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f5e706ad SR |
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 | |
f5e706ad SR |
13 | |
14 | #define PCIBIOS_MIN_IO 0UL | |
15 | #define PCIBIOS_MIN_MEM 0UL | |
16 | ||
17 | #define PCI_IRQ_NONE 0xffffffff | |
18 | ||
f5e706ad SR |
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 | /* 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 | ||
f5e706ad SR |
35 | /* pci_unmap_{single,page} is not a nop, thus... */ |
36 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ | |
37 | dma_addr_t ADDR_NAME; | |
38 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ | |
39 | __u32 LEN_NAME; | |
40 | #define pci_unmap_addr(PTR, ADDR_NAME) \ | |
41 | ((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) \ | |
45 | ((PTR)->LEN_NAME) | |
46 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ | |
47 | (((PTR)->LEN_NAME) = (VAL)) | |
48 | ||
f5e706ad SR |
49 | /* PCI IOMMU mapping bypass support. */ |
50 | ||
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. | |
54 | */ | |
55 | #define PCI64_REQUIRED_MASK (~(dma64_addr_t)0) | |
56 | #define PCI64_ADDR_BASE 0xfffc000000000000UL | |
57 | ||
f5e706ad SR |
58 | #ifdef CONFIG_PCI |
59 | static inline void pci_dma_burst_advice(struct pci_dev *pdev, | |
60 | enum pci_dma_burst_strategy *strat, | |
61 | unsigned long *strategy_parameter) | |
62 | { | |
63 | unsigned long cacheline_size; | |
64 | u8 byte; | |
65 | ||
66 | pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); | |
67 | if (byte == 0) | |
68 | cacheline_size = 1024; | |
69 | else | |
70 | cacheline_size = (int) byte * 4; | |
71 | ||
72 | *strat = PCI_DMA_BURST_BOUNDARY; | |
73 | *strategy_parameter = cacheline_size; | |
74 | } | |
75 | #endif | |
76 | ||
77 | /* Return the index of the PCI controller for device PDEV. */ | |
78 | ||
79 | extern int pci_domain_nr(struct pci_bus *bus); | |
80 | static inline int pci_proc_domain(struct pci_bus *bus) | |
81 | { | |
82 | return 1; | |
83 | } | |
84 | ||
85 | /* Platform support for /proc/bus/pci/X/Y mmap()s. */ | |
86 | ||
87 | #define HAVE_PCI_MMAP | |
88 | #define HAVE_ARCH_PCI_GET_UNMAPPED_AREA | |
89 | #define get_pci_unmapped_area get_fb_unmapped_area | |
90 | ||
91 | extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, | |
92 | enum pci_mmap_state mmap_state, | |
93 | int write_combine); | |
94 | ||
95 | extern void | |
96 | pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, | |
97 | struct resource *res); | |
98 | ||
99 | extern void | |
100 | pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, | |
101 | struct pci_bus_region *region); | |
102 | ||
f5e706ad SR |
103 | static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) |
104 | { | |
105 | return PCI_IRQ_NONE; | |
106 | } | |
107 | ||
108 | struct device_node; | |
109 | extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev); | |
110 | ||
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__ */ | |
116 | ||
117 | #endif /* __SPARC64_PCI_H */ |