Message ID | 20210112093950.17530-6-frank.chang@sifive.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id h16sm2865664pgd.62.2021.01.12.01.40.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Jan 2021 01:40:17 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v6 05/72] target/riscv: rvv-1.0: introduce writable misa.v field Date: Tue, 12 Jan 2021 17:38:39 +0800 Message-Id: <20210112093950.17530-6-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210112093950.17530-1-frank.chang@sifive.com> References: <20210112093950.17530-1-frank.chang@sifive.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::1029; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x1029.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: 2.1.23 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Cc: Frank Chang <frank.chang@sifive.com>, Alistair Francis <Alistair.Francis@wdc.com>, Palmer Dabbelt <palmer@dabbelt.com>, Sagar Karandikar <sagark@eecs.berkeley.edu>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org> |
Series |
support vector extension v1.0
|
expand
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On Tue, Jan 12, 2021 at 1:42 AM <frank.chang@sifive.com> wrote: > > From: Frank Chang <frank.chang@sifive.com> > > Implementations may have a writable misa.v field. Analogous to the way > in which the floating-point unit is handled, the mstatus.vs field may > exist even if misa.v is clear. > > Signed-off-by: Frank Chang <frank.chang@sifive.com> > Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Alistair > --- > target/riscv/csr.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/target/riscv/csr.c b/target/riscv/csr.c > index a70a78386da..c8b1e4954ec 100644 > --- a/target/riscv/csr.c > +++ b/target/riscv/csr.c > @@ -579,7 +579,7 @@ static int write_misa(CPURISCVState *env, int csrno, target_ulong val) > val &= env->misa_mask; > > /* Mask extensions that are not supported by QEMU */ > - val &= (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU); > + val &= (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU | RVV); > > /* 'D' depends on 'F', so clear 'D' if 'F' is not present */ > if ((val & RVD) && !(val & RVF)) { > -- > 2.17.1 > >
diff --git a/target/riscv/csr.c b/target/riscv/csr.c index a70a78386da..c8b1e4954ec 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -579,7 +579,7 @@ static int write_misa(CPURISCVState *env, int csrno, target_ulong val) val &= env->misa_mask; /* Mask extensions that are not supported by QEMU */ - val &= (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU); + val &= (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU | RVV); /* 'D' depends on 'F', so clear 'D' if 'F' is not present */ if ((val & RVD) && !(val & RVF)) {