arch/arm/include/asm/pci.h

   1 #ifndef ASMARM_PCI_H
   2 #define ASMARM_PCI_H
   3
   4 #ifdef __KERNEL__
   5 #include <asm-generic/pci-dma-compat.h>
   6 #include <asm-generic/pci-bridge.h>
   7
   8 #include <asm/mach/pci.h> /* for pci_sys_data */
   9 #include <mach/hardware.h> /* for PCIBIOS_MIN_* */
  10
  11 static inline int pcibios_assign_all_busses(void)
  12 {
  13         return pci_has_flag(PCI_REASSIGN_ALL_RSRC);
  14 }
  15
  16 #ifdef CONFIG_PCI_DOMAINS
  17 static inline int pci_domain_nr(struct pci_bus *bus)
  18 {
  19         struct pci_sys_data *root = bus->sysdata;
  20
  21         return root->domain;
  22 }
  23
  24 static inline int pci_proc_domain(struct pci_bus *bus)
  25 {
  26         return pci_domain_nr(bus);
  27 }
  28 #endif /* CONFIG_PCI_DOMAINS */
  29
  30 #ifdef CONFIG_PCI_HOST_ITE8152
  31 /* ITE bridge requires setting latency timer to avoid early bus access
  32    termination by PIC bus mater devices
  33 */
  34 extern void pcibios_set_master(struct pci_dev *dev);
  35 #else
  36 static inline void pcibios_set_master(struct pci_dev *dev)
  37 {
  38         /* No special bus mastering setup handling */
  39 }
  40 #endif
  41
  42 static inline void pcibios_penalize_isa_irq(int irq, int active)
  43 {
  44         /* We don't do dynamic PCI IRQ allocation */
  45 }
  46
  47 /*
  48  * The PCI address space does equal the physical memory address space.
  49  * The networking and block device layers use this boolean for bounce
  50  * buffer decisions.
  51  */
  52 #define PCI_DMA_BUS_IS_PHYS     (1)
  53
  54 #ifdef CONFIG_PCI
  55 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
  56                                         enum pci_dma_burst_strategy *strat,
  57                                         unsigned long *strategy_parameter)
  58 {
  59         *strat = PCI_DMA_BURST_INFINITY;
  60         *strategy_parameter = ~0UL;
  61 }
  62 #endif
  63
  64 #define HAVE_PCI_MMAP
  65 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
  66                                enum pci_mmap_state mmap_state, int write_combine);
  67
  68 extern void
  69 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
  70                          struct resource *res);
  71
  72 extern void
  73 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
  74                         struct pci_bus_region *region);
  75
  76 /*
  77  * Dummy implementation; always return 0.
  78  */
  79 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  80 {
  81         return 0;
  82 }
  83
  84 #endif /* __KERNEL__ */
  85
  86 #endif