From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout-p-202.mailbox.org (mout-p-202.mailbox.org [80.241.56.172]) (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 D9453569F01; Tue, 8 Sep 2026 16:27:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788884851; cv=none; b=PHl0FhVSZDn9XF70GneWIw6oE3vnrURotCOfuX2cCKWSbQjZoyuyjiQqoOQnHkm4gsG6Arj/fDsq7Iv9ZfeWXzi0eh97N38PpyaRBeW3qlBqRkLOgO3PYBVGt5tt4hNHOb6DY81EizxyG1Mwdm1oeyhk6RK7kkfklrKEr7sFEVM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788884851; c=relaxed/simple; bh=4tot0O+d8TSmgQ1aVQb/tfZWtrwMnEKjHWtOI+zvfOY=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=CBl/3KBdVRXHvQW5BdUo14nze+9ou7GV4bAI4UbfwMzraoDu/BNjg8+vILugVgUiIlGbUKxFJESK+Mjv+5dlnUIXgxJIzq7938/W3OCJwlRMkb6kxrwwwq+M9cRwT8Xnhf4N9OvrW8CH1KMle0aiK4XcdRm28OQE4sH7TSHsKaA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org; spf=pass smtp.mailfrom=mailbox.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=Sz9qeAyt; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=on45Idyi; arc=none smtp.client-ip=80.241.56.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mailbox.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="Sz9qeAyt"; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="on45Idyi" Received: from smtp1.mailbox.org (smtp1.mailbox.org [10.196.197.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-202.mailbox.org (Postfix) with ESMTPS id 4hfTqg3g9szMl1L; Tue, 08 Sep 2026 18:27:27 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1788884847; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zV9GB3fXIyB5NrQ6rEv5WVb9ldeTAtPVcPbM4zRhXmA=; b=Sz9qeAytNGxWf0MkkrZ3MlYFlhTH3hjIkpZ/dSTBIMenAV3iHIkQqCAcHrzYDtxHMaBf0W MaeiA0xX70zK4blWKH7v1f+9tl6+2alZZ5t6scyNsQNbR1cVeVtDyp4757IiHA8ClYLeXt h0LiOWiSnEiHjhmz6bIHzx/0Oohmiao9pN5aQCktddE+KPepKCqMs0WT0LsXunjvtFpI8B VUN/CBLu4k4N43V+LbHXtHtwFML/IceP5B28uyLDmgYhc1NU/qHPfgURqPuML+87pdPnXy ExXrqmReeV/0QFSgnjifDTRram/b4WQ8AfNQO077/HKG8UI839j323CVVAl4ag== Message-ID: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1788884845; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zV9GB3fXIyB5NrQ6rEv5WVb9ldeTAtPVcPbM4zRhXmA=; b=on45IdyiOihjZ3noklR6uoYpKdewRt4+AY7Cec1AyyjixAiL9ucsaZEYWXG1v9pkX2KJRo CUW1BZOkFFZMW93AbpxqScxiscr8XypgEbToTHVggabqiR9OThOsfS8xavLrGyhp949ZW1 vwxtSs2xLiQe0jE+blHSgIbrg11+qnZowqr2bRxABYfg3cnZv9mIfB/Z3HSTSHehRu6A8x ILGjthCIL8Hz+hjjY6pl7kplwwZ3pWTVr883riWaQrqgL7f/lzU6LBtWwPeeV2cqhSTJvZ A5AXdOpl2IQykafHFl1+eu3rQ6VMrNcA2fSOLz70jXJw1AXe2MHYTCaqfZrIoQ== Date: Tue, 8 Sep 2026 18:27:23 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH] arm64: dts: renesas: r8a779h0: Add GICv3 ITS and update PCIe node To: Geert Uytterhoeven , Marek Vasut Cc: linux-arm-kernel@lists.infradead.org, Conor Dooley , Krzysztof Kozlowski , Magnus Damm , Rob Herring , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org References: <20260906140134.492084-1-marek.vasut+renesas@mailbox.org> Content-Language: en-US From: Marek Vasut In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-MBO-RS-ID: 95a871c755375494b81 X-MBO-RS-META: gsb99t9ej18ugjwbxn3iuk755yh9d7m3 On 9/8/26 10:46 AM, Geert Uytterhoeven wrote: Hello Geert, > As I am not PCIe DT expert, I am comparing this to the corresponding > patch for R-Car V4H, which I have already queued as commit > 7fe73a3a3f2c3718 ("arm64: dts: renesas: r8a779g0: Add GICv3 ITS and > update PCIe nodes") in renesas-devel, but which probably needs some > updates. I sent a fix for that one: [PATCH] arm64: dts: renesas: r8a779g0: Add MSI cells to GICv3 ITS >> --- a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi >> +++ b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi >> @@ -691,6 +691,8 @@ pciec0: pcie@e65d0000 { >> resets = <&cpg 624>, <&cpg 1121>; >> reset-names = "pwr", "core"; >> max-link-speed = <4>; >> + msi-parent = <&its 0>; > > This has an extra cell "0", which is probably correct, given > "#msi-cells = <1>" below. > >> + msi-map = <0x0 &its 0x0 0x10000>; > > This is not present on R-Car V4H (which is probably wrong). > > Interestingly, Documentation/devicetree/bindings/pci/pci-ep.yaml > documents msi-map for endpoint node, so should it be added to the > pcie-ep node, too? I do not think we should be adding it until we can test ITS with EP ? This patch adds the ITS only to the RC side, where I can test it.