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1da177e4 LT |
1 | #ifndef __i386_PCI_H |
2 | #define __i386_PCI_H | |
3 | ||
1da177e4 LT |
4 | |
5 | #ifdef __KERNEL__ | |
6 | #include <linux/mm.h> /* for struct page */ | |
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 | #ifdef CONFIG_PCI | |
13 | extern unsigned int pcibios_assign_all_busses(void); | |
14 | #else | |
15 | #define pcibios_assign_all_busses() 0 | |
16 | #endif | |
17 | #define pcibios_scan_all_fns(a, b) 0 | |
18 | ||
19 | extern unsigned long pci_mem_start; | |
2ba84684 | 20 | #define PCIBIOS_MIN_IO 0x1000 |
1da177e4 LT |
21 | #define PCIBIOS_MIN_MEM (pci_mem_start) |
22 | ||
2ba84684 LT |
23 | #define PCIBIOS_MIN_CARDBUS_IO 0x4000 |
24 | ||
1da177e4 LT |
25 | void pcibios_config_init(void); |
26 | struct pci_bus * pcibios_scan_root(int bus); | |
27 | ||
28 | void pcibios_set_master(struct pci_dev *dev); | |
c9c3e457 | 29 | void pcibios_penalize_isa_irq(int irq, int active); |
1da177e4 LT |
30 | struct irq_routing_table *pcibios_get_irq_routing_table(void); |
31 | int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); | |
32 | ||
33 | /* Dynamic DMA mapping stuff. | |
34 | * i386 has everything mapped statically. | |
35 | */ | |
36 | ||
37 | #include <linux/types.h> | |
38 | #include <linux/slab.h> | |
39 | #include <asm/scatterlist.h> | |
40 | #include <linux/string.h> | |
41 | #include <asm/io.h> | |
42 | ||
43 | struct pci_dev; | |
44 | ||
45 | /* The PCI address space does equal the physical memory | |
46 | * address space. The networking and block device layers use | |
47 | * this boolean for bounce buffer decisions. | |
48 | */ | |
49 | #define PCI_DMA_BUS_IS_PHYS (1) | |
50 | ||
51 | /* pci_unmap_{page,single} is a nop so... */ | |
52 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) | |
53 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) | |
54 | #define pci_unmap_addr(PTR, ADDR_NAME) (0) | |
55 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) | |
56 | #define pci_unmap_len(PTR, LEN_NAME) (0) | |
57 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) | |
58 | ||
59 | /* This is always fine. */ | |
60 | #define pci_dac_dma_supported(pci_dev, mask) (1) | |
61 | ||
62 | static inline dma64_addr_t | |
63 | pci_dac_page_to_dma(struct pci_dev *pdev, struct page *page, unsigned long offset, int direction) | |
64 | { | |
65 | return ((dma64_addr_t) page_to_phys(page) + | |
66 | (dma64_addr_t) offset); | |
67 | } | |
68 | ||
69 | static inline struct page * | |
70 | pci_dac_dma_to_page(struct pci_dev *pdev, dma64_addr_t dma_addr) | |
71 | { | |
72 | return pfn_to_page(dma_addr >> PAGE_SHIFT); | |
73 | } | |
74 | ||
75 | static inline unsigned long | |
76 | pci_dac_dma_to_offset(struct pci_dev *pdev, dma64_addr_t dma_addr) | |
77 | { | |
78 | return (dma_addr & ~PAGE_MASK); | |
79 | } | |
80 | ||
81 | static inline void | |
82 | pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction) | |
83 | { | |
84 | } | |
85 | ||
86 | static inline void | |
87 | pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction) | |
88 | { | |
89 | flush_write_buffers(); | |
90 | } | |
91 | ||
92 | #define HAVE_PCI_MMAP | |
93 | extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, | |
94 | enum pci_mmap_state mmap_state, int write_combine); | |
95 | ||
96 | ||
97 | static inline void pcibios_add_platform_entries(struct pci_dev *dev) | |
98 | { | |
99 | } | |
100 | ||
bb4a61b6 | 101 | #ifdef CONFIG_PCI |
e24c2d96 DM |
102 | static inline void pci_dma_burst_advice(struct pci_dev *pdev, |
103 | enum pci_dma_burst_strategy *strat, | |
104 | unsigned long *strategy_parameter) | |
105 | { | |
106 | *strat = PCI_DMA_BURST_INFINITY; | |
107 | *strategy_parameter = ~0UL; | |
108 | } | |
bb4a61b6 | 109 | #endif |
e24c2d96 | 110 | |
1da177e4 LT |
111 | #endif /* __KERNEL__ */ |
112 | ||
113 | /* implement the pci_ DMA API in terms of the generic device dma_ one */ | |
114 | #include <asm-generic/pci-dma-compat.h> | |
115 | ||
116 | /* generic pci stuff */ | |
117 | #include <asm-generic/pci.h> | |
118 | ||
119 | #endif /* __i386_PCI_H */ |