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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 | ||
98fa08a5 | 409 | static void lightrec_mtc0(struct lightrec_state *state, u8 reg, u32 data) |
d16005f8 | 410 | { |
fd58fa32 | 411 | u32 status, oldstatus, cause; |
98fa08a5 PC |
412 | |
413 | switch (reg) { | |
414 | case 1: | |
415 | case 4: | |
416 | case 8: | |
417 | case 14: | |
418 | case 15: | |
419 | /* Those registers are read-only */ | |
420 | return; | |
fd58fa32 | 421 | default: |
98fa08a5 PC |
422 | break; |
423 | } | |
d16005f8 | 424 | |
98fa08a5 PC |
425 | if (reg == 12) { |
426 | status = state->regs.cp0[12]; | |
fd58fa32 | 427 | oldstatus = status; |
d16005f8 | 428 | |
98fa08a5 PC |
429 | if (status & ~data & BIT(16)) { |
430 | state->ops.enable_ram(state, true); | |
431 | lightrec_invalidate_all(state); | |
432 | } else if (~status & data & BIT(16)) { | |
433 | state->ops.enable_ram(state, false); | |
434 | } | |
435 | } | |
436 | ||
fd58fa32 PC |
437 | if (reg == 13) { |
438 | state->regs.cp0[13] &= ~0x300; | |
439 | state->regs.cp0[13] |= data & 0x300; | |
440 | } else { | |
441 | state->regs.cp0[reg] = data; | |
442 | } | |
98fa08a5 PC |
443 | |
444 | if (reg == 12 || reg == 13) { | |
445 | cause = state->regs.cp0[13]; | |
446 | status = state->regs.cp0[12]; | |
447 | ||
fd58fa32 | 448 | /* Handle software interrupts */ |
98fa08a5 PC |
449 | if (!!(status & cause & 0x300) & status) |
450 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT); | |
fd58fa32 PC |
451 | |
452 | /* Handle hardware interrupts */ | |
453 | if (reg == 12 && !(~status & 0x401) && (~oldstatus & 0x401)) | |
454 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT); | |
98fa08a5 PC |
455 | } |
456 | } | |
457 | ||
458 | static u32 count_leading_bits(s32 data) | |
459 | { | |
98fa08a5 PC |
460 | u32 cnt = 33; |
461 | ||
de742fa0 PC |
462 | #ifdef __has_builtin |
463 | #if __has_builtin(__builtin_clrsb) | |
464 | return 1 + __builtin_clrsb(data); | |
465 | #endif | |
466 | #endif | |
467 | ||
98fa08a5 PC |
468 | data = (data ^ (data >> 31)) << 1; |
469 | ||
470 | do { | |
471 | cnt -= 1; | |
472 | data >>= 1; | |
473 | } while (data); | |
474 | ||
475 | return cnt; | |
98fa08a5 PC |
476 | } |
477 | ||
478 | static void lightrec_mtc2(struct lightrec_state *state, u8 reg, u32 data) | |
479 | { | |
480 | switch (reg) { | |
481 | case 15: | |
482 | state->regs.cp2d[12] = state->regs.cp2d[13]; | |
483 | state->regs.cp2d[13] = state->regs.cp2d[14]; | |
484 | state->regs.cp2d[14] = data; | |
485 | break; | |
486 | case 28: | |
487 | state->regs.cp2d[9] = (data << 7) & 0xf80; | |
488 | state->regs.cp2d[10] = (data << 2) & 0xf80; | |
489 | state->regs.cp2d[11] = (data >> 3) & 0xf80; | |
490 | break; | |
491 | case 31: | |
492 | return; | |
493 | case 30: | |
494 | state->regs.cp2d[31] = count_leading_bits((s32) data); | |
495 | default: /* fall-through */ | |
496 | state->regs.cp2d[reg] = data; | |
497 | break; | |
498 | } | |
499 | } | |
d16005f8 | 500 | |
98fa08a5 PC |
501 | static void lightrec_ctc2(struct lightrec_state *state, u8 reg, u32 data) |
502 | { | |
503 | switch (reg) { | |
504 | case 4: | |
505 | case 12: | |
506 | case 20: | |
507 | case 26: | |
508 | case 27: | |
509 | case 29: | |
510 | case 30: | |
511 | data = (s32)(s16) data; | |
512 | break; | |
513 | case 31: | |
514 | data = (data & 0x7ffff000) | !!(data & 0x7f87e000) << 31; | |
515 | default: /* fall-through */ | |
516 | break; | |
517 | } | |
518 | ||
519 | state->regs.cp2c[reg] = data; | |
520 | } | |
521 | ||
522 | void lightrec_mtc(struct lightrec_state *state, union code op, u32 data) | |
523 | { | |
524 | if (op.i.op == OP_CP0) | |
525 | lightrec_mtc0(state, op.r.rd, data); | |
526 | else if (op.r.rs == OP_CP2_BASIC_CTC2) | |
527 | lightrec_ctc2(state, op.r.rd, data); | |
528 | else | |
529 | lightrec_mtc2(state, op.r.rd, data); | |
d16005f8 PC |
530 | } |
531 | ||
532 | static void lightrec_mtc_cb(struct lightrec_state *state, union code op) | |
533 | { | |
98fa08a5 | 534 | lightrec_mtc(state, op, state->regs.gpr[op.r.rt]); |
d16005f8 PC |
535 | } |
536 | ||
98fa08a5 | 537 | void lightrec_rfe(struct lightrec_state *state) |
d16005f8 PC |
538 | { |
539 | u32 status; | |
540 | ||
541 | /* Read CP0 Status register (r12) */ | |
98fa08a5 | 542 | status = state->regs.cp0[12]; |
d16005f8 PC |
543 | |
544 | /* Switch the bits */ | |
545 | status = ((status & 0x3c) >> 2) | (status & ~0xf); | |
546 | ||
547 | /* Write it back */ | |
98fa08a5 | 548 | lightrec_mtc0(state, 12, status); |
d16005f8 PC |
549 | } |
550 | ||
98fa08a5 | 551 | void lightrec_cp(struct lightrec_state *state, union code op) |
d16005f8 | 552 | { |
98fa08a5 PC |
553 | if (op.i.op == OP_CP0) { |
554 | pr_err("Invalid CP opcode to coprocessor #0\n"); | |
555 | return; | |
556 | } | |
d16005f8 | 557 | |
98fa08a5 | 558 | (*state->ops.cop2_op)(state, op.opcode); |
d16005f8 PC |
559 | } |
560 | ||
561 | static void lightrec_syscall_cb(struct lightrec_state *state, union code op) | |
562 | { | |
563 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_SYSCALL); | |
564 | } | |
565 | ||
566 | static void lightrec_break_cb(struct lightrec_state *state, union code op) | |
567 | { | |
568 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_BREAK); | |
569 | } | |
570 | ||
571 | struct block * lightrec_get_block(struct lightrec_state *state, u32 pc) | |
572 | { | |
573 | struct block *block = lightrec_find_block(state->block_cache, pc); | |
574 | ||
98fa08a5 | 575 | if (block && lightrec_block_is_outdated(state, block)) { |
d16005f8 PC |
576 | pr_debug("Block at PC 0x%08x is outdated!\n", block->pc); |
577 | ||
578 | /* Make sure the recompiler isn't processing the block we'll | |
579 | * destroy */ | |
580 | if (ENABLE_THREADED_COMPILER) | |
581 | lightrec_recompiler_remove(state->rec, block); | |
582 | ||
583 | lightrec_unregister_block(state->block_cache, block); | |
a59e5536 | 584 | remove_from_code_lut(state->block_cache, block); |
98fa08a5 | 585 | lightrec_free_block(state, block); |
d16005f8 PC |
586 | block = NULL; |
587 | } | |
588 | ||
589 | if (!block) { | |
590 | block = lightrec_precompile_block(state, pc); | |
591 | if (!block) { | |
592 | pr_err("Unable to recompile block at PC 0x%x\n", pc); | |
593 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_SEGFAULT); | |
594 | return NULL; | |
595 | } | |
596 | ||
597 | lightrec_register_block(state->block_cache, block); | |
598 | } | |
599 | ||
600 | return block; | |
601 | } | |
602 | ||
603 | static void * get_next_block_func(struct lightrec_state *state, u32 pc) | |
604 | { | |
605 | struct block *block; | |
606 | bool should_recompile; | |
607 | void *func; | |
608 | ||
609 | for (;;) { | |
610 | func = state->code_lut[lut_offset(pc)]; | |
611 | if (func && func != state->get_next_block) | |
98fa08a5 | 612 | break; |
d16005f8 PC |
613 | |
614 | block = lightrec_get_block(state, pc); | |
615 | ||
616 | if (unlikely(!block)) | |
98fa08a5 PC |
617 | break; |
618 | ||
619 | if (OPT_REPLACE_MEMSET && (block->flags & BLOCK_IS_MEMSET)) { | |
620 | func = state->memset_func; | |
621 | break; | |
622 | } | |
d16005f8 | 623 | |
a59e5536 | 624 | should_recompile = block->flags & BLOCK_SHOULD_RECOMPILE && |
625 | !(block->flags & BLOCK_IS_DEAD); | |
d16005f8 PC |
626 | |
627 | if (unlikely(should_recompile)) { | |
a59e5536 | 628 | pr_debug("Block at PC 0x%08x should recompile\n", pc); |
d16005f8 | 629 | |
d16005f8 | 630 | lightrec_unregister(MEM_FOR_CODE, block->code_size); |
a59e5536 | 631 | |
632 | if (ENABLE_THREADED_COMPILER) | |
633 | lightrec_recompiler_add(state->rec, block); | |
634 | else | |
98fa08a5 | 635 | lightrec_compile_block(state->cstate, block); |
d16005f8 PC |
636 | } |
637 | ||
638 | if (ENABLE_THREADED_COMPILER && likely(!should_recompile)) | |
98fa08a5 | 639 | func = lightrec_recompiler_run_first_pass(state, block, &pc); |
d16005f8 PC |
640 | else |
641 | func = block->function; | |
642 | ||
643 | if (likely(func)) | |
98fa08a5 | 644 | break; |
d16005f8 | 645 | |
98fa08a5 PC |
646 | if (unlikely(block->flags & BLOCK_NEVER_COMPILE)) { |
647 | pc = lightrec_emulate_block(state, block, pc); | |
648 | ||
649 | } else if (!ENABLE_THREADED_COMPILER) { | |
650 | /* Block wasn't compiled yet - run the interpreter */ | |
651 | if (block->flags & BLOCK_FULLY_TAGGED) | |
652 | pr_debug("Block fully tagged, skipping first pass\n"); | |
653 | else if (ENABLE_FIRST_PASS && likely(!should_recompile)) | |
654 | pc = lightrec_emulate_block(state, block, pc); | |
d16005f8 | 655 | |
d16005f8 | 656 | /* Then compile it using the profiled data */ |
98fa08a5 PC |
657 | lightrec_compile_block(state->cstate, block); |
658 | } else { | |
659 | lightrec_recompiler_add(state->rec, block); | |
d16005f8 PC |
660 | } |
661 | ||
662 | if (state->exit_flags != LIGHTREC_EXIT_NORMAL || | |
98fa08a5 PC |
663 | state->current_cycle >= state->target_cycle) |
664 | break; | |
d16005f8 | 665 | } |
d16005f8 | 666 | |
98fa08a5 PC |
667 | state->next_pc = pc; |
668 | return func; | |
d16005f8 PC |
669 | } |
670 | ||
671 | static s32 c_function_wrapper(struct lightrec_state *state, s32 cycles_delta, | |
98fa08a5 PC |
672 | void (*f)(struct lightrec_state *, u32 d), |
673 | u32 d) | |
d16005f8 PC |
674 | { |
675 | state->current_cycle = state->target_cycle - cycles_delta; | |
676 | ||
98fa08a5 | 677 | (*f)(state, d); |
d16005f8 PC |
678 | |
679 | return state->target_cycle - state->current_cycle; | |
680 | } | |
681 | ||
98fa08a5 | 682 | static struct block * generate_wrapper(struct lightrec_state *state) |
d16005f8 PC |
683 | { |
684 | struct block *block; | |
685 | jit_state_t *_jit; | |
686 | unsigned int i; | |
687 | int stack_ptr; | |
688 | jit_word_t code_size; | |
689 | jit_node_t *to_tramp, *to_fn_epilog; | |
fd58fa32 | 690 | jit_node_t *addr[C_WRAPPERS_COUNT - 1]; |
d16005f8 PC |
691 | |
692 | block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block)); | |
693 | if (!block) | |
694 | goto err_no_mem; | |
695 | ||
696 | _jit = jit_new_state(); | |
697 | if (!_jit) | |
698 | goto err_free_block; | |
699 | ||
700 | jit_name("RW wrapper"); | |
701 | jit_note(__FILE__, __LINE__); | |
702 | ||
703 | /* Wrapper entry point */ | |
704 | jit_prolog(); | |
fd58fa32 PC |
705 | jit_tramp(256); |
706 | ||
707 | /* Add entry points; separate them by opcodes that increment | |
708 | * LIGHTREC_REG_STATE (since we cannot touch other registers). | |
709 | * The difference will then tell us which C function to call. */ | |
710 | for (i = C_WRAPPERS_COUNT - 1; i > 0; i--) { | |
711 | jit_addi(LIGHTREC_REG_STATE, LIGHTREC_REG_STATE, __WORDSIZE / 8); | |
712 | addr[i - 1] = jit_indirect(); | |
713 | } | |
714 | ||
715 | jit_epilog(); | |
716 | jit_prolog(); | |
d16005f8 PC |
717 | |
718 | stack_ptr = jit_allocai(sizeof(uintptr_t) * NUM_TEMPS); | |
719 | ||
fd58fa32 | 720 | /* Save all temporaries on stack */ |
d16005f8 PC |
721 | for (i = 0; i < NUM_TEMPS; i++) |
722 | jit_stxi(stack_ptr + i * sizeof(uintptr_t), JIT_FP, JIT_R(i)); | |
723 | ||
724 | /* Jump to the trampoline */ | |
725 | to_tramp = jit_jmpi(); | |
726 | ||
727 | /* The trampoline will jump back here */ | |
728 | to_fn_epilog = jit_label(); | |
729 | ||
fd58fa32 | 730 | /* Restore temporaries from stack */ |
d16005f8 PC |
731 | for (i = 0; i < NUM_TEMPS; i++) |
732 | jit_ldxi(JIT_R(i), JIT_FP, stack_ptr + i * sizeof(uintptr_t)); | |
733 | ||
734 | jit_ret(); | |
735 | jit_epilog(); | |
736 | ||
737 | /* Trampoline entry point. | |
738 | * The sole purpose of the trampoline is to cheese Lightning not to | |
739 | * save/restore the callee-saved register LIGHTREC_REG_CYCLE, since we | |
740 | * do want to return to the caller with this register modified. */ | |
741 | jit_prolog(); | |
742 | jit_tramp(256); | |
743 | jit_patch(to_tramp); | |
744 | ||
fd58fa32 PC |
745 | /* Retrieve the wrapper function */ |
746 | jit_ldxi(JIT_R0, LIGHTREC_REG_STATE, | |
747 | offsetof(struct lightrec_state, c_wrappers)); | |
748 | ||
749 | /* Restore LIGHTREC_REG_STATE to its correct value */ | |
750 | jit_movi(LIGHTREC_REG_STATE, (uintptr_t) state); | |
751 | ||
d16005f8 PC |
752 | jit_prepare(); |
753 | jit_pushargr(LIGHTREC_REG_STATE); | |
754 | jit_pushargr(LIGHTREC_REG_CYCLE); | |
d16005f8 | 755 | jit_pushargr(JIT_R0); |
98fa08a5 PC |
756 | jit_pushargr(JIT_R1); |
757 | jit_finishi(c_function_wrapper); | |
d16005f8 | 758 | jit_retval_i(LIGHTREC_REG_CYCLE); |
d16005f8 PC |
759 | |
760 | jit_patch_at(jit_jmpi(), to_fn_epilog); | |
761 | jit_epilog(); | |
762 | ||
d16005f8 PC |
763 | block->_jit = _jit; |
764 | block->function = jit_emit(); | |
765 | block->opcode_list = NULL; | |
766 | block->flags = 0; | |
767 | block->nb_ops = 0; | |
768 | ||
fd58fa32 PC |
769 | state->wrappers_eps[C_WRAPPERS_COUNT - 1] = block->function; |
770 | ||
771 | for (i = 0; i < C_WRAPPERS_COUNT - 1; i++) | |
772 | state->wrappers_eps[i] = jit_address(addr[i]); | |
773 | ||
d16005f8 PC |
774 | jit_get_code(&code_size); |
775 | lightrec_register(MEM_FOR_CODE, code_size); | |
776 | ||
777 | block->code_size = code_size; | |
778 | ||
779 | if (ENABLE_DISASSEMBLER) { | |
780 | pr_debug("Wrapper block:\n"); | |
781 | jit_disassemble(); | |
782 | } | |
783 | ||
784 | jit_clear_state(); | |
785 | return block; | |
786 | ||
787 | err_free_block: | |
788 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); | |
789 | err_no_mem: | |
790 | pr_err("Unable to compile wrapper: Out of memory\n"); | |
791 | return NULL; | |
792 | } | |
793 | ||
98fa08a5 PC |
794 | static u32 lightrec_memset(struct lightrec_state *state) |
795 | { | |
796 | u32 kunseg_pc = kunseg(state->regs.gpr[4]); | |
797 | void *host; | |
798 | const struct lightrec_mem_map *map = lightrec_get_map(state, &host, kunseg_pc); | |
799 | u32 length = state->regs.gpr[5] * 4; | |
800 | ||
801 | if (!map) { | |
802 | pr_err("Unable to find memory map for memset target address " | |
803 | "0x%x\n", kunseg_pc); | |
804 | return 0; | |
805 | } | |
806 | ||
807 | pr_debug("Calling host memset, PC 0x%x (host address 0x%" PRIxPTR ") for %u bytes\n", | |
808 | kunseg_pc, (uintptr_t)host, length); | |
809 | memset(host, 0, length); | |
810 | ||
811 | if (!state->invalidate_from_dma_only) | |
812 | lightrec_invalidate_map(state, map, kunseg_pc, length); | |
813 | ||
814 | /* Rough estimation of the number of cycles consumed */ | |
815 | return 8 + 5 * (length + 3 / 4); | |
816 | } | |
817 | ||
d16005f8 PC |
818 | static struct block * generate_dispatcher(struct lightrec_state *state) |
819 | { | |
820 | struct block *block; | |
821 | jit_state_t *_jit; | |
98fa08a5 | 822 | jit_node_t *to_end, *to_c, *loop, *addr, *addr2, *addr3; |
d16005f8 PC |
823 | unsigned int i; |
824 | u32 offset, ram_len; | |
825 | jit_word_t code_size; | |
826 | ||
827 | block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block)); | |
828 | if (!block) | |
829 | goto err_no_mem; | |
830 | ||
831 | _jit = jit_new_state(); | |
832 | if (!_jit) | |
833 | goto err_free_block; | |
834 | ||
835 | jit_name("dispatcher"); | |
836 | jit_note(__FILE__, __LINE__); | |
837 | ||
838 | jit_prolog(); | |
839 | jit_frame(256); | |
840 | ||
841 | jit_getarg(JIT_R0, jit_arg()); | |
d16005f8 | 842 | jit_getarg_i(LIGHTREC_REG_CYCLE, jit_arg()); |
d16005f8 PC |
843 | |
844 | /* Force all callee-saved registers to be pushed on the stack */ | |
845 | for (i = 0; i < NUM_REGS; i++) | |
846 | jit_movr(JIT_V(i), JIT_V(i)); | |
847 | ||
848 | /* Pass lightrec_state structure to blocks, using the last callee-saved | |
849 | * register that Lightning provides */ | |
850 | jit_movi(LIGHTREC_REG_STATE, (intptr_t) state); | |
851 | ||
852 | loop = jit_label(); | |
853 | ||
854 | /* Call the block's code */ | |
855 | jit_jmpr(JIT_R0); | |
856 | ||
98fa08a5 PC |
857 | if (OPT_REPLACE_MEMSET) { |
858 | /* Blocks will jump here when they need to call | |
859 | * lightrec_memset() */ | |
860 | addr3 = jit_indirect(); | |
861 | ||
862 | jit_prepare(); | |
863 | jit_pushargr(LIGHTREC_REG_STATE); | |
864 | jit_finishi(lightrec_memset); | |
865 | ||
866 | jit_ldxi_ui(JIT_V0, LIGHTREC_REG_STATE, | |
867 | offsetof(struct lightrec_state, regs.gpr[31])); | |
868 | ||
869 | jit_retval(JIT_R0); | |
870 | jit_subr(LIGHTREC_REG_CYCLE, LIGHTREC_REG_CYCLE, JIT_R0); | |
871 | } | |
872 | ||
d16005f8 PC |
873 | /* The block will jump here, with the number of cycles remaining in |
874 | * LIGHTREC_REG_CYCLE */ | |
875 | addr2 = jit_indirect(); | |
876 | ||
98fa08a5 PC |
877 | /* Store back the next_pc to the lightrec_state structure */ |
878 | offset = offsetof(struct lightrec_state, next_pc); | |
879 | jit_stxi_i(offset, LIGHTREC_REG_STATE, JIT_V0); | |
880 | ||
d16005f8 PC |
881 | /* Jump to end if state->target_cycle < state->current_cycle */ |
882 | to_end = jit_blei(LIGHTREC_REG_CYCLE, 0); | |
883 | ||
884 | /* Convert next PC to KUNSEG and avoid mirrors */ | |
885 | ram_len = state->maps[PSX_MAP_KERNEL_USER_RAM].length; | |
886 | jit_andi(JIT_R0, JIT_V0, 0x10000000 | (ram_len - 1)); | |
887 | to_c = jit_bgei(JIT_R0, ram_len); | |
888 | ||
889 | /* Fast path: code is running from RAM, use the code LUT */ | |
98fa08a5 PC |
890 | if (__WORDSIZE == 64) |
891 | jit_lshi(JIT_R0, JIT_R0, 1); | |
d16005f8 PC |
892 | jit_addr(JIT_R0, JIT_R0, LIGHTREC_REG_STATE); |
893 | jit_ldxi(JIT_R0, JIT_R0, offsetof(struct lightrec_state, code_lut)); | |
894 | ||
895 | /* If we get non-NULL, loop */ | |
896 | jit_patch_at(jit_bnei(JIT_R0, 0), loop); | |
897 | ||
898 | /* Slow path: call C function get_next_block_func() */ | |
899 | jit_patch(to_c); | |
900 | ||
98fa08a5 | 901 | if (ENABLE_FIRST_PASS || OPT_DETECT_IMPOSSIBLE_BRANCHES) { |
d16005f8 PC |
902 | /* We may call the interpreter - update state->current_cycle */ |
903 | jit_ldxi_i(JIT_R2, LIGHTREC_REG_STATE, | |
904 | offsetof(struct lightrec_state, target_cycle)); | |
905 | jit_subr(JIT_R1, JIT_R2, LIGHTREC_REG_CYCLE); | |
906 | jit_stxi_i(offsetof(struct lightrec_state, current_cycle), | |
907 | LIGHTREC_REG_STATE, JIT_R1); | |
908 | } | |
909 | ||
910 | /* The code LUT will be set to this address when the block at the target | |
911 | * PC has been preprocessed but not yet compiled by the threaded | |
912 | * recompiler */ | |
913 | addr = jit_indirect(); | |
914 | ||
915 | /* Get the next block */ | |
916 | jit_prepare(); | |
917 | jit_pushargr(LIGHTREC_REG_STATE); | |
918 | jit_pushargr(JIT_V0); | |
919 | jit_finishi(&get_next_block_func); | |
920 | jit_retval(JIT_R0); | |
921 | ||
98fa08a5 | 922 | if (ENABLE_FIRST_PASS || OPT_DETECT_IMPOSSIBLE_BRANCHES) { |
d16005f8 PC |
923 | /* The interpreter may have updated state->current_cycle and |
924 | * state->target_cycle - recalc the delta */ | |
925 | jit_ldxi_i(JIT_R1, LIGHTREC_REG_STATE, | |
926 | offsetof(struct lightrec_state, current_cycle)); | |
927 | jit_ldxi_i(JIT_R2, LIGHTREC_REG_STATE, | |
928 | offsetof(struct lightrec_state, target_cycle)); | |
929 | jit_subr(LIGHTREC_REG_CYCLE, JIT_R2, JIT_R1); | |
930 | } | |
931 | ||
932 | /* If we get non-NULL, loop */ | |
933 | jit_patch_at(jit_bnei(JIT_R0, 0), loop); | |
934 | ||
d16005f8 PC |
935 | /* When exiting, the recompiled code will jump to that address */ |
936 | jit_note(__FILE__, __LINE__); | |
937 | jit_patch(to_end); | |
938 | ||
d16005f8 PC |
939 | jit_retr(LIGHTREC_REG_CYCLE); |
940 | jit_epilog(); | |
941 | ||
d16005f8 PC |
942 | block->_jit = _jit; |
943 | block->function = jit_emit(); | |
944 | block->opcode_list = NULL; | |
945 | block->flags = 0; | |
946 | block->nb_ops = 0; | |
947 | ||
948 | jit_get_code(&code_size); | |
949 | lightrec_register(MEM_FOR_CODE, code_size); | |
950 | ||
951 | block->code_size = code_size; | |
952 | ||
953 | state->eob_wrapper_func = jit_address(addr2); | |
98fa08a5 PC |
954 | if (OPT_REPLACE_MEMSET) |
955 | state->memset_func = jit_address(addr3); | |
d16005f8 PC |
956 | state->get_next_block = jit_address(addr); |
957 | ||
958 | if (ENABLE_DISASSEMBLER) { | |
959 | pr_debug("Dispatcher block:\n"); | |
960 | jit_disassemble(); | |
961 | } | |
962 | ||
963 | /* We're done! */ | |
964 | jit_clear_state(); | |
965 | return block; | |
966 | ||
967 | err_free_block: | |
968 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); | |
969 | err_no_mem: | |
970 | pr_err("Unable to compile dispatcher: Out of memory\n"); | |
971 | return NULL; | |
972 | } | |
973 | ||
974 | union code lightrec_read_opcode(struct lightrec_state *state, u32 pc) | |
975 | { | |
fd58fa32 | 976 | void *host = NULL; |
d16005f8 | 977 | |
98fa08a5 | 978 | lightrec_get_map(state, &host, kunseg(pc)); |
d16005f8 | 979 | |
98fa08a5 PC |
980 | const u32 *code = (u32 *)host; |
981 | return (union code) *code; | |
982 | } | |
d16005f8 | 983 | |
98fa08a5 PC |
984 | unsigned int lightrec_cycles_of_opcode(union code code) |
985 | { | |
986 | return 2; | |
987 | } | |
d16005f8 | 988 | |
98fa08a5 PC |
989 | void lightrec_free_opcode_list(struct lightrec_state *state, struct block *block) |
990 | { | |
991 | lightrec_free(state, MEM_FOR_IR, | |
992 | sizeof(*block->opcode_list) * block->nb_ops, | |
993 | block->opcode_list); | |
994 | } | |
995 | ||
996 | static unsigned int lightrec_get_mips_block_len(const u32 *src) | |
997 | { | |
998 | unsigned int i; | |
999 | union code c; | |
1000 | ||
1001 | for (i = 1; ; i++) { | |
1002 | c.opcode = LE32TOH(*src++); | |
1003 | ||
1004 | if (is_syscall(c)) | |
1005 | return i; | |
1006 | ||
1007 | if (is_unconditional_jump(c)) | |
1008 | return i + 1; | |
1009 | } | |
1010 | } | |
1011 | ||
1012 | static struct opcode * lightrec_disassemble(struct lightrec_state *state, | |
1013 | const u32 *src, unsigned int *len) | |
1014 | { | |
1015 | struct opcode *list; | |
1016 | unsigned int i, length; | |
1017 | ||
1018 | length = lightrec_get_mips_block_len(src); | |
1019 | ||
1020 | list = lightrec_malloc(state, MEM_FOR_IR, sizeof(*list) * length); | |
1021 | if (!list) { | |
1022 | pr_err("Unable to allocate memory\n"); | |
1023 | return NULL; | |
1024 | } | |
1025 | ||
1026 | for (i = 0; i < length; i++) { | |
1027 | list[i].opcode = LE32TOH(src[i]); | |
1028 | list[i].flags = 0; | |
1029 | } | |
1030 | ||
1031 | *len = length * sizeof(u32); | |
1032 | ||
1033 | return list; | |
d16005f8 PC |
1034 | } |
1035 | ||
1036 | static struct block * lightrec_precompile_block(struct lightrec_state *state, | |
1037 | u32 pc) | |
1038 | { | |
1039 | struct opcode *list; | |
1040 | struct block *block; | |
98fa08a5 PC |
1041 | void *host; |
1042 | const struct lightrec_mem_map *map = lightrec_get_map(state, &host, kunseg(pc)); | |
1043 | const u32 *code = (u32 *) host; | |
d16005f8 | 1044 | unsigned int length; |
98fa08a5 | 1045 | bool fully_tagged; |
d16005f8 PC |
1046 | |
1047 | if (!map) | |
1048 | return NULL; | |
1049 | ||
d16005f8 PC |
1050 | block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block)); |
1051 | if (!block) { | |
1052 | pr_err("Unable to recompile block: Out of memory\n"); | |
1053 | return NULL; | |
1054 | } | |
1055 | ||
1056 | list = lightrec_disassemble(state, code, &length); | |
1057 | if (!list) { | |
1058 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); | |
1059 | return NULL; | |
1060 | } | |
1061 | ||
1062 | block->pc = pc; | |
d16005f8 PC |
1063 | block->_jit = NULL; |
1064 | block->function = NULL; | |
1065 | block->opcode_list = list; | |
98fa08a5 | 1066 | block->code = code; |
d16005f8 PC |
1067 | block->next = NULL; |
1068 | block->flags = 0; | |
1069 | block->code_size = 0; | |
1070 | #if ENABLE_THREADED_COMPILER | |
1071 | block->op_list_freed = (atomic_flag)ATOMIC_FLAG_INIT; | |
1072 | #endif | |
1073 | block->nb_ops = length / sizeof(u32); | |
1074 | ||
98fa08a5 | 1075 | lightrec_optimize(state, block); |
d16005f8 PC |
1076 | |
1077 | length = block->nb_ops * sizeof(u32); | |
1078 | ||
1079 | lightrec_register(MEM_FOR_MIPS_CODE, length); | |
1080 | ||
1081 | if (ENABLE_DISASSEMBLER) { | |
98fa08a5 PC |
1082 | pr_debug("Disassembled block at PC: 0x%08x\n", block->pc); |
1083 | lightrec_print_disassembly(block, code); | |
d16005f8 PC |
1084 | } |
1085 | ||
98fa08a5 | 1086 | pr_debug("Block size: %hu opcodes\n", block->nb_ops); |
d16005f8 PC |
1087 | |
1088 | /* If the first opcode is an 'impossible' branch, never compile the | |
1089 | * block */ | |
98fa08a5 | 1090 | if (should_emulate(block->opcode_list)) |
d16005f8 PC |
1091 | block->flags |= BLOCK_NEVER_COMPILE; |
1092 | ||
98fa08a5 PC |
1093 | fully_tagged = lightrec_block_is_fully_tagged(block); |
1094 | if (fully_tagged) | |
1095 | block->flags |= BLOCK_FULLY_TAGGED; | |
1096 | ||
1097 | if (OPT_REPLACE_MEMSET && (block->flags & BLOCK_IS_MEMSET)) | |
1098 | state->code_lut[lut_offset(pc)] = state->memset_func; | |
1099 | ||
d16005f8 PC |
1100 | block->hash = lightrec_calculate_block_hash(block); |
1101 | ||
a59e5536 | 1102 | pr_debug("Recompile count: %u\n", state->nb_precompile++); |
1103 | ||
d16005f8 PC |
1104 | return block; |
1105 | } | |
1106 | ||
98fa08a5 | 1107 | static bool lightrec_block_is_fully_tagged(const struct block *block) |
d16005f8 | 1108 | { |
98fa08a5 PC |
1109 | const struct opcode *op; |
1110 | unsigned int i; | |
1111 | ||
1112 | for (i = 0; i < block->nb_ops; i++) { | |
1113 | op = &block->opcode_list[i]; | |
d16005f8 | 1114 | |
d16005f8 PC |
1115 | /* Verify that all load/stores of the opcode list |
1116 | * Check all loads/stores of the opcode list and mark the | |
1117 | * block as fully compiled if they all have been tagged. */ | |
1118 | switch (op->c.i.op) { | |
1119 | case OP_LB: | |
1120 | case OP_LH: | |
1121 | case OP_LWL: | |
1122 | case OP_LW: | |
1123 | case OP_LBU: | |
1124 | case OP_LHU: | |
1125 | case OP_LWR: | |
1126 | case OP_SB: | |
1127 | case OP_SH: | |
1128 | case OP_SWL: | |
1129 | case OP_SW: | |
1130 | case OP_SWR: | |
1131 | case OP_LWC2: | |
1132 | case OP_SWC2: | |
1133 | if (!(op->flags & (LIGHTREC_DIRECT_IO | | |
1134 | LIGHTREC_HW_IO))) | |
1135 | return false; | |
1136 | default: /* fall-through */ | |
1137 | continue; | |
1138 | } | |
1139 | } | |
1140 | ||
1141 | return true; | |
1142 | } | |
1143 | ||
98fa08a5 | 1144 | static void lightrec_reap_block(struct lightrec_state *state, void *data) |
a59e5536 | 1145 | { |
1146 | struct block *block = data; | |
1147 | ||
1148 | pr_debug("Reap dead block at PC 0x%08x\n", block->pc); | |
98fa08a5 PC |
1149 | lightrec_unregister_block(state->block_cache, block); |
1150 | lightrec_free_block(state, block); | |
a59e5536 | 1151 | } |
1152 | ||
98fa08a5 | 1153 | static void lightrec_reap_jit(struct lightrec_state *state, void *data) |
a59e5536 | 1154 | { |
1155 | _jit_destroy_state(data); | |
1156 | } | |
1157 | ||
98fa08a5 PC |
1158 | int lightrec_compile_block(struct lightrec_cstate *cstate, |
1159 | struct block *block) | |
d16005f8 | 1160 | { |
98fa08a5 | 1161 | struct lightrec_state *state = cstate->state; |
a59e5536 | 1162 | struct lightrec_branch_target *target; |
d16005f8 | 1163 | bool op_list_freed = false, fully_tagged = false; |
a59e5536 | 1164 | struct block *block2; |
d16005f8 | 1165 | struct opcode *elm; |
a59e5536 | 1166 | jit_state_t *_jit, *oldjit; |
d16005f8 PC |
1167 | jit_node_t *start_of_block; |
1168 | bool skip_next = false; | |
1169 | jit_word_t code_size; | |
1170 | unsigned int i, j; | |
98fa08a5 | 1171 | u32 offset; |
d16005f8 PC |
1172 | |
1173 | fully_tagged = lightrec_block_is_fully_tagged(block); | |
1174 | if (fully_tagged) | |
1175 | block->flags |= BLOCK_FULLY_TAGGED; | |
1176 | ||
1177 | _jit = jit_new_state(); | |
1178 | if (!_jit) | |
1179 | return -ENOMEM; | |
1180 | ||
a59e5536 | 1181 | oldjit = block->_jit; |
d16005f8 PC |
1182 | block->_jit = _jit; |
1183 | ||
98fa08a5 PC |
1184 | lightrec_regcache_reset(cstate->reg_cache); |
1185 | cstate->cycles = 0; | |
1186 | cstate->nb_branches = 0; | |
1187 | cstate->nb_local_branches = 0; | |
1188 | cstate->nb_targets = 0; | |
d16005f8 PC |
1189 | |
1190 | jit_prolog(); | |
1191 | jit_tramp(256); | |
1192 | ||
1193 | start_of_block = jit_label(); | |
1194 | ||
98fa08a5 PC |
1195 | for (i = 0; i < block->nb_ops; i++) { |
1196 | elm = &block->opcode_list[i]; | |
d16005f8 PC |
1197 | |
1198 | if (skip_next) { | |
1199 | skip_next = false; | |
1200 | continue; | |
1201 | } | |
1202 | ||
98fa08a5 | 1203 | cstate->cycles += lightrec_cycles_of_opcode(elm->c); |
d16005f8 | 1204 | |
98fa08a5 | 1205 | if (should_emulate(elm)) { |
d16005f8 | 1206 | pr_debug("Branch at offset 0x%x will be emulated\n", |
98fa08a5 PC |
1207 | i << 2); |
1208 | ||
1209 | lightrec_emit_eob(cstate, block, i, false); | |
d16005f8 | 1210 | skip_next = !(elm->flags & LIGHTREC_NO_DS); |
98fa08a5 PC |
1211 | } else { |
1212 | lightrec_rec_opcode(cstate, block, i); | |
d16005f8 PC |
1213 | skip_next = has_delay_slot(elm->c) && |
1214 | !(elm->flags & LIGHTREC_NO_DS); | |
1215 | #if _WIN32 | |
1216 | /* FIXME: GNU Lightning on Windows seems to use our | |
1217 | * mapped registers as temporaries. Until the actual bug | |
1218 | * is found and fixed, unconditionally mark our | |
1219 | * registers as live here. */ | |
98fa08a5 | 1220 | lightrec_regcache_mark_live(cstate->reg_cache, _jit); |
d16005f8 PC |
1221 | #endif |
1222 | } | |
1223 | } | |
1224 | ||
98fa08a5 PC |
1225 | for (i = 0; i < cstate->nb_branches; i++) |
1226 | jit_patch(cstate->branches[i]); | |
d16005f8 | 1227 | |
98fa08a5 PC |
1228 | for (i = 0; i < cstate->nb_local_branches; i++) { |
1229 | struct lightrec_branch *branch = &cstate->local_branches[i]; | |
d16005f8 PC |
1230 | |
1231 | pr_debug("Patch local branch to offset 0x%x\n", | |
1232 | branch->target << 2); | |
1233 | ||
1234 | if (branch->target == 0) { | |
1235 | jit_patch_at(branch->branch, start_of_block); | |
1236 | continue; | |
1237 | } | |
1238 | ||
98fa08a5 PC |
1239 | for (j = 0; j < cstate->nb_targets; j++) { |
1240 | if (cstate->targets[j].offset == branch->target) { | |
d16005f8 | 1241 | jit_patch_at(branch->branch, |
98fa08a5 | 1242 | cstate->targets[j].label); |
d16005f8 PC |
1243 | break; |
1244 | } | |
1245 | } | |
1246 | ||
98fa08a5 | 1247 | if (j == cstate->nb_targets) |
d16005f8 PC |
1248 | pr_err("Unable to find branch target\n"); |
1249 | } | |
1250 | ||
1251 | jit_ldxi(JIT_R0, LIGHTREC_REG_STATE, | |
1252 | offsetof(struct lightrec_state, eob_wrapper_func)); | |
1253 | ||
1254 | jit_jmpr(JIT_R0); | |
1255 | ||
1256 | jit_ret(); | |
1257 | jit_epilog(); | |
1258 | ||
1259 | block->function = jit_emit(); | |
a59e5536 | 1260 | block->flags &= ~BLOCK_SHOULD_RECOMPILE; |
d16005f8 PC |
1261 | |
1262 | /* Add compiled function to the LUT */ | |
1263 | state->code_lut[lut_offset(block->pc)] = block->function; | |
1264 | ||
98fa08a5 PC |
1265 | if (ENABLE_THREADED_COMPILER) { |
1266 | /* Since we might try to reap the same block multiple times, | |
1267 | * we need the reaper to wait until everything has been | |
1268 | * submitted, so that the duplicate entries can be dropped. */ | |
1269 | lightrec_reaper_pause(state->reaper); | |
a59e5536 | 1270 | } |
1271 | ||
1272 | /* Detect old blocks that have been covered by the new one */ | |
98fa08a5 PC |
1273 | for (i = 0; i < cstate->nb_targets; i++) { |
1274 | target = &cstate->targets[i]; | |
a59e5536 | 1275 | |
1276 | if (!target->offset) | |
1277 | continue; | |
1278 | ||
1279 | offset = block->pc + target->offset * sizeof(u32); | |
1280 | block2 = lightrec_find_block(state->block_cache, offset); | |
1281 | if (block2) { | |
1282 | /* No need to check if block2 is compilable - it must | |
1283 | * be, otherwise block wouldn't be compilable either */ | |
1284 | ||
98fa08a5 PC |
1285 | /* Set the "block dead" flag to prevent the dynarec from |
1286 | * recompiling this block */ | |
a59e5536 | 1287 | block2->flags |= BLOCK_IS_DEAD; |
1288 | ||
98fa08a5 PC |
1289 | /* If block2 was pending for compilation, cancel it. |
1290 | * If it's being compiled right now, wait until it | |
1291 | * finishes. */ | |
1292 | if (ENABLE_THREADED_COMPILER) | |
1293 | lightrec_recompiler_remove(state->rec, block2); | |
fd58fa32 | 1294 | } |
98fa08a5 | 1295 | |
fd58fa32 PC |
1296 | /* We know from now on that block2 (if present) isn't going to |
1297 | * be compiled. We can override the LUT entry with our new | |
1298 | * block's entry point. */ | |
1299 | offset = lut_offset(block->pc) + target->offset; | |
1300 | state->code_lut[offset] = jit_address(target->label); | |
98fa08a5 | 1301 | |
fd58fa32 | 1302 | if (block2) { |
a59e5536 | 1303 | pr_debug("Reap block 0x%08x as it's covered by block " |
1304 | "0x%08x\n", block2->pc, block->pc); | |
1305 | ||
98fa08a5 | 1306 | /* Finally, reap the block. */ |
a59e5536 | 1307 | if (ENABLE_THREADED_COMPILER) { |
a59e5536 | 1308 | lightrec_reaper_add(state->reaper, |
1309 | lightrec_reap_block, | |
1310 | block2); | |
1311 | } else { | |
98fa08a5 PC |
1312 | lightrec_unregister_block(state->block_cache, block2); |
1313 | lightrec_free_block(state, block2); | |
a59e5536 | 1314 | } |
1315 | } | |
1316 | } | |
1317 | ||
b19ddc79 | 1318 | if (ENABLE_THREADED_COMPILER) |
98fa08a5 PC |
1319 | lightrec_reaper_continue(state->reaper); |
1320 | ||
d16005f8 PC |
1321 | jit_get_code(&code_size); |
1322 | lightrec_register(MEM_FOR_CODE, code_size); | |
1323 | ||
1324 | block->code_size = code_size; | |
1325 | ||
1326 | if (ENABLE_DISASSEMBLER) { | |
98fa08a5 | 1327 | pr_debug("Compiling block at PC: 0x%08x\n", block->pc); |
d16005f8 PC |
1328 | jit_disassemble(); |
1329 | } | |
1330 | ||
1331 | jit_clear_state(); | |
1332 | ||
1333 | #if ENABLE_THREADED_COMPILER | |
1334 | if (fully_tagged) | |
1335 | op_list_freed = atomic_flag_test_and_set(&block->op_list_freed); | |
1336 | #endif | |
1337 | if (fully_tagged && !op_list_freed) { | |
1338 | pr_debug("Block PC 0x%08x is fully tagged" | |
1339 | " - free opcode list\n", block->pc); | |
98fa08a5 | 1340 | lightrec_free_opcode_list(state, block); |
d16005f8 PC |
1341 | block->opcode_list = NULL; |
1342 | } | |
1343 | ||
a59e5536 | 1344 | if (oldjit) { |
1345 | pr_debug("Block 0x%08x recompiled, reaping old jit context.\n", | |
1346 | block->pc); | |
1347 | ||
1348 | if (ENABLE_THREADED_COMPILER) | |
1349 | lightrec_reaper_add(state->reaper, | |
1350 | lightrec_reap_jit, oldjit); | |
1351 | else | |
1352 | _jit_destroy_state(oldjit); | |
1353 | } | |
1354 | ||
d16005f8 PC |
1355 | return 0; |
1356 | } | |
1357 | ||
98fa08a5 PC |
1358 | static void lightrec_print_info(struct lightrec_state *state) |
1359 | { | |
1360 | if ((state->current_cycle & ~0xfffffff) != state->old_cycle_counter) { | |
1361 | pr_info("Lightrec RAM usage: IR %u KiB, CODE %u KiB, " | |
1362 | "MIPS %u KiB, TOTAL %u KiB, avg. IPI %f\n", | |
1363 | lightrec_get_mem_usage(MEM_FOR_IR) / 1024, | |
1364 | lightrec_get_mem_usage(MEM_FOR_CODE) / 1024, | |
1365 | lightrec_get_mem_usage(MEM_FOR_MIPS_CODE) / 1024, | |
1366 | lightrec_get_total_mem_usage() / 1024, | |
1367 | lightrec_get_average_ipi()); | |
1368 | state->old_cycle_counter = state->current_cycle & ~0xfffffff; | |
1369 | } | |
1370 | } | |
1371 | ||
d16005f8 PC |
1372 | u32 lightrec_execute(struct lightrec_state *state, u32 pc, u32 target_cycle) |
1373 | { | |
1374 | s32 (*func)(void *, s32) = (void *)state->dispatcher->function; | |
1375 | void *block_trace; | |
1376 | s32 cycles_delta; | |
1377 | ||
1378 | state->exit_flags = LIGHTREC_EXIT_NORMAL; | |
1379 | ||
1380 | /* Handle the cycle counter overflowing */ | |
1381 | if (unlikely(target_cycle < state->current_cycle)) | |
1382 | target_cycle = UINT_MAX; | |
1383 | ||
1384 | state->target_cycle = target_cycle; | |
98fa08a5 | 1385 | state->next_pc = pc; |
d16005f8 PC |
1386 | |
1387 | block_trace = get_next_block_func(state, pc); | |
1388 | if (block_trace) { | |
1389 | cycles_delta = state->target_cycle - state->current_cycle; | |
1390 | ||
1391 | cycles_delta = (*func)(block_trace, cycles_delta); | |
1392 | ||
1393 | state->current_cycle = state->target_cycle - cycles_delta; | |
1394 | } | |
1395 | ||
a59e5536 | 1396 | if (ENABLE_THREADED_COMPILER) |
1397 | lightrec_reaper_reap(state->reaper); | |
1398 | ||
98fa08a5 PC |
1399 | if (LOG_LEVEL >= INFO_L) |
1400 | lightrec_print_info(state); | |
1401 | ||
d16005f8 PC |
1402 | return state->next_pc; |
1403 | } | |
1404 | ||
1405 | u32 lightrec_execute_one(struct lightrec_state *state, u32 pc) | |
1406 | { | |
1407 | return lightrec_execute(state, pc, state->current_cycle); | |
1408 | } | |
1409 | ||
1410 | u32 lightrec_run_interpreter(struct lightrec_state *state, u32 pc) | |
1411 | { | |
1412 | struct block *block = lightrec_get_block(state, pc); | |
1413 | if (!block) | |
1414 | return 0; | |
1415 | ||
1416 | state->exit_flags = LIGHTREC_EXIT_NORMAL; | |
1417 | ||
98fa08a5 PC |
1418 | pc = lightrec_emulate_block(state, block, pc); |
1419 | ||
1420 | if (LOG_LEVEL >= INFO_L) | |
1421 | lightrec_print_info(state); | |
1422 | ||
1423 | return pc; | |
d16005f8 PC |
1424 | } |
1425 | ||
98fa08a5 | 1426 | void lightrec_free_block(struct lightrec_state *state, struct block *block) |
d16005f8 PC |
1427 | { |
1428 | lightrec_unregister(MEM_FOR_MIPS_CODE, block->nb_ops * sizeof(u32)); | |
1429 | if (block->opcode_list) | |
98fa08a5 | 1430 | lightrec_free_opcode_list(state, block); |
d16005f8 PC |
1431 | if (block->_jit) |
1432 | _jit_destroy_state(block->_jit); | |
1433 | lightrec_unregister(MEM_FOR_CODE, block->code_size); | |
98fa08a5 PC |
1434 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); |
1435 | } | |
1436 | ||
1437 | struct lightrec_cstate * lightrec_create_cstate(struct lightrec_state *state) | |
1438 | { | |
1439 | struct lightrec_cstate *cstate; | |
1440 | ||
1441 | cstate = lightrec_malloc(state, MEM_FOR_LIGHTREC, sizeof(*cstate)); | |
1442 | if (!cstate) | |
1443 | return NULL; | |
1444 | ||
1445 | cstate->reg_cache = lightrec_regcache_init(state); | |
1446 | if (!cstate->reg_cache) { | |
1447 | lightrec_free(state, MEM_FOR_LIGHTREC, sizeof(*cstate), cstate); | |
1448 | return NULL; | |
1449 | } | |
1450 | ||
1451 | cstate->state = state; | |
1452 | ||
1453 | return cstate; | |
1454 | } | |
1455 | ||
1456 | void lightrec_free_cstate(struct lightrec_cstate *cstate) | |
1457 | { | |
1458 | lightrec_free_regcache(cstate->reg_cache); | |
1459 | lightrec_free(cstate->state, MEM_FOR_LIGHTREC, sizeof(*cstate), cstate); | |
d16005f8 PC |
1460 | } |
1461 | ||
1462 | struct lightrec_state * lightrec_init(char *argv0, | |
1463 | const struct lightrec_mem_map *map, | |
1464 | size_t nb, | |
1465 | const struct lightrec_ops *ops) | |
1466 | { | |
1467 | struct lightrec_state *state; | |
1468 | ||
1469 | /* Sanity-check ops */ | |
98fa08a5 | 1470 | if (!ops || !ops->cop2_op || !ops->enable_ram) { |
d16005f8 PC |
1471 | pr_err("Missing callbacks in lightrec_ops structure\n"); |
1472 | return NULL; | |
1473 | } | |
1474 | ||
1475 | init_jit(argv0); | |
1476 | ||
1477 | state = calloc(1, sizeof(*state) + | |
1478 | sizeof(*state->code_lut) * CODE_LUT_SIZE); | |
1479 | if (!state) | |
1480 | goto err_finish_jit; | |
1481 | ||
1482 | lightrec_register(MEM_FOR_LIGHTREC, sizeof(*state) + | |
1483 | sizeof(*state->code_lut) * CODE_LUT_SIZE); | |
1484 | ||
1485 | #if ENABLE_TINYMM | |
1486 | state->tinymm = tinymm_init(malloc, free, 4096); | |
1487 | if (!state->tinymm) | |
1488 | goto err_free_state; | |
1489 | #endif | |
1490 | ||
1491 | state->block_cache = lightrec_blockcache_init(state); | |
1492 | if (!state->block_cache) | |
1493 | goto err_free_tinymm; | |
1494 | ||
d16005f8 PC |
1495 | if (ENABLE_THREADED_COMPILER) { |
1496 | state->rec = lightrec_recompiler_init(state); | |
1497 | if (!state->rec) | |
98fa08a5 | 1498 | goto err_free_block_cache; |
a59e5536 | 1499 | |
1500 | state->reaper = lightrec_reaper_init(state); | |
1501 | if (!state->reaper) | |
1502 | goto err_free_recompiler; | |
98fa08a5 PC |
1503 | } else { |
1504 | state->cstate = lightrec_create_cstate(state); | |
1505 | if (!state->cstate) | |
1506 | goto err_free_block_cache; | |
d16005f8 PC |
1507 | } |
1508 | ||
1509 | state->nb_maps = nb; | |
1510 | state->maps = map; | |
1511 | ||
1512 | memcpy(&state->ops, ops, sizeof(*ops)); | |
1513 | ||
1514 | state->dispatcher = generate_dispatcher(state); | |
1515 | if (!state->dispatcher) | |
a59e5536 | 1516 | goto err_free_reaper; |
d16005f8 | 1517 | |
98fa08a5 PC |
1518 | state->c_wrapper_block = generate_wrapper(state); |
1519 | if (!state->c_wrapper_block) | |
d16005f8 PC |
1520 | goto err_free_dispatcher; |
1521 | ||
98fa08a5 PC |
1522 | state->c_wrappers[C_WRAPPER_RW] = lightrec_rw_cb; |
1523 | state->c_wrappers[C_WRAPPER_RW_GENERIC] = lightrec_rw_generic_cb; | |
98fa08a5 PC |
1524 | state->c_wrappers[C_WRAPPER_MTC] = lightrec_mtc_cb; |
1525 | state->c_wrappers[C_WRAPPER_CP] = lightrec_cp; | |
1526 | state->c_wrappers[C_WRAPPER_SYSCALL] = lightrec_syscall_cb; | |
1527 | state->c_wrappers[C_WRAPPER_BREAK] = lightrec_break_cb; | |
d16005f8 PC |
1528 | |
1529 | map = &state->maps[PSX_MAP_BIOS]; | |
1530 | state->offset_bios = (uintptr_t)map->address - map->pc; | |
1531 | ||
1532 | map = &state->maps[PSX_MAP_SCRATCH_PAD]; | |
1533 | state->offset_scratch = (uintptr_t)map->address - map->pc; | |
1534 | ||
1535 | map = &state->maps[PSX_MAP_KERNEL_USER_RAM]; | |
1536 | state->offset_ram = (uintptr_t)map->address - map->pc; | |
1537 | ||
1538 | if (state->maps[PSX_MAP_MIRROR1].address == map->address + 0x200000 && | |
1539 | state->maps[PSX_MAP_MIRROR2].address == map->address + 0x400000 && | |
1540 | state->maps[PSX_MAP_MIRROR3].address == map->address + 0x600000) | |
1541 | state->mirrors_mapped = true; | |
1542 | ||
98fa08a5 PC |
1543 | if (state->offset_bios == 0 && |
1544 | state->offset_scratch == 0 && | |
1545 | state->offset_ram == 0 && | |
1546 | state->mirrors_mapped) { | |
1547 | pr_info("Memory map is perfect. Emitted code will be best.\n"); | |
1548 | } else { | |
1549 | pr_info("Memory map is sub-par. Emitted code will be slow.\n"); | |
1550 | } | |
1551 | ||
d16005f8 PC |
1552 | return state; |
1553 | ||
d16005f8 | 1554 | err_free_dispatcher: |
98fa08a5 | 1555 | lightrec_free_block(state, state->dispatcher); |
a59e5536 | 1556 | err_free_reaper: |
1557 | if (ENABLE_THREADED_COMPILER) | |
1558 | lightrec_reaper_destroy(state->reaper); | |
d16005f8 PC |
1559 | err_free_recompiler: |
1560 | if (ENABLE_THREADED_COMPILER) | |
1561 | lightrec_free_recompiler(state->rec); | |
98fa08a5 PC |
1562 | else |
1563 | lightrec_free_cstate(state->cstate); | |
d16005f8 PC |
1564 | err_free_block_cache: |
1565 | lightrec_free_block_cache(state->block_cache); | |
1566 | err_free_tinymm: | |
1567 | #if ENABLE_TINYMM | |
1568 | tinymm_shutdown(state->tinymm); | |
1569 | err_free_state: | |
1570 | #endif | |
1571 | lightrec_unregister(MEM_FOR_LIGHTREC, sizeof(*state) + | |
1572 | sizeof(*state->code_lut) * CODE_LUT_SIZE); | |
1573 | free(state); | |
1574 | err_finish_jit: | |
1575 | finish_jit(); | |
1576 | return NULL; | |
1577 | } | |
1578 | ||
1579 | void lightrec_destroy(struct lightrec_state *state) | |
1580 | { | |
98fa08a5 PC |
1581 | /* Force a print info on destroy*/ |
1582 | state->current_cycle = ~state->current_cycle; | |
1583 | lightrec_print_info(state); | |
1584 | ||
a59e5536 | 1585 | if (ENABLE_THREADED_COMPILER) { |
d16005f8 | 1586 | lightrec_free_recompiler(state->rec); |
a59e5536 | 1587 | lightrec_reaper_destroy(state->reaper); |
98fa08a5 PC |
1588 | } else { |
1589 | lightrec_free_cstate(state->cstate); | |
a59e5536 | 1590 | } |
d16005f8 | 1591 | |
d16005f8 | 1592 | lightrec_free_block_cache(state->block_cache); |
98fa08a5 PC |
1593 | lightrec_free_block(state, state->dispatcher); |
1594 | lightrec_free_block(state, state->c_wrapper_block); | |
d16005f8 PC |
1595 | finish_jit(); |
1596 | ||
1597 | #if ENABLE_TINYMM | |
1598 | tinymm_shutdown(state->tinymm); | |
1599 | #endif | |
1600 | lightrec_unregister(MEM_FOR_LIGHTREC, sizeof(*state) + | |
1601 | sizeof(*state->code_lut) * CODE_LUT_SIZE); | |
1602 | free(state); | |
1603 | } | |
1604 | ||
1605 | void lightrec_invalidate(struct lightrec_state *state, u32 addr, u32 len) | |
1606 | { | |
1607 | u32 kaddr = kunseg(addr & ~0x3); | |
98fa08a5 | 1608 | const struct lightrec_mem_map *map = lightrec_get_map(state, NULL, kaddr); |
d16005f8 PC |
1609 | |
1610 | if (map) { | |
d16005f8 PC |
1611 | if (map != &state->maps[PSX_MAP_KERNEL_USER_RAM]) |
1612 | return; | |
1613 | ||
1614 | /* Handle mirrors */ | |
1615 | kaddr &= (state->maps[PSX_MAP_KERNEL_USER_RAM].length - 1); | |
1616 | ||
98fa08a5 | 1617 | lightrec_invalidate_map(state, map, kaddr, len); |
d16005f8 PC |
1618 | } |
1619 | } | |
1620 | ||
1621 | void lightrec_invalidate_all(struct lightrec_state *state) | |
1622 | { | |
1623 | memset(state->code_lut, 0, sizeof(*state->code_lut) * CODE_LUT_SIZE); | |
1624 | } | |
1625 | ||
1626 | void lightrec_set_invalidate_mode(struct lightrec_state *state, bool dma_only) | |
1627 | { | |
1628 | if (state->invalidate_from_dma_only != dma_only) | |
1629 | lightrec_invalidate_all(state); | |
1630 | ||
1631 | state->invalidate_from_dma_only = dma_only; | |
1632 | } | |
1633 | ||
1634 | void lightrec_set_exit_flags(struct lightrec_state *state, u32 flags) | |
1635 | { | |
1636 | if (flags != LIGHTREC_EXIT_NORMAL) { | |
1637 | state->exit_flags |= flags; | |
1638 | state->target_cycle = state->current_cycle; | |
1639 | } | |
1640 | } | |
1641 | ||
1642 | u32 lightrec_exit_flags(struct lightrec_state *state) | |
1643 | { | |
1644 | return state->exit_flags; | |
1645 | } | |
1646 | ||
d16005f8 PC |
1647 | u32 lightrec_current_cycle_count(const struct lightrec_state *state) |
1648 | { | |
1649 | return state->current_cycle; | |
1650 | } | |
1651 | ||
1652 | void lightrec_reset_cycle_count(struct lightrec_state *state, u32 cycles) | |
1653 | { | |
1654 | state->current_cycle = cycles; | |
1655 | ||
1656 | if (state->target_cycle < cycles) | |
1657 | state->target_cycle = cycles; | |
1658 | } | |
1659 | ||
1660 | void lightrec_set_target_cycle_count(struct lightrec_state *state, u32 cycles) | |
1661 | { | |
1662 | if (state->exit_flags == LIGHTREC_EXIT_NORMAL) { | |
1663 | if (cycles < state->current_cycle) | |
1664 | cycles = state->current_cycle; | |
1665 | ||
1666 | state->target_cycle = cycles; | |
1667 | } | |
1668 | } | |
98fa08a5 PC |
1669 | |
1670 | struct lightrec_registers * lightrec_get_registers(struct lightrec_state *state) | |
1671 | { | |
1672 | return &state->regs; | |
1673 | } |