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Thu, 25 Feb 2021 19:25:48 -0800 (PST) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v7 73/75] target/riscv: rvv-1.0: add vsetivli instruction Date: Fri, 26 Feb 2021 11:18:57 +0800 Message-Id: <20210226031902.23656-74-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210226031902.23656-1-frank.chang@sifive.com> References: <20210226031902.23656-1-frank.chang@sifive.com> 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::429; envelope-from=frank.chang@sifive.com; helo=mail-pf1-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: Sagar Karandikar , Frank Chang , Bastian Koppelmann , Richard Henderson , Alistair Francis , Palmer Dabbelt , LIU Zhiwei Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Frank Chang Signed-off-by: Frank Chang --- target/riscv/insn32.decode | 2 ++ target/riscv/insn_trans/trans_rvv.c.inc | 30 +++++++++++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 6fb85c83278..472626f1950 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -78,6 +78,7 @@ @r_vm_0 ...... . ..... ..... ... ..... ....... &rmrr vm=3D0 %rs2 %rs1 = %rd @r_wdvm ..... wd:1 vm:1 ..... ..... ... ..... ....... &rwdvm %rs2 %rs1 %rd @r2_zimm11 . zimm:11 ..... ... ..... ....... %rs1 %rd +@r2_zimm10 .. zimm:10 ..... ... ..... ....... %rs1 %rd @r2_s ....... ..... ..... ... ..... ....... %rs2 %rs1 =20 @hfence_gvma ....... ..... ..... ... ..... ....... %rs2 %rs1 @@ -647,4 +648,5 @@ vsext_vf4 010010 . ..... 00101 010 ..... 1010111 = @r2_vm vsext_vf8 010010 . ..... 00011 010 ..... 1010111 @r2_vm =20 vsetvli 0 ........... ..... 111 ..... 1010111 @r2_zimm11 +vsetivli 11 .......... ..... 111 ..... 1010111 @r2_zimm10 vsetvl 1000000 ..... ..... 111 ..... 1010111 @r diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_tr= ans/trans_rvv.c.inc index 120b32367e5..1e9f5148ccd 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -159,6 +159,29 @@ static bool do_vsetvl(DisasContext *ctx, int rd, int r= s1, TCGv s2) return true; } =20 +static bool do_vsetivli(DisasContext *ctx, int rd, TCGv s1, TCGv s2) +{ + TCGv dst; + + if (!require_rvv(ctx) || !has_ext(ctx, RVV)) { + return false; + } + + dst =3D tcg_temp_new(); + + gen_helper_vsetvl(dst, cpu_env, s1, s2); + gen_set_gpr(rd, dst); + mark_vs_dirty(ctx); + tcg_gen_movi_tl(cpu_pc, ctx->pc_succ_insn); + lookup_and_goto_ptr(ctx); + ctx->base.is_jmp =3D DISAS_NORETURN; + + tcg_temp_free(s1); + tcg_temp_free(s2); + tcg_temp_free(dst); + return true; +} + static bool trans_vsetvl(DisasContext *ctx, arg_vsetvl *a) { TCGv s2 =3D tcg_temp_new(); @@ -172,6 +195,13 @@ static bool trans_vsetvli(DisasContext *ctx, arg_vsetv= li *a) return do_vsetvl(ctx, a->rd, a->rs1, s2); } =20 +static bool trans_vsetivli(DisasContext *ctx, arg_vsetivli *a) +{ + TCGv s1 =3D tcg_const_tl(a->rs1); + TCGv s2 =3D tcg_const_tl(a->zimm); + return do_vsetivli(ctx, a->rd, s1, s2); +} + /* vector register offset from env */ static uint32_t vreg_ofs(DisasContext *s, int reg) { --=20 2.17.1