cpuid.h File Reference

Go to the source code of this file.

Macros
#define	bit_SSE3   (1 << 0)
#define	bit_PCLMUL   (1 << 1)
#define	bit_LZCNT   (1 << 5)
#define	bit_SSSE3   (1 << 9)
#define	bit_FMA   (1 << 12)
#define	bit_CMPXCHG16B   (1 << 13)
#define	bit_SSE4_1   (1 << 19)
#define	bit_SSE4_2   (1 << 20)
#define	bit_MOVBE   (1 << 22)
#define	bit_POPCNT   (1 << 23)
#define	bit_AES   (1 << 25)
#define	bit_XSAVE   (1 << 26)
#define	bit_OSXSAVE   (1 << 27)
#define	bit_AVX   (1 << 28)
#define	bit_F16C   (1 << 29)
#define	bit_RDRND   (1 << 30)
#define	bit_CMPXCHG8B   (1 << 8)
#define	bit_CMOV   (1 << 15)
#define	bit_MMX   (1 << 23)
#define	bit_FXSAVE   (1 << 24)
#define	bit_SSE   (1 << 25)
#define	bit_SSE2   (1 << 26)
#define	bit_LAHF_LM   (1 << 0)
#define	bit_ABM   (1 << 5)
#define	bit_SSE4a   (1 << 6)
#define	bit_PRFCHW   (1 << 8)
#define	bit_XOP   (1 << 11)
#define	bit_LWP   (1 << 15)
#define	bit_FMA4   (1 << 16)
#define	bit_TBM   (1 << 21)
#define	bit_MMXEXT   (1 << 22)
#define	bit_LM   (1 << 29)
#define	bit_3DNOWP   (1 << 30)
#define	bit_3DNOW   (1 << 31)
#define	bit_FSGSBASE   (1 << 0)
#define	bit_BMI   (1 << 3)
#define	bit_HLE   (1 << 4)
#define	bit_AVX2   (1 << 5)
#define	bit_BMI2   (1 << 8)
#define	bit_RTM   (1 << 11)
#define	bit_RDSEED   (1 << 18)
#define	bit_ADX   (1 << 19)
#define	bit_XSAVEOPT   (1 << 0)
#define	signature_AMD_ebx   0x68747541
#define	signature_AMD_ecx   0x444d4163
#define	signature_AMD_edx   0x69746e65
#define	signature_CENTAUR_ebx   0x746e6543
#define	signature_CENTAUR_ecx   0x736c7561
#define	signature_CENTAUR_edx   0x48727561
#define	signature_CYRIX_ebx   0x69727943
#define	signature_CYRIX_ecx   0x64616574
#define	signature_CYRIX_edx   0x736e4978
#define	signature_INTEL_ebx   0x756e6547
#define	signature_INTEL_ecx   0x6c65746e
#define	signature_INTEL_edx   0x49656e69
#define	signature_TM1_ebx   0x6e617254
#define	signature_TM1_ecx   0x55504361
#define	signature_TM1_edx   0x74656d73
#define	signature_TM2_ebx   0x756e6547
#define	signature_TM2_ecx   0x3638784d
#define	signature_TM2_edx   0x54656e69
#define	signature_NSC_ebx   0x646f6547
#define	signature_NSC_ecx   0x43534e20
#define	signature_NSC_edx   0x79622065
#define	signature_NEXGEN_ebx   0x4778654e
#define	signature_NEXGEN_ecx   0x6e657669
#define	signature_NEXGEN_edx   0x72446e65
#define	signature_RISE_ebx   0x65736952
#define	signature_RISE_ecx   0x65736952
#define	signature_RISE_edx   0x65736952
#define	signature_SIS_ebx   0x20536953
#define	signature_SIS_ecx   0x20536953
#define	signature_SIS_edx   0x20536953
#define	signature_UMC_ebx   0x20434d55
#define	signature_UMC_ecx   0x20434d55
#define	signature_UMC_edx   0x20434d55
#define	signature_VIA_ebx   0x20414956
#define	signature_VIA_ecx   0x20414956
#define	signature_VIA_edx   0x20414956
#define	signature_VORTEX_ebx   0x74726f56
#define	signature_VORTEX_ecx   0x436f5320
#define	signature_VORTEX_edx   0x36387865
#define	__cpuid(level, a, b, c, d)
#define	__cpuid_count(level, count, a, b, c, d)

Functions
static __inline unsigned int	__get_cpuid_max (unsigned int __ext, unsigned int *__sig)
static __inline int	__get_cpuid (unsigned int __level, unsigned int *__eax, unsigned int *__ebx, unsigned int *__ecx, unsigned int *__edx)

Macro Definition Documentation

#define __cpuid	(		level,
			a,
			b,
			c,
			d
	)

Value:

__asm__ ("cpuid\n\t"                    \
       : "=a" (a), "=b" (b), "=c" (c), "=d" (d) \
       : "0" (level))

#define __cpuid_count	(		level,
			count,
			a,
			b,
			c,
			d
	)

Value:

__asm__ ("cpuid\n\t"                    \
       : "=a" (a), "=b" (b), "=c" (c), "=d" (d) \
       : "0" (level), "2" (count))

#define bit_3DNOW   (1 << 31)

#define bit_3DNOWP   (1 << 30)

#define bit_ABM   (1 << 5)

#define bit_ADX   (1 << 19)

#define bit_AES   (1 << 25)

#define bit_AVX   (1 << 28)

#define bit_AVX2   (1 << 5)

#define bit_BMI   (1 << 3)

#define bit_BMI2   (1 << 8)

#define bit_CMOV   (1 << 15)

#define bit_CMPXCHG16B   (1 << 13)

#define bit_CMPXCHG8B   (1 << 8)

#define bit_F16C   (1 << 29)

#define bit_FMA   (1 << 12)

#define bit_FMA4   (1 << 16)

#define bit_FSGSBASE   (1 << 0)

#define bit_FXSAVE   (1 << 24)

#define bit_HLE   (1 << 4)

#define bit_LAHF_LM   (1 << 0)

#define bit_LM   (1 << 29)

#define bit_LWP   (1 << 15)

#define bit_LZCNT   (1 << 5)

#define bit_MMX   (1 << 23)

#define bit_MMXEXT   (1 << 22)

#define bit_MOVBE   (1 << 22)

#define bit_OSXSAVE   (1 << 27)

#define bit_PCLMUL   (1 << 1)

#define bit_POPCNT   (1 << 23)

#define bit_PRFCHW   (1 << 8)

#define bit_RDRND   (1 << 30)

#define bit_RDSEED   (1 << 18)

#define bit_RTM   (1 << 11)

#define bit_SSE   (1 << 25)

#define bit_SSE2   (1 << 26)

#define bit_SSE3   (1 << 0)

#define bit_SSE4_1   (1 << 19)

#define bit_SSE4_2   (1 << 20)

#define bit_SSE4a   (1 << 6)

#define bit_SSSE3   (1 << 9)

#define bit_TBM   (1 << 21)

#define bit_XOP   (1 << 11)

#define bit_XSAVE   (1 << 26)

#define bit_XSAVEOPT   (1 << 0)

#define signature_AMD_ebx   0x68747541

#define signature_AMD_ecx   0x444d4163

#define signature_AMD_edx   0x69746e65

#define signature_CENTAUR_ebx   0x746e6543

#define signature_CENTAUR_ecx   0x736c7561

#define signature_CENTAUR_edx   0x48727561

#define signature_CYRIX_ebx   0x69727943

#define signature_CYRIX_ecx   0x64616574

#define signature_CYRIX_edx   0x736e4978

#define signature_INTEL_ebx   0x756e6547

#define signature_INTEL_ecx   0x6c65746e

#define signature_INTEL_edx   0x49656e69

#define signature_NEXGEN_ebx   0x4778654e

#define signature_NEXGEN_ecx   0x6e657669

#define signature_NEXGEN_edx   0x72446e65

#define signature_NSC_ebx   0x646f6547

#define signature_NSC_ecx   0x43534e20

#define signature_NSC_edx   0x79622065

#define signature_RISE_ebx   0x65736952

#define signature_RISE_ecx   0x65736952

#define signature_RISE_edx   0x65736952

#define signature_SIS_ebx   0x20536953

#define signature_SIS_ecx   0x20536953

#define signature_SIS_edx   0x20536953

#define signature_TM1_ebx   0x6e617254

#define signature_TM1_ecx   0x55504361

#define signature_TM1_edx   0x74656d73

#define signature_TM2_ebx   0x756e6547

#define signature_TM2_ecx   0x3638784d

#define signature_TM2_edx   0x54656e69

#define signature_UMC_ebx   0x20434d55

#define signature_UMC_ecx   0x20434d55

#define signature_UMC_edx   0x20434d55

#define signature_VIA_ebx   0x20414956

#define signature_VIA_ecx   0x20414956

#define signature_VIA_edx   0x20414956

#define signature_VORTEX_ebx   0x74726f56

#define signature_VORTEX_ecx   0x436f5320

#define signature_VORTEX_edx   0x36387865

Function Documentation

static __inline int __get_cpuid ( unsigned int  __level, unsigned int *  __eax, unsigned int *  __ebx, unsigned int *  __ecx, unsigned int *  __edx  )

static

{
  unsigned int __ext = __level & 0x80000000;

  if (__get_cpuid_max (__ext, 0) < __level)
    return 0;

  __cpuid (__level, *__eax, *__ebx, *__ecx, *__edx);
  return 1;
}

static __inline unsigned int __get_cpuid_max ( unsigned int  __ext, unsigned int *  __sig  )

static

{
  unsigned int __eax, __ebx, __ecx, __edx;

#ifndef __x86_64__
  /* See if we can use cpuid.  On AMD64 we always can.  */
#if __GNUC__ >= 3
  __asm__ ("pushf{l|d}\n\t"
       "pushf{l|d}\n\t"
       "pop{l}\t%0\n\t"
       "mov{l}\t{%0, %1|%1, %0}\n\t"
       "xor{l}\t{%2, %0|%0, %2}\n\t"
       "push{l}\t%0\n\t"
       "popf{l|d}\n\t"
       "pushf{l|d}\n\t"
       "pop{l}\t%0\n\t"
       "popf{l|d}\n\t"
       : "=&r" (__eax), "=&r" (__ebx)
       : "i" (0x00200000));
#else
/* Host GCCs older than 3.0 weren't supporting Intel asm syntax
   nor alternatives in i386 code.  */
  __asm__ ("pushfl\n\t"
       "pushfl\n\t"
       "popl\t%0\n\t"
       "movl\t%0, %1\n\t"
       "xorl\t%2, %0\n\t"
       "pushl\t%0\n\t"
       "popfl\n\t"
       "pushfl\n\t"
       "popl\t%0\n\t"
       "popfl\n\t"
       : "=&r" (__eax), "=&r" (__ebx)
       : "i" (0x00200000));
#endif

  if (!((__eax ^ __ebx) & 0x00200000))
    return 0;
#endif

  /* Host supports cpuid.  Return highest supported cpuid input value.  */
  __cpuid (__ext, __eax, __ebx, __ecx, __edx);

  if (__sig)
    *__sig = __ebx;

  return __eax;
}