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authorAlexander Duyck <alexander.h.duyck@intel.com>2012-10-15 10:19:49 -0700
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-10-30 09:32:07 -0400
commitfbfda893eb570bbe9e9ad9128b6e9cf2a1e48c87 (patch)
treec79485f1cec2861db3f86852629c19d32fda30bd /drivers/xen
parent61ca08c3220032dd88815b3465d56cb779258168 (diff)
downloadop-kernel-dev-fbfda893eb570bbe9e9ad9128b6e9cf2a1e48c87.zip
op-kernel-dev-fbfda893eb570bbe9e9ad9128b6e9cf2a1e48c87.tar.gz
swiotlb: Use physical addresses instead of virtual in swiotlb_tbl_sync_single
This change makes it so that the sync functionality also uses physical addresses. This helps to further reduce the use of virt_to_phys and phys_to_virt functions. In order to clarify things since we now have 2 physical addresses in use inside of swiotlb_tbl_sync_single I am renaming phys to orig_addr, and dma_addr to tlb_addr. This way is should be clear that orig_addr is contained within io_orig_addr and tlb_addr is an address within the io_tlb_addr buffer. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/swiotlb-xen.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 4cedc28..af47e75 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -433,8 +433,7 @@ xen_swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr,
/* NOTE: We use dev_addr here, not paddr! */
if (is_xen_swiotlb_buffer(dev_addr)) {
- swiotlb_tbl_sync_single(hwdev, phys_to_virt(paddr), size, dir,
- target);
+ swiotlb_tbl_sync_single(hwdev, paddr, size, dir, target);
return;
}
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