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98fa08a5 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
d16005f8 | 2 | /* |
98fa08a5 | 3 | * Copyright (C) 2016-2021 Paul Cercueil <paul@crapouillou.net> |
d16005f8 PC |
4 | */ |
5 | ||
6 | #ifndef __LIGHTREC_PRIVATE_H__ | |
7 | #define __LIGHTREC_PRIVATE_H__ | |
8 | ||
02487de7 | 9 | #include "lightning-wrapper.h" |
98fa08a5 | 10 | #include "lightrec-config.h" |
d16005f8 PC |
11 | #include "disassembler.h" |
12 | #include "lightrec.h" | |
13 | ||
14 | #if ENABLE_THREADED_COMPILER | |
15 | #include <stdatomic.h> | |
16 | #endif | |
17 | ||
18 | #define ARRAY_SIZE(x) (sizeof(x) ? sizeof(x) / sizeof((x)[0]) : 0) | |
d16005f8 PC |
19 | |
20 | #ifdef __GNUC__ | |
21 | # define likely(x) __builtin_expect(!!(x),1) | |
22 | # define unlikely(x) __builtin_expect(!!(x),0) | |
23 | #else | |
24 | # define likely(x) (x) | |
25 | # define unlikely(x) (x) | |
26 | #endif | |
27 | ||
28 | #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ | |
29 | # define LE32TOH(x) __builtin_bswap32(x) | |
30 | # define HTOLE32(x) __builtin_bswap32(x) | |
31 | # define LE16TOH(x) __builtin_bswap16(x) | |
32 | # define HTOLE16(x) __builtin_bswap16(x) | |
33 | #else | |
34 | # define LE32TOH(x) (x) | |
35 | # define HTOLE32(x) (x) | |
36 | # define LE16TOH(x) (x) | |
37 | # define HTOLE16(x) (x) | |
38 | #endif | |
39 | ||
98fa08a5 PC |
40 | #if HAS_DEFAULT_ELM |
41 | #define SET_DEFAULT_ELM(table, value) [0 ... ARRAY_SIZE(table) - 1] = value | |
42 | #else | |
43 | #define SET_DEFAULT_ELM(table, value) [0] = NULL | |
44 | #endif | |
45 | ||
d16005f8 PC |
46 | /* Flags for (struct block *)->flags */ |
47 | #define BLOCK_NEVER_COMPILE BIT(0) | |
48 | #define BLOCK_SHOULD_RECOMPILE BIT(1) | |
49 | #define BLOCK_FULLY_TAGGED BIT(2) | |
a59e5536 | 50 | #define BLOCK_IS_DEAD BIT(3) |
98fa08a5 | 51 | #define BLOCK_IS_MEMSET BIT(4) |
d16005f8 PC |
52 | |
53 | #define RAM_SIZE 0x200000 | |
54 | #define BIOS_SIZE 0x80000 | |
55 | ||
56 | #define CODE_LUT_SIZE ((RAM_SIZE + BIOS_SIZE) >> 2) | |
57 | ||
98fa08a5 PC |
58 | #define REG_LO 32 |
59 | #define REG_HI 33 | |
60 | ||
d16005f8 PC |
61 | /* Definition of jit_state_t (avoids inclusion of <lightning.h>) */ |
62 | struct jit_node; | |
63 | struct jit_state; | |
64 | typedef struct jit_state jit_state_t; | |
65 | ||
66 | struct blockcache; | |
67 | struct recompiler; | |
68 | struct regcache; | |
69 | struct opcode; | |
70 | struct tinymm; | |
a59e5536 | 71 | struct reaper; |
d16005f8 PC |
72 | |
73 | struct block { | |
74 | jit_state_t *_jit; | |
d16005f8 PC |
75 | struct opcode *opcode_list; |
76 | void (*function)(void); | |
98fa08a5 PC |
77 | const u32 *code; |
78 | struct block *next; | |
d16005f8 PC |
79 | u32 pc; |
80 | u32 hash; | |
98fa08a5 PC |
81 | unsigned int code_size; |
82 | u16 nb_ops; | |
83 | u8 flags; | |
d16005f8 PC |
84 | #if ENABLE_THREADED_COMPILER |
85 | atomic_flag op_list_freed; | |
86 | #endif | |
d16005f8 PC |
87 | }; |
88 | ||
89 | struct lightrec_branch { | |
90 | struct jit_node *branch; | |
91 | u32 target; | |
92 | }; | |
93 | ||
94 | struct lightrec_branch_target { | |
95 | struct jit_node *label; | |
96 | u32 offset; | |
97 | }; | |
98 | ||
98fa08a5 PC |
99 | enum c_wrappers { |
100 | C_WRAPPER_RW, | |
101 | C_WRAPPER_RW_GENERIC, | |
98fa08a5 PC |
102 | C_WRAPPER_MTC, |
103 | C_WRAPPER_CP, | |
104 | C_WRAPPER_SYSCALL, | |
105 | C_WRAPPER_BREAK, | |
106 | C_WRAPPERS_COUNT, | |
107 | }; | |
108 | ||
109 | struct lightrec_cstate { | |
110 | struct lightrec_state *state; | |
111 | ||
d16005f8 PC |
112 | struct jit_node *branches[512]; |
113 | struct lightrec_branch local_branches[512]; | |
114 | struct lightrec_branch_target targets[512]; | |
115 | unsigned int nb_branches; | |
116 | unsigned int nb_local_branches; | |
117 | unsigned int nb_targets; | |
98fa08a5 PC |
118 | unsigned int cycles; |
119 | ||
120 | struct regcache *reg_cache; | |
121 | }; | |
122 | ||
123 | struct lightrec_state { | |
124 | struct lightrec_registers regs; | |
125 | u32 next_pc; | |
126 | u32 current_cycle; | |
127 | u32 target_cycle; | |
128 | u32 exit_flags; | |
129 | u32 old_cycle_counter; | |
22eee2ac | 130 | u32 c_wrapper_arg; |
98fa08a5 | 131 | struct block *dispatcher, *c_wrapper_block; |
fd58fa32 PC |
132 | void *c_wrappers[C_WRAPPERS_COUNT]; |
133 | void *wrappers_eps[C_WRAPPERS_COUNT]; | |
d16005f8 PC |
134 | struct tinymm *tinymm; |
135 | struct blockcache *block_cache; | |
d16005f8 | 136 | struct recompiler *rec; |
98fa08a5 | 137 | struct lightrec_cstate *cstate; |
a59e5536 | 138 | struct reaper *reaper; |
02487de7 | 139 | void *tlsf; |
d16005f8 | 140 | void (*eob_wrapper_func)(void); |
98fa08a5 | 141 | void (*memset_func)(void); |
d16005f8 PC |
142 | void (*get_next_block)(void); |
143 | struct lightrec_ops ops; | |
a59e5536 | 144 | unsigned int nb_precompile; |
d16005f8 PC |
145 | unsigned int nb_maps; |
146 | const struct lightrec_mem_map *maps; | |
147 | uintptr_t offset_ram, offset_bios, offset_scratch; | |
02487de7 | 148 | _Bool with_32bit_lut; |
d16005f8 PC |
149 | _Bool mirrors_mapped; |
150 | _Bool invalidate_from_dma_only; | |
151 | void *code_lut[]; | |
152 | }; | |
153 | ||
154 | u32 lightrec_rw(struct lightrec_state *state, union code op, | |
98fa08a5 PC |
155 | u32 addr, u32 data, u16 *flags, |
156 | struct block *block); | |
d16005f8 | 157 | |
98fa08a5 | 158 | void lightrec_free_block(struct lightrec_state *state, struct block *block); |
d16005f8 PC |
159 | |
160 | void remove_from_code_lut(struct blockcache *cache, struct block *block); | |
161 | ||
02487de7 PC |
162 | enum psx_map |
163 | lightrec_get_map_idx(struct lightrec_state *state, u32 kaddr); | |
164 | ||
98fa08a5 PC |
165 | const struct lightrec_mem_map * |
166 | lightrec_get_map(struct lightrec_state *state, void **host, u32 kaddr); | |
167 | ||
d16005f8 PC |
168 | static inline u32 kunseg(u32 addr) |
169 | { | |
170 | if (unlikely(addr >= 0xa0000000)) | |
171 | return addr - 0xa0000000; | |
172 | else | |
173 | return addr &~ 0x80000000; | |
174 | } | |
175 | ||
176 | static inline u32 lut_offset(u32 pc) | |
177 | { | |
178 | if (pc & BIT(28)) | |
179 | return ((pc & (BIOS_SIZE - 1)) + RAM_SIZE) >> 2; // BIOS | |
180 | else | |
181 | return (pc & (RAM_SIZE - 1)) >> 2; // RAM | |
182 | } | |
183 | ||
02487de7 PC |
184 | static inline _Bool is_big_endian(void) |
185 | { | |
186 | return __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__; | |
187 | } | |
188 | ||
189 | static inline _Bool lut_is_32bit(const struct lightrec_state *state) | |
190 | { | |
191 | return __WORDSIZE == 32 || | |
192 | (ENABLE_CODE_BUFFER && state->with_32bit_lut); | |
193 | } | |
194 | ||
195 | static inline size_t lut_elm_size(const struct lightrec_state *state) | |
196 | { | |
197 | return lut_is_32bit(state) ? 4 : sizeof(void *); | |
198 | } | |
199 | ||
200 | static inline void ** lut_address(struct lightrec_state *state, u32 offset) | |
201 | { | |
202 | if (lut_is_32bit(state)) | |
203 | return (void **) ((uintptr_t) state->code_lut + offset * 4); | |
204 | else | |
205 | return &state->code_lut[offset]; | |
206 | } | |
207 | ||
208 | static inline void * lut_read(struct lightrec_state *state, u32 offset) | |
209 | { | |
210 | void **lut_entry = lut_address(state, lut_offset(offset)); | |
211 | ||
212 | if (lut_is_32bit(state)) | |
213 | return (void *)(uintptr_t) *(u32 *) lut_entry; | |
214 | else | |
215 | return *lut_entry; | |
216 | } | |
217 | ||
218 | static inline void lut_write(struct lightrec_state *state, u32 offset, void *ptr) | |
219 | { | |
220 | void **lut_entry = lut_address(state, offset); | |
221 | ||
222 | if (lut_is_32bit(state)) | |
223 | *(u32 *) lut_entry = (u32)(uintptr_t) ptr; | |
224 | else | |
225 | *lut_entry = ptr; | |
226 | } | |
227 | ||
98fa08a5 PC |
228 | static inline u32 get_ds_pc(const struct block *block, u16 offset, s16 imm) |
229 | { | |
230 | u16 flags = block->opcode_list[offset].flags; | |
231 | ||
232 | offset += !!(OPT_SWITCH_DELAY_SLOTS && (flags & LIGHTREC_NO_DS)); | |
233 | ||
234 | return block->pc + (offset + imm << 2); | |
235 | } | |
236 | ||
237 | static inline u32 get_branch_pc(const struct block *block, u16 offset, s16 imm) | |
238 | { | |
239 | u16 flags = block->opcode_list[offset].flags; | |
240 | ||
241 | offset -= !!(OPT_SWITCH_DELAY_SLOTS && (flags & LIGHTREC_NO_DS)); | |
242 | ||
243 | return block->pc + (offset + imm << 2); | |
244 | } | |
245 | ||
d16005f8 PC |
246 | void lightrec_mtc(struct lightrec_state *state, union code op, u32 data); |
247 | u32 lightrec_mfc(struct lightrec_state *state, union code op); | |
98fa08a5 PC |
248 | void lightrec_rfe(struct lightrec_state *state); |
249 | void lightrec_cp(struct lightrec_state *state, union code op); | |
250 | ||
251 | struct lightrec_cstate * lightrec_create_cstate(struct lightrec_state *state); | |
252 | void lightrec_free_cstate(struct lightrec_cstate *cstate); | |
d16005f8 PC |
253 | |
254 | union code lightrec_read_opcode(struct lightrec_state *state, u32 pc); | |
255 | ||
256 | struct block * lightrec_get_block(struct lightrec_state *state, u32 pc); | |
98fa08a5 PC |
257 | int lightrec_compile_block(struct lightrec_cstate *cstate, struct block *block); |
258 | void lightrec_free_opcode_list(struct lightrec_state *state, struct block *block); | |
259 | ||
260 | unsigned int lightrec_cycles_of_opcode(union code code); | |
261 | ||
262 | static inline u8 get_mult_div_lo(union code c) | |
263 | { | |
264 | return (OPT_FLAG_MULT_DIV && c.r.rd) ? c.r.rd : REG_LO; | |
265 | } | |
266 | ||
267 | static inline u8 get_mult_div_hi(union code c) | |
268 | { | |
269 | return (OPT_FLAG_MULT_DIV && c.r.imm) ? c.r.imm : REG_HI; | |
270 | } | |
d16005f8 PC |
271 | |
272 | #endif /* __LIGHTREC_PRIVATE_H__ */ |