tools/perf/arch/arm/util/pmu.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright(C) 2015 Linaro Limited. All rights reserved.
   4  * Author: Mathieu Poirier <[email protected]>
   5  */
   6
   7 #include <string.h>
   8 #include <linux/coresight-pmu.h>
   9 #include <linux/perf_event.h>
  10 #include <linux/string.h>
  11
  12 #include "arm-spe.h"
  13 #include "hisi-ptt.h"
  14 #include "../../../util/cpumap.h"
  15 #include "../../../util/pmu.h"
  16 #include "../../../util/cs-etm.h"
  17 #include "../../arm64/util/mem-events.h"
  18
  19 void perf_pmu__arch_init(struct perf_pmu *pmu)
  20 {
  21         struct perf_cpu_map *intersect;
  22
  23 #ifdef HAVE_AUXTRACE_SUPPORT
  24         if (!strcmp(pmu->name, CORESIGHT_ETM_PMU_NAME)) {
  25                 /* add ETM default config here */
  26                 pmu->auxtrace = true;
  27                 pmu->selectable = true;
  28                 pmu->perf_event_attr_init_default = cs_etm_get_default_config;
  29 #if defined(__aarch64__)
  30         } else if (strstarts(pmu->name, ARM_SPE_PMU_NAME)) {
  31                 pmu->auxtrace = true;
  32                 pmu->selectable = true;
  33                 pmu->is_uncore = false;
  34                 pmu->perf_event_attr_init_default = arm_spe_pmu_default_config;
  35                 if (strstarts(pmu->name, "arm_spe_"))
  36                         pmu->mem_events = perf_mem_events_arm;
  37         } else if (strstarts(pmu->name, HISI_PTT_PMU_NAME)) {
  38                 pmu->auxtrace = true;
  39                 pmu->selectable = true;
  40 #endif
  41         }
  42 #endif
  43         /* Workaround some ARM PMU's failing to correctly set CPU maps for online processors. */
  44         intersect = perf_cpu_map__intersect(cpu_map__online(), pmu->cpus);
  45         perf_cpu_map__put(pmu->cpus);
  46         pmu->cpus = intersect;
  47 }