pci.h 2.8 KB

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  1. #ifndef __ASM_CRIS_PCI_H
  2. #define __ASM_CRIS_PCI_H
  3. #include <linux/config.h>
  4. #ifdef __KERNEL__
  5. #include <linux/mm.h> /* for struct page */
  6. /* Can be used to override the logic in pci_scan_bus for skipping
  7. already-configured bus numbers - to be used for buggy BIOSes
  8. or architectures with incomplete PCI setup by the loader */
  9. #define pcibios_assign_all_busses(void) 1
  10. extern unsigned long pci_mem_start;
  11. #define PCIBIOS_MIN_IO 0x1000
  12. #define PCIBIOS_MIN_MEM 0x10000000
  13. #define PCIBIOS_MIN_CARDBUS_IO 0x4000
  14. void pcibios_config_init(void);
  15. struct pci_bus * pcibios_scan_root(int bus);
  16. int pcibios_assign_resources(void);
  17. void pcibios_set_master(struct pci_dev *dev);
  18. void pcibios_penalize_isa_irq(int irq);
  19. struct irq_routing_table *pcibios_get_irq_routing_table(void);
  20. int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
  21. /* Dynamic DMA mapping stuff.
  22. * i386 has everything mapped statically.
  23. */
  24. #include <linux/types.h>
  25. #include <linux/slab.h>
  26. #include <asm/scatterlist.h>
  27. #include <linux/string.h>
  28. #include <asm/io.h>
  29. struct pci_dev;
  30. /* The PCI address space does equal the physical memory
  31. * address space. The networking and block device layers use
  32. * this boolean for bounce buffer decisions.
  33. */
  34. #define PCI_DMA_BUS_IS_PHYS (1)
  35. /* pci_unmap_{page,single} is a nop so... */
  36. #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
  37. #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
  38. #define pci_unmap_addr(PTR, ADDR_NAME) (0)
  39. #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
  40. #define pci_unmap_len(PTR, LEN_NAME) (0)
  41. #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
  42. /* This is always fine. */
  43. #define pci_dac_dma_supported(pci_dev, mask) (1)
  44. static inline dma64_addr_t
  45. pci_dac_page_to_dma(struct pci_dev *pdev, struct page *page, unsigned long offset, int direction)
  46. {
  47. return ((dma64_addr_t) page_to_phys(page) +
  48. (dma64_addr_t) offset);
  49. }
  50. static inline struct page *
  51. pci_dac_dma_to_page(struct pci_dev *pdev, dma64_addr_t dma_addr)
  52. {
  53. return pfn_to_page(dma_addr >> PAGE_SHIFT);
  54. }
  55. static inline unsigned long
  56. pci_dac_dma_to_offset(struct pci_dev *pdev, dma64_addr_t dma_addr)
  57. {
  58. return (dma_addr & ~PAGE_MASK);
  59. }
  60. static inline void
  61. pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
  62. {
  63. }
  64. static inline void
  65. pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
  66. {
  67. }
  68. #define HAVE_PCI_MMAP
  69. extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
  70. enum pci_mmap_state mmap_state, int write_combine);
  71. static inline void pcibios_add_platform_entries(struct pci_dev *dev)
  72. {
  73. }
  74. #endif /* __KERNEL__ */
  75. /* implement the pci_ DMA API in terms of the generic device dma_ one */
  76. #include <asm-generic/pci-dma-compat.h>
  77. /* generic pci stuff */
  78. #include <asm-generic/pci.h>
  79. #endif /* __ASM_CRIS_PCI_H */