arch/sparc/include/asm/pci_32.h

   1 #ifndef __SPARC_PCI_H
   2 #define __SPARC_PCI_H
   3
   4 #ifdef __KERNEL__
   5
   6 #include <linux/dma-mapping.h>
   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()     0
  13
  14 #define PCIBIOS_MIN_IO          0UL
  15 #define PCIBIOS_MIN_MEM         0UL
  16
  17 #define PCI_IRQ_NONE            0xffffffff
  18
  19 static inline void pcibios_set_master(struct pci_dev *dev)
  20 {
  21         /* No special bus mastering setup handling */
  22 }
  23
  24 static inline void pcibios_penalize_isa_irq(int irq, int active)
  25 {
  26         /* We don't do dynamic PCI IRQ allocation */
  27 }
  28
  29 /* Dynamic DMA mapping stuff.
  30  */
  31 #define PCI_DMA_BUS_IS_PHYS     (0)
  32
  33 struct pci_dev;
  34
  35 #ifdef CONFIG_PCI
  36 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
  37                                         enum pci_dma_burst_strategy *strat,
  38                                         unsigned long *strategy_parameter)
  39 {
  40         *strat = PCI_DMA_BURST_INFINITY;
  41         *strategy_parameter = ~0UL;
  42 }
  43 #endif
  44
  45 #endif /* __KERNEL__ */
  46
  47 #ifndef CONFIG_LEON_PCI
  48 /* generic pci stuff */
  49 #include <asm-generic/pci.h>
  50 #else
  51 /*
  52  * On LEON PCI Memory space is mapped 1:1 with physical address space.
  53  *
  54  * I/O space is located at low 64Kbytes in PCI I/O space. The I/O addresses
  55  * are converted into CPU addresses to virtual addresses that are mapped with
  56  * MMU to the PCI Host PCI I/O space window which are translated to the low
  57  * 64Kbytes by the Host controller.
  58  */
  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 int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  69 {
  70         return PCI_IRQ_NONE;
  71 }
  72 #endif
  73
  74 #endif /* __SPARC_PCI_H */