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| author | Zaid Al-Bassam <zalbassam@google.com> | 2023-03-17 15:50:22 -0400 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-03-27 14:01:18 +0100 |
| commit | 711432770f78e5a9ae235a1a55decfb71993c958 (patch) | |
| tree | 9bf498bedab09e21f74cf6680e231e7a1a980b7b /drivers/perf/arm_pmuv3.c | |
| parent | df29ddf4f04b00cf60669686dc7f534c3ed7c433 (diff) | |
| download | linux-711432770f78e5a9ae235a1a55decfb71993c958.tar.gz linux-711432770f78e5a9ae235a1a55decfb71993c958.tar.bz2 linux-711432770f78e5a9ae235a1a55decfb71993c958.zip | |
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 'drivers/perf/arm_pmuv3.c')
| -rw-r--r-- | drivers/perf/arm_pmuv3.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/perf/arm_pmuv3.c b/drivers/perf/arm_pmuv3.c index f783f068d612..f7d890af8cc1 100644 --- a/drivers/perf/arm_pmuv3.c +++ b/drivers/perf/arm_pmuv3.c @@ -392,7 +392,7 @@ static const struct attribute_group armv8_pmuv3_caps_attr_group = { */ static bool armv8pmu_has_long_event(struct arm_pmu *cpu_pmu) { - return (cpu_pmu->pmuver >= ID_AA64DFR0_EL1_PMUVer_V3P5); + return (is_pmuv3p5(cpu_pmu->pmuver)); } static inline bool armv8pmu_event_has_user_read(struct perf_event *event) @@ -1084,8 +1084,7 @@ static void __armv8pmu_probe_pmu(void *info) int pmuver; pmuver = read_pmuver(); - if (pmuver == ID_AA64DFR0_EL1_PMUVer_IMP_DEF || - pmuver == ID_AA64DFR0_EL1_PMUVer_NI) + if (!pmuv3_implemented(pmuver)) return; cpu_pmu->pmuver = pmuver; @@ -1111,7 +1110,7 @@ static void __armv8pmu_probe_pmu(void *info) pmceid, ARMV8_PMUV3_MAX_COMMON_EVENTS); /* store PMMIR register for sysfs */ - if (pmuver >= ID_AA64DFR0_EL1_PMUVer_V3P4 && (pmceid_raw[1] & BIT(31))) + if (is_pmuv3p4(pmuver) && (pmceid_raw[1] & BIT(31))) cpu_pmu->reg_pmmir = read_pmmir(); else cpu_pmu->reg_pmmir = 0; |