From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A3C7F141987; Tue, 22 Oct 2024 05:33:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729575180; cv=none; b=V76IomGHp0BAycw1Elat3qoinq2YLGZaECk4A0N1OPFyJVMEDSh0WP5m2VUtKSZA14/5cbqH7QNLstHSvCzUlpj/QHgIK3rkB1S+XbBoOAJF2FpIfMK4wrK+4y7jyfxX0Y7h42NLfBYAScBEXKlyTT8mVf+0+li5COcuuS/HJ9E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729575180; c=relaxed/simple; bh=+AXgSFYf9fdnrGNfDlq51aKCvpEV7kB6VjY09xwkUmk=; h=From:To:Cc:In-Reply-To:References:Subject:Message-Id:Date: MIME-Version:Content-Type; b=dg3OIigbueQfezBx7GIBHZ3M4LYsirTxJIpzUdPF6yL2oJsYC63QU4JOx3u2bmgvJJAQGI5Hpbdo0ELksJWaLCtovKMdKJCeXMzK4qDUWZPSPnDgMP3H5wFU2kfaws37lW4yWySUvTIMW13YhY/LcsmjG5oRRazwxS+0JPq+14E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HjuNVGeQ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="HjuNVGeQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A08A9C4CEC3; Tue, 22 Oct 2024 05:32:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729575180; bh=+AXgSFYf9fdnrGNfDlq51aKCvpEV7kB6VjY09xwkUmk=; h=From:To:Cc:In-Reply-To:References:Subject:Date:From; b=HjuNVGeQZysJqJjvaKZIug4hYiox80wcdeGnF0bZvrNWkdIGo12QQx8xVXJ+NvEVs 6da2iye9KGPFGXBP21DAEGsL7uDmLsZZHrWeN1UNVCbl8oSPi3osHSQwoUjctYbp5L YDENOR3bgthFy+eQRro1u5edvviTN1dpgQA3PrU3WqJGXo/IWJ+BIXi+uizPLznWg/ itHmCWHdGBA3VtOI+6ArH6aE5z6MEiIRv+B25+fKXldrjNoPAqkiYAwfoeQz/zfEnb qWXilDDuxlXmOADPJvoIkU7f9AH8GQBc+aGKKnq4st1xIjYRFlyGgolz2CTKyBaONY p8YokfXdZuIUg== From: Vinod Koul To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue , Amelie Delaunay Cc: dmaengine@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org In-Reply-To: <20241016-dma3-mp25-updates-v3-0-8311fe6f228d@foss.st.com> References: <20241016-dma3-mp25-updates-v3-0-8311fe6f228d@foss.st.com> Subject: Re: (subset) [PATCH v3 0/9] STM32 DMA3 updates for STM32MP25 Message-Id: <172957517754.489113.8907734005204192905.b4-ty@kernel.org> Date: Tue, 22 Oct 2024 11:02:57 +0530 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: 7bit X-Mailer: b4 0.14.2 On Wed, 16 Oct 2024 14:39:52 +0200, Amelie Delaunay wrote: > The HW version of STM32 DMA3 inside STM32MP25 requires some tunings to > meet the needs of the interconnect. This series adds the linked list > refactoring feature to have optimal performance when addressing the > memory, and it adds the use of two new bits in the third cell specifying > the DMA transfer requirements: > - bit[16] to prevent packing/unpacking mode to avoid bytes loss in case > of interrupting an ongoing transfer (e.g. UART RX), > - bit[17] to prevent linked-list refactoring because some peripherals > (e.g. FMC ECC) require a one-shot transfer, they trigger the DMA only > once. > It also adds platform data to clamp the burst length on AXI port, > especially when it is interconnected to AXI3 bus, such as on STM32MP25. > Finally this series also contains STM32MP25 device tree updates, to add > DMA support on SPI, I2C, UART and apply the tunings introduced. > > [...] Applied, thanks! [1/9] dt-bindings: dma: stm32-dma3: prevent packing/unpacking mode commit: 689f05586e7ea620c8fc1066c067809e52ffc2f3 [2/9] dmaengine: stm32-dma3: prevent pack/unpack thanks to DT configuration commit: 12eb621e1abff65d89aeb4c92a4f3436225971d0 [3/9] dmaengine: stm32-dma3: refactor HW linked-list to optimize memory accesses commit: cb467c451163bacad4cbb7540ce7d731946f13f9 [4/9] dt-bindings: dma: stm32-dma3: prevent additional transfers commit: e18a9830233e739ae7045700232c53b4cb2e98eb [5/9] dmaengine: stm32-dma3: prevent LL refactoring thanks to DT configuration commit: 2ff0fb9474eefa7149c199fb3f79e54355a6c184 [6/9] dmaengine: stm32-dma3: clamp AXI burst using match data commit: e713468e7c104a0598a7ec31ab7ec0bec94a174d Best regards, -- ~Vinod