arch/x86/include/asm/pci_32.h

   1 #ifndef _ASM_X86_PCI_32_H
   2 #define _ASM_X86_PCI_32_H
   3
   4
   5 #ifdef __KERNEL__
   6
   7
   8 /* Dynamic DMA mapping stuff.
   9  * i386 has everything mapped statically.
  10  */
  11
  12 struct pci_dev;
  13
  14 /* The PCI address space does equal the physical memory
  15  * address space.  The networking and block device layers use
  16  * this boolean for bounce buffer decisions.
  17  */
  18 #define PCI_DMA_BUS_IS_PHYS     (1)
  19
  20 /* pci_unmap_{page,single} is a nop so... */
  21 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)       dma_addr_t ADDR_NAME[0];
  22 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) unsigned LEN_NAME[0];
  23 #define pci_unmap_addr(PTR, ADDR_NAME)  sizeof((PTR)->ADDR_NAME)
  24 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
  25         do { break; } while (pci_unmap_addr(PTR, ADDR_NAME))
  26 #define pci_unmap_len(PTR, LEN_NAME)            sizeof((PTR)->LEN_NAME)
  27 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
  28         do { break; } while (pci_unmap_len(PTR, LEN_NAME))
  29
  30
  31 #endif /* __KERNEL__ */
  32
  33
  34 #endif /* _ASM_X86_PCI_32_H */