_t iomap_sz; /* number or records in the iomap table */ - int mixer_caps, recmask, outmask, supported_devices; - int supported_rec_devices, supported_out_devices; - int my_mixerdev; - int sbmixnum; - - /* Audio fields */ - unsigned long trg_buf; - int trigger_bits; - int trg_bytes; - int trg_intrflag; - int trg_restart; - /* duplicate audio fields for full duplex support */ - unsigned long trg_buf_16; - int trigger_bits_16; - int trg_bytes_16; - int trg_intrflag_16; - int trg_restart_16; - - unsigned char tconst; - - /* MIDI fields */ - int my_mididev; - int input_opened; - int midi_broken; - void (*midi_input_intr) (int dev, unsigned char data); - void *midi_irq_cookie; /* IRQ cookie for the midi */ - - spinlock_t lock; - - struct sb_module_options sbmo; /* Module options */ - - } sb_devc; - -/* - * PCI card types - */ - -#define SB_PCI_ESSMAESTRO 1 /* ESS Maestro Legacy */ -#define SB_PCI_YAMAHA 2 /* Yamaha Legacy */ - -/* - * Functions - */ - -int sb_dsp_command (sb_devc *devc, unsigned char val); -int sb_dsp_get_byte(sb_devc * devc); -int sb_dsp_reset (sb_devc *devc); -void sb_setmixer (sb_devc *devc, unsigned int port, unsigned int value); -unsigned int sb_getmixer (sb_devc *devc, unsigned int port); -int sb_dsp_detect (struct address_info *hw_config, int pci, int pciio, struct sb_module_options *sbmo); -int sb_dsp_init (struct address_info *hw_config, struct module *owner); -void sb_dsp_unload(struct address_info *hw_config, int sbmpu); -int sb_mixer_init(sb_devc *devc, struct module *owner); -void sb_mixer_unload(sb_devc *devc); -void sb_mixer_set_stereo (sb_devc *devc, int mode); -void smw_mixer_init(sb_devc *devc); -void sb_dsp_midi_init (sb_devc *devc, struct module *owner); -void sb_audio_init (sb_devc *devc, char *name, struct module *owner); -void sb_midi_interrupt (sb_devc *devc); -void sb_chgmixer (sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val); -int sb_common_mixer_set(sb_devc * devc, int dev, int left, int right); - -int sb_audio_open(int dev, int mode); -void sb_audio_close(int dev); - -/* From sb_common.c */ -void sb_dsp_disable_midi(int port); -int probe_sbmpu (struct address_info *hw_config, struct module *owner); -void unload_sbmpu (struct address_info *hw_config); - -void unload_sb16(struct address_info *hw_info); -void unload_sb16midi(struct address_info *hw_info); diff --git a/sound/oss/sb_audio.c b/sound/oss/sb_audio.c deleted file mode 100644 index dc91072f4d82..000000000000 --- a/sound/oss/sb_audio.c +++ /dev/null @@ -1,1097 +0,0 @@ -/* - * sound/oss/sb_audio.c - * - * Audio routines for Sound Blaster compatible cards. - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * Changes - * Alan Cox : Formatting and clean ups - * - * Status - * Mostly working. Weird uart bug causing irq storms - * - * Daniel J. Rodriksson: Changes to make sb16 work full duplex. - * Maybe other 16 bit cards in this code could behave - * the same. - * Chris Rankin: Use spinlocks instead of CLI/STI - */ - -#include - -#include "sound_config.h" - -#include "sb_mixer.h" -#include "sb.h" - -#include "sb_ess.h" - -int sb_audio_open(int dev, int mode) -{ - sb_devc *devc = audio_devs[dev]->devc; - unsigned long flags; - - if (devc == NULL) - { - printk(KERN_ERR "Sound Blaster: incomplete initialization.\n"); - return -ENXIO; - } - if (devc->caps & SB_NO_RECORDING && mode & OPEN_READ) - { - if (mode == OPEN_READ) - return -EPERM; - } - spin_lock_irqsave(&devc->lock, flags); - if (devc->opened) - { - spin_unlock_irqrestore(&devc->lock, flags); - return -EBUSY; - } - if (devc->dma16 != -1 && devc->dma16 != devc->dma8 && !devc->duplex) - { - if (sound_open_dma(devc->dma16, "Sound Blaster 16 bit")) - { - spin_unlock_irqrestore(&devc->lock, flags); - return -EBUSY; - } - } - devc->opened = mode; - spin_unlock_irqrestore(&devc->lock, flags); - - devc->irq_mode = IMODE_NONE; - devc->irq_mode_16 = IMODE_NONE; - devc->fullduplex = devc->duplex && - ((mode & OPEN_READ) && (mode & OPEN_WRITE)); - sb_dsp_reset(devc); - - /* At first glance this check isn't enough, some ESS chips might not - * have a RECLEV. However if they don't common_mixer_set will refuse - * cause devc->iomap has no register mapping for RECLEV - */ - if (devc->model == MDL_ESS) ess_mixer_reload (devc, SOUND_MIXER_RECLEV); - - /* The ALS007 seems to require that the DSP be removed from the output */ - /* in order for recording to be activated properly. This is done by */ - /* setting the appropriate bits of the output control register 4ch to */ - /* zero. This code assumes that the output control registers are not */ - /* used anywhere else and therefore the DSP bits are *always* ON for */ - /* output and OFF for sampling. */ - - if (devc->submodel == SUBMDL_ALS007) - { - if (mode & OPEN_READ) - sb_setmixer(devc,ALS007_OUTPUT_CTRL2, - sb_getmixer(devc,ALS007_OUTPUT_CTRL2) & 0xf9); - else - sb_setmixer(devc,ALS007_OUTPUT_CTRL2, - sb_getmixer(devc,ALS007_OUTPUT_CTRL2) | 0x06); - } - return 0; -} - -void sb_audio_close(int dev) -{ - sb_devc *devc = audio_devs[dev]->devc; - - /* fix things if mmap turned off fullduplex */ - if(devc->duplex - && !devc->fullduplex - && (devc->opened & OPEN_READ) && (devc->opened & OPEN_WRITE)) - swap(audio_devs[dev]->dmap_out, audio_devs[dev]->dmap_in); - - audio_devs[dev]->dmap_out->dma = devc->dma8; - audio_devs[dev]->dmap_in->dma = ( devc->duplex ) ? - devc->dma16 : devc->dma8; - - if (devc->dma16 != -1 && devc->dma16 != devc->dma8 && !devc->duplex) - sound_close_dma(devc->dma16); - - /* For ALS007, turn DSP output back on if closing the device for read */ - - if ((devc->submodel == SUBMDL_ALS007) && (devc->opened & OPEN_READ)) - { - sb_setmixer(devc,ALS007_OUTPUT_CTRL2, - sb_getmixer(devc,ALS007_OUTPUT_CTRL2) | 0x06); - } - devc->opened = 0; -} - -static void sb_set_output_parms(int dev, unsigned long buf, int nr_bytes, - int intrflag) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (!devc->fullduplex || devc->bits == AFMT_S16_LE) - { - devc->trg_buf = buf; - devc->trg_bytes = nr_bytes; - devc->trg_intrflag = intrflag; - devc->irq_mode = IMODE_OUTPUT; - } - else - { - devc->trg_buf_16 = buf; - devc->trg_bytes_16 = nr_bytes; - devc->trg_intrflag_16 = intrflag; - devc->irq_mode_16 = IMODE_OUTPUT; - } -} - -static void sb_set_input_parms(int dev, unsigned long buf, int count, int intrflag) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (!devc->fullduplex || devc->bits != AFMT_S16_LE) - { - devc->trg_buf = buf; - devc->trg_bytes = count; - devc->trg_intrflag = intrflag; - devc->irq_mode = IMODE_INPUT; - } - else - { - devc->trg_buf_16 = buf; - devc->trg_bytes_16 = count; - devc->trg_intrflag_16 = intrflag; - devc->irq_mode_16 = IMODE_INPUT; - } -} - -/* - * SB1.x compatible routines - */ - -static void sb1_audio_output_block(int dev, unsigned long buf, int nr_bytes, int intrflag) -{ - unsigned long flags; - int count = nr_bytes; - sb_devc *devc = audio_devs[dev]->devc; - - /* DMAbuf_start_dma (dev, buf, count, DMA_MODE_WRITE); */ - - if (audio_devs[dev]->dmap_out->dma > 3) - count >>= 1; - count--; - - devc->irq_mode = IMODE_OUTPUT; - - spin_lock_irqsave(&devc->lock, flags); - if (sb_dsp_command(devc, 0x14)) /* 8 bit DAC using DMA */ - { - sb_dsp_command(devc, (unsigned char) (count & 0xff)); - sb_dsp_command(devc, (unsigned char) ((count >> 8) & 0xff)); - } - else - printk(KERN_WARNING "Sound Blaster: unable to start DAC.\n"); - spin_unlock_irqrestore(&devc->lock, flags); - devc->intr_active = 1; -} - -static void sb1_audio_start_input(int dev, unsigned long buf, int nr_bytes, int intrflag) -{ - unsigned long flags; - int count = nr_bytes; - sb_devc *devc = audio_devs[dev]->devc; - - /* - * Start a DMA input to the buffer pointed by dmaqtail - */ - - /* DMAbuf_start_dma (dev, buf, count, DMA_MODE_READ); */ - - if (audio_devs[dev]->dmap_out->dma > 3) - count >>= 1; - count--; - - devc->irq_mode = IMODE_INPUT; - - spin_lock_irqsave(&devc->lock, flags); - if (sb_dsp_command(devc, 0x24)) /* 8 bit ADC using DMA */ - { - sb_dsp_command(devc, (unsigned char) (count & 0xff)); - sb_dsp_command(devc, (unsigned char) ((count >> 8) & 0xff)); - } - else - printk(KERN_ERR "Sound Blaster: unable to start ADC.\n"); - spin_unlock_irqrestore(&devc->lock, flags); - - devc->intr_active = 1; -} - -static void sb1_audio_trigger(int dev, int bits) -{ - sb_devc *devc = audio_devs[dev]->devc; - - bits &= devc->irq_mode; - - if (!bits) - sb_dsp_command(devc, 0xd0); /* Halt DMA */ - else - { - switch (devc->irq_mode) - { - case IMODE_INPUT: - sb1_audio_start_input(dev, devc->trg_buf, devc->trg_bytes, - devc->trg_intrflag); - break; - - case IMODE_OUTPUT: - sb1_audio_output_block(dev, devc->trg_buf, devc->trg_bytes, - devc->trg_intrflag); - break; - } - } - devc->trigger_bits = bits; -} - -static int sb1_audio_prepare_for_input(int dev, int bsize, int bcount) -{ - sb_devc *devc = audio_devs[dev]->devc; - unsigned long flags; - - spin_lock_irqsave(&devc->lock, flags); - if (sb_dsp_command(devc, 0x40)) - sb_dsp_command(devc, devc->tconst); - sb_dsp_command(devc, DSP_CMD_SPKOFF); - spin_unlock_irqrestore(&devc->lock, flags); - - devc->trigger_bits = 0; - return 0; -} - -static int sb1_audio_prepare_for_output(int dev, int bsize, int bcount) -{ - sb_devc *devc = audio_devs[dev]->devc; - unsigned long flags; - - spin_lock_irqsave(&devc->lock, flags); - if (sb_dsp_command(devc, 0x40)) - sb_dsp_command(devc, devc->tconst); - sb_dsp_command(devc, DSP_CMD_SPKON); - spin_unlock_irqrestore(&devc->lock, flags); - devc->trigger_bits = 0; - return 0; -} - -static int sb1_audio_set_speed(int dev, int speed) -{ - int max_speed = 23000; - sb_devc *devc = audio_devs[dev]->devc; - int tmp; - - if (devc->opened & OPEN_READ) - max_speed = 13000; - - if (speed > 0) - { - if (speed < 4000) - speed = 4000; - - if (speed > max_speed) - speed = max_speed; - - devc->tconst = (256 - ((1000000 + speed / 2) / speed)) & 0xff; - tmp = 256 - devc->tconst; - speed = (1000000 + tmp / 2) / tmp; - - devc->speed = speed; - } - return devc->speed; -} - -static short sb1_audio_set_channels(int dev, short channels) -{ - sb_devc *devc = audio_devs[dev]->devc; - return devc->channels = 1; -} - -static unsigned int sb1_audio_set_bits(int dev, unsigned int bits) -{ - sb_devc *devc = audio_devs[dev]->devc; - return devc->bits = 8; -} - -static void sb1_audio_halt_xfer(int dev) -{ - unsigned long flags; - sb_devc *devc = audio_devs[dev]->devc; - - spin_lock_irqsave(&devc->lock, flags); - sb_dsp_reset(devc); - spin_unlock_irqrestore(&devc->lock, flags); -} - -/* - * SB 2.0 and SB 2.01 compatible routines - */ - -static void sb20_audio_output_block(int dev, unsigned long buf, int nr_bytes, - int intrflag) -{ - unsigned long flags; - int count = nr_bytes; - sb_devc *devc = audio_devs[dev]->devc; - unsigned char cmd; - - /* DMAbuf_start_dma (dev, buf, count, DMA_MODE_WRITE); */ - - if (audio_devs[dev]->dmap_out->dma > 3) - count >>= 1; - count--; - - devc->irq_mode = IMODE_OUTPUT; - - spin_lock_irqsave(&devc->lock, flags); - if (sb_dsp_command(devc, 0x48)) /* DSP Block size */ - { - sb_dsp_command(devc, (unsigned char) (count & 0xff)); - sb_dsp_command(devc, (unsigned char) ((count >> 8) & 0xff)); - - if (devc->speed * devc->channels <= 23000) - cmd = 0x1c; /* 8 bit PCM output */ - else - cmd = 0x90; /* 8 bit high speed PCM output (SB2.01/Pro) */ - - if (!sb_dsp_command(devc, cmd)) - printk(KERN_ERR "Sound Blaster: unable to start DAC.\n"); - } - else - printk(KERN_ERR "Sound Blaster: unable to start DAC.\n"); - spin_unlock_irqrestore(&devc->lock, flags); - devc->intr_active = 1; -} - -static void sb20_audio_start_input(int dev, unsigned long buf, int nr_bytes, int intrflag) -{ - unsigned long flags; - int count = nr_bytes; - sb_devc *devc = audio_devs[dev]->devc; - unsigned char cmd; - - /* - * Start a DMA input to the buffer pointed by dmaqtail - */ - - /* DMAbuf_start_dma (dev, buf, count, DMA_MODE_READ); */ - - if (audio_devs[dev]->dmap_out->dma > 3) - count >>= 1; - count--; - - devc->irq_mode = IMODE_INPUT; - - spin_lock_irqsave(&devc->lock, flags); - if (sb_dsp_command(devc, 0x48)) /* DSP Block size */ - { - sb_dsp_command(devc, (unsigned char) (count & 0xff)); - sb_dsp_command(devc, (unsigned char) ((count >> 8) & 0xff)); - - if (devc->speed * devc->channels <= (devc->major == 3 ? 23000 : 13000)) - cmd = 0x2c; /* 8 bit PCM input */ - else - cmd = 0x98; /* 8 bit high speed PCM input (SB2.01/Pro) */ - - if (!sb_dsp_command(devc, cmd)) - printk(KERN_ERR "Sound Blaster: unable to start ADC.\n"); - } - else - printk(KERN_ERR "Sound Blaster: unable to start ADC.\n"); - spin_unlock_irqrestore(&devc->lock, flags); - devc->intr_active = 1; -} - -static void sb20_audio_trigger(int dev, int bits) -{ - sb_devc *devc = audio_devs[dev]->devc; - bits &= devc->irq_mode; - - if (!bits) - sb_dsp_command(devc, 0xd0); /* Halt DMA */ - else - { - switch (devc->irq_mode) - { - case IMODE_INPUT: - sb20_audio_start_input(dev, devc->trg_buf, devc->trg_bytes, - devc->trg_intrflag); - break; - - case IMODE_OUTPUT: - sb20_audio_output_block(dev, devc->trg_buf, devc->trg_bytes, - devc->trg_intrflag); - break; - } - } - devc->trigger_bits = bits; -} - -/* - * SB2.01 specific speed setup - */ - -static int sb201_audio_set_speed(int dev, int speed) -{ - sb_devc *devc = audio_devs[dev]->devc; - int tmp; - int s; - - if (speed > 0) - { - if (speed < 4000) - speed = 4000; - if (speed > 44100) - speed = 44100; - if (devc->opened & OPEN_READ && speed > 15000) - speed = 15000; - s = speed * devc->channels; - devc->tconst = (256 - ((1000000 + s / 2) / s)) & 0xff; - tmp = 256 - devc->tconst; - speed = ((1000000 + tmp / 2) / tmp) / devc->channels; - - devc->speed = speed; - } - return devc->speed; -} - -/* - * SB Pro specific routines - */ - -static int sbpro_audio_prepare_for_input(int dev, int bsize, int bcount) -{ /* For SB Pro and Jazz16 */ - sb_devc *devc = audio_devs[dev]->devc; - unsigned long flags; - unsigned char bits = 0; - - if (devc->dma16 >= 0 && devc->dma16 != devc->dma8) - audio_devs[dev]->dmap_out->dma = audio_devs[dev]->dmap_in->dma = - devc->bits == 16 ? devc->dma16 : devc->dma8; - - if (devc->model == MDL_JAZZ || devc->model == MDL_SMW) - if (devc->bits == AFMT_S16_LE) - bits = 0x04; /* 16 bit mode */ - - spin_lock_irqsave(&devc->lock, flags); - if (sb_dsp_command(devc, 0x40)) - sb_dsp_command(devc, devc->tconst); - sb_dsp_command(devc, DSP_CMD_SPKOFF); - if (devc->channels == 1) - sb_dsp_command(devc, 0xa0 | bits); /* Mono input */ - else - sb_dsp_command(devc, 0xa8 | bits); /* Stereo input */ - spin_unlock_irqrestore(&devc->lock, flags); - - devc->trigger_bits = 0; - return 0; -} - -static int sbpro_audio_prepare_for_output(int dev, int bsize, int bcount) -{ /* For SB Pro and Jazz16 */ - sb_devc *devc = audio_devs[dev]->devc; - unsigned long flags; - unsigned char tmp; - unsigned char bits = 0; - - if (devc->dma16 >= 0 && devc->dma16 != devc->dma8) - audio_devs[dev]->dmap_out->dma = audio_devs[dev]->dmap_in->dma = devc->bits == 16 ? devc->dma16 : devc->dma8; - if (devc->model == MDL_SBPRO) - sb_mixer_set_stereo(devc, devc->channels == 2); - - spin_lock_irqsave(&devc->lock, flags); - if (sb_dsp_command(devc, 0x40)) - sb_dsp_command(devc, devc->tconst); - sb_dsp_command(devc, DSP_CMD_SPKON); - - if (devc->model == MDL_JAZZ || devc->model == MDL_SMW) - { - if (devc->bits == AFMT_S16_LE) - bits = 0x04; /* 16 bit mode */ - - if (devc->channels == 1) - sb_dsp_command(devc, 0xa0 | bits); /* Mono output */ - else - sb_dsp_command(devc, 0xa8 | bits); /* Stereo output */ - spin_unlock_irqrestore(&devc->lock, flags); - } - else - { - spin_unlock_irqrestore(&devc->lock, flags); - tmp = sb_getmixer(devc, 0x0e); - if (devc->channels == 1) - tmp &= ~0x02; - else - tmp |= 0x02; - sb_setmixer(devc, 0x0e, tmp); - } - devc->trigger_bits = 0; - return 0; -} - -static int sbpro_audio_set_speed(int dev, int speed) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (speed > 0) - { - if (speed < 4000) - speed = 4000; - if (speed > 44100) - speed = 44100; - if (devc->channels > 1 && speed > 22050) - speed = 22050; - sb201_audio_set_speed(dev, speed); - } - return devc->speed; -} - -static short sbpro_audio_set_channels(int dev, short channels) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (channels == 1 || channels == 2) - { - if (channels != devc->channels) - { - devc->channels = channels; - if (devc->model == MDL_SBPRO && devc->channels == 2) - sbpro_audio_set_speed(dev, devc->speed); - } - } - return devc->channels; -} - -static int jazz16_audio_set_speed(int dev, int speed) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (speed > 0) - { - int tmp; - int s; - - if (speed < 5000) - speed = 5000; - if (speed > 44100) - speed = 44100; - - s = speed * devc->channels; - - devc->tconst = (256 - ((1000000 + s / 2) / s)) & 0xff; - - tmp = 256 - devc->tconst; - speed = ((1000000 + tmp / 2) / tmp) / devc->channels; - - devc->speed = speed; - } - return devc->speed; -} - -/* - * SB16 specific routines - */ - -static int sb16_audio_set_speed(int dev, int speed) -{ - sb_devc *devc = audio_devs[dev]->devc; - int max_speed = devc->submodel == SUBMDL_ALS100 ? 48000 : 44100; - - if (speed > 0) - { - if (speed < 5000) - speed = 5000; - - if (speed > max_speed) - speed = max_speed; - - devc->speed = speed; - } - return devc->speed; -} - -static unsigned int sb16_audio_set_bits(int dev, unsigned int bits) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (bits != 0) - { - if (bits == AFMT_U8 || bits == AFMT_S16_LE) - devc->bits = bits; - else - devc->bits = AFMT_U8; - } - - return devc->bits; -} - -static int sb16_audio_prepare_for_input(int dev, int bsize, int bcount) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (!devc->fullduplex) - { - audio_devs[dev]->dmap_out->dma = - audio_devs[dev]->dmap_in->dma = - devc->bits == AFMT_S16_LE ? - devc->dma16 : devc->dma8; - } - else if (devc->bits == AFMT_S16_LE) - { - audio_devs[dev]->dmap_out->dma = devc->dma8; - audio_devs[dev]->dmap_in->dma = devc->dma16; - } - else - { - audio_devs[dev]->dmap_out->dma = devc->dma16; - audio_devs[dev]->dmap_in->dma = devc->dma8; - } - - devc->trigger_bits = 0; - return 0; -} - -static int sb16_audio_prepare_for_output(int dev, int bsize, int bcount) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (!devc->fullduplex) - { - audio_devs[dev]->dmap_out->dma = - audio_devs[dev]->dmap_in->dma = - devc->bits == AFMT_S16_LE ? - devc->dma16 : devc->dma8; - } - else if (devc->bits == AFMT_S16_LE) - { - audio_devs[dev]->dmap_out->dma = devc->dma8; - audio_devs[dev]->dmap_in->dma = devc->dma16; - } - else - { - audio_devs[dev]->dmap_out->dma = devc->dma16; - audio_devs[dev]->dmap_in->dma = devc->dma8; - } - - devc->trigger_bits = 0; - return 0; -} - -static void sb16_audio_output_block(int dev, unsigned long buf, int count, - int intrflag) -{ - unsigned long flags, cnt; - sb_devc *devc = audio_devs[dev]->devc; - unsigned long bits; - - if (!devc->fullduplex || devc->bits == AFMT_S16_LE) - { - devc->irq_mode = IMODE_OUTPUT; - devc->intr_active = 1; - } - else - { - devc->irq_mode_16 = IMODE_OUTPUT; - devc->intr_active_16 = 1; - } - - /* save value */ - spin_lock_irqsave(&devc->lock, flags); - bits = devc->bits; - if (devc->fullduplex) - devc->bits = (devc->bits == AFMT_S16_LE) ? - AFMT_U8 : AFMT_S16_LE; - spin_unlock_irqrestore(&devc->lock, flags); - - cnt = count; - if (devc->bits == AFMT_S16_LE) - cnt >>= 1; - cnt--; - - spin_lock_irqsave(&devc->lock, flags); - - /* DMAbuf_start_dma (dev, buf, count, DMA_MODE_WRITE); */ - - sb_dsp_command(devc, 0x41); - sb_dsp_command(devc, (unsigned char) ((devc->speed >> 8) & 0xff)); - sb_dsp_command(devc, (unsigned char) (devc->speed & 0xff)); - - sb_dsp_command(devc, (devc->bits == AFMT_S16_LE ? 0xb6 : 0xc6)); - sb_dsp_command(devc, ((devc->channels == 2 ? 0x20 : 0) + - (devc->bits == AFMT_S16_LE ? 0x10 : 0))); - sb_dsp_command(devc, (unsigned char) (cnt & 0xff)); - sb_dsp_command(devc, (unsigned char) (cnt >> 8)); - - /* restore real value after all programming */ - devc->bits = bits; - spin_unlock_irqrestore(&devc->lock, flags); -} - - -/* - * This fails on the Cyrix MediaGX. If you don't have the DMA enabled - * before the first sample arrives it locks up. However even if you - * do enable the DMA in time you just get DMA timeouts and missing - * interrupts and stuff, so for now I've not bothered fixing this either. - */ - -static void sb16_audio_start_input(int dev, unsigned long buf, int count, int intrflag) -{ - unsigned long flags, cnt; - sb_devc *devc = audio_devs[dev]->devc; - - if (!devc->fullduplex || devc->bits != AFMT_S16_LE) - { - devc->irq_mode = IMODE_INPUT; - devc->intr_active = 1; - } - else - { - devc->irq_mode_16 = IMODE_INPUT; - devc->intr_active_16 = 1; - } - - cnt = count; - if (devc->bits == AFMT_S16_LE) - cnt >>= 1; - cnt--; - - spin_lock_irqsave(&devc->lock, flags); - - /* DMAbuf_start_dma (dev, buf, count, DMA_MODE_READ); */ - - sb_dsp_command(devc, 0x42); - sb_dsp_command(devc, (unsigned char) ((devc->speed >> 8) & 0xff)); - sb_dsp_command(devc, (unsigned char) (devc->speed & 0xff)); - - sb_dsp_command(devc, (devc->bits == AFMT_S16_LE ? 0xbe : 0xce)); - sb_dsp_command(devc, ((devc->channels == 2 ? 0x20 : 0) + - (devc->bits == AFMT_S16_LE ? 0x10 : 0))); - sb_dsp_command(devc, (unsigned char) (cnt & 0xff)); - sb_dsp_command(devc, (unsigned char) (cnt >> 8)); - - spin_unlock_irqrestore(&devc->lock, flags); -} - -static void sb16_audio_trigger(int dev, int bits) -{ - sb_devc *devc = audio_devs[dev]->devc; - - int bits_16 = bits & devc->irq_mode_16; - bits &= devc->irq_mode; - - if (!bits && !bits_16) - sb_dsp_command(devc, 0xd0); /* Halt DMA */ - else - { - if (bits) - { - switch (devc->irq_mode) - { - case IMODE_INPUT: - sb16_audio_start_input(dev, - devc->trg_buf, - devc->trg_bytes, - devc->trg_intrflag); - break; - - case IMODE_OUTPUT: - sb16_audio_output_block(dev, - devc->trg_buf, - devc->trg_bytes, - devc->trg_intrflag); - break; - } - } - if (bits_16) - { - switch (devc->irq_mode_16) - { - case IMODE_INPUT: - sb16_audio_start_input(dev, - devc->trg_buf_16, - devc->trg_bytes_16, - devc->trg_intrflag_16); - break; - - case IMODE_OUTPUT: - sb16_audio_output_block(dev, - devc->trg_buf_16, - devc->trg_bytes_16, - devc->trg_intrflag_16); - break; - } - } - } - - devc->trigger_bits = bits | bits_16; -} - -static unsigned char lbuf8[2048]; -static signed short *lbuf16 = (signed short *)lbuf8; -#define LBUFCOPYSIZE 1024 -static void -sb16_copy_from_user(int dev, - char *localbuf, int localoffs, - const char __user *userbuf, int useroffs, - int max_in, int max_out, - int *used, int *returned, - int len) -{ - sb_devc *devc = audio_devs[dev]->devc; - int i, c, p, locallen; - unsigned char *buf8; - signed short *buf16; - - /* if not duplex no conversion */ - if (!devc->fullduplex) - { - if (copy_from_user(localbuf + localoffs, - userbuf + useroffs, len)) - return; - *used = len; - *returned = len; - } - else if (devc->bits == AFMT_S16_LE) - { - /* 16 -> 8 */ - /* max_in >> 1, max number of samples in ( 16 bits ) */ - /* max_out, max number of samples out ( 8 bits ) */ - /* len, number of samples that will be taken ( 16 bits )*/ - /* c, count of samples remaining in buffer ( 16 bits )*/ - /* p, count of samples already processed ( 16 bits )*/ - len = ( (max_in >> 1) > max_out) ? max_out : (max_in >> 1); - c = len; - p = 0; - buf8 = (unsigned char *)(localbuf + localoffs); - while (c) - { - locallen = (c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c); - /* << 1 in order to get 16 bit samples */ - if (copy_from_user(lbuf16, - userbuf + useroffs + (p << 1), - locallen << 1)) - return; - for (i = 0; i < locallen; i++) - { - buf8[p+i] = ~((lbuf16[i] >> 8) & 0xff) ^ 0x80; - } - c -= locallen; p += locallen; - } - /* used = ( samples * 16 bits size ) */ - *used = max_in > ( max_out << 1) ? (max_out << 1) : max_in; - /* returned = ( samples * 8 bits size ) */ - *returned = len; - } - else - { - /* 8 -> 16 */ - /* max_in, max number of samples in ( 8 bits ) */ - /* max_out >> 1, max number of samples out ( 16 bits ) */ - /* len, number of samples that will be taken ( 8 bits )*/ - /* c, count of samples remaining in buffer ( 8 bits )*/ - /* p, count of samples already processed ( 8 bits )*/ - len = max_in > (max_out >> 1) ? (max_out >> 1) : max_in; - c = len; - p = 0; - buf16 = (signed short *)(localbuf + localoffs); - while (c) - { - locallen = (c >= LBUFCOPYSIZE ? LBUFCOPYSIZE : c); - if (copy_from_user(lbuf8, - userbuf+useroffs + p, - locallen)) - return; - for (i = 0; i < locallen; i++) - { - buf16[p+i] = (~lbuf8[i] ^ 0x80) << 8; - } - c -= locallen; p += locallen; - } - /* used = ( samples * 8 bits size ) */ - *used = len; - /* returned = ( samples * 16 bits size ) */ - *returned = len << 1; - } -} - -static void -sb16_audio_mmap(int dev) -{ - sb_devc *devc = audio_devs[dev]->devc; - devc->fullduplex = 0; -} - -static struct audio_driver sb1_audio_driver = /* SB1.x */ -{ - .owner = THIS_MODULE, - .open = sb_audio_open, - .close = sb_audio_close, - .output_block = sb_set_output_parms, - .start_input = sb_set_input_parms, - .prepare_for_input = sb1_audio_prepare_for_input, - .prepare_for_output = sb1_audio_prepare_for_output, - .halt_io = sb1_audio_halt_xfer, - .trigger = sb1_audio_trigger, - .set_speed = sb1_audio_set_speed, - .set_bits = sb1_audio_set_bits, - .set_channels = sb1_audio_set_channels -}; - -static struct audio_driver sb20_audio_driver = /* SB2.0 */ -{ - .owner = THIS_MODULE, - .open = sb_audio_open, - .close = sb_audio_close, - .output_block = sb_set_output_parms, - .start_input = sb_set_input_parms, - .prepare_for_input = sb1_audio_prepare_for_input, - .prepare_for_output = sb1_audio_prepare_for_output, - .halt_io = sb1_audio_halt_xfer, - .trigger = sb20_audio_trigger, - .set_speed = sb1_audio_set_speed, - .set_bits = sb1_audio_set_bits, - .set_channels = sb1_audio_set_channels -}; - -static struct audio_driver sb201_audio_driver = /* SB2.01 */ -{ - .owner = THIS_MODULE, - .open = sb_audio_open, - .close = sb_audio_close, - .output_block = sb_set_output_parms, - .start_input = sb_set_input_parms, - .prepare_for_input = sb1_audio_prepare_for_input, - .prepare_for_output = sb1_audio_prepare_for_output, - .halt_io = sb1_audio_halt_xfer, - .trigger = sb20_audio_trigger, - .set_speed = sb201_audio_set_speed, - .set_bits = sb1_audio_set_bits, - .set_channels = sb1_audio_set_channels -}; - -static struct audio_driver sbpro_audio_driver = /* SB Pro */ -{ - .owner = THIS_MODULE, - .open = sb_audio_open, - .close = sb_audio_close, - .output_block = sb_set_output_parms, - .start_input = sb_set_input_parms, - .prepare_for_input = sbpro_audio_prepare_for_input, - .prepare_for_output = sbpro_audio_prepare_for_output, - .halt_io = sb1_audio_halt_xfer, - .trigger = sb20_audio_trigger, - .set_speed = sbpro_audio_set_speed, - .set_bits = sb1_audio_set_bits, - .set_channels = sbpro_audio_set_channels -}; - -static struct audio_driver jazz16_audio_driver = /* Jazz16 and SM Wave */ -{ - .owner = THIS_MODULE, - .open = sb_audio_open, - .close = sb_audio_close, - .output_block = sb_set_output_parms, - .start_input = sb_set_input_parms, - .prepare_for_input = sbpro_audio_prepare_for_input, - .prepare_for_output = sbpro_audio_prepare_for_output, - .halt_io = sb1_audio_halt_xfer, - .trigger = sb20_audio_trigger, - .set_speed = jazz16_audio_set_speed, - .set_bits = sb16_audio_set_bits, - .set_channels = sbpro_audio_set_channels -}; - -static struct audio_driver sb16_audio_driver = /* SB16 */ -{ - .owner = THIS_MODULE, - .open = sb_audio_open, - .close = sb_audio_close, - .output_block = sb_set_output_parms, - .start_input = sb_set_input_parms, - .prepare_for_input = sb16_audio_prepare_for_input, - .prepare_for_output = sb16_audio_prepare_for_output, - .halt_io = sb1_audio_halt_xfer, - .copy_user = sb16_copy_from_user, - .trigger = sb16_audio_trigger, - .set_speed = sb16_audio_set_speed, - .set_bits = sb16_audio_set_bits, - .set_channels = sbpro_audio_set_channels, - .mmap = sb16_audio_mmap -}; - -void sb_audio_init(sb_devc * devc, char *name, struct module *owner) -{ - int audio_flags = 0; - int format_mask = AFMT_U8; - - struct audio_driver *driver = &sb1_audio_driver; - - switch (devc->model) - { - case MDL_SB1: /* SB1.0 or SB 1.5 */ - DDB(printk("Will use standard SB1.x driver\n")); - audio_flags = DMA_HARDSTOP; - break; - - case MDL_SB2: - DDB(printk("Will use SB2.0 driver\n")); - audio_flags = DMA_AUTOMODE; - driver = &sb20_audio_driver; - break; - - case MDL_SB201: - DDB(printk("Will use SB2.01 (high speed) driver\n")); - audio_flags = DMA_AUTOMODE; - driver = &sb201_audio_driver; - break; - - case MDL_JAZZ: - case MDL_SMW: - DDB(printk("Will use Jazz16 driver\n")); - audio_flags = DMA_AUTOMODE; - format_mask |= AFMT_S16_LE; - driver = &jazz16_audio_driver; - break; - - case MDL_ESS: - DDB(printk("Will use ESS ES688/1688 driver\n")); - driver = ess_audio_init (devc, &audio_flags, &format_mask); - break; - - case MDL_SB16: - DDB(printk("Will use SB16 driver\n")); - audio_flags = DMA_AUTOMODE; - format_mask |= AFMT_S16_LE; - if (devc->dma8 != devc->dma16 && devc->dma16 != -1) - { - audio_flags |= DMA_DUPLEX; - devc->duplex = 1; - } - driver = &sb16_audio_driver; - break; - - default: - DDB(printk("Will use SB Pro driver\n")); - audio_flags = DMA_AUTOMODE; - driver = &sbpro_audio_driver; - } - - if (owner) - driver->owner = owner; - - if ((devc->dev = sound_install_audiodrv(AUDIO_DRIVER_VERSION, - name,driver, sizeof(struct audio_driver), - audio_flags, format_mask, devc, - devc->dma8, - devc->duplex ? devc->dma16 : devc->dma8)) < 0) - { - printk(KERN_ERR "Sound Blaster: unable to install audio.\n"); - return; - } - audio_devs[devc->dev]->mixer_dev = devc->my_mixerdev; - audio_devs[devc->dev]->min_fragment = 5; -} diff --git a/sound/oss/sb_card.c b/sound/oss/sb_card.c deleted file mode 100644 index 2a92cfe6cfe9..000000000000 --- a/sound/oss/sb_card.c +++ /dev/null @@ -1,354 +0,0 @@ -/* - * sound/oss/sb_card.c - * - * Detection routine for the ISA Sound Blaster and compatible sound - * cards. - * - * This file is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this - * software for more info. - * - * This is a complete rewrite of the detection routines. This was - * prompted by the PnP API change during v2.5 and the ugly state the - * code was in. - * - * Copyright (C) by Paul Laufer 2002. Based on code originally by - * Hannu Savolainen which was modified by many others over the - * years. Authors specifically mentioned in the previous version were: - * Daniel Stone, Alessandro Zummo, Jeff Garzik, Arnaldo Carvalho de - * Melo, Daniel Church, and myself. - * - * 02-05-2003 Original Release, Paul Laufer - * 02-07-2003 Bug made it into first release. Take two. - */ - -#include -#include -#include -#include -#include "sound_config.h" -#include "sb_mixer.h" -#include "sb.h" -#ifdef CONFIG_PNP -#include -#endif /* CONFIG_PNP */ -#include "sb_card.h" - -MODULE_DESCRIPTION("OSS Soundblaster ISA PnP and legacy sound driver"); -MODULE_LICENSE("GPL"); - -extern void *smw_free; - -static int __initdata mpu_io = 0; -static int __initdata io = -1; -static int __initdata irq = -1; -static int __initdata dma = -1; -static int __initdata dma16 = -1; -static int __initdata type = 0; /* Can set this to a specific card type */ -static int __initdata esstype = 0; /* ESS chip type */ -static int __initdata acer = 0; /* Do acer notebook init? */ -static int __initdata sm_games = 0; /* Logitech soundman games? */ - -static struct sb_card_config *legacy = NULL; - -#ifdef CONFIG_PNP -static int pnp_registered; -static int __initdata pnp = 1; -/* -static int __initdata uart401 = 0; -*/ -#else -static int __initdata pnp = 0; -#endif - -module_param_hw(io, int, ioport, 000); -MODULE_PARM_DESC(io, "Soundblaster i/o base address (0x220,0x240,0x260,0x280)"); -module_param_hw(irq, int, irq, 000); -MODULE_PARM_DESC(irq, "IRQ (5,7,9,10)"); -module_param_hw(dma, int, dma, 000); -MODULE_PARM_DESC(dma, "8-bit DMA channel (0,1,3)"); -module_param_hw(dma16, int, dma, 000); -MODULE_PARM_DESC(dma16, "16-bit DMA channel (5,6,7)"); -module_param_hw(mpu_io, int, ioport, 000); -MODULE_PARM_DESC(mpu_io, "MPU base address"); -module_param(type, int, 000); -MODULE_PARM_DESC(type, "You can set this to specific card type (doesn't " \ - "work with pnp)"); -module_param(sm_games, int, 000); -MODULE_PARM_DESC(sm_games, "Enable support for Logitech soundman games " \ - "(doesn't work with pnp)"); -module_param(esstype, int, 000); -MODULE_PARM_DESC(esstype, "ESS chip type (doesn't work with pnp)"); -module_param(acer, int, 000); -MODULE_PARM_DESC(acer, "Set this to detect cards in some ACER notebooks "\ - "(doesn't work with pnp)"); - -#ifdef CONFIG_PNP -module_param(pnp, int, 000); -MODULE_PARM_DESC(pnp, "Went set to 0 will disable detection using PnP. "\ - "Default is 1.\n"); -/* Not done yet.... */ -/* -module_param(uart401, int, 000); -MODULE_PARM_DESC(uart401, "When set to 1, will attempt to detect and enable"\ - "the mpu on some clones"); -*/ -#endif /* CONFIG_PNP */ - -/* OSS subsystem card registration shared by PnP and legacy routines */ -static int sb_register_oss(struct sb_card_config *scc, struct sb_module_options *sbmo) -{ - if (!request_region(scc->conf.io_base, 16, "soundblaster")) { - printk(KERN_ERR "sb: ports busy.\n"); - kfree(scc); - return -EBUSY; - } - - if (!sb_dsp_detect(&scc->conf, 0, 0, sbmo)) { - release_region(scc->conf.io_base, 16); - printk(KERN_ERR "sb: Failed DSP Detect.\n"); - kfree(scc); - return -ENODEV; - } - if(!sb_dsp_init(&scc->conf, THIS_MODULE)) { - printk(KERN_ERR "sb: Failed DSP init.\n"); - kfree(scc); - return -ENODEV; - } - if(scc->mpucnf.io_base > 0) { - scc->mpu = 1; - printk(KERN_INFO "sb: Turning on MPU\n"); - if(!probe_sbmpu(&scc->mpucnf, THIS_MODULE)) - scc->mpu = 0; - } - - return 1; -} - -static void sb_unload(struct sb_card_config *scc) -{ - sb_dsp_unload(&scc->conf, 0); - if(scc->mpu) - unload_sbmpu(&scc->mpucnf); - kfree(scc); -} - -/* Register legacy card with OSS subsystem */ -static int __init sb_init_legacy(void) -{ - struct sb_module_options sbmo = {0}; - - if((legacy = kzalloc(sizeof(struct sb_card_config), GFP_KERNEL)) == NULL) { - printk(KERN_ERR "sb: Error: Could not allocate memory\n"); - return -ENOMEM; - } - - legacy->conf.io_base = io; - legacy->conf.irq = irq; - legacy->conf.dma = dma; - legacy->conf.dma2 = dma16; - legacy->conf.card_subtype = type; - - legacy->mpucnf.io_base = mpu_io; - legacy->mpucnf.irq = -1; - legacy->mpucnf.dma = -1; - legacy->mpucnf.dma2 = -1; - - sbmo.esstype = esstype; - sbmo.sm_games = sm_games; - sbmo.acer = acer; - - return sb_register_oss(legacy, &sbmo); -} - -#ifdef CONFIG_PNP - -/* Populate the OSS subsystem structures with information from PnP */ -static void sb_dev2cfg(struct pnp_dev *dev, struct sb_card_config *scc) -{ - scc->conf.io_base = -1; - scc->conf.irq = -1; - scc->conf.dma = -1; - scc->conf.dma2 = -1; - scc->mpucnf.io_base = -1; - scc->mpucnf.irq = -1; - scc->mpucnf.dma = -1; - scc->mpucnf.dma2 = -1; - - /* All clones layout their PnP tables differently and some use - different logical devices for the MPU */ - if(!strncmp("CTL",scc->card_id,3)) { - scc->conf.io_base = pnp_port_start(dev,0); - scc->conf.irq = pnp_irq(dev,0); - scc->conf.dma = pnp_dma(dev,0); - scc->conf.dma2 = pnp_dma(dev,1); - scc->mpucnf.io_base = pnp_port_start(dev,1); - return; - } - if(!strncmp("tBA",scc->card_id,3)) { - scc->conf.io_base = pnp_port_start(dev,0); - scc->conf.irq = pnp_irq(dev,0); - scc->conf.dma = pnp_dma(dev,0); - scc->conf.dma2 = pnp_dma(dev,1); - return; - } - if(!strncmp("ESS",scc->card_id,3)) { - scc->conf.io_base = pnp_port_start(dev,0); - scc->conf.irq = pnp_irq(dev,0); - scc->conf.dma = pnp_dma(dev,0); - scc->conf.dma2 = pnp_dma(dev,1); - scc->mpucnf.io_base = pnp_port_start(dev,2); - return; - } - if(!strncmp("CMI",scc->card_id,3)) { - scc->conf.io_base = pnp_port_start(dev,0); - scc->conf.irq = pnp_irq(dev,0); - scc->conf.dma = pnp_dma(dev,0); - scc->conf.dma2 = pnp_dma(dev,1); - return; - } - if(!strncmp("RWB",scc->card_id,3)) { - scc->conf.io_base = pnp_port_start(dev,0); - scc->conf.irq = pnp_irq(dev,0); - scc->conf.dma = pnp_dma(dev,0); - return; - } - if(!strncmp("ALS",scc->card_id,3)) { - if(!strncmp("ALS0007",scc->card_id,7)) { - scc->conf.io_base = pnp_port_start(dev,0); - scc->conf.irq = pnp_irq(dev,0); - scc->conf.dma = pnp_dma(dev,0); - } else { - scc->conf.io_base = pnp_port_start(dev,0); - scc->conf.irq = pnp_irq(dev,0); - scc->conf.dma = pnp_dma(dev,1); - scc->conf.dma2 = pnp_dma(dev,0); - } - return; - } - if(!strncmp("RTL",scc->card_id,3)) { - scc->conf.io_base = pnp_port_start(dev,0); - scc->conf.irq = pnp_irq(dev,0); - scc->conf.dma = pnp_dma(dev,1); - scc->conf.dma2 = pnp_dma(dev,0); - } -} - -static unsigned int sb_pnp_devices; - -/* Probe callback function for the PnP API */ -static int sb_pnp_probe(struct pnp_card_link *card, const struct pnp_card_device_id *card_id) -{ - struct sb_card_config *scc; - struct sb_module_options sbmo = {0}; /* Default to 0 for PnP */ - struct pnp_dev *dev = pnp_request_card_device(card, card_id->devs[0].id, NULL); - - if(!dev){ - return -EBUSY; - } - - if((scc = kzalloc(sizeof(struct sb_card_config), GFP_KERNEL)) == NULL) { - printk(KERN_ERR "sb: Error: Could not allocate memory\n"); - return -ENOMEM; - } - - printk(KERN_INFO "sb: PnP: Found Card Named = \"%s\", Card PnP id = " \ - "%s, Device PnP id = %s\n", card->card->name, card_id->id, - dev->id->id); - - scc->card_id = card_id->id; - scc->dev_id = dev->id->id; - sb_dev2cfg(dev, scc); - - printk(KERN_INFO "sb: PnP: Detected at: io=0x%x, irq=%d, " \ - "dma=%d, dma16=%d\n", scc->conf.io_base, scc->conf.irq, - scc->conf.dma, scc->conf.dma2); - - pnp_set_card_drvdata(card, scc); - sb_pnp_devices++; - - return sb_register_oss(scc, &sbmo); -} - -static void sb_pnp_remove(struct pnp_card_link *card) -{ - struct sb_card_config *scc = pnp_get_card_drvdata(card); - - if(!scc) - return; - - printk(KERN_INFO "sb: PnP: Removing %s\n", scc->card_id); - - sb_unload(scc); -} - -static struct pnp_card_driver sb_pnp_driver = { - .name = "OSS SndBlstr", /* 16 character limit */ - .id_table = sb_pnp_card_table, - .probe = sb_pnp_probe, - .remove = sb_pnp_remove, -}; -MODULE_DEVICE_TABLE(pnp_card, sb_pnp_card_table); -#endif /* CONFIG_PNP */ - -static void sb_unregister_all(void) -{ -#ifdef CONFIG_PNP - if (pnp_registered) - pnp_unregister_card_driver(&sb_pnp_driver); -#endif -} - -static int __init sb_init(void) -{ - int lres = 0; - int pres = 0; - - printk(KERN_INFO "sb: Init: Starting Probe...\n"); - - if(io != -1 && irq != -1 && dma != -1) { - printk(KERN_INFO "sb: Probing legacy card with io=%x, "\ - "irq=%d, dma=%d, dma16=%d\n",io, irq, dma, dma16); - lres = sb_init_legacy(); - } else if((io != -1 || irq != -1 || dma != -1) || - (!pnp && (io == -1 && irq == -1 && dma == -1))) - printk(KERN_ERR "sb: Error: At least io, irq, and dma "\ - "must be set for legacy cards.\n"); - -#ifdef CONFIG_PNP - if(pnp) { - int err = pnp_register_card_driver(&sb_pnp_driver); - if (!err) - pnp_registered = 1; - pres = sb_pnp_devices; - } -#endif - printk(KERN_INFO "sb: Init: Done\n"); - - /* If either PnP or Legacy registered a card then return - * success */ - if (pres == 0 && lres <= 0) { - sb_unregister_all(); - return -ENODEV; - } - return 0; -} - -static void __exit sb_exit(void) -{ - printk(KERN_INFO "sb: Unloading...\n"); - - /* Unload legacy card */ - if (legacy) { - printk (KERN_INFO "sb: Unloading legacy card\n"); - sb_unload(legacy); - } - - sb_unregister_all(); - - vfree(smw_free); - smw_free = NULL; -} - -module_init(sb_init); -module_exit(sb_exit); diff --git a/sound/oss/sb_card.h b/sound/oss/sb_card.h deleted file mode 100644 index 5535cff800df..000000000000 --- a/sound/oss/sb_card.h +++ /dev/null @@ -1,149 +0,0 @@ -/* - * sound/oss/sb_card.h - * - * This file is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this - * software for more info. - * - * 02-05-2002 Original Release, Paul Laufer - */ - -struct sb_card_config { - struct address_info conf; - struct address_info mpucnf; - const char *card_id; - const char *dev_id; - int mpu; -}; - -#ifdef CONFIG_PNP - -/* - * SoundBlaster PnP tables and structures. - */ - -/* Card PnP ID Table */ -static struct pnp_card_device_id sb_pnp_card_table[] = { - /* Sound Blaster 16 */ - {.id = "CTL0024", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster 16 */ - {.id = "CTL0025", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster 16 */ - {.id = "CTL0026", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster 16 */ - {.id = "CTL0027", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster 16 */ - {.id = "CTL0028", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster 16 */ - {.id = "CTL0029", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster 16 */ - {.id = "CTL002a", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster 16 */ - {.id = "CTL002b", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster 16 */ - {.id = "CTL002c", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster 16 */ - {.id = "CTL00ed", .driver_data = 0, .devs = { {.id="CTL0041"}, } }, - /* Sound Blaster 16 */ - {.id = "CTL0086", .driver_data = 0, .devs = { {.id="CTL0041"}, } }, - /* Sound Blaster Vibra16S */ - {.id = "CTL0051", .driver_data = 0, .devs = { {.id="CTL0001"}, } }, - /* Sound Blaster Vibra16C */ - {.id = "CTL0070", .driver_data = 0, .devs = { {.id="CTL0001"}, } }, - /* Sound Blaster Vibra16CL */ - {.id = "CTL0080", .driver_data = 0, .devs = { {.id="CTL0041"}, } }, - /* Sound Blaster Vibra16CL */ - {.id = "CTL00F0", .driver_data = 0, .devs = { {.id="CTL0043"}, } }, - /* Sound Blaster AWE 32 */ - {.id = "CTL0039", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster AWE 32 */ - {.id = "CTL0042", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster AWE 32 */ - {.id = "CTL0043", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster AWE 32 */ - {.id = "CTL0044", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster AWE 32 */ - {.id = "CTL0045", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster AWE 32 */ - {.id = "CTL0046", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster AWE 32 */ - {.id = "CTL0047", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster AWE 32 */ - {.id = "CTL0048", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster AWE 32 */ - {.id = "CTL0054", .driver_data = 0, .devs = { {.id="CTL0031"}, } }, - /* Sound Blaster AWE 32 */ - {.id = "CTL009C", .driver_data = 0, .devs = { {.id="CTL0041"}, } }, - /* Createive SB32 PnP */ - {.id = "CTL009F", .driver_data = 0, .devs = { {.id="CTL0041"}, } }, - /* Sound Blaster AWE 64 */ - {.id = "CTL009D", .driver_data = 0, .devs = { {.id="CTL0042"}, } }, - /* Sound Blaster AWE 64 Gold */ - {.id = "CTL009E", .driver_data = 0, .devs = { {.id="CTL0044"}, } }, - /* Sound Blaster AWE 64 Gold */ - {.id = "CTL00B2", .driver_data = 0, .devs = { {.id="CTL0044"}, } }, - /* Sound Blaster AWE 64 */ - {.id = "CTL00C1", .driver_data = 0, .devs = { {.id="CTL0042"}, } }, - /* Sound Blaster AWE 64 */ - {.id = "CTL00C3", .driver_data = 0, .devs = { {.id="CTL0045"}, } }, - /* Sound Blaster AWE 64 */ - {.id = "CTL00C5", .driver_data = 0, .devs = { {.id="CTL0045"}, } }, - /* Sound Blaster AWE 64 */ - {.id = "CTL00C7", .driver_data = 0, .devs = { {.id="CTL0045"}, } }, - /* Sound Blaster AWE 64 */ - {.id = "CTL00E4", .driver_data = 0, .devs = { {.id="CTL0045"}, } }, - /* Sound Blaster AWE 64 */ - {.id = "CTL00E9", .driver_data = 0, .devs = { {.id="CTL0045"}, } }, - /* ESS 1868 */ - {.id = "ESS0968", .driver_data = 0, .devs = { {.id="ESS0968"}, } }, - /* ESS 1868 */ - {.id = "ESS1868", .driver_data = 0, .devs = { {.id="ESS1868"}, } }, - /* ESS 1868 */ - {.id = "ESS1868", .driver_data = 0, .devs = { {.id="ESS8611"}, } }, - /* ESS 1869 PnP AudioDrive */ - {.id = "ESS0003", .driver_data = 0, .devs = { {.id="ESS1869"}, } }, - /* ESS 1869 */ - {.id = "ESS1869", .driver_data = 0, .devs = { {.id="ESS1869"}, } }, - /* ESS 1878 */ - {.id = "ESS1878", .driver_data = 0, .devs = { {.id="ESS1878"}, } }, - /* ESS 1879 */ - {.id = "ESS1879", .driver_data = 0, .devs = { {.id="ESS1879"}, } }, - /* CMI 8330 SoundPRO */ - {.id = "CMI0001", .driver_data = 0, .devs = { {.id="@X@0001"}, - {.id="@H@0001"}, - {.id="@@@0001"}, } }, - /* Diamond DT0197H */ - {.id = "RWR1688", .driver_data = 0, .devs = { {.id="@@@0001"}, - {.id="@X@0001"}, - {.id="@H@0001"}, } }, - /* ALS007 */ - {.id = "ALS0007", .driver_data = 0, .devs = { {.id="@@@0001"}, - {.id="@X@0001"}, - {.id="@H@0001"}, } }, - /* ALS100 */ - {.id = "ALS0001", .driver_data = 0, .devs = { {.id="@@@0001"}, - {.id="@X@0001"}, - {.id="@H@0001"}, } }, - /* ALS110 */ - {.id = "ALS0110", .driver_data = 0, .devs = { {.id="@@@1001"}, - {.id="@X@1001"}, - {.id="@H@0001"}, } }, - /* ALS120 */ - {.id = "ALS0120", .driver_data = 0, .devs = { {.id="@@@2001"}, - {.id="@X@2001"}, - {.id="@H@0001"}, } }, - /* ALS200 */ - {.id = "ALS0200", .driver_data = 0, .devs = { {.id="@@@0020"}, - {.id="@X@0030"}, - {.id="@H@0001"}, } }, - /* ALS200 */ - {.id = "RTL3000", .driver_data = 0, .devs = { {.id="@@@2001"}, - {.id="@X@2001"}, - {.id="@H@0001"}, } }, - /* Sound Blaster 16 (Virtual PC 2004) */ - {.id = "tBA03b0", .driver_data = 0, .devs = { {.id="PNPb003"}, } }, - /* -end- */ - {.id = "", } -}; - -#endif diff --git a/sound/oss/sb_common.c b/sound/oss/sb_common.c deleted file mode 100644 index 3d50fb4236ed..000000000000 --- a/sound/oss/sb_common.c +++ /dev/null @@ -1,1287 +0,0 @@ -/* - * sound/oss/sb_common.c - * - * Common routines for Sound Blaster compatible cards. - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * Daniel J. Rodriksson: Modified sbintr to handle 8 and 16 bit interrupts - * for full duplex support ( only sb16 by now ) - * Rolf Fokkens: Added (BETA?) support for ES1887 chips. - * (fokkensr@vertis.nl) Which means: You can adjust the recording levels. - * - * 2000/01/18 - separated sb_card and sb_common - - * Jeff Garzik - * - * 2000/09/18 - got rid of attach_uart401 - * Arnaldo Carvalho de Melo - * - * 2001/01/26 - replaced CLI/STI with spinlocks - * Chris Rankin - */ - -#include -#include -#include -#include -#include -#include - -#include "sound_config.h" -#include "sound_firmware.h" - -#include "mpu401.h" - -#include "sb_mixer.h" -#include "sb.h" -#include "sb_ess.h" - -/* - * global module flag - */ - -int sb_be_quiet; - -static sb_devc *detected_devc; /* For communication from probe to init */ -static sb_devc *last_devc; /* For MPU401 initialization */ - -static unsigned char jazz_irq_bits[] = { - 0, 0, 2, 3, 0, 1, 0, 4, 0, 2, 5, 0, 0, 0, 0, 6 -}; - -static unsigned char jazz_dma_bits[] = { - 0, 1, 0, 2, 0, 3, 0, 4 -}; - -void *smw_free; - -/* - * Jazz16 chipset specific control variables - */ - -static int jazz16_base; /* Not detected */ -static unsigned char jazz16_bits; /* I/O relocation bits */ -static DEFINE_SPINLOCK(jazz16_lock); - -/* - * Logitech Soundman Wave specific initialization code - */ - -#ifdef SMW_MIDI0001_INCLUDED -#include "smw-midi0001.h" -#else -static unsigned char *smw_ucode; -static int smw_ucodeLen; - -#endif - -static sb_devc *last_sb; /* Last sb loaded */ - -int sb_dsp_command(sb_devc * devc, unsigned char val) -{ - int i; - unsigned long limit; - - limit = jiffies + HZ / 10; /* Timeout */ - - /* - * Note! the i<500000 is an emergency exit. The sb_dsp_command() is sometimes - * called while interrupts are disabled. This means that the timer is - * disabled also. However the timeout situation is a abnormal condition. - * Normally the DSP should be ready to accept commands after just couple of - * loops. - */ - - for (i = 0; i < 500000 && (limit-jiffies)>0; i++) - { - if ((inb(DSP_STATUS) & 0x80) == 0) - { - outb((val), DSP_COMMAND); - return 1; - } - } - printk(KERN_WARNING "Sound Blaster: DSP command(%x) timeout.\n", val); - return 0; -} - -int sb_dsp_get_byte(sb_devc * devc) -{ - int i; - - for (i = 1000; i; i--) - { - if (inb(DSP_DATA_AVAIL) & 0x80) - return inb(DSP_READ); - } - return 0xffff; -} - -static void sb_intr (sb_devc *devc) -{ - int status; - unsigned char src = 0xff; - - if (devc->model == MDL_SB16) - { - src = sb_getmixer(devc, IRQ_STAT); /* Interrupt source register */ - - if (src & 4) /* MPU401 interrupt */ - if(devc->midi_irq_cookie) - uart401intr(devc->irq, devc->midi_irq_cookie); - - if (!(src & 3)) - return; /* Not a DSP interrupt */ - } - if (devc->intr_active && (!devc->fullduplex || (src & 0x01))) - { - switch (devc->irq_mode) - { - case IMODE_OUTPUT: - DMAbuf_outputintr(devc->dev, 1); - break; - - case IMODE_INPUT: - DMAbuf_inputintr(devc->dev); - break; - - case IMODE_INIT: - break; - - case IMODE_MIDI: - sb_midi_interrupt(devc); - break; - - default: - /* printk(KERN_WARNING "Sound Blaster: Unexpected interrupt\n"); */ - ; - } - } - else if (devc->intr_active_16 && (src & 0x02)) - { - switch (devc->irq_mode_16) - { - case IMODE_OUTPUT: - DMAbuf_outputintr(devc->dev, 1); - break; - - case IMODE_INPUT: - DMAbuf_inputintr(devc->dev); - break; - - case IMODE_INIT: - break; - - default: - /* printk(KERN_WARNING "Sound Blaster: Unexpected interrupt\n"); */ - ; - } - } - /* - * Acknowledge interrupts - */ - - if (src & 0x01) - status = inb(DSP_DATA_AVAIL); - - if (devc->model == MDL_SB16 && src & 0x02) - status = inb(DSP_DATA_AVL16); -} - -static void pci_intr(sb_devc *devc) -{ - int src = inb(devc->pcibase+0x1A); - src&=3; - if(src) - sb_intr(devc); -} - -static irqreturn_t sbintr(int irq, void *dev_id) -{ - sb_devc *devc = dev_id; - - devc->irq_ok = 1; - - switch (devc->model) { - case MDL_ESSPCI: - pci_intr (devc); - break; - - case MDL_ESS: - ess_intr (devc); - break; - default: - sb_intr (devc); - break; - } - return IRQ_HANDLED; -} - -int sb_dsp_reset(sb_devc * devc) -{ - int loopc; - - if (devc->model == MDL_ESS) return ess_dsp_reset (devc); - - /* This is only for non-ESS chips */ - - outb(1, DSP_RESET); - - udelay(10); - outb(0, DSP_RESET); - udelay(30); - - for (loopc = 0; loopc < 1000 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++); - - if (inb(DSP_READ) != 0xAA) - { - DDB(printk("sb: No response to RESET\n")); - return 0; /* Sorry */ - } - - return 1; -} - -static void dsp_get_vers(sb_devc * devc) -{ - int i; - - unsigned long flags; - - DDB(printk("Entered dsp_get_vers()\n")); - spin_lock_irqsave(&devc->lock, flags); - devc->major = devc->minor = 0; - sb_dsp_command(devc, 0xe1); /* Get version */ - - for (i = 100000; i; i--) - { - if (inb(DSP_DATA_AVAIL) & 0x80) - { - if (devc->major == 0) - devc->major = inb(DSP_READ); - else - { - devc->minor = inb(DSP_READ); - break; - } - } - } - spin_unlock_irqrestore(&devc->lock, flags); - DDB(printk("DSP version %d.%02d\n", devc->major, devc->minor)); -} - -static int sb16_set_dma_hw(sb_devc * devc) -{ - int bits; - - if (devc->dma8 != 0 && devc->dma8 != 1 && devc->dma8 != 3) - { - printk(KERN_ERR "SB16: Invalid 8 bit DMA (%d)\n", devc->dma8); - return 0; - } - bits = (1 << devc->dma8); - - if (devc->dma16 >= 5 && devc->dma16 <= 7) - bits |= (1 << devc->dma16); - - sb_setmixer(devc, DMA_NR, bits); - return 1; -} - -static void sb16_set_mpu_port(sb_devc * devc, struct address_info *hw_config) -{ - /* - * This routine initializes new MIDI port setup register of SB Vibra (CT2502). - */ - unsigned char bits = sb_getmixer(devc, 0x84) & ~0x06; - - switch (hw_config->io_base) - { - case 0x300: - sb_setmixer(devc, 0x84, bits | 0x04); - break; - - case 0x330: - sb_setmixer(devc, 0x84, bits | 0x00); - break; - - default: - sb_setmixer(devc, 0x84, bits | 0x02); /* Disable MPU */ - printk(KERN_ERR "SB16: Invalid MIDI I/O port %x\n", hw_config->io_base); - } -} - -static int sb16_set_irq_hw(sb_devc * devc, int level) -{ - int ival; - - switch (level) - { - case 5: - ival = 2; - break; - case 7: - ival = 4; - break; - case 9: - ival = 1; - break; - case 10: - ival = 8; - break; - default: - printk(KERN_ERR "SB16: Invalid IRQ%d\n", level); - return 0; - } - sb_setmixer(devc, IRQ_NR, ival); - return 1; -} - -static void relocate_Jazz16(sb_devc * devc, struct address_info *hw_config) -{ - unsigned char bits = 0; - unsigned long flags; - - if (jazz16_base != 0 && jazz16_base != hw_config->io_base) - return; - - switch (hw_config->io_base) - { - case 0x220: - bits = 1; - break; - case 0x240: - bits = 2; - break; - case 0x260: - bits = 3; - break; - default: - return; - } - bits = jazz16_bits = bits << 5; - jazz16_base = hw_config->io_base; - - /* - * Magic wake up sequence by writing to 0x201 (aka Joystick port) - */ - spin_lock_irqsave(&jazz16_lock, flags); - outb((0xAF), 0x201); - outb((0x50), 0x201); - outb((bits), 0x201); - spin_unlock_irqrestore(&jazz16_lock, flags); -} - -static int init_Jazz16(sb_devc * devc, struct address_info *hw_config) -{ - char name[100]; - /* - * First try to check that the card has Jazz16 chip. It identifies itself - * by returning 0x12 as response to DSP command 0xfa. - */ - - if (!sb_dsp_command(devc, 0xfa)) - return 0; - - if (sb_dsp_get_byte(devc) != 0x12) - return 0; - - /* - * OK so far. Now configure the IRQ and DMA channel used by the card. - */ - if (hw_config->irq < 1 || hw_config->irq > 15 || jazz_irq_bits[hw_config->irq] == 0) - { - printk(KERN_ERR "Jazz16: Invalid interrupt (IRQ%d)\n", hw_config->irq); - return 0; - } - if (hw_config->dma < 0 || hw_config->dma > 3 || jazz_dma_bits[hw_config->dma] == 0) - { - printk(KERN_ERR "Jazz16: Invalid 8 bit DMA (DMA%d)\n", hw_config->dma); - return 0; - } - if (hw_config->dma2 < 0) - { - printk(KERN_ERR "Jazz16: No 16 bit DMA channel defined\n"); - return 0; - } - if (hw_config->dma2 < 5 || hw_config->dma2 > 7 || jazz_dma_bits[hw_config->dma2] == 0) - { - printk(KERN_ERR "Jazz16: Invalid 16 bit DMA (DMA%d)\n", hw_config->dma2); - return 0; - } - devc->dma16 = hw_config->dma2; - - if (!sb_dsp_command(devc, 0xfb)) - return 0; - - if (!sb_dsp_command(devc, jazz_dma_bits[hw_config->dma] | - (jazz_dma_bits[hw_config->dma2] << 4))) - return 0; - - if (!sb_dsp_command(devc, jazz_irq_bits[hw_config->irq])) - return 0; - - /* - * Now we have configured a standard Jazz16 device. - */ - devc->model = MDL_JAZZ; - strcpy(name, "Jazz16"); - - hw_config->name = "Jazz16"; - devc->caps |= SB_NO_MIDI; - return 1; -} - -static void relocate_ess1688(sb_devc * devc) -{ - unsigned char bits; - - switch (devc->base) - { - case 0x220: - bits = 0x04; - break; - case 0x230: - bits = 0x05; - break; - case 0x240: - bits = 0x06; - break; - case 0x250: - bits = 0x07; - break; - default: - return; /* Wrong port */ - } - - DDB(printk("Doing ESS1688 address selection\n")); - - /* - * ES1688 supports two alternative ways for software address config. - * First try the so called Read-Sequence-Key method. - */ - - /* Reset the sequence logic */ - inb(0x229); - inb(0x229); - inb(0x229); - - /* Perform the read sequence */ - inb(0x22b); - inb(0x229); - inb(0x22b); - inb(0x229); - inb(0x229); - inb(0x22b); - inb(0x229); - - /* Select the base address by reading from it. Then probe using the port. */ - inb(devc->base); - if (sb_dsp_reset(devc)) /* Bingo */ - return; - -#if 0 /* This causes system lockups (Nokia 386/25 at least) */ - /* - * The last resort is the system control register method. - */ - - outb((0x00), 0xfb); /* 0xFB is the unlock register */ - outb((0x00), 0xe0); /* Select index 0 */ - outb((bits), 0xe1); /* Write the config bits */ - outb((0x00), 0xf9); /* 0xFB is the lock register */ -#endif -} - -int sb_dsp_detect(struct address_info *hw_config, int pci, int pciio, struct sb_module_options *sbmo) -{ - sb_devc sb_info; - sb_devc *devc = &sb_info; - - memset((char *) &sb_info, 0, sizeof(sb_info)); /* Zero everything */ - - /* Copy module options in place */ - if(sbmo) memcpy(&devc->sbmo, sbmo, sizeof(struct sb_module_options)); - - sb_info.my_mididev = -1; - sb_info.my_mixerdev = -1; - sb_info.dev = -1; - - /* - * Initialize variables - */ - - DDB(printk("sb_dsp_detect(%x) entered\n", hw_config->io_base)); - - spin_lock_init(&devc->lock); - devc->type = hw_config->card_subtype; - - devc->base = hw_config->io_base; - devc->irq = hw_config->irq; - devc->dma8 = hw_config->dma; - - devc->dma16 = -1; - devc->pcibase = pciio; - - if(pci == SB_PCI_ESSMAESTRO) - { - devc->model = MDL_ESSPCI; - devc->caps |= SB_PCI_IRQ; - hw_config->driver_use_1 |= SB_PCI_IRQ; - hw_config->card_subtype = MDL_ESSPCI; - } - - if(pci == SB_PCI_YAMAHA) - { - devc->model = MDL_YMPCI; - devc->caps |= SB_PCI_IRQ; - hw_config->driver_use_1 |= SB_PCI_IRQ; - hw_config->card_subtype = MDL_YMPCI; - - printk("Yamaha PCI mode.\n"); - } - - if (devc->sbmo.acer) - { - unsigned long flags; - - spin_lock_irqsave(&devc->lock, flags); - inb(devc->base + 0x09); - inb(devc->base + 0x09); - inb(devc->base + 0x09); - inb(devc->base + 0x0b); - inb(devc->base + 0x09); - inb(devc->base + 0x0b); - inb(devc->base + 0x09); - inb(devc->base + 0x09); - inb(devc->base + 0x0b); - inb(devc->base + 0x09); - inb(devc->base + 0x00); - spin_unlock_irqrestore(&devc->lock, flags); - } - /* - * Detect the device - */ - - if (sb_dsp_reset(devc)) - dsp_get_vers(devc); - else - devc->major = 0; - - if (devc->type == 0 || devc->type == MDL_JAZZ || devc->type == MDL_SMW) - if (devc->major == 0 || (devc->major == 3 && devc->minor == 1)) - relocate_Jazz16(devc, hw_config); - - if (devc->major == 0 && (devc->type == MDL_ESS || devc->type == 0)) - relocate_ess1688(devc); - - if (!sb_dsp_reset(devc)) - { - DDB(printk("SB reset failed\n")); -#ifdef MODULE - printk(KERN_INFO "sb: dsp reset failed.\n"); -#endif - return 0; - } - if (devc->major == 0) - dsp_get_vers(devc); - - if (devc->major == 3 && devc->minor == 1) - { - if (devc->type == MDL_AZTECH) /* SG Washington? */ - { - if (sb_dsp_command(devc, 0x09)) - if (sb_dsp_command(devc, 0x00)) /* Enter WSS mode */ - { - int i; - - /* Have some delay */ - for (i = 0; i < 10000; i++) - inb(DSP_DATA_AVAIL); - devc->caps = SB_NO_AUDIO | SB_NO_MIDI; /* Mixer only */ - devc->model = MDL_AZTECH; - } - } - } - - if(devc->type == MDL_ESSPCI) - devc->model = MDL_ESSPCI; - - if(devc->type == MDL_YMPCI) - { - printk("YMPCI selected\n"); - devc->model = MDL_YMPCI; - } - - /* - * Save device information for sb_dsp_init() - */ - - - detected_devc = kmemdup(devc, sizeof(sb_devc), GFP_KERNEL); - if (detected_devc == NULL) - { - printk(KERN_ERR "sb: Can't allocate memory for device information\n"); - return 0; - } - MDB(printk(KERN_INFO "SB %d.%02d detected OK (%x)\n", devc->major, devc->minor, hw_config->io_base)); - return 1; -} - -int sb_dsp_init(struct address_info *hw_config, struct module *owner) -{ - sb_devc *devc; - char name[100]; - extern int sb_be_quiet; - int mixer22, mixer30; - -/* - * Check if we had detected a SB device earlier - */ - DDB(printk("sb_dsp_init(%x) entered\n", hw_config->io_base)); - name[0] = 0; - - if (detected_devc == NULL) - { - MDB(printk("No detected device\n")); - return 0; - } - devc = detected_devc; - detected_devc = NULL; - - if (devc->base != hw_config->io_base) - { - DDB(printk("I/O port mismatch\n")); - release_region(devc->base, 16); - return 0; - } - /* - * Now continue initialization of the device - */ - - devc->caps = hw_config->driver_use_1; - - if (!((devc->caps & SB_NO_AUDIO) && (devc->caps & SB_NO_MIDI)) && hw_config->irq > 0) - { /* IRQ setup */ - - /* - * ESS PCI cards do shared PCI IRQ stuff. Since they - * will get shared PCI irq lines we must cope. - */ - - int i=(devc->caps&SB_PCI_IRQ)?IRQF_SHARED:0; - - if (request_irq(hw_config->irq, sbintr, i, "soundblaster", devc) < 0) - { - printk(KERN_ERR "SB: Can't allocate IRQ%d\n", hw_config->irq); - release_region(devc->base, 16); - return 0; - } - devc->irq_ok = 0; - - if (devc->major == 4) - if (!sb16_set_irq_hw(devc, devc->irq)) /* Unsupported IRQ */ - { - free_irq(devc->irq, devc); - release_region(devc->base, 16); - return 0; - } - if ((devc->type == 0 || devc->type == MDL_ESS) && - devc->major == 3 && devc->minor == 1) - { /* Handle various chipsets which claim they are SB Pro compatible */ - if ((devc->type != 0 && devc->type != MDL_ESS) || - !ess_init(devc, hw_config)) - { - if ((devc->type != 0 && devc->type != MDL_JAZZ && - devc->type != MDL_SMW) || !init_Jazz16(devc, hw_config)) - { - DDB(printk("This is a genuine SB Pro\n")); - } - } - } - if (devc->major == 4 && devc->minor <= 11 ) /* Won't work */ - devc->irq_ok = 1; - else - { - int n; - - for (n = 0; n < 3 && devc->irq_ok == 0; n++) - { - if (sb_dsp_command(devc, 0xf2)) /* Cause interrupt immediately */ - { - int i; - - for (i = 0; !devc->irq_ok && i < 10000; i++); - } - } - if (!devc->irq_ok) - printk(KERN_WARNING "sb: Interrupt test on IRQ%d failed - Probable IRQ conflict\n", devc->irq); - else - { - DDB(printk("IRQ test OK (IRQ%d)\n", devc->irq)); - } - } - } /* IRQ setup */ - - last_sb = devc; - - switch (devc->major) - { - case 1: /* SB 1.0 or 1.5 */ - devc->model = hw_config->card_subtype = MDL_SB1; - break; - - case 2: /* SB 2.x */ - if (devc->minor == 0) - devc->model = hw_config->card_subtype = MDL_SB2; - else - devc->model = hw_config->card_subtype = MDL_SB201; - break; - - case 3: /* SB Pro and most clones */ - switch (devc->model) { - case 0: - devc->model = hw_config->card_subtype = MDL_SBPRO; - if (hw_config->name == NULL) - hw_config->name = "Sound Blaster Pro (8 BIT ONLY)"; - break; - case MDL_ESS: - ess_dsp_init(devc, hw_config); - break; - } - break; - - case 4: - devc->model = hw_config->card_subtype = MDL_SB16; - /* - * ALS007 and ALS100 return DSP version 4.2 and have 2 post-reset !=0 - * registers at 0x3c and 0x4c (output ctrl registers on ALS007) whereas - * a "standard" SB16 doesn't have a register at 0x4c. ALS100 actively - * updates register 0x22 whenever 0x30 changes, as per the SB16 spec. - * Since ALS007 doesn't, this can be used to differentiate the 2 cards. - */ - if ((devc->minor == 2) && sb_getmixer(devc,0x3c) && sb_getmixer(devc,0x4c)) - { - mixer30 = sb_getmixer(devc,0x30); - sb_setmixer(devc,0x22,(mixer22=sb_getmixer(devc,0x22)) & 0x0f); - sb_setmixer(devc,0x30,0xff); - /* ALS100 will force 0x30 to 0xf8 like SB16; ALS007 will allow 0xff. */ - /* Register 0x22 & 0xf0 on ALS100 == 0xf0; on ALS007 it == 0x10. */ - if ((sb_getmixer(devc,0x30) != 0xff) || ((sb_getmixer(devc,0x22) & 0xf0) != 0x10)) - { - devc->submodel = SUBMDL_ALS100; - if (hw_config->name == NULL) - hw_config->name = "Sound Blaster 16 (ALS-100)"; - } - else - { - sb_setmixer(devc,0x3c,0x1f); /* Enable all inputs */ - sb_setmixer(devc,0x4c,0x1f); - sb_setmixer(devc,0x22,mixer22); /* Restore 0x22 to original value */ - devc->submodel = SUBMDL_ALS007; - if (hw_config->name == NULL) - hw_config->name = "Sound Blaster 16 (ALS-007)"; - } - sb_setmixer(devc,0x30,mixer30); - } - else if (hw_config->name == NULL) - hw_config->name = "Sound Blaster 16"; - - if (hw_config->dma2 == -1) - devc->dma16 = devc->dma8; - else if (hw_config->dma2 < 5 || hw_config->dma2 > 7) - { - printk(KERN_WARNING "SB16: Bad or missing 16 bit DMA channel\n"); - devc->dma16 = devc->dma8; - } - else - devc->dma16 = hw_config->dma2; - - if(!sb16_set_dma_hw(devc)) { - free_irq(devc->irq, devc); - release_region(hw_config->io_base, 16); - return 0; - } - - devc->caps |= SB_NO_MIDI; - } - - if (!(devc->caps & SB_NO_MIXER)) - if (devc->major == 3 || devc->major == 4) - sb_mixer_init(devc, owner); - - if (!(devc->caps & SB_NO_MIDI)) - sb_dsp_midi_init(devc, owner); - - if (hw_config->name == NULL) - hw_config->name = "Sound Blaster (8 BIT/MONO ONLY)"; - - sprintf(name, "%s (%d.%02d)", hw_config->name, devc->major, devc->minor); - conf_printf(name, hw_config); - - /* - * Assuming that a sound card is Sound Blaster (compatible) is the most common - * configuration error and the mother of all problems. Usually sound cards - * emulate SB Pro but in addition they have a 16 bit native mode which should be - * used in Unix. See Readme.cards for more information about configuring OSS/Free - * properly. - */ - if (devc->model <= MDL_SBPRO) - { - if (devc->major == 3 && devc->minor != 1) /* "True" SB Pro should have v3.1 (rare ones may have 3.2). */ - { - printk(KERN_INFO "This sound card may not be fully Sound Blaster Pro compatible.\n"); - printk(KERN_INFO "In many cases there is another way to configure OSS so that\n"); - printk(KERN_INFO "it works properly with OSS (for example in 16 bit mode).\n"); - printk(KERN_INFO "Please ignore this message if you _really_ have a SB Pro.\n"); - } - else if (!sb_be_quiet && devc->model == MDL_SBPRO) - { - printk(KERN_INFO "SB DSP version is just %d.%02d which means that your card is\n", devc->major, devc->minor); - printk(KERN_INFO "several years old (8 bit only device) or alternatively the sound driver\n"); - printk(KERN_INFO "is incorrectly configured.\n"); - } - } - hw_config->card_subtype = devc->model; - hw_config->slots[0]=devc->dev; - last_devc = devc; /* For SB MPU detection */ - - if (!(devc->caps & SB_NO_AUDIO) && devc->dma8 >= 0) - { - if (sound_alloc_dma(devc->dma8, "SoundBlaster8")) - { - printk(KERN_WARNING "Sound Blaster: Can't allocate 8 bit DMA channel %d\n", devc->dma8); - } - if (devc->dma16 >= 0 && devc->dma16 != devc->dma8) - { - if (sound_alloc_dma(devc->dma16, "SoundBlaster16")) - printk(KERN_WARNING "Sound Blaster: can't allocate 16 bit DMA channel %d.\n", devc->dma16); - } - sb_audio_init(devc, name, owner); - hw_config->slots[0]=devc->dev; - } - else - { - MDB(printk("Sound Blaster: no audio devices found.\n")); - } - return 1; -} - -/* if (sbmpu) below we allow mpu401 to manage the midi devs - otherwise we have to unload them. (Andrzej Krzysztofowicz) */ - -void sb_dsp_unload(struct address_info *hw_config, int sbmpu) -{ - sb_devc *devc; - - devc = audio_devs[hw_config->slots[0]]->devc; - - if (devc && devc->base == hw_config->io_base) - { - if ((devc->model & MDL_ESS) && devc->pcibase) - release_region(devc->pcibase, 8); - - release_region(devc->base, 16); - - if (!(devc->caps & SB_NO_AUDIO)) - { - sound_free_dma(devc->dma8); - if (devc->dma16 >= 0) - sound_free_dma(devc->dma16); - } - if (!(devc->caps & SB_NO_AUDIO && devc->caps & SB_NO_MIDI)) - { - if (devc->irq > 0) - free_irq(devc->irq, devc); - - sb_mixer_unload(devc); - /* We don't have to do this bit any more the UART401 is its own - master -- Krzysztof Halasa */ - /* But we have to do it, if UART401 is not detected */ - if (!sbmpu) - sound_unload_mididev(devc->my_mididev); - sound_unload_audiodev(devc->dev); - } - kfree(devc); - } - else - release_region(hw_config->io_base, 16); - - kfree(detected_devc); -} - -/* - * Mixer access routines - * - * ES1887 modifications: some mixer registers reside in the - * range above 0xa0. These must be accessed in another way. - */ - -void sb_setmixer(sb_devc * devc, unsigned int port, unsigned int value) -{ - unsigned long flags; - - if (devc->model == MDL_ESS) { - ess_setmixer (devc, port, value); - return; - } - - spin_lock_irqsave(&devc->lock, flags); - - outb(((unsigned char) (port & 0xff)), MIXER_ADDR); - udelay(20); - outb(((unsigned char) (value & 0xff)), MIXER_DATA); - udelay(20); - - spin_unlock_irqrestore(&devc->lock, flags); -} - -unsigned int sb_getmixer(sb_devc * devc, unsigned int port) -{ - unsigned int val; - unsigned long flags; - - if (devc->model == MDL_ESS) return ess_getmixer (devc, port); - - spin_lock_irqsave(&devc->lock, flags); - - outb(((unsigned char) (port & 0xff)), MIXER_ADDR); - udelay(20); - val = inb(MIXER_DATA); - udelay(20); - - spin_unlock_irqrestore(&devc->lock, flags); - - return val; -} - -void sb_chgmixer - (sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val) -{ - int value; - - value = sb_getmixer(devc, reg); - value = (value & ~mask) | (val & mask); - sb_setmixer(devc, reg, value); -} - -/* - * MPU401 MIDI initialization. - */ - -static void smw_putmem(sb_devc * devc, int base, int addr, unsigned char val) -{ - unsigned long flags; - - spin_lock_irqsave(&jazz16_lock, flags); /* NOT the SB card? */ - - outb((addr & 0xff), base + 1); /* Low address bits */ - outb((addr >> 8), base + 2); /* High address bits */ - outb((val), base); /* Data */ - - spin_unlock_irqrestore(&jazz16_lock, flags); -} - -static unsigned char smw_getmem(sb_devc * devc, int base, int addr) -{ - unsigned long flags; - unsigned char val; - - spin_lock_irqsave(&jazz16_lock, flags); /* NOT the SB card? */ - - outb((addr & 0xff), base + 1); /* Low address bits */ - outb((addr >> 8), base + 2); /* High address bits */ - val = inb(base); /* Data */ - - spin_unlock_irqrestore(&jazz16_lock, flags); - return val; -} - -static int smw_midi_init(sb_devc * devc, struct address_info *hw_config) -{ - int mpu_base = hw_config->io_base; - int mp_base = mpu_base + 4; /* Microcontroller base */ - int i; - unsigned char control; - - - /* - * Reset the microcontroller so that the RAM can be accessed - */ - - control = inb(mpu_base + 7); - outb((control | 3), mpu_base + 7); /* Set last two bits to 1 (?) */ - outb(((control & 0xfe) | 2), mpu_base + 7); /* xxxxxxx0 resets the mc */ - - mdelay(3); /* Wait at least 1ms */ - - outb((control & 0xfc), mpu_base + 7); /* xxxxxx00 enables RAM */ - - /* - * Detect microcontroller by probing the 8k RAM area - */ - smw_putmem(devc, mp_base, 0, 0x00); - smw_putmem(devc, mp_base, 1, 0xff); - udelay(10); - - if (smw_getmem(devc, mp_base, 0) != 0x00 || smw_getmem(devc, mp_base, 1) != 0xff) - { - DDB(printk("SM Wave: No microcontroller RAM detected (%02x, %02x)\n", smw_getmem(devc, mp_base, 0), smw_getmem(devc, mp_base, 1))); - return 0; /* No RAM */ - } - /* - * There is RAM so assume it's really a SM Wave - */ - - devc->model = MDL_SMW; - smw_mixer_init(devc); - -#ifdef MODULE - if (!smw_ucode) - { - smw_ucodeLen = mod_firmware_load("/etc/sound/midi0001.bin", (void *) &smw_ucode); - smw_free = smw_ucode; - } -#endif - if (smw_ucodeLen > 0) - { - if (smw_ucodeLen != 8192) - { - printk(KERN_ERR "SM Wave: Invalid microcode (MIDI0001.BIN) length\n"); - return 1; - } - /* - * Download microcode - */ - - for (i = 0; i < 8192; i++) - smw_putmem(devc, mp_base, i, smw_ucode[i]); - - /* - * Verify microcode - */ - - for (i = 0; i < 8192; i++) - if (smw_getmem(devc, mp_base, i) != smw_ucode[i]) - { - printk(KERN_ERR "SM Wave: Microcode verification failed\n"); - return 0; - } - } - control = 0; -#ifdef SMW_SCSI_IRQ - /* - * Set the SCSI interrupt (IRQ2/9, IRQ3 or IRQ10). The SCSI interrupt - * is disabled by default. - * - * FIXME - make this a module option - * - * BTW the Zilog 5380 SCSI controller is located at MPU base + 0x10. - */ - { - static unsigned char scsi_irq_bits[] = { - 0, 0, 3, 1, 0, 0, 0, 0, 0, 3, 2, 0, 0, 0, 0, 0 - }; - control |= scsi_irq_bits[SMW_SCSI_IRQ] << 6; - } -#endif - -#ifdef SMW_OPL4_ENABLE - /* - * Make the OPL4 chip visible on the PC bus at 0x380. - * - * There is no need to enable this feature since this driver - * doesn't support OPL4 yet. Also there is no RAM in SM Wave so - * enabling OPL4 is pretty useless. - */ - control |= 0x10; /* Uses IRQ12 if bit 0x20 == 0 */ - /* control |= 0x20; Uncomment this if you want to use IRQ7 */ -#endif - outb((control | 0x03), mpu_base + 7); /* xxxxxx11 restarts */ - hw_config->name = "SoundMan Wave"; - return 1; -} - -static int init_Jazz16_midi(sb_devc * devc, struct address_info *hw_config) -{ - int mpu_base = hw_config->io_base; - int sb_base = devc->base; - int irq = hw_config->irq; - - unsigned char bits = 0; - unsigned long flags; - - if (irq < 0) - irq *= -1; - - if (irq < 1 || irq > 15 || - jazz_irq_bits[irq] == 0) - { - printk(KERN_ERR "Jazz16: Invalid MIDI interrupt (IRQ%d)\n", irq); - return 0; - } - switch (sb_base) - { - case 0x220: - bits = 1; - break; - case 0x240: - bits = 2; - break; - case 0x260: - bits = 3; - break; - default: - return 0; - } - bits = jazz16_bits = bits << 5; - switch (mpu_base) - { - case 0x310: - bits |= 1; - break; - case 0x320: - bits |= 2; - break; - case 0x330: - bits |= 3; - break; - default: - printk(KERN_ERR "Jazz16: Invalid MIDI I/O port %x\n", mpu_base); - return 0; - } - /* - * Magic wake up sequence by writing to 0x201 (aka Joystick port) - */ - spin_lock_irqsave(&jazz16_lock, flags); - outb(0xAF, 0x201); - outb(0x50, 0x201); - outb(bits, 0x201); - spin_unlock_irqrestore(&jazz16_lock, flags); - - hw_config->name = "Jazz16"; - smw_midi_init(devc, hw_config); - - if (!sb_dsp_command(devc, 0xfb)) - return 0; - - if (!sb_dsp_command(devc, jazz_dma_bits[devc->dma8] | - (jazz_dma_bits[devc->dma16] << 4))) - return 0; - - if (!sb_dsp_command(devc, jazz_irq_bits[devc->irq] | - (jazz_irq_bits[irq] << 4))) - return 0; - - return 1; -} - -int probe_sbmpu(struct address_info *hw_config, struct module *owner) -{ - sb_devc *devc = last_devc; - int ret; - - if (last_devc == NULL) - return 0; - - last_devc = NULL; - - if (hw_config->io_base <= 0) - { - /* The real vibra16 is fine about this, but we have to go - wipe up after Cyrix again */ - - if(devc->model == MDL_SB16 && devc->minor >= 12) - { - unsigned char bits = sb_getmixer(devc, 0x84) & ~0x06; - sb_setmixer(devc, 0x84, bits | 0x02); /* Disable MPU */ - } - return 0; - } - -#if defined(CONFIG_SOUND_MPU401) - if (devc->model == MDL_ESS) - { - struct resource *ports; - ports = request_region(hw_config->io_base, 2, "mpu401"); - if (!ports) { - printk(KERN_ERR "sbmpu: I/O port conflict (%x)\n", hw_config->io_base); - return 0; - } - if (!ess_midi_init(devc, hw_config)) { - release_region(hw_config->io_base, 2); - return 0; - } - hw_config->name = "ESS1xxx MPU"; - devc->midi_irq_cookie = NULL; - if (!probe_mpu401(hw_config, ports)) { - release_region(hw_config->io_base, 2); - return 0; - } - attach_mpu401(hw_config, owner); - if (last_sb->irq == -hw_config->irq) - last_sb->midi_irq_cookie = - (void *)(long) hw_config->slots[1]; - return 1; - } -#endif - - switch (devc->model) - { - case MDL_SB16: - if (hw_config->io_base != 0x300 && hw_config->io_base != 0x330) - { - printk(KERN_ERR "SB16: Invalid MIDI port %x\n", hw_config->io_base); - return 0; - } - hw_config->name = "Sound Blaster 16"; - if (hw_config->irq < 3 || hw_config->irq == devc->irq) - hw_config->irq = -devc->irq; - if (devc->minor > 12) /* What is Vibra's version??? */ - sb16_set_mpu_port(devc, hw_config); - break; - - case MDL_JAZZ: - if (hw_config->irq < 3 || hw_config->irq == devc->irq) - hw_config->irq = -devc->irq; - if (!init_Jazz16_midi(devc, hw_config)) - return 0; - break; - - case MDL_YMPCI: - hw_config->name = "Yamaha PCI Legacy"; - printk("Yamaha PCI legacy UART401 check.\n"); - break; - default: - return 0; - } - - ret = probe_uart401(hw_config, owner); - if (ret) - last_sb->midi_irq_cookie=midi_devs[hw_config->slots[4]]->devc; - return ret; -} - -void unload_sbmpu(struct address_info *hw_config) -{ -#if defined(CONFIG_SOUND_MPU401) - if (!strcmp (hw_config->name, "ESS1xxx MPU")) { - unload_mpu401(hw_config); - return; - } -#endif - unload_uart401(hw_config); -} - -EXPORT_SYMBOL(sb_dsp_init); -EXPORT_SYMBOL(sb_dsp_detect); -EXPORT_SYMBOL(sb_dsp_unload); -EXPORT_SYMBOL(sb_be_quiet); -EXPORT_SYMBOL(probe_sbmpu); -EXPORT_SYMBOL(unload_sbmpu); -EXPORT_SYMBOL(smw_free); -MODULE_LICENSE("GPL"); diff --git a/sound/oss/sb_ess.c b/sound/oss/sb_ess.c deleted file mode 100644 index 57f7d25a2cd3..000000000000 --- a/sound/oss/sb_ess.c +++ /dev/null @@ -1,1822 +0,0 @@ -#undef FKS_LOGGING -#undef FKS_TEST - -/* - * tabs should be 4 spaces, in vi(m): set tabstop=4 - * - * TODO: consistency speed calculations!! - * cleanup! - * ????: Did I break MIDI support? - * - * History: - * - * Rolf Fokkens (Dec 20 1998): ES188x recording level support on a per - * fokkensr@vertis.nl input basis. - * (Dec 24 1998): Recognition of ES1788, ES1887, ES1888, - * ES1868, ES1869 and ES1878. Could be used for - * specific handling in the future. All except - * ES1887 and ES1888 and ES688 are handled like - * ES1688. - * (Dec 27 1998): RECLEV for all (?) ES1688+ chips. ES188x now - * have the "Dec 20" support + RECLEV - * (Jan 2 1999): Preparation for Full Duplex. This means - * Audio 2 is now used for playback when dma16 - * is specified. The next step would be to use - * Audio 1 and Audio 2 at the same time. - * (Jan 9 1999): Put all ESS stuff into sb_ess.[ch], this - * includes both the ESS stuff that has been in - * sb_*[ch] before I touched it and the ESS support - * I added later - * (Jan 23 1999): Full Duplex seems to work. I wrote a small - * test proggy which works OK. Haven't found - * any applications to test it though. So why did - * I bother to create it anyway?? :) Just for - * fun. - * (May 2 1999): I tried to be too smart by "introducing" - * ess_calc_best_speed (). The idea was that two - * dividers could be used to setup a samplerate, - * ess_calc_best_speed () would choose the best. - * This works for playback, but results in - * recording problems for high samplerates. I - * fixed this by removing ess_calc_best_speed () - * and just doing what the documentation says. - * Andy Sloane (Jun 4 1999): Stole some code from ALSA to fix the playback - * andy@guildsoftware.com speed on ES1869, ES1879, ES1887, and ES1888. - * 1879's were previously ignored by this driver; - * added (untested) support for those. - * Cvetan Ivanov (Oct 27 1999): Fixed ess_dsp_init to call ess_set_dma_hw for - * zezo@inet.bg _ALL_ ESS models, not only ES1887 - * - * This files contains ESS chip specifics. It's based on the existing ESS - * handling as it resided in sb_common.c, sb_mixer.c and sb_audio.c. This - * file adds features like: - * - Chip Identification (as shown in /proc/sound) - * - RECLEV support for ES1688 and later - * - 6 bits playback level support chips later than ES1688 - * - Recording level support on a per-device basis for ES1887 - * - Full-Duplex for ES1887 - * - * Full duplex is enabled by specifying dma16. While the normal dma must - * be one of 0, 1 or 3, dma16 can be one of 0, 1, 3 or 5. DMA 5 is a 16 bit - * DMA channel, while the others are 8 bit.. - * - * ESS detection isn't full proof (yet). If it fails an additional module - * parameter esstype can be specified to be one of the following: - * -1, 0, 688, 1688, 1868, 1869, 1788, 1887, 1888 - * -1 means: mimic 2.0 behaviour, - * 0 means: auto detect. - * others: explicitly specify chip - * -1 is default, cause auto detect still doesn't work. - */ - -/* - * About the documentation - * - * I don't know if the chips all are OK, but the documentation is buggy. 'cause - * I don't have all the cips myself, there's a lot I cannot verify. I'll try to - * keep track of my latest insights about his here. If you have additional info, - * please enlighten me (fokkensr@vertis.nl)! - * - * I had the impression that ES1688 also has 6 bit master volume control. The - * documentation about ES1888 (rev C, october '95) claims that ES1888 has - * the following features ES1688 doesn't have: - * - 6 bit master volume - * - Full Duplex - * So ES1688 apparently doesn't have 6 bit master volume control, but the - * ES1688 does have RECLEV control. Makes me wonder: does ES688 have it too? - * Without RECLEV ES688 won't be much fun I guess. - * - * From the ES1888 (rev C, october '95) documentation I got the impression - * that registers 0x68 to 0x6e don't exist which means: no recording volume - * controls. To my surprise the ES888 documentation (1/14/96) claims that - * ES888 does have these record mixer registers, but that ES1888 doesn't have - * 0x69 and 0x6b. So the rest should be there. - * - * I'm trying to get ES1887 Full Duplex. Audio 2 is playback only, while Audio 2 - * is both record and playback. I think I should use Audio 2 for all playback. - * - * The documentation is an adventure: it's close but not fully accurate. I - * found out that after a reset some registers are *NOT* reset, though the - * docs say the would be. Interesting ones are 0x7f, 0x7d and 0x7a. They are - * related to the Audio 2 channel. I also was surprised about the consequences - * of writing 0x00 to 0x7f (which should be done by reset): The ES1887 moves - * into ES1888 mode. This means that it claims IRQ 11, which happens to be my - * ISDN adapter. Needless to say it no longer worked. I now understand why - * after rebooting 0x7f already was 0x05, the value of my choice: the BIOS - * did it. - * - * Oh, and this is another trap: in ES1887 docs mixer register 0x70 is - * described as if it's exactly the same as register 0xa1. This is *NOT* true. - * The description of 0x70 in ES1869 docs is accurate however. - * Well, the assumption about ES1869 was wrong: register 0x70 is very much - * like register 0xa1, except that bit 7 is always 1, whatever you want - * it to be. - * - * When using audio 2 mixer register 0x72 seems te be meaningless. Only 0xa2 - * has effect. - * - * Software reset not being able to reset all registers is great! Especially - * the fact that register 0x78 isn't reset is great when you wanna change back - * to single dma operation (simplex): audio 2 is still operational, and uses - * the same dma as audio 1: your ess changes into a funny echo machine. - * - * Received the news that ES1688 is detected as a ES1788. Did some thinking: - * the ES1887 detection scheme suggests in step 2 to try if bit 3 of register - * 0x64 can be changed. This is inaccurate, first I inverted the * check: "If - * can be modified, it's a 1688", which lead to a correct detection - * of my ES1887. It resulted however in bad detection of 1688 (reported by mail) - * and 1868 (if no PnP detection first): they result in a 1788 being detected. - * I don't have docs on 1688, but I do have docs on 1868: The documentation is - * probably inaccurate in the fact that I should check bit 2, not bit 3. This - * is what I do now. - */ - -/* - * About recognition of ESS chips - * - * The distinction of ES688, ES1688, ES1788, ES1887 and ES1888 is described in - * a (preliminary ??) datasheet on ES1887. Its aim is to identify ES1887, but - * during detection the text claims that "this chip may be ..." when a step - * fails. This scheme is used to distinct between the above chips. - * It appears however that some PnP chips like ES1868 are recognized as ES1788 - * by the ES1887 detection scheme. These PnP chips can be detected in another - * way however: ES1868, ES1869 and ES1878 can be recognized (full proof I think) - * by repeatedly reading mixer register 0x40. This is done by ess_identify in - * sb_common.c. - * This results in the following detection steps: - * - distinct between ES688 and ES1688+ (as always done in this driver) - * if ES688 we're ready - * - try to detect ES1868, ES1869 or ES1878 - * if successful we're ready - * - try to detect ES1888, ES1887 or ES1788 - * if successful we're ready - * - Dunno. Must be 1688. Will do in general - * - * About RECLEV support: - * - * The existing ES1688 support didn't take care of the ES1688+ recording - * levels very well. Whenever a device was selected (recmask) for recording - * its recording level was loud, and it couldn't be changed. The fact that - * internal register 0xb4 could take care of RECLEV, didn't work meaning until - * its value was restored every time the chip was reset; this reset the - * value of 0xb4 too. I guess that's what 4front also had (have?) trouble with. - * - * About ES1887 support: - * - * The ES1887 has separate registers to control the recording levels, for all - * inputs. The ES1887 specific software makes these levels the same as their - * corresponding playback levels, unless recmask says they aren't recorded. In - * the latter case the recording volumes are 0. - * Now recording levels of inputs can be controlled, by changing the playback - * levels. Furthermore several devices can be recorded together (which is not - * possible with the ES1688). - * Besides the separate recording level control for each input, the common - * recording level can also be controlled by RECLEV as described above. - * - * Not only ES1887 have this recording mixer. I know the following from the - * documentation: - * ES688 no - * ES1688 no - * ES1868 no - * ES1869 yes - * ES1878 no - * ES1879 yes - * ES1888 no/yes Contradicting documentation; most recent: yes - * ES1946 yes This is a PCI chip; not handled by this driver - */ - -#include -#include -#include - -#include "sound_config.h" -#include "sb_mixer.h" -#include "sb.h" - -#include "sb_ess.h" - -#define ESSTYPE_LIKE20 -1 /* Mimic 2.0 behaviour */ -#define ESSTYPE_DETECT 0 /* Mimic 2.0 behaviour */ - -#define SUBMDL_ES1788 0x10 /* Subtype ES1788 for specific handling */ -#define SUBMDL_ES1868 0x11 /* Subtype ES1868 for specific handling */ -#define SUBMDL_ES1869 0x12 /* Subtype ES1869 for specific handling */ -#define SUBMDL_ES1878 0x13 /* Subtype ES1878 for specific handling */ -#define SUBMDL_ES1879 0x16 /* ES1879 was initially forgotten */ -#define SUBMDL_ES1887 0x14 /* Subtype ES1887 for specific handling */ -#define SUBMDL_ES1888 0x15 /* Subtype ES1888 for specific handling */ - -#define SB_CAP_ES18XX_RATE 0x100 - -#define ES1688_CLOCK1 795444 /* 128 - div */ -#define ES1688_CLOCK2 397722 /* 256 - div */ -#define ES18XX_CLOCK1 793800 /* 128 - div */ -#define ES18XX_CLOCK2 768000 /* 256 - div */ - -#ifdef FKS_LOGGING -static void ess_show_mixerregs (sb_devc *devc); -#endif -static int ess_read (sb_devc * devc, unsigned char reg); -static int ess_write (sb_devc * devc, unsigned char reg, unsigned char data); -static void ess_chgmixer - (sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val); - -/**************************************************************************** - * * - * ESS audio * - * * - ****************************************************************************/ - -struct ess_command {short cmd; short data;}; - -/* - * Commands for initializing Audio 1 for input (record) - */ -static struct ess_command ess_i08m[] = /* input 8 bit mono */ - { {0xb7, 0x51}, {0xb7, 0xd0}, {-1, 0} }; -static struct ess_command ess_i16m[] = /* input 16 bit mono */ - { {0xb7, 0x71}, {0xb7, 0xf4}, {-1, 0} }; -static struct ess_command ess_i08s[] = /* input 8 bit stereo */ - { {0xb7, 0x51}, {0xb7, 0x98}, {-1, 0} }; -static struct ess_command ess_i16s[] = /* input 16 bit stereo */ - { {0xb7, 0x71}, {0xb7, 0xbc}, {-1, 0} }; - -static struct ess_command *ess_inp_cmds[] = - { ess_i08m, ess_i16m, ess_i08s, ess_i16s }; - - -/* - * Commands for initializing Audio 1 for output (playback) - */ -static struct ess_command ess_o08m[] = /* output 8 bit mono */ - { {0xb6, 0x80}, {0xb7, 0x51}, {0xb7, 0xd0}, {-1, 0} }; -static struct ess_command ess_o16m[] = /* output 16 bit mono */ - { {0xb6, 0x00}, {0xb7, 0x71}, {0xb7, 0xf4}, {-1, 0} }; -static struct ess_command ess_o08s[] = /* output 8 bit stereo */ - { {0xb6, 0x80}, {0xb7, 0x51}, {0xb7, 0x98}, {-1, 0} }; -static struct ess_command ess_o16s[] = /* output 16 bit stereo */ - { {0xb6, 0x00}, {0xb7, 0x71}, {0xb7, 0xbc}, {-1, 0} }; - -static struct ess_command *ess_out_cmds[] = - { ess_o08m, ess_o16m, ess_o08s, ess_o16s }; - -static void ess_exec_commands - (sb_devc *devc, struct ess_command *cmdtab[]) -{ - struct ess_command *cmd; - - cmd = cmdtab [ ((devc->channels != 1) << 1) + (devc->bits != AFMT_U8) ]; - - while (cmd->cmd != -1) { - ess_write (devc, cmd->cmd, cmd->data); - cmd++; - } -} - -static void ess_change - (sb_devc *devc, unsigned int reg, unsigned int mask, unsigned int val) -{ - int value; - - value = ess_read (devc, reg); - value = (value & ~mask) | (val & mask); - ess_write (devc, reg, value); -} - -static void ess_set_output_parms - (int dev, unsigned long buf, int nr_bytes, int intrflag) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (devc->duplex) { - devc->trg_buf_16 = buf; - devc->trg_bytes_16 = nr_bytes; - devc->trg_intrflag_16 = intrflag; - devc->irq_mode_16 = IMODE_OUTPUT; - } else { - devc->trg_buf = buf; - devc->trg_bytes = nr_bytes; - devc->trg_intrflag = intrflag; - devc->irq_mode = IMODE_OUTPUT; - } -} - -static void ess_set_input_parms - (int dev, unsigned long buf, int count, int intrflag) -{ - sb_devc *devc = audio_devs[dev]->devc; - - devc->trg_buf = buf; - devc->trg_bytes = count; - devc->trg_intrflag = intrflag; - devc->irq_mode = IMODE_INPUT; -} - -static int ess_calc_div (int clock, int revert, int *speedp, int *diffp) -{ - int divider; - int speed, diff; - int retval; - - speed = *speedp; - divider = (clock + speed / 2) / speed; - retval = revert - divider; - if (retval > revert - 1) { - retval = revert - 1; - divider = revert - retval; - } - /* This line is suggested. Must be wrong I think - *speedp = (clock + divider / 2) / divider; - So I chose the next one */ - - *speedp = clock / divider; - diff = speed - *speedp; - if (diff < 0) diff =-diff; - *diffp = diff; - - return retval; -} - -static int ess_calc_best_speed - (int clock1, int rev1, int clock2, int rev2, int *divp, int *speedp) -{ - int speed1 = *speedp, speed2 = *speedp; - int div1, div2; - int diff1, diff2; - int retval; - - div1 = ess_calc_div (clock1, rev1, &speed1, &diff1); - div2 = ess_calc_div (clock2, rev2, &speed2, &diff2); - - if (diff1 < diff2) { - *divp = div1; - *speedp = speed1; - retval = 1; - } else { - /* *divp = div2; */ - *divp = 0x80 | div2; - *speedp = speed2; - retval = 2; - } - - return retval; -} - -/* - * Depending on the audiochannel ESS devices can - * have different clock settings. These are made consistent for duplex - * however. - * callers of ess_speed only do an audionum suggestion, which means - * input suggests 1, output suggests 2. This suggestion is only true - * however when doing duplex. - */ -static void ess_common_speed (sb_devc *devc, int *speedp, int *divp) -{ - int diff = 0, div; - - if (devc->duplex) { - /* - * The 0x80 is important for the first audio channel - */ - if (devc->submodel == SUBMDL_ES1888) { - div = 0x80 | ess_calc_div (795500, 256, speedp, &diff); - } else { - div = 0x80 | ess_calc_div (795500, 128, speedp, &diff); - } - } else if(devc->caps & SB_CAP_ES18XX_RATE) { - if (devc->submodel == SUBMDL_ES1888) { - ess_calc_best_speed(397700, 128, 795500, 256, - &div, speedp); - } else { - ess_calc_best_speed(ES18XX_CLOCK1, 128, ES18XX_CLOCK2, 256, - &div, speedp); - } - } else { - if (*speedp > 22000) { - div = 0x80 | ess_calc_div (ES1688_CLOCK1, 256, speedp, &diff); - } else { - div = 0x00 | ess_calc_div (ES1688_CLOCK2, 128, speedp, &diff); - } - } - *divp = div; -} - -static void ess_speed (sb_devc *devc, int audionum) -{ - int speed; - int div, div2; - - ess_common_speed (devc, &(devc->speed), &div); - -#ifdef FKS_REG_LOGGING -printk (KERN_INFO "FKS: ess_speed (%d) b speed = %d, div=%x\n", audionum, devc->speed, div); -#endif - - /* Set filter roll-off to 90% of speed/2 */ - speed = (devc->speed * 9) / 20; - - div2 = 256 - 7160000 / (speed * 82); - - if (!devc->duplex) audionum = 1; - - if (audionum == 1) { - /* Change behaviour of register A1 * - sb_chg_mixer(devc, 0x71, 0x20, 0x20) - * For ES1869 only??? */ - ess_write (devc, 0xa1, div); - ess_write (devc, 0xa2, div2); - } else { - ess_setmixer (devc, 0x70, div); - /* - * FKS: fascinating: 0x72 doesn't seem to work. - */ - ess_write (devc, 0xa2, div2); - ess_setmixer (devc, 0x72, div2); - } -} - -static int ess_audio_prepare_for_input(int dev, int bsize, int bcount) -{ - sb_devc *devc = audio_devs[dev]->devc; - - ess_speed(devc, 1); - - sb_dsp_command(devc, DSP_CMD_SPKOFF); - - ess_write (devc, 0xb8, 0x0e); /* Auto init DMA mode */ - ess_change (devc, 0xa8, 0x03, 3 - devc->channels); /* Mono/stereo */ - ess_write (devc, 0xb9, 2); /* Demand mode (4 bytes/DMA request) */ - - ess_exec_commands (devc, ess_inp_cmds); - - ess_change (devc, 0xb1, 0xf0, 0x50); - ess_change (devc, 0xb2, 0xf0, 0x50); - - devc->trigger_bits = 0; - return 0; -} - -static int ess_audio_prepare_for_output_audio1 (int dev, int bsize, int bcount) -{ - sb_devc *devc = audio_devs[dev]->devc; - - sb_dsp_reset(devc); - ess_speed(devc, 1); - ess_write (devc, 0xb8, 4); /* Auto init DMA mode */ - ess_change (devc, 0xa8, 0x03, 3 - devc->channels); /* Mono/stereo */ - ess_write (devc, 0xb9, 2); /* Demand mode (4 bytes/request) */ - - ess_exec_commands (devc, ess_out_cmds); - - ess_change (devc, 0xb1, 0xf0, 0x50); /* Enable DMA */ - ess_change (devc, 0xb2, 0xf0, 0x50); /* Enable IRQ */ - - sb_dsp_command(devc, DSP_CMD_SPKON); /* There be sound! */ - - devc->trigger_bits = 0; - return 0; -} - -static int ess_audio_prepare_for_output_audio2 (int dev, int bsize, int bcount) -{ - sb_devc *devc = audio_devs[dev]->devc; - unsigned char bits; - -/* FKS: qqq - sb_dsp_reset(devc); -*/ - - /* - * Auto-Initialize: - * DMA mode + demand mode (8 bytes/request, yes I want it all!) - * But leave 16-bit DMA bit untouched! - */ - ess_chgmixer (devc, 0x78, 0xd0, 0xd0); - - ess_speed(devc, 2); - - /* bits 4:3 on ES1887 represent recording source. Keep them! */ - bits = ess_getmixer (devc, 0x7a) & 0x18; - - /* Set stereo/mono */ - if (devc->channels != 1) bits |= 0x02; - - /* Init DACs; UNSIGNED mode for 8 bit; SIGNED mode for 16 bit */ - if (devc->bits != AFMT_U8) bits |= 0x05; /* 16 bit */ - - /* Enable DMA, IRQ will be shared (hopefully)*/ - bits |= 0x60; - - ess_setmixer (devc, 0x7a, bits); - - ess_mixer_reload (devc, SOUND_MIXER_PCM); /* There be sound! */ - - devc->trigger_bits = 0; - return 0; -} - -static int ess_audio_prepare_for_output(int dev, int bsize, int bcount) -{ - sb_devc *devc = audio_devs[dev]->devc; - -#ifdef FKS_REG_LOGGING -printk(KERN_INFO "ess_audio_prepare_for_output: dma_out=%d,dma_in=%d\n" -, audio_devs[dev]->dmap_out->dma, audio_devs[dev]->dmap_in->dma); -#endif - - if (devc->duplex) { - return ess_audio_prepare_for_output_audio2 (dev, bsize, bcount); - } else { - return ess_audio_prepare_for_output_audio1 (dev, bsize, bcount); - } -} - -static void ess_audio_halt_xfer(int dev) -{ - unsigned long flags; - sb_devc *devc = audio_devs[dev]->devc; - - spin_lock_irqsave(&devc->lock, flags); - sb_dsp_reset(devc); - spin_unlock_irqrestore(&devc->lock, flags); - - /* - * Audio 2 may still be operational! Creates awful sounds! - */ - if (devc->duplex) ess_chgmixer(devc, 0x78, 0x03, 0x00); -} - -static void ess_audio_start_input - (int dev, unsigned long buf, int nr_bytes, int intrflag) -{ - int count = nr_bytes; - sb_devc *devc = audio_devs[dev]->devc; - short c = -nr_bytes; - - /* - * Start a DMA input to the buffer pointed by dmaqtail - */ - - if (audio_devs[dev]->dmap_in->dma > 3) count >>= 1; - count--; - - devc->irq_mode = IMODE_INPUT; - - ess_write (devc, 0xa4, (unsigned char) ((unsigned short) c & 0xff)); - ess_write (devc, 0xa5, (unsigned char) (((unsigned short) c >> 8) & 0xff)); - - ess_change (devc, 0xb8, 0x0f, 0x0f); /* Go */ - devc->intr_active = 1; -} - -static void ess_audio_output_block_audio1 - (int dev, unsigned long buf, int nr_bytes, int intrflag) -{ - int count = nr_bytes; - sb_devc *devc = audio_devs[dev]->devc; - short c = -nr_bytes; - - if (audio_devs[dev]->dmap_out->dma > 3) - count >>= 1; - count--; - - devc->irq_mode = IMODE_OUTPUT; - - ess_write (devc, 0xa4, (unsigned char) ((unsigned short) c & 0xff)); - ess_write (devc, 0xa5, (unsigned char) (((unsigned short) c >> 8) & 0xff)); - - ess_change (devc, 0xb8, 0x05, 0x05); /* Go */ - devc->intr_active = 1; -} - -static void ess_audio_output_block_audio2 - (int dev, unsigned long buf, int nr_bytes, int intrflag) -{ - int count = nr_bytes; - sb_devc *devc = audio_devs[dev]->devc; - short c = -nr_bytes; - - if (audio_devs[dev]->dmap_out->dma > 3) count >>= 1; - count--; - - ess_setmixer (devc, 0x74, (unsigned char) ((unsigned short) c & 0xff)); - ess_setmixer (devc, 0x76, (unsigned char) (((unsigned short) c >> 8) & 0xff)); - ess_chgmixer (devc, 0x78, 0x03, 0x03); /* Go */ - - devc->irq_mode_16 = IMODE_OUTPUT; - devc->intr_active_16 = 1; -} - -static void ess_audio_output_block - (int dev, unsigned long buf, int nr_bytes, int intrflag) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (devc->duplex) { - ess_audio_output_block_audio2 (dev, buf, nr_bytes, intrflag); - } else { - ess_audio_output_block_audio1 (dev, buf, nr_bytes, intrflag); - } -} - -/* - * FKS: the if-statements for both bits and bits_16 are quite alike. - * Combine this... - */ -static void ess_audio_trigger(int dev, int bits) -{ - sb_devc *devc = audio_devs[dev]->devc; - - int bits_16 = bits & devc->irq_mode_16; - bits &= devc->irq_mode; - - if (!bits && !bits_16) { - /* FKS oh oh.... wrong?? for dma 16? */ - sb_dsp_command(devc, 0xd0); /* Halt DMA */ - } - - if (bits) { - switch (devc->irq_mode) - { - case IMODE_INPUT: - ess_audio_start_input(dev, devc->trg_buf, devc->trg_bytes, - devc->trg_intrflag); - break; - - case IMODE_OUTPUT: - ess_audio_output_block(dev, devc->trg_buf, devc->trg_bytes, - devc->trg_intrflag); - break; - } - } - - if (bits_16) { - switch (devc->irq_mode_16) { - case IMODE_INPUT: - ess_audio_start_input(dev, devc->trg_buf_16, devc->trg_bytes_16, - devc->trg_intrflag_16); - break; - - case IMODE_OUTPUT: - ess_audio_output_block(dev, devc->trg_buf_16, devc->trg_bytes_16, - devc->trg_intrflag_16); - break; - } - } - - devc->trigger_bits = bits | bits_16; -} - -static int ess_audio_set_speed(int dev, int speed) -{ - sb_devc *devc = audio_devs[dev]->devc; - int minspeed, maxspeed, dummydiv; - - if (speed > 0) { - minspeed = (devc->duplex ? 6215 : 5000 ); - maxspeed = (devc->duplex ? 44100 : 48000); - if (speed < minspeed) speed = minspeed; - if (speed > maxspeed) speed = maxspeed; - - ess_common_speed (devc, &speed, &dummydiv); - - devc->speed = speed; - } - return devc->speed; -} - -/* - * FKS: This is a one-on-one copy of sb1_audio_set_bits - */ -static unsigned int ess_audio_set_bits(int dev, unsigned int bits) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (bits != 0) { - if (bits == AFMT_U8 || bits == AFMT_S16_LE) { - devc->bits = bits; - } else { - devc->bits = AFMT_U8; - } - } - - return devc->bits; -} - -/* - * FKS: This is a one-on-one copy of sbpro_audio_set_channels - * (*) Modified it!! - */ -static short ess_audio_set_channels(int dev, short channels) -{ - sb_devc *devc = audio_devs[dev]->devc; - - if (channels == 1 || channels == 2) devc->channels = channels; - - return devc->channels; -} - -static struct audio_driver ess_audio_driver = /* ESS ES688/1688 */ -{ - .owner = THIS_MODULE, - .open = sb_audio_open, - .close = sb_audio_close, - .output_block = ess_set_output_parms, - .start_input = ess_set_input_parms, - .prepare_for_input = ess_audio_prepare_for_input, - .prepare_for_output = ess_audio_prepare_for_output, - .halt_io = ess_audio_halt_xfer, - .trigger = ess_audio_trigger, - .set_speed = ess_audio_set_speed, - .set_bits = ess_audio_set_bits, - .set_channels = ess_audio_set_channels -}; - -/* - * ess_audio_init must be called from sb_audio_init - */ -struct audio_driver *ess_audio_init - (sb_devc *devc, int *audio_flags, int *format_mask) -{ - *audio_flags = DMA_AUTOMODE; - *format_mask |= AFMT_S16_LE; - - if (devc->duplex) { - int tmp_dma; - /* - * sb_audio_init thinks dma8 is for playback and - * dma16 is for record. Not now! So swap them. - */ - tmp_dma = devc->dma16; - devc->dma16 = devc->dma8; - devc->dma8 = tmp_dma; - - *audio_flags |= DMA_DUPLEX; - } - - return &ess_audio_driver; -} - -/**************************************************************************** - * * - * ESS common * - * * - ****************************************************************************/ -static void ess_handle_channel - (char *channel, int dev, int intr_active, unsigned char flag, int irq_mode) -{ - if (!intr_active || !flag) return; -#ifdef FKS_REG_LOGGING -printk(KERN_INFO "FKS: ess_handle_channel %s irq_mode=%d\n", channel, irq_mode); -#endif - switch (irq_mode) { - case IMODE_OUTPUT: - DMAbuf_outputintr (dev, 1); - break; - - case IMODE_INPUT: - DMAbuf_inputintr (dev); - break; - - case IMODE_INIT: - break; - - default:; - /* printk(KERN_WARNING "ESS: Unexpected interrupt\n"); */ - } -} - -/* - * FKS: TODO!!! Finish this! - * - * I think midi stuff uses uart401, without interrupts. - * So IMODE_MIDI isn't a value for devc->irq_mode. - */ -void ess_intr (sb_devc *devc) -{ - int status; - unsigned char src; - - if (devc->submodel == SUBMDL_ES1887) { - src = ess_getmixer (devc, 0x7f) >> 4; - } else { - src = 0xff; - } - -#ifdef FKS_REG_LOGGING -printk(KERN_INFO "FKS: sbintr src=%x\n",(int)src); -#endif - ess_handle_channel - ( "Audio 1" - , devc->dev, devc->intr_active , src & 0x01, devc->irq_mode ); - ess_handle_channel - ( "Audio 2" - , devc->dev, devc->intr_active_16, src & 0x02, devc->irq_mode_16); - /* - * Acknowledge interrupts - */ - if (devc->submodel == SUBMDL_ES1887 && (src & 0x02)) { - ess_chgmixer (devc, 0x7a, 0x80, 0x00); - } - - if (src & 0x01) { - status = inb(DSP_DATA_AVAIL); - } -} - -static void ess_extended (sb_devc * devc) -{ - /* Enable extended mode */ - - sb_dsp_command(devc, 0xc6); -} - -static int ess_write (sb_devc * devc, unsigned char reg, unsigned char data) -{ -#ifdef FKS_REG_LOGGING -printk(KERN_INFO "FKS: write reg %x: %x\n", reg, data); -#endif - /* Write a byte to an extended mode register of ES1688 */ - - if (!sb_dsp_command(devc, reg)) - return 0; - - return sb_dsp_command(devc, data); -} - -static int ess_read (sb_devc * devc, unsigned char reg) -{ - /* Read a byte from an extended mode register of ES1688 */ - - /* Read register command */ - if (!sb_dsp_command(devc, 0xc0)) return -1; - - if (!sb_dsp_command(devc, reg )) return -1; - - return sb_dsp_get_byte(devc); -} - -int ess_dsp_reset(sb_devc * devc) -{ - int loopc; - -#ifdef FKS_REG_LOGGING -printk(KERN_INFO "FKS: ess_dsp_reset 1\n"); -ess_show_mixerregs (devc); -#endif - - outb(3, DSP_RESET); /* Reset FIFO too */ - - udelay(10); - outb(0, DSP_RESET); - udelay(30); - - for (loopc = 0; loopc < 1000 && !(inb(DSP_DATA_AVAIL) & 0x80); loopc++); - - if (inb(DSP_READ) != 0xAA) { - DDB(printk("sb: No response to RESET\n")); - return 0; /* Sorry */ - } - ess_extended (devc); - -#ifdef FKS_LOGGING -printk(KERN_INFO "FKS: dsp_reset 2\n"); -ess_show_mixerregs (devc); -#endif - - return 1; -} - -static int ess_irq_bits (int irq) -{ - switch (irq) { - case 2: - case 9: - return 0; - - case 5: - return 1; - - case 7: - return 2; - - case 10: - return 3; - - default: - printk(KERN_ERR "ESS1688: Invalid IRQ %d\n", irq); - return -1; - } -} - -/* - * Set IRQ configuration register for all ESS models - */ -static int ess_common_set_irq_hw (sb_devc * devc) -{ - int irq_bits; - - if ((irq_bits = ess_irq_bits (devc->irq)) == -1) return 0; - - if (!ess_write (devc, 0xb1, 0x50 | (irq_bits << 2))) { - printk(KERN_ERR "ES1688: Failed to write to IRQ config register\n"); - return 0; - } - return 1; -} - -/* - * I wanna use modern ES1887 mixer irq handling. Funny is the - * fact that my BIOS wants the same. But suppose someone's BIOS - * doesn't do this! - * This is independent of duplex. If there's a 1887 this will - * prevent it from going into 1888 mode. - */ -static void ess_es1887_set_irq_hw (sb_devc * devc) -{ - int irq_bits; - - if ((irq_bits = ess_irq_bits (devc->irq)) == -1) return; - - ess_chgmixer (devc, 0x7f, 0x0f, 0x01 | ((irq_bits + 1) << 1)); -} - -static int ess_set_irq_hw (sb_devc * devc) -{ - if (devc->submodel == SUBMDL_ES1887) ess_es1887_set_irq_hw (devc); - - return ess_common_set_irq_hw (devc); -} - -#ifdef FKS_TEST - -/* - * FKS_test: - * for ES1887: 00, 18, non wr bits: 0001 1000 - * for ES1868: 00, b8, non wr bits: 1011 1000 - * for ES1888: 00, f8, non wr bits: 1111 1000 - * for ES1688: 00, f8, non wr bits: 1111 1000 - * + ES968 - */ - -static void FKS_test (sb_devc * devc) -{ - int val1, val2; - val1 = ess_getmixer (devc, 0x64); - ess_setmixer (devc, 0x64, ~val1); - val2 = ess_getmixer (devc, 0x64) ^ ~val1; - ess_setmixer (devc, 0x64, val1); - val1 ^= ess_getmixer (devc, 0x64); -printk (KERN_INFO "FKS: FKS_test %02x, %02x\n", (val1 & 0x0ff), (val2 & 0x0ff)); -}; -#endif - -static unsigned int ess_identify (sb_devc * devc) -{ - unsigned int val; - unsigned long flags; - - spin_lock_irqsave(&devc->lock, flags); - outb(((unsigned char) (0x40 & 0xff)), MIXER_ADDR); - - udelay(20); - val = inb(MIXER_DATA) << 8; - udelay(20); - val |= inb(MIXER_DATA); - udelay(20); - spin_unlock_irqrestore(&devc->lock, flags); - - return val; -} - -/* - * ESS technology describes a detection scheme in their docs. It involves - * fiddling with the bits in certain mixer registers. ess_probe is supposed - * to help. - * - * FKS: tracing shows ess_probe writes wrong value to 0x64. Bit 3 reads 1, but - * should be written 0 only. Check this. - */ -static int ess_probe (sb_devc * devc, int reg, int xorval) -{ - int val1, val2, val3; - - val1 = ess_getmixer (devc, reg); - val2 = val1 ^ xorval; - ess_setmixer (devc, reg, val2); - val3 = ess_getmixer (devc, reg); - ess_setmixer (devc, reg, val1); - - return (val2 == val3); -} - -int ess_init(sb_devc * devc, struct address_info *hw_config) -{ - unsigned char cfg; - int ess_major = 0, ess_minor = 0; - int i; - static char name[100], modelname[10]; - - /* - * Try to detect ESS chips. - */ - - sb_dsp_command(devc, 0xe7); /* Return identification */ - - for (i = 1000; i; i--) { - if (inb(DSP_DATA_AVAIL) & 0x80) { - if (ess_major == 0) { - ess_major = inb(DSP_READ); - } else { - ess_minor = inb(DSP_READ); - break; - } - } - } - - if (ess_major == 0) return 0; - - if (ess_major == 0x48 && (ess_minor & 0xf0) == 0x80) { - sprintf(name, "ESS ES488 AudioDrive (rev %d)", - ess_minor & 0x0f); - hw_config->name = name; - devc->model = MDL_SBPRO; - return 1; - } - - /* - * This the detection heuristic of ESS technology, though somewhat - * changed to actually make it work. - * This results in the following detection steps: - * - distinct between ES688 and ES1688+ (as always done in this driver) - * if ES688 we're ready - * - try to detect ES1868, ES1869 or ES1878 (ess_identify) - * if successful we're ready - * - try to detect ES1888, ES1887 or ES1788 (aim: detect ES1887) - * if successful we're ready - * - Dunno. Must be 1688. Will do in general - * - * This is the most BETA part of the software: Will the detection - * always work? - */ - devc->model = MDL_ESS; - devc->submodel = ess_minor & 0x0f; - - if (ess_major == 0x68 && (ess_minor & 0xf0) == 0x80) { - char *chip = NULL; - int submodel = -1; - - switch (devc->sbmo.esstype) { - case ESSTYPE_DETECT: - case ESSTYPE_LIKE20: - break; - case 688: - submodel = 0x00; - break; - case 1688: - submodel = 0x08; - break; - case 1868: - submodel = SUBMDL_ES1868; - break; - case 1869: - submodel = SUBMDL_ES1869; - break; - case 1788: - submodel = SUBMDL_ES1788; - break; - case 1878: - submodel = SUBMDL_ES1878; - break; - case 1879: - submodel = SUBMDL_ES1879; - break; - case 1887: - submodel = SUBMDL_ES1887; - break; - case 1888: - submodel = SUBMDL_ES1888; - break; - default: - printk (KERN_ERR "Invalid esstype=%d specified\n", devc->sbmo.esstype); - return 0; - } - if (submodel != -1) { - devc->submodel = submodel; - sprintf (modelname, "ES%d", devc->sbmo.esstype); - chip = modelname; - } - if (chip == NULL && (ess_minor & 0x0f) < 8) { - chip = "ES688"; - } -#ifdef FKS_TEST -FKS_test (devc); -#endif - /* - * If Nothing detected yet, and we want 2.0 behaviour... - * Then let's assume it's ES1688. - */ - if (chip == NULL && devc->sbmo.esstype == ESSTYPE_LIKE20) { - chip = "ES1688"; - } - - if (chip == NULL) { - int type; - - type = ess_identify (devc); - - switch (type) { - case 0x1868: - chip = "ES1868"; - devc->submodel = SUBMDL_ES1868; - break; - case 0x1869: - chip = "ES1869"; - devc->submodel = SUBMDL_ES1869; - break; - case 0x1878: - chip = "ES1878"; - devc->submodel = SUBMDL_ES1878; - break; - case 0x1879: - chip = "ES1879"; - devc->submodel = SUBMDL_ES1879; - break; - default: - if ((type & 0x00ff) != ((type >> 8) & 0x00ff)) { - printk ("ess_init: Unrecognized %04x\n", type); - } - } - } -#if 0 - /* - * this one failed: - * the probing of bit 4 is another thought: from ES1788 and up, all - * chips seem to have hardware volume control. Bit 4 is readonly to - * check if a hardware volume interrupt has fired. - * Cause ES688/ES1688 don't have this feature, bit 4 might be writeable - * for these chips. - */ - if (chip == NULL && !ess_probe(devc, 0x64, (1 << 4))) { -#endif - /* - * the probing of bit 2 is my idea. The ES1887 docs want me to probe - * bit 3. This results in ES1688 being detected as ES1788. - * Bit 2 is for "Enable HWV IRQE", but as ES(1)688 chips don't have - * HardWare Volume, I think they don't have this IRQE. - */ - if (chip == NULL && ess_probe(devc, 0x64, (1 << 2))) { - if (ess_probe (devc, 0x70, 0x7f)) { - if (ess_probe (devc, 0x64, (1 << 5))) { - chip = "ES1887"; - devc->submodel = SUBMDL_ES1887; - } else { - chip = "ES1888"; - devc->submodel = SUBMDL_ES1888; - } - } else { - chip = "ES1788"; - devc->submodel = SUBMDL_ES1788; - } - } - if (chip == NULL) { - chip = "ES1688"; - } - - printk(KERN_INFO "ESS chip %s %s%s\n", chip, - (devc->sbmo.esstype == ESSTYPE_DETECT || - devc->sbmo.esstype == ESSTYPE_LIKE20) ? - "detected" : "specified", - devc->sbmo.esstype == ESSTYPE_LIKE20 ? - " (kernel 2.0 compatible)" : ""); - - sprintf(name,"ESS %s AudioDrive (rev %d)", chip, ess_minor & 0x0f); - } else { - strcpy(name, "Jazz16"); - } - - /* AAS: info stolen from ALSA: these boards have different clocks */ - switch(devc->submodel) { -/* APPARENTLY NOT 1869 AND 1887 - case SUBMDL_ES1869: - case SUBMDL_ES1887: -*/ - case SUBMDL_ES1888: - devc->caps |= SB_CAP_ES18XX_RATE; - break; - } - - hw_config->name = name; - /* FKS: sb_dsp_reset to enable extended mode???? */ - sb_dsp_reset(devc); /* Turn on extended mode */ - - /* - * Enable joystick and OPL3 - */ - cfg = ess_getmixer (devc, 0x40); - ess_setmixer (devc, 0x40, cfg | 0x03); - if (devc->submodel >= 8) { /* ES1688 */ - devc->caps |= SB_NO_MIDI; /* ES1688 uses MPU401 MIDI mode */ - } - sb_dsp_reset (devc); - - /* - * This is important! If it's not done, the IRQ probe in sb_dsp_init - * may fail. - */ - return ess_set_irq_hw (devc); -} - -static int ess_set_dma_hw(sb_devc * devc) -{ - unsigned char cfg, dma_bits = 0, dma16_bits; - int dma; - -#ifdef FKS_LOGGING -printk(KERN_INFO "ess_set_dma_hw: dma8=%d,dma16=%d,dup=%d\n" -, devc->dma8, devc->dma16, devc->duplex); -#endif - - /* - * FKS: It seems as if this duplex flag isn't set yet. Check it. - */ - dma = devc->dma8; - - if (dma > 3 || dma < 0 || dma == 2) { - dma_bits = 0; - printk(KERN_ERR "ESS1688: Invalid DMA8 %d\n", dma); - return 0; - } else { - /* Extended mode DMA enable */ - cfg = 0x50; - - if (dma == 3) { - dma_bits = 3; - } else { - dma_bits = dma + 1; - } - } - - if (!ess_write (devc, 0xb2, cfg | (dma_bits << 2))) { - printk(KERN_ERR "ESS1688: Failed to write to DMA config register\n"); - return 0; - } - - if (devc->duplex) { - dma = devc->dma16; - dma16_bits = 0; - - if (dma >= 0) { - switch (dma) { - case 0: - dma_bits = 0x04; - break; - case 1: - dma_bits = 0x05; - break; - case 3: - dma_bits = 0x06; - break; - case 5: - dma_bits = 0x07; - dma16_bits = 0x20; - break; - default: - printk(KERN_ERR "ESS1887: Invalid DMA16 %d\n", dma); - return 0; - } - ess_chgmixer (devc, 0x78, 0x20, dma16_bits); - ess_chgmixer (devc, 0x7d, 0x07, dma_bits); - } - } - return 1; -} - -/* - * This one is called from sb_dsp_init. - * - * Return values: - * 0: Failed - * 1: Succeeded or doesn't apply (not SUBMDL_ES1887) - */ -int ess_dsp_init (sb_devc *devc, struct address_info *hw_config) -{ - /* - * Caller also checks this, but anyway - */ - if (devc->model != MDL_ESS) { - printk (KERN_INFO "ess_dsp_init for non ESS chip\n"); - return 1; - } - /* - * This for ES1887 to run Full Duplex. Actually ES1888 - * is allowed to do so too. I have no idea yet if this - * will work for ES1888 however. - * - * For SB16 having both dma8 and dma16 means enable - * Full Duplex. Let's try this for ES1887 too - * - */ - if (devc->submodel == SUBMDL_ES1887) { - if (hw_config->dma2 != -1) { - devc->dma16 = hw_config->dma2; - } - /* - * devc->duplex initialization is put here, cause - * ess_set_dma_hw needs it. - */ - if (devc->dma8 != devc->dma16 && devc->dma16 != -1) { - devc->duplex = 1; - } - } - if (!ess_set_dma_hw (devc)) { - free_irq(devc->irq, devc); - return 0; - } - return 1; -} - -/**************************************************************************** - * * - * ESS mixer * - * * - ****************************************************************************/ - -#define ES688_RECORDING_DEVICES \ - ( SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD ) -#define ES688_MIXER_DEVICES \ - ( SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE \ - | SOUND_MASK_MIC | SOUND_MASK_CD | SOUND_MASK_VOLUME \ - | SOUND_MASK_LINE2 | SOUND_MASK_SPEAKER ) - -#define ES1688_RECORDING_DEVICES \ - ( ES688_RECORDING_DEVICES ) -#define ES1688_MIXER_DEVICES \ - ( ES688_MIXER_DEVICES | SOUND_MASK_RECLEV ) - -#define ES1887_RECORDING_DEVICES \ - ( ES1688_RECORDING_DEVICES | SOUND_MASK_LINE2 | SOUND_MASK_SYNTH) -#define ES1887_MIXER_DEVICES \ - ( ES1688_MIXER_DEVICES ) - -/* - * Mixer registers of ES1887 - * - * These registers specifically take care of recording levels. To make the - * mapping from playback devices to recording devices every recording - * devices = playback device + ES_REC_MIXER_RECDIFF - */ -#define ES_REC_MIXER_RECBASE (SOUND_MIXER_LINE3 + 1) -#define ES_REC_MIXER_RECDIFF (ES_REC_MIXER_RECBASE - SOUND_MIXER_SYNTH) - -#define ES_REC_MIXER_RECSYNTH (SOUND_MIXER_SYNTH + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECPCM (SOUND_MIXER_PCM + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECSPEAKER (SOUND_MIXER_SPEAKER + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECLINE (SOUND_MIXER_LINE + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECMIC (SOUND_MIXER_MIC + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECCD (SOUND_MIXER_CD + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECIMIX (SOUND_MIXER_IMIX + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECALTPCM (SOUND_MIXER_ALTPCM + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECRECLEV (SOUND_MIXER_RECLEV + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECIGAIN (SOUND_MIXER_IGAIN + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECOGAIN (SOUND_MIXER_OGAIN + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECLINE1 (SOUND_MIXER_LINE1 + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECLINE2 (SOUND_MIXER_LINE2 + ES_REC_MIXER_RECDIFF) -#define ES_REC_MIXER_RECLINE3 (SOUND_MIXER_LINE3 + ES_REC_MIXER_RECDIFF) - -static mixer_tab es688_mix = { -MIX_ENT(SOUND_MIXER_VOLUME, 0x32, 7, 4, 0x32, 3, 4), -MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4), -MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4), -MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4), -MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4), -MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4), -MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_RECLEV, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4), -MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0) -}; - -/* - * The ES1688 specifics... hopefully correct... - * - 6 bit master volume - * I was wrong, ES1888 docs say ES1688 didn't have it. - * - RECLEV control - * These may apply to ES688 too. I have no idea. - */ -static mixer_tab es1688_mix = { -MIX_ENT(SOUND_MIXER_VOLUME, 0x32, 7, 4, 0x32, 3, 4), -MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4), -MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4), -MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4), -MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4), -MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4), -MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4), -MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4), -MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0) -}; - -static mixer_tab es1688later_mix = { -MIX_ENT(SOUND_MIXER_VOLUME, 0x60, 5, 6, 0x62, 5, 6), -MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4), -MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4), -MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4), -MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4), -MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4), -MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4), -MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4), -MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0) -}; - -/* - * This one is for all ESS chips with a record mixer. - * It's not used (yet) however - */ -static mixer_tab es_rec_mix = { -MIX_ENT(SOUND_MIXER_VOLUME, 0x60, 5, 6, 0x62, 5, 6), -MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4), -MIX_ENT(SOUND_MIXER_PCM, 0x14, 7, 4, 0x14, 3, 4), -MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4), -MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4), -MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4), -MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4), -MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4), -MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECSYNTH, 0x6b, 7, 4, 0x6b, 3, 4), -MIX_ENT(ES_REC_MIXER_RECPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECSPEAKER, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECLINE, 0x6e, 7, 4, 0x6e, 3, 4), -MIX_ENT(ES_REC_MIXER_RECMIC, 0x68, 7, 4, 0x68, 3, 4), -MIX_ENT(ES_REC_MIXER_RECCD, 0x6a, 7, 4, 0x6a, 3, 4), -MIX_ENT(ES_REC_MIXER_RECIMIX, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECALTPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECRECLEV, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECIGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECOGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECLINE1, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECLINE2, 0x6c, 7, 4, 0x6c, 3, 4), -MIX_ENT(ES_REC_MIXER_RECLINE3, 0x00, 0, 0, 0x00, 0, 0) -}; - -/* - * This one is for ES1887. It's little different from es_rec_mix: it - * has 0x7c for PCM playback level. This is because ES1887 uses - * Audio 2 for playback. - */ -static mixer_tab es1887_mix = { -MIX_ENT(SOUND_MIXER_VOLUME, 0x60, 5, 6, 0x62, 5, 6), -MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_SYNTH, 0x36, 7, 4, 0x36, 3, 4), -MIX_ENT(SOUND_MIXER_PCM, 0x7c, 7, 4, 0x7c, 3, 4), -MIX_ENT(SOUND_MIXER_SPEAKER, 0x3c, 2, 3, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE, 0x3e, 7, 4, 0x3e, 3, 4), -MIX_ENT(SOUND_MIXER_MIC, 0x1a, 7, 4, 0x1a, 3, 4), -MIX_ENT(SOUND_MIXER_CD, 0x38, 7, 4, 0x38, 3, 4), -MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_RECLEV, 0xb4, 7, 4, 0xb4, 3, 4), -MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE1, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE2, 0x3a, 7, 4, 0x3a, 3, 4), -MIX_ENT(SOUND_MIXER_LINE3, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECSYNTH, 0x6b, 7, 4, 0x6b, 3, 4), -MIX_ENT(ES_REC_MIXER_RECPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECSPEAKER, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECLINE, 0x6e, 7, 4, 0x6e, 3, 4), -MIX_ENT(ES_REC_MIXER_RECMIC, 0x68, 7, 4, 0x68, 3, 4), -MIX_ENT(ES_REC_MIXER_RECCD, 0x6a, 7, 4, 0x6a, 3, 4), -MIX_ENT(ES_REC_MIXER_RECIMIX, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECALTPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECRECLEV, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECIGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECOGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECLINE1, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(ES_REC_MIXER_RECLINE2, 0x6c, 7, 4, 0x6c, 3, 4), -MIX_ENT(ES_REC_MIXER_RECLINE3, 0x00, 0, 0, 0x00, 0, 0) -}; - -static int ess_has_rec_mixer (int submodel) -{ - switch (submodel) { - case SUBMDL_ES1887: - return 1; - default: - return 0; - } -}; - -#ifdef FKS_LOGGING -static int ess_mixer_mon_regs[] - = { 0x70, 0x71, 0x72, 0x74, 0x76, 0x78, 0x7a, 0x7c, 0x7d, 0x7f - , 0xa1, 0xa2, 0xa4, 0xa5, 0xa8, 0xa9 - , 0xb1, 0xb2, 0xb4, 0xb5, 0xb6, 0xb7, 0xb9 - , 0x00}; - -static void ess_show_mixerregs (sb_devc *devc) -{ - int *mp = ess_mixer_mon_regs; - -return; - - while (*mp != 0) { - printk (KERN_INFO "res (%x)=%x\n", *mp, (int)(ess_getmixer (devc, *mp))); - mp++; - } -} -#endif - -void ess_setmixer (sb_devc * devc, unsigned int port, unsigned int value) -{ - unsigned long flags; - -#ifdef FKS_LOGGING -printk(KERN_INFO "FKS: write mixer %x: %x\n", port, value); -#endif - - spin_lock_irqsave(&devc->lock, flags); - if (port >= 0xa0) { - ess_write (devc, port, value); - } else { - outb(((unsigned char) (port & 0xff)), MIXER_ADDR); - - udelay(20); - outb(((unsigned char) (value & 0xff)), MIXER_DATA); - udelay(20); - } - spin_unlock_irqrestore(&devc->lock, flags); -} - -unsigned int ess_getmixer (sb_devc * devc, unsigned int port) -{ - unsigned int val; - unsigned long flags; - - spin_lock_irqsave(&devc->lock, flags); - - if (port >= 0xa0) { - val = ess_read (devc, port); - } else { - outb(((unsigned char) (port & 0xff)), MIXER_ADDR); - - udelay(20); - val = inb(MIXER_DATA); - udelay(20); - } - spin_unlock_irqrestore(&devc->lock, flags); - - return val; -} - -static void ess_chgmixer - (sb_devc * devc, unsigned int reg, unsigned int mask, unsigned int val) -{ - int value; - - value = ess_getmixer (devc, reg); - value = (value & ~mask) | (val & mask); - ess_setmixer (devc, reg, value); -} - -/* - * ess_mixer_init must be called from sb_mixer_init - */ -void ess_mixer_init (sb_devc * devc) -{ - devc->mixer_caps = SOUND_CAP_EXCL_INPUT; - - /* - * Take care of ES1887 specifics... - */ - switch (devc->submodel) { - case SUBMDL_ES1887: - devc->supported_devices = ES1887_MIXER_DEVICES; - devc->supported_rec_devices = ES1887_RECORDING_DEVICES; -#ifdef FKS_LOGGING -printk (KERN_INFO "FKS: ess_mixer_init dup = %d\n", devc->duplex); -#endif - if (devc->duplex) { - devc->iomap = &es1887_mix; - devc->iomap_sz = ARRAY_SIZE(es1887_mix); - } else { - devc->iomap = &es_rec_mix; - devc->iomap_sz = ARRAY_SIZE(es_rec_mix); - } - break; - default: - if (devc->submodel < 8) { - devc->supported_devices = ES688_MIXER_DEVICES; - devc->supported_rec_devices = ES688_RECORDING_DEVICES; - devc->iomap = &es688_mix; - devc->iomap_sz = ARRAY_SIZE(es688_mix); - } else { - /* - * es1688 has 4 bits master vol. - * later chips have 6 bits (?) - */ - devc->supported_devices = ES1688_MIXER_DEVICES; - devc->supported_rec_devices = ES1688_RECORDING_DEVICES; - if (devc->submodel < 0x10) { - devc->iomap = &es1688_mix; - devc->iomap_sz = ARRAY_SIZE(es688_mix); - } else { - devc->iomap = &es1688later_mix; - devc->iomap_sz = ARRAY_SIZE(es1688later_mix); - } - } - } -} - -/* - * Changing playback levels at an ESS chip with record mixer means having to - * take care of recording levels of recorded inputs (devc->recmask) too! - */ -int ess_mixer_set(sb_devc *devc, int dev, int left, int right) -{ - if (ess_has_rec_mixer (devc->submodel) && (devc->recmask & (1 << dev))) { - sb_common_mixer_set (devc, dev + ES_REC_MIXER_RECDIFF, left, right); - } - return sb_common_mixer_set (devc, dev, left, right); -} - -/* - * After a sb_dsp_reset extended register 0xb4 (RECLEV) is reset too. After - * sb_dsp_reset RECLEV has to be restored. This is where ess_mixer_reload - * helps. - */ -void ess_mixer_reload (sb_devc *devc, int dev) -{ - int left, right, value; - - value = devc->levels[dev]; - left = value & 0x000000ff; - right = (value & 0x0000ff00) >> 8; - - sb_common_mixer_set(devc, dev, left, right); -} - -static int es_rec_set_recmask(sb_devc * devc, int mask) -{ - int i, i_mask, cur_mask, diff_mask; - int value, left, right; - -#ifdef FKS_LOGGING -printk (KERN_INFO "FKS: es_rec_set_recmask mask = %x\n", mask); -#endif - /* - * Changing the recmask on an ESS chip with recording mixer means: - * (1) Find the differences - * (2) For "turned-on" inputs: make the recording level the playback level - * (3) For "turned-off" inputs: make the recording level zero - */ - cur_mask = devc->recmask; - diff_mask = (cur_mask ^ mask); - - for (i = 0; i < 32; i++) { - i_mask = (1 << i); - if (diff_mask & i_mask) { /* Difference? (1) */ - if (mask & i_mask) { /* Turn it on (2) */ - value = devc->levels[i]; - left = value & 0x000000ff; - right = (value & 0x0000ff00) >> 8; - } else { /* Turn it off (3) */ - left = 0; - right = 0; - } - sb_common_mixer_set(devc, i + ES_REC_MIXER_RECDIFF, left, right); - } - } - return mask; -} - -int ess_set_recmask(sb_devc * devc, int *mask) -{ - /* This applies to ESS chips with record mixers only! */ - - if (ess_has_rec_mixer (devc->submodel)) { - *mask = es_rec_set_recmask (devc, *mask); - return 1; /* Applied */ - } else { - return 0; /* Not applied */ - } -} - -/* - * ess_mixer_reset must be called from sb_mixer_reset - */ -int ess_mixer_reset (sb_devc * devc) -{ - /* - * Separate actions for ESS chips with a record mixer: - */ - if (ess_has_rec_mixer (devc->submodel)) { - switch (devc->submodel) { - case SUBMDL_ES1887: - /* - * Separate actions for ES1887: - * Change registers 7a and 1c to make the record mixer the - * actual recording source. - */ - ess_chgmixer(devc, 0x7a, 0x18, 0x08); - ess_chgmixer(devc, 0x1c, 0x07, 0x07); - break; - } - /* - * Call set_recmask for proper initialization - */ - devc->recmask = devc->supported_rec_devices; - es_rec_set_recmask(devc, 0); - devc->recmask = 0; - - return 1; /* We took care of recmask. */ - } else { - return 0; /* We didn't take care; caller do it */ - } -} - -/**************************************************************************** - * * - * ESS midi * - * * - ****************************************************************************/ - -/* - * FKS: IRQ may be shared. Hm. And if so? Then What? - */ -int ess_midi_init(sb_devc * devc, struct address_info *hw_config) -{ - unsigned char cfg, tmp; - - cfg = ess_getmixer (devc, 0x40) & 0x03; - - if (devc->submodel < 8) { - ess_setmixer (devc, 0x40, cfg | 0x03); /* Enable OPL3 & joystick */ - return 0; /* ES688 doesn't support MPU401 mode */ - } - tmp = (hw_config->io_base & 0x0f0) >> 4; - - if (tmp > 3) { - ess_setmixer (devc, 0x40, cfg); - return 0; - } - cfg |= tmp << 3; - - tmp = 1; /* MPU enabled without interrupts */ - - /* May be shared: if so the value is -ve */ - - switch (abs(hw_config->irq)) { - case 9: - tmp = 0x4; - break; - case 5: - tmp = 0x5; - break; - case 7: - tmp = 0x6; - break; - case 10: - tmp = 0x7; - break; - default: - return 0; - } - - cfg |= tmp << 5; - ess_setmixer (devc, 0x40, cfg | 0x03); - - return 1; -} - diff --git a/sound/oss/sb_ess.h b/sound/oss/sb_ess.h deleted file mode 100644 index 38aa072e01f2..000000000000 --- a/sound/oss/sb_ess.h +++ /dev/null @@ -1,34 +0,0 @@ -/* - * Created: 9-Jan-1999 Rolf Fokkens - */ - -extern void ess_intr - (sb_devc *devc); -extern int ess_dsp_init - (sb_devc *devc, struct address_info *hw_config); - -extern struct audio_driver *ess_audio_init - (sb_devc *devc, int *audio_flags, int *format_mask); -extern int ess_midi_init - (sb_devc *devc, struct address_info *hw_config); -extern void ess_mixer_init - (sb_devc *devc); - -extern int ess_init - (sb_devc *devc, struct address_info *hw_config); -extern int ess_dsp_reset - (sb_devc *devc); - -extern void ess_setmixer - (sb_devc *devc, unsigned int port, unsigned int value); -extern unsigned int ess_getmixer - (sb_devc *devc, unsigned int port); -extern int ess_mixer_set - (sb_devc *devc, int dev, int left, int right); -extern int ess_mixer_reset - (sb_devc *devc); -extern void ess_mixer_reload - (sb_devc * devc, int dev); -extern int ess_set_recmask - (sb_devc *devc, int *mask); - diff --git a/sound/oss/sb_midi.c b/sound/oss/sb_midi.c deleted file mode 100644 index 551ee7557b4e..000000000000 --- a/sound/oss/sb_midi.c +++ /dev/null @@ -1,206 +0,0 @@ -/* - * sound/oss/sb_midi.c - * - * The low level driver for the Sound Blaster DS chips. - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ - -#include -#include - -#include "sound_config.h" - -#include "sb.h" -#undef SB_TEST_IRQ - -/* - * The DSP channel can be used either for input or output. Variable - * 'sb_irq_mode' will be set when the program calls read or write first time - * after open. Current version doesn't support mode changes without closing - * and reopening the device. Support for this feature may be implemented in a - * future version of this driver. - */ - - -static int sb_midi_open(int dev, int mode, - void (*input) (int dev, unsigned char data), - void (*output) (int dev) -) -{ - sb_devc *devc = midi_devs[dev]->devc; - unsigned long flags; - - if (devc == NULL) - return -ENXIO; - - spin_lock_irqsave(&devc->lock, flags); - if (devc->opened) - { - spin_unlock_irqrestore(&devc->lock, flags); - return -EBUSY; - } - devc->opened = 1; - spin_unlock_irqrestore(&devc->lock, flags); - - devc->irq_mode = IMODE_MIDI; - devc->midi_broken = 0; - - sb_dsp_reset(devc); - - if (!sb_dsp_command(devc, 0x35)) /* Start MIDI UART mode */ - { - devc->opened = 0; - return -EIO; - } - devc->intr_active = 1; - - if (mode & OPEN_READ) - { - devc->input_opened = 1; - devc->midi_input_intr = input; - } - return 0; -} - -static void sb_midi_close(int dev) -{ - sb_devc *devc = midi_devs[dev]->devc; - unsigned long flags; - - if (devc == NULL) - return; - - spin_lock_irqsave(&devc->lock, flags); - sb_dsp_reset(devc); - devc->intr_active = 0; - devc->input_opened = 0; - devc->opened = 0; - spin_unlock_irqrestore(&devc->lock, flags); -} - -static int sb_midi_out(int dev, unsigned char midi_byte) -{ - sb_devc *devc = midi_devs[dev]->devc; - - if (devc == NULL) - return 1; - - if (devc->midi_broken) - return 1; - - if (!sb_dsp_command(devc, midi_byte)) - { - devc->midi_broken = 1; - return 1; - } - return 1; -} - -static int sb_midi_start_read(int dev) -{ - return 0; -} - -static int sb_midi_end_read(int dev) -{ - sb_devc *devc = midi_devs[dev]->devc; - - if (devc == NULL) - return -ENXIO; - - sb_dsp_reset(devc); - devc->intr_active = 0; - return 0; -} - -static int sb_midi_ioctl(int dev, unsigned cmd, void __user *arg) -{ - return -EINVAL; -} - -void sb_midi_interrupt(sb_devc * devc) -{ - unsigned long flags; - unsigned char data; - - if (devc == NULL) - return; - - spin_lock_irqsave(&devc->lock, flags); - - data = inb(DSP_READ); - if (devc->input_opened) - devc->midi_input_intr(devc->my_mididev, data); - - spin_unlock_irqrestore(&devc->lock, flags); -} - -#define MIDI_SYNTH_NAME "Sound Blaster Midi" -#define MIDI_SYNTH_CAPS 0 -#include "midi_synth.h" - -static struct midi_operations sb_midi_operations = -{ - .owner = THIS_MODULE, - .info = {"Sound Blaster", 0, 0, SNDCARD_SB}, - .converter = &std_midi_synth, - .in_info = {0}, - .open = sb_midi_open, - .close = sb_midi_close, - .ioctl = sb_midi_ioctl, - .outputc = sb_midi_out, - .start_read = sb_midi_start_read, - .end_read = sb_midi_end_read, -}; - -void sb_dsp_midi_init(sb_devc * devc, struct module *owner) -{ - int dev; - - if (devc->model < 2) /* No MIDI support for SB 1.x */ - return; - - dev = sound_alloc_mididev(); - - if (dev == -1) - { - printk(KERN_ERR "sb_midi: too many MIDI devices detected\n"); - return; - } - std_midi_synth.midi_dev = devc->my_mididev = dev; - midi_devs[dev] = kmalloc(sizeof(struct midi_operations), GFP_KERNEL); - if (midi_devs[dev] == NULL) - { - printk(KERN_WARNING "Sound Blaster: failed to allocate MIDI memory.\n"); - sound_unload_mididev(dev); - return; - } - memcpy((char *) midi_devs[dev], (char *) &sb_midi_operations, - sizeof(struct midi_operations)); - - if (owner) - midi_devs[dev]->owner = owner; - - midi_devs[dev]->devc = devc; - - - midi_devs[dev]->converter = kmalloc(sizeof(struct synth_operations), GFP_KERNEL); - if (midi_devs[dev]->converter == NULL) - { - printk(KERN_WARNING "Sound Blaster: failed to allocate MIDI memory.\n"); - kfree(midi_devs[dev]); - sound_unload_mididev(dev); - return; - } - memcpy((char *) midi_devs[dev]->converter, (char *) &std_midi_synth, - sizeof(struct synth_operations)); - - midi_devs[dev]->converter->id = "SBMIDI"; - sequencer_init(); -} diff --git a/sound/oss/sb_mixer.c b/sound/oss/sb_mixer.c deleted file mode 100644 index acf7586aeb47..000000000000 --- a/sound/oss/sb_mixer.c +++ /dev/null @@ -1,770 +0,0 @@ -/* - * sound/oss/sb_mixer.c - * - * The low level mixer driver for the Sound Blaster compatible cards. - */ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * Rolf Fokkens (Dec 20 1998) : Moved ESS stuff into sb_ess.[ch] - * Stanislav Voronyi : Support for AWE 3DSE device (Jun 7 1999) - */ - -#include - -#include "sound_config.h" - -#define __SB_MIXER_C__ - -#include "sb.h" -#include "sb_mixer.h" - -#include "sb_ess.h" - -#define SBPRO_RECORDING_DEVICES (SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD) - -/* Same as SB Pro, unless I find otherwise */ -#define SGNXPRO_RECORDING_DEVICES SBPRO_RECORDING_DEVICES - -#define SBPRO_MIXER_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE | SOUND_MASK_MIC | \ - SOUND_MASK_CD | SOUND_MASK_VOLUME) - -/* SG NX Pro has treble and bass settings on the mixer. The 'speaker' - * channel is the COVOX/DisneySoundSource emulation volume control - * on the mixer. It does NOT control speaker volume. Should have own - * mask eventually? - */ -#define SGNXPRO_MIXER_DEVICES (SBPRO_MIXER_DEVICES|SOUND_MASK_BASS| \ - SOUND_MASK_TREBLE|SOUND_MASK_SPEAKER ) - -#define SB16_RECORDING_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_LINE | SOUND_MASK_MIC | \ - SOUND_MASK_CD) - -#define SB16_OUTFILTER_DEVICES (SOUND_MASK_LINE | SOUND_MASK_MIC | \ - SOUND_MASK_CD) - -#define SB16_MIXER_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_MIC | \ - SOUND_MASK_CD | \ - SOUND_MASK_IGAIN | SOUND_MASK_OGAIN | \ - SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE | \ - SOUND_MASK_IMIX) - -/* These are the only devices that are working at the moment. Others could - * be added once they are identified and a method is found to control them. - */ -#define ALS007_MIXER_DEVICES (SOUND_MASK_SYNTH | SOUND_MASK_LINE | \ - SOUND_MASK_PCM | SOUND_MASK_MIC | \ - SOUND_MASK_CD | \ - SOUND_MASK_VOLUME) - -static mixer_tab sbpro_mix = { -MIX_ENT(SOUND_MIXER_VOLUME, 0x22, 7, 4, 0x22, 3, 4), -MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_SYNTH, 0x26, 7, 4, 0x26, 3, 4), -MIX_ENT(SOUND_MIXER_PCM, 0x04, 7, 4, 0x04, 3, 4), -MIX_ENT(SOUND_MIXER_SPEAKER, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE, 0x2e, 7, 4, 0x2e, 3, 4), -MIX_ENT(SOUND_MIXER_MIC, 0x0a, 2, 3, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_CD, 0x28, 7, 4, 0x28, 3, 4), -MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_RECLEV, 0x00, 0, 0, 0x00, 0, 0) -}; - -static mixer_tab sb16_mix = { -MIX_ENT(SOUND_MIXER_VOLUME, 0x30, 7, 5, 0x31, 7, 5), -MIX_ENT(SOUND_MIXER_BASS, 0x46, 7, 4, 0x47, 7, 4), -MIX_ENT(SOUND_MIXER_TREBLE, 0x44, 7, 4, 0x45, 7, 4), -MIX_ENT(SOUND_MIXER_SYNTH, 0x34, 7, 5, 0x35, 7, 5), -MIX_ENT(SOUND_MIXER_PCM, 0x32, 7, 5, 0x33, 7, 5), -MIX_ENT(SOUND_MIXER_SPEAKER, 0x3b, 7, 2, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE, 0x38, 7, 5, 0x39, 7, 5), -MIX_ENT(SOUND_MIXER_MIC, 0x3a, 7, 5, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_CD, 0x36, 7, 5, 0x37, 7, 5), -MIX_ENT(SOUND_MIXER_IMIX, 0x3c, 0, 1, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_RECLEV, 0x3f, 7, 2, 0x40, 7, 2), /* Obsolete. Use IGAIN */ -MIX_ENT(SOUND_MIXER_IGAIN, 0x3f, 7, 2, 0x40, 7, 2), -MIX_ENT(SOUND_MIXER_OGAIN, 0x41, 7, 2, 0x42, 7, 2) -}; - -static mixer_tab als007_mix = -{ -MIX_ENT(SOUND_MIXER_VOLUME, 0x62, 7, 4, 0x62, 3, 4), -MIX_ENT(SOUND_MIXER_BASS, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_TREBLE, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_SYNTH, 0x66, 7, 4, 0x66, 3, 4), -MIX_ENT(SOUND_MIXER_PCM, 0x64, 7, 4, 0x64, 3, 4), -MIX_ENT(SOUND_MIXER_SPEAKER, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_LINE, 0x6e, 7, 4, 0x6e, 3, 4), -MIX_ENT(SOUND_MIXER_MIC, 0x6a, 2, 3, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_CD, 0x68, 7, 4, 0x68, 3, 4), -MIX_ENT(SOUND_MIXER_IMIX, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_ALTPCM, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_RECLEV, 0x00, 0, 0, 0x00, 0, 0), /* Obsolete. Use IGAIN */ -MIX_ENT(SOUND_MIXER_IGAIN, 0x00, 0, 0, 0x00, 0, 0), -MIX_ENT(SOUND_MIXER_OGAIN, 0x00, 0, 0, 0x00, 0, 0) -}; - - -/* SM_GAMES Master volume is lower and PCM & FM volumes - higher than with SB Pro. This improves the - sound quality */ - -static int smg_default_levels[32] = -{ - 0x2020, /* Master Volume */ - 0x4b4b, /* Bass */ - 0x4b4b, /* Treble */ - 0x6464, /* FM */ - 0x6464, /* PCM */ - 0x4b4b, /* PC Speaker */ - 0x4b4b, /* Ext Line */ - 0x0000, /* Mic */ - 0x4b4b, /* CD */ - 0x4b4b, /* Recording monitor */ - 0x4b4b, /* SB PCM */ - 0x4b4b, /* Recording level */ - 0x4b4b, /* Input gain */ - 0x4b4b, /* Output gain */ - 0x4040, /* Line1 */ - 0x4040, /* Line2 */ - 0x1515 /* Line3 */ -}; - -static int sb_default_levels[32] = -{ - 0x5a5a, /* Master Volume */ - 0x4b4b, /* Bass */ - 0x4b4b, /* Treble */ - 0x4b4b, /* FM */ - 0x4b4b, /* PCM */ - 0x4b4b, /* PC Speaker */ - 0x4b4b, /* Ext Line */ - 0x1010, /* Mic */ - 0x4b4b, /* CD */ - 0x0000, /* Recording monitor */ - 0x4b4b, /* SB PCM */ - 0x4b4b, /* Recording level */ - 0x4b4b, /* Input gain */ - 0x4b4b, /* Output gain */ - 0x4040, /* Line1 */ - 0x4040, /* Line2 */ - 0x1515 /* Line3 */ -}; - -static unsigned char sb16_recmasks_L[SOUND_MIXER_NRDEVICES] = -{ - 0x00, /* SOUND_MIXER_VOLUME */ - 0x00, /* SOUND_MIXER_BASS */ - 0x00, /* SOUND_MIXER_TREBLE */ - 0x40, /* SOUND_MIXER_SYNTH */ - 0x00, /* SOUND_MIXER_PCM */ - 0x00, /* SOUND_MIXER_SPEAKER */ - 0x10, /* SOUND_MIXER_LINE */ - 0x01, /* SOUND_MIXER_MIC */ - 0x04, /* SOUND_MIXER_CD */ - 0x00, /* SOUND_MIXER_IMIX */ - 0x00, /* SOUND_MIXER_ALTPCM */ - 0x00, /* SOUND_MIXER_RECLEV */ - 0x00, /* SOUND_MIXER_IGAIN */ - 0x00 /* SOUND_MIXER_OGAIN */ -}; - -static unsigned char sb16_recmasks_R[SOUND_MIXER_NRDEVICES] = -{ - 0x00, /* SOUND_MIXER_VOLUME */ - 0x00, /* SOUND_MIXER_BASS */ - 0x00, /* SOUND_MIXER_TREBLE */ - 0x20, /* SOUND_MIXER_SYNTH */ - 0x00, /* SOUND_MIXER_PCM */ - 0x00, /* SOUND_MIXER_SPEAKER */ - 0x08, /* SOUND_MIXER_LINE */ - 0x01, /* SOUND_MIXER_MIC */ - 0x02, /* SOUND_MIXER_CD */ - 0x00, /* SOUND_MIXER_IMIX */ - 0x00, /* SOUND_MIXER_ALTPCM */ - 0x00, /* SOUND_MIXER_RECLEV */ - 0x00, /* SOUND_MIXER_IGAIN */ - 0x00 /* SOUND_MIXER_OGAIN */ -}; - -static char smw_mix_regs[] = /* Left mixer registers */ -{ - 0x0b, /* SOUND_MIXER_VOLUME */ - 0x0d, /* SOUND_MIXER_BASS */ - 0x0d, /* SOUND_MIXER_TREBLE */ - 0x05, /* SOUND_MIXER_SYNTH */ - 0x09, /* SOUND_MIXER_PCM */ - 0x00, /* SOUND_MIXER_SPEAKER */ - 0x03, /* SOUND_MIXER_LINE */ - 0x01, /* SOUND_MIXER_MIC */ - 0x07, /* SOUND_MIXER_CD */ - 0x00, /* SOUND_MIXER_IMIX */ - 0x00, /* SOUND_MIXER_ALTPCM */ - 0x00, /* SOUND_MIXER_RECLEV */ - 0x00, /* SOUND_MIXER_IGAIN */ - 0x00, /* SOUND_MIXER_OGAIN */ - 0x00, /* SOUND_MIXER_LINE1 */ - 0x00, /* SOUND_MIXER_LINE2 */ - 0x00 /* SOUND_MIXER_LINE3 */ -}; - -static int sbmixnum = 1; - -static void sb_mixer_reset(sb_devc * devc); - -void sb_mixer_set_stereo(sb_devc * devc, int mode) -{ - sb_chgmixer(devc, OUT_FILTER, STEREO_DAC, (mode ? STEREO_DAC : MONO_DAC)); -} - -static int detect_mixer(sb_devc * devc) -{ - /* Just trust the mixer is there */ - return 1; -} - -static void oss_change_bits(sb_devc *devc, unsigned char *regval, int dev, int chn, int newval) -{ - unsigned char mask; - int shift; - - mask = (1 << (*devc->iomap)[dev][chn].nbits) - 1; - newval = (int) ((newval * mask) + 50) / 100; /* Scale */ - - shift = (*devc->iomap)[dev][chn].bitoffs - (*devc->iomap)[dev][LEFT_CHN].nbits + 1; - - *regval &= ~(mask << shift); /* Mask out previous value */ - *regval |= (newval & mask) << shift; /* Set the new value */ -} - -static int sb_mixer_get(sb_devc * devc, int dev) -{ - if (!((1 << dev) & devc->supported_devices)) - return -EINVAL; - return devc->levels[dev]; -} - -void smw_mixer_init(sb_devc * devc) -{ - int i; - - sb_setmixer(devc, 0x00, 0x18); /* Mute unused (Telephone) line */ - sb_setmixer(devc, 0x10, 0x38); /* Config register 2 */ - - devc->supported_devices = 0; - for (i = 0; i < sizeof(smw_mix_regs); i++) - if (smw_mix_regs[i] != 0) - devc->supported_devices |= (1 << i); - - devc->supported_rec_devices = devc->supported_devices & - ~(SOUND_MASK_BASS | SOUND_MASK_TREBLE | SOUND_MASK_PCM | SOUND_MASK_VOLUME); - sb_mixer_reset(devc); -} - -int sb_common_mixer_set(sb_devc * devc, int dev, int left, int right) -{ - int regoffs; - unsigned char val; - - if ((dev < 0) || (dev >= devc->iomap_sz)) - return -EINVAL; - - regoffs = (*devc->iomap)[dev][LEFT_CHN].regno; - - if (regoffs == 0) - return -EINVAL; - - val = sb_getmixer(devc, regoffs); - oss_change_bits(devc, &val, dev, LEFT_CHN, left); - - if ((*devc->iomap)[dev][RIGHT_CHN].regno != regoffs) /* - * Change register - */ - { - sb_setmixer(devc, regoffs, val); /* - * Save the old one - */ - regoffs = (*devc->iomap)[dev][RIGHT_CHN].regno; - - if (regoffs == 0) - return left | (left << 8); /* - * Just left channel present - */ - - val = sb_getmixer(devc, regoffs); /* - * Read the new one - */ - } - oss_change_bits(devc, &val, dev, RIGHT_CHN, right); - - sb_setmixer(devc, regoffs, val); - - return left | (right << 8); -} - -static int smw_mixer_set(sb_devc * devc, int dev, int left, int right) -{ - int reg, val; - - switch (dev) - { - case SOUND_MIXER_VOLUME: - sb_setmixer(devc, 0x0b, 96 - (96 * left / 100)); /* 96=mute, 0=max */ - sb_setmixer(devc, 0x0c, 96 - (96 * right / 100)); - break; - - case SOUND_MIXER_BASS: - case SOUND_MIXER_TREBLE: - devc->levels[dev] = left | (right << 8); - /* Set left bass and treble values */ - val = ((devc->levels[SOUND_MIXER_TREBLE] & 0xff) * 16 / (unsigned) 100) << 4; - val |= ((devc->levels[SOUND_MIXER_BASS] & 0xff) * 16 / (unsigned) 100) & 0x0f; - sb_setmixer(devc, 0x0d, val); - - /* Set right bass and treble values */ - val = (((devc->levels[SOUND_MIXER_TREBLE] >> 8) & 0xff) * 16 / (unsigned) 100) << 4; - val |= (((devc->levels[SOUND_MIXER_BASS] >> 8) & 0xff) * 16 / (unsigned) 100) & 0x0f; - sb_setmixer(devc, 0x0e, val); - - break; - - default: - /* bounds check */ - if (dev < 0 || dev >= ARRAY_SIZE(smw_mix_regs)) - return -EINVAL; - reg = smw_mix_regs[dev]; - if (reg == 0) - return -EINVAL; - sb_setmixer(devc, reg, (24 - (24 * left / 100)) | 0x20); /* 24=mute, 0=max */ - sb_setmixer(devc, reg + 1, (24 - (24 * right / 100)) | 0x40); - } - - devc->levels[dev] = left | (right << 8); - return left | (right << 8); -} - -static int sb_mixer_set(sb_devc * devc, int dev, int value) -{ - int left = value & 0x000000ff; - int right = (value & 0x0000ff00) >> 8; - int retval; - - if (left > 100) - left = 100; - if (right > 100) - right = 100; - - if ((dev < 0) || (dev > 31)) - return -EINVAL; - - if (!(devc->supported_devices & (1 << dev))) /* - * Not supported - */ - return -EINVAL; - - /* Differentiate depending on the chipsets */ - switch (devc->model) { - case MDL_SMW: - retval = smw_mixer_set(devc, dev, left, right); - break; - case MDL_ESS: - retval = ess_mixer_set(devc, dev, left, right); - break; - default: - retval = sb_common_mixer_set(devc, dev, left, right); - } - if (retval >= 0) devc->levels[dev] = retval; - - return retval; -} - -/* - * set_recsrc doesn't apply to ES188x - */ -static void set_recsrc(sb_devc * devc, int src) -{ - sb_setmixer(devc, RECORD_SRC, (sb_getmixer(devc, RECORD_SRC) & ~7) | (src & 0x7)); -} - -static int set_recmask(sb_devc * devc, int mask) -{ - int devmask, i; - unsigned char regimageL, regimageR; - - devmask = mask & devc->supported_rec_devices; - - switch (devc->model) - { - case MDL_SBPRO: - case MDL_ESS: - case MDL_JAZZ: - case MDL_SMW: - if (devc->model == MDL_ESS && ess_set_recmask (devc, &devmask)) { - break; - } - if (devmask != SOUND_MASK_MIC && - devmask != SOUND_MASK_LINE && - devmask != SOUND_MASK_CD) - { - /* - * More than one device selected. Drop the - * previous selection - */ - devmask &= ~devc->recmask; - } - if (devmask != SOUND_MASK_MIC && - devmask != SOUND_MASK_LINE && - devmask != SOUND_MASK_CD) - { - /* - * More than one device selected. Default to - * mic - */ - devmask = SOUND_MASK_MIC; - } - if (devmask ^ devc->recmask) /* - * Input source changed - */ - { - switch (devmask) - { - case SOUND_MASK_MIC: - set_recsrc(devc, SRC__MIC); - break; - - case SOUND_MASK_LINE: - set_recsrc(devc, SRC__LINE); - break; - - case SOUND_MASK_CD: - set_recsrc(devc, SRC__CD); - break; - - default: - set_recsrc(devc, SRC__MIC); - } - } - break; - - case MDL_SB16: - if (!devmask) - devmask = SOUND_MASK_MIC; - - if (devc->submodel == SUBMDL_ALS007) - { - switch (devmask) - { - case SOUND_MASK_LINE: - sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_LINE); - break; - case SOUND_MASK_CD: - sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_CD); - break; - case SOUND_MASK_SYNTH: - sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_SYNTH); - break; - default: /* Also takes care of SOUND_MASK_MIC case */ - sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_MIC); - break; - } - } - else - { - regimageL = regimageR = 0; - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) - { - if ((1 << i) & devmask) - { - regimageL |= sb16_recmasks_L[i]; - regimageR |= sb16_recmasks_R[i]; - } - sb_setmixer (devc, SB16_IMASK_L, regimageL); - sb_setmixer (devc, SB16_IMASK_R, regimageR); - } - } - break; - } - devc->recmask = devmask; - return devc->recmask; -} - -static int set_outmask(sb_devc * devc, int mask) -{ - int devmask, i; - unsigned char regimage; - - devmask = mask & devc->supported_out_devices; - - switch (devc->model) - { - case MDL_SB16: - if (devc->submodel == SUBMDL_ALS007) - break; - else - { - regimage = 0; - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) - { - if ((1 << i) & devmask) - { - regimage |= (sb16_recmasks_L[i] | sb16_recmasks_R[i]); - } - sb_setmixer (devc, SB16_OMASK, regimage); - } - } - break; - default: - break; - } - - devc->outmask = devmask; - return devc->outmask; -} - -static int sb_mixer_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - sb_devc *devc = mixer_devs[dev]->devc; - int val, ret; - int __user *p = arg; - - /* - * Use ioctl(fd, SOUND_MIXER_AGC, &mode) to turn AGC off (0) or on (1). - * Use ioctl(fd, SOUND_MIXER_3DSE, &mode) to turn 3DSE off (0) or on (1) - * or mode==2 put 3DSE state to mode. - */ - if (devc->model == MDL_SB16) { - if (cmd == SOUND_MIXER_AGC) - { - if (get_user(val, p)) - return -EFAULT; - sb_setmixer(devc, 0x43, (~val) & 0x01); - return 0; - } - if (cmd == SOUND_MIXER_3DSE) - { - /* I put here 15, but I don't know the exact version. - At least my 4.13 havn't 3DSE, 4.16 has it. */ - if (devc->minor < 15) - return -EINVAL; - if (get_user(val, p)) - return -EFAULT; - if (val == 0 || val == 1) - sb_chgmixer(devc, AWE_3DSE, 0x01, val); - else if (val == 2) - { - ret = sb_getmixer(devc, AWE_3DSE)&0x01; - return put_user(ret, p); - } - else - return -EINVAL; - return 0; - } - } - if (((cmd >> 8) & 0xff) == 'M') - { - if (_SIOC_DIR(cmd) & _SIOC_WRITE) - { - if (get_user(val, p)) - return -EFAULT; - switch (cmd & 0xff) - { - case SOUND_MIXER_RECSRC: - ret = set_recmask(devc, val); - break; - - case SOUND_MIXER_OUTSRC: - ret = set_outmask(devc, val); - break; - - default: - ret = sb_mixer_set(devc, cmd & 0xff, val); - } - } - else switch (cmd & 0xff) - { - case SOUND_MIXER_RECSRC: - ret = devc->recmask; - break; - - case SOUND_MIXER_OUTSRC: - ret = devc->outmask; - break; - - case SOUND_MIXER_DEVMASK: - ret = devc->supported_devices; - break; - - case SOUND_MIXER_STEREODEVS: - ret = devc->supported_devices; - /* The ESS seems to have stereo mic controls */ - if (devc->model == MDL_ESS) - ret &= ~(SOUND_MASK_SPEAKER|SOUND_MASK_IMIX); - else if (devc->model != MDL_JAZZ && devc->model != MDL_SMW) - ret &= ~(SOUND_MASK_MIC | SOUND_MASK_SPEAKER | SOUND_MASK_IMIX); - break; - - case SOUND_MIXER_RECMASK: - ret = devc->supported_rec_devices; - break; - - case SOUND_MIXER_OUTMASK: - ret = devc->supported_out_devices; - break; - - case SOUND_MIXER_CAPS: - ret = devc->mixer_caps; - break; - - default: - ret = sb_mixer_get(devc, cmd & 0xff); - break; - } - return put_user(ret, p); - } else - return -EINVAL; -} - -static struct mixer_operations sb_mixer_operations = -{ - .owner = THIS_MODULE, - .id = "SB", - .name = "Sound Blaster", - .ioctl = sb_mixer_ioctl -}; - -static struct mixer_operations als007_mixer_operations = -{ - .owner = THIS_MODULE, - .id = "ALS007", - .name = "Avance ALS-007", - .ioctl = sb_mixer_ioctl -}; - -static void sb_mixer_reset(sb_devc * devc) -{ - char name[32]; - int i; - - sprintf(name, "SB_%d", devc->sbmixnum); - - if (devc->sbmo.sm_games) - devc->levels = load_mixer_volumes(name, smg_default_levels, 1); - else - devc->levels = load_mixer_volumes(name, sb_default_levels, 1); - - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) - sb_mixer_set(devc, i, devc->levels[i]); - - if (devc->model != MDL_ESS || !ess_mixer_reset (devc)) { - set_recmask(devc, SOUND_MASK_MIC); - } -} - -int sb_mixer_init(sb_devc * devc, struct module *owner) -{ - int mixer_type = 0; - int m; - - devc->sbmixnum = sbmixnum++; - devc->levels = NULL; - - sb_setmixer(devc, 0x00, 0); /* Reset mixer */ - - if (!(mixer_type = detect_mixer(devc))) - return 0; /* No mixer. Why? */ - - switch (devc->model) - { - case MDL_ESSPCI: - case MDL_YMPCI: - case MDL_SBPRO: - case MDL_AZTECH: - case MDL_JAZZ: - devc->mixer_caps = SOUND_CAP_EXCL_INPUT; - devc->supported_devices = SBPRO_MIXER_DEVICES; - devc->supported_rec_devices = SBPRO_RECORDING_DEVICES; - devc->iomap = &sbpro_mix; - devc->iomap_sz = ARRAY_SIZE(sbpro_mix); - break; - - case MDL_ESS: - ess_mixer_init (devc); - break; - - case MDL_SMW: - devc->mixer_caps = SOUND_CAP_EXCL_INPUT; - devc->supported_devices = 0; - devc->supported_rec_devices = 0; - devc->iomap = &sbpro_mix; - devc->iomap_sz = ARRAY_SIZE(sbpro_mix); - smw_mixer_init(devc); - break; - - case MDL_SB16: - devc->mixer_caps = 0; - devc->supported_rec_devices = SB16_RECORDING_DEVICES; - devc->supported_out_devices = SB16_OUTFILTER_DEVICES; - if (devc->submodel != SUBMDL_ALS007) - { - devc->supported_devices = SB16_MIXER_DEVICES; - devc->iomap = &sb16_mix; - devc->iomap_sz = ARRAY_SIZE(sb16_mix); - } - else - { - devc->supported_devices = ALS007_MIXER_DEVICES; - devc->iomap = &als007_mix; - devc->iomap_sz = ARRAY_SIZE(als007_mix); - } - break; - - default: - printk(KERN_WARNING "sb_mixer: Unsupported mixer type %d\n", devc->model); - return 0; - } - - m = sound_alloc_mixerdev(); - if (m == -1) - return 0; - - mixer_devs[m] = kmalloc(sizeof(struct mixer_operations), GFP_KERNEL); - if (mixer_devs[m] == NULL) - { - printk(KERN_ERR "sb_mixer: Can't allocate memory\n"); - sound_unload_mixerdev(m); - return 0; - } - - if (devc->submodel != SUBMDL_ALS007) - memcpy ((char *) mixer_devs[m], (char *) &sb_mixer_operations, sizeof (struct mixer_operations)); - else - memcpy ((char *) mixer_devs[m], (char *) &als007_mixer_operations, sizeof (struct mixer_operations)); - - mixer_devs[m]->devc = devc; - - if (owner) - mixer_devs[m]->owner = owner; - - devc->my_mixerdev = m; - sb_mixer_reset(devc); - return 1; -} - -void sb_mixer_unload(sb_devc *devc) -{ - if (devc->my_mixerdev == -1) - return; - - kfree(mixer_devs[devc->my_mixerdev]); - sound_unload_mixerdev(devc->my_mixerdev); - sbmixnum--; -} diff --git a/sound/oss/sb_mixer.h b/sound/oss/sb_mixer.h deleted file mode 100644 index 4b9425f085e3..000000000000 --- a/sound/oss/sb_mixer.h +++ /dev/null @@ -1,105 +0,0 @@ -/* - * sound/oss/sb_mixer.h - * - * Definitions for the SB Pro and SB16 mixers - */ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ - -/* - * Modified: - * Hunyue Yau Jan 6 1994 - * Added defines for the Sound Galaxy NX Pro mixer. - * - * Rolf Fokkens Dec 20 1998 - * Added defines for some ES188x chips. - * - * Rolf Fokkens Dec 27 1998 - * Moved static stuff to sb_mixer.c - * - */ -/* - * Mixer registers - * - * NOTE! RECORD_SRC == IN_FILTER - */ - -/* - * Mixer registers of SB Pro - */ -#define VOC_VOL 0x04 -#define MIC_VOL 0x0A -#define MIC_MIX 0x0A -#define RECORD_SRC 0x0C -#define IN_FILTER 0x0C -#define OUT_FILTER 0x0E -#define MASTER_VOL 0x22 -#define FM_VOL 0x26 -#define CD_VOL 0x28 -#define LINE_VOL 0x2E -#define IRQ_NR 0x80 -#define DMA_NR 0x81 -#define IRQ_STAT 0x82 -#define OPSW 0x3c - -/* - * Additional registers on the SG NX Pro - */ -#define COVOX_VOL 0x42 -#define TREBLE_LVL 0x44 -#define BASS_LVL 0x46 - -#define FREQ_HI (1 << 3)/* Use High-frequency ANFI filters */ -#define FREQ_LOW 0 /* Use Low-frequency ANFI filters */ -#define FILT_ON 0 /* Yes, 0 to turn it on, 1 for off */ -#define FILT_OFF (1 << 5) - -#define MONO_DAC 0x00 -#define STEREO_DAC 0x02 - -/* - * Mixer registers of SB16 - */ -#define SB16_OMASK 0x3c -#define SB16_IMASK_L 0x3d -#define SB16_IMASK_R 0x3e - -#define LEFT_CHN 0 -#define RIGHT_CHN 1 - -/* - * 3DSE register of AWE32/64 - */ -#define AWE_3DSE 0x90 - -/* - * Mixer registers of ALS007 - */ -#define ALS007_RECORD_SRC 0x6c -#define ALS007_OUTPUT_CTRL1 0x3c -#define ALS007_OUTPUT_CTRL2 0x4c - -#define MIX_ENT(name, reg_l, bit_l, len_l, reg_r, bit_r, len_r) \ - {{reg_l, bit_l, len_l}, {reg_r, bit_r, len_r}} - -/* - * Recording sources (SB Pro) - */ - -#define SRC__MIC 1 /* Select Microphone recording source */ -#define SRC__CD 3 /* Select CD recording source */ -#define SRC__LINE 7 /* Use Line-in for recording source */ - -/* - * Recording sources for ALS-007 - */ - -#define ALS007_MIC 4 -#define ALS007_LINE 6 -#define ALS007_CD 2 -#define ALS007_SYNTH 7 diff --git a/sound/oss/sequencer.c b/sound/oss/sequencer.c deleted file mode 100644 index f19da4b47c1d..000000000000 --- a/sound/oss/sequencer.c +++ /dev/null @@ -1,1661 +0,0 @@ -/* - * sound/oss/sequencer.c - * - * The sequencer personality manager. - */ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ -/* - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * Alan Cox : reformatted and fixed a pair of null pointer bugs - */ -#include -#include -#include "sound_config.h" - -#include "midi_ctrl.h" -#include "sleep.h" - -static int sequencer_ok; -static struct sound_timer_operations *tmr; -static int tmr_no = -1; /* Currently selected timer */ -static int pending_timer = -1; /* For timer change operation */ -extern unsigned long seq_time; - -static int obsolete_api_used; -static DEFINE_SPINLOCK(lock); - -/* - * Local counts for number of synth and MIDI devices. These are initialized - * by the sequencer_open. - */ -static int max_mididev; -static int max_synthdev; - -/* - * The seq_mode gives the operating mode of the sequencer: - * 1 = level1 (the default) - * 2 = level2 (extended capabilities) - */ - -#define SEQ_1 1 -#define SEQ_2 2 -static int seq_mode = SEQ_1; - -static DECLARE_WAIT_QUEUE_HEAD(seq_sleeper); -static DECLARE_WAIT_QUEUE_HEAD(midi_sleeper); - -static int midi_opened[MAX_MIDI_DEV]; - -static int midi_written[MAX_MIDI_DEV]; - -static unsigned long prev_input_time; -static int prev_event_time; - -#include "tuning.h" - -#define EV_SZ 8 -#define IEV_SZ 8 - -static unsigned char *queue; -static unsigned char *iqueue; - -static volatile int qhead, qtail, qlen; -static volatile int iqhead, iqtail, iqlen; -static volatile int seq_playing; -static volatile int sequencer_busy; -static int output_threshold; -static long pre_event_timeout; -static unsigned synth_open_mask; - -static int seq_queue(unsigned char *note, char nonblock); -static void seq_startplay(void); -static int seq_sync(void); -static void seq_reset(void); - -#if MAX_SYNTH_DEV > 15 -#error Too many synthesizer devices enabled. -#endif - -int sequencer_read(int dev, struct file *file, char __user *buf, int count) -{ - int c = count, p = 0; - int ev_len; - unsigned long flags; - - dev = dev >> 4; - - ev_len = seq_mode == SEQ_1 ? 4 : 8; - - spin_lock_irqsave(&lock,flags); - - if (!iqlen) - { - spin_unlock_irqrestore(&lock,flags); - if (file->f_flags & O_NONBLOCK) { - return -EAGAIN; - } - - oss_broken_sleep_on(&midi_sleeper, pre_event_timeout); - spin_lock_irqsave(&lock,flags); - if (!iqlen) - { - spin_unlock_irqrestore(&lock,flags); - return 0; - } - } - while (iqlen && c >= ev_len) - { - char *fixit = (char *) &iqueue[iqhead * IEV_SZ]; - spin_unlock_irqrestore(&lock,flags); - if (copy_to_user(&(buf)[p], fixit, ev_len)) - return count - c; - p += ev_len; - c -= ev_len; - - spin_lock_irqsave(&lock,flags); - iqhead = (iqhead + 1) % SEQ_MAX_QUEUE; - iqlen--; - } - spin_unlock_irqrestore(&lock,flags); - return count - c; -} - -static void sequencer_midi_output(int dev) -{ - /* - * Currently NOP - */ -} - -void seq_copy_to_input(unsigned char *event_rec, int len) -{ - unsigned long flags; - - /* - * Verify that the len is valid for the current mode. - */ - - if (len != 4 && len != 8) - return; - if ((seq_mode == SEQ_1) != (len == 4)) - return; - - if (iqlen >= (SEQ_MAX_QUEUE - 1)) - return; /* Overflow */ - - spin_lock_irqsave(&lock,flags); - memcpy(&iqueue[iqtail * IEV_SZ], event_rec, len); - iqlen++; - iqtail = (iqtail + 1) % SEQ_MAX_QUEUE; - wake_up(&midi_sleeper); - spin_unlock_irqrestore(&lock,flags); -} -EXPORT_SYMBOL(seq_copy_to_input); - -static void sequencer_midi_input(int dev, unsigned char data) -{ - unsigned int tstamp; - unsigned char event_rec[4]; - - if (data == 0xfe) /* Ignore active sensing */ - return; - - tstamp = jiffies - seq_time; - - if (tstamp != prev_input_time) - { - tstamp = (tstamp << 8) | SEQ_WAIT; - seq_copy_to_input((unsigned char *) &tstamp, 4); - prev_input_time = tstamp; - } - event_rec[0] = SEQ_MIDIPUTC; - event_rec[1] = data; - event_rec[2] = dev; - event_rec[3] = 0; - - seq_copy_to_input(event_rec, 4); -} - -void seq_input_event(unsigned char *event_rec, int len) -{ - unsigned long this_time; - - if (seq_mode == SEQ_2) - this_time = tmr->get_time(tmr_no); - else - this_time = jiffies - seq_time; - - if (this_time != prev_input_time) - { - unsigned char tmp_event[8]; - - tmp_event[0] = EV_TIMING; - tmp_event[1] = TMR_WAIT_ABS; - tmp_event[2] = 0; - tmp_event[3] = 0; - *(unsigned int *) &tmp_event[4] = this_time; - - seq_copy_to_input(tmp_event, 8); - prev_input_time = this_time; - } - seq_copy_to_input(event_rec, len); -} -EXPORT_SYMBOL(seq_input_event); - -int sequencer_write(int dev, struct file *file, const char __user *buf, int count) -{ - unsigned char event_rec[EV_SZ], ev_code; - int p = 0, c, ev_size; - int mode = translate_mode(file); - - dev = dev >> 4; - - if (mode == OPEN_READ) - return -EIO; - - c = count; - - while (c >= 4) - { - if (copy_from_user((char *) event_rec, &(buf)[p], 4)) - goto out; - ev_code = event_rec[0]; - - if (ev_code == SEQ_FULLSIZE) - { - int err, fmt; - - dev = *(unsigned short *) &event_rec[2]; - if (dev < 0 || dev >= max_synthdev || synth_devs[dev] == NULL) - return -ENXIO; - - if (!(synth_open_mask & (1 << dev))) - return -ENXIO; - - fmt = (*(short *) &event_rec[0]) & 0xffff; - err = synth_devs[dev]->load_patch(dev, fmt, buf + p, c, 0); - if (err < 0) - return err; - - return err; - } - if (ev_code >= 128) - { - if (seq_mode == SEQ_2 && ev_code == SEQ_EXTENDED) - { - printk(KERN_WARNING "Sequencer: Invalid level 2 event %x\n", ev_code); - return -EINVAL; - } - ev_size = 8; - - if (c < ev_size) - { - if (!seq_playing) - seq_startplay(); - return count - c; - } - if (copy_from_user((char *)&event_rec[4], - &(buf)[p + 4], 4)) - goto out; - - } - else - { - if (seq_mode == SEQ_2) - { - printk(KERN_WARNING "Sequencer: 4 byte event in level 2 mode\n"); - return -EINVAL; - } - ev_size = 4; - - if (event_rec[0] != SEQ_MIDIPUTC) - obsolete_api_used = 1; - } - - if (event_rec[0] == SEQ_MIDIPUTC) - { - if (!midi_opened[event_rec[2]]) - { - int err, mode; - int dev = event_rec[2]; - - if (dev >= max_mididev || midi_devs[dev]==NULL) - { - /*printk("Sequencer Error: Nonexistent MIDI device %d\n", dev);*/ - return -ENXIO; - } - mode = translate_mode(file); - - if ((err = midi_devs[dev]->open(dev, mode, - sequencer_midi_input, sequencer_midi_output)) < 0) - { - seq_reset(); - printk(KERN_WARNING "Sequencer Error: Unable to open Midi #%d\n", dev); - return err; - } - midi_opened[dev] = 1; - } - } - if (!seq_queue(event_rec, (file->f_flags & (O_NONBLOCK) ? 1 : 0))) - { - int processed = count - c; - - if (!seq_playing) - seq_startplay(); - - if (!processed && (file->f_flags & O_NONBLOCK)) - return -EAGAIN; - else - return processed; - } - p += ev_size; - c -= ev_size; - } - - if (!seq_playing) - seq_startplay(); -out: - return count; -} - -static int seq_queue(unsigned char *note, char nonblock) -{ - - /* - * Test if there is space in the queue - */ - - if (qlen >= SEQ_MAX_QUEUE) - if (!seq_playing) - seq_startplay(); /* - * Give chance to drain the queue - */ - - if (!nonblock && qlen >= SEQ_MAX_QUEUE && !waitqueue_active(&seq_sleeper)) { - /* - * Sleep until there is enough space on the queue - */ - oss_broken_sleep_on(&seq_sleeper, MAX_SCHEDULE_TIMEOUT); - } - if (qlen >= SEQ_MAX_QUEUE) - { - return 0; /* - * To be sure - */ - } - memcpy(&queue[qtail * EV_SZ], note, EV_SZ); - - qtail = (qtail + 1) % SEQ_MAX_QUEUE; - qlen++; - - return 1; -} - -static int extended_event(unsigned char *q) -{ - int dev = q[2]; - - if (dev < 0 || dev >= max_synthdev) - return -ENXIO; - - if (!(synth_open_mask & (1 << dev))) - return -ENXIO; - - switch (q[1]) - { - case SEQ_NOTEOFF: - synth_devs[dev]->kill_note(dev, q[3], q[4], q[5]); - break; - - case SEQ_NOTEON: - if (q[4] > 127 && q[4] != 255) - return 0; - - if (q[5] == 0) - { - synth_devs[dev]->kill_note(dev, q[3], q[4], q[5]); - break; - } - synth_devs[dev]->start_note(dev, q[3], q[4], q[5]); - break; - - case SEQ_PGMCHANGE: - synth_devs[dev]->set_instr(dev, q[3], q[4]); - break; - - case SEQ_AFTERTOUCH: - synth_devs[dev]->aftertouch(dev, q[3], q[4]); - break; - - case SEQ_BALANCE: - synth_devs[dev]->panning(dev, q[3], (char) q[4]); - break; - - case SEQ_CONTROLLER: - synth_devs[dev]->controller(dev, q[3], q[4], (short) (q[5] | (q[6] << 8))); - break; - - case SEQ_VOLMODE: - if (synth_devs[dev]->volume_method != NULL) - synth_devs[dev]->volume_method(dev, q[3]); - break; - - default: - return -EINVAL; - } - return 0; -} - -static int find_voice(int dev, int chn, int note) -{ - unsigned short key; - int i; - - key = (chn << 8) | (note + 1); - for (i = 0; i < synth_devs[dev]->alloc.max_voice; i++) - if (synth_devs[dev]->alloc.map[i] == key) - return i; - return -1; -} - -static int alloc_voice(int dev, int chn, int note) -{ - unsigned short key; - int voice; - - key = (chn << 8) | (note + 1); - - voice = synth_devs[dev]->alloc_voice(dev, chn, note, - &synth_devs[dev]->alloc); - synth_devs[dev]->alloc.map[voice] = key; - synth_devs[dev]->alloc.alloc_times[voice] = - synth_devs[dev]->alloc.timestamp++; - return voice; -} - -static void seq_chn_voice_event(unsigned char *event_rec) -{ -#define dev event_rec[1] -#define cmd event_rec[2] -#define chn event_rec[3] -#define note event_rec[4] -#define parm event_rec[5] - - int voice = -1; - - if ((int) dev > max_synthdev || synth_devs[dev] == NULL) - return; - if (!(synth_open_mask & (1 << dev))) - return; - if (!synth_devs[dev]) - return; - - if (seq_mode == SEQ_2) - { - if (synth_devs[dev]->alloc_voice) - voice = find_voice(dev, chn, note); - - if (cmd == MIDI_NOTEON && parm == 0) - { - cmd = MIDI_NOTEOFF; - parm = 64; - } - } - - switch (cmd) - { - case MIDI_NOTEON: - if (note > 127 && note != 255) /* Not a seq2 feature */ - return; - - if (voice == -1 && seq_mode == SEQ_2 && synth_devs[dev]->alloc_voice) - { - /* Internal synthesizer (FM, GUS, etc) */ - voice = alloc_voice(dev, chn, note); - } - if (voice == -1) - voice = chn; - - if (seq_mode == SEQ_2 && (int) dev < num_synths) - { - /* - * The MIDI channel 10 is a percussive channel. Use the note - * number to select the proper patch (128 to 255) to play. - */ - - if (chn == 9) - { - synth_devs[dev]->set_instr(dev, voice, 128 + note); - synth_devs[dev]->chn_info[chn].pgm_num = 128 + note; - } - synth_devs[dev]->setup_voice(dev, voice, chn); - } - synth_devs[dev]->start_note(dev, voice, note, parm); - break; - - case MIDI_NOTEOFF: - if (voice == -1) - voice = chn; - synth_devs[dev]->kill_note(dev, voice, note, parm); - break; - - case MIDI_KEY_PRESSURE: - if (voice == -1) - voice = chn; - synth_devs[dev]->aftertouch(dev, voice, parm); - break; - - default:; - } -#undef dev -#undef cmd -#undef chn -#undef note -#undef parm -} - - -static void seq_chn_common_event(unsigned char *event_rec) -{ - unsigned char dev = event_rec[1]; - unsigned char cmd = event_rec[2]; - unsigned char chn = event_rec[3]; - unsigned char p1 = event_rec[4]; - - /* unsigned char p2 = event_rec[5]; */ - unsigned short w14 = *(short *) &event_rec[6]; - - if ((int) dev > max_synthdev || synth_devs[dev] == NULL) - return; - if (!(synth_open_mask & (1 << dev))) - return; - if (!synth_devs[dev]) - return; - - switch (cmd) - { - case MIDI_PGM_CHANGE: - if (seq_mode == SEQ_2) - { - if (chn > 15) - break; - - synth_devs[dev]->chn_info[chn].pgm_num = p1; - if ((int) dev >= num_synths) - synth_devs[dev]->set_instr(dev, chn, p1); - } - else - synth_devs[dev]->set_instr(dev, chn, p1); - - break; - - case MIDI_CTL_CHANGE: - if (seq_mode == SEQ_2) - { - if (chn > 15 || p1 > 127) - break; - - synth_devs[dev]->chn_info[chn].controllers[p1] = w14 & 0x7f; - - if (p1 < 32) /* Setting MSB should clear LSB to 0 */ - synth_devs[dev]->chn_info[chn].controllers[p1 + 32] = 0; - - if ((int) dev < num_synths) - { - int val = w14 & 0x7f; - int i, key; - - if (p1 < 64) /* Combine MSB and LSB */ - { - val = ((synth_devs[dev]-> - chn_info[chn].controllers[p1 & ~32] & 0x7f) << 7) - | (synth_devs[dev]-> - chn_info[chn].controllers[p1 | 32] & 0x7f); - p1 &= ~32; - } - /* Handle all playing notes on this channel */ - - key = ((int) chn << 8); - - for (i = 0; i < synth_devs[dev]->alloc.max_voice; i++) - if ((synth_devs[dev]->alloc.map[i] & 0xff00) == key) - synth_devs[dev]->controller(dev, i, p1, val); - } - else - synth_devs[dev]->controller(dev, chn, p1, w14); - } - else /* Mode 1 */ - synth_devs[dev]->controller(dev, chn, p1, w14); - break; - - case MIDI_PITCH_BEND: - if (seq_mode == SEQ_2) - { - if (chn > 15) - break; - - synth_devs[dev]->chn_info[chn].bender_value = w14; - - if ((int) dev < num_synths) - { - /* Handle all playing notes on this channel */ - int i, key; - - key = (chn << 8); - - for (i = 0; i < synth_devs[dev]->alloc.max_voice; i++) - if ((synth_devs[dev]->alloc.map[i] & 0xff00) == key) - synth_devs[dev]->bender(dev, i, w14); - } - else - synth_devs[dev]->bender(dev, chn, w14); - } - else /* MODE 1 */ - synth_devs[dev]->bender(dev, chn, w14); - break; - - default:; - } -} - -static int seq_timing_event(unsigned char *event_rec) -{ - unsigned char cmd = event_rec[1]; - unsigned int parm = *(int *) &event_rec[4]; - - if (seq_mode == SEQ_2) - { - int ret; - - if ((ret = tmr->event(tmr_no, event_rec)) == TIMER_ARMED) - if ((SEQ_MAX_QUEUE - qlen) >= output_threshold) - wake_up(&seq_sleeper); - return ret; - } - switch (cmd) - { - case TMR_WAIT_REL: - parm += prev_event_time; - - /* - * NOTE! No break here. Execution of TMR_WAIT_REL continues in the - * next case (TMR_WAIT_ABS) - */ - - case TMR_WAIT_ABS: - if (parm > 0) - { - long time; - - time = parm; - prev_event_time = time; - - seq_playing = 1; - request_sound_timer(time); - - if ((SEQ_MAX_QUEUE - qlen) >= output_threshold) - wake_up(&seq_sleeper); - return TIMER_ARMED; - } - break; - - case TMR_START: - seq_time = jiffies; - prev_input_time = 0; - prev_event_time = 0; - break; - - case TMR_STOP: - break; - - case TMR_CONTINUE: - break; - - case TMR_TEMPO: - break; - - case TMR_ECHO: - parm = (parm << 8 | SEQ_ECHO); - seq_copy_to_input((unsigned char *) &parm, 4); - break; - - default:; - } - - return TIMER_NOT_ARMED; -} - -static void seq_local_event(unsigned char *event_rec) -{ - unsigned char cmd = event_rec[1]; - unsigned int parm = *((unsigned int *) &event_rec[4]); - - switch (cmd) - { - case LOCL_STARTAUDIO: - DMAbuf_start_devices(parm); - break; - - default:; - } -} - -static void seq_sysex_message(unsigned char *event_rec) -{ - unsigned int dev = event_rec[1]; - int i, l = 0; - unsigned char *buf = &event_rec[2]; - - if (dev > max_synthdev) - return; - if (!(synth_open_mask & (1 << dev))) - return; - if (!synth_devs[dev]) - return; - - l = 0; - for (i = 0; i < 6 && buf[i] != 0xff; i++) - l = i + 1; - - if (!synth_devs[dev]->send_sysex) - return; - if (l > 0) - synth_devs[dev]->send_sysex(dev, buf, l); -} - -static int play_event(unsigned char *q) -{ - /* - * NOTE! This routine returns - * 0 = normal event played. - * 1 = Timer armed. Suspend playback until timer callback. - * 2 = MIDI output buffer full. Restore queue and suspend until timer - */ - unsigned int *delay; - - switch (q[0]) - { - case SEQ_NOTEOFF: - if (synth_open_mask & (1 << 0)) - if (synth_devs[0]) - synth_devs[0]->kill_note(0, q[1], 255, q[3]); - break; - - case SEQ_NOTEON: - if (q[4] < 128 || q[4] == 255) - if (synth_open_mask & (1 << 0)) - if (synth_devs[0]) - synth_devs[0]->start_note(0, q[1], q[2], q[3]); - break; - - case SEQ_WAIT: - delay = (unsigned int *) q; /* - * Bytes 1 to 3 are containing the * - * delay in 'ticks' - */ - *delay = (*delay >> 8) & 0xffffff; - - if (*delay > 0) - { - long time; - - seq_playing = 1; - time = *delay; - prev_event_time = time; - - request_sound_timer(time); - - if ((SEQ_MAX_QUEUE - qlen) >= output_threshold) - wake_up(&seq_sleeper); - /* - * The timer is now active and will reinvoke this function - * after the timer expires. Return to the caller now. - */ - return 1; - } - break; - - case SEQ_PGMCHANGE: - if (synth_open_mask & (1 << 0)) - if (synth_devs[0]) - synth_devs[0]->set_instr(0, q[1], q[2]); - break; - - case SEQ_SYNCTIMER: /* - * Reset timer - */ - seq_time = jiffies; - prev_input_time = 0; - prev_event_time = 0; - break; - - case SEQ_MIDIPUTC: /* - * Put a midi character - */ - if (midi_opened[q[2]]) - { - int dev; - - dev = q[2]; - - if (dev < 0 || dev >= num_midis || midi_devs[dev] == NULL) - break; - - if (!midi_devs[dev]->outputc(dev, q[1])) - { - /* - * Output FIFO is full. Wait one timer cycle and try again. - */ - - seq_playing = 1; - request_sound_timer(-1); - return 2; - } - else - midi_written[dev] = 1; - } - break; - - case SEQ_ECHO: - seq_copy_to_input(q, 4); /* - * Echo back to the process - */ - break; - - case SEQ_PRIVATE: - if ((int) q[1] < max_synthdev) - synth_devs[q[1]]->hw_control(q[1], q); - break; - - case SEQ_EXTENDED: - extended_event(q); - break; - - case EV_CHN_VOICE: - seq_chn_voice_event(q); - break; - - case EV_CHN_COMMON: - seq_chn_common_event(q); - break; - - case EV_TIMING: - if (seq_timing_event(q) == TIMER_ARMED) - { - return 1; - } - break; - - case EV_SEQ_LOCAL: - seq_local_event(q); - break; - - case EV_SYSEX: - seq_sysex_message(q); - break; - - default:; - } - return 0; -} - -/* called also as timer in irq context */ -static void seq_startplay(void) -{ - int this_one, action; - unsigned long flags; - - while (qlen > 0) - { - - spin_lock_irqsave(&lock,flags); - qhead = ((this_one = qhead) + 1) % SEQ_MAX_QUEUE; - qlen--; - spin_unlock_irqrestore(&lock,flags); - - seq_playing = 1; - - if ((action = play_event(&queue[this_one * EV_SZ]))) - { /* Suspend playback. Next timer routine invokes this routine again */ - if (action == 2) - { - qlen++; - qhead = this_one; - } - return; - } - } - - seq_playing = 0; - - if ((SEQ_MAX_QUEUE - qlen) >= output_threshold) - wake_up(&seq_sleeper); -} - -static void reset_controllers(int dev, unsigned char *controller, int update_dev) -{ - int i; - for (i = 0; i < 128; i++) - controller[i] = ctrl_def_values[i]; -} - -static void setup_mode2(void) -{ - int dev; - - max_synthdev = num_synths; - - for (dev = 0; dev < num_midis; dev++) - { - if (midi_devs[dev] && midi_devs[dev]->converter != NULL) - { - synth_devs[max_synthdev++] = midi_devs[dev]->converter; - } - } - - for (dev = 0; dev < max_synthdev; dev++) - { - int chn; - - synth_devs[dev]->sysex_ptr = 0; - synth_devs[dev]->emulation = 0; - - for (chn = 0; chn < 16; chn++) - { - synth_devs[dev]->chn_info[chn].pgm_num = 0; - reset_controllers(dev, - synth_devs[dev]->chn_info[chn].controllers,0); - synth_devs[dev]->chn_info[chn].bender_value = (1 << 7); /* Neutral */ - synth_devs[dev]->chn_info[chn].bender_range = 200; - } - } - max_mididev = 0; - seq_mode = SEQ_2; -} - -int sequencer_open(int dev, struct file *file) -{ - int retval, mode, i; - int level, tmp; - - if (!sequencer_ok) - sequencer_init(); - - level = ((dev & 0x0f) == SND_DEV_SEQ2) ? 2 : 1; - - dev = dev >> 4; - mode = translate_mode(file); - - if (!sequencer_ok) - { -/* printk("Sound card: sequencer not initialized\n");*/ - return -ENXIO; - } - if (dev) /* Patch manager device (obsolete) */ - return -ENXIO; - - if(synth_devs[dev] == NULL) - request_module("synth0"); - - if (mode == OPEN_READ) - { - if (!num_midis) - { - /*printk("Sequencer: No MIDI devices. Input not possible\n");*/ - sequencer_busy = 0; - return -ENXIO; - } - } - if (sequencer_busy) - { - return -EBUSY; - } - sequencer_busy = 1; - obsolete_api_used = 0; - - max_mididev = num_midis; - max_synthdev = num_synths; - pre_event_timeout = MAX_SCHEDULE_TIMEOUT; - seq_mode = SEQ_1; - - if (pending_timer != -1) - { - tmr_no = pending_timer; - pending_timer = -1; - } - if (tmr_no == -1) /* Not selected yet */ - { - int i, best; - - best = -1; - for (i = 0; i < num_sound_timers; i++) - if (sound_timer_devs[i] && sound_timer_devs[i]->priority > best) - { - tmr_no = i; - best = sound_timer_devs[i]->priority; - } - if (tmr_no == -1) /* Should not be */ - tmr_no = 0; - } - tmr = sound_timer_devs[tmr_no]; - - if (level == 2) - { - if (tmr == NULL) - { - /*printk("sequencer: No timer for level 2\n");*/ - sequencer_busy = 0; - return -ENXIO; - } - setup_mode2(); - } - if (!max_synthdev && !max_mididev) - { - sequencer_busy=0; - return -ENXIO; - } - - synth_open_mask = 0; - - for (i = 0; i < max_mididev; i++) - { - midi_opened[i] = 0; - midi_written[i] = 0; - } - - for (i = 0; i < max_synthdev; i++) - { - if (synth_devs[i]==NULL) - continue; - - if (!try_module_get(synth_devs[i]->owner)) - continue; - - if ((tmp = synth_devs[i]->open(i, mode)) < 0) - { - printk(KERN_WARNING "Sequencer: Warning! Cannot open synth device #%d (%d)\n", i, tmp); - if (synth_devs[i]->midi_dev) - printk(KERN_WARNING "(Maps to MIDI dev #%d)\n", synth_devs[i]->midi_dev); - } - else - { - synth_open_mask |= (1 << i); - if (synth_devs[i]->midi_dev) - midi_opened[synth_devs[i]->midi_dev] = 1; - } - } - - seq_time = jiffies; - - prev_input_time = 0; - prev_event_time = 0; - - if (seq_mode == SEQ_1 && (mode == OPEN_READ || mode == OPEN_READWRITE)) - { - /* - * Initialize midi input devices - */ - - for (i = 0; i < max_mididev; i++) - if (!midi_opened[i] && midi_devs[i]) - { - if (!try_module_get(midi_devs[i]->owner)) - continue; - - if ((retval = midi_devs[i]->open(i, mode, - sequencer_midi_input, sequencer_midi_output)) >= 0) - { - midi_opened[i] = 1; - } - } - } - - if (seq_mode == SEQ_2) { - if (try_module_get(tmr->owner)) - tmr->open(tmr_no, seq_mode); - } - - init_waitqueue_head(&seq_sleeper); - init_waitqueue_head(&midi_sleeper); - output_threshold = SEQ_MAX_QUEUE / 2; - - return 0; -} - -static void seq_drain_midi_queues(void) -{ - int i, n; - - /* - * Give the Midi drivers time to drain their output queues - */ - - n = 1; - - while (!signal_pending(current) && n) - { - n = 0; - - for (i = 0; i < max_mididev; i++) - if (midi_opened[i] && midi_written[i]) - if (midi_devs[i]->buffer_status != NULL) - if (midi_devs[i]->buffer_status(i)) - n++; - - /* - * Let's have a delay - */ - - if (n) - oss_broken_sleep_on(&seq_sleeper, HZ/10); - } -} - -void sequencer_release(int dev, struct file *file) -{ - int i; - int mode = translate_mode(file); - - dev = dev >> 4; - - /* - * Wait until the queue is empty (if we don't have nonblock) - */ - - if (mode != OPEN_READ && !(file->f_flags & O_NONBLOCK)) - { - while (!signal_pending(current) && qlen > 0) - { - seq_sync(); - oss_broken_sleep_on(&seq_sleeper, 3*HZ); - /* Extra delay */ - } - } - - if (mode != OPEN_READ) - seq_drain_midi_queues(); /* - * Ensure the output queues are empty - */ - seq_reset(); - if (mode != OPEN_READ) - seq_drain_midi_queues(); /* - * Flush the all notes off messages - */ - - for (i = 0; i < max_synthdev; i++) - { - if (synth_open_mask & (1 << i)) /* - * Actually opened - */ - if (synth_devs[i]) - { - synth_devs[i]->close(i); - - module_put(synth_devs[i]->owner); - - if (synth_devs[i]->midi_dev) - midi_opened[synth_devs[i]->midi_dev] = 0; - } - } - - for (i = 0; i < max_mididev; i++) - { - if (midi_opened[i]) { - midi_devs[i]->close(i); - module_put(midi_devs[i]->owner); - } - } - - if (seq_mode == SEQ_2) { - tmr->close(tmr_no); - module_put(tmr->owner); - } - - if (obsolete_api_used) - printk(KERN_WARNING "/dev/music: Obsolete (4 byte) API was used by %s\n", current->comm); - sequencer_busy = 0; -} - -static int seq_sync(void) -{ - if (qlen && !seq_playing && !signal_pending(current)) - seq_startplay(); - - if (qlen > 0) - oss_broken_sleep_on(&seq_sleeper, HZ); - return qlen; -} - -static void midi_outc(int dev, unsigned char data) -{ - /* - * NOTE! Calls sleep(). Don't call this from interrupt. - */ - - int n; - unsigned long flags; - - /* - * This routine sends one byte to the Midi channel. - * If the output FIFO is full, it waits until there - * is space in the queue - */ - - n = 3 * HZ; /* Timeout */ - - spin_lock_irqsave(&lock,flags); - while (n && !midi_devs[dev]->outputc(dev, data)) { - oss_broken_sleep_on(&seq_sleeper, HZ/25); - n--; - } - spin_unlock_irqrestore(&lock,flags); -} - -static void seq_reset(void) -{ - /* - * NOTE! Calls sleep(). Don't call this from interrupt. - */ - - int i; - int chn; - unsigned long flags; - - sound_stop_timer(); - - seq_time = jiffies; - prev_input_time = 0; - prev_event_time = 0; - - qlen = qhead = qtail = 0; - iqlen = iqhead = iqtail = 0; - - for (i = 0; i < max_synthdev; i++) - if (synth_open_mask & (1 << i)) - if (synth_devs[i]) - synth_devs[i]->reset(i); - - if (seq_mode == SEQ_2) - { - for (chn = 0; chn < 16; chn++) - for (i = 0; i < max_synthdev; i++) - if (synth_open_mask & (1 << i)) - if (synth_devs[i]) - { - synth_devs[i]->controller(i, chn, 123, 0); /* All notes off */ - synth_devs[i]->controller(i, chn, 121, 0); /* Reset all ctl */ - synth_devs[i]->bender(i, chn, 1 << 13); /* Bender off */ - } - } - else /* seq_mode == SEQ_1 */ - { - for (i = 0; i < max_mididev; i++) - if (midi_written[i]) /* - * Midi used. Some notes may still be playing - */ - { - /* - * Sending just a ACTIVE SENSING message should be enough to stop all - * playing notes. Since there are devices not recognizing the - * active sensing, we have to send some all notes off messages also. - */ - midi_outc(i, 0xfe); - - for (chn = 0; chn < 16; chn++) - { - midi_outc(i, (unsigned char) (0xb0 + (chn & 0x0f))); /* control change */ - midi_outc(i, 0x7b); /* All notes off */ - midi_outc(i, 0); /* Dummy parameter */ - } - - midi_devs[i]->close(i); - - midi_written[i] = 0; - midi_opened[i] = 0; - } - } - - seq_playing = 0; - - spin_lock_irqsave(&lock,flags); - - if (waitqueue_active(&seq_sleeper)) { - /* printk( "Sequencer Warning: Unexpected sleeping process - Waking up\n"); */ - wake_up(&seq_sleeper); - } - spin_unlock_irqrestore(&lock,flags); -} - -static void seq_panic(void) -{ - /* - * This routine is called by the application in case the user - * wants to reset the system to the default state. - */ - - seq_reset(); - - /* - * Since some of the devices don't recognize the active sensing and - * all notes off messages, we have to shut all notes manually. - * - * TO BE IMPLEMENTED LATER - */ - - /* - * Also return the controllers to their default states - */ -} - -int sequencer_ioctl(int dev, struct file *file, unsigned int cmd, void __user *arg) -{ - int midi_dev, orig_dev, val, err; - int mode = translate_mode(file); - struct synth_info inf; - struct seq_event_rec event_rec; - int __user *p = arg; - - orig_dev = dev = dev >> 4; - - switch (cmd) - { - case SNDCTL_TMR_TIMEBASE: - case SNDCTL_TMR_TEMPO: - case SNDCTL_TMR_START: - case SNDCTL_TMR_STOP: - case SNDCTL_TMR_CONTINUE: - case SNDCTL_TMR_METRONOME: - case SNDCTL_TMR_SOURCE: - if (seq_mode != SEQ_2) - return -EINVAL; - return tmr->ioctl(tmr_no, cmd, arg); - - case SNDCTL_TMR_SELECT: - if (seq_mode != SEQ_2) - return -EINVAL; - if (get_user(pending_timer, p)) - return -EFAULT; - if (pending_timer < 0 || pending_timer >= num_sound_timers || sound_timer_devs[pending_timer] == NULL) - { - pending_timer = -1; - return -EINVAL; - } - val = pending_timer; - break; - - case SNDCTL_SEQ_PANIC: - seq_panic(); - return -EINVAL; - - case SNDCTL_SEQ_SYNC: - if (mode == OPEN_READ) - return 0; - while (qlen > 0 && !signal_pending(current)) - seq_sync(); - return qlen ? -EINTR : 0; - - case SNDCTL_SEQ_RESET: - seq_reset(); - return 0; - - case SNDCTL_SEQ_TESTMIDI: - if (__get_user(midi_dev, p)) - return -EFAULT; - if (midi_dev < 0 || midi_dev >= max_mididev || !midi_devs[midi_dev]) - return -ENXIO; - - if (!midi_opened[midi_dev] && - (err = midi_devs[midi_dev]->open(midi_dev, mode, sequencer_midi_input, - sequencer_midi_output)) < 0) - return err; - midi_opened[midi_dev] = 1; - return 0; - - case SNDCTL_SEQ_GETINCOUNT: - if (mode == OPEN_WRITE) - return 0; - val = iqlen; - break; - - case SNDCTL_SEQ_GETOUTCOUNT: - if (mode == OPEN_READ) - return 0; - val = SEQ_MAX_QUEUE - qlen; - break; - - case SNDCTL_SEQ_GETTIME: - if (seq_mode == SEQ_2) - return tmr->ioctl(tmr_no, cmd, arg); - val = jiffies - seq_time; - break; - - case SNDCTL_SEQ_CTRLRATE: - /* - * If *arg == 0, just return the current rate - */ - if (seq_mode == SEQ_2) - return tmr->ioctl(tmr_no, cmd, arg); - - if (get_user(val, p)) - return -EFAULT; - if (val != 0) - return -EINVAL; - val = HZ; - break; - - case SNDCTL_SEQ_RESETSAMPLES: - case SNDCTL_SYNTH_REMOVESAMPLE: - case SNDCTL_SYNTH_CONTROL: - if (get_user(dev, p)) - return -EFAULT; - if (dev < 0 || dev >= num_synths || synth_devs[dev] == NULL) - return -ENXIO; - if (!(synth_open_mask & (1 << dev)) && !orig_dev) - return -EBUSY; - return synth_devs[dev]->ioctl(dev, cmd, arg); - - case SNDCTL_SEQ_NRSYNTHS: - val = max_synthdev; - break; - - case SNDCTL_SEQ_NRMIDIS: - val = max_mididev; - break; - - case SNDCTL_SYNTH_MEMAVL: - if (get_user(dev, p)) - return -EFAULT; - if (dev < 0 || dev >= num_synths || synth_devs[dev] == NULL) - return -ENXIO; - if (!(synth_open_mask & (1 << dev)) && !orig_dev) - return -EBUSY; - val = synth_devs[dev]->ioctl(dev, cmd, arg); - break; - - case SNDCTL_FM_4OP_ENABLE: - if (get_user(dev, p)) - return -EFAULT; - if (dev < 0 || dev >= num_synths || synth_devs[dev] == NULL) - return -ENXIO; - if (!(synth_open_mask & (1 << dev))) - return -ENXIO; - synth_devs[dev]->ioctl(dev, cmd, arg); - return 0; - - case SNDCTL_SYNTH_INFO: - if (get_user(dev, &((struct synth_info __user *)arg)->device)) - return -EFAULT; - if (dev < 0 || dev >= max_synthdev) - return -ENXIO; - if (!(synth_open_mask & (1 << dev)) && !orig_dev) - return -EBUSY; - return synth_devs[dev]->ioctl(dev, cmd, arg); - - /* Like SYNTH_INFO but returns ID in the name field */ - case SNDCTL_SYNTH_ID: - if (get_user(dev, &((struct synth_info __user *)arg)->device)) - return -EFAULT; - if (dev < 0 || dev >= max_synthdev) - return -ENXIO; - if (!(synth_open_mask & (1 << dev)) && !orig_dev) - return -EBUSY; - memcpy(&inf, synth_devs[dev]->info, sizeof(inf)); - strlcpy(inf.name, synth_devs[dev]->id, sizeof(inf.name)); - inf.device = dev; - return copy_to_user(arg, &inf, sizeof(inf))?-EFAULT:0; - - case SNDCTL_SEQ_OUTOFBAND: - if (copy_from_user(&event_rec, arg, sizeof(event_rec))) - return -EFAULT; - play_event(event_rec.arr); - return 0; - - case SNDCTL_MIDI_INFO: - if (get_user(dev, &((struct midi_info __user *)arg)->device)) - return -EFAULT; - if (dev < 0 || dev >= max_mididev || !midi_devs[dev]) - return -ENXIO; - midi_devs[dev]->info.device = dev; - return copy_to_user(arg, &midi_devs[dev]->info, sizeof(struct midi_info))?-EFAULT:0; - - case SNDCTL_SEQ_THRESHOLD: - if (get_user(val, p)) - return -EFAULT; - if (val < 1) - val = 1; - if (val >= SEQ_MAX_QUEUE) - val = SEQ_MAX_QUEUE - 1; - output_threshold = val; - return 0; - - case SNDCTL_MIDI_PRETIME: - if (get_user(val, p)) - return -EFAULT; - if (val < 0) - val = 0; - val = (HZ * val) / 10; - pre_event_timeout = val; - break; - - default: - if (mode == OPEN_READ) - return -EIO; - if (!synth_devs[0]) - return -ENXIO; - if (!(synth_open_mask & (1 << 0))) - return -ENXIO; - if (!synth_devs[0]->ioctl) - return -EINVAL; - return synth_devs[0]->ioctl(0, cmd, arg); - } - return put_user(val, p); -} - -/* No kernel lock - we're using the global irq lock here */ -unsigned int sequencer_poll(int dev, struct file *file, poll_table * wait) -{ - unsigned long flags; - unsigned int mask = 0; - - dev = dev >> 4; - - spin_lock_irqsave(&lock,flags); - /* input */ - poll_wait(file, &midi_sleeper, wait); - if (iqlen) - mask |= POLLIN | POLLRDNORM; - - /* output */ - poll_wait(file, &seq_sleeper, wait); - if ((SEQ_MAX_QUEUE - qlen) >= output_threshold) - mask |= POLLOUT | POLLWRNORM; - spin_unlock_irqrestore(&lock,flags); - return mask; -} - - -void sequencer_timer(unsigned long dummy) -{ - seq_startplay(); -} -EXPORT_SYMBOL(sequencer_timer); - -int note_to_freq(int note_num) -{ - - /* - * This routine converts a midi note to a frequency (multiplied by 1000) - */ - - int note, octave, note_freq; - static int notes[] = - { - 261632, 277189, 293671, 311132, 329632, 349232, - 369998, 391998, 415306, 440000, 466162, 493880 - }; - -#define BASE_OCTAVE 5 - - octave = note_num / 12; - note = note_num % 12; - - note_freq = notes[note]; - - if (octave < BASE_OCTAVE) - note_freq >>= (BASE_OCTAVE - octave); - else if (octave > BASE_OCTAVE) - note_freq <<= (octave - BASE_OCTAVE); - - /* - * note_freq >>= 1; - */ - - return note_freq; -} -EXPORT_SYMBOL(note_to_freq); - -unsigned long compute_finetune(unsigned long base_freq, int bend, int range, - int vibrato_cents) -{ - unsigned long amount; - int negative, semitones, cents, multiplier = 1; - - if (!bend) - return base_freq; - if (!range) - return base_freq; - - if (!base_freq) - return base_freq; - - if (range >= 8192) - range = 8192; - - bend = bend * range / 8192; /* Convert to cents */ - bend += vibrato_cents; - - if (!bend) - return base_freq; - - negative = bend < 0 ? 1 : 0; - - if (bend < 0) - bend *= -1; - if (bend > range) - bend = range; - - /* - if (bend > 2399) - bend = 2399; - */ - while (bend > 2399) - { - multiplier *= 4; - bend -= 2400; - } - - semitones = bend / 100; - cents = bend % 100; - - amount = (int) (semitone_tuning[semitones] * multiplier * cent_tuning[cents]) / 10000; - - if (negative) - return (base_freq * 10000) / amount; /* Bend down */ - else - return (base_freq * amount) / 10000; /* Bend up */ -} -EXPORT_SYMBOL(compute_finetune); - -void sequencer_init(void) -{ - if (sequencer_ok) - return; - queue = vmalloc(SEQ_MAX_QUEUE * EV_SZ); - if (queue == NULL) - { - printk(KERN_ERR "sequencer: Can't allocate memory for sequencer output queue\n"); - return; - } - iqueue = vmalloc(SEQ_MAX_QUEUE * IEV_SZ); - if (iqueue == NULL) - { - printk(KERN_ERR "sequencer: Can't allocate memory for sequencer input queue\n"); - vfree(queue); - return; - } - sequencer_ok = 1; -} -EXPORT_SYMBOL(sequencer_init); - -void sequencer_unload(void) -{ - vfree(queue); - vfree(iqueue); - queue = iqueue = NULL; -} diff --git a/sound/oss/sleep.h b/sound/oss/sleep.h deleted file mode 100644 index a20fc925a5ce..000000000000 --- a/sound/oss/sleep.h +++ /dev/null @@ -1,18 +0,0 @@ -#include - -/* - * Do not use. This is a replacement for the old - * "interruptible_sleep_on_timeout" function that has been - * deprecated for ages. All users should instead try to use - * wait_event_interruptible_timeout. - */ - -static inline long -oss_broken_sleep_on(wait_queue_head_t *q, long timeout) -{ - DEFINE_WAIT(wait); - prepare_to_wait(q, &wait, TASK_INTERRUPTIBLE); - timeout = schedule_timeout(timeout); - finish_wait(q, &wait); - return timeout; -} diff --git a/sound/oss/sound_calls.h b/sound/oss/sound_calls.h deleted file mode 100644 index 87d8ad4a0340..000000000000 --- a/sound/oss/sound_calls.h +++ /dev/null @@ -1,87 +0,0 @@ -/* - * DMA buffer calls - */ - -int DMAbuf_open(int dev, int mode); -int DMAbuf_release(int dev, int mode); -int DMAbuf_getwrbuffer(int dev, char **buf, int *size, int dontblock); -int DMAbuf_getrdbuffer(int dev, char **buf, int *len, int dontblock); -int DMAbuf_rmchars(int dev, int buff_no, int c); -int DMAbuf_start_output(int dev, int buff_no, int l); -int DMAbuf_move_wrpointer(int dev, int l); -/* int DMAbuf_ioctl(int dev, unsigned int cmd, void __user *arg, int local); */ -void DMAbuf_init(int dev, int dma1, int dma2); -void DMAbuf_deinit(int dev); -int DMAbuf_start_dma (int dev, unsigned long physaddr, int count, int dma_mode); -void DMAbuf_inputintr(int dev); -void DMAbuf_outputintr(int dev, int underflow_flag); -struct dma_buffparms; -int DMAbuf_space_in_queue (int dev); -int DMAbuf_activate_recording (int dev, struct dma_buffparms *dmap); -int DMAbuf_get_buffer_pointer (int dev, struct dma_buffparms *dmap, int direction); -void DMAbuf_launch_output(int dev, struct dma_buffparms *dmap); -unsigned int DMAbuf_poll(struct file *file, int dev, poll_table *wait); -void DMAbuf_start_devices(unsigned int devmask); -void DMAbuf_reset (int dev); -int DMAbuf_sync (int dev); - -/* - * System calls for /dev/dsp and /dev/audio (audio.c) - */ - -int audio_read (int dev, struct file *file, char __user *buf, int count); -int audio_write (int dev, struct file *file, const char __user *buf, int count); -int audio_open (int dev, struct file *file); -void audio_release (int dev, struct file *file); -int audio_ioctl (int dev, struct file *file, - unsigned int cmd, void __user *arg); -void audio_init_devices (void); -void reorganize_buffers (int dev, struct dma_buffparms *dmap, int recording); - -/* - * System calls for the /dev/sequencer - */ - -int sequencer_read (int dev, struct file *file, char __user *buf, int count); -int sequencer_write (int dev, struct file *file, const char __user *buf, int count); -int sequencer_open (int dev, struct file *file); -void sequencer_release (int dev, struct file *file); -int sequencer_ioctl (int dev, struct file *file, unsigned int cmd, void __user *arg); -unsigned int sequencer_poll(int dev, struct file *file, poll_table * wait); - -void sequencer_init (void); -void sequencer_unload (void); -void sequencer_timer(unsigned long dummy); -int note_to_freq(int note_num); -unsigned long compute_finetune(unsigned long base_freq, int bend, int range, - int vibrato_bend); -void seq_input_event(unsigned char *event, int len); -void seq_copy_to_input (unsigned char *event, int len); - -/* - * System calls for the /dev/midi - */ - -int MIDIbuf_read (int dev, struct file *file, char __user *buf, int count); -int MIDIbuf_write (int dev, struct file *file, const char __user *buf, int count); -int MIDIbuf_open (int dev, struct file *file); -void MIDIbuf_release (int dev, struct file *file); -int MIDIbuf_ioctl (int dev, struct file *file, unsigned int cmd, void __user *arg); -unsigned int MIDIbuf_poll(int dev, struct file *file, poll_table * wait); -int MIDIbuf_avail(int dev); - -void MIDIbuf_bytes_received(int dev, unsigned char *buf, int count); - - -/* From soundcard.c */ -void request_sound_timer (int count); -void sound_stop_timer(void); -void conf_printf(char *name, struct address_info *hw_config); -void conf_printf2(char *name, int base, int irq, int dma, int dma2); - -/* From sound_timer.c */ -void sound_timer_interrupt(void); -void sound_timer_syncinterval(unsigned int new_usecs); - -/* From midi_synth.c */ -void do_midi_msg (int synthno, unsigned char *msg, int mlen); diff --git a/sound/oss/sound_config.h b/sound/oss/sound_config.h deleted file mode 100644 index 5253b0a70437..000000000000 --- a/sound/oss/sound_config.h +++ /dev/null @@ -1,144 +0,0 @@ -/* sound_config.h - * - * A driver for sound cards, misc. configuration parameters. - */ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ - - -#ifndef _SOUND_CONFIG_H_ -#define _SOUND_CONFIG_H_ - -#include -#include -#include - -#include "os.h" -#include "soundvers.h" - - -#ifndef SND_DEFAULT_ENABLE -#define SND_DEFAULT_ENABLE 1 -#endif - -#ifndef MAX_REALTIME_FACTOR -#define MAX_REALTIME_FACTOR 4 -#endif - -/* - * Use always 64k buffer size. There is no reason to use shorter. - */ -#undef DSP_BUFFSIZE -#define DSP_BUFFSIZE (64*1024) - -#ifndef DSP_BUFFCOUNT -#define DSP_BUFFCOUNT 1 /* 1 is recommended. */ -#endif - -#define FM_MONO 0x388 /* This is the I/O address used by AdLib */ - -#ifndef CONFIG_PAS_BASE -#define CONFIG_PAS_BASE 0x388 -#endif - -/* SEQ_MAX_QUEUE is the maximum number of sequencer events buffered by the - driver. (There is no need to alter this) */ -#define SEQ_MAX_QUEUE 1024 - -#define SBFM_MAXINSTR (256) /* Size of the FM Instrument bank */ -/* 128 instruments for general MIDI setup and 16 unassigned */ - -#define SND_NDEVS 256 /* Number of supported devices */ - -#define DSP_DEFAULT_SPEED 8000 - -#define MAX_AUDIO_DEV 5 -#define MAX_MIXER_DEV 5 -#define MAX_SYNTH_DEV 5 -#define MAX_MIDI_DEV 6 -#define MAX_TIMER_DEV 4 - -struct address_info { - int io_base; - int irq; - int dma; - int dma2; - int always_detect; /* 1=Trust me, it's there */ - char *name; - int driver_use_1; /* Driver defined field 1 */ - int driver_use_2; /* Driver defined field 2 */ - int *osp; /* OS specific info */ - int card_subtype; /* Driver specific. Usually 0 */ - void *memptr; /* Module memory chainer */ - int slots[6]; /* To remember driver slot ids */ -}; - -#define SYNTH_MAX_VOICES 32 - -struct voice_alloc_info { - int max_voice; - int used_voices; - int ptr; /* For device specific use */ - unsigned short map[SYNTH_MAX_VOICES]; /* (ch << 8) | (note+1) */ - int timestamp; - int alloc_times[SYNTH_MAX_VOICES]; - }; - -struct channel_info { - int pgm_num; - int bender_value; - int bender_range; - unsigned char controllers[128]; - }; - -/* - * Process wakeup reasons - */ -#define WK_NONE 0x00 -#define WK_WAKEUP 0x01 -#define WK_TIMEOUT 0x02 -#define WK_SIGNAL 0x04 -#define WK_SLEEP 0x08 -#define WK_SELECT 0x10 -#define WK_ABORT 0x20 - -#define OPEN_READ PCM_ENABLE_INPUT -#define OPEN_WRITE PCM_ENABLE_OUTPUT -#define OPEN_READWRITE (OPEN_READ|OPEN_WRITE) - -static inline int translate_mode(struct file *file) -{ - if (OPEN_READ == (__force int)FMODE_READ && - OPEN_WRITE == (__force int)FMODE_WRITE) - return (__force int)(file->f_mode & (FMODE_READ | FMODE_WRITE)); - else - return ((file->f_mode & FMODE_READ) ? OPEN_READ : 0) | - ((file->f_mode & FMODE_WRITE) ? OPEN_WRITE : 0); -} - -#include "sound_calls.h" -#include "dev_table.h" - -#ifndef DDB -#define DDB(x) do {} while (0) -#endif - -#ifndef MDB -#ifdef MODULE -#define MDB(x) x -#else -#define MDB(x) -#endif -#endif - -#define TIMER_ARMED 121234 -#define TIMER_NOT_ARMED 1 - -#define MAX_MEM_BLOCKS 1024 - -#endif diff --git a/sound/oss/sound_firmware.h b/sound/oss/sound_firmware.h deleted file mode 100644 index 2be465277ba0..000000000000 --- a/sound/oss/sound_firmware.h +++ /dev/null @@ -1,29 +0,0 @@ -#include - -/** - * mod_firmware_load - load sound driver firmware - * @fn: filename - * @fp: return for the buffer. - * - * Load the firmware for a sound module (up to 128K) into a buffer. - * The buffer is returned in *fp. It is allocated with vmalloc so is - * virtually linear and not DMAable. The caller should free it with - * vfree when finished. - * - * The length of the buffer is returned on a successful load, the - * value zero on a failure. - * - * Caution: This API is not recommended. Firmware should be loaded via - * request_firmware. - */ -static inline int mod_firmware_load(const char *fn, char **fp) -{ - loff_t size; - int err; - - err = kernel_read_file_from_path(fn, (void **)fp, &size, - 131072, READING_FIRMWARE); - if (err < 0) - return 0; - return size; -} diff --git a/sound/oss/sound_timer.c b/sound/oss/sound_timer.c deleted file mode 100644 index 3a444a6f10eb..000000000000 --- a/sound/oss/sound_timer.c +++ /dev/null @@ -1,327 +0,0 @@ -/* - * sound/oss/sound_timer.c - */ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ -/* - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - */ -#include -#include - -#include "sound_config.h" - -static volatile int initialized, opened, tmr_running; -static volatile unsigned int tmr_offs, tmr_ctr; -static volatile unsigned long ticks_offs; -static volatile int curr_tempo, curr_timebase; -static volatile unsigned long curr_ticks; -static volatile unsigned long next_event_time; -static unsigned long prev_event_time; -static volatile unsigned long usecs_per_tmr; /* Length of the current interval */ - -static struct sound_lowlev_timer *tmr; -static DEFINE_SPINLOCK(lock); - -static unsigned long tmr2ticks(int tmr_value) -{ - /* - * Convert timer ticks to MIDI ticks - */ - - unsigned long tmp; - unsigned long scale; - - tmp = tmr_value * usecs_per_tmr; /* Convert to usecs */ - scale = (60 * 1000000) / (curr_tempo * curr_timebase); /* usecs per MIDI tick */ - return (tmp + (scale / 2)) / scale; -} - -void reprogram_timer(void) -{ - unsigned long usecs_per_tick; - - /* - * The user is changing the timer rate before setting a timer - * slap, bad bad not allowed. - */ - - if(!tmr) - return; - - usecs_per_tick = (60 * 1000000) / (curr_tempo * curr_timebase); - - /* - * Don't kill the system by setting too high timer rate - */ - if (usecs_per_tick < 2000) - usecs_per_tick = 2000; - - usecs_per_tmr = tmr->tmr_start(tmr->dev, usecs_per_tick); -} - -void sound_timer_syncinterval(unsigned int new_usecs) -{ - /* - * This routine is called by the hardware level if - * the clock frequency has changed for some reason. - */ - tmr_offs = tmr_ctr; - ticks_offs += tmr2ticks(tmr_ctr); - tmr_ctr = 0; - usecs_per_tmr = new_usecs; -} -EXPORT_SYMBOL(sound_timer_syncinterval); - -static void tmr_reset(void) -{ - unsigned long flags; - - spin_lock_irqsave(&lock,flags); - tmr_offs = 0; - ticks_offs = 0; - tmr_ctr = 0; - next_event_time = (unsigned long) -1; - prev_event_time = 0; - curr_ticks = 0; - spin_unlock_irqrestore(&lock,flags); -} - -static int timer_open(int dev, int mode) -{ - if (opened) - return -EBUSY; - tmr_reset(); - curr_tempo = 60; - curr_timebase = 100; - opened = 1; - reprogram_timer(); - return 0; -} - -static void timer_close(int dev) -{ - opened = tmr_running = 0; - tmr->tmr_disable(tmr->dev); -} - -static int timer_event(int dev, unsigned char *event) -{ - unsigned char cmd = event[1]; - unsigned long parm = *(int *) &event[4]; - - switch (cmd) - { - case TMR_WAIT_REL: - parm += prev_event_time; - case TMR_WAIT_ABS: - if (parm > 0) - { - long time; - - if (parm <= curr_ticks) /* It's the time */ - return TIMER_NOT_ARMED; - time = parm; - next_event_time = prev_event_time = time; - return TIMER_ARMED; - } - break; - - case TMR_START: - tmr_reset(); - tmr_running = 1; - reprogram_timer(); - break; - - case TMR_STOP: - tmr_running = 0; - break; - - case TMR_CONTINUE: - tmr_running = 1; - reprogram_timer(); - break; - - case TMR_TEMPO: - if (parm) - { - if (parm < 8) - parm = 8; - if (parm > 250) - parm = 250; - tmr_offs = tmr_ctr; - ticks_offs += tmr2ticks(tmr_ctr); - tmr_ctr = 0; - curr_tempo = parm; - reprogram_timer(); - } - break; - - case TMR_ECHO: - seq_copy_to_input(event, 8); - break; - - default:; - } - return TIMER_NOT_ARMED; -} - -static unsigned long timer_get_time(int dev) -{ - if (!opened) - return 0; - return curr_ticks; -} - -static int timer_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - int __user *p = arg; - int val; - - switch (cmd) - { - case SNDCTL_TMR_SOURCE: - val = TMR_INTERNAL; - break; - - case SNDCTL_TMR_START: - tmr_reset(); - tmr_running = 1; - return 0; - - case SNDCTL_TMR_STOP: - tmr_running = 0; - return 0; - - case SNDCTL_TMR_CONTINUE: - tmr_running = 1; - return 0; - - case SNDCTL_TMR_TIMEBASE: - if (get_user(val, p)) - return -EFAULT; - if (val) - { - if (val < 1) - val = 1; - if (val > 1000) - val = 1000; - curr_timebase = val; - } - val = curr_timebase; - break; - - case SNDCTL_TMR_TEMPO: - if (get_user(val, p)) - return -EFAULT; - if (val) - { - if (val < 8) - val = 8; - if (val > 250) - val = 250; - tmr_offs = tmr_ctr; - ticks_offs += tmr2ticks(tmr_ctr); - tmr_ctr = 0; - curr_tempo = val; - reprogram_timer(); - } - val = curr_tempo; - break; - - case SNDCTL_SEQ_CTRLRATE: - if (get_user(val, p)) - return -EFAULT; - if (val != 0) /* Can't change */ - return -EINVAL; - val = ((curr_tempo * curr_timebase) + 30) / 60; - break; - - case SNDCTL_SEQ_GETTIME: - val = curr_ticks; - break; - - case SNDCTL_TMR_METRONOME: - default: - return -EINVAL; - } - return put_user(val, p); -} - -static void timer_arm(int dev, long time) -{ - if (time < 0) - time = curr_ticks + 1; - else if (time <= curr_ticks) /* It's the time */ - return; - - next_event_time = prev_event_time = time; - return; -} - -static struct sound_timer_operations sound_timer = -{ - .owner = THIS_MODULE, - .info = {"Sound Timer", 0}, - .priority = 1, /* Priority */ - .devlink = 0, /* Local device link */ - .open = timer_open, - .close = timer_close, - .event = timer_event, - .get_time = timer_get_time, - .ioctl = timer_ioctl, - .arm_timer = timer_arm -}; - -void sound_timer_interrupt(void) -{ - unsigned long flags; - - if (!opened) - return; - - tmr->tmr_restart(tmr->dev); - - if (!tmr_running) - return; - - spin_lock_irqsave(&lock,flags); - tmr_ctr++; - curr_ticks = ticks_offs + tmr2ticks(tmr_ctr); - - if (curr_ticks >= next_event_time) - { - next_event_time = (unsigned long) -1; - sequencer_timer(0); - } - spin_unlock_irqrestore(&lock,flags); -} -EXPORT_SYMBOL(sound_timer_interrupt); - -void sound_timer_init(struct sound_lowlev_timer *t, char *name) -{ - int n; - - if (initialized) - { - if (t->priority <= tmr->priority) - return; /* There is already a similar or better timer */ - tmr = t; - return; - } - initialized = 1; - tmr = t; - - n = sound_alloc_timerdev(); - if (n == -1) - n = 0; /* Overwrite the system timer */ - strlcpy(sound_timer.info.name, name, sizeof(sound_timer.info.name)); - sound_timer_devs[n] = &sound_timer; -} -EXPORT_SYMBOL(sound_timer_init); - diff --git a/sound/oss/soundcard.c b/sound/oss/soundcard.c deleted file mode 100644 index b70c7c8f9c5d..000000000000 --- a/sound/oss/soundcard.c +++ /dev/null @@ -1,733 +0,0 @@ -/* - * linux/sound/oss/soundcard.c - * - * Sound card driver for Linux - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * integrated sound_switch.c - * Stefan Reinauer : integrated /proc/sound (equals to /dev/sndstat, - * which should disappear in the near future) - * Eric Dumas : devfs support (22-Jan-98) with - * fixups by C. Scott Ananian - * Richard Gooch : moved common (non OSS-specific) devices to sound_core.c - * Rob Riggs : Added persistent DMA buffers support (1998/10/17) - * Christoph Hellwig : Some cleanup work (2000/03/01) - */ - - -#include "sound_config.h" -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* - * This ought to be moved into include/asm/dma.h - */ -#ifndef valid_dma -#define valid_dma(n) ((n) >= 0 && (n) < MAX_DMA_CHANNELS && (n) != 4) -#endif - -/* - * Table for permanently allocated memory (used when unloading the module) - */ -void * sound_mem_blocks[MAX_MEM_BLOCKS]; -static DEFINE_MUTEX(soundcard_mutex); -int sound_nblocks = 0; - -/* Persistent DMA buffers */ -#ifdef CONFIG_SOUND_DMAP -int sound_dmap_flag = 1; -#else -int sound_dmap_flag = 0; -#endif - -static char dma_alloc_map[MAX_DMA_CHANNELS]; - -#define DMA_MAP_UNAVAIL 0 -#define DMA_MAP_FREE 1 -#define DMA_MAP_BUSY 2 - - -unsigned long seq_time = 0; /* Time for /dev/sequencer */ -extern struct class *sound_class; - -/* - * Table for configurable mixer volume handling - */ -static mixer_vol_table mixer_vols[MAX_MIXER_DEV]; -static int num_mixer_volumes; - -int *load_mixer_volumes(char *name, int *levels, int present) -{ - int i, n; - - for (i = 0; i < num_mixer_volumes; i++) { - if (strncmp(name, mixer_vols[i].name, 32) == 0) { - if (present) - mixer_vols[i].num = i; - return mixer_vols[i].levels; - } - } - if (num_mixer_volumes >= MAX_MIXER_DEV) { - printk(KERN_ERR "Sound: Too many mixers (%s)\n", name); - return levels; - } - n = num_mixer_volumes++; - - strncpy(mixer_vols[n].name, name, 32); - - if (present) - mixer_vols[n].num = n; - else - mixer_vols[n].num = -1; - - for (i = 0; i < 32; i++) - mixer_vols[n].levels[i] = levels[i]; - return mixer_vols[n].levels; -} -EXPORT_SYMBOL(load_mixer_volumes); - -static int set_mixer_levels(void __user * arg) -{ - /* mixer_vol_table is 174 bytes, so IMHO no reason to not allocate it on the stack */ - mixer_vol_table buf; - - if (__copy_from_user(&buf, arg, sizeof(buf))) - return -EFAULT; - load_mixer_volumes(buf.name, buf.levels, 0); - if (__copy_to_user(arg, &buf, sizeof(buf))) - return -EFAULT; - return 0; -} - -static int get_mixer_levels(void __user * arg) -{ - int n; - - if (__get_user(n, (int __user *)(&(((mixer_vol_table __user *)arg)->num)))) - return -EFAULT; - if (n < 0 || n >= num_mixer_volumes) - return -EINVAL; - if (__copy_to_user(arg, &mixer_vols[n], sizeof(mixer_vol_table))) - return -EFAULT; - return 0; -} - -/* 4K page size but our output routines use some slack for overruns */ -#define PROC_BLOCK_SIZE (3*1024) - -static ssize_t sound_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) -{ - int dev = iminor(file_inode(file)); - int ret = -EINVAL; - - /* - * The OSS drivers aren't remotely happy without this locking, - * and unless someone fixes them when they are about to bite the - * big one anyway, we might as well bandage here.. - */ - - mutex_lock(&soundcard_mutex); - - switch (dev & 0x0f) { - case SND_DEV_DSP: - case SND_DEV_DSP16: - case SND_DEV_AUDIO: - ret = audio_read(dev, file, buf, count); - break; - - case SND_DEV_SEQ: - case SND_DEV_SEQ2: - ret = sequencer_read(dev, file, buf, count); - break; - - case SND_DEV_MIDIN: - ret = MIDIbuf_read(dev, file, buf, count); - } - mutex_unlock(&soundcard_mutex); - return ret; -} - -static ssize_t sound_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) -{ - int dev = iminor(file_inode(file)); - int ret = -EINVAL; - - mutex_lock(&soundcard_mutex); - switch (dev & 0x0f) { - case SND_DEV_SEQ: - case SND_DEV_SEQ2: - ret = sequencer_write(dev, file, buf, count); - break; - - case SND_DEV_DSP: - case SND_DEV_DSP16: - case SND_DEV_AUDIO: - ret = audio_write(dev, file, buf, count); - break; - - case SND_DEV_MIDIN: - ret = MIDIbuf_write(dev, file, buf, count); - break; - } - mutex_unlock(&soundcard_mutex); - return ret; -} - -static int sound_open(struct inode *inode, struct file *file) -{ - int dev = iminor(inode); - int retval; - - if ((dev >= SND_NDEVS) || (dev < 0)) { - printk(KERN_ERR "Invalid minor device %d\n", dev); - return -ENXIO; - } - mutex_lock(&soundcard_mutex); - switch (dev & 0x0f) { - case SND_DEV_CTL: - dev >>= 4; - if (dev >= 0 && dev < MAX_MIXER_DEV && mixer_devs[dev] == NULL) { - request_module("mixer%d", dev); - } - retval = -ENXIO; - if (dev && (dev >= num_mixers || mixer_devs[dev] == NULL)) - break; - - if (!try_module_get(mixer_devs[dev]->owner)) - break; - - retval = 0; - break; - - case SND_DEV_SEQ: - case SND_DEV_SEQ2: - retval = sequencer_open(dev, file); - break; - - case SND_DEV_MIDIN: - retval = MIDIbuf_open(dev, file); - break; - - case SND_DEV_DSP: - case SND_DEV_DSP16: - case SND_DEV_AUDIO: - retval = audio_open(dev, file); - break; - - default: - printk(KERN_ERR "Invalid minor device %d\n", dev); - retval = -ENXIO; - } - - mutex_unlock(&soundcard_mutex); - return retval; -} - -static int sound_release(struct inode *inode, struct file *file) -{ - int dev = iminor(inode); - - mutex_lock(&soundcard_mutex); - switch (dev & 0x0f) { - case SND_DEV_CTL: - module_put(mixer_devs[dev >> 4]->owner); - break; - - case SND_DEV_SEQ: - case SND_DEV_SEQ2: - sequencer_release(dev, file); - break; - - case SND_DEV_MIDIN: - MIDIbuf_release(dev, file); - break; - - case SND_DEV_DSP: - case SND_DEV_DSP16: - case SND_DEV_AUDIO: - audio_release(dev, file); - break; - - default: - printk(KERN_ERR "Sound error: Releasing unknown device 0x%02x\n", dev); - } - mutex_unlock(&soundcard_mutex); - - return 0; -} - -static int get_mixer_info(int dev, void __user *arg) -{ - mixer_info info; - memset(&info, 0, sizeof(info)); - strlcpy(info.id, mixer_devs[dev]->id, sizeof(info.id)); - strlcpy(info.name, mixer_devs[dev]->name, sizeof(info.name)); - info.modify_counter = mixer_devs[dev]->modify_counter; - if (__copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; - return 0; -} - -static int get_old_mixer_info(int dev, void __user *arg) -{ - _old_mixer_info info; - memset(&info, 0, sizeof(info)); - strlcpy(info.id, mixer_devs[dev]->id, sizeof(info.id)); - strlcpy(info.name, mixer_devs[dev]->name, sizeof(info.name)); - if (copy_to_user(arg, &info, sizeof(info))) - return -EFAULT; - return 0; -} - -static int sound_mixer_ioctl(int mixdev, unsigned int cmd, void __user *arg) -{ - if (mixdev < 0 || mixdev >= MAX_MIXER_DEV) - return -ENXIO; - /* Try to load the mixer... */ - if (mixer_devs[mixdev] == NULL) { - request_module("mixer%d", mixdev); - } - if (mixdev >= num_mixers || !mixer_devs[mixdev]) - return -ENXIO; - if (cmd == SOUND_MIXER_INFO) - return get_mixer_info(mixdev, arg); - if (cmd == SOUND_OLD_MIXER_INFO) - return get_old_mixer_info(mixdev, arg); - if (_SIOC_DIR(cmd) & _SIOC_WRITE) - mixer_devs[mixdev]->modify_counter++; - if (!mixer_devs[mixdev]->ioctl) - return -EINVAL; - return mixer_devs[mixdev]->ioctl(mixdev, cmd, arg); -} - -static long sound_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -{ - int len = 0, dtype; - int dev = iminor(file_inode(file)); - long ret = -EINVAL; - void __user *p = (void __user *)arg; - - if (_SIOC_DIR(cmd) != _SIOC_NONE && _SIOC_DIR(cmd) != 0) { - /* - * Have to validate the address given by the process. - */ - len = _SIOC_SIZE(cmd); - if (len < 1 || len > 65536 || !p) - return -EFAULT; - if (_SIOC_DIR(cmd) & _SIOC_WRITE) - if (!access_ok(VERIFY_READ, p, len)) - return -EFAULT; - if (_SIOC_DIR(cmd) & _SIOC_READ) - if (!access_ok(VERIFY_WRITE, p, len)) - return -EFAULT; - } - if (cmd == OSS_GETVERSION) - return __put_user(SOUND_VERSION, (int __user *)p); - - mutex_lock(&soundcard_mutex); - if (_IOC_TYPE(cmd) == 'M' && num_mixers > 0 && /* Mixer ioctl */ - (dev & 0x0f) != SND_DEV_CTL) { - dtype = dev & 0x0f; - switch (dtype) { - case SND_DEV_DSP: - case SND_DEV_DSP16: - case SND_DEV_AUDIO: - ret = sound_mixer_ioctl(audio_devs[dev >> 4]->mixer_dev, - cmd, p); - break; - default: - ret = sound_mixer_ioctl(dev >> 4, cmd, p); - break; - } - mutex_unlock(&soundcard_mutex); - return ret; - } - - switch (dev & 0x0f) { - case SND_DEV_CTL: - if (cmd == SOUND_MIXER_GETLEVELS) - ret = get_mixer_levels(p); - else if (cmd == SOUND_MIXER_SETLEVELS) - ret = set_mixer_levels(p); - else - ret = sound_mixer_ioctl(dev >> 4, cmd, p); - break; - - case SND_DEV_SEQ: - case SND_DEV_SEQ2: - ret = sequencer_ioctl(dev, file, cmd, p); - break; - - case SND_DEV_DSP: - case SND_DEV_DSP16: - case SND_DEV_AUDIO: - ret = audio_ioctl(dev, file, cmd, p); - break; - - case SND_DEV_MIDIN: - ret = MIDIbuf_ioctl(dev, file, cmd, p); - break; - - } - mutex_unlock(&soundcard_mutex); - return ret; -} - -static unsigned int sound_poll(struct file *file, poll_table * wait) -{ - struct inode *inode = file_inode(file); - int dev = iminor(inode); - - switch (dev & 0x0f) { - case SND_DEV_SEQ: - case SND_DEV_SEQ2: - return sequencer_poll(dev, file, wait); - - case SND_DEV_MIDIN: - return MIDIbuf_poll(dev, file, wait); - - case SND_DEV_DSP: - case SND_DEV_DSP16: - case SND_DEV_AUDIO: - return DMAbuf_poll(file, dev >> 4, wait); - } - return 0; -} - -static int sound_mmap(struct file *file, struct vm_area_struct *vma) -{ - int dev_class; - unsigned long size; - struct dma_buffparms *dmap = NULL; - int dev = iminor(file_inode(file)); - - dev_class = dev & 0x0f; - dev >>= 4; - - if (dev_class != SND_DEV_DSP && dev_class != SND_DEV_DSP16 && dev_class != SND_DEV_AUDIO) { - printk(KERN_ERR "Sound: mmap() not supported for other than audio devices\n"); - return -EINVAL; - } - mutex_lock(&soundcard_mutex); - if (vma->vm_flags & VM_WRITE) /* Map write and read/write to the output buf */ - dmap = audio_devs[dev]->dmap_out; - else if (vma->vm_flags & VM_READ) - dmap = audio_devs[dev]->dmap_in; - else { - printk(KERN_ERR "Sound: Undefined mmap() access\n"); - mutex_unlock(&soundcard_mutex); - return -EINVAL; - } - - if (dmap == NULL) { - printk(KERN_ERR "Sound: mmap() error. dmap == NULL\n"); - mutex_unlock(&soundcard_mutex); - return -EIO; - } - if (dmap->raw_buf == NULL) { - printk(KERN_ERR "Sound: mmap() called when raw_buf == NULL\n"); - mutex_unlock(&soundcard_mutex); - return -EIO; - } - if (dmap->mapping_flags) { - printk(KERN_ERR "Sound: mmap() called twice for the same DMA buffer\n"); - mutex_unlock(&soundcard_mutex); - return -EIO; - } - if (vma->vm_pgoff != 0) { - printk(KERN_ERR "Sound: mmap() offset must be 0.\n"); - mutex_unlock(&soundcard_mutex); - return -EINVAL; - } - size = vma->vm_end - vma->vm_start; - - if (size != dmap->bytes_in_use) { - printk(KERN_WARNING "Sound: mmap() size = %ld. Should be %d\n", size, dmap->bytes_in_use); - } - if (remap_pfn_range(vma, vma->vm_start, - virt_to_phys(dmap->raw_buf) >> PAGE_SHIFT, - vma->vm_end - vma->vm_start, vma->vm_page_prot)) { - mutex_unlock(&soundcard_mutex); - return -EAGAIN; - } - - dmap->mapping_flags |= DMA_MAP_MAPPED; - - if( audio_devs[dev]->d->mmap) - audio_devs[dev]->d->mmap(dev); - - memset(dmap->raw_buf, - dmap->neutral_byte, - dmap->bytes_in_use); - mutex_unlock(&soundcard_mutex); - return 0; -} - -const struct file_operations oss_sound_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = sound_read, - .write = sound_write, - .poll = sound_poll, - .unlocked_ioctl = sound_ioctl, - .mmap = sound_mmap, - .open = sound_open, - .release = sound_release, -}; - -/* - * Create the required special subdevices - */ - -static int create_special_devices(void) -{ - int seq1,seq2; - seq1=register_sound_special(&oss_sound_fops, 1); - if(seq1==-1) - goto bad; - seq2=register_sound_special(&oss_sound_fops, 8); - if(seq2!=-1) - return 0; - unregister_sound_special(1); -bad: - return -1; -} - - -static int dmabuf; -static int dmabug; - -module_param(dmabuf, int, 0444); -module_param(dmabug, int, 0444); - -/* additional minors for compatibility */ -struct oss_minor_dev { - unsigned short minor; - unsigned int enabled; -} dev_list[] = { - { SND_DEV_DSP16 }, - { SND_DEV_AUDIO }, -}; - -static int __init oss_init(void) -{ - int err; - int i, j; - -#ifdef CONFIG_PCI - if(dmabug) - isa_dma_bridge_buggy = dmabug; -#endif - - err = create_special_devices(); - if (err) { - printk(KERN_ERR "sound: driver already loaded/included in kernel\n"); - return err; - } - - /* Protecting the innocent */ - sound_dmap_flag = (dmabuf > 0 ? 1 : 0); - - for (i = 0; i < ARRAY_SIZE(dev_list); i++) { - j = 0; - do { - unsigned short minor = dev_list[i].minor + j * 0x10; - if (!register_sound_special(&oss_sound_fops, minor)) - dev_list[i].enabled = (1 << j); - } while (++j < num_audiodevs); - } - - if (sound_nblocks >= MAX_MEM_BLOCKS - 1) - printk(KERN_ERR "Sound warning: Deallocation table was too small.\n"); - - return 0; -} - -static void __exit oss_cleanup(void) -{ - int i, j; - - for (i = 0; i < ARRAY_SIZE(dev_list); i++) { - j = 0; - do { - if (dev_list[i].enabled & (1 << j)) - unregister_sound_special(dev_list[i].minor); - } while (++j < num_audiodevs); - } - - unregister_sound_special(1); - unregister_sound_special(8); - - sound_stop_timer(); - - sequencer_unload(); - - for (i = 0; i < MAX_DMA_CHANNELS; i++) - if (dma_alloc_map[i] != DMA_MAP_UNAVAIL) { - printk(KERN_ERR "Sound: Hmm, DMA%d was left allocated - fixed\n", i); - sound_free_dma(i); - } - - for (i = 0; i < sound_nblocks; i++) - vfree(sound_mem_blocks[i]); - -} - -module_init(oss_init); -module_exit(oss_cleanup); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("OSS Sound subsystem"); -MODULE_AUTHOR("Hannu Savolainen, et al."); - - -int sound_alloc_dma(int chn, char *deviceID) -{ - int err; - - if ((err = request_dma(chn, deviceID)) != 0) - return err; - - dma_alloc_map[chn] = DMA_MAP_FREE; - - return 0; -} -EXPORT_SYMBOL(sound_alloc_dma); - -int sound_open_dma(int chn, char *deviceID) -{ - if (!valid_dma(chn)) { - printk(KERN_ERR "sound_open_dma: Invalid DMA channel %d\n", chn); - return 1; - } - - if (dma_alloc_map[chn] != DMA_MAP_FREE) { - printk("sound_open_dma: DMA channel %d busy or not allocated (%d)\n", chn, dma_alloc_map[chn]); - return 1; - } - dma_alloc_map[chn] = DMA_MAP_BUSY; - return 0; -} -EXPORT_SYMBOL(sound_open_dma); - -void sound_free_dma(int chn) -{ - if (dma_alloc_map[chn] == DMA_MAP_UNAVAIL) { - /* printk( "sound_free_dma: Bad access to DMA channel %d\n", chn); */ - return; - } - free_dma(chn); - dma_alloc_map[chn] = DMA_MAP_UNAVAIL; -} -EXPORT_SYMBOL(sound_free_dma); - -void sound_close_dma(int chn) -{ - if (dma_alloc_map[chn] != DMA_MAP_BUSY) { - printk(KERN_ERR "sound_close_dma: Bad access to DMA channel %d\n", chn); - return; - } - dma_alloc_map[chn] = DMA_MAP_FREE; -} -EXPORT_SYMBOL(sound_close_dma); - -static void do_sequencer_timer(unsigned long dummy) -{ - sequencer_timer(0); -} - - -static DEFINE_TIMER(seq_timer, do_sequencer_timer, 0, 0); - -void request_sound_timer(int count) -{ - extern unsigned long seq_time; - - if (count < 0) { - seq_timer.expires = (-count) + jiffies; - add_timer(&seq_timer); - return; - } - count += seq_time; - - count -= jiffies; - - if (count < 1) - count = 1; - - seq_timer.expires = (count) + jiffies; - add_timer(&seq_timer); -} - -void sound_stop_timer(void) -{ - del_timer(&seq_timer); -} - -void conf_printf(char *name, struct address_info *hw_config) -{ -#ifndef CONFIG_SOUND_TRACEINIT - return; -#else - printk("<%s> at 0x%03x", name, hw_config->io_base); - - if (hw_config->irq) - printk(" irq %d", (hw_config->irq > 0) ? hw_config->irq : -hw_config->irq); - - if (hw_config->dma != -1 || hw_config->dma2 != -1) - { - printk(" dma %d", hw_config->dma); - if (hw_config->dma2 != -1) - printk(",%d", hw_config->dma2); - } - printk("\n"); -#endif -} -EXPORT_SYMBOL(conf_printf); - -void conf_printf2(char *name, int base, int irq, int dma, int dma2) -{ -#ifndef CONFIG_SOUND_TRACEINIT - return; -#else - printk("<%s> at 0x%03x", name, base); - - if (irq) - printk(" irq %d", (irq > 0) ? irq : -irq); - - if (dma != -1 || dma2 != -1) - { - printk(" dma %d", dma); - if (dma2 != -1) - printk(",%d", dma2); - } - printk("\n"); -#endif -} -EXPORT_SYMBOL(conf_printf2); - diff --git a/sound/oss/soundvers.h b/sound/oss/soundvers.h deleted file mode 100644 index e9084d2f46a9..000000000000 --- a/sound/oss/soundvers.h +++ /dev/null @@ -1,2 +0,0 @@ -#define SOUND_VERSION_STRING "3.8s2++-971130" -#define SOUND_INTERNAL_VERSION 0x030804 diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c deleted file mode 100644 index 97899352b15f..000000000000 --- a/sound/oss/swarm_cs4297a.c +++ /dev/null @@ -1,2781 +0,0 @@ -/******************************************************************************* -* -* "swarm_cs4297a.c" -- Cirrus Logic-Crystal CS4297a linux audio driver. -* -* Copyright (C) 2001 Broadcom Corporation. -* Copyright (C) 2000,2001 Cirrus Logic Corp. -* -- adapted from drivers by Thomas Sailer, -* -- but don't bug him; Problems should go to: -* -- tom woller (twoller@crystal.cirrus.com) or -* (audio@crystal.cirrus.com). -* -- adapted from cs4281 PCI driver for cs4297a on -* BCM1250 Synchronous Serial interface -* (Kip Walker, Broadcom Corp.) -* Copyright (C) 2004 Maciej W. Rozycki -* Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org) -* -* This program is free software; you can redistribute it and/or modify -* it under the terms of the GNU General Public License as published by -* the Free Software Foundation; either version 2 of the License, or -* (at your option) any later version. -* -* This program is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. -* -* You should have received a copy of the GNU General Public License -* along with this program; if not, write to the Free Software -* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -* -* Module command line parameters: -* none -* -* Supported devices: -* /dev/dsp standard /dev/dsp device, (mostly) OSS compatible -* /dev/mixer standard /dev/mixer device, (mostly) OSS compatible -* /dev/midi simple MIDI UART interface, no ioctl -* -* Modification History -* 08/20/00 trw - silence and no stopping DAC until release -* 08/23/00 trw - added CS_DBG statements, fix interrupt hang issue on DAC stop. -* 09/18/00 trw - added 16bit only record with conversion -* 09/24/00 trw - added Enhanced Full duplex (separate simultaneous -* capture/playback rates) -* 10/03/00 trw - fixed mmap (fixed GRECORD and the XMMS mmap test plugin -* libOSSm.so) -* 10/11/00 trw - modified for 2.4.0-test9 kernel enhancements (NR_MAP removal) -* 11/03/00 trw - fixed interrupt loss/stutter, added debug. -* 11/10/00 bkz - added __devinit to cs4297a_hw_init() -* 11/10/00 trw - fixed SMP and capture spinlock hang. -* 12/04/00 trw - cleaned up CSDEBUG flags and added "defaultorder" moduleparm. -* 12/05/00 trw - fixed polling (myth2), and added underrun swptr fix. -* 12/08/00 trw - added PM support. -* 12/14/00 trw - added wrapper code, builds under 2.4.0, 2.2.17-20, 2.2.17-8 -* (RH/Dell base), 2.2.18, 2.2.12. cleaned up code mods by ident. -* 12/19/00 trw - added PM support for 2.2 base (apm_callback). other PM cleanup. -* 12/21/00 trw - added fractional "defaultorder" inputs. if >100 then use -* defaultorder-100 as power of 2 for the buffer size. example: -* 106 = 2^(106-100) = 2^6 = 64 bytes for the buffer size. -* -*******************************************************************************/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -#include "sleep.h" - -struct cs4297a_state; - -static DEFINE_MUTEX(swarm_cs4297a_mutex); -static void stop_dac(struct cs4297a_state *s); -static void stop_adc(struct cs4297a_state *s); -static void start_dac(struct cs4297a_state *s); -static void start_adc(struct cs4297a_state *s); -#undef OSS_DOCUMENTED_MIXER_SEMANTICS - -// --------------------------------------------------------------------- - -#define CS4297a_MAGIC 0xf00beef1 - -// buffer order determines the size of the dma buffer for the driver. -// under Linux, a smaller buffer allows more responsiveness from many of the -// applications (e.g. games). A larger buffer allows some of the apps (esound) -// to not underrun the dma buffer as easily. As default, use 32k (order=3) -// rather than 64k as some of the games work more responsively. -// log base 2( buff sz = 32k). - -// -// Turn on/off debugging compilation by commenting out "#define CSDEBUG" -// -#define CSDEBUG 0 -#if CSDEBUG -#define CSDEBUG_INTERFACE 1 -#else -#undef CSDEBUG_INTERFACE -#endif -// -// cs_debugmask areas -// -#define CS_INIT 0x00000001 // initialization and probe functions -#define CS_ERROR 0x00000002 // tmp debugging bit placeholder -#define CS_INTERRUPT 0x00000004 // interrupt handler (separate from all other) -#define CS_FUNCTION 0x00000008 // enter/leave functions -#define CS_WAVE_WRITE 0x00000010 // write information for wave -#define CS_WAVE_READ 0x00000020 // read information for wave -#define CS_AC97 0x00000040 // AC97 register access -#define CS_DESCR 0x00000080 // descriptor management -#define CS_OPEN 0x00000400 // all open functions in the driver -#define CS_RELEASE 0x00000800 // all release functions in the driver -#define CS_PARMS 0x00001000 // functional and operational parameters -#define CS_IOCTL 0x00002000 // ioctl (non-mixer) -#define CS_TMP 0x10000000 // tmp debug mask bit - -// -// CSDEBUG is usual mode is set to 1, then use the -// cs_debuglevel and cs_debugmask to turn on or off debugging. -// Debug level of 1 has been defined to be kernel errors and info -// that should be printed on any released driver. -// -#if CSDEBUG -#define CS_DBGOUT(mask,level,x) if((cs_debuglevel >= (level)) && ((mask) & cs_debugmask) ) {x;} -#else -#define CS_DBGOUT(mask,level,x) -#endif - -#if CSDEBUG -static unsigned long cs_debuglevel = 4; // levels range from 1-9 -static unsigned long cs_debugmask = CS_INIT /*| CS_IOCTL*/; -module_param(cs_debuglevel, int, 0); -module_param(cs_debugmask, int, 0); -#endif -#define CS_TRUE 1 -#define CS_FALSE 0 - -#define CS_TYPE_ADC 0 -#define CS_TYPE_DAC 1 - -#define SER_BASE (A_SER_BASE_1 + KSEG1) -#define SS_CSR(t) (SER_BASE+t) -#define SS_TXTBL(t) (SER_BASE+R_SER_TX_TABLE_BASE+(t*8)) -#define SS_RXTBL(t) (SER_BASE+R_SER_RX_TABLE_BASE+(t*8)) - -#define FRAME_BYTES 32 -#define FRAME_SAMPLE_BYTES 4 - -/* Should this be variable? */ -#define SAMPLE_BUF_SIZE (16*1024) -#define SAMPLE_FRAME_COUNT (SAMPLE_BUF_SIZE / FRAME_SAMPLE_BYTES) -/* The driver can explode/shrink the frames to/from a smaller sample - buffer */ -#define DMA_BLOAT_FACTOR 1 -#define DMA_DESCR (SAMPLE_FRAME_COUNT / DMA_BLOAT_FACTOR) -#define DMA_BUF_SIZE (DMA_DESCR * FRAME_BYTES) - -/* Use the maxmium count (255 == 5.1 ms between interrupts) */ -#define DMA_INT_CNT ((1 << S_DMA_INT_PKTCNT) - 1) - -/* Figure this out: how many TX DMAs ahead to schedule a reg access */ -#define REG_LATENCY 150 - -#define FRAME_TX_US 20 - -#define SERDMA_NEXTBUF(d,f) (((d)->f+1) % (d)->ringsz) - -static const char invalid_magic[] = - KERN_CRIT "cs4297a: invalid magic value\n"; - -#define VALIDATE_STATE(s) \ -({ \ - if (!(s) || (s)->magic != CS4297a_MAGIC) { \ - printk(invalid_magic); \ - return -ENXIO; \ - } \ -}) - -/* AC97 registers */ -#define AC97_MASTER_VOL_STEREO 0x0002 /* Line Out */ -#define AC97_PCBEEP_VOL 0x000a /* none */ -#define AC97_PHONE_VOL 0x000c /* TAD Input (mono) */ -#define AC97_MIC_VOL 0x000e /* MIC Input (mono) */ -#define AC97_LINEIN_VOL 0x0010 /* Line Input (stereo) */ -#define AC97_CD_VOL 0x0012 /* CD Input (stereo) */ -#define AC97_AUX_VOL 0x0016 /* Aux Input (stereo) */ -#define AC97_PCMOUT_VOL 0x0018 /* Wave Output (stereo) */ -#define AC97_RECORD_SELECT 0x001a /* */ -#define AC97_RECORD_GAIN 0x001c -#define AC97_GENERAL_PURPOSE 0x0020 -#define AC97_3D_CONTROL 0x0022 -#define AC97_POWER_CONTROL 0x0026 -#define AC97_VENDOR_ID1 0x007c - -struct list_head cs4297a_devs = { &cs4297a_devs, &cs4297a_devs }; - -typedef struct serdma_descr_s { - u64 descr_a; - u64 descr_b; -} serdma_descr_t; - -typedef unsigned long paddr_t; - -typedef struct serdma_s { - unsigned ringsz; - serdma_descr_t *descrtab; - serdma_descr_t *descrtab_end; - paddr_t descrtab_phys; - - serdma_descr_t *descr_add; - serdma_descr_t *descr_rem; - - u64 *dma_buf; // buffer for DMA contents (frames) - paddr_t dma_buf_phys; - u16 *sample_buf; // tmp buffer for sample conversions - u16 *sb_swptr; - u16 *sb_hwptr; - u16 *sb_end; - - dma_addr_t dmaaddr; -// unsigned buforder; // Log base 2 of 'dma_buf' size in bytes.. - unsigned numfrag; // # of 'fragments' in the buffer. - unsigned fragshift; // Log base 2 of fragment size. - unsigned hwptr, swptr; - unsigned total_bytes; // # bytes process since open. - unsigned blocks; // last returned blocks value GETOPTR - unsigned wakeup; // interrupt occurred on block - int count; - unsigned underrun; // underrun flag - unsigned error; // over/underrun - wait_queue_head_t wait; - wait_queue_head_t reg_wait; - // redundant, but makes calculations easier - unsigned fragsize; // 2**fragshift.. - unsigned sbufsz; // 2**buforder. - unsigned fragsamples; - // OSS stuff - unsigned mapped:1; // Buffer mapped in cs4297a_mmap()? - unsigned ready:1; // prog_dmabuf_dac()/adc() successful? - unsigned endcleared:1; - unsigned type:1; // adc or dac buffer (CS_TYPE_XXX) - unsigned ossfragshift; - int ossmaxfrags; - unsigned subdivision; -} serdma_t; - -struct cs4297a_state { - // magic - unsigned int magic; - - struct list_head list; - - // soundcore stuff - int dev_audio; - int dev_mixer; - - // hardware resources - unsigned int irq; - - struct { - unsigned int rx_ovrrn; /* FIFO */ - unsigned int rx_overflow; /* staging buffer */ - unsigned int tx_underrun; - unsigned int rx_bad; - unsigned int rx_good; - } stats; - - // mixer registers - struct { - unsigned short vol[10]; - unsigned int recsrc; - unsigned int modcnt; - unsigned short micpreamp; - } mix; - - // wave stuff - struct properties { - unsigned fmt; - unsigned fmt_original; // original requested format - unsigned channels; - unsigned rate; - } prop_dac, prop_adc; - unsigned conversion:1; // conversion from 16 to 8 bit in progress - unsigned ena; - spinlock_t lock; - struct mutex open_mutex; - struct mutex open_sem_adc; - struct mutex open_sem_dac; - fmode_t open_mode; - wait_queue_head_t open_wait; - wait_queue_head_t open_wait_adc; - wait_queue_head_t open_wait_dac; - - dma_addr_t dmaaddr_sample_buf; - unsigned buforder_sample_buf; // Log base 2 of 'dma_buf' size in bytes.. - - serdma_t dma_dac, dma_adc; - - volatile u16 read_value; - volatile u16 read_reg; - volatile u64 reg_request; -}; - -#if 1 -#define prog_codec(a,b) -#define dealloc_dmabuf(a,b); -#endif - -static int prog_dmabuf_adc(struct cs4297a_state *s) -{ - s->dma_adc.ready = 1; - return 0; -} - - -static int prog_dmabuf_dac(struct cs4297a_state *s) -{ - s->dma_dac.ready = 1; - return 0; -} - -static void clear_advance(void *buf, unsigned bsize, unsigned bptr, - unsigned len, unsigned char c) -{ - if (bptr + len > bsize) { - unsigned x = bsize - bptr; - memset(((char *) buf) + bptr, c, x); - bptr = 0; - len -= x; - } - CS_DBGOUT(CS_WAVE_WRITE, 4, printk(KERN_INFO - "cs4297a: clear_advance(): memset %d at 0x%.8x for %d size \n", - (unsigned)c, (unsigned)((char *) buf) + bptr, len)); - memset(((char *) buf) + bptr, c, len); -} - -#if CSDEBUG - -// DEBUG ROUTINES - -#define SOUND_MIXER_CS_GETDBGLEVEL _SIOWR('M',120, int) -#define SOUND_MIXER_CS_SETDBGLEVEL _SIOWR('M',121, int) -#define SOUND_MIXER_CS_GETDBGMASK _SIOWR('M',122, int) -#define SOUND_MIXER_CS_SETDBGMASK _SIOWR('M',123, int) - -static void cs_printioctl(unsigned int x) -{ - unsigned int i; - unsigned char vidx; - // Index of mixtable1[] member is Device ID - // and must be <= SOUND_MIXER_NRDEVICES. - // Value of array member is index into s->mix.vol[] - static const unsigned char mixtable1[SOUND_MIXER_NRDEVICES] = { - [SOUND_MIXER_PCM] = 1, // voice - [SOUND_MIXER_LINE1] = 2, // AUX - [SOUND_MIXER_CD] = 3, // CD - [SOUND_MIXER_LINE] = 4, // Line - [SOUND_MIXER_SYNTH] = 5, // FM - [SOUND_MIXER_MIC] = 6, // Mic - [SOUND_MIXER_SPEAKER] = 7, // Speaker - [SOUND_MIXER_RECLEV] = 8, // Recording level - [SOUND_MIXER_VOLUME] = 9 // Master Volume - }; - - switch (x) { - case SOUND_MIXER_CS_GETDBGMASK: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_CS_GETDBGMASK:\n")); - break; - case SOUND_MIXER_CS_GETDBGLEVEL: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_CS_GETDBGLEVEL:\n")); - break; - case SOUND_MIXER_CS_SETDBGMASK: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_CS_SETDBGMASK:\n")); - break; - case SOUND_MIXER_CS_SETDBGLEVEL: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_CS_SETDBGLEVEL:\n")); - break; - case OSS_GETVERSION: - CS_DBGOUT(CS_IOCTL, 4, printk("OSS_GETVERSION:\n")); - break; - case SNDCTL_DSP_SYNC: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SYNC:\n")); - break; - case SNDCTL_DSP_SETDUPLEX: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETDUPLEX:\n")); - break; - case SNDCTL_DSP_GETCAPS: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETCAPS:\n")); - break; - case SNDCTL_DSP_RESET: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_RESET:\n")); - break; - case SNDCTL_DSP_SPEED: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SPEED:\n")); - break; - case SNDCTL_DSP_STEREO: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_STEREO:\n")); - break; - case SNDCTL_DSP_CHANNELS: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_CHANNELS:\n")); - break; - case SNDCTL_DSP_GETFMTS: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETFMTS:\n")); - break; - case SNDCTL_DSP_SETFMT: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETFMT:\n")); - break; - case SNDCTL_DSP_POST: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_POST:\n")); - break; - case SNDCTL_DSP_GETTRIGGER: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETTRIGGER:\n")); - break; - case SNDCTL_DSP_SETTRIGGER: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETTRIGGER:\n")); - break; - case SNDCTL_DSP_GETOSPACE: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOSPACE:\n")); - break; - case SNDCTL_DSP_GETISPACE: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETISPACE:\n")); - break; - case SNDCTL_DSP_NONBLOCK: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_NONBLOCK:\n")); - break; - case SNDCTL_DSP_GETODELAY: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETODELAY:\n")); - break; - case SNDCTL_DSP_GETIPTR: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETIPTR:\n")); - break; - case SNDCTL_DSP_GETOPTR: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETOPTR:\n")); - break; - case SNDCTL_DSP_GETBLKSIZE: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_GETBLKSIZE:\n")); - break; - case SNDCTL_DSP_SETFRAGMENT: - CS_DBGOUT(CS_IOCTL, 4, - printk("SNDCTL_DSP_SETFRAGMENT:\n")); - break; - case SNDCTL_DSP_SUBDIVIDE: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SUBDIVIDE:\n")); - break; - case SOUND_PCM_READ_RATE: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_RATE:\n")); - break; - case SOUND_PCM_READ_CHANNELS: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_PCM_READ_CHANNELS:\n")); - break; - case SOUND_PCM_READ_BITS: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_BITS:\n")); - break; - case SOUND_PCM_WRITE_FILTER: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_PCM_WRITE_FILTER:\n")); - break; - case SNDCTL_DSP_SETSYNCRO: - CS_DBGOUT(CS_IOCTL, 4, printk("SNDCTL_DSP_SETSYNCRO:\n")); - break; - case SOUND_PCM_READ_FILTER: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_PCM_READ_FILTER:\n")); - break; - case SOUND_MIXER_PRIVATE1: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE1:\n")); - break; - case SOUND_MIXER_PRIVATE2: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE2:\n")); - break; - case SOUND_MIXER_PRIVATE3: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE3:\n")); - break; - case SOUND_MIXER_PRIVATE4: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE4:\n")); - break; - case SOUND_MIXER_PRIVATE5: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_PRIVATE5:\n")); - break; - case SOUND_MIXER_INFO: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_INFO:\n")); - break; - case SOUND_OLD_MIXER_INFO: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_OLD_MIXER_INFO:\n")); - break; - - default: - switch (_IOC_NR(x)) { - case SOUND_MIXER_VOLUME: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_VOLUME:\n")); - break; - case SOUND_MIXER_SPEAKER: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_SPEAKER:\n")); - break; - case SOUND_MIXER_RECLEV: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_RECLEV:\n")); - break; - case SOUND_MIXER_MIC: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_MIC:\n")); - break; - case SOUND_MIXER_SYNTH: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_SYNTH:\n")); - break; - case SOUND_MIXER_RECSRC: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_RECSRC:\n")); - break; - case SOUND_MIXER_DEVMASK: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_DEVMASK:\n")); - break; - case SOUND_MIXER_RECMASK: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_RECMASK:\n")); - break; - case SOUND_MIXER_STEREODEVS: - CS_DBGOUT(CS_IOCTL, 4, - printk("SOUND_MIXER_STEREODEVS:\n")); - break; - case SOUND_MIXER_CAPS: - CS_DBGOUT(CS_IOCTL, 4, printk("SOUND_MIXER_CAPS:\n")); - break; - default: - i = _IOC_NR(x); - if (i >= SOUND_MIXER_NRDEVICES - || !(vidx = mixtable1[i])) { - CS_DBGOUT(CS_IOCTL, 4, printk - ("UNKNOWN IOCTL: 0x%.8x NR=%d\n", - x, i)); - } else { - CS_DBGOUT(CS_IOCTL, 4, printk - ("SOUND_MIXER_IOCTL AC9x: 0x%.8x NR=%d\n", - x, i)); - } - break; - } - } -} -#endif - - -static int ser_init(struct cs4297a_state *s) -{ - int i; - - CS_DBGOUT(CS_INIT, 2, - printk(KERN_INFO "cs4297a: Setting up serial parameters\n")); - - __raw_writeq(M_SYNCSER_CMD_RX_RESET | M_SYNCSER_CMD_TX_RESET, SS_CSR(R_SER_CMD)); - - __raw_writeq(M_SYNCSER_MSB_FIRST, SS_CSR(R_SER_MODE)); - __raw_writeq(32, SS_CSR(R_SER_MINFRM_SZ)); - __raw_writeq(32, SS_CSR(R_SER_MAXFRM_SZ)); - - __raw_writeq(1, SS_CSR(R_SER_TX_RD_THRSH)); - __raw_writeq(4, SS_CSR(R_SER_TX_WR_THRSH)); - __raw_writeq(8, SS_CSR(R_SER_RX_RD_THRSH)); - - /* This looks good from experimentation */ - __raw_writeq((M_SYNCSER_TXSYNC_INT | V_SYNCSER_TXSYNC_DLY(0) | M_SYNCSER_TXCLK_EXT | - M_SYNCSER_RXSYNC_INT | V_SYNCSER_RXSYNC_DLY(1) | M_SYNCSER_RXCLK_EXT | M_SYNCSER_RXSYNC_EDGE), - SS_CSR(R_SER_LINE_MODE)); - - /* This looks good from experimentation */ - __raw_writeq(V_SYNCSER_SEQ_COUNT(14) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_STROBE, - SS_TXTBL(0)); - __raw_writeq(V_SYNCSER_SEQ_COUNT(15) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, - SS_TXTBL(1)); - __raw_writeq(V_SYNCSER_SEQ_COUNT(13) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, - SS_TXTBL(2)); - __raw_writeq(V_SYNCSER_SEQ_COUNT( 0) | M_SYNCSER_SEQ_ENABLE | - M_SYNCSER_SEQ_STROBE | M_SYNCSER_SEQ_LAST, SS_TXTBL(3)); - - __raw_writeq(V_SYNCSER_SEQ_COUNT(14) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_STROBE, - SS_RXTBL(0)); - __raw_writeq(V_SYNCSER_SEQ_COUNT(15) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, - SS_RXTBL(1)); - __raw_writeq(V_SYNCSER_SEQ_COUNT(13) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_BYTE, - SS_RXTBL(2)); - __raw_writeq(V_SYNCSER_SEQ_COUNT( 0) | M_SYNCSER_SEQ_ENABLE | M_SYNCSER_SEQ_STROBE | - M_SYNCSER_SEQ_LAST, SS_RXTBL(3)); - - for (i=4; i<16; i++) { - /* Just in case... */ - __raw_writeq(M_SYNCSER_SEQ_LAST, SS_TXTBL(i)); - __raw_writeq(M_SYNCSER_SEQ_LAST, SS_RXTBL(i)); - } - - return 0; -} - -static int init_serdma(serdma_t *dma) -{ - CS_DBGOUT(CS_INIT, 2, - printk(KERN_ERR "cs4297a: desc - %d sbufsize - %d dbufsize - %d\n", - DMA_DESCR, SAMPLE_BUF_SIZE, DMA_BUF_SIZE)); - - /* Descriptors */ - dma->ringsz = DMA_DESCR; - dma->descrtab = kzalloc(dma->ringsz * sizeof(serdma_descr_t), GFP_KERNEL); - if (!dma->descrtab) { - printk(KERN_ERR "cs4297a: kzalloc descrtab failed\n"); - return -1; - } - dma->descrtab_end = dma->descrtab + dma->ringsz; - /* XXX bloddy mess, use proper DMA API here ... */ - dma->descrtab_phys = CPHYSADDR((long)dma->descrtab); - dma->descr_add = dma->descr_rem = dma->descrtab; - - /* Frame buffer area */ - dma->dma_buf = kzalloc(DMA_BUF_SIZE, GFP_KERNEL); - if (!dma->dma_buf) { - printk(KERN_ERR "cs4297a: kzalloc dma_buf failed\n"); - kfree(dma->descrtab); - return -1; - } - dma->dma_buf_phys = CPHYSADDR((long)dma->dma_buf); - - /* Samples buffer area */ - dma->sbufsz = SAMPLE_BUF_SIZE; - dma->sample_buf = kmalloc(dma->sbufsz, GFP_KERNEL); - if (!dma->sample_buf) { - printk(KERN_ERR "cs4297a: kmalloc sample_buf failed\n"); - kfree(dma->descrtab); - kfree(dma->dma_buf); - return -1; - } - dma->sb_swptr = dma->sb_hwptr = dma->sample_buf; - dma->sb_end = (u16 *)((void *)dma->sample_buf + dma->sbufsz); - dma->fragsize = dma->sbufsz >> 1; - - CS_DBGOUT(CS_INIT, 4, - printk(KERN_ERR "cs4297a: descrtab - %08x dma_buf - %x sample_buf - %x\n", - (int)dma->descrtab, (int)dma->dma_buf, - (int)dma->sample_buf)); - - return 0; -} - -static int dma_init(struct cs4297a_state *s) -{ - int i; - - CS_DBGOUT(CS_INIT, 2, - printk(KERN_INFO "cs4297a: Setting up DMA\n")); - - if (init_serdma(&s->dma_adc) || - init_serdma(&s->dma_dac)) - return -1; - - if (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_RX))|| - __raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX))) { - panic("DMA state corrupted?!"); - } - - /* Initialize now - the descr/buffer pairings will never - change... */ - for (i=0; idma_dac.descrtab[i].descr_a = M_DMA_SERRX_SOP | V_DMA_DSCRA_A_SIZE(1) | - (s->dma_dac.dma_buf_phys + i*FRAME_BYTES); - s->dma_dac.descrtab[i].descr_b = V_DMA_DSCRB_PKT_SIZE(FRAME_BYTES); - s->dma_adc.descrtab[i].descr_a = V_DMA_DSCRA_A_SIZE(1) | - (s->dma_adc.dma_buf_phys + i*FRAME_BYTES); - s->dma_adc.descrtab[i].descr_b = 0; - } - - __raw_writeq((M_DMA_EOP_INT_EN | V_DMA_INT_PKTCNT(DMA_INT_CNT) | - V_DMA_RINGSZ(DMA_DESCR) | M_DMA_TDX_EN), - SS_CSR(R_SER_DMA_CONFIG0_RX)); - __raw_writeq(M_DMA_L2CA, SS_CSR(R_SER_DMA_CONFIG1_RX)); - __raw_writeq(s->dma_adc.descrtab_phys, SS_CSR(R_SER_DMA_DSCR_BASE_RX)); - - __raw_writeq(V_DMA_RINGSZ(DMA_DESCR), SS_CSR(R_SER_DMA_CONFIG0_TX)); - __raw_writeq(M_DMA_L2CA | M_DMA_NO_DSCR_UPDT, SS_CSR(R_SER_DMA_CONFIG1_TX)); - __raw_writeq(s->dma_dac.descrtab_phys, SS_CSR(R_SER_DMA_DSCR_BASE_TX)); - - /* Prep the receive DMA descriptor ring */ - __raw_writeq(DMA_DESCR, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); - - __raw_writeq(M_SYNCSER_DMA_RX_EN | M_SYNCSER_DMA_TX_EN, SS_CSR(R_SER_DMA_ENABLE)); - - __raw_writeq((M_SYNCSER_RX_SYNC_ERR | M_SYNCSER_RX_OVERRUN | M_SYNCSER_RX_EOP_COUNT), - SS_CSR(R_SER_INT_MASK)); - - /* Enable the rx/tx; let the codec warm up to the sync and - start sending good frames before the receive FIFO is - enabled */ - __raw_writeq(M_SYNCSER_CMD_TX_EN, SS_CSR(R_SER_CMD)); - udelay(1000); - __raw_writeq(M_SYNCSER_CMD_RX_EN | M_SYNCSER_CMD_TX_EN, SS_CSR(R_SER_CMD)); - - /* XXXKW is this magic? (the "1" part) */ - while ((__raw_readq(SS_CSR(R_SER_STATUS)) & 0xf1) != 1) - ; - - CS_DBGOUT(CS_INIT, 4, - printk(KERN_INFO "cs4297a: status: %08x\n", - (unsigned int)(__raw_readq(SS_CSR(R_SER_STATUS)) & 0xffffffff))); - - return 0; -} - -static int serdma_reg_access(struct cs4297a_state *s, u64 data) -{ - serdma_t *d = &s->dma_dac; - u64 *data_p; - unsigned swptr; - unsigned long flags; - serdma_descr_t *descr; - - if (s->reg_request) { - printk(KERN_ERR "cs4297a: attempt to issue multiple reg_access\n"); - return -1; - } - - if (s->ena & FMODE_WRITE) { - /* Since a writer has the DSP open, we have to mux the - request in */ - s->reg_request = data; - oss_broken_sleep_on(&s->dma_dac.reg_wait, MAX_SCHEDULE_TIMEOUT); - /* XXXKW how can I deal with the starvation case where - the opener isn't writing? */ - } else { - /* Be safe when changing ring pointers */ - spin_lock_irqsave(&s->lock, flags); - if (d->hwptr != d->swptr) { - printk(KERN_ERR "cs4297a: reg access found bookkeeping error (hw/sw = %d/%d\n", - d->hwptr, d->swptr); - spin_unlock_irqrestore(&s->lock, flags); - return -1; - } - swptr = d->swptr; - d->hwptr = d->swptr = (d->swptr + 1) % d->ringsz; - spin_unlock_irqrestore(&s->lock, flags); - - descr = &d->descrtab[swptr]; - data_p = &d->dma_buf[swptr * 4]; - *data_p = cpu_to_be64(data); - __raw_writeq(1, SS_CSR(R_SER_DMA_DSCR_COUNT_TX)); - CS_DBGOUT(CS_DESCR, 4, - printk(KERN_INFO "cs4297a: add_tx %p (%x -> %x)\n", - data_p, swptr, d->hwptr)); - } - - CS_DBGOUT(CS_FUNCTION, 6, - printk(KERN_INFO "cs4297a: serdma_reg_access()-\n")); - - return 0; -} - -//**************************************************************************** -// "cs4297a_read_ac97" -- Reads an AC97 register -//**************************************************************************** -static int cs4297a_read_ac97(struct cs4297a_state *s, u32 offset, - u32 * value) -{ - CS_DBGOUT(CS_AC97, 1, - printk(KERN_INFO "cs4297a: read reg %2x\n", offset)); - if (serdma_reg_access(s, (0xCLL << 60) | (1LL << 47) | ((u64)(offset & 0x7F) << 40))) - return -1; - - oss_broken_sleep_on(&s->dma_adc.reg_wait, MAX_SCHEDULE_TIMEOUT); - *value = s->read_value; - CS_DBGOUT(CS_AC97, 2, - printk(KERN_INFO "cs4297a: rdr reg %x -> %x\n", s->read_reg, s->read_value)); - - return 0; -} - - -//**************************************************************************** -// "cs4297a_write_ac97()"-- writes an AC97 register -//**************************************************************************** -static int cs4297a_write_ac97(struct cs4297a_state *s, u32 offset, - u32 value) -{ - CS_DBGOUT(CS_AC97, 1, - printk(KERN_INFO "cs4297a: write reg %2x -> %04x\n", offset, value)); - return (serdma_reg_access(s, (0xELL << 60) | ((u64)(offset & 0x7F) << 40) | ((value & 0xffff) << 12))); -} - -static void stop_dac(struct cs4297a_state *s) -{ - unsigned long flags; - - CS_DBGOUT(CS_WAVE_WRITE, 3, printk(KERN_INFO "cs4297a: stop_dac():\n")); - spin_lock_irqsave(&s->lock, flags); - s->ena &= ~FMODE_WRITE; -#if 0 - /* XXXKW what do I really want here? My theory for now is - that I just flip the "ena" bit, and the interrupt handler - will stop processing the xmit channel */ - __raw_writeq((s->ena & FMODE_READ) ? M_SYNCSER_DMA_RX_EN : 0, - SS_CSR(R_SER_DMA_ENABLE)); -#endif - - spin_unlock_irqrestore(&s->lock, flags); -} - - -static void start_dac(struct cs4297a_state *s) -{ - unsigned long flags; - - CS_DBGOUT(CS_FUNCTION, 3, printk(KERN_INFO "cs4297a: start_dac()+\n")); - spin_lock_irqsave(&s->lock, flags); - if (!(s->ena & FMODE_WRITE) && (s->dma_dac.mapped || - (s->dma_dac.count > 0 - && s->dma_dac.ready))) { - s->ena |= FMODE_WRITE; - /* XXXKW what do I really want here? My theory for - now is that I just flip the "ena" bit, and the - interrupt handler will start processing the xmit - channel */ - - CS_DBGOUT(CS_WAVE_WRITE | CS_PARMS, 8, printk(KERN_INFO - "cs4297a: start_dac(): start dma\n")); - - } - spin_unlock_irqrestore(&s->lock, flags); - CS_DBGOUT(CS_FUNCTION, 3, - printk(KERN_INFO "cs4297a: start_dac()-\n")); -} - - -static void stop_adc(struct cs4297a_state *s) -{ - unsigned long flags; - - CS_DBGOUT(CS_FUNCTION, 3, - printk(KERN_INFO "cs4297a: stop_adc()+\n")); - - spin_lock_irqsave(&s->lock, flags); - s->ena &= ~FMODE_READ; - - if (s->conversion == 1) { - s->conversion = 0; - s->prop_adc.fmt = s->prop_adc.fmt_original; - } - /* Nothing to do really, I need to keep the DMA going - XXXKW when do I get here, and is there more I should do? */ - spin_unlock_irqrestore(&s->lock, flags); - CS_DBGOUT(CS_FUNCTION, 3, - printk(KERN_INFO "cs4297a: stop_adc()-\n")); -} - - -static void start_adc(struct cs4297a_state *s) -{ - unsigned long flags; - - CS_DBGOUT(CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: start_adc()+\n")); - - if (!(s->ena & FMODE_READ) && - (s->dma_adc.mapped || s->dma_adc.count <= - (signed) (s->dma_adc.sbufsz - 2 * s->dma_adc.fragsize)) - && s->dma_adc.ready) { - if (s->prop_adc.fmt & AFMT_S8 || s->prop_adc.fmt & AFMT_U8) { - // - // now only use 16 bit capture, due to truncation issue - // in the chip, noticeable distortion occurs. - // allocate buffer and then convert from 16 bit to - // 8 bit for the user buffer. - // - s->prop_adc.fmt_original = s->prop_adc.fmt; - if (s->prop_adc.fmt & AFMT_S8) { - s->prop_adc.fmt &= ~AFMT_S8; - s->prop_adc.fmt |= AFMT_S16_LE; - } - if (s->prop_adc.fmt & AFMT_U8) { - s->prop_adc.fmt &= ~AFMT_U8; - s->prop_adc.fmt |= AFMT_U16_LE; - } - // - // prog_dmabuf_adc performs a stop_adc() but that is - // ok since we really haven't started the DMA yet. - // - prog_codec(s, CS_TYPE_ADC); - - prog_dmabuf_adc(s); - s->conversion = 1; - } - spin_lock_irqsave(&s->lock, flags); - s->ena |= FMODE_READ; - /* Nothing to do really, I am probably already - DMAing... XXXKW when do I get here, and is there - more I should do? */ - spin_unlock_irqrestore(&s->lock, flags); - - CS_DBGOUT(CS_PARMS, 6, printk(KERN_INFO - "cs4297a: start_adc(): start adc\n")); - } - CS_DBGOUT(CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: start_adc()-\n")); - -} - - -// call with spinlock held! -static void cs4297a_update_ptr(struct cs4297a_state *s, int intflag) -{ - int good_diff, diff, diff2; - u64 *data_p, data; - u32 *s_ptr; - unsigned hwptr; - u32 status; - serdma_t *d; - serdma_descr_t *descr; - - // update ADC pointer - status = intflag ? __raw_readq(SS_CSR(R_SER_STATUS)) : 0; - - if ((s->ena & FMODE_READ) || (status & (M_SYNCSER_RX_EOP_COUNT))) { - d = &s->dma_adc; - hwptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_RX)) & M_DMA_CURDSCR_ADDR) - - d->descrtab_phys) / sizeof(serdma_descr_t)); - - if (s->ena & FMODE_READ) { - CS_DBGOUT(CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: upd_rcv sw->hw->hw %x/%x/%x (int-%d)n", - d->swptr, d->hwptr, hwptr, intflag)); - /* Number of DMA buffers available for software: */ - diff2 = diff = (d->ringsz + hwptr - d->hwptr) % d->ringsz; - d->hwptr = hwptr; - good_diff = 0; - s_ptr = (u32 *)&(d->dma_buf[d->swptr*4]); - descr = &d->descrtab[d->swptr]; - while (diff2--) { - u64 data = be64_to_cpu(*(u64 *)s_ptr); - u64 descr_a; - u16 left, right; - descr_a = descr->descr_a; - descr->descr_a &= ~M_DMA_SERRX_SOP; - if ((descr_a & M_DMA_DSCRA_A_ADDR) != CPHYSADDR((long)s_ptr)) { - printk(KERN_ERR "cs4297a: RX Bad address (read)\n"); - } - if (((data & 0x9800000000000000) != 0x9800000000000000) || - (!(descr_a & M_DMA_SERRX_SOP)) || - (G_DMA_DSCRB_PKT_SIZE(descr->descr_b) != FRAME_BYTES)) { - s->stats.rx_bad++; - printk(KERN_DEBUG "cs4297a: RX Bad attributes (read)\n"); - continue; - } - s->stats.rx_good++; - if ((data >> 61) == 7) { - s->read_value = (data >> 12) & 0xffff; - s->read_reg = (data >> 40) & 0x7f; - wake_up(&d->reg_wait); - } - if (d->count && (d->sb_hwptr == d->sb_swptr)) { - s->stats.rx_overflow++; - printk(KERN_DEBUG "cs4297a: RX overflow\n"); - continue; - } - good_diff++; - left = ((be32_to_cpu(s_ptr[1]) & 0xff) << 8) | - ((be32_to_cpu(s_ptr[2]) >> 24) & 0xff); - right = (be32_to_cpu(s_ptr[2]) >> 4) & 0xffff; - *d->sb_hwptr++ = cpu_to_be16(left); - *d->sb_hwptr++ = cpu_to_be16(right); - if (d->sb_hwptr == d->sb_end) - d->sb_hwptr = d->sample_buf; - descr++; - if (descr == d->descrtab_end) { - descr = d->descrtab; - s_ptr = (u32 *)s->dma_adc.dma_buf; - } else { - s_ptr += 8; - } - } - d->total_bytes += good_diff * FRAME_SAMPLE_BYTES; - d->count += good_diff * FRAME_SAMPLE_BYTES; - if (d->count > d->sbufsz) { - printk(KERN_ERR "cs4297a: bogus receive overflow!!\n"); - } - d->swptr = (d->swptr + diff) % d->ringsz; - __raw_writeq(diff, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); - if (d->mapped) { - if (d->count >= (signed) d->fragsize) - wake_up(&d->wait); - } else { - if (d->count > 0) { - CS_DBGOUT(CS_WAVE_READ, 4, - printk(KERN_INFO - "cs4297a: update count -> %d\n", d->count)); - wake_up(&d->wait); - } - } - } else { - /* Receive is going even if no one is - listening (for register accesses and to - avoid FIFO overrun) */ - diff2 = diff = (hwptr + d->ringsz - d->hwptr) % d->ringsz; - if (!diff) { - printk(KERN_ERR "cs4297a: RX full or empty?\n"); - } - - descr = &d->descrtab[d->swptr]; - data_p = &d->dma_buf[d->swptr*4]; - - /* Force this to happen at least once; I got - here because of an interrupt, so there must - be a buffer to process. */ - do { - data = be64_to_cpu(*data_p); - if ((descr->descr_a & M_DMA_DSCRA_A_ADDR) != CPHYSADDR((long)data_p)) { - printk(KERN_ERR "cs4297a: RX Bad address %d (%llx %lx)\n", d->swptr, - (long long)(descr->descr_a & M_DMA_DSCRA_A_ADDR), - (long)CPHYSADDR((long)data_p)); - } - if (!(data & (1LL << 63)) || - !(descr->descr_a & M_DMA_SERRX_SOP) || - (G_DMA_DSCRB_PKT_SIZE(descr->descr_b) != FRAME_BYTES)) { - s->stats.rx_bad++; - printk(KERN_DEBUG "cs4297a: RX Bad attributes\n"); - } else { - s->stats.rx_good++; - if ((data >> 61) == 7) { - s->read_value = (data >> 12) & 0xffff; - s->read_reg = (data >> 40) & 0x7f; - wake_up(&d->reg_wait); - } - } - descr->descr_a &= ~M_DMA_SERRX_SOP; - descr++; - d->swptr++; - data_p += 4; - if (descr == d->descrtab_end) { - descr = d->descrtab; - d->swptr = 0; - data_p = d->dma_buf; - } - __raw_writeq(1, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); - } while (--diff); - d->hwptr = hwptr; - - CS_DBGOUT(CS_DESCR, 6, - printk(KERN_INFO "cs4297a: hw/sw %x/%x\n", d->hwptr, d->swptr)); - } - - CS_DBGOUT(CS_PARMS, 8, printk(KERN_INFO - "cs4297a: cs4297a_update_ptr(): s=0x%.8x hwptr=%d total_bytes=%d count=%d \n", - (unsigned)s, d->hwptr, - d->total_bytes, d->count)); - } - - /* XXXKW worry about s->reg_request -- there is a starvation - case if s->ena has FMODE_WRITE on, but the client isn't - doing writes */ - - // update DAC pointer - // - // check for end of buffer, means that we are going to wait for another interrupt - // to allow silence to fill the fifos on the part, to keep pops down to a minimum. - // - if (s->ena & FMODE_WRITE) { - serdma_t *d = &s->dma_dac; - hwptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - - d->descrtab_phys) / sizeof(serdma_descr_t)); - diff = (d->ringsz + hwptr - d->hwptr) % d->ringsz; - CS_DBGOUT(CS_WAVE_WRITE, 4, printk(KERN_INFO - "cs4297a: cs4297a_update_ptr(): hw/hw/sw %x/%x/%x diff %d count %d\n", - d->hwptr, hwptr, d->swptr, diff, d->count)); - d->hwptr = hwptr; - /* XXXKW stereo? conversion? Just assume 2 16-bit samples for now */ - d->total_bytes += diff * FRAME_SAMPLE_BYTES; - if (d->mapped) { - d->count += diff * FRAME_SAMPLE_BYTES; - if (d->count >= d->fragsize) { - d->wakeup = 1; - wake_up(&d->wait); - if (d->count > d->sbufsz) - d->count &= d->sbufsz - 1; - } - } else { - d->count -= diff * FRAME_SAMPLE_BYTES; - if (d->count <= 0) { - // - // fill with silence, and do not shut down the DAC. - // Continue to play silence until the _release. - // - CS_DBGOUT(CS_WAVE_WRITE, 6, printk(KERN_INFO - "cs4297a: cs4297a_update_ptr(): memset %d at 0x%.8x for %d size \n", - (unsigned)(s->prop_dac.fmt & - (AFMT_U8 | AFMT_U16_LE)) ? 0x80 : 0, - (unsigned)d->dma_buf, - d->ringsz)); - memset(d->dma_buf, 0, d->ringsz * FRAME_BYTES); - if (d->count < 0) { - d->underrun = 1; - s->stats.tx_underrun++; - d->count = 0; - CS_DBGOUT(CS_ERROR, 9, printk(KERN_INFO - "cs4297a: cs4297a_update_ptr(): underrun\n")); - } - } else if (d->count <= - (signed) d->fragsize - && !d->endcleared) { - /* XXXKW what is this for? */ - clear_advance(d->dma_buf, - d->sbufsz, - d->swptr, - d->fragsize, - 0); - d->endcleared = 1; - } - if ( (d->count <= (signed) d->sbufsz/2) || intflag) - { - CS_DBGOUT(CS_WAVE_WRITE, 4, - printk(KERN_INFO - "cs4297a: update count -> %d\n", d->count)); - wake_up(&d->wait); - } - } - CS_DBGOUT(CS_PARMS, 8, printk(KERN_INFO - "cs4297a: cs4297a_update_ptr(): s=0x%.8x hwptr=%d total_bytes=%d count=%d \n", - (unsigned) s, d->hwptr, - d->total_bytes, d->count)); - } -} - -static int mixer_ioctl(struct cs4297a_state *s, unsigned int cmd, - unsigned long arg) -{ - // Index to mixer_src[] is value of AC97 Input Mux Select Reg. - // Value of array member is recording source Device ID Mask. - static const unsigned int mixer_src[8] = { - SOUND_MASK_MIC, SOUND_MASK_CD, 0, SOUND_MASK_LINE1, - SOUND_MASK_LINE, SOUND_MASK_VOLUME, 0, 0 - }; - - // Index of mixtable1[] member is Device ID - // and must be <= SOUND_MIXER_NRDEVICES. - // Value of array member is index into s->mix.vol[] - static const unsigned char mixtable1[SOUND_MIXER_NRDEVICES] = { - [SOUND_MIXER_PCM] = 1, // voice - [SOUND_MIXER_LINE1] = 2, // AUX - [SOUND_MIXER_CD] = 3, // CD - [SOUND_MIXER_LINE] = 4, // Line - [SOUND_MIXER_SYNTH] = 5, // FM - [SOUND_MIXER_MIC] = 6, // Mic - [SOUND_MIXER_SPEAKER] = 7, // Speaker - [SOUND_MIXER_RECLEV] = 8, // Recording level - [SOUND_MIXER_VOLUME] = 9 // Master Volume - }; - - static const unsigned mixreg[] = { - AC97_PCMOUT_VOL, - AC97_AUX_VOL, - AC97_CD_VOL, - AC97_LINEIN_VOL - }; - unsigned char l, r, rl, rr, vidx; - unsigned char attentbl[11] = - { 63, 42, 26, 17, 14, 11, 8, 6, 4, 2, 0 }; - unsigned temp1; - int i, val; - - VALIDATE_STATE(s); - CS_DBGOUT(CS_FUNCTION, 4, printk(KERN_INFO - "cs4297a: mixer_ioctl(): s=0x%.8x cmd=0x%.8x\n", - (unsigned) s, cmd)); -#if CSDEBUG - cs_printioctl(cmd); -#endif -#if CSDEBUG_INTERFACE - - if ((cmd == SOUND_MIXER_CS_GETDBGMASK) || - (cmd == SOUND_MIXER_CS_SETDBGMASK) || - (cmd == SOUND_MIXER_CS_GETDBGLEVEL) || - (cmd == SOUND_MIXER_CS_SETDBGLEVEL)) - { - switch (cmd) { - - case SOUND_MIXER_CS_GETDBGMASK: - return put_user(cs_debugmask, - (unsigned long *) arg); - - case SOUND_MIXER_CS_GETDBGLEVEL: - return put_user(cs_debuglevel, - (unsigned long *) arg); - - case SOUND_MIXER_CS_SETDBGMASK: - if (get_user(val, (unsigned long *) arg)) - return -EFAULT; - cs_debugmask = val; - return 0; - - case SOUND_MIXER_CS_SETDBGLEVEL: - if (get_user(val, (unsigned long *) arg)) - return -EFAULT; - cs_debuglevel = val; - return 0; - default: - CS_DBGOUT(CS_ERROR, 1, printk(KERN_INFO - "cs4297a: mixer_ioctl(): ERROR unknown debug cmd\n")); - return 0; - } - } -#endif - - if (cmd == SOUND_MIXER_PRIVATE1) { - return -EINVAL; - } - if (cmd == SOUND_MIXER_PRIVATE2) { - // enable/disable/query spatializer - if (get_user(val, (int *) arg)) - return -EFAULT; - if (val != -1) { - temp1 = (val & 0x3f) >> 2; - cs4297a_write_ac97(s, AC97_3D_CONTROL, temp1); - cs4297a_read_ac97(s, AC97_GENERAL_PURPOSE, - &temp1); - cs4297a_write_ac97(s, AC97_GENERAL_PURPOSE, - temp1 | 0x2000); - } - cs4297a_read_ac97(s, AC97_3D_CONTROL, &temp1); - return put_user((temp1 << 2) | 3, (int *) arg); - } - if (cmd == SOUND_MIXER_INFO) { - mixer_info info; - memset(&info, 0, sizeof(info)); - strlcpy(info.id, "CS4297a", sizeof(info.id)); - strlcpy(info.name, "Crystal CS4297a", sizeof(info.name)); - info.modify_counter = s->mix.modcnt; - if (copy_to_user((void *) arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == SOUND_OLD_MIXER_INFO) { - _old_mixer_info info; - memset(&info, 0, sizeof(info)); - strlcpy(info.id, "CS4297a", sizeof(info.id)); - strlcpy(info.name, "Crystal CS4297a", sizeof(info.name)); - if (copy_to_user((void *) arg, &info, sizeof(info))) - return -EFAULT; - return 0; - } - if (cmd == OSS_GETVERSION) - return put_user(SOUND_VERSION, (int *) arg); - - if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int)) - return -EINVAL; - - // If ioctl has only the SIOC_READ bit(bit 31) - // on, process the only-read commands. - if (_SIOC_DIR(cmd) == _SIOC_READ) { - switch (_IOC_NR(cmd)) { - case SOUND_MIXER_RECSRC: // Arg contains a bit for each recording source - cs4297a_read_ac97(s, AC97_RECORD_SELECT, - &temp1); - return put_user(mixer_src[temp1 & 7], (int *) arg); - - case SOUND_MIXER_DEVMASK: // Arg contains a bit for each supported device - return put_user(SOUND_MASK_PCM | SOUND_MASK_LINE | - SOUND_MASK_VOLUME | SOUND_MASK_RECLEV, - (int *) arg); - - case SOUND_MIXER_RECMASK: // Arg contains a bit for each supported recording source - return put_user(SOUND_MASK_LINE | SOUND_MASK_VOLUME, - (int *) arg); - - case SOUND_MIXER_STEREODEVS: // Mixer channels supporting stereo - return put_user(SOUND_MASK_PCM | SOUND_MASK_LINE | - SOUND_MASK_VOLUME | SOUND_MASK_RECLEV, - (int *) arg); - - case SOUND_MIXER_CAPS: - return put_user(SOUND_CAP_EXCL_INPUT, (int *) arg); - - default: - i = _IOC_NR(cmd); - if (i >= SOUND_MIXER_NRDEVICES - || !(vidx = mixtable1[i])) - return -EINVAL; - return put_user(s->mix.vol[vidx - 1], (int *) arg); - } - } - // If ioctl doesn't have both the SIOC_READ and - // the SIOC_WRITE bit set, return invalid. - if (_SIOC_DIR(cmd) != (_SIOC_READ | _SIOC_WRITE)) - return -EINVAL; - - // Increment the count of volume writes. - s->mix.modcnt++; - - // Isolate the command; it must be a write. - switch (_IOC_NR(cmd)) { - - case SOUND_MIXER_RECSRC: // Arg contains a bit for each recording source - if (get_user(val, (int *) arg)) - return -EFAULT; - i = hweight32(val); // i = # bits on in val. - if (i != 1) // One & only 1 bit must be on. - return 0; - for (i = 0; i < sizeof(mixer_src) / sizeof(int); i++) { - if (val == mixer_src[i]) { - temp1 = (i << 8) | i; - cs4297a_write_ac97(s, - AC97_RECORD_SELECT, - temp1); - return 0; - } - } - return 0; - - case SOUND_MIXER_VOLUME: - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; // Max soundcard.h vol is 100. - if (l < 6) { - rl = 63; - l = 0; - } else - rl = attentbl[(10 * l) / 100]; // Convert 0-100 vol to 63-0 atten. - - r = (val >> 8) & 0xff; - if (r > 100) - r = 100; // Max right volume is 100, too - if (r < 6) { - rr = 63; - r = 0; - } else - rr = attentbl[(10 * r) / 100]; // Convert volume to attenuation. - - if ((rl > 60) && (rr > 60)) // If both l & r are 'low', - temp1 = 0x8000; // turn on the mute bit. - else - temp1 = 0; - - temp1 |= (rl << 8) | rr; - - cs4297a_write_ac97(s, AC97_MASTER_VOL_STEREO, temp1); - cs4297a_write_ac97(s, AC97_PHONE_VOL, temp1); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[8] = ((unsigned int) r << 8) | l; -#else - s->mix.vol[8] = val; -#endif - return put_user(s->mix.vol[8], (int *) arg); - - case SOUND_MIXER_SPEAKER: - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; - if (l < 3) { - rl = 0; - l = 0; - } else { - rl = (l * 2 - 5) / 13; // Convert 0-100 range to 0-15. - l = (rl * 13 + 5) / 2; - } - - if (rl < 3) { - temp1 = 0x8000; - rl = 0; - } else - temp1 = 0; - rl = 15 - rl; // Convert volume to attenuation. - temp1 |= rl << 1; - cs4297a_write_ac97(s, AC97_PCBEEP_VOL, temp1); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[6] = l << 8; -#else - s->mix.vol[6] = val; -#endif - return put_user(s->mix.vol[6], (int *) arg); - - case SOUND_MIXER_RECLEV: - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; - r = (val >> 8) & 0xff; - if (r > 100) - r = 100; - rl = (l * 2 - 5) / 13; // Convert 0-100 scale to 0-15. - rr = (r * 2 - 5) / 13; - if (rl < 3 && rr < 3) - temp1 = 0x8000; - else - temp1 = 0; - - temp1 = temp1 | (rl << 8) | rr; - cs4297a_write_ac97(s, AC97_RECORD_GAIN, temp1); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[7] = ((unsigned int) r << 8) | l; -#else - s->mix.vol[7] = val; -#endif - return put_user(s->mix.vol[7], (int *) arg); - - case SOUND_MIXER_MIC: - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; - if (l < 1) { - l = 0; - rl = 0; - } else { - rl = ((unsigned) l * 5 - 4) / 16; // Convert 0-100 range to 0-31. - l = (rl * 16 + 4) / 5; - } - cs4297a_read_ac97(s, AC97_MIC_VOL, &temp1); - temp1 &= 0x40; // Isolate 20db gain bit. - if (rl < 3) { - temp1 |= 0x8000; - rl = 0; - } - rl = 31 - rl; // Convert volume to attenuation. - temp1 |= rl; - cs4297a_write_ac97(s, AC97_MIC_VOL, temp1); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[5] = val << 8; -#else - s->mix.vol[5] = val; -#endif - return put_user(s->mix.vol[5], (int *) arg); - - - case SOUND_MIXER_SYNTH: - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; - if (get_user(val, (int *) arg)) - return -EFAULT; - r = (val >> 8) & 0xff; - if (r > 100) - r = 100; - rl = (l * 2 - 11) / 3; // Convert 0-100 range to 0-63. - rr = (r * 2 - 11) / 3; - if (rl < 3) // If l is low, turn on - temp1 = 0x0080; // the mute bit. - else - temp1 = 0; - - rl = 63 - rl; // Convert vol to attenuation. -// writel(temp1 | rl, s->pBA0 + FMLVC); - if (rr < 3) // If rr is low, turn on - temp1 = 0x0080; // the mute bit. - else - temp1 = 0; - rr = 63 - rr; // Convert vol to attenuation. -// writel(temp1 | rr, s->pBA0 + FMRVC); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[4] = (r << 8) | l; -#else - s->mix.vol[4] = val; -#endif - return put_user(s->mix.vol[4], (int *) arg); - - - default: - CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO - "cs4297a: mixer_ioctl(): default\n")); - - i = _IOC_NR(cmd); - if (i >= SOUND_MIXER_NRDEVICES || !(vidx = mixtable1[i])) - return -EINVAL; - if (get_user(val, (int *) arg)) - return -EFAULT; - l = val & 0xff; - if (l > 100) - l = 100; - if (l < 1) { - l = 0; - rl = 31; - } else - rl = (attentbl[(l * 10) / 100]) >> 1; - - r = (val >> 8) & 0xff; - if (r > 100) - r = 100; - if (r < 1) { - r = 0; - rr = 31; - } else - rr = (attentbl[(r * 10) / 100]) >> 1; - if ((rl > 30) && (rr > 30)) - temp1 = 0x8000; - else - temp1 = 0; - temp1 = temp1 | (rl << 8) | rr; - cs4297a_write_ac97(s, mixreg[vidx - 1], temp1); - -#ifdef OSS_DOCUMENTED_MIXER_SEMANTICS - s->mix.vol[vidx - 1] = ((unsigned int) r << 8) | l; -#else - s->mix.vol[vidx - 1] = val; -#endif - return put_user(s->mix.vol[vidx - 1], (int *) arg); - } -} - - -// --------------------------------------------------------------------- - -static int cs4297a_open_mixdev(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - struct cs4297a_state *s=NULL; - struct list_head *entry; - - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4, - printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()+\n")); - - mutex_lock(&swarm_cs4297a_mutex); - list_for_each(entry, &cs4297a_devs) - { - s = list_entry(entry, struct cs4297a_state, list); - if(s->dev_mixer == minor) - break; - } - if (!s) - { - CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2, - printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()- -ENODEV\n")); - - mutex_unlock(&swarm_cs4297a_mutex); - return -ENODEV; - } - VALIDATE_STATE(s); - file->private_data = s; - - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4, - printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()- 0\n")); - mutex_unlock(&swarm_cs4297a_mutex); - - return nonseekable_open(inode, file); -} - - -static int cs4297a_release_mixdev(struct inode *inode, struct file *file) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - - VALIDATE_STATE(s); - return 0; -} - - -static int cs4297a_ioctl_mixdev(struct file *file, - unsigned int cmd, unsigned long arg) -{ - int ret; - mutex_lock(&swarm_cs4297a_mutex); - ret = mixer_ioctl((struct cs4297a_state *) file->private_data, cmd, - arg); - mutex_unlock(&swarm_cs4297a_mutex); - return ret; -} - - -// ****************************************************************************************** -// Mixer file operations struct. -// ****************************************************************************************** -static const struct file_operations cs4297a_mixer_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .unlocked_ioctl = cs4297a_ioctl_mixdev, - .open = cs4297a_open_mixdev, - .release = cs4297a_release_mixdev, -}; - -// --------------------------------------------------------------------- - - -static int drain_adc(struct cs4297a_state *s, int nonblock) -{ - /* This routine serves no purpose currently - any samples - sitting in the receive queue will just be processed by the - background consumer. This would be different if DMA - actually stopped when there were no clients. */ - return 0; -} - -static int drain_dac(struct cs4297a_state *s, int nonblock) -{ - DECLARE_WAITQUEUE(wait, current); - unsigned long flags; - unsigned hwptr; - unsigned tmo; - int count; - - if (s->dma_dac.mapped) - return 0; - if (nonblock) - return -EBUSY; - add_wait_queue(&s->dma_dac.wait, &wait); - while ((count = __raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX))) || - (s->dma_dac.count > 0)) { - if (!signal_pending(current)) { - set_current_state(TASK_INTERRUPTIBLE); - /* XXXKW is this calculation working? */ - tmo = ((count * FRAME_TX_US) * HZ) / 1000000; - schedule_timeout(tmo + 1); - } else { - /* XXXKW do I care if there is a signal pending? */ - } - } - spin_lock_irqsave(&s->lock, flags); - /* Reset the bookkeeping */ - hwptr = (int)(((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - - s->dma_dac.descrtab_phys) / sizeof(serdma_descr_t)); - s->dma_dac.hwptr = s->dma_dac.swptr = hwptr; - spin_unlock_irqrestore(&s->lock, flags); - remove_wait_queue(&s->dma_dac.wait, &wait); - __set_current_state(TASK_RUNNING); - return 0; -} - - -// --------------------------------------------------------------------- - -static ssize_t cs4297a_read(struct file *file, char *buffer, size_t count, - loff_t * ppos) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - ssize_t ret; - unsigned long flags; - int cnt, count_fr, cnt_by; - unsigned copied = 0; - - CS_DBGOUT(CS_FUNCTION | CS_WAVE_READ, 2, - printk(KERN_INFO "cs4297a: cs4297a_read()+ %d \n", count)); - - VALIDATE_STATE(s); - if (s->dma_adc.mapped) - return -ENXIO; - if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s))) - return ret; - if (!access_ok(VERIFY_WRITE, buffer, count)) - return -EFAULT; - ret = 0; -// -// "count" is the amount of bytes to read (from app), is decremented each loop -// by the amount of bytes that have been returned to the user buffer. -// "cnt" is the running total of each read from the buffer (changes each loop) -// "buffer" points to the app's buffer -// "ret" keeps a running total of the amount of bytes that have been copied -// to the user buffer. -// "copied" is the total bytes copied into the user buffer for each loop. -// - while (count > 0) { - CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO - "_read() count>0 count=%d .count=%d .swptr=%d .hwptr=%d \n", - count, s->dma_adc.count, - s->dma_adc.swptr, s->dma_adc.hwptr)); - spin_lock_irqsave(&s->lock, flags); - - /* cnt will be the number of available samples (16-bit - stereo); it starts out as the maxmimum consequetive - samples */ - cnt = (s->dma_adc.sb_end - s->dma_adc.sb_swptr) / 2; - count_fr = s->dma_adc.count / FRAME_SAMPLE_BYTES; - - // dma_adc.count is the current total bytes that have not been read. - // if the amount of unread bytes from the current sw pointer to the - // end of the buffer is greater than the current total bytes that - // have not been read, then set the "cnt" (unread bytes) to the - // amount of unread bytes. - - if (count_fr < cnt) - cnt = count_fr; - cnt_by = cnt * FRAME_SAMPLE_BYTES; - spin_unlock_irqrestore(&s->lock, flags); - // - // if we are converting from 8/16 then we need to copy - // twice the number of 16 bit bytes then 8 bit bytes. - // - if (s->conversion) { - if (cnt_by > (count * 2)) { - cnt = (count * 2) / FRAME_SAMPLE_BYTES; - cnt_by = count * 2; - } - } else { - if (cnt_by > count) { - cnt = count / FRAME_SAMPLE_BYTES; - cnt_by = count; - } - } - // - // "cnt" NOW is the smaller of the amount that will be read, - // and the amount that is requested in this read (or partial). - // if there are no bytes in the buffer to read, then start the - // ADC and wait for the interrupt handler to wake us up. - // - if (cnt <= 0) { - - // start up the dma engine and then continue back to the top of - // the loop when wake up occurs. - start_adc(s); - if (file->f_flags & O_NONBLOCK) - return ret ? ret : -EAGAIN; - oss_broken_sleep_on(&s->dma_adc.wait, MAX_SCHEDULE_TIMEOUT); - if (signal_pending(current)) - return ret ? ret : -ERESTARTSYS; - continue; - } - // there are bytes in the buffer to read. - // copy from the hw buffer over to the user buffer. - // user buffer is designated by "buffer" - // virtual address to copy from is dma_buf+swptr - // the "cnt" is the number of bytes to read. - - CS_DBGOUT(CS_WAVE_READ, 2, printk(KERN_INFO - "_read() copy_to cnt=%d count=%d ", cnt_by, count)); - CS_DBGOUT(CS_WAVE_READ, 8, printk(KERN_INFO - " .sbufsz=%d .count=%d buffer=0x%.8x ret=%d\n", - s->dma_adc.sbufsz, s->dma_adc.count, - (unsigned) buffer, ret)); - - if (copy_to_user (buffer, ((void *)s->dma_adc.sb_swptr), cnt_by)) - return ret ? ret : -EFAULT; - copied = cnt_by; - - /* Return the descriptors */ - spin_lock_irqsave(&s->lock, flags); - CS_DBGOUT(CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: upd_rcv sw->hw %x/%x\n", s->dma_adc.swptr, s->dma_adc.hwptr)); - s->dma_adc.count -= cnt_by; - s->dma_adc.sb_swptr += cnt * 2; - if (s->dma_adc.sb_swptr == s->dma_adc.sb_end) - s->dma_adc.sb_swptr = s->dma_adc.sample_buf; - spin_unlock_irqrestore(&s->lock, flags); - count -= copied; - buffer += copied; - ret += copied; - start_adc(s); - } - CS_DBGOUT(CS_FUNCTION | CS_WAVE_READ, 2, - printk(KERN_INFO "cs4297a: cs4297a_read()- %d\n", ret)); - return ret; -} - - -static ssize_t cs4297a_write(struct file *file, const char *buffer, - size_t count, loff_t * ppos) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - ssize_t ret; - unsigned long flags; - unsigned swptr, hwptr; - int cnt; - - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE, 2, - printk(KERN_INFO "cs4297a: cs4297a_write()+ count=%d\n", - count)); - VALIDATE_STATE(s); - - if (s->dma_dac.mapped) - return -ENXIO; - if (!s->dma_dac.ready && (ret = prog_dmabuf_dac(s))) - return ret; - if (!access_ok(VERIFY_READ, buffer, count)) - return -EFAULT; - ret = 0; - while (count > 0) { - serdma_t *d = &s->dma_dac; - int copy_cnt; - u32 *s_tmpl; - u32 *t_tmpl; - u32 left, right; - int swap = (s->prop_dac.fmt == AFMT_S16_LE) || (s->prop_dac.fmt == AFMT_U16_LE); - - /* XXXXXX this is broken for BLOAT_FACTOR */ - spin_lock_irqsave(&s->lock, flags); - if (d->count < 0) { - d->count = 0; - d->swptr = d->hwptr; - } - if (d->underrun) { - d->underrun = 0; - hwptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - - d->descrtab_phys) / sizeof(serdma_descr_t)); - d->swptr = d->hwptr = hwptr; - } - swptr = d->swptr; - cnt = d->sbufsz - (swptr * FRAME_SAMPLE_BYTES); - /* Will this write fill up the buffer? */ - if (d->count + cnt > d->sbufsz) - cnt = d->sbufsz - d->count; - spin_unlock_irqrestore(&s->lock, flags); - if (cnt > count) - cnt = count; - if (cnt <= 0) { - start_dac(s); - if (file->f_flags & O_NONBLOCK) - return ret ? ret : -EAGAIN; - oss_broken_sleep_on(&d->wait, MAX_SCHEDULE_TIMEOUT); - if (signal_pending(current)) - return ret ? ret : -ERESTARTSYS; - continue; - } - if (copy_from_user(d->sample_buf, buffer, cnt)) - return ret ? ret : -EFAULT; - - copy_cnt = cnt; - s_tmpl = (u32 *)d->sample_buf; - t_tmpl = (u32 *)(d->dma_buf + (swptr * 4)); - - /* XXXKW assuming 16-bit stereo! */ - do { - u32 tmp; - - t_tmpl[0] = cpu_to_be32(0x98000000); - - tmp = be32_to_cpu(s_tmpl[0]); - left = tmp & 0xffff; - right = tmp >> 16; - if (swap) { - left = swab16(left); - right = swab16(right); - } - t_tmpl[1] = cpu_to_be32(left >> 8); - t_tmpl[2] = cpu_to_be32(((left & 0xff) << 24) | - (right << 4)); - - s_tmpl++; - t_tmpl += 8; - copy_cnt -= 4; - } while (copy_cnt); - - /* Mux in any pending read/write accesses */ - if (s->reg_request) { - *(u64 *)(d->dma_buf + (swptr * 4)) |= - cpu_to_be64(s->reg_request); - s->reg_request = 0; - wake_up(&s->dma_dac.reg_wait); - } - - CS_DBGOUT(CS_WAVE_WRITE, 4, - printk(KERN_INFO - "cs4297a: copy in %d to swptr %x\n", cnt, swptr)); - - swptr = (swptr + (cnt/FRAME_SAMPLE_BYTES)) % d->ringsz; - __raw_writeq(cnt/FRAME_SAMPLE_BYTES, SS_CSR(R_SER_DMA_DSCR_COUNT_TX)); - spin_lock_irqsave(&s->lock, flags); - d->swptr = swptr; - d->count += cnt; - d->endcleared = 0; - spin_unlock_irqrestore(&s->lock, flags); - count -= cnt; - buffer += cnt; - ret += cnt; - start_dac(s); - } - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE, 2, - printk(KERN_INFO "cs4297a: cs4297a_write()- %d\n", ret)); - return ret; -} - - -static unsigned int cs4297a_poll(struct file *file, - struct poll_table_struct *wait) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - unsigned long flags; - unsigned int mask = 0; - - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, - printk(KERN_INFO "cs4297a: cs4297a_poll()+\n")); - VALIDATE_STATE(s); - if (file->f_mode & FMODE_WRITE) { - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, - printk(KERN_INFO - "cs4297a: cs4297a_poll() wait on FMODE_WRITE\n")); - if(!s->dma_dac.ready && prog_dmabuf_dac(s)) - return 0; - poll_wait(file, &s->dma_dac.wait, wait); - } - if (file->f_mode & FMODE_READ) { - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, - printk(KERN_INFO - "cs4297a: cs4297a_poll() wait on FMODE_READ\n")); - if(!s->dma_dac.ready && prog_dmabuf_adc(s)) - return 0; - poll_wait(file, &s->dma_adc.wait, wait); - } - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - if (file->f_mode & FMODE_WRITE) { - if (s->dma_dac.mapped) { - if (s->dma_dac.count >= - (signed) s->dma_dac.fragsize) { - if (s->dma_dac.wakeup) - mask |= POLLOUT | POLLWRNORM; - else - mask = 0; - s->dma_dac.wakeup = 0; - } - } else { - if ((signed) (s->dma_dac.sbufsz/2) >= s->dma_dac.count) - mask |= POLLOUT | POLLWRNORM; - } - } else if (file->f_mode & FMODE_READ) { - if (s->dma_adc.mapped) { - if (s->dma_adc.count >= (signed) s->dma_adc.fragsize) - mask |= POLLIN | POLLRDNORM; - } else { - if (s->dma_adc.count > 0) - mask |= POLLIN | POLLRDNORM; - } - } - spin_unlock_irqrestore(&s->lock, flags); - CS_DBGOUT(CS_FUNCTION | CS_WAVE_WRITE | CS_WAVE_READ, 4, - printk(KERN_INFO "cs4297a: cs4297a_poll()- 0x%.8x\n", - mask)); - return mask; -} - - -static int cs4297a_mmap(struct file *file, struct vm_area_struct *vma) -{ - /* XXXKW currently no mmap support */ - return -EINVAL; - return 0; -} - - -static int cs4297a_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - unsigned long flags; - audio_buf_info abinfo; - count_info cinfo; - int val, mapped, ret; - - CS_DBGOUT(CS_FUNCTION|CS_IOCTL, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): file=0x%.8x cmd=0x%.8x\n", - (unsigned) file, cmd)); -#if CSDEBUG - cs_printioctl(cmd); -#endif - VALIDATE_STATE(s); - mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) || - ((file->f_mode & FMODE_READ) && s->dma_adc.mapped); - switch (cmd) { - case OSS_GETVERSION: - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): SOUND_VERSION=0x%.8x\n", - SOUND_VERSION)); - return put_user(SOUND_VERSION, (int *) arg); - - case SNDCTL_DSP_SYNC: - CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_SYNC\n")); - if (file->f_mode & FMODE_WRITE) - return drain_dac(s, - 0 /*file->f_flags & O_NONBLOCK */ - ); - return 0; - - case SNDCTL_DSP_SETDUPLEX: - return 0; - - case SNDCTL_DSP_GETCAPS: - return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | - DSP_CAP_TRIGGER | DSP_CAP_MMAP, - (int *) arg); - - case SNDCTL_DSP_RESET: - CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_RESET\n")); - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - synchronize_irq(s->irq); - s->dma_dac.count = s->dma_dac.total_bytes = - s->dma_dac.blocks = s->dma_dac.wakeup = 0; - s->dma_dac.swptr = s->dma_dac.hwptr = - (int)(((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_TX)) & M_DMA_CURDSCR_ADDR) - - s->dma_dac.descrtab_phys) / sizeof(serdma_descr_t)); - } - if (file->f_mode & FMODE_READ) { - stop_adc(s); - synchronize_irq(s->irq); - s->dma_adc.count = s->dma_adc.total_bytes = - s->dma_adc.blocks = s->dma_dac.wakeup = 0; - s->dma_adc.swptr = s->dma_adc.hwptr = - (int)(((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_RX)) & M_DMA_CURDSCR_ADDR) - - s->dma_adc.descrtab_phys) / sizeof(serdma_descr_t)); - } - return 0; - - case SNDCTL_DSP_SPEED: - if (get_user(val, (int *) arg)) - return -EFAULT; - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_SPEED val=%d -> 48000\n", val)); - val = 48000; - return put_user(val, (int *) arg); - - case SNDCTL_DSP_STEREO: - if (get_user(val, (int *) arg)) - return -EFAULT; - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_STEREO val=%d\n", val)); - if (file->f_mode & FMODE_READ) { - stop_adc(s); - s->dma_adc.ready = 0; - s->prop_adc.channels = val ? 2 : 1; - } - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - s->dma_dac.ready = 0; - s->prop_dac.channels = val ? 2 : 1; - } - return 0; - - case SNDCTL_DSP_CHANNELS: - if (get_user(val, (int *) arg)) - return -EFAULT; - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_CHANNELS val=%d\n", - val)); - if (val != 0) { - if (file->f_mode & FMODE_READ) { - stop_adc(s); - s->dma_adc.ready = 0; - if (val >= 2) - s->prop_adc.channels = 2; - else - s->prop_adc.channels = 1; - } - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - s->dma_dac.ready = 0; - if (val >= 2) - s->prop_dac.channels = 2; - else - s->prop_dac.channels = 1; - } - } - - if (file->f_mode & FMODE_WRITE) - val = s->prop_dac.channels; - else if (file->f_mode & FMODE_READ) - val = s->prop_adc.channels; - - return put_user(val, (int *) arg); - - case SNDCTL_DSP_GETFMTS: // Returns a mask - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_GETFMT val=0x%.8x\n", - AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 | - AFMT_U8)); - return put_user(AFMT_S16_LE | AFMT_U16_LE | AFMT_S8 | - AFMT_U8, (int *) arg); - - case SNDCTL_DSP_SETFMT: - if (get_user(val, (int *) arg)) - return -EFAULT; - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_SETFMT val=0x%.8x\n", - val)); - if (val != AFMT_QUERY) { - if (file->f_mode & FMODE_READ) { - stop_adc(s); - s->dma_adc.ready = 0; - if (val != AFMT_S16_LE - && val != AFMT_U16_LE && val != AFMT_S8 - && val != AFMT_U8) - val = AFMT_U8; - s->prop_adc.fmt = val; - s->prop_adc.fmt_original = s->prop_adc.fmt; - } - if (file->f_mode & FMODE_WRITE) { - stop_dac(s); - s->dma_dac.ready = 0; - if (val != AFMT_S16_LE - && val != AFMT_U16_LE && val != AFMT_S8 - && val != AFMT_U8) - val = AFMT_U8; - s->prop_dac.fmt = val; - s->prop_dac.fmt_original = s->prop_dac.fmt; - } - } else { - if (file->f_mode & FMODE_WRITE) - val = s->prop_dac.fmt_original; - else if (file->f_mode & FMODE_READ) - val = s->prop_adc.fmt_original; - } - CS_DBGOUT(CS_IOCTL | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_SETFMT return val=0x%.8x\n", - val)); - return put_user(val, (int *) arg); - - case SNDCTL_DSP_POST: - CS_DBGOUT(CS_IOCTL, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): DSP_POST\n")); - return 0; - - case SNDCTL_DSP_GETTRIGGER: - val = 0; - if (file->f_mode & s->ena & FMODE_READ) - val |= PCM_ENABLE_INPUT; - if (file->f_mode & s->ena & FMODE_WRITE) - val |= PCM_ENABLE_OUTPUT; - return put_user(val, (int *) arg); - - case SNDCTL_DSP_SETTRIGGER: - if (get_user(val, (int *) arg)) - return -EFAULT; - if (file->f_mode & FMODE_READ) { - if (val & PCM_ENABLE_INPUT) { - if (!s->dma_adc.ready - && (ret = prog_dmabuf_adc(s))) - return ret; - start_adc(s); - } else - stop_adc(s); - } - if (file->f_mode & FMODE_WRITE) { - if (val & PCM_ENABLE_OUTPUT) { - if (!s->dma_dac.ready - && (ret = prog_dmabuf_dac(s))) - return ret; - start_dac(s); - } else - stop_dac(s); - } - return 0; - - case SNDCTL_DSP_GETOSPACE: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if (!s->dma_dac.ready && (val = prog_dmabuf_dac(s))) - return val; - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - abinfo.fragsize = s->dma_dac.fragsize; - if (s->dma_dac.mapped) - abinfo.bytes = s->dma_dac.sbufsz; - else - abinfo.bytes = - s->dma_dac.sbufsz - s->dma_dac.count; - abinfo.fragstotal = s->dma_dac.numfrag; - abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift; - CS_DBGOUT(CS_FUNCTION | CS_PARMS, 4, printk(KERN_INFO - "cs4297a: cs4297a_ioctl(): GETOSPACE .fragsize=%d .bytes=%d .fragstotal=%d .fragments=%d\n", - abinfo.fragsize,abinfo.bytes,abinfo.fragstotal, - abinfo.fragments)); - spin_unlock_irqrestore(&s->lock, flags); - return copy_to_user((void *) arg, &abinfo, - sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETISPACE: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s))) - return val; - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - if (s->conversion) { - abinfo.fragsize = s->dma_adc.fragsize / 2; - abinfo.bytes = s->dma_adc.count / 2; - abinfo.fragstotal = s->dma_adc.numfrag; - abinfo.fragments = - abinfo.bytes >> (s->dma_adc.fragshift - 1); - } else { - abinfo.fragsize = s->dma_adc.fragsize; - abinfo.bytes = s->dma_adc.count; - abinfo.fragstotal = s->dma_adc.numfrag; - abinfo.fragments = - abinfo.bytes >> s->dma_adc.fragshift; - } - spin_unlock_irqrestore(&s->lock, flags); - return copy_to_user((void *) arg, &abinfo, - sizeof(abinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_NONBLOCK: - spin_lock(&file->f_lock); - file->f_flags |= O_NONBLOCK; - spin_unlock(&file->f_lock); - return 0; - - case SNDCTL_DSP_GETODELAY: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if(!s->dma_dac.ready && prog_dmabuf_dac(s)) - return 0; - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - val = s->dma_dac.count; - spin_unlock_irqrestore(&s->lock, flags); - return put_user(val, (int *) arg); - - case SNDCTL_DSP_GETIPTR: - if (!(file->f_mode & FMODE_READ)) - return -EINVAL; - if(!s->dma_adc.ready && prog_dmabuf_adc(s)) - return 0; - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - cinfo.bytes = s->dma_adc.total_bytes; - if (s->dma_adc.mapped) { - cinfo.blocks = - (cinfo.bytes >> s->dma_adc.fragshift) - - s->dma_adc.blocks; - s->dma_adc.blocks = - cinfo.bytes >> s->dma_adc.fragshift; - } else { - if (s->conversion) { - cinfo.blocks = - s->dma_adc.count / - 2 >> (s->dma_adc.fragshift - 1); - } else - cinfo.blocks = - s->dma_adc.count >> s->dma_adc. - fragshift; - } - if (s->conversion) - cinfo.ptr = s->dma_adc.hwptr / 2; - else - cinfo.ptr = s->dma_adc.hwptr; - if (s->dma_adc.mapped) - s->dma_adc.count &= s->dma_adc.fragsize - 1; - spin_unlock_irqrestore(&s->lock, flags); - return copy_to_user((void *) arg, &cinfo, sizeof(cinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETOPTR: - if (!(file->f_mode & FMODE_WRITE)) - return -EINVAL; - if(!s->dma_dac.ready && prog_dmabuf_dac(s)) - return 0; - spin_lock_irqsave(&s->lock, flags); - cs4297a_update_ptr(s,CS_FALSE); - cinfo.bytes = s->dma_dac.total_bytes; - if (s->dma_dac.mapped) { - cinfo.blocks = - (cinfo.bytes >> s->dma_dac.fragshift) - - s->dma_dac.blocks; - s->dma_dac.blocks = - cinfo.bytes >> s->dma_dac.fragshift; - } else { - cinfo.blocks = - s->dma_dac.count >> s->dma_dac.fragshift; - } - cinfo.ptr = s->dma_dac.hwptr; - if (s->dma_dac.mapped) - s->dma_dac.count &= s->dma_dac.fragsize - 1; - spin_unlock_irqrestore(&s->lock, flags); - return copy_to_user((void *) arg, &cinfo, sizeof(cinfo)) ? -EFAULT : 0; - - case SNDCTL_DSP_GETBLKSIZE: - if (file->f_mode & FMODE_WRITE) { - if ((val = prog_dmabuf_dac(s))) - return val; - return put_user(s->dma_dac.fragsize, (int *) arg); - } - if ((val = prog_dmabuf_adc(s))) - return val; - if (s->conversion) - return put_user(s->dma_adc.fragsize / 2, - (int *) arg); - else - return put_user(s->dma_adc.fragsize, (int *) arg); - - case SNDCTL_DSP_SETFRAGMENT: - if (get_user(val, (int *) arg)) - return -EFAULT; - return 0; // Say OK, but do nothing. - - case SNDCTL_DSP_SUBDIVIDE: - if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) - || (file->f_mode & FMODE_WRITE - && s->dma_dac.subdivision)) return -EINVAL; - if (get_user(val, (int *) arg)) - return -EFAULT; - if (val != 1 && val != 2 && val != 4) - return -EINVAL; - if (file->f_mode & FMODE_READ) - s->dma_adc.subdivision = val; - else if (file->f_mode & FMODE_WRITE) - s->dma_dac.subdivision = val; - return 0; - - case SOUND_PCM_READ_RATE: - if (file->f_mode & FMODE_READ) - return put_user(s->prop_adc.rate, (int *) arg); - else if (file->f_mode & FMODE_WRITE) - return put_user(s->prop_dac.rate, (int *) arg); - - case SOUND_PCM_READ_CHANNELS: - if (file->f_mode & FMODE_READ) - return put_user(s->prop_adc.channels, (int *) arg); - else if (file->f_mode & FMODE_WRITE) - return put_user(s->prop_dac.channels, (int *) arg); - - case SOUND_PCM_READ_BITS: - if (file->f_mode & FMODE_READ) - return - put_user( - (s->prop_adc. - fmt & (AFMT_S8 | AFMT_U8)) ? 8 : 16, - (int *) arg); - else if (file->f_mode & FMODE_WRITE) - return - put_user( - (s->prop_dac. - fmt & (AFMT_S8 | AFMT_U8)) ? 8 : 16, - (int *) arg); - - case SOUND_PCM_WRITE_FILTER: - case SNDCTL_DSP_SETSYNCRO: - case SOUND_PCM_READ_FILTER: - return -EINVAL; - } - return mixer_ioctl(s, cmd, arg); -} - -static long cs4297a_unlocked_ioctl(struct file *file, u_int cmd, u_long arg) -{ - int ret; - - mutex_lock(&swarm_cs4297a_mutex); - ret = cs4297a_ioctl(file, cmd, arg); - mutex_unlock(&swarm_cs4297a_mutex); - - return ret; -} - -static int cs4297a_release(struct inode *inode, struct file *file) -{ - struct cs4297a_state *s = - (struct cs4297a_state *) file->private_data; - - CS_DBGOUT(CS_FUNCTION | CS_RELEASE, 2, printk(KERN_INFO - "cs4297a: cs4297a_release(): inode=0x%.8x file=0x%.8x f_mode=0x%x\n", - (unsigned) inode, (unsigned) file, file->f_mode)); - VALIDATE_STATE(s); - - if (file->f_mode & FMODE_WRITE) { - drain_dac(s, file->f_flags & O_NONBLOCK); - mutex_lock(&s->open_sem_dac); - stop_dac(s); - dealloc_dmabuf(s, &s->dma_dac); - s->open_mode &= ~FMODE_WRITE; - mutex_unlock(&s->open_sem_dac); - wake_up(&s->open_wait_dac); - } - if (file->f_mode & FMODE_READ) { - drain_adc(s, file->f_flags & O_NONBLOCK); - mutex_lock(&s->open_sem_adc); - stop_adc(s); - dealloc_dmabuf(s, &s->dma_adc); - s->open_mode &= ~FMODE_READ; - mutex_unlock(&s->open_sem_adc); - wake_up(&s->open_wait_adc); - } - return 0; -} - -static int cs4297a_locked_open(struct inode *inode, struct file *file) -{ - int minor = iminor(inode); - struct cs4297a_state *s=NULL; - struct list_head *entry; - - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO - "cs4297a: cs4297a_open(): inode=0x%.8x file=0x%.8x f_mode=0x%x\n", - (unsigned) inode, (unsigned) file, file->f_mode)); - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO - "cs4297a: status = %08x\n", (int)__raw_readq(SS_CSR(R_SER_STATUS_DEBUG)))); - - list_for_each(entry, &cs4297a_devs) - { - s = list_entry(entry, struct cs4297a_state, list); - - if (!((s->dev_audio ^ minor) & ~0xf)) - break; - } - if (entry == &cs4297a_devs) - return -ENODEV; - if (!s) { - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, printk(KERN_INFO - "cs4297a: cs4297a_open(): Error - unable to find audio state struct\n")); - return -ENODEV; - } - VALIDATE_STATE(s); - file->private_data = s; - - // wait for device to become free - if (!(file->f_mode & (FMODE_WRITE | FMODE_READ))) { - CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2, printk(KERN_INFO - "cs4297a: cs4297a_open(): Error - must open READ and/or WRITE\n")); - return -ENODEV; - } - if (file->f_mode & FMODE_WRITE) { - if (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX)) != 0) { - printk(KERN_ERR "cs4297a: TX pipe needs to drain\n"); - while (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_TX))) - ; - } - - mutex_lock(&s->open_sem_dac); - while (s->open_mode & FMODE_WRITE) { - if (file->f_flags & O_NONBLOCK) { - mutex_unlock(&s->open_sem_dac); - return -EBUSY; - } - mutex_unlock(&s->open_sem_dac); - oss_broken_sleep_on(&s->open_wait_dac, MAX_SCHEDULE_TIMEOUT); - - if (signal_pending(current)) { - printk("open - sig pending\n"); - return -ERESTARTSYS; - } - mutex_lock(&s->open_sem_dac); - } - } - if (file->f_mode & FMODE_READ) { - mutex_lock(&s->open_sem_adc); - while (s->open_mode & FMODE_READ) { - if (file->f_flags & O_NONBLOCK) { - mutex_unlock(&s->open_sem_adc); - return -EBUSY; - } - mutex_unlock(&s->open_sem_adc); - oss_broken_sleep_on(&s->open_wait_adc, MAX_SCHEDULE_TIMEOUT); - - if (signal_pending(current)) { - printk("open - sig pending\n"); - return -ERESTARTSYS; - } - mutex_lock(&s->open_sem_adc); - } - } - s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); - if (file->f_mode & FMODE_READ) { - s->prop_adc.fmt = AFMT_S16_BE; - s->prop_adc.fmt_original = s->prop_adc.fmt; - s->prop_adc.channels = 2; - s->prop_adc.rate = 48000; - s->conversion = 0; - s->ena &= ~FMODE_READ; - s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = - s->dma_adc.subdivision = 0; - mutex_unlock(&s->open_sem_adc); - - if (prog_dmabuf_adc(s)) { - CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR - "cs4297a: adc Program dmabufs failed.\n")); - cs4297a_release(inode, file); - return -ENOMEM; - } - } - if (file->f_mode & FMODE_WRITE) { - s->prop_dac.fmt = AFMT_S16_BE; - s->prop_dac.fmt_original = s->prop_dac.fmt; - s->prop_dac.channels = 2; - s->prop_dac.rate = 48000; - s->conversion = 0; - s->ena &= ~FMODE_WRITE; - s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = - s->dma_dac.subdivision = 0; - mutex_unlock(&s->open_sem_dac); - - if (prog_dmabuf_dac(s)) { - CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR - "cs4297a: dac Program dmabufs failed.\n")); - cs4297a_release(inode, file); - return -ENOMEM; - } - } - CS_DBGOUT(CS_FUNCTION | CS_OPEN, 2, - printk(KERN_INFO "cs4297a: cs4297a_open()- 0\n")); - return nonseekable_open(inode, file); -} - -static int cs4297a_open(struct inode *inode, struct file *file) -{ - int ret; - - mutex_lock(&swarm_cs4297a_mutex); - ret = cs4297a_open(inode, file); - mutex_unlock(&swarm_cs4297a_mutex); - - return ret; -} - -// ****************************************************************************************** -// Wave (audio) file operations struct. -// ****************************************************************************************** -static const struct file_operations cs4297a_audio_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = cs4297a_read, - .write = cs4297a_write, - .poll = cs4297a_poll, - .unlocked_ioctl = cs4297a_unlocked_ioctl, - .mmap = cs4297a_mmap, - .open = cs4297a_open, - .release = cs4297a_release, -}; - -static void cs4297a_interrupt(int irq, void *dev_id) -{ - struct cs4297a_state *s = (struct cs4297a_state *) dev_id; - u32 status; - - status = __raw_readq(SS_CSR(R_SER_STATUS_DEBUG)); - - CS_DBGOUT(CS_INTERRUPT, 6, printk(KERN_INFO - "cs4297a: cs4297a_interrupt() HISR=0x%.8x\n", status)); - -#if 0 - /* XXXKW what check *should* be done here? */ - if (!(status & (M_SYNCSER_RX_EOP_COUNT | M_SYNCSER_RX_OVERRUN | M_SYNCSER_RX_SYNC_ERR))) { - status = __raw_readq(SS_CSR(R_SER_STATUS)); - printk(KERN_ERR "cs4297a: unexpected interrupt (status %08x)\n", status); - return; - } -#endif - - if (status & M_SYNCSER_RX_SYNC_ERR) { - status = __raw_readq(SS_CSR(R_SER_STATUS)); - printk(KERN_ERR "cs4297a: rx sync error (status %08x)\n", status); - return; - } - - if (status & M_SYNCSER_RX_OVERRUN) { - int newptr, i; - s->stats.rx_ovrrn++; - printk(KERN_ERR "cs4297a: receive FIFO overrun\n"); - - /* Fix things up: get the receive descriptor pool - clean and give them back to the hardware */ - while (__raw_readq(SS_CSR(R_SER_DMA_DSCR_COUNT_RX))) - ; - newptr = (unsigned) (((__raw_readq(SS_CSR(R_SER_DMA_CUR_DSCR_ADDR_RX)) & M_DMA_CURDSCR_ADDR) - - s->dma_adc.descrtab_phys) / sizeof(serdma_descr_t)); - for (i=0; idma_adc.descrtab[i].descr_a &= ~M_DMA_SERRX_SOP; - } - s->dma_adc.swptr = s->dma_adc.hwptr = newptr; - s->dma_adc.count = 0; - s->dma_adc.sb_swptr = s->dma_adc.sb_hwptr = s->dma_adc.sample_buf; - __raw_writeq(DMA_DESCR, SS_CSR(R_SER_DMA_DSCR_COUNT_RX)); - } - - spin_lock(&s->lock); - cs4297a_update_ptr(s,CS_TRUE); - spin_unlock(&s->lock); - - CS_DBGOUT(CS_INTERRUPT, 6, printk(KERN_INFO - "cs4297a: cs4297a_interrupt()-\n")); -} - -#if 0 -static struct initvol { - int mixch; - int vol; -} initvol[] __initdata = { - - {SOUND_MIXER_WRITE_VOLUME, 0x4040}, - {SOUND_MIXER_WRITE_PCM, 0x4040}, - {SOUND_MIXER_WRITE_SYNTH, 0x4040}, - {SOUND_MIXER_WRITE_CD, 0x4040}, - {SOUND_MIXER_WRITE_LINE, 0x4040}, - {SOUND_MIXER_WRITE_LINE1, 0x4040}, - {SOUND_MIXER_WRITE_RECLEV, 0x0000}, - {SOUND_MIXER_WRITE_SPEAKER, 0x4040}, - {SOUND_MIXER_WRITE_MIC, 0x0000} -}; -#endif - -static int __init cs4297a_init(void) -{ - struct cs4297a_state *s; - u32 pwr, id; - mm_segment_t fs; - int rval; - u64 cfg; - int mdio_val; - - CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO - "cs4297a: cs4297a_init_module()+ \n")); - - mdio_val = __raw_readq(KSEG1 + A_MAC_REGISTER(2, R_MAC_MDIO)) & - (M_MAC_MDIO_DIR|M_MAC_MDIO_OUT); - - /* Check syscfg for synchronous serial on port 1 */ - cfg = __raw_readq(KSEG1 + A_SCD_SYSTEM_CFG); - if (!(cfg & M_SYS_SER1_ENABLE)) { - __raw_writeq(cfg | M_SYS_SER1_ENABLE, KSEG1+A_SCD_SYSTEM_CFG); - cfg = __raw_readq(KSEG1 + A_SCD_SYSTEM_CFG); - if (!(cfg & M_SYS_SER1_ENABLE)) { - printk(KERN_INFO "cs4297a: serial port 1 not configured for synchronous operation\n"); - return -1; - } - - printk(KERN_INFO "cs4297a: serial port 1 switching to synchronous operation\n"); - - /* Force the codec (on SWARM) to reset by clearing - GENO, preserving MDIO (no effect on CSWARM) */ - __raw_writeq(mdio_val, KSEG1+A_MAC_REGISTER(2, R_MAC_MDIO)); - udelay(10); - } - - /* Now set GENO */ - __raw_writeq(mdio_val | M_MAC_GENC, KSEG1+A_MAC_REGISTER(2, R_MAC_MDIO)); - /* Give the codec some time to finish resetting (start the bit clock) */ - udelay(100); - - if (!(s = kzalloc(sizeof(struct cs4297a_state), GFP_KERNEL))) { - CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR - "cs4297a: probe() no memory for state struct.\n")); - return -1; - } - s->magic = CS4297a_MAGIC; - init_waitqueue_head(&s->dma_adc.wait); - init_waitqueue_head(&s->dma_dac.wait); - init_waitqueue_head(&s->dma_adc.reg_wait); - init_waitqueue_head(&s->dma_dac.reg_wait); - init_waitqueue_head(&s->open_wait); - init_waitqueue_head(&s->open_wait_adc); - init_waitqueue_head(&s->open_wait_dac); - mutex_init(&s->open_sem_adc); - mutex_init(&s->open_sem_dac); - spin_lock_init(&s->lock); - - s->irq = K_INT_SER_1; - - if (request_irq - (s->irq, cs4297a_interrupt, 0, "Crystal CS4297a", s)) { - CS_DBGOUT(CS_INIT | CS_ERROR, 1, - printk(KERN_ERR "cs4297a: irq %u in use\n", s->irq)); - goto err_irq; - } - if ((s->dev_audio = register_sound_dsp(&cs4297a_audio_fops, -1)) < - 0) { - CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR - "cs4297a: probe() register_sound_dsp() failed.\n")); - goto err_dev1; - } - if ((s->dev_mixer = register_sound_mixer(&cs4297a_mixer_fops, -1)) < - 0) { - CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR - "cs4297a: probe() register_sound_mixer() failed.\n")); - goto err_dev2; - } - - if (ser_init(s) || dma_init(s)) { - CS_DBGOUT(CS_INIT | CS_ERROR, 1, printk(KERN_ERR - "cs4297a: ser_init failed.\n")); - goto err_dev3; - } - - do { - udelay(4000); - rval = cs4297a_read_ac97(s, AC97_POWER_CONTROL, &pwr); - } while (!rval && (pwr != 0xf)); - - if (!rval) { - char *sb1250_duart_present; - - fs = get_fs(); - set_fs(KERNEL_DS); -#if 0 - val = SOUND_MASK_LINE; - mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long) &val); - for (i = 0; i < ARRAY_SIZE(initvol); i++) { - val = initvol[i].vol; - mixer_ioctl(s, initvol[i].mixch, (unsigned long) &val); - } -// cs4297a_write_ac97(s, 0x18, 0x0808); -#else - // cs4297a_write_ac97(s, 0x5e, 0x180); - cs4297a_write_ac97(s, 0x02, 0x0808); - cs4297a_write_ac97(s, 0x18, 0x0808); -#endif - set_fs(fs); - - list_add(&s->list, &cs4297a_devs); - - cs4297a_read_ac97(s, AC97_VENDOR_ID1, &id); - - sb1250_duart_present = symbol_get(sb1250_duart_present); - if (sb1250_duart_present) - sb1250_duart_present[1] = 0; - - printk(KERN_INFO "cs4297a: initialized (vendor id = %x)\n", id); - - CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: cs4297a_init_module()-\n")); - - return 0; - } - - err_dev3: - unregister_sound_mixer(s->dev_mixer); - err_dev2: - unregister_sound_dsp(s->dev_audio); - err_dev1: - free_irq(s->irq, s); - err_irq: - kfree(s); - - printk(KERN_INFO "cs4297a: initialization failed\n"); - - return -1; -} - -static void __exit cs4297a_cleanup(void) -{ - /* - XXXKW - disable_irq, free_irq - drain DMA queue - disable DMA - disable TX/RX - free memory - */ - CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, - printk(KERN_INFO "cs4297a: cleanup_cs4297a() finished\n")); -} - -// --------------------------------------------------------------------- - -MODULE_AUTHOR("Kip Walker, Broadcom Corp."); -MODULE_DESCRIPTION("Cirrus Logic CS4297a Driver for Broadcom SWARM board"); - -// --------------------------------------------------------------------- - -module_init(cs4297a_init); -module_exit(cs4297a_cleanup); diff --git a/sound/oss/sys_timer.c b/sound/oss/sys_timer.c deleted file mode 100644 index d17019d25b99..000000000000 --- a/sound/oss/sys_timer.c +++ /dev/null @@ -1,280 +0,0 @@ -/* - * sound/oss/sys_timer.c - * - * The default timer for the Level 2 sequencer interface - * Uses the (1/HZ sec) timer of kernel. - */ -/* - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - */ -/* - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * Andrew Veliath : adapted tmr2ticks from level 1 sequencer (avoid overflow) - */ -#include -#include "sound_config.h" - -static volatile int opened, tmr_running; -static volatile unsigned int tmr_offs, tmr_ctr; -static volatile unsigned long ticks_offs; -static volatile int curr_tempo, curr_timebase; -static volatile unsigned long curr_ticks; -static volatile unsigned long next_event_time; -static unsigned long prev_event_time; - -static void poll_def_tmr(unsigned long dummy); -static DEFINE_SPINLOCK(lock); -static DEFINE_TIMER(def_tmr, poll_def_tmr, 0, 0); - -static unsigned long -tmr2ticks(int tmr_value) -{ - /* - * Convert timer ticks to MIDI ticks - */ - - unsigned long tmp; - unsigned long scale; - - /* tmr_value (ticks per sec) * - 1000000 (usecs per sec) / HZ (ticks per sec) -=> usecs */ - tmp = tmr_value * (1000000 / HZ); - scale = (60 * 1000000) / (curr_tempo * curr_timebase); /* usecs per MIDI tick */ - return (tmp + scale / 2) / scale; -} - -static void -poll_def_tmr(unsigned long dummy) -{ - if (!opened) - return; - def_tmr.expires = (1) + jiffies; - add_timer(&def_tmr); - - if (!tmr_running) - return; - - spin_lock(&lock); - tmr_ctr++; - curr_ticks = ticks_offs + tmr2ticks(tmr_ctr); - - if (curr_ticks >= next_event_time) { - next_event_time = (unsigned long) -1; - sequencer_timer(0); - } - - spin_unlock(&lock); -} - -static void -tmr_reset(void) -{ - unsigned long flags; - - spin_lock_irqsave(&lock,flags); - tmr_offs = 0; - ticks_offs = 0; - tmr_ctr = 0; - next_event_time = (unsigned long) -1; - prev_event_time = 0; - curr_ticks = 0; - spin_unlock_irqrestore(&lock,flags); -} - -static int -def_tmr_open(int dev, int mode) -{ - if (opened) - return -EBUSY; - - tmr_reset(); - curr_tempo = 60; - curr_timebase = 100; - opened = 1; - { - def_tmr.expires = (1) + jiffies; - add_timer(&def_tmr); - } - - return 0; -} - -static void -def_tmr_close(int dev) -{ - opened = tmr_running = 0; - del_timer(&def_tmr); -} - -static int -def_tmr_event(int dev, unsigned char *event) -{ - unsigned char cmd = event[1]; - unsigned long parm = *(int *) &event[4]; - - switch (cmd) - { - case TMR_WAIT_REL: - parm += prev_event_time; - case TMR_WAIT_ABS: - if (parm > 0) - { - long time; - - if (parm <= curr_ticks) /* It's the time */ - return TIMER_NOT_ARMED; - - time = parm; - next_event_time = prev_event_time = time; - - return TIMER_ARMED; - } - break; - - case TMR_START: - tmr_reset(); - tmr_running = 1; - break; - - case TMR_STOP: - tmr_running = 0; - break; - - case TMR_CONTINUE: - tmr_running = 1; - break; - - case TMR_TEMPO: - if (parm) - { - if (parm < 8) - parm = 8; - if (parm > 360) - parm = 360; - tmr_offs = tmr_ctr; - ticks_offs += tmr2ticks(tmr_ctr); - tmr_ctr = 0; - curr_tempo = parm; - } - break; - - case TMR_ECHO: - seq_copy_to_input(event, 8); - break; - - default:; - } - - return TIMER_NOT_ARMED; -} - -static unsigned long -def_tmr_get_time(int dev) -{ - if (!opened) - return 0; - - return curr_ticks; -} - -/* same as sound_timer.c:timer_ioctl!? */ -static int def_tmr_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - int __user *p = arg; - int val; - - switch (cmd) { - case SNDCTL_TMR_SOURCE: - return __put_user(TMR_INTERNAL, p); - - case SNDCTL_TMR_START: - tmr_reset(); - tmr_running = 1; - return 0; - - case SNDCTL_TMR_STOP: - tmr_running = 0; - return 0; - - case SNDCTL_TMR_CONTINUE: - tmr_running = 1; - return 0; - - case SNDCTL_TMR_TIMEBASE: - if (__get_user(val, p)) - return -EFAULT; - if (val) { - if (val < 1) - val = 1; - if (val > 1000) - val = 1000; - curr_timebase = val; - } - return __put_user(curr_timebase, p); - - case SNDCTL_TMR_TEMPO: - if (__get_user(val, p)) - return -EFAULT; - if (val) { - if (val < 8) - val = 8; - if (val > 250) - val = 250; - tmr_offs = tmr_ctr; - ticks_offs += tmr2ticks(tmr_ctr); - tmr_ctr = 0; - curr_tempo = val; - reprogram_timer(); - } - return __put_user(curr_tempo, p); - - case SNDCTL_SEQ_CTRLRATE: - if (__get_user(val, p)) - return -EFAULT; - if (val != 0) /* Can't change */ - return -EINVAL; - val = ((curr_tempo * curr_timebase) + 30) / 60; - return __put_user(val, p); - - case SNDCTL_SEQ_GETTIME: - return __put_user(curr_ticks, p); - - case SNDCTL_TMR_METRONOME: - /* NOP */ - break; - - default:; - } - return -EINVAL; -} - -static void -def_tmr_arm(int dev, long time) -{ - if (time < 0) - time = curr_ticks + 1; - else if (time <= curr_ticks) /* It's the time */ - return; - - next_event_time = prev_event_time = time; - - return; -} - -struct sound_timer_operations default_sound_timer = -{ - .owner = THIS_MODULE, - .info = {"System clock", 0}, - .priority = 0, /* Priority */ - .devlink = 0, /* Local device link */ - .open = def_tmr_open, - .close = def_tmr_close, - .event = def_tmr_event, - .get_time = def_tmr_get_time, - .ioctl = def_tmr_ioctl, - .arm_timer = def_tmr_arm -}; diff --git a/sound/oss/trix.c b/sound/oss/trix.c deleted file mode 100644 index a57bc635d758..000000000000 --- a/sound/oss/trix.c +++ /dev/null @@ -1,525 +0,0 @@ -/* - * sound/oss/trix.c - * - * Low level driver for the MediaTrix AudioTrix Pro - * (MT-0002-PC Control Chip) - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * Changes - * Alan Cox Modularisation, cleanup. - * Christoph Hellwig Adapted to module_init/module_exit - * Arnaldo C. de Melo Got rid of attach_uart401 - */ - -#include -#include - -#include "sound_config.h" -#include "sb.h" -#include "sound_firmware.h" - -#include "ad1848.h" -#include "mpu401.h" - -#include "trix_boot.h" - -static int mpu; - -static bool joystick; - -static unsigned char trix_read(int addr) -{ - outb(((unsigned char) addr), 0x390); /* MT-0002-PC ASIC address */ - return inb(0x391); /* MT-0002-PC ASIC data */ -} - -static void trix_write(int addr, int data) -{ - outb(((unsigned char) addr), 0x390); /* MT-0002-PC ASIC address */ - outb(((unsigned char) data), 0x391); /* MT-0002-PC ASIC data */ -} - -static void download_boot(int base) -{ - int i = 0, n = trix_boot_len; - - if (trix_boot_len == 0) - return; - - trix_write(0xf8, 0x00); /* ??????? */ - outb((0x01), base + 6); /* Clear the internal data pointer */ - outb((0x00), base + 6); /* Restart */ - - /* - * Write the boot code to the RAM upload/download register. - * Each write increments the internal data pointer. - */ - outb((0x01), base + 6); /* Clear the internal data pointer */ - outb((0x1A), 0x390); /* Select RAM download/upload port */ - - for (i = 0; i < n; i++) - outb((trix_boot[i]), 0x391); - for (i = n; i < 10016; i++) /* Clear up to first 16 bytes of data RAM */ - outb((0x00), 0x391); - outb((0x00), base + 6); /* Reset */ - outb((0x50), 0x390); /* ?????? */ - -} - -static int trix_set_wss_port(struct address_info *hw_config) -{ - unsigned char addr_bits; - - if (trix_read(0x15) != 0x71) /* No ASIC signature */ - { - MDB(printk(KERN_ERR "No AudioTrix ASIC signature found\n")); - return 0; - } - - /* - * Reset some registers. - */ - - trix_write(0x13, 0); - trix_write(0x14, 0); - - /* - * Configure the ASIC to place the codec to the proper I/O location - */ - - switch (hw_config->io_base) - { - case 0x530: - addr_bits = 0; - break; - case 0x604: - addr_bits = 1; - break; - case 0xE80: - addr_bits = 2; - break; - case 0xF40: - addr_bits = 3; - break; - default: - return 0; - } - - trix_write(0x19, (trix_read(0x19) & 0x03) | addr_bits); - return 1; -} - -/* - * Probe and attach routines for the Windows Sound System mode of - * AudioTrix Pro - */ - -static int __init init_trix_wss(struct address_info *hw_config) -{ - static unsigned char dma_bits[4] = { - 1, 2, 0, 3 - }; - struct resource *ports; - int config_port = hw_config->io_base + 0; - int dma1 = hw_config->dma, dma2 = hw_config->dma2; - int old_num_mixers = num_mixers; - u8 config, bits; - int ret; - - switch(hw_config->irq) { - case 7: - bits = 8; - break; - case 9: - bits = 0x10; - break; - case 10: - bits = 0x18; - break; - case 11: - bits = 0x20; - break; - default: - printk(KERN_ERR "AudioTrix: Bad WSS IRQ %d\n", hw_config->irq); - return 0; - } - - switch (dma1) { - case 0: - case 1: - case 3: - break; - default: - printk(KERN_ERR "AudioTrix: Bad WSS DMA %d\n", dma1); - return 0; - } - - switch (dma2) { - case -1: - case 0: - case 1: - case 3: - break; - default: - printk(KERN_ERR "AudioTrix: Bad capture DMA %d\n", dma2); - return 0; - } - - /* - * Check if the IO port returns valid signature. The original MS Sound - * system returns 0x04 while some cards (AudioTrix Pro for example) - * return 0x00. - */ - ports = request_region(hw_config->io_base + 4, 4, "ad1848"); - if (!ports) { - printk(KERN_ERR "AudioTrix: MSS I/O port conflict (%x)\n", hw_config->io_base); - return 0; - } - - if (!request_region(hw_config->io_base, 4, "MSS config")) { - printk(KERN_ERR "AudioTrix: MSS I/O port conflict (%x)\n", hw_config->io_base); - release_region(hw_config->io_base + 4, 4); - return 0; - } - - if (!trix_set_wss_port(hw_config)) - goto fail; - - config = inb(hw_config->io_base + 3); - - if ((config & 0x3f) != 0x00) - { - MDB(printk(KERN_ERR "No MSS signature detected on port 0x%x\n", hw_config->io_base)); - goto fail; - } - - /* - * Check that DMA0 is not in use with a 8 bit board. - */ - - if (dma1 == 0 && config & 0x80) - { - printk(KERN_ERR "AudioTrix: Can't use DMA0 with a 8 bit card slot\n"); - goto fail; - } - if (hw_config->irq > 9 && config & 0x80) - { - printk(KERN_ERR "AudioTrix: Can't use IRQ%d with a 8 bit card slot\n", hw_config->irq); - goto fail; - } - - ret = ad1848_detect(ports, NULL, hw_config->osp); - if (!ret) - goto fail; - - if (joystick==1) - trix_write(0x15, 0x80); - - /* - * Set the IRQ and DMA addresses. - */ - - outb((bits | 0x40), config_port); - - if (dma2 == -1 || dma2 == dma1) - { - bits |= dma_bits[dma1]; - dma2 = dma1; - } - else - { - unsigned char tmp; - - tmp = trix_read(0x13) & ~30; - trix_write(0x13, tmp | 0x80 | (dma1 << 4)); - - tmp = trix_read(0x14) & ~30; - trix_write(0x14, tmp | 0x80 | (dma2 << 4)); - } - - outb((bits), config_port); /* Write IRQ+DMA setup */ - - hw_config->slots[0] = ad1848_init("AudioTrix Pro", ports, - hw_config->irq, - dma1, - dma2, - 0, - hw_config->osp, - THIS_MODULE); - - if (num_mixers > old_num_mixers) /* Mixer got installed */ - { - AD1848_REROUTE(SOUND_MIXER_LINE1, SOUND_MIXER_LINE); /* Line in */ - AD1848_REROUTE(SOUND_MIXER_LINE2, SOUND_MIXER_CD); - AD1848_REROUTE(SOUND_MIXER_LINE3, SOUND_MIXER_SYNTH); /* OPL4 */ - AD1848_REROUTE(SOUND_MIXER_SPEAKER, SOUND_MIXER_ALTPCM); /* SB */ - } - return 1; - -fail: - release_region(hw_config->io_base, 4); - release_region(hw_config->io_base + 4, 4); - return 0; -} - -static int __init probe_trix_sb(struct address_info *hw_config) -{ - - int tmp; - unsigned char conf; - extern int sb_be_quiet; - int old_quiet; - static signed char irq_translate[] = { - -1, -1, -1, 0, 1, 2, -1, 3 - }; - - if (trix_boot_len == 0) - return 0; /* No boot code -> no fun */ - - if ((hw_config->io_base & 0xffffff8f) != 0x200) - return 0; - - tmp = hw_config->irq; - if (tmp > 7) - return 0; - if (irq_translate[tmp] == -1) - return 0; - - tmp = hw_config->dma; - if (tmp != 1 && tmp != 3) - return 0; - - if (!request_region(hw_config->io_base, 16, "soundblaster")) { - printk(KERN_ERR "AudioTrix: SB I/O port conflict (%x)\n", hw_config->io_base); - return 0; - } - - conf = 0x84; /* DMA and IRQ enable */ - conf |= hw_config->io_base & 0x70; /* I/O address bits */ - conf |= irq_translate[hw_config->irq]; - if (hw_config->dma == 3) - conf |= 0x08; - trix_write(0x1b, conf); - - download_boot(hw_config->io_base); - - hw_config->name = "AudioTrix SB"; - if (!sb_dsp_detect(hw_config, 0, 0, NULL)) { - release_region(hw_config->io_base, 16); - return 0; - } - - hw_config->driver_use_1 = SB_NO_MIDI | SB_NO_MIXER | SB_NO_RECORDING; - - /* Prevent false alarms */ - old_quiet = sb_be_quiet; - sb_be_quiet = 1; - - sb_dsp_init(hw_config, THIS_MODULE); - - sb_be_quiet = old_quiet; - return 1; -} - -static int __init probe_trix_mpu(struct address_info *hw_config) -{ - unsigned char conf; - static int irq_bits[] = { - -1, -1, -1, 1, 2, 3, -1, 4, -1, 5 - }; - - if (hw_config->irq > 9) - { - printk(KERN_ERR "AudioTrix: Bad MPU IRQ %d\n", hw_config->irq); - return 0; - } - if (irq_bits[hw_config->irq] == -1) - { - printk(KERN_ERR "AudioTrix: Bad MPU IRQ %d\n", hw_config->irq); - return 0; - } - switch (hw_config->io_base) - { - case 0x330: - conf = 0x00; - break; - case 0x370: - conf = 0x04; - break; - case 0x3b0: - conf = 0x08; - break; - case 0x3f0: - conf = 0x0c; - break; - default: - return 0; /* Invalid port */ - } - - conf |= irq_bits[hw_config->irq] << 4; - trix_write(0x19, (trix_read(0x19) & 0x83) | conf); - hw_config->name = "AudioTrix Pro"; - return probe_uart401(hw_config, THIS_MODULE); -} - -static void __exit unload_trix_wss(struct address_info *hw_config) -{ - int dma2 = hw_config->dma2; - - if (dma2 == -1) - dma2 = hw_config->dma; - - release_region(0x390, 2); - release_region(hw_config->io_base, 4); - - ad1848_unload(hw_config->io_base + 4, - hw_config->irq, - hw_config->dma, - dma2, - 0); - sound_unload_audiodev(hw_config->slots[0]); -} - -static inline void __exit unload_trix_mpu(struct address_info *hw_config) -{ - unload_uart401(hw_config); -} - -static inline void __exit unload_trix_sb(struct address_info *hw_config) -{ - sb_dsp_unload(hw_config, mpu); -} - -static struct address_info cfg; -static struct address_info cfg2; -static struct address_info cfg_mpu; - -static int sb; -static int fw_load; - -static int __initdata io = -1; -static int __initdata irq = -1; -static int __initdata dma = -1; -static int __initdata dma2 = -1; /* Set this for modules that need it */ -static int __initdata sb_io = -1; -static int __initdata sb_dma = -1; -static int __initdata sb_irq = -1; -static int __initdata mpu_io = -1; -static int __initdata mpu_irq = -1; - -module_param_hw(io, int, ioport, 0); -module_param_hw(irq, int, irq, 0); -module_param_hw(dma, int, dma, 0); -module_param_hw(dma2, int, dma, 0); -module_param_hw(sb_io, int, ioport, 0); -module_param_hw(sb_dma, int, dma, 0); -module_param_hw(sb_irq, int, irq, 0); -module_param_hw(mpu_io, int, ioport, 0); -module_param_hw(mpu_irq, int, irq, 0); -module_param(joystick, bool, 0); - -static int __init init_trix(void) -{ - printk(KERN_INFO "MediaTrix audio driver Copyright (C) by Hannu Savolainen 1993-1996\n"); - - cfg.io_base = io; - cfg.irq = irq; - cfg.dma = dma; - cfg.dma2 = dma2; - - cfg2.io_base = sb_io; - cfg2.irq = sb_irq; - cfg2.dma = sb_dma; - - cfg_mpu.io_base = mpu_io; - cfg_mpu.irq = mpu_irq; - - if (cfg.io_base == -1 || cfg.dma == -1 || cfg.irq == -1) { - printk(KERN_INFO "I/O, IRQ, DMA and type are mandatory\n"); - return -EINVAL; - } - - if (cfg2.io_base != -1 && (cfg2.irq == -1 || cfg2.dma == -1)) { - printk(KERN_INFO "CONFIG_SB_IRQ and CONFIG_SB_DMA must be specified if SB_IO is set.\n"); - return -EINVAL; - } - if (cfg_mpu.io_base != -1 && cfg_mpu.irq == -1) { - printk(KERN_INFO "CONFIG_MPU_IRQ must be specified if MPU_IO is set.\n"); - return -EINVAL; - } - if (!trix_boot) - { - fw_load = 1; - trix_boot_len = mod_firmware_load("/etc/sound/trxpro.bin", - (char **) &trix_boot); - } - - if (!request_region(0x390, 2, "AudioTrix")) { - printk(KERN_ERR "AudioTrix: Config port I/O conflict\n"); - return -ENODEV; - } - - if (!init_trix_wss(&cfg)) { - release_region(0x390, 2); - return -ENODEV; - } - - /* - * We must attach in the right order to get the firmware - * loaded up in time. - */ - - if (cfg2.io_base != -1) { - sb = probe_trix_sb(&cfg2); - } - - if (cfg_mpu.io_base != -1) - mpu = probe_trix_mpu(&cfg_mpu); - - return 0; -} - -static void __exit cleanup_trix(void) -{ - if (fw_load) - vfree(trix_boot); - if (sb) - unload_trix_sb(&cfg2); - if (mpu) - unload_trix_mpu(&cfg_mpu); - unload_trix_wss(&cfg); -} - -module_init(init_trix); -module_exit(cleanup_trix); - -#ifndef MODULE -static int __init setup_trix (char *str) -{ - /* io, irq, dma, dma2, sb_io, sb_irq, sb_dma, mpu_io, mpu_irq */ - int ints[9]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - io = ints[1]; - irq = ints[2]; - dma = ints[3]; - dma2 = ints[4]; - sb_io = ints[5]; - sb_irq = ints[6]; - sb_dma = ints[6]; - mpu_io = ints[7]; - mpu_irq = ints[8]; - - return 1; -} - -__setup("trix=", setup_trix); -#endif -MODULE_LICENSE("GPL"); diff --git a/sound/oss/tuning.h b/sound/oss/tuning.h deleted file mode 100644 index a73e3dd39f9a..000000000000 --- a/sound/oss/tuning.h +++ /dev/null @@ -1,23 +0,0 @@ -static unsigned short semitone_tuning[24] = -{ -/* 0 */ 10000, 10595, 11225, 11892, 12599, 13348, 14142, 14983, -/* 8 */ 15874, 16818, 17818, 18877, 20000, 21189, 22449, 23784, -/* 16 */ 25198, 26697, 28284, 29966, 31748, 33636, 35636, 37755 -}; - -static unsigned short cent_tuning[100] = -{ -/* 0 */ 10000, 10006, 10012, 10017, 10023, 10029, 10035, 10041, -/* 8 */ 10046, 10052, 10058, 10064, 10070, 10075, 10081, 10087, -/* 16 */ 10093, 10099, 10105, 10110, 10116, 10122, 10128, 10134, -/* 24 */ 10140, 10145, 10151, 10157, 10163, 10169, 10175, 10181, -/* 32 */ 10187, 10192, 10198, 10204, 10210, 10216, 10222, 10228, -/* 40 */ 10234, 10240, 10246, 10251, 10257, 10263, 10269, 10275, -/* 48 */ 10281, 10287, 10293, 10299, 10305, 10311, 10317, 10323, -/* 56 */ 10329, 10335, 10341, 10347, 10353, 10359, 10365, 10371, -/* 64 */ 10377, 10383, 10389, 10395, 10401, 10407, 10413, 10419, -/* 72 */ 10425, 10431, 10437, 10443, 10449, 10455, 10461, 10467, -/* 80 */ 10473, 10479, 10485, 10491, 10497, 10503, 10509, 10515, -/* 88 */ 10521, 10528, 10534, 10540, 10546, 10552, 10558, 10564, -/* 96 */ 10570, 10576, 10582, 10589 -}; diff --git a/sound/oss/uart401.c b/sound/oss/uart401.c deleted file mode 100644 index 83dcc85b8688..000000000000 --- a/sound/oss/uart401.c +++ /dev/null @@ -1,477 +0,0 @@ -/* - * sound/oss/uart401.c - * - * MPU-401 UART driver (formerly uart401_midi.c) - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * Changes: - * Alan Cox Reformatted, removed sound_mem usage, use normal Linux - * interrupt allocation. Protect against bogus unload - * Fixed to allow IRQ > 15 - * Christoph Hellwig Adapted to module_init/module_exit - * Arnaldo C. de Melo got rid of check_region - * - * Status: - * Untested - */ - -#include -#include -#include -#include -#include -#include "sound_config.h" - -#include "mpu401.h" - -struct uart401_devc -{ - int base; - int irq; - int *osp; - void (*midi_input_intr) (int dev, unsigned char data); - int opened, disabled; - volatile unsigned char input_byte; - int my_dev; - int share_irq; - spinlock_t lock; -}; - -#define DATAPORT (devc->base) -#define COMDPORT (devc->base+1) -#define STATPORT (devc->base+1) - -static int uart401_status(struct uart401_devc *devc) -{ - return inb(STATPORT); -} - -#define input_avail(devc) (!(uart401_status(devc)&INPUT_AVAIL)) -#define output_ready(devc) (!(uart401_status(devc)&OUTPUT_READY)) - -static void uart401_cmd(struct uart401_devc *devc, unsigned char cmd) -{ - outb((cmd), COMDPORT); -} - -static int uart401_read(struct uart401_devc *devc) -{ - return inb(DATAPORT); -} - -static void uart401_write(struct uart401_devc *devc, unsigned char byte) -{ - outb((byte), DATAPORT); -} - -#define OUTPUT_READY 0x40 -#define INPUT_AVAIL 0x80 -#define MPU_ACK 0xFE -#define MPU_RESET 0xFF -#define UART_MODE_ON 0x3F - -static int reset_uart401(struct uart401_devc *devc); -static void enter_uart_mode(struct uart401_devc *devc); - -static void uart401_input_loop(struct uart401_devc *devc) -{ - int work_limit=30000; - - while (input_avail(devc) && --work_limit) - { - unsigned char c = uart401_read(devc); - - if (c == MPU_ACK) - devc->input_byte = c; - else if (devc->opened & OPEN_READ && devc->midi_input_intr) - devc->midi_input_intr(devc->my_dev, c); - } - if(work_limit==0) - printk(KERN_WARNING "Too much work in interrupt on uart401 (0x%X). UART jabbering ??\n", devc->base); -} - -irqreturn_t uart401intr(int irq, void *dev_id) -{ - struct uart401_devc *devc = dev_id; - - if (devc == NULL) - { - printk(KERN_ERR "uart401: bad devc\n"); - return IRQ_NONE; - } - - if (input_avail(devc)) - uart401_input_loop(devc); - return IRQ_HANDLED; -} - -static int -uart401_open(int dev, int mode, - void (*input) (int dev, unsigned char data), - void (*output) (int dev) -) -{ - struct uart401_devc *devc = (struct uart401_devc *) - midi_devs[dev]->devc; - - if (devc->opened) - return -EBUSY; - - /* Flush the UART */ - - while (input_avail(devc)) - uart401_read(devc); - - devc->midi_input_intr = input; - devc->opened = mode; - enter_uart_mode(devc); - devc->disabled = 0; - - return 0; -} - -static void uart401_close(int dev) -{ - struct uart401_devc *devc = (struct uart401_devc *) - midi_devs[dev]->devc; - - reset_uart401(devc); - devc->opened = 0; -} - -static int uart401_out(int dev, unsigned char midi_byte) -{ - int timeout; - unsigned long flags; - struct uart401_devc *devc = (struct uart401_devc *) - midi_devs[dev]->devc; - - if (devc->disabled) - return 1; - /* - * Test for input since pending input seems to block the output. - */ - - spin_lock_irqsave(&devc->lock,flags); - if (input_avail(devc)) - uart401_input_loop(devc); - - spin_unlock_irqrestore(&devc->lock,flags); - - /* - * Sometimes it takes about 13000 loops before the output becomes ready - * (After reset). Normally it takes just about 10 loops. - */ - - for (timeout = 30000; timeout > 0 && !output_ready(devc); timeout--); - - if (!output_ready(devc)) - { - printk(KERN_WARNING "uart401: Timeout - Device not responding\n"); - devc->disabled = 1; - reset_uart401(devc); - enter_uart_mode(devc); - return 1; - } - uart401_write(devc, midi_byte); - return 1; -} - -static inline int uart401_start_read(int dev) -{ - return 0; -} - -static inline int uart401_end_read(int dev) -{ - return 0; -} - -static inline void uart401_kick(int dev) -{ -} - -static inline int uart401_buffer_status(int dev) -{ - return 0; -} - -#define MIDI_SYNTH_NAME "MPU-401 UART" -#define MIDI_SYNTH_CAPS SYNTH_CAP_INPUT -#include "midi_synth.h" - -static const struct midi_operations uart401_operations = -{ - .owner = THIS_MODULE, - .info = {"MPU-401 (UART) MIDI", 0, 0, SNDCARD_MPU401}, - .converter = &std_midi_synth, - .in_info = {0}, - .open = uart401_open, - .close = uart401_close, - .outputc = uart401_out, - .start_read = uart401_start_read, - .end_read = uart401_end_read, - .kick = uart401_kick, - .buffer_status = uart401_buffer_status, -}; - -static void enter_uart_mode(struct uart401_devc *devc) -{ - int ok, timeout; - unsigned long flags; - - spin_lock_irqsave(&devc->lock,flags); - for (timeout = 30000; timeout > 0 && !output_ready(devc); timeout--); - - devc->input_byte = 0; - uart401_cmd(devc, UART_MODE_ON); - - ok = 0; - for (timeout = 50000; timeout > 0 && !ok; timeout--) - if (devc->input_byte == MPU_ACK) - ok = 1; - else if (input_avail(devc)) - if (uart401_read(devc) == MPU_ACK) - ok = 1; - - spin_unlock_irqrestore(&devc->lock,flags); -} - -static int reset_uart401(struct uart401_devc *devc) -{ - int ok, timeout, n; - - /* - * Send the RESET command. Try again if no success at the first time. - */ - - ok = 0; - - for (n = 0; n < 2 && !ok; n++) - { - for (timeout = 30000; timeout > 0 && !output_ready(devc); timeout--); - devc->input_byte = 0; - uart401_cmd(devc, MPU_RESET); - - /* - * Wait at least 25 msec. This method is not accurate so let's make the - * loop bit longer. Cannot sleep since this is called during boot. - */ - - for (timeout = 50000; timeout > 0 && !ok; timeout--) - { - if (devc->input_byte == MPU_ACK) /* Interrupt */ - ok = 1; - else if (input_avail(devc)) - { - if (uart401_read(devc) == MPU_ACK) - ok = 1; - } - } - } - - /* Flush input before enabling interrupts */ - if (ok) - uart401_input_loop(devc); - else - DDB(printk("Reset UART401 failed - No hardware detected.\n")); - - return ok; -} - -int probe_uart401(struct address_info *hw_config, struct module *owner) -{ - struct uart401_devc *devc; - char *name = "MPU-401 (UART) MIDI"; - int ok = 0; - unsigned long flags; - - DDB(printk("Entered probe_uart401()\n")); - - /* Default to "not found" */ - hw_config->slots[4] = -1; - - if (!request_region(hw_config->io_base, 4, "MPU-401 UART")) { - printk(KERN_INFO "uart401: could not request_region(%d, 4)\n", hw_config->io_base); - return 0; - } - - devc = kmalloc(sizeof(struct uart401_devc), GFP_KERNEL); - if (!devc) { - printk(KERN_WARNING "uart401: Can't allocate memory\n"); - goto cleanup_region; - } - - devc->base = hw_config->io_base; - devc->irq = hw_config->irq; - devc->osp = hw_config->osp; - devc->midi_input_intr = NULL; - devc->opened = 0; - devc->input_byte = 0; - devc->my_dev = 0; - devc->share_irq = 0; - spin_lock_init(&devc->lock); - - spin_lock_irqsave(&devc->lock,flags); - ok = reset_uart401(devc); - spin_unlock_irqrestore(&devc->lock,flags); - - if (!ok) - goto cleanup_devc; - - if (hw_config->name) - name = hw_config->name; - - if (devc->irq < 0) { - devc->share_irq = 1; - devc->irq *= -1; - } else - devc->share_irq = 0; - - if (!devc->share_irq) - if (request_irq(devc->irq, uart401intr, 0, "MPU-401 UART", devc) < 0) { - printk(KERN_WARNING "uart401: Failed to allocate IRQ%d\n", devc->irq); - devc->share_irq = 1; - } - devc->my_dev = sound_alloc_mididev(); - enter_uart_mode(devc); - - if (devc->my_dev == -1) { - printk(KERN_INFO "uart401: Too many midi devices detected\n"); - goto cleanup_irq; - } - conf_printf(name, hw_config); - midi_devs[devc->my_dev] = kmemdup(&uart401_operations, - sizeof(struct midi_operations), - GFP_KERNEL); - if (!midi_devs[devc->my_dev]) { - printk(KERN_ERR "uart401: Failed to allocate memory\n"); - goto cleanup_unload_mididev; - } - - if (owner) - midi_devs[devc->my_dev]->owner = owner; - - midi_devs[devc->my_dev]->devc = devc; - midi_devs[devc->my_dev]->converter = kmemdup(&std_midi_synth, - sizeof(struct synth_operations), - GFP_KERNEL); - - if (!midi_devs[devc->my_dev]->converter) { - printk(KERN_WARNING "uart401: Failed to allocate memory\n"); - goto cleanup_midi_devs; - } - strcpy(midi_devs[devc->my_dev]->info.name, name); - midi_devs[devc->my_dev]->converter->id = "UART401"; - midi_devs[devc->my_dev]->converter->midi_dev = devc->my_dev; - - if (owner) - midi_devs[devc->my_dev]->converter->owner = owner; - - hw_config->slots[4] = devc->my_dev; - sequencer_init(); - devc->opened = 0; - return 1; -cleanup_midi_devs: - kfree(midi_devs[devc->my_dev]); -cleanup_unload_mididev: - sound_unload_mididev(devc->my_dev); -cleanup_irq: - if (!devc->share_irq) - free_irq(devc->irq, devc); -cleanup_devc: - kfree(devc); -cleanup_region: - release_region(hw_config->io_base, 4); - return 0; -} - -void unload_uart401(struct address_info *hw_config) -{ - struct uart401_devc *devc; - int n=hw_config->slots[4]; - - /* Not set up */ - if(n==-1 || midi_devs[n]==NULL) - return; - - /* Not allocated (erm ??) */ - - devc = midi_devs[hw_config->slots[4]]->devc; - if (devc == NULL) - return; - - reset_uart401(devc); - release_region(hw_config->io_base, 4); - - if (!devc->share_irq) - free_irq(devc->irq, devc); - kfree(midi_devs[devc->my_dev]->converter); - kfree(midi_devs[devc->my_dev]); - kfree(devc); - - /* This kills midi_devs[x] */ - sound_unload_mididev(hw_config->slots[4]); -} - -EXPORT_SYMBOL(probe_uart401); -EXPORT_SYMBOL(unload_uart401); -EXPORT_SYMBOL(uart401intr); - -static struct address_info cfg_mpu; - -static int io = -1; -static int irq = -1; - -module_param_hw(io, int, ioport, 0444); -module_param_hw(irq, int, irq, 0444); - - -static int __init init_uart401(void) -{ - cfg_mpu.irq = irq; - cfg_mpu.io_base = io; - - /* Can be loaded either for module use or to provide functions - to others */ - if (cfg_mpu.io_base != -1 && cfg_mpu.irq != -1) { - printk(KERN_INFO "MPU-401 UART driver Copyright (C) Hannu Savolainen 1993-1997"); - if (!probe_uart401(&cfg_mpu, THIS_MODULE)) - return -ENODEV; - } - - return 0; -} - -static void __exit cleanup_uart401(void) -{ - if (cfg_mpu.io_base != -1 && cfg_mpu.irq != -1) - unload_uart401(&cfg_mpu); -} - -module_init(init_uart401); -module_exit(cleanup_uart401); - -#ifndef MODULE -static int __init setup_uart401(char *str) -{ - /* io, irq */ - int ints[3]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - io = ints[1]; - irq = ints[2]; - - return 1; -} - -__setup("uart401=", setup_uart401); -#endif -MODULE_LICENSE("GPL"); diff --git a/sound/oss/uart6850.c b/sound/oss/uart6850.c deleted file mode 100644 index eda32d7eddbd..000000000000 --- a/sound/oss/uart6850.c +++ /dev/null @@ -1,361 +0,0 @@ -/* - * sound/oss/uart6850.c - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * Extended by Alan Cox for Red Hat Software. Now a loadable MIDI driver. - * 28/4/97 - (C) Copyright Alan Cox. Released under the GPL version 2. - * - * Alan Cox: Updated for new modular code. Removed snd_* irq handling. Now - * uses native linux resources - * Christoph Hellwig: Adapted to module_init/module_exit - * Jeff Garzik: Made it work again, in theory - * FIXME: If the request_irq() succeeds, the probe succeeds. Ug. - * - * Status: Testing required (no shit -jgarzik) - * - * - */ - -#include -#include -#include -#include -/* Mon Nov 22 22:38:35 MET 1993 marco@driq.home.usn.nl: - * added 6850 support, used with COVOX SoundMaster II and custom cards. - */ - -#include "sound_config.h" - -static int uart6850_base = 0x330; - -static int *uart6850_osp; - -#define DATAPORT (uart6850_base) -#define COMDPORT (uart6850_base+1) -#define STATPORT (uart6850_base+1) - -static int uart6850_status(void) -{ - return inb(STATPORT); -} - -#define input_avail() (uart6850_status()&INPUT_AVAIL) -#define output_ready() (uart6850_status()&OUTPUT_READY) - -static void uart6850_cmd(unsigned char cmd) -{ - outb(cmd, COMDPORT); -} - -static int uart6850_read(void) -{ - return inb(DATAPORT); -} - -static void uart6850_write(unsigned char byte) -{ - outb(byte, DATAPORT); -} - -#define OUTPUT_READY 0x02 /* Mask for data ready Bit */ -#define INPUT_AVAIL 0x01 /* Mask for Data Send Ready Bit */ - -#define UART_RESET 0x95 -#define UART_MODE_ON 0x03 - -static int uart6850_opened; -static int uart6850_irq; -static int uart6850_detected; -static int my_dev; -static DEFINE_SPINLOCK(lock); - -static void (*midi_input_intr) (int dev, unsigned char data); -static void poll_uart6850(unsigned long dummy); - - -static DEFINE_TIMER(uart6850_timer, poll_uart6850, 0, 0); - -static void uart6850_input_loop(void) -{ - int count = 10; - - while (count) - { - /* - * Not timed out - */ - if (input_avail()) - { - unsigned char c = uart6850_read(); - count = 100; - if (uart6850_opened & OPEN_READ) - midi_input_intr(my_dev, c); - } - else - { - while (!input_avail() && count) - count--; - } - } -} - -static irqreturn_t m6850intr(int irq, void *dev_id) -{ - if (input_avail()) - uart6850_input_loop(); - return IRQ_HANDLED; -} - -/* - * It looks like there is no input interrupts in the UART mode. Let's try - * polling. - */ - -static void poll_uart6850(unsigned long dummy) -{ - unsigned long flags; - - if (!(uart6850_opened & OPEN_READ)) - return; /* Device has been closed */ - - spin_lock_irqsave(&lock,flags); - if (input_avail()) - uart6850_input_loop(); - - uart6850_timer.expires = 1 + jiffies; - add_timer(&uart6850_timer); - - /* - * Come back later - */ - - spin_unlock_irqrestore(&lock,flags); -} - -static int uart6850_open(int dev, int mode, - void (*input) (int dev, unsigned char data), - void (*output) (int dev) -) -{ - if (uart6850_opened) - { -/* printk("Midi6850: Midi busy\n");*/ - return -EBUSY; - } - - uart6850_cmd(UART_RESET); - uart6850_input_loop(); - midi_input_intr = input; - uart6850_opened = mode; - poll_uart6850(0); /* - * Enable input polling - */ - - return 0; -} - -static void uart6850_close(int dev) -{ - uart6850_cmd(UART_MODE_ON); - del_timer(&uart6850_timer); - uart6850_opened = 0; -} - -static int uart6850_out(int dev, unsigned char midi_byte) -{ - int timeout; - unsigned long flags; - - /* - * Test for input since pending input seems to block the output. - */ - - spin_lock_irqsave(&lock,flags); - - if (input_avail()) - uart6850_input_loop(); - - spin_unlock_irqrestore(&lock,flags); - - /* - * Sometimes it takes about 13000 loops before the output becomes ready - * (After reset). Normally it takes just about 10 loops. - */ - - for (timeout = 30000; timeout > 0 && !output_ready(); timeout--); /* - * Wait - */ - if (!output_ready()) - { - printk(KERN_WARNING "Midi6850: Timeout\n"); - return 0; - } - uart6850_write(midi_byte); - return 1; -} - -static inline int uart6850_command(int dev, unsigned char *midi_byte) -{ - return 1; -} - -static inline int uart6850_start_read(int dev) -{ - return 0; -} - -static inline int uart6850_end_read(int dev) -{ - return 0; -} - -static inline void uart6850_kick(int dev) -{ -} - -static inline int uart6850_buffer_status(int dev) -{ - return 0; /* - * No data in buffers - */ -} - -#define MIDI_SYNTH_NAME "6850 UART Midi" -#define MIDI_SYNTH_CAPS SYNTH_CAP_INPUT -#include "midi_synth.h" - -static struct midi_operations uart6850_operations = -{ - .owner = THIS_MODULE, - .info = {"6850 UART", 0, 0, SNDCARD_UART6850}, - .converter = &std_midi_synth, - .in_info = {0}, - .open = uart6850_open, - .close = uart6850_close, - .outputc = uart6850_out, - .start_read = uart6850_start_read, - .end_read = uart6850_end_read, - .kick = uart6850_kick, - .command = uart6850_command, - .buffer_status = uart6850_buffer_status -}; - - -static void __init attach_uart6850(struct address_info *hw_config) -{ - int ok, timeout; - unsigned long flags; - - if (!uart6850_detected) - return; - - if ((my_dev = sound_alloc_mididev()) == -1) - { - printk(KERN_INFO "uart6850: Too many midi devices detected\n"); - return; - } - uart6850_base = hw_config->io_base; - uart6850_osp = hw_config->osp; - uart6850_irq = hw_config->irq; - - spin_lock_irqsave(&lock,flags); - - for (timeout = 30000; timeout > 0 && !output_ready(); timeout--); /* - * Wait - */ - uart6850_cmd(UART_MODE_ON); - ok = 1; - spin_unlock_irqrestore(&lock,flags); - - conf_printf("6850 Midi Interface", hw_config); - - std_midi_synth.midi_dev = my_dev; - hw_config->slots[4] = my_dev; - midi_devs[my_dev] = &uart6850_operations; - sequencer_init(); -} - -static inline int reset_uart6850(void) -{ - uart6850_read(); - return 1; /* - * OK - */ -} - -static int __init probe_uart6850(struct address_info *hw_config) -{ - int ok; - - uart6850_osp = hw_config->osp; - uart6850_base = hw_config->io_base; - uart6850_irq = hw_config->irq; - - if (request_irq(uart6850_irq, m6850intr, 0, "MIDI6850", NULL) < 0) - return 0; - - ok = reset_uart6850(); - uart6850_detected = ok; - return ok; -} - -static void __exit unload_uart6850(struct address_info *hw_config) -{ - free_irq(hw_config->irq, NULL); - sound_unload_mididev(hw_config->slots[4]); -} - -static struct address_info cfg_mpu; - -static int __initdata io = -1; -static int __initdata irq = -1; - -module_param_hw(io, int, ioport, 0); -module_param_hw(irq, int, irq, 0); - -static int __init init_uart6850(void) -{ - cfg_mpu.io_base = io; - cfg_mpu.irq = irq; - - if (cfg_mpu.io_base == -1 || cfg_mpu.irq == -1) { - printk(KERN_INFO "uart6850: irq and io must be set.\n"); - return -EINVAL; - } - - if (probe_uart6850(&cfg_mpu)) - return -ENODEV; - attach_uart6850(&cfg_mpu); - - return 0; -} - -static void __exit cleanup_uart6850(void) -{ - unload_uart6850(&cfg_mpu); -} - -module_init(init_uart6850); -module_exit(cleanup_uart6850); - -#ifndef MODULE -static int __init setup_uart6850(char *str) -{ - /* io, irq */ - int ints[3]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - io = ints[1]; - irq = ints[2]; - - return 1; -} -__setup("uart6850=", setup_uart6850); -#endif -MODULE_LICENSE("GPL"); diff --git a/sound/oss/ulaw.h b/sound/oss/ulaw.h deleted file mode 100644 index 0ff8c0a3bda0..000000000000 --- a/sound/oss/ulaw.h +++ /dev/null @@ -1,69 +0,0 @@ -static unsigned char ulaw_dsp[] = { - 3, 7, 11, 15, 19, 23, 27, 31, - 35, 39, 43, 47, 51, 55, 59, 63, - 66, 68, 70, 72, 74, 76, 78, 80, - 82, 84, 86, 88, 90, 92, 94, 96, - 98, 99, 100, 101, 102, 103, 104, 105, - 106, 107, 108, 109, 110, 111, 112, 113, - 113, 114, 114, 115, 115, 116, 116, 117, - 117, 118, 118, 119, 119, 120, 120, 121, - 121, 121, 122, 122, 122, 122, 123, 123, - 123, 123, 124, 124, 124, 124, 125, 125, - 125, 125, 125, 125, 126, 126, 126, 126, - 126, 126, 126, 126, 127, 127, 127, 127, - 127, 127, 127, 127, 127, 127, 127, 127, - 128, 128, 128, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, - 253, 249, 245, 241, 237, 233, 229, 225, - 221, 217, 213, 209, 205, 201, 197, 193, - 190, 188, 186, 184, 182, 180, 178, 176, - 174, 172, 170, 168, 166, 164, 162, 160, - 158, 157, 156, 155, 154, 153, 152, 151, - 150, 149, 148, 147, 146, 145, 144, 143, - 143, 142, 142, 141, 141, 140, 140, 139, - 139, 138, 138, 137, 137, 136, 136, 135, - 135, 135, 134, 134, 134, 134, 133, 133, - 133, 133, 132, 132, 132, 132, 131, 131, - 131, 131, 131, 131, 130, 130, 130, 130, - 130, 130, 130, 130, 129, 129, 129, 129, - 129, 129, 129, 129, 129, 129, 129, 129, - 128, 128, 128, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, - 128, 128, 128, 128, 128, 128, 128, 128, -}; - -static unsigned char dsp_ulaw[] = { - 0, 0, 0, 0, 0, 1, 1, 1, - 1, 2, 2, 2, 2, 3, 3, 3, - 3, 4, 4, 4, 4, 5, 5, 5, - 5, 6, 6, 6, 6, 7, 7, 7, - 7, 8, 8, 8, 8, 9, 9, 9, - 9, 10, 10, 10, 10, 11, 11, 11, - 11, 12, 12, 12, 12, 13, 13, 13, - 13, 14, 14, 14, 14, 15, 15, 15, - 15, 16, 16, 17, 17, 18, 18, 19, - 19, 20, 20, 21, 21, 22, 22, 23, - 23, 24, 24, 25, 25, 26, 26, 27, - 27, 28, 28, 29, 29, 30, 30, 31, - 31, 32, 33, 34, 35, 36, 37, 38, - 39, 40, 41, 42, 43, 44, 45, 46, - 47, 49, 51, 53, 55, 57, 59, 61, - 63, 66, 70, 74, 78, 84, 92, 104, - 254, 231, 219, 211, 205, 201, 197, 193, - 190, 188, 186, 184, 182, 180, 178, 176, - 175, 174, 173, 172, 171, 170, 169, 168, - 167, 166, 165, 164, 163, 162, 161, 160, - 159, 159, 158, 158, 157, 157, 156, 156, - 155, 155, 154, 154, 153, 153, 152, 152, - 151, 151, 150, 150, 149, 149, 148, 148, - 147, 147, 146, 146, 145, 145, 144, 144, - 143, 143, 143, 143, 142, 142, 142, 142, - 141, 141, 141, 141, 140, 140, 140, 140, - 139, 139, 139, 139, 138, 138, 138, 138, - 137, 137, 137, 137, 136, 136, 136, 136, - 135, 135, 135, 135, 134, 134, 134, 134, - 133, 133, 133, 133, 132, 132, 132, 132, - 131, 131, 131, 131, 130, 130, 130, 130, - 129, 129, 129, 129, 128, 128, 128, 128, -}; diff --git a/sound/oss/v_midi.c b/sound/oss/v_midi.c deleted file mode 100644 index fc0ba276cc8f..000000000000 --- a/sound/oss/v_midi.c +++ /dev/null @@ -1,290 +0,0 @@ -/* - * sound/oss/v_midi.c - * - * The low level driver for the Sound Blaster DS chips. - * - * - * Copyright (C) by Hannu Savolainen 1993-1996 - * - * USS/Lite for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * ?? - * - * Changes - * Alan Cox Modularisation, changed memory allocations - * Christoph Hellwig Adapted to module_init/module_exit - * - * Status - * Untested - */ - -#include -#include -#include -#include -#include "sound_config.h" - -#include "v_midi.h" - -static vmidi_devc *v_devc[2] = { NULL, NULL}; -static int midi1,midi2; -static void *midi_mem = NULL; - -/* - * The DSP channel can be used either for input or output. Variable - * 'sb_irq_mode' will be set when the program calls read or write first time - * after open. Current version doesn't support mode changes without closing - * and reopening the device. Support for this feature may be implemented in a - * future version of this driver. - */ - - -static int v_midi_open (int dev, int mode, - void (*input) (int dev, unsigned char data), - void (*output) (int dev) -) -{ - vmidi_devc *devc = midi_devs[dev]->devc; - unsigned long flags; - - if (devc == NULL) - return -ENXIO; - - spin_lock_irqsave(&devc->lock,flags); - if (devc->opened) - { - spin_unlock_irqrestore(&devc->lock,flags); - return -EBUSY; - } - devc->opened = 1; - spin_unlock_irqrestore(&devc->lock,flags); - - devc->intr_active = 1; - - if (mode & OPEN_READ) - { - devc->input_opened = 1; - devc->midi_input_intr = input; - } - - return 0; -} - -static void v_midi_close (int dev) -{ - vmidi_devc *devc = midi_devs[dev]->devc; - unsigned long flags; - - if (devc == NULL) - return; - - spin_lock_irqsave(&devc->lock,flags); - devc->intr_active = 0; - devc->input_opened = 0; - devc->opened = 0; - spin_unlock_irqrestore(&devc->lock,flags); -} - -static int v_midi_out (int dev, unsigned char midi_byte) -{ - vmidi_devc *devc = midi_devs[dev]->devc; - vmidi_devc *pdevc; - - if (devc == NULL) - return -ENXIO; - - pdevc = midi_devs[devc->pair_mididev]->devc; - if (pdevc->input_opened > 0){ - if (MIDIbuf_avail(pdevc->my_mididev) > 500) - return 0; - pdevc->midi_input_intr (pdevc->my_mididev, midi_byte); - } - return 1; -} - -static inline int v_midi_start_read (int dev) -{ - return 0; -} - -static int v_midi_end_read (int dev) -{ - vmidi_devc *devc = midi_devs[dev]->devc; - if (devc == NULL) - return -ENXIO; - - devc->intr_active = 0; - return 0; -} - -/* why -EPERM and not -EINVAL?? */ - -static inline int v_midi_ioctl (int dev, unsigned cmd, void __user *arg) -{ - return -EPERM; -} - - -#define MIDI_SYNTH_NAME "Loopback MIDI" -#define MIDI_SYNTH_CAPS SYNTH_CAP_INPUT - -#include "midi_synth.h" - -static struct midi_operations v_midi_operations = -{ - .owner = THIS_MODULE, - .info = {"Loopback MIDI Port 1", 0, 0, SNDCARD_VMIDI}, - .converter = &std_midi_synth, - .in_info = {0}, - .open = v_midi_open, - .close = v_midi_close, - .ioctl = v_midi_ioctl, - .outputc = v_midi_out, - .start_read = v_midi_start_read, - .end_read = v_midi_end_read, -}; - -static struct midi_operations v_midi_operations2 = -{ - .owner = THIS_MODULE, - .info = {"Loopback MIDI Port 2", 0, 0, SNDCARD_VMIDI}, - .converter = &std_midi_synth, - .in_info = {0}, - .open = v_midi_open, - .close = v_midi_close, - .ioctl = v_midi_ioctl, - .outputc = v_midi_out, - .start_read = v_midi_start_read, - .end_read = v_midi_end_read, -}; - -/* - * We kmalloc just one of these - it makes life simpler and the code - * cleaner and the memory handling far more efficient - */ - -struct vmidi_memory -{ - /* Must be first */ - struct midi_operations m_ops[2]; - struct synth_operations s_ops[2]; - struct vmidi_devc v_ops[2]; -}; - -static void __init attach_v_midi (struct address_info *hw_config) -{ - struct vmidi_memory *m; - /* printk("Attaching v_midi device.....\n"); */ - - midi1 = sound_alloc_mididev(); - if (midi1 == -1) - { - printk(KERN_ERR "v_midi: Too many midi devices detected\n"); - return; - } - - m = kmalloc(sizeof(struct vmidi_memory), GFP_KERNEL); - if (m == NULL) - { - printk(KERN_WARNING "Loopback MIDI: Failed to allocate memory\n"); - sound_unload_mididev(midi1); - return; - } - - midi_mem = m; - - midi_devs[midi1] = &m->m_ops[0]; - - - midi2 = sound_alloc_mididev(); - if (midi2 == -1) - { - printk (KERN_ERR "v_midi: Too many midi devices detected\n"); - kfree(m); - sound_unload_mididev(midi1); - return; - } - - midi_devs[midi2] = &m->m_ops[1]; - - /* printk("VMIDI1: %d VMIDI2: %d\n",midi1,midi2); */ - - /* for MIDI-1 */ - v_devc[0] = &m->v_ops[0]; - memcpy ((char *) midi_devs[midi1], (char *) &v_midi_operations, - sizeof (struct midi_operations)); - - v_devc[0]->my_mididev = midi1; - v_devc[0]->pair_mididev = midi2; - v_devc[0]->opened = v_devc[0]->input_opened = 0; - v_devc[0]->intr_active = 0; - v_devc[0]->midi_input_intr = NULL; - spin_lock_init(&v_devc[0]->lock); - - midi_devs[midi1]->devc = v_devc[0]; - - midi_devs[midi1]->converter = &m->s_ops[0]; - std_midi_synth.midi_dev = midi1; - memcpy ((char *) midi_devs[midi1]->converter, (char *) &std_midi_synth, - sizeof (struct synth_operations)); - midi_devs[midi1]->converter->id = "V_MIDI 1"; - - /* for MIDI-2 */ - v_devc[1] = &m->v_ops[1]; - - memcpy ((char *) midi_devs[midi2], (char *) &v_midi_operations2, - sizeof (struct midi_operations)); - - v_devc[1]->my_mididev = midi2; - v_devc[1]->pair_mididev = midi1; - v_devc[1]->opened = v_devc[1]->input_opened = 0; - v_devc[1]->intr_active = 0; - v_devc[1]->midi_input_intr = NULL; - spin_lock_init(&v_devc[1]->lock); - - midi_devs[midi2]->devc = v_devc[1]; - midi_devs[midi2]->converter = &m->s_ops[1]; - - std_midi_synth.midi_dev = midi2; - memcpy ((char *) midi_devs[midi2]->converter, (char *) &std_midi_synth, - sizeof (struct synth_operations)); - midi_devs[midi2]->converter->id = "V_MIDI 2"; - - sequencer_init(); - /* printk("Attached v_midi device\n"); */ -} - -static inline int __init probe_v_midi(struct address_info *hw_config) -{ - return(1); /* always OK */ -} - - -static void __exit unload_v_midi(struct address_info *hw_config) -{ - sound_unload_mididev(midi1); - sound_unload_mididev(midi2); - kfree(midi_mem); -} - -static struct address_info cfg; /* dummy */ - -static int __init init_vmidi(void) -{ - printk("MIDI Loopback device driver\n"); - if (!probe_v_midi(&cfg)) - return -ENODEV; - attach_v_midi(&cfg); - - return 0; -} - -static void __exit cleanup_vmidi(void) -{ - unload_v_midi(&cfg); -} - -module_init(init_vmidi); -module_exit(cleanup_vmidi); -MODULE_LICENSE("GPL"); diff --git a/sound/oss/v_midi.h b/sound/oss/v_midi.h deleted file mode 100644 index 08e2185ee816..000000000000 --- a/sound/oss/v_midi.h +++ /dev/null @@ -1,14 +0,0 @@ -typedef struct vmidi_devc { - int dev; - - /* State variables */ - int opened; - spinlock_t lock; - - /* MIDI fields */ - int my_mididev; - int pair_mididev; - int input_opened; - int intr_active; - void (*midi_input_intr) (int dev, unsigned char data); - } vmidi_devc; diff --git a/sound/oss/vidc.c b/sound/oss/vidc.c deleted file mode 100644 index 92ca5bee1860..000000000000 --- a/sound/oss/vidc.c +++ /dev/null @@ -1,557 +0,0 @@ -/* - * linux/drivers/sound/vidc.c - * - * Copyright (C) 1997-2000 by Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * VIDC20 audio driver. - * - * The VIDC20 sound hardware consists of the VIDC20 itself, a DAC and a DMA - * engine. The DMA transfers fixed-format (16-bit little-endian linear) - * samples to the VIDC20, which then transfers this data serially to the - * DACs. The samplerate is controlled by the VIDC. - * - * We currently support a mixer device, but it is currently non-functional. - */ - -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include "sound_config.h" -#include "vidc.h" - -#ifndef _SIOC_TYPE -#define _SIOC_TYPE(x) _IOC_TYPE(x) -#endif -#ifndef _SIOC_NR -#define _SIOC_NR(x) _IOC_NR(x) -#endif - -#define VIDC_SOUND_CLOCK (250000) -#define VIDC_SOUND_CLOCK_EXT (176400) - -/* - * When using SERIAL SOUND mode (external DAC), the number of physical - * channels is fixed at 2. - */ -static int vidc_busy; -static int vidc_adev; -static int vidc_audio_rate; -static char vidc_audio_format; -static char vidc_audio_channels; - -static unsigned char vidc_level_l[SOUND_MIXER_NRDEVICES] = { - 85, /* master */ - 50, /* bass */ - 50, /* treble */ - 0, /* synth */ - 75, /* pcm */ - 0, /* speaker */ - 100, /* ext line */ - 0, /* mic */ - 100, /* CD */ - 0, -}; - -static unsigned char vidc_level_r[SOUND_MIXER_NRDEVICES] = { - 85, /* master */ - 50, /* bass */ - 50, /* treble */ - 0, /* synth */ - 75, /* pcm */ - 0, /* speaker */ - 100, /* ext line */ - 0, /* mic */ - 100, /* CD */ - 0, -}; - -static unsigned int vidc_audio_volume_l; /* left PCM vol, 0 - 65536 */ -static unsigned int vidc_audio_volume_r; /* right PCM vol, 0 - 65536 */ - -extern void vidc_update_filler(int bits, int channels); -extern int softoss_dev; - -static void -vidc_mixer_set(int mdev, unsigned int level) -{ - unsigned int lev_l = level & 0x007f; - unsigned int lev_r = (level & 0x7f00) >> 8; - unsigned int mlev_l, mlev_r; - - if (lev_l > 100) - lev_l = 100; - if (lev_r > 100) - lev_r = 100; - -#define SCALE(lev,master) ((lev) * (master) * 65536 / 10000) - - mlev_l = vidc_level_l[SOUND_MIXER_VOLUME]; - mlev_r = vidc_level_r[SOUND_MIXER_VOLUME]; - - switch (mdev) { - case SOUND_MIXER_VOLUME: - case SOUND_MIXER_PCM: - vidc_level_l[mdev] = lev_l; - vidc_level_r[mdev] = lev_r; - - vidc_audio_volume_l = SCALE(lev_l, mlev_l); - vidc_audio_volume_r = SCALE(lev_r, mlev_r); -/*printk("VIDC: PCM vol %05X %05X\n", vidc_audio_volume_l, vidc_audio_volume_r);*/ - break; - } -#undef SCALE -} - -static int vidc_mixer_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - unsigned int val; - unsigned int mdev; - - if (_SIOC_TYPE(cmd) != 'M') - return -EINVAL; - - mdev = _SIOC_NR(cmd); - - if (_SIOC_DIR(cmd) & _SIOC_WRITE) { - if (get_user(val, (unsigned int __user *)arg)) - return -EFAULT; - - if (mdev < SOUND_MIXER_NRDEVICES) - vidc_mixer_set(mdev, val); - else - return -EINVAL; - } - - /* - * Return parameters - */ - switch (mdev) { - case SOUND_MIXER_RECSRC: - val = 0; - break; - - case SOUND_MIXER_DEVMASK: - val = SOUND_MASK_VOLUME | SOUND_MASK_PCM | SOUND_MASK_SYNTH; - break; - - case SOUND_MIXER_STEREODEVS: - val = SOUND_MASK_VOLUME | SOUND_MASK_PCM | SOUND_MASK_SYNTH; - break; - - case SOUND_MIXER_RECMASK: - val = 0; - break; - - case SOUND_MIXER_CAPS: - val = 0; - break; - - default: - if (mdev < SOUND_MIXER_NRDEVICES) - val = vidc_level_l[mdev] | vidc_level_r[mdev] << 8; - else - return -EINVAL; - } - - return put_user(val, (unsigned int __user *)arg) ? -EFAULT : 0; -} - -static unsigned int vidc_audio_set_format(int dev, unsigned int fmt) -{ - switch (fmt) { - default: - fmt = AFMT_S16_LE; - case AFMT_U8: - case AFMT_S8: - case AFMT_S16_LE: - vidc_audio_format = fmt; - vidc_update_filler(vidc_audio_format, vidc_audio_channels); - case AFMT_QUERY: - break; - } - return vidc_audio_format; -} - -#define my_abs(i) ((i)<0 ? -(i) : (i)) - -static int vidc_audio_set_speed(int dev, int rate) -{ - if (rate) { - unsigned int hwctrl, hwrate, hwrate_ext, rate_int, rate_ext; - unsigned int diff_int, diff_ext; - unsigned int newsize, new2size; - - hwctrl = 0x00000003; - - /* Using internal clock */ - hwrate = (((VIDC_SOUND_CLOCK * 2) / rate) + 1) >> 1; - if (hwrate < 3) - hwrate = 3; - if (hwrate > 255) - hwrate = 255; - - /* Using exernal clock */ - hwrate_ext = (((VIDC_SOUND_CLOCK_EXT * 2) / rate) + 1) >> 1; - if (hwrate_ext < 3) - hwrate_ext = 3; - if (hwrate_ext > 255) - hwrate_ext = 255; - - rate_int = VIDC_SOUND_CLOCK / hwrate; - rate_ext = VIDC_SOUND_CLOCK_EXT / hwrate_ext; - - /* Chose between external and internal clock */ - diff_int = my_abs(rate_ext-rate); - diff_ext = my_abs(rate_int-rate); - if (diff_ext < diff_int) { - /*printk("VIDC: external %d %d %d\n", rate, rate_ext, hwrate_ext);*/ - hwrate=hwrate_ext; - hwctrl=0x00000002; - /* Allow roughly 0.4% tolerance */ - if (diff_ext > (rate/256)) - rate=rate_ext; - } else { - /*printk("VIDC: internal %d %d %d\n", rate, rate_int, hwrate);*/ - hwctrl=0x00000003; - /* Allow roughly 0.4% tolerance */ - if (diff_int > (rate/256)) - rate=rate_int; - } - - vidc_writel(0xb0000000 | (hwrate - 2)); - vidc_writel(0xb1000000 | hwctrl); - - newsize = (10000 / hwrate) & ~3; - if (newsize < 208) - newsize = 208; - if (newsize > 4096) - newsize = 4096; - for (new2size = 128; new2size < newsize; new2size <<= 1); - if (new2size - newsize > newsize - (new2size >> 1)) - new2size >>= 1; - if (new2size > 4096) { - printk(KERN_ERR "VIDC: error: dma buffer (%d) %d > 4K\n", - newsize, new2size); - new2size = 4096; - } - /*printk("VIDC: dma size %d\n", new2size);*/ - dma_bufsize = new2size; - vidc_audio_rate = rate; - } - return vidc_audio_rate; -} - -static short vidc_audio_set_channels(int dev, short channels) -{ - switch (channels) { - default: - channels = 2; - case 1: - case 2: - vidc_audio_channels = channels; - vidc_update_filler(vidc_audio_format, vidc_audio_channels); - case 0: - break; - } - return vidc_audio_channels; -} - -/* - * Open the device - */ -static int vidc_audio_open(int dev, int mode) -{ - /* This audio device does not have recording capability */ - if (mode == OPEN_READ) - return -EPERM; - - if (vidc_busy) - return -EBUSY; - - vidc_busy = 1; - return 0; -} - -/* - * Close the device - */ -static void vidc_audio_close(int dev) -{ - vidc_busy = 0; -} - -/* - * Output a block via DMA to sound device. - * - * We just set the DMA start and count; the DMA interrupt routine - * will take care of formatting the samples (via the appropriate - * vidc_filler routine), and flag via vidc_audio_dma_interrupt when - * more data is required. - */ -static void -vidc_audio_output_block(int dev, unsigned long buf, int total_count, int one) -{ - struct dma_buffparms *dmap = audio_devs[dev]->dmap_out; - unsigned long flags; - - local_irq_save(flags); - dma_start = buf - (unsigned long)dmap->raw_buf_phys + (unsigned long)dmap->raw_buf; - dma_count = total_count; - local_irq_restore(flags); -} - -static void -vidc_audio_start_input(int dev, unsigned long buf, int count, int intrflag) -{ -} - -static int vidc_audio_prepare_for_input(int dev, int bsize, int bcount) -{ - return -EINVAL; -} - -static irqreturn_t vidc_audio_dma_interrupt(void) -{ - DMAbuf_outputintr(vidc_adev, 1); - return IRQ_HANDLED; -} - -/* - * Prepare for outputting samples. - * - * Each buffer that will be passed will be `bsize' bytes long, - * with a total of `bcount' buffers. - */ -static int vidc_audio_prepare_for_output(int dev, int bsize, int bcount) -{ - struct audio_operations *adev = audio_devs[dev]; - - dma_interrupt = NULL; - adev->dmap_out->flags |= DMA_NODMA; - - return 0; -} - -/* - * Stop our current operation. - */ -static void vidc_audio_reset(int dev) -{ - dma_interrupt = NULL; -} - -static int vidc_audio_local_qlen(int dev) -{ - return /*dma_count !=*/ 0; -} - -static void vidc_audio_trigger(int dev, int enable_bits) -{ - struct audio_operations *adev = audio_devs[dev]; - - if (enable_bits & PCM_ENABLE_OUTPUT) { - if (!(adev->dmap_out->flags & DMA_ACTIVE)) { - unsigned long flags; - - local_irq_save(flags); - - /* prevent recusion */ - adev->dmap_out->flags |= DMA_ACTIVE; - - dma_interrupt = vidc_audio_dma_interrupt; - vidc_sound_dma_irq(0, NULL); - iomd_writeb(DMA_CR_E | 0x10, IOMD_SD0CR); - - local_irq_restore(flags); - } - } -} - -static struct audio_driver vidc_audio_driver = -{ - .owner = THIS_MODULE, - .open = vidc_audio_open, - .close = vidc_audio_close, - .output_block = vidc_audio_output_block, - .start_input = vidc_audio_start_input, - .prepare_for_input = vidc_audio_prepare_for_input, - .prepare_for_output = vidc_audio_prepare_for_output, - .halt_io = vidc_audio_reset, - .local_qlen = vidc_audio_local_qlen, - .trigger = vidc_audio_trigger, - .set_speed = vidc_audio_set_speed, - .set_bits = vidc_audio_set_format, - .set_channels = vidc_audio_set_channels -}; - -static struct mixer_operations vidc_mixer_operations = { - .owner = THIS_MODULE, - .id = "VIDC", - .name = "VIDCsound", - .ioctl = vidc_mixer_ioctl -}; - -void vidc_update_filler(int format, int channels) -{ -#define TYPE(fmt,ch) (((fmt)<<2) | ((ch)&3)) - - switch (TYPE(format, channels)) { - default: - case TYPE(AFMT_U8, 1): - vidc_filler = vidc_fill_1x8_u; - break; - - case TYPE(AFMT_U8, 2): - vidc_filler = vidc_fill_2x8_u; - break; - - case TYPE(AFMT_S8, 1): - vidc_filler = vidc_fill_1x8_s; - break; - - case TYPE(AFMT_S8, 2): - vidc_filler = vidc_fill_2x8_s; - break; - - case TYPE(AFMT_S16_LE, 1): - vidc_filler = vidc_fill_1x16_s; - break; - - case TYPE(AFMT_S16_LE, 2): - vidc_filler = vidc_fill_2x16_s; - break; - } -} - -static void __init attach_vidc(struct address_info *hw_config) -{ - char name[32]; - int i, adev; - - sprintf(name, "VIDC %d-bit sound", hw_config->card_subtype); - conf_printf(name, hw_config); - memset(dma_buf, 0, sizeof(dma_buf)); - - adev = sound_install_audiodrv(AUDIO_DRIVER_VERSION, name, - &vidc_audio_driver, sizeof(vidc_audio_driver), - DMA_AUTOMODE, AFMT_U8 | AFMT_S8 | AFMT_S16_LE, - NULL, hw_config->dma, hw_config->dma2); - - if (adev < 0) - goto audio_failed; - - /* - * 1024 bytes => 64 buffers - */ - audio_devs[adev]->min_fragment = 10; - audio_devs[adev]->mixer_dev = num_mixers; - - audio_devs[adev]->mixer_dev = - sound_install_mixer(MIXER_DRIVER_VERSION, - name, &vidc_mixer_operations, - sizeof(vidc_mixer_operations), NULL); - - if (audio_devs[adev]->mixer_dev < 0) - goto mixer_failed; - - for (i = 0; i < 2; i++) { - dma_buf[i] = get_zeroed_page(GFP_KERNEL); - if (!dma_buf[i]) { - printk(KERN_ERR "%s: can't allocate required buffers\n", - name); - goto mem_failed; - } - dma_pbuf[i] = virt_to_phys((void *)dma_buf[i]); - } - - if (sound_alloc_dma(hw_config->dma, hw_config->name)) { - printk(KERN_ERR "%s: DMA %d is in use\n", name, hw_config->dma); - goto dma_failed; - } - - if (request_irq(hw_config->irq, vidc_sound_dma_irq, 0, - hw_config->name, &dma_start)) { - printk(KERN_ERR "%s: IRQ %d is in use\n", name, hw_config->irq); - goto irq_failed; - } - vidc_adev = adev; - vidc_mixer_set(SOUND_MIXER_VOLUME, (85 | 85 << 8)); - - return; - -irq_failed: - sound_free_dma(hw_config->dma); -dma_failed: -mem_failed: - for (i = 0; i < 2; i++) - free_page(dma_buf[i]); - sound_unload_mixerdev(audio_devs[adev]->mixer_dev); -mixer_failed: - sound_unload_audiodev(adev); -audio_failed: - return; -} - -static int __init probe_vidc(struct address_info *hw_config) -{ - hw_config->irq = IRQ_DMAS0; - hw_config->dma = DMA_VIRTUAL_SOUND; - hw_config->dma2 = -1; - hw_config->card_subtype = 16; - hw_config->name = "VIDC20"; - return 1; -} - -static void __exit unload_vidc(struct address_info *hw_config) -{ - int i, adev = vidc_adev; - - vidc_adev = -1; - - free_irq(hw_config->irq, &dma_start); - sound_free_dma(hw_config->dma); - - if (adev >= 0) { - sound_unload_mixerdev(audio_devs[adev]->mixer_dev); - sound_unload_audiodev(adev); - for (i = 0; i < 2; i++) - free_page(dma_buf[i]); - } -} - -static struct address_info cfg; - -static int __init init_vidc(void) -{ - if (probe_vidc(&cfg) == 0) - return -ENODEV; - - attach_vidc(&cfg); - - return 0; -} - -static void __exit cleanup_vidc(void) -{ - unload_vidc(&cfg); -} - -module_init(init_vidc); -module_exit(cleanup_vidc); - -MODULE_AUTHOR("Russell King"); -MODULE_DESCRIPTION("VIDC20 audio driver"); -MODULE_LICENSE("GPL"); diff --git a/sound/oss/vidc.h b/sound/oss/vidc.h deleted file mode 100644 index 0d1424751ecd..000000000000 --- a/sound/oss/vidc.h +++ /dev/null @@ -1,63 +0,0 @@ -/* - * linux/drivers/sound/vidc.h - * - * Copyright (C) 1997 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * VIDC sound function prototypes - */ - -/* vidc_fill.S */ - -/* - * Filler routines for different channels and sample sizes - */ - -extern unsigned long vidc_fill_1x8_u(unsigned long ibuf, unsigned long iend, - unsigned long obuf, int mask); -extern unsigned long vidc_fill_2x8_u(unsigned long ibuf, unsigned long iend, - unsigned long obuf, int mask); -extern unsigned long vidc_fill_1x8_s(unsigned long ibuf, unsigned long iend, - unsigned long obuf, int mask); -extern unsigned long vidc_fill_2x8_s(unsigned long ibuf, unsigned long iend, - unsigned long obuf, int mask); -extern unsigned long vidc_fill_1x16_s(unsigned long ibuf, unsigned long iend, - unsigned long obuf, int mask); -extern unsigned long vidc_fill_2x16_s(unsigned long ibuf, unsigned long iend, - unsigned long obuf, int mask); - -/* - * DMA Interrupt handler - */ - -extern irqreturn_t vidc_sound_dma_irq(int irqnr, void *ref); - -/* - * Filler routine pointer - */ - -extern unsigned long (*vidc_filler) (unsigned long ibuf, unsigned long iend, - unsigned long obuf, int mask); - -/* - * Virtual DMA buffer exhausted - */ - -extern irqreturn_t (*dma_interrupt) (void); - -/* - * Virtual DMA buffer addresses - */ - -extern unsigned long dma_start, dma_count, dma_bufsize; -extern unsigned long dma_buf[2], dma_pbuf[2]; - -/* vidc_synth.c */ - -extern void vidc_synth_init(struct address_info *hw_config); -extern void vidc_synth_exit(struct address_info *hw_config); -extern int vidc_synth_get_volume(void); -extern int vidc_synth_set_volume(int vol); diff --git a/sound/oss/vidc_fill.S b/sound/oss/vidc_fill.S deleted file mode 100644 index bed34921d176..000000000000 --- a/sound/oss/vidc_fill.S +++ /dev/null @@ -1,218 +0,0 @@ -/* - * linux/drivers/sound/vidc_fill.S - * - * Copyright (C) 1997 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Filler routines for DMA buffers - */ -#include -#include -#include -#include - - .text - -ENTRY(vidc_fill_1x8_u) - mov ip, #0xff00 -1: cmp r0, r1 - bge vidc_clear - ldrb r4, [r0], #1 - eor r4, r4, #0x80 - and r4, ip, r4, lsl #8 - orr r4, r4, r4, lsl #16 - str r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_2x8_u) - mov ip, #0xff00 -1: cmp r0, r1 - bge vidc_clear - ldr r4, [r0], #2 - and r5, r4, ip - and r4, ip, r4, lsl #8 - orr r4, r4, r5, lsl #16 - orr r4, r4, r4, lsr #8 - str r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_1x8_s) - mov ip, #0xff00 -1: cmp r0, r1 - bge vidc_clear - ldrb r4, [r0], #1 - and r4, ip, r4, lsl #8 - orr r4, r4, r4, lsl #16 - str r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_2x8_s) - mov ip, #0xff00 -1: cmp r0, r1 - bge vidc_clear - ldr r4, [r0], #2 - and r5, r4, ip - and r4, ip, r4, lsl #8 - orr r4, r4, r5, lsl #16 - orr r4, r4, r4, lsr #8 - str r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_1x16_s) - mov ip, #0xff00 - orr ip, ip, ip, lsr #8 -1: cmp r0, r1 - bge vidc_clear - ldr r5, [r0], #2 - and r4, r5, ip - orr r4, r4, r4, lsl #16 - str r4, [r2], #4 - cmp r0, r1 - addlt r0, r0, #2 - andlt r4, r5, ip, lsl #16 - orrlt r4, r4, r4, lsr #16 - strlt r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_2x16_s) - mov ip, #0xff00 - orr ip, ip, ip, lsr #8 -1: cmp r0, r1 - bge vidc_clear - ldr r4, [r0], #4 - str r4, [r2], #4 - cmp r0, r1 - ldrlt r4, [r0], #4 - strlt r4, [r2], #4 - cmp r2, r3 - blt 1b - mov pc, lr - -ENTRY(vidc_fill_noaudio) - mov r0, #0 - mov r1, #0 -2: mov r4, #0 - mov r5, #0 -1: cmp r2, r3 - stmltia r2!, {r0, r1, r4, r5} - blt 1b - mov pc, lr - -ENTRY(vidc_clear) - mov r0, #0 - mov r1, #0 - tst r2, #4 - str r0, [r2], #4 - tst r2, #8 - stmia r2!, {r0, r1} - b 2b - -/* - * Call filler routines with: - * r0 = phys address - * r1 = phys end - * r2 = buffer - * Returns: - * r0 = new buffer address - * r2 = new buffer finish - * r4 = corrupted - * r5 = corrupted - * ip = corrupted - */ - -ENTRY(vidc_sound_dma_irq) - stmfd sp!, {r4 - r8, lr} - ldr r8, =dma_start - ldmia r8, {r0, r1, r2, r3, r4, r5} - teq r1, #0 - adreq r4, vidc_fill_noaudio - moveq r7, #1 << 31 - movne r7, #0 - mov ip, #IOMD_BASE & 0xff000000 - orr ip, ip, #IOMD_BASE & 0x00ff0000 - ldrb r6, [ip, #IOMD_SD0ST] - tst r6, #DMA_ST_OFL @ Check for overrun - eorne r6, r6, #DMA_ST_AB - tst r6, #DMA_ST_AB - moveq r2, r3 @ DMAing A, update B - add r3, r2, r5 @ End of DMA buffer - add r1, r1, r0 @ End of virtual DMA buffer - mov lr, pc - mov pc, r4 @ Call fill routine (uses r4, ip) - sub r1, r1, r0 @ Remaining length - stmia r8, {r0, r1} - mov r0, #0 - tst r2, #4 @ Round buffer up to 4 words - strne r0, [r2], #4 - tst r2, #8 - strne r0, [r2], #4 - strne r0, [r2], #4 - sub r2, r2, #16 - mov r2, r2, lsl #20 - movs r2, r2, lsr #20 - orreq r2, r2, #1 << 30 @ Set L bit - orr r2, r2, r7 - ldmdb r8, {r3, r4, r5} - tst r6, #DMA_ST_AB - mov ip, #IOMD_BASE & 0xff000000 - orr ip, ip, #IOMD_BASE & 0x00ff0000 - streq r4, [ip, #IOMD_SD0CURB] - strne r5, [ip, #IOMD_SD0CURA] - streq r2, [ip, #IOMD_SD0ENDB] - strne r2, [ip, #IOMD_SD0ENDA] - ldr lr, [ip, #IOMD_SD0ST] - tst lr, #DMA_ST_OFL - bne 1f - tst r6, #DMA_ST_AB - strne r4, [ip, #IOMD_SD0CURB] - streq r5, [ip, #IOMD_SD0CURA] - strne r2, [ip, #IOMD_SD0ENDB] - streq r2, [ip, #IOMD_SD0ENDA] -1: teq r7, #0 - mov r0, #0x10 - strneb r0, [ip, #IOMD_SD0CR] - ldmfd sp!, {r4 - r8, lr} - mov r0, #1 @ IRQ_HANDLED - teq r1, #0 @ If we have no more - movne pc, lr - teq r3, #0 - movne pc, r3 @ Call interrupt routine - mov pc, lr - - .data - .globl dma_interrupt -dma_interrupt: - .long 0 @ r3 - .globl dma_pbuf -dma_pbuf: - .long 0 @ r4 - .long 0 @ r5 - .globl dma_start -dma_start: - .long 0 @ r0 - .globl dma_count -dma_count: - .long 0 @ r1 - .globl dma_buf -dma_buf: - .long 0 @ r2 - .long 0 @ r3 - .globl vidc_filler -vidc_filler: - .long vidc_fill_noaudio @ r4 - .globl dma_bufsize -dma_bufsize: - .long 0x1000 @ r5 diff --git a/sound/oss/waveartist.c b/sound/oss/waveartist.c deleted file mode 100644 index 4f0c3a232e41..000000000000 --- a/sound/oss/waveartist.c +++ /dev/null @@ -1,2043 +0,0 @@ -/* - * linux/sound/oss/waveartist.c - * - * The low level driver for the RWA010 Rockwell Wave Artist - * codec chip used in the Rebel.com NetWinder. - * - * Cleaned up and integrated into 2.1 by Russell King (rmk@arm.linux.org.uk) - * and Pat Beirne (patb@corel.ca) - * - * - * Copyright (C) by Rebel.com 1998-1999 - * - * RWA010 specs received under NDA from Rockwell - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * Changes: - * 11-10-2000 Bartlomiej Zolnierkiewicz - * Added __init to waveartist_init() - */ - -/* Debugging */ -#define DEBUG_CMD 1 -#define DEBUG_OUT 2 -#define DEBUG_IN 4 -#define DEBUG_INTR 8 -#define DEBUG_MIXER 16 -#define DEBUG_TRIGGER 32 - -#define debug_flg (0) - -#include -#include -#include -#include -#include -#include -#include -#include - - -#include "sound_config.h" -#include "waveartist.h" - -#ifdef CONFIG_ARM -#include -#include -#endif - -#ifndef NO_DMA -#define NO_DMA 255 -#endif - -#define SUPPORTED_MIXER_DEVICES (SOUND_MASK_SYNTH |\ - SOUND_MASK_PCM |\ - SOUND_MASK_LINE |\ - SOUND_MASK_MIC |\ - SOUND_MASK_LINE1 |\ - SOUND_MASK_RECLEV |\ - SOUND_MASK_VOLUME |\ - SOUND_MASK_IMIX) - -static unsigned short levels[SOUND_MIXER_NRDEVICES] = { - 0x5555, /* Master Volume */ - 0x0000, /* Bass */ - 0x0000, /* Treble */ - 0x2323, /* Synth (FM) */ - 0x4b4b, /* PCM */ - 0x6464, /* PC Speaker */ - 0x0000, /* Ext Line */ - 0x0000, /* Mic */ - 0x0000, /* CD */ - 0x6464, /* Recording monitor */ - 0x0000, /* SB PCM (ALT PCM) */ - 0x0000, /* Recording level */ - 0x6464, /* Input gain */ - 0x6464, /* Output gain */ - 0x0000, /* Line1 (Aux1) */ - 0x0000, /* Line2 (Aux2) */ - 0x0000, /* Line3 (Aux3) */ - 0x0000, /* Digital1 */ - 0x0000, /* Digital2 */ - 0x0000, /* Digital3 */ - 0x0000, /* Phone In */ - 0x6464, /* Phone Out */ - 0x0000, /* Video */ - 0x0000, /* Radio */ - 0x0000 /* Monitor */ -}; - -struct wavnc_info { - struct address_info hw; /* hardware */ - char *chip_name; - - int xfer_count; - int audio_mode; - int open_mode; - int audio_flags; - int record_dev; - int playback_dev; - int dev_no; - - /* Mixer parameters */ - const struct waveartist_mixer_info *mix; - - unsigned short *levels; /* cache of volume settings */ - int recmask; /* currently enabled recording device! */ - -#ifdef CONFIG_ARCH_NETWINDER - signed int slider_vol; /* hardware slider volume */ - unsigned int handset_detect :1; - unsigned int telephone_detect:1; - unsigned int no_autoselect :1;/* handset/telephone autoselects a path */ - unsigned int spkr_mute_state :1;/* set by ioctl or autoselect */ - unsigned int line_mute_state :1;/* set by ioctl or autoselect */ - unsigned int use_slider :1;/* use slider setting for o/p vol */ -#endif -}; - -/* - * This is the implementation specific mixer information. - */ -struct waveartist_mixer_info { - unsigned int supported_devs; /* Supported devices */ - unsigned int recording_devs; /* Recordable devies */ - unsigned int stereo_devs; /* Stereo devices */ - - unsigned int (*select_input)(struct wavnc_info *, unsigned int, - unsigned char *, unsigned char *); - int (*decode_mixer)(struct wavnc_info *, int, - unsigned char, unsigned char); - int (*get_mixer)(struct wavnc_info *, int); -}; - -struct wavnc_port_info { - int open_mode; - int speed; - int channels; - int audio_format; -}; - -static int nr_waveartist_devs; -static struct wavnc_info adev_info[MAX_AUDIO_DEV]; -static DEFINE_SPINLOCK(waveartist_lock); - -#ifndef CONFIG_ARCH_NETWINDER -#define machine_is_netwinder() 0 -#else -static struct timer_list vnc_timer; -static void vnc_configure_mixer(struct wavnc_info *devc, - unsigned int input_mask); -static int vnc_private_ioctl(int dev, unsigned int cmd, int __user *arg); -static void vnc_slider_tick(unsigned long data); -#endif - -static inline void -waveartist_set_ctlr(struct address_info *hw, unsigned char clear, unsigned char set) -{ - unsigned int ctlr_port = hw->io_base + CTLR; - - clear = ~clear & inb(ctlr_port); - - outb(clear | set, ctlr_port); -} - -/* Toggle IRQ acknowledge line - */ -static inline void -waveartist_iack(struct wavnc_info *devc) -{ - unsigned int ctlr_port = devc->hw.io_base + CTLR; - int old_ctlr; - - old_ctlr = inb(ctlr_port) & ~IRQ_ACK; - - outb(old_ctlr | IRQ_ACK, ctlr_port); - outb(old_ctlr, ctlr_port); -} - -static inline int -waveartist_sleep(int timeout_ms) -{ - unsigned int timeout = msecs_to_jiffies(timeout_ms*100); - return schedule_timeout_interruptible(timeout); -} - -static int -waveartist_reset(struct wavnc_info *devc) -{ - struct address_info *hw = &devc->hw; - unsigned int timeout, res = -1; - - waveartist_set_ctlr(hw, -1, RESET); - waveartist_sleep(2); - waveartist_set_ctlr(hw, RESET, 0); - - timeout = 500; - do { - mdelay(2); - - if (inb(hw->io_base + STATR) & CMD_RF) { - res = inw(hw->io_base + CMDR); - if (res == 0x55aa) - break; - } - } while (--timeout); - - if (timeout == 0) { - printk(KERN_WARNING "WaveArtist: reset timeout "); - if (res != (unsigned int)-1) - printk("(res=%04X)", res); - printk("\n"); - return 1; - } - return 0; -} - -/* Helper function to send and receive words - * from WaveArtist. It handles all the handshaking - * and can send or receive multiple words. - */ -static int -waveartist_cmd(struct wavnc_info *devc, - int nr_cmd, unsigned int *cmd, - int nr_resp, unsigned int *resp) -{ - unsigned int io_base = devc->hw.io_base; - unsigned int timed_out = 0; - unsigned int i; - - if (debug_flg & DEBUG_CMD) { - printk("waveartist_cmd: cmd="); - - for (i = 0; i < nr_cmd; i++) - printk("%04X ", cmd[i]); - - printk("\n"); - } - - if (inb(io_base + STATR) & CMD_RF) { - int old_data; - - /* flush the port - */ - - old_data = inw(io_base + CMDR); - - if (debug_flg & DEBUG_CMD) - printk("flushed %04X...", old_data); - - udelay(10); - } - - for (i = 0; !timed_out && i < nr_cmd; i++) { - int count; - - for (count = 5000; count; count--) - if (inb(io_base + STATR) & CMD_WE) - break; - - if (!count) - timed_out = 1; - else - outw(cmd[i], io_base + CMDR); - } - - for (i = 0; !timed_out && i < nr_resp; i++) { - int count; - - for (count = 5000; count; count--) - if (inb(io_base + STATR) & CMD_RF) - break; - - if (!count) - timed_out = 1; - else - resp[i] = inw(io_base + CMDR); - } - - if (debug_flg & DEBUG_CMD) { - if (!timed_out) { - printk("waveartist_cmd: resp="); - - for (i = 0; i < nr_resp; i++) - printk("%04X ", resp[i]); - - printk("\n"); - } else - printk("waveartist_cmd: timed out\n"); - } - - return timed_out ? 1 : 0; -} - -/* - * Send one command word - */ -static inline int -waveartist_cmd1(struct wavnc_info *devc, unsigned int cmd) -{ - return waveartist_cmd(devc, 1, &cmd, 0, NULL); -} - -/* - * Send one command, receive one word - */ -static inline unsigned int -waveartist_cmd1_r(struct wavnc_info *devc, unsigned int cmd) -{ - unsigned int ret; - - waveartist_cmd(devc, 1, &cmd, 1, &ret); - - return ret; -} - -/* - * Send a double command, receive one - * word (and throw it away) - */ -static inline int -waveartist_cmd2(struct wavnc_info *devc, unsigned int cmd, unsigned int arg) -{ - unsigned int vals[2]; - - vals[0] = cmd; - vals[1] = arg; - - return waveartist_cmd(devc, 2, vals, 1, vals); -} - -/* - * Send a triple command - */ -static inline int -waveartist_cmd3(struct wavnc_info *devc, unsigned int cmd, - unsigned int arg1, unsigned int arg2) -{ - unsigned int vals[3]; - - vals[0] = cmd; - vals[1] = arg1; - vals[2] = arg2; - - return waveartist_cmd(devc, 3, vals, 0, NULL); -} - -static int -waveartist_getrev(struct wavnc_info *devc, char *rev) -{ - unsigned int temp[2]; - unsigned int cmd = WACMD_GETREV; - - waveartist_cmd(devc, 1, &cmd, 2, temp); - - rev[0] = temp[0] >> 8; - rev[1] = temp[0] & 255; - rev[2] = '\0'; - - return temp[0]; -} - -static void waveartist_halt_output(int dev); -static void waveartist_halt_input(int dev); -static void waveartist_halt(int dev); -static void waveartist_trigger(int dev, int state); - -static int -waveartist_open(int dev, int mode) -{ - struct wavnc_info *devc; - struct wavnc_port_info *portc; - unsigned long flags; - - if (dev < 0 || dev >= num_audiodevs) - return -ENXIO; - - devc = (struct wavnc_info *) audio_devs[dev]->devc; - portc = (struct wavnc_port_info *) audio_devs[dev]->portc; - - spin_lock_irqsave(&waveartist_lock, flags); - if (portc->open_mode || (devc->open_mode & mode)) { - spin_unlock_irqrestore(&waveartist_lock, flags); - return -EBUSY; - } - - devc->audio_mode = 0; - devc->open_mode |= mode; - portc->open_mode = mode; - waveartist_trigger(dev, 0); - - if (mode & OPEN_READ) - devc->record_dev = dev; - if (mode & OPEN_WRITE) - devc->playback_dev = dev; - spin_unlock_irqrestore(&waveartist_lock, flags); - - return 0; -} - -static void -waveartist_close(int dev) -{ - struct wavnc_info *devc = (struct wavnc_info *) - audio_devs[dev]->devc; - struct wavnc_port_info *portc = (struct wavnc_port_info *) - audio_devs[dev]->portc; - unsigned long flags; - - spin_lock_irqsave(&waveartist_lock, flags); - - waveartist_halt(dev); - - devc->audio_mode = 0; - devc->open_mode &= ~portc->open_mode; - portc->open_mode = 0; - - spin_unlock_irqrestore(&waveartist_lock, flags); -} - -static void -waveartist_output_block(int dev, unsigned long buf, int __count, int intrflag) -{ - struct wavnc_port_info *portc = (struct wavnc_port_info *) - audio_devs[dev]->portc; - struct wavnc_info *devc = (struct wavnc_info *) - audio_devs[dev]->devc; - unsigned long flags; - unsigned int count = __count; - - if (debug_flg & DEBUG_OUT) - printk("waveartist: output block, buf=0x%lx, count=0x%x...\n", - buf, count); - /* - * 16 bit data - */ - if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) - count >>= 1; - - if (portc->channels > 1) - count >>= 1; - - count -= 1; - - if (devc->audio_mode & PCM_ENABLE_OUTPUT && - audio_devs[dev]->flags & DMA_AUTOMODE && - intrflag && - count == devc->xfer_count) { - devc->audio_mode |= PCM_ENABLE_OUTPUT; - return; /* - * Auto DMA mode on. No need to react - */ - } - - spin_lock_irqsave(&waveartist_lock, flags); - - /* - * set sample count - */ - waveartist_cmd2(devc, WACMD_OUTPUTSIZE, count); - - devc->xfer_count = count; - devc->audio_mode |= PCM_ENABLE_OUTPUT; - - spin_unlock_irqrestore(&waveartist_lock, flags); -} - -static void -waveartist_start_input(int dev, unsigned long buf, int __count, int intrflag) -{ - struct wavnc_port_info *portc = (struct wavnc_port_info *) - audio_devs[dev]->portc; - struct wavnc_info *devc = (struct wavnc_info *) - audio_devs[dev]->devc; - unsigned long flags; - unsigned int count = __count; - - if (debug_flg & DEBUG_IN) - printk("waveartist: start input, buf=0x%lx, count=0x%x...\n", - buf, count); - - if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */ - count >>= 1; - - if (portc->channels > 1) - count >>= 1; - - count -= 1; - - if (devc->audio_mode & PCM_ENABLE_INPUT && - audio_devs[dev]->flags & DMA_AUTOMODE && - intrflag && - count == devc->xfer_count) { - devc->audio_mode |= PCM_ENABLE_INPUT; - return; /* - * Auto DMA mode on. No need to react - */ - } - - spin_lock_irqsave(&waveartist_lock, flags); - - /* - * set sample count - */ - waveartist_cmd2(devc, WACMD_INPUTSIZE, count); - - devc->xfer_count = count; - devc->audio_mode |= PCM_ENABLE_INPUT; - - spin_unlock_irqrestore(&waveartist_lock, flags); -} - -static int -waveartist_ioctl(int dev, unsigned int cmd, void __user * arg) -{ - return -EINVAL; -} - -static unsigned int -waveartist_get_speed(struct wavnc_port_info *portc) -{ - unsigned int speed; - - /* - * program the speed, channels, bits - */ - if (portc->speed == 8000) - speed = 0x2E71; - else if (portc->speed == 11025) - speed = 0x4000; - else if (portc->speed == 22050) - speed = 0x8000; - else if (portc->speed == 44100) - speed = 0x0; - else { - /* - * non-standard - just calculate - */ - speed = portc->speed << 16; - - speed = (speed / 44100) & 65535; - } - - return speed; -} - -static unsigned int -waveartist_get_bits(struct wavnc_port_info *portc) -{ - unsigned int bits; - - if (portc->audio_format == AFMT_S16_LE) - bits = 1; - else if (portc->audio_format == AFMT_S8) - bits = 0; - else - bits = 2; //default AFMT_U8 - - return bits; -} - -static int -waveartist_prepare_for_input(int dev, int bsize, int bcount) -{ - unsigned long flags; - struct wavnc_info *devc = (struct wavnc_info *) - audio_devs[dev]->devc; - struct wavnc_port_info *portc = (struct wavnc_port_info *) - audio_devs[dev]->portc; - unsigned int speed, bits; - - if (devc->audio_mode) - return 0; - - speed = waveartist_get_speed(portc); - bits = waveartist_get_bits(portc); - - spin_lock_irqsave(&waveartist_lock, flags); - - if (waveartist_cmd2(devc, WACMD_INPUTFORMAT, bits)) - printk(KERN_WARNING "waveartist: error setting the " - "record format to %d\n", portc->audio_format); - - if (waveartist_cmd2(devc, WACMD_INPUTCHANNELS, portc->channels)) - printk(KERN_WARNING "waveartist: error setting record " - "to %d channels\n", portc->channels); - - /* - * write cmd SetSampleSpeedTimeConstant - */ - if (waveartist_cmd2(devc, WACMD_INPUTSPEED, speed)) - printk(KERN_WARNING "waveartist: error setting the record " - "speed to %dHz.\n", portc->speed); - - if (waveartist_cmd2(devc, WACMD_INPUTDMA, 1)) - printk(KERN_WARNING "waveartist: error setting the record " - "data path to 0x%X\n", 1); - - if (waveartist_cmd2(devc, WACMD_INPUTFORMAT, bits)) - printk(KERN_WARNING "waveartist: error setting the record " - "format to %d\n", portc->audio_format); - - devc->xfer_count = 0; - spin_unlock_irqrestore(&waveartist_lock, flags); - waveartist_halt_input(dev); - - if (debug_flg & DEBUG_INTR) { - printk("WA CTLR reg: 0x%02X.\n", - inb(devc->hw.io_base + CTLR)); - printk("WA STAT reg: 0x%02X.\n", - inb(devc->hw.io_base + STATR)); - printk("WA IRQS reg: 0x%02X.\n", - inb(devc->hw.io_base + IRQSTAT)); - } - - return 0; -} - -static int -waveartist_prepare_for_output(int dev, int bsize, int bcount) -{ - unsigned long flags; - struct wavnc_info *devc = (struct wavnc_info *) - audio_devs[dev]->devc; - struct wavnc_port_info *portc = (struct wavnc_port_info *) - audio_devs[dev]->portc; - unsigned int speed, bits; - - /* - * program the speed, channels, bits - */ - speed = waveartist_get_speed(portc); - bits = waveartist_get_bits(portc); - - spin_lock_irqsave(&waveartist_lock, flags); - - if (waveartist_cmd2(devc, WACMD_OUTPUTSPEED, speed) && - waveartist_cmd2(devc, WACMD_OUTPUTSPEED, speed)) - printk(KERN_WARNING "waveartist: error setting the playback " - "speed to %dHz.\n", portc->speed); - - if (waveartist_cmd2(devc, WACMD_OUTPUTCHANNELS, portc->channels)) - printk(KERN_WARNING "waveartist: error setting the playback " - "to %d channels\n", portc->channels); - - if (waveartist_cmd2(devc, WACMD_OUTPUTDMA, 0)) - printk(KERN_WARNING "waveartist: error setting the playback " - "data path to 0x%X\n", 0); - - if (waveartist_cmd2(devc, WACMD_OUTPUTFORMAT, bits)) - printk(KERN_WARNING "waveartist: error setting the playback " - "format to %d\n", portc->audio_format); - - devc->xfer_count = 0; - spin_unlock_irqrestore(&waveartist_lock, flags); - waveartist_halt_output(dev); - - if (debug_flg & DEBUG_INTR) { - printk("WA CTLR reg: 0x%02X.\n",inb(devc->hw.io_base + CTLR)); - printk("WA STAT reg: 0x%02X.\n",inb(devc->hw.io_base + STATR)); - printk("WA IRQS reg: 0x%02X.\n",inb(devc->hw.io_base + IRQSTAT)); - } - - return 0; -} - -static void -waveartist_halt(int dev) -{ - struct wavnc_port_info *portc = (struct wavnc_port_info *) - audio_devs[dev]->portc; - struct wavnc_info *devc; - - if (portc->open_mode & OPEN_WRITE) - waveartist_halt_output(dev); - - if (portc->open_mode & OPEN_READ) - waveartist_halt_input(dev); - - devc = (struct wavnc_info *) audio_devs[dev]->devc; - devc->audio_mode = 0; -} - -static void -waveartist_halt_input(int dev) -{ - struct wavnc_info *devc = (struct wavnc_info *) - audio_devs[dev]->devc; - unsigned long flags; - - spin_lock_irqsave(&waveartist_lock, flags); - - /* - * Stop capture - */ - waveartist_cmd1(devc, WACMD_INPUTSTOP); - - devc->audio_mode &= ~PCM_ENABLE_INPUT; - - /* - * Clear interrupt by toggling - * the IRQ_ACK bit in CTRL - */ - if (inb(devc->hw.io_base + STATR) & IRQ_REQ) - waveartist_iack(devc); - -// devc->audio_mode &= ~PCM_ENABLE_INPUT; - - spin_unlock_irqrestore(&waveartist_lock, flags); -} - -static void -waveartist_halt_output(int dev) -{ - struct wavnc_info *devc = (struct wavnc_info *) - audio_devs[dev]->devc; - unsigned long flags; - - spin_lock_irqsave(&waveartist_lock, flags); - - waveartist_cmd1(devc, WACMD_OUTPUTSTOP); - - devc->audio_mode &= ~PCM_ENABLE_OUTPUT; - - /* - * Clear interrupt by toggling - * the IRQ_ACK bit in CTRL - */ - if (inb(devc->hw.io_base + STATR) & IRQ_REQ) - waveartist_iack(devc); - -// devc->audio_mode &= ~PCM_ENABLE_OUTPUT; - - spin_unlock_irqrestore(&waveartist_lock, flags); -} - -static void -waveartist_trigger(int dev, int state) -{ - struct wavnc_info *devc = (struct wavnc_info *) - audio_devs[dev]->devc; - struct wavnc_port_info *portc = (struct wavnc_port_info *) - audio_devs[dev]->portc; - unsigned long flags; - - if (debug_flg & DEBUG_TRIGGER) { - printk("wavnc: audio trigger "); - if (state & PCM_ENABLE_INPUT) - printk("in "); - if (state & PCM_ENABLE_OUTPUT) - printk("out"); - printk("\n"); - } - - spin_lock_irqsave(&waveartist_lock, flags); - - state &= devc->audio_mode; - - if (portc->open_mode & OPEN_READ && - state & PCM_ENABLE_INPUT) - /* - * enable ADC Data Transfer to PC - */ - waveartist_cmd1(devc, WACMD_INPUTSTART); - - if (portc->open_mode & OPEN_WRITE && - state & PCM_ENABLE_OUTPUT) - /* - * enable DAC data transfer from PC - */ - waveartist_cmd1(devc, WACMD_OUTPUTSTART); - - spin_unlock_irqrestore(&waveartist_lock, flags); -} - -static int -waveartist_set_speed(int dev, int arg) -{ - struct wavnc_port_info *portc = (struct wavnc_port_info *) - audio_devs[dev]->portc; - - if (arg <= 0) - return portc->speed; - - if (arg < 5000) - arg = 5000; - if (arg > 44100) - arg = 44100; - - portc->speed = arg; - return portc->speed; - -} - -static short -waveartist_set_channels(int dev, short arg) -{ - struct wavnc_port_info *portc = (struct wavnc_port_info *) - audio_devs[dev]->portc; - - if (arg != 1 && arg != 2) - return portc->channels; - - portc->channels = arg; - return arg; -} - -static unsigned int -waveartist_set_bits(int dev, unsigned int arg) -{ - struct wavnc_port_info *portc = (struct wavnc_port_info *) - audio_devs[dev]->portc; - - if (arg == 0) - return portc->audio_format; - - if ((arg != AFMT_U8) && (arg != AFMT_S16_LE) && (arg != AFMT_S8)) - arg = AFMT_U8; - - portc->audio_format = arg; - - return arg; -} - -static struct audio_driver waveartist_audio_driver = { - .owner = THIS_MODULE, - .open = waveartist_open, - .close = waveartist_close, - .output_block = waveartist_output_block, - .start_input = waveartist_start_input, - .ioctl = waveartist_ioctl, - .prepare_for_input = waveartist_prepare_for_input, - .prepare_for_output = waveartist_prepare_for_output, - .halt_io = waveartist_halt, - .halt_input = waveartist_halt_input, - .halt_output = waveartist_halt_output, - .trigger = waveartist_trigger, - .set_speed = waveartist_set_speed, - .set_bits = waveartist_set_bits, - .set_channels = waveartist_set_channels -}; - - -static irqreturn_t -waveartist_intr(int irq, void *dev_id) -{ - struct wavnc_info *devc = dev_id; - int irqstatus, status; - - spin_lock(&waveartist_lock); - irqstatus = inb(devc->hw.io_base + IRQSTAT); - status = inb(devc->hw.io_base + STATR); - - if (debug_flg & DEBUG_INTR) - printk("waveartist_intr: stat=%02x, irqstat=%02x\n", - status, irqstatus); - - if (status & IRQ_REQ) /* Clear interrupt */ - waveartist_iack(devc); - else - printk(KERN_WARNING "waveartist: unexpected interrupt\n"); - - if (irqstatus & 0x01) { - int temp = 1; - - /* PCM buffer done - */ - if ((status & DMA0) && (devc->audio_mode & PCM_ENABLE_OUTPUT)) { - DMAbuf_outputintr(devc->playback_dev, 1); - temp = 0; - } - if ((status & DMA1) && (devc->audio_mode & PCM_ENABLE_INPUT)) { - DMAbuf_inputintr(devc->record_dev); - temp = 0; - } - if (temp) //default: - printk(KERN_WARNING "waveartist: Unknown interrupt\n"); - } - if (irqstatus & 0x2) - // We do not use SB mode natively... - printk(KERN_WARNING "waveartist: Unexpected SB interrupt...\n"); - spin_unlock(&waveartist_lock); - return IRQ_HANDLED; -} - -/* ------------------------------------------------------------------------- - * Mixer stuff - */ -struct mix_ent { - unsigned char reg_l; - unsigned char reg_r; - unsigned char shift; - unsigned char max; -}; - -static const struct mix_ent mix_devs[SOUND_MIXER_NRDEVICES] = { - { 2, 6, 1, 7 }, /* SOUND_MIXER_VOLUME */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_BASS */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_TREBLE */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_SYNTH */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_PCM */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_SPEAKER */ - { 0, 4, 6, 31 }, /* SOUND_MIXER_LINE */ - { 2, 6, 4, 3 }, /* SOUND_MIXER_MIC */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_CD */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_IMIX */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_ALTPCM */ -#if 0 - { 3, 7, 0, 10 }, /* SOUND_MIXER_RECLEV */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_IGAIN */ -#else - { 0, 0, 0, 0 }, /* SOUND_MIXER_RECLEV */ - { 3, 7, 0, 7 }, /* SOUND_MIXER_IGAIN */ -#endif - { 0, 0, 0, 0 }, /* SOUND_MIXER_OGAIN */ - { 0, 4, 1, 31 }, /* SOUND_MIXER_LINE1 */ - { 1, 5, 6, 31 }, /* SOUND_MIXER_LINE2 */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_LINE3 */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_DIGITAL1 */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_DIGITAL2 */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_DIGITAL3 */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_PHONEIN */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_PHONEOUT */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_VIDEO */ - { 0, 0, 0, 0 }, /* SOUND_MIXER_RADIO */ - { 0, 0, 0, 0 } /* SOUND_MIXER_MONITOR */ -}; - -static void -waveartist_mixer_update(struct wavnc_info *devc, int whichDev) -{ - unsigned int lev_left, lev_right; - - lev_left = devc->levels[whichDev] & 0xff; - lev_right = devc->levels[whichDev] >> 8; - - if (lev_left > 100) - lev_left = 100; - if (lev_right > 100) - lev_right = 100; - -#define SCALE(lev,max) ((lev) * (max) / 100) - - if (machine_is_netwinder() && whichDev == SOUND_MIXER_PHONEOUT) - whichDev = SOUND_MIXER_VOLUME; - - if (mix_devs[whichDev].reg_l || mix_devs[whichDev].reg_r) { - const struct mix_ent *mix = mix_devs + whichDev; - unsigned int mask, left, right; - - mask = mix->max << mix->shift; - lev_left = SCALE(lev_left, mix->max) << mix->shift; - lev_right = SCALE(lev_right, mix->max) << mix->shift; - - /* read left setting */ - left = waveartist_cmd1_r(devc, WACMD_GET_LEVEL | - mix->reg_l << 8); - - /* read right setting */ - right = waveartist_cmd1_r(devc, WACMD_GET_LEVEL | - mix->reg_r << 8); - - left = (left & ~mask) | (lev_left & mask); - right = (right & ~mask) | (lev_right & mask); - - /* write left,right back */ - waveartist_cmd3(devc, WACMD_SET_MIXER, left, right); - } else { - switch(whichDev) { - case SOUND_MIXER_PCM: - waveartist_cmd3(devc, WACMD_SET_LEVEL, - SCALE(lev_left, 32767), - SCALE(lev_right, 32767)); - break; - - case SOUND_MIXER_SYNTH: - waveartist_cmd3(devc, 0x0100 | WACMD_SET_LEVEL, - SCALE(lev_left, 32767), - SCALE(lev_right, 32767)); - break; - } - } -} - -/* - * Set the ADC MUX to the specified values. We do NOT do any - * checking of the values passed, since we assume that the - * relevant *_select_input function has done that for us. - */ -static void -waveartist_set_adc_mux(struct wavnc_info *devc, char left_dev, - char right_dev) -{ - unsigned int reg_08, reg_09; - - reg_08 = waveartist_cmd1_r(devc, WACMD_GET_LEVEL | 0x0800); - reg_09 = waveartist_cmd1_r(devc, WACMD_GET_LEVEL | 0x0900); - - reg_08 = (reg_08 & ~0x3f) | right_dev << 3 | left_dev; - - waveartist_cmd3(devc, WACMD_SET_MIXER, reg_08, reg_09); -} - -/* - * Decode a recording mask into a mixer selection as follows: - * - * OSS Source WA Source Actual source - * SOUND_MASK_IMIX Mixer Mixer output (same as AD1848) - * SOUND_MASK_LINE Line Line in - * SOUND_MASK_LINE1 Aux 1 Aux 1 in - * SOUND_MASK_LINE2 Aux 2 Aux 2 in - * SOUND_MASK_MIC Mic Microphone - */ -static unsigned int -waveartist_select_input(struct wavnc_info *devc, unsigned int recmask, - unsigned char *dev_l, unsigned char *dev_r) -{ - unsigned int recdev = ADC_MUX_NONE; - - if (recmask & SOUND_MASK_IMIX) { - recmask = SOUND_MASK_IMIX; - recdev = ADC_MUX_MIXER; - } else if (recmask & SOUND_MASK_LINE2) { - recmask = SOUND_MASK_LINE2; - recdev = ADC_MUX_AUX2; - } else if (recmask & SOUND_MASK_LINE1) { - recmask = SOUND_MASK_LINE1; - recdev = ADC_MUX_AUX1; - } else if (recmask & SOUND_MASK_LINE) { - recmask = SOUND_MASK_LINE; - recdev = ADC_MUX_LINE; - } else if (recmask & SOUND_MASK_MIC) { - recmask = SOUND_MASK_MIC; - recdev = ADC_MUX_MIC; - } - - *dev_l = *dev_r = recdev; - - return recmask; -} - -static int -waveartist_decode_mixer(struct wavnc_info *devc, int dev, - unsigned char lev_l, - unsigned char lev_r) -{ - switch (dev) { - case SOUND_MIXER_VOLUME: - case SOUND_MIXER_SYNTH: - case SOUND_MIXER_PCM: - case SOUND_MIXER_LINE: - case SOUND_MIXER_MIC: - case SOUND_MIXER_IGAIN: - case SOUND_MIXER_LINE1: - case SOUND_MIXER_LINE2: - devc->levels[dev] = lev_l | lev_r << 8; - break; - - case SOUND_MIXER_IMIX: - break; - - default: - dev = -EINVAL; - break; - } - - return dev; -} - -static int waveartist_get_mixer(struct wavnc_info *devc, int dev) -{ - return devc->levels[dev]; -} - -static const struct waveartist_mixer_info waveartist_mixer = { - .supported_devs = SUPPORTED_MIXER_DEVICES | SOUND_MASK_IGAIN, - .recording_devs = SOUND_MASK_LINE | SOUND_MASK_MIC | - SOUND_MASK_LINE1 | SOUND_MASK_LINE2 | - SOUND_MASK_IMIX, - .stereo_devs = (SUPPORTED_MIXER_DEVICES | SOUND_MASK_IGAIN) & ~ - (SOUND_MASK_SPEAKER | SOUND_MASK_IMIX), - .select_input = waveartist_select_input, - .decode_mixer = waveartist_decode_mixer, - .get_mixer = waveartist_get_mixer, -}; - -static void -waveartist_set_recmask(struct wavnc_info *devc, unsigned int recmask) -{ - unsigned char dev_l, dev_r; - - recmask &= devc->mix->recording_devs; - - /* - * If more than one recording device selected, - * disable the device that is currently in use. - */ - if (hweight32(recmask) > 1) - recmask &= ~devc->recmask; - - /* - * Translate the recording device mask into - * the ADC multiplexer settings. - */ - devc->recmask = devc->mix->select_input(devc, recmask, - &dev_l, &dev_r); - - waveartist_set_adc_mux(devc, dev_l, dev_r); -} - -static int -waveartist_set_mixer(struct wavnc_info *devc, int dev, unsigned int level) -{ - unsigned int lev_left = level & 0x00ff; - unsigned int lev_right = (level & 0xff00) >> 8; - - if (lev_left > 100) - lev_left = 100; - if (lev_right > 100) - lev_right = 100; - - /* - * Mono devices have their right volume forced to their - * left volume. (from ALSA driver OSS emulation). - */ - if (!(devc->mix->stereo_devs & (1 << dev))) - lev_right = lev_left; - - dev = devc->mix->decode_mixer(devc, dev, lev_left, lev_right); - - if (dev >= 0) - waveartist_mixer_update(devc, dev); - - return dev < 0 ? dev : 0; -} - -static int -waveartist_mixer_ioctl(int dev, unsigned int cmd, void __user * arg) -{ - struct wavnc_info *devc = (struct wavnc_info *)audio_devs[dev]->devc; - int ret = 0, val, nr; - - /* - * All SOUND_MIXER_* ioctls use type 'M' - */ - if (((cmd >> 8) & 255) != 'M') - return -ENOIOCTLCMD; - -#ifdef CONFIG_ARCH_NETWINDER - if (machine_is_netwinder()) { - ret = vnc_private_ioctl(dev, cmd, arg); - if (ret != -ENOIOCTLCMD) - return ret; - else - ret = 0; - } -#endif - - nr = cmd & 0xff; - - if (_SIOC_DIR(cmd) & _SIOC_WRITE) { - if (get_user(val, (int __user *)arg)) - return -EFAULT; - - switch (nr) { - case SOUND_MIXER_RECSRC: - waveartist_set_recmask(devc, val); - break; - - default: - ret = -EINVAL; - if (nr < SOUND_MIXER_NRDEVICES && - devc->mix->supported_devs & (1 << nr)) - ret = waveartist_set_mixer(devc, nr, val); - } - } - - if (ret == 0 && _SIOC_DIR(cmd) & _SIOC_READ) { - ret = -EINVAL; - - switch (nr) { - case SOUND_MIXER_RECSRC: - ret = devc->recmask; - break; - - case SOUND_MIXER_DEVMASK: - ret = devc->mix->supported_devs; - break; - - case SOUND_MIXER_STEREODEVS: - ret = devc->mix->stereo_devs; - break; - - case SOUND_MIXER_RECMASK: - ret = devc->mix->recording_devs; - break; - - case SOUND_MIXER_CAPS: - ret = SOUND_CAP_EXCL_INPUT; - break; - - default: - if (nr < SOUND_MIXER_NRDEVICES) - ret = devc->mix->get_mixer(devc, nr); - break; - } - - if (ret >= 0) - ret = put_user(ret, (int __user *)arg) ? -EFAULT : 0; - } - - return ret; -} - -static struct mixer_operations waveartist_mixer_operations = -{ - .owner = THIS_MODULE, - .id = "WaveArtist", - .name = "WaveArtist", - .ioctl = waveartist_mixer_ioctl -}; - -static void -waveartist_mixer_reset(struct wavnc_info *devc) -{ - int i; - - if (debug_flg & DEBUG_MIXER) - printk("%s: mixer_reset\n", devc->hw.name); - - /* - * reset mixer cmd - */ - waveartist_cmd1(devc, WACMD_RST_MIXER); - - /* - * set input for ADC to come from 'quiet' - * turn on default modes - */ - waveartist_cmd3(devc, WACMD_SET_MIXER, 0x9800, 0xa836); - - /* - * set mixer input select to none, RX filter gains 0 dB - */ - waveartist_cmd3(devc, WACMD_SET_MIXER, 0x4c00, 0x8c00); - - /* - * set bit 0 reg 2 to 1 - unmute MonoOut - */ - waveartist_cmd3(devc, WACMD_SET_MIXER, 0x2801, 0x6800); - - /* set default input device = internal mic - * current recording device = none - */ - waveartist_set_recmask(devc, 0); - - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) - waveartist_mixer_update(devc, i); -} - -static int __init waveartist_init(struct wavnc_info *devc) -{ - struct wavnc_port_info *portc; - char rev[3], dev_name[64]; - int my_dev; - - if (waveartist_reset(devc)) - return -ENODEV; - - sprintf(dev_name, "%s (%s", devc->hw.name, devc->chip_name); - - if (waveartist_getrev(devc, rev)) { - strcat(dev_name, " rev. "); - strcat(dev_name, rev); - } - strcat(dev_name, ")"); - - conf_printf2(dev_name, devc->hw.io_base, devc->hw.irq, - devc->hw.dma, devc->hw.dma2); - - portc = kzalloc(sizeof(struct wavnc_port_info), GFP_KERNEL); - if (portc == NULL) - goto nomem; - - my_dev = sound_install_audiodrv(AUDIO_DRIVER_VERSION, dev_name, - &waveartist_audio_driver, sizeof(struct audio_driver), - devc->audio_flags, AFMT_U8 | AFMT_S16_LE | AFMT_S8, - devc, devc->hw.dma, devc->hw.dma2); - - if (my_dev < 0) - goto free; - - audio_devs[my_dev]->portc = portc; - - waveartist_mixer_reset(devc); - - /* - * clear any pending interrupt - */ - waveartist_iack(devc); - - if (request_irq(devc->hw.irq, waveartist_intr, 0, devc->hw.name, devc) < 0) { - printk(KERN_ERR "%s: IRQ %d in use\n", - devc->hw.name, devc->hw.irq); - goto uninstall; - } - - if (sound_alloc_dma(devc->hw.dma, devc->hw.name)) { - printk(KERN_ERR "%s: Can't allocate DMA%d\n", - devc->hw.name, devc->hw.dma); - goto uninstall_irq; - } - - if (devc->hw.dma != devc->hw.dma2 && devc->hw.dma2 != NO_DMA) - if (sound_alloc_dma(devc->hw.dma2, devc->hw.name)) { - printk(KERN_ERR "%s: can't allocate DMA%d\n", - devc->hw.name, devc->hw.dma2); - goto uninstall_dma; - } - - waveartist_set_ctlr(&devc->hw, 0, DMA1_IE | DMA0_IE); - - audio_devs[my_dev]->mixer_dev = - sound_install_mixer(MIXER_DRIVER_VERSION, - dev_name, - &waveartist_mixer_operations, - sizeof(struct mixer_operations), - devc); - - return my_dev; - -uninstall_dma: - sound_free_dma(devc->hw.dma); - -uninstall_irq: - free_irq(devc->hw.irq, devc); - -uninstall: - sound_unload_audiodev(my_dev); - -free: - kfree(portc); - -nomem: - return -1; -} - -static int __init probe_waveartist(struct address_info *hw_config) -{ - struct wavnc_info *devc = &adev_info[nr_waveartist_devs]; - - if (nr_waveartist_devs >= MAX_AUDIO_DEV) { - printk(KERN_WARNING "waveartist: too many audio devices\n"); - return 0; - } - - if (!request_region(hw_config->io_base, 15, hw_config->name)) { - printk(KERN_WARNING "WaveArtist: I/O port conflict\n"); - return 0; - } - - if (hw_config->irq > 15 || hw_config->irq < 0) { - release_region(hw_config->io_base, 15); - printk(KERN_WARNING "WaveArtist: Bad IRQ %d\n", - hw_config->irq); - return 0; - } - - if (hw_config->dma != 3) { - release_region(hw_config->io_base, 15); - printk(KERN_WARNING "WaveArtist: Bad DMA %d\n", - hw_config->dma); - return 0; - } - - hw_config->name = "WaveArtist"; - devc->hw = *hw_config; - devc->open_mode = 0; - devc->chip_name = "RWA-010"; - - return 1; -} - -static void __init -attach_waveartist(struct address_info *hw, const struct waveartist_mixer_info *mix) -{ - struct wavnc_info *devc = &adev_info[nr_waveartist_devs]; - - /* - * NOTE! If irq < 0, there is another driver which has allocated the - * IRQ so that this driver doesn't need to allocate/deallocate it. - * The actually used IRQ is ABS(irq). - */ - devc->hw = *hw; - devc->hw.irq = (hw->irq > 0) ? hw->irq : 0; - devc->open_mode = 0; - devc->playback_dev = 0; - devc->record_dev = 0; - devc->audio_flags = DMA_AUTOMODE; - devc->levels = levels; - - if (hw->dma != hw->dma2 && hw->dma2 != NO_DMA) - devc->audio_flags |= DMA_DUPLEX; - - devc->mix = mix; - devc->dev_no = waveartist_init(devc); - - if (devc->dev_no < 0) - release_region(hw->io_base, 15); - else { -#ifdef CONFIG_ARCH_NETWINDER - if (machine_is_netwinder()) { - setup_timer(&vnc_timer, vnc_slider_tick, - nr_waveartist_devs); - mod_timer(&vnc_timer, jiffies); - - vnc_configure_mixer(devc, 0); - - devc->no_autoselect = 1; - } -#endif - nr_waveartist_devs += 1; - } -} - -static void __exit unload_waveartist(struct address_info *hw) -{ - struct wavnc_info *devc = NULL; - int i; - - for (i = 0; i < nr_waveartist_devs; i++) - if (hw->io_base == adev_info[i].hw.io_base) { - devc = adev_info + i; - break; - } - - if (devc != NULL) { - int mixer; - -#ifdef CONFIG_ARCH_NETWINDER - if (machine_is_netwinder()) - del_timer(&vnc_timer); -#endif - - release_region(devc->hw.io_base, 15); - - waveartist_set_ctlr(&devc->hw, DMA1_IE|DMA0_IE, 0); - - if (devc->hw.irq >= 0) - free_irq(devc->hw.irq, devc); - - sound_free_dma(devc->hw.dma); - - if (devc->hw.dma != devc->hw.dma2 && - devc->hw.dma2 != NO_DMA) - sound_free_dma(devc->hw.dma2); - - mixer = audio_devs[devc->dev_no]->mixer_dev; - - if (mixer >= 0) - sound_unload_mixerdev(mixer); - - if (devc->dev_no >= 0) - sound_unload_audiodev(devc->dev_no); - - nr_waveartist_devs -= 1; - - for (; i < nr_waveartist_devs; i++) - adev_info[i] = adev_info[i + 1]; - } else - printk(KERN_WARNING "waveartist: can't find device " - "to unload\n"); -} - -#ifdef CONFIG_ARCH_NETWINDER - -/* - * Rebel.com Netwinder specifics... - */ - -#include - -#define VNC_TIMER_PERIOD (HZ/4) //check slider 4 times/sec - -#define MIXER_PRIVATE3_RESET 0x53570000 -#define MIXER_PRIVATE3_READ 0x53570001 -#define MIXER_PRIVATE3_WRITE 0x53570002 - -#define VNC_MUTE_INTERNAL_SPKR 0x01 //the sw mute on/off control bit -#define VNC_MUTE_LINE_OUT 0x10 -#define VNC_PHONE_DETECT 0x20 -#define VNC_HANDSET_DETECT 0x40 -#define VNC_DISABLE_AUTOSWITCH 0x80 - -static inline void -vnc_mute_spkr(struct wavnc_info *devc) -{ - unsigned long flags; - - raw_spin_lock_irqsave(&nw_gpio_lock, flags); - nw_cpld_modify(CPLD_UNMUTE, devc->spkr_mute_state ? 0 : CPLD_UNMUTE); - raw_spin_unlock_irqrestore(&nw_gpio_lock, flags); -} - -static void -vnc_mute_lout(struct wavnc_info *devc) -{ - unsigned int left, right; - - left = waveartist_cmd1_r(devc, WACMD_GET_LEVEL); - right = waveartist_cmd1_r(devc, WACMD_GET_LEVEL | 0x400); - - if (devc->line_mute_state) { - left &= ~1; - right &= ~1; - } else { - left |= 1; - right |= 1; - } - waveartist_cmd3(devc, WACMD_SET_MIXER, left, right); - -} - -static int -vnc_volume_slider(struct wavnc_info *devc) -{ - static signed int old_slider_volume; - unsigned long flags; - signed int volume = 255; - - *CSR_TIMER1_LOAD = 0x00ffffff; - - spin_lock_irqsave(&waveartist_lock, flags); - - outb(0xFF, 0x201); - *CSR_TIMER1_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_DIV1; - - while (volume && (inb(0x201) & 0x01)) - volume--; - - *CSR_TIMER1_CNTL = 0; - - spin_unlock_irqrestore(&waveartist_lock,flags); - - volume = 0x00ffffff - *CSR_TIMER1_VALUE; - - -#ifndef REVERSE - volume = 150 - (volume >> 5); -#else - volume = (volume >> 6) - 25; -#endif - - if (volume < 0) - volume = 0; - - if (volume > 100) - volume = 100; - - /* - * slider quite often reads +-8, so debounce this random noise - */ - if (abs(volume - old_slider_volume) > 7) { - old_slider_volume = volume; - - if (debug_flg & DEBUG_MIXER) - printk(KERN_DEBUG "Slider volume: %d.\n", volume); - } - - return old_slider_volume; -} - -/* - * Decode a recording mask into a mixer selection on the NetWinder - * as follows: - * - * OSS Source WA Source Actual source - * SOUND_MASK_IMIX Mixer Mixer output (same as AD1848) - * SOUND_MASK_LINE Line Line in - * SOUND_MASK_LINE1 Left Mic Handset - * SOUND_MASK_PHONEIN Left Aux Telephone microphone - * SOUND_MASK_MIC Right Mic Builtin microphone - */ -static unsigned int -netwinder_select_input(struct wavnc_info *devc, unsigned int recmask, - unsigned char *dev_l, unsigned char *dev_r) -{ - unsigned int recdev_l = ADC_MUX_NONE, recdev_r = ADC_MUX_NONE; - - if (recmask & SOUND_MASK_IMIX) { - recmask = SOUND_MASK_IMIX; - recdev_l = ADC_MUX_MIXER; - recdev_r = ADC_MUX_MIXER; - } else if (recmask & SOUND_MASK_LINE) { - recmask = SOUND_MASK_LINE; - recdev_l = ADC_MUX_LINE; - recdev_r = ADC_MUX_LINE; - } else if (recmask & SOUND_MASK_LINE1) { - recmask = SOUND_MASK_LINE1; - waveartist_cmd1(devc, WACMD_SET_MONO); /* left */ - recdev_l = ADC_MUX_MIC; - recdev_r = ADC_MUX_NONE; - } else if (recmask & SOUND_MASK_PHONEIN) { - recmask = SOUND_MASK_PHONEIN; - waveartist_cmd1(devc, WACMD_SET_MONO); /* left */ - recdev_l = ADC_MUX_AUX1; - recdev_r = ADC_MUX_NONE; - } else if (recmask & SOUND_MASK_MIC) { - recmask = SOUND_MASK_MIC; - waveartist_cmd1(devc, WACMD_SET_MONO | 0x100); /* right */ - recdev_l = ADC_MUX_NONE; - recdev_r = ADC_MUX_MIC; - } - - *dev_l = recdev_l; - *dev_r = recdev_r; - - return recmask; -} - -static int -netwinder_decode_mixer(struct wavnc_info *devc, int dev, unsigned char lev_l, - unsigned char lev_r) -{ - switch (dev) { - case SOUND_MIXER_VOLUME: - case SOUND_MIXER_SYNTH: - case SOUND_MIXER_PCM: - case SOUND_MIXER_LINE: - case SOUND_MIXER_IGAIN: - devc->levels[dev] = lev_l | lev_r << 8; - break; - - case SOUND_MIXER_MIC: /* right mic only */ - devc->levels[SOUND_MIXER_MIC] &= 0xff; - devc->levels[SOUND_MIXER_MIC] |= lev_l << 8; - break; - - case SOUND_MIXER_LINE1: /* left mic only */ - devc->levels[SOUND_MIXER_MIC] &= 0xff00; - devc->levels[SOUND_MIXER_MIC] |= lev_l; - dev = SOUND_MIXER_MIC; - break; - - case SOUND_MIXER_PHONEIN: /* left aux only */ - devc->levels[SOUND_MIXER_LINE1] = lev_l; - dev = SOUND_MIXER_LINE1; - break; - - case SOUND_MIXER_IMIX: - case SOUND_MIXER_PHONEOUT: - break; - - default: - dev = -EINVAL; - break; - } - return dev; -} - -static int netwinder_get_mixer(struct wavnc_info *devc, int dev) -{ - int levels; - - switch (dev) { - case SOUND_MIXER_VOLUME: - case SOUND_MIXER_SYNTH: - case SOUND_MIXER_PCM: - case SOUND_MIXER_LINE: - case SOUND_MIXER_IGAIN: - levels = devc->levels[dev]; - break; - - case SOUND_MIXER_MIC: /* builtin mic: right mic only */ - levels = devc->levels[SOUND_MIXER_MIC] >> 8; - levels |= levels << 8; - break; - - case SOUND_MIXER_LINE1: /* handset mic: left mic only */ - levels = devc->levels[SOUND_MIXER_MIC] & 0xff; - levels |= levels << 8; - break; - - case SOUND_MIXER_PHONEIN: /* phone mic: left aux1 only */ - levels = devc->levels[SOUND_MIXER_LINE1] & 0xff; - levels |= levels << 8; - break; - - default: - levels = 0; - } - - return levels; -} - -/* - * Waveartist specific mixer information. - */ -static const struct waveartist_mixer_info netwinder_mixer = { - .supported_devs = SOUND_MASK_VOLUME | SOUND_MASK_SYNTH | - SOUND_MASK_PCM | SOUND_MASK_SPEAKER | - SOUND_MASK_LINE | SOUND_MASK_MIC | - SOUND_MASK_IMIX | SOUND_MASK_LINE1 | - SOUND_MASK_PHONEIN | SOUND_MASK_PHONEOUT| - SOUND_MASK_IGAIN, - - .recording_devs = SOUND_MASK_LINE | SOUND_MASK_MIC | - SOUND_MASK_IMIX | SOUND_MASK_LINE1 | - SOUND_MASK_PHONEIN, - - .stereo_devs = SOUND_MASK_VOLUME | SOUND_MASK_SYNTH | - SOUND_MASK_PCM | SOUND_MASK_LINE | - SOUND_MASK_IMIX | SOUND_MASK_IGAIN, - - .select_input = netwinder_select_input, - .decode_mixer = netwinder_decode_mixer, - .get_mixer = netwinder_get_mixer, -}; - -static void -vnc_configure_mixer(struct wavnc_info *devc, unsigned int recmask) -{ - if (!devc->no_autoselect) { - if (devc->handset_detect) { - recmask = SOUND_MASK_LINE1; - devc->spkr_mute_state = devc->line_mute_state = 1; - } else if (devc->telephone_detect) { - recmask = SOUND_MASK_PHONEIN; - devc->spkr_mute_state = devc->line_mute_state = 1; - } else { - /* unless someone has asked for LINE-IN, - * we default to MIC - */ - if ((devc->recmask & SOUND_MASK_LINE) == 0) - devc->recmask = SOUND_MASK_MIC; - devc->spkr_mute_state = devc->line_mute_state = 0; - } - vnc_mute_spkr(devc); - vnc_mute_lout(devc); - - if (recmask != devc->recmask) - waveartist_set_recmask(devc, recmask); - } -} - -static int -vnc_slider(struct wavnc_info *devc) -{ - signed int slider_volume; - unsigned int temp, old_hs, old_td; - - /* - * read the "buttons" state. - * Bit 4 = 0 means handset present - * Bit 5 = 1 means phone offhook - */ - temp = inb(0x201); - - old_hs = devc->handset_detect; - old_td = devc->telephone_detect; - - devc->handset_detect = !(temp & 0x10); - devc->telephone_detect = !!(temp & 0x20); - - if (!devc->no_autoselect && - (old_hs != devc->handset_detect || - old_td != devc->telephone_detect)) - vnc_configure_mixer(devc, devc->recmask); - - slider_volume = vnc_volume_slider(devc); - - /* - * If we're using software controlled volume, and - * the slider moves by more than 20%, then we - * switch back to slider controlled volume. - */ - if (abs(devc->slider_vol - slider_volume) > 20) - devc->use_slider = 1; - - /* - * use only left channel - */ - temp = levels[SOUND_MIXER_VOLUME] & 0xFF; - - if (slider_volume != temp && devc->use_slider) { - devc->slider_vol = slider_volume; - - waveartist_set_mixer(devc, SOUND_MIXER_VOLUME, - slider_volume | slider_volume << 8); - - return 1; - } - - return 0; -} - -static void -vnc_slider_tick(unsigned long data) -{ - int next_timeout; - - if (vnc_slider(adev_info + data)) - next_timeout = 5; // mixer reported change - else - next_timeout = VNC_TIMER_PERIOD; - - mod_timer(&vnc_timer, jiffies + next_timeout); -} - -static int -vnc_private_ioctl(int dev, unsigned int cmd, int __user * arg) -{ - struct wavnc_info *devc = (struct wavnc_info *)audio_devs[dev]->devc; - int val; - - switch (cmd) { - case SOUND_MIXER_PRIVATE1: - { - u_int prev_spkr_mute, prev_line_mute, prev_auto_state; - int val; - - if (get_user(val, arg)) - return -EFAULT; - - /* check if parameter is logical */ - if (val & ~(VNC_MUTE_INTERNAL_SPKR | - VNC_MUTE_LINE_OUT | - VNC_DISABLE_AUTOSWITCH)) - return -EINVAL; - - prev_auto_state = devc->no_autoselect; - prev_spkr_mute = devc->spkr_mute_state; - prev_line_mute = devc->line_mute_state; - - devc->no_autoselect = (val & VNC_DISABLE_AUTOSWITCH) ? 1 : 0; - devc->spkr_mute_state = (val & VNC_MUTE_INTERNAL_SPKR) ? 1 : 0; - devc->line_mute_state = (val & VNC_MUTE_LINE_OUT) ? 1 : 0; - - if (prev_spkr_mute != devc->spkr_mute_state) - vnc_mute_spkr(devc); - - if (prev_line_mute != devc->line_mute_state) - vnc_mute_lout(devc); - - if (prev_auto_state != devc->no_autoselect) - vnc_configure_mixer(devc, devc->recmask); - - return 0; - } - - case SOUND_MIXER_PRIVATE2: - if (get_user(val, arg)) - return -EFAULT; - - switch (val) { -#define VNC_SOUND_PAUSE 0x53 //to pause the DSP -#define VNC_SOUND_RESUME 0x57 //to unpause the DSP - case VNC_SOUND_PAUSE: - waveartist_cmd1(devc, 0x16); - break; - - case VNC_SOUND_RESUME: - waveartist_cmd1(devc, 0x18); - break; - - default: - return -EINVAL; - } - return 0; - - /* private ioctl to allow bulk access to waveartist */ - case SOUND_MIXER_PRIVATE3: - { - unsigned long flags; - int mixer_reg[15], i, val; - - if (get_user(val, arg)) - return -EFAULT; - if (copy_from_user(mixer_reg, (void *)val, sizeof(mixer_reg))) - return -EFAULT; - - switch (mixer_reg[14]) { - case MIXER_PRIVATE3_RESET: - waveartist_mixer_reset(devc); - break; - - case MIXER_PRIVATE3_WRITE: - waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[0], mixer_reg[4]); - waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[1], mixer_reg[5]); - waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[2], mixer_reg[6]); - waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[3], mixer_reg[7]); - waveartist_cmd3(devc, WACMD_SET_MIXER, mixer_reg[8], mixer_reg[9]); - - waveartist_cmd3(devc, WACMD_SET_LEVEL, mixer_reg[10], mixer_reg[11]); - waveartist_cmd3(devc, WACMD_SET_LEVEL, mixer_reg[12], mixer_reg[13]); - break; - - case MIXER_PRIVATE3_READ: - spin_lock_irqsave(&waveartist_lock, flags); - - for (i = 0x30; i < 14 << 8; i += 1 << 8) - waveartist_cmd(devc, 1, &i, 1, mixer_reg + (i >> 8)); - - spin_unlock_irqrestore(&waveartist_lock, flags); - - if (copy_to_user((void *)val, mixer_reg, sizeof(mixer_reg))) - return -EFAULT; - break; - - default: - return -EINVAL; - } - return 0; - } - - /* read back the state from PRIVATE1 */ - case SOUND_MIXER_PRIVATE4: - val = (devc->spkr_mute_state ? VNC_MUTE_INTERNAL_SPKR : 0) | - (devc->line_mute_state ? VNC_MUTE_LINE_OUT : 0) | - (devc->handset_detect ? VNC_HANDSET_DETECT : 0) | - (devc->telephone_detect ? VNC_PHONE_DETECT : 0) | - (devc->no_autoselect ? VNC_DISABLE_AUTOSWITCH : 0); - - return put_user(val, arg) ? -EFAULT : 0; - } - - if (_SIOC_DIR(cmd) & _SIOC_WRITE) { - /* - * special case for master volume: if we - * received this call - switch from hw - * volume control to a software volume - * control, till the hw volume is modified - * to signal that user wants to be back in - * hardware... - */ - if ((cmd & 0xff) == SOUND_MIXER_VOLUME) - devc->use_slider = 0; - - /* speaker output */ - if ((cmd & 0xff) == SOUND_MIXER_SPEAKER) { - unsigned int val, l, r; - - if (get_user(val, arg)) - return -EFAULT; - - l = val & 0x7f; - r = (val & 0x7f00) >> 8; - val = (l + r) / 2; - devc->levels[SOUND_MIXER_SPEAKER] = val | (val << 8); - devc->spkr_mute_state = (val <= 50); - vnc_mute_spkr(devc); - return 0; - } - } - - return -ENOIOCTLCMD; -} - -#endif - -static struct address_info cfg; - -static int attached; - -static int __initdata io = 0; -static int __initdata irq = 0; -static int __initdata dma = 0; -static int __initdata dma2 = 0; - - -static int __init init_waveartist(void) -{ - const struct waveartist_mixer_info *mix; - - if (!io && machine_is_netwinder()) { - /* - * The NetWinder WaveArtist is at a fixed address. - * If the user does not supply an address, use the - * well-known parameters. - */ - io = 0x250; - irq = 12; - dma = 3; - dma2 = 7; - } - - mix = &waveartist_mixer; -#ifdef CONFIG_ARCH_NETWINDER - if (machine_is_netwinder()) - mix = &netwinder_mixer; -#endif - - cfg.io_base = io; - cfg.irq = irq; - cfg.dma = dma; - cfg.dma2 = dma2; - - if (!probe_waveartist(&cfg)) - return -ENODEV; - - attach_waveartist(&cfg, mix); - attached = 1; - - return 0; -} - -static void __exit cleanup_waveartist(void) -{ - if (attached) - unload_waveartist(&cfg); -} - -module_init(init_waveartist); -module_exit(cleanup_waveartist); - -#ifndef MODULE -static int __init setup_waveartist(char *str) -{ - /* io, irq, dma, dma2 */ - int ints[5]; - - str = get_options(str, ARRAY_SIZE(ints), ints); - - io = ints[1]; - irq = ints[2]; - dma = ints[3]; - dma2 = ints[4]; - - return 1; -} -__setup("waveartist=", setup_waveartist); -#endif - -MODULE_DESCRIPTION("Rockwell WaveArtist RWA-010 sound driver"); -module_param_hw(io, int, ioport, 0); /* IO base */ -module_param_hw(irq, int, irq, 0); /* IRQ */ -module_param_hw(dma, int, dma, 0); /* DMA */ -module_param_hw(dma2, int, dma, 0); /* DMA2 */ -MODULE_LICENSE("GPL"); diff --git a/sound/oss/waveartist.h b/sound/oss/waveartist.h deleted file mode 100644 index dac4ca910d95..000000000000 --- a/sound/oss/waveartist.h +++ /dev/null @@ -1,92 +0,0 @@ -/* - * linux/sound/oss/waveartist.h - * - * def file for Rockwell RWA010 chip set, as installed in Rebel.com NetWinder - */ - -//registers -#define CMDR 0 -#define DATR 2 -#define CTLR 4 -#define STATR 5 -#define IRQSTAT 12 - -//bit defs -//reg STATR -#define CMD_WE 0x80 -#define CMD_RF 0x40 -#define DAT_WE 0x20 -#define DAT_RF 0x10 - -#define IRQ_REQ 0x08 -#define DMA1 0x04 -#define DMA0 0x02 - -//bit defs -//reg CTLR -#define CMD_WEIE 0x80 -#define CMD_RFIE 0x40 -#define DAT_WEIE 0x20 -#define DAT_RFIE 0x10 - -#define RESET 0x08 -#define DMA1_IE 0x04 -#define DMA0_IE 0x02 -#define IRQ_ACK 0x01 - -//commands - -#define WACMD_SYSTEMID 0x00 -#define WACMD_GETREV 0x00 -#define WACMD_INPUTFORMAT 0x10 //0-8S, 1-16S, 2-8U -#define WACMD_INPUTCHANNELS 0x11 //1-Mono, 2-Stereo -#define WACMD_INPUTSPEED 0x12 //sampling rate -#define WACMD_INPUTDMA 0x13 //0-8bit, 1-16bit, 2-PIO -#define WACMD_INPUTSIZE 0x14 //samples to interrupt -#define WACMD_INPUTSTART 0x15 //start ADC -#define WACMD_INPUTPAUSE 0x16 //pause ADC -#define WACMD_INPUTSTOP 0x17 //stop ADC -#define WACMD_INPUTRESUME 0x18 //resume ADC -#define WACMD_INPUTPIO 0x19 //PIO ADC - -#define WACMD_OUTPUTFORMAT 0x20 //0-8S, 1-16S, 2-8U -#define WACMD_OUTPUTCHANNELS 0x21 //1-Mono, 2-Stereo -#define WACMD_OUTPUTSPEED 0x22 //sampling rate -#define WACMD_OUTPUTDMA 0x23 //0-8bit, 1-16bit, 2-PIO -#define WACMD_OUTPUTSIZE 0x24 //samples to interrupt -#define WACMD_OUTPUTSTART 0x25 //start ADC -#define WACMD_OUTPUTPAUSE 0x26 //pause ADC -#define WACMD_OUTPUTSTOP 0x27 //stop ADC -#define WACMD_OUTPUTRESUME 0x28 //resume ADC -#define WACMD_OUTPUTPIO 0x29 //PIO ADC - -#define WACMD_GET_LEVEL 0x30 -#define WACMD_SET_LEVEL 0x31 -#define WACMD_SET_MIXER 0x32 -#define WACMD_RST_MIXER 0x33 -#define WACMD_SET_MONO 0x34 - -/* - * Definitions for left/right recording input mux - */ -#define ADC_MUX_NONE 0 -#define ADC_MUX_MIXER 1 -#define ADC_MUX_LINE 2 -#define ADC_MUX_AUX2 3 -#define ADC_MUX_AUX1 4 -#define ADC_MUX_MIC 5 - -/* - * Definitions for mixer gain settings - */ -#define MIX_GAIN_LINE 0 /* line in */ -#define MIX_GAIN_AUX1 1 /* aux1 */ -#define MIX_GAIN_AUX2 2 /* aux2 */ -#define MIX_GAIN_XMIC 3 /* crossover mic */ -#define MIX_GAIN_MIC 4 /* normal mic */ -#define MIX_GAIN_PREMIC 5 /* preamp mic */ -#define MIX_GAIN_OUT 6 /* output */ -#define MIX_GAIN_MONO 7 /* mono in */ - -int wa_sendcmd(unsigned int cmd); -int wa_writecmd(unsigned int cmd, unsigned int arg); -- cgit v1.2.3 From 707ce9eac5fc3b68f98c887dddea3911a8fc4f9f Mon Sep 17 00:00:00 2001 From: James Ban Date: Mon, 30 Oct 2017 11:32:38 +0900 Subject: regulator: da9211: update for supporting da9223/4/5 This is update for supporting additional devices da9223/4/5. Only device strings is added because only package type is different. Signed-off-by: James Ban Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/da9211.txt | 82 ++++++++++++++++++++-- drivers/regulator/Kconfig | 2 +- drivers/regulator/da9211-regulator.c | 14 ++-- drivers/regulator/da9211-regulator.h | 2 +- include/linux/regulator/da9211.h | 5 +- 5 files changed, 91 insertions(+), 14 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/regulator/da9211.txt b/Documentation/devicetree/bindings/regulator/da9211.txt index 0f2a6f8fcafd..27717e816e71 100644 --- a/Documentation/devicetree/bindings/regulator/da9211.txt +++ b/Documentation/devicetree/bindings/regulator/da9211.txt @@ -1,8 +1,9 @@ -* Dialog Semiconductor DA9211/DA9212/DA9213/DA9214/DA9215 Voltage Regulator +* Dialog Semiconductor DA9211/DA9212/DA9213/DA9223/DA9214/DA9224/DA9215/DA9225 + Voltage Regulator Required properties: -- compatible: "dlg,da9211" or "dlg,da9212" or "dlg,da9213" - or "dlg,da9214" or "dlg,da9215" +- compatible: "dlg,da9211" or "dlg,da9212" or "dlg,da9213" or "dlg,da9223" + or "dlg,da9214" or "dlg,da9224" or "dlg,da9215" or "dlg,da9225" - reg: I2C slave address, usually 0x68. - interrupts: the interrupt outputs of the controller - regulators: A node that houses a sub-node for each regulator within the @@ -16,7 +17,6 @@ Optional properties: - Any optional property defined in regulator.txt Example 1) DA9211 - pmic: da9211@68 { compatible = "dlg,da9211"; reg = <0x68>; @@ -35,7 +35,6 @@ Example 1) DA9211 }; Example 2) DA9212 - pmic: da9212@68 { compatible = "dlg,da9212"; reg = <0x68>; @@ -79,7 +78,25 @@ Example 3) DA9213 }; }; -Example 4) DA9214 +Example 4) DA9223 + pmic: da9223@68 { + compatible = "dlg,da9223"; + reg = <0x68>; + interrupts = <3 27>; + + regulators { + BUCKA { + regulator-name = "VBUCKA"; + regulator-min-microvolt = < 300000>; + regulator-max-microvolt = <1570000>; + regulator-min-microamp = <3000000>; + regulator-max-microamp = <6000000>; + enable-gpios = <&gpio 27 0>; + }; + }; + }; + +Example 5) DA9214 pmic: da9214@68 { compatible = "dlg,da9214"; reg = <0x68>; @@ -105,7 +122,33 @@ Example 4) DA9214 }; }; -Example 5) DA9215 +Example 6) DA9224 + pmic: da9224@68 { + compatible = "dlg,da9224"; + reg = <0x68>; + interrupts = <3 27>; + + regulators { + BUCKA { + regulator-name = "VBUCKA"; + regulator-min-microvolt = < 300000>; + regulator-max-microvolt = <1570000>; + regulator-min-microamp = <3000000>; + regulator-max-microamp = <6000000>; + enable-gpios = <&gpio 27 0>; + }; + BUCKB { + regulator-name = "VBUCKB"; + regulator-min-microvolt = < 300000>; + regulator-max-microvolt = <1570000>; + regulator-min-microamp = <3000000>; + regulator-max-microamp = <6000000>; + enable-gpios = <&gpio 17 0>; + }; + }; + }; + +Example 7) DA9215 pmic: da9215@68 { compatible = "dlg,da9215"; reg = <0x68>; @@ -131,3 +174,28 @@ Example 5) DA9215 }; }; +Example 8) DA9225 + pmic: da9225@68 { + compatible = "dlg,da9225"; + reg = <0x68>; + interrupts = <3 27>; + + regulators { + BUCKA { + regulator-name = "VBUCKA"; + regulator-min-microvolt = < 300000>; + regulator-max-microvolt = <1570000>; + regulator-min-microamp = <4000000>; + regulator-max-microamp = <7000000>; + enable-gpios = <&gpio 27 0>; + }; + BUCKB { + regulator-name = "VBUCKB"; + regulator-min-microvolt = < 300000>; + regulator-max-microvolt = <1570000>; + regulator-min-microamp = <4000000>; + regulator-max-microamp = <7000000>; + enable-gpios = <&gpio 17 0>; + }; + }; + }; diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 0fd6195601ba..96cd55f9e3c5 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -244,7 +244,7 @@ config REGULATOR_DA9210 interface. config REGULATOR_DA9211 - tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9214/DA9215 regulator" + tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9223/DA9214/DA9224/DA9215/DA9225 regulator" depends on I2C select REGMAP_I2C help diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c index aa47280efd32..9b8f47617724 100644 --- a/drivers/regulator/da9211-regulator.c +++ b/drivers/regulator/da9211-regulator.c @@ -1,6 +1,6 @@ /* * da9211-regulator.c - Regulator device driver for DA9211/DA9212 - * /DA9213/DA9214/DA9215 + * /DA9213/DA9223/DA9214/DA9224/DA9215/DA9225 * Copyright (C) 2015 Dialog Semiconductor Ltd. * * This library is free software; you can redistribute it and/or @@ -496,8 +496,11 @@ static const struct i2c_device_id da9211_i2c_id[] = { {"da9211", DA9211}, {"da9212", DA9212}, {"da9213", DA9213}, + {"da9223", DA9223}, {"da9214", DA9214}, + {"da9224", DA9224}, {"da9215", DA9215}, + {"da9225", DA9225}, {}, }; MODULE_DEVICE_TABLE(i2c, da9211_i2c_id); @@ -507,8 +510,11 @@ static const struct of_device_id da9211_dt_ids[] = { { .compatible = "dlg,da9211", .data = &da9211_i2c_id[0] }, { .compatible = "dlg,da9212", .data = &da9211_i2c_id[1] }, { .compatible = "dlg,da9213", .data = &da9211_i2c_id[2] }, - { .compatible = "dlg,da9214", .data = &da9211_i2c_id[3] }, - { .compatible = "dlg,da9215", .data = &da9211_i2c_id[4] }, + { .compatible = "dlg,da9223", .data = &da9211_i2c_id[3] }, + { .compatible = "dlg,da9214", .data = &da9211_i2c_id[4] }, + { .compatible = "dlg,da9224", .data = &da9211_i2c_id[5] }, + { .compatible = "dlg,da9215", .data = &da9211_i2c_id[6] }, + { .compatible = "dlg,da9225", .data = &da9211_i2c_id[7] }, {}, }; MODULE_DEVICE_TABLE(of, da9211_dt_ids); @@ -526,5 +532,5 @@ static struct i2c_driver da9211_regulator_driver = { module_i2c_driver(da9211_regulator_driver); MODULE_AUTHOR("James Ban "); -MODULE_DESCRIPTION("DA9211/DA9212/DA9213/DA9214/DA9215 regulator driver"); +MODULE_DESCRIPTION("DA9211/DA9212/DA9213/DA9223/DA9214/DA9224/DA9215/DA9225 regulator driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/regulator/da9211-regulator.h b/drivers/regulator/da9211-regulator.h index b841bbf330cc..2cb32aab4f82 100644 --- a/drivers/regulator/da9211-regulator.h +++ b/drivers/regulator/da9211-regulator.h @@ -1,6 +1,6 @@ /* * da9211-regulator.h - Regulator definitions for DA9211/DA9212 - * /DA9213/DA9214/DA9215 + * /DA9213/DA9223/DA9214/DA9224/DA9215/DA9225 * Copyright (C) 2015 Dialog Semiconductor Ltd. * * This program is free software; you can redistribute it and/or diff --git a/include/linux/regulator/da9211.h b/include/linux/regulator/da9211.h index 80cb40b7c88d..f2fd2d3bf58f 100644 --- a/include/linux/regulator/da9211.h +++ b/include/linux/regulator/da9211.h @@ -1,6 +1,6 @@ /* * da9211.h - Regulator device driver for DA9211/DA9212 - * /DA9213/DA9214/DA9215 + * /DA9213/DA9223/DA9214/DA9224/DA9215/DA9225 * Copyright (C) 2015 Dialog Semiconductor Ltd. * * This program is free software; you can redistribute it and/or @@ -25,8 +25,11 @@ enum da9211_chip_id { DA9211, DA9212, DA9213, + DA9223, DA9214, + DA9224, DA9215, + DA9225, }; struct da9211_pdata { -- cgit v1.2.3 From 6981fbf3780366093858c5d2dcdaadcd1fbb04be Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Sun, 29 Oct 2017 11:33:40 -0700 Subject: Drivers: hv: vmbus: Expose per-channel interrupts and events counters When investigating performance, it is useful to be able to look at the number of host and guest events per-channel. This is equivalent to per-device interrupt statistics. Signed-off-by: Stephen Hemminger Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- Documentation/ABI/stable/sysfs-bus-vmbus | 26 ++++++++++++++++++++------ drivers/hv/connection.c | 2 ++ drivers/hv/vmbus_drv.c | 16 ++++++++++++++++ include/linux/hyperv.h | 4 ++++ 4 files changed, 42 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/stable/sysfs-bus-vmbus b/Documentation/ABI/stable/sysfs-bus-vmbus index 0ebd8a1537a0..d4077cc60d55 100644 --- a/Documentation/ABI/stable/sysfs-bus-vmbus +++ b/Documentation/ABI/stable/sysfs-bus-vmbus @@ -61,39 +61,53 @@ Date: September. 2017 KernelVersion: 4.14 Contact: Stephen Hemminger Description: Inbound channel signaling state -Users: Debuggig tools +Users: Debugging tools What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/latency Date: September. 2017 KernelVersion: 4.14 Contact: Stephen Hemminger Description: Channel signaling latency -Users: Debuggig tools +Users: Debugging tools What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/out_mask Date: September. 2017 KernelVersion: 4.14 Contact: Stephen Hemminger Description: Outbound channel signaling state -Users: Debuggig tools +Users: Debugging tools What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/pending Date: September. 2017 KernelVersion: 4.14 Contact: Stephen Hemminger Description: Channel interrupt pending state -Users: Debuggig tools +Users: Debugging tools What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/read_avail Date: September. 2017 KernelVersion: 4.14 Contact: Stephen Hemminger Description: Bytes availabble to read -Users: Debuggig tools +Users: Debugging tools What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/write_avail Date: September. 2017 KernelVersion: 4.14 Contact: Stephen Hemminger Description: Bytes availabble to write -Users: Debuggig tools +Users: Debugging tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/events +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger +Description: Number of times we have signaled the host +Users: Debugging tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/interrupts +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger +Description: Number of times we have taken an interrupt (incoming) +Users: Debugging tools diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c index f41901f80b64..b06a6b796819 100644 --- a/drivers/hv/connection.c +++ b/drivers/hv/connection.c @@ -409,6 +409,8 @@ void vmbus_set_event(struct vmbus_channel *channel) if (!channel->is_dedicated_interrupt) vmbus_send_interrupt(child_relid); + ++channel->sig_events; + hv_do_fast_hypercall8(HVCALL_SIGNAL_EVENT, channel->sig_event); } EXPORT_SYMBOL_GPL(vmbus_set_event); diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 1da8e818f4de..bca8188f3c8c 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -944,6 +944,8 @@ static void vmbus_chan_sched(struct hv_per_cpu_context *hv_cpu) if (channel->rescind) continue; + ++channel->interrupts; + switch (channel->callback_mode) { case HV_CALL_ISR: vmbus_channel_isr(channel); @@ -1237,6 +1239,18 @@ static ssize_t channel_latency_show(const struct vmbus_channel *channel, } VMBUS_CHAN_ATTR(latency, S_IRUGO, channel_latency_show, NULL); +static ssize_t channel_interrupts_show(const struct vmbus_channel *channel, char *buf) +{ + return sprintf(buf, "%llu\n", channel->interrupts); +} +VMBUS_CHAN_ATTR(interrupts, S_IRUGO, channel_interrupts_show, NULL); + +static ssize_t channel_events_show(const struct vmbus_channel *channel, char *buf) +{ + return sprintf(buf, "%llu\n", channel->sig_events); +} +VMBUS_CHAN_ATTR(events, S_IRUGO, channel_events_show, NULL); + static struct attribute *vmbus_chan_attrs[] = { &chan_attr_out_mask.attr, &chan_attr_in_mask.attr, @@ -1245,6 +1259,8 @@ static struct attribute *vmbus_chan_attrs[] = { &chan_attr_cpu.attr, &chan_attr_pending.attr, &chan_attr_latency.attr, + &chan_attr_interrupts.attr, + &chan_attr_events.attr, NULL }; diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index ea6b5586ad77..f3e97c5f94c9 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -719,6 +719,10 @@ struct vmbus_channel { struct vmbus_close_msg close_msg; + /* Statistics */ + u64 interrupts; /* Host to Guest interrupts */ + u64 sig_events; /* Guest to Host events */ + /* Channel callback's invoked in softirq context */ struct tasklet_struct callback_event; void (*onchannel_callback)(void *context); -- cgit v1.2.3 From 2bf209b8e28a5cf0a843d16005cfc7a432db888b Mon Sep 17 00:00:00 2001 From: Corentin Labbe Date: Tue, 31 Oct 2017 09:19:08 +0100 Subject: dt-bindings: net: Restore sun8i dwmac binding The original dwmac-sun8i DT bindings have some issue on how to handle integrated PHY and was reverted in last RC of 4.13. But now we have a solution so we need to get back that was reverted. This patch restore dt-bindings documentation about dwmac-sun8i This reverts commit 8aa33ec2f481 ("dt-bindings: net: Revert sun8i dwmac binding") Signed-off-by: Corentin Labbe Acked-by: Rob Herring Acked-by: Florian Fainelli Signed-off-by: Maxime Ripard --- .../devicetree/bindings/net/dwmac-sun8i.txt | 84 ++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/dwmac-sun8i.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/dwmac-sun8i.txt b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt new file mode 100644 index 000000000000..725f3b187886 --- /dev/null +++ b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt @@ -0,0 +1,84 @@ +* Allwinner sun8i GMAC ethernet controller + +This device is a platform glue layer for stmmac. +Please see stmmac.txt for the other unchanged properties. + +Required properties: +- compatible: should be one of the following string: + "allwinner,sun8i-a83t-emac" + "allwinner,sun8i-h3-emac" + "allwinner,sun8i-v3s-emac" + "allwinner,sun50i-a64-emac" +- reg: address and length of the register for the device. +- interrupts: interrupt for the device +- interrupt-names: should be "macirq" +- clocks: A phandle to the reference clock for this device +- clock-names: should be "stmmaceth" +- resets: A phandle to the reset control for this device +- reset-names: should be "stmmaceth" +- phy-mode: See ethernet.txt +- phy-handle: See ethernet.txt +- #address-cells: shall be 1 +- #size-cells: shall be 0 +- syscon: A phandle to the syscon of the SoC with one of the following + compatible string: + - allwinner,sun8i-h3-system-controller + - allwinner,sun8i-v3s-system-controller + - allwinner,sun50i-a64-system-controller + - allwinner,sun8i-a83t-system-controller + +Optional properties: +- allwinner,tx-delay-ps: TX clock delay chain value in ps. Range value is 0-700. Default is 0) +- allwinner,rx-delay-ps: RX clock delay chain value in ps. Range value is 0-3100. Default is 0) +Both delay properties need to be a multiple of 100. They control the delay for +external PHY. + +Optional properties for the following compatibles: + - "allwinner,sun8i-h3-emac", + - "allwinner,sun8i-v3s-emac": +- allwinner,leds-active-low: EPHY LEDs are active low + +Required child node of emac: +- mdio bus node: should be named mdio + +Required properties of the mdio node: +- #address-cells: shall be 1 +- #size-cells: shall be 0 + +The device node referenced by "phy" or "phy-handle" should be a child node +of the mdio node. See phy.txt for the generic PHY bindings. + +Required properties of the phy node with the following compatibles: + - "allwinner,sun8i-h3-emac", + - "allwinner,sun8i-v3s-emac": +- clocks: a phandle to the reference clock for the EPHY +- resets: a phandle to the reset control for the EPHY + +Example: + +emac: ethernet@1c0b000 { + compatible = "allwinner,sun8i-h3-emac"; + syscon = <&syscon>; + reg = <0x01c0b000 0x104>; + interrupts = ; + interrupt-names = "macirq"; + resets = <&ccu RST_BUS_EMAC>; + reset-names = "stmmaceth"; + clocks = <&ccu CLK_BUS_EMAC>; + clock-names = "stmmaceth"; + #address-cells = <1>; + #size-cells = <0>; + + phy-handle = <&int_mii_phy>; + phy-mode = "mii"; + allwinner,leds-active-low; + mdio: mdio { + #address-cells = <1>; + #size-cells = <0>; + int_mii_phy: ethernet-phy@1 { + reg = <1>; + clocks = <&ccu CLK_BUS_EPHY>; + resets = <&ccu RST_BUS_EPHY>; + }; + }; +}; -- cgit v1.2.3 From d5919dcc349d2a16d805ef8096d36e4f519e42ae Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 31 Oct 2017 18:26:15 +0100 Subject: Revert "PM / QoS: Fix device resume latency PM QoS" This reverts commit 0cc2b4e5a020 (PM / QoS: Fix device resume latency PM QoS) as it introduced regressions on multiple systems and the fix-up in commit 2a9a86d5c813 (PM / QoS: Fix default runtime_pm device resume latency) does not address all of them. The original problem that commit 0cc2b4e5a020 was attempting to fix will be addressed later. Fixes: 0cc2b4e5a020 (PM / QoS: Fix device resume latency PM QoS) Reported-by: Geert Uytterhoeven Signed-off-by: Rafael J. Wysocki --- Documentation/ABI/testing/sysfs-devices-power | 4 +- drivers/base/cpu.c | 3 +- drivers/base/power/domain_governor.c | 53 ++++++++++++--------------- drivers/base/power/qos.c | 2 +- drivers/base/power/runtime.c | 2 +- drivers/base/power/sysfs.c | 25 ++----------- drivers/cpuidle/governors/menu.c | 4 +- include/linux/pm_qos.h | 5 +-- 8 files changed, 35 insertions(+), 63 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power index 5cbb6f038615..676fdf5f2a99 100644 --- a/Documentation/ABI/testing/sysfs-devices-power +++ b/Documentation/ABI/testing/sysfs-devices-power @@ -211,9 +211,7 @@ Description: device, after it has been suspended at run time, from a resume request to the moment the device will be ready to process I/O, in microseconds. If it is equal to 0, however, this means that - the PM QoS resume latency may be arbitrary and the special value - "n/a" means that user space cannot accept any resume latency at - all for the given device. + the PM QoS resume latency may be arbitrary. Not all drivers support this attribute. If it isn't supported, it is not present. diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 227bac5f1191..321cd7b4d817 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -377,8 +377,7 @@ int register_cpu(struct cpu *cpu, int num) per_cpu(cpu_sys_devices, num) = &cpu->dev; register_cpu_under_node(num, cpu_to_node(num)); - dev_pm_qos_expose_latency_limit(&cpu->dev, - PM_QOS_RESUME_LATENCY_NO_CONSTRAINT); + dev_pm_qos_expose_latency_limit(&cpu->dev, 0); return 0; } diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c index 51751cc8c9e6..281f949c5ffe 100644 --- a/drivers/base/power/domain_governor.c +++ b/drivers/base/power/domain_governor.c @@ -14,20 +14,23 @@ static int dev_update_qos_constraint(struct device *dev, void *data) { s64 *constraint_ns_p = data; - s64 constraint_ns = -1; + s32 constraint_ns = -1; if (dev->power.subsys_data && dev->power.subsys_data->domain_data) constraint_ns = dev_gpd_data(dev)->td.effective_constraint_ns; - if (constraint_ns < 0) + if (constraint_ns < 0) { constraint_ns = dev_pm_qos_read_value(dev); - - if (constraint_ns == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT) + constraint_ns *= NSEC_PER_USEC; + } + if (constraint_ns == 0) return 0; - constraint_ns *= NSEC_PER_USEC; - - if (constraint_ns < *constraint_ns_p || *constraint_ns_p < 0) + /* + * constraint_ns cannot be negative here, because the device has been + * suspended. + */ + if (constraint_ns < *constraint_ns_p || *constraint_ns_p == 0) *constraint_ns_p = constraint_ns; return 0; @@ -60,14 +63,10 @@ static bool default_suspend_ok(struct device *dev) spin_unlock_irqrestore(&dev->power.lock, flags); - if (constraint_ns == 0) + if (constraint_ns < 0) return false; - if (constraint_ns == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT) - constraint_ns = -1; - else - constraint_ns *= NSEC_PER_USEC; - + constraint_ns *= NSEC_PER_USEC; /* * We can walk the children without any additional locking, because * they all have been suspended at this point and their @@ -77,19 +76,14 @@ static bool default_suspend_ok(struct device *dev) device_for_each_child(dev, &constraint_ns, dev_update_qos_constraint); - if (constraint_ns < 0) { - /* The children have no constraints. */ - td->effective_constraint_ns = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; - td->cached_suspend_ok = true; - } else { - constraint_ns -= td->suspend_latency_ns + td->resume_latency_ns; - if (constraint_ns > 0) { - td->effective_constraint_ns = constraint_ns; - td->cached_suspend_ok = true; - } else { - td->effective_constraint_ns = 0; - } + if (constraint_ns > 0) { + constraint_ns -= td->suspend_latency_ns + + td->resume_latency_ns; + if (constraint_ns == 0) + return false; } + td->effective_constraint_ns = constraint_ns; + td->cached_suspend_ok = constraint_ns >= 0; /* * The children have been suspended already, so we don't need to take @@ -151,14 +145,13 @@ static bool __default_power_down_ok(struct dev_pm_domain *pd, td = &to_gpd_data(pdd)->td; constraint_ns = td->effective_constraint_ns; /* default_suspend_ok() need not be called before us. */ - if (constraint_ns < 0) + if (constraint_ns < 0) { constraint_ns = dev_pm_qos_read_value(pdd->dev); - - if (constraint_ns == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT) + constraint_ns *= NSEC_PER_USEC; + } + if (constraint_ns == 0) continue; - constraint_ns *= NSEC_PER_USEC; - /* * constraint_ns cannot be negative here, because the device has * been suspended. diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c index 7d29286d9313..277d43a83f53 100644 --- a/drivers/base/power/qos.c +++ b/drivers/base/power/qos.c @@ -189,7 +189,7 @@ static int dev_pm_qos_constraints_allocate(struct device *dev) plist_head_init(&c->list); c->target_value = PM_QOS_RESUME_LATENCY_DEFAULT_VALUE; c->default_value = PM_QOS_RESUME_LATENCY_DEFAULT_VALUE; - c->no_constraint_value = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; + c->no_constraint_value = PM_QOS_RESUME_LATENCY_DEFAULT_VALUE; c->type = PM_QOS_MIN; c->notifiers = n; diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 13e015905543..7bcf80fa9ada 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -253,7 +253,7 @@ static int rpm_check_suspend_allowed(struct device *dev) || (dev->power.request_pending && dev->power.request == RPM_REQ_RESUME)) retval = -EAGAIN; - else if (__dev_pm_qos_read_value(dev) == 0) + else if (__dev_pm_qos_read_value(dev) < 0) retval = -EPERM; else if (dev->power.runtime_status == RPM_SUSPENDED) retval = 1; diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c index 632077f05c57..156ab57bca77 100644 --- a/drivers/base/power/sysfs.c +++ b/drivers/base/power/sysfs.c @@ -218,14 +218,7 @@ static ssize_t pm_qos_resume_latency_show(struct device *dev, struct device_attribute *attr, char *buf) { - s32 value = dev_pm_qos_requested_resume_latency(dev); - - if (value == 0) - return sprintf(buf, "n/a\n"); - else if (value == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT) - value = 0; - - return sprintf(buf, "%d\n", value); + return sprintf(buf, "%d\n", dev_pm_qos_requested_resume_latency(dev)); } static ssize_t pm_qos_resume_latency_store(struct device *dev, @@ -235,21 +228,11 @@ static ssize_t pm_qos_resume_latency_store(struct device *dev, s32 value; int ret; - if (!kstrtos32(buf, 0, &value)) { - /* - * Prevent users from writing negative or "no constraint" values - * directly. - */ - if (value < 0 || value == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT) - return -EINVAL; + if (kstrtos32(buf, 0, &value)) + return -EINVAL; - if (value == 0) - value = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; - } else if (!strcmp(buf, "n/a") || !strcmp(buf, "n/a\n")) { - value = 0; - } else { + if (value < 0) return -EINVAL; - } ret = dev_pm_qos_update_request(dev->power.qos->resume_latency_req, value); diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index aa390404e85f..48eaf2879228 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -298,8 +298,8 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev) data->needs_update = 0; } - if (resume_latency < latency_req && - resume_latency != PM_QOS_RESUME_LATENCY_NO_CONSTRAINT) + /* resume_latency is 0 means no restriction */ + if (resume_latency && resume_latency < latency_req) latency_req = resume_latency; /* Special case when user has set very strict latency requirement */ diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h index 6737a8c9e8c6..032b55909145 100644 --- a/include/linux/pm_qos.h +++ b/include/linux/pm_qos.h @@ -27,17 +27,16 @@ enum pm_qos_flags_status { PM_QOS_FLAGS_ALL, }; -#define PM_QOS_DEFAULT_VALUE (-1) -#define PM_QOS_LATENCY_ANY S32_MAX +#define PM_QOS_DEFAULT_VALUE -1 #define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC) #define PM_QOS_NETWORK_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC) #define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE 0 #define PM_QOS_MEMORY_BANDWIDTH_DEFAULT_VALUE 0 #define PM_QOS_RESUME_LATENCY_DEFAULT_VALUE 0 -#define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT PM_QOS_LATENCY_ANY #define PM_QOS_LATENCY_TOLERANCE_DEFAULT_VALUE 0 #define PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT (-1) +#define PM_QOS_LATENCY_ANY ((s32)(~(__u32)0 >> 1)) #define PM_QOS_FLAG_NO_POWER_OFF (1 << 0) #define PM_QOS_FLAG_REMOTE_WAKEUP (1 << 1) -- cgit v1.2.3 From d65b34135ff86e8e04144ccdfcc2824127e0a7e8 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Tue, 29 Aug 2017 06:17:06 -0400 Subject: media: v4l: async: Add V4L2 async documentation to the documentation build MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The V4L2 async wasn't part of the documentation build. Fix this. Signed-off-by: Sakari Ailus Reviewed-by: Niklas Söderlund Acked-by: Hans Verkuil Reviewed-by: Laurent Pinchart Reviewed-by: Sebastian Reichel Signed-off-by: Mauro Carvalho Chehab --- Documentation/media/kapi/v4l2-async.rst | 3 +++ Documentation/media/kapi/v4l2-core.rst | 1 + 2 files changed, 4 insertions(+) create mode 100644 Documentation/media/kapi/v4l2-async.rst (limited to 'Documentation') diff --git a/Documentation/media/kapi/v4l2-async.rst b/Documentation/media/kapi/v4l2-async.rst new file mode 100644 index 000000000000..523ff9eb09a0 --- /dev/null +++ b/Documentation/media/kapi/v4l2-async.rst @@ -0,0 +1,3 @@ +V4L2 async kAPI +^^^^^^^^^^^^^^^ +.. kernel-doc:: include/media/v4l2-async.h diff --git a/Documentation/media/kapi/v4l2-core.rst b/Documentation/media/kapi/v4l2-core.rst index c7434f38fd9c..5cf292037a48 100644 --- a/Documentation/media/kapi/v4l2-core.rst +++ b/Documentation/media/kapi/v4l2-core.rst @@ -19,6 +19,7 @@ Video4Linux devices v4l2-mc v4l2-mediabus v4l2-mem2mem + v4l2-async v4l2-fwnode v4l2-rect v4l2-tuner -- cgit v1.2.3 From f4f864c1219cd88c01fd6359ffc870da9b4acf92 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Sun, 29 Oct 2017 06:30:14 -0400 Subject: fscrypt: add a documentation file for filesystem-level encryption Perhaps long overdue, add a documentation file for filesystem-level encryption, a.k.a. fscrypt or fs/crypto/, to the Documentation directory. The new file is based loosely on the latest version of the "EXT4 Encryption Design Document (public version)" Google Doc, but with many improvements made, including: - Reflect the reality that it is not specific to ext4 anymore. - More thoroughly document the design and user-visible API/behavior. - Replace outdated information, such as the outdated explanation of how encrypted filenames are hashed for indexed directories and how encrypted filenames are presented to userspace without the key. (This was changed just before release.) For now the focus is on the design and user-visible API/behavior, not on how to add encryption support to a filesystem --- since the internal API is still pretty messy and any standalone documentation for it would become outdated as things get refactored over time. Reviewed-by: Michael Halcrow Signed-off-by: Eric Biggers Signed-off-by: Theodore Ts'o --- Documentation/filesystems/fscrypt.rst | 610 ++++++++++++++++++++++++++++++++++ Documentation/filesystems/index.rst | 11 + MAINTAINERS | 1 + 3 files changed, 622 insertions(+) create mode 100644 Documentation/filesystems/fscrypt.rst (limited to 'Documentation') diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst new file mode 100644 index 000000000000..776ddc655f79 --- /dev/null +++ b/Documentation/filesystems/fscrypt.rst @@ -0,0 +1,610 @@ +===================================== +Filesystem-level encryption (fscrypt) +===================================== + +Introduction +============ + +fscrypt is a library which filesystems can hook into to support +transparent encryption of files and directories. + +Note: "fscrypt" in this document refers to the kernel-level portion, +implemented in ``fs/crypto/``, as opposed to the userspace tool +`fscrypt `_. This document only +covers the kernel-level portion. For command-line examples of how to +use encryption, see the documentation for the userspace tool `fscrypt +`_. Also, it is recommended to use +the fscrypt userspace tool, or other existing userspace tools such as +`fscryptctl `_ or `Android's key +management system +`_, over +using the kernel's API directly. Using existing tools reduces the +chance of introducing your own security bugs. (Nevertheless, for +completeness this documentation covers the kernel's API anyway.) + +Unlike dm-crypt, fscrypt operates at the filesystem level rather than +at the block device level. This allows it to encrypt different files +with different keys and to have unencrypted files on the same +filesystem. This is useful for multi-user systems where each user's +data-at-rest needs to be cryptographically isolated from the others. +However, except for filenames, fscrypt does not encrypt filesystem +metadata. + +Unlike eCryptfs, which is a stacked filesystem, fscrypt is integrated +directly into supported filesystems --- currently ext4, F2FS, and +UBIFS. This allows encrypted files to be read and written without +caching both the decrypted and encrypted pages in the pagecache, +thereby nearly halving the memory used and bringing it in line with +unencrypted files. Similarly, half as many dentries and inodes are +needed. eCryptfs also limits encrypted filenames to 143 bytes, +causing application compatibility issues; fscrypt allows the full 255 +bytes (NAME_MAX). Finally, unlike eCryptfs, the fscrypt API can be +used by unprivileged users, with no need to mount anything. + +fscrypt does not support encrypting files in-place. Instead, it +supports marking an empty directory as encrypted. Then, after +userspace provides the key, all regular files, directories, and +symbolic links created in that directory tree are transparently +encrypted. + +Threat model +============ + +Offline attacks +--------------- + +Provided that userspace chooses a strong encryption key, fscrypt +protects the confidentiality of file contents and filenames in the +event of a single point-in-time permanent offline compromise of the +block device content. fscrypt does not protect the confidentiality of +non-filename metadata, e.g. file sizes, file permissions, file +timestamps, and extended attributes. Also, the existence and location +of holes (unallocated blocks which logically contain all zeroes) in +files is not protected. + +fscrypt is not guaranteed to protect confidentiality or authenticity +if an attacker is able to manipulate the filesystem offline prior to +an authorized user later accessing the filesystem. + +Online attacks +-------------- + +fscrypt (and storage encryption in general) can only provide limited +protection, if any at all, against online attacks. In detail: + +fscrypt is only resistant to side-channel attacks, such as timing or +electromagnetic attacks, to the extent that the underlying Linux +Cryptographic API algorithms are. If a vulnerable algorithm is used, +such as a table-based implementation of AES, it may be possible for an +attacker to mount a side channel attack against the online system. +Side channel attacks may also be mounted against applications +consuming decrypted data. + +After an encryption key has been provided, fscrypt is not designed to +hide the plaintext file contents or filenames from other users on the +same system, regardless of the visibility of the keyring key. +Instead, existing access control mechanisms such as file mode bits, +POSIX ACLs, LSMs, or mount namespaces should be used for this purpose. +Also note that as long as the encryption keys are *anywhere* in +memory, an online attacker can necessarily compromise them by mounting +a physical attack or by exploiting any kernel security vulnerability +which provides an arbitrary memory read primitive. + +While it is ostensibly possible to "evict" keys from the system, +recently accessed encrypted files will remain accessible at least +until the filesystem is unmounted or the VFS caches are dropped, e.g. +using ``echo 2 > /proc/sys/vm/drop_caches``. Even after that, if the +RAM is compromised before being powered off, it will likely still be +possible to recover portions of the plaintext file contents, if not +some of the encryption keys as well. (Since Linux v4.12, all +in-kernel keys related to fscrypt are sanitized before being freed. +However, userspace would need to do its part as well.) + +Currently, fscrypt does not prevent a user from maliciously providing +an incorrect key for another user's existing encrypted files. A +protection against this is planned. + +Key hierarchy +============= + +Master Keys +----------- + +Each encrypted directory tree is protected by a *master key*. Master +keys can be up to 64 bytes long, and must be at least as long as the +greater of the key length needed by the contents and filenames +encryption modes being used. For example, if AES-256-XTS is used for +contents encryption, the master key must be 64 bytes (512 bits). Note +that the XTS mode is defined to require a key twice as long as that +required by the underlying block cipher. + +To "unlock" an encrypted directory tree, userspace must provide the +appropriate master key. There can be any number of master keys, each +of which protects any number of directory trees on any number of +filesystems. + +Userspace should generate master keys either using a cryptographically +secure random number generator, or by using a KDF (Key Derivation +Function). Note that whenever a KDF is used to "stretch" a +lower-entropy secret such as a passphrase, it is critical that a KDF +designed for this purpose be used, such as scrypt, PBKDF2, or Argon2. + +Per-file keys +------------- + +Master keys are not used to encrypt file contents or names directly. +Instead, a unique key is derived for each encrypted file, including +each regular file, directory, and symbolic link. This has several +advantages: + +- In cryptosystems, the same key material should never be used for + different purposes. Using the master key as both an XTS key for + contents encryption and as a CTS-CBC key for filenames encryption + would violate this rule. +- Per-file keys simplify the choice of IVs (Initialization Vectors) + for contents encryption. Without per-file keys, to ensure IV + uniqueness both the inode and logical block number would need to be + encoded in the IVs. This would make it impossible to renumber + inodes, which e.g. ``resize2fs`` can do when resizing an ext4 + filesystem. With per-file keys, it is sufficient to encode just the + logical block number in the IVs. +- Per-file keys strengthen the encryption of filenames, where IVs are + reused out of necessity. With a unique key per directory, IV reuse + is limited to within a single directory. +- Per-file keys allow individual files to be securely erased simply by + securely erasing their keys. (Not yet implemented.) + +A KDF (Key Derivation Function) is used to derive per-file keys from +the master key. This is done instead of wrapping a randomly-generated +key for each file because it reduces the size of the encryption xattr, +which for some filesystems makes the xattr more likely to fit in-line +in the filesystem's inode table. With a KDF, only a 16-byte nonce is +required --- long enough to make key reuse extremely unlikely. A +wrapped key, on the other hand, would need to be up to 64 bytes --- +the length of an AES-256-XTS key. Furthermore, currently there is no +requirement to support unlocking a file with multiple alternative +master keys or to support rotating master keys. Instead, the master +keys may be wrapped in userspace, e.g. as done by the `fscrypt +`_ tool. + +The current KDF encrypts the master key using the 16-byte nonce as an +AES-128-ECB key. The output is used as the derived key. If the +output is longer than needed, then it is truncated to the needed +length. Truncation is the norm for directories and symlinks, since +those use the CTS-CBC encryption mode which requires a key half as +long as that required by the XTS encryption mode. + +Note: this KDF meets the primary security requirement, which is to +produce unique derived keys that preserve the entropy of the master +key, assuming that the master key is already a good pseudorandom key. +However, it is nonstandard and has some problems such as being +reversible, so it is generally considered to be a mistake! It may be +replaced with HKDF or another more standard KDF in the future. + +Encryption modes and usage +========================== + +fscrypt allows one encryption mode to be specified for file contents +and one encryption mode to be specified for filenames. Different +directory trees are permitted to use different encryption modes. +Currently, the following pairs of encryption modes are supported: + +- AES-256-XTS for contents and AES-256-CTS-CBC for filenames +- AES-128-CBC for contents and AES-128-CTS-CBC for filenames + +It is strongly recommended to use AES-256-XTS for contents encryption. +AES-128-CBC was added only for low-powered embedded devices with +crypto accelerators such as CAAM or CESA that do not support XTS. + +New encryption modes can be added relatively easily, without changes +to individual filesystems. However, authenticated encryption (AE) +modes are not currently supported because of the difficulty of dealing +with ciphertext expansion. + +For file contents, each filesystem block is encrypted independently. +Currently, only the case where the filesystem block size is equal to +the system's page size (usually 4096 bytes) is supported. With the +XTS mode of operation (recommended), the logical block number within +the file is used as the IV. With the CBC mode of operation (not +recommended), ESSIV is used; specifically, the IV for CBC is the +logical block number encrypted with AES-256, where the AES-256 key is +the SHA-256 hash of the inode's data encryption key. + +For filenames, the full filename is encrypted at once. Because of the +requirements to retain support for efficient directory lookups and +filenames of up to 255 bytes, a constant initialization vector (IV) is +used. However, each encrypted directory uses a unique key, which +limits IV reuse to within a single directory. Note that IV reuse in +the context of CTS-CBC encryption means that when the original +filenames share a common prefix at least as long as the cipher block +size (16 bytes for AES), the corresponding encrypted filenames will +also share a common prefix. This is undesirable; it may be fixed in +the future by switching to an encryption mode that is a strong +pseudorandom permutation on arbitrary-length messages, e.g. the HEH +(Hash-Encrypt-Hash) mode. + +Since filenames are encrypted with the CTS-CBC mode of operation, the +plaintext and ciphertext filenames need not be multiples of the AES +block size, i.e. 16 bytes. However, the minimum size that can be +encrypted is 16 bytes, so shorter filenames are NUL-padded to 16 bytes +before being encrypted. In addition, to reduce leakage of filename +lengths via their ciphertexts, all filenames are NUL-padded to the +next 4, 8, 16, or 32-byte boundary (configurable). 32 is recommended +since this provides the best confidentiality, at the cost of making +directory entries consume slightly more space. Note that since NUL +(``\0``) is not otherwise a valid character in filenames, the padding +will never produce duplicate plaintexts. + +Symbolic link targets are considered a type of filename and are +encrypted in the same way as filenames in directory entries. Each +symlink also uses a unique key; hence, the hardcoded IV is not a +problem for symlinks. + +User API +======== + +Setting an encryption policy +---------------------------- + +The FS_IOC_SET_ENCRYPTION_POLICY ioctl sets an encryption policy on an +empty directory or verifies that a directory or regular file already +has the specified encryption policy. It takes in a pointer to a +:c:type:`struct fscrypt_policy`, defined as follows:: + + #define FS_KEY_DESCRIPTOR_SIZE 8 + + struct fscrypt_policy { + __u8 version; + __u8 contents_encryption_mode; + __u8 filenames_encryption_mode; + __u8 flags; + __u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE]; + }; + +This structure must be initialized as follows: + +- ``version`` must be 0. + +- ``contents_encryption_mode`` and ``filenames_encryption_mode`` must + be set to constants from ```` which identify the + encryption modes to use. If unsure, use + FS_ENCRYPTION_MODE_AES_256_XTS (1) for ``contents_encryption_mode`` + and FS_ENCRYPTION_MODE_AES_256_CTS (4) for + ``filenames_encryption_mode``. + +- ``flags`` must be set to a value from ```` which + identifies the amount of NUL-padding to use when encrypting + filenames. If unsure, use FS_POLICY_FLAGS_PAD_32 (0x3). + +- ``master_key_descriptor`` specifies how to find the master key in + the keyring; see `Adding keys`_. It is up to userspace to choose a + unique ``master_key_descriptor`` for each master key. The e4crypt + and fscrypt tools use the first 8 bytes of + ``SHA-512(SHA-512(master_key))``, but this particular scheme is not + required. Also, the master key need not be in the keyring yet when + FS_IOC_SET_ENCRYPTION_POLICY is executed. However, it must be added + before any files can be created in the encrypted directory. + +If the file is not yet encrypted, then FS_IOC_SET_ENCRYPTION_POLICY +verifies that the file is an empty directory. If so, the specified +encryption policy is assigned to the directory, turning it into an +encrypted directory. After that, and after providing the +corresponding master key as described in `Adding keys`_, all regular +files, directories (recursively), and symlinks created in the +directory will be encrypted, inheriting the same encryption policy. +The filenames in the directory's entries will be encrypted as well. + +Alternatively, if the file is already encrypted, then +FS_IOC_SET_ENCRYPTION_POLICY validates that the specified encryption +policy exactly matches the actual one. If they match, then the ioctl +returns 0. Otherwise, it fails with EEXIST. This works on both +regular files and directories, including nonempty directories. + +Note that the ext4 filesystem does not allow the root directory to be +encrypted, even if it is empty. Users who want to encrypt an entire +filesystem with one key should consider using dm-crypt instead. + +FS_IOC_SET_ENCRYPTION_POLICY can fail with the following errors: + +- ``EACCES``: the file is not owned by the process's uid, nor does the + process have the CAP_FOWNER capability in a namespace with the file + owner's uid mapped +- ``EEXIST``: the file is already encrypted with an encryption policy + different from the one specified +- ``EINVAL``: an invalid encryption policy was specified (invalid + version, mode(s), or flags) +- ``ENOTDIR``: the file is unencrypted and is a regular file, not a + directory +- ``ENOTEMPTY``: the file is unencrypted and is a nonempty directory +- ``ENOTTY``: this type of filesystem does not implement encryption +- ``EOPNOTSUPP``: the kernel was not configured with encryption + support for this filesystem, or the filesystem superblock has not + had encryption enabled on it. (For example, to use encryption on an + ext4 filesystem, CONFIG_EXT4_ENCRYPTION must be enabled in the + kernel config, and the superblock must have had the "encrypt" + feature flag enabled using ``tune2fs -O encrypt`` or ``mkfs.ext4 -O + encrypt``.) +- ``EPERM``: this directory may not be encrypted, e.g. because it is + the root directory of an ext4 filesystem +- ``EROFS``: the filesystem is readonly + +Getting an encryption policy +---------------------------- + +The FS_IOC_GET_ENCRYPTION_POLICY ioctl retrieves the :c:type:`struct +fscrypt_policy`, if any, for a directory or regular file. See above +for the struct definition. No additional permissions are required +beyond the ability to open the file. + +FS_IOC_GET_ENCRYPTION_POLICY can fail with the following errors: + +- ``EINVAL``: the file is encrypted, but it uses an unrecognized + encryption context format +- ``ENODATA``: the file is not encrypted +- ``ENOTTY``: this type of filesystem does not implement encryption +- ``EOPNOTSUPP``: the kernel was not configured with encryption + support for this filesystem + +Note: if you only need to know whether a file is encrypted or not, on +most filesystems it is also possible to use the FS_IOC_GETFLAGS ioctl +and check for FS_ENCRYPT_FL, or to use the statx() system call and +check for STATX_ATTR_ENCRYPTED in stx_attributes. + +Getting the per-filesystem salt +------------------------------- + +Some filesystems, such as ext4 and F2FS, also support the deprecated +ioctl FS_IOC_GET_ENCRYPTION_PWSALT. This ioctl retrieves a randomly +generated 16-byte value stored in the filesystem superblock. This +value is intended to used as a salt when deriving an encryption key +from a passphrase or other low-entropy user credential. + +FS_IOC_GET_ENCRYPTION_PWSALT is deprecated. Instead, prefer to +generate and manage any needed salt(s) in userspace. + +Adding keys +----------- + +To provide a master key, userspace must add it to an appropriate +keyring using the add_key() system call (see: +``Documentation/security/keys/core.rst``). The key type must be +"logon"; keys of this type are kept in kernel memory and cannot be +read back by userspace. The key description must be "fscrypt:" +followed by the 16-character lower case hex representation of the +``master_key_descriptor`` that was set in the encryption policy. The +key payload must conform to the following structure:: + + #define FS_MAX_KEY_SIZE 64 + + struct fscrypt_key { + u32 mode; + u8 raw[FS_MAX_KEY_SIZE]; + u32 size; + }; + +``mode`` is ignored; just set it to 0. The actual key is provided in +``raw`` with ``size`` indicating its size in bytes. That is, the +bytes ``raw[0..size-1]`` (inclusive) are the actual key. + +The key description prefix "fscrypt:" may alternatively be replaced +with a filesystem-specific prefix such as "ext4:". However, the +filesystem-specific prefixes are deprecated and should not be used in +new programs. + +There are several different types of keyrings in which encryption keys +may be placed, such as a session keyring, a user session keyring, or a +user keyring. Each key must be placed in a keyring that is "attached" +to all processes that might need to access files encrypted with it, in +the sense that request_key() will find the key. Generally, if only +processes belonging to a specific user need to access a given +encrypted directory and no session keyring has been installed, then +that directory's key should be placed in that user's user session +keyring or user keyring. Otherwise, a session keyring should be +installed if needed, and the key should be linked into that session +keyring, or in a keyring linked into that session keyring. + +Note: introducing the complex visibility semantics of keyrings here +was arguably a mistake --- especially given that by design, after any +process successfully opens an encrypted file (thereby setting up the +per-file key), possessing the keyring key is not actually required for +any process to read/write the file until its in-memory inode is +evicted. In the future there probably should be a way to provide keys +directly to the filesystem instead, which would make the intended +semantics clearer. + +Access semantics +================ + +With the key +------------ + +With the encryption key, encrypted regular files, directories, and +symlinks behave very similarly to their unencrypted counterparts --- +after all, the encryption is intended to be transparent. However, +astute users may notice some differences in behavior: + +- Unencrypted files, or files encrypted with a different encryption + policy (i.e. different key, modes, or flags), cannot be renamed or + linked into an encrypted directory; see `Encryption policy + enforcement`_. Attempts to do so will fail with EPERM. However, + encrypted files can be renamed within an encrypted directory, or + into an unencrypted directory. + +- Direct I/O is not supported on encrypted files. Attempts to use + direct I/O on such files will fall back to buffered I/O. + +- The fallocate operations FALLOC_FL_COLLAPSE_RANGE, + FALLOC_FL_INSERT_RANGE, and FALLOC_FL_ZERO_RANGE are not supported + on encrypted files and will fail with EOPNOTSUPP. + +- Online defragmentation of encrypted files is not supported. The + EXT4_IOC_MOVE_EXT and F2FS_IOC_MOVE_RANGE ioctls will fail with + EOPNOTSUPP. + +- The ext4 filesystem does not support data journaling with encrypted + regular files. It will fall back to ordered data mode instead. + +- DAX (Direct Access) is not supported on encrypted files. + +- The st_size of an encrypted symlink will not necessarily give the + length of the symlink target as required by POSIX. It will actually + give the length of the ciphertext, which may be slightly longer than + the plaintext due to the NUL-padding. + +Note that mmap *is* supported. This is possible because the pagecache +for an encrypted file contains the plaintext, not the ciphertext. + +Without the key +--------------- + +Some filesystem operations may be performed on encrypted regular +files, directories, and symlinks even before their encryption key has +been provided: + +- File metadata may be read, e.g. using stat(). + +- Directories may be listed, in which case the filenames will be + listed in an encoded form derived from their ciphertext. The + current encoding algorithm is described in `Filename hashing and + encoding`_. The algorithm is subject to change, but it is + guaranteed that the presented filenames will be no longer than + NAME_MAX bytes, will not contain the ``/`` or ``\0`` characters, and + will uniquely identify directory entries. + + The ``.`` and ``..`` directory entries are special. They are always + present and are not encrypted or encoded. + +- Files may be deleted. That is, nondirectory files may be deleted + with unlink() as usual, and empty directories may be deleted with + rmdir() as usual. Therefore, ``rm`` and ``rm -r`` will work as + expected. + +- Symlink targets may be read and followed, but they will be presented + in encrypted form, similar to filenames in directories. Hence, they + are unlikely to point to anywhere useful. + +Without the key, regular files cannot be opened or truncated. +Attempts to do so will fail with ENOKEY. This implies that any +regular file operations that require a file descriptor, such as +read(), write(), mmap(), fallocate(), and ioctl(), are also forbidden. + +Also without the key, files of any type (including directories) cannot +be created or linked into an encrypted directory, nor can a name in an +encrypted directory be the source or target of a rename, nor can an +O_TMPFILE temporary file be created in an encrypted directory. All +such operations will fail with ENOKEY. + +It is not currently possible to backup and restore encrypted files +without the encryption key. This would require special APIs which +have not yet been implemented. + +Encryption policy enforcement +============================= + +After an encryption policy has been set on a directory, all regular +files, directories, and symbolic links created in that directory +(recursively) will inherit that encryption policy. Special files --- +that is, named pipes, device nodes, and UNIX domain sockets --- will +not be encrypted. + +Except for those special files, it is forbidden to have unencrypted +files, or files encrypted with a different encryption policy, in an +encrypted directory tree. Attempts to link or rename such a file into +an encrypted directory will fail with EPERM. This is also enforced +during ->lookup() to provide limited protection against offline +attacks that try to disable or downgrade encryption in known locations +where applications may later write sensitive data. It is recommended +that systems implementing a form of "verified boot" take advantage of +this by validating all top-level encryption policies prior to access. + +Implementation details +====================== + +Encryption context +------------------ + +An encryption policy is represented on-disk by a :c:type:`struct +fscrypt_context`. It is up to individual filesystems to decide where +to store it, but normally it would be stored in a hidden extended +attribute. It should *not* be exposed by the xattr-related system +calls such as getxattr() and setxattr() because of the special +semantics of the encryption xattr. (In particular, there would be +much confusion if an encryption policy were to be added to or removed +from anything other than an empty directory.) The struct is defined +as follows:: + + #define FS_KEY_DESCRIPTOR_SIZE 8 + #define FS_KEY_DERIVATION_NONCE_SIZE 16 + + struct fscrypt_context { + u8 format; + u8 contents_encryption_mode; + u8 filenames_encryption_mode; + u8 flags; + u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE]; + u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE]; + }; + +Note that :c:type:`struct fscrypt_context` contains the same +information as :c:type:`struct fscrypt_policy` (see `Setting an +encryption policy`_), except that :c:type:`struct fscrypt_context` +also contains a nonce. The nonce is randomly generated by the kernel +and is used to derive the inode's encryption key as described in +`Per-file keys`_. + +Data path changes +----------------- + +For the read path (->readpage()) of regular files, filesystems can +read the ciphertext into the page cache and decrypt it in-place. The +page lock must be held until decryption has finished, to prevent the +page from becoming visible to userspace prematurely. + +For the write path (->writepage()) of regular files, filesystems +cannot encrypt data in-place in the page cache, since the cached +plaintext must be preserved. Instead, filesystems must encrypt into a +temporary buffer or "bounce page", then write out the temporary +buffer. Some filesystems, such as UBIFS, already use temporary +buffers regardless of encryption. Other filesystems, such as ext4 and +F2FS, have to allocate bounce pages specially for encryption. + +Filename hashing and encoding +----------------------------- + +Modern filesystems accelerate directory lookups by using indexed +directories. An indexed directory is organized as a tree keyed by +filename hashes. When a ->lookup() is requested, the filesystem +normally hashes the filename being looked up so that it can quickly +find the corresponding directory entry, if any. + +With encryption, lookups must be supported and efficient both with and +without the encryption key. Clearly, it would not work to hash the +plaintext filenames, since the plaintext filenames are unavailable +without the key. (Hashing the plaintext filenames would also make it +impossible for the filesystem's fsck tool to optimize encrypted +directories.) Instead, filesystems hash the ciphertext filenames, +i.e. the bytes actually stored on-disk in the directory entries. When +asked to do a ->lookup() with the key, the filesystem just encrypts +the user-supplied name to get the ciphertext. + +Lookups without the key are more complicated. The raw ciphertext may +contain the ``\0`` and ``/`` characters, which are illegal in +filenames. Therefore, readdir() must base64-encode the ciphertext for +presentation. For most filenames, this works fine; on ->lookup(), the +filesystem just base64-decodes the user-supplied name to get back to +the raw ciphertext. + +However, for very long filenames, base64 encoding would cause the +filename length to exceed NAME_MAX. To prevent this, readdir() +actually presents long filenames in an abbreviated form which encodes +a strong "hash" of the ciphertext filename, along with the optional +filesystem-specific hash(es) needed for directory lookups. This +allows the filesystem to still, with a high degree of confidence, map +the filename given in ->lookup() back to a particular directory entry +that was previously listed by readdir(). See :c:type:`struct +fscrypt_digested_name` in the source for more details. + +Note that the precise way that filenames are presented to userspace +without the key is subject to change in the future. It is only meant +as a way to temporarily present valid filenames so that commands like +``rm -r`` work as expected on encrypted directories. diff --git a/Documentation/filesystems/index.rst b/Documentation/filesystems/index.rst index 256e10eedba4..53b89d0edc15 100644 --- a/Documentation/filesystems/index.rst +++ b/Documentation/filesystems/index.rst @@ -315,3 +315,14 @@ exported for use by modules. :internal: .. kernel-doc:: fs/pipe.c + +Encryption API +============== + +A library which filesystems can hook into to support transparent +encryption of files and directories. + +.. toctree:: + :maxdepth: 2 + + fscrypt diff --git a/MAINTAINERS b/MAINTAINERS index 65b0c88d5ee0..d03b9ae19050 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5648,6 +5648,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt.git S: Supported F: fs/crypto/ F: include/linux/fscrypt*.h +F: Documentation/filesystems/fscrypt.rst FUJITSU FR-V (FRV) PORT S: Orphan -- cgit v1.2.3 From 26baf6dd63ddd2808561926cae6ecf16f56de38c Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Fri, 3 Mar 2017 13:14:02 -0500 Subject: media: dt: bindings: Add a binding for flash LED devices associated to a sensor Camera flash drivers (and LEDs) are separate from the sensor devices in DT. In order to make an association between the two, provide the association information to the software. Signed-off-by: Sakari Ailus Cc: devicetree@vger.kernel.org Acked-by: Hans Verkuil Acked-by: Pavel Machek Acked-by: Rob Herring Reviewed-by: Sebastian Reichel Signed-off-by: Mauro Carvalho Chehab --- Documentation/devicetree/bindings/media/video-interfaces.txt | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt index bd6474920510..dc66e3224692 100644 --- a/Documentation/devicetree/bindings/media/video-interfaces.txt +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt @@ -76,6 +76,14 @@ are required in a relevant parent node: identifier, should be 1. - #size-cells : should be zero. + +Optional properties +------------------- + +- flash-leds: An array of phandles, each referring to a flash LED, a sub-node + of the LED driver device node. + + Optional endpoint properties ---------------------------- -- cgit v1.2.3 From 95293f79d53995142ed1f66be70216a6cbfc36f4 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Fri, 3 Mar 2017 17:07:51 -0500 Subject: media: dt: bindings: Add lens-focus binding for image sensors The lens-focus property contains a phandle to the lens voice coil driver that is associated to the sensor; typically both are contained in the same camera module. Signed-off-by: Sakari Ailus Cc: devicetree@vger.kernel.org Acked-by: Pavel Machek Reviewed-by: Sebastian Reichel Acked-by: Rob Herring Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/devicetree/bindings/media/video-interfaces.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt index dc66e3224692..3994b0143dd1 100644 --- a/Documentation/devicetree/bindings/media/video-interfaces.txt +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt @@ -83,6 +83,8 @@ Optional properties - flash-leds: An array of phandles, each referring to a flash LED, a sub-node of the LED driver device node. +- lens-focus: A phandle to the node of the focus lens controller. + Optional endpoint properties ---------------------------- -- cgit v1.2.3 From e4219f9f9c98ae28874c2b7390a561a2a77e6f64 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Sun, 3 Sep 2017 15:41:53 -0400 Subject: media: dt: bindings: smiapp: Document lens-focus and flash-leds properties Document optional lens-focus and flash-leds properties for the smiapp driver. Signed-off-by: Sakari Ailus Acked-by: Hans Verkuil Acked-by: Pavel Machek Acked-by: Rob Herring Reviewed-by: Sebastian Reichel Signed-off-by: Mauro Carvalho Chehab --- Documentation/devicetree/bindings/media/i2c/nokia,smia.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/media/i2c/nokia,smia.txt b/Documentation/devicetree/bindings/media/i2c/nokia,smia.txt index 855e1faf73e2..33f10a94c381 100644 --- a/Documentation/devicetree/bindings/media/i2c/nokia,smia.txt +++ b/Documentation/devicetree/bindings/media/i2c/nokia,smia.txt @@ -27,6 +27,8 @@ Optional properties - nokia,nvm-size: The size of the NVM, in bytes. If the size is not given, the NVM contents will not be read. - reset-gpios: XSHUTDOWN GPIO +- flash-leds: See ../video-interfaces.txt +- lens-focus: See ../video-interfaces.txt Endpoint node mandatory properties -- cgit v1.2.3 From 1027d759c9517a255f663d4365d98d78d8680b20 Mon Sep 17 00:00:00 2001 From: Rocky Hao Date: Thu, 24 Aug 2017 18:27:51 +0800 Subject: dt-bindings: rockchip-thermal: Support the RV1108 SoC compatible Add a new compatible for thermal founding on RV1108 SoCs. Acked-by: Rob Herring Signed-off-by: Rocky Hao Signed-off-by: Eduardo Valentin --- Documentation/devicetree/bindings/thermal/rockchip-thermal.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt index e3a6234fb1ac..43d744e5305e 100644 --- a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt +++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt @@ -2,6 +2,7 @@ Required properties: - compatible : should be "rockchip,-tsadc" + "rockchip,rv1108-tsadc": found on RV1108 SoCs "rockchip,rk3228-tsadc": found on RK3228 SoCs "rockchip,rk3288-tsadc": found on RK3288 SoCs "rockchip,rk3328-tsadc": found on RK3328 SoCs -- cgit v1.2.3 From b590c51c9b956f465acc73a2864d3a1444c76c3b Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 26 Sep 2017 14:27:58 -0700 Subject: Documentation: devicetree: add binding for Broadcom STB AVS TMON Add binding for Broadcom STB thermal. Signed-off-by: Brian Norris Acked-by: Rob Herring Signed-off-by: Markus Mayer Signed-off-by: Eduardo Valentin --- .../devicetree/bindings/thermal/brcm,avs-tmon.txt | 20 ++++++++++++++++++++ MAINTAINERS | 8 ++++++++ 2 files changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/brcm,avs-tmon.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/thermal/brcm,avs-tmon.txt b/Documentation/devicetree/bindings/thermal/brcm,avs-tmon.txt new file mode 100644 index 000000000000..9d43553a8d39 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/brcm,avs-tmon.txt @@ -0,0 +1,20 @@ +* Broadcom STB thermal management + +Thermal management core, provided by the AVS TMON hardware block. + +Required properties: +- compatible: must be "brcm,avs-tmon" and/or "brcm,avs-tmon-bcm7445" +- reg: address range for the AVS TMON registers +- interrupts: temperature monitor interrupt, for high/low threshold triggers +- interrupt-names: should be "tmon" +- interrupt-parent: the parent interrupt controller + +Example: + + thermal@f04d1500 { + compatible = "brcm,avs-tmon-bcm7445", "brcm,avs-tmon"; + reg = <0xf04d1500 0x28>; + interrupts = <0x6>; + interrupt-names = "tmon"; + interrupt-parent = <&avs_host_l2_intc>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 2281af4b41b6..46c592bc402f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2955,6 +2955,14 @@ S: Maintained F: Documentation/devicetree/bindings/cpufreq/brcm,stb-avs-cpu-freq.txt F: drivers/cpufreq/brcmstb* +BROADCOM STB AVS TMON DRIVER +M: Markus Mayer +M: bcm-kernel-feedback-list@broadcom.com +L: linux-pm@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/thermal/brcm,avs-tmon.txt +F: drivers/thermal/broadcom/brcmstb* + BROADCOM STB NAND FLASH DRIVER M: Brian Norris M: Kamal Dasu -- cgit v1.2.3 From 9f17ceaa01133e9a67fd796617446e9499570e3d Mon Sep 17 00:00:00 2001 From: Baolin Wang Date: Wed, 1 Nov 2017 10:32:07 +0800 Subject: dt-bindings: mfd: Add Spreadtrum SC27xx PMIC documentation This patch adds the binding documentation for Spreadtrum SC27xx series PMIC device. Signed-off-by: Baolin Wang Acked-by: Rob Herring Acked-by: Lee Jones Signed-off-by: Lee Jones --- .../devicetree/bindings/mfd/sprd,sc27xx-pmic.txt | 40 ++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/sprd,sc27xx-pmic.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mfd/sprd,sc27xx-pmic.txt b/Documentation/devicetree/bindings/mfd/sprd,sc27xx-pmic.txt new file mode 100644 index 000000000000..21b9a897fca5 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/sprd,sc27xx-pmic.txt @@ -0,0 +1,40 @@ +Spreadtrum SC27xx Power Management Integrated Circuit (PMIC) + +The Spreadtrum SC27xx series PMICs contain SC2720, SC2721, SC2723, SC2730 +and SC2731. The Spreadtrum PMIC belonging to SC27xx series integrates all +mobile handset power management, audio codec, battery management and user +interface support function in a single chip. It has 6 major functional +blocks: +- DCDCs to support CPU, memory. +- LDOs to support both internal and external requirement. +- Battery management system, such as charger, fuel gauge. +- Audio codec. +- User interface function, such as indicator, flash LED and so on. +- IC level interface, such as power on/off control, RTC and typec and so on. + +Required properties: +- compatible: Should be one of the following: + "sprd,sc2720" + "sprd,sc2721" + "sprd,sc2723" + "sprd,sc2730" + "sprd,sc2731" +- reg: The address of the device chip select, should be 0. +- spi-max-frequency: Typically set to 26000000. +- interrupts: The interrupt line the device is connected to. +- interrupt-controller: Marks the device node as an interrupt controller. +- #interrupt-cells: The number of cells to describe an PMIC IRQ, must be 2. +- #address-cells: Child device offset number of cells, must be 1. +- #size-cells: Child device size number of cells, must be 0. + +Example: +pmic@0 { + compatible = "sprd,sc2731"; + reg = <0>; + spi-max-frequency = <26000000>; + interrupts = ; + interrupt-controller; + #interrupt-cells = <2>; + #address-cells = <1>; + #size-cells = <0>; +}; -- cgit v1.2.3 From 2e39748a4231a893f057567e9b880ab34ea47aef Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Mon, 30 Oct 2017 19:39:56 -0700 Subject: bpf: document answers to common questions about BPF to address common misconceptions about what BPF is and what it's not add short BPF Q&A that clarifies core BPF design principles and answers some common questions. Signed-off-by: Alexei Starovoitov Acked-by: Daniel Borkmann Acked-by: John Fastabend Acked-by: Jakub Kicinski Signed-off-by: David S. Miller --- Documentation/bpf/bpf_design_QA.txt | 156 ++++++++++++++++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 157 insertions(+) create mode 100644 Documentation/bpf/bpf_design_QA.txt (limited to 'Documentation') diff --git a/Documentation/bpf/bpf_design_QA.txt b/Documentation/bpf/bpf_design_QA.txt new file mode 100644 index 000000000000..f3e458a0bb2f --- /dev/null +++ b/Documentation/bpf/bpf_design_QA.txt @@ -0,0 +1,156 @@ +BPF extensibility and applicability to networking, tracing, security +in the linux kernel and several user space implementations of BPF +virtual machine led to a number of misunderstanding on what BPF actually is. +This short QA is an attempt to address that and outline a direction +of where BPF is heading long term. + +Q: Is BPF a generic instruction set similar to x64 and arm64? +A: NO. + +Q: Is BPF a generic virtual machine ? +A: NO. + +BPF is generic instruction set _with_ C calling convention. + +Q: Why C calling convention was chosen? +A: Because BPF programs are designed to run in the linux kernel + which is written in C, hence BPF defines instruction set compatible + with two most used architectures x64 and arm64 (and takes into + consideration important quirks of other architectures) and + defines calling convention that is compatible with C calling + convention of the linux kernel on those architectures. + +Q: can multiple return values be supported in the future? +A: NO. BPF allows only register R0 to be used as return value. + +Q: can more than 5 function arguments be supported in the future? +A: NO. BPF calling convention only allows registers R1-R5 to be used + as arguments. BPF is not a standalone instruction set. + (unlike x64 ISA that allows msft, cdecl and other conventions) + +Q: can BPF programs access instruction pointer or return address? +A: NO. + +Q: can BPF programs access stack pointer ? +A: NO. Only frame pointer (register R10) is accessible. + From compiler point of view it's necessary to have stack pointer. + For example LLVM defines register R11 as stack pointer in its + BPF backend, but it makes sure that generated code never uses it. + +Q: Does C-calling convention diminishes possible use cases? +A: YES. BPF design forces addition of major functionality in the form + of kernel helper functions and kernel objects like BPF maps with + seamless interoperability between them. It lets kernel call into + BPF programs and programs call kernel helpers with zero overhead. + As all of them were native C code. That is particularly the case + for JITed BPF programs that are indistinguishable from + native kernel C code. + +Q: Does it mean that 'innovative' extensions to BPF code are disallowed? +A: Soft yes. At least for now until BPF core has support for + bpf-to-bpf calls, indirect calls, loops, global variables, + jump tables, read only sections and all other normal constructs + that C code can produce. + +Q: Can loops be supported in a safe way? +A: It's not clear yet. BPF developers are trying to find a way to + support bounded loops where the verifier can guarantee that + the program terminates in less than 4096 instructions. + +Q: How come LD_ABS and LD_IND instruction are present in BPF whereas + C code cannot express them and has to use builtin intrinsics? +A: This is artifact of compatibility with classic BPF. Modern + networking code in BPF performs better without them. + See 'direct packet access'. + +Q: It seems not all BPF instructions are one-to-one to native CPU. + For example why BPF_JNE and other compare and jumps are not cpu-like? +A: This was necessary to avoid introducing flags into ISA which are + impossible to make generic and efficient across CPU architectures. + +Q: why BPF_DIV instruction doesn't map to x64 div? +A: Because if we picked one-to-one relationship to x64 it would have made + it more complicated to support on arm64 and other archs. Also it + needs div-by-zero runtime check. + +Q: why there is no BPF_SDIV for signed divide operation? +A: Because it would be rarely used. llvm errors in such case and + prints a suggestion to use unsigned divide instead + +Q: Why BPF has implicit prologue and epilogue? +A: Because architectures like sparc have register windows and in general + there are enough subtle differences between architectures, so naive + store return address into stack won't work. Another reason is BPF has + to be safe from division by zero (and legacy exception path + of LD_ABS insn). Those instructions need to invoke epilogue and + return implicitly. + +Q: Why BPF_JLT and BPF_JLE instructions were not introduced in the beginning? +A: Because classic BPF didn't have them and BPF authors felt that compiler + workaround would be acceptable. Turned out that programs lose performance + due to lack of these compare instructions and they were added. + These two instructions is a perfect example what kind of new BPF + instructions are acceptable and can be added in the future. + These two already had equivalent instructions in native CPUs. + New instructions that don't have one-to-one mapping to HW instructions + will not be accepted. + +Q: BPF 32-bit subregisters have a requirement to zero upper 32-bits of BPF + registers which makes BPF inefficient virtual machine for 32-bit + CPU architectures and 32-bit HW accelerators. Can true 32-bit registers + be added to BPF in the future? +A: NO. The first thing to improve performance on 32-bit archs is to teach + LLVM to generate code that uses 32-bit subregisters. Then second step + is to teach verifier to mark operations where zero-ing upper bits + is unnecessary. Then JITs can take advantage of those markings and + drastically reduce size of generated code and improve performance. + +Q: Does BPF have a stable ABI? +A: YES. BPF instructions, arguments to BPF programs, set of helper + functions and their arguments, recognized return codes are all part + of ABI. However when tracing programs are using bpf_probe_read() helper + to walk kernel internal datastructures and compile with kernel + internal headers these accesses can and will break with newer + kernels. The union bpf_attr -> kern_version is checked at load time + to prevent accidentally loading kprobe-based bpf programs written + for a different kernel. Networking programs don't do kern_version check. + +Q: How much stack space a BPF program uses? +A: Currently all program types are limited to 512 bytes of stack + space, but the verifier computes the actual amount of stack used + and both interpreter and most JITed code consume necessary amount. + +Q: Can BPF be offloaded to HW? +A: YES. BPF HW offload is supported by NFP driver. + +Q: Does classic BPF interpreter still exist? +A: NO. Classic BPF programs are converted into extend BPF instructions. + +Q: Can BPF call arbitrary kernel functions? +A: NO. BPF programs can only call a set of helper functions which + is defined for every program type. + +Q: Can BPF overwrite arbitrary kernel memory? +A: NO. Tracing bpf programs can _read_ arbitrary memory with bpf_probe_read() + and bpf_probe_read_str() helpers. Networking programs cannot read + arbitrary memory, since they don't have access to these helpers. + Programs can never read or write arbitrary memory directly. + +Q: Can BPF overwrite arbitrary user memory? +A: Sort-of. Tracing BPF programs can overwrite the user memory + of the current task with bpf_probe_write_user(). Every time such + program is loaded the kernel will print warning message, so + this helper is only useful for experiments and prototypes. + Tracing BPF programs are root only. + +Q: When bpf_trace_printk() helper is used the kernel prints nasty + warning message. Why is that? +A: This is done to nudge program authors into better interfaces when + programs need to pass data to user space. Like bpf_perf_event_output() + can be used to efficiently stream data via perf ring buffer. + BPF maps can be used for asynchronous data sharing between kernel + and user space. bpf_trace_printk() should only be used for debugging. + +Q: Can BPF functionality such as new program or map types, new + helpers, etc be added out of kernel module code? +A: NO. diff --git a/MAINTAINERS b/MAINTAINERS index c4d21b302409..66471f7d77d4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2713,6 +2713,7 @@ L: linux-kernel@vger.kernel.org S: Supported F: arch/x86/net/bpf_jit* F: Documentation/networking/filter.txt +F: Documentation/bpf/ F: include/linux/bpf* F: include/linux/filter.h F: include/uapi/linux/bpf* -- cgit v1.2.3 From 9b796ffcd16dfaf820ecc6a9dc287e6d758a556e Mon Sep 17 00:00:00 2001 From: Jules Maselbas Date: Tue, 31 Oct 2017 11:32:57 +0100 Subject: dt-bindings: usb: max3421: Interrupt-parent is optional Documentation modification, now interrupt-parent is an optional property. Also fix few typos. Signed-off-by: Jules Maselbas Reported-by: Sergei Shtylyov Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/usb/maxim,max3421.txt | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/maxim,max3421.txt b/Documentation/devicetree/bindings/usb/maxim,max3421.txt index 7536c3ab3e5a..8cdbe0c85188 100644 --- a/Documentation/devicetree/bindings/usb/maxim,max3421.txt +++ b/Documentation/devicetree/bindings/usb/maxim,max3421.txt @@ -1,17 +1,19 @@ Maxim Integrated SPI-based USB 2.0 host controller MAX3421E Required properties: - - compatible: "maxim,max3421" + - compatible: Should be "maxim,max3421" - spi-max-frequency: maximum frequency for this device must not exceed 26 MHz. - reg: chip select number to which this device is connected. - maxim,vbus-en-pin: GPOUTx is the number (1-8) of the GPOUT pin of MAX3421E to drive Vbus. ACTIVE_LEVEL is 0 or 1. - - interrupt-parent: the phandle of the associated interrupt controller. - - interrupts: the interuption line description for the interrupt controller. + - interrupts: the interrupt line description for the interrupt controller. The driver configures MAX3421E for active low level triggered interrupts, configure your interrupt line accordingly. +Optional property: + - interrupt-parent: the phandle to the associated interrupt controller. + Example: usb@0 { -- cgit v1.2.3 From a8a5267756c32308681a1c9a42bd8079a76ff4a4 Mon Sep 17 00:00:00 2001 From: Serge Semin Date: Sun, 22 Oct 2017 23:38:03 +0300 Subject: usb: usb251xb: Update usb251xb bindings Since hub usb2517 is going to be supported by the usb251xb driver, the bindings need to be properly updated. Particularly: - add "microchip,usb2517" and "microchip,usb2517i" compatible strings. - add "boolean" description to all the properties, which really accept a boolean value including a new one "led-{usb,speed}-mode". - move reset-gpios property to the optional section. It isn't defined as required in the code and shouldn't be required at all, since hardware may handle reset pins by itself. - add new led-{usb,speed}-mode mode property. USB2517 device supports two LED modes: USB mode and speed (default) indication mode. The last one can be switched on by this property. - add {bp,sp}-max-{total,removable}-current-microamp property measured in microamp. It hasn't been defined as property before. Since the limitation specified by these parameters is hardware specific it needs to be defined in dts. Signed-off-by: Serge Semin Acked-by: Rob Herring Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/usb/usb251xb.txt | 46 +++++++++++++++------- 1 file changed, 32 insertions(+), 14 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/usb251xb.txt b/Documentation/devicetree/bindings/usb/usb251xb.txt index 3957d4edaa74..168ff819e827 100644 --- a/Documentation/devicetree/bindings/usb/usb251xb.txt +++ b/Documentation/devicetree/bindings/usb/usb251xb.txt @@ -1,16 +1,17 @@ Microchip USB 2.0 Hi-Speed Hub Controller -The device node for the configuration of a Microchip USB251xB/xBi USB 2.0 +The device node for the configuration of a Microchip USB251x/xBi USB 2.0 Hi-Speed Controller. Required properties : - compatible : Should be "microchip,usb251xb" or one of the specific types: "microchip,usb2512b", "microchip,usb2512bi", "microchip,usb2513b", - "microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi" - - reset-gpios : Should specify the gpio for hub reset + "microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi", + "microchip,usb2517", "microchip,usb2517i" - reg : I2C address on the selected bus (default is <0x2C>) Optional properties : + - reset-gpios : Should specify the gpio for hub reset - skip-config : Skip Hub configuration, but only send the USB-Attach command - vendor-id : Set USB Vendor ID of the hub (16 bit, default is 0x0424) - product-id : Set USB Product ID of the hub (16 bit, default depends on type) @@ -19,29 +20,47 @@ Optional properties : - manufacturer : Set USB Manufacturer string (max 31 characters long) - product : Set USB Product string (max 31 characters long) - serial : Set USB Serial string (max 31 characters long) - - {bus,self}-powered : selects between self- and bus-powered operation (default - is self-powered) - - disable-hi-speed : disable USB Hi-Speed support + - {bus,self}-powered : selects between self- and bus-powered operation + (boolean, default is self-powered) + - disable-hi-speed : disable USB Hi-Speed support (boolean) - {multi,single}-tt : selects between multi- and single-transaction-translator - (default is multi-tt) - - disable-eop : disable End of Packet generation in full-speed mode + (boolean, default is multi-tt) + - disable-eop : disable End of Packet generation in full-speed mode (boolean) - {ganged,individual}-sensing : select over-current sense type in self-powered - mode (default is individual) + mode (boolean, default is individual) - {ganged,individual}-port-switching : select port power switching mode - (default is individual) + (boolean, default is individual) - dynamic-power-switching : enable auto-switching from self- to bus-powered - operation if the local power source is removed or unavailable + operation if the local power source is removed or unavailable (boolean) - oc-delay-us : Delay time (in microseconds) for filtering the over-current sense inputs. Valid values are 100, 4000, 8000 (default) and 16000. If an invalid value is given, the default is used instead. - - compound-device : indicate the hub is part of a compound device - - port-mapping-mode : enable port mapping mode + - compound-device : indicate the hub is part of a compound device (boolean) + - port-mapping-mode : enable port mapping mode (boolean) + - led-{usb,speed}-mode : led usb/speed indication mode selection + (boolean, default is speed mode) - string-support : enable string descriptor support (required for manufacturer, product and serial string configuration) - non-removable-ports : Should specify the ports which have a non-removable device connected. - sp-disabled-ports : Specifies the ports which will be self-power disabled - bp-disabled-ports : Specifies the ports which will be bus-power disabled + - sp-max-total-current-microamp: Specifies max current consumed by the hub + from VBUS when operating in self-powered hub. It includes the hub + silicon along with all associated circuitry including a permanently + attached peripheral (range: 0 - 100000 uA, default 1000 uA) + - bp-max-total-current-microamp: Specifies max current consumed by the hub + from VBUS when operating in self-powered hub. It includes the hub + silicon along with all associated circuitry including a permanently + attached peripheral (range: 0 - 510000 uA, default 100000 uA) + - sp-max-removable-current-microamp: Specifies max current consumed by the hub + from VBUS when operating in self-powered hub. It includes the hub + silicon along with all associated circuitry excluding a permanently + attached peripheral (range: 0 - 100000 uA, default 1000 uA) + - bp-max-removable-current-microamp: Specifies max current consumed by the hub + from VBUS when operating in self-powered hub. It includes the hub + silicon along with all associated circuitry excluding a permanently + attached peripheral (range: 0 - 510000 uA, default 100000 uA) - power-on-time-ms : Specifies the time it takes from the time the host initiates the power-on sequence to a port until the port has adequate power. The value is given in ms in a 0 - 510 range (default is 100ms). @@ -56,7 +75,6 @@ Examples: usb2514b@2c { compatible = "microchip,usb2514b"; reg = <0x2c>; - reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>; vendor-id = /bits/ 16 <0x0000>; product-id = /bits/ 16 <0x0000>; string-support; -- cgit v1.2.3 From efb5b43a5410fefa0516691af8e73f255260f598 Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Sun, 29 Oct 2017 14:25:48 +0100 Subject: dt-bindings: add vendor prefix for Next Thing Co. Next Thing Co. is the company behind the C.H.I.P. and C.H.I.P. Pro miniature single board computers. The "nextthing" vendor-prefix is already used for these two board as well as their own "GR8" SoC. Cc: Alexander Kaplan Signed-off-by: Martin Blumenstingl Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 01500f2a399b..b2c1b8d80367 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -230,6 +230,7 @@ netlogic Broadcom Corporation (formerly NetLogic Microsystems) netron-dy Netron DY netxeon Shenzhen Netxeon Technology CO., LTD nexbox Nexbox +nextthing Next Thing Co. newhaven Newhaven Display International ni National Instruments nintendo Nintendo -- cgit v1.2.3 From f0e230ad877855567607fe2f40802b6317ad38f3 Mon Sep 17 00:00:00 2001 From: Guoqing Jiang Date: Tue, 24 Oct 2017 15:11:53 +0800 Subject: md-cluster: update document for raid10 Signed-off-by: Guoqing Jiang Signed-off-by: Shaohua Li --- Documentation/md/md-cluster.txt | 3 ++- drivers/md/Kconfig | 5 +++-- drivers/md/md-cluster.c | 2 +- 3 files changed, 6 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/md/md-cluster.txt b/Documentation/md/md-cluster.txt index 82ee51604e9a..e1055f105cf5 100644 --- a/Documentation/md/md-cluster.txt +++ b/Documentation/md/md-cluster.txt @@ -1,4 +1,5 @@ -The cluster MD is a shared-device RAID for a cluster. +The cluster MD is a shared-device RAID for a cluster, it supports +two levels: raid1 and raid10 (limited support). 1. On-disk format diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 4a249ee86364..83b9362be09c 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -178,7 +178,7 @@ config MD_FAULTY config MD_CLUSTER - tristate "Cluster Support for MD (EXPERIMENTAL)" + tristate "Cluster Support for MD" depends on BLK_DEV_MD depends on DLM default n @@ -188,7 +188,8 @@ config MD_CLUSTER nodes in the cluster can access the MD devices simultaneously. This brings the redundancy (and uptime) of RAID levels across the - nodes of the cluster. + nodes of the cluster. Currently, it can work with raid1 and raid10 + (limited support). If unsure, say N. diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c index d0fd1bd8575c..79bfbc840385 100644 --- a/drivers/md/md-cluster.c +++ b/drivers/md/md-cluster.c @@ -1478,7 +1478,7 @@ static struct md_cluster_operations cluster_ops = { static int __init cluster_init(void) { - pr_warn("md-cluster: EXPERIMENTAL. Use with caution\n"); + pr_warn("md-cluster: support raid1 and raid10 (limited support)\n"); pr_info("Registering Cluster MD functions\n"); register_md_cluster_operations(&cluster_ops, THIS_MODULE); return 0; -- cgit v1.2.3 From aa795c41d9cd41dc9c915dd1956ddd0e4ae44485 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Fri, 1 Sep 2017 16:16:40 -0700 Subject: clk: Add devm_of_clk_add_hw_provider()/del_provider() APIs Sometimes we only have one of_clk_del_provider() call in driver error and remove paths, because we're missing a devm_of_clk_add_hw_provider() API. Introduce the API so we can convert drivers to use this and potentially reduce the amount of code needed to remove providers in drivers. Signed-off-by: Stephen Boyd --- Documentation/driver-model/devres.txt | 1 + drivers/clk/clk.c | 52 +++++++++++++++++++++++++++++++++++ include/linux/clk-provider.h | 13 +++++++++ 3 files changed, 66 insertions(+) (limited to 'Documentation') diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt index 69f08c0f23a8..c180045eb43b 100644 --- a/Documentation/driver-model/devres.txt +++ b/Documentation/driver-model/devres.txt @@ -237,6 +237,7 @@ CLOCK devm_clk_get() devm_clk_put() devm_clk_hw_register() + devm_of_clk_add_hw_provider() DMA dmam_alloc_coherent() diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index c8d83acda006..856d4858ae27 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -3177,6 +3177,37 @@ int of_clk_add_hw_provider(struct device_node *np, } EXPORT_SYMBOL_GPL(of_clk_add_hw_provider); +static void devm_of_clk_release_provider(struct device *dev, void *res) +{ + of_clk_del_provider(*(struct device_node **)res); +} + +int devm_of_clk_add_hw_provider(struct device *dev, + struct clk_hw *(*get)(struct of_phandle_args *clkspec, + void *data), + void *data) +{ + struct device_node **ptr, *np; + int ret; + + ptr = devres_alloc(devm_of_clk_release_provider, sizeof(*ptr), + GFP_KERNEL); + if (!ptr) + return -ENOMEM; + + np = dev->of_node; + ret = of_clk_add_hw_provider(np, get, data); + if (!ret) { + *ptr = np; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return ret; +} +EXPORT_SYMBOL_GPL(devm_of_clk_add_hw_provider); + /** * of_clk_del_provider() - Remove a previously registered clock provider * @np: Device node pointer associated with clock provider @@ -3198,6 +3229,27 @@ void of_clk_del_provider(struct device_node *np) } EXPORT_SYMBOL_GPL(of_clk_del_provider); +static int devm_clk_provider_match(struct device *dev, void *res, void *data) +{ + struct device_node **np = res; + + if (WARN_ON(!np || !*np)) + return 0; + + return *np == data; +} + +void devm_of_clk_del_provider(struct device *dev) +{ + int ret; + + ret = devres_release(dev, devm_of_clk_release_provider, + devm_clk_provider_match, dev->of_node); + + WARN_ON(ret); +} +EXPORT_SYMBOL(devm_of_clk_del_provider); + static struct clk_hw * __of_clk_get_hw_from_provider(struct of_clk_provider *provider, struct of_phandle_args *clkspec) diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 5100ec1b5d55..ba79d6186133 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -815,7 +815,12 @@ int of_clk_add_hw_provider(struct device_node *np, struct clk_hw *(*get)(struct of_phandle_args *clkspec, void *data), void *data); +int devm_of_clk_add_hw_provider(struct device *dev, + struct clk_hw *(*get)(struct of_phandle_args *clkspec, + void *data), + void *data); void of_clk_del_provider(struct device_node *np); +void devm_of_clk_del_provider(struct device *dev); struct clk *of_clk_src_simple_get(struct of_phandle_args *clkspec, void *data); struct clk_hw *of_clk_hw_simple_get(struct of_phandle_args *clkspec, @@ -847,7 +852,15 @@ static inline int of_clk_add_hw_provider(struct device_node *np, { return 0; } +static inline int devm_of_clk_add_hw_provider(struct device *dev, + struct clk_hw *(*get)(struct of_phandle_args *clkspec, + void *data), + void *data) +{ + return 0; +} static inline void of_clk_del_provider(struct device_node *np) {} +static inline void devm_of_clk_del_provider(struct device *dev) {} static inline struct clk *of_clk_src_simple_get( struct of_phandle_args *clkspec, void *data) { -- cgit v1.2.3 From 5e70ca8753c8d9749d206a4fdb14f22a6ba1d893 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 13 Oct 2017 13:26:35 +0200 Subject: clk: qcom: Elaborate on "active" clocks in the RPM clock bindings The concept of "active" clocks is just explained in a bried comment in the device driver, let's explain it a bit more in the device tree bindings so everyone understands this. Cc: devicetree@vger.kernel.org Acked-by: Rob Herring Signed-off-by: Linus Walleij Signed-off-by: Stephen Boyd --- Documentation/devicetree/bindings/clock/qcom,rpmcc.txt | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt index a7235e9e1c97..32c6e9ce64c3 100644 --- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt +++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt @@ -16,6 +16,14 @@ Required properties : - #clock-cells : shall contain 1 +The clock enumerators are defined in +and come in pairs: FOO_CLK followed by FOO_A_CLK. The latter clock +is an "active" clock, which means that the consumer only care that the +clock is available when the apps CPU subsystem is active, i.e. not +suspended or in deep idle. If it is important that the clock keeps running +during system suspend, you need to specify the non-active clock, the one +not containing *_A_* in the enumerator name. + Example: smd { compatible = "qcom,smd"; -- cgit v1.2.3 From 856e6bb91e198c4fb0ca2f4f3ee0e7f660b3e0ca Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Fri, 13 Oct 2017 13:59:16 +0200 Subject: clk: qcom: Update DT bindings for the MSM8660/APQ8060 RPMCC These compatible strings need to be added to extend support for the RPM CC to cover MSM8660/APQ8060. We also need to add enumberators to the include file for a few clocks that were missing. Cc: devicetree@vger.kernel.org Acked-by: Rob Herring Signed-off-by: Linus Walleij Signed-off-by: Stephen Boyd --- Documentation/devicetree/bindings/clock/qcom,rpmcc.txt | 2 ++ include/dt-bindings/clock/qcom,rpmcc.h | 3 +++ 2 files changed, 5 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt index 32c6e9ce64c3..833a89f06ae0 100644 --- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt +++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt @@ -10,6 +10,8 @@ Required properties : - compatible : shall contain only one of the following. The generic compatible "qcom,rpmcc" should be also included. + "qcom,rpmcc-msm8660", "qcom,rpmcc" + "qcom,rpmcc-apq8060", "qcom,rpmcc" "qcom,rpmcc-msm8916", "qcom,rpmcc" "qcom,rpmcc-msm8974", "qcom,rpmcc" "qcom,rpmcc-apq8064", "qcom,rpmcc" diff --git a/include/dt-bindings/clock/qcom,rpmcc.h b/include/dt-bindings/clock/qcom,rpmcc.h index 96b63c00249e..29dad206a74b 100644 --- a/include/dt-bindings/clock/qcom,rpmcc.h +++ b/include/dt-bindings/clock/qcom,rpmcc.h @@ -37,6 +37,9 @@ #define RPM_SYS_FABRIC_A_CLK 19 #define RPM_SFPB_CLK 20 #define RPM_SFPB_A_CLK 21 +#define RPM_SMI_CLK 22 +#define RPM_SMI_A_CLK 23 +#define RPM_PLL4_CLK 24 /* SMD RPM clocks */ #define RPM_SMD_XO_CLK_SRC 0 -- cgit v1.2.3 From 7066fdd0d7427f1ba455d186e75213c442c9663b Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Tue, 10 Oct 2017 14:27:13 +0530 Subject: clk: qcom: clk-smd-rpm: add msm8996 rpmclks Add all RPM controlled clocks on msm8996 platform [srini: Fixed various issues with offsets and made names specific to msm8996] Signed-off-by: Srinivas Kandagatla Signed-off-by: Rajendra Nayak Acked-by: Rob Herring Acked-by: Bjorn Andersson Signed-off-by: Stephen Boyd --- .../devicetree/bindings/clock/qcom,rpmcc.txt | 1 + drivers/clk/qcom/clk-smd-rpm.c | 82 ++++++++++++++++++++++ include/dt-bindings/clock/qcom,rpmcc.h | 14 ++++ include/linux/soc/qcom/smd-rpm.h | 4 ++ 4 files changed, 101 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt index 833a89f06ae0..4491d1c104aa 100644 --- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt +++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt @@ -15,6 +15,7 @@ Required properties : "qcom,rpmcc-msm8916", "qcom,rpmcc" "qcom,rpmcc-msm8974", "qcom,rpmcc" "qcom,rpmcc-apq8064", "qcom,rpmcc" + "qcom,rpmcc-msm8996", "qcom,rpmcc" - #clock-cells : shall contain 1 diff --git a/drivers/clk/qcom/clk-smd-rpm.c b/drivers/clk/qcom/clk-smd-rpm.c index cc03d5508627..c26d9007bfc4 100644 --- a/drivers/clk/qcom/clk-smd-rpm.c +++ b/drivers/clk/qcom/clk-smd-rpm.c @@ -530,9 +530,91 @@ static const struct rpm_smd_clk_desc rpm_clk_msm8974 = { .clks = msm8974_clks, .num_clks = ARRAY_SIZE(msm8974_clks), }; + +/* msm8996 */ +DEFINE_CLK_SMD_RPM(msm8996, pcnoc_clk, pcnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 0); +DEFINE_CLK_SMD_RPM(msm8996, snoc_clk, snoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 1); +DEFINE_CLK_SMD_RPM(msm8996, cnoc_clk, cnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 2); +DEFINE_CLK_SMD_RPM(msm8996, bimc_clk, bimc_a_clk, QCOM_SMD_RPM_MEM_CLK, 0); +DEFINE_CLK_SMD_RPM(msm8996, mmssnoc_axi_rpm_clk, mmssnoc_axi_rpm_a_clk, + QCOM_SMD_RPM_MMAXI_CLK, 0); +DEFINE_CLK_SMD_RPM(msm8996, ipa_clk, ipa_a_clk, QCOM_SMD_RPM_IPA_CLK, 0); +DEFINE_CLK_SMD_RPM(msm8996, ce1_clk, ce1_a_clk, QCOM_SMD_RPM_CE_CLK, 0); +DEFINE_CLK_SMD_RPM_BRANCH(msm8996, aggre1_noc_clk, aggre1_noc_a_clk, + QCOM_SMD_RPM_AGGR_CLK, 1, 1000); +DEFINE_CLK_SMD_RPM_BRANCH(msm8996, aggre2_noc_clk, aggre2_noc_a_clk, + QCOM_SMD_RPM_AGGR_CLK, 2, 1000); +DEFINE_CLK_SMD_RPM_QDSS(msm8996, qdss_clk, qdss_a_clk, + QCOM_SMD_RPM_MISC_CLK, 1); +DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, bb_clk1, bb_clk1_a, 1); +DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, bb_clk2, bb_clk2_a, 2); +DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, rf_clk1, rf_clk1_a, 4); +DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, rf_clk2, rf_clk2_a, 5); +DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, ln_bb_clk, ln_bb_a_clk, 8); +DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, div_clk1, div_clk1_a, 0xb); +DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, div_clk2, div_clk2_a, 0xc); +DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8996, div_clk3, div_clk3_a, 0xd); +DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, bb_clk1_pin, bb_clk1_a_pin, 1); +DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, bb_clk2_pin, bb_clk2_a_pin, 2); +DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, rf_clk1_pin, rf_clk1_a_pin, 4); +DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8996, rf_clk2_pin, rf_clk2_a_pin, 5); + +static struct clk_smd_rpm *msm8996_clks[] = { + [RPM_SMD_PCNOC_CLK] = &msm8996_pcnoc_clk, + [RPM_SMD_PCNOC_A_CLK] = &msm8996_pcnoc_a_clk, + [RPM_SMD_SNOC_CLK] = &msm8996_snoc_clk, + [RPM_SMD_SNOC_A_CLK] = &msm8996_snoc_a_clk, + [RPM_SMD_CNOC_CLK] = &msm8996_cnoc_clk, + [RPM_SMD_CNOC_A_CLK] = &msm8996_cnoc_a_clk, + [RPM_SMD_BIMC_CLK] = &msm8996_bimc_clk, + [RPM_SMD_BIMC_A_CLK] = &msm8996_bimc_a_clk, + [RPM_SMD_MMAXI_CLK] = &msm8996_mmssnoc_axi_rpm_clk, + [RPM_SMD_MMAXI_A_CLK] = &msm8996_mmssnoc_axi_rpm_a_clk, + [RPM_SMD_IPA_CLK] = &msm8996_ipa_clk, + [RPM_SMD_IPA_A_CLK] = &msm8996_ipa_a_clk, + [RPM_SMD_CE1_CLK] = &msm8996_ce1_clk, + [RPM_SMD_CE1_A_CLK] = &msm8996_ce1_a_clk, + [RPM_SMD_AGGR1_NOC_CLK] = &msm8996_aggre1_noc_clk, + [RPM_SMD_AGGR1_NOC_A_CLK] = &msm8996_aggre1_noc_a_clk, + [RPM_SMD_AGGR2_NOC_CLK] = &msm8996_aggre2_noc_clk, + [RPM_SMD_AGGR2_NOC_A_CLK] = &msm8996_aggre2_noc_a_clk, + [RPM_SMD_QDSS_CLK] = &msm8996_qdss_clk, + [RPM_SMD_QDSS_A_CLK] = &msm8996_qdss_a_clk, + [RPM_SMD_BB_CLK1] = &msm8996_bb_clk1, + [RPM_SMD_BB_CLK1_A] = &msm8996_bb_clk1_a, + [RPM_SMD_BB_CLK2] = &msm8996_bb_clk2, + [RPM_SMD_BB_CLK2_A] = &msm8996_bb_clk2_a, + [RPM_SMD_RF_CLK1] = &msm8996_rf_clk1, + [RPM_SMD_RF_CLK1_A] = &msm8996_rf_clk1_a, + [RPM_SMD_RF_CLK2] = &msm8996_rf_clk2, + [RPM_SMD_RF_CLK2_A] = &msm8996_rf_clk2_a, + [RPM_SMD_LN_BB_CLK] = &msm8996_ln_bb_clk, + [RPM_SMD_LN_BB_A_CLK] = &msm8996_ln_bb_a_clk, + [RPM_SMD_DIV_CLK1] = &msm8996_div_clk1, + [RPM_SMD_DIV_A_CLK1] = &msm8996_div_clk1_a, + [RPM_SMD_DIV_CLK2] = &msm8996_div_clk2, + [RPM_SMD_DIV_A_CLK2] = &msm8996_div_clk2_a, + [RPM_SMD_DIV_CLK3] = &msm8996_div_clk3, + [RPM_SMD_DIV_A_CLK3] = &msm8996_div_clk3_a, + [RPM_SMD_BB_CLK1_PIN] = &msm8996_bb_clk1_pin, + [RPM_SMD_BB_CLK1_A_PIN] = &msm8996_bb_clk1_a_pin, + [RPM_SMD_BB_CLK2_PIN] = &msm8996_bb_clk2_pin, + [RPM_SMD_BB_CLK2_A_PIN] = &msm8996_bb_clk2_a_pin, + [RPM_SMD_RF_CLK1_PIN] = &msm8996_rf_clk1_pin, + [RPM_SMD_RF_CLK1_A_PIN] = &msm8996_rf_clk1_a_pin, + [RPM_SMD_RF_CLK2_PIN] = &msm8996_rf_clk2_pin, + [RPM_SMD_RF_CLK2_A_PIN] = &msm8996_rf_clk2_a_pin, +}; + +static const struct rpm_smd_clk_desc rpm_clk_msm8996 = { + .clks = msm8996_clks, + .num_clks = ARRAY_SIZE(msm8996_clks), +}; + static const struct of_device_id rpm_smd_clk_match_table[] = { { .compatible = "qcom,rpmcc-msm8916", .data = &rpm_clk_msm8916 }, { .compatible = "qcom,rpmcc-msm8974", .data = &rpm_clk_msm8974 }, + { .compatible = "qcom,rpmcc-msm8996", .data = &rpm_clk_msm8996 }, { } }; MODULE_DEVICE_TABLE(of, rpm_smd_clk_match_table); diff --git a/include/dt-bindings/clock/qcom,rpmcc.h b/include/dt-bindings/clock/qcom,rpmcc.h index 29dad206a74b..b8337a5fa347 100644 --- a/include/dt-bindings/clock/qcom,rpmcc.h +++ b/include/dt-bindings/clock/qcom,rpmcc.h @@ -104,5 +104,19 @@ #define RPM_SMD_CXO_A1_A_PIN 59 #define RPM_SMD_CXO_A2_PIN 60 #define RPM_SMD_CXO_A2_A_PIN 61 +#define RPM_SMD_AGGR1_NOC_CLK 62 +#define RPM_SMD_AGGR1_NOC_A_CLK 63 +#define RPM_SMD_AGGR2_NOC_CLK 64 +#define RPM_SMD_AGGR2_NOC_A_CLK 65 +#define RPM_SMD_MMAXI_CLK 66 +#define RPM_SMD_MMAXI_A_CLK 67 +#define RPM_SMD_IPA_CLK 68 +#define RPM_SMD_IPA_A_CLK 69 +#define RPM_SMD_CE1_CLK 70 +#define RPM_SMD_CE1_A_CLK 71 +#define RPM_SMD_DIV_CLK3 72 +#define RPM_SMD_DIV_A_CLK3 73 +#define RPM_SMD_LN_BB_CLK 74 +#define RPM_SMD_LN_BB_A_CLK 75 #endif diff --git a/include/linux/soc/qcom/smd-rpm.h b/include/linux/soc/qcom/smd-rpm.h index 2a53dcaeeeed..ebdabd669d93 100644 --- a/include/linux/soc/qcom/smd-rpm.h +++ b/include/linux/soc/qcom/smd-rpm.h @@ -26,6 +26,10 @@ struct qcom_smd_rpm; #define QCOM_SMD_RPM_SMPB 0x62706d73 #define QCOM_SMD_RPM_SPDM 0x63707362 #define QCOM_SMD_RPM_VSA 0x00617376 +#define QCOM_SMD_RPM_MMAXI_CLK 0x69786d6d +#define QCOM_SMD_RPM_IPA_CLK 0x617069 +#define QCOM_SMD_RPM_CE_CLK 0x6563 +#define QCOM_SMD_RPM_AGGR_CLK 0x72676761 int qcom_rpm_smd_write(struct qcom_smd_rpm *rpm, int state, -- cgit v1.2.3 From eb522df40e41915210856f1d654e0c31650cb526 Mon Sep 17 00:00:00 2001 From: "weiyi.lu@mediatek.com" Date: Mon, 23 Oct 2017 12:10:32 +0800 Subject: dt-bindings: ARM: Mediatek: Document bindings for MT2712 This patch adds the binding documentation for apmixedsys, bdpsys, imgsys, imgsys, infracfg, mcucfg, mfgcfg, mmsys, pericfg, topckgen, vdecsys and vencsys for Mediatek MT2712. Acked-by: Rob Herring Signed-off-by: Weiyi Lu Signed-off-by: Stephen Boyd --- .../bindings/arm/mediatek/mediatek,apmixedsys.txt | 1 + .../bindings/arm/mediatek/mediatek,bdpsys.txt | 1 + .../bindings/arm/mediatek/mediatek,imgsys.txt | 1 + .../bindings/arm/mediatek/mediatek,infracfg.txt | 1 + .../bindings/arm/mediatek/mediatek,jpgdecsys.txt | 22 ++++++++++++++++++++++ .../bindings/arm/mediatek/mediatek,mcucfg.txt | 22 ++++++++++++++++++++++ .../bindings/arm/mediatek/mediatek,mfgcfg.txt | 22 ++++++++++++++++++++++ .../bindings/arm/mediatek/mediatek,mmsys.txt | 1 + .../bindings/arm/mediatek/mediatek,pericfg.txt | 1 + .../bindings/arm/mediatek/mediatek,topckgen.txt | 1 + .../bindings/arm/mediatek/mediatek,vdecsys.txt | 1 + .../bindings/arm/mediatek/mediatek,vencsys.txt | 1 + 12 files changed, 75 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,jpgdecsys.txt create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mcucfg.txt create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mfgcfg.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,apmixedsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,apmixedsys.txt index cd977db7630c..19fc116346d6 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,apmixedsys.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,apmixedsys.txt @@ -7,6 +7,7 @@ Required Properties: - compatible: Should be one of: - "mediatek,mt2701-apmixedsys" + - "mediatek,mt2712-apmixedsys", "syscon" - "mediatek,mt6797-apmixedsys" - "mediatek,mt8135-apmixedsys" - "mediatek,mt8173-apmixedsys" diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,bdpsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,bdpsys.txt index 4137196dd686..4010e37c53a0 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,bdpsys.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,bdpsys.txt @@ -7,6 +7,7 @@ Required Properties: - compatible: Should be: - "mediatek,mt2701-bdpsys", "syscon" + - "mediatek,mt2712-bdpsys", "syscon" - #clock-cells: Must be 1 The bdpsys controller uses the common clk binding from diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,imgsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,imgsys.txt index 047b11ae5f45..868bd51a98be 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,imgsys.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,imgsys.txt @@ -7,6 +7,7 @@ Required Properties: - compatible: Should be one of: - "mediatek,mt2701-imgsys", "syscon" + - "mediatek,mt2712-imgsys", "syscon" - "mediatek,mt6797-imgsys", "syscon" - "mediatek,mt8173-imgsys", "syscon" - #clock-cells: Must be 1 diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt index 58d58e2006b8..a3430cd96d0f 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt @@ -8,6 +8,7 @@ Required Properties: - compatible: Should be one of: - "mediatek,mt2701-infracfg", "syscon" + - "mediatek,mt2712-infracfg", "syscon" - "mediatek,mt6797-infracfg", "syscon" - "mediatek,mt8135-infracfg", "syscon" - "mediatek,mt8173-infracfg", "syscon" diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,jpgdecsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,jpgdecsys.txt new file mode 100644 index 000000000000..2df799cd06a7 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,jpgdecsys.txt @@ -0,0 +1,22 @@ +Mediatek jpgdecsys controller +============================ + +The Mediatek jpgdecsys controller provides various clocks to the system. + +Required Properties: + +- compatible: Should be: + - "mediatek,mt2712-jpgdecsys", "syscon" +- #clock-cells: Must be 1 + +The jpgdecsys controller uses the common clk binding from +Documentation/devicetree/bindings/clock/clock-bindings.txt +The available clocks are defined in dt-bindings/clock/mt*-clk.h. + +Example: + +jpgdecsys: syscon@19000000 { + compatible = "mediatek,mt2712-jpgdecsys", "syscon"; + reg = <0 0x19000000 0 0x1000>; + #clock-cells = <1>; +}; diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mcucfg.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mcucfg.txt new file mode 100644 index 000000000000..b8fb03f3613e --- /dev/null +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mcucfg.txt @@ -0,0 +1,22 @@ +Mediatek mcucfg controller +============================ + +The Mediatek mcucfg controller provides various clocks to the system. + +Required Properties: + +- compatible: Should be one of: + - "mediatek,mt2712-mcucfg", "syscon" +- #clock-cells: Must be 1 + +The mcucfg controller uses the common clk binding from +Documentation/devicetree/bindings/clock/clock-bindings.txt +The available clocks are defined in dt-bindings/clock/mt*-clk.h. + +Example: + +mcucfg: syscon@10220000 { + compatible = "mediatek,mt2712-mcucfg", "syscon"; + reg = <0 0x10220000 0 0x1000>; + #clock-cells = <1>; +}; diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mfgcfg.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mfgcfg.txt new file mode 100644 index 000000000000..859e67b416d5 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mfgcfg.txt @@ -0,0 +1,22 @@ +Mediatek mfgcfg controller +============================ + +The Mediatek mfgcfg controller provides various clocks to the system. + +Required Properties: + +- compatible: Should be one of: + - "mediatek,mt2712-mfgcfg", "syscon" +- #clock-cells: Must be 1 + +The mfgcfg controller uses the common clk binding from +Documentation/devicetree/bindings/clock/clock-bindings.txt +The available clocks are defined in dt-bindings/clock/mt*-clk.h. + +Example: + +mfgcfg: syscon@13000000 { + compatible = "mediatek,mt2712-mfgcfg", "syscon"; + reg = <0 0x13000000 0 0x1000>; + #clock-cells = <1>; +}; diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt index 70529e0b58e9..4eb8bbe15c01 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.txt @@ -7,6 +7,7 @@ Required Properties: - compatible: Should be one of: - "mediatek,mt2701-mmsys", "syscon" + - "mediatek,mt2712-mmsys", "syscon" - "mediatek,mt6797-mmsys", "syscon" - "mediatek,mt8173-mmsys", "syscon" - #clock-cells: Must be 1 diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.txt index e494366782aa..d9f092eb3550 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.txt @@ -8,6 +8,7 @@ Required Properties: - compatible: Should be one of: - "mediatek,mt2701-pericfg", "syscon" + - "mediatek,mt2712-pericfg", "syscon" - "mediatek,mt8135-pericfg", "syscon" - "mediatek,mt8173-pericfg", "syscon" - #clock-cells: Must be 1 diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,topckgen.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,topckgen.txt index ec93ecbb9f3c..2024fc909d69 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,topckgen.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,topckgen.txt @@ -7,6 +7,7 @@ Required Properties: - compatible: Should be one of: - "mediatek,mt2701-topckgen" + - "mediatek,mt2712-topckgen", "syscon" - "mediatek,mt6797-topckgen" - "mediatek,mt8135-topckgen" - "mediatek,mt8173-topckgen" diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vdecsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,vdecsys.txt index d150104f928a..ea40d05089f8 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vdecsys.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,vdecsys.txt @@ -7,6 +7,7 @@ Required Properties: - compatible: Should be one of: - "mediatek,mt2701-vdecsys", "syscon" + - "mediatek,mt2712-vdecsys", "syscon" - "mediatek,mt6797-vdecsys", "syscon" - "mediatek,mt8173-vdecsys", "syscon" - #clock-cells: Must be 1 diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vencsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,vencsys.txt index 8a93be643647..851545357e94 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,vencsys.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,vencsys.txt @@ -6,6 +6,7 @@ The Mediatek vencsys controller provides various clocks to the system. Required Properties: - compatible: Should be one of: + - "mediatek,mt2712-vencsys", "syscon" - "mediatek,mt6797-vencsys", "syscon" - "mediatek,mt8173-vencsys", "syscon" - #clock-cells: Must be 1 -- cgit v1.2.3 From 079573e373d3714acd53aad02a3c52355fb177ab Mon Sep 17 00:00:00 2001 From: Corentin Labbe Date: Tue, 31 Oct 2017 09:19:09 +0100 Subject: dt-bindings: net: dwmac-sun8i: update documentation about integrated PHY This patch add documentation about the MDIO switch used on sun8i-h3-emac for integrated PHY. Signed-off-by: Corentin Labbe Acked-by: Florian Fainelli Acked-by: Rob Herring Reviewed-by: Andrew Lunn Signed-off-by: Maxime Ripard --- .../devicetree/bindings/net/dwmac-sun8i.txt | 147 +++++++++++++++++++-- 1 file changed, 135 insertions(+), 12 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/dwmac-sun8i.txt b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt index 725f3b187886..3d6d5fa0c4d5 100644 --- a/Documentation/devicetree/bindings/net/dwmac-sun8i.txt +++ b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt @@ -4,18 +4,18 @@ This device is a platform glue layer for stmmac. Please see stmmac.txt for the other unchanged properties. Required properties: -- compatible: should be one of the following string: +- compatible: must be one of the following string: "allwinner,sun8i-a83t-emac" "allwinner,sun8i-h3-emac" "allwinner,sun8i-v3s-emac" "allwinner,sun50i-a64-emac" - reg: address and length of the register for the device. - interrupts: interrupt for the device -- interrupt-names: should be "macirq" +- interrupt-names: must be "macirq" - clocks: A phandle to the reference clock for this device -- clock-names: should be "stmmaceth" +- clock-names: must be "stmmaceth" - resets: A phandle to the reset control for this device -- reset-names: should be "stmmaceth" +- reset-names: must be "stmmaceth" - phy-mode: See ethernet.txt - phy-handle: See ethernet.txt - #address-cells: shall be 1 @@ -39,23 +39,42 @@ Optional properties for the following compatibles: - allwinner,leds-active-low: EPHY LEDs are active low Required child node of emac: -- mdio bus node: should be named mdio +- mdio bus node: should be named mdio with compatible "snps,dwmac-mdio" Required properties of the mdio node: - #address-cells: shall be 1 - #size-cells: shall be 0 -The device node referenced by "phy" or "phy-handle" should be a child node +The device node referenced by "phy" or "phy-handle" must be a child node of the mdio node. See phy.txt for the generic PHY bindings. -Required properties of the phy node with the following compatibles: +The following compatibles require that the emac node have a mdio-mux child +node called "mdio-mux": + - "allwinner,sun8i-h3-emac" + - "allwinner,sun8i-v3s-emac": +Required properties for the mdio-mux node: + - compatible = "allwinner,sun8i-h3-mdio-mux" + - mdio-parent-bus: a phandle to EMAC mdio + - one child mdio for the integrated mdio with the compatible + "allwinner,sun8i-h3-mdio-internal" + - one child mdio for the external mdio if present (V3s have none) +Required properties for the mdio-mux children node: + - reg: 1 for internal MDIO bus, 2 for external MDIO bus + +The following compatibles require a PHY node representing the integrated +PHY, under the integrated MDIO bus node if an mdio-mux node is used: - "allwinner,sun8i-h3-emac", - "allwinner,sun8i-v3s-emac": + +Additional information regarding generic multiplexer properties can be found +at Documentation/devicetree/bindings/net/mdio-mux.txt + +Required properties of the integrated phy node: - clocks: a phandle to the reference clock for the EPHY - resets: a phandle to the reset control for the EPHY +- Must be a child of the integrated mdio -Example: - +Example with integrated PHY: emac: ethernet@1c0b000 { compatible = "allwinner,sun8i-h3-emac"; syscon = <&syscon>; @@ -72,13 +91,117 @@ emac: ethernet@1c0b000 { phy-handle = <&int_mii_phy>; phy-mode = "mii"; allwinner,leds-active-low; + + mdio: mdio { + #address-cells = <1>; + #size-cells = <0>; + compatible = "snps,dwmac-mdio"; + }; + + mdio-mux { + compatible = "mdio-mux", "allwinner,sun8i-h3-mdio-mux"; + #address-cells = <1>; + #size-cells = <0>; + + mdio-parent-bus = <&mdio>; + + int_mdio: mdio@1 { + compatible = "allwinner,sun8i-h3-mdio-internal"; + reg = <1>; + #address-cells = <1>; + #size-cells = <0>; + int_mii_phy: ethernet-phy@1 { + reg = <1>; + clocks = <&ccu CLK_BUS_EPHY>; + resets = <&ccu RST_BUS_EPHY>; + phy-is-integrated; + }; + }; + ext_mdio: mdio@2 { + reg = <2>; + #address-cells = <1>; + #size-cells = <0>; + }; + }; +}; + +Example with external PHY: +emac: ethernet@1c0b000 { + compatible = "allwinner,sun8i-h3-emac"; + syscon = <&syscon>; + reg = <0x01c0b000 0x104>; + interrupts = ; + interrupt-names = "macirq"; + resets = <&ccu RST_BUS_EMAC>; + reset-names = "stmmaceth"; + clocks = <&ccu CLK_BUS_EMAC>; + clock-names = "stmmaceth"; + #address-cells = <1>; + #size-cells = <0>; + + phy-handle = <&ext_rgmii_phy>; + phy-mode = "rgmii"; + allwinner,leds-active-low; + + mdio: mdio { + #address-cells = <1>; + #size-cells = <0>; + compatible = "snps,dwmac-mdio"; + }; + + mdio-mux { + compatible = "allwinner,sun8i-h3-mdio-mux"; + #address-cells = <1>; + #size-cells = <0>; + + mdio-parent-bus = <&mdio>; + + int_mdio: mdio@1 { + compatible = "allwinner,sun8i-h3-mdio-internal"; + reg = <1>; + #address-cells = <1>; + #size-cells = <0>; + int_mii_phy: ethernet-phy@1 { + reg = <1>; + clocks = <&ccu CLK_BUS_EPHY>; + resets = <&ccu RST_BUS_EPHY>; + }; + }; + ext_mdio: mdio@2 { + reg = <2>; + #address-cells = <1>; + #size-cells = <0>; + ext_rgmii_phy: ethernet-phy@1 { + reg = <1>; + }; + }: + }; +}; + +Example with SoC without integrated PHY + +emac: ethernet@1c0b000 { + compatible = "allwinner,sun8i-a83t-emac"; + syscon = <&syscon>; + reg = <0x01c0b000 0x104>; + interrupts = ; + interrupt-names = "macirq"; + resets = <&ccu RST_BUS_EMAC>; + reset-names = "stmmaceth"; + clocks = <&ccu CLK_BUS_EMAC>; + clock-names = "stmmaceth"; + #address-cells = <1>; + #size-cells = <0>; + + phy-handle = <&ext_rgmii_phy>; + phy-mode = "rgmii"; + mdio: mdio { + compatible = "snps,dwmac-mdio"; #address-cells = <1>; #size-cells = <0>; - int_mii_phy: ethernet-phy@1 { + ext_rgmii_phy: ethernet-phy@1 { reg = <1>; - clocks = <&ccu CLK_BUS_EPHY>; - resets = <&ccu RST_BUS_EPHY>; }; }; }; -- cgit v1.2.3 From 808ecf4ad087f80c2eee99af67549f05d5315694 Mon Sep 17 00:00:00 2001 From: Sean Wang Date: Thu, 5 Oct 2017 11:50:22 +0800 Subject: dt-bindings: clock: mediatek: document clk bindings for MediaTek MT7622 SoC This patch adds the binding documentation for apmixedsys, ethsys, hifsys, infracfg, pericfg, topckgen and audsys for MT7622. Signed-off-by: Chen Zhong Signed-off-by: Sean Wang Acked-by: Rob Herring Signed-off-by: Stephen Boyd --- .../bindings/arm/mediatek/mediatek,apmixedsys.txt | 1 + .../bindings/arm/mediatek/mediatek,audsys.txt | 22 ++++++++++++++++++++++ .../bindings/arm/mediatek/mediatek,ethsys.txt | 1 + .../bindings/arm/mediatek/mediatek,hifsys.txt | 1 + .../bindings/arm/mediatek/mediatek,infracfg.txt | 1 + .../bindings/arm/mediatek/mediatek,pciesys.txt | 22 ++++++++++++++++++++++ .../bindings/arm/mediatek/mediatek,pericfg.txt | 1 + .../bindings/arm/mediatek/mediatek,sgmiisys.txt | 22 ++++++++++++++++++++++ .../bindings/arm/mediatek/mediatek,ssusbsys.txt | 22 ++++++++++++++++++++++ .../bindings/arm/mediatek/mediatek,topckgen.txt | 1 + 10 files changed, 94 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.txt create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,pciesys.txt create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,ssusbsys.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,apmixedsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,apmixedsys.txt index 19fc116346d6..b404d592ce58 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,apmixedsys.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,apmixedsys.txt @@ -9,6 +9,7 @@ Required Properties: - "mediatek,mt2701-apmixedsys" - "mediatek,mt2712-apmixedsys", "syscon" - "mediatek,mt6797-apmixedsys" + - "mediatek,mt7622-apmixedsys" - "mediatek,mt8135-apmixedsys" - "mediatek,mt8173-apmixedsys" - #clock-cells: Must be 1 diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.txt new file mode 100644 index 000000000000..9b8f578d5e19 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,audsys.txt @@ -0,0 +1,22 @@ +MediaTek AUDSYS controller +============================ + +The MediaTek AUDSYS controller provides various clocks to the system. + +Required Properties: + +- compatible: Should be one of: + - "mediatek,mt7622-audsys", "syscon" +- #clock-cells: Must be 1 + +The AUDSYS controller uses the common clk binding from +Documentation/devicetree/bindings/clock/clock-bindings.txt +The available clocks are defined in dt-bindings/clock/mt*-clk.h. + +Example: + +audsys: audsys@11220000 { + compatible = "mediatek,mt7622-audsys", "syscon"; + reg = <0 0x11220000 0 0x1000>; + #clock-cells = <1>; +}; diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,ethsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,ethsys.txt index 768f3a5bc055..7aa3fa167668 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,ethsys.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,ethsys.txt @@ -7,6 +7,7 @@ Required Properties: - compatible: Should be: - "mediatek,mt2701-ethsys", "syscon" + - "mediatek,mt7622-ethsys", "syscon" - #clock-cells: Must be 1 The ethsys controller uses the common clk binding from diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,hifsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,hifsys.txt index beed7b594cea..f5629d64cef2 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,hifsys.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,hifsys.txt @@ -8,6 +8,7 @@ Required Properties: - compatible: Should be: - "mediatek,mt2701-hifsys", "syscon" + - "mediatek,mt7622-hifsys", "syscon" - #clock-cells: Must be 1 The hifsys controller uses the common clk binding from diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt index a3430cd96d0f..566f153f9f83 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt @@ -10,6 +10,7 @@ Required Properties: - "mediatek,mt2701-infracfg", "syscon" - "mediatek,mt2712-infracfg", "syscon" - "mediatek,mt6797-infracfg", "syscon" + - "mediatek,mt7622-infracfg", "syscon" - "mediatek,mt8135-infracfg", "syscon" - "mediatek,mt8173-infracfg", "syscon" - #clock-cells: Must be 1 diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,pciesys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,pciesys.txt new file mode 100644 index 000000000000..d5d5f1227665 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,pciesys.txt @@ -0,0 +1,22 @@ +MediaTek PCIESYS controller +============================ + +The MediaTek PCIESYS controller provides various clocks to the system. + +Required Properties: + +- compatible: Should be: + - "mediatek,mt7622-pciesys", "syscon" +- #clock-cells: Must be 1 + +The PCIESYS controller uses the common clk binding from +Documentation/devicetree/bindings/clock/clock-bindings.txt +The available clocks are defined in dt-bindings/clock/mt*-clk.h. + +Example: + +pciesys: pciesys@1a100800 { + compatible = "mediatek,mt7622-pciesys", "syscon"; + reg = <0 0x1a100800 0 0x1000>; + #clock-cells = <1>; +}; diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.txt index d9f092eb3550..fb58ca8c2770 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.txt @@ -9,6 +9,7 @@ Required Properties: - compatible: Should be one of: - "mediatek,mt2701-pericfg", "syscon" - "mediatek,mt2712-pericfg", "syscon" + - "mediatek,mt7622-pericfg", "syscon" - "mediatek,mt8135-pericfg", "syscon" - "mediatek,mt8173-pericfg", "syscon" - #clock-cells: Must be 1 diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt new file mode 100644 index 000000000000..d113b8e741f3 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt @@ -0,0 +1,22 @@ +MediaTek SGMIISYS controller +============================ + +The MediaTek SGMIISYS controller provides various clocks to the system. + +Required Properties: + +- compatible: Should be: + - "mediatek,mt7622-sgmiisys", "syscon" +- #clock-cells: Must be 1 + +The SGMIISYS controller uses the common clk binding from +Documentation/devicetree/bindings/clock/clock-bindings.txt +The available clocks are defined in dt-bindings/clock/mt*-clk.h. + +Example: + +sgmiisys: sgmiisys@1b128000 { + compatible = "mediatek,mt7622-sgmiisys", "syscon"; + reg = <0 0x1b128000 0 0x1000>; + #clock-cells = <1>; +}; diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,ssusbsys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,ssusbsys.txt new file mode 100644 index 000000000000..00760019da00 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,ssusbsys.txt @@ -0,0 +1,22 @@ +MediaTek SSUSBSYS controller +============================ + +The MediaTek SSUSBSYS controller provides various clocks to the system. + +Required Properties: + +- compatible: Should be: + - "mediatek,mt7622-ssusbsys", "syscon" +- #clock-cells: Must be 1 + +The SSUSBSYS controller uses the common clk binding from +Documentation/devicetree/bindings/clock/clock-bindings.txt +The available clocks are defined in dt-bindings/clock/mt*-clk.h. + +Example: + +ssusbsys: ssusbsys@1a000000 { + compatible = "mediatek,mt7622-ssusbsys", "syscon"; + reg = <0 0x1a000000 0 0x1000>; + #clock-cells = <1>; +}; diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,topckgen.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,topckgen.txt index 2024fc909d69..24014a7e2332 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,topckgen.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,topckgen.txt @@ -9,6 +9,7 @@ Required Properties: - "mediatek,mt2701-topckgen" - "mediatek,mt2712-topckgen", "syscon" - "mediatek,mt6797-topckgen" + - "mediatek,mt7622-topckgen" - "mediatek,mt8135-topckgen" - "mediatek,mt8173-topckgen" - #clock-cells: Must be 1 -- cgit v1.2.3 From ca5cd8c9400c7eeeda84e34fa773c6c245e65c82 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Thu, 2 Nov 2017 14:54:00 +0530 Subject: regulator: qcom_spmi: Add support for pmi8994 Document the regulators available on pmi8994 and add support for this PMIC to the SPMI PMIC regulator driver. Signed-off-by: Rajendra Nayak Signed-off-by: Mark Brown --- .../devicetree/bindings/regulator/qcom,spmi-regulator.txt | 13 +++++++++++++ drivers/regulator/qcom_spmi-regulator.c | 9 +++++++++ 2 files changed, 22 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt index 0fa3b0fac129..57d2c65899df 100644 --- a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt @@ -8,6 +8,7 @@ Qualcomm SPMI Regulators "qcom,pm8916-regulators" "qcom,pm8941-regulators" "qcom,pm8994-regulators" + "qcom,pmi8994-regulators" - interrupts: Usage: optional @@ -100,6 +101,15 @@ Qualcomm SPMI Regulators Definition: Reference to regulator supplying the input pin, as described in the data sheet. +- vdd_s1-supply: +- vdd_s2-supply: +- vdd_s3-supply: +- vdd_l1-supply: + Usage: optional (pmi8994 only) + Value type: + Definition: Reference to regulator supplying the input pin, as + described in the data sheet. + The regulator node houses sub-nodes for each regulator within the device. Each sub-node is identified using the node's name, with valid values listed for each @@ -122,6 +132,9 @@ pm8994: l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, l25, l26, l27, l28, l29, l30, l31, l32, lvs1, lvs2 +pmi8994: + s1, s2, s3, l1 + The content of each sub-node is defined by the standard binding for regulators - see regulator.txt - with additional custom properties described below: diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c index 16c5f84e06a7..9f8eb5dd2a4e 100644 --- a/drivers/regulator/qcom_spmi-regulator.c +++ b/drivers/regulator/qcom_spmi-regulator.c @@ -1619,11 +1619,20 @@ static const struct spmi_regulator_data pm8994_regulators[] = { { } }; +static const struct spmi_regulator_data pmi8994_regulators[] = { + { "s1", 0x1400, "vdd_s1", }, + { "s2", 0x1700, "vdd_s2", }, + { "s3", 0x1a00, "vdd_s3", }, + { "l1", 0x4000, "vdd_l1", }, + { } +}; + static const struct of_device_id qcom_spmi_regulator_match[] = { { .compatible = "qcom,pm8841-regulators", .data = &pm8841_regulators }, { .compatible = "qcom,pm8916-regulators", .data = &pm8916_regulators }, { .compatible = "qcom,pm8941-regulators", .data = &pm8941_regulators }, { .compatible = "qcom,pm8994-regulators", .data = &pm8994_regulators }, + { .compatible = "qcom,pmi8994-regulators", .data = &pmi8994_regulators }, { } }; MODULE_DEVICE_TABLE(of, qcom_spmi_regulator_match); -- cgit v1.2.3 From b35be415499ad257954813f8def9c84f49f1ff34 Mon Sep 17 00:00:00 2001 From: Egil Hjelmeland Date: Thu, 2 Nov 2017 10:20:58 +0100 Subject: net: dsa: lan9303: Added Documentation/networking/dsa/lan9303.txt Provide a rough overview of the state of the driver. And explain that the driver operates in two modes: bridged and port-separated. Signed-off-by: Egil Hjelmeland Signed-off-by: David S. Miller --- Documentation/networking/dsa/lan9303.txt | 37 ++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/networking/dsa/lan9303.txt (limited to 'Documentation') diff --git a/Documentation/networking/dsa/lan9303.txt b/Documentation/networking/dsa/lan9303.txt new file mode 100644 index 000000000000..ec28683d107d --- /dev/null +++ b/Documentation/networking/dsa/lan9303.txt @@ -0,0 +1,37 @@ +LAN9303 Ethernet switch driver +============================== + +The LAN9303 is a three port 10/100 ethernet switch with integrated phys for the +two external ethernet ports. The third port is an RMII/MII interface to a host +master network interface (e.g. fixed link). + + +Driver details +============== + +The driver is implemented as a DSA driver, see +Documentation/networking/dsa/dsa.txt. + +See Documentation/devicetree/bindings/net/dsa/lan9303.txt for device tree +binding. + +The LAN9303 can be managed both via MDIO and I2C, both supported by this driver. + +At startup the driver configures the device to provide two separate network +interfaces (which is the default state of a DSA device). Due to HW limitations, +no HW MAC learning takes place in this mode. + +When both user ports are joined to the same bridge, the normal HW MAC learning +is enabled. This means that unicast traffic is forwarded in HW. Broadcast and +multicast is flooded in HW. STP is also supported in this mode. The driver +support fdb/mdb operations as well, meaning IGMP snooping is supported. + +If one of the user ports leave the bridge, the ports goes back to the initial +separated operation. + + +Driver limitations +================== + + - Support for VLAN filtering is not implemented + - The HW does not support VLAN-specific fdb entries -- cgit v1.2.3 From 0962289b1cd91534f7111e763d3e6a17dcd47ecb Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 27 Oct 2017 10:34:22 +0200 Subject: irqchip/gic: Deal with broken firmware exposing only 4kB of GICv2 CPU interface There is a lot of broken firmware out there that don't really expose the information the kernel requires when it comes with dealing with GICv2: (1) Firmware that only describes the first 4kB of GICv2 (2) Firmware that describe 128kB of CPU interface, while the usable portion of the address space is between 60 and 68kB So far, we only deal with (2). But we have platforms exhibiting behaviour (1), resulting in two sub-cases: (a) The GIC is occupying 8kB, as required by the GICv2 architecture (b) It is actually spread 128kB, and this is likely to be a version of (2) This patch tries to work around both (a) and (b) by poking at the outside of the described memory region, and try to work out what is actually there. This is of course unsafe, and should only be enabled if there is no way to otherwise fix the DT provided by the firmware (we provide a "irqchip.gicv2_force_probe" option to that effect). Note that for the time being, we restrict ourselves to GICv2 implementations provided by ARM, since there I have no knowledge of an alternative implementations. This could be relaxed if such an implementation comes to light on a broken platform. Reviewed-by: Christoffer Dall Signed-off-by: Marc Zyngier --- Documentation/admin-guide/kernel-parameters.txt | 7 +++ drivers/irqchip/irq-gic.c | 71 +++++++++++++++++++++---- 2 files changed, 69 insertions(+), 9 deletions(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 05496622b4ef..3daa0a590236 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1713,6 +1713,13 @@ irqaffinity= [SMP] Set the default irq affinity mask The argument is a cpu list, as described above. + irqchip.gicv2_force_probe= + [ARM, ARM64] + Format: + Force the kernel to look for the second 4kB page + of a GICv2 controller even if the memory range + exposed by the device tree is too small. + irqfixup [HW] When an interrupt is not handled search all handlers for it. Intended to get systems with badly broken diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 651d726e8b12..f641e8e2c78d 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -1256,6 +1256,19 @@ static void gic_teardown(struct gic_chip_data *gic) #ifdef CONFIG_OF static int gic_cnt __initdata; +static bool gicv2_force_probe; + +static int __init gicv2_force_probe_cfg(char *buf) +{ + return strtobool(buf, &gicv2_force_probe); +} +early_param("irqchip.gicv2_force_probe", gicv2_force_probe_cfg); + +static bool gic_check_gicv2(void __iomem *base) +{ + u32 val = readl_relaxed(base + GIC_CPU_IDENT); + return (val & 0xff0fff) == 0x02043B; +} static bool gic_check_eoimode(struct device_node *node, void __iomem **base) { @@ -1265,20 +1278,60 @@ static bool gic_check_eoimode(struct device_node *node, void __iomem **base) if (!is_hyp_mode_available()) return false; - if (resource_size(&cpuif_res) < SZ_8K) - return false; - if (resource_size(&cpuif_res) == SZ_128K) { - u32 val_low, val_high; + if (resource_size(&cpuif_res) < SZ_8K) { + void __iomem *alt; + /* + * Check for a stupid firmware that only exposes the + * first page of a GICv2. + */ + if (!gic_check_gicv2(*base)) + return false; + if (!gicv2_force_probe) { + pr_warn("GIC: GICv2 detected, but range too small and irqchip.gicv2_force_probe not set\n"); + return false; + } + + alt = ioremap(cpuif_res.start, SZ_8K); + if (!alt) + return false; + if (!gic_check_gicv2(alt + SZ_4K)) { + /* + * The first page was that of a GICv2, and + * the second was *something*. Let's trust it + * to be a GICv2, and update the mapping. + */ + pr_warn("GIC: GICv2 at %pa, but range is too small (broken DT?), assuming 8kB\n", + &cpuif_res.start); + iounmap(*base); + *base = alt; + return true; + } + + /* + * We detected *two* initial GICv2 pages in a + * row. Could be a GICv2 aliased over two 64kB + * pages. Update the resource, map the iospace, and + * pray. + */ + iounmap(alt); + alt = ioremap(cpuif_res.start, SZ_128K); + if (!alt) + return false; + pr_warn("GIC: Aliased GICv2 at %pa, trying to find the canonical range over 128kB\n", + &cpuif_res.start); + cpuif_res.end = cpuif_res.start + SZ_128K -1; + iounmap(*base); + *base = alt; + } + if (resource_size(&cpuif_res) == SZ_128K) { /* - * Verify that we have the first 4kB of a GIC400 + * Verify that we have the first 4kB of a GICv2 * aliased over the first 64kB by checking the * GICC_IIDR register on both ends. */ - val_low = readl_relaxed(*base + GIC_CPU_IDENT); - val_high = readl_relaxed(*base + GIC_CPU_IDENT + 0xf000); - if ((val_low & 0xffff0fff) != 0x0202043B || - val_low != val_high) + if (!gic_check_gicv2(*base) || + !gic_check_gicv2(*base + 0xf000)) return false; /* -- cgit v1.2.3 From 4e4cb1b183d6e9df57f4e54c8b1a5231995da820 Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Mon, 30 Oct 2017 00:05:21 +0100 Subject: irqchip/meson-gpio: add support for Meson8 SoCs Meson8 uses the same GPIO interrupt controller IP block as the other Meson SoCs. A total of 134 pins can be spied on, which is the sum of: - 22 pins on bank GPIOX - 17 pins on bank GPIOY - 30 pins on bank GPIODV - 10 pins on bank GPIOH - 15 pins on bank GPIOZ - 7 pins on bank CARD - 19 pins on bank BOOT - 14 pins in the AO domain Acked-by: Kevin Hilman Acked-by: Rob Herring Signed-off-by: Martin Blumenstingl Signed-off-by: Marc Zyngier --- .../bindings/interrupt-controller/amlogic,meson-gpio-intc.txt | 1 + drivers/irqchip/irq-meson-gpio.c | 5 +++++ 2 files changed, 6 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt index 633e21ce4b17..a83f9a5734ca 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt @@ -10,6 +10,7 @@ number of interrupt exposed depends on the SoC. Required properties: - compatible : must have "amlogic,meson8-gpio-intc” and either + “amlogic,meson8-gpio-intc” for meson8 SoCs (S802) or “amlogic,meson8b-gpio-intc” for meson8b SoCs (S805) or “amlogic,meson-gxbb-gpio-intc” for GXBB SoCs (S905) or “amlogic,meson-gxl-gpio-intc” for GXL SoCs (S905X, S912) diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c index c7cc7e37a23c..a59bdbc0b9bb 100644 --- a/drivers/irqchip/irq-meson-gpio.c +++ b/drivers/irqchip/irq-meson-gpio.c @@ -47,6 +47,10 @@ struct meson_gpio_irq_params { unsigned int nr_hwirq; }; +static const struct meson_gpio_irq_params meson8_params = { + .nr_hwirq = 134, +}; + static const struct meson_gpio_irq_params meson8b_params = { .nr_hwirq = 119, }; @@ -60,6 +64,7 @@ static const struct meson_gpio_irq_params gxl_params = { }; static const struct of_device_id meson_irq_gpio_matches[] = { + { .compatible = "amlogic,meson8-gpio-intc", .data = &meson8_params }, { .compatible = "amlogic,meson8b-gpio-intc", .data = &meson8b_params }, { .compatible = "amlogic,meson-gxbb-gpio-intc", .data = &gxbb_params }, { .compatible = "amlogic,meson-gxl-gpio-intc", .data = &gxl_params }, -- cgit v1.2.3 From 47d3d7ac656a1ffb9d0f0d3c845663ed6fd7e78d Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Mon, 30 Oct 2017 14:16:00 -0700 Subject: ipv6: Implement limits on Hop-by-Hop and Destination options RFC 8200 (IPv6) defines Hop-by-Hop options and Destination options extension headers. Both of these carry a list of TLVs which is only limited by the maximum length of the extension header (2048 bytes). By the spec a host must process all the TLVs in these options, however these could be used as a fairly obvious denial of service attack. I think this could in fact be a significant DOS vector on the Internet, one mitigating factor might be that many FWs drop all packets with EH (and obviously this is only IPv6) so an Internet wide attack might not be so effective (yet!). By my calculation, the worse case packet with TLVs in a standard 1500 byte MTU packet that would be processed by the stack contains 1282 invidual TLVs (including pad TLVS) or 724 two byte TLVs. I wrote a quick test program that floods a whole bunch of these packets to a host and sure enough there is substantial time spent in ip6_parse_tlv. These packets contain nothing but unknown TLVS (that are ignored), TLV padding, and bogus UDP header with zero payload length. 25.38% [kernel] [k] __fib6_clean_all 21.63% [kernel] [k] ip6_parse_tlv 4.21% [kernel] [k] __local_bh_enable_ip 2.18% [kernel] [k] ip6_pol_route.isra.39 1.98% [kernel] [k] fib6_walk_continue 1.88% [kernel] [k] _raw_write_lock_bh 1.65% [kernel] [k] dst_release This patch adds configurable limits to Destination and Hop-by-Hop options. There are three limits that may be set: - Limit the number of options in a Hop-by-Hop or Destination options extension header. - Limit the byte length of a Hop-by-Hop or Destination options extension header. - Disallow unrecognized options in a Hop-by-Hop or Destination options extension header. The limits are set in corresponding sysctls: ipv6.sysctl.max_dst_opts_cnt ipv6.sysctl.max_hbh_opts_cnt ipv6.sysctl.max_dst_opts_len ipv6.sysctl.max_hbh_opts_len If a max_*_opts_cnt is less than zero then unknown TLVs are disallowed. The number of known TLVs that are allowed is the absolute value of this number. If a limit is exceeded when processing an extension header the packet is dropped. Default values are set to 8 for options counts, and set to INT_MAX for maximum length. Note the choice to limit options to 8 is an arbitrary guess (roughly based on the fact that the stack supports three HBH options and just one destination option). These limits have being proposed in draft-ietf-6man-rfc6434-bis. Tested (by Martin Lau) I tested out 1 thread (i.e. one raw_udp process). I changed the net.ipv6.max_dst_(opts|hbh)_number between 8 to 2048. With sysctls setting to 2048, the softirq% is packed to 100%. With 8, the softirq% is almost unnoticable from mpstat. v2; - Code and documention cleanup. - Change references of RFC2460 to be RFC8200. - Add reference to RFC6434-bis where the limits will be in standard. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 24 ++++++++++++ include/net/ipv6.h | 40 ++++++++++++++++++++ include/net/netns/ipv6.h | 4 ++ net/ipv6/af_inet6.c | 4 ++ net/ipv6/exthdrs.c | 67 ++++++++++++++++++++++++++++------ net/ipv6/sysctl_net_ipv6.c | 32 ++++++++++++++++ 6 files changed, 159 insertions(+), 12 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 77f4de59dc9c..e6661b205f72 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -1385,6 +1385,30 @@ mld_qrv - INTEGER Default: 2 (as specified by RFC3810 9.1) Minimum: 1 (as specified by RFC6636 4.5) +max_dst_opts_cnt - INTEGER + Maximum number of non-padding TLVs allowed in a Destination + options extension header. If this value is less than zero + then unknown options are disallowed and the number of known + TLVs allowed is the absolute value of this number. + Default: 8 + +max_hbh_opts_cnt - INTEGER + Maximum number of non-padding TLVs allowed in a Hop-by-Hop + options extension header. If this value is less than zero + then unknown options are disallowed and the number of known + TLVs allowed is the absolute value of this number. + Default: 8 + +max dst_opts_len - INTEGER + Maximum length allowed for a Destination options extension + header. + Default: INT_MAX (unlimited) + +max hbh_opts_len - INTEGER + Maximum length allowed for a Hop-by-Hop options extension + header. + Default: INT_MAX (unlimited) + IPv6 Fragmentation: ip6frag_high_thresh - INTEGER diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 3cda3b521c36..fb6d67012de6 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -51,6 +51,46 @@ #define IPV6_DEFAULT_HOPLIMIT 64 #define IPV6_DEFAULT_MCASTHOPS 1 +/* Limits on Hop-by-Hop and Destination options. + * + * Per RFC8200 there is no limit on the maximum number or lengths of options in + * Hop-by-Hop or Destination options other then the packet must fit in an MTU. + * We allow configurable limits in order to mitigate potential denial of + * service attacks. + * + * There are three limits that may be set: + * - Limit the number of options in a Hop-by-Hop or Destination options + * extension header + * - Limit the byte length of a Hop-by-Hop or Destination options extension + * header + * - Disallow unknown options + * + * The limits are expressed in corresponding sysctls: + * + * ipv6.sysctl.max_dst_opts_cnt + * ipv6.sysctl.max_hbh_opts_cnt + * ipv6.sysctl.max_dst_opts_len + * ipv6.sysctl.max_hbh_opts_len + * + * max_*_opts_cnt is the number of TLVs that are allowed for Destination + * options or Hop-by-Hop options. If the number is less than zero then unknown + * TLVs are disallowed and the number of known options that are allowed is the + * absolute value. Setting the value to INT_MAX indicates no limit. + * + * max_*_opts_len is the length limit in bytes of a Destination or + * Hop-by-Hop options extension header. Setting the value to INT_MAX + * indicates no length limit. + * + * If a limit is exceeded when processing an extension header the packet is + * silently discarded. + */ + +/* Default limits for Hop-by-Hop and Destination options */ +#define IP6_DEFAULT_MAX_DST_OPTS_CNT 8 +#define IP6_DEFAULT_MAX_HBH_OPTS_CNT 8 +#define IP6_DEFAULT_MAX_DST_OPTS_LEN INT_MAX /* No limit */ +#define IP6_DEFAULT_MAX_HBH_OPTS_LEN INT_MAX /* No limit */ + /* * Addr type * diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h index 2ea1ed341ef8..600ba1c1befc 100644 --- a/include/net/netns/ipv6.h +++ b/include/net/netns/ipv6.h @@ -37,6 +37,10 @@ struct netns_sysctl_ipv6 { int idgen_delay; int flowlabel_state_ranges; int flowlabel_reflect; + int max_dst_opts_cnt; + int max_hbh_opts_cnt; + int max_dst_opts_len; + int max_hbh_opts_len; }; struct netns_ipv6 { diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index fe5262fd6aa5..c26f71234b9c 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -810,6 +810,10 @@ static int __net_init inet6_net_init(struct net *net) net->ipv6.sysctl.idgen_retries = 3; net->ipv6.sysctl.idgen_delay = 1 * HZ; net->ipv6.sysctl.flowlabel_state_ranges = 0; + net->ipv6.sysctl.max_dst_opts_cnt = IP6_DEFAULT_MAX_DST_OPTS_CNT; + net->ipv6.sysctl.max_hbh_opts_cnt = IP6_DEFAULT_MAX_HBH_OPTS_CNT; + net->ipv6.sysctl.max_dst_opts_len = IP6_DEFAULT_MAX_DST_OPTS_LEN; + net->ipv6.sysctl.max_hbh_opts_len = IP6_DEFAULT_MAX_HBH_OPTS_LEN; atomic_set(&net->ipv6.fib6_sernum, 1); err = ipv6_init_mibs(net); diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index 9f918a770f87..83bd75713535 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -74,8 +74,20 @@ struct tlvtype_proc { /* An unknown option is detected, decide what to do */ -static bool ip6_tlvopt_unknown(struct sk_buff *skb, int optoff) +static bool ip6_tlvopt_unknown(struct sk_buff *skb, int optoff, + bool disallow_unknowns) { + if (disallow_unknowns) { + /* If unknown TLVs are disallowed by configuration + * then always silently drop packet. Note this also + * means no ICMP parameter problem is sent which + * could be a good property to mitigate a reflection DOS + * attack. + */ + + goto drop; + } + switch ((skb_network_header(skb)[optoff] & 0xC0) >> 6) { case 0: /* ignore */ return true; @@ -95,20 +107,30 @@ static bool ip6_tlvopt_unknown(struct sk_buff *skb, int optoff) return false; } +drop: kfree_skb(skb); return false; } /* Parse tlv encoded option header (hop-by-hop or destination) */ -static bool ip6_parse_tlv(const struct tlvtype_proc *procs, struct sk_buff *skb) +static bool ip6_parse_tlv(const struct tlvtype_proc *procs, + struct sk_buff *skb, + int max_count) { - const struct tlvtype_proc *curr; + int len = (skb_transport_header(skb)[1] + 1) << 3; const unsigned char *nh = skb_network_header(skb); int off = skb_network_header_len(skb); - int len = (skb_transport_header(skb)[1] + 1) << 3; + const struct tlvtype_proc *curr; + bool disallow_unknowns = false; + int tlv_count = 0; int padlen = 0; + if (unlikely(max_count < 0)) { + disallow_unknowns = true; + max_count = -max_count; + } + if (skb_transport_offset(skb) + len > skb_headlen(skb)) goto bad; @@ -149,6 +171,11 @@ static bool ip6_parse_tlv(const struct tlvtype_proc *procs, struct sk_buff *skb) default: /* Other TLV code so scan list */ if (optlen > len) goto bad; + + tlv_count++; + if (tlv_count > max_count) + goto bad; + for (curr = procs; curr->type >= 0; curr++) { if (curr->type == nh[off]) { /* type specific length/alignment @@ -159,10 +186,10 @@ static bool ip6_parse_tlv(const struct tlvtype_proc *procs, struct sk_buff *skb) break; } } - if (curr->type < 0) { - if (ip6_tlvopt_unknown(skb, off) == 0) - return false; - } + if (curr->type < 0 && + !ip6_tlvopt_unknown(skb, off, disallow_unknowns)) + return false; + padlen = 0; break; } @@ -258,23 +285,31 @@ static int ipv6_destopt_rcv(struct sk_buff *skb) __u16 dstbuf; #endif struct dst_entry *dst = skb_dst(skb); + struct net *net = dev_net(skb->dev); + int extlen; if (!pskb_may_pull(skb, skb_transport_offset(skb) + 8) || !pskb_may_pull(skb, (skb_transport_offset(skb) + ((skb_transport_header(skb)[1] + 1) << 3)))) { __IP6_INC_STATS(dev_net(dst->dev), ip6_dst_idev(dst), IPSTATS_MIB_INHDRERRORS); +fail_and_free: kfree_skb(skb); return -1; } + extlen = (skb_transport_header(skb)[1] + 1) << 3; + if (extlen > net->ipv6.sysctl.max_dst_opts_len) + goto fail_and_free; + opt->lastopt = opt->dst1 = skb_network_header_len(skb); #if IS_ENABLED(CONFIG_IPV6_MIP6) dstbuf = opt->dst1; #endif - if (ip6_parse_tlv(tlvprocdestopt_lst, skb)) { - skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3; + if (ip6_parse_tlv(tlvprocdestopt_lst, skb, + init_net.ipv6.sysctl.max_dst_opts_cnt)) { + skb->transport_header += extlen; opt = IP6CB(skb); #if IS_ENABLED(CONFIG_IPV6_MIP6) opt->nhoff = dstbuf; @@ -803,6 +838,8 @@ static const struct tlvtype_proc tlvprochopopt_lst[] = { int ipv6_parse_hopopts(struct sk_buff *skb) { struct inet6_skb_parm *opt = IP6CB(skb); + struct net *net = dev_net(skb->dev); + int extlen; /* * skb_network_header(skb) is equal to skb->data, and @@ -813,13 +850,19 @@ int ipv6_parse_hopopts(struct sk_buff *skb) if (!pskb_may_pull(skb, sizeof(struct ipv6hdr) + 8) || !pskb_may_pull(skb, (sizeof(struct ipv6hdr) + ((skb_transport_header(skb)[1] + 1) << 3)))) { +fail_and_free: kfree_skb(skb); return -1; } + extlen = (skb_transport_header(skb)[1] + 1) << 3; + if (extlen > net->ipv6.sysctl.max_hbh_opts_len) + goto fail_and_free; + opt->flags |= IP6SKB_HOPBYHOP; - if (ip6_parse_tlv(tlvprochopopt_lst, skb)) { - skb->transport_header += (skb_transport_header(skb)[1] + 1) << 3; + if (ip6_parse_tlv(tlvprochopopt_lst, skb, + init_net.ipv6.sysctl.max_hbh_opts_cnt)) { + skb->transport_header += extlen; opt = IP6CB(skb); opt->nhoff = sizeof(struct ipv6hdr); return 1; diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c index 6fbf8ae5e52c..4a2f0fd870bc 100644 --- a/net/ipv6/sysctl_net_ipv6.c +++ b/net/ipv6/sysctl_net_ipv6.c @@ -97,6 +97,34 @@ static struct ctl_table ipv6_table_template[] = { .mode = 0644, .proc_handler = proc_dointvec, }, + { + .procname = "max_dst_opts_number", + .data = &init_net.ipv6.sysctl.max_dst_opts_cnt, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec + }, + { + .procname = "max_hbh_opts_number", + .data = &init_net.ipv6.sysctl.max_hbh_opts_cnt, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec + }, + { + .procname = "max_dst_opts_length", + .data = &init_net.ipv6.sysctl.max_dst_opts_len, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec + }, + { + .procname = "max_hbh_length", + .data = &init_net.ipv6.sysctl.max_hbh_opts_len, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec + }, { } }; @@ -157,6 +185,10 @@ static int __net_init ipv6_sysctl_net_init(struct net *net) ipv6_table[7].data = &net->ipv6.sysctl.flowlabel_state_ranges; ipv6_table[8].data = &net->ipv6.sysctl.ip_nonlocal_bind; ipv6_table[9].data = &net->ipv6.sysctl.flowlabel_reflect; + ipv6_table[10].data = &net->ipv6.sysctl.max_dst_opts_cnt; + ipv6_table[11].data = &net->ipv6.sysctl.max_hbh_opts_cnt; + ipv6_table[12].data = &net->ipv6.sysctl.max_dst_opts_len; + ipv6_table[13].data = &net->ipv6.sysctl.max_hbh_opts_len; ipv6_route_table = ipv6_route_sysctl_init(net); if (!ipv6_route_table) -- cgit v1.2.3 From ddc92bec6d7d7e8a07794a8dbeade19476891b53 Mon Sep 17 00:00:00 2001 From: Stafford Horne Date: Sat, 21 Oct 2017 22:39:35 +0900 Subject: dt-bindings: openrisc: Add OpenRISC platform SoC Add devicetree binding documentation for the OpenRISC platform opencores,or1ksim. This is the main OpenRISC reference platform supporting multiple FPGA SoC's. This format is based on some of the mips binding docs as we have similar requirements. Also, update maintainers so openrisc related binding changes are visible to the openrisc team. Acked-by: Rob Herring Suggested-by: Pavel Machek Signed-off-by: Stafford Horne --- .../bindings/openrisc/opencores/or1ksim.txt | 39 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/openrisc/opencores/or1ksim.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/openrisc/opencores/or1ksim.txt b/Documentation/devicetree/bindings/openrisc/opencores/or1ksim.txt new file mode 100644 index 000000000000..4950c794ecbb --- /dev/null +++ b/Documentation/devicetree/bindings/openrisc/opencores/or1ksim.txt @@ -0,0 +1,39 @@ +OpenRISC Generic SoC +==================== + +Boards and FPGA SoC's which support the OpenRISC standard platform. The +platform essentially follows the conventions of the OpenRISC architecture +specification, however some aspects, such as the boot protocol have been defined +by the Linux port. + +Required properties +------------------- + - compatible: Must include "opencores,or1ksim" + +CPU nodes: +---------- +A "cpus" node is required. Required properties: + - #address-cells: Must be 1. + - #size-cells: Must be 0. +A CPU sub-node is also required for at least CPU 0. Since the topology may +be probed via CPS, it is not necessary to specify secondary CPUs. Required +properties: + - compatible: Must be "opencores,or1200-rtlsvn481". + - reg: CPU number. + - clock-frequency: The CPU clock frequency in Hz. +Example: + cpus { + #address-cells = <1>; + #size-cells = <0>; + cpu@0 { + compatible = "opencores,or1200-rtlsvn481"; + reg = <0>; + clock-frequency = <20000000>; + }; + }; + + +Boot protocol +------------- +The bootloader may pass the following arguments to the kernel: + - r3: address of a flattened device-tree blob or 0x0. diff --git a/MAINTAINERS b/MAINTAINERS index 4e2b720ca661..bcb7e2525f54 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10031,6 +10031,7 @@ T: git git://github.com/openrisc/linux.git L: openrisc@lists.librecores.org W: http://openrisc.io S: Maintained +F: Documentation/devicetree/bindings/openrisc/ F: Documentation/openrisc/ F: arch/openrisc/ F: drivers/irqchip/irq-or1k-* -- cgit v1.2.3 From fab8be88ac0478b0157859f74fad5088c292356b Mon Sep 17 00:00:00 2001 From: Stafford Horne Date: Thu, 7 Sep 2017 22:55:18 +0900 Subject: dt-bindings: add openrisc to vendor prefixes list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add OpenRISC.io to vendor prefixes. This is reserved for softcores developed by the OpenRISC community. The OpenRISC community has separated from OpenCores.org requiring a new prefix. Reviewed-by: Andreas Färber Acked-by: Rob Herring Signed-off-by: Stafford Horne --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 1afd298eddd7..b1eeca851d6f 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -246,6 +246,7 @@ onion Onion Corporation onnn ON Semiconductor Corp. ontat On Tat Industrial Company opencores OpenCores.org +openrisc OpenRISC.io option Option NV ORCL Oracle Corporation ortustech Ortus Technology Co., Ltd. -- cgit v1.2.3 From 9b54470afd836278a7e6f0f08194e2e2dca4b6eb Mon Sep 17 00:00:00 2001 From: Stafford Horne Date: Mon, 30 Oct 2017 21:38:35 +0900 Subject: irqchip: add initial support for ompic IPI driver for the Open Multi-Processor Interrupt Controller (ompic) as described in the Multi-core support section of the OpenRISC 1.2 architecture specification: https://github.com/openrisc/doc/raw/master/openrisc-arch-1.2-rev0.pdf Each OpenRISC core contains a full interrupt controller which is used in the SMP architecture for interrupt balancing. This IPI device, the ompic, is the only external device required for enabling SMP on OpenRISC. Pending ops are stored in a memory bit mask which can allow multiple pending operations to be set and serviced at a time. This is mostly borrowed from the alpha IPI implementation. Reviewed-by: Marc Zyngier Acked-by: Rob Herring Signed-off-by: Stefan Kristiansson [shorne@gmail.com: converted ops to bitmask, wrote commit message] Signed-off-by: Stafford Horne --- .../interrupt-controller/openrisc,ompic.txt | 22 +++ MAINTAINERS | 1 + arch/openrisc/Kconfig | 1 + drivers/irqchip/Kconfig | 3 + drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-ompic.c | 202 +++++++++++++++++++++ 6 files changed, 230 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/openrisc,ompic.txt create mode 100644 drivers/irqchip/irq-ompic.c (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/interrupt-controller/openrisc,ompic.txt b/Documentation/devicetree/bindings/interrupt-controller/openrisc,ompic.txt new file mode 100644 index 000000000000..caec07cc7149 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/openrisc,ompic.txt @@ -0,0 +1,22 @@ +Open Multi-Processor Interrupt Controller + +Required properties: + +- compatible : This should be "openrisc,ompic" +- reg : Specifies base physical address and size of the register space. The + size is based on the number of cores the controller has been configured + to handle, this should be set to 8 bytes per cpu core. +- interrupt-controller : Identifies the node as an interrupt controller. +- #interrupt-cells : This should be set to 0 as this will not be an irq + parent. +- interrupts : Specifies the interrupt line to which the ompic is wired. + +Example: + +ompic: interrupt-controller@98000000 { + compatible = "openrisc,ompic"; + reg = <0x98000000 16>; + interrupt-controller; + #interrupt-cells = <0>; + interrupts = <1>; +}; diff --git a/MAINTAINERS b/MAINTAINERS index bcb7e2525f54..bb129d5f0d3a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10034,6 +10034,7 @@ S: Maintained F: Documentation/devicetree/bindings/openrisc/ F: Documentation/openrisc/ F: arch/openrisc/ +F: drivers/irqchip/irq-ompic.c F: drivers/irqchip/irq-or1k-* OPENVSWITCH diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index b49acda5e8f4..34eb4e90f56c 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -30,6 +30,7 @@ config OPENRISC select NO_BOOTMEM select ARCH_USE_QUEUED_SPINLOCKS select ARCH_USE_QUEUED_RWLOCKS + select OMPIC if SMP config CPU_BIG_ENDIAN def_bool y diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index 9d8a1dd2e2c2..a2ca82f6c2dd 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -151,6 +151,9 @@ config CLPS711X_IRQCHIP select SPARSE_IRQ default y +config OMPIC + bool + config OR1K_PIC bool select IRQ_DOMAIN diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile index 845abc107ad5..771f8e7f46f8 100644 --- a/drivers/irqchip/Makefile +++ b/drivers/irqchip/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_DW_APB_ICTL) += irq-dw-apb-ictl.o obj-$(CONFIG_METAG) += irq-metag-ext.o obj-$(CONFIG_METAG_PERFCOUNTER_IRQS) += irq-metag.o obj-$(CONFIG_CLPS711X_IRQCHIP) += irq-clps711x.o +obj-$(CONFIG_OMPIC) += irq-ompic.o obj-$(CONFIG_OR1K_PIC) += irq-or1k-pic.o obj-$(CONFIG_ORION_IRQCHIP) += irq-orion.o obj-$(CONFIG_OMAP_IRQCHIP) += irq-omap-intc.o diff --git a/drivers/irqchip/irq-ompic.c b/drivers/irqchip/irq-ompic.c new file mode 100644 index 000000000000..cf6d0c455518 --- /dev/null +++ b/drivers/irqchip/irq-ompic.c @@ -0,0 +1,202 @@ +/* + * Open Multi-Processor Interrupt Controller driver + * + * Copyright (C) 2014 Stefan Kristiansson + * Copyright (C) 2017 Stafford Horne + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + * + * The ompic device handles IPI communication between cores in multi-core + * OpenRISC systems. + * + * Registers + * + * For each CPU the ompic has 2 registers. The control register for sending + * and acking IPIs and the status register for receiving IPIs. The register + * layouts are as follows: + * + * Control register + * +---------+---------+----------+---------+ + * | 31 | 30 | 29 .. 16 | 15 .. 0 | + * ----------+---------+----------+---------- + * | IRQ ACK | IRQ GEN | DST CORE | DATA | + * +---------+---------+----------+---------+ + * + * Status register + * +----------+-------------+----------+---------+ + * | 31 | 30 | 29 .. 16 | 15 .. 0 | + * -----------+-------------+----------+---------+ + * | Reserved | IRQ Pending | SRC CORE | DATA | + * +----------+-------------+----------+---------+ + * + * Architecture + * + * - The ompic generates a level interrupt to the CPU PIC when a message is + * ready. Messages are delivered via the memory bus. + * - The ompic does not have any interrupt input lines. + * - The ompic is wired to the same irq line on each core. + * - Devices are wired to the same irq line on each core. + * + * +---------+ +---------+ + * | CPU | | CPU | + * | Core 0 |<==\ (memory access) /==>| Core 1 | + * | [ PIC ]| | | | [ PIC ]| + * +----^-^--+ | | +----^-^--+ + * | | v v | | + * <====|=|=================================|=|==> (memory bus) + * | | ^ ^ | | + * (ipi | +------|---------+--------|-------|-+ (device irq) + * irq | | | | | + * core0)| +------|---------|--------|-------+ (ipi irq core1) + * | | | | | + * +----o-o-+ | +--------+ | + * | ompic |<===/ | Device |<===/ + * | IPI | +--------+ + * +--------+* + * + */ + +#include +#include +#include +#include +#include +#include +#include + +#include + +#define OMPIC_CPUBYTES 8 +#define OMPIC_CTRL(cpu) (0x0 + (cpu * OMPIC_CPUBYTES)) +#define OMPIC_STAT(cpu) (0x4 + (cpu * OMPIC_CPUBYTES)) + +#define OMPIC_CTRL_IRQ_ACK (1 << 31) +#define OMPIC_CTRL_IRQ_GEN (1 << 30) +#define OMPIC_CTRL_DST(cpu) (((cpu) & 0x3fff) << 16) + +#define OMPIC_STAT_IRQ_PENDING (1 << 30) + +#define OMPIC_DATA(x) ((x) & 0xffff) + +DEFINE_PER_CPU(unsigned long, ops); + +static void __iomem *ompic_base; + +static inline u32 ompic_readreg(void __iomem *base, loff_t offset) +{ + return ioread32be(base + offset); +} + +static void ompic_writereg(void __iomem *base, loff_t offset, u32 data) +{ + iowrite32be(data, base + offset); +} + +static void ompic_raise_softirq(const struct cpumask *mask, + unsigned int ipi_msg) +{ + unsigned int dst_cpu; + unsigned int src_cpu = smp_processor_id(); + + for_each_cpu(dst_cpu, mask) { + set_bit(ipi_msg, &per_cpu(ops, dst_cpu)); + + /* + * On OpenRISC the atomic set_bit() call implies a memory + * barrier. Otherwise we would need: smp_wmb(); paired + * with the read in ompic_ipi_handler. + */ + + ompic_writereg(ompic_base, OMPIC_CTRL(src_cpu), + OMPIC_CTRL_IRQ_GEN | + OMPIC_CTRL_DST(dst_cpu) | + OMPIC_DATA(1)); + } +} + +static irqreturn_t ompic_ipi_handler(int irq, void *dev_id) +{ + unsigned int cpu = smp_processor_id(); + unsigned long *pending_ops = &per_cpu(ops, cpu); + unsigned long ops; + + ompic_writereg(ompic_base, OMPIC_CTRL(cpu), OMPIC_CTRL_IRQ_ACK); + while ((ops = xchg(pending_ops, 0)) != 0) { + + /* + * On OpenRISC the atomic xchg() call implies a memory + * barrier. Otherwise we may need an smp_rmb(); paired + * with the write in ompic_raise_softirq. + */ + + do { + unsigned long ipi_msg; + + ipi_msg = __ffs(ops); + ops &= ~(1UL << ipi_msg); + + handle_IPI(ipi_msg); + } while (ops); + } + + return IRQ_HANDLED; +} + +static int __init ompic_of_init(struct device_node *node, + struct device_node *parent) +{ + struct resource res; + int irq; + int ret; + + /* Validate the DT */ + if (ompic_base) { + pr_err("ompic: duplicate ompic's are not supported"); + return -EEXIST; + } + + if (of_address_to_resource(node, 0, &res)) { + pr_err("ompic: reg property requires an address and size"); + return -EINVAL; + } + + if (resource_size(&res) < (num_possible_cpus() * OMPIC_CPUBYTES)) { + pr_err("ompic: reg size, currently %d must be at least %d", + resource_size(&res), + (num_possible_cpus() * OMPIC_CPUBYTES)); + return -EINVAL; + } + + /* Setup the device */ + ompic_base = ioremap(res.start, resource_size(&res)); + if (IS_ERR(ompic_base)) { + pr_err("ompic: unable to map registers"); + return PTR_ERR(ompic_base); + } + + irq = irq_of_parse_and_map(node, 0); + if (irq <= 0) { + pr_err("ompic: unable to parse device irq"); + ret = -EINVAL; + goto out_unmap; + } + + ret = request_irq(irq, ompic_ipi_handler, IRQF_PERCPU, + "ompic_ipi", NULL); + if (ret) + goto out_irq_disp; + + set_smp_cross_call(ompic_raise_softirq); + + return 0; + +out_irq_disp: + irq_dispose_mapping(irq); +out_unmap: + iounmap(ompic_base); + ompic_base = NULL; + return ret; +} +IRQCHIP_DECLARE(ompic, "openrisc,ompic", ompic_of_init); -- cgit v1.2.3 From e16e437024abdbb8d08d8371fb2d9c99522df136 Mon Sep 17 00:00:00 2001 From: "Bird, Timothy" Date: Thu, 2 Nov 2017 20:30:46 +0000 Subject: Documentation: Add Tim Bird to list of enforcement statement endorsers Add my name to the list. Signed-off-by: Tim Bird Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index ce2c5130d37f..d03b1a419dd6 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -61,6 +61,7 @@ we might work for today, have in the past, or will in the future. - Felipe Balbi - Arnd Bergmann - Ard Biesheuvel + - Tim Bird - Paolo Bonzini - Christian Borntraeger - Mark Brown (Linaro) -- cgit v1.2.3 From aba973c69e3658e3190d8983eed7dddd3c44dd1e Mon Sep 17 00:00:00 2001 From: Gilad Ben-Yossef Date: Wed, 18 Oct 2017 08:00:52 +0100 Subject: crypto: doc - adapt api sample to use async. op wait The code sample is waiting for an async. crypto op completion. Adapt sample to use the new generic infrastructure to do the same. This also fixes a possible data coruption bug created by the use of wait_for_completion_interruptible() without dealing correctly with an interrupt aborting the wait prior to the async op finishing. Signed-off-by: Gilad Ben-Yossef Signed-off-by: Herbert Xu --- Documentation/crypto/api-samples.rst | 52 +++++++----------------------------- 1 file changed, 10 insertions(+), 42 deletions(-) (limited to 'Documentation') diff --git a/Documentation/crypto/api-samples.rst b/Documentation/crypto/api-samples.rst index 2531948db89f..006827e30d06 100644 --- a/Documentation/crypto/api-samples.rst +++ b/Documentation/crypto/api-samples.rst @@ -7,59 +7,27 @@ Code Example For Symmetric Key Cipher Operation :: - struct tcrypt_result { - struct completion completion; - int err; - }; - /* tie all data structures together */ struct skcipher_def { struct scatterlist sg; struct crypto_skcipher *tfm; struct skcipher_request *req; - struct tcrypt_result result; + struct crypto_wait wait; }; - /* Callback function */ - static void test_skcipher_cb(struct crypto_async_request *req, int error) - { - struct tcrypt_result *result = req->data; - - if (error == -EINPROGRESS) - return; - result->err = error; - complete(&result->completion); - pr_info("Encryption finished successfully\n"); - } - /* Perform cipher operation */ static unsigned int test_skcipher_encdec(struct skcipher_def *sk, int enc) { - int rc = 0; + int rc; if (enc) - rc = crypto_skcipher_encrypt(sk->req); + rc = crypto_wait_req(crypto_skcipher_encrypt(sk->req), &sk->wait); else - rc = crypto_skcipher_decrypt(sk->req); - - switch (rc) { - case 0: - break; - case -EINPROGRESS: - case -EBUSY: - rc = wait_for_completion_interruptible( - &sk->result.completion); - if (!rc && !sk->result.err) { - reinit_completion(&sk->result.completion); - break; - } - default: - pr_info("skcipher encrypt returned with %d result %d\n", - rc, sk->result.err); - break; - } - init_completion(&sk->result.completion); + rc = crypto_wait_req(crypto_skcipher_decrypt(sk->req), &sk->wait); + + if (rc) + pr_info("skcipher encrypt returned with result %d\n", rc); return rc; } @@ -89,8 +57,8 @@ Code Example For Symmetric Key Cipher Operation } skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - test_skcipher_cb, - &sk.result); + crypto_req_done, + &sk.wait); /* AES 256 with random key */ get_random_bytes(&key, 32); @@ -122,7 +90,7 @@ Code Example For Symmetric Key Cipher Operation /* We encrypt one block */ sg_init_one(&sk.sg, scratchpad, 16); skcipher_request_set_crypt(req, &sk.sg, &sk.sg, 16, ivdata); - init_completion(&sk.result.completion); + crypto_init_wait(&sk.wait); /* encrypt data */ ret = test_skcipher_encdec(&sk, 1); -- cgit v1.2.3 From 43994d824e8443263dc98b151e6326bf677be52e Mon Sep 17 00:00:00 2001 From: Dave Martin Date: Tue, 31 Oct 2017 15:51:19 +0000 Subject: arm64/sve: Detect SVE and activate runtime support This patch enables detection of hardware SVE support via the cpufeatures framework, and reports its presence to the kernel and userspace via the new ARM64_SVE cpucap and HWCAP_SVE hwcap respectively. Userspace can also detect SVE using ID_AA64PFR0_EL1, using the cpufeatures MRS emulation. When running on hardware that supports SVE, this enables runtime kernel support for SVE, and allows user tasks to execute SVE instructions and make of the of the SVE-specific user/kernel interface extensions implemented by this series. Signed-off-by: Dave Martin Reviewed-by: Suzuki K Poulose Reviewed-by: Catalin Marinas Signed-off-by: Will Deacon --- Documentation/arm64/cpu-feature-registers.txt | 6 +++++- Documentation/arm64/elf_hwcaps.txt | 4 ++++ arch/arm64/include/asm/cpucaps.h | 3 ++- arch/arm64/include/asm/cpufeature.h | 3 ++- arch/arm64/include/uapi/asm/hwcap.h | 1 + arch/arm64/kernel/cpufeature.c | 17 +++++++++++++++++ arch/arm64/kernel/cpuinfo.c | 1 + arch/arm64/kernel/entry.S | 7 ++++--- 8 files changed, 36 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/arm64/cpu-feature-registers.txt b/Documentation/arm64/cpu-feature-registers.txt index 011ddfc1e570..bd9b3faab2c4 100644 --- a/Documentation/arm64/cpu-feature-registers.txt +++ b/Documentation/arm64/cpu-feature-registers.txt @@ -142,7 +142,11 @@ infrastructure: x--------------------------------------------------x | Name | bits | visible | |--------------------------------------------------| - | RES0 | [63-28] | n | + | RES0 | [63-36] | n | + |--------------------------------------------------| + | SVE | [35-32] | y | + |--------------------------------------------------| + | RES0 | [31-28] | n | |--------------------------------------------------| | GIC | [27-24] | n | |--------------------------------------------------| diff --git a/Documentation/arm64/elf_hwcaps.txt b/Documentation/arm64/elf_hwcaps.txt index 0ba180522e3c..89edba12a9e0 100644 --- a/Documentation/arm64/elf_hwcaps.txt +++ b/Documentation/arm64/elf_hwcaps.txt @@ -154,3 +154,7 @@ HWCAP_ASIMDDP HWCAP_SHA512 Functionality implied by ID_AA64ISAR0_EL1.SHA2 == 0b0002. + +HWCAP_SVE + + Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001. diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h index 8da621627d7c..2ff7c5e8efab 100644 --- a/arch/arm64/include/asm/cpucaps.h +++ b/arch/arm64/include/asm/cpucaps.h @@ -40,7 +40,8 @@ #define ARM64_WORKAROUND_858921 19 #define ARM64_WORKAROUND_CAVIUM_30115 20 #define ARM64_HAS_DCPOP 21 +#define ARM64_SVE 22 -#define ARM64_NCAPS 22 +#define ARM64_NCAPS 23 #endif /* __ASM_CPUCAPS_H */ diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 9b27e8c10086..ac67cfc2585a 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -273,7 +273,8 @@ static inline bool system_uses_ttbr0_pan(void) static inline bool system_supports_sve(void) { - return false; + return IS_ENABLED(CONFIG_ARM64_SVE) && + cpus_have_const_cap(ARM64_SVE); } /* diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h index a4bad90a3fa3..622941098779 100644 --- a/arch/arm64/include/uapi/asm/hwcap.h +++ b/arch/arm64/include/uapi/asm/hwcap.h @@ -41,5 +41,6 @@ #define HWCAP_SM4 (1 << 19) #define HWCAP_ASIMDDP (1 << 20) #define HWCAP_SHA512 (1 << 21) +#define HWCAP_SVE (1 << 22) #endif /* _UAPI__ASM_HWCAP_H */ diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 036ad9d1b442..4cb2782f55a1 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -145,6 +145,7 @@ static const struct arm64_ftr_bits ftr_id_aa64isar1[] = { }; static const struct arm64_ftr_bits ftr_id_aa64pfr0[] = { + ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_SVE_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_GIC_SHIFT, 4, 0), S_ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_ASIMD_SHIFT, 4, ID_AA64PFR0_ASIMD_NI), S_ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_FP_SHIFT, 4, ID_AA64PFR0_FP_NI), @@ -948,6 +949,19 @@ static const struct arm64_cpu_capabilities arm64_features[] = { .min_field_value = 1, }, #endif +#ifdef CONFIG_ARM64_SVE + { + .desc = "Scalable Vector Extension", + .capability = ARM64_SVE, + .def_scope = SCOPE_SYSTEM, + .sys_reg = SYS_ID_AA64PFR0_EL1, + .sign = FTR_UNSIGNED, + .field_pos = ID_AA64PFR0_SVE_SHIFT, + .min_field_value = ID_AA64PFR0_SVE, + .matches = has_cpuid_feature, + .enable = sve_kernel_enable, + }, +#endif /* CONFIG_ARM64_SVE */ {}, }; @@ -985,6 +999,9 @@ static const struct arm64_cpu_capabilities arm64_elf_hwcaps[] = { HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_JSCVT_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_JSCVT), HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_FCMA_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_FCMA), HWCAP_CAP(SYS_ID_AA64ISAR1_EL1, ID_AA64ISAR1_LRCPC_SHIFT, FTR_UNSIGNED, 1, CAP_HWCAP, HWCAP_LRCPC), +#ifdef CONFIG_ARM64_SVE + HWCAP_CAP(SYS_ID_AA64PFR0_EL1, ID_AA64PFR0_SVE_SHIFT, FTR_UNSIGNED, ID_AA64PFR0_SVE, CAP_HWCAP, HWCAP_SVE), +#endif {}, }; diff --git a/arch/arm64/kernel/cpuinfo.c b/arch/arm64/kernel/cpuinfo.c index 58da504be36e..1e2554543506 100644 --- a/arch/arm64/kernel/cpuinfo.c +++ b/arch/arm64/kernel/cpuinfo.c @@ -75,6 +75,7 @@ static const char *const hwcap_str[] = { "sm4", "asimddp", "sha512", + "sve", NULL }; diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index a989e234dc32..6d14b8f29b5f 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -867,9 +867,10 @@ el0_svc: mov wscno, w8 // syscall number in w8 mov wsc_nr, #__NR_syscalls -#ifndef CONFIG_ARM64_SVE +#ifdef CONFIG_ARM64_SVE +alternative_if_not ARM64_SVE b el0_svc_naked -#else +alternative_else_nop_endif tbz x16, #TIF_SVE, el0_svc_naked // Skip unless TIF_SVE set: bic x16, x16, #_TIF_SVE // discard SVE state str x16, [tsk, #TSK_TI_FLAGS] @@ -884,7 +885,7 @@ el0_svc: mrs x9, cpacr_el1 bic x9, x9, #CPACR_EL1_ZEN_EL0EN // disable SVE for el0 msr cpacr_el1, x9 // synchronised by eret to el0 -#endif /* CONFIG_ARM64_SVE */ +#endif el0_svc_naked: // compat entry point stp x0, xscno, [sp, #S_ORIG_X0] // save the original x0 and syscall number -- cgit v1.2.3 From ce6990813f15f4cabadf325791e35bd4af8152f5 Mon Sep 17 00:00:00 2001 From: Dave Martin Date: Tue, 31 Oct 2017 15:51:20 +0000 Subject: arm64/sve: Add documentation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch adds basic documentation of the user/kernel interface provided by the for SVE. Signed-off-by: Dave Martin Reviewed-by: Catalin Marinas Cc: Alan Hayward Cc: Alex Bennée Cc: Mark Rutland Cc: Michael Kerrisk Cc: Szabolcs Nagy Cc: linux-api@vger.kernel.org Signed-off-by: Will Deacon --- Documentation/arm64/sve.txt | 508 +++++++++++++++++++++++++++++++ arch/arm64/include/uapi/asm/sigcontext.h | 3 + 2 files changed, 511 insertions(+) create mode 100644 Documentation/arm64/sve.txt (limited to 'Documentation') diff --git a/Documentation/arm64/sve.txt b/Documentation/arm64/sve.txt new file mode 100644 index 000000000000..f128f736b4a5 --- /dev/null +++ b/Documentation/arm64/sve.txt @@ -0,0 +1,508 @@ + Scalable Vector Extension support for AArch64 Linux + =================================================== + +Author: Dave Martin +Date: 4 August 2017 + +This document outlines briefly the interface provided to userspace by Linux in +order to support use of the ARM Scalable Vector Extension (SVE). + +This is an outline of the most important features and issues only and not +intended to be exhaustive. + +This document does not aim to describe the SVE architecture or programmer's +model. To aid understanding, a minimal description of relevant programmer's +model features for SVE is included in Appendix A. + + +1. General +----------- + +* SVE registers Z0..Z31, P0..P15 and FFR and the current vector length VL, are + tracked per-thread. + +* The presence of SVE is reported to userspace via HWCAP_SVE in the aux vector + AT_HWCAP entry. Presence of this flag implies the presence of the SVE + instructions and registers, and the Linux-specific system interfaces + described in this document. SVE is reported in /proc/cpuinfo as "sve". + +* Support for the execution of SVE instructions in userspace can also be + detected by reading the CPU ID register ID_AA64PFR0_EL1 using an MRS + instruction, and checking that the value of the SVE field is nonzero. [3] + + It does not guarantee the presence of the system interfaces described in the + following sections: software that needs to verify that those interfaces are + present must check for HWCAP_SVE instead. + +* Debuggers should restrict themselves to interacting with the target via the + NT_ARM_SVE regset. The recommended way of detecting support for this regset + is to connect to a target process first and then attempt a + ptrace(PTRACE_GETREGSET, pid, NT_ARM_SVE, &iov). + + +2. Vector length terminology +----------------------------- + +The size of an SVE vector (Z) register is referred to as the "vector length". + +To avoid confusion about the units used to express vector length, the kernel +adopts the following conventions: + +* Vector length (VL) = size of a Z-register in bytes + +* Vector quadwords (VQ) = size of a Z-register in units of 128 bits + +(So, VL = 16 * VQ.) + +The VQ convention is used where the underlying granularity is important, such +as in data structure definitions. In most other situations, the VL convention +is used. This is consistent with the meaning of the "VL" pseudo-register in +the SVE instruction set architecture. + + +3. System call behaviour +------------------------- + +* On syscall, V0..V31 are preserved (as without SVE). Thus, bits [127:0] of + Z0..Z31 are preserved. All other bits of Z0..Z31, and all of P0..P15 and FFR + become unspecified on return from a syscall. + +* The SVE registers are not used to pass arguments to or receive results from + any syscall. + +* In practice the affected registers/bits will be preserved or will be replaced + with zeros on return from a syscall, but userspace should not make + assumptions about this. The kernel behaviour may vary on a case-by-case + basis. + +* All other SVE state of a thread, including the currently configured vector + length, the state of the PR_SVE_VL_INHERIT flag, and the deferred vector + length (if any), is preserved across all syscalls, subject to the specific + exceptions for execve() described in section 6. + + In particular, on return from a fork() or clone(), the parent and new child + process or thread share identical SVE configuration, matching that of the + parent before the call. + + +4. Signal handling +------------------- + +* A new signal frame record sve_context encodes the SVE registers on signal + delivery. [1] + +* This record is supplementary to fpsimd_context. The FPSR and FPCR registers + are only present in fpsimd_context. For convenience, the content of V0..V31 + is duplicated between sve_context and fpsimd_context. + +* The signal frame record for SVE always contains basic metadata, in particular + the thread's vector length (in sve_context.vl). + +* The SVE registers may or may not be included in the record, depending on + whether the registers are live for the thread. The registers are present if + and only if: + sve_context.head.size >= SVE_SIG_CONTEXT_SIZE(sve_vq_from_vl(sve_context.vl)). + +* If the registers are present, the remainder of the record has a vl-dependent + size and layout. Macros SVE_SIG_* are defined [1] to facilitate access to + the members. + +* If the SVE context is too big to fit in sigcontext.__reserved[], then extra + space is allocated on the stack, an extra_context record is written in + __reserved[] referencing this space. sve_context is then written in the + extra space. Refer to [1] for further details about this mechanism. + + +5. Signal return +----------------- + +When returning from a signal handler: + +* If there is no sve_context record in the signal frame, or if the record is + present but contains no register data as desribed in the previous section, + then the SVE registers/bits become non-live and take unspecified values. + +* If sve_context is present in the signal frame and contains full register + data, the SVE registers become live and are populated with the specified + data. However, for backward compatibility reasons, bits [127:0] of Z0..Z31 + are always restored from the corresponding members of fpsimd_context.vregs[] + and not from sve_context. The remaining bits are restored from sve_context. + +* Inclusion of fpsimd_context in the signal frame remains mandatory, + irrespective of whether sve_context is present or not. + +* The vector length cannot be changed via signal return. If sve_context.vl in + the signal frame does not match the current vector length, the signal return + attempt is treated as illegal, resulting in a forced SIGSEGV. + + +6. prctl extensions +-------------------- + +Some new prctl() calls are added to allow programs to manage the SVE vector +length: + +prctl(PR_SVE_SET_VL, unsigned long arg) + + Sets the vector length of the calling thread and related flags, where + arg == vl | flags. Other threads of the calling process are unaffected. + + vl is the desired vector length, where sve_vl_valid(vl) must be true. + + flags: + + PR_SVE_SET_VL_INHERIT + + Inherit the current vector length across execve(). Otherwise, the + vector length is reset to the system default at execve(). (See + Section 9.) + + PR_SVE_SET_VL_ONEXEC + + Defer the requested vector length change until the next execve() + performed by this thread. + + The effect is equivalent to implicit exceution of the following + call immediately after the next execve() (if any) by the thread: + + prctl(PR_SVE_SET_VL, arg & ~PR_SVE_SET_VL_ONEXEC) + + This allows launching of a new program with a different vector + length, while avoiding runtime side effects in the caller. + + + Without PR_SVE_SET_VL_ONEXEC, the requested change takes effect + immediately. + + + Return value: a nonnegative on success, or a negative value on error: + EINVAL: SVE not supported, invalid vector length requested, or + invalid flags. + + + On success: + + * Either the calling thread's vector length or the deferred vector length + to be applied at the next execve() by the thread (dependent on whether + PR_SVE_SET_VL_ONEXEC is present in arg), is set to the largest value + supported by the system that is less than or equal to vl. If vl == + SVE_VL_MAX, the value set will be the largest value supported by the + system. + + * Any previously outstanding deferred vector length change in the calling + thread is cancelled. + + * The returned value describes the resulting configuration, encoded as for + PR_SVE_GET_VL. The vector length reported in this value is the new + current vector length for this thread if PR_SVE_SET_VL_ONEXEC was not + present in arg; otherwise, the reported vector length is the deferred + vector length that will be applied at the next execve() by the calling + thread. + + * Changing the vector length causes all of P0..P15, FFR and all bits of + Z0..V31 except for Z0 bits [127:0] .. Z31 bits [127:0] to become + unspecified. Calling PR_SVE_SET_VL with vl equal to the thread's current + vector length, or calling PR_SVE_SET_VL with the PR_SVE_SET_VL_ONEXEC + flag, does not constitute a change to the vector length for this purpose. + + +prctl(PR_SVE_GET_VL) + + Gets the vector length of the calling thread. + + The following flag may be OR-ed into the result: + + PR_SVE_SET_VL_INHERIT + + Vector length will be inherited across execve(). + + There is no way to determine whether there is an outstanding deferred + vector length change (which would only normally be the case between a + fork() or vfork() and the corresponding execve() in typical use). + + To extract the vector length from the result, and it with + PR_SVE_VL_LEN_MASK. + + Return value: a nonnegative value on success, or a negative value on error: + EINVAL: SVE not supported. + + +7. ptrace extensions +--------------------- + +* A new regset NT_ARM_SVE is defined for use with PTRACE_GETREGSET and + PTRACE_SETREGSET. + + Refer to [2] for definitions. + +The regset data starts with struct user_sve_header, containing: + + size + + Size of the complete regset, in bytes. + This depends on vl and possibly on other things in the future. + + If a call to PTRACE_GETREGSET requests less data than the value of + size, the caller can allocate a larger buffer and retry in order to + read the complete regset. + + max_size + + Maximum size in bytes that the regset can grow to for the target + thread. The regset won't grow bigger than this even if the target + thread changes its vector length etc. + + vl + + Target thread's current vector length, in bytes. + + max_vl + + Maximum possible vector length for the target thread. + + flags + + either + + SVE_PT_REGS_FPSIMD + + SVE registers are not live (GETREGSET) or are to be made + non-live (SETREGSET). + + The payload is of type struct user_fpsimd_state, with the same + meaning as for NT_PRFPREG, starting at offset + SVE_PT_FPSIMD_OFFSET from the start of user_sve_header. + + Extra data might be appended in the future: the size of the + payload should be obtained using SVE_PT_FPSIMD_SIZE(vq, flags). + + vq should be obtained using sve_vq_from_vl(vl). + + or + + SVE_PT_REGS_SVE + + SVE registers are live (GETREGSET) or are to be made live + (SETREGSET). + + The payload contains the SVE register data, starting at offset + SVE_PT_SVE_OFFSET from the start of user_sve_header, and with + size SVE_PT_SVE_SIZE(vq, flags); + + ... OR-ed with zero or more of the following flags, which have the same + meaning and behaviour as the corresponding PR_SET_VL_* flags: + + SVE_PT_VL_INHERIT + + SVE_PT_VL_ONEXEC (SETREGSET only). + +* The effects of changing the vector length and/or flags are equivalent to + those documented for PR_SVE_SET_VL. + + The caller must make a further GETREGSET call if it needs to know what VL is + actually set by SETREGSET, unless is it known in advance that the requested + VL is supported. + +* In the SVE_PT_REGS_SVE case, the size and layout of the payload depends on + the header fields. The SVE_PT_SVE_*() macros are provided to facilitate + access to the members. + +* In either case, for SETREGSET it is permissible to omit the payload, in which + case only the vector length and flags are changed (along with any + consequences of those changes). + +* For SETREGSET, if an SVE_PT_REGS_SVE payload is present and the + requested VL is not supported, the effect will be the same as if the + payload were omitted, except that an EIO error is reported. No + attempt is made to translate the payload data to the correct layout + for the vector length actually set. The thread's FPSIMD state is + preserved, but the remaining bits of the SVE registers become + unspecified. It is up to the caller to translate the payload layout + for the actual VL and retry. + +* The effect of writing a partial, incomplete payload is unspecified. + + +8. ELF coredump extensions +--------------------------- + +* A NT_ARM_SVE note will be added to each coredump for each thread of the + dumped process. The contents will be equivalent to the data that would have + been read if a PTRACE_GETREGSET of NT_ARM_SVE were executed for each thread + when the coredump was generated. + + +9. System runtime configuration +-------------------------------- + +* To mitigate the ABI impact of expansion of the signal frame, a policy + mechanism is provided for administrators, distro maintainers and developers + to set the default vector length for userspace processes: + +/proc/sys/abi/sve_default_vector_length + + Writing the text representation of an integer to this file sets the system + default vector length to the specified value, unless the value is greater + than the maximum vector length supported by the system in which case the + default vector length is set to that maximum. + + The result can be determined by reopening the file and reading its + contents. + + At boot, the default vector length is initially set to 64 or the maximum + supported vector length, whichever is smaller. This determines the initial + vector length of the init process (PID 1). + + Reading this file returns the current system default vector length. + +* At every execve() call, the new vector length of the new process is set to + the system default vector length, unless + + * PR_SVE_SET_VL_INHERIT (or equivalently SVE_PT_VL_INHERIT) is set for the + calling thread, or + + * a deferred vector length change is pending, established via the + PR_SVE_SET_VL_ONEXEC flag (or SVE_PT_VL_ONEXEC). + +* Modifying the system default vector length does not affect the vector length + of any existing process or thread that does not make an execve() call. + + +Appendix A. SVE programmer's model (informative) +================================================= + +This section provides a minimal description of the additions made by SVE to the +ARMv8-A programmer's model that are relevant to this document. + +Note: This section is for information only and not intended to be complete or +to replace any architectural specification. + +A.1. Registers +--------------- + +In A64 state, SVE adds the following: + +* 32 8VL-bit vector registers Z0..Z31 + For each Zn, Zn bits [127:0] alias the ARMv8-A vector register Vn. + + A register write using a Vn register name zeros all bits of the corresponding + Zn except for bits [127:0]. + +* 16 VL-bit predicate registers P0..P15 + +* 1 VL-bit special-purpose predicate register FFR (the "first-fault register") + +* a VL "pseudo-register" that determines the size of each vector register + + The SVE instruction set architecture provides no way to write VL directly. + Instead, it can be modified only by EL1 and above, by writing appropriate + system registers. + +* The value of VL can be configured at runtime by EL1 and above: + 16 <= VL <= VLmax, where VL must be a multiple of 16. + +* The maximum vector length is determined by the hardware: + 16 <= VLmax <= 256. + + (The SVE architecture specifies 256, but permits future architecture + revisions to raise this limit.) + +* FPSR and FPCR are retained from ARMv8-A, and interact with SVE floating-point + operations in a similar way to the way in which they interact with ARMv8 + floating-point operations. + + 8VL-1 128 0 bit index + +---- //// -----------------+ + Z0 | : V0 | + : : + Z7 | : V7 | + Z8 | : * V8 | + : : : + Z15 | : *V15 | + Z16 | : V16 | + : : + Z31 | : V31 | + +---- //// -----------------+ + 31 0 + VL-1 0 +-------+ + +---- //// --+ FPSR | | + P0 | | +-------+ + : | | *FPCR | | + P15 | | +-------+ + +---- //// --+ + FFR | | +-----+ + +---- //// --+ VL | | + +-----+ + +(*) callee-save: + This only applies to bits [63:0] of Z-/V-registers. + FPCR contains callee-save and caller-save bits. See [4] for details. + + +A.2. Procedure call standard +----------------------------- + +The ARMv8-A base procedure call standard is extended as follows with respect to +the additional SVE register state: + +* All SVE register bits that are not shared with FP/SIMD are caller-save. + +* Z8 bits [63:0] .. Z15 bits [63:0] are callee-save. + + This follows from the way these bits are mapped to V8..V15, which are caller- + save in the base procedure call standard. + + +Appendix B. ARMv8-A FP/SIMD programmer's model +=============================================== + +Note: This section is for information only and not intended to be complete or +to replace any architectural specification. + +Refer to [4] for for more information. + +ARMv8-A defines the following floating-point / SIMD register state: + +* 32 128-bit vector registers V0..V31 +* 2 32-bit status/control registers FPSR, FPCR + + 127 0 bit index + +---------------+ + V0 | | + : : : + V7 | | + * V8 | | + : : : : + *V15 | | + V16 | | + : : : + V31 | | + +---------------+ + + 31 0 + +-------+ + FPSR | | + +-------+ + *FPCR | | + +-------+ + +(*) callee-save: + This only applies to bits [63:0] of V-registers. + FPCR contains a mixture of callee-save and caller-save bits. + + +References +========== + +[1] arch/arm64/include/uapi/asm/sigcontext.h + AArch64 Linux signal ABI definitions + +[2] arch/arm64/include/uapi/asm/ptrace.h + AArch64 Linux ptrace ABI definitions + +[3] linux/Documentation/arm64/cpu-feature-registers.txt + +[4] ARM IHI0055C + http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055c/IHI0055C_beta_aapcs64.pdf + http://infocenter.arm.com/help/topic/com.arm.doc.subset.swdev.abi/index.html + Procedure Call Standard for the ARM 64-bit Architecture (AArch64) diff --git a/arch/arm64/include/uapi/asm/sigcontext.h b/arch/arm64/include/uapi/asm/sigcontext.h index 7654a81bc577..3c0b48498db9 100644 --- a/arch/arm64/include/uapi/asm/sigcontext.h +++ b/arch/arm64/include/uapi/asm/sigcontext.h @@ -133,6 +133,9 @@ struct sve_context { * The SVE architecture leaves space for future expansion of the * vector length beyond its initial architectural limit of 2048 bits * (16 quadwords). + * + * See linux/Documentation/arm64/sve.txt for a description of the VL/VQ + * terminology. */ #define SVE_VQ_BYTES 16 /* number of bytes per quadword */ -- cgit v1.2.3 From fb615d61b5583db92e3793709b97e35dc9499c2a Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Wed, 25 Oct 2017 17:04:33 -0700 Subject: Update MIPS email addresses MIPS will soon not be a part of Imagination Technologies, and as such many @imgtec.com email addresses will no longer be valid. This patch updates the addresses for those who: - Have 10 or more patches in mainline authored using an @imgtec.com email address, or any patches dated within the past year. - Are still with Imagination but leaving as part of the MIPS business unit, as determined from an internal email address list. - Haven't already updated their email address (ie. JamesH) or expressed a desire to be excluded (ie. Maciej). - Acked v2 or earlier of this patch, which leaves Deng-Cheng, Matt & myself. New addresses are of the form firstname.lastname@mips.com, and all verified against an internal email address list. An entry is added to .mailmap for each person such that get_maintainer.pl will report the new addresses rather than @imgtec.com addresses which will soon be dead. Instances of the affected addresses throughout the tree are then mechanically replaced with the new @mips.com address. Signed-off-by: Paul Burton Cc: Deng-Cheng Zhu Cc: Deng-Cheng Zhu Acked-by: Dengcheng Zhu Cc: Matt Redfearn Cc: Matt Redfearn Acked-by: Matt Redfearn Cc: Andrew Morton Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: trivial@kernel.org Signed-off-by: Linus Torvalds --- .mailmap | 3 +++ Documentation/ABI/testing/sysfs-class-remoteproc | 4 ++-- MAINTAINERS | 6 +++--- arch/mips/generic/Makefile | 2 +- arch/mips/generic/Platform | 2 +- arch/mips/generic/board-sead3.c | 2 +- arch/mips/generic/init.c | 2 +- arch/mips/generic/irq.c | 2 +- arch/mips/generic/proc.c | 2 +- arch/mips/generic/yamon-dt.c | 2 +- arch/mips/include/asm/dsemul.h | 2 +- arch/mips/include/asm/maar.h | 2 +- arch/mips/include/asm/mach-malta/malta-dtshim.h | 2 +- arch/mips/include/asm/mach-malta/malta-pm.h | 2 +- arch/mips/include/asm/machine.h | 2 +- arch/mips/include/asm/mips-cm.h | 2 +- arch/mips/include/asm/mips-cpc.h | 2 +- arch/mips/include/asm/mips-cps.h | 2 +- arch/mips/include/asm/mips-gic.h | 2 +- arch/mips/include/asm/msa.h | 2 +- arch/mips/include/asm/pm-cps.h | 2 +- arch/mips/include/asm/smp-cps.h | 2 +- arch/mips/include/asm/yamon-dt.h | 2 +- arch/mips/kernel/cmpxchg.c | 2 +- arch/mips/kernel/cps-vec-ns16550.S | 2 +- arch/mips/kernel/cps-vec.S | 2 +- arch/mips/kernel/elf.c | 2 +- arch/mips/kernel/mips-cm.c | 2 +- arch/mips/kernel/mips-cpc.c | 2 +- arch/mips/kernel/pm-cps.c | 2 +- arch/mips/kernel/relocate.c | 2 +- arch/mips/kernel/smp-cps.c | 2 +- arch/mips/mm/sc-debugfs.c | 2 +- arch/mips/mti-malta/malta-dt.c | 2 +- arch/mips/mti-malta/malta-dtshim.c | 2 +- arch/mips/mti-malta/malta-pm.c | 2 +- arch/mips/pci/pci-generic.c | 2 +- arch/mips/tools/generic-board-config.sh | 2 +- drivers/auxdisplay/img-ascii-lcd.c | 2 +- drivers/clk/imgtec/clk-boston.c | 2 +- drivers/clk/ingenic/cgu.c | 2 +- drivers/clk/ingenic/cgu.h | 2 +- drivers/clk/ingenic/jz4740-cgu.c | 2 +- drivers/clk/ingenic/jz4780-cgu.c | 2 +- drivers/cpuidle/cpuidle-cps.c | 2 +- drivers/power/reset/piix4-poweroff.c | 4 ++-- 46 files changed, 52 insertions(+), 49 deletions(-) (limited to 'Documentation') diff --git a/.mailmap b/.mailmap index c7b10caecc4e..a32879a9f970 100644 --- a/.mailmap +++ b/.mailmap @@ -43,6 +43,7 @@ Corey Minyard Damian Hobson-Garcia David Brownell David Woodhouse +Deng-Cheng Zhu Dmitry Eremin-Solenikov Domen Puncer Douglas Gilbert @@ -114,6 +115,7 @@ Mauro Carvalho Chehab Matt Ranostay Matthew Ranostay Matt Ranostay Matt Ranostay +Matt Redfearn Mayuresh Janorkar Michael Buesch Michel Dänzer @@ -127,6 +129,7 @@ Mythri P K Nguyen Anh Quynh Paolo 'Blaisorblade' Giarrusso Patrick Mochel +Paul Burton Peter A Jonsson Peter Oruba Peter Oruba diff --git a/Documentation/ABI/testing/sysfs-class-remoteproc b/Documentation/ABI/testing/sysfs-class-remoteproc index d188afebc8ba..c3afe9fab646 100644 --- a/Documentation/ABI/testing/sysfs-class-remoteproc +++ b/Documentation/ABI/testing/sysfs-class-remoteproc @@ -1,6 +1,6 @@ What: /sys/class/remoteproc/.../firmware Date: October 2016 -Contact: Matt Redfearn +Contact: Matt Redfearn Description: Remote processor firmware Reports the name of the firmware currently loaded to the @@ -11,7 +11,7 @@ Description: Remote processor firmware What: /sys/class/remoteproc/.../state Date: October 2016 -Contact: Matt Redfearn +Contact: Matt Redfearn Description: Remote processor state Reports the state of the remote processor, which will be one of: diff --git a/MAINTAINERS b/MAINTAINERS index bf1d20695cbf..00b0fda6c2e1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6733,7 +6733,7 @@ S: Maintained F: drivers/usb/atm/ueagle-atm.c IMGTEC ASCII LCD DRIVER -M: Paul Burton +M: Paul Burton S: Maintained F: Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt F: drivers/auxdisplay/img-ascii-lcd.c @@ -8993,7 +8993,7 @@ F: Documentation/mips/ F: arch/mips/ MIPS BOSTON DEVELOPMENT BOARD -M: Paul Burton +M: Paul Burton L: linux-mips@linux-mips.org S: Maintained F: Documentation/devicetree/bindings/clock/img,boston-clock.txt @@ -9003,7 +9003,7 @@ F: drivers/clk/imgtec/clk-boston.c F: include/dt-bindings/clock/boston-clock.h MIPS GENERIC PLATFORM -M: Paul Burton +M: Paul Burton L: linux-mips@linux-mips.org S: Supported F: arch/mips/generic/ diff --git a/arch/mips/generic/Makefile b/arch/mips/generic/Makefile index 56b3ea565ed9..874967363dbb 100644 --- a/arch/mips/generic/Makefile +++ b/arch/mips/generic/Makefile @@ -1,6 +1,6 @@ # # Copyright (C) 2016 Imagination Technologies -# Author: Paul Burton +# Author: Paul Burton # # This program is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the diff --git a/arch/mips/generic/Platform b/arch/mips/generic/Platform index f5312dfa8184..b51432dd10b6 100644 --- a/arch/mips/generic/Platform +++ b/arch/mips/generic/Platform @@ -1,6 +1,6 @@ # # Copyright (C) 2016 Imagination Technologies -# Author: Paul Burton +# Author: Paul Burton # # This program is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the diff --git a/arch/mips/generic/board-sead3.c b/arch/mips/generic/board-sead3.c index f109a6b9fdd0..10cf93d97346 100644 --- a/arch/mips/generic/board-sead3.c +++ b/arch/mips/generic/board-sead3.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/generic/init.c b/arch/mips/generic/init.c index 15a7fb8e2a2e..cf409ba358a1 100644 --- a/arch/mips/generic/init.c +++ b/arch/mips/generic/init.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/generic/irq.c b/arch/mips/generic/irq.c index 5322d09dd51b..394f8161e462 100644 --- a/arch/mips/generic/irq.c +++ b/arch/mips/generic/irq.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/generic/proc.c b/arch/mips/generic/proc.c index 42b33250a4a2..199fb2cc57ee 100644 --- a/arch/mips/generic/proc.c +++ b/arch/mips/generic/proc.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/generic/yamon-dt.c b/arch/mips/generic/yamon-dt.c index 6077bca9b364..b408dac722ac 100644 --- a/arch/mips/generic/yamon-dt.c +++ b/arch/mips/generic/yamon-dt.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/dsemul.h b/arch/mips/include/asm/dsemul.h index a6e067801f23..b47a97527673 100644 --- a/arch/mips/include/asm/dsemul.h +++ b/arch/mips/include/asm/dsemul.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/maar.h b/arch/mips/include/asm/maar.h index e10f78befbd9..1e0da80bba13 100644 --- a/arch/mips/include/asm/maar.h +++ b/arch/mips/include/asm/maar.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2014 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/mach-malta/malta-dtshim.h b/arch/mips/include/asm/mach-malta/malta-dtshim.h index cfd777663c64..d696a7598ea7 100644 --- a/arch/mips/include/asm/mach-malta/malta-dtshim.h +++ b/arch/mips/include/asm/mach-malta/malta-dtshim.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2015 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/mach-malta/malta-pm.h b/arch/mips/include/asm/mach-malta/malta-pm.h index c2c2e201013d..347b53dbc88f 100644 --- a/arch/mips/include/asm/mach-malta/malta-pm.h +++ b/arch/mips/include/asm/mach-malta/malta-pm.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2014 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/machine.h b/arch/mips/include/asm/machine.h index ecb6c7335484..e0d9b373d415 100644 --- a/arch/mips/include/asm/machine.h +++ b/arch/mips/include/asm/machine.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h index f6231b91b724..3708b8ccc0b4 100644 --- a/arch/mips/include/asm/mips-cm.h +++ b/arch/mips/include/asm/mips-cm.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/mips-cpc.h b/arch/mips/include/asm/mips-cpc.h index f885051a8378..b55e335cfba4 100644 --- a/arch/mips/include/asm/mips-cpc.h +++ b/arch/mips/include/asm/mips-cpc.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/mips-cps.h b/arch/mips/include/asm/mips-cps.h index bf02b5070a98..8ad4a85eed0c 100644 --- a/arch/mips/include/asm/mips-cps.h +++ b/arch/mips/include/asm/mips-cps.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2017 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/mips-gic.h b/arch/mips/include/asm/mips-gic.h index a2badf572632..558059a8f218 100644 --- a/arch/mips/include/asm/mips-gic.h +++ b/arch/mips/include/asm/mips-gic.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2017 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/msa.h b/arch/mips/include/asm/msa.h index 8967b475ab10..b1845102f8f9 100644 --- a/arch/mips/include/asm/msa.h +++ b/arch/mips/include/asm/msa.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/pm-cps.h b/arch/mips/include/asm/pm-cps.h index 89d58d80b77b..bb0616967342 100644 --- a/arch/mips/include/asm/pm-cps.h +++ b/arch/mips/include/asm/pm-cps.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2014 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/smp-cps.h b/arch/mips/include/asm/smp-cps.h index 2ae1f61a4a95..16b4ee3feb98 100644 --- a/arch/mips/include/asm/smp-cps.h +++ b/arch/mips/include/asm/smp-cps.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/include/asm/yamon-dt.h b/arch/mips/include/asm/yamon-dt.h index 485cfe3e45e1..10a073e6877a 100644 --- a/arch/mips/include/asm/yamon-dt.h +++ b/arch/mips/include/asm/yamon-dt.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/kernel/cmpxchg.c b/arch/mips/kernel/cmpxchg.c index 7730f1d3434f..0b9535bc2c53 100644 --- a/arch/mips/kernel/cmpxchg.c +++ b/arch/mips/kernel/cmpxchg.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2017 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/kernel/cps-vec-ns16550.S b/arch/mips/kernel/cps-vec-ns16550.S index 6d246ad05638..b37af23a5358 100644 --- a/arch/mips/kernel/cps-vec-ns16550.S +++ b/arch/mips/kernel/cps-vec-ns16550.S @@ -1,6 +1,6 @@ /* * Copyright (C) 2015 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S index d173b49f212d..c7ed26029cbb 100644 --- a/arch/mips/kernel/cps-vec.S +++ b/arch/mips/kernel/cps-vec.S @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/kernel/elf.c b/arch/mips/kernel/elf.c index 0828d6d963b7..731325a61a78 100644 --- a/arch/mips/kernel/elf.c +++ b/arch/mips/kernel/elf.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2014 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c index e91c8c4e2eb5..dd5567b1e305 100644 --- a/arch/mips/kernel/mips-cm.c +++ b/arch/mips/kernel/mips-cm.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/kernel/mips-cpc.c b/arch/mips/kernel/mips-cpc.c index f66b05ebf637..19c88d770054 100644 --- a/arch/mips/kernel/mips-cpc.c +++ b/arch/mips/kernel/mips-cpc.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/kernel/pm-cps.c b/arch/mips/kernel/pm-cps.c index 4655017f2377..9dd624c2fe56 100644 --- a/arch/mips/kernel/pm-cps.c +++ b/arch/mips/kernel/pm-cps.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2014 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/kernel/relocate.c b/arch/mips/kernel/relocate.c index 2d1a0c438771..cbf4cc0b0b6c 100644 --- a/arch/mips/kernel/relocate.c +++ b/arch/mips/kernel/relocate.c @@ -6,7 +6,7 @@ * Support for Kernel relocation at boot time * * Copyright (C) 2015, Imagination Technologies Ltd. - * Authors: Matt Redfearn (matt.redfearn@imgtec.com) + * Authors: Matt Redfearn (matt.redfearn@mips.com) */ #include #include diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c index 0063122c85da..7d6af41888e8 100644 --- a/arch/mips/kernel/smp-cps.c +++ b/arch/mips/kernel/smp-cps.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2013 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/mm/sc-debugfs.c b/arch/mips/mm/sc-debugfs.c index 7e945e310b44..2e2132d3f5c7 100644 --- a/arch/mips/mm/sc-debugfs.c +++ b/arch/mips/mm/sc-debugfs.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2015 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/mti-malta/malta-dt.c b/arch/mips/mti-malta/malta-dt.c index 4822943100f3..b397117033aa 100644 --- a/arch/mips/mti-malta/malta-dt.c +++ b/arch/mips/mti-malta/malta-dt.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2015 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/mti-malta/malta-dtshim.c b/arch/mips/mti-malta/malta-dtshim.c index a6699c15277d..7859b6e49863 100644 --- a/arch/mips/mti-malta/malta-dtshim.c +++ b/arch/mips/mti-malta/malta-dtshim.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2015 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/mti-malta/malta-pm.c b/arch/mips/mti-malta/malta-pm.c index c1e456c01a44..efbd659fb602 100644 --- a/arch/mips/mti-malta/malta-pm.c +++ b/arch/mips/mti-malta/malta-pm.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2014 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/arch/mips/pci/pci-generic.c b/arch/mips/pci/pci-generic.c index dce304dc3d62..676348164027 100644 --- a/arch/mips/pci/pci-generic.c +++ b/arch/mips/pci/pci-generic.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * pcibios_align_resource taken from arch/arm/kernel/bios32.c. * diff --git a/arch/mips/tools/generic-board-config.sh b/arch/mips/tools/generic-board-config.sh index 654d652d7fa1..08849f83ef6c 100755 --- a/arch/mips/tools/generic-board-config.sh +++ b/arch/mips/tools/generic-board-config.sh @@ -1,7 +1,7 @@ #!/bin/sh # # Copyright (C) 2017 Imagination Technologies -# Author: Paul Burton +# Author: Paul Burton # # This program is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the diff --git a/drivers/auxdisplay/img-ascii-lcd.c b/drivers/auxdisplay/img-ascii-lcd.c index 25306fa27251..a9020f82eea7 100644 --- a/drivers/auxdisplay/img-ascii-lcd.c +++ b/drivers/auxdisplay/img-ascii-lcd.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/drivers/clk/imgtec/clk-boston.c b/drivers/clk/imgtec/clk-boston.c index f18f10351785..15af423cc0c9 100644 --- a/drivers/clk/imgtec/clk-boston.c +++ b/drivers/clk/imgtec/clk-boston.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2016-2017 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c index e8248f9185f7..ab393637f7b0 100644 --- a/drivers/clk/ingenic/cgu.c +++ b/drivers/clk/ingenic/cgu.c @@ -2,7 +2,7 @@ * Ingenic SoC CGU driver * * Copyright (c) 2013-2015 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as diff --git a/drivers/clk/ingenic/cgu.h b/drivers/clk/ingenic/cgu.h index 09700b2c555d..e78b586536ea 100644 --- a/drivers/clk/ingenic/cgu.h +++ b/drivers/clk/ingenic/cgu.h @@ -2,7 +2,7 @@ * Ingenic SoC CGU driver * * Copyright (c) 2013-2015 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as diff --git a/drivers/clk/ingenic/jz4740-cgu.c b/drivers/clk/ingenic/jz4740-cgu.c index 510fe7e0c8f1..32fcc75f6f77 100644 --- a/drivers/clk/ingenic/jz4740-cgu.c +++ b/drivers/clk/ingenic/jz4740-cgu.c @@ -2,7 +2,7 @@ * Ingenic JZ4740 SoC CGU driver * * Copyright (c) 2015 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as diff --git a/drivers/clk/ingenic/jz4780-cgu.c b/drivers/clk/ingenic/jz4780-cgu.c index b35d6d9dd5aa..ac3585ed8228 100644 --- a/drivers/clk/ingenic/jz4780-cgu.c +++ b/drivers/clk/ingenic/jz4780-cgu.c @@ -2,7 +2,7 @@ * Ingenic JZ4780 SoC CGU driver * * Copyright (c) 2013-2015 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as diff --git a/drivers/cpuidle/cpuidle-cps.c b/drivers/cpuidle/cpuidle-cps.c index 72b5e47286b4..dac8ff6391fa 100644 --- a/drivers/cpuidle/cpuidle-cps.c +++ b/drivers/cpuidle/cpuidle-cps.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2014 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the diff --git a/drivers/power/reset/piix4-poweroff.c b/drivers/power/reset/piix4-poweroff.c index bacfc95783f0..20ce3ff5e039 100644 --- a/drivers/power/reset/piix4-poweroff.c +++ b/drivers/power/reset/piix4-poweroff.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2016 Imagination Technologies - * Author: Paul Burton + * Author: Paul Burton * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -109,5 +109,5 @@ static struct pci_driver piix4_poweroff_driver = { }; module_pci_driver(piix4_poweroff_driver); -MODULE_AUTHOR("Paul Burton "); +MODULE_AUTHOR("Paul Burton "); MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 33b9ca1e53b45f7cacdba9d4fba5cb1387b26827 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Wed, 1 Nov 2017 14:25:30 -0500 Subject: platform/x86: dell-smbios: Add a sysfs interface for SMBIOS tokens Currently userspace tools can access system tokens via the dcdbas kernel module and a SMI call that will cause the platform to execute SMM code. With a goal in mind of deprecating the dcdbas kernel module a different method for accessing these tokens from userspace needs to be created. This is intentionally marked to only be readable as a process with CAP_SYS_ADMIN as it can contain sensitive information about the platform's configuration. While adding this interface I found that some tokens are duplicated. These need to be ignored from sysfs to avoid duplicate files. MAINTAINERS was missing for this driver. Add myself and Pali to maintainers list for it. Signed-off-by: Mario Limonciello Reviewed-by: Edward O'Callaghan Signed-off-by: Darren Hart (VMware) --- .../ABI/testing/sysfs-platform-dell-smbios | 21 ++ MAINTAINERS | 7 + drivers/platform/x86/dell-smbios.c | 213 ++++++++++++++++++++- 3 files changed, 240 insertions(+), 1 deletion(-) create mode 100644 Documentation/ABI/testing/sysfs-platform-dell-smbios (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-platform-dell-smbios b/Documentation/ABI/testing/sysfs-platform-dell-smbios new file mode 100644 index 000000000000..205d3b6361e0 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-platform-dell-smbios @@ -0,0 +1,21 @@ +What: /sys/devices/platform//tokens/* +Date: November 2017 +KernelVersion: 4.15 +Contact: "Mario Limonciello" +Description: + A read-only description of Dell platform tokens + available on the machine. + + Each token attribute is available as a pair of + sysfs attributes readable by a process with + CAP_SYS_ADMIN. + + For example the token ID "5" would be available + as the following attributes: + + 0005_location + 0005_value + + Tokens will vary from machine to machine, and + only tokens available on that machine will be + displayed. diff --git a/MAINTAINERS b/MAINTAINERS index 69a81400cc65..cb4bc87874c0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3978,6 +3978,13 @@ M: "Maciej W. Rozycki" S: Maintained F: drivers/net/fddi/defxx.* +DELL SMBIOS DRIVER +M: Pali Rohár +M: Mario Limonciello +L: platform-driver-x86@vger.kernel.org +S: Maintained +F: drivers/platform/x86/dell-smbios.* + DELL LAPTOP DRIVER M: Matthew Garrett M: Pali Rohár diff --git a/drivers/platform/x86/dell-smbios.c b/drivers/platform/x86/dell-smbios.c index 12a3eb153911..ed4995fdcd46 100644 --- a/drivers/platform/x86/dell-smbios.c +++ b/drivers/platform/x86/dell-smbios.c @@ -16,10 +16,12 @@ #include #include +#include #include #include #include #include +#include #include #include #include "../../firmware/dcdbas.h" @@ -39,7 +41,11 @@ static DEFINE_MUTEX(buffer_mutex); static int da_command_address; static int da_command_code; static int da_num_tokens; +static struct platform_device *platform_device; static struct calling_interface_token *da_tokens; +static struct device_attribute *token_location_attrs; +static struct device_attribute *token_value_attrs; +static struct attribute **token_attrs; int dell_smbios_error(int value) { @@ -157,6 +163,27 @@ static void __init parse_da_table(const struct dmi_header *dm) da_num_tokens += tokens; } +static void zero_duplicates(struct device *dev) +{ + int i, j; + + for (i = 0; i < da_num_tokens; i++) { + if (da_tokens[i].tokenID == 0) + continue; + for (j = i+1; j < da_num_tokens; j++) { + if (da_tokens[j].tokenID == 0) + continue; + if (da_tokens[i].tokenID == da_tokens[j].tokenID) { + dev_dbg(dev, "Zeroing dup token ID %x(%x/%x)\n", + da_tokens[j].tokenID, + da_tokens[j].location, + da_tokens[j].value); + da_tokens[j].tokenID = 0; + } + } + } +} + static void __init find_tokens(const struct dmi_header *dm, void *dummy) { switch (dm->type) { @@ -170,6 +197,154 @@ static void __init find_tokens(const struct dmi_header *dm, void *dummy) } } +static int match_attribute(struct device *dev, + struct device_attribute *attr) +{ + int i; + + for (i = 0; i < da_num_tokens * 2; i++) { + if (!token_attrs[i]) + continue; + if (strcmp(token_attrs[i]->name, attr->attr.name) == 0) + return i/2; + } + dev_dbg(dev, "couldn't match: %s\n", attr->attr.name); + return -EINVAL; +} + +static ssize_t location_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int i; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + i = match_attribute(dev, attr); + if (i > 0) + return scnprintf(buf, PAGE_SIZE, "%08x", da_tokens[i].location); + return 0; +} + +static ssize_t value_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int i; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + i = match_attribute(dev, attr); + if (i > 0) + return scnprintf(buf, PAGE_SIZE, "%08x", da_tokens[i].value); + return 0; +} + +static struct attribute_group smbios_attribute_group = { + .name = "tokens" +}; + +static struct platform_driver platform_driver = { + .driver = { + .name = "dell-smbios", + }, +}; + +static int build_tokens_sysfs(struct platform_device *dev) +{ + char buffer_location[13]; + char buffer_value[10]; + char *location_name; + char *value_name; + size_t size; + int ret; + int i, j; + + /* (number of tokens + 1 for null terminated */ + size = sizeof(struct device_attribute) * (da_num_tokens + 1); + token_location_attrs = kzalloc(size, GFP_KERNEL); + if (!token_location_attrs) + return -ENOMEM; + token_value_attrs = kzalloc(size, GFP_KERNEL); + if (!token_value_attrs) + goto out_allocate_value; + + /* need to store both location and value + terminator*/ + size = sizeof(struct attribute *) * ((2 * da_num_tokens) + 1); + token_attrs = kzalloc(size, GFP_KERNEL); + if (!token_attrs) + goto out_allocate_attrs; + + for (i = 0, j = 0; i < da_num_tokens; i++) { + /* skip empty */ + if (da_tokens[i].tokenID == 0) + continue; + /* add location */ + sprintf(buffer_location, "%04x_location", + da_tokens[i].tokenID); + location_name = kstrdup(buffer_location, GFP_KERNEL); + if (location_name == NULL) + goto out_unwind_strings; + sysfs_attr_init(&token_location_attrs[i].attr); + token_location_attrs[i].attr.name = location_name; + token_location_attrs[i].attr.mode = 0444; + token_location_attrs[i].show = location_show; + token_attrs[j++] = &token_location_attrs[i].attr; + + /* add value */ + sprintf(buffer_value, "%04x_value", + da_tokens[i].tokenID); + value_name = kstrdup(buffer_value, GFP_KERNEL); + if (value_name == NULL) + goto loop_fail_create_value; + sysfs_attr_init(&token_value_attrs[i].attr); + token_value_attrs[i].attr.name = value_name; + token_value_attrs[i].attr.mode = 0444; + token_value_attrs[i].show = value_show; + token_attrs[j++] = &token_value_attrs[i].attr; + continue; + +loop_fail_create_value: + kfree(value_name); + goto out_unwind_strings; + } + smbios_attribute_group.attrs = token_attrs; + + ret = sysfs_create_group(&dev->dev.kobj, &smbios_attribute_group); + if (ret) + goto out_unwind_strings; + return 0; + +out_unwind_strings: + for (i = i-1; i > 0; i--) { + kfree(token_location_attrs[i].attr.name); + kfree(token_value_attrs[i].attr.name); + } + kfree(token_attrs); +out_allocate_attrs: + kfree(token_value_attrs); +out_allocate_value: + kfree(token_location_attrs); + + return -ENOMEM; +} + +static void free_group(struct platform_device *pdev) +{ + int i; + + sysfs_remove_group(&pdev->dev.kobj, + &smbios_attribute_group); + for (i = 0; i < da_num_tokens; i++) { + kfree(token_location_attrs[i].attr.name); + kfree(token_value_attrs[i].attr.name); + } + kfree(token_attrs); + kfree(token_value_attrs); + kfree(token_location_attrs); +} + + static int __init dell_smbios_init(void) { const struct dmi_device *valid; @@ -197,9 +372,40 @@ static int __init dell_smbios_init(void) ret = -ENOMEM; goto fail_buffer; } + ret = platform_driver_register(&platform_driver); + if (ret) + goto fail_platform_driver; + + platform_device = platform_device_alloc("dell-smbios", 0); + if (!platform_device) { + ret = -ENOMEM; + goto fail_platform_device_alloc; + } + ret = platform_device_add(platform_device); + if (ret) + goto fail_platform_device_add; + + /* duplicate tokens will cause problems building sysfs files */ + zero_duplicates(&platform_device->dev); + + ret = build_tokens_sysfs(platform_device); + if (ret) + goto fail_create_group; return 0; +fail_create_group: + platform_device_del(platform_device); + +fail_platform_device_add: + platform_device_put(platform_device); + +fail_platform_device_alloc: + platform_driver_unregister(&platform_driver); + +fail_platform_driver: + free_page((unsigned long)buffer); + fail_buffer: kfree(da_tokens); return ret; @@ -207,8 +413,13 @@ fail_buffer: static void __exit dell_smbios_exit(void) { - kfree(da_tokens); + if (platform_device) { + free_group(platform_device); + platform_device_unregister(platform_device); + platform_driver_unregister(&platform_driver); + } free_page((unsigned long)buffer); + kfree(da_tokens); } subsys_initcall(dell_smbios_init); -- cgit v1.2.3 From f2645fa317b8905b8934f06a0601d5b7fa66aba0 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Wed, 1 Nov 2017 14:25:36 -0500 Subject: platform/x86: dell-smbios-wmi: introduce userspace interface It's important for the driver to provide a R/W ioctl to ensure that two competing userspace processes don't race to provide or read each others data. This userspace character device will be used to perform SMBIOS calls from any applications. It provides an ioctl that will allow passing the WMI calling interface buffer between userspace and kernel space. This character device is intended to deprecate the dcdbas kernel module and the interface that it provides to userspace. To perform an SMBIOS IOCTL call using the character device userspace will perform a read() on the the character device. The WMI bus will provide a u64 variable containing the necessary size of the IOCTL buffer. The API for interacting with this interface is defined in documentation as well as the WMI uapi header provides the format of the structures. Not all userspace requests will be accepted. The dell-smbios filtering functionality will be used to prevent access to certain tokens and calls. All whitelisted commands and tokens are now shared out to userspace so applications don't need to define them in their own headers. Signed-off-by: Mario Limonciello Reviewed-by: Edward O'Callaghan Signed-off-by: Darren Hart (VMware) --- Documentation/ABI/testing/dell-smbios-wmi | 41 +++++++++++++++++++++++ drivers/platform/x86/dell-smbios-wmi.c | 54 ++++++++++++++++++++++++------- drivers/platform/x86/dell-smbios.h | 32 ++---------------- include/uapi/linux/wmi.h | 47 +++++++++++++++++++++++++++ 4 files changed, 133 insertions(+), 41 deletions(-) create mode 100644 Documentation/ABI/testing/dell-smbios-wmi (limited to 'Documentation') diff --git a/Documentation/ABI/testing/dell-smbios-wmi b/Documentation/ABI/testing/dell-smbios-wmi new file mode 100644 index 000000000000..fc919ce16008 --- /dev/null +++ b/Documentation/ABI/testing/dell-smbios-wmi @@ -0,0 +1,41 @@ +What: /dev/wmi/dell-smbios +Date: November 2017 +KernelVersion: 4.15 +Contact: "Mario Limonciello" +Description: + Perform SMBIOS calls on supported Dell machines. + through the Dell ACPI-WMI interface. + + IOCTL's and buffer formats are defined in: + + + 1) To perform an SMBIOS call from userspace, you'll need to + first determine the minimum size of the calling interface + buffer for your machine. + Platforms that contain larger buffers can return larger + objects from the system firmware. + Commonly this size is either 4k or 32k. + + To determine the size of the buffer read() a u64 dword from + the WMI character device /dev/wmi/dell-smbios. + + 2) After you've determined the minimum size of the calling + interface buffer, you can allocate a structure that represents + the structure documented above. + + 3) In the 'length' object store the size of the buffer you + determined above and allocated. + + 4) In this buffer object, prepare as necessary for the SMBIOS + call you're interested in. Typically SMBIOS buffers have + "class", "select", and "input" defined to values that coincide + with the data you are interested in. + Documenting class/select/input values is outside of the scope + of this documentation. Check with the libsmbios project for + further documentation on these values. + + 6) Run the call by using ioctl() as described in the header. + + 7) The output will be returned in the buffer object. + + 8) Be sure to free up your allocated object. diff --git a/drivers/platform/x86/dell-smbios-wmi.c b/drivers/platform/x86/dell-smbios-wmi.c index b31f457e58c3..35c13815b24c 100644 --- a/drivers/platform/x86/dell-smbios-wmi.c +++ b/drivers/platform/x86/dell-smbios-wmi.c @@ -30,17 +30,6 @@ struct misc_bios_flags_structure { #define DELL_WMI_SMBIOS_GUID "A80593CE-A997-11DA-B012-B622A1EF5492" -struct dell_wmi_extensions { - __u32 argattrib; - __u32 blength; - __u8 data[]; -} __packed; - -struct dell_wmi_smbios_buffer { - struct calling_interface_buffer std; - struct dell_wmi_extensions ext; -} __packed; - struct wmi_smbios_priv { struct dell_wmi_smbios_buffer *buf; struct list_head list; @@ -117,6 +106,42 @@ int dell_smbios_wmi_call(struct calling_interface_buffer *buffer) return ret; } +static long dell_smbios_wmi_filter(struct wmi_device *wdev, unsigned int cmd, + struct wmi_ioctl_buffer *arg) +{ + struct wmi_smbios_priv *priv; + int ret = 0; + + switch (cmd) { + case DELL_WMI_SMBIOS_CMD: + mutex_lock(&call_mutex); + priv = dev_get_drvdata(&wdev->dev); + if (!priv) { + ret = -ENODEV; + goto fail_smbios_cmd; + } + memcpy(priv->buf, arg, priv->req_buf_size); + if (dell_smbios_call_filter(&wdev->dev, &priv->buf->std)) { + dev_err(&wdev->dev, "Invalid call %d/%d:%8x\n", + priv->buf->std.cmd_class, + priv->buf->std.cmd_select, + priv->buf->std.input[0]); + ret = -EFAULT; + goto fail_smbios_cmd; + } + ret = run_smbios_call(priv->wdev); + if (ret) + goto fail_smbios_cmd; + memcpy(arg, priv->buf, priv->req_buf_size); +fail_smbios_cmd: + mutex_unlock(&call_mutex); + break; + default: + ret = -ENOIOCTLCMD; + } + return ret; +} + static int dell_smbios_wmi_probe(struct wmi_device *wdev) { struct wmi_smbios_priv *priv; @@ -135,6 +160,12 @@ static int dell_smbios_wmi_probe(struct wmi_device *wdev) if (!dell_wmi_get_size(&priv->req_buf_size)) return -EPROBE_DEFER; + /* add in the length object we will use internally with ioctl */ + priv->req_buf_size += sizeof(u64); + ret = set_required_buffer_size(wdev, priv->req_buf_size); + if (ret) + return ret; + count = get_order(priv->req_buf_size); priv->buf = (void *)__get_free_pages(GFP_KERNEL, count); if (!priv->buf) @@ -210,6 +241,7 @@ static struct wmi_driver dell_smbios_wmi_driver = { .probe = dell_smbios_wmi_probe, .remove = dell_smbios_wmi_remove, .id_table = dell_smbios_wmi_id_table, + .filter_callback = dell_smbios_wmi_filter, }; static int __init init_dell_smbios_wmi(void) diff --git a/drivers/platform/x86/dell-smbios.h b/drivers/platform/x86/dell-smbios.h index 91e8004d48ba..138d478d9adc 100644 --- a/drivers/platform/x86/dell-smbios.h +++ b/drivers/platform/x86/dell-smbios.h @@ -17,23 +17,11 @@ #define _DELL_SMBIOS_H_ #include +#include -/* Classes and selects used in kernel drivers */ -#define CLASS_TOKEN_READ 0 -#define CLASS_TOKEN_WRITE 1 -#define SELECT_TOKEN_STD 0 -#define SELECT_TOKEN_BAT 1 -#define SELECT_TOKEN_AC 2 +/* Classes and selects used only in kernel drivers */ #define CLASS_KBD_BACKLIGHT 4 #define SELECT_KBD_BACKLIGHT 11 -#define CLASS_FLASH_INTERFACE 7 -#define SELECT_FLASH_INTERFACE 3 -#define CLASS_ADMIN_PROP 10 -#define SELECT_ADMIN_PROP 3 -#define CLASS_INFO 17 -#define SELECT_RFKILL 11 -#define SELECT_APP_REGISTRATION 3 -#define SELECT_DOCK 22 /* Tokens used in kernel drivers, any of these * should be filtered from userspace access @@ -50,24 +38,8 @@ #define GLOBAL_MIC_MUTE_ENABLE 0x0364 #define GLOBAL_MIC_MUTE_DISABLE 0x0365 -/* tokens whitelisted to userspace use */ -#define CAPSULE_EN_TOKEN 0x0461 -#define CAPSULE_DIS_TOKEN 0x0462 -#define WSMT_EN_TOKEN 0x04EC -#define WSMT_DIS_TOKEN 0x04ED - struct notifier_block; -/* This structure will be modified by the firmware when we enter - * system management mode, hence the volatiles */ - -struct calling_interface_buffer { - u16 cmd_class; - u16 cmd_select; - volatile u32 input[4]; - volatile u32 output[4]; -} __packed; - struct calling_interface_token { u16 tokenID; u16 location; diff --git a/include/uapi/linux/wmi.h b/include/uapi/linux/wmi.h index 7e52350ac9b3..7a92e9e3d1c0 100644 --- a/include/uapi/linux/wmi.h +++ b/include/uapi/linux/wmi.h @@ -10,6 +10,7 @@ #ifndef _UAPI_LINUX_WMI_H #define _UAPI_LINUX_WMI_H +#include #include /* WMI bus will filter all WMI vendor driver requests through this IOC */ @@ -23,4 +24,50 @@ struct wmi_ioctl_buffer { __u8 data[]; }; +/* This structure may be modified by the firmware when we enter + * system management mode through SMM, hence the volatiles + */ +struct calling_interface_buffer { + __u16 cmd_class; + __u16 cmd_select; + volatile __u32 input[4]; + volatile __u32 output[4]; +} __packed; + +struct dell_wmi_extensions { + __u32 argattrib; + __u32 blength; + __u8 data[]; +} __packed; + +struct dell_wmi_smbios_buffer { + __u64 length; + struct calling_interface_buffer std; + struct dell_wmi_extensions ext; +} __packed; + +/* Whitelisted smbios class/select commands */ +#define CLASS_TOKEN_READ 0 +#define CLASS_TOKEN_WRITE 1 +#define SELECT_TOKEN_STD 0 +#define SELECT_TOKEN_BAT 1 +#define SELECT_TOKEN_AC 2 +#define CLASS_FLASH_INTERFACE 7 +#define SELECT_FLASH_INTERFACE 3 +#define CLASS_ADMIN_PROP 10 +#define SELECT_ADMIN_PROP 3 +#define CLASS_INFO 17 +#define SELECT_RFKILL 11 +#define SELECT_APP_REGISTRATION 3 +#define SELECT_DOCK 22 + +/* whitelisted tokens */ +#define CAPSULE_EN_TOKEN 0x0461 +#define CAPSULE_DIS_TOKEN 0x0462 +#define WSMT_EN_TOKEN 0x04EC +#define WSMT_DIS_TOKEN 0x04ED + +/* Dell SMBIOS calling IOCTL command used by dell-smbios-wmi */ +#define DELL_WMI_SMBIOS_CMD _IOWR(WMI_IOC, 0, struct dell_wmi_smbios_buffer) + #endif -- cgit v1.2.3 From fa687604fa750f934dbbebb7a5b6cda570e88cb8 Mon Sep 17 00:00:00 2001 From: Andreas Färber Date: Mon, 11 Sep 2017 00:31:52 +0200 Subject: dt-bindings: arm: actions: Add CubieBoard6 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Define a compatible string for Cubietech CubieBoard6. Cc: support@cubietech.com Acked-by: Rob Herring Signed-off-by: Andreas Färber --- Documentation/devicetree/bindings/arm/actions.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/actions.txt b/Documentation/devicetree/bindings/arm/actions.txt index 3bc7ea575564..ced764a8549e 100644 --- a/Documentation/devicetree/bindings/arm/actions.txt +++ b/Documentation/devicetree/bindings/arm/actions.txt @@ -21,6 +21,7 @@ Boards: Root node property compatible must contain, depending on board: + - Cubietech CubieBoard6: "cubietech,cubieboard6" - LeMaker Guitar Base Board rev. B: "lemaker,guitar-bb-rev-b", "lemaker,guitar" -- cgit v1.2.3 From 707f5a0ff5e5c21422d5fb8797782d3fe8b51f35 Mon Sep 17 00:00:00 2001 From: Willy Tarreau Date: Fri, 3 Nov 2017 07:54:11 +0100 Subject: doc: add Willy Tarreau to the list of enforcement statement endorsers add me to the list. Signed-off-by: Willy Tarreau Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index d03b1a419dd6..3f2d44e492c1 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -137,6 +137,7 @@ we might work for today, have in the past, or will in the future. - K.Y. Srinivasan - Heiko Stuebner - Jiri Kosina (SUSE) + - Willy Tarreau - Dmitry Torokhov - Linus Torvalds - Thierry Reding -- cgit v1.2.3 From e1b48c209ebf99487f9941193b6c4e0a684a7c8c Mon Sep 17 00:00:00 2001 From: Frank Rowand Date: Fri, 3 Nov 2017 12:50:58 -0700 Subject: Documentation: Add Frank Rowand to list of enforcement statement endorsers Add my name to the list. Signed-off-by: Frank Rowand Signed-off-by: Greg Kroah-Hartman --- Documentation/process/kernel-enforcement-statement.rst | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst index 3f2d44e492c1..b3170671a1df 100644 --- a/Documentation/process/kernel-enforcement-statement.rst +++ b/Documentation/process/kernel-enforcement-statement.rst @@ -131,6 +131,7 @@ we might work for today, have in the past, or will in the future. - Joerg Roedel - Leon Romanovsky - Steven Rostedt (VMware) + - Frank Rowand - Ivan Safonov - Anna Schumaker - Jes Sorensen -- cgit v1.2.3 From 4d420a6a9ddd72bd25baa6e667dd0581506eeacb Mon Sep 17 00:00:00 2001 From: Andrew Jeffery Date: Fri, 3 Nov 2017 15:53:02 +1100 Subject: pmbus: Add driver for Maxim MAX31785 Intelligent Fan Controller The Maxim MAX31785 is a PMBus device providing closed-loop, multi-channel fan management with temperature and remote voltage sensing. It supports various fan control features, including PWM frequency control, temperature hysteresis, dual tachometer measurements, and fan health monitoring. This patch presents a basic driver using only the existing features of the PMBus subsystem. Signed-off-by: Andrew Jeffery [groeck: Modified description to clarify that fan control is not yet provided] Signed-off-by: Guenter Roeck --- Documentation/hwmon/max31785 | 51 ++++++++++++++++++ drivers/hwmon/pmbus/Kconfig | 10 ++++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/max31785.c | 116 +++++++++++++++++++++++++++++++++++++++++ 4 files changed, 178 insertions(+) create mode 100644 Documentation/hwmon/max31785 create mode 100644 drivers/hwmon/pmbus/max31785.c (limited to 'Documentation') diff --git a/Documentation/hwmon/max31785 b/Documentation/hwmon/max31785 new file mode 100644 index 000000000000..45fb6093dec2 --- /dev/null +++ b/Documentation/hwmon/max31785 @@ -0,0 +1,51 @@ +Kernel driver max31785 +====================== + +Supported chips: + * Maxim MAX31785, MAX31785A + Prefix: 'max31785' or 'max31785a' + Addresses scanned: - + Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX31785.pdf + +Author: Andrew Jeffery + +Description +----------- + +The Maxim MAX31785 is a PMBus device providing closed-loop, multi-channel fan +management with temperature and remote voltage sensing. Various fan control +features are provided, including PWM frequency control, temperature hysteresis, +dual tachometer measurements, and fan health monitoring. + +For dual rotor fan configuration, the MAX31785 exposes the slowest rotor of the +two in the fan[1-4]_input attributes. + +Usage Notes +----------- + +This driver does not probe for PMBus devices. You will have to instantiate +devices explicitly. + +Sysfs attributes +---------------- + +fan[1-4]_alarm Fan alarm. +fan[1-4]_fault Fan fault. +fan[1-4]_input Fan RPM. + +in[1-6]_crit Critical maximum output voltage +in[1-6]_crit_alarm Output voltage critical high alarm +in[1-6]_input Measured output voltage +in[1-6]_label "vout[18-23]" +in[1-6]_lcrit Critical minimum output voltage +in[1-6]_lcrit_alarm Output voltage critical low alarm +in[1-6]_max Maximum output voltage +in[1-6]_max_alarm Output voltage high alarm +in[1-6]_min Minimum output voltage +in[1-6]_min_alarm Output voltage low alarm + +temp[1-11]_crit Critical high temperature +temp[1-11]_crit_alarm Chip temperature critical high alarm +temp[1-11]_input Measured temperature +temp[1-11]_max Maximum temperature +temp[1-11]_max_alarm Chip temperature high alarm diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 40019325b517..08479006c7f9 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -114,6 +114,16 @@ config SENSORS_MAX20751 This driver can also be built as a module. If so, the module will be called max20751. +config SENSORS_MAX31785 + tristate "Maxim MAX31785 and compatibles" + default n + help + If you say yes here you get hardware monitoring support for Maxim + MAX31785. + + This driver can also be built as a module. If so, the module will + be called max31785. + config SENSORS_MAX34440 tristate "Maxim MAX34440 and compatibles" default n diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index 459a6be3390e..a8bf0e490db9 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o obj-$(CONFIG_SENSORS_LTC3815) += ltc3815.o obj-$(CONFIG_SENSORS_MAX16064) += max16064.o obj-$(CONFIG_SENSORS_MAX20751) += max20751.o +obj-$(CONFIG_SENSORS_MAX31785) += max31785.o obj-$(CONFIG_SENSORS_MAX34440) += max34440.o obj-$(CONFIG_SENSORS_MAX8688) += max8688.o obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o diff --git a/drivers/hwmon/pmbus/max31785.c b/drivers/hwmon/pmbus/max31785.c new file mode 100644 index 000000000000..9313849d5160 --- /dev/null +++ b/drivers/hwmon/pmbus/max31785.c @@ -0,0 +1,116 @@ +/* + * Copyright (C) 2017 IBM Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include +#include +#include +#include "pmbus.h" + +enum max31785_regs { + MFR_REVISION = 0x9b, +}; + +#define MAX31785_NR_PAGES 23 + +#define MAX31785_FAN_FUNCS \ + (PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12) + +#define MAX31785_TEMP_FUNCS \ + (PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP) + +#define MAX31785_VOUT_FUNCS \ + (PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT) + +static const struct pmbus_driver_info max31785_info = { + .pages = MAX31785_NR_PAGES, + + /* RPM */ + .format[PSC_FAN] = direct, + .m[PSC_FAN] = 1, + .b[PSC_FAN] = 0, + .R[PSC_FAN] = 0, + .func[0] = MAX31785_FAN_FUNCS, + .func[1] = MAX31785_FAN_FUNCS, + .func[2] = MAX31785_FAN_FUNCS, + .func[3] = MAX31785_FAN_FUNCS, + .func[4] = MAX31785_FAN_FUNCS, + .func[5] = MAX31785_FAN_FUNCS, + + .format[PSC_TEMPERATURE] = direct, + .m[PSC_TEMPERATURE] = 1, + .b[PSC_TEMPERATURE] = 0, + .R[PSC_TEMPERATURE] = 2, + .func[6] = MAX31785_TEMP_FUNCS, + .func[7] = MAX31785_TEMP_FUNCS, + .func[8] = MAX31785_TEMP_FUNCS, + .func[9] = MAX31785_TEMP_FUNCS, + .func[10] = MAX31785_TEMP_FUNCS, + .func[11] = MAX31785_TEMP_FUNCS, + .func[12] = MAX31785_TEMP_FUNCS, + .func[13] = MAX31785_TEMP_FUNCS, + .func[14] = MAX31785_TEMP_FUNCS, + .func[15] = MAX31785_TEMP_FUNCS, + .func[16] = MAX31785_TEMP_FUNCS, + + .format[PSC_VOLTAGE_OUT] = direct, + .m[PSC_VOLTAGE_OUT] = 1, + .b[PSC_VOLTAGE_OUT] = 0, + .R[PSC_VOLTAGE_OUT] = 0, + .func[17] = MAX31785_VOUT_FUNCS, + .func[18] = MAX31785_VOUT_FUNCS, + .func[19] = MAX31785_VOUT_FUNCS, + .func[20] = MAX31785_VOUT_FUNCS, + .func[21] = MAX31785_VOUT_FUNCS, + .func[22] = MAX31785_VOUT_FUNCS, +}; + +static int max31785_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct pmbus_driver_info *info; + s64 ret; + + info = devm_kzalloc(dev, sizeof(struct pmbus_driver_info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + *info = max31785_info; + + ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, 255); + if (ret < 0) + return ret; + + return pmbus_do_probe(client, id, info); +} + +static const struct i2c_device_id max31785_id[] = { + { "max31785", 0 }, + { "max31785a", 0 }, + { }, +}; + +MODULE_DEVICE_TABLE(i2c, max31785_id); + +static struct i2c_driver max31785_driver = { + .driver = { + .name = "max31785", + }, + .probe = max31785_probe, + .remove = pmbus_do_remove, + .id_table = max31785_id, +}; + +module_i2c_driver(max31785_driver); + +MODULE_AUTHOR("Andrew Jeffery "); +MODULE_DESCRIPTION("PMBus driver for the Maxim MAX31785"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 1f2556916d974cfb62b6af51660186b5f58bd869 Mon Sep 17 00:00:00 2001 From: Priyaranjan Jha Date: Fri, 3 Nov 2017 16:38:48 -0700 Subject: tcp: higher throughput under reordering with adaptive RACK reordering wnd Currently TCP RACK loss detection does not work well if packets are being reordered beyond its static reordering window (min_rtt/4).Under such reordering it may falsely trigger loss recoveries and reduce TCP throughput significantly. This patch improves that by increasing and reducing the reordering window based on DSACK, which is now supported in major TCP implementations. It makes RACK's reo_wnd adaptive based on DSACK and no. of recoveries. - If DSACK is received, increment reo_wnd by min_rtt/4 (upper bounded by srtt), since there is possibility that spurious retransmission was due to reordering delay longer than reo_wnd. - Persist the current reo_wnd value for TCP_RACK_RECOVERY_THRESH (16) no. of successful recoveries (accounts for full DSACK-based loss recovery undo). After that, reset it to default (min_rtt/4). - At max, reo_wnd is incremented only once per rtt. So that the new DSACK on which we are reacting, is due to the spurious retx (approx) after the reo_wnd has been updated last time. - reo_wnd is tracked in terms of steps (of min_rtt/4), rather than absolute value to account for change in rtt. In our internal testing, we observed significant increase in throughput, in scenarios where reordering exceeds min_rtt/4 (previous static value). Signed-off-by: Priyaranjan Jha Signed-off-by: Yuchung Cheng Signed-off-by: Neal Cardwell Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 1 + include/linux/tcp.h | 9 +++++-- include/net/tcp.h | 2 ++ net/ipv4/tcp.c | 1 + net/ipv4/tcp_input.c | 7 +++++ net/ipv4/tcp_minisocks.c | 4 +++ net/ipv4/tcp_recovery.c | 48 ++++++++++++++++++++++++++++++++-- 7 files changed, 68 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index e6661b205f72..54410a1d4065 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -454,6 +454,7 @@ tcp_recovery - INTEGER RACK: 0x1 enables the RACK loss detection for fast detection of lost retransmissions and tail drops. + RACK: 0x2 makes RACK's reordering window static (min_rtt/4). Default: 0x1 diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 8c431385b272..22f40c96a15b 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -210,8 +210,13 @@ struct tcp_sock { u64 mstamp; /* (Re)sent time of the skb */ u32 rtt_us; /* Associated RTT */ u32 end_seq; /* Ending TCP sequence of the skb */ - u8 advanced; /* mstamp advanced since last lost marking */ - u8 reord; /* reordering detected */ + u32 last_delivered; /* tp->delivered at last reo_wnd adj */ + u8 reo_wnd_steps; /* Allowed reordering window */ +#define TCP_RACK_RECOVERY_THRESH 16 + u8 reo_wnd_persist:5, /* No. of recovery since last adj */ + dsack_seen:1, /* Whether DSACK seen after last adj */ + advanced:1, /* mstamp advanced since last lost marking */ + reord:1; /* reordering detected */ } rack; u16 advmss; /* Advertised MSS */ u32 chrono_start; /* Start time in jiffies of a TCP chrono */ diff --git a/include/net/tcp.h b/include/net/tcp.h index c2bf2a822b10..babfd4da1515 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -246,6 +246,7 @@ extern int sysctl_tcp_wmem[3]; extern int sysctl_tcp_rmem[3]; #define TCP_RACK_LOSS_DETECTION 0x1 /* Use RACK to detect losses */ +#define TCP_RACK_STATIC_REO_WND 0x2 /* Use static RACK reo wnd */ extern atomic_long_t tcp_memory_allocated; extern struct percpu_counter tcp_sockets_allocated; @@ -1901,6 +1902,7 @@ extern void tcp_rack_mark_lost(struct sock *sk); extern void tcp_rack_advance(struct tcp_sock *tp, u8 sacked, u32 end_seq, u64 xmit_time); extern void tcp_rack_reo_timeout(struct sock *sk); +extern void tcp_rack_update_reo_wnd(struct sock *sk, struct rate_sample *rs); /* At how many usecs into the future should the RTO fire? */ static inline s64 tcp_rto_delta_us(const struct sock *sk) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index a7a0f316eb86..c4cb19ed4628 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -447,6 +447,7 @@ void tcp_init_sock(struct sock *sk) tcp_assign_congestion_control(sk); tp->tsoffset = 0; + tp->rack.reo_wnd_steps = 1; sk->sk_state = TCP_CLOSE; diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 8393b405ea98..0ada8bfc2ebd 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -856,6 +856,7 @@ void tcp_disable_fack(struct tcp_sock *tp) static void tcp_dsack_seen(struct tcp_sock *tp) { tp->rx_opt.sack_ok |= TCP_DSACK_SEEN; + tp->rack.dsack_seen = 1; } static void tcp_update_reordering(struct sock *sk, const int metric, @@ -2408,6 +2409,8 @@ static bool tcp_try_undo_recovery(struct sock *sk) mib_idx = LINUX_MIB_TCPFULLUNDO; NET_INC_STATS(sock_net(sk), mib_idx); + } else if (tp->rack.reo_wnd_persist) { + tp->rack.reo_wnd_persist--; } if (tp->snd_una == tp->high_seq && tcp_is_reno(tp)) { /* Hold old state until something *above* high_seq @@ -2427,6 +2430,8 @@ static bool tcp_try_undo_dsack(struct sock *sk) struct tcp_sock *tp = tcp_sk(sk); if (tp->undo_marker && !tp->undo_retrans) { + tp->rack.reo_wnd_persist = min(TCP_RACK_RECOVERY_THRESH, + tp->rack.reo_wnd_persist + 1); DBGUNDO(sk, "D-SACK"); tcp_undo_cwnd_reduction(sk, false); NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPDSACKUNDO); @@ -3644,6 +3649,8 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag) flag |= tcp_clean_rtx_queue(sk, prior_fackets, prior_snd_una, &acked, &sack_state); + tcp_rack_update_reo_wnd(sk, &rs); + if (tp->tlp_high_seq) tcp_process_tlp_ack(sk, ack, flag); /* If needed, reset TLP/RTO timer; RACK may later override this. */ diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index 3c65c1a3f944..4bb86580decd 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -551,6 +551,10 @@ struct sock *tcp_create_openreq_child(const struct sock *sk, newtp->syn_data_acked = 0; newtp->rack.mstamp = 0; newtp->rack.advanced = 0; + newtp->rack.reo_wnd_steps = 1; + newtp->rack.last_delivered = 0; + newtp->rack.reo_wnd_persist = 0; + newtp->rack.dsack_seen = 0; __TCP_INC_STATS(sock_net(sk), TCP_MIB_PASSIVEOPENS); } diff --git a/net/ipv4/tcp_recovery.c b/net/ipv4/tcp_recovery.c index ac3e9c6d3a3d..d3ea89020c69 100644 --- a/net/ipv4/tcp_recovery.c +++ b/net/ipv4/tcp_recovery.c @@ -44,6 +44,7 @@ static bool tcp_rack_sent_after(u64 t1, u64 t2, u32 seq1, u32 seq2) static void tcp_rack_detect_loss(struct sock *sk, u32 *reo_timeout) { struct tcp_sock *tp = tcp_sk(sk); + u32 min_rtt = tcp_min_rtt(tp); struct sk_buff *skb, *n; u32 reo_wnd; @@ -54,8 +55,10 @@ static void tcp_rack_detect_loss(struct sock *sk, u32 *reo_timeout) * to queuing or delayed ACKs. */ reo_wnd = 1000; - if ((tp->rack.reord || !tp->lost_out) && tcp_min_rtt(tp) != ~0U) - reo_wnd = max(tcp_min_rtt(tp) >> 2, reo_wnd); + if ((tp->rack.reord || !tp->lost_out) && min_rtt != ~0U) { + reo_wnd = max((min_rtt >> 2) * tp->rack.reo_wnd_steps, reo_wnd); + reo_wnd = min(reo_wnd, tp->srtt_us >> 3); + } list_for_each_entry_safe(skb, n, &tp->tsorted_sent_queue, tcp_tsorted_anchor) { @@ -160,3 +163,44 @@ void tcp_rack_reo_timeout(struct sock *sk) if (inet_csk(sk)->icsk_pending != ICSK_TIME_RETRANS) tcp_rearm_rto(sk); } + +/* Updates the RACK's reo_wnd based on DSACK and no. of recoveries. + * + * If DSACK is received, increment reo_wnd by min_rtt/4 (upper bounded + * by srtt), since there is possibility that spurious retransmission was + * due to reordering delay longer than reo_wnd. + * + * Persist the current reo_wnd value for TCP_RACK_RECOVERY_THRESH (16) + * no. of successful recoveries (accounts for full DSACK-based loss + * recovery undo). After that, reset it to default (min_rtt/4). + * + * At max, reo_wnd is incremented only once per rtt. So that the new + * DSACK on which we are reacting, is due to the spurious retx (approx) + * after the reo_wnd has been updated last time. + * + * reo_wnd is tracked in terms of steps (of min_rtt/4), rather than + * absolute value to account for change in rtt. + */ +void tcp_rack_update_reo_wnd(struct sock *sk, struct rate_sample *rs) +{ + struct tcp_sock *tp = tcp_sk(sk); + + if (sock_net(sk)->ipv4.sysctl_tcp_recovery & TCP_RACK_STATIC_REO_WND || + !rs->prior_delivered) + return; + + /* Disregard DSACK if a rtt has not passed since we adjusted reo_wnd */ + if (before(rs->prior_delivered, tp->rack.last_delivered)) + tp->rack.dsack_seen = 0; + + /* Adjust the reo_wnd if update is pending */ + if (tp->rack.dsack_seen) { + tp->rack.reo_wnd_steps = min_t(u32, 0xFF, + tp->rack.reo_wnd_steps + 1); + tp->rack.dsack_seen = 0; + tp->rack.last_delivered = tp->delivered; + tp->rack.reo_wnd_persist = TCP_RACK_RECOVERY_THRESH; + } else if (!tp->rack.reo_wnd_persist) { + tp->rack.reo_wnd_steps = 1; + } +} -- cgit v1.2.3 From b4d9421098f863bc7f92a7be8fb21e32fa5df99e Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Tue, 31 Oct 2017 10:07:05 -0400 Subject: ftrace/docs: Add documentation on how to use ftrace from within the kernel With the coming removal of jprobes, using ftrace callbacks is one of the utilities that replace the jprobes functionality. Having a document that explains how to use ftrace as such will help in the transition from jprobes to ftrace. This document is for kernel developers that require attaching a callback to a function within the kernel. Link: http://lkml.kernel.org/r/150724519527.5014.10207042218696587159.stgit@devbox Signed-off-by: Steven Rostedt (VMware) [jc: fixed one formatting issue that broke the docs build] Signed-off-by: Jonathan Corbet --- Documentation/trace/ftrace-uses.rst | 293 ++++++++++++++++++++++++++++++++++++ 1 file changed, 293 insertions(+) create mode 100644 Documentation/trace/ftrace-uses.rst (limited to 'Documentation') diff --git a/Documentation/trace/ftrace-uses.rst b/Documentation/trace/ftrace-uses.rst new file mode 100644 index 000000000000..8494a801d341 --- /dev/null +++ b/Documentation/trace/ftrace-uses.rst @@ -0,0 +1,293 @@ +================================= +Using ftrace to hook to functions +================================= + +.. Copyright 2017 VMware Inc. +.. Author: Steven Rostedt +.. License: The GNU Free Documentation License, Version 1.2 +.. (dual licensed under the GPL v2) + +Written for: 4.14 + +Introduction +============ + +The ftrace infrastructure was originially created to attach callbacks to the +beginning of functions in order to record and trace the flow of the kernel. +But callbacks to the start of a function can have other use cases. Either +for live kernel patching, or for security monitoring. This document describes +how to use ftrace to implement your own function callbacks. + + +The ftrace context +================== + +WARNING: The ability to add a callback to almost any function within the +kernel comes with risks. A callback can be called from any context +(normal, softirq, irq, and NMI). Callbacks can also be called just before +going to idle, during CPU bring up and takedown, or going to user space. +This requires extra care to what can be done inside a callback. A callback +can be called outside the protective scope of RCU. + +The ftrace infrastructure has some protections agains recursions and RCU +but one must still be very careful how they use the callbacks. + + +The ftrace_ops structure +======================== + +To register a function callback, a ftrace_ops is required. This structure +is used to tell ftrace what function should be called as the callback +as well as what protections the callback will perform and not require +ftrace to handle. + +There is only one field that is needed to be set when registering +an ftrace_ops with ftrace:: + +.. code-block: c + + struct ftrace_ops ops = { + .func = my_callback_func, + .flags = MY_FTRACE_FLAGS + .private = any_private_data_structure, + }; + +Both .flags and .private are optional. Only .func is required. + +To enable tracing call:: + +.. c:function:: register_ftrace_function(&ops); + +To disable tracing call:: + +.. c:function:: unregister_ftrace_function(&ops); + +The above is defined by including the header:: + +.. c:function:: #include + +The registered callback will start being called some time after the +register_ftrace_function() is called and before it returns. The exact time +that callbacks start being called is dependent upon architecture and scheduling +of services. The callback itself will have to handle any synchronization if it +must begin at an exact moment. + +The unregister_ftrace_function() will guarantee that the callback is +no longer being called by functions after the unregister_ftrace_function() +returns. Note that to perform this guarantee, the unregister_ftrace_function() +may take some time to finish. + + +The callback function +===================== + +The prototype of the callback function is as follows (as of v4.14):: + +.. code-block: c + + void callback_func(unsigned long ip, unsigned long parent_ip, + struct ftrace_ops *op, struct pt_regs *regs); + +@ip + This is the instruction pointer of the function that is being traced. + (where the fentry or mcount is within the function) + +@parent_ip + This is the instruction pointer of the function that called the + the function being traced (where the call of the function occurred). + +@op + This is a pointer to ftrace_ops that was used to register the callback. + This can be used to pass data to the callback via the private pointer. + +@regs + If the FTRACE_OPS_FL_SAVE_REGS or FTRACE_OPS_FL_SAVE_REGS_IF_SUPPORTED + flags are set in the ftrace_ops structure, then this will be pointing + to the pt_regs structure like it would be if an breakpoint was placed + at the start of the function where ftrace was tracing. Otherwise it + either contains garbage, or NULL. + + +The ftrace FLAGS +================ + +The ftrace_ops flags are all defined and documented in include/linux/ftrace.h. +Some of the flags are used for internal infrastructure of ftrace, but the +ones that users should be aware of are the following: + +FTRACE_OPS_FL_SAVE_REGS + If the callback requires reading or modifying the pt_regs + passed to the callback, then it must set this flag. Registering + a ftrace_ops with this flag set on an architecture that does not + support passing of pt_regs to the callback will fail. + +FTRACE_OPS_FL_SAVE_REGS_IF_SUPPORTED + Similar to SAVE_REGS but the registering of a + ftrace_ops on an architecture that does not support passing of regs + will not fail with this flag set. But the callback must check if + regs is NULL or not to determine if the architecture supports it. + +FTRACE_OPS_FL_RECURSION_SAFE + By default, a wrapper is added around the callback to + make sure that recursion of the function does not occur. That is, + if a function that is called as a result of the callback's execution + is also traced, ftrace will prevent the callback from being called + again. But this wrapper adds some overhead, and if the callback is + safe from recursion, it can set this flag to disable the ftrace + protection. + + Note, if this flag is set, and recursion does occur, it could cause + the system to crash, and possibly reboot via a triple fault. + + It is OK if another callback traces a function that is called by a + callback that is marked recursion safe. Recursion safe callbacks + must never trace any function that are called by the callback + itself or any nested functions that those functions call. + + If this flag is set, it is possible that the callback will also + be called with preemption enabled (when CONFIG_PREEMPT is set), + but this is not guaranteed. + +FTRACE_OPS_FL_IPMODIFY + Requires FTRACE_OPS_FL_SAVE_REGS set. If the callback is to "hijack" + the traced function (have another function called instead of the + traced function), it requires setting this flag. This is what live + kernel patches uses. Without this flag the pt_regs->ip can not be + modified. + + Note, only one ftrace_ops with FTRACE_OPS_FL_IPMODIFY set may be + registered to any given function at a time. + +FTRACE_OPS_FL_RCU + If this is set, then the callback will only be called by functions + where RCU is "watching". This is required if the callback function + performs any rcu_read_lock() operation. + + RCU stops watching when the system goes idle, the time when a CPU + is taken down and comes back online, and when entering from kernel + to user space and back to kernel space. During these transitions, + a callback may be executed and RCU synchronization will not protect + it. + + +Filtering which functions to trace +================================== + +If a callback is only to be called from specific functions, a filter must be +set up. The filters are added by name, or ip if it is known. + +.. code-block: c + + int ftrace_set_filter(struct ftrace_ops *ops, unsigned char *buf, + int len, int reset); + +@ops + The ops to set the filter with + +@buf + The string that holds the function filter text. +@len + The length of the string. + +@reset + Non-zero to reset all filters before applying this filter. + +Filters denote which functions should be enabled when tracing is enabled. +If @buf is NULL and reset is set, all functions will be enabled for tracing. + +The @buf can also be a glob expression to enable all functions that +match a specific pattern. + +See Filter Commands in :file:`Documentation/trace/ftrace.txt`. + +To just trace the schedule function:: + +.. code-block: c + + ret = ftrace_set_filter(&ops, "schedule", strlen("schedule"), 0); + +To add more functions, call the ftrace_set_filter() more than once with the +@reset parameter set to zero. To remove the current filter set and replace it +with new functions defined by @buf, have @reset be non-zero. + +To remove all the filtered functions and trace all functions:: + +.. code-block: c + + ret = ftrace_set_filter(&ops, NULL, 0, 1); + + +Sometimes more than one function has the same name. To trace just a specific +function in this case, ftrace_set_filter_ip() can be used. + +.. code-block: c + + ret = ftrace_set_filter_ip(&ops, ip, 0, 0); + +Although the ip must be the address where the call to fentry or mcount is +located in the function. This function is used by perf and kprobes that +gets the ip address from the user (usually using debug info from the kernel). + +If a glob is used to set the filter, functions can be added to a "notrace" +list that will prevent those functions from calling the callback. +The "notrace" list takes precedence over the "filter" list. If the +two lists are non-empty and contain the same functions, the callback will not +be called by any function. + +An empty "notrace" list means to allow all functions defined by the filter +to be traced. + +.. code-block: c + + int ftrace_set_notrace(struct ftrace_ops *ops, unsigned char *buf, + int len, int reset); + +This takes the same parameters as ftrace_set_filter() but will add the +functions it finds to not be traced. This is a separate list from the +filter list, and this function does not modify the filter list. + +A non-zero @reset will clear the "notrace" list before adding functions +that match @buf to it. + +Clearing the "notrace" list is the same as clearing the filter list + +.. code-block: c + + ret = ftrace_set_notrace(&ops, NULL, 0, 1); + +The filter and notrace lists may be changed at any time. If only a set of +functions should call the callback, it is best to set the filters before +registering the callback. But the changes may also happen after the callback +has been registered. + +If a filter is in place, and the @reset is non-zero, and @buf contains a +matching glob to functions, the switch will happen during the time of +the ftrace_set_filter() call. At no time will all functions call the callback. + +.. code-block: c + + ftrace_set_filter(&ops, "schedule", strlen("schedule"), 1); + + register_ftrace_function(&ops); + + msleep(10); + + ftrace_set_filter(&ops, "try_to_wake_up", strlen("try_to_wake_up"), 1); + +is not the same as: + +.. code-block: c + + ftrace_set_filter(&ops, "schedule", strlen("schedule"), 1); + + register_ftrace_function(&ops); + + msleep(10); + + ftrace_set_filter(&ops, NULL, 0, 1); + + ftrace_set_filter(&ops, "try_to_wake_up", strlen("try_to_wake_up"), 0); + +As the latter will have a short time where all functions will call +the callback, between the time of the reset, and the time of the +new setting of the filter. -- cgit v1.2.3 From 8a0698c19e37019562d2504d4d724811d7fd411c Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Fri, 3 Nov 2017 10:19:37 +0530 Subject: dmaengine: doc: Add ReST style dmaengine document This removes the index file and adds the index.rst as placeholder and update driver-api index to add dmaengine. As a consequence dmaengine documentation will be in driver-api/ Signed-off-by: Vinod Koul Signed-off-by: Jonathan Corbet --- Documentation/dmaengine/00-INDEX | 8 -------- Documentation/driver-api/dmaengine/index.rst | 13 +++++++++++++ Documentation/driver-api/index.rst | 1 + 3 files changed, 14 insertions(+), 8 deletions(-) delete mode 100644 Documentation/dmaengine/00-INDEX create mode 100644 Documentation/driver-api/dmaengine/index.rst (limited to 'Documentation') diff --git a/Documentation/dmaengine/00-INDEX b/Documentation/dmaengine/00-INDEX deleted file mode 100644 index 07de6573d22b..000000000000 --- a/Documentation/dmaengine/00-INDEX +++ /dev/null @@ -1,8 +0,0 @@ -00-INDEX - - this file. -client.txt - -the DMA Engine API Guide. -dmatest.txt - - how to compile, configure and use the dmatest system. -provider.txt - - the DMA controller API. \ No newline at end of file diff --git a/Documentation/driver-api/dmaengine/index.rst b/Documentation/driver-api/dmaengine/index.rst new file mode 100644 index 000000000000..8c90a6443810 --- /dev/null +++ b/Documentation/driver-api/dmaengine/index.rst @@ -0,0 +1,13 @@ +======================= +DMAEngine documentation +======================= + +DMAEngine documentation provides documents for various aspects of DMAEngine +framework. + +.. only:: subproject + + Indices + ======= + + * :ref:`genindex` diff --git a/Documentation/driver-api/index.rst b/Documentation/driver-api/index.rst index 9c20624842b7..d17a9876b473 100644 --- a/Documentation/driver-api/index.rst +++ b/Documentation/driver-api/index.rst @@ -46,6 +46,7 @@ available subsections can be seen below. pinctl gpio misc_devices + dmaengine/index .. only:: subproject and html -- cgit v1.2.3 From 77fe661214d784878d666a226116057191de097b Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Fri, 3 Nov 2017 10:19:38 +0530 Subject: dmaengine: doc: ReSTize provider doc This moves and converts provider file with some format changes for RST style Signed-off-by: Vinod Koul Signed-off-by: Jonathan Corbet --- Documentation/dmaengine/provider.txt | 424 -------------------- Documentation/driver-api/dmaengine/index.rst | 11 + Documentation/driver-api/dmaengine/provider.rst | 508 ++++++++++++++++++++++++ 3 files changed, 519 insertions(+), 424 deletions(-) delete mode 100644 Documentation/dmaengine/provider.txt create mode 100644 Documentation/driver-api/dmaengine/provider.rst (limited to 'Documentation') diff --git a/Documentation/dmaengine/provider.txt b/Documentation/dmaengine/provider.txt deleted file mode 100644 index 5dbe054a40ad..000000000000 --- a/Documentation/dmaengine/provider.txt +++ /dev/null @@ -1,424 +0,0 @@ -DMAengine controller documentation -================================== - -Hardware Introduction -+++++++++++++++++++++ - -Most of the Slave DMA controllers have the same general principles of -operations. - -They have a given number of channels to use for the DMA transfers, and -a given number of requests lines. - -Requests and channels are pretty much orthogonal. Channels can be used -to serve several to any requests. To simplify, channels are the -entities that will be doing the copy, and requests what endpoints are -involved. - -The request lines actually correspond to physical lines going from the -DMA-eligible devices to the controller itself. Whenever the device -will want to start a transfer, it will assert a DMA request (DRQ) by -asserting that request line. - -A very simple DMA controller would only take into account a single -parameter: the transfer size. At each clock cycle, it would transfer a -byte of data from one buffer to another, until the transfer size has -been reached. - -That wouldn't work well in the real world, since slave devices might -require a specific number of bits to be transferred in a single -cycle. For example, we may want to transfer as much data as the -physical bus allows to maximize performances when doing a simple -memory copy operation, but our audio device could have a narrower FIFO -that requires data to be written exactly 16 or 24 bits at a time. This -is why most if not all of the DMA controllers can adjust this, using a -parameter called the transfer width. - -Moreover, some DMA controllers, whenever the RAM is used as a source -or destination, can group the reads or writes in memory into a buffer, -so instead of having a lot of small memory accesses, which is not -really efficient, you'll get several bigger transfers. This is done -using a parameter called the burst size, that defines how many single -reads/writes it's allowed to do without the controller splitting the -transfer into smaller sub-transfers. - -Our theoretical DMA controller would then only be able to do transfers -that involve a single contiguous block of data. However, some of the -transfers we usually have are not, and want to copy data from -non-contiguous buffers to a contiguous buffer, which is called -scatter-gather. - -DMAEngine, at least for mem2dev transfers, require support for -scatter-gather. So we're left with two cases here: either we have a -quite simple DMA controller that doesn't support it, and we'll have to -implement it in software, or we have a more advanced DMA controller, -that implements in hardware scatter-gather. - -The latter are usually programmed using a collection of chunks to -transfer, and whenever the transfer is started, the controller will go -over that collection, doing whatever we programmed there. - -This collection is usually either a table or a linked list. You will -then push either the address of the table and its number of elements, -or the first item of the list to one channel of the DMA controller, -and whenever a DRQ will be asserted, it will go through the collection -to know where to fetch the data from. - -Either way, the format of this collection is completely dependent on -your hardware. Each DMA controller will require a different structure, -but all of them will require, for every chunk, at least the source and -destination addresses, whether it should increment these addresses or -not and the three parameters we saw earlier: the burst size, the -transfer width and the transfer size. - -The one last thing is that usually, slave devices won't issue DRQ by -default, and you have to enable this in your slave device driver first -whenever you're willing to use DMA. - -These were just the general memory-to-memory (also called mem2mem) or -memory-to-device (mem2dev) kind of transfers. Most devices often -support other kind of transfers or memory operations that dmaengine -support and will be detailed later in this document. - -DMA Support in Linux -++++++++++++++++++++ - -Historically, DMA controller drivers have been implemented using the -async TX API, to offload operations such as memory copy, XOR, -cryptography, etc., basically any memory to memory operation. - -Over time, the need for memory to device transfers arose, and -dmaengine was extended. Nowadays, the async TX API is written as a -layer on top of dmaengine, and acts as a client. Still, dmaengine -accommodates that API in some cases, and made some design choices to -ensure that it stayed compatible. - -For more information on the Async TX API, please look the relevant -documentation file in Documentation/crypto/async-tx-api.txt. - -DMAEngine Registration -++++++++++++++++++++++ - -struct dma_device Initialization --------------------------------- - -Just like any other kernel framework, the whole DMAEngine registration -relies on the driver filling a structure and registering against the -framework. In our case, that structure is dma_device. - -The first thing you need to do in your driver is to allocate this -structure. Any of the usual memory allocators will do, but you'll also -need to initialize a few fields in there: - - * channels: should be initialized as a list using the - INIT_LIST_HEAD macro for example - - * src_addr_widths: - - should contain a bitmask of the supported source transfer width - - * dst_addr_widths: - - should contain a bitmask of the supported destination transfer - width - - * directions: - - should contain a bitmask of the supported slave directions - (i.e. excluding mem2mem transfers) - - * residue_granularity: - - Granularity of the transfer residue reported to dma_set_residue. - - This can be either: - + Descriptor - -> Your device doesn't support any kind of residue - reporting. The framework will only know that a particular - transaction descriptor is done. - + Segment - -> Your device is able to report which chunks have been - transferred - + Burst - -> Your device is able to report which burst have been - transferred - - * dev: should hold the pointer to the struct device associated - to your current driver instance. - -Supported transaction types ---------------------------- - -The next thing you need is to set which transaction types your device -(and driver) supports. - -Our dma_device structure has a field called cap_mask that holds the -various types of transaction supported, and you need to modify this -mask using the dma_cap_set function, with various flags depending on -transaction types you support as an argument. - -All those capabilities are defined in the dma_transaction_type enum, -in include/linux/dmaengine.h - -Currently, the types available are: - * DMA_MEMCPY - - The device is able to do memory to memory copies - - * DMA_XOR - - The device is able to perform XOR operations on memory areas - - Used to accelerate XOR intensive tasks, such as RAID5 - - * DMA_XOR_VAL - - The device is able to perform parity check using the XOR - algorithm against a memory buffer. - - * DMA_PQ - - The device is able to perform RAID6 P+Q computations, P being a - simple XOR, and Q being a Reed-Solomon algorithm. - - * DMA_PQ_VAL - - The device is able to perform parity check using RAID6 P+Q - algorithm against a memory buffer. - - * DMA_INTERRUPT - - The device is able to trigger a dummy transfer that will - generate periodic interrupts - - Used by the client drivers to register a callback that will be - called on a regular basis through the DMA controller interrupt - - * DMA_PRIVATE - - The devices only supports slave transfers, and as such isn't - available for async transfers. - - * DMA_ASYNC_TX - - Must not be set by the device, and will be set by the framework - if needed - - /* TODO: What is it about? */ - - * DMA_SLAVE - - The device can handle device to memory transfers, including - scatter-gather transfers. - - While in the mem2mem case we were having two distinct types to - deal with a single chunk to copy or a collection of them, here, - we just have a single transaction type that is supposed to - handle both. - - If you want to transfer a single contiguous memory buffer, - simply build a scatter list with only one item. - - * DMA_CYCLIC - - The device can handle cyclic transfers. - - A cyclic transfer is a transfer where the chunk collection will - loop over itself, with the last item pointing to the first. - - It's usually used for audio transfers, where you want to operate - on a single ring buffer that you will fill with your audio data. - - * DMA_INTERLEAVE - - The device supports interleaved transfer. - - These transfers can transfer data from a non-contiguous buffer - to a non-contiguous buffer, opposed to DMA_SLAVE that can - transfer data from a non-contiguous data set to a continuous - destination buffer. - - It's usually used for 2d content transfers, in which case you - want to transfer a portion of uncompressed data directly to the - display to print it - -These various types will also affect how the source and destination -addresses change over time. - -Addresses pointing to RAM are typically incremented (or decremented) -after each transfer. In case of a ring buffer, they may loop -(DMA_CYCLIC). Addresses pointing to a device's register (e.g. a FIFO) -are typically fixed. - -Device operations ------------------ - -Our dma_device structure also requires a few function pointers in -order to implement the actual logic, now that we described what -operations we were able to perform. - -The functions that we have to fill in there, and hence have to -implement, obviously depend on the transaction types you reported as -supported. - - * device_alloc_chan_resources - * device_free_chan_resources - - These functions will be called whenever a driver will call - dma_request_channel or dma_release_channel for the first/last - time on the channel associated to that driver. - - They are in charge of allocating/freeing all the needed - resources in order for that channel to be useful for your - driver. - - These functions can sleep. - - * device_prep_dma_* - - These functions are matching the capabilities you registered - previously. - - These functions all take the buffer or the scatterlist relevant - for the transfer being prepared, and should create a hardware - descriptor or a list of hardware descriptors from it - - These functions can be called from an interrupt context - - Any allocation you might do should be using the GFP_NOWAIT - flag, in order not to potentially sleep, but without depleting - the emergency pool either. - - Drivers should try to pre-allocate any memory they might need - during the transfer setup at probe time to avoid putting to - much pressure on the nowait allocator. - - - It should return a unique instance of the - dma_async_tx_descriptor structure, that further represents this - particular transfer. - - - This structure can be initialized using the function - dma_async_tx_descriptor_init. - - You'll also need to set two fields in this structure: - + flags: - TODO: Can it be modified by the driver itself, or - should it be always the flags passed in the arguments - - + tx_submit: A pointer to a function you have to implement, - that is supposed to push the current - transaction descriptor to a pending queue, waiting - for issue_pending to be called. - - In this structure the function pointer callback_result can be - initialized in order for the submitter to be notified that a - transaction has completed. In the earlier code the function pointer - callback has been used. However it does not provide any status to the - transaction and will be deprecated. The result structure defined as - dmaengine_result that is passed in to callback_result has two fields: - + result: This provides the transfer result defined by - dmaengine_tx_result. Either success or some error - condition. - + residue: Provides the residue bytes of the transfer for those that - support residue. - - * device_issue_pending - - Takes the first transaction descriptor in the pending queue, - and starts the transfer. Whenever that transfer is done, it - should move to the next transaction in the list. - - This function can be called in an interrupt context - - * device_tx_status - - Should report the bytes left to go over on the given channel - - Should only care about the transaction descriptor passed as - argument, not the currently active one on a given channel - - The tx_state argument might be NULL - - Should use dma_set_residue to report it - - In the case of a cyclic transfer, it should only take into - account the current period. - - This function can be called in an interrupt context. - - * device_config - - Reconfigures the channel with the configuration given as - argument - - This command should NOT perform synchronously, or on any - currently queued transfers, but only on subsequent ones - - In this case, the function will receive a dma_slave_config - structure pointer as an argument, that will detail which - configuration to use. - - Even though that structure contains a direction field, this - field is deprecated in favor of the direction argument given to - the prep_* functions - - This call is mandatory for slave operations only. This should NOT be - set or expected to be set for memcpy operations. - If a driver support both, it should use this call for slave - operations only and not for memcpy ones. - - * device_pause - - Pauses a transfer on the channel - - This command should operate synchronously on the channel, - pausing right away the work of the given channel - - * device_resume - - Resumes a transfer on the channel - - This command should operate synchronously on the channel, - resuming right away the work of the given channel - - * device_terminate_all - - Aborts all the pending and ongoing transfers on the channel - - For aborted transfers the complete callback should not be called - - Can be called from atomic context or from within a complete - callback of a descriptor. Must not sleep. Drivers must be able - to handle this correctly. - - Termination may be asynchronous. The driver does not have to - wait until the currently active transfer has completely stopped. - See device_synchronize. - - * device_synchronize - - Must synchronize the termination of a channel to the current - context. - - Must make sure that memory for previously submitted - descriptors is no longer accessed by the DMA controller. - - Must make sure that all complete callbacks for previously - submitted descriptors have finished running and none are - scheduled to run. - - May sleep. - - -Misc notes (stuff that should be documented, but don't really know -where to put them) ------------------------------------------------------------------- - * dma_run_dependencies - - Should be called at the end of an async TX transfer, and can be - ignored in the slave transfers case. - - Makes sure that dependent operations are run before marking it - as complete. - - * dma_cookie_t - - it's a DMA transaction ID that will increment over time. - - Not really relevant any more since the introduction of virt-dma - that abstracts it away. - - * DMA_CTRL_ACK - - If clear, the descriptor cannot be reused by provider until the - client acknowledges receipt, i.e. has has a chance to establish any - dependency chains - - This can be acked by invoking async_tx_ack() - - If set, does not mean descriptor can be reused - - * DMA_CTRL_REUSE - - If set, the descriptor can be reused after being completed. It should - not be freed by provider if this flag is set. - - The descriptor should be prepared for reuse by invoking - dmaengine_desc_set_reuse() which will set DMA_CTRL_REUSE. - - dmaengine_desc_set_reuse() will succeed only when channel support - reusable descriptor as exhibited by capabilities - - As a consequence, if a device driver wants to skip the dma_map_sg() and - dma_unmap_sg() in between 2 transfers, because the DMA'd data wasn't used, - it can resubmit the transfer right after its completion. - - Descriptor can be freed in few ways - - Clearing DMA_CTRL_REUSE by invoking dmaengine_desc_clear_reuse() - and submitting for last txn - - Explicitly invoking dmaengine_desc_free(), this can succeed only - when DMA_CTRL_REUSE is already set - - Terminating the channel - - * DMA_PREP_CMD - - If set, the client driver tells DMA controller that passed data in DMA - API is command data. - - Interpretation of command data is DMA controller specific. It can be - used for issuing commands to other peripherals/register reads/register - writes for which the descriptor should be in different format from - normal data descriptors. - -General Design Notes --------------------- - -Most of the DMAEngine drivers you'll see are based on a similar design -that handles the end of transfer interrupts in the handler, but defer -most work to a tasklet, including the start of a new transfer whenever -the previous transfer ended. - -This is a rather inefficient design though, because the inter-transfer -latency will be not only the interrupt latency, but also the -scheduling latency of the tasklet, which will leave the channel idle -in between, which will slow down the global transfer rate. - -You should avoid this kind of practice, and instead of electing a new -transfer in your tasklet, move that part to the interrupt handler in -order to have a shorter idle window (that we can't really avoid -anyway). - -Glossary --------- - -Burst: A number of consecutive read or write operations - that can be queued to buffers before being flushed to - memory. -Chunk: A contiguous collection of bursts -Transfer: A collection of chunks (be it contiguous or not) diff --git a/Documentation/driver-api/dmaengine/index.rst b/Documentation/driver-api/dmaengine/index.rst index 8c90a6443810..eee0377e0d7b 100644 --- a/Documentation/driver-api/dmaengine/index.rst +++ b/Documentation/driver-api/dmaengine/index.rst @@ -5,6 +5,17 @@ DMAEngine documentation DMAEngine documentation provides documents for various aspects of DMAEngine framework. +DMAEngine documentation +----------------------- + +This book helps with DMAengine internal APIs and guide for DMAEngine device +driver writers. + +.. toctree:: + :maxdepth: 1 + + provider + .. only:: subproject Indices diff --git a/Documentation/driver-api/dmaengine/provider.rst b/Documentation/driver-api/dmaengine/provider.rst new file mode 100644 index 000000000000..814acb4d2294 --- /dev/null +++ b/Documentation/driver-api/dmaengine/provider.rst @@ -0,0 +1,508 @@ +================================== +DMAengine controller documentation +================================== + +Hardware Introduction +===================== + +Most of the Slave DMA controllers have the same general principles of +operations. + +They have a given number of channels to use for the DMA transfers, and +a given number of requests lines. + +Requests and channels are pretty much orthogonal. Channels can be used +to serve several to any requests. To simplify, channels are the +entities that will be doing the copy, and requests what endpoints are +involved. + +The request lines actually correspond to physical lines going from the +DMA-eligible devices to the controller itself. Whenever the device +will want to start a transfer, it will assert a DMA request (DRQ) by +asserting that request line. + +A very simple DMA controller would only take into account a single +parameter: the transfer size. At each clock cycle, it would transfer a +byte of data from one buffer to another, until the transfer size has +been reached. + +That wouldn't work well in the real world, since slave devices might +require a specific number of bits to be transferred in a single +cycle. For example, we may want to transfer as much data as the +physical bus allows to maximize performances when doing a simple +memory copy operation, but our audio device could have a narrower FIFO +that requires data to be written exactly 16 or 24 bits at a time. This +is why most if not all of the DMA controllers can adjust this, using a +parameter called the transfer width. + +Moreover, some DMA controllers, whenever the RAM is used as a source +or destination, can group the reads or writes in memory into a buffer, +so instead of having a lot of small memory accesses, which is not +really efficient, you'll get several bigger transfers. This is done +using a parameter called the burst size, that defines how many single +reads/writes it's allowed to do without the controller splitting the +transfer into smaller sub-transfers. + +Our theoretical DMA controller would then only be able to do transfers +that involve a single contiguous block of data. However, some of the +transfers we usually have are not, and want to copy data from +non-contiguous buffers to a contiguous buffer, which is called +scatter-gather. + +DMAEngine, at least for mem2dev transfers, require support for +scatter-gather. So we're left with two cases here: either we have a +quite simple DMA controller that doesn't support it, and we'll have to +implement it in software, or we have a more advanced DMA controller, +that implements in hardware scatter-gather. + +The latter are usually programmed using a collection of chunks to +transfer, and whenever the transfer is started, the controller will go +over that collection, doing whatever we programmed there. + +This collection is usually either a table or a linked list. You will +then push either the address of the table and its number of elements, +or the first item of the list to one channel of the DMA controller, +and whenever a DRQ will be asserted, it will go through the collection +to know where to fetch the data from. + +Either way, the format of this collection is completely dependent on +your hardware. Each DMA controller will require a different structure, +but all of them will require, for every chunk, at least the source and +destination addresses, whether it should increment these addresses or +not and the three parameters we saw earlier: the burst size, the +transfer width and the transfer size. + +The one last thing is that usually, slave devices won't issue DRQ by +default, and you have to enable this in your slave device driver first +whenever you're willing to use DMA. + +These were just the general memory-to-memory (also called mem2mem) or +memory-to-device (mem2dev) kind of transfers. Most devices often +support other kind of transfers or memory operations that dmaengine +support and will be detailed later in this document. + +DMA Support in Linux +==================== + +Historically, DMA controller drivers have been implemented using the +async TX API, to offload operations such as memory copy, XOR, +cryptography, etc., basically any memory to memory operation. + +Over time, the need for memory to device transfers arose, and +dmaengine was extended. Nowadays, the async TX API is written as a +layer on top of dmaengine, and acts as a client. Still, dmaengine +accommodates that API in some cases, and made some design choices to +ensure that it stayed compatible. + +For more information on the Async TX API, please look the relevant +documentation file in Documentation/crypto/async-tx-api.txt. + +DMAEngine APIs +============== + +``struct dma_device`` Initialization +------------------------------------ + +Just like any other kernel framework, the whole DMAEngine registration +relies on the driver filling a structure and registering against the +framework. In our case, that structure is dma_device. + +The first thing you need to do in your driver is to allocate this +structure. Any of the usual memory allocators will do, but you'll also +need to initialize a few fields in there: + +- channels: should be initialized as a list using the + INIT_LIST_HEAD macro for example + +- src_addr_widths: + should contain a bitmask of the supported source transfer width + +- dst_addr_widths: + should contain a bitmask of the supported destination transfer width + +- directions: + should contain a bitmask of the supported slave directions + (i.e. excluding mem2mem transfers) + +- residue_granularity: + + - Granularity of the transfer residue reported to dma_set_residue. + This can be either: + + - Descriptor + + - Your device doesn't support any kind of residue + reporting. The framework will only know that a particular + transaction descriptor is done. + + - Segment + + - Your device is able to report which chunks have been transferred + + - Burst + + - Your device is able to report which burst have been transferred + + - dev: should hold the pointer to the ``struct device`` associated + to your current driver instance. + +Supported transaction types +--------------------------- + +The next thing you need is to set which transaction types your device +(and driver) supports. + +Our ``dma_device structure`` has a field called cap_mask that holds the +various types of transaction supported, and you need to modify this +mask using the dma_cap_set function, with various flags depending on +transaction types you support as an argument. + +All those capabilities are defined in the ``dma_transaction_type enum``, +in ``include/linux/dmaengine.h`` + +Currently, the types available are: + +- DMA_MEMCPY + + - The device is able to do memory to memory copies + +- DMA_XOR + + - The device is able to perform XOR operations on memory areas + + - Used to accelerate XOR intensive tasks, such as RAID5 + +- DMA_XOR_VAL + + - The device is able to perform parity check using the XOR + algorithm against a memory buffer. + +- DMA_PQ + + - The device is able to perform RAID6 P+Q computations, P being a + simple XOR, and Q being a Reed-Solomon algorithm. + +- DMA_PQ_VAL + + - The device is able to perform parity check using RAID6 P+Q + algorithm against a memory buffer. + +- DMA_INTERRUPT + + - The device is able to trigger a dummy transfer that will + generate periodic interrupts + + - Used by the client drivers to register a callback that will be + called on a regular basis through the DMA controller interrupt + +- DMA_PRIVATE + + - The devices only supports slave transfers, and as such isn't + available for async transfers. + +- DMA_ASYNC_TX + + - Must not be set by the device, and will be set by the framework + if needed + + - TODO: What is it about? + +- DMA_SLAVE + + - The device can handle device to memory transfers, including + scatter-gather transfers. + + - While in the mem2mem case we were having two distinct types to + deal with a single chunk to copy or a collection of them, here, + we just have a single transaction type that is supposed to + handle both. + + - If you want to transfer a single contiguous memory buffer, + simply build a scatter list with only one item. + +- DMA_CYCLIC + + - The device can handle cyclic transfers. + + - A cyclic transfer is a transfer where the chunk collection will + loop over itself, with the last item pointing to the first. + + - It's usually used for audio transfers, where you want to operate + on a single ring buffer that you will fill with your audio data. + +- DMA_INTERLEAVE + + - The device supports interleaved transfer. + + - These transfers can transfer data from a non-contiguous buffer + to a non-contiguous buffer, opposed to DMA_SLAVE that can + transfer data from a non-contiguous data set to a continuous + destination buffer. + + - It's usually used for 2d content transfers, in which case you + want to transfer a portion of uncompressed data directly to the + display to print it + +These various types will also affect how the source and destination +addresses change over time. + +Addresses pointing to RAM are typically incremented (or decremented) +after each transfer. In case of a ring buffer, they may loop +(DMA_CYCLIC). Addresses pointing to a device's register (e.g. a FIFO) +are typically fixed. + +Device operations +----------------- + +Our dma_device structure also requires a few function pointers in +order to implement the actual logic, now that we described what +operations we were able to perform. + +The functions that we have to fill in there, and hence have to +implement, obviously depend on the transaction types you reported as +supported. + +- ``device_alloc_chan_resources`` + +- ``device_free_chan_resources`` + + - These functions will be called whenever a driver will call + ``dma_request_channel`` or ``dma_release_channel`` for the first/last + time on the channel associated to that driver. + + - They are in charge of allocating/freeing all the needed + resources in order for that channel to be useful for your driver. + + - These functions can sleep. + +- ``device_prep_dma_*`` + + - These functions are matching the capabilities you registered + previously. + + - These functions all take the buffer or the scatterlist relevant + for the transfer being prepared, and should create a hardware + descriptor or a list of hardware descriptors from it + + - These functions can be called from an interrupt context + + - Any allocation you might do should be using the GFP_NOWAIT + flag, in order not to potentially sleep, but without depleting + the emergency pool either. + + - Drivers should try to pre-allocate any memory they might need + during the transfer setup at probe time to avoid putting to + much pressure on the nowait allocator. + + - It should return a unique instance of the + ``dma_async_tx_descriptor structure``, that further represents this + particular transfer. + + - This structure can be initialized using the function + ``dma_async_tx_descriptor_init``. + + - You'll also need to set two fields in this structure: + + - flags: + TODO: Can it be modified by the driver itself, or + should it be always the flags passed in the arguments + + - tx_submit: A pointer to a function you have to implement, + that is supposed to push the current transaction descriptor to a + pending queue, waiting for issue_pending to be called. + + - In this structure the function pointer callback_result can be + initialized in order for the submitter to be notified that a + transaction has completed. In the earlier code the function pointer + callback has been used. However it does not provide any status to the + transaction and will be deprecated. The result structure defined as + ``dmaengine_result`` that is passed in to callback_result + has two fields: + + - result: This provides the transfer result defined by + ``dmaengine_tx_result``. Either success or some error condition. + + - residue: Provides the residue bytes of the transfer for those that + support residue. + +- ``device_issue_pending`` + + - Takes the first transaction descriptor in the pending queue, + and starts the transfer. Whenever that transfer is done, it + should move to the next transaction in the list. + + - This function can be called in an interrupt context + +- ``device_tx_status`` + + - Should report the bytes left to go over on the given channel + + - Should only care about the transaction descriptor passed as + argument, not the currently active one on a given channel + + - The tx_state argument might be NULL + + - Should use dma_set_residue to report it + + - In the case of a cyclic transfer, it should only take into + account the current period. + + - This function can be called in an interrupt context. + +- device_config + + - Reconfigures the channel with the configuration given as argument + + - This command should NOT perform synchronously, or on any + currently queued transfers, but only on subsequent ones + + - In this case, the function will receive a ``dma_slave_config`` + structure pointer as an argument, that will detail which + configuration to use. + + - Even though that structure contains a direction field, this + field is deprecated in favor of the direction argument given to + the prep_* functions + + - This call is mandatory for slave operations only. This should NOT be + set or expected to be set for memcpy operations. + If a driver support both, it should use this call for slave + operations only and not for memcpy ones. + +- device_pause + + - Pauses a transfer on the channel + + - This command should operate synchronously on the channel, + pausing right away the work of the given channel + +- device_resume + + - Resumes a transfer on the channel + + - This command should operate synchronously on the channel, + resuming right away the work of the given channel + +- device_terminate_all + + - Aborts all the pending and ongoing transfers on the channel + + - For aborted transfers the complete callback should not be called + + - Can be called from atomic context or from within a complete + callback of a descriptor. Must not sleep. Drivers must be able + to handle this correctly. + + - Termination may be asynchronous. The driver does not have to + wait until the currently active transfer has completely stopped. + See device_synchronize. + +- device_synchronize + + - Must synchronize the termination of a channel to the current + context. + + - Must make sure that memory for previously submitted + descriptors is no longer accessed by the DMA controller. + + - Must make sure that all complete callbacks for previously + submitted descriptors have finished running and none are + scheduled to run. + + - May sleep. + + +Misc notes +========== + +(stuff that should be documented, but don't really know +where to put them) + +``dma_run_dependencies`` + +- Should be called at the end of an async TX transfer, and can be + ignored in the slave transfers case. + +- Makes sure that dependent operations are run before marking it + as complete. + +dma_cookie_t + +- it's a DMA transaction ID that will increment over time. + +- Not really relevant any more since the introduction of ``virt-dma`` + that abstracts it away. + +DMA_CTRL_ACK + +- If clear, the descriptor cannot be reused by provider until the + client acknowledges receipt, i.e. has has a chance to establish any + dependency chains + +- This can be acked by invoking async_tx_ack() + +- If set, does not mean descriptor can be reused + +DMA_CTRL_REUSE + +- If set, the descriptor can be reused after being completed. It should + not be freed by provider if this flag is set. + +- The descriptor should be prepared for reuse by invoking + ``dmaengine_desc_set_reuse()`` which will set DMA_CTRL_REUSE. + +- ``dmaengine_desc_set_reuse()`` will succeed only when channel support + reusable descriptor as exhibited by capabilities + +- As a consequence, if a device driver wants to skip the + ``dma_map_sg()`` and ``dma_unmap_sg()`` in between 2 transfers, + because the DMA'd data wasn't used, it can resubmit the transfer right after + its completion. + +- Descriptor can be freed in few ways + + - Clearing DMA_CTRL_REUSE by invoking + ``dmaengine_desc_clear_reuse()`` and submitting for last txn + + - Explicitly invoking ``dmaengine_desc_free()``, this can succeed only + when DMA_CTRL_REUSE is already set + + - Terminating the channel + +- DMA_PREP_CMD + + - If set, the client driver tells DMA controller that passed data in DMA + API is command data. + + - Interpretation of command data is DMA controller specific. It can be + used for issuing commands to other peripherals/register reads/register + writes for which the descriptor should be in different format from + normal data descriptors. + +General Design Notes +==================== + +Most of the DMAEngine drivers you'll see are based on a similar design +that handles the end of transfer interrupts in the handler, but defer +most work to a tasklet, including the start of a new transfer whenever +the previous transfer ended. + +This is a rather inefficient design though, because the inter-transfer +latency will be not only the interrupt latency, but also the +scheduling latency of the tasklet, which will leave the channel idle +in between, which will slow down the global transfer rate. + +You should avoid this kind of practice, and instead of electing a new +transfer in your tasklet, move that part to the interrupt handler in +order to have a shorter idle window (that we can't really avoid +anyway). + +Glossary +======== + +- Burst: A number of consecutive read or write operations that + can be queued to buffers before being flushed to memory. + +- Chunk: A contiguous collection of bursts + +- Transfer: A collection of chunks (be it contiguous or not) -- cgit v1.2.3 From eeb1c6435293e9d3c30b21579bd5154c013f2843 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Fri, 3 Nov 2017 10:19:39 +0530 Subject: dmaengine: doc: ReSTize client API doc This converts and moves client API file with some format changes for RST style Signed-off-by: Vinod Koul Signed-off-by: Jonathan Corbet --- Documentation/dmaengine/client.txt | 222 --------------------- Documentation/driver-api/dmaengine/client.rst | 275 ++++++++++++++++++++++++++ Documentation/driver-api/dmaengine/index.rst | 11 ++ 3 files changed, 286 insertions(+), 222 deletions(-) delete mode 100644 Documentation/dmaengine/client.txt create mode 100644 Documentation/driver-api/dmaengine/client.rst (limited to 'Documentation') diff --git a/Documentation/dmaengine/client.txt b/Documentation/dmaengine/client.txt deleted file mode 100644 index c72b4563de10..000000000000 --- a/Documentation/dmaengine/client.txt +++ /dev/null @@ -1,222 +0,0 @@ - DMA Engine API Guide - ==================== - - Vinod Koul - -NOTE: For DMA Engine usage in async_tx please see: - Documentation/crypto/async-tx-api.txt - - -Below is a guide to device driver writers on how to use the Slave-DMA API of the -DMA Engine. This is applicable only for slave DMA usage only. - -The slave DMA usage consists of following steps: -1. Allocate a DMA slave channel -2. Set slave and controller specific parameters -3. Get a descriptor for transaction -4. Submit the transaction -5. Issue pending requests and wait for callback notification - -1. Allocate a DMA slave channel - - Channel allocation is slightly different in the slave DMA context, - client drivers typically need a channel from a particular DMA - controller only and even in some cases a specific channel is desired. - To request a channel dma_request_chan() API is used. - - Interface: - struct dma_chan *dma_request_chan(struct device *dev, const char *name); - - Which will find and return the 'name' DMA channel associated with the 'dev' - device. The association is done via DT, ACPI or board file based - dma_slave_map matching table. - - A channel allocated via this interface is exclusive to the caller, - until dma_release_channel() is called. - -2. Set slave and controller specific parameters - - Next step is always to pass some specific information to the DMA - driver. Most of the generic information which a slave DMA can use - is in struct dma_slave_config. This allows the clients to specify - DMA direction, DMA addresses, bus widths, DMA burst lengths etc - for the peripheral. - - If some DMA controllers have more parameters to be sent then they - should try to embed struct dma_slave_config in their controller - specific structure. That gives flexibility to client to pass more - parameters, if required. - - Interface: - int dmaengine_slave_config(struct dma_chan *chan, - struct dma_slave_config *config) - - Please see the dma_slave_config structure definition in dmaengine.h - for a detailed explanation of the struct members. Please note - that the 'direction' member will be going away as it duplicates the - direction given in the prepare call. - -3. Get a descriptor for transaction - - For slave usage the various modes of slave transfers supported by the - DMA-engine are: - - slave_sg - DMA a list of scatter gather buffers from/to a peripheral - dma_cyclic - Perform a cyclic DMA operation from/to a peripheral till the - operation is explicitly stopped. - interleaved_dma - This is common to Slave as well as M2M clients. For slave - address of devices' fifo could be already known to the driver. - Various types of operations could be expressed by setting - appropriate values to the 'dma_interleaved_template' members. - - A non-NULL return of this transfer API represents a "descriptor" for - the given transaction. - - Interface: - struct dma_async_tx_descriptor *dmaengine_prep_slave_sg( - struct dma_chan *chan, struct scatterlist *sgl, - unsigned int sg_len, enum dma_data_direction direction, - unsigned long flags); - - struct dma_async_tx_descriptor *dmaengine_prep_dma_cyclic( - struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, - size_t period_len, enum dma_data_direction direction); - - struct dma_async_tx_descriptor *dmaengine_prep_interleaved_dma( - struct dma_chan *chan, struct dma_interleaved_template *xt, - unsigned long flags); - - The peripheral driver is expected to have mapped the scatterlist for - the DMA operation prior to calling dmaengine_prep_slave_sg(), and must - keep the scatterlist mapped until the DMA operation has completed. - The scatterlist must be mapped using the DMA struct device. - If a mapping needs to be synchronized later, dma_sync_*_for_*() must be - called using the DMA struct device, too. - So, normal setup should look like this: - - nr_sg = dma_map_sg(chan->device->dev, sgl, sg_len); - if (nr_sg == 0) - /* error */ - - desc = dmaengine_prep_slave_sg(chan, sgl, nr_sg, direction, flags); - - Once a descriptor has been obtained, the callback information can be - added and the descriptor must then be submitted. Some DMA engine - drivers may hold a spinlock between a successful preparation and - submission so it is important that these two operations are closely - paired. - - Note: - Although the async_tx API specifies that completion callback - routines cannot submit any new operations, this is not the - case for slave/cyclic DMA. - - For slave DMA, the subsequent transaction may not be available - for submission prior to callback function being invoked, so - slave DMA callbacks are permitted to prepare and submit a new - transaction. - - For cyclic DMA, a callback function may wish to terminate the - DMA via dmaengine_terminate_async(). - - Therefore, it is important that DMA engine drivers drop any - locks before calling the callback function which may cause a - deadlock. - - Note that callbacks will always be invoked from the DMA - engines tasklet, never from interrupt context. - -4. Submit the transaction - - Once the descriptor has been prepared and the callback information - added, it must be placed on the DMA engine drivers pending queue. - - Interface: - dma_cookie_t dmaengine_submit(struct dma_async_tx_descriptor *desc) - - This returns a cookie can be used to check the progress of DMA engine - activity via other DMA engine calls not covered in this document. - - dmaengine_submit() will not start the DMA operation, it merely adds - it to the pending queue. For this, see step 5, dma_async_issue_pending. - -5. Issue pending DMA requests and wait for callback notification - - The transactions in the pending queue can be activated by calling the - issue_pending API. If channel is idle then the first transaction in - queue is started and subsequent ones queued up. - - On completion of each DMA operation, the next in queue is started and - a tasklet triggered. The tasklet will then call the client driver - completion callback routine for notification, if set. - - Interface: - void dma_async_issue_pending(struct dma_chan *chan); - -Further APIs: - -1. int dmaengine_terminate_sync(struct dma_chan *chan) - int dmaengine_terminate_async(struct dma_chan *chan) - int dmaengine_terminate_all(struct dma_chan *chan) /* DEPRECATED */ - - This causes all activity for the DMA channel to be stopped, and may - discard data in the DMA FIFO which hasn't been fully transferred. - No callback functions will be called for any incomplete transfers. - - Two variants of this function are available. - - dmaengine_terminate_async() might not wait until the DMA has been fully - stopped or until any running complete callbacks have finished. But it is - possible to call dmaengine_terminate_async() from atomic context or from - within a complete callback. dmaengine_synchronize() must be called before it - is safe to free the memory accessed by the DMA transfer or free resources - accessed from within the complete callback. - - dmaengine_terminate_sync() will wait for the transfer and any running - complete callbacks to finish before it returns. But the function must not be - called from atomic context or from within a complete callback. - - dmaengine_terminate_all() is deprecated and should not be used in new code. - -2. int dmaengine_pause(struct dma_chan *chan) - - This pauses activity on the DMA channel without data loss. - -3. int dmaengine_resume(struct dma_chan *chan) - - Resume a previously paused DMA channel. It is invalid to resume a - channel which is not currently paused. - -4. enum dma_status dma_async_is_tx_complete(struct dma_chan *chan, - dma_cookie_t cookie, dma_cookie_t *last, dma_cookie_t *used) - - This can be used to check the status of the channel. Please see - the documentation in include/linux/dmaengine.h for a more complete - description of this API. - - This can be used in conjunction with dma_async_is_complete() and - the cookie returned from dmaengine_submit() to check for - completion of a specific DMA transaction. - - Note: - Not all DMA engine drivers can return reliable information for - a running DMA channel. It is recommended that DMA engine users - pause or stop (via dmaengine_terminate_all()) the channel before - using this API. - -5. void dmaengine_synchronize(struct dma_chan *chan) - - Synchronize the termination of the DMA channel to the current context. - - This function should be used after dmaengine_terminate_async() to synchronize - the termination of the DMA channel to the current context. The function will - wait for the transfer and any running complete callbacks to finish before it - returns. - - If dmaengine_terminate_async() is used to stop the DMA channel this function - must be called before it is safe to free memory accessed by previously - submitted descriptors or to free any resources accessed within the complete - callback of previously submitted descriptors. - - The behavior of this function is undefined if dma_async_issue_pending() has - been called between dmaengine_terminate_async() and this function. diff --git a/Documentation/driver-api/dmaengine/client.rst b/Documentation/driver-api/dmaengine/client.rst new file mode 100644 index 000000000000..6245c99af8c1 --- /dev/null +++ b/Documentation/driver-api/dmaengine/client.rst @@ -0,0 +1,275 @@ +==================== +DMA Engine API Guide +==================== + +Vinod Koul + +.. note:: For DMA Engine usage in async_tx please see: + ``Documentation/crypto/async-tx-api.txt`` + + +Below is a guide to device driver writers on how to use the Slave-DMA API of the +DMA Engine. This is applicable only for slave DMA usage only. + +DMA usage +========= + +The slave DMA usage consists of following steps: + +- Allocate a DMA slave channel + +- Set slave and controller specific parameters + +- Get a descriptor for transaction + +- Submit the transaction + +- Issue pending requests and wait for callback notification + +The details of these operations are: + +1. Allocate a DMA slave channel + + Channel allocation is slightly different in the slave DMA context, + client drivers typically need a channel from a particular DMA + controller only and even in some cases a specific channel is desired. + To request a channel dma_request_chan() API is used. + + Interface: + + .. code-block:: c + + struct dma_chan *dma_request_chan(struct device *dev, const char *name); + + Which will find and return the ``name`` DMA channel associated with the 'dev' + device. The association is done via DT, ACPI or board file based + dma_slave_map matching table. + + A channel allocated via this interface is exclusive to the caller, + until dma_release_channel() is called. + +2. Set slave and controller specific parameters + + Next step is always to pass some specific information to the DMA + driver. Most of the generic information which a slave DMA can use + is in struct dma_slave_config. This allows the clients to specify + DMA direction, DMA addresses, bus widths, DMA burst lengths etc + for the peripheral. + + If some DMA controllers have more parameters to be sent then they + should try to embed struct dma_slave_config in their controller + specific structure. That gives flexibility to client to pass more + parameters, if required. + + Interface: + + .. code-block:: c + + int dmaengine_slave_config(struct dma_chan *chan, + struct dma_slave_config *config) + + Please see the dma_slave_config structure definition in dmaengine.h + for a detailed explanation of the struct members. Please note + that the 'direction' member will be going away as it duplicates the + direction given in the prepare call. + +3. Get a descriptor for transaction + + For slave usage the various modes of slave transfers supported by the + DMA-engine are: + + - slave_sg: DMA a list of scatter gather buffers from/to a peripheral + + - dma_cyclic: Perform a cyclic DMA operation from/to a peripheral till the + operation is explicitly stopped. + + - interleaved_dma: This is common to Slave as well as M2M clients. For slave + address of devices' fifo could be already known to the driver. + Various types of operations could be expressed by setting + appropriate values to the 'dma_interleaved_template' members. + + A non-NULL return of this transfer API represents a "descriptor" for + the given transaction. + + Interface: + + .. code-block:: c + + struct dma_async_tx_descriptor *dmaengine_prep_slave_sg( + struct dma_chan *chan, struct scatterlist *sgl, + unsigned int sg_len, enum dma_data_direction direction, + unsigned long flags); + + struct dma_async_tx_descriptor *dmaengine_prep_dma_cyclic( + struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, + size_t period_len, enum dma_data_direction direction); + + struct dma_async_tx_descriptor *dmaengine_prep_interleaved_dma( + struct dma_chan *chan, struct dma_interleaved_template *xt, + unsigned long flags); + + The peripheral driver is expected to have mapped the scatterlist for + the DMA operation prior to calling dmaengine_prep_slave_sg(), and must + keep the scatterlist mapped until the DMA operation has completed. + The scatterlist must be mapped using the DMA struct device. + If a mapping needs to be synchronized later, dma_sync_*_for_*() must be + called using the DMA struct device, too. + So, normal setup should look like this: + + .. code-block:: c + + nr_sg = dma_map_sg(chan->device->dev, sgl, sg_len); + if (nr_sg == 0) + /* error */ + + desc = dmaengine_prep_slave_sg(chan, sgl, nr_sg, direction, flags); + + Once a descriptor has been obtained, the callback information can be + added and the descriptor must then be submitted. Some DMA engine + drivers may hold a spinlock between a successful preparation and + submission so it is important that these two operations are closely + paired. + + .. note:: + + Although the async_tx API specifies that completion callback + routines cannot submit any new operations, this is not the + case for slave/cyclic DMA. + + For slave DMA, the subsequent transaction may not be available + for submission prior to callback function being invoked, so + slave DMA callbacks are permitted to prepare and submit a new + transaction. + + For cyclic DMA, a callback function may wish to terminate the + DMA via dmaengine_terminate_async(). + + Therefore, it is important that DMA engine drivers drop any + locks before calling the callback function which may cause a + deadlock. + + Note that callbacks will always be invoked from the DMA + engines tasklet, never from interrupt context. + +4. Submit the transaction + + Once the descriptor has been prepared and the callback information + added, it must be placed on the DMA engine drivers pending queue. + + Interface: + + .. code-block:: c + + dma_cookie_t dmaengine_submit(struct dma_async_tx_descriptor *desc) + + This returns a cookie can be used to check the progress of DMA engine + activity via other DMA engine calls not covered in this document. + + dmaengine_submit() will not start the DMA operation, it merely adds + it to the pending queue. For this, see step 5, dma_async_issue_pending. + +5. Issue pending DMA requests and wait for callback notification + + The transactions in the pending queue can be activated by calling the + issue_pending API. If channel is idle then the first transaction in + queue is started and subsequent ones queued up. + + On completion of each DMA operation, the next in queue is started and + a tasklet triggered. The tasklet will then call the client driver + completion callback routine for notification, if set. + + Interface: + + .. code-block:: c + + void dma_async_issue_pending(struct dma_chan *chan); + +Further APIs: +------------ + +1. Terminate APIs + + .. code-block:: c + + int dmaengine_terminate_sync(struct dma_chan *chan) + int dmaengine_terminate_async(struct dma_chan *chan) + int dmaengine_terminate_all(struct dma_chan *chan) /* DEPRECATED */ + + This causes all activity for the DMA channel to be stopped, and may + discard data in the DMA FIFO which hasn't been fully transferred. + No callback functions will be called for any incomplete transfers. + + Two variants of this function are available. + + dmaengine_terminate_async() might not wait until the DMA has been fully + stopped or until any running complete callbacks have finished. But it is + possible to call dmaengine_terminate_async() from atomic context or from + within a complete callback. dmaengine_synchronize() must be called before it + is safe to free the memory accessed by the DMA transfer or free resources + accessed from within the complete callback. + + dmaengine_terminate_sync() will wait for the transfer and any running + complete callbacks to finish before it returns. But the function must not be + called from atomic context or from within a complete callback. + + dmaengine_terminate_all() is deprecated and should not be used in new code. + +2. Pause API + + .. code-block:: c + + int dmaengine_pause(struct dma_chan *chan) + + This pauses activity on the DMA channel without data loss. + +3. Resume API + + .. code-block:: c + + int dmaengine_resume(struct dma_chan *chan) + + Resume a previously paused DMA channel. It is invalid to resume a + channel which is not currently paused. + +4. Check Txn complete + + .. code-block:: c + + enum dma_status dma_async_is_tx_complete(struct dma_chan *chan, + dma_cookie_t cookie, dma_cookie_t *last, dma_cookie_t *used) + + This can be used to check the status of the channel. Please see + the documentation in include/linux/dmaengine.h for a more complete + description of this API. + + This can be used in conjunction with dma_async_is_complete() and + the cookie returned from dmaengine_submit() to check for + completion of a specific DMA transaction. + + .. note:: + + Not all DMA engine drivers can return reliable information for + a running DMA channel. It is recommended that DMA engine users + pause or stop (via dmaengine_terminate_all()) the channel before + using this API. + +5. Synchronize termination API + + .. code-block:: c + + void dmaengine_synchronize(struct dma_chan *chan) + + Synchronize the termination of the DMA channel to the current context. + + This function should be used after dmaengine_terminate_async() to synchronize + the termination of the DMA channel to the current context. The function will + wait for the transfer and any running complete callbacks to finish before it + returns. + + If dmaengine_terminate_async() is used to stop the DMA channel this function + must be called before it is safe to free memory accessed by previously + submitted descriptors or to free any resources accessed within the complete + callback of previously submitted descriptors. + + The behavior of this function is undefined if dma_async_issue_pending() has + been called between dmaengine_terminate_async() and this function. diff --git a/Documentation/driver-api/dmaengine/index.rst b/Documentation/driver-api/dmaengine/index.rst index eee0377e0d7b..ffc2b797938c 100644 --- a/Documentation/driver-api/dmaengine/index.rst +++ b/Documentation/driver-api/dmaengine/index.rst @@ -16,6 +16,17 @@ driver writers. provider +DMAEngine client documentation +------------------------------ + +This book is a guide to device driver writers on how to use the Slave-DMA +API of the DMAEngine. This is applicable only for slave DMA usage only. + +.. toctree:: + :maxdepth: 1 + + client + .. only:: subproject Indices -- cgit v1.2.3 From 179a214e9e985ef9b14d7e5d9fff20acddb9315b Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Fri, 3 Nov 2017 10:19:40 +0530 Subject: dmaengine: doc: ReSTize dmatest doc This converts and moves dmatest file with some format changes for RST style Signed-off-by: Vinod Koul Signed-off-by: Jonathan Corbet --- Documentation/dmaengine/dmatest.txt | 92 --------------------- Documentation/driver-api/dmaengine/dmatest.rst | 110 +++++++++++++++++++++++++ Documentation/driver-api/dmaengine/index.rst | 10 +++ 3 files changed, 120 insertions(+), 92 deletions(-) delete mode 100644 Documentation/dmaengine/dmatest.txt create mode 100644 Documentation/driver-api/dmaengine/dmatest.rst (limited to 'Documentation') diff --git a/Documentation/dmaengine/dmatest.txt b/Documentation/dmaengine/dmatest.txt deleted file mode 100644 index fb683c72dea8..000000000000 --- a/Documentation/dmaengine/dmatest.txt +++ /dev/null @@ -1,92 +0,0 @@ - DMA Test Guide - ============== - - Andy Shevchenko - -This small document introduces how to test DMA drivers using dmatest module. - - Part 1 - How to build the test module - -The menuconfig contains an option that could be found by following path: - Device Drivers -> DMA Engine support -> DMA Test client - -In the configuration file the option called CONFIG_DMATEST. The dmatest could -be built as module or inside kernel. Let's consider those cases. - - Part 2 - When dmatest is built as a module... - -Example of usage: - % modprobe dmatest channel=dma0chan0 timeout=2000 iterations=1 run=1 - -...or: - % modprobe dmatest - % echo dma0chan0 > /sys/module/dmatest/parameters/channel - % echo 2000 > /sys/module/dmatest/parameters/timeout - % echo 1 > /sys/module/dmatest/parameters/iterations - % echo 1 > /sys/module/dmatest/parameters/run - -...or on the kernel command line: - - dmatest.channel=dma0chan0 dmatest.timeout=2000 dmatest.iterations=1 dmatest.run=1 - -Hint: available channel list could be extracted by running the following -command: - % ls -1 /sys/class/dma/ - -Once started a message like "dmatest: Started 1 threads using dma0chan0" is -emitted. After that only test failure messages are reported until the test -stops. - -Note that running a new test will not stop any in progress test. - -The following command returns the state of the test. - % cat /sys/module/dmatest/parameters/run - -To wait for test completion userpace can poll 'run' until it is false, or use -the wait parameter. Specifying 'wait=1' when loading the module causes module -initialization to pause until a test run has completed, while reading -/sys/module/dmatest/parameters/wait waits for any running test to complete -before returning. For example, the following scripts wait for 42 tests -to complete before exiting. Note that if 'iterations' is set to 'infinite' then -waiting is disabled. - -Example: - % modprobe dmatest run=1 iterations=42 wait=1 - % modprobe -r dmatest -...or: - % modprobe dmatest run=1 iterations=42 - % cat /sys/module/dmatest/parameters/wait - % modprobe -r dmatest - - Part 3 - When built-in in the kernel... - -The module parameters that is supplied to the kernel command line will be used -for the first performed test. After user gets a control, the test could be -re-run with the same or different parameters. For the details see the above -section "Part 2 - When dmatest is built as a module..." - -In both cases the module parameters are used as the actual values for the test -case. You always could check them at run-time by running - % grep -H . /sys/module/dmatest/parameters/* - - Part 4 - Gathering the test results - -Test results are printed to the kernel log buffer with the format: - -"dmatest: result : : '' with src_off= dst_off= len= ()" - -Example of output: - % dmesg | tail -n 1 - dmatest: result dma0chan0-copy0: #1: No errors with src_off=0x7bf dst_off=0x8ad len=0x3fea (0) - -The message format is unified across the different types of errors. A number in -the parens represents additional information, e.g. error code, error counter, -or status. A test thread also emits a summary line at completion listing the -number of tests executed, number that failed, and a result code. - -Example: - % dmesg | tail -n 1 - dmatest: dma0chan0-copy0: summary 1 test, 0 failures 1000 iops 100000 KB/s (0) - -The details of a data miscompare error are also emitted, but do not follow the -above format. diff --git a/Documentation/driver-api/dmaengine/dmatest.rst b/Documentation/driver-api/dmaengine/dmatest.rst new file mode 100644 index 000000000000..3922c0a3f0c0 --- /dev/null +++ b/Documentation/driver-api/dmaengine/dmatest.rst @@ -0,0 +1,110 @@ +============== +DMA Test Guide +============== + +Andy Shevchenko + +This small document introduces how to test DMA drivers using dmatest module. + +Part 1 - How to build the test module +===================================== + +The menuconfig contains an option that could be found by following path: + Device Drivers -> DMA Engine support -> DMA Test client + +In the configuration file the option called CONFIG_DMATEST. The dmatest could +be built as module or inside kernel. Let's consider those cases. + +Part 2 - When dmatest is built as a module +========================================== + +Example of usage: :: + + % modprobe dmatest channel=dma0chan0 timeout=2000 iterations=1 run=1 + +...or: :: + + % modprobe dmatest + % echo dma0chan0 > /sys/module/dmatest/parameters/channel + % echo 2000 > /sys/module/dmatest/parameters/timeout + % echo 1 > /sys/module/dmatest/parameters/iterations + % echo 1 > /sys/module/dmatest/parameters/run + +...or on the kernel command line: :: + + dmatest.channel=dma0chan0 dmatest.timeout=2000 dmatest.iterations=1 dmatest.run=1 + +..hint:: available channel list could be extracted by running the following + command: + +:: + + % ls -1 /sys/class/dma/ + +Once started a message like "dmatest: Started 1 threads using dma0chan0" is +emitted. After that only test failure messages are reported until the test +stops. + +Note that running a new test will not stop any in progress test. + +The following command returns the state of the test. :: + + % cat /sys/module/dmatest/parameters/run + +To wait for test completion userpace can poll 'run' until it is false, or use +the wait parameter. Specifying 'wait=1' when loading the module causes module +initialization to pause until a test run has completed, while reading +/sys/module/dmatest/parameters/wait waits for any running test to complete +before returning. For example, the following scripts wait for 42 tests +to complete before exiting. Note that if 'iterations' is set to 'infinite' then +waiting is disabled. + +Example: :: + + % modprobe dmatest run=1 iterations=42 wait=1 + % modprobe -r dmatest + +...or: :: + + % modprobe dmatest run=1 iterations=42 + % cat /sys/module/dmatest/parameters/wait + % modprobe -r dmatest + +Part 3 - When built-in in the kernel +==================================== + +The module parameters that is supplied to the kernel command line will be used +for the first performed test. After user gets a control, the test could be +re-run with the same or different parameters. For the details see the above +section "Part 2 - When dmatest is built as a module..." + +In both cases the module parameters are used as the actual values for the test +case. You always could check them at run-time by running :: + + % grep -H . /sys/module/dmatest/parameters/* + +Part 4 - Gathering the test results +=================================== + +Test results are printed to the kernel log buffer with the format: :: + + "dmatest: result : : '' with src_off= dst_off= len= ()" + +Example of output: :: + + + % dmesg | tail -n 1 + dmatest: result dma0chan0-copy0: #1: No errors with src_off=0x7bf dst_off=0x8ad len=0x3fea (0) + +The message format is unified across the different types of errors. A number in +the parens represents additional information, e.g. error code, error counter, +or status. A test thread also emits a summary line at completion listing the +number of tests executed, number that failed, and a result code. + +Example: :: + + % dmesg | tail -n 1 + dmatest: dma0chan0-copy0: summary 1 test, 0 failures 1000 iops 100000 KB/s (0) + +The details of a data miscompare error are also emitted, but do not follow the +above format. diff --git a/Documentation/driver-api/dmaengine/index.rst b/Documentation/driver-api/dmaengine/index.rst index ffc2b797938c..fae852922a49 100644 --- a/Documentation/driver-api/dmaengine/index.rst +++ b/Documentation/driver-api/dmaengine/index.rst @@ -27,6 +27,16 @@ API of the DMAEngine. This is applicable only for slave DMA usage only. client +DMA Test documentation +---------------------- + +This book introduces how to test DMA drivers using dmatest module. + +.. toctree:: + :maxdepth: 1 + + dmatest + .. only:: subproject Indices -- cgit v1.2.3 From fbbe0bff9d2aa6f7b2d34059fca2ee808c04a651 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Fri, 3 Nov 2017 10:19:41 +0530 Subject: dmaengine: doc: ReSTize pxa_dma doc This converts and moves pxa_dma file with some format changes for RST style Signed-off-by: Vinod Koul Signed-off-by: Jonathan Corbet --- Documentation/dmaengine/pxa_dma.txt | 153 -------------------- Documentation/driver-api/dmaengine/index.rst | 10 ++ Documentation/driver-api/dmaengine/pxa_dma.rst | 190 +++++++++++++++++++++++++ 3 files changed, 200 insertions(+), 153 deletions(-) delete mode 100644 Documentation/dmaengine/pxa_dma.txt create mode 100644 Documentation/driver-api/dmaengine/pxa_dma.rst (limited to 'Documentation') diff --git a/Documentation/dmaengine/pxa_dma.txt b/Documentation/dmaengine/pxa_dma.txt deleted file mode 100644 index 0736d44b5438..000000000000 --- a/Documentation/dmaengine/pxa_dma.txt +++ /dev/null @@ -1,153 +0,0 @@ -PXA/MMP - DMA Slave controller -============================== - -Constraints ------------ - a) Transfers hot queuing - A driver submitting a transfer and issuing it should be granted the transfer - is queued even on a running DMA channel. - This implies that the queuing doesn't wait for the previous transfer end, - and that the descriptor chaining is not only done in the irq/tasklet code - triggered by the end of the transfer. - A transfer which is submitted and issued on a phy doesn't wait for a phy to - stop and restart, but is submitted on a "running channel". The other - drivers, especially mmp_pdma waited for the phy to stop before relaunching - a new transfer. - - b) All transfers having asked for confirmation should be signaled - Any issued transfer with DMA_PREP_INTERRUPT should trigger a callback call. - This implies that even if an irq/tasklet is triggered by end of tx1, but - at the time of irq/dma tx2 is already finished, tx1->complete() and - tx2->complete() should be called. - - c) Channel running state - A driver should be able to query if a channel is running or not. For the - multimedia case, such as video capture, if a transfer is submitted and then - a check of the DMA channel reports a "stopped channel", the transfer should - not be issued until the next "start of frame interrupt", hence the need to - know if a channel is in running or stopped state. - - d) Bandwidth guarantee - The PXA architecture has 4 levels of DMAs priorities : high, normal, low. - The high priorities get twice as much bandwidth as the normal, which get twice - as much as the low priorities. - A driver should be able to request a priority, especially the real-time - ones such as pxa_camera with (big) throughputs. - -Design ------- - a) Virtual channels - Same concept as in sa11x0 driver, ie. a driver was assigned a "virtual - channel" linked to the requestor line, and the physical DMA channel is - assigned on the fly when the transfer is issued. - - b) Transfer anatomy for a scatter-gather transfer - +------------+-----+---------------+----------------+-----------------+ - | desc-sg[0] | ... | desc-sg[last] | status updater | finisher/linker | - +------------+-----+---------------+----------------+-----------------+ - - This structure is pointed by dma->sg_cpu. - The descriptors are used as follows : - - desc-sg[i]: i-th descriptor, transferring the i-th sg - element to the video buffer scatter gather - - status updater - Transfers a single u32 to a well known dma coherent memory to leave - a trace that this transfer is done. The "well known" is unique per - physical channel, meaning that a read of this value will tell which - is the last finished transfer at that point in time. - - finisher: has ddadr=DADDR_STOP, dcmd=ENDIRQEN - - linker: has ddadr= desc-sg[0] of next transfer, dcmd=0 - - c) Transfers hot-chaining - Suppose the running chain is : - Buffer 1 Buffer 2 - +---------+----+---+ +----+----+----+---+ - | d0 | .. | dN | l | | d0 | .. | dN | f | - +---------+----+-|-+ ^----+----+----+---+ - | | - +----+ - - After a call to dmaengine_submit(b3), the chain will look like : - Buffer 1 Buffer 2 Buffer 3 - +---------+----+---+ +----+----+----+---+ +----+----+----+---+ - | d0 | .. | dN | l | | d0 | .. | dN | l | | d0 | .. | dN | f | - +---------+----+-|-+ ^----+----+----+-|-+ ^----+----+----+---+ - | | | | - +----+ +----+ - new_link - - If while new_link was created the DMA channel stopped, it is _not_ - restarted. Hot-chaining doesn't break the assumption that - dma_async_issue_pending() is to be used to ensure the transfer is actually started. - - One exception to this rule : - - if Buffer1 and Buffer2 had all their addresses 8 bytes aligned - - and if Buffer3 has at least one address not 4 bytes aligned - - then hot-chaining cannot happen, as the channel must be stopped, the - "align bit" must be set, and the channel restarted As a consequence, - such a transfer tx_submit() will be queued on the submitted queue, and - this specific case if the DMA is already running in aligned mode. - - d) Transfers completion updater - Each time a transfer is completed on a channel, an interrupt might be - generated or not, up to the client's request. But in each case, the last - descriptor of a transfer, the "status updater", will write the latest - transfer being completed into the physical channel's completion mark. - - This will speed up residue calculation, for large transfers such as video - buffers which hold around 6k descriptors or more. This also allows without - any lock to find out what is the latest completed transfer in a running - DMA chain. - - e) Transfers completion, irq and tasklet - When a transfer flagged as "DMA_PREP_INTERRUPT" is finished, the dma irq - is raised. Upon this interrupt, a tasklet is scheduled for the physical - channel. - The tasklet is responsible for : - - reading the physical channel last updater mark - - calling all the transfer callbacks of finished transfers, based on - that mark, and each transfer flags. - If a transfer is completed while this handling is done, a dma irq will - be raised, and the tasklet will be scheduled once again, having a new - updater mark. - - f) Residue - Residue granularity will be descriptor based. The issued but not completed - transfers will be scanned for all of their descriptors against the - currently running descriptor. - - g) Most complicated case of driver's tx queues - The most tricky situation is when : - - there are not "acked" transfers (tx0) - - a driver submitted an aligned tx1, not chained - - a driver submitted an aligned tx2 => tx2 is cold chained to tx1 - - a driver issued tx1+tx2 => channel is running in aligned mode - - a driver submitted an aligned tx3 => tx3 is hot-chained - - a driver submitted an unaligned tx4 => tx4 is put in submitted queue, - not chained - - a driver issued tx4 => tx4 is put in issued queue, not chained - - a driver submitted an aligned tx5 => tx5 is put in submitted queue, not - chained - - a driver submitted an aligned tx6 => tx6 is put in submitted queue, - cold chained to tx5 - - This translates into (after tx4 is issued) : - - issued queue - +-----+ +-----+ +-----+ +-----+ - | tx1 | | tx2 | | tx3 | | tx4 | - +---|-+ ^---|-+ ^-----+ +-----+ - | | | | - +---+ +---+ - - submitted queue - +-----+ +-----+ - | tx5 | | tx6 | - +---|-+ ^-----+ - | | - +---+ - - completed queue : empty - - allocated queue : tx0 - - It should be noted that after tx3 is completed, the channel is stopped, and - restarted in "unaligned mode" to handle tx4. - -Author: Robert Jarzmik diff --git a/Documentation/driver-api/dmaengine/index.rst b/Documentation/driver-api/dmaengine/index.rst index fae852922a49..3026fa975937 100644 --- a/Documentation/driver-api/dmaengine/index.rst +++ b/Documentation/driver-api/dmaengine/index.rst @@ -37,6 +37,16 @@ This book introduces how to test DMA drivers using dmatest module. dmatest +PXA DMA documentation +---------------------- + +This book adds some notes about PXA DMA + +.. toctree:: + :maxdepth: 1 + + pxa_dma + .. only:: subproject Indices diff --git a/Documentation/driver-api/dmaengine/pxa_dma.rst b/Documentation/driver-api/dmaengine/pxa_dma.rst new file mode 100644 index 000000000000..442ee691a190 --- /dev/null +++ b/Documentation/driver-api/dmaengine/pxa_dma.rst @@ -0,0 +1,190 @@ +============================== +PXA/MMP - DMA Slave controller +============================== + +Constraints +=========== + +a) Transfers hot queuing +A driver submitting a transfer and issuing it should be granted the transfer +is queued even on a running DMA channel. +This implies that the queuing doesn't wait for the previous transfer end, +and that the descriptor chaining is not only done in the irq/tasklet code +triggered by the end of the transfer. +A transfer which is submitted and issued on a phy doesn't wait for a phy to +stop and restart, but is submitted on a "running channel". The other +drivers, especially mmp_pdma waited for the phy to stop before relaunching +a new transfer. + +b) All transfers having asked for confirmation should be signaled +Any issued transfer with DMA_PREP_INTERRUPT should trigger a callback call. +This implies that even if an irq/tasklet is triggered by end of tx1, but +at the time of irq/dma tx2 is already finished, tx1->complete() and +tx2->complete() should be called. + +c) Channel running state +A driver should be able to query if a channel is running or not. For the +multimedia case, such as video capture, if a transfer is submitted and then +a check of the DMA channel reports a "stopped channel", the transfer should +not be issued until the next "start of frame interrupt", hence the need to +know if a channel is in running or stopped state. + +d) Bandwidth guarantee +The PXA architecture has 4 levels of DMAs priorities : high, normal, low. +The high priorities get twice as much bandwidth as the normal, which get twice +as much as the low priorities. +A driver should be able to request a priority, especially the real-time +ones such as pxa_camera with (big) throughputs. + +Design +====== +a) Virtual channels +Same concept as in sa11x0 driver, ie. a driver was assigned a "virtual +channel" linked to the requestor line, and the physical DMA channel is +assigned on the fly when the transfer is issued. + +b) Transfer anatomy for a scatter-gather transfer + +:: + + +------------+-----+---------------+----------------+-----------------+ + | desc-sg[0] | ... | desc-sg[last] | status updater | finisher/linker | + +------------+-----+---------------+----------------+-----------------+ + +This structure is pointed by dma->sg_cpu. +The descriptors are used as follows : + + - desc-sg[i]: i-th descriptor, transferring the i-th sg + element to the video buffer scatter gather + + - status updater + Transfers a single u32 to a well known dma coherent memory to leave + a trace that this transfer is done. The "well known" is unique per + physical channel, meaning that a read of this value will tell which + is the last finished transfer at that point in time. + + - finisher: has ddadr=DADDR_STOP, dcmd=ENDIRQEN + + - linker: has ddadr= desc-sg[0] of next transfer, dcmd=0 + +c) Transfers hot-chaining +Suppose the running chain is: + +:: + + Buffer 1 Buffer 2 + +---------+----+---+ +----+----+----+---+ + | d0 | .. | dN | l | | d0 | .. | dN | f | + +---------+----+-|-+ ^----+----+----+---+ + | | + +----+ + +After a call to dmaengine_submit(b3), the chain will look like: + +:: + + Buffer 1 Buffer 2 Buffer 3 + +---------+----+---+ +----+----+----+---+ +----+----+----+---+ + | d0 | .. | dN | l | | d0 | .. | dN | l | | d0 | .. | dN | f | + +---------+----+-|-+ ^----+----+----+-|-+ ^----+----+----+---+ + | | | | + +----+ +----+ + new_link + +If while new_link was created the DMA channel stopped, it is _not_ +restarted. Hot-chaining doesn't break the assumption that +dma_async_issue_pending() is to be used to ensure the transfer is actually started. + +One exception to this rule : + +- if Buffer1 and Buffer2 had all their addresses 8 bytes aligned + +- and if Buffer3 has at least one address not 4 bytes aligned + +- then hot-chaining cannot happen, as the channel must be stopped, the + "align bit" must be set, and the channel restarted As a consequence, + such a transfer tx_submit() will be queued on the submitted queue, and + this specific case if the DMA is already running in aligned mode. + +d) Transfers completion updater +Each time a transfer is completed on a channel, an interrupt might be +generated or not, up to the client's request. But in each case, the last +descriptor of a transfer, the "status updater", will write the latest +transfer being completed into the physical channel's completion mark. + +This will speed up residue calculation, for large transfers such as video +buffers which hold around 6k descriptors or more. This also allows without +any lock to find out what is the latest completed transfer in a running +DMA chain. + +e) Transfers completion, irq and tasklet +When a transfer flagged as "DMA_PREP_INTERRUPT" is finished, the dma irq +is raised. Upon this interrupt, a tasklet is scheduled for the physical +channel. + +The tasklet is responsible for : + +- reading the physical channel last updater mark + +- calling all the transfer callbacks of finished transfers, based on + that mark, and each transfer flags. + +If a transfer is completed while this handling is done, a dma irq will +be raised, and the tasklet will be scheduled once again, having a new +updater mark. + +f) Residue +Residue granularity will be descriptor based. The issued but not completed +transfers will be scanned for all of their descriptors against the +currently running descriptor. + +g) Most complicated case of driver's tx queues +The most tricky situation is when : + + - there are not "acked" transfers (tx0) + + - a driver submitted an aligned tx1, not chained + + - a driver submitted an aligned tx2 => tx2 is cold chained to tx1 + + - a driver issued tx1+tx2 => channel is running in aligned mode + + - a driver submitted an aligned tx3 => tx3 is hot-chained + + - a driver submitted an unaligned tx4 => tx4 is put in submitted queue, + not chained + + - a driver issued tx4 => tx4 is put in issued queue, not chained + + - a driver submitted an aligned tx5 => tx5 is put in submitted queue, not + chained + + - a driver submitted an aligned tx6 => tx6 is put in submitted queue, + cold chained to tx5 + + This translates into (after tx4 is issued) : + + - issued queue + + :: + + +-----+ +-----+ +-----+ +-----+ + | tx1 | | tx2 | | tx3 | | tx4 | + +---|-+ ^---|-+ ^-----+ +-----+ + | | | | + +---+ +---+ + - submitted queue + +-----+ +-----+ + | tx5 | | tx6 | + +---|-+ ^-----+ + | | + +---+ + +- completed queue : empty + +- allocated queue : tx0 + +It should be noted that after tx3 is completed, the channel is stopped, and +restarted in "unaligned mode" to handle tx4. + +Author: Robert Jarzmik -- cgit v1.2.3 From c02b1a9b41c2e728289f96850580a3651e0a8b5f Mon Sep 17 00:00:00 2001 From: Mateusz Guzik Date: Tue, 3 Oct 2017 12:58:15 +0200 Subject: vfs: grab the lock instead of blocking in __fd_install during resizing Explicit locking in the fallback case provides a safe state of the table. Getting rid of blocking semantics makes __fd_install usable again in non-sleepable contexts, which easies backporting efforts. There is a side effect of slightly nicer assembly for the common case as might_sleep can now be removed. Signed-off-by: Mateusz Guzik Signed-off-by: Al Viro --- Documentation/filesystems/porting | 4 ---- fs/file.c | 11 +++++++---- 2 files changed, 7 insertions(+), 8 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index 93e0a2404532..17bb4dc28fae 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting @@ -501,10 +501,6 @@ in your dentry operations instead. is non-NULL. Note that link body isn't available anymore, so if you need it, store it as cookie. -- -[mandatory] - __fd_install() & fd_install() can now sleep. Callers should not - hold a spinlock or other resources that do not allow a schedule. --- [mandatory] any symlink that might use page_follow_link_light/page_put_link() must have inode_nohighmem(inode) called before anything might start playing with diff --git a/fs/file.c b/fs/file.c index 9d047bd046b0..4115503bb575 100644 --- a/fs/file.c +++ b/fs/file.c @@ -592,13 +592,16 @@ void __fd_install(struct files_struct *files, unsigned int fd, { struct fdtable *fdt; - might_sleep(); rcu_read_lock_sched(); - while (unlikely(files->resize_in_progress)) { + if (unlikely(files->resize_in_progress)) { rcu_read_unlock_sched(); - wait_event(files->resize_wait, !files->resize_in_progress); - rcu_read_lock_sched(); + spin_lock(&files->file_lock); + fdt = files_fdtable(files); + BUG_ON(fdt->fd[fd] != NULL); + rcu_assign_pointer(fdt->fd[fd], file); + spin_unlock(&files->file_lock); + return; } /* coupled with smp_wmb() in expand_fdtable() */ smp_rmb(); -- cgit v1.2.3 From 80d421450187e894af841849d66614a0456912f9 Mon Sep 17 00:00:00 2001 From: Yunlong Song Date: Fri, 27 Oct 2017 20:45:05 +0800 Subject: f2fs: support soft block reservation It supports to extend reserved_blocks sysfs interface to be soft threshold, which allows user configure it exceeding current available user space. This patch also introduces a new sysfs interface called current_reserved_blocks, which shows the current blocks that have already been reserved. Signed-off-by: Yunlong Song Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- Documentation/ABI/testing/sysfs-fs-f2fs | 13 ++++++++++++- fs/f2fs/f2fs.h | 13 +++++++++++-- fs/f2fs/super.c | 3 ++- fs/f2fs/sysfs.c | 15 ++++++++++++--- 4 files changed, 37 insertions(+), 7 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 11b7f4ebea7c..7562b0d42105 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -138,7 +138,18 @@ What: /sys/fs/f2fs//reserved_blocks Date: June 2017 Contact: "Chao Yu" Description: - Controls current reserved blocks in system. + Controls target reserved blocks in system, the threshold + is soft, it could exceed current available user space. + +What: /sys/fs/f2fs//current_reserved_blocks +Date: October 2017 +Contact: "Yunlong Song" +Contact: "Chao Yu" +Description: + Shows current reserved blocks in system, it may be temporarily + smaller than target_reserved_blocks, but will gradually + increase to target_reserved_blocks when more free blocks are + freed by user later. What: /sys/fs/f2fs//gc_urgent Date: August 2017 diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 13a96b8aa2d7..5ed40fbd1a36 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1082,6 +1082,7 @@ struct f2fs_sb_info { block_t discard_blks; /* discard command candidats */ block_t last_valid_block_count; /* for recovery */ block_t reserved_blocks; /* configurable reserved blocks */ + block_t current_reserved_blocks; /* current reserved blocks */ u32 s_next_generation; /* for NFS support */ @@ -1557,7 +1558,8 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, spin_lock(&sbi->stat_lock); sbi->total_valid_block_count += (block_t)(*count); - avail_user_block_count = sbi->user_block_count - sbi->reserved_blocks; + avail_user_block_count = sbi->user_block_count - + sbi->current_reserved_blocks; if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) { diff = sbi->total_valid_block_count - avail_user_block_count; *count -= diff; @@ -1591,6 +1593,10 @@ static inline void dec_valid_block_count(struct f2fs_sb_info *sbi, f2fs_bug_on(sbi, sbi->total_valid_block_count < (block_t) count); f2fs_bug_on(sbi, inode->i_blocks < sectors); sbi->total_valid_block_count -= (block_t)count; + if (sbi->reserved_blocks && + sbi->current_reserved_blocks < sbi->reserved_blocks) + sbi->current_reserved_blocks = min(sbi->reserved_blocks, + sbi->current_reserved_blocks + count); spin_unlock(&sbi->stat_lock); f2fs_i_blocks_write(inode, count, false, true); } @@ -1737,7 +1743,7 @@ static inline int inc_valid_node_count(struct f2fs_sb_info *sbi, spin_lock(&sbi->stat_lock); valid_block_count = sbi->total_valid_block_count + 1; - if (unlikely(valid_block_count + sbi->reserved_blocks > + if (unlikely(valid_block_count + sbi->current_reserved_blocks > sbi->user_block_count)) { spin_unlock(&sbi->stat_lock); goto enospc; @@ -1780,6 +1786,9 @@ static inline void dec_valid_node_count(struct f2fs_sb_info *sbi, sbi->total_valid_node_count--; sbi->total_valid_block_count--; + if (sbi->reserved_blocks && + sbi->current_reserved_blocks < sbi->reserved_blocks) + sbi->current_reserved_blocks++; spin_unlock(&sbi->stat_lock); diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 213d2c1e5759..dab1fedf7148 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -987,7 +987,7 @@ static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) buf->f_blocks = total_count - start_count; buf->f_bfree = user_block_count - valid_user_blocks(sbi) + ovp_count; buf->f_bavail = user_block_count - valid_user_blocks(sbi) - - sbi->reserved_blocks; + sbi->current_reserved_blocks; avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; @@ -2458,6 +2458,7 @@ try_onemore: le64_to_cpu(sbi->ckpt->valid_block_count); sbi->last_valid_block_count = sbi->total_valid_block_count; sbi->reserved_blocks = 0; + sbi->current_reserved_blocks = 0; for (i = 0; i < NR_INODE_TYPE; i++) { INIT_LIST_HEAD(&sbi->inode_list[i]); diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index e09e59cc678a..4166ac74e837 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -30,7 +30,7 @@ enum { FAULT_INFO_RATE, /* struct f2fs_fault_info */ FAULT_INFO_TYPE, /* struct f2fs_fault_info */ #endif - RESERVED_BLOCKS, + RESERVED_BLOCKS, /* struct f2fs_sb_info */ }; struct f2fs_attr { @@ -114,6 +114,12 @@ static ssize_t features_show(struct f2fs_attr *a, return len; } +static ssize_t current_reserved_blocks_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%u\n", sbi->current_reserved_blocks); +} + static ssize_t f2fs_sbi_show(struct f2fs_attr *a, struct f2fs_sb_info *sbi, char *buf) { @@ -153,12 +159,13 @@ static ssize_t f2fs_sbi_store(struct f2fs_attr *a, #endif if (a->struct_type == RESERVED_BLOCKS) { spin_lock(&sbi->stat_lock); - if ((unsigned long)sbi->total_valid_block_count + t > - (unsigned long)sbi->user_block_count) { + if (t > (unsigned long)sbi->user_block_count) { spin_unlock(&sbi->stat_lock); return -EINVAL; } *ui = t; + sbi->current_reserved_blocks = min(sbi->reserved_blocks, + sbi->user_block_count - valid_user_blocks(sbi)); spin_unlock(&sbi->stat_lock); return count; } @@ -293,6 +300,7 @@ F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type); F2FS_GENERAL_RO_ATTR(dirty_segments); F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes); F2FS_GENERAL_RO_ATTR(features); +F2FS_GENERAL_RO_ATTR(current_reserved_blocks); #ifdef CONFIG_F2FS_FS_ENCRYPTION F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO); @@ -338,6 +346,7 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(lifetime_write_kbytes), ATTR_LIST(features), ATTR_LIST(reserved_blocks), + ATTR_LIST(current_reserved_blocks), NULL, }; -- cgit v1.2.3 From b32d73abc6f0a63503f68a7227b1d46aff1f46af Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Sat, 28 Oct 2017 16:52:29 +0800 Subject: f2fs: add missing sysfs description There are some missing sysfs entries' description in document, add them. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- Documentation/ABI/testing/sysfs-fs-f2fs | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index 7562b0d42105..fc1dff659df4 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -51,6 +51,12 @@ Description: Controls the dirty page count condition for the in-place-update policies. +What: /sys/fs/f2fs//min_hot_blocks +Date: March 2017 +Contact: "Jaegeuk Kim" +Description: + Controls the dirty page count condition for redefining hot data. + What: /sys/fs/f2fs//max_small_discards Date: November 2013 Contact: "Jaegeuk Kim" @@ -102,6 +108,12 @@ Contact: "Jaegeuk Kim" Description: Controls the idle timing. +What: /sys/fs/f2fs//iostat_enable +Date: August 2017 +Contact: "Chao Yu" +Description: + Controls to enable/disable IO stat. + What: /sys/fs/f2fs//ra_nid_pages Date: October 2015 Contact: "Chao Yu" @@ -122,6 +134,12 @@ Contact: "Shuoran Liu" Description: Shows total written kbytes issued to disk. +What: /sys/fs/f2fs//feature +Date: July 2017 +Contact: "Jaegeuk Kim" +Description: + Shows all enabled features in current device. + What: /sys/fs/f2fs//inject_rate Date: May 2016 Contact: "Sheng Yong" -- cgit v1.2.3 From a2a12b679f367014fa86d2cf3309e37c59e155c2 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Sat, 28 Oct 2017 16:52:33 +0800 Subject: f2fs: export SSR allocation threshold This patch exports min_ssr_segments threshold in sysfs to let user control triggering SSR allocation flexibly. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- Documentation/ABI/testing/sysfs-fs-f2fs | 6 ++++++ fs/f2fs/f2fs.h | 2 ++ fs/f2fs/segment.c | 3 ++- fs/f2fs/sysfs.c | 2 ++ 4 files changed, 12 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs index fc1dff659df4..a7799c2fca28 100644 --- a/Documentation/ABI/testing/sysfs-fs-f2fs +++ b/Documentation/ABI/testing/sysfs-fs-f2fs @@ -57,6 +57,12 @@ Contact: "Jaegeuk Kim" Description: Controls the dirty page count condition for redefining hot data. +What: /sys/fs/f2fs//min_ssr_sections +Date: October 2017 +Contact: "Chao Yu" +Description: + Controls the fee section threshold to trigger SSR allocation. + What: /sys/fs/f2fs//max_small_discards Date: November 2013 Contact: "Jaegeuk Kim" diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 2b9b1d8b3870..ee10c5206b2f 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -840,6 +840,7 @@ struct f2fs_sm_info { unsigned int min_ipu_util; /* in-place-update threshold */ unsigned int min_fsync_blocks; /* threshold for fsync */ unsigned int min_hot_blocks; /* threshold for hot block allocation */ + unsigned int min_ssr_sections; /* threshold to trigger SSR allocation */ /* for flush command control */ struct flush_cmd_control *fcc_info; @@ -1077,6 +1078,7 @@ struct f2fs_sb_info { int active_logs; /* # of active logs */ int dir_level; /* directory level */ int inline_xattr_size; /* inline xattr size */ + unsigned int trigger_ssr_threshold; /* threshold to trigger ssr */ block_t user_block_count; /* # of user blocks */ block_t total_valid_block_count; /* # of valid blocks */ diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index d2b2351e7d9c..0de1761928d3 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -181,7 +181,7 @@ bool need_SSR(struct f2fs_sb_info *sbi) return true; return free_sections(sbi) <= (node_secs + 2 * dent_secs + imeta_secs + - 2 * reserved_sections(sbi)); + SM_I(sbi)->min_ssr_sections + reserved_sections(sbi)); } void register_inmem_page(struct inode *inode, struct page *page) @@ -3671,6 +3671,7 @@ int build_segment_manager(struct f2fs_sb_info *sbi) sm_info->min_ipu_util = DEF_MIN_IPU_UTIL; sm_info->min_fsync_blocks = DEF_MIN_FSYNC_BLOCKS; sm_info->min_hot_blocks = DEF_MIN_HOT_BLOCKS; + sm_info->min_ssr_sections = reserved_sections(sbi); sm_info->trim_sections = DEF_BATCHED_TRIM_SECTIONS; diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 4166ac74e837..f0fdc89ce82f 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -285,6 +285,7 @@ F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy); F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util); F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks); F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_hot_blocks, min_hot_blocks); +F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ssr_sections, min_ssr_sections); F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh); F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages); F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio); @@ -330,6 +331,7 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(min_ipu_util), ATTR_LIST(min_fsync_blocks), ATTR_LIST(min_hot_blocks), + ATTR_LIST(min_ssr_sections), ATTR_LIST(max_victim_search), ATTR_LIST(dir_level), ATTR_LIST(ram_thresh), -- cgit v1.2.3 From 08810a4119aaebf6318f209ec5dd9828e969cba4 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 25 Oct 2017 14:12:29 +0200 Subject: PM / core: Add NEVER_SKIP and SMART_PREPARE driver flags The motivation for this change is to provide a way to work around a problem with the direct-complete mechanism used for avoiding system suspend/resume handling for devices in runtime suspend. The problem is that some middle layer code (the PCI bus type and the ACPI PM domain in particular) returns positive values from its system suspend ->prepare callbacks regardless of whether the driver's ->prepare returns a positive value or 0, which effectively prevents drivers from being able to control the direct-complete feature. Some drivers need that control, however, and the PCI bus type has grown its own flag to deal with this issue, but since it is not limited to PCI, it is better to address it by adding driver flags at the core level. To that end, add a driver_flags field to struct dev_pm_info for flags that can be set by device drivers at the probe time to inform the PM core and/or bus types, PM domains and so on on the capabilities and/or preferences of device drivers. Also add two static inline helpers for setting that field and testing it against a given set of flags and make the driver core clear it automatically on driver remove and probe failures. Define and document two PM driver flags related to the direct- complete feature: NEVER_SKIP and SMART_PREPARE that can be used, respectively, to indicate to the PM core that the direct-complete mechanism should never be used for the device and to inform the middle layer code (bus types, PM domains etc) that it can only request the PM core to use the direct-complete mechanism for the device (by returning a positive value from its ->prepare callback) if it also has been requested by the driver. While at it, make the core check pm_runtime_suspended() when setting power.direct_complete so that it doesn't need to be checked by ->prepare callbacks. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Acked-by: Bjorn Helgaas Reviewed-by: Ulf Hansson --- Documentation/driver-api/pm/devices.rst | 14 ++++++++++++++ Documentation/power/pci.txt | 19 +++++++++++++++++++ drivers/acpi/device_pm.c | 13 +++++++++---- drivers/base/dd.c | 2 ++ drivers/base/power/main.c | 4 +++- drivers/pci/pci-driver.c | 5 ++++- include/linux/device.h | 10 ++++++++++ include/linux/pm.h | 20 ++++++++++++++++++++ 8 files changed, 81 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst index 4a18ef9997c0..8add5b302a89 100644 --- a/Documentation/driver-api/pm/devices.rst +++ b/Documentation/driver-api/pm/devices.rst @@ -354,6 +354,20 @@ the phases are: ``prepare``, ``suspend``, ``suspend_late``, ``suspend_noirq``. is because all such devices are initially set to runtime-suspended with runtime PM disabled. + This feature also can be controlled by device drivers by using the + ``DPM_FLAG_NEVER_SKIP`` and ``DPM_FLAG_SMART_PREPARE`` driver power + management flags. [Typically, they are set at the time the driver is + probed against the device in question by passing them to the + :c:func:`dev_pm_set_driver_flags` helper function.] If the first of + these flags is set, the PM core will not apply the direct-complete + procedure described above to the given device and, consequenty, to any + of its ancestors. The second flag, when set, informs the middle layer + code (bus types, device types, PM domains, classes) that it should take + the return value of the ``->prepare`` callback provided by the driver + into account and it may only return a positive value from its own + ``->prepare`` callback if the driver's one also has returned a positive + value. + 2. The ``->suspend`` methods should quiesce the device to stop it from performing I/O. They also may save the device registers and put it into the appropriate low-power state, depending on the bus type the device is diff --git a/Documentation/power/pci.txt b/Documentation/power/pci.txt index a1b7f7158930..ab4e7d0540c1 100644 --- a/Documentation/power/pci.txt +++ b/Documentation/power/pci.txt @@ -961,6 +961,25 @@ dev_pm_ops to indicate that one suspend routine is to be pointed to by the .suspend(), .freeze(), and .poweroff() members and one resume routine is to be pointed to by the .resume(), .thaw(), and .restore() members. +3.1.19. Driver Flags for Power Management + +The PM core allows device drivers to set flags that influence the handling of +power management for the devices by the core itself and by middle layer code +including the PCI bus type. The flags should be set once at the driver probe +time with the help of the dev_pm_set_driver_flags() function and they should not +be updated directly afterwards. + +The DPM_FLAG_NEVER_SKIP flag prevents the PM core from using the direct-complete +mechanism allowing device suspend/resume callbacks to be skipped if the device +is in runtime suspend when the system suspend starts. That also affects all of +the ancestors of the device, so this flag should only be used if absolutely +necessary. + +The DPM_FLAG_SMART_PREPARE flag instructs the PCI bus type to only return a +positive value from pci_pm_prepare() if the ->prepare callback provided by the +driver of the device returns a positive value. That allows the driver to opt +out from using the direct-complete mechanism dynamically. + 3.2. Device Runtime Power Management ------------------------------------ In addition to providing device power management callbacks PCI device drivers diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 17e8eb93a76c..b4dcc6144e6b 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -959,11 +959,16 @@ static bool acpi_dev_needs_resume(struct device *dev, struct acpi_device *adev) int acpi_subsys_prepare(struct device *dev) { struct acpi_device *adev = ACPI_COMPANION(dev); - int ret; - ret = pm_generic_prepare(dev); - if (ret < 0) - return ret; + if (dev->driver && dev->driver->pm && dev->driver->pm->prepare) { + int ret = dev->driver->pm->prepare(dev); + + if (ret < 0) + return ret; + + if (!ret && dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_PREPARE)) + return 0; + } if (!adev || !pm_runtime_suspended(dev)) return 0; diff --git a/drivers/base/dd.c b/drivers/base/dd.c index ad44b40fe284..45575e134696 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -464,6 +464,7 @@ pinctrl_bind_failed: if (dev->pm_domain && dev->pm_domain->dismiss) dev->pm_domain->dismiss(dev); pm_runtime_reinit(dev); + dev_pm_set_driver_flags(dev, 0); switch (ret) { case -EPROBE_DEFER: @@ -869,6 +870,7 @@ static void __device_release_driver(struct device *dev, struct device *parent) if (dev->pm_domain && dev->pm_domain->dismiss) dev->pm_domain->dismiss(dev); pm_runtime_reinit(dev); + dev_pm_set_driver_flags(dev, 0); klist_remove(&dev->p->knode_driver); device_pm_check_callbacks(dev); diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 9bbbbb13a9db..c0135cd95ada 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -1700,7 +1700,9 @@ unlock: * applies to suspend transitions, however. */ spin_lock_irq(&dev->power.lock); - dev->power.direct_complete = ret > 0 && state.event == PM_EVENT_SUSPEND; + dev->power.direct_complete = state.event == PM_EVENT_SUSPEND && + pm_runtime_suspended(dev) && ret > 0 && + !dev_pm_test_driver_flags(dev, DPM_FLAG_NEVER_SKIP); spin_unlock_irq(&dev->power.lock); return 0; } diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 11bd267fc137..68a32703b30a 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -689,8 +689,11 @@ static int pci_pm_prepare(struct device *dev) if (drv && drv->pm && drv->pm->prepare) { int error = drv->pm->prepare(dev); - if (error) + if (error < 0) return error; + + if (!error && dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_PREPARE)) + return 0; } return pci_dev_keep_suspended(to_pci_dev(dev)); } diff --git a/include/linux/device.h b/include/linux/device.h index c32e6f974d4a..fb9451599aca 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -1070,6 +1070,16 @@ static inline void dev_pm_syscore_device(struct device *dev, bool val) #endif } +static inline void dev_pm_set_driver_flags(struct device *dev, u32 flags) +{ + dev->power.driver_flags = flags; +} + +static inline bool dev_pm_test_driver_flags(struct device *dev, u32 flags) +{ + return !!(dev->power.driver_flags & flags); +} + static inline void device_lock(struct device *dev) { mutex_lock(&dev->mutex); diff --git a/include/linux/pm.h b/include/linux/pm.h index a0ceeccf2846..f10bad831bfa 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -550,6 +550,25 @@ struct pm_subsys_data { #endif }; +/* + * Driver flags to control system suspend/resume behavior. + * + * These flags can be set by device drivers at the probe time. They need not be + * cleared by the drivers as the driver core will take care of that. + * + * NEVER_SKIP: Do not skip system suspend/resume callbacks for the device. + * SMART_PREPARE: Check the return value of the driver's ->prepare callback. + * + * Setting SMART_PREPARE instructs bus types and PM domains which may want + * system suspend/resume callbacks to be skipped for the device to return 0 from + * their ->prepare callbacks if the driver's ->prepare callback returns 0 (in + * other words, the system suspend/resume callbacks can only be skipped for the + * device if its driver doesn't object against that). This flag has no effect + * if NEVER_SKIP is set. + */ +#define DPM_FLAG_NEVER_SKIP BIT(0) +#define DPM_FLAG_SMART_PREPARE BIT(1) + struct dev_pm_info { pm_message_t power_state; unsigned int can_wakeup:1; @@ -561,6 +580,7 @@ struct dev_pm_info { bool is_late_suspended:1; bool early_init:1; /* Owned by the PM core */ bool direct_complete:1; /* Owned by the PM core */ + u32 driver_flags; spinlock_t lock; #ifdef CONFIG_PM_SLEEP struct list_head entry; -- cgit v1.2.3 From 0eab11c9ae3b3cc5dd76f20b81d0247647a6e96f Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 26 Oct 2017 12:12:08 +0200 Subject: PM / core: Add SMART_SUSPEND driver flag Define and document a SMART_SUSPEND flag to instruct bus types and PM domains that the system suspend callbacks provided by the driver can cope with runtime-suspended devices, so from the driver's perspective it should be safe to leave devices in runtime suspend during system suspend. Setting that flag may also cause middle-layer code (bus types, PM domains etc.) to skip invocations of the ->suspend_late and ->suspend_noirq callbacks provided by the driver if the device is in runtime suspend at the beginning of the "late" phase of the system-wide suspend transition, in which case the driver's system-wide resume callbacks may be invoked back-to-back with its ->runtime_suspend callback, so the driver has to be able to cope with that too. Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Reviewed-by: Ulf Hansson --- Documentation/driver-api/pm/devices.rst | 20 ++++++++++++++++++++ drivers/base/power/main.c | 3 +++ include/linux/pm.h | 8 ++++++++ 3 files changed, 31 insertions(+) (limited to 'Documentation') diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst index 8add5b302a89..574dadd06dec 100644 --- a/Documentation/driver-api/pm/devices.rst +++ b/Documentation/driver-api/pm/devices.rst @@ -766,6 +766,26 @@ the state of devices (possibly except for resuming them from runtime suspend) from their ``->prepare`` and ``->suspend`` callbacks (or equivalent) *before* invoking device drivers' ``->suspend`` callbacks (or equivalent). +Some bus types and PM domains have a policy to resume all devices from runtime +suspend upfront in their ``->suspend`` callbacks, but that may not be really +necessary if the driver of the device can cope with runtime-suspended devices. +The driver can indicate that by setting ``DPM_FLAG_SMART_SUSPEND`` in +:c:member:`power.driver_flags` at the probe time, by passing it to the +:c:func:`dev_pm_set_driver_flags` helper. That also may cause middle-layer code +(bus types, PM domains etc.) to skip the ``->suspend_late`` and +``->suspend_noirq`` callbacks provided by the driver if the device remains in +runtime suspend at the beginning of the ``suspend_late`` phase of system-wide +suspend (or in the ``poweroff_late`` phase of hibernation), when runtime PM +has been disabled for it, under the assumption that its state should not change +after that point until the system-wide transition is over. If that happens, the +driver's system-wide resume callbacks, if present, may still be invoked during +the subsequent system-wide resume transition and the device's runtime power +management status may be set to "active" before enabling runtime PM for it, +so the driver must be prepared to cope with the invocation of its system-wide +resume callbacks back-to-back with its ``->runtime_suspend`` one (without the +intervening ``->runtime_resume`` and so on) and the final state of the device +must reflect the "active" status for runtime PM in that case. + During system-wide resume from a sleep state it's easiest to put devices into the full-power state, as explained in :file:`Documentation/power/runtime_pm.txt`. Refer to that document for more information regarding this particular issue as diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index c0135cd95ada..8d9024017645 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -1652,6 +1652,9 @@ static int device_prepare(struct device *dev, pm_message_t state) if (dev->power.syscore) return 0; + WARN_ON(dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) && + !pm_runtime_enabled(dev)); + /* * If a device's parent goes into runtime suspend at the wrong time, * it won't be possible to resume the device. To prevent this we diff --git a/include/linux/pm.h b/include/linux/pm.h index f10bad831bfa..43b5418e05bb 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -558,6 +558,7 @@ struct pm_subsys_data { * * NEVER_SKIP: Do not skip system suspend/resume callbacks for the device. * SMART_PREPARE: Check the return value of the driver's ->prepare callback. + * SMART_SUSPEND: No need to resume the device from runtime suspend. * * Setting SMART_PREPARE instructs bus types and PM domains which may want * system suspend/resume callbacks to be skipped for the device to return 0 from @@ -565,9 +566,16 @@ struct pm_subsys_data { * other words, the system suspend/resume callbacks can only be skipped for the * device if its driver doesn't object against that). This flag has no effect * if NEVER_SKIP is set. + * + * Setting SMART_SUSPEND instructs bus types and PM domains which may want to + * runtime resume the device upfront during system suspend that doing so is not + * necessary from the driver's perspective. It also may cause them to skip + * invocations of the ->suspend_late and ->suspend_noirq callbacks provided by + * the driver if they decide to leave the device in runtime suspend. */ #define DPM_FLAG_NEVER_SKIP BIT(0) #define DPM_FLAG_SMART_PREPARE BIT(1) +#define DPM_FLAG_SMART_SUSPEND BIT(2) struct dev_pm_info { pm_message_t power_state; -- cgit v1.2.3 From c4b65157aeefad29b2351a00a010e8c40ce7fd0e Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 26 Oct 2017 12:12:22 +0200 Subject: PCI / PM: Take SMART_SUSPEND driver flag into account Make the PCI bus type take DPM_FLAG_SMART_SUSPEND into account in its system-wide PM callbacks and make sure that all code that should not run in parallel with pci_pm_runtime_resume() is executed in the "late" phases of system suspend, freeze and poweroff transitions. [Note that the pm_runtime_suspended() check in pci_dev_keep_suspended() is an optimization, because if is not passed, all of the subsequent checks may be skipped and some of them are much more overhead in general.] Also use the observation that if the device is in runtime suspend at the beginning of the "late" phase of a system-wide suspend-like transition, its state cannot change going forward (runtime PM is disabled for it at that time) until the transition is over and the subsequent system-wide PM callbacks should be skipped for it (as they generally assume the device to not be suspended), so add checks for that in pci_pm_suspend_late/noirq(), pci_pm_freeze_late/noirq() and pci_pm_poweroff_late/noirq(). Moreover, if pci_pm_resume_noirq() or pci_pm_restore_noirq() is called during the subsequent system-wide resume transition and if the device was left in runtime suspend previously, its runtime PM status needs to be changed to "active" as it is going to be put into the full-power state, so add checks for that too to these functions. In turn, if pci_pm_thaw_noirq() runs after the device has been left in runtime suspend, the subsequent "thaw" callbacks need to be skipped for it (as they may not work correctly with a suspended device), so set the power.direct_complete flag for the device then to make the PM core skip those callbacks. In addition to the above add a core helper for checking if DPM_FLAG_SMART_SUSPEND is set and the device runtime PM status is "suspended" at the same time, which is done quite often in the new code (and will be done elsewhere going forward too). Signed-off-by: Rafael J. Wysocki Acked-by: Greg Kroah-Hartman Acked-by: Bjorn Helgaas --- Documentation/power/pci.txt | 14 ++++++ drivers/base/power/main.c | 6 +++ drivers/pci/pci-driver.c | 103 ++++++++++++++++++++++++++++++++++++-------- include/linux/pm.h | 2 + 4 files changed, 108 insertions(+), 17 deletions(-) (limited to 'Documentation') diff --git a/Documentation/power/pci.txt b/Documentation/power/pci.txt index ab4e7d0540c1..304162ea377e 100644 --- a/Documentation/power/pci.txt +++ b/Documentation/power/pci.txt @@ -980,6 +980,20 @@ positive value from pci_pm_prepare() if the ->prepare callback provided by the driver of the device returns a positive value. That allows the driver to opt out from using the direct-complete mechanism dynamically. +The DPM_FLAG_SMART_SUSPEND flag tells the PCI bus type that from the driver's +perspective the device can be safely left in runtime suspend during system +suspend. That causes pci_pm_suspend(), pci_pm_freeze() and pci_pm_poweroff() +to skip resuming the device from runtime suspend unless there are PCI-specific +reasons for doing that. Also, it causes pci_pm_suspend_late/noirq(), +pci_pm_freeze_late/noirq() and pci_pm_poweroff_late/noirq() to return early +if the device remains in runtime suspend in the beginning of the "late" phase +of the system-wide transition under way. Moreover, if the device is in +runtime suspend in pci_pm_resume_noirq() or pci_pm_restore_noirq(), its runtime +power management status will be changed to "active" (as it is going to be put +into D0 going forward), but if it is in runtime suspend in pci_pm_thaw_noirq(), +the function will set the power.direct_complete flag for it (to make the PM core +skip the subsequent "thaw" callbacks for it) and return. + 3.2. Device Runtime Power Management ------------------------------------ In addition to providing device power management callbacks PCI device drivers diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 8d9024017645..6c6f1c74c24c 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -1861,3 +1861,9 @@ void device_pm_check_callbacks(struct device *dev) !dev->driver->suspend && !dev->driver->resume)); spin_unlock_irq(&dev->power.lock); } + +bool dev_pm_smart_suspend_and_suspended(struct device *dev) +{ + return dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) && + pm_runtime_status_suspended(dev); +} diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index c1aeeb10539e..d19bd54d337e 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -734,18 +734,25 @@ static int pci_pm_suspend(struct device *dev) if (!pm) { pci_pm_default_suspend(pci_dev); - goto Fixup; + return 0; } /* - * PCI devices suspended at run time need to be resumed at this point, - * because in general it is necessary to reconfigure them for system - * suspend. Namely, if the device is supposed to wake up the system - * from the sleep state, we may need to reconfigure it for this purpose. - * In turn, if the device is not supposed to wake up the system from the - * sleep state, we'll have to prevent it from signaling wake-up. + * PCI devices suspended at run time may need to be resumed at this + * point, because in general it may be necessary to reconfigure them for + * system suspend. Namely, if the device is expected to wake up the + * system from the sleep state, it may have to be reconfigured for this + * purpose, or if the device is not expected to wake up the system from + * the sleep state, it should be prevented from signaling wakeup events + * going forward. + * + * Also if the driver of the device does not indicate that its system + * suspend callbacks can cope with runtime-suspended devices, it is + * better to resume the device from runtime suspend here. */ - pm_runtime_resume(dev); + if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) || + !pci_dev_keep_suspended(pci_dev)) + pm_runtime_resume(dev); pci_dev->state_saved = false; if (pm->suspend) { @@ -765,17 +772,27 @@ static int pci_pm_suspend(struct device *dev) } } - Fixup: - pci_fixup_device(pci_fixup_suspend, pci_dev); - return 0; } +static int pci_pm_suspend_late(struct device *dev) +{ + if (dev_pm_smart_suspend_and_suspended(dev)) + return 0; + + pci_fixup_device(pci_fixup_suspend, to_pci_dev(dev)); + + return pm_generic_suspend_late(dev); +} + static int pci_pm_suspend_noirq(struct device *dev) { struct pci_dev *pci_dev = to_pci_dev(dev); const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; + if (dev_pm_smart_suspend_and_suspended(dev)) + return 0; + if (pci_has_legacy_pm_support(pci_dev)) return pci_legacy_suspend_late(dev, PMSG_SUSPEND); @@ -834,6 +851,14 @@ static int pci_pm_resume_noirq(struct device *dev) struct device_driver *drv = dev->driver; int error = 0; + /* + * Devices with DPM_FLAG_SMART_SUSPEND may be left in runtime suspend + * during system suspend, so update their runtime PM status to "active" + * as they are going to be put into D0 shortly. + */ + if (dev_pm_smart_suspend_and_suspended(dev)) + pm_runtime_set_active(dev); + pci_pm_default_resume_early(pci_dev); if (pci_has_legacy_pm_support(pci_dev)) @@ -876,6 +901,7 @@ static int pci_pm_resume(struct device *dev) #else /* !CONFIG_SUSPEND */ #define pci_pm_suspend NULL +#define pci_pm_suspend_late NULL #define pci_pm_suspend_noirq NULL #define pci_pm_resume NULL #define pci_pm_resume_noirq NULL @@ -910,7 +936,8 @@ static int pci_pm_freeze(struct device *dev) * devices should not be touched during freeze/thaw transitions, * however. */ - pm_runtime_resume(dev); + if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND)) + pm_runtime_resume(dev); pci_dev->state_saved = false; if (pm->freeze) { @@ -925,11 +952,22 @@ static int pci_pm_freeze(struct device *dev) return 0; } +static int pci_pm_freeze_late(struct device *dev) +{ + if (dev_pm_smart_suspend_and_suspended(dev)) + return 0; + + return pm_generic_freeze_late(dev);; +} + static int pci_pm_freeze_noirq(struct device *dev) { struct pci_dev *pci_dev = to_pci_dev(dev); struct device_driver *drv = dev->driver; + if (dev_pm_smart_suspend_and_suspended(dev)) + return 0; + if (pci_has_legacy_pm_support(pci_dev)) return pci_legacy_suspend_late(dev, PMSG_FREEZE); @@ -959,6 +997,16 @@ static int pci_pm_thaw_noirq(struct device *dev) struct device_driver *drv = dev->driver; int error = 0; + /* + * If the device is in runtime suspend, the code below may not work + * correctly with it, so skip that code and make the PM core skip all of + * the subsequent "thaw" callbacks for the device. + */ + if (dev_pm_smart_suspend_and_suspended(dev)) { + dev->power.direct_complete = true; + return 0; + } + if (pcibios_pm_ops.thaw_noirq) { error = pcibios_pm_ops.thaw_noirq(dev); if (error) @@ -1008,11 +1056,13 @@ static int pci_pm_poweroff(struct device *dev) if (!pm) { pci_pm_default_suspend(pci_dev); - goto Fixup; + return 0; } /* The reason to do that is the same as in pci_pm_suspend(). */ - pm_runtime_resume(dev); + if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) || + !pci_dev_keep_suspended(pci_dev)) + pm_runtime_resume(dev); pci_dev->state_saved = false; if (pm->poweroff) { @@ -1024,17 +1074,27 @@ static int pci_pm_poweroff(struct device *dev) return error; } - Fixup: - pci_fixup_device(pci_fixup_suspend, pci_dev); - return 0; } +static int pci_pm_poweroff_late(struct device *dev) +{ + if (dev_pm_smart_suspend_and_suspended(dev)) + return 0; + + pci_fixup_device(pci_fixup_suspend, to_pci_dev(dev)); + + return pm_generic_poweroff_late(dev); +} + static int pci_pm_poweroff_noirq(struct device *dev) { struct pci_dev *pci_dev = to_pci_dev(dev); struct device_driver *drv = dev->driver; + if (dev_pm_smart_suspend_and_suspended(dev)) + return 0; + if (pci_has_legacy_pm_support(to_pci_dev(dev))) return pci_legacy_suspend_late(dev, PMSG_HIBERNATE); @@ -1076,6 +1136,10 @@ static int pci_pm_restore_noirq(struct device *dev) struct device_driver *drv = dev->driver; int error = 0; + /* This is analogous to the pci_pm_resume_noirq() case. */ + if (dev_pm_smart_suspend_and_suspended(dev)) + pm_runtime_set_active(dev); + if (pcibios_pm_ops.restore_noirq) { error = pcibios_pm_ops.restore_noirq(dev); if (error) @@ -1124,10 +1188,12 @@ static int pci_pm_restore(struct device *dev) #else /* !CONFIG_HIBERNATE_CALLBACKS */ #define pci_pm_freeze NULL +#define pci_pm_freeze_late NULL #define pci_pm_freeze_noirq NULL #define pci_pm_thaw NULL #define pci_pm_thaw_noirq NULL #define pci_pm_poweroff NULL +#define pci_pm_poweroff_late NULL #define pci_pm_poweroff_noirq NULL #define pci_pm_restore NULL #define pci_pm_restore_noirq NULL @@ -1243,10 +1309,13 @@ static const struct dev_pm_ops pci_dev_pm_ops = { .prepare = pci_pm_prepare, .complete = pci_pm_complete, .suspend = pci_pm_suspend, + .suspend_late = pci_pm_suspend_late, .resume = pci_pm_resume, .freeze = pci_pm_freeze, + .freeze_late = pci_pm_freeze_late, .thaw = pci_pm_thaw, .poweroff = pci_pm_poweroff, + .poweroff_late = pci_pm_poweroff_late, .restore = pci_pm_restore, .suspend_noirq = pci_pm_suspend_noirq, .resume_noirq = pci_pm_resume_noirq, diff --git a/include/linux/pm.h b/include/linux/pm.h index 43b5418e05bb..65d39115f06d 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -765,6 +765,8 @@ extern int pm_generic_poweroff_late(struct device *dev); extern int pm_generic_poweroff(struct device *dev); extern void pm_generic_complete(struct device *dev); +extern bool dev_pm_smart_suspend_and_suspended(struct device *dev); + #else /* !CONFIG_PM_SLEEP */ #define device_pm_lock() do {} while (0) -- cgit v1.2.3 From ae204f80ca4074b6db07bd28c75faf02718735a0 Mon Sep 17 00:00:00 2001 From: Eric Auger Date: Thu, 26 Oct 2017 17:23:10 +0200 Subject: KVM: arm/arm64: Document KVM_DEV_ARM_ITS_CTRL_RESET At the moment, the in-kernel emulated ITS is not properly reset. On guest restart/reset some registers keep their old values and internal structures like device, ITE, and collection lists are not freed. This may lead to various bugs. Among them, we can have incorrect state backup or failure when saving the ITS state at early guest boot stage. This patch documents a new attribute, KVM_DEV_ARM_ITS_CTRL_RESET in the KVM_DEV_ARM_VGIC_GRP_CTRL group. Upon this action, we can reset registers and especially those pointing to tables previously allocated by the guest and free the internal data structures storing the list of devices, collections and lpis. The usual approach for device reset of having userspace write the reset values of the registers to the kernel via the register read/write APIs doesn't work for the ITS because it has some internal state (caches) which is not exposed as registers, and there is no register interface for "drop cached data without writing it back to RAM". So we need a KVM API which mimics the hardware's reset line, to provide the equivalent behaviour to a "pull the power cord out of the back of the machine" reset. Reviewed-by: Christoffer Dall Reviewed-by: Marc Zyngier Signed-off-by: Eric Auger Reported-by: wanghaibin Signed-off-by: Christoffer Dall --- Documentation/virtual/kvm/devices/arm-vgic-its.txt | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'Documentation') diff --git a/Documentation/virtual/kvm/devices/arm-vgic-its.txt b/Documentation/virtual/kvm/devices/arm-vgic-its.txt index eb06beb75960..8d5830eab26a 100644 --- a/Documentation/virtual/kvm/devices/arm-vgic-its.txt +++ b/Documentation/virtual/kvm/devices/arm-vgic-its.txt @@ -33,6 +33,10 @@ Groups: request the initialization of the ITS, no additional parameter in kvm_device_attr.addr. + KVM_DEV_ARM_ITS_CTRL_RESET + reset the ITS, no additional parameter in kvm_device_attr.addr. + See "ITS Reset State" section. + KVM_DEV_ARM_ITS_SAVE_TABLES save the ITS table data into guest RAM, at the location provisioned by the guest in corresponding registers/table entries. @@ -157,3 +161,19 @@ Then vcpus can be started. - pINTID is the physical LPI ID; if zero, it means the entry is not valid and other fields are not meaningful. - ICID is the collection ID + + ITS Reset State: + ---------------- + +RESET returns the ITS to the same state that it was when first created and +initialized. When the RESET command returns, the following things are +guaranteed: + +- The ITS is not enabled and quiescent + GITS_CTLR.Enabled = 0 .Quiescent=1 +- There is no internally cached state +- No collection or device table are used + GITS_BASER.Valid = 0 +- GITS_CBASER = 0, GITS_CREADR = 0, GITS_CWRITER = 0 +- The ABI version is unchanged and remains the one set when the ITS + device was first created. -- cgit v1.2.3 From edd20e95bca4a5434f264d8ab40d729761479825 Mon Sep 17 00:00:00 2001 From: Joel Stanley Date: Wed, 1 Nov 2017 10:53:30 +1030 Subject: i2c: aspeed: Deassert reset in probe In order to use i2c from a cold boot, the i2c peripheral must be taken out of reset. We request a shared reset controller each time a bus driver is loaded, as the reset is shared between the 14 i2c buses. On remove the reset is asserted, which only touches the hardware once the last i2c bus is removed. The reset is required as the I2C buses will not work without releasing the reset. Previously the driver only worked with out of tree hacks that released this reset before the driver was loaded. Update the device tree bindings to reflect this. Signed-off-by: Joel Stanley Acked-by: Rob Herring Signed-off-by: Wolfram Sang --- Documentation/devicetree/bindings/i2c/i2c-aspeed.txt | 7 +++++-- drivers/i2c/busses/i2c-aspeed.c | 12 ++++++++++++ 2 files changed, 17 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt b/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt index bd6480b19535..e7106bfc1f13 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-aspeed.txt @@ -7,7 +7,9 @@ Required Properties: - compatible : should be "aspeed,ast2400-i2c-bus" or "aspeed,ast2500-i2c-bus" - clocks : root clock of bus, should reference the APB - clock + clock in the second cell +- resets : phandle to reset controller with the reset number in + the second cell - interrupts : interrupt number - interrupt-parent : interrupt controller for bus, should reference a aspeed,ast2400-i2c-ic or aspeed,ast2500-i2c-ic @@ -40,7 +42,8 @@ i2c { #interrupt-cells = <1>; reg = <0x40 0x40>; compatible = "aspeed,ast2400-i2c-bus"; - clocks = <&clk_apb>; + clocks = <&syscon ASPEED_CLK_APB>; + resets = <&syscon ASPEED_RESET_I2C>; bus-frequency = <100000>; interrupts = <0>; interrupt-parent = <&i2c_ic>; diff --git a/drivers/i2c/busses/i2c-aspeed.c b/drivers/i2c/busses/i2c-aspeed.c index 284f8670dbeb..7d4aeb4465b3 100644 --- a/drivers/i2c/busses/i2c-aspeed.c +++ b/drivers/i2c/busses/i2c-aspeed.c @@ -27,6 +27,7 @@ #include #include #include +#include #include /* I2C Register */ @@ -132,6 +133,7 @@ struct aspeed_i2c_bus { struct i2c_adapter adap; struct device *dev; void __iomem *base; + struct reset_control *rst; /* Synchronizes I/O mem access to base. */ spinlock_t lock; struct completion cmd_complete; @@ -847,6 +849,14 @@ static int aspeed_i2c_probe_bus(struct platform_device *pdev) /* We just need the clock rate, we don't actually use the clk object. */ devm_clk_put(&pdev->dev, parent_clk); + bus->rst = devm_reset_control_get_shared(&pdev->dev, NULL); + if (IS_ERR(bus->rst)) { + dev_err(&pdev->dev, + "missing or invalid reset controller device tree entry"); + return PTR_ERR(bus->rst); + } + reset_control_deassert(bus->rst); + ret = of_property_read_u32(pdev->dev.of_node, "bus-frequency", &bus->bus_frequency); if (ret < 0) { @@ -917,6 +927,8 @@ static int aspeed_i2c_remove_bus(struct platform_device *pdev) spin_unlock_irqrestore(&bus->lock, flags); + reset_control_assert(bus->rst); + i2c_del_adapter(&bus->adap); return 0; -- cgit v1.2.3 From ded0eb83449e8fcba22fd2736826336e101ffbcb Mon Sep 17 00:00:00 2001 From: Andrew Jeffery Date: Fri, 3 Nov 2017 15:53:01 +1100 Subject: dt-bindings: pmbus: Add Maxim MAX31785 documentation Signed-off-by: Andrew Jeffery Acked-by: Rob Herring Signed-off-by: Guenter Roeck --- .../devicetree/bindings/hwmon/max31785.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/max31785.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/hwmon/max31785.txt b/Documentation/devicetree/bindings/hwmon/max31785.txt new file mode 100644 index 000000000000..106e08c56aaa --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/max31785.txt @@ -0,0 +1,22 @@ +Bindings for the Maxim MAX31785 Intelligent Fan Controller +========================================================== + +Reference: + +https://datasheets.maximintegrated.com/en/ds/MAX31785.pdf + +The Maxim MAX31785 is a PMBus device providing closed-loop, multi-channel fan +management with temperature and remote voltage sensing. Various fan control +features are provided, including PWM frequency control, temperature hysteresis, +dual tachometer measurements, and fan health monitoring. + +Required properties: +- compatible : One of "maxim,max31785" or "maxim,max31785a" +- reg : I2C address, one of 0x52, 0x53, 0x54, 0x55. + +Example: + + fans@52 { + compatible = "maxim,max31785"; + reg = <0x52>; + }; -- cgit v1.2.3 From 0ea04c7322b0dbbc4e7a862451855b10ef9922d3 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Mon, 6 Nov 2017 18:34:36 +0000 Subject: dt-bindings: Add description of Socionext EXIU interrupt controller Add a description of the External Interrupt Unit (EXIU) interrupt controller as found on the Socionext SynQuacer SoC. Acked-by: Rob Herring Signed-off-by: Ard Biesheuvel Signed-off-by: Marc Zyngier --- .../socionext,synquacer-exiu.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/socionext,synquacer-exiu.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/interrupt-controller/socionext,synquacer-exiu.txt b/Documentation/devicetree/bindings/interrupt-controller/socionext,synquacer-exiu.txt new file mode 100644 index 000000000000..8b2faefe29ca --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/socionext,synquacer-exiu.txt @@ -0,0 +1,32 @@ +Socionext SynQuacer External Interrupt Unit (EXIU) + +The Socionext Synquacer SoC has an external interrupt unit (EXIU) +that forwards a block of 32 configurable input lines to 32 adjacent +level-high type GICv3 SPIs. + +Required properties: + +- compatible : Should be "socionext,synquacer-exiu". +- reg : Specifies base physical address and size of the + control registers. +- interrupt-controller : Identifies the node as an interrupt controller. +- #interrupt-cells : Specifies the number of cells needed to encode an + interrupt source. The value must be 3. +- interrupt-parent : phandle of the GIC these interrupts are routed to. +- socionext,spi-base : The SPI number of the first SPI of the 32 adjacent + ones the EXIU forwards its interrups to. + +Notes: + +- Only SPIs can use the EXIU as an interrupt parent. + +Example: + + exiu: interrupt-controller@510c0000 { + compatible = "socionext,synquacer-exiu"; + reg = <0x0 0x510c0000 0x0 0x20>; + interrupt-controller; + interrupt-parent = <&gic>; + #interrupt-cells = <3>; + socionext,spi-base = <112>; + }; -- cgit v1.2.3 From ce0b7e39c5a0c65bdce6fc36bba2991ea8f915b7 Mon Sep 17 00:00:00 2001 From: Ludovic Barre Date: Mon, 6 Nov 2017 18:03:33 +0100 Subject: dt-bindings/interrupt-controllers: Add compatible string for stm32h7 This patch updates stm32-exti documentation with stm32h7-exti compatible string. Acked-by: Rob Herring Signed-off-by: Ludovic Barre Signed-off-by: Marc Zyngier --- .../devicetree/bindings/interrupt-controller/st,stm32-exti.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt index 6e7703d4ff5b..edf03f09244b 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt @@ -2,7 +2,9 @@ STM32 External Interrupt Controller Required properties: -- compatible: Should be "st,stm32-exti" +- compatible: Should be: + "st,stm32-exti" + "st,stm32h7-exti" - reg: Specifies base physical address and size of the registers - interrupt-controller: Indentifies the node as an interrupt controller - #interrupt-cells: Specifies the number of cells to encode an interrupt -- cgit v1.2.3 From 167e5b6f98d27901c7a00b566938ce1973af4395 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Mon, 6 Nov 2017 15:29:22 +0000 Subject: dt-bindings: sdhci-fujitsu: document cmd-dat-delay property Document a new boolean property of the sdhci-fujitsu binding that indicates whether the CMD_DAT_DELAY bit needs to be set in the F_SDH30_ESD_CONTROL register. Acked-by: Rob Herring Signed-off-by: Ard Biesheuvel Signed-off-by: Ulf Hansson --- Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt b/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt index de2c53cff4f1..3ee9263adf73 100644 --- a/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt +++ b/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt @@ -15,6 +15,8 @@ Required properties: Optional properties: - vqmmc-supply: phandle to the regulator device tree node, mentioned as the VCCQ/VDD_IO supply in the eMMC/SD specs. +- fujitsu,cmd-dat-delay-select: boolean property indicating that this host + requires the CMD_DAT_DELAY control to be enabled. Example: -- cgit v1.2.3 From 33e63acc119d15c2fac3e3775f32d1ce7a01021b Mon Sep 17 00:00:00 2001 From: Brijesh Singh Date: Fri, 20 Oct 2017 09:30:43 -0500 Subject: Documentation/x86: Add AMD Secure Encrypted Virtualization (SEV) description Update the AMD memory encryption document describing the Secure Encrypted Virtualization (SEV) feature. Signed-off-by: Brijesh Singh Signed-off-by: Thomas Gleixner Reviewed-by: Borislav Petkov Cc: Tom Lendacky Cc: kvm@vger.kernel.org Cc: Jonathan Corbet Cc: Borislav Petkov Link: https://lkml.kernel.org/r/20171020143059.3291-2-brijesh.singh@amd.com --- Documentation/x86/amd-memory-encryption.txt | 30 +++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/x86/amd-memory-encryption.txt b/Documentation/x86/amd-memory-encryption.txt index f512ab718541..afc41f544dab 100644 --- a/Documentation/x86/amd-memory-encryption.txt +++ b/Documentation/x86/amd-memory-encryption.txt @@ -1,4 +1,5 @@ -Secure Memory Encryption (SME) is a feature found on AMD processors. +Secure Memory Encryption (SME) and Secure Encrypted Virtualization (SEV) are +features found on AMD processors. SME provides the ability to mark individual pages of memory as encrypted using the standard x86 page tables. A page that is marked encrypted will be @@ -6,24 +7,38 @@ automatically decrypted when read from DRAM and encrypted when written to DRAM. SME can therefore be used to protect the contents of DRAM from physical attacks on the system. +SEV enables running encrypted virtual machines (VMs) in which the code and data +of the guest VM are secured so that a decrypted version is available only +within the VM itself. SEV guest VMs have the concept of private and shared +memory. Private memory is encrypted with the guest-specific key, while shared +memory may be encrypted with hypervisor key. When SME is enabled, the hypervisor +key is the same key which is used in SME. + A page is encrypted when a page table entry has the encryption bit set (see below on how to determine its position). The encryption bit can also be specified in the cr3 register, allowing the PGD table to be encrypted. Each successive level of page tables can also be encrypted by setting the encryption bit in the page table entry that points to the next table. This allows the full page table hierarchy to be encrypted. Note, this means that just because the -encryption bit is set in cr3, doesn't imply the full hierarchy is encyrpted. +encryption bit is set in cr3, doesn't imply the full hierarchy is encrypted. Each page table entry in the hierarchy needs to have the encryption bit set to achieve that. So, theoretically, you could have the encryption bit set in cr3 so that the PGD is encrypted, but not set the encryption bit in the PGD entry for a PUD which results in the PUD pointed to by that entry to not be encrypted. -Support for SME can be determined through the CPUID instruction. The CPUID -function 0x8000001f reports information related to SME: +When SEV is enabled, instruction pages and guest page tables are always treated +as private. All the DMA operations inside the guest must be performed on shared +memory. Since the memory encryption bit is controlled by the guest OS when it +is operating in 64-bit or 32-bit PAE mode, in all other modes the SEV hardware +forces the memory encryption bit to 1. + +Support for SME and SEV can be determined through the CPUID instruction. The +CPUID function 0x8000001f reports information related to SME: 0x8000001f[eax]: Bit[0] indicates support for SME + Bit[1] indicates support for SEV 0x8000001f[ebx]: Bits[5:0] pagetable bit number used to activate memory encryption @@ -39,6 +54,13 @@ determine if SME is enabled and/or to enable memory encryption: Bit[23] 0 = memory encryption features are disabled 1 = memory encryption features are enabled +If SEV is supported, MSR 0xc0010131 (MSR_AMD64_SEV) can be used to determine if +SEV is active: + + 0xc0010131: + Bit[0] 0 = memory encryption is not active + 1 = memory encryption is active + Linux relies on BIOS to set this bit if BIOS has determined that the reduction in the physical address space as a result of enabling memory encryption (see CPUID information above) will not conflict with the address space resource -- cgit v1.2.3 From ec473a9c40416ef1802088e9f9d44d40c16aac6a Mon Sep 17 00:00:00 2001 From: Sebastien Bourdelin Date: Thu, 2 Nov 2017 14:17:12 -0400 Subject: dt-bindings: bus: Add documentation for the Technologic Systems NBUS Add binding documentation for the Technologic Systems NBUS that is used to interface with peripherals in the FPGA of the TS-4600 SoM. Signed-off-by: Sebastien Bourdelin Acked-by: Linus Walleij Acked-by: Rob Herring Signed-off-by: Arnd Bergmann --- Documentation/devicetree/bindings/bus/ts-nbus.txt | 50 +++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/bus/ts-nbus.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/bus/ts-nbus.txt b/Documentation/devicetree/bindings/bus/ts-nbus.txt new file mode 100644 index 000000000000..2a10d065b9fa --- /dev/null +++ b/Documentation/devicetree/bindings/bus/ts-nbus.txt @@ -0,0 +1,50 @@ +Technologic Systems NBUS + +The NBUS is a bus used to interface with peripherals in the Technologic +Systems FPGA on the TS-4600 SoM. + +Required properties : + - compatible : "technologic,ts-nbus" + - #address-cells : must be 1 + - #size-cells : must be 0 + - pwms : The PWM bound to the FPGA + - ts,data-gpios : The 8 GPIO pins connected to the data lines on the FPGA + - ts,csn-gpios : The GPIO pin connected to the csn line on the FPGA + - ts,txrx-gpios : The GPIO pin connected to the txrx line on the FPGA + - ts,strobe-gpios : The GPIO pin connected to the stobe line on the FPGA + - ts,ale-gpios : The GPIO pin connected to the ale line on the FPGA + - ts,rdy-gpios : The GPIO pin connected to the rdy line on the FPGA + +Child nodes: + +The NBUS node can contain zero or more child nodes representing peripherals +on the bus. + +Example: + + nbus { + compatible = "technologic,ts-nbus"; + pinctrl-0 = <&nbus_pins>; + #address-cells = <1>; + #size-cells = <0>; + pwms = <&pwm 2 83>; + ts,data-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH + &gpio0 1 GPIO_ACTIVE_HIGH + &gpio0 2 GPIO_ACTIVE_HIGH + &gpio0 3 GPIO_ACTIVE_HIGH + &gpio0 4 GPIO_ACTIVE_HIGH + &gpio0 5 GPIO_ACTIVE_HIGH + &gpio0 6 GPIO_ACTIVE_HIGH + &gpio0 7 GPIO_ACTIVE_HIGH>; + ts,csn-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>; + ts,txrx-gpios = <&gpio0 24 GPIO_ACTIVE_HIGH>; + ts,strobe-gpios = <&gpio0 25 GPIO_ACTIVE_HIGH>; + ts,ale-gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>; + ts,rdy-gpios = <&gpio0 21 GPIO_ACTIVE_HIGH>; + + watchdog@2a { + compatible = "..."; + + /* ... */ + }; + }; -- cgit v1.2.3 From e8815241173ebba4ccad490d4907b354b795fa5c Mon Sep 17 00:00:00 2001 From: Minwoo Im Date: Tue, 7 Nov 2017 22:23:01 +0900 Subject: null_blk: fix default values in documentation null_blk.c has initial value of (1) nr_devices as 1. (2) completion_nsec as 10,000ns, not 10.000ns. documentation should be updated for fixes above. Signed-off-by: Minwoo Im Signed-off-by: Jens Axboe --- Documentation/block/null_blk.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/block/null_blk.txt b/Documentation/block/null_blk.txt index b7161c8e70f2..fcf7f8487d8e 100644 --- a/Documentation/block/null_blk.txt +++ b/Documentation/block/null_blk.txt @@ -38,7 +38,7 @@ gb=[Size in GB]: Default: 250GB bs=[Block size (in bytes)]: Default: 512 bytes The block size reported to the system. -nr_devices=[Number of devices]: Default: 2 +nr_devices=[Number of devices]: Default: 1 Number of block devices instantiated. They are instantiated as /dev/nullb0, etc. @@ -52,7 +52,7 @@ irqmode=[0-2]: Default: 1-Soft-irq 2: Timer: Waits a specific period (completion_nsec) for each IO before completion. -completion_nsec=[ns]: Default: 10.000ns +completion_nsec=[ns]: Default: 10,000ns Combined with irqmode=2 (timer). The time each completion event must wait. submit_queues=[1..nr_cpus]: -- cgit v1.2.3 From bf9fc98b736b8a3837040d5ce3a7caf04fa0859c Mon Sep 17 00:00:00 2001 From: Minwoo Im Date: Tue, 7 Nov 2017 09:25:37 -0700 Subject: null_blk: add an usage for shared tags in documentation Add usage explanation for a shared_tags, introduced by commit: 82f402fefa50 ("null_blk: add support for shared tags") Signed-off-by: Minwoo Im Reworded slightly. Signed-off-by: Jens Axboe --- Documentation/block/null_blk.txt | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'Documentation') diff --git a/Documentation/block/null_blk.txt b/Documentation/block/null_blk.txt index fcf7f8487d8e..733927a7b501 100644 --- a/Documentation/block/null_blk.txt +++ b/Documentation/block/null_blk.txt @@ -77,3 +77,8 @@ use_lightnvm=[0/1]: Default: 0 no_sched=[0/1]: Default: 0 0: nullb* use default blk-mq io scheduler. 1: nullb* doesn't use io scheduler. + +shared_tags=[0/1]: Default: 0 + 0: Tag set is not shared. + 1: Tag set shared between devices for blk-mq. Only makes sense with + nr_devices > 1, otherwise there's no tag set to share. -- cgit v1.2.3 From fa1e6a8aec47d5623f8361907f57e44f112a8f4f Mon Sep 17 00:00:00 2001 From: Jonas Gorski Date: Wed, 20 Sep 2017 13:14:04 +0200 Subject: tty/bcm63xx_uart: allow naming clock in device tree Codify using a named clock for the refclk of the uart. This makes it easier if we might need to add a gating clock (like present on the BCM6345). Signed-off-by: Jonas Gorski Acked-by: Rob Herring Acked-by: Greg Kroah-Hartman Reviewed-by: Florian Fainelli Cc: Mark Rutland Cc: Kevin Cernekee Cc: Russell King Cc: linux-mips@linux-mips.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-serial@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: bcm-kernel-feedback-list@broadcom.com Patchwork: https://patchwork.linux-mips.org/patch/17328/ Signed-off-by: Ralf Baechle Signed-off-by: James Hogan --- Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.txt | 6 ++++++ drivers/tty/serial/bcm63xx_uart.c | 6 ++++-- 2 files changed, 10 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.txt b/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.txt index 5c52e5eef16d..8b2b0460259a 100644 --- a/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.txt +++ b/Documentation/devicetree/bindings/serial/brcm,bcm6345-uart.txt @@ -11,6 +11,11 @@ Required properties: - clocks: Clock driving the hardware; used to figure out the baud rate divisor. + +Optional properties: + +- clock-names: Should be "refclk". + Example: uart0: serial@14e00520 { @@ -19,6 +24,7 @@ Example: interrupt-parent = <&periph_intc>; interrupts = <2>; clocks = <&periph_clk>; + clock-names = "refclk"; }; clocks { diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c index afcc0418831b..0385bd361f4f 100644 --- a/drivers/tty/serial/bcm63xx_uart.c +++ b/drivers/tty/serial/bcm63xx_uart.c @@ -846,8 +846,10 @@ static int bcm_uart_probe(struct platform_device *pdev) if (!res_irq) return -ENODEV; - clk = pdev->dev.of_node ? of_clk_get(pdev->dev.of_node, 0) : - clk_get(&pdev->dev, "refclk"); + clk = clk_get(&pdev->dev, "refclk"); + if (IS_ERR(clk) && pdev->dev.of_node) + clk = of_clk_get(pdev->dev.of_node, 0); + if (IS_ERR(clk)) return -ENODEV; -- cgit v1.2.3 From 4ad1ceec05e49175d0f967cc87628101e79176f6 Mon Sep 17 00:00:00 2001 From: Troy Kisky Date: Fri, 3 Nov 2017 10:29:59 -0700 Subject: net: fec: Let fec_ptp have its own interrupt routine This is better for code locality and should slightly speed up normal interrupts. This also allows PPS clock output to start working for i.mx7. This is because i.mx7 was already using the limit of 3 interrupts, and needed another. Signed-off-by: Troy Kisky Acked-by: Fugang Duan Signed-off-by: David S. Miller --- Documentation/devicetree/bindings/net/fsl-fec.txt | 13 ++++ drivers/net/ethernet/freescale/fec.h | 3 +- drivers/net/ethernet/freescale/fec_main.c | 31 ++++++--- drivers/net/ethernet/freescale/fec_ptp.c | 82 +++++++++++++---------- 4 files changed, 84 insertions(+), 45 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/fsl-fec.txt b/Documentation/devicetree/bindings/net/fsl-fec.txt index 6f55bdd52f8a..f0dc94409107 100644 --- a/Documentation/devicetree/bindings/net/fsl-fec.txt +++ b/Documentation/devicetree/bindings/net/fsl-fec.txt @@ -34,6 +34,19 @@ Optional properties: - fsl,err006687-workaround-present: If present indicates that the system has the hardware workaround for ERR006687 applied and does not need a software workaround. + -interrupt-names: names of the interrupts listed in interrupts property in + the same order. The defaults if not specified are + __Number of interrupts__ __Default__ + 1 "int0" + 2 "int0", "pps" + 3 "int0", "int1", "int2" + 4 "int0", "int1", "int2", "pps" + The order may be changed as long as they correspond to the interrupts + property. Currently, only i.mx7 uses "int1" and "int2". They correspond to + tx/rx queues 1 and 2. "int0" will be used for queue 0 and ENET_MII interrupts. + For imx6sx, "int0" handles all 3 queues and ENET_MII. "pps" is for the pulse + per second interrupt associated with 1588 precision time protocol(PTP). + Optional subnodes: - mdio : specifies the mdio bus in the FEC, used as a container for phy nodes diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index 44720f83af27..5385074b3b7d 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -583,12 +583,11 @@ struct fec_enet_private { u64 ethtool_stats[0]; }; -void fec_ptp_init(struct platform_device *pdev); +void fec_ptp_init(struct platform_device *pdev, int irq_idx); void fec_ptp_stop(struct platform_device *pdev); void fec_ptp_start_cyclecounter(struct net_device *ndev); int fec_ptp_set(struct net_device *ndev, struct ifreq *ifr); int fec_ptp_get(struct net_device *ndev, struct ifreq *ifr); -uint fec_ptp_check_pps_event(struct fec_enet_private *fep); /****************************************************************************/ #endif /* FEC_H */ diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 3dc2d771a222..610573855213 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1602,10 +1602,6 @@ fec_enet_interrupt(int irq, void *dev_id) ret = IRQ_HANDLED; complete(&fep->mdio_done); } - - if (fep->ptp_clock) - if (fec_ptp_check_pps_event(fep)) - ret = IRQ_HANDLED; return ret; } @@ -3312,6 +3308,19 @@ fec_enet_get_queue_num(struct platform_device *pdev, int *num_tx, int *num_rx) } +static int fec_enet_get_irq_cnt(struct platform_device *pdev) +{ + int irq_cnt = platform_irq_count(pdev); + + if (irq_cnt > FEC_IRQ_NUM) + irq_cnt = FEC_IRQ_NUM; /* last for pps */ + else if (irq_cnt == 2) + irq_cnt = 1; /* last for pps */ + else if (irq_cnt <= 0) + irq_cnt = 1; /* At least 1 irq is needed */ + return irq_cnt; +} + static int fec_probe(struct platform_device *pdev) { @@ -3325,6 +3334,8 @@ fec_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node, *phy_node; int num_tx_qs; int num_rx_qs; + char irq_name[8]; + int irq_cnt; fec_enet_get_queue_num(pdev, &num_tx_qs, &num_rx_qs); @@ -3465,18 +3476,20 @@ fec_probe(struct platform_device *pdev) if (ret) goto failed_reset; + irq_cnt = fec_enet_get_irq_cnt(pdev); if (fep->bufdesc_ex) - fec_ptp_init(pdev); + fec_ptp_init(pdev, irq_cnt); ret = fec_enet_init(ndev); if (ret) goto failed_init; - for (i = 0; i < FEC_IRQ_NUM; i++) { - irq = platform_get_irq(pdev, i); + for (i = 0; i < irq_cnt; i++) { + sprintf(irq_name, "int%d", i); + irq = platform_get_irq_byname(pdev, irq_name); + if (irq < 0) + irq = platform_get_irq(pdev, i); if (irq < 0) { - if (i) - break; ret = irq; goto failed_irq; } diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c index 6ebad3fac81d..f81439796ac7 100644 --- a/drivers/net/ethernet/freescale/fec_ptp.c +++ b/drivers/net/ethernet/freescale/fec_ptp.c @@ -549,6 +549,37 @@ static void fec_time_keep(struct work_struct *work) schedule_delayed_work(&fep->time_keep, HZ); } +/* This function checks the pps event and reloads the timer compare counter. */ +static irqreturn_t fec_pps_interrupt(int irq, void *dev_id) +{ + struct net_device *ndev = dev_id; + struct fec_enet_private *fep = netdev_priv(ndev); + u32 val; + u8 channel = fep->pps_channel; + struct ptp_clock_event event; + + val = readl(fep->hwp + FEC_TCSR(channel)); + if (val & FEC_T_TF_MASK) { + /* Write the next next compare(not the next according the spec) + * value to the register + */ + writel(fep->next_counter, fep->hwp + FEC_TCCR(channel)); + do { + writel(val, fep->hwp + FEC_TCSR(channel)); + } while (readl(fep->hwp + FEC_TCSR(channel)) & FEC_T_TF_MASK); + + /* Update the counter; */ + fep->next_counter = (fep->next_counter + fep->reload_period) & + fep->cc.mask; + + event.type = PTP_CLOCK_PPS; + ptp_clock_event(fep->ptp_clock, &event); + return IRQ_HANDLED; + } + + return IRQ_NONE; +} + /** * fec_ptp_init * @ndev: The FEC network adapter @@ -558,10 +589,12 @@ static void fec_time_keep(struct work_struct *work) * cyclecounter init routine and exits. */ -void fec_ptp_init(struct platform_device *pdev) +void fec_ptp_init(struct platform_device *pdev, int irq_idx) { struct net_device *ndev = platform_get_drvdata(pdev); struct fec_enet_private *fep = netdev_priv(ndev); + int irq; + int ret; fep->ptp_caps.owner = THIS_MODULE; snprintf(fep->ptp_caps.name, 16, "fec ptp"); @@ -587,6 +620,20 @@ void fec_ptp_init(struct platform_device *pdev) INIT_DELAYED_WORK(&fep->time_keep, fec_time_keep); + irq = platform_get_irq_byname(pdev, "pps"); + if (irq < 0) + irq = platform_get_irq(pdev, irq_idx); + /* Failure to get an irq is not fatal, + * only the PTP_CLOCK_PPS clock events should stop + */ + if (irq >= 0) { + ret = devm_request_irq(&pdev->dev, irq, fec_pps_interrupt, + 0, pdev->name, ndev); + if (ret < 0) + dev_warn(&pdev->dev, "request for pps irq failed(%d)\n", + ret); + } + fep->ptp_clock = ptp_clock_register(&fep->ptp_caps, &pdev->dev); if (IS_ERR(fep->ptp_clock)) { fep->ptp_clock = NULL; @@ -605,36 +652,3 @@ void fec_ptp_stop(struct platform_device *pdev) if (fep->ptp_clock) ptp_clock_unregister(fep->ptp_clock); } - -/** - * fec_ptp_check_pps_event - * @fep: the fec_enet_private structure handle - * - * This function check the pps event and reload the timer compare counter. - */ -uint fec_ptp_check_pps_event(struct fec_enet_private *fep) -{ - u32 val; - u8 channel = fep->pps_channel; - struct ptp_clock_event event; - - val = readl(fep->hwp + FEC_TCSR(channel)); - if (val & FEC_T_TF_MASK) { - /* Write the next next compare(not the next according the spec) - * value to the register - */ - writel(fep->next_counter, fep->hwp + FEC_TCCR(channel)); - do { - writel(val, fep->hwp + FEC_TCSR(channel)); - } while (readl(fep->hwp + FEC_TCSR(channel)) & FEC_T_TF_MASK); - - /* Update the counter; */ - fep->next_counter = (fep->next_counter + fep->reload_period) & fep->cc.mask; - - event.type = PTP_CLOCK_PPS; - ptp_clock_event(fep->ptp_clock, &event); - return 1; - } - - return 0; -} -- cgit v1.2.3 From 7afc19bc217475000e5cd8eb0009665453c8439e Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Sun, 5 Nov 2017 15:58:26 -0800 Subject: ila: Add ila.txt Add documenation for kernel ILA. This describes ILA, features, configuration gives some examples. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller --- Documentation/networking/ila.txt | 285 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 285 insertions(+) create mode 100644 Documentation/networking/ila.txt (limited to 'Documentation') diff --git a/Documentation/networking/ila.txt b/Documentation/networking/ila.txt new file mode 100644 index 000000000000..78df879abd26 --- /dev/null +++ b/Documentation/networking/ila.txt @@ -0,0 +1,285 @@ +Identifier Locator Addressing (ILA) + + +Introduction +============ + +Identifier-locator addressing (ILA) is a technique used with IPv6 that +differentiates between location and identity of a network node. Part of an +address expresses the immutable identity of the node, and another part +indicates the location of the node which can be dynamic. Identifier-locator +addressing can be used to efficiently implement overlay networks for +network virtualization as well as solutions for use cases in mobility. + +ILA can be thought of as means to implement an overlay network without +encapsulation. This is accomplished by performing network address +translation on destination addresses as a packet traverses a network. To +the network, an ILA translated packet appears to be no different than any +other IPv6 packet. For instance, if the transport protocol is TCP then an +ILA translated packet looks like just another TCP/IPv6 packet. The +advantage of this is that ILA is transparent to the network so that +optimizations in the network, such as ECMP, RSS, GRO, GSO, etc., just work. + +The ILA protocol is described in Internet-Draft draft-herbert-intarea-ila. + + +ILA terminology +=============== + + - Identifier A number that identifies an addressable node in the network + independent of its location. ILA identifiers are sixty-four + bit values. + + - Locator A network prefix that routes to a physical host. Locators + provide the topological location of an addressed node. ILA + locators are sixty-four bit prefixes. + + - ILA mapping + A mapping of an ILA identifier to a locator (or to a + locator and meta data). An ILA domain maintains a database + that contains mappings for all destinations in the domain. + + - SIR address + An IPv6 address composed of a SIR prefix (upper sixty- + four bits) and an identifier (lower sixty-four bits). + SIR addresses are visible to applications and provide a + means for them to address nodes independent of their + location. + + - ILA address + An IPv6 address composed of a locator (upper sixty-four + bits) and an identifier (low order sixty-four bits). ILA + addresses are never visible to an application. + + - ILA host An end host that is capable of performing ILA translations + on transmit or receive. + + - ILA router A network node that performs ILA translation and forwarding + of translated packets. + + - ILA forwarding cache + A type of ILA router that only maintains a working set + cache of mappings. + + - ILA node A network node capable of performing ILA translations. This + can be an ILA router, ILA forwarding cache, or ILA host. + + +Operation +========= + +There are two fundamental operations with ILA: + + - Translate a SIR address to an ILA address. This is performed on ingress + to an ILA overlay. + + - Translate an ILA address to a SIR address. This is performed on egress + from the ILA overlay. + +ILA can be deployed either on end hosts or intermediate devices in the +network; these are provided by "ILA hosts" and "ILA routers" respectively. +Configuration and datapath for these two points of deployment is somewhat +different. + +The diagram below illustrates the flow of packets through ILA as well +as showing ILA hosts and routers. + + +--------+ +--------+ + | Host A +-+ +--->| Host B | + | | | (2) ILA (') | | + +--------+ | ...addressed.... ( ) +--------+ + V +---+--+ . packet . +---+--+ (_) + (1) SIR | | ILA |----->-------->---->| ILA | | (3) SIR + addressed +->|router| . . |router|->-+ addressed + packet +---+--+ . IPv6 . +---+--+ packet + / . Network . + / . . +--+-++--------+ + +--------+ / . . |ILA || Host | + | Host +--+ . .- -|host|| | + | | . . +--+-++--------+ + +--------+ ................ + + +Transport checksum handling +=========================== + +When an address is translated by ILA, an encapsulated transport checksum +that includes the translated address in a pseudo header may be rendered +incorrect on the wire. This is a problem for intermediate devices, +including checksum offload in NICs, that process the checksum. There are +three options to deal with this: + +- no action Allow the checksum to be incorrect on the wire. Before + a receiver verifies a checksum the ILA to SIR address + translation must be done. + +- adjust transport checksum + When ILA translation is performed the packet is parsed + and if a transport layer checksum is found then it is + adjusted to reflect the correct checksum per the + translated address. + +- checksum neutral mapping + When an address is translated the difference can be offset + elsewhere in a part of the packet that is covered by the + the checksum. The low order sixteen bits of the identifier + are used. This method is preferred since it doesn't require + parsing a packet beyond the IP header and in most cases the + adjustment can be precomputed and saved with the mapping. + +Note that the checksum neutral adjustment affects the low order sixteen +bits of the identifier. When ILA to SIR address translation is done on +egress the low order bits are restored to the original value which +restores the identifier as it was originally sent. + + +Identifier types +================ + +ILA defines different types of identifiers for different use cases. + +The defined types are: + + 0: interface identifier + + 1: locally unique identifier + + 2: virtual networking identifier for IPv4 address + + 3: virtual networking identifier for IPv6 unicast address + + 4: virtual networking identifier for IPv6 multicast address + + 5: non-local address identifier + +In the current implementation of kernel ILA only locally unique identifiers +(LUID) are supported. LUID allows for a generic, unformatted 64 bit +identifier. + + +Identifier formats +================== + +Kernel ILA supports two optional fields in an identifier for formatting: +"C-bit" and "identifier type". The presence of these fields is determined +by configuration as demonstrated below. + +If the identifier type is present it occupies the three highest order +bits of an identifier. The possible values are given in the above list. + +If the C-bit is present, this is used as an indication that checksum +neutral mapping has been done. The C-bit can only be set in an +ILA address, never a SIR address. + +In the simplest format the identifier types, C-bit, and checksum +adjustment value are not present so an identifier is considered an +unstructured sixty-four bit value. + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Identifier | + + + + | | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + +The checksum neutral adjustment may be configured to always be +present using neutral-map-auto. In this case there is no C-bit, but the +checksum adjustment is in the low order 16 bits. The identifier is +still sixty-four bits. + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Identifier | + | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | Checksum-neutral adjustment | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + +The C-bit may used to explicitly indicate that checksum neutral +mapping has been applied to an ILA address. The format is: + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | |C| Identifier | + | +-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | Checksum-neutral adjustment | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + +The identifier type field may be present to indicate the identifier +type. If it is not present then the type is inferred based on mapping +configuration. The checksum neutral adjustment may automatically +used with the identifier type as illustrated below. + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Type| Identifier | + +-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | Checksum-neutral adjustment | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + +If the identifier type and the C-bit can be present simultaneously so +the identifier format would be: + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Type|C| Identifier | + +-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | | Checksum-neutral adjustment | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + +Configuration +============= + +There are two methods to configure ILA mappings. One is by using LWT routes +and the other is ila_xlat (called from NFHOOK PREROUTING hook). ila_xlat +is intended to be used in the receive path for ILA hosts . + +An ILA router has also been implemented in XDP. Description of that is +outside the scope of this document. + +The usage of for ILA LWT routes is: + +ip route add DEST/128 encap ila LOC csum-mode MODE ident-type TYPE via ADDR + +Destination (DEST) can either be a SIR address (for an ILA host or ingress +ILA router) or an ILA address (egress ILA router). LOC is the sixty-four +bit locator (with format W:X:Y:Z) that overwrites the upper sixty-four +bits of the destination address. Checksum MODE is one of "no-action", +"adj-transport", "neutral-map", and "neutral-map-auto". If neutral-map is +set then the C-bit will be present. Identifier TYPE one of "luid" or +"use-format." In the case of use-format, the identifier type field is +present and the effective type is taken from that. + +The usage of ila_xlat is: + +ip ila add loc_match MATCH loc LOC csum-mode MODE ident-type TYPE + +MATCH indicates the incoming locator that must be matched to apply +a the translaiton. LOC is the locator that overwrites the upper +sixty-four bits of the destination address. MODE and TYPE have the +same meanings as described above. + + +Some examples +============= + +# Configure an ILA route that uses checksum neutral mapping as well +# as type field. Note that the type field is set in the SIR address +# (the 2000 implies type is 1 which is LUID). +ip route add 3333:0:0:1:2000:0:1:87/128 encap ila 2001:0:87:0 \ + csum-mode neutral-map ident-type use-format + +# Configure an ILA LWT route that uses auto checksum neutral mapping +# (no C-bit) and configure identifier type to be LUID so that the +# identifier type field will not be present. +ip route add 3333:0:0:1:2000:0:2:87/128 encap ila 2001:0:87:1 \ + csum-mode neutral-map-auto ident-type luid + +ila_xlat configuration + +# Configure an ILA to SIR mapping that matches a locator and overwrites +# it with a SIR address (3333:0:0:1 in this example). The C-bit and +# identifier field are used. +ip ila add loc_match 2001:0:119:0 loc 3333:0:0:1 \ + csum-mode neutral-map-auto ident-type use-format + +# Configure an ILA to SIR mapping where checksum neutral is automatically +# set without the C-bit and the identifier type is configured to be LUID +# so that the identifier type field is not present. +ip ila add loc_match 2001:0:119:0 loc 3333:0:0:1 \ + csum-mode neutral-map-auto ident-type use-format -- cgit v1.2.3 From 68d50fa494f6265288b60151a6460b33290593c2 Mon Sep 17 00:00:00 2001 From: Egil Hjelmeland Date: Mon, 6 Nov 2017 12:42:02 +0100 Subject: net: dsa: lan9303: Fix syntax errors in device tree examples Signed-off-by: Egil Hjelmeland Reviewed-by: Vivien Didelot Signed-off-by: David S. Miller --- Documentation/devicetree/bindings/net/dsa/lan9303.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/dsa/lan9303.txt b/Documentation/devicetree/bindings/net/dsa/lan9303.txt index 4448d063ddf6..464d6bf87605 100644 --- a/Documentation/devicetree/bindings/net/dsa/lan9303.txt +++ b/Documentation/devicetree/bindings/net/dsa/lan9303.txt @@ -52,7 +52,7 @@ I2C managed mode: port@1 { /* external port 1 */ reg = <1>; - label = "lan1; + label = "lan1"; }; port@2 { /* external port 2 */ @@ -89,7 +89,7 @@ MDIO managed mode: port@1 { /* external port 1 */ reg = <1>; - label = "lan1; + label = "lan1"; }; port@2 { /* external port 2 */ -- cgit v1.2.3 From a9687aa2764dd2669602bd19dc636cbeef5293d5 Mon Sep 17 00:00:00 2001 From: Eric Nelson Date: Wed, 1 Nov 2017 08:01:20 -0700 Subject: rtc: add support for NXP PCF85363 real-time clock Note that alarms are not currently implemented. 64 bytes of nvmem is supported and exposed in sysfs (# is the instance number, starting with 0): /sys/bus/nvmem/devices/pcf85363-#/nvmem Signed-off-by: Eric Nelson Reviewed-by: Fabio Estevam Tested-by: Alexandre Belloni Acked-by: Rob Herring Signed-off-by: Alexandre Belloni --- Documentation/devicetree/bindings/rtc/pcf85363.txt | 17 ++ drivers/rtc/Kconfig | 13 ++ drivers/rtc/Makefile | 1 + drivers/rtc/rtc-pcf85363.c | 220 +++++++++++++++++++++ 4 files changed, 251 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/pcf85363.txt create mode 100644 drivers/rtc/rtc-pcf85363.c (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/rtc/pcf85363.txt b/Documentation/devicetree/bindings/rtc/pcf85363.txt new file mode 100644 index 000000000000..76fdabc59742 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/pcf85363.txt @@ -0,0 +1,17 @@ +NXP PCF85363 Real Time Clock +============================ + +Required properties: +- compatible: Should contain "nxp,pcf85363". +- reg: I2C address for chip. + +Optional properties: +- interrupts: IRQ line for the RTC (not implemented). + +Example: + +pcf85363: pcf85363@51 { + compatible = "nxp,pcf85363"; + reg = <0x51>; +}; + diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 616fe53c788e..47663e03f9a8 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -433,6 +433,19 @@ config RTC_DRV_PCF85063 This driver can also be built as a module. If so, the module will be called rtc-pcf85063. +config RTC_DRV_PCF85363 + tristate "NXP PCF85363" + depends on I2C + select REGMAP_I2C + help + If you say yes here you get support for the PCF85363 RTC chip. + + This driver can also be built as a module. If so, the module + will be called rtc-pcf85363. + + The nvmem interface will be named pcf85363-#, where # is the + zero-based instance number. + config RTC_DRV_PCF8563 tristate "Philips PCF8563/Epson RTC8564" help diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index 5ec891a81f4f..0b5acd6b5cc3 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -114,6 +114,7 @@ obj-$(CONFIG_RTC_DRV_PCF2123) += rtc-pcf2123.o obj-$(CONFIG_RTC_DRV_PCF2127) += rtc-pcf2127.o obj-$(CONFIG_RTC_DRV_PCF50633) += rtc-pcf50633.o obj-$(CONFIG_RTC_DRV_PCF85063) += rtc-pcf85063.o +obj-$(CONFIG_RTC_DRV_PCF85363) += rtc-pcf85363.o obj-$(CONFIG_RTC_DRV_PCF8523) += rtc-pcf8523.o obj-$(CONFIG_RTC_DRV_PCF8563) += rtc-pcf8563.o obj-$(CONFIG_RTC_DRV_PCF8583) += rtc-pcf8583.o diff --git a/drivers/rtc/rtc-pcf85363.c b/drivers/rtc/rtc-pcf85363.c new file mode 100644 index 000000000000..ea04e9f0930b --- /dev/null +++ b/drivers/rtc/rtc-pcf85363.c @@ -0,0 +1,220 @@ +/* + * drivers/rtc/rtc-pcf85363.c + * + * Driver for NXP PCF85363 real-time clock. + * + * Copyright (C) 2017 Eric Nelson + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Based loosely on rtc-8583 by Russell King, Wolfram Sang and Juergen Beisert + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * Date/Time registers + */ +#define DT_100THS 0x00 +#define DT_SECS 0x01 +#define DT_MINUTES 0x02 +#define DT_HOURS 0x03 +#define DT_DAYS 0x04 +#define DT_WEEKDAYS 0x05 +#define DT_MONTHS 0x06 +#define DT_YEARS 0x07 + +/* + * Alarm registers + */ +#define DT_SECOND_ALM1 0x08 +#define DT_MINUTE_ALM1 0x09 +#define DT_HOUR_ALM1 0x0a +#define DT_DAY_ALM1 0x0b +#define DT_MONTH_ALM1 0x0c +#define DT_MINUTE_ALM2 0x0d +#define DT_HOUR_ALM2 0x0e +#define DT_WEEKDAY_ALM2 0x0f +#define DT_ALARM_EN 0x10 + +/* + * Time stamp registers + */ +#define DT_TIMESTAMP1 0x11 +#define DT_TIMESTAMP2 0x17 +#define DT_TIMESTAMP3 0x1d +#define DT_TS_MODE 0x23 + +/* + * control registers + */ +#define CTRL_OFFSET 0x24 +#define CTRL_OSCILLATOR 0x25 +#define CTRL_BATTERY 0x26 +#define CTRL_PIN_IO 0x27 +#define CTRL_FUNCTION 0x28 +#define CTRL_INTA_EN 0x29 +#define CTRL_INTB_EN 0x2a +#define CTRL_FLAGS 0x2b +#define CTRL_RAMBYTE 0x2c +#define CTRL_WDOG 0x2d +#define CTRL_STOP_EN 0x2e +#define CTRL_RESETS 0x2f +#define CTRL_RAM 0x40 + +#define NVRAM_SIZE 0x40 + +static struct i2c_driver pcf85363_driver; + +struct pcf85363 { + struct device *dev; + struct rtc_device *rtc; + struct nvmem_config nvmem_cfg; + struct regmap *regmap; +}; + +static int pcf85363_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + struct pcf85363 *pcf85363 = dev_get_drvdata(dev); + unsigned char buf[DT_YEARS + 1]; + int ret, len = sizeof(buf); + + /* read the RTC date and time registers all at once */ + ret = regmap_bulk_read(pcf85363->regmap, DT_100THS, buf, len); + if (ret) { + dev_err(dev, "%s: error %d\n", __func__, ret); + return ret; + } + + tm->tm_year = bcd2bin(buf[DT_YEARS]); + /* adjust for 1900 base of rtc_time */ + tm->tm_year += 100; + + tm->tm_wday = buf[DT_WEEKDAYS] & 7; + buf[DT_SECS] &= 0x7F; + tm->tm_sec = bcd2bin(buf[DT_SECS]); + buf[DT_MINUTES] &= 0x7F; + tm->tm_min = bcd2bin(buf[DT_MINUTES]); + tm->tm_hour = bcd2bin(buf[DT_HOURS]); + tm->tm_mday = bcd2bin(buf[DT_DAYS]); + tm->tm_mon = bcd2bin(buf[DT_MONTHS]) - 1; + + return 0; +} + +static int pcf85363_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + struct pcf85363 *pcf85363 = dev_get_drvdata(dev); + unsigned char buf[DT_YEARS + 1]; + int len = sizeof(buf); + + buf[DT_100THS] = 0; + buf[DT_SECS] = bin2bcd(tm->tm_sec); + buf[DT_MINUTES] = bin2bcd(tm->tm_min); + buf[DT_HOURS] = bin2bcd(tm->tm_hour); + buf[DT_DAYS] = bin2bcd(tm->tm_mday); + buf[DT_WEEKDAYS] = tm->tm_wday; + buf[DT_MONTHS] = bin2bcd(tm->tm_mon + 1); + buf[DT_YEARS] = bin2bcd(tm->tm_year % 100); + + return regmap_bulk_write(pcf85363->regmap, DT_100THS, + buf, len); +} + +static const struct rtc_class_ops rtc_ops = { + .read_time = pcf85363_rtc_read_time, + .set_time = pcf85363_rtc_set_time, +}; + +static int pcf85363_nvram_read(void *priv, unsigned int offset, void *val, + size_t bytes) +{ + struct pcf85363 *pcf85363 = priv; + + return regmap_bulk_read(pcf85363->regmap, CTRL_RAM + offset, + val, bytes); +} + +static int pcf85363_nvram_write(void *priv, unsigned int offset, void *val, + size_t bytes) +{ + struct pcf85363 *pcf85363 = priv; + + return regmap_bulk_write(pcf85363->regmap, CTRL_RAM + offset, + val, bytes); +} + +static const struct regmap_config regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int pcf85363_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct pcf85363 *pcf85363; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) + return -ENODEV; + + pcf85363 = devm_kzalloc(&client->dev, sizeof(struct pcf85363), + GFP_KERNEL); + if (!pcf85363) + return -ENOMEM; + + pcf85363->regmap = devm_regmap_init_i2c(client, ®map_config); + if (IS_ERR(pcf85363->regmap)) { + dev_err(&client->dev, "regmap allocation failed\n"); + return PTR_ERR(pcf85363->regmap); + } + + pcf85363->dev = &client->dev; + i2c_set_clientdata(client, pcf85363); + + pcf85363->rtc = devm_rtc_allocate_device(pcf85363->dev); + if (IS_ERR(pcf85363->rtc)) + return PTR_ERR(pcf85363->rtc); + + pcf85363->nvmem_cfg.name = "pcf85363-"; + pcf85363->nvmem_cfg.word_size = 1; + pcf85363->nvmem_cfg.stride = 1; + pcf85363->nvmem_cfg.size = NVRAM_SIZE; + pcf85363->nvmem_cfg.reg_read = pcf85363_nvram_read; + pcf85363->nvmem_cfg.reg_write = pcf85363_nvram_write; + pcf85363->nvmem_cfg.priv = pcf85363; + pcf85363->rtc->nvmem_config = &pcf85363->nvmem_cfg; + pcf85363->rtc->ops = &rtc_ops; + + return rtc_register_device(pcf85363->rtc); +} + +static const struct of_device_id dev_ids[] = { + { .compatible = "nxp,pcf85363" }, + {} +}; +MODULE_DEVICE_TABLE(of, dev_ids); + +static struct i2c_driver pcf85363_driver = { + .driver = { + .name = "pcf85363", + .of_match_table = of_match_ptr(dev_ids), + }, + .probe = pcf85363_probe, +}; + +module_i2c_driver(pcf85363_driver); + +MODULE_AUTHOR("Eric Nelson"); +MODULE_DESCRIPTION("pcf85363 I2C RTC driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 47427379ea80f1368ccec6ba20874fc19a9f0cc4 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 7 Nov 2017 10:28:06 -0800 Subject: documentation: fb: update list of available compiled-in fonts Update list of available compiled-in fonts in lib/fonts/: add 6x10 and drop RomanLarge (which was reverted 12 years ago). Also sort the list alphabetically. Signed-off-by: Randy Dunlap Acked-by: Geert Uytterhoeven # v1 Signed-off-by: Jonathan Corbet --- Documentation/fb/fbcon.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/fb/fbcon.txt b/Documentation/fb/fbcon.txt index a38d3aa4d189..79c22d096bbc 100644 --- a/Documentation/fb/fbcon.txt +++ b/Documentation/fb/fbcon.txt @@ -77,8 +77,8 @@ C. Boot options 1. fbcon=font: Select the initial font to use. The value 'name' can be any of the - compiled-in fonts: VGA8x16, 7x14, 10x18, VGA8x8, MINI4x6, RomanLarge, - SUN8x16, SUN12x22, ProFont6x11, Acorn8x8, PEARL8x8. + compiled-in fonts: 10x18, 6x10, 7x14, Acorn8x8, MINI4x6, + PEARL8x8, ProFont6x11, SUN12x22, SUN8x16, VGA8x16, VGA8x8. Note, not all drivers can handle font with widths not divisible by 8, such as vga16fb. -- cgit v1.2.3 From 0759e80b84e34a84e7e46e2b1adb528c83d84a47 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 7 Nov 2017 11:33:49 +0100 Subject: PM / QoS: Fix device resume latency framework The special value of 0 for device resume latency PM QoS means "no restriction", but there are two problems with that. First, device resume latency PM QoS requests with 0 as the value are always put in front of requests with positive values in the priority lists used internally by the PM QoS framework, causing 0 to be chosen as an effective constraint value. However, that 0 is then interpreted as "no restriction" effectively overriding the other requests with specific restrictions which is incorrect. Second, the users of device resume latency PM QoS have no way to specify that *any* resume latency at all should be avoided, which is an artificial limitation in general. To address these issues, modify device resume latency PM QoS to use S32_MAX as the "no constraint" value and 0 as the "no latency at all" one and rework its users (the cpuidle menu governor, the genpd QoS governor and the runtime PM framework) to follow these changes. Also add a special "n/a" value to the corresponding user space I/F to allow user space to indicate that it cannot accept any resume latencies at all for the given device. Fixes: 85dc0b8a4019 (PM / QoS: Make it possible to expose PM QoS latency constraints) Link: https://bugzilla.kernel.org/show_bug.cgi?id=197323 Reported-by: Reinette Chatre Signed-off-by: Rafael J. Wysocki Tested-by: Reinette Chatre Tested-by: Geert Uytterhoeven Tested-by: Tero Kristo Reviewed-by: Ramesh Thomas --- Documentation/ABI/testing/sysfs-devices-power | 4 ++- drivers/base/cpu.c | 3 +- drivers/base/power/domain.c | 2 +- drivers/base/power/domain_governor.c | 40 +++++++++++---------------- drivers/base/power/qos.c | 5 +++- drivers/base/power/runtime.c | 2 +- drivers/base/power/sysfs.c | 25 ++++++++++++++--- drivers/cpuidle/governors/menu.c | 4 +-- include/linux/pm_qos.h | 26 +++++++++++------ 9 files changed, 68 insertions(+), 43 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power index f4b24c327665..80a00f7b6667 100644 --- a/Documentation/ABI/testing/sysfs-devices-power +++ b/Documentation/ABI/testing/sysfs-devices-power @@ -211,7 +211,9 @@ Description: device, after it has been suspended at run time, from a resume request to the moment the device will be ready to process I/O, in microseconds. If it is equal to 0, however, this means that - the PM QoS resume latency may be arbitrary. + the PM QoS resume latency may be arbitrary and the special value + "n/a" means that user space cannot accept any resume latency at + all for the given device. Not all drivers support this attribute. If it isn't supported, it is not present. diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 321cd7b4d817..227bac5f1191 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -377,7 +377,8 @@ int register_cpu(struct cpu *cpu, int num) per_cpu(cpu_sys_devices, num) = &cpu->dev; register_cpu_under_node(num, cpu_to_node(num)); - dev_pm_qos_expose_latency_limit(&cpu->dev, 0); + dev_pm_qos_expose_latency_limit(&cpu->dev, + PM_QOS_RESUME_LATENCY_NO_CONSTRAINT); return 0; } diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 679c79545e42..24e39ce27bd8 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -1326,7 +1326,7 @@ static struct generic_pm_domain_data *genpd_alloc_dev_data(struct device *dev, gpd_data->base.dev = dev; gpd_data->td.constraint_changed = true; - gpd_data->td.effective_constraint_ns = 0; + gpd_data->td.effective_constraint_ns = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS; gpd_data->nb.notifier_call = genpd_dev_pm_qos_notifier; spin_lock_irq(&dev->power.lock); diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c index e4cca8adab32..99896fbf18e4 100644 --- a/drivers/base/power/domain_governor.c +++ b/drivers/base/power/domain_governor.c @@ -33,15 +33,10 @@ static int dev_update_qos_constraint(struct device *dev, void *data) * known at this point anyway). */ constraint_ns = dev_pm_qos_read_value(dev); - if (constraint_ns > 0) - constraint_ns *= NSEC_PER_USEC; + constraint_ns *= NSEC_PER_USEC; } - /* 0 means "no constraint" */ - if (constraint_ns == 0) - return 0; - - if (constraint_ns < *constraint_ns_p || *constraint_ns_p == 0) + if (constraint_ns < *constraint_ns_p) *constraint_ns_p = constraint_ns; return 0; @@ -69,12 +64,12 @@ static bool default_suspend_ok(struct device *dev) } td->constraint_changed = false; td->cached_suspend_ok = false; - td->effective_constraint_ns = -1; + td->effective_constraint_ns = 0; constraint_ns = __dev_pm_qos_read_value(dev); spin_unlock_irqrestore(&dev->power.lock, flags); - if (constraint_ns < 0) + if (constraint_ns == 0) return false; constraint_ns *= NSEC_PER_USEC; @@ -87,25 +82,25 @@ static bool default_suspend_ok(struct device *dev) device_for_each_child(dev, &constraint_ns, dev_update_qos_constraint); - if (constraint_ns == 0) { + if (constraint_ns == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS) { /* "No restriction", so the device is allowed to suspend. */ - td->effective_constraint_ns = 0; + td->effective_constraint_ns = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS; td->cached_suspend_ok = true; - } else if (constraint_ns < 0) { + } else if (constraint_ns == 0) { /* * This triggers if one of the children that don't belong to a - * domain has a negative PM QoS constraint and it's better not - * to suspend then. effective_constraint_ns is negative already - * and cached_suspend_ok is false, so bail out. + * domain has a zero PM QoS constraint and it's better not to + * suspend then. effective_constraint_ns is zero already and + * cached_suspend_ok is false, so bail out. */ return false; } else { constraint_ns -= td->suspend_latency_ns + td->resume_latency_ns; /* - * effective_constraint_ns is negative already and - * cached_suspend_ok is false, so if the computed value is not - * positive, return right away. + * effective_constraint_ns is zero already and cached_suspend_ok + * is false, so if the computed value is not positive, return + * right away. */ if (constraint_ns <= 0) return false; @@ -174,13 +169,10 @@ static bool __default_power_down_ok(struct dev_pm_domain *pd, td = &to_gpd_data(pdd)->td; constraint_ns = td->effective_constraint_ns; /* - * Negative values mean "no suspend at all" and this runs only - * when all devices in the domain are suspended, so it must be - * 0 at least. - * - * 0 means "no constraint" + * Zero means "no suspend at all" and this runs only when all + * devices in the domain are suspended, so it must be positive. */ - if (constraint_ns == 0) + if (constraint_ns == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS) continue; if (constraint_ns <= off_on_time_ns) diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c index 277d43a83f53..3382542b39b7 100644 --- a/drivers/base/power/qos.c +++ b/drivers/base/power/qos.c @@ -139,6 +139,9 @@ static int apply_constraint(struct dev_pm_qos_request *req, switch(req->type) { case DEV_PM_QOS_RESUME_LATENCY: + if (WARN_ON(action != PM_QOS_REMOVE_REQ && value < 0)) + value = 0; + ret = pm_qos_update_target(&qos->resume_latency, &req->data.pnode, action, value); break; @@ -189,7 +192,7 @@ static int dev_pm_qos_constraints_allocate(struct device *dev) plist_head_init(&c->list); c->target_value = PM_QOS_RESUME_LATENCY_DEFAULT_VALUE; c->default_value = PM_QOS_RESUME_LATENCY_DEFAULT_VALUE; - c->no_constraint_value = PM_QOS_RESUME_LATENCY_DEFAULT_VALUE; + c->no_constraint_value = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; c->type = PM_QOS_MIN; c->notifiers = n; diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 7bcf80fa9ada..13e015905543 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -253,7 +253,7 @@ static int rpm_check_suspend_allowed(struct device *dev) || (dev->power.request_pending && dev->power.request == RPM_REQ_RESUME)) retval = -EAGAIN; - else if (__dev_pm_qos_read_value(dev) < 0) + else if (__dev_pm_qos_read_value(dev) == 0) retval = -EPERM; else if (dev->power.runtime_status == RPM_SUSPENDED) retval = 1; diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c index 29bf28fef136..e153e28b1857 100644 --- a/drivers/base/power/sysfs.c +++ b/drivers/base/power/sysfs.c @@ -218,7 +218,14 @@ static ssize_t pm_qos_resume_latency_show(struct device *dev, struct device_attribute *attr, char *buf) { - return sprintf(buf, "%d\n", dev_pm_qos_requested_resume_latency(dev)); + s32 value = dev_pm_qos_requested_resume_latency(dev); + + if (value == 0) + return sprintf(buf, "n/a\n"); + else if (value == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT) + value = 0; + + return sprintf(buf, "%d\n", value); } static ssize_t pm_qos_resume_latency_store(struct device *dev, @@ -228,11 +235,21 @@ static ssize_t pm_qos_resume_latency_store(struct device *dev, s32 value; int ret; - if (kstrtos32(buf, 0, &value)) - return -EINVAL; + if (!kstrtos32(buf, 0, &value)) { + /* + * Prevent users from writing negative or "no constraint" values + * directly. + */ + if (value < 0 || value == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT) + return -EINVAL; - if (value < 0) + if (value == 0) + value = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; + } else if (!strcmp(buf, "n/a") || !strcmp(buf, "n/a\n")) { + value = 0; + } else { return -EINVAL; + } ret = dev_pm_qos_update_request(dev->power.qos->resume_latency_req, value); diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index 48eaf2879228..aa390404e85f 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -298,8 +298,8 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev) data->needs_update = 0; } - /* resume_latency is 0 means no restriction */ - if (resume_latency && resume_latency < latency_req) + if (resume_latency < latency_req && + resume_latency != PM_QOS_RESUME_LATENCY_NO_CONSTRAINT) latency_req = resume_latency; /* Special case when user has set very strict latency requirement */ diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h index 51f0d7e0b15f..2a3b36da61b1 100644 --- a/include/linux/pm_qos.h +++ b/include/linux/pm_qos.h @@ -27,16 +27,19 @@ enum pm_qos_flags_status { PM_QOS_FLAGS_ALL, }; -#define PM_QOS_DEFAULT_VALUE -1 +#define PM_QOS_DEFAULT_VALUE (-1) +#define PM_QOS_LATENCY_ANY S32_MAX +#define PM_QOS_LATENCY_ANY_NS ((s64)PM_QOS_LATENCY_ANY * NSEC_PER_USEC) #define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC) #define PM_QOS_NETWORK_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC) #define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE 0 #define PM_QOS_MEMORY_BANDWIDTH_DEFAULT_VALUE 0 -#define PM_QOS_RESUME_LATENCY_DEFAULT_VALUE 0 +#define PM_QOS_RESUME_LATENCY_DEFAULT_VALUE PM_QOS_LATENCY_ANY +#define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT PM_QOS_LATENCY_ANY +#define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS PM_QOS_LATENCY_ANY_NS #define PM_QOS_LATENCY_TOLERANCE_DEFAULT_VALUE 0 #define PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT (-1) -#define PM_QOS_LATENCY_ANY ((s32)(~(__u32)0 >> 1)) #define PM_QOS_FLAG_NO_POWER_OFF (1 << 0) @@ -173,7 +176,8 @@ static inline s32 dev_pm_qos_requested_flags(struct device *dev) static inline s32 dev_pm_qos_raw_read_value(struct device *dev) { return IS_ERR_OR_NULL(dev->power.qos) ? - 0 : pm_qos_read_value(&dev->power.qos->resume_latency); + PM_QOS_RESUME_LATENCY_NO_CONSTRAINT : + pm_qos_read_value(&dev->power.qos->resume_latency); } #else static inline enum pm_qos_flags_status __dev_pm_qos_flags(struct device *dev, @@ -183,9 +187,9 @@ static inline enum pm_qos_flags_status dev_pm_qos_flags(struct device *dev, s32 mask) { return PM_QOS_FLAGS_UNDEFINED; } static inline s32 __dev_pm_qos_read_value(struct device *dev) - { return 0; } + { return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; } static inline s32 dev_pm_qos_read_value(struct device *dev) - { return 0; } + { return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; } static inline int dev_pm_qos_add_request(struct device *dev, struct dev_pm_qos_request *req, enum dev_pm_qos_req_type type, @@ -231,9 +235,15 @@ static inline int dev_pm_qos_expose_latency_tolerance(struct device *dev) { return 0; } static inline void dev_pm_qos_hide_latency_tolerance(struct device *dev) {} -static inline s32 dev_pm_qos_requested_resume_latency(struct device *dev) { return 0; } +static inline s32 dev_pm_qos_requested_resume_latency(struct device *dev) +{ + return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; +} static inline s32 dev_pm_qos_requested_flags(struct device *dev) { return 0; } -static inline s32 dev_pm_qos_raw_read_value(struct device *dev) { return 0; } +static inline s32 dev_pm_qos_raw_read_value(struct device *dev) +{ + return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; +} #endif #endif -- cgit v1.2.3 From e0e1e39de490a2d9b8a173363ccf2415ddada871 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Sat, 28 Oct 2017 15:37:17 +0200 Subject: pinctrl: Add skew-delay pin config and bindings Some pin controllers (such as the Gemini) can control the expected clock skew and output delay on certain pins with a sub-nanosecond granularity. This is typically done by shunting in a number of double inverters in front of or behind the pin. Make it possible to configure this with a generic binding. Cc: devicetree@vger.kernel.org Acked-by: Rob Herring Acked-by: Hans Ulli Kroll Signed-off-by: Linus Walleij --- Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt | 4 ++++ drivers/pinctrl/pinconf-generic.c | 2 ++ include/linux/pinctrl/pinconf-generic.h | 5 +++++ 3 files changed, 11 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt index 4483cc31e531..ad9bbbba36e9 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt @@ -271,6 +271,10 @@ output-high - set the pin to output mode with high level sleep-hardware-state - indicate this is sleep related state which will be programmed into the registers for the sleep state. slew-rate - set the slew rate +skew-delay - this affects the expected clock skew on input pins + and the delay before latching a value to an output + pin. Typically indicates how many double-inverters are + used to delay the signal. For example: diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c index 8eaa25c3384f..b4f7f8a458ea 100644 --- a/drivers/pinctrl/pinconf-generic.c +++ b/drivers/pinctrl/pinconf-generic.c @@ -49,6 +49,7 @@ static const struct pin_config_item conf_items[] = { PCONFDUMP(PIN_CONFIG_POWER_SOURCE, "pin power source", "selector", true), PCONFDUMP(PIN_CONFIG_SLEEP_HARDWARE_STATE, "sleep hardware state", NULL, false), PCONFDUMP(PIN_CONFIG_SLEW_RATE, "slew rate", NULL, true), + PCONFDUMP(PIN_CONFIG_SKEW_DELAY, "skew delay", NULL, true), }; static void pinconf_generic_dump_one(struct pinctrl_dev *pctldev, @@ -181,6 +182,7 @@ static const struct pinconf_generic_params dt_params[] = { { "power-source", PIN_CONFIG_POWER_SOURCE, 0 }, { "sleep-hardware-state", PIN_CONFIG_SLEEP_HARDWARE_STATE, 0 }, { "slew-rate", PIN_CONFIG_SLEW_RATE, 0 }, + { "skew-delay", PIN_CONFIG_SKEW_DELAY, 0 }, }; /** diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h index 5d8bc7f21c2a..ec6dadcc1fde 100644 --- a/include/linux/pinctrl/pinconf-generic.h +++ b/include/linux/pinctrl/pinconf-generic.h @@ -90,6 +90,10 @@ * @PIN_CONFIG_SLEW_RATE: if the pin can select slew rate, the argument to * this parameter (on a custom format) tells the driver which alternative * slew rate to use. + * @PIN_CONFIG_SKEW_DELAY: if the pin has programmable skew rate (on inputs) + * or latch delay (on outputs) this parameter (in a custom format) + * specifies the clock skew or latch delay. It typically controls how + * many double inverters are put in front of the line. * @PIN_CONFIG_END: this is the last enumerator for pin configurations, if * you need to pass in custom configurations to the pin controller, use * PIN_CONFIG_END+1 as the base offset. @@ -117,6 +121,7 @@ enum pin_config_param { PIN_CONFIG_POWER_SOURCE, PIN_CONFIG_SLEEP_HARDWARE_STATE, PIN_CONFIG_SLEW_RATE, + PIN_CONFIG_SKEW_DELAY, PIN_CONFIG_END = 0x7F, PIN_CONFIG_MAX = 0xFF, }; -- cgit v1.2.3 From 60ad481f74a6d5ffb38e2c2ea325324e82081e7e Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Sat, 28 Oct 2017 15:37:19 +0200 Subject: pinctrl: gemini: Implement clock skew/delay config This enabled pin config on the Gemini driver and implements pin skew/delay so that the ethernet pins clocking can be properly configured. Acked-by: Hans Ulli Kroll Signed-off-by: Linus Walleij --- .../bindings/pinctrl/cortina,gemini-pinctrl.txt | 10 +- drivers/pinctrl/pinctrl-gemini.c | 178 ++++++++++++++++++++- 2 files changed, 182 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pinctrl/cortina,gemini-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/cortina,gemini-pinctrl.txt index 61466c58faae..d857b67fab72 100644 --- a/Documentation/devicetree/bindings/pinctrl/cortina,gemini-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/cortina,gemini-pinctrl.txt @@ -9,8 +9,14 @@ The pin controller node must be a subnode of the system controller node. Required properties: - compatible: "cortina,gemini-pinctrl" -Subnodes of the pin controller contain pin control multiplexing set-up. -Please refer to pinctrl-bindings.txt for generic pin multiplexing nodes. +Subnodes of the pin controller contain pin control multiplexing set-up +and pin configuration of individual pins. + +Please refer to pinctrl-bindings.txt for generic pin multiplexing nodes +and generic pin config nodes. + +Supported configurations: +- skew-delay is supported on the Ethernet pins Example: diff --git a/drivers/pinctrl/pinctrl-gemini.c b/drivers/pinctrl/pinctrl-gemini.c index 18fb5ff8a442..bd6133f06759 100644 --- a/drivers/pinctrl/pinctrl-gemini.c +++ b/drivers/pinctrl/pinctrl-gemini.c @@ -24,6 +24,19 @@ #define DRIVER_NAME "pinctrl-gemini" /** + * struct gemini_pin_conf - information about configuring a pin + * @pin: the pin number + * @reg: config register + * @mask: the bits affecting the configuration of the pin + */ +struct gemini_pin_conf { + unsigned int pin; + u32 reg; + u32 mask; +}; + +/** + * struct gemini_pmx - state holder for the gemini pin controller * @dev: a pointer back to containing device * @virtbase: the offset to the controller in virtual memory * @map: regmap to access registers @@ -31,6 +44,8 @@ * @is_3516: whether the SoC/package is the 3516 variant * @flash_pin: whether the flash pin (extended pins for parallel * flash) is set + * @confs: pin config information + * @nconfs: number of pin config information items */ struct gemini_pmx { struct device *dev; @@ -39,6 +54,8 @@ struct gemini_pmx { bool is_3512; bool is_3516; bool flash_pin; + const struct gemini_pin_conf *confs; + unsigned int nconfs; }; /** @@ -59,6 +76,13 @@ struct gemini_pin_group { u32 value; }; +/* Some straight-forward control registers */ +#define GLOBAL_WORD_ID 0x00 +#define GLOBAL_STATUS 0x04 +#define GLOBAL_STATUS_FLPIN BIT(20) +#define GLOBAL_GMAC_CTRL_SKEW 0x1c +#define GLOBAL_GMAC0_DATA_SKEW 0x20 +#define GLOBAL_GMAC1_DATA_SKEW 0x24 /* * Global Miscellaneous Control Register * This register controls all Gemini pad/pin multiplexing @@ -71,9 +95,6 @@ struct gemini_pin_group { * DISABLED again. So you select a flash configuration once, and then * you are stuck with it. */ -#define GLOBAL_WORD_ID 0x00 -#define GLOBAL_STATUS 0x04 -#define GLOBAL_STATUS_FLPIN BIT(20) #define GLOBAL_MISC_CTRL 0x30 #define TVC_CLK_PAD_ENABLE BIT(20) #define PCI_CLK_PAD_ENABLE BIT(17) @@ -1925,7 +1946,7 @@ static const struct pinctrl_ops gemini_pctrl_ops = { .get_group_name = gemini_get_group_name, .get_group_pins = gemini_get_group_pins, .pin_dbg_show = gemini_pin_dbg_show, - .dt_node_to_map = pinconf_generic_dt_node_to_map_group, + .dt_node_to_map = pinconf_generic_dt_node_to_map_all, .dt_free_map = pinconf_generic_dt_free_map, }; @@ -2203,10 +2224,155 @@ static const struct pinmux_ops gemini_pmx_ops = { .set_mux = gemini_pmx_set_mux, }; +#define GEMINI_CFGPIN(_n, _r, _lb, _hb) { \ + .pin = _n, \ + .reg = _r, \ + .mask = GENMASK(_hb, _lb) \ +} + +static const struct gemini_pin_conf gemini_confs_3512[] = { + GEMINI_CFGPIN(259, GLOBAL_GMAC_CTRL_SKEW, 0, 3), /* GMAC0 RXDV */ + GEMINI_CFGPIN(277, GLOBAL_GMAC_CTRL_SKEW, 4, 7), /* GMAC0 RXC */ + GEMINI_CFGPIN(241, GLOBAL_GMAC_CTRL_SKEW, 8, 11), /* GMAC0 TXEN */ + GEMINI_CFGPIN(312, GLOBAL_GMAC_CTRL_SKEW, 12, 15), /* GMAC0 TXC */ + GEMINI_CFGPIN(298, GLOBAL_GMAC_CTRL_SKEW, 16, 19), /* GMAC1 RXDV */ + GEMINI_CFGPIN(280, GLOBAL_GMAC_CTRL_SKEW, 20, 23), /* GMAC1 RXC */ + GEMINI_CFGPIN(316, GLOBAL_GMAC_CTRL_SKEW, 24, 27), /* GMAC1 TXEN */ + GEMINI_CFGPIN(243, GLOBAL_GMAC_CTRL_SKEW, 28, 31), /* GMAC1 TXC */ + GEMINI_CFGPIN(295, GLOBAL_GMAC0_DATA_SKEW, 0, 3), /* GMAC0 RXD0 */ + GEMINI_CFGPIN(313, GLOBAL_GMAC0_DATA_SKEW, 4, 7), /* GMAC0 RXD1 */ + GEMINI_CFGPIN(242, GLOBAL_GMAC0_DATA_SKEW, 8, 11), /* GMAC0 RXD2 */ + GEMINI_CFGPIN(260, GLOBAL_GMAC0_DATA_SKEW, 12, 15), /* GMAC0 RXD3 */ + GEMINI_CFGPIN(294, GLOBAL_GMAC0_DATA_SKEW, 16, 19), /* GMAC0 TXD0 */ + GEMINI_CFGPIN(276, GLOBAL_GMAC0_DATA_SKEW, 20, 23), /* GMAC0 TXD1 */ + GEMINI_CFGPIN(258, GLOBAL_GMAC0_DATA_SKEW, 24, 27), /* GMAC0 TXD2 */ + GEMINI_CFGPIN(240, GLOBAL_GMAC0_DATA_SKEW, 28, 31), /* GMAC0 TXD3 */ + GEMINI_CFGPIN(262, GLOBAL_GMAC1_DATA_SKEW, 0, 3), /* GMAC1 RXD0 */ + GEMINI_CFGPIN(244, GLOBAL_GMAC1_DATA_SKEW, 4, 7), /* GMAC1 RXD1 */ + GEMINI_CFGPIN(317, GLOBAL_GMAC1_DATA_SKEW, 8, 11), /* GMAC1 RXD2 */ + GEMINI_CFGPIN(299, GLOBAL_GMAC1_DATA_SKEW, 12, 15), /* GMAC1 RXD3 */ + GEMINI_CFGPIN(261, GLOBAL_GMAC1_DATA_SKEW, 16, 19), /* GMAC1 TXD0 */ + GEMINI_CFGPIN(279, GLOBAL_GMAC1_DATA_SKEW, 20, 23), /* GMAC1 TXD1 */ + GEMINI_CFGPIN(297, GLOBAL_GMAC1_DATA_SKEW, 24, 27), /* GMAC1 TXD2 */ + GEMINI_CFGPIN(315, GLOBAL_GMAC1_DATA_SKEW, 28, 31), /* GMAC1 TXD3 */ +}; + +static const struct gemini_pin_conf gemini_confs_3516[] = { + GEMINI_CFGPIN(347, GLOBAL_GMAC_CTRL_SKEW, 0, 3), /* GMAC0 RXDV */ + GEMINI_CFGPIN(386, GLOBAL_GMAC_CTRL_SKEW, 4, 7), /* GMAC0 RXC */ + GEMINI_CFGPIN(307, GLOBAL_GMAC_CTRL_SKEW, 8, 11), /* GMAC0 TXEN */ + GEMINI_CFGPIN(327, GLOBAL_GMAC_CTRL_SKEW, 12, 15), /* GMAC0 TXC */ + GEMINI_CFGPIN(309, GLOBAL_GMAC_CTRL_SKEW, 16, 19), /* GMAC1 RXDV */ + GEMINI_CFGPIN(390, GLOBAL_GMAC_CTRL_SKEW, 20, 23), /* GMAC1 RXC */ + GEMINI_CFGPIN(370, GLOBAL_GMAC_CTRL_SKEW, 24, 27), /* GMAC1 TXEN */ + GEMINI_CFGPIN(350, GLOBAL_GMAC_CTRL_SKEW, 28, 31), /* GMAC1 TXC */ + GEMINI_CFGPIN(367, GLOBAL_GMAC0_DATA_SKEW, 0, 3), /* GMAC0 RXD0 */ + GEMINI_CFGPIN(348, GLOBAL_GMAC0_DATA_SKEW, 4, 7), /* GMAC0 RXD1 */ + GEMINI_CFGPIN(387, GLOBAL_GMAC0_DATA_SKEW, 8, 11), /* GMAC0 RXD2 */ + GEMINI_CFGPIN(328, GLOBAL_GMAC0_DATA_SKEW, 12, 15), /* GMAC0 RXD3 */ + GEMINI_CFGPIN(306, GLOBAL_GMAC0_DATA_SKEW, 16, 19), /* GMAC0 TXD0 */ + GEMINI_CFGPIN(325, GLOBAL_GMAC0_DATA_SKEW, 20, 23), /* GMAC0 TXD1 */ + GEMINI_CFGPIN(346, GLOBAL_GMAC0_DATA_SKEW, 24, 27), /* GMAC0 TXD2 */ + GEMINI_CFGPIN(326, GLOBAL_GMAC0_DATA_SKEW, 28, 31), /* GMAC0 TXD3 */ + GEMINI_CFGPIN(391, GLOBAL_GMAC1_DATA_SKEW, 0, 3), /* GMAC1 RXD0 */ + GEMINI_CFGPIN(351, GLOBAL_GMAC1_DATA_SKEW, 4, 7), /* GMAC1 RXD1 */ + GEMINI_CFGPIN(310, GLOBAL_GMAC1_DATA_SKEW, 8, 11), /* GMAC1 RXD2 */ + GEMINI_CFGPIN(371, GLOBAL_GMAC1_DATA_SKEW, 12, 15), /* GMAC1 RXD3 */ + GEMINI_CFGPIN(329, GLOBAL_GMAC1_DATA_SKEW, 16, 19), /* GMAC1 TXD0 */ + GEMINI_CFGPIN(389, GLOBAL_GMAC1_DATA_SKEW, 20, 23), /* GMAC1 TXD1 */ + GEMINI_CFGPIN(369, GLOBAL_GMAC1_DATA_SKEW, 24, 27), /* GMAC1 TXD2 */ + GEMINI_CFGPIN(308, GLOBAL_GMAC1_DATA_SKEW, 28, 31), /* GMAC1 TXD3 */ +}; + +static const struct gemini_pin_conf *gemini_get_pin_conf(struct gemini_pmx *pmx, + unsigned int pin) +{ + const struct gemini_pin_conf *retconf; + int i; + + for (i = 0; i < pmx->nconfs; i++) { + retconf = &gemini_confs_3516[i]; + if (retconf->pin == pin) + return retconf; + } + return NULL; +} + +static int gemini_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin, + unsigned long *config) +{ + struct gemini_pmx *pmx = pinctrl_dev_get_drvdata(pctldev); + enum pin_config_param param = pinconf_to_config_param(*config); + const struct gemini_pin_conf *conf; + u32 val; + + switch (param) { + case PIN_CONFIG_SKEW_DELAY: + conf = gemini_get_pin_conf(pmx, pin); + if (!conf) + return -ENOTSUPP; + regmap_read(pmx->map, conf->reg, &val); + val &= conf->mask; + val >>= (ffs(conf->mask) - 1); + *config = pinconf_to_config_packed(PIN_CONFIG_SKEW_DELAY, val); + break; + default: + return -ENOTSUPP; + } + + return 0; +} + +static int gemini_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin, + unsigned long *configs, unsigned int num_configs) +{ + struct gemini_pmx *pmx = pinctrl_dev_get_drvdata(pctldev); + const struct gemini_pin_conf *conf; + enum pin_config_param param; + u32 arg; + int ret = 0; + int i; + + for (i = 0; i < num_configs; i++) { + param = pinconf_to_config_param(configs[i]); + arg = pinconf_to_config_argument(configs[i]); + + switch (param) { + case PIN_CONFIG_SKEW_DELAY: + if (arg > 0xf) + return -EINVAL; + conf = gemini_get_pin_conf(pmx, pin); + if (!conf) { + dev_err(pmx->dev, + "invalid pin for skew delay %d\n", pin); + return -ENOTSUPP; + } + arg <<= (ffs(conf->mask) - 1); + dev_dbg(pmx->dev, + "set pin %d to skew delay mask %08x, val %08x\n", + pin, conf->mask, arg); + regmap_update_bits(pmx->map, conf->reg, conf->mask, arg); + break; + default: + dev_err(pmx->dev, "Invalid config param %04x\n", param); + return -ENOTSUPP; + } + } + + return ret; +} + +static const struct pinconf_ops gemini_pinconf_ops = { + .pin_config_get = gemini_pinconf_get, + .pin_config_set = gemini_pinconf_set, + .is_generic = true, +}; + static struct pinctrl_desc gemini_pmx_desc = { .name = DRIVER_NAME, .pctlops = &gemini_pctrl_ops, .pmxops = &gemini_pmx_ops, + .confops = &gemini_pinconf_ops, .owner = THIS_MODULE, }; @@ -2249,11 +2415,15 @@ static int gemini_pmx_probe(struct platform_device *pdev) val &= 0xffff; if (val == 0x3512) { pmx->is_3512 = true; + pmx->confs = gemini_confs_3512; + pmx->nconfs = ARRAY_SIZE(gemini_confs_3512); gemini_pmx_desc.pins = gemini_3512_pins; gemini_pmx_desc.npins = ARRAY_SIZE(gemini_3512_pins); dev_info(dev, "detected 3512 chip variant\n"); } else if (val == 0x3516) { pmx->is_3516 = true; + pmx->confs = gemini_confs_3516; + pmx->nconfs = ARRAY_SIZE(gemini_confs_3516); gemini_pmx_desc.pins = gemini_3516_pins; gemini_pmx_desc.npins = ARRAY_SIZE(gemini_3516_pins); dev_info(dev, "detected 3516 chip variant\n"); -- cgit v1.2.3 From 8d6cfb14088e340acd56264f52a60c8f8f735854 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Thu, 2 Nov 2017 14:59:42 +0530 Subject: pinctrl: qcom: spmi-gpio: Add pmi8994 gpio support Update the binding and driver for pmi8994-gpios Signed-off-by: Rajendra Nayak Signed-off-by: Linus Walleij --- Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt | 2 ++ drivers/pinctrl/qcom/pinctrl-spmi-gpio.c | 1 + 2 files changed, 3 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt index 5b12c57e7f02..5c25fcb29fb5 100644 --- a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt +++ b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.txt @@ -15,6 +15,7 @@ PMIC's from Qualcomm. "qcom,pm8921-gpio" "qcom,pm8941-gpio" "qcom,pm8994-gpio" + "qcom,pmi8994-gpio" "qcom,pma8084-gpio" "qcom,pmi8994-gpio" @@ -85,6 +86,7 @@ to specify in a pin configuration subnode: gpio1-gpio44 for pm8921 gpio1-gpio36 for pm8941 gpio1-gpio22 for pm8994 + gpio1-gpio10 for pmi8994 gpio1-gpio22 for pma8084 gpio1-gpio10 for pmi8994 diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c index a0edaa85f22b..3e66e0d10010 100644 --- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c +++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c @@ -1037,6 +1037,7 @@ static const struct of_device_id pmic_gpio_of_match[] = { { .compatible = "qcom,pm8916-gpio" }, /* 4 GPIO's */ { .compatible = "qcom,pm8941-gpio" }, /* 36 GPIO's */ { .compatible = "qcom,pm8994-gpio" }, /* 22 GPIO's */ + { .compatible = "qcom,pmi8994-gpio" }, /* 10 GPIO's */ { .compatible = "qcom,pma8084-gpio" }, /* 22 GPIO's */ { .compatible = "qcom,spmi-gpio" }, /* Generic */ { }, -- cgit v1.2.3 From f0fbe7bce733561b76a5b55c5f4625888acd3792 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 7 Nov 2017 19:15:47 +0100 Subject: gpio: Move irqdomain into struct gpio_irq_chip In order to consolidate the multiple ways to associate an IRQ chip with a GPIO chip, move more fields into the new struct gpio_irq_chip. Signed-off-by: Thierry Reding Acked-by: Grygorii Strashko Signed-off-by: Linus Walleij --- Documentation/gpio/driver.txt | 2 +- drivers/bcma/driver_gpio.c | 2 +- drivers/gpio/gpio-104-dio-48e.c | 2 +- drivers/gpio/gpio-104-idi-48.c | 2 +- drivers/gpio/gpio-104-idio-16.c | 2 +- drivers/gpio/gpio-adnp.c | 2 +- drivers/gpio/gpio-altera.c | 4 ++-- drivers/gpio/gpio-aspeed.c | 2 +- drivers/gpio/gpio-ath79.c | 2 +- drivers/gpio/gpio-crystalcove.c | 2 +- drivers/gpio/gpio-dln2.c | 2 +- drivers/gpio/gpio-ftgpio010.c | 2 +- drivers/gpio/gpio-ingenic.c | 2 +- drivers/gpio/gpio-intel-mid.c | 2 +- drivers/gpio/gpio-lynxpoint.c | 2 +- drivers/gpio/gpio-max732x.c | 2 +- drivers/gpio/gpio-merrifield.c | 2 +- drivers/gpio/gpio-omap.c | 2 +- drivers/gpio/gpio-pca953x.c | 2 +- drivers/gpio/gpio-pcf857x.c | 2 +- drivers/gpio/gpio-pci-idio-16.c | 2 +- drivers/gpio/gpio-pl061.c | 2 +- drivers/gpio/gpio-rcar.c | 2 +- drivers/gpio/gpio-reg.c | 4 ++-- drivers/gpio/gpio-stmpe.c | 2 +- drivers/gpio/gpio-tc3589x.c | 2 +- drivers/gpio/gpio-vf610.c | 2 +- drivers/gpio/gpio-wcove.c | 2 +- drivers/gpio/gpio-ws16c48.c | 2 +- drivers/gpio/gpio-xgene-sb.c | 2 +- drivers/gpio/gpio-xlp.c | 2 +- drivers/gpio/gpio-zx.c | 2 +- drivers/gpio/gpio-zynq.c | 2 +- drivers/gpio/gpiolib.c | 22 ++++++++++++---------- drivers/pinctrl/bcm/pinctrl-bcm2835.c | 4 ++-- drivers/pinctrl/bcm/pinctrl-iproc-gpio.c | 2 +- drivers/pinctrl/intel/pinctrl-baytrail.c | 2 +- drivers/pinctrl/intel/pinctrl-cherryview.c | 2 +- drivers/pinctrl/intel/pinctrl-intel.c | 2 +- drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 2 +- drivers/pinctrl/nomadik/pinctrl-nomadik.c | 4 ++-- drivers/pinctrl/pinctrl-amd.c | 2 +- drivers/pinctrl/pinctrl-at91.c | 2 +- drivers/pinctrl/pinctrl-coh901.c | 2 +- drivers/pinctrl/pinctrl-mcp23s08.c | 2 +- drivers/pinctrl/pinctrl-oxnas.c | 2 +- drivers/pinctrl/pinctrl-pic32.c | 2 +- drivers/pinctrl/pinctrl-pistachio.c | 2 +- drivers/pinctrl/pinctrl-st.c | 2 +- drivers/pinctrl/pinctrl-sx150x.c | 2 +- drivers/pinctrl/qcom/pinctrl-msm.c | 2 +- drivers/pinctrl/sirf/pinctrl-atlas7.c | 2 +- drivers/pinctrl/sirf/pinctrl-sirf.c | 2 +- drivers/pinctrl/spear/pinctrl-plgpio.c | 2 +- drivers/platform/x86/intel_int0002_vgpio.c | 2 +- include/linux/gpio/driver.h | 11 ++++++++--- 56 files changed, 78 insertions(+), 71 deletions(-) (limited to 'Documentation') diff --git a/Documentation/gpio/driver.txt b/Documentation/gpio/driver.txt index fc1d2f83564d..dcf6af1d9e56 100644 --- a/Documentation/gpio/driver.txt +++ b/Documentation/gpio/driver.txt @@ -254,7 +254,7 @@ GPIO irqchips usually fall in one of two categories: static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank) unsigned long wa_lock_flags; raw_spin_lock_irqsave(&bank->wa_lock, wa_lock_flags); - generic_handle_irq(irq_find_mapping(bank->chip.irqdomain, bit)); + generic_handle_irq(irq_find_mapping(bank->chip.irq.domain, bit)); raw_spin_unlock_irqrestore(&bank->wa_lock, wa_lock_flags); * GENERIC CHAINED GPIO irqchips: these are the same as "CHAINED GPIO irqchips", diff --git a/drivers/bcma/driver_gpio.c b/drivers/bcma/driver_gpio.c index 982d5781d3ce..2c0ffb77d738 100644 --- a/drivers/bcma/driver_gpio.c +++ b/drivers/bcma/driver_gpio.c @@ -113,7 +113,7 @@ static irqreturn_t bcma_gpio_irq_handler(int irq, void *dev_id) return IRQ_NONE; for_each_set_bit(gpio, &irqs, gc->ngpio) - generic_handle_irq(irq_find_mapping(gc->irqdomain, gpio)); + generic_handle_irq(irq_find_mapping(gc->irq.domain, gpio)); bcma_chipco_gpio_polarity(cc, irqs, val & irqs); return IRQ_HANDLED; diff --git a/drivers/gpio/gpio-104-dio-48e.c b/drivers/gpio/gpio-104-dio-48e.c index 598e209efa2d..bab3b94c5cbc 100644 --- a/drivers/gpio/gpio-104-dio-48e.c +++ b/drivers/gpio/gpio-104-dio-48e.c @@ -326,7 +326,7 @@ static irqreturn_t dio48e_irq_handler(int irq, void *dev_id) unsigned long gpio; for_each_set_bit(gpio, &irq_mask, 2) - generic_handle_irq(irq_find_mapping(chip->irqdomain, + generic_handle_irq(irq_find_mapping(chip->irq.domain, 19 + gpio*24)); raw_spin_lock(&dio48egpio->lock); diff --git a/drivers/gpio/gpio-104-idi-48.c b/drivers/gpio/gpio-104-idi-48.c index 51f046e29ff7..add859d59766 100644 --- a/drivers/gpio/gpio-104-idi-48.c +++ b/drivers/gpio/gpio-104-idi-48.c @@ -209,7 +209,7 @@ static irqreturn_t idi_48_irq_handler(int irq, void *dev_id) for_each_set_bit(bit_num, &irq_mask, 8) { gpio = bit_num + boundary * 8; - generic_handle_irq(irq_find_mapping(chip->irqdomain, + generic_handle_irq(irq_find_mapping(chip->irq.domain, gpio)); } } diff --git a/drivers/gpio/gpio-104-idio-16.c b/drivers/gpio/gpio-104-idio-16.c index ec2ce34ff473..2f16638a0589 100644 --- a/drivers/gpio/gpio-104-idio-16.c +++ b/drivers/gpio/gpio-104-idio-16.c @@ -199,7 +199,7 @@ static irqreturn_t idio_16_irq_handler(int irq, void *dev_id) int gpio; for_each_set_bit(gpio, &idio16gpio->irq_mask, chip->ngpio) - generic_handle_irq(irq_find_mapping(chip->irqdomain, gpio)); + generic_handle_irq(irq_find_mapping(chip->irq.domain, gpio)); raw_spin_lock(&idio16gpio->lock); diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c index 7f475eef3faa..44c09904daa6 100644 --- a/drivers/gpio/gpio-adnp.c +++ b/drivers/gpio/gpio-adnp.c @@ -320,7 +320,7 @@ static irqreturn_t adnp_irq(int irq, void *data) for_each_set_bit(bit, &pending, 8) { unsigned int child_irq; - child_irq = irq_find_mapping(adnp->gpio.irqdomain, + child_irq = irq_find_mapping(adnp->gpio.irq.domain, base + bit); handle_nested_irq(child_irq); } diff --git a/drivers/gpio/gpio-altera.c b/drivers/gpio/gpio-altera.c index ccc02ed65b3c..8e76d390e653 100644 --- a/drivers/gpio/gpio-altera.c +++ b/drivers/gpio/gpio-altera.c @@ -211,7 +211,7 @@ static void altera_gpio_irq_edge_handler(struct irq_desc *desc) altera_gc = gpiochip_get_data(irq_desc_get_handler_data(desc)); chip = irq_desc_get_chip(desc); mm_gc = &altera_gc->mmchip; - irqdomain = altera_gc->mmchip.gc.irqdomain; + irqdomain = altera_gc->mmchip.gc.irq.domain; chained_irq_enter(chip, desc); @@ -239,7 +239,7 @@ static void altera_gpio_irq_leveL_high_handler(struct irq_desc *desc) altera_gc = gpiochip_get_data(irq_desc_get_handler_data(desc)); chip = irq_desc_get_chip(desc); mm_gc = &altera_gc->mmchip; - irqdomain = altera_gc->mmchip.gc.irqdomain; + irqdomain = altera_gc->mmchip.gc.irq.domain; chained_irq_enter(chip, desc); diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c index 00dc1c020198..2bfce0ab7326 100644 --- a/drivers/gpio/gpio-aspeed.c +++ b/drivers/gpio/gpio-aspeed.c @@ -469,7 +469,7 @@ static void aspeed_gpio_irq_handler(struct irq_desc *desc) reg = ioread32(bank_irq_reg(data, bank, GPIO_IRQ_STATUS)); for_each_set_bit(p, ®, 32) { - girq = irq_find_mapping(gc->irqdomain, i * 32 + p); + girq = irq_find_mapping(gc->irq.domain, i * 32 + p); generic_handle_irq(girq); } diff --git a/drivers/gpio/gpio-ath79.c b/drivers/gpio/gpio-ath79.c index 02e56e0c793a..5fad89dfab7e 100644 --- a/drivers/gpio/gpio-ath79.c +++ b/drivers/gpio/gpio-ath79.c @@ -209,7 +209,7 @@ static void ath79_gpio_irq_handler(struct irq_desc *desc) if (pending) { for_each_set_bit(irq, &pending, gc->ngpio) generic_handle_irq( - irq_linear_revmap(gc->irqdomain, irq)); + irq_linear_revmap(gc->irq.domain, irq)); } chained_irq_exit(irqchip, desc); diff --git a/drivers/gpio/gpio-crystalcove.c b/drivers/gpio/gpio-crystalcove.c index e60156ec0c18..b6f0f729656c 100644 --- a/drivers/gpio/gpio-crystalcove.c +++ b/drivers/gpio/gpio-crystalcove.c @@ -295,7 +295,7 @@ static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data) for (gpio = 0; gpio < CRYSTALCOVE_GPIO_NUM; gpio++) { if (pending & BIT(gpio)) { - virq = irq_find_mapping(cg->chip.irqdomain, gpio); + virq = irq_find_mapping(cg->chip.irq.domain, gpio); handle_nested_irq(virq); } } diff --git a/drivers/gpio/gpio-dln2.c b/drivers/gpio/gpio-dln2.c index aecb847166f5..1dada68b9a27 100644 --- a/drivers/gpio/gpio-dln2.c +++ b/drivers/gpio/gpio-dln2.c @@ -420,7 +420,7 @@ static void dln2_gpio_event(struct platform_device *pdev, u16 echo, return; } - irq = irq_find_mapping(dln2->gpio.irqdomain, pin); + irq = irq_find_mapping(dln2->gpio.irq.domain, pin); if (!irq) { dev_err(dln2->gpio.parent, "pin %d not mapped to IRQ\n", pin); return; diff --git a/drivers/gpio/gpio-ftgpio010.c b/drivers/gpio/gpio-ftgpio010.c index e9386f8b67f5..b7896bae83ca 100644 --- a/drivers/gpio/gpio-ftgpio010.c +++ b/drivers/gpio/gpio-ftgpio010.c @@ -149,7 +149,7 @@ static void ftgpio_gpio_irq_handler(struct irq_desc *desc) stat = readl(g->base + GPIO_INT_STAT); if (stat) for_each_set_bit(offset, &stat, gc->ngpio) - generic_handle_irq(irq_find_mapping(gc->irqdomain, + generic_handle_irq(irq_find_mapping(gc->irq.domain, offset)); chained_irq_exit(irqchip, desc); diff --git a/drivers/gpio/gpio-ingenic.c b/drivers/gpio/gpio-ingenic.c index 254780730b95..15fb2bc796a8 100644 --- a/drivers/gpio/gpio-ingenic.c +++ b/drivers/gpio/gpio-ingenic.c @@ -242,7 +242,7 @@ static void ingenic_gpio_irq_handler(struct irq_desc *desc) flag = gpio_ingenic_read_reg(jzgc, JZ4740_GPIO_FLAG); for_each_set_bit(i, &flag, 32) - generic_handle_irq(irq_linear_revmap(gc->irqdomain, i)); + generic_handle_irq(irq_linear_revmap(gc->irq.domain, i)); chained_irq_exit(irq_chip, desc); } diff --git a/drivers/gpio/gpio-intel-mid.c b/drivers/gpio/gpio-intel-mid.c index b76ecee82c3f..629575ea46a0 100644 --- a/drivers/gpio/gpio-intel-mid.c +++ b/drivers/gpio/gpio-intel-mid.c @@ -295,7 +295,7 @@ static void intel_mid_irq_handler(struct irq_desc *desc) mask = BIT(gpio); /* Clear before handling so we can't lose an edge */ writel(mask, gedr); - generic_handle_irq(irq_find_mapping(gc->irqdomain, + generic_handle_irq(irq_find_mapping(gc->irq.domain, base + gpio)); } } diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c index fbd393b46ce0..1e557b10d73e 100644 --- a/drivers/gpio/gpio-lynxpoint.c +++ b/drivers/gpio/gpio-lynxpoint.c @@ -255,7 +255,7 @@ static void lp_gpio_irq_handler(struct irq_desc *desc) mask = BIT(pin); /* Clear before handling so we don't lose an edge */ outl(mask, reg); - irq = irq_find_mapping(lg->chip.irqdomain, base + pin); + irq = irq_find_mapping(lg->chip.irq.domain, base + pin); generic_handle_irq(irq); } } diff --git a/drivers/gpio/gpio-max732x.c b/drivers/gpio/gpio-max732x.c index 7f4d26ce5f23..c04fae1ba32a 100644 --- a/drivers/gpio/gpio-max732x.c +++ b/drivers/gpio/gpio-max732x.c @@ -486,7 +486,7 @@ static irqreturn_t max732x_irq_handler(int irq, void *devid) do { level = __ffs(pending); - handle_nested_irq(irq_find_mapping(chip->gpio_chip.irqdomain, + handle_nested_irq(irq_find_mapping(chip->gpio_chip.irq.domain, level)); pending &= ~(1 << level); diff --git a/drivers/gpio/gpio-merrifield.c b/drivers/gpio/gpio-merrifield.c index ec8560298805..dd67a31ac337 100644 --- a/drivers/gpio/gpio-merrifield.c +++ b/drivers/gpio/gpio-merrifield.c @@ -357,7 +357,7 @@ static void mrfld_irq_handler(struct irq_desc *desc) for_each_set_bit(gpio, &pending, 32) { unsigned int irq; - irq = irq_find_mapping(gc->irqdomain, base + gpio); + irq = irq_find_mapping(gc->irq.domain, base + gpio); generic_handle_irq(irq); } } diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index dbf869fb63ce..ce27d6a586bf 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -733,7 +733,7 @@ static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank) raw_spin_lock_irqsave(&bank->wa_lock, wa_lock_flags); - generic_handle_irq(irq_find_mapping(bank->chip.irqdomain, + generic_handle_irq(irq_find_mapping(bank->chip.irq.domain, bit)); raw_spin_unlock_irqrestore(&bank->wa_lock, diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index 1b9dbf691ae7..babb7bd2ba59 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -608,7 +608,7 @@ static irqreturn_t pca953x_irq_handler(int irq, void *devid) for (i = 0; i < NBANK(chip); i++) { while (pending[i]) { level = __ffs(pending[i]); - handle_nested_irq(irq_find_mapping(chip->gpio_chip.irqdomain, + handle_nested_irq(irq_find_mapping(chip->gpio_chip.irq.domain, level + (BANK_SZ * i))); pending[i] &= ~(1 << level); nhandled++; diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c index a4fd78b9c0e4..38fbb420c6cd 100644 --- a/drivers/gpio/gpio-pcf857x.c +++ b/drivers/gpio/gpio-pcf857x.c @@ -196,7 +196,7 @@ static irqreturn_t pcf857x_irq(int irq, void *data) mutex_unlock(&gpio->lock); for_each_set_bit(i, &change, gpio->chip.ngpio) - handle_nested_irq(irq_find_mapping(gpio->chip.irqdomain, i)); + handle_nested_irq(irq_find_mapping(gpio->chip.irq.domain, i)); return IRQ_HANDLED; } diff --git a/drivers/gpio/gpio-pci-idio-16.c b/drivers/gpio/gpio-pci-idio-16.c index 7de4f6a2cb49..57d1b7fbf07b 100644 --- a/drivers/gpio/gpio-pci-idio-16.c +++ b/drivers/gpio/gpio-pci-idio-16.c @@ -240,7 +240,7 @@ static irqreturn_t idio_16_irq_handler(int irq, void *dev_id) return IRQ_NONE; for_each_set_bit(gpio, &idio16gpio->irq_mask, chip->ngpio) - generic_handle_irq(irq_find_mapping(chip->irqdomain, gpio)); + generic_handle_irq(irq_find_mapping(chip->irq.domain, gpio)); raw_spin_lock(&idio16gpio->lock); diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 6aaaab79c205..b70974cb9ef1 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -221,7 +221,7 @@ static void pl061_irq_handler(struct irq_desc *desc) pending = readb(pl061->base + GPIOMIS); if (pending) { for_each_set_bit(offset, &pending, PL061_GPIO_NR) - generic_handle_irq(irq_find_mapping(gc->irqdomain, + generic_handle_irq(irq_find_mapping(gc->irq.domain, offset)); } diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c index ddcff4f543bc..0ea998a3e357 100644 --- a/drivers/gpio/gpio-rcar.c +++ b/drivers/gpio/gpio-rcar.c @@ -207,7 +207,7 @@ static irqreturn_t gpio_rcar_irq_handler(int irq, void *dev_id) gpio_rcar_read(p, INTMSK))) { offset = __ffs(pending); gpio_rcar_write(p, INTCLR, BIT(offset)); - generic_handle_irq(irq_find_mapping(p->gpio_chip.irqdomain, + generic_handle_irq(irq_find_mapping(p->gpio_chip.irq.domain, offset)); irqs_handled++; } diff --git a/drivers/gpio/gpio-reg.c b/drivers/gpio/gpio-reg.c index e85903eddc68..23e771dba4c1 100644 --- a/drivers/gpio/gpio-reg.c +++ b/drivers/gpio/gpio-reg.c @@ -103,8 +103,8 @@ static int gpio_reg_to_irq(struct gpio_chip *gc, unsigned offset) struct gpio_reg *r = to_gpio_reg(gc); int irq = r->irqs[offset]; - if (irq >= 0 && r->irqdomain) - irq = irq_find_mapping(r->irqdomain, irq); + if (irq >= 0 && r->irq.domain) + irq = irq_find_mapping(r->irq.domain, irq); return irq; } diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c index 001a89db5161..18d8bef76d85 100644 --- a/drivers/gpio/gpio-stmpe.c +++ b/drivers/gpio/gpio-stmpe.c @@ -397,7 +397,7 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev) while (stat) { int bit = __ffs(stat); int line = bank * 8 + bit; - int child_irq = irq_find_mapping(stmpe_gpio->chip.irqdomain, + int child_irq = irq_find_mapping(stmpe_gpio->chip.irq.domain, line); handle_nested_irq(child_irq); diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c index 433b45ef332e..91a8ef8e7f3f 100644 --- a/drivers/gpio/gpio-tc3589x.c +++ b/drivers/gpio/gpio-tc3589x.c @@ -268,7 +268,7 @@ static irqreturn_t tc3589x_gpio_irq(int irq, void *dev) while (stat) { int bit = __ffs(stat); int line = i * 8 + bit; - int irq = irq_find_mapping(tc3589x_gpio->chip.irqdomain, + int irq = irq_find_mapping(tc3589x_gpio->chip.irq.domain, line); handle_nested_irq(irq); diff --git a/drivers/gpio/gpio-vf610.c b/drivers/gpio/gpio-vf610.c index cbe9e06861de..4610cc2938ad 100644 --- a/drivers/gpio/gpio-vf610.c +++ b/drivers/gpio/gpio-vf610.c @@ -160,7 +160,7 @@ static void vf610_gpio_irq_handler(struct irq_desc *desc) for_each_set_bit(pin, &irq_isfr, VF610_GPIO_PER_PORT) { vf610_gpio_writel(BIT(pin), port->base + PORT_ISFR); - generic_handle_irq(irq_find_mapping(port->gc.irqdomain, pin)); + generic_handle_irq(irq_find_mapping(port->gc.irq.domain, pin)); } chained_irq_exit(chip, desc); diff --git a/drivers/gpio/gpio-wcove.c b/drivers/gpio/gpio-wcove.c index 85341eab795d..dde7c6aecbb5 100644 --- a/drivers/gpio/gpio-wcove.c +++ b/drivers/gpio/gpio-wcove.c @@ -350,7 +350,7 @@ static irqreturn_t wcove_gpio_irq_handler(int irq, void *data) offset = (gpio > GROUP0_NR_IRQS) ? 1 : 0; mask = (offset == 1) ? BIT(gpio - GROUP0_NR_IRQS) : BIT(gpio); - virq = irq_find_mapping(wg->chip.irqdomain, gpio); + virq = irq_find_mapping(wg->chip.irq.domain, gpio); handle_nested_irq(virq); regmap_update_bits(wg->regmap, IRQ_STATUS_BASE + offset, mask, mask); diff --git a/drivers/gpio/gpio-ws16c48.c b/drivers/gpio/gpio-ws16c48.c index 5037974ac063..746648244bf3 100644 --- a/drivers/gpio/gpio-ws16c48.c +++ b/drivers/gpio/gpio-ws16c48.c @@ -332,7 +332,7 @@ static irqreturn_t ws16c48_irq_handler(int irq, void *dev_id) int_id = inb(ws16c48gpio->base + 8 + port); for_each_set_bit(gpio, &int_id, 8) generic_handle_irq(irq_find_mapping( - chip->irqdomain, gpio + 8*port)); + chip->irq.domain, gpio + 8*port)); } int_pending = inb(ws16c48gpio->base + 6) & 0x7; diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c index 82c3ee6da66a..4f2623c2393e 100644 --- a/drivers/gpio/gpio-xgene-sb.c +++ b/drivers/gpio/gpio-xgene-sb.c @@ -287,7 +287,7 @@ static int xgene_gpio_sb_probe(struct platform_device *pdev) if (!priv->irq_domain) return -ENODEV; - priv->gc.irqdomain = priv->irq_domain; + priv->gc.irq.domain = priv->irq_domain; ret = devm_gpiochip_add_data(&pdev->dev, &priv->gc, priv); if (ret) { diff --git a/drivers/gpio/gpio-xlp.c b/drivers/gpio/gpio-xlp.c index d857e1d8e731..e74bd43a6974 100644 --- a/drivers/gpio/gpio-xlp.c +++ b/drivers/gpio/gpio-xlp.c @@ -225,7 +225,7 @@ static void xlp_gpio_generic_handler(struct irq_desc *desc) if (gpio_stat & BIT(gpio % XLP_GPIO_REGSZ)) generic_handle_irq(irq_find_mapping( - priv->chip.irqdomain, gpio)); + priv->chip.irq.domain, gpio)); } chained_irq_exit(irqchip, desc); } diff --git a/drivers/gpio/gpio-zx.c b/drivers/gpio/gpio-zx.c index be3a87da8438..5eacad9b2692 100644 --- a/drivers/gpio/gpio-zx.c +++ b/drivers/gpio/gpio-zx.c @@ -170,7 +170,7 @@ static void zx_irq_handler(struct irq_desc *desc) writew_relaxed(pending, chip->base + ZX_GPIO_IC); if (pending) { for_each_set_bit(offset, &pending, ZX_GPIO_NR) - generic_handle_irq(irq_find_mapping(gc->irqdomain, + generic_handle_irq(irq_find_mapping(gc->irq.domain, offset)); } diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c index b3cc948a2d8b..75ee877e5cd5 100644 --- a/drivers/gpio/gpio-zynq.c +++ b/drivers/gpio/gpio-zynq.c @@ -562,7 +562,7 @@ static void zynq_gpio_handle_bank_irq(struct zynq_gpio *gpio, unsigned long pending) { unsigned int bank_offset = gpio->p_data->bank_min[bank_num]; - struct irq_domain *irqdomain = gpio->chip.irqdomain; + struct irq_domain *irqdomain = gpio->chip.irq.domain; int offset; if (!pending) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index d3d0b3134ba3..9ee75a45ba37 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1550,7 +1550,7 @@ static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip, { unsigned int offset; - if (!gpiochip->irqdomain) { + if (!gpiochip->irq.domain) { chip_err(gpiochip, "called %s before setting up irqchip\n", __func__); return; @@ -1577,7 +1577,7 @@ static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip, for (offset = 0; offset < gpiochip->ngpio; offset++) { if (!gpiochip_irqchip_irq_valid(gpiochip, offset)) continue; - irq_set_parent(irq_find_mapping(gpiochip->irqdomain, offset), + irq_set_parent(irq_find_mapping(gpiochip->irq.domain, offset), parent_irq); } } @@ -1708,7 +1708,7 @@ static int gpiochip_to_irq(struct gpio_chip *chip, unsigned offset) { if (!gpiochip_irqchip_irq_valid(chip, offset)) return -ENXIO; - return irq_create_mapping(chip->irqdomain, offset); + return irq_create_mapping(chip->irq.domain, offset); } /** @@ -1719,7 +1719,7 @@ static int gpiochip_to_irq(struct gpio_chip *chip, unsigned offset) */ static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip) { - unsigned int offset; + unsigned int offset, irq; acpi_gpiochip_free_interrupts(gpiochip); @@ -1729,14 +1729,16 @@ static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip) } /* Remove all IRQ mappings and delete the domain */ - if (gpiochip->irqdomain) { + if (gpiochip->irq.domain) { for (offset = 0; offset < gpiochip->ngpio; offset++) { if (!gpiochip_irqchip_irq_valid(gpiochip, offset)) continue; - irq_dispose_mapping( - irq_find_mapping(gpiochip->irqdomain, offset)); + + irq = irq_find_mapping(gpiochip->irq.domain, offset); + irq_dispose_mapping(irq); } - irq_domain_remove(gpiochip->irqdomain); + + irq_domain_remove(gpiochip->irq.domain); } if (gpiochip->irq.chip) { @@ -1822,10 +1824,10 @@ int gpiochip_irqchip_add_key(struct gpio_chip *gpiochip, gpiochip->irq_default_type = type; gpiochip->to_irq = gpiochip_to_irq; gpiochip->lock_key = lock_key; - gpiochip->irqdomain = irq_domain_add_simple(of_node, + gpiochip->irq.domain = irq_domain_add_simple(of_node, gpiochip->ngpio, first_irq, &gpiochip_domain_ops, gpiochip); - if (!gpiochip->irqdomain) { + if (!gpiochip->irq.domain) { gpiochip->irq.chip = NULL; return -EINVAL; } diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c index 0944310225db..fb85ab3cf662 100644 --- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c +++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c @@ -383,7 +383,7 @@ static void bcm2835_gpio_irq_handle_bank(struct bcm2835_pinctrl *pc, /* FIXME: no clue why the code looks up the type here */ type = pc->irq_type[gpio]; - generic_handle_irq(irq_linear_revmap(pc->gpio_chip.irqdomain, + generic_handle_irq(irq_linear_revmap(pc->gpio_chip.irq.irqdomain, gpio)); } } @@ -665,7 +665,7 @@ static void bcm2835_pctl_pin_dbg_show(struct pinctrl_dev *pctldev, enum bcm2835_fsel fsel = bcm2835_pinctrl_fsel_get(pc, offset); const char *fname = bcm2835_functions[fsel]; int value = bcm2835_gpio_get_bit(pc, GPLEV0, offset); - int irq = irq_find_mapping(chip->irqdomain, offset); + int irq = irq_find_mapping(chip->irq.domain, offset); seq_printf(s, "function %s in %s; irq %d (%s)", fname, value ? "hi" : "lo", diff --git a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c index 85a8c97d9dfe..b93f62dc8733 100644 --- a/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c +++ b/drivers/pinctrl/bcm/pinctrl-iproc-gpio.c @@ -172,7 +172,7 @@ static void iproc_gpio_irq_handler(struct irq_desc *desc) for_each_set_bit(bit, &val, NGPIOS_PER_BANK) { unsigned pin = NGPIOS_PER_BANK * i + bit; - int child_irq = irq_find_mapping(gc->irqdomain, pin); + int child_irq = irq_find_mapping(gc->irq.domain, pin); /* * Clear the interrupt before invoking the diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c index 0f3a02495aeb..5897981e5ed3 100644 --- a/drivers/pinctrl/intel/pinctrl-baytrail.c +++ b/drivers/pinctrl/intel/pinctrl-baytrail.c @@ -1627,7 +1627,7 @@ static void byt_gpio_irq_handler(struct irq_desc *desc) pending = readl(reg); raw_spin_unlock(&vg->lock); for_each_set_bit(pin, &pending, 32) { - virq = irq_find_mapping(vg->chip.irqdomain, base + pin); + virq = irq_find_mapping(vg->chip.irq.domain, base + pin); generic_handle_irq(virq); } } diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index 04e929fd0ffe..1cd7043edbc1 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -1523,7 +1523,7 @@ static void chv_gpio_irq_handler(struct irq_desc *desc) unsigned irq, offset; offset = pctrl->intr_lines[intr_line]; - irq = irq_find_mapping(gc->irqdomain, offset); + irq = irq_find_mapping(gc->irq.domain, offset); generic_handle_irq(irq); } diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index 71df0f70b61f..ffda27bfd133 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -1005,7 +1005,7 @@ static irqreturn_t intel_gpio_community_irq_handler(struct intel_pinctrl *pctrl, if (padno >= community->npins) break; - irq = irq_find_mapping(gc->irqdomain, + irq = irq_find_mapping(gc->irq.domain, community->pin_base + padno); generic_handle_irq(irq); diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c index e800d55c340b..d754a9b10e19 100644 --- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c +++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c @@ -592,7 +592,7 @@ static void armada_37xx_irq_handler(struct irq_desc *desc) struct gpio_chip *gc = irq_desc_get_handler_data(desc); struct irq_chip *chip = irq_desc_get_chip(desc); struct armada_37xx_pinctrl *info = gpiochip_get_data(gc); - struct irq_domain *d = gc->irqdomain; + struct irq_domain *d = gc->irq.domain; int i; chained_irq_enter(chip, desc); diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c index a53f1a9b1ed2..f0e7a8c114b2 100644 --- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c +++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c @@ -413,7 +413,7 @@ nmk_gpio_disable_lazy_irq(struct nmk_gpio_chip *nmk_chip, unsigned offset) u32 falling = nmk_chip->fimsc & BIT(offset); u32 rising = nmk_chip->rimsc & BIT(offset); int gpio = nmk_chip->chip.base + offset; - int irq = irq_find_mapping(nmk_chip->chip.irqdomain, offset); + int irq = irq_find_mapping(nmk_chip->chip.irq.domain, offset); struct irq_data *d = irq_get_irq_data(irq); if (!rising && !falling) @@ -815,7 +815,7 @@ static void __nmk_gpio_irq_handler(struct irq_desc *desc, u32 status) while (status) { int bit = __ffs(status); - generic_handle_irq(irq_find_mapping(chip->irqdomain, bit)); + generic_handle_irq(irq_find_mapping(chip->irq.domain, bit)); status &= ~BIT(bit); } diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index 3f6b34febbf1..06362bf84a5b 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -532,7 +532,7 @@ static irqreturn_t amd_gpio_irq_handler(int irq, void *dev_id) regval = readl(regs + i); if (!(regval & PIN_IRQ_PENDING)) continue; - irq = irq_find_mapping(gc->irqdomain, irqnr + i); + irq = irq_find_mapping(gc->irq.domain, irqnr + i); generic_handle_irq(irq); /* Clear interrupt */ writel(regval, regs + i); diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index 569bc28cb909..03492e3c09fa 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -1603,7 +1603,7 @@ static void gpio_irq_handler(struct irq_desc *desc) for_each_set_bit(n, &isr, BITS_PER_LONG) { generic_handle_irq(irq_find_mapping( - gpio_chip->irqdomain, n)); + gpio_chip->irq.domain, n)); } } chained_irq_exit(chip, desc); diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c index ac155e7d3412..7939b178c6ae 100644 --- a/drivers/pinctrl/pinctrl-coh901.c +++ b/drivers/pinctrl/pinctrl-coh901.c @@ -517,7 +517,7 @@ static void u300_gpio_irq_handler(struct irq_desc *desc) for_each_set_bit(irqoffset, &val, U300_GPIO_PINS_PER_PORT) { int offset = pinoffset + irqoffset; - int pin_irq = irq_find_mapping(chip->irqdomain, offset); + int pin_irq = irq_find_mapping(chip->irq.domain, offset); dev_dbg(gpio->dev, "GPIO IRQ %d on pin %d\n", pin_irq, offset); diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c b/drivers/pinctrl/pinctrl-mcp23s08.c index 3e40d4245512..db19a2f2f575 100644 --- a/drivers/pinctrl/pinctrl-mcp23s08.c +++ b/drivers/pinctrl/pinctrl-mcp23s08.c @@ -537,7 +537,7 @@ static irqreturn_t mcp23s08_irq(int irq, void *data) ((gpio_bit_changed || intcap_changed) && (BIT(i) & mcp->irq_fall) && !gpio_set) || defval_changed) { - child_irq = irq_find_mapping(mcp->chip.irqdomain, i); + child_irq = irq_find_mapping(mcp->chip.irq.domain, i); handle_nested_irq(child_irq); } } diff --git a/drivers/pinctrl/pinctrl-oxnas.c b/drivers/pinctrl/pinctrl-oxnas.c index 494ec9a7573a..53ec22a51f5c 100644 --- a/drivers/pinctrl/pinctrl-oxnas.c +++ b/drivers/pinctrl/pinctrl-oxnas.c @@ -1064,7 +1064,7 @@ static void oxnas_gpio_irq_handler(struct irq_desc *desc) stat = readl(bank->reg_base + IRQ_PENDING); for_each_set_bit(pin, &stat, BITS_PER_LONG) - generic_handle_irq(irq_linear_revmap(gc->irqdomain, pin)); + generic_handle_irq(irq_linear_revmap(gc->irq.domain, pin)); chained_irq_exit(chip, desc); } diff --git a/drivers/pinctrl/pinctrl-pic32.c b/drivers/pinctrl/pinctrl-pic32.c index 31ceb958b3fe..96390228d388 100644 --- a/drivers/pinctrl/pinctrl-pic32.c +++ b/drivers/pinctrl/pinctrl-pic32.c @@ -2106,7 +2106,7 @@ static void pic32_gpio_irq_handler(struct irq_desc *desc) pending = pic32_gpio_get_pending(gc, stat); for_each_set_bit(pin, &pending, BITS_PER_LONG) - generic_handle_irq(irq_linear_revmap(gc->irqdomain, pin)); + generic_handle_irq(irq_linear_revmap(gc->irq.domain, pin)); chained_irq_exit(chip, desc); } diff --git a/drivers/pinctrl/pinctrl-pistachio.c b/drivers/pinctrl/pinctrl-pistachio.c index 55375b1b3cc8..302190d1558d 100644 --- a/drivers/pinctrl/pinctrl-pistachio.c +++ b/drivers/pinctrl/pinctrl-pistachio.c @@ -1307,7 +1307,7 @@ static void pistachio_gpio_irq_handler(struct irq_desc *desc) pending = gpio_readl(bank, GPIO_INTERRUPT_STATUS) & gpio_readl(bank, GPIO_INTERRUPT_EN); for_each_set_bit(pin, &pending, 16) - generic_handle_irq(irq_linear_revmap(gc->irqdomain, pin)); + generic_handle_irq(irq_linear_revmap(gc->irq.domain, pin)); chained_irq_exit(chip, desc); } diff --git a/drivers/pinctrl/pinctrl-st.c b/drivers/pinctrl/pinctrl-st.c index a5205b94b2e6..2081c67667a8 100644 --- a/drivers/pinctrl/pinctrl-st.c +++ b/drivers/pinctrl/pinctrl-st.c @@ -1408,7 +1408,7 @@ static void __gpio_irq_handler(struct st_gpio_bank *bank) continue; } - generic_handle_irq(irq_find_mapping(bank->gpio_chip.irqdomain, n)); + generic_handle_irq(irq_find_mapping(bank->gpio_chip.irq.domain, n)); } } } diff --git a/drivers/pinctrl/pinctrl-sx150x.c b/drivers/pinctrl/pinctrl-sx150x.c index 7450f5118445..7db4f6a6eb17 100644 --- a/drivers/pinctrl/pinctrl-sx150x.c +++ b/drivers/pinctrl/pinctrl-sx150x.c @@ -561,7 +561,7 @@ static irqreturn_t sx150x_irq_thread_fn(int irq, void *dev_id) status = val; for_each_set_bit(n, &status, pctl->data->ngpios) - handle_nested_irq(irq_find_mapping(pctl->gpio.irqdomain, n)); + handle_nested_irq(irq_find_mapping(pctl->gpio.irq.domain, n)); return IRQ_HANDLED; } diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c index ff491da64dab..7a960590ecaa 100644 --- a/drivers/pinctrl/qcom/pinctrl-msm.c +++ b/drivers/pinctrl/qcom/pinctrl-msm.c @@ -795,7 +795,7 @@ static void msm_gpio_irq_handler(struct irq_desc *desc) g = &pctrl->soc->groups[i]; val = readl(pctrl->regs + g->intr_status_reg); if (val & BIT(g->intr_status_bit)) { - irq_pin = irq_find_mapping(gc->irqdomain, i); + irq_pin = irq_find_mapping(gc->irq.domain, i); generic_handle_irq(irq_pin); handled++; } diff --git a/drivers/pinctrl/sirf/pinctrl-atlas7.c b/drivers/pinctrl/sirf/pinctrl-atlas7.c index 4db9323251e3..f5cef6e5fa3e 100644 --- a/drivers/pinctrl/sirf/pinctrl-atlas7.c +++ b/drivers/pinctrl/sirf/pinctrl-atlas7.c @@ -5820,7 +5820,7 @@ static void atlas7_gpio_handle_irq(struct irq_desc *desc) __func__, gc->label, bank->gpio_offset + pin_in_bank); generic_handle_irq( - irq_find_mapping(gc->irqdomain, + irq_find_mapping(gc->irq.domain, bank->gpio_offset + pin_in_bank)); } diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c b/drivers/pinctrl/sirf/pinctrl-sirf.c index d3ef05973901..8b14a1f1e671 100644 --- a/drivers/pinctrl/sirf/pinctrl-sirf.c +++ b/drivers/pinctrl/sirf/pinctrl-sirf.c @@ -587,7 +587,7 @@ static void sirfsoc_gpio_handle_irq(struct irq_desc *desc) if ((status & 0x1) && (ctrl & SIRFSOC_GPIO_CTL_INTR_EN_MASK)) { pr_debug("%s: gpio id %d idx %d happens\n", __func__, bank->id, idx); - generic_handle_irq(irq_find_mapping(gc->irqdomain, idx + + generic_handle_irq(irq_find_mapping(gc->irq.domain, idx + bank->id * SIRFSOC_GPIO_BANK_SIZE)); } diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c b/drivers/pinctrl/spear/pinctrl-plgpio.c index cf6d68c7345b..72ae6bccee55 100644 --- a/drivers/pinctrl/spear/pinctrl-plgpio.c +++ b/drivers/pinctrl/spear/pinctrl-plgpio.c @@ -401,7 +401,7 @@ static void plgpio_irq_handler(struct irq_desc *desc) /* get correct irq line number */ pin = i * MAX_GPIO_PER_REG + pin; generic_handle_irq( - irq_find_mapping(gc->irqdomain, pin)); + irq_find_mapping(gc->irq.domain, pin)); } } chained_irq_exit(irqchip, desc); diff --git a/drivers/platform/x86/intel_int0002_vgpio.c b/drivers/platform/x86/intel_int0002_vgpio.c index 92dc230ef5b2..f6b3af73dea5 100644 --- a/drivers/platform/x86/intel_int0002_vgpio.c +++ b/drivers/platform/x86/intel_int0002_vgpio.c @@ -119,7 +119,7 @@ static irqreturn_t int0002_irq(int irq, void *data) if (!(gpe_sts_reg & GPE0A_PME_B0_STS_BIT)) return IRQ_NONE; - generic_handle_irq(irq_find_mapping(chip->irqdomain, + generic_handle_irq(irq_find_mapping(chip->irq.domain, GPE0A_PME_B0_VIRT_GPIO_PIN)); pm_system_wakeup(); diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index a79b3b18fadd..c5dfa8c0b829 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -31,6 +31,14 @@ struct gpio_irq_chip { */ struct irq_chip *chip; + /** + * @domain: + * + * Interrupt translation domain; responsible for mapping between GPIO + * hwirq number and Linux IRQ number. + */ + struct irq_domain *domain; + /** * @domain_ops: * @@ -124,8 +132,6 @@ static inline struct gpio_irq_chip *to_gpio_irq_chip(struct irq_chip *chip) * safely. * @bgpio_dir: shadowed direction register for generic GPIO to clear/set * direction safely. - * @irqdomain: Interrupt translation domain; responsible for mapping - * between GPIO hwirq number and linux irq number * @irq_handler: the irq handler to use (often a predefined irq core function) * for GPIO IRQs, provided by GPIO driver * @irq_default_type: default IRQ triggering type applied during GPIO driver @@ -208,7 +214,6 @@ struct gpio_chip { * With CONFIG_GPIOLIB_IRQCHIP we get an irqchip inside the gpiolib * to handle IRQs for most practical cases. */ - struct irq_domain *irqdomain; irq_flow_handler_t irq_handler; unsigned int irq_default_type; unsigned int irq_chained_parent; -- cgit v1.2.3 From dc7b0387ee894c115ef5ddcaaf794125d6d9058c Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 7 Nov 2017 19:15:52 +0100 Subject: gpio: Move irq_valid_mask into struct gpio_irq_chip In order to consolidate the multiple ways to associate an IRQ chip with a GPIO chip, move more fields into the new struct gpio_irq_chip. Signed-off-by: Thierry Reding Acked-by: Grygorii Strashko Signed-off-by: Linus Walleij --- Documentation/gpio/driver.txt | 4 ++-- drivers/gpio/gpio-aspeed.c | 4 ++-- drivers/gpio/gpio-stmpe.c | 4 ++-- drivers/gpio/gpiolib.c | 16 ++++++++-------- drivers/pinctrl/intel/pinctrl-baytrail.c | 4 ++-- drivers/pinctrl/intel/pinctrl-cherryview.c | 4 ++-- drivers/platform/x86/intel_int0002_vgpio.c | 4 ++-- include/linux/gpio/driver.h | 21 +++++++++++++++------ 8 files changed, 35 insertions(+), 26 deletions(-) (limited to 'Documentation') diff --git a/Documentation/gpio/driver.txt b/Documentation/gpio/driver.txt index dcf6af1d9e56..d8de1c7de85a 100644 --- a/Documentation/gpio/driver.txt +++ b/Documentation/gpio/driver.txt @@ -313,8 +313,8 @@ symbol: mark all the child IRQs as having the other IRQ as parent. If there is a need to exclude certain GPIOs from the IRQ domain, you can -set .irq_need_valid_mask of the gpiochip before gpiochip_add_data() is -called. This allocates an .irq_valid_mask with as many bits set as there +set .irq.need_valid_mask of the gpiochip before gpiochip_add_data() is +called. This allocates an .irq.valid_mask with as many bits set as there are GPIOs in the chip. Drivers can exclude GPIOs by clearing bits from this mask. The mask must be filled in before gpiochip_irqchip_add() or gpiochip_irqchip_add_nested() is called. diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c index 2bfce0ab7326..8781817d9003 100644 --- a/drivers/gpio/gpio-aspeed.c +++ b/drivers/gpio/gpio-aspeed.c @@ -501,7 +501,7 @@ static void set_irq_valid_mask(struct aspeed_gpio *gpio) if (i >= gpio->config->nr_gpios) break; - clear_bit(i, gpio->chip.irq_valid_mask); + clear_bit(i, gpio->chip.irq.valid_mask); } props++; @@ -856,7 +856,7 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev) gpio->chip.set_config = aspeed_gpio_set_config; gpio->chip.label = dev_name(&pdev->dev); gpio->chip.base = -1; - gpio->chip.irq_need_valid_mask = true; + gpio->chip.irq.need_valid_mask = true; rc = devm_gpiochip_add_data(&pdev->dev, &gpio->chip, gpio); if (rc < 0) diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c index 18d8bef76d85..e6e5cca624a7 100644 --- a/drivers/gpio/gpio-stmpe.c +++ b/drivers/gpio/gpio-stmpe.c @@ -451,7 +451,7 @@ static int stmpe_gpio_probe(struct platform_device *pdev) of_property_read_u32(np, "st,norequest-mask", &stmpe_gpio->norequest_mask); if (stmpe_gpio->norequest_mask) - stmpe_gpio->chip.irq_need_valid_mask = true; + stmpe_gpio->chip.irq.need_valid_mask = true; if (irq < 0) dev_info(&pdev->dev, @@ -482,7 +482,7 @@ static int stmpe_gpio_probe(struct platform_device *pdev) /* Forbid unused lines to be mapped as IRQs */ for (i = 0; i < sizeof(u32); i++) if (stmpe_gpio->norequest_mask & BIT(i)) - clear_bit(i, stmpe_gpio->chip.irq_valid_mask); + clear_bit(i, stmpe_gpio->chip.irq.valid_mask); } ret = gpiochip_irqchip_add_nested(&stmpe_gpio->chip, &stmpe_gpio_irq_chip, diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 236a9f55a265..0bf844470693 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1504,33 +1504,33 @@ static struct gpio_chip *find_chip_by_name(const char *name) static int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gpiochip) { - if (!gpiochip->irq_need_valid_mask) + if (!gpiochip->irq.need_valid_mask) return 0; - gpiochip->irq_valid_mask = kcalloc(BITS_TO_LONGS(gpiochip->ngpio), + gpiochip->irq.valid_mask = kcalloc(BITS_TO_LONGS(gpiochip->ngpio), sizeof(long), GFP_KERNEL); - if (!gpiochip->irq_valid_mask) + if (!gpiochip->irq.valid_mask) return -ENOMEM; /* Assume by default all GPIOs are valid */ - bitmap_fill(gpiochip->irq_valid_mask, gpiochip->ngpio); + bitmap_fill(gpiochip->irq.valid_mask, gpiochip->ngpio); return 0; } static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gpiochip) { - kfree(gpiochip->irq_valid_mask); - gpiochip->irq_valid_mask = NULL; + kfree(gpiochip->irq.valid_mask); + gpiochip->irq.valid_mask = NULL; } static bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip, unsigned int offset) { /* No mask means all valid */ - if (likely(!gpiochip->irq_valid_mask)) + if (likely(!gpiochip->irq.valid_mask)) return true; - return test_bit(offset, gpiochip->irq_valid_mask); + return test_bit(offset, gpiochip->irq.valid_mask); } /** diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c index 5897981e5ed3..9c1ca29c60b7 100644 --- a/drivers/pinctrl/intel/pinctrl-baytrail.c +++ b/drivers/pinctrl/intel/pinctrl-baytrail.c @@ -1660,7 +1660,7 @@ static void byt_gpio_irq_init_hw(struct byt_gpio *vg) value = readl(reg); if (value & BYT_DIRECT_IRQ_EN) { - clear_bit(i, gc->irq_valid_mask); + clear_bit(i, gc->irq.valid_mask); dev_dbg(dev, "excluding GPIO %d from IRQ domain\n", i); } else if ((value & BYT_PIN_MUX) == byt_get_gpio_mux(vg, i)) { byt_gpio_clear_triggering(vg, i); @@ -1703,7 +1703,7 @@ static int byt_gpio_probe(struct byt_gpio *vg) gc->can_sleep = false; gc->parent = &vg->pdev->dev; gc->ngpio = vg->soc_data->npins; - gc->irq_need_valid_mask = true; + gc->irq.need_valid_mask = true; #ifdef CONFIG_PM_SLEEP vg->saved_context = devm_kcalloc(&vg->pdev->dev, gc->ngpio, diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index 1cd7043edbc1..e23def322de2 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -1584,7 +1584,7 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq) chip->label = dev_name(pctrl->dev); chip->parent = pctrl->dev; chip->base = -1; - chip->irq_need_valid_mask = need_valid_mask; + chip->irq.need_valid_mask = need_valid_mask; ret = devm_gpiochip_add_data(pctrl->dev, chip, pctrl); if (ret) { @@ -1616,7 +1616,7 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq) intsel >>= CHV_PADCTRL0_INTSEL_SHIFT; if (need_valid_mask && intsel >= pctrl->community->nirqs) - clear_bit(i, chip->irq_valid_mask); + clear_bit(i, chip->irq.valid_mask); } /* Clear all interrupts */ diff --git a/drivers/platform/x86/intel_int0002_vgpio.c b/drivers/platform/x86/intel_int0002_vgpio.c index f6b3af73dea5..f7b67e898abc 100644 --- a/drivers/platform/x86/intel_int0002_vgpio.c +++ b/drivers/platform/x86/intel_int0002_vgpio.c @@ -165,7 +165,7 @@ static int int0002_probe(struct platform_device *pdev) chip->direction_output = int0002_gpio_direction_output; chip->base = -1; chip->ngpio = GPE0A_PME_B0_VIRT_GPIO_PIN + 1; - chip->irq_need_valid_mask = true; + chip->irq.need_valid_mask = true; ret = devm_gpiochip_add_data(&pdev->dev, chip, NULL); if (ret) { @@ -173,7 +173,7 @@ static int int0002_probe(struct platform_device *pdev) return ret; } - bitmap_clear(chip->irq_valid_mask, 0, GPE0A_PME_B0_VIRT_GPIO_PIN); + bitmap_clear(chip->irq.valid_mask, 0, GPE0A_PME_B0_VIRT_GPIO_PIN); /* * We manually request the irq here instead of passing a flow-handler diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 1c3d06fe54b1..067efcd4f46d 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -99,6 +99,21 @@ struct gpio_irq_chip { * True if set the interrupt handling is nested. */ bool nested; + + /** + * @need_valid_mask: + * + * If set core allocates @valid_mask with all bits set to one. + */ + bool need_valid_mask; + + /** + * @valid_mask: + * + * If not %NULL holds bitmask of GPIOs which are valid to be included + * in IRQ domain of the chip. + */ + unsigned long *valid_mask; }; static inline struct gpio_irq_chip *to_gpio_irq_chip(struct irq_chip *chip) @@ -170,10 +185,6 @@ static inline struct gpio_irq_chip *to_gpio_irq_chip(struct irq_chip *chip) * safely. * @bgpio_dir: shadowed direction register for generic GPIO to clear/set * direction safely. - * @irq_need_valid_mask: If set core allocates @irq_valid_mask with all - * bits set to one - * @irq_valid_mask: If not %NULL holds bitmask of GPIOs which are valid to - * be included in IRQ domain of the chip * @lock_key: per GPIO IRQ chip lockdep class * * A gpio_chip can help platforms abstract various sources of GPIOs so @@ -244,8 +255,6 @@ struct gpio_chip { * With CONFIG_GPIOLIB_IRQCHIP we get an irqchip inside the gpiolib * to handle IRQs for most practical cases. */ - bool irq_need_valid_mask; - unsigned long *irq_valid_mask; struct lock_class_key *lock_key; /** -- cgit v1.2.3 From 2a96c818f484bcc16f42a09b030a470f2b44df04 Mon Sep 17 00:00:00 2001 From: Keiji Hayashibara Date: Tue, 24 Oct 2017 10:54:25 +0100 Subject: dt-bindings: nvmem: add description for UniPhier eFuse Add uniphier-efuse dt-bindings documentation. Signed-off-by: Keiji Hayashibara Acked-by: Rob Herring Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman --- .../devicetree/bindings/nvmem/uniphier-efuse.txt | 49 ++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/nvmem/uniphier-efuse.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/nvmem/uniphier-efuse.txt b/Documentation/devicetree/bindings/nvmem/uniphier-efuse.txt new file mode 100644 index 000000000000..eccf490d5a6d --- /dev/null +++ b/Documentation/devicetree/bindings/nvmem/uniphier-efuse.txt @@ -0,0 +1,49 @@ += UniPhier eFuse device tree bindings = + +This UniPhier eFuse must be under soc-glue. + +Required properties: +- compatible: should be "socionext,uniphier-efuse" +- reg: should contain the register location and length + += Data cells = +Are child nodes of efuse, bindings of which as described in +bindings/nvmem/nvmem.txt + +Example: + + soc-glue@5f900000 { + compatible = "socionext,uniphier-ld20-soc-glue-debug", + "simple-mfd"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x5f900000 0x2000>; + + efuse@100 { + compatible = "socionext,uniphier-efuse"; + reg = <0x100 0x28>; + }; + + efuse@200 { + compatible = "socionext,uniphier-efuse"; + reg = <0x200 0x68>; + #address-cells = <1>; + #size-cells = <1>; + + /* Data cells */ + usb_mon: usb-mon@54 { + reg = <0x54 0xc>; + }; + }; + }; + += Data consumers = +Are device nodes which consume nvmem data cells. + +Example: + + usb { + ... + nvmem-cells = <&usb_mon>; + nvmem-cell-names = "usb_mon"; + } -- cgit v1.2.3 From b7fe57b802c4f12da20920229acb9fff92300ad4 Mon Sep 17 00:00:00 2001 From: Icenowy Zheng Date: Tue, 24 Oct 2017 10:54:34 +0100 Subject: nvmem: sunxi-sid: add support for A64/H5's SID controller Allwinner A64/H5 SoCs come with a SID controller like the one in H3, but without the silicon bug that makes the initial value at 0x200 wrong, so the value at 0x200 can be directly read. Add support for this kind of SID controller. Signed-off-by: Icenowy Zheng Acked-by: Rob Herring Signed-off-by: Srinivas Kandagatla Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt | 1 + drivers/nvmem/sunxi_sid.c | 6 ++++++ 2 files changed, 7 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt b/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt index ef06d061913c..6ea0836939ee 100644 --- a/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt +++ b/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt @@ -5,6 +5,7 @@ Required properties: "allwinner,sun4i-a10-sid" "allwinner,sun7i-a20-sid" "allwinner,sun8i-h3-sid" + "allwinner,sun50i-a64-sid" - reg: Should contain registers location and length diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c index 1c3b5cf89212..99bd54d85fcb 100644 --- a/drivers/nvmem/sunxi_sid.c +++ b/drivers/nvmem/sunxi_sid.c @@ -198,10 +198,16 @@ static const struct sunxi_sid_cfg sun8i_h3_cfg = { .need_register_readout = true, }; +static const struct sunxi_sid_cfg sun50i_a64_cfg = { + .value_offset = 0x200, + .size = 0x100, +}; + static const struct of_device_id sunxi_sid_of_match[] = { { .compatible = "allwinner,sun4i-a10-sid", .data = &sun4i_a10_cfg }, { .compatible = "allwinner,sun7i-a20-sid", .data = &sun7i_a20_cfg }, { .compatible = "allwinner,sun8i-h3-sid", .data = &sun8i_h3_cfg }, + { .compatible = "allwinner,sun50i-a64-sid", .data = &sun50i_a64_cfg }, {/* sentinel */}, }; MODULE_DEVICE_TABLE(of, sunxi_sid_of_match); -- cgit v1.2.3 From 74ce1896c6c65b2f8cccbf59162d542988835835 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 2 Nov 2017 11:51:25 +0900 Subject: kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile We need to add "clean-files" in Makfiles to clean up DT blobs, but we often miss to do so. Since there are no source files that end with .dtb or .dtb.S, so we can clean-up those files from the top-level Makefile. Signed-off-by: Masahiro Yamada Acked-by: Arnd Bergmann Signed-off-by: Rob Herring --- Documentation/kbuild/makefiles.txt | 1 - Makefile | 2 +- arch/arc/boot/dts/Makefile | 1 - arch/arm/boot/dts/Makefile | 1 - arch/arm64/boot/dts/actions/Makefile | 1 - arch/arm64/boot/dts/al/Makefile | 1 - arch/arm64/boot/dts/allwinner/Makefile | 1 - arch/arm64/boot/dts/altera/Makefile | 1 - arch/arm64/boot/dts/amd/Makefile | 1 - arch/arm64/boot/dts/amlogic/Makefile | 1 - arch/arm64/boot/dts/apm/Makefile | 1 - arch/arm64/boot/dts/arm/Makefile | 1 - arch/arm64/boot/dts/broadcom/Makefile | 1 - arch/arm64/boot/dts/broadcom/northstar2/Makefile | 1 - arch/arm64/boot/dts/broadcom/stingray/Makefile | 1 - arch/arm64/boot/dts/cavium/Makefile | 1 - arch/arm64/boot/dts/exynos/Makefile | 1 - arch/arm64/boot/dts/freescale/Makefile | 1 - arch/arm64/boot/dts/hisilicon/Makefile | 1 - arch/arm64/boot/dts/lg/Makefile | 1 - arch/arm64/boot/dts/marvell/Makefile | 1 - arch/arm64/boot/dts/mediatek/Makefile | 1 - arch/arm64/boot/dts/nvidia/Makefile | 1 - arch/arm64/boot/dts/qcom/Makefile | 1 - arch/arm64/boot/dts/realtek/Makefile | 1 - arch/arm64/boot/dts/renesas/Makefile | 1 - arch/arm64/boot/dts/rockchip/Makefile | 1 - arch/arm64/boot/dts/socionext/Makefile | 1 - arch/arm64/boot/dts/sprd/Makefile | 1 - arch/arm64/boot/dts/xilinx/Makefile | 1 - arch/arm64/boot/dts/zte/Makefile | 1 - arch/c6x/boot/dts/Makefile | 2 -- arch/cris/boot/dts/Makefile | 2 -- arch/h8300/boot/dts/Makefile | 1 - arch/metag/boot/dts/Makefile | 1 - arch/microblaze/boot/Makefile | 2 +- arch/mips/boot/dts/Makefile | 1 - arch/mips/boot/dts/brcm/Makefile | 1 - arch/mips/boot/dts/cavium-octeon/Makefile | 1 - arch/mips/boot/dts/img/Makefile | 1 - arch/mips/boot/dts/ingenic/Makefile | 1 - arch/mips/boot/dts/lantiq/Makefile | 1 - arch/mips/boot/dts/mti/Makefile | 1 - arch/mips/boot/dts/netlogic/Makefile | 1 - arch/mips/boot/dts/ni/Makefile | 1 - arch/mips/boot/dts/pic32/Makefile | 1 - arch/mips/boot/dts/qca/Makefile | 1 - arch/mips/boot/dts/ralink/Makefile | 1 - arch/mips/boot/dts/xilfpga/Makefile | 1 - arch/nios2/boot/Makefile | 2 -- arch/openrisc/boot/dts/Makefile | 2 -- arch/powerpc/boot/Makefile | 2 +- arch/sh/boot/dts/Makefile | 2 -- arch/xtensa/boot/dts/Makefile | 2 -- 54 files changed, 3 insertions(+), 60 deletions(-) (limited to 'Documentation') diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt index 329e740adea7..411b7282c287 100644 --- a/Documentation/kbuild/makefiles.txt +++ b/Documentation/kbuild/makefiles.txt @@ -1153,7 +1153,6 @@ When kbuild executes, the following steps are followed (roughly): Example: targets += $(dtb-y) - clean-files += *.dtb DTC_FLAGS ?= -p 1024 --- 6.8 Custom kbuild commands diff --git a/Makefile b/Makefile index 64cbc66cebca..c1dcd852455e 100644 --- a/Makefile +++ b/Makefile @@ -1544,7 +1544,7 @@ clean: $(clean-dirs) $(call cmd,rmfiles) @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ - -o -name '*.ko.*' \ + -o -name '*.ko.*' -o -name '*.dtb' -o -name '*.dtb.S' \ -o -name '*.dwo' \ -o -name '*.su' \ -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ diff --git a/arch/arc/boot/dts/Makefile b/arch/arc/boot/dts/Makefile index a09f11b71e66..1257db1dc1be 100644 --- a/arch/arc/boot/dts/Makefile +++ b/arch/arc/boot/dts/Makefile @@ -14,4 +14,3 @@ dtstree := $(srctree)/$(src) dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index faf46abaa4a2..5eeefbcfe98c 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -1074,4 +1074,3 @@ dtstree := $(srctree)/$(src) dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) always := $(dtb-y) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/actions/Makefile b/arch/arm64/boot/dts/actions/Makefile index 62922d688ce3..89bb1b534492 100644 --- a/arch/arm64/boot/dts/actions/Makefile +++ b/arch/arm64/boot/dts/actions/Makefile @@ -2,4 +2,3 @@ dtb-$(CONFIG_ARCH_ACTIONS) += s900-bubblegum-96.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/al/Makefile b/arch/arm64/boot/dts/al/Makefile index 8a6cde4f9b23..8606a57e567f 100644 --- a/arch/arm64/boot/dts/al/Makefile +++ b/arch/arm64/boot/dts/al/Makefile @@ -2,4 +2,3 @@ dtb-$(CONFIG_ARCH_ALPINE) += alpine-v2-evp.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile index 19c3fbd75eda..871ed768f85d 100644 --- a/arch/arm64/boot/dts/allwinner/Makefile +++ b/arch/arm64/boot/dts/allwinner/Makefile @@ -11,4 +11,3 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-nanopi-neo2.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/altera/Makefile b/arch/arm64/boot/dts/altera/Makefile index d7a641698d77..7511b51d9b4a 100644 --- a/arch/arm64/boot/dts/altera/Makefile +++ b/arch/arm64/boot/dts/altera/Makefile @@ -2,4 +2,3 @@ dtb-$(CONFIG_ARCH_STRATIX10) += socfpga_stratix10_socdk.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/amd/Makefile b/arch/arm64/boot/dts/amd/Makefile index ba84770f789f..cb1c77967c9e 100644 --- a/arch/arm64/boot/dts/amd/Makefile +++ b/arch/arm64/boot/dts/amd/Makefile @@ -4,4 +4,3 @@ dtb-$(CONFIG_ARCH_SEATTLE) += amd-overdrive.dtb \ always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile index 7a9f48c27b1f..d86440346962 100644 --- a/arch/arm64/boot/dts/amlogic/Makefile +++ b/arch/arm64/boot/dts/amlogic/Makefile @@ -22,4 +22,3 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxm-rbox-pro.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/apm/Makefile b/arch/arm64/boot/dts/apm/Makefile index c75f17a49471..4334978f522e 100644 --- a/arch/arm64/boot/dts/apm/Makefile +++ b/arch/arm64/boot/dts/apm/Makefile @@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_XGENE) += apm-merlin.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/arm/Makefile b/arch/arm64/boot/dts/arm/Makefile index 75cc2aa10101..01c342f61ed3 100644 --- a/arch/arm64/boot/dts/arm/Makefile +++ b/arch/arm64/boot/dts/arm/Makefile @@ -5,4 +5,3 @@ dtb-$(CONFIG_ARCH_VEXPRESS) += vexpress-v2f-1xv7-ca53x2.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile index 3eaef3895d66..d720d0dc7043 100644 --- a/arch/arm64/boot/dts/broadcom/Makefile +++ b/arch/arm64/boot/dts/broadcom/Makefile @@ -4,4 +4,3 @@ dts-dirs += northstar2 dts-dirs += stingray always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/broadcom/northstar2/Makefile b/arch/arm64/boot/dts/broadcom/northstar2/Makefile index e01a1485b813..c589b9b55da8 100644 --- a/arch/arm64/boot/dts/broadcom/northstar2/Makefile +++ b/arch/arm64/boot/dts/broadcom/northstar2/Makefile @@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_BCM_IPROC) += ns2-xmc.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/broadcom/stingray/Makefile b/arch/arm64/boot/dts/broadcom/stingray/Makefile index f70028edad63..8edcc5264be8 100644 --- a/arch/arm64/boot/dts/broadcom/stingray/Makefile +++ b/arch/arm64/boot/dts/broadcom/stingray/Makefile @@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_BCM_IPROC) += bcm958742t.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/cavium/Makefile b/arch/arm64/boot/dts/cavium/Makefile index 581b2c1c400a..c63145e50271 100644 --- a/arch/arm64/boot/dts/cavium/Makefile +++ b/arch/arm64/boot/dts/cavium/Makefile @@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_THUNDER2) += thunder2-99xx.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/exynos/Makefile b/arch/arm64/boot/dts/exynos/Makefile index 7ddea53769a7..4633adf4cbdd 100644 --- a/arch/arm64/boot/dts/exynos/Makefile +++ b/arch/arm64/boot/dts/exynos/Makefile @@ -5,4 +5,3 @@ dtb-$(CONFIG_ARCH_EXYNOS) += \ always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile index 72c4b525726f..fe18e3d7b8e8 100644 --- a/arch/arm64/boot/dts/freescale/Makefile +++ b/arch/arm64/boot/dts/freescale/Makefile @@ -15,4 +15,3 @@ dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls2088a-rdb.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/hisilicon/Makefile b/arch/arm64/boot/dts/hisilicon/Makefile index 8960ecafd37d..cb25d7a5cb5c 100644 --- a/arch/arm64/boot/dts/hisilicon/Makefile +++ b/arch/arm64/boot/dts/hisilicon/Makefile @@ -7,4 +7,3 @@ dtb-$(CONFIG_ARCH_HISI) += hip07-d05.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/lg/Makefile b/arch/arm64/boot/dts/lg/Makefile index 5c7b54c12adc..c0bbe06b95de 100644 --- a/arch/arm64/boot/dts/lg/Makefile +++ b/arch/arm64/boot/dts/lg/Makefile @@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_LG1K) += lg1313-ref.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/marvell/Makefile b/arch/arm64/boot/dts/marvell/Makefile index 6cff81eeaae2..b471235d9e66 100644 --- a/arch/arm64/boot/dts/marvell/Makefile +++ b/arch/arm64/boot/dts/marvell/Makefile @@ -12,4 +12,3 @@ dtb-$(CONFIG_ARCH_MVEBU) += armada-8080-db.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile index 151723b5c733..80d174334014 100644 --- a/arch/arm64/boot/dts/mediatek/Makefile +++ b/arch/arm64/boot/dts/mediatek/Makefile @@ -7,4 +7,3 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-evb.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/nvidia/Makefile b/arch/arm64/boot/dts/nvidia/Makefile index 18941458cb4d..a9d51961bdca 100644 --- a/arch/arm64/boot/dts/nvidia/Makefile +++ b/arch/arm64/boot/dts/nvidia/Makefile @@ -6,4 +6,3 @@ dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-smaug.dtb dtb-$(CONFIG_ARCH_TEGRA_186_SOC) += tegra186-p2771-0000.dtb always := $(dtb-y) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile index ff81d7e5805e..65af6f9ac569 100644 --- a/arch/arm64/boot/dts/qcom/Makefile +++ b/arch/arm64/boot/dts/qcom/Makefile @@ -8,4 +8,3 @@ dtb-$(CONFIG_ARCH_QCOM) += msm8996-mtp.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/realtek/Makefile b/arch/arm64/boot/dts/realtek/Makefile index 8521e921e59a..88cb515f7b21 100644 --- a/arch/arm64/boot/dts/realtek/Makefile +++ b/arch/arm64/boot/dts/realtek/Makefile @@ -2,4 +2,3 @@ dtb-$(CONFIG_ARCH_REALTEK) += rtd1295-zidoo-x9s.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile index 381928bc1358..960dadee8aed 100644 --- a/arch/arm64/boot/dts/renesas/Makefile +++ b/arch/arm64/boot/dts/renesas/Makefile @@ -5,4 +5,3 @@ dtb-$(CONFIG_ARCH_R8A7796) += r8a7796-salvator-x.dtb r8a7796-m3ulcb.dtb dtb-$(CONFIG_ARCH_R8A77995) += r8a77995-draak.dtb always := $(dtb-y) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile index f1c9b13cea5c..6b6bb1db831c 100644 --- a/arch/arm64/boot/dts/rockchip/Makefile +++ b/arch/arm64/boot/dts/rockchip/Makefile @@ -13,4 +13,3 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3399-sapphire-excavator.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/socionext/Makefile b/arch/arm64/boot/dts/socionext/Makefile index 4bc091b365fd..5eed3cecbc16 100644 --- a/arch/arm64/boot/dts/socionext/Makefile +++ b/arch/arm64/boot/dts/socionext/Makefile @@ -6,4 +6,3 @@ dtb-$(CONFIG_ARCH_UNIPHIER) += \ uniphier-pxs3-ref.dtb always := $(dtb-y) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/sprd/Makefile b/arch/arm64/boot/dts/sprd/Makefile index f0535e6eaaaa..c91b62e115dc 100644 --- a/arch/arm64/boot/dts/sprd/Makefile +++ b/arch/arm64/boot/dts/sprd/Makefile @@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_SPRD) += sc9836-openphone.dtb \ always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/xilinx/Makefile b/arch/arm64/boot/dts/xilinx/Makefile index ae16427f6a4a..74e195650f04 100644 --- a/arch/arm64/boot/dts/xilinx/Makefile +++ b/arch/arm64/boot/dts/xilinx/Makefile @@ -2,4 +2,3 @@ dtb-$(CONFIG_ARCH_ZYNQMP) += zynqmp-ep108.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/arm64/boot/dts/zte/Makefile b/arch/arm64/boot/dts/zte/Makefile index d86c4def6bc9..71e07089cde0 100644 --- a/arch/arm64/boot/dts/zte/Makefile +++ b/arch/arm64/boot/dts/zte/Makefile @@ -3,4 +3,3 @@ dtb-$(CONFIG_ARCH_ZX) += zx296718-pcbox.dtb always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb diff --git a/arch/c6x/boot/dts/Makefile b/arch/c6x/boot/dts/Makefile index c7528b02d061..cb4874c67050 100644 --- a/arch/c6x/boot/dts/Makefile +++ b/arch/c6x/boot/dts/Makefile @@ -16,5 +16,3 @@ $(obj)/builtin.dtb: $(obj)/$(DTB).dtb $(call if_changed,cp) $(obj)/linked_dtb.o: $(obj)/builtin.dtb - -clean-files := *.dtb diff --git a/arch/cris/boot/dts/Makefile b/arch/cris/boot/dts/Makefile index faf69fb9919f..4a97c7dbd865 100644 --- a/arch/cris/boot/dts/Makefile +++ b/arch/cris/boot/dts/Makefile @@ -2,5 +2,3 @@ BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_BUILTIN_DTB)).dtb.o ifneq ($(CONFIG_BUILTIN_DTB),"") obj-$(CONFIG_OF) += $(BUILTIN_DTB) endif - -clean-files := *.dtb.S diff --git a/arch/h8300/boot/dts/Makefile b/arch/h8300/boot/dts/Makefile index 6c08467c6a3a..6f3fe4795518 100644 --- a/arch/h8300/boot/dts/Makefile +++ b/arch/h8300/boot/dts/Makefile @@ -12,4 +12,3 @@ dtstree := $(srctree)/$(src) dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) always := $(dtb-y) -clean-files := *.dtb.S *.dtb diff --git a/arch/metag/boot/dts/Makefile b/arch/metag/boot/dts/Makefile index 097c6da4547f..83d5b883e1f7 100644 --- a/arch/metag/boot/dts/Makefile +++ b/arch/metag/boot/dts/Makefile @@ -18,4 +18,3 @@ dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dts .SECONDARY: $(obj)/$(builtindtb-y).dtb.S always += $(dtb-y) -clean-files += *.dtb *.dtb.S diff --git a/arch/microblaze/boot/Makefile b/arch/microblaze/boot/Makefile index 91d2068da1b9..1cb84cf7c766 100644 --- a/arch/microblaze/boot/Makefile +++ b/arch/microblaze/boot/Makefile @@ -34,4 +34,4 @@ $(obj)/simpleImage.%: vmlinux FORCE $(call if_changed,strip) @echo 'Kernel: $@ is ready' ' (#'`cat .version`')' -clean-files += simpleImage.*.unstrip linux.bin.ub dts/*.dtb +clean-files += simpleImage.*.unstrip linux.bin.ub diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile index cbac26ce063e..7891ffa487d6 100644 --- a/arch/mips/boot/dts/Makefile +++ b/arch/mips/boot/dts/Makefile @@ -18,4 +18,3 @@ dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(foreach d,$(dt always := $(dtb-y) subdir-y := $(dts-dirs) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/brcm/Makefile b/arch/mips/boot/dts/brcm/Makefile index d61bc2aebf69..69a69d1f636e 100644 --- a/arch/mips/boot/dts/brcm/Makefile +++ b/arch/mips/boot/dts/brcm/Makefile @@ -40,4 +40,3 @@ obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/cavium-octeon/Makefile b/arch/mips/boot/dts/cavium-octeon/Makefile index 5b99c40a058f..a6fb331de0ff 100644 --- a/arch/mips/boot/dts/cavium-octeon/Makefile +++ b/arch/mips/boot/dts/cavium-octeon/Makefile @@ -6,4 +6,3 @@ obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/img/Makefile b/arch/mips/boot/dts/img/Makefile index 3d70958d0f5a..135f98761671 100644 --- a/arch/mips/boot/dts/img/Makefile +++ b/arch/mips/boot/dts/img/Makefile @@ -7,4 +7,3 @@ obj-$(CONFIG_MACH_PISTACHIO) += pistachio_marduk.dtb.o obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/ingenic/Makefile b/arch/mips/boot/dts/ingenic/Makefile index f2b864f07850..e3d0ec1bf577 100644 --- a/arch/mips/boot/dts/ingenic/Makefile +++ b/arch/mips/boot/dts/ingenic/Makefile @@ -7,4 +7,3 @@ obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/lantiq/Makefile b/arch/mips/boot/dts/lantiq/Makefile index 0906c62141b9..5976f089d038 100644 --- a/arch/mips/boot/dts/lantiq/Makefile +++ b/arch/mips/boot/dts/lantiq/Makefile @@ -6,4 +6,3 @@ obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/mti/Makefile b/arch/mips/boot/dts/mti/Makefile index fcabd69b7030..9a1a6dc2ef36 100644 --- a/arch/mips/boot/dts/mti/Makefile +++ b/arch/mips/boot/dts/mti/Makefile @@ -7,4 +7,3 @@ obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/netlogic/Makefile b/arch/mips/boot/dts/netlogic/Makefile index 9868057140b5..6b2cf492db18 100644 --- a/arch/mips/boot/dts/netlogic/Makefile +++ b/arch/mips/boot/dts/netlogic/Makefile @@ -10,4 +10,3 @@ obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/ni/Makefile b/arch/mips/boot/dts/ni/Makefile index 66cfdffc51c2..094da7219905 100644 --- a/arch/mips/boot/dts/ni/Makefile +++ b/arch/mips/boot/dts/ni/Makefile @@ -4,4 +4,3 @@ dtb-$(CONFIG_FIT_IMAGE_FDT_NI169445) += 169445.dtb obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/pic32/Makefile b/arch/mips/boot/dts/pic32/Makefile index 7ac790551ec9..0ee591b15720 100644 --- a/arch/mips/boot/dts/pic32/Makefile +++ b/arch/mips/boot/dts/pic32/Makefile @@ -9,4 +9,3 @@ obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/qca/Makefile b/arch/mips/boot/dts/qca/Makefile index 63a9ddf048c9..87cf351cff45 100644 --- a/arch/mips/boot/dts/qca/Makefile +++ b/arch/mips/boot/dts/qca/Makefile @@ -9,4 +9,3 @@ dtb-$(CONFIG_ATH79) += ar9331_tl_mr3020.dtb obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/ralink/Makefile b/arch/mips/boot/dts/ralink/Makefile index 55e2937b61f3..e0e3a9db8d76 100644 --- a/arch/mips/boot/dts/ralink/Makefile +++ b/arch/mips/boot/dts/ralink/Makefile @@ -11,4 +11,3 @@ obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/mips/boot/dts/xilfpga/Makefile b/arch/mips/boot/dts/xilfpga/Makefile index 913a752a9ff1..8b9ea11bf730 100644 --- a/arch/mips/boot/dts/xilfpga/Makefile +++ b/arch/mips/boot/dts/xilfpga/Makefile @@ -6,4 +6,3 @@ obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y)) obj- += dummy.o always := $(dtb-y) -clean-files := *.dtb *.dtb.S diff --git a/arch/nios2/boot/Makefile b/arch/nios2/boot/Makefile index c899876320df..2ba23a679732 100644 --- a/arch/nios2/boot/Makefile +++ b/arch/nios2/boot/Makefile @@ -53,7 +53,5 @@ $(obj)/%.dtb: $(src)/dts/%.dts FORCE $(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y)) -clean-files := *.dtb - install: sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)" diff --git a/arch/openrisc/boot/dts/Makefile b/arch/openrisc/boot/dts/Makefile index b092d30d6c23..0a5017ceaa6c 100644 --- a/arch/openrisc/boot/dts/Makefile +++ b/arch/openrisc/boot/dts/Makefile @@ -5,6 +5,4 @@ BUILTIN_DTB := endif obj-y += $(BUILTIN_DTB) -clean-files := *.dtb.S - #DTC_FLAGS ?= -p 1024 diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index c4e6fe35c075..c3caa5bdd6e6 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -439,7 +439,7 @@ zInstall: $(CONFIGURE) $(addprefix $(obj)/, $(image-y)) clean-files += $(image-) $(initrd-) cuImage.* dtbImage.* treeImage.* \ zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \ zImage.miboot zImage.pmac zImage.pseries \ - zImage.maple simpleImage.* otheros.bld *.dtb + zImage.maple simpleImage.* otheros.bld # clean up files cached by wrapper clean-kernel-base := vmlinux.strip vmlinux.bin diff --git a/arch/sh/boot/dts/Makefile b/arch/sh/boot/dts/Makefile index e5ce3a0de7f4..715def00a436 100644 --- a/arch/sh/boot/dts/Makefile +++ b/arch/sh/boot/dts/Makefile @@ -1,3 +1 @@ obj-$(CONFIG_USE_BUILTIN_DTB) += $(patsubst "%",%,$(CONFIG_BUILTIN_DTB_SOURCE)).dtb.o - -clean-files := *.dtb.S diff --git a/arch/xtensa/boot/dts/Makefile b/arch/xtensa/boot/dts/Makefile index a15e241c9153..c62dd6ca1f82 100644 --- a/arch/xtensa/boot/dts/Makefile +++ b/arch/xtensa/boot/dts/Makefile @@ -16,5 +16,3 @@ dtstree := $(srctree)/$(src) dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) always += $(dtb-y) -clean-files += *.dtb *.dtb.S - -- cgit v1.2.3 From f00d79750712511d0a83c108eea0d44b680a915f Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Wed, 11 Oct 2017 12:10:14 -0700 Subject: EVM: Allow userspace to signal an RSA key has been loaded EVM will only perform validation once a key has been loaded. This key may either be a symmetric trusted key (for HMAC validation and creation) or the public half of an asymmetric key (for digital signature validation). The /sys/kernel/security/evm interface allows userland to signal that a symmetric key has been loaded, but does not allow userland to signal that an asymmetric public key has been loaded. This patch extends the interface to permit userspace to pass a bitmask of loaded key types. It also allows userspace to block loading of a symmetric key in order to avoid a compromised system from being able to load an additional key type later. Signed-off-by: Matthew Garrett Signed-off-by: Mimi Zohar --- Documentation/ABI/testing/evm | 47 ++++++++++++++++++++++++++------------ security/integrity/evm/evm.h | 3 +++ security/integrity/evm/evm_secfs.c | 29 +++++++++++++---------- 3 files changed, 53 insertions(+), 26 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/evm b/Documentation/ABI/testing/evm index 8374d4557e5d..a0bbccb00736 100644 --- a/Documentation/ABI/testing/evm +++ b/Documentation/ABI/testing/evm @@ -7,17 +7,36 @@ Description: HMAC-sha1 value across the extended attributes, storing the value as the extended attribute 'security.evm'. - EVM depends on the Kernel Key Retention System to provide it - with a trusted/encrypted key for the HMAC-sha1 operation. - The key is loaded onto the root's keyring using keyctl. Until - EVM receives notification that the key has been successfully - loaded onto the keyring (echo 1 > /evm), EVM - can not create or validate the 'security.evm' xattr, but - returns INTEGRITY_UNKNOWN. Loading the key and signaling EVM - should be done as early as possible. Normally this is done - in the initramfs, which has already been measured as part - of the trusted boot. For more information on creating and - loading existing trusted/encrypted keys, refer to: - Documentation/keys-trusted-encrypted.txt. (A sample dracut - patch, which loads the trusted/encrypted key and enables - EVM, is available from http://linux-ima.sourceforge.net/#EVM.) + EVM supports two classes of security.evm. The first is + an HMAC-sha1 generated locally with a + trusted/encrypted key stored in the Kernel Key + Retention System. The second is a digital signature + generated either locally or remotely using an + asymmetric key. These keys are loaded onto root's + keyring using keyctl, and EVM is then enabled by + echoing a value to /evm: + + 1: enable HMAC validation and creation + 2: enable digital signature validation + 3: enable HMAC and digital signature validation and HMAC + creation + + Further writes will be blocked if HMAC support is enabled or + if bit 32 is set: + + echo 0x80000002 >/evm + + will enable digital signature validation and block + further writes to /evm. + + Until this is done, EVM can not create or validate the + 'security.evm' xattr, but returns INTEGRITY_UNKNOWN. + Loading keys and signaling EVM should be done as early + as possible. Normally this is done in the initramfs, + which has already been measured as part of the trusted + boot. For more information on creating and loading + existing trusted/encrypted keys, refer to: + Documentation/keys-trusted-encrypted.txt. Both dracut + (via 97masterkey and 98integrity) and systemd (via + core/ima-setup) have support for loading keys at boot + time. diff --git a/security/integrity/evm/evm.h b/security/integrity/evm/evm.h index f5f12727771a..241aca315b0c 100644 --- a/security/integrity/evm/evm.h +++ b/security/integrity/evm/evm.h @@ -23,6 +23,9 @@ #define EVM_INIT_HMAC 0x0001 #define EVM_INIT_X509 0x0002 +#define EVM_SETUP 0x80000000 /* userland has signaled key load */ + +#define EVM_INIT_MASK (EVM_INIT_HMAC | EVM_INIT_X509 | EVM_SETUP) extern int evm_initialized; extern char *evm_hmac; diff --git a/security/integrity/evm/evm_secfs.c b/security/integrity/evm/evm_secfs.c index c8dccd54d501..319cf16d6603 100644 --- a/security/integrity/evm/evm_secfs.c +++ b/security/integrity/evm/evm_secfs.c @@ -40,7 +40,7 @@ static ssize_t evm_read_key(struct file *filp, char __user *buf, if (*ppos != 0) return 0; - sprintf(temp, "%d", evm_initialized); + sprintf(temp, "%d", (evm_initialized & ~EVM_SETUP)); rc = simple_read_from_buffer(buf, count, ppos, temp, strlen(temp)); return rc; @@ -61,24 +61,29 @@ static ssize_t evm_read_key(struct file *filp, char __user *buf, static ssize_t evm_write_key(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { - char temp[80]; - int i; + int i, ret; - if (!capable(CAP_SYS_ADMIN) || (evm_initialized & EVM_INIT_HMAC)) + if (!capable(CAP_SYS_ADMIN) || (evm_initialized & EVM_SETUP)) return -EPERM; - if (count >= sizeof(temp) || count == 0) - return -EINVAL; - - if (copy_from_user(temp, buf, count) != 0) - return -EFAULT; + ret = kstrtoint_from_user(buf, count, 0, &i); - temp[count] = '\0'; + if (ret) + return ret; - if ((sscanf(temp, "%d", &i) != 1) || (i != 1)) + /* Reject invalid values */ + if (!i || (i & ~EVM_INIT_MASK) != 0) return -EINVAL; - evm_init_key(); + if (i & EVM_INIT_HMAC) { + ret = evm_init_key(); + if (ret != 0) + return ret; + /* Forbid further writes after the symmetric key is loaded */ + i |= EVM_SETUP; + } + + evm_initialized |= i; return count; } -- cgit v1.2.3 From 8adc430603d67e76a0f8491df21654f691acda62 Mon Sep 17 00:00:00 2001 From: "Andrew F. Davis" Date: Wed, 8 Nov 2017 15:24:59 -0600 Subject: ASoC: cs42l56: Fix reset GPIO name in example DT binding The binding states the reset GPIO property shall be named "cirrus,gpio-nreset" and this is what the driver looks for, but the example uses "gpio-reset". Fix this here. Fixes: 3bb40619aca8 ("ASoC: cs42l56: bindings: sound: Add bindings for CS42L56 CODEC") Signed-off-by: Andrew F. Davis Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/cs42l56.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/cs42l56.txt b/Documentation/devicetree/bindings/sound/cs42l56.txt index 4feb0eb27ea4..4ba520a28ae8 100644 --- a/Documentation/devicetree/bindings/sound/cs42l56.txt +++ b/Documentation/devicetree/bindings/sound/cs42l56.txt @@ -55,7 +55,7 @@ Example: codec: codec@4b { compatible = "cirrus,cs42l56"; reg = <0x4b>; - gpio-reset = <&gpio 10 0>; + cirrus,gpio-nreset = <&gpio 10 0>; cirrus,chgfreq-divisor = <0x05>; cirrus.ain1_ref_cfg; cirrus,micbias-lvl = <5>; -- cgit v1.2.3 From f7bc9b209e27c0b617378400136cc663a6314d0c Mon Sep 17 00:00:00 2001 From: "Gautham R. Shenoy" Date: Tue, 7 Nov 2017 13:39:29 +0530 Subject: cpufreq: stats: Handle the case when trans_table goes beyond PAGE_SIZE On platforms with large number of Pstates, the transition table, which is a NxN matrix, can overflow beyond the PAGE_SIZE boundary. This can be seen on POWER9 which has 100+ Pstates. As a result, each time the trans_table is read for any of the CPUs, we will get the following error. --------------------------------------------------- fill_read_buffer: show+0x0/0xa0 returned bad count --------------------------------------------------- This patch ensures that in case of an overflow, we print a warning once in the dmesg and return FILE TOO LARGE error for this and all subsequent accesses of trans_table. Signed-off-by: Gautham R. Shenoy Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- Documentation/cpu-freq/cpufreq-stats.txt | 3 +++ drivers/cpufreq/cpufreq_stats.c | 7 +++++-- 2 files changed, 8 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/cpu-freq/cpufreq-stats.txt b/Documentation/cpu-freq/cpufreq-stats.txt index 2bbe207354ed..a873855c811d 100644 --- a/Documentation/cpu-freq/cpufreq-stats.txt +++ b/Documentation/cpu-freq/cpufreq-stats.txt @@ -90,6 +90,9 @@ Freq_i to Freq_j. Freq_i is in descending order with increasing rows and Freq_j is in descending order with increasing columns. The output here also contains the actual freq values for each row and column for better readability. +If the transition table is bigger than PAGE_SIZE, reading this will +return an -EFBIG error. + -------------------------------------------------------------------------------- :/sys/devices/system/cpu/cpu0/cpufreq/stats # cat trans_table From : To diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index e75880eb037d..1e55b5790853 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -118,8 +118,11 @@ static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf) break; len += snprintf(buf + len, PAGE_SIZE - len, "\n"); } - if (len >= PAGE_SIZE) - return PAGE_SIZE; + + if (len >= PAGE_SIZE) { + pr_warn_once("cpufreq transition table exceeds PAGE_SIZE. Disabling\n"); + return -EFBIG; + } return len; } cpufreq_freq_attr_ro(trans_table); -- cgit v1.2.3 From 4dd6f17eb913d3d23dd6c07950627ac2c3068dca Mon Sep 17 00:00:00 2001 From: Michael Mueller Date: Thu, 6 Jul 2017 14:22:20 +0200 Subject: KVM: s390: clear_io_irq() requests are not expected for adapter interrupts There is a chance to delete not yet delivered I/O interrupts if an exploiter uses the subsystem identification word 0x0000 while processing a KVM_DEV_FLIC_CLEAR_IO_IRQ ioctl. -EINVAL will be returned now instead in that case. Classic interrupts will always have bit 0x10000 set in the schid while adapter interrupts have a zero schid. The clear_io_irq interface is only useful for classic interrupts (as adapter interrupts belong to many devices). Let's make this interface more strict and forbid a schid of 0. Signed-off-by: Michael Mueller Reviewed-by: Halil Pasic Reviewed-by: Christian Borntraeger Reviewed-by: Cornelia Huck Signed-off-by: Christian Borntraeger --- Documentation/virtual/kvm/devices/s390_flic.txt | 3 +++ arch/s390/kvm/interrupt.c | 2 ++ 2 files changed, 5 insertions(+) (limited to 'Documentation') diff --git a/Documentation/virtual/kvm/devices/s390_flic.txt b/Documentation/virtual/kvm/devices/s390_flic.txt index 2f1cbf1301d2..27ad53c7149d 100644 --- a/Documentation/virtual/kvm/devices/s390_flic.txt +++ b/Documentation/virtual/kvm/devices/s390_flic.txt @@ -156,3 +156,6 @@ FLIC with an unknown group or attribute gives the error code EINVAL (instead of ENXIO, as specified in the API documentation). It is not possible to conclude that a FLIC operation is unavailable based on the error code resulting from a usage attempt. + +Note: The KVM_DEV_FLIC_CLEAR_IO_IRQ ioctl will return EINVAL in case a zero +schid is specified. diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c index a3da4f3065aa..c8aacced23fb 100644 --- a/arch/s390/kvm/interrupt.c +++ b/arch/s390/kvm/interrupt.c @@ -2191,6 +2191,8 @@ static int clear_io_irq(struct kvm *kvm, struct kvm_device_attr *attr) return -EINVAL; if (copy_from_user(&schid, (void __user *) attr->addr, sizeof(schid))) return -EFAULT; + if (!schid) + return -EINVAL; kfree(kvm_s390_get_io_int(kvm, isc_mask, schid)); /* * If userspace is conforming to the architecture, we can have at most -- cgit v1.2.3 From b2596d70351370530d3fce16f3b6e6f1cd4dbdf0 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 20 Sep 2017 12:51:51 -0300 Subject: dt-bindings: mfd: mc13xxx: Remove obsolete property The 'fsl,spi-num-chipselects' property is obsolete according to Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt, so remove it from the example. Signed-off-by: Fabio Estevam Acked-by: Rob Herring Signed-off-by: Lee Jones --- Documentation/devicetree/bindings/mfd/mc13xxx.txt | 1 - 1 file changed, 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/mfd/mc13xxx.txt b/Documentation/devicetree/bindings/mfd/mc13xxx.txt index 39ba4146769d..ac235fe385fc 100644 --- a/Documentation/devicetree/bindings/mfd/mc13xxx.txt +++ b/Documentation/devicetree/bindings/mfd/mc13xxx.txt @@ -113,7 +113,6 @@ MC13892 regulators: Examples: ecspi@70010000 { /* ECSPI1 */ - fsl,spi-num-chipselects = <2>; cs-gpios = <&gpio4 24 0>, /* GPIO4_24 */ <&gpio4 25 0>; /* GPIO4_25 */ -- cgit v1.2.3 From 924d4db29f1237f9fe90a7439d2ee81837d282bd Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Thu, 9 Nov 2017 11:39:20 +0100 Subject: gpio: rcar: Add r8a77995 (R-Car D3) support This patch adds binding for r8a77995 (R-Car D3). This SoC can use "renesas,rcar-gen3-gpio" fallback compatibility. So, this patch doesn't modify the gpio-rcar driver. Signed-off-by: Yoshihiro Shimoda Acked-by: Simon Horman Acked-by: Rob Herring Signed-off-by: Geert Uytterhoeven Signed-off-by: Linus Walleij --- Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt index 41137a1cc099..a7ac460ad657 100644 --- a/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt +++ b/Documentation/devicetree/bindings/gpio/renesas,gpio-rcar.txt @@ -15,6 +15,7 @@ Required Properties: - "renesas,gpio-r8a7795": for R8A7795 (R-Car H3) compatible GPIO controller. - "renesas,gpio-r8a7796": for R8A7796 (R-Car M3-W) compatible GPIO controller. - "renesas,gpio-r8a77970": for R8A77970 (R-Car V3M) compatible GPIO controller. + - "renesas,gpio-r8a77995": for R8A77995 (R-Car D3) compatible GPIO controller. - "renesas,rcar-gen1-gpio": for a generic R-Car Gen1 GPIO controller. - "renesas,rcar-gen2-gpio": for a generic R-Car Gen2 or RZ/G1 GPIO controller. - "renesas,rcar-gen3-gpio": for a generic R-Car Gen3 GPIO controller. -- cgit v1.2.3 From da9a1446d248f673a8560ce46251ff620214ab7b Mon Sep 17 00:00:00 2001 From: Christian Borntraeger Date: Thu, 9 Nov 2017 10:00:45 +0100 Subject: KVM: s390: provide a capability for AIS state migration The AIS capability was introduced in 4.12, while the interface to migrate the state was added in 4.13. Unfortunately it is not possible for userspace to detect the migration capability without creating a flic kvm device. As in QEMU the cpu model detection runs on the "none" machine this will result in cpu model issues regarding the "ais" capability. To get the "ais" capability properly let's add a new KVM capability that tells userspace that AIS states can be migrated. Signed-off-by: Christian Borntraeger Reviewed-by: Cornelia Huck Reviewed-by: David Hildenbrand Acked-by: Halil Pasic --- Documentation/virtual/kvm/api.txt | 9 +++++++++ Documentation/virtual/kvm/devices/s390_flic.txt | 2 ++ arch/s390/kvm/kvm-s390.c | 1 + include/uapi/linux/kvm.h | 1 + 4 files changed, 13 insertions(+) (limited to 'Documentation') diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index e63a35fafef0..49540e53c4bd 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -4347,3 +4347,12 @@ This capability indicates that userspace can load HV_X64_MSR_VP_INDEX msr. Its value is used to denote the target vcpu for a SynIC interrupt. For compatibilty, KVM initializes this msr to KVM's internal vcpu index. When this capability is absent, userspace can still query this msr's value. + +8.13 KVM_CAP_S390_AIS_MIGRATION + +Architectures: s390 +Parameters: none + +This capability indicates if the flic device will be able to get/set the +AIS states for migration via the KVM_DEV_FLIC_AISM_ALL attribute and allows +to discover this without having to create a flic device. diff --git a/Documentation/virtual/kvm/devices/s390_flic.txt b/Documentation/virtual/kvm/devices/s390_flic.txt index 27ad53c7149d..a4e20a090174 100644 --- a/Documentation/virtual/kvm/devices/s390_flic.txt +++ b/Documentation/virtual/kvm/devices/s390_flic.txt @@ -151,6 +151,8 @@ struct kvm_s390_ais_all { to an ISC (MSB0 bit 0 to ISC 0 and so on). The combination of simm bit and nimm bit presents AIS mode for a ISC. + KVM_DEV_FLIC_AISM_ALL is indicated by KVM_CAP_S390_AIS_MIGRATION. + Note: The KVM_SET_DEVICE_ATTR/KVM_GET_DEVICE_ATTR device ioctls executed on FLIC with an unknown group or attribute gives the error code EINVAL (instead of ENXIO, as specified in the API documentation). It is not possible to conclude diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index de6a5b790da0..8f4b655f65d7 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -395,6 +395,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_S390_USER_INSTR0: case KVM_CAP_S390_CMMA_MIGRATION: case KVM_CAP_S390_AIS: + case KVM_CAP_S390_AIS_MIGRATION: r = 1; break; case KVM_CAP_S390_MEM_OP: diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 838887587411..b60595696836 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -930,6 +930,7 @@ struct kvm_ppc_resize_hpt { #define KVM_CAP_PPC_SMT_POSSIBLE 147 #define KVM_CAP_HYPERV_SYNIC2 148 #define KVM_CAP_HYPERV_VP_INDEX 149 +#define KVM_CAP_S390_AIS_MIGRATION 150 #ifdef KVM_CAP_IRQ_ROUTING -- cgit v1.2.3 From bad12f43d0b164aad2a32b48bdc09d0d9680a213 Mon Sep 17 00:00:00 2001 From: Aleksandar Markovic Date: Thu, 9 Nov 2017 18:09:30 +0100 Subject: Documentation: Add device tree binding for Goldfish FB driver Add documentation for DT binding of Goldfish FB driver. The compatible string used by OS for binding the driver is "google,goldfish-fb". Signed-off-by: Miodrag Dinic Signed-off-by: Goran Ferenc Signed-off-by: Aleksandar Markovic Acked-by: Rob Herring Cc: David Airlie Cc: Douglas Leung Cc: James Hogan Cc: Mark Rutland Cc: Paul Burton Cc: Petar Jovanovic Cc: Raghu Gandham Signed-off-by: Bartlomiej Zolnierkiewicz --- .../devicetree/bindings/display/google,goldfish-fb.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/google,goldfish-fb.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/display/google,goldfish-fb.txt b/Documentation/devicetree/bindings/display/google,goldfish-fb.txt new file mode 100644 index 000000000000..751fa9f51e5d --- /dev/null +++ b/Documentation/devicetree/bindings/display/google,goldfish-fb.txt @@ -0,0 +1,17 @@ +Android Goldfish framebuffer + +Android Goldfish framebuffer device used by Android emulator. + +Required properties: + +- compatible : should contain "google,goldfish-fb" +- reg : +- interrupts : + +Example: + + display-controller@1f008000 { + compatible = "google,goldfish-fb"; + interrupts = <0x10>; + reg = <0x1f008000 0x100>; + }; -- cgit v1.2.3 From 48c926cd3414c7e628909f6f831394184816da87 Mon Sep 17 00:00:00 2001 From: Marco Franchi Date: Wed, 8 Nov 2017 14:27:48 -0200 Subject: dt-bindings: Remove leading zeros from bindings notation Improve the binding example by removing all the leading zeros to fix the following dtc warnings: Warning (unit_address_format): Node /XXX unit name should not have leading 0s Converted using the following command: perl -p -i -e 's/\@0+([0-9a-f])/\@$1/g' `find ./Documentation/devicetree/bindings "*.txt"` Some unnecessary changes were manually fixed. Signed-off-by: Marco Franchi Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/arm/samsung/pmu.txt | 2 +- .../devicetree/bindings/arm/samsung/samsung-boards.txt | 2 +- Documentation/devicetree/bindings/arm/sp810.txt | 2 +- .../devicetree/bindings/arm/vexpress-sysreg.txt | 2 +- Documentation/devicetree/bindings/ata/ahci-platform.txt | 2 +- Documentation/devicetree/bindings/ata/imx-sata.txt | 2 +- Documentation/devicetree/bindings/bus/imx-weim.txt | 2 +- Documentation/devicetree/bindings/bus/sunxi-rsb.txt | 2 +- .../devicetree/bindings/clock/arm-syscon-icst.txt | 2 +- .../devicetree/bindings/clock/clk-exynos-audss.txt | 2 +- .../devicetree/bindings/clock/clk-s5pv210-audss.txt | 2 +- .../devicetree/bindings/clock/dove-divider-clock.txt | 2 +- Documentation/devicetree/bindings/clock/imx1-clock.txt | 4 ++-- Documentation/devicetree/bindings/clock/imx6q-clock.txt | 4 ++-- .../devicetree/bindings/clock/maxim,max77686.txt | 4 ++-- Documentation/devicetree/bindings/clock/st/st,clkgen.txt | 2 +- Documentation/devicetree/bindings/clock/sunxi-ccu.txt | 4 ++-- Documentation/devicetree/bindings/clock/sunxi.txt | 16 ++++++++-------- Documentation/devicetree/bindings/clock/ti,cdce706.txt | 2 +- Documentation/devicetree/bindings/crypto/sun4i-ss.txt | 2 +- .../devicetree/bindings/display/etnaviv/etnaviv-drm.txt | 2 +- Documentation/devicetree/bindings/display/imx/hdmi.txt | 4 ++-- .../devicetree/bindings/display/simple-framebuffer.txt | 2 +- .../devicetree/bindings/display/sunxi/sun4i-drm.txt | 4 ++-- Documentation/devicetree/bindings/dma/sun4i-dma.txt | 4 ++-- Documentation/devicetree/bindings/dma/sun6i-dma.txt | 2 +- Documentation/devicetree/bindings/dma/ti-edma.txt | 6 +++--- Documentation/devicetree/bindings/dma/zxdma.txt | 2 +- .../bindings/firmware/nvidia,tegra186-bpmp.txt | 2 +- .../devicetree/bindings/gpio/gpio-dsp-keystone.txt | 2 +- .../devicetree/bindings/gpio/gpio-tz1090-pdc.txt | 2 +- Documentation/devicetree/bindings/gpio/gpio-tz1090.txt | 2 +- Documentation/devicetree/bindings/i2c/i2c-axxia.txt | 2 +- Documentation/devicetree/bindings/i2c/i2c-sunxi-p2wi.txt | 2 +- .../devicetree/bindings/iio/magnetometer/ak8974.txt | 2 +- .../devicetree/bindings/iio/magnetometer/ak8975.txt | 2 +- .../devicetree/bindings/input/sun4i-lradc-keys.txt | 2 +- .../devicetree/bindings/input/touchscreen/egalax-ts.txt | 2 +- .../devicetree/bindings/input/touchscreen/imx6ul_tsc.txt | 2 +- .../interrupt-controller/allwinner,sunxi-nmi.txt | 2 +- .../bindings/interrupt-controller/ti,keystone-irq.txt | 2 +- Documentation/devicetree/bindings/iommu/qcom,iommu.txt | 2 +- .../devicetree/bindings/leds/register-bit-led.txt | 16 ++++++++-------- .../devicetree/bindings/mailbox/ti,message-manager.txt | 2 +- Documentation/devicetree/bindings/marvell.txt | 4 ++-- Documentation/devicetree/bindings/media/i2c/tc358743.txt | 2 +- Documentation/devicetree/bindings/media/img-ir-rev1.txt | 2 +- Documentation/devicetree/bindings/media/stih-cec.txt | 2 +- .../devicetree/bindings/media/stih407-c8sectpfe.txt | 2 +- Documentation/devicetree/bindings/media/sunxi-ir.txt | 2 +- Documentation/devicetree/bindings/mfd/max77686.txt | 2 +- Documentation/devicetree/bindings/mfd/max77802.txt | 2 +- Documentation/devicetree/bindings/mfd/mfd.txt | 2 +- Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt | 4 ++-- Documentation/devicetree/bindings/mfd/sun6i-prcm.txt | 2 +- Documentation/devicetree/bindings/mfd/syscon.txt | 2 +- Documentation/devicetree/bindings/mmc/mmc.txt | 2 +- Documentation/devicetree/bindings/mmc/sdhci-st.txt | 4 ++-- Documentation/devicetree/bindings/mmc/sunxi-mmc.txt | 4 ++-- Documentation/devicetree/bindings/mtd/sunxi-nand.txt | 2 +- .../devicetree/bindings/net/allwinner,sun4i-emac.txt | 2 +- .../devicetree/bindings/net/allwinner,sun4i-mdio.txt | 4 ++-- .../devicetree/bindings/net/allwinner,sun7i-a20-gmac.txt | 2 +- Documentation/devicetree/bindings/net/brcm,bcmgenet.txt | 2 +- Documentation/devicetree/bindings/net/can/m_can.txt | 2 +- Documentation/devicetree/bindings/net/can/sun4i_can.txt | 4 ++-- .../bindings/net/wireless/brcm,bcm43xx-fmac.txt | 2 +- .../devicetree/bindings/nvmem/allwinner,sunxi-sid.txt | 4 ++-- Documentation/devicetree/bindings/nvmem/brcm,ocotp.txt | 2 +- Documentation/devicetree/bindings/nvmem/imx-ocotp.txt | 2 +- Documentation/devicetree/bindings/nvmem/nvmem.txt | 2 +- Documentation/devicetree/bindings/nvmem/qfprom.txt | 2 +- .../devicetree/bindings/pci/nvidia,tegra20-pcie.txt | 12 ++++++------ .../devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt | 2 +- Documentation/devicetree/bindings/phy/mxs-usb-phy.txt | 2 +- Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt | 2 +- .../bindings/pinctrl/allwinner,sunxi-pinctrl.txt | 2 +- .../devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt | 4 ++-- .../bindings/pinctrl/img,tz1090-pdc-pinctrl.txt | 4 ++-- .../devicetree/bindings/pinctrl/img,tz1090-pinctrl.txt | 4 ++-- .../bindings/pinctrl/nvidia,tegra124-xusb-padctl.txt | 2 +- .../devicetree/bindings/pinctrl/pinctrl-mt65xx.txt | 2 +- Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt | 2 +- .../devicetree/bindings/pinctrl/qcom,msm8996-pinctrl.txt | 2 +- Documentation/devicetree/bindings/power/fsl,imx-gpc.txt | 4 ++-- .../bindings/power/reset/imx-snvs-poweroff.txt | 2 +- .../devicetree/bindings/power/reset/keystone-reset.txt | 4 ++-- .../devicetree/bindings/powerpc/fsl/mcu-mpc8349emitx.txt | 2 +- Documentation/devicetree/bindings/pwm/pwm-sun4i.txt | 2 +- Documentation/devicetree/bindings/regulator/max77686.txt | 2 +- Documentation/devicetree/bindings/regulator/max77802.txt | 2 +- .../bindings/reset/allwinner,sunxi-clock-reset.txt | 2 +- Documentation/devicetree/bindings/reset/fsl,imx-src.txt | 6 +++--- .../devicetree/bindings/reset/ti-syscon-reset.txt | 2 +- Documentation/devicetree/bindings/rtc/sun6i-rtc.txt | 2 +- Documentation/devicetree/bindings/rtc/sunxi-rtc.txt | 2 +- .../devicetree/bindings/soc/fsl/cpm_qe/qe/par_io.txt | 2 +- .../devicetree/bindings/soc/fsl/cpm_qe/qe/pincfg.txt | 2 +- .../devicetree/bindings/soc/ti/sci-pm-domain.txt | 2 +- .../devicetree/bindings/sound/cdns,xtfpga-i2s.txt | 2 +- Documentation/devicetree/bindings/sound/fsl,asrc.txt | 2 +- Documentation/devicetree/bindings/sound/fsl,esai.txt | 2 +- Documentation/devicetree/bindings/sound/fsl,spdif.txt | 2 +- Documentation/devicetree/bindings/sound/imx-audmux.txt | 2 +- Documentation/devicetree/bindings/sound/samsung-i2s.txt | 2 +- Documentation/devicetree/bindings/sound/sun4i-codec.txt | 4 ++-- Documentation/devicetree/bindings/sound/sun4i-i2s.txt | 2 +- .../devicetree/bindings/sound/sun8i-a33-codec.txt | 2 +- .../devicetree/bindings/sound/sun8i-codec-analog.txt | 2 +- .../devicetree/bindings/sound/sunxi,sun4i-spdif.txt | 2 +- Documentation/devicetree/bindings/sound/zte,zx-spdif.txt | 2 +- Documentation/devicetree/bindings/spi/spi-sun4i.txt | 2 +- Documentation/devicetree/bindings/spi/spi-sun6i.txt | 4 ++-- Documentation/devicetree/bindings/sram/samsung-sram.txt | 2 +- Documentation/devicetree/bindings/sram/sunxi-sram.txt | 4 ++-- .../bindings/timer/allwinner,sun5i-a13-hstimer.txt | 2 +- .../devicetree/bindings/usb/allwinner,sun4i-a10-musb.txt | 2 +- Documentation/devicetree/bindings/usb/am33xx-usb.txt | 2 +- Documentation/devicetree/bindings/usb/atmel-usb.txt | 4 ++-- Documentation/devicetree/bindings/usb/ohci-da8xx.txt | 2 +- Documentation/devicetree/bindings/usb/usb-ehci.txt | 2 +- Documentation/devicetree/bindings/usb/usb-ohci.txt | 2 +- Documentation/devicetree/bindings/usb/usb3503.txt | 2 +- Documentation/devicetree/bindings/usb/usbmisc-imx.txt | 2 +- Documentation/devicetree/bindings/watchdog/mtk-wdt.txt | 2 +- Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt | 2 +- 126 files changed, 172 insertions(+), 172 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/samsung/pmu.txt b/Documentation/devicetree/bindings/arm/samsung/pmu.txt index bf5fc59a6938..088584a98cf4 100644 --- a/Documentation/devicetree/bindings/arm/samsung/pmu.txt +++ b/Documentation/devicetree/bindings/arm/samsung/pmu.txt @@ -62,7 +62,7 @@ pmu_system_controller: system-controller@10040000 { Example of clock consumer : -usb3503: usb3503@08 { +usb3503: usb3503@8 { /* ... */ clock-names = "refclk"; clocks = <&pmu_system_controller 0>; diff --git a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt index 3c551894f621..fa674818e7e8 100644 --- a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt +++ b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.txt @@ -71,7 +71,7 @@ Optional nodes: - compatible: only "samsung,secure-firmware" is currently supported - reg: address of non-secure SYSRAM used for communication with firmware - firmware@0203F000 { + firmware@203F000 { compatible = "samsung,secure-firmware"; reg = <0x0203F000 0x1000>; }; diff --git a/Documentation/devicetree/bindings/arm/sp810.txt b/Documentation/devicetree/bindings/arm/sp810.txt index 6808fb5dee40..1b2ab1ff5587 100644 --- a/Documentation/devicetree/bindings/arm/sp810.txt +++ b/Documentation/devicetree/bindings/arm/sp810.txt @@ -33,7 +33,7 @@ Required properties: property with the highest frequency Example: - v2m_sysctl: sysctl@020000 { + v2m_sysctl: sysctl@20000 { compatible = "arm,sp810", "arm,primecell"; reg = <0x020000 0x1000>; clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&smbclk>; diff --git a/Documentation/devicetree/bindings/arm/vexpress-sysreg.txt b/Documentation/devicetree/bindings/arm/vexpress-sysreg.txt index 00318d083c9e..50095802fb4a 100644 --- a/Documentation/devicetree/bindings/arm/vexpress-sysreg.txt +++ b/Documentation/devicetree/bindings/arm/vexpress-sysreg.txt @@ -37,7 +37,7 @@ Example: compatible = "arm,vexpress-sysreg"; reg = <0x10000000 0x1000>; - v2m_led_gpios: sys_led@08 { + v2m_led_gpios: sys_led@8 { compatible = "arm,vexpress-sysreg,sys_led"; gpio-controller; #gpio-cells = <2>; diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt index fedc213b5f1a..c760ecb81381 100644 --- a/Documentation/devicetree/bindings/ata/ahci-platform.txt +++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt @@ -56,7 +56,7 @@ Examples: interrupts = <115>; }; - ahci: sata@01c18000 { + ahci: sata@1c18000 { compatible = "allwinner,sun4i-a10-ahci"; reg = <0x01c18000 0x1000>; interrupts = <56>; diff --git a/Documentation/devicetree/bindings/ata/imx-sata.txt b/Documentation/devicetree/bindings/ata/imx-sata.txt index fa511db18408..a3d14719e478 100644 --- a/Documentation/devicetree/bindings/ata/imx-sata.txt +++ b/Documentation/devicetree/bindings/ata/imx-sata.txt @@ -25,7 +25,7 @@ Optional properties: Examples: -sata@02200000 { +sata@2200000 { compatible = "fsl,imx6q-ahci"; reg = <0x02200000 0x4000>; interrupts = <0 39 IRQ_TYPE_LEVEL_HIGH>; diff --git a/Documentation/devicetree/bindings/bus/imx-weim.txt b/Documentation/devicetree/bindings/bus/imx-weim.txt index 6630d842c7a3..683eaf3aed79 100644 --- a/Documentation/devicetree/bindings/bus/imx-weim.txt +++ b/Documentation/devicetree/bindings/bus/imx-weim.txt @@ -61,7 +61,7 @@ Timing property for child nodes. It is mandatory, not optional. Example for an imx6q-sabreauto board, the NOR flash connected to the WEIM: - weim: weim@021b8000 { + weim: weim@21b8000 { compatible = "fsl,imx6q-weim"; reg = <0x021b8000 0x4000>; clocks = <&clks 196>; diff --git a/Documentation/devicetree/bindings/bus/sunxi-rsb.txt b/Documentation/devicetree/bindings/bus/sunxi-rsb.txt index 3dd28343b6ce..eb3ed628c6f1 100644 --- a/Documentation/devicetree/bindings/bus/sunxi-rsb.txt +++ b/Documentation/devicetree/bindings/bus/sunxi-rsb.txt @@ -28,7 +28,7 @@ which can normally be found in the datasheet. Example: - rsb@01f03400 { + rsb@1f03400 { compatible = "allwinner,sun8i-a23-rsb"; reg = <0x01f03400 0x400>; interrupts = <0 39 4>; diff --git a/Documentation/devicetree/bindings/clock/arm-syscon-icst.txt b/Documentation/devicetree/bindings/clock/arm-syscon-icst.txt index 27468119fd94..4cd81742038f 100644 --- a/Documentation/devicetree/bindings/clock/arm-syscon-icst.txt +++ b/Documentation/devicetree/bindings/clock/arm-syscon-icst.txt @@ -59,7 +59,7 @@ syscon: syscon@10000000 { compatible = "syscon"; reg = <0x10000000 0x1000>; - oscclk0: osc0@0c { + oscclk0: osc0@c { compatible = "arm,syscon-icst307"; #clock-cells = <0>; lock-offset = <0x20>; diff --git a/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt b/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt index 0c3d6015868d..2cba012f5af0 100644 --- a/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt +++ b/Documentation/devicetree/bindings/clock/clk-exynos-audss.txt @@ -80,7 +80,7 @@ Example 3: I2S controller node that consumes the clock generated by the clock controller. Refer to the standard clock bindings for information about 'clocks' and 'clock-names' property. -i2s0: i2s@03830000 { +i2s0: i2s@3830000 { compatible = "samsung,i2s-v5"; reg = <0x03830000 0x100>; dmas = <&pdma0 10 diff --git a/Documentation/devicetree/bindings/clock/clk-s5pv210-audss.txt b/Documentation/devicetree/bindings/clock/clk-s5pv210-audss.txt index 4fc869b69d4a..f6272dcd96f4 100644 --- a/Documentation/devicetree/bindings/clock/clk-s5pv210-audss.txt +++ b/Documentation/devicetree/bindings/clock/clk-s5pv210-audss.txt @@ -43,7 +43,7 @@ Example: I2S controller node that consumes the clock generated by the clock controller. Refer to the standard clock bindings for information about 'clocks' and 'clock-names' property. - i2s0: i2s@03830000 { + i2s0: i2s@3830000 { /* ... */ clock-names = "iis", "i2s_opclk0", "i2s_opclk1"; diff --git a/Documentation/devicetree/bindings/clock/dove-divider-clock.txt b/Documentation/devicetree/bindings/clock/dove-divider-clock.txt index e3eb0f657c5e..217871f483c0 100644 --- a/Documentation/devicetree/bindings/clock/dove-divider-clock.txt +++ b/Documentation/devicetree/bindings/clock/dove-divider-clock.txt @@ -21,7 +21,7 @@ Required properties: a size of 8. - #clock-cells : from common clock binding; shall be set to 1 -divider_clk: core-clock@0064 { +divider_clk: core-clock@64 { compatible = "marvell,dove-divider-clock"; reg = <0x0064 0x8>; #clock-cells = <1>; diff --git a/Documentation/devicetree/bindings/clock/imx1-clock.txt b/Documentation/devicetree/bindings/clock/imx1-clock.txt index b7adf4e3ea98..9823baf7acb6 100644 --- a/Documentation/devicetree/bindings/clock/imx1-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx1-clock.txt @@ -10,13 +10,13 @@ ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx1-clock.h for the full list of i.MX1 clock IDs. Examples: - clks: ccm@0021b000 { + clks: ccm@21b000 { #clock-cells = <1>; compatible = "fsl,imx1-ccm"; reg = <0x0021b000 0x1000>; }; - pwm: pwm@00208000 { + pwm: pwm@208000 { #pwm-cells = <2>; compatible = "fsl,imx1-pwm"; reg = <0x00208000 0x1000>; diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.txt b/Documentation/devicetree/bindings/clock/imx6q-clock.txt index aa0a4d423ef5..a45ca67a9d5f 100644 --- a/Documentation/devicetree/bindings/clock/imx6q-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx6q-clock.txt @@ -14,14 +14,14 @@ Examples: #include -clks: ccm@020c4000 { +clks: ccm@20c4000 { compatible = "fsl,imx6q-ccm"; reg = <0x020c4000 0x4000>; interrupts = <0 87 0x04 0 88 0x04>; #clock-cells = <1>; }; -uart1: serial@02020000 { +uart1: serial@2020000 { compatible = "fsl,imx6q-uart", "fsl,imx21-uart"; reg = <0x02020000 0x4000>; interrupts = <0 26 0x04>; diff --git a/Documentation/devicetree/bindings/clock/maxim,max77686.txt b/Documentation/devicetree/bindings/clock/maxim,max77686.txt index 8398a3a5e106..3472b461ca93 100644 --- a/Documentation/devicetree/bindings/clock/maxim,max77686.txt +++ b/Documentation/devicetree/bindings/clock/maxim,max77686.txt @@ -46,7 +46,7 @@ Example: /* ... */ Node of the MFD chip - max77686: max77686@09 { + max77686: max77686@9 { compatible = "maxim,max77686"; interrupt-parent = <&wakeup_eint>; interrupts = <26 0>; @@ -71,7 +71,7 @@ Example: /* ... */ Node of the MFD chip - max77802: max77802@09 { + max77802: max77802@9 { compatible = "maxim,max77802"; interrupt-parent = <&wakeup_eint>; interrupts = <26 0>; diff --git a/Documentation/devicetree/bindings/clock/st/st,clkgen.txt b/Documentation/devicetree/bindings/clock/st/st,clkgen.txt index c35390f60545..7364953d0d0b 100644 --- a/Documentation/devicetree/bindings/clock/st/st,clkgen.txt +++ b/Documentation/devicetree/bindings/clock/st/st,clkgen.txt @@ -42,7 +42,7 @@ Required properties: Example: - clockgen-a@090ff000 { + clockgen-a@90ff000 { compatible = "st,clkgen-c32"; reg = <0x90ff000 0x1000>; diff --git a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt index 7eda08eb8a1e..4ca21c3a6fc9 100644 --- a/Documentation/devicetree/bindings/clock/sunxi-ccu.txt +++ b/Documentation/devicetree/bindings/clock/sunxi-ccu.txt @@ -36,7 +36,7 @@ For the PRCM CCUs on A83T/H3/A64, two more clocks are needed: - "iosc": the SoC's internal frequency oscillator Example for generic CCU: -ccu: clock@01c20000 { +ccu: clock@1c20000 { compatible = "allwinner,sun8i-h3-ccu"; reg = <0x01c20000 0x400>; clocks = <&osc24M>, <&osc32k>; @@ -46,7 +46,7 @@ ccu: clock@01c20000 { }; Example for PRCM CCU: -r_ccu: clock@01f01400 { +r_ccu: clock@1f01400 { compatible = "allwinner,sun50i-a64-r-ccu"; reg = <0x01f01400 0x100>; clocks = <&osc24M>, <&osc32k>, <&iosc>, <&ccu CLK_PLL_PERIPH0>; diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt index 8f7619d8c8d8..1a042e20b115 100644 --- a/Documentation/devicetree/bindings/clock/sunxi.txt +++ b/Documentation/devicetree/bindings/clock/sunxi.txt @@ -137,7 +137,7 @@ the address block, which is related to the overall mmc block. For example: -osc24M: clk@01c20050 { +osc24M: clk@1c20050 { #clock-cells = <0>; compatible = "allwinner,sun4i-a10-osc-clk"; reg = <0x01c20050 0x4>; @@ -145,7 +145,7 @@ osc24M: clk@01c20050 { clock-output-names = "osc24M"; }; -pll1: clk@01c20000 { +pll1: clk@1c20000 { #clock-cells = <0>; compatible = "allwinner,sun4i-a10-pll1-clk"; reg = <0x01c20000 0x4>; @@ -153,7 +153,7 @@ pll1: clk@01c20000 { clock-output-names = "pll1"; }; -pll5: clk@01c20020 { +pll5: clk@1c20020 { #clock-cells = <1>; compatible = "allwinner,sun4i-pll5-clk"; reg = <0x01c20020 0x4>; @@ -161,7 +161,7 @@ pll5: clk@01c20020 { clock-output-names = "pll5_ddr", "pll5_other"; }; -pll6: clk@01c20028 { +pll6: clk@1c20028 { #clock-cells = <1>; compatible = "allwinner,sun6i-a31-pll6-clk"; reg = <0x01c20028 0x4>; @@ -169,7 +169,7 @@ pll6: clk@01c20028 { clock-output-names = "pll6", "pll6x2"; }; -cpu: cpu@01c20054 { +cpu: cpu@1c20054 { #clock-cells = <0>; compatible = "allwinner,sun4i-a10-cpu-clk"; reg = <0x01c20054 0x4>; @@ -177,7 +177,7 @@ cpu: cpu@01c20054 { clock-output-names = "cpu"; }; -mmc0_clk: clk@01c20088 { +mmc0_clk: clk@1c20088 { #clock-cells = <1>; compatible = "allwinner,sun4i-a10-mmc-clk"; reg = <0x01c20088 0x4>; @@ -199,7 +199,7 @@ gmac_int_tx_clk: clk@3 { clock-output-names = "gmac_int_tx"; }; -gmac_clk: clk@01c20164 { +gmac_clk: clk@1c20164 { #clock-cells = <0>; compatible = "allwinner,sun7i-a20-gmac-clk"; reg = <0x01c20164 0x4>; @@ -211,7 +211,7 @@ gmac_clk: clk@01c20164 { clock-output-names = "gmac"; }; -mmc_config_clk: clk@01c13000 { +mmc_config_clk: clk@1c13000 { compatible = "allwinner,sun9i-a80-mmc-config-clk"; reg = <0x01c13000 0x10>; clocks = <&ahb0_gates 8>; diff --git a/Documentation/devicetree/bindings/clock/ti,cdce706.txt b/Documentation/devicetree/bindings/clock/ti,cdce706.txt index 616836e7e1e2..959d96632f5d 100644 --- a/Documentation/devicetree/bindings/clock/ti,cdce706.txt +++ b/Documentation/devicetree/bindings/clock/ti,cdce706.txt @@ -25,7 +25,7 @@ Example: }; }; ... - i2c0: i2c-master@0d090000 { + i2c0: i2c-master@d090000 { ... cdce706: clock-synth@69 { compatible = "ti,cdce706"; diff --git a/Documentation/devicetree/bindings/crypto/sun4i-ss.txt b/Documentation/devicetree/bindings/crypto/sun4i-ss.txt index 5d38e9b7033f..f2dc3d9bca92 100644 --- a/Documentation/devicetree/bindings/crypto/sun4i-ss.txt +++ b/Documentation/devicetree/bindings/crypto/sun4i-ss.txt @@ -14,7 +14,7 @@ Optional properties: - reset-names : must contain "ahb" Example: - crypto: crypto-engine@01c15000 { + crypto: crypto-engine@1c15000 { compatible = "allwinner,sun4i-a10-crypto"; reg = <0x01c15000 0x1000>; interrupts = ; diff --git a/Documentation/devicetree/bindings/display/etnaviv/etnaviv-drm.txt b/Documentation/devicetree/bindings/display/etnaviv/etnaviv-drm.txt index ed5e0a7894ad..05176f1ae108 100644 --- a/Documentation/devicetree/bindings/display/etnaviv/etnaviv-drm.txt +++ b/Documentation/devicetree/bindings/display/etnaviv/etnaviv-drm.txt @@ -42,7 +42,7 @@ Optional properties: example: -gpu_3d: gpu@00130000 { +gpu_3d: gpu@130000 { compatible = "vivante,gc"; reg = <0x00130000 0x4000>; interrupts = <0 9 IRQ_TYPE_LEVEL_HIGH>; diff --git a/Documentation/devicetree/bindings/display/imx/hdmi.txt b/Documentation/devicetree/bindings/display/imx/hdmi.txt index 66a8f86e5d12..6d021e71c9cf 100644 --- a/Documentation/devicetree/bindings/display/imx/hdmi.txt +++ b/Documentation/devicetree/bindings/display/imx/hdmi.txt @@ -32,11 +32,11 @@ Optional properties Example: - gpr: iomuxc-gpr@020e0000 { + gpr: iomuxc-gpr@20e0000 { /* ... */ }; - hdmi: hdmi@0120000 { + hdmi: hdmi@120000 { #address-cells = <1>; #size-cells = <0>; compatible = "fsl,imx6q-hdmi"; diff --git a/Documentation/devicetree/bindings/display/simple-framebuffer.txt b/Documentation/devicetree/bindings/display/simple-framebuffer.txt index 8c9e9f515c87..5a9ce511be88 100644 --- a/Documentation/devicetree/bindings/display/simple-framebuffer.txt +++ b/Documentation/devicetree/bindings/display/simple-framebuffer.txt @@ -78,7 +78,7 @@ chosen { stdout-path = "display0"; }; -soc@01c00000 { +soc@1c00000 { lcdc0: lcdc@1c0c000 { compatible = "allwinner,sun4i-a10-lcdc"; ... diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt index 92441086caba..b7faa6f6a326 100644 --- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt +++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt @@ -266,7 +266,7 @@ connector { }; }; -hdmi: hdmi@01c16000 { +hdmi: hdmi@1c16000 { compatible = "allwinner,sun5i-a10s-hdmi"; reg = <0x01c16000 0x1000>; interrupts = <58>; @@ -305,7 +305,7 @@ hdmi: hdmi@01c16000 { }; }; -tve0: tv-encoder@01c0a000 { +tve0: tv-encoder@1c0a000 { compatible = "allwinner,sun4i-a10-tv-encoder"; reg = <0x01c0a000 0x1000>; clocks = <&ahb_gates 34>; diff --git a/Documentation/devicetree/bindings/dma/sun4i-dma.txt b/Documentation/devicetree/bindings/dma/sun4i-dma.txt index 3b484380c56a..8ad556aca70b 100644 --- a/Documentation/devicetree/bindings/dma/sun4i-dma.txt +++ b/Documentation/devicetree/bindings/dma/sun4i-dma.txt @@ -12,7 +12,7 @@ Required properties: second cell holding the request line number. Example: - dma: dma-controller@01c02000 { + dma: dma-controller@1c02000 { compatible = "allwinner,sun4i-a10-dma"; reg = <0x01c02000 0x1000>; interrupts = <27>; @@ -32,7 +32,7 @@ The three cells in order are: 3. The port ID as specified in the datasheet Example: - spi2: spi@01c17000 { + spi2: spi@1c17000 { compatible = "allwinner,sun4i-a10-spi"; reg = <0x01c17000 0x1000>; interrupts = <0 12 4>; diff --git a/Documentation/devicetree/bindings/dma/sun6i-dma.txt b/Documentation/devicetree/bindings/dma/sun6i-dma.txt index 98fbe1a5c6dd..717851407fac 100644 --- a/Documentation/devicetree/bindings/dma/sun6i-dma.txt +++ b/Documentation/devicetree/bindings/dma/sun6i-dma.txt @@ -38,7 +38,7 @@ The two cells in order are: 2. The port ID as specified in the datasheet Example: -spi2: spi@01c6a000 { +spi2: spi@1c6a000 { compatible = "allwinner,sun6i-a31-spi"; reg = <0x01c6a000 0x1000>; interrupts = <0 67 4>; diff --git a/Documentation/devicetree/bindings/dma/ti-edma.txt b/Documentation/devicetree/bindings/dma/ti-edma.txt index 41f0c1a07c56..66026dcf53e1 100644 --- a/Documentation/devicetree/bindings/dma/ti-edma.txt +++ b/Documentation/devicetree/bindings/dma/ti-edma.txt @@ -142,7 +142,7 @@ mcasp0: mcasp@48038000 { }; 2. -edma1: edma@02728000 { +edma1: edma@2728000 { compatible = "ti,k2g-edma3-tpcc", "ti,edma3-tpcc"; reg = <0x02728000 0x8000>; reg-names = "edma3_cc"; @@ -165,13 +165,13 @@ edma1: edma@02728000 { power-domains = <&k2g_pds 0x4f>; }; -edma1_tptc0: tptc@027b0000 { +edma1_tptc0: tptc@27b0000 { compatible = "ti,k2g-edma3-tptc", "ti,edma3-tptc"; reg = <0x027b0000 0x400>; power-domains = <&k2g_pds 0x4f>; }; -edma1_tptc1: tptc@027b8000 { +edma1_tptc1: tptc@27b8000 { compatible = "ti, k2g-edma3-tptc", "ti,edma3-tptc"; reg = <0x027b8000 0x400>; power-domains = <&k2g_pds 0x4f>; diff --git a/Documentation/devicetree/bindings/dma/zxdma.txt b/Documentation/devicetree/bindings/dma/zxdma.txt index 3207ceb04d0b..abec59f35fde 100644 --- a/Documentation/devicetree/bindings/dma/zxdma.txt +++ b/Documentation/devicetree/bindings/dma/zxdma.txt @@ -26,7 +26,7 @@ Controller: Client: Use specific request line passing from dmax For example, spdif0 tx channel request line is 4 - spdif0: spdif0@0b004000 { + spdif0: spdif0@b004000 { #sound-dai-cells = <0>; compatible = "zte,zx296702-spdif"; reg = <0x0b004000 0x1000>; diff --git a/Documentation/devicetree/bindings/firmware/nvidia,tegra186-bpmp.txt b/Documentation/devicetree/bindings/firmware/nvidia,tegra186-bpmp.txt index e821e16ad65b..0c10802c8327 100644 --- a/Documentation/devicetree/bindings/firmware/nvidia,tegra186-bpmp.txt +++ b/Documentation/devicetree/bindings/firmware/nvidia,tegra186-bpmp.txt @@ -66,7 +66,7 @@ See ".../sram/sram.txt" for the bindings. Example: -hsp_top0: hsp@03c00000 { +hsp_top0: hsp@3c00000 { ... #mbox-cells = <2>; }; diff --git a/Documentation/devicetree/bindings/gpio/gpio-dsp-keystone.txt b/Documentation/devicetree/bindings/gpio/gpio-dsp-keystone.txt index 6c7e6c7302f5..0423699d74c7 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-dsp-keystone.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-dsp-keystone.txt @@ -25,7 +25,7 @@ Please refer to gpio.txt in this directory for details of the common GPIO bindings used by client devices. Example: - dspgpio0: keystone_dsp_gpio@02620240 { + dspgpio0: keystone_dsp_gpio@2620240 { compatible = "ti,keystone-dsp-gpio"; ti,syscon-dev = <&devctrl 0x240>; gpio-controller; diff --git a/Documentation/devicetree/bindings/gpio/gpio-tz1090-pdc.txt b/Documentation/devicetree/bindings/gpio/gpio-tz1090-pdc.txt index 1fd98ffa8cb7..528f5ef5a893 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-tz1090-pdc.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-tz1090-pdc.txt @@ -30,7 +30,7 @@ Optional properties: Example: - pdc_gpios: gpio-controller@02006500 { + pdc_gpios: gpio-controller@2006500 { gpio-controller; #gpio-cells = <2>; diff --git a/Documentation/devicetree/bindings/gpio/gpio-tz1090.txt b/Documentation/devicetree/bindings/gpio/gpio-tz1090.txt index 174cdf309170..b05a90e0ab29 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-tz1090.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-tz1090.txt @@ -59,7 +59,7 @@ Required properties: Example: - gpios: gpio-controller@02005800 { + gpios: gpio-controller@2005800 { #address-cells = <1>; #size-cells = <0>; compatible = "img,tz1090-gpio"; diff --git a/Documentation/devicetree/bindings/i2c/i2c-axxia.txt b/Documentation/devicetree/bindings/i2c/i2c-axxia.txt index 2296d782b4c2..7d53a2b79553 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-axxia.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-axxia.txt @@ -17,7 +17,7 @@ Optional properties : Example : -i2c@02010084000 { +i2c@2010084000 { compatible = "lsi,api2c"; device_type = "i2c"; #address-cells = <1>; diff --git a/Documentation/devicetree/bindings/i2c/i2c-sunxi-p2wi.txt b/Documentation/devicetree/bindings/i2c/i2c-sunxi-p2wi.txt index 6b765485af7d..49df0053347a 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-sunxi-p2wi.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-sunxi-p2wi.txt @@ -24,7 +24,7 @@ Slave device properties: Example: - p2wi@01f03400 { + p2wi@1f03400 { compatible = "allwinner,sun6i-a31-p2wi"; reg = <0x01f03400 0x400>; interrupts = <0 39 4>; diff --git a/Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt b/Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt index 77d5aba1bd8c..baecc4a85197 100644 --- a/Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt +++ b/Documentation/devicetree/bindings/iio/magnetometer/ak8974.txt @@ -19,7 +19,7 @@ Optional properties: Example: -ak8974@0f { +ak8974@f { compatible = "asahi-kasei,ak8974"; reg = <0x0f>; avdd-supply = <&foo_reg>; diff --git a/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt b/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt index e1e7dd3259f6..aa67ceb0d4e0 100644 --- a/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt +++ b/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt @@ -13,7 +13,7 @@ Optional properties: Example: -ak8975@0c { +ak8975@c { compatible = "asahi-kasei,ak8975"; reg = <0x0c>; gpios = <&gpj0 7 0>; diff --git a/Documentation/devicetree/bindings/input/sun4i-lradc-keys.txt b/Documentation/devicetree/bindings/input/sun4i-lradc-keys.txt index 4357e498ef04..1458c3179a63 100644 --- a/Documentation/devicetree/bindings/input/sun4i-lradc-keys.txt +++ b/Documentation/devicetree/bindings/input/sun4i-lradc-keys.txt @@ -19,7 +19,7 @@ Example: #include - lradc: lradc@01c22800 { + lradc: lradc@1c22800 { compatible = "allwinner,sun4i-a10-lradc-keys"; reg = <0x01c22800 0x100>; interrupts = <31>; diff --git a/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt b/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt index 49fa14ed155c..298e3442f143 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/egalax-ts.txt @@ -10,7 +10,7 @@ Required properties: Example: - egalax_ts@04 { + touchscreen@4 { compatible = "eeti,egalax_ts"; reg = <0x04>; interrupt-parent = <&gpio1>; diff --git a/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt b/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt index e67e58b61706..164915004424 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/imx6ul_tsc.txt @@ -21,7 +21,7 @@ Optional properties: each read. Valid values are 1, 4, 8, 16 and 32. Example: - tsc: tsc@02040000 { + tsc: tsc@2040000 { compatible = "fsl,imx6ul-tsc"; reg = <0x02040000 0x4000>, <0x0219c000 0x4000>; interrupts = , diff --git a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sunxi-nmi.txt b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sunxi-nmi.txt index 4ae553eb333d..4903fb72d883 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sunxi-nmi.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sunxi-nmi.txt @@ -20,7 +20,7 @@ Required properties: Example: -sc-nmi-intc@01c00030 { +sc-nmi-intc@1c00030 { compatible = "allwinner,sun7i-a20-sc-nmi"; interrupt-controller; #interrupt-cells = <2>; diff --git a/Documentation/devicetree/bindings/interrupt-controller/ti,keystone-irq.txt b/Documentation/devicetree/bindings/interrupt-controller/ti,keystone-irq.txt index d9bb106bdd16..5f94d7739d8d 100644 --- a/Documentation/devicetree/bindings/interrupt-controller/ti,keystone-irq.txt +++ b/Documentation/devicetree/bindings/interrupt-controller/ti,keystone-irq.txt @@ -20,7 +20,7 @@ Please refer to interrupts.txt in this directory for details of the common Interrupt Controllers bindings used by client devices. Example: - kirq0: keystone_irq0@026202a0 { + kirq0: keystone_irq0@26202a0 { compatible = "ti,keystone-irq"; ti,syscon-dev = <&devctrl 0x2a0>; interrupts = ; diff --git a/Documentation/devicetree/bindings/iommu/qcom,iommu.txt b/Documentation/devicetree/bindings/iommu/qcom,iommu.txt index b2641ceb2b40..059139abce35 100644 --- a/Documentation/devicetree/bindings/iommu/qcom,iommu.txt +++ b/Documentation/devicetree/bindings/iommu/qcom,iommu.txt @@ -115,7 +115,7 @@ to non-secure vs secure interrupt line. iommus = <&apps_iommu 4>; }; - gpu@01c00000 { + gpu@1c00000 { ... iommus = <&gpu_iommu 1>, <&gpu_iommu 2>; }; diff --git a/Documentation/devicetree/bindings/leds/register-bit-led.txt b/Documentation/devicetree/bindings/leds/register-bit-led.txt index 59b56365f648..cf1ea403ba7a 100644 --- a/Documentation/devicetree/bindings/leds/register-bit-led.txt +++ b/Documentation/devicetree/bindings/leds/register-bit-led.txt @@ -32,7 +32,7 @@ syscon: syscon@10000000 { compatible = "arm,realview-pb1176-syscon", "syscon"; reg = <0x10000000 0x1000>; - led@08.0 { + led@8.0 { compatible = "register-bit-led"; offset = <0x08>; mask = <0x01>; @@ -40,7 +40,7 @@ syscon: syscon@10000000 { linux,default-trigger = "heartbeat"; default-state = "on"; }; - led@08.1 { + led@8.1 { compatible = "register-bit-led"; offset = <0x08>; mask = <0x02>; @@ -48,7 +48,7 @@ syscon: syscon@10000000 { linux,default-trigger = "mmc0"; default-state = "off"; }; - led@08.2 { + led@8.2 { compatible = "register-bit-led"; offset = <0x08>; mask = <0x04>; @@ -56,35 +56,35 @@ syscon: syscon@10000000 { linux,default-trigger = "cpu0"; default-state = "off"; }; - led@08.3 { + led@8.3 { compatible = "register-bit-led"; offset = <0x08>; mask = <0x08>; label = "versatile:3"; default-state = "off"; }; - led@08.4 { + led@8.4 { compatible = "register-bit-led"; offset = <0x08>; mask = <0x10>; label = "versatile:4"; default-state = "off"; }; - led@08.5 { + led@8.5 { compatible = "register-bit-led"; offset = <0x08>; mask = <0x20>; label = "versatile:5"; default-state = "off"; }; - led@08.6 { + led@8.6 { compatible = "register-bit-led"; offset = <0x08>; mask = <0x40>; label = "versatile:6"; default-state = "off"; }; - led@08.7 { + led@8.7 { compatible = "register-bit-led"; offset = <0x08>; mask = <0x80>; diff --git a/Documentation/devicetree/bindings/mailbox/ti,message-manager.txt b/Documentation/devicetree/bindings/mailbox/ti,message-manager.txt index b449d025049f..c3b55b3ede8a 100644 --- a/Documentation/devicetree/bindings/mailbox/ti,message-manager.txt +++ b/Documentation/devicetree/bindings/mailbox/ti,message-manager.txt @@ -29,7 +29,7 @@ Required properties: Example(K2G): ------------ - msgmgr: msgmgr@02a00000 { + msgmgr: msgmgr@2a00000 { compatible = "ti,k2g-message-manager"; #mbox-cells = <2>; reg-names = "queue_proxy_region", "queue_state_debug_region"; diff --git a/Documentation/devicetree/bindings/marvell.txt b/Documentation/devicetree/bindings/marvell.txt index ea2b16ced49b..7f722316458a 100644 --- a/Documentation/devicetree/bindings/marvell.txt +++ b/Documentation/devicetree/bindings/marvell.txt @@ -446,7 +446,7 @@ prefixed with the string "marvell,", for Marvell Technology Group Ltd. that services interrupts for this device. Example Discovery CPU Error node: - cpu-error@0070 { + cpu-error@70 { compatible = "marvell,mv64360-cpu-error"; reg = <0x70 0x10 0x128 0x28>; interrupts = <3>; @@ -466,7 +466,7 @@ prefixed with the string "marvell,", for Marvell Technology Group Ltd. that services interrupts for this device. Example Discovery SRAM Controller node: - sram-ctrl@0380 { + sram-ctrl@380 { compatible = "marvell,mv64360-sram-ctrl"; reg = <0x380 0x80>; interrupts = <13>; diff --git a/Documentation/devicetree/bindings/media/i2c/tc358743.txt b/Documentation/devicetree/bindings/media/i2c/tc358743.txt index 5218921629ed..49f8bcc2ea4d 100644 --- a/Documentation/devicetree/bindings/media/i2c/tc358743.txt +++ b/Documentation/devicetree/bindings/media/i2c/tc358743.txt @@ -27,7 +27,7 @@ Documentation/devicetree/bindings/media/video-interfaces.txt. Example: - tc358743@0f { + tc358743@f { compatible = "toshiba,tc358743"; reg = <0x0f>; clocks = <&hdmi_osc>; diff --git a/Documentation/devicetree/bindings/media/img-ir-rev1.txt b/Documentation/devicetree/bindings/media/img-ir-rev1.txt index 5434ce61b925..ed9ec52b77e0 100644 --- a/Documentation/devicetree/bindings/media/img-ir-rev1.txt +++ b/Documentation/devicetree/bindings/media/img-ir-rev1.txt @@ -25,7 +25,7 @@ Optional properties: Example: - ir@02006200 { + ir@2006200 { compatible = "img,ir-rev1"; reg = <0x02006200 0x100>; interrupts = <29 4>; diff --git a/Documentation/devicetree/bindings/media/stih-cec.txt b/Documentation/devicetree/bindings/media/stih-cec.txt index 8be2a040c6c6..ece0832fdeaf 100644 --- a/Documentation/devicetree/bindings/media/stih-cec.txt +++ b/Documentation/devicetree/bindings/media/stih-cec.txt @@ -13,7 +13,7 @@ Required properties: Example for STIH407: -sti-cec@094a087c { +sti-cec@94a087c { compatible = "st,stih-cec"; reg = <0x94a087c 0x64>; clocks = <&clk_sysin>; diff --git a/Documentation/devicetree/bindings/media/stih407-c8sectpfe.txt b/Documentation/devicetree/bindings/media/stih407-c8sectpfe.txt index 6af3fc210ecc..c7888d6f6408 100644 --- a/Documentation/devicetree/bindings/media/stih407-c8sectpfe.txt +++ b/Documentation/devicetree/bindings/media/stih407-c8sectpfe.txt @@ -50,7 +50,7 @@ Example: /* stih410 SoC b2120 + b2004a + stv0367-pll(NIMB) + stv0367-tda18212 (NIMA) DT example) */ - c8sectpfe@08a20000 { + c8sectpfe@8a20000 { compatible = "st,stih407-c8sectpfe"; reg = <0x08a20000 0x10000>, <0x08a00000 0x4000>; reg-names = "stfe", "stfe-ram"; diff --git a/Documentation/devicetree/bindings/media/sunxi-ir.txt b/Documentation/devicetree/bindings/media/sunxi-ir.txt index 302a0b183cb8..91648c569b1e 100644 --- a/Documentation/devicetree/bindings/media/sunxi-ir.txt +++ b/Documentation/devicetree/bindings/media/sunxi-ir.txt @@ -14,7 +14,7 @@ Optional properties: Example: -ir0: ir@01c21800 { +ir0: ir@1c21800 { compatible = "allwinner,sun4i-a10-ir"; clocks = <&apb0_gates 6>, <&ir0_clk>; clock-names = "apb", "ir"; diff --git a/Documentation/devicetree/bindings/mfd/max77686.txt b/Documentation/devicetree/bindings/mfd/max77686.txt index 741e76688cf2..0f2587fa42cb 100644 --- a/Documentation/devicetree/bindings/mfd/max77686.txt +++ b/Documentation/devicetree/bindings/mfd/max77686.txt @@ -19,7 +19,7 @@ Required properties: Example: - max77686: pmic@09 { + max77686: pmic@9 { compatible = "maxim,max77686"; interrupt-parent = <&wakeup_eint>; interrupts = <26 0>; diff --git a/Documentation/devicetree/bindings/mfd/max77802.txt b/Documentation/devicetree/bindings/mfd/max77802.txt index 51fc1a60caa5..f2f3fe75901c 100644 --- a/Documentation/devicetree/bindings/mfd/max77802.txt +++ b/Documentation/devicetree/bindings/mfd/max77802.txt @@ -18,7 +18,7 @@ Required properties: Example: - max77802: pmic@09 { + max77802: pmic@9 { compatible = "maxim,max77802"; interrupt-parent = <&intc>; interrupts = <26 IRQ_TYPE_NONE>; diff --git a/Documentation/devicetree/bindings/mfd/mfd.txt b/Documentation/devicetree/bindings/mfd/mfd.txt index bcb6abb9d413..336c0495c8a3 100644 --- a/Documentation/devicetree/bindings/mfd/mfd.txt +++ b/Documentation/devicetree/bindings/mfd/mfd.txt @@ -41,7 +41,7 @@ foo@1000 { compatible = "syscon", "simple-mfd"; reg = <0x01000 0x1000>; - led@08.0 { + led@8.0 { compatible = "register-bit-led"; offset = <0x08>; mask = <0x01>; diff --git a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt index badff3611a98..86dd8191b04c 100644 --- a/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt +++ b/Documentation/devicetree/bindings/mfd/sun4i-gpadc.txt @@ -10,7 +10,7 @@ Required properties: - #io-channel-cells: shall be 0, Example: - ths: ths@01c25000 { + ths: ths@1c25000 { compatible = "allwinner,sun8i-a33-ths"; reg = <0x01c25000 0x100>; #thermal-sensor-cells = <0>; @@ -47,7 +47,7 @@ Optional properties: Example: - rtp: rtp@01c25000 { + rtp: rtp@1c25000 { compatible = "allwinner,sun4i-a10-ts"; reg = <0x01c25000 0x100>; interrupts = <29>; diff --git a/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt b/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt index 03c5a551da55..dd2c06540485 100644 --- a/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt +++ b/Documentation/devicetree/bindings/mfd/sun6i-prcm.txt @@ -15,7 +15,7 @@ The prcm node may contain several subdevices definitions: Example: - prcm: prcm@01f01400 { + prcm: prcm@1f01400 { compatible = "allwinner,sun6i-a31-prcm"; reg = <0x01f01400 0x200>; diff --git a/Documentation/devicetree/bindings/mfd/syscon.txt b/Documentation/devicetree/bindings/mfd/syscon.txt index 408f768686f1..8b92d4576c42 100644 --- a/Documentation/devicetree/bindings/mfd/syscon.txt +++ b/Documentation/devicetree/bindings/mfd/syscon.txt @@ -18,7 +18,7 @@ Optional property: performed on the device. Examples: -gpr: iomuxc-gpr@020e0000 { +gpr: iomuxc-gpr@20e0000 { compatible = "fsl,imx6q-iomuxc-gpr", "syscon"; reg = <0x020e0000 0x38>; }; diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index b32ade645ad9..5934157cf2cd 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -143,7 +143,7 @@ sdhci@ab000000 { Example with sdio function subnode: -mmc3: mmc@01c12000 { +mmc3: mmc@1c12000 { #address-cells = <1>; #size-cells = <0>; diff --git a/Documentation/devicetree/bindings/mmc/sdhci-st.txt b/Documentation/devicetree/bindings/mmc/sdhci-st.txt index e35645598315..6b3d40ca395e 100644 --- a/Documentation/devicetree/bindings/mmc/sdhci-st.txt +++ b/Documentation/devicetree/bindings/mmc/sdhci-st.txt @@ -74,7 +74,7 @@ mmc0: sdhci@fe81e000 { /* Example SD stih407 family configuration */ -mmc1: sdhci@09080000 { +mmc1: sdhci@9080000 { compatible = "st,sdhci-stih407", "st,sdhci"; reg = <0x09080000 0x7ff>; reg-names = "mmc"; @@ -90,7 +90,7 @@ mmc1: sdhci@09080000 { /* Example eMMC stih407 family configuration */ -mmc0: sdhci@09060000 { +mmc0: sdhci@9060000 { compatible = "st,sdhci-stih407", "st,sdhci"; reg = <0x09060000 0x7ff>, <0x9061008 0x20>; reg-names = "mmc", "top-mmc-delay"; diff --git a/Documentation/devicetree/bindings/mmc/sunxi-mmc.txt b/Documentation/devicetree/bindings/mmc/sunxi-mmc.txt index 63b57e2a10fb..132e0007d7d6 100644 --- a/Documentation/devicetree/bindings/mmc/sunxi-mmc.txt +++ b/Documentation/devicetree/bindings/mmc/sunxi-mmc.txt @@ -29,7 +29,7 @@ Optional properties: Examples: - Within .dtsi: - mmc0: mmc@01c0f000 { + mmc0: mmc@1c0f000 { compatible = "allwinner,sun5i-a13-mmc"; reg = <0x01c0f000 0x1000>; clocks = <&ahb_gates 8>, <&mmc0_clk>, <&mmc0_output_clk>, <&mmc0_sample_clk>; @@ -39,7 +39,7 @@ Examples: }; - Within dts: - mmc0: mmc@01c0f000 { + mmc0: mmc@1c0f000 { pinctrl-names = "default", "default"; pinctrl-0 = <&mmc0_pins_a>; pinctrl-1 = <&mmc0_cd_pin_reference_design>; diff --git a/Documentation/devicetree/bindings/mtd/sunxi-nand.txt b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt index a37c67bcb43b..5e13a5cdff03 100644 --- a/Documentation/devicetree/bindings/mtd/sunxi-nand.txt +++ b/Documentation/devicetree/bindings/mtd/sunxi-nand.txt @@ -31,7 +31,7 @@ see Documentation/devicetree/bindings/mtd/nand.txt for generic bindings. Examples: -nfc: nand@01c03000 { +nfc: nand@1c03000 { compatible = "allwinner,sun4i-a10-nand"; reg = <0x01c03000 0x1000>; interrupts = <0 37 1>; diff --git a/Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt b/Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt index 10640b17c866..e98118aef5f6 100644 --- a/Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt +++ b/Documentation/devicetree/bindings/net/allwinner,sun4i-emac.txt @@ -10,7 +10,7 @@ Required properties: Example: -emac: ethernet@01c0b000 { +emac: ethernet@1c0b000 { compatible = "allwinner,sun4i-a10-emac"; reg = <0x01c0b000 0x1000>; interrupts = <55>; diff --git a/Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt b/Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt index 4ec56413779d..ab5b8613b0ef 100644 --- a/Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt +++ b/Documentation/devicetree/bindings/net/allwinner,sun4i-mdio.txt @@ -9,7 +9,7 @@ Optional properties: - phy-supply: phandle to a regulator if the PHY needs one Example at the SoC level: -mdio@01c0b080 { +mdio@1c0b080 { compatible = "allwinner,sun4i-a10-mdio"; reg = <0x01c0b080 0x14>; #address-cells = <1>; @@ -18,7 +18,7 @@ mdio@01c0b080 { And at the board level: -mdio@01c0b080 { +mdio@1c0b080 { phy-supply = <®_emac_3v3>; phy0: ethernet-phy@0 { diff --git a/Documentation/devicetree/bindings/net/allwinner,sun7i-a20-gmac.txt b/Documentation/devicetree/bindings/net/allwinner,sun7i-a20-gmac.txt index ea4d752389a2..8b3f953656e3 100644 --- a/Documentation/devicetree/bindings/net/allwinner,sun7i-a20-gmac.txt +++ b/Documentation/devicetree/bindings/net/allwinner,sun7i-a20-gmac.txt @@ -15,7 +15,7 @@ Optional properties: Examples: - gmac: ethernet@01c50000 { + gmac: ethernet@1c50000 { compatible = "allwinner,sun7i-a20-gmac"; reg = <0x01c50000 0x10000>, <0x01c20164 0x4>; diff --git a/Documentation/devicetree/bindings/net/brcm,bcmgenet.txt b/Documentation/devicetree/bindings/net/brcm,bcmgenet.txt index 26c77d985faf..3956af1d30f3 100644 --- a/Documentation/devicetree/bindings/net/brcm,bcmgenet.txt +++ b/Documentation/devicetree/bindings/net/brcm,bcmgenet.txt @@ -109,7 +109,7 @@ ethernet@f0ba0000 { reg = <0xf0ba0000 0xfc4c>; interrupts = <0x0 0x18 0x0>, <0x0 0x19 0x0>; - mdio@0e14 { + mdio@e14 { compatible = "brcm,genet-mdio-v4"; #address-cells = <0x1>; #size-cells = <0x0>; diff --git a/Documentation/devicetree/bindings/net/can/m_can.txt b/Documentation/devicetree/bindings/net/can/m_can.txt index 78138333ff7a..63e90421d029 100644 --- a/Documentation/devicetree/bindings/net/can/m_can.txt +++ b/Documentation/devicetree/bindings/net/can/m_can.txt @@ -45,7 +45,7 @@ Required properties: Example: SoC dtsi: -m_can1: can@020e8000 { +m_can1: can@20e8000 { compatible = "bosch,m_can"; reg = <0x020e8000 0x4000>, <0x02298000 0x4000>; reg-names = "m_can", "message_ram"; diff --git a/Documentation/devicetree/bindings/net/can/sun4i_can.txt b/Documentation/devicetree/bindings/net/can/sun4i_can.txt index 84ed1909df76..f69845e6feaf 100644 --- a/Documentation/devicetree/bindings/net/can/sun4i_can.txt +++ b/Documentation/devicetree/bindings/net/can/sun4i_can.txt @@ -19,7 +19,7 @@ SoC common .dtsi file: allwinner,pull = <0>; }; ... - can0: can@01c2bc00 { + can0: can@1c2bc00 { compatible = "allwinner,sun4i-a10-can"; reg = <0x01c2bc00 0x400>; interrupts = <0 26 4>; @@ -29,7 +29,7 @@ SoC common .dtsi file: Board specific .dts file: - can0: can@01c2bc00 { + can0: can@1c2bc00 { pinctrl-names = "default"; pinctrl-0 = <&can0_pins_a>; status = "okay"; diff --git a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt index b2bd4704f859..86602f264dce 100644 --- a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt +++ b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt @@ -20,7 +20,7 @@ Optional properties: Example: -mmc3: mmc@01c12000 { +mmc3: mmc@1c12000 { #address-cells = <1>; #size-cells = <0>; diff --git a/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt b/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt index ef06d061913c..081c49c0dac0 100644 --- a/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt +++ b/Documentation/devicetree/bindings/nvmem/allwinner,sunxi-sid.txt @@ -13,13 +13,13 @@ Are child nodes of qfprom, bindings of which as described in bindings/nvmem/nvmem.txt Example for sun4i: - sid@01c23800 { + sid@1c23800 { compatible = "allwinner,sun4i-a10-sid"; reg = <0x01c23800 0x10> }; Example for sun7i: - sid@01c23800 { + sid@1c23800 { compatible = "allwinner,sun7i-a20-sid"; reg = <0x01c23800 0x200> }; diff --git a/Documentation/devicetree/bindings/nvmem/brcm,ocotp.txt b/Documentation/devicetree/bindings/nvmem/brcm,ocotp.txt index 6462e12d8de6..0415265c215a 100644 --- a/Documentation/devicetree/bindings/nvmem/brcm,ocotp.txt +++ b/Documentation/devicetree/bindings/nvmem/brcm,ocotp.txt @@ -10,7 +10,7 @@ Required Properties: Example: -otp: otp@0301c800 { +otp: otp@301c800 { compatible = "brcm,ocotp"; reg = <0x0301c800 0x2c>; brcm,ocotp-size = <2048>; diff --git a/Documentation/devicetree/bindings/nvmem/imx-ocotp.txt b/Documentation/devicetree/bindings/nvmem/imx-ocotp.txt index 70d791b03ea1..f162c72b4e36 100644 --- a/Documentation/devicetree/bindings/nvmem/imx-ocotp.txt +++ b/Documentation/devicetree/bindings/nvmem/imx-ocotp.txt @@ -19,7 +19,7 @@ Optional properties: Example: - ocotp: ocotp@021bc000 { + ocotp: ocotp@21bc000 { compatible = "fsl,imx6q-ocotp", "syscon"; reg = <0x021bc000 0x4000>; clocks = <&clks IMX6QDL_CLK_IIM>; diff --git a/Documentation/devicetree/bindings/nvmem/nvmem.txt b/Documentation/devicetree/bindings/nvmem/nvmem.txt index b52bc11e9597..fd06c09b822b 100644 --- a/Documentation/devicetree/bindings/nvmem/nvmem.txt +++ b/Documentation/devicetree/bindings/nvmem/nvmem.txt @@ -33,7 +33,7 @@ bits: Is pair of bit location and number of bits, which specifies offset For example: /* Provider */ - qfprom: qfprom@00700000 { + qfprom: qfprom@700000 { ... /* Data cells */ diff --git a/Documentation/devicetree/bindings/nvmem/qfprom.txt b/Documentation/devicetree/bindings/nvmem/qfprom.txt index 4ad68b7f5c18..26fe878d5c86 100644 --- a/Documentation/devicetree/bindings/nvmem/qfprom.txt +++ b/Documentation/devicetree/bindings/nvmem/qfprom.txt @@ -12,7 +12,7 @@ bindings/nvmem/nvmem.txt Example: - qfprom: qfprom@00700000 { + qfprom: qfprom@700000 { compatible = "qcom,qfprom"; reg = <0x00700000 0x8000>; ... diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt index 982a74ea6df9..1b4d2803dad1 100644 --- a/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt +++ b/Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt @@ -255,7 +255,7 @@ Tegra30: SoC DTSI: - pcie-controller@00003000 { + pcie-controller@3000 { compatible = "nvidia,tegra30-pcie"; device_type = "pci"; reg = <0x00003000 0x00000800 /* PADS registers */ @@ -334,7 +334,7 @@ SoC DTSI: Board DTS: - pcie-controller@00003000 { + pcie-controller@3000 { status = "okay"; avdd-pexa-supply = <&ldo1_reg>; @@ -360,7 +360,7 @@ Tegra124: SoC DTSI: - pcie-controller@01003000 { + pcie-controller@1003000 { compatible = "nvidia,tegra124-pcie"; device_type = "pci"; reg = <0x0 0x01003000 0x0 0x00000800 /* PADS registers */ @@ -425,7 +425,7 @@ SoC DTSI: Board DTS: - pcie-controller@01003000 { + pcie-controller@1003000 { status = "okay"; avddio-pex-supply = <&vdd_1v05_run>; @@ -456,7 +456,7 @@ Tegra210: SoC DTSI: - pcie-controller@01003000 { + pcie-controller@1003000 { compatible = "nvidia,tegra210-pcie"; device_type = "pci"; reg = <0x0 0x01003000 0x0 0x00000800 /* PADS registers */ @@ -521,7 +521,7 @@ SoC DTSI: Board DTS: - pcie-controller@01003000 { + pcie-controller@1003000 { status = "okay"; avdd-pll-uerefe-supply = <&avdd_1v05_pll>; diff --git a/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt b/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt index 761c4bc24a9b..10efff28b52b 100644 --- a/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt +++ b/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.txt @@ -15,7 +15,7 @@ Required properties For the child node: - #phy-cells: must be 0 Example: - pcie_phy: phy@0301d0a0 { + pcie_phy: phy@301d0a0 { compatible = "brcm,cygnus-pcie-phy"; reg = <0x0301d0a0 0x14>; diff --git a/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt b/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt index 1d25b04cd05e..6ac98b3b5f57 100644 --- a/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt +++ b/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt @@ -23,7 +23,7 @@ Optional properties: the 17.78mA TX reference current. Default: 100 Example: -usbphy1: usbphy@020c9000 { +usbphy1: usbphy@20c9000 { compatible = "fsl,imx6q-usbphy", "fsl,imx23-usbphy"; reg = <0x020c9000 0x1000>; interrupts = <0 44 0x04>; diff --git a/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt b/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt index f9853156e311..64f7109aea1f 100644 --- a/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt +++ b/Documentation/devicetree/bindings/phy/sun9i-usb-phy.txt @@ -25,7 +25,7 @@ It is recommended to list all clocks and resets available. The driver will only use those matching the phy_type. Example: - usbphy1: phy@00a01800 { + usbphy1: phy@a01800 { compatible = "allwinner,sun9i-a80-usb-phy"; reg = <0x00a01800 0x4>; clocks = <&usb_phy_clk 2>, <&usb_phy_clk 10>, diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt index 6f2ec9af0de2..09789fdfa749 100644 --- a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt @@ -89,7 +89,7 @@ Optional subnode-properties: Examples: -pio: pinctrl@01c20800 { +pio: pinctrl@1c20800 { compatible = "allwinner,sun5i-a13-pinctrl"; reg = <0x01c20800 0x400>; #address-cells = <1>; diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt index 42d74f8a1bcc..a1050b5982ec 100644 --- a/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt @@ -58,14 +58,14 @@ Some requirements for using fsl,imx-pinctrl binding: configurations by referring to the phandle of that pin configuration node. Examples: -usdhc@0219c000 { /* uSDHC4 */ +usdhc@219c000 { /* uSDHC4 */ non-removable; vmmc-supply = <®_3p3v>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usdhc4_1>; }; -iomuxc@020e0000 { +iomuxc@20e0000 { compatible = "fsl,imx6q-iomuxc"; reg = <0x020e0000 0x4000>; diff --git a/Documentation/devicetree/bindings/pinctrl/img,tz1090-pdc-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/img,tz1090-pdc-pinctrl.txt index 51b943cc9770..cf9ccdff4455 100644 --- a/Documentation/devicetree/bindings/pinctrl/img,tz1090-pdc-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/img,tz1090-pdc-pinctrl.txt @@ -89,7 +89,7 @@ Valid values for pin and group names are: Example: - pinctrl_pdc: pinctrl@02006500 { + pinctrl_pdc: pinctrl@2006500 { #gpio-range-cells = <3>; compatible = "img,tz1090-pdc-pinctrl"; reg = <0x02006500 0x100>; @@ -121,7 +121,7 @@ Example board file extracts: }; }; - ir: ir@02006200 { + ir: ir@2006200 { pinctrl-names = "default"; pinctrl-0 = <&irmod_default>; }; diff --git a/Documentation/devicetree/bindings/pinctrl/img,tz1090-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/img,tz1090-pinctrl.txt index 509faa87ad0e..2dfd9a3fc1e4 100644 --- a/Documentation/devicetree/bindings/pinctrl/img,tz1090-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/img,tz1090-pinctrl.txt @@ -197,7 +197,7 @@ Valid values for pin and group names are: Example: - pinctrl: pinctrl@02005800 { + pinctrl: pinctrl@2005800 { #gpio-range-cells = <3>; compatible = "img,tz1090-pinctrl"; reg = <0x02005800 0xe4>; @@ -221,7 +221,7 @@ Example board file extract: }; }; - uart@02004b00 { + uart@2004b00 { pinctrl-names = "default"; pinctrl-0 = <&uart0_default>; }; diff --git a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-xusb-padctl.txt b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-xusb-padctl.txt index 4048f43a9d29..02e971c39d81 100644 --- a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-xusb-padctl.txt +++ b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-xusb-padctl.txt @@ -97,7 +97,7 @@ SoC file extract: Board file extract: ------------------- - pcie-controller@01003000 { + pcie-controller@1003000 { ... phys = <&padctl 0>; diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt65xx.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt65xx.txt index 37d744750579..231fa1db7c5e 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt65xx.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt65xx.txt @@ -86,7 +86,7 @@ Examples: reg = <0 0x1020C020 0 0x1000>; }; - pinctrl@01c20800 { + pinctrl@1c20800 { compatible = "mediatek,mt8135-pinctrl"; reg = <0 0x1000B000 0 0x1000>; mediatek,pctl-regmap = <&syscfg_pctl_a &syscfg_pctl_b>; diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt index 013c675b5b64..48b9be48af18 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt @@ -89,7 +89,7 @@ Example: interrupt-names = "irqmux"; ranges = <0 0x09610000 0x6000>; - pio0: gpio@09610000 { + pio0: gpio@9610000 { gpio-controller; #gpio-cells = <2>; interrupt-controller; diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,msm8996-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/qcom,msm8996-pinctrl.txt index e312a71b2f94..aaf01e929eea 100644 --- a/Documentation/devicetree/bindings/pinctrl/qcom,msm8996-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/qcom,msm8996-pinctrl.txt @@ -175,7 +175,7 @@ to specify in a pin configuration subnode: Example: - tlmm: pinctrl@01010000 { + tlmm: pinctrl@1010000 { compatible = "qcom,msm8996-pinctrl"; reg = <0x01010000 0x300000>; interrupts = <0 208 0>; diff --git a/Documentation/devicetree/bindings/power/fsl,imx-gpc.txt b/Documentation/devicetree/bindings/power/fsl,imx-gpc.txt index 6c1498958d48..e371b262d709 100644 --- a/Documentation/devicetree/bindings/power/fsl,imx-gpc.txt +++ b/Documentation/devicetree/bindings/power/fsl,imx-gpc.txt @@ -40,7 +40,7 @@ Optional properties: Example: - gpc: gpc@020dc000 { + gpc: gpc@20dc000 { compatible = "fsl,imx6q-gpc"; reg = <0x020dc000 0x4000>; interrupts = <0 89 IRQ_TYPE_LEVEL_HIGH>, @@ -80,7 +80,7 @@ that is a phandle pointing to the power domain the device belongs to. Example of a device that is part of the PU power domain: - vpu: vpu@02040000 { + vpu: vpu@2040000 { reg = <0x02040000 0x3c000>; /* ... */ power-domains = <&pd_pu>; diff --git a/Documentation/devicetree/bindings/power/reset/imx-snvs-poweroff.txt b/Documentation/devicetree/bindings/power/reset/imx-snvs-poweroff.txt index dc7c9bad63ea..1b81fcd9fb72 100644 --- a/Documentation/devicetree/bindings/power/reset/imx-snvs-poweroff.txt +++ b/Documentation/devicetree/bindings/power/reset/imx-snvs-poweroff.txt @@ -10,7 +10,7 @@ Required Properties: -reg: Specifies the physical address of the SNVS_LPCR register Example: - snvs@020cc000 { + snvs@20cc000 { compatible = "fsl,sec-v4.0-mon", "simple-bus"; #address-cells = <1>; #size-cells = <1>; diff --git a/Documentation/devicetree/bindings/power/reset/keystone-reset.txt b/Documentation/devicetree/bindings/power/reset/keystone-reset.txt index c82f12e2d85c..c5c03789ed1e 100644 --- a/Documentation/devicetree/bindings/power/reset/keystone-reset.txt +++ b/Documentation/devicetree/bindings/power/reset/keystone-reset.txt @@ -37,12 +37,12 @@ Example 1: Setup keystone reset so that in case software reset or WDT0 is triggered it issues hard reset for SoC. -pllctrl: pll-controller@02310000 { +pllctrl: pll-controller@2310000 { compatible = "ti,keystone-pllctrl", "syscon"; reg = <0x02310000 0x200>; }; -devctrl: device-state-control@02620000 { +devctrl: device-state-control@2620000 { compatible = "ti,keystone-devctrl", "syscon"; reg = <0x02620000 0x1000>; }; diff --git a/Documentation/devicetree/bindings/powerpc/fsl/mcu-mpc8349emitx.txt b/Documentation/devicetree/bindings/powerpc/fsl/mcu-mpc8349emitx.txt index 0f766333b6eb..37f91fa57654 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/mcu-mpc8349emitx.txt +++ b/Documentation/devicetree/bindings/powerpc/fsl/mcu-mpc8349emitx.txt @@ -8,7 +8,7 @@ Required properties: Example: -mcu@0a { +mcu@a { #gpio-cells = <2>; compatible = "fsl,mc9s08qg8-mpc8349emitx", "fsl,mcu-mpc8349emitx"; diff --git a/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt b/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt index c5171660eaf9..51ff54c8b8ef 100644 --- a/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt +++ b/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt @@ -14,7 +14,7 @@ Required properties: Example: - pwm: pwm@01c20e00 { + pwm: pwm@1c20e00 { compatible = "allwinner,sun7i-a20-pwm"; reg = <0x01c20e00 0xc>; clocks = <&osc24M>; diff --git a/Documentation/devicetree/bindings/regulator/max77686.txt b/Documentation/devicetree/bindings/regulator/max77686.txt index 0dded64d89d3..e9f7578ca09a 100644 --- a/Documentation/devicetree/bindings/regulator/max77686.txt +++ b/Documentation/devicetree/bindings/regulator/max77686.txt @@ -40,7 +40,7 @@ to get matched with their hardware counterparts as follow: Example: - max77686: pmic@09 { + max77686: pmic@9 { compatible = "maxim,max77686"; interrupt-parent = <&wakeup_eint>; interrupts = <26 IRQ_TYPE_NONE>; diff --git a/Documentation/devicetree/bindings/regulator/max77802.txt b/Documentation/devicetree/bindings/regulator/max77802.txt index 879e98d3b9aa..b82943d83677 100644 --- a/Documentation/devicetree/bindings/regulator/max77802.txt +++ b/Documentation/devicetree/bindings/regulator/max77802.txt @@ -71,7 +71,7 @@ has not been disabled for that state using "regulator-off-in-suspend". Example: - max77802@09 { + max77802@9 { compatible = "maxim,max77802"; interrupt-parent = <&wakeup_eint>; interrupts = <26 0>; diff --git a/Documentation/devicetree/bindings/reset/allwinner,sunxi-clock-reset.txt b/Documentation/devicetree/bindings/reset/allwinner,sunxi-clock-reset.txt index c8f775714887..4ca66c96fe97 100644 --- a/Documentation/devicetree/bindings/reset/allwinner,sunxi-clock-reset.txt +++ b/Documentation/devicetree/bindings/reset/allwinner,sunxi-clock-reset.txt @@ -14,7 +14,7 @@ Required properties: example: -ahb1_rst: reset@01c202c0 { +ahb1_rst: reset@1c202c0 { #reset-cells = <1>; compatible = "allwinner,sun6i-a31-ahb1-reset"; reg = <0x01c202c0 0xc>; diff --git a/Documentation/devicetree/bindings/reset/fsl,imx-src.txt b/Documentation/devicetree/bindings/reset/fsl,imx-src.txt index 13301777e11c..6ed79e60248a 100644 --- a/Documentation/devicetree/bindings/reset/fsl,imx-src.txt +++ b/Documentation/devicetree/bindings/reset/fsl,imx-src.txt @@ -14,7 +14,7 @@ Required properties: example: -src: src@020d8000 { +src: src@20d8000 { compatible = "fsl,imx6q-src"; reg = <0x020d8000 0x4000>; interrupts = <0 91 0x04 0 96 0x04>; @@ -33,10 +33,10 @@ reset.txt example: - ipu1: ipu@02400000 { + ipu1: ipu@2400000 { resets = <&src 2>; }; - ipu2: ipu@02800000 { + ipu2: ipu@2800000 { resets = <&src 4>; }; diff --git a/Documentation/devicetree/bindings/reset/ti-syscon-reset.txt b/Documentation/devicetree/bindings/reset/ti-syscon-reset.txt index c516d24959f2..86945502ccb5 100644 --- a/Documentation/devicetree/bindings/reset/ti-syscon-reset.txt +++ b/Documentation/devicetree/bindings/reset/ti-syscon-reset.txt @@ -67,7 +67,7 @@ using the syscon node, and a consumer (a DSP device) on the TI Keystone 2 / { soc { - psc: power-sleep-controller@02350000 { + psc: power-sleep-controller@2350000 { compatible = "syscon", "simple-mfd"; reg = <0x02350000 0x1000>; diff --git a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt index d5e26d313f62..12c083c1140a 100644 --- a/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt +++ b/Documentation/devicetree/bindings/rtc/sun6i-rtc.txt @@ -17,7 +17,7 @@ Required properties for new device trees Example: -rtc: rtc@01f00000 { +rtc: rtc@1f00000 { compatible = "allwinner,sun6i-a31-rtc"; reg = <0x01f00000 0x54>; interrupts = <0 40 4>, <0 41 4>; diff --git a/Documentation/devicetree/bindings/rtc/sunxi-rtc.txt b/Documentation/devicetree/bindings/rtc/sunxi-rtc.txt index 6983aad376c3..4a8d79c1cf08 100644 --- a/Documentation/devicetree/bindings/rtc/sunxi-rtc.txt +++ b/Documentation/devicetree/bindings/rtc/sunxi-rtc.txt @@ -10,7 +10,7 @@ Required properties: Example: -rtc: rtc@01c20d00 { +rtc: rtc@1c20d00 { compatible = "allwinner,sun4i-a10-rtc"; reg = <0x01c20d00 0x20>; interrupts = <24>; diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/par_io.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/par_io.txt index 60984260207b..09b1b05fa677 100644 --- a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/par_io.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/par_io.txt @@ -18,7 +18,7 @@ par_io@1400 { #size-cells = <0>; device_type = "par_io"; num-ports = <7>; - ucc_pin@01 { + ucc_pin@1 { ...... }; diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/pincfg.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/pincfg.txt index ec6ee2e864a2..5bde8b98a8c9 100644 --- a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/pincfg.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/pincfg.txt @@ -26,7 +26,7 @@ Required properties: interrupts. Example: - ucc_pin@01 { + ucc_pin@1 { pio-map = < /* port pin dir open_drain assignment has_irq */ 0 3 1 0 1 0 /* TxD0 */ diff --git a/Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt b/Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt index 66e6265fb0aa..f7b00a7c0f68 100644 --- a/Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt +++ b/Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt @@ -51,7 +51,7 @@ of valid identifiers for k2g. Example (K2G): -------------------- - uart0: serial@02530c00 { + uart0: serial@2530c00 { compatible = "ns16550a"; ... power-domains = <&k2g_pds 0x002c>; diff --git a/Documentation/devicetree/bindings/sound/cdns,xtfpga-i2s.txt b/Documentation/devicetree/bindings/sound/cdns,xtfpga-i2s.txt index befd125d18bb..860fc0da39c0 100644 --- a/Documentation/devicetree/bindings/sound/cdns,xtfpga-i2s.txt +++ b/Documentation/devicetree/bindings/sound/cdns,xtfpga-i2s.txt @@ -9,7 +9,7 @@ Required properties: Examples: - i2s0: xtfpga-i2s@0d080000 { + i2s0: xtfpga-i2s@d080000 { #sound-dai-cells = <0>; compatible = "cdns,xtfpga-i2s"; reg = <0x0d080000 0x40>; diff --git a/Documentation/devicetree/bindings/sound/fsl,asrc.txt b/Documentation/devicetree/bindings/sound/fsl,asrc.txt index 65979b205893..f5a14115b459 100644 --- a/Documentation/devicetree/bindings/sound/fsl,asrc.txt +++ b/Documentation/devicetree/bindings/sound/fsl,asrc.txt @@ -41,7 +41,7 @@ Required properties: Example: -asrc: asrc@02034000 { +asrc: asrc@2034000 { compatible = "fsl,imx53-asrc"; reg = <0x02034000 0x4000>; interrupts = <0 50 IRQ_TYPE_LEVEL_HIGH>; diff --git a/Documentation/devicetree/bindings/sound/fsl,esai.txt b/Documentation/devicetree/bindings/sound/fsl,esai.txt index 21c401e2ccda..cacd18bb9ba6 100644 --- a/Documentation/devicetree/bindings/sound/fsl,esai.txt +++ b/Documentation/devicetree/bindings/sound/fsl,esai.txt @@ -48,7 +48,7 @@ Required properties: Example: -esai: esai@02024000 { +esai: esai@2024000 { compatible = "fsl,imx35-esai"; reg = <0x02024000 0x4000>; interrupts = <0 51 0x04>; diff --git a/Documentation/devicetree/bindings/sound/fsl,spdif.txt b/Documentation/devicetree/bindings/sound/fsl,spdif.txt index 0f97e54c3d43..38cfa7573441 100644 --- a/Documentation/devicetree/bindings/sound/fsl,spdif.txt +++ b/Documentation/devicetree/bindings/sound/fsl,spdif.txt @@ -39,7 +39,7 @@ Required properties: Example: -spdif: spdif@02004000 { +spdif: spdif@2004000 { compatible = "fsl,imx35-spdif"; reg = <0x02004000 0x4000>; interrupts = <0 52 0x04>; diff --git a/Documentation/devicetree/bindings/sound/imx-audmux.txt b/Documentation/devicetree/bindings/sound/imx-audmux.txt index b30a737e209e..2db4dcbee1b9 100644 --- a/Documentation/devicetree/bindings/sound/imx-audmux.txt +++ b/Documentation/devicetree/bindings/sound/imx-audmux.txt @@ -22,7 +22,7 @@ Required properties of optional child nodes: Example: -audmux@021d8000 { +audmux@21d8000 { compatible = "fsl,imx6q-audmux", "fsl,imx31-audmux"; reg = <0x021d8000 0x4000>; }; diff --git a/Documentation/devicetree/bindings/sound/samsung-i2s.txt b/Documentation/devicetree/bindings/sound/samsung-i2s.txt index 09e0e18591ae..bf100cd0d0f7 100644 --- a/Documentation/devicetree/bindings/sound/samsung-i2s.txt +++ b/Documentation/devicetree/bindings/sound/samsung-i2s.txt @@ -63,7 +63,7 @@ Optional SoC Specific Properties: Example: -i2s0: i2s@03830000 { +i2s0: i2s@3830000 { compatible = "samsung,s5pv210-i2s"; reg = <0x03830000 0x100>; dmas = <&pdma0 10 diff --git a/Documentation/devicetree/bindings/sound/sun4i-codec.txt b/Documentation/devicetree/bindings/sound/sun4i-codec.txt index 2d4e10deb6f4..66579bbd3294 100644 --- a/Documentation/devicetree/bindings/sound/sun4i-codec.txt +++ b/Documentation/devicetree/bindings/sound/sun4i-codec.txt @@ -62,7 +62,7 @@ Required properties for the following compatibles: block in the PRCM. Example: -codec: codec@01c22c00 { +codec: codec@1c22c00 { #sound-dai-cells = <0>; compatible = "allwinner,sun7i-a20-codec"; reg = <0x01c22c00 0x40>; @@ -73,7 +73,7 @@ codec: codec@01c22c00 { dma-names = "rx", "tx"; }; -codec: codec@01c22c00 { +codec: codec@1c22c00 { #sound-dai-cells = <0>; compatible = "allwinner,sun6i-a31-codec"; reg = <0x01c22c00 0x98>; diff --git a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt index fc5da6080759..05d7135a8d2f 100644 --- a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt +++ b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt @@ -28,7 +28,7 @@ Required properties for the following compatibles: Example: -i2s0: i2s@01c22400 { +i2s0: i2s@1c22400 { #sound-dai-cells = <0>; compatible = "allwinner,sun4i-a10-i2s"; reg = <0x01c22400 0x400>; diff --git a/Documentation/devicetree/bindings/sound/sun8i-a33-codec.txt b/Documentation/devicetree/bindings/sound/sun8i-a33-codec.txt index 399b1b4bae22..2ca3d138528e 100644 --- a/Documentation/devicetree/bindings/sound/sun8i-a33-codec.txt +++ b/Documentation/devicetree/bindings/sound/sun8i-a33-codec.txt @@ -48,7 +48,7 @@ are similar to A33 using simple-card: sound-dai = <&codec>; }; - soc@01c00000 { + soc@1c00000 { [...] audio-codec@1c22e00 { diff --git a/Documentation/devicetree/bindings/sound/sun8i-codec-analog.txt b/Documentation/devicetree/bindings/sound/sun8i-codec-analog.txt index 1b6e7c4e50ab..07356758bd91 100644 --- a/Documentation/devicetree/bindings/sound/sun8i-codec-analog.txt +++ b/Documentation/devicetree/bindings/sound/sun8i-codec-analog.txt @@ -10,7 +10,7 @@ Required properties if not a sub-node of the PRCM node: - reg: must contain the registers location and length Example: -prcm: prcm@01f01400 { +prcm: prcm@1f01400 { codec_analog: codec-analog { compatible = "allwinner,sun8i-a23-codec-analog"; }; diff --git a/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt b/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt index 70ee177901d3..0c64a209c2e9 100644 --- a/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt +++ b/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt @@ -31,7 +31,7 @@ Required properties: Example: -spdif: spdif@01c21000 { +spdif: spdif@1c21000 { compatible = "allwinner,sun4i-a10-spdif"; reg = <0x01c21000 0x40>; interrupts = <13>; diff --git a/Documentation/devicetree/bindings/sound/zte,zx-spdif.txt b/Documentation/devicetree/bindings/sound/zte,zx-spdif.txt index b5a5ca4502f9..09231d7586b2 100644 --- a/Documentation/devicetree/bindings/sound/zte,zx-spdif.txt +++ b/Documentation/devicetree/bindings/sound/zte,zx-spdif.txt @@ -16,7 +16,7 @@ please check: * dma/dma.txt Example: - spdif0: spdif0@0b004000 { + spdif0: spdif0@b004000 { compatible = "zte,zx296702-spdif"; reg = <0x0b004000 0x1000>; clocks = <&lsp0clk ZX296702_SPDIF0_DIV>; diff --git a/Documentation/devicetree/bindings/spi/spi-sun4i.txt b/Documentation/devicetree/bindings/spi/spi-sun4i.txt index 484bbff5337e..c75d604a8290 100644 --- a/Documentation/devicetree/bindings/spi/spi-sun4i.txt +++ b/Documentation/devicetree/bindings/spi/spi-sun4i.txt @@ -12,7 +12,7 @@ Required properties: Example: -spi1: spi@01c06000 { +spi1: spi@1c06000 { compatible = "allwinner,sun4i-a10-spi"; reg = <0x01c06000 0x1000>; interrupts = <11>; diff --git a/Documentation/devicetree/bindings/spi/spi-sun6i.txt b/Documentation/devicetree/bindings/spi/spi-sun6i.txt index ab1811354cce..435a8e0731ac 100644 --- a/Documentation/devicetree/bindings/spi/spi-sun6i.txt +++ b/Documentation/devicetree/bindings/spi/spi-sun6i.txt @@ -19,7 +19,7 @@ Optional properties: Example: -spi1: spi@01c69000 { +spi1: spi@1c69000 { compatible = "allwinner,sun6i-a31-spi"; reg = <0x01c69000 0x1000>; interrupts = <0 66 4>; @@ -28,7 +28,7 @@ spi1: spi@01c69000 { resets = <&ahb1_rst 21>; }; -spi0: spi@01c68000 { +spi0: spi@1c68000 { compatible = "allwinner,sun8i-h3-spi"; reg = <0x01c68000 0x1000>; interrupts = ; diff --git a/Documentation/devicetree/bindings/sram/samsung-sram.txt b/Documentation/devicetree/bindings/sram/samsung-sram.txt index 6bc474b2b885..61a9bbed303d 100644 --- a/Documentation/devicetree/bindings/sram/samsung-sram.txt +++ b/Documentation/devicetree/bindings/sram/samsung-sram.txt @@ -19,7 +19,7 @@ found in Documentation/devicetree/bindings/sram/sram.txt Example: - sysram@02020000 { + sysram@2020000 { compatible = "mmio-sram"; reg = <0x02020000 0x54000>; #address-cells = <1>; diff --git a/Documentation/devicetree/bindings/sram/sunxi-sram.txt b/Documentation/devicetree/bindings/sram/sunxi-sram.txt index 6bb92a1df753..d087f04a4d7f 100644 --- a/Documentation/devicetree/bindings/sram/sunxi-sram.txt +++ b/Documentation/devicetree/bindings/sram/sunxi-sram.txt @@ -47,7 +47,7 @@ This valid values for this argument are: Example ------- -sram-controller@01c00000 { +sram-controller@1c00000 { compatible = "allwinner,sun4i-a10-sram-controller"; reg = <0x01c00000 0x30>; #address-cells = <1>; @@ -68,7 +68,7 @@ sram-controller@01c00000 { }; }; -emac: ethernet@01c0b000 { +emac: ethernet@1c0b000 { compatible = "allwinner,sun4i-a10-emac"; ... diff --git a/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.txt b/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.txt index 8d6e4fd2468e..2c5c1be78360 100644 --- a/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.txt +++ b/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.txt @@ -14,7 +14,7 @@ Optional properties: Example: -timer@01c60000 { +timer@1c60000 { compatible = "allwinner,sun7i-a20-hstimer"; reg = <0x01c60000 0x1000>; interrupts = <0 51 1>, diff --git a/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.txt b/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.txt index cb2bd83fa89a..50abb20fe319 100644 --- a/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.txt +++ b/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.txt @@ -16,7 +16,7 @@ Required properties: Example: - usb_otg: usb@01c13000 { + usb_otg: usb@1c13000 { compatible = "allwinner,sun4i-a10-musb"; reg = <0x01c13000 0x0400>; clocks = <&ahb_gates 0>; diff --git a/Documentation/devicetree/bindings/usb/am33xx-usb.txt b/Documentation/devicetree/bindings/usb/am33xx-usb.txt index 16920d78e1b8..7a33f22c815a 100644 --- a/Documentation/devicetree/bindings/usb/am33xx-usb.txt +++ b/Documentation/devicetree/bindings/usb/am33xx-usb.txt @@ -181,7 +181,7 @@ usb: usb@47400000 { "tx14", "tx15"; }; - cppi41dma: dma-controller@07402000 { + cppi41dma: dma-controller@7402000 { compatible = "ti,am3359-cppi41"; reg = <0x47400000 0x1000 0x47402000 0x1000 diff --git a/Documentation/devicetree/bindings/usb/atmel-usb.txt b/Documentation/devicetree/bindings/usb/atmel-usb.txt index ad8ea56a9ed3..44e80153b148 100644 --- a/Documentation/devicetree/bindings/usb/atmel-usb.txt +++ b/Documentation/devicetree/bindings/usb/atmel-usb.txt @@ -18,7 +18,7 @@ Required properties: - atmel,oc-gpio: If present, specifies a gpio that needs to be activated for the overcurrent detection. -usb0: ohci@00500000 { +usb0: ohci@500000 { compatible = "atmel,at91rm9200-ohci", "usb-ohci"; reg = <0x00500000 0x100000>; clocks = <&uhphs_clk>, <&uhphs_clk>, <&uhpck>; @@ -39,7 +39,7 @@ Required properties: "ehci_clk" for the peripheral clock "usb_clk" for the UTMI clock -usb1: ehci@00800000 { +usb1: ehci@800000 { compatible = "atmel,at91sam9g45-ehci", "usb-ehci"; reg = <0x00800000 0x100000>; interrupts = <22 4>; diff --git a/Documentation/devicetree/bindings/usb/ohci-da8xx.txt b/Documentation/devicetree/bindings/usb/ohci-da8xx.txt index 2dc8f67eda39..24a826d5015e 100644 --- a/Documentation/devicetree/bindings/usb/ohci-da8xx.txt +++ b/Documentation/devicetree/bindings/usb/ohci-da8xx.txt @@ -13,7 +13,7 @@ Optional properties: Example: -ohci: usb@0225000 { +ohci: usb@225000 { compatible = "ti,da830-ohci"; reg = <0x225000 0x1000>; interrupts = <59>; diff --git a/Documentation/devicetree/bindings/usb/usb-ehci.txt b/Documentation/devicetree/bindings/usb/usb-ehci.txt index a12d6012a40f..3efde12b5d68 100644 --- a/Documentation/devicetree/bindings/usb/usb-ehci.txt +++ b/Documentation/devicetree/bindings/usb/usb-ehci.txt @@ -30,7 +30,7 @@ Example (Sequoia 440EPx): }; Example (Allwinner sun4i A10 SoC): - ehci0: usb@01c14000 { + ehci0: usb@1c14000 { compatible = "allwinner,sun4i-a10-ehci", "generic-ehci"; reg = <0x01c14000 0x100>; interrupts = <39>; diff --git a/Documentation/devicetree/bindings/usb/usb-ohci.txt b/Documentation/devicetree/bindings/usb/usb-ohci.txt index e8766b08c93b..09e70c875bc6 100644 --- a/Documentation/devicetree/bindings/usb/usb-ohci.txt +++ b/Documentation/devicetree/bindings/usb/usb-ohci.txt @@ -19,7 +19,7 @@ Optional properties: Example: - ohci0: usb@01c14400 { + ohci0: usb@1c14400 { compatible = "allwinner,sun4i-a10-ohci", "generic-ohci"; reg = <0x01c14400 0x100>; interrupts = <64>; diff --git a/Documentation/devicetree/bindings/usb/usb3503.txt b/Documentation/devicetree/bindings/usb/usb3503.txt index c1a0a9191d26..057dd384d473 100644 --- a/Documentation/devicetree/bindings/usb/usb3503.txt +++ b/Documentation/devicetree/bindings/usb/usb3503.txt @@ -26,7 +26,7 @@ Optional properties: clock frequencies table is used) Examples: - usb3503@08 { + usb3503@8 { compatible = "smsc,usb3503"; reg = <0x08>; connect-gpios = <&gpx3 0 1>; diff --git a/Documentation/devicetree/bindings/usb/usbmisc-imx.txt b/Documentation/devicetree/bindings/usb/usbmisc-imx.txt index f1e27faf528e..a85a631ec434 100644 --- a/Documentation/devicetree/bindings/usb/usbmisc-imx.txt +++ b/Documentation/devicetree/bindings/usb/usbmisc-imx.txt @@ -10,7 +10,7 @@ Required properties: - reg: Should contain registers location and length Examples: -usbmisc@02184800 { +usbmisc@2184800 { #index-cells = <1>; compatible = "fsl,imx6q-usbmisc"; reg = <0x02184800 0x200>; diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt index 235de0683bb6..5b38a30e608c 100644 --- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt @@ -13,7 +13,7 @@ Required properties: Example: -wdt: watchdog@010000000 { +wdt: watchdog@10000000 { compatible = "mediatek,mt6589-wdt"; reg = <0x10000000 0x18>; }; diff --git a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt b/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt index b8f75c51453a..62dd5baad70e 100644 --- a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt @@ -8,7 +8,7 @@ Required properties: Example: -wdt: watchdog@01c20c90 { +wdt: watchdog@1c20c90 { compatible = "allwinner,sun4i-a10-wdt"; reg = <0x01c20c90 0x10>; }; -- cgit v1.2.3 From bd94e7aea40387524b1d6c76b09785f5c3319116 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 27 Oct 2017 15:28:52 +0100 Subject: KVM: arm/arm64: GICv4: Prevent a VM using GICv4 from being saved The GICv4 architecture doesn't make it easy for save/restore to work, as it doesn't give any guarantee that the pending state is written into the pending table. So let's not take any chance, and let's return an error if we encounter any LPI that has the HW bit set. In order for userspace to distinguish this error from other failure modes, use -EACCES as an error code. Reviewed-by: Eric Auger Signed-off-by: Marc Zyngier Signed-off-by: Christoffer Dall --- Documentation/virtual/kvm/devices/arm-vgic-its.txt | 2 ++ virt/kvm/arm/vgic/vgic-its.c | 9 +++++++++ 2 files changed, 11 insertions(+) (limited to 'Documentation') diff --git a/Documentation/virtual/kvm/devices/arm-vgic-its.txt b/Documentation/virtual/kvm/devices/arm-vgic-its.txt index 8d5830eab26a..4f0c9fc40365 100644 --- a/Documentation/virtual/kvm/devices/arm-vgic-its.txt +++ b/Documentation/virtual/kvm/devices/arm-vgic-its.txt @@ -64,6 +64,8 @@ Groups: -EINVAL: Inconsistent restored data -EFAULT: Invalid guest ram access -EBUSY: One or more VCPUS are running + -EACCES: The virtual ITS is backed by a physical GICv4 ITS, and the + state is not available KVM_DEV_ARM_VGIC_GRP_ITS_REGS Attributes: diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index bf571f6d2b32..b8c1b724ba3e 100644 --- a/virt/kvm/arm/vgic/vgic-its.c +++ b/virt/kvm/arm/vgic/vgic-its.c @@ -1995,6 +1995,15 @@ static int vgic_its_save_itt(struct vgic_its *its, struct its_device *device) list_for_each_entry(ite, &device->itt_head, ite_list) { gpa_t gpa = base + ite->event_id * ite_esz; + /* + * If an LPI carries the HW bit, this means that this + * interrupt is controlled by GICv4, and we do not + * have direct access to that state. Let's simply fail + * the save operation... + */ + if (ite->irq->hw) + return -EACCES; + ret = vgic_its_save_ite(its, device, ite, gpa, ite_esz); if (ret) return ret; -- cgit v1.2.3 From a75460547e13c99762c2f9dbfcdd13ad416f91c5 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Fri, 27 Oct 2017 15:28:54 +0100 Subject: KVM: arm/arm64: GICv4: Enable VLPI support All it takes is the has_v4 flag to be set in gic_kvm_info as well as "kvm-arm.vgic_v4_enable=1" being passed on the command line for GICv4 to be enabled in KVM. Acked-by: Christoffer Dall Signed-off-by: Marc Zyngier Signed-off-by: Christoffer Dall --- Documentation/admin-guide/kernel-parameters.txt | 4 ++++ virt/kvm/arm/vgic/vgic-v3.c | 14 ++++++++++++++ 2 files changed, 18 insertions(+) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 3daa0a590236..6f897a4c8281 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1881,6 +1881,10 @@ [KVM,ARM] Trap guest accesses to GICv3 common system registers + kvm-arm.vgic_v4_enable= + [KVM,ARM] Allow use of GICv4 for direct injection of + LPIs. + kvm-intel.ept= [KVM,Intel] Disable extended page tables (virtualized MMU) support on capable Intel chips. Default is 1 (enabled) diff --git a/virt/kvm/arm/vgic/vgic-v3.c b/virt/kvm/arm/vgic/vgic-v3.c index 863351c090d8..2f05f732d3fd 100644 --- a/virt/kvm/arm/vgic/vgic-v3.c +++ b/virt/kvm/arm/vgic/vgic-v3.c @@ -24,6 +24,7 @@ static bool group0_trap; static bool group1_trap; static bool common_trap; +static bool gicv4_enable; void vgic_v3_set_underflow(struct kvm_vcpu *vcpu) { @@ -461,6 +462,12 @@ static int __init early_common_trap_cfg(char *buf) } early_param("kvm-arm.vgic_v3_common_trap", early_common_trap_cfg); +static int __init early_gicv4_enable(char *buf) +{ + return strtobool(buf, &gicv4_enable); +} +early_param("kvm-arm.vgic_v4_enable", early_gicv4_enable); + /** * vgic_v3_probe - probe for a GICv3 compatible interrupt controller in DT * @node: pointer to the DT node @@ -480,6 +487,13 @@ int vgic_v3_probe(const struct gic_kvm_info *info) kvm_vgic_global_state.can_emulate_gicv2 = false; kvm_vgic_global_state.ich_vtr_el2 = ich_vtr_el2; + /* GICv4 support? */ + if (info->has_v4) { + kvm_vgic_global_state.has_gicv4 = gicv4_enable; + kvm_info("GICv4 support %sabled\n", + gicv4_enable ? "en" : "dis"); + } + if (!info->vcpu.start) { kvm_info("GICv3: no GICV resource entry\n"); kvm_vgic_global_state.vcpu_base = 0; -- cgit v1.2.3 From 8ddef132a36f4081b7cc7a34bce6a666e78083e3 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Wed, 1 Nov 2017 16:20:05 -0700 Subject: dt-bindings: rng: Document BCM7278 RNG200 compatible BCM7278 includes a RGN200 hardware random number generator, document the compatible string for that version of the IP. Signed-off-by: Florian Fainelli Acked-by: Rob Herring Signed-off-by: Herbert Xu --- Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt b/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt index e25a456664b9..0014da9145af 100644 --- a/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt +++ b/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt @@ -1,7 +1,9 @@ HWRNG support for the iproc-rng200 driver Required properties: -- compatible : "brcm,iproc-rng200" +- compatible : Must be one of: + "brcm,bcm7278-rng200" + "brcm,iproc-rng200" - reg : base address and size of control register block Example: -- cgit v1.2.3 From 842ff286166e8512450573f6b6eb5e04e626a07f Mon Sep 17 00:00:00 2001 From: Anthony Kim Date: Wed, 25 Oct 2017 14:57:04 -0700 Subject: Input: add support for HiDeep touchscreen The HiDeep touchscreen device is a capacitive multi-touch controller mainly for multi-touch supported devices use. It use I2C interface for communication to IC and provide axis X, Y, Z locations for ten finger touch through input event interface to userspace. It support the Crimson and the Lime two type IC. They are different the number of channel supported and FW size. But the working protocol is same. Signed-off-by: Anthony Kim Acked-by: Rob Herring Signed-off-by: Dmitry Torokhov --- .../bindings/input/touchscreen/hideep.txt | 42 + .../devicetree/bindings/vendor-prefixes.txt | 1 + drivers/input/touchscreen/Kconfig | 11 + drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/hideep.c | 1120 ++++++++++++++++++++ 5 files changed, 1175 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/hideep.txt create mode 100644 drivers/input/touchscreen/hideep.c (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/input/touchscreen/hideep.txt b/Documentation/devicetree/bindings/input/touchscreen/hideep.txt new file mode 100644 index 000000000000..121d9b7c79a2 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/hideep.txt @@ -0,0 +1,42 @@ +* HiDeep Finger and Stylus touchscreen controller + +Required properties: +- compatible : must be "hideep,hideep-ts" +- reg : I2C slave address, (e.g. 0x6C). +- interrupt-parent : Interrupt controller to which the chip is connected. +- interrupts : Interrupt to which the chip is connected. + +Optional properties: +- vdd-supply : It is the controller supply for controlling + main voltage(3.3V) through the regulator. +- vid-supply : It is the controller supply for controlling + IO voltage(1.8V) through the regulator. +- reset-gpios : Define for reset gpio pin. + It is to use for reset IC. +- touchscreen-size-x : X axis size of touchscreen +- touchscreen-size-y : Y axis size of touchscreen +- linux,keycodes : Specifies an array of numeric keycode values to + be used for reporting button presses. The array can + contain up to 3 entries. + +Example: + +#include "dt-bindings/input/input.h" + +i2c@00000000 { + + /* ... */ + + touchscreen@6c { + compatible = "hideep,hideep-ts"; + reg = <0x6c>; + interrupt-parent = <&gpx1>; + interrupts = <2 IRQ_TYPE_LEVEL_LOW>; + vdd-supply = <&ldo15_reg>"; + vid-supply = <&ldo18_reg>; + reset-gpios = <&gpx1 5 0>; + touchscreen-size-x = <1080>; + touchscreen-size-y = <1920>; + linux,keycodes = , , ; + }; +}; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 1afd298eddd7..138895e99508 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -137,6 +137,7 @@ gw Gateworks Corporation hannstar HannStar Display Corporation haoyu Haoyu Microelectronic Co. Ltd. hardkernel Hardkernel Co., Ltd +hideep HiDeep Inc. himax Himax Technologies, Inc. hisilicon Hisilicon Limited. hit Hitachi Ltd. diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 26a66bc7b2df..dbe33fc3a286 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -354,6 +354,17 @@ config TOUCHSCREEN_GOODIX To compile this driver as a module, choose M here: the module will be called goodix. +config TOUCHSCREEN_HIDEEP + tristate "HiDeep Touch IC" + depends on I2C + help + Say Y here if you have a touchscreen using HiDeep. + + If unsure, say N. + + To compile this driver as a moudle, choose M here : the + module will be called hideep_ts. + config TOUCHSCREEN_ILI210X tristate "Ilitek ILI210X based touchscreen" depends on I2C diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 2fa458088e3b..d9a7024c8cd9 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -41,6 +41,7 @@ obj-$(CONFIG_TOUCHSCREEN_EGALAX_SERIAL) += egalax_ts_serial.o obj-$(CONFIG_TOUCHSCREEN_EXC3000) += exc3000.o obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o obj-$(CONFIG_TOUCHSCREEN_GOODIX) += goodix.o +obj-$(CONFIG_TOUCHSCREEN_HIDEEP) += hideep.o obj-$(CONFIG_TOUCHSCREEN_ILI210X) += ili210x.o obj-$(CONFIG_TOUCHSCREEN_IMX6UL_TSC) += imx6ul_tsc.o obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o diff --git a/drivers/input/touchscreen/hideep.c b/drivers/input/touchscreen/hideep.c new file mode 100644 index 000000000000..fc080a7c2e1f --- /dev/null +++ b/drivers/input/touchscreen/hideep.c @@ -0,0 +1,1120 @@ +/* + * Copyright (C) 2012-2017 Hideep, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 + * as published by the Free Software Foudation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define HIDEEP_TS_NAME "HiDeep Touchscreen" +#define HIDEEP_I2C_NAME "hideep_ts" + +#define HIDEEP_MT_MAX 10 +#define HIDEEP_KEY_MAX 3 + +/* count(2) + touch data(100) + key data(6) */ +#define HIDEEP_MAX_EVENT 108UL + +#define HIDEEP_TOUCH_EVENT_INDEX 2 +#define HIDEEP_KEY_EVENT_INDEX 102 + +/* Touch & key event */ +#define HIDEEP_EVENT_ADDR 0x240 + +/* command list */ +#define HIDEEP_RESET_CMD 0x9800 + +/* event bit */ +#define HIDEEP_MT_RELEASED BIT(4) +#define HIDEEP_KEY_PRESSED BIT(7) +#define HIDEEP_KEY_FIRST_PRESSED BIT(8) +#define HIDEEP_KEY_PRESSED_MASK (HIDEEP_KEY_PRESSED | \ + HIDEEP_KEY_FIRST_PRESSED) + +#define HIDEEP_KEY_IDX_MASK 0x0f + +/* For NVM */ +#define HIDEEP_YRAM_BASE 0x40000000 +#define HIDEEP_PERIPHERAL_BASE 0x50000000 +#define HIDEEP_ESI_BASE (HIDEEP_PERIPHERAL_BASE + 0x00000000) +#define HIDEEP_FLASH_BASE (HIDEEP_PERIPHERAL_BASE + 0x01000000) +#define HIDEEP_SYSCON_BASE (HIDEEP_PERIPHERAL_BASE + 0x02000000) + +#define HIDEEP_SYSCON_MOD_CON (HIDEEP_SYSCON_BASE + 0x0000) +#define HIDEEP_SYSCON_SPC_CON (HIDEEP_SYSCON_BASE + 0x0004) +#define HIDEEP_SYSCON_CLK_CON (HIDEEP_SYSCON_BASE + 0x0008) +#define HIDEEP_SYSCON_CLK_ENA (HIDEEP_SYSCON_BASE + 0x000C) +#define HIDEEP_SYSCON_RST_CON (HIDEEP_SYSCON_BASE + 0x0010) +#define HIDEEP_SYSCON_WDT_CON (HIDEEP_SYSCON_BASE + 0x0014) +#define HIDEEP_SYSCON_WDT_CNT (HIDEEP_SYSCON_BASE + 0x0018) +#define HIDEEP_SYSCON_PWR_CON (HIDEEP_SYSCON_BASE + 0x0020) +#define HIDEEP_SYSCON_PGM_ID (HIDEEP_SYSCON_BASE + 0x00F4) + +#define HIDEEP_FLASH_CON (HIDEEP_FLASH_BASE + 0x0000) +#define HIDEEP_FLASH_STA (HIDEEP_FLASH_BASE + 0x0004) +#define HIDEEP_FLASH_CFG (HIDEEP_FLASH_BASE + 0x0008) +#define HIDEEP_FLASH_TIM (HIDEEP_FLASH_BASE + 0x000C) +#define HIDEEP_FLASH_CACHE_CFG (HIDEEP_FLASH_BASE + 0x0010) +#define HIDEEP_FLASH_PIO_SIG (HIDEEP_FLASH_BASE + 0x400000) + +#define HIDEEP_ESI_TX_INVALID (HIDEEP_ESI_BASE + 0x0008) + +#define HIDEEP_PERASE 0x00040000 +#define HIDEEP_WRONLY 0x00100000 + +#define HIDEEP_NVM_MASK_OFS 0x0000000C +#define HIDEEP_NVM_DEFAULT_PAGE 0 +#define HIDEEP_NVM_SFR_WPAGE 1 +#define HIDEEP_NVM_SFR_RPAGE 2 + +#define HIDEEP_PIO_SIG 0x00400000 +#define HIDEEP_PROT_MODE 0x03400000 + +#define HIDEEP_NVM_PAGE_SIZE 128 + +#define HIDEEP_DWZ_INFO 0x000002C0 + +struct hideep_event { + __le16 x; + __le16 y; + __le16 z; + u8 w; + u8 flag; + u8 type; + u8 index; +}; + +struct dwz_info { + __be32 code_start; + u8 code_crc[12]; + + __be32 c_code_start; + __be16 gen_ver; + __be16 c_code_len; + + __be32 vr_start; + __be16 rsv0; + __be16 vr_len; + + __be32 ft_start; + __be16 vr_version; + __be16 ft_len; + + __be16 core_ver; + __be16 boot_ver; + + __be16 release_ver; + __be16 custom_ver; + + u8 factory_id; + u8 panel_type; + u8 model_name[6]; + + __be16 extra_option; + __be16 product_code; + + __be16 vendor_id; + __be16 product_id; +}; + +struct pgm_packet { + struct { + u8 unused[3]; + u8 len; + __be32 addr; + } header; + __be32 payload[HIDEEP_NVM_PAGE_SIZE / sizeof(__be32)]; +}; + +#define HIDEEP_XFER_BUF_SIZE sizeof(struct pgm_packet) + +struct hideep_ts { + struct i2c_client *client; + struct input_dev *input_dev; + struct regmap *reg; + + struct touchscreen_properties prop; + + struct gpio_desc *reset_gpio; + + struct regulator *vcc_vdd; + struct regulator *vcc_vid; + + struct mutex dev_mutex; + + u32 tch_count; + u32 lpm_count; + + /* + * Data buffer to read packet from the device (contacts and key + * states). We align it on double-word boundary to keep word-sized + * fields in contact data and double-word-sized fields in program + * packet aligned. + */ + u8 xfer_buf[HIDEEP_XFER_BUF_SIZE] __aligned(4); + + int key_num; + u32 key_codes[HIDEEP_KEY_MAX]; + + struct dwz_info dwz_info; + + unsigned int fw_size; + u32 nvm_mask; +}; + +static int hideep_pgm_w_mem(struct hideep_ts *ts, u32 addr, + const __be32 *data, size_t count) +{ + struct pgm_packet *packet = (void *)ts->xfer_buf; + size_t len = count * sizeof(*data); + struct i2c_msg msg = { + .addr = ts->client->addr, + .len = len + sizeof(packet->header.len) + + sizeof(packet->header.addr), + .buf = &packet->header.len, + }; + int ret; + + if (len > HIDEEP_NVM_PAGE_SIZE) + return -EINVAL; + + packet->header.len = 0x80 | (count - 1); + packet->header.addr = cpu_to_be32(addr); + memcpy(packet->payload, data, len); + + ret = i2c_transfer(ts->client->adapter, &msg, 1); + if (ret != 1) + return ret < 0 ? ret : -EIO; + + return 0; +} + +static int hideep_pgm_r_mem(struct hideep_ts *ts, u32 addr, + __be32 *data, size_t count) +{ + struct pgm_packet *packet = (void *)ts->xfer_buf; + size_t len = count * sizeof(*data); + struct i2c_msg msg[] = { + { + .addr = ts->client->addr, + .len = sizeof(packet->header.len) + + sizeof(packet->header.addr), + .buf = &packet->header.len, + }, + { + .addr = ts->client->addr, + .flags = I2C_M_RD, + .len = len, + .buf = (u8 *)data, + }, + }; + int ret; + + if (len > HIDEEP_NVM_PAGE_SIZE) + return -EINVAL; + + packet->header.len = count - 1; + packet->header.addr = cpu_to_be32(addr); + + ret = i2c_transfer(ts->client->adapter, msg, ARRAY_SIZE(msg)); + if (ret != ARRAY_SIZE(msg)) + return ret < 0 ? ret : -EIO; + + return 0; +} + +static int hideep_pgm_r_reg(struct hideep_ts *ts, u32 addr, u32 *val) +{ + __be32 data; + int error; + + error = hideep_pgm_r_mem(ts, addr, &data, 1); + if (error) { + dev_err(&ts->client->dev, + "read of register %#08x failed: %d\n", + addr, error); + return error; + } + + *val = be32_to_cpu(data); + return 0; +} + +static int hideep_pgm_w_reg(struct hideep_ts *ts, u32 addr, u32 val) +{ + __be32 data = cpu_to_be32(val); + int error; + + error = hideep_pgm_w_mem(ts, addr, &data, 1); + if (error) { + dev_err(&ts->client->dev, + "write to register %#08x (%#08x) failed: %d\n", + addr, val, error); + return error; + } + + return 0; +} + +#define SW_RESET_IN_PGM(clk) \ +{ \ + hideep_pgm_w_reg(ts, HIDEEP_SYSCON_WDT_CNT, (clk)); \ + hideep_pgm_w_reg(ts, HIDEEP_SYSCON_WDT_CON, 0x03); \ + hideep_pgm_w_reg(ts, HIDEEP_SYSCON_WDT_CON, 0x01); \ +} + +#define SET_FLASH_PIO(ce) \ + hideep_pgm_w_reg(ts, HIDEEP_FLASH_CON, \ + 0x01 | ((ce) << 1)) + +#define SET_PIO_SIG(x, y) \ + hideep_pgm_w_reg(ts, HIDEEP_FLASH_PIO_SIG + (x), (y)) + +#define SET_FLASH_HWCONTROL() \ + hideep_pgm_w_reg(ts, HIDEEP_FLASH_CON, 0x00) + +#define NVM_W_SFR(x, y) \ +{ \ + SET_FLASH_PIO(1); \ + SET_PIO_SIG(x, y); \ + SET_FLASH_PIO(0); \ +} + +static void hideep_pgm_set(struct hideep_ts *ts) +{ + hideep_pgm_w_reg(ts, HIDEEP_SYSCON_WDT_CON, 0x00); + hideep_pgm_w_reg(ts, HIDEEP_SYSCON_SPC_CON, 0x00); + hideep_pgm_w_reg(ts, HIDEEP_SYSCON_CLK_ENA, 0xFF); + hideep_pgm_w_reg(ts, HIDEEP_SYSCON_CLK_CON, 0x01); + hideep_pgm_w_reg(ts, HIDEEP_SYSCON_PWR_CON, 0x01); + hideep_pgm_w_reg(ts, HIDEEP_FLASH_TIM, 0x03); + hideep_pgm_w_reg(ts, HIDEEP_FLASH_CACHE_CFG, 0x00); +} + +static int hideep_pgm_get_pattern(struct hideep_ts *ts, u32 *pattern) +{ + u16 p1 = 0xAF39; + u16 p2 = 0xDF9D; + int error; + + error = regmap_bulk_write(ts->reg, p1, &p2, 1); + if (error) { + dev_err(&ts->client->dev, + "%s: regmap_bulk_write() failed with %d\n", + __func__, error); + return error; + } + + usleep_range(1000, 1100); + + /* flush invalid Tx load register */ + error = hideep_pgm_w_reg(ts, HIDEEP_ESI_TX_INVALID, 0x01); + if (error) + return error; + + error = hideep_pgm_r_reg(ts, HIDEEP_SYSCON_PGM_ID, pattern); + if (error) + return error; + + return 0; +} + +static int hideep_enter_pgm(struct hideep_ts *ts) +{ + int retry_count = 10; + u32 pattern; + int error; + + while (retry_count--) { + error = hideep_pgm_get_pattern(ts, &pattern); + if (error) { + dev_err(&ts->client->dev, + "hideep_pgm_get_pattern failed: %d\n", error); + } else if (pattern != 0x39AF9DDF) { + dev_err(&ts->client->dev, "%s: bad pattern: %#08x\n", + __func__, pattern); + } else { + dev_dbg(&ts->client->dev, "found magic code"); + + hideep_pgm_set(ts); + usleep_range(1000, 1100); + + return 0; + } + } + + dev_err(&ts->client->dev, "failed to enter pgm mode\n"); + SW_RESET_IN_PGM(1000); + return -EIO; +} + +static void hideep_nvm_unlock(struct hideep_ts *ts) +{ + u32 unmask_code; + + hideep_pgm_w_reg(ts, HIDEEP_FLASH_CFG, HIDEEP_NVM_SFR_RPAGE); + hideep_pgm_r_reg(ts, 0x0000000C, &unmask_code); + hideep_pgm_w_reg(ts, HIDEEP_FLASH_CFG, HIDEEP_NVM_DEFAULT_PAGE); + + /* make it unprotected code */ + unmask_code &= ~HIDEEP_PROT_MODE; + + /* compare unmask code */ + if (unmask_code != ts->nvm_mask) + dev_warn(&ts->client->dev, + "read mask code different %#08x vs %#08x", + unmask_code, ts->nvm_mask); + + hideep_pgm_w_reg(ts, HIDEEP_FLASH_CFG, HIDEEP_NVM_SFR_WPAGE); + SET_FLASH_PIO(0); + + NVM_W_SFR(HIDEEP_NVM_MASK_OFS, ts->nvm_mask); + SET_FLASH_HWCONTROL(); + hideep_pgm_w_reg(ts, HIDEEP_FLASH_CFG, HIDEEP_NVM_DEFAULT_PAGE); +} + +static int hideep_check_status(struct hideep_ts *ts) +{ + int time_out = 100; + int status; + int error; + + while (time_out--) { + error = hideep_pgm_r_reg(ts, HIDEEP_FLASH_STA, &status); + if (!error && status) + return 0; + + usleep_range(1000, 1100); + } + + return -ETIMEDOUT; +} + +static int hideep_program_page(struct hideep_ts *ts, u32 addr, + const __be32 *ucode, size_t xfer_count) +{ + u32 val; + int error; + + error = hideep_check_status(ts); + if (error) + return -EBUSY; + + addr &= ~(HIDEEP_NVM_PAGE_SIZE - 1); + + SET_FLASH_PIO(0); + SET_FLASH_PIO(1); + + /* erase page */ + SET_PIO_SIG(HIDEEP_PERASE | addr, 0xFFFFFFFF); + + SET_FLASH_PIO(0); + + error = hideep_check_status(ts); + if (error) + return -EBUSY; + + /* write page */ + SET_FLASH_PIO(1); + + val = be32_to_cpu(ucode[0]); + SET_PIO_SIG(HIDEEP_WRONLY | addr, val); + + hideep_pgm_w_mem(ts, HIDEEP_FLASH_PIO_SIG | HIDEEP_WRONLY, + ucode, xfer_count); + + val = be32_to_cpu(ucode[xfer_count - 1]); + SET_PIO_SIG(124, val); + + SET_FLASH_PIO(0); + + usleep_range(1000, 1100); + + error = hideep_check_status(ts); + if (error) + return -EBUSY; + + SET_FLASH_HWCONTROL(); + + return 0; +} + +static int hideep_program_nvm(struct hideep_ts *ts, + const __be32 *ucode, size_t ucode_len) +{ + struct pgm_packet *packet_r = (void *)ts->xfer_buf; + __be32 *current_ucode = packet_r->payload; + size_t xfer_len; + size_t xfer_count; + u32 addr = 0; + int error; + + hideep_nvm_unlock(ts); + + while (ucode_len > 0) { + xfer_len = min_t(size_t, ucode_len, HIDEEP_NVM_PAGE_SIZE); + xfer_count = xfer_len / sizeof(*ucode); + + error = hideep_pgm_r_mem(ts, 0x00000000 + addr, + current_ucode, xfer_count); + if (error) { + dev_err(&ts->client->dev, + "%s: failed to read page at offset %#08x: %d\n", + __func__, addr, error); + return error; + } + + /* See if the page needs updating */ + if (memcmp(ucode, current_ucode, xfer_len)) { + error = hideep_program_page(ts, addr, + ucode, xfer_count); + if (error) { + dev_err(&ts->client->dev, + "%s: iwrite failure @%#08x: %d\n", + __func__, addr, error); + return error; + } + + usleep_range(1000, 1100); + } + + ucode += xfer_count; + addr += xfer_len; + ucode_len -= xfer_len; + } + + return 0; +} + +static int hideep_verify_nvm(struct hideep_ts *ts, + const __be32 *ucode, size_t ucode_len) +{ + struct pgm_packet *packet_r = (void *)ts->xfer_buf; + __be32 *current_ucode = packet_r->payload; + size_t xfer_len; + size_t xfer_count; + u32 addr = 0; + int i; + int error; + + while (ucode_len > 0) { + xfer_len = min_t(size_t, ucode_len, HIDEEP_NVM_PAGE_SIZE); + xfer_count = xfer_len / sizeof(*ucode); + + error = hideep_pgm_r_mem(ts, 0x00000000 + addr, + current_ucode, xfer_count); + if (error) { + dev_err(&ts->client->dev, + "%s: failed to read page at offset %#08x: %d\n", + __func__, addr, error); + return error; + } + + if (memcmp(ucode, current_ucode, xfer_len)) { + const u8 *ucode_bytes = (const u8 *)ucode; + const u8 *current_bytes = (const u8 *)current_ucode; + + for (i = 0; i < xfer_len; i++) + if (ucode_bytes[i] != current_bytes[i]) + dev_err(&ts->client->dev, + "%s: mismatch @%#08x: (%#02x vs %#02x)\n", + __func__, addr + i, + ucode_bytes[i], + current_bytes[i]); + + return -EIO; + } + + ucode += xfer_count; + addr += xfer_len; + ucode_len -= xfer_len; + } + + return 0; +} + +static int hideep_load_dwz(struct hideep_ts *ts) +{ + u16 product_code; + int error; + + error = hideep_enter_pgm(ts); + if (error) + return error; + + msleep(50); + + error = hideep_pgm_r_mem(ts, HIDEEP_DWZ_INFO, + (void *)&ts->dwz_info, + sizeof(ts->dwz_info) / sizeof(__be32)); + + SW_RESET_IN_PGM(10); + msleep(50); + + if (error) { + dev_err(&ts->client->dev, + "failed to fetch DWZ data: %d\n", error); + return error; + } + + product_code = be16_to_cpu(ts->dwz_info.product_code); + + switch (product_code & 0xF0) { + case 0x40: + dev_dbg(&ts->client->dev, "used crimson IC"); + ts->fw_size = 1024 * 48; + ts->nvm_mask = 0x00310000; + break; + case 0x60: + dev_dbg(&ts->client->dev, "used lime IC"); + ts->fw_size = 1024 * 64; + ts->nvm_mask = 0x0030027B; + break; + default: + dev_err(&ts->client->dev, "product code is wrong: %#04x", + product_code); + return -EINVAL; + } + + dev_dbg(&ts->client->dev, "firmware release version: %#04x", + be16_to_cpu(ts->dwz_info.release_ver)); + + return 0; +} + +static int hideep_flash_firmware(struct hideep_ts *ts, + const __be32 *ucode, size_t ucode_len) +{ + int retry_cnt = 3; + int error; + + while (retry_cnt--) { + error = hideep_program_nvm(ts, ucode, ucode_len); + if (!error) { + error = hideep_verify_nvm(ts, ucode, ucode_len); + if (!error) + return 0; + } + } + + return error; +} + +static int hideep_update_firmware(struct hideep_ts *ts, + const __be32 *ucode, size_t ucode_len) +{ + int error, error2; + + dev_dbg(&ts->client->dev, "starting firmware update"); + + /* enter program mode */ + error = hideep_enter_pgm(ts); + if (error) + return error; + + error = hideep_flash_firmware(ts, ucode, ucode_len); + if (error) + dev_err(&ts->client->dev, + "firmware update failed: %d\n", error); + else + dev_dbg(&ts->client->dev, "firmware updated successfully\n"); + + SW_RESET_IN_PGM(1000); + + error2 = hideep_load_dwz(ts); + if (error2) + dev_err(&ts->client->dev, + "failed to load dwz after firmware update: %d\n", + error2); + + return error ?: error2; +} + +static int hideep_power_on(struct hideep_ts *ts) +{ + int error = 0; + + error = regulator_enable(ts->vcc_vdd); + if (error) + dev_err(&ts->client->dev, + "failed to enable 'vdd' regulator: %d", error); + + usleep_range(999, 1000); + + error = regulator_enable(ts->vcc_vid); + if (error) + dev_err(&ts->client->dev, + "failed to enable 'vcc_vid' regulator: %d", + error); + + msleep(30); + + if (ts->reset_gpio) { + gpiod_set_value_cansleep(ts->reset_gpio, 0); + } else { + error = regmap_write(ts->reg, HIDEEP_RESET_CMD, 0x01); + if (error) + dev_err(&ts->client->dev, + "failed to send 'reset' command: %d\n", error); + } + + msleep(50); + + return error; +} + +static void hideep_power_off(void *data) +{ + struct hideep_ts *ts = data; + + if (ts->reset_gpio) + gpiod_set_value(ts->reset_gpio, 1); + + regulator_disable(ts->vcc_vid); + regulator_disable(ts->vcc_vdd); +} + +#define __GET_MT_TOOL_TYPE(type) ((type) == 0x01 ? MT_TOOL_FINGER : MT_TOOL_PEN) + +static void hideep_report_slot(struct input_dev *input, + const struct hideep_event *event) +{ + input_mt_slot(input, event->index & 0x0f); + input_mt_report_slot_state(input, + __GET_MT_TOOL_TYPE(event->type), + !(event->flag & HIDEEP_MT_RELEASED)); + if (!(event->flag & HIDEEP_MT_RELEASED)) { + input_report_abs(input, ABS_MT_POSITION_X, + le16_to_cpup(&event->x)); + input_report_abs(input, ABS_MT_POSITION_Y, + le16_to_cpup(&event->y)); + input_report_abs(input, ABS_MT_PRESSURE, + le16_to_cpup(&event->z)); + input_report_abs(input, ABS_MT_TOUCH_MAJOR, event->w); + } +} + +static void hideep_parse_and_report(struct hideep_ts *ts) +{ + const struct hideep_event *events = + (void *)&ts->xfer_buf[HIDEEP_TOUCH_EVENT_INDEX]; + const u8 *keys = &ts->xfer_buf[HIDEEP_KEY_EVENT_INDEX]; + int touch_count = ts->xfer_buf[0]; + int key_count = ts->xfer_buf[1] & 0x0f; + int lpm_count = ts->xfer_buf[1] & 0xf0; + int i; + + /* get touch event count */ + dev_dbg(&ts->client->dev, "mt = %d, key = %d, lpm = %02x", + touch_count, key_count, lpm_count); + + touch_count = min(touch_count, HIDEEP_MT_MAX); + for (i = 0; i < touch_count; i++) + hideep_report_slot(ts->input_dev, events + i); + + key_count = min(key_count, HIDEEP_KEY_MAX); + for (i = 0; i < key_count; i++) { + u8 key_data = keys[i * 2]; + + input_report_key(ts->input_dev, + ts->key_codes[key_data & HIDEEP_KEY_IDX_MASK], + key_data & HIDEEP_KEY_PRESSED_MASK); + } + + input_mt_sync_frame(ts->input_dev); + input_sync(ts->input_dev); +} + +static irqreturn_t hideep_irq(int irq, void *handle) +{ + struct hideep_ts *ts = handle; + int error; + + BUILD_BUG_ON(HIDEEP_MAX_EVENT > HIDEEP_XFER_BUF_SIZE); + + error = regmap_bulk_read(ts->reg, HIDEEP_EVENT_ADDR, + ts->xfer_buf, HIDEEP_MAX_EVENT / 2); + if (error) { + dev_err(&ts->client->dev, "failed to read events: %d\n", error); + goto out; + } + + hideep_parse_and_report(ts); + +out: + return IRQ_HANDLED; +} + +static int hideep_get_axis_info(struct hideep_ts *ts) +{ + __le16 val[2]; + int error; + + error = regmap_bulk_read(ts->reg, 0x28, val, ARRAY_SIZE(val)); + if (error) + return error; + + ts->prop.max_x = le16_to_cpup(val); + ts->prop.max_y = le16_to_cpup(val + 1); + + dev_dbg(&ts->client->dev, "X: %d, Y: %d", + ts->prop.max_x, ts->prop.max_y); + + return 0; +} + +static int hideep_init_input(struct hideep_ts *ts) +{ + struct device *dev = &ts->client->dev; + int i; + int error; + + ts->input_dev = devm_input_allocate_device(dev); + if (!ts->input_dev) { + dev_err(dev, "failed to allocate input device\n"); + return -ENOMEM; + } + + ts->input_dev->name = HIDEEP_TS_NAME; + ts->input_dev->id.bustype = BUS_I2C; + input_set_drvdata(ts->input_dev, ts); + + input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_X); + input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_Y); + input_set_abs_params(ts->input_dev, ABS_MT_PRESSURE, 0, 65535, 0, 0); + input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0); + input_set_abs_params(ts->input_dev, ABS_MT_TOOL_TYPE, + 0, MT_TOOL_MAX, 0, 0); + touchscreen_parse_properties(ts->input_dev, true, &ts->prop); + + if (ts->prop.max_x == 0 || ts->prop.max_y == 0) { + error = hideep_get_axis_info(ts); + if (error) + return error; + } + + error = input_mt_init_slots(ts->input_dev, HIDEEP_MT_MAX, + INPUT_MT_DIRECT); + if (error) + return error; + + ts->key_num = device_property_read_u32_array(dev, "linux,keycodes", + NULL, 0); + if (ts->key_num > HIDEEP_KEY_MAX) { + dev_err(dev, "too many keys defined: %d\n", + ts->key_num); + return -EINVAL; + } + + if (ts->key_num <= 0) { + dev_dbg(dev, + "missing or malformed 'linux,keycodes' property\n"); + } else { + error = device_property_read_u32_array(dev, "linux,keycodes", + ts->key_codes, + ts->key_num); + if (error) { + dev_dbg(dev, "failed to read keymap: %d", error); + return error; + } + + if (ts->key_num) { + ts->input_dev->keycode = ts->key_codes; + ts->input_dev->keycodesize = sizeof(ts->key_codes[0]); + ts->input_dev->keycodemax = ts->key_num; + + for (i = 0; i < ts->key_num; i++) + input_set_capability(ts->input_dev, EV_KEY, + ts->key_codes[i]); + } + } + + error = input_register_device(ts->input_dev); + if (error) { + dev_err(dev, "failed to register input device: %d", error); + return error; + } + + return 0; +} + +static ssize_t hideep_update_fw(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct hideep_ts *ts = i2c_get_clientdata(client); + const struct firmware *fw_entry; + char *fw_name; + int mode; + int error; + + error = kstrtoint(buf, 0, &mode); + if (error) + return error; + + fw_name = kasprintf(GFP_KERNEL, "hideep_ts_%04x.bin", + be16_to_cpu(ts->dwz_info.product_id)); + if (!fw_name) + return -ENOMEM; + + error = request_firmware(&fw_entry, fw_name, dev); + if (error) { + dev_err(dev, "failed to request firmware %s: %d", + fw_name, error); + goto out_free_fw_name; + } + + if (fw_entry->size % sizeof(__be32)) { + dev_err(dev, "invalid firmware size %zu\n", fw_entry->size); + error = -EINVAL; + goto out_release_fw; + } + + if (fw_entry->size > ts->fw_size) { + dev_err(dev, "fw size (%zu) is too big (memory size %d)\n", + fw_entry->size, ts->fw_size); + error = -EFBIG; + goto out_release_fw; + } + + mutex_lock(&ts->dev_mutex); + disable_irq(client->irq); + + error = hideep_update_firmware(ts, (const __be32 *)fw_entry->data, + fw_entry->size); + + enable_irq(client->irq); + mutex_unlock(&ts->dev_mutex); + +out_release_fw: + release_firmware(fw_entry); +out_free_fw_name: + kfree(fw_name); + + return error ?: count; +} + +static ssize_t hideep_fw_version_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct hideep_ts *ts = i2c_get_clientdata(client); + ssize_t len; + + mutex_lock(&ts->dev_mutex); + len = scnprintf(buf, PAGE_SIZE, "%04x\n", + be16_to_cpu(ts->dwz_info.release_ver)); + mutex_unlock(&ts->dev_mutex); + + return len; +} + +static ssize_t hideep_product_id_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct hideep_ts *ts = i2c_get_clientdata(client); + ssize_t len; + + mutex_lock(&ts->dev_mutex); + len = scnprintf(buf, PAGE_SIZE, "%04x\n", + be16_to_cpu(ts->dwz_info.product_id)); + mutex_unlock(&ts->dev_mutex); + + return len; +} + +static DEVICE_ATTR(version, 0664, hideep_fw_version_show, NULL); +static DEVICE_ATTR(product_id, 0664, hideep_product_id_show, NULL); +static DEVICE_ATTR(update_fw, 0664, NULL, hideep_update_fw); + +static struct attribute *hideep_ts_sysfs_entries[] = { + &dev_attr_version.attr, + &dev_attr_product_id.attr, + &dev_attr_update_fw.attr, + NULL, +}; + +static const struct attribute_group hideep_ts_attr_group = { + .attrs = hideep_ts_sysfs_entries, +}; + +static int __maybe_unused hideep_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct hideep_ts *ts = i2c_get_clientdata(client); + + disable_irq(client->irq); + hideep_power_off(ts); + + return 0; +} + +static int __maybe_unused hideep_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct hideep_ts *ts = i2c_get_clientdata(client); + int error; + + error = hideep_power_on(ts); + if (error) { + dev_err(&client->dev, "power on failed"); + return error; + } + + enable_irq(client->irq); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(hideep_pm_ops, hideep_suspend, hideep_resume); + +static const struct regmap_config hideep_regmap_config = { + .reg_bits = 16, + .reg_format_endian = REGMAP_ENDIAN_LITTLE, + .val_bits = 16, + .val_format_endian = REGMAP_ENDIAN_LITTLE, + .max_register = 0xffff, +}; + +static int hideep_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct hideep_ts *ts; + int error; + + /* check i2c bus */ + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { + dev_err(&client->dev, "check i2c device error"); + return -ENODEV; + } + + if (client->irq <= 0) { + dev_err(&client->dev, "missing irq: %d\n", client->irq); + return -EINVAL; + } + + ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL); + if (!ts) + return -ENOMEM; + + ts->client = client; + i2c_set_clientdata(client, ts); + mutex_init(&ts->dev_mutex); + + ts->reg = devm_regmap_init_i2c(client, &hideep_regmap_config); + if (IS_ERR(ts->reg)) { + error = PTR_ERR(ts->reg); + dev_err(&client->dev, + "failed to initialize regmap: %d\n", error); + return error; + } + + ts->vcc_vdd = devm_regulator_get(&client->dev, "vdd"); + if (IS_ERR(ts->vcc_vdd)) + return PTR_ERR(ts->vcc_vdd); + + ts->vcc_vid = devm_regulator_get(&client->dev, "vid"); + if (IS_ERR(ts->vcc_vid)) + return PTR_ERR(ts->vcc_vid); + + ts->reset_gpio = devm_gpiod_get_optional(&client->dev, + "reset", GPIOD_OUT_HIGH); + if (IS_ERR(ts->reset_gpio)) + return PTR_ERR(ts->reset_gpio); + + error = hideep_power_on(ts); + if (error) { + dev_err(&client->dev, "power on failed: %d\n", error); + return error; + } + + error = devm_add_action_or_reset(&client->dev, hideep_power_off, ts); + if (error) + return error; + + error = hideep_load_dwz(ts); + if (error) { + dev_err(&client->dev, "failed to load dwz: %d", error); + return error; + } + + error = hideep_init_input(ts); + if (error) + return error; + + error = devm_request_threaded_irq(&client->dev, client->irq, + NULL, hideep_irq, IRQF_ONESHOT, + client->name, ts); + if (error) { + dev_err(&client->dev, "failed to request irq %d: %d\n", + client->irq, error); + return error; + } + + error = devm_device_add_group(&client->dev, &hideep_ts_attr_group); + if (error) { + dev_err(&client->dev, + "failed to add sysfs attributes: %d\n", error); + return error; + } + + return 0; +} + +static const struct i2c_device_id hideep_i2c_id[] = { + { HIDEEP_I2C_NAME, 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, hideep_i2c_id); + +#ifdef CONFIG_ACPI +static const struct acpi_device_id hideep_acpi_id[] = { + { "HIDP0001", 0 }, + { } +}; +MODULE_DEVICE_TABLE(acpi, hideep_acpi_id); +#endif + +#ifdef CONFIG_OF +static const struct of_device_id hideep_match_table[] = { + { .compatible = "hideep,hideep-ts" }, + { } +}; +MODULE_DEVICE_TABLE(of, hideep_match_table); +#endif + +static struct i2c_driver hideep_driver = { + .driver = { + .name = HIDEEP_I2C_NAME, + .of_match_table = of_match_ptr(hideep_match_table), + .acpi_match_table = ACPI_PTR(hideep_acpi_id), + .pm = &hideep_pm_ops, + }, + .id_table = hideep_i2c_id, + .probe = hideep_probe, +}; + +module_i2c_driver(hideep_driver); + +MODULE_DESCRIPTION("Driver for HiDeep Touchscreen Controller"); +MODULE_AUTHOR("anthony.kim@hideep.com"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From 0145a7141e597e14c60f7561add76bea874768b2 Mon Sep 17 00:00:00 2001 From: Andi Shyti Date: Thu, 9 Nov 2017 23:10:06 -0800 Subject: Input: add support for the Samsung S6SY761 touchscreen The S6SY761 touchscreen is a capicitive multi-touch controller for mobile use. It's connected with i2c at the address 0x48. This commit provides a basic version of the driver which can handle only initialization, touch events and power states. The controller is controlled by a firmware which, in the version I currently have, doesn't provide all the possible functionalities mentioned in the datasheet. Signed-off-by: Andi Shyti Acked-by: Rob Herring Signed-off-by: Dmitry Torokhov --- .../bindings/input/touchscreen/samsung,s6sy761.txt | 34 ++ drivers/input/touchscreen/Kconfig | 11 + drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/s6sy761.c | 559 +++++++++++++++++++++ 4 files changed, 605 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/touchscreen/samsung,s6sy761.txt create mode 100644 drivers/input/touchscreen/s6sy761.c (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/input/touchscreen/samsung,s6sy761.txt b/Documentation/devicetree/bindings/input/touchscreen/samsung,s6sy761.txt new file mode 100644 index 000000000000..d9b7c2ff611e --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/samsung,s6sy761.txt @@ -0,0 +1,34 @@ +* Samsung S6SY761 touchscreen controller + +Required properties: +- compatible : must be "samsung,s6sy761" +- reg : I2C slave address, (e.g. 0x48) +- interrupt-parent : the phandle to the interrupt controller which provides + the interrupt +- interrupts : interrupt specification +- avdd-supply : analogic power supply +- vdd-supply : power supply + +Optional properties: +- touchscreen-size-x : see touchscreen.txt. This property is embedded in the + device. If defined it forces a different x resolution. +- touchscreen-size-y : see touchscreen.txt. This property is embedded in the + device. If defined it forces a different y resolution. + +Example: + +i2c@00000000 { + + /* ... */ + + touchscreen@48 { + compatible = "samsung,s6sy761"; + reg = <0x48>; + interrupt-parent = <&gpa1>; + interrupts = <1 IRQ_TYPE_NONE>; + avdd-supply = <&ldo30_reg>; + vdd-supply = <&ldo31_reg>; + touchscreen-size-x = <4096>; + touchscreen-size-y = <4096>; + }; +}; diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index dbe33fc3a286..0cfdb7cb610e 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -404,6 +404,17 @@ config TOUCHSCREEN_S3C2410 To compile this driver as a module, choose M here: the module will be called s3c2410_ts. +config TOUCHSCREEN_S6SY761 + tristate "Samsung S6SY761 Touchscreen driver" + depends on I2C + help + Say Y if you have the Samsung S6SY761 driver + + If unsure, say N + + To compile this driver as module, choose M here: the + module will be called s6sy761. + config TOUCHSCREEN_GUNZE tristate "Gunze AHL-51S touchscreen" select SERIO diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index d9a7024c8cd9..d2a2b3b7af27 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -67,6 +67,7 @@ obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o obj-$(CONFIG_TOUCHSCREEN_PIXCIR) += pixcir_i2c_ts.o obj-$(CONFIG_TOUCHSCREEN_RM_TS) += raydium_i2c_ts.o obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o +obj-$(CONFIG_TOUCHSCREEN_S6SY761) += s6sy761.o obj-$(CONFIG_TOUCHSCREEN_SILEAD) += silead.o obj-$(CONFIG_TOUCHSCREEN_SIS_I2C) += sis_i2c.o obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o diff --git a/drivers/input/touchscreen/s6sy761.c b/drivers/input/touchscreen/s6sy761.c new file mode 100644 index 000000000000..26b1cb8a88ec --- /dev/null +++ b/drivers/input/touchscreen/s6sy761.c @@ -0,0 +1,559 @@ +/* + * Copyright (c) 2017 Samsung Electronics Co., Ltd. + * Author: Andi Shyti + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Samsung S6SY761 Touchscreen device driver + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* commands */ +#define S6SY761_SENSE_ON 0x10 +#define S6SY761_SENSE_OFF 0x11 +#define S6SY761_TOUCH_FUNCTION 0x30 /* R/W for get/set */ +#define S6SY761_FIRMWARE_INTEGRITY 0x21 +#define S6SY761_PANEL_INFO 0x23 +#define S6SY761_DEVICE_ID 0x52 +#define S6SY761_BOOT_STATUS 0x55 +#define S6SY761_READ_ONE_EVENT 0x60 +#define S6SY761_READ_ALL_EVENT 0x61 +#define S6SY761_CLEAR_EVENT_STACK 0x62 +#define S6SY761_APPLICATION_MODE 0xe4 + +/* events */ +#define S6SY761_EVENT_INFO 0x02 +#define S6SY761_EVENT_VENDOR_INFO 0x07 + +/* info */ +#define S6SY761_INFO_BOOT_COMPLETE 0x00 + +/* firmware status */ +#define S6SY761_FW_OK 0x80 + +/* + * the functionalities are put as a reference + * as in the device I am using none of them + * works therefore not used in this driver yet. + */ +/* touchscreen functionalities */ +#define S6SY761_MASK_TOUCH BIT(0) +#define S6SY761_MASK_HOVER BIT(1) +#define S6SY761_MASK_COVER BIT(2) +#define S6SY761_MASK_GLOVE BIT(3) +#define S6SY761_MASK_STYLUS BIT(4) +#define S6SY761_MASK_PALM BIT(5) +#define S6SY761_MASK_WET BIT(6) +#define S6SY761_MASK_PROXIMITY BIT(7) + +/* boot status (BS) */ +#define S6SY761_BS_BOOT_LOADER 0x10 +#define S6SY761_BS_APPLICATION 0x20 + +/* event id */ +#define S6SY761_EVENT_ID_COORDINATE 0x00 +#define S6SY761_EVENT_ID_STATUS 0x01 + +/* event register masks */ +#define S6SY761_MASK_TOUCH_STATE 0xc0 /* byte 0 */ +#define S6SY761_MASK_TID 0x3c +#define S6SY761_MASK_EID 0x03 +#define S6SY761_MASK_X 0xf0 /* byte 3 */ +#define S6SY761_MASK_Y 0x0f +#define S6SY761_MASK_Z 0x3f /* byte 6 */ +#define S6SY761_MASK_LEFT_EVENTS 0x3f /* byte 7 */ +#define S6SY761_MASK_TOUCH_TYPE 0xc0 /* MSB in byte 6, LSB in byte 7 */ + +/* event touch state values */ +#define S6SY761_TS_NONE 0x00 +#define S6SY761_TS_PRESS 0x01 +#define S6SY761_TS_MOVE 0x02 +#define S6SY761_TS_RELEASE 0x03 + +/* application modes */ +#define S6SY761_APP_NORMAL 0x0 +#define S6SY761_APP_LOW_POWER 0x1 +#define S6SY761_APP_TEST 0x2 +#define S6SY761_APP_FLASH 0x3 +#define S6SY761_APP_SLEEP 0x4 + +#define S6SY761_EVENT_SIZE 8 +#define S6SY761_EVENT_COUNT 32 +#define S6SY761_DEVID_SIZE 3 +#define S6SY761_PANEL_ID_SIZE 11 +#define S6SY761_TS_STATUS_SIZE 5 +#define S6SY761_MAX_FINGERS 10 + +#define S6SY761_DEV_NAME "s6sy761" + +enum s6sy761_regulators { + S6SY761_REGULATOR_VDD, + S6SY761_REGULATOR_AVDD, +}; + +struct s6sy761_data { + struct i2c_client *client; + struct regulator_bulk_data regulators[2]; + struct input_dev *input; + struct touchscreen_properties prop; + + u8 data[S6SY761_EVENT_SIZE * S6SY761_EVENT_COUNT]; + + u16 devid; + u8 tx_channel; +}; + +/* + * We can't simply use i2c_smbus_read_i2c_block_data because we + * need to read more than 255 bytes + */ +static int s6sy761_read_events(struct s6sy761_data *sdata, u16 n_events) +{ + u8 cmd = S6SY761_READ_ALL_EVENT; + struct i2c_msg msgs[2] = { + { + .addr = sdata->client->addr, + .len = 1, + .buf = &cmd, + }, + { + .addr = sdata->client->addr, + .flags = I2C_M_RD, + .len = (n_events * S6SY761_EVENT_SIZE), + .buf = sdata->data + S6SY761_EVENT_SIZE, + }, + }; + int ret; + + ret = i2c_transfer(sdata->client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret < 0) + return ret; + + return ret == ARRAY_SIZE(msgs) ? 0 : -EIO; +} + +static void s6sy761_report_coordinates(struct s6sy761_data *sdata, + u8 *event, u8 tid) +{ + u8 major = event[4]; + u8 minor = event[5]; + u8 z = event[6] & S6SY761_MASK_Z; + u16 x = (event[1] << 3) | ((event[3] & S6SY761_MASK_X) >> 4); + u16 y = (event[2] << 3) | (event[3] & S6SY761_MASK_Y); + + input_mt_slot(sdata->input, tid); + + input_mt_report_slot_state(sdata->input, MT_TOOL_FINGER, true); + input_report_abs(sdata->input, ABS_MT_POSITION_X, x); + input_report_abs(sdata->input, ABS_MT_POSITION_Y, y); + input_report_abs(sdata->input, ABS_MT_TOUCH_MAJOR, major); + input_report_abs(sdata->input, ABS_MT_TOUCH_MINOR, minor); + input_report_abs(sdata->input, ABS_MT_PRESSURE, z); + + input_sync(sdata->input); +} + +static void s6sy761_report_release(struct s6sy761_data *sdata, + u8 *event, u8 tid) +{ + input_mt_slot(sdata->input, tid); + input_mt_report_slot_state(sdata->input, MT_TOOL_FINGER, false); + + input_sync(sdata->input); +} + +static void s6sy761_handle_coordinates(struct s6sy761_data *sdata, u8 *event) +{ + u8 tid; + u8 touch_state; + + if (unlikely(!(event[0] & S6SY761_MASK_TID))) + return; + + tid = ((event[0] & S6SY761_MASK_TID) >> 2) - 1; + touch_state = (event[0] & S6SY761_MASK_TOUCH_STATE) >> 6; + + switch (touch_state) { + + case S6SY761_TS_NONE: + break; + case S6SY761_TS_RELEASE: + s6sy761_report_release(sdata, event, tid); + break; + case S6SY761_TS_PRESS: + case S6SY761_TS_MOVE: + s6sy761_report_coordinates(sdata, event, tid); + break; + } +} + +static void s6sy761_handle_events(struct s6sy761_data *sdata, u8 n_events) +{ + int i; + + for (i = 0; i < n_events; i++) { + u8 *event = &sdata->data[i * S6SY761_EVENT_SIZE]; + u8 event_id = event[0] & S6SY761_MASK_EID; + + if (!event[0]) + return; + + switch (event_id) { + + case S6SY761_EVENT_ID_COORDINATE: + s6sy761_handle_coordinates(sdata, event); + break; + + case S6SY761_EVENT_ID_STATUS: + break; + + default: + break; + } + } +} + +static irqreturn_t s6sy761_irq_handler(int irq, void *dev) +{ + struct s6sy761_data *sdata = dev; + int ret; + u8 n_events; + + ret = i2c_smbus_read_i2c_block_data(sdata->client, + S6SY761_READ_ONE_EVENT, + S6SY761_EVENT_SIZE, + sdata->data); + if (ret < 0) { + dev_err(&sdata->client->dev, "failed to read events\n"); + return IRQ_HANDLED; + } + + if (!sdata->data[0]) + return IRQ_HANDLED; + + n_events = sdata->data[7] & S6SY761_MASK_LEFT_EVENTS; + if (unlikely(n_events > S6SY761_EVENT_COUNT - 1)) + return IRQ_HANDLED; + + if (n_events) { + ret = s6sy761_read_events(sdata, n_events); + if (ret < 0) { + dev_err(&sdata->client->dev, "failed to read events\n"); + return IRQ_HANDLED; + } + } + + s6sy761_handle_events(sdata, n_events + 1); + + return IRQ_HANDLED; +} + +static int s6sy761_input_open(struct input_dev *dev) +{ + struct s6sy761_data *sdata = input_get_drvdata(dev); + + return i2c_smbus_write_byte(sdata->client, S6SY761_SENSE_ON); +} + +static void s6sy761_input_close(struct input_dev *dev) +{ + struct s6sy761_data *sdata = input_get_drvdata(dev); + int ret; + + ret = i2c_smbus_write_byte(sdata->client, S6SY761_SENSE_OFF); + if (ret) + dev_err(&sdata->client->dev, "failed to turn off sensing\n"); +} + +static ssize_t s6sy761_sysfs_devid(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct s6sy761_data *sdata = dev_get_drvdata(dev); + + return sprintf(buf, "%#x\n", sdata->devid); +} + +static DEVICE_ATTR(devid, 0444, s6sy761_sysfs_devid, NULL); + +static struct attribute *s6sy761_sysfs_attrs[] = { + &dev_attr_devid.attr, + NULL +}; + +static struct attribute_group s6sy761_attribute_group = { + .attrs = s6sy761_sysfs_attrs +}; + +static int s6sy761_power_on(struct s6sy761_data *sdata) +{ + u8 buffer[S6SY761_EVENT_SIZE]; + u8 event; + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(sdata->regulators), + sdata->regulators); + if (ret) + return ret; + + msleep(140); + + /* double check whether the touch is functional */ + ret = i2c_smbus_read_i2c_block_data(sdata->client, + S6SY761_READ_ONE_EVENT, + S6SY761_EVENT_SIZE, + buffer); + if (ret < 0) + return ret; + + event = (buffer[0] >> 2) & 0xf; + + if ((event != S6SY761_EVENT_INFO && + event != S6SY761_EVENT_VENDOR_INFO) || + buffer[1] != S6SY761_INFO_BOOT_COMPLETE) { + return -ENODEV; + } + + ret = i2c_smbus_read_byte_data(sdata->client, S6SY761_BOOT_STATUS); + if (ret < 0) + return ret; + + /* for some reasons the device might be stuck in the bootloader */ + if (ret != S6SY761_BS_APPLICATION) + return -ENODEV; + + /* enable touch functionality */ + ret = i2c_smbus_write_word_data(sdata->client, + S6SY761_TOUCH_FUNCTION, + S6SY761_MASK_TOUCH); + if (ret) + return ret; + + return 0; +} + +static int s6sy761_hw_init(struct s6sy761_data *sdata, + unsigned int *max_x, unsigned int *max_y) +{ + u8 buffer[S6SY761_PANEL_ID_SIZE]; /* larger read size */ + int ret; + + ret = s6sy761_power_on(sdata); + if (ret) + return ret; + + ret = i2c_smbus_read_i2c_block_data(sdata->client, + S6SY761_DEVICE_ID, + S6SY761_DEVID_SIZE, + buffer); + if (ret < 0) + return ret; + + sdata->devid = get_unaligned_be16(buffer + 1); + + ret = i2c_smbus_read_i2c_block_data(sdata->client, + S6SY761_PANEL_INFO, + S6SY761_PANEL_ID_SIZE, + buffer); + if (ret < 0) + return ret; + + *max_x = get_unaligned_be16(buffer); + *max_y = get_unaligned_be16(buffer + 2); + + /* if no tx channels defined, at least keep one */ + sdata->tx_channel = max_t(u8, buffer[8], 1); + + ret = i2c_smbus_read_byte_data(sdata->client, + S6SY761_FIRMWARE_INTEGRITY); + if (ret < 0) + return ret; + else if (ret != S6SY761_FW_OK) + return -ENODEV; + + return 0; +} + +static void s6sy761_power_off(void *data) +{ + struct s6sy761_data *sdata = data; + + disable_irq(sdata->client->irq); + regulator_bulk_disable(ARRAY_SIZE(sdata->regulators), + sdata->regulators); +} + +static int s6sy761_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct s6sy761_data *sdata; + unsigned int max_x, max_y; + int err; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C | + I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_I2C_BLOCK)) + return -ENODEV; + + sdata = devm_kzalloc(&client->dev, sizeof(*sdata), GFP_KERNEL); + if (!sdata) + return -ENOMEM; + + i2c_set_clientdata(client, sdata); + sdata->client = client; + + sdata->regulators[S6SY761_REGULATOR_VDD].supply = "vdd"; + sdata->regulators[S6SY761_REGULATOR_AVDD].supply = "avdd"; + err = devm_regulator_bulk_get(&client->dev, + ARRAY_SIZE(sdata->regulators), + sdata->regulators); + if (err) + return err; + + err = devm_add_action_or_reset(&client->dev, s6sy761_power_off, sdata); + if (err) + return err; + + err = s6sy761_hw_init(sdata, &max_x, &max_y); + if (err) + return err; + + sdata->input = devm_input_allocate_device(&client->dev); + if (!sdata->input) + return -ENOMEM; + + sdata->input->name = S6SY761_DEV_NAME; + sdata->input->id.bustype = BUS_I2C; + sdata->input->open = s6sy761_input_open; + sdata->input->close = s6sy761_input_close; + + input_set_abs_params(sdata->input, ABS_MT_POSITION_X, 0, max_x, 0, 0); + input_set_abs_params(sdata->input, ABS_MT_POSITION_Y, 0, max_y, 0, 0); + input_set_abs_params(sdata->input, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0); + input_set_abs_params(sdata->input, ABS_MT_TOUCH_MINOR, 0, 255, 0, 0); + input_set_abs_params(sdata->input, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0); + input_set_abs_params(sdata->input, ABS_MT_TOUCH_MINOR, 0, 255, 0, 0); + input_set_abs_params(sdata->input, ABS_MT_PRESSURE, 0, 255, 0, 0); + + touchscreen_parse_properties(sdata->input, true, &sdata->prop); + + if (!input_abs_get_max(sdata->input, ABS_X) || + !input_abs_get_max(sdata->input, ABS_Y)) { + dev_warn(&client->dev, "the axis have not been set\n"); + } + + err = input_mt_init_slots(sdata->input, sdata->tx_channel, + INPUT_MT_DIRECT); + if (err) + return err; + + input_set_drvdata(sdata->input, sdata); + + err = input_register_device(sdata->input); + if (err) + return err; + + err = devm_request_threaded_irq(&client->dev, client->irq, NULL, + s6sy761_irq_handler, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "s6sy761_irq", sdata); + if (err) + return err; + + err = devm_device_add_group(&client->dev, &s6sy761_attribute_group); + if (err) + return err; + + pm_runtime_enable(&client->dev); + + return 0; +} + +static int s6sy761_remove(struct i2c_client *client) +{ + pm_runtime_disable(&client->dev); + + return 0; +} + +static int __maybe_unused s6sy761_runtime_suspend(struct device *dev) +{ + struct s6sy761_data *sdata = dev_get_drvdata(dev); + + return i2c_smbus_write_byte_data(sdata->client, + S6SY761_APPLICATION_MODE, S6SY761_APP_SLEEP); +} + +static int __maybe_unused s6sy761_runtime_resume(struct device *dev) +{ + struct s6sy761_data *sdata = dev_get_drvdata(dev); + + return i2c_smbus_write_byte_data(sdata->client, + S6SY761_APPLICATION_MODE, S6SY761_APP_NORMAL); +} + +static int __maybe_unused s6sy761_suspend(struct device *dev) +{ + struct s6sy761_data *sdata = dev_get_drvdata(dev); + + s6sy761_power_off(sdata); + + return 0; +} + +static int __maybe_unused s6sy761_resume(struct device *dev) +{ + struct s6sy761_data *sdata = dev_get_drvdata(dev); + + enable_irq(sdata->client->irq); + + return s6sy761_power_on(sdata); +} + +static const struct dev_pm_ops s6sy761_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(s6sy761_suspend, s6sy761_resume) + SET_RUNTIME_PM_OPS(s6sy761_runtime_suspend, + s6sy761_runtime_resume, NULL) +}; + +#ifdef CONFIG_OF +static const struct of_device_id s6sy761_of_match[] = { + { .compatible = "samsung,s6sy761", }, + { }, +}; +MODULE_DEVICE_TABLE(of, s6sy761_of_match); +#endif + +static const struct i2c_device_id s6sy761_id[] = { + { "s6sy761", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, s6sy761_id); + +static struct i2c_driver s6sy761_driver = { + .driver = { + .name = S6SY761_DEV_NAME, + .of_match_table = of_match_ptr(s6sy761_of_match), + .pm = &s6sy761_pm_ops, + }, + .probe = s6sy761_probe, + .remove = s6sy761_remove, + .id_table = s6sy761_id, +}; + +module_i2c_driver(s6sy761_driver); + +MODULE_AUTHOR("Andi Shyti "); +MODULE_DESCRIPTION("Samsung S6SY761 Touch Screen"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From b8b0d10c3a9b6ee94d56d0c3b162d05c177fb101 Mon Sep 17 00:00:00 2001 From: Olivier Moysan Date: Thu, 9 Nov 2017 15:07:57 +0100 Subject: ASoC: add mclk-fs to audio graph card binding Add mclk-fs support to audio graph card as initially supported in simple card. Signed-off-by: Olivier Moysan Acked-by: Kuninori Morimoto Signed-off-by: Mark Brown --- Documentation/devicetree/bindings/sound/audio-graph-card.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/sound/audio-graph-card.txt b/Documentation/devicetree/bindings/sound/audio-graph-card.txt index 6e6720aa33f1..d04ea3b1a1dd 100644 --- a/Documentation/devicetree/bindings/sound/audio-graph-card.txt +++ b/Documentation/devicetree/bindings/sound/audio-graph-card.txt @@ -17,6 +17,7 @@ Below are same as Simple-Card. - bitclock-master - bitclock-inversion - frame-inversion +- mclk-fs - dai-tdm-slot-num - dai-tdm-slot-width - clocks / system-clock-frequency -- cgit v1.2.3 From 83f5f7ed72f316eda4c4c3833beebfe6578926f4 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Wed, 8 Nov 2017 11:15:37 -0700 Subject: block: kill bio_kmap/kunmap_irq() There are no users of it anymore. Reviewed-by: Christoph Hellwig Signed-off-by: Jens Axboe --- Documentation/block/biodoc.txt | 4 ++-- include/linux/bio.h | 11 ----------- 2 files changed, 2 insertions(+), 13 deletions(-) (limited to 'Documentation') diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt index 9490f2845f06..01c0a03407cc 100644 --- a/Documentation/block/biodoc.txt +++ b/Documentation/block/biodoc.txt @@ -216,7 +216,7 @@ may need to abort DMA operations and revert to PIO for the transfer, in which case a virtual mapping of the page is required. For SCSI it is also done in some scenarios where the low level driver cannot be trusted to handle a single sg entry correctly. The driver is expected to perform the -kmaps as needed on such occasions using the __bio_kmap_atomic and bio_kmap_irq +kmaps as needed on such occasions using the bio_kmap_irq and friends routines as appropriate. A driver could also use the blk_queue_bounce() routine on its own to bounce highmem i/o to low memory for specific requests if so desired. @@ -1137,7 +1137,7 @@ use dma_map_sg for scatter gather) to be able to ship it to the driver. For PIO drivers (or drivers that need to revert to PIO transfer once in a while (IDE for example)), where the CPU is doing the actual data transfer a virtual mapping is needed. If the driver supports highmem I/O, -(Sec 1.1, (ii) ) it needs to use __bio_kmap_atomic and bio_kmap_irq to +(Sec 1.1, (ii) ) it needs to use __bio_kmap_atomic or similar to temporarily map a bio into the virtual address space. diff --git a/include/linux/bio.h b/include/linux/bio.h index 9c75f58f6a50..1d7e63d7505f 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -573,17 +573,6 @@ static inline void bvec_kunmap_irq(char *buffer, unsigned long *flags) } #endif -static inline char *__bio_kmap_irq(struct bio *bio, struct bvec_iter iter, - unsigned long *flags) -{ - return bvec_kmap_irq(&bio_iter_iovec(bio, iter), flags); -} -#define __bio_kunmap_irq(buf, flags) bvec_kunmap_irq(buf, flags) - -#define bio_kmap_irq(bio, flags) \ - __bio_kmap_irq((bio), (bio)->bi_iter, (flags)) -#define bio_kunmap_irq(buf,flags) __bio_kunmap_irq(buf, flags) - /* * BIO list management for use by remapping drivers (e.g. DM or MD) and loop. * -- cgit v1.2.3 From d004a5e7d4dd6335ce6e2044af42f5e0fbebb51d Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 8 Nov 2017 19:13:48 +0100 Subject: block: remove __bio_kmap_atomic This helper doesn't buy us much over calling kmap_atomic directly. In fact in the only caller it does a bit of useless work as the caller already has the bvec at hand, and said caller would even buggy for a multi-segment bio due to the use of this helper. So just remove it. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- Documentation/block/biodoc.txt | 11 +++++------ arch/xtensa/platforms/iss/simdisk.c | 4 ++-- block/blk-settings.c | 2 +- include/linux/bio.h | 12 ------------ 4 files changed, 8 insertions(+), 21 deletions(-) (limited to 'Documentation') diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt index 01c0a03407cc..86927029a52d 100644 --- a/Documentation/block/biodoc.txt +++ b/Documentation/block/biodoc.txt @@ -216,10 +216,9 @@ may need to abort DMA operations and revert to PIO for the transfer, in which case a virtual mapping of the page is required. For SCSI it is also done in some scenarios where the low level driver cannot be trusted to handle a single sg entry correctly. The driver is expected to perform the -kmaps as needed on such occasions using the bio_kmap_irq and friends -routines as appropriate. A driver could also use the blk_queue_bounce() -routine on its own to bounce highmem i/o to low memory for specific requests -if so desired. +kmaps as needed on such occasions as appropriate. A driver could also use +the blk_queue_bounce() routine on its own to bounce highmem i/o to low +memory for specific requests if so desired. iii. The i/o scheduler algorithm itself can be replaced/set as appropriate @@ -1137,8 +1136,8 @@ use dma_map_sg for scatter gather) to be able to ship it to the driver. For PIO drivers (or drivers that need to revert to PIO transfer once in a while (IDE for example)), where the CPU is doing the actual data transfer a virtual mapping is needed. If the driver supports highmem I/O, -(Sec 1.1, (ii) ) it needs to use __bio_kmap_atomic or similar to -temporarily map a bio into the virtual address space. +(Sec 1.1, (ii) ) it needs to use kmap_atomic or similar to temporarily map +a bio into the virtual address space. 8. Prior/Related/Impacted patches diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c index c45b90bb9339..eacf1e433518 100644 --- a/arch/xtensa/platforms/iss/simdisk.c +++ b/arch/xtensa/platforms/iss/simdisk.c @@ -110,13 +110,13 @@ static blk_qc_t simdisk_make_request(struct request_queue *q, struct bio *bio) sector_t sector = bio->bi_iter.bi_sector; bio_for_each_segment(bvec, bio, iter) { - char *buffer = __bio_kmap_atomic(bio, iter); + char *buffer = kmap_atomic(bvec.bv_page) + bvec.bv_offset; unsigned len = bvec.bv_len >> SECTOR_SHIFT; simdisk_transfer(dev, sector, len, buffer, bio_data_dir(bio) == WRITE); sector += len; - __bio_kunmap_atomic(buffer); + kunmap_atomic(buffer) } bio_endio(bio); diff --git a/block/blk-settings.c b/block/blk-settings.c index 8559e9563c52..48ebe6be07b7 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -157,7 +157,7 @@ EXPORT_SYMBOL(blk_set_stacking_limits); * Caveat: * The driver that does this *must* be able to deal appropriately * with buffers in "highmemory". This can be accomplished by either calling - * __bio_kmap_atomic() to get a temporary kernel mapping, or by calling + * kmap_atomic() to get a temporary kernel mapping, or by calling * blk_queue_bounce() to create a buffer in normal memory. **/ void blk_queue_make_request(struct request_queue *q, make_request_fn *mfn) diff --git a/include/linux/bio.h b/include/linux/bio.h index 1d7e63d7505f..d4eec19a6d3c 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -128,18 +128,6 @@ static inline void *bio_data(struct bio *bio) */ #define bvec_to_phys(bv) (page_to_phys((bv)->bv_page) + (unsigned long) (bv)->bv_offset) -/* - * queues that have highmem support enabled may still need to revert to - * PIO transfers occasionally and thus map high pages temporarily. For - * permanent PIO fall back, user is probably better off disabling highmem - * I/O completely on that queue (see ide-dma for example) - */ -#define __bio_kmap_atomic(bio, iter) \ - (kmap_atomic(bio_iter_iovec((bio), (iter)).bv_page) + \ - bio_iter_iovec((bio), (iter)).bv_offset) - -#define __bio_kunmap_atomic(addr) kunmap_atomic(addr) - /* * merge helpers etc */ -- cgit v1.2.3 From 2210d6b2f287d738eddf6b75f432126ce05450f8 Mon Sep 17 00:00:00 2001 From: Maciej Żenczykowski Date: Tue, 7 Nov 2017 21:52:09 -0800 Subject: net: ipv6: sysctl to specify IPv6 ND traffic class MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add a per-device sysctl to specify the default traffic class to use for kernel originated IPv6 Neighbour Discovery packets. Currently this includes: - Router Solicitation (ICMPv6 type 133) ndisc_send_rs() -> ndisc_send_skb() -> ip6_nd_hdr() - Neighbour Solicitation (ICMPv6 type 135) ndisc_send_ns() -> ndisc_send_skb() -> ip6_nd_hdr() - Neighbour Advertisement (ICMPv6 type 136) ndisc_send_na() -> ndisc_send_skb() -> ip6_nd_hdr() - Redirect (ICMPv6 type 137) ndisc_send_redirect() -> ndisc_send_skb() -> ip6_nd_hdr() and if the kernel ever gets around to generating RA's, it would presumably also include: - Router Advertisement (ICMPv6 type 134) (radvd daemon could pick up on the kernel setting and use it) Interface drivers may examine the Traffic Class value and translate the DiffServ Code Point into a link-layer appropriate traffic prioritization scheme. An example of mapping IETF DSCP values to IEEE 802.11 User Priority values can be found here: https://tools.ietf.org/html/draft-ietf-tsvwg-ieee-802-11 The expected primary use case is to properly prioritize ND over wifi. Testing: jzem22:~# cat /proc/sys/net/ipv6/conf/eth0/ndisc_tclass 0 jzem22:~# echo -1 > /proc/sys/net/ipv6/conf/eth0/ndisc_tclass -bash: echo: write error: Invalid argument jzem22:~# echo 256 > /proc/sys/net/ipv6/conf/eth0/ndisc_tclass -bash: echo: write error: Invalid argument jzem22:~# echo 0 > /proc/sys/net/ipv6/conf/eth0/ndisc_tclass jzem22:~# echo 255 > /proc/sys/net/ipv6/conf/eth0/ndisc_tclass jzem22:~# cat /proc/sys/net/ipv6/conf/eth0/ndisc_tclass 255 jzem22:~# echo 34 > /proc/sys/net/ipv6/conf/eth0/ndisc_tclass jzem22:~# cat /proc/sys/net/ipv6/conf/eth0/ndisc_tclass 34 jzem22:~# echo $[0xDC] > /proc/sys/net/ipv6/conf/eth0/ndisc_tclass jzem22:~# tcpdump -v -i eth0 icmp6 and src host jzem22.pgc and dst host fe80::1 tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes IP6 (class 0xdc, hlim 255, next-header ICMPv6 (58) payload length: 24) jzem22.pgc > fe80::1: [icmp6 sum ok] ICMP6, neighbor advertisement, length 24, tgt is jzem22.pgc, Flags [solicited] (based on original change written by Erik Kline, with minor changes) v2: fix 'suspicious rcu_dereference_check() usage' by explicitly grabbing the rcu_read_lock. Cc: Lorenzo Colitti Signed-off-by: Erik Kline Signed-off-by: Maciej Żenczykowski Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 9 +++++++++ include/linux/ipv6.h | 1 + include/uapi/linux/ipv6.h | 1 + net/ipv6/addrconf.c | 11 +++++++++++ net/ipv6/ndisc.c | 9 ++++++++- 5 files changed, 30 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 54410a1d4065..d8676dda7fa6 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -1732,6 +1732,15 @@ ndisc_notify - BOOLEAN 1 - Generate unsolicited neighbour advertisements when device is brought up or hardware address changes. +ndisc_tclass - INTEGER + The IPv6 Traffic Class to use by default when sending IPv6 Neighbor + Discovery (Router Solicitation, Router Advertisement, Neighbor + Solicitation, Neighbor Advertisement, Redirect) messages. + These 8 bits can be interpreted as 6 high order bits holding the DSCP + value and 2 low order bits representing ECN (which you probably want + to leave cleared). + 0 - (default) + mldv1_unsolicited_report_interval - INTEGER The interval in milliseconds in which the next unsolicited MLDv1 report retransmit will take place. diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index ea04ca024f0d..cb18c6290ca8 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -73,6 +73,7 @@ struct ipv6_devconf { __u32 enhanced_dad; __u32 addr_gen_mode; __s32 disable_policy; + __s32 ndisc_tclass; struct ctl_table_header *sysctl_header; }; diff --git a/include/uapi/linux/ipv6.h b/include/uapi/linux/ipv6.h index b22a9c4e1b12..9c0f4a92bcff 100644 --- a/include/uapi/linux/ipv6.h +++ b/include/uapi/linux/ipv6.h @@ -186,6 +186,7 @@ enum { DEVCONF_ADDR_GEN_MODE, DEVCONF_DISABLE_POLICY, DEVCONF_ACCEPT_RA_RT_INFO_MIN_PLEN, + DEVCONF_NDISC_TCLASS, DEVCONF_MAX }; diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 6233e06fa35c..a6dffd65eb9d 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -5059,6 +5059,7 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf, array[DEVCONF_ENHANCED_DAD] = cnf->enhanced_dad; array[DEVCONF_ADDR_GEN_MODE] = cnf->addr_gen_mode; array[DEVCONF_DISABLE_POLICY] = cnf->disable_policy; + array[DEVCONF_NDISC_TCLASS] = cnf->ndisc_tclass; } static inline size_t inet6_ifla6_size(void) @@ -5986,6 +5987,7 @@ int addrconf_sysctl_disable_policy(struct ctl_table *ctl, int write, } static int minus_one = -1; +static const int zero = 0; static const int one = 1; static const int two_five_five = 255; @@ -6356,6 +6358,15 @@ static const struct ctl_table addrconf_sysctl[] = { .mode = 0644, .proc_handler = addrconf_sysctl_disable_policy, }, + { + .procname = "ndisc_tclass", + .data = &ipv6_devconf.ndisc_tclass, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = (void *)&zero, + .extra2 = (void *)&two_five_five, + }, { /* sentinel */ } diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index f9c3ffe04382..b3cea200c85e 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -427,12 +427,19 @@ static void ip6_nd_hdr(struct sk_buff *skb, int hop_limit, int len) { struct ipv6hdr *hdr; + struct inet6_dev *idev; + unsigned tclass; + + rcu_read_lock(); + idev = __in6_dev_get(skb->dev); + tclass = idev ? idev->cnf.ndisc_tclass : 0; + rcu_read_unlock(); skb_push(skb, sizeof(*hdr)); skb_reset_network_header(skb); hdr = ipv6_hdr(skb); - ip6_flow_hdr(hdr, 0, 0); + ip6_flow_hdr(hdr, tclass, 0); hdr->payload_len = htons(len); hdr->nexthdr = IPPROTO_ICMPV6; -- cgit v1.2.3 From 713bafea92920103cd3d361657406cf04d0e22dd Mon Sep 17 00:00:00 2001 From: Yuchung Cheng Date: Wed, 8 Nov 2017 13:01:26 -0800 Subject: tcp: retire FACK loss detection FACK loss detection has been disabled by default and the successor RACK subsumed FACK and can handle reordering better. This patch removes FACK to simplify TCP loss recovery. Signed-off-by: Yuchung Cheng Reviewed-by: Eric Dumazet Reviewed-by: Neal Cardwell Reviewed-by: Soheil Hassas Yeganeh Reviewed-by: Priyaranjan Jha Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 3 +- include/linux/tcp.h | 1 - include/net/tcp.h | 14 +-------- include/uapi/linux/snmp.h | 1 - net/ipv4/proc.c | 1 - net/ipv4/tcp.c | 2 -- net/ipv4/tcp_input.c | 53 +++++----------------------------- net/ipv4/tcp_metrics.c | 4 +-- net/ipv4/tcp_minisocks.c | 5 +--- net/ipv4/tcp_output.c | 5 +--- 10 files changed, 12 insertions(+), 77 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index d8676dda7fa6..46c7e1085efc 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -289,8 +289,7 @@ tcp_ecn_fallback - BOOLEAN Default: 1 (fallback enabled) tcp_fack - BOOLEAN - Enable FACK congestion avoidance and fast retransmission. - The value is not used, if tcp_sack is not enabled. + This is a legacy option, it has no effect anymore. tcp_fin_timeout - INTEGER The length of time an orphaned (no longer referenced by any diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 22f40c96a15b..9574936fe041 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -85,7 +85,6 @@ struct tcp_sack_block { /*These are used to set the sack_ok field in struct tcp_options_received */ #define TCP_SACK_SEEN (1 << 0) /*1 = peer is SACK capable, */ -#define TCP_FACK_ENABLED (1 << 1) /*1 = FACK is enabled locally*/ #define TCP_DSACK_SEEN (1 << 2) /*1 = DSACK was received from peer*/ struct tcp_options_received { diff --git a/include/net/tcp.h b/include/net/tcp.h index 2f2c69ad31b2..ed71511e67a6 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -384,7 +384,6 @@ void tcp_update_metrics(struct sock *sk); void tcp_init_metrics(struct sock *sk); void tcp_metrics_init(void); bool tcp_peer_is_proven(struct request_sock *req, struct dst_entry *dst); -void tcp_disable_fack(struct tcp_sock *tp); void tcp_close(struct sock *sk, long timeout); void tcp_init_sock(struct sock *sk); void tcp_init_transfer(struct sock *sk, int bpf_op); @@ -776,7 +775,7 @@ struct tcp_skb_cb { }; __u8 tcp_flags; /* TCP header flags. (tcp[13]) */ - __u8 sacked; /* State flags for SACK/FACK. */ + __u8 sacked; /* State flags for SACK. */ #define TCPCB_SACKED_ACKED 0x01 /* SKB ACK'd by a SACK block */ #define TCPCB_SACKED_RETRANS 0x02 /* SKB retransmitted */ #define TCPCB_LOST 0x04 /* SKB is lost */ @@ -1066,7 +1065,6 @@ void tcp_rate_check_app_limited(struct sock *sk); * * tcp_is_sack - SACK enabled * tcp_is_reno - No SACK - * tcp_is_fack - FACK enabled, implies SACK enabled */ static inline int tcp_is_sack(const struct tcp_sock *tp) { @@ -1078,16 +1076,6 @@ static inline bool tcp_is_reno(const struct tcp_sock *tp) return !tcp_is_sack(tp); } -static inline bool tcp_is_fack(const struct tcp_sock *tp) -{ - return tp->rx_opt.sack_ok & TCP_FACK_ENABLED; -} - -static inline void tcp_enable_fack(struct tcp_sock *tp) -{ - tp->rx_opt.sack_ok |= TCP_FACK_ENABLED; -} - static inline unsigned int tcp_left_out(const struct tcp_sock *tp) { return tp->sacked_out + tp->lost_out; diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h index 0d941cdd8e8c..33a70ece462f 100644 --- a/include/uapi/linux/snmp.h +++ b/include/uapi/linux/snmp.h @@ -191,7 +191,6 @@ enum LINUX_MIB_TCPRENORECOVERY, /* TCPRenoRecovery */ LINUX_MIB_TCPSACKRECOVERY, /* TCPSackRecovery */ LINUX_MIB_TCPSACKRENEGING, /* TCPSACKReneging */ - LINUX_MIB_TCPFACKREORDER, /* TCPFACKReorder */ LINUX_MIB_TCPSACKREORDER, /* TCPSACKReorder */ LINUX_MIB_TCPRENOREORDER, /* TCPRenoReorder */ LINUX_MIB_TCPTSREORDER, /* TCPTSReorder */ diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c index 127153f1ed8a..9f37c4727861 100644 --- a/net/ipv4/proc.c +++ b/net/ipv4/proc.c @@ -212,7 +212,6 @@ static const struct snmp_mib snmp4_net_list[] = { SNMP_MIB_ITEM("TCPRenoRecovery", LINUX_MIB_TCPRENORECOVERY), SNMP_MIB_ITEM("TCPSackRecovery", LINUX_MIB_TCPSACKRECOVERY), SNMP_MIB_ITEM("TCPSACKReneging", LINUX_MIB_TCPSACKRENEGING), - SNMP_MIB_ITEM("TCPFACKReorder", LINUX_MIB_TCPFACKREORDER), SNMP_MIB_ITEM("TCPSACKReorder", LINUX_MIB_TCPSACKREORDER), SNMP_MIB_ITEM("TCPRenoReorder", LINUX_MIB_TCPRENOREORDER), SNMP_MIB_ITEM("TCPTSReorder", LINUX_MIB_TCPTSREORDER), diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index bc71a27d5ad9..337555076043 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -2509,8 +2509,6 @@ static int tcp_repair_options_est(struct sock *sk, return -EINVAL; tp->rx_opt.sack_ok |= TCP_SACK_SEEN; - if (sock_net(sk)->ipv4.sysctl_tcp_fack) - tcp_enable_fack(tp); break; case TCPOPT_TIMESTAMP: if (opt.opt_val != 0) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 9ceaa1fdc3ab..487e181cff86 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -842,18 +842,6 @@ __u32 tcp_init_cwnd(const struct tcp_sock *tp, const struct dst_entry *dst) return min_t(__u32, cwnd, tp->snd_cwnd_clamp); } -/* - * Packet counting of FACK is based on in-order assumptions, therefore TCP - * disables it when reordering is detected - */ -void tcp_disable_fack(struct tcp_sock *tp) -{ - /* RFC3517 uses different metric in lost marker => reset on change */ - if (tcp_is_fack(tp)) - tp->lost_skb_hint = NULL; - tp->rx_opt.sack_ok &= ~TCP_FACK_ENABLED; -} - /* Take a notice that peer is sending D-SACKs */ static void tcp_dsack_seen(struct tcp_sock *tp) { @@ -881,7 +869,6 @@ static void tcp_update_reordering(struct sock *sk, const int metric, tp->sacked_out, tp->undo_marker ? tp->undo_retrans : 0); #endif - tcp_disable_fack(tp); } tp->rack.reord = 1; @@ -891,8 +878,6 @@ static void tcp_update_reordering(struct sock *sk, const int metric, mib_idx = LINUX_MIB_TCPTSREORDER; else if (tcp_is_reno(tp)) mib_idx = LINUX_MIB_TCPRENOREORDER; - else if (tcp_is_fack(tp)) - mib_idx = LINUX_MIB_TCPFACKREORDER; else mib_idx = LINUX_MIB_TCPSACKREORDER; @@ -970,7 +955,6 @@ void tcp_skb_mark_lost_uncond_verify(struct tcp_sock *tp, struct sk_buff *skb) * 3. Loss detection event of two flavors: * A. Scoreboard estimator decided the packet is lost. * A'. Reno "three dupacks" marks head of queue lost. - * A''. Its FACK modification, head until snd.fack is lost. * B. SACK arrives sacking SND.NXT at the moment, when the * segment was retransmitted. * 4. D-SACK added new rule: D-SACK changes any tag to S. @@ -1248,7 +1232,7 @@ static u8 tcp_sacktag_one(struct sock *sk, fack_count += pcount; /* Lost marker hint past SACKed? Tweak RFC3517 cnt */ - if (!tcp_is_fack(tp) && tp->lost_skb_hint && + if (tp->lost_skb_hint && before(start_seq, TCP_SKB_CB(tp->lost_skb_hint)->seq)) tp->lost_cnt_hint += pcount; @@ -2051,10 +2035,6 @@ static inline int tcp_fackets_out(const struct tcp_sock *tp) * counter when SACK is enabled (without SACK, sacked_out is used for * that purpose). * - * Instead, with FACK TCP uses fackets_out that includes both SACKed - * segments up to the highest received SACK block so far and holes in - * between them. - * * With reordering, holes may still be in flight, so RFC3517 recovery * uses pure sacked_out (total number of SACKed segments) even though * it violates the RFC that uses duplicate ACKs, often these are equal @@ -2064,10 +2044,10 @@ static inline int tcp_fackets_out(const struct tcp_sock *tp) */ static inline int tcp_dupack_heuristics(const struct tcp_sock *tp) { - return tcp_is_fack(tp) ? tp->fackets_out : tp->sacked_out + 1; + return tp->sacked_out + 1; } -/* Linux NewReno/SACK/FACK/ECN state machine. +/* Linux NewReno/SACK/ECN state machine. * -------------------------------------- * * "Open" Normal state, no dubious events, fast path. @@ -2132,16 +2112,6 @@ static inline int tcp_dupack_heuristics(const struct tcp_sock *tp) * dynamically measured and adjusted. This is implemented in * tcp_rack_mark_lost. * - * FACK (Disabled by default. Subsumbed by RACK): - * It is the simplest heuristics. As soon as we decided - * that something is lost, we decide that _all_ not SACKed - * packets until the most forward SACK are lost. I.e. - * lost_out = fackets_out - sacked_out and left_out = fackets_out. - * It is absolutely correct estimate, if network does not reorder - * packets. And it loses any connection to reality when reordering - * takes place. We use FACK by default until reordering - * is suspected on the path to this destination. - * * If the receiver does not support SACK: * * NewReno (RFC6582): in Recovery we assume that one segment @@ -2190,7 +2160,7 @@ static bool tcp_time_to_recover(struct sock *sk, int flag) } /* Detect loss in event "A" above by marking head of queue up as lost. - * For FACK or non-SACK(Reno) senders, the first "packets" number of segments + * For non-SACK(Reno) senders, the first "packets" number of segments * are considered lost. For RFC3517 SACK, a segment is considered lost if it * has at least tp->reordering SACKed seqments above it; "packets" refers to * the maximum SACKed segments to pass before reaching this limit. @@ -2226,12 +2196,12 @@ static void tcp_mark_head_lost(struct sock *sk, int packets, int mark_head) break; oldcnt = cnt; - if (tcp_is_fack(tp) || tcp_is_reno(tp) || + if (tcp_is_reno(tp) || (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_ACKED)) cnt += tcp_skb_pcount(skb); if (cnt > packets) { - if ((tcp_is_sack(tp) && !tcp_is_fack(tp)) || + if (tcp_is_sack(tp) || (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_ACKED) || (oldcnt >= packets)) break; @@ -2262,11 +2232,6 @@ static void tcp_update_scoreboard(struct sock *sk, int fast_rexmit) if (tcp_is_reno(tp)) { tcp_mark_head_lost(sk, 1, 1); - } else if (tcp_is_fack(tp)) { - int lost = tp->fackets_out - tp->reordering; - if (lost <= 0) - lost = 1; - tcp_mark_head_lost(sk, lost, 0); } else { int sacked_upto = tp->sacked_out - tp->reordering; if (sacked_upto >= 0) @@ -3199,8 +3164,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets, if (reord < prior_fackets && reord <= tp->fackets_out) tcp_update_reordering(sk, tp->fackets_out - reord, 0); - delta = tcp_is_fack(tp) ? pkts_acked : - prior_sacked - tp->sacked_out; + delta = prior_sacked - tp->sacked_out; tp->lost_cnt_hint -= min(tp->lost_cnt_hint, delta); } @@ -5708,9 +5672,6 @@ static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb, tp->tcp_header_len = sizeof(struct tcphdr); } - if (tcp_is_sack(tp) && sock_net(sk)->ipv4.sysctl_tcp_fack) - tcp_enable_fack(tp); - tcp_sync_mss(sk, icsk->icsk_pmtu_cookie); tcp_initialize_rcv_mss(sk); diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c index 9d5ddebfd831..7097f92d16e5 100644 --- a/net/ipv4/tcp_metrics.c +++ b/net/ipv4/tcp_metrics.c @@ -470,10 +470,8 @@ void tcp_init_metrics(struct sock *sk) tp->snd_ssthresh = TCP_INFINITE_SSTHRESH; } val = tcp_metric_get(tm, TCP_METRIC_REORDERING); - if (val && tp->reordering != val) { - tcp_disable_fack(tp); + if (val && tp->reordering != val) tp->reordering = val; - } crtt = tcp_metric_get(tm, TCP_METRIC_RTT); rcu_read_unlock(); diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index 4bb86580decd..326c9282bf94 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -509,10 +509,7 @@ struct sock *tcp_create_openreq_child(const struct sock *sk, keepalive_time_when(newtp)); newtp->rx_opt.tstamp_ok = ireq->tstamp_ok; - if ((newtp->rx_opt.sack_ok = ireq->sack_ok) != 0) { - if (sock_net(sk)->ipv4.sysctl_tcp_fack) - tcp_enable_fack(newtp); - } + newtp->rx_opt.sack_ok = ireq->sack_ok; newtp->window_clamp = req->rsk_window_clamp; newtp->rcv_ssthresh = req->rsk_rcv_wnd; newtp->rcv_wnd = req->rsk_rcv_wnd; diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 9b98d35aa0d8..094c429b4401 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -1257,7 +1257,7 @@ static void tcp_adjust_pcount(struct sock *sk, const struct sk_buff *skb, int de if (tp->lost_skb_hint && before(TCP_SKB_CB(skb)->seq, TCP_SKB_CB(tp->lost_skb_hint)->seq) && - (tcp_is_fack(tp) || (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_ACKED))) + (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_ACKED)) tp->lost_cnt_hint -= decr; tcp_verify_left_out(tp); @@ -2961,9 +2961,6 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs) * retransmitted data is acknowledged. It tries to continue * resending the rest of the retransmit queue, until either * we've sent it all or the congestion window limit is reached. - * If doing SACK, the first ACK which comes back for a timeout - * based retransmit packet might feed us FACK information again. - * If so, we use it to avoid unnecessarily retransmissions. */ void tcp_xmit_retransmit_queue(struct sock *sk) { -- cgit v1.2.3 From 3ec26c7944a405e9dbd21b31ff46a3b4e6095adb Mon Sep 17 00:00:00 2001 From: Niklas Cassel Date: Thu, 9 Nov 2017 18:09:26 +0100 Subject: bindings: net: stmmac: correctify note about LPI interrupt There are two different combined signal for various interrupt events: In EQOS-CORE and EQOS-MTL configurations, mci_intr_o is the interrupt signal. In EQOS-DMA, EQOS-AHB and EQOS-AXI configurations, these interrupt events are combined with the events in the DMA on the sbd_intr_o signal. Depending on configuration, the device tree irq "macirq" will refer to either mci_intr_o or sbd_intr_o. The databook states: "The MAC generates the LPI interrupt when the Tx or Rx side enters or exits the LPI state. The interrupt mci_intr_o (sbd_intr_o in certain configurations) is asserted when the LPI interrupt status is set. When the MAC exits the Rx LPI state, then in addition to the mci_intr_o (sbd_intr_o in certain configurations), the sideband signal lpi_intr_o is asserted. If you do not want to gate-off the application clock during the Rx LPI state, you can leave the lpi_intr_o signal unconnected and use the mci_intr_o (sbd_intr_o in certain configurations) signal to detect Rx LPI exit." Since the "macirq" is always raised when Tx or Rx enters/exits the LPI state, "eth_lpi" must therefore refer to lpi_intr_o, which is only raised when Rx exits the LPI state. Update the DT binding description to reflect reality. Signed-off-by: Niklas Cassel Acked-by: Alexandre TORGUE Signed-off-by: David S. Miller --- Documentation/devicetree/bindings/net/stmmac.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt index c3a7be6615c5..3a28a5d8857d 100644 --- a/Documentation/devicetree/bindings/net/stmmac.txt +++ b/Documentation/devicetree/bindings/net/stmmac.txt @@ -12,7 +12,7 @@ Required properties: Valid interrupt names are: - "macirq" (combined signal for various interrupt events) - "eth_wake_irq" (the interrupt to manage the remote wake-up packet detection) - - "eth_lpi" (the interrupt that occurs when Tx or Rx enters/exits LPI state) + - "eth_lpi" (the interrupt that occurs when Rx exits the LPI state) - phy-mode: See ethernet.txt file in the same directory. - snps,reset-gpio gpio number for phy reset. - snps,reset-active-low boolean flag to indicate if phy reset is active low. -- cgit v1.2.3 From 4b33709d894f2f058566ac06d9769dbc5617268d Mon Sep 17 00:00:00 2001 From: Egil Hjelmeland Date: Wed, 8 Nov 2017 11:55:14 +0100 Subject: net: dsa: lan9303: Documentation: Add missing word "Mbps" Signed-off-by: Egil Hjelmeland Signed-off-by: David S. Miller --- Documentation/networking/dsa/lan9303.txt | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/dsa/lan9303.txt b/Documentation/networking/dsa/lan9303.txt index ec28683d107d..144b02b95207 100644 --- a/Documentation/networking/dsa/lan9303.txt +++ b/Documentation/networking/dsa/lan9303.txt @@ -1,9 +1,9 @@ LAN9303 Ethernet switch driver ============================== -The LAN9303 is a three port 10/100 ethernet switch with integrated phys for the -two external ethernet ports. The third port is an RMII/MII interface to a host -master network interface (e.g. fixed link). +The LAN9303 is a three port 10/100 Mbps ethernet switch with integrated phys for +the two external ethernet ports. The third port is an RMII/MII interface to a +host master network interface (e.g. fixed link). Driver details -- cgit v1.2.3 From f4c09f87adfe31587aa4b2aea2cb2dbde2150f54 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Mon, 13 Nov 2017 09:39:01 +0100 Subject: cpu/hotplug: Get rid of CPU hotplug notifier leftovers The CPU hotplug notifiers are history. Remove the last reminders. Reported-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- .../fault-injection/notifier-error-inject.txt | 30 ---------------------- Documentation/power/suspend-and-cpuhotplug.txt | 9 +++---- include/linux/cpu.h | 27 ++++++++----------- 3 files changed, 14 insertions(+), 52 deletions(-) (limited to 'Documentation') diff --git a/Documentation/fault-injection/notifier-error-inject.txt b/Documentation/fault-injection/notifier-error-inject.txt index 83d3f4e43e91..e861d761de24 100644 --- a/Documentation/fault-injection/notifier-error-inject.txt +++ b/Documentation/fault-injection/notifier-error-inject.txt @@ -6,41 +6,11 @@ specified notifier chain callbacks. It is useful to test the error handling of notifier call chain failures which is rarely executed. There are kernel modules that can be used to test the following notifiers. - * CPU notifier * PM notifier * Memory hotplug notifier * powerpc pSeries reconfig notifier * Netdevice notifier -CPU notifier error injection module ------------------------------------ -This feature can be used to test the error handling of the CPU notifiers by -injecting artificial errors to CPU notifier chain callbacks. - -If the notifier call chain should be failed with some events notified, write -the error code to debugfs interface -/sys/kernel/debug/notifier-error-inject/cpu/actions//error - -Possible CPU notifier events to be failed are: - - * CPU_UP_PREPARE - * CPU_UP_PREPARE_FROZEN - * CPU_DOWN_PREPARE - * CPU_DOWN_PREPARE_FROZEN - -Example1: Inject CPU offline error (-1 == -EPERM) - - # cd /sys/kernel/debug/notifier-error-inject/cpu - # echo -1 > actions/CPU_DOWN_PREPARE/error - # echo 0 > /sys/devices/system/cpu/cpu1/online - bash: echo: write error: Operation not permitted - -Example2: inject CPU online error (-2 == -ENOENT) - - # echo -2 > actions/CPU_UP_PREPARE/error - # echo 1 > /sys/devices/system/cpu/cpu1/online - bash: echo: write error: No such file or directory - PM notifier error injection module ---------------------------------- This feature is controlled through debugfs interface diff --git a/Documentation/power/suspend-and-cpuhotplug.txt b/Documentation/power/suspend-and-cpuhotplug.txt index 2fc909502db5..31abd04b9572 100644 --- a/Documentation/power/suspend-and-cpuhotplug.txt +++ b/Documentation/power/suspend-and-cpuhotplug.txt @@ -232,7 +232,7 @@ d. Handling microcode update during suspend/hibernate: hibernate/restore cycle.] In the current design of the kernel however, during a CPU offline operation - as part of the suspend/hibernate cycle (the CPU_DEAD_FROZEN notification), + as part of the suspend/hibernate cycle (cpuhp_tasks_frozen is set), the existing copy of microcode image in the kernel is not freed up. And during the CPU online operations (during resume/restore), since the kernel finds that it already has copies of the microcode images for all the @@ -252,10 +252,9 @@ Yes, they are listed below: the _cpu_down() and _cpu_up() functions is *always* 0. This might not reflect the true current state of the system, since the tasks could have been frozen by an out-of-band event such as a suspend - operation in progress. Hence, it will lead to wrong notifications being - sent during the cpu online/offline events (eg, CPU_ONLINE notification - instead of CPU_ONLINE_FROZEN) which in turn will lead to execution of - inappropriate code by the callbacks registered for such CPU hotplug events. + operation in progress. Hence, the cpuhp_tasks_frozen variable will not + reflect the frozen state and the CPU hotplug callbacks which evaluate + that variable might execute the wrong code path. 2. If a regular CPU hotplug stress test happens to race with the freezer due to a suspend operation in progress at the same time, then we could hit the diff --git a/include/linux/cpu.h b/include/linux/cpu.h index cd4771b772c0..b6e4a598b2cd 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -55,24 +55,17 @@ extern void unregister_cpu(struct cpu *cpu); extern ssize_t arch_cpu_probe(const char *, size_t); extern ssize_t arch_cpu_release(const char *, size_t); #endif -struct notifier_block; - -#define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */ -#define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */ -#define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */ -#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug - * lock is dropped */ -#define CPU_BROKEN 0x000B /* CPU (unsigned)v did not die properly, - * perhaps due to preemption. */ - -/* Used for CPU hotplug events occurring while tasks are frozen due to a suspend - * operation in progress - */ -#define CPU_TASKS_FROZEN 0x0010 -#define CPU_ONLINE_FROZEN (CPU_ONLINE | CPU_TASKS_FROZEN) -#define CPU_UP_PREPARE_FROZEN (CPU_UP_PREPARE | CPU_TASKS_FROZEN) -#define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN) +/* + * These states are not related to the core CPU hotplug mechanism. They are + * used by various (sub)architectures to track internal state + */ +#define CPU_ONLINE 0x0002 /* CPU is up */ +#define CPU_UP_PREPARE 0x0003 /* CPU coming up */ +#define CPU_DEAD 0x0007 /* CPU dead */ +#define CPU_DEAD_FROZEN 0x0008 /* CPU timed out on unplug */ +#define CPU_POST_DEAD 0x0009 /* CPU successfully unplugged */ +#define CPU_BROKEN 0x000B /* CPU did not die properly */ #ifdef CONFIG_SMP extern bool cpuhp_tasks_frozen; -- cgit v1.2.3 From becfcc7e576eed03b93f412769573c93de550527 Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 2 Nov 2017 15:27:51 +0000 Subject: afs: Fix documentation on # vs % prefix in mount source specification The documentation that describes the #-prefix and the %-prefix used when specifying the source to mount is has the descriptions the wrong way round. Switch them over. Reported-by: Marc Dionne Signed-off-by: David Howells --- Documentation/filesystems/afs.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/afs.txt b/Documentation/filesystems/afs.txt index 060da408923b..ba99b5ac4fd8 100644 --- a/Documentation/filesystems/afs.txt +++ b/Documentation/filesystems/afs.txt @@ -91,8 +91,8 @@ Filesystems can be mounted anywhere by commands similar to the following: mount -t afs "#root.cell." /afs/cambridge Where the initial character is either a hash or a percent symbol depending on -whether you definitely want a R/W volume (hash) or whether you'd prefer a R/O -volume, but are willing to use a R/W volume instead (percent). +whether you definitely want a R/W volume (percent) or whether you'd prefer a +R/O volume, but are willing to use a R/W volume instead (hash). The name of the volume can be suffixes with ".backup" or ".readonly" to specify connection to only volumes of those types. -- cgit v1.2.3 From 7087cb8fad5e19113d82f47f351fc6b338948d5f Mon Sep 17 00:00:00 2001 From: Chris Gorman Date: Mon, 13 Nov 2017 12:41:23 -0500 Subject: Documentation: sound: hd-audio: notes.rst Fixed reference to file HD-Audio-Models.rst which has been moved to hd-audio/models.rst Signed-off-by: Chris Gorman Signed-off-by: Takashi Iwai --- Documentation/sound/hd-audio/notes.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/sound/hd-audio/notes.rst b/Documentation/sound/hd-audio/notes.rst index f59c3cdbfaf4..9f7347830ba4 100644 --- a/Documentation/sound/hd-audio/notes.rst +++ b/Documentation/sound/hd-audio/notes.rst @@ -192,7 +192,7 @@ preset model instead of PCI (and codec-) SSID look-up. What ``model`` option values are available depends on the codec chip. Check your codec chip from the codec proc file (see "Codec Proc-File" section below). It will show the vendor/product name of your codec -chip. Then, see Documentation/sound/HD-Audio-Models.rst file, +chip. Then, see Documentation/sound/hd-audio/models.rst file, the section of HD-audio driver. You can find a list of codecs and ``model`` options belonging to each codec. For example, for Realtek ALC262 codec chip, pass ``model=ultra`` for devices that are compatible -- cgit v1.2.3 From aa25e446ce76c37bfd75ac06598c316af94e9a26 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 9 Nov 2017 16:00:55 -0600 Subject: dt-bindings: usb: add #phy-cells to usb-nop-xceiv Consumers of usb-nop-xceiv use the phy binding, but #phy-cells is missing from the binding. This is probably because this binding predates the common phy binding. So add #phy-cells as a required property. This should not break any users as missing should be treated as 0 cells. Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt b/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt index 5be01c859b7a..4dc6a8ee3071 100644 --- a/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt +++ b/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt @@ -2,6 +2,7 @@ USB NOP PHY Required properties: - compatible: should be usb-nop-xceiv +- #phy-cells: Must be 0 Optional properties: - clocks: phandle to the PHY clock. Use as per Documentation/devicetree @@ -33,6 +34,7 @@ Example: reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>; vbus-detect-gpio = <&gpio2 13 GPIO_ACTIVE_HIGH>; vbus-regulator = <&vbus_regulator>; + #phy-cells = <0>; }; hsusb1_phy is a NOP USB PHY device that gets its clock from an oscillator -- cgit v1.2.3 From 3ba88c477bac891a53ba5a0efb351285297a5e5b Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Mon, 13 Nov 2017 07:18:45 +0900 Subject: net: Extend Kernel GTP-U tunneling documentation * clarify specification references for v0/v1 * add section "APN vs. Network device" * add section "Local GTP-U entity and tunnel identification" Signed-off-by: Andreas Schultz Signed-off-by: Harald Welte Signed-off-by: David S. Miller --- Documentation/networking/gtp.txt | 103 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 99 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/gtp.txt b/Documentation/networking/gtp.txt index 93e96750f103..0d9c18f05ec6 100644 --- a/Documentation/networking/gtp.txt +++ b/Documentation/networking/gtp.txt @@ -1,6 +1,7 @@ The Linux kernel GTP tunneling module ====================================================================== -Documentation by Harald Welte +Documentation by Harald Welte and + Andreas Schultz In 'drivers/net/gtp.c' you are finding a kernel-level implementation of a GTP tunnel endpoint. @@ -91,9 +92,13 @@ http://git.osmocom.org/libgtpnl/ == Protocol Versions == -There are two different versions of GTP-U: v0 and v1. Both are -implemented in the Kernel GTP module. Version 0 is a legacy version, -and deprecated from recent 3GPP specifications. +There are two different versions of GTP-U: v0 [GSM TS 09.60] and v1 +[3GPP TS 29.281]. Both are implemented in the Kernel GTP module. +Version 0 is a legacy version, and deprecated from recent 3GPP +specifications. + +GTP-U uses UDP for transporting PDUs. The receiving UDP port is 2151 +for GTPv1-U and 3386 for GTPv0-U. There are three versions of GTP-C: v0, v1, and v2. As the kernel doesn't implement GTP-C, we don't have to worry about this. It's the @@ -133,3 +138,93 @@ doe to a lack of user interest, it never got merged. In 2015, Andreas Schultz came to the rescue and fixed lots more bugs, extended it with new features and finally pushed all of us to get it mainline, where it was merged in 4.7.0. + +== Architectural Details == + +=== Local GTP-U entity and tunnel identification === + +GTP-U uses UDP for transporting PDU's. The receiving UDP port is 2152 +for GTPv1-U and 3386 for GTPv0-U. + +There is only one GTP-U entity (and therefor SGSN/GGSN/S-GW/PDN-GW +instance) per IP address. Tunnel Endpoint Identifier (TEID) are unique +per GTP-U entity. + +A specific tunnel is only defined by the destination entity. Since the +destination port is constant, only the destination IP and TEID define +a tunnel. The source IP and Port have no meaning for the tunnel. + +Therefore: + + * when sending, the remote entity is defined by the remote IP and + the tunnel endpoint id. The source IP and port have no meaning and + can be changed at any time. + + * when receiving the local entity is defined by the local + destination IP and the tunnel endpoint id. The source IP and port + have no meaning and can change at any time. + +[3GPP TS 29.281] Section 4.3.0 defines this so: + +> The TEID in the GTP-U header is used to de-multiplex traffic +> incoming from remote tunnel endpoints so that it is delivered to the +> User plane entities in a way that allows multiplexing of different +> users, different packet protocols and different QoS levels. +> Therefore no two remote GTP-U endpoints shall send traffic to a +> GTP-U protocol entity using the same TEID value except +> for data forwarding as part of mobility procedures. + +The definition above only defines that two remote GTP-U endpoints +*should not* send to the same TEID, it *does not* forbid or exclude +such a scenario. In fact, the mentioned mobility procedures make it +necessary that the GTP-U entity accepts traffic for TEIDs from +multiple or unknown peers. + +Therefore, the receiving side identifies tunnels exclusively based on +TEIDs, not based on the source IP! + +== APN vs. Network Device == + +The GTP-U driver creates a Linux network device for each Gi/SGi +interface. + +[3GPP TS 29.281] calls the Gi/SGi reference point an interface. This +may lead to the impression that the GGSN/P-GW can have only one such +interface. + +Correct is that the Gi/SGi reference point defines the interworking +between +the 3GPP packet domain (PDN) based on GTP-U tunnel and IP +based networks. + +There is no provision in any of the 3GPP documents that limits the +number of Gi/SGi interfaces implemented by a GGSN/P-GW. + +[3GPP TS 29.061] Section 11.3 makes it clear that the selection of a +specific Gi/SGi interfaces is made through the Access Point Name +(APN): + +> 2. each private network manages its own addressing. In general this +> will result in different private networks having overlapping +> address ranges. A logically separate connection (e.g. an IP in IP +> tunnel or layer 2 virtual circuit) is used between the GGSN/P-GW +> and each private network. +> +> In this case the IP address alone is not necessarily unique. The +> pair of values, Access Point Name (APN) and IPv4 address and/or +> IPv6 prefixes, is unique. + +In order to support the overlapping address range use case, each APN +is mapped to a separate Gi/SGi interface (network device). + +NOTE: The Access Point Name is purely a control plane (GTP-C) concept. +At the GTP-U level, only Tunnel Endpoint Identifiers are present in +GTP-U packets and network devices are known + +Therefore for a given UE the mapping in IP to PDN network is: + * network device + MS IP -> Peer IP + Peer TEID, + +and from PDN to IP network: + * local GTP-U IP + TEID -> network device + +Furthermore, before a received T-PDU is injected into the network +device the MS IP is checked against the IP recorded in PDP context. -- cgit v1.2.3 From 8983487f5e4e377cfc873160f4b557907debd286 Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Mon, 13 Nov 2017 07:21:34 +0900 Subject: net: Mention net-next status web page in netdev-FAQ.txt According to https://www.mail-archive.com/netdev@vger.kernel.org/msg177411.html there is a status page available at http://vger.kernel.org/~davem/net-next.html to obtain the current status of the net-next tree. Let's add this information to the netdev FAQ. Signed-off-by: Harald Welte Signed-off-by: David S. Miller --- Documentation/networking/netdev-FAQ.txt | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/networking/netdev-FAQ.txt b/Documentation/networking/netdev-FAQ.txt index cfc66ea72329..2a3278d5cf35 100644 --- a/Documentation/networking/netdev-FAQ.txt +++ b/Documentation/networking/netdev-FAQ.txt @@ -64,7 +64,10 @@ A: To understand this, you need to know a bit of background information If you aren't subscribed to netdev and/or are simply unsure if net-next has re-opened yet, simply check the net-next git repository link above for - any new networking-related commits. + any new networking-related commits. You may also check the following + website for the current status: + + http://vger.kernel.org/~davem/net-next.html The "net" tree continues to collect fixes for the vX.Y content, and is fed back to Linus at regular (~weekly) intervals. Meaning that the -- cgit v1.2.3 From 68017e5d87a2477d40476f1a0a06f202ee79316b Mon Sep 17 00:00:00 2001 From: Paolo Valente Date: Mon, 13 Nov 2017 07:34:07 +0100 Subject: doc, block, bfq: update max IOPS sustainable with BFQ We have investigated more deeply the performance of BFQ, in terms of number of IOPS that can be processed by the CPU when BFQ is used as I/O scheduler. In more detail, using the script [1], we have measured the number of IOPS reached on top of a null block device configured with zero latency, as a function of the workload (sequential read, sequential write, random read, random write) and of the system (we considered desktops, laptops and embedded systems). Basing on the resulting figures, with this commit we update the current, conservative IOPS range reported in BFQ documentation. In particular, the documentation now reports, for each of three different systems, the lowest number of IOPS obtained for that system with the above test (namely, the value obtained with the workload leading to the lowest IOPS). [1] https://github.com/Algodev-github/IOSpeed Reviewed-by: Lee Tibbert Signed-off-by: Paolo Valente Signed-off-by: Luca Miccio Signed-off-by: Jens Axboe --- Documentation/block/bfq-iosched.txt | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/block/bfq-iosched.txt b/Documentation/block/bfq-iosched.txt index 3d6951d63489..7a9361508157 100644 --- a/Documentation/block/bfq-iosched.txt +++ b/Documentation/block/bfq-iosched.txt @@ -20,12 +20,17 @@ for that device, by setting low_latency to 0. See Section 3 for details on how to configure BFQ for the desired tradeoff between latency and throughput, or on how to maximize throughput. -On average CPUs, the current version of BFQ can handle devices -performing at most ~30K IOPS; at most ~50 KIOPS on faster CPUs. As a -reference, 30-50 KIOPS correspond to very high bandwidths with -sequential I/O (e.g., 8-12 GB/s if I/O requests are 256 KB large), and -to 120-200 MB/s with 4KB random I/O. BFQ is currently being tested on -multi-queue devices too. +BFQ has a non-null overhead, which limits the maximum IOPS that the +CPU can process for a device scheduled with BFQ. To give an idea of +the limits on slow or average CPUs, here are BFQ limits for three +different CPUs, on, respectively, an average laptop, an old desktop, +and a cheap embedded system, in case full hierarchical support is +enabled (i.e., CONFIG_BFQ_GROUP_IOSCHED is set): +- Intel i7-4850HQ: 250 KIOPS +- AMD A8-3850: 170 KIOPS +- ARM CortexTM-A53 Octa-core: 45 KIOPS + +BFQ works for multi-queue devices too. The table of contents follow. Impatients can just jump to Section 3. -- cgit v1.2.3 From 24bfd19bb7890255693ee5cb6dc100d8d215d00b Mon Sep 17 00:00:00 2001 From: Paolo Valente Date: Mon, 13 Nov 2017 07:34:09 +0100 Subject: block, bfq: update blkio stats outside the scheduler lock bfq invokes various blkg_*stats_* functions to update the statistics contained in the special files blkio.bfq.* in the blkio controller groups, i.e., the I/O accounting related to the proportional-share policy provided by bfq. The execution of these functions takes a considerable percentage, about 40%, of the total per-request execution time of bfq (i.e., of the sum of the execution time of all the bfq functions that have to be executed to process an I/O request from its creation to its destruction). This reduces the request-processing rate sustainable by bfq noticeably, even on a multicore CPU. In fact, the bfq functions that invoke blkg_*stats_* functions cannot be executed in parallel with the rest of the code of bfq, because both are executed under the same same per-device scheduler lock. To reduce this slowdown, this commit moves, wherever possible, the invocation of these functions (more precisely, of the bfq functions that invoke blkg_*stats_* functions) outside the critical sections protected by the scheduler lock. With this change, and with all blkio.bfq.* statistics enabled, the throughput grows, e.g., from 250 to 310 KIOPS (+25%) on an Intel i7-4850HQ, in case of 8 threads doing random I/O in parallel on null_blk, with the latter configured with 0 latency. We obtained the same or higher throughput boosts, up to +30%, with other processors (some figures are reported in the documentation). For our tests, we used the script [1], with which our results can be easily reproduced. NOTE. This commit still protects the invocation of blkg_*stats_* functions with the request_queue lock, because the group these functions are invoked on may otherwise disappear before or while these functions are executed. Fortunately, tests without even this lock show, by difference, that the serialization caused by this lock has a little impact (at most ~5% of throughput reduction). [1] https://github.com/Algodev-github/IOSpeed Tested-by: Lee Tibbert Tested-by: Oleksandr Natalenko Signed-off-by: Paolo Valente Signed-off-by: Luca Miccio Signed-off-by: Jens Axboe --- Documentation/block/bfq-iosched.txt | 6 +- block/bfq-iosched.c | 110 ++++++++++++++++++++++++++++++++---- block/bfq-wf2q.c | 1 - 3 files changed, 102 insertions(+), 15 deletions(-) (limited to 'Documentation') diff --git a/Documentation/block/bfq-iosched.txt b/Documentation/block/bfq-iosched.txt index 7a9361508157..7fad6c061470 100644 --- a/Documentation/block/bfq-iosched.txt +++ b/Documentation/block/bfq-iosched.txt @@ -26,9 +26,9 @@ the limits on slow or average CPUs, here are BFQ limits for three different CPUs, on, respectively, an average laptop, an old desktop, and a cheap embedded system, in case full hierarchical support is enabled (i.e., CONFIG_BFQ_GROUP_IOSCHED is set): -- Intel i7-4850HQ: 250 KIOPS -- AMD A8-3850: 170 KIOPS -- ARM CortexTM-A53 Octa-core: 45 KIOPS +- Intel i7-4850HQ: 310 KIOPS +- AMD A8-3850: 200 KIOPS +- ARM CortexTM-A53 Octa-core: 56 KIOPS BFQ works for multi-queue devices too. diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index 91703eba63f0..69e05f861daf 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -2228,7 +2228,6 @@ static void __bfq_set_in_service_queue(struct bfq_data *bfqd, struct bfq_queue *bfqq) { if (bfqq) { - bfqg_stats_update_avg_queue_size(bfqq_group(bfqq)); bfq_clear_bfqq_fifo_expire(bfqq); bfqd->budgets_assigned = (bfqd->budgets_assigned * 7 + 256) / 8; @@ -3469,7 +3468,6 @@ check_queue: */ bfq_clear_bfqq_wait_request(bfqq); hrtimer_try_to_cancel(&bfqd->idle_slice_timer); - bfqg_stats_update_idle_time(bfqq_group(bfqq)); } goto keep_queue; } @@ -3695,15 +3693,67 @@ static struct request *bfq_dispatch_request(struct blk_mq_hw_ctx *hctx) { struct bfq_data *bfqd = hctx->queue->elevator->elevator_data; struct request *rq; +#ifdef CONFIG_BFQ_GROUP_IOSCHED + struct bfq_queue *in_serv_queue, *bfqq; + bool waiting_rq, idle_timer_disabled; +#endif spin_lock_irq(&bfqd->lock); +#ifdef CONFIG_BFQ_GROUP_IOSCHED + in_serv_queue = bfqd->in_service_queue; + waiting_rq = in_serv_queue && bfq_bfqq_wait_request(in_serv_queue); + + rq = __bfq_dispatch_request(hctx); + + idle_timer_disabled = + waiting_rq && !bfq_bfqq_wait_request(in_serv_queue); + +#else rq = __bfq_dispatch_request(hctx); - if (rq && RQ_BFQQ(rq)) - bfqg_stats_update_io_remove(bfqq_group(RQ_BFQQ(rq)), - rq->cmd_flags); +#endif spin_unlock_irq(&bfqd->lock); +#ifdef CONFIG_BFQ_GROUP_IOSCHED + bfqq = rq ? RQ_BFQQ(rq) : NULL; + if (!idle_timer_disabled && !bfqq) + return rq; + + /* + * rq and bfqq are guaranteed to exist until this function + * ends, for the following reasons. First, rq can be + * dispatched to the device, and then can be completed and + * freed, only after this function ends. Second, rq cannot be + * merged (and thus freed because of a merge) any longer, + * because it has already started. Thus rq cannot be freed + * before this function ends, and, since rq has a reference to + * bfqq, the same guarantee holds for bfqq too. + * + * In addition, the following queue lock guarantees that + * bfqq_group(bfqq) exists as well. + */ + spin_lock_irq(hctx->queue->queue_lock); + if (idle_timer_disabled) + /* + * Since the idle timer has been disabled, + * in_serv_queue contained some request when + * __bfq_dispatch_request was invoked above, which + * implies that rq was picked exactly from + * in_serv_queue. Thus in_serv_queue == bfqq, and is + * therefore guaranteed to exist because of the above + * arguments. + */ + bfqg_stats_update_idle_time(bfqq_group(in_serv_queue)); + if (bfqq) { + struct bfq_group *bfqg = bfqq_group(bfqq); + + bfqg_stats_update_avg_queue_size(bfqg); + bfqg_stats_set_start_empty_time(bfqg); + bfqg_stats_update_io_remove(bfqg, rq->cmd_flags); + } + spin_unlock_irq(hctx->queue->queue_lock); +#endif + return rq; } @@ -4161,7 +4211,6 @@ static void bfq_rq_enqueued(struct bfq_data *bfqd, struct bfq_queue *bfqq, */ bfq_clear_bfqq_wait_request(bfqq); hrtimer_try_to_cancel(&bfqd->idle_slice_timer); - bfqg_stats_update_idle_time(bfqq_group(bfqq)); /* * The queue is not empty, because a new request just @@ -4176,10 +4225,12 @@ static void bfq_rq_enqueued(struct bfq_data *bfqd, struct bfq_queue *bfqq, } } -static void __bfq_insert_request(struct bfq_data *bfqd, struct request *rq) +/* returns true if it causes the idle timer to be disabled */ +static bool __bfq_insert_request(struct bfq_data *bfqd, struct request *rq) { struct bfq_queue *bfqq = RQ_BFQQ(rq), *new_bfqq = bfq_setup_cooperator(bfqd, bfqq, rq, true); + bool waiting, idle_timer_disabled = false; if (new_bfqq) { if (bic_to_bfqq(RQ_BIC(rq), 1) != bfqq) @@ -4213,12 +4264,16 @@ static void __bfq_insert_request(struct bfq_data *bfqd, struct request *rq) bfqq = new_bfqq; } + waiting = bfqq && bfq_bfqq_wait_request(bfqq); bfq_add_request(rq); + idle_timer_disabled = waiting && !bfq_bfqq_wait_request(bfqq); rq->fifo_time = ktime_get_ns() + bfqd->bfq_fifo_expire[rq_is_sync(rq)]; list_add_tail(&rq->queuelist, &bfqq->fifo); bfq_rq_enqueued(bfqd, bfqq, rq); + + return idle_timer_disabled; } static void bfq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, @@ -4226,7 +4281,11 @@ static void bfq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, { struct request_queue *q = hctx->queue; struct bfq_data *bfqd = q->elevator->elevator_data; +#ifdef CONFIG_BFQ_GROUP_IOSCHED struct bfq_queue *bfqq = RQ_BFQQ(rq); + bool idle_timer_disabled = false; + unsigned int cmd_flags; +#endif spin_lock_irq(&bfqd->lock); if (blk_mq_sched_try_insert_merge(q, rq)) { @@ -4245,13 +4304,17 @@ static void bfq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, else list_add_tail(&rq->queuelist, &bfqd->dispatch); } else { - __bfq_insert_request(bfqd, rq); +#ifdef CONFIG_BFQ_GROUP_IOSCHED + idle_timer_disabled = __bfq_insert_request(bfqd, rq); /* * Update bfqq, because, if a queue merge has occurred * in __bfq_insert_request, then rq has been * redirected into a new queue. */ bfqq = RQ_BFQQ(rq); +#else + __bfq_insert_request(bfqd, rq); +#endif if (rq_mergeable(rq)) { elv_rqhash_add(q, rq); @@ -4260,10 +4323,35 @@ static void bfq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, } } - if (bfqq) - bfqg_stats_update_io_add(bfqq_group(bfqq), bfqq, rq->cmd_flags); - +#ifdef CONFIG_BFQ_GROUP_IOSCHED + /* + * Cache cmd_flags before releasing scheduler lock, because rq + * may disappear afterwards (for example, because of a request + * merge). + */ + cmd_flags = rq->cmd_flags; +#endif spin_unlock_irq(&bfqd->lock); + +#ifdef CONFIG_BFQ_GROUP_IOSCHED + if (!bfqq) + return; + /* + * bfqq still exists, because it can disappear only after + * either it is merged with another queue, or the process it + * is associated with exits. But both actions must be taken by + * the same process currently executing this flow of + * instruction. + * + * In addition, the following queue lock guarantees that + * bfqq_group(bfqq) exists as well. + */ + spin_lock_irq(q->queue_lock); + bfqg_stats_update_io_add(bfqq_group(bfqq), bfqq, cmd_flags); + if (idle_timer_disabled) + bfqg_stats_update_idle_time(bfqq_group(bfqq)); + spin_unlock_irq(q->queue_lock); +#endif } static void bfq_insert_requests(struct blk_mq_hw_ctx *hctx, diff --git a/block/bfq-wf2q.c b/block/bfq-wf2q.c index 414ba686a847..e495d3f9b4b0 100644 --- a/block/bfq-wf2q.c +++ b/block/bfq-wf2q.c @@ -843,7 +843,6 @@ void bfq_bfqq_served(struct bfq_queue *bfqq, int served) st->vtime += bfq_delta(served, st->wsum); bfq_forget_idle(st); } - bfqg_stats_set_start_empty_time(bfqq_group(bfqq)); bfq_log_bfqq(bfqq->bfqd, bfqq, "bfqq_served %d secs", served); } -- cgit v1.2.3 From a33801e8b4735b8d473f963e5854172f9cde3e8b Mon Sep 17 00:00:00 2001 From: Luca Miccio Date: Mon, 13 Nov 2017 07:34:10 +0100 Subject: block, bfq: move debug blkio stats behind CONFIG_DEBUG_BLK_CGROUP BFQ currently creates, and updates, its own instance of the whole set of blkio statistics that cfq creates. Yet, from the comments of Tejun Heo in [1], it turned out that most of these statistics are meant/useful only for debugging. This commit makes BFQ create the latter, debugging statistics only if the option CONFIG_DEBUG_BLK_CGROUP is set. By doing so, this commit also enables BFQ to enjoy a high perfomance boost. The reason is that, if CONFIG_DEBUG_BLK_CGROUP is not set, then BFQ has to update far fewer statistics, and, in particular, not the heaviest to update. To give an idea of the benefits, if CONFIG_DEBUG_BLK_CGROUP is not set, then, on an Intel i7-4850HQ, and with 8 threads doing random I/O in parallel on null_blk (configured with 0 latency), the throughput of BFQ grows from 310 to 400 KIOPS (+30%). We have measured similar or even much higher boosts with other CPUs: e.g., +45% with an ARM CortexTM-A53 Octa-core. Our results have been obtained and can be reproduced very easily with the script in [1]. [1] https://www.spinics.net/lists/linux-block/msg18943.html Suggested-by: Tejun Heo Suggested-by: Ulf Hansson Tested-by: Lee Tibbert Tested-by: Oleksandr Natalenko Signed-off-by: Luca Miccio Signed-off-by: Paolo Valente Signed-off-by: Jens Axboe --- Documentation/block/bfq-iosched.txt | 38 +++++++-- block/bfq-cgroup.c | 148 ++++++++++++++++++++---------------- block/bfq-iosched.c | 14 ++-- block/bfq-iosched.h | 4 +- 4 files changed, 125 insertions(+), 79 deletions(-) (limited to 'Documentation') diff --git a/Documentation/block/bfq-iosched.txt b/Documentation/block/bfq-iosched.txt index 7fad6c061470..8d8d8f06cab2 100644 --- a/Documentation/block/bfq-iosched.txt +++ b/Documentation/block/bfq-iosched.txt @@ -20,12 +20,22 @@ for that device, by setting low_latency to 0. See Section 3 for details on how to configure BFQ for the desired tradeoff between latency and throughput, or on how to maximize throughput. -BFQ has a non-null overhead, which limits the maximum IOPS that the -CPU can process for a device scheduled with BFQ. To give an idea of -the limits on slow or average CPUs, here are BFQ limits for three -different CPUs, on, respectively, an average laptop, an old desktop, -and a cheap embedded system, in case full hierarchical support is -enabled (i.e., CONFIG_BFQ_GROUP_IOSCHED is set): +BFQ has a non-null overhead, which limits the maximum IOPS that a CPU +can process for a device scheduled with BFQ. To give an idea of the +limits on slow or average CPUs, here are, first, the limits of BFQ for +three different CPUs, on, respectively, an average laptop, an old +desktop, and a cheap embedded system, in case full hierarchical +support is enabled (i.e., CONFIG_BFQ_GROUP_IOSCHED is set), but +CONFIG_DEBUG_BLK_CGROUP is not set (Section 4-2): +- Intel i7-4850HQ: 400 KIOPS +- AMD A8-3850: 250 KIOPS +- ARM CortexTM-A53 Octa-core: 80 KIOPS + +If CONFIG_DEBUG_BLK_CGROUP is set (and of course full hierarchical +support is enabled), then the sustainable throughput with BFQ +decreases, because all blkio.bfq* statistics are created and updated +(Section 4-2). For BFQ, this leads to the following maximum +sustainable throughputs, on the same systems as above: - Intel i7-4850HQ: 310 KIOPS - AMD A8-3850: 200 KIOPS - ARM CortexTM-A53 Octa-core: 56 KIOPS @@ -505,6 +515,22 @@ BFQ-specific files is "blkio.bfq." or "io.bfq." For example, the group parameter to set the weight of a group with BFQ is blkio.bfq.weight or io.bfq.weight. +As for cgroups-v1 (blkio controller), the exact set of stat files +created, and kept up-to-date by bfq, depends on whether +CONFIG_DEBUG_BLK_CGROUP is set. If it is set, then bfq creates all +the stat files documented in +Documentation/cgroup-v1/blkio-controller.txt. If, instead, +CONFIG_DEBUG_BLK_CGROUP is not set, then bfq creates only the files +blkio.bfq.io_service_bytes +blkio.bfq.io_service_bytes_recursive +blkio.bfq.io_serviced +blkio.bfq.io_serviced_recursive + +The value of CONFIG_DEBUG_BLK_CGROUP greatly influences the maximum +throughput sustainable with bfq, because updating the blkio.bfq.* +stats is rather costly, especially for some of the stats enabled by +CONFIG_DEBUG_BLK_CGROUP. + Parameters to set ----------------- diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c index ceefb9a706d6..da1525ec4c87 100644 --- a/block/bfq-cgroup.c +++ b/block/bfq-cgroup.c @@ -24,7 +24,7 @@ #include "bfq-iosched.h" -#ifdef CONFIG_BFQ_GROUP_IOSCHED +#if defined(CONFIG_BFQ_GROUP_IOSCHED) && defined(CONFIG_DEBUG_BLK_CGROUP) /* bfqg stats flags */ enum bfqg_stats_flags { @@ -152,6 +152,57 @@ void bfqg_stats_update_avg_queue_size(struct bfq_group *bfqg) bfqg_stats_update_group_wait_time(stats); } +void bfqg_stats_update_io_add(struct bfq_group *bfqg, struct bfq_queue *bfqq, + unsigned int op) +{ + blkg_rwstat_add(&bfqg->stats.queued, op, 1); + bfqg_stats_end_empty_time(&bfqg->stats); + if (!(bfqq == ((struct bfq_data *)bfqg->bfqd)->in_service_queue)) + bfqg_stats_set_start_group_wait_time(bfqg, bfqq_group(bfqq)); +} + +void bfqg_stats_update_io_remove(struct bfq_group *bfqg, unsigned int op) +{ + blkg_rwstat_add(&bfqg->stats.queued, op, -1); +} + +void bfqg_stats_update_io_merged(struct bfq_group *bfqg, unsigned int op) +{ + blkg_rwstat_add(&bfqg->stats.merged, op, 1); +} + +void bfqg_stats_update_completion(struct bfq_group *bfqg, uint64_t start_time, + uint64_t io_start_time, unsigned int op) +{ + struct bfqg_stats *stats = &bfqg->stats; + unsigned long long now = sched_clock(); + + if (time_after64(now, io_start_time)) + blkg_rwstat_add(&stats->service_time, op, + now - io_start_time); + if (time_after64(io_start_time, start_time)) + blkg_rwstat_add(&stats->wait_time, op, + io_start_time - start_time); +} + +#else /* CONFIG_BFQ_GROUP_IOSCHED && CONFIG_DEBUG_BLK_CGROUP */ + +void bfqg_stats_update_io_add(struct bfq_group *bfqg, struct bfq_queue *bfqq, + unsigned int op) { } +void bfqg_stats_update_io_remove(struct bfq_group *bfqg, unsigned int op) { } +void bfqg_stats_update_io_merged(struct bfq_group *bfqg, unsigned int op) { } +void bfqg_stats_update_completion(struct bfq_group *bfqg, uint64_t start_time, + uint64_t io_start_time, unsigned int op) { } +void bfqg_stats_update_dequeue(struct bfq_group *bfqg) { } +void bfqg_stats_set_start_empty_time(struct bfq_group *bfqg) { } +void bfqg_stats_update_idle_time(struct bfq_group *bfqg) { } +void bfqg_stats_set_start_idle_time(struct bfq_group *bfqg) { } +void bfqg_stats_update_avg_queue_size(struct bfq_group *bfqg) { } + +#endif /* CONFIG_BFQ_GROUP_IOSCHED && CONFIG_DEBUG_BLK_CGROUP */ + +#ifdef CONFIG_BFQ_GROUP_IOSCHED + /* * blk-cgroup policy-related handlers * The following functions help in converting between blk-cgroup @@ -229,42 +280,10 @@ void bfqg_and_blkg_put(struct bfq_group *bfqg) blkg_put(bfqg_to_blkg(bfqg)); } -void bfqg_stats_update_io_add(struct bfq_group *bfqg, struct bfq_queue *bfqq, - unsigned int op) -{ - blkg_rwstat_add(&bfqg->stats.queued, op, 1); - bfqg_stats_end_empty_time(&bfqg->stats); - if (!(bfqq == ((struct bfq_data *)bfqg->bfqd)->in_service_queue)) - bfqg_stats_set_start_group_wait_time(bfqg, bfqq_group(bfqq)); -} - -void bfqg_stats_update_io_remove(struct bfq_group *bfqg, unsigned int op) -{ - blkg_rwstat_add(&bfqg->stats.queued, op, -1); -} - -void bfqg_stats_update_io_merged(struct bfq_group *bfqg, unsigned int op) -{ - blkg_rwstat_add(&bfqg->stats.merged, op, 1); -} - -void bfqg_stats_update_completion(struct bfq_group *bfqg, uint64_t start_time, - uint64_t io_start_time, unsigned int op) -{ - struct bfqg_stats *stats = &bfqg->stats; - unsigned long long now = sched_clock(); - - if (time_after64(now, io_start_time)) - blkg_rwstat_add(&stats->service_time, op, - now - io_start_time); - if (time_after64(io_start_time, start_time)) - blkg_rwstat_add(&stats->wait_time, op, - io_start_time - start_time); -} - /* @stats = 0 */ static void bfqg_stats_reset(struct bfqg_stats *stats) { +#ifdef CONFIG_DEBUG_BLK_CGROUP /* queued stats shouldn't be cleared */ blkg_rwstat_reset(&stats->merged); blkg_rwstat_reset(&stats->service_time); @@ -276,6 +295,7 @@ static void bfqg_stats_reset(struct bfqg_stats *stats) blkg_stat_reset(&stats->group_wait_time); blkg_stat_reset(&stats->idle_time); blkg_stat_reset(&stats->empty_time); +#endif } /* @to += @from */ @@ -284,6 +304,7 @@ static void bfqg_stats_add_aux(struct bfqg_stats *to, struct bfqg_stats *from) if (!to || !from) return; +#ifdef CONFIG_DEBUG_BLK_CGROUP /* queued stats shouldn't be cleared */ blkg_rwstat_add_aux(&to->merged, &from->merged); blkg_rwstat_add_aux(&to->service_time, &from->service_time); @@ -296,6 +317,7 @@ static void bfqg_stats_add_aux(struct bfqg_stats *to, struct bfqg_stats *from) blkg_stat_add_aux(&to->group_wait_time, &from->group_wait_time); blkg_stat_add_aux(&to->idle_time, &from->idle_time); blkg_stat_add_aux(&to->empty_time, &from->empty_time); +#endif } /* @@ -342,6 +364,7 @@ void bfq_init_entity(struct bfq_entity *entity, struct bfq_group *bfqg) static void bfqg_stats_exit(struct bfqg_stats *stats) { +#ifdef CONFIG_DEBUG_BLK_CGROUP blkg_rwstat_exit(&stats->merged); blkg_rwstat_exit(&stats->service_time); blkg_rwstat_exit(&stats->wait_time); @@ -353,10 +376,12 @@ static void bfqg_stats_exit(struct bfqg_stats *stats) blkg_stat_exit(&stats->group_wait_time); blkg_stat_exit(&stats->idle_time); blkg_stat_exit(&stats->empty_time); +#endif } static int bfqg_stats_init(struct bfqg_stats *stats, gfp_t gfp) { +#ifdef CONFIG_DEBUG_BLK_CGROUP if (blkg_rwstat_init(&stats->merged, gfp) || blkg_rwstat_init(&stats->service_time, gfp) || blkg_rwstat_init(&stats->wait_time, gfp) || @@ -371,6 +396,7 @@ static int bfqg_stats_init(struct bfqg_stats *stats, gfp_t gfp) bfqg_stats_exit(stats); return -ENOMEM; } +#endif return 0; } @@ -887,6 +913,7 @@ static ssize_t bfq_io_set_weight(struct kernfs_open_file *of, return bfq_io_set_weight_legacy(of_css(of), NULL, weight); } +#ifdef CONFIG_DEBUG_BLK_CGROUP static int bfqg_print_stat(struct seq_file *sf, void *v) { blkcg_print_blkgs(sf, css_to_blkcg(seq_css(sf)), blkg_prfill_stat, @@ -991,6 +1018,7 @@ static int bfqg_print_avg_queue_size(struct seq_file *sf, void *v) 0, false); return 0; } +#endif /* CONFIG_DEBUG_BLK_CGROUP */ struct bfq_group *bfq_create_group_hierarchy(struct bfq_data *bfqd, int node) { @@ -1028,15 +1056,6 @@ struct cftype bfq_blkcg_legacy_files[] = { }, /* statistics, covers only the tasks in the bfqg */ - { - .name = "bfq.time", - .private = offsetof(struct bfq_group, stats.time), - .seq_show = bfqg_print_stat, - }, - { - .name = "bfq.sectors", - .seq_show = bfqg_print_stat_sectors, - }, { .name = "bfq.io_service_bytes", .private = (unsigned long)&blkcg_policy_bfq, @@ -1047,6 +1066,16 @@ struct cftype bfq_blkcg_legacy_files[] = { .private = (unsigned long)&blkcg_policy_bfq, .seq_show = blkg_print_stat_ios, }, +#ifdef CONFIG_DEBUG_BLK_CGROUP + { + .name = "bfq.time", + .private = offsetof(struct bfq_group, stats.time), + .seq_show = bfqg_print_stat, + }, + { + .name = "bfq.sectors", + .seq_show = bfqg_print_stat_sectors, + }, { .name = "bfq.io_service_time", .private = offsetof(struct bfq_group, stats.service_time), @@ -1067,17 +1096,9 @@ struct cftype bfq_blkcg_legacy_files[] = { .private = offsetof(struct bfq_group, stats.queued), .seq_show = bfqg_print_rwstat, }, +#endif /* CONFIG_DEBUG_BLK_CGROUP */ /* the same statictics which cover the bfqg and its descendants */ - { - .name = "bfq.time_recursive", - .private = offsetof(struct bfq_group, stats.time), - .seq_show = bfqg_print_stat_recursive, - }, - { - .name = "bfq.sectors_recursive", - .seq_show = bfqg_print_stat_sectors_recursive, - }, { .name = "bfq.io_service_bytes_recursive", .private = (unsigned long)&blkcg_policy_bfq, @@ -1088,6 +1109,16 @@ struct cftype bfq_blkcg_legacy_files[] = { .private = (unsigned long)&blkcg_policy_bfq, .seq_show = blkg_print_stat_ios_recursive, }, +#ifdef CONFIG_DEBUG_BLK_CGROUP + { + .name = "bfq.time_recursive", + .private = offsetof(struct bfq_group, stats.time), + .seq_show = bfqg_print_stat_recursive, + }, + { + .name = "bfq.sectors_recursive", + .seq_show = bfqg_print_stat_sectors_recursive, + }, { .name = "bfq.io_service_time_recursive", .private = offsetof(struct bfq_group, stats.service_time), @@ -1132,6 +1163,7 @@ struct cftype bfq_blkcg_legacy_files[] = { .private = offsetof(struct bfq_group, stats.dequeue), .seq_show = bfqg_print_stat, }, +#endif /* CONFIG_DEBUG_BLK_CGROUP */ { } /* terminate */ }; @@ -1147,18 +1179,6 @@ struct cftype bfq_blkg_files[] = { #else /* CONFIG_BFQ_GROUP_IOSCHED */ -void bfqg_stats_update_io_add(struct bfq_group *bfqg, struct bfq_queue *bfqq, - unsigned int op) { } -void bfqg_stats_update_io_remove(struct bfq_group *bfqg, unsigned int op) { } -void bfqg_stats_update_io_merged(struct bfq_group *bfqg, unsigned int op) { } -void bfqg_stats_update_completion(struct bfq_group *bfqg, uint64_t start_time, - uint64_t io_start_time, unsigned int op) { } -void bfqg_stats_update_dequeue(struct bfq_group *bfqg) { } -void bfqg_stats_set_start_empty_time(struct bfq_group *bfqg) { } -void bfqg_stats_update_idle_time(struct bfq_group *bfqg) { } -void bfqg_stats_set_start_idle_time(struct bfq_group *bfqg) { } -void bfqg_stats_update_avg_queue_size(struct bfq_group *bfqg) { } - void bfq_bfqq_move(struct bfq_data *bfqd, struct bfq_queue *bfqq, struct bfq_group *bfqg) {} diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index 69e05f861daf..bcb6d21baf12 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -3693,14 +3693,14 @@ static struct request *bfq_dispatch_request(struct blk_mq_hw_ctx *hctx) { struct bfq_data *bfqd = hctx->queue->elevator->elevator_data; struct request *rq; -#ifdef CONFIG_BFQ_GROUP_IOSCHED +#if defined(CONFIG_BFQ_GROUP_IOSCHED) && defined(CONFIG_DEBUG_BLK_CGROUP) struct bfq_queue *in_serv_queue, *bfqq; bool waiting_rq, idle_timer_disabled; #endif spin_lock_irq(&bfqd->lock); -#ifdef CONFIG_BFQ_GROUP_IOSCHED +#if defined(CONFIG_BFQ_GROUP_IOSCHED) && defined(CONFIG_DEBUG_BLK_CGROUP) in_serv_queue = bfqd->in_service_queue; waiting_rq = in_serv_queue && bfq_bfqq_wait_request(in_serv_queue); @@ -3714,7 +3714,7 @@ static struct request *bfq_dispatch_request(struct blk_mq_hw_ctx *hctx) #endif spin_unlock_irq(&bfqd->lock); -#ifdef CONFIG_BFQ_GROUP_IOSCHED +#if defined(CONFIG_BFQ_GROUP_IOSCHED) && defined(CONFIG_DEBUG_BLK_CGROUP) bfqq = rq ? RQ_BFQQ(rq) : NULL; if (!idle_timer_disabled && !bfqq) return rq; @@ -4281,7 +4281,7 @@ static void bfq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, { struct request_queue *q = hctx->queue; struct bfq_data *bfqd = q->elevator->elevator_data; -#ifdef CONFIG_BFQ_GROUP_IOSCHED +#if defined(CONFIG_BFQ_GROUP_IOSCHED) && defined(CONFIG_DEBUG_BLK_CGROUP) struct bfq_queue *bfqq = RQ_BFQQ(rq); bool idle_timer_disabled = false; unsigned int cmd_flags; @@ -4304,7 +4304,7 @@ static void bfq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, else list_add_tail(&rq->queuelist, &bfqd->dispatch); } else { -#ifdef CONFIG_BFQ_GROUP_IOSCHED +#if defined(CONFIG_BFQ_GROUP_IOSCHED) && defined(CONFIG_DEBUG_BLK_CGROUP) idle_timer_disabled = __bfq_insert_request(bfqd, rq); /* * Update bfqq, because, if a queue merge has occurred @@ -4323,7 +4323,7 @@ static void bfq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, } } -#ifdef CONFIG_BFQ_GROUP_IOSCHED +#if defined(CONFIG_BFQ_GROUP_IOSCHED) && defined(CONFIG_DEBUG_BLK_CGROUP) /* * Cache cmd_flags before releasing scheduler lock, because rq * may disappear afterwards (for example, because of a request @@ -4333,7 +4333,7 @@ static void bfq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq, #endif spin_unlock_irq(&bfqd->lock); -#ifdef CONFIG_BFQ_GROUP_IOSCHED +#if defined(CONFIG_BFQ_GROUP_IOSCHED) && defined(CONFIG_DEBUG_BLK_CGROUP) if (!bfqq) return; /* diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h index ac0809c72c98..91c4390903a1 100644 --- a/block/bfq-iosched.h +++ b/block/bfq-iosched.h @@ -689,7 +689,7 @@ enum bfqq_expiration { }; struct bfqg_stats { -#ifdef CONFIG_BFQ_GROUP_IOSCHED +#if defined(CONFIG_BFQ_GROUP_IOSCHED) && defined(CONFIG_DEBUG_BLK_CGROUP) /* number of ios merged */ struct blkg_rwstat merged; /* total time spent on device in ns, may not be accurate w/ queueing */ @@ -717,7 +717,7 @@ struct bfqg_stats { uint64_t start_idle_time; uint64_t start_empty_time; uint16_t flags; -#endif /* CONFIG_BFQ_GROUP_IOSCHED */ +#endif /* CONFIG_BFQ_GROUP_IOSCHED && CONFIG_DEBUG_BLK_CGROUP */ }; #ifdef CONFIG_BFQ_GROUP_IOSCHED -- cgit v1.2.3 From ccb4e74aebb6fbd56fc6783f4d5c6ded48bc2f5d Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Wed, 4 Oct 2017 19:10:38 +0900 Subject: dt-bindings: pwm: Add R-Car D3 device tree bindings Add device tree bindings for the PWM controller found on R-Car D3 SoCs. Signed-off-by: Yoshihiro Shimoda Reviewed-by: Geert Uytterhoeven Acked-by: Rob Herring Signed-off-by: Thierry Reding --- Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt b/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt index 7e94b802395d..74c118015980 100644 --- a/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt +++ b/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt @@ -9,6 +9,7 @@ Required Properties: - "renesas,pwm-r8a7794": for R-Car E2 - "renesas,pwm-r8a7795": for R-Car H3 - "renesas,pwm-r8a7796": for R-Car M3-W + - "renesas,pwm-r8a77995": for R-Car D3 - reg: base address and length of the registers block for the PWM. - #pwm-cells: should be 2. See pwm.txt in this directory for a description of the cells format. -- cgit v1.2.3 From 8f6596f4c94a155b93a809989314e5e8c01d0618 Mon Sep 17 00:00:00 2001 From: Baolin Wang Date: Thu, 9 Nov 2017 11:34:16 +0800 Subject: dt-bindings: rtc: Add Spreadtrum SC27xx RTC documentation This patch adds the binding documentation for Spreadtrum SC27xx series RTC device. Signed-off-by: Baolin Wang Acked-by: Rob Herring Signed-off-by: Alexandre Belloni --- .../devicetree/bindings/rtc/sprd,sc27xx-rtc.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/sprd,sc27xx-rtc.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/rtc/sprd,sc27xx-rtc.txt b/Documentation/devicetree/bindings/rtc/sprd,sc27xx-rtc.txt new file mode 100644 index 000000000000..7c170da0d4b7 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/sprd,sc27xx-rtc.txt @@ -0,0 +1,27 @@ +Spreadtrum SC27xx Real Time Clock + +Required properties: +- compatible: should be "sprd,sc2731-rtc". +- reg: address offset of rtc register. +- interrupt-parent: phandle for the interrupt controller. +- interrupts: rtc alarm interrupt. + +Example: + + sc2731_pmic: pmic@0 { + compatible = "sprd,sc2731"; + reg = <0>; + spi-max-frequency = <26000000>; + interrupts = ; + interrupt-controller; + #interrupt-cells = <2>; + #address-cells = <1>; + #size-cells = <0>; + + rtc@280 { + compatible = "sprd,sc2731-rtc"; + reg = <0x280>; + interrupt-parent = <&sc2731_pmic>; + interrupts = <2 IRQ_TYPE_LEVEL_HIGH>; + }; + }; -- cgit v1.2.3 From be543dd626c0a23829e9cc1a28e1e3af4cd9ced6 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 15 Nov 2017 16:38:44 +0000 Subject: KEYS: fix in-kernel documentation for keyctl_read() When keyctl_read() is passed a buffer that is too small, the behavior is inconsistent. Some key types will fill as much of the buffer as possible, while others won't copy anything. Moreover, the in-kernel documentation contradicted the man page on this point. Update the in-kernel documentation to say that this point is unspecified. Signed-off-by: Eric Biggers Signed-off-by: David Howells --- Documentation/security/keys/core.rst | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/security/keys/core.rst b/Documentation/security/keys/core.rst index 1266eeae45f6..9ce7256c6edb 100644 --- a/Documentation/security/keys/core.rst +++ b/Documentation/security/keys/core.rst @@ -628,12 +628,12 @@ The keyctl syscall functions are: defined key type will return its data as is. If a key type does not implement this function, error EOPNOTSUPP will result. - As much of the data as can be fitted into the buffer will be copied to - userspace if the buffer pointer is not NULL. - - On a successful return, the function will always return the amount of data - available rather than the amount copied. + If the specified buffer is too small, then the size of the buffer required + will be returned. Note that in this case, the contents of the buffer may + have been overwritten in some undefined way. + Otherwise, on success, the function will return the amount of data copied + into the buffer. * Instantiate a partially constructed key:: -- cgit v1.2.3 From e9e716ff2d4d8618aefac55691a4c4483abecc37 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Mon, 13 Nov 2017 17:50:42 +0100 Subject: docs: dev-tools: coccinelle: delete out of date wiki reference The wiki is no longer available. Signed-off-by: Julia Lawall Signed-off-by: Masahiro Yamada --- Documentation/dev-tools/coccinelle.rst | 3 --- 1 file changed, 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/dev-tools/coccinelle.rst b/Documentation/dev-tools/coccinelle.rst index 4a64b4c69d3f..38f3b32203e9 100644 --- a/Documentation/dev-tools/coccinelle.rst +++ b/Documentation/dev-tools/coccinelle.rst @@ -33,9 +33,6 @@ of many distributions, e.g. : You can get the latest version released from the Coccinelle homepage at http://coccinelle.lip6.fr/ -Information and tips about Coccinelle are also provided on the wiki -pages at http://cocci.ekstranet.diku.dk/wiki/doku.php - Once you have it, run the following command:: ./configure -- cgit v1.2.3 From 0f6d24f878568fac579a1962d0bf7cb9f01e0ceb Mon Sep 17 00:00:00 2001 From: Yafang Shao Date: Wed, 15 Nov 2017 17:33:45 -0800 Subject: mm/page-writeback.c: print a warning if the vm dirtiness settings are illogical The vm direct limit setting must be set greater than vm background limit setting. Otherwise print a warning to help the operator to figure out that the vm dirtiness settings is in illogical state. Link: http://lkml.kernel.org/r/1506592464-30962-1-git-send-email-laoar.shao@gmail.com Signed-off-by: Yafang Shao Cc: Jan Kara Cc: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/sysctl/vm.txt | 7 +++++++ mm/page-writeback.c | 5 ++++- 2 files changed, 11 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 9baf66a9ef4e..30fd16b14196 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -157,6 +157,10 @@ Note: the minimum value allowed for dirty_bytes is two pages (in bytes); any value lower than this limit will be ignored and the old configuration will be retained. +Note: the value of dirty_bytes also must be set greater than +dirty_background_bytes or the amount of memory corresponding to +dirty_background_ratio. + ============================================================== dirty_expire_centisecs @@ -176,6 +180,9 @@ generating disk writes will itself start writing out dirty data. The total available memory is not equal to total system memory. +Note: dirty_ratio must be set greater than dirty_background_ratio or +ratio corresponding to dirty_background_bytes. + ============================================================== dirty_writeback_centisecs diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 76a43c17761b..768fe4e37e6a 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -433,8 +433,11 @@ static void domain_dirty_limits(struct dirty_throttle_control *dtc) else bg_thresh = (bg_ratio * available_memory) / PAGE_SIZE; - if (bg_thresh >= thresh) + if (unlikely(bg_thresh >= thresh)) { + pr_warn("vm direct limit must be set greater than background limit.\n"); bg_thresh = thresh / 2; + } + tsk = current; if (tsk->flags & PF_LESS_THROTTLE || rt_task(tsk)) { bg_thresh += bg_thresh / 4 + global_wb_domain.dirty_limit / 32; -- cgit v1.2.3 From 0f10851ea475e08896ee5d9a2036d1bb46a8f3a4 Mon Sep 17 00:00:00 2001 From: Jérôme Glisse Date: Wed, 15 Nov 2017 17:34:07 -0800 Subject: mm/mmu_notifier: avoid double notification when it is useless MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch only affects users of mmu_notifier->invalidate_range callback which are device drivers related to ATS/PASID, CAPI, IOMMUv2, SVM ... and it is an optimization for those users. Everyone else is unaffected by it. When clearing a pte/pmd we are given a choice to notify the event under the page table lock (notify version of *_clear_flush helpers do call the mmu_notifier_invalidate_range). But that notification is not necessary in all cases. This patch removes almost all cases where it is useless to have a call to mmu_notifier_invalidate_range before mmu_notifier_invalidate_range_end. It also adds documentation in all those cases explaining why. Below is a more in depth analysis of why this is fine to do this: For secondary TLB (non CPU TLB) like IOMMU TLB or device TLB (when device use thing like ATS/PASID to get the IOMMU to walk the CPU page table to access a process virtual address space). There is only 2 cases when you need to notify those secondary TLB while holding page table lock when clearing a pte/pmd: A) page backing address is free before mmu_notifier_invalidate_range_end B) a page table entry is updated to point to a new page (COW, write fault on zero page, __replace_page(), ...) Case A is obvious you do not want to take the risk for the device to write to a page that might now be used by something completely different. Case B is more subtle. For correctness it requires the following sequence to happen: - take page table lock - clear page table entry and notify (pmd/pte_huge_clear_flush_notify()) - set page table entry to point to new page If clearing the page table entry is not followed by a notify before setting the new pte/pmd value then you can break memory model like C11 or C++11 for the device. Consider the following scenario (device use a feature similar to ATS/ PASID): Two address addrA and addrB such that |addrA - addrB| >= PAGE_SIZE we assume they are write protected for COW (other case of B apply too). [Time N] ----------------------------------------------------------------- CPU-thread-0 {try to write to addrA} CPU-thread-1 {try to write to addrB} CPU-thread-2 {} CPU-thread-3 {} DEV-thread-0 {read addrA and populate device TLB} DEV-thread-2 {read addrB and populate device TLB} [Time N+1] --------------------------------------------------------------- CPU-thread-0 {COW_step0: {mmu_notifier_invalidate_range_start(addrA)}} CPU-thread-1 {COW_step0: {mmu_notifier_invalidate_range_start(addrB)}} CPU-thread-2 {} CPU-thread-3 {} DEV-thread-0 {} DEV-thread-2 {} [Time N+2] --------------------------------------------------------------- CPU-thread-0 {COW_step1: {update page table point to new page for addrA}} CPU-thread-1 {COW_step1: {update page table point to new page for addrB}} CPU-thread-2 {} CPU-thread-3 {} DEV-thread-0 {} DEV-thread-2 {} [Time N+3] --------------------------------------------------------------- CPU-thread-0 {preempted} CPU-thread-1 {preempted} CPU-thread-2 {write to addrA which is a write to new page} CPU-thread-3 {} DEV-thread-0 {} DEV-thread-2 {} [Time N+3] --------------------------------------------------------------- CPU-thread-0 {preempted} CPU-thread-1 {preempted} CPU-thread-2 {} CPU-thread-3 {write to addrB which is a write to new page} DEV-thread-0 {} DEV-thread-2 {} [Time N+4] --------------------------------------------------------------- CPU-thread-0 {preempted} CPU-thread-1 {COW_step3: {mmu_notifier_invalidate_range_end(addrB)}} CPU-thread-2 {} CPU-thread-3 {} DEV-thread-0 {} DEV-thread-2 {} [Time N+5] --------------------------------------------------------------- CPU-thread-0 {preempted} CPU-thread-1 {} CPU-thread-2 {} CPU-thread-3 {} DEV-thread-0 {read addrA from old page} DEV-thread-2 {read addrB from new page} So here because at time N+2 the clear page table entry was not pair with a notification to invalidate the secondary TLB, the device see the new value for addrB before seing the new value for addrA. This break total memory ordering for the device. When changing a pte to write protect or to point to a new write protected page with same content (KSM) it is ok to delay invalidate_range callback to mmu_notifier_invalidate_range_end() outside the page table lock. This is true even if the thread doing page table update is preempted right after releasing page table lock before calling mmu_notifier_invalidate_range_end Thanks to Andrea for thinking of a problematic scenario for COW. [jglisse@redhat.com: v2] Link: http://lkml.kernel.org/r/20171017031003.7481-2-jglisse@redhat.com Link: http://lkml.kernel.org/r/20170901173011.10745-1-jglisse@redhat.com Signed-off-by: Jérôme Glisse Cc: Andrea Arcangeli Cc: Nadav Amit Cc: Joerg Roedel Cc: Suravee Suthikulpanit Cc: David Woodhouse Cc: Alistair Popple Cc: Michael Ellerman Cc: Benjamin Herrenschmidt Cc: Stephen Rothwell Cc: Andrew Donnellan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/vm/mmu_notifier.txt | 93 +++++++++++++++++++++++++++++++++++++++ fs/dax.c | 9 +++- include/linux/mmu_notifier.h | 3 +- mm/huge_memory.c | 20 +++++++-- mm/hugetlb.c | 16 +++++-- mm/ksm.c | 15 ++++++- mm/rmap.c | 59 ++++++++++++++++++++++--- 7 files changed, 198 insertions(+), 17 deletions(-) create mode 100644 Documentation/vm/mmu_notifier.txt (limited to 'Documentation') diff --git a/Documentation/vm/mmu_notifier.txt b/Documentation/vm/mmu_notifier.txt new file mode 100644 index 000000000000..23b462566bb7 --- /dev/null +++ b/Documentation/vm/mmu_notifier.txt @@ -0,0 +1,93 @@ +When do you need to notify inside page table lock ? + +When clearing a pte/pmd we are given a choice to notify the event through +(notify version of *_clear_flush call mmu_notifier_invalidate_range) under +the page table lock. But that notification is not necessary in all cases. + +For secondary TLB (non CPU TLB) like IOMMU TLB or device TLB (when device use +thing like ATS/PASID to get the IOMMU to walk the CPU page table to access a +process virtual address space). There is only 2 cases when you need to notify +those secondary TLB while holding page table lock when clearing a pte/pmd: + + A) page backing address is free before mmu_notifier_invalidate_range_end() + B) a page table entry is updated to point to a new page (COW, write fault + on zero page, __replace_page(), ...) + +Case A is obvious you do not want to take the risk for the device to write to +a page that might now be used by some completely different task. + +Case B is more subtle. For correctness it requires the following sequence to +happen: + - take page table lock + - clear page table entry and notify ([pmd/pte]p_huge_clear_flush_notify()) + - set page table entry to point to new page + +If clearing the page table entry is not followed by a notify before setting +the new pte/pmd value then you can break memory model like C11 or C++11 for +the device. + +Consider the following scenario (device use a feature similar to ATS/PASID): + +Two address addrA and addrB such that |addrA - addrB| >= PAGE_SIZE we assume +they are write protected for COW (other case of B apply too). + +[Time N] -------------------------------------------------------------------- +CPU-thread-0 {try to write to addrA} +CPU-thread-1 {try to write to addrB} +CPU-thread-2 {} +CPU-thread-3 {} +DEV-thread-0 {read addrA and populate device TLB} +DEV-thread-2 {read addrB and populate device TLB} +[Time N+1] ------------------------------------------------------------------ +CPU-thread-0 {COW_step0: {mmu_notifier_invalidate_range_start(addrA)}} +CPU-thread-1 {COW_step0: {mmu_notifier_invalidate_range_start(addrB)}} +CPU-thread-2 {} +CPU-thread-3 {} +DEV-thread-0 {} +DEV-thread-2 {} +[Time N+2] ------------------------------------------------------------------ +CPU-thread-0 {COW_step1: {update page table to point to new page for addrA}} +CPU-thread-1 {COW_step1: {update page table to point to new page for addrB}} +CPU-thread-2 {} +CPU-thread-3 {} +DEV-thread-0 {} +DEV-thread-2 {} +[Time N+3] ------------------------------------------------------------------ +CPU-thread-0 {preempted} +CPU-thread-1 {preempted} +CPU-thread-2 {write to addrA which is a write to new page} +CPU-thread-3 {} +DEV-thread-0 {} +DEV-thread-2 {} +[Time N+3] ------------------------------------------------------------------ +CPU-thread-0 {preempted} +CPU-thread-1 {preempted} +CPU-thread-2 {} +CPU-thread-3 {write to addrB which is a write to new page} +DEV-thread-0 {} +DEV-thread-2 {} +[Time N+4] ------------------------------------------------------------------ +CPU-thread-0 {preempted} +CPU-thread-1 {COW_step3: {mmu_notifier_invalidate_range_end(addrB)}} +CPU-thread-2 {} +CPU-thread-3 {} +DEV-thread-0 {} +DEV-thread-2 {} +[Time N+5] ------------------------------------------------------------------ +CPU-thread-0 {preempted} +CPU-thread-1 {} +CPU-thread-2 {} +CPU-thread-3 {} +DEV-thread-0 {read addrA from old page} +DEV-thread-2 {read addrB from new page} + +So here because at time N+2 the clear page table entry was not pair with a +notification to invalidate the secondary TLB, the device see the new value for +addrB before seing the new value for addrA. This break total memory ordering +for the device. + +When changing a pte to write protect or to point to a new write protected page +with same content (KSM) it is fine to delay the mmu_notifier_invalidate_range +call to mmu_notifier_invalidate_range_end() outside the page table lock. This +is true even if the thread doing the page table update is preempted right after +releasing page table lock but before call mmu_notifier_invalidate_range_end(). diff --git a/fs/dax.c b/fs/dax.c index f3a44a7c14b3..9ec797424e4f 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -614,6 +614,13 @@ static void dax_mapping_entry_mkclean(struct address_space *mapping, if (follow_pte_pmd(vma->vm_mm, address, &start, &end, &ptep, &pmdp, &ptl)) continue; + /* + * No need to call mmu_notifier_invalidate_range() as we are + * downgrading page table protection not changing it to point + * to a new page. + * + * See Documentation/vm/mmu_notifier.txt + */ if (pmdp) { #ifdef CONFIG_FS_DAX_PMD pmd_t pmd; @@ -628,7 +635,6 @@ static void dax_mapping_entry_mkclean(struct address_space *mapping, pmd = pmd_wrprotect(pmd); pmd = pmd_mkclean(pmd); set_pmd_at(vma->vm_mm, address, pmdp, pmd); - mmu_notifier_invalidate_range(vma->vm_mm, start, end); unlock_pmd: spin_unlock(ptl); #endif @@ -643,7 +649,6 @@ unlock_pmd: pte = pte_wrprotect(pte); pte = pte_mkclean(pte); set_pte_at(vma->vm_mm, address, ptep, pte); - mmu_notifier_invalidate_range(vma->vm_mm, start, end); unlock_pte: pte_unmap_unlock(ptep, ptl); } diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index 2cf1c3c807f6..130831718e95 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -156,7 +156,8 @@ struct mmu_notifier_ops { * shared page-tables, it not necessary to implement the * invalidate_range_start()/end() notifiers, as * invalidate_range() alread catches the points in time when an - * external TLB range needs to be flushed. + * external TLB range needs to be flushed. For more in depth + * discussion on this see Documentation/vm/mmu_notifier.txt * * The invalidate_range() function is called under the ptl * spin-lock and not allowed to sleep. diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 003f7bcd0952..07ae73f4ef91 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -1189,8 +1189,15 @@ static int do_huge_pmd_wp_page_fallback(struct vm_fault *vmf, pmd_t orig_pmd, goto out_free_pages; VM_BUG_ON_PAGE(!PageHead(page), page); + /* + * Leave pmd empty until pte is filled note we must notify here as + * concurrent CPU thread might write to new page before the call to + * mmu_notifier_invalidate_range_end() happens which can lead to a + * device seeing memory write in different order than CPU. + * + * See Documentation/vm/mmu_notifier.txt + */ pmdp_huge_clear_flush_notify(vma, haddr, vmf->pmd); - /* leave pmd empty until pte is filled */ pgtable = pgtable_trans_huge_withdraw(vma->vm_mm, vmf->pmd); pmd_populate(vma->vm_mm, &_pmd, pgtable); @@ -2029,8 +2036,15 @@ static void __split_huge_zero_page_pmd(struct vm_area_struct *vma, pmd_t _pmd; int i; - /* leave pmd empty until pte is filled */ - pmdp_huge_clear_flush_notify(vma, haddr, pmd); + /* + * Leave pmd empty until pte is filled note that it is fine to delay + * notification until mmu_notifier_invalidate_range_end() as we are + * replacing a zero pmd write protected page with a zero pte write + * protected page. + * + * See Documentation/vm/mmu_notifier.txt + */ + pmdp_huge_clear_flush(vma, haddr, pmd); pgtable = pgtable_trans_huge_withdraw(mm, pmd); pmd_populate(mm, &_pmd, pgtable); diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 2d2ff5e8bf2b..681b300185c0 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3256,9 +3256,14 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src, set_huge_swap_pte_at(dst, addr, dst_pte, entry, sz); } else { if (cow) { + /* + * No need to notify as we are downgrading page + * table protection not changing it to point + * to a new page. + * + * See Documentation/vm/mmu_notifier.txt + */ huge_ptep_set_wrprotect(src, addr, src_pte); - mmu_notifier_invalidate_range(src, mmun_start, - mmun_end); } entry = huge_ptep_get(src_pte); ptepage = pte_page(entry); @@ -4318,7 +4323,12 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma, * and that page table be reused and filled with junk. */ flush_hugetlb_tlb_range(vma, start, end); - mmu_notifier_invalidate_range(mm, start, end); + /* + * No need to call mmu_notifier_invalidate_range() we are downgrading + * page table protection not changing it to point to a new page. + * + * See Documentation/vm/mmu_notifier.txt + */ i_mmap_unlock_write(vma->vm_file->f_mapping); mmu_notifier_invalidate_range_end(mm, start, end); diff --git a/mm/ksm.c b/mm/ksm.c index 6cb60f46cce5..be8f4576f842 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -1052,8 +1052,13 @@ static int write_protect_page(struct vm_area_struct *vma, struct page *page, * So we clear the pte and flush the tlb before the check * this assure us that no O_DIRECT can happen after the check * or in the middle of the check. + * + * No need to notify as we are downgrading page table to read + * only not changing it to point to a new page. + * + * See Documentation/vm/mmu_notifier.txt */ - entry = ptep_clear_flush_notify(vma, pvmw.address, pvmw.pte); + entry = ptep_clear_flush(vma, pvmw.address, pvmw.pte); /* * Check that no O_DIRECT or similar I/O is in progress on the * page @@ -1136,7 +1141,13 @@ static int replace_page(struct vm_area_struct *vma, struct page *page, } flush_cache_page(vma, addr, pte_pfn(*ptep)); - ptep_clear_flush_notify(vma, addr, ptep); + /* + * No need to notify as we are replacing a read only page with another + * read only page with the same content. + * + * See Documentation/vm/mmu_notifier.txt + */ + ptep_clear_flush(vma, addr, ptep); set_pte_at_notify(mm, addr, ptep, newpte); page_remove_rmap(page, false); diff --git a/mm/rmap.c b/mm/rmap.c index b874c4761e84..7dfc0975de4b 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -939,10 +939,15 @@ static bool page_mkclean_one(struct page *page, struct vm_area_struct *vma, #endif } - if (ret) { - mmu_notifier_invalidate_range(vma->vm_mm, cstart, cend); + /* + * No need to call mmu_notifier_invalidate_range() as we are + * downgrading page table protection not changing it to point + * to a new page. + * + * See Documentation/vm/mmu_notifier.txt + */ + if (ret) (*cleaned)++; - } } mmu_notifier_invalidate_range_end(vma->vm_mm, start, end); @@ -1426,6 +1431,10 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, if (pte_soft_dirty(pteval)) swp_pte = pte_swp_mksoft_dirty(swp_pte); set_pte_at(mm, pvmw.address, pvmw.pte, swp_pte); + /* + * No need to invalidate here it will synchronize on + * against the special swap migration pte. + */ goto discard; } @@ -1483,6 +1492,9 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, * will take care of the rest. */ dec_mm_counter(mm, mm_counter(page)); + /* We have to invalidate as we cleared the pte */ + mmu_notifier_invalidate_range(mm, address, + address + PAGE_SIZE); } else if (IS_ENABLED(CONFIG_MIGRATION) && (flags & (TTU_MIGRATION|TTU_SPLIT_FREEZE))) { swp_entry_t entry; @@ -1498,6 +1510,10 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, if (pte_soft_dirty(pteval)) swp_pte = pte_swp_mksoft_dirty(swp_pte); set_pte_at(mm, address, pvmw.pte, swp_pte); + /* + * No need to invalidate here it will synchronize on + * against the special swap migration pte. + */ } else if (PageAnon(page)) { swp_entry_t entry = { .val = page_private(subpage) }; pte_t swp_pte; @@ -1509,6 +1525,8 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, WARN_ON_ONCE(1); ret = false; /* We have to invalidate as we cleared the pte */ + mmu_notifier_invalidate_range(mm, address, + address + PAGE_SIZE); page_vma_mapped_walk_done(&pvmw); break; } @@ -1516,6 +1534,9 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, /* MADV_FREE page check */ if (!PageSwapBacked(page)) { if (!PageDirty(page)) { + /* Invalidate as we cleared the pte */ + mmu_notifier_invalidate_range(mm, + address, address + PAGE_SIZE); dec_mm_counter(mm, MM_ANONPAGES); goto discard; } @@ -1549,13 +1570,39 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, if (pte_soft_dirty(pteval)) swp_pte = pte_swp_mksoft_dirty(swp_pte); set_pte_at(mm, address, pvmw.pte, swp_pte); - } else + /* Invalidate as we cleared the pte */ + mmu_notifier_invalidate_range(mm, address, + address + PAGE_SIZE); + } else { + /* + * We should not need to notify here as we reach this + * case only from freeze_page() itself only call from + * split_huge_page_to_list() so everything below must + * be true: + * - page is not anonymous + * - page is locked + * + * So as it is a locked file back page thus it can not + * be remove from the page cache and replace by a new + * page before mmu_notifier_invalidate_range_end so no + * concurrent thread might update its page table to + * point at new page while a device still is using this + * page. + * + * See Documentation/vm/mmu_notifier.txt + */ dec_mm_counter(mm, mm_counter_file(page)); + } discard: + /* + * No need to call mmu_notifier_invalidate_range() it has be + * done above for all cases requiring it to happen under page + * table lock before mmu_notifier_invalidate_range_end() + * + * See Documentation/vm/mmu_notifier.txt + */ page_remove_rmap(subpage, PageHuge(page)); put_page(page); - mmu_notifier_invalidate_range(mm, address, - address + PAGE_SIZE); } mmu_notifier_invalidate_range_end(vma->vm_mm, start, end); -- cgit v1.2.3 From b4e98d9ac775907cc53fb08fcb6776deb7694e30 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Wed, 15 Nov 2017 17:35:33 -0800 Subject: mm: account pud page tables On a machine with 5-level paging support a process can allocate significant amount of memory and stay unnoticed by oom-killer and memory cgroup. The trick is to allocate a lot of PUD page tables. We don't account PUD page tables, only PMD and PTE. We already addressed the same issue for PMD page tables, see commit dc6c9a35b66b ("mm: account pmd page tables to the process"). Introduction of 5-level paging brings the same issue for PUD page tables. The patch expands accounting to PUD level. [kirill.shutemov@linux.intel.com: s/pmd_t/pud_t/] Link: http://lkml.kernel.org/r/20171004074305.x35eh5u7ybbt5kar@black.fi.intel.com [heiko.carstens@de.ibm.com: s390/mm: fix pud table accounting] Link: http://lkml.kernel.org/r/20171103090551.18231-1-heiko.carstens@de.ibm.com Link: http://lkml.kernel.org/r/20171002080427.3320-1-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov Signed-off-by: Heiko Carstens Acked-by: Rik van Riel Acked-by: Michal Hocko Cc: Vlastimil Babka Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/sysctl/vm.txt | 8 ++++---- arch/powerpc/mm/hugetlbpage.c | 1 + arch/s390/include/asm/mmu_context.h | 4 +++- arch/sparc/mm/hugetlbpage.c | 1 + fs/proc/task_mmu.c | 5 ++++- include/linux/mm.h | 36 +++++++++++++++++++++++++++++++++--- include/linux/mm_types.h | 3 +++ kernel/fork.c | 4 ++++ mm/debug.c | 6 ++++-- mm/memory.c | 15 +++++++++------ mm/oom_kill.c | 8 +++++--- 11 files changed, 71 insertions(+), 20 deletions(-) (limited to 'Documentation') diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 30fd16b14196..2729e8db9492 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -629,10 +629,10 @@ oom_dump_tasks Enables a system-wide task dump (excluding kernel threads) to be produced when the kernel performs an OOM-killing and includes such information as -pid, uid, tgid, vm size, rss, nr_ptes, nr_pmds, swapents, oom_score_adj -score, and name. This is helpful to determine why the OOM killer was -invoked, to identify the rogue task that caused it, and to determine why -the OOM killer chose the task it did to kill. +pid, uid, tgid, vm size, rss, nr_ptes, nr_pmds, nr_puds, swapents, +oom_score_adj score, and name. This is helpful to determine why the OOM +killer was invoked, to identify the rogue task that caused it, and to +determine why the OOM killer chose the task it did to kill. If this is set to zero, this information is suppressed. On very large systems with thousands of tasks it may not be feasible to dump diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 1571a498a33f..a9b9083c5e49 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -433,6 +433,7 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, pud = pud_offset(pgd, start); pgd_clear(pgd); pud_free_tlb(tlb, pud, start); + mm_dec_nr_puds(tlb->mm); } /* diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index 43607bb12cc2..cf4c1cb17dcd 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -44,6 +44,8 @@ static inline int init_new_context(struct task_struct *tsk, mm->context.asce_limit = STACK_TOP_MAX; mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH | _ASCE_USER_BITS | _ASCE_TYPE_REGION3; + /* pgd_alloc() did not account this pud */ + mm_inc_nr_puds(mm); break; case -PAGE_SIZE: /* forked 5-level task, set new asce with new_mm->pgd */ @@ -59,7 +61,7 @@ static inline int init_new_context(struct task_struct *tsk, /* forked 2-level compat task, set new asce with new mm->pgd */ mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH | _ASCE_USER_BITS | _ASCE_TYPE_SEGMENT; - /* pgd_alloc() did not increase mm->nr_pmds */ + /* pgd_alloc() did not account this pmd */ mm_inc_nr_pmds(mm); } crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm)); diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c index 5078b7f68890..01f63b4ee2b4 100644 --- a/arch/sparc/mm/hugetlbpage.c +++ b/arch/sparc/mm/hugetlbpage.c @@ -472,6 +472,7 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd, pud = pud_offset(pgd, start); pgd_clear(pgd); pud_free_tlb(tlb, pud, start); + mm_dec_nr_puds(tlb->mm); } void hugetlb_free_pgd_range(struct mmu_gather *tlb, diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 6744bd706ecf..a05ce6186f99 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -26,7 +26,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) { - unsigned long text, lib, swap, ptes, pmds, anon, file, shmem; + unsigned long text, lib, swap, ptes, pmds, puds, anon, file, shmem; unsigned long hiwater_vm, total_vm, hiwater_rss, total_rss; anon = get_mm_counter(mm, MM_ANONPAGES); @@ -52,6 +52,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) swap = get_mm_counter(mm, MM_SWAPENTS); ptes = PTRS_PER_PTE * sizeof(pte_t) * atomic_long_read(&mm->nr_ptes); pmds = PTRS_PER_PMD * sizeof(pmd_t) * mm_nr_pmds(mm); + puds = PTRS_PER_PUD * sizeof(pud_t) * mm_nr_puds(mm); seq_printf(m, "VmPeak:\t%8lu kB\n" "VmSize:\t%8lu kB\n" @@ -68,6 +69,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) "VmLib:\t%8lu kB\n" "VmPTE:\t%8lu kB\n" "VmPMD:\t%8lu kB\n" + "VmPUD:\t%8lu kB\n" "VmSwap:\t%8lu kB\n", hiwater_vm << (PAGE_SHIFT-10), total_vm << (PAGE_SHIFT-10), @@ -82,6 +84,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) mm->stack_vm << (PAGE_SHIFT-10), text, lib, ptes >> 10, pmds >> 10, + puds >> 10, swap << (PAGE_SHIFT-10)); hugetlb_report_usage(m, mm); } diff --git a/include/linux/mm.h b/include/linux/mm.h index 91b46f99b4d2..9af86f39d928 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1599,14 +1599,44 @@ static inline int __p4d_alloc(struct mm_struct *mm, pgd_t *pgd, int __p4d_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address); #endif -#ifdef __PAGETABLE_PUD_FOLDED +#if defined(__PAGETABLE_PUD_FOLDED) || !defined(CONFIG_MMU) static inline int __pud_alloc(struct mm_struct *mm, p4d_t *p4d, unsigned long address) { return 0; } + +static inline unsigned long mm_nr_puds(const struct mm_struct *mm) +{ + return 0; +} + +static inline void mm_nr_puds_init(struct mm_struct *mm) {} +static inline void mm_inc_nr_puds(struct mm_struct *mm) {} +static inline void mm_dec_nr_puds(struct mm_struct *mm) {} + #else int __pud_alloc(struct mm_struct *mm, p4d_t *p4d, unsigned long address); + +static inline void mm_nr_puds_init(struct mm_struct *mm) +{ + atomic_long_set(&mm->nr_puds, 0); +} + +static inline unsigned long mm_nr_puds(const struct mm_struct *mm) +{ + return atomic_long_read(&mm->nr_puds); +} + +static inline void mm_inc_nr_puds(struct mm_struct *mm) +{ + atomic_long_inc(&mm->nr_puds); +} + +static inline void mm_dec_nr_puds(struct mm_struct *mm) +{ + atomic_long_dec(&mm->nr_puds); +} #endif #if defined(__PAGETABLE_PMD_FOLDED) || !defined(CONFIG_MMU) @@ -1618,7 +1648,7 @@ static inline int __pmd_alloc(struct mm_struct *mm, pud_t *pud, static inline void mm_nr_pmds_init(struct mm_struct *mm) {} -static inline unsigned long mm_nr_pmds(struct mm_struct *mm) +static inline unsigned long mm_nr_pmds(const struct mm_struct *mm) { return 0; } @@ -1634,7 +1664,7 @@ static inline void mm_nr_pmds_init(struct mm_struct *mm) atomic_long_set(&mm->nr_pmds, 0); } -static inline unsigned long mm_nr_pmds(struct mm_struct *mm) +static inline unsigned long mm_nr_pmds(const struct mm_struct *mm) { return atomic_long_read(&mm->nr_pmds); } diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index d1b8e8f97fc2..e9e561e02d22 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -404,6 +404,9 @@ struct mm_struct { atomic_long_t nr_ptes; /* PTE page table pages */ #if CONFIG_PGTABLE_LEVELS > 2 atomic_long_t nr_pmds; /* PMD page table pages */ +#endif +#if CONFIG_PGTABLE_LEVELS > 3 + atomic_long_t nr_puds; /* PUD page table pages */ #endif int map_count; /* number of VMAs */ diff --git a/kernel/fork.c b/kernel/fork.c index 07cc743698d3..a4eb6f289365 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -819,6 +819,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p, mm->core_state = NULL; atomic_long_set(&mm->nr_ptes, 0); mm_nr_pmds_init(mm); + mm_nr_puds_init(mm); mm->map_count = 0; mm->locked_vm = 0; mm->pinned_vm = 0; @@ -878,6 +879,9 @@ static void check_mm(struct mm_struct *mm) if (mm_nr_pmds(mm)) pr_alert("BUG: non-zero nr_pmds on freeing mm: %ld\n", mm_nr_pmds(mm)); + if (mm_nr_puds(mm)) + pr_alert("BUG: non-zero nr_puds on freeing mm: %ld\n", + mm_nr_puds(mm)); #if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS VM_BUG_ON_MM(mm->pmd_huge_pte, mm); diff --git a/mm/debug.c b/mm/debug.c index 6726bec731c9..a12d826bb774 100644 --- a/mm/debug.c +++ b/mm/debug.c @@ -105,7 +105,8 @@ void dump_mm(const struct mm_struct *mm) "get_unmapped_area %p\n" #endif "mmap_base %lu mmap_legacy_base %lu highest_vm_end %lu\n" - "pgd %p mm_users %d mm_count %d nr_ptes %lu nr_pmds %lu map_count %d\n" + "pgd %p mm_users %d mm_count %d\n" + "nr_ptes %lu nr_pmds %lu nr_puds %lu map_count %d\n" "hiwater_rss %lx hiwater_vm %lx total_vm %lx locked_vm %lx\n" "pinned_vm %lx data_vm %lx exec_vm %lx stack_vm %lx\n" "start_code %lx end_code %lx start_data %lx end_data %lx\n" @@ -136,7 +137,8 @@ void dump_mm(const struct mm_struct *mm) mm->pgd, atomic_read(&mm->mm_users), atomic_read(&mm->mm_count), atomic_long_read((atomic_long_t *)&mm->nr_ptes), - mm_nr_pmds((struct mm_struct *)mm), + mm_nr_pmds(mm), + mm_nr_puds(mm), mm->map_count, mm->hiwater_rss, mm->hiwater_vm, mm->total_vm, mm->locked_vm, mm->pinned_vm, mm->data_vm, mm->exec_vm, mm->stack_vm, diff --git a/mm/memory.c b/mm/memory.c index 42fb30300bb5..6bbd4078ec98 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -506,6 +506,7 @@ static inline void free_pud_range(struct mmu_gather *tlb, p4d_t *p4d, pud = pud_offset(p4d, start); p4d_clear(p4d); pud_free_tlb(tlb, pud, start); + mm_dec_nr_puds(tlb->mm); } static inline void free_p4d_range(struct mmu_gather *tlb, pgd_t *pgd, @@ -4149,15 +4150,17 @@ int __pud_alloc(struct mm_struct *mm, p4d_t *p4d, unsigned long address) spin_lock(&mm->page_table_lock); #ifndef __ARCH_HAS_5LEVEL_HACK - if (p4d_present(*p4d)) /* Another has populated it */ - pud_free(mm, new); - else + if (!p4d_present(*p4d)) { + mm_inc_nr_puds(mm); p4d_populate(mm, p4d, new); -#else - if (pgd_present(*p4d)) /* Another has populated it */ + } else /* Another has populated it */ pud_free(mm, new); - else +#else + if (!pgd_present(*p4d)) { + mm_inc_nr_puds(mm); pgd_populate(mm, p4d, new); + } else /* Another has populated it */ + pud_free(mm, new); #endif /* __ARCH_HAS_5LEVEL_HACK */ spin_unlock(&mm->page_table_lock); return 0; diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 3023919970f7..f642a45b7f14 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -221,7 +221,8 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg, * task's rss, pagetable and swap space use. */ points = get_mm_rss(p->mm) + get_mm_counter(p->mm, MM_SWAPENTS) + - atomic_long_read(&p->mm->nr_ptes) + mm_nr_pmds(p->mm); + atomic_long_read(&p->mm->nr_ptes) + mm_nr_pmds(p->mm) + + mm_nr_puds(p->mm); task_unlock(p); /* @@ -397,7 +398,7 @@ static void dump_tasks(struct mem_cgroup *memcg, const nodemask_t *nodemask) struct task_struct *p; struct task_struct *task; - pr_info("[ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name\n"); + pr_info("[ pid ] uid tgid total_vm rss nr_ptes nr_pmds nr_puds swapents oom_score_adj name\n"); rcu_read_lock(); for_each_process(p) { if (oom_unkillable_task(p, memcg, nodemask)) @@ -413,11 +414,12 @@ static void dump_tasks(struct mem_cgroup *memcg, const nodemask_t *nodemask) continue; } - pr_info("[%5d] %5d %5d %8lu %8lu %7ld %7ld %8lu %5hd %s\n", + pr_info("[%5d] %5d %5d %8lu %8lu %7ld %7ld %7ld %8lu %5hd %s\n", task->pid, from_kuid(&init_user_ns, task_uid(task)), task->tgid, task->mm->total_vm, get_mm_rss(task->mm), atomic_long_read(&task->mm->nr_ptes), mm_nr_pmds(task->mm), + mm_nr_puds(task->mm), get_mm_counter(task->mm, MM_SWAPENTS), task->signal->oom_score_adj, task->comm); task_unlock(task); -- cgit v1.2.3 From af5b0f6a09e42c9f4fa87735f2a366748767b686 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Wed, 15 Nov 2017 17:35:40 -0800 Subject: mm: consolidate page table accounting Currently, we account page tables separately for each page table level, but that's redundant -- we only make use of total memory allocated to page tables for oom_badness calculation. We also provide the information to userspace, but it has dubious value there too. This patch switches page table accounting to single counter. mm->pgtables_bytes is now used to account all page table levels. We use bytes, because page table size for different levels of page table tree may be different. The change has user-visible effect: we don't have VmPMD and VmPUD reported in /proc/[pid]/status. Not sure if anybody uses them. (As alternative, we can always report 0 kB for them.) OOM-killer report is also slightly changed: we now report pgtables_bytes instead of nr_ptes, nr_pmd, nr_puds. Apart from reducing number of counters per-mm, the benefit is that we now calculate oom_badness() more correctly for machines which have different size of page tables depending on level or where page tables are less than a page in size. The only downside can be debuggability because we do not know which page table level could leak. But I do not remember many bugs that would be caught by separate counters so I wouldn't lose sleep over this. [akpm@linux-foundation.org: fix mm/huge_memory.c] Link: http://lkml.kernel.org/r/20171006100651.44742-2-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov Acked-by: Michal Hocko [kirill.shutemov@linux.intel.com: fix build] Link: http://lkml.kernel.org/r/20171016150113.ikfxy3e7zzfvsr4w@black.fi.intel.com Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/filesystems/proc.txt | 1 - Documentation/sysctl/vm.txt | 8 +++--- fs/proc/task_mmu.c | 11 ++------ include/linux/mm.h | 58 ++++++++------------------------------ include/linux/mm_types.h | 8 +----- kernel/fork.c | 16 +++-------- mm/debug.c | 7 ++--- mm/huge_memory.c | 2 +- mm/oom_kill.c | 14 ++++----- 9 files changed, 32 insertions(+), 93 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index adba21b5ada7..ec571b9bb18a 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -250,7 +250,6 @@ Table 1-2: Contents of the status files (as of 4.8) VmExe size of text segment VmLib size of shared library code VmPTE size of page table entries - VmPMD size of second level page tables VmSwap amount of swap used by anonymous private data (shmem swap usage is not included) HugetlbPages size of hugetlb memory portions diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 2729e8db9492..3e579740b49f 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -629,10 +629,10 @@ oom_dump_tasks Enables a system-wide task dump (excluding kernel threads) to be produced when the kernel performs an OOM-killing and includes such information as -pid, uid, tgid, vm size, rss, nr_ptes, nr_pmds, nr_puds, swapents, -oom_score_adj score, and name. This is helpful to determine why the OOM -killer was invoked, to identify the rogue task that caused it, and to -determine why the OOM killer chose the task it did to kill. +pid, uid, tgid, vm size, rss, pgtables_bytes, swapents, oom_score_adj +score, and name. This is helpful to determine why the OOM killer was +invoked, to identify the rogue task that caused it, and to determine why +the OOM killer chose the task it did to kill. If this is set to zero, this information is suppressed. On very large systems with thousands of tasks it may not be feasible to dump diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 9bd2a0294ac1..875231c36cb3 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -26,7 +26,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) { - unsigned long text, lib, swap, ptes, pmds, puds, anon, file, shmem; + unsigned long text, lib, swap, anon, file, shmem; unsigned long hiwater_vm, total_vm, hiwater_rss, total_rss; anon = get_mm_counter(mm, MM_ANONPAGES); @@ -50,9 +50,6 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK)) >> 10; lib = (mm->exec_vm << (PAGE_SHIFT-10)) - text; swap = get_mm_counter(mm, MM_SWAPENTS); - ptes = PTRS_PER_PTE * sizeof(pte_t) * mm_nr_ptes(mm); - pmds = PTRS_PER_PMD * sizeof(pmd_t) * mm_nr_pmds(mm); - puds = PTRS_PER_PUD * sizeof(pud_t) * mm_nr_puds(mm); seq_printf(m, "VmPeak:\t%8lu kB\n" "VmSize:\t%8lu kB\n" @@ -68,8 +65,6 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) "VmExe:\t%8lu kB\n" "VmLib:\t%8lu kB\n" "VmPTE:\t%8lu kB\n" - "VmPMD:\t%8lu kB\n" - "VmPUD:\t%8lu kB\n" "VmSwap:\t%8lu kB\n", hiwater_vm << (PAGE_SHIFT-10), total_vm << (PAGE_SHIFT-10), @@ -82,9 +77,7 @@ void task_mem(struct seq_file *m, struct mm_struct *mm) shmem << (PAGE_SHIFT-10), mm->data_vm << (PAGE_SHIFT-10), mm->stack_vm << (PAGE_SHIFT-10), text, lib, - ptes >> 10, - pmds >> 10, - puds >> 10, + mm_pgtables_bytes(mm) >> 10, swap << (PAGE_SHIFT-10)); hugetlb_report_usage(m, mm); } diff --git a/include/linux/mm.h b/include/linux/mm.h index 2ca799f0d762..7c1e82a1aa77 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1605,37 +1605,20 @@ static inline int __pud_alloc(struct mm_struct *mm, p4d_t *p4d, { return 0; } - -static inline unsigned long mm_nr_puds(const struct mm_struct *mm) -{ - return 0; -} - -static inline void mm_nr_puds_init(struct mm_struct *mm) {} static inline void mm_inc_nr_puds(struct mm_struct *mm) {} static inline void mm_dec_nr_puds(struct mm_struct *mm) {} #else int __pud_alloc(struct mm_struct *mm, p4d_t *p4d, unsigned long address); -static inline void mm_nr_puds_init(struct mm_struct *mm) -{ - atomic_long_set(&mm->nr_puds, 0); -} - -static inline unsigned long mm_nr_puds(const struct mm_struct *mm) -{ - return atomic_long_read(&mm->nr_puds); -} - static inline void mm_inc_nr_puds(struct mm_struct *mm) { - atomic_long_inc(&mm->nr_puds); + atomic_long_add(PTRS_PER_PUD * sizeof(pud_t), &mm->pgtables_bytes); } static inline void mm_dec_nr_puds(struct mm_struct *mm) { - atomic_long_dec(&mm->nr_puds); + atomic_long_sub(PTRS_PER_PUD * sizeof(pud_t), &mm->pgtables_bytes); } #endif @@ -1646,64 +1629,47 @@ static inline int __pmd_alloc(struct mm_struct *mm, pud_t *pud, return 0; } -static inline void mm_nr_pmds_init(struct mm_struct *mm) {} - -static inline unsigned long mm_nr_pmds(const struct mm_struct *mm) -{ - return 0; -} - static inline void mm_inc_nr_pmds(struct mm_struct *mm) {} static inline void mm_dec_nr_pmds(struct mm_struct *mm) {} #else int __pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long address); -static inline void mm_nr_pmds_init(struct mm_struct *mm) -{ - atomic_long_set(&mm->nr_pmds, 0); -} - -static inline unsigned long mm_nr_pmds(const struct mm_struct *mm) -{ - return atomic_long_read(&mm->nr_pmds); -} - static inline void mm_inc_nr_pmds(struct mm_struct *mm) { - atomic_long_inc(&mm->nr_pmds); + atomic_long_add(PTRS_PER_PMD * sizeof(pmd_t), &mm->pgtables_bytes); } static inline void mm_dec_nr_pmds(struct mm_struct *mm) { - atomic_long_dec(&mm->nr_pmds); + atomic_long_sub(PTRS_PER_PMD * sizeof(pmd_t), &mm->pgtables_bytes); } #endif #ifdef CONFIG_MMU -static inline void mm_nr_ptes_init(struct mm_struct *mm) +static inline void mm_pgtables_bytes_init(struct mm_struct *mm) { - atomic_long_set(&mm->nr_ptes, 0); + atomic_long_set(&mm->pgtables_bytes, 0); } -static inline unsigned long mm_nr_ptes(const struct mm_struct *mm) +static inline unsigned long mm_pgtables_bytes(const struct mm_struct *mm) { - return atomic_long_read(&mm->nr_ptes); + return atomic_long_read(&mm->pgtables_bytes); } static inline void mm_inc_nr_ptes(struct mm_struct *mm) { - atomic_long_inc(&mm->nr_ptes); + atomic_long_add(PTRS_PER_PTE * sizeof(pte_t), &mm->pgtables_bytes); } static inline void mm_dec_nr_ptes(struct mm_struct *mm) { - atomic_long_dec(&mm->nr_ptes); + atomic_long_sub(PTRS_PER_PTE * sizeof(pte_t), &mm->pgtables_bytes); } #else -static inline void mm_nr_ptes_init(struct mm_struct *mm) {} -static inline unsigned long mm_nr_ptes(const struct mm_struct *mm) +static inline void mm_pgtables_bytes_init(struct mm_struct *mm) {} +static inline unsigned long mm_pgtables_bytes(const struct mm_struct *mm) { return 0; } diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index e42048020664..09643e0472fc 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -402,13 +402,7 @@ struct mm_struct { atomic_t mm_count; #ifdef CONFIG_MMU - atomic_long_t nr_ptes; /* PTE page table pages */ -#endif -#if CONFIG_PGTABLE_LEVELS > 2 - atomic_long_t nr_pmds; /* PMD page table pages */ -#endif -#if CONFIG_PGTABLE_LEVELS > 3 - atomic_long_t nr_puds; /* PUD page table pages */ + atomic_long_t pgtables_bytes; /* PTE page table pages */ #endif int map_count; /* number of VMAs */ diff --git a/kernel/fork.c b/kernel/fork.c index 946922a30ede..006dc5899a1a 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -817,9 +817,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p, init_rwsem(&mm->mmap_sem); INIT_LIST_HEAD(&mm->mmlist); mm->core_state = NULL; - mm_nr_ptes_init(mm); - mm_nr_pmds_init(mm); - mm_nr_puds_init(mm); + mm_pgtables_bytes_init(mm); mm->map_count = 0; mm->locked_vm = 0; mm->pinned_vm = 0; @@ -873,15 +871,9 @@ static void check_mm(struct mm_struct *mm) "mm:%p idx:%d val:%ld\n", mm, i, x); } - if (mm_nr_ptes(mm)) - pr_alert("BUG: non-zero nr_ptes on freeing mm: %ld\n", - mm_nr_ptes(mm)); - if (mm_nr_pmds(mm)) - pr_alert("BUG: non-zero nr_pmds on freeing mm: %ld\n", - mm_nr_pmds(mm)); - if (mm_nr_puds(mm)) - pr_alert("BUG: non-zero nr_puds on freeing mm: %ld\n", - mm_nr_puds(mm)); + if (mm_pgtables_bytes(mm)) + pr_alert("BUG: non-zero pgtables_bytes on freeing mm: %ld\n", + mm_pgtables_bytes(mm)); #if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS VM_BUG_ON_MM(mm->pmd_huge_pte, mm); diff --git a/mm/debug.c b/mm/debug.c index c9888a6d7875..d947f3e03b0d 100644 --- a/mm/debug.c +++ b/mm/debug.c @@ -105,8 +105,7 @@ void dump_mm(const struct mm_struct *mm) "get_unmapped_area %p\n" #endif "mmap_base %lu mmap_legacy_base %lu highest_vm_end %lu\n" - "pgd %p mm_users %d mm_count %d\n" - "nr_ptes %lu nr_pmds %lu nr_puds %lu map_count %d\n" + "pgd %p mm_users %d mm_count %d pgtables_bytes %lu map_count %d\n" "hiwater_rss %lx hiwater_vm %lx total_vm %lx locked_vm %lx\n" "pinned_vm %lx data_vm %lx exec_vm %lx stack_vm %lx\n" "start_code %lx end_code %lx start_data %lx end_data %lx\n" @@ -136,9 +135,7 @@ void dump_mm(const struct mm_struct *mm) mm->mmap_base, mm->mmap_legacy_base, mm->highest_vm_end, mm->pgd, atomic_read(&mm->mm_users), atomic_read(&mm->mm_count), - mm_nr_ptes(mm), - mm_nr_pmds(mm), - mm_nr_puds(mm), + mm_pgtables_bytes(mm), mm->map_count, mm->hiwater_rss, mm->hiwater_vm, mm->total_vm, mm->locked_vm, mm->pinned_vm, mm->data_vm, mm->exec_vm, mm->stack_vm, diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 3610d81c062a..86fe697e8bfb 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -942,7 +942,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm, set_pmd_at(src_mm, addr, src_pmd, pmd); } add_mm_counter(dst_mm, MM_ANONPAGES, HPAGE_PMD_NR); - atomic_long_inc(&dst_mm->nr_ptes); + mm_inc_nr_ptes(dst_mm); pgtable_trans_huge_deposit(dst_mm, dst_pmd, pgtable); set_pmd_at(dst_mm, addr, dst_pmd, pmd); ret = 0; diff --git a/mm/oom_kill.c b/mm/oom_kill.c index f9300141480e..26add8a0d1f7 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -221,7 +221,7 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg, * task's rss, pagetable and swap space use. */ points = get_mm_rss(p->mm) + get_mm_counter(p->mm, MM_SWAPENTS) + - mm_nr_ptes(p->mm) + mm_nr_pmds(p->mm) + mm_nr_puds(p->mm); + mm_pgtables_bytes(p->mm) / PAGE_SIZE; task_unlock(p); /* @@ -389,15 +389,15 @@ static void select_bad_process(struct oom_control *oc) * Dumps the current memory state of all eligible tasks. Tasks not in the same * memcg, not in the same cpuset, or bound to a disjoint set of mempolicy nodes * are not shown. - * State information includes task's pid, uid, tgid, vm size, rss, nr_ptes, - * swapents, oom_score_adj value, and name. + * State information includes task's pid, uid, tgid, vm size, rss, + * pgtables_bytes, swapents, oom_score_adj value, and name. */ static void dump_tasks(struct mem_cgroup *memcg, const nodemask_t *nodemask) { struct task_struct *p; struct task_struct *task; - pr_info("[ pid ] uid tgid total_vm rss nr_ptes nr_pmds nr_puds swapents oom_score_adj name\n"); + pr_info("[ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name\n"); rcu_read_lock(); for_each_process(p) { if (oom_unkillable_task(p, memcg, nodemask)) @@ -413,12 +413,10 @@ static void dump_tasks(struct mem_cgroup *memcg, const nodemask_t *nodemask) continue; } - pr_info("[%5d] %5d %5d %8lu %8lu %7ld %7ld %7ld %8lu %5hd %s\n", + pr_info("[%5d] %5d %5d %8lu %8lu %8ld %8lu %5hd %s\n", task->pid, from_kuid(&init_user_ns, task_uid(task)), task->tgid, task->mm->total_vm, get_mm_rss(task->mm), - mm_nr_ptes(task->mm), - mm_nr_pmds(task->mm), - mm_nr_puds(task->mm), + mm_pgtables_bytes(task->mm), get_mm_counter(task->mm, MM_SWAPENTS), task->signal->oom_score_adj, task->comm); task_unlock(task); -- cgit v1.2.3 From 4675ff05de2d76d167336b368bd07f3fef6ed5a6 Mon Sep 17 00:00:00 2001 From: "Levin, Alexander (Sasha Levin)" Date: Wed, 15 Nov 2017 17:36:02 -0800 Subject: kmemcheck: rip it out Fix up makefiles, remove references, and git rm kmemcheck. Link: http://lkml.kernel.org/r/20171007030159.22241-4-alexander.levin@verizon.com Signed-off-by: Sasha Levin Cc: Steven Rostedt Cc: Vegard Nossum Cc: Pekka Enberg Cc: Michal Hocko Cc: Eric W. Biederman Cc: Alexander Potapenko Cc: Tim Hansen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/admin-guide/kernel-parameters.txt | 7 - Documentation/dev-tools/index.rst | 1 - Documentation/dev-tools/kmemcheck.rst | 733 ------------------------ MAINTAINERS | 10 - arch/x86/Kconfig | 3 +- arch/x86/include/asm/kmemcheck.h | 42 -- arch/x86/include/asm/string_32.h | 9 - arch/x86/include/asm/string_64.h | 8 - arch/x86/kernel/cpu/intel.c | 15 - arch/x86/mm/Makefile | 2 - arch/x86/mm/init.c | 5 +- arch/x86/mm/kmemcheck/Makefile | 1 - arch/x86/mm/kmemcheck/error.c | 227 -------- arch/x86/mm/kmemcheck/error.h | 15 - arch/x86/mm/kmemcheck/kmemcheck.c | 658 --------------------- arch/x86/mm/kmemcheck/opcode.c | 106 ---- arch/x86/mm/kmemcheck/opcode.h | 9 - arch/x86/mm/kmemcheck/pte.c | 22 - arch/x86/mm/kmemcheck/pte.h | 10 - arch/x86/mm/kmemcheck/selftest.c | 70 --- arch/x86/mm/kmemcheck/selftest.h | 6 - arch/x86/mm/kmemcheck/shadow.c | 173 ------ arch/x86/mm/kmemcheck/shadow.h | 18 - include/linux/interrupt.h | 15 - include/linux/kmemcheck.h | 171 ------ kernel/softirq.c | 10 - kernel/sysctl.c | 10 - lib/Kconfig.debug | 6 +- lib/Kconfig.kmemcheck | 94 --- mm/Kconfig.debug | 1 - mm/Makefile | 2 - mm/kmemcheck.c | 125 ---- mm/slub.c | 5 +- scripts/kernel-doc | 2 - tools/include/linux/kmemcheck.h | 8 - 35 files changed, 7 insertions(+), 2592 deletions(-) delete mode 100644 Documentation/dev-tools/kmemcheck.rst delete mode 100644 arch/x86/mm/kmemcheck/Makefile delete mode 100644 arch/x86/mm/kmemcheck/kmemcheck.c delete mode 100644 arch/x86/mm/kmemcheck/shadow.c delete mode 100644 lib/Kconfig.kmemcheck (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index b74e13312fdc..00bb04972612 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1864,13 +1864,6 @@ Built with CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y, the default is off. - kmemcheck= [X86] Boot-time kmemcheck enable/disable/one-shot mode - Valid arguments: 0, 1, 2 - kmemcheck=0 (disabled) - kmemcheck=1 (enabled) - kmemcheck=2 (one-shot mode) - Default: 2 (one-shot mode) - kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs. Default is 0 (don't ignore, but inject #GP) diff --git a/Documentation/dev-tools/index.rst b/Documentation/dev-tools/index.rst index a81787cd47d7..e313925fb0fa 100644 --- a/Documentation/dev-tools/index.rst +++ b/Documentation/dev-tools/index.rst @@ -21,7 +21,6 @@ whole; patches welcome! kasan ubsan kmemleak - kmemcheck gdb-kernel-debugging kgdb kselftest diff --git a/Documentation/dev-tools/kmemcheck.rst b/Documentation/dev-tools/kmemcheck.rst deleted file mode 100644 index 7f3d1985de74..000000000000 --- a/Documentation/dev-tools/kmemcheck.rst +++ /dev/null @@ -1,733 +0,0 @@ -Getting started with kmemcheck -============================== - -Vegard Nossum - - -Introduction ------------- - -kmemcheck is a debugging feature for the Linux Kernel. More specifically, it -is a dynamic checker that detects and warns about some uses of uninitialized -memory. - -Userspace programmers might be familiar with Valgrind's memcheck. The main -difference between memcheck and kmemcheck is that memcheck works for userspace -programs only, and kmemcheck works for the kernel only. The implementations -are of course vastly different. Because of this, kmemcheck is not as accurate -as memcheck, but it turns out to be good enough in practice to discover real -programmer errors that the compiler is not able to find through static -analysis. - -Enabling kmemcheck on a kernel will probably slow it down to the extent that -the machine will not be usable for normal workloads such as e.g. an -interactive desktop. kmemcheck will also cause the kernel to use about twice -as much memory as normal. For this reason, kmemcheck is strictly a debugging -feature. - - -Downloading ------------ - -As of version 2.6.31-rc1, kmemcheck is included in the mainline kernel. - - -Configuring and compiling -------------------------- - -kmemcheck only works for the x86 (both 32- and 64-bit) platform. A number of -configuration variables must have specific settings in order for the kmemcheck -menu to even appear in "menuconfig". These are: - -- ``CONFIG_CC_OPTIMIZE_FOR_SIZE=n`` - This option is located under "General setup" / "Optimize for size". - - Without this, gcc will use certain optimizations that usually lead to - false positive warnings from kmemcheck. An example of this is a 16-bit - field in a struct, where gcc may load 32 bits, then discard the upper - 16 bits. kmemcheck sees only the 32-bit load, and may trigger a - warning for the upper 16 bits (if they're uninitialized). - -- ``CONFIG_SLAB=y`` or ``CONFIG_SLUB=y`` - This option is located under "General setup" / "Choose SLAB - allocator". - -- ``CONFIG_FUNCTION_TRACER=n`` - This option is located under "Kernel hacking" / "Tracers" / "Kernel - Function Tracer" - - When function tracing is compiled in, gcc emits a call to another - function at the beginning of every function. This means that when the - page fault handler is called, the ftrace framework will be called - before kmemcheck has had a chance to handle the fault. If ftrace then - modifies memory that was tracked by kmemcheck, the result is an - endless recursive page fault. - -- ``CONFIG_DEBUG_PAGEALLOC=n`` - This option is located under "Kernel hacking" / "Memory Debugging" - / "Debug page memory allocations". - -In addition, I highly recommend turning on ``CONFIG_DEBUG_INFO=y``. This is also -located under "Kernel hacking". With this, you will be able to get line number -information from the kmemcheck warnings, which is extremely valuable in -debugging a problem. This option is not mandatory, however, because it slows -down the compilation process and produces a much bigger kernel image. - -Now the kmemcheck menu should be visible (under "Kernel hacking" / "Memory -Debugging" / "kmemcheck: trap use of uninitialized memory"). Here follows -a description of the kmemcheck configuration variables: - -- ``CONFIG_KMEMCHECK`` - This must be enabled in order to use kmemcheck at all... - -- ``CONFIG_KMEMCHECK_``[``DISABLED`` | ``ENABLED`` | ``ONESHOT``]``_BY_DEFAULT`` - This option controls the status of kmemcheck at boot-time. "Enabled" - will enable kmemcheck right from the start, "disabled" will boot the - kernel as normal (but with the kmemcheck code compiled in, so it can - be enabled at run-time after the kernel has booted), and "one-shot" is - a special mode which will turn kmemcheck off automatically after - detecting the first use of uninitialized memory. - - If you are using kmemcheck to actively debug a problem, then you - probably want to choose "enabled" here. - - The one-shot mode is mostly useful in automated test setups because it - can prevent floods of warnings and increase the chances of the machine - surviving in case something is really wrong. In other cases, the one- - shot mode could actually be counter-productive because it would turn - itself off at the very first error -- in the case of a false positive - too -- and this would come in the way of debugging the specific - problem you were interested in. - - If you would like to use your kernel as normal, but with a chance to - enable kmemcheck in case of some problem, it might be a good idea to - choose "disabled" here. When kmemcheck is disabled, most of the run- - time overhead is not incurred, and the kernel will be almost as fast - as normal. - -- ``CONFIG_KMEMCHECK_QUEUE_SIZE`` - Select the maximum number of error reports to store in an internal - (fixed-size) buffer. Since errors can occur virtually anywhere and in - any context, we need a temporary storage area which is guaranteed not - to generate any other page faults when accessed. The queue will be - emptied as soon as a tasklet may be scheduled. If the queue is full, - new error reports will be lost. - - The default value of 64 is probably fine. If some code produces more - than 64 errors within an irqs-off section, then the code is likely to - produce many, many more, too, and these additional reports seldom give - any more information (the first report is usually the most valuable - anyway). - - This number might have to be adjusted if you are not using serial - console or similar to capture the kernel log. If you are using the - "dmesg" command to save the log, then getting a lot of kmemcheck - warnings might overflow the kernel log itself, and the earlier reports - will get lost in that way instead. Try setting this to 10 or so on - such a setup. - -- ``CONFIG_KMEMCHECK_SHADOW_COPY_SHIFT`` - Select the number of shadow bytes to save along with each entry of the - error-report queue. These bytes indicate what parts of an allocation - are initialized, uninitialized, etc. and will be displayed when an - error is detected to help the debugging of a particular problem. - - The number entered here is actually the logarithm of the number of - bytes that will be saved. So if you pick for example 5 here, kmemcheck - will save 2^5 = 32 bytes. - - The default value should be fine for debugging most problems. It also - fits nicely within 80 columns. - -- ``CONFIG_KMEMCHECK_PARTIAL_OK`` - This option (when enabled) works around certain GCC optimizations that - produce 32-bit reads from 16-bit variables where the upper 16 bits are - thrown away afterwards. - - The default value (enabled) is recommended. This may of course hide - some real errors, but disabling it would probably produce a lot of - false positives. - -- ``CONFIG_KMEMCHECK_BITOPS_OK`` - This option silences warnings that would be generated for bit-field - accesses where not all the bits are initialized at the same time. This - may also hide some real bugs. - - This option is probably obsolete, or it should be replaced with - the kmemcheck-/bitfield-annotations for the code in question. The - default value is therefore fine. - -Now compile the kernel as usual. - - -How to use ----------- - -Booting -~~~~~~~ - -First some information about the command-line options. There is only one -option specific to kmemcheck, and this is called "kmemcheck". It can be used -to override the default mode as chosen by the ``CONFIG_KMEMCHECK_*_BY_DEFAULT`` -option. Its possible settings are: - -- ``kmemcheck=0`` (disabled) -- ``kmemcheck=1`` (enabled) -- ``kmemcheck=2`` (one-shot mode) - -If SLUB debugging has been enabled in the kernel, it may take precedence over -kmemcheck in such a way that the slab caches which are under SLUB debugging -will not be tracked by kmemcheck. In order to ensure that this doesn't happen -(even though it shouldn't by default), use SLUB's boot option ``slub_debug``, -like this: ``slub_debug=-`` - -In fact, this option may also be used for fine-grained control over SLUB vs. -kmemcheck. For example, if the command line includes -``kmemcheck=1 slub_debug=,dentry``, then SLUB debugging will be used only -for the "dentry" slab cache, and with kmemcheck tracking all the other -caches. This is advanced usage, however, and is not generally recommended. - - -Run-time enable/disable -~~~~~~~~~~~~~~~~~~~~~~~ - -When the kernel has booted, it is possible to enable or disable kmemcheck at -run-time. WARNING: This feature is still experimental and may cause false -positive warnings to appear. Therefore, try not to use this. If you find that -it doesn't work properly (e.g. you see an unreasonable amount of warnings), I -will be happy to take bug reports. - -Use the file ``/proc/sys/kernel/kmemcheck`` for this purpose, e.g.:: - - $ echo 0 > /proc/sys/kernel/kmemcheck # disables kmemcheck - -The numbers are the same as for the ``kmemcheck=`` command-line option. - - -Debugging -~~~~~~~~~ - -A typical report will look something like this:: - - WARNING: kmemcheck: Caught 32-bit read from uninitialized memory (ffff88003e4a2024) - 80000000000000000000000000000000000000000088ffff0000000000000000 - i i i i u u u u i i i i i i i i u u u u u u u u u u u u u u u u - ^ - - Pid: 1856, comm: ntpdate Not tainted 2.6.29-rc5 #264 945P-A - RIP: 0010:[] [] __dequeue_signal+0xc8/0x190 - RSP: 0018:ffff88003cdf7d98 EFLAGS: 00210002 - RAX: 0000000000000030 RBX: ffff88003d4ea968 RCX: 0000000000000009 - RDX: ffff88003e5d6018 RSI: ffff88003e5d6024 RDI: ffff88003cdf7e84 - RBP: ffff88003cdf7db8 R08: ffff88003e5d6000 R09: 0000000000000000 - R10: 0000000000000080 R11: 0000000000000000 R12: 000000000000000e - R13: ffff88003cdf7e78 R14: ffff88003d530710 R15: ffff88003d5a98c8 - FS: 0000000000000000(0000) GS:ffff880001982000(0063) knlGS:00000 - CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 - CR2: ffff88003f806ea0 CR3: 000000003c036000 CR4: 00000000000006a0 - DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 - DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400 - [] dequeue_signal+0x8e/0x170 - [] get_signal_to_deliver+0x98/0x390 - [] do_notify_resume+0xad/0x7d0 - [] int_signal+0x12/0x17 - [] 0xffffffffffffffff - -The single most valuable information in this report is the RIP (or EIP on 32- -bit) value. This will help us pinpoint exactly which instruction that caused -the warning. - -If your kernel was compiled with ``CONFIG_DEBUG_INFO=y``, then all we have to do -is give this address to the addr2line program, like this:: - - $ addr2line -e vmlinux -i ffffffff8104ede8 - arch/x86/include/asm/string_64.h:12 - include/asm-generic/siginfo.h:287 - kernel/signal.c:380 - kernel/signal.c:410 - -The "``-e vmlinux``" tells addr2line which file to look in. **IMPORTANT:** -This must be the vmlinux of the kernel that produced the warning in the -first place! If not, the line number information will almost certainly be -wrong. - -The "``-i``" tells addr2line to also print the line numbers of inlined -functions. In this case, the flag was very important, because otherwise, -it would only have printed the first line, which is just a call to -``memcpy()``, which could be called from a thousand places in the kernel, and -is therefore not very useful. These inlined functions would not show up in -the stack trace above, simply because the kernel doesn't load the extra -debugging information. This technique can of course be used with ordinary -kernel oopses as well. - -In this case, it's the caller of ``memcpy()`` that is interesting, and it can be -found in ``include/asm-generic/siginfo.h``, line 287:: - - 281 static inline void copy_siginfo(struct siginfo *to, struct siginfo *from) - 282 { - 283 if (from->si_code < 0) - 284 memcpy(to, from, sizeof(*to)); - 285 else - 286 /* _sigchld is currently the largest know union member */ - 287 memcpy(to, from, __ARCH_SI_PREAMBLE_SIZE + sizeof(from->_sifields._sigchld)); - 288 } - -Since this was a read (kmemcheck usually warns about reads only, though it can -warn about writes to unallocated or freed memory as well), it was probably the -"from" argument which contained some uninitialized bytes. Following the chain -of calls, we move upwards to see where "from" was allocated or initialized, -``kernel/signal.c``, line 380:: - - 359 static void collect_signal(int sig, struct sigpending *list, siginfo_t *info) - 360 { - ... - 367 list_for_each_entry(q, &list->list, list) { - 368 if (q->info.si_signo == sig) { - 369 if (first) - 370 goto still_pending; - 371 first = q; - ... - 377 if (first) { - 378 still_pending: - 379 list_del_init(&first->list); - 380 copy_siginfo(info, &first->info); - 381 __sigqueue_free(first); - ... - 392 } - 393 } - -Here, it is ``&first->info`` that is being passed on to ``copy_siginfo()``. The -variable ``first`` was found on a list -- passed in as the second argument to -``collect_signal()``. We continue our journey through the stack, to figure out -where the item on "list" was allocated or initialized. We move to line 410:: - - 395 static int __dequeue_signal(struct sigpending *pending, sigset_t *mask, - 396 siginfo_t *info) - 397 { - ... - 410 collect_signal(sig, pending, info); - ... - 414 } - -Now we need to follow the ``pending`` pointer, since that is being passed on to -``collect_signal()`` as ``list``. At this point, we've run out of lines from the -"addr2line" output. Not to worry, we just paste the next addresses from the -kmemcheck stack dump, i.e.:: - - [] dequeue_signal+0x8e/0x170 - [] get_signal_to_deliver+0x98/0x390 - [] do_notify_resume+0xad/0x7d0 - [] int_signal+0x12/0x17 - - $ addr2line -e vmlinux -i ffffffff8104f04e ffffffff81050bd8 \ - ffffffff8100b87d ffffffff8100c7b5 - kernel/signal.c:446 - kernel/signal.c:1806 - arch/x86/kernel/signal.c:805 - arch/x86/kernel/signal.c:871 - arch/x86/kernel/entry_64.S:694 - -Remember that since these addresses were found on the stack and not as the -RIP value, they actually point to the _next_ instruction (they are return -addresses). This becomes obvious when we look at the code for line 446:: - - 422 int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info) - 423 { - ... - 431 signr = __dequeue_signal(&tsk->signal->shared_pending, - 432 mask, info); - 433 /* - 434 * itimer signal ? - 435 * - 436 * itimers are process shared and we restart periodic - 437 * itimers in the signal delivery path to prevent DoS - 438 * attacks in the high resolution timer case. This is - 439 * compliant with the old way of self restarting - 440 * itimers, as the SIGALRM is a legacy signal and only - 441 * queued once. Changing the restart behaviour to - 442 * restart the timer in the signal dequeue path is - 443 * reducing the timer noise on heavy loaded !highres - 444 * systems too. - 445 */ - 446 if (unlikely(signr == SIGALRM)) { - ... - 489 } - -So instead of looking at 446, we should be looking at 431, which is the line -that executes just before 446. Here we see that what we are looking for is -``&tsk->signal->shared_pending``. - -Our next task is now to figure out which function that puts items on this -``shared_pending`` list. A crude, but efficient tool, is ``git grep``:: - - $ git grep -n 'shared_pending' kernel/ - ... - kernel/signal.c:828: pending = group ? &t->signal->shared_pending : &t->pending; - kernel/signal.c:1339: pending = group ? &t->signal->shared_pending : &t->pending; - ... - -There were more results, but none of them were related to list operations, -and these were the only assignments. We inspect the line numbers more closely -and find that this is indeed where items are being added to the list:: - - 816 static int send_signal(int sig, struct siginfo *info, struct task_struct *t, - 817 int group) - 818 { - ... - 828 pending = group ? &t->signal->shared_pending : &t->pending; - ... - 851 q = __sigqueue_alloc(t, GFP_ATOMIC, (sig < SIGRTMIN && - 852 (is_si_special(info) || - 853 info->si_code >= 0))); - 854 if (q) { - 855 list_add_tail(&q->list, &pending->list); - ... - 890 } - -and:: - - 1309 int send_sigqueue(struct sigqueue *q, struct task_struct *t, int group) - 1310 { - .... - 1339 pending = group ? &t->signal->shared_pending : &t->pending; - 1340 list_add_tail(&q->list, &pending->list); - .... - 1347 } - -In the first case, the list element we are looking for, ``q``, is being -returned from the function ``__sigqueue_alloc()``, which looks like an -allocation function. Let's take a look at it:: - - 187 static struct sigqueue *__sigqueue_alloc(struct task_struct *t, gfp_t flags, - 188 int override_rlimit) - 189 { - 190 struct sigqueue *q = NULL; - 191 struct user_struct *user; - 192 - 193 /* - 194 * We won't get problems with the target's UID changing under us - 195 * because changing it requires RCU be used, and if t != current, the - 196 * caller must be holding the RCU readlock (by way of a spinlock) and - 197 * we use RCU protection here - 198 */ - 199 user = get_uid(__task_cred(t)->user); - 200 atomic_inc(&user->sigpending); - 201 if (override_rlimit || - 202 atomic_read(&user->sigpending) <= - 203 t->signal->rlim[RLIMIT_SIGPENDING].rlim_cur) - 204 q = kmem_cache_alloc(sigqueue_cachep, flags); - 205 if (unlikely(q == NULL)) { - 206 atomic_dec(&user->sigpending); - 207 free_uid(user); - 208 } else { - 209 INIT_LIST_HEAD(&q->list); - 210 q->flags = 0; - 211 q->user = user; - 212 } - 213 - 214 return q; - 215 } - -We see that this function initializes ``q->list``, ``q->flags``, and -``q->user``. It seems that now is the time to look at the definition of -``struct sigqueue``, e.g.:: - - 14 struct sigqueue { - 15 struct list_head list; - 16 int flags; - 17 siginfo_t info; - 18 struct user_struct *user; - 19 }; - -And, you might remember, it was a ``memcpy()`` on ``&first->info`` that -caused the warning, so this makes perfect sense. It also seems reasonable -to assume that it is the caller of ``__sigqueue_alloc()`` that has the -responsibility of filling out (initializing) this member. - -But just which fields of the struct were uninitialized? Let's look at -kmemcheck's report again:: - - WARNING: kmemcheck: Caught 32-bit read from uninitialized memory (ffff88003e4a2024) - 80000000000000000000000000000000000000000088ffff0000000000000000 - i i i i u u u u i i i i i i i i u u u u u u u u u u u u u u u u - ^ - -These first two lines are the memory dump of the memory object itself, and -the shadow bytemap, respectively. The memory object itself is in this case -``&first->info``. Just beware that the start of this dump is NOT the start -of the object itself! The position of the caret (^) corresponds with the -address of the read (ffff88003e4a2024). - -The shadow bytemap dump legend is as follows: - -- i: initialized -- u: uninitialized -- a: unallocated (memory has been allocated by the slab layer, but has not - yet been handed off to anybody) -- f: freed (memory has been allocated by the slab layer, but has been freed - by the previous owner) - -In order to figure out where (relative to the start of the object) the -uninitialized memory was located, we have to look at the disassembly. For -that, we'll need the RIP address again:: - - RIP: 0010:[] [] __dequeue_signal+0xc8/0x190 - - $ objdump -d --no-show-raw-insn vmlinux | grep -C 8 ffffffff8104ede8: - ffffffff8104edc8: mov %r8,0x8(%r8) - ffffffff8104edcc: test %r10d,%r10d - ffffffff8104edcf: js ffffffff8104ee88 <__dequeue_signal+0x168> - ffffffff8104edd5: mov %rax,%rdx - ffffffff8104edd8: mov $0xc,%ecx - ffffffff8104eddd: mov %r13,%rdi - ffffffff8104ede0: mov $0x30,%eax - ffffffff8104ede5: mov %rdx,%rsi - ffffffff8104ede8: rep movsl %ds:(%rsi),%es:(%rdi) - ffffffff8104edea: test $0x2,%al - ffffffff8104edec: je ffffffff8104edf0 <__dequeue_signal+0xd0> - ffffffff8104edee: movsw %ds:(%rsi),%es:(%rdi) - ffffffff8104edf0: test $0x1,%al - ffffffff8104edf2: je ffffffff8104edf5 <__dequeue_signal+0xd5> - ffffffff8104edf4: movsb %ds:(%rsi),%es:(%rdi) - ffffffff8104edf5: mov %r8,%rdi - ffffffff8104edf8: callq ffffffff8104de60 <__sigqueue_free> - -As expected, it's the "``rep movsl``" instruction from the ``memcpy()`` -that causes the warning. We know about ``REP MOVSL`` that it uses the register -``RCX`` to count the number of remaining iterations. By taking a look at the -register dump again (from the kmemcheck report), we can figure out how many -bytes were left to copy:: - - RAX: 0000000000000030 RBX: ffff88003d4ea968 RCX: 0000000000000009 - -By looking at the disassembly, we also see that ``%ecx`` is being loaded -with the value ``$0xc`` just before (ffffffff8104edd8), so we are very -lucky. Keep in mind that this is the number of iterations, not bytes. And -since this is a "long" operation, we need to multiply by 4 to get the -number of bytes. So this means that the uninitialized value was encountered -at 4 * (0xc - 0x9) = 12 bytes from the start of the object. - -We can now try to figure out which field of the "``struct siginfo``" that -was not initialized. This is the beginning of the struct:: - - 40 typedef struct siginfo { - 41 int si_signo; - 42 int si_errno; - 43 int si_code; - 44 - 45 union { - .. - 92 } _sifields; - 93 } siginfo_t; - -On 64-bit, the int is 4 bytes long, so it must the union member that has -not been initialized. We can verify this using gdb:: - - $ gdb vmlinux - ... - (gdb) p &((struct siginfo *) 0)->_sifields - $1 = (union {...} *) 0x10 - -Actually, it seems that the union member is located at offset 0x10 -- which -means that gcc has inserted 4 bytes of padding between the members ``si_code`` -and ``_sifields``. We can now get a fuller picture of the memory dump:: - - _----------------------------=> si_code - / _--------------------=> (padding) - | / _------------=> _sifields(._kill._pid) - | | / _----=> _sifields(._kill._uid) - | | | / - -------|-------|-------|-------| - 80000000000000000000000000000000000000000088ffff0000000000000000 - i i i i u u u u i i i i i i i i u u u u u u u u u u u u u u u u - -This allows us to realize another important fact: ``si_code`` contains the -value 0x80. Remember that x86 is little endian, so the first 4 bytes -"80000000" are really the number 0x00000080. With a bit of research, we -find that this is actually the constant ``SI_KERNEL`` defined in -``include/asm-generic/siginfo.h``:: - - 144 #define SI_KERNEL 0x80 /* sent by the kernel from somewhere */ - -This macro is used in exactly one place in the x86 kernel: In ``send_signal()`` -in ``kernel/signal.c``:: - - 816 static int send_signal(int sig, struct siginfo *info, struct task_struct *t, - 817 int group) - 818 { - ... - 828 pending = group ? &t->signal->shared_pending : &t->pending; - ... - 851 q = __sigqueue_alloc(t, GFP_ATOMIC, (sig < SIGRTMIN && - 852 (is_si_special(info) || - 853 info->si_code >= 0))); - 854 if (q) { - 855 list_add_tail(&q->list, &pending->list); - 856 switch ((unsigned long) info) { - ... - 865 case (unsigned long) SEND_SIG_PRIV: - 866 q->info.si_signo = sig; - 867 q->info.si_errno = 0; - 868 q->info.si_code = SI_KERNEL; - 869 q->info.si_pid = 0; - 870 q->info.si_uid = 0; - 871 break; - ... - 890 } - -Not only does this match with the ``.si_code`` member, it also matches the place -we found earlier when looking for where siginfo_t objects are enqueued on the -``shared_pending`` list. - -So to sum up: It seems that it is the padding introduced by the compiler -between two struct fields that is uninitialized, and this gets reported when -we do a ``memcpy()`` on the struct. This means that we have identified a false -positive warning. - -Normally, kmemcheck will not report uninitialized accesses in ``memcpy()`` calls -when both the source and destination addresses are tracked. (Instead, we copy -the shadow bytemap as well). In this case, the destination address clearly -was not tracked. We can dig a little deeper into the stack trace from above:: - - arch/x86/kernel/signal.c:805 - arch/x86/kernel/signal.c:871 - arch/x86/kernel/entry_64.S:694 - -And we clearly see that the destination siginfo object is located on the -stack:: - - 782 static void do_signal(struct pt_regs *regs) - 783 { - 784 struct k_sigaction ka; - 785 siginfo_t info; - ... - 804 signr = get_signal_to_deliver(&info, &ka, regs, NULL); - ... - 854 } - -And this ``&info`` is what eventually gets passed to ``copy_siginfo()`` as the -destination argument. - -Now, even though we didn't find an actual error here, the example is still a -good one, because it shows how one would go about to find out what the report -was all about. - - -Annotating false positives -~~~~~~~~~~~~~~~~~~~~~~~~~~ - -There are a few different ways to make annotations in the source code that -will keep kmemcheck from checking and reporting certain allocations. Here -they are: - -- ``__GFP_NOTRACK_FALSE_POSITIVE`` - This flag can be passed to ``kmalloc()`` or ``kmem_cache_alloc()`` - (therefore also to other functions that end up calling one of - these) to indicate that the allocation should not be tracked - because it would lead to a false positive report. This is a "big - hammer" way of silencing kmemcheck; after all, even if the false - positive pertains to particular field in a struct, for example, we - will now lose the ability to find (real) errors in other parts of - the same struct. - - Example:: - - /* No warnings will ever trigger on accessing any part of x */ - x = kmalloc(sizeof *x, GFP_KERNEL | __GFP_NOTRACK_FALSE_POSITIVE); - -- ``kmemcheck_bitfield_begin(name)``/``kmemcheck_bitfield_end(name)`` and - ``kmemcheck_annotate_bitfield(ptr, name)`` - The first two of these three macros can be used inside struct - definitions to signal, respectively, the beginning and end of a - bitfield. Additionally, this will assign the bitfield a name, which - is given as an argument to the macros. - - Having used these markers, one can later use - kmemcheck_annotate_bitfield() at the point of allocation, to indicate - which parts of the allocation is part of a bitfield. - - Example:: - - struct foo { - int x; - - kmemcheck_bitfield_begin(flags); - int flag_a:1; - int flag_b:1; - kmemcheck_bitfield_end(flags); - - int y; - }; - - struct foo *x = kmalloc(sizeof *x); - - /* No warnings will trigger on accessing the bitfield of x */ - kmemcheck_annotate_bitfield(x, flags); - - Note that ``kmemcheck_annotate_bitfield()`` can be used even before the - return value of ``kmalloc()`` is checked -- in other words, passing NULL - as the first argument is legal (and will do nothing). - - -Reporting errors ----------------- - -As we have seen, kmemcheck will produce false positive reports. Therefore, it -is not very wise to blindly post kmemcheck warnings to mailing lists and -maintainers. Instead, I encourage maintainers and developers to find errors -in their own code. If you get a warning, you can try to work around it, try -to figure out if it's a real error or not, or simply ignore it. Most -developers know their own code and will quickly and efficiently determine the -root cause of a kmemcheck report. This is therefore also the most efficient -way to work with kmemcheck. - -That said, we (the kmemcheck maintainers) will always be on the lookout for -false positives that we can annotate and silence. So whatever you find, -please drop us a note privately! Kernel configs and steps to reproduce (if -available) are of course a great help too. - -Happy hacking! - - -Technical description ---------------------- - -kmemcheck works by marking memory pages non-present. This means that whenever -somebody attempts to access the page, a page fault is generated. The page -fault handler notices that the page was in fact only hidden, and so it calls -on the kmemcheck code to make further investigations. - -When the investigations are completed, kmemcheck "shows" the page by marking -it present (as it would be under normal circumstances). This way, the -interrupted code can continue as usual. - -But after the instruction has been executed, we should hide the page again, so -that we can catch the next access too! Now kmemcheck makes use of a debugging -feature of the processor, namely single-stepping. When the processor has -finished the one instruction that generated the memory access, a debug -exception is raised. From here, we simply hide the page again and continue -execution, this time with the single-stepping feature turned off. - -kmemcheck requires some assistance from the memory allocator in order to work. -The memory allocator needs to - - 1. Tell kmemcheck about newly allocated pages and pages that are about to - be freed. This allows kmemcheck to set up and tear down the shadow memory - for the pages in question. The shadow memory stores the status of each - byte in the allocation proper, e.g. whether it is initialized or - uninitialized. - - 2. Tell kmemcheck which parts of memory should be marked uninitialized. - There are actually a few more states, such as "not yet allocated" and - "recently freed". - -If a slab cache is set up using the SLAB_NOTRACK flag, it will never return -memory that can take page faults because of kmemcheck. - -If a slab cache is NOT set up using the SLAB_NOTRACK flag, callers can still -request memory with the __GFP_NOTRACK or __GFP_NOTRACK_FALSE_POSITIVE flags. -This does not prevent the page faults from occurring, however, but marks the -object in question as being initialized so that no warnings will ever be -produced for this object. - -Currently, the SLAB and SLUB allocators are supported by kmemcheck. diff --git a/MAINTAINERS b/MAINTAINERS index 7e9c887ad951..ac814d3dd1c1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7688,16 +7688,6 @@ F: include/linux/kdb.h F: include/linux/kgdb.h F: kernel/debug/ -KMEMCHECK -M: Vegard Nossum -M: Pekka Enberg -S: Maintained -F: Documentation/dev-tools/kmemcheck.rst -F: arch/x86/include/asm/kmemcheck.h -F: arch/x86/mm/kmemcheck/ -F: include/linux/kmemcheck.h -F: mm/kmemcheck.c - KMEMLEAK M: Catalin Marinas S: Maintained diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index f08977d82ca0..cb678192da4a 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -112,7 +112,6 @@ config X86 select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_KASAN if X86_64 && SPARSEMEM_VMEMMAP select HAVE_ARCH_KGDB - select HAVE_ARCH_KMEMCHECK select HAVE_ARCH_MMAP_RND_BITS if MMU select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT select HAVE_ARCH_COMPAT_MMAP_BASES if MMU && COMPAT @@ -1430,7 +1429,7 @@ config ARCH_DMA_ADDR_T_64BIT config X86_DIRECT_GBPAGES def_bool y - depends on X86_64 && !DEBUG_PAGEALLOC && !KMEMCHECK + depends on X86_64 && !DEBUG_PAGEALLOC ---help--- Certain kernel features effectively disable kernel linear 1 GB mappings (even if the CPU otherwise diff --git a/arch/x86/include/asm/kmemcheck.h b/arch/x86/include/asm/kmemcheck.h index 945a0337fbcf..ea32a7d3cf1b 100644 --- a/arch/x86/include/asm/kmemcheck.h +++ b/arch/x86/include/asm/kmemcheck.h @@ -1,43 +1 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef ASM_X86_KMEMCHECK_H -#define ASM_X86_KMEMCHECK_H - -#include -#include - -#ifdef CONFIG_KMEMCHECK -bool kmemcheck_active(struct pt_regs *regs); - -void kmemcheck_show(struct pt_regs *regs); -void kmemcheck_hide(struct pt_regs *regs); - -bool kmemcheck_fault(struct pt_regs *regs, - unsigned long address, unsigned long error_code); -bool kmemcheck_trap(struct pt_regs *regs); -#else -static inline bool kmemcheck_active(struct pt_regs *regs) -{ - return false; -} - -static inline void kmemcheck_show(struct pt_regs *regs) -{ -} - -static inline void kmemcheck_hide(struct pt_regs *regs) -{ -} - -static inline bool kmemcheck_fault(struct pt_regs *regs, - unsigned long address, unsigned long error_code) -{ - return false; -} - -static inline bool kmemcheck_trap(struct pt_regs *regs) -{ - return false; -} -#endif /* CONFIG_KMEMCHECK */ - -#endif diff --git a/arch/x86/include/asm/string_32.h b/arch/x86/include/asm/string_32.h index 076502241eae..55d392c6bd29 100644 --- a/arch/x86/include/asm/string_32.h +++ b/arch/x86/include/asm/string_32.h @@ -179,8 +179,6 @@ static inline void *__memcpy3d(void *to, const void *from, size_t len) * No 3D Now! */ -#ifndef CONFIG_KMEMCHECK - #if (__GNUC__ >= 4) #define memcpy(t, f, n) __builtin_memcpy(t, f, n) #else @@ -189,13 +187,6 @@ static inline void *__memcpy3d(void *to, const void *from, size_t len) ? __constant_memcpy((t), (f), (n)) \ : __memcpy((t), (f), (n))) #endif -#else -/* - * kmemcheck becomes very happy if we use the REP instructions unconditionally, - * because it means that we know both memory operands in advance. - */ -#define memcpy(t, f, n) __memcpy((t), (f), (n)) -#endif #endif #endif /* !CONFIG_FORTIFY_SOURCE */ diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h index 0b1b4445f4c5..533f74c300c2 100644 --- a/arch/x86/include/asm/string_64.h +++ b/arch/x86/include/asm/string_64.h @@ -33,7 +33,6 @@ extern void *memcpy(void *to, const void *from, size_t len); extern void *__memcpy(void *to, const void *from, size_t len); #ifndef CONFIG_FORTIFY_SOURCE -#ifndef CONFIG_KMEMCHECK #if (__GNUC__ == 4 && __GNUC_MINOR__ < 3) || __GNUC__ < 4 #define memcpy(dst, src, len) \ ({ \ @@ -46,13 +45,6 @@ extern void *__memcpy(void *to, const void *from, size_t len); __ret; \ }) #endif -#else -/* - * kmemcheck becomes very happy if we use the REP instructions unconditionally, - * because it means that we know both memory operands in advance. - */ -#define memcpy(dst, src, len) __inline_memcpy((dst), (src), (len)) -#endif #endif /* !CONFIG_FORTIFY_SOURCE */ #define __HAVE_ARCH_MEMSET diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index b720dacac051..b1af22073e28 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -187,21 +187,6 @@ static void early_init_intel(struct cpuinfo_x86 *c) if (c->x86 == 6 && c->x86_model < 15) clear_cpu_cap(c, X86_FEATURE_PAT); -#ifdef CONFIG_KMEMCHECK - /* - * P4s have a "fast strings" feature which causes single- - * stepping REP instructions to only generate a #DB on - * cache-line boundaries. - * - * Ingo Molnar reported a Pentium D (model 6) and a Xeon - * (model 2) with the same problem. - */ - if (c->x86 == 15) - if (msr_clear_bit(MSR_IA32_MISC_ENABLE, - MSR_IA32_MISC_ENABLE_FAST_STRING_BIT) > 0) - pr_info("kmemcheck: Disabling fast string operations\n"); -#endif - /* * If fast string is not enabled in IA32_MISC_ENABLE for any reason, * clear the fast string and enhanced fast string CPU capabilities. diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile index 7ba7f3d7f477..8e13b8cc6bed 100644 --- a/arch/x86/mm/Makefile +++ b/arch/x86/mm/Makefile @@ -29,8 +29,6 @@ obj-$(CONFIG_X86_PTDUMP) += debug_pagetables.o obj-$(CONFIG_HIGHMEM) += highmem_32.o -obj-$(CONFIG_KMEMCHECK) += kmemcheck/ - KASAN_SANITIZE_kasan_init_$(BITS).o := n obj-$(CONFIG_KASAN) += kasan_init_$(BITS).o diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index ef94620ceb8a..6fdf91ef130a 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -163,12 +163,11 @@ static int page_size_mask; static void __init probe_page_size_mask(void) { /* - * For CONFIG_KMEMCHECK or pagealloc debugging, identity mapping will - * use small pages. + * For pagealloc debugging, identity mapping will use small pages. * This will simplify cpa(), which otherwise needs to support splitting * large pages into small in interrupt context, etc. */ - if (boot_cpu_has(X86_FEATURE_PSE) && !debug_pagealloc_enabled() && !IS_ENABLED(CONFIG_KMEMCHECK)) + if (boot_cpu_has(X86_FEATURE_PSE) && !debug_pagealloc_enabled()) page_size_mask |= 1 << PG_LEVEL_2M; else direct_gbpages = 0; diff --git a/arch/x86/mm/kmemcheck/Makefile b/arch/x86/mm/kmemcheck/Makefile deleted file mode 100644 index 520b3bce4095..000000000000 --- a/arch/x86/mm/kmemcheck/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-y := error.o kmemcheck.o opcode.o pte.o selftest.o shadow.o diff --git a/arch/x86/mm/kmemcheck/error.c b/arch/x86/mm/kmemcheck/error.c index 872ec4159a68..cec594032515 100644 --- a/arch/x86/mm/kmemcheck/error.c +++ b/arch/x86/mm/kmemcheck/error.c @@ -1,228 +1 @@ // SPDX-License-Identifier: GPL-2.0 -#include -#include -#include -#include -#include -#include -#include -#include - -#include "error.h" -#include "shadow.h" - -enum kmemcheck_error_type { - KMEMCHECK_ERROR_INVALID_ACCESS, - KMEMCHECK_ERROR_BUG, -}; - -#define SHADOW_COPY_SIZE (1 << CONFIG_KMEMCHECK_SHADOW_COPY_SHIFT) - -struct kmemcheck_error { - enum kmemcheck_error_type type; - - union { - /* KMEMCHECK_ERROR_INVALID_ACCESS */ - struct { - /* Kind of access that caused the error */ - enum kmemcheck_shadow state; - /* Address and size of the erroneous read */ - unsigned long address; - unsigned int size; - }; - }; - - struct pt_regs regs; - struct stack_trace trace; - unsigned long trace_entries[32]; - - /* We compress it to a char. */ - unsigned char shadow_copy[SHADOW_COPY_SIZE]; - unsigned char memory_copy[SHADOW_COPY_SIZE]; -}; - -/* - * Create a ring queue of errors to output. We can't call printk() directly - * from the kmemcheck traps, since this may call the console drivers and - * result in a recursive fault. - */ -static struct kmemcheck_error error_fifo[CONFIG_KMEMCHECK_QUEUE_SIZE]; -static unsigned int error_count; -static unsigned int error_rd; -static unsigned int error_wr; -static unsigned int error_missed_count; - -static struct kmemcheck_error *error_next_wr(void) -{ - struct kmemcheck_error *e; - - if (error_count == ARRAY_SIZE(error_fifo)) { - ++error_missed_count; - return NULL; - } - - e = &error_fifo[error_wr]; - if (++error_wr == ARRAY_SIZE(error_fifo)) - error_wr = 0; - ++error_count; - return e; -} - -static struct kmemcheck_error *error_next_rd(void) -{ - struct kmemcheck_error *e; - - if (error_count == 0) - return NULL; - - e = &error_fifo[error_rd]; - if (++error_rd == ARRAY_SIZE(error_fifo)) - error_rd = 0; - --error_count; - return e; -} - -void kmemcheck_error_recall(void) -{ - static const char *desc[] = { - [KMEMCHECK_SHADOW_UNALLOCATED] = "unallocated", - [KMEMCHECK_SHADOW_UNINITIALIZED] = "uninitialized", - [KMEMCHECK_SHADOW_INITIALIZED] = "initialized", - [KMEMCHECK_SHADOW_FREED] = "freed", - }; - - static const char short_desc[] = { - [KMEMCHECK_SHADOW_UNALLOCATED] = 'a', - [KMEMCHECK_SHADOW_UNINITIALIZED] = 'u', - [KMEMCHECK_SHADOW_INITIALIZED] = 'i', - [KMEMCHECK_SHADOW_FREED] = 'f', - }; - - struct kmemcheck_error *e; - unsigned int i; - - e = error_next_rd(); - if (!e) - return; - - switch (e->type) { - case KMEMCHECK_ERROR_INVALID_ACCESS: - printk(KERN_WARNING "WARNING: kmemcheck: Caught %d-bit read from %s memory (%p)\n", - 8 * e->size, e->state < ARRAY_SIZE(desc) ? - desc[e->state] : "(invalid shadow state)", - (void *) e->address); - - printk(KERN_WARNING); - for (i = 0; i < SHADOW_COPY_SIZE; ++i) - printk(KERN_CONT "%02x", e->memory_copy[i]); - printk(KERN_CONT "\n"); - - printk(KERN_WARNING); - for (i = 0; i < SHADOW_COPY_SIZE; ++i) { - if (e->shadow_copy[i] < ARRAY_SIZE(short_desc)) - printk(KERN_CONT " %c", short_desc[e->shadow_copy[i]]); - else - printk(KERN_CONT " ?"); - } - printk(KERN_CONT "\n"); - printk(KERN_WARNING "%*c\n", 2 + 2 - * (int) (e->address & (SHADOW_COPY_SIZE - 1)), '^'); - break; - case KMEMCHECK_ERROR_BUG: - printk(KERN_EMERG "ERROR: kmemcheck: Fatal error\n"); - break; - } - - __show_regs(&e->regs, 1); - print_stack_trace(&e->trace, 0); -} - -static void do_wakeup(unsigned long data) -{ - while (error_count > 0) - kmemcheck_error_recall(); - - if (error_missed_count > 0) { - printk(KERN_WARNING "kmemcheck: Lost %d error reports because " - "the queue was too small\n", error_missed_count); - error_missed_count = 0; - } -} - -static DECLARE_TASKLET(kmemcheck_tasklet, &do_wakeup, 0); - -/* - * Save the context of an error report. - */ -void kmemcheck_error_save(enum kmemcheck_shadow state, - unsigned long address, unsigned int size, struct pt_regs *regs) -{ - static unsigned long prev_ip; - - struct kmemcheck_error *e; - void *shadow_copy; - void *memory_copy; - - /* Don't report several adjacent errors from the same EIP. */ - if (regs->ip == prev_ip) - return; - prev_ip = regs->ip; - - e = error_next_wr(); - if (!e) - return; - - e->type = KMEMCHECK_ERROR_INVALID_ACCESS; - - e->state = state; - e->address = address; - e->size = size; - - /* Save regs */ - memcpy(&e->regs, regs, sizeof(*regs)); - - /* Save stack trace */ - e->trace.nr_entries = 0; - e->trace.entries = e->trace_entries; - e->trace.max_entries = ARRAY_SIZE(e->trace_entries); - e->trace.skip = 0; - save_stack_trace_regs(regs, &e->trace); - - /* Round address down to nearest 16 bytes */ - shadow_copy = kmemcheck_shadow_lookup(address - & ~(SHADOW_COPY_SIZE - 1)); - BUG_ON(!shadow_copy); - - memcpy(e->shadow_copy, shadow_copy, SHADOW_COPY_SIZE); - - kmemcheck_show_addr(address); - memory_copy = (void *) (address & ~(SHADOW_COPY_SIZE - 1)); - memcpy(e->memory_copy, memory_copy, SHADOW_COPY_SIZE); - kmemcheck_hide_addr(address); - - tasklet_hi_schedule_first(&kmemcheck_tasklet); -} - -/* - * Save the context of a kmemcheck bug. - */ -void kmemcheck_error_save_bug(struct pt_regs *regs) -{ - struct kmemcheck_error *e; - - e = error_next_wr(); - if (!e) - return; - - e->type = KMEMCHECK_ERROR_BUG; - - memcpy(&e->regs, regs, sizeof(*regs)); - - e->trace.nr_entries = 0; - e->trace.entries = e->trace_entries; - e->trace.max_entries = ARRAY_SIZE(e->trace_entries); - e->trace.skip = 1; - save_stack_trace(&e->trace); - - tasklet_hi_schedule_first(&kmemcheck_tasklet); -} diff --git a/arch/x86/mm/kmemcheck/error.h b/arch/x86/mm/kmemcheck/error.h index 39f80d7a874d..ea32a7d3cf1b 100644 --- a/arch/x86/mm/kmemcheck/error.h +++ b/arch/x86/mm/kmemcheck/error.h @@ -1,16 +1 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef ARCH__X86__MM__KMEMCHECK__ERROR_H -#define ARCH__X86__MM__KMEMCHECK__ERROR_H - -#include - -#include "shadow.h" - -void kmemcheck_error_save(enum kmemcheck_shadow state, - unsigned long address, unsigned int size, struct pt_regs *regs); - -void kmemcheck_error_save_bug(struct pt_regs *regs); - -void kmemcheck_error_recall(void); - -#endif diff --git a/arch/x86/mm/kmemcheck/kmemcheck.c b/arch/x86/mm/kmemcheck/kmemcheck.c deleted file mode 100644 index 4515bae36bbe..000000000000 --- a/arch/x86/mm/kmemcheck/kmemcheck.c +++ /dev/null @@ -1,658 +0,0 @@ -/** - * kmemcheck - a heavyweight memory checker for the linux kernel - * Copyright (C) 2007, 2008 Vegard Nossum - * (With a lot of help from Ingo Molnar and Pekka Enberg.) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License (version 2) as - * published by the Free Software Foundation. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include "error.h" -#include "opcode.h" -#include "pte.h" -#include "selftest.h" -#include "shadow.h" - - -#ifdef CONFIG_KMEMCHECK_DISABLED_BY_DEFAULT -# define KMEMCHECK_ENABLED 0 -#endif - -#ifdef CONFIG_KMEMCHECK_ENABLED_BY_DEFAULT -# define KMEMCHECK_ENABLED 1 -#endif - -#ifdef CONFIG_KMEMCHECK_ONESHOT_BY_DEFAULT -# define KMEMCHECK_ENABLED 2 -#endif - -int kmemcheck_enabled = KMEMCHECK_ENABLED; - -int __init kmemcheck_init(void) -{ -#ifdef CONFIG_SMP - /* - * Limit SMP to use a single CPU. We rely on the fact that this code - * runs before SMP is set up. - */ - if (setup_max_cpus > 1) { - printk(KERN_INFO - "kmemcheck: Limiting number of CPUs to 1.\n"); - setup_max_cpus = 1; - } -#endif - - if (!kmemcheck_selftest()) { - printk(KERN_INFO "kmemcheck: self-tests failed; disabling\n"); - kmemcheck_enabled = 0; - return -EINVAL; - } - - printk(KERN_INFO "kmemcheck: Initialized\n"); - return 0; -} - -early_initcall(kmemcheck_init); - -/* - * We need to parse the kmemcheck= option before any memory is allocated. - */ -static int __init param_kmemcheck(char *str) -{ - int val; - int ret; - - if (!str) - return -EINVAL; - - ret = kstrtoint(str, 0, &val); - if (ret) - return ret; - kmemcheck_enabled = val; - return 0; -} - -early_param("kmemcheck", param_kmemcheck); - -int kmemcheck_show_addr(unsigned long address) -{ - pte_t *pte; - - pte = kmemcheck_pte_lookup(address); - if (!pte) - return 0; - - set_pte(pte, __pte(pte_val(*pte) | _PAGE_PRESENT)); - __flush_tlb_one(address); - return 1; -} - -int kmemcheck_hide_addr(unsigned long address) -{ - pte_t *pte; - - pte = kmemcheck_pte_lookup(address); - if (!pte) - return 0; - - set_pte(pte, __pte(pte_val(*pte) & ~_PAGE_PRESENT)); - __flush_tlb_one(address); - return 1; -} - -struct kmemcheck_context { - bool busy; - int balance; - - /* - * There can be at most two memory operands to an instruction, but - * each address can cross a page boundary -- so we may need up to - * four addresses that must be hidden/revealed for each fault. - */ - unsigned long addr[4]; - unsigned long n_addrs; - unsigned long flags; - - /* Data size of the instruction that caused a fault. */ - unsigned int size; -}; - -static DEFINE_PER_CPU(struct kmemcheck_context, kmemcheck_context); - -bool kmemcheck_active(struct pt_regs *regs) -{ - struct kmemcheck_context *data = this_cpu_ptr(&kmemcheck_context); - - return data->balance > 0; -} - -/* Save an address that needs to be shown/hidden */ -static void kmemcheck_save_addr(unsigned long addr) -{ - struct kmemcheck_context *data = this_cpu_ptr(&kmemcheck_context); - - BUG_ON(data->n_addrs >= ARRAY_SIZE(data->addr)); - data->addr[data->n_addrs++] = addr; -} - -static unsigned int kmemcheck_show_all(void) -{ - struct kmemcheck_context *data = this_cpu_ptr(&kmemcheck_context); - unsigned int i; - unsigned int n; - - n = 0; - for (i = 0; i < data->n_addrs; ++i) - n += kmemcheck_show_addr(data->addr[i]); - - return n; -} - -static unsigned int kmemcheck_hide_all(void) -{ - struct kmemcheck_context *data = this_cpu_ptr(&kmemcheck_context); - unsigned int i; - unsigned int n; - - n = 0; - for (i = 0; i < data->n_addrs; ++i) - n += kmemcheck_hide_addr(data->addr[i]); - - return n; -} - -/* - * Called from the #PF handler. - */ -void kmemcheck_show(struct pt_regs *regs) -{ - struct kmemcheck_context *data = this_cpu_ptr(&kmemcheck_context); - - BUG_ON(!irqs_disabled()); - - if (unlikely(data->balance != 0)) { - kmemcheck_show_all(); - kmemcheck_error_save_bug(regs); - data->balance = 0; - return; - } - - /* - * None of the addresses actually belonged to kmemcheck. Note that - * this is not an error. - */ - if (kmemcheck_show_all() == 0) - return; - - ++data->balance; - - /* - * The IF needs to be cleared as well, so that the faulting - * instruction can run "uninterrupted". Otherwise, we might take - * an interrupt and start executing that before we've had a chance - * to hide the page again. - * - * NOTE: In the rare case of multiple faults, we must not override - * the original flags: - */ - if (!(regs->flags & X86_EFLAGS_TF)) - data->flags = regs->flags; - - regs->flags |= X86_EFLAGS_TF; - regs->flags &= ~X86_EFLAGS_IF; -} - -/* - * Called from the #DB handler. - */ -void kmemcheck_hide(struct pt_regs *regs) -{ - struct kmemcheck_context *data = this_cpu_ptr(&kmemcheck_context); - int n; - - BUG_ON(!irqs_disabled()); - - if (unlikely(data->balance != 1)) { - kmemcheck_show_all(); - kmemcheck_error_save_bug(regs); - data->n_addrs = 0; - data->balance = 0; - - if (!(data->flags & X86_EFLAGS_TF)) - regs->flags &= ~X86_EFLAGS_TF; - if (data->flags & X86_EFLAGS_IF) - regs->flags |= X86_EFLAGS_IF; - return; - } - - if (kmemcheck_enabled) - n = kmemcheck_hide_all(); - else - n = kmemcheck_show_all(); - - if (n == 0) - return; - - --data->balance; - - data->n_addrs = 0; - - if (!(data->flags & X86_EFLAGS_TF)) - regs->flags &= ~X86_EFLAGS_TF; - if (data->flags & X86_EFLAGS_IF) - regs->flags |= X86_EFLAGS_IF; -} - -void kmemcheck_show_pages(struct page *p, unsigned int n) -{ - unsigned int i; - - for (i = 0; i < n; ++i) { - unsigned long address; - pte_t *pte; - unsigned int level; - - address = (unsigned long) page_address(&p[i]); - pte = lookup_address(address, &level); - BUG_ON(!pte); - BUG_ON(level != PG_LEVEL_4K); - - set_pte(pte, __pte(pte_val(*pte) | _PAGE_PRESENT)); - set_pte(pte, __pte(pte_val(*pte) & ~_PAGE_HIDDEN)); - __flush_tlb_one(address); - } -} - -bool kmemcheck_page_is_tracked(struct page *p) -{ - /* This will also check the "hidden" flag of the PTE. */ - return kmemcheck_pte_lookup((unsigned long) page_address(p)); -} - -void kmemcheck_hide_pages(struct page *p, unsigned int n) -{ - unsigned int i; - - for (i = 0; i < n; ++i) { - unsigned long address; - pte_t *pte; - unsigned int level; - - address = (unsigned long) page_address(&p[i]); - pte = lookup_address(address, &level); - BUG_ON(!pte); - BUG_ON(level != PG_LEVEL_4K); - - set_pte(pte, __pte(pte_val(*pte) & ~_PAGE_PRESENT)); - set_pte(pte, __pte(pte_val(*pte) | _PAGE_HIDDEN)); - __flush_tlb_one(address); - } -} - -/* Access may NOT cross page boundary */ -static void kmemcheck_read_strict(struct pt_regs *regs, - unsigned long addr, unsigned int size) -{ - void *shadow; - enum kmemcheck_shadow status; - - shadow = kmemcheck_shadow_lookup(addr); - if (!shadow) - return; - - kmemcheck_save_addr(addr); - status = kmemcheck_shadow_test(shadow, size); - if (status == KMEMCHECK_SHADOW_INITIALIZED) - return; - - if (kmemcheck_enabled) - kmemcheck_error_save(status, addr, size, regs); - - if (kmemcheck_enabled == 2) - kmemcheck_enabled = 0; - - /* Don't warn about it again. */ - kmemcheck_shadow_set(shadow, size); -} - -bool kmemcheck_is_obj_initialized(unsigned long addr, size_t size) -{ - enum kmemcheck_shadow status; - void *shadow; - - shadow = kmemcheck_shadow_lookup(addr); - if (!shadow) - return true; - - status = kmemcheck_shadow_test_all(shadow, size); - - return status == KMEMCHECK_SHADOW_INITIALIZED; -} - -/* Access may cross page boundary */ -static void kmemcheck_read(struct pt_regs *regs, - unsigned long addr, unsigned int size) -{ - unsigned long page = addr & PAGE_MASK; - unsigned long next_addr = addr + size - 1; - unsigned long next_page = next_addr & PAGE_MASK; - - if (likely(page == next_page)) { - kmemcheck_read_strict(regs, addr, size); - return; - } - - /* - * What we do is basically to split the access across the - * two pages and handle each part separately. Yes, this means - * that we may now see reads that are 3 + 5 bytes, for - * example (and if both are uninitialized, there will be two - * reports), but it makes the code a lot simpler. - */ - kmemcheck_read_strict(regs, addr, next_page - addr); - kmemcheck_read_strict(regs, next_page, next_addr - next_page); -} - -static void kmemcheck_write_strict(struct pt_regs *regs, - unsigned long addr, unsigned int size) -{ - void *shadow; - - shadow = kmemcheck_shadow_lookup(addr); - if (!shadow) - return; - - kmemcheck_save_addr(addr); - kmemcheck_shadow_set(shadow, size); -} - -static void kmemcheck_write(struct pt_regs *regs, - unsigned long addr, unsigned int size) -{ - unsigned long page = addr & PAGE_MASK; - unsigned long next_addr = addr + size - 1; - unsigned long next_page = next_addr & PAGE_MASK; - - if (likely(page == next_page)) { - kmemcheck_write_strict(regs, addr, size); - return; - } - - /* See comment in kmemcheck_read(). */ - kmemcheck_write_strict(regs, addr, next_page - addr); - kmemcheck_write_strict(regs, next_page, next_addr - next_page); -} - -/* - * Copying is hard. We have two addresses, each of which may be split across - * a page (and each page will have different shadow addresses). - */ -static void kmemcheck_copy(struct pt_regs *regs, - unsigned long src_addr, unsigned long dst_addr, unsigned int size) -{ - uint8_t shadow[8]; - enum kmemcheck_shadow status; - - unsigned long page; - unsigned long next_addr; - unsigned long next_page; - - uint8_t *x; - unsigned int i; - unsigned int n; - - BUG_ON(size > sizeof(shadow)); - - page = src_addr & PAGE_MASK; - next_addr = src_addr + size - 1; - next_page = next_addr & PAGE_MASK; - - if (likely(page == next_page)) { - /* Same page */ - x = kmemcheck_shadow_lookup(src_addr); - if (x) { - kmemcheck_save_addr(src_addr); - for (i = 0; i < size; ++i) - shadow[i] = x[i]; - } else { - for (i = 0; i < size; ++i) - shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; - } - } else { - n = next_page - src_addr; - BUG_ON(n > sizeof(shadow)); - - /* First page */ - x = kmemcheck_shadow_lookup(src_addr); - if (x) { - kmemcheck_save_addr(src_addr); - for (i = 0; i < n; ++i) - shadow[i] = x[i]; - } else { - /* Not tracked */ - for (i = 0; i < n; ++i) - shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; - } - - /* Second page */ - x = kmemcheck_shadow_lookup(next_page); - if (x) { - kmemcheck_save_addr(next_page); - for (i = n; i < size; ++i) - shadow[i] = x[i - n]; - } else { - /* Not tracked */ - for (i = n; i < size; ++i) - shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; - } - } - - page = dst_addr & PAGE_MASK; - next_addr = dst_addr + size - 1; - next_page = next_addr & PAGE_MASK; - - if (likely(page == next_page)) { - /* Same page */ - x = kmemcheck_shadow_lookup(dst_addr); - if (x) { - kmemcheck_save_addr(dst_addr); - for (i = 0; i < size; ++i) { - x[i] = shadow[i]; - shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; - } - } - } else { - n = next_page - dst_addr; - BUG_ON(n > sizeof(shadow)); - - /* First page */ - x = kmemcheck_shadow_lookup(dst_addr); - if (x) { - kmemcheck_save_addr(dst_addr); - for (i = 0; i < n; ++i) { - x[i] = shadow[i]; - shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; - } - } - - /* Second page */ - x = kmemcheck_shadow_lookup(next_page); - if (x) { - kmemcheck_save_addr(next_page); - for (i = n; i < size; ++i) { - x[i - n] = shadow[i]; - shadow[i] = KMEMCHECK_SHADOW_INITIALIZED; - } - } - } - - status = kmemcheck_shadow_test(shadow, size); - if (status == KMEMCHECK_SHADOW_INITIALIZED) - return; - - if (kmemcheck_enabled) - kmemcheck_error_save(status, src_addr, size, regs); - - if (kmemcheck_enabled == 2) - kmemcheck_enabled = 0; -} - -enum kmemcheck_method { - KMEMCHECK_READ, - KMEMCHECK_WRITE, -}; - -static void kmemcheck_access(struct pt_regs *regs, - unsigned long fallback_address, enum kmemcheck_method fallback_method) -{ - const uint8_t *insn; - const uint8_t *insn_primary; - unsigned int size; - - struct kmemcheck_context *data = this_cpu_ptr(&kmemcheck_context); - - /* Recursive fault -- ouch. */ - if (data->busy) { - kmemcheck_show_addr(fallback_address); - kmemcheck_error_save_bug(regs); - return; - } - - data->busy = true; - - insn = (const uint8_t *) regs->ip; - insn_primary = kmemcheck_opcode_get_primary(insn); - - kmemcheck_opcode_decode(insn, &size); - - switch (insn_primary[0]) { -#ifdef CONFIG_KMEMCHECK_BITOPS_OK - /* AND, OR, XOR */ - /* - * Unfortunately, these instructions have to be excluded from - * our regular checking since they access only some (and not - * all) bits. This clears out "bogus" bitfield-access warnings. - */ - case 0x80: - case 0x81: - case 0x82: - case 0x83: - switch ((insn_primary[1] >> 3) & 7) { - /* OR */ - case 1: - /* AND */ - case 4: - /* XOR */ - case 6: - kmemcheck_write(regs, fallback_address, size); - goto out; - - /* ADD */ - case 0: - /* ADC */ - case 2: - /* SBB */ - case 3: - /* SUB */ - case 5: - /* CMP */ - case 7: - break; - } - break; -#endif - - /* MOVS, MOVSB, MOVSW, MOVSD */ - case 0xa4: - case 0xa5: - /* - * These instructions are special because they take two - * addresses, but we only get one page fault. - */ - kmemcheck_copy(regs, regs->si, regs->di, size); - goto out; - - /* CMPS, CMPSB, CMPSW, CMPSD */ - case 0xa6: - case 0xa7: - kmemcheck_read(regs, regs->si, size); - kmemcheck_read(regs, regs->di, size); - goto out; - } - - /* - * If the opcode isn't special in any way, we use the data from the - * page fault handler to determine the address and type of memory - * access. - */ - switch (fallback_method) { - case KMEMCHECK_READ: - kmemcheck_read(regs, fallback_address, size); - goto out; - case KMEMCHECK_WRITE: - kmemcheck_write(regs, fallback_address, size); - goto out; - } - -out: - data->busy = false; -} - -bool kmemcheck_fault(struct pt_regs *regs, unsigned long address, - unsigned long error_code) -{ - pte_t *pte; - - /* - * XXX: Is it safe to assume that memory accesses from virtual 86 - * mode or non-kernel code segments will _never_ access kernel - * memory (e.g. tracked pages)? For now, we need this to avoid - * invoking kmemcheck for PnP BIOS calls. - */ - if (regs->flags & X86_VM_MASK) - return false; - if (regs->cs != __KERNEL_CS) - return false; - - pte = kmemcheck_pte_lookup(address); - if (!pte) - return false; - - WARN_ON_ONCE(in_nmi()); - - if (error_code & 2) - kmemcheck_access(regs, address, KMEMCHECK_WRITE); - else - kmemcheck_access(regs, address, KMEMCHECK_READ); - - kmemcheck_show(regs); - return true; -} - -bool kmemcheck_trap(struct pt_regs *regs) -{ - if (!kmemcheck_active(regs)) - return false; - - /* We're done. */ - kmemcheck_hide(regs); - return true; -} diff --git a/arch/x86/mm/kmemcheck/opcode.c b/arch/x86/mm/kmemcheck/opcode.c index df8109ddf7fe..cec594032515 100644 --- a/arch/x86/mm/kmemcheck/opcode.c +++ b/arch/x86/mm/kmemcheck/opcode.c @@ -1,107 +1 @@ // SPDX-License-Identifier: GPL-2.0 -#include - -#include "opcode.h" - -static bool opcode_is_prefix(uint8_t b) -{ - return - /* Group 1 */ - b == 0xf0 || b == 0xf2 || b == 0xf3 - /* Group 2 */ - || b == 0x2e || b == 0x36 || b == 0x3e || b == 0x26 - || b == 0x64 || b == 0x65 - /* Group 3 */ - || b == 0x66 - /* Group 4 */ - || b == 0x67; -} - -#ifdef CONFIG_X86_64 -static bool opcode_is_rex_prefix(uint8_t b) -{ - return (b & 0xf0) == 0x40; -} -#else -static bool opcode_is_rex_prefix(uint8_t b) -{ - return false; -} -#endif - -#define REX_W (1 << 3) - -/* - * This is a VERY crude opcode decoder. We only need to find the size of the - * load/store that caused our #PF and this should work for all the opcodes - * that we care about. Moreover, the ones who invented this instruction set - * should be shot. - */ -void kmemcheck_opcode_decode(const uint8_t *op, unsigned int *size) -{ - /* Default operand size */ - int operand_size_override = 4; - - /* prefixes */ - for (; opcode_is_prefix(*op); ++op) { - if (*op == 0x66) - operand_size_override = 2; - } - - /* REX prefix */ - if (opcode_is_rex_prefix(*op)) { - uint8_t rex = *op; - - ++op; - if (rex & REX_W) { - switch (*op) { - case 0x63: - *size = 4; - return; - case 0x0f: - ++op; - - switch (*op) { - case 0xb6: - case 0xbe: - *size = 1; - return; - case 0xb7: - case 0xbf: - *size = 2; - return; - } - - break; - } - - *size = 8; - return; - } - } - - /* escape opcode */ - if (*op == 0x0f) { - ++op; - - /* - * This is move with zero-extend and sign-extend, respectively; - * we don't have to think about 0xb6/0xbe, because this is - * already handled in the conditional below. - */ - if (*op == 0xb7 || *op == 0xbf) - operand_size_override = 2; - } - - *size = (*op & 1) ? operand_size_override : 1; -} - -const uint8_t *kmemcheck_opcode_get_primary(const uint8_t *op) -{ - /* skip prefixes */ - while (opcode_is_prefix(*op)) - ++op; - if (opcode_is_rex_prefix(*op)) - ++op; - return op; -} diff --git a/arch/x86/mm/kmemcheck/opcode.h b/arch/x86/mm/kmemcheck/opcode.h index 51a1ce94c24a..ea32a7d3cf1b 100644 --- a/arch/x86/mm/kmemcheck/opcode.h +++ b/arch/x86/mm/kmemcheck/opcode.h @@ -1,10 +1 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef ARCH__X86__MM__KMEMCHECK__OPCODE_H -#define ARCH__X86__MM__KMEMCHECK__OPCODE_H - -#include - -void kmemcheck_opcode_decode(const uint8_t *op, unsigned int *size); -const uint8_t *kmemcheck_opcode_get_primary(const uint8_t *op); - -#endif diff --git a/arch/x86/mm/kmemcheck/pte.c b/arch/x86/mm/kmemcheck/pte.c index 8a03be90272a..cec594032515 100644 --- a/arch/x86/mm/kmemcheck/pte.c +++ b/arch/x86/mm/kmemcheck/pte.c @@ -1,23 +1 @@ // SPDX-License-Identifier: GPL-2.0 -#include - -#include - -#include "pte.h" - -pte_t *kmemcheck_pte_lookup(unsigned long address) -{ - pte_t *pte; - unsigned int level; - - pte = lookup_address(address, &level); - if (!pte) - return NULL; - if (level != PG_LEVEL_4K) - return NULL; - if (!pte_hidden(*pte)) - return NULL; - - return pte; -} - diff --git a/arch/x86/mm/kmemcheck/pte.h b/arch/x86/mm/kmemcheck/pte.h index b595612382c2..ea32a7d3cf1b 100644 --- a/arch/x86/mm/kmemcheck/pte.h +++ b/arch/x86/mm/kmemcheck/pte.h @@ -1,11 +1 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef ARCH__X86__MM__KMEMCHECK__PTE_H -#define ARCH__X86__MM__KMEMCHECK__PTE_H - -#include - -#include - -pte_t *kmemcheck_pte_lookup(unsigned long address); - -#endif diff --git a/arch/x86/mm/kmemcheck/selftest.c b/arch/x86/mm/kmemcheck/selftest.c index 7ce0be1f99eb..cec594032515 100644 --- a/arch/x86/mm/kmemcheck/selftest.c +++ b/arch/x86/mm/kmemcheck/selftest.c @@ -1,71 +1 @@ // SPDX-License-Identifier: GPL-2.0 -#include -#include - -#include "opcode.h" -#include "selftest.h" - -struct selftest_opcode { - unsigned int expected_size; - const uint8_t *insn; - const char *desc; -}; - -static const struct selftest_opcode selftest_opcodes[] = { - /* REP MOVS */ - {1, "\xf3\xa4", "rep movsb , "}, - {4, "\xf3\xa5", "rep movsl , "}, - - /* MOVZX / MOVZXD */ - {1, "\x66\x0f\xb6\x51\xf8", "movzwq , "}, - {1, "\x0f\xb6\x51\xf8", "movzwq , "}, - - /* MOVSX / MOVSXD */ - {1, "\x66\x0f\xbe\x51\xf8", "movswq , "}, - {1, "\x0f\xbe\x51\xf8", "movswq , "}, - -#ifdef CONFIG_X86_64 - /* MOVZX / MOVZXD */ - {1, "\x49\x0f\xb6\x51\xf8", "movzbq , "}, - {2, "\x49\x0f\xb7\x51\xf8", "movzbq , "}, - - /* MOVSX / MOVSXD */ - {1, "\x49\x0f\xbe\x51\xf8", "movsbq , "}, - {2, "\x49\x0f\xbf\x51\xf8", "movsbq , "}, - {4, "\x49\x63\x51\xf8", "movslq , "}, -#endif -}; - -static bool selftest_opcode_one(const struct selftest_opcode *op) -{ - unsigned size; - - kmemcheck_opcode_decode(op->insn, &size); - - if (size == op->expected_size) - return true; - - printk(KERN_WARNING "kmemcheck: opcode %s: expected size %d, got %d\n", - op->desc, op->expected_size, size); - return false; -} - -static bool selftest_opcodes_all(void) -{ - bool pass = true; - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(selftest_opcodes); ++i) - pass = pass && selftest_opcode_one(&selftest_opcodes[i]); - - return pass; -} - -bool kmemcheck_selftest(void) -{ - bool pass = true; - - pass = pass && selftest_opcodes_all(); - - return pass; -} diff --git a/arch/x86/mm/kmemcheck/selftest.h b/arch/x86/mm/kmemcheck/selftest.h index 8d759aae453d..ea32a7d3cf1b 100644 --- a/arch/x86/mm/kmemcheck/selftest.h +++ b/arch/x86/mm/kmemcheck/selftest.h @@ -1,7 +1 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef ARCH_X86_MM_KMEMCHECK_SELFTEST_H -#define ARCH_X86_MM_KMEMCHECK_SELFTEST_H - -bool kmemcheck_selftest(void); - -#endif diff --git a/arch/x86/mm/kmemcheck/shadow.c b/arch/x86/mm/kmemcheck/shadow.c deleted file mode 100644 index c2638a7d2c10..000000000000 --- a/arch/x86/mm/kmemcheck/shadow.c +++ /dev/null @@ -1,173 +0,0 @@ -#include -#include -#include - -#include -#include - -#include "pte.h" -#include "shadow.h" - -/* - * Return the shadow address for the given address. Returns NULL if the - * address is not tracked. - * - * We need to be extremely careful not to follow any invalid pointers, - * because this function can be called for *any* possible address. - */ -void *kmemcheck_shadow_lookup(unsigned long address) -{ - pte_t *pte; - struct page *page; - - if (!virt_addr_valid(address)) - return NULL; - - pte = kmemcheck_pte_lookup(address); - if (!pte) - return NULL; - - page = virt_to_page(address); - if (!page->shadow) - return NULL; - return page->shadow + (address & (PAGE_SIZE - 1)); -} - -static void mark_shadow(void *address, unsigned int n, - enum kmemcheck_shadow status) -{ - unsigned long addr = (unsigned long) address; - unsigned long last_addr = addr + n - 1; - unsigned long page = addr & PAGE_MASK; - unsigned long last_page = last_addr & PAGE_MASK; - unsigned int first_n; - void *shadow; - - /* If the memory range crosses a page boundary, stop there. */ - if (page == last_page) - first_n = n; - else - first_n = page + PAGE_SIZE - addr; - - shadow = kmemcheck_shadow_lookup(addr); - if (shadow) - memset(shadow, status, first_n); - - addr += first_n; - n -= first_n; - - /* Do full-page memset()s. */ - while (n >= PAGE_SIZE) { - shadow = kmemcheck_shadow_lookup(addr); - if (shadow) - memset(shadow, status, PAGE_SIZE); - - addr += PAGE_SIZE; - n -= PAGE_SIZE; - } - - /* Do the remaining page, if any. */ - if (n > 0) { - shadow = kmemcheck_shadow_lookup(addr); - if (shadow) - memset(shadow, status, n); - } -} - -void kmemcheck_mark_unallocated(void *address, unsigned int n) -{ - mark_shadow(address, n, KMEMCHECK_SHADOW_UNALLOCATED); -} - -void kmemcheck_mark_uninitialized(void *address, unsigned int n) -{ - mark_shadow(address, n, KMEMCHECK_SHADOW_UNINITIALIZED); -} - -/* - * Fill the shadow memory of the given address such that the memory at that - * address is marked as being initialized. - */ -void kmemcheck_mark_initialized(void *address, unsigned int n) -{ - mark_shadow(address, n, KMEMCHECK_SHADOW_INITIALIZED); -} -EXPORT_SYMBOL_GPL(kmemcheck_mark_initialized); - -void kmemcheck_mark_freed(void *address, unsigned int n) -{ - mark_shadow(address, n, KMEMCHECK_SHADOW_FREED); -} - -void kmemcheck_mark_unallocated_pages(struct page *p, unsigned int n) -{ - unsigned int i; - - for (i = 0; i < n; ++i) - kmemcheck_mark_unallocated(page_address(&p[i]), PAGE_SIZE); -} - -void kmemcheck_mark_uninitialized_pages(struct page *p, unsigned int n) -{ - unsigned int i; - - for (i = 0; i < n; ++i) - kmemcheck_mark_uninitialized(page_address(&p[i]), PAGE_SIZE); -} - -void kmemcheck_mark_initialized_pages(struct page *p, unsigned int n) -{ - unsigned int i; - - for (i = 0; i < n; ++i) - kmemcheck_mark_initialized(page_address(&p[i]), PAGE_SIZE); -} - -enum kmemcheck_shadow kmemcheck_shadow_test(void *shadow, unsigned int size) -{ -#ifdef CONFIG_KMEMCHECK_PARTIAL_OK - uint8_t *x; - unsigned int i; - - x = shadow; - - /* - * Make sure _some_ bytes are initialized. Gcc frequently generates - * code to access neighboring bytes. - */ - for (i = 0; i < size; ++i) { - if (x[i] == KMEMCHECK_SHADOW_INITIALIZED) - return x[i]; - } - - return x[0]; -#else - return kmemcheck_shadow_test_all(shadow, size); -#endif -} - -enum kmemcheck_shadow kmemcheck_shadow_test_all(void *shadow, unsigned int size) -{ - uint8_t *x; - unsigned int i; - - x = shadow; - - /* All bytes must be initialized. */ - for (i = 0; i < size; ++i) { - if (x[i] != KMEMCHECK_SHADOW_INITIALIZED) - return x[i]; - } - - return x[0]; -} - -void kmemcheck_shadow_set(void *shadow, unsigned int size) -{ - uint8_t *x; - unsigned int i; - - x = shadow; - for (i = 0; i < size; ++i) - x[i] = KMEMCHECK_SHADOW_INITIALIZED; -} diff --git a/arch/x86/mm/kmemcheck/shadow.h b/arch/x86/mm/kmemcheck/shadow.h index 49768dc18664..ea32a7d3cf1b 100644 --- a/arch/x86/mm/kmemcheck/shadow.h +++ b/arch/x86/mm/kmemcheck/shadow.h @@ -1,19 +1 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef ARCH__X86__MM__KMEMCHECK__SHADOW_H -#define ARCH__X86__MM__KMEMCHECK__SHADOW_H - -enum kmemcheck_shadow { - KMEMCHECK_SHADOW_UNALLOCATED, - KMEMCHECK_SHADOW_UNINITIALIZED, - KMEMCHECK_SHADOW_INITIALIZED, - KMEMCHECK_SHADOW_FREED, -}; - -void *kmemcheck_shadow_lookup(unsigned long address); - -enum kmemcheck_shadow kmemcheck_shadow_test(void *shadow, unsigned int size); -enum kmemcheck_shadow kmemcheck_shadow_test_all(void *shadow, - unsigned int size); -void kmemcheck_shadow_set(void *shadow, unsigned int size); - -#endif diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index baeb872283d9..69c238210325 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -594,21 +594,6 @@ static inline void tasklet_hi_schedule(struct tasklet_struct *t) __tasklet_hi_schedule(t); } -extern void __tasklet_hi_schedule_first(struct tasklet_struct *t); - -/* - * This version avoids touching any other tasklets. Needed for kmemcheck - * in order not to take any page faults while enqueueing this tasklet; - * consider VERY carefully whether you really need this or - * tasklet_hi_schedule()... - */ -static inline void tasklet_hi_schedule_first(struct tasklet_struct *t) -{ - if (!test_and_set_bit(TASKLET_STATE_SCHED, &t->state)) - __tasklet_hi_schedule_first(t); -} - - static inline void tasklet_disable_nosync(struct tasklet_struct *t) { atomic_inc(&t->count); diff --git a/include/linux/kmemcheck.h b/include/linux/kmemcheck.h index 7b1d7bead7d9..ea32a7d3cf1b 100644 --- a/include/linux/kmemcheck.h +++ b/include/linux/kmemcheck.h @@ -1,172 +1 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef LINUX_KMEMCHECK_H -#define LINUX_KMEMCHECK_H - -#include -#include - -#ifdef CONFIG_KMEMCHECK -extern int kmemcheck_enabled; - -/* The slab-related functions. */ -void kmemcheck_alloc_shadow(struct page *page, int order, gfp_t flags, int node); -void kmemcheck_free_shadow(struct page *page, int order); -void kmemcheck_slab_alloc(struct kmem_cache *s, gfp_t gfpflags, void *object, - size_t size); -void kmemcheck_slab_free(struct kmem_cache *s, void *object, size_t size); - -void kmemcheck_pagealloc_alloc(struct page *p, unsigned int order, - gfp_t gfpflags); - -void kmemcheck_show_pages(struct page *p, unsigned int n); -void kmemcheck_hide_pages(struct page *p, unsigned int n); - -bool kmemcheck_page_is_tracked(struct page *p); - -void kmemcheck_mark_unallocated(void *address, unsigned int n); -void kmemcheck_mark_uninitialized(void *address, unsigned int n); -void kmemcheck_mark_initialized(void *address, unsigned int n); -void kmemcheck_mark_freed(void *address, unsigned int n); - -void kmemcheck_mark_unallocated_pages(struct page *p, unsigned int n); -void kmemcheck_mark_uninitialized_pages(struct page *p, unsigned int n); -void kmemcheck_mark_initialized_pages(struct page *p, unsigned int n); - -int kmemcheck_show_addr(unsigned long address); -int kmemcheck_hide_addr(unsigned long address); - -bool kmemcheck_is_obj_initialized(unsigned long addr, size_t size); - -/* - * Bitfield annotations - * - * How to use: If you have a struct using bitfields, for example - * - * struct a { - * int x:8, y:8; - * }; - * - * then this should be rewritten as - * - * struct a { - * kmemcheck_bitfield_begin(flags); - * int x:8, y:8; - * kmemcheck_bitfield_end(flags); - * }; - * - * Now the "flags_begin" and "flags_end" members may be used to refer to the - * beginning and end, respectively, of the bitfield (and things like - * &x.flags_begin is allowed). As soon as the struct is allocated, the bit- - * fields should be annotated: - * - * struct a *a = kmalloc(sizeof(struct a), GFP_KERNEL); - * kmemcheck_annotate_bitfield(a, flags); - */ -#define kmemcheck_bitfield_begin(name) \ - int name##_begin[0]; - -#define kmemcheck_bitfield_end(name) \ - int name##_end[0]; - -#define kmemcheck_annotate_bitfield(ptr, name) \ - do { \ - int _n; \ - \ - if (!ptr) \ - break; \ - \ - _n = (long) &((ptr)->name##_end) \ - - (long) &((ptr)->name##_begin); \ - BUILD_BUG_ON(_n < 0); \ - \ - kmemcheck_mark_initialized(&((ptr)->name##_begin), _n); \ - } while (0) - -#define kmemcheck_annotate_variable(var) \ - do { \ - kmemcheck_mark_initialized(&(var), sizeof(var)); \ - } while (0) \ - -#else -#define kmemcheck_enabled 0 - -static inline void -kmemcheck_alloc_shadow(struct page *page, int order, gfp_t flags, int node) -{ -} - -static inline void -kmemcheck_free_shadow(struct page *page, int order) -{ -} - -static inline void -kmemcheck_slab_alloc(struct kmem_cache *s, gfp_t gfpflags, void *object, - size_t size) -{ -} - -static inline void kmemcheck_slab_free(struct kmem_cache *s, void *object, - size_t size) -{ -} - -static inline void kmemcheck_pagealloc_alloc(struct page *p, - unsigned int order, gfp_t gfpflags) -{ -} - -static inline bool kmemcheck_page_is_tracked(struct page *p) -{ - return false; -} - -static inline void kmemcheck_mark_unallocated(void *address, unsigned int n) -{ -} - -static inline void kmemcheck_mark_uninitialized(void *address, unsigned int n) -{ -} - -static inline void kmemcheck_mark_initialized(void *address, unsigned int n) -{ -} - -static inline void kmemcheck_mark_freed(void *address, unsigned int n) -{ -} - -static inline void kmemcheck_mark_unallocated_pages(struct page *p, - unsigned int n) -{ -} - -static inline void kmemcheck_mark_uninitialized_pages(struct page *p, - unsigned int n) -{ -} - -static inline void kmemcheck_mark_initialized_pages(struct page *p, - unsigned int n) -{ -} - -static inline bool kmemcheck_is_obj_initialized(unsigned long addr, size_t size) -{ - return true; -} - -#define kmemcheck_bitfield_begin(name) -#define kmemcheck_bitfield_end(name) -#define kmemcheck_annotate_bitfield(ptr, name) \ - do { \ - } while (0) - -#define kmemcheck_annotate_variable(var) \ - do { \ - } while (0) - -#endif /* CONFIG_KMEMCHECK */ - -#endif /* LINUX_KMEMCHECK_H */ diff --git a/kernel/softirq.c b/kernel/softirq.c index 662f7b1b7a78..2f5e87f1bae2 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -486,16 +486,6 @@ void __tasklet_hi_schedule(struct tasklet_struct *t) } EXPORT_SYMBOL(__tasklet_hi_schedule); -void __tasklet_hi_schedule_first(struct tasklet_struct *t) -{ - lockdep_assert_irqs_disabled(); - - t->next = __this_cpu_read(tasklet_hi_vec.head); - __this_cpu_write(tasklet_hi_vec.head, t); - __raise_softirq_irqoff(HI_SOFTIRQ); -} -EXPORT_SYMBOL(__tasklet_hi_schedule_first); - static __latent_entropy void tasklet_action(struct softirq_action *a) { struct tasklet_struct *list; diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 9576bd582d4a..7638e2f7fff8 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -30,7 +30,6 @@ #include #include #include -#include #include #include #include @@ -1173,15 +1172,6 @@ static struct ctl_table kern_table[] = { .extra1 = &zero, .extra2 = &one_thousand, }, -#endif -#ifdef CONFIG_KMEMCHECK - { - .procname = "kmemcheck", - .data = &kmemcheck_enabled, - .maxlen = sizeof(int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, #endif { .procname = "panic_on_warn", diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 07ce7449765a..5402e3954659 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -504,7 +504,7 @@ config DEBUG_OBJECTS_ENABLE_DEFAULT config DEBUG_SLAB bool "Debug slab memory allocations" - depends on DEBUG_KERNEL && SLAB && !KMEMCHECK + depends on DEBUG_KERNEL && SLAB help Say Y here to have the kernel do limited verification on memory allocation as well as poisoning memory on free to catch use of freed @@ -516,7 +516,7 @@ config DEBUG_SLAB_LEAK config SLUB_DEBUG_ON bool "SLUB debugging on by default" - depends on SLUB && SLUB_DEBUG && !KMEMCHECK + depends on SLUB && SLUB_DEBUG default n help Boot with debugging on by default. SLUB boots by default with @@ -730,8 +730,6 @@ config DEBUG_STACKOVERFLOW If in doubt, say "N". -source "lib/Kconfig.kmemcheck" - source "lib/Kconfig.kasan" endmenu # "Memory Debugging" diff --git a/lib/Kconfig.kmemcheck b/lib/Kconfig.kmemcheck deleted file mode 100644 index 846e039a86b4..000000000000 --- a/lib/Kconfig.kmemcheck +++ /dev/null @@ -1,94 +0,0 @@ -config HAVE_ARCH_KMEMCHECK - bool - -if HAVE_ARCH_KMEMCHECK - -menuconfig KMEMCHECK - bool "kmemcheck: trap use of uninitialized memory" - depends on DEBUG_KERNEL - depends on !X86_USE_3DNOW - depends on SLUB || SLAB - depends on !CC_OPTIMIZE_FOR_SIZE - depends on !FUNCTION_TRACER - select FRAME_POINTER - select STACKTRACE - default n - help - This option enables tracing of dynamically allocated kernel memory - to see if memory is used before it has been given an initial value. - Be aware that this requires half of your memory for bookkeeping and - will insert extra code at *every* read and write to tracked memory - thus slow down the kernel code (but user code is unaffected). - - The kernel may be started with kmemcheck=0 or kmemcheck=1 to disable - or enable kmemcheck at boot-time. If the kernel is started with - kmemcheck=0, the large memory and CPU overhead is not incurred. - -choice - prompt "kmemcheck: default mode at boot" - depends on KMEMCHECK - default KMEMCHECK_ONESHOT_BY_DEFAULT - help - This option controls the default behaviour of kmemcheck when the - kernel boots and no kmemcheck= parameter is given. - -config KMEMCHECK_DISABLED_BY_DEFAULT - bool "disabled" - depends on KMEMCHECK - -config KMEMCHECK_ENABLED_BY_DEFAULT - bool "enabled" - depends on KMEMCHECK - -config KMEMCHECK_ONESHOT_BY_DEFAULT - bool "one-shot" - depends on KMEMCHECK - help - In one-shot mode, only the first error detected is reported before - kmemcheck is disabled. - -endchoice - -config KMEMCHECK_QUEUE_SIZE - int "kmemcheck: error queue size" - depends on KMEMCHECK - default 64 - help - Select the maximum number of errors to store in the queue. Since - errors can occur virtually anywhere and in any context, we need a - temporary storage area which is guarantueed not to generate any - other faults. The queue will be emptied as soon as a tasklet may - be scheduled. If the queue is full, new error reports will be - lost. - -config KMEMCHECK_SHADOW_COPY_SHIFT - int "kmemcheck: shadow copy size (5 => 32 bytes, 6 => 64 bytes)" - depends on KMEMCHECK - range 2 8 - default 5 - help - Select the number of shadow bytes to save along with each entry of - the queue. These bytes indicate what parts of an allocation are - initialized, uninitialized, etc. and will be displayed when an - error is detected to help the debugging of a particular problem. - -config KMEMCHECK_PARTIAL_OK - bool "kmemcheck: allow partially uninitialized memory" - depends on KMEMCHECK - default y - help - This option works around certain GCC optimizations that produce - 32-bit reads from 16-bit variables where the upper 16 bits are - thrown away afterwards. This may of course also hide some real - bugs. - -config KMEMCHECK_BITOPS_OK - bool "kmemcheck: allow bit-field manipulation" - depends on KMEMCHECK - default n - help - This option silences warnings that would be generated for bit-field - accesses where not all the bits are initialized at the same time. - This may also hide some real bugs. - -endif diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug index 5b0adf1435de..e5e606ee5f71 100644 --- a/mm/Kconfig.debug +++ b/mm/Kconfig.debug @@ -11,7 +11,6 @@ config DEBUG_PAGEALLOC bool "Debug page memory allocations" depends on DEBUG_KERNEL depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC - depends on !KMEMCHECK select PAGE_EXTENSION select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC ---help--- diff --git a/mm/Makefile b/mm/Makefile index 4659b93cba43..e7ebd176fb93 100644 --- a/mm/Makefile +++ b/mm/Makefile @@ -17,7 +17,6 @@ KCOV_INSTRUMENT_slub.o := n KCOV_INSTRUMENT_page_alloc.o := n KCOV_INSTRUMENT_debug-pagealloc.o := n KCOV_INSTRUMENT_kmemleak.o := n -KCOV_INSTRUMENT_kmemcheck.o := n KCOV_INSTRUMENT_memcontrol.o := n KCOV_INSTRUMENT_mmzone.o := n KCOV_INSTRUMENT_vmstat.o := n @@ -70,7 +69,6 @@ obj-$(CONFIG_KSM) += ksm.o obj-$(CONFIG_PAGE_POISONING) += page_poison.o obj-$(CONFIG_SLAB) += slab.o obj-$(CONFIG_SLUB) += slub.o -obj-$(CONFIG_KMEMCHECK) += kmemcheck.o obj-$(CONFIG_KASAN) += kasan/ obj-$(CONFIG_FAILSLAB) += failslab.o obj-$(CONFIG_MEMORY_HOTPLUG) += memory_hotplug.o diff --git a/mm/kmemcheck.c b/mm/kmemcheck.c index b3a4d61d341c..cec594032515 100644 --- a/mm/kmemcheck.c +++ b/mm/kmemcheck.c @@ -1,126 +1 @@ // SPDX-License-Identifier: GPL-2.0 -#include -#include -#include -#include -#include "slab.h" -#include - -void kmemcheck_alloc_shadow(struct page *page, int order, gfp_t flags, int node) -{ - struct page *shadow; - int pages; - int i; - - pages = 1 << order; - - /* - * With kmemcheck enabled, we need to allocate a memory area for the - * shadow bits as well. - */ - shadow = alloc_pages_node(node, flags, order); - if (!shadow) { - if (printk_ratelimit()) - pr_err("kmemcheck: failed to allocate shadow bitmap\n"); - return; - } - - for(i = 0; i < pages; ++i) - page[i].shadow = page_address(&shadow[i]); - - /* - * Mark it as non-present for the MMU so that our accesses to - * this memory will trigger a page fault and let us analyze - * the memory accesses. - */ - kmemcheck_hide_pages(page, pages); -} - -void kmemcheck_free_shadow(struct page *page, int order) -{ - struct page *shadow; - int pages; - int i; - - if (!kmemcheck_page_is_tracked(page)) - return; - - pages = 1 << order; - - kmemcheck_show_pages(page, pages); - - shadow = virt_to_page(page[0].shadow); - - for(i = 0; i < pages; ++i) - page[i].shadow = NULL; - - __free_pages(shadow, order); -} - -void kmemcheck_slab_alloc(struct kmem_cache *s, gfp_t gfpflags, void *object, - size_t size) -{ - if (unlikely(!object)) /* Skip object if allocation failed */ - return; - - /* - * Has already been memset(), which initializes the shadow for us - * as well. - */ - if (gfpflags & __GFP_ZERO) - return; - - /* No need to initialize the shadow of a non-tracked slab. */ - if (s->flags & SLAB_NOTRACK) - return; - - if (!kmemcheck_enabled || gfpflags & __GFP_NOTRACK) { - /* - * Allow notracked objects to be allocated from - * tracked caches. Note however that these objects - * will still get page faults on access, they just - * won't ever be flagged as uninitialized. If page - * faults are not acceptable, the slab cache itself - * should be marked NOTRACK. - */ - kmemcheck_mark_initialized(object, size); - } else if (!s->ctor) { - /* - * New objects should be marked uninitialized before - * they're returned to the called. - */ - kmemcheck_mark_uninitialized(object, size); - } -} - -void kmemcheck_slab_free(struct kmem_cache *s, void *object, size_t size) -{ - /* TODO: RCU freeing is unsupported for now; hide false positives. */ - if (!s->ctor && !(s->flags & SLAB_TYPESAFE_BY_RCU)) - kmemcheck_mark_freed(object, size); -} - -void kmemcheck_pagealloc_alloc(struct page *page, unsigned int order, - gfp_t gfpflags) -{ - int pages; - - if (gfpflags & (__GFP_HIGHMEM | __GFP_NOTRACK)) - return; - - pages = 1 << order; - - /* - * NOTE: We choose to track GFP_ZERO pages too; in fact, they - * can become uninitialized by copying uninitialized memory - * into them. - */ - - /* XXX: Can use zone->node for node? */ - kmemcheck_alloc_shadow(page, order, gfpflags, -1); - - if (gfpflags & __GFP_ZERO) - kmemcheck_mark_initialized_pages(page, pages); - else - kmemcheck_mark_uninitialized_pages(page, pages); -} diff --git a/mm/slub.c b/mm/slub.c index c2c41e178acf..cfd56e5a35fb 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1371,7 +1371,7 @@ static inline void *slab_free_hook(struct kmem_cache *s, void *x) * So in order to make the debug calls that expect irqs to be * disabled we need to disable interrupts temporarily. */ -#if defined(CONFIG_KMEMCHECK) || defined(CONFIG_LOCKDEP) +#ifdef CONFIG_LOCKDEP { unsigned long flags; @@ -1399,8 +1399,7 @@ static inline void slab_free_freelist_hook(struct kmem_cache *s, * Compiler cannot detect this function can be removed if slab_free_hook() * evaluates to nothing. Thus, catch all relevant config debug options here. */ -#if defined(CONFIG_KMEMCHECK) || \ - defined(CONFIG_LOCKDEP) || \ +#if defined(CONFIG_LOCKDEP) || \ defined(CONFIG_DEBUG_KMEMLEAK) || \ defined(CONFIG_DEBUG_OBJECTS_FREE) || \ defined(CONFIG_KASAN) diff --git a/scripts/kernel-doc b/scripts/kernel-doc index 67d051edd615..7bd52b8f63d4 100755 --- a/scripts/kernel-doc +++ b/scripts/kernel-doc @@ -2182,8 +2182,6 @@ sub dump_struct($$) { # strip comments: $members =~ s/\/\*.*?\*\///gos; $nested =~ s/\/\*.*?\*\///gos; - # strip kmemcheck_bitfield_{begin,end}.*; - $members =~ s/kmemcheck_bitfield_.*?;//gos; # strip attributes $members =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i; $members =~ s/__aligned\s*\([^;]*\)//gos; diff --git a/tools/include/linux/kmemcheck.h b/tools/include/linux/kmemcheck.h index 2bccd2c7b897..ea32a7d3cf1b 100644 --- a/tools/include/linux/kmemcheck.h +++ b/tools/include/linux/kmemcheck.h @@ -1,9 +1 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _LIBLOCKDEP_LINUX_KMEMCHECK_H_ -#define _LIBLOCKDEP_LINUX_KMEMCHECK_H_ - -static inline void kmemcheck_mark_initialized(void *address, unsigned int n) -{ -} - -#endif -- cgit v1.2.3 From 4518085e127dff97e74f74a8780d7564e273bec8 Mon Sep 17 00:00:00 2001 From: Kemi Wang Date: Wed, 15 Nov 2017 17:38:22 -0800 Subject: mm, sysctl: make NUMA stats configurable This is the second step which introduces a tunable interface that allow numa stats configurable for optimizing zone_statistics(), as suggested by Dave Hansen and Ying Huang. ========================================================================= When page allocation performance becomes a bottleneck and you can tolerate some possible tool breakage and decreased numa counter precision, you can do: echo 0 > /proc/sys/vm/numa_stat In this case, numa counter update is ignored. We can see about *4.8%*(185->176) drop of cpu cycles per single page allocation and reclaim on Jesper's page_bench01 (single thread) and *8.1%*(343->315) drop of cpu cycles per single page allocation and reclaim on Jesper's page_bench03 (88 threads) running on a 2-Socket Broadwell-based server (88 threads, 126G memory). Benchmark link provided by Jesper D Brouer (increase loop times to 10000000): https://github.com/netoptimizer/prototype-kernel/tree/master/kernel/mm/bench ========================================================================= When page allocation performance is not a bottleneck and you want all tooling to work, you can do: echo 1 > /proc/sys/vm/numa_stat This is system default setting. Many thanks to Michal Hocko, Dave Hansen, Ying Huang and Vlastimil Babka for comments to help improve the original patch. [keescook@chromium.org: make sure mutex is a global static] Link: http://lkml.kernel.org/r/20171107213809.GA4314@beast Link: http://lkml.kernel.org/r/1508290927-8518-1-git-send-email-kemi.wang@intel.com Signed-off-by: Kemi Wang Signed-off-by: Kees Cook Reported-by: Jesper Dangaard Brouer Suggested-by: Dave Hansen Suggested-by: Ying Huang Acked-by: Vlastimil Babka Acked-by: Michal Hocko Cc: "Luis R . Rodriguez" Cc: Kees Cook Cc: Jonathan Corbet Cc: Mel Gorman Cc: Johannes Weiner Cc: Christopher Lameter Cc: Sebastian Andrzej Siewior Cc: Andrey Ryabinin Cc: Tim Chen Cc: Andi Kleen Cc: Aaron Lu Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/sysctl/vm.txt | 16 ++++++++++ include/linux/vmstat.h | 10 +++++++ kernel/sysctl.c | 9 ++++++ mm/mempolicy.c | 3 ++ mm/page_alloc.c | 6 ++++ mm/vmstat.c | 71 +++++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 115 insertions(+) (limited to 'Documentation') diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 3e579740b49f..055c8b3e1018 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -58,6 +58,7 @@ Currently, these files are in /proc/sys/vm: - percpu_pagelist_fraction - stat_interval - stat_refresh +- numa_stat - swappiness - user_reserve_kbytes - vfs_cache_pressure @@ -799,6 +800,21 @@ with no ill effects: errors and warnings on these stats are suppressed.) ============================================================== +numa_stat + +This interface allows runtime configuration of numa statistics. + +When page allocation performance becomes a bottleneck and you can tolerate +some possible tool breakage and decreased numa counter precision, you can +do: + echo 0 > /proc/sys/vm/numa_stat + +When page allocation performance is not a bottleneck and you want all +tooling to work, you can do: + echo 1 > /proc/sys/vm/numa_stat + +============================================================== + swappiness This control is used to define how aggressive the kernel will swap diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 1e0cb72e0598..1779c9817b39 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -7,9 +7,19 @@ #include #include #include +#include extern int sysctl_stat_interval; +#ifdef CONFIG_NUMA +#define ENABLE_NUMA_STAT 1 +#define DISABLE_NUMA_STAT 0 +extern int sysctl_vm_numa_stat; +DECLARE_STATIC_KEY_TRUE(vm_numa_stat_key); +extern int sysctl_vm_numa_stat_handler(struct ctl_table *table, + int write, void __user *buffer, size_t *length, loff_t *ppos); +#endif + #ifdef CONFIG_VM_EVENT_COUNTERS /* * Light weight per cpu counter implementation. diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 7638e2f7fff8..4a13a389e99b 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -1356,6 +1356,15 @@ static struct ctl_table vm_table[] = { .mode = 0644, .proc_handler = &hugetlb_mempolicy_sysctl_handler, }, + { + .procname = "numa_stat", + .data = &sysctl_vm_numa_stat, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = sysctl_vm_numa_stat_handler, + .extra1 = &zero, + .extra2 = &one, + }, #endif { .procname = "hugetlb_shm_group", diff --git a/mm/mempolicy.c b/mm/mempolicy.c index dad166b736ba..4ce44d3ff03d 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1915,6 +1915,9 @@ static struct page *alloc_page_interleave(gfp_t gfp, unsigned order, struct page *page; page = __alloc_pages(gfp, order, nid); + /* skip NUMA_INTERLEAVE_HIT counter update if numa stats is disabled */ + if (!static_branch_likely(&vm_numa_stat_key)) + return page; if (page && page_to_nid(page) == nid) { preempt_disable(); __inc_numa_state(page_zone(page), NUMA_INTERLEAVE_HIT); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 7ca668e946e5..67f523c4711a 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -82,6 +82,8 @@ DEFINE_PER_CPU(int, numa_node); EXPORT_PER_CPU_SYMBOL(numa_node); #endif +DEFINE_STATIC_KEY_TRUE(vm_numa_stat_key); + #ifdef CONFIG_HAVE_MEMORYLESS_NODES /* * N.B., Do NOT reference the '_numa_mem_' per cpu variable directly. @@ -2777,6 +2779,10 @@ static inline void zone_statistics(struct zone *preferred_zone, struct zone *z) #ifdef CONFIG_NUMA enum numa_stat_item local_stat = NUMA_LOCAL; + /* skip numa counters update if numa stats is disabled */ + if (!static_branch_likely(&vm_numa_stat_key)) + return; + if (z->node != numa_node_id()) local_stat = NUMA_OTHER; diff --git a/mm/vmstat.c b/mm/vmstat.c index 7d11554861e4..40b2db6db6b1 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -32,6 +32,77 @@ #define NUMA_STATS_THRESHOLD (U16_MAX - 2) +#ifdef CONFIG_NUMA +int sysctl_vm_numa_stat = ENABLE_NUMA_STAT; + +/* zero numa counters within a zone */ +static void zero_zone_numa_counters(struct zone *zone) +{ + int item, cpu; + + for (item = 0; item < NR_VM_NUMA_STAT_ITEMS; item++) { + atomic_long_set(&zone->vm_numa_stat[item], 0); + for_each_online_cpu(cpu) + per_cpu_ptr(zone->pageset, cpu)->vm_numa_stat_diff[item] + = 0; + } +} + +/* zero numa counters of all the populated zones */ +static void zero_zones_numa_counters(void) +{ + struct zone *zone; + + for_each_populated_zone(zone) + zero_zone_numa_counters(zone); +} + +/* zero global numa counters */ +static void zero_global_numa_counters(void) +{ + int item; + + for (item = 0; item < NR_VM_NUMA_STAT_ITEMS; item++) + atomic_long_set(&vm_numa_stat[item], 0); +} + +static void invalid_numa_statistics(void) +{ + zero_zones_numa_counters(); + zero_global_numa_counters(); +} + +static DEFINE_MUTEX(vm_numa_stat_lock); + +int sysctl_vm_numa_stat_handler(struct ctl_table *table, int write, + void __user *buffer, size_t *length, loff_t *ppos) +{ + int ret, oldval; + + mutex_lock(&vm_numa_stat_lock); + if (write) + oldval = sysctl_vm_numa_stat; + ret = proc_dointvec_minmax(table, write, buffer, length, ppos); + if (ret || !write) + goto out; + + if (oldval == sysctl_vm_numa_stat) + goto out; + else if (sysctl_vm_numa_stat == ENABLE_NUMA_STAT) { + static_branch_enable(&vm_numa_stat_key); + pr_info("enable numa statistics\n"); + } else { + static_branch_disable(&vm_numa_stat_key); + invalid_numa_statistics(); + pr_info("disable numa statistics, and clear numa counters\n"); + } + +out: + mutex_unlock(&vm_numa_stat_lock); + return ret; +} +#endif + #ifdef CONFIG_VM_EVENT_COUNTERS DEFINE_PER_CPU(struct vm_event_state, vm_event_states) = {{0}}; EXPORT_PER_CPU_SYMBOL(vm_event_states); -- cgit v1.2.3 From 5c0342ca7ef17220d8dd2da68d0d349c26ab19df Mon Sep 17 00:00:00 2001 From: Claudio Scordino Date: Tue, 14 Nov 2017 12:19:26 +0100 Subject: sched/deadline: Fix the description of runtime accounting in the documentation Signed-off-by: Claudio Scordino Signed-off-by: Luca Abeni Acked-by: Daniel Bristot de Oliveira Acked-by: Peter Zijlstra Cc: Jonathan Corbet Cc: Linus Torvalds Cc: Mathieu Poirier Cc: Thomas Gleixner Cc: Tommaso Cucinotta Cc: linux-doc@vger.kernel.org Link: http://lkml.kernel.org/r/1510658366-28995-1-git-send-email-claudio@evidence.eu.com Signed-off-by: Ingo Molnar --- Documentation/scheduler/sched-deadline.txt | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/scheduler/sched-deadline.txt b/Documentation/scheduler/sched-deadline.txt index e89e36ec15a5..8ce78f82ae23 100644 --- a/Documentation/scheduler/sched-deadline.txt +++ b/Documentation/scheduler/sched-deadline.txt @@ -204,10 +204,17 @@ CONTENTS It does so by decrementing the runtime of the executing task Ti at a pace equal to - dq = -max{ Ui, (1 - Uinact) } dt + dq = -max{ Ui / Umax, (1 - Uinact - Uextra) } dt - where Uinact is the inactive utilization, computed as (this_bq - running_bw), - and Ui is the bandwidth of task Ti. + where: + + - Ui is the bandwidth of task Ti; + - Umax is the maximum reclaimable utilization (subjected to RT throttling + limits); + - Uinact is the (per runqueue) inactive utilization, computed as + (this_bq - running_bw); + - Uextra is the (per runqueue) extra reclaimable utilization + (subjected to RT throttling limits). Let's now see a trivial example of two deadline tasks with runtime equal -- cgit v1.2.3 From a269574489d4fd4615562090b130cfc79309176e Mon Sep 17 00:00:00 2001 From: Sagar Arun Kamble Date: Thu, 16 Nov 2017 19:02:41 +0530 Subject: drm/i915/guc: Rename i915_guc_submission.c|h to intel_guc_submission.c|h With all component structures and functions named appropriately, change the names of GuC submission source files. There were bunch of style issues in guc_submission.c that are highlighted now by checkpatch. Fix those. Update name in Documentation/gpu. (Joonas) v2: Rebase. v3: Rebase. Signed-off-by: Sagar Arun Kamble Cc: Michal Wajdeczko Cc: Michal Winiarski Cc: Chris Wilson Cc: Joonas Lahtinen Acked-by: Chris Wilson Acked-by: Joonas Lahtinen Acked-by: Oscar Mateo Reviewed-by: Michal Wajdeczko Link: https://patchwork.freedesktop.org/patch/msgid/1510839162-25197-6-git-send-email-sagar.a.kamble@intel.com Signed-off-by: Chris Wilson --- Documentation/gpu/i915.rst | 4 +- drivers/gpu/drm/i915/Makefile | 6 +- drivers/gpu/drm/i915/i915_debugfs.c | 2 +- drivers/gpu/drm/i915/i915_guc_submission.c | 1463 -------------------------- drivers/gpu/drm/i915/i915_guc_submission.h | 80 -- drivers/gpu/drm/i915/intel_guc.c | 2 +- drivers/gpu/drm/i915/intel_guc_submission.c | 1477 +++++++++++++++++++++++++++ drivers/gpu/drm/i915/intel_guc_submission.h | 81 ++ drivers/gpu/drm/i915/intel_uc.c | 2 +- 9 files changed, 1566 insertions(+), 1551 deletions(-) delete mode 100644 drivers/gpu/drm/i915/i915_guc_submission.c delete mode 100644 drivers/gpu/drm/i915/i915_guc_submission.h create mode 100644 drivers/gpu/drm/i915/intel_guc_submission.c create mode 100644 drivers/gpu/drm/i915/intel_guc_submission.h (limited to 'Documentation') diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst index 2e7ee0313c1c..21577eabaf78 100644 --- a/Documentation/gpu/i915.rst +++ b/Documentation/gpu/i915.rst @@ -350,10 +350,10 @@ GuC-specific firmware loader GuC-based command submission ---------------------------- -.. kernel-doc:: drivers/gpu/drm/i915/i915_guc_submission.c +.. kernel-doc:: drivers/gpu/drm/i915/intel_guc_submission.c :doc: GuC-based command submission -.. kernel-doc:: drivers/gpu/drm/i915/i915_guc_submission.c +.. kernel-doc:: drivers/gpu/drm/i915/intel_guc_submission.c :internal: GuC Firmware Layout diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index f7afd44214b5..c3649ec5b041 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -82,10 +82,10 @@ i915-y += intel_uc.o \ intel_uc_fw.o \ intel_guc.o \ intel_guc_ct.o \ - intel_guc_log.o \ intel_guc_fw.o \ - intel_huc.o \ - i915_guc_submission.o + intel_guc_log.o \ + intel_guc_submission.o \ + intel_huc.o # autogenerated null render state i915-y += intel_renderstate_gen6.o \ diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index ce023587dd30..ff8f508a7661 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -30,7 +30,7 @@ #include #include #include "intel_drv.h" -#include "i915_guc_submission.h" +#include "intel_guc_submission.h" static inline struct drm_i915_private *node_to_i915(struct drm_info_node *node) { diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c deleted file mode 100644 index 22dbc254ee85..000000000000 --- a/drivers/gpu/drm/i915/i915_guc_submission.c +++ /dev/null @@ -1,1463 +0,0 @@ -/* - * Copyright © 2014 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - * - */ - -#include -#include - -#include "i915_guc_submission.h" -#include "i915_drv.h" - -/** - * DOC: GuC-based command submission - * - * GuC client: - * A intel_guc_client refers to a submission path through GuC. Currently, there - * are two clients. One of them (the execbuf_client) is charged with all - * submissions to the GuC, the other one (preempt_client) is responsible for - * preempting the execbuf_client. This struct is the owner of a doorbell, a - * process descriptor and a workqueue (all of them inside a single gem object - * that contains all required pages for these elements). - * - * GuC stage descriptor: - * During initialization, the driver allocates a static pool of 1024 such - * descriptors, and shares them with the GuC. - * Currently, there exists a 1:1 mapping between a intel_guc_client and a - * guc_stage_desc (via the client's stage_id), so effectively only one - * gets used. This stage descriptor lets the GuC know about the doorbell, - * workqueue and process descriptor. Theoretically, it also lets the GuC - * know about our HW contexts (context ID, etc...), but we actually - * employ a kind of submission where the GuC uses the LRCA sent via the work - * item instead (the single guc_stage_desc associated to execbuf client - * contains information about the default kernel context only, but this is - * essentially unused). This is called a "proxy" submission. - * - * The Scratch registers: - * There are 16 MMIO-based registers start from 0xC180. The kernel driver writes - * a value to the action register (SOFT_SCRATCH_0) along with any data. It then - * triggers an interrupt on the GuC via another register write (0xC4C8). - * Firmware writes a success/fail code back to the action register after - * processes the request. The kernel driver polls waiting for this update and - * then proceeds. - * See intel_guc_send() - * - * Doorbells: - * Doorbells are interrupts to uKernel. A doorbell is a single cache line (QW) - * mapped into process space. - * - * Work Items: - * There are several types of work items that the host may place into a - * workqueue, each with its own requirements and limitations. Currently only - * WQ_TYPE_INORDER is needed to support legacy submission via GuC, which - * represents in-order queue. The kernel driver packs ring tail pointer and an - * ELSP context descriptor dword into Work Item. - * See guc_add_request() - * - * ADS: - * The Additional Data Struct (ADS) has pointers for different buffers used by - * the GuC. One single gem object contains the ADS struct itself (guc_ads), the - * scheduling policies (guc_policies), a structure describing a collection of - * register sets (guc_mmio_reg_state) and some extra pages for the GuC to save - * its internal state for sleep. - * - */ - -static inline bool is_high_priority(struct intel_guc_client *client) -{ - return (client->priority == GUC_CLIENT_PRIORITY_KMD_HIGH || - client->priority == GUC_CLIENT_PRIORITY_HIGH); -} - -static int __reserve_doorbell(struct intel_guc_client *client) -{ - unsigned long offset; - unsigned long end; - u16 id; - - GEM_BUG_ON(client->doorbell_id != GUC_DOORBELL_INVALID); - - /* - * The bitmap tracks which doorbell registers are currently in use. - * It is split into two halves; the first half is used for normal - * priority contexts, the second half for high-priority ones. - */ - offset = 0; - end = GUC_NUM_DOORBELLS/2; - if (is_high_priority(client)) { - offset = end; - end += offset; - } - - id = find_next_zero_bit(client->guc->doorbell_bitmap, end, offset); - if (id == end) - return -ENOSPC; - - __set_bit(id, client->guc->doorbell_bitmap); - client->doorbell_id = id; - DRM_DEBUG_DRIVER("client %u (high prio=%s) reserved doorbell: %d\n", - client->stage_id, yesno(is_high_priority(client)), - id); - return 0; -} - -static void __unreserve_doorbell(struct intel_guc_client *client) -{ - GEM_BUG_ON(client->doorbell_id == GUC_DOORBELL_INVALID); - - __clear_bit(client->doorbell_id, client->guc->doorbell_bitmap); - client->doorbell_id = GUC_DOORBELL_INVALID; -} - -/* - * Tell the GuC to allocate or deallocate a specific doorbell - */ - -static int __guc_allocate_doorbell(struct intel_guc *guc, u32 stage_id) -{ - u32 action[] = { - INTEL_GUC_ACTION_ALLOCATE_DOORBELL, - stage_id - }; - - return intel_guc_send(guc, action, ARRAY_SIZE(action)); -} - -static int __guc_deallocate_doorbell(struct intel_guc *guc, u32 stage_id) -{ - u32 action[] = { - INTEL_GUC_ACTION_DEALLOCATE_DOORBELL, - stage_id - }; - - return intel_guc_send(guc, action, ARRAY_SIZE(action)); -} - -static struct guc_stage_desc *__get_stage_desc(struct intel_guc_client *client) -{ - struct guc_stage_desc *base = client->guc->stage_desc_pool_vaddr; - - return &base[client->stage_id]; -} - -/* - * Initialise, update, or clear doorbell data shared with the GuC - * - * These functions modify shared data and so need access to the mapped - * client object which contains the page being used for the doorbell - */ - -static void __update_doorbell_desc(struct intel_guc_client *client, u16 new_id) -{ - struct guc_stage_desc *desc; - - /* Update the GuC's idea of the doorbell ID */ - desc = __get_stage_desc(client); - desc->db_id = new_id; -} - -static struct guc_doorbell_info *__get_doorbell(struct intel_guc_client *client) -{ - return client->vaddr + client->doorbell_offset; -} - -static bool has_doorbell(struct intel_guc_client *client) -{ - if (client->doorbell_id == GUC_DOORBELL_INVALID) - return false; - - return test_bit(client->doorbell_id, client->guc->doorbell_bitmap); -} - -static int __create_doorbell(struct intel_guc_client *client) -{ - struct guc_doorbell_info *doorbell; - int err; - - doorbell = __get_doorbell(client); - doorbell->db_status = GUC_DOORBELL_ENABLED; - doorbell->cookie = 0; - - err = __guc_allocate_doorbell(client->guc, client->stage_id); - if (err) { - doorbell->db_status = GUC_DOORBELL_DISABLED; - DRM_ERROR("Couldn't create client %u doorbell: %d\n", - client->stage_id, err); - } - - return err; -} - -static int __destroy_doorbell(struct intel_guc_client *client) -{ - struct drm_i915_private *dev_priv = guc_to_i915(client->guc); - struct guc_doorbell_info *doorbell; - u16 db_id = client->doorbell_id; - - GEM_BUG_ON(db_id >= GUC_DOORBELL_INVALID); - - doorbell = __get_doorbell(client); - doorbell->db_status = GUC_DOORBELL_DISABLED; - doorbell->cookie = 0; - - /* Doorbell release flow requires that we wait for GEN8_DRB_VALID bit - * to go to zero after updating db_status before we call the GuC to - * release the doorbell */ - if (wait_for_us(!(I915_READ(GEN8_DRBREGL(db_id)) & GEN8_DRB_VALID), 10)) - WARN_ONCE(true, "Doorbell never became invalid after disable\n"); - - return __guc_deallocate_doorbell(client->guc, client->stage_id); -} - -static int create_doorbell(struct intel_guc_client *client) -{ - int ret; - - ret = __reserve_doorbell(client); - if (ret) - return ret; - - __update_doorbell_desc(client, client->doorbell_id); - - ret = __create_doorbell(client); - if (ret) - goto err; - - return 0; - -err: - __update_doorbell_desc(client, GUC_DOORBELL_INVALID); - __unreserve_doorbell(client); - return ret; -} - -static int destroy_doorbell(struct intel_guc_client *client) -{ - int err; - - GEM_BUG_ON(!has_doorbell(client)); - - /* XXX: wait for any interrupts */ - /* XXX: wait for workqueue to drain */ - - err = __destroy_doorbell(client); - if (err) - return err; - - __update_doorbell_desc(client, GUC_DOORBELL_INVALID); - - __unreserve_doorbell(client); - - return 0; -} - -static unsigned long __select_cacheline(struct intel_guc* guc) -{ - unsigned long offset; - - /* Doorbell uses a single cache line within a page */ - offset = offset_in_page(guc->db_cacheline); - - /* Moving to next cache line to reduce contention */ - guc->db_cacheline += cache_line_size(); - - DRM_DEBUG_DRIVER("reserved cacheline 0x%lx, next 0x%x, linesize %u\n", - offset, guc->db_cacheline, cache_line_size()); - return offset; -} - -static inline struct guc_process_desc * -__get_process_desc(struct intel_guc_client *client) -{ - return client->vaddr + client->proc_desc_offset; -} - -/* - * Initialise the process descriptor shared with the GuC firmware. - */ -static void guc_proc_desc_init(struct intel_guc *guc, - struct intel_guc_client *client) -{ - struct guc_process_desc *desc; - - desc = memset(__get_process_desc(client), 0, sizeof(*desc)); - - /* - * XXX: pDoorbell and WQVBaseAddress are pointers in process address - * space for ring3 clients (set them as in mmap_ioctl) or kernel - * space for kernel clients (map on demand instead? May make debug - * easier to have it mapped). - */ - desc->wq_base_addr = 0; - desc->db_base_addr = 0; - - desc->stage_id = client->stage_id; - desc->wq_size_bytes = GUC_WQ_SIZE; - desc->wq_status = WQ_STATUS_ACTIVE; - desc->priority = client->priority; -} - -static int guc_stage_desc_pool_create(struct intel_guc *guc) -{ - struct i915_vma *vma; - void *vaddr; - - vma = intel_guc_allocate_vma(guc, - PAGE_ALIGN(sizeof(struct guc_stage_desc) * - GUC_MAX_STAGE_DESCRIPTORS)); - if (IS_ERR(vma)) - return PTR_ERR(vma); - - vaddr = i915_gem_object_pin_map(vma->obj, I915_MAP_WB); - if (IS_ERR(vaddr)) { - i915_vma_unpin_and_release(&vma); - return PTR_ERR(vaddr); - } - - guc->stage_desc_pool = vma; - guc->stage_desc_pool_vaddr = vaddr; - ida_init(&guc->stage_ids); - - return 0; -} - -static void guc_stage_desc_pool_destroy(struct intel_guc *guc) -{ - ida_destroy(&guc->stage_ids); - i915_gem_object_unpin_map(guc->stage_desc_pool->obj); - i915_vma_unpin_and_release(&guc->stage_desc_pool); -} - -/* - * Initialise/clear the stage descriptor shared with the GuC firmware. - * - * This descriptor tells the GuC where (in GGTT space) to find the important - * data structures relating to this client (doorbell, process descriptor, - * write queue, etc). - */ -static void guc_stage_desc_init(struct intel_guc *guc, - struct intel_guc_client *client) -{ - struct drm_i915_private *dev_priv = guc_to_i915(guc); - struct intel_engine_cs *engine; - struct i915_gem_context *ctx = client->owner; - struct guc_stage_desc *desc; - unsigned int tmp; - u32 gfx_addr; - - desc = __get_stage_desc(client); - memset(desc, 0, sizeof(*desc)); - - desc->attribute = GUC_STAGE_DESC_ATTR_ACTIVE | GUC_STAGE_DESC_ATTR_KERNEL; - if (is_high_priority(client)) - desc->attribute |= GUC_STAGE_DESC_ATTR_PREEMPT; - desc->stage_id = client->stage_id; - desc->priority = client->priority; - desc->db_id = client->doorbell_id; - - for_each_engine_masked(engine, dev_priv, client->engines, tmp) { - struct intel_context *ce = &ctx->engine[engine->id]; - u32 guc_engine_id = engine->guc_id; - struct guc_execlist_context *lrc = &desc->lrc[guc_engine_id]; - - /* TODO: We have a design issue to be solved here. Only when we - * receive the first batch, we know which engine is used by the - * user. But here GuC expects the lrc and ring to be pinned. It - * is not an issue for default context, which is the only one - * for now who owns a GuC client. But for future owner of GuC - * client, need to make sure lrc is pinned prior to enter here. - */ - if (!ce->state) - break; /* XXX: continue? */ - - /* - * XXX: When this is a GUC_STAGE_DESC_ATTR_KERNEL client (proxy - * submission or, in other words, not using a direct submission - * model) the KMD's LRCA is not used for any work submission. - * Instead, the GuC uses the LRCA of the user mode context (see - * guc_add_request below). - */ - lrc->context_desc = lower_32_bits(ce->lrc_desc); - - /* The state page is after PPHWSP */ - lrc->ring_lrca = - guc_ggtt_offset(ce->state) + LRC_STATE_PN * PAGE_SIZE; - - /* XXX: In direct submission, the GuC wants the HW context id - * here. In proxy submission, it wants the stage id */ - lrc->context_id = (client->stage_id << GUC_ELC_CTXID_OFFSET) | - (guc_engine_id << GUC_ELC_ENGINE_OFFSET); - - lrc->ring_begin = guc_ggtt_offset(ce->ring->vma); - lrc->ring_end = lrc->ring_begin + ce->ring->size - 1; - lrc->ring_next_free_location = lrc->ring_begin; - lrc->ring_current_tail_pointer_value = 0; - - desc->engines_used |= (1 << guc_engine_id); - } - - DRM_DEBUG_DRIVER("Host engines 0x%x => GuC engines used 0x%x\n", - client->engines, desc->engines_used); - WARN_ON(desc->engines_used == 0); - - /* - * The doorbell, process descriptor, and workqueue are all parts - * of the client object, which the GuC will reference via the GGTT - */ - gfx_addr = guc_ggtt_offset(client->vma); - desc->db_trigger_phy = sg_dma_address(client->vma->pages->sgl) + - client->doorbell_offset; - desc->db_trigger_cpu = ptr_to_u64(__get_doorbell(client)); - desc->db_trigger_uk = gfx_addr + client->doorbell_offset; - desc->process_desc = gfx_addr + client->proc_desc_offset; - desc->wq_addr = gfx_addr + GUC_DB_SIZE; - desc->wq_size = GUC_WQ_SIZE; - - desc->desc_private = ptr_to_u64(client); -} - -static void guc_stage_desc_fini(struct intel_guc *guc, - struct intel_guc_client *client) -{ - struct guc_stage_desc *desc; - - desc = __get_stage_desc(client); - memset(desc, 0, sizeof(*desc)); -} - -static int guc_shared_data_create(struct intel_guc *guc) -{ - struct i915_vma *vma; - void *vaddr; - - vma = intel_guc_allocate_vma(guc, PAGE_SIZE); - if (IS_ERR(vma)) - return PTR_ERR(vma); - - vaddr = i915_gem_object_pin_map(vma->obj, I915_MAP_WB); - if (IS_ERR(vaddr)) { - i915_vma_unpin_and_release(&vma); - return PTR_ERR(vaddr); - } - - guc->shared_data = vma; - guc->shared_data_vaddr = vaddr; - - return 0; -} - -static void guc_shared_data_destroy(struct intel_guc *guc) -{ - i915_gem_object_unpin_map(guc->shared_data->obj); - i915_vma_unpin_and_release(&guc->shared_data); -} - -/* Construct a Work Item and append it to the GuC's Work Queue */ -static void guc_wq_item_append(struct intel_guc_client *client, - u32 target_engine, u32 context_desc, - u32 ring_tail, u32 fence_id) -{ - /* wqi_len is in DWords, and does not include the one-word header */ - const size_t wqi_size = sizeof(struct guc_wq_item); - const u32 wqi_len = wqi_size / sizeof(u32) - 1; - struct guc_process_desc *desc = __get_process_desc(client); - struct guc_wq_item *wqi; - u32 wq_off; - - lockdep_assert_held(&client->wq_lock); - - /* For now workqueue item is 4 DWs; workqueue buffer is 2 pages. So we - * should not have the case where structure wqi is across page, neither - * wrapped to the beginning. This simplifies the implementation below. - * - * XXX: if not the case, we need save data to a temp wqi and copy it to - * workqueue buffer dw by dw. - */ - BUILD_BUG_ON(wqi_size != 16); - - /* Free space is guaranteed. */ - wq_off = READ_ONCE(desc->tail); - GEM_BUG_ON(CIRC_SPACE(wq_off, READ_ONCE(desc->head), - GUC_WQ_SIZE) < wqi_size); - GEM_BUG_ON(wq_off & (wqi_size - 1)); - - /* WQ starts from the page after doorbell / process_desc */ - wqi = client->vaddr + wq_off + GUC_DB_SIZE; - - /* Now fill in the 4-word work queue item */ - wqi->header = WQ_TYPE_INORDER | - (wqi_len << WQ_LEN_SHIFT) | - (target_engine << WQ_TARGET_SHIFT) | - WQ_NO_WCFLUSH_WAIT; - wqi->context_desc = context_desc; - wqi->submit_element_info = ring_tail << WQ_RING_TAIL_SHIFT; - GEM_BUG_ON(ring_tail > WQ_RING_TAIL_MAX); - wqi->fence_id = fence_id; - - /* Make the update visible to GuC */ - WRITE_ONCE(desc->tail, (wq_off + wqi_size) & (GUC_WQ_SIZE - 1)); -} - -static void guc_reset_wq(struct intel_guc_client *client) -{ - struct guc_process_desc *desc = __get_process_desc(client); - - desc->head = 0; - desc->tail = 0; -} - -static void guc_ring_doorbell(struct intel_guc_client *client) -{ - struct guc_doorbell_info *db; - u32 cookie; - - lockdep_assert_held(&client->wq_lock); - - /* pointer of current doorbell cacheline */ - db = __get_doorbell(client); - - /* - * We're not expecting the doorbell cookie to change behind our back, - * we also need to treat 0 as a reserved value. - */ - cookie = READ_ONCE(db->cookie); - WARN_ON_ONCE(xchg(&db->cookie, cookie + 1 ?: cookie + 2) != cookie); - - /* XXX: doorbell was lost and need to acquire it again */ - GEM_BUG_ON(db->db_status != GUC_DOORBELL_ENABLED); -} - -static void guc_add_request(struct intel_guc *guc, - struct drm_i915_gem_request *rq) -{ - struct intel_guc_client *client = guc->execbuf_client; - struct intel_engine_cs *engine = rq->engine; - u32 ctx_desc = lower_32_bits(intel_lr_context_descriptor(rq->ctx, engine)); - u32 ring_tail = intel_ring_set_tail(rq->ring, rq->tail) / sizeof(u64); - - spin_lock(&client->wq_lock); - - guc_wq_item_append(client, engine->guc_id, ctx_desc, - ring_tail, rq->global_seqno); - guc_ring_doorbell(client); - - client->submissions[engine->id] += 1; - - spin_unlock(&client->wq_lock); -} - -/* - * When we're doing submissions using regular execlists backend, writing to - * ELSP from CPU side is enough to make sure that writes to ringbuffer pages - * pinned in mappable aperture portion of GGTT are visible to command streamer. - * Writes done by GuC on our behalf are not guaranteeing such ordering, - * therefore, to ensure the flush, we're issuing a POSTING READ. - */ -static void flush_ggtt_writes(struct i915_vma *vma) -{ - struct drm_i915_private *dev_priv = to_i915(vma->obj->base.dev); - - if (i915_vma_is_map_and_fenceable(vma)) - POSTING_READ_FW(GUC_STATUS); -} - -#define GUC_PREEMPT_FINISHED 0x1 -#define GUC_PREEMPT_BREADCRUMB_DWORDS 0x8 -static void inject_preempt_context(struct work_struct *work) -{ - struct guc_preempt_work *preempt_work = - container_of(work, typeof(*preempt_work), work); - struct intel_engine_cs *engine = preempt_work->engine; - struct intel_guc *guc = container_of(preempt_work, typeof(*guc), - preempt_work[engine->id]); - struct intel_guc_client *client = guc->preempt_client; - struct guc_stage_desc *stage_desc = __get_stage_desc(client); - struct intel_ring *ring = client->owner->engine[engine->id].ring; - u32 ctx_desc = lower_32_bits(intel_lr_context_descriptor(client->owner, - engine)); - u32 *cs = ring->vaddr + ring->tail; - u32 data[7]; - - if (engine->id == RCS) { - cs = gen8_emit_ggtt_write_rcs(cs, GUC_PREEMPT_FINISHED, - intel_hws_preempt_done_address(engine)); - } else { - cs = gen8_emit_ggtt_write(cs, GUC_PREEMPT_FINISHED, - intel_hws_preempt_done_address(engine)); - *cs++ = MI_NOOP; - *cs++ = MI_NOOP; - } - *cs++ = MI_USER_INTERRUPT; - *cs++ = MI_NOOP; - - GEM_BUG_ON(!IS_ALIGNED(ring->size, - GUC_PREEMPT_BREADCRUMB_DWORDS * sizeof(u32))); - GEM_BUG_ON((void *)cs - (ring->vaddr + ring->tail) != - GUC_PREEMPT_BREADCRUMB_DWORDS * sizeof(u32)); - - ring->tail += GUC_PREEMPT_BREADCRUMB_DWORDS * sizeof(u32); - ring->tail &= (ring->size - 1); - - flush_ggtt_writes(ring->vma); - - spin_lock_irq(&client->wq_lock); - guc_wq_item_append(client, engine->guc_id, ctx_desc, - ring->tail / sizeof(u64), 0); - spin_unlock_irq(&client->wq_lock); - - /* - * If GuC firmware performs an engine reset while that engine had - * a preemption pending, it will set the terminated attribute bit - * on our preemption stage descriptor. GuC firmware retains all - * pending work items for a high-priority GuC client, unlike the - * normal-priority GuC client where work items are dropped. It - * wants to make sure the preempt-to-idle work doesn't run when - * scheduling resumes, and uses this bit to inform its scheduler - * and presumably us as well. Our job is to clear it for the next - * preemption after reset, otherwise that and future preemptions - * will never complete. We'll just clear it every time. - */ - stage_desc->attribute &= ~GUC_STAGE_DESC_ATTR_TERMINATED; - - data[0] = INTEL_GUC_ACTION_REQUEST_PREEMPTION; - data[1] = client->stage_id; - data[2] = INTEL_GUC_PREEMPT_OPTION_DROP_WORK_Q | - INTEL_GUC_PREEMPT_OPTION_DROP_SUBMIT_Q; - data[3] = engine->guc_id; - data[4] = guc->execbuf_client->priority; - data[5] = guc->execbuf_client->stage_id; - data[6] = guc_ggtt_offset(guc->shared_data); - - if (WARN_ON(intel_guc_send(guc, data, ARRAY_SIZE(data)))) { - execlists_clear_active(&engine->execlists, - EXECLISTS_ACTIVE_PREEMPT); - tasklet_schedule(&engine->execlists.tasklet); - } -} - -/* - * We're using user interrupt and HWSP value to mark that preemption has - * finished and GPU is idle. Normally, we could unwind and continue similar to - * execlists submission path. Unfortunately, with GuC we also need to wait for - * it to finish its own postprocessing, before attempting to submit. Otherwise - * GuC may silently ignore our submissions, and thus we risk losing request at - * best, executing out-of-order and causing kernel panic at worst. - */ -#define GUC_PREEMPT_POSTPROCESS_DELAY_MS 10 -static void wait_for_guc_preempt_report(struct intel_engine_cs *engine) -{ - struct intel_guc *guc = &engine->i915->guc; - struct guc_shared_ctx_data *data = guc->shared_data_vaddr; - struct guc_ctx_report *report = - &data->preempt_ctx_report[engine->guc_id]; - - WARN_ON(wait_for_atomic(report->report_return_status == - INTEL_GUC_REPORT_STATUS_COMPLETE, - GUC_PREEMPT_POSTPROCESS_DELAY_MS)); - /* - * GuC is expecting that we're also going to clear the affected context - * counter, let's also reset the return status to not depend on GuC - * resetting it after recieving another preempt action - */ - report->affected_count = 0; - report->report_return_status = INTEL_GUC_REPORT_STATUS_UNKNOWN; -} - -/** - * guc_submit() - Submit commands through GuC - * @engine: engine associated with the commands - * - * The only error here arises if the doorbell hardware isn't functioning - * as expected, which really shouln't happen. - */ -static void guc_submit(struct intel_engine_cs *engine) -{ - struct intel_guc *guc = &engine->i915->guc; - struct intel_engine_execlists * const execlists = &engine->execlists; - struct execlist_port *port = execlists->port; - unsigned int n; - - for (n = 0; n < execlists_num_ports(execlists); n++) { - struct drm_i915_gem_request *rq; - unsigned int count; - - rq = port_unpack(&port[n], &count); - if (rq && count == 0) { - port_set(&port[n], port_pack(rq, ++count)); - - flush_ggtt_writes(rq->ring->vma); - - guc_add_request(guc, rq); - } - } -} - -static void port_assign(struct execlist_port *port, - struct drm_i915_gem_request *rq) -{ - GEM_BUG_ON(rq == port_request(port)); - - if (port_isset(port)) - i915_gem_request_put(port_request(port)); - - port_set(port, port_pack(i915_gem_request_get(rq), port_count(port))); -} - -static void guc_dequeue(struct intel_engine_cs *engine) -{ - struct intel_engine_execlists * const execlists = &engine->execlists; - struct execlist_port *port = execlists->port; - struct drm_i915_gem_request *last = NULL; - const struct execlist_port * const last_port = - &execlists->port[execlists->port_mask]; - bool submit = false; - struct rb_node *rb; - - spin_lock_irq(&engine->timeline->lock); - rb = execlists->first; - GEM_BUG_ON(rb_first(&execlists->queue) != rb); - - if (!rb) - goto unlock; - - if (HAS_LOGICAL_RING_PREEMPTION(engine->i915) && port_isset(port)) { - struct guc_preempt_work *preempt_work = - &engine->i915->guc.preempt_work[engine->id]; - - if (rb_entry(rb, struct i915_priolist, node)->priority > - max(port_request(port)->priotree.priority, 0)) { - execlists_set_active(execlists, - EXECLISTS_ACTIVE_PREEMPT); - queue_work(engine->i915->guc.preempt_wq, - &preempt_work->work); - goto unlock; - } else if (port_isset(last_port)) { - goto unlock; - } - - port++; - } - - do { - struct i915_priolist *p = rb_entry(rb, typeof(*p), node); - struct drm_i915_gem_request *rq, *rn; - - list_for_each_entry_safe(rq, rn, &p->requests, priotree.link) { - if (last && rq->ctx != last->ctx) { - if (port == last_port) { - __list_del_many(&p->requests, - &rq->priotree.link); - goto done; - } - - if (submit) - port_assign(port, last); - port++; - } - - INIT_LIST_HEAD(&rq->priotree.link); - - __i915_gem_request_submit(rq); - trace_i915_gem_request_in(rq, port_index(port, execlists)); - last = rq; - submit = true; - } - - rb = rb_next(rb); - rb_erase(&p->node, &execlists->queue); - INIT_LIST_HEAD(&p->requests); - if (p->priority != I915_PRIORITY_NORMAL) - kmem_cache_free(engine->i915->priorities, p); - } while (rb); -done: - execlists->first = rb; - if (submit) { - port_assign(port, last); - execlists_set_active(execlists, EXECLISTS_ACTIVE_USER); - guc_submit(engine); - } -unlock: - spin_unlock_irq(&engine->timeline->lock); -} - -static void guc_submission_tasklet(unsigned long data) -{ - struct intel_engine_cs * const engine = (struct intel_engine_cs *)data; - struct intel_engine_execlists * const execlists = &engine->execlists; - struct execlist_port *port = execlists->port; - struct drm_i915_gem_request *rq; - - rq = port_request(&port[0]); - while (rq && i915_gem_request_completed(rq)) { - trace_i915_gem_request_out(rq); - i915_gem_request_put(rq); - - execlists_port_complete(execlists, port); - - rq = port_request(&port[0]); - } - if (!rq) - execlists_clear_active(execlists, EXECLISTS_ACTIVE_USER); - - if (execlists_is_active(execlists, EXECLISTS_ACTIVE_PREEMPT) && - intel_read_status_page(engine, I915_GEM_HWS_PREEMPT_INDEX) == - GUC_PREEMPT_FINISHED) { - execlists_cancel_port_requests(&engine->execlists); - execlists_unwind_incomplete_requests(execlists); - - wait_for_guc_preempt_report(engine); - - execlists_clear_active(execlists, EXECLISTS_ACTIVE_PREEMPT); - intel_write_status_page(engine, I915_GEM_HWS_PREEMPT_INDEX, 0); - } - - if (!execlists_is_active(execlists, EXECLISTS_ACTIVE_PREEMPT)) - guc_dequeue(engine); -} - -/* - * Everything below here is concerned with setup & teardown, and is - * therefore not part of the somewhat time-critical batch-submission - * path of guc_submit() above. - */ - -/* Check that a doorbell register is in the expected state */ -static bool doorbell_ok(struct intel_guc *guc, u16 db_id) -{ - struct drm_i915_private *dev_priv = guc_to_i915(guc); - u32 drbregl; - bool valid; - - GEM_BUG_ON(db_id >= GUC_DOORBELL_INVALID); - - drbregl = I915_READ(GEN8_DRBREGL(db_id)); - valid = drbregl & GEN8_DRB_VALID; - - if (test_bit(db_id, guc->doorbell_bitmap) == valid) - return true; - - DRM_DEBUG_DRIVER("Doorbell %d has unexpected state (0x%x): valid=%s\n", - db_id, drbregl, yesno(valid)); - - return false; -} - -/* - * If the GuC thinks that the doorbell is unassigned (e.g. because we reset and - * reloaded the GuC FW) we can use this function to tell the GuC to reassign the - * doorbell to the rightful owner. - */ -static int __reset_doorbell(struct intel_guc_client *client, u16 db_id) -{ - int err; - - __update_doorbell_desc(client, db_id); - err = __create_doorbell(client); - if (!err) - err = __destroy_doorbell(client); - - return err; -} - -/* - * Set up & tear down each unused doorbell in turn, to ensure that all doorbell - * HW is (re)initialised. For that end, we might have to borrow the first - * client. Also, tell GuC about all the doorbells in use by all clients. - * We do this because the KMD, the GuC and the doorbell HW can easily go out of - * sync (e.g. we can reset the GuC, but not the doorbel HW). - */ -static int guc_init_doorbell_hw(struct intel_guc *guc) -{ - struct intel_guc_client *client = guc->execbuf_client; - bool recreate_first_client = false; - u16 db_id; - int ret; - - /* For unused doorbells, make sure they are disabled */ - for_each_clear_bit(db_id, guc->doorbell_bitmap, GUC_NUM_DOORBELLS) { - if (doorbell_ok(guc, db_id)) - continue; - - if (has_doorbell(client)) { - /* Borrow execbuf_client (we will recreate it later) */ - destroy_doorbell(client); - recreate_first_client = true; - } - - ret = __reset_doorbell(client, db_id); - WARN(ret, "Doorbell %u reset failed, err %d\n", db_id, ret); - } - - if (recreate_first_client) { - ret = __reserve_doorbell(client); - if (unlikely(ret)) { - DRM_ERROR("Couldn't re-reserve first client db: %d\n", ret); - return ret; - } - - __update_doorbell_desc(client, client->doorbell_id); - } - - /* Now for every client (and not only execbuf_client) make sure their - * doorbells are known by the GuC */ - ret = __create_doorbell(guc->execbuf_client); - if (ret) - return ret; - - ret = __create_doorbell(guc->preempt_client); - if (ret) { - __destroy_doorbell(guc->execbuf_client); - return ret; - } - - /* Read back & verify all (used & unused) doorbell registers */ - for (db_id = 0; db_id < GUC_NUM_DOORBELLS; ++db_id) - WARN_ON(!doorbell_ok(guc, db_id)); - - return 0; -} - -/** - * guc_client_alloc() - Allocate an intel_guc_client - * @dev_priv: driver private data structure - * @engines: The set of engines to enable for this client - * @priority: four levels priority _CRITICAL, _HIGH, _NORMAL and _LOW - * The kernel client to replace ExecList submission is created with - * NORMAL priority. Priority of a client for scheduler can be HIGH, - * while a preemption context can use CRITICAL. - * @ctx: the context that owns the client (we use the default render - * context) - * - * Return: An intel_guc_client object if success, else NULL. - */ -static struct intel_guc_client * -guc_client_alloc(struct drm_i915_private *dev_priv, - u32 engines, - u32 priority, - struct i915_gem_context *ctx) -{ - struct intel_guc_client *client; - struct intel_guc *guc = &dev_priv->guc; - struct i915_vma *vma; - void *vaddr; - int ret; - - client = kzalloc(sizeof(*client), GFP_KERNEL); - if (!client) - return ERR_PTR(-ENOMEM); - - client->guc = guc; - client->owner = ctx; - client->engines = engines; - client->priority = priority; - client->doorbell_id = GUC_DOORBELL_INVALID; - spin_lock_init(&client->wq_lock); - - ret = ida_simple_get(&guc->stage_ids, 0, GUC_MAX_STAGE_DESCRIPTORS, - GFP_KERNEL); - if (ret < 0) - goto err_client; - - client->stage_id = ret; - - /* The first page is doorbell/proc_desc. Two followed pages are wq. */ - vma = intel_guc_allocate_vma(guc, GUC_DB_SIZE + GUC_WQ_SIZE); - if (IS_ERR(vma)) { - ret = PTR_ERR(vma); - goto err_id; - } - - /* We'll keep just the first (doorbell/proc) page permanently kmap'd. */ - client->vma = vma; - - vaddr = i915_gem_object_pin_map(vma->obj, I915_MAP_WB); - if (IS_ERR(vaddr)) { - ret = PTR_ERR(vaddr); - goto err_vma; - } - client->vaddr = vaddr; - - client->doorbell_offset = __select_cacheline(guc); - - /* - * Since the doorbell only requires a single cacheline, we can save - * space by putting the application process descriptor in the same - * page. Use the half of the page that doesn't include the doorbell. - */ - if (client->doorbell_offset >= (GUC_DB_SIZE / 2)) - client->proc_desc_offset = 0; - else - client->proc_desc_offset = (GUC_DB_SIZE / 2); - - guc_proc_desc_init(guc, client); - guc_stage_desc_init(guc, client); - - ret = create_doorbell(client); - if (ret) - goto err_vaddr; - - DRM_DEBUG_DRIVER("new priority %u client %p for engine(s) 0x%x: stage_id %u\n", - priority, client, client->engines, client->stage_id); - DRM_DEBUG_DRIVER("doorbell id %u, cacheline offset 0x%lx\n", - client->doorbell_id, client->doorbell_offset); - - return client; - -err_vaddr: - i915_gem_object_unpin_map(client->vma->obj); -err_vma: - i915_vma_unpin_and_release(&client->vma); -err_id: - ida_simple_remove(&guc->stage_ids, client->stage_id); -err_client: - kfree(client); - return ERR_PTR(ret); -} - -static void guc_client_free(struct intel_guc_client *client) -{ - /* - * XXX: wait for any outstanding submissions before freeing memory. - * Be sure to drop any locks - */ - - /* FIXME: in many cases, by the time we get here the GuC has been - * reset, so we cannot destroy the doorbell properly. Ignore the - * error message for now */ - destroy_doorbell(client); - guc_stage_desc_fini(client->guc, client); - i915_gem_object_unpin_map(client->vma->obj); - i915_vma_unpin_and_release(&client->vma); - ida_simple_remove(&client->guc->stage_ids, client->stage_id); - kfree(client); -} - -static int guc_clients_create(struct intel_guc *guc) -{ - struct drm_i915_private *dev_priv = guc_to_i915(guc); - struct intel_guc_client *client; - - GEM_BUG_ON(guc->execbuf_client); - GEM_BUG_ON(guc->preempt_client); - - client = guc_client_alloc(dev_priv, - INTEL_INFO(dev_priv)->ring_mask, - GUC_CLIENT_PRIORITY_KMD_NORMAL, - dev_priv->kernel_context); - if (IS_ERR(client)) { - DRM_ERROR("Failed to create GuC client for submission!\n"); - return PTR_ERR(client); - } - guc->execbuf_client = client; - - client = guc_client_alloc(dev_priv, - INTEL_INFO(dev_priv)->ring_mask, - GUC_CLIENT_PRIORITY_KMD_HIGH, - dev_priv->preempt_context); - if (IS_ERR(client)) { - DRM_ERROR("Failed to create GuC client for preemption!\n"); - guc_client_free(guc->execbuf_client); - guc->execbuf_client = NULL; - return PTR_ERR(client); - } - guc->preempt_client = client; - - return 0; -} - -static void guc_clients_destroy(struct intel_guc *guc) -{ - struct intel_guc_client *client; - - client = fetch_and_zero(&guc->execbuf_client); - guc_client_free(client); - - client = fetch_and_zero(&guc->preempt_client); - guc_client_free(client); -} - -static void guc_policy_init(struct guc_policy *policy) -{ - policy->execution_quantum = POLICY_DEFAULT_EXECUTION_QUANTUM_US; - policy->preemption_time = POLICY_DEFAULT_PREEMPTION_TIME_US; - policy->fault_time = POLICY_DEFAULT_FAULT_TIME_US; - policy->policy_flags = 0; -} - -static void guc_policies_init(struct guc_policies *policies) -{ - struct guc_policy *policy; - u32 p, i; - - policies->dpc_promote_time = POLICY_DEFAULT_DPC_PROMOTE_TIME_US; - policies->max_num_work_items = POLICY_MAX_NUM_WI; - - for (p = 0; p < GUC_CLIENT_PRIORITY_NUM; p++) { - for (i = GUC_RENDER_ENGINE; i < GUC_MAX_ENGINES_NUM; i++) { - policy = &policies->policy[p][i]; - - guc_policy_init(policy); - } - } - - policies->is_valid = 1; -} - -/* - * The first 80 dwords of the register state context, containing the - * execlists and ppgtt registers. - */ -#define LR_HW_CONTEXT_SIZE (80 * sizeof(u32)) - -static int guc_ads_create(struct intel_guc *guc) -{ - struct drm_i915_private *dev_priv = guc_to_i915(guc); - struct i915_vma *vma; - struct page *page; - /* The ads obj includes the struct itself and buffers passed to GuC */ - struct { - struct guc_ads ads; - struct guc_policies policies; - struct guc_mmio_reg_state reg_state; - u8 reg_state_buffer[GUC_S3_SAVE_SPACE_PAGES * PAGE_SIZE]; - } __packed *blob; - struct intel_engine_cs *engine; - enum intel_engine_id id; - const u32 skipped_offset = LRC_HEADER_PAGES * PAGE_SIZE; - const u32 skipped_size = LRC_PPHWSP_SZ * PAGE_SIZE + LR_HW_CONTEXT_SIZE; - u32 base; - - GEM_BUG_ON(guc->ads_vma); - - vma = intel_guc_allocate_vma(guc, PAGE_ALIGN(sizeof(*blob))); - if (IS_ERR(vma)) - return PTR_ERR(vma); - - guc->ads_vma = vma; - - page = i915_vma_first_page(vma); - blob = kmap(page); - - /* GuC scheduling policies */ - guc_policies_init(&blob->policies); - - /* MMIO reg state */ - for_each_engine(engine, dev_priv, id) { - blob->reg_state.white_list[engine->guc_id].mmio_start = - engine->mmio_base + GUC_MMIO_WHITE_LIST_START; - - /* Nothing to be saved or restored for now. */ - blob->reg_state.white_list[engine->guc_id].count = 0; - } - - /* - * The GuC requires a "Golden Context" when it reinitialises - * engines after a reset. Here we use the Render ring default - * context, which must already exist and be pinned in the GGTT, - * so its address won't change after we've told the GuC where - * to find it. Note that we have to skip our header (1 page), - * because our GuC shared data is there. - */ - blob->ads.golden_context_lrca = - guc_ggtt_offset(dev_priv->kernel_context->engine[RCS].state) + skipped_offset; - - /* - * The GuC expects us to exclude the portion of the context image that - * it skips from the size it is to read. It starts reading from after - * the execlist context (so skipping the first page [PPHWSP] and 80 - * dwords). Weird guc is weird. - */ - for_each_engine(engine, dev_priv, id) - blob->ads.eng_state_size[engine->guc_id] = engine->context_size - skipped_size; - - base = guc_ggtt_offset(vma); - blob->ads.scheduler_policies = base + ptr_offset(blob, policies); - blob->ads.reg_state_buffer = base + ptr_offset(blob, reg_state_buffer); - blob->ads.reg_state_addr = base + ptr_offset(blob, reg_state); - - kunmap(page); - - return 0; -} - -static void guc_ads_destroy(struct intel_guc *guc) -{ - i915_vma_unpin_and_release(&guc->ads_vma); -} - -static int guc_preempt_work_create(struct intel_guc *guc) -{ - struct drm_i915_private *dev_priv = guc_to_i915(guc); - struct intel_engine_cs *engine; - enum intel_engine_id id; - - /* - * Even though both sending GuC action, and adding a new workitem to - * GuC workqueue are serialized (each with its own locking), since - * we're using mutliple engines, it's possible that we're going to - * issue a preempt request with two (or more - each for different - * engine) workitems in GuC queue. In this situation, GuC may submit - * all of them, which will make us very confused. - * Our preemption contexts may even already be complete - before we - * even had the chance to sent the preempt action to GuC!. Rather - * than introducing yet another lock, we can just use ordered workqueue - * to make sure we're always sending a single preemption request with a - * single workitem. - */ - guc->preempt_wq = alloc_ordered_workqueue("i915-guc_preempt", - WQ_HIGHPRI); - if (!guc->preempt_wq) - return -ENOMEM; - - for_each_engine(engine, dev_priv, id) { - guc->preempt_work[id].engine = engine; - INIT_WORK(&guc->preempt_work[id].work, inject_preempt_context); - } - - return 0; -} - -static void guc_preempt_work_destroy(struct intel_guc *guc) -{ - struct drm_i915_private *dev_priv = guc_to_i915(guc); - struct intel_engine_cs *engine; - enum intel_engine_id id; - - for_each_engine(engine, dev_priv, id) - cancel_work_sync(&guc->preempt_work[id].work); - - destroy_workqueue(guc->preempt_wq); - guc->preempt_wq = NULL; -} - -/* - * Set up the memory resources to be shared with the GuC (via the GGTT) - * at firmware loading time. - */ -int intel_guc_submission_init(struct intel_guc *guc) -{ - int ret; - - if (guc->stage_desc_pool) - return 0; - - ret = guc_stage_desc_pool_create(guc); - if (ret) - return ret; - /* - * Keep static analysers happy, let them know that we allocated the - * vma after testing that it didn't exist earlier. - */ - GEM_BUG_ON(!guc->stage_desc_pool); - - ret = guc_shared_data_create(guc); - if (ret) - goto err_stage_desc_pool; - GEM_BUG_ON(!guc->shared_data); - - ret = intel_guc_log_create(guc); - if (ret < 0) - goto err_shared_data; - - ret = guc_preempt_work_create(guc); - if (ret) - goto err_log; - GEM_BUG_ON(!guc->preempt_wq); - - ret = guc_ads_create(guc); - if (ret < 0) - goto err_wq; - GEM_BUG_ON(!guc->ads_vma); - - return 0; - -err_wq: - guc_preempt_work_destroy(guc); -err_log: - intel_guc_log_destroy(guc); -err_shared_data: - guc_shared_data_destroy(guc); -err_stage_desc_pool: - guc_stage_desc_pool_destroy(guc); - return ret; -} - -void intel_guc_submission_fini(struct intel_guc *guc) -{ - guc_ads_destroy(guc); - guc_preempt_work_destroy(guc); - intel_guc_log_destroy(guc); - guc_shared_data_destroy(guc); - guc_stage_desc_pool_destroy(guc); -} - -static void guc_interrupts_capture(struct drm_i915_private *dev_priv) -{ - struct intel_rps *rps = &dev_priv->gt_pm.rps; - struct intel_engine_cs *engine; - enum intel_engine_id id; - int irqs; - - /* tell all command streamers to forward interrupts (but not vblank) to GuC */ - irqs = _MASKED_BIT_ENABLE(GFX_INTERRUPT_STEERING); - for_each_engine(engine, dev_priv, id) - I915_WRITE(RING_MODE_GEN7(engine), irqs); - - /* route USER_INTERRUPT to Host, all others are sent to GuC. */ - irqs = GT_RENDER_USER_INTERRUPT << GEN8_RCS_IRQ_SHIFT | - GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT; - /* These three registers have the same bit definitions */ - I915_WRITE(GUC_BCS_RCS_IER, ~irqs); - I915_WRITE(GUC_VCS2_VCS1_IER, ~irqs); - I915_WRITE(GUC_WD_VECS_IER, ~irqs); - - /* - * The REDIRECT_TO_GUC bit of the PMINTRMSK register directs all - * (unmasked) PM interrupts to the GuC. All other bits of this - * register *disable* generation of a specific interrupt. - * - * 'pm_intrmsk_mbz' indicates bits that are NOT to be set when - * writing to the PM interrupt mask register, i.e. interrupts - * that must not be disabled. - * - * If the GuC is handling these interrupts, then we must not let - * the PM code disable ANY interrupt that the GuC is expecting. - * So for each ENABLED (0) bit in this register, we must SET the - * bit in pm_intrmsk_mbz so that it's left enabled for the GuC. - * GuC needs ARAT expired interrupt unmasked hence it is set in - * pm_intrmsk_mbz. - * - * Here we CLEAR REDIRECT_TO_GUC bit in pm_intrmsk_mbz, which will - * result in the register bit being left SET! - */ - rps->pm_intrmsk_mbz |= ARAT_EXPIRED_INTRMSK; - rps->pm_intrmsk_mbz &= ~GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC; -} - -static void guc_interrupts_release(struct drm_i915_private *dev_priv) -{ - struct intel_rps *rps = &dev_priv->gt_pm.rps; - struct intel_engine_cs *engine; - enum intel_engine_id id; - int irqs; - - /* - * tell all command streamers NOT to forward interrupts or vblank - * to GuC. - */ - irqs = _MASKED_FIELD(GFX_FORWARD_VBLANK_MASK, GFX_FORWARD_VBLANK_NEVER); - irqs |= _MASKED_BIT_DISABLE(GFX_INTERRUPT_STEERING); - for_each_engine(engine, dev_priv, id) - I915_WRITE(RING_MODE_GEN7(engine), irqs); - - /* route all GT interrupts to the host */ - I915_WRITE(GUC_BCS_RCS_IER, 0); - I915_WRITE(GUC_VCS2_VCS1_IER, 0); - I915_WRITE(GUC_WD_VECS_IER, 0); - - rps->pm_intrmsk_mbz |= GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC; - rps->pm_intrmsk_mbz &= ~ARAT_EXPIRED_INTRMSK; -} - -static void guc_submission_park(struct intel_engine_cs *engine) -{ - intel_engine_unpin_breadcrumbs_irq(engine); -} - -static void guc_submission_unpark(struct intel_engine_cs *engine) -{ - intel_engine_pin_breadcrumbs_irq(engine); -} - -int intel_guc_submission_enable(struct intel_guc *guc) -{ - struct drm_i915_private *dev_priv = guc_to_i915(guc); - struct intel_engine_cs *engine; - enum intel_engine_id id; - int err; - - /* - * We're using GuC work items for submitting work through GuC. Since - * we're coalescing multiple requests from a single context into a - * single work item prior to assigning it to execlist_port, we can - * never have more work items than the total number of ports (for all - * engines). The GuC firmware is controlling the HEAD of work queue, - * and it is guaranteed that it will remove the work item from the - * queue before our request is completed. - */ - BUILD_BUG_ON(ARRAY_SIZE(engine->execlists.port) * - sizeof(struct guc_wq_item) * - I915_NUM_ENGINES > GUC_WQ_SIZE); - - /* - * We're being called on both module initialization and on reset, - * until this flow is changed, we're using regular client presence to - * determine which case are we in, and whether we should allocate new - * clients or just reset their workqueues. - */ - if (!guc->execbuf_client) { - err = guc_clients_create(guc); - if (err) - return err; - } else { - guc_reset_wq(guc->execbuf_client); - guc_reset_wq(guc->preempt_client); - } - - err = intel_guc_sample_forcewake(guc); - if (err) - goto err_free_clients; - - err = guc_init_doorbell_hw(guc); - if (err) - goto err_free_clients; - - /* Take over from manual control of ELSP (execlists) */ - guc_interrupts_capture(dev_priv); - - for_each_engine(engine, dev_priv, id) { - struct intel_engine_execlists * const execlists = &engine->execlists; - execlists->tasklet.func = guc_submission_tasklet; - engine->park = guc_submission_park; - engine->unpark = guc_submission_unpark; - } - - return 0; - -err_free_clients: - guc_clients_destroy(guc); - return err; -} - -void intel_guc_submission_disable(struct intel_guc *guc) -{ - struct drm_i915_private *dev_priv = guc_to_i915(guc); - - GEM_BUG_ON(dev_priv->gt.awake); /* GT should be parked first */ - - guc_interrupts_release(dev_priv); - - /* Revert back to manual ELSP submission */ - intel_engines_reset_default_submission(dev_priv); - - guc_clients_destroy(guc); -} diff --git a/drivers/gpu/drm/i915/i915_guc_submission.h b/drivers/gpu/drm/i915/i915_guc_submission.h deleted file mode 100644 index f8ae258c89d1..000000000000 --- a/drivers/gpu/drm/i915/i915_guc_submission.h +++ /dev/null @@ -1,80 +0,0 @@ -/* - * Copyright © 2014-2017 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - * - */ - -#ifndef _I915_GUC_SUBMISSION_H_ -#define _I915_GUC_SUBMISSION_H_ - -#include - -#include "i915_gem.h" - -struct drm_i915_private; - -/* - * This structure primarily describes the GEM object shared with the GuC. - * The specs sometimes refer to this object as a "GuC context", but we use - * the term "client" to avoid confusion with hardware contexts. This - * GEM object is held for the entire lifetime of our interaction with - * the GuC, being allocated before the GuC is loaded with its firmware. - * Because there's no way to update the address used by the GuC after - * initialisation, the shared object must stay pinned into the GGTT as - * long as the GuC is in use. We also keep the first page (only) mapped - * into kernel address space, as it includes shared data that must be - * updated on every request submission. - * - * The single GEM object described here is actually made up of several - * separate areas, as far as the GuC is concerned. The first page (kept - * kmap'd) includes the "process descriptor" which holds sequence data for - * the doorbell, and one cacheline which actually *is* the doorbell; a - * write to this will "ring the doorbell" (i.e. send an interrupt to the - * GuC). The subsequent pages of the client object constitute the work - * queue (a circular array of work items), again described in the process - * descriptor. Work queue pages are mapped momentarily as required. - */ -struct intel_guc_client { - struct i915_vma *vma; - void *vaddr; - struct i915_gem_context *owner; - struct intel_guc *guc; - - /* bitmap of (host) engine ids */ - u32 engines; - u32 priority; - u32 stage_id; - u32 proc_desc_offset; - - u16 doorbell_id; - unsigned long doorbell_offset; - - spinlock_t wq_lock; - /* Per-engine counts of GuC submissions */ - u64 submissions[I915_NUM_ENGINES]; -}; - -int intel_guc_submission_init(struct intel_guc *guc); -int intel_guc_submission_enable(struct intel_guc *guc); -void intel_guc_submission_disable(struct intel_guc *guc); -void intel_guc_submission_fini(struct intel_guc *guc); - -#endif diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c index 9678630a1c70..823d0c2e9ad2 100644 --- a/drivers/gpu/drm/i915/intel_guc.c +++ b/drivers/gpu/drm/i915/intel_guc.c @@ -23,8 +23,8 @@ */ #include "intel_guc.h" +#include "intel_guc_submission.h" #include "i915_drv.h" -#include "i915_guc_submission.h" static void gen8_guc_raise_irq(struct intel_guc *guc) { diff --git a/drivers/gpu/drm/i915/intel_guc_submission.c b/drivers/gpu/drm/i915/intel_guc_submission.c new file mode 100644 index 000000000000..9c9e6edfd5be --- /dev/null +++ b/drivers/gpu/drm/i915/intel_guc_submission.c @@ -0,0 +1,1477 @@ +/* + * Copyright © 2014 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + */ + +#include +#include + +#include "intel_guc_submission.h" +#include "i915_drv.h" + +/** + * DOC: GuC-based command submission + * + * GuC client: + * A intel_guc_client refers to a submission path through GuC. Currently, there + * are two clients. One of them (the execbuf_client) is charged with all + * submissions to the GuC, the other one (preempt_client) is responsible for + * preempting the execbuf_client. This struct is the owner of a doorbell, a + * process descriptor and a workqueue (all of them inside a single gem object + * that contains all required pages for these elements). + * + * GuC stage descriptor: + * During initialization, the driver allocates a static pool of 1024 such + * descriptors, and shares them with the GuC. + * Currently, there exists a 1:1 mapping between a intel_guc_client and a + * guc_stage_desc (via the client's stage_id), so effectively only one + * gets used. This stage descriptor lets the GuC know about the doorbell, + * workqueue and process descriptor. Theoretically, it also lets the GuC + * know about our HW contexts (context ID, etc...), but we actually + * employ a kind of submission where the GuC uses the LRCA sent via the work + * item instead (the single guc_stage_desc associated to execbuf client + * contains information about the default kernel context only, but this is + * essentially unused). This is called a "proxy" submission. + * + * The Scratch registers: + * There are 16 MMIO-based registers start from 0xC180. The kernel driver writes + * a value to the action register (SOFT_SCRATCH_0) along with any data. It then + * triggers an interrupt on the GuC via another register write (0xC4C8). + * Firmware writes a success/fail code back to the action register after + * processes the request. The kernel driver polls waiting for this update and + * then proceeds. + * See intel_guc_send() + * + * Doorbells: + * Doorbells are interrupts to uKernel. A doorbell is a single cache line (QW) + * mapped into process space. + * + * Work Items: + * There are several types of work items that the host may place into a + * workqueue, each with its own requirements and limitations. Currently only + * WQ_TYPE_INORDER is needed to support legacy submission via GuC, which + * represents in-order queue. The kernel driver packs ring tail pointer and an + * ELSP context descriptor dword into Work Item. + * See guc_add_request() + * + * ADS: + * The Additional Data Struct (ADS) has pointers for different buffers used by + * the GuC. One single gem object contains the ADS struct itself (guc_ads), the + * scheduling policies (guc_policies), a structure describing a collection of + * register sets (guc_mmio_reg_state) and some extra pages for the GuC to save + * its internal state for sleep. + * + */ + +static inline bool is_high_priority(struct intel_guc_client *client) +{ + return (client->priority == GUC_CLIENT_PRIORITY_KMD_HIGH || + client->priority == GUC_CLIENT_PRIORITY_HIGH); +} + +static int __reserve_doorbell(struct intel_guc_client *client) +{ + unsigned long offset; + unsigned long end; + u16 id; + + GEM_BUG_ON(client->doorbell_id != GUC_DOORBELL_INVALID); + + /* + * The bitmap tracks which doorbell registers are currently in use. + * It is split into two halves; the first half is used for normal + * priority contexts, the second half for high-priority ones. + */ + offset = 0; + end = GUC_NUM_DOORBELLS / 2; + if (is_high_priority(client)) { + offset = end; + end += offset; + } + + id = find_next_zero_bit(client->guc->doorbell_bitmap, end, offset); + if (id == end) + return -ENOSPC; + + __set_bit(id, client->guc->doorbell_bitmap); + client->doorbell_id = id; + DRM_DEBUG_DRIVER("client %u (high prio=%s) reserved doorbell: %d\n", + client->stage_id, yesno(is_high_priority(client)), + id); + return 0; +} + +static void __unreserve_doorbell(struct intel_guc_client *client) +{ + GEM_BUG_ON(client->doorbell_id == GUC_DOORBELL_INVALID); + + __clear_bit(client->doorbell_id, client->guc->doorbell_bitmap); + client->doorbell_id = GUC_DOORBELL_INVALID; +} + +/* + * Tell the GuC to allocate or deallocate a specific doorbell + */ + +static int __guc_allocate_doorbell(struct intel_guc *guc, u32 stage_id) +{ + u32 action[] = { + INTEL_GUC_ACTION_ALLOCATE_DOORBELL, + stage_id + }; + + return intel_guc_send(guc, action, ARRAY_SIZE(action)); +} + +static int __guc_deallocate_doorbell(struct intel_guc *guc, u32 stage_id) +{ + u32 action[] = { + INTEL_GUC_ACTION_DEALLOCATE_DOORBELL, + stage_id + }; + + return intel_guc_send(guc, action, ARRAY_SIZE(action)); +} + +static struct guc_stage_desc *__get_stage_desc(struct intel_guc_client *client) +{ + struct guc_stage_desc *base = client->guc->stage_desc_pool_vaddr; + + return &base[client->stage_id]; +} + +/* + * Initialise, update, or clear doorbell data shared with the GuC + * + * These functions modify shared data and so need access to the mapped + * client object which contains the page being used for the doorbell + */ + +static void __update_doorbell_desc(struct intel_guc_client *client, u16 new_id) +{ + struct guc_stage_desc *desc; + + /* Update the GuC's idea of the doorbell ID */ + desc = __get_stage_desc(client); + desc->db_id = new_id; +} + +static struct guc_doorbell_info *__get_doorbell(struct intel_guc_client *client) +{ + return client->vaddr + client->doorbell_offset; +} + +static bool has_doorbell(struct intel_guc_client *client) +{ + if (client->doorbell_id == GUC_DOORBELL_INVALID) + return false; + + return test_bit(client->doorbell_id, client->guc->doorbell_bitmap); +} + +static int __create_doorbell(struct intel_guc_client *client) +{ + struct guc_doorbell_info *doorbell; + int err; + + doorbell = __get_doorbell(client); + doorbell->db_status = GUC_DOORBELL_ENABLED; + doorbell->cookie = 0; + + err = __guc_allocate_doorbell(client->guc, client->stage_id); + if (err) { + doorbell->db_status = GUC_DOORBELL_DISABLED; + DRM_ERROR("Couldn't create client %u doorbell: %d\n", + client->stage_id, err); + } + + return err; +} + +static int __destroy_doorbell(struct intel_guc_client *client) +{ + struct drm_i915_private *dev_priv = guc_to_i915(client->guc); + struct guc_doorbell_info *doorbell; + u16 db_id = client->doorbell_id; + + GEM_BUG_ON(db_id >= GUC_DOORBELL_INVALID); + + doorbell = __get_doorbell(client); + doorbell->db_status = GUC_DOORBELL_DISABLED; + doorbell->cookie = 0; + + /* Doorbell release flow requires that we wait for GEN8_DRB_VALID bit + * to go to zero after updating db_status before we call the GuC to + * release the doorbell + */ + if (wait_for_us(!(I915_READ(GEN8_DRBREGL(db_id)) & GEN8_DRB_VALID), 10)) + WARN_ONCE(true, "Doorbell never became invalid after disable\n"); + + return __guc_deallocate_doorbell(client->guc, client->stage_id); +} + +static int create_doorbell(struct intel_guc_client *client) +{ + int ret; + + ret = __reserve_doorbell(client); + if (ret) + return ret; + + __update_doorbell_desc(client, client->doorbell_id); + + ret = __create_doorbell(client); + if (ret) + goto err; + + return 0; + +err: + __update_doorbell_desc(client, GUC_DOORBELL_INVALID); + __unreserve_doorbell(client); + return ret; +} + +static int destroy_doorbell(struct intel_guc_client *client) +{ + int err; + + GEM_BUG_ON(!has_doorbell(client)); + + /* XXX: wait for any interrupts */ + /* XXX: wait for workqueue to drain */ + + err = __destroy_doorbell(client); + if (err) + return err; + + __update_doorbell_desc(client, GUC_DOORBELL_INVALID); + + __unreserve_doorbell(client); + + return 0; +} + +static unsigned long __select_cacheline(struct intel_guc *guc) +{ + unsigned long offset; + + /* Doorbell uses a single cache line within a page */ + offset = offset_in_page(guc->db_cacheline); + + /* Moving to next cache line to reduce contention */ + guc->db_cacheline += cache_line_size(); + + DRM_DEBUG_DRIVER("reserved cacheline 0x%lx, next 0x%x, linesize %u\n", + offset, guc->db_cacheline, cache_line_size()); + return offset; +} + +static inline struct guc_process_desc * +__get_process_desc(struct intel_guc_client *client) +{ + return client->vaddr + client->proc_desc_offset; +} + +/* + * Initialise the process descriptor shared with the GuC firmware. + */ +static void guc_proc_desc_init(struct intel_guc *guc, + struct intel_guc_client *client) +{ + struct guc_process_desc *desc; + + desc = memset(__get_process_desc(client), 0, sizeof(*desc)); + + /* + * XXX: pDoorbell and WQVBaseAddress are pointers in process address + * space for ring3 clients (set them as in mmap_ioctl) or kernel + * space for kernel clients (map on demand instead? May make debug + * easier to have it mapped). + */ + desc->wq_base_addr = 0; + desc->db_base_addr = 0; + + desc->stage_id = client->stage_id; + desc->wq_size_bytes = GUC_WQ_SIZE; + desc->wq_status = WQ_STATUS_ACTIVE; + desc->priority = client->priority; +} + +static int guc_stage_desc_pool_create(struct intel_guc *guc) +{ + struct i915_vma *vma; + void *vaddr; + + vma = intel_guc_allocate_vma(guc, + PAGE_ALIGN(sizeof(struct guc_stage_desc) * + GUC_MAX_STAGE_DESCRIPTORS)); + if (IS_ERR(vma)) + return PTR_ERR(vma); + + vaddr = i915_gem_object_pin_map(vma->obj, I915_MAP_WB); + if (IS_ERR(vaddr)) { + i915_vma_unpin_and_release(&vma); + return PTR_ERR(vaddr); + } + + guc->stage_desc_pool = vma; + guc->stage_desc_pool_vaddr = vaddr; + ida_init(&guc->stage_ids); + + return 0; +} + +static void guc_stage_desc_pool_destroy(struct intel_guc *guc) +{ + ida_destroy(&guc->stage_ids); + i915_gem_object_unpin_map(guc->stage_desc_pool->obj); + i915_vma_unpin_and_release(&guc->stage_desc_pool); +} + +/* + * Initialise/clear the stage descriptor shared with the GuC firmware. + * + * This descriptor tells the GuC where (in GGTT space) to find the important + * data structures relating to this client (doorbell, process descriptor, + * write queue, etc). + */ +static void guc_stage_desc_init(struct intel_guc *guc, + struct intel_guc_client *client) +{ + struct drm_i915_private *dev_priv = guc_to_i915(guc); + struct intel_engine_cs *engine; + struct i915_gem_context *ctx = client->owner; + struct guc_stage_desc *desc; + unsigned int tmp; + u32 gfx_addr; + + desc = __get_stage_desc(client); + memset(desc, 0, sizeof(*desc)); + + desc->attribute = GUC_STAGE_DESC_ATTR_ACTIVE | + GUC_STAGE_DESC_ATTR_KERNEL; + if (is_high_priority(client)) + desc->attribute |= GUC_STAGE_DESC_ATTR_PREEMPT; + desc->stage_id = client->stage_id; + desc->priority = client->priority; + desc->db_id = client->doorbell_id; + + for_each_engine_masked(engine, dev_priv, client->engines, tmp) { + struct intel_context *ce = &ctx->engine[engine->id]; + u32 guc_engine_id = engine->guc_id; + struct guc_execlist_context *lrc = &desc->lrc[guc_engine_id]; + + /* TODO: We have a design issue to be solved here. Only when we + * receive the first batch, we know which engine is used by the + * user. But here GuC expects the lrc and ring to be pinned. It + * is not an issue for default context, which is the only one + * for now who owns a GuC client. But for future owner of GuC + * client, need to make sure lrc is pinned prior to enter here. + */ + if (!ce->state) + break; /* XXX: continue? */ + + /* + * XXX: When this is a GUC_STAGE_DESC_ATTR_KERNEL client (proxy + * submission or, in other words, not using a direct submission + * model) the KMD's LRCA is not used for any work submission. + * Instead, the GuC uses the LRCA of the user mode context (see + * guc_add_request below). + */ + lrc->context_desc = lower_32_bits(ce->lrc_desc); + + /* The state page is after PPHWSP */ + lrc->ring_lrca = + guc_ggtt_offset(ce->state) + LRC_STATE_PN * PAGE_SIZE; + + /* XXX: In direct submission, the GuC wants the HW context id + * here. In proxy submission, it wants the stage id + */ + lrc->context_id = (client->stage_id << GUC_ELC_CTXID_OFFSET) | + (guc_engine_id << GUC_ELC_ENGINE_OFFSET); + + lrc->ring_begin = guc_ggtt_offset(ce->ring->vma); + lrc->ring_end = lrc->ring_begin + ce->ring->size - 1; + lrc->ring_next_free_location = lrc->ring_begin; + lrc->ring_current_tail_pointer_value = 0; + + desc->engines_used |= (1 << guc_engine_id); + } + + DRM_DEBUG_DRIVER("Host engines 0x%x => GuC engines used 0x%x\n", + client->engines, desc->engines_used); + WARN_ON(desc->engines_used == 0); + + /* + * The doorbell, process descriptor, and workqueue are all parts + * of the client object, which the GuC will reference via the GGTT + */ + gfx_addr = guc_ggtt_offset(client->vma); + desc->db_trigger_phy = sg_dma_address(client->vma->pages->sgl) + + client->doorbell_offset; + desc->db_trigger_cpu = ptr_to_u64(__get_doorbell(client)); + desc->db_trigger_uk = gfx_addr + client->doorbell_offset; + desc->process_desc = gfx_addr + client->proc_desc_offset; + desc->wq_addr = gfx_addr + GUC_DB_SIZE; + desc->wq_size = GUC_WQ_SIZE; + + desc->desc_private = ptr_to_u64(client); +} + +static void guc_stage_desc_fini(struct intel_guc *guc, + struct intel_guc_client *client) +{ + struct guc_stage_desc *desc; + + desc = __get_stage_desc(client); + memset(desc, 0, sizeof(*desc)); +} + +static int guc_shared_data_create(struct intel_guc *guc) +{ + struct i915_vma *vma; + void *vaddr; + + vma = intel_guc_allocate_vma(guc, PAGE_SIZE); + if (IS_ERR(vma)) + return PTR_ERR(vma); + + vaddr = i915_gem_object_pin_map(vma->obj, I915_MAP_WB); + if (IS_ERR(vaddr)) { + i915_vma_unpin_and_release(&vma); + return PTR_ERR(vaddr); + } + + guc->shared_data = vma; + guc->shared_data_vaddr = vaddr; + + return 0; +} + +static void guc_shared_data_destroy(struct intel_guc *guc) +{ + i915_gem_object_unpin_map(guc->shared_data->obj); + i915_vma_unpin_and_release(&guc->shared_data); +} + +/* Construct a Work Item and append it to the GuC's Work Queue */ +static void guc_wq_item_append(struct intel_guc_client *client, + u32 target_engine, u32 context_desc, + u32 ring_tail, u32 fence_id) +{ + /* wqi_len is in DWords, and does not include the one-word header */ + const size_t wqi_size = sizeof(struct guc_wq_item); + const u32 wqi_len = wqi_size / sizeof(u32) - 1; + struct guc_process_desc *desc = __get_process_desc(client); + struct guc_wq_item *wqi; + u32 wq_off; + + lockdep_assert_held(&client->wq_lock); + + /* For now workqueue item is 4 DWs; workqueue buffer is 2 pages. So we + * should not have the case where structure wqi is across page, neither + * wrapped to the beginning. This simplifies the implementation below. + * + * XXX: if not the case, we need save data to a temp wqi and copy it to + * workqueue buffer dw by dw. + */ + BUILD_BUG_ON(wqi_size != 16); + + /* Free space is guaranteed. */ + wq_off = READ_ONCE(desc->tail); + GEM_BUG_ON(CIRC_SPACE(wq_off, READ_ONCE(desc->head), + GUC_WQ_SIZE) < wqi_size); + GEM_BUG_ON(wq_off & (wqi_size - 1)); + + /* WQ starts from the page after doorbell / process_desc */ + wqi = client->vaddr + wq_off + GUC_DB_SIZE; + + /* Now fill in the 4-word work queue item */ + wqi->header = WQ_TYPE_INORDER | + (wqi_len << WQ_LEN_SHIFT) | + (target_engine << WQ_TARGET_SHIFT) | + WQ_NO_WCFLUSH_WAIT; + wqi->context_desc = context_desc; + wqi->submit_element_info = ring_tail << WQ_RING_TAIL_SHIFT; + GEM_BUG_ON(ring_tail > WQ_RING_TAIL_MAX); + wqi->fence_id = fence_id; + + /* Make the update visible to GuC */ + WRITE_ONCE(desc->tail, (wq_off + wqi_size) & (GUC_WQ_SIZE - 1)); +} + +static void guc_reset_wq(struct intel_guc_client *client) +{ + struct guc_process_desc *desc = __get_process_desc(client); + + desc->head = 0; + desc->tail = 0; +} + +static void guc_ring_doorbell(struct intel_guc_client *client) +{ + struct guc_doorbell_info *db; + u32 cookie; + + lockdep_assert_held(&client->wq_lock); + + /* pointer of current doorbell cacheline */ + db = __get_doorbell(client); + + /* + * We're not expecting the doorbell cookie to change behind our back, + * we also need to treat 0 as a reserved value. + */ + cookie = READ_ONCE(db->cookie); + WARN_ON_ONCE(xchg(&db->cookie, cookie + 1 ?: cookie + 2) != cookie); + + /* XXX: doorbell was lost and need to acquire it again */ + GEM_BUG_ON(db->db_status != GUC_DOORBELL_ENABLED); +} + +static void guc_add_request(struct intel_guc *guc, + struct drm_i915_gem_request *rq) +{ + struct intel_guc_client *client = guc->execbuf_client; + struct intel_engine_cs *engine = rq->engine; + u32 ctx_desc = lower_32_bits(intel_lr_context_descriptor(rq->ctx, + engine)); + u32 ring_tail = intel_ring_set_tail(rq->ring, rq->tail) / sizeof(u64); + + spin_lock(&client->wq_lock); + + guc_wq_item_append(client, engine->guc_id, ctx_desc, + ring_tail, rq->global_seqno); + guc_ring_doorbell(client); + + client->submissions[engine->id] += 1; + + spin_unlock(&client->wq_lock); +} + +/* + * When we're doing submissions using regular execlists backend, writing to + * ELSP from CPU side is enough to make sure that writes to ringbuffer pages + * pinned in mappable aperture portion of GGTT are visible to command streamer. + * Writes done by GuC on our behalf are not guaranteeing such ordering, + * therefore, to ensure the flush, we're issuing a POSTING READ. + */ +static void flush_ggtt_writes(struct i915_vma *vma) +{ + struct drm_i915_private *dev_priv = to_i915(vma->obj->base.dev); + + if (i915_vma_is_map_and_fenceable(vma)) + POSTING_READ_FW(GUC_STATUS); +} + +#define GUC_PREEMPT_FINISHED 0x1 +#define GUC_PREEMPT_BREADCRUMB_DWORDS 0x8 +static void inject_preempt_context(struct work_struct *work) +{ + struct guc_preempt_work *preempt_work = + container_of(work, typeof(*preempt_work), work); + struct intel_engine_cs *engine = preempt_work->engine; + struct intel_guc *guc = container_of(preempt_work, typeof(*guc), + preempt_work[engine->id]); + struct intel_guc_client *client = guc->preempt_client; + struct guc_stage_desc *stage_desc = __get_stage_desc(client); + struct intel_ring *ring = client->owner->engine[engine->id].ring; + u32 ctx_desc = lower_32_bits(intel_lr_context_descriptor(client->owner, + engine)); + u32 *cs = ring->vaddr + ring->tail; + u32 data[7]; + + if (engine->id == RCS) { + cs = gen8_emit_ggtt_write_rcs(cs, GUC_PREEMPT_FINISHED, + intel_hws_preempt_done_address(engine)); + } else { + cs = gen8_emit_ggtt_write(cs, GUC_PREEMPT_FINISHED, + intel_hws_preempt_done_address(engine)); + *cs++ = MI_NOOP; + *cs++ = MI_NOOP; + } + *cs++ = MI_USER_INTERRUPT; + *cs++ = MI_NOOP; + + GEM_BUG_ON(!IS_ALIGNED(ring->size, + GUC_PREEMPT_BREADCRUMB_DWORDS * sizeof(u32))); + GEM_BUG_ON((void *)cs - (ring->vaddr + ring->tail) != + GUC_PREEMPT_BREADCRUMB_DWORDS * sizeof(u32)); + + ring->tail += GUC_PREEMPT_BREADCRUMB_DWORDS * sizeof(u32); + ring->tail &= (ring->size - 1); + + flush_ggtt_writes(ring->vma); + + spin_lock_irq(&client->wq_lock); + guc_wq_item_append(client, engine->guc_id, ctx_desc, + ring->tail / sizeof(u64), 0); + spin_unlock_irq(&client->wq_lock); + + /* + * If GuC firmware performs an engine reset while that engine had + * a preemption pending, it will set the terminated attribute bit + * on our preemption stage descriptor. GuC firmware retains all + * pending work items for a high-priority GuC client, unlike the + * normal-priority GuC client where work items are dropped. It + * wants to make sure the preempt-to-idle work doesn't run when + * scheduling resumes, and uses this bit to inform its scheduler + * and presumably us as well. Our job is to clear it for the next + * preemption after reset, otherwise that and future preemptions + * will never complete. We'll just clear it every time. + */ + stage_desc->attribute &= ~GUC_STAGE_DESC_ATTR_TERMINATED; + + data[0] = INTEL_GUC_ACTION_REQUEST_PREEMPTION; + data[1] = client->stage_id; + data[2] = INTEL_GUC_PREEMPT_OPTION_DROP_WORK_Q | + INTEL_GUC_PREEMPT_OPTION_DROP_SUBMIT_Q; + data[3] = engine->guc_id; + data[4] = guc->execbuf_client->priority; + data[5] = guc->execbuf_client->stage_id; + data[6] = guc_ggtt_offset(guc->shared_data); + + if (WARN_ON(intel_guc_send(guc, data, ARRAY_SIZE(data)))) { + execlists_clear_active(&engine->execlists, + EXECLISTS_ACTIVE_PREEMPT); + tasklet_schedule(&engine->execlists.tasklet); + } +} + +/* + * We're using user interrupt and HWSP value to mark that preemption has + * finished and GPU is idle. Normally, we could unwind and continue similar to + * execlists submission path. Unfortunately, with GuC we also need to wait for + * it to finish its own postprocessing, before attempting to submit. Otherwise + * GuC may silently ignore our submissions, and thus we risk losing request at + * best, executing out-of-order and causing kernel panic at worst. + */ +#define GUC_PREEMPT_POSTPROCESS_DELAY_MS 10 +static void wait_for_guc_preempt_report(struct intel_engine_cs *engine) +{ + struct intel_guc *guc = &engine->i915->guc; + struct guc_shared_ctx_data *data = guc->shared_data_vaddr; + struct guc_ctx_report *report = + &data->preempt_ctx_report[engine->guc_id]; + + WARN_ON(wait_for_atomic(report->report_return_status == + INTEL_GUC_REPORT_STATUS_COMPLETE, + GUC_PREEMPT_POSTPROCESS_DELAY_MS)); + /* + * GuC is expecting that we're also going to clear the affected context + * counter, let's also reset the return status to not depend on GuC + * resetting it after recieving another preempt action + */ + report->affected_count = 0; + report->report_return_status = INTEL_GUC_REPORT_STATUS_UNKNOWN; +} + +/** + * guc_submit() - Submit commands through GuC + * @engine: engine associated with the commands + * + * The only error here arises if the doorbell hardware isn't functioning + * as expected, which really shouln't happen. + */ +static void guc_submit(struct intel_engine_cs *engine) +{ + struct intel_guc *guc = &engine->i915->guc; + struct intel_engine_execlists * const execlists = &engine->execlists; + struct execlist_port *port = execlists->port; + unsigned int n; + + for (n = 0; n < execlists_num_ports(execlists); n++) { + struct drm_i915_gem_request *rq; + unsigned int count; + + rq = port_unpack(&port[n], &count); + if (rq && count == 0) { + port_set(&port[n], port_pack(rq, ++count)); + + flush_ggtt_writes(rq->ring->vma); + + guc_add_request(guc, rq); + } + } +} + +static void port_assign(struct execlist_port *port, + struct drm_i915_gem_request *rq) +{ + GEM_BUG_ON(rq == port_request(port)); + + if (port_isset(port)) + i915_gem_request_put(port_request(port)); + + port_set(port, port_pack(i915_gem_request_get(rq), port_count(port))); +} + +static void guc_dequeue(struct intel_engine_cs *engine) +{ + struct intel_engine_execlists * const execlists = &engine->execlists; + struct execlist_port *port = execlists->port; + struct drm_i915_gem_request *last = NULL; + const struct execlist_port * const last_port = + &execlists->port[execlists->port_mask]; + bool submit = false; + struct rb_node *rb; + + spin_lock_irq(&engine->timeline->lock); + rb = execlists->first; + GEM_BUG_ON(rb_first(&execlists->queue) != rb); + + if (!rb) + goto unlock; + + if (HAS_LOGICAL_RING_PREEMPTION(engine->i915) && port_isset(port)) { + struct guc_preempt_work *preempt_work = + &engine->i915->guc.preempt_work[engine->id]; + + if (rb_entry(rb, struct i915_priolist, node)->priority > + max(port_request(port)->priotree.priority, 0)) { + execlists_set_active(execlists, + EXECLISTS_ACTIVE_PREEMPT); + queue_work(engine->i915->guc.preempt_wq, + &preempt_work->work); + goto unlock; + } else if (port_isset(last_port)) { + goto unlock; + } + + port++; + } + + do { + struct i915_priolist *p = rb_entry(rb, typeof(*p), node); + struct drm_i915_gem_request *rq, *rn; + + list_for_each_entry_safe(rq, rn, &p->requests, priotree.link) { + if (last && rq->ctx != last->ctx) { + if (port == last_port) { + __list_del_many(&p->requests, + &rq->priotree.link); + goto done; + } + + if (submit) + port_assign(port, last); + port++; + } + + INIT_LIST_HEAD(&rq->priotree.link); + + __i915_gem_request_submit(rq); + trace_i915_gem_request_in(rq, + port_index(port, execlists)); + last = rq; + submit = true; + } + + rb = rb_next(rb); + rb_erase(&p->node, &execlists->queue); + INIT_LIST_HEAD(&p->requests); + if (p->priority != I915_PRIORITY_NORMAL) + kmem_cache_free(engine->i915->priorities, p); + } while (rb); +done: + execlists->first = rb; + if (submit) { + port_assign(port, last); + execlists_set_active(execlists, EXECLISTS_ACTIVE_USER); + guc_submit(engine); + } +unlock: + spin_unlock_irq(&engine->timeline->lock); +} + +static void guc_submission_tasklet(unsigned long data) +{ + struct intel_engine_cs * const engine = (struct intel_engine_cs *)data; + struct intel_engine_execlists * const execlists = &engine->execlists; + struct execlist_port *port = execlists->port; + struct drm_i915_gem_request *rq; + + rq = port_request(&port[0]); + while (rq && i915_gem_request_completed(rq)) { + trace_i915_gem_request_out(rq); + i915_gem_request_put(rq); + + execlists_port_complete(execlists, port); + + rq = port_request(&port[0]); + } + if (!rq) + execlists_clear_active(execlists, EXECLISTS_ACTIVE_USER); + + if (execlists_is_active(execlists, EXECLISTS_ACTIVE_PREEMPT) && + intel_read_status_page(engine, I915_GEM_HWS_PREEMPT_INDEX) == + GUC_PREEMPT_FINISHED) { + execlists_cancel_port_requests(&engine->execlists); + execlists_unwind_incomplete_requests(execlists); + + wait_for_guc_preempt_report(engine); + + execlists_clear_active(execlists, EXECLISTS_ACTIVE_PREEMPT); + intel_write_status_page(engine, I915_GEM_HWS_PREEMPT_INDEX, 0); + } + + if (!execlists_is_active(execlists, EXECLISTS_ACTIVE_PREEMPT)) + guc_dequeue(engine); +} + +/* + * Everything below here is concerned with setup & teardown, and is + * therefore not part of the somewhat time-critical batch-submission + * path of guc_submit() above. + */ + +/* Check that a doorbell register is in the expected state */ +static bool doorbell_ok(struct intel_guc *guc, u16 db_id) +{ + struct drm_i915_private *dev_priv = guc_to_i915(guc); + u32 drbregl; + bool valid; + + GEM_BUG_ON(db_id >= GUC_DOORBELL_INVALID); + + drbregl = I915_READ(GEN8_DRBREGL(db_id)); + valid = drbregl & GEN8_DRB_VALID; + + if (test_bit(db_id, guc->doorbell_bitmap) == valid) + return true; + + DRM_DEBUG_DRIVER("Doorbell %d has unexpected state (0x%x): valid=%s\n", + db_id, drbregl, yesno(valid)); + + return false; +} + +/* + * If the GuC thinks that the doorbell is unassigned (e.g. because we reset and + * reloaded the GuC FW) we can use this function to tell the GuC to reassign the + * doorbell to the rightful owner. + */ +static int __reset_doorbell(struct intel_guc_client *client, u16 db_id) +{ + int err; + + __update_doorbell_desc(client, db_id); + err = __create_doorbell(client); + if (!err) + err = __destroy_doorbell(client); + + return err; +} + +/* + * Set up & tear down each unused doorbell in turn, to ensure that all doorbell + * HW is (re)initialised. For that end, we might have to borrow the first + * client. Also, tell GuC about all the doorbells in use by all clients. + * We do this because the KMD, the GuC and the doorbell HW can easily go out of + * sync (e.g. we can reset the GuC, but not the doorbel HW). + */ +static int guc_init_doorbell_hw(struct intel_guc *guc) +{ + struct intel_guc_client *client = guc->execbuf_client; + bool recreate_first_client = false; + u16 db_id; + int ret; + + /* For unused doorbells, make sure they are disabled */ + for_each_clear_bit(db_id, guc->doorbell_bitmap, GUC_NUM_DOORBELLS) { + if (doorbell_ok(guc, db_id)) + continue; + + if (has_doorbell(client)) { + /* Borrow execbuf_client (we will recreate it later) */ + destroy_doorbell(client); + recreate_first_client = true; + } + + ret = __reset_doorbell(client, db_id); + WARN(ret, "Doorbell %u reset failed, err %d\n", db_id, ret); + } + + if (recreate_first_client) { + ret = __reserve_doorbell(client); + if (unlikely(ret)) { + DRM_ERROR("Couldn't re-reserve first client db: %d\n", + ret); + return ret; + } + + __update_doorbell_desc(client, client->doorbell_id); + } + + /* Now for every client (and not only execbuf_client) make sure their + * doorbells are known by the GuC + */ + ret = __create_doorbell(guc->execbuf_client); + if (ret) + return ret; + + ret = __create_doorbell(guc->preempt_client); + if (ret) { + __destroy_doorbell(guc->execbuf_client); + return ret; + } + + /* Read back & verify all (used & unused) doorbell registers */ + for (db_id = 0; db_id < GUC_NUM_DOORBELLS; ++db_id) + WARN_ON(!doorbell_ok(guc, db_id)); + + return 0; +} + +/** + * guc_client_alloc() - Allocate an intel_guc_client + * @dev_priv: driver private data structure + * @engines: The set of engines to enable for this client + * @priority: four levels priority _CRITICAL, _HIGH, _NORMAL and _LOW + * The kernel client to replace ExecList submission is created with + * NORMAL priority. Priority of a client for scheduler can be HIGH, + * while a preemption context can use CRITICAL. + * @ctx: the context that owns the client (we use the default render + * context) + * + * Return: An intel_guc_client object if success, else NULL. + */ +static struct intel_guc_client * +guc_client_alloc(struct drm_i915_private *dev_priv, + u32 engines, + u32 priority, + struct i915_gem_context *ctx) +{ + struct intel_guc_client *client; + struct intel_guc *guc = &dev_priv->guc; + struct i915_vma *vma; + void *vaddr; + int ret; + + client = kzalloc(sizeof(*client), GFP_KERNEL); + if (!client) + return ERR_PTR(-ENOMEM); + + client->guc = guc; + client->owner = ctx; + client->engines = engines; + client->priority = priority; + client->doorbell_id = GUC_DOORBELL_INVALID; + spin_lock_init(&client->wq_lock); + + ret = ida_simple_get(&guc->stage_ids, 0, GUC_MAX_STAGE_DESCRIPTORS, + GFP_KERNEL); + if (ret < 0) + goto err_client; + + client->stage_id = ret; + + /* The first page is doorbell/proc_desc. Two followed pages are wq. */ + vma = intel_guc_allocate_vma(guc, GUC_DB_SIZE + GUC_WQ_SIZE); + if (IS_ERR(vma)) { + ret = PTR_ERR(vma); + goto err_id; + } + + /* We'll keep just the first (doorbell/proc) page permanently kmap'd. */ + client->vma = vma; + + vaddr = i915_gem_object_pin_map(vma->obj, I915_MAP_WB); + if (IS_ERR(vaddr)) { + ret = PTR_ERR(vaddr); + goto err_vma; + } + client->vaddr = vaddr; + + client->doorbell_offset = __select_cacheline(guc); + + /* + * Since the doorbell only requires a single cacheline, we can save + * space by putting the application process descriptor in the same + * page. Use the half of the page that doesn't include the doorbell. + */ + if (client->doorbell_offset >= (GUC_DB_SIZE / 2)) + client->proc_desc_offset = 0; + else + client->proc_desc_offset = (GUC_DB_SIZE / 2); + + guc_proc_desc_init(guc, client); + guc_stage_desc_init(guc, client); + + ret = create_doorbell(client); + if (ret) + goto err_vaddr; + + DRM_DEBUG_DRIVER("new priority %u client %p for engine(s) 0x%x: stage_id %u\n", + priority, client, client->engines, client->stage_id); + DRM_DEBUG_DRIVER("doorbell id %u, cacheline offset 0x%lx\n", + client->doorbell_id, client->doorbell_offset); + + return client; + +err_vaddr: + i915_gem_object_unpin_map(client->vma->obj); +err_vma: + i915_vma_unpin_and_release(&client->vma); +err_id: + ida_simple_remove(&guc->stage_ids, client->stage_id); +err_client: + kfree(client); + return ERR_PTR(ret); +} + +static void guc_client_free(struct intel_guc_client *client) +{ + /* + * XXX: wait for any outstanding submissions before freeing memory. + * Be sure to drop any locks + */ + + /* FIXME: in many cases, by the time we get here the GuC has been + * reset, so we cannot destroy the doorbell properly. Ignore the + * error message for now + */ + destroy_doorbell(client); + guc_stage_desc_fini(client->guc, client); + i915_gem_object_unpin_map(client->vma->obj); + i915_vma_unpin_and_release(&client->vma); + ida_simple_remove(&client->guc->stage_ids, client->stage_id); + kfree(client); +} + +static int guc_clients_create(struct intel_guc *guc) +{ + struct drm_i915_private *dev_priv = guc_to_i915(guc); + struct intel_guc_client *client; + + GEM_BUG_ON(guc->execbuf_client); + GEM_BUG_ON(guc->preempt_client); + + client = guc_client_alloc(dev_priv, + INTEL_INFO(dev_priv)->ring_mask, + GUC_CLIENT_PRIORITY_KMD_NORMAL, + dev_priv->kernel_context); + if (IS_ERR(client)) { + DRM_ERROR("Failed to create GuC client for submission!\n"); + return PTR_ERR(client); + } + guc->execbuf_client = client; + + client = guc_client_alloc(dev_priv, + INTEL_INFO(dev_priv)->ring_mask, + GUC_CLIENT_PRIORITY_KMD_HIGH, + dev_priv->preempt_context); + if (IS_ERR(client)) { + DRM_ERROR("Failed to create GuC client for preemption!\n"); + guc_client_free(guc->execbuf_client); + guc->execbuf_client = NULL; + return PTR_ERR(client); + } + guc->preempt_client = client; + + return 0; +} + +static void guc_clients_destroy(struct intel_guc *guc) +{ + struct intel_guc_client *client; + + client = fetch_and_zero(&guc->execbuf_client); + guc_client_free(client); + + client = fetch_and_zero(&guc->preempt_client); + guc_client_free(client); +} + +static void guc_policy_init(struct guc_policy *policy) +{ + policy->execution_quantum = POLICY_DEFAULT_EXECUTION_QUANTUM_US; + policy->preemption_time = POLICY_DEFAULT_PREEMPTION_TIME_US; + policy->fault_time = POLICY_DEFAULT_FAULT_TIME_US; + policy->policy_flags = 0; +} + +static void guc_policies_init(struct guc_policies *policies) +{ + struct guc_policy *policy; + u32 p, i; + + policies->dpc_promote_time = POLICY_DEFAULT_DPC_PROMOTE_TIME_US; + policies->max_num_work_items = POLICY_MAX_NUM_WI; + + for (p = 0; p < GUC_CLIENT_PRIORITY_NUM; p++) { + for (i = GUC_RENDER_ENGINE; i < GUC_MAX_ENGINES_NUM; i++) { + policy = &policies->policy[p][i]; + + guc_policy_init(policy); + } + } + + policies->is_valid = 1; +} + +/* + * The first 80 dwords of the register state context, containing the + * execlists and ppgtt registers. + */ +#define LR_HW_CONTEXT_SIZE (80 * sizeof(u32)) + +static int guc_ads_create(struct intel_guc *guc) +{ + struct drm_i915_private *dev_priv = guc_to_i915(guc); + struct i915_vma *vma; + struct page *page; + /* The ads obj includes the struct itself and buffers passed to GuC */ + struct { + struct guc_ads ads; + struct guc_policies policies; + struct guc_mmio_reg_state reg_state; + u8 reg_state_buffer[GUC_S3_SAVE_SPACE_PAGES * PAGE_SIZE]; + } __packed *blob; + struct intel_engine_cs *engine; + enum intel_engine_id id; + const u32 skipped_offset = LRC_HEADER_PAGES * PAGE_SIZE; + const u32 skipped_size = LRC_PPHWSP_SZ * PAGE_SIZE + LR_HW_CONTEXT_SIZE; + u32 base; + + GEM_BUG_ON(guc->ads_vma); + + vma = intel_guc_allocate_vma(guc, PAGE_ALIGN(sizeof(*blob))); + if (IS_ERR(vma)) + return PTR_ERR(vma); + + guc->ads_vma = vma; + + page = i915_vma_first_page(vma); + blob = kmap(page); + + /* GuC scheduling policies */ + guc_policies_init(&blob->policies); + + /* MMIO reg state */ + for_each_engine(engine, dev_priv, id) { + blob->reg_state.white_list[engine->guc_id].mmio_start = + engine->mmio_base + GUC_MMIO_WHITE_LIST_START; + + /* Nothing to be saved or restored for now. */ + blob->reg_state.white_list[engine->guc_id].count = 0; + } + + /* + * The GuC requires a "Golden Context" when it reinitialises + * engines after a reset. Here we use the Render ring default + * context, which must already exist and be pinned in the GGTT, + * so its address won't change after we've told the GuC where + * to find it. Note that we have to skip our header (1 page), + * because our GuC shared data is there. + */ + blob->ads.golden_context_lrca = + guc_ggtt_offset(dev_priv->kernel_context->engine[RCS].state) + + skipped_offset; + + /* + * The GuC expects us to exclude the portion of the context image that + * it skips from the size it is to read. It starts reading from after + * the execlist context (so skipping the first page [PPHWSP] and 80 + * dwords). Weird guc is weird. + */ + for_each_engine(engine, dev_priv, id) + blob->ads.eng_state_size[engine->guc_id] = + engine->context_size - skipped_size; + + base = guc_ggtt_offset(vma); + blob->ads.scheduler_policies = base + ptr_offset(blob, policies); + blob->ads.reg_state_buffer = base + ptr_offset(blob, reg_state_buffer); + blob->ads.reg_state_addr = base + ptr_offset(blob, reg_state); + + kunmap(page); + + return 0; +} + +static void guc_ads_destroy(struct intel_guc *guc) +{ + i915_vma_unpin_and_release(&guc->ads_vma); +} + +static int guc_preempt_work_create(struct intel_guc *guc) +{ + struct drm_i915_private *dev_priv = guc_to_i915(guc); + struct intel_engine_cs *engine; + enum intel_engine_id id; + + /* + * Even though both sending GuC action, and adding a new workitem to + * GuC workqueue are serialized (each with its own locking), since + * we're using mutliple engines, it's possible that we're going to + * issue a preempt request with two (or more - each for different + * engine) workitems in GuC queue. In this situation, GuC may submit + * all of them, which will make us very confused. + * Our preemption contexts may even already be complete - before we + * even had the chance to sent the preempt action to GuC!. Rather + * than introducing yet another lock, we can just use ordered workqueue + * to make sure we're always sending a single preemption request with a + * single workitem. + */ + guc->preempt_wq = alloc_ordered_workqueue("i915-guc_preempt", + WQ_HIGHPRI); + if (!guc->preempt_wq) + return -ENOMEM; + + for_each_engine(engine, dev_priv, id) { + guc->preempt_work[id].engine = engine; + INIT_WORK(&guc->preempt_work[id].work, inject_preempt_context); + } + + return 0; +} + +static void guc_preempt_work_destroy(struct intel_guc *guc) +{ + struct drm_i915_private *dev_priv = guc_to_i915(guc); + struct intel_engine_cs *engine; + enum intel_engine_id id; + + for_each_engine(engine, dev_priv, id) + cancel_work_sync(&guc->preempt_work[id].work); + + destroy_workqueue(guc->preempt_wq); + guc->preempt_wq = NULL; +} + +/* + * Set up the memory resources to be shared with the GuC (via the GGTT) + * at firmware loading time. + */ +int intel_guc_submission_init(struct intel_guc *guc) +{ + int ret; + + if (guc->stage_desc_pool) + return 0; + + ret = guc_stage_desc_pool_create(guc); + if (ret) + return ret; + /* + * Keep static analysers happy, let them know that we allocated the + * vma after testing that it didn't exist earlier. + */ + GEM_BUG_ON(!guc->stage_desc_pool); + + ret = guc_shared_data_create(guc); + if (ret) + goto err_stage_desc_pool; + GEM_BUG_ON(!guc->shared_data); + + ret = intel_guc_log_create(guc); + if (ret < 0) + goto err_shared_data; + + ret = guc_preempt_work_create(guc); + if (ret) + goto err_log; + GEM_BUG_ON(!guc->preempt_wq); + + ret = guc_ads_create(guc); + if (ret < 0) + goto err_wq; + GEM_BUG_ON(!guc->ads_vma); + + return 0; + +err_wq: + guc_preempt_work_destroy(guc); +err_log: + intel_guc_log_destroy(guc); +err_shared_data: + guc_shared_data_destroy(guc); +err_stage_desc_pool: + guc_stage_desc_pool_destroy(guc); + return ret; +} + +void intel_guc_submission_fini(struct intel_guc *guc) +{ + guc_ads_destroy(guc); + guc_preempt_work_destroy(guc); + intel_guc_log_destroy(guc); + guc_shared_data_destroy(guc); + guc_stage_desc_pool_destroy(guc); +} + +static void guc_interrupts_capture(struct drm_i915_private *dev_priv) +{ + struct intel_rps *rps = &dev_priv->gt_pm.rps; + struct intel_engine_cs *engine; + enum intel_engine_id id; + int irqs; + + /* tell all command streamers to forward interrupts (but not vblank) + * to GuC + */ + irqs = _MASKED_BIT_ENABLE(GFX_INTERRUPT_STEERING); + for_each_engine(engine, dev_priv, id) + I915_WRITE(RING_MODE_GEN7(engine), irqs); + + /* route USER_INTERRUPT to Host, all others are sent to GuC. */ + irqs = GT_RENDER_USER_INTERRUPT << GEN8_RCS_IRQ_SHIFT | + GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT; + /* These three registers have the same bit definitions */ + I915_WRITE(GUC_BCS_RCS_IER, ~irqs); + I915_WRITE(GUC_VCS2_VCS1_IER, ~irqs); + I915_WRITE(GUC_WD_VECS_IER, ~irqs); + + /* + * The REDIRECT_TO_GUC bit of the PMINTRMSK register directs all + * (unmasked) PM interrupts to the GuC. All other bits of this + * register *disable* generation of a specific interrupt. + * + * 'pm_intrmsk_mbz' indicates bits that are NOT to be set when + * writing to the PM interrupt mask register, i.e. interrupts + * that must not be disabled. + * + * If the GuC is handling these interrupts, then we must not let + * the PM code disable ANY interrupt that the GuC is expecting. + * So for each ENABLED (0) bit in this register, we must SET the + * bit in pm_intrmsk_mbz so that it's left enabled for the GuC. + * GuC needs ARAT expired interrupt unmasked hence it is set in + * pm_intrmsk_mbz. + * + * Here we CLEAR REDIRECT_TO_GUC bit in pm_intrmsk_mbz, which will + * result in the register bit being left SET! + */ + rps->pm_intrmsk_mbz |= ARAT_EXPIRED_INTRMSK; + rps->pm_intrmsk_mbz &= ~GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC; +} + +static void guc_interrupts_release(struct drm_i915_private *dev_priv) +{ + struct intel_rps *rps = &dev_priv->gt_pm.rps; + struct intel_engine_cs *engine; + enum intel_engine_id id; + int irqs; + + /* + * tell all command streamers NOT to forward interrupts or vblank + * to GuC. + */ + irqs = _MASKED_FIELD(GFX_FORWARD_VBLANK_MASK, GFX_FORWARD_VBLANK_NEVER); + irqs |= _MASKED_BIT_DISABLE(GFX_INTERRUPT_STEERING); + for_each_engine(engine, dev_priv, id) + I915_WRITE(RING_MODE_GEN7(engine), irqs); + + /* route all GT interrupts to the host */ + I915_WRITE(GUC_BCS_RCS_IER, 0); + I915_WRITE(GUC_VCS2_VCS1_IER, 0); + I915_WRITE(GUC_WD_VECS_IER, 0); + + rps->pm_intrmsk_mbz |= GEN8_PMINTR_DISABLE_REDIRECT_TO_GUC; + rps->pm_intrmsk_mbz &= ~ARAT_EXPIRED_INTRMSK; +} + +static void guc_submission_park(struct intel_engine_cs *engine) +{ + intel_engine_unpin_breadcrumbs_irq(engine); +} + +static void guc_submission_unpark(struct intel_engine_cs *engine) +{ + intel_engine_pin_breadcrumbs_irq(engine); +} + +int intel_guc_submission_enable(struct intel_guc *guc) +{ + struct drm_i915_private *dev_priv = guc_to_i915(guc); + struct intel_engine_cs *engine; + enum intel_engine_id id; + int err; + + /* + * We're using GuC work items for submitting work through GuC. Since + * we're coalescing multiple requests from a single context into a + * single work item prior to assigning it to execlist_port, we can + * never have more work items than the total number of ports (for all + * engines). The GuC firmware is controlling the HEAD of work queue, + * and it is guaranteed that it will remove the work item from the + * queue before our request is completed. + */ + BUILD_BUG_ON(ARRAY_SIZE(engine->execlists.port) * + sizeof(struct guc_wq_item) * + I915_NUM_ENGINES > GUC_WQ_SIZE); + + /* + * We're being called on both module initialization and on reset, + * until this flow is changed, we're using regular client presence to + * determine which case are we in, and whether we should allocate new + * clients or just reset their workqueues. + */ + if (!guc->execbuf_client) { + err = guc_clients_create(guc); + if (err) + return err; + } else { + guc_reset_wq(guc->execbuf_client); + guc_reset_wq(guc->preempt_client); + } + + err = intel_guc_sample_forcewake(guc); + if (err) + goto err_free_clients; + + err = guc_init_doorbell_hw(guc); + if (err) + goto err_free_clients; + + /* Take over from manual control of ELSP (execlists) */ + guc_interrupts_capture(dev_priv); + + for_each_engine(engine, dev_priv, id) { + struct intel_engine_execlists * const execlists = + &engine->execlists; + + execlists->tasklet.func = guc_submission_tasklet; + engine->park = guc_submission_park; + engine->unpark = guc_submission_unpark; + } + + return 0; + +err_free_clients: + guc_clients_destroy(guc); + return err; +} + +void intel_guc_submission_disable(struct intel_guc *guc) +{ + struct drm_i915_private *dev_priv = guc_to_i915(guc); + + GEM_BUG_ON(dev_priv->gt.awake); /* GT should be parked first */ + + guc_interrupts_release(dev_priv); + + /* Revert back to manual ELSP submission */ + intel_engines_reset_default_submission(dev_priv); + + guc_clients_destroy(guc); +} diff --git a/drivers/gpu/drm/i915/intel_guc_submission.h b/drivers/gpu/drm/i915/intel_guc_submission.h new file mode 100644 index 000000000000..e901192ee469 --- /dev/null +++ b/drivers/gpu/drm/i915/intel_guc_submission.h @@ -0,0 +1,81 @@ +/* + * Copyright © 2014-2017 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + */ + +#ifndef _I915_GUC_SUBMISSION_H_ +#define _I915_GUC_SUBMISSION_H_ + +#include + +#include "i915_gem.h" + +struct drm_i915_private; + +/* + * This structure primarily describes the GEM object shared with the GuC. + * The specs sometimes refer to this object as a "GuC context", but we use + * the term "client" to avoid confusion with hardware contexts. This + * GEM object is held for the entire lifetime of our interaction with + * the GuC, being allocated before the GuC is loaded with its firmware. + * Because there's no way to update the address used by the GuC after + * initialisation, the shared object must stay pinned into the GGTT as + * long as the GuC is in use. We also keep the first page (only) mapped + * into kernel address space, as it includes shared data that must be + * updated on every request submission. + * + * The single GEM object described here is actually made up of several + * separate areas, as far as the GuC is concerned. The first page (kept + * kmap'd) includes the "process descriptor" which holds sequence data for + * the doorbell, and one cacheline which actually *is* the doorbell; a + * write to this will "ring the doorbell" (i.e. send an interrupt to the + * GuC). The subsequent pages of the client object constitute the work + * queue (a circular array of work items), again described in the process + * descriptor. Work queue pages are mapped momentarily as required. + */ +struct intel_guc_client { + struct i915_vma *vma; + void *vaddr; + struct i915_gem_context *owner; + struct intel_guc *guc; + + /* bitmap of (host) engine ids */ + u32 engines; + u32 priority; + u32 stage_id; + u32 proc_desc_offset; + + u16 doorbell_id; + unsigned long doorbell_offset; + + /* Protects GuC client's WQ access */ + spinlock_t wq_lock; + /* Per-engine counts of GuC submissions */ + u64 submissions[I915_NUM_ENGINES]; +}; + +int intel_guc_submission_init(struct intel_guc *guc); +int intel_guc_submission_enable(struct intel_guc *guc); +void intel_guc_submission_disable(struct intel_guc *guc); +void intel_guc_submission_fini(struct intel_guc *guc); + +#endif diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c index 2fb65eb7cf74..1e2a30a40ede 100644 --- a/drivers/gpu/drm/i915/intel_uc.c +++ b/drivers/gpu/drm/i915/intel_uc.c @@ -23,8 +23,8 @@ */ #include "intel_uc.h" +#include "intel_guc_submission.h" #include "i915_drv.h" -#include "i915_guc_submission.h" /* Reset GuC providing us with fresh state for both GuC and HuC. */ -- cgit v1.2.3 From 1759f27027c88adfd94b436fda219eb80531bf6d Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 9 Nov 2017 18:07:16 +0100 Subject: dt-bindings: usb: fix example hub node name According to the OF Recommended Practice for USB, hub nodes shall be named "hub", but the example had mixed up the label and node names. Fix the node name and drop the redundant label. While at it, remove a newline and add a missing semicolon to the example source. Signed-off-by: Johan Hovold Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/usb/usb-device.txt | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/usb-device.txt b/Documentation/devicetree/bindings/usb/usb-device.txt index ce02cebac26a..4df7e22e0084 100644 --- a/Documentation/devicetree/bindings/usb/usb-device.txt +++ b/Documentation/devicetree/bindings/usb/usb-device.txt @@ -16,12 +16,11 @@ Required properties: Example: &usb1 { - #address-cells = <1>; #size-cells = <0>; - hub: genesys@1 { + hub@1 { compatible = "usb5e3,608"; reg = <1>; }; -} +}; -- cgit v1.2.3 From f42ae7b0540937e00fe005812997f126aaac4bc2 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 9 Nov 2017 18:07:17 +0100 Subject: dt-bindings: usb: fix reg-property port-number range The USB hub port-number range for USB 2.0 is 1-255 and not 1-31 which reflects an arbitrary limit set by the current Linux implementation. Note that for USB 3.1 hubs the valid range is 1-15. Increase the documented valid range in the binding to 255, which is the maximum allowed by the specifications. Signed-off-by: Johan Hovold Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/usb/usb-device.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/usb-device.txt b/Documentation/devicetree/bindings/usb/usb-device.txt index 4df7e22e0084..b749fb9f2674 100644 --- a/Documentation/devicetree/bindings/usb/usb-device.txt +++ b/Documentation/devicetree/bindings/usb/usb-device.txt @@ -11,7 +11,7 @@ Required properties: be used, but a device adhering to this binding may leave out all except for usbVID,PID. - reg: the port number which this device is connecting to, the range - is 1-31. + is 1-255. Example: -- cgit v1.2.3 From bfebcf54608a749800a171ffd01f7d5b450e9a55 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 9 Nov 2017 18:07:18 +0100 Subject: dt-bindings: usb: clean up compatible property Add quotation marks around the compatible string to avoid ambiguity due to following punctuation, and define the VID and PID components. Signed-off-by: Johan Hovold Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/usb/usb-device.txt | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/usb-device.txt b/Documentation/devicetree/bindings/usb/usb-device.txt index b749fb9f2674..e0b562e35a0c 100644 --- a/Documentation/devicetree/bindings/usb/usb-device.txt +++ b/Documentation/devicetree/bindings/usb/usb-device.txt @@ -5,11 +5,11 @@ The reference binding doc is from: http://www.devicetree.org/open-firmware/bindings/usb/usb-1_0.ps Required properties: -- compatible: usbVID,PID. The textual representation of VID, PID shall - be in lower case hexadecimal with leading zeroes suppressed. The - other compatible strings from the above standard binding could also - be used, but a device adhering to this binding may leave out all except - for usbVID,PID. +- compatible: "usbVID,PID", where VID is the vendor id and PID the product id. + The textual representation of VID and PID shall be in lower case hexadecimal + with leading zeroes suppressed. The other compatible strings from the above + standard binding could also be used, but a device adhering to this binding + may leave out all except for "usbVID,PID". - reg: the port number which this device is connecting to, the range is 1-255. -- cgit v1.2.3 From f877918cdd793373fb7a960c72ba3639786e8e8f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 9 Nov 2017 18:07:19 +0100 Subject: dt-bindings: usb: document hub and host-controller properties Hub nodes and host-controller nodes with child nodes must specify values for #address-cells (1) and #size-cells (0). Also make the definition of the related reg property a bit more stringent, and add comments to the example source. Signed-off-by: Johan Hovold Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/usb/usb-device.txt | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/usb/usb-device.txt b/Documentation/devicetree/bindings/usb/usb-device.txt index e0b562e35a0c..1b27cebb47f4 100644 --- a/Documentation/devicetree/bindings/usb/usb-device.txt +++ b/Documentation/devicetree/bindings/usb/usb-device.txt @@ -4,22 +4,34 @@ Usually, we only use device tree for hard wired USB device. The reference binding doc is from: http://www.devicetree.org/open-firmware/bindings/usb/usb-1_0.ps + Required properties: - compatible: "usbVID,PID", where VID is the vendor id and PID the product id. The textual representation of VID and PID shall be in lower case hexadecimal with leading zeroes suppressed. The other compatible strings from the above standard binding could also be used, but a device adhering to this binding may leave out all except for "usbVID,PID". -- reg: the port number which this device is connecting to, the range - is 1-255. +- reg: the number of the USB hub port or the USB host-controller port to which + this device is attached. The range is 1-255. + + +Required properties for hub nodes with device nodes: +- #address-cells: shall be 1 +- #size-cells: shall be 0 + + +Required properties for host-controller nodes with device nodes: +- #address-cells: shall be 1 +- #size-cells: shall be 0 + Example: -&usb1 { +&usb1 { /* host controller */ #address-cells = <1>; #size-cells = <0>; - hub@1 { + hub@1 { /* hub connected to port 1 */ compatible = "usb5e3,608"; reg = <1>; }; -- cgit v1.2.3 From f8817f61e8215b0ff1b73a0d33fa04ef9e6bce8b Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 16 Nov 2017 22:51:22 +0100 Subject: PM / runtime: Drop children check from __pm_runtime_set_status() The check for "active" children in __pm_runtime_set_status(), when trying to set the parent device status to "suspended", doesn't really make sense, because in fact it is not invalid to set the status of a device with runtime PM disabled to "suspended" in any case. It is invalid to enable runtime PM for a device with its status set to "suspended" while its child_count reference counter is nonzero, but the check in __pm_runtime_set_status() doesn't really cover that situation. For this reason, drop the children check from __pm_runtime_set_status() and add a check against child_count reference counters of "suspended" devices to pm_runtime_enable(). Fixes: a8636c89648a (PM / Runtime: Don't allow to suspend a device with an active child) Signed-off-by: Rafael J. Wysocki Reviewed-by: Ulf Hansson Reviewed-by: Johan Hovold --- Documentation/power/runtime_pm.txt | 3 +-- drivers/base/power/runtime.c | 31 +++++++++++-------------------- 2 files changed, 12 insertions(+), 22 deletions(-) (limited to 'Documentation') diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt index 57af2f7963ee..937e33c46211 100644 --- a/Documentation/power/runtime_pm.txt +++ b/Documentation/power/runtime_pm.txt @@ -435,8 +435,7 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h: PM status to 'suspended' and update its parent's counter of 'active' children as appropriate (it is only valid to use this function if 'power.runtime_error' is set or 'power.disable_depth' is greater than - zero); it will fail and return an error code if the device has a child - which is active and the 'power.ignore_children' flag is unset + zero) bool pm_runtime_active(struct device *dev); - return true if the device's runtime PM status is 'active' or its diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 2362b9e9701e..027d159ac381 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -1101,29 +1101,13 @@ int __pm_runtime_set_status(struct device *dev, unsigned int status) goto out; } - if (dev->power.runtime_status == status) + if (dev->power.runtime_status == status || !parent) goto out_set; if (status == RPM_SUSPENDED) { - /* - * It is invalid to suspend a device with an active child, - * unless it has been set to ignore its children. - */ - if (!dev->power.ignore_children && - atomic_read(&dev->power.child_count)) { - dev_err(dev, "runtime PM trying to suspend device but active child\n"); - error = -EBUSY; - goto out; - } - - if (parent) { - atomic_add_unless(&parent->power.child_count, -1, 0); - notify_parent = !parent->power.ignore_children; - } - goto out_set; - } - - if (parent) { + atomic_add_unless(&parent->power.child_count, -1, 0); + notify_parent = !parent->power.ignore_children; + } else { spin_lock_nested(&parent->power.lock, SINGLE_DEPTH_NESTING); /* @@ -1307,6 +1291,13 @@ void pm_runtime_enable(struct device *dev) else dev_warn(dev, "Unbalanced %s!\n", __func__); + WARN(!dev->power.disable_depth && + dev->power.runtime_status == RPM_SUSPENDED && + !dev->power.ignore_children && + atomic_read(&dev->power.child_count) > 0, + "Enabling runtime PM for inactive device (%s) with active children\n", + dev_name(dev)); + spin_unlock_irqrestore(&dev->power.lock, flags); } EXPORT_SYMBOL_GPL(pm_runtime_enable); -- cgit v1.2.3 From c643401218be0f4ab3522e0c0a63016596d6e9ca Mon Sep 17 00:00:00 2001 From: Roman Gushchin Date: Fri, 17 Nov 2017 15:26:45 -0800 Subject: proc, coredump: add CoreDumping flag to /proc/pid/status Right now there is no convenient way to check if a process is being coredumped at the moment. It might be necessary to recognize such state to prevent killing the process and getting a broken coredump. Writing a large core might take significant time, and the process is unresponsive during it, so it might be killed by timeout, if another process is monitoring and killing/restarting hanging tasks. We're getting a significant number of corrupted coredump files on machines in our fleet, just because processes are being killed by timeout in the middle of the core writing process. We do have a process health check, and some agent is responsible for restarting processes which are not responding for health check requests. Writing a large coredump to the disk can easily exceed the reasonable timeout (especially on an overloaded machine). This flag will allow the agent to distinguish processes which are being coredumped, extend the timeout for them, and let them produce a full coredump file. To provide an ability to detect if a process is in the state of being coredumped, we can expose a boolean CoreDumping flag in /proc/pid/status. Example: $ cat core.sh #!/bin/sh echo "|/usr/bin/sleep 10" > /proc/sys/kernel/core_pattern sleep 1000 & PID=$! cat /proc/$PID/status | grep CoreDumping kill -ABRT $PID sleep 1 cat /proc/$PID/status | grep CoreDumping $ ./core.sh CoreDumping: 0 CoreDumping: 1 [guro@fb.com: document CoreDumping flag in /proc//status] Link: http://lkml.kernel.org/r/20170928135357.GA8470@castle.DHCP.thefacebook.com Link: http://lkml.kernel.org/r/20170920230634.31572-1-guro@fb.com Signed-off-by: Roman Gushchin Cc: Alexander Viro Cc: Ingo Molnar Cc: Konstantin Khlebnikov Cc: Oleg Nesterov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/filesystems/proc.txt | 3 +++ fs/proc/array.c | 6 ++++++ 2 files changed, 9 insertions(+) (limited to 'Documentation') diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index ec571b9bb18a..2a84bb334894 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -181,6 +181,7 @@ read the file /proc/PID/status: VmPTE: 20 kb VmSwap: 0 kB HugetlbPages: 0 kB + CoreDumping: 0 Threads: 1 SigQ: 0/28578 SigPnd: 0000000000000000 @@ -253,6 +254,8 @@ Table 1-2: Contents of the status files (as of 4.8) VmSwap amount of swap used by anonymous private data (shmem swap usage is not included) HugetlbPages size of hugetlb memory portions + CoreDumping process's memory is currently being dumped + (killing the process may lead to a corrupted core) Threads number of threads SigQ number of signals queued/max. number for queue SigPnd bitmap of pending signals for the thread diff --git a/fs/proc/array.c b/fs/proc/array.c index 6f6fc1672ad1..79375fc115d2 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -366,6 +366,11 @@ static void task_cpus_allowed(struct seq_file *m, struct task_struct *task) cpumask_pr_args(&task->cpus_allowed)); } +static inline void task_core_dumping(struct seq_file *m, struct mm_struct *mm) +{ + seq_printf(m, "CoreDumping:\t%d\n", !!mm->core_state); +} + int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, struct pid *pid, struct task_struct *task) { @@ -376,6 +381,7 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, if (mm) { task_mem(m, mm); + task_core_dumping(m, mm); mmput(mm); } task_sig(m, task); -- cgit v1.2.3 From b1fca27d384e8418aac84b39f6f5179aecc1b64f Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Fri, 17 Nov 2017 15:27:03 -0800 Subject: kernel debug: support resetting WARN*_ONCE I like _ONCE warnings because it's guaranteed that they don't flood the log. During testing I find it useful to reset the state of the once warnings, so that I can rerun tests and see if they trigger again, or can guarantee that a test run always hits the same warnings. This patch adds a debugfs interface to reset all the _ONCE warnings so that they appear again: echo 1 > /sys/kernel/debug/clear_warn_once This is implemented by putting all the warning booleans into a special section, and clearing it. [akpm@linux-foundation.org: coding-style fixes] Link: http://lkml.kernel.org/r/20171017221455.6740-1-andi@firstfloor.org Signed-off-by: Andi Kleen Tested-by: Michael Ellerman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/clearing-warn-once.txt | 7 +++++++ include/asm-generic/bug.h | 6 +++--- include/asm-generic/sections.h | 1 + include/asm-generic/vmlinux.lds.h | 3 +++ kernel/panic.c | 28 ++++++++++++++++++++++++++++ 5 files changed, 42 insertions(+), 3 deletions(-) create mode 100644 Documentation/clearing-warn-once.txt (limited to 'Documentation') diff --git a/Documentation/clearing-warn-once.txt b/Documentation/clearing-warn-once.txt new file mode 100644 index 000000000000..5b1f5d547be1 --- /dev/null +++ b/Documentation/clearing-warn-once.txt @@ -0,0 +1,7 @@ + +WARN_ONCE / WARN_ON_ONCE only print a warning once. + +echo 1 > /sys/kernel/debug/clear_warn_once + +clears the state and allows the warnings to print once again. +This can be useful after test suite runs to reproduce problems. diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index af2cc94a61bf..7844b0df88cd 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -130,7 +130,7 @@ void __warn(const char *file, int line, void *caller, unsigned taint, #ifndef WARN_ON_ONCE #define WARN_ON_ONCE(condition) ({ \ - static bool __section(.data.unlikely) __warned; \ + static bool __section(.data.once) __warned; \ int __ret_warn_once = !!(condition); \ \ if (unlikely(__ret_warn_once && !__warned)) { \ @@ -142,7 +142,7 @@ void __warn(const char *file, int line, void *caller, unsigned taint, #endif #define WARN_ONCE(condition, format...) ({ \ - static bool __section(.data.unlikely) __warned; \ + static bool __section(.data.once) __warned; \ int __ret_warn_once = !!(condition); \ \ if (unlikely(__ret_warn_once && !__warned)) { \ @@ -153,7 +153,7 @@ void __warn(const char *file, int line, void *caller, unsigned taint, }) #define WARN_TAINT_ONCE(condition, taint, format...) ({ \ - static bool __section(.data.unlikely) __warned; \ + static bool __section(.data.once) __warned; \ int __ret_warn_once = !!(condition); \ \ if (unlikely(__ret_warn_once && !__warned)) { \ diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h index 6d9576931084..03cc5f9bba71 100644 --- a/include/asm-generic/sections.h +++ b/include/asm-generic/sections.h @@ -44,6 +44,7 @@ extern char __entry_text_start[], __entry_text_end[]; extern char __start_rodata[], __end_rodata[]; extern char __irqentry_text_start[], __irqentry_text_end[]; extern char __softirqentry_text_start[], __softirqentry_text_end[]; +extern char __start_once[], __end_once[]; /* Start and end of .ctors section - used for constructor calls. */ extern char __ctors_start[], __ctors_end[]; diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index bdcd1caae092..ee8b707d9fa9 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -223,6 +223,9 @@ MEM_KEEP(init.data) \ MEM_KEEP(exit.data) \ *(.data.unlikely) \ + VMLINUX_SYMBOL(__start_once) = .; \ + *(.data.once) \ + VMLINUX_SYMBOL(__end_once) = .; \ STRUCT_ALIGN(); \ *(__tracepoints) \ /* implement dynamic printk debug */ \ diff --git a/kernel/panic.c b/kernel/panic.c index bdd18afa19a4..672a91dc20fe 100644 --- a/kernel/panic.c +++ b/kernel/panic.c @@ -27,6 +27,8 @@ #include #include #include +#include +#include #define PANIC_TIMER_STEP 100 #define PANIC_BLINK_SPD 18 @@ -587,6 +589,32 @@ void warn_slowpath_null(const char *file, int line) EXPORT_SYMBOL(warn_slowpath_null); #endif +#ifdef CONFIG_BUG + +/* Support resetting WARN*_ONCE state */ + +static int clear_warn_once_set(void *data, u64 val) +{ + memset(__start_once, 0, __end_once - __start_once); + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(clear_warn_once_fops, + NULL, + clear_warn_once_set, + "%lld\n"); + +static __init int register_warn_debugfs(void) +{ + /* Don't care about failure */ + debugfs_create_file("clear_warn_once", 0644, NULL, + NULL, &clear_warn_once_fops); + return 0; +} + +device_initcall(register_warn_debugfs); +#endif + #ifdef CONFIG_CC_STACKPROTECTOR /* -- cgit v1.2.3 From 8c188759fb5788579b5975d5a8c9f529e25c2171 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 17 Nov 2017 15:27:39 -0800 Subject: dynamic_debug documentation: minor fixes Fix minor typo. Fix missing words in explaining parsing of last line number. Link: http://lkml.kernel.org/r/ebb7ff42-4945-103f-d5b4-f07a6f3343a7@infradead.org Signed-off-by: Randy Dunlap Cc: Jason Baron Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/admin-guide/dynamic-debug-howto.rst | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/dynamic-debug-howto.rst b/Documentation/admin-guide/dynamic-debug-howto.rst index 12278a926370..fdf72429f801 100644 --- a/Documentation/admin-guide/dynamic-debug-howto.rst +++ b/Documentation/admin-guide/dynamic-debug-howto.rst @@ -18,7 +18,7 @@ shortcut for ``print_hex_dump(KERN_DEBUG)``. For ``print_hex_dump_debug()``/``print_hex_dump_bytes()``, format string is its ``prefix_str`` argument, if it is constant string; or ``hexdump`` -in case ``prefix_str`` is build dynamically. +in case ``prefix_str`` is built dynamically. Dynamic debug has even more useful features: @@ -197,8 +197,8 @@ line line number matches the callsite line number exactly. A range of line numbers matches any callsite between the first and last line number inclusive. An empty first number means - the first line in the file, an empty line number means the - last number in the file. Examples:: + the first line in the file, an empty last line number means the + last line number in the file. Examples:: line 1603 // exactly line 1603 line 1600-1605 // the six lines from line 1600 to line 1605 -- cgit v1.2.3 From 2743232c0c4c82311718bb4ec1fb659ed64ecf7a Mon Sep 17 00:00:00 2001 From: Kangmin Park Date: Fri, 17 Nov 2017 15:30:23 -0800 Subject: Documentation/sysctl/vm.txt: fix typo Link: http://lkml.kernel.org/r/CAKW4uUyCi=PnKf3epgFVz8z=1tMtHSOHNm+fdNxrNw3-THvRCA@mail.gmail.com Signed-off-by: Kangmin Park Cc: Jiri Kosina Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/sysctl/vm.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 055c8b3e1018..b920423f88cb 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -818,7 +818,7 @@ tooling to work, you can do: swappiness This control is used to define how aggressive the kernel will swap -memory pages. Higher values will increase agressiveness, lower values +memory pages. Higher values will increase aggressiveness, lower values decrease the amount of swap. A value of 0 instructs the kernel not to initiate swap until the amount of free and file-backed pages is less than the high water mark in a zone. -- cgit v1.2.3 From c512ac01d8a841033da8ec538a83f80fb0b4d1fe Mon Sep 17 00:00:00 2001 From: Victor Chibotaru Date: Fri, 17 Nov 2017 15:30:53 -0800 Subject: kcov: update documentation The updated documentation describes new KCOV mode for collecting comparison operands. Link: http://lkml.kernel.org/r/20171011095459.70721-3-glider@google.com Signed-off-by: Victor Chibotaru Signed-off-by: Alexander Potapenko Cc: Dmitry Vyukov Cc: Andrey Konovalov Cc: Mark Rutland Cc: Alexander Popov Cc: Andrey Ryabinin Cc: Kees Cook Cc: Vegard Nossum Cc: Quentin Casasnovas Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/dev-tools/kcov.rst | 99 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 95 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/dev-tools/kcov.rst b/Documentation/dev-tools/kcov.rst index 44886c91e112..c2f6452e38ed 100644 --- a/Documentation/dev-tools/kcov.rst +++ b/Documentation/dev-tools/kcov.rst @@ -12,19 +12,30 @@ To achieve this goal it does not collect coverage in soft/hard interrupts and instrumentation of some inherently non-deterministic parts of kernel is disabled (e.g. scheduler, locking). -Usage ------ +kcov is also able to collect comparison operands from the instrumented code +(this feature currently requires that the kernel is compiled with clang). + +Prerequisites +------------- Configure the kernel with:: CONFIG_KCOV=y CONFIG_KCOV requires gcc built on revision 231296 or later. + +If the comparison operands need to be collected, set:: + + CONFIG_KCOV_ENABLE_COMPARISONS=y + Profiling data will only become accessible once debugfs has been mounted:: mount -t debugfs none /sys/kernel/debug -The following program demonstrates kcov usage from within a test program: +Coverage collection +------------------- +The following program demonstrates coverage collection from within a test +program using kcov: .. code-block:: c @@ -44,6 +55,9 @@ The following program demonstrates kcov usage from within a test program: #define KCOV_DISABLE _IO('c', 101) #define COVER_SIZE (64<<10) + #define KCOV_TRACE_PC 0 + #define KCOV_TRACE_CMP 1 + int main(int argc, char **argv) { int fd; @@ -64,7 +78,7 @@ The following program demonstrates kcov usage from within a test program: if ((void*)cover == MAP_FAILED) perror("mmap"), exit(1); /* Enable coverage collection on the current thread. */ - if (ioctl(fd, KCOV_ENABLE, 0)) + if (ioctl(fd, KCOV_ENABLE, KCOV_TRACE_PC)) perror("ioctl"), exit(1); /* Reset coverage from the tail of the ioctl() call. */ __atomic_store_n(&cover[0], 0, __ATOMIC_RELAXED); @@ -111,3 +125,80 @@ The interface is fine-grained to allow efficient forking of test processes. That is, a parent process opens /sys/kernel/debug/kcov, enables trace mode, mmaps coverage buffer and then forks child processes in a loop. Child processes only need to enable coverage (disable happens automatically on thread end). + +Comparison operands collection +------------------------------ +Comparison operands collection is similar to coverage collection: + +.. code-block:: c + + /* Same includes and defines as above. */ + + /* Number of 64-bit words per record. */ + #define KCOV_WORDS_PER_CMP 4 + + /* + * The format for the types of collected comparisons. + * + * Bit 0 shows whether one of the arguments is a compile-time constant. + * Bits 1 & 2 contain log2 of the argument size, up to 8 bytes. + */ + + #define KCOV_CMP_CONST (1 << 0) + #define KCOV_CMP_SIZE(n) ((n) << 1) + #define KCOV_CMP_MASK KCOV_CMP_SIZE(3) + + int main(int argc, char **argv) + { + int fd; + uint64_t *cover, type, arg1, arg2, is_const, size; + unsigned long n, i; + + fd = open("/sys/kernel/debug/kcov", O_RDWR); + if (fd == -1) + perror("open"), exit(1); + if (ioctl(fd, KCOV_INIT_TRACE, COVER_SIZE)) + perror("ioctl"), exit(1); + /* + * Note that the buffer pointer is of type uint64_t*, because all + * the comparison operands are promoted to uint64_t. + */ + cover = (uint64_t *)mmap(NULL, COVER_SIZE * sizeof(unsigned long), + PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + if ((void*)cover == MAP_FAILED) + perror("mmap"), exit(1); + /* Note KCOV_TRACE_CMP instead of KCOV_TRACE_PC. */ + if (ioctl(fd, KCOV_ENABLE, KCOV_TRACE_CMP)) + perror("ioctl"), exit(1); + __atomic_store_n(&cover[0], 0, __ATOMIC_RELAXED); + read(-1, NULL, 0); + /* Read number of comparisons collected. */ + n = __atomic_load_n(&cover[0], __ATOMIC_RELAXED); + for (i = 0; i < n; i++) { + type = cover[i * KCOV_WORDS_PER_CMP + 1]; + /* arg1 and arg2 - operands of the comparison. */ + arg1 = cover[i * KCOV_WORDS_PER_CMP + 2]; + arg2 = cover[i * KCOV_WORDS_PER_CMP + 3]; + /* ip - caller address. */ + ip = cover[i * KCOV_WORDS_PER_CMP + 4]; + /* size of the operands. */ + size = 1 << ((type & KCOV_CMP_MASK) >> 1); + /* is_const - true if either operand is a compile-time constant.*/ + is_const = type & KCOV_CMP_CONST; + printf("ip: 0x%lx type: 0x%lx, arg1: 0x%lx, arg2: 0x%lx, " + "size: %lu, %s\n", + ip, type, arg1, arg2, size, + is_const ? "const" : "non-const"); + } + if (ioctl(fd, KCOV_DISABLE, 0)) + perror("ioctl"), exit(1); + /* Free resources. */ + if (munmap(cover, COVER_SIZE * sizeof(unsigned long))) + perror("munmap"), exit(1); + if (close(fd)) + perror("close"), exit(1); + return 0; + } + +Note that the kcov modes (coverage collection or comparison operands) are +mutually exclusive. -- cgit v1.2.3 From 16f8259ca77d04f95e5ca90be1b1894ed45816c0 Mon Sep 17 00:00:00 2001 From: Bjørn Forsman Date: Sun, 5 Nov 2017 10:44:16 +0100 Subject: kbuild: /bin/pwd -> pwd MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Most places use pwd and rely on $PATH lookup. Moving the remaining absolute path /bin/pwd users over for consistency. Also, a reason for doing /bin/pwd -> pwd instead of the other way around is because I believe build systems should make little assumptions on host filesystem layout. Case in point, we do this kind of patching already in NixOS. Ref. commit 028568d84da3cfca49f5f846eeeef01441d70451 ("kbuild: revert $(realpath ...) to $(shell cd ... && /bin/pwd)"). Signed-off-by: Bjørn Forsman Signed-off-by: Masahiro Yamada --- Documentation/ia64/xen.txt | 2 +- Makefile | 2 +- tools/power/cpupower/Makefile | 2 +- tools/scripts/Makefile.include | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ia64/xen.txt b/Documentation/ia64/xen.txt index c61a99f7c8bb..a12c74ce2773 100644 --- a/Documentation/ia64/xen.txt +++ b/Documentation/ia64/xen.txt @@ -41,7 +41,7 @@ Getting and Building Xen and Dom0 5. make initrd for Dom0/DomU # make -C linux-2.6.18-xen.hg ARCH=ia64 modules_install \ - O=$(/bin/pwd)/build-linux-2.6.18-xen_ia64 + O=$(pwd)/build-linux-2.6.18-xen_ia64 # mkinitrd -f /boot/efi/efi/redhat/initrd-2.6.18.8-xen.img \ 2.6.18.8-xen --builtin mptspi --builtin mptbase \ --builtin mptscsih --builtin uhci-hcd --builtin ohci-hcd \ diff --git a/Makefile b/Makefile index efb942ad0b55..533fc1d0f283 100644 --- a/Makefile +++ b/Makefile @@ -132,7 +132,7 @@ ifneq ($(KBUILD_OUTPUT),) # check that the output directory actually exists saved-output := $(KBUILD_OUTPUT) KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ - && /bin/pwd) + && pwd) $(if $(KBUILD_OUTPUT),, \ $(error failed to create output directory "$(saved-output)")) diff --git a/tools/power/cpupower/Makefile b/tools/power/cpupower/Makefile index da205d1fa03c..1dd5f4fcffd5 100644 --- a/tools/power/cpupower/Makefile +++ b/tools/power/cpupower/Makefile @@ -26,7 +26,7 @@ endif ifneq ($(OUTPUT),) # check that the output directory actually exists -OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd) +OUTDIR := $(shell cd $(OUTPUT) && pwd) $(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist)) endif diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include index 654efd9768fd..3fab179b1aba 100644 --- a/tools/scripts/Makefile.include +++ b/tools/scripts/Makefile.include @@ -13,7 +13,7 @@ endif # check that the output directory actually exists ifneq ($(OUTPUT),) -OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd) +OUTDIR := $(shell cd $(OUTPUT) && pwd) $(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist)) endif -- cgit v1.2.3 From d0450244a4920187eebf844a1610744059b59ee6 Mon Sep 17 00:00:00 2001 From: Logan Gunthorpe Date: Thu, 3 Aug 2017 12:19:54 -0600 Subject: NTB: switchtec_ntb: Update switchtec documentation with notes for NTB The switchtec_ntb driver has a couple requirements on the switchec's hardware configuration so we add these notes to the documentation. Signed-off-by: Logan Gunthorpe Reviewed-by: Stephen Bates Reviewed-by: Kurt Schwemmer Acked-by: Allen Hubbe Signed-off-by: Jon Mason --- Documentation/switchtec.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'Documentation') diff --git a/Documentation/switchtec.txt b/Documentation/switchtec.txt index a0a9c7b3d4d5..f788264921ff 100644 --- a/Documentation/switchtec.txt +++ b/Documentation/switchtec.txt @@ -78,3 +78,15 @@ The following IOCTLs are also supported by the device: between PCI Function Framework number (used by the event system) and Switchtec Logic Port ID and Partition number (which is more user friendly). + + +Non-Transparent Bridge (NTB) Driver +=================================== + +An NTB driver is provided for the switchtec hardware in switchtec_ntb. +Currently, it only supports switches configured with exactly 2 +partitions. It also requires the following configuration settings: + +* Both partitions must be able to access each other's GAS spaces. + Thus, the bits in the GAS Access Vector under Management Settings + must be set to support this. -- cgit v1.2.3 From 8ee25f6fcfa967da26c5dfa43c731a61f84f7404 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 16 Nov 2017 14:23:09 +0100 Subject: Documentation/process: add Co-Developed-by: tag for patches with multiple authors Sometimes a single patch is the result of multiple authors. As git only can have one "author" of a patch, it is still good to properly give credit to the other developers of a commit. To address this, document the "Co-Developed-by:" tag which can be used to show other authors of the patch. Note, these other authors must also provide a Signed-off-by: tag as it is their work that is being submitted here. Reported-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman Reviewed-by: Thomas Gleixner Acked-by: Borislav Petkov Signed-off-by: Jonathan Corbet --- Documentation/process/5.Posting.rst | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'Documentation') diff --git a/Documentation/process/5.Posting.rst b/Documentation/process/5.Posting.rst index 1b7728b19ea7..645fa9c7388a 100644 --- a/Documentation/process/5.Posting.rst +++ b/Documentation/process/5.Posting.rst @@ -213,6 +213,11 @@ The tags in common use are: which can be found in Documentation/process/submitting-patches.rst. Code without a proper signoff cannot be merged into the mainline. + - Co-Developed-by: states that the patch was also created by another developer + along with the original author. This is useful at times when multiple + people work on a single patch. Note, this person also needs to have a + Signed-off-by: line in the patch as well. + - Acked-by: indicates an agreement by another developer (often a maintainer of the relevant code) that the patch is appropriate for inclusion into the kernel. -- cgit v1.2.3 From 578152da87c7e9d350a5164beb16214e5bef1420 Mon Sep 17 00:00:00 2001 From: SeongJae Park Date: Sat, 18 Nov 2017 11:52:23 +0900 Subject: kokr/memory-barriers/txt: Replace uses of "transitive" This commit applies two upstream change, commit f1ab25a30ce8 ("memory-barriers: Replace uses of "transitive"") and commit 0902b1f44a72 ("memory-barriers: Rework multicopy-atomicity section") to the Korean translation. Those two changes are applied with this signle commit because the second change is improvement of the first one. Signed-off-by: SeongJae Park Signed-off-by: Jonathan Corbet --- .../translations/ko_KR/memory-barriers.txt | 176 ++++++++++----------- 1 file changed, 88 insertions(+), 88 deletions(-) (limited to 'Documentation') diff --git a/Documentation/translations/ko_KR/memory-barriers.txt b/Documentation/translations/ko_KR/memory-barriers.txt index a7a813258013..7433ad60fabc 100644 --- a/Documentation/translations/ko_KR/memory-barriers.txt +++ b/Documentation/translations/ko_KR/memory-barriers.txt @@ -82,7 +82,7 @@ Documentation/memory-barriers.txt - SMP 배리어 짝맞추기. - 메모리 배리어 시퀀스의 예. - 읽기 메모리 배리어 vs 로드 예측. - - 이행성 + - Multicopy 원자성. (*) 명시적 커널 배리어. @@ -656,6 +656,11 @@ Documentation/RCU/rcu_dereference.txt 파일을 주의 깊게 읽어 주시기 해줍니다. +데이터 의존성에 의해 제공되는 이 순서규칙은 이를 포함하고 있는 CPU 에 +지역적임을 알아두시기 바랍니다. 더 많은 정보를 위해선 "Multicopy 원자성" +섹션을 참고하세요. + + 데이터 의존성 배리어는 매우 중요한데, 예를 들어 RCU 시스템에서 그렇습니다. include/linux/rcupdate.h 의 rcu_assign_pointer() 와 rcu_dereference() 를 참고하세요. 여기서 데이터 의존성 배리어는 RCU 로 관리되는 포인터의 타겟을 현재 @@ -864,38 +869,10 @@ CPU 는 b 로부터의 로드 오퍼레이션이 a 로부터의 로드 오퍼레 주어진 if 문의 then 절과 else 절에게만 (그리고 이 두 절 내에서 호출되는 함수들에게까지) 적용되지, 이 if 문을 뒤따르는 코드에는 적용되지 않습니다. -마지막으로, 컨트롤 의존성은 이행성 (transitivity) 을 제공하지 -않습니다-. 이건 -'x' 와 'y' 가 둘 다 0 이라는 초기값을 가졌다는 가정 하의 두개의 예제로 -보이겠습니다: - - CPU 0 CPU 1 - ======================= ======================= - r1 = READ_ONCE(x); r2 = READ_ONCE(y); - if (r1 > 0) if (r2 > 0) - WRITE_ONCE(y, 1); WRITE_ONCE(x, 1); - - assert(!(r1 == 1 && r2 == 1)); - -이 두 CPU 예제에서 assert() 의 조건은 항상 참일 것입니다. 그리고, 만약 컨트롤 -의존성이 이행성을 (실제로는 그러지 않지만) 보장한다면, 다음의 CPU 가 추가되어도 -아래의 assert() 조건은 참이 될것입니다: - CPU 2 - ===================== - WRITE_ONCE(x, 2); +컨트롤 의존성에 의해 제공되는 이 순서규칙은 이를 포함하고 있는 CPU 에 +지역적입니다. 더 많은 정보를 위해선 "Multicopy 원자성" 섹션을 참고하세요. - assert(!(r1 == 2 && r2 == 1 && x == 2)); /* FAILS!!! */ - -하지만 컨트롤 의존성은 이행성을 제공하지 -않기- 때문에, 세개의 CPU 예제가 실행 -완료된 후에 위의 assert() 의 조건은 거짓으로 평가될 수 있습니다. 세개의 CPU -예제가 순서를 지키길 원한다면, CPU 0 와 CPU 1 코드의 로드와 스토어 사이, "if" -문 바로 다음에 smp_mb()를 넣어야 합니다. 더 나아가서, 최초의 두 CPU 예제는 -매우 위험하므로 사용되지 않아야 합니다. - -이 두개의 예제는 다음 논문: -http://www.cl.cam.ac.uk/users/pes20/ppc-supplemental/test6.pdf 와 -이 사이트: https://www.cl.cam.ac.uk/~pes20/ppcmem/index.html 에 나온 LB 와 WWC -리트머스 테스트입니다. 요약하자면: @@ -930,8 +907,8 @@ http://www.cl.cam.ac.uk/users/pes20/ppc-supplemental/test6.pdf 와 (*) 컨트롤 의존성은 보통 다른 타입의 배리어들과 짝을 맞춰 사용됩니다. - (*) 컨트롤 의존성은 이행성을 제공하지 -않습니다-. 이행성이 필요하다면, - smp_mb() 를 사용하세요. + (*) 컨트롤 의존성은 multicopy 원자성을 제공하지 -않습니다-. 모든 CPU 들이 + 특정 스토어를 동시에 보길 원한다면, smp_mb() 를 사용하세요. (*) 컴파일러는 컨트롤 의존성을 이해하고 있지 않습니다. 따라서 컴파일러가 여러분의 코드를 망가뜨리지 않도록 하는건 여러분이 해야 하는 일입니다. @@ -943,13 +920,14 @@ SMP 배리어 짝맞추기 CPU 간 상호작용을 다룰 때에 일부 타입의 메모리 배리어는 항상 짝을 맞춰 사용되어야 합니다. 적절하게 짝을 맞추지 않은 코드는 사실상 에러에 가깝습니다. -범용 배리어들은 범용 배리어끼리도 짝을 맞추지만 이행성이 없는 대부분의 다른 -타입의 배리어들과도 짝을 맞춥니다. ACQUIRE 배리어는 RELEASE 배리어와 짝을 -맞춥니다만, 둘 다 범용 배리어를 포함해 다른 배리어들과도 짝을 맞출 수 있습니다. -쓰기 배리어는 데이터 의존성 배리어나 컨트롤 의존성, ACQUIRE 배리어, RELEASE -배리어, 읽기 배리어, 또는 범용 배리어와 짝을 맞춥니다. 비슷하게 읽기 배리어나 -컨트롤 의존성, 또는 데이터 의존성 배리어는 쓰기 배리어나 ACQUIRE 배리어, -RELEASE 배리어, 또는 범용 배리어와 짝을 맞추는데, 다음과 같습니다: +범용 배리어들은 범용 배리어끼리도 짝을 맞추지만 multicopy 원자성이 없는 +대부분의 다른 타입의 배리어들과도 짝을 맞춥니다. ACQUIRE 배리어는 RELEASE +배리어와 짝을 맞춥니다만, 둘 다 범용 배리어를 포함해 다른 배리어들과도 짝을 +맞출 수 있습니다. 쓰기 배리어는 데이터 의존성 배리어나 컨트롤 의존성, ACQUIRE +배리어, RELEASE 배리어, 읽기 배리어, 또는 범용 배리어와 짝을 맞춥니다. +비슷하게 읽기 배리어나 컨트롤 의존성, 또는 데이터 의존성 배리어는 쓰기 배리어나 +ACQUIRE 배리어, RELEASE 배리어, 또는 범용 배리어와 짝을 맞추는데, 다음과 +같습니다: CPU 1 CPU 2 =============== =============== @@ -1361,57 +1339,74 @@ A 의 로드 두개가 모두 B 의 로드 뒤에 있지만, 서로 다른 값 : : +-------+ -이행성 ------- +MULTICOPY 원자성 +---------------- -이행성(transitivity)은 실제의 컴퓨터 시스템에서 항상 제공되지는 않는, 순서 -맞추기에 대한 상당히 직관적인 개념입니다. 다음의 예가 이행성을 보여줍니다: +Multicopy 원자성은 실제의 컴퓨터 시스템에서 항상 제공되지는 않는, 순서 맞추기에 +대한 상당히 직관적인 개념으로, 특정 스토어가 모든 CPU 들에게 동시에 보여지게 +됨을, 달리 말하자면 모든 CPU 들이 모든 스토어들이 보여지는 순서를 동의하게 되는 +것입니다. 하지만, 완전한 multicopy 원자성의 사용은 가치있는 하드웨어 +최적화들을 무능하게 만들어버릴 수 있어서, 보다 완화된 형태의 ``다른 multicopy +원자성'' 라는 이름의, 특정 스토어가 모든 -다른- CPU 들에게는 동시에 보여지게 +하는 보장을 대신 제공합니다. 이 문서의 뒷부분들은 이 완화된 형태에 대해 논하게 +됩니다만, 단순히 ``multicopy 원자성'' 이라고 부르겠습니다. + +다음의 예가 multicopy 원자성을 보입니다: CPU 1 CPU 2 CPU 3 ======================= ======================= ======================= { X = 0, Y = 0 } - STORE X=1 LOAD X STORE Y=1 - <범용 배리어> <범용 배리어> - LOAD Y LOAD X - -CPU 2 의 X 로드가 1을 리턴했고 Y 로드가 0을 리턴했다고 해봅시다. 이는 CPU 2 의 -X 로드가 CPU 1 의 X 스토어 뒤에 이루어졌고 CPU 2 의 Y 로드는 CPU 3 의 Y 스토어 -전에 이루어졌음을 의미합니다. 그럼 "CPU 3 의 X 로드는 0을 리턴할 수 있나요?" - -CPU 2 의 X 로드는 CPU 1 의 스토어 후에 이루어졌으니, CPU 3 의 X 로드는 1을 -리턴하는게 자연스럽습니다. 이런 생각이 이행성의 한 예입니다: CPU A 에서 실행된 -로드가 CPU B 에서의 같은 변수에 대한 로드를 뒤따른다면, CPU A 의 로드는 CPU B -의 로드가 내놓은 값과 같거나 그 후의 값을 내놓아야 합니다. - -리눅스 커널에서 범용 배리어의 사용은 이행성을 보장합니다. 따라서, 앞의 예에서 -CPU 2 의 X 로드가 1을, Y 로드는 0을 리턴했다면, CPU 3 의 X 로드는 반드시 1을 -리턴합니다. - -하지만, 읽기나 쓰기 배리어에 대해서는 이행성이 보장되지 -않습니다-. 예를 들어, -앞의 예에서 CPU 2 의 범용 배리어가 아래처럼 읽기 배리어로 바뀐 경우를 생각해 -봅시다: + STORE X=1 r1=LOAD X (reads 1) LOAD Y (reads 1) + <범용 배리어> <읽기 배리어> + STORE Y=r1 LOAD X + +CPU 2 의 Y 로의 스토어에 사용되는 X 로드의 결과가 1 이었고 CPU 3 의 Y 로드가 +1을 리턴했다고 해봅시다. 이는 CPU 1 의 X 로의 스토어가 CPU 2 의 X 로부터의 +로드를 앞서고 CPU 2 의 Y 로의 스토어가 CPU 3 의 Y 로부터의 로드를 앞섬을 +의미합니다. 또한, 여기서의 메모리 배리어들은 CPU 2 가 자신의 로드를 자신의 +스토어 전에 수행하고, CPU 3 가 Y 로부터의 로드를 X 로부터의 로드 전에 수행함을 +보장합니다. 그럼 "CPU 3 의 X 로부터의 로드는 0 을 리턴할 수 있을까요?" + +CPU 3 의 X 로드가 CPU 2 의 로드보다 뒤에 이루어졌으므로, CPU 3 의 X 로부터의 +로드는 1 을 리턴한다고 예상하는게 당연합니다. 이런 예상은 multicopy +원자성으로부터 나옵니다: CPU B 에서 수행된 로드가 CPU A 의 같은 변수로부터의 +로드를 뒤따른다면 (그리고 CPU A 가 자신이 읽은 값으로 먼저 해당 변수에 스토어 +하지 않았다면) multicopy 원자성을 제공하는 시스템에서는, CPU B 의 로드가 CPU A +의 로드와 같은 값 또는 그 나중 값을 리턴해야만 합니다. 하지만, 리눅스 커널은 +시스템들이 multicopy 원자성을 제공할 것을 요구하지 않습니다. + +앞의 범용 메모리 배리어의 사용은 모든 multicopy 원자성의 부족을 보상해줍니다. +앞의 예에서, CPU 2 의 X 로부터의 로드가 1 을 리턴했고 CPU 3 의 Y 로부터의 +로드가 1 을 리턴했다면, CPU 3 의 X 로부터의 로드는 1을 리턴해야만 합니다. + +하지만, 의존성, 읽기 배리어, 쓰기 배리어는 항상 non-multicopy 원자성을 보상해 +주지는 않습니다. 예를 들어, CPU 2 의 범용 배리어가 앞의 예에서 사라져서 +아래처럼 데이터 의존성만 남게 되었다고 해봅시다: CPU 1 CPU 2 CPU 3 ======================= ======================= ======================= { X = 0, Y = 0 } - STORE X=1 LOAD X STORE Y=1 - <읽기 배리어> <범용 배리어> - LOAD Y LOAD X - -이 코드는 이행성을 갖지 않습니다: 이 예에서는, CPU 2 의 X 로드가 1을 -리턴하고, Y 로드는 0을 리턴하지만 CPU 3 의 X 로드가 0을 리턴하는 것도 완전히 -합법적입니다. - -CPU 2 의 읽기 배리어가 자신의 읽기는 순서를 맞춰줘도, CPU 1 의 스토어와의 -순서를 맞춰준다고는 보장할 수 없다는게 핵심입니다. 따라서, CPU 1 과 CPU 2 가 -버퍼나 캐시를 공유하는 시스템에서 이 예제 코드가 실행된다면, CPU 2 는 CPU 1 이 -쓴 값에 좀 빨리 접근할 수 있을 것입니다. 따라서 CPU 1 과 CPU 2 의 접근으로 -조합된 순서를 모든 CPU 가 동의할 수 있도록 하기 위해 범용 배리어가 필요합니다. - -범용 배리어는 "글로벌 이행성"을 제공해서, 모든 CPU 들이 오퍼레이션들의 순서에 -동의하게 할 것입니다. 반면, release-acquire 조합은 "로컬 이행성" 만을 -제공해서, 해당 조합이 사용된 CPU 들만이 해당 액세스들의 조합된 순서에 동의함이 -보장됩니다. 예를 들어, 존경스런 Herman Hollerith 의 C 코드로 보면: + STORE X=1 r1=LOAD X (reads 1) LOAD Y (reads 1) + <데이터 의존성> <읽기 배리어> + STORE Y=r1 LOAD X (reads 0) + +이 변화는 non-multicopy 원자성이 만연하게 합니다: 이 예에서, CPU 2 의 X +로부터의 로드가 1을 리턴하고, CPU 3 의 Y 로부터의 로드가 1 을 리턴하는데, CPU 3 +의 X 로부터의 로드가 0 을 리턴하는게 완전히 합법적입니다. + +핵심은, CPU 2 의 데이터 의존성이 자신의 로드와 스토어를 순서짓지만, CPU 1 의 +스토어에 대한 순서는 보장하지 않는다는 것입니다. 따라서, 이 예제가 CPU 1 과 +CPU 2 가 스토어 버퍼나 한 수준의 캐시를 공유하는, multicopy 원자성을 제공하지 +않는 시스템에서 수행된다면 CPU 2 는 CPU 1 의 쓰기에 이른 접근을 할 수도 +있습니다. 따라서, 모든 CPU 들이 여러 접근들의 조합된 순서에 대해서 동의하게 +하기 위해서는 범용 배리어가 필요합니다. + +범용 배리어는 non-multicopy 원자성만 보상할 수 있는게 아니라, -모든- CPU 들이 +-모든- 오퍼레이션들의 순서를 동일하게 인식하게 하는 추가적인 순서 보장을 +만들어냅니다. 반대로, release-acquire 짝의 연결은 이런 추가적인 순서는 +제공하지 않는데, 해당 연결에 들어있는 CPU 들만이 메모리 접근의 조합된 순서에 +대해 동의할 것으로 보장됨을 의미합니다. 예를 들어, 존경스런 Herman Hollerith +의 코드를 C 코드로 변환하면: int u, v, x, y, z; @@ -1444,8 +1439,7 @@ CPU 2 의 읽기 배리어가 자신의 읽기는 순서를 맞춰줘도, CPU 1 } cpu0(), cpu1(), 그리고 cpu2() 는 smp_store_release()/smp_load_acquire() 쌍의 -연결을 통한 로컬 이행성에 동참하고 있으므로, 다음과 같은 결과는 나오지 않을 -겁니다: +연결에 참여되어 있으므로, 다음과 같은 결과는 나오지 않을 겁니다: r0 == 1 && r1 == 1 && r2 == 1 @@ -1454,8 +1448,9 @@ cpu0() 의 쓰기를 봐야만 하므로, 다음과 같은 결과도 없을 겁 r1 == 1 && r5 == 0 -하지만, release-acquire 타동성은 동참한 CPU 들에만 적용되므로 cpu3() 에는 -적용되지 않습니다. 따라서, 다음과 같은 결과가 가능합니다: +하지만, release-acquire 에 의해 제공되는 순서는 해당 연결에 동참한 CPU 들에만 +적용되므로 cpu3() 에, 적어도 스토어들 외에는 적용되지 않습니다. 따라서, 다음과 +같은 결과가 가능합니다: r0 == 0 && r1 == 1 && r2 == 1 && r3 == 0 && r4 == 0 @@ -1482,8 +1477,8 @@ u 로의 스토어를 cpu1() 의 v 로부터의 로드 뒤에 일어난 것으 이런 결과는 어떤 것도 재배치 되지 않는, 순차적 일관성을 가진 가상의 시스템에서도 일어날 수 있음을 기억해 두시기 바랍니다. -다시 말하지만, 당신의 코드가 글로벌 이행성을 필요로 한다면, 범용 배리어를 -사용하십시오. +다시 말하지만, 당신의 코드가 모든 오퍼레이션들의 완전한 순서를 필요로 한다면, +범용 배리어를 사용하십시오. ================== @@ -3058,6 +3053,9 @@ AMD64 Architecture Programmer's Manual Volume 2: System Programming Chapter 7.1: Memory-Access Ordering Chapter 7.4: Buffering and Combining Memory Writes +ARM Architecture Reference Manual (ARMv8, for ARMv8-A architecture profile) + Chapter B2: The AArch64 Application Level Memory Model + IA-32 Intel Architecture Software Developer's Manual, Volume 3: System Programming Guide Chapter 7.1: Locked Atomic Operations @@ -3069,6 +3067,8 @@ The SPARC Architecture Manual, Version 9 Appendix D: Formal Specification of the Memory Models Appendix J: Programming with the Memory Models +Storage in the PowerPC (Stone and Fitzgerald) + UltraSPARC Programmer Reference Manual Chapter 5: Memory Accesses and Cacheability Chapter 15: Sparc-V9 Memory Models -- cgit v1.2.3 From 80416fb43e14e443dd18bc395167f73dba271748 Mon Sep 17 00:00:00 2001 From: SeongJae Park Date: Sat, 18 Nov 2017 11:52:24 +0900 Subject: kokr/memory-barriers.txt: Fix typo in paring example This commit applies an upstream change, commit d92f842bb30f ("memory-barriers.txt: Fix typo in pairing example") to the Korean translation. Signed-off-by: SeongJae Park Signed-off-by: Jonathan Corbet --- Documentation/translations/ko_KR/memory-barriers.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/translations/ko_KR/memory-barriers.txt b/Documentation/translations/ko_KR/memory-barriers.txt index 7433ad60fabc..1f99331aeb39 100644 --- a/Documentation/translations/ko_KR/memory-barriers.txt +++ b/Documentation/translations/ko_KR/memory-barriers.txt @@ -953,7 +953,7 @@ ACQUIRE 배리어, RELEASE 배리어, 또는 범용 배리어와 짝을 맞추 =============== =============================== r1 = READ_ONCE(y); <범용 배리어> - WRITE_ONCE(y, 1); if (r2 = READ_ONCE(x)) { + WRITE_ONCE(x, 1); if (r2 = READ_ONCE(x)) { <묵시적 컨트롤 의존성> WRITE_ONCE(y, 1); } -- cgit v1.2.3 From 0cf9bb67f518f1064ec482b790d51a6e02406cba Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 19 Nov 2017 10:02:20 -0800 Subject: documentation/svga.txt: update outdated file Drop CONFIG_VIDEO_400_HACK info completely. Drop CONFIG_VIDEO_RETAIN and CONFIG_VIDEO_LOCAL completely. Drop CONFIG_VIDEO_COMPACT and CONFIG_VIDEO_VESA info completely. Drop CONFIG_VIDEO_SVGA info since it has been removed. Drop chapter number & section number references since they are wrong. Drop (bad) ftp URL for 800x600 Thinkpad XF86Config. Rename CONFIG_VIDEO_GFX_HACK to VIDEO_GFX_HACK since it is not a Kconfig symbol. And to match the source code. Build options are controlled by the kernel kconfig utility. Signed-off-by: Randy Dunlap Acked-By: Martin Mares Cc: "H. Peter Anvin" Signed-off-by: Jonathan Corbet --- Documentation/svga.txt | 59 ++++++++------------------------------------------ 1 file changed, 9 insertions(+), 50 deletions(-) (limited to 'Documentation') diff --git a/Documentation/svga.txt b/Documentation/svga.txt index 119f1515b1ac..b6c2f9acca92 100644 --- a/Documentation/svga.txt +++ b/Documentation/svga.txt @@ -67,8 +67,7 @@ The menu looks like:: tells what video adapter did Linux detect -- it's either a generic adapter name (MDA, CGA, HGC, EGA, VGA, VESA VGA [a VGA with VESA-compliant BIOS]) or a chipset name (e.g., Trident). Direct detection -of chipsets is turned off by default (see CONFIG_VIDEO_SVGA in chapter 4 to see -how to enable it if you really want) as it's inherently unreliable due to +of chipsets is turned off by default as it's inherently unreliable due to absolutely insane PC design. "0 0F00 80x25" means that the first menu item (the menu items are numbered @@ -138,7 +137,7 @@ The ID numbers can be divided to those regions:: 0x0f05 VGA 80x30 (480 scans, 16-point font) 0x0f06 VGA 80x34 (480 scans, 14-point font) 0x0f07 VGA 80x60 (480 scans, 8-point font) - 0x0f08 Graphics hack (see the CONFIG_VIDEO_HACK paragraph below) + 0x0f08 Graphics hack (see the VIDEO_GFX_HACK paragraph below) 0x1000 to 0x7fff - modes specified by resolution. The code has a "0xRRCC" form where RR is a number of rows and CC is a number of columns. @@ -160,58 +159,22 @@ end of the display. Options ~~~~~~~ -Some options can be set in the source text (in arch/i386/boot/video.S). -All of them are simple #define's -- change them to #undef's when you want to -switch them off. Currently supported: - -CONFIG_VIDEO_SVGA - enables autodetection of SVGA cards. This is switched -off by default as it's a bit unreliable due to terribly bad PC design. If you -really want to have the adapter autodetected (maybe in case the ``scan`` feature -doesn't work on your machine), switch this on and don't cry if the results -are not completely sane. In case you really need this feature, please drop me -a mail as I think of removing it some day. - -CONFIG_VIDEO_VESA - enables autodetection of VESA modes. If it doesn't work -on your machine (or displays a "Error: Scanning of VESA modes failed" message), -you can switch it off and report as a bug. - -CONFIG_VIDEO_COMPACT - enables compacting of the video mode list. If there -are more modes with the same screen size, only the first one is kept (see above -for more info on mode ordering). However, in very strange cases it's possible -that the first "version" of the mode doesn't work although some of the others -do -- in this case turn this switch off to see the rest. - -CONFIG_VIDEO_RETAIN - enables retaining of screen contents when switching -video modes. Works only with some boot loaders which leave enough room for the -buffer. (If you have old LILO, you can adjust heap_end_ptr and loadflags -in setup.S, but it's better to upgrade the boot loader...) - -CONFIG_VIDEO_LOCAL - enables inclusion of "local modes" in the list. The -local modes are added automatically to the beginning of the list not depending -on hardware configuration. The local modes are listed in the source text after -the "local_mode_table:" line. The comment before this line describes the format -of the table (which also includes a video card name to be displayed on the -top of the menu). - -CONFIG_VIDEO_400_HACK - force setting of 400 scan lines for standard VGA -modes. This option is intended to be used on certain buggy BIOSes which draw -some useless logo using font download and then fail to reset the correct mode. -Don't use unless needed as it forces resetting the video card. - -CONFIG_VIDEO_GFX_HACK - includes special hack for setting of graphics modes -to be used later by special drivers (e.g., 800x600 on IBM ThinkPad -- see -ftp://ftp.phys.keio.ac.jp/pub/XFree86/800x600/XF86Configs/XF86Config.IBM_TP560). +Build options for arch/x86/boot/* are selected by the kernel kconfig +utility and the kernel .config file. + +VIDEO_GFX_HACK - includes special hack for setting of graphics modes +to be used later by special drivers. Allows to set _any_ BIOS mode including graphic ones and forcing specific text screen resolution instead of peeking it from BIOS variables. Don't use unless you think you know what you're doing. To activate this setup, use -mode number 0x0f08 (see section 3). +mode number 0x0f08 (see the Mode IDs section above). Still doesn't work? ~~~~~~~~~~~~~~~~~~~ When the mode detection doesn't work (e.g., the mode list is incorrect or the machine hangs instead of displaying the menu), try to switch off some of -the configuration options listed in section 4. If it fails, you can still use +the configuration options listed under "Options". If it fails, you can still use your kernel with the video mode set directly via the kernel parameter. In either case, please send me a bug report containing what _exactly_ @@ -228,10 +191,6 @@ contains the most common video BIOS bug called "incorrect vertical display end setting". Adding 0x8000 to the mode ID might fix the problem. Unfortunately, this must be done manually -- no autodetection mechanisms are available. -If you have a VGA card and your display still looks as on EGA, your BIOS -is probably broken and you need to set the CONFIG_VIDEO_400_HACK switch to -force setting of the correct mode. - History ~~~~~~~ -- cgit v1.2.3 From e7e61fc0ba7b92153e17f1f707d2b7b3d52c0588 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 19 Nov 2017 21:08:11 -0800 Subject: Documentation: fix profile= options in kernel-parameters.txt Correctly the formatting of several additions to the profile= option that have been added by using and listing the choices for it. Signed-off-by: Randy Dunlap Signed-off-by: Jonathan Corbet --- Documentation/admin-guide/kernel-parameters.txt | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 97a76eea7389..a0532127807f 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -3223,13 +3223,15 @@ instead using the legacy FADT method profile= [KNL] Enable kernel profiling via /proc/profile - Format: [schedule,] + Format: [,] + Param: : "schedule", "sleep", or "kvm" + [defaults to kernel profiling] Param: "schedule" - profile schedule points. - Param: - step/bucket size as a power of 2 for - statistical time based profiling. Param: "sleep" - profile D-state sleeping (millisecs). Requires CONFIG_SCHEDSTATS Param: "kvm" - profile VM exits. + Param: - step/bucket size as a power of 2 for + statistical time based profiling. prompt_ramdisk= [RAM] List of RAM disks to prompt for floppy disk before loading. -- cgit v1.2.3 From def4db33e69609a43b28b399d569b6a0d3ba272a Mon Sep 17 00:00:00 2001 From: Jonathan Neuschäfer Date: Sat, 18 Nov 2017 03:22:32 +0100 Subject: dt-bindings: trivial-devices: Remove fsl,mc13892 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This device's bindings are not trivial: Additional properties are documented in in Documentation/devicetree/bindings/mfd/mc13xxx.txt. Signed-off-by: Jonathan Neuschäfer Reviewed-by: Fabio Estevam Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/trivial-devices.txt | 1 - 1 file changed, 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt index 4b169caab0eb..21e2d96295fe 100644 --- a/Documentation/devicetree/bindings/trivial-devices.txt +++ b/Documentation/devicetree/bindings/trivial-devices.txt @@ -55,7 +55,6 @@ epson,rx8010 I2C-BUS INTERFACE REAL TIME CLOCK MODULE epson,rx8581 I2C-BUS INTERFACE REAL TIME CLOCK MODULE emmicro,em3027 EM Microelectronic EM3027 Real-time Clock fsl,mag3110 MAG3110: Xtrinsic High Accuracy, 3D Magnetometer -fsl,mc13892 MC13892: Power Management Integrated Circuit (PMIC) for i.MX35/51 fsl,mma7660 MMA7660FC: 3-Axis Orientation/Motion Detection Sensor fsl,mma8450 MMA8450Q: Xtrinsic Low-power, 3-axis Xtrinsic Accelerometer fsl,mpl3115 MPL3115: Absolute Digital Pressure Sensor -- cgit v1.2.3 From 87c9fd81825363237ac5560822e2261535800597 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 15 Nov 2017 10:59:53 -0200 Subject: dt-bindings: rtc: imxdi: Improve the bindings text Improve the bindings text by doing the following changes: - Remove the i.MX53 reference, as the RTC on i.MX53 is a different hardware - Add 'clocks' to the list of required properties - Explain that the optional security violation irq is the second entry - Use the real unit address and irq numbers for i.MX25 Signed-off-by: Fabio Estevam Acked-by: Juergen Borleis Acked-by: Rob Herring Signed-off-by: Alexandre Belloni --- Documentation/devicetree/bindings/rtc/imxdi-rtc.txt | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/rtc/imxdi-rtc.txt b/Documentation/devicetree/bindings/rtc/imxdi-rtc.txt index 323cf26374cb..c797bc9d77d2 100644 --- a/Documentation/devicetree/bindings/rtc/imxdi-rtc.txt +++ b/Documentation/devicetree/bindings/rtc/imxdi-rtc.txt @@ -1,20 +1,20 @@ * i.MX25 Real Time Clock controller -This binding supports the following chips: i.MX25, i.MX53 - Required properties: - compatible: should be: "fsl,imx25-rtc" - reg: physical base address of the controller and length of memory mapped region. +- clocks: should contain the phandle for the rtc clock - interrupts: rtc alarm interrupt Optional properties: -- interrupts: dryice security violation interrupt +- interrupts: dryice security violation interrupt (second entry) Example: -rtc@80056000 { - compatible = "fsl,imx53-rtc", "fsl,imx25-rtc"; - reg = <0x80056000 2000>; - interrupts = <29 56>; +rtc@53ffc000 { + compatible = "fsl,imx25-rtc"; + reg = <0x53ffc000 0x4000>; + clocks = <&clks 81>; + interrupts = <25 56>; }; -- cgit v1.2.3 From c51ff2c7fc45da8b18b28c4f15eca5a9975dfb59 Mon Sep 17 00:00:00 2001 From: Dave Hansen Date: Fri, 10 Nov 2017 16:12:28 -0800 Subject: x86/pkeys: Update documentation about availability Now that CPUs that implement Memory Protection Keys are publicly available we can be a bit less oblique about where it is available. Signed-off-by: Dave Hansen Acked-by: Thomas Gleixner Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Josh Poimboeuf Cc: Linus Torvalds Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20171111001228.DC748A10@viggo.jf.intel.com Signed-off-by: Ingo Molnar --- Documentation/x86/protection-keys.txt | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/x86/protection-keys.txt b/Documentation/x86/protection-keys.txt index fa46dcb347bc..ecb0d2dadfb7 100644 --- a/Documentation/x86/protection-keys.txt +++ b/Documentation/x86/protection-keys.txt @@ -1,5 +1,10 @@ -Memory Protection Keys for Userspace (PKU aka PKEYs) is a CPU feature -which will be found on future Intel CPUs. +Memory Protection Keys for Userspace (PKU aka PKEYs) is a feature +which is found on Intel's Skylake "Scalable Processor" Server CPUs. +It will be avalable in future non-server parts. + +For anyone wishing to test or use this feature, it is available in +Amazon's EC2 C5 instances and is known to work there using an Ubuntu +17.04 image. Memory Protection Keys provides a mechanism for enforcing page-based protections, but without requiring modification of the page tables -- cgit v1.2.3 From 7eeb6b893bd28c68b6d664de1d3120e49b855cdb Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 11 Oct 2017 23:13:49 -0700 Subject: timer: Remove init_timer() interface All users of init_timer() have been updated. Remove the ancient interface. Cc: Thomas Gleixner Cc: Jonathan Corbet Signed-off-by: Kees Cook --- Documentation/core-api/local_ops.rst | 10 +++------- include/linux/timer.h | 3 --- 2 files changed, 3 insertions(+), 10 deletions(-) (limited to 'Documentation') diff --git a/Documentation/core-api/local_ops.rst b/Documentation/core-api/local_ops.rst index 1062ddba62c7..2ac3f9f29845 100644 --- a/Documentation/core-api/local_ops.rst +++ b/Documentation/core-api/local_ops.rst @@ -177,18 +177,14 @@ Here is a sample module which implements a basic per cpu counter using printk("Read : CPU %d, count %ld\n", cpu, local_read(&per_cpu(counters, cpu))); } - del_timer(&test_timer); - test_timer.expires = jiffies + 1000; - add_timer(&test_timer); + mod_timer(&test_timer, jiffies + 1000); } static int __init test_init(void) { /* initialize the timer that will increment the counter */ - init_timer(&test_timer); - test_timer.function = do_test_timer; - test_timer.expires = jiffies + 1; - add_timer(&test_timer); + timer_setup(&test_timer, do_test_timer, 0); + mod_timer(&test_timer, jiffies + 1); return 0; } diff --git a/include/linux/timer.h b/include/linux/timer.h index bf781acfc6d8..a58097ea7cfc 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -117,9 +117,6 @@ static inline void init_timer_on_stack_key(struct timer_list *timer, init_timer_on_stack_key((_timer), (_flags), NULL, NULL) #endif -#define init_timer(timer) \ - __init_timer((timer), 0) - #define __setup_timer(_timer, _fn, _data, _flags) \ do { \ __init_timer((_timer), (_flags)); \ -- cgit v1.2.3 From 553d8e8b107159088cc4e2855a2bd9a358365e3f Mon Sep 17 00:00:00 2001 From: "Tobin C. Harding" Date: Thu, 23 Nov 2017 10:55:24 +1100 Subject: docs: correct documentation for %pK Current documentation indicates that %pK prints a leading '0x'. This is not the case. Correct documentation for printk specifier %pK. Signed-off-by: Tobin C. Harding --- Documentation/printk-formats.txt | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt index 361789df51ec..71b62db7eca2 100644 --- a/Documentation/printk-formats.txt +++ b/Documentation/printk-formats.txt @@ -85,13 +85,12 @@ Examples:: printk("Faulted at %pS\n", (void *)regs->ip); printk(" %s%pB\n", (reliable ? "" : "? "), (void *)*stack); - Kernel Pointers =============== :: - %pK 0x01234567 or 0x0123456789abcdef + %pK 01234567 or 0123456789abcdef For printing kernel pointers which should be hidden from unprivileged users. The behaviour of ``%pK`` depends on the ``kptr_restrict sysctl`` - see -- cgit v1.2.3 From ad67b74d2469d9b82aaa572d76474c95bc484d57 Mon Sep 17 00:00:00 2001 From: "Tobin C. Harding" Date: Wed, 1 Nov 2017 15:32:23 +1100 Subject: printk: hash addresses printed with %p Currently there exist approximately 14 000 places in the kernel where addresses are being printed using an unadorned %p. This potentially leaks sensitive information regarding the Kernel layout in memory. Many of these calls are stale, instead of fixing every call lets hash the address by default before printing. This will of course break some users, forcing code printing needed addresses to be updated. Code that _really_ needs the address will soon be able to use the new printk specifier %px to print the address. For what it's worth, usage of unadorned %p can be broken down as follows (thanks to Joe Perches). $ git grep -E '%p[^A-Za-z0-9]' | cut -f1 -d"/" | sort | uniq -c 1084 arch 20 block 10 crypto 32 Documentation 8121 drivers 1221 fs 143 include 101 kernel 69 lib 100 mm 1510 net 40 samples 7 scripts 11 security 166 sound 152 tools 2 virt Add function ptr_to_id() to map an address to a 32 bit unique identifier. Hash any unadorned usage of specifier %p and any malformed specifiers. Signed-off-by: Tobin C. Harding --- Documentation/printk-formats.txt | 12 ++++- lib/test_printf.c | 108 +++++++++++++++++++++++++-------------- lib/vsprintf.c | 81 ++++++++++++++++++++++++++--- 3 files changed, 155 insertions(+), 46 deletions(-) (limited to 'Documentation') diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt index 71b62db7eca2..b4e668ac4fe3 100644 --- a/Documentation/printk-formats.txt +++ b/Documentation/printk-formats.txt @@ -5,7 +5,6 @@ How to get printk format specifiers right :Author: Randy Dunlap :Author: Andrew Murray - Integer types ============= @@ -45,6 +44,17 @@ return from vsnprintf. Raw pointer value SHOULD be printed with %p. The kernel supports the following extended format specifiers for pointer types: +Pointer Types +============= + +Pointers printed without a specifier extension (i.e unadorned %p) are +hashed to give a unique identifier without leaking kernel addresses to user +space. On 64 bit machines the first 32 bits are zeroed. + +:: + + %p abcdef12 or 00000000abcdef12 + Symbols/Function Pointers ========================= diff --git a/lib/test_printf.c b/lib/test_printf.c index 563f10e6876a..71ebfa43ad05 100644 --- a/lib/test_printf.c +++ b/lib/test_printf.c @@ -24,24 +24,6 @@ #define PAD_SIZE 16 #define FILL_CHAR '$' -#define PTR1 ((void*)0x01234567) -#define PTR2 ((void*)(long)(int)0xfedcba98) - -#if BITS_PER_LONG == 64 -#define PTR1_ZEROES "000000000" -#define PTR1_SPACES " " -#define PTR1_STR "1234567" -#define PTR2_STR "fffffffffedcba98" -#define PTR_WIDTH 16 -#else -#define PTR1_ZEROES "0" -#define PTR1_SPACES " " -#define PTR1_STR "1234567" -#define PTR2_STR "fedcba98" -#define PTR_WIDTH 8 -#endif -#define PTR_WIDTH_STR stringify(PTR_WIDTH) - static unsigned total_tests __initdata; static unsigned failed_tests __initdata; static char *test_buffer __initdata; @@ -217,30 +199,79 @@ test_string(void) test("a | | ", "%-3.s|%-3.0s|%-3.*s", "a", "b", 0, "c"); } +#define PLAIN_BUF_SIZE 64 /* leave some space so we don't oops */ + +#if BITS_PER_LONG == 64 + +#define PTR_WIDTH 16 +#define PTR ((void *)0xffff0123456789ab) +#define PTR_STR "ffff0123456789ab" +#define ZEROS "00000000" /* hex 32 zero bits */ + +static int __init +plain_format(void) +{ + char buf[PLAIN_BUF_SIZE]; + int nchars; + + nchars = snprintf(buf, PLAIN_BUF_SIZE, "%p", PTR); + + if (nchars != PTR_WIDTH || strncmp(buf, ZEROS, strlen(ZEROS)) != 0) + return -1; + + return 0; +} + +#else + +#define PTR_WIDTH 8 +#define PTR ((void *)0x456789ab) +#define PTR_STR "456789ab" + +static int __init +plain_format(void) +{ + /* Format is implicitly tested for 32 bit machines by plain_hash() */ + return 0; +} + +#endif /* BITS_PER_LONG == 64 */ + +static int __init +plain_hash(void) +{ + char buf[PLAIN_BUF_SIZE]; + int nchars; + + nchars = snprintf(buf, PLAIN_BUF_SIZE, "%p", PTR); + + if (nchars != PTR_WIDTH || strncmp(buf, PTR_STR, PTR_WIDTH) == 0) + return -1; + + return 0; +} + +/* + * We can't use test() to test %p because we don't know what output to expect + * after an address is hashed. + */ static void __init plain(void) { - test(PTR1_ZEROES PTR1_STR " " PTR2_STR, "%p %p", PTR1, PTR2); - /* - * The field width is overloaded for some %p extensions to - * pass another piece of information. For plain pointers, the - * behaviour is slightly odd: One cannot pass either the 0 - * flag nor a precision to %p without gcc complaining, and if - * one explicitly gives a field width, the number is no longer - * zero-padded. - */ - test("|" PTR1_STR PTR1_SPACES " | " PTR1_SPACES PTR1_STR "|", - "|%-*p|%*p|", PTR_WIDTH+2, PTR1, PTR_WIDTH+2, PTR1); - test("|" PTR2_STR " | " PTR2_STR "|", - "|%-*p|%*p|", PTR_WIDTH+2, PTR2, PTR_WIDTH+2, PTR2); + int err; - /* - * Unrecognized %p extensions are treated as plain %p, but the - * alphanumeric suffix is ignored (that is, does not occur in - * the output.) - */ - test("|"PTR1_ZEROES PTR1_STR"|", "|%p0y|", PTR1); - test("|"PTR2_STR"|", "|%p0y|", PTR2); + err = plain_hash(); + if (err) { + pr_warn("plain 'p' does not appear to be hashed\n"); + failed_tests++; + return; + } + + err = plain_format(); + if (err) { + pr_warn("hashing plain 'p' has unexpected format\n"); + failed_tests++; + } } static void __init @@ -251,6 +282,7 @@ symbol_ptr(void) static void __init kernel_ptr(void) { + /* We can't test this without access to kptr_restrict. */ } static void __init diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 8dc5cf85cef4..d69452a0f2fa 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -33,6 +33,8 @@ #include #include #include +#include +#include #ifdef CONFIG_BLOCK #include #endif @@ -1644,6 +1646,73 @@ char *device_node_string(char *buf, char *end, struct device_node *dn, return widen_string(buf, buf - buf_start, end, spec); } +static bool have_filled_random_ptr_key __read_mostly; +static siphash_key_t ptr_key __read_mostly; + +static void fill_random_ptr_key(struct random_ready_callback *unused) +{ + get_random_bytes(&ptr_key, sizeof(ptr_key)); + /* + * have_filled_random_ptr_key==true is dependent on get_random_bytes(). + * ptr_to_id() needs to see have_filled_random_ptr_key==true + * after get_random_bytes() returns. + */ + smp_mb(); + WRITE_ONCE(have_filled_random_ptr_key, true); +} + +static struct random_ready_callback random_ready = { + .func = fill_random_ptr_key +}; + +static int __init initialize_ptr_random(void) +{ + int ret = add_random_ready_callback(&random_ready); + + if (!ret) { + return 0; + } else if (ret == -EALREADY) { + fill_random_ptr_key(&random_ready); + return 0; + } + + return ret; +} +early_initcall(initialize_ptr_random); + +/* Maps a pointer to a 32 bit unique identifier. */ +static char *ptr_to_id(char *buf, char *end, void *ptr, struct printf_spec spec) +{ + unsigned long hashval; + const int default_width = 2 * sizeof(ptr); + + if (unlikely(!have_filled_random_ptr_key)) { + spec.field_width = default_width; + /* string length must be less than default_width */ + return string(buf, end, "(ptrval)", spec); + } + +#ifdef CONFIG_64BIT + hashval = (unsigned long)siphash_1u64((u64)ptr, &ptr_key); + /* + * Mask off the first 32 bits, this makes explicit that we have + * modified the address (and 32 bits is plenty for a unique ID). + */ + hashval = hashval & 0xffffffff; +#else + hashval = (unsigned long)siphash_1u32((u32)ptr, &ptr_key); +#endif + + spec.flags |= SMALL; + if (spec.field_width == -1) { + spec.field_width = default_width; + spec.flags |= ZEROPAD; + } + spec.base = 16; + + return number(buf, end, hashval, spec); +} + /* * Show a '%p' thing. A kernel extension is that the '%p' is followed * by an extra set of alphanumeric characters that are extended format @@ -1754,6 +1823,9 @@ char *device_node_string(char *buf, char *end, struct device_node *dn, * Note: The difference between 'S' and 'F' is that on ia64 and ppc64 * function pointers are really function descriptors, which contain a * pointer to the real address. + * + * Note: The default behaviour (unadorned %p) is to hash the address, + * rendering it useful as a unique identifier. */ static noinline_for_stack char *pointer(const char *fmt, char *buf, char *end, void *ptr, @@ -1869,14 +1941,9 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, return device_node_string(buf, end, ptr, spec, fmt + 1); } } - spec.flags |= SMALL; - if (spec.field_width == -1) { - spec.field_width = default_width; - spec.flags |= ZEROPAD; - } - spec.base = 16; - return number(buf, end, (unsigned long) ptr, spec); + /* default is to _not_ leak addresses, hash before printing */ + return ptr_to_id(buf, end, ptr, spec); } /* -- cgit v1.2.3 From 7b1924a1d930eb27fc79c4e4e2a6c1c970623e68 Mon Sep 17 00:00:00 2001 From: "Tobin C. Harding" Date: Thu, 23 Nov 2017 10:59:45 +1100 Subject: vsprintf: add printk specifier %px printk specifier %p now hashes all addresses before printing. Sometimes we need to see the actual unmodified address. This can be achieved using %lx but then we face the risk that if in future we want to change the way the Kernel handles printing of pointers we will have to grep through the already existent 50 000 %lx call sites. Let's add specifier %px as a clear, opt-in, way to print a pointer and maintain some level of isolation from all the other hex integer output within the Kernel. Add printk specifier %px to print the actual unmodified address. Signed-off-by: Tobin C. Harding --- Documentation/printk-formats.txt | 18 +++++++++++++++++- lib/vsprintf.c | 18 ++++++++++++++++++ scripts/checkpatch.pl | 2 +- 3 files changed, 36 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/printk-formats.txt b/Documentation/printk-formats.txt index b4e668ac4fe3..aa0a776c817a 100644 --- a/Documentation/printk-formats.txt +++ b/Documentation/printk-formats.txt @@ -49,7 +49,8 @@ Pointer Types Pointers printed without a specifier extension (i.e unadorned %p) are hashed to give a unique identifier without leaking kernel addresses to user -space. On 64 bit machines the first 32 bits are zeroed. +space. On 64 bit machines the first 32 bits are zeroed. If you _really_ +want the address see %px below. :: @@ -106,6 +107,21 @@ For printing kernel pointers which should be hidden from unprivileged users. The behaviour of ``%pK`` depends on the ``kptr_restrict sysctl`` - see Documentation/sysctl/kernel.txt for more details. +Unmodified Addresses +==================== + +:: + + %px 01234567 or 0123456789abcdef + +For printing pointers when you _really_ want to print the address. Please +consider whether or not you are leaking sensitive information about the +Kernel layout in memory before printing pointers with %px. %px is +functionally equivalent to %lx. %px is preferred to %lx because it is more +uniquely grep'able. If, in the future, we need to modify the way the Kernel +handles printing pointers it will be nice to be able to find the call +sites. + Struct Resources ================ diff --git a/lib/vsprintf.c b/lib/vsprintf.c index d69452a0f2fa..d960aead0336 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -1646,6 +1646,20 @@ char *device_node_string(char *buf, char *end, struct device_node *dn, return widen_string(buf, buf - buf_start, end, spec); } +static noinline_for_stack +char *pointer_string(char *buf, char *end, const void *ptr, + struct printf_spec spec) +{ + spec.base = 16; + spec.flags |= SMALL; + if (spec.field_width == -1) { + spec.field_width = 2 * sizeof(ptr); + spec.flags |= ZEROPAD; + } + + return number(buf, end, (unsigned long int)ptr, spec); +} + static bool have_filled_random_ptr_key __read_mostly; static siphash_key_t ptr_key __read_mostly; @@ -1818,6 +1832,8 @@ static char *ptr_to_id(char *buf, char *end, void *ptr, struct printf_spec spec) * c major compatible string * C full compatible string * + * - 'x' For printing the address. Equivalent to "%lx". + * * ** Please update also Documentation/printk-formats.txt when making changes ** * * Note: The difference between 'S' and 'F' is that on ia64 and ppc64 @@ -1940,6 +1956,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, case 'F': return device_node_string(buf, end, ptr, spec, fmt + 1); } + case 'x': + return pointer_string(buf, end, ptr, spec); } /* default is to _not_ leak addresses, hash before printing */ diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 95cda3ecc66b..040aa79e1d9d 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -5753,7 +5753,7 @@ sub process { for (my $count = $linenr; $count <= $lc; $count++) { my $fmt = get_quoted_string($lines[$count - 1], raw_line($count, 0)); $fmt =~ s/%%//g; - if ($fmt =~ /(\%[\*\d\.]*p(?![\WFfSsBKRraEhMmIiUDdgVCbGNO]).)/) { + if ($fmt =~ /(\%[\*\d\.]*p(?![\WFfSsBKRraEhMmIiUDdgVCbGNOx]).)/) { $bad_extension = $1; last; } -- cgit v1.2.3 From 90daf3062fc0f8f919d5496fe167bbd6016a6a63 Mon Sep 17 00:00:00 2001 From: Michal Hocko Date: Wed, 29 Nov 2017 16:10:58 -0800 Subject: Revert "mm/page-writeback.c: print a warning if the vm dirtiness settings are illogical" This reverts commit 0f6d24f87856 ("mm/page-writeback.c: print a warning if the vm dirtiness settings are illogical") because it causes false positive warnings during OOM situations as noticed by Tetsuo Handa: Node 0 active_anon:3525940kB inactive_anon:8372kB active_file:216kB inactive_file:1872kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:2504kB dirty:52kB writeback:0kB shmem:8660kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 636928kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 0 DMA free:14848kB min:284kB low:352kB high:420kB active_anon:992kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15988kB managed:15904kB mlocked:0kB kernel_stack:0kB pagetables:24kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2687 3645 3645 Node 0 DMA32 free:53004kB min:49608kB low:62008kB high:74408kB active_anon:2712648kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129216kB managed:2773132kB mlocked:0kB kernel_stack:96kB pagetables:5096kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 958 958 Node 0 Normal free:17140kB min:17684kB low:22104kB high:26524kB active_anon:812300kB inactive_anon:8372kB active_file:1228kB inactive_file:1868kB unevictable:0kB writepending:52kB present:1048576kB managed:981224kB mlocked:0kB kernel_stack:3520kB pagetables:8552kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 [...] Out of memory: Kill process 8459 (a.out) score 999 or sacrifice child Killed process 8459 (a.out) total-vm:4180kB, anon-rss:88kB, file-rss:0kB, shmem-rss:0kB oom_reaper: reaped process 8459 (a.out), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB vm direct limit must be set greater than background limit. The problem is that both thresh and bg_thresh will be 0 if available_memory is less than 4 pages when evaluating global_dirtyable_memory. While this might be worked around the whole point of the warning is dubious at best. We do rely on admins to do sensible things when changing tunable knobs. Dirty memory writeback knobs are not any special in that regards so revert the warning rather than adding more hacks to work this around. Debugged by Yafang Shao. Link: http://lkml.kernel.org/r/20171127091939.tahb77nznytcxw55@dhcp22.suse.cz Fixes: 0f6d24f87856 ("mm/page-writeback.c: print a warning if the vm dirtiness settings are illogical") Signed-off-by: Michal Hocko Reported-by: Tetsuo Handa Cc: Yafang Shao Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/sysctl/vm.txt | 7 ------- mm/page-writeback.c | 5 +---- 2 files changed, 1 insertion(+), 11 deletions(-) (limited to 'Documentation') diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index b920423f88cb..5025ff9307e6 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -158,10 +158,6 @@ Note: the minimum value allowed for dirty_bytes is two pages (in bytes); any value lower than this limit will be ignored and the old configuration will be retained. -Note: the value of dirty_bytes also must be set greater than -dirty_background_bytes or the amount of memory corresponding to -dirty_background_ratio. - ============================================================== dirty_expire_centisecs @@ -181,9 +177,6 @@ generating disk writes will itself start writing out dirty data. The total available memory is not equal to total system memory. -Note: dirty_ratio must be set greater than dirty_background_ratio or -ratio corresponding to dirty_background_bytes. - ============================================================== dirty_writeback_centisecs diff --git a/mm/page-writeback.c b/mm/page-writeback.c index e7095030aa1f..586f31261c83 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -433,11 +433,8 @@ static void domain_dirty_limits(struct dirty_throttle_control *dtc) else bg_thresh = (bg_ratio * available_memory) / PAGE_SIZE; - if (unlikely(bg_thresh >= thresh)) { - pr_warn("vm direct limit must be set greater than background limit.\n"); + if (bg_thresh >= thresh) bg_thresh = thresh / 2; - } - tsk = current; if (tsk->flags & PF_LESS_THROTTLE || rt_task(tsk)) { bg_thresh += bg_thresh / 4 + global_wb_domain.dirty_limit / 32; -- cgit v1.2.3 From 68615eb01f82256c19e41967bfb3eef902f77033 Mon Sep 17 00:00:00 2001 From: Peter Rosin Date: Mon, 27 Nov 2017 17:31:00 +0100 Subject: hwmon: (jc42) optionally try to disable the SMBUS timeout With a nxp,se97 chip on an atmel sama5d31 board, the I2C adapter driver is not always capable of avoiding the 25-35 ms timeout as specified by the SMBUS protocol. This may cause silent corruption of the last bit of any transfer, e.g. a one is read instead of a zero if the sensor chip times out. This also affects the eeprom half of the nxp-se97 chip, where this silent corruption was originally noticed. Other I2C adapters probably suffer similar issues, e.g. bit-banging comes to mind as risky... The SMBUS register in the nxp chip is not a standard Jedec register, but it is not special to the nxp chips either, at least the atmel chips have the same mechanism. Therefore, do not special case this on the manufacturer, it is opt-in via the device property anyway. Cc: stable@vger.kernel.org # 4.9+ Signed-off-by: Peter Rosin Acked-by: Rob Herring Signed-off-by: Guenter Roeck --- Documentation/devicetree/bindings/hwmon/jc42.txt | 4 ++++ drivers/hwmon/jc42.c | 21 +++++++++++++++++++++ 2 files changed, 25 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/hwmon/jc42.txt b/Documentation/devicetree/bindings/hwmon/jc42.txt index 07a250498fbb..f569db58f64a 100644 --- a/Documentation/devicetree/bindings/hwmon/jc42.txt +++ b/Documentation/devicetree/bindings/hwmon/jc42.txt @@ -34,6 +34,10 @@ Required properties: - reg: I2C address +Optional properties: +- smbus-timeout-disable: When set, the smbus timeout function will be disabled. + This is not supported on all chips. + Example: temp-sensor@1a { diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c index 5f11dc014ed6..e5234f953a6d 100644 --- a/drivers/hwmon/jc42.c +++ b/drivers/hwmon/jc42.c @@ -22,6 +22,7 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#include #include #include #include @@ -45,6 +46,7 @@ static const unsigned short normal_i2c[] = { #define JC42_REG_TEMP 0x05 #define JC42_REG_MANID 0x06 #define JC42_REG_DEVICEID 0x07 +#define JC42_REG_SMBUS 0x22 /* NXP and Atmel, possibly others? */ /* Status bits in temperature register */ #define JC42_ALARM_CRIT_BIT 15 @@ -75,6 +77,9 @@ static const unsigned short normal_i2c[] = { #define GT_MANID 0x1c68 /* Giantec */ #define GT_MANID2 0x132d /* Giantec, 2nd mfg ID */ +/* SMBUS register */ +#define SMBUS_STMOUT BIT(7) /* SMBus time-out, active low */ + /* Supported chips */ /* Analog Devices */ @@ -495,6 +500,22 @@ static int jc42_probe(struct i2c_client *client, const struct i2c_device_id *id) data->extended = !!(cap & JC42_CAP_RANGE); + if (device_property_read_bool(dev, "smbus-timeout-disable")) { + int smbus; + + /* + * Not all chips support this register, but from a + * quick read of various datasheets no chip appears + * incompatible with the below attempt to disable + * the timeout. And the whole thing is opt-in... + */ + smbus = i2c_smbus_read_word_swapped(client, JC42_REG_SMBUS); + if (smbus < 0) + return smbus; + i2c_smbus_write_word_swapped(client, JC42_REG_SMBUS, + smbus | SMBUS_STMOUT); + } + config = i2c_smbus_read_word_swapped(client, JC42_REG_CONFIG); if (config < 0) return config; -- cgit v1.2.3