arch/riscv/include/uapi/asm/auxvec.h

   1 /* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
   2 /*
   3  * Copyright (C) 2012 ARM Ltd.
   4  * Copyright (C) 2015 Regents of the University of California
   5  */
   6
   7 #ifndef _UAPI_ASM_RISCV_AUXVEC_H
   8 #define _UAPI_ASM_RISCV_AUXVEC_H
   9
  10 /* vDSO location */
  11 #define AT_SYSINFO_EHDR 33
  12
  13 /*
  14  * The set of entries below represent more extensive information
  15  * about the caches, in the form of two entry per cache type,
  16  * one entry containing the cache size in bytes, and the other
  17  * containing the cache line size in bytes in the bottom 16 bits
  18  * and the cache associativity in the next 16 bits.
  19  *
  20  * The associativity is such that if N is the 16-bit value, the
  21  * cache is N way set associative. A value if 0xffff means fully
  22  * associative, a value of 1 means directly mapped.
  23  *
  24  * For all these fields, a value of 0 means that the information
  25  * is not known.
  26  */
  27 #define AT_L1I_CACHESIZE        40
  28 #define AT_L1I_CACHEGEOMETRY    41
  29 #define AT_L1D_CACHESIZE        42
  30 #define AT_L1D_CACHEGEOMETRY    43
  31 #define AT_L2_CACHESIZE         44
  32 #define AT_L2_CACHEGEOMETRY     45
  33
  34 /* entries in ARCH_DLINFO */
  35 #define AT_VECTOR_SIZE_ARCH     7
  36
  37 #endif /* _UAPI_ASM_RISCV_AUXVEC_H */