sysdeps/x86/bits/platform/x86.h

   1 /* Constants and data structures for x86 CPU features.
   2    This file is part of the GNU C Library.
   3    Copyright (C) 2008-2023 Free Software Foundation, Inc.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _SYS_PLATFORM_X86_H
  20 # error "Never include <bits/platform/x86.h> directly; use <sys/platform/x86.h> instead."
  21 #endif
  22
  23 enum
  24 {
  25   CPUID_INDEX_1 = 0,
  26   CPUID_INDEX_7,
  27   CPUID_INDEX_80000001,
  28   CPUID_INDEX_D_ECX_1,
  29   CPUID_INDEX_80000007,
  30   CPUID_INDEX_80000008,
  31   CPUID_INDEX_7_ECX_1,
  32   CPUID_INDEX_19,
  33   CPUID_INDEX_14_ECX_0
  34 };
  35
  36 struct cpuid_feature
  37 {
  38   unsigned int cpuid_array[4];
  39   unsigned int active_array[4];
  40 };
  41
  42 enum cpuid_register_index
  43 {
  44   cpuid_register_index_eax = 0,
  45   cpuid_register_index_ebx,
  46   cpuid_register_index_ecx,
  47   cpuid_register_index_edx
  48 };
  49
  50 /* CPU features.  */
  51
  52 enum
  53 {
  54   x86_cpu_index_1_ecx
  55     = (CPUID_INDEX_1 * 8 * 4 * sizeof (unsigned int)
  56        + cpuid_register_index_ecx * 8 * sizeof (unsigned int)),
  57
  58   x86_cpu_SSE3                  = x86_cpu_index_1_ecx,
  59   x86_cpu_PCLMULQDQ             = x86_cpu_index_1_ecx + 1,
  60   x86_cpu_DTES64                = x86_cpu_index_1_ecx + 2,
  61   x86_cpu_MONITOR               = x86_cpu_index_1_ecx + 3,
  62   x86_cpu_DS_CPL                = x86_cpu_index_1_ecx + 4,
  63   x86_cpu_VMX                   = x86_cpu_index_1_ecx + 5,
  64   x86_cpu_SMX                   = x86_cpu_index_1_ecx + 6,
  65   x86_cpu_EIST                  = x86_cpu_index_1_ecx + 7,
  66   x86_cpu_TM2                   = x86_cpu_index_1_ecx + 8,
  67   x86_cpu_SSSE3                 = x86_cpu_index_1_ecx + 9,
  68   x86_cpu_CNXT_ID               = x86_cpu_index_1_ecx + 10,
  69   x86_cpu_SDBG                  = x86_cpu_index_1_ecx + 11,
  70   x86_cpu_FMA                   = x86_cpu_index_1_ecx + 12,
  71   x86_cpu_CMPXCHG16B            = x86_cpu_index_1_ecx + 13,
  72   x86_cpu_XTPRUPDCTRL           = x86_cpu_index_1_ecx + 14,
  73   x86_cpu_PDCM                  = x86_cpu_index_1_ecx + 15,
  74   x86_cpu_INDEX_1_ECX_16        = x86_cpu_index_1_ecx + 16,
  75   x86_cpu_PCID                  = x86_cpu_index_1_ecx + 17,
  76   x86_cpu_DCA                   = x86_cpu_index_1_ecx + 18,
  77   x86_cpu_SSE4_1                = x86_cpu_index_1_ecx + 19,
  78   x86_cpu_SSE4_2                = x86_cpu_index_1_ecx + 20,
  79   x86_cpu_X2APIC                = x86_cpu_index_1_ecx + 21,
  80   x86_cpu_MOVBE                 = x86_cpu_index_1_ecx + 22,
  81   x86_cpu_POPCNT                = x86_cpu_index_1_ecx + 23,
  82   x86_cpu_TSC_DEADLINE          = x86_cpu_index_1_ecx + 24,
  83   x86_cpu_AES                   = x86_cpu_index_1_ecx + 25,
  84   x86_cpu_XSAVE                 = x86_cpu_index_1_ecx + 26,
  85   x86_cpu_OSXSAVE               = x86_cpu_index_1_ecx + 27,
  86   x86_cpu_AVX                   = x86_cpu_index_1_ecx + 28,
  87   x86_cpu_F16C                  = x86_cpu_index_1_ecx + 29,
  88   x86_cpu_RDRAND                = x86_cpu_index_1_ecx + 30,
  89   x86_cpu_INDEX_1_ECX_31        = x86_cpu_index_1_ecx + 31,
  90
  91   x86_cpu_index_1_edx
  92     = (CPUID_INDEX_1 * 8 * 4 * sizeof (unsigned int)
  93        + cpuid_register_index_edx * 8 * sizeof (unsigned int)),
  94
  95   x86_cpu_FPU                   = x86_cpu_index_1_edx,
  96   x86_cpu_VME                   = x86_cpu_index_1_edx + 1,
  97   x86_cpu_DE                    = x86_cpu_index_1_edx + 2,
  98   x86_cpu_PSE                   = x86_cpu_index_1_edx + 3,
  99   x86_cpu_TSC                   = x86_cpu_index_1_edx + 4,
 100   x86_cpu_MSR                   = x86_cpu_index_1_edx + 5,
 101   x86_cpu_PAE                   = x86_cpu_index_1_edx + 6,
 102   x86_cpu_MCE                   = x86_cpu_index_1_edx + 7,
 103   x86_cpu_CX8                   = x86_cpu_index_1_edx + 8,
 104   x86_cpu_APIC                  = x86_cpu_index_1_edx + 9,
 105   x86_cpu_INDEX_1_EDX_10        = x86_cpu_index_1_edx + 10,
 106   x86_cpu_SEP                   = x86_cpu_index_1_edx + 11,
 107   x86_cpu_MTRR                  = x86_cpu_index_1_edx + 12,
 108   x86_cpu_PGE                   = x86_cpu_index_1_edx + 13,
 109   x86_cpu_MCA                   = x86_cpu_index_1_edx + 14,
 110   x86_cpu_CMOV                  = x86_cpu_index_1_edx + 15,
 111   x86_cpu_PAT                   = x86_cpu_index_1_edx + 16,
 112   x86_cpu_PSE_36                = x86_cpu_index_1_edx + 17,
 113   x86_cpu_PSN                   = x86_cpu_index_1_edx + 18,
 114   x86_cpu_CLFSH                 = x86_cpu_index_1_edx + 19,
 115   x86_cpu_INDEX_1_EDX_20        = x86_cpu_index_1_edx + 20,
 116   x86_cpu_DS                    = x86_cpu_index_1_edx + 21,
 117   x86_cpu_ACPI                  = x86_cpu_index_1_edx + 22,
 118   x86_cpu_MMX                   = x86_cpu_index_1_edx + 23,
 119   x86_cpu_FXSR                  = x86_cpu_index_1_edx + 24,
 120   x86_cpu_SSE                   = x86_cpu_index_1_edx + 25,
 121   x86_cpu_SSE2                  = x86_cpu_index_1_edx + 26,
 122   x86_cpu_SS                    = x86_cpu_index_1_edx + 27,
 123   x86_cpu_HTT                   = x86_cpu_index_1_edx + 28,
 124   x86_cpu_TM                    = x86_cpu_index_1_edx + 29,
 125   x86_cpu_INDEX_1_EDX_30        = x86_cpu_index_1_edx + 30,
 126   x86_cpu_PBE                   = x86_cpu_index_1_edx + 31,
 127
 128   x86_cpu_index_7_ebx
 129     = (CPUID_INDEX_7 * 8 * 4 * sizeof (unsigned int)
 130        + cpuid_register_index_ebx * 8 * sizeof (unsigned int)),
 131
 132   x86_cpu_FSGSBASE              = x86_cpu_index_7_ebx,
 133   x86_cpu_TSC_ADJUST            = x86_cpu_index_7_ebx + 1,
 134   x86_cpu_SGX                   = x86_cpu_index_7_ebx + 2,
 135   x86_cpu_BMI1                  = x86_cpu_index_7_ebx + 3,
 136   x86_cpu_HLE                   = x86_cpu_index_7_ebx + 4,
 137   x86_cpu_AVX2                  = x86_cpu_index_7_ebx + 5,
 138   x86_cpu_INDEX_7_EBX_6         = x86_cpu_index_7_ebx + 6,
 139   x86_cpu_SMEP                  = x86_cpu_index_7_ebx + 7,
 140   x86_cpu_BMI2                  = x86_cpu_index_7_ebx + 8,
 141   x86_cpu_ERMS                  = x86_cpu_index_7_ebx + 9,
 142   x86_cpu_INVPCID               = x86_cpu_index_7_ebx + 10,
 143   x86_cpu_RTM                   = x86_cpu_index_7_ebx + 11,
 144   x86_cpu_RDT_M                 = x86_cpu_index_7_ebx + 12,
 145   x86_cpu_DEPR_FPU_CS_DS        = x86_cpu_index_7_ebx + 13,
 146   x86_cpu_MPX                   = x86_cpu_index_7_ebx + 14,
 147   x86_cpu_RDT_A                 = x86_cpu_index_7_ebx + 15,
 148   x86_cpu_AVX512F               = x86_cpu_index_7_ebx + 16,
 149   x86_cpu_AVX512DQ              = x86_cpu_index_7_ebx + 17,
 150   x86_cpu_RDSEED                = x86_cpu_index_7_ebx + 18,
 151   x86_cpu_ADX                   = x86_cpu_index_7_ebx + 19,
 152   x86_cpu_SMAP                  = x86_cpu_index_7_ebx + 20,
 153   x86_cpu_AVX512_IFMA           = x86_cpu_index_7_ebx + 21,
 154   x86_cpu_INDEX_7_EBX_22        = x86_cpu_index_7_ebx + 22,
 155   x86_cpu_CLFLUSHOPT            = x86_cpu_index_7_ebx + 23,
 156   x86_cpu_CLWB                  = x86_cpu_index_7_ebx + 24,
 157   x86_cpu_TRACE                 = x86_cpu_index_7_ebx + 25,
 158   x86_cpu_AVX512PF              = x86_cpu_index_7_ebx + 26,
 159   x86_cpu_AVX512ER              = x86_cpu_index_7_ebx + 27,
 160   x86_cpu_AVX512CD              = x86_cpu_index_7_ebx + 28,
 161   x86_cpu_SHA                   = x86_cpu_index_7_ebx + 29,
 162   x86_cpu_AVX512BW              = x86_cpu_index_7_ebx + 30,
 163   x86_cpu_AVX512VL              = x86_cpu_index_7_ebx + 31,
 164
 165   x86_cpu_index_7_ecx
 166     = (CPUID_INDEX_7 * 8 * 4 * sizeof (unsigned int)
 167        + cpuid_register_index_ecx * 8 * sizeof (unsigned int)),
 168
 169   x86_cpu_PREFETCHWT1           = x86_cpu_index_7_ecx,
 170   x86_cpu_AVX512_VBMI           = x86_cpu_index_7_ecx + 1,
 171   x86_cpu_UMIP                  = x86_cpu_index_7_ecx + 2,
 172   x86_cpu_PKU                   = x86_cpu_index_7_ecx + 3,
 173   x86_cpu_OSPKE                 = x86_cpu_index_7_ecx + 4,
 174   x86_cpu_WAITPKG               = x86_cpu_index_7_ecx + 5,
 175   x86_cpu_AVX512_VBMI2          = x86_cpu_index_7_ecx + 6,
 176   x86_cpu_SHSTK                 = x86_cpu_index_7_ecx + 7,
 177   x86_cpu_GFNI                  = x86_cpu_index_7_ecx + 8,
 178   x86_cpu_VAES                  = x86_cpu_index_7_ecx + 9,
 179   x86_cpu_VPCLMULQDQ            = x86_cpu_index_7_ecx + 10,
 180   x86_cpu_AVX512_VNNI           = x86_cpu_index_7_ecx + 11,
 181   x86_cpu_AVX512_BITALG         = x86_cpu_index_7_ecx + 12,
 182   x86_cpu_INDEX_7_ECX_13        = x86_cpu_index_7_ecx + 13,
 183   x86_cpu_AVX512_VPOPCNTDQ      = x86_cpu_index_7_ecx + 14,
 184   x86_cpu_INDEX_7_ECX_15        = x86_cpu_index_7_ecx + 15,
 185   x86_cpu_LA57                  = x86_cpu_index_7_ecx + 16,
 186 /* Note: Bits 17-21: The value of MAWAU used by the BNDLDX and BNDSTX
 187    instructions in 64-bit mode.  */
 188   x86_cpu_RDPID                 = x86_cpu_index_7_ecx + 22,
 189   x86_cpu_KL                    = x86_cpu_index_7_ecx + 23,
 190   x86_cpu_BUS_LOCK_DETECT       = x86_cpu_index_7_ecx + 24,
 191   x86_cpu_CLDEMOTE              = x86_cpu_index_7_ecx + 25,
 192   x86_cpu_INDEX_7_ECX_26        = x86_cpu_index_7_ecx + 26,
 193   x86_cpu_MOVDIRI               = x86_cpu_index_7_ecx + 27,
 194   x86_cpu_MOVDIR64B             = x86_cpu_index_7_ecx + 28,
 195   x86_cpu_ENQCMD                = x86_cpu_index_7_ecx + 29,
 196   x86_cpu_SGX_LC                = x86_cpu_index_7_ecx + 30,
 197   x86_cpu_PKS                   = x86_cpu_index_7_ecx + 31,
 198
 199   x86_cpu_index_7_edx
 200     = (CPUID_INDEX_7 * 8 * 4 * sizeof (unsigned int)
 201        + cpuid_register_index_edx * 8 * sizeof (unsigned int)),
 202
 203   x86_cpu_INDEX_7_EDX_0         = x86_cpu_index_7_edx,
 204   x86_cpu_SGX_KEYS              = x86_cpu_index_7_edx + 1,
 205   x86_cpu_AVX512_4VNNIW         = x86_cpu_index_7_edx + 2,
 206   x86_cpu_AVX512_4FMAPS         = x86_cpu_index_7_edx + 3,
 207   x86_cpu_FSRM                  = x86_cpu_index_7_edx + 4,
 208   x86_cpu_UINTR                 = x86_cpu_index_7_edx + 5,
 209   x86_cpu_INDEX_7_EDX_6         = x86_cpu_index_7_edx + 6,
 210   x86_cpu_INDEX_7_EDX_7         = x86_cpu_index_7_edx + 7,
 211   x86_cpu_AVX512_VP2INTERSECT   = x86_cpu_index_7_edx + 8,
 212   x86_cpu_INDEX_7_EDX_9         = x86_cpu_index_7_edx + 9,
 213   x86_cpu_MD_CLEAR              = x86_cpu_index_7_edx + 10,
 214   x86_cpu_RTM_ALWAYS_ABORT      = x86_cpu_index_7_edx + 11,
 215   x86_cpu_INDEX_7_EDX_12        = x86_cpu_index_7_edx + 12,
 216   x86_cpu_RTM_FORCE_ABORT       = x86_cpu_index_7_edx + 13,
 217   x86_cpu_SERIALIZE             = x86_cpu_index_7_edx + 14,
 218   x86_cpu_HYBRID                = x86_cpu_index_7_edx + 15,
 219   x86_cpu_TSXLDTRK              = x86_cpu_index_7_edx + 16,
 220   x86_cpu_INDEX_7_EDX_17        = x86_cpu_index_7_edx + 17,
 221   x86_cpu_PCONFIG               = x86_cpu_index_7_edx + 18,
 222   x86_cpu_LBR                   = x86_cpu_index_7_edx + 19,
 223   x86_cpu_IBT                   = x86_cpu_index_7_edx + 20,
 224   x86_cpu_INDEX_7_EDX_21        = x86_cpu_index_7_edx + 21,
 225   x86_cpu_AMX_BF16              = x86_cpu_index_7_edx + 22,
 226   x86_cpu_AVX512_FP16           = x86_cpu_index_7_edx + 23,
 227   x86_cpu_AMX_TILE              = x86_cpu_index_7_edx + 24,
 228   x86_cpu_AMX_INT8              = x86_cpu_index_7_edx + 25,
 229   x86_cpu_IBRS_IBPB             = x86_cpu_index_7_edx + 26,
 230   x86_cpu_STIBP                 = x86_cpu_index_7_edx + 27,
 231   x86_cpu_L1D_FLUSH             = x86_cpu_index_7_edx + 28,
 232   x86_cpu_ARCH_CAPABILITIES     = x86_cpu_index_7_edx + 29,
 233   x86_cpu_CORE_CAPABILITIES     = x86_cpu_index_7_edx + 30,
 234   x86_cpu_SSBD                  = x86_cpu_index_7_edx + 31,
 235
 236   x86_cpu_index_80000001_ecx
 237     = (CPUID_INDEX_80000001 * 8 * 4 * sizeof (unsigned int)
 238        + cpuid_register_index_ecx * 8 * sizeof (unsigned int)),
 239
 240   x86_cpu_LAHF64_SAHF64         = x86_cpu_index_80000001_ecx,
 241   x86_cpu_SVM                   = x86_cpu_index_80000001_ecx + 2,
 242   x86_cpu_LZCNT                 = x86_cpu_index_80000001_ecx + 5,
 243   x86_cpu_SSE4A                 = x86_cpu_index_80000001_ecx + 6,
 244   x86_cpu_PREFETCHW             = x86_cpu_index_80000001_ecx + 8,
 245   x86_cpu_XOP                   = x86_cpu_index_80000001_ecx + 11,
 246   x86_cpu_LWP                   = x86_cpu_index_80000001_ecx + 15,
 247   x86_cpu_FMA4                  = x86_cpu_index_80000001_ecx + 16,
 248   x86_cpu_TBM                   = x86_cpu_index_80000001_ecx + 21,
 249
 250   x86_cpu_index_80000001_edx
 251     = (CPUID_INDEX_80000001 * 8 * 4 * sizeof (unsigned int)
 252        + cpuid_register_index_edx * 8 * sizeof (unsigned int)),
 253
 254   x86_cpu_SYSCALL_SYSRET        = x86_cpu_index_80000001_edx + 11,
 255   x86_cpu_NX                    = x86_cpu_index_80000001_edx + 20,
 256   x86_cpu_PAGE1GB               = x86_cpu_index_80000001_edx + 26,
 257   x86_cpu_RDTSCP                = x86_cpu_index_80000001_edx + 27,
 258   x86_cpu_LM                    = x86_cpu_index_80000001_edx + 29,
 259
 260   x86_cpu_index_d_ecx_1_eax
 261     = (CPUID_INDEX_D_ECX_1 * 8 * 4 * sizeof (unsigned int)
 262        + cpuid_register_index_eax * 8 * sizeof (unsigned int)),
 263
 264   x86_cpu_XSAVEOPT              = x86_cpu_index_d_ecx_1_eax,
 265   x86_cpu_XSAVEC                = x86_cpu_index_d_ecx_1_eax + 1,
 266   x86_cpu_XGETBV_ECX_1          = x86_cpu_index_d_ecx_1_eax + 2,
 267   x86_cpu_XSAVES                = x86_cpu_index_d_ecx_1_eax + 3,
 268   x86_cpu_XFD                   = x86_cpu_index_d_ecx_1_eax + 4,
 269
 270   x86_cpu_index_80000007_edx
 271     = (CPUID_INDEX_80000007 * 8 * 4 * sizeof (unsigned int)
 272        + cpuid_register_index_edx * 8 * sizeof (unsigned int)),
 273
 274   x86_cpu_INVARIANT_TSC         = x86_cpu_index_80000007_edx + 8,
 275
 276   x86_cpu_index_80000008_ebx
 277     = (CPUID_INDEX_80000008 * 8 * 4 * sizeof (unsigned int)
 278        + cpuid_register_index_ebx * 8 * sizeof (unsigned int)),
 279
 280   x86_cpu_WBNOINVD              = x86_cpu_index_80000008_ebx + 9,
 281   x86_cpu_AMD_IBPB              = x86_cpu_index_80000008_ebx + 12,
 282   x86_cpu_AMD_IBRS              = x86_cpu_index_80000008_ebx + 14,
 283   x86_cpu_AMD_STIBP             = x86_cpu_index_80000008_ebx + 15,
 284   x86_cpu_AMD_SSBD              = x86_cpu_index_80000008_ebx + 24,
 285   x86_cpu_AMD_VIRT_SSBD         = x86_cpu_index_80000008_ebx + 25,
 286
 287   x86_cpu_index_7_ecx_1_eax
 288     = (CPUID_INDEX_7_ECX_1 * 8 * 4 * sizeof (unsigned int)
 289        + cpuid_register_index_eax * 8 * sizeof (unsigned int)),
 290
 291   x86_cpu_RAO_INT               = x86_cpu_index_7_ecx_1_eax + 3,
 292   x86_cpu_AVX_VNNI              = x86_cpu_index_7_ecx_1_eax + 4,
 293   x86_cpu_AVX512_BF16           = x86_cpu_index_7_ecx_1_eax + 5,
 294   x86_cpu_LASS                  = x86_cpu_index_7_ecx_1_eax + 6,
 295   x86_cpu_CMPCCXADD             = x86_cpu_index_7_ecx_1_eax + 7,
 296   x86_cpu_ArchPerfmonExt        = x86_cpu_index_7_ecx_1_eax + 8,
 297   x86_cpu_FZLRM                 = x86_cpu_index_7_ecx_1_eax + 10,
 298   x86_cpu_FSRS                  = x86_cpu_index_7_ecx_1_eax + 11,
 299   x86_cpu_FSRCS                 = x86_cpu_index_7_ecx_1_eax + 12,
 300   x86_cpu_WRMSRNS               = x86_cpu_index_7_ecx_1_eax + 19,
 301   x86_cpu_AMX_FP16              = x86_cpu_index_7_ecx_1_eax + 21,
 302   x86_cpu_HRESET                = x86_cpu_index_7_ecx_1_eax + 22,
 303   x86_cpu_AVX_IFMA              = x86_cpu_index_7_ecx_1_eax + 23,
 304   x86_cpu_LAM                   = x86_cpu_index_7_ecx_1_eax + 26,
 305   x86_cpu_MSRLIST               = x86_cpu_index_7_ecx_1_eax + 27,
 306
 307   x86_cpu_index_7_ecx_1_edx
 308     = (CPUID_INDEX_7_ECX_1 * 8 * 4 * sizeof (unsigned int)
 309        + cpuid_register_index_edx * 8 * sizeof (unsigned int)),
 310
 311   x86_cpu_AVX_VNNI_INT8         = x86_cpu_index_7_ecx_1_edx + 4,
 312   x86_cpu_AVX_NE_CONVERT        = x86_cpu_index_7_ecx_1_edx + 5,
 313   x86_cpu_AMX_COMPLEX           = x86_cpu_index_7_ecx_1_edx + 8,
 314   x86_cpu_PREFETCHI             = x86_cpu_index_7_ecx_1_edx + 14,
 315   x86_cpu_APX_F                 = x86_cpu_index_7_ecx_1_edx + 21,
 316
 317   x86_cpu_index_19_ebx
 318     = (CPUID_INDEX_19 * 8 * 4 * sizeof (unsigned int)
 319        + cpuid_register_index_ebx * 8 * sizeof (unsigned int)),
 320
 321   x86_cpu_AESKLE                = x86_cpu_index_19_ebx,
 322   x86_cpu_WIDE_KL               = x86_cpu_index_19_ebx + 2,
 323
 324   x86_cpu_index_14_ecx_0_ebx
 325     = (CPUID_INDEX_14_ECX_0 * 8 * 4 * sizeof (unsigned int)
 326        + cpuid_register_index_ebx * 8 * sizeof (unsigned int)),
 327
 328   x86_cpu_PTWRITE               = x86_cpu_index_14_ecx_0_ebx + 4
 329 };