Files
linux/tools/perf/util/tool_pmu.h
Ian Rogers bc105a8918 Revert "perf tool_pmu: More accurately set the cpus for tool events"
This reverts commit d8d8a0b360.

The setting of a user CPU map can cause an empty intersection when
combined with CPU 0 and the event removed. This later triggers a segv in
the stat-shadow logic. Let's put back a full online CPU map for now by
reverting this patch.

Closes: https://lore.kernel.org/linux-perf-users/cgja46br2smmznxs7kbeabs6zgv3b4olfqgh2fdp5mxk2yom4v@w6jjgov6hdi6/
Reported-by: Andres Freund <andres@anarazel.de>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-02-10 09:32:34 -03:00

64 lines
1.7 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __TOOL_PMU_H
#define __TOOL_PMU_H
#include "pmu.h"
struct evsel;
struct perf_thread_map;
struct print_callbacks;
enum tool_pmu_event {
TOOL_PMU__EVENT_NONE = 0,
TOOL_PMU__EVENT_DURATION_TIME,
TOOL_PMU__EVENT_USER_TIME,
TOOL_PMU__EVENT_SYSTEM_TIME,
TOOL_PMU__EVENT_HAS_PMEM,
TOOL_PMU__EVENT_NUM_CORES,
TOOL_PMU__EVENT_NUM_CPUS,
TOOL_PMU__EVENT_NUM_CPUS_ONLINE,
TOOL_PMU__EVENT_NUM_DIES,
TOOL_PMU__EVENT_NUM_PACKAGES,
TOOL_PMU__EVENT_SLOTS,
TOOL_PMU__EVENT_SMT_ON,
TOOL_PMU__EVENT_SYSTEM_TSC_FREQ,
TOOL_PMU__EVENT_CORE_WIDE,
TOOL_PMU__EVENT_TARGET_CPU,
TOOL_PMU__EVENT_MAX,
};
#define tool_pmu__for_each_event(ev) \
for ((ev) = TOOL_PMU__EVENT_DURATION_TIME; (ev) < TOOL_PMU__EVENT_MAX; ev++)
const char *tool_pmu__event_to_str(enum tool_pmu_event ev);
enum tool_pmu_event tool_pmu__str_to_event(const char *str);
bool tool_pmu__skip_event(const char *name);
int tool_pmu__num_skip_events(void);
bool tool_pmu__read_event(enum tool_pmu_event ev,
struct evsel *evsel,
bool system_wide,
const char *user_requested_cpu_list,
u64 *result);
u64 tool_pmu__cpu_slots_per_cycle(void);
bool perf_pmu__is_tool(const struct perf_pmu *pmu);
bool evsel__is_tool(const struct evsel *evsel);
enum tool_pmu_event evsel__tool_event(const struct evsel *evsel);
const char *evsel__tool_pmu_event_name(const struct evsel *evsel);
int evsel__tool_pmu_prepare_open(struct evsel *evsel,
struct perf_cpu_map *cpus,
int nthreads);
int evsel__tool_pmu_open(struct evsel *evsel,
struct perf_thread_map *threads,
int start_cpu_map_idx, int end_cpu_map_idx);
int evsel__tool_pmu_read(struct evsel *evsel, int cpu_map_idx, int thread);
struct perf_pmu *tool_pmu__new(void);
#endif /* __TOOL_PMU_H */