tools/testing/selftests/arm64/fp/sme-inst.h

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 // Copyright (C) 2021-2 ARM Limited.
   3 // Original author: Mark Brown <broonie@kernel.org>
   4
   5 #ifndef SME_INST_H
   6 #define SME_INST_H
   7
   8 #define REG_FPMR                                        S3_3_C4_C4_2
   9
  10 /*
  11  * RDSVL X\nx, #\imm
  12  */
  13 .macro rdsvl nx, imm
  14         .inst   0x4bf5800                       \
  15                 | (\imm << 5)                   \
  16                 | (\nx)
  17 .endm
  18
  19 .macro smstop
  20         msr     S0_3_C4_C6_3, xzr
  21 .endm
  22
  23 .macro smstart_za
  24         msr     S0_3_C4_C5_3, xzr
  25 .endm
  26
  27 .macro smstart_sm
  28         msr     S0_3_C4_C3_3, xzr
  29 .endm
  30
  31 /*
  32  * LDR (vector to ZA array):
  33  *      LDR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL]
  34  */
  35 .macro _ldr_za nw, nxbase, offset=0
  36         .inst   0xe1000000                      \
  37                 | (((\nw) & 3) << 13)           \
  38                 | ((\nxbase) << 5)              \
  39                 | ((\offset) & 7)
  40 .endm
  41
  42 /*
  43  * STR (vector from ZA array):
  44  *      STR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL]
  45  */
  46 .macro _str_za nw, nxbase, offset=0
  47         .inst   0xe1200000                      \
  48                 | (((\nw) & 3) << 13)           \
  49                 | ((\nxbase) << 5)              \
  50                 | ((\offset) & 7)
  51 .endm
  52
  53 /*
  54  * LDR (ZT0)
  55  *
  56  *      LDR ZT0, nx
  57  */
  58 .macro _ldr_zt nx
  59         .inst   0xe11f8000                      \
  60                 | (((\nx) & 0x1f) << 5)
  61 .endm
  62
  63 /*
  64  * STR (ZT0)
  65  *
  66  *      STR ZT0, nx
  67  */
  68 .macro _str_zt nx
  69         .inst   0xe13f8000                      \
  70                 | (((\nx) & 0x1f) << 5)
  71 .endm
  72
  73 #endif