1 // SPDX-License-Identifier: LGPL-2.1-or-later
3 * Copyright (C) 2014-2021 Paul Cercueil <paul@crapouillou.net>
6 #include "blockcache.h"
8 #include "disassembler.h"
10 #include "interpreter.h"
11 #include "lightrec-config.h"
12 #include "lightning-wrapper.h"
14 #include "memmanager.h"
16 #include "recompiler.h"
18 #include "optimizer.h"
19 #include "tlsf/tlsf.h"
24 #if ENABLE_THREADED_COMPILER
25 #include <stdatomic.h>
31 #define GENMASK(h, l) \
32 (((uintptr_t)-1 << (l)) & ((uintptr_t)-1 >> (__WORDSIZE - 1 - (h))))
34 static struct block * lightrec_precompile_block(struct lightrec_state *state,
36 static bool lightrec_block_is_fully_tagged(const struct block *block);
38 static void lightrec_mtc2(struct lightrec_state *state, u8 reg, u32 data);
39 static u32 lightrec_mfc2(struct lightrec_state *state, u8 reg);
41 static void lightrec_default_sb(struct lightrec_state *state, u32 opcode,
42 void *host, u32 addr, u8 data)
46 if (!state->invalidate_from_dma_only)
47 lightrec_invalidate(state, addr, 1);
50 static void lightrec_default_sh(struct lightrec_state *state, u32 opcode,
51 void *host, u32 addr, u16 data)
53 *(u16 *)host = HTOLE16(data);
55 if (!state->invalidate_from_dma_only)
56 lightrec_invalidate(state, addr, 2);
59 static void lightrec_default_sw(struct lightrec_state *state, u32 opcode,
60 void *host, u32 addr, u32 data)
62 *(u32 *)host = HTOLE32(data);
64 if (!state->invalidate_from_dma_only)
65 lightrec_invalidate(state, addr, 4);
68 static u8 lightrec_default_lb(struct lightrec_state *state,
69 u32 opcode, void *host, u32 addr)
74 static u16 lightrec_default_lh(struct lightrec_state *state,
75 u32 opcode, void *host, u32 addr)
77 return LE16TOH(*(u16 *)host);
80 static u32 lightrec_default_lw(struct lightrec_state *state,
81 u32 opcode, void *host, u32 addr)
83 return LE32TOH(*(u32 *)host);
86 static const struct lightrec_mem_map_ops lightrec_default_ops = {
87 .sb = lightrec_default_sb,
88 .sh = lightrec_default_sh,
89 .sw = lightrec_default_sw,
90 .lb = lightrec_default_lb,
91 .lh = lightrec_default_lh,
92 .lw = lightrec_default_lw,
95 static void __segfault_cb(struct lightrec_state *state, u32 addr,
96 const struct block *block)
98 lightrec_set_exit_flags(state, LIGHTREC_EXIT_SEGFAULT);
99 pr_err("Segmentation fault in recompiled code: invalid "
100 "load/store at address 0x%08x\n", addr);
102 pr_err("Was executing block PC 0x%08x\n", block->pc);
105 static void lightrec_swl(struct lightrec_state *state,
106 const struct lightrec_mem_map_ops *ops,
107 u32 opcode, void *host, u32 addr, u32 data)
109 unsigned int shift = addr & 0x3;
110 unsigned int mask = GENMASK(31, (shift + 1) * 8);
113 /* Align to 32 bits */
115 host = (void *)((uintptr_t)host & ~3);
117 old_data = ops->lw(state, opcode, host, addr);
119 data = (data >> ((3 - shift) * 8)) | (old_data & mask);
121 ops->sw(state, opcode, host, addr, data);
124 static void lightrec_swr(struct lightrec_state *state,
125 const struct lightrec_mem_map_ops *ops,
126 u32 opcode, void *host, u32 addr, u32 data)
128 unsigned int shift = addr & 0x3;
129 unsigned int mask = (1 << (shift * 8)) - 1;
132 /* Align to 32 bits */
134 host = (void *)((uintptr_t)host & ~3);
136 old_data = ops->lw(state, opcode, host, addr);
138 data = (data << (shift * 8)) | (old_data & mask);
140 ops->sw(state, opcode, host, addr, data);
143 static void lightrec_swc2(struct lightrec_state *state, union code op,
144 const struct lightrec_mem_map_ops *ops,
145 void *host, u32 addr)
147 u32 data = lightrec_mfc2(state, op.i.rt);
149 ops->sw(state, op.opcode, host, addr, data);
152 static u32 lightrec_lwl(struct lightrec_state *state,
153 const struct lightrec_mem_map_ops *ops,
154 u32 opcode, void *host, u32 addr, u32 data)
156 unsigned int shift = addr & 0x3;
157 unsigned int mask = (1 << (24 - shift * 8)) - 1;
160 /* Align to 32 bits */
162 host = (void *)((uintptr_t)host & ~3);
164 old_data = ops->lw(state, opcode, host, addr);
166 return (data & mask) | (old_data << (24 - shift * 8));
169 static u32 lightrec_lwr(struct lightrec_state *state,
170 const struct lightrec_mem_map_ops *ops,
171 u32 opcode, void *host, u32 addr, u32 data)
173 unsigned int shift = addr & 0x3;
174 unsigned int mask = GENMASK(31, 32 - shift * 8);
177 /* Align to 32 bits */
179 host = (void *)((uintptr_t)host & ~3);
181 old_data = ops->lw(state, opcode, host, addr);
183 return (data & mask) | (old_data >> (shift * 8));
186 static void lightrec_lwc2(struct lightrec_state *state, union code op,
187 const struct lightrec_mem_map_ops *ops,
188 void *host, u32 addr)
190 u32 data = ops->lw(state, op.opcode, host, addr);
192 lightrec_mtc2(state, op.i.rt, data);
195 static void lightrec_invalidate_map(struct lightrec_state *state,
196 const struct lightrec_mem_map *map, u32 addr, u32 len)
198 if (map == &state->maps[PSX_MAP_KERNEL_USER_RAM]) {
199 memset(lut_address(state, lut_offset(addr)), 0,
200 ((len + 3) / 4) * lut_elm_size(state));
205 lightrec_get_map_idx(struct lightrec_state *state, u32 kaddr)
207 const struct lightrec_mem_map *map;
210 for (i = 0; i < state->nb_maps; i++) {
211 map = &state->maps[i];
213 if (kaddr >= map->pc && kaddr < map->pc + map->length)
214 return (enum psx_map) i;
217 return PSX_MAP_UNKNOWN;
220 const struct lightrec_mem_map *
221 lightrec_get_map(struct lightrec_state *state, void **host, u32 kaddr)
223 const struct lightrec_mem_map *map;
227 idx = lightrec_get_map_idx(state, kaddr);
228 if (idx == PSX_MAP_UNKNOWN)
231 map = &state->maps[idx];
232 addr = kaddr - map->pc;
234 while (map->mirror_of)
235 map = map->mirror_of;
238 *host = map->address + addr;
243 u32 lightrec_rw(struct lightrec_state *state, union code op,
244 u32 addr, u32 data, u32 *flags, struct block *block)
246 const struct lightrec_mem_map *map;
247 const struct lightrec_mem_map_ops *ops;
248 u32 opcode = op.opcode;
251 addr += (s16) op.i.imm;
253 map = lightrec_get_map(state, &host, kunseg(addr));
255 __segfault_cb(state, addr, block);
259 if (unlikely(map->ops)) {
260 if (flags && !LIGHTREC_FLAGS_GET_IO_MODE(*flags))
261 *flags |= LIGHTREC_IO_MODE(LIGHTREC_IO_HW);
265 if (flags && !LIGHTREC_FLAGS_GET_IO_MODE(*flags))
266 *flags |= LIGHTREC_IO_MODE(LIGHTREC_IO_DIRECT);
268 ops = &lightrec_default_ops;
273 ops->sb(state, opcode, host, addr, (u8) data);
276 ops->sh(state, opcode, host, addr, (u16) data);
279 lightrec_swl(state, ops, opcode, host, addr, data);
282 lightrec_swr(state, ops, opcode, host, addr, data);
285 ops->sw(state, opcode, host, addr, data);
288 lightrec_swc2(state, op, ops, host, addr);
291 return (s32) (s8) ops->lb(state, opcode, host, addr);
293 return ops->lb(state, opcode, host, addr);
295 return (s32) (s16) ops->lh(state, opcode, host, addr);
297 return ops->lh(state, opcode, host, addr);
299 lightrec_lwc2(state, op, ops, host, addr);
302 return lightrec_lwl(state, ops, opcode, host, addr, data);
304 return lightrec_lwr(state, ops, opcode, host, addr, data);
307 return ops->lw(state, opcode, host, addr);
311 static void lightrec_rw_helper(struct lightrec_state *state,
312 union code op, u32 *flags,
315 u32 ret = lightrec_rw(state, op, state->regs.gpr[op.i.rs],
316 state->regs.gpr[op.i.rt], flags, block);
327 state->regs.gpr[op.i.rt] = ret;
334 static void lightrec_rw_cb(struct lightrec_state *state, u32 arg)
336 lightrec_rw_helper(state, (union code) arg, NULL, NULL);
339 static void lightrec_rw_generic_cb(struct lightrec_state *state, u32 arg)
344 u16 offset = (u16)arg;
347 block = lightrec_find_block_from_lut(state->block_cache,
348 arg >> 16, state->next_pc);
349 if (unlikely(!block)) {
350 pr_err("rw_generic: No block found in LUT for PC 0x%x offset 0x%x\n",
351 state->next_pc, offset);
352 lightrec_set_exit_flags(state, LIGHTREC_EXIT_SEGFAULT);
356 op = &block->opcode_list[offset];
357 was_tagged = LIGHTREC_FLAGS_GET_IO_MODE(op->flags);
359 lightrec_rw_helper(state, op->c, &op->flags, block);
362 old_flags = block_set_flags(block, BLOCK_SHOULD_RECOMPILE);
364 if (!(old_flags & BLOCK_SHOULD_RECOMPILE)) {
365 pr_debug("Opcode of block at PC 0x%08x has been tagged"
366 " - flag for recompilation\n", block->pc);
368 lut_write(state, lut_offset(block->pc), NULL);
373 static u32 clamp_s32(s32 val, s32 min, s32 max)
375 return val < min ? min : val > max ? max : val;
378 static u16 load_u16(u32 *ptr)
380 return ((struct u16x2 *) ptr)->l;
383 static void store_u16(u32 *ptr, u16 value)
385 ((struct u16x2 *) ptr)->l = value;
388 static u32 lightrec_mfc2(struct lightrec_state *state, u8 reg)
390 s16 gteir1, gteir2, gteir3;
400 return (s32)(s16) load_u16(&state->regs.cp2d[reg]);
406 return load_u16(&state->regs.cp2d[reg]);
409 gteir1 = (s16) load_u16(&state->regs.cp2d[9]);
410 gteir2 = (s16) load_u16(&state->regs.cp2d[10]);
411 gteir3 = (s16) load_u16(&state->regs.cp2d[11]);
413 return clamp_s32(gteir1 >> 7, 0, 0x1f) << 0 |
414 clamp_s32(gteir2 >> 7, 0, 0x1f) << 5 |
415 clamp_s32(gteir3 >> 7, 0, 0x1f) << 10;
420 return state->regs.cp2d[reg];
424 u32 lightrec_mfc(struct lightrec_state *state, union code op)
428 if (op.i.op == OP_CP0)
429 return state->regs.cp0[op.r.rd];
430 else if (op.r.rs == OP_CP2_BASIC_MFC2)
431 return lightrec_mfc2(state, op.r.rd);
433 val = state->regs.cp2c[op.r.rd];
443 return (u32)(s16)val;
449 static void lightrec_mtc0(struct lightrec_state *state, u8 reg, u32 data)
451 u32 status, oldstatus, cause;
459 /* Those registers are read-only */
466 status = state->regs.cp0[12];
469 if (status & ~data & BIT(16)) {
470 state->ops.enable_ram(state, true);
471 lightrec_invalidate_all(state);
472 } else if (~status & data & BIT(16)) {
473 state->ops.enable_ram(state, false);
478 state->regs.cp0[13] &= ~0x300;
479 state->regs.cp0[13] |= data & 0x300;
481 state->regs.cp0[reg] = data;
484 if (reg == 12 || reg == 13) {
485 cause = state->regs.cp0[13];
486 status = state->regs.cp0[12];
488 /* Handle software interrupts */
489 if (!!(status & cause & 0x300) & status)
490 lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
492 /* Handle hardware interrupts */
493 if (reg == 12 && !(~status & 0x401) && (~oldstatus & 0x401))
494 lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
498 static u32 count_leading_bits(s32 data)
503 #if __has_builtin(__builtin_clrsb)
504 return 1 + __builtin_clrsb(data);
508 data = (data ^ (data >> 31)) << 1;
518 static void lightrec_mtc2(struct lightrec_state *state, u8 reg, u32 data)
522 state->regs.cp2d[12] = state->regs.cp2d[13];
523 state->regs.cp2d[13] = state->regs.cp2d[14];
524 state->regs.cp2d[14] = data;
527 state->regs.cp2d[9] = (data << 7) & 0xf80;
528 state->regs.cp2d[10] = (data << 2) & 0xf80;
529 state->regs.cp2d[11] = (data >> 3) & 0xf80;
534 state->regs.cp2d[31] = count_leading_bits((s32) data);
537 state->regs.cp2d[reg] = data;
542 static void lightrec_ctc2(struct lightrec_state *state, u8 reg, u32 data)
552 store_u16(&state->regs.cp2c[reg], data);
555 data = (data & 0x7ffff000) | !!(data & 0x7f87e000) << 31;
558 state->regs.cp2c[reg] = data;
563 void lightrec_mtc(struct lightrec_state *state, union code op, u32 data)
565 if (op.i.op == OP_CP0)
566 lightrec_mtc0(state, op.r.rd, data);
567 else if (op.r.rs == OP_CP2_BASIC_CTC2)
568 lightrec_ctc2(state, op.r.rd, data);
570 lightrec_mtc2(state, op.r.rd, data);
573 static void lightrec_mtc_cb(struct lightrec_state *state, u32 arg)
575 union code op = (union code) arg;
577 lightrec_mtc(state, op, state->regs.gpr[op.r.rt]);
580 void lightrec_rfe(struct lightrec_state *state)
584 /* Read CP0 Status register (r12) */
585 status = state->regs.cp0[12];
587 /* Switch the bits */
588 status = ((status & 0x3c) >> 2) | (status & ~0xf);
591 lightrec_mtc0(state, 12, status);
594 void lightrec_cp(struct lightrec_state *state, union code op)
596 if (op.i.op == OP_CP0) {
597 pr_err("Invalid CP opcode to coprocessor #0\n");
601 (*state->ops.cop2_op)(state, op.opcode);
604 static void lightrec_cp_cb(struct lightrec_state *state, u32 arg)
606 lightrec_cp(state, (union code) arg);
609 static struct block * lightrec_get_block(struct lightrec_state *state, u32 pc)
611 struct block *block = lightrec_find_block(state->block_cache, pc);
614 if (block && lightrec_block_is_outdated(state, block)) {
615 pr_debug("Block at PC 0x%08x is outdated!\n", block->pc);
617 old_flags = block_set_flags(block, BLOCK_IS_DEAD);
618 if (!(old_flags & BLOCK_IS_DEAD)) {
619 /* Make sure the recompiler isn't processing the block
621 if (ENABLE_THREADED_COMPILER)
622 lightrec_recompiler_remove(state->rec, block);
624 lightrec_unregister_block(state->block_cache, block);
625 remove_from_code_lut(state->block_cache, block);
626 lightrec_free_block(state, block);
633 block = lightrec_precompile_block(state, pc);
635 pr_err("Unable to recompile block at PC 0x%x\n", pc);
636 lightrec_set_exit_flags(state, LIGHTREC_EXIT_SEGFAULT);
640 lightrec_register_block(state->block_cache, block);
646 static void * get_next_block_func(struct lightrec_state *state, u32 pc)
649 bool should_recompile;
654 func = lut_read(state, lut_offset(pc));
655 if (func && func != state->get_next_block)
658 block = lightrec_get_block(state, pc);
660 if (unlikely(!block))
663 if (OPT_REPLACE_MEMSET &&
664 block_has_flag(block, BLOCK_IS_MEMSET)) {
665 func = state->memset_func;
669 should_recompile = block_has_flag(block, BLOCK_SHOULD_RECOMPILE) &&
670 !block_has_flag(block, BLOCK_IS_DEAD);
672 if (unlikely(should_recompile)) {
673 pr_debug("Block at PC 0x%08x should recompile\n", pc);
675 if (ENABLE_THREADED_COMPILER) {
676 lightrec_recompiler_add(state->rec, block);
678 err = lightrec_compile_block(state->cstate, block);
680 state->exit_flags = LIGHTREC_EXIT_NOMEM;
686 if (ENABLE_THREADED_COMPILER && likely(!should_recompile))
687 func = lightrec_recompiler_run_first_pass(state, block, &pc);
689 func = block->function;
694 if (unlikely(block_has_flag(block, BLOCK_NEVER_COMPILE))) {
695 pc = lightrec_emulate_block(state, block, pc);
697 } else if (!ENABLE_THREADED_COMPILER) {
698 /* Block wasn't compiled yet - run the interpreter */
699 if (block_has_flag(block, BLOCK_FULLY_TAGGED))
700 pr_debug("Block fully tagged, skipping first pass\n");
701 else if (ENABLE_FIRST_PASS && likely(!should_recompile))
702 pc = lightrec_emulate_block(state, block, pc);
704 /* Then compile it using the profiled data */
705 err = lightrec_compile_block(state->cstate, block);
707 state->exit_flags = LIGHTREC_EXIT_NOMEM;
710 } else if (unlikely(block_has_flag(block, BLOCK_IS_DEAD))) {
712 * If the block is dead but has never been compiled,
713 * then its function pointer is NULL and we cannot
714 * execute the block. In that case, reap all the dead
715 * blocks now, and in the next loop we will create a
718 lightrec_reaper_reap(state->reaper);
720 lightrec_recompiler_add(state->rec, block);
723 if (state->exit_flags != LIGHTREC_EXIT_NORMAL ||
724 state->current_cycle >= state->target_cycle)
732 static void * lightrec_alloc_code(struct lightrec_state *state, size_t size)
736 if (ENABLE_THREADED_COMPILER)
737 lightrec_code_alloc_lock(state);
739 code = tlsf_malloc(state->tlsf, size);
741 if (ENABLE_THREADED_COMPILER)
742 lightrec_code_alloc_unlock(state);
747 static void lightrec_realloc_code(struct lightrec_state *state,
748 void *ptr, size_t size)
750 /* NOTE: 'size' MUST be smaller than the size specified during
753 if (ENABLE_THREADED_COMPILER)
754 lightrec_code_alloc_lock(state);
756 tlsf_realloc(state->tlsf, ptr, size);
758 if (ENABLE_THREADED_COMPILER)
759 lightrec_code_alloc_unlock(state);
762 static void lightrec_free_code(struct lightrec_state *state, void *ptr)
764 if (ENABLE_THREADED_COMPILER)
765 lightrec_code_alloc_lock(state);
767 tlsf_free(state->tlsf, ptr);
769 if (ENABLE_THREADED_COMPILER)
770 lightrec_code_alloc_unlock(state);
773 static void * lightrec_emit_code(struct lightrec_state *state,
774 const struct block *block,
775 jit_state_t *_jit, unsigned int *size)
777 bool has_code_buffer = ENABLE_CODE_BUFFER && state->tlsf;
778 jit_word_t code_size, new_code_size;
783 if (!ENABLE_DISASSEMBLER)
784 jit_set_data(NULL, 0, JIT_DISABLE_DATA | JIT_DISABLE_NOTE);
786 if (has_code_buffer) {
787 jit_get_code(&code_size);
788 code = lightrec_alloc_code(state, (size_t) code_size);
791 if (ENABLE_THREADED_COMPILER) {
792 /* If we're using the threaded compiler, return
793 * an allocation error here. The threaded
794 * compiler will then empty its job queue and
795 * request a code flush using the reaper. */
799 /* Remove outdated blocks, and try again */
800 lightrec_remove_outdated_blocks(state->block_cache, block);
802 pr_debug("Re-try to alloc %zu bytes...\n", code_size);
804 code = lightrec_alloc_code(state, code_size);
806 pr_err("Could not alloc even after removing old blocks!\n");
811 jit_set_code(code, code_size);
816 jit_get_code(&new_code_size);
817 lightrec_register(MEM_FOR_CODE, new_code_size);
819 if (has_code_buffer) {
820 lightrec_realloc_code(state, code, (size_t) new_code_size);
822 pr_debug("Creating code block at address 0x%" PRIxPTR ", "
823 "code size: %" PRIuPTR " new: %" PRIuPTR "\n",
824 (uintptr_t) code, code_size, new_code_size);
827 *size = (unsigned int) new_code_size;
832 static struct block * generate_wrapper(struct lightrec_state *state)
837 jit_node_t *addr[C_WRAPPERS_COUNT - 1];
838 jit_node_t *to_end[C_WRAPPERS_COUNT - 1];
840 block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block));
844 _jit = jit_new_state();
848 jit_name("RW wrapper");
849 jit_note(__FILE__, __LINE__);
851 /* Wrapper entry point */
855 /* Add entry points */
856 for (i = C_WRAPPERS_COUNT - 1; i > 0; i--) {
857 jit_ldxi(JIT_R1, LIGHTREC_REG_STATE,
858 offsetof(struct lightrec_state, c_wrappers[i]));
859 to_end[i - 1] = jit_b();
860 addr[i - 1] = jit_indirect();
863 jit_ldxi(JIT_R1, LIGHTREC_REG_STATE,
864 offsetof(struct lightrec_state, c_wrappers[0]));
866 for (i = 0; i < C_WRAPPERS_COUNT - 1; i++)
867 jit_patch(to_end[i]);
872 /* Save all temporaries on stack */
873 for (i = 0; i < NUM_TEMPS; i++) {
874 if (i + FIRST_TEMP != 1) {
875 jit_stxi(offsetof(struct lightrec_state, wrapper_regs[i]),
876 LIGHTREC_REG_STATE, JIT_R(i + FIRST_TEMP));
880 jit_getarg(JIT_R2, jit_arg());
883 jit_pushargr(LIGHTREC_REG_STATE);
884 jit_pushargr(JIT_R2);
886 jit_ldxi_ui(JIT_R2, LIGHTREC_REG_STATE,
887 offsetof(struct lightrec_state, target_cycle));
889 /* state->current_cycle = state->target_cycle - delta; */
890 jit_subr(LIGHTREC_REG_CYCLE, JIT_R2, LIGHTREC_REG_CYCLE);
891 jit_stxi_i(offsetof(struct lightrec_state, current_cycle),
892 LIGHTREC_REG_STATE, LIGHTREC_REG_CYCLE);
894 /* Call the wrapper function */
897 /* delta = state->target_cycle - state->current_cycle */;
898 jit_ldxi_ui(LIGHTREC_REG_CYCLE, LIGHTREC_REG_STATE,
899 offsetof(struct lightrec_state, current_cycle));
900 jit_ldxi_ui(JIT_R1, LIGHTREC_REG_STATE,
901 offsetof(struct lightrec_state, target_cycle));
902 jit_subr(LIGHTREC_REG_CYCLE, JIT_R1, LIGHTREC_REG_CYCLE);
904 /* Restore temporaries from stack */
905 for (i = 0; i < NUM_TEMPS; i++) {
906 if (i + FIRST_TEMP != 1) {
907 jit_ldxi(JIT_R(i + FIRST_TEMP), LIGHTREC_REG_STATE,
908 offsetof(struct lightrec_state, wrapper_regs[i]));
916 block->opcode_list = NULL;
917 block->flags = BLOCK_NO_OPCODE_LIST;
920 block->function = lightrec_emit_code(state, block, _jit,
922 if (!block->function)
925 state->wrappers_eps[C_WRAPPERS_COUNT - 1] = block->function;
927 for (i = 0; i < C_WRAPPERS_COUNT - 1; i++)
928 state->wrappers_eps[i] = jit_address(addr[i]);
930 if (ENABLE_DISASSEMBLER) {
931 pr_debug("Wrapper block:\n");
939 lightrec_free(state, MEM_FOR_IR, sizeof(*block), block);
941 pr_err("Unable to compile wrapper: Out of memory\n");
945 static u32 lightrec_memset(struct lightrec_state *state)
947 u32 kunseg_pc = kunseg(state->regs.gpr[4]);
949 const struct lightrec_mem_map *map = lightrec_get_map(state, &host, kunseg_pc);
950 u32 length = state->regs.gpr[5] * 4;
953 pr_err("Unable to find memory map for memset target address "
954 "0x%x\n", kunseg_pc);
958 pr_debug("Calling host memset, PC 0x%x (host address 0x%" PRIxPTR ") for %u bytes\n",
959 kunseg_pc, (uintptr_t)host, length);
960 memset(host, 0, length);
962 if (!state->invalidate_from_dma_only)
963 lightrec_invalidate_map(state, map, kunseg_pc, length);
965 /* Rough estimation of the number of cycles consumed */
966 return 8 + 5 * (length + 3 / 4);
969 static struct block * generate_dispatcher(struct lightrec_state *state)
973 jit_node_t *to_end, *loop, *addr, *addr2, *addr3;
977 block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block));
981 _jit = jit_new_state();
985 jit_name("dispatcher");
986 jit_note(__FILE__, __LINE__);
991 jit_getarg(JIT_V1, jit_arg());
992 jit_getarg_i(LIGHTREC_REG_CYCLE, jit_arg());
994 /* Force all callee-saved registers to be pushed on the stack */
995 for (i = 0; i < NUM_REGS; i++)
996 jit_movr(JIT_V(i + FIRST_REG), JIT_V(i + FIRST_REG));
998 /* Pass lightrec_state structure to blocks, using the last callee-saved
999 * register that Lightning provides */
1000 jit_movi(LIGHTREC_REG_STATE, (intptr_t) state);
1004 /* Call the block's code */
1007 if (OPT_REPLACE_MEMSET) {
1008 /* Blocks will jump here when they need to call
1009 * lightrec_memset() */
1010 addr3 = jit_indirect();
1012 jit_movr(JIT_V1, LIGHTREC_REG_CYCLE);
1015 jit_pushargr(LIGHTREC_REG_STATE);
1016 jit_finishi(lightrec_memset);
1018 jit_ldxi_ui(JIT_V0, LIGHTREC_REG_STATE,
1019 offsetof(struct lightrec_state, regs.gpr[31]));
1021 jit_retval(LIGHTREC_REG_CYCLE);
1022 jit_subr(LIGHTREC_REG_CYCLE, JIT_V1, LIGHTREC_REG_CYCLE);
1025 /* The block will jump here, with the number of cycles remaining in
1026 * LIGHTREC_REG_CYCLE */
1027 addr2 = jit_indirect();
1029 /* Store back the next_pc to the lightrec_state structure */
1030 offset = offsetof(struct lightrec_state, next_pc);
1031 jit_stxi_i(offset, LIGHTREC_REG_STATE, JIT_V0);
1033 /* Jump to end if state->target_cycle < state->current_cycle */
1034 to_end = jit_blei(LIGHTREC_REG_CYCLE, 0);
1036 /* Convert next PC to KUNSEG and avoid mirrors */
1037 jit_andi(JIT_V1, JIT_V0, 0x10000000 | (RAM_SIZE - 1));
1038 jit_rshi_u(JIT_R1, JIT_V1, 28);
1039 jit_andi(JIT_R2, JIT_V0, BIOS_SIZE - 1);
1040 jit_addi(JIT_R2, JIT_R2, RAM_SIZE);
1041 jit_movnr(JIT_V1, JIT_R2, JIT_R1);
1043 /* If possible, use the code LUT */
1044 if (!lut_is_32bit(state))
1045 jit_lshi(JIT_V1, JIT_V1, 1);
1046 jit_addr(JIT_V1, JIT_V1, LIGHTREC_REG_STATE);
1048 offset = offsetof(struct lightrec_state, code_lut);
1049 if (lut_is_32bit(state))
1050 jit_ldxi_ui(JIT_V1, JIT_V1, offset);
1052 jit_ldxi(JIT_V1, JIT_V1, offset);
1054 /* If we get non-NULL, loop */
1055 jit_patch_at(jit_bnei(JIT_V1, 0), loop);
1057 /* The code LUT will be set to this address when the block at the target
1058 * PC has been preprocessed but not yet compiled by the threaded
1060 addr = jit_indirect();
1062 /* Slow path: call C function get_next_block_func() */
1064 if (ENABLE_FIRST_PASS || OPT_DETECT_IMPOSSIBLE_BRANCHES) {
1065 /* We may call the interpreter - update state->current_cycle */
1066 jit_ldxi_i(JIT_R2, LIGHTREC_REG_STATE,
1067 offsetof(struct lightrec_state, target_cycle));
1068 jit_subr(JIT_V1, JIT_R2, LIGHTREC_REG_CYCLE);
1069 jit_stxi_i(offsetof(struct lightrec_state, current_cycle),
1070 LIGHTREC_REG_STATE, JIT_V1);
1074 jit_pushargr(LIGHTREC_REG_STATE);
1075 jit_pushargr(JIT_V0);
1077 /* Save the cycles register if needed */
1078 if (!(ENABLE_FIRST_PASS || OPT_DETECT_IMPOSSIBLE_BRANCHES))
1079 jit_movr(JIT_V0, LIGHTREC_REG_CYCLE);
1081 /* Get the next block */
1082 jit_finishi(&get_next_block_func);
1085 if (ENABLE_FIRST_PASS || OPT_DETECT_IMPOSSIBLE_BRANCHES) {
1086 /* The interpreter may have updated state->current_cycle and
1087 * state->target_cycle - recalc the delta */
1088 jit_ldxi_i(JIT_R1, LIGHTREC_REG_STATE,
1089 offsetof(struct lightrec_state, current_cycle));
1090 jit_ldxi_i(JIT_R2, LIGHTREC_REG_STATE,
1091 offsetof(struct lightrec_state, target_cycle));
1092 jit_subr(LIGHTREC_REG_CYCLE, JIT_R2, JIT_R1);
1094 jit_movr(LIGHTREC_REG_CYCLE, JIT_V0);
1097 /* If we get non-NULL, loop */
1098 jit_patch_at(jit_bnei(JIT_V1, 0), loop);
1100 /* When exiting, the recompiled code will jump to that address */
1101 jit_note(__FILE__, __LINE__);
1104 jit_retr(LIGHTREC_REG_CYCLE);
1108 block->opcode_list = NULL;
1109 block->flags = BLOCK_NO_OPCODE_LIST;
1112 block->function = lightrec_emit_code(state, block, _jit,
1114 if (!block->function)
1115 goto err_free_block;
1117 state->eob_wrapper_func = jit_address(addr2);
1118 if (OPT_REPLACE_MEMSET)
1119 state->memset_func = jit_address(addr3);
1120 state->get_next_block = jit_address(addr);
1122 if (ENABLE_DISASSEMBLER) {
1123 pr_debug("Dispatcher block:\n");
1132 lightrec_free(state, MEM_FOR_IR, sizeof(*block), block);
1134 pr_err("Unable to compile dispatcher: Out of memory\n");
1138 union code lightrec_read_opcode(struct lightrec_state *state, u32 pc)
1142 lightrec_get_map(state, &host, kunseg(pc));
1144 const u32 *code = (u32 *)host;
1145 return (union code) LE32TOH(*code);
1148 unsigned int lightrec_cycles_of_opcode(union code code)
1153 void lightrec_free_opcode_list(struct lightrec_state *state, struct opcode *ops)
1155 struct opcode_list *list = container_of(ops, struct opcode_list, ops);
1157 lightrec_free(state, MEM_FOR_IR,
1158 sizeof(*list) + list->nb_ops * sizeof(struct opcode),
1162 static unsigned int lightrec_get_mips_block_len(const u32 *src)
1167 for (i = 1; ; i++) {
1168 c.opcode = LE32TOH(*src++);
1173 if (is_unconditional_jump(c))
1178 static struct opcode * lightrec_disassemble(struct lightrec_state *state,
1179 const u32 *src, unsigned int *len)
1181 struct opcode_list *list;
1182 unsigned int i, length;
1184 length = lightrec_get_mips_block_len(src);
1186 list = lightrec_malloc(state, MEM_FOR_IR,
1187 sizeof(*list) + sizeof(struct opcode) * length);
1189 pr_err("Unable to allocate memory\n");
1193 list->nb_ops = (u16) length;
1195 for (i = 0; i < length; i++) {
1196 list->ops[i].opcode = LE32TOH(src[i]);
1197 list->ops[i].flags = 0;
1200 *len = length * sizeof(u32);
1205 static struct block * lightrec_precompile_block(struct lightrec_state *state,
1208 struct opcode *list;
1209 struct block *block;
1211 const struct lightrec_mem_map *map = lightrec_get_map(state, &host, kunseg(pc));
1212 const u32 *code = (u32 *) host;
1213 unsigned int length;
1220 block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block));
1222 pr_err("Unable to recompile block: Out of memory\n");
1226 list = lightrec_disassemble(state, code, &length);
1228 lightrec_free(state, MEM_FOR_IR, sizeof(*block), block);
1234 block->function = NULL;
1235 block->opcode_list = list;
1239 block->code_size = 0;
1240 block->precompile_date = state->current_cycle;
1241 block->nb_ops = length / sizeof(u32);
1243 lightrec_optimize(state, block);
1245 length = block->nb_ops * sizeof(u32);
1247 lightrec_register(MEM_FOR_MIPS_CODE, length);
1249 if (ENABLE_DISASSEMBLER) {
1250 pr_debug("Disassembled block at PC: 0x%08x\n", block->pc);
1251 lightrec_print_disassembly(block, code);
1254 pr_debug("Block size: %hu opcodes\n", block->nb_ops);
1256 /* If the first opcode is an 'impossible' branch, never compile the
1258 if (should_emulate(block->opcode_list))
1259 block_flags |= BLOCK_NEVER_COMPILE;
1261 fully_tagged = lightrec_block_is_fully_tagged(block);
1263 block_flags |= BLOCK_FULLY_TAGGED;
1266 block_set_flags(block, block_flags);
1268 block->hash = lightrec_calculate_block_hash(block);
1270 if (OPT_REPLACE_MEMSET && block_has_flag(block, BLOCK_IS_MEMSET))
1271 addr = state->memset_func;
1273 addr = state->get_next_block;
1274 lut_write(state, lut_offset(pc), addr);
1276 pr_debug("Recompile count: %u\n", state->nb_precompile++);
1281 static bool lightrec_block_is_fully_tagged(const struct block *block)
1283 const struct opcode *op;
1286 for (i = 0; i < block->nb_ops; i++) {
1287 op = &block->opcode_list[i];
1289 /* Verify that all load/stores of the opcode list
1290 * Check all loads/stores of the opcode list and mark the
1291 * block as fully compiled if they all have been tagged. */
1292 switch (op->c.i.op) {
1307 if (!LIGHTREC_FLAGS_GET_IO_MODE(op->flags))
1318 static void lightrec_reap_block(struct lightrec_state *state, void *data)
1320 struct block *block = data;
1322 pr_debug("Reap dead block at PC 0x%08x\n", block->pc);
1323 lightrec_unregister_block(state->block_cache, block);
1324 lightrec_free_block(state, block);
1327 static void lightrec_reap_jit(struct lightrec_state *state, void *data)
1329 _jit_destroy_state(data);
1332 static void lightrec_free_function(struct lightrec_state *state, void *fn)
1334 if (ENABLE_CODE_BUFFER && state->tlsf) {
1335 pr_debug("Freeing code block at 0x%" PRIxPTR "\n", (uintptr_t) fn);
1336 lightrec_free_code(state, fn);
1340 static void lightrec_reap_function(struct lightrec_state *state, void *data)
1342 lightrec_free_function(state, data);
1345 static void lightrec_reap_opcode_list(struct lightrec_state *state, void *data)
1347 lightrec_free_opcode_list(state, data);
1350 int lightrec_compile_block(struct lightrec_cstate *cstate,
1351 struct block *block)
1353 struct lightrec_state *state = cstate->state;
1354 struct lightrec_branch_target *target;
1355 bool fully_tagged = false;
1356 struct block *block2;
1358 jit_state_t *_jit, *oldjit;
1359 jit_node_t *start_of_block;
1360 bool skip_next = false;
1361 void *old_fn, *new_fn;
1362 size_t old_code_size;
1367 fully_tagged = lightrec_block_is_fully_tagged(block);
1369 block_set_flags(block, BLOCK_FULLY_TAGGED);
1371 _jit = jit_new_state();
1375 oldjit = block->_jit;
1376 old_fn = block->function;
1377 old_code_size = block->code_size;
1380 lightrec_regcache_reset(cstate->reg_cache);
1382 cstate->nb_local_branches = 0;
1383 cstate->nb_targets = 0;
1388 start_of_block = jit_label();
1390 for (i = 0; i < block->nb_ops; i++) {
1391 elm = &block->opcode_list[i];
1398 if (should_emulate(elm)) {
1399 pr_debug("Branch at offset 0x%x will be emulated\n",
1402 lightrec_emit_eob(cstate, block, i, false);
1403 skip_next = !op_flag_no_ds(elm->flags);
1405 lightrec_rec_opcode(cstate, block, i);
1406 skip_next = !op_flag_no_ds(elm->flags) && has_delay_slot(elm->c);
1408 /* FIXME: GNU Lightning on Windows seems to use our
1409 * mapped registers as temporaries. Until the actual bug
1410 * is found and fixed, unconditionally mark our
1411 * registers as live here. */
1412 lightrec_regcache_mark_live(cstate->reg_cache, _jit);
1416 cstate->cycles += lightrec_cycles_of_opcode(elm->c);
1419 for (i = 0; i < cstate->nb_local_branches; i++) {
1420 struct lightrec_branch *branch = &cstate->local_branches[i];
1422 pr_debug("Patch local branch to offset 0x%x\n",
1423 branch->target << 2);
1425 if (branch->target == 0) {
1426 jit_patch_at(branch->branch, start_of_block);
1430 for (j = 0; j < cstate->nb_targets; j++) {
1431 if (cstate->targets[j].offset == branch->target) {
1432 jit_patch_at(branch->branch,
1433 cstate->targets[j].label);
1438 if (j == cstate->nb_targets)
1439 pr_err("Unable to find branch target\n");
1445 new_fn = lightrec_emit_code(state, block, _jit, &block->code_size);
1447 if (!ENABLE_THREADED_COMPILER)
1448 pr_err("Unable to compile block!\n");
1449 block->_jit = oldjit;
1451 _jit_destroy_state(_jit);
1455 /* Pause the reaper, because lightrec_reset_lut_offset() may try to set
1456 * the old block->function pointer to the code LUT. */
1457 if (ENABLE_THREADED_COMPILER)
1458 lightrec_reaper_pause(state->reaper);
1460 block->function = new_fn;
1461 block_clear_flags(block, BLOCK_SHOULD_RECOMPILE);
1463 /* Add compiled function to the LUT */
1464 lut_write(state, lut_offset(block->pc), block->function);
1466 if (ENABLE_THREADED_COMPILER)
1467 lightrec_reaper_continue(state->reaper);
1469 /* Detect old blocks that have been covered by the new one */
1470 for (i = 0; i < cstate->nb_targets; i++) {
1471 target = &cstate->targets[i];
1473 if (!target->offset)
1476 offset = block->pc + target->offset * sizeof(u32);
1478 /* Pause the reaper while we search for the block until we set
1479 * the BLOCK_IS_DEAD flag, otherwise the block may be removed
1480 * under our feet. */
1481 if (ENABLE_THREADED_COMPILER)
1482 lightrec_reaper_pause(state->reaper);
1484 block2 = lightrec_find_block(state->block_cache, offset);
1486 /* No need to check if block2 is compilable - it must
1487 * be, otherwise block wouldn't be compilable either */
1489 /* Set the "block dead" flag to prevent the dynarec from
1490 * recompiling this block */
1491 old_flags = block_set_flags(block2, BLOCK_IS_DEAD);
1494 if (ENABLE_THREADED_COMPILER) {
1495 lightrec_reaper_continue(state->reaper);
1497 /* If block2 was pending for compilation, cancel it.
1498 * If it's being compiled right now, wait until it
1501 lightrec_recompiler_remove(state->rec, block2);
1504 /* We know from now on that block2 (if present) isn't going to
1505 * be compiled. We can override the LUT entry with our new
1506 * block's entry point. */
1507 offset = lut_offset(block->pc) + target->offset;
1508 lut_write(state, offset, jit_address(target->label));
1511 pr_debug("Reap block 0x%08x as it's covered by block "
1512 "0x%08x\n", block2->pc, block->pc);
1514 /* Finally, reap the block. */
1515 if (!ENABLE_THREADED_COMPILER) {
1516 lightrec_unregister_block(state->block_cache, block2);
1517 lightrec_free_block(state, block2);
1518 } else if (!(old_flags & BLOCK_IS_DEAD)) {
1519 lightrec_reaper_add(state->reaper,
1520 lightrec_reap_block,
1526 if (ENABLE_DISASSEMBLER) {
1527 pr_debug("Compiling block at PC: 0x%08x\n", block->pc);
1534 old_flags = block_set_flags(block, BLOCK_NO_OPCODE_LIST);
1536 if (fully_tagged && !(old_flags & BLOCK_NO_OPCODE_LIST)) {
1537 pr_debug("Block PC 0x%08x is fully tagged"
1538 " - free opcode list\n", block->pc);
1540 if (ENABLE_THREADED_COMPILER) {
1541 lightrec_reaper_add(state->reaper,
1542 lightrec_reap_opcode_list,
1543 block->opcode_list);
1545 lightrec_free_opcode_list(state, block->opcode_list);
1550 pr_debug("Block 0x%08x recompiled, reaping old jit context.\n",
1553 if (ENABLE_THREADED_COMPILER) {
1554 lightrec_reaper_add(state->reaper,
1555 lightrec_reap_jit, oldjit);
1556 lightrec_reaper_add(state->reaper,
1557 lightrec_reap_function, old_fn);
1559 _jit_destroy_state(oldjit);
1560 lightrec_free_function(state, old_fn);
1563 lightrec_unregister(MEM_FOR_CODE, old_code_size);
1569 static void lightrec_print_info(struct lightrec_state *state)
1571 if ((state->current_cycle & ~0xfffffff) != state->old_cycle_counter) {
1572 pr_info("Lightrec RAM usage: IR %u KiB, CODE %u KiB, "
1573 "MIPS %u KiB, TOTAL %u KiB, avg. IPI %f\n",
1574 lightrec_get_mem_usage(MEM_FOR_IR) / 1024,
1575 lightrec_get_mem_usage(MEM_FOR_CODE) / 1024,
1576 lightrec_get_mem_usage(MEM_FOR_MIPS_CODE) / 1024,
1577 lightrec_get_total_mem_usage() / 1024,
1578 lightrec_get_average_ipi());
1579 state->old_cycle_counter = state->current_cycle & ~0xfffffff;
1583 u32 lightrec_execute(struct lightrec_state *state, u32 pc, u32 target_cycle)
1585 s32 (*func)(void *, s32) = (void *)state->dispatcher->function;
1589 state->exit_flags = LIGHTREC_EXIT_NORMAL;
1591 /* Handle the cycle counter overflowing */
1592 if (unlikely(target_cycle < state->current_cycle))
1593 target_cycle = UINT_MAX;
1595 state->target_cycle = target_cycle;
1596 state->next_pc = pc;
1598 block_trace = get_next_block_func(state, pc);
1600 cycles_delta = state->target_cycle - state->current_cycle;
1602 cycles_delta = (*func)(block_trace, cycles_delta);
1604 state->current_cycle = state->target_cycle - cycles_delta;
1607 if (ENABLE_THREADED_COMPILER)
1608 lightrec_reaper_reap(state->reaper);
1610 if (LOG_LEVEL >= INFO_L)
1611 lightrec_print_info(state);
1613 return state->next_pc;
1616 u32 lightrec_run_interpreter(struct lightrec_state *state, u32 pc,
1619 struct block *block;
1621 state->exit_flags = LIGHTREC_EXIT_NORMAL;
1622 state->target_cycle = target_cycle;
1625 block = lightrec_get_block(state, pc);
1629 pc = lightrec_emulate_block(state, block, pc);
1631 if (ENABLE_THREADED_COMPILER)
1632 lightrec_reaper_reap(state->reaper);
1633 } while (state->current_cycle < state->target_cycle);
1635 if (LOG_LEVEL >= INFO_L)
1636 lightrec_print_info(state);
1641 void lightrec_free_block(struct lightrec_state *state, struct block *block)
1645 lightrec_unregister(MEM_FOR_MIPS_CODE, block->nb_ops * sizeof(u32));
1646 old_flags = block_set_flags(block, BLOCK_NO_OPCODE_LIST);
1648 if (!(old_flags & BLOCK_NO_OPCODE_LIST))
1649 lightrec_free_opcode_list(state, block->opcode_list);
1651 _jit_destroy_state(block->_jit);
1652 if (block->function) {
1653 lightrec_free_function(state, block->function);
1654 lightrec_unregister(MEM_FOR_CODE, block->code_size);
1656 lightrec_free(state, MEM_FOR_IR, sizeof(*block), block);
1659 struct lightrec_cstate * lightrec_create_cstate(struct lightrec_state *state)
1661 struct lightrec_cstate *cstate;
1663 cstate = lightrec_malloc(state, MEM_FOR_LIGHTREC, sizeof(*cstate));
1667 cstate->reg_cache = lightrec_regcache_init(state);
1668 if (!cstate->reg_cache) {
1669 lightrec_free(state, MEM_FOR_LIGHTREC, sizeof(*cstate), cstate);
1673 cstate->state = state;
1678 void lightrec_free_cstate(struct lightrec_cstate *cstate)
1680 lightrec_free_regcache(cstate->reg_cache);
1681 lightrec_free(cstate->state, MEM_FOR_LIGHTREC, sizeof(*cstate), cstate);
1684 struct lightrec_state * lightrec_init(char *argv0,
1685 const struct lightrec_mem_map *map,
1687 const struct lightrec_ops *ops)
1689 const struct lightrec_mem_map *codebuf_map = &map[PSX_MAP_CODE_BUFFER];
1690 struct lightrec_state *state;
1693 bool with_32bit_lut = false;
1696 /* Sanity-check ops */
1697 if (!ops || !ops->cop2_op || !ops->enable_ram) {
1698 pr_err("Missing callbacks in lightrec_ops structure\n");
1702 if (ENABLE_CODE_BUFFER && nb > PSX_MAP_CODE_BUFFER
1703 && codebuf_map->address) {
1704 tlsf = tlsf_create_with_pool(codebuf_map->address,
1705 codebuf_map->length);
1707 pr_err("Unable to initialize code buffer\n");
1711 if (__WORDSIZE == 64) {
1712 addr = (uintptr_t) codebuf_map->address + codebuf_map->length - 1;
1713 with_32bit_lut = addr == (u32) addr;
1718 lut_size = CODE_LUT_SIZE * 4;
1720 lut_size = CODE_LUT_SIZE * sizeof(void *);
1724 state = calloc(1, sizeof(*state) + lut_size);
1726 goto err_finish_jit;
1728 lightrec_register(MEM_FOR_LIGHTREC, sizeof(*state) + lut_size);
1731 state->with_32bit_lut = with_32bit_lut;
1733 state->block_cache = lightrec_blockcache_init(state);
1734 if (!state->block_cache)
1735 goto err_free_state;
1737 if (ENABLE_THREADED_COMPILER) {
1738 state->rec = lightrec_recompiler_init(state);
1740 goto err_free_block_cache;
1742 state->reaper = lightrec_reaper_init(state);
1744 goto err_free_recompiler;
1746 state->cstate = lightrec_create_cstate(state);
1748 goto err_free_block_cache;
1751 state->nb_maps = nb;
1754 memcpy(&state->ops, ops, sizeof(*ops));
1756 state->dispatcher = generate_dispatcher(state);
1757 if (!state->dispatcher)
1758 goto err_free_reaper;
1760 state->c_wrapper_block = generate_wrapper(state);
1761 if (!state->c_wrapper_block)
1762 goto err_free_dispatcher;
1764 state->c_wrappers[C_WRAPPER_RW] = lightrec_rw_cb;
1765 state->c_wrappers[C_WRAPPER_RW_GENERIC] = lightrec_rw_generic_cb;
1766 state->c_wrappers[C_WRAPPER_MTC] = lightrec_mtc_cb;
1767 state->c_wrappers[C_WRAPPER_CP] = lightrec_cp_cb;
1769 map = &state->maps[PSX_MAP_BIOS];
1770 state->offset_bios = (uintptr_t)map->address - map->pc;
1772 map = &state->maps[PSX_MAP_SCRATCH_PAD];
1773 state->offset_scratch = (uintptr_t)map->address - map->pc;
1775 map = &state->maps[PSX_MAP_HW_REGISTERS];
1776 state->offset_io = (uintptr_t)map->address - map->pc;
1778 map = &state->maps[PSX_MAP_KERNEL_USER_RAM];
1779 state->offset_ram = (uintptr_t)map->address - map->pc;
1781 if (state->maps[PSX_MAP_MIRROR1].address == map->address + 0x200000 &&
1782 state->maps[PSX_MAP_MIRROR2].address == map->address + 0x400000 &&
1783 state->maps[PSX_MAP_MIRROR3].address == map->address + 0x600000)
1784 state->mirrors_mapped = true;
1786 if (state->offset_bios == 0 &&
1787 state->offset_scratch == 0 &&
1788 state->offset_ram == 0 &&
1789 state->offset_io == 0 &&
1790 state->mirrors_mapped) {
1791 pr_info("Memory map is perfect. Emitted code will be best.\n");
1793 pr_info("Memory map is sub-par. Emitted code will be slow.\n");
1796 if (state->with_32bit_lut)
1797 pr_info("Using 32-bit LUT\n");
1801 err_free_dispatcher:
1802 lightrec_free_block(state, state->dispatcher);
1804 if (ENABLE_THREADED_COMPILER)
1805 lightrec_reaper_destroy(state->reaper);
1806 err_free_recompiler:
1807 if (ENABLE_THREADED_COMPILER)
1808 lightrec_free_recompiler(state->rec);
1810 lightrec_free_cstate(state->cstate);
1811 err_free_block_cache:
1812 lightrec_free_block_cache(state->block_cache);
1814 lightrec_unregister(MEM_FOR_LIGHTREC, sizeof(*state) +
1815 lut_elm_size(state) * CODE_LUT_SIZE);
1819 if (ENABLE_CODE_BUFFER && tlsf)
1824 void lightrec_destroy(struct lightrec_state *state)
1826 /* Force a print info on destroy*/
1827 state->current_cycle = ~state->current_cycle;
1828 lightrec_print_info(state);
1830 lightrec_free_block_cache(state->block_cache);
1831 lightrec_free_block(state, state->dispatcher);
1832 lightrec_free_block(state, state->c_wrapper_block);
1834 if (ENABLE_THREADED_COMPILER) {
1835 lightrec_free_recompiler(state->rec);
1836 lightrec_reaper_destroy(state->reaper);
1838 lightrec_free_cstate(state->cstate);
1842 if (ENABLE_CODE_BUFFER && state->tlsf)
1843 tlsf_destroy(state->tlsf);
1845 lightrec_unregister(MEM_FOR_LIGHTREC, sizeof(*state) +
1846 lut_elm_size(state) * CODE_LUT_SIZE);
1850 void lightrec_invalidate(struct lightrec_state *state, u32 addr, u32 len)
1852 u32 kaddr = kunseg(addr & ~0x3);
1853 enum psx_map idx = lightrec_get_map_idx(state, kaddr);
1856 case PSX_MAP_MIRROR1:
1857 case PSX_MAP_MIRROR2:
1858 case PSX_MAP_MIRROR3:
1859 /* Handle mirrors */
1860 kaddr &= RAM_SIZE - 1;
1862 case PSX_MAP_KERNEL_USER_RAM:
1868 memset(lut_address(state, lut_offset(kaddr)), 0,
1869 ((len + 3) / 4) * lut_elm_size(state));
1872 void lightrec_invalidate_all(struct lightrec_state *state)
1874 memset(state->code_lut, 0, lut_elm_size(state) * CODE_LUT_SIZE);
1877 void lightrec_set_invalidate_mode(struct lightrec_state *state, bool dma_only)
1879 if (state->invalidate_from_dma_only != dma_only)
1880 lightrec_invalidate_all(state);
1882 state->invalidate_from_dma_only = dma_only;
1885 void lightrec_set_exit_flags(struct lightrec_state *state, u32 flags)
1887 if (flags != LIGHTREC_EXIT_NORMAL) {
1888 state->exit_flags |= flags;
1889 state->target_cycle = state->current_cycle;
1893 u32 lightrec_exit_flags(struct lightrec_state *state)
1895 return state->exit_flags;
1898 u32 lightrec_current_cycle_count(const struct lightrec_state *state)
1900 return state->current_cycle;
1903 void lightrec_reset_cycle_count(struct lightrec_state *state, u32 cycles)
1905 state->current_cycle = cycles;
1907 if (state->target_cycle < cycles)
1908 state->target_cycle = cycles;
1911 void lightrec_set_target_cycle_count(struct lightrec_state *state, u32 cycles)
1913 if (state->exit_flags == LIGHTREC_EXIT_NORMAL) {
1914 if (cycles < state->current_cycle)
1915 cycles = state->current_cycle;
1917 state->target_cycle = cycles;
1921 struct lightrec_registers * lightrec_get_registers(struct lightrec_state *state)
1923 return &state->regs;