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There are multiple places where x86 specific code determines AMD vs Intel arch and acts based on that. Consolidate those checks into a single function. Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Ali Saidi <alisaidi@amazon.com> Cc: Ananth Narayan <ananth.narayan@amd.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Santosh Shukla <santosh.shukla@amd.com> Link: https://lore.kernel.org/r/20230613095506.547-3-ravi.bangoria@amd.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
20 lines
399 B
C
20 lines
399 B
C
// SPDX-License-Identifier: GPL-2.0
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#include "linux/string.h"
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#include "util/env.h"
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#include "env.h"
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bool x86__is_amd_cpu(void)
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{
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struct perf_env env = { .total_mem = 0, };
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static int is_amd; /* 0: Uninitialized, 1: Yes, -1: No */
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if (is_amd)
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goto ret;
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perf_env__cpuid(&env);
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is_amd = env.cpuid && strstarts(env.cpuid, "AuthenticAMD") ? 1 : -1;
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ret:
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return is_amd >= 1 ? true : false;
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}
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