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
   7 #include <asm/mach/pci.h> /* for pci_sys_data */
   8 #include <mach/hardware.h> /* for PCIBIOS_MIN_* */
   9
  10 #ifdef CONFIG_PCI_DOMAINS
  11 static inline int pci_domain_nr(struct pci_bus *bus)
  12 {
  13         struct pci_sys_data *root = bus->sysdata;
  14
  15         return root->domain;
  16 }
  17
  18 static inline int pci_proc_domain(struct pci_bus *bus)
  19 {
  20         return pci_domain_nr(bus);
  21 }
  22 #endif /* CONFIG_PCI_DOMAINS */
  23
  24 #ifdef CONFIG_PCI_HOST_ITE8152
  25 /* ITE bridge requires setting latency timer to avoid early bus access
  26    termination by PIC bus mater devices
  27 */
  28 extern void pcibios_set_master(struct pci_dev *dev);
  29 #else
  30 static inline void pcibios_set_master(struct pci_dev *dev)
  31 {
  32         /* No special bus mastering setup handling */
  33 }
  34 #endif
  35
  36 static inline void pcibios_penalize_isa_irq(int irq, int active)
  37 {
  38         /* We don't do dynamic PCI IRQ allocation */
  39 }
  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
  48 #ifdef CONFIG_PCI
  49 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
  50                                         enum pci_dma_burst_strategy *strat,
  51                                         unsigned long *strategy_parameter)
  52 {
  53         *strat = PCI_DMA_BURST_INFINITY;
  54         *strategy_parameter = ~0UL;
  55 }
  56 #endif
  57
  58 #define HAVE_PCI_MMAP
  59 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
  60                                enum pci_mmap_state mmap_state, int write_combine);
  61
  62 extern void
  63 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
  64                          struct resource *res);
  65
  66 extern void
  67 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
  68                         struct pci_bus_region *region);
  69
  70 /*
  71  * Dummy implementation; always return 0.
  72  */
  73 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  74 {
  75         return 0;
  76 }
  77
  78 #endif /* __KERNEL__ */
  79
  80 #endif