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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::631; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x631.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, T_SCC_BODY_TEXT_LINE=-0.01 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" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1657294080472100001 Content-Type: text/plain; charset="utf-8" Signed-off-by: Richard Henderson --- target/arm/helper-sme.h | 2 ++ target/arm/sme.decode | 2 ++ target/arm/sme_helper.c | 56 ++++++++++++++++++++++++++++++++++++++ target/arm/translate-sme.c | 30 ++++++++++++++++++++ 4 files changed, 90 insertions(+) diff --git a/target/arm/helper-sme.h b/target/arm/helper-sme.h index f50d0fe1d6..1d68fb8c74 100644 --- a/target/arm/helper-sme.h +++ b/target/arm/helper-sme.h @@ -125,3 +125,5 @@ DEF_HELPER_FLAGS_7(sme_fmopa_s, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_7(sme_fmopa_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, ptr, ptr, i32) +DEF_HELPER_FLAGS_6(sme_bfmopa, TCG_CALL_NO_RWG, + void, ptr, ptr, ptr, ptr, ptr, i32) diff --git a/target/arm/sme.decode b/target/arm/sme.decode index ba4774d174..afd9c0dffd 100644 --- a/target/arm/sme.decode +++ b/target/arm/sme.decode @@ -73,3 +73,5 @@ ADDVA_d 11000000 11 01000 1 ... ... ..... 00 ... = @adda_64 =20 FMOPA_s 10000000 100 ..... ... ... ..... . 00 .. @op_32 FMOPA_d 10000000 110 ..... ... ... ..... . 0 ... @op_64 + +BFMOPA 10000001 100 ..... ... ... ..... . 00 .. @op_32 diff --git a/target/arm/sme_helper.c b/target/arm/sme_helper.c index 7dc76b6a1c..690a53eee2 100644 --- a/target/arm/sme_helper.c +++ b/target/arm/sme_helper.c @@ -987,3 +987,59 @@ void HELPER(sme_fmopa_d)(void *vza, void *vzn, void *v= zm, void *vpn, } } } + +/* + * Alter PAIR as needed for controlling predicates being false, + * and for NEG on an enabled row element. + */ +static inline uint32_t f16mop_adj_pair(uint32_t pair, uint32_t pg, uint32_= t neg) +{ + /* + * The pseudocode uses a conditional negate after the conditional zero. + * It is simpler here to unconditionally negate before conditional zer= o. + */ + pair ^=3D neg; + if (!(pg & 1)) { + pair &=3D 0xffff0000u; + } + if (!(pg & 4)) { + pair &=3D 0x0000ffffu; + } + return pair; +} + +void HELPER(sme_bfmopa)(void *vza, void *vzn, void *vzm, void *vpn, + void *vpm, uint32_t desc) +{ + intptr_t row, col, oprsz =3D simd_maxsz(desc); + uint32_t neg =3D simd_data(desc) * 0x80008000u; + uint16_t *pn =3D vpn, *pm =3D vpm; + + for (row =3D 0; row < oprsz; ) { + uint16_t prow =3D pn[H2(row >> 4)]; + do { + void *vza_row =3D vza + tile_vslice_offset(row); + uint32_t n =3D *(uint32_t *)(vzn + H1_4(row)); + + n =3D f16mop_adj_pair(n, prow, neg); + + for (col =3D 0; col < oprsz; ) { + uint16_t pcol =3D pm[H2(col >> 4)]; + do { + if (prow & pcol & 0b0101) { + uint32_t *a =3D vza_row + H1_4(col); + uint32_t m =3D *(uint32_t *)(vzm + H1_4(col)); + + m =3D f16mop_adj_pair(m, pcol, 0); + *a =3D bfdotadd(*a, n, m); + + col +=3D 4; + pcol >>=3D 4; + } + } while (col & 15); + } + row +=3D 4; + prow >>=3D 4; + } while (row & 15); + } +} diff --git a/target/arm/translate-sme.c b/target/arm/translate-sme.c index fa8f343a7d..ecb7583c55 100644 --- a/target/arm/translate-sme.c +++ b/target/arm/translate-sme.c @@ -299,6 +299,33 @@ TRANS_FEAT(ADDVA_s, aa64_sme, do_adda, a, MO_32, gen_h= elper_sme_addva_s) TRANS_FEAT(ADDHA_d, aa64_sme_i16i64, do_adda, a, MO_64, gen_helper_sme_add= ha_d) TRANS_FEAT(ADDVA_d, aa64_sme_i16i64, do_adda, a, MO_64, gen_helper_sme_add= va_d) =20 +static bool do_outprod(DisasContext *s, arg_op *a, MemOp esz, + gen_helper_gvec_5 *fn) +{ + int svl =3D streaming_vec_reg_size(s); + uint32_t desc =3D simd_desc(svl, svl, a->sub); + TCGv_ptr za, zn, zm, pn, pm; + + if (!sme_smza_enabled_check(s)) { + return true; + } + + /* Sum XZR+zad to find ZAd. */ + za =3D get_tile_rowcol(s, esz, 31, a->zad, false); + zn =3D vec_full_reg_ptr(s, a->zn); + zm =3D vec_full_reg_ptr(s, a->zm); + pn =3D pred_full_reg_ptr(s, a->pn); + pm =3D pred_full_reg_ptr(s, a->pm); + + fn(za, zn, zm, pn, pm, tcg_constant_i32(desc)); + + tcg_temp_free_ptr(za); + tcg_temp_free_ptr(zn); + tcg_temp_free_ptr(pn); + tcg_temp_free_ptr(pm); + return true; +} + static bool do_outprod_fpst(DisasContext *s, arg_op *a, MemOp esz, gen_helper_gvec_5_ptr *fn) { @@ -330,3 +357,6 @@ static bool do_outprod_fpst(DisasContext *s, arg_op *a,= MemOp esz, =20 TRANS_FEAT(FMOPA_s, aa64_sme, do_outprod_fpst, a, MO_32, gen_helper_sme_fm= opa_s) TRANS_FEAT(FMOPA_d, aa64_sme_f64f64, do_outprod_fpst, a, MO_64, gen_helper= _sme_fmopa_d) + +/* TODO: FEAT_EBF16 */ +TRANS_FEAT(BFMOPA, aa64_sme, do_outprod, a, MO_32, gen_helper_sme_bfmopa) --=20 2.34.1