1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer 7 * Copyright (C) 2005 Maciej W. Rozycki 8 * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org) 9 * Copyright (C) 2012, 2013 MIPS Technologies, Inc. All rights reserved. 10 */ 11 12 #ifndef __ASM_UASM_H 13 #define __ASM_UASM_H 14 15 #include <linux/types.h> 16 17 #ifdef CONFIG_EXPORT_UASM 18 #include <linux/export.h> 19 #define UASM_EXPORT_SYMBOL(sym) EXPORT_SYMBOL(sym) 20 #else 21 #define UASM_EXPORT_SYMBOL(sym) 22 #endif 23 24 #define Ip_u1u2u3(op) \ 25 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 26 27 #define Ip_u2u1u3(op) \ 28 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 29 30 #define Ip_u3u2u1(op) \ 31 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 32 33 #define Ip_u3u1u2(op) \ 34 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 35 36 #define Ip_u1u2s3(op) \ 37 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) 38 39 #define Ip_u2s3u1(op) \ 40 void uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c) 41 42 #define Ip_s3s1s2(op) \ 43 void uasm_i##op(u32 **buf, int a, int b, int c) 44 45 #define Ip_u2u1s3(op) \ 46 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) 47 48 #define Ip_u2u1msbu3(op) \ 49 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c, \ 50 unsigned int d) 51 52 #define Ip_u1u2(op) \ 53 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b) 54 55 #define Ip_u2u1(op) \ 56 void uasm_i##op(u32 **buf, unsigned int a, unsigned int b) 57 58 #define Ip_u1s2(op) \ 59 void uasm_i##op(u32 **buf, unsigned int a, signed int b) 60 61 #define Ip_u1(op) void uasm_i##op(u32 **buf, unsigned int a) 62 63 #define Ip_0(op) void uasm_i##op(u32 **buf) 64 65 Ip_u2u1s3(_addiu); 66 Ip_u3u1u2(_addu); 67 Ip_u3u1u2(_and); 68 Ip_u2u1u3(_andi); 69 Ip_u1u2s3(_bbit0); 70 Ip_u1u2s3(_bbit1); 71 Ip_u1u2s3(_beq); 72 Ip_u1u2s3(_beql); 73 Ip_u1s2(_bgez); 74 Ip_u1s2(_bgezl); 75 Ip_u1s2(_bgtz); 76 Ip_u1s2(_blez); 77 Ip_u1s2(_bltz); 78 Ip_u1s2(_bltzl); 79 Ip_u1u2s3(_bne); 80 Ip_u1(_break); 81 Ip_u2s3u1(_cache); 82 Ip_u1u2(_cfc1); 83 Ip_u2u1(_cfcmsa); 84 Ip_u1u2(_ctc1); 85 Ip_u2u1(_ctcmsa); 86 Ip_u2u1s3(_daddiu); 87 Ip_u3u1u2(_daddu); 88 Ip_u1u2(_ddivu); 89 Ip_u3u1u2(_ddivu_r6); 90 Ip_u1(_di); 91 Ip_u2u1msbu3(_dins); 92 Ip_u2u1msbu3(_dinsm); 93 Ip_u2u1msbu3(_dinsu); 94 Ip_u1u2(_divu); 95 Ip_u3u1u2(_divu_r6); 96 Ip_u1u2u3(_dmfc0); 97 Ip_u3u1u2(_dmodu); 98 Ip_u1u2u3(_dmtc0); 99 Ip_u1u2(_dmultu); 100 Ip_u3u1u2(_dmulu); 101 Ip_u2u1u3(_drotr); 102 Ip_u2u1u3(_drotr32); 103 Ip_u2u1(_dsbh); 104 Ip_u2u1(_dshd); 105 Ip_u2u1u3(_dsll); 106 Ip_u2u1u3(_dsll32); 107 Ip_u3u2u1(_dsllv); 108 Ip_u2u1u3(_dsra); 109 Ip_u2u1u3(_dsra32); 110 Ip_u3u2u1(_dsrav); 111 Ip_u2u1u3(_dsrl); 112 Ip_u2u1u3(_dsrl32); 113 Ip_u3u2u1(_dsrlv); 114 Ip_u3u1u2(_dsubu); 115 Ip_0(_eret); 116 Ip_u2u1msbu3(_ext); 117 Ip_u2u1msbu3(_ins); 118 Ip_u1(_j); 119 Ip_u1(_jal); 120 Ip_u2u1(_jalr); 121 Ip_u1(_jr); 122 Ip_u2s3u1(_lb); 123 Ip_u2s3u1(_lbu); 124 Ip_u2s3u1(_ld); 125 Ip_u3u1u2(_ldx); 126 Ip_u2s3u1(_lh); 127 Ip_u2s3u1(_lhu); 128 Ip_u2s3u1(_ll); 129 Ip_u2s3u1(_lld); 130 Ip_u1s2(_lui); 131 Ip_u2s3u1(_lw); 132 Ip_u2s3u1(_lwu); 133 Ip_u3u1u2(_lwx); 134 Ip_u1u2u3(_mfc0); 135 Ip_u1u2u3(_mfhc0); 136 Ip_u1(_mfhi); 137 Ip_u1(_mflo); 138 Ip_u3u1u2(_modu); 139 Ip_u3u1u2(_movn); 140 Ip_u3u1u2(_movz); 141 Ip_u1u2u3(_mtc0); 142 Ip_u1u2u3(_mthc0); 143 Ip_u1(_mthi); 144 Ip_u1(_mtlo); 145 Ip_u3u1u2(_mul); 146 Ip_u1u2(_multu); 147 Ip_u3u1u2(_mulu); 148 Ip_u3u1u2(_muhu); 149 Ip_u3u1u2(_nor); 150 Ip_u3u1u2(_or); 151 Ip_u2u1u3(_ori); 152 Ip_u2s3u1(_pref); 153 Ip_0(_rfe); 154 Ip_u2u1u3(_rotr); 155 Ip_u2s3u1(_sb); 156 Ip_u2s3u1(_sc); 157 Ip_u2s3u1(_scd); 158 Ip_u2s3u1(_sd); 159 Ip_u3u1u2(_seleqz); 160 Ip_u3u1u2(_selnez); 161 Ip_u2s3u1(_sh); 162 Ip_u2u1u3(_sll); 163 Ip_u3u2u1(_sllv); 164 Ip_s3s1s2(_slt); 165 Ip_u2u1s3(_slti); 166 Ip_u2u1s3(_sltiu); 167 Ip_u3u1u2(_sltu); 168 Ip_u2u1u3(_sra); 169 Ip_u3u2u1(_srav); 170 Ip_u2u1u3(_srl); 171 Ip_u3u2u1(_srlv); 172 Ip_u3u1u2(_subu); 173 Ip_u2s3u1(_sw); 174 Ip_u1(_sync); 175 Ip_u1(_syscall); 176 Ip_0(_tlbp); 177 Ip_0(_tlbr); 178 Ip_0(_tlbwi); 179 Ip_0(_tlbwr); 180 Ip_u1(_wait); 181 Ip_u2u1(_wsbh); 182 Ip_u3u1u2(_xor); 183 Ip_u2u1u3(_xori); 184 Ip_u2u1(_yield); 185 Ip_u1u2(_ldpte); 186 Ip_u2u1u3(_lddir); 187 188 /* Handle labels. */ 189 struct uasm_label { 190 u32 *addr; 191 int lab; 192 }; 193 194 void uasm_build_label(struct uasm_label **lab, u32 *addr, 195 int lid); 196 #ifdef CONFIG_64BIT 197 int uasm_in_compat_space_p(long addr); 198 #endif 199 int uasm_rel_hi(long val); 200 int uasm_rel_lo(long val); 201 void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr); 202 void UASM_i_LA(u32 **buf, unsigned int rs, long addr); 203 204 #define UASM_L_LA(lb) \ 205 static inline void uasm_l##lb(struct uasm_label **lab, u32 *addr) \ 206 { \ 207 uasm_build_label(lab, addr, label##lb); \ 208 } 209 210 /* convenience macros for instructions */ 211 #ifdef CONFIG_64BIT 212 # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val) 213 # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd) 214 # define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off) 215 # define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off) 216 # define UASM_i_LWX(buf, rs, rt, rd) uasm_i_ldx(buf, rs, rt, rd) 217 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd) 218 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd) 219 # define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_drotr(buf, rs, rt, sh) 220 # define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off) 221 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh) 222 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh) 223 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh) 224 # define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_dsrl_safe(buf, rs, rt, sh) 225 # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd) 226 # define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off) 227 #else 228 # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val) 229 # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd) 230 # define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off) 231 # define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off) 232 # define UASM_i_LWX(buf, rs, rt, rd) uasm_i_lwx(buf, rs, rt, rd) 233 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd) 234 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd) 235 # define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_rotr(buf, rs, rt, sh) 236 # define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off) 237 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh) 238 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh) 239 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) 240 # define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) 241 # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd) 242 # define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off) 243 #endif 244 245 #define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off) 246 #define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off) 247 #define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off) 248 #define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off) 249 #define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off) 250 #define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3) 251 #define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b) 252 #ifdef CONFIG_CPU_NOP_WORKAROUNDS 253 #define uasm_i_nop(buf) uasm_i_or(buf, 1, 1, 0) 254 #else 255 #define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0) 256 #endif 257 #define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1) 258 259 static inline void uasm_i_drotr_safe(u32 **p, unsigned int a1, 260 unsigned int a2, unsigned int a3) 261 { 262 if (a3 < 32) 263 uasm_i_drotr(p, a1, a2, a3); 264 else 265 uasm_i_drotr32(p, a1, a2, a3 - 32); 266 } 267 268 static inline void uasm_i_dsll_safe(u32 **p, unsigned int a1, 269 unsigned int a2, unsigned int a3) 270 { 271 if (a3 < 32) 272 uasm_i_dsll(p, a1, a2, a3); 273 else 274 uasm_i_dsll32(p, a1, a2, a3 - 32); 275 } 276 277 static inline void uasm_i_dsrl_safe(u32 **p, unsigned int a1, 278 unsigned int a2, unsigned int a3) 279 { 280 if (a3 < 32) 281 uasm_i_dsrl(p, a1, a2, a3); 282 else 283 uasm_i_dsrl32(p, a1, a2, a3 - 32); 284 } 285 286 static inline void uasm_i_dsra_safe(u32 **p, unsigned int a1, 287 unsigned int a2, unsigned int a3) 288 { 289 if (a3 < 32) 290 uasm_i_dsra(p, a1, a2, a3); 291 else 292 uasm_i_dsra32(p, a1, a2, a3 - 32); 293 } 294 295 /* Handle relocations. */ 296 struct uasm_reloc { 297 u32 *addr; 298 unsigned int type; 299 int lab; 300 }; 301 302 /* This is zero so we can use zeroed label arrays. */ 303 #define UASM_LABEL_INVALID 0 304 305 void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid); 306 void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab); 307 void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off); 308 void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off); 309 void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, 310 u32 *first, u32 *end, u32 *target); 311 int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr); 312 313 /* Convenience functions for labeled branches. */ 314 void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid); 315 void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg, 316 unsigned int bit, int lid); 317 void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg, 318 unsigned int bit, int lid); 319 void uasm_il_beq(u32 **p, struct uasm_reloc **r, unsigned int r1, 320 unsigned int r2, int lid); 321 void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 322 void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 323 void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 324 void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 325 void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 326 void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1, 327 unsigned int reg2, int lid); 328 void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 329 330 #endif /* __ASM_UASM_H */ 331