arm64: cpufeature: Don't enforce system-wide SPE capability

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The statistical profiling extension (SPE) is an optional feature of
ARMv8.1 and is unlikely to be supported by all of the CPUs in a
heterogeneous system.

This patch updates the cpufeature checks so that such systems are not
tainted as unsupported.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Suzuki Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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This commit is contained in:

Will Deacon 2016-09-22 11:23:07 +01:00

parent b20d1ba3cf

commit f31deaadff

2 changed files with 3 additions and 1 deletions

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1

arch/arm64/include/asm/sysreg.h

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3

arch/arm64/kernel/cpufeature.c

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