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