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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /tools/perf/arch/arm64/util/pmu.c
parentInitial commit. (diff)
downloadlinux-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.c49
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;
+}