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 86600CD98F2 for ; Sun, 21 Jun 2026 10:59:44 +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-Type:MIME-Version: Message-ID:Date:References:In-Reply-To:Subject:Cc:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=2DN86s2IdRRyJNXclGrEm4t78z5nyQ6310zLXbM0epQ=; b=iAQ4soeX3SBt1//44xeqb2O0Yv pB7Nt5h+YvNXylqX24MO0SRC1c7W6GMk8A/96cosFLDVaH6dhxQhhEVeW/OAIDxswOZInegY5DjNv 11/e4qldjPRel5v0dudlyOdnZ3Gsnv9QO1l5XhoLRO24XnrJTJILgiqIXHg/DBfu7M+Dko7Z7iSfk V0+FGKY8QlHeqD3A8dwT93oICst7VoUCK+Xmp+ERy5wbw5XCoGgtXhH0beiiNz/URJocv9d0q6t0Y z/gUXZ+uZFhBi/PsXd7wN17TyM6o981/KBfyowbUluiVD0qZt7kzYsye4stpxLxdZIIgATZJNYGWw htir2bMw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wbFtn-00000003v15-46dV; Sun, 21 Jun 2026 10:59:36 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wbFtn-00000003v0z-0CTa for linux-arm-kernel@lists.infradead.org; Sun, 21 Jun 2026 10:59:35 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 6EB2A43D06; Sun, 21 Jun 2026 10:59:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A2C681F000E9; Sun, 21 Jun 2026 10:59:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782039574; bh=2DN86s2IdRRyJNXclGrEm4t78z5nyQ6310zLXbM0epQ=; h=From:To:Cc:Subject:In-Reply-To:References:Date; b=k0oH0xG0fSGdxdDmWKkVeDot0QA2oBIXsev45gW1JceuvKrZtboYrQ8YJfHAGC11G E8bkJSI93plEii+DTl7869YyAJtXWgwqpP6bu2Z9ICf4QFUZ882CQcBCWjn0CcQoEW RFj+6pLa6vBufrhwzuE633GimQOnb8Rq5jDagmjMBhuI05rNvijxGODSPYLY3nrlE4 Cu5qr28VZV/NdscIFUKxY7tkBlaxPAPOf+FdiXmO7eHL2S3zUc66d/m4B76DP97JUp 8JjtRF5ahmOrfCjZkQnms2tliC+Y42LL3TQ10mFnHt8oO5vs0wshlvfO9esQIc9/sf 96gExsWsABYVA== From: Thomas Gleixner To: Marek Vasut , linux-pci@vger.kernel.org Cc: Marek Vasut , Yoshihiro Shimoda , Krzysztof =?utf-8?Q?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 Subject: Re: [PATCH v2 3/4] irqchip/gic-v3: Add Renesas R-Car Gen4 erratum workaround In-Reply-To: <20260618220427.14325-4-marek.vasut+renesas@mailbox.org> References: <20260618220427.14325-1-marek.vasut+renesas@mailbox.org> <20260618220427.14325-4-marek.vasut+renesas@mailbox.org> Date: Sun, 21 Jun 2026 12:59:30 +0200 Message-ID: <87cxxkma5p.ffs@fw13> MIME-Version: 1.0 Content-Type: text/plain 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 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.