From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 B4C3A182BC; Tue, 20 May 2025 20:43:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747773816; cv=none; b=WHvC1HdsYMkzVZ4mK3tvCwH/75u3B1HROa/ThfrOx/Uu+FfCECzZxh0E5Mn0mTYS76P/KowCKdHQ1FLIoC05SXVDR0U2V2l2bgnEj2cmwyLtwaL9VeTZ1IeEKXIU5mscjjcctKClqttgGDBWUVxkOqqt2Z2ZL8MPFMoN3U7CY5Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747773816; c=relaxed/simple; bh=QKRukmbuEwwuWzb3b6AjUBX0NaLEkAeTqogcvnWc3BU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=gWL79n5j5SGUUECY1+HOzIhpZQpsS5dUPHGNcEu1AK+NEMEg7FIerVTZljyeFgmCQdh8e45wqbrGfNfwv/w5nNxg6UKUR18L9iNa1XVJ88d/mpHhNIptVqRRT04/h+Ptzr5LMLXEJTvhlisW3oyeWpGl4RvewzpodhrSo/0LKvs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fYQmjl10; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fYQmjl10" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F0E35C4CEE9; Tue, 20 May 2025 20:43:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747773816; bh=QKRukmbuEwwuWzb3b6AjUBX0NaLEkAeTqogcvnWc3BU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fYQmjl10u8d+o/qHPxX+Z4MEajH6bpHF2ohSk/NMgfeyJ5W5YUMRkuFGZjq/d0jsx BaG0g/U2ABvNahgnQkduP/YtmH25pTyvP7MW/rqC0N8a5r01uuYJ0bsgP71CUbd45o dSBdU9zjTGvwXGTJqqKmGtOlW4OTSbwBVx3tsTKrhmPESN0Pr9xBKrrdf4j2o8NpJC nm4LNnLsxDAiZkg3dmhPe0NVMch4yJadifVjnodGrZuvk50Y92jkjqRGEMj0HNJqN8 vsNcIC94Lfy1pUknXFU9sxrXGI95oXCzy6czSad81gv8n6YlT8qYoWlImEAE1gXGtI 1R1MsPbymYs0Q== Date: Tue, 20 May 2025 15:43:34 -0500 From: "Rob Herring (Arm)" To: Lorenzo Pieralisi Cc: Arnd Bergmann , Thomas Gleixner , Timothy Hayes , Jiri Slaby , Conor Dooley , Marc Zyngier , Sascha Bischoff , Mark Rutland , "Liam R. Howlett" , devicetree@vger.kernel.org, Catalin Marinas , Will Deacon , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 01/26] dt-bindings: interrupt-controller: Add Arm GICv5 Message-ID: <174777381319.1323810.4064448957148847478.robh@kernel.org> References: <20250513-gicv5-host-v4-0-b36e9b15a6c3@kernel.org> <20250513-gicv5-host-v4-1-b36e9b15a6c3@kernel.org> Precedence: bulk X-Mailing-List: devicetree@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: <20250513-gicv5-host-v4-1-b36e9b15a6c3@kernel.org> On Tue, 13 May 2025 19:47:54 +0200, Lorenzo Pieralisi wrote: > The GICv5 interrupt controller architecture is composed of: > > - one or more Interrupt Routing Service (IRS) > - zero or more Interrupt Translation Service (ITS) > - zero or more Interrupt Wire Bridge (IWB) > > Describe a GICv5 implementation by specifying a top level node > corresponding to the GICv5 system component. > > IRS nodes are added as GICv5 system component children. > > An ITS is associated with an IRS so ITS nodes are described > as IRS children - use the hierarchy explicitly in the device > tree to define the association. > > IWB nodes are described as a separate schema. > > An IWB is connected to a single ITS, the connection is made explicit > through the msi-parent property and therefore is not required to be > explicit through a parent-child relationship in the device tree. > > Signed-off-by: Lorenzo Pieralisi > Cc: Conor Dooley > Cc: Rob Herring > Cc: Krzysztof Kozlowski > Cc: Marc Zyngier > --- > .../interrupt-controller/arm,gic-v5-iwb.yaml | 78 ++++++++ > .../bindings/interrupt-controller/arm,gic-v5.yaml | 202 +++++++++++++++++++++ > MAINTAINERS | 7 + > 3 files changed, 287 insertions(+) > Reviewed-by: Rob Herring (Arm)