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Fri, 04 Jul 2025 09:26:20 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 081/119] target/arm: Implement SME2p1 Multiple Zero Date: Fri, 4 Jul 2025 17:24:21 +0100 Message-ID: <20250704162501.249138-82-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250704162501.249138-1-peter.maydell@linaro.org> References: <20250704162501.249138-1-peter.maydell@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::42a; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x42a.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: 1751646981987116600 Content-Type: text/plain; charset="utf-8" From: Richard Henderson Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20250704142112.1018902-70-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/tcg/sme.decode | 23 +++++++++++++++++++++++ target/arm/tcg/translate-sme.c | 20 ++++++++++++++++++++ 2 files changed, 43 insertions(+) diff --git a/target/arm/tcg/sme.decode b/target/arm/tcg/sme.decode index 47adcb5a154..c4b85a36d0c 100644 --- a/target/arm/tcg/sme.decode +++ b/target/arm/tcg/sme.decode @@ -877,3 +877,26 @@ UCLAMP 11000001 esz:2 1 zm:5 110001 zn:5 ....= 1 \ &zzz_en zd=3D%zd_ax2 n=3D2 UCLAMP 11000001 esz:2 1 zm:5 110011 zn:5 ...0 1 \ &zzz_en zd=3D%zd_ax4 n=3D4 + +### SME Multiple Zero + +&zero_za rv off ngrp nvec + +ZERO_za 11000000 000011 000 .. 0000000000 off:3 \ + &zero_za ngrp=3D2 nvec=3D1 rv=3D%mova_rv +ZERO_za 11000000 000011 100 .. 0000000000 off:3 \ + &zero_za ngrp=3D4 nvec=3D1 rv=3D%mova_rv + +ZERO_za 11000000 000011 001 .. 0000000000 ... \ + &zero_za ngrp=3D1 nvec=3D2 rv=3D%mova_rv off=3D%off3_x2 +ZERO_za 11000000 000011 010 .. 0000000000 0.. \ + &zero_za ngrp=3D2 nvec=3D2 rv=3D%mova_rv off=3D%off2_x2 +ZERO_za 11000000 000011 011 .. 0000000000 0.. \ + &zero_za ngrp=3D4 nvec=3D2 rv=3D%mova_rv off=3D%off2_x2 + +ZERO_za 11000000 000011 101 .. 0000000000 0.. \ + &zero_za ngrp=3D1 nvec=3D4 rv=3D%mova_rv off=3D%off2_x4 +ZERO_za 11000000 000011 110 .. 0000000000 00. \ + &zero_za ngrp=3D2 nvec=3D4 rv=3D%mova_rv off=3D%off1_x4 +ZERO_za 11000000 000011 111 .. 0000000000 00. \ + &zero_za ngrp=3D4 nvec=3D4 rv=3D%mova_rv off=3D%off1_x4 diff --git a/target/arm/tcg/translate-sme.c b/target/arm/tcg/translate-sme.c index 99e4056316a..b6316ac716c 100644 --- a/target/arm/tcg/translate-sme.c +++ b/target/arm/tcg/translate-sme.c @@ -173,6 +173,26 @@ static bool trans_ZERO_zt0(DisasContext *s, arg_ZERO_z= t0 *a) return true; } =20 +static bool trans_ZERO_za(DisasContext *s, arg_ZERO_za *a) +{ + if (!dc_isar_feature(aa64_sme2p1, s)) { + return false; + } + if (sme_smza_enabled_check(s)) { + int svl =3D streaming_vec_reg_size(s); + int vstride =3D svl / a->ngrp; + TCGv_ptr t_za =3D get_zarray(s, a->rv, a->off, a->ngrp, a->nvec); + + for (int r =3D 0; r < a->ngrp; ++r) { + for (int i =3D 0; i < a->nvec; ++i) { + int o_za =3D (r * vstride + i) * sizeof(ARMVectorReg); + tcg_gen_gvec_dup_imm_var(MO_64, t_za, o_za, svl, svl, 0); + } + } + } + return true; +} + static bool do_mova_tile(DisasContext *s, arg_mova_p *a, bool to_vec) { static gen_helper_gvec_4 * const h_fns[5] =3D { --=20 2.43.0