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98fa08a5 | 1 | // SPDX-License-Identifier: LGPL-2.1-or-later |
d16005f8 | 2 | /* |
98fa08a5 | 3 | * Copyright (C) 2014-2021 Paul Cercueil <paul@crapouillou.net> |
d16005f8 PC |
4 | */ |
5 | ||
6 | #include "blockcache.h" | |
d16005f8 PC |
7 | #include "debug.h" |
8 | #include "disassembler.h" | |
9 | #include "emitter.h" | |
10 | #include "interpreter.h" | |
98fa08a5 PC |
11 | #include "lightrec-config.h" |
12 | #include "lightning-wrapper.h" | |
d16005f8 PC |
13 | #include "lightrec.h" |
14 | #include "memmanager.h" | |
a59e5536 | 15 | #include "reaper.h" |
d16005f8 PC |
16 | #include "recompiler.h" |
17 | #include "regcache.h" | |
18 | #include "optimizer.h" | |
19 | ||
20 | #include <errno.h> | |
98fa08a5 | 21 | #include <inttypes.h> |
d16005f8 PC |
22 | #include <limits.h> |
23 | #if ENABLE_THREADED_COMPILER | |
24 | #include <stdatomic.h> | |
25 | #endif | |
26 | #include <stdbool.h> | |
27 | #include <stddef.h> | |
28 | #include <string.h> | |
29 | #if ENABLE_TINYMM | |
30 | #include <tinymm.h> | |
31 | #endif | |
32 | ||
33 | #define GENMASK(h, l) \ | |
34 | (((uintptr_t)-1 << (l)) & ((uintptr_t)-1 >> (__WORDSIZE - 1 - (h)))) | |
35 | ||
36 | static struct block * lightrec_precompile_block(struct lightrec_state *state, | |
37 | u32 pc); | |
98fa08a5 PC |
38 | static bool lightrec_block_is_fully_tagged(const struct block *block); |
39 | ||
40 | static void lightrec_mtc2(struct lightrec_state *state, u8 reg, u32 data); | |
41 | static u32 lightrec_mfc2(struct lightrec_state *state, u8 reg); | |
d16005f8 | 42 | |
a59e5536 | 43 | static void lightrec_default_sb(struct lightrec_state *state, u32 opcode, |
44 | void *host, u32 addr, u8 data) | |
45 | { | |
46 | *(u8 *)host = data; | |
47 | ||
48 | if (!state->invalidate_from_dma_only) | |
49 | lightrec_invalidate(state, addr, 1); | |
50 | } | |
51 | ||
52 | static void lightrec_default_sh(struct lightrec_state *state, u32 opcode, | |
53 | void *host, u32 addr, u16 data) | |
54 | { | |
55 | *(u16 *)host = HTOLE16(data); | |
56 | ||
57 | if (!state->invalidate_from_dma_only) | |
58 | lightrec_invalidate(state, addr, 2); | |
59 | } | |
60 | ||
61 | static void lightrec_default_sw(struct lightrec_state *state, u32 opcode, | |
62 | void *host, u32 addr, u32 data) | |
63 | { | |
64 | *(u32 *)host = HTOLE32(data); | |
65 | ||
66 | if (!state->invalidate_from_dma_only) | |
67 | lightrec_invalidate(state, addr, 4); | |
68 | } | |
69 | ||
70 | static u8 lightrec_default_lb(struct lightrec_state *state, | |
71 | u32 opcode, void *host, u32 addr) | |
72 | { | |
73 | return *(u8 *)host; | |
74 | } | |
75 | ||
76 | static u16 lightrec_default_lh(struct lightrec_state *state, | |
77 | u32 opcode, void *host, u32 addr) | |
78 | { | |
79 | return LE16TOH(*(u16 *)host); | |
80 | } | |
81 | ||
82 | static u32 lightrec_default_lw(struct lightrec_state *state, | |
83 | u32 opcode, void *host, u32 addr) | |
84 | { | |
85 | return LE32TOH(*(u32 *)host); | |
86 | } | |
87 | ||
88 | static const struct lightrec_mem_map_ops lightrec_default_ops = { | |
89 | .sb = lightrec_default_sb, | |
90 | .sh = lightrec_default_sh, | |
91 | .sw = lightrec_default_sw, | |
92 | .lb = lightrec_default_lb, | |
93 | .lh = lightrec_default_lh, | |
94 | .lw = lightrec_default_lw, | |
95 | }; | |
96 | ||
98fa08a5 PC |
97 | static void __segfault_cb(struct lightrec_state *state, u32 addr, |
98 | const struct block *block) | |
d16005f8 PC |
99 | { |
100 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_SEGFAULT); | |
101 | pr_err("Segmentation fault in recompiled code: invalid " | |
102 | "load/store at address 0x%08x\n", addr); | |
98fa08a5 PC |
103 | if (block) |
104 | pr_err("Was executing block PC 0x%08x\n", block->pc); | |
d16005f8 PC |
105 | } |
106 | ||
a59e5536 | 107 | static void lightrec_swl(struct lightrec_state *state, |
108 | const struct lightrec_mem_map_ops *ops, | |
109 | u32 opcode, void *host, u32 addr, u32 data) | |
d16005f8 | 110 | { |
a59e5536 | 111 | unsigned int shift = addr & 0x3; |
112 | unsigned int mask = GENMASK(31, (shift + 1) * 8); | |
113 | u32 old_data; | |
114 | ||
115 | /* Align to 32 bits */ | |
116 | addr &= ~3; | |
117 | host = (void *)((uintptr_t)host & ~3); | |
118 | ||
119 | old_data = ops->lw(state, opcode, host, addr); | |
120 | ||
121 | data = (data >> ((3 - shift) * 8)) | (old_data & mask); | |
122 | ||
123 | ops->sw(state, opcode, host, addr, data); | |
124 | } | |
125 | ||
126 | static void lightrec_swr(struct lightrec_state *state, | |
127 | const struct lightrec_mem_map_ops *ops, | |
128 | u32 opcode, void *host, u32 addr, u32 data) | |
129 | { | |
130 | unsigned int shift = addr & 0x3; | |
131 | unsigned int mask = (1 << (shift * 8)) - 1; | |
132 | u32 old_data; | |
133 | ||
134 | /* Align to 32 bits */ | |
135 | addr &= ~3; | |
136 | host = (void *)((uintptr_t)host & ~3); | |
137 | ||
138 | old_data = ops->lw(state, opcode, host, addr); | |
139 | ||
140 | data = (data << (shift * 8)) | (old_data & mask); | |
141 | ||
142 | ops->sw(state, opcode, host, addr, data); | |
143 | } | |
144 | ||
145 | static void lightrec_swc2(struct lightrec_state *state, union code op, | |
146 | const struct lightrec_mem_map_ops *ops, | |
147 | void *host, u32 addr) | |
148 | { | |
98fa08a5 | 149 | u32 data = lightrec_mfc2(state, op.i.rt); |
a59e5536 | 150 | |
151 | ops->sw(state, op.opcode, host, addr, data); | |
152 | } | |
153 | ||
154 | static u32 lightrec_lwl(struct lightrec_state *state, | |
155 | const struct lightrec_mem_map_ops *ops, | |
156 | u32 opcode, void *host, u32 addr, u32 data) | |
157 | { | |
158 | unsigned int shift = addr & 0x3; | |
159 | unsigned int mask = (1 << (24 - shift * 8)) - 1; | |
160 | u32 old_data; | |
161 | ||
162 | /* Align to 32 bits */ | |
163 | addr &= ~3; | |
164 | host = (void *)((uintptr_t)host & ~3); | |
165 | ||
166 | old_data = ops->lw(state, opcode, host, addr); | |
167 | ||
168 | return (data & mask) | (old_data << (24 - shift * 8)); | |
169 | } | |
170 | ||
171 | static u32 lightrec_lwr(struct lightrec_state *state, | |
172 | const struct lightrec_mem_map_ops *ops, | |
173 | u32 opcode, void *host, u32 addr, u32 data) | |
174 | { | |
175 | unsigned int shift = addr & 0x3; | |
176 | unsigned int mask = GENMASK(31, 32 - shift * 8); | |
177 | u32 old_data; | |
178 | ||
179 | /* Align to 32 bits */ | |
180 | addr &= ~3; | |
181 | host = (void *)((uintptr_t)host & ~3); | |
182 | ||
183 | old_data = ops->lw(state, opcode, host, addr); | |
184 | ||
185 | return (data & mask) | (old_data >> (shift * 8)); | |
186 | } | |
187 | ||
188 | static void lightrec_lwc2(struct lightrec_state *state, union code op, | |
189 | const struct lightrec_mem_map_ops *ops, | |
190 | void *host, u32 addr) | |
191 | { | |
192 | u32 data = ops->lw(state, op.opcode, host, addr); | |
193 | ||
98fa08a5 | 194 | lightrec_mtc2(state, op.i.rt, data); |
d16005f8 PC |
195 | } |
196 | ||
197 | static void lightrec_invalidate_map(struct lightrec_state *state, | |
98fa08a5 | 198 | const struct lightrec_mem_map *map, u32 addr, u32 len) |
d16005f8 | 199 | { |
98fa08a5 PC |
200 | if (map == &state->maps[PSX_MAP_KERNEL_USER_RAM]) { |
201 | memset(&state->code_lut[lut_offset(addr)], 0, | |
202 | ((len + 3) / 4) * sizeof(void *)); | |
203 | } | |
d16005f8 PC |
204 | } |
205 | ||
98fa08a5 PC |
206 | const struct lightrec_mem_map * |
207 | lightrec_get_map(struct lightrec_state *state, void **host, u32 kaddr) | |
d16005f8 | 208 | { |
98fa08a5 | 209 | const struct lightrec_mem_map *map; |
d16005f8 | 210 | unsigned int i; |
98fa08a5 | 211 | u32 addr; |
d16005f8 PC |
212 | |
213 | for (i = 0; i < state->nb_maps; i++) { | |
98fa08a5 | 214 | const struct lightrec_mem_map *mapi = &state->maps[i]; |
d16005f8 | 215 | |
98fa08a5 PC |
216 | if (kaddr >= mapi->pc && kaddr < mapi->pc + mapi->length) { |
217 | map = mapi; | |
218 | break; | |
219 | } | |
d16005f8 PC |
220 | } |
221 | ||
98fa08a5 PC |
222 | if (i == state->nb_maps) |
223 | return NULL; | |
224 | ||
225 | addr = kaddr - map->pc; | |
226 | ||
227 | while (map->mirror_of) | |
228 | map = map->mirror_of; | |
229 | ||
230 | if (host) | |
231 | *host = map->address + addr; | |
232 | ||
233 | return map; | |
d16005f8 PC |
234 | } |
235 | ||
236 | u32 lightrec_rw(struct lightrec_state *state, union code op, | |
98fa08a5 | 237 | u32 addr, u32 data, u16 *flags, struct block *block) |
d16005f8 PC |
238 | { |
239 | const struct lightrec_mem_map *map; | |
a59e5536 | 240 | const struct lightrec_mem_map_ops *ops; |
98fa08a5 | 241 | u32 opcode = op.opcode; |
a59e5536 | 242 | void *host; |
d16005f8 PC |
243 | |
244 | addr += (s16) op.i.imm; | |
d16005f8 | 245 | |
98fa08a5 | 246 | map = lightrec_get_map(state, &host, kunseg(addr)); |
d16005f8 | 247 | if (!map) { |
98fa08a5 | 248 | __segfault_cb(state, addr, block); |
d16005f8 PC |
249 | return 0; |
250 | } | |
251 | ||
d16005f8 PC |
252 | if (unlikely(map->ops)) { |
253 | if (flags) | |
254 | *flags |= LIGHTREC_HW_IO; | |
255 | ||
a59e5536 | 256 | ops = map->ops; |
257 | } else { | |
258 | if (flags) | |
259 | *flags |= LIGHTREC_DIRECT_IO; | |
d16005f8 | 260 | |
a59e5536 | 261 | ops = &lightrec_default_ops; |
262 | } | |
d16005f8 PC |
263 | |
264 | switch (op.i.op) { | |
265 | case OP_SB: | |
a59e5536 | 266 | ops->sb(state, opcode, host, addr, (u8) data); |
d16005f8 PC |
267 | return 0; |
268 | case OP_SH: | |
a59e5536 | 269 | ops->sh(state, opcode, host, addr, (u16) data); |
d16005f8 PC |
270 | return 0; |
271 | case OP_SWL: | |
a59e5536 | 272 | lightrec_swl(state, ops, opcode, host, addr, data); |
d16005f8 PC |
273 | return 0; |
274 | case OP_SWR: | |
a59e5536 | 275 | lightrec_swr(state, ops, opcode, host, addr, data); |
d16005f8 PC |
276 | return 0; |
277 | case OP_SW: | |
a59e5536 | 278 | ops->sw(state, opcode, host, addr, data); |
d16005f8 PC |
279 | return 0; |
280 | case OP_SWC2: | |
a59e5536 | 281 | lightrec_swc2(state, op, ops, host, addr); |
d16005f8 PC |
282 | return 0; |
283 | case OP_LB: | |
a59e5536 | 284 | return (s32) (s8) ops->lb(state, opcode, host, addr); |
d16005f8 | 285 | case OP_LBU: |
a59e5536 | 286 | return ops->lb(state, opcode, host, addr); |
d16005f8 | 287 | case OP_LH: |
a59e5536 | 288 | return (s32) (s16) ops->lh(state, opcode, host, addr); |
d16005f8 | 289 | case OP_LHU: |
a59e5536 | 290 | return ops->lh(state, opcode, host, addr); |
d16005f8 | 291 | case OP_LWC2: |
a59e5536 | 292 | lightrec_lwc2(state, op, ops, host, addr); |
d16005f8 | 293 | return 0; |
a59e5536 | 294 | case OP_LWL: |
295 | return lightrec_lwl(state, ops, opcode, host, addr, data); | |
296 | case OP_LWR: | |
297 | return lightrec_lwr(state, ops, opcode, host, addr, data); | |
d16005f8 PC |
298 | case OP_LW: |
299 | default: | |
a59e5536 | 300 | return ops->lw(state, opcode, host, addr); |
d16005f8 PC |
301 | } |
302 | } | |
303 | ||
304 | static void lightrec_rw_helper(struct lightrec_state *state, | |
98fa08a5 PC |
305 | union code op, u16 *flags, |
306 | struct block *block) | |
d16005f8 | 307 | { |
98fa08a5 PC |
308 | u32 ret = lightrec_rw(state, op, state->regs.gpr[op.i.rs], |
309 | state->regs.gpr[op.i.rt], flags, block); | |
d16005f8 PC |
310 | |
311 | switch (op.i.op) { | |
312 | case OP_LB: | |
313 | case OP_LBU: | |
314 | case OP_LH: | |
315 | case OP_LHU: | |
316 | case OP_LWL: | |
317 | case OP_LWR: | |
318 | case OP_LW: | |
319 | if (op.i.rt) | |
98fa08a5 | 320 | state->regs.gpr[op.i.rt] = ret; |
d16005f8 PC |
321 | default: /* fall-through */ |
322 | break; | |
323 | } | |
324 | } | |
325 | ||
326 | static void lightrec_rw_cb(struct lightrec_state *state, union code op) | |
327 | { | |
98fa08a5 | 328 | lightrec_rw_helper(state, op, NULL, NULL); |
d16005f8 PC |
329 | } |
330 | ||
98fa08a5 | 331 | static void lightrec_rw_generic_cb(struct lightrec_state *state, u32 arg) |
d16005f8 | 332 | { |
98fa08a5 PC |
333 | struct block *block; |
334 | struct opcode *op; | |
335 | bool was_tagged; | |
336 | u16 offset = (u16)arg; | |
337 | ||
338 | block = lightrec_find_block_from_lut(state->block_cache, | |
339 | arg >> 16, state->next_pc); | |
340 | if (unlikely(!block)) { | |
341 | pr_err("rw_generic: No block found in LUT for PC 0x%x offset 0x%x\n", | |
342 | state->next_pc, offset); | |
343 | return; | |
344 | } | |
345 | ||
346 | op = &block->opcode_list[offset]; | |
347 | was_tagged = op->flags & (LIGHTREC_HW_IO | LIGHTREC_DIRECT_IO); | |
d16005f8 | 348 | |
98fa08a5 | 349 | lightrec_rw_helper(state, op->c, &op->flags, block); |
d16005f8 PC |
350 | |
351 | if (!was_tagged) { | |
98fa08a5 PC |
352 | pr_debug("Opcode of block at PC 0x%08x has been tagged - flag " |
353 | "for recompilation\n", block->pc); | |
d16005f8 | 354 | |
a59e5536 | 355 | block->flags |= BLOCK_SHOULD_RECOMPILE; |
d16005f8 PC |
356 | } |
357 | } | |
358 | ||
98fa08a5 | 359 | static u32 clamp_s32(s32 val, s32 min, s32 max) |
d16005f8 | 360 | { |
98fa08a5 PC |
361 | return val < min ? min : val > max ? max : val; |
362 | } | |
d16005f8 | 363 | |
98fa08a5 PC |
364 | static u32 lightrec_mfc2(struct lightrec_state *state, u8 reg) |
365 | { | |
366 | s16 gteir1, gteir2, gteir3; | |
367 | ||
368 | switch (reg) { | |
369 | case 1: | |
370 | case 3: | |
371 | case 5: | |
372 | case 8: | |
373 | case 9: | |
374 | case 10: | |
375 | case 11: | |
376 | return (s32)(s16) state->regs.cp2d[reg]; | |
377 | case 7: | |
378 | case 16: | |
379 | case 17: | |
380 | case 18: | |
381 | case 19: | |
382 | return (u16) state->regs.cp2d[reg]; | |
383 | case 28: | |
384 | case 29: | |
385 | gteir1 = (s16) state->regs.cp2d[9]; | |
386 | gteir2 = (s16) state->regs.cp2d[10]; | |
387 | gteir3 = (s16) state->regs.cp2d[11]; | |
388 | ||
389 | return clamp_s32(gteir1 >> 7, 0, 0x1f) << 0 | | |
390 | clamp_s32(gteir2 >> 7, 0, 0x1f) << 5 | | |
391 | clamp_s32(gteir3 >> 7, 0, 0x1f) << 10; | |
392 | case 15: | |
393 | reg = 14; | |
394 | default: /* fall-through */ | |
395 | return state->regs.cp2d[reg]; | |
396 | } | |
397 | } | |
d16005f8 | 398 | |
98fa08a5 PC |
399 | u32 lightrec_mfc(struct lightrec_state *state, union code op) |
400 | { | |
401 | if (op.i.op == OP_CP0) | |
402 | return state->regs.cp0[op.r.rd]; | |
403 | else if (op.r.rs == OP_CP2_BASIC_MFC2) | |
404 | return lightrec_mfc2(state, op.r.rd); | |
d16005f8 | 405 | else |
98fa08a5 | 406 | return state->regs.cp2c[op.r.rd]; |
d16005f8 PC |
407 | } |
408 | ||
409 | static void lightrec_mfc_cb(struct lightrec_state *state, union code op) | |
410 | { | |
411 | u32 rt = lightrec_mfc(state, op); | |
412 | ||
413 | if (op.r.rt) | |
98fa08a5 | 414 | state->regs.gpr[op.r.rt] = rt; |
d16005f8 PC |
415 | } |
416 | ||
98fa08a5 | 417 | static void lightrec_mtc0(struct lightrec_state *state, u8 reg, u32 data) |
d16005f8 | 418 | { |
98fa08a5 PC |
419 | u32 status, cause; |
420 | ||
421 | switch (reg) { | |
422 | case 1: | |
423 | case 4: | |
424 | case 8: | |
425 | case 14: | |
426 | case 15: | |
427 | /* Those registers are read-only */ | |
428 | return; | |
429 | default: /* fall-through */ | |
430 | break; | |
431 | } | |
d16005f8 | 432 | |
98fa08a5 PC |
433 | if (reg == 12) { |
434 | status = state->regs.cp0[12]; | |
d16005f8 | 435 | |
98fa08a5 PC |
436 | if (status & ~data & BIT(16)) { |
437 | state->ops.enable_ram(state, true); | |
438 | lightrec_invalidate_all(state); | |
439 | } else if (~status & data & BIT(16)) { | |
440 | state->ops.enable_ram(state, false); | |
441 | } | |
442 | } | |
443 | ||
444 | state->regs.cp0[reg] = data; | |
445 | ||
446 | if (reg == 12 || reg == 13) { | |
447 | cause = state->regs.cp0[13]; | |
448 | status = state->regs.cp0[12]; | |
449 | ||
450 | if (!!(status & cause & 0x300) & status) | |
451 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT); | |
452 | } | |
453 | } | |
454 | ||
455 | static u32 count_leading_bits(s32 data) | |
456 | { | |
98fa08a5 PC |
457 | u32 cnt = 33; |
458 | ||
de742fa0 PC |
459 | #ifdef __has_builtin |
460 | #if __has_builtin(__builtin_clrsb) | |
461 | return 1 + __builtin_clrsb(data); | |
462 | #endif | |
463 | #endif | |
464 | ||
98fa08a5 PC |
465 | data = (data ^ (data >> 31)) << 1; |
466 | ||
467 | do { | |
468 | cnt -= 1; | |
469 | data >>= 1; | |
470 | } while (data); | |
471 | ||
472 | return cnt; | |
98fa08a5 PC |
473 | } |
474 | ||
475 | static void lightrec_mtc2(struct lightrec_state *state, u8 reg, u32 data) | |
476 | { | |
477 | switch (reg) { | |
478 | case 15: | |
479 | state->regs.cp2d[12] = state->regs.cp2d[13]; | |
480 | state->regs.cp2d[13] = state->regs.cp2d[14]; | |
481 | state->regs.cp2d[14] = data; | |
482 | break; | |
483 | case 28: | |
484 | state->regs.cp2d[9] = (data << 7) & 0xf80; | |
485 | state->regs.cp2d[10] = (data << 2) & 0xf80; | |
486 | state->regs.cp2d[11] = (data >> 3) & 0xf80; | |
487 | break; | |
488 | case 31: | |
489 | return; | |
490 | case 30: | |
491 | state->regs.cp2d[31] = count_leading_bits((s32) data); | |
492 | default: /* fall-through */ | |
493 | state->regs.cp2d[reg] = data; | |
494 | break; | |
495 | } | |
496 | } | |
d16005f8 | 497 | |
98fa08a5 PC |
498 | static void lightrec_ctc2(struct lightrec_state *state, u8 reg, u32 data) |
499 | { | |
500 | switch (reg) { | |
501 | case 4: | |
502 | case 12: | |
503 | case 20: | |
504 | case 26: | |
505 | case 27: | |
506 | case 29: | |
507 | case 30: | |
508 | data = (s32)(s16) data; | |
509 | break; | |
510 | case 31: | |
511 | data = (data & 0x7ffff000) | !!(data & 0x7f87e000) << 31; | |
512 | default: /* fall-through */ | |
513 | break; | |
514 | } | |
515 | ||
516 | state->regs.cp2c[reg] = data; | |
517 | } | |
518 | ||
519 | void lightrec_mtc(struct lightrec_state *state, union code op, u32 data) | |
520 | { | |
521 | if (op.i.op == OP_CP0) | |
522 | lightrec_mtc0(state, op.r.rd, data); | |
523 | else if (op.r.rs == OP_CP2_BASIC_CTC2) | |
524 | lightrec_ctc2(state, op.r.rd, data); | |
525 | else | |
526 | lightrec_mtc2(state, op.r.rd, data); | |
d16005f8 PC |
527 | } |
528 | ||
529 | static void lightrec_mtc_cb(struct lightrec_state *state, union code op) | |
530 | { | |
98fa08a5 | 531 | lightrec_mtc(state, op, state->regs.gpr[op.r.rt]); |
d16005f8 PC |
532 | } |
533 | ||
98fa08a5 | 534 | void lightrec_rfe(struct lightrec_state *state) |
d16005f8 PC |
535 | { |
536 | u32 status; | |
537 | ||
538 | /* Read CP0 Status register (r12) */ | |
98fa08a5 | 539 | status = state->regs.cp0[12]; |
d16005f8 PC |
540 | |
541 | /* Switch the bits */ | |
542 | status = ((status & 0x3c) >> 2) | (status & ~0xf); | |
543 | ||
544 | /* Write it back */ | |
98fa08a5 | 545 | lightrec_mtc0(state, 12, status); |
d16005f8 PC |
546 | } |
547 | ||
98fa08a5 | 548 | void lightrec_cp(struct lightrec_state *state, union code op) |
d16005f8 | 549 | { |
98fa08a5 PC |
550 | if (op.i.op == OP_CP0) { |
551 | pr_err("Invalid CP opcode to coprocessor #0\n"); | |
552 | return; | |
553 | } | |
d16005f8 | 554 | |
98fa08a5 | 555 | (*state->ops.cop2_op)(state, op.opcode); |
d16005f8 PC |
556 | } |
557 | ||
558 | static void lightrec_syscall_cb(struct lightrec_state *state, union code op) | |
559 | { | |
560 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_SYSCALL); | |
561 | } | |
562 | ||
563 | static void lightrec_break_cb(struct lightrec_state *state, union code op) | |
564 | { | |
565 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_BREAK); | |
566 | } | |
567 | ||
568 | struct block * lightrec_get_block(struct lightrec_state *state, u32 pc) | |
569 | { | |
570 | struct block *block = lightrec_find_block(state->block_cache, pc); | |
571 | ||
98fa08a5 | 572 | if (block && lightrec_block_is_outdated(state, block)) { |
d16005f8 PC |
573 | pr_debug("Block at PC 0x%08x is outdated!\n", block->pc); |
574 | ||
575 | /* Make sure the recompiler isn't processing the block we'll | |
576 | * destroy */ | |
577 | if (ENABLE_THREADED_COMPILER) | |
578 | lightrec_recompiler_remove(state->rec, block); | |
579 | ||
580 | lightrec_unregister_block(state->block_cache, block); | |
a59e5536 | 581 | remove_from_code_lut(state->block_cache, block); |
98fa08a5 | 582 | lightrec_free_block(state, block); |
d16005f8 PC |
583 | block = NULL; |
584 | } | |
585 | ||
586 | if (!block) { | |
587 | block = lightrec_precompile_block(state, pc); | |
588 | if (!block) { | |
589 | pr_err("Unable to recompile block at PC 0x%x\n", pc); | |
590 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_SEGFAULT); | |
591 | return NULL; | |
592 | } | |
593 | ||
594 | lightrec_register_block(state->block_cache, block); | |
595 | } | |
596 | ||
597 | return block; | |
598 | } | |
599 | ||
600 | static void * get_next_block_func(struct lightrec_state *state, u32 pc) | |
601 | { | |
602 | struct block *block; | |
603 | bool should_recompile; | |
604 | void *func; | |
605 | ||
606 | for (;;) { | |
607 | func = state->code_lut[lut_offset(pc)]; | |
608 | if (func && func != state->get_next_block) | |
98fa08a5 | 609 | break; |
d16005f8 PC |
610 | |
611 | block = lightrec_get_block(state, pc); | |
612 | ||
613 | if (unlikely(!block)) | |
98fa08a5 PC |
614 | break; |
615 | ||
616 | if (OPT_REPLACE_MEMSET && (block->flags & BLOCK_IS_MEMSET)) { | |
617 | func = state->memset_func; | |
618 | break; | |
619 | } | |
d16005f8 | 620 | |
a59e5536 | 621 | should_recompile = block->flags & BLOCK_SHOULD_RECOMPILE && |
622 | !(block->flags & BLOCK_IS_DEAD); | |
d16005f8 PC |
623 | |
624 | if (unlikely(should_recompile)) { | |
a59e5536 | 625 | pr_debug("Block at PC 0x%08x should recompile\n", pc); |
d16005f8 | 626 | |
d16005f8 | 627 | lightrec_unregister(MEM_FOR_CODE, block->code_size); |
a59e5536 | 628 | |
629 | if (ENABLE_THREADED_COMPILER) | |
630 | lightrec_recompiler_add(state->rec, block); | |
631 | else | |
98fa08a5 | 632 | lightrec_compile_block(state->cstate, block); |
d16005f8 PC |
633 | } |
634 | ||
635 | if (ENABLE_THREADED_COMPILER && likely(!should_recompile)) | |
98fa08a5 | 636 | func = lightrec_recompiler_run_first_pass(state, block, &pc); |
d16005f8 PC |
637 | else |
638 | func = block->function; | |
639 | ||
640 | if (likely(func)) | |
98fa08a5 | 641 | break; |
d16005f8 | 642 | |
98fa08a5 PC |
643 | if (unlikely(block->flags & BLOCK_NEVER_COMPILE)) { |
644 | pc = lightrec_emulate_block(state, block, pc); | |
645 | ||
646 | } else if (!ENABLE_THREADED_COMPILER) { | |
647 | /* Block wasn't compiled yet - run the interpreter */ | |
648 | if (block->flags & BLOCK_FULLY_TAGGED) | |
649 | pr_debug("Block fully tagged, skipping first pass\n"); | |
650 | else if (ENABLE_FIRST_PASS && likely(!should_recompile)) | |
651 | pc = lightrec_emulate_block(state, block, pc); | |
d16005f8 | 652 | |
d16005f8 | 653 | /* Then compile it using the profiled data */ |
98fa08a5 PC |
654 | lightrec_compile_block(state->cstate, block); |
655 | } else { | |
656 | lightrec_recompiler_add(state->rec, block); | |
d16005f8 PC |
657 | } |
658 | ||
659 | if (state->exit_flags != LIGHTREC_EXIT_NORMAL || | |
98fa08a5 PC |
660 | state->current_cycle >= state->target_cycle) |
661 | break; | |
d16005f8 | 662 | } |
d16005f8 | 663 | |
98fa08a5 PC |
664 | state->next_pc = pc; |
665 | return func; | |
d16005f8 PC |
666 | } |
667 | ||
668 | static s32 c_function_wrapper(struct lightrec_state *state, s32 cycles_delta, | |
98fa08a5 PC |
669 | void (*f)(struct lightrec_state *, u32 d), |
670 | u32 d) | |
d16005f8 PC |
671 | { |
672 | state->current_cycle = state->target_cycle - cycles_delta; | |
673 | ||
98fa08a5 | 674 | (*f)(state, d); |
d16005f8 PC |
675 | |
676 | return state->target_cycle - state->current_cycle; | |
677 | } | |
678 | ||
98fa08a5 | 679 | static struct block * generate_wrapper(struct lightrec_state *state) |
d16005f8 PC |
680 | { |
681 | struct block *block; | |
682 | jit_state_t *_jit; | |
683 | unsigned int i; | |
684 | int stack_ptr; | |
685 | jit_word_t code_size; | |
686 | jit_node_t *to_tramp, *to_fn_epilog; | |
687 | ||
688 | block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block)); | |
689 | if (!block) | |
690 | goto err_no_mem; | |
691 | ||
692 | _jit = jit_new_state(); | |
693 | if (!_jit) | |
694 | goto err_free_block; | |
695 | ||
696 | jit_name("RW wrapper"); | |
697 | jit_note(__FILE__, __LINE__); | |
698 | ||
699 | /* Wrapper entry point */ | |
700 | jit_prolog(); | |
701 | ||
702 | stack_ptr = jit_allocai(sizeof(uintptr_t) * NUM_TEMPS); | |
703 | ||
704 | for (i = 0; i < NUM_TEMPS; i++) | |
705 | jit_stxi(stack_ptr + i * sizeof(uintptr_t), JIT_FP, JIT_R(i)); | |
706 | ||
707 | /* Jump to the trampoline */ | |
708 | to_tramp = jit_jmpi(); | |
709 | ||
710 | /* The trampoline will jump back here */ | |
711 | to_fn_epilog = jit_label(); | |
712 | ||
713 | for (i = 0; i < NUM_TEMPS; i++) | |
714 | jit_ldxi(JIT_R(i), JIT_FP, stack_ptr + i * sizeof(uintptr_t)); | |
715 | ||
716 | jit_ret(); | |
717 | jit_epilog(); | |
718 | ||
719 | /* Trampoline entry point. | |
720 | * The sole purpose of the trampoline is to cheese Lightning not to | |
721 | * save/restore the callee-saved register LIGHTREC_REG_CYCLE, since we | |
722 | * do want to return to the caller with this register modified. */ | |
723 | jit_prolog(); | |
724 | jit_tramp(256); | |
725 | jit_patch(to_tramp); | |
726 | ||
727 | jit_prepare(); | |
728 | jit_pushargr(LIGHTREC_REG_STATE); | |
729 | jit_pushargr(LIGHTREC_REG_CYCLE); | |
d16005f8 | 730 | jit_pushargr(JIT_R0); |
98fa08a5 PC |
731 | jit_pushargr(JIT_R1); |
732 | jit_finishi(c_function_wrapper); | |
d16005f8 | 733 | jit_retval_i(LIGHTREC_REG_CYCLE); |
d16005f8 PC |
734 | |
735 | jit_patch_at(jit_jmpi(), to_fn_epilog); | |
736 | jit_epilog(); | |
737 | ||
d16005f8 PC |
738 | block->_jit = _jit; |
739 | block->function = jit_emit(); | |
740 | block->opcode_list = NULL; | |
741 | block->flags = 0; | |
742 | block->nb_ops = 0; | |
743 | ||
744 | jit_get_code(&code_size); | |
745 | lightrec_register(MEM_FOR_CODE, code_size); | |
746 | ||
747 | block->code_size = code_size; | |
748 | ||
749 | if (ENABLE_DISASSEMBLER) { | |
750 | pr_debug("Wrapper block:\n"); | |
751 | jit_disassemble(); | |
752 | } | |
753 | ||
754 | jit_clear_state(); | |
755 | return block; | |
756 | ||
757 | err_free_block: | |
758 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); | |
759 | err_no_mem: | |
760 | pr_err("Unable to compile wrapper: Out of memory\n"); | |
761 | return NULL; | |
762 | } | |
763 | ||
98fa08a5 PC |
764 | static u32 lightrec_memset(struct lightrec_state *state) |
765 | { | |
766 | u32 kunseg_pc = kunseg(state->regs.gpr[4]); | |
767 | void *host; | |
768 | const struct lightrec_mem_map *map = lightrec_get_map(state, &host, kunseg_pc); | |
769 | u32 length = state->regs.gpr[5] * 4; | |
770 | ||
771 | if (!map) { | |
772 | pr_err("Unable to find memory map for memset target address " | |
773 | "0x%x\n", kunseg_pc); | |
774 | return 0; | |
775 | } | |
776 | ||
777 | pr_debug("Calling host memset, PC 0x%x (host address 0x%" PRIxPTR ") for %u bytes\n", | |
778 | kunseg_pc, (uintptr_t)host, length); | |
779 | memset(host, 0, length); | |
780 | ||
781 | if (!state->invalidate_from_dma_only) | |
782 | lightrec_invalidate_map(state, map, kunseg_pc, length); | |
783 | ||
784 | /* Rough estimation of the number of cycles consumed */ | |
785 | return 8 + 5 * (length + 3 / 4); | |
786 | } | |
787 | ||
d16005f8 PC |
788 | static struct block * generate_dispatcher(struct lightrec_state *state) |
789 | { | |
790 | struct block *block; | |
791 | jit_state_t *_jit; | |
98fa08a5 | 792 | jit_node_t *to_end, *to_c, *loop, *addr, *addr2, *addr3; |
d16005f8 PC |
793 | unsigned int i; |
794 | u32 offset, ram_len; | |
795 | jit_word_t code_size; | |
796 | ||
797 | block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block)); | |
798 | if (!block) | |
799 | goto err_no_mem; | |
800 | ||
801 | _jit = jit_new_state(); | |
802 | if (!_jit) | |
803 | goto err_free_block; | |
804 | ||
805 | jit_name("dispatcher"); | |
806 | jit_note(__FILE__, __LINE__); | |
807 | ||
808 | jit_prolog(); | |
809 | jit_frame(256); | |
810 | ||
811 | jit_getarg(JIT_R0, jit_arg()); | |
d16005f8 | 812 | jit_getarg_i(LIGHTREC_REG_CYCLE, jit_arg()); |
d16005f8 PC |
813 | |
814 | /* Force all callee-saved registers to be pushed on the stack */ | |
815 | for (i = 0; i < NUM_REGS; i++) | |
816 | jit_movr(JIT_V(i), JIT_V(i)); | |
817 | ||
818 | /* Pass lightrec_state structure to blocks, using the last callee-saved | |
819 | * register that Lightning provides */ | |
820 | jit_movi(LIGHTREC_REG_STATE, (intptr_t) state); | |
821 | ||
822 | loop = jit_label(); | |
823 | ||
824 | /* Call the block's code */ | |
825 | jit_jmpr(JIT_R0); | |
826 | ||
98fa08a5 PC |
827 | if (OPT_REPLACE_MEMSET) { |
828 | /* Blocks will jump here when they need to call | |
829 | * lightrec_memset() */ | |
830 | addr3 = jit_indirect(); | |
831 | ||
832 | jit_prepare(); | |
833 | jit_pushargr(LIGHTREC_REG_STATE); | |
834 | jit_finishi(lightrec_memset); | |
835 | ||
836 | jit_ldxi_ui(JIT_V0, LIGHTREC_REG_STATE, | |
837 | offsetof(struct lightrec_state, regs.gpr[31])); | |
838 | ||
839 | jit_retval(JIT_R0); | |
840 | jit_subr(LIGHTREC_REG_CYCLE, LIGHTREC_REG_CYCLE, JIT_R0); | |
841 | } | |
842 | ||
d16005f8 PC |
843 | /* The block will jump here, with the number of cycles remaining in |
844 | * LIGHTREC_REG_CYCLE */ | |
845 | addr2 = jit_indirect(); | |
846 | ||
98fa08a5 PC |
847 | /* Store back the next_pc to the lightrec_state structure */ |
848 | offset = offsetof(struct lightrec_state, next_pc); | |
849 | jit_stxi_i(offset, LIGHTREC_REG_STATE, JIT_V0); | |
850 | ||
d16005f8 PC |
851 | /* Jump to end if state->target_cycle < state->current_cycle */ |
852 | to_end = jit_blei(LIGHTREC_REG_CYCLE, 0); | |
853 | ||
854 | /* Convert next PC to KUNSEG and avoid mirrors */ | |
855 | ram_len = state->maps[PSX_MAP_KERNEL_USER_RAM].length; | |
856 | jit_andi(JIT_R0, JIT_V0, 0x10000000 | (ram_len - 1)); | |
857 | to_c = jit_bgei(JIT_R0, ram_len); | |
858 | ||
859 | /* Fast path: code is running from RAM, use the code LUT */ | |
98fa08a5 PC |
860 | if (__WORDSIZE == 64) |
861 | jit_lshi(JIT_R0, JIT_R0, 1); | |
d16005f8 PC |
862 | jit_addr(JIT_R0, JIT_R0, LIGHTREC_REG_STATE); |
863 | jit_ldxi(JIT_R0, JIT_R0, offsetof(struct lightrec_state, code_lut)); | |
864 | ||
865 | /* If we get non-NULL, loop */ | |
866 | jit_patch_at(jit_bnei(JIT_R0, 0), loop); | |
867 | ||
868 | /* Slow path: call C function get_next_block_func() */ | |
869 | jit_patch(to_c); | |
870 | ||
98fa08a5 | 871 | if (ENABLE_FIRST_PASS || OPT_DETECT_IMPOSSIBLE_BRANCHES) { |
d16005f8 PC |
872 | /* We may call the interpreter - update state->current_cycle */ |
873 | jit_ldxi_i(JIT_R2, LIGHTREC_REG_STATE, | |
874 | offsetof(struct lightrec_state, target_cycle)); | |
875 | jit_subr(JIT_R1, JIT_R2, LIGHTREC_REG_CYCLE); | |
876 | jit_stxi_i(offsetof(struct lightrec_state, current_cycle), | |
877 | LIGHTREC_REG_STATE, JIT_R1); | |
878 | } | |
879 | ||
880 | /* The code LUT will be set to this address when the block at the target | |
881 | * PC has been preprocessed but not yet compiled by the threaded | |
882 | * recompiler */ | |
883 | addr = jit_indirect(); | |
884 | ||
885 | /* Get the next block */ | |
886 | jit_prepare(); | |
887 | jit_pushargr(LIGHTREC_REG_STATE); | |
888 | jit_pushargr(JIT_V0); | |
889 | jit_finishi(&get_next_block_func); | |
890 | jit_retval(JIT_R0); | |
891 | ||
98fa08a5 | 892 | if (ENABLE_FIRST_PASS || OPT_DETECT_IMPOSSIBLE_BRANCHES) { |
d16005f8 PC |
893 | /* The interpreter may have updated state->current_cycle and |
894 | * state->target_cycle - recalc the delta */ | |
895 | jit_ldxi_i(JIT_R1, LIGHTREC_REG_STATE, | |
896 | offsetof(struct lightrec_state, current_cycle)); | |
897 | jit_ldxi_i(JIT_R2, LIGHTREC_REG_STATE, | |
898 | offsetof(struct lightrec_state, target_cycle)); | |
899 | jit_subr(LIGHTREC_REG_CYCLE, JIT_R2, JIT_R1); | |
900 | } | |
901 | ||
902 | /* If we get non-NULL, loop */ | |
903 | jit_patch_at(jit_bnei(JIT_R0, 0), loop); | |
904 | ||
d16005f8 PC |
905 | /* When exiting, the recompiled code will jump to that address */ |
906 | jit_note(__FILE__, __LINE__); | |
907 | jit_patch(to_end); | |
908 | ||
d16005f8 PC |
909 | jit_retr(LIGHTREC_REG_CYCLE); |
910 | jit_epilog(); | |
911 | ||
d16005f8 PC |
912 | block->_jit = _jit; |
913 | block->function = jit_emit(); | |
914 | block->opcode_list = NULL; | |
915 | block->flags = 0; | |
916 | block->nb_ops = 0; | |
917 | ||
918 | jit_get_code(&code_size); | |
919 | lightrec_register(MEM_FOR_CODE, code_size); | |
920 | ||
921 | block->code_size = code_size; | |
922 | ||
923 | state->eob_wrapper_func = jit_address(addr2); | |
98fa08a5 PC |
924 | if (OPT_REPLACE_MEMSET) |
925 | state->memset_func = jit_address(addr3); | |
d16005f8 PC |
926 | state->get_next_block = jit_address(addr); |
927 | ||
928 | if (ENABLE_DISASSEMBLER) { | |
929 | pr_debug("Dispatcher block:\n"); | |
930 | jit_disassemble(); | |
931 | } | |
932 | ||
933 | /* We're done! */ | |
934 | jit_clear_state(); | |
935 | return block; | |
936 | ||
937 | err_free_block: | |
938 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); | |
939 | err_no_mem: | |
940 | pr_err("Unable to compile dispatcher: Out of memory\n"); | |
941 | return NULL; | |
942 | } | |
943 | ||
944 | union code lightrec_read_opcode(struct lightrec_state *state, u32 pc) | |
945 | { | |
98fa08a5 | 946 | void *host; |
d16005f8 | 947 | |
98fa08a5 | 948 | lightrec_get_map(state, &host, kunseg(pc)); |
d16005f8 | 949 | |
98fa08a5 PC |
950 | const u32 *code = (u32 *)host; |
951 | return (union code) *code; | |
952 | } | |
d16005f8 | 953 | |
98fa08a5 PC |
954 | unsigned int lightrec_cycles_of_opcode(union code code) |
955 | { | |
956 | return 2; | |
957 | } | |
d16005f8 | 958 | |
98fa08a5 PC |
959 | void lightrec_free_opcode_list(struct lightrec_state *state, struct block *block) |
960 | { | |
961 | lightrec_free(state, MEM_FOR_IR, | |
962 | sizeof(*block->opcode_list) * block->nb_ops, | |
963 | block->opcode_list); | |
964 | } | |
965 | ||
966 | static unsigned int lightrec_get_mips_block_len(const u32 *src) | |
967 | { | |
968 | unsigned int i; | |
969 | union code c; | |
970 | ||
971 | for (i = 1; ; i++) { | |
972 | c.opcode = LE32TOH(*src++); | |
973 | ||
974 | if (is_syscall(c)) | |
975 | return i; | |
976 | ||
977 | if (is_unconditional_jump(c)) | |
978 | return i + 1; | |
979 | } | |
980 | } | |
981 | ||
982 | static struct opcode * lightrec_disassemble(struct lightrec_state *state, | |
983 | const u32 *src, unsigned int *len) | |
984 | { | |
985 | struct opcode *list; | |
986 | unsigned int i, length; | |
987 | ||
988 | length = lightrec_get_mips_block_len(src); | |
989 | ||
990 | list = lightrec_malloc(state, MEM_FOR_IR, sizeof(*list) * length); | |
991 | if (!list) { | |
992 | pr_err("Unable to allocate memory\n"); | |
993 | return NULL; | |
994 | } | |
995 | ||
996 | for (i = 0; i < length; i++) { | |
997 | list[i].opcode = LE32TOH(src[i]); | |
998 | list[i].flags = 0; | |
999 | } | |
1000 | ||
1001 | *len = length * sizeof(u32); | |
1002 | ||
1003 | return list; | |
d16005f8 PC |
1004 | } |
1005 | ||
1006 | static struct block * lightrec_precompile_block(struct lightrec_state *state, | |
1007 | u32 pc) | |
1008 | { | |
1009 | struct opcode *list; | |
1010 | struct block *block; | |
98fa08a5 PC |
1011 | void *host; |
1012 | const struct lightrec_mem_map *map = lightrec_get_map(state, &host, kunseg(pc)); | |
1013 | const u32 *code = (u32 *) host; | |
d16005f8 | 1014 | unsigned int length; |
98fa08a5 | 1015 | bool fully_tagged; |
d16005f8 PC |
1016 | |
1017 | if (!map) | |
1018 | return NULL; | |
1019 | ||
d16005f8 PC |
1020 | block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block)); |
1021 | if (!block) { | |
1022 | pr_err("Unable to recompile block: Out of memory\n"); | |
1023 | return NULL; | |
1024 | } | |
1025 | ||
1026 | list = lightrec_disassemble(state, code, &length); | |
1027 | if (!list) { | |
1028 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); | |
1029 | return NULL; | |
1030 | } | |
1031 | ||
1032 | block->pc = pc; | |
d16005f8 PC |
1033 | block->_jit = NULL; |
1034 | block->function = NULL; | |
1035 | block->opcode_list = list; | |
98fa08a5 | 1036 | block->code = code; |
d16005f8 PC |
1037 | block->next = NULL; |
1038 | block->flags = 0; | |
1039 | block->code_size = 0; | |
1040 | #if ENABLE_THREADED_COMPILER | |
1041 | block->op_list_freed = (atomic_flag)ATOMIC_FLAG_INIT; | |
1042 | #endif | |
1043 | block->nb_ops = length / sizeof(u32); | |
1044 | ||
98fa08a5 | 1045 | lightrec_optimize(state, block); |
d16005f8 PC |
1046 | |
1047 | length = block->nb_ops * sizeof(u32); | |
1048 | ||
1049 | lightrec_register(MEM_FOR_MIPS_CODE, length); | |
1050 | ||
1051 | if (ENABLE_DISASSEMBLER) { | |
98fa08a5 PC |
1052 | pr_debug("Disassembled block at PC: 0x%08x\n", block->pc); |
1053 | lightrec_print_disassembly(block, code); | |
d16005f8 PC |
1054 | } |
1055 | ||
98fa08a5 | 1056 | pr_debug("Block size: %hu opcodes\n", block->nb_ops); |
d16005f8 PC |
1057 | |
1058 | /* If the first opcode is an 'impossible' branch, never compile the | |
1059 | * block */ | |
98fa08a5 | 1060 | if (should_emulate(block->opcode_list)) |
d16005f8 PC |
1061 | block->flags |= BLOCK_NEVER_COMPILE; |
1062 | ||
98fa08a5 PC |
1063 | fully_tagged = lightrec_block_is_fully_tagged(block); |
1064 | if (fully_tagged) | |
1065 | block->flags |= BLOCK_FULLY_TAGGED; | |
1066 | ||
1067 | if (OPT_REPLACE_MEMSET && (block->flags & BLOCK_IS_MEMSET)) | |
1068 | state->code_lut[lut_offset(pc)] = state->memset_func; | |
1069 | ||
d16005f8 PC |
1070 | block->hash = lightrec_calculate_block_hash(block); |
1071 | ||
a59e5536 | 1072 | pr_debug("Recompile count: %u\n", state->nb_precompile++); |
1073 | ||
d16005f8 PC |
1074 | return block; |
1075 | } | |
1076 | ||
98fa08a5 | 1077 | static bool lightrec_block_is_fully_tagged(const struct block *block) |
d16005f8 | 1078 | { |
98fa08a5 PC |
1079 | const struct opcode *op; |
1080 | unsigned int i; | |
1081 | ||
1082 | for (i = 0; i < block->nb_ops; i++) { | |
1083 | op = &block->opcode_list[i]; | |
d16005f8 | 1084 | |
d16005f8 PC |
1085 | /* Verify that all load/stores of the opcode list |
1086 | * Check all loads/stores of the opcode list and mark the | |
1087 | * block as fully compiled if they all have been tagged. */ | |
1088 | switch (op->c.i.op) { | |
1089 | case OP_LB: | |
1090 | case OP_LH: | |
1091 | case OP_LWL: | |
1092 | case OP_LW: | |
1093 | case OP_LBU: | |
1094 | case OP_LHU: | |
1095 | case OP_LWR: | |
1096 | case OP_SB: | |
1097 | case OP_SH: | |
1098 | case OP_SWL: | |
1099 | case OP_SW: | |
1100 | case OP_SWR: | |
1101 | case OP_LWC2: | |
1102 | case OP_SWC2: | |
1103 | if (!(op->flags & (LIGHTREC_DIRECT_IO | | |
1104 | LIGHTREC_HW_IO))) | |
1105 | return false; | |
1106 | default: /* fall-through */ | |
1107 | continue; | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | return true; | |
1112 | } | |
1113 | ||
98fa08a5 | 1114 | static void lightrec_reap_block(struct lightrec_state *state, void *data) |
a59e5536 | 1115 | { |
1116 | struct block *block = data; | |
1117 | ||
1118 | pr_debug("Reap dead block at PC 0x%08x\n", block->pc); | |
98fa08a5 PC |
1119 | lightrec_unregister_block(state->block_cache, block); |
1120 | lightrec_free_block(state, block); | |
a59e5536 | 1121 | } |
1122 | ||
98fa08a5 | 1123 | static void lightrec_reap_jit(struct lightrec_state *state, void *data) |
a59e5536 | 1124 | { |
1125 | _jit_destroy_state(data); | |
1126 | } | |
1127 | ||
98fa08a5 PC |
1128 | int lightrec_compile_block(struct lightrec_cstate *cstate, |
1129 | struct block *block) | |
d16005f8 | 1130 | { |
98fa08a5 | 1131 | struct lightrec_state *state = cstate->state; |
a59e5536 | 1132 | struct lightrec_branch_target *target; |
d16005f8 | 1133 | bool op_list_freed = false, fully_tagged = false; |
a59e5536 | 1134 | struct block *block2; |
d16005f8 | 1135 | struct opcode *elm; |
a59e5536 | 1136 | jit_state_t *_jit, *oldjit; |
d16005f8 PC |
1137 | jit_node_t *start_of_block; |
1138 | bool skip_next = false; | |
1139 | jit_word_t code_size; | |
1140 | unsigned int i, j; | |
98fa08a5 | 1141 | u32 offset; |
d16005f8 PC |
1142 | |
1143 | fully_tagged = lightrec_block_is_fully_tagged(block); | |
1144 | if (fully_tagged) | |
1145 | block->flags |= BLOCK_FULLY_TAGGED; | |
1146 | ||
1147 | _jit = jit_new_state(); | |
1148 | if (!_jit) | |
1149 | return -ENOMEM; | |
1150 | ||
a59e5536 | 1151 | oldjit = block->_jit; |
d16005f8 PC |
1152 | block->_jit = _jit; |
1153 | ||
98fa08a5 PC |
1154 | lightrec_regcache_reset(cstate->reg_cache); |
1155 | cstate->cycles = 0; | |
1156 | cstate->nb_branches = 0; | |
1157 | cstate->nb_local_branches = 0; | |
1158 | cstate->nb_targets = 0; | |
d16005f8 PC |
1159 | |
1160 | jit_prolog(); | |
1161 | jit_tramp(256); | |
1162 | ||
1163 | start_of_block = jit_label(); | |
1164 | ||
98fa08a5 PC |
1165 | for (i = 0; i < block->nb_ops; i++) { |
1166 | elm = &block->opcode_list[i]; | |
d16005f8 PC |
1167 | |
1168 | if (skip_next) { | |
1169 | skip_next = false; | |
1170 | continue; | |
1171 | } | |
1172 | ||
98fa08a5 | 1173 | cstate->cycles += lightrec_cycles_of_opcode(elm->c); |
d16005f8 | 1174 | |
98fa08a5 | 1175 | if (should_emulate(elm)) { |
d16005f8 | 1176 | pr_debug("Branch at offset 0x%x will be emulated\n", |
98fa08a5 PC |
1177 | i << 2); |
1178 | ||
1179 | lightrec_emit_eob(cstate, block, i, false); | |
d16005f8 | 1180 | skip_next = !(elm->flags & LIGHTREC_NO_DS); |
98fa08a5 PC |
1181 | } else { |
1182 | lightrec_rec_opcode(cstate, block, i); | |
d16005f8 PC |
1183 | skip_next = has_delay_slot(elm->c) && |
1184 | !(elm->flags & LIGHTREC_NO_DS); | |
1185 | #if _WIN32 | |
1186 | /* FIXME: GNU Lightning on Windows seems to use our | |
1187 | * mapped registers as temporaries. Until the actual bug | |
1188 | * is found and fixed, unconditionally mark our | |
1189 | * registers as live here. */ | |
98fa08a5 | 1190 | lightrec_regcache_mark_live(cstate->reg_cache, _jit); |
d16005f8 PC |
1191 | #endif |
1192 | } | |
1193 | } | |
1194 | ||
98fa08a5 PC |
1195 | for (i = 0; i < cstate->nb_branches; i++) |
1196 | jit_patch(cstate->branches[i]); | |
d16005f8 | 1197 | |
98fa08a5 PC |
1198 | for (i = 0; i < cstate->nb_local_branches; i++) { |
1199 | struct lightrec_branch *branch = &cstate->local_branches[i]; | |
d16005f8 PC |
1200 | |
1201 | pr_debug("Patch local branch to offset 0x%x\n", | |
1202 | branch->target << 2); | |
1203 | ||
1204 | if (branch->target == 0) { | |
1205 | jit_patch_at(branch->branch, start_of_block); | |
1206 | continue; | |
1207 | } | |
1208 | ||
98fa08a5 PC |
1209 | for (j = 0; j < cstate->nb_targets; j++) { |
1210 | if (cstate->targets[j].offset == branch->target) { | |
d16005f8 | 1211 | jit_patch_at(branch->branch, |
98fa08a5 | 1212 | cstate->targets[j].label); |
d16005f8 PC |
1213 | break; |
1214 | } | |
1215 | } | |
1216 | ||
98fa08a5 | 1217 | if (j == cstate->nb_targets) |
d16005f8 PC |
1218 | pr_err("Unable to find branch target\n"); |
1219 | } | |
1220 | ||
1221 | jit_ldxi(JIT_R0, LIGHTREC_REG_STATE, | |
1222 | offsetof(struct lightrec_state, eob_wrapper_func)); | |
1223 | ||
1224 | jit_jmpr(JIT_R0); | |
1225 | ||
1226 | jit_ret(); | |
1227 | jit_epilog(); | |
1228 | ||
1229 | block->function = jit_emit(); | |
a59e5536 | 1230 | block->flags &= ~BLOCK_SHOULD_RECOMPILE; |
d16005f8 PC |
1231 | |
1232 | /* Add compiled function to the LUT */ | |
1233 | state->code_lut[lut_offset(block->pc)] = block->function; | |
1234 | ||
98fa08a5 PC |
1235 | if (ENABLE_THREADED_COMPILER) { |
1236 | /* Since we might try to reap the same block multiple times, | |
1237 | * we need the reaper to wait until everything has been | |
1238 | * submitted, so that the duplicate entries can be dropped. */ | |
1239 | lightrec_reaper_pause(state->reaper); | |
a59e5536 | 1240 | } |
1241 | ||
1242 | /* Detect old blocks that have been covered by the new one */ | |
98fa08a5 PC |
1243 | for (i = 0; i < cstate->nb_targets; i++) { |
1244 | target = &cstate->targets[i]; | |
a59e5536 | 1245 | |
1246 | if (!target->offset) | |
1247 | continue; | |
1248 | ||
1249 | offset = block->pc + target->offset * sizeof(u32); | |
1250 | block2 = lightrec_find_block(state->block_cache, offset); | |
1251 | if (block2) { | |
1252 | /* No need to check if block2 is compilable - it must | |
1253 | * be, otherwise block wouldn't be compilable either */ | |
1254 | ||
98fa08a5 PC |
1255 | /* Set the "block dead" flag to prevent the dynarec from |
1256 | * recompiling this block */ | |
a59e5536 | 1257 | block2->flags |= BLOCK_IS_DEAD; |
1258 | ||
98fa08a5 PC |
1259 | /* If block2 was pending for compilation, cancel it. |
1260 | * If it's being compiled right now, wait until it | |
1261 | * finishes. */ | |
1262 | if (ENABLE_THREADED_COMPILER) | |
1263 | lightrec_recompiler_remove(state->rec, block2); | |
1264 | ||
1265 | /* We know from now on that block2 isn't going to be | |
1266 | * compiled. We can override the LUT entry with our | |
1267 | * new block's entry point. */ | |
1268 | offset = lut_offset(block->pc) + target->offset; | |
1269 | state->code_lut[offset] = jit_address(target->label); | |
1270 | ||
a59e5536 | 1271 | pr_debug("Reap block 0x%08x as it's covered by block " |
1272 | "0x%08x\n", block2->pc, block->pc); | |
1273 | ||
98fa08a5 | 1274 | /* Finally, reap the block. */ |
a59e5536 | 1275 | if (ENABLE_THREADED_COMPILER) { |
a59e5536 | 1276 | lightrec_reaper_add(state->reaper, |
1277 | lightrec_reap_block, | |
1278 | block2); | |
1279 | } else { | |
98fa08a5 PC |
1280 | lightrec_unregister_block(state->block_cache, block2); |
1281 | lightrec_free_block(state, block2); | |
a59e5536 | 1282 | } |
1283 | } | |
1284 | } | |
1285 | ||
b19ddc79 | 1286 | if (ENABLE_THREADED_COMPILER) |
98fa08a5 PC |
1287 | lightrec_reaper_continue(state->reaper); |
1288 | ||
d16005f8 PC |
1289 | jit_get_code(&code_size); |
1290 | lightrec_register(MEM_FOR_CODE, code_size); | |
1291 | ||
1292 | block->code_size = code_size; | |
1293 | ||
1294 | if (ENABLE_DISASSEMBLER) { | |
98fa08a5 | 1295 | pr_debug("Compiling block at PC: 0x%08x\n", block->pc); |
d16005f8 PC |
1296 | jit_disassemble(); |
1297 | } | |
1298 | ||
1299 | jit_clear_state(); | |
1300 | ||
1301 | #if ENABLE_THREADED_COMPILER | |
1302 | if (fully_tagged) | |
1303 | op_list_freed = atomic_flag_test_and_set(&block->op_list_freed); | |
1304 | #endif | |
1305 | if (fully_tagged && !op_list_freed) { | |
1306 | pr_debug("Block PC 0x%08x is fully tagged" | |
1307 | " - free opcode list\n", block->pc); | |
98fa08a5 | 1308 | lightrec_free_opcode_list(state, block); |
d16005f8 PC |
1309 | block->opcode_list = NULL; |
1310 | } | |
1311 | ||
a59e5536 | 1312 | if (oldjit) { |
1313 | pr_debug("Block 0x%08x recompiled, reaping old jit context.\n", | |
1314 | block->pc); | |
1315 | ||
1316 | if (ENABLE_THREADED_COMPILER) | |
1317 | lightrec_reaper_add(state->reaper, | |
1318 | lightrec_reap_jit, oldjit); | |
1319 | else | |
1320 | _jit_destroy_state(oldjit); | |
1321 | } | |
1322 | ||
d16005f8 PC |
1323 | return 0; |
1324 | } | |
1325 | ||
98fa08a5 PC |
1326 | static void lightrec_print_info(struct lightrec_state *state) |
1327 | { | |
1328 | if ((state->current_cycle & ~0xfffffff) != state->old_cycle_counter) { | |
1329 | pr_info("Lightrec RAM usage: IR %u KiB, CODE %u KiB, " | |
1330 | "MIPS %u KiB, TOTAL %u KiB, avg. IPI %f\n", | |
1331 | lightrec_get_mem_usage(MEM_FOR_IR) / 1024, | |
1332 | lightrec_get_mem_usage(MEM_FOR_CODE) / 1024, | |
1333 | lightrec_get_mem_usage(MEM_FOR_MIPS_CODE) / 1024, | |
1334 | lightrec_get_total_mem_usage() / 1024, | |
1335 | lightrec_get_average_ipi()); | |
1336 | state->old_cycle_counter = state->current_cycle & ~0xfffffff; | |
1337 | } | |
1338 | } | |
1339 | ||
d16005f8 PC |
1340 | u32 lightrec_execute(struct lightrec_state *state, u32 pc, u32 target_cycle) |
1341 | { | |
1342 | s32 (*func)(void *, s32) = (void *)state->dispatcher->function; | |
1343 | void *block_trace; | |
1344 | s32 cycles_delta; | |
1345 | ||
1346 | state->exit_flags = LIGHTREC_EXIT_NORMAL; | |
1347 | ||
1348 | /* Handle the cycle counter overflowing */ | |
1349 | if (unlikely(target_cycle < state->current_cycle)) | |
1350 | target_cycle = UINT_MAX; | |
1351 | ||
1352 | state->target_cycle = target_cycle; | |
98fa08a5 | 1353 | state->next_pc = pc; |
d16005f8 PC |
1354 | |
1355 | block_trace = get_next_block_func(state, pc); | |
1356 | if (block_trace) { | |
1357 | cycles_delta = state->target_cycle - state->current_cycle; | |
1358 | ||
1359 | cycles_delta = (*func)(block_trace, cycles_delta); | |
1360 | ||
1361 | state->current_cycle = state->target_cycle - cycles_delta; | |
1362 | } | |
1363 | ||
a59e5536 | 1364 | if (ENABLE_THREADED_COMPILER) |
1365 | lightrec_reaper_reap(state->reaper); | |
1366 | ||
98fa08a5 PC |
1367 | if (LOG_LEVEL >= INFO_L) |
1368 | lightrec_print_info(state); | |
1369 | ||
d16005f8 PC |
1370 | return state->next_pc; |
1371 | } | |
1372 | ||
1373 | u32 lightrec_execute_one(struct lightrec_state *state, u32 pc) | |
1374 | { | |
1375 | return lightrec_execute(state, pc, state->current_cycle); | |
1376 | } | |
1377 | ||
1378 | u32 lightrec_run_interpreter(struct lightrec_state *state, u32 pc) | |
1379 | { | |
1380 | struct block *block = lightrec_get_block(state, pc); | |
1381 | if (!block) | |
1382 | return 0; | |
1383 | ||
1384 | state->exit_flags = LIGHTREC_EXIT_NORMAL; | |
1385 | ||
98fa08a5 PC |
1386 | pc = lightrec_emulate_block(state, block, pc); |
1387 | ||
1388 | if (LOG_LEVEL >= INFO_L) | |
1389 | lightrec_print_info(state); | |
1390 | ||
1391 | return pc; | |
d16005f8 PC |
1392 | } |
1393 | ||
98fa08a5 | 1394 | void lightrec_free_block(struct lightrec_state *state, struct block *block) |
d16005f8 PC |
1395 | { |
1396 | lightrec_unregister(MEM_FOR_MIPS_CODE, block->nb_ops * sizeof(u32)); | |
1397 | if (block->opcode_list) | |
98fa08a5 | 1398 | lightrec_free_opcode_list(state, block); |
d16005f8 PC |
1399 | if (block->_jit) |
1400 | _jit_destroy_state(block->_jit); | |
1401 | lightrec_unregister(MEM_FOR_CODE, block->code_size); | |
98fa08a5 PC |
1402 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); |
1403 | } | |
1404 | ||
1405 | struct lightrec_cstate * lightrec_create_cstate(struct lightrec_state *state) | |
1406 | { | |
1407 | struct lightrec_cstate *cstate; | |
1408 | ||
1409 | cstate = lightrec_malloc(state, MEM_FOR_LIGHTREC, sizeof(*cstate)); | |
1410 | if (!cstate) | |
1411 | return NULL; | |
1412 | ||
1413 | cstate->reg_cache = lightrec_regcache_init(state); | |
1414 | if (!cstate->reg_cache) { | |
1415 | lightrec_free(state, MEM_FOR_LIGHTREC, sizeof(*cstate), cstate); | |
1416 | return NULL; | |
1417 | } | |
1418 | ||
1419 | cstate->state = state; | |
1420 | ||
1421 | return cstate; | |
1422 | } | |
1423 | ||
1424 | void lightrec_free_cstate(struct lightrec_cstate *cstate) | |
1425 | { | |
1426 | lightrec_free_regcache(cstate->reg_cache); | |
1427 | lightrec_free(cstate->state, MEM_FOR_LIGHTREC, sizeof(*cstate), cstate); | |
d16005f8 PC |
1428 | } |
1429 | ||
1430 | struct lightrec_state * lightrec_init(char *argv0, | |
1431 | const struct lightrec_mem_map *map, | |
1432 | size_t nb, | |
1433 | const struct lightrec_ops *ops) | |
1434 | { | |
1435 | struct lightrec_state *state; | |
1436 | ||
1437 | /* Sanity-check ops */ | |
98fa08a5 | 1438 | if (!ops || !ops->cop2_op || !ops->enable_ram) { |
d16005f8 PC |
1439 | pr_err("Missing callbacks in lightrec_ops structure\n"); |
1440 | return NULL; | |
1441 | } | |
1442 | ||
1443 | init_jit(argv0); | |
1444 | ||
1445 | state = calloc(1, sizeof(*state) + | |
1446 | sizeof(*state->code_lut) * CODE_LUT_SIZE); | |
1447 | if (!state) | |
1448 | goto err_finish_jit; | |
1449 | ||
1450 | lightrec_register(MEM_FOR_LIGHTREC, sizeof(*state) + | |
1451 | sizeof(*state->code_lut) * CODE_LUT_SIZE); | |
1452 | ||
1453 | #if ENABLE_TINYMM | |
1454 | state->tinymm = tinymm_init(malloc, free, 4096); | |
1455 | if (!state->tinymm) | |
1456 | goto err_free_state; | |
1457 | #endif | |
1458 | ||
1459 | state->block_cache = lightrec_blockcache_init(state); | |
1460 | if (!state->block_cache) | |
1461 | goto err_free_tinymm; | |
1462 | ||
d16005f8 PC |
1463 | if (ENABLE_THREADED_COMPILER) { |
1464 | state->rec = lightrec_recompiler_init(state); | |
1465 | if (!state->rec) | |
98fa08a5 | 1466 | goto err_free_block_cache; |
a59e5536 | 1467 | |
1468 | state->reaper = lightrec_reaper_init(state); | |
1469 | if (!state->reaper) | |
1470 | goto err_free_recompiler; | |
98fa08a5 PC |
1471 | } else { |
1472 | state->cstate = lightrec_create_cstate(state); | |
1473 | if (!state->cstate) | |
1474 | goto err_free_block_cache; | |
d16005f8 PC |
1475 | } |
1476 | ||
1477 | state->nb_maps = nb; | |
1478 | state->maps = map; | |
1479 | ||
1480 | memcpy(&state->ops, ops, sizeof(*ops)); | |
1481 | ||
1482 | state->dispatcher = generate_dispatcher(state); | |
1483 | if (!state->dispatcher) | |
a59e5536 | 1484 | goto err_free_reaper; |
d16005f8 | 1485 | |
98fa08a5 PC |
1486 | state->c_wrapper_block = generate_wrapper(state); |
1487 | if (!state->c_wrapper_block) | |
d16005f8 PC |
1488 | goto err_free_dispatcher; |
1489 | ||
98fa08a5 PC |
1490 | state->c_wrapper = state->c_wrapper_block->function; |
1491 | ||
1492 | state->c_wrappers[C_WRAPPER_RW] = lightrec_rw_cb; | |
1493 | state->c_wrappers[C_WRAPPER_RW_GENERIC] = lightrec_rw_generic_cb; | |
1494 | state->c_wrappers[C_WRAPPER_MFC] = lightrec_mfc_cb; | |
1495 | state->c_wrappers[C_WRAPPER_MTC] = lightrec_mtc_cb; | |
1496 | state->c_wrappers[C_WRAPPER_CP] = lightrec_cp; | |
1497 | state->c_wrappers[C_WRAPPER_SYSCALL] = lightrec_syscall_cb; | |
1498 | state->c_wrappers[C_WRAPPER_BREAK] = lightrec_break_cb; | |
d16005f8 PC |
1499 | |
1500 | map = &state->maps[PSX_MAP_BIOS]; | |
1501 | state->offset_bios = (uintptr_t)map->address - map->pc; | |
1502 | ||
1503 | map = &state->maps[PSX_MAP_SCRATCH_PAD]; | |
1504 | state->offset_scratch = (uintptr_t)map->address - map->pc; | |
1505 | ||
1506 | map = &state->maps[PSX_MAP_KERNEL_USER_RAM]; | |
1507 | state->offset_ram = (uintptr_t)map->address - map->pc; | |
1508 | ||
1509 | if (state->maps[PSX_MAP_MIRROR1].address == map->address + 0x200000 && | |
1510 | state->maps[PSX_MAP_MIRROR2].address == map->address + 0x400000 && | |
1511 | state->maps[PSX_MAP_MIRROR3].address == map->address + 0x600000) | |
1512 | state->mirrors_mapped = true; | |
1513 | ||
98fa08a5 PC |
1514 | if (state->offset_bios == 0 && |
1515 | state->offset_scratch == 0 && | |
1516 | state->offset_ram == 0 && | |
1517 | state->mirrors_mapped) { | |
1518 | pr_info("Memory map is perfect. Emitted code will be best.\n"); | |
1519 | } else { | |
1520 | pr_info("Memory map is sub-par. Emitted code will be slow.\n"); | |
1521 | } | |
1522 | ||
d16005f8 PC |
1523 | return state; |
1524 | ||
d16005f8 | 1525 | err_free_dispatcher: |
98fa08a5 | 1526 | lightrec_free_block(state, state->dispatcher); |
a59e5536 | 1527 | err_free_reaper: |
1528 | if (ENABLE_THREADED_COMPILER) | |
1529 | lightrec_reaper_destroy(state->reaper); | |
d16005f8 PC |
1530 | err_free_recompiler: |
1531 | if (ENABLE_THREADED_COMPILER) | |
1532 | lightrec_free_recompiler(state->rec); | |
98fa08a5 PC |
1533 | else |
1534 | lightrec_free_cstate(state->cstate); | |
d16005f8 PC |
1535 | err_free_block_cache: |
1536 | lightrec_free_block_cache(state->block_cache); | |
1537 | err_free_tinymm: | |
1538 | #if ENABLE_TINYMM | |
1539 | tinymm_shutdown(state->tinymm); | |
1540 | err_free_state: | |
1541 | #endif | |
1542 | lightrec_unregister(MEM_FOR_LIGHTREC, sizeof(*state) + | |
1543 | sizeof(*state->code_lut) * CODE_LUT_SIZE); | |
1544 | free(state); | |
1545 | err_finish_jit: | |
1546 | finish_jit(); | |
1547 | return NULL; | |
1548 | } | |
1549 | ||
1550 | void lightrec_destroy(struct lightrec_state *state) | |
1551 | { | |
98fa08a5 PC |
1552 | /* Force a print info on destroy*/ |
1553 | state->current_cycle = ~state->current_cycle; | |
1554 | lightrec_print_info(state); | |
1555 | ||
a59e5536 | 1556 | if (ENABLE_THREADED_COMPILER) { |
d16005f8 | 1557 | lightrec_free_recompiler(state->rec); |
a59e5536 | 1558 | lightrec_reaper_destroy(state->reaper); |
98fa08a5 PC |
1559 | } else { |
1560 | lightrec_free_cstate(state->cstate); | |
a59e5536 | 1561 | } |
d16005f8 | 1562 | |
d16005f8 | 1563 | lightrec_free_block_cache(state->block_cache); |
98fa08a5 PC |
1564 | lightrec_free_block(state, state->dispatcher); |
1565 | lightrec_free_block(state, state->c_wrapper_block); | |
d16005f8 PC |
1566 | finish_jit(); |
1567 | ||
1568 | #if ENABLE_TINYMM | |
1569 | tinymm_shutdown(state->tinymm); | |
1570 | #endif | |
1571 | lightrec_unregister(MEM_FOR_LIGHTREC, sizeof(*state) + | |
1572 | sizeof(*state->code_lut) * CODE_LUT_SIZE); | |
1573 | free(state); | |
1574 | } | |
1575 | ||
1576 | void lightrec_invalidate(struct lightrec_state *state, u32 addr, u32 len) | |
1577 | { | |
1578 | u32 kaddr = kunseg(addr & ~0x3); | |
98fa08a5 | 1579 | const struct lightrec_mem_map *map = lightrec_get_map(state, NULL, kaddr); |
d16005f8 PC |
1580 | |
1581 | if (map) { | |
d16005f8 PC |
1582 | if (map != &state->maps[PSX_MAP_KERNEL_USER_RAM]) |
1583 | return; | |
1584 | ||
1585 | /* Handle mirrors */ | |
1586 | kaddr &= (state->maps[PSX_MAP_KERNEL_USER_RAM].length - 1); | |
1587 | ||
98fa08a5 | 1588 | lightrec_invalidate_map(state, map, kaddr, len); |
d16005f8 PC |
1589 | } |
1590 | } | |
1591 | ||
1592 | void lightrec_invalidate_all(struct lightrec_state *state) | |
1593 | { | |
1594 | memset(state->code_lut, 0, sizeof(*state->code_lut) * CODE_LUT_SIZE); | |
1595 | } | |
1596 | ||
1597 | void lightrec_set_invalidate_mode(struct lightrec_state *state, bool dma_only) | |
1598 | { | |
1599 | if (state->invalidate_from_dma_only != dma_only) | |
1600 | lightrec_invalidate_all(state); | |
1601 | ||
1602 | state->invalidate_from_dma_only = dma_only; | |
1603 | } | |
1604 | ||
1605 | void lightrec_set_exit_flags(struct lightrec_state *state, u32 flags) | |
1606 | { | |
1607 | if (flags != LIGHTREC_EXIT_NORMAL) { | |
1608 | state->exit_flags |= flags; | |
1609 | state->target_cycle = state->current_cycle; | |
1610 | } | |
1611 | } | |
1612 | ||
1613 | u32 lightrec_exit_flags(struct lightrec_state *state) | |
1614 | { | |
1615 | return state->exit_flags; | |
1616 | } | |
1617 | ||
d16005f8 PC |
1618 | u32 lightrec_current_cycle_count(const struct lightrec_state *state) |
1619 | { | |
1620 | return state->current_cycle; | |
1621 | } | |
1622 | ||
1623 | void lightrec_reset_cycle_count(struct lightrec_state *state, u32 cycles) | |
1624 | { | |
1625 | state->current_cycle = cycles; | |
1626 | ||
1627 | if (state->target_cycle < cycles) | |
1628 | state->target_cycle = cycles; | |
1629 | } | |
1630 | ||
1631 | void lightrec_set_target_cycle_count(struct lightrec_state *state, u32 cycles) | |
1632 | { | |
1633 | if (state->exit_flags == LIGHTREC_EXIT_NORMAL) { | |
1634 | if (cycles < state->current_cycle) | |
1635 | cycles = state->current_cycle; | |
1636 | ||
1637 | state->target_cycle = cycles; | |
1638 | } | |
1639 | } | |
98fa08a5 PC |
1640 | |
1641 | struct lightrec_registers * lightrec_get_registers(struct lightrec_state *state) | |
1642 | { | |
1643 | return &state->regs; | |
1644 | } |