1 #ifndef __SPARC64_PCI_H
2 #define __SPARC64_PCI_H
6 #include <linux/dma-mapping.h>
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.
12 #define pcibios_assign_all_busses() 0
14 #define PCIBIOS_MIN_IO 0UL
15 #define PCIBIOS_MIN_MEM 0UL
17 #define PCI_IRQ_NONE 0xffffffff
19 static inline void pcibios_set_master(struct pci_dev *dev)
21 /* No special bus mastering setup handling */
24 static inline void pcibios_penalize_isa_irq(int irq, int active)
26 /* We don't do dynamic PCI IRQ allocation */
29 /* The PCI address space does not equal the physical memory
30 * address space. The networking and block device layers use
31 * this boolean for bounce buffer decisions.
33 #define PCI_DMA_BUS_IS_PHYS (0)
35 /* pci_unmap_{single,page} is not a nop, thus... */
36 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
38 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
40 #define pci_unmap_addr(PTR, ADDR_NAME) \
42 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
43 (((PTR)->ADDR_NAME) = (VAL))
44 #define pci_unmap_len(PTR, LEN_NAME) \
46 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
47 (((PTR)->LEN_NAME) = (VAL))
49 /* PCI IOMMU mapping bypass support. */
51 /* PCI 64-bit addressing works for all slots on all controller
52 * types on sparc64. However, it requires that the device
53 * can drive enough of the 64 bits.
55 #define PCI64_REQUIRED_MASK (~(dma64_addr_t)0)
56 #define PCI64_ADDR_BASE 0xfffc000000000000UL
59 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
60 enum pci_dma_burst_strategy *strat,
61 unsigned long *strategy_parameter)
63 unsigned long cacheline_size;
66 pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
68 cacheline_size = 1024;
70 cacheline_size = (int) byte * 4;
72 *strat = PCI_DMA_BURST_BOUNDARY;
73 *strategy_parameter = cacheline_size;
77 /* Return the index of the PCI controller for device PDEV. */
79 extern int pci_domain_nr(struct pci_bus *bus);
80 static inline int pci_proc_domain(struct pci_bus *bus)
85 /* Platform support for /proc/bus/pci/X/Y mmap()s. */
88 #define HAVE_ARCH_PCI_GET_UNMAPPED_AREA
89 #define get_pci_unmapped_area get_fb_unmapped_area
91 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
92 enum pci_mmap_state mmap_state,
96 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
97 struct resource *res);
100 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
101 struct pci_bus_region *region);
103 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
109 extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev);
111 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
112 extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
113 const struct resource *rsrc,
114 resource_size_t *start, resource_size_t *end);
115 #endif /* __KERNEL__ */
117 #endif /* __SPARC64_PCI_H */