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Tue, 16 Jan 2024 12:59:06 -0800 (PST) From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Cc: qemu-riscv@nongnu.org, alistair.francis@wdc.com, bmeng@tinylab.org, liwei1518@gmail.com, zhiwei_liu@linux.alibaba.com, palmer@rivosinc.com, richard.henderson@linaro.org, max.chou@sifive.com, Daniel Henrique Barboza Subject: [PATCH v3 13/13] target/riscv/cpu.c: remove cpu->cfg.vlen Date: Tue, 16 Jan 2024 17:58:17 -0300 Message-ID: <20240116205817.344178-14-dbarboza@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240116205817.344178-1-dbarboza@ventanamicro.com> References: <20240116205817.344178-1-dbarboza@ventanamicro.com> 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=2607:f8b0:4864:20::62d; envelope-from=dbarboza@ventanamicro.com; helo=mail-pl1-x62d.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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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 @ventanamicro.com) X-ZM-MESSAGEID: 1705438815107100001 Content-Type: text/plain; charset="utf-8" There is no need to keep both 'vlen' and 'vlenb'. All existing code that requires 'vlen' is retrieving it via 'vlenb << 3'. Signed-off-by: Daniel Henrique Barboza Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/cpu.c | 8 +++----- target/riscv/cpu_cfg.h | 1 - target/riscv/tcg/tcg-cpu.c | 4 +++- 3 files changed, 6 insertions(+), 7 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index f4261d2ffc..7b3f69d3fb 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -1313,7 +1313,6 @@ static void riscv_cpu_init(Object *obj) =20 /* Default values for non-bool cpu properties */ cpu->cfg.pmu_mask =3D MAKE_64BIT_MASK(3, 16); - cpu->cfg.vlen =3D 128; cpu->cfg.vlenb =3D 128 >> 3; cpu->cfg.elen =3D 64; cpu->env.vext_ver =3D VEXT_VERSION_1_00_0; @@ -1802,22 +1801,21 @@ static void prop_vlen_set(Object *obj, Visitor *v, = const char *name, return; } =20 - if (value !=3D cpu->cfg.vlen && riscv_cpu_is_vendor(obj)) { + if (value !=3D cpu->cfg.vlenb && riscv_cpu_is_vendor(obj)) { cpu_set_prop_err(cpu, name, errp); error_append_hint(errp, "Current '%s' val: %u\n", - name, cpu->cfg.vlen); + name, cpu->cfg.vlenb << 3); return; } =20 cpu_option_add_user_setting(name, value); - cpu->cfg.vlen =3D value; cpu->cfg.vlenb =3D value >> 3; } =20 static void prop_vlen_get(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) { - uint16_t value =3D RISCV_CPU(obj)->cfg.vlen; + uint16_t value =3D RISCV_CPU(obj)->cfg.vlenb << 3; =20 visit_type_uint16(v, name, &value, errp); } diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index 50479dd72f..e241922f89 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -139,7 +139,6 @@ struct RISCVCPUConfig { bool ext_XVentanaCondOps; =20 uint32_t pmu_mask; - uint16_t vlen; uint16_t vlenb; uint16_t elen; uint16_t cbom_blocksize; diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c index daff0b8f60..667421b0b7 100644 --- a/target/riscv/tcg/tcg-cpu.c +++ b/target/riscv/tcg/tcg-cpu.c @@ -298,7 +298,9 @@ static void riscv_cpu_validate_misa_mxl(RISCVCPU *cpu, = Error **errp) static void riscv_cpu_validate_v(CPURISCVState *env, RISCVCPUConfig *cfg, Error **errp) { - if (cfg->vlen > RV_VLEN_MAX || cfg->vlen < 128) { + uint32_t vlen =3D cfg->vlenb << 3; + + if (vlen > RV_VLEN_MAX || vlen < 128) { error_setg(errp, "Vector extension implementation only supports VLEN " "in the range [128, %d]", RV_VLEN_MAX); --=20 2.43.0