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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:40:19 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:40:19 +0000 |
commit | 9f0fc191371843c4fc000a226b0a26b6c059aacd (patch) | |
tree | 35f8be3ef04506ac891ad001e8c41e535ae8d01d /tools/perf/arch/arm64 | |
parent | Releasing progress-linux version 6.6.15-2~progress7.99u1. (diff) | |
download | linux-9f0fc191371843c4fc000a226b0a26b6c059aacd.tar.xz linux-9f0fc191371843c4fc000a226b0a26b6c059aacd.zip |
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/perf/arch/arm64')
-rw-r--r-- | tools/perf/arch/arm64/util/arm-spe.c | 48 | ||||
-rw-r--r-- | tools/perf/arch/arm64/util/pmu.c | 20 |
2 files changed, 31 insertions, 37 deletions
diff --git a/tools/perf/arch/arm64/util/arm-spe.c b/tools/perf/arch/arm64/util/arm-spe.c index 9cc3d6dcb8..e3acc739bd 100644 --- a/tools/perf/arch/arm64/util/arm-spe.c +++ b/tools/perf/arch/arm64/util/arm-spe.c @@ -113,6 +113,25 @@ arm_spe_snapshot_resolve_auxtrace_defaults(struct record_opts *opts, } } +static __u64 arm_spe_pmu__sample_period(const struct perf_pmu *arm_spe_pmu) +{ + static __u64 sample_period; + + if (sample_period) + return sample_period; + + /* + * If kernel driver doesn't advertise a minimum, + * use max allowable by PMSIDR_EL1.INTERVAL + */ + if (perf_pmu__scan_file(arm_spe_pmu, "caps/min_interval", "%llu", + &sample_period) != 1) { + pr_debug("arm_spe driver doesn't advertise a min. interval. Using 4096\n"); + sample_period = 4096; + } + return sample_period; +} + static int arm_spe_recording_options(struct auxtrace_record *itr, struct evlist *evlist, struct record_opts *opts) @@ -136,7 +155,7 @@ static int arm_spe_recording_options(struct auxtrace_record *itr, return -EINVAL; } evsel->core.attr.freq = 0; - evsel->core.attr.sample_period = arm_spe_pmu->default_config->sample_period; + evsel->core.attr.sample_period = arm_spe_pmu__sample_period(arm_spe_pmu); evsel->needs_auxtrace_mmap = true; arm_spe_evsel = evsel; opts->full_auxtrace = true; @@ -495,29 +514,8 @@ struct auxtrace_record *arm_spe_recording_init(int *err, return &sper->itr; } -struct perf_event_attr -*arm_spe_pmu_default_config(struct perf_pmu *arm_spe_pmu) +void +arm_spe_pmu_default_config(const struct perf_pmu *arm_spe_pmu, struct perf_event_attr *attr) { - struct perf_event_attr *attr; - - attr = zalloc(sizeof(struct perf_event_attr)); - if (!attr) { - pr_err("arm_spe default config cannot allocate a perf_event_attr\n"); - return NULL; - } - - /* - * If kernel driver doesn't advertise a minimum, - * use max allowable by PMSIDR_EL1.INTERVAL - */ - if (perf_pmu__scan_file(arm_spe_pmu, "caps/min_interval", "%llu", - &attr->sample_period) != 1) { - pr_debug("arm_spe driver doesn't advertise a min. interval. Using 4096\n"); - attr->sample_period = 4096; - } - - arm_spe_pmu->selectable = true; - arm_spe_pmu->is_uncore = false; - - return attr; + attr->sample_period = arm_spe_pmu__sample_period(arm_spe_pmu); } diff --git a/tools/perf/arch/arm64/util/pmu.c b/tools/perf/arch/arm64/util/pmu.c index 615084eb88..2a4eab2d16 100644 --- a/tools/perf/arch/arm64/util/pmu.c +++ b/tools/perf/arch/arm64/util/pmu.c @@ -10,20 +10,16 @@ const struct pmu_metrics_table *pmu_metrics_table__find(void) { - struct perf_pmu *pmu = pmu__find_core_pmu(); + struct perf_pmu *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(); + /* Metrics aren't currently supported on heterogeneous Arm systems */ + if (perf_pmus__num_core_pmus() > 1) + return NULL; + /* Doesn't matter which one here because they'll all be the same */ + pmu = perf_pmus__find_core_pmu(); if (pmu) - return perf_pmu__find_events_table(pmu); + return perf_pmu__find_metrics_table(pmu); return NULL; } @@ -32,7 +28,7 @@ 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(); + struct perf_pmu *pmu = perf_pmus__find_core_pmu(); if (pmu) { perf_pmu__pathname_scnprintf(path, sizeof(path), |