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ARM: perf: don't pretend to support counting of L1I writes
authorWill Deacon <will.deacon@arm.com>
Wed, 16 Jan 2013 12:01:59 +0000 (12:01 +0000)
committerWill Deacon <will.deacon@arm.com>
Wed, 16 Jan 2013 12:01:59 +0000 (12:01 +0000)
commit40c390c768f898497e17d934f6715d516ff67294
tree87f49311dfb80e19d790fa76f97ceed0536e7628tree | snapshot (tar.gz zip)
parent1764c591dfed2ce7075465df0591ce9564ff37a1commit | diff
ARM: perf: don't pretend to support counting of L1I writes

ARM has a harvard cache architecture and cannot write directly to the
I-side.

This patch removes the L1I write events from the cache map (which
previously returned *read* events in many cases).

Reported-by: Mike Williams <michael.williams@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
arch/arm/kernel/perf_event_v6.c diff | blob | blame | history
arch/arm/kernel/perf_event_v7.c diff | blob | blame | history
arch/arm/kernel/perf_event_xscale.c diff | blob | blame | history