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 73C5924886E; Fri, 12 Jun 2026 14:49:11 +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=1781275752; cv=none; b=obDdfYmmv18HRn4PiO6Lp832JxM2LSWIzoNG76IGF5pFXxXmi7DGooWWEFUYsK9dnGCmgowcPjq592ptXtyYI9uOP9layRpYPA0IlgMzCXakmSCgqdcd/gJUW7O1GlABSH7B7SUEhUZSb2c6iaD1v5fLTDa+tZOT4Hlk/ziVGE4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781275752; c=relaxed/simple; bh=BJFzGzOnd+wP2T3OXbmcSnUl6hlCrHcAS6mwQMT6zrM=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ZPE2YdBVMcS9MLX8rgH8LdOvVPHY+xqdTfzS65Jf8TAWx5n1R2S9CdOZDnQx7NkWDu697q7ndEZTeFW4/MQF5aNFtiYf+MR94enFAakbmsnqy1UCRFbv6Rg0iLBmHf8O9+DukgeBwUpbT36w5T8UC+W0kP+LaiW/ZnWve6X/Xy8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KqQ3m+ji; 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="KqQ3m+ji" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DDC861F000E9; Fri, 12 Jun 2026 14:49:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781275751; bh=qhPHLYbQyUfvef9/xCIIY8vt5USpJP7O50ve0Xr9Fco=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=KqQ3m+jibMcuY8vurw+rG7VdytA6Y6cMHo3roJQ8ImJswxu7g5OQsf6U9DmgKL9Ok tMoVfnttQQhbTRLujJvFm4Z3bZ7gZzKPvuegSKFNGFlYLiavZptALOMGNFohVAJBsU S2cf3GfT9s6pAt3G7PxxKl9WEcH0ikXnznL9+1kH7Dm5xiZa7amZAbjMwEevZ45B4a vJr8GleYk5liMgzbxAkB3mPRM5aQevk6Yqrzi9aFtqJTDnvJHo9OtiT8zww01quWWU JZFWZqvYd6+3/nlD+3b8S1gml9lQE6KMYyGi9pVigyovlwi1JcYwRC3L4eQz6SwZW2 qxF4lWtteSQaQ== Date: Fri, 12 Jun 2026 09:49:10 -0500 From: Rob Herring To: Ahmed Tiba Cc: Jonathan Cameron , will@kernel.org, xueshuai@linux.alibaba.com, saket.dumbre@intel.com, mchehab@kernel.org, dave@stgolabs.net, djbw@kernel.org, bp@alien8.de, tony.luck@intel.com, guohanjun@huawei.com, lenb@kernel.org, skhan@linuxfoundation.org, vishal.l.verma@intel.com, rafael@kernel.org, corbet@lwn.net, ira.weiny@intel.com, dave.jiang@intel.com, krzk+dt@kernel.org, catalin.marinas@arm.com, alison.schofield@intel.com, conor+dt@kernel.org, linux-arm-kernel@lists.infradead.org, Michael.Zhao2@arm.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org, Dmitry.Lamerov@arm.com, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, linux-edac@vger.kernel.org, acpica-devel@lists.linux.dev Subject: Re: [PATCH v5 09/10] dt-bindings: firmware: add arm,ras-cper Message-ID: <20260612144910.GA989816-robh@kernel.org> References: <20260529-topics-ahmtib01-ras_ffh_arm_internal_review-v5-0-2e0500d42642@arm.com> <20260529-topics-ahmtib01-ras_ffh_arm_internal_review-v5-9-2e0500d42642@arm.com> <20260529174407.7081ad0b@jic23-huawei> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Jun 11, 2026 at 03:22:21PM +0100, Ahmed Tiba wrote: > On 29/05/2026 17:44, Jonathan Cameron wrote: > > On Fri, 29 May 2026 10:50:49 +0100 > > Ahmed Tiba wrote: > > > .../devicetree/bindings/firmware/arm,ras-cper.yaml | 54 ++++++++++++++++++++++ > > > MAINTAINERS | 5 ++ > > > 2 files changed, 59 insertions(+) > > > > > > diff --git a/Documentation/devicetree/bindings/firmware/arm,ras-cper.yaml b/Documentation/devicetree/bindings/firmware/arm,ras-cper.yaml > > > new file mode 100644 > > > index 000000000000..3d4de096093f > > > --- /dev/null > > > +++ b/Documentation/devicetree/bindings/firmware/arm,ras-cper.yaml > > > @@ -0,0 +1,54 @@ > > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > > +%YAML 1.2 > > > +--- > > > +$id:http://devicetree.org/schemas/firmware/arm,ras-cper.yaml# > > > +$schema:http://devicetree.org/meta-schemas/core.yaml# > > > + > > > +title: Arm RAS CPER provider > > > + > > > +maintainers: > > > + - Ahmed Tiba > > > + > > > +description: > > > + Arm Reliability, Availability and Serviceability (RAS) firmware can expose > > > + a firmware-first CPER error source directly via DeviceTree. Firmware > > > + provides the CPER Generic Error Status block and notifies the OS through > > > + an interrupt. > > I'd like some spec references in here if possible. > I can add a reference to the UEFI CPER specification for the Generic > Error Status record format. > > For the firmware-first DT description itself I do not have a more specific > public reference to cite. Is there a platform actually using this with DT (FVP doesn't really count)? Rob