1 // SPDX-License-Identifier: GPL-2.0
2 #include "linux/string.h"
3 #include "util/env.h"
4 #include "env.h"
5
6 bool x86__is_amd_cpu(void)
7 {
8 struct perf_env env = { .total_mem = 0, };
9 static int is_amd; /* 0: Uninitialized, 1: Yes, -1: No */
10
11 if (is_amd)
12 goto ret;
13
14 perf_env__cpuid(&env);
15 is_amd = env.cpuid && strstarts(env.cpuid, "AuthenticAMD") ? 1 : -1;
16 perf_env__exit(&env);
17 ret:
18 return is_amd >= 1 ? true : false;
19 }
20
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