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d16005f8 PC |
1 | /* |
2 | * Copyright (C) 2016 Paul Cercueil <paul@crapouillou.net> | |
3 | * | |
4 | * This library is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU Lesser General Public | |
6 | * License as published by the Free Software Foundation; either | |
7 | * version 2.1 of the License, or (at your option) any later version. | |
8 | * | |
9 | * This library is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | * Lesser General Public License for more details. | |
13 | */ | |
14 | ||
15 | #ifndef __LIGHTREC_PRIVATE_H__ | |
16 | #define __LIGHTREC_PRIVATE_H__ | |
17 | ||
18 | #include "config.h" | |
19 | #include "disassembler.h" | |
20 | #include "lightrec.h" | |
21 | ||
22 | #if ENABLE_THREADED_COMPILER | |
23 | #include <stdatomic.h> | |
24 | #endif | |
25 | ||
26 | #define ARRAY_SIZE(x) (sizeof(x) ? sizeof(x) / sizeof((x)[0]) : 0) | |
27 | #define BIT(x) (1 << (x)) | |
28 | ||
29 | #ifdef __GNUC__ | |
30 | # define likely(x) __builtin_expect(!!(x),1) | |
31 | # define unlikely(x) __builtin_expect(!!(x),0) | |
32 | #else | |
33 | # define likely(x) (x) | |
34 | # define unlikely(x) (x) | |
35 | #endif | |
36 | ||
37 | #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ | |
38 | # define LE32TOH(x) __builtin_bswap32(x) | |
39 | # define HTOLE32(x) __builtin_bswap32(x) | |
40 | # define LE16TOH(x) __builtin_bswap16(x) | |
41 | # define HTOLE16(x) __builtin_bswap16(x) | |
42 | #else | |
43 | # define LE32TOH(x) (x) | |
44 | # define HTOLE32(x) (x) | |
45 | # define LE16TOH(x) (x) | |
46 | # define HTOLE16(x) (x) | |
47 | #endif | |
48 | ||
49 | /* Flags for (struct block *)->flags */ | |
50 | #define BLOCK_NEVER_COMPILE BIT(0) | |
51 | #define BLOCK_SHOULD_RECOMPILE BIT(1) | |
52 | #define BLOCK_FULLY_TAGGED BIT(2) | |
53 | ||
54 | #define RAM_SIZE 0x200000 | |
55 | #define BIOS_SIZE 0x80000 | |
56 | ||
57 | #define CODE_LUT_SIZE ((RAM_SIZE + BIOS_SIZE) >> 2) | |
58 | ||
59 | /* Definition of jit_state_t (avoids inclusion of <lightning.h>) */ | |
60 | struct jit_node; | |
61 | struct jit_state; | |
62 | typedef struct jit_state jit_state_t; | |
63 | ||
64 | struct blockcache; | |
65 | struct recompiler; | |
66 | struct regcache; | |
67 | struct opcode; | |
68 | struct tinymm; | |
69 | ||
70 | struct block { | |
71 | jit_state_t *_jit; | |
72 | struct lightrec_state *state; | |
73 | struct opcode *opcode_list; | |
74 | void (*function)(void); | |
75 | u32 pc; | |
76 | u32 hash; | |
77 | #if ENABLE_THREADED_COMPILER | |
78 | atomic_flag op_list_freed; | |
79 | #endif | |
80 | unsigned int code_size; | |
81 | u16 flags; | |
82 | u16 nb_ops; | |
83 | const struct lightrec_mem_map *map; | |
84 | struct block *next; | |
85 | }; | |
86 | ||
87 | struct lightrec_branch { | |
88 | struct jit_node *branch; | |
89 | u32 target; | |
90 | }; | |
91 | ||
92 | struct lightrec_branch_target { | |
93 | struct jit_node *label; | |
94 | u32 offset; | |
95 | }; | |
96 | ||
97 | struct lightrec_state { | |
98 | u32 native_reg_cache[34]; | |
99 | u32 next_pc; | |
100 | u32 current_cycle; | |
101 | u32 target_cycle; | |
102 | u32 exit_flags; | |
103 | struct block *dispatcher, *rw_wrapper, *rw_generic_wrapper, | |
104 | *mfc_wrapper, *mtc_wrapper, *rfe_wrapper, *cp_wrapper, | |
105 | *syscall_wrapper, *break_wrapper; | |
106 | void *rw_func, *rw_generic_func, *mfc_func, *mtc_func, *rfe_func, | |
107 | *cp_func, *syscall_func, *break_func; | |
108 | struct jit_node *branches[512]; | |
109 | struct lightrec_branch local_branches[512]; | |
110 | struct lightrec_branch_target targets[512]; | |
111 | unsigned int nb_branches; | |
112 | unsigned int nb_local_branches; | |
113 | unsigned int nb_targets; | |
114 | struct tinymm *tinymm; | |
115 | struct blockcache *block_cache; | |
116 | struct regcache *reg_cache; | |
117 | struct recompiler *rec; | |
118 | void (*eob_wrapper_func)(void); | |
119 | void (*get_next_block)(void); | |
120 | struct lightrec_ops ops; | |
121 | unsigned int cycles; | |
122 | unsigned int nb_maps; | |
123 | const struct lightrec_mem_map *maps; | |
124 | uintptr_t offset_ram, offset_bios, offset_scratch; | |
125 | _Bool mirrors_mapped; | |
126 | _Bool invalidate_from_dma_only; | |
127 | void *code_lut[]; | |
128 | }; | |
129 | ||
130 | u32 lightrec_rw(struct lightrec_state *state, union code op, | |
131 | u32 addr, u32 data, u16 *flags); | |
132 | ||
133 | void lightrec_free_block(struct block *block); | |
134 | ||
135 | void remove_from_code_lut(struct blockcache *cache, struct block *block); | |
136 | ||
137 | static inline u32 kunseg(u32 addr) | |
138 | { | |
139 | if (unlikely(addr >= 0xa0000000)) | |
140 | return addr - 0xa0000000; | |
141 | else | |
142 | return addr &~ 0x80000000; | |
143 | } | |
144 | ||
145 | static inline u32 lut_offset(u32 pc) | |
146 | { | |
147 | if (pc & BIT(28)) | |
148 | return ((pc & (BIOS_SIZE - 1)) + RAM_SIZE) >> 2; // BIOS | |
149 | else | |
150 | return (pc & (RAM_SIZE - 1)) >> 2; // RAM | |
151 | } | |
152 | ||
153 | void lightrec_mtc(struct lightrec_state *state, union code op, u32 data); | |
154 | u32 lightrec_mfc(struct lightrec_state *state, union code op); | |
155 | ||
156 | union code lightrec_read_opcode(struct lightrec_state *state, u32 pc); | |
157 | ||
158 | struct block * lightrec_get_block(struct lightrec_state *state, u32 pc); | |
159 | int lightrec_compile_block(struct block *block); | |
160 | ||
161 | #endif /* __LIGHTREC_PRIVATE_H__ */ |