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 */ 10 11#include <linux/types.h> 12 13#ifdef CONFIG_EXPORT_UASM 14#include <linux/module.h> 15#define __uasminit 16#define __uasminitdata 17#define UASM_EXPORT_SYMBOL(sym) EXPORT_SYMBOL(sym) 18#else 19#define __uasminit __cpuinit 20#define __uasminitdata __cpuinitdata 21#define UASM_EXPORT_SYMBOL(sym) 22#endif 23 24#define Ip_u1u2u3(op) \ 25void __uasminit \ 26uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 27 28#define Ip_u2u1u3(op) \ 29void __uasminit \ 30uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 31 32#define Ip_u3u1u2(op) \ 33void __uasminit \ 34uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 35 36#define Ip_u1u2s3(op) \ 37void __uasminit \ 38uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) 39 40#define Ip_u2s3u1(op) \ 41void __uasminit \ 42uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c) 43 44#define Ip_u2u1s3(op) \ 45void __uasminit \ 46uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) 47 48#define Ip_u2u1msbu3(op) \ 49void __uasminit \ 50uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c, \ 51 unsigned int d) 52 53#define Ip_u1u2(op) \ 54void __uasminit uasm_i##op(u32 **buf, unsigned int a, unsigned int b) 55 56#define Ip_u1s2(op) \ 57void __uasminit uasm_i##op(u32 **buf, unsigned int a, signed int b) 58 59#define Ip_u1(op) void __uasminit uasm_i##op(u32 **buf, unsigned int a) 60 61#define Ip_0(op) void __uasminit uasm_i##op(u32 **buf) 62 63#define Ip_bit_extract(op) \ 64void __cpuinit \ 65uasm_i##op(u32 **buf, unsigned int a, unsigned int b, \ 66 unsigned int c, unsigned int d) 67 68#define Ip_bit_insert(op) \ 69void __cpuinit \ 70uasm_i##op(u32 **buf, unsigned int a, unsigned int b, \ 71 unsigned int c, unsigned int d) 72 73Ip_u2u1s3(_addiu); 74Ip_u3u1u2(_addu); 75Ip_u2u1u3(_andi); 76Ip_u3u1u2(_and); 77Ip_u1u2s3(_beq); 78Ip_u1u2s3(_beql); 79Ip_u1s2(_bgez); 80Ip_u1s2(_bgezl); 81Ip_u1s2(_bltz); 82Ip_u1s2(_bltzl); 83Ip_u1u2s3(_bne); 84Ip_u2s3u1(_cache); 85Ip_u1u2u3(_dmfc0); 86Ip_u1u2u3(_dmtc0); 87Ip_u2u1s3(_daddiu); 88Ip_u3u1u2(_daddu); 89Ip_u2u1u3(_dsll); 90Ip_u2u1u3(_dsll32); 91Ip_u2u1u3(_dsra); 92Ip_u2u1u3(_dsrl); 93Ip_u2u1u3(_dsrl32); 94Ip_u2u1u3(_drotr); 95Ip_u2u1u3(_drotr32); 96Ip_u3u1u2(_dsubu); 97Ip_0(_eret); 98Ip_0(_iret); 99Ip_u1(_j); 100Ip_u1(_jal); 101Ip_u1(_jr); 102Ip_u2s3u1(_ld); 103Ip_u2s3u1(_ll); 104Ip_u2s3u1(_lld); 105Ip_u1s2(_lui); 106Ip_u2s3u1(_lw); 107Ip_u1u2u3(_mfc0); 108Ip_u1u2u3(_mtc0); 109Ip_u2u1u3(_ori); 110Ip_u3u1u2(_or); 111Ip_u2s3u1(_pref); 112Ip_0(_rfe); 113Ip_u2s3u1(_sc); 114Ip_u2s3u1(_scd); 115Ip_u2s3u1(_sd); 116Ip_u2u1u3(_sll); 117Ip_u2u1u3(_sra); 118Ip_u2u1u3(_srl); 119Ip_u2u1u3(_rotr); 120Ip_u3u1u2(_subu); 121Ip_u2s3u1(_sw); 122Ip_0(_tlbp); 123Ip_0(_tlbr); 124Ip_0(_tlbwi); 125Ip_0(_tlbwr); 126Ip_u3u1u2(_xor); 127Ip_u2u1u3(_xori); 128Ip_bit_extract(_ext); 129Ip_bit_insert(_ins); 130Ip_u2u1msbu3(_dins); 131Ip_u2u1msbu3(_dinsm); 132Ip_u1(_syscall); 133Ip_u1u2s3(_bbit0); 134Ip_u1u2s3(_bbit1); 135Ip_u3u1u2(_lwx); 136Ip_u3u1u2(_ldx); 137 138/* Handle labels. */ 139struct uasm_label { 140 u32 *addr; 141 int lab; 142}; 143 144void __uasminit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid); 145#ifdef CONFIG_64BIT 146int uasm_in_compat_space_p(long addr); 147#endif 148int uasm_rel_hi(long val); 149int uasm_rel_lo(long val); 150void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr); 151void UASM_i_LA(u32 **buf, unsigned int rs, long addr); 152 153#define UASM_L_LA(lb) \ 154static inline void __uasminit uasm_l##lb(struct uasm_label **lab, u32 *addr) \ 155{ \ 156 uasm_build_label(lab, addr, label##lb); \ 157} 158 159/* convenience macros for instructions */ 160#ifdef CONFIG_64BIT 161# define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off) 162# define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off) 163# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh) 164# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh) 165# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh) 166# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_dsrl_safe(buf, rs, rt, sh) 167# define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_drotr(buf, rs, rt, sh) 168# define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd) 169# define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd) 170# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val) 171# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd) 172# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd) 173# define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off) 174# define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off) 175# define UASM_i_LWX(buf, rs, rt, rd) uasm_i_ldx(buf, rs, rt, rd) 176#else 177/* actually, the argument sequence is: rt, rs, pos, size. -- LY22 */ 178# define UASM_i_EXT(buf, rs, rt, size, pos) uasm_i_ext(buf, rs, rt, size, pos) 179# define UASM_i_INS(buf, rs, rt, size, pos) uasm_i_ins(buf, rs, rt, size, pos) 180# define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off) 181# define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off) 182# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh) 183# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh) 184# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) 185# define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) 186# define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_rotr(buf, rs, rt, sh) 187# define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd) 188# define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd) 189# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val) 190# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd) 191# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd) 192# define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off) 193# define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off) 194# define UASM_i_LWX(buf, rs, rt, rd) uasm_i_lwx(buf, rs, rt, rd) 195#endif 196 197#define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off) 198#define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off) 199#define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off) 200#define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off) 201#define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off) 202#define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b) 203#define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0) 204#define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1) 205#define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3) 206 207static inline void uasm_i_dsrl_safe(u32 **p, unsigned int a1, 208 unsigned int a2, unsigned int a3) 209{ 210 if (a3 < 32) 211 uasm_i_dsrl(p, a1, a2, a3); 212 else 213 uasm_i_dsrl32(p, a1, a2, a3 - 32); 214} 215 216static inline void uasm_i_drotr_safe(u32 **p, unsigned int a1, 217 unsigned int a2, unsigned int a3) 218{ 219 if (a3 < 32) 220 uasm_i_drotr(p, a1, a2, a3); 221 else 222 uasm_i_drotr32(p, a1, a2, a3 - 32); 223} 224 225static inline void uasm_i_dsll_safe(u32 **p, unsigned int a1, 226 unsigned int a2, unsigned int a3) 227{ 228 if (a3 < 32) 229 uasm_i_dsll(p, a1, a2, a3); 230 else 231 uasm_i_dsll32(p, a1, a2, a3 - 32); 232} 233 234/* Handle relocations. */ 235struct uasm_reloc { 236 u32 *addr; 237 unsigned int type; 238 int lab; 239}; 240 241/* This is zero so we can use zeroed label arrays. */ 242#define UASM_LABEL_INVALID 0 243 244void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid); 245void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab); 246void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off); 247void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off); 248void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, 249 u32 *first, u32 *end, u32 *target); 250int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr); 251 252/* Convenience functions for labeled branches. */ 253void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 254void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid); 255void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 256void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 257void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1, 258 unsigned int reg2, int lid); 259void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 260void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 261void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 262void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg, 263 unsigned int bit, int lid); 264void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg, 265 unsigned int bit, int lid); 266