diff options
Diffstat (limited to 'sys/i386/include/specialreg.h')
| -rw-r--r-- | sys/i386/include/specialreg.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/sys/i386/include/specialreg.h b/sys/i386/include/specialreg.h index ec9de9f..3c9ca92 100644 --- a/sys/i386/include/specialreg.h +++ b/sys/i386/include/specialreg.h @@ -150,6 +150,23 @@ #define AMDID2_PREFETCH 0x00000100 /* + * CPUID instruction 1 eax info + */ +#define CPUID_STEPPING 0x0000000f +#define CPUID_MODEL 0x000000f0 +#define CPUID_FAMILY 0x00000f00 +#define CPUID_EXT_MODEL 0x000f0000 +#define CPUID_EXT_FAMILY 0x0ff00000 +#define I386_CPU_MODEL(id) \ + ((((id) & CPUID_MODEL) >> 4) | \ + ((((id) & CPUID_FAMILY) >= 0x600) ? \ + (((id) & CPUID_EXT_MODEL) >> 12) : 0)) +#define I386_CPU_FAMILY(id) \ + ((((id) & CPUID_FAMILY) >> 8) + \ + ((((id) & CPUID_FAMILY) == 0xf00) ? \ + (((id) & CPUID_EXT_FAMILY) >> 20) : 0)) + +/* * CPUID instruction 1 ebx info */ #define CPUID_BRAND_INDEX 0x000000ff |
