Chen Yu 4578ee7e1d intel_pstate: Avoid unnecessary synchronize_sched() during initialization ...

Currently, in intel_pstate_clear_update_util_hook(), after
clearing the utilization update hook, we leverage
synchronize_sched() to deal with synchronization, which
is a little bit time-costly because synchronize_sched()
has to wait for all the CPUs to go through a grace period.

Actually, the synchronize_sched() is not necessary if the utilization
update hook has not been set for the given CPU yet, so make the driver
check if that's the case and avoid the synchronize_sched() call then.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=116371
Tested-by: Tian Ye <yex.tian@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
[ rjw : Rebase ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

2016-05-11 22:56:34 +02:00

..

acpi-cpufreq.c

cpufreq: ACPI: Remove freq_table from acpi_cpufreq_data

2016-04-09 01:54:31 +02:00

amd_freq_sensitivity.c

cpufreq: governor: Make governor private data per-policy

2016-03-09 14:41:08 +01:00

arm_big_little_dt.c

cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table

2016-05-05 01:40:04 +02:00

arm_big_little.c

cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table

2016-05-05 01:40:04 +02:00

arm_big_little.h

cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table

2016-05-05 01:40:04 +02:00

at32ap-cpufreq.c

cpufreq: at32ap: don't declare local variable as static

2014-04-07 14:31:33 +02:00

blackfin-cpufreq.c

blackfin-cpufreq: Mark cpu_set_cclk() as static

2015-12-28 01:51:36 +01:00

cppc_cpufreq.c

cpufreq: ACPI / CPPC: Add module support for cppc_cpufreq driver

2016-04-25 15:59:35 +02:00

cpufreq_conservative.c

cpufreq: governor: New data type for management part of dbs_data

2016-04-02 01:09:00 +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_governor.c

cpufreq: governor: Fix handling of special cases in dbs_update()

2016-05-06 14:24:23 +02:00

cpufreq_governor.h

cpufreq: governor: Change confusing struct field and variable names

2016-04-28 15:10:08 +02:00

cpufreq_ondemand.c

cpufreq: governor: New data type for management part of dbs_data

2016-04-02 01:09:00 +02:00

cpufreq_ondemand.h

cpufreq: governor: Relocate definitions of tuners structures

2016-03-09 14:41:09 +01:00

cpufreq_performance.c

cpufreq: Clean up default and fallback governor setup

2016-02-05 02:37:42 +01:00

cpufreq_powersave.c

cpufreq: Clean up default and fallback governor setup

2016-02-05 02:37:42 +01:00

cpufreq_stats.c

cpufreq: stats: drop unnecessary locking

2015-01-23 23:06:45 +01:00

cpufreq_userspace.c

cpufreq: Fix GOV_LIMITS handling for the userspace governor

2016-05-05 01:30:38 +02:00

cpufreq-dt-platdev.c

cpufreq: tango: Use generic platdev driver

2016-05-05 01:36:57 +02:00

cpufreq-dt.c

cpufreq: dt: Kill platform-data

2016-04-28 15:22:43 +02:00

cpufreq-nforce2.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

cpufreq.c

Merge cpufreq fixes going into v4.6.

2016-05-06 22:01:14 +02:00

cris-artpec3-cpufreq.c

cpufreq: create another field .flags in cpufreq_frequency_table

2014-04-07 14:43:50 +02:00

cris-etraxfs-cpufreq.c

cpufreq: create another field .flags in cpufreq_frequency_table

2014-04-07 14:43:50 +02:00

davinci-cpufreq.c

cpufreq: drop owner assignment from platform_drivers

2014-10-20 16:20:24 +02:00

dbx500-cpufreq.c

cpufreq: drop owner assignment from platform_drivers

2014-10-20 16:20:24 +02:00

e_powersaver.c

cpufreq: e_powersaver: Use IS_ENABLED() instead of checking for built-in or module

2016-04-27 22:42:34 +02:00

elanfreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

exynos5440-cpufreq.c

PM / OPP: Prefix exported opp routines with dev_pm_opp_

2015-09-15 02:03:16 +02:00

freq_table.c

cpufreq: Allow drivers to enable boost support after registering driver

2015-08-07 03:25:23 +02:00

gx-suspmod.c

cpufreq: gx-suspmod: Fix two typos in two comments

2015-06-15 15:46:15 +02:00

highbank-cpufreq.c

Merge branch 'mailbox-for-linus' of git://git.linaro.org/landing-teams/working/fujitsu/integration

2014-10-21 11:21:19 -07:00

ia64-acpi-cpufreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

imx6q-cpufreq.c

Merge branch 'pm-opp'

2015-11-02 00:54:37 +01:00

integrator-cpufreq.c

cpufreq: integrator: Fix module autoload for OF platform driver

2015-09-25 23:29:35 +02:00

intel_pstate.c

intel_pstate: Avoid unnecessary synchronize_sched() during initialization

2016-05-11 22:56:34 +02:00

Kconfig

Merge branch 'pm-cpufreq-sched' into pm-cpufreq

2016-05-11 22:48:20 +02:00

Kconfig.arm

cpufreq: hisilicon: Use generic platdev driver

2016-04-25 16:18:24 +02:00

Kconfig.powerpc

cpufreq: qoriq: rename the driver

2015-03-18 22:35:16 +01:00

Kconfig.x86

cpufreq: intel_pstate: Enforce _PPC limits

2016-04-28 01:01:39 +02:00

kirkwood-cpufreq.c

cpufreq: drop owner assignment from platform_drivers

2014-10-20 16:20:24 +02:00

longhaul.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

longhaul.h

cpufreq: delete __cpuinit usage from all cpufreq files

2013-07-14 19:36:57 -04:00

longrun.c

cpufreq: add new routine cpufreq_verify_within_cpu_limits()

2013-10-16 00:50:23 +02:00

loongson2_cpufreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

ls1x-cpufreq.c

MIPS: Loongson: Naming style cleanup and rework

2015-06-21 21:53:59 +02:00

Makefile

cpufreq: mvebu: Move cpufreq code into drivers/cpufreq/

2016-04-28 15:22:43 +02:00

maple-cpufreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

mt8173-cpufreq.c

cpufreq: mt8173: use list_for_each_entry*()

2016-04-09 01:27:54 +02:00

mvebu-cpufreq.c

cpufreq: mvebu: Move cpufreq code into drivers/cpufreq/

2016-04-28 15:22:43 +02:00

omap-cpufreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

p4-clockmod.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

pasemi-cpufreq.c

cpufreq: Use cpufreq_for_each_* macros for frequency table iteration

2014-04-30 00:06:21 +02:00

pcc-cpufreq.c

cpufreq: pcc-cpufreq: update default value of cpuinfo_transition_latency

2015-12-10 00:17:03 +01:00

pmac32-cpufreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

pmac64-cpufreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

powernow-k6.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

powernow-k7.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

powernow-k7.h

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

powernow-k8.c

ACPI / processor: Drop an unused argument of a cleanup routine

2015-07-22 22:11:16 +02:00

powernow-k8.h

cpufreq: powernow-k8: Suppress checkpatch warnings

2014-05-17 01:27:01 +02:00

powernv-cpufreq.c

cpufreq: powernv: del_timer_sync when global and local pstate are equal

2016-05-11 02:28:00 +02:00

ppc_cbe_cpufreq_pervasive.c

cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq

2013-04-10 13:19:26 +02:00

ppc_cbe_cpufreq_pmi.c

cpufreq: ppc_cbe_cpufreq_pmi: make the driver explicitly non-modular

2016-04-09 01:11:04 +02:00

ppc_cbe_cpufreq.c

cpufreq: Use cpufreq_for_each_* macros for frequency table iteration

2014-04-30 00:06:21 +02:00

ppc_cbe_cpufreq.h

cpufreq: e_powersaver: Use IS_ENABLED() instead of checking for built-in or module

2016-04-27 22:42:34 +02:00

pxa2xx-cpufreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

pxa3xx-cpufreq.c

cpufreq: Remove cpufreq_generic_exit()

2014-03-12 01:06:00 +01:00

qoriq-cpufreq.c

cpufreq: qoriq: Fix cooling device registration issue during suspend

2016-04-25 16:07:02 +02:00

s3c24xx-cpufreq-debugfs.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

s3c24xx-cpufreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

s3c64xx-cpufreq.c

cpufreq: Use cpufreq_for_each_* macros for frequency table iteration

2014-04-30 00:06:21 +02:00

s3c2410-cpufreq.c

cpufreq: s3c24xx: Remove some dead code

2014-07-19 04:24:59 +09:00

s3c2412-cpufreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

s3c2416-cpufreq.c

cpufreq: s3c: remove incorrect __init annotations

2015-02-19 06:36:53 +01:00

s3c2440-cpufreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

s5pv210-cpufreq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

sa1100-cpufreq.c

cpufreq: Mark ARM drivers with CPUFREQ_NEED_INITIAL_FREQ_CHECK flag

2014-01-06 14:17:25 +01:00

sa1110-cpufreq.c

cpufreq: sa1110: set memory type for h3600

2014-07-16 14:30:17 +02:00

sc520_freq.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

scpi-cpufreq.c

cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table

2016-05-05 01:40:04 +02:00

sfi-cpufreq.c

cpufreq: sfi: use kmemdup rather than duplicating its implementation

2015-09-01 15:51:15 +02:00

sh-cpufreq.c

cpufreq: Convert existing drivers to use cpufreq_freq_transition_{begin|end}

2014-03-26 16:41:41 +01:00

sparc-us2e-cpufreq.c

cpufreq: add 'freq_table' in struct cpufreq_policy

2014-03-12 01:06:00 +01:00

sparc-us3-cpufreq.c

cpufreq: add 'freq_table' in struct cpufreq_policy

2014-03-12 01:06:00 +01:00

spear-cpufreq.c

cpufreq: drop owner assignment from platform_drivers

2014-10-20 16:20:24 +02:00

speedstep-centrino.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

speedstep-ich.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

speedstep-lib.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

speedstep-lib.h

[CPUFREQ] Move x86 drivers to drivers/cpufreq/

2011-05-19 18:51:07 -04:00

speedstep-smi.c

cpufreq: Use consistent prefixing via pr_fmt

2016-04-09 01:35:18 +02:00

sti-cpufreq.c

cpufreq: st: enable selective initialization based on the platform

2016-04-28 15:25:56 +02:00

tegra20-cpufreq.c

cpufreq: tegra20: remove superfluous CONFIG_PM ifdefs

2015-09-26 03:00:57 +02:00

tegra124-cpufreq.c

cpufreq: tegra124: No need of setting platform-data

2016-04-09 01:12:09 +02:00

unicore2-cpufreq.c

cpufreq: unicore32: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO

2014-04-21 23:42:27 +02:00

vexpress-spc-cpufreq.c

cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table

2016-05-05 01:40:04 +02:00