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(_ddiv); 89 Ip_u3u1u2(_ddiv_r6); 90 Ip_u1u2(_ddivu); 91 Ip_u3u1u2(_ddivu_r6); 92 Ip_u1(_di); 93 Ip_u2u1msbu3(_dins); 94 Ip_u2u1msbu3(_dinsm); 95 Ip_u2u1msbu3(_dinsu); 96 Ip_u1u2(_div); 97 Ip_u3u1u2(_div_r6); 98 Ip_u1u2(_divu); 99 Ip_u3u1u2(_divu_r6); 100 Ip_u1u2u3(_dmfc0); 101 Ip_u3u1u2(_dmod); 102 Ip_u3u1u2(_dmodu); 103 Ip_u1u2u3(_dmtc0); 104 Ip_u1u2(_dmultu); 105 Ip_u3u1u2(_dmulu); 106 Ip_u2u1u3(_drotr); 107 Ip_u2u1u3(_drotr32); 108 Ip_u2u1(_dsbh); 109 Ip_u2u1(_dshd); 110 Ip_u2u1u3(_dsll); 111 Ip_u2u1u3(_dsll32); 112 Ip_u3u2u1(_dsllv); 113 Ip_u2u1u3(_dsra); 114 Ip_u2u1u3(_dsra32); 115 Ip_u3u2u1(_dsrav); 116 Ip_u2u1u3(_dsrl); 117 Ip_u2u1u3(_dsrl32); 118 Ip_u3u2u1(_dsrlv); 119 Ip_u3u1u2(_dsubu); 120 Ip_0(_eret); 121 Ip_u2u1msbu3(_ext); 122 Ip_u2u1msbu3(_ins); 123 Ip_u1(_j); 124 Ip_u1(_jal); 125 Ip_u2u1(_jalr); 126 Ip_u1(_jr); 127 Ip_u2s3u1(_lb); 128 Ip_u2s3u1(_lbu); 129 Ip_u2s3u1(_ld); 130 Ip_u3u1u2(_ldx); 131 Ip_u2s3u1(_lh); 132 Ip_u2s3u1(_lhu); 133 Ip_u2s3u1(_ll); 134 Ip_u2s3u1(_lld); 135 Ip_u1s2(_lui); 136 Ip_u2s3u1(_lw); 137 Ip_u2s3u1(_lwu); 138 Ip_u3u1u2(_lwx); 139 Ip_u1u2u3(_mfc0); 140 Ip_u1u2u3(_mfhc0); 141 Ip_u1(_mfhi); 142 Ip_u1(_mflo); 143 Ip_u3u1u2(_mod); 144 Ip_u3u1u2(_modu); 145 Ip_u3u1u2(_movn); 146 Ip_u3u1u2(_movz); 147 Ip_u1u2u3(_mtc0); 148 Ip_u1u2u3(_mthc0); 149 Ip_u1(_mthi); 150 Ip_u1(_mtlo); 151 Ip_u3u1u2(_mul); 152 Ip_u1u2(_multu); 153 Ip_u3u1u2(_mulu); 154 Ip_u3u1u2(_muhu); 155 Ip_u3u1u2(_nor); 156 Ip_u3u1u2(_or); 157 Ip_u2u1u3(_ori); 158 Ip_u2s3u1(_pref); 159 Ip_0(_rfe); 160 Ip_u2u1u3(_rotr); 161 Ip_u2s3u1(_sb); 162 Ip_u2s3u1(_sc); 163 Ip_u2s3u1(_scd); 164 Ip_u2s3u1(_sd); 165 Ip_u2u1(_seb); 166 Ip_u2u1(_seh); 167 Ip_u3u1u2(_seleqz); 168 Ip_u3u1u2(_selnez); 169 Ip_u2s3u1(_sh); 170 Ip_u2u1u3(_sll); 171 Ip_u3u2u1(_sllv); 172 Ip_s3s1s2(_slt); 173 Ip_u2u1s3(_slti); 174 Ip_u2u1s3(_sltiu); 175 Ip_u3u1u2(_sltu); 176 Ip_u2u1u3(_sra); 177 Ip_u3u2u1(_srav); 178 Ip_u2u1u3(_srl); 179 Ip_u3u2u1(_srlv); 180 Ip_u3u1u2(_subu); 181 Ip_u2s3u1(_sw); 182 Ip_u1(_sync); 183 Ip_u1(_syscall); 184 Ip_0(_tlbp); 185 Ip_0(_tlbr); 186 Ip_0(_tlbwi); 187 Ip_0(_tlbwr); 188 Ip_u1(_wait); 189 Ip_u2u1(_wsbh); 190 Ip_u3u1u2(_xor); 191 Ip_u2u1u3(_xori); 192 Ip_u2u1(_yield); 193 Ip_u1u2(_ldpte); 194 Ip_u2u1u3(_lddir); 195 196 /* Handle labels. */ 197 struct uasm_label { 198 u32 *addr; 199 int lab; 200 }; 201 202 void uasm_build_label(struct uasm_label **lab, u32 *addr, 203 int lid); 204 int uasm_in_compat_space_p(long addr); 205 int uasm_rel_hi(long val); 206 int uasm_rel_lo(long val); 207 void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr); 208 void UASM_i_LA(u32 **buf, unsigned int rs, long addr); 209 210 #define UASM_L_LA(lb) \ 211 static inline void uasm_l##lb(struct uasm_label **lab, u32 *addr) \ 212 { \ 213 uasm_build_label(lab, addr, label##lb); \ 214 } 215 216 /* convenience macros for instructions */ 217 #ifdef CONFIG_64BIT 218 # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val) 219 # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd) 220 # define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off) 221 # define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off) 222 # define UASM_i_LWX(buf, rs, rt, rd) uasm_i_ldx(buf, rs, rt, rd) 223 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd) 224 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd) 225 # define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_drotr(buf, rs, rt, sh) 226 # define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off) 227 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh) 228 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh) 229 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh) 230 # define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_dsrl_safe(buf, rs, rt, sh) 231 # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd) 232 # define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off) 233 #else 234 # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val) 235 # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd) 236 # define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off) 237 # define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off) 238 # define UASM_i_LWX(buf, rs, rt, rd) uasm_i_lwx(buf, rs, rt, rd) 239 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd) 240 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd) 241 # define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_rotr(buf, rs, rt, sh) 242 # define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off) 243 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh) 244 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh) 245 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) 246 # define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) 247 # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd) 248 # define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off) 249 #endif 250 251 #define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off) 252 #define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off) 253 #define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off) 254 #define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off) 255 #define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off) 256 #define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3) 257 #define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b) 258 #ifdef CONFIG_CPU_NOP_WORKAROUNDS 259 #define uasm_i_nop(buf) uasm_i_or(buf, 1, 1, 0) 260 #else 261 #define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0) 262 #endif 263 #define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1) 264 265 static inline void uasm_i_drotr_safe(u32 **p, unsigned int a1, 266 unsigned int a2, unsigned int a3) 267 { 268 if (a3 < 32) 269 uasm_i_drotr(p, a1, a2, a3); 270 else 271 uasm_i_drotr32(p, a1, a2, a3 - 32); 272 } 273 274 static inline void uasm_i_dsll_safe(u32 **p, unsigned int a1, 275 unsigned int a2, unsigned int a3) 276 { 277 if (a3 < 32) 278 uasm_i_dsll(p, a1, a2, a3); 279 else 280 uasm_i_dsll32(p, a1, a2, a3 - 32); 281 } 282 283 static inline void uasm_i_dsrl_safe(u32 **p, unsigned int a1, 284 unsigned int a2, unsigned int a3) 285 { 286 if (a3 < 32) 287 uasm_i_dsrl(p, a1, a2, a3); 288 else 289 uasm_i_dsrl32(p, a1, a2, a3 - 32); 290 } 291 292 static inline void uasm_i_dsra_safe(u32 **p, unsigned int a1, 293 unsigned int a2, unsigned int a3) 294 { 295 if (a3 < 32) 296 uasm_i_dsra(p, a1, a2, a3); 297 else 298 uasm_i_dsra32(p, a1, a2, a3 - 32); 299 } 300 301 /* Handle relocations. */ 302 struct uasm_reloc { 303 u32 *addr; 304 unsigned int type; 305 int lab; 306 }; 307 308 /* This is zero so we can use zeroed label arrays. */ 309 #define UASM_LABEL_INVALID 0 310 311 void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid); 312 void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab); 313 void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off); 314 void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off); 315 void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, 316 u32 *first, u32 *end, u32 *target); 317 int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr); 318 319 /* Convenience functions for labeled branches. */ 320 void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid); 321 void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg, 322 unsigned int bit, int lid); 323 void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg, 324 unsigned int bit, int lid); 325 void uasm_il_beq(u32 **p, struct uasm_reloc **r, unsigned int r1, 326 unsigned int r2, int lid); 327 void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 328 void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 329 void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 330 void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 331 void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 332 void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1, 333 unsigned int reg2, int lid); 334 void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 335 336 #endif /* __ASM_UASM_H */ 337