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 static inline void pcibios_penalize_isa_irq(int irq, int active)
  35 {
  36         /* We don't do dynamic PCI IRQ allocation */
  37 }
  38
  39 /*
  40  * The PCI address space does equal the physical memory address space.
  41  * The networking and block device layers use this boolean for bounce
  42  * buffer decisions.
  43  */
  44 #define PCI_DMA_BUS_IS_PHYS     (1)
  45
  46 #ifdef CONFIG_PCI
  47 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
  48                                         enum pci_dma_burst_strategy *strat,
  49                                         unsigned long *strategy_parameter)
  50 {
  51         *strat = PCI_DMA_BURST_INFINITY;
  52         *strategy_parameter = ~0UL;
  53 }
  54 #endif
  55
  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
  60 /*
  61  * Dummy implementation; always return 0.
  62  */
  63 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  64 {
  65         return 0;
  66 }
  67
  68 #endif /* __KERNEL__ */
  69
  70 #endif