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/*===---- cpuid.h - X86 cpu model detection --------------------------------===
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*===-----------------------------------------------------------------------===
*/
#if !(__x86_64__ || __i386__)
#error this header is for x86 only
#endif
/* Features in %ecx for level 1 */
#define bit_SSE3 0x00000001
#define bit_PCLMULQDQ 0x00000002
#define bit_DTES64 0x00000004
#define bit_MONITOR 0x00000008
#define bit_DSCPL 0x00000010
#define bit_VMX 0x00000020
#define bit_SMX 0x00000040
#define bit_EIST 0x00000080
#define bit_TM2 0x00000100
#define bit_SSSE3 0x00000200
#define bit_CNXTID 0x00000400
#define bit_FMA 0x00001000
#define bit_CMPXCHG16B 0x00002000
#define bit_xTPR 0x00004000
#define bit_PDCM 0x00008000
#define bit_PCID 0x00020000
#define bit_DCA 0x00040000
#define bit_SSE41 0x00080000
#define bit_SSE42 0x00100000
#define bit_x2APIC 0x00200000
#define bit_MOVBE 0x00400000
#define bit_POPCNT 0x00800000
#define bit_TSCDeadline 0x01000000
#define bit_AESNI 0x02000000
#define bit_XSAVE 0x04000000
#define bit_OSXSAVE 0x08000000
#define bit_AVX 0x10000000
#define bit_RDRAND 0x40000000
/* Features in %edx for level 1 */
#define bit_FPU 0x00000001
#define bit_VME 0x00000002
#define bit_DE 0x00000004
#define bit_PSE 0x00000008
#define bit_TSC 0x00000010
#define bit_MSR 0x00000020
#define bit_PAE 0x00000040
#define bit_MCE 0x00000080
#define bit_CX8 0x00000100
#define bit_APIC 0x00000200
#define bit_SEP 0x00000800
#define bit_MTRR 0x00001000
#define bit_PGE 0x00002000
#define bit_MCA 0x00004000
#define bit_CMOV 0x00008000
#define bit_PAT 0x00010000
#define bit_PSE36 0x00020000
#define bit_PSN 0x00040000
#define bit_CLFSH 0x00080000
#define bit_DS 0x00200000
#define bit_ACPI 0x00400000
#define bit_MMX 0x00800000
#define bit_FXSR 0x01000000
#define bit_FXSAVE bit_FXSR /* for gcc compat */
#define bit_SSE 0x02000000
#define bit_SSE2 0x04000000
#define bit_SS 0x08000000
#define bit_HTT 0x10000000
#define bit_TM 0x20000000
#define bit_PBE 0x80000000
/* Features in %ebx for level 7 sub-leaf 0 */
#define bit_FSGSBASE 0x00000001
#define bit_SMEP 0x00000080
#define bit_ENH_MOVSB 0x00000200
/* PIC on i386 uses %ebx, so preserve it. */
#if __i386__
#define __cpuid(__level, __eax, __ebx, __ecx, __edx) \
__asm(" pushl %%ebx\n" \
" cpuid\n" \
" mov %%ebx,%1\n" \
" popl %%ebx" \
: "=a"(__eax), "=r" (__ebx), "=c"(__ecx), "=d"(__edx) \
: "0"(__level))
#define __cpuid_count(__level, __count, __eax, __ebx, __ecx, __edx) \
__asm(" pushl %%ebx\n" \
" cpuid\n" \
" mov %%ebx,%1\n" \
" popl %%ebx" \
: "=a"(__eax), "=r" (__ebx), "=c"(__ecx), "=d"(__edx) \
: "0"(__level), "2"(__count))
#else
#define __cpuid(__level, __eax, __ebx, __ecx, __edx) \
__asm("cpuid" : "=a"(__eax), "=b" (__ebx), "=c"(__ecx), "=d"(__edx) \
: "0"(__level))
#define __cpuid_count(__level, __count, __eax, __ebx, __ecx, __edx) \
__asm("cpuid" : "=a"(__eax), "=b" (__ebx), "=c"(__ecx), "=d"(__edx) \
: "0"(__level), "2"(__count))
#endif
static __inline int __get_cpuid (unsigned int __level, unsigned int *__eax,
unsigned int *__ebx, unsigned int *__ecx,
unsigned int *__edx) {
__cpuid(__level, *__eax, *__ebx, *__ecx, *__edx);
return 1;
}
static __inline int __get_cpuid_max (unsigned int __level, unsigned int *__sig)
{
unsigned int __eax, __ebx, __ecx, __edx;
#if __i386__
int __cpuid_supported;
__asm(" pushfl\n"
" popl %%eax\n"
" movl %%eax,%%ecx\n"
" xorl $0x00200000,%%eax\n"
" pushl %%eax\n"
" popfl\n"
" pushfl\n"
" popl %%eax\n"
" movl $0,%0\n"
" cmpl %%eax,%%ecx\n"
" je 1f\n"
" movl $1,%0\n"
"1:"
: "=r" (__cpuid_supported) : : "eax", "ecx");
if (!__cpuid_supported)
return 0;
#endif
__cpuid(__level, __eax, __ebx, __ecx, __edx);
if (__sig)
*__sig = __ebx;
return __eax;
}
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