mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 21:57:43 +00:00
d50a79cd0f
Remove some code that duplicates existing methods. Copy strings where const strings are required. No functional changes. Committer notes: Add a stub for erf_pmu__scan_file() in tools/perf/util/python.c not to drag tools/perf/util/pmu.c into the python binding. This fixes 'perf test python' at this point in this patchset. Reviewed-by: Leo Yan <leo.yan@linaro.org> Signed-off-by: James Clark <james.clark@arm.com> Acked-by: Suzuki Poulouse <suzuki.poulose@arm.com> Tested-by: Tanmay Jagdale <tanmay@marvell.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Bharat Bhushan <bbhushan2@marvell.com> Cc: George Cherian <gcherian@marvell.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Linu Cherian <lcherian@marvell.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sunil Kovvuri Goutham <sgoutham@marvell.com> Cc: Will Deacon <will@kernel.org> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230120143702.4035046-3-james.clark@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
72 lines
1.3 KiB
C
72 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/list.h>
|
|
#include <linux/compiler.h>
|
|
#include <linux/string.h>
|
|
#include <linux/zalloc.h>
|
|
#include <sys/types.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <stdio.h>
|
|
#include <stdbool.h>
|
|
#include <stdarg.h>
|
|
#include <locale.h>
|
|
#include <api/fs/fs.h>
|
|
#include "fncache.h"
|
|
#include "pmu-hybrid.h"
|
|
|
|
LIST_HEAD(perf_pmu__hybrid_pmus);
|
|
|
|
bool perf_pmu__hybrid_mounted(const char *name)
|
|
{
|
|
int cpu;
|
|
char pmu_name[PATH_MAX];
|
|
struct perf_pmu pmu = {.name = pmu_name};
|
|
|
|
if (strncmp(name, "cpu_", 4))
|
|
return false;
|
|
|
|
strlcpy(pmu_name, name, sizeof(pmu_name));
|
|
return perf_pmu__scan_file(&pmu, "cpus", "%u", &cpu) > 0;
|
|
}
|
|
|
|
struct perf_pmu *perf_pmu__find_hybrid_pmu(const char *name)
|
|
{
|
|
struct perf_pmu *pmu;
|
|
|
|
if (!name)
|
|
return NULL;
|
|
|
|
perf_pmu__for_each_hybrid_pmu(pmu) {
|
|
if (!strcmp(name, pmu->name))
|
|
return pmu;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
bool perf_pmu__is_hybrid(const char *name)
|
|
{
|
|
return perf_pmu__find_hybrid_pmu(name) != NULL;
|
|
}
|
|
|
|
char *perf_pmu__hybrid_type_to_pmu(const char *type)
|
|
{
|
|
char *pmu_name = NULL;
|
|
|
|
if (asprintf(&pmu_name, "cpu_%s", type) < 0)
|
|
return NULL;
|
|
|
|
if (perf_pmu__is_hybrid(pmu_name))
|
|
return pmu_name;
|
|
|
|
/*
|
|
* pmu may be not scanned, check the sysfs.
|
|
*/
|
|
if (perf_pmu__hybrid_mounted(pmu_name))
|
|
return pmu_name;
|
|
|
|
free(pmu_name);
|
|
return NULL;
|
|
}
|