trans_atomic.c.inc (4580B)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright (c) 2021 Loongson Technology Corporation Limited 4 */ 5 6 static bool gen_ll(DisasContext *ctx, arg_rr_i *a, MemOp mop) 7 { 8 TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); 9 TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); 10 TCGv t0 = tcg_temp_new(); 11 12 tcg_gen_addi_tl(t0, src1, a->imm); 13 tcg_gen_qemu_ld_i64(dest, t0, ctx->mem_idx, mop); 14 tcg_gen_st_tl(t0, cpu_env, offsetof(CPULoongArchState, lladdr)); 15 tcg_gen_st_tl(dest, cpu_env, offsetof(CPULoongArchState, llval)); 16 gen_set_gpr(a->rd, dest, EXT_NONE); 17 tcg_temp_free(t0); 18 19 return true; 20 } 21 22 static bool gen_sc(DisasContext *ctx, arg_rr_i *a, MemOp mop) 23 { 24 TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); 25 TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); 26 TCGv src2 = gpr_src(ctx, a->rd, EXT_NONE); 27 TCGv t0 = tcg_temp_new(); 28 TCGv val = tcg_temp_new(); 29 30 TCGLabel *l1 = gen_new_label(); 31 TCGLabel *done = gen_new_label(); 32 33 tcg_gen_addi_tl(t0, src1, a->imm); 34 tcg_gen_brcond_tl(TCG_COND_EQ, t0, cpu_lladdr, l1); 35 tcg_gen_movi_tl(dest, 0); 36 tcg_gen_br(done); 37 38 gen_set_label(l1); 39 tcg_gen_mov_tl(val, src2); 40 /* generate cmpxchg */ 41 tcg_gen_atomic_cmpxchg_tl(t0, cpu_lladdr, cpu_llval, 42 val, ctx->mem_idx, mop); 43 tcg_gen_setcond_tl(TCG_COND_EQ, dest, t0, cpu_llval); 44 gen_set_label(done); 45 gen_set_gpr(a->rd, dest, EXT_NONE); 46 tcg_temp_free(t0); 47 tcg_temp_free(val); 48 49 return true; 50 } 51 52 static bool gen_am(DisasContext *ctx, arg_rrr *a, 53 void (*func)(TCGv, TCGv, TCGv, TCGArg, MemOp), 54 MemOp mop) 55 { 56 TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); 57 TCGv addr = gpr_src(ctx, a->rj, EXT_NONE); 58 TCGv val = gpr_src(ctx, a->rk, EXT_NONE); 59 60 if (a->rd != 0 && (a->rj == a->rd || a->rk == a->rd)) { 61 qemu_log_mask(LOG_GUEST_ERROR, 62 "Warning: source register overlaps destination register" 63 "in atomic insn at pc=0x" TARGET_FMT_lx "\n", 64 ctx->base.pc_next - 4); 65 return false; 66 } 67 68 func(dest, addr, val, ctx->mem_idx, mop); 69 gen_set_gpr(a->rd, dest, EXT_NONE); 70 71 return true; 72 } 73 74 TRANS(ll_w, gen_ll, MO_TESL) 75 TRANS(sc_w, gen_sc, MO_TESL) 76 TRANS(ll_d, gen_ll, MO_TEUQ) 77 TRANS(sc_d, gen_sc, MO_TEUQ) 78 TRANS(amswap_w, gen_am, tcg_gen_atomic_xchg_tl, MO_TESL) 79 TRANS(amswap_d, gen_am, tcg_gen_atomic_xchg_tl, MO_TEUQ) 80 TRANS(amadd_w, gen_am, tcg_gen_atomic_fetch_add_tl, MO_TESL) 81 TRANS(amadd_d, gen_am, tcg_gen_atomic_fetch_add_tl, MO_TEUQ) 82 TRANS(amand_w, gen_am, tcg_gen_atomic_fetch_and_tl, MO_TESL) 83 TRANS(amand_d, gen_am, tcg_gen_atomic_fetch_and_tl, MO_TEUQ) 84 TRANS(amor_w, gen_am, tcg_gen_atomic_fetch_or_tl, MO_TESL) 85 TRANS(amor_d, gen_am, tcg_gen_atomic_fetch_or_tl, MO_TEUQ) 86 TRANS(amxor_w, gen_am, tcg_gen_atomic_fetch_xor_tl, MO_TESL) 87 TRANS(amxor_d, gen_am, tcg_gen_atomic_fetch_xor_tl, MO_TEUQ) 88 TRANS(ammax_w, gen_am, tcg_gen_atomic_fetch_smax_tl, MO_TESL) 89 TRANS(ammax_d, gen_am, tcg_gen_atomic_fetch_smax_tl, MO_TEUQ) 90 TRANS(ammin_w, gen_am, tcg_gen_atomic_fetch_smin_tl, MO_TESL) 91 TRANS(ammin_d, gen_am, tcg_gen_atomic_fetch_smin_tl, MO_TEUQ) 92 TRANS(ammax_wu, gen_am, tcg_gen_atomic_fetch_umax_tl, MO_TESL) 93 TRANS(ammax_du, gen_am, tcg_gen_atomic_fetch_umax_tl, MO_TEUQ) 94 TRANS(ammin_wu, gen_am, tcg_gen_atomic_fetch_umin_tl, MO_TESL) 95 TRANS(ammin_du, gen_am, tcg_gen_atomic_fetch_umin_tl, MO_TEUQ) 96 TRANS(amswap_db_w, gen_am, tcg_gen_atomic_xchg_tl, MO_TESL) 97 TRANS(amswap_db_d, gen_am, tcg_gen_atomic_xchg_tl, MO_TEUQ) 98 TRANS(amadd_db_w, gen_am, tcg_gen_atomic_fetch_add_tl, MO_TESL) 99 TRANS(amadd_db_d, gen_am, tcg_gen_atomic_fetch_add_tl, MO_TEUQ) 100 TRANS(amand_db_w, gen_am, tcg_gen_atomic_fetch_and_tl, MO_TESL) 101 TRANS(amand_db_d, gen_am, tcg_gen_atomic_fetch_and_tl, MO_TEUQ) 102 TRANS(amor_db_w, gen_am, tcg_gen_atomic_fetch_or_tl, MO_TESL) 103 TRANS(amor_db_d, gen_am, tcg_gen_atomic_fetch_or_tl, MO_TEUQ) 104 TRANS(amxor_db_w, gen_am, tcg_gen_atomic_fetch_xor_tl, MO_TESL) 105 TRANS(amxor_db_d, gen_am, tcg_gen_atomic_fetch_xor_tl, MO_TEUQ) 106 TRANS(ammax_db_w, gen_am, tcg_gen_atomic_fetch_smax_tl, MO_TESL) 107 TRANS(ammax_db_d, gen_am, tcg_gen_atomic_fetch_smax_tl, MO_TEUQ) 108 TRANS(ammin_db_w, gen_am, tcg_gen_atomic_fetch_smin_tl, MO_TESL) 109 TRANS(ammin_db_d, gen_am, tcg_gen_atomic_fetch_smin_tl, MO_TEUQ) 110 TRANS(ammax_db_wu, gen_am, tcg_gen_atomic_fetch_umax_tl, MO_TESL) 111 TRANS(ammax_db_du, gen_am, tcg_gen_atomic_fetch_umax_tl, MO_TEUQ) 112 TRANS(ammin_db_wu, gen_am, tcg_gen_atomic_fetch_umin_tl, MO_TESL) 113 TRANS(ammin_db_du, gen_am, tcg_gen_atomic_fetch_umin_tl, MO_TEUQ)