diff options
Diffstat (limited to 'sysdeps/x86/cpu-features.h')
| -rw-r--r-- | sysdeps/x86/cpu-features.h | 355 |
1 files changed, 0 insertions, 355 deletions
diff --git a/sysdeps/x86/cpu-features.h b/sysdeps/x86/cpu-features.h deleted file mode 100644 index f2329ea696..0000000000 --- a/sysdeps/x86/cpu-features.h +++ /dev/null @@ -1,355 +0,0 @@ -/* This file is part of the GNU C Library. - Copyright (C) 2008-2017 Free Software Foundation, Inc. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#ifndef cpu_features_h -#define cpu_features_h - -#define bit_arch_Fast_Rep_String (1 << 0) -#define bit_arch_Fast_Copy_Backward (1 << 1) -#define bit_arch_Slow_BSF (1 << 2) -#define bit_arch_Fast_Unaligned_Load (1 << 4) -#define bit_arch_Prefer_PMINUB_for_stringop (1 << 5) -#define bit_arch_AVX_Usable (1 << 6) -#define bit_arch_FMA_Usable (1 << 7) -#define bit_arch_FMA4_Usable (1 << 8) -#define bit_arch_Slow_SSE4_2 (1 << 9) -#define bit_arch_AVX2_Usable (1 << 10) -#define bit_arch_AVX_Fast_Unaligned_Load (1 << 11) -#define bit_arch_AVX512F_Usable (1 << 12) -#define bit_arch_AVX512DQ_Usable (1 << 13) -#define bit_arch_I586 (1 << 14) -#define bit_arch_I686 (1 << 15) -#define bit_arch_Prefer_MAP_32BIT_EXEC (1 << 16) -#define bit_arch_Prefer_No_VZEROUPPER (1 << 17) -#define bit_arch_Fast_Unaligned_Copy (1 << 18) -#define bit_arch_Prefer_ERMS (1 << 19) -#define bit_arch_Use_dl_runtime_resolve_opt (1 << 20) -#define bit_arch_Use_dl_runtime_resolve_slow (1 << 21) -#define bit_arch_Prefer_No_AVX512 (1 << 22) - -/* CPUID Feature flags. */ - -/* COMMON_CPUID_INDEX_1. */ -#define bit_cpu_CX8 (1 << 8) -#define bit_cpu_CMOV (1 << 15) -#define bit_cpu_SSE (1 << 25) -#define bit_cpu_SSE2 (1 << 26) -#define bit_cpu_SSSE3 (1 << 9) -#define bit_cpu_SSE4_1 (1 << 19) -#define bit_cpu_SSE4_2 (1 << 20) -#define bit_cpu_OSXSAVE (1 << 27) -#define bit_cpu_AVX (1 << 28) -#define bit_cpu_POPCOUNT (1 << 23) -#define bit_cpu_FMA (1 << 12) -#define bit_cpu_FMA4 (1 << 16) -#define bit_cpu_HTT (1 << 28) -#define bit_cpu_LZCNT (1 << 5) -#define bit_cpu_MOVBE (1 << 22) -#define bit_cpu_POPCNT (1 << 23) - -/* COMMON_CPUID_INDEX_7. */ -#define bit_cpu_BMI1 (1 << 3) -#define bit_cpu_BMI2 (1 << 8) -#define bit_cpu_ERMS (1 << 9) -#define bit_cpu_RTM (1 << 11) -#define bit_cpu_AVX2 (1 << 5) -#define bit_cpu_AVX512F (1 << 16) -#define bit_cpu_AVX512DQ (1 << 17) -#define bit_cpu_AVX512PF (1 << 26) -#define bit_cpu_AVX512ER (1 << 27) -#define bit_cpu_AVX512CD (1 << 28) -#define bit_cpu_AVX512BW (1 << 30) -#define bit_cpu_AVX512VL (1u << 31) - -/* XCR0 Feature flags. */ -#define bit_XMM_state (1 << 1) -#define bit_YMM_state (1 << 2) -#define bit_Opmask_state (1 << 5) -#define bit_ZMM0_15_state (1 << 6) -#define bit_ZMM16_31_state (1 << 7) - -/* The integer bit array index for the first set of internal feature bits. */ -#define FEATURE_INDEX_1 0 - -/* The current maximum size of the feature integer bit array. */ -#define FEATURE_INDEX_MAX 1 - -#ifdef __ASSEMBLER__ - -# include <cpu-features-offsets.h> - -# define index_cpu_CX8 COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_EDX_OFFSET -# define index_cpu_CMOV COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_EDX_OFFSET -# define index_cpu_SSE COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_EDX_OFFSET -# define index_cpu_SSE2 COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_EDX_OFFSET -# define index_cpu_SSSE3 COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET -# define index_cpu_SSE4_1 COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET -# define index_cpu_SSE4_2 COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET -# define index_cpu_AVX COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET -# define index_cpu_AVX2 COMMON_CPUID_INDEX_7*CPUID_SIZE+CPUID_EBX_OFFSET -# define index_cpu_ERMS COMMON_CPUID_INDEX_7*CPUID_SIZE+CPUID_EBX_OFFSET -# define index_cpu_MOVBE COMMON_CPUID_INDEX_1*CPUID_SIZE+CPUID_ECX_OFFSET - -# define index_arch_Fast_Rep_String FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Fast_Copy_Backward FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Slow_BSF FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Fast_Unaligned_Load FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Prefer_PMINUB_for_stringop FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_AVX_Usable FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_FMA_Usable FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_FMA4_Usable FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Slow_SSE4_2 FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_AVX2_Usable FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_AVX_Fast_Unaligned_Load FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_AVX512F_Usable FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_AVX512DQ_Usable FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_I586 FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_I686 FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Prefer_MAP_32BIT_EXEC FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Prefer_No_VZEROUPPER FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Fast_Unaligned_Copy FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Prefer_ERMS FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Use_dl_runtime_resolve_opt FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Use_dl_runtime_resolve_slow FEATURE_INDEX_1*FEATURE_SIZE -# define index_arch_Prefer_No_AVX512 FEATURE_INDEX_1*FEATURE_SIZE - - -# if defined (_LIBC) && !IS_IN (nonlib) -# ifdef __x86_64__ -# ifdef SHARED -# if IS_IN (rtld) -# define LOAD_RTLD_GLOBAL_RO_RDX -# define HAS_FEATURE(offset, field, name) \ - testl $(bit_##field##_##name), \ - _rtld_local_ro+offset+(index_##field##_##name)(%rip) -# else -# define LOAD_RTLD_GLOBAL_RO_RDX \ - mov _rtld_global_ro@GOTPCREL(%rip), %RDX_LP -# define HAS_FEATURE(offset, field, name) \ - testl $(bit_##field##_##name), \ - RTLD_GLOBAL_RO_DL_X86_CPU_FEATURES_OFFSET+offset+(index_##field##_##name)(%rdx) -# endif -# else /* SHARED */ -# define LOAD_RTLD_GLOBAL_RO_RDX -# define HAS_FEATURE(offset, field, name) \ - testl $(bit_##field##_##name), \ - _dl_x86_cpu_features+offset+(index_##field##_##name)(%rip) -# endif /* !SHARED */ -# else /* __x86_64__ */ -# ifdef SHARED -# define LOAD_FUNC_GOT_EAX(func) \ - leal func@GOTOFF(%edx), %eax -# if IS_IN (rtld) -# define LOAD_GOT_AND_RTLD_GLOBAL_RO \ - LOAD_PIC_REG(dx) -# define HAS_FEATURE(offset, field, name) \ - testl $(bit_##field##_##name), \ - offset+(index_##field##_##name)+_rtld_local_ro@GOTOFF(%edx) -# else -# define LOAD_GOT_AND_RTLD_GLOBAL_RO \ - LOAD_PIC_REG(dx); \ - mov _rtld_global_ro@GOT(%edx), %ecx -# define HAS_FEATURE(offset, field, name) \ - testl $(bit_##field##_##name), \ - RTLD_GLOBAL_RO_DL_X86_CPU_FEATURES_OFFSET+offset+(index_##field##_##name)(%ecx) -# endif -# else /* SHARED */ -# define LOAD_FUNC_GOT_EAX(func) \ - leal func, %eax -# define LOAD_GOT_AND_RTLD_GLOBAL_RO -# define HAS_FEATURE(offset, field, name) \ - testl $(bit_##field##_##name), \ - _dl_x86_cpu_features+offset+(index_##field##_##name) -# endif /* !SHARED */ -# endif /* !__x86_64__ */ -# else /* _LIBC && !nonlib */ -# error "Sorry, <cpu-features.h> is unimplemented for assembler" -# endif /* !_LIBC || nonlib */ - -/* HAS_* evaluates to true if we may use the feature at runtime. */ -# define HAS_CPU_FEATURE(name) HAS_FEATURE (CPUID_OFFSET, cpu, name) -# define HAS_ARCH_FEATURE(name) HAS_FEATURE (FEATURE_OFFSET, arch, name) - -#else /* __ASSEMBLER__ */ - -enum - { - COMMON_CPUID_INDEX_1 = 0, - COMMON_CPUID_INDEX_7, - COMMON_CPUID_INDEX_80000001, /* for AMD */ - /* Keep the following line at the end. */ - COMMON_CPUID_INDEX_MAX - }; - -struct cpu_features -{ - enum cpu_features_kind - { - arch_kind_unknown = 0, - arch_kind_intel, - arch_kind_amd, - arch_kind_other - } kind; - int max_cpuid; - struct cpuid_registers - { - unsigned int eax; - unsigned int ebx; - unsigned int ecx; - unsigned int edx; - } cpuid[COMMON_CPUID_INDEX_MAX]; - unsigned int family; - unsigned int model; - unsigned int feature[FEATURE_INDEX_MAX]; -}; - -/* Used from outside of glibc to get access to the CPU features - structure. */ -extern const struct cpu_features *__get_cpu_features (void) - __attribute__ ((const)); - -# if defined (_LIBC) && !IS_IN (nonlib) -/* Unused for x86. */ -# define INIT_ARCH() -# define __get_cpu_features() (&GLRO(dl_x86_cpu_features)) -# endif - - -/* Only used directly in cpu-features.c. */ -# define CPU_FEATURES_CPU_P(ptr, name) \ - ((ptr->cpuid[index_cpu_##name].reg_##name & (bit_cpu_##name)) != 0) -# define CPU_FEATURES_ARCH_P(ptr, name) \ - ((ptr->feature[index_arch_##name] & (bit_arch_##name)) != 0) - -/* HAS_* evaluates to true if we may use the feature at runtime. */ -# define HAS_CPU_FEATURE(name) \ - CPU_FEATURES_CPU_P (__get_cpu_features (), name) -# define HAS_ARCH_FEATURE(name) \ - CPU_FEATURES_ARCH_P (__get_cpu_features (), name) - -# define index_cpu_CX8 COMMON_CPUID_INDEX_1 -# define index_cpu_CMOV COMMON_CPUID_INDEX_1 -# define index_cpu_SSE COMMON_CPUID_INDEX_1 -# define index_cpu_SSE2 COMMON_CPUID_INDEX_1 -# define index_cpu_SSSE3 COMMON_CPUID_INDEX_1 -# define index_cpu_SSE4_1 COMMON_CPUID_INDEX_1 -# define index_cpu_SSE4_2 COMMON_CPUID_INDEX_1 -# define index_cpu_AVX COMMON_CPUID_INDEX_1 -# define index_cpu_AVX2 COMMON_CPUID_INDEX_7 -# define index_cpu_AVX512F COMMON_CPUID_INDEX_7 -# define index_cpu_AVX512DQ COMMON_CPUID_INDEX_7 -# define index_cpu_AVX512PF COMMON_CPUID_INDEX_7 -# define index_cpu_AVX512ER COMMON_CPUID_INDEX_7 -# define index_cpu_AVX512CD COMMON_CPUID_INDEX_7 -# define index_cpu_AVX512BW COMMON_CPUID_INDEX_7 -# define index_cpu_AVX512VL COMMON_CPUID_INDEX_7 -# define index_cpu_ERMS COMMON_CPUID_INDEX_7 -# define index_cpu_RTM COMMON_CPUID_INDEX_7 -# define index_cpu_FMA COMMON_CPUID_INDEX_1 -# define index_cpu_FMA4 COMMON_CPUID_INDEX_80000001 -# define index_cpu_POPCOUNT COMMON_CPUID_INDEX_1 -# define index_cpu_OSXSAVE COMMON_CPUID_INDEX_1 -# define index_cpu_HTT COMMON_CPUID_INDEX_1 -# define index_cpu_BMI1 COMMON_CPUID_INDEX_7 -# define index_cpu_BMI2 COMMON_CPUID_INDEX_7 -# define index_cpu_LZCNT COMMON_CPUID_INDEX_1 -# define index_cpu_MOVBE COMMON_CPUID_INDEX_1 -# define index_cpu_POPCNT COMMON_CPUID_INDEX_1 - -# define reg_CX8 edx -# define reg_CMOV edx -# define reg_SSE edx -# define reg_SSE2 edx -# define reg_SSSE3 ecx -# define reg_SSE4_1 ecx -# define reg_SSE4_2 ecx -# define reg_AVX ecx -# define reg_AVX2 ebx -# define reg_AVX512F ebx -# define reg_AVX512DQ ebx -# define reg_AVX512PF ebx -# define reg_AVX512ER ebx -# define reg_AVX512CD ebx -# define reg_AVX512BW ebx -# define reg_AVX512VL ebx -# define reg_ERMS ebx -# define reg_RTM ebx -# define reg_FMA ecx -# define reg_FMA4 ecx -# define reg_POPCOUNT ecx -# define reg_OSXSAVE ecx -# define reg_HTT edx -# define reg_BMI1 ebx -# define reg_BMI2 ebx -# define reg_LZCNT ecx -# define reg_MOVBE ecx -# define reg_POPCNT ecx - -# define index_arch_Fast_Rep_String FEATURE_INDEX_1 -# define index_arch_Fast_Copy_Backward FEATURE_INDEX_1 -# define index_arch_Slow_BSF FEATURE_INDEX_1 -# define index_arch_Fast_Unaligned_Load FEATURE_INDEX_1 -# define index_arch_Prefer_PMINUB_for_stringop FEATURE_INDEX_1 -# define index_arch_AVX_Usable FEATURE_INDEX_1 -# define index_arch_FMA_Usable FEATURE_INDEX_1 -# define index_arch_FMA4_Usable FEATURE_INDEX_1 -# define index_arch_Slow_SSE4_2 FEATURE_INDEX_1 -# define index_arch_AVX2_Usable FEATURE_INDEX_1 -# define index_arch_AVX_Fast_Unaligned_Load FEATURE_INDEX_1 -# define index_arch_AVX512F_Usable FEATURE_INDEX_1 -# define index_arch_AVX512DQ_Usable FEATURE_INDEX_1 -# define index_arch_I586 FEATURE_INDEX_1 -# define index_arch_I686 FEATURE_INDEX_1 -# define index_arch_Prefer_MAP_32BIT_EXEC FEATURE_INDEX_1 -# define index_arch_Prefer_No_VZEROUPPER FEATURE_INDEX_1 -# define index_arch_Fast_Unaligned_Copy FEATURE_INDEX_1 -# define index_arch_Prefer_ERMS FEATURE_INDEX_1 -# define index_arch_Use_dl_runtime_resolve_opt FEATURE_INDEX_1 -# define index_arch_Use_dl_runtime_resolve_slow FEATURE_INDEX_1 -# define index_arch_Prefer_No_AVX512 FEATURE_INDEX_1 - -#endif /* !__ASSEMBLER__ */ - -#ifdef __x86_64__ -# define HAS_CPUID 1 -#elif defined __i586__ || defined __pentium__ -# define HAS_CPUID 1 -# define HAS_I586 1 -# define HAS_I686 HAS_ARCH_FEATURE (I686) -#elif (defined __i686__ || defined __pentiumpro__ \ - || defined __pentium4__ || defined __nocona__ \ - || defined __atom__ || defined __core2__ \ - || defined __corei7__ || defined __corei7_avx__ \ - || defined __core_avx2__ || defined __nehalem__ \ - || defined __sandybridge__ || defined __haswell__ \ - || defined __knl__ || defined __bonnell__ \ - || defined __silvermont__ \ - || defined __k6__ || defined __k8__ \ - || defined __athlon__ || defined __amdfam10__ \ - || defined __bdver1__ || defined __bdver2__ \ - || defined __bdver3__ || defined __bdver4__ \ - || defined __btver1__ || defined __btver2__) -# define HAS_CPUID 1 -# define HAS_I586 1 -# define HAS_I686 1 -#else -# define HAS_CPUID 0 -# define HAS_I586 HAS_ARCH_FEATURE (I586) -# define HAS_I686 HAS_ARCH_FEATURE (I686) -#endif - -#endif /* cpu_features_h */ |