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
pcibios_set_master(struct pci_dev * dev)19 static inline void pcibios_set_master(struct pci_dev *dev)
20 {
21 /* No special bus mastering setup handling */
22 }
23
pcibios_penalize_isa_irq(int irq,int active)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 /* 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.
32 */
33 #define PCI_DMA_BUS_IS_PHYS (0)
34
35 /* PCI IOMMU mapping bypass support. */
36
37 /* PCI 64-bit addressing works for all slots on all controller
38 * types on sparc64. However, it requires that the device
39 * can drive enough of the 64 bits.
40 */
41 #define PCI64_REQUIRED_MASK (~(u64)0)
42 #define PCI64_ADDR_BASE 0xfffc000000000000UL
43
44 #ifdef CONFIG_PCI
pci_dma_burst_advice(struct pci_dev * pdev,enum pci_dma_burst_strategy * strat,unsigned long * strategy_parameter)45 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
46 enum pci_dma_burst_strategy *strat,
47 unsigned long *strategy_parameter)
48 {
49 unsigned long cacheline_size;
50 u8 byte;
51
52 pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
53 if (byte == 0)
54 cacheline_size = 1024;
55 else
56 cacheline_size = (int) byte * 4;
57
58 *strat = PCI_DMA_BURST_BOUNDARY;
59 *strategy_parameter = cacheline_size;
60 }
61 #endif
62
63 /* Return the index of the PCI controller for device PDEV. */
64
65 extern int pci_domain_nr(struct pci_bus *bus);
pci_proc_domain(struct pci_bus * bus)66 static inline int pci_proc_domain(struct pci_bus *bus)
67 {
68 return 1;
69 }
70
71 /* Platform support for /proc/bus/pci/X/Y mmap()s. */
72
73 #define HAVE_PCI_MMAP
74 #define HAVE_ARCH_PCI_GET_UNMAPPED_AREA
75 #define get_pci_unmapped_area get_fb_unmapped_area
76
77 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
78 enum pci_mmap_state mmap_state,
79 int write_combine);
80
81 extern void
82 pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
83 struct resource *res);
84
85 extern void
86 pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
87 struct pci_bus_region *region);
88
pci_get_legacy_ide_irq(struct pci_dev * dev,int channel)89 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
90 {
91 return PCI_IRQ_NONE;
92 }
93
94 struct device_node;
95 extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev);
96
97 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
98 extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
99 const struct resource *rsrc,
100 resource_size_t *start, resource_size_t *end);
101 #endif /* __KERNEL__ */
102
103 #endif /* __SPARC64_PCI_H */
104