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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /tools/perf/arch/arm64/util/pmu.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/perf/arch/arm64/util/pmu.c')
-rw-r--r-- | tools/perf/arch/arm64/util/pmu.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/tools/perf/arch/arm64/util/pmu.c b/tools/perf/arch/arm64/util/pmu.c new file mode 100644 index 0000000000..615084eb88 --- /dev/null +++ b/tools/perf/arch/arm64/util/pmu.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <internal/cpumap.h> +#include "../../../util/cpumap.h" +#include "../../../util/header.h" +#include "../../../util/pmu.h" +#include "../../../util/pmus.h" +#include <api/fs/fs.h> +#include <math.h> + +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 + * filename__read_int can't read value with 0x prefix, + * so use filename__read_ull instead. + */ + filename__read_ull(path, &slots); + } + + return slots ? (double)slots : NAN; +} |