// 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;
}