[PATCH 0/4] perf IRQ fixes
Will Deacon
will.deacon at arm.com
Thu Feb 23 10:58:12 EST 2012
Hello,
This series is a set of fixes to the IRQ handling for perf-events on
ARM. Thanks to Ming Lei for identifying a couple of the issues addressed
here.
I tested the xscale2 changes on my Gumstix Verdex (PXA270 although the
board isn't actually supported in mainline), the v6 changes on a PB1176
and the v7 changes on a Cortex-A9 vexpress.
I think all of these are candidates for -stable, although it may be too
late for the final cut of 3.3.
All comments welcome,
Will
Will Deacon (4):
ARM: perf: limit sample_period to half max_period in non-sampling
mode
ARM: perf: clear overflow flag when disabling counter on ARMv7 PMU
ARM: perf: check that we have an event in the PMU IRQ handlers
ARM: perf: fix overflow handling for xscale2 PMUs
arch/arm/include/asm/pmu.h | 2 +-
arch/arm/kernel/perf_event.c | 22 +++++++++++-----------
arch/arm/kernel/perf_event_v6.c | 22 +++-------------------
arch/arm/kernel/perf_event_v7.c | 11 ++++++++++-
arch/arm/kernel/perf_event_xscale.c | 20 ++++++++++++++++----
5 files changed, 41 insertions(+), 36 deletions(-)
--
1.7.4.1
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