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Tue, 22 Aug 2023 00:14:33 -0700 (PDT) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org, Song Gao Cc: Xiaojuan Yang , Huacai Chen , Jiajie Chen , Richard Henderson Subject: [PATCH RESEND v5 04/19] target/loongarch: Add LA64 & VA32 to DisasContext Date: Tue, 22 Aug 2023 09:13:50 +0200 Message-ID: <20230822071405.35386-5-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230822071405.35386-1-philmd@linaro.org> References: <20230822071405.35386-1-philmd@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::42d; envelope-from=philmd@linaro.org; helo=mail-wr1-x42d.google.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_NONE=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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1692688566867100011 Content-Type: text/plain; charset="utf-8" From: Jiajie Chen Add LA64 and VA32(32-bit Virtual Address) to DisasContext to allow the translator to reject doubleword instructions in LA32 mode for example. Signed-off-by: Jiajie Chen Reviewed-by: Richard Henderson Signed-off-by: Song Gao Message-ID: <20230822032724.1353391-5-gaosong@loongson.cn> --- target/loongarch/cpu.h | 13 +++++++++++++ target/loongarch/translate.h | 2 ++ target/loongarch/translate.c | 3 +++ 3 files changed, 18 insertions(+) diff --git a/target/loongarch/cpu.h b/target/loongarch/cpu.h index b8af491041..72109095e4 100644 --- a/target/loongarch/cpu.h +++ b/target/loongarch/cpu.h @@ -432,6 +432,17 @@ static inline bool is_la64(CPULoongArchState *env) return FIELD_EX32(env->cpucfg[1], CPUCFG1, ARCH) =3D=3D CPUCFG1_ARCH_L= A64; } =20 +static inline bool is_va32(CPULoongArchState *env) +{ + /* VA32 if !LA64 or VA32L[1-3] */ + bool va32 =3D !is_la64(env); + uint64_t plv =3D FIELD_EX64(env->CSR_CRMD, CSR_CRMD, PLV); + if (plv >=3D 1 && (FIELD_EX64(env->CSR_MISC, CSR_MISC, VA32) & (1 << p= lv))) { + va32 =3D true; + } + return va32; +} + /* * LoongArch CPUs hardware flags. */ @@ -439,6 +450,7 @@ static inline bool is_la64(CPULoongArchState *env) #define HW_FLAGS_CRMD_PG R_CSR_CRMD_PG_MASK /* 0x10 */ #define HW_FLAGS_EUEN_FPE 0x04 #define HW_FLAGS_EUEN_SXE 0x08 +#define HW_FLAGS_VA32 0x20 =20 static inline void cpu_get_tb_cpu_state(CPULoongArchState *env, vaddr *pc, uint64_t *cs_base, uint32_t *flags) @@ -448,6 +460,7 @@ static inline void cpu_get_tb_cpu_state(CPULoongArchSta= te *env, vaddr *pc, *flags =3D env->CSR_CRMD & (R_CSR_CRMD_PLV_MASK | R_CSR_CRMD_PG_MASK); *flags |=3D FIELD_EX64(env->CSR_EUEN, CSR_EUEN, FPE) * HW_FLAGS_EUEN_F= PE; *flags |=3D FIELD_EX64(env->CSR_EUEN, CSR_EUEN, SXE) * HW_FLAGS_EUEN_S= XE; + *flags |=3D is_va32(env) * HW_FLAGS_VA32; } =20 void loongarch_cpu_list(void); diff --git a/target/loongarch/translate.h b/target/loongarch/translate.h index 7f60090580..b6fa5df82d 100644 --- a/target/loongarch/translate.h +++ b/target/loongarch/translate.h @@ -33,6 +33,8 @@ typedef struct DisasContext { uint16_t plv; int vl; /* Vector length */ TCGv zero; + bool la64; /* LoongArch64 mode */ + bool va32; /* 32-bit virtual address */ } DisasContext; =20 void generate_exception(DisasContext *ctx, int excp); diff --git a/target/loongarch/translate.c b/target/loongarch/translate.c index 3146a2d4ac..ac847745df 100644 --- a/target/loongarch/translate.c +++ b/target/loongarch/translate.c @@ -119,6 +119,9 @@ static void loongarch_tr_init_disas_context(DisasContex= tBase *dcbase, ctx->vl =3D LSX_LEN; } =20 + ctx->la64 =3D is_la64(env); + ctx->va32 =3D (ctx->base.tb->flags & HW_FLAGS_VA32) !=3D 0; + ctx->zero =3D tcg_constant_tl(0); } =20 --=20 2.41.0