From nobody Mon Feb 9 22:19:00 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1623684691; cv=none; d=zohomail.com; s=zohoarc; b=YL/Woejp+7/xUaGjexBAH4zb3FbpsZYcnVUIiwWBiO0vvKy6AobBIDUJsZ2Bus+J0eELpLcvDvImFkFzAGXTMDc48Qoi96HT6vBdp5R5pq6kxpq9ujetOqoStqbLrUVril8udrHaQrfpw1H+0xyaoQplKalNtWA69ny5NkYmYvQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1623684691; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=6HUbCaFlBtK1Xe4km8xr7tJiBf/M1y8WD45LRVsZA+U=; b=FJRor78ilCsNi9za3HZMETGw0UvqMyNz7QnsofkjoDX3mQfMUPEIwTFZxJsoLPDZUDMFFJhQtQESNUeoImP2rHUffF5WJ60l1uGDeH+57talMBcL1ga8jkn3HJApZRk3eWSXH0xsDX+izcZV+2ZxdBUOW/sOwP8Y9hJMmog/Ai4= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1623684691657643.3216489281532; Mon, 14 Jun 2021 08:31:31 -0700 (PDT) Received: from localhost ([::1]:49170 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lsoYk-0006UV-IA for importer@patchew.org; Mon, 14 Jun 2021 11:31:30 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47796) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lsoEe-0001KB-MP for qemu-devel@nongnu.org; Mon, 14 Jun 2021 11:10:44 -0400 Received: from mail-wr1-x42a.google.com ([2a00:1450:4864:20::42a]:42980) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lsoES-0000Ng-Ar for qemu-devel@nongnu.org; Mon, 14 Jun 2021 11:10:44 -0400 Received: by mail-wr1-x42a.google.com with SMTP id c5so14922947wrq.9 for ; Mon, 14 Jun 2021 08:10:31 -0700 (PDT) Received: from orth.archaic.org.uk (orth.archaic.org.uk. [81.2.115.148]) by smtp.gmail.com with ESMTPSA id b8sm20865639wmd.35.2021.06.14.08.10.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Jun 2021 08:10:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=6HUbCaFlBtK1Xe4km8xr7tJiBf/M1y8WD45LRVsZA+U=; b=W2PvL3Uw7T0BLks3QfVZmKxDkt6cpfqW4GV8BnQHpwvQxc4McGkoXaFesNwrrp0w2q kjEDqRuNml6SU/CBm713LZWr20Cq+CzL4YFzTaTSUWlV85jc/ppJSyV7sQCP0V59u0cJ gBRuKV/s0/m8S022SBvPf3BdGPnon+YceyYSg9WLjsFAyveD56kFcMZqyKGQWZgWUEDQ 9yth8T65Ixrc55Ge0448SMrmCJCGH7NaXsff1M5B830AfCUIHd0W/ZSZL3ZESLECR9V5 ehQp8lVsW6qDyh6mGU6D3gmf+7h/OFl/5OFQEjgcl2FOnUjUudubyrB57gMhlJiQ5Tg/ Hslw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6HUbCaFlBtK1Xe4km8xr7tJiBf/M1y8WD45LRVsZA+U=; b=hpFBfJq+XyuXKmv/5lxUSdI2aHQkmAp5nasGQVHftpV6AGNR1WcW+XIE4jxUAfz/QB hMTsUiFk5zlNvSNjRNpZERATAjoDarRS+fGY34FgJe8pof9QGKdgWO0vkAXnAZrTO+WM LNzuEmINUmYTpVjBMK0hMRsHpzuXgoiUz66krL/7+gs8u/ys50l2xftAAEr0w8uJOaFz so78Pj+/uEuWosl1Sjmbmnr6006+C34V3azSzrfAPOnd6EDG2FYvwoa5Ajst9d5hliKo LY0DPeHR7wXt29CsaIlMPMZppM2xdBuQCksjJ7EFc6slPA4pZ+PkbpzGS5VkiV0gup0s Zb0g== X-Gm-Message-State: AOAM533+Tb7ujJdxmrttmuMVnqcFVjds3e6jRv7n5/dmoEYfzr5h55lr ux8RHe8GmADzA+InaY2+Qp69Ow== X-Google-Smtp-Source: ABdhPJxsC0brp5bX+mj6VuIPWJXpi5zSpBcRllHpNLbnev3BcOYeXXv19hk1O9F4l5ZpBeamCFC4YA== X-Received: by 2002:a5d:50ca:: with SMTP id f10mr18936904wrt.411.1623683431018; Mon, 14 Jun 2021 08:10:31 -0700 (PDT) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH v2 25/57] target/arm: Implement MVE VMULH Date: Mon, 14 Jun 2021 16:09:35 +0100 Message-Id: <20210614151007.4545-26-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210614151007.4545-1-peter.maydell@linaro.org> References: <20210614151007.4545-1-peter.maydell@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=2a00:1450:4864:20::42a; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x42a.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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Content-Type: text/plain; charset="utf-8" Implement the MVE VMULH insn, which performs a vector multiply and returns the high half of the result. Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson --- target/arm/helper-mve.h | 7 +++++++ target/arm/mve.decode | 3 +++ target/arm/mve_helper.c | 26 ++++++++++++++++++++++++++ target/arm/translate-mve.c | 2 ++ 4 files changed, 38 insertions(+) diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h index 707b9cbd546..5c80b185ccc 100644 --- a/target/arm/helper-mve.h +++ b/target/arm/helper-mve.h @@ -81,3 +81,10 @@ DEF_HELPER_FLAGS_4(mve_vsubw, TCG_CALL_NO_WG, void, env,= ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_vmulb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_vmulh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_vmulw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) + +DEF_HELPER_FLAGS_4(mve_vmulhsb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmulhsh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmulhsw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmulhub, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmulhuh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_4(mve_vmulhuw, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) diff --git a/target/arm/mve.decode b/target/arm/mve.decode index f7d1d303f17..ca4c27209da 100644 --- a/target/arm/mve.decode +++ b/target/arm/mve.decode @@ -82,6 +82,9 @@ VADD 1110 1111 0 . .. ... 0 ... 0 1000 . 1 . = 0 ... 0 @2op VSUB 1111 1111 0 . .. ... 0 ... 0 1000 . 1 . 0 ... 0 @2op VMUL 1110 1111 0 . .. ... 0 ... 0 1001 . 1 . 1 ... 0 @2op =20 +VMULH_S 111 0 1110 0 . .. ...1 ... 0 1110 . 0 . 0 ... 1 @2op +VMULH_U 111 1 1110 0 . .. ...1 ... 0 1110 . 0 . 0 ... 1 @2op + # Vector miscellaneous =20 VCLS 1111 1111 1 . 11 .. 00 ... 0 0100 01 . 0 ... 0 @1op diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c index 4dc4aaa5932..687a5cd85c7 100644 --- a/target/arm/mve_helper.c +++ b/target/arm/mve_helper.c @@ -377,3 +377,29 @@ DO_2OP(veor, 8, uint64_t, DO_EOR) DO_2OP_U(vadd, DO_ADD) DO_2OP_U(vsub, DO_SUB) DO_2OP_U(vmul, DO_MUL) + +/* + * Because the computation type is at least twice as large as required, + * these work for both signed and unsigned source types. + */ +static inline uint8_t do_mulh_b(int32_t n, int32_t m) +{ + return (n * m) >> 8; +} + +static inline uint16_t do_mulh_h(int32_t n, int32_t m) +{ + return (n * m) >> 16; +} + +static inline uint32_t do_mulh_w(int64_t n, int64_t m) +{ + return (n * m) >> 32; +} + +DO_2OP(vmulhsb, 1, int8_t, do_mulh_b) +DO_2OP(vmulhsh, 2, int16_t, do_mulh_h) +DO_2OP(vmulhsw, 4, int32_t, do_mulh_w) +DO_2OP(vmulhub, 1, uint8_t, do_mulh_b) +DO_2OP(vmulhuh, 2, uint16_t, do_mulh_h) +DO_2OP(vmulhuw, 4, uint32_t, do_mulh_w) diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c index e51650625c5..1c7ef8e1110 100644 --- a/target/arm/translate-mve.c +++ b/target/arm/translate-mve.c @@ -347,3 +347,5 @@ DO_LOGIC(VEOR, gen_helper_mve_veor) DO_2OP(VADD, vadd) DO_2OP(VSUB, vsub) DO_2OP(VMUL, vmul) +DO_2OP(VMULH_S, vmulhs) +DO_2OP(VMULH_U, vmulhu) --=20 2.20.1