diff options
Diffstat (limited to 'arch/mips/pci')
| -rw-r--r-- | arch/mips/pci/pci-ip27.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c index 0f09eafa5e3a..65b48d41a229 100644 --- a/arch/mips/pci/pci-ip27.c +++ b/arch/mips/pci/pci-ip27.c @@ -11,6 +11,7 @@ #include <linux/export.h> #include <linux/pci.h> #include <linux/smp.h> +#include <linux/dma-direct.h> #include <asm/sn/arch.h> #include <asm/pci/bridge.h> #include <asm/paccess.h> @@ -182,6 +183,19 @@ int pcibios_plat_dev_init(struct pci_dev *dev) return 0; } +dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr) +{ + struct pci_dev *pdev = to_pci_dev(dev); + struct bridge_controller *bc = BRIDGE_CONTROLLER(pdev->bus); + + return bc->baddr + paddr; +} + +phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr) +{ + return dma_addr & ~(0xffUL << 56); +} + /* * Device might live on a subordinate PCI bus. XXX Walk up the chain of buses * to find the slot number in sense of the bridge device register. |