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authorAlexander Duyck <alexander.h.duyck@intel.com>2012-10-15 21:19:44 +0400
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-10-30 17:32:07 +0400
commit61ca08c3220032dd88815b3465d56cb779258168 (patch)
treeb126015d4fd76ff1e4b936097877e734aa19746b /include
parente05ed4d1fad9e730995abb08cb9bc3bffac5018b (diff)
downloadlinux-61ca08c3220032dd88815b3465d56cb779258168.tar.xz
swiotlb: Use physical addresses for swiotlb_tbl_unmap_single
This change makes it so that the unmap 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_unmap_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 'include')
-rw-r--r--include/linux/swiotlb.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 1995f3e04fed..291643c6b88b 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -43,7 +43,8 @@ extern phys_addr_t swiotlb_tbl_map_single(struct device *hwdev,
phys_addr_t phys, size_t size,
enum dma_data_direction dir);
-extern void swiotlb_tbl_unmap_single(struct device *hwdev, char *dma_addr,
+extern void swiotlb_tbl_unmap_single(struct device *hwdev,
+ phys_addr_t tlb_addr,
size_t size, enum dma_data_direction dir);
extern void swiotlb_tbl_sync_single(struct device *hwdev, char *dma_addr,