linux-kernel - Re: [PATCH v5 0/5] PCI: dwc: Add support for integrating HDMA with DWC EP driver

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Date: Sat, 18 May 2024 02:19:33 +0900
From: Krzysztof Wilczyński <kw@...ux.com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc: Jingoo Han <jingoohan1@...il.com>,
	Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
	Marek Vasut <marek.vasut+renesas@...il.com>,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Serge Semin <fancer.lancer@...il.com>, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
	linux-arm-msm@...r.kernel.org, mhi@...ts.linux.dev,
	Siddharth Vadapalli <s-vadapalli@...com>,
	Frank Li <Frank.Li@....com>,
	Mrinmay Sarkar <quic_msarkar@...cinc.com>
Subject: Re: [PATCH v5 0/5] PCI: dwc: Add support for integrating HDMA with
 DWC EP driver

Hello,

> This series adds support for integrating HDMA with the DWC EP driver.
> 
> Hyper DMA (HDMA) is already supported by the dw-edma dmaengine driver.
> Unlike it's predecessor Embedded DMA (eDMA), HDMA supports only unroll
> mapping format and doesn't support auto detecting the read/write channels.
> 
> Hence, this series modifies the existing eDMA code to work with HDMA by
> honoring the platform supplied mapping format and read/write channels
> count.
> 
> The platform drivers making use of HDMA should pass the EDMA_MF_HDMA_NATIVE
> flag and provide channels count. In this series, HDMA support is added for
> the Qcom SA8775P SoC and the DMA support in enabled in MHI EPF driver as
> well.
> 
> Testing
> -------
> 
> Tested on Qualcomm SA8775P Ride board.
> 
> Dependency
> ----------
> 
> Depends on:
> https://lore.kernel.org/dmaengine/20240129-b4-feature_hdma_mainline-v7-0-8e8c1acb7a46@bootlin.com/
> https://lore.kernel.org/all/1701432377-16899-1-git-send-email-quic_msarkar@quicinc.com/
> 
> NOTE: I've taken over this series from Mrinmay who posted v1:
> https://lore.kernel.org/linux-pci/1705669223-5655-1-git-send-email-quic_msarkar@quicinc.com/

Applied to qcom, thank you!

[01/05] PCI: dwc: Refactor dw_pcie_edma_find_chip() API
        https://git.kernel.org/pci/pci/c/51d8f92534df
[02/05] PCI: dwc: Skip finding eDMA channels count for HDMA platforms
        https://git.kernel.org/pci/pci/c/f9eeafd85ef6
[03/05] PCI: dwc: Pass the eDMA mapping format flag directly from glue drivers
        https://git.kernel.org/pci/pci/c/6823373030c8
[04/05] PCI: qcom-ep: Add HDMA support for SA8775P SoC
        https://git.kernel.org/pci/pci/c/c5a9a5eebb3b
[05/05] PCI: epf-mhi: Enable HDMA for SA8775P SoC
        https://git.kernel.org/pci/pci/c/fd745ddc8edc

	Krzysztof