From patchwork Thu Jun 24 10:55:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: LIU Zhiwei X-Patchwork-Id: 12341991 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 9EA99C48BDF for ; Thu, 24 Jun 2021 11:50:33 +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 55A35613C5 for ; Thu, 24 Jun 2021 11:50:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 55A35613C5 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]:41492 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lwNsO-0006ht-9z for qemu-devel@archiver.kernel.org; Thu, 24 Jun 2021 07:50:32 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45558) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lwNIO-0005qP-Vk; Thu, 24 Jun 2021 07:13:21 -0400 Received: from out29-196.mail.aliyun.com ([115.124.29.196]:56705) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lwNIM-00069j-10; Thu, 24 Jun 2021 07:13:20 -0400 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.1012007|-1; CH=blue; DM=|OVERLOAD|false|; DS=CONTINUE|ham_system_inform|0.55777-0.0156208-0.426609; FP=0|0|0|0|0|-1|-1|-1; HT=ay29a033018047209; MF=zhiwei_liu@c-sky.com; NM=1; PH=DS; RN=6; RT=6; SR=0; TI=SMTPD_---.KXKnvFF_1624533192; Received: from roman-VirtualBox.hz.ali.com(mailfrom:zhiwei_liu@c-sky.com fp:SMTPD_---.KXKnvFF_1624533192) by smtp.aliyun-inc.com(10.147.44.118); Thu, 24 Jun 2021 19:13:13 +0800 From: LIU Zhiwei To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v3 33/37] target/riscv: RV64 Only 32-bit Multiply & Add Instructions Date: Thu, 24 Jun 2021 18:55:17 +0800 Message-Id: <20210624105521.3964-34-zhiwei_liu@c-sky.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210624105521.3964-1-zhiwei_liu@c-sky.com> References: <20210624105521.3964-1-zhiwei_liu@c-sky.com> Received-SPF: none client-ip=115.124.29.196; envelope-from=zhiwei_liu@c-sky.com; helo=out29-196.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, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: palmer@dabbelt.com, bin.meng@windriver.com, Alistair.Francis@wdc.com, LIU Zhiwei Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" 32x32 multiplication result is added to a third register with Q63 saturation Signed-off-by: LIU Zhiwei --- target/riscv/helper.h | 4 ++++ target/riscv/insn32.decode | 4 ++++ target/riscv/insn_trans/trans_rvp.c.inc | 5 ++++ target/riscv/packed_helper.c | 31 +++++++++++++++++++++++++ 4 files changed, 44 insertions(+) diff --git a/target/riscv/helper.h b/target/riscv/helper.h index 0fa48955d8..05f8f31367 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -1456,3 +1456,7 @@ DEF_HELPER_4(kdmatt16, tl, env, tl, tl, tl) DEF_HELPER_3(smbt32, i64, env, i64, i64) DEF_HELPER_3(smtt32, i64, env, i64, i64) + +DEF_HELPER_4(kmabb32, tl, env, tl, tl, tl) +DEF_HELPER_4(kmabt32, tl, env, tl, tl, tl) +DEF_HELPER_4(kmatt32, tl, env, tl, tl, tl) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index d06075c062..dec714a064 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -1079,3 +1079,7 @@ kdmatt16 1111100 ..... ..... 001 ..... 1110111 @r smbt32 0001100 ..... ..... 010 ..... 1110111 @r smtt32 0010100 ..... ..... 010 ..... 1110111 @r + +kmabb32 0101101 ..... ..... 010 ..... 1110111 @r +kmabt32 0110101 ..... ..... 010 ..... 1110111 @r +kmatt32 0111101 ..... ..... 010 ..... 1110111 @r diff --git a/target/riscv/insn_trans/trans_rvp.c.inc b/target/riscv/insn_trans/trans_rvp.c.inc index a88ce7a5c4..2de81abbb8 100644 --- a/target/riscv/insn_trans/trans_rvp.c.inc +++ b/target/riscv/insn_trans/trans_rvp.c.inc @@ -1126,3 +1126,8 @@ GEN_RVP64_R_ACC_OOL(kdmatt16); /* (RV64 Only) 32-bit Multiply Instructions */ GEN_RVP64_R_OOL(smbt32); GEN_RVP64_R_OOL(smtt32); + +/* (RV64 Only) 32-bit Multiply & Add Instructions */ +GEN_RVP64_R_ACC_OOL(kmabb32); +GEN_RVP64_R_ACC_OOL(kmabt32); +GEN_RVP64_R_ACC_OOL(kmatt32); diff --git a/target/riscv/packed_helper.c b/target/riscv/packed_helper.c index eb086b775f..3c05c748c4 100644 --- a/target/riscv/packed_helper.c +++ b/target/riscv/packed_helper.c @@ -3582,3 +3582,34 @@ static inline void do_smtt32(CPURISCVState *env, void *vd, void *va, } RVPR64_64_64(smtt32, 1, 8); + +/* (RV64 Only) 32-bit Multiply & Add Instructions */ +static inline void do_kmabb32(CPURISCVState *env, void *vd, void *va, + void *vb, void *vc, uint8_t i) +{ + int64_t *d = vd, *c = vc; + int32_t *a = va, *b = vb; + *d = sadd64(env, 0, (int64_t)a[H4(2 * i)] * b[H4(2 * i)], *c); +} + +RVPR_ACC(kmabb32, 1, 8); + +static inline void do_kmabt32(CPURISCVState *env, void *vd, void *va, + void *vb, void *vc, uint8_t i) +{ + int64_t *d = vd, *c = vc; + int32_t *a = va, *b = vb; + *d = sadd64(env, 0, (int64_t)a[H4(2 * i)] * b[H4(2 * i + 1)], *c); +} + +RVPR_ACC(kmabt32, 1, 8); + +static inline void do_kmatt32(CPURISCVState *env, void *vd, void *va, + void *vb, void *vc, uint8_t i) +{ + int64_t *d = vd, *c = vc; + int32_t *a = va, *b = vb; + *d = sadd64(env, 0, (int64_t)a[H4(2 * i + 1)] * b[H4(2 * i + 1)], *c); +} + +RVPR_ACC(kmatt32, 1, 8);