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2013-11-07Merge branch 'pm-sleep'Rafael J. Wysocki1-1/+5
* pm-sleep: PM / hibernate: Avoid overflow in hibernate_preallocate_memory()
2013-11-07Merge branch 'pm-cpufreq'Rafael J. Wysocki54-656/+1124
* pm-cpufreq: intel_pstate: skip the driver if ACPI has power mgmt option cpufreq: ondemand: Remove redundant return statement cpufreq: move freq change notifications to cpufreq core cpufreq: distinguish drivers that do asynchronous notifications cpufreq/intel_pstate: Add static declarations to internal functions cpufreq: arm_big_little: reconfigure switcher behavior at run time cpufreq: arm_big_little: add in-kernel switching (IKS) support ARM: vexpress/TC2: register vexpress-spc cpufreq device cpufreq: arm_big_little: add vexpress SPC interface driver ARM: vexpress/TC2: add cpu clock support ARM: vexpress/TC2: add support for CPU DVFS
2013-11-07Merge branch 'pm-cpuidle'Rafael J. Wysocki9-138/+76
* pm-cpuidle: ARM: EXYNOS: Remove incorrect __init annotation from cpuidle driver ARM: EXYNOS: Use dev_err() instead of printk() for cpuidle driver intel_idle: use CPU_TASKS_FROZEN instead of a numeric constant cpuidle: remove cpuidle_unregister_governor() cpuidle: don't call poll_idle_init() for every cpu cpuidle: use drv instead of cpuidle_driver in show_current_driver() cpuidle: call cpuidle_get_driver() from after taking cpuidle_driver_lock cpuidle: replace multiline statements with single line in cpuidle_idle_call() cpuidle: reduce code duplication inside cpuidle_idle_call() cpuidle: merge two if() statements for checking error cases cpuidle: rearrange __cpuidle_register_device() to keep minimal exit points cpuidle: rearrange code in __cpuidle_driver_init() cpuidle: make __cpuidle_driver_init() return void cpuidle: make __cpuidle_device_init() return void cpuidle: Fix comments in cpuidle core cpuidle: fix indentation of cpumask
2013-11-07Merge branch 'pm-devfreq'Rafael J. Wysocki2-23/+11
* pm-devfreq: PM / devfreq: create_freezable_workqueue() doesn't return an ERR_PTR PM / devfreq: Remove duplicate header file inclusion in exynos5_bus.c PM / devfreq: Use devm_* APIs in exynos5_bus.c PM / devfreq: Remove redundant platform_set_drvdata() in exynos5_bus.c PM / devfreq: Fix incorrect usage of IS_ERR_OR_NULL in exynos5_bus.c
2013-11-07Merge branch 'powercap'Rafael J. Wysocki1-1/+1
* powercap: PowerCap: Fix build error with option -Werror=format-security
2013-11-07Merge branch 'acpi-video'Rafael J. Wysocki2-11/+3
* acpi-video: Revert "ACPI / video: Ignore BIOS initial backlight value for HP 250 G1" ACPI / video: Quirk initial backlight level 0 ACPI / video: Fix initial level validity test ACPI / blacklist: fix name of ThinkPad Edge E530
2013-11-07Merge branch 'acpica'Rafael J. Wysocki102-417/+827
* acpica: (35 commits) ACPICA: Add __init for ACPICA initializers/finalizers. ACPICA: Cleanup asmlinkage for ACPICA APIs. ACPICA: Update acpidump related header file changes. ACPICA: Update compilation environment settings. ACPICA: Fix cached object deletion code. ACPICA: Remove dead AOPOBJ_INVALID check. ACPICA: Cleanup useless memset invocations. ACPICA: Fix an ACPI_ALLOCATE_ZEROED() reversal. ACPICA: Fix wrong object length returned by acpi_ut_get_simple_object_size(). ACPICA: Add new statistics interface. ACPICA: Update DMAR table definitions. ACPICA: Update RSDP table definitions. ACPICA: Update namespace dump code. ACPICA: Update check for setting the ANOBJ_IS_EXTERNAL flag. ACPICA: Update default space handlers. ACPICA: Update version to 20130927. ACPICA: Update aclinux.h for new OSL override mechanism. ACPICA: Add support to allow host OS to redefine individual OSL prototypes. ACPICA: Simplify configuration of global ACPI_REDUCED_HARDWARE macro. ACPICA: Fix indentation issues for macro invocations. ...
2013-11-07Merge branch 'acpi-assorted'Rafael J. Wysocki2-7/+2
* acpi-assorted: ACPI / event: remove unneeded NULL pointer check ACPI: Fix spelling mistake in error messages
2013-11-07Merge branch 'acpi-processor'Rafael J. Wysocki3-24/+0
* acpi-processor: ACPI / processor: Do not request ACPI cpufreq module directly
2013-11-07ACPI / event: remove unneeded NULL pointer checkMathias Krause1-5/+0
nla_data() cannot return NULL as it simply adds NLA_HDRLEN to the passed pointer. The NULL pointer check is therefore superfluous. Remove it. Found by smatch: drivers/acpi/event.c:130 acpi_bus_generate_netlink_event() warn: can 'event' even be NULL? Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-11-07Revert "ACPI / video: Ignore BIOS initial backlight value for HP 250 G1"Aaron Lu1-8/+0
This reverts commit e37f14a5fb85522f3bbf88ece6134c4e610ed598. It turned out other systems also share the same problem with bug 63111 so I made a patch to catch initial brightness level 0 problem. With that patch applied, we do not need to place HP 250 G1 in DMI table. References: https://bugzilla.kernel.org/show_bug.cgi?id=63111 Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-11-07ACPI / video: Quirk initial backlight level 0Aaron Lu1-1/+1
Some firmware doesn't initialize initial backlight level to a proper value and _BQC will return 0 on first time evaluation. We used to be able to detect such incorrect value with our code logic, as value 0 normally isn't a valid value in _BCL. But with the introduction of Win8, firmware begins to fill _BCL with values from 0 to 100, now 0 becomes a valid value but that value will make user's screen black. This patch test initial _BQC for value 0, if such a value is returned, do not use it. References: https://bugzilla.kernel.org/show_bug.cgi?id=64031 References: https://bugzilla.kernel.org/show_bug.cgi?id=61231 References: https://bugzilla.kernel.org/show_bug.cgi?id=63111 Reported-by: Qingshuai Tian <qingshuai.tian@intel.com> Tested-by: Aaron Lu <aaron.lu@intel.com> # on "Idealpad u330p" Reported-and-tested-by: <erno@iki.fi> # on "Acer Aspire V5-573G" Reported-and-tested-by: Kirill Tkhai <tkhai@yandex.ru> # on "HP 250 G1" Signed-off-by: Aaron Lu <aaron.lu@intel.com> Cc: All applicable <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-11-07ACPI / video: Fix initial level validity testAaron Lu1-1/+1
When testing if the firmware's initial value is valid, we should use the corrected level value instead of the raw value returned from firmware. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-11-07intel_pstate: skip the driver if ACPI has power mgmt optionAdrian Huang1-0/+74
Do not load the Intel pstate driver if the platform firmware (ACPI BIOS) supports the power management alternatives. The ACPI BIOS indicates that the OS control mode can be used if the _PSS (Performance Supported States) is defined in ACPI table. For the OS control mode, the Intel pstate driver will be loaded. HP BIOS has several power management modes (firmware, OS-control and so on). For the OS control mode in HP BIOS, the Intel p-state driver will be loaded. When the customer chooses the firmware power management in HP BIOS, the Intel p-state driver will be ignored. I put hw_vendor_info vendor_info in case other vendors (Dell, Lenovo...) have their firmware power management. Vendors should make sure their firmware power management works properly, and they can go for adding their vendor info to the variable. I have verified the patch on HP ProLiant servers. The patch worked correctly. Signed-off-by: Adrian Huang <adrianhuang0701@gmail.com> [rjw: Fixed up !CONFIG_ACPI build] [Linda Knippers: As Adrian has recently left HP, I retested the updated patch on an HP ProLiant server and verified that it is behaving correctly. When the BIOS is configured for OS control for power management, the intel_pstate driver loads as expected. When the BIOS is configured to provide the power management, the intel_pstate driver does not load and we get the pcc_cpufreq driver instead.] Signed-off-by: Linda Knippers <linda.knippers@hp.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-11-07PM / hibernate: Avoid overflow in hibernate_preallocate_memory()Aaron Lu1-1/+5
When system has a lot of highmem (e.g. 16GiB using a 32 bits kernel), the code to calculate how much memory we need to preallocate in normal zone may cause overflow. As Leon has analysed: It looks that during computing 'alloc' variable there is overflow: alloc = (3943404 - 1970542) - 1978280 = -5418 (signed) And this function goes to err_out. Fix this by avoiding that overflow. References: https://bugzilla.kernel.org/show_bug.cgi?id=60817 Reported-and-tested-by: Leon Drugi <eyak@wp.pl> Cc: All applicable <stable@vger.kernel.org> Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-11-06ACPI / blacklist: fix name of ThinkPad Edge E530Felipe Contreras1-1/+1
That is the advertised name. http://shop.lenovo.com/us/en/laptops/thinkpad/edge-series/e530/ Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-11-05PowerCap: Fix build error with option -Werror=format-securitySrinivas Pandruvada1-1/+1
Fix compile error with gcc option: -Werror=format-security for dev_set_name(&control_type->dev, name). Changed to dev_set_name(&control_type->dev, "%s", name). Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-11-01cpufreq: ondemand: Remove redundant return statementStratos Karafotis1-1/+0
After commit dfa5bb622555 (cpufreq: ondemand: Change the calculation of target frequency), this return statement is no longer needed. Reported-by: Henrik Nilsson <Karl.Henrik.Nilsson@gmail.com> Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Add __init for ACPICA initializers/finalizers.Lv Zheng7-16/+15
This patch adds __init to the ACPICA documented initializers: acpi_initialize_tables() acpi_initialize_subsystem() acpi_load_tables() acpi_enable_subsystem() acpi_initialize_objects() and to acpi_reallocate_root_table(), acpi_find_root_pointer() which are also meant to be called only during initialization. This patch adds __init to the ACPICA documented finalizer: acpi_terminate() as this finalizer is only called in __init function now. This change helps to reduce source code differences between ACPICA upstream and Linux. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Cleanup asmlinkage for ACPICA APIs.Lv Zheng6-6/+19
Add an asmlinkage wrapper around acpi_enter_sleep_state() to prevent an empty stub from being called by assmebly code for ACPI_REDUCED_HARDWARE set. As arch/x86/kernel/acpi/wakeup_xx.S is only compiled when CONFIG_ACPI=y and there are no users of ACPI_HARDWARE_REDUCED, currently this is in fact not a real issue, but a cleanup to reduce source code differences between Linux and ACPICA upstream. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Update acpidump related header file changes.Lv Zheng2-2/+11
This patch updates header files used by acpidump to reduce the source code differences between Linux and ACPICA upstream. This patch does not affect the generation of the Linux kernel binary. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Update compilation environment settings.Lv Zheng1-0/+3
This patch updates architecture specific environment settings to reduce source differences between Linux and ACPICA upstream. This patch does not affect the generation of the Linux kernel binary. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Fix cached object deletion code.Lv Zheng1-2/+2
Function acpi_ut_delete_caches() is meant to be used to implement ACPI_ALLOCATE()/ACPI_FREE() mechanisms in ACPICA, so it should call acpi_os_free() rather than ACPI_FREE(). Linux is not affected by this issue as it uses kmem_cache instead of the ACPICA local cache, but the change helps to reduce source code differences between Linux and ACPICA upstream. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Remove dead AOPOBJ_INVALID check.Lv Zheng1-6/+0
Reversion commit 7cb7f45c7fee (Revert "ACPICA: Remove obsolete acpi_os_validate_address interface") restored a piece of dead code related to an obselete AOPOBJ_INVALID flag. Remove that code again. This helps to reduce source code differences between Linux and ACPICA upstream. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Cleanup useless memset invocations.Lv Zheng2-2/+0
This patch removes unnecessary memset() invocations where kmem_cache_zalloc() is used for allocating memory. It also helps to reduce source code differences between ACPICA upstream and Linux. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Fix an ACPI_ALLOCATE_ZEROED() reversal.Lv Zheng1-1/+1
ACPI_FREE() should always be used to free objects allocated with ACPI_ALLOCATE_ZEROED(), so make acpi_ut_create_package_object() do that. This patch ports a fix from ACPICA upstream to Linux and helps to reduce source code differences between them. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Fix wrong object length returned by acpi_ut_get_simple_object_size().Lv Zheng1-10/+13
The object length returned by acpi_ut_get_simple_object_size() should be rounded up to the closest word boundary. This patch ports a fix from ACPICA upstream to Linux. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Add new statistics interface.Lv Zheng7-0/+66
This patch ports new counters and statistics interface, already implemented in ACPICA upstream, to Linux. That helps to reduce source code differences between Linux and ACPICA upstream. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Update DMAR table definitions.Lv Zheng3-8/+8
This patch updates DMAR table header definitions as such enhancement has been made in ACPICA upstream already. It ports that change to the Linux source to reduce source code differences between Linux and ACPICA upstream. Build test done on x86-64 machine with the following configs enabled: CONFIG_DMAR_TABLE CONFIG_IRQ_REMAP CONFIG_INTEL_IOMMU This patch does not affect the generation of the Linux kernel binary. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Update RSDP table definitions.Lv Zheng1-1/+18
This patch updates RSDP table header definitions as such enhancement has been made in ACPICA upstream already. It ports that change to the Linux source to reduce source code differences between Linux and ACPICA upstream. This patch does not affect the generation of the Linux kernel binary. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Update namespace dump code.Lv Zheng1-2/+5
This patch merges namespace dump code updates from ACPICA upstream to reduce the source code differences between Linux and ACPICA upstream. No functional changes as currently nsdumpdv.c is not used by Linux. This patch does not affect the generation of the Linux kernel binary. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Update check for setting the ANOBJ_IS_EXTERNAL flag.Lv Zheng1-1/+2
The ANOBJ_IS_EXTERNAL flag is only used by an ACPICA utilities - iASL. No functional change for the Linux kernel should results from applying this patch, but it helps to reduce source code differences between the kernel and ACPICA upstream. [rjw: Subject and changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Update default space handlers.Lv Zheng1-0/+1
This patch adds code that is already in ACPICA upstream, so applying it can help to reduce the source code differences between Linux and ACPICA upstream. This code fragment is only useful for ACPICA utilities and no functional changes to the Linux kernel should result from it. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Update version to 20130927.Bob Moore1-1/+1
Version 20130927. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Update aclinux.h for new OSL override mechanism.Lv Zheng2-45/+91
The new ACPICA OSL override mechanism is used to solve these issues for the Linux OSL: 1. Linux can implement OSL using a macro. 2. Linux can implement OSL using an inlined function. 3. Linux can leave OSL not implemented for __KERNEL__ undefined code fragments. 4. Linux can add sparse declarators (__iomem) to OSL. 5. Linux can add memory tuning declarators (__init/__exit) to OSL. This patch also moves Linux specific OSL to aclinux.h which has not been maintained in the ACPICA code base. Lv Zheng. Known issue: From ACPICA's perspective, actypes.h should be included after inclusion of acenv.h. But currently in Linux, aclinux.h included by acenv.h has included actypes.h to find ACPICA types for inline functions. This is a known and existing issue and currently there is no real problem caused by this issue for Linux kernel build. Thus this issue is not covered by this cleanup commit. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Add support to allow host OS to redefine individual OSL prototypes.Lv Zheng2-3/+137
This change enables the host OS to redefine OSL prototypes found in the acpiosxf.h file. This allows the host OS to implement OSL interfaces with a macro or inlined function. Further, it allows the host OS to add any additional required modifiers such as __iomem, __init, __exit, etc., as necessary on a per-interface basis. Enables maximum flexibility for the OSL interfaces. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Simplify configuration of global ACPI_REDUCED_HARDWARE macro.Bob Moore1-0/+2
Surround definition of this with a #ifndef so that the kernel can define it elsewhere if desired. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Fix indentation issues for macro invocations.Lv Zheng5-8/+25
During the automatic translation of the upstream ACPICA source code into Linux kernel source code some extra white spaces are added by the "indent" program at the beginning of each line which is an invocation of a macro and there is no ";" at the end of the line. For this reason, a new mode has been added to the translation scripts to remove the extra spaces inserted before invoking such macros and add an empty line between the invocations of such macros (like the other function declarations). This new mode is executed after executing "indent" during the Linux release process. Consequently, some existing ACPICA source code in the Linux kernel tree needs to be adjusted to allow the new scripts to work correctly. The affected macros and files are: 1. ACPI_HW_DEPENDENT_RETURN (acpixf.h/acdebug.h/acevents.h): This macro is used as a wrapper for hardware dependent APIs to offer a stub when the reduced hardware is configured during compilation. 2. ACPI_EXPORT_SYMBOL (utglobal.c): This macro is used by Linux to export symbols to be found by Linux modules. All such invocations are well formatted except those exported as global variables. This can help to reduce the source code differences between Linux and upstream ACPICA, and also help to automate the release process. No functional or binary generation changes should result from it. Lv Zheng. [rjw: Changelog] Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Prevent possible build issues for use of ACPI_PRINTF_LIKE macroLv Zheng1-13/+16
The following build error: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CC arch/x86/kernel/setup.o In file included from include/acpi/acpi.h:64:0, from include/linux/iscsi_ibft.h:24, from arch/x86/kernel/setup.c:43: include/acpi/acpixf.h:543:1: error: expected ',' or ';' before '{' token include/acpi/acpixf.h:540:1: warning: 'acpi_error' declared 'static' but never defined [-Wunused-function] make[2]: *** [arch/x86/kernel/setup.o] Error 1 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ can be triggerred by the following stub function (if implemented): ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ static inline void ACPI_INTERNAL_VAR_XFACE acpi_error(const char *module_name, u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3) { } ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This patch changes the position of ACPI_PRINTF_LIKE(x) to follow the style of __printf(x, x+1) used in Linux to prevent such issues from happening. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Deploy ACPI_EXPORT_SYMBOL_INIT for main ACPICA initialization ↵Lv Zheng5-8/+25
interfaces. This changes can reduce source code differences between Linux and ACPICA upstream to help improving the release automation. The side effect of applying this patch in Linux is: 1. Some ACPICA initialization/termination APIs are no longer exported in Linux, these include: acpi_load_tables acpi_initialize_subsystem acpi_enable_subsystem acpi_initialize_objects acpi_terminate 2. This patch does not affect the following APIs as they are currently not marked with ACPI_EXPORT_SYMBOL in Linux: acpi_reallocate_root_table acpi_initialize_tables Such functions should not be exported as they are internal to ACPI subsystem in Linux, and will only be invoked inside of ACPI subsystem's initialization routines marked with __init and termination routines marked with __exit. While on other OSPMs, such functions may still need to be exported. Thus this patch adds the configurability for ACPICA, so that it leaves OSPMs to determine if the __init/__exit marked functions should be exported or not. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Linuxize: Change indentation of C labels.Lv Zheng60-112/+112
It is reported by kernel build test systems that all ACPICA source files in the kernel tree have incorrect label indentation. This patch changes default indent option used in the release process to fix this bug. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Clarify ACPI_FREE_BUFFER usage.Bob Moore2-4/+8
Add a comment to clarify reason for using ACPI_FREE_BUFFER directly instead of ACPI_FREE. In addition to that, change one instance in which ACPI_FREE_BUFFER() should be used instead of ACPI_FREE(). [rjw: Subject and changelog] Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ACPICA: Add EXPORT_ACPI_INTERFACES macro to external interface modules.Lv Zheng21-24/+45
For Linux, there are no functional changes/binary generation differences introduced by this patch. This change adds a new macro to all files that contain external ACPICA interfaces. It can be detected and used by the host (via the host-specific header) for any special processing required for such modules. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31cpufreq: move freq change notifications to cpufreq coreViresh Kumar40-624/+198
Most of the drivers do following in their ->target_index() routines: struct cpufreq_freqs freqs; freqs.old = old freq... freqs.new = new freq... cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE); /* Change rate here */ cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE); This is replicated over all cpufreq drivers today and there doesn't exists a good enough reason why this shouldn't be moved to cpufreq core instead. There are few special cases though, like exynos5440, which doesn't do everything on the call to ->target_index() routine and call some kind of bottom halves for doing this work, work/tasklet/etc.. They may continue doing notification from their own code as flag: CPUFREQ_ASYNC_NOTIFICATION is already set for them. All drivers are also modified in this patch to avoid breaking 'git bisect', as double notification would happen otherwise. Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Russell King <linux@arm.linux.org.uk> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Nicolas Pitre <nicolas.pitre@linaro.org> Reviewed-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31cpufreq: distinguish drivers that do asynchronous notificationsViresh Kumar3-1/+9
There are few special cases like exynos5440 which doesn't send POSTCHANGE notification from their ->target() routine and call some kind of bottom halves for doing this work, work/tasklet/etc.. From which they finally send POSTCHANGE notification. Its better if we distinguish them from other cpufreq drivers in some way so that core can handle them specially. So this patch introduces another flag: CPUFREQ_ASYNC_NOTIFICATION, which will be set by such drivers. This also changes exynos5440-cpufreq.c and powernow-k8 in order to set this flag. Acked-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31cpufreq/intel_pstate: Add static declarations to internal functionsDirk Brandewie1-2/+2
Fixes warnings reported by kbuild test robot sparse warnings: (new ones prefixed by >>) drivers/cpufreq/intel_pstate.c:729:6: sparse: symbol 'copy_pid_params' was not declared. Should it be static? drivers/cpufreq/intel_pstate.c:739:6: sparse: symbol 'copy_cpu_funcs' was not declared. Should it be static? Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31cpufreq: arm_big_little: reconfigure switcher behavior at run timeNicolas Pitre1-3/+51
The b.L switcher can be turned on/off at run time. It is therefore necessary to change the cpufreq driver behavior accordingly. The driver must be unregistered/registered with the cpufreq core to reconfigure freq tables for the virtual or actual CPUs. This is accomplished via the b.L switcher notifier callback. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31cpufreq: arm_big_little: add in-kernel switching (IKS) supportViresh Kumar2-31/+337
This patch adds IKS (In Kernel Switcher) support to cpufreq driver. This creates a combined freq table for A7-A15 CPU pairs. A7 frequencies are virtualized and scaled down to half the actual frequencies to approximate a linear scale across the combined A7+A15 range. When the requested frequency change crosses the A7-A15 boundary a cluster switch is invoked. Based on earlier work from Sudeep KarkadaNagesha. Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ARM: EXYNOS: Remove incorrect __init annotation from cpuidle driverJingoo Han1-1/+1
When platform_driver_probe() is not used, bind/unbind via sysfs is enabled. Thus, __init annotation should be removed from probe(). Also, this patch fixes section mismatch warning. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-10-31ARM: EXYNOS: Use dev_err() instead of printk() for cpuidle driverJingoo Han1-2/+2
Change raw printk() call to dev_err() to provide a better message to userspace so it can properly identify the device. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-24 17:32:13 +0300