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 66D1DC0218D for ; Thu, 30 Jan 2025 23:21:38 +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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From: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=WQHn6edfgzFGCG4vfRDpC4aYK7sN8+4+UbMutzj7pZs=; b=JjiFB0tBcax4Lp6W9gCdM/loLt qwtFIp3BdAkfdRLnyVgCYWvYEAYP9rEWA7GkHaY3tIk6ACSH3Ly+bI9+MfVfSncCsHoy34oOrkoyg M2HaMkrG5tJju+ZCpV/7LslNy4+rtCXJXpbBAepRkfKExR/nOeoVVKERDPjc/ATv/PUPTMDmh00Fy m5xMwhDI2ulLcuMDNiYVix4hF01jCwfA76UESSeR9AQUV3n+zYfDZYvADf/J0xNH99v2l7L+G0ond E58wi6d4qWA/4X6K0AqOqwfgBJZhJcG404WKzgkh6tXz6YGMdahWZWezbM4koh0tifhr2ahp4c1F3 iimH/KYQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tddqi-00000009m3d-29YV; Thu, 30 Jan 2025 23:21:28 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tddpP-00000009luk-1LRb; Thu, 30 Jan 2025 23:20:08 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 4BD82A425B0; Thu, 30 Jan 2025 23:18:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 62DBEC4CED2; Thu, 30 Jan 2025 23:20:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1738279205; bh=KpU19pPWgjFCuwWnk0SmFXgxBVKLllJYcw36Fo9osrg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ERqVUCNtbs+MzLdhNdvgBbEjriNPD+yPZlBdTguGqhpz6nhLt0Q1qEpzAz1NpSC+U UJRC4z+qMWIPBsk+AkOOIm8AAYpM0t2iMy1oWJ3OisQC2mXpY2wDDNo7yMV5e5te0d qjeh/puZLvAbfjwaYR+VQcPxIdPfDGSMakwFr6s5tWOGEYAvliMRWa3/burDmWPvc7 aWJsFVAKeOPJP3JgMiUv3mLaItpjObrdvpYggJrl1DzHKdWgxWFIST81ZsBDj5ZBo1 W7KIlck3OGfLXlCXHkzatU6xx1VGcNbZ0Nmx360SlZWcm1LWhyjcrTQcRMDnsD7Y7D NJYRI+1Iq4ldg== Date: Thu, 30 Jan 2025 17:20:04 -0600 From: Rob Herring To: Florent Tomasin Cc: Vinod Koul , Krzysztof Kozlowski , Conor Dooley , Boris Brezillon , Steven Price , Liviu Dudau , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sumit Semwal , Benjamin Gaignard , Brian Starkey , John Stultz , "T . J . Mercier" , Christian =?iso-8859-1?Q?K=F6nig?= , Matthias Brugger , AngeloGioacchino Del Regno , Yong Wu , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, nd@arm.com, Akash Goel Subject: Re: [RFC PATCH 1/5] dt-bindings: dma: Add CMA Heap bindings Message-ID: <20250130232004.GA1818629-robh@kernel.org> References: <771534be8dfa2a3bdc3876502752f518224b9298.1738228114.git.florent.tomasin@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <771534be8dfa2a3bdc3876502752f518224b9298.1738228114.git.florent.tomasin@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250130_152007_425943_D6179392 X-CRM114-Status: GOOD ( 12.59 ) 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 Thu, Jan 30, 2025 at 01:08:57PM +0000, Florent Tomasin wrote: > Introduce a CMA Heap dt-binding allowing custom > CMA heap registrations. > > * Note to the reviewers: > The patch was used for the development of the protected mode > feature in Panthor CSF kernel driver and is not initially thought > to land in the Linux kernel. It is mostly relevant if someone > wants to reproduce the environment of testing. Please, raise > interest if you think the patch has value in the Linux kernel. Why would panthor need CMA, it has an MMU. In any case, I agree with Maxime that this is redundant. Rob