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linux-hardened/drivers/cpufreq
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Viresh Kumar 91a12e91dc cpufreq: Allow light-weight tear down and bring up of CPUs 
The cpufreq core doesn't remove the cpufreq policy anymore on CPU
offline operation, rather that happens when the CPU device gets
unregistered from the kernel. This allows faster recovery when the CPU
comes back online. This is also very useful during system wide
suspend/resume where we offline all non-boot CPUs during suspend and
then bring them back on resume.

This commit takes the same idea a step ahead to allow drivers to do
light weight tear-down and bring-up during CPU offline and online
operations.

A new set of callbacks is introduced, online/offline(). online() gets
called when the first CPU of an inactive policy is brought up and
offline() gets called when all the CPUs of a policy are offlined.

The existing init/exit() callback get called on policy
creation/destruction. They also get called instead of online/offline()
callbacks if the online/offline() callbacks aren't provided.

This also moves around some code to get executed only for the new-policy
case going forward.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-02-12 23:47:42 +01:00
..
acpi-cpufreq.c cpufreq: Add Hygon Dhyana support 2018-09-27 18:29:00 +02:00
amd_freq_sensitivity.c cpufreq: Add Hygon Dhyana support 2018-09-27 18:29:00 +02:00
arm_big_little.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
arm_big_little.h cpufreq: arm_big_little: make function arguments and structure pointer const 2017-11-08 23:22:19 +01:00
armada-37xx-cpufreq.c cpufreq: armada-37xx: Add AVS support 2018-07-18 10:10:25 +02:00
bmips-cpufreq.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
brcmstb-avs-cpufreq.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
cppc_cpufreq.c cpufreq / CPPC: Mark acpi_ids as used 2018-10-03 13:36:27 +02:00
cpufreq-dt-platdev.c cpufreq: dt-platdev: allow RK3399 to have separate tunables per cluster 2018-10-08 08:55:44 +02:00
cpufreq-dt.c cpufreq: cpufreq-dt: Use auto-registration of thermal cooling device 2019-01-30 23:06:08 +01:00
cpufreq-dt.h cpufreq: dt: Allow platform specific suspend/resume callbacks 2018-05-10 11:43:59 +02:00
cpufreq-nforce2.c cpufreq: nforce2: Remove meaningless return 2018-12-11 12:11:46 +01:00
cpufreq.c cpufreq: Allow light-weight tear down and bring up of CPUs 2019-02-12 23:47:42 +01:00
cpufreq_conservative.c cpufreq: conservative: Take limits changes into account properly 2018-10-16 12:34:45 +02:00
cpufreq_governor.c cpufreq/cpufreq_governor: Replace synchronize_sched() with synchronize_rcu() 2018-11-27 09:21:38 -08:00
cpufreq_governor.h cpufreq: Replace "max_transition_latency" with "dynamic_switching" 2017-07-26 00:15:45 +02:00
cpufreq_governor_attr_set.c cpufreq: governor: Move abstract gov_attr_set code to seperate file 2016-04-02 01:09:01 +02:00
cpufreq_ondemand.c cpufreq: governor: Drop min_sampling_rate 2017-07-22 02:25:20 +02:00
cpufreq_ondemand.h cpufreq: ondemand: Don't keep a copy of freq_table pointer 2016-06-09 00:58:06 +02:00
cpufreq_performance.c cpufreq: governor: Get rid of governor events 2016-06-02 23:24:15 +02:00
cpufreq_powersave.c cpufreq: governor: Get rid of governor events 2016-06-02 23:24:15 +02:00
cpufreq_stats.c cpufreq: stats: Fix concurrency issues while resetting stats 2019-02-01 11:52:11 +01:00
cpufreq_userspace.c cpufreq: governor: Get rid of governor events 2016-06-02 23:24:15 +02:00
davinci-cpufreq.c ARM: davinci: da850: fix da850_set_pll0rate() 2017-01-02 15:02:51 +05:30
e_powersaver.c cpufreq: e_powersaver: Use struct_size() in kzalloc() 2019-01-15 22:58:59 +01:00
elanfreq.c cpufreq: elanfreq: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
freq_table.c cpufreq: Drop cpufreq_table_validate_and_show() 2018-04-10 08:40:45 +02:00
gx-suspmod.c cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag 2017-07-26 00:15:46 +02:00
highbank-cpufreq.c
ia64-acpi-cpufreq.c cpufreq: ia64: Remove unused header files 2018-12-11 12:11:46 +01:00
imx6q-cpufreq.c cpufreq: imx6q: Use auto-registration of thermal cooling device 2019-01-30 23:06:08 +01:00
intel_pstate.c cpufreq: Use struct kobj_attribute instead of struct global_attr 2019-01-29 11:44:30 +01:00
Kconfig thermal: cpu_cooling: Require thermal core to be compiled in 2019-01-29 11:46:31 +01:00
Kconfig.arm thermal: cpu_cooling: Require thermal core to be compiled in 2019-01-29 11:46:31 +01:00
Kconfig.powerpc
Kconfig.x86 sched/x86: Change CONFIG_SCHED_ITMT to CONFIG_SCHED_MC_PRIO 2016-11-30 08:27:08 +01:00
kirkwood-cpufreq.c cpufreq: kirkwood-cpufreq:- Handle return value of clk_prepare_enable() 2017-05-30 00:09:41 +02:00
longhaul.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
longhaul.h
longrun.c cpufreq: Don't set transition_latency for setpolicy drivers 2017-07-26 00:15:43 +02:00
loongson1-cpufreq.c CPUFREQ: Loongson1: Replace goto out with return in ls1x_cpufreq_probe() 2016-05-13 14:02:08 +02:00
loongson2_cpufreq.c cpufreq: Loongson2: constify platform_device_id 2017-08-18 01:44:21 +02:00
Makefile cpufreq: qcom-hw: Add support for QCOM cpufreq HW driver 2018-12-18 23:43:09 +01:00
maple-cpufreq.c cpufreq: Use consistent prefixing via pr_fmt 2016-04-09 01:35:18 +02:00
mediatek-cpufreq.c cpufreq: mediatek: Use auto-registration of thermal cooling device 2019-01-30 23:06:08 +01:00
mvebu-cpufreq.c cpufreq: mvebu: Remove OPPs using dev_pm_opp_remove() 2018-09-19 14:56:44 -07:00
omap-cpufreq.c PM / OPP: Update OPP users to put reference 2017-01-30 09:22:21 +01:00
p4-clockmod.c cpufreq: p4-clockmod: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
pasemi-cpufreq.c cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx() 2018-02-08 10:21:39 +01:00
pcc-cpufreq.c Merge back cpufreq material for 4.19. 2018-07-25 13:28:01 +02:00
pmac32-cpufreq.c drivers/cpufreq: change CONFIG_6xx to CONFIG_PPC_BOOK3S_32 2018-11-26 22:33:37 +11:00
pmac64-cpufreq.c cpufreq: pmac64: add of_node_put() 2018-11-29 22:35:03 +01:00
powernow-k6.c cpufreq: powernow: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
powernow-k7.c cpufreq: powernow: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
powernow-k7.h
powernow-k8.c cpufreq: powernow: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
powernow-k8.h
powernv-cpufreq.c cpufreq: powernv: add of_node_put() 2018-11-29 22:33:32 +01:00
ppc_cbe_cpufreq.c cpufreq: ppc_cbe: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
ppc_cbe_cpufreq.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ppc_cbe_cpufreq_pervasive.c
ppc_cbe_cpufreq_pmi.c cpufreq: Remove CPUFREQ_START notifier event 2017-02-04 00:05:30 +01:00
pxa2xx-cpufreq.c cpufreq: pxa: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
pxa3xx-cpufreq.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
qcom-cpufreq-hw.c cpufreq: qcom-hw: Register as a cpufreq cooling device 2019-01-30 23:06:08 +01:00
qcom-cpufreq-kryo.c cpufreq: qcom-kryo: Fix section annotations 2018-09-29 15:01:10 +02:00
qoriq-cpufreq.c cpufreq: qoriq: Use auto-registration of thermal cooling device 2019-01-30 23:06:08 +01:00
s3c24xx-cpufreq-debugfs.c cpufreq: s3c24xx: Change to use DEFINE_SHOW_ATTRIBUTE macro 2018-11-29 22:30:05 +01:00
s3c24xx-cpufreq.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
s3c64xx-cpufreq.c cpufreq: s3c64xx: remove incorrect __init annotation 2016-12-21 02:54:18 +01:00
s3c2410-cpufreq.c
s3c2412-cpufreq.c cpufreq: Use consistent prefixing via pr_fmt 2016-04-09 01:35:18 +02:00
s3c2416-cpufreq.c cpufreq: s3c2416: double free on driver init error path 2017-02-09 01:22:45 +01:00
s3c2440-cpufreq.c cpufreq: s3c2440: fix spelling mistake: "divsiors" -> "divisors" 2018-05-10 11:50:42 +02:00
s5pv210-cpufreq.c cpufreq: Convert to using %pOFn instead of device_node.name 2018-09-10 12:20:28 +02:00
sa1100-cpufreq.c cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag 2017-07-26 00:15:46 +02:00
sa1110-cpufreq.c cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag 2017-07-26 00:15:46 +02:00
sc520_freq.c cpufreq: sc520: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
scmi-cpufreq.c cpufreq: scmi: Use auto-registration of thermal cooling device 2019-01-30 23:06:08 +01:00
scpi-cpufreq.c cpufreq: scpi: Use auto-registration of thermal cooling device 2019-01-30 23:06:08 +01:00
sfi-cpufreq.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
sh-cpufreq.c cpufreq: sh: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
sparc-us2e-cpufreq.c cpufreq: sparc: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
sparc-us3-cpufreq.c cpufreq: sparc: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
spear-cpufreq.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
speedstep-centrino.c cpufreq: speedstep: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
speedstep-ich.c cpufreq: speedstep: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
speedstep-lib.c cpufreq: speedstep: fix speedstep_detect_processor()'s return type 2018-05-10 11:46:00 +02:00
speedstep-lib.h
speedstep-smi.c cpufreq: speedstep: Don't validate the frequency table twice 2018-03-20 12:07:52 +01:00
sti-cpufreq.c cpufreq: Convert to using %pOF instead of full_name 2017-08-25 01:20:46 +02:00
tango-cpufreq.c cpufreq: dt: Don't use generic platdev driver for tango 2017-07-22 02:20:59 +02:00
tegra20-cpufreq.c cpufreq: tegra20: Wrap cpufreq into platform driver 2018-05-21 13:44:24 +02:00
tegra124-cpufreq.c cpufreq: tegra124: No need of setting platform-data 2016-04-09 01:12:09 +02:00
tegra186-cpufreq.c cpufreq: tegra186: don't pass GFP_DMA32 to dma_alloc_coherent() 2018-10-17 09:25:38 +02:00
ti-cpufreq.c cpufreq: ti-cpufreq: Only register platform_device when supported 2018-11-19 11:26:06 +01:00
unicore2-cpufreq.c cpufreq: Add CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING cpufreq driver flag 2017-07-26 00:15:46 +02:00
vexpress-spc-cpufreq.c cpufreq: arm_big_little: make cpufreq_arm_bL_ops structures const 2017-11-08 23:22:20 +01:00