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linux/drivers/cpufreq
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Lukasz Majewski 6f19efc0a1 cpufreq: Add boost frequency support in core 
This commit adds boost frequency support in cpufreq core (Hardware &
Software). Some SoCs (like Exynos4 - e.g. 4x12) allow setting frequency
above its normal operation limits. Such mode shall be only used for a
short time.

Overclocking (boost) support is essentially provided by platform
dependent cpufreq driver.

This commit unifies support for SW and HW (Intel) overclocking solutions
in the core cpufreq driver. Previously the "boost" sysfs attribute was
defined in the ACPI processor driver code. By default boost is disabled.
One global attribute is available at: /sys/devices/system/cpu/cpufreq/boost.

It only shows up when cpufreq driver supports overclocking.
Under the hood frequencies dedicated for boosting are marked with a
special flag (CPUFREQ_BOOST_FREQ) at driver's frequency table.
It is the user's concern to enable/disable overclocking with a proper call
to sysfs.

The cpufreq_boost_trigger_state() function is defined non static on purpose.
It is used later with thermal subsystem to provide automatic enable/disable
of the BOOST feature.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-01-17 02:00:44 +01:00
..
acpi-cpufreq.c Merge branch 'pm-cpufreq' 2013-11-07 19:26:02 +01:00
amd_freq_sensitivity.c cpufreq: AMD "frequency sensitivity feedback" powersave bias for ondemand governor 2013-04-10 13:19:26 +02:00
arm_big_little.c cpufreq: Mark ARM drivers with CPUFREQ_NEED_INITIAL_FREQ_CHECK flag 2014-01-06 14:17:25 +01:00
arm_big_little.h cpufreq: arm_big_little: add in-kernel switching (IKS) support 2013-10-31 00:10:53 +01:00
arm_big_little_dt.c PM / OPP: rename header to linux/pm_opp.h 2013-10-25 22:33:23 +02:00
at32ap-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
blackfin-cpufreq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
cpufreq-cpu0.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
cpufreq-nforce2.c cpufreq: nforce2: don't initialize part of policy set by core 2013-10-16 00:50:29 +02:00
cpufreq.c cpufreq: Add boost frequency support in core 2014-01-17 02:00:44 +01:00
cpufreq_conservative.c cpufreq: conservative: set requested_freq to policy max when it is over policy max 2013-11-12 23:18:20 +01:00
cpufreq_governor.c cpufreq: Fix timer/workqueue corruption by protecting reading governor_enabled 2014-01-06 01:22:02 +01:00
cpufreq_governor.h cpufreq: Fix timer/workqueue corruption by protecting reading governor_enabled 2014-01-06 01:22:02 +01:00
cpufreq_ondemand.c cpufreq: ondemand: Remove redundant return statement 2013-11-01 00:44:34 +01:00
cpufreq_performance.c cpufreq: Clean up header files included in the core 2013-08-07 23:34:09 +02:00
cpufreq_powersave.c cpufreq: Clean up header files included in the core 2013-08-07 23:34:09 +02:00
cpufreq_stats.c cpufreq: stats: create sysfs entries when cpufreq_stats is a module 2014-01-17 02:00:44 +01:00
cpufreq_userspace.c cpufreq / governor: Remove fossil comment 2013-10-17 23:00:20 +02:00
cris-artpec3-cpufreq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
cris-etraxfs-cpufreq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
davinci-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
dbx500-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
e_powersaver.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
elanfreq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
exynos-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
exynos-cpufreq.h cpufreq: fix EXYNOS drivers selection 2013-08-12 12:00:21 +05:30
exynos4x12-cpufreq.c cpufreq: exynos: Remove unwanted EXPORT_SYMBOL 2013-11-20 23:55:38 +01:00
exynos4210-cpufreq.c cpufreq: exynos: Remove unwanted EXPORT_SYMBOL 2013-11-20 23:55:38 +01:00
exynos5250-cpufreq.c cpufreq: exynos5250: Set APLL rate using CCF API 2014-01-06 01:26:00 +01:00
exynos5440-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
freq_table.c cpufreq: Add boost frequency support in core 2014-01-17 02:00:44 +01:00
gx-suspmod.c cpufreq: gx: don't initialize part of policy set by core 2013-10-16 00:50:30 +02:00
highbank-cpufreq.c cpufreq: highbank-cpufreq: Enable Midway/ECX-2000 2013-10-17 00:53:08 +02:00
ia64-acpi-cpufreq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
imx6q-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
integrator-cpufreq.c cpufreq: Mark ARM drivers with CPUFREQ_NEED_INITIAL_FREQ_CHECK flag 2014-01-06 14:17:25 +01:00
intel_pstate.c intel_pstate: Add trace point to report internal state. 2014-01-17 02:00:44 +01:00
Kconfig cpufreq: Select PM_OPP rather than depending on it 2013-12-22 22:03:49 +01:00
Kconfig.arm cpufreq: imx6q-cpufreq driver is reused on i.MX6 series SoCs 2014-01-06 13:33:45 +01:00
Kconfig.powerpc cpufreq: remove CONFIG_CPU_FREQ_TABLE 2013-10-16 00:50:33 +02:00
Kconfig.x86 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-11-15 16:47:22 -08:00
kirkwood-cpufreq.c cpufreq: Mark ARM drivers with CPUFREQ_NEED_INITIAL_FREQ_CHECK flag 2014-01-06 14:17:25 +01:00
longhaul.c cpufreq: Implement light weight ->target_index() routine 2013-10-25 22:42:24 +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: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
Makefile cpufreq: arm_big_little: add vexpress SPC interface driver 2013-10-30 00:48:26 +01:00
maple-cpufreq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
omap-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
p4-clockmod.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
pasemi-cpufreq.c ACPI and power management updates for 3.13-rc1 2013-11-14 13:41:48 +09:00
pcc-cpufreq.c cpufreq: send new set of notification for transition failures 2014-01-06 01:43:44 +01:00
pmac32-cpufreq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
pmac64-cpufreq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
powernow-k6.c powernow-k6: reorder frequencies 2014-01-06 15:53:07 +01:00
powernow-k7.c cpufreq: Implement light weight ->target_index() routine 2013-10-25 22:42:24 +02:00
powernow-k7.h [CPUFREQ] Move x86 drivers to drivers/cpufreq/ 2011-05-19 18:51:07 -04:00
powernow-k8.c cpufreq: send new set of notification for transition failures 2014-01-06 01:43:44 +01:00
powernow-k8.h cpufreq: Remove support for hardware P-state chips from powernow-k8 2012-09-09 22:05:30 +02:00
ppc-corenet-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
ppc_cbe_cpufreq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
ppc_cbe_cpufreq.h cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq 2013-04-10 13:19:26 +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: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq 2013-04-10 13:19:26 +02:00
pxa2xx-cpufreq.c cpufreq: Mark ARM drivers with CPUFREQ_NEED_INITIAL_FREQ_CHECK flag 2014-01-06 14:17:25 +01:00
pxa3xx-cpufreq.c cpufreq: Mark ARM drivers with CPUFREQ_NEED_INITIAL_FREQ_CHECK flag 2014-01-06 14:17:25 +01:00
s3c24xx-cpufreq-debugfs.c cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq 2013-05-20 23:04:28 +09:00
s3c24xx-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
s3c64xx-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
s3c2410-cpufreq.c cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq 2013-05-20 23:04:28 +09:00
s3c2412-cpufreq.c cpufreq: s3c24xx: move cpufreq driver to drivers/cpufreq 2013-05-20 23:04:28 +09:00
s3c2416-cpufreq.c cpufreq: Mark ARM drivers with CPUFREQ_NEED_INITIAL_FREQ_CHECK flag 2014-01-06 14:17:25 +01:00
s3c2440-cpufreq.c cpufreq: s3c2440: Staticize local variables 2014-01-06 01:18:33 +01:00
s5pv210-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
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: Mark ARM drivers with CPUFREQ_NEED_INITIAL_FREQ_CHECK flag 2014-01-06 14:17:25 +01:00
sc520_freq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
sh-cpufreq.c cpufreq: sh: don't initialize part of policy set by core 2013-10-16 00:50:32 +02:00
sparc-us2e-cpufreq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
sparc-us3-cpufreq.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
spear-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
speedstep-centrino.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
speedstep-ich.c cpufreq: move freq change notifications to cpufreq core 2013-10-31 00:11:08 +01:00
speedstep-lib.c cpufreq: Add support for x86 cpuinfo auto loading v4 2012-01-26 16:49:06 -08:00
speedstep-lib.h [CPUFREQ] Move x86 drivers to drivers/cpufreq/ 2011-05-19 18:51:07 -04:00
speedstep-smi.c cpufreq: speedstep: remove unused speedstep_get_state 2014-01-17 02:00:43 +01:00
tegra-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
unicore2-cpufreq.c cpufreq: introduce cpufreq_generic_get() routine 2014-01-17 02:00:44 +01:00
vexpress-spc-cpufreq.c cpufreq: arm_big_little: add vexpress SPC interface driver 2013-10-30 00:48:26 +01:00