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 #define Ip_u1u2u3(op) \ 14 void __cpuinit \ 15 uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 16 17 #define Ip_u2u1u3(op) \ 18 void __cpuinit \ 19 uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 20 21 #define Ip_u3u1u2(op) \ 22 void __cpuinit \ 23 uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) 24 25 #define Ip_u1u2s3(op) \ 26 void __cpuinit \ 27 uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) 28 29 #define Ip_u2s3u1(op) \ 30 void __cpuinit \ 31 uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c) 32 33 #define Ip_u2u1s3(op) \ 34 void __cpuinit \ 35 uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) 36 37 #define Ip_u1u2(op) \ 38 void __cpuinit uasm_i##op(u32 **buf, unsigned int a, unsigned int b) 39 40 #define Ip_u1s2(op) \ 41 void __cpuinit uasm_i##op(u32 **buf, unsigned int a, signed int b) 42 43 #define Ip_u1(op) void __cpuinit uasm_i##op(u32 **buf, unsigned int a) 44 45 #define Ip_0(op) void __cpuinit uasm_i##op(u32 **buf) 46 47 Ip_u2u1s3(_addiu); 48 Ip_u3u1u2(_addu); 49 Ip_u2u1u3(_andi); 50 Ip_u3u1u2(_and); 51 Ip_u1u2s3(_beq); 52 Ip_u1u2s3(_beql); 53 Ip_u1s2(_bgez); 54 Ip_u1s2(_bgezl); 55 Ip_u1s2(_bltz); 56 Ip_u1s2(_bltzl); 57 Ip_u1u2s3(_bne); 58 Ip_u2s3u1(_cache); 59 Ip_u1u2u3(_dmfc0); 60 Ip_u1u2u3(_dmtc0); 61 Ip_u2u1s3(_daddiu); 62 Ip_u3u1u2(_daddu); 63 Ip_u2u1u3(_dsll); 64 Ip_u2u1u3(_dsll32); 65 Ip_u2u1u3(_dsra); 66 Ip_u2u1u3(_dsrl); 67 Ip_u2u1u3(_dsrl32); 68 Ip_u3u1u2(_dsubu); 69 Ip_0(_eret); 70 Ip_u1(_j); 71 Ip_u1(_jal); 72 Ip_u1(_jr); 73 Ip_u2s3u1(_ld); 74 Ip_u2s3u1(_ll); 75 Ip_u2s3u1(_lld); 76 Ip_u1s2(_lui); 77 Ip_u2s3u1(_lw); 78 Ip_u1u2u3(_mfc0); 79 Ip_u1u2u3(_mtc0); 80 Ip_u2u1u3(_ori); 81 Ip_u2s3u1(_pref); 82 Ip_0(_rfe); 83 Ip_u2s3u1(_sc); 84 Ip_u2s3u1(_scd); 85 Ip_u2s3u1(_sd); 86 Ip_u2u1u3(_sll); 87 Ip_u2u1u3(_sra); 88 Ip_u2u1u3(_srl); 89 Ip_u3u1u2(_subu); 90 Ip_u2s3u1(_sw); 91 Ip_0(_tlbp); 92 Ip_0(_tlbwi); 93 Ip_0(_tlbwr); 94 Ip_u3u1u2(_xor); 95 Ip_u2u1u3(_xori); 96 97 /* Handle labels. */ 98 struct uasm_label { 99 u32 *addr; 100 int lab; 101 }; 102 103 void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid); 104 #ifdef CONFIG_64BIT 105 int uasm_in_compat_space_p(long addr); 106 #endif 107 int uasm_rel_hi(long val); 108 int uasm_rel_lo(long val); 109 void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr); 110 void UASM_i_LA(u32 **buf, unsigned int rs, long addr); 111 112 #define UASM_L_LA(lb) \ 113 static inline void __cpuinit uasm_l##lb(struct uasm_label **lab, u32 *addr) \ 114 { \ 115 uasm_build_label(lab, addr, label##lb); \ 116 } 117 118 /* convenience macros for instructions */ 119 #ifdef CONFIG_64BIT 120 # define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off) 121 # define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off) 122 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh) 123 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh) 124 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh) 125 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd) 126 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd) 127 # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val) 128 # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd) 129 # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd) 130 # define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off) 131 # define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off) 132 #else 133 # define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off) 134 # define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off) 135 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh) 136 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh) 137 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) 138 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd) 139 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd) 140 # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val) 141 # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd) 142 # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd) 143 # define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off) 144 # define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off) 145 #endif 146 147 #define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off) 148 #define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off) 149 #define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off) 150 #define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off) 151 #define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off) 152 #define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b) 153 #define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0) 154 #define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1) 155 #define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3) 156 157 /* Handle relocations. */ 158 struct uasm_reloc { 159 u32 *addr; 160 unsigned int type; 161 int lab; 162 }; 163 164 /* This is zero so we can use zeroed label arrays. */ 165 #define UASM_LABEL_INVALID 0 166 167 void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid); 168 void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab); 169 void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off); 170 void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off); 171 void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, 172 u32 *first, u32 *end, u32 *target); 173 int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr); 174 175 /* Convenience functions for labeled branches. */ 176 void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 177 void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid); 178 void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 179 void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 180 void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1, 181 unsigned int reg2, int lid); 182 void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 183 void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 184 void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); 185