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Merge branch 'stable/for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb

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Pull swiotlb updates from Konrad Rzeszutek Wilk:
 "Two tiny implementations of the DMA API for callback in ARM (for Xen)"

* 'stable/for-linus-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
  swiotlb-xen: implement xen_swiotlb_get_sgtable callback
  swiotlb-xen: implement xen_swiotlb_dma_mmap callback
This commit is contained in:
Linus Torvalds 2017-03-07 10:23:17 -08:00
commit 8c2c8ed8b8
3 changed files with 60 additions and 0 deletions
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11
include/xen/swiotlb-xen.h
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@ -2,6 +2,7 @@
#define __LINUX_SWIOTLB_XEN_H
#include <linux/dma-direction.h>
#include <linux/scatterlist.h>
#include <linux/swiotlb.h>
extern int xen_swiotlb_init(int verbose, bool early);
@ -55,4 +56,14 @@ 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);
extern int
xen_swiotlb_get_sgtable(struct device *dev, struct sg_table *sgt,
void *cpu_addr, dma_addr_t handle, size_t size,
unsigned long attrs);
#endif /* __LINUX_SWIOTLB_XEN_H */