Files
ubports_kernel_google_msm/include
Thomas Gleixner 4ac13294e4 perf counters: protect them against CSTATE transitions
Impact: fix rare lost events problem

There are CPUs whose performance counters misbehave on CSTATE transitions,
so provide a way to just disable/enable them around deep idle methods.

(hw_perf_enable_all() is cheap on x86.)

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-12-11 15:45:45 +01:00
..
2008-11-27 02:17:30 -05:00