diff options
Diffstat (limited to 'lib/igt_perf.c')
| -rw-r--r-- | lib/igt_perf.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/igt_perf.c b/lib/igt_perf.c index 0221461e..99d82ea5 100644 --- a/lib/igt_perf.c +++ b/lib/igt_perf.c @@ -4,6 +4,7 @@ #include <stdlib.h> #include <string.h> #include <errno.h> +#include <sys/sysinfo.h> #include "igt_perf.h" @@ -31,6 +32,8 @@ static int _perf_open(uint64_t type, uint64_t config, int group, uint64_t format) { struct perf_event_attr attr = { }; + int nr_cpus = get_nprocs_conf(); + int cpu = 0, ret; attr.type = type; if (attr.type == 0) @@ -42,7 +45,11 @@ _perf_open(uint64_t type, uint64_t config, int group, uint64_t format) attr.read_format = format; attr.config = config; - return perf_event_open(&attr, -1, 0, group, 0); + do { + ret = perf_event_open(&attr, -1, cpu++, group, 0); + } while ((ret < 0 && errno == EINVAL) && (cpu < nr_cpus)); + + return ret; } int perf_i915_open(uint64_t config) |