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Wed, 02 Jul 2025 05:34:56 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, peter.maydell@linaro.org Subject: [PATCH v3 35/97] target/arm: Implement SME2 SVDOT, UVDOT, SUVDOT, USVDOT Date: Wed, 2 Jul 2025 06:33:08 -0600 Message-ID: <20250702123410.761208-36-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::32; envelope-from=richard.henderson@linaro.org; helo=mail-oa1-x32.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: 2.1.29 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: 1751463226482116600 Content-Type: text/plain; charset="utf-8" Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/tcg/helper-sme.h | 11 +++++++++ target/arm/tcg/sme_helper.c | 42 ++++++++++++++++++++++++++++++++++ target/arm/tcg/translate-sme.c | 23 +++++++++++++++++++ target/arm/tcg/sme.decode | 11 +++++++++ 4 files changed, 87 insertions(+) diff --git a/target/arm/tcg/helper-sme.h b/target/arm/tcg/helper-sme.h index 8f5a1b3c90..464877516b 100644 --- a/target/arm/tcg/helper-sme.h +++ b/target/arm/tcg/helper-sme.h @@ -180,3 +180,14 @@ DEF_HELPER_FLAGS_6(sme2_fdot_idx_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, env, i32) DEF_HELPER_FLAGS_6(sme2_fvdot_idx_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, env, i32) + +DEF_HELPER_FLAGS_4(sme2_svdot_idx_4b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr= , i32) +DEF_HELPER_FLAGS_4(sme2_uvdot_idx_4b, TCG_CALL_NO_RWG, void, ptr, ptr, ptr= , i32) +DEF_HELPER_FLAGS_4(sme2_suvdot_idx_4b, TCG_CALL_NO_RWG, void, ptr, ptr, pt= r, i32) +DEF_HELPER_FLAGS_4(sme2_usvdot_idx_4b, TCG_CALL_NO_RWG, void, ptr, ptr, pt= r, i32) + +DEF_HELPER_FLAGS_4(sme2_svdot_idx_4h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr= , i32) +DEF_HELPER_FLAGS_4(sme2_uvdot_idx_4h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr= , i32) + +DEF_HELPER_FLAGS_4(sme2_svdot_idx_2h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr= , i32) +DEF_HELPER_FLAGS_4(sme2_uvdot_idx_2h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr= , i32) diff --git a/target/arm/tcg/sme_helper.c b/target/arm/tcg/sme_helper.c index 8b45865461..f5242d99be 100644 --- a/target/arm/tcg/sme_helper.c +++ b/target/arm/tcg/sme_helper.c @@ -1416,3 +1416,45 @@ DEF_IMOP_16x2_32(umopa2_s, uint16_t, uint16_t) =20 DEF_IMOPH(sme2, smopa2, s) DEF_IMOPH(sme2, umopa2, s) + +#define DO_VDOT_IDX(NAME, TYPED, TYPEN, TYPEM, HD, HN) \ +void HELPER(NAME)(void *vd, void *vn, void *vm, uint32_t desc) \ +{ \ + intptr_t svl =3D simd_oprsz(desc); = \ + intptr_t elements =3D svl / sizeof(TYPED); = \ + intptr_t eltperseg =3D 16 / sizeof(TYPED); = \ + intptr_t nreg =3D sizeof(TYPED) / sizeof(TYPEN); = \ + intptr_t vstride =3D (svl / nreg) * sizeof(ARMVectorReg); = \ + intptr_t zstride =3D sizeof(ARMVectorReg) / sizeof(TYPEN); = \ + intptr_t idx =3D extract32(desc, SIMD_DATA_SHIFT, 2); = \ + TYPEN *n =3D vn; = \ + TYPEM *m =3D vm; = \ + for (intptr_t r =3D 0; r < nreg; r++) { = \ + TYPED *d =3D vd + r * vstride; = \ + for (intptr_t seg =3D 0; seg < elements; seg +=3D eltperseg) { = \ + intptr_t s =3D seg + idx; = \ + for (intptr_t e =3D seg; e < seg + eltperseg; e++) { = \ + TYPED sum =3D d[HD(e)]; = \ + for (intptr_t i =3D 0; i < nreg; i++) { = \ + TYPED nn =3D n[i * zstride + HN(nreg * e + r)]; = \ + TYPED mm =3D m[HN(nreg * s + i)]; = \ + sum +=3D nn * mm; = \ + } \ + d[HD(e)] =3D sum; = \ + } \ + } \ + } \ +} + +DO_VDOT_IDX(sme2_svdot_idx_4b, int32_t, int8_t, int8_t, H4, H1) +DO_VDOT_IDX(sme2_uvdot_idx_4b, uint32_t, uint8_t, uint8_t, H4, H1) +DO_VDOT_IDX(sme2_suvdot_idx_4b, int32_t, int8_t, uint8_t, H4, H1) +DO_VDOT_IDX(sme2_usvdot_idx_4b, int32_t, uint8_t, int8_t, H4, H1) + +DO_VDOT_IDX(sme2_svdot_idx_4h, int64_t, int16_t, int16_t, H8, H2) +DO_VDOT_IDX(sme2_uvdot_idx_4h, uint64_t, uint16_t, uint16_t, H8, H2) + +DO_VDOT_IDX(sme2_svdot_idx_2h, int32_t, int16_t, int16_t, H4, H2) +DO_VDOT_IDX(sme2_uvdot_idx_2h, uint32_t, uint16_t, uint16_t, H4, H2) + +#undef DO_VDOT_IDX diff --git a/target/arm/tcg/translate-sme.c b/target/arm/tcg/translate-sme.c index 341f4495e9..b88f439ef9 100644 --- a/target/arm/tcg/translate-sme.c +++ b/target/arm/tcg/translate-sme.c @@ -1047,3 +1047,26 @@ TRANS_FEAT(SDOT_nx_4b, aa64_sme2, do_dot_nx, a, gen_= helper_gvec_sdot_idx_4b) TRANS_FEAT(UDOT_nx_4b, aa64_sme2, do_dot_nx, a, gen_helper_gvec_udot_idx_4= b) TRANS_FEAT(SDOT_nx_4h, aa64_sme2_i16i64, do_dot_nx, a, gen_helper_gvec_sdo= t_idx_4h) TRANS_FEAT(UDOT_nx_4h, aa64_sme2_i16i64, do_dot_nx, a, gen_helper_gvec_udo= t_idx_4h) + +static bool do_vdot_nx(DisasContext *s, arg_azx_n *a, gen_helper_gvec_3 *f= n) +{ + if (sme_smza_enabled_check(s)) { + int svl =3D streaming_vec_reg_size(s); + fn(get_zarray(s, a->rv, a->off, a->n, 0), + vec_full_reg_ptr(s, a->zn), + vec_full_reg_ptr(s, a->zm), + tcg_constant_i32(simd_desc(svl, svl, a->idx))); + } + return true; +} + +TRANS_FEAT(SVDOT_nx_2h, aa64_sme2, do_vdot_nx, a, gen_helper_sme2_svdot_id= x_2h) +TRANS_FEAT(SVDOT_nx_4b, aa64_sme2, do_vdot_nx, a, gen_helper_sme2_svdot_id= x_4b) +TRANS_FEAT(SVDOT_nx_4h, aa64_sme2, do_vdot_nx, a, gen_helper_sme2_svdot_id= x_4h) + +TRANS_FEAT(UVDOT_nx_2h, aa64_sme2, do_vdot_nx, a, gen_helper_sme2_uvdot_id= x_2h) +TRANS_FEAT(UVDOT_nx_4b, aa64_sme2, do_vdot_nx, a, gen_helper_sme2_uvdot_id= x_4b) +TRANS_FEAT(UVDOT_nx_4h, aa64_sme2, do_vdot_nx, a, gen_helper_sme2_uvdot_id= x_4h) + +TRANS_FEAT(SUVDOT_nx_4b, aa64_sme2, do_vdot_nx, a, gen_helper_sme2_suvdot_= idx_4b) +TRANS_FEAT(USVDOT_nx_4b, aa64_sme2, do_vdot_nx, a, gen_helper_sme2_usvdot_= idx_4b) diff --git a/target/arm/tcg/sme.decode b/target/arm/tcg/sme.decode index 338637decd..4146744a46 100644 --- a/target/arm/tcg/sme.decode +++ b/target/arm/tcg/sme.decode @@ -438,3 +438,14 @@ USDOT_nx 11000001 0101 .... 1 .. 1 .. ...01 01 = ... @azx_4x1_i2_o3 =20 SUDOT_nx 11000001 0101 .... 0 .. 1 .. ....1 11 ... @azx_2x1_i2_o3 SUDOT_nx 11000001 0101 .... 1 .. 1 .. ...01 11 ... @azx_4x1_i2_o3 + +SVDOT_nx_2h 11000001 0101 .... 0 .. 0 .. ....1 00 ... @azx_2x1_i2_o3 +SVDOT_nx_4b 11000001 0101 .... 1 .. 0 .. ...01 00 ... @azx_4x1_i2_o3 +SVDOT_nx_4h 11000001 1101 .... 1 .. 01 . ...00 01 ... @azx_4x1_i1_o3 + +UVDOT_nx_2h 11000001 0101 .... 0 .. 0 .. ....1 10 ... @azx_2x1_i2_o3 +UVDOT_nx_4b 11000001 0101 .... 1 .. 0 .. ...01 10 ... @azx_4x1_i2_o3 +UVDOT_nx_4h 11000001 1101 .... 1 .. 01 . ...00 11 ... @azx_4x1_i1_o3 + +SUVDOT_nx_4b 11000001 0101 .... 1 .. 0 .. ...01 11 ... @azx_4x1_i2_o3 +USVDOT_nx_4b 11000001 0101 .... 1 .. 0 .. ...01 01 ... @azx_4x1_i2_o3 --=20 2.43.0