linux-kernel - Re: [PATCH] iommu/io-pgtable-arm-v7s: Need dma-sync while there is no QUIRK_NO

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Message-ID: <20170927145645.rsxgsmoti7x3xpri@8bytes.org>
Date:   Wed, 27 Sep 2017 16:56:46 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Yong Wu <yong.wu@...iatek.com>
Cc:     Robin Murphy <robin.murphy@....com>,
        Will Deacon <will.deacon@....com>,
        linux-mediatek@...ts.infradead.org, srv_heupstream@...iatek.com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        iommu@...ts.linux-foundation.org
Subject: Re: [PATCH] iommu/io-pgtable-arm-v7s: Need dma-sync while there is
 no QUIRK_NO_DMA

On Mon, Sep 25, 2017 at 05:28:47PM +0800, Yong Wu wrote:
> Fix the commit 81b3c2521844 ("iommu/io-pgtable: Introduce explicit
> coherency"). If there is no IO_PGTABLE_QUIRK_NO_DMA, we should call
> dma_sync_single_for_device for cache synchronization.
> 
> Signed-off-by: Yong Wu <yong.wu@...iatek.com>

Applied to iommu/fixes, thanks.