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 B9D24E7718F for ; Fri, 27 Dec 2024 16:49:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Subject:Cc:To:From:Message-ID:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=b+kJ5GgJSY5BEnf36zP1cyukJtWFWW9cUstSD5JDgMI=; b=yfrtIzKfE8hctG37j0WM9DkirB 7AhCajjHnjTPyEm2pzLpgIUTlKe8PsGcDkeABc84RxL0s4jBYZgziLq+o20jgo0Z0cRKXuaz8GmGJ ZY4/3eLACgm/kKXdd4Aw5xxXeCAXl+1jOXVho0+s9r67cmtJGEnzK5OZ//2Hit52x6nPynMEpVATv poz53PO7UCHNhsPBKvD7ZunWAFXrAXiftsSx5QyNNlglDX48mTG8vU48ha0qhgKV7ZRluNX1Fxd9x oQd0f3ke337BUt/sALNiVf2/N15tIQ0zHMwh0I4dRU4qqOdP+zXonlDXJ8HI50kIk7wNJIwt1L0rI +ygbOaAw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tRDWB-00000000dvi-3mHH; Fri, 27 Dec 2024 16:48:55 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tRDV0-00000000dm9-2M81; Fri, 27 Dec 2024 16:47:43 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 3F9815C62C1; Fri, 27 Dec 2024 16:47:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 84C5BC4CED3; Fri, 27 Dec 2024 16:47:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1735318061; bh=RbTLJ3TCnphcYvnAzlzQ9woXDDQOo0U23BlvBss9hvI=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=EF8lxMU++oHFKL/9oY/5q1H3k0CcrTSZ4IWiDS3IxVA7eu/siHUcHk6ZduFsJfzPw ZX1roINHgeXBQONqI5rsiazqv4JBk3D/4NLGvUb7kScIwGCk5lVakNC5LjcfOoXCgs Zz5uoh3gFcJYjB9YjjkIyzrHLggufQUvVUCJt/4NVxNcCWjrHK+uA2UaWnkzCoAxq0 KCnTLxmgWtw9pL+sCcWoexSPgx6UMq6YFWoWildsfwnv+PKU+Vio/pyC+k4plM6YSF 2cz7GUUmS/sASXAVkq3HyX+K0aYXeRRq71dm93g9+sB3PvrOnNZ7fWG65jNc0nwbEL qrPZqYKGIwO1g== Received: from sofa.misterjones.org ([185.219.108.64] helo=wait-a-minute.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 1tRDUx-007Fyr-Ce; Fri, 27 Dec 2024 16:47:39 +0000 Date: Fri, 27 Dec 2024 16:47:39 +0000 Message-ID: <87a5choyxg.wl-maz@kernel.org> From: Marc Zyngier To: Dragan Simic Cc: linux-rockchip@lists.infradead.org, heiko@sntech.de, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, FUKAUMI Naoki Subject: Re: [PATCH 1/2] arm64: dts: rockchip: Use "dma-noncoherent" in base RK3588 SoC dtsi In-Reply-To: References: 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/29.4 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: dsimic@manjaro.org, linux-rockchip@lists.infradead.org, heiko@sntech.de, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, naoki@radxa.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-20241227_084742_648598_02F7F142 X-CRM114-Status: GOOD ( 13.62 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 27 Dec 2024 15:42:23 +0000, Dragan Simic wrote: > > The preferred way to denote hardware with non-coherent DMA is to use the > "dma-noncoherent" DT property, at both the GIC redistributor and the GIC ITS > levels, [1] instead of relying on the compatibles to handle hardware errata, > in this case the Rockchip 3588001 errata. [2] > > Let's have the preferred way employed in the base Rockchip RK3588 SoC dtsi, > which also goes along with adding initial support for the Rockchip RK3582 SoC > variant, with its separate compatible. [2][3] > > [1] Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml > [2] https://lore.kernel.org/linux-rockchip/86msgoozqa.wl-maz@kernel.org/ > [3] https://lore.kernel.org/linux-rockchip/20241222030355.2246-4-naoki@radxa.com/ > > Cc: Marc Zyngier > Cc: FUKAUMI Naoki > Signed-off-by: Dragan Simic Acked-by: Marc Zyngier M. -- Without deviation from the norm, progress is not possible.