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2019-09-29Merge branch 'linus' of ↵Linus Torvalds3-382/+113
git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal Pull thermal SoC updates from Eduardo Valentin: "This is a really small pull in the midst of a lot of pending patches. We are in the middle of restructuring how we are maintaining the thermal subsystem, as per discussion in our last LPC. For now, I am sending just some changes that were pending in my tree. Looking forward to get a more streamlined process in the next merge window" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: thermal: db8500: Rewrite to be a pure OF sensor thermal: db8500: Use dev helper variable thermal: db8500: Finalize device tree conversion thermal: thermal_mmio: remove some dead code
2019-09-27Merge branch 'for-5.4' of ↵Linus Torvalds14-57/+176
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: - Add Amit Kucheria as thermal subsystem Reviewer (Amit Kucheria) - Fix a use after free bug when unregistering thermal zone devices (Ido Schimmel) - Fix thermal core framework to use put_device() when device_register() fails (Yue Hu) - Enable intel_pch_thermal and MMIO RAPL support for Intel Icelake platform (Srinivas Pandruvada) - Add clock operations in qorip thermal driver, for some platforms with clock control like i.MX8MQ (Anson Huang) - A couple of trivial fixes and cleanups for thermal core and different soc thermal drivers (Amit Kucheria, Christophe JAILLET, Chuhong Yuan, Fuqian Huang, Kelsey Skunberg, Nathan Huckleberry, Rishi Gupta, Srinivas Kandagatla) * 'for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: MAINTAINERS: Add Amit Kucheria as reviewer for thermal thermal: Add some error messages thermal: Fix use-after-free when unregistering thermal zone device thermal/drivers/core: Use put_device() if device_register() fails thermal_hwmon: Sanitize thermal_zone type thermal: intel: Use dev_get_drvdata thermal: intel: int3403: replace printk(KERN_WARN...) with pr_warn(...) thermal: intel: int340x_thermal: Remove unnecessary acpi_has_method() uses thermal: int340x: processor_thermal: Add Ice Lake support drivers: thermal: qcom: tsens: Fix memory leak from qfprom read thermal: tegra: Fix a typo thermal: rcar_gen3_thermal: Replace devm_add_action() followed by failure action with devm_add_action_or_reset() thermal: armada: Fix -Wshift-negative-value dt-bindings: thermal: qoriq: Add optional clocks property thermal: qoriq: Use __maybe_unused instead of #if CONFIG_PM_SLEEP thermal: qoriq: Use devm_platform_ioremap_resource() instead of of_iomap() thermal: qoriq: Fix error path of calling qoriq_tmu_register_tmu_zone fail thermal: qoriq: Add clock operations drivers: thermal: processor_thermal_device: Export sysfs interface for TCC offset
2019-09-25thermal: db8500: Rewrite to be a pure OF sensorLinus Walleij1-370/+107
This patch rewrites the DB8500 thermal sensor to be a pure OF sensor, so that it can be used with thermal zones defined in the device tree. This driver was initially merged before we had generic thermal zone device tree bindings, and now it gets modernized to the way we do things these days. The old driver depended on a set of trigger points provided in the device tree or platform data to interpolate the current temperature between trigger points depending on whether the trend was rising or falling. This was bad because the trigger points should be used for defining temperature zone policies and bind to cooling devices. As the PRCMU (power reset control management unit) can only issue IRQs when we pass temperature trigger points upward or downward We instead define a number of temperature points inside the driver ranging from 15 to 100 degrees celsius. The effect is that when we register the device we quickly trigger 15, 20 ... up to the room temperature in succession and then we get continous event IRQs also under normal operating conditions, and the temperature of the system is now reported more accurately (+/- 2.5 degrees celsius) while in the past the first trigger point was at 70 degrees and the average temperature was simply reported as 35 degrees celsius (between 70 degrees and 0) until we passed 70 degrees which didn't accurately represent the temperature of the system. As a result of dropping all the trigger points from the driver and reusing the core DT thermal zone management code we reduce the code footprint quite a bit. Cc: Vincent Guittot <vincent.guittot@linaro.org> Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-09-25thermal: db8500: Use dev helper variableLinus Walleij1-15/+16
The code gets easier to read like this. Cc: Vincent Guittot <vincent.guittot@linaro.org> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-09-25thermal: db8500: Finalize device tree conversionLinus Walleij2-16/+16
At some point there was an attempt to convert the DB8500 thermal sensor to device tree: a probe path was added and the device tree was augmented for the Snowball board. The switchover was never completed: instead the thermal devices came from from the PRCMU MFD device and the probe on the Snowball was confused as another set of configuration appeared from the device tree. Move over to a device-tree only approach, as we fixed up the device trees. Cc: Vincent Guittot <vincent.guittot@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-09-24Merge branches 'thermal-core', 'thermal-intel' and 'thermal-soc' into for-5.4Zhang Rui12-38/+143
2019-09-24thermal: Add some error messagesAmit Kucheria1-4/+13
When registering a thermal zone device, we currently return -EINVAL in four cases. This makes it a little hard to debug the real cause of the failure. Print some error messages to make it easier for developer to figure out what happened. Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-09-24thermal: Fix use-after-free when unregistering thermal zone deviceIdo Schimmel1-1/+1
thermal_zone_device_unregister() cancels the delayed work that polls the thermal zone, but it does not wait for it to finish. This is racy with respect to the freeing of the thermal zone device, which can result in a use-after-free [1]. Fix this by waiting for the delayed work to finish before freeing the thermal zone device. Note that thermal_zone_device_set_polling() is never invoked from an atomic context, so it is safe to call cancel_delayed_work_sync() that can block. [1] [ +0.002221] ================================================================== [ +0.000064] BUG: KASAN: use-after-free in __mutex_lock+0x1076/0x11c0 [ +0.000016] Read of size 8 at addr ffff8881e48e0450 by task kworker/1:0/17 [ +0.000023] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.2.0-rc6-custom-02495-g8e73ca3be4af #1701 [ +0.000010] Hardware name: Mellanox Technologies Ltd. MSN2100-CB2FO/SA001017, BIOS 5.6.5 06/07/2016 [ +0.000016] Workqueue: events_freezable_power_ thermal_zone_device_check [ +0.000012] Call Trace: [ +0.000021] dump_stack+0xa9/0x10e [ +0.000020] print_address_description.cold.2+0x9/0x25e [ +0.000018] __kasan_report.cold.3+0x78/0x9d [ +0.000016] kasan_report+0xe/0x20 [ +0.000016] __mutex_lock+0x1076/0x11c0 [ +0.000014] step_wise_throttle+0x72/0x150 [ +0.000018] handle_thermal_trip+0x167/0x760 [ +0.000019] thermal_zone_device_update+0x19e/0x5f0 [ +0.000019] process_one_work+0x969/0x16f0 [ +0.000017] worker_thread+0x91/0xc40 [ +0.000014] kthread+0x33d/0x400 [ +0.000015] ret_from_fork+0x3a/0x50 [ +0.000020] Allocated by task 1: [ +0.000015] save_stack+0x19/0x80 [ +0.000015] __kasan_kmalloc.constprop.4+0xc1/0xd0 [ +0.000014] kmem_cache_alloc_trace+0x152/0x320 [ +0.000015] thermal_zone_device_register+0x1b4/0x13a0 [ +0.000015] mlxsw_thermal_init+0xc92/0x23d0 [ +0.000014] __mlxsw_core_bus_device_register+0x659/0x11b0 [ +0.000013] mlxsw_core_bus_device_register+0x3d/0x90 [ +0.000013] mlxsw_pci_probe+0x355/0x4b0 [ +0.000014] local_pci_probe+0xc3/0x150 [ +0.000013] pci_device_probe+0x280/0x410 [ +0.000013] really_probe+0x26a/0xbb0 [ +0.000013] driver_probe_device+0x208/0x2e0 [ +0.000013] device_driver_attach+0xfe/0x140 [ +0.000013] __driver_attach+0x110/0x310 [ +0.000013] bus_for_each_dev+0x14b/0x1d0 [ +0.000013] driver_register+0x1c0/0x400 [ +0.000015] mlxsw_sp_module_init+0x5d/0xd3 [ +0.000014] do_one_initcall+0x239/0x4dd [ +0.000013] kernel_init_freeable+0x42b/0x4e8 [ +0.000012] kernel_init+0x11/0x18b [ +0.000013] ret_from_fork+0x3a/0x50 [ +0.000015] Freed by task 581: [ +0.000013] save_stack+0x19/0x80 [ +0.000014] __kasan_slab_free+0x125/0x170 [ +0.000013] kfree+0xf3/0x310 [ +0.000013] thermal_release+0xc7/0xf0 [ +0.000014] device_release+0x77/0x200 [ +0.000014] kobject_put+0x1a8/0x4c0 [ +0.000014] device_unregister+0x38/0xc0 [ +0.000014] thermal_zone_device_unregister+0x54e/0x6a0 [ +0.000014] mlxsw_thermal_fini+0x184/0x35a [ +0.000014] mlxsw_core_bus_device_unregister+0x10a/0x640 [ +0.000013] mlxsw_devlink_core_bus_device_reload+0x92/0x210 [ +0.000015] devlink_nl_cmd_reload+0x113/0x1f0 [ +0.000014] genl_family_rcv_msg+0x700/0xee0 [ +0.000013] genl_rcv_msg+0xca/0x170 [ +0.000013] netlink_rcv_skb+0x137/0x3a0 [ +0.000012] genl_rcv+0x29/0x40 [ +0.000013] netlink_unicast+0x49b/0x660 [ +0.000013] netlink_sendmsg+0x755/0xc90 [ +0.000013] __sys_sendto+0x3de/0x430 [ +0.000013] __x64_sys_sendto+0xe2/0x1b0 [ +0.000013] do_syscall_64+0xa4/0x4d0 [ +0.000013] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ +0.000017] The buggy address belongs to the object at ffff8881e48e0008 which belongs to the cache kmalloc-2k of size 2048 [ +0.000012] The buggy address is located 1096 bytes inside of 2048-byte region [ffff8881e48e0008, ffff8881e48e0808) [ +0.000007] The buggy address belongs to the page: [ +0.000012] page:ffffea0007923800 refcount:1 mapcount:0 mapping:ffff88823680d0c0 index:0x0 compound_mapcount: 0 [ +0.000020] flags: 0x200000000010200(slab|head) [ +0.000019] raw: 0200000000010200 ffffea0007682008 ffffea00076ab808 ffff88823680d0c0 [ +0.000016] raw: 0000000000000000 00000000000d000d 00000001ffffffff 0000000000000000 [ +0.000007] page dumped because: kasan: bad access detected [ +0.000012] Memory state around the buggy address: [ +0.000012] ffff8881e48e0300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ +0.000012] ffff8881e48e0380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ +0.000012] >ffff8881e48e0400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ +0.000008] ^ [ +0.000012] ffff8881e48e0480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ +0.000012] ffff8881e48e0500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ +0.000007] ================================================================== Fixes: b1569e99c795 ("ACPI: move thermal trip handling to generic thermal layer") Reported-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-09-24thermal/drivers/core: Use put_device() if device_register() failsYue Hu1-12/+13
Never directly free @dev after calling device_register(), even if it returned an error! Always use put_device() to give up the reference initialized. Clean up the rollback block also. Signed-off-by: Yue Hu <huyue2@yulong.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-09-24thermal_hwmon: Sanitize thermal_zone typeStefan Mavrodiev1-2/+6
When calling thermal_add_hwmon_sysfs(), the device type is sanitized by replacing '-' with '_'. However tz->type remains unsanitized. Thus calling thermal_hwmon_lookup_by_type() returns no device. And if there is no device, thermal_remove_hwmon_sysfs() fails with "hwmon device lookup failed!". The result is unregisted hwmon devices in the sysfs. Fixes: 409ef0bacacf ("thermal_hwmon: Sanitize attribute name passed to hwmon") Signed-off-by: Stefan Mavrodiev <stefan@olimex.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-09-24thermal: intel: Use dev_get_drvdataChuhong Yuan1-4/+2
Instead of using to_pci_dev + pci_get_drvdata, use dev_get_drvdata to make code simpler. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-09-24thermal: intel: int3403: replace printk(KERN_WARN...) with pr_warn(...)Rishi Gupta1-1/+1
Direct invocation of printk() is not preferred to emit logs. This commit replaces printk(KERN_WARNING) with corresponding pr_warn() function call. Signed-off-by: Rishi Gupta <gupt21@gmail.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-09-24thermal: intel: int340x_thermal: Remove unnecessary acpi_has_method() usesKelsey Skunberg1-6/+0
acpi_evaluate_object() will already return in error if the method does not exist. Checking if the method is absent before the acpi_evaluate_object() call is not needed. Remove acpi_has_method() calls to avoid additional work. Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-09-24thermal: int340x: processor_thermal: Add Ice Lake supportSrinivas Pandruvada1-0/+5
Add new PCI id for Ice lake processor thermal device. Also enabled the RAPL mmio interface. The MMIO offsets match Skylake. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-09-22thermal: thermal_mmio: remove some dead codeDan Carpenter1-7/+0
The platform_get_resource() function doesn't return error pointers, it returns NULL. The way this is normally done, is that we pass the NULL resource to devm_ioremap_resource() and then check for errors from that. See the comment in front of devm_ioremap_resource() for more details. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Talel Shenhar <talel@amazon.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-09-17Merge branch 'pm-cpufreq'Rafael J. Wysocki1-84/+26
* pm-cpufreq: (36 commits) cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist cpufreq: qcom: Add support for qcs404 on nvmem driver cpufreq: qcom: Refactor the driver to make it easier to extend cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR dt-bindings: opp: qcom-nvmem: Support pstates provided by a power domain Documentation: cpufreq: Update policy notifier documentation cpufreq: Remove CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events sched/cpufreq: Align trace event behavior of fast switching ACPI: cpufreq: Switch to QoS requests instead of cpufreq notifier video: pxafb: Remove cpufreq policy notifier video: sa1100fb: Remove cpufreq policy notifier arch_topology: Use CPUFREQ_CREATE_POLICY instead of CPUFREQ_NOTIFY cpufreq: powerpc_cbe: Switch to QoS requests for freq limits cpufreq: powerpc: macintosh: Switch to QoS requests for freq limits cpufreq: Print driver name if cpufreq_suspend() fails cpufreq: mediatek: Add support for mt8183 cpufreq: mediatek: change to regulator_get_optional cpufreq: imx-cpufreq-dt: Add i.MX8MN support cpufreq: Use imx-cpufreq-dt for i.MX8MN's speed grading ...
2019-09-03cpuidle: play_idle: Increase the resolution to usecDaniel Lezcano1-1/+1
The play_idle resolution is 1ms. The intel_powerclamp bases the idle duration on jiffies. The idle injection API is also using msec based duration but has no user yet. Unfortunately, msec based time does not fit well when we want to inject idle cycle precisely with shallow idle state. In order to set the scene for the incoming idle injection user, move the precision up to usec when calling play_idle. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-28Merge branches 'thermal-soc-misc' and 'thermal-soc-qoriq' into thermal-socZhang Rui1-15/+30
2019-08-28drivers: thermal: qcom: tsens: Fix memory leak from qfprom readSrinivas Kandagatla4-2/+14
memory returned as part of nvmem_read via qfprom_read should be freed by the consumer once done. Existing code is not doing it so fix it. Below memory leak detected by kmemleak [<ffffff80088b7658>] kmemleak_alloc+0x50/0x84 [<ffffff80081df120>] __kmalloc+0xe8/0x168 [<ffffff80086db350>] nvmem_cell_read+0x30/0x80 [<ffffff8008632790>] qfprom_read+0x4c/0x7c [<ffffff80086335a4>] calibrate_v1+0x34/0x204 [<ffffff8008632518>] tsens_probe+0x164/0x258 [<ffffff80084e0a1c>] platform_drv_probe+0x80/0xa0 [<ffffff80084de4f4>] really_probe+0x208/0x248 [<ffffff80084de2c4>] driver_probe_device+0x98/0xc0 [<ffffff80084dec54>] __device_attach_driver+0x9c/0xac [<ffffff80084dca74>] bus_for_each_drv+0x60/0x8c [<ffffff80084de634>] __device_attach+0x8c/0x100 [<ffffff80084de6c8>] device_initial_probe+0x20/0x28 [<ffffff80084dcbb8>] bus_probe_device+0x34/0x7c [<ffffff80084deb08>] deferred_probe_work_func+0x6c/0x98 [<ffffff80080c3da8>] process_one_work+0x160/0x2f8 Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-28thermal: tegra: Fix a typoChristophe JAILLET1-1/+1
s/sochterm/soctherm/ Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-28thermal: rcar_gen3_thermal: Replace devm_add_action() followed by failure ↵Fuqian Huang1-2/+1
action with devm_add_action_or_reset() devm_add_action_or_reset() is introduced as a helper function which internally calls devm_add_action(). If devm_add_action() fails then it will execute the action mentioned and return the error code. This reduce source code size (avoid writing the action twice) and reduce the likelyhood of bugs. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-28thermal: armada: Fix -Wshift-negative-valueNathan Huckleberry1-3/+2
Clang produces the following warning drivers/thermal/armada_thermal.c:270:33: warning: shifting a negative signed value is undefined [-Wshift-negative-value] 1 warning reg &= ~CONTROL1_TSEN_AVG_MASK << CONTROL1_TSEN_AVG_SHIFT; generated . ~~~~~~~~~~~~~~~~~~~~~~~ ^ CONTROL1_TSEN_AVG_SHIFT is defined to be zero. Since shifting by zero does nothing this variable can be removed. Cc: clang-built-linux@googlegroups.com Link: https://github.com/ClangBuiltLinux/linux/issues/532 Signed-off-by: Nathan Huckleberry <nhuck@google.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-28thermal: qoriq: Use __maybe_unused instead of #if CONFIG_PM_SLEEPAnson Huang1-4/+2
Use __maybe_unused for power management related functions instead of #if CONFIG_PM_SLEEP to simply the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-28thermal: qoriq: Use devm_platform_ioremap_resource() instead of of_iomap()Anson Huang1-12/+6
Use devm_platform_ioremap_resource() instead of of_iomap() to save the iounmap() call in error handle path; Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-28thermal: qoriq: Fix error path of calling qoriq_tmu_register_tmu_zone failAnson Huang1-1/+1
When registering tmu zone failed, the error path should be err_tmu instead of err_iomap, as iounmap() needs to be called. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-28thermal: qoriq: Add clock operationsAnson Huang1-0/+23
Some platforms like i.MX8MQ has clock control for this module, need to add clock operations to make sure the driver is working properly. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Guido Günther <agx@sigxcpu.org> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-19drivers: thermal: processor_thermal_device: Export sysfs interface for TCC ↵Srinivas Pandruvada1-4/+87
offset This change exports an interface to read tcc offset and allow writing if the platform is not locked. Refer to Intel SDM for details on the MSR: MSR_TEMPERATURE_TARGET. Here TCC Activation Offset (R/W) bits allow temperature offset in degrees in relation to TjMAX. This change will be useful for improving performance from user space for some platforms, if the current offset is not optimal. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Tested-by: Benjamin Berg <bberg@redhat.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-10thermal: cpu_cooling: Switch to QoS requests for freq limitsViresh Kumar1-84/+26
The cpufreq core now takes the min/max frequency constraints via QoS requests and the CPUFREQ_ADJUST notifier shall get removed later on. Switch over to using the QoS request for maximum frequency constraint for cpu_cooling driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-23int340X/processor_thermal_device: Fix proc_thermal_rapl_remove()Rafael J. Wysocki1-0/+4
Passing 0 to cpuhp_remove_state() triggers the BUG_ON() in __cpuhp_remove_state_cpuslocked() and the argument passed to powercap_unregister_control_type() is expected to be a valid pointer, so avoid calling these functions with incorrect arguments from proc_thermal_rapl_remove(). Fixes: 555c45fe0d04 ("int340X/processor_thermal_device: add support for MMIO RAPL") Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Zhang Rui <rui.zhang@intel.com>
2019-07-18Merge tag 'pm-5.3-rc1-2' of ↵Linus Torvalds2-6/+173
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "These modify the Intel RAPL driver to allow it to use an MMIO interface to the hardware, make the int340X thermal driver provide such an interface for it, add Intel Ice Lake CPU IDs to the RAPL driver (these changes depend on the previously merged x86 arch changes), update cpufreq to use the PM QoS framework for managing the min and max frequency limits, and add update the imx-cpufreq-dt cpufreq driver to support i.MX8MN. Specifics: - Add MMIO interface support to the Intel RAPL power capping driver and update the int340X thermal driver to provide a RAPL MMIO interface (Zhang Rui, Stephen Rothwell). - Add Intel Ice Lake CPU IDs to the RAPL driver (Zhang Rui, Rajneesh Bhardwaj). - Make cpufreq use the PM QoS framework (instead of notifiers) for managing the min and max frequency constraints (Viresh Kumar). - Add i.MX8MN support to the imx-cpufreq-dt cpufreq driver (Anson Huang)" * tag 'pm-5.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (27 commits) cpufreq: Make cpufreq_generic_init() return void intel_rapl: need linux/cpuhotplug.h for enum cpuhp_state powercap/rapl: Add Ice Lake NNPI support to RAPL driver powercap/intel_rapl: add support for ICX-D powercap/intel_rapl: add support for ICX powercap/intel_rapl: add support for IceLake desktop intel_rapl: Fix module autoloading issue int340X/processor_thermal_device: add support for MMIO RAPL intel_rapl: support two power limits for every RAPL domain intel_rapl: support 64 bit register intel_rapl: abstract RAPL common code intel_rapl: cleanup hardcoded MSR access intel_rapl: cleanup some functions intel_rapl: abstract register access operations intel_rapl: abstract register address intel_rapl: introduce struct rapl_if_private intel_rapl: introduce intel_rapl.h intel_rapl: remove hardcoded register index intel_rapl: use reg instead of msr cpufreq: imx-cpufreq-dt: Add i.MX8MN support ...
2019-07-17Merge branch 'next' of ↵Linus Torvalds8-115/+67
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: - Convert thermal documents to ReST (Mauro Carvalho Chehab) - Fix a cyclic depedency in between thermal core and governors (Daniel Lezcano) - Fix processor_thermal_device driver to re-evaluate power limits after resume (Srinivas Pandruvada, Zhang Rui) * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: drivers: thermal: processor_thermal_device: Fix build warning docs: thermal: convert to ReST thermal/drivers/core: Use governor table to initialize thermal/drivers/core: Add init section table for self-encapsulation drivers: thermal: processor_thermal: Read PPCC on resume
2019-07-12Merge tag 'driver-core-5.3-rc1' of ↵Linus Torvalds4-44/+9
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core and debugfs updates from Greg KH: "Here is the "big" driver core and debugfs changes for 5.3-rc1 It's a lot of different patches, all across the tree due to some api changes and lots of debugfs cleanups. Other than the debugfs cleanups, in this set of changes we have: - bus iteration function cleanups - scripts/get_abi.pl tool to display and parse Documentation/ABI entries in a simple way - cleanups to Documenatation/ABI/ entries to make them parse easier due to typos and other minor things - default_attrs use for some ktype users - driver model documentation file conversions to .rst - compressed firmware file loading - deferred probe fixes All of these have been in linux-next for a while, with a bunch of merge issues that Stephen has been patient with me for" * tag 'driver-core-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (102 commits) debugfs: make error message a bit more verbose orangefs: fix build warning from debugfs cleanup patch ubifs: fix build warning after debugfs cleanup patch driver: core: Allow subsystems to continue deferring probe drivers: base: cacheinfo: Ensure cpu hotplug work is done before Intel RDT arch_topology: Remove error messages on out-of-memory conditions lib: notifier-error-inject: no need to check return value of debugfs_create functions swiotlb: no need to check return value of debugfs_create functions ceph: no need to check return value of debugfs_create functions sunrpc: no need to check return value of debugfs_create functions ubifs: no need to check return value of debugfs_create functions orangefs: no need to check return value of debugfs_create functions nfsd: no need to check return value of debugfs_create functions lib: 842: no need to check return value of debugfs_create functions debugfs: provide pr_fmt() macro debugfs: log errors when something goes wrong drivers: s390/cio: Fix compilation warning about const qualifiers drivers: Add generic helper to match by of_node driver_find_device: Unify the match function with class_find_device() bus_find_device: Unify the match callback with class_find_device ...
2019-07-11int340X/processor_thermal_device: add support for MMIO RAPLZhang Rui2-6/+173
Introduce MMIO RAPL support as Intel processor_thermal device exposes the capability to do RAPL control via MMIO registers. Reviewed-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com> Tested-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-07-09drivers: thermal: processor_thermal_device: Fix build warningZhang Rui1-0/+4
As a system sleep callback, proc_thermal_resume() should be defined only if CONFIG_PM_SLEEP is defined. This fixes a build warning when CONFIG_PM_SLEEP is not set, drivers/thermal/intel/int340x_thermal/processor_thermal_device.c:446:12: error: 'proc_thermal_resume' defined but not used [-Werror=unused-function] static int proc_thermal_resume(struct device *dev) Fixes: aaba9791fbb4 ("drivers: thermal: processor_thermal: Read PPCC on resume") Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-07-09Merge branch 'x86-topology-for-linus' of ↵Linus Torvalds1-70/+72
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 topology updates from Ingo Molnar: "Implement multi-die topology support on Intel CPUs and expose the die topology to user-space tooling, by Len Brown, Kan Liang and Zhang Rui. These changes should have no effect on the kernel's existing understanding of topologies, i.e. there should be no behavioral impact on cache, NUMA, scheduler, perf and other topologies and overall system performance" * 'x86-topology-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/rapl: Cosmetic rename internal variables in response to multi-die/pkg support perf/x86/intel/uncore: Cosmetic renames in response to multi-die/pkg support hwmon/coretemp: Cosmetic: Rename internal variables to zones from packages thermal/x86_pkg_temp_thermal: Cosmetic: Rename internal variables to zones from packages perf/x86/intel/cstate: Support multi-die/package perf/x86/intel/rapl: Support multi-die/package perf/x86/intel/uncore: Support multi-die/package topology: Create core_cpus and die_cpus sysfs attributes topology: Create package_cpus sysfs attribute hwmon/coretemp: Support multi-die/package powercap/intel_rapl: Update RAPL domain name and debug messages thermal/x86_pkg_temp_thermal: Support multi-die/package powercap/intel_rapl: Support multi-die/package powercap/intel_rapl: Simplify rapl_find_package() x86/topology: Define topology_logical_die_id() x86/topology: Define topology_die_id() cpu/topology: Export die_id x86/topology: Create topology_max_die_per_package() x86/topology: Add CPUID.1F multi-die/package support
2019-06-28Merge branches 'thermal-core' and 'thermal-intel' into nextZhang Rui1-0/+14
2019-06-27thermal/drivers/core: Use governor table to initializeDaniel Lezcano7-115/+34
Now that the governor table is in place and the macro allows to browse the table, declare the governor so the entry is added in the governor table in the init section. The [un]register_thermal_governors function does no longer need to use the exported [un]register thermal governor's specific function which in turn call the [un]register_thermal_governor. The governors are fully self-encapsulated. The cyclic dependency is no longer needed, remove it. Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-06-27thermal/drivers/core: Add init section table for self-encapsulationDaniel Lezcano1-0/+15
Currently the governors are declared in their respective files but they export their [un]register functions which in turn call the [un]register governors core's functions. That implies a cyclic dependency which is not desirable. There is a way to self-encapsulate the governors by letting them to declare themselves in a __init section table. Define the table in the asm generic linker description like the other tables and provide the specific macros to deal with. Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-06-25drivers: thermal: processor_thermal: Read PPCC on resumeSrinivas Pandruvada1-0/+14
Read PPCC power limits on system resume in case those limits changed while system was suspended. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-06-21thermal: bcm2835: no need to check return value of debugfs_create functionsGreg Kroah-Hartman1-2/+0
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Cc: linux-pm@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner6-28/+6
Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-18thermal: tegra: no need to check return value of debugfs_create functionsGreg Kroah-Hartman1-12/+2
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Wei Ni <wni@nvidia.com> Cc: Yangtao Li <tiny.windzz@gmail.com> Cc: linux-pm@vger.kernel.org Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-18thermal: intel_powerclamp: no need to check return value of debugfs_create ↵Greg Kroah-Hartman1-10/+2
functions When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Finn Thain <fthain@telegraphics.com.au> Cc: linux-pm@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-18thermal: intel: no need to check return value of debugfs_create functionsGreg Kroah-Hartman1-20/+5
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: linux-pm@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422Thomas Gleixner1-4/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 101 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190113.822954939@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336Thomas Gleixner7-105/+7
Based on 1 normalized pattern(s): 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 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 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 246 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.674189849@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335Thomas Gleixner1-16/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope 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 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 111 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.567572064@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 309Thomas Gleixner1-13/+1
Based on 2 normalized pattern(s): 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 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 this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 11 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000434.249870634@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288Thomas Gleixner9-88/+9
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 263 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286Thomas Gleixner1-11/+1
Based on 1 normalized pattern(s): 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 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 97 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.025053186@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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