linux-kernel - Re: [PATCH v6 0/6] Fix support of dw-edma HDMA NATIVE IP in remote setup

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Date:   Tue, 21 Nov 2023 11:56:29 +0530
From:   Manivannan Sadhasivam <mani@...nel.org>
To:     Kory Maincent <kory.maincent@...tlin.com>
Cc:     Manivannan Sadhasivam <mani@...nel.org>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Serge Semin <fancer.lancer@...il.com>,
        Vinod Koul <vkoul@...nel.org>,
        Cai Huoqing <cai.huoqing@...ux.dev>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        Herve Codina <herve.codina@...tlin.com>
Subject: Re: [PATCH v6 0/6] Fix support of dw-edma HDMA NATIVE IP in remote
 setup

On Fri, Nov 17, 2023 at 11:03:48AM +0100, Kory Maincent wrote:
> This patch series fix the support of dw-edma HDMA NATIVE IP.
> I can only test it in remote HDMA IP setup with single dma transfer, but
> with these fixes it works properly.
> 
> Few fixes has also been added for eDMA version. Similarly to HDMA I have
> tested only eDMA in remote setup.
> 

Just out of curiosity, can you share how you are setting EDMA_MF_HDMA_NATIVE?

- Mani

> Changes in v2:
> - Update comments and fix typos.
> - Removed patches that tackle hypothetical bug and then were not pertinent.
> - Add the similar HDMA race condition in remote setup fix to eDMA IP driver.
> 
> Changes in v3:
> - Fix comment style.
> - Split a patch in two to differ bug fix and simple harmless typo.
> 
> Changes in v4:
> - Update patch git commit message.
> - Link to v3: https://lore.kernel.org/r/20231011-b4-feature_hdma_mainline-v3-0-24ee0c979c6f@bootlin.com
> 
> Changes in v5:
> - No change
> - Rebase to mainline 6.7-rc1
> - Link to v4: https://lore.kernel.org/r/20231011-b4-feature_hdma_mainline-v4-0-43d417b93138@bootlin.com
> 
> Changes in v6:
> - Fix several commit messages and comments.
> - Link to v5: https://lore.kernel.org/r/20231114-b4-feature_hdma_mainline-v5-0-7bc86d83c6f7@bootlin.com
> 
> Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
> ---
> Kory Maincent (6):
>       dmaengine: dw-edma: Fix the ch_count hdma callback
>       dmaengine: dw-edma: Fix wrong interrupt bit set for HDMA
>       dmaengine: dw-edma: HDMA_V0_REMOTEL_STOP_INT_EN typo fix
>       dmaengine: dw-edma: Add HDMA remote interrupt configuration
>       dmaengine: dw-edma: HDMA: Add sync read before starting the DMA transfer in remote setup
>       dmaengine: dw-edma: eDMA: Add sync read before starting the DMA transfer in remote setup
> 
>  drivers/dma/dw-edma/dw-edma-v0-core.c | 17 +++++++++++++++
>  drivers/dma/dw-edma/dw-hdma-v0-core.c | 39 +++++++++++++++++++++++------------
>  drivers/dma/dw-edma/dw-hdma-v0-regs.h |  2 +-
>  3 files changed, 44 insertions(+), 14 deletions(-)
> ---
> base-commit: b85ea95d086471afb4ad062012a4d73cd328fa86
> change-id: 20231011-b4-feature_hdma_mainline-b6c57f8e3b5d
> 
> Best regards,
> -- 
> Köry Maincent, Bootlin
> Embedded Linux and kernel engineering
> https://bootlin.com
> 

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