pci.h 2.1 KB

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  1. #ifndef ASMARM_PCI_H
  2. #define ASMARM_PCI_H
  3. #ifdef __KERNEL__
  4. #include <asm-generic/pci-dma-compat.h>
  5. #include <asm-generic/pci-bridge.h>
  6. #include <asm/mach/pci.h> /* for pci_sys_data */
  7. extern unsigned long pcibios_min_io;
  8. #define PCIBIOS_MIN_IO pcibios_min_io
  9. extern unsigned long pcibios_min_mem;
  10. #define PCIBIOS_MIN_MEM pcibios_min_mem
  11. static inline int pcibios_assign_all_busses(void)
  12. {
  13. return pci_has_flag(PCI_REASSIGN_ALL_RSRC);
  14. }
  15. #ifdef CONFIG_PCI_DOMAINS
  16. static inline int pci_domain_nr(struct pci_bus *bus)
  17. {
  18. struct pci_sys_data *root = bus->sysdata;
  19. return root->domain;
  20. }
  21. static inline int pci_proc_domain(struct pci_bus *bus)
  22. {
  23. return pci_domain_nr(bus);
  24. }
  25. #endif /* CONFIG_PCI_DOMAINS */
  26. #ifdef CONFIG_PCI_HOST_ITE8152
  27. /* ITE bridge requires setting latency timer to avoid early bus access
  28. termination by PIC bus mater devices
  29. */
  30. extern void pcibios_set_master(struct pci_dev *dev);
  31. #else
  32. static inline void pcibios_set_master(struct pci_dev *dev)
  33. {
  34. /* No special bus mastering setup handling */
  35. }
  36. #endif
  37. static inline void pcibios_penalize_isa_irq(int irq, int active)
  38. {
  39. /* We don't do dynamic PCI IRQ allocation */
  40. }
  41. /*
  42. * The PCI address space does equal the physical memory address space.
  43. * The networking and block device layers use this boolean for bounce
  44. * buffer decisions.
  45. */
  46. #define PCI_DMA_BUS_IS_PHYS (1)
  47. #ifdef CONFIG_PCI
  48. static inline void pci_dma_burst_advice(struct pci_dev *pdev,
  49. enum pci_dma_burst_strategy *strat,
  50. unsigned long *strategy_parameter)
  51. {
  52. *strat = PCI_DMA_BURST_INFINITY;
  53. *strategy_parameter = ~0UL;
  54. }
  55. #endif
  56. #define HAVE_PCI_MMAP
  57. extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
  58. enum pci_mmap_state mmap_state, int write_combine);
  59. extern void
  60. pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
  61. struct resource *res);
  62. extern void
  63. pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
  64. struct pci_bus_region *region);
  65. /*
  66. * Dummy implementation; always return 0.
  67. */
  68. static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  69. {
  70. return 0;
  71. }
  72. #endif /* __KERNEL__ */
  73. #endif