From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 767751DB356; Sun, 21 Jun 2026 17:00:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782061217; cv=none; b=BuNX+FdTm9GKaAg2G/7ed4HsxBt2/1LeTuZ7kesWS4o6ONn3Z7h9B+fZ7/fup0uWT8SSbeTch/XSXs0nG2anwhe6bDHrEjDIW33dyUz7spyptIkuhOsBAgSNpX8OuBt2jlUpOTy6Oxs8/JnAFVQXPlqxJRif4b2WVF2YR5GziIU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782061217; c=relaxed/simple; bh=kEVoJ0bmpyznG/CstwJVr5ZqY99y9/g8Rw3P55eq/4I=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=mBzNPcB7vy6o6xGD/2p9ZCbVDMAESGjv+xIiWoCu2Gx9gfH3jQ3bbRzm+jB0ZI88IN2zWGOZuc+aKJOzL1CjXdnoTasnhDsADxplk9NjJRFcz500CN5/h4Qv4O7YAWz/qbbx0B/eDKhB0JaTKylp81riuUfSQUl5WRt7sFp24vw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Pa4xl7to; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Pa4xl7to" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 34D011F000E9; Sun, 21 Jun 2026 17:00:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782061216; bh=LT13Elo8cXGba8BqA/kWfaMrSK5k41Vck1P+Ko1QHQQ=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=Pa4xl7tol/v63GF2T8ASzF+LpWLJtVcR3Yy69o2uBgQXgzRWk2oU4dfPtVwTuZvsr /gLPHtRzbhhJp41xZhV5E/xTPDsHQ37rAdjOQ7rmei4vXA9ylcw7K7D6qxwwUHJsA/ XTcR/7QqGEwUBWzQM+LEbP5aMIBhb5ePryNvP+uWn83JF4aF/sa7YDrPRi6Wk30eNb IOSnC7sxHOZxdLiWc3ab4jWf7r9DGMObQ3Ow5CS2ALtbPpWpUDdEm38CNx0HLrpiQH 75wFdU1TKXNSS4cN5jVtP8QrexbyQzp9vO9Ugt80skNx0RwINYLAYKFgSVV82dKWc2 uBgbkEZXlKuXQ== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1wbLWo-0000000EhsC-1O7v; Sun, 21 Jun 2026 17:00:14 +0000 Date: Sun, 21 Jun 2026 18:00:13 +0100 Message-ID: <864iivsuaq.wl-maz@kernel.org> From: Marc Zyngier To: Marek Vasut Cc: linux-pci@vger.kernel.org, Yoshihiro Shimoda , Krzysztof =?UTF-8?B?V2lsY3p5xYRza2k=?= , 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 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> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/30.1 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: marek.vasut+renesas@mailbox.org, linux-pci@vger.kernel.org, yoshihiro.shimoda.uh@renesas.com, kwilczynski@kernel.org, bhelgaas@google.com, catalin.marinas@arm.com, conor+dt@kernel.org, geert+renesas@glider.be, krzk+dt@kernel.org, lpieralisi@kernel.org, mani@kernel.org, robh@kernel.org, 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 X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false On Thu, 18 Jun 2026 23:02:01 +0100, 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 With the SoB chain issue addressed: Acked-by: Marc Zyngier M. -- Without deviation from the norm, progress is not possible.