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2017-03-02sched/headers: Prepare for new header dependencies before moving code to ↵Ingo Molnar
<uapi/linux/sched/types.h> We are going to move scheduler ABI details to <uapi/linux/sched/types.h>, which will be used from a number of .c files. Create empty placeholder header that maps to <linux/types.h>. Include the new header in the files that are going to need it. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-03-01Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: - add thermal driver for R-Car Gen3 thermal sensors. - add thermal driver for ZTE' zx2967 family thermal sensors. - convert thermal ID allocation from IDR to IDA. - fix a possible NULL dereference in imx thermal driver. - fix a ti-soc-thermal driver dependency issue so that critical thermal control is still available when CPU_THERMAL is not defined. - update binding information for QorIQ thermal driver. - a couple of cleanups in thermal core, intel_powerclamp, exynos, dra752-thermal, mtk-thermal driver. * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: powerpc/mpc85xx: Update TMU device tree node for T1023/T1024 powerpc/mpc85xx: Update TMU device tree node for T1040/T1042 dt-bindings: Update QorIQ TMU thermal bindings thermal: mtk_thermal: Staticise a number of data variables thermal: arm: dra752: Remove all TSHUT related definitions thermal: arm: dra752: Remove TSHUT configuration thermal: ti-soc-thermal: Remove CPU_THERMAL Dependency from TI_THERMAL thermal: imx: Fix possible NULL dereference. thermal: exynos: Remove parsing unused samsung,tmu_cal_mode property thermal: zx2967: add thermal driver for ZTE's zx2967 family thermal: use cpumask_var_t for on-stack cpu masks dt: bindings: add documentation for zx2967 family thermal sensor thermal/intel_powerclamp: Remove set-but-not-used variables thermal: rcar_gen3_thermal: Add R-Car Gen3 thermal driver thermal: rcar_gen3_thermal: Document the R-Car Gen3 thermal: convert devfreq_cooling to use an IDA thermal: convert cpu_cooling to use an IDA thermal: convert clock cooling to use an IDA thermal core: convert ID allocation to IDA
2017-02-22Merge branches 'thermal-core', 'thermal-soc', 'thermal-intel' and ↵Zhang Rui
'ida-conversion' into next
2017-02-21Merge branch 'linus' of ↵Zhang Rui
git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal into thermal-soc
2017-02-20Merge branch 'pm-opp'Rafael J. Wysocki
* pm-opp: (24 commits) PM / OPP: Expose _of_get_opp_desc_node as dev_pm_opp API PM / OPP: Make _find_opp_table_unlocked() static PM / OPP: Update Documentation to remove RCU specific bits PM / OPP: Simplify dev_pm_opp_get_max_volt_latency() PM / OPP: Simplify _opp_set_availability() PM / OPP: Move away from RCU locking PM / OPP: Take kref from _find_opp_table() PM / OPP: Update OPP users to put reference PM / OPP: Add 'struct kref' to struct dev_pm_opp PM / OPP: Use dev_pm_opp_get_opp_table() instead of _add_opp_table() PM / OPP: Take reference of the OPP table while adding/removing OPPs PM / OPP: Return opp_table from dev_pm_opp_set_*() routines PM / OPP: Add 'struct kref' to OPP table PM / OPP: Add per OPP table mutex PM / OPP: Split out part of _add_opp_table() and _remove_opp_table() PM / OPP: Don't expose srcu_head to register notifiers PM / OPP: Rename dev_pm_opp_get_suspend_opp() and return OPP rate PM / OPP: Don't allocate OPP table from _opp_allocate() PM / OPP: Rename and split _dev_pm_opp_remove_table() PM / OPP: Add light weight _opp_free() routine ...
2017-02-18thermal: mtk_thermal: Staticise a number of data variablesVivek Gautam
Sparse throws following warnings: drivers/thermal/mtk_thermal.c:186:11: warning: symbol 'mt8173_bank_data' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:193:11: warning: symbol 'mt8173_msr' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:197:11: warning: symbol 'mt8173_adcpnp' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:201:11: warning: symbol 'mt8173_mux_values' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:204:11: warning: symbol 'mt2701_bank_data' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:208:11: warning: symbol 'mt2701_msr' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:212:11: warning: symbol 'mt2701_adcpnp' was not declared. Should it be static? drivers/thermal/mtk_thermal.c:216:11: warning: symbol 'mt2701_mux_values' was not declared. Should it be static? Make these variables as static to fix these warnings. Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-02-18thermal: arm: dra752: Remove all TSHUT related definitionsKeerthy
No configuration needs to be done for TSHUT from software. Hence remove all the unnecessary definitions. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-02-18thermal: arm: dra752: Remove TSHUT configurationKeerthy
Technical Reference Manual [1] mandates that software should not be configuring the thermal shutdown thresholds. Hence removing TSHUT_CONFIG. [1] http://www.ti.com/lit/ug/sprui30b/sprui30b.pdf Signed-off-by: Keerthy <j-keerthy@ti.com> Reported-by: Ravikumar Kattekola <rk@ti.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-02-18thermal: ti-soc-thermal: Remove CPU_THERMAL Dependency from TI_THERMALKeerthy
Currently when CPU_THERMAL is not defined the thermal sensors are not even exposed consequently no cooling is possible. CPU_THERMAL eventually depends on CPUFREQ. CPPUFREQ is not the only cooling for CPU. The thermal shutdown for critical temperatures is another cooling solution which will currently not get enabled if CPU_THERMAL is not defined. Remove this dependency so as to have the last level of thermal protection working even without CPUFREQ defined. Signed-off-by: Keerthy <j-keerthy@ti.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-02-18thermal: imx: Fix possible NULL dereference.Shailendra Verma
of_device_get_match_data could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma <shailendra.v@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-02-18thermal: exynos: Remove parsing unused samsung,tmu_cal_mode propertyKrzysztof Kozlowski
The property samsung,tmu_cal_mode is not used and not used. We can safely remove it. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-02-18thermal: zx2967: add thermal driver for ZTE's zx2967 familyBaoyou Xie
This patch adds thermal driver for ZTE's zx2967 family. Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org> Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-02-10thermal: use cpumask_var_t for on-stack cpu masksArnd Bergmann
Putting a bare cpumask structure on the stack produces a warning on large SMP configurations: drivers/thermal/cpu_cooling.c: In function 'cpufreq_state2power': drivers/thermal/cpu_cooling.c:644:1: warning: the frame size of 1056 bytes is larger than 1024 bytes [-Wframe-larger-than=] drivers/thermal/cpu_cooling.c: In function '__cpufreq_cooling_register': drivers/thermal/cpu_cooling.c:898:1: warning: the frame size of 1104 bytes is larger than 1024 bytes [-Wframe-larger-than=] The recommended workaround is to use cpumask_var_t, which behaves just like a normal cpu mask in most cases, but turns into a dynamic allocation when CONFIG_CPUMASK_OFFSTACK is set. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2017-02-07thermal/intel_powerclamp: Remove set-but-not-used variablesAugusto Mecking Caringi
In poll_pkg_cstate() function, the variables jiffies_last and jiffies_now are set but never used. This has been detected by building the driver with W=1: drivers/thermal/intel_powerclamp.c: In function ‘poll_pkg_cstate’: drivers/thermal/intel_powerclamp.c:464:23: warning: variable ‘jiffies_last’ set but not used [-Wunused-but-set-variable] static unsigned long jiffies_last; ^ Signed-off-by: Augusto Mecking Caringi <augustocaringi@gmail.com> Acked-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2017-01-30PM / OPP: Update OPP users to put referenceViresh Kumar
This patch updates dev_pm_opp_find_freq_*() routines to get a reference to the OPPs returned by them. Also updates the users of dev_pm_opp_find_freq_*() routines to call dev_pm_opp_put() after they are done using the OPPs. As it is guaranteed the that OPPs wouldn't get freed while being used, the RCU read side locking present with the users isn't required anymore. Drop it as well. This patch also updates all users of devfreq_recommended_opp() which was returning an OPP received from the OPP core. Note that some of the OPP core routines have gained rcu_read_{lock|unlock}() calls, as those still use RCU specific APIs within them. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> [Devfreq] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-01-25Revert "thermal: thermal_hwmon: Convert to hwmon_device_register_with_info()"Fabio Estevam
This reverts commit 7611fb68062f ("thermal: thermal_hwmon: Convert to hwmon_device_register_with_info()"). Pavel Machek reported breakage in the Nokia N900 due to this commit. We can revisit a proper fix for the warning later. Reported-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2017-01-20Merge branches 'thermal-core' and 'thermal-soc' into for-rcZhang Rui
2017-01-19thermal: rcar_gen3_thermal: Add R-Car Gen3 thermal driverWolfram Sang
Add support for R-Car Gen3 thermal sensors. Polling only for now, interrupts will be added incrementally. Same goes for reading fuses. This is documented already, but no hardware available for now. Signed-off-by: Hien Dang <hien.dang.eb@renesas.com> Signed-off-by: Thao Nguyen <thao.nguyen.yb@rvc.renesas.com> Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@renesas.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> [Niklas: document and rework temperature calculation] Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-01-16thermal: rockchip: fixes the conversion tableCaesar Wang
As Ayaka reported the thermal was abormal on rk3288 at booting time. thermal thermal_zone1: critical temperature reached(125 C),shutting down thermal thermal_zone2: critical temperature reached(125 C),shutting down thermal thermal_zone1: critical temperature reached(125 C),shutting down thermal thermal_zone2: critical temperature reached(125 C),shutting down ... The root caused by reading the invald analogic value, the value is zero will convert the 125 degree to trigger the critical temperature. Fixes it with insteading of the incorrect reading now. Fixes commit cadf29dc2a8bcaae83 ("thermal: rockchip: optimize the conversion table") Reported-by: ayaka <ayaka@soulik.info> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-01-06thermal: core: move tz->device.groups cleanup to thermal_releaseJacob von Chorus
The device_unregister call in thermal_zone_device_unregister causes the thermal_zone_device structure to be freed before the call to free the dynamically allocated attribute groups. This leads to a kernel panic. Furthermore, the 4 calls to free the trip point attribute structures occur before the call to unregister the device, leading to a kernel panic when sysfs attempts to access the attributes to remove them. Here is an example of a kernel panic when the cpu thermal zones are removed upon cpu offline: BUG: unable to handle kernel NULL pointer dereference at (null) IP: strlen+0x0/0x20 <snip> Call Trace: ? kernfs_name_hash+0x17/0x80 kernfs_find_ns+0x3f/0xd0 kernfs_remove_by_name_ns+0x36/0xa0 remove_files.isra.1+0x36/0x70 sysfs_remove_group+0x44/0x90 sysfs_remove_groups+0x2e/0x50 device_remove_attrs+0x5e/0x90 device_del+0x1ea/0x350 device_unregister+0x1a/0x60 thermal_zone_device_unregister+0x1f2/0x210 pkg_thermal_cpu_offline+0x14f/0x1a0 [x86_pkg_temp_thermal] ? kzalloc.constprop.2+0x10/0x10 [x86_pkg_temp_thermal] cpuhp_invoke_callback+0x8d/0x3f0 cpuhp_down_callbacks+0x42/0x80 cpuhp_thread_fun+0x8b/0xf0 smpboot_thread_fn+0x110/0x160 kthread+0x101/0x140 ? sort_range+0x30/0x30 ? kthread_park+0x90/0x90 ret_from_fork+0x25/0x30 This patch moves the kfree calls to clean up the dynamic attributes to the thermal_class's thermal_zone_device release function. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Tested-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Signed-off-by: Jacob von Chorus <jacobvonchorus@cwphoto.ca> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2017-01-04thermal: convert devfreq_cooling to use an IDAMatthew Wilcox
thermal devfreq cooling does not use the ability to look up pointers by ID, so convert it from using an IDR to the more space-efficient IDA. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2017-01-04thermal: convert cpu_cooling to use an IDAMatthew Wilcox
thermal cpu cooling does not use the ability to look up pointers by ID, so convert it from using an IDR to the more space-efficient IDA. The cooling_cpufreq_lock was being used to protect cpufreq_dev_count as well as the IDR. Rather than keep the mutex to protect a single integer, I expanded the scope of cooling_list_lock to also cover cpufreq_dev_count. We could also convert cpufreq_dev_count into an atomic. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2017-01-04thermal: convert clock cooling to use an IDAMatthew Wilcox
thermal clock cooling does not use the ability to look up pointers by ID, so convert it from using an IDR to the more space-efficient IDA. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2017-01-04thermal core: convert ID allocation to IDAMatthew Wilcox
The thermal core does not use the ability to look up pointers by ID, so convert it from using an IDR to the more space-efficient IDA. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2017-01-04thermal: thermal_hwmon: Convert to hwmon_device_register_with_info()Fabio Estevam
Booting Linux on a mx6q based board leads to the following warning: (NULL device *): hwmon_device_register() is deprecated. Please convert the driver to use hwmon_device_register_with_info(). ,so do as suggested. Also, this results in the core taking care of creating the 'name' attribute, so drop the code doing that from the thermal driver. Suggested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-12-13thermal: rockchip: handle set_trips without the trip pointsCaesar Wang
In some cases, some sensors didn't need the trip points, the set_trips will pass {-INT_MAX, INT_MAX} to trigger tsadc alarm in the end, ignore this case and disable the high temperature interrupt. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Reviewed-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-12-13thermal: rockchip: optimize the conversion tableCaesar Wang
In order to support the valid temperature can conver to analog value. The rockchip thermal driver has not supported the all valid temperature to convert the analog value. (e.g.: 61C, 62C, 63C....) For example: In some cases, we need adjust the trip point. $cd /sys/class/thermal/thermal_zone* $echo 68000 > trip_point_0_temp That will return the max analogic value indicates the invalid before posting this patch. So, this patch will optimize the conversion table to support the other cases. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-12-13thermal: rockchip: fixes invalid temperature caseCaesar Wang
The temp_to_code function will return 0 when we set the temperature to a invalid value (e.g. 61C, 62C, 63C....), that's unpractical. This patch will prevent this case happening. That will return the max analog value to indicate the temperature is invalid or over table temperature range. Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-12-13thermal: rockchip: don't pass table structs by valueBrian Norris
This driver passes struct chip_tsadc_table by value throughout; this is inefficient, and AFAICT, there is no reason for it. Let's pass pointers instead. Signed-off-by: Brian Norris <briannorris@chromium.org> Reviewed-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-12-13thermal: rockchip: improve conversion error messagesBrian Norris
These error messages don't give much information about what went wrong. It would be nice, for one, to see what invalid temperature was being requested when conversion fails. It's also good to return an error when we can't handle a conversion properly. While we're at it, fix the grammar too. Signed-off-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-12-13Merge tag 'pm-4.10-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "Again, cpufreq gets more changes than the other parts this time (one new driver, one old driver less, a bunch of enhancements of the existing code, new CPU IDs, fixes, cleanups) There also are some changes in cpuidle (idle injection rework, a couple of new CPU IDs, online/offline rework in intel_idle, fixes and cleanups), in the generic power domains framework (mostly related to supporting power domains containing CPUs), and in the Operating Performance Points (OPP) library (mostly related to supporting devices with multiple voltage regulators) In addition to that, the system sleep state selection interface is modified to make it easier for distributions with unchanged user space to support suspend-to-idle as the default system suspend method, some issues are fixed in the PM core, the latency tolerance PM QoS framework is improved a bit, the Intel RAPL power capping driver is cleaned up and there are some fixes and cleanups in the devfreq subsystem Specifics: - New cpufreq driver for Broadcom STB SoCs and a Device Tree binding for it (Markus Mayer) - Support for ARM Integrator/AP and Integrator/CP in the generic DT cpufreq driver and elimination of the old Integrator cpufreq driver (Linus Walleij) - Support for the zx296718, r8a7743 and r8a7745, Socionext UniPhier, and PXA SoCs in the the generic DT cpufreq driver (Baoyou Xie, Geert Uytterhoeven, Masahiro Yamada, Robert Jarzmik) - cpufreq core fix to eliminate races that may lead to using inactive policy objects and related cleanups (Rafael Wysocki) - cpufreq schedutil governor update to make it use SCHED_FIFO kernel threads (instead of regular workqueues) for doing delayed work (to reduce the response latency in some cases) and related cleanups (Viresh Kumar) - New cpufreq sysfs attribute for resetting statistics (Markus Mayer) - cpufreq governors fixes and cleanups (Chen Yu, Stratos Karafotis, Viresh Kumar) - Support for using generic cpufreq governors in the intel_pstate driver (Rafael Wysocki) - Support for per-logical-CPU P-state limits and the EPP/EPB (Energy Performance Preference/Energy Performance Bias) knobs in the intel_pstate driver (Srinivas Pandruvada) - New CPU ID for Knights Mill in intel_pstate (Piotr Luc) - intel_pstate driver modification to use the P-state selection algorithm based on CPU load on platforms with the system profile in the ACPI tables set to "mobile" (Srinivas Pandruvada) - intel_pstate driver cleanups (Arnd Bergmann, Rafael Wysocki, Srinivas Pandruvada) - cpufreq powernv driver updates including fast switching support (for the schedutil governor), fixes and cleanus (Akshay Adiga, Andrew Donnellan, Denis Kirjanov) - acpi-cpufreq driver rework to switch it over to the new CPU offline/online state machine (Sebastian Andrzej Siewior) - Assorted cleanups in cpufreq drivers (Wei Yongjun, Prashanth Prakash) - Idle injection rework (to make it use the regular idle path instead of a home-grown custom one) and related powerclamp thermal driver updates (Peter Zijlstra, Jacob Pan, Petr Mladek, Sebastian Andrzej Siewior) - New CPU IDs for Atom Z34xx and Knights Mill in intel_idle (Andy Shevchenko, Piotr Luc) - intel_idle driver cleanups and switch over to using the new CPU offline/online state machine (Anna-Maria Gleixner, Sebastian Andrzej Siewior) - cpuidle DT driver update to support suspend-to-idle properly (Sudeep Holla) - cpuidle core cleanups and misc updates (Daniel Lezcano, Pan Bian, Rafael Wysocki) - Preliminary support for power domains including CPUs in the generic power domains (genpd) framework and related DT bindings (Lina Iyer) - Assorted fixes and cleanups in the generic power domains (genpd) framework (Colin Ian King, Dan Carpenter, Geert Uytterhoeven) - Preliminary support for devices with multiple voltage regulators and related fixes and cleanups in the Operating Performance Points (OPP) library (Viresh Kumar, Masahiro Yamada, Stephen Boyd) - System sleep state selection interface rework to make it easier to support suspend-to-idle as the default system suspend method (Rafael Wysocki) - PM core fixes and cleanups, mostly related to the interactions between the system suspend and runtime PM frameworks (Ulf Hansson, Sahitya Tummala, Tony Lindgren) - Latency tolerance PM QoS framework imorovements (Andrew Lutomirski) - New Knights Mill CPU ID for the Intel RAPL power capping driver (Piotr Luc) - Intel RAPL power capping driver fixes, cleanups and switch over to using the new CPU offline/online state machine (Jacob Pan, Thomas Gleixner, Sebastian Andrzej Siewior) - Fixes and cleanups in the exynos-ppmu, exynos-nocp, rk3399_dmc, rockchip-dfi devfreq drivers and the devfreq core (Axel Lin, Chanwoo Choi, Javier Martinez Canillas, MyungJoo Ham, Viresh Kumar) - Fix for false-positive KASAN warnings during resume from ACPI S3 (suspend-to-RAM) on x86 (Josh Poimboeuf) - Memory map verification during resume from hibernation on x86 to ensure a consistent address space layout (Chen Yu) - Wakeup sources debugging enhancement (Xing Wei) - rockchip-io AVS driver cleanup (Shawn Lin)" * tag 'pm-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (127 commits) devfreq: rk3399_dmc: Don't use OPP structures outside of RCU locks devfreq: rk3399_dmc: Remove dangling rcu_read_unlock() devfreq: exynos: Don't use OPP structures outside of RCU locks Documentation: intel_pstate: Document HWP energy/performance hints cpufreq: intel_pstate: Support for energy performance hints with HWP cpufreq: intel_pstate: Add locking around HWP requests PM / sleep: Print active wakeup sources when blocking on wakeup_count reads PM / core: Fix bug in the error handling of async suspend PM / wakeirq: Fix dedicated wakeirq for drivers not using autosuspend PM / Domains: Fix compatible for domain idle state PM / OPP: Don't WARN on multiple calls to dev_pm_opp_set_regulators() PM / OPP: Allow platform specific custom set_opp() callbacks PM / OPP: Separate out _generic_set_opp() PM / OPP: Add infrastructure to manage multiple regulators PM / OPP: Pass struct dev_pm_opp_supply to _set_opp_voltage() PM / OPP: Manage supply's voltage/current in a separate structure PM / OPP: Don't use OPP structure outside of rcu protected section PM / OPP: Reword binding supporting multiple regulators per device PM / OPP: Fix incorrect cpu-supply property in binding cpuidle: Add a kerneldoc comment to cpuidle_use_deepest_state() ..
2016-12-13Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management updates from Zhang Rui: - Thermal core code reorganization and cleanup. Two new files are created for thermal sysfs I/F code and thermal helper functions (Eduardo Valentin). - Sanitize hotplug and locking for x86_pkg_temp driver (Thomas Gleixner) - Update MAINTAINER file for pwm-fan driver and Samsung thermal driver (Lukasz Majewski) - Fix module auto-load for max77620, tango and db8500 thermal driver (Javier Martinez Canillas) - Fix a bug that thermal hwmon sysfs I/F returns wrong critical trip point temperature value (Krzysztof Kozlowski) - Add Skylake PCH 100 series support for intel_pch_thermal driver (OGAWA Hirofumi) - Small fixes and cleanups for platform thermal drivers (Julia Lawall, Luis Henriques, Leo Yan, Stephen Boyd, Shawn Lin, Javi Merino and Lukasz Luba) * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (76 commits) MAINTAINERS: Samsung: Update maintainer for PWM FAN and SAMSUNG THERMAL thermal/x86 pkg temp: Convert to hotplug state machine thermal/x86_pkg_temp: Sanitize package management thermal/x86_pkg_temp: Move work into package struct thermal/x86_pkg_temp: Move work scheduled flag into package struct thermal/x86_pkg_temp: Sanitize locking thermal/x86_pkg_temp: Cleanup code some more thermal/x86_pkg_temp: Cleanup namespace thermal/x86_pkg_temp: Get rid of ref counting thermal/x86_pkg_temp: Sanitize callback (de)initialization thermal/x86_pkg_temp: Replace open coded cpu search thermal/x86_pkg_temp: Remove redundant package search thermal/x86_pkg_temp: Cleanup thermal interrupt handling thermal: hwmon: Properly report critical temperature in sysfs devfreq_cooling: pass a pointer to devfreq in the power model callbacks devfreq_cooling: make the structs devfreq_cooling_xxx visible for all dt-bindings: rockchip-thermal: fix the misleading description thermal: rockchip: improve the warning log thermal: db8500: Fix module autoload thermal: tango: Fix module autoload ...
2016-12-12Merge branch 'x86-idle-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 idle updates from Ingo Molnar: "There were two bigger changes in this development cycle: - remove idle notifiers: 32 files changed, 74 insertions(+), 803 deletions(-) These notifiers were of questionable value and the main usecase, the i7300 driver, was essentially unmaintained and can be removed, plus modern power management concepts don't need the callback - so use this golden opportunity and get rid of this opaque and fragile callback from a latency sensitive code path. (Len Brown, Thomas Gleixner) - improve the AMD Erratum 400 workaround that used high overhead MSR polling in the idle loop (Borisla Petkov, Thomas Gleixner)" * 'x86-idle-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Remove empty idle.h header x86/amd: Simplify AMD E400 aware idle routine x86/amd: Check for the C1E bug post ACPI subsystem init x86/bugs: Separate AMD E400 erratum and C1E bug x86/cpufeature: Provide helper to set bugs bits x86/idle: Remove enter_idle(), exit_idle() x86: Remove x86_test_and_clear_bit_percpu() x86/idle: Remove is_idle flag x86/idle: Remove idle_notifier i7300_idle: Remove this driver
2016-12-12Merge powerclamp driver updates (that depend on cpuidle material) for v4.10.Rafael J. Wysocki
2016-12-09x86: Remove empty idle.h headerThomas Gleixner
One include less is always a good thing(tm). Good riddance. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/r/20161209182912.2726-6-bp@alien8.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-11-30Merge branches 'thermal-core', 'thermal-intel', 'thermal-soc-fixes' and ↵Zhang Rui
'thermal-reorg' into next
2016-11-30thermal/x86 pkg temp: Convert to hotplug state machineSebastian Andrzej Siewior
Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Replace the wrmsr/rdmrs_on_cpu() calls in the hotplug callbacks as they are guaranteed to be invoked on the incoming/outgoing cpu. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal/x86_pkg_temp: Sanitize package managementThomas Gleixner
Packages are kept in a list, which must be searched over and over. We can be smarter than that and just store the package pointers in an array which is allocated at init time. Sizing of the array is determined from the topology information. That makes the package search a simple array lookup. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal/x86_pkg_temp: Move work into package structThomas Gleixner
Delayed work structs are held in a static percpu storage, which makes no sense at all because work is strictly per package and we never schedule more than one work per package. Aside of that the work cancelation in the hotplug is broken when the work is queued on the outgoing cpu and canceled. Nothing reschedules the work on another online cpu in the package, so the interrupts stay disabled and the work_scheduled flag stays active. Move the delayed work struct into the package struct, which is the only sensible place to have it. To simplify the cancelation logic schedule the work always on the cpu which is the target for the sysfs files. This is required so the cancelation logic in the cpu offline path cancels only when the outgoing cpu is the current target and reschedule the work when there is still a online CPU in the package. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal/x86_pkg_temp: Move work scheduled flag into package structThomas Gleixner
Storage for a boolean information whether work is scheduled for a package is kept in separate allocated storage, which is resized when the number of detected packages grows. With the proper locking in place this is a completely pointless exercise because we can simply stick it into the per package struct. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal/x86_pkg_temp: Sanitize lockingThomas Gleixner
The work cancellation code, the thermal zone unregistering, the work code and the interrupt notification function are racy against each other and against cpu hotplug and module exit. The random locking sprinkeled all over the place does not help anything and probably exists to make people feel good. The resulting issues (mainly use after free) are probably hard to trigger, but they clearly exist Protect the package list with a spinlock so it can be accessed from the interrupt notifier and also from the work function. The add/removal code in the hotplug callbacks take the lock for list manipulation. That makes sure that on removal neither the interrupt notifier nor the work function can access the about to be freed package structure anymore. The thermal zone unregistering is another trainwreck. It's not serialized against the work function. So unregistering the zone device can race with the work function and cause havoc. Protect the thermal zone with a mutex, which is held in the work function to make sure that the zone device is not being unregistered concurrently. To solve the module exit issues, we simply invoke the cpu offline callback and let it work its magic. For that it's required to keep track of the participating cpus in a package, because topology_core_mask is not affected by calling the offline callback for teardown of the driver, so it would never free the package as there is always a valid target in topology_core_mask. Use proper names for the locks so it's clear what they are for and add a pile of comments to explain the protection rules. It's amazing that fixing the locking and adding 30 lines of comments explaining it still removes more lines than it adds. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal/x86_pkg_temp: Cleanup code some moreThomas Gleixner
Coding style fixups and replacement of overly complex constructs and random error codes instead of returning the real ones. This mess makes the eyes bleeding. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal/x86_pkg_temp: Cleanup namespaceThomas Gleixner
Any randomly chosen struct name is more descriptive than phy_dev_entry. Rename the whole thing to struct pkg_device, which describes the content reasonably well and use the same variable name throughout the code so it gets readable. Rename the msr struct members as well. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal/x86_pkg_temp: Get rid of ref countingThomas Gleixner
There is no point in the whole package data refcounting dance because topology_core_cpumask tells us whether this is the last cpu in the package. If yes, then the package can go, if not it stays. It's already serialized via the hotplug code. While at it rename the first_cpu member of the package structure to cpu. The first has absolutely no meaning. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal/x86_pkg_temp: Sanitize callback (de)initializationThomas Gleixner
The threshold callbacks are installed before the initialization of the online cpus has succeeded and removed after the teardown has been done. That's both wrong as callbacks might be invoked into a half initialized or torn down state. Move them to the proper places: Last in init() and first in exit(). While at it shorten the insane long and horrible named function names. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal/x86_pkg_temp: Replace open coded cpu searchThomas Gleixner
find_next_sibling() iterates over the online cpus and searches for a cpu with the same package id as the current cpu. This is a pointless exercise as topology_core_cpumask() allows a simple cpumask search for an online cpu on the same package. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal/x86_pkg_temp: Remove redundant package searchThomas Gleixner
In pkg_temp_thermal_device_remove() the package device is searched at the beginning of the function. When the device refcount becomes zero another search for the same device is conducted. Remove the pointless loop and use the device pointer which was retrieved at the beginning of the function. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal/x86_pkg_temp: Cleanup thermal interrupt handlingThomas Gleixner
Wenn a package is removed nothing restores the thermal interrupt MSR so the content will be stale when a CPU of that package becomes online again. Aside of that the work function reenables interrupts before acknowledging the current one, which is the wrong order to begin with. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-30thermal: hwmon: Properly report critical temperature in sysfsKrzysztof Kozlowski
In the critical sysfs entry the thermal hwmon was returning wrong temperature to the user-space. It was reporting the temperature of the first trip point instead of the temperature of critical trip point. For example: /sys/class/hwmon/hwmon0/temp1_crit:50000 /sys/class/thermal/thermal_zone0/trip_point_0_temp:50000 /sys/class/thermal/thermal_zone0/trip_point_0_type:active /sys/class/thermal/thermal_zone0/trip_point_3_temp:120000 /sys/class/thermal/thermal_zone0/trip_point_3_type:critical Since commit e68b16abd91d ("thermal: add hwmon sysfs I/F") the driver have been registering a sysfs entry if get_crit_temp() callback was provided. However when accessed, it was calling get_trip_temp() instead of the get_crit_temp(). Fixes: e68b16abd91d ("thermal: add hwmon sysfs I/F") Cc: <stable@vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2016-11-29thermal/intel_powerclamp: stop sched tick in forced idleJacob Pan
With the introduction of play_idle(), idle injection kthread can go through the normal idle task processing to get correct accounting and turn off scheduler tick when possible. Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>