diff options
| author |   Alexander Duyck <alexander.h.duyck@intel.com> | 2012-10-15 10:19:49 -0700 |
|---|---|---|
| committer |   Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-10-30 09:32:07 -0400 |
| commit | fbfda893eb570bbe9e9ad9128b6e9cf2a1e48c87 (patch) | |
| tree | c79485f1cec2861db3f86852629c19d32fda30bd /include/linux/swiotlb.h | |
| parent | swiotlb: Use physical addresses for swiotlb_tbl_unmap_single (diff) | |
| download | linux-dev-fbfda893eb570bbe9e9ad9128b6e9cf2a1e48c87.tar.xz linux-dev-fbfda893eb570bbe9e9ad9128b6e9cf2a1e48c87.zip | |
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 'include/linux/swiotlb.h')
| -rw-r--r-- | include/linux/swiotlb.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h index 291643c6b88b..e0ac98fd81a9 100644 --- a/include/linux/swiotlb.h +++ b/include/linux/swiotlb.h @@ -47,7 +47,8 @@ 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, +extern void swiotlb_tbl_sync_single(struct device *hwdev, + phys_addr_t tlb_addr, size_t size, enum dma_data_direction dir, enum dma_sync_target target); |