sysdeps/unix/sysv/linux/powerpc/cpu-features.h

   1 /* Initialize cpu feature data.  PowerPC version.
   2    Copyright (C) 2017-2023 Free Software Foundation, Inc.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #ifndef __CPU_FEATURES_POWERPC_H
  19 # define __CPU_FEATURES_POWERPC_H
  20
  21 #include <stdbool.h>
  22 #include <sys/auxv.h>
  23
  24 struct cpu_features
  25 {
  26   bool use_cached_memopt;
  27   unsigned long int hwcap;
  28   unsigned long int hwcap2;
  29 };
  30
  31 static const char hwcap_names[] = {
  32   "4xxmac\0"
  33   "altivec\0"
  34   "arch_2_05\0"
  35   "arch_2_06\0"
  36   "archpmu\0"
  37   "booke\0"
  38   "cellbe\0"
  39   "dfp\0"
  40   "efpdouble\0"
  41   "efpsingle\0"
  42   "fpu\0"
  43   "ic_snoop\0"
  44   "mmu\0"
  45   "notb\0"
  46   "pa6t\0"
  47   "power4\0"
  48   "power5\0"
  49   "power5+\0"
  50   "power6x\0"
  51   "ppc32\0"
  52   "ppc601\0"
  53   "ppc64\0"
  54   "ppcle\0"
  55   "smt\0"
  56   "spe\0"
  57   "true_le\0"
  58   "ucache\0"
  59   "vsx\0"
  60   "arch_2_07\0"
  61   "dscr\0"
  62   "ebb\0"
  63   "htm\0"
  64   "htm-nosc\0"
  65   "htm-no-suspend\0"
  66   "isel\0"
  67   "tar\0"
  68   "vcrypto\0"
  69   "arch_3_00\0"
  70   "ieee128\0"
  71   "darn\0"
  72   "scv\0"
  73   "arch_3_1\0"
  74   "mma\0"
  75 };
  76
  77 static const struct
  78 {
  79   unsigned int mask;
  80   bool id;
  81 } hwcap_tunables[] = {
  82    /* AT_HWCAP tunable masks.  */
  83    { PPC_FEATURE_HAS_4xxMAC,                 0 },
  84    { PPC_FEATURE_HAS_ALTIVEC,                0 },
  85    { PPC_FEATURE_ARCH_2_05,                  0 },
  86    { PPC_FEATURE_ARCH_2_06,                  0 },
  87    { PPC_FEATURE_PSERIES_PERFMON_COMPAT,     0 },
  88    { PPC_FEATURE_BOOKE,                      0 },
  89    { PPC_FEATURE_CELL_BE,                    0 },
  90    { PPC_FEATURE_HAS_DFP,                    0 },
  91    { PPC_FEATURE_HAS_EFP_DOUBLE,             0 },
  92    { PPC_FEATURE_HAS_EFP_SINGLE,             0 },
  93    { PPC_FEATURE_HAS_FPU,                    0 },
  94    { PPC_FEATURE_ICACHE_SNOOP,               0 },
  95    { PPC_FEATURE_HAS_MMU,                    0 },
  96    { PPC_FEATURE_NO_TB,                      0 },
  97    { PPC_FEATURE_PA6T,                       0 },
  98    { PPC_FEATURE_POWER4,                     0 },
  99    { PPC_FEATURE_POWER5,                     0 },
 100    { PPC_FEATURE_POWER5_PLUS,                0 },
 101    { PPC_FEATURE_POWER6_EXT,                 0 },
 102    { PPC_FEATURE_32,                         0 },
 103    { PPC_FEATURE_601_INSTR,                  0 },
 104    { PPC_FEATURE_64,                         0 },
 105    { PPC_FEATURE_PPC_LE,                     0 },
 106    { PPC_FEATURE_SMT,                        0 },
 107    { PPC_FEATURE_HAS_SPE,                    0 },
 108    { PPC_FEATURE_TRUE_LE,                    0 },
 109    { PPC_FEATURE_UNIFIED_CACHE,              0 },
 110    { PPC_FEATURE_HAS_VSX,                    0 },
 111
 112    /* AT_HWCAP2 tunable masks.  */
 113    { PPC_FEATURE2_ARCH_2_07,                 1 },
 114    { PPC_FEATURE2_HAS_DSCR,                  1 },
 115    { PPC_FEATURE2_HAS_EBB,                   1 },
 116    { PPC_FEATURE2_HAS_HTM,                   1 },
 117    { PPC_FEATURE2_HTM_NOSC,                  1 },
 118    { PPC_FEATURE2_HTM_NO_SUSPEND,            1 },
 119    { PPC_FEATURE2_HAS_ISEL,                  1 },
 120    { PPC_FEATURE2_HAS_TAR,                   1 },
 121    { PPC_FEATURE2_HAS_VEC_CRYPTO,            1 },
 122    { PPC_FEATURE2_ARCH_3_00,                 1 },
 123    { PPC_FEATURE2_HAS_IEEE128,               1 },
 124    { PPC_FEATURE2_DARN,                      1 },
 125    { PPC_FEATURE2_SCV,                       1 },
 126    { PPC_FEATURE2_ARCH_3_1,                  1 },
 127    { PPC_FEATURE2_MMA,                       1 },
 128 };
 129
 130 #endif /* __CPU_FEATURES_H  */