arm64/util/mem-events.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 #include "map_symbol.h"
0003 #include "mem-events.h"
0004
0005 #define E(t, n, s) { .tag = t, .name = n, .sysfs_name = s }
0006
0007 static struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX] = {
0008     E("spe-load",   "arm_spe_0/ts_enable=1,pa_enable=1,load_filter=1,store_filter=0,min_latency=%u/",   "arm_spe_0"),
0009     E("spe-store",  "arm_spe_0/ts_enable=1,pa_enable=1,load_filter=0,store_filter=1/",          "arm_spe_0"),
0010     E("spe-ldst",   "arm_spe_0/ts_enable=1,pa_enable=1,load_filter=1,store_filter=1,min_latency=%u/",   "arm_spe_0"),
0011 };
0012
0013 static char mem_ev_name[100];
0014
0015 struct perf_mem_event *perf_mem_events__ptr(int i)
0016 {
0017     if (i >= PERF_MEM_EVENTS__MAX)
0018         return NULL;
0019
0020     return &perf_mem_events[i];
0021 }
0022
0023 char *perf_mem_events__name(int i, char *pmu_name __maybe_unused)
0024 {
0025     struct perf_mem_event *e = perf_mem_events__ptr(i);
0026
0027     if (i >= PERF_MEM_EVENTS__MAX)
0028         return NULL;
0029
0030     if (i == PERF_MEM_EVENTS__LOAD || i == PERF_MEM_EVENTS__LOAD_STORE)
0031         scnprintf(mem_ev_name, sizeof(mem_ev_name),
0032               e->name, perf_mem_events__loads_ldlat);
0033     else /* PERF_MEM_EVENTS__STORE */
0034         scnprintf(mem_ev_name, sizeof(mem_ev_name), e->name);
0035
0036     return mem_ev_name;
0037 }