include/asm-cris/pci.h

   1 #ifndef __ASM_CRIS_PCI_H
   2 #define __ASM_CRIS_PCI_H
   3
   4 #include <linux/config.h>
   5
   6 #ifdef __KERNEL__
   7 #include <linux/mm.h>           /* for struct page */
   8
   9 /* Can be used to override the logic in pci_scan_bus for skipping
  10    already-configured bus numbers - to be used for buggy BIOSes
  11    or architectures with incomplete PCI setup by the loader */
  12
  13 #define pcibios_assign_all_busses(void) 1
  14
  15 extern unsigned long pci_mem_start;
  16 #define PCIBIOS_MIN_IO          0x1000
  17 #define PCIBIOS_MIN_MEM         0x10000000
  18
  19 #define PCIBIOS_MIN_CARDBUS_IO  0x4000
  20
  21 void pcibios_config_init(void);
  22 struct pci_bus * pcibios_scan_root(int bus);
  23 int pcibios_assign_resources(void);
  24
  25 void pcibios_set_master(struct pci_dev *dev);
  26 void pcibios_penalize_isa_irq(int irq);
  27 struct irq_routing_table *pcibios_get_irq_routing_table(void);
  28 int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
  29
  30 /* Dynamic DMA mapping stuff.
  31  * i386 has everything mapped statically.
  32  */
  33
  34 #include <linux/types.h>
  35 #include <linux/slab.h>
  36 #include <asm/scatterlist.h>
  37 #include <linux/string.h>
  38 #include <asm/io.h>
  39
  40 struct pci_dev;
  41
  42 /* The PCI address space does equal the physical memory
  43  * address space.  The networking and block device layers use
  44  * this boolean for bounce buffer decisions.
  45  */
  46 #define PCI_DMA_BUS_IS_PHYS     (1)
  47
  48 /* pci_unmap_{page,single} is a nop so... */
  49 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
  50 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
  51 #define pci_unmap_addr(PTR, ADDR_NAME)          (0)
  52 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
  53 #define pci_unmap_len(PTR, LEN_NAME)            (0)
  54 #define pci_unmap_len_set(PTR, LEN_NAME, VAL)   do { } while (0)
  55
  56 /* This is always fine. */
  57 #define pci_dac_dma_supported(pci_dev, mask)    (1)
  58
  59 static inline dma64_addr_t
  60 pci_dac_page_to_dma(struct pci_dev *pdev, struct page *page, unsigned long offset, int direction)
  61 {
  62         return ((dma64_addr_t) page_to_phys(page) +
  63                 (dma64_addr_t) offset);
  64 }
  65
  66 static inline struct page *
  67 pci_dac_dma_to_page(struct pci_dev *pdev, dma64_addr_t dma_addr)
  68 {
  69         return pfn_to_page(dma_addr >> PAGE_SHIFT);
  70 }
  71
  72 static inline unsigned long
  73 pci_dac_dma_to_offset(struct pci_dev *pdev, dma64_addr_t dma_addr)
  74 {
  75         return (dma_addr & ~PAGE_MASK);
  76 }
  77
  78 static inline void
  79 pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
  80 {
  81 }
  82
  83 static inline void
  84 pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
  85 {
  86 }
  87
  88 #define HAVE_PCI_MMAP
  89 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
  90                                enum pci_mmap_state mmap_state, int write_combine);
  91
  92
  93 static inline void pcibios_add_platform_entries(struct pci_dev *dev)
  94 {
  95 }
  96
  97 #endif /* __KERNEL__ */
  98
  99 /* implement the pci_ DMA API in terms of the generic device dma_ one */
 100 #include <asm-generic/pci-dma-compat.h>
 101
 102 /* generic pci stuff */
 103 #include <asm-generic/pci.h>
 104
 105 #endif /* __ASM_CRIS_PCI_H */