From nobody Tue Feb 10 01:35:04 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=reject dis=none) header.from=google.com ARC-Seal: i=1; a=rsa-sha256; t=1749773274; cv=none; d=zohomail.com; s=zohoarc; b=MBLKh/6fLnJIPVQdR+UVdLMjoAs33ny317ippFOYR+stkN0kF8UhhtSHFsEJP/6nX8JflRSfi9ijLJoZsgK7hnVDdkmxbwM2U+kZeHpfu2fFEsKwTeGmXGxJowhplG+rcDICfaVj3yRuR87EUYw0PJGPEUnfE1uCBsmD0X/xsU4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1749773274; h=Content-Type:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=qzeXApkoHKyQHwiWeTNus/brrOxPdJq1kjayormL0Vs=; b=JPGyxjg2xM7TlCexliHlmSgMy55lTHdyibdzTKwT/b4GwGHkWzg7WAnsl51vKK0rXEpe2xg5KOyNkVoXac53m+vkn9Vug7/+APC+AGVxDtJDs5BH2DtJXfncHJO70UBk9MebJz1Y7DL8CyNRSDN3u7JAfumBhbBOA6kx7b0TDis= 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=reject dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1749773274084788.9596534511497; Thu, 12 Jun 2025 17:07:54 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uPrux-00060b-5m; Thu, 12 Jun 2025 20:05:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <3CWtLaAcKClY8CA9C164CC492.0CAE2AI-12J29BCB4BI.CF4@flex--komlodi.bounces.google.com>) id 1uPruH-0005qi-AJ for qemu-devel@nongnu.org; Thu, 12 Jun 2025 20:04:29 -0400 Received: from mail-pl1-x649.google.com ([2607:f8b0:4864:20::649]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from <3CWtLaAcKClY8CA9C164CC492.0CAE2AI-12J29BCB4BI.CF4@flex--komlodi.bounces.google.com>) id 1uPruF-0000Zd-Nl for qemu-devel@nongnu.org; Thu, 12 Jun 2025 20:04:28 -0400 Received: by mail-pl1-x649.google.com with SMTP id d9443c01a7336-235e1d66fa6so14388205ad.0 for ; Thu, 12 Jun 2025 17:04:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1749773065; x=1750377865; darn=nongnu.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=qzeXApkoHKyQHwiWeTNus/brrOxPdJq1kjayormL0Vs=; b=U6HMRmO5/2Q5kFg8xS3AKQE63dUheuOX6DAITITb/HZn7q/wp/8N9Wdpd8xOG1Thoj 9d8Fry/dsnjSQmxHhP9piVGAwRFMylWppCEsNN5Be9muWd1PmnPkemtg6UnE6vjNJgQC EuoavtADB61I44GCcZUgyDWHs9yyvPtXf/nqyHcyx8qHA1x5MnCRCtNu5pJXM1TbrBgW +G/6O6WBgtA7WC0txHKf2J/sy1NnIMvvRxAaWa3Tn5k5P6eQPIEp9mUxTFO1lTvTu3+e 3AQZ8jbLO66JQDvJMVzGjISJ/cCpLI5MZIFlEuvd9h55SQ1QbumLO05vKB6hU+8moEJs JOXw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1749773065; x=1750377865; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=qzeXApkoHKyQHwiWeTNus/brrOxPdJq1kjayormL0Vs=; b=Tna3q5YkJNhBEGPKG2sl2AHPbwx8wiltuEeuPE9w9pnBbdTFhxqY1RpbkQLunevu6U zLVjEoF2rCfwwQ1XVdLrqqh8VDfiR9FUIs5+dIrdCXML2ASiduc3T5rcTltq6tgGmq+R AqFz/UEsJimBIVmyY6JLSIm0BYOOWB9DZ7iUbTmbP1zW6aJJ/j5V6vEczHDWzVUlqmXd fOmEg+skWFOuc6YXlvqYr4Yb9xREFZI1wuklOTygw/YTE/JsZBd0dpYhdPL5J7o+5KC9 /fUo26TeWT2j50LuNnaR22/1WfHzjj5+X+eemZDTBHcrdwjgm2rz6ylH8/HcLE+tl0hv lBqA== X-Gm-Message-State: AOJu0YzUyxyrv4xbUJgGRehx/yPXU7E6JEQdxHl2ZkrAmiAWU7bPc+VX sMeiI7odmIpEKrcrVcMQgeflKKN6SLdmAkwC1UdNekgS9EQhQ3w9+z3Zy75WL6m/IcyQzmx4DVW VA5LneL6Ez19ZbJXKyOdFvsHSiD/njPoDCtrLG2MsWlLv8bLnV7X1zrI847lWPyJgg6SKk9CLWn HnObak4UrQxn4LhgJXBVhV9WK3537V4G0W8HpbDtwL X-Google-Smtp-Source: AGHT+IGLKDmLbZW/qGezSxYha2G+BZmAVQInMd45qP0gEERp59ero1+jqvHP6nwox2JBl1Byld/1jiqT+PWI X-Received: from pgbda8.prod.google.com ([2002:a05:6a02:2388:b0:b2c:4d7e:b626]) (user=komlodi job=prod-delivery.src-stubby-dispatcher) by 2002:a17:902:f684:b0:234:aa5b:e7b1 with SMTP id d9443c01a7336-2365d8ad4aamr11086965ad.18.1749773065089; Thu, 12 Jun 2025 17:04:25 -0700 (PDT) Date: Fri, 13 Jun 2025 00:04:01 +0000 In-Reply-To: <20250613000411.1516521-1-komlodi@google.com> Mime-Version: 1.0 References: <20250613000411.1516521-1-komlodi@google.com> X-Mailer: git-send-email 2.50.0.rc1.591.g9c95f17f64-goog Message-ID: <20250613000411.1516521-10-komlodi@google.com> Subject: [PATCH 09/19] hw/i3c/dw-i3c: Treat more registers as read-as-zero From: Joe Komlodi To: qemu-devel@nongnu.org Cc: venture@google.com, komlodi@google.com, clg@kaod.org, peter.maydell@linaro.org, steven_lee@aspeedtech.com, leetroy@gmail.com, jamin_lin@aspeedtech.com, andrew@codeconstruct.com.au, joel@jms.id.au, qemu-arm@nongnu.org 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=2607:f8b0:4864:20::649; envelope-from=3CWtLaAcKClY8CA9C164CC492.0CAE2AI-12J29BCB4BI.CF4@flex--komlodi.bounces.google.com; helo=mail-pl1-x649.google.com X-Spam_score_int: -95 X-Spam_score: -9.6 X-Spam_bar: --------- X-Spam_report: (-9.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_MED=-0.001, 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, USER_IN_DEF_DKIM_WL=-7.5 autolearn=ham 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-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @google.com) X-ZM-MESSAGEID: 1749773275082116600 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" RESET_CTRL and INTR_FORCE are write-only. Signed-off-by: Joe Komlodi Reviewed-by: Patrick Venture Reviewed-by: Jamin Lin --- hw/i3c/dw-i3c.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/i3c/dw-i3c.c b/hw/i3c/dw-i3c.c index 4f40f999f4..bf51c00935 100644 --- a/hw/i3c/dw-i3c.c +++ b/hw/i3c/dw-i3c.c @@ -359,7 +359,10 @@ static uint64_t dw_i3c_read(void *opaque, hwaddr offse= t, unsigned size) uint64_t value; =20 switch (addr) { + /* RAZ */ case R_COMMAND_QUEUE_PORT: + case R_RESET_CTRL: + case R_INTR_FORCE: value =3D 0; break; default: --=20 2.50.0.rc1.591.g9c95f17f64-goog