linux

iv/linux

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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

Merge branches 'acpi-pci-pm' and 'acpi-pci-hotplug'

2013-12-31 22:03:37 +01:00

asm-generic

mm: Fix NULL pointer dereference in madvise(MADV_WILLNEED) support

2013-12-20 12:17:03 -08:00

clocksource

drivers: clocksource: add support for ARM architected timer event stream

2013-09-26 09:48:00 +01:00

crypto

crypto: scatterwalk - Use sg_chain_ptr on chain entries