diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2023-03-17 22:50:20 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-03-27 16:01:18 +0300 |
| commit | 7755cec63adeecea3cbbf4032047812c37cf7cc3 (patch) | |
| tree | f1832d4d28dfc836fa6c5c492b323021295a6cc9 /drivers/perf/Kconfig | |
| parent | e8d018dd0257f744ca50a729e3d042cf2ec9da65 (diff) | |
| download | linux-7755cec63adeecea3cbbf4032047812c37cf7cc3.tar.xz | |
arm64: perf: Move PMUv3 driver to drivers/perf
Having the ARM PMUv3 driver sitting in arch/arm64/kernel is getting
in the way of being able to use perf on ARMv8 cores running a 32bit
kernel, such as 32bit KVM guests.
This patch moves it into drivers/perf/arm_pmuv3.c, with an include
file in include/linux/perf/arm_pmuv3.h. The only thing left in
arch/arm64 is some mundane perf stuff.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Zaid Al-Bassam <zalbassam@google.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230317195027.3746949-2-zalbassam@google.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf/Kconfig')
| -rw-r--r-- | drivers/perf/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/perf/Kconfig b/drivers/perf/Kconfig index 66c259000a44..defe6b47854b 100644 --- a/drivers/perf/Kconfig +++ b/drivers/perf/Kconfig @@ -100,6 +100,17 @@ config ARM_SMMU_V3_PMU through the SMMU and allow the resulting information to be filtered based on the Stream ID of the corresponding master. +config ARM_PMUV3 + depends on HW_PERF_EVENTS && ARM64 + bool "ARM PMUv3 support" if !ARM64 + default y + help + Say y if you want to use the ARM performance monitor unit (PMU) + version 3. The PMUv3 is the CPU performance monitors on ARMv8 + (aarch32 and aarch64) systems that implement the PMUv3 + architecture. + Currently, PMUv3 is only supported on aarch64 (arm64) + config ARM_DSU_PMU tristate "ARM DynamIQ Shared Unit (DSU) PMU" depends on ARM64 |