| 1 | /* |
| 2 | * RISC-V translation routines for the RISC-V CBO Extension. |
| 3 | * |
| 4 | * Copyright (c) 2021 Philipp Tomsich, philipp.tomsich@vrull.eu |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms and conditions of the GNU General Public License, |
| 8 | * version 2 or later, as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 13 | * more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along with |
| 16 | * this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 | */ |
| 18 | |
| 19 | #define REQUIRE_ZICBOM(ctx) do { \ |
| 20 | if (!ctx->cfg_ptr->ext_zicbom) { \ |
| 21 | return false; \ |
| 22 | } \ |
| 23 | } while (0) |
| 24 | |
| 25 | #define REQUIRE_ZICBOZ(ctx) do { \ |
| 26 | if (!ctx->cfg_ptr->ext_zicboz) { \ |
| 27 | return false; \ |
| 28 | } \ |
| 29 | } while (0) |
| 30 | |
| 31 | static bool trans_cbo_clean(DisasContext *ctx, arg_cbo_clean *a) |
| 32 | { |
| 33 | REQUIRE_ZICBOM(ctx); |
| 34 | TCGv src = get_address(ctx, a->rs1, 0); |
| 35 | |
| 36 | /* The helper may raise ILLEGAL_INSN -- record binv for unwind. */ |
| 37 | decode_save_opc(ctx, 0); |
| 38 | gen_helper_cbo_clean_flush(tcg_env, src); |
| 39 | return true; |
| 40 | } |
| 41 | |
| 42 | static bool trans_cbo_flush(DisasContext *ctx, arg_cbo_flush *a) |
| 43 | { |
| 44 | REQUIRE_ZICBOM(ctx); |
| 45 | TCGv src = get_address(ctx, a->rs1, 0); |
| 46 | |
| 47 | /* The helper may raise ILLEGAL_INSN -- record binv for unwind. */ |
| 48 | decode_save_opc(ctx, 0); |
| 49 | gen_helper_cbo_clean_flush(tcg_env, src); |
| 50 | return true; |
| 51 | } |
| 52 | |
| 53 | static bool trans_cbo_inval(DisasContext *ctx, arg_cbo_inval *a) |
| 54 | { |
| 55 | REQUIRE_ZICBOM(ctx); |
| 56 | TCGv src = get_address(ctx, a->rs1, 0); |
| 57 | |
| 58 | /* The helper may raise ILLEGAL_INSN -- record binv for unwind. */ |
| 59 | decode_save_opc(ctx, 0); |
| 60 | gen_helper_cbo_inval(tcg_env, src); |
| 61 | return true; |
| 62 | } |
| 63 | |
| 64 | static bool trans_cbo_zero(DisasContext *ctx, arg_cbo_zero *a) |
| 65 | { |
| 66 | REQUIRE_ZICBOZ(ctx); |
| 67 | TCGv src = get_address(ctx, a->rs1, 0); |
| 68 | |
| 69 | /* The helper may raise ILLEGAL_INSN -- record binv for unwind. */ |
| 70 | decode_save_opc(ctx, 0); |
| 71 | gen_helper_cbo_zero(tcg_env, src); |
| 72 | return true; |
| 73 | } |