From mboxrd@z Thu Jan  1 00:00:00 1970
From: catalin.marinas@arm.com (Catalin Marinas)
Date: Fri, 7 Nov 2014 11:11:28 +0000
Subject: [PATCH v7 3/8] arm64: introduce is_device_dma_coherent
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References: <alpine.DEB.2.02.1410261621200.22875@kaball.uk.xensource.com>
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 <alpine.DEB.2.02.1411031101400.22875@kaball.uk.xensource.com>
 <20141105165646.GN32700@e104818-lin.cambridge.arm.com>
 <alpine.DEB.2.02.1411051757140.22875@kaball.uk.xensource.com>
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Message-ID: <20141107111126.GB21875@localhost>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Fri, Nov 07, 2014 at 11:05:25AM +0000, Catalin Marinas wrote:
> BTW, drivers/xen/swiotlb-xen.c needs something like:
> 
>         dma_addr_t dev_addr = xen_phys_to_bus(phys_to_dma(phys));
> 
> phys != bus address.

Wrong place, what I meant is when calling:

        xen_dma_unmap_page(hwdev, phys_to_dma(paddr), size, dir, attrs);

-- 
Catalin