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| 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 /drivers/xen/swiotlb-xen.c | |
| 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 'drivers/xen/swiotlb-xen.c')
| -rw-r--r-- | drivers/xen/swiotlb-xen.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 4cedc284b5df..af47e7594460 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; } |