ARM: perf: check ARMv7 counter validity on a per-pmu basis

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Multi-cluster ARMv7 systems may have CPU PMUs with different number of
counters.

This patch updates armv7_pmnc_counter_valid so that it takes a pmu
argument and checks the counter validity against that. We also remove a
number of redundant counter checks whether the current PMU is not easily
retrievable.

Signed-off-by: Sudeep KarkadaNagesha <Sudeep.KarkadaNagesha@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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Sudeep KarkadaNagesha 2012-07-20 15:18:07 +01:00 • committed by Will Deacon

parent ed6f2a5223

commit 7279adbd9b

1 changed files with 30 additions and 64 deletions

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arch/arm/kernel/perf_event_v7.c

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