arm64: add sysfs cpu_capacity attribute

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Add a sysfs cpu_capacity attribute with which it is possible to read and
write (thus over-writing default values) CPUs capacity. This might be
useful in situations where values needs changing after boot.

The new attribute shows up as:

 /sys/devices/system/cpu/cpu*/cpu_capacity

Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

...

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Juri Lelli 2016-11-03 05:40:18 +00:00 • committed by Catalin Marinas

parent 7202bde8b7

commit be8f185d8a

1 changed files with 64 additions and 0 deletions

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arch/arm64/kernel/topology.c

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