diff options
| -rw-r--r-- | target/xtensa/cpu.h | 8 | ||||
| -rw-r--r-- | target/xtensa/translate.c | 33 |
2 files changed, 33 insertions, 8 deletions
diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h index c59f79e563..a3bab9c5a2 100644 --- a/target/xtensa/cpu.h +++ b/target/xtensa/cpu.h @@ -368,9 +368,17 @@ enum { XTENSA_OP_DIVIDE_BY_ZERO = 0x100, + /* Postprocessing flags */ XTENSA_OP_CHECK_INTERRUPTS = 0x200, XTENSA_OP_EXIT_TB_M1 = 0x400, XTENSA_OP_EXIT_TB_0 = 0x800, + XTENSA_OP_SYNC_REGISTER_WINDOW = 0x1000, + + XTENSA_OP_POSTPROCESS = + XTENSA_OP_CHECK_INTERRUPTS | + XTENSA_OP_EXIT_TB_M1 | + XTENSA_OP_EXIT_TB_0 | + XTENSA_OP_SYNC_REGISTER_WINDOW, XTENSA_OP_NAME_ARRAY = 0x8000, diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c index bda4e9469b..e7ef6a8998 100644 --- a/target/xtensa/translate.c +++ b/target/xtensa/translate.c @@ -71,6 +71,7 @@ struct DisasContext { unsigned cpenable; + uint32_t op_flags; uint32_t *raw_arg; xtensa_insnbuf insnbuf; xtensa_insnbuf slotbuf; @@ -363,6 +364,8 @@ static bool gen_check_cpenable(DisasContext *dc, uint32_t cp_mask) return true; } +static int gen_postprocess(DisasContext *dc, int slot); + static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot) { tcg_gen_mov_i32(cpu_pc, dest); @@ -372,6 +375,9 @@ static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot) if (dc->base.singlestep_enabled) { gen_exception(dc, EXCP_DEBUG); } else { + if (dc->op_flags & XTENSA_OP_POSTPROCESS) { + slot = gen_postprocess(dc, slot); + } if (slot >= 0) { tcg_gen_goto_tb(slot); tcg_gen_exit_tb(dc->base.tb, slot); @@ -846,6 +852,19 @@ static inline unsigned xtensa_op0_insn_len(DisasContext *dc, uint8_t op0) return xtensa_isa_length_from_chars(dc->config->isa, &op0); } +static int gen_postprocess(DisasContext *dc, int slot) +{ + uint32_t op_flags = dc->op_flags; + + if (op_flags & XTENSA_OP_CHECK_INTERRUPTS) { + gen_check_interrupts(dc); + } + if (op_flags & XTENSA_OP_EXIT_TB_M1) { + slot = -1; + } + return slot; +} + struct opcode_arg_info { uint32_t resource; int index; @@ -1211,6 +1230,8 @@ static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc) } } + dc->op_flags = op_flags; + for (slot = 0; slot < slots; ++slot) { struct slot_prop *pslot = ordered[slot]; XtensaOpcodeOps *ops = pslot->ops; @@ -1220,21 +1241,17 @@ static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc) } if (dc->base.is_jmp == DISAS_NEXT) { - if (op_flags & XTENSA_OP_CHECK_INTERRUPTS) { - gen_check_interrupts(dc); - } - + gen_postprocess(dc, 0); + dc->op_flags = 0; if (op_flags & XTENSA_OP_EXIT_TB_M1) { /* Change in mmu index, memory mapping or tb->flags; exit tb */ gen_jumpi_check_loop_end(dc, -1); } else if (op_flags & XTENSA_OP_EXIT_TB_0) { gen_jumpi_check_loop_end(dc, 0); + } else { + gen_check_loop_end(dc, 0); } } - - if (dc->base.is_jmp == DISAS_NEXT) { - gen_check_loop_end(dc, 0); - } dc->pc = dc->base.pc_next; } |