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| author | Zaid Al-Bassam <zalbassam@google.com> | 2023-03-17 22:50:22 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-03-27 16:01:18 +0300 |
| commit | 711432770f78e5a9ae235a1a55decfb71993c958 (patch) | |
| tree | 9bf498bedab09e21f74cf6680e231e7a1a980b7b /arch/arm64/include/asm/arm_pmuv3.h | |
| parent | df29ddf4f04b00cf60669686dc7f534c3ed7c433 (diff) | |
| download | linux-711432770f78e5a9ae235a1a55decfb71993c958.tar.xz | |
perf: pmuv3: Abstract PMU version checks
The current PMU version definitions are available for arm64 only,
As we want to add PMUv3 support to arm (32-bit), abstracts
these definitions by using arch-specific helpers.
Signed-off-by: Zaid Al-Bassam <zalbassam@google.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230317195027.3746949-4-zalbassam@google.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/arm_pmuv3.h')
| -rw-r--r-- | arch/arm64/include/asm/arm_pmuv3.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/arm_pmuv3.h b/arch/arm64/include/asm/arm_pmuv3.h index c444cbfb3acd..80cdfa4c3e88 100644 --- a/arch/arm64/include/asm/arm_pmuv3.h +++ b/arch/arm64/include/asm/arm_pmuv3.h @@ -134,4 +134,20 @@ static inline u32 read_pmceid1(void) return read_sysreg(pmceid1_el0); } +static inline bool pmuv3_implemented(int pmuver) +{ + return !(pmuver == ID_AA64DFR0_EL1_PMUVer_IMP_DEF || + pmuver == ID_AA64DFR0_EL1_PMUVer_NI); +} + +static inline bool is_pmuv3p4(int pmuver) +{ + return pmuver >= ID_AA64DFR0_EL1_PMUVer_V3P4; +} + +static inline bool is_pmuv3p5(int pmuver) +{ + return pmuver >= ID_AA64DFR0_EL1_PMUVer_V3P5; +} + #endif |