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Fri, 04 Jun 2021 10:12:44 -0700 (PDT) Received: from zen.linaroharston ([51.148.130.216]) by smtp.gmail.com with ESMTPSA id m132sm6351030wmf.10.2021.06.04.10.12.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Jun 2021 10:12:38 -0700 (PDT) Received: from zen.lan (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id CAC8E1FFE6; Fri, 4 Jun 2021 16:53:21 +0100 (BST) From: =?utf-8?q?Alex_Benn=C3=A9e?= To: qemu-devel@nongnu.org Subject: [PATCH v16 74/99] target/arm: cpu-sve: make cpu_sve_finalize_features return bool Date: Fri, 4 Jun 2021 16:52:47 +0100 Message-Id: <20210604155312.15902-75-alex.bennee@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210604155312.15902-1-alex.bennee@linaro.org> References: <20210604155312.15902-1-alex.bennee@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::429; envelope-from=alex.bennee@linaro.org; helo=mail-wr1-x429.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=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , qemu-arm@nongnu.org, =?utf-8?q?Alex_Benn=C3=A9e?= , Claudio Fontana Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Claudio Fontana return false on error, true on success. Signed-off-by: Claudio Fontana Signed-off-by: Alex Bennée Reviewed-by: Richard Henderson --- target/arm/cpu-sve.h | 2 +- target/arm/cpu-sve.c | 17 +++++++++-------- target/arm/cpu.c | 3 +-- 3 files changed, 11 insertions(+), 11 deletions(-) diff --git a/target/arm/cpu-sve.h b/target/arm/cpu-sve.h index ece36d2a0c..6ab74b1d8f 100644 --- a/target/arm/cpu-sve.h +++ b/target/arm/cpu-sve.h @@ -26,7 +26,7 @@ #include "cpu.h" /* called by arm_cpu_finalize_features in realizefn */ -void cpu_sve_finalize_features(ARMCPU *cpu, Error **errp); +bool cpu_sve_finalize_features(ARMCPU *cpu, Error **errp); /* add the CPU SVE properties */ void cpu_sve_add_props(Object *obj); diff --git a/target/arm/cpu-sve.c b/target/arm/cpu-sve.c index 5190e4a639..24bffbba8b 100644 --- a/target/arm/cpu-sve.c +++ b/target/arm/cpu-sve.c @@ -49,7 +49,7 @@ static bool apply_max_vq(unsigned long *sve_vq_map, unsigned long *sve_vq_init, return true; } -void cpu_sve_finalize_features(ARMCPU *cpu, Error **errp) +bool cpu_sve_finalize_features(ARMCPU *cpu, Error **errp) { /* * If any vector lengths are explicitly enabled with sve properties, @@ -86,7 +86,7 @@ void cpu_sve_finalize_features(ARMCPU *cpu, Error **errp) "length, sve-max-vq=%d (%d bits)\n", max_vq * 128, cpu->sve_max_vq, cpu->sve_max_vq * 128); - return; + return false; } if (kvm_enabled()) { kvm_sve_enable_lens(cpu->sve_vq_map, cpu->sve_vq_init, max_vq, @@ -98,7 +98,7 @@ void cpu_sve_finalize_features(ARMCPU *cpu, Error **errp) /* No explicit bits enabled, and no implicit bits from sve-max-vq. */ if (!cpu_isar_feature(aa64_sve, cpu)) { /* SVE is disabled and so are all vector lengths. Good. */ - return; + return true; } if (kvm_enabled()) { max_vq = kvm_sve_disable_lens(cpu->sve_vq_map, cpu->sve_vq_init, @@ -108,7 +108,7 @@ void cpu_sve_finalize_features(ARMCPU *cpu, Error **errp) errp); } if (!max_vq) { - return; + return false; } max_vq = find_last_bit(cpu->sve_vq_map, max_vq) + 1; } @@ -122,7 +122,7 @@ void cpu_sve_finalize_features(ARMCPU *cpu, Error **errp) max_vq = cpu->sve_max_vq; if (!apply_max_vq(cpu->sve_vq_map, cpu->sve_vq_init, max_vq, errp)) { - return; + return false; } } /* @@ -136,11 +136,11 @@ void cpu_sve_finalize_features(ARMCPU *cpu, Error **errp) if (kvm_enabled()) { if (!kvm_sve_validate_lens(cpu->sve_vq_map, max_vq, kvm_supported, errp, cpu->sve_max_vq)) { - return; + return false; } } else if (tcg_enabled()) { if (!tcg_sve_validate_lens(cpu->sve_vq_map, max_vq, errp)) { - return; + return false; } } @@ -153,11 +153,12 @@ void cpu_sve_finalize_features(ARMCPU *cpu, Error **errp) error_append_hint(errp, "SVE must be enabled to enable vector " "lengths.\n"); error_append_hint(errp, "Add sve=on to the CPU property list.\n"); - return; + return false; } /* From now on sve_max_vq is the actual maximum supported length. */ cpu->sve_max_vq = max_vq; + return true; } static void get_prop_max_vq(Object *obj, Visitor *v, const char *name, diff --git a/target/arm/cpu.c b/target/arm/cpu.c index e4ad92ffec..0b20faaca0 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -821,8 +821,7 @@ void arm_cpu_finalize_features(ARMCPU *cpu, Error **errp) #ifdef TARGET_AARCH64 if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { - cpu_sve_finalize_features(cpu, &local_err); - if (local_err != NULL) { + if (!cpu_sve_finalize_features(cpu, &local_err)) { error_propagate(errp, local_err); return; }