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author | Jiri Kosina <jkosina@suse.cz> | 2023-04-26 23:52:34 +0300 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2023-04-26 23:52:34 +0300 |
commit | cdc780f044a803aff8845b949f800f0f3d095d5f (patch) | |
tree | 6695a80568f6b4aef414070f17859f434e229957 /tools/perf/arch/arm64/util/pmu.c | |
parent | 38518593ec55e897abda4b4be77b2ec8ec4447d1 (diff) | |
parent | 37386669887d3f2ccf021322c5558353d20f2387 (diff) | |
download | linux-cdc780f044a803aff8845b949f800f0f3d095d5f.tar.xz |
Merge branch 'for-6.4/amd-sfh' into for-linus
- assorted functional fixes for amd-sfh driver (Basavaraj Natikar)
Diffstat (limited to 'tools/perf/arch/arm64/util/pmu.c')
-rw-r--r-- | tools/perf/arch/arm64/util/pmu.c | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/tools/perf/arch/arm64/util/pmu.c b/tools/perf/arch/arm64/util/pmu.c index 477e513972a4..fa143acb4c8d 100644 --- a/tools/perf/arch/arm64/util/pmu.c +++ b/tools/perf/arch/arm64/util/pmu.c @@ -3,8 +3,10 @@ #include <internal/cpumap.h> #include "../../../util/cpumap.h" #include "../../../util/pmu.h" +#include <api/fs/fs.h> +#include <math.h> -const struct pmu_events_table *pmu_events_table__find(void) +static struct perf_pmu *pmu__find_core_pmu(void) { struct perf_pmu *pmu = NULL; @@ -19,8 +21,46 @@ const struct pmu_events_table *pmu_events_table__find(void) if (pmu->cpus->nr != cpu__max_cpu().cpu) return NULL; - return perf_pmu__find_table(pmu); + return pmu; } + return NULL; +} + +const struct pmu_metrics_table *pmu_metrics_table__find(void) +{ + struct perf_pmu *pmu = pmu__find_core_pmu(); + + if (pmu) + return perf_pmu__find_metrics_table(pmu); return NULL; } + +const struct pmu_events_table *pmu_events_table__find(void) +{ + struct perf_pmu *pmu = pmu__find_core_pmu(); + + if (pmu) + return perf_pmu__find_events_table(pmu); + + return NULL; +} + +double perf_pmu__cpu_slots_per_cycle(void) +{ + char path[PATH_MAX]; + unsigned long long slots = 0; + struct perf_pmu *pmu = pmu__find_core_pmu(); + + if (pmu) { + perf_pmu__pathname_scnprintf(path, sizeof(path), + pmu->name, "caps/slots"); + /* + * The value of slots is not greater than 32 bits, but sysfs__read_int + * can't read value with 0x prefix, so use sysfs__read_ull instead. + */ + sysfs__read_ull(path, &slots); + } + + return slots ? (double)slots : NAN; +} |