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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/pmu-events/empty-pmu-events.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/pmu-events/empty-pmu-events.c')
-rw-r--r--tools/perf/pmu-events/empty-pmu-events.c462
1 files changed, 462 insertions, 0 deletions
diff --git a/tools/perf/pmu-events/empty-pmu-events.c b/tools/perf/pmu-events/empty-pmu-events.c
new file mode 100644
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+++ b/tools/perf/pmu-events/empty-pmu-events.c
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+// SPDX-License-Identifier: GPL-2.0
+/*
+ * An empty pmu-events.c file used when there is no architecture json files in
+ * arch or when the jevents.py script cannot be run.
+ *
+ * The test cpu/soc is provided for testing.
+ */
+#include "pmu-events/pmu-events.h"
+#include "util/header.h"
+#include "util/pmu.h"
+#include <string.h>
+#include <stddef.h>
+
+static const struct pmu_event pmu_events__test_soc_cpu[] = {
+ {
+ .name = "l3_cache_rd",
+ .event = "event=0x40",
+ .desc = "L3 cache access, read",
+ .topic = "cache",
+ .long_desc = "Attributable Level 3 cache access, read",
+ },
+ {
+ .name = "segment_reg_loads.any",
+ .event = "event=0x6,period=200000,umask=0x80",
+ .desc = "Number of segment register loads",
+ .topic = "other",
+ },
+ {
+ .name = "dispatch_blocked.any",
+ .event = "event=0x9,period=200000,umask=0x20",
+ .desc = "Memory cluster signals to block micro-op dispatch for any reason",
+ .topic = "other",
+ },
+ {
+ .name = "eist_trans",
+ .event = "event=0x3a,period=200000,umask=0x0",
+ .desc = "Number of Enhanced Intel SpeedStep(R) Technology (EIST) transitions",
+ .topic = "other",
+ },
+ {
+ .name = "uncore_hisi_ddrc.flux_wcmd",
+ .event = "event=0x2",
+ .desc = "DDRC write commands. Unit: hisi_sccl,ddrc ",
+ .topic = "uncore",
+ .long_desc = "DDRC write commands",
+ .pmu = "hisi_sccl,ddrc",
+ },
+ {
+ .name = "unc_cbo_xsnp_response.miss_eviction",
+ .event = "event=0x22,umask=0x81",
+ .desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core. Unit: uncore_cbox ",
+ .topic = "uncore",
+ .long_desc = "A cross-core snoop resulted from L3 Eviction which misses in some processor core",
+ .pmu = "uncore_cbox",
+ },
+ {
+ .name = "event-hyphen",
+ .event = "event=0xe0,umask=0x00",
+ .desc = "UNC_CBO_HYPHEN. Unit: uncore_cbox ",
+ .topic = "uncore",
+ .long_desc = "UNC_CBO_HYPHEN",
+ .pmu = "uncore_cbox",
+ },
+ {
+ .name = "event-two-hyph",
+ .event = "event=0xc0,umask=0x00",
+ .desc = "UNC_CBO_TWO_HYPH. Unit: uncore_cbox ",
+ .topic = "uncore",
+ .long_desc = "UNC_CBO_TWO_HYPH",
+ .pmu = "uncore_cbox",
+ },
+ {
+ .name = "uncore_hisi_l3c.rd_hit_cpipe",
+ .event = "event=0x7",
+ .desc = "Total read hits. Unit: hisi_sccl,l3c ",
+ .topic = "uncore",
+ .long_desc = "Total read hits",
+ .pmu = "hisi_sccl,l3c",
+ },
+ {
+ .name = "uncore_imc_free_running.cache_miss",
+ .event = "event=0x12",
+ .desc = "Total cache misses. Unit: uncore_imc_free_running ",
+ .topic = "uncore",
+ .long_desc = "Total cache misses",
+ .pmu = "uncore_imc_free_running",
+ },
+ {
+ .name = "uncore_imc.cache_hits",
+ .event = "event=0x34",
+ .desc = "Total cache hits. Unit: uncore_imc ",
+ .topic = "uncore",
+ .long_desc = "Total cache hits",
+ .pmu = "uncore_imc",
+ },
+ {
+ .name = "bp_l1_btb_correct",
+ .event = "event=0x8a",
+ .desc = "L1 BTB Correction",
+ .topic = "branch",
+ },
+ {
+ .name = "bp_l2_btb_correct",
+ .event = "event=0x8b",
+ .desc = "L2 BTB Correction",
+ .topic = "branch",
+ },
+ {
+ .name = 0,
+ .event = 0,
+ .desc = 0,
+ },
+};
+
+static const struct pmu_metric pmu_metrics__test_soc_cpu[] = {
+ {
+ .metric_expr = "1 / IPC",
+ .metric_name = "CPI",
+ },
+ {
+ .metric_expr = "inst_retired.any / cpu_clk_unhalted.thread",
+ .metric_name = "IPC",
+ .metric_group = "group1",
+ },
+ {
+ .metric_expr = "idq_uops_not_delivered.core / (4 * (( ( cpu_clk_unhalted.thread / 2 ) * "
+ "( 1 + cpu_clk_unhalted.one_thread_active / cpu_clk_unhalted.ref_xclk ) )))",
+ .metric_name = "Frontend_Bound_SMT",
+ },
+ {
+ .metric_expr = "l1d\\-loads\\-misses / inst_retired.any",
+ .metric_name = "dcache_miss_cpi",
+ },
+ {
+ .metric_expr = "l1i\\-loads\\-misses / inst_retired.any",
+ .metric_name = "icache_miss_cycles",
+ },
+ {
+ .metric_expr = "(dcache_miss_cpi + icache_miss_cycles)",
+ .metric_name = "cache_miss_cycles",
+ .metric_group = "group1",
+ },
+ {
+ .metric_expr = "l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hit",
+ .metric_name = "DCache_L2_All_Hits",
+ },
+ {
+ .metric_expr = "max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) + "
+ "l2_rqsts.pf_miss + l2_rqsts.rfo_miss",
+ .metric_name = "DCache_L2_All_Miss",
+ },
+ {
+ .metric_expr = "DCache_L2_All_Hits + DCache_L2_All_Miss",
+ .metric_name = "DCache_L2_All",
+ },
+ {
+ .metric_expr = "d_ratio(DCache_L2_All_Hits, DCache_L2_All)",
+ .metric_name = "DCache_L2_Hits",
+ },
+ {
+ .metric_expr = "d_ratio(DCache_L2_All_Miss, DCache_L2_All)",
+ .metric_name = "DCache_L2_Misses",
+ },
+ {
+ .metric_expr = "ipc + M2",
+ .metric_name = "M1",
+ },
+ {
+ .metric_expr = "ipc + M1",
+ .metric_name = "M2",
+ },
+ {
+ .metric_expr = "1/M3",
+ .metric_name = "M3",
+ },
+ {
+ .metric_expr = "64 * l1d.replacement / 1000000000 / duration_time",
+ .metric_name = "L1D_Cache_Fill_BW",
+ },
+ {
+ .metric_expr = 0,
+ .metric_name = 0,
+ },
+};
+
+/* Struct used to make the PMU event table implementation opaque to callers. */
+struct pmu_events_table {
+ const struct pmu_event *entries;
+};
+
+/* Struct used to make the PMU metric table implementation opaque to callers. */
+struct pmu_metrics_table {
+ const struct pmu_metric *entries;
+};
+
+/*
+ * Map a CPU to its table of PMU events. The CPU is identified by the
+ * cpuid field, which is an arch-specific identifier for the CPU.
+ * The identifier specified in tools/perf/pmu-events/arch/xxx/mapfile
+ * must match the get_cpuid_str() in tools/perf/arch/xxx/util/header.c)
+ *
+ * The cpuid can contain any character other than the comma.
+ */
+struct pmu_events_map {
+ const char *arch;
+ const char *cpuid;
+ const struct pmu_events_table event_table;
+ const struct pmu_metrics_table metric_table;
+};
+
+/*
+ * Global table mapping each known CPU for the architecture to its
+ * table of PMU events.
+ */
+static const struct pmu_events_map pmu_events_map[] = {
+ {
+ .arch = "testarch",
+ .cpuid = "testcpu",
+ .event_table = { pmu_events__test_soc_cpu },
+ .metric_table = { pmu_metrics__test_soc_cpu },
+ },
+ {
+ .arch = 0,
+ .cpuid = 0,
+ .event_table = { 0 },
+ .metric_table = { 0 },
+ },
+};
+
+static const struct pmu_event pmu_events__test_soc_sys[] = {
+ {
+ .name = "sys_ddr_pmu.write_cycles",
+ .event = "event=0x2b",
+ .desc = "ddr write-cycles event. Unit: uncore_sys_ddr_pmu ",
+ .compat = "v8",
+ .topic = "uncore",
+ .pmu = "uncore_sys_ddr_pmu",
+ },
+ {
+ .name = "sys_ccn_pmu.read_cycles",
+ .event = "config=0x2c",
+ .desc = "ccn read-cycles event. Unit: uncore_sys_ccn_pmu ",
+ .compat = "0x01",
+ .topic = "uncore",
+ .pmu = "uncore_sys_ccn_pmu",
+ },
+ {
+ .name = 0,
+ .event = 0,
+ .desc = 0,
+ },
+};
+
+struct pmu_sys_events {
+ const char *name;
+ const struct pmu_events_table table;
+};
+
+static const struct pmu_sys_events pmu_sys_event_tables[] = {
+ {
+ .table = { pmu_events__test_soc_sys },
+ .name = "pmu_events__test_soc_sys",
+ },
+ {
+ .table = { 0 }
+ },
+};
+
+int pmu_events_table__for_each_event(const struct pmu_events_table *table, struct perf_pmu *pmu,
+ pmu_event_iter_fn fn, void *data)
+{
+ for (const struct pmu_event *pe = &table->entries[0]; pe->name; pe++) {
+ int ret;
+
+ if (pmu && !pmu__name_match(pmu, pe->pmu))
+ continue;
+
+ ret = fn(pe, table, data);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+int pmu_events_table__find_event(const struct pmu_events_table *table,
+ struct perf_pmu *pmu,
+ const char *name,
+ pmu_event_iter_fn fn,
+ void *data)
+{
+ for (const struct pmu_event *pe = &table->entries[0]; pe->name; pe++) {
+ if (pmu && !pmu__name_match(pmu, pe->pmu))
+ continue;
+
+ if (!strcasecmp(pe->name, name))
+ return fn(pe, table, data);
+ }
+ return -1000;
+}
+
+size_t pmu_events_table__num_events(const struct pmu_events_table *table,
+ struct perf_pmu *pmu)
+{
+ size_t count = 0;
+
+ for (const struct pmu_event *pe = &table->entries[0]; pe->name; pe++) {
+ if (pmu && !pmu__name_match(pmu, pe->pmu))
+ continue;
+
+ count++;
+ }
+ return count;
+}
+
+int pmu_metrics_table__for_each_metric(const struct pmu_metrics_table *table, pmu_metric_iter_fn fn,
+ void *data)
+{
+ for (const struct pmu_metric *pm = &table->entries[0]; pm->metric_expr; pm++) {
+ int ret = fn(pm, table, data);
+
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+const struct pmu_events_table *perf_pmu__find_events_table(struct perf_pmu *pmu)
+{
+ const struct pmu_events_table *table = NULL;
+ char *cpuid = perf_pmu__getcpuid(pmu);
+ int i;
+
+ /* on some platforms which uses cpus map, cpuid can be NULL for
+ * PMUs other than CORE PMUs.
+ */
+ if (!cpuid)
+ return NULL;
+
+ i = 0;
+ for (;;) {
+ const struct pmu_events_map *map = &pmu_events_map[i++];
+
+ if (!map->cpuid)
+ break;
+
+ if (!strcmp_cpuid_str(map->cpuid, cpuid)) {
+ table = &map->event_table;
+ break;
+ }
+ }
+ free(cpuid);
+ return table;
+}
+
+const struct pmu_metrics_table *perf_pmu__find_metrics_table(struct perf_pmu *pmu)
+{
+ const struct pmu_metrics_table *table = NULL;
+ char *cpuid = perf_pmu__getcpuid(pmu);
+ int i;
+
+ /* on some platforms which uses cpus map, cpuid can be NULL for
+ * PMUs other than CORE PMUs.
+ */
+ if (!cpuid)
+ return NULL;
+
+ i = 0;
+ for (;;) {
+ const struct pmu_events_map *map = &pmu_events_map[i++];
+
+ if (!map->cpuid)
+ break;
+
+ if (!strcmp_cpuid_str(map->cpuid, cpuid)) {
+ table = &map->metric_table;
+ break;
+ }
+ }
+ free(cpuid);
+ return table;
+}
+
+const struct pmu_events_table *find_core_events_table(const char *arch, const char *cpuid)
+{
+ for (const struct pmu_events_map *tables = &pmu_events_map[0];
+ tables->arch;
+ tables++) {
+ if (!strcmp(tables->arch, arch) && !strcmp_cpuid_str(tables->cpuid, cpuid))
+ return &tables->event_table;
+ }
+ return NULL;
+}
+
+const struct pmu_metrics_table *find_core_metrics_table(const char *arch, const char *cpuid)
+{
+ for (const struct pmu_events_map *tables = &pmu_events_map[0];
+ tables->arch;
+ tables++) {
+ if (!strcmp(tables->arch, arch) && !strcmp_cpuid_str(tables->cpuid, cpuid))
+ return &tables->metric_table;
+ }
+ return NULL;
+}
+
+int pmu_for_each_core_event(pmu_event_iter_fn fn, void *data)
+{
+ for (const struct pmu_events_map *tables = &pmu_events_map[0]; tables->arch; tables++) {
+ int ret = pmu_events_table__for_each_event(&tables->event_table,
+ /*pmu=*/ NULL, fn, data);
+
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+int pmu_for_each_core_metric(pmu_metric_iter_fn fn, void *data)
+{
+ for (const struct pmu_events_map *tables = &pmu_events_map[0];
+ tables->arch;
+ tables++) {
+ int ret = pmu_metrics_table__for_each_metric(&tables->metric_table, fn, data);
+
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+const struct pmu_events_table *find_sys_events_table(const char *name)
+{
+ for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
+ tables->name;
+ tables++) {
+ if (!strcmp(tables->name, name))
+ return &tables->table;
+ }
+ return NULL;
+}
+
+int pmu_for_each_sys_event(pmu_event_iter_fn fn, void *data)
+{
+ for (const struct pmu_sys_events *tables = &pmu_sys_event_tables[0];
+ tables->name;
+ tables++) {
+ int ret = pmu_events_table__for_each_event(&tables->table, /*pmu=*/ NULL, fn, data);
+
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+int pmu_for_each_sys_metric(pmu_metric_iter_fn fn __maybe_unused, void *data __maybe_unused)
+{
+ return 0;
+}
+
+const char *describe_metricgroup(const char *group __maybe_unused)
+{
+ return NULL;
+}