From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A8F6EC77B7A for ; Mon, 17 Apr 2023 16:39:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Subject:Cc:To:From:Message-ID:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=RiUUYe9jTTtDLFmLg1GB0UQ5X4/sBBp0gzOaZntAwkQ=; b=xJiJ31kf4ajITM 9W/R8QDeF49fwHAjgK8yievDQ5j08YheoYvlGY9CBYxirrIZvda1F0/5a6h6f/LN/CxnKWEuakHqr v3fseMneoTeUnLqUWVVSgb4TqIPtTt6IA0RIehqxG37DAwuo090tg/xHJt4XGz9n4/TvO7l0cnG51 kCGqizyYU3HkXDqM1XG5Sfz8qzWR0gXuWD8MDZy+gRqfxAxsF3ClkQRHxovatYtb8xoj8eMqdvE+T wmXcEa+vbik126KtUVI6zIEQAnBDNsQiEJYjJMKDUM6FpfjTtC6XyR6bSWKwYc1ElkMYUhYh+3Ko4 MaPGoUdUtZBPPzg3T3yA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1poRsu-00H5MB-0z; Mon, 17 Apr 2023 16:39:20 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1poRsq-00H5L7-2O for linux-rockchip@lists.infradead.org; Mon, 17 Apr 2023 16:39:17 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id DA9B561A11; Mon, 17 Apr 2023 16:39:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3C1DCC433D2; Mon, 17 Apr 2023 16:39:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1681749553; bh=cjNKKMHdrHO2WstsJosUdEUm+sLD/6tKUreVY2xuCjg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=KdX1cd9ljXqYNZsfAbNsWfoSGDGQwRVAp7W3ZcCtdqzr3pGppXmB9Cfqm4m3qVlW2 443tmXPoreI6N8B808WkUW5fRXk8vftd/AoWRIAnYPIJNKiEl/F/C37o6msNVSXaf3 wsrtdEu2PpgD7Z+bAmNYuAnKQDEW90HVQEeu2m2Sml341AYOZrVnkecdu09OPVPOKG GSLmXZx4tjyvgTlT0FoGwSkyud43Heu5qQ33DWDYne2pCr3SJFzNMLBelL717LLv9L QlssVszIufxHY0OKo46qVWmPGsOO2qrpLvXYg+QXsiyVe/6Rj/ibTKg6vQCfeRrmbR FHsJ2g/Le3Yyw== 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 4.95) (envelope-from ) id 1poRsk-00956z-Pn; Mon, 17 Apr 2023 17:39:10 +0100 Date: Mon, 17 Apr 2023 17:39:10 +0100 Message-ID: <868reqlaz5.wl-maz@kernel.org> From: Marc Zyngier To: Sebastian Reichel Cc: Heiko Stuebner , Rob Herring , Krzysztof Kozlowski , Thomas Gleixner , Peng Fan , Robin Murphy , Peter Geis , XiaoDong Huang , Kever Yang , linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@collabora.com Subject: Re: [PATCH v2 2/2] arm64: dts: rockchip: rk3588: add MSI support In-Reply-To: <20230417150038.51698-3-sebastian.reichel@collabora.com> References: <20230417150038.51698-1-sebastian.reichel@collabora.com> <20230417150038.51698-3-sebastian.reichel@collabora.com> 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/28.2 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: sebastian.reichel@collabora.com, heiko@sntech.de, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, tglx@linutronix.de, peng.fan@nxp.com, robin.murphy@arm.com, pgwipeout@gmail.com, derrick.huang@rock-chips.com, kever.yang@rock-chips.com, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@collabora.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230417_093916_819275_2120E2C8 X-CRM114-Status: GOOD ( 16.12 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org On Mon, 17 Apr 2023 16:00:38 +0100, Sebastian Reichel wrote: > > Add the two Interrupt Translation Service (ITS) IPs that are part of the > GIC-600, which are required for message signalled interrupts (MSI). This > is required for PCIe, which fully relies on MSI for interrupts. > > Enabling the ITS nodes requires an operating system, that has a > workaround for Rockchip errata #3588001 (GIC600 can not support > shareable attribute). $SUBJECT is inaccurate. This adds the descriptions of the ITSs, but doesn't wire any MSI support at all (nobody even refers these nodes, so the whole thing is pretty pointless). M. -- Without deviation from the norm, progress is not possible. _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip