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| author | James Clark <james.clark@arm.com> | 2023-12-11 19:13:18 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2023-12-12 12:46:22 +0300 |
| commit | f6da86969a3c284466ab6080764b2ed91689f262 (patch) | |
| tree | 5b9b89287e3d9e7e6806d4260a0d60776fbbf4f5 /drivers/perf/arm_pmuv3.c | |
| parent | 3115ee021bfb04efde2e96507bfcc1330261a6a1 (diff) | |
| download | linux-f6da86969a3c284466ab6080764b2ed91689f262.tar.xz | |
arm: pmu: Share user ABI format mechanism with SPE
This mechanism makes it much easier to define and read new attributes
so move it to the arm_pmu.h header so that it can be shared. At the same
time update the existing format attributes to use it.
GENMASK has to be changed to GENMASK_ULL because the config fields are
64 bits even on arm32 where this will also be used now.
Signed-off-by: James Clark <james.clark@arm.com>
Link: https://lore.kernel.org/r/20231211161331.1277825-7-james.clark@arm.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 | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/perf/arm_pmuv3.c b/drivers/perf/arm_pmuv3.c index 441bf73ee3d5..8a573db81da1 100644 --- a/drivers/perf/arm_pmuv3.c +++ b/drivers/perf/arm_pmuv3.c @@ -299,20 +299,31 @@ static const struct attribute_group armv8_pmuv3_events_attr_group = { .is_visible = armv8pmu_event_attr_is_visible, }; -PMU_FORMAT_ATTR(event, "config:0-15"); -PMU_FORMAT_ATTR(long, "config1:0"); -PMU_FORMAT_ATTR(rdpmc, "config1:1"); +/* User ABI */ +#define ATTR_CFG_FLD_event_CFG config +#define ATTR_CFG_FLD_event_LO 0 +#define ATTR_CFG_FLD_event_HI 15 +#define ATTR_CFG_FLD_long_CFG config1 +#define ATTR_CFG_FLD_long_LO 0 +#define ATTR_CFG_FLD_long_HI 0 +#define ATTR_CFG_FLD_rdpmc_CFG config1 +#define ATTR_CFG_FLD_rdpmc_LO 1 +#define ATTR_CFG_FLD_rdpmc_HI 1 + +GEN_PMU_FORMAT_ATTR(event); +GEN_PMU_FORMAT_ATTR(long); +GEN_PMU_FORMAT_ATTR(rdpmc); static int sysctl_perf_user_access __read_mostly; static bool armv8pmu_event_is_64bit(struct perf_event *event) { - return event->attr.config1 & 0x1; + return ATTR_CFG_GET_FLD(&event->attr, long); } static bool armv8pmu_event_want_user_access(struct perf_event *event) { - return event->attr.config1 & 0x2; + return ATTR_CFG_GET_FLD(&event->attr, rdpmc); } static struct attribute *armv8_pmuv3_format_attrs[] = { |