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ARM: 7663/1: perf: fix ARMv7 EVTYPE_MASK to include NSH bit 

Masked out PMXEVTYPER.NSH means that we can't enable profiling at PL2,
regardless of the settings in the HDCR.

This patch fixes the broken mask.

Cc: <stable@vger.kernel.org>
Reported-by: Christoffer Dall <cdall@cs.columbia.edu>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Will Deacon 2013-02-28 17:49:11 +01:00 committed by Russell King
parent 1a8e611874
commit f2fe09b055
1 changed files with 1 additions and 1 deletions
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2
arch/arm/kernel/perf_event_v7.c
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@ -774,7 +774,7 @@ static const unsigned armv7_a7_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
/*
* PMXEVTYPER: Event selection reg
*/
#define ARMV7_EVTYPE_MASK 0xc00000ff /* Mask for writable bits */
#define ARMV7_EVTYPE_MASK 0xc80000ff /* Mask for writable bits */
#define ARMV7_EVTYPE_EVENT 0xff /* Mask for EVENT bits */
/*