linux-kernel - Re: [PATCH] iommu: Remove unused IOMMU_SYS_CACHE

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Date:   Fri, 03 Jul 2020 22:21:52 +0530
From:   Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
To:     Will Deacon <will@...nel.org>
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        kernel-team@...roid.com, Robin Murphy <robin.murphy@....com>,
        "Isaac J. Manjarres" <isaacm@...eaurora.org>,
        Joerg Roedel <joro@...tes.org>, Christoph Hellwig <hch@....de>,
        Rob Clark <robdclark@...il.com>
Subject: Re: [PATCH] iommu: Remove unused IOMMU_SYS_CACHE_ONLY flag

On 2020-07-03 21:55, Will Deacon wrote:
> The IOMMU_SYS_CACHE_ONLY flag was never exposed via the DMA API and
> has no in-tree users. Remove it.
> 
> Cc: Robin Murphy <robin.murphy@....com>
> Cc: "Isaac J. Manjarres" <isaacm@...eaurora.org>
> Cc: Joerg Roedel <joro@...tes.org>
> Cc: Christoph Hellwig <hch@....de>
> Cc: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
> Cc: Rob Clark <robdclark@...il.com>
> Signed-off-by: Will Deacon <will@...nel.org>
> ---
> 
> As discussed in [1], sounds like this should be a domain attribute 
> anyway
> when it's needed by the GPU.
> 
> [1]
> https://lore.kernel.org/r/CAF6AEGsCROVTsi2R7_aUkmH9Luoc_guMR0w0KUJc2cEgpfj79w@mail.gmail.com
> 

Reviewed-by: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org

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