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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: 1745589983733019100 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 --- target/riscv/cpu.c | 3 +++ target/riscv/cpu_cfg.h | 3 ++- target/riscv/insn_trans/trans_xmips.c.inc | 14 ++++++++++++++ target/riscv/xmips.decode | 4 ++++ 4 files changed, 23 insertions(+), 1 deletion(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 6d866253f5..d201a0dd02 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(xmipscbop, PRIV_VERSION_1_12_0, ext_xmipscbop), ISA_EXT_DATA_ENTRY(xmipscmov, PRIV_VERSION_1_12_0, ext_xmipscmov), =20 { }, @@ -541,6 +542,7 @@ 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_xmipscbop =3D true; cpu->cfg.ext_xmipscmov =3D true; cpu->cfg.marchid =3D 0x8000000000000201; } @@ -1758,6 +1760,7 @@ 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 { }, diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index e6cce7fdf8..9643625018 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_xmipscbop; bool ext_xmipscmov; =20 uint32_t pmu_mask; @@ -213,7 +214,7 @@ static inline bool always_true_p(const RISCVCPUConfig *= cfg __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/insn_trans/trans_xmips.c.inc b/target/riscv/insn_= trans/trans_xmips.c.inc index a555c94e23..375970defc 100644 --- a/target/riscv/insn_trans/trans_xmips.c.inc +++ b/target/riscv/insn_trans/trans_xmips.c.inc @@ -16,6 +16,12 @@ * this program. If not, see . */ =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; \ @@ -36,3 +42,11 @@ 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 94d37c10ae..56237fe610 100644 --- a/target/riscv/xmips.decode +++ b/target/riscv/xmips.decode @@ -13,11 +13,15 @@ %rs2 20:5 %rs1 15:5 %rd 7:5 +%imm_9 20:9 +%imm_hint 7:5 =20 # Argument sets =20 # Formats +@r1_pref ... ......... ..... ... ..... ....... %imm_9 %rs1 %imm_hint @r4 ..... .. ..... ..... ... ..... ....... %rs3 %rs2 %rs1 %rd =20 # *** RV64 MIPS Extension *** ccmov .....11 ..... ..... 011 ..... 0001011 @r4 +pref 000 ......... ..... 000 ..... 0001011 @r1_pref --=20 2.34.1