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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a01:111:f403:2613::702; envelope-from=Djordje.Todorovic@htecgroup.com; helo=EUR05-VI1-obe.outbound.protection.outlook.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Fri, 25 Apr 2025 10:04:56 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @htecgroup.com) X-ZM-MESSAGEID: 1745590126214019100 Content-Type: text/plain; charset="utf-8" Add mips.ccmov defined by Xmipscmov. Signed-off-by: Chao-ying Fu Signed-off-by: Djordje Todorovic --- target/riscv/cpu.c | 3 ++ target/riscv/cpu_cfg.h | 6 ++++ target/riscv/insn_trans/trans_xmips.c.inc | 38 +++++++++++++++++++++++ target/riscv/meson.build | 1 + target/riscv/translate.c | 3 ++ target/riscv/xmips.decode | 23 ++++++++++++++ 6 files changed, 74 insertions(+) create mode 100644 target/riscv/insn_trans/trans_xmips.c.inc create mode 100644 target/riscv/xmips.decode diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index d22c1baf09..6d866253f5 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -236,6 +236,7 @@ const RISCVIsaExtData isa_edata_arr[] =3D { ISA_EXT_DATA_ENTRY(xtheadmempair, PRIV_VERSION_1_11_0, ext_xtheadmempa= ir), ISA_EXT_DATA_ENTRY(xtheadsync, PRIV_VERSION_1_11_0, ext_xtheadsync), ISA_EXT_DATA_ENTRY(xventanacondops, PRIV_VERSION_1_12_0, ext_XVentanaC= ondOps), + ISA_EXT_DATA_ENTRY(xmipscmov, PRIV_VERSION_1_12_0, ext_xmipscmov), =20 { }, }; @@ -540,6 +541,7 @@ static void rv64_mips_p8700_cpu_init(Object *obj) cpu->cfg.pmp =3D true; cpu->cfg.ext_zba =3D true; cpu->cfg.ext_zbb =3D true; + cpu->cfg.ext_xmipscmov =3D true; cpu->cfg.marchid =3D 0x8000000000000201; } =20 @@ -1756,6 +1758,7 @@ const RISCVCPUMultiExtConfig riscv_cpu_vendor_exts[] = =3D { MULTI_EXT_CFG_BOOL("xtheadmempair", ext_xtheadmempair, false), MULTI_EXT_CFG_BOOL("xtheadsync", ext_xtheadsync, false), MULTI_EXT_CFG_BOOL("xventanacondops", ext_XVentanaCondOps, false), + MULTI_EXT_CFG_BOOL("xmipscmov", ext_xmipscmov, false), =20 { }, }; diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index 8a843482cc..e6cce7fdf8 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -182,6 +182,7 @@ struct RISCVCPUConfig { bool ext_xtheadmempair; bool ext_xtheadsync; bool ext_XVentanaCondOps; + bool ext_xmipscmov; =20 uint32_t pmu_mask; uint16_t vlenb; @@ -210,6 +211,11 @@ static inline bool always_true_p(const RISCVCPUConfig = *cfg __attribute__((__unus return true; } =20 +static inline bool has_xmips_p(const RISCVCPUConfig *cfg) +{ + return cfg->ext_xmipscmov; +} + static inline bool has_xthead_p(const RISCVCPUConfig *cfg) { return cfg->ext_xtheadba || cfg->ext_xtheadbb || diff --git a/target/riscv/insn_trans/trans_xmips.c.inc b/target/riscv/insn_= trans/trans_xmips.c.inc new file mode 100644 index 0000000000..a555c94e23 --- /dev/null +++ b/target/riscv/insn_trans/trans_xmips.c.inc @@ -0,0 +1,38 @@ +/* + * RISC-V translation routines for the MIPS extensions (xmips*). + * + * Copyright (c) 2025 MIPS + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2.1 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License f= or + * more details. + * + * You should have received a copy of the GNU General Public License along= with + * this program. If not, see . + */ + +#define REQUIRE_XMIPSCMOV(ctx) do { \ + if (!ctx->cfg_ptr->ext_xmipscmov) { \ + return false; \ + } \ +} while (0) + +static bool trans_ccmov(DisasContext *ctx, arg_ccmov *a) +{ + REQUIRE_XMIPSCMOV(ctx); + + TCGv zero, source1, source2, source3; + zero =3D tcg_constant_tl(0); + source1 =3D get_gpr(ctx, a->rs1, EXT_NONE); + source2 =3D get_gpr(ctx, a->rs2, EXT_NONE); + source3 =3D get_gpr(ctx, a->rs3, EXT_NONE); + + tcg_gen_movcond_tl(TCG_COND_NE, cpu_gpr[a->rd], source2, zero, source1= , source3); + + return true; +} diff --git a/target/riscv/meson.build b/target/riscv/meson.build index fbb6c8fb45..26cd11ec00 100644 --- a/target/riscv/meson.build +++ b/target/riscv/meson.build @@ -4,6 +4,7 @@ gen =3D [ decodetree.process('insn32.decode', extra_args: '--static-decode=3Ddecod= e_insn32'), decodetree.process('xthead.decode', extra_args: '--static-decode=3Ddecod= e_xthead'), decodetree.process('XVentanaCondOps.decode', extra_args: '--static-decod= e=3Ddecode_XVentanaCodeOps'), + decodetree.process('xmips.decode', extra_args: '--static-decode=3Ddecode= _xmips'), ] =20 riscv_ss =3D ss.source_set() diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 2b8ddd184f..0dcb9c0a49 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -1195,8 +1195,10 @@ static uint32_t opcode_at(DisasContextBase *dcbase, = target_ulong pc) #include "insn_trans/trans_svinval.c.inc" #include "insn_trans/trans_rvbf16.c.inc" #include "decode-xthead.c.inc" +#include "decode-xmips.c.inc" #include "insn_trans/trans_xthead.c.inc" #include "insn_trans/trans_xventanacondops.c.inc" +#include "insn_trans/trans_xmips.c.inc" =20 /* Include the auto-generated decoder for 16 bit insn */ #include "decode-insn16.c.inc" @@ -1217,6 +1219,7 @@ static inline int insn_len(uint16_t first_word) =20 const RISCVDecoder decoder_table[] =3D { { always_true_p, decode_insn32 }, + { has_xmips_p, decode_xmips}, { has_xthead_p, decode_xthead}, { has_XVentanaCondOps_p, decode_XVentanaCodeOps}, }; diff --git a/target/riscv/xmips.decode b/target/riscv/xmips.decode new file mode 100644 index 0000000000..94d37c10ae --- /dev/null +++ b/target/riscv/xmips.decode @@ -0,0 +1,23 @@ +# +# RISC-V translation routines for the MIPS extension +# +# Copyright (c) 2025 MIPS +# +# SPDX-License-Identifier: LGPL-2.1-or-later +# +# Reference: MIPS P8700 instructions +# (https://mips.com/products/hardware/p8700/) + +# Fields +%rs3 27:5 +%rs2 20:5 +%rs1 15:5 +%rd 7:5 + +# Argument sets + +# Formats +@r4 ..... .. ..... ..... ... ..... ....... %rs3 %rs2 %rs1 %rd + +# *** RV64 MIPS Extension *** +ccmov .....11 ..... ..... 011 ..... 0001011 @r4 --=20 2.34.1