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 94CB4C43458 for ; Thu, 2 Jul 2026 22:19:08 +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=uIK2wXZt6lpexw1RHubScXDuScpKzH+Rgz4MJDFq5qU=; b=qnnmekrFq8o4WS+XBrq908g+wc vFJe87qVM6eEM0SUvkClB7Z6ePySrRaAIKqA4dYd/4Yvrubl8a7YBzBIPQWbGwENzCJ4YoXO6xvUc uGp0BSJ0decnnP7oCoq7MF89/qKQlm9YO96hVYjwFOwyT/cpaUwODsaGIGvbKOOd8ynby2QN7KTMC bB/Au5wRNIFTvhaESUpBQ8HoFwD9dLCPI2jkZFdt7RI7qh3sMV4mHiuyNuSL14PajUzWiDlPXrakq vx/WM/KDBztmbJo3Er03NxsuanrZ14s45DjRt2TvPPaCAklrm5ZCIAOlpCoh2i9sLoVIGRDQSRrRu LRu6n2iQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfPkL-00000005f46-3HH7; Thu, 02 Jul 2026 22:19:01 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wfPkJ-00000005f3o-3jep for linux-arm-kernel@lists.infradead.org; Thu, 02 Jul 2026 22:18:59 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id EE5DC601CA; Thu, 2 Jul 2026 22:18:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C475C1F000E9; Thu, 2 Jul 2026 22:18:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783030738; bh=uIK2wXZt6lpexw1RHubScXDuScpKzH+Rgz4MJDFq5qU=; h=From:To:Cc:Subject:In-Reply-To:References:Date; b=CREfmupkg9nGL3Ew/EXkU+T+JQ5dKch4+F69AFVz1GLhUkftCOhcFGPBzPexsATpg mQiSkKSBD25mkuLuGkKyDmZzv9I/Ro+8oHqZgvFQhJMxhSecuVGMJmDJSx4ogYFZC3 B2mOYGl5oqKY53a/9CJUhZ6HYNzvYlB0GhRiadeHqeHGmna98l/U9FJc2ewjiKekPw O32zadvoqu44Ue+iLi3eIufTKALzVX4kdUczoVvbSQbq/rxYndz2l9HM2NvqxeQAW5 dTlVRvBWatCFscdttyyBGR44vNEBXE08f7/eboDUucWlsy7T53xYTmGa0ElJSEheJH eVIO69EYIlprQ== From: Thomas Gleixner To: Marek Vasut , linux-pci@vger.kernel.org Cc: Marek Vasut , Marc Zyngier , Yoshihiro Shimoda , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Bjorn Helgaas , Catalin Marinas , Conor Dooley , Geert Uytterhoeven , Krzysztof Kozlowski , Lorenzo Pieralisi , Manivannan Sadhasivam , 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 v3 4/5] irqchip/gic-v3: Add Renesas R-Car Gen4 erratum workaround In-Reply-To: <20260701203918.63189-5-marek.vasut+renesas@mailbox.org> References: <20260701203918.63189-1-marek.vasut+renesas@mailbox.org> <20260701203918.63189-5-marek.vasut+renesas@mailbox.org> Date: Fri, 03 Jul 2026 00:18:55 +0200 Message-ID: <87wlvdm3w0.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 Wed, Jul 01 2026 at 22:37, 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. > > Acked-by: Marc Zyngier > Co-developed-by: Yoshihiro Shimoda > Signed-off-by: Yoshihiro Shimoda > Signed-off-by: Marek Vasut Assuming this goes through the PCI tree: Acked-by: Thomas Gleixner