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(parent: 3b23d77) | patch
arm64: perf: Extend ARMV8_EVTYPE_MASK to include PMCR.LC
authorWill Deacon <will.deacon@arm.com>
Mon, 29 Feb 2016 23:15:44 +0000 (23:15 +0000)
committerWill Deacon <will.deacon@arm.com>
Mon, 29 Feb 2016 23:23:59 +0000 (23:23 +0000)
commitfe638401a091f4473e9e30942ea3cecc0c0b2b94
treedfb46b779a57a03f05a76423b6122b578a55e359tree | snapshot (tar.gz zip)
parent3b23d77b4258558a317157b18cf418eeea4ca788commit | diff
arm64: perf: Extend ARMV8_EVTYPE_MASK to include PMCR.LC

Commit 7175f0591eb9 ("arm64: perf: Enable PMCR long cycle counter bit")
added initial support for a 64-bit cycle counter enabled using PMCR.LC.

Unfortunately, that patch doesn't extend ARMV8_EVTYPE_MASK, so any
attempts to set the enable bit are ignored by armv8pmu_pmcr_write.

This patch extends the mask to include the new bit.

Signed-off-by: Will Deacon <will.deacon@arm.com>
arch/arm64/kernel/perf_event.c diff | blob | blame | history