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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" | |
02487de7 | 19 | #include "tlsf/tlsf.h" |
d16005f8 PC |
20 | |
21 | #include <errno.h> | |
98fa08a5 | 22 | #include <inttypes.h> |
d16005f8 PC |
23 | #include <limits.h> |
24 | #if ENABLE_THREADED_COMPILER | |
25 | #include <stdatomic.h> | |
26 | #endif | |
27 | #include <stdbool.h> | |
28 | #include <stddef.h> | |
29 | #include <string.h> | |
30 | #if ENABLE_TINYMM | |
31 | #include <tinymm.h> | |
32 | #endif | |
33 | ||
34 | #define GENMASK(h, l) \ | |
35 | (((uintptr_t)-1 << (l)) & ((uintptr_t)-1 >> (__WORDSIZE - 1 - (h)))) | |
36 | ||
37 | static struct block * lightrec_precompile_block(struct lightrec_state *state, | |
38 | u32 pc); | |
98fa08a5 PC |
39 | static bool lightrec_block_is_fully_tagged(const struct block *block); |
40 | ||
41 | static void lightrec_mtc2(struct lightrec_state *state, u8 reg, u32 data); | |
42 | static u32 lightrec_mfc2(struct lightrec_state *state, u8 reg); | |
d16005f8 | 43 | |
a59e5536 | 44 | static void lightrec_default_sb(struct lightrec_state *state, u32 opcode, |
45 | void *host, u32 addr, u8 data) | |
46 | { | |
47 | *(u8 *)host = data; | |
48 | ||
49 | if (!state->invalidate_from_dma_only) | |
50 | lightrec_invalidate(state, addr, 1); | |
51 | } | |
52 | ||
53 | static void lightrec_default_sh(struct lightrec_state *state, u32 opcode, | |
54 | void *host, u32 addr, u16 data) | |
55 | { | |
56 | *(u16 *)host = HTOLE16(data); | |
57 | ||
58 | if (!state->invalidate_from_dma_only) | |
59 | lightrec_invalidate(state, addr, 2); | |
60 | } | |
61 | ||
62 | static void lightrec_default_sw(struct lightrec_state *state, u32 opcode, | |
63 | void *host, u32 addr, u32 data) | |
64 | { | |
65 | *(u32 *)host = HTOLE32(data); | |
66 | ||
67 | if (!state->invalidate_from_dma_only) | |
68 | lightrec_invalidate(state, addr, 4); | |
69 | } | |
70 | ||
71 | static u8 lightrec_default_lb(struct lightrec_state *state, | |
72 | u32 opcode, void *host, u32 addr) | |
73 | { | |
74 | return *(u8 *)host; | |
75 | } | |
76 | ||
77 | static u16 lightrec_default_lh(struct lightrec_state *state, | |
78 | u32 opcode, void *host, u32 addr) | |
79 | { | |
80 | return LE16TOH(*(u16 *)host); | |
81 | } | |
82 | ||
83 | static u32 lightrec_default_lw(struct lightrec_state *state, | |
84 | u32 opcode, void *host, u32 addr) | |
85 | { | |
86 | return LE32TOH(*(u32 *)host); | |
87 | } | |
88 | ||
89 | static const struct lightrec_mem_map_ops lightrec_default_ops = { | |
90 | .sb = lightrec_default_sb, | |
91 | .sh = lightrec_default_sh, | |
92 | .sw = lightrec_default_sw, | |
93 | .lb = lightrec_default_lb, | |
94 | .lh = lightrec_default_lh, | |
95 | .lw = lightrec_default_lw, | |
96 | }; | |
97 | ||
98fa08a5 PC |
98 | static void __segfault_cb(struct lightrec_state *state, u32 addr, |
99 | const struct block *block) | |
d16005f8 PC |
100 | { |
101 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_SEGFAULT); | |
102 | pr_err("Segmentation fault in recompiled code: invalid " | |
103 | "load/store at address 0x%08x\n", addr); | |
98fa08a5 PC |
104 | if (block) |
105 | pr_err("Was executing block PC 0x%08x\n", block->pc); | |
d16005f8 PC |
106 | } |
107 | ||
a59e5536 | 108 | static void lightrec_swl(struct lightrec_state *state, |
109 | const struct lightrec_mem_map_ops *ops, | |
110 | u32 opcode, void *host, u32 addr, u32 data) | |
d16005f8 | 111 | { |
a59e5536 | 112 | unsigned int shift = addr & 0x3; |
113 | unsigned int mask = GENMASK(31, (shift + 1) * 8); | |
114 | u32 old_data; | |
115 | ||
116 | /* Align to 32 bits */ | |
117 | addr &= ~3; | |
118 | host = (void *)((uintptr_t)host & ~3); | |
119 | ||
120 | old_data = ops->lw(state, opcode, host, addr); | |
121 | ||
122 | data = (data >> ((3 - shift) * 8)) | (old_data & mask); | |
123 | ||
124 | ops->sw(state, opcode, host, addr, data); | |
125 | } | |
126 | ||
127 | static void lightrec_swr(struct lightrec_state *state, | |
128 | const struct lightrec_mem_map_ops *ops, | |
129 | u32 opcode, void *host, u32 addr, u32 data) | |
130 | { | |
131 | unsigned int shift = addr & 0x3; | |
132 | unsigned int mask = (1 << (shift * 8)) - 1; | |
133 | u32 old_data; | |
134 | ||
135 | /* Align to 32 bits */ | |
136 | addr &= ~3; | |
137 | host = (void *)((uintptr_t)host & ~3); | |
138 | ||
139 | old_data = ops->lw(state, opcode, host, addr); | |
140 | ||
141 | data = (data << (shift * 8)) | (old_data & mask); | |
142 | ||
143 | ops->sw(state, opcode, host, addr, data); | |
144 | } | |
145 | ||
146 | static void lightrec_swc2(struct lightrec_state *state, union code op, | |
147 | const struct lightrec_mem_map_ops *ops, | |
148 | void *host, u32 addr) | |
149 | { | |
98fa08a5 | 150 | u32 data = lightrec_mfc2(state, op.i.rt); |
a59e5536 | 151 | |
152 | ops->sw(state, op.opcode, host, addr, data); | |
153 | } | |
154 | ||
155 | static u32 lightrec_lwl(struct lightrec_state *state, | |
156 | const struct lightrec_mem_map_ops *ops, | |
157 | u32 opcode, void *host, u32 addr, u32 data) | |
158 | { | |
159 | unsigned int shift = addr & 0x3; | |
160 | unsigned int mask = (1 << (24 - shift * 8)) - 1; | |
161 | u32 old_data; | |
162 | ||
163 | /* Align to 32 bits */ | |
164 | addr &= ~3; | |
165 | host = (void *)((uintptr_t)host & ~3); | |
166 | ||
167 | old_data = ops->lw(state, opcode, host, addr); | |
168 | ||
169 | return (data & mask) | (old_data << (24 - shift * 8)); | |
170 | } | |
171 | ||
172 | static u32 lightrec_lwr(struct lightrec_state *state, | |
173 | const struct lightrec_mem_map_ops *ops, | |
174 | u32 opcode, void *host, u32 addr, u32 data) | |
175 | { | |
176 | unsigned int shift = addr & 0x3; | |
177 | unsigned int mask = GENMASK(31, 32 - shift * 8); | |
178 | u32 old_data; | |
179 | ||
180 | /* Align to 32 bits */ | |
181 | addr &= ~3; | |
182 | host = (void *)((uintptr_t)host & ~3); | |
183 | ||
184 | old_data = ops->lw(state, opcode, host, addr); | |
185 | ||
186 | return (data & mask) | (old_data >> (shift * 8)); | |
187 | } | |
188 | ||
189 | static void lightrec_lwc2(struct lightrec_state *state, union code op, | |
190 | const struct lightrec_mem_map_ops *ops, | |
191 | void *host, u32 addr) | |
192 | { | |
193 | u32 data = ops->lw(state, op.opcode, host, addr); | |
194 | ||
98fa08a5 | 195 | lightrec_mtc2(state, op.i.rt, data); |
d16005f8 PC |
196 | } |
197 | ||
198 | static void lightrec_invalidate_map(struct lightrec_state *state, | |
98fa08a5 | 199 | const struct lightrec_mem_map *map, u32 addr, u32 len) |
d16005f8 | 200 | { |
98fa08a5 | 201 | if (map == &state->maps[PSX_MAP_KERNEL_USER_RAM]) { |
02487de7 PC |
202 | memset(lut_address(state, lut_offset(addr)), 0, |
203 | ((len + 3) / 4) * lut_elm_size(state)); | |
98fa08a5 | 204 | } |
d16005f8 PC |
205 | } |
206 | ||
02487de7 PC |
207 | enum psx_map |
208 | lightrec_get_map_idx(struct lightrec_state *state, u32 kaddr) | |
d16005f8 | 209 | { |
98fa08a5 | 210 | const struct lightrec_mem_map *map; |
d16005f8 PC |
211 | unsigned int i; |
212 | ||
213 | for (i = 0; i < state->nb_maps; i++) { | |
02487de7 | 214 | map = &state->maps[i]; |
d16005f8 | 215 | |
02487de7 PC |
216 | if (kaddr >= map->pc && kaddr < map->pc + map->length) |
217 | return (enum psx_map) i; | |
d16005f8 PC |
218 | } |
219 | ||
02487de7 PC |
220 | return PSX_MAP_UNKNOWN; |
221 | } | |
222 | ||
223 | const struct lightrec_mem_map * | |
224 | lightrec_get_map(struct lightrec_state *state, void **host, u32 kaddr) | |
225 | { | |
226 | const struct lightrec_mem_map *map; | |
227 | enum psx_map idx; | |
228 | u32 addr; | |
229 | ||
230 | idx = lightrec_get_map_idx(state, kaddr); | |
231 | if (idx == PSX_MAP_UNKNOWN) | |
98fa08a5 PC |
232 | return NULL; |
233 | ||
02487de7 | 234 | map = &state->maps[idx]; |
98fa08a5 PC |
235 | addr = kaddr - map->pc; |
236 | ||
237 | while (map->mirror_of) | |
238 | map = map->mirror_of; | |
239 | ||
240 | if (host) | |
241 | *host = map->address + addr; | |
242 | ||
243 | return map; | |
d16005f8 PC |
244 | } |
245 | ||
246 | u32 lightrec_rw(struct lightrec_state *state, union code op, | |
98fa08a5 | 247 | u32 addr, u32 data, u16 *flags, struct block *block) |
d16005f8 PC |
248 | { |
249 | const struct lightrec_mem_map *map; | |
a59e5536 | 250 | const struct lightrec_mem_map_ops *ops; |
98fa08a5 | 251 | u32 opcode = op.opcode; |
a59e5536 | 252 | void *host; |
d16005f8 PC |
253 | |
254 | addr += (s16) op.i.imm; | |
d16005f8 | 255 | |
98fa08a5 | 256 | map = lightrec_get_map(state, &host, kunseg(addr)); |
d16005f8 | 257 | if (!map) { |
98fa08a5 | 258 | __segfault_cb(state, addr, block); |
d16005f8 PC |
259 | return 0; |
260 | } | |
261 | ||
d16005f8 | 262 | if (unlikely(map->ops)) { |
22eee2ac PC |
263 | if (flags && !LIGHTREC_FLAGS_GET_IO_MODE(*flags)) |
264 | *flags |= LIGHTREC_IO_MODE(LIGHTREC_IO_HW); | |
d16005f8 | 265 | |
a59e5536 | 266 | ops = map->ops; |
267 | } else { | |
22eee2ac PC |
268 | if (flags && !LIGHTREC_FLAGS_GET_IO_MODE(*flags)) |
269 | *flags |= LIGHTREC_IO_MODE(LIGHTREC_IO_DIRECT); | |
d16005f8 | 270 | |
a59e5536 | 271 | ops = &lightrec_default_ops; |
272 | } | |
d16005f8 PC |
273 | |
274 | switch (op.i.op) { | |
275 | case OP_SB: | |
a59e5536 | 276 | ops->sb(state, opcode, host, addr, (u8) data); |
d16005f8 PC |
277 | return 0; |
278 | case OP_SH: | |
a59e5536 | 279 | ops->sh(state, opcode, host, addr, (u16) data); |
d16005f8 PC |
280 | return 0; |
281 | case OP_SWL: | |
a59e5536 | 282 | lightrec_swl(state, ops, opcode, host, addr, data); |
d16005f8 PC |
283 | return 0; |
284 | case OP_SWR: | |
a59e5536 | 285 | lightrec_swr(state, ops, opcode, host, addr, data); |
d16005f8 PC |
286 | return 0; |
287 | case OP_SW: | |
a59e5536 | 288 | ops->sw(state, opcode, host, addr, data); |
d16005f8 PC |
289 | return 0; |
290 | case OP_SWC2: | |
a59e5536 | 291 | lightrec_swc2(state, op, ops, host, addr); |
d16005f8 PC |
292 | return 0; |
293 | case OP_LB: | |
a59e5536 | 294 | return (s32) (s8) ops->lb(state, opcode, host, addr); |
d16005f8 | 295 | case OP_LBU: |
a59e5536 | 296 | return ops->lb(state, opcode, host, addr); |
d16005f8 | 297 | case OP_LH: |
a59e5536 | 298 | return (s32) (s16) ops->lh(state, opcode, host, addr); |
d16005f8 | 299 | case OP_LHU: |
a59e5536 | 300 | return ops->lh(state, opcode, host, addr); |
d16005f8 | 301 | case OP_LWC2: |
a59e5536 | 302 | lightrec_lwc2(state, op, ops, host, addr); |
d16005f8 | 303 | return 0; |
a59e5536 | 304 | case OP_LWL: |
305 | return lightrec_lwl(state, ops, opcode, host, addr, data); | |
306 | case OP_LWR: | |
307 | return lightrec_lwr(state, ops, opcode, host, addr, data); | |
d16005f8 PC |
308 | case OP_LW: |
309 | default: | |
a59e5536 | 310 | return ops->lw(state, opcode, host, addr); |
d16005f8 PC |
311 | } |
312 | } | |
313 | ||
314 | static void lightrec_rw_helper(struct lightrec_state *state, | |
98fa08a5 PC |
315 | union code op, u16 *flags, |
316 | struct block *block) | |
d16005f8 | 317 | { |
98fa08a5 PC |
318 | u32 ret = lightrec_rw(state, op, state->regs.gpr[op.i.rs], |
319 | state->regs.gpr[op.i.rt], flags, block); | |
d16005f8 PC |
320 | |
321 | switch (op.i.op) { | |
322 | case OP_LB: | |
323 | case OP_LBU: | |
324 | case OP_LH: | |
325 | case OP_LHU: | |
326 | case OP_LWL: | |
327 | case OP_LWR: | |
328 | case OP_LW: | |
329 | if (op.i.rt) | |
98fa08a5 | 330 | state->regs.gpr[op.i.rt] = ret; |
d16005f8 PC |
331 | default: /* fall-through */ |
332 | break; | |
333 | } | |
334 | } | |
335 | ||
22eee2ac | 336 | static void lightrec_rw_cb(struct lightrec_state *state) |
d16005f8 | 337 | { |
22eee2ac | 338 | lightrec_rw_helper(state, (union code)state->c_wrapper_arg, NULL, NULL); |
d16005f8 PC |
339 | } |
340 | ||
22eee2ac | 341 | static void lightrec_rw_generic_cb(struct lightrec_state *state) |
d16005f8 | 342 | { |
98fa08a5 PC |
343 | struct block *block; |
344 | struct opcode *op; | |
345 | bool was_tagged; | |
22eee2ac | 346 | u32 arg = state->c_wrapper_arg; |
98fa08a5 PC |
347 | u16 offset = (u16)arg; |
348 | ||
349 | block = lightrec_find_block_from_lut(state->block_cache, | |
350 | arg >> 16, state->next_pc); | |
351 | if (unlikely(!block)) { | |
352 | pr_err("rw_generic: No block found in LUT for PC 0x%x offset 0x%x\n", | |
353 | state->next_pc, offset); | |
354 | return; | |
355 | } | |
356 | ||
357 | op = &block->opcode_list[offset]; | |
22eee2ac | 358 | was_tagged = LIGHTREC_FLAGS_GET_IO_MODE(op->flags); |
d16005f8 | 359 | |
98fa08a5 | 360 | lightrec_rw_helper(state, op->c, &op->flags, block); |
d16005f8 PC |
361 | |
362 | if (!was_tagged) { | |
98fa08a5 PC |
363 | pr_debug("Opcode of block at PC 0x%08x has been tagged - flag " |
364 | "for recompilation\n", block->pc); | |
d16005f8 | 365 | |
a59e5536 | 366 | block->flags |= BLOCK_SHOULD_RECOMPILE; |
d16005f8 PC |
367 | } |
368 | } | |
369 | ||
98fa08a5 | 370 | static u32 clamp_s32(s32 val, s32 min, s32 max) |
d16005f8 | 371 | { |
98fa08a5 PC |
372 | return val < min ? min : val > max ? max : val; |
373 | } | |
d16005f8 | 374 | |
98fa08a5 PC |
375 | static u32 lightrec_mfc2(struct lightrec_state *state, u8 reg) |
376 | { | |
377 | s16 gteir1, gteir2, gteir3; | |
378 | ||
379 | switch (reg) { | |
380 | case 1: | |
381 | case 3: | |
382 | case 5: | |
383 | case 8: | |
384 | case 9: | |
385 | case 10: | |
386 | case 11: | |
387 | return (s32)(s16) state->regs.cp2d[reg]; | |
388 | case 7: | |
389 | case 16: | |
390 | case 17: | |
391 | case 18: | |
392 | case 19: | |
393 | return (u16) state->regs.cp2d[reg]; | |
394 | case 28: | |
395 | case 29: | |
396 | gteir1 = (s16) state->regs.cp2d[9]; | |
397 | gteir2 = (s16) state->regs.cp2d[10]; | |
398 | gteir3 = (s16) state->regs.cp2d[11]; | |
399 | ||
400 | return clamp_s32(gteir1 >> 7, 0, 0x1f) << 0 | | |
401 | clamp_s32(gteir2 >> 7, 0, 0x1f) << 5 | | |
402 | clamp_s32(gteir3 >> 7, 0, 0x1f) << 10; | |
403 | case 15: | |
404 | reg = 14; | |
405 | default: /* fall-through */ | |
406 | return state->regs.cp2d[reg]; | |
407 | } | |
408 | } | |
d16005f8 | 409 | |
98fa08a5 PC |
410 | u32 lightrec_mfc(struct lightrec_state *state, union code op) |
411 | { | |
412 | if (op.i.op == OP_CP0) | |
413 | return state->regs.cp0[op.r.rd]; | |
414 | else if (op.r.rs == OP_CP2_BASIC_MFC2) | |
415 | return lightrec_mfc2(state, op.r.rd); | |
d16005f8 | 416 | else |
98fa08a5 | 417 | return state->regs.cp2c[op.r.rd]; |
d16005f8 PC |
418 | } |
419 | ||
98fa08a5 | 420 | static void lightrec_mtc0(struct lightrec_state *state, u8 reg, u32 data) |
d16005f8 | 421 | { |
fd58fa32 | 422 | u32 status, oldstatus, cause; |
98fa08a5 PC |
423 | |
424 | switch (reg) { | |
425 | case 1: | |
426 | case 4: | |
427 | case 8: | |
428 | case 14: | |
429 | case 15: | |
430 | /* Those registers are read-only */ | |
431 | return; | |
fd58fa32 | 432 | default: |
98fa08a5 PC |
433 | break; |
434 | } | |
d16005f8 | 435 | |
98fa08a5 PC |
436 | if (reg == 12) { |
437 | status = state->regs.cp0[12]; | |
fd58fa32 | 438 | oldstatus = status; |
d16005f8 | 439 | |
98fa08a5 PC |
440 | if (status & ~data & BIT(16)) { |
441 | state->ops.enable_ram(state, true); | |
442 | lightrec_invalidate_all(state); | |
443 | } else if (~status & data & BIT(16)) { | |
444 | state->ops.enable_ram(state, false); | |
445 | } | |
446 | } | |
447 | ||
fd58fa32 PC |
448 | if (reg == 13) { |
449 | state->regs.cp0[13] &= ~0x300; | |
450 | state->regs.cp0[13] |= data & 0x300; | |
451 | } else { | |
452 | state->regs.cp0[reg] = data; | |
453 | } | |
98fa08a5 PC |
454 | |
455 | if (reg == 12 || reg == 13) { | |
456 | cause = state->regs.cp0[13]; | |
457 | status = state->regs.cp0[12]; | |
458 | ||
fd58fa32 | 459 | /* Handle software interrupts */ |
98fa08a5 PC |
460 | if (!!(status & cause & 0x300) & status) |
461 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT); | |
fd58fa32 PC |
462 | |
463 | /* Handle hardware interrupts */ | |
464 | if (reg == 12 && !(~status & 0x401) && (~oldstatus & 0x401)) | |
465 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT); | |
98fa08a5 PC |
466 | } |
467 | } | |
468 | ||
469 | static u32 count_leading_bits(s32 data) | |
470 | { | |
98fa08a5 PC |
471 | u32 cnt = 33; |
472 | ||
de742fa0 PC |
473 | #ifdef __has_builtin |
474 | #if __has_builtin(__builtin_clrsb) | |
475 | return 1 + __builtin_clrsb(data); | |
476 | #endif | |
477 | #endif | |
478 | ||
98fa08a5 PC |
479 | data = (data ^ (data >> 31)) << 1; |
480 | ||
481 | do { | |
482 | cnt -= 1; | |
483 | data >>= 1; | |
484 | } while (data); | |
485 | ||
486 | return cnt; | |
98fa08a5 PC |
487 | } |
488 | ||
489 | static void lightrec_mtc2(struct lightrec_state *state, u8 reg, u32 data) | |
490 | { | |
491 | switch (reg) { | |
492 | case 15: | |
493 | state->regs.cp2d[12] = state->regs.cp2d[13]; | |
494 | state->regs.cp2d[13] = state->regs.cp2d[14]; | |
495 | state->regs.cp2d[14] = data; | |
496 | break; | |
497 | case 28: | |
498 | state->regs.cp2d[9] = (data << 7) & 0xf80; | |
499 | state->regs.cp2d[10] = (data << 2) & 0xf80; | |
500 | state->regs.cp2d[11] = (data >> 3) & 0xf80; | |
501 | break; | |
502 | case 31: | |
503 | return; | |
504 | case 30: | |
505 | state->regs.cp2d[31] = count_leading_bits((s32) data); | |
506 | default: /* fall-through */ | |
507 | state->regs.cp2d[reg] = data; | |
508 | break; | |
509 | } | |
510 | } | |
d16005f8 | 511 | |
98fa08a5 PC |
512 | static void lightrec_ctc2(struct lightrec_state *state, u8 reg, u32 data) |
513 | { | |
514 | switch (reg) { | |
515 | case 4: | |
516 | case 12: | |
517 | case 20: | |
518 | case 26: | |
519 | case 27: | |
520 | case 29: | |
521 | case 30: | |
522 | data = (s32)(s16) data; | |
523 | break; | |
524 | case 31: | |
525 | data = (data & 0x7ffff000) | !!(data & 0x7f87e000) << 31; | |
526 | default: /* fall-through */ | |
527 | break; | |
528 | } | |
529 | ||
530 | state->regs.cp2c[reg] = data; | |
531 | } | |
532 | ||
533 | void lightrec_mtc(struct lightrec_state *state, union code op, u32 data) | |
534 | { | |
535 | if (op.i.op == OP_CP0) | |
536 | lightrec_mtc0(state, op.r.rd, data); | |
537 | else if (op.r.rs == OP_CP2_BASIC_CTC2) | |
538 | lightrec_ctc2(state, op.r.rd, data); | |
539 | else | |
540 | lightrec_mtc2(state, op.r.rd, data); | |
d16005f8 PC |
541 | } |
542 | ||
22eee2ac | 543 | static void lightrec_mtc_cb(struct lightrec_state *state) |
d16005f8 | 544 | { |
22eee2ac PC |
545 | union code op = (union code) state->c_wrapper_arg; |
546 | ||
98fa08a5 | 547 | lightrec_mtc(state, op, state->regs.gpr[op.r.rt]); |
d16005f8 PC |
548 | } |
549 | ||
98fa08a5 | 550 | void lightrec_rfe(struct lightrec_state *state) |
d16005f8 PC |
551 | { |
552 | u32 status; | |
553 | ||
554 | /* Read CP0 Status register (r12) */ | |
98fa08a5 | 555 | status = state->regs.cp0[12]; |
d16005f8 PC |
556 | |
557 | /* Switch the bits */ | |
558 | status = ((status & 0x3c) >> 2) | (status & ~0xf); | |
559 | ||
560 | /* Write it back */ | |
98fa08a5 | 561 | lightrec_mtc0(state, 12, status); |
d16005f8 PC |
562 | } |
563 | ||
98fa08a5 | 564 | void lightrec_cp(struct lightrec_state *state, union code op) |
d16005f8 | 565 | { |
98fa08a5 PC |
566 | if (op.i.op == OP_CP0) { |
567 | pr_err("Invalid CP opcode to coprocessor #0\n"); | |
568 | return; | |
569 | } | |
d16005f8 | 570 | |
98fa08a5 | 571 | (*state->ops.cop2_op)(state, op.opcode); |
d16005f8 PC |
572 | } |
573 | ||
22eee2ac PC |
574 | static void lightrec_cp_cb(struct lightrec_state *state) |
575 | { | |
576 | lightrec_cp(state, (union code) state->c_wrapper_arg); | |
577 | } | |
578 | ||
579 | static void lightrec_syscall_cb(struct lightrec_state *state) | |
d16005f8 PC |
580 | { |
581 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_SYSCALL); | |
582 | } | |
583 | ||
22eee2ac | 584 | static void lightrec_break_cb(struct lightrec_state *state) |
d16005f8 PC |
585 | { |
586 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_BREAK); | |
587 | } | |
588 | ||
589 | struct block * lightrec_get_block(struct lightrec_state *state, u32 pc) | |
590 | { | |
591 | struct block *block = lightrec_find_block(state->block_cache, pc); | |
592 | ||
98fa08a5 | 593 | if (block && lightrec_block_is_outdated(state, block)) { |
d16005f8 PC |
594 | pr_debug("Block at PC 0x%08x is outdated!\n", block->pc); |
595 | ||
596 | /* Make sure the recompiler isn't processing the block we'll | |
597 | * destroy */ | |
598 | if (ENABLE_THREADED_COMPILER) | |
599 | lightrec_recompiler_remove(state->rec, block); | |
600 | ||
601 | lightrec_unregister_block(state->block_cache, block); | |
a59e5536 | 602 | remove_from_code_lut(state->block_cache, block); |
98fa08a5 | 603 | lightrec_free_block(state, block); |
d16005f8 PC |
604 | block = NULL; |
605 | } | |
606 | ||
607 | if (!block) { | |
608 | block = lightrec_precompile_block(state, pc); | |
609 | if (!block) { | |
610 | pr_err("Unable to recompile block at PC 0x%x\n", pc); | |
611 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_SEGFAULT); | |
612 | return NULL; | |
613 | } | |
614 | ||
615 | lightrec_register_block(state->block_cache, block); | |
616 | } | |
617 | ||
618 | return block; | |
619 | } | |
620 | ||
621 | static void * get_next_block_func(struct lightrec_state *state, u32 pc) | |
622 | { | |
623 | struct block *block; | |
624 | bool should_recompile; | |
625 | void *func; | |
626 | ||
627 | for (;;) { | |
02487de7 | 628 | func = lut_read(state, pc); |
d16005f8 | 629 | if (func && func != state->get_next_block) |
98fa08a5 | 630 | break; |
d16005f8 PC |
631 | |
632 | block = lightrec_get_block(state, pc); | |
633 | ||
634 | if (unlikely(!block)) | |
98fa08a5 PC |
635 | break; |
636 | ||
637 | if (OPT_REPLACE_MEMSET && (block->flags & BLOCK_IS_MEMSET)) { | |
638 | func = state->memset_func; | |
639 | break; | |
640 | } | |
d16005f8 | 641 | |
a59e5536 | 642 | should_recompile = block->flags & BLOCK_SHOULD_RECOMPILE && |
643 | !(block->flags & BLOCK_IS_DEAD); | |
d16005f8 PC |
644 | |
645 | if (unlikely(should_recompile)) { | |
a59e5536 | 646 | pr_debug("Block at PC 0x%08x should recompile\n", pc); |
d16005f8 | 647 | |
d16005f8 | 648 | lightrec_unregister(MEM_FOR_CODE, block->code_size); |
a59e5536 | 649 | |
650 | if (ENABLE_THREADED_COMPILER) | |
651 | lightrec_recompiler_add(state->rec, block); | |
652 | else | |
98fa08a5 | 653 | lightrec_compile_block(state->cstate, block); |
d16005f8 PC |
654 | } |
655 | ||
656 | if (ENABLE_THREADED_COMPILER && likely(!should_recompile)) | |
98fa08a5 | 657 | func = lightrec_recompiler_run_first_pass(state, block, &pc); |
d16005f8 PC |
658 | else |
659 | func = block->function; | |
660 | ||
661 | if (likely(func)) | |
98fa08a5 | 662 | break; |
d16005f8 | 663 | |
98fa08a5 PC |
664 | if (unlikely(block->flags & BLOCK_NEVER_COMPILE)) { |
665 | pc = lightrec_emulate_block(state, block, pc); | |
666 | ||
667 | } else if (!ENABLE_THREADED_COMPILER) { | |
668 | /* Block wasn't compiled yet - run the interpreter */ | |
669 | if (block->flags & BLOCK_FULLY_TAGGED) | |
670 | pr_debug("Block fully tagged, skipping first pass\n"); | |
671 | else if (ENABLE_FIRST_PASS && likely(!should_recompile)) | |
672 | pc = lightrec_emulate_block(state, block, pc); | |
d16005f8 | 673 | |
d16005f8 | 674 | /* Then compile it using the profiled data */ |
98fa08a5 PC |
675 | lightrec_compile_block(state->cstate, block); |
676 | } else { | |
677 | lightrec_recompiler_add(state->rec, block); | |
d16005f8 PC |
678 | } |
679 | ||
680 | if (state->exit_flags != LIGHTREC_EXIT_NORMAL || | |
98fa08a5 PC |
681 | state->current_cycle >= state->target_cycle) |
682 | break; | |
d16005f8 | 683 | } |
d16005f8 | 684 | |
98fa08a5 PC |
685 | state->next_pc = pc; |
686 | return func; | |
d16005f8 PC |
687 | } |
688 | ||
689 | static s32 c_function_wrapper(struct lightrec_state *state, s32 cycles_delta, | |
22eee2ac | 690 | void (*f)(struct lightrec_state *)) |
d16005f8 PC |
691 | { |
692 | state->current_cycle = state->target_cycle - cycles_delta; | |
693 | ||
22eee2ac | 694 | (*f)(state); |
d16005f8 PC |
695 | |
696 | return state->target_cycle - state->current_cycle; | |
697 | } | |
698 | ||
02487de7 PC |
699 | static void * lightrec_emit_code(struct lightrec_state *state, |
700 | jit_state_t *_jit, unsigned int *size) | |
701 | { | |
702 | bool has_code_buffer = ENABLE_CODE_BUFFER && state->tlsf; | |
703 | jit_word_t code_size, new_code_size; | |
704 | void *code; | |
705 | ||
706 | jit_realize(); | |
707 | ||
708 | if (!ENABLE_DISASSEMBLER) | |
709 | jit_set_data(NULL, 0, JIT_DISABLE_DATA | JIT_DISABLE_NOTE); | |
710 | ||
711 | if (has_code_buffer) { | |
712 | jit_get_code(&code_size); | |
713 | code = tlsf_malloc(state->tlsf, (size_t) code_size); | |
714 | if (!code) | |
715 | return NULL; | |
716 | ||
717 | jit_set_code(code, code_size); | |
718 | } | |
719 | ||
720 | code = jit_emit(); | |
721 | ||
722 | jit_get_code(&new_code_size); | |
723 | lightrec_register(MEM_FOR_CODE, new_code_size); | |
724 | ||
725 | if (has_code_buffer) { | |
726 | tlsf_realloc(state->tlsf, code, new_code_size); | |
727 | ||
728 | pr_debug("Creating code block at address 0x%" PRIxPTR ", " | |
729 | "code size: %" PRIuPTR " new: %" PRIuPTR "\n", | |
730 | (uintptr_t) code, code_size, new_code_size); | |
731 | } | |
732 | ||
733 | *size = (unsigned int) new_code_size; | |
734 | ||
735 | return code; | |
736 | } | |
737 | ||
98fa08a5 | 738 | static struct block * generate_wrapper(struct lightrec_state *state) |
d16005f8 PC |
739 | { |
740 | struct block *block; | |
741 | jit_state_t *_jit; | |
742 | unsigned int i; | |
743 | int stack_ptr; | |
d16005f8 | 744 | jit_node_t *to_tramp, *to_fn_epilog; |
fd58fa32 | 745 | jit_node_t *addr[C_WRAPPERS_COUNT - 1]; |
d16005f8 PC |
746 | |
747 | block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block)); | |
748 | if (!block) | |
749 | goto err_no_mem; | |
750 | ||
751 | _jit = jit_new_state(); | |
752 | if (!_jit) | |
753 | goto err_free_block; | |
754 | ||
755 | jit_name("RW wrapper"); | |
756 | jit_note(__FILE__, __LINE__); | |
757 | ||
758 | /* Wrapper entry point */ | |
759 | jit_prolog(); | |
fd58fa32 PC |
760 | jit_tramp(256); |
761 | ||
762 | /* Add entry points; separate them by opcodes that increment | |
763 | * LIGHTREC_REG_STATE (since we cannot touch other registers). | |
764 | * The difference will then tell us which C function to call. */ | |
765 | for (i = C_WRAPPERS_COUNT - 1; i > 0; i--) { | |
766 | jit_addi(LIGHTREC_REG_STATE, LIGHTREC_REG_STATE, __WORDSIZE / 8); | |
767 | addr[i - 1] = jit_indirect(); | |
768 | } | |
769 | ||
770 | jit_epilog(); | |
771 | jit_prolog(); | |
d16005f8 PC |
772 | |
773 | stack_ptr = jit_allocai(sizeof(uintptr_t) * NUM_TEMPS); | |
774 | ||
fd58fa32 | 775 | /* Save all temporaries on stack */ |
d16005f8 PC |
776 | for (i = 0; i < NUM_TEMPS; i++) |
777 | jit_stxi(stack_ptr + i * sizeof(uintptr_t), JIT_FP, JIT_R(i)); | |
778 | ||
779 | /* Jump to the trampoline */ | |
780 | to_tramp = jit_jmpi(); | |
781 | ||
782 | /* The trampoline will jump back here */ | |
783 | to_fn_epilog = jit_label(); | |
784 | ||
fd58fa32 | 785 | /* Restore temporaries from stack */ |
d16005f8 PC |
786 | for (i = 0; i < NUM_TEMPS; i++) |
787 | jit_ldxi(JIT_R(i), JIT_FP, stack_ptr + i * sizeof(uintptr_t)); | |
788 | ||
789 | jit_ret(); | |
790 | jit_epilog(); | |
791 | ||
792 | /* Trampoline entry point. | |
793 | * The sole purpose of the trampoline is to cheese Lightning not to | |
794 | * save/restore the callee-saved register LIGHTREC_REG_CYCLE, since we | |
795 | * do want to return to the caller with this register modified. */ | |
796 | jit_prolog(); | |
797 | jit_tramp(256); | |
798 | jit_patch(to_tramp); | |
799 | ||
fd58fa32 PC |
800 | /* Retrieve the wrapper function */ |
801 | jit_ldxi(JIT_R0, LIGHTREC_REG_STATE, | |
802 | offsetof(struct lightrec_state, c_wrappers)); | |
803 | ||
804 | /* Restore LIGHTREC_REG_STATE to its correct value */ | |
805 | jit_movi(LIGHTREC_REG_STATE, (uintptr_t) state); | |
806 | ||
d16005f8 PC |
807 | jit_prepare(); |
808 | jit_pushargr(LIGHTREC_REG_STATE); | |
809 | jit_pushargr(LIGHTREC_REG_CYCLE); | |
d16005f8 | 810 | jit_pushargr(JIT_R0); |
98fa08a5 | 811 | jit_finishi(c_function_wrapper); |
d16005f8 | 812 | jit_retval_i(LIGHTREC_REG_CYCLE); |
d16005f8 PC |
813 | |
814 | jit_patch_at(jit_jmpi(), to_fn_epilog); | |
815 | jit_epilog(); | |
816 | ||
d16005f8 | 817 | block->_jit = _jit; |
d16005f8 PC |
818 | block->opcode_list = NULL; |
819 | block->flags = 0; | |
820 | block->nb_ops = 0; | |
821 | ||
02487de7 PC |
822 | block->function = lightrec_emit_code(state, _jit, |
823 | &block->code_size); | |
824 | if (!block->function) | |
825 | goto err_free_block; | |
826 | ||
fd58fa32 PC |
827 | state->wrappers_eps[C_WRAPPERS_COUNT - 1] = block->function; |
828 | ||
829 | for (i = 0; i < C_WRAPPERS_COUNT - 1; i++) | |
830 | state->wrappers_eps[i] = jit_address(addr[i]); | |
831 | ||
d16005f8 PC |
832 | if (ENABLE_DISASSEMBLER) { |
833 | pr_debug("Wrapper block:\n"); | |
834 | jit_disassemble(); | |
835 | } | |
836 | ||
837 | jit_clear_state(); | |
838 | return block; | |
839 | ||
840 | err_free_block: | |
841 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); | |
842 | err_no_mem: | |
843 | pr_err("Unable to compile wrapper: Out of memory\n"); | |
844 | return NULL; | |
845 | } | |
846 | ||
98fa08a5 PC |
847 | static u32 lightrec_memset(struct lightrec_state *state) |
848 | { | |
849 | u32 kunseg_pc = kunseg(state->regs.gpr[4]); | |
850 | void *host; | |
851 | const struct lightrec_mem_map *map = lightrec_get_map(state, &host, kunseg_pc); | |
852 | u32 length = state->regs.gpr[5] * 4; | |
853 | ||
854 | if (!map) { | |
855 | pr_err("Unable to find memory map for memset target address " | |
856 | "0x%x\n", kunseg_pc); | |
857 | return 0; | |
858 | } | |
859 | ||
860 | pr_debug("Calling host memset, PC 0x%x (host address 0x%" PRIxPTR ") for %u bytes\n", | |
861 | kunseg_pc, (uintptr_t)host, length); | |
862 | memset(host, 0, length); | |
863 | ||
864 | if (!state->invalidate_from_dma_only) | |
865 | lightrec_invalidate_map(state, map, kunseg_pc, length); | |
866 | ||
867 | /* Rough estimation of the number of cycles consumed */ | |
868 | return 8 + 5 * (length + 3 / 4); | |
869 | } | |
870 | ||
d16005f8 PC |
871 | static struct block * generate_dispatcher(struct lightrec_state *state) |
872 | { | |
873 | struct block *block; | |
874 | jit_state_t *_jit; | |
02487de7 | 875 | jit_node_t *to_end, *loop, *addr, *addr2, *addr3; |
d16005f8 | 876 | unsigned int i; |
02487de7 | 877 | u32 offset; |
d16005f8 PC |
878 | |
879 | block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block)); | |
880 | if (!block) | |
881 | goto err_no_mem; | |
882 | ||
883 | _jit = jit_new_state(); | |
884 | if (!_jit) | |
885 | goto err_free_block; | |
886 | ||
887 | jit_name("dispatcher"); | |
888 | jit_note(__FILE__, __LINE__); | |
889 | ||
890 | jit_prolog(); | |
891 | jit_frame(256); | |
892 | ||
893 | jit_getarg(JIT_R0, jit_arg()); | |
d16005f8 | 894 | jit_getarg_i(LIGHTREC_REG_CYCLE, jit_arg()); |
d16005f8 PC |
895 | |
896 | /* Force all callee-saved registers to be pushed on the stack */ | |
897 | for (i = 0; i < NUM_REGS; i++) | |
898 | jit_movr(JIT_V(i), JIT_V(i)); | |
899 | ||
900 | /* Pass lightrec_state structure to blocks, using the last callee-saved | |
901 | * register that Lightning provides */ | |
902 | jit_movi(LIGHTREC_REG_STATE, (intptr_t) state); | |
903 | ||
904 | loop = jit_label(); | |
905 | ||
906 | /* Call the block's code */ | |
907 | jit_jmpr(JIT_R0); | |
908 | ||
98fa08a5 PC |
909 | if (OPT_REPLACE_MEMSET) { |
910 | /* Blocks will jump here when they need to call | |
911 | * lightrec_memset() */ | |
912 | addr3 = jit_indirect(); | |
913 | ||
914 | jit_prepare(); | |
915 | jit_pushargr(LIGHTREC_REG_STATE); | |
916 | jit_finishi(lightrec_memset); | |
917 | ||
918 | jit_ldxi_ui(JIT_V0, LIGHTREC_REG_STATE, | |
919 | offsetof(struct lightrec_state, regs.gpr[31])); | |
920 | ||
921 | jit_retval(JIT_R0); | |
922 | jit_subr(LIGHTREC_REG_CYCLE, LIGHTREC_REG_CYCLE, JIT_R0); | |
923 | } | |
924 | ||
d16005f8 PC |
925 | /* The block will jump here, with the number of cycles remaining in |
926 | * LIGHTREC_REG_CYCLE */ | |
927 | addr2 = jit_indirect(); | |
928 | ||
98fa08a5 PC |
929 | /* Store back the next_pc to the lightrec_state structure */ |
930 | offset = offsetof(struct lightrec_state, next_pc); | |
931 | jit_stxi_i(offset, LIGHTREC_REG_STATE, JIT_V0); | |
932 | ||
d16005f8 PC |
933 | /* Jump to end if state->target_cycle < state->current_cycle */ |
934 | to_end = jit_blei(LIGHTREC_REG_CYCLE, 0); | |
935 | ||
936 | /* Convert next PC to KUNSEG and avoid mirrors */ | |
02487de7 PC |
937 | jit_andi(JIT_R0, JIT_V0, 0x10000000 | (RAM_SIZE - 1)); |
938 | jit_rshi_u(JIT_R1, JIT_R0, 28); | |
939 | jit_andi(JIT_R2, JIT_V0, BIOS_SIZE - 1); | |
940 | jit_addi(JIT_R2, JIT_R2, RAM_SIZE); | |
941 | jit_movnr(JIT_R0, JIT_R2, JIT_R1); | |
942 | ||
943 | /* If possible, use the code LUT */ | |
944 | if (!lut_is_32bit(state)) | |
98fa08a5 | 945 | jit_lshi(JIT_R0, JIT_R0, 1); |
d16005f8 | 946 | jit_addr(JIT_R0, JIT_R0, LIGHTREC_REG_STATE); |
02487de7 PC |
947 | |
948 | offset = offsetof(struct lightrec_state, code_lut); | |
949 | if (lut_is_32bit(state)) | |
950 | jit_ldxi_ui(JIT_R0, JIT_R0, offset); | |
951 | else | |
952 | jit_ldxi(JIT_R0, JIT_R0, offset); | |
d16005f8 PC |
953 | |
954 | /* If we get non-NULL, loop */ | |
955 | jit_patch_at(jit_bnei(JIT_R0, 0), loop); | |
956 | ||
957 | /* Slow path: call C function get_next_block_func() */ | |
d16005f8 | 958 | |
98fa08a5 | 959 | if (ENABLE_FIRST_PASS || OPT_DETECT_IMPOSSIBLE_BRANCHES) { |
d16005f8 PC |
960 | /* We may call the interpreter - update state->current_cycle */ |
961 | jit_ldxi_i(JIT_R2, LIGHTREC_REG_STATE, | |
962 | offsetof(struct lightrec_state, target_cycle)); | |
963 | jit_subr(JIT_R1, JIT_R2, LIGHTREC_REG_CYCLE); | |
964 | jit_stxi_i(offsetof(struct lightrec_state, current_cycle), | |
965 | LIGHTREC_REG_STATE, JIT_R1); | |
966 | } | |
967 | ||
968 | /* The code LUT will be set to this address when the block at the target | |
969 | * PC has been preprocessed but not yet compiled by the threaded | |
970 | * recompiler */ | |
971 | addr = jit_indirect(); | |
972 | ||
973 | /* Get the next block */ | |
974 | jit_prepare(); | |
975 | jit_pushargr(LIGHTREC_REG_STATE); | |
976 | jit_pushargr(JIT_V0); | |
977 | jit_finishi(&get_next_block_func); | |
978 | jit_retval(JIT_R0); | |
979 | ||
98fa08a5 | 980 | if (ENABLE_FIRST_PASS || OPT_DETECT_IMPOSSIBLE_BRANCHES) { |
d16005f8 PC |
981 | /* The interpreter may have updated state->current_cycle and |
982 | * state->target_cycle - recalc the delta */ | |
983 | jit_ldxi_i(JIT_R1, LIGHTREC_REG_STATE, | |
984 | offsetof(struct lightrec_state, current_cycle)); | |
985 | jit_ldxi_i(JIT_R2, LIGHTREC_REG_STATE, | |
986 | offsetof(struct lightrec_state, target_cycle)); | |
987 | jit_subr(LIGHTREC_REG_CYCLE, JIT_R2, JIT_R1); | |
988 | } | |
989 | ||
990 | /* If we get non-NULL, loop */ | |
991 | jit_patch_at(jit_bnei(JIT_R0, 0), loop); | |
992 | ||
d16005f8 PC |
993 | /* When exiting, the recompiled code will jump to that address */ |
994 | jit_note(__FILE__, __LINE__); | |
995 | jit_patch(to_end); | |
996 | ||
d16005f8 PC |
997 | jit_retr(LIGHTREC_REG_CYCLE); |
998 | jit_epilog(); | |
999 | ||
d16005f8 | 1000 | block->_jit = _jit; |
d16005f8 PC |
1001 | block->opcode_list = NULL; |
1002 | block->flags = 0; | |
1003 | block->nb_ops = 0; | |
1004 | ||
02487de7 PC |
1005 | block->function = lightrec_emit_code(state, _jit, |
1006 | &block->code_size); | |
1007 | if (!block->function) | |
1008 | goto err_free_block; | |
d16005f8 PC |
1009 | |
1010 | state->eob_wrapper_func = jit_address(addr2); | |
98fa08a5 PC |
1011 | if (OPT_REPLACE_MEMSET) |
1012 | state->memset_func = jit_address(addr3); | |
d16005f8 PC |
1013 | state->get_next_block = jit_address(addr); |
1014 | ||
1015 | if (ENABLE_DISASSEMBLER) { | |
1016 | pr_debug("Dispatcher block:\n"); | |
1017 | jit_disassemble(); | |
1018 | } | |
1019 | ||
1020 | /* We're done! */ | |
1021 | jit_clear_state(); | |
1022 | return block; | |
1023 | ||
1024 | err_free_block: | |
1025 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); | |
1026 | err_no_mem: | |
1027 | pr_err("Unable to compile dispatcher: Out of memory\n"); | |
1028 | return NULL; | |
1029 | } | |
1030 | ||
1031 | union code lightrec_read_opcode(struct lightrec_state *state, u32 pc) | |
1032 | { | |
fd58fa32 | 1033 | void *host = NULL; |
d16005f8 | 1034 | |
98fa08a5 | 1035 | lightrec_get_map(state, &host, kunseg(pc)); |
d16005f8 | 1036 | |
98fa08a5 | 1037 | const u32 *code = (u32 *)host; |
02487de7 | 1038 | return (union code) LE32TOH(*code); |
98fa08a5 | 1039 | } |
d16005f8 | 1040 | |
98fa08a5 PC |
1041 | unsigned int lightrec_cycles_of_opcode(union code code) |
1042 | { | |
1043 | return 2; | |
1044 | } | |
d16005f8 | 1045 | |
98fa08a5 PC |
1046 | void lightrec_free_opcode_list(struct lightrec_state *state, struct block *block) |
1047 | { | |
1048 | lightrec_free(state, MEM_FOR_IR, | |
1049 | sizeof(*block->opcode_list) * block->nb_ops, | |
1050 | block->opcode_list); | |
1051 | } | |
1052 | ||
1053 | static unsigned int lightrec_get_mips_block_len(const u32 *src) | |
1054 | { | |
1055 | unsigned int i; | |
1056 | union code c; | |
1057 | ||
1058 | for (i = 1; ; i++) { | |
1059 | c.opcode = LE32TOH(*src++); | |
1060 | ||
1061 | if (is_syscall(c)) | |
1062 | return i; | |
1063 | ||
1064 | if (is_unconditional_jump(c)) | |
1065 | return i + 1; | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | static struct opcode * lightrec_disassemble(struct lightrec_state *state, | |
1070 | const u32 *src, unsigned int *len) | |
1071 | { | |
1072 | struct opcode *list; | |
1073 | unsigned int i, length; | |
1074 | ||
1075 | length = lightrec_get_mips_block_len(src); | |
1076 | ||
1077 | list = lightrec_malloc(state, MEM_FOR_IR, sizeof(*list) * length); | |
1078 | if (!list) { | |
1079 | pr_err("Unable to allocate memory\n"); | |
1080 | return NULL; | |
1081 | } | |
1082 | ||
1083 | for (i = 0; i < length; i++) { | |
1084 | list[i].opcode = LE32TOH(src[i]); | |
1085 | list[i].flags = 0; | |
1086 | } | |
1087 | ||
1088 | *len = length * sizeof(u32); | |
1089 | ||
1090 | return list; | |
d16005f8 PC |
1091 | } |
1092 | ||
1093 | static struct block * lightrec_precompile_block(struct lightrec_state *state, | |
1094 | u32 pc) | |
1095 | { | |
1096 | struct opcode *list; | |
1097 | struct block *block; | |
98fa08a5 PC |
1098 | void *host; |
1099 | const struct lightrec_mem_map *map = lightrec_get_map(state, &host, kunseg(pc)); | |
1100 | const u32 *code = (u32 *) host; | |
d16005f8 | 1101 | unsigned int length; |
98fa08a5 | 1102 | bool fully_tagged; |
d16005f8 PC |
1103 | |
1104 | if (!map) | |
1105 | return NULL; | |
1106 | ||
d16005f8 PC |
1107 | block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block)); |
1108 | if (!block) { | |
1109 | pr_err("Unable to recompile block: Out of memory\n"); | |
1110 | return NULL; | |
1111 | } | |
1112 | ||
1113 | list = lightrec_disassemble(state, code, &length); | |
1114 | if (!list) { | |
1115 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); | |
1116 | return NULL; | |
1117 | } | |
1118 | ||
1119 | block->pc = pc; | |
d16005f8 PC |
1120 | block->_jit = NULL; |
1121 | block->function = NULL; | |
1122 | block->opcode_list = list; | |
98fa08a5 | 1123 | block->code = code; |
d16005f8 PC |
1124 | block->next = NULL; |
1125 | block->flags = 0; | |
1126 | block->code_size = 0; | |
1127 | #if ENABLE_THREADED_COMPILER | |
1128 | block->op_list_freed = (atomic_flag)ATOMIC_FLAG_INIT; | |
1129 | #endif | |
1130 | block->nb_ops = length / sizeof(u32); | |
1131 | ||
98fa08a5 | 1132 | lightrec_optimize(state, block); |
d16005f8 PC |
1133 | |
1134 | length = block->nb_ops * sizeof(u32); | |
1135 | ||
1136 | lightrec_register(MEM_FOR_MIPS_CODE, length); | |
1137 | ||
1138 | if (ENABLE_DISASSEMBLER) { | |
98fa08a5 PC |
1139 | pr_debug("Disassembled block at PC: 0x%08x\n", block->pc); |
1140 | lightrec_print_disassembly(block, code); | |
d16005f8 PC |
1141 | } |
1142 | ||
98fa08a5 | 1143 | pr_debug("Block size: %hu opcodes\n", block->nb_ops); |
d16005f8 PC |
1144 | |
1145 | /* If the first opcode is an 'impossible' branch, never compile the | |
1146 | * block */ | |
98fa08a5 | 1147 | if (should_emulate(block->opcode_list)) |
d16005f8 PC |
1148 | block->flags |= BLOCK_NEVER_COMPILE; |
1149 | ||
98fa08a5 PC |
1150 | fully_tagged = lightrec_block_is_fully_tagged(block); |
1151 | if (fully_tagged) | |
1152 | block->flags |= BLOCK_FULLY_TAGGED; | |
1153 | ||
1154 | if (OPT_REPLACE_MEMSET && (block->flags & BLOCK_IS_MEMSET)) | |
02487de7 | 1155 | lut_write(state, lut_offset(pc), state->memset_func); |
98fa08a5 | 1156 | |
d16005f8 PC |
1157 | block->hash = lightrec_calculate_block_hash(block); |
1158 | ||
a59e5536 | 1159 | pr_debug("Recompile count: %u\n", state->nb_precompile++); |
1160 | ||
d16005f8 PC |
1161 | return block; |
1162 | } | |
1163 | ||
98fa08a5 | 1164 | static bool lightrec_block_is_fully_tagged(const struct block *block) |
d16005f8 | 1165 | { |
98fa08a5 PC |
1166 | const struct opcode *op; |
1167 | unsigned int i; | |
1168 | ||
1169 | for (i = 0; i < block->nb_ops; i++) { | |
1170 | op = &block->opcode_list[i]; | |
d16005f8 | 1171 | |
d16005f8 PC |
1172 | /* Verify that all load/stores of the opcode list |
1173 | * Check all loads/stores of the opcode list and mark the | |
1174 | * block as fully compiled if they all have been tagged. */ | |
1175 | switch (op->c.i.op) { | |
1176 | case OP_LB: | |
1177 | case OP_LH: | |
1178 | case OP_LWL: | |
1179 | case OP_LW: | |
1180 | case OP_LBU: | |
1181 | case OP_LHU: | |
1182 | case OP_LWR: | |
1183 | case OP_SB: | |
1184 | case OP_SH: | |
1185 | case OP_SWL: | |
1186 | case OP_SW: | |
1187 | case OP_SWR: | |
1188 | case OP_LWC2: | |
1189 | case OP_SWC2: | |
22eee2ac | 1190 | if (!LIGHTREC_FLAGS_GET_IO_MODE(op->flags)) |
d16005f8 PC |
1191 | return false; |
1192 | default: /* fall-through */ | |
1193 | continue; | |
1194 | } | |
1195 | } | |
1196 | ||
1197 | return true; | |
1198 | } | |
1199 | ||
98fa08a5 | 1200 | static void lightrec_reap_block(struct lightrec_state *state, void *data) |
a59e5536 | 1201 | { |
1202 | struct block *block = data; | |
1203 | ||
1204 | pr_debug("Reap dead block at PC 0x%08x\n", block->pc); | |
98fa08a5 PC |
1205 | lightrec_unregister_block(state->block_cache, block); |
1206 | lightrec_free_block(state, block); | |
a59e5536 | 1207 | } |
1208 | ||
98fa08a5 | 1209 | static void lightrec_reap_jit(struct lightrec_state *state, void *data) |
a59e5536 | 1210 | { |
1211 | _jit_destroy_state(data); | |
1212 | } | |
1213 | ||
02487de7 PC |
1214 | static void lightrec_free_function(struct lightrec_state *state, void *fn) |
1215 | { | |
1216 | if (ENABLE_CODE_BUFFER && state->tlsf) { | |
1217 | pr_debug("Freeing code block at 0x%" PRIxPTR "\n", (uintptr_t) fn); | |
1218 | tlsf_free(state->tlsf, fn); | |
1219 | } | |
1220 | } | |
1221 | ||
1222 | static void lightrec_reap_function(struct lightrec_state *state, void *data) | |
1223 | { | |
1224 | lightrec_free_function(state, data); | |
1225 | } | |
1226 | ||
98fa08a5 PC |
1227 | int lightrec_compile_block(struct lightrec_cstate *cstate, |
1228 | struct block *block) | |
d16005f8 | 1229 | { |
98fa08a5 | 1230 | struct lightrec_state *state = cstate->state; |
a59e5536 | 1231 | struct lightrec_branch_target *target; |
d16005f8 | 1232 | bool op_list_freed = false, fully_tagged = false; |
a59e5536 | 1233 | struct block *block2; |
d16005f8 | 1234 | struct opcode *elm; |
a59e5536 | 1235 | jit_state_t *_jit, *oldjit; |
d16005f8 PC |
1236 | jit_node_t *start_of_block; |
1237 | bool skip_next = false; | |
02487de7 | 1238 | void *old_fn; |
d16005f8 | 1239 | unsigned int i, j; |
98fa08a5 | 1240 | u32 offset; |
d16005f8 PC |
1241 | |
1242 | fully_tagged = lightrec_block_is_fully_tagged(block); | |
1243 | if (fully_tagged) | |
1244 | block->flags |= BLOCK_FULLY_TAGGED; | |
1245 | ||
1246 | _jit = jit_new_state(); | |
1247 | if (!_jit) | |
1248 | return -ENOMEM; | |
1249 | ||
a59e5536 | 1250 | oldjit = block->_jit; |
02487de7 | 1251 | old_fn = block->function; |
d16005f8 PC |
1252 | block->_jit = _jit; |
1253 | ||
98fa08a5 PC |
1254 | lightrec_regcache_reset(cstate->reg_cache); |
1255 | cstate->cycles = 0; | |
1256 | cstate->nb_branches = 0; | |
1257 | cstate->nb_local_branches = 0; | |
1258 | cstate->nb_targets = 0; | |
d16005f8 PC |
1259 | |
1260 | jit_prolog(); | |
1261 | jit_tramp(256); | |
1262 | ||
1263 | start_of_block = jit_label(); | |
1264 | ||
98fa08a5 PC |
1265 | for (i = 0; i < block->nb_ops; i++) { |
1266 | elm = &block->opcode_list[i]; | |
d16005f8 PC |
1267 | |
1268 | if (skip_next) { | |
1269 | skip_next = false; | |
1270 | continue; | |
1271 | } | |
1272 | ||
98fa08a5 | 1273 | cstate->cycles += lightrec_cycles_of_opcode(elm->c); |
d16005f8 | 1274 | |
98fa08a5 | 1275 | if (should_emulate(elm)) { |
d16005f8 | 1276 | pr_debug("Branch at offset 0x%x will be emulated\n", |
98fa08a5 PC |
1277 | i << 2); |
1278 | ||
1279 | lightrec_emit_eob(cstate, block, i, false); | |
d16005f8 | 1280 | skip_next = !(elm->flags & LIGHTREC_NO_DS); |
98fa08a5 PC |
1281 | } else { |
1282 | lightrec_rec_opcode(cstate, block, i); | |
d16005f8 PC |
1283 | skip_next = has_delay_slot(elm->c) && |
1284 | !(elm->flags & LIGHTREC_NO_DS); | |
1285 | #if _WIN32 | |
1286 | /* FIXME: GNU Lightning on Windows seems to use our | |
1287 | * mapped registers as temporaries. Until the actual bug | |
1288 | * is found and fixed, unconditionally mark our | |
1289 | * registers as live here. */ | |
98fa08a5 | 1290 | lightrec_regcache_mark_live(cstate->reg_cache, _jit); |
d16005f8 PC |
1291 | #endif |
1292 | } | |
1293 | } | |
1294 | ||
98fa08a5 PC |
1295 | for (i = 0; i < cstate->nb_branches; i++) |
1296 | jit_patch(cstate->branches[i]); | |
d16005f8 | 1297 | |
98fa08a5 PC |
1298 | for (i = 0; i < cstate->nb_local_branches; i++) { |
1299 | struct lightrec_branch *branch = &cstate->local_branches[i]; | |
d16005f8 PC |
1300 | |
1301 | pr_debug("Patch local branch to offset 0x%x\n", | |
1302 | branch->target << 2); | |
1303 | ||
1304 | if (branch->target == 0) { | |
1305 | jit_patch_at(branch->branch, start_of_block); | |
1306 | continue; | |
1307 | } | |
1308 | ||
98fa08a5 PC |
1309 | for (j = 0; j < cstate->nb_targets; j++) { |
1310 | if (cstate->targets[j].offset == branch->target) { | |
d16005f8 | 1311 | jit_patch_at(branch->branch, |
98fa08a5 | 1312 | cstate->targets[j].label); |
d16005f8 PC |
1313 | break; |
1314 | } | |
1315 | } | |
1316 | ||
98fa08a5 | 1317 | if (j == cstate->nb_targets) |
d16005f8 PC |
1318 | pr_err("Unable to find branch target\n"); |
1319 | } | |
1320 | ||
1321 | jit_ldxi(JIT_R0, LIGHTREC_REG_STATE, | |
1322 | offsetof(struct lightrec_state, eob_wrapper_func)); | |
1323 | ||
1324 | jit_jmpr(JIT_R0); | |
1325 | ||
1326 | jit_ret(); | |
1327 | jit_epilog(); | |
1328 | ||
02487de7 PC |
1329 | block->function = lightrec_emit_code(state, _jit, |
1330 | &block->code_size); | |
1331 | if (!block->function) { | |
1332 | pr_err("Unable to compile block!\n"); | |
1333 | } | |
1334 | ||
a59e5536 | 1335 | block->flags &= ~BLOCK_SHOULD_RECOMPILE; |
d16005f8 PC |
1336 | |
1337 | /* Add compiled function to the LUT */ | |
02487de7 | 1338 | lut_write(state, lut_offset(block->pc), block->function); |
d16005f8 | 1339 | |
98fa08a5 PC |
1340 | if (ENABLE_THREADED_COMPILER) { |
1341 | /* Since we might try to reap the same block multiple times, | |
1342 | * we need the reaper to wait until everything has been | |
1343 | * submitted, so that the duplicate entries can be dropped. */ | |
1344 | lightrec_reaper_pause(state->reaper); | |
a59e5536 | 1345 | } |
1346 | ||
1347 | /* Detect old blocks that have been covered by the new one */ | |
98fa08a5 PC |
1348 | for (i = 0; i < cstate->nb_targets; i++) { |
1349 | target = &cstate->targets[i]; | |
a59e5536 | 1350 | |
1351 | if (!target->offset) | |
1352 | continue; | |
1353 | ||
1354 | offset = block->pc + target->offset * sizeof(u32); | |
1355 | block2 = lightrec_find_block(state->block_cache, offset); | |
1356 | if (block2) { | |
1357 | /* No need to check if block2 is compilable - it must | |
1358 | * be, otherwise block wouldn't be compilable either */ | |
1359 | ||
98fa08a5 PC |
1360 | /* Set the "block dead" flag to prevent the dynarec from |
1361 | * recompiling this block */ | |
a59e5536 | 1362 | block2->flags |= BLOCK_IS_DEAD; |
1363 | ||
98fa08a5 PC |
1364 | /* If block2 was pending for compilation, cancel it. |
1365 | * If it's being compiled right now, wait until it | |
1366 | * finishes. */ | |
1367 | if (ENABLE_THREADED_COMPILER) | |
1368 | lightrec_recompiler_remove(state->rec, block2); | |
fd58fa32 | 1369 | } |
98fa08a5 | 1370 | |
fd58fa32 PC |
1371 | /* We know from now on that block2 (if present) isn't going to |
1372 | * be compiled. We can override the LUT entry with our new | |
1373 | * block's entry point. */ | |
1374 | offset = lut_offset(block->pc) + target->offset; | |
02487de7 | 1375 | lut_write(state, offset, jit_address(target->label)); |
98fa08a5 | 1376 | |
fd58fa32 | 1377 | if (block2) { |
a59e5536 | 1378 | pr_debug("Reap block 0x%08x as it's covered by block " |
1379 | "0x%08x\n", block2->pc, block->pc); | |
1380 | ||
98fa08a5 | 1381 | /* Finally, reap the block. */ |
a59e5536 | 1382 | if (ENABLE_THREADED_COMPILER) { |
a59e5536 | 1383 | lightrec_reaper_add(state->reaper, |
1384 | lightrec_reap_block, | |
1385 | block2); | |
1386 | } else { | |
98fa08a5 PC |
1387 | lightrec_unregister_block(state->block_cache, block2); |
1388 | lightrec_free_block(state, block2); | |
a59e5536 | 1389 | } |
1390 | } | |
1391 | } | |
1392 | ||
b19ddc79 | 1393 | if (ENABLE_THREADED_COMPILER) |
98fa08a5 PC |
1394 | lightrec_reaper_continue(state->reaper); |
1395 | ||
d16005f8 | 1396 | if (ENABLE_DISASSEMBLER) { |
98fa08a5 | 1397 | pr_debug("Compiling block at PC: 0x%08x\n", block->pc); |
d16005f8 PC |
1398 | jit_disassemble(); |
1399 | } | |
1400 | ||
1401 | jit_clear_state(); | |
1402 | ||
1403 | #if ENABLE_THREADED_COMPILER | |
1404 | if (fully_tagged) | |
1405 | op_list_freed = atomic_flag_test_and_set(&block->op_list_freed); | |
1406 | #endif | |
1407 | if (fully_tagged && !op_list_freed) { | |
1408 | pr_debug("Block PC 0x%08x is fully tagged" | |
1409 | " - free opcode list\n", block->pc); | |
98fa08a5 | 1410 | lightrec_free_opcode_list(state, block); |
d16005f8 PC |
1411 | block->opcode_list = NULL; |
1412 | } | |
1413 | ||
a59e5536 | 1414 | if (oldjit) { |
1415 | pr_debug("Block 0x%08x recompiled, reaping old jit context.\n", | |
1416 | block->pc); | |
1417 | ||
02487de7 | 1418 | if (ENABLE_THREADED_COMPILER) { |
a59e5536 | 1419 | lightrec_reaper_add(state->reaper, |
1420 | lightrec_reap_jit, oldjit); | |
02487de7 PC |
1421 | lightrec_reaper_add(state->reaper, |
1422 | lightrec_reap_function, old_fn); | |
1423 | } else { | |
a59e5536 | 1424 | _jit_destroy_state(oldjit); |
02487de7 PC |
1425 | lightrec_free_function(state, old_fn); |
1426 | } | |
a59e5536 | 1427 | } |
1428 | ||
d16005f8 PC |
1429 | return 0; |
1430 | } | |
1431 | ||
98fa08a5 PC |
1432 | static void lightrec_print_info(struct lightrec_state *state) |
1433 | { | |
1434 | if ((state->current_cycle & ~0xfffffff) != state->old_cycle_counter) { | |
1435 | pr_info("Lightrec RAM usage: IR %u KiB, CODE %u KiB, " | |
1436 | "MIPS %u KiB, TOTAL %u KiB, avg. IPI %f\n", | |
1437 | lightrec_get_mem_usage(MEM_FOR_IR) / 1024, | |
1438 | lightrec_get_mem_usage(MEM_FOR_CODE) / 1024, | |
1439 | lightrec_get_mem_usage(MEM_FOR_MIPS_CODE) / 1024, | |
1440 | lightrec_get_total_mem_usage() / 1024, | |
1441 | lightrec_get_average_ipi()); | |
1442 | state->old_cycle_counter = state->current_cycle & ~0xfffffff; | |
1443 | } | |
1444 | } | |
1445 | ||
d16005f8 PC |
1446 | u32 lightrec_execute(struct lightrec_state *state, u32 pc, u32 target_cycle) |
1447 | { | |
1448 | s32 (*func)(void *, s32) = (void *)state->dispatcher->function; | |
1449 | void *block_trace; | |
1450 | s32 cycles_delta; | |
1451 | ||
1452 | state->exit_flags = LIGHTREC_EXIT_NORMAL; | |
1453 | ||
1454 | /* Handle the cycle counter overflowing */ | |
1455 | if (unlikely(target_cycle < state->current_cycle)) | |
1456 | target_cycle = UINT_MAX; | |
1457 | ||
1458 | state->target_cycle = target_cycle; | |
98fa08a5 | 1459 | state->next_pc = pc; |
d16005f8 PC |
1460 | |
1461 | block_trace = get_next_block_func(state, pc); | |
1462 | if (block_trace) { | |
1463 | cycles_delta = state->target_cycle - state->current_cycle; | |
1464 | ||
1465 | cycles_delta = (*func)(block_trace, cycles_delta); | |
1466 | ||
1467 | state->current_cycle = state->target_cycle - cycles_delta; | |
1468 | } | |
1469 | ||
a59e5536 | 1470 | if (ENABLE_THREADED_COMPILER) |
1471 | lightrec_reaper_reap(state->reaper); | |
1472 | ||
98fa08a5 PC |
1473 | if (LOG_LEVEL >= INFO_L) |
1474 | lightrec_print_info(state); | |
1475 | ||
d16005f8 PC |
1476 | return state->next_pc; |
1477 | } | |
1478 | ||
1479 | u32 lightrec_execute_one(struct lightrec_state *state, u32 pc) | |
1480 | { | |
1481 | return lightrec_execute(state, pc, state->current_cycle); | |
1482 | } | |
1483 | ||
1484 | u32 lightrec_run_interpreter(struct lightrec_state *state, u32 pc) | |
1485 | { | |
1486 | struct block *block = lightrec_get_block(state, pc); | |
1487 | if (!block) | |
1488 | return 0; | |
1489 | ||
1490 | state->exit_flags = LIGHTREC_EXIT_NORMAL; | |
1491 | ||
98fa08a5 PC |
1492 | pc = lightrec_emulate_block(state, block, pc); |
1493 | ||
1494 | if (LOG_LEVEL >= INFO_L) | |
1495 | lightrec_print_info(state); | |
1496 | ||
1497 | return pc; | |
d16005f8 PC |
1498 | } |
1499 | ||
98fa08a5 | 1500 | void lightrec_free_block(struct lightrec_state *state, struct block *block) |
d16005f8 PC |
1501 | { |
1502 | lightrec_unregister(MEM_FOR_MIPS_CODE, block->nb_ops * sizeof(u32)); | |
1503 | if (block->opcode_list) | |
98fa08a5 | 1504 | lightrec_free_opcode_list(state, block); |
d16005f8 PC |
1505 | if (block->_jit) |
1506 | _jit_destroy_state(block->_jit); | |
02487de7 | 1507 | lightrec_free_function(state, block->function); |
d16005f8 | 1508 | lightrec_unregister(MEM_FOR_CODE, block->code_size); |
98fa08a5 PC |
1509 | lightrec_free(state, MEM_FOR_IR, sizeof(*block), block); |
1510 | } | |
1511 | ||
1512 | struct lightrec_cstate * lightrec_create_cstate(struct lightrec_state *state) | |
1513 | { | |
1514 | struct lightrec_cstate *cstate; | |
1515 | ||
1516 | cstate = lightrec_malloc(state, MEM_FOR_LIGHTREC, sizeof(*cstate)); | |
1517 | if (!cstate) | |
1518 | return NULL; | |
1519 | ||
1520 | cstate->reg_cache = lightrec_regcache_init(state); | |
1521 | if (!cstate->reg_cache) { | |
1522 | lightrec_free(state, MEM_FOR_LIGHTREC, sizeof(*cstate), cstate); | |
1523 | return NULL; | |
1524 | } | |
1525 | ||
1526 | cstate->state = state; | |
1527 | ||
1528 | return cstate; | |
1529 | } | |
1530 | ||
1531 | void lightrec_free_cstate(struct lightrec_cstate *cstate) | |
1532 | { | |
1533 | lightrec_free_regcache(cstate->reg_cache); | |
1534 | lightrec_free(cstate->state, MEM_FOR_LIGHTREC, sizeof(*cstate), cstate); | |
d16005f8 PC |
1535 | } |
1536 | ||
1537 | struct lightrec_state * lightrec_init(char *argv0, | |
1538 | const struct lightrec_mem_map *map, | |
1539 | size_t nb, | |
1540 | const struct lightrec_ops *ops) | |
1541 | { | |
02487de7 | 1542 | const struct lightrec_mem_map *codebuf_map; |
d16005f8 | 1543 | struct lightrec_state *state; |
02487de7 PC |
1544 | uintptr_t addr; |
1545 | void *tlsf = NULL; | |
1546 | bool with_32bit_lut = false; | |
1547 | size_t lut_size; | |
d16005f8 PC |
1548 | |
1549 | /* Sanity-check ops */ | |
98fa08a5 | 1550 | if (!ops || !ops->cop2_op || !ops->enable_ram) { |
d16005f8 PC |
1551 | pr_err("Missing callbacks in lightrec_ops structure\n"); |
1552 | return NULL; | |
1553 | } | |
1554 | ||
02487de7 PC |
1555 | if (ENABLE_CODE_BUFFER && nb > PSX_MAP_CODE_BUFFER) { |
1556 | codebuf_map = &map[PSX_MAP_CODE_BUFFER]; | |
1557 | ||
1558 | tlsf = tlsf_create_with_pool(codebuf_map->address, | |
1559 | codebuf_map->length); | |
1560 | if (!tlsf) { | |
1561 | pr_err("Unable to initialize code buffer\n"); | |
1562 | return NULL; | |
1563 | } | |
1564 | ||
1565 | if (__WORDSIZE == 64) { | |
1566 | addr = (uintptr_t) codebuf_map->address + codebuf_map->length - 1; | |
1567 | with_32bit_lut = addr == (u32) addr; | |
1568 | } | |
1569 | } | |
1570 | ||
1571 | if (with_32bit_lut) | |
1572 | lut_size = CODE_LUT_SIZE * 4; | |
1573 | else | |
1574 | lut_size = CODE_LUT_SIZE * sizeof(void *); | |
1575 | ||
d16005f8 PC |
1576 | init_jit(argv0); |
1577 | ||
02487de7 | 1578 | state = calloc(1, sizeof(*state) + lut_size); |
d16005f8 PC |
1579 | if (!state) |
1580 | goto err_finish_jit; | |
1581 | ||
02487de7 PC |
1582 | lightrec_register(MEM_FOR_LIGHTREC, sizeof(*state) + lut_size); |
1583 | ||
1584 | state->tlsf = tlsf; | |
1585 | state->with_32bit_lut = with_32bit_lut; | |
d16005f8 PC |
1586 | |
1587 | #if ENABLE_TINYMM | |
1588 | state->tinymm = tinymm_init(malloc, free, 4096); | |
1589 | if (!state->tinymm) | |
1590 | goto err_free_state; | |
1591 | #endif | |
1592 | ||
1593 | state->block_cache = lightrec_blockcache_init(state); | |
1594 | if (!state->block_cache) | |
1595 | goto err_free_tinymm; | |
1596 | ||
d16005f8 PC |
1597 | if (ENABLE_THREADED_COMPILER) { |
1598 | state->rec = lightrec_recompiler_init(state); | |
1599 | if (!state->rec) | |
98fa08a5 | 1600 | goto err_free_block_cache; |
a59e5536 | 1601 | |
1602 | state->reaper = lightrec_reaper_init(state); | |
1603 | if (!state->reaper) | |
1604 | goto err_free_recompiler; | |
98fa08a5 PC |
1605 | } else { |
1606 | state->cstate = lightrec_create_cstate(state); | |
1607 | if (!state->cstate) | |
1608 | goto err_free_block_cache; | |
d16005f8 PC |
1609 | } |
1610 | ||
1611 | state->nb_maps = nb; | |
1612 | state->maps = map; | |
1613 | ||
1614 | memcpy(&state->ops, ops, sizeof(*ops)); | |
1615 | ||
1616 | state->dispatcher = generate_dispatcher(state); | |
1617 | if (!state->dispatcher) | |
a59e5536 | 1618 | goto err_free_reaper; |
d16005f8 | 1619 | |
98fa08a5 PC |
1620 | state->c_wrapper_block = generate_wrapper(state); |
1621 | if (!state->c_wrapper_block) | |
d16005f8 PC |
1622 | goto err_free_dispatcher; |
1623 | ||
98fa08a5 PC |
1624 | state->c_wrappers[C_WRAPPER_RW] = lightrec_rw_cb; |
1625 | state->c_wrappers[C_WRAPPER_RW_GENERIC] = lightrec_rw_generic_cb; | |
98fa08a5 | 1626 | state->c_wrappers[C_WRAPPER_MTC] = lightrec_mtc_cb; |
22eee2ac | 1627 | state->c_wrappers[C_WRAPPER_CP] = lightrec_cp_cb; |
98fa08a5 PC |
1628 | state->c_wrappers[C_WRAPPER_SYSCALL] = lightrec_syscall_cb; |
1629 | state->c_wrappers[C_WRAPPER_BREAK] = lightrec_break_cb; | |
d16005f8 PC |
1630 | |
1631 | map = &state->maps[PSX_MAP_BIOS]; | |
1632 | state->offset_bios = (uintptr_t)map->address - map->pc; | |
1633 | ||
1634 | map = &state->maps[PSX_MAP_SCRATCH_PAD]; | |
1635 | state->offset_scratch = (uintptr_t)map->address - map->pc; | |
1636 | ||
1637 | map = &state->maps[PSX_MAP_KERNEL_USER_RAM]; | |
1638 | state->offset_ram = (uintptr_t)map->address - map->pc; | |
1639 | ||
1640 | if (state->maps[PSX_MAP_MIRROR1].address == map->address + 0x200000 && | |
1641 | state->maps[PSX_MAP_MIRROR2].address == map->address + 0x400000 && | |
1642 | state->maps[PSX_MAP_MIRROR3].address == map->address + 0x600000) | |
1643 | state->mirrors_mapped = true; | |
1644 | ||
98fa08a5 PC |
1645 | if (state->offset_bios == 0 && |
1646 | state->offset_scratch == 0 && | |
1647 | state->offset_ram == 0 && | |
1648 | state->mirrors_mapped) { | |
1649 | pr_info("Memory map is perfect. Emitted code will be best.\n"); | |
1650 | } else { | |
1651 | pr_info("Memory map is sub-par. Emitted code will be slow.\n"); | |
1652 | } | |
1653 | ||
02487de7 PC |
1654 | if (state->with_32bit_lut) |
1655 | pr_info("Using 32-bit LUT\n"); | |
1656 | ||
d16005f8 PC |
1657 | return state; |
1658 | ||
d16005f8 | 1659 | err_free_dispatcher: |
98fa08a5 | 1660 | lightrec_free_block(state, state->dispatcher); |
a59e5536 | 1661 | err_free_reaper: |
1662 | if (ENABLE_THREADED_COMPILER) | |
1663 | lightrec_reaper_destroy(state->reaper); | |
d16005f8 PC |
1664 | err_free_recompiler: |
1665 | if (ENABLE_THREADED_COMPILER) | |
1666 | lightrec_free_recompiler(state->rec); | |
98fa08a5 PC |
1667 | else |
1668 | lightrec_free_cstate(state->cstate); | |
d16005f8 PC |
1669 | err_free_block_cache: |
1670 | lightrec_free_block_cache(state->block_cache); | |
1671 | err_free_tinymm: | |
1672 | #if ENABLE_TINYMM | |
1673 | tinymm_shutdown(state->tinymm); | |
1674 | err_free_state: | |
1675 | #endif | |
1676 | lightrec_unregister(MEM_FOR_LIGHTREC, sizeof(*state) + | |
02487de7 | 1677 | lut_elm_size(state) * CODE_LUT_SIZE); |
d16005f8 PC |
1678 | free(state); |
1679 | err_finish_jit: | |
1680 | finish_jit(); | |
02487de7 PC |
1681 | if (ENABLE_CODE_BUFFER && tlsf) |
1682 | tlsf_destroy(tlsf); | |
d16005f8 PC |
1683 | return NULL; |
1684 | } | |
1685 | ||
1686 | void lightrec_destroy(struct lightrec_state *state) | |
1687 | { | |
98fa08a5 PC |
1688 | /* Force a print info on destroy*/ |
1689 | state->current_cycle = ~state->current_cycle; | |
1690 | lightrec_print_info(state); | |
1691 | ||
a59e5536 | 1692 | if (ENABLE_THREADED_COMPILER) { |
d16005f8 | 1693 | lightrec_free_recompiler(state->rec); |
a59e5536 | 1694 | lightrec_reaper_destroy(state->reaper); |
98fa08a5 PC |
1695 | } else { |
1696 | lightrec_free_cstate(state->cstate); | |
a59e5536 | 1697 | } |
d16005f8 | 1698 | |
d16005f8 | 1699 | lightrec_free_block_cache(state->block_cache); |
98fa08a5 PC |
1700 | lightrec_free_block(state, state->dispatcher); |
1701 | lightrec_free_block(state, state->c_wrapper_block); | |
d16005f8 | 1702 | finish_jit(); |
02487de7 PC |
1703 | if (ENABLE_CODE_BUFFER && state->tlsf) |
1704 | tlsf_destroy(state->tlsf); | |
d16005f8 PC |
1705 | |
1706 | #if ENABLE_TINYMM | |
1707 | tinymm_shutdown(state->tinymm); | |
1708 | #endif | |
1709 | lightrec_unregister(MEM_FOR_LIGHTREC, sizeof(*state) + | |
02487de7 | 1710 | lut_elm_size(state) * CODE_LUT_SIZE); |
d16005f8 PC |
1711 | free(state); |
1712 | } | |
1713 | ||
1714 | void lightrec_invalidate(struct lightrec_state *state, u32 addr, u32 len) | |
1715 | { | |
1716 | u32 kaddr = kunseg(addr & ~0x3); | |
98fa08a5 | 1717 | const struct lightrec_mem_map *map = lightrec_get_map(state, NULL, kaddr); |
d16005f8 PC |
1718 | |
1719 | if (map) { | |
d16005f8 PC |
1720 | if (map != &state->maps[PSX_MAP_KERNEL_USER_RAM]) |
1721 | return; | |
1722 | ||
1723 | /* Handle mirrors */ | |
1724 | kaddr &= (state->maps[PSX_MAP_KERNEL_USER_RAM].length - 1); | |
1725 | ||
98fa08a5 | 1726 | lightrec_invalidate_map(state, map, kaddr, len); |
d16005f8 PC |
1727 | } |
1728 | } | |
1729 | ||
1730 | void lightrec_invalidate_all(struct lightrec_state *state) | |
1731 | { | |
02487de7 | 1732 | memset(state->code_lut, 0, lut_elm_size(state) * CODE_LUT_SIZE); |
d16005f8 PC |
1733 | } |
1734 | ||
1735 | void lightrec_set_invalidate_mode(struct lightrec_state *state, bool dma_only) | |
1736 | { | |
1737 | if (state->invalidate_from_dma_only != dma_only) | |
1738 | lightrec_invalidate_all(state); | |
1739 | ||
1740 | state->invalidate_from_dma_only = dma_only; | |
1741 | } | |
1742 | ||
1743 | void lightrec_set_exit_flags(struct lightrec_state *state, u32 flags) | |
1744 | { | |
1745 | if (flags != LIGHTREC_EXIT_NORMAL) { | |
1746 | state->exit_flags |= flags; | |
1747 | state->target_cycle = state->current_cycle; | |
1748 | } | |
1749 | } | |
1750 | ||
1751 | u32 lightrec_exit_flags(struct lightrec_state *state) | |
1752 | { | |
1753 | return state->exit_flags; | |
1754 | } | |
1755 | ||
d16005f8 PC |
1756 | u32 lightrec_current_cycle_count(const struct lightrec_state *state) |
1757 | { | |
1758 | return state->current_cycle; | |
1759 | } | |
1760 | ||
1761 | void lightrec_reset_cycle_count(struct lightrec_state *state, u32 cycles) | |
1762 | { | |
1763 | state->current_cycle = cycles; | |
1764 | ||
1765 | if (state->target_cycle < cycles) | |
1766 | state->target_cycle = cycles; | |
1767 | } | |
1768 | ||
1769 | void lightrec_set_target_cycle_count(struct lightrec_state *state, u32 cycles) | |
1770 | { | |
1771 | if (state->exit_flags == LIGHTREC_EXIT_NORMAL) { | |
1772 | if (cycles < state->current_cycle) | |
1773 | cycles = state->current_cycle; | |
1774 | ||
1775 | state->target_cycle = cycles; | |
1776 | } | |
1777 | } | |
98fa08a5 PC |
1778 | |
1779 | struct lightrec_registers * lightrec_get_registers(struct lightrec_state *state) | |
1780 | { | |
1781 | return &state->regs; | |
1782 | } |