release/src-rt-6.x/linux/linux-2.6/include/asm-mips/uasm.h

   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
  14 enum opcode {
  15         insn_invalid,
  16         insn_addu, insn_addiu, insn_and, insn_andi, insn_beq,
  17         insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl,
  18         insn_bne, insn_daddu, insn_daddiu, insn_dmfc0, insn_dmtc0,
  19         insn_dsll, insn_dsll32, insn_dsra, insn_dsrl, insn_dsrl32,
  20         insn_dsubu, insn_eret, insn_j, insn_jal, insn_jr, insn_ld,
  21         insn_ll, insn_lld, insn_lui, insn_lw, insn_mfc0, insn_mtc0,
  22         insn_or, insn_ori, insn_rfe, insn_sc, insn_scd, insn_sd, insn_sll,
  23         insn_sra, insn_srl, insn_subu, insn_sw, insn_tlbp, insn_tlbwi,
  24         insn_tlbwr, insn_xor, insn_xori,
  25         insn_syscall
  26 };
  27
  28 void __cpuinit build_insn(u32 **buf, enum opcode opc, ...);
  29
  30 #define I_u1u2u3(op)                                            \
  31         static inline void __cpuinit i##op(u32 **buf, unsigned int a,   \
  32                 unsigned int b, unsigned int c)                 \
  33         {                                                       \
  34                 build_insn(buf, insn##op, a, b, c);             \
  35         }
  36
  37 #define I_u2u1u3(op)                                            \
  38         static inline void __cpuinit i##op(u32 **buf, unsigned int a,   \
  39                 unsigned int b, unsigned int c)                 \
  40         {                                                       \
  41                 build_insn(buf, insn##op, b, a, c);             \
  42         }
  43
  44 #define I_u3u1u2(op)                                            \
  45         static inline void __cpuinit i##op(u32 **buf, unsigned int a,   \
  46                 unsigned int b, unsigned int c)                 \
  47         {                                                       \
  48                 build_insn(buf, insn##op, b, c, a);             \
  49         }
  50
  51 #define I_u1u2s3(op)                                            \
  52         static inline void __cpuinit i##op(u32 **buf, unsigned int a,   \
  53                 unsigned int b, signed int c)                   \
  54         {                                                       \
  55                 build_insn(buf, insn##op, a, b, c);             \
  56         }
  57
  58 #define I_u2s3u1(op)                                            \
  59         static inline void __cpuinit i##op(u32 **buf, unsigned int a,   \
  60                 signed int b, unsigned int c)                   \
  61         {                                                       \
  62                 build_insn(buf, insn##op, c, a, b);             \
  63         }
  64
  65 #define I_u2u1s3(op)                                            \
  66         static inline void __cpuinit i##op(u32 **buf, unsigned int a,   \
  67                 unsigned int b, signed int c)                   \
  68         {                                                       \
  69                 build_insn(buf, insn##op, b, a, c);             \
  70         }
  71
  72 #define I_u1u2(op)                                              \
  73         static inline void __cpuinit i##op(u32 **buf, unsigned int a,   \
  74                 unsigned int b)                                 \
  75         {                                                       \
  76                 build_insn(buf, insn##op, a, b);                \
  77         }
  78
  79 #define I_u1s2(op)                                              \
  80         static inline void __cpuinit i##op(u32 **buf, unsigned int a,   \
  81                 signed int b)                                   \
  82         {                                                       \
  83                 build_insn(buf, insn##op, a, b);                \
  84         }
  85
  86 #define I_u1(op)                                                \
  87         static inline void __cpuinit i##op(u32 **buf, unsigned int a)   \
  88         {                                                       \
  89                 build_insn(buf, insn##op, a);                   \
  90         }
  91
  92 #define I_0(op)                                                 \
  93         static inline void __cpuinit i##op(u32 **buf)           \
  94         {                                                       \
  95                 build_insn(buf, insn##op);                      \
  96         }
  97
  98 I_u2u1s3(_addiu);
  99 I_u3u1u2(_addu);
 100 I_u2u1u3(_andi);
 101 I_u3u1u2(_and);
 102 I_u1u2s3(_beq);
 103 I_u1u2s3(_beql);
 104 I_u1s2(_bgez);
 105 I_u1s2(_bgezl);
 106 I_u1s2(_bltz);
 107 I_u1s2(_bltzl);
 108 I_u1u2s3(_bne);
 109 I_u1u2u3(_dmfc0);
 110 I_u1u2u3(_dmtc0);
 111 I_u2u1s3(_daddiu);
 112 I_u3u1u2(_daddu);
 113 I_u2u1u3(_dsll);
 114 I_u2u1u3(_dsll32);
 115 I_u2u1u3(_dsra);
 116 I_u2u1u3(_dsrl);
 117 I_u2u1u3(_dsrl32);
 118 I_u3u1u2(_dsubu);
 119 I_0(_eret);
 120 I_u1(_j);
 121 I_u1(_jal);
 122 I_u1(_jr);
 123 I_u2s3u1(_ld);
 124 I_u2s3u1(_ll);
 125 I_u2s3u1(_lld);
 126 I_u1s2(_lui);
 127 I_u2s3u1(_lw);
 128 I_u1u2u3(_mfc0);
 129 I_u1u2u3(_mtc0);
 130 I_u2u1u3(_ori);
 131 I_u3u1u2(_or)
 132 I_0(_rfe);
 133 I_u2s3u1(_sc);
 134 I_u2s3u1(_scd);
 135 I_u2s3u1(_sd);
 136 I_u2u1u3(_sll);
 137 I_u2u1u3(_sra);
 138 I_u2u1u3(_srl);
 139 I_u3u1u2(_subu);
 140 I_u2s3u1(_sw);
 141 I_0(_tlbp);
 142 I_0(_tlbwi);
 143 I_0(_tlbwr);
 144 I_u3u1u2(_xor)
 145 I_u2u1u3(_xori);
 146 I_u1(_syscall);
 147
 148 /*
 149  * handling labels
 150  */
 151
 152 enum label_id {
 153         label_invalid,
 154         label_second_part,
 155         label_leave,
 156 #ifdef MODULE_START
 157         label_module_alloc,
 158 #endif
 159         label_vmalloc,
 160         label_vmalloc_done,
 161         label_tlbw_hazard,
 162         label_split,
 163         label_nopage_tlbl,
 164         label_nopage_tlbs,
 165         label_nopage_tlbm,
 166         label_smp_pgtable_change,
 167         label_r3000_write_probe_fail,
 168 };
 169
 170 struct label {
 171         u32 *addr;
 172         enum label_id lab;
 173 };
 174
 175 static __cpuinit void build_label(struct label **lab, u32 *addr,
 176                                enum label_id l)
 177 {
 178         (*lab)->addr = addr;
 179         (*lab)->lab = l;
 180         (*lab)++;
 181 }
 182
 183 #define L_LA(lb)                                                \
 184         static inline void l##lb(struct label **lab, u32 *addr) \
 185         {                                                       \
 186                 build_label(lab, addr, label##lb);              \
 187         }
 188
 189 L_LA(_second_part)
 190 L_LA(_leave)
 191 #ifdef MODULE_START
 192 L_LA(_module_alloc)
 193 #endif
 194 L_LA(_vmalloc)
 195 L_LA(_vmalloc_done)
 196 L_LA(_tlbw_hazard)
 197 L_LA(_split)
 198 L_LA(_nopage_tlbl)
 199 L_LA(_nopage_tlbs)
 200 L_LA(_nopage_tlbm)
 201 L_LA(_smp_pgtable_change)
 202 L_LA(_r3000_write_probe_fail)
 203
 204 /* convenience macros for instructions */
 205 #ifdef CONFIG_64BIT
 206 # define i_LW(buf, rs, rt, off) i_ld(buf, rs, rt, off)
 207 # define i_SW(buf, rs, rt, off) i_sd(buf, rs, rt, off)
 208 # define i_SLL(buf, rs, rt, sh) i_dsll(buf, rs, rt, sh)
 209 # define i_SRA(buf, rs, rt, sh) i_dsra(buf, rs, rt, sh)
 210 # define i_SRL(buf, rs, rt, sh) i_dsrl(buf, rs, rt, sh)
 211 # define i_MFC0(buf, rt, rd...) i_dmfc0(buf, rt, rd)
 212 # define i_MTC0(buf, rt, rd...) i_dmtc0(buf, rt, rd)
 213 # define i_ADDIU(buf, rs, rt, val) i_daddiu(buf, rs, rt, val)
 214 # define i_ADDU(buf, rs, rt, rd) i_daddu(buf, rs, rt, rd)
 215 # define i_SUBU(buf, rs, rt, rd) i_dsubu(buf, rs, rt, rd)
 216 # define i_LL(buf, rs, rt, off) i_lld(buf, rs, rt, off)
 217 # define i_SC(buf, rs, rt, off) i_scd(buf, rs, rt, off)
 218 #else
 219 # define i_LW(buf, rs, rt, off) i_lw(buf, rs, rt, off)
 220 # define i_SW(buf, rs, rt, off) i_sw(buf, rs, rt, off)
 221 # define i_SLL(buf, rs, rt, sh) i_sll(buf, rs, rt, sh)
 222 # define i_SRA(buf, rs, rt, sh) i_sra(buf, rs, rt, sh)
 223 # define i_SRL(buf, rs, rt, sh) i_srl(buf, rs, rt, sh)
 224 # define i_MFC0(buf, rt, rd...) i_mfc0(buf, rt, rd)
 225 # define i_MTC0(buf, rt, rd...) i_mtc0(buf, rt, rd)
 226 # define i_ADDIU(buf, rs, rt, val) i_addiu(buf, rs, rt, val)
 227 # define i_ADDU(buf, rs, rt, rd) i_addu(buf, rs, rt, rd)
 228 # define i_SUBU(buf, rs, rt, rd) i_subu(buf, rs, rt, rd)
 229 # define i_LL(buf, rs, rt, off) i_ll(buf, rs, rt, off)
 230 # define i_SC(buf, rs, rt, off) i_sc(buf, rs, rt, off)
 231 #endif
 232
 233 #define i_b(buf, off) i_beq(buf, 0, 0, off)
 234 #define i_beqz(buf, rs, off) i_beq(buf, rs, 0, off)
 235 #define i_beqzl(buf, rs, off) i_beql(buf, rs, 0, off)
 236 #define i_bnez(buf, rs, off) i_bne(buf, rs, 0, off)
 237 #define i_bnezl(buf, rs, off) i_bnel(buf, rs, 0, off)
 238 #define i_move(buf, a, b) i_ADDU(buf, a, 0, b)
 239 #define i_nop(buf) i_sll(buf, 0, 0, 0)
 240 #define i_ssnop(buf) i_sll(buf, 0, 0, 1)
 241 #define i_ehb(buf) i_sll(buf, 0, 0, 3)
 242