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Wed, 02 Jul 2025 05:38:03 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, peter.maydell@linaro.org Subject: [PATCH v3 41/97] target/arm: Implement SME2 ADD/SUB (array accumulator) Date: Wed, 2 Jul 2025 06:33:14 -0600 Message-ID: <20250702123410.761208-42-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250702123410.761208-1-richard.henderson@linaro.org> References: <20250702123410.761208-1-richard.henderson@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=2001:4860:4864:20::2d; envelope-from=richard.henderson@linaro.org; helo=mail-oa1-x2d.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: 1751464994658116600 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/arm/tcg/translate-sme.c | 28 ++++++++++++++++++++++++++++ target/arm/tcg/sme.decode | 12 ++++++++++++ 2 files changed, 40 insertions(+) diff --git a/target/arm/tcg/translate-sme.c b/target/arm/tcg/translate-sme.c index 664fdd86aa..4c3b9aa7d6 100644 --- a/target/arm/tcg/translate-sme.c +++ b/target/arm/tcg/translate-sme.c @@ -806,6 +806,34 @@ TRANS_FEAT(SUB_azz_nn_s, aa64_sme2, do_azz_nn, a, MO_3= 2, tcg_gen_gvec_sub_var) TRANS_FEAT(ADD_azz_nn_d, aa64_sme2_i16i64, do_azz_nn, a, MO_64, tcg_gen_gv= ec_add_var) TRANS_FEAT(SUB_azz_nn_d, aa64_sme2_i16i64, do_azz_nn, a, MO_64, tcg_gen_gv= ec_sub_var) =20 +/* Add/Sub each ZA[d*N] +=3D Z[m*N] */ +static bool do_aaz(DisasContext *s, arg_az_n *a, int esz, GVecGen3FnVar *f= n) +{ + TCGv_ptr t_za; + int svl, n; + + if (!sme_smza_enabled_check(s)) { + return true; + } + + n =3D a->n; + t_za =3D get_zarray(s, a->rv, a->off, n, 0); + svl =3D streaming_vec_reg_size(s); + + for (int i =3D 0; i < n; ++i) { + int o_za =3D (svl / n * sizeof(ARMVectorReg)) * i; + int o_zm =3D vec_full_reg_offset(s, a->zm + i); + + fn(esz, t_za, o_za, t_za, o_za, tcg_env, o_zm, svl, svl); + } + return true; +} + +TRANS_FEAT(ADD_aaz_s, aa64_sme2, do_aaz, a, MO_32, tcg_gen_gvec_add_var) +TRANS_FEAT(SUB_aaz_s, aa64_sme2, do_aaz, a, MO_32, tcg_gen_gvec_sub_var) +TRANS_FEAT(ADD_aaz_d, aa64_sme2_i16i64, do_aaz, a, MO_64, tcg_gen_gvec_add= _var) +TRANS_FEAT(SUB_aaz_d, aa64_sme2_i16i64, do_aaz, a, MO_64, tcg_gen_gvec_sub= _var) + /* * Expand array multi-vector single (n1), array multi-vector (nn), * and array multi-vector indexed (nx), for floating-point accumulate. diff --git a/target/arm/tcg/sme.decode b/target/arm/tcg/sme.decode index 0badc8f9fa..22e2a68b1b 100644 --- a/target/arm/tcg/sme.decode +++ b/target/arm/tcg/sme.decode @@ -708,3 +708,15 @@ BFMLS_nx 11000001 0001 .... 1 .. 1.. ...01 1 ..= .. @azx_4x1_i3_o3 FMLS_nx_h 11000001 0001 .... 1 .. 1.. ...00 1 .... @azx_4x1_i3_o3 FMLS_nx_s 11000001 0101 .... 1 .. 0.. ...00 10 ... @azx_4x1_i2_o3 FMLS_nx_d 11000001 1101 .... 1 .. 00. ...00 10 ... @azx_4x1_i1_o3 + +### SME2 Add / Sub array accumulators + +ADD_aaz_s 11000001 101 000000 .. 111 ....0 10 ... @az_2x2_o3 +ADD_aaz_s 11000001 101 000010 .. 111 ...00 10 ... @az_4x4_o3 +ADD_aaz_d 11000001 111 000000 .. 111 ....0 10 ... @az_2x2_o3 +ADD_aaz_d 11000001 111 000010 .. 111 ...00 10 ... @az_4x4_o3 + +SUB_aaz_s 11000001 101 000000 .. 111 ....0 11 ... @az_2x2_o3 +SUB_aaz_s 11000001 101 000010 .. 111 ...00 11 ... @az_4x4_o3 +SUB_aaz_d 11000001 111 000000 .. 111 ....0 11 ... @az_2x2_o3 +SUB_aaz_d 11000001 111 000010 .. 111 ...00 11 ... @az_4x4_o3 --=20 2.43.0