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 C4F0286341; Sun, 21 Jun 2026 10:59:34 +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=1782039575; cv=none; b=n56PfLNh/uonYCIQJPqWlL7u2MhBFtbRn06EyF8Q5tVenLMWPPzNu+Iyc+Q1eH1HrlmRqCbsCr4rdskX93GHgYC5g/3zBdko831mVkNg3GO7iJHfVhOJuYXpnEhGkoCl5pcMqrMxRA30hVdIYUAVlRFn9oF0Q6SZsDw8qLar3vA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782039575; c=relaxed/simple; bh=2DN86s2IdRRyJNXclGrEm4t78z5nyQ6310zLXbM0epQ=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=bZ46IP+4QINzJ6JX7mQRGbvnFV1vOSJhM0KP7MbHBFRQNnO0F7EhuJQN/8ZCkyeu4zLC6jj9hGmLp2K+UFfksDQ0y/+KUXT4hMmkI8rJz7oVat7gxfObibSNXSNc+NfHaoqDIb/Vd8CD7KQedKsIySoV2davhOB6mClgEYBT6/Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=k0oH0xG0; 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="k0oH0xG0" 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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain 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.