include/asm-arm/pci.h

   1 #ifndef ASMARM_PCI_H
   2 #define ASMARM_PCI_H
   3
   4 #ifdef __KERNEL__
   5 #include <linux/config.h>
   6 #include <asm-generic/pci-dma-compat.h>
   7
   8 #include <asm/hardware.h> /* for PCIBIOS_MIN_* */
   9
  10 #define pcibios_scan_all_fns(a, b)      0
  11
  12 static inline void pcibios_set_master(struct pci_dev *dev)
  13 {
  14         /* No special bus mastering setup handling */
  15 }
  16
  17 static inline void pcibios_penalize_isa_irq(int irq, int active)
  18 {
  19         /* We don't do dynamic PCI IRQ allocation */
  20 }
  21
  22 /*
  23  * The PCI address space does equal the physical memory address space.
  24  * The networking and block device layers use this boolean for bounce
  25  * buffer decisions.
  26  */
  27 #define PCI_DMA_BUS_IS_PHYS     (0)
  28
  29 /*
  30  * We don't support DAC DMA cycles.
  31  */
  32 #define pci_dac_dma_supported(pci_dev, mask)    (0)
  33
  34 /*
  35  * Whether pci_unmap_{single,page} is a nop depends upon the
  36  * configuration.
  37  */
  38 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)       dma_addr_t ADDR_NAME;
  39 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)         __u32 LEN_NAME;
  40 #define pci_unmap_addr(PTR, ADDR_NAME)          ((PTR)->ADDR_NAME)
  41 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL))
  42 #define pci_unmap_len(PTR, LEN_NAME)            ((PTR)->LEN_NAME)
  43 #define pci_unmap_len_set(PTR, LEN_NAME, VAL)   (((PTR)->LEN_NAME) = (VAL))
  44
  45 #ifdef CONFIG_PCI
  46 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
  47                                         enum pci_dma_burst_strategy *strat,
  48                                         unsigned long *strategy_parameter)
  49 {
  50         *strat = PCI_DMA_BURST_INFINITY;
  51         *strategy_parameter = ~0UL;
  52 }
  53 #endif
  54
  55 #define HAVE_PCI_MMAP
  56 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
  57                                enum pci_mmap_state mmap_state, int write_combine);
  58
  59 extern void
  60 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
  61                          struct resource *res);
  62
  63 extern void
  64 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
  65                         struct pci_bus_region *region);
  66
  67 static inline struct resource *
  68 pcibios_select_root(struct pci_dev *pdev, struct resource *res)
  69 {
  70         struct resource *root = NULL;
  71
  72         if (res->flags & IORESOURCE_IO)
  73                 root = &ioport_resource;
  74         if (res->flags & IORESOURCE_MEM)
  75                 root = &iomem_resource;
  76
  77         return root;
  78 }
  79
  80 static inline void pcibios_add_platform_entries(struct pci_dev *dev)
  81 {
  82 }
  83
  84 #endif /* __KERNEL__ */
  85
  86 #endif