Messages in this thread | | | Date | Tue, 7 Nov 2023 10:55:52 +0000 | From | Will Deacon <> | Subject | Re: [PATCH v3] arm64/arm: arm_pmuv3: perf: Don't truncate 64-bit registers |
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On Thu, Nov 02, 2023 at 11:30:12AM -0700, Ilkka Koskinen wrote: > The driver used to truncate several 64-bit registers such as PMCEID[n] > registers used to describe whether architectural and microarchitectural > events in range 0x4000-0x401f exist. Due to discarding the bits, the > driver made the events invisible, even if they existed. > > Moreover, PMCCFILTR and PMCR registers have additional bits in the upper > 32 bits. This patch makes them available although they aren't currently > used. Finally, functions handling PMXEVCNTR and PMXEVTYPER registers are > removed as they not being used at all. > > Fixes: df29ddf4f04b ("arm64: perf: Abstract system register accesses away") > Reported-by: Carl Worth <carl@os.amperecomputing.com> > Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Acked-by: Will Deacon <will@kernel.org>
Catalin -- another perf fix for you, thanks!
Will
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