| /*===---- 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 |
| |
| /* Responses identification request with %eax 0 */ |
| /* AMD: "AuthenticAMD" */ |
| #define signature_AMD_ebx 0x68747541 |
| #define signature_AMD_edx 0x69746e65 |
| #define signature_AMD_ecx 0x444d4163 |
| /* CENTAUR: "CentaurHauls" */ |
| #define signature_CENTAUR_ebx 0x746e6543 |
| #define signature_CENTAUR_edx 0x48727561 |
| #define signature_CENTAUR_ecx 0x736c7561 |
| /* CYRIX: "CyrixInstead" */ |
| #define signature_CYRIX_ebx 0x69727943 |
| #define signature_CYRIX_edx 0x736e4978 |
| #define signature_CYRIX_ecx 0x64616574 |
| /* INTEL: "GenuineIntel" */ |
| #define signature_INTEL_ebx 0x756e6547 |
| #define signature_INTEL_edx 0x49656e69 |
| #define signature_INTEL_ecx 0x6c65746e |
| /* TM1: "TransmetaCPU" */ |
| #define signature_TM1_ebx 0x6e617254 |
| #define signature_TM1_edx 0x74656d73 |
| #define signature_TM1_ecx 0x55504361 |
| /* TM2: "GenuineTMx86" */ |
| #define signature_TM2_ebx 0x756e6547 |
| #define signature_TM2_edx 0x54656e69 |
| #define signature_TM2_ecx 0x3638784d |
| /* NSC: "Geode by NSC" */ |
| #define signature_NSC_ebx 0x646f6547 |
| #define signature_NSC_edx 0x43534e20 |
| #define signature_NSC_ecx 0x79622065 |
| /* NEXGEN: "NexGenDriven" */ |
| #define signature_NEXGEN_ebx 0x4778654e |
| #define signature_NEXGEN_edx 0x72446e65 |
| #define signature_NEXGEN_ecx 0x6e657669 |
| /* RISE: "RiseRiseRise" */ |
| #define signature_RISE_ebx 0x65736952 |
| #define signature_RISE_edx 0x65736952 |
| #define signature_RISE_ecx 0x65736952 |
| /* SIS: "SiS SiS SiS " */ |
| #define signature_SIS_ebx 0x20536953 |
| #define signature_SIS_edx 0x20536953 |
| #define signature_SIS_ecx 0x20536953 |
| /* UMC: "UMC UMC UMC " */ |
| #define signature_UMC_ebx 0x20434d55 |
| #define signature_UMC_edx 0x20434d55 |
| #define signature_UMC_ecx 0x20434d55 |
| /* VIA: "VIA VIA VIA " */ |
| #define signature_VIA_ebx 0x20414956 |
| #define signature_VIA_edx 0x20414956 |
| #define signature_VIA_ecx 0x20414956 |
| /* VORTEX: "Vortex86 SoC" */ |
| #define signature_VORTEX_ebx 0x74726f56 |
| #define signature_VORTEX_edx 0x36387865 |
| #define signature_VORTEX_ecx 0x436f5320 |
| |
| /* Features in %ecx for leaf 1 */ |
| #define bit_SSE3 0x00000001 |
| #define bit_PCLMULQDQ 0x00000002 |
| #define bit_PCLMUL bit_PCLMULQDQ /* for gcc compat */ |
| #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_SSE4_1 bit_SSE41 /* for gcc compat */ |
| #define bit_SSE42 0x00100000 |
| #define bit_SSE4_2 bit_SSE42 /* for gcc compat */ |
| #define bit_x2APIC 0x00200000 |
| #define bit_MOVBE 0x00400000 |
| #define bit_POPCNT 0x00800000 |
| #define bit_TSCDeadline 0x01000000 |
| #define bit_AESNI 0x02000000 |
| #define bit_AES bit_AESNI /* for gcc compat */ |
| #define bit_XSAVE 0x04000000 |
| #define bit_OSXSAVE 0x08000000 |
| #define bit_AVX 0x10000000 |
| #define bit_F16C 0x20000000 |
| #define bit_RDRND 0x40000000 |
| |
| /* Features in %edx for leaf 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_CMPXCHG8B bit_CX8 /* for gcc compat */ |
| #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 leaf 7 sub-leaf 0 */ |
| #define bit_FSGSBASE 0x00000001 |
| #define bit_SGX 0x00000004 |
| #define bit_BMI 0x00000008 |
| #define bit_HLE 0x00000010 |
| #define bit_AVX2 0x00000020 |
| #define bit_SMEP 0x00000080 |
| #define bit_BMI2 0x00000100 |
| #define bit_ENH_MOVSB 0x00000200 |
| #define bit_INVPCID 0x00000400 |
| #define bit_RTM 0x00000800 |
| #define bit_MPX 0x00004000 |
| #define bit_AVX512F 0x00010000 |
| #define bit_AVX512DQ 0x00020000 |
| #define bit_RDSEED 0x00040000 |
| #define bit_ADX 0x00080000 |
| #define bit_AVX512IFMA 0x00200000 |
| #define bit_CLFLUSHOPT 0x00800000 |
| #define bit_CLWB 0x01000000 |
| #define bit_AVX512PF 0x04000000 |
| #define bit_AVX512ER 0x08000000 |
| #define bit_AVX512CD 0x10000000 |
| #define bit_SHA 0x20000000 |
| #define bit_AVX512BW 0x40000000 |
| #define bit_AVX512VL 0x80000000 |
| |
| /* Features in %ecx for leaf 7 sub-leaf 0 */ |
| #define bit_PREFTCHWT1 0x00000001 |
| #define bit_AVX512VBMI 0x00000002 |
| #define bit_PKU 0x00000004 |
| #define bit_OSPKE 0x00000010 |
| #define bit_WAITPKG 0x00000020 |
| #define bit_AVX512VBMI2 0x00000040 |
| #define bit_SHSTK 0x00000080 |
| #define bit_GFNI 0x00000100 |
| #define bit_VAES 0x00000200 |
| #define bit_VPCLMULQDQ 0x00000400 |
| #define bit_AVX512VNNI 0x00000800 |
| #define bit_AVX512BITALG 0x00001000 |
| #define bit_AVX512VPOPCNTDQ 0x00004000 |
| #define bit_RDPID 0x00400000 |
| #define bit_CLDEMOTE 0x02000000 |
| #define bit_MOVDIRI 0x08000000 |
| #define bit_MOVDIR64B 0x10000000 |
| |
| /* Features in %edx for leaf 7 sub-leaf 0 */ |
| #define bit_AVX5124VNNIW 0x00000004 |
| #define bit_AVX5124FMAPS 0x00000008 |
| #define bit_PCONFIG 0x00040000 |
| #define bit_IBT 0x00100000 |
| |
| /* Features in %eax for leaf 13 sub-leaf 1 */ |
| #define bit_XSAVEOPT 0x00000001 |
| #define bit_XSAVEC 0x00000002 |
| #define bit_XSAVES 0x00000008 |
| |
| /* Features in %eax for leaf 0x14 sub-leaf 0 */ |
| #define bit_PTWRITE 0x00000010 |
| |
| /* Features in %ecx for leaf 0x80000001 */ |
| #define bit_LAHF_LM 0x00000001 |
| #define bit_ABM 0x00000020 |
| #define bit_LZCNT bit_ABM /* for gcc compat */ |
| #define bit_SSE4a 0x00000040 |
| #define bit_PRFCHW 0x00000100 |
| #define bit_XOP 0x00000800 |
| #define bit_LWP 0x00008000 |
| #define bit_FMA4 0x00010000 |
| #define bit_TBM 0x00200000 |
| #define bit_MWAITX 0x20000000 |
| |
| /* Features in %edx for leaf 0x80000001 */ |
| #define bit_MMXEXT 0x00400000 |
| #define bit_LM 0x20000000 |
| #define bit_3DNOWP 0x40000000 |
| #define bit_3DNOW 0x80000000 |
| |
| /* Features in %ebx for leaf 0x80000008 */ |
| #define bit_CLZERO 0x00000001 |
| #define bit_WBNOINVD 0x00000200 |
| |
| |
| #if __i386__ |
| #define __cpuid(__leaf, __eax, __ebx, __ecx, __edx) \ |
| __asm("cpuid" : "=a"(__eax), "=b" (__ebx), "=c"(__ecx), "=d"(__edx) \ |
| : "0"(__leaf)) |
| |
| #define __cpuid_count(__leaf, __count, __eax, __ebx, __ecx, __edx) \ |
| __asm("cpuid" : "=a"(__eax), "=b" (__ebx), "=c"(__ecx), "=d"(__edx) \ |
| : "0"(__leaf), "2"(__count)) |
| #else |
| /* x86-64 uses %rbx as the base register, so preserve it. */ |
| #define __cpuid(__leaf, __eax, __ebx, __ecx, __edx) \ |
| __asm(" xchgq %%rbx,%q1\n" \ |
| " cpuid\n" \ |
| " xchgq %%rbx,%q1" \ |
| : "=a"(__eax), "=r" (__ebx), "=c"(__ecx), "=d"(__edx) \ |
| : "0"(__leaf)) |
| |
| #define __cpuid_count(__leaf, __count, __eax, __ebx, __ecx, __edx) \ |
| __asm(" xchgq %%rbx,%q1\n" \ |
| " cpuid\n" \ |
| " xchgq %%rbx,%q1" \ |
| : "=a"(__eax), "=r" (__ebx), "=c"(__ecx), "=d"(__edx) \ |
| : "0"(__leaf), "2"(__count)) |
| #endif |
| |
| static __inline int __get_cpuid_max (unsigned int __leaf, 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(__leaf, __eax, __ebx, __ecx, __edx); |
| if (__sig) |
| *__sig = __ebx; |
| return __eax; |
| } |
| |
| static __inline int __get_cpuid (unsigned int __leaf, unsigned int *__eax, |
| unsigned int *__ebx, unsigned int *__ecx, |
| unsigned int *__edx) |
| { |
| unsigned int __max_leaf = __get_cpuid_max(__leaf & 0x80000000, 0); |
| |
| if (__max_leaf == 0 || __max_leaf < __leaf) |
| return 0; |
| |
| __cpuid(__leaf, *__eax, *__ebx, *__ecx, *__edx); |
| return 1; |
| } |
| |
| static __inline int __get_cpuid_count (unsigned int __leaf, |
| unsigned int __subleaf, |
| unsigned int *__eax, unsigned int *__ebx, |
| unsigned int *__ecx, unsigned int *__edx) |
| { |
| unsigned int __max_leaf = __get_cpuid_max(__leaf & 0x80000000, 0); |
| |
| if (__max_leaf == 0 || __max_leaf < __leaf) |
| return 0; |
| |
| __cpuid_count(__leaf, __subleaf, *__eax, *__ebx, *__ecx, *__edx); |
| return 1; |
| } |
