author: Stefano Stabellini <stefano.stabellini@xilinx.com> 2020-07-10 15:34:18 -0700
committer: Juergen Gross <jgross@suse.com> 2020-08-04 07:43:17 +0200
commit: ae4f0a17ee591c15efbee87746290d22aea81617
parent: 8b1e868f66076490189a36d984fcce286cdd6295
Commit Summary:
Diffstat:
1 file changed, 2 insertions, 5 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 5fbadd07819b..89a775948a02 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -52,8 +52,6 @@ static unsigned long xen_io_tlb_nslabs;
* Quick lookup value of the bus address of the IOTLB.
*/
-static u64 start_dma_addr;
-
/*
* Both of these functions should avoid XEN_PFN_PHYS because phys_addr_t
* can be 32bit when dma_addr_t is 64bit leading to a loss in
@@ -241,7 +239,6 @@ retry:
m_ret = XEN_SWIOTLB_EFIXUP;
goto error;
}
- start_dma_addr = xen_virt_to_bus(xen_io_tlb_start);
if (early) {
if (swiotlb_init_with_tbl(xen_io_tlb_start, xen_io_tlb_nslabs,
verbose))
@@ -392,8 +389,8 @@ static dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
*/
trace_swiotlb_bounced(dev, dev_addr, size, swiotlb_force);
- map = swiotlb_tbl_map_single(dev, start_dma_addr, phys,
- size, size, dir, attrs);
+ map = swiotlb_tbl_map_single(dev, virt_to_phys(xen_io_tlb_start),
+ phys, size, size, dir, attrs);
if (map == (phys_addr_t)DMA_MAPPING_ERROR)
return DMA_MAPPING_ERROR;