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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 | /* SPDX-License-Identifier: GPL-2.0 */ /* * Some useful macros for LoongArch assembler code * * Copyright (C) 2020-2022 Loongson Technology Corporation Limited * * Derived from MIPS: * Copyright (C) 1995, 1996, 1997, 1999, 2001 by Ralf Baechle * Copyright (C) 1999 by Silicon Graphics, Inc. * Copyright (C) 2001 MIPS Technologies, Inc. * Copyright (C) 2002 Maciej W. Rozycki */ #ifndef __ASM_ASM_H #define __ASM_ASM_H /* LoongArch pref instruction. */ #ifdef CONFIG_CPU_HAS_PREFETCH #define PREF(hint, addr, offs) \ preld hint, addr, offs; \ #define PREFX(hint, addr, index) \ preldx hint, addr, index; \ #else /* !CONFIG_CPU_HAS_PREFETCH */ #define PREF(hint, addr, offs) #define PREFX(hint, addr, index) #endif /* !CONFIG_CPU_HAS_PREFETCH */ /* * Stack alignment */ #define STACK_ALIGN ~(0xf) /* * Macros to handle different pointer/register sizes for 32/64-bit code */ /* * Size of a register */ #ifndef __loongarch64 #define SZREG 4 #else #define SZREG 8 #endif /* * Use the following macros in assemblercode to load/store registers, * pointers etc. */ #if (SZREG == 4) #define REG_L ld.w #define REG_S st.w #define REG_ADD add.w #define REG_SUB sub.w #else /* SZREG == 8 */ #define REG_L ld.d #define REG_S st.d #define REG_ADD add.d #define REG_SUB sub.d #endif /* * How to add/sub/load/store/shift C int variables. */ #if (__SIZEOF_INT__ == 4) #define INT_ADD add.w #define INT_ADDI addi.w #define INT_SUB sub.w #define INT_L ld.w #define INT_S st.w #define INT_SLL slli.w #define INT_SLLV sll.w #define INT_SRL srli.w #define INT_SRLV srl.w #define INT_SRA srai.w #define INT_SRAV sra.w #endif #if (__SIZEOF_INT__ == 8) #define INT_ADD add.d #define INT_ADDI addi.d #define INT_SUB sub.d #define INT_L ld.d #define INT_S st.d #define INT_SLL slli.d #define INT_SLLV sll.d #define INT_SRL srli.d #define INT_SRLV srl.d #define INT_SRA srai.d #define INT_SRAV sra.d #endif /* * How to add/sub/load/store/shift C long variables. */ #if (__SIZEOF_LONG__ == 4) #define LONG_ADD add.w #define LONG_ADDI addi.w #define LONG_SUB sub.w #define LONG_L ld.w #define LONG_S st.w #define LONG_SLL slli.w #define LONG_SLLV sll.w #define LONG_SRL srli.w #define LONG_SRLV srl.w #define LONG_SRA srai.w #define LONG_SRAV sra.w #ifdef __ASSEMBLY__ #define LONG .word #endif #define LONGSIZE 4 #define LONGMASK 3 #define LONGLOG 2 #endif #if (__SIZEOF_LONG__ == 8) #define LONG_ADD add.d #define LONG_ADDI addi.d #define LONG_SUB sub.d #define LONG_L ld.d #define LONG_S st.d #define LONG_SLL slli.d #define LONG_SLLV sll.d #define LONG_SRL srli.d #define LONG_SRLV srl.d #define LONG_SRA srai.d #define LONG_SRAV sra.d #ifdef __ASSEMBLY__ #define LONG .dword #endif #define LONGSIZE 8 #define LONGMASK 7 #define LONGLOG 3 #endif /* * How to add/sub/load/store/shift pointers. */ #if (__SIZEOF_POINTER__ == 4) #define PTR_ADD add.w #define PTR_ADDI addi.w #define PTR_SUB sub.w #define PTR_L ld.w #define PTR_S st.w #define PTR_LI li.w #define PTR_SLL slli.w #define PTR_SLLV sll.w #define PTR_SRL srli.w #define PTR_SRLV srl.w #define PTR_SRA srai.w #define PTR_SRAV sra.w #define PTR_SCALESHIFT 2 #ifdef __ASSEMBLY__ #define PTR .word #endif #define PTRSIZE 4 #define PTRLOG 2 #endif #if (__SIZEOF_POINTER__ == 8) #define PTR_ADD add.d #define PTR_ADDI addi.d #define PTR_SUB sub.d #define PTR_L ld.d #define PTR_S st.d #define PTR_LI li.d #define PTR_SLL slli.d #define PTR_SLLV sll.d #define PTR_SRL srli.d #define PTR_SRLV srl.d #define PTR_SRA srai.d #define PTR_SRAV sra.d #define PTR_SCALESHIFT 3 #ifdef __ASSEMBLY__ #define PTR .dword #endif #define PTRSIZE 8 #define PTRLOG 3 #endif #endif /* __ASM_ASM_H */ |