| Subject | [PATCH 19 of 38] x86: add arch specific version of the swiotlb virt<->bus<->virt functions | Date | Thu, 13 Nov 2008 11:10:17 -0800 | From | Jeremy Fitzhardinge <> |
| |
From: Ian Campbell <ian.campbell@citrix.com>
These are to be used later and contain the default implementation.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> --- arch/x86/kernel/pci-swiotlb_64.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c --- a/arch/x86/kernel/pci-swiotlb_64.c +++ b/arch/x86/kernel/pci-swiotlb_64.c @@ -23,6 +23,16 @@ return (void *)__get_free_pages(GFP_DMA | __GFP_NOWARN, order); } +unsigned long swiotlb_virt_to_bus(volatile void *address) +{ + return virt_to_bus(address); +} + +void * swiotlb_bus_to_virt(unsigned long address) +{ + return bus_to_virt(address); +} + static dma_addr_t swiotlb_map_single_phys(struct device *hwdev, phys_addr_t paddr, size_t size, int direction)
|