arm64: perf: Include threshold control fields in PMEVTYPER mask
authorJames Clark <james.clark@arm.com>
Mon, 11 Dec 2023 16:13:17 +0000 (16:13 +0000)
committerWill Deacon <will@kernel.org>
Tue, 12 Dec 2023 09:46:22 +0000 (09:46 +0000)
commit3115ee021bfb04efde2e96507bfcc1330261a6a1
tree8eebb641f4e5df35c27c3712790c2643eaaebe53
parentd30f09b6d7de5d159dbb537f9d67dceb67409420
arm64: perf: Include threshold control fields in PMEVTYPER mask

FEAT_PMUv3_TH (Armv8.8) adds two new fields to PMEVTYPER, so include
them in the mask. These aren't writable on 32 bit kernels as they are in
the high part of the register, so only include them for arm64.

It would be difficult to do this statically in the asm header files for
each platform without resulting in circular includes or #ifdefs inline
in the code. For that reason the ARMV8_PMU_EVTYPE_MASK definition has
been removed and the mask is constructed programmatically.

Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: James Clark <james.clark@arm.com>
Link: https://lore.kernel.org/r/20231211161331.1277825-6-james.clark@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
drivers/perf/arm_pmuv3.c
include/linux/perf/arm_pmuv3.h