diff options
Diffstat (limited to 'drivers/xen/swiotlb-xen.c')
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index a6f9ba85dc4b..f5c1af4ce9ab 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -303,6 +303,9 @@ xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size, */ flags &= ~(__GFP_DMA | __GFP_HIGHMEM); + /* Convert the size to actually allocated. */ + size = 1UL << (order + XEN_PAGE_SHIFT); + /* On ARM this function returns an ioremap'ped virtual address for * which virt_to_phys doesn't return the corresponding physical * address. In fact on ARM virt_to_phys only works for kernel direct @@ -351,6 +354,9 @@ xen_swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr, * physical address */ phys = xen_bus_to_phys(dev_addr); + /* Convert the size to actually allocated. */ + size = 1UL << (order + XEN_PAGE_SHIFT); + if (((dev_addr + size - 1 <= dma_mask)) || range_straddles_page_boundary(phys, size)) xen_destroy_contiguous_region(phys, order); @@ -662,7 +668,7 @@ xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma, return xen_get_dma_ops(dev)->mmap(dev, vma, cpu_addr, dma_addr, size, attrs); #endif - return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size); + return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size, attrs); } /* @@ -689,7 +695,7 @@ xen_swiotlb_get_sgtable(struct device *dev, struct sg_table *sgt, handle, size, attrs); } #endif - return dma_common_get_sgtable(dev, sgt, cpu_addr, handle, size); + return dma_common_get_sgtable(dev, sgt, cpu_addr, handle, size, attrs); } static int xen_swiotlb_mapping_error(struct device *dev, dma_addr_t dma_addr) |