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| author | Ian Campbell <ian.campbell@citrix.com> | 2008-12-16 21:17:37 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-17 18:58:21 +0100 |
| commit | 1d32251e846ccbcf9d2da041dffd1199f94b2a3b (patch) | |
| tree | a218c00d0776f11b8f7c8d7eb6eaca8598f6868e /arch | |
| parent | x86: unify pci iommu setup and allow swiotlb to compile for 32 bit (diff) | |
| download | linux-1d32251e846ccbcf9d2da041dffd1199f94b2a3b.tar.xz linux-1d32251e846ccbcf9d2da041dffd1199f94b2a3b.zip | |
x86/swiotlb: add default phys<->bus conversion
Xen will override these later on.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/pci-swiotlb_64.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c index a991afea6700..93a8371f2c22 100644 --- a/arch/x86/kernel/pci-swiotlb_64.c +++ b/arch/x86/kernel/pci-swiotlb_64.c @@ -23,6 +23,16 @@ void *swiotlb_alloc(unsigned order, unsigned long nslabs) return (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN, order); } +dma_addr_t swiotlb_phys_to_bus(phys_addr_t paddr) +{ + return paddr; +} + +phys_addr_t swiotlb_bus_to_phys(dma_addr_t baddr) +{ + return baddr; +} + static dma_addr_t swiotlb_map_single_phys(struct device *hwdev, phys_addr_t paddr, size_t size, int direction) |