diff options
Diffstat (limited to 'contrib/llvm/tools/clang/lib/Headers/cpuid.h')
| -rw-r--r-- | contrib/llvm/tools/clang/lib/Headers/cpuid.h | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/contrib/llvm/tools/clang/lib/Headers/cpuid.h b/contrib/llvm/tools/clang/lib/Headers/cpuid.h new file mode 100644 index 000000000000..fce6af52dd3f --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Headers/cpuid.h @@ -0,0 +1,312 @@ +/*===---- 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; +} |