From 61ca08c3220032dd88815b3465d56cb779258168 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Mon, 15 Oct 2012 10:19:44 -0700 Subject: 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 Signed-off-by: Konrad Rzeszutek Wilk --- include/linux/swiotlb.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux/swiotlb.h') 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, -- cgit v1.2.3