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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2017-02-07 19:58:02 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-10-05 09:41:48 +0200
commit079c03f4a915da1279604f88d6c07bf70427ddbc (patch)
treed601e78761beb83f7f8d74a79c4d255fdcbb9700 /include
parent27323cb81eae618e68e4dea1345090c37dee5485 (diff)
swiotlb-xen: implement xen_swiotlb_dma_mmap callback
commit 7e91c7df29b5e196de3dc6f086c8937973bd0b88 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/xen/swiotlb-xen.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h
index 8b2eb93ae8ba..fab4fb9c6442 100644
--- a/include/xen/swiotlb-xen.h
+++ b/include/xen/swiotlb-xen.h
@@ -58,4 +58,9 @@ xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
extern int
xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask);
+
+extern int
+xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma,
+ void *cpu_addr, dma_addr_t dma_addr, size_t size,
+ unsigned long attrs);
#endif /* __LINUX_SWIOTLB_XEN_H */