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, u16 *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, u16 *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)
336 lightrec_rw_helper(state, (union code)state->c_wrapper_arg, NULL, NULL);
339 static void lightrec_rw_generic_cb(struct lightrec_state *state)
344 u32 arg = state->c_wrapper_arg;
345 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);
355 op = &block->opcode_list[offset];
356 was_tagged = LIGHTREC_FLAGS_GET_IO_MODE(op->flags);
358 lightrec_rw_helper(state, op->c, &op->flags, block);
361 pr_debug("Opcode of block at PC 0x%08x has been tagged - flag "
362 "for recompilation\n", block->pc);
364 block->flags |= BLOCK_SHOULD_RECOMPILE;
368 static u32 clamp_s32(s32 val, s32 min, s32 max)
370 return val < min ? min : val > max ? max : val;
373 static u16 load_u16(u32 *ptr)
375 return ((struct u16x2 *) ptr)->l;
378 static void store_u16(u32 *ptr, u16 value)
380 ((struct u16x2 *) ptr)->l = value;
383 static u32 lightrec_mfc2(struct lightrec_state *state, u8 reg)
385 s16 gteir1, gteir2, gteir3;
395 return (s32)(s16) load_u16(&state->regs.cp2d[reg]);
401 return load_u16(&state->regs.cp2d[reg]);
404 gteir1 = (s16) load_u16(&state->regs.cp2d[9]);
405 gteir2 = (s16) load_u16(&state->regs.cp2d[10]);
406 gteir3 = (s16) load_u16(&state->regs.cp2d[11]);
408 return clamp_s32(gteir1 >> 7, 0, 0x1f) << 0 |
409 clamp_s32(gteir2 >> 7, 0, 0x1f) << 5 |
410 clamp_s32(gteir3 >> 7, 0, 0x1f) << 10;
415 return state->regs.cp2d[reg];
419 u32 lightrec_mfc(struct lightrec_state *state, union code op)
421 if (op.i.op == OP_CP0)
422 return state->regs.cp0[op.r.rd];
423 else if (op.r.rs == OP_CP2_BASIC_MFC2)
424 return lightrec_mfc2(state, op.r.rd);
426 return state->regs.cp2c[op.r.rd];
429 static void lightrec_mtc0(struct lightrec_state *state, u8 reg, u32 data)
431 u32 status, oldstatus, cause;
439 /* Those registers are read-only */
446 status = state->regs.cp0[12];
449 if (status & ~data & BIT(16)) {
450 state->ops.enable_ram(state, true);
451 lightrec_invalidate_all(state);
452 } else if (~status & data & BIT(16)) {
453 state->ops.enable_ram(state, false);
458 state->regs.cp0[13] &= ~0x300;
459 state->regs.cp0[13] |= data & 0x300;
461 state->regs.cp0[reg] = data;
464 if (reg == 12 || reg == 13) {
465 cause = state->regs.cp0[13];
466 status = state->regs.cp0[12];
468 /* Handle software interrupts */
469 if (!!(status & cause & 0x300) & status)
470 lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
472 /* Handle hardware interrupts */
473 if (reg == 12 && !(~status & 0x401) && (~oldstatus & 0x401))
474 lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT);
478 static u32 count_leading_bits(s32 data)
483 #if __has_builtin(__builtin_clrsb)
484 return 1 + __builtin_clrsb(data);
488 data = (data ^ (data >> 31)) << 1;
498 static void lightrec_mtc2(struct lightrec_state *state, u8 reg, u32 data)
502 state->regs.cp2d[12] = state->regs.cp2d[13];
503 state->regs.cp2d[13] = state->regs.cp2d[14];
504 state->regs.cp2d[14] = data;
507 state->regs.cp2d[9] = (data << 7) & 0xf80;
508 state->regs.cp2d[10] = (data << 2) & 0xf80;
509 state->regs.cp2d[11] = (data >> 3) & 0xf80;
514 state->regs.cp2d[31] = count_leading_bits((s32) data);
517 state->regs.cp2d[reg] = data;
522 static void lightrec_ctc2(struct lightrec_state *state, u8 reg, u32 data)
532 store_u16(&state->regs.cp2c[reg], data);
535 data = (data & 0x7ffff000) | !!(data & 0x7f87e000) << 31;
538 state->regs.cp2c[reg] = data;
543 void lightrec_mtc(struct lightrec_state *state, union code op, u32 data)
545 if (op.i.op == OP_CP0)
546 lightrec_mtc0(state, op.r.rd, data);
547 else if (op.r.rs == OP_CP2_BASIC_CTC2)
548 lightrec_ctc2(state, op.r.rd, data);
550 lightrec_mtc2(state, op.r.rd, data);
553 static void lightrec_mtc_cb(struct lightrec_state *state)
555 union code op = (union code) state->c_wrapper_arg;
557 lightrec_mtc(state, op, state->regs.gpr[op.r.rt]);
560 void lightrec_rfe(struct lightrec_state *state)
564 /* Read CP0 Status register (r12) */
565 status = state->regs.cp0[12];
567 /* Switch the bits */
568 status = ((status & 0x3c) >> 2) | (status & ~0xf);
571 lightrec_mtc0(state, 12, status);
574 void lightrec_cp(struct lightrec_state *state, union code op)
576 if (op.i.op == OP_CP0) {
577 pr_err("Invalid CP opcode to coprocessor #0\n");
581 (*state->ops.cop2_op)(state, op.opcode);
584 static void lightrec_cp_cb(struct lightrec_state *state)
586 lightrec_cp(state, (union code) state->c_wrapper_arg);
589 static void lightrec_syscall_cb(struct lightrec_state *state)
591 lightrec_set_exit_flags(state, LIGHTREC_EXIT_SYSCALL);
594 static void lightrec_break_cb(struct lightrec_state *state)
596 lightrec_set_exit_flags(state, LIGHTREC_EXIT_BREAK);
599 struct block * lightrec_get_block(struct lightrec_state *state, u32 pc)
601 struct block *block = lightrec_find_block(state->block_cache, pc);
603 if (block && lightrec_block_is_outdated(state, block)) {
604 pr_debug("Block at PC 0x%08x is outdated!\n", block->pc);
606 /* Make sure the recompiler isn't processing the block we'll
608 if (ENABLE_THREADED_COMPILER)
609 lightrec_recompiler_remove(state->rec, block);
611 lightrec_unregister_block(state->block_cache, block);
612 remove_from_code_lut(state->block_cache, block);
613 lightrec_free_block(state, block);
618 block = lightrec_precompile_block(state, pc);
620 pr_err("Unable to recompile block at PC 0x%x\n", pc);
621 lightrec_set_exit_flags(state, LIGHTREC_EXIT_SEGFAULT);
625 lightrec_register_block(state->block_cache, block);
631 static void * get_next_block_func(struct lightrec_state *state, u32 pc)
634 bool should_recompile;
639 func = lut_read(state, lut_offset(pc));
640 if (func && func != state->get_next_block)
643 block = lightrec_get_block(state, pc);
645 if (unlikely(!block))
648 if (OPT_REPLACE_MEMSET && (block->flags & BLOCK_IS_MEMSET)) {
649 func = state->memset_func;
653 should_recompile = block->flags & BLOCK_SHOULD_RECOMPILE &&
654 !(block->flags & BLOCK_IS_DEAD);
656 if (unlikely(should_recompile)) {
657 pr_debug("Block at PC 0x%08x should recompile\n", pc);
659 lightrec_unregister(MEM_FOR_CODE, block->code_size);
661 if (ENABLE_THREADED_COMPILER) {
662 lightrec_recompiler_add(state->rec, block);
664 err = lightrec_compile_block(state->cstate, block);
666 state->exit_flags = LIGHTREC_EXIT_NOMEM;
672 if (ENABLE_THREADED_COMPILER && likely(!should_recompile))
673 func = lightrec_recompiler_run_first_pass(state, block, &pc);
675 func = block->function;
680 if (unlikely(block->flags & BLOCK_NEVER_COMPILE)) {
681 pc = lightrec_emulate_block(state, block, pc);
683 } else if (!ENABLE_THREADED_COMPILER) {
684 /* Block wasn't compiled yet - run the interpreter */
685 if (block->flags & BLOCK_FULLY_TAGGED)
686 pr_debug("Block fully tagged, skipping first pass\n");
687 else if (ENABLE_FIRST_PASS && likely(!should_recompile))
688 pc = lightrec_emulate_block(state, block, pc);
690 /* Then compile it using the profiled data */
691 err = lightrec_compile_block(state->cstate, block);
693 state->exit_flags = LIGHTREC_EXIT_NOMEM;
697 lightrec_recompiler_add(state->rec, block);
700 if (state->exit_flags != LIGHTREC_EXIT_NORMAL ||
701 state->current_cycle >= state->target_cycle)
709 static s32 c_function_wrapper(struct lightrec_state *state, s32 cycles_delta,
710 void (*f)(struct lightrec_state *))
712 state->current_cycle = state->target_cycle - cycles_delta;
716 return state->target_cycle - state->current_cycle;
719 static void * lightrec_alloc_code(struct lightrec_state *state, size_t size)
723 if (ENABLE_THREADED_COMPILER)
724 lightrec_code_alloc_lock(state);
726 code = tlsf_malloc(state->tlsf, size);
728 if (ENABLE_THREADED_COMPILER)
729 lightrec_code_alloc_unlock(state);
734 static void lightrec_realloc_code(struct lightrec_state *state,
735 void *ptr, size_t size)
737 /* NOTE: 'size' MUST be smaller than the size specified during
740 if (ENABLE_THREADED_COMPILER)
741 lightrec_code_alloc_lock(state);
743 tlsf_realloc(state->tlsf, ptr, size);
745 if (ENABLE_THREADED_COMPILER)
746 lightrec_code_alloc_unlock(state);
749 static void lightrec_free_code(struct lightrec_state *state, void *ptr)
751 if (ENABLE_THREADED_COMPILER)
752 lightrec_code_alloc_lock(state);
754 tlsf_free(state->tlsf, ptr);
756 if (ENABLE_THREADED_COMPILER)
757 lightrec_code_alloc_unlock(state);
760 static void * lightrec_emit_code(struct lightrec_state *state,
761 const struct block *block,
762 jit_state_t *_jit, unsigned int *size)
764 bool has_code_buffer = ENABLE_CODE_BUFFER && state->tlsf;
765 jit_word_t code_size, new_code_size;
770 if (!ENABLE_DISASSEMBLER)
771 jit_set_data(NULL, 0, JIT_DISABLE_DATA | JIT_DISABLE_NOTE);
773 if (has_code_buffer) {
774 jit_get_code(&code_size);
775 code = lightrec_alloc_code(state, (size_t) code_size);
778 if (ENABLE_THREADED_COMPILER) {
779 /* If we're using the threaded compiler, return
780 * an allocation error here. The threaded
781 * compiler will then empty its job queue and
782 * request a code flush using the reaper. */
786 /* Remove outdated blocks, and try again */
787 lightrec_remove_outdated_blocks(state->block_cache, block);
789 pr_debug("Re-try to alloc %zu bytes...\n", code_size);
791 code = lightrec_alloc_code(state, code_size);
793 pr_err("Could not alloc even after removing old blocks!\n");
798 jit_set_code(code, code_size);
803 jit_get_code(&new_code_size);
804 lightrec_register(MEM_FOR_CODE, new_code_size);
806 if (has_code_buffer) {
807 lightrec_realloc_code(state, code, (size_t) new_code_size);
809 pr_debug("Creating code block at address 0x%" PRIxPTR ", "
810 "code size: %" PRIuPTR " new: %" PRIuPTR "\n",
811 (uintptr_t) code, code_size, new_code_size);
814 *size = (unsigned int) new_code_size;
819 static struct block * generate_wrapper(struct lightrec_state *state)
825 jit_node_t *to_tramp, *to_fn_epilog;
826 jit_node_t *addr[C_WRAPPERS_COUNT - 1];
828 block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block));
832 _jit = jit_new_state();
836 jit_name("RW wrapper");
837 jit_note(__FILE__, __LINE__);
839 /* Wrapper entry point */
843 /* Add entry points; separate them by opcodes that increment
844 * LIGHTREC_REG_STATE (since we cannot touch other registers).
845 * The difference will then tell us which C function to call. */
846 for (i = C_WRAPPERS_COUNT - 1; i > 0; i--) {
847 jit_addi(LIGHTREC_REG_STATE, LIGHTREC_REG_STATE, __WORDSIZE / 8);
848 addr[i - 1] = jit_indirect();
854 stack_ptr = jit_allocai(sizeof(uintptr_t) * NUM_TEMPS);
856 /* Save all temporaries on stack */
857 for (i = 0; i < NUM_TEMPS; i++)
858 jit_stxi(stack_ptr + i * sizeof(uintptr_t), JIT_FP, JIT_R(i));
860 /* Jump to the trampoline */
861 to_tramp = jit_jmpi();
863 /* The trampoline will jump back here */
864 to_fn_epilog = jit_label();
866 /* Restore temporaries from stack */
867 for (i = 0; i < NUM_TEMPS; i++)
868 jit_ldxi(JIT_R(i), JIT_FP, stack_ptr + i * sizeof(uintptr_t));
873 /* Trampoline entry point.
874 * The sole purpose of the trampoline is to cheese Lightning not to
875 * save/restore the callee-saved register LIGHTREC_REG_CYCLE, since we
876 * do want to return to the caller with this register modified. */
881 /* Retrieve the wrapper function */
882 jit_ldxi(JIT_R0, LIGHTREC_REG_STATE,
883 offsetof(struct lightrec_state, c_wrappers));
885 /* Restore LIGHTREC_REG_STATE to its correct value */
886 jit_movi(LIGHTREC_REG_STATE, (uintptr_t) state);
889 jit_pushargr(LIGHTREC_REG_STATE);
890 jit_pushargr(LIGHTREC_REG_CYCLE);
891 jit_pushargr(JIT_R0);
892 jit_finishi(c_function_wrapper);
893 jit_retval_i(LIGHTREC_REG_CYCLE);
895 jit_patch_at(jit_jmpi(), to_fn_epilog);
899 block->opcode_list = NULL;
903 block->function = lightrec_emit_code(state, block, _jit,
905 if (!block->function)
908 state->wrappers_eps[C_WRAPPERS_COUNT - 1] = block->function;
910 for (i = 0; i < C_WRAPPERS_COUNT - 1; i++)
911 state->wrappers_eps[i] = jit_address(addr[i]);
913 if (ENABLE_DISASSEMBLER) {
914 pr_debug("Wrapper block:\n");
922 lightrec_free(state, MEM_FOR_IR, sizeof(*block), block);
924 pr_err("Unable to compile wrapper: Out of memory\n");
928 static u32 lightrec_memset(struct lightrec_state *state)
930 u32 kunseg_pc = kunseg(state->regs.gpr[4]);
932 const struct lightrec_mem_map *map = lightrec_get_map(state, &host, kunseg_pc);
933 u32 length = state->regs.gpr[5] * 4;
936 pr_err("Unable to find memory map for memset target address "
937 "0x%x\n", kunseg_pc);
941 pr_debug("Calling host memset, PC 0x%x (host address 0x%" PRIxPTR ") for %u bytes\n",
942 kunseg_pc, (uintptr_t)host, length);
943 memset(host, 0, length);
945 if (!state->invalidate_from_dma_only)
946 lightrec_invalidate_map(state, map, kunseg_pc, length);
948 /* Rough estimation of the number of cycles consumed */
949 return 8 + 5 * (length + 3 / 4);
952 static struct block * generate_dispatcher(struct lightrec_state *state)
956 jit_node_t *to_end, *loop, *addr, *addr2, *addr3;
960 block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block));
964 _jit = jit_new_state();
968 jit_name("dispatcher");
969 jit_note(__FILE__, __LINE__);
974 jit_getarg(JIT_R0, jit_arg());
975 jit_getarg_i(LIGHTREC_REG_CYCLE, jit_arg());
977 /* Force all callee-saved registers to be pushed on the stack */
978 for (i = 0; i < NUM_REGS; i++)
979 jit_movr(JIT_V(i), JIT_V(i));
981 /* Pass lightrec_state structure to blocks, using the last callee-saved
982 * register that Lightning provides */
983 jit_movi(LIGHTREC_REG_STATE, (intptr_t) state);
987 /* Call the block's code */
990 if (OPT_REPLACE_MEMSET) {
991 /* Blocks will jump here when they need to call
992 * lightrec_memset() */
993 addr3 = jit_indirect();
996 jit_pushargr(LIGHTREC_REG_STATE);
997 jit_finishi(lightrec_memset);
999 jit_ldxi_ui(JIT_V0, LIGHTREC_REG_STATE,
1000 offsetof(struct lightrec_state, regs.gpr[31]));
1003 jit_subr(LIGHTREC_REG_CYCLE, LIGHTREC_REG_CYCLE, JIT_R0);
1006 /* The block will jump here, with the number of cycles remaining in
1007 * LIGHTREC_REG_CYCLE */
1008 addr2 = jit_indirect();
1010 /* Store back the next_pc to the lightrec_state structure */
1011 offset = offsetof(struct lightrec_state, next_pc);
1012 jit_stxi_i(offset, LIGHTREC_REG_STATE, JIT_V0);
1014 /* Jump to end if state->target_cycle < state->current_cycle */
1015 to_end = jit_blei(LIGHTREC_REG_CYCLE, 0);
1017 /* Convert next PC to KUNSEG and avoid mirrors */
1018 jit_andi(JIT_R0, JIT_V0, 0x10000000 | (RAM_SIZE - 1));
1019 jit_rshi_u(JIT_R1, JIT_R0, 28);
1020 jit_andi(JIT_R2, JIT_V0, BIOS_SIZE - 1);
1021 jit_addi(JIT_R2, JIT_R2, RAM_SIZE);
1022 jit_movnr(JIT_R0, JIT_R2, JIT_R1);
1024 /* If possible, use the code LUT */
1025 if (!lut_is_32bit(state))
1026 jit_lshi(JIT_R0, JIT_R0, 1);
1027 jit_addr(JIT_R0, JIT_R0, LIGHTREC_REG_STATE);
1029 offset = offsetof(struct lightrec_state, code_lut);
1030 if (lut_is_32bit(state))
1031 jit_ldxi_ui(JIT_R0, JIT_R0, offset);
1033 jit_ldxi(JIT_R0, JIT_R0, offset);
1035 /* If we get non-NULL, loop */
1036 jit_patch_at(jit_bnei(JIT_R0, 0), loop);
1038 /* Slow path: call C function get_next_block_func() */
1040 if (ENABLE_FIRST_PASS || OPT_DETECT_IMPOSSIBLE_BRANCHES) {
1041 /* We may call the interpreter - update state->current_cycle */
1042 jit_ldxi_i(JIT_R2, LIGHTREC_REG_STATE,
1043 offsetof(struct lightrec_state, target_cycle));
1044 jit_subr(JIT_R1, JIT_R2, LIGHTREC_REG_CYCLE);
1045 jit_stxi_i(offsetof(struct lightrec_state, current_cycle),
1046 LIGHTREC_REG_STATE, JIT_R1);
1049 /* The code LUT will be set to this address when the block at the target
1050 * PC has been preprocessed but not yet compiled by the threaded
1052 addr = jit_indirect();
1054 /* Get the next block */
1056 jit_pushargr(LIGHTREC_REG_STATE);
1057 jit_pushargr(JIT_V0);
1058 jit_finishi(&get_next_block_func);
1061 if (ENABLE_FIRST_PASS || OPT_DETECT_IMPOSSIBLE_BRANCHES) {
1062 /* The interpreter may have updated state->current_cycle and
1063 * state->target_cycle - recalc the delta */
1064 jit_ldxi_i(JIT_R1, LIGHTREC_REG_STATE,
1065 offsetof(struct lightrec_state, current_cycle));
1066 jit_ldxi_i(JIT_R2, LIGHTREC_REG_STATE,
1067 offsetof(struct lightrec_state, target_cycle));
1068 jit_subr(LIGHTREC_REG_CYCLE, JIT_R2, JIT_R1);
1071 /* If we get non-NULL, loop */
1072 jit_patch_at(jit_bnei(JIT_R0, 0), loop);
1074 /* When exiting, the recompiled code will jump to that address */
1075 jit_note(__FILE__, __LINE__);
1078 jit_retr(LIGHTREC_REG_CYCLE);
1082 block->opcode_list = NULL;
1086 block->function = lightrec_emit_code(state, block, _jit,
1088 if (!block->function)
1089 goto err_free_block;
1091 state->eob_wrapper_func = jit_address(addr2);
1092 if (OPT_REPLACE_MEMSET)
1093 state->memset_func = jit_address(addr3);
1094 state->get_next_block = jit_address(addr);
1096 if (ENABLE_DISASSEMBLER) {
1097 pr_debug("Dispatcher block:\n");
1106 lightrec_free(state, MEM_FOR_IR, sizeof(*block), block);
1108 pr_err("Unable to compile dispatcher: Out of memory\n");
1112 union code lightrec_read_opcode(struct lightrec_state *state, u32 pc)
1116 lightrec_get_map(state, &host, kunseg(pc));
1118 const u32 *code = (u32 *)host;
1119 return (union code) LE32TOH(*code);
1122 unsigned int lightrec_cycles_of_opcode(union code code)
1127 void lightrec_free_opcode_list(struct lightrec_state *state, struct block *block)
1129 lightrec_free(state, MEM_FOR_IR,
1130 sizeof(*block->opcode_list) * block->nb_ops,
1131 block->opcode_list);
1134 static unsigned int lightrec_get_mips_block_len(const u32 *src)
1139 for (i = 1; ; i++) {
1140 c.opcode = LE32TOH(*src++);
1145 if (is_unconditional_jump(c))
1150 static struct opcode * lightrec_disassemble(struct lightrec_state *state,
1151 const u32 *src, unsigned int *len)
1153 struct opcode *list;
1154 unsigned int i, length;
1156 length = lightrec_get_mips_block_len(src);
1158 list = lightrec_malloc(state, MEM_FOR_IR, sizeof(*list) * length);
1160 pr_err("Unable to allocate memory\n");
1164 for (i = 0; i < length; i++) {
1165 list[i].opcode = LE32TOH(src[i]);
1169 *len = length * sizeof(u32);
1174 static struct block * lightrec_precompile_block(struct lightrec_state *state,
1177 struct opcode *list;
1178 struct block *block;
1180 const struct lightrec_mem_map *map = lightrec_get_map(state, &host, kunseg(pc));
1181 const u32 *code = (u32 *) host;
1182 unsigned int length;
1188 block = lightrec_malloc(state, MEM_FOR_IR, sizeof(*block));
1190 pr_err("Unable to recompile block: Out of memory\n");
1194 list = lightrec_disassemble(state, code, &length);
1196 lightrec_free(state, MEM_FOR_IR, sizeof(*block), block);
1202 block->function = NULL;
1203 block->opcode_list = list;
1207 block->code_size = 0;
1208 block->precompile_date = state->current_cycle;
1209 #if ENABLE_THREADED_COMPILER
1210 block->op_list_freed = (atomic_flag)ATOMIC_FLAG_INIT;
1212 block->nb_ops = length / sizeof(u32);
1214 lightrec_optimize(state, block);
1216 length = block->nb_ops * sizeof(u32);
1218 lightrec_register(MEM_FOR_MIPS_CODE, length);
1220 if (ENABLE_DISASSEMBLER) {
1221 pr_debug("Disassembled block at PC: 0x%08x\n", block->pc);
1222 lightrec_print_disassembly(block, code);
1225 pr_debug("Block size: %hu opcodes\n", block->nb_ops);
1227 /* If the first opcode is an 'impossible' branch, never compile the
1229 if (should_emulate(block->opcode_list))
1230 block->flags |= BLOCK_NEVER_COMPILE;
1232 fully_tagged = lightrec_block_is_fully_tagged(block);
1234 block->flags |= BLOCK_FULLY_TAGGED;
1236 if (OPT_REPLACE_MEMSET && (block->flags & BLOCK_IS_MEMSET))
1237 lut_write(state, lut_offset(pc), state->memset_func);
1239 block->hash = lightrec_calculate_block_hash(block);
1241 pr_debug("Recompile count: %u\n", state->nb_precompile++);
1246 static bool lightrec_block_is_fully_tagged(const struct block *block)
1248 const struct opcode *op;
1251 for (i = 0; i < block->nb_ops; i++) {
1252 op = &block->opcode_list[i];
1254 /* Verify that all load/stores of the opcode list
1255 * Check all loads/stores of the opcode list and mark the
1256 * block as fully compiled if they all have been tagged. */
1257 switch (op->c.i.op) {
1272 if (!LIGHTREC_FLAGS_GET_IO_MODE(op->flags))
1283 static void lightrec_reap_block(struct lightrec_state *state, void *data)
1285 struct block *block = data;
1287 pr_debug("Reap dead block at PC 0x%08x\n", block->pc);
1288 lightrec_unregister_block(state->block_cache, block);
1289 lightrec_free_block(state, block);
1292 static void lightrec_reap_jit(struct lightrec_state *state, void *data)
1294 _jit_destroy_state(data);
1297 static void lightrec_free_function(struct lightrec_state *state, void *fn)
1299 if (ENABLE_CODE_BUFFER && state->tlsf) {
1300 pr_debug("Freeing code block at 0x%" PRIxPTR "\n", (uintptr_t) fn);
1301 lightrec_free_code(state, fn);
1305 static void lightrec_reap_function(struct lightrec_state *state, void *data)
1307 lightrec_free_function(state, data);
1310 int lightrec_compile_block(struct lightrec_cstate *cstate,
1311 struct block *block)
1313 struct lightrec_state *state = cstate->state;
1314 struct lightrec_branch_target *target;
1315 bool op_list_freed = false, fully_tagged = false;
1316 struct block *block2;
1318 jit_state_t *_jit, *oldjit;
1319 jit_node_t *start_of_block;
1320 bool skip_next = false;
1321 void *old_fn, *new_fn;
1325 fully_tagged = lightrec_block_is_fully_tagged(block);
1327 block->flags |= BLOCK_FULLY_TAGGED;
1329 _jit = jit_new_state();
1333 oldjit = block->_jit;
1334 old_fn = block->function;
1337 lightrec_regcache_reset(cstate->reg_cache);
1339 cstate->nb_branches = 0;
1340 cstate->nb_local_branches = 0;
1341 cstate->nb_targets = 0;
1346 start_of_block = jit_label();
1348 for (i = 0; i < block->nb_ops; i++) {
1349 elm = &block->opcode_list[i];
1356 cstate->cycles += lightrec_cycles_of_opcode(elm->c);
1358 if (should_emulate(elm)) {
1359 pr_debug("Branch at offset 0x%x will be emulated\n",
1362 lightrec_emit_eob(cstate, block, i, false);
1363 skip_next = !(elm->flags & LIGHTREC_NO_DS);
1365 lightrec_rec_opcode(cstate, block, i);
1366 skip_next = has_delay_slot(elm->c) &&
1367 !(elm->flags & LIGHTREC_NO_DS);
1369 /* FIXME: GNU Lightning on Windows seems to use our
1370 * mapped registers as temporaries. Until the actual bug
1371 * is found and fixed, unconditionally mark our
1372 * registers as live here. */
1373 lightrec_regcache_mark_live(cstate->reg_cache, _jit);
1378 for (i = 0; i < cstate->nb_branches; i++)
1379 jit_patch(cstate->branches[i]);
1381 for (i = 0; i < cstate->nb_local_branches; i++) {
1382 struct lightrec_branch *branch = &cstate->local_branches[i];
1384 pr_debug("Patch local branch to offset 0x%x\n",
1385 branch->target << 2);
1387 if (branch->target == 0) {
1388 jit_patch_at(branch->branch, start_of_block);
1392 for (j = 0; j < cstate->nb_targets; j++) {
1393 if (cstate->targets[j].offset == branch->target) {
1394 jit_patch_at(branch->branch,
1395 cstate->targets[j].label);
1400 if (j == cstate->nb_targets)
1401 pr_err("Unable to find branch target\n");
1404 jit_ldxi(JIT_R0, LIGHTREC_REG_STATE,
1405 offsetof(struct lightrec_state, eob_wrapper_func));
1412 new_fn = lightrec_emit_code(state, block, _jit, &block->code_size);
1414 if (!ENABLE_THREADED_COMPILER)
1415 pr_err("Unable to compile block!\n");
1416 block->_jit = oldjit;
1417 _jit_destroy_state(_jit);
1421 block->function = new_fn;
1422 block->flags &= ~BLOCK_SHOULD_RECOMPILE;
1424 /* Add compiled function to the LUT */
1425 lut_write(state, lut_offset(block->pc), block->function);
1427 if (ENABLE_THREADED_COMPILER) {
1428 /* Since we might try to reap the same block multiple times,
1429 * we need the reaper to wait until everything has been
1430 * submitted, so that the duplicate entries can be dropped. */
1431 lightrec_reaper_pause(state->reaper);
1434 /* Detect old blocks that have been covered by the new one */
1435 for (i = 0; i < cstate->nb_targets; i++) {
1436 target = &cstate->targets[i];
1438 if (!target->offset)
1441 offset = block->pc + target->offset * sizeof(u32);
1442 block2 = lightrec_find_block(state->block_cache, offset);
1444 /* No need to check if block2 is compilable - it must
1445 * be, otherwise block wouldn't be compilable either */
1447 /* Set the "block dead" flag to prevent the dynarec from
1448 * recompiling this block */
1449 block2->flags |= BLOCK_IS_DEAD;
1451 /* If block2 was pending for compilation, cancel it.
1452 * If it's being compiled right now, wait until it
1454 if (ENABLE_THREADED_COMPILER)
1455 lightrec_recompiler_remove(state->rec, block2);
1458 /* We know from now on that block2 (if present) isn't going to
1459 * be compiled. We can override the LUT entry with our new
1460 * block's entry point. */
1461 offset = lut_offset(block->pc) + target->offset;
1462 lut_write(state, offset, jit_address(target->label));
1465 pr_debug("Reap block 0x%08x as it's covered by block "
1466 "0x%08x\n", block2->pc, block->pc);
1468 /* Finally, reap the block. */
1469 if (ENABLE_THREADED_COMPILER) {
1470 lightrec_reaper_add(state->reaper,
1471 lightrec_reap_block,
1474 lightrec_unregister_block(state->block_cache, block2);
1475 lightrec_free_block(state, block2);
1480 if (ENABLE_THREADED_COMPILER)
1481 lightrec_reaper_continue(state->reaper);
1483 if (ENABLE_DISASSEMBLER) {
1484 pr_debug("Compiling block at PC: 0x%08x\n", block->pc);
1490 #if ENABLE_THREADED_COMPILER
1492 op_list_freed = atomic_flag_test_and_set(&block->op_list_freed);
1494 if (fully_tagged && !op_list_freed) {
1495 pr_debug("Block PC 0x%08x is fully tagged"
1496 " - free opcode list\n", block->pc);
1497 lightrec_free_opcode_list(state, block);
1498 block->opcode_list = NULL;
1502 pr_debug("Block 0x%08x recompiled, reaping old jit context.\n",
1505 if (ENABLE_THREADED_COMPILER) {
1506 lightrec_reaper_add(state->reaper,
1507 lightrec_reap_jit, oldjit);
1508 lightrec_reaper_add(state->reaper,
1509 lightrec_reap_function, old_fn);
1511 _jit_destroy_state(oldjit);
1512 lightrec_free_function(state, old_fn);
1519 static void lightrec_print_info(struct lightrec_state *state)
1521 if ((state->current_cycle & ~0xfffffff) != state->old_cycle_counter) {
1522 pr_info("Lightrec RAM usage: IR %u KiB, CODE %u KiB, "
1523 "MIPS %u KiB, TOTAL %u KiB, avg. IPI %f\n",
1524 lightrec_get_mem_usage(MEM_FOR_IR) / 1024,
1525 lightrec_get_mem_usage(MEM_FOR_CODE) / 1024,
1526 lightrec_get_mem_usage(MEM_FOR_MIPS_CODE) / 1024,
1527 lightrec_get_total_mem_usage() / 1024,
1528 lightrec_get_average_ipi());
1529 state->old_cycle_counter = state->current_cycle & ~0xfffffff;
1533 u32 lightrec_execute(struct lightrec_state *state, u32 pc, u32 target_cycle)
1535 s32 (*func)(void *, s32) = (void *)state->dispatcher->function;
1539 state->exit_flags = LIGHTREC_EXIT_NORMAL;
1541 /* Handle the cycle counter overflowing */
1542 if (unlikely(target_cycle < state->current_cycle))
1543 target_cycle = UINT_MAX;
1545 state->target_cycle = target_cycle;
1546 state->next_pc = pc;
1548 block_trace = get_next_block_func(state, pc);
1550 cycles_delta = state->target_cycle - state->current_cycle;
1552 cycles_delta = (*func)(block_trace, cycles_delta);
1554 state->current_cycle = state->target_cycle - cycles_delta;
1557 if (ENABLE_THREADED_COMPILER)
1558 lightrec_reaper_reap(state->reaper);
1560 if (LOG_LEVEL >= INFO_L)
1561 lightrec_print_info(state);
1563 return state->next_pc;
1566 u32 lightrec_execute_one(struct lightrec_state *state, u32 pc)
1568 return lightrec_execute(state, pc, state->current_cycle);
1571 u32 lightrec_run_interpreter(struct lightrec_state *state, u32 pc)
1573 struct block *block = lightrec_get_block(state, pc);
1577 state->exit_flags = LIGHTREC_EXIT_NORMAL;
1579 pc = lightrec_emulate_block(state, block, pc);
1581 if (LOG_LEVEL >= INFO_L)
1582 lightrec_print_info(state);
1587 void lightrec_free_block(struct lightrec_state *state, struct block *block)
1589 lightrec_unregister(MEM_FOR_MIPS_CODE, block->nb_ops * sizeof(u32));
1590 if (block->opcode_list)
1591 lightrec_free_opcode_list(state, block);
1593 _jit_destroy_state(block->_jit);
1594 if (block->function) {
1595 lightrec_free_function(state, block->function);
1596 lightrec_unregister(MEM_FOR_CODE, block->code_size);
1598 lightrec_free(state, MEM_FOR_IR, sizeof(*block), block);
1601 struct lightrec_cstate * lightrec_create_cstate(struct lightrec_state *state)
1603 struct lightrec_cstate *cstate;
1605 cstate = lightrec_malloc(state, MEM_FOR_LIGHTREC, sizeof(*cstate));
1609 cstate->reg_cache = lightrec_regcache_init(state);
1610 if (!cstate->reg_cache) {
1611 lightrec_free(state, MEM_FOR_LIGHTREC, sizeof(*cstate), cstate);
1615 cstate->state = state;
1620 void lightrec_free_cstate(struct lightrec_cstate *cstate)
1622 lightrec_free_regcache(cstate->reg_cache);
1623 lightrec_free(cstate->state, MEM_FOR_LIGHTREC, sizeof(*cstate), cstate);
1626 struct lightrec_state * lightrec_init(char *argv0,
1627 const struct lightrec_mem_map *map,
1629 const struct lightrec_ops *ops)
1631 const struct lightrec_mem_map *codebuf_map = &map[PSX_MAP_CODE_BUFFER];
1632 struct lightrec_state *state;
1635 bool with_32bit_lut = false;
1638 /* Sanity-check ops */
1639 if (!ops || !ops->cop2_op || !ops->enable_ram) {
1640 pr_err("Missing callbacks in lightrec_ops structure\n");
1644 if (ENABLE_CODE_BUFFER && nb > PSX_MAP_CODE_BUFFER
1645 && codebuf_map->address) {
1646 tlsf = tlsf_create_with_pool(codebuf_map->address,
1647 codebuf_map->length);
1649 pr_err("Unable to initialize code buffer\n");
1653 if (__WORDSIZE == 64) {
1654 addr = (uintptr_t) codebuf_map->address + codebuf_map->length - 1;
1655 with_32bit_lut = addr == (u32) addr;
1660 lut_size = CODE_LUT_SIZE * 4;
1662 lut_size = CODE_LUT_SIZE * sizeof(void *);
1666 state = calloc(1, sizeof(*state) + lut_size);
1668 goto err_finish_jit;
1670 lightrec_register(MEM_FOR_LIGHTREC, sizeof(*state) + lut_size);
1673 state->with_32bit_lut = with_32bit_lut;
1675 state->block_cache = lightrec_blockcache_init(state);
1676 if (!state->block_cache)
1677 goto err_free_state;
1679 if (ENABLE_THREADED_COMPILER) {
1680 state->rec = lightrec_recompiler_init(state);
1682 goto err_free_block_cache;
1684 state->reaper = lightrec_reaper_init(state);
1686 goto err_free_recompiler;
1688 state->cstate = lightrec_create_cstate(state);
1690 goto err_free_block_cache;
1693 state->nb_maps = nb;
1696 memcpy(&state->ops, ops, sizeof(*ops));
1698 state->dispatcher = generate_dispatcher(state);
1699 if (!state->dispatcher)
1700 goto err_free_reaper;
1702 state->c_wrapper_block = generate_wrapper(state);
1703 if (!state->c_wrapper_block)
1704 goto err_free_dispatcher;
1706 state->c_wrappers[C_WRAPPER_RW] = lightrec_rw_cb;
1707 state->c_wrappers[C_WRAPPER_RW_GENERIC] = lightrec_rw_generic_cb;
1708 state->c_wrappers[C_WRAPPER_MTC] = lightrec_mtc_cb;
1709 state->c_wrappers[C_WRAPPER_CP] = lightrec_cp_cb;
1710 state->c_wrappers[C_WRAPPER_SYSCALL] = lightrec_syscall_cb;
1711 state->c_wrappers[C_WRAPPER_BREAK] = lightrec_break_cb;
1713 map = &state->maps[PSX_MAP_BIOS];
1714 state->offset_bios = (uintptr_t)map->address - map->pc;
1716 map = &state->maps[PSX_MAP_SCRATCH_PAD];
1717 state->offset_scratch = (uintptr_t)map->address - map->pc;
1719 map = &state->maps[PSX_MAP_KERNEL_USER_RAM];
1720 state->offset_ram = (uintptr_t)map->address - map->pc;
1722 if (state->maps[PSX_MAP_MIRROR1].address == map->address + 0x200000 &&
1723 state->maps[PSX_MAP_MIRROR2].address == map->address + 0x400000 &&
1724 state->maps[PSX_MAP_MIRROR3].address == map->address + 0x600000)
1725 state->mirrors_mapped = true;
1727 if (state->offset_bios == 0 &&
1728 state->offset_scratch == 0 &&
1729 state->offset_ram == 0 &&
1730 state->mirrors_mapped) {
1731 pr_info("Memory map is perfect. Emitted code will be best.\n");
1733 pr_info("Memory map is sub-par. Emitted code will be slow.\n");
1736 if (state->with_32bit_lut)
1737 pr_info("Using 32-bit LUT\n");
1741 err_free_dispatcher:
1742 lightrec_free_block(state, state->dispatcher);
1744 if (ENABLE_THREADED_COMPILER)
1745 lightrec_reaper_destroy(state->reaper);
1746 err_free_recompiler:
1747 if (ENABLE_THREADED_COMPILER)
1748 lightrec_free_recompiler(state->rec);
1750 lightrec_free_cstate(state->cstate);
1751 err_free_block_cache:
1752 lightrec_free_block_cache(state->block_cache);
1754 lightrec_unregister(MEM_FOR_LIGHTREC, sizeof(*state) +
1755 lut_elm_size(state) * CODE_LUT_SIZE);
1759 if (ENABLE_CODE_BUFFER && tlsf)
1764 void lightrec_destroy(struct lightrec_state *state)
1766 /* Force a print info on destroy*/
1767 state->current_cycle = ~state->current_cycle;
1768 lightrec_print_info(state);
1770 if (ENABLE_THREADED_COMPILER) {
1771 lightrec_free_recompiler(state->rec);
1772 lightrec_reaper_destroy(state->reaper);
1774 lightrec_free_cstate(state->cstate);
1777 lightrec_free_block_cache(state->block_cache);
1778 lightrec_free_block(state, state->dispatcher);
1779 lightrec_free_block(state, state->c_wrapper_block);
1781 if (ENABLE_CODE_BUFFER && state->tlsf)
1782 tlsf_destroy(state->tlsf);
1784 lightrec_unregister(MEM_FOR_LIGHTREC, sizeof(*state) +
1785 lut_elm_size(state) * CODE_LUT_SIZE);
1789 void lightrec_invalidate(struct lightrec_state *state, u32 addr, u32 len)
1791 u32 kaddr = kunseg(addr & ~0x3);
1792 enum psx_map idx = lightrec_get_map_idx(state, kaddr);
1795 case PSX_MAP_MIRROR1:
1796 case PSX_MAP_MIRROR2:
1797 case PSX_MAP_MIRROR3:
1798 /* Handle mirrors */
1799 kaddr &= RAM_SIZE - 1;
1801 case PSX_MAP_KERNEL_USER_RAM:
1807 memset(lut_address(state, lut_offset(kaddr)), 0,
1808 ((len + 3) / 4) * lut_elm_size(state));
1811 void lightrec_invalidate_all(struct lightrec_state *state)
1813 memset(state->code_lut, 0, lut_elm_size(state) * CODE_LUT_SIZE);
1816 void lightrec_set_invalidate_mode(struct lightrec_state *state, bool dma_only)
1818 if (state->invalidate_from_dma_only != dma_only)
1819 lightrec_invalidate_all(state);
1821 state->invalidate_from_dma_only = dma_only;
1824 void lightrec_set_exit_flags(struct lightrec_state *state, u32 flags)
1826 if (flags != LIGHTREC_EXIT_NORMAL) {
1827 state->exit_flags |= flags;
1828 state->target_cycle = state->current_cycle;
1832 u32 lightrec_exit_flags(struct lightrec_state *state)
1834 return state->exit_flags;
1837 u32 lightrec_current_cycle_count(const struct lightrec_state *state)
1839 return state->current_cycle;
1842 void lightrec_reset_cycle_count(struct lightrec_state *state, u32 cycles)
1844 state->current_cycle = cycles;
1846 if (state->target_cycle < cycles)
1847 state->target_cycle = cycles;
1850 void lightrec_set_target_cycle_count(struct lightrec_state *state, u32 cycles)
1852 if (state->exit_flags == LIGHTREC_EXIT_NORMAL) {
1853 if (cycles < state->current_cycle)
1854 cycles = state->current_cycle;
1856 state->target_cycle = cycles;
1860 struct lightrec_registers * lightrec_get_registers(struct lightrec_state *state)
1862 return &state->regs;