1 #ifndef __SPARC64_PCI_H
2 #define __SPARC64_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 /* The PCI address space does not equal the physical memory
20 * address space. The networking and block device layers use
21 * this boolean for bounce buffer decisions.
22 */
23 #define PCI_DMA_BUS_IS_PHYS (0)
24
25 /* PCI IOMMU mapping bypass support. */
26
27 /* PCI 64-bit addressing works for all slots on all controller
28 * types on sparc64. However, it requires that the device
29 * can drive enough of the 64 bits.
30 */
31 #define PCI64_REQUIRED_MASK (~(u64)0)
32 #define PCI64_ADDR_BASE 0xfffc000000000000UL
33
34 #ifdef CONFIG_PCI
pci_dma_burst_advice(struct pci_dev * pdev,enum pci_dma_burst_strategy * strat,unsigned long * strategy_parameter)35 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
36 enum pci_dma_burst_strategy *strat,
37 unsigned long *strategy_parameter)
38 {
39 unsigned long cacheline_size;
40 u8 byte;
41
42 pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
43 if (byte == 0)
44 cacheline_size = 1024;
45 else
46 cacheline_size = (int) byte * 4;
47
48 *strat = PCI_DMA_BURST_BOUNDARY;
49 *strategy_parameter = cacheline_size;
50 }
51 #endif
52
53 /* Return the index of the PCI controller for device PDEV. */
54
55 int pci_domain_nr(struct pci_bus *bus);
pci_proc_domain(struct pci_bus * bus)56 static inline int pci_proc_domain(struct pci_bus *bus)
57 {
58 return 1;
59 }
60
61 /* Platform support for /proc/bus/pci/X/Y mmap()s. */
62
63 #define HAVE_PCI_MMAP
64 #define HAVE_ARCH_PCI_GET_UNMAPPED_AREA
65 #define get_pci_unmapped_area get_fb_unmapped_area
66
67 int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
68 enum pci_mmap_state mmap_state,
69 int write_combine);
70
pci_get_legacy_ide_irq(struct pci_dev * dev,int channel)71 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
72 {
73 return PCI_IRQ_NONE;
74 }
75
76 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
77 void pci_resource_to_user(const struct pci_dev *dev, int bar,
78 const struct resource *rsrc,
79 resource_size_t *start, resource_size_t *end);
80 #endif /* __KERNEL__ */
81
82 #endif /* __SPARC64_PCI_H */
83