perf: arm_cspmu: ampere_cspmu: Add support for Ampere SoC PMU

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Ampere SoC PMU follows CoreSight PMU architecture. It uses implementation
specific registers to filter events rather than PMEVFILTnR registers.

Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Link: https://lore.kernel.org/r/20230913233941.9814-5-ilkka@os.amperecomputing.com
[will: Include linux/io.h in ampere_cspmu.c for writel()]
Signed-off-by: Will Deacon <will@kernel.org>

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Ilkka Koskinen 2023-09-13 16:39:41 -07:00 • committed by Will Deacon

parent 647d5c5a9e

commit 53a810ad3c

6 changed files with 322 additions and 0 deletions

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29

Documentation/admin-guide/perf/ampere_cspmu.rst

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10

drivers/perf/arm_cspmu/Kconfig

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2

drivers/perf/arm_cspmu/Makefile

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272

drivers/perf/arm_cspmu/ampere_cspmu.c

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8

drivers/perf/arm_cspmu/arm_cspmu.c

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1

drivers/perf/arm_cspmu/arm_cspmu.h

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