include/asm-arm/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/hardware.h> /* for PCIBIOS_MIN_* */
   8
   9 #define pcibios_scan_all_fns(a, b)      0
  10
  11 static inline void pcibios_set_master(struct pci_dev *dev)
  12 {
  13         /* No special bus mastering setup handling */
  14 }
  15
  16 static inline void pcibios_penalize_isa_irq(int irq, int active)
  17 {
  18         /* We don't do dynamic PCI IRQ allocation */
  19 }
  20
  21 /*
  22  * The PCI address space does equal the physical memory address space.
  23  * The networking and block device layers use this boolean for bounce
  24  * buffer decisions.
  25  */
  26 #define PCI_DMA_BUS_IS_PHYS     (0)
  27
  28 /*
  29  * Whether pci_unmap_{single,page} is a nop depends upon the
  30  * configuration.
  31  */
  32 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)       dma_addr_t ADDR_NAME;
  33 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)         __u32 LEN_NAME;
  34 #define pci_unmap_addr(PTR, ADDR_NAME)          ((PTR)->ADDR_NAME)
  35 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL))
  36 #define pci_unmap_len(PTR, LEN_NAME)            ((PTR)->LEN_NAME)
  37 #define pci_unmap_len_set(PTR, LEN_NAME, VAL)   (((PTR)->LEN_NAME) = (VAL))
  38
  39 #ifdef CONFIG_PCI
  40 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
  41                                         enum pci_dma_burst_strategy *strat,
  42                                         unsigned long *strategy_parameter)
  43 {
  44         *strat = PCI_DMA_BURST_INFINITY;
  45         *strategy_parameter = ~0UL;
  46 }
  47 #endif
  48
  49 #define HAVE_PCI_MMAP
  50 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
  51                                enum pci_mmap_state mmap_state, int write_combine);
  52
  53 extern void
  54 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
  55                          struct resource *res);
  56
  57 extern void
  58 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
  59                         struct pci_bus_region *region);
  60
  61 static inline struct resource *
  62 pcibios_select_root(struct pci_dev *pdev, struct resource *res)
  63 {
  64         struct resource *root = NULL;
  65
  66         if (res->flags & IORESOURCE_IO)
  67                 root = &ioport_resource;
  68         if (res->flags & IORESOURCE_MEM)
  69                 root = &iomem_resource;
  70
  71         return root;
  72 }
  73
  74 #endif /* __KERNEL__ */
  75
  76 #endif