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b=KP4PrgXCgcdEfDw7d3IcIyKUO3lffCRVYVSf9Bev5ouBK8j4CUompbSGrGrbr4zlwwImHlgQOKbrz38EDKMOToM8G7kEkGdVMRPvEasnjOZj6uDTFR7I8eTmbBzPSVbt9ktm8dy31Wq2KCb2muVHU4hs/ZFUvTSfWaW0ZnqbPXfuG7CV2Jf0XpZp6YnswVns7Plmb+8PMjMPg0CBJ+CL6r9YnWXgi6inBivL2ScCfhbvm3iBQIhhWxfj8EfTs+n2wiKnydjAH69iSPza9MYiM5fYL+JLg7rYRgpjNTWf0qJ1WjZNZ37509SSkMo6UVLiuWZ3BFdwWhFvGwyCyO5tdA== From: Djordje Todorovic To: "qemu-devel@nongnu.org" CC: "qemu-riscv@nongnu.org" , "cfu@mips.com" , "mst@redhat.com" , "marcel.apfelbaum@gmail.com" , "dbarboza@ventanamicro.com" , "philmd@linaro.org" , Djordje Todorovic Subject: [PATCH v8 06/14] target/riscv: Add mips.pref instruction Thread-Topic: [PATCH v8 06/14] target/riscv: Add mips.pref instruction Thread-Index: AQHcLTQo8VdT08KXYkOLNhB/TfR/uw== Date: Wed, 24 Sep 2025 09:18:15 +0000 Message-ID: <20250924091746.1882125-7-djordje.todorovic@htecgroup.com> References: <20250924091746.1882125-1-djordje.todorovic@htecgroup.com> In-Reply-To: <20250924091746.1882125-1-djordje.todorovic@htecgroup.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=htecgroup.com; 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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:c200::3; envelope-from=Djordje.Todorovic@htecgroup.com; helo=DU2PR03CU002.outbound.protection.outlook.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 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, FORGED_SPF_HELO=1, SPF_HELO_PASS=-0.001, T_SPF_TEMPERROR=0.01 autolearn=no autolearn_force=no X-Spam_action: no action 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: 1758705641284116600 Content-Type: text/plain; charset="utf-8" Add MIPS P8700 prefetch instruction defined by Xmipscbop. Signed-off-by: Chao-ying Fu Signed-off-by: Djordje Todorovic Reviewed-by: Daniel Henrique Barboza --- target/riscv/cpu.c | 3 +++ target/riscv/cpu_cfg.h | 2 +- target/riscv/cpu_cfg_fields.h.inc | 1 + target/riscv/insn_trans/trans_xmips.c.inc | 14 ++++++++++++++ target/riscv/xmips.decode | 1 + 5 files changed, 20 insertions(+), 1 deletion(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 77fbf67776..87f9eb7ac4 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -247,6 +247,7 @@ const RISCVIsaExtData isa_edata_arr[] =3D { ISA_EXT_DATA_ENTRY(svrsw60t59b, PRIV_VERSION_1_13_0, ext_svrsw60t59b), ISA_EXT_DATA_ENTRY(svukte, PRIV_VERSION_1_13_0, ext_svukte), ISA_EXT_DATA_ENTRY(svvptc, PRIV_VERSION_1_13_0, ext_svvptc), + ISA_EXT_DATA_ENTRY(xmipscbop, PRIV_VERSION_1_12_0, ext_xmipscbop), ISA_EXT_DATA_ENTRY(xmipscmov, PRIV_VERSION_1_12_0, ext_xmipscmov), ISA_EXT_DATA_ENTRY(xtheadba, PRIV_VERSION_1_11_0, ext_xtheadba), ISA_EXT_DATA_ENTRY(xtheadbb, PRIV_VERSION_1_11_0, ext_xtheadbb), @@ -1380,6 +1381,7 @@ 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("xmipscbop", ext_xmipscbop, false), MULTI_EXT_CFG_BOOL("xmipscmov", ext_xmipscmov, false), =20 { }, @@ -3295,6 +3297,7 @@ static const TypeInfo riscv_cpu_type_infos[] =3D { .cfg.pmp =3D true, .cfg.ext_zba =3D true, .cfg.ext_zbb =3D true, + .cfg.ext_xmipscbop =3D true, .cfg.ext_xmipscmov =3D true, .cfg.marchid =3D 0x8000000000000201, .cfg.mvendorid =3D MIPS_VENDOR_ID, diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index 2db471ad17..e4d5039c49 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -38,7 +38,7 @@ static inline bool always_true_p(const RISCVCPUConfig *cf= g __attribute__((__unus =20 static inline bool has_xmips_p(const RISCVCPUConfig *cfg) { - return cfg->ext_xmipscmov; + return cfg->ext_xmipscbop || cfg->ext_xmipscmov; } =20 static inline bool has_xthead_p(const RISCVCPUConfig *cfg) diff --git a/target/riscv/cpu_cfg_fields.h.inc b/target/riscv/cpu_cfg_field= s.h.inc index a290303ee7..dd3ee7ba2b 100644 --- a/target/riscv/cpu_cfg_fields.h.inc +++ b/target/riscv/cpu_cfg_fields.h.inc @@ -147,6 +147,7 @@ BOOL_FIELD(ext_xtheadmemidx) BOOL_FIELD(ext_xtheadmempair) BOOL_FIELD(ext_xtheadsync) BOOL_FIELD(ext_XVentanaCondOps) +BOOL_FIELD(ext_xmipscbop) BOOL_FIELD(ext_xmipscmov) =20 BOOL_FIELD(mmu) diff --git a/target/riscv/insn_trans/trans_xmips.c.inc b/target/riscv/insn_= trans/trans_xmips.c.inc index 045034ae32..95b8238081 100644 --- a/target/riscv/insn_trans/trans_xmips.c.inc +++ b/target/riscv/insn_trans/trans_xmips.c.inc @@ -9,6 +9,12 @@ * (https://mips.com/products/hardware/p8700/) */ =20 +#define REQUIRE_XMIPSCBOP(ctx) do { \ + if (!ctx->cfg_ptr->ext_xmipscbop) { \ + return false; \ + } \ +} while (0) + #define REQUIRE_XMIPSCMOV(ctx) do { \ if (!ctx->cfg_ptr->ext_xmipscmov) { \ return false; \ @@ -30,3 +36,11 @@ static bool trans_ccmov(DisasContext *ctx, arg_ccmov *a) =20 return true; } + +static bool trans_pref(DisasContext *ctx, arg_pref *a) +{ + REQUIRE_XMIPSCBOP(ctx); + + /* Nop */ + return true; +} diff --git a/target/riscv/xmips.decode b/target/riscv/xmips.decode index fadcb78470..4215813b32 100644 --- a/target/riscv/xmips.decode +++ b/target/riscv/xmips.decode @@ -9,3 +9,4 @@ # (https://mips.com/products/hardware/p8700/) =20 ccmov rs3:5 11 rs2:5 rs1:5 011 rd:5 0001011 +pref 000 imm_9:9 rs1:5 000 imm_hint:5 0001011 --=20 2.34.1