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 #ifdef CONFIG_PCI_HOST_ITE8152
  12 /* ITE bridge requires setting latency timer to avoid early bus access
  13    termination by PIC bus mater devices
  14 */
  15 extern void pcibios_set_master(struct pci_dev *dev);
  16 #else
  17 static inline void pcibios_set_master(struct pci_dev *dev)
  18 {
  19         /* No special bus mastering setup handling */
  20 }
  21 #endif
  22
  23 static inline void pcibios_penalize_isa_irq(int irq, int active)
  24 {
  25         /* We don't do dynamic PCI IRQ allocation */
  26 }
  27
  28 /*
  29  * The PCI address space does equal the physical memory address space.
  30  * The networking and block device layers use this boolean for bounce
  31  * buffer decisions.
  32  */
  33 #define PCI_DMA_BUS_IS_PHYS     (0)
  34
  35 /*
  36  * Whether pci_unmap_{single,page} is a nop depends upon the
  37  * configuration.
  38  */
  39 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)       dma_addr_t ADDR_NAME;
  40 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)         __u32 LEN_NAME;
  41 #define pci_unmap_addr(PTR, ADDR_NAME)          ((PTR)->ADDR_NAME)
  42 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL))
  43 #define pci_unmap_len(PTR, LEN_NAME)            ((PTR)->LEN_NAME)
  44 #define pci_unmap_len_set(PTR, LEN_NAME, VAL)   (((PTR)->LEN_NAME) = (VAL))
  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 extern void
  61 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
  62                          struct resource *res);
  63
  64 extern void
  65 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
  66                         struct pci_bus_region *region);
  67
  68 static inline struct resource *
  69 pcibios_select_root(struct pci_dev *pdev, struct resource *res)
  70 {
  71         struct resource *root = NULL;
  72
  73         if (res->flags & IORESOURCE_IO)
  74                 root = &ioport_resource;
  75         if (res->flags & IORESOURCE_MEM)
  76                 root = &iomem_resource;
  77
  78         return root;
  79 }
  80
  81 #endif /* __KERNEL__ */
  82
  83 #endif