From: Vinod Koul <vkoul@kernel.org>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Amelie Delaunay <amelie.delaunay@foss.st.com>
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
Subject: Re: (subset) [PATCH v3 0/9] STM32 DMA3 updates for STM32MP25
Date: Tue, 22 Oct 2024 11:02:57 +0530 [thread overview]
Message-ID: <172957517754.489113.8907734005204192905.b4-ty@kernel.org> (raw)
In-Reply-To: <20241016-dma3-mp25-updates-v3-0-8311fe6f228d@foss.st.com>
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
next prev parent reply other threads:[~2024-10-22 5:33 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-16 12:39 Amelie Delaunay
2024-10-16 12:39 ` [PATCH v3 1/9] dt-bindings: dma: stm32-dma3: prevent packing/unpacking mode Amelie Delaunay
2024-10-16 12:39 ` [PATCH v3 2/9] dmaengine: stm32-dma3: prevent pack/unpack thanks to DT configuration Amelie Delaunay
2024-10-16 12:39 ` [PATCH v3 3/9] dmaengine: stm32-dma3: refactor HW linked-list to optimize memory accesses Amelie Delaunay
2024-10-16 12:39 ` [PATCH v3 4/9] dt-bindings: dma: stm32-dma3: prevent additional transfers Amelie Delaunay
2024-10-16 17:33 ` Rob Herring (Arm)
2024-10-16 12:39 ` [PATCH v3 5/9] dmaengine: stm32-dma3: prevent LL refactoring thanks to DT configuration Amelie Delaunay
2024-10-16 12:39 ` [PATCH v3 6/9] dmaengine: stm32-dma3: clamp AXI burst using match data Amelie Delaunay
2024-10-16 12:39 ` [PATCH v3 7/9] arm64: dts: st: add DMA support on U(S)ART instances of stm32mp25 Amelie Delaunay
2024-10-16 12:40 ` [PATCH v3 8/9] arm64: dts: st: add DMA support on I2C " Amelie Delaunay
2024-10-16 12:40 ` [PATCH v3 9/9] arm64: dts: st: add DMA support on SPI " Amelie Delaunay
2024-10-22 5:32 ` Vinod Koul [this message]
2024-10-29 16:09 ` [PATCH v3 0/9] STM32 DMA3 updates for STM32MP25 Alexandre TORGUE
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