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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5F02ECD98F0 for ; Sun, 21 Jun 2026 22:46:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=gEt6DTuBzI0+FzGS8r7ZT6Ohyc5Y63Le4qa6MCGvfow=; b=cfha6lw6BCboY2c+cpIs+X9sxD 4roXNWyQVmEtyRXw2NWrdfrEuFH+xbTSnsFcdNWjDMoxmdYxMfydNZia1KCN0aotxVdQO0rCnzKj5 Amn2wEJ2fVrCnqOu+q4Eo/Z1+stT9SamJKaYCjDnfBcNLYN/WlENFrjGu+Pl1+dbkAPWZlM3x78H+ akxrFl3UNaLtSjNK4KqhjHiYwWm+giRoV/cNEIJy8ynd+T9Ok7ez4EmE7Z/nTYvzKoJUghJG0wjsr dX5NmJ2jCTI4tQhwhKWbecBXGoyoTPKDvbibC5M3w+/5+RKrNwny2zXG3GX9WdyhWl/7zP7E87kIQ zZ5/ua+A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wbQw3-00000004Da0-2DEY; Sun, 21 Jun 2026 22:46:39 +0000 Received: from mout-p-103.mailbox.org ([80.241.56.161]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wbQw0-00000004DZM-30s7 for linux-arm-kernel@lists.infradead.org; Sun, 21 Jun 2026 22:46:38 +0000 Received: from smtp102.mailbox.org (smtp102.mailbox.org [10.196.197.102]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-103.mailbox.org (Postfix) with ESMTPS id 4gk5zT6T4Vz9tnx; Mon, 22 Jun 2026 00:46:29 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1782081989; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gEt6DTuBzI0+FzGS8r7ZT6Ohyc5Y63Le4qa6MCGvfow=; b=YuKr0L4wCdBvR6PEHbJBHWgcBIr4EUYEj7DgkSyARftTpwWKTcttWJue4QRFTnT2XLRw8F URVVqNoAXGTy82KmgEGt6GxYxqyjn88uvd9jzQSc8K7xXasz9G3QRWBP8At6u3Asu6RZUK 34ceq07SUILwfmMA9sTLigAJLFIroByMbhHUq0i5a4P/yhl/B/tXlyml7gOhkZTeQrShnm 3Af+2x0NxVL5aS27Ll+AGlpAcP+qPaQ+vj3paPetTDn9pK7a8ohT6sTYOfqMlccUSXzlYm LI3/pPLB23QBVV3bejKFgZMeXsHDFPOGglROgwUPRMXftSFdzSs4lOvewbHbaw== Message-ID: Date: Mon, 22 Jun 2026 00:46:25 +0200 MIME-Version: 1.0 Subject: Re: [PATCH v2 3/4] irqchip/gic-v3: Add Renesas R-Car Gen4 erratum workaround To: Thomas Gleixner , linux-pci@vger.kernel.org Cc: Yoshihiro Shimoda , =?UTF-8?Q?Krzysztof_Wilczy=C5=84ski?= , Bjorn Helgaas , Catalin Marinas , Conor Dooley , Geert Uytterhoeven , Krzysztof Kozlowski , Lorenzo Pieralisi , Manivannan Sadhasivam , Marc Zyngier , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org References: <20260618220427.14325-1-marek.vasut+renesas@mailbox.org> <20260618220427.14325-4-marek.vasut+renesas@mailbox.org> <87cxxkma5p.ffs@fw13> Content-Language: en-US From: Marek Vasut In-Reply-To: <87cxxkma5p.ffs@fw13> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-MBO-RS-META: n8czsugnw3z1ybb5adzw75f9b7bgn1xy X-MBO-RS-ID: 9459b256e9c9aa6c616 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260621_154636_910124_F40558AB X-CRM114-Status: GOOD ( 12.20 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 6/21/26 12:59 PM, Thomas Gleixner wrote: > On Fri, Jun 19 2026 at 00:02, Marek Vasut wrote: >> Renesas R-Car S4/V4H/V4M GIC600 integration has address width for AXI >> or APB interface configured to 32 bit, it can therefore access only >> the first 4 GiB of physical address space. This information comes from >> R-Car V4H Interface Specification sheet, there is currently no technical >> update number assigned to this limitation. Further input from hardware >> engineer indicates that this limitation also applies to R-Car S4 and V4M. >> Name the limitation GEN4GICITS1, and add a driver quirk to mitigate this >> limitation. >> >> The quirk is keyed on the combination of the GIC implementation >> and the platform identification in the device tree. >> >> Signed-off-by: Yoshihiro Shimoda >> Signed-off-by: Marek Vasut > > This SOB chain is broken. Broken ? I don't understand , could you please elaborate ? Should I sort this alphabetically or is that something else ? Thank you for your help !