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
  10 extern unsigned long pcibios_min_io;
  11 #define PCIBIOS_MIN_IO pcibios_min_io
  12 extern unsigned long pcibios_min_mem;
  13 #define PCIBIOS_MIN_MEM pcibios_min_mem
  14
  15 static inline int pcibios_assign_all_busses(void)
  16 {
  17         return pci_has_flag(PCI_REASSIGN_ALL_RSRC);
  18 }
  19
  20 #ifdef CONFIG_PCI_DOMAINS
  21 static inline int pci_domain_nr(struct pci_bus *bus)
  22 {
  23         struct pci_sys_data *root = bus->sysdata;
  24
  25         return root->domain;
  26 }
  27
  28 static inline int pci_proc_domain(struct pci_bus *bus)
  29 {
  30         return pci_domain_nr(bus);
  31 }
  32 #endif /* CONFIG_PCI_DOMAINS */
  33
  34 #ifdef CONFIG_PCI_HOST_ITE8152
  35 /* ITE bridge requires setting latency timer to avoid early bus access
  36    termination by PIC bus mater devices
  37 */
  38 extern void pcibios_set_master(struct pci_dev *dev);
  39 #else
  40 static inline void pcibios_set_master(struct pci_dev *dev)
  41 {
  42         /* No special bus mastering setup handling */
  43 }
  44 #endif
  45
  46 static inline void pcibios_penalize_isa_irq(int irq, int active)
  47 {
  48         /* We don't do dynamic PCI IRQ allocation */
  49 }
  50
  51 /*
  52  * The PCI address space does equal the physical memory address space.
  53  * The networking and block device layers use this boolean for bounce
  54  * buffer decisions.
  55  */
  56 #define PCI_DMA_BUS_IS_PHYS     (1)
  57
  58 #ifdef CONFIG_PCI
  59 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
  60                                         enum pci_dma_burst_strategy *strat,
  61                                         unsigned long *strategy_parameter)
  62 {
  63         *strat = PCI_DMA_BURST_INFINITY;
  64         *strategy_parameter = ~0UL;
  65 }
  66 #endif
  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
  72 extern void
  73 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
  74                          struct resource *res);
  75
  76 extern void
  77 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
  78                         struct pci_bus_region *region);
  79
  80 /*
  81  * Dummy implementation; always return 0.
  82  */
  83 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  84 {
  85         return 0;
  86 }
  87
  88 #endif /* __KERNEL__ */
  89
  90 #endif