From nobody Tue Feb 10 12:42:50 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=1627559390; cv=none; d=zohomail.com; s=zohoarc; b=jzIaTbIMMT4vjymBZhQAlWpmZn80vsm0Nb0uuMy4ebBSwQpdq8Rb17FrjcG9h2j9ja6ffM9EDn/hMahn0R3ikj5NMYewhzvj7DjOT9Vrkf9EOoXO5KJl3C6b7VmraLMIGPDwXZOygN9E3rOUH2r27L2ThKFsOaJ3qdYNHTIamtA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1627559390; h=Content-Transfer-Encoding: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=ZsgiYwh7qNLAcSkC7LxnVfqa/pmBeTfF8iAebdcRKSo=; b=CYYMM15qc+41Bzzi0GyBuOaPoSoSQhS6GIjrVvREcvm9rVpmCFhOYIcbp8XxTmB2e7h2aocjs+3XnUIOeS+g/ZS0sIxYnNPmCzqxOeDZSBzEGxy7Sqj2XV/gcbptjtqFzc+0SJo89gvsW/433bnP3kuzNFw0Daob8K1JbD/Qmug= 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 1627559390371697.6206857992221; Thu, 29 Jul 2021 04:49:50 -0700 (PDT) Received: from localhost ([::1]:60442 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m94Xs-0000eq-Tv for importer@patchew.org; Thu, 29 Jul 2021 07:49:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40704) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m941G-00019K-Ij for qemu-devel@nongnu.org; Thu, 29 Jul 2021 07:16:06 -0400 Received: from mail-wm1-x335.google.com ([2a00:1450:4864:20::335]:52898) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1m940s-0001Ir-VN for qemu-devel@nongnu.org; Thu, 29 Jul 2021 07:16:06 -0400 Received: by mail-wm1-x335.google.com with SMTP id n11so3469446wmd.2 for ; Thu, 29 Jul 2021 04:15:41 -0700 (PDT) Received: from orth.archaic.org.uk (orth.archaic.org.uk. [81.2.115.148]) by smtp.gmail.com with ESMTPSA id j140sm3037829wmj.37.2021.07.29.04.15.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 29 Jul 2021 04:15:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=ZsgiYwh7qNLAcSkC7LxnVfqa/pmBeTfF8iAebdcRKSo=; b=SOZtKpR6e95OuMwwg5Vj4v3FwmrUCpQVqO8qaGID1yX7o7SYO9cVmMhoa/Dc4rS5Eh PKxOOg46CuNQvjyoZ5WNsC1TmKxuao3hPYdHtNSdgxjjNh7zQAe9bH5XvmjBH5JzXexX WoCbBD6ZKfh0Rn147v3pj8F+m6O7IVtEIK80kGYmzW5a9t1c+ImG2wOE81OhIZvHY5E2 N9WmJqKE++EViMSydP8sJBPkZ5yryXQQCcZPC77xdh4cyFQDTkjPA9mXckCF4KRQEU1U GSRW0N3sUVa2rJeviUpF8Oroxd2Bhvp7aoFvpszgF5LMrCMKFXQKuMe3QTvaBYpdsAPB pxpw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ZsgiYwh7qNLAcSkC7LxnVfqa/pmBeTfF8iAebdcRKSo=; b=erdG1BPmTgxwiAuEWajmS8hz2y341NocZoHJy5tYo6T+/hZeXYjpgrpoAeKqknSdBu zz2jk3SebU4rFIQEmENob/v/OUEju2lhB8YfGnzoXZilJfS3BS3sV0sqM5CLNldKdPZX 3pQFlcDXLYoEWH6vVhpnZkcwwMtHsYKPLiePkd7piczZ/OY/dibTToIpcw4Z4VvH+Soz rODSG0V2b0hLr9thEw1t4imGH7A/BLWerxe0IuUyHUyu07m4l1V1/HQObmtdafSY/QG9 69n5oLrqf9NGj/SaWmUeRw/F/M6v9dpsR/gtrNE27unBW+Ed38SdPNljsskb1tyquSpN xvTw== X-Gm-Message-State: AOAM531WCfzyljRjaWApz8yVTeuWzshK8/TlX1ltsObuwAPrDrbtj0mr tI3lCDDDUSOZq/sEmr/+mwa0QXd6ycMFqA== X-Google-Smtp-Source: ABdhPJyBRfp3B2BwtgVEImoLug4hjAHdMuy57UrWnmxDpT1vZovS2+CEZlZccaB5fM9rw4CTBz+sqQ== X-Received: by 2002:a1c:238e:: with SMTP id j136mr4272553wmj.91.1627557340414; Thu, 29 Jul 2021 04:15:40 -0700 (PDT) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: [PATCH for-6.2 31/53] target/arm: Implement MVE VPNOT Date: Thu, 29 Jul 2021 12:14:50 +0100 Message-Id: <20210729111512.16541-32-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210729111512.16541-1-peter.maydell@linaro.org> References: <20210729111512.16541-1-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::335; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x335.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: 2.1.23 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: 1627559391200100001 Content-Type: text/plain; charset="utf-8" Implement the MVE VPNOT insn, which inverts the bits in VPR.P0 (subject to both predication and to beatwise execution). Signed-off-by: Peter Maydell Reviewed-by: Richard Henderson --- target/arm/helper-mve.h | 1 + target/arm/mve.decode | 1 + target/arm/mve_helper.c | 17 +++++++++++++++++ target/arm/translate-mve.c | 19 +++++++++++++++++++ 4 files changed, 38 insertions(+) diff --git a/target/arm/helper-mve.h b/target/arm/helper-mve.h index 651020aaad8..8cb941912fc 100644 --- a/target/arm/helper-mve.h +++ b/target/arm/helper-mve.h @@ -119,6 +119,7 @@ DEF_HELPER_FLAGS_4(mve_vorn, TCG_CALL_NO_WG, void, env,= ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_veor, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) =20 DEF_HELPER_FLAGS_4(mve_vpsel, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) +DEF_HELPER_FLAGS_1(mve_vpnot, TCG_CALL_NO_WG, void, env) =20 DEF_HELPER_FLAGS_4(mve_vaddb, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) DEF_HELPER_FLAGS_4(mve_vaddh, TCG_CALL_NO_WG, void, env, ptr, ptr, ptr) diff --git a/target/arm/mve.decode b/target/arm/mve.decode index 774ee2a1a5b..40bd0c04b59 100644 --- a/target/arm/mve.decode +++ b/target/arm/mve.decode @@ -571,6 +571,7 @@ VCMPGT 1111 1110 0 . .. ... 1 ... 1 1111 0 0= . 0 ... 1 @vcmp VCMPLE 1111 1110 0 . .. ... 1 ... 1 1111 1 0 . 0 ... 1 @vcmp =20 { + VPNOT 1111 1110 0 0 11 000 1 000 0 1111 0100 1101 VPST 1111 1110 0 . 11 000 1 ... 0 1111 0100 1101 mask=3D%mask= _22_13 VCMPEQ_scalar 1111 1110 0 . .. ... 1 ... 0 1111 0 1 0 0 .... @vcmp_sca= lar } diff --git a/target/arm/mve_helper.c b/target/arm/mve_helper.c index d326205cbf0..c22a00c5ed6 100644 --- a/target/arm/mve_helper.c +++ b/target/arm/mve_helper.c @@ -2201,6 +2201,23 @@ void HELPER(mve_vpsel)(CPUARMState *env, void *vd, v= oid *vn, void *vm) mve_advance_vpt(env); } =20 +void HELPER(mve_vpnot)(CPUARMState *env) +{ + /* + * P0 bits for unexecuted beats (where eci_mask is 0) are unchanged. + * P0 bits for predicated lanes in executed bits (where mask is 0) are= 0. + * P0 bits otherwise are inverted. + * (This is the same logic as VCMP.) + * This insn is itself subject to predication and to beat-wise executi= on, + * and after it executes VPT state advances in the usual way. + */ + uint16_t mask =3D mve_element_mask(env); + uint16_t eci_mask =3D mve_eci_mask(env); + uint16_t beatpred =3D ~env->v7m.vpr & mask; + env->v7m.vpr =3D (env->v7m.vpr & ~(uint32_t)eci_mask) | (beatpred & ec= i_mask); + mve_advance_vpt(env); +} + #define DO_1OP_SAT(OP, ESIZE, TYPE, FN) \ void HELPER(mve_##OP)(CPUARMState *env, void *vd, void *vm) \ { \ diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c index 93707fdd681..cc2e58cfe2f 100644 --- a/target/arm/translate-mve.c +++ b/target/arm/translate-mve.c @@ -887,6 +887,25 @@ static bool trans_VPST(DisasContext *s, arg_VPST *a) return true; } =20 +static bool trans_VPNOT(DisasContext *s, arg_VPNOT *a) +{ + /* + * Invert the predicate in VPR.P0. We have call out to + * a helper because this insn itself is beatwise and can + * be predicated. + */ + if (!dc_isar_feature(aa32_mve, s)) { + return false; + } + if (!mve_eci_check(s) || !vfp_access_check(s)) { + return true; + } + + gen_helper_mve_vpnot(cpu_env); + mve_update_eci(s); + return true; +} + static bool trans_VADDV(DisasContext *s, arg_VADDV *a) { /* VADDV: vector add across vector */ --=20 2.20.1