include/asm-cris/pci.h

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