diff options
Diffstat (limited to 'src/include/cpu/amd/cpuid.h')
| -rw-r--r-- | src/include/cpu/amd/cpuid.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/include/cpu/amd/cpuid.h b/src/include/cpu/amd/cpuid.h new file mode 100644 index 0000000000..81f69a3249 --- /dev/null +++ b/src/include/cpu/amd/cpuid.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* This file applies to AMD64 products. + * The definitions come from the AMD64 Programmers Manual vol2 + * Revision 3.30 and/or the device's BKDG. + */ + +#ifndef CPU_AMD_CPUID_H +#define CPU_AMD_CPUID_H + +#define CPUID_EXT_PM 0x80000007 +#define CPUID_MODEL 1 +#define CPUID_EBX_CORE_ID 0x8000001E +#define CPUID_EBX_THREADS_SHIFT 8 +#define CPUID_EBX_THREADS_MASK (0xFF << CPUID_EBX_THREADS_SHIFT) + +#endif /* CPU_AMD_CPUID_H */ |