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TOMOYO Linux Cross Reference
Linux/arch/mips/mm/uasm.h

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  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_u3u1u2(_or);
 82 Ip_u2s3u1(_pref);
 83 Ip_0(_rfe);
 84 Ip_u2s3u1(_sc);
 85 Ip_u2s3u1(_scd);
 86 Ip_u2s3u1(_sd);
 87 Ip_u2u1u3(_sll);
 88 Ip_u2u1u3(_sra);
 89 Ip_u2u1u3(_srl);
 90 Ip_u3u1u2(_subu);
 91 Ip_u2s3u1(_sw);
 92 Ip_0(_tlbp);
 93 Ip_0(_tlbwi);
 94 Ip_0(_tlbwr);
 95 Ip_u3u1u2(_xor);
 96 Ip_u2u1u3(_xori);
 97 
 98 /* Handle labels. */
 99 struct uasm_label {
100         u32 *addr;
101         int lab;
102 };
103 
104 void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid);
105 #ifdef CONFIG_64BIT
106 int uasm_in_compat_space_p(long addr);
107 #endif
108 int uasm_rel_hi(long val);
109 int uasm_rel_lo(long val);
110 void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr);
111 void UASM_i_LA(u32 **buf, unsigned int rs, long addr);
112 
113 #define UASM_L_LA(lb)                                                   \
114 static inline void __cpuinit uasm_l##lb(struct uasm_label **lab, u32 *addr) \
115 {                                                                       \
116         uasm_build_label(lab, addr, label##lb);                         \
117 }
118 
119 /* convenience macros for instructions */
120 #ifdef CONFIG_64BIT
121 # define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off)
122 # define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off)
123 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh)
124 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh)
125 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh)
126 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd)
127 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd)
128 # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val)
129 # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd)
130 # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd)
131 # define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off)
132 # define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off)
133 #else
134 # define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off)
135 # define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off)
136 # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh)
137 # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh)
138 # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
139 # define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd)
140 # define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd)
141 # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val)
142 # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd)
143 # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd)
144 # define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off)
145 # define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off)
146 #endif
147 
148 #define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off)
149 #define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off)
150 #define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off)
151 #define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off)
152 #define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off)
153 #define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b)
154 #define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0)
155 #define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1)
156 #define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3)
157 
158 /* Handle relocations. */
159 struct uasm_reloc {
160         u32 *addr;
161         unsigned int type;
162         int lab;
163 };
164 
165 /* This is zero so we can use zeroed label arrays. */
166 #define UASM_LABEL_INVALID 0
167 
168 void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid);
169 void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab);
170 void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off);
171 void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off);
172 void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab,
173         u32 *first, u32 *end, u32 *target);
174 int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr);
175 
176 /* Convenience functions for labeled branches. */
177 void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
178 void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid);
179 void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
180 void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
181 void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1,
182                  unsigned int reg2, int lid);
183 void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
184 void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
185 void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
186 

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