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swiotlb-xen: implement xen_swiotlb_dma_mmap callback

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This function creates userspace mapping for the DMA-coherent memory.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Oleksandr Dmytryshyn <oleksandr.dmytryshyn@globallogic.com>
Signed-off-by: Andrii Anisov <andrii_anisov@epam.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
This commit is contained in:
Stefano Stabellini
2017-02-07 19:58:02 +02:00
committed by Konrad Rzeszutek Wilk
parent 602d9858f0
commit 7e91c7df29
3 changed files with 25 additions and 0 deletions
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arch/arm/xen/mm.c
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@@ -198,6 +198,7 @@ static struct dma_map_ops xen_swiotlb_dma_ops = {
.unmap_page = xen_swiotlb_unmap_page,
.dma_supported = xen_swiotlb_dma_supported,
.set_dma_mask = xen_swiotlb_set_dma_mask,
.mmap = xen_swiotlb_dma_mmap,
};
int __init xen_mm_init(void)