ARM: perf: allow armpmu to implement mode exclusion

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Modern PMUs allow for mode exclusion, so we no longer wish to return
-EPERM if it is requested.

This patch provides a hook in the armpmu structure for implementing
mode exclusion. The hw_perf_event initialisation is slightly delayed so
that the backend code can update the structure if required.

Acked-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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This commit is contained in:

Will Deacon 2011-07-19 11:57:30 +01:00

parent ecf5a89321

commit 05d22fde3c

1 changed files with 25 additions and 19 deletions

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arch/arm/kernel/perf_event.c

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