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Fri, 14 Feb 2025 17:37:47 +0000 From: Aleksandar Rakic To: "qemu-devel@nongnu.org" CC: "cfu@mips.com" , Djordje Todorovic , "arikalo@gmail.com" , "philmd@linaro.org" , "peter.maydell@linaro.org" , Aleksandar Rakic Subject: [PATCH v4 3/3] target/mips: Enable MSA ASE using a CLI flag Thread-Topic: [PATCH v4 3/3] target/mips: Enable MSA ASE using a CLI flag Thread-Index: AQHbfwcpy+xBSuMOjkuTAxsblrR2yQ== Date: Fri, 14 Feb 2025 17:37:47 +0000 Message-ID: <20250214173702.2308488-5-aleksandar.rakic@htecgroup.com> References: <20250214173702.2308488-1-aleksandar.rakic@htecgroup.com> In-Reply-To: <20250214173702.2308488-1-aleksandar.rakic@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; x-ms-publictraffictype: Email x-ms-traffictypediagnostic: PA4PR09MB4864:EE_|PR3PR09MB4329:EE_ x-ms-office365-filtering-correlation-id: 67706647-4f3d-452a-e64b-08dd4d1e4c2a x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; 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envelope-from=aleksandar.rakic@htecgroup.com; helo=EUR03-AM7-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, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Aleksandar Rakic Enable MSA ASE using a CLI flag -cpu ,msa=on. Signed-off-by: Aleksandar Rakic --- target/mips/cpu.c | 16 ++++++++++++++++ target/mips/cpu.h | 1 + target/mips/internal.h | 2 +- 3 files changed, 18 insertions(+), 1 deletion(-) diff --git a/target/mips/cpu.c b/target/mips/cpu.c index d0a43b6d5c..8e12d303de 100644 --- a/target/mips/cpu.c +++ b/target/mips/cpu.c @@ -494,8 +494,24 @@ static void mips_cpu_realizefn(DeviceState *dev, Error **errp) mcc->parent_realize(dev, errp); } +static bool mips_get_msa_on(Object *obj, Error **errp) +{ + MIPSCPU *cpu = MIPS_CPU(obj); + CPUMIPSState *env = &cpu->env; + return env->msa_on; +} + +static void mips_set_msa_on(Object *obj, bool value, Error **errp) +{ + MIPSCPU *cpu = MIPS_CPU(obj); + CPUMIPSState *env = &cpu->env; + env->msa_on = value; +} + static void mips_cpu_initfn(Object *obj) { + object_property_add_bool(obj, "msa", mips_get_msa_on, mips_set_msa_on); + object_property_set_bool(obj, "msa", false, NULL); MIPSCPU *cpu = MIPS_CPU(obj); CPUMIPSState *env = &cpu->env; MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(obj); diff --git a/target/mips/cpu.h b/target/mips/cpu.h index f6877ece8b..3e636535c6 100644 --- a/target/mips/cpu.h +++ b/target/mips/cpu.h @@ -1191,6 +1191,7 @@ typedef struct CPUArchState { QEMUTimer *timer; /* Internal timer */ Clock *count_clock; /* CP0_Count clock */ target_ulong exception_base; /* ExceptionBase input to the core */ + bool msa_on; /* Enable MSA using a CLI flag -cpu ...,msa=on/off */ } CPUMIPSState; /** diff --git a/target/mips/internal.h b/target/mips/internal.h index 91c786cff8..bbe2acffe2 100644 --- a/target/mips/internal.h +++ b/target/mips/internal.h @@ -399,7 +399,7 @@ static inline void compute_hflags(CPUMIPSState *env) } } if (ase_msa_available(env)) { - if (env->CP0_Config5 & (1 << CP0C5_MSAEn)) { + if ((env->CP0_Config5 & (1 << CP0C5_MSAEn)) || (env->msa_on)) { env->hflags |= MIPS_HFLAG_MSA; } }