From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8382C433E0 for ; Fri, 12 Feb 2021 15:34:22 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 724C064E76 for ; Fri, 12 Feb 2021 15:34:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 724C064E76 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=c-sky.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:33434 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lAaSb-0000Lq-98 for qemu-devel@archiver.kernel.org; Fri, 12 Feb 2021 10:34:21 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:47142) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lAaLZ-0002rA-06; Fri, 12 Feb 2021 10:27:05 -0500 Received: from smtp2200-217.mail.aliyun.com ([121.197.200.217]:54613) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lAaLU-0005k6-Uw; Fri, 12 Feb 2021 10:27:03 -0500 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.07812156|-1; CH=green; DM=|CONTINUE|false|; DS=CONTINUE|ham_alarm|0.356781-0.000124308-0.643095; FP=0|0|0|0|0|-1|-1|-1; HT=ay29a033018047201; MF=zhiwei_liu@c-sky.com; NM=1; PH=DS; RN=6; RT=6; SR=0; TI=SMTPD_---.JYH3q19_1613143607; Received: from localhost.localdomain(mailfrom:zhiwei_liu@c-sky.com fp:SMTPD_---.JYH3q19_1613143607) by smtp.aliyun-inc.com(10.147.42.197); Fri, 12 Feb 2021 23:26:47 +0800 From: LIU Zhiwei To: qemu-devel@nongnu.org Subject: [PATCH 11/38] target/riscv: SIMD 8-bit Multiply Instructions Date: Fri, 12 Feb 2021 23:02:29 +0800 Message-Id: <20210212150256.885-12-zhiwei_liu@c-sky.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210212150256.885-1-zhiwei_liu@c-sky.com> References: <20210212150256.885-1-zhiwei_liu@c-sky.com> Received-SPF: none client-ip=121.197.200.217; envelope-from=zhiwei_liu@c-sky.com; helo=smtp2200-217.mail.aliyun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_NONE=0.001, UNPARSEABLE_RELAY=0.001 autolearn=ham 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: richard.henderson@linaro.org, LIU Zhiwei , qemu-riscv@nongnu.org, palmer@dabbelt.com, alistair23@gmail.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: LIU Zhiwei --- target/riscv/helper.h | 7 ++ target/riscv/insn32.decode | 7 ++ target/riscv/insn_trans/trans_rvp.c.inc | 8 +++ target/riscv/packed_helper.c | 93 +++++++++++++++++++++++++ 4 files changed, 115 insertions(+) diff --git a/target/riscv/helper.h b/target/riscv/helper.h index bc60712bd9..6bb601b436 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -1221,3 +1221,10 @@ DEF_HELPER_3(umul16, i64, env, tl, tl) DEF_HELPER_3(umulx16, i64, env, tl, tl) DEF_HELPER_3(khm16, tl, env, tl, tl) DEF_HELPER_3(khmx16, tl, env, tl, tl) + +DEF_HELPER_3(smul8, i64, env, tl, tl) +DEF_HELPER_3(smulx8, i64, env, tl, tl) +DEF_HELPER_3(umul8, i64, env, tl, tl) +DEF_HELPER_3(umulx8, i64, env, tl, tl) +DEF_HELPER_3(khm8, tl, env, tl, tl) +DEF_HELPER_3(khmx8, tl, env, tl, tl) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 38519a477c..9d165efba9 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -688,3 +688,10 @@ umul16 1011000 ..... ..... 000 ..... 1111111 @r umulx16 1011001 ..... ..... 000 ..... 1111111 @r khm16 1000011 ..... ..... 000 ..... 1111111 @r khmx16 1001011 ..... ..... 000 ..... 1111111 @r + +smul8 1010100 ..... ..... 000 ..... 1111111 @r +smulx8 1010101 ..... ..... 000 ..... 1111111 @r +umul8 1011100 ..... ..... 000 ..... 1111111 @r +umulx8 1011101 ..... ..... 000 ..... 1111111 @r +khm8 1000111 ..... ..... 000 ..... 1111111 @r +khmx8 1001111 ..... ..... 000 ..... 1111111 @r diff --git a/target/riscv/insn_trans/trans_rvp.c.inc b/target/riscv/insn_trans/trans_rvp.c.inc index 7e5bf9041d..336f3418b1 100644 --- a/target/riscv/insn_trans/trans_rvp.c.inc +++ b/target/riscv/insn_trans/trans_rvp.c.inc @@ -436,3 +436,11 @@ GEN_RVP_R_D64_OOL(umul16); GEN_RVP_R_D64_OOL(umulx16); GEN_RVP_R_OOL(khm16); GEN_RVP_R_OOL(khmx16); + +/* SIMD 8-bit Multiply Instructions */ +GEN_RVP_R_D64_OOL(smul8); +GEN_RVP_R_D64_OOL(smulx8); +GEN_RVP_R_D64_OOL(umul8); +GEN_RVP_R_D64_OOL(umulx8); +GEN_RVP_R_OOL(khm8); +GEN_RVP_R_OOL(khmx8); diff --git a/target/riscv/packed_helper.c b/target/riscv/packed_helper.c index 13fed2c4d1..56baefeb8e 100644 --- a/target/riscv/packed_helper.c +++ b/target/riscv/packed_helper.c @@ -827,3 +827,96 @@ static inline void do_khmx16(CPURISCVState *env, void *vd, void *va, } RVPR(khmx16, 2, 2); + +/* SIMD 8-bit Multiply Instructions */ +static inline void do_smul8(CPURISCVState *env, void *vd, void *va, void *vb) +{ + int16_t *d = vd; + int8_t *a = va, *b = vb; + d[H2(0)] = (int16_t)a[H1(0)] * b[H1(0)]; + d[H2(1)] = (int16_t)a[H1(1)] * b[H1(1)]; + d[H2(2)] = (int16_t)a[H1(2)] * b[H1(2)]; + d[H2(3)] = (int16_t)a[H1(3)] * b[H1(3)]; +} + +RVPR64(smul8); + +static inline void do_smulx8(CPURISCVState *env, void *vd, void *va, void *vb) +{ + int16_t *d = vd; + int8_t *a = va, *b = vb; + d[H2(0)] = (int16_t)a[H1(0)] * b[H1(1)]; + d[H2(1)] = (int16_t)a[H1(1)] * b[H1(0)]; + d[H2(2)] = (int16_t)a[H1(2)] * b[H1(3)]; + d[H2(3)] = (int16_t)a[H1(3)] * b[H1(2)]; +} + +RVPR64(smulx8); + +static inline void do_umul8(CPURISCVState *env, void *vd, void *va, void *vb) +{ + uint16_t *d = vd; + uint8_t *a = va, *b = vb; + d[H2(0)] = (uint16_t)a[H1(0)] * b[H1(0)]; + d[H2(1)] = (uint16_t)a[H1(1)] * b[H1(1)]; + d[H2(2)] = (uint16_t)a[H1(2)] * b[H1(2)]; + d[H2(3)] = (uint16_t)a[H1(3)] * b[H1(3)]; +} + +RVPR64(umul8); + +static inline void do_umulx8(CPURISCVState *env, void *vd, void *va, void *vb) +{ + uint16_t *d = vd; + uint8_t *a = va, *b = vb; + d[H2(0)] = (uint16_t)a[H1(0)] * b[H1(1)]; + d[H2(1)] = (uint16_t)a[H1(1)] * b[H1(0)]; + d[H2(2)] = (uint16_t)a[H1(2)] * b[H1(3)]; + d[H2(3)] = (uint16_t)a[H1(3)] * b[H1(2)]; +} + +RVPR64(umulx8); + +static inline void do_khm8(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int8_t *d = vd, *a = va, *b = vb; + + if (a[i] == INT8_MIN && b[i] == INT8_MIN) { + env->vxsat = 1; + d[i] = INT8_MAX; + } else { + d[i] = (int16_t)a[i] * b[i] >> 7; + } +} + +RVPR(khm8, 1, 1); + +static inline void do_khmx8(CPURISCVState *env, void *vd, void *va, + void *vb, uint8_t i) +{ + int8_t *d = vd, *a = va, *b = vb; + /* + * t[x] = ra.B[x] s* rb.B[y]; + * rt.B[x] = SAT.Q7(t[x] s>> 7); + * + * (RV32: (x,y)=(3,2),(2,3), + * (1,0),(0,1), + * (RV64: (x,y)=(7,6),(6,7),(5,4),(4,5), + * (3,2),(2,3),(1,0),(0,1)) + */ + if (a[H1(i)] == INT8_MIN && b[H1(i + 1)] == INT8_MIN) { + env->vxsat = 1; + d[H1(i)] = INT8_MAX; + } else { + d[H1(i)] = (int16_t)a[H1(i)] * b[H1(i + 1)] >> 7; + } + if (a[H1(i + 1)] == INT8_MIN && b[H1(i)] == INT8_MIN) { + env->vxsat = 1; + d[H1(i + 1)] = INT8_MAX; + } else { + d[H1(i + 1)] = (int16_t)a[H1(i + 1)] * b[H1(i)] >> 7; + } +} + +RVPR(khmx8, 2, 1); -- 2.17.1