diff options
Diffstat (limited to 'tools/perf/util/env.c')
| -rw-r--r-- | tools/perf/util/env.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c index 1edbccfc3281..e2843ca2edd9 100644 --- a/tools/perf/util/env.c +++ b/tools/perf/util/env.c @@ -5,12 +5,14 @@ #include "util/header.h" #include "linux/compiler.h" #include <linux/ctype.h> +#include <linux/string.h> #include <linux/zalloc.h> #include "cgroup.h" #include <errno.h> #include <sys/utsname.h> #include <stdlib.h> #include <string.h> +#include "pmu.h" #include "pmus.h" #include "strbuf.h" #include "trace/beauty/beauty.h" @@ -372,7 +374,8 @@ error: int perf_env__read_cpuid(struct perf_env *env) { char cpuid[128]; - int err = get_cpuid(cpuid, sizeof(cpuid)); + struct perf_cpu cpu = {-1}; + int err = get_cpuid(cpuid, sizeof(cpuid), cpu); if (err) return err; @@ -639,3 +642,25 @@ void perf_env__find_br_cntr_info(struct perf_env *env, env->pmu_caps->br_cntr_width; } } + +bool perf_env__is_x86_amd_cpu(struct perf_env *env) +{ + static int is_amd; /* 0: Uninitialized, 1: Yes, -1: No */ + + if (is_amd == 0) + is_amd = env->cpuid && strstarts(env->cpuid, "AuthenticAMD") ? 1 : -1; + + return is_amd >= 1 ? true : false; +} + +bool x86__is_amd_cpu(void) +{ + struct perf_env env = { .total_mem = 0, }; + bool is_amd; + + perf_env__cpuid(&env); + is_amd = perf_env__is_x86_amd_cpu(&env); + perf_env__exit(&env); + + return is_amd; +} |