arch/arm64/include/asm/hwcap.h

   1 /*
   2  * Copyright (C) 2012 ARM Ltd.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  */
  16 #ifndef __ASM_HWCAP_H
  17 #define __ASM_HWCAP_H
  18
  19 /*
  20  * HWCAP flags - for elf_hwcap (in kernel) and AT_HWCAP
  21  */
  22 #define HWCAP_FP                (1 << 0)
  23 #define HWCAP_ASIMD             (1 << 1)
  24
  25 #define COMPAT_HWCAP_HALF       (1 << 1)
  26 #define COMPAT_HWCAP_THUMB      (1 << 2)
  27 #define COMPAT_HWCAP_FAST_MULT  (1 << 4)
  28 #define COMPAT_HWCAP_VFP        (1 << 6)
  29 #define COMPAT_HWCAP_EDSP       (1 << 7)
  30 #define COMPAT_HWCAP_NEON       (1 << 12)
  31 #define COMPAT_HWCAP_VFPv3      (1 << 13)
  32 #define COMPAT_HWCAP_TLS        (1 << 15)
  33 #define COMPAT_HWCAP_VFPv4      (1 << 16)
  34 #define COMPAT_HWCAP_IDIVA      (1 << 17)
  35 #define COMPAT_HWCAP_IDIVT      (1 << 18)
  36 #define COMPAT_HWCAP_IDIV       (COMPAT_HWCAP_IDIVA|COMPAT_HWCAP_IDIVT)
  37
  38 #ifdef __KERNEL__
  39 #ifndef __ASSEMBLY__
  40 /*
  41  * This yields a mask that user programs can use to figure out what
  42  * instruction set this cpu supports.
  43  */
  44 #define ELF_HWCAP               (elf_hwcap)
  45 #define COMPAT_ELF_HWCAP        (COMPAT_HWCAP_HALF|COMPAT_HWCAP_THUMB|\
  46                                  COMPAT_HWCAP_FAST_MULT|COMPAT_HWCAP_EDSP|\
  47                                  COMPAT_HWCAP_TLS|COMPAT_HWCAP_VFP|\
  48                                  COMPAT_HWCAP_VFPv3|COMPAT_HWCAP_VFPv4|\
  49                                  COMPAT_HWCAP_NEON|COMPAT_HWCAP_IDIV)
  50
  51 extern unsigned int elf_hwcap;
  52 #endif
  53 #endif
  54
  55 #endif