diff options
Diffstat (limited to 'arch/x86/include/asm/pci_32.h')
-rw-r--r-- | arch/x86/include/asm/pci_32.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pci_32.h b/arch/x86/include/asm/pci_32.h new file mode 100644 index 00000000000..6f1213a6ef4 --- /dev/null +++ b/arch/x86/include/asm/pci_32.h @@ -0,0 +1,34 @@ +#ifndef _ASM_X86_PCI_32_H +#define _ASM_X86_PCI_32_H + + +#ifdef __KERNEL__ + + +/* Dynamic DMA mapping stuff. + * i386 has everything mapped statically. + */ + +struct pci_dev; + +/* The PCI address space does equal the physical memory + * address space. The networking and block device layers use + * this boolean for bounce buffer decisions. + */ +#define PCI_DMA_BUS_IS_PHYS (1) + +/* pci_unmap_{page,single} is a nop so... */ +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME[0]; +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) unsigned LEN_NAME[0]; +#define pci_unmap_addr(PTR, ADDR_NAME) sizeof((PTR)->ADDR_NAME) +#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ + do { break; } while (pci_unmap_addr(PTR, ADDR_NAME)) +#define pci_unmap_len(PTR, LEN_NAME) sizeof((PTR)->LEN_NAME) +#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ + do { break; } while (pci_unmap_len(PTR, LEN_NAME)) + + +#endif /* __KERNEL__ */ + + +#endif /* _ASM_X86_PCI_32_H */ |