From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 562783B2FCC; Fri, 18 Sep 2026 01:50:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789696208; cv=none; b=cXtsU8o1EK1Wu7tFtyNEniXw+RgMf2M1BNQllD2bIer/l9knumsop66TyhlExpoA+v/9I5KeHoKM7oOWHIZpvbUQNFVdg3vb6yq8NjUijyoad28O7XI/O/v4IUAXEKKBh3hIRl4Zmq6j02yqGPejYo3zwZy2uyRZsO7mZU/ui48= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789696208; c=relaxed/simple; bh=x+1tVwXpSU7bYwCOlibIFALsDLth7WpIMQl9PJhDdFI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=a8ZR43KPsfKYH+UmUEAqF4ps699GrGR2OCYwqgNX4JOrrFVZgUfeq2Xu8VhcCsnLqlXWqyok51HCqBxrRhMo7vUtcXQt/i3CZYJhrBAvmcpPQvLcijr8qZhmOoCQviaNYm83rdkGJ/u8LThN47KXYrS1G2jTaO0+qWT0Cb93vKA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=O2O1UsLK; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="O2O1UsLK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8507F1F008A3; Fri, 18 Sep 2026 01:50:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789696202; bh=gEUVOrbpBu1dM5VeWAospmgxWNDwIPpTDlXrM9WjyNA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=O2O1UsLKdNLUFOforAPxQ4Wu5uFgVSdTTqf7pRRB0BUTHdpAmsoH6Q9t8J21/mh+v /pSvB0k4D6d9F2ngOhfxC7jqbTbgi8rndWSgn+vw1Gn+Z8/z+0Y9rvyC5LrVrobljv NORI7hCoBgrWf/BSo2KO67qOyamaoOTtlIaq/JdbmFjJDUDIsYQI++OZTGQb9uwCSp 0uUQo21PxBiaFg84YWeXolC9zrwtXGwpOc1Smd+gIV9t8x2k91+8/cBFe0pyLTYaXA hohxs/GxF58dnUl6GsJcUPccNad0e4q47CXRdN244veQbsCNQP0KiPwL2mjhOnFmlB PiS6Wddk+Ku5g== From: Bjorn Andersson To: Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Xilin Wu Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3] arm64: dts: qcom: sc8280xp: Mark FastRPC context banks as dma-coherent Date: Thu, 17 Sep 2026 20:49:50 -0500 Message-ID: <178969618826.1582337.6658511312541652648.b4-ty@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260909-sc8280xp-fastrpc-dma-coherent-v3-1-d38184e8cf9d@radxa.com> References: <20260909-sc8280xp-fastrpc-dma-coherent-v3-1-d38184e8cf9d@radxa.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit On Wed, 09 Sep 2026 16:08:53 +0800, Xilin Wu wrote: > The FastRPC context banks are DMA-coherent on SC8280XP. Describe this in > the device tree so that the DMA API uses the appropriate coherency > attributes for their mappings. > > When FastRPC allocates shared buffers from the system DMA heap, the > missing property can cause intermittent failures while loading DSP > libraries. Both fastrpc_test and the QAIRT platform validator can fail > with DSP loader errors such as "mmap hdrs failed" and "bad address". > > [...] Applied, thanks! [1/1] arm64: dts: qcom: sc8280xp: Mark FastRPC context banks as dma-coherent commit: 3ca6796122d931ed3923884b019b0a32c26cade6 Best regards, -- Bjorn Andersson