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1da177e4 LT |
1 | #ifndef __i386_PCI_H |
2 | #define __i386_PCI_H | |
3 | ||
4 | #include <linux/config.h> | |
5 | ||
6 | #ifdef __KERNEL__ | |
7 | #include <linux/mm.h> /* for struct page */ | |
8 | ||
9 | /* Can be used to override the logic in pci_scan_bus for skipping | |
10 | already-configured bus numbers - to be used for buggy BIOSes | |
11 | or architectures with incomplete PCI setup by the loader */ | |
12 | ||
13 | #ifdef CONFIG_PCI | |
14 | extern unsigned int pcibios_assign_all_busses(void); | |
15 | #else | |
16 | #define pcibios_assign_all_busses() 0 | |
17 | #endif | |
18 | #define pcibios_scan_all_fns(a, b) 0 | |
19 | ||
20 | extern unsigned long pci_mem_start; | |
21 | #define PCIBIOS_MIN_IO 0x1000 | |
22 | #define PCIBIOS_MIN_MEM (pci_mem_start) | |
23 | ||
24 | #define PCIBIOS_MIN_CARDBUS_IO 0x4000 | |
25 | ||
26 | void pcibios_config_init(void); | |
27 | struct pci_bus * pcibios_scan_root(int bus); | |
28 | ||
29 | void pcibios_set_master(struct pci_dev *dev); | |
30 | void pcibios_penalize_isa_irq(int irq); | |
31 | struct irq_routing_table *pcibios_get_irq_routing_table(void); | |
32 | int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); | |
33 | ||
34 | /* Dynamic DMA mapping stuff. | |
35 | * i386 has everything mapped statically. | |
36 | */ | |
37 | ||
38 | #include <linux/types.h> | |
39 | #include <linux/slab.h> | |
40 | #include <asm/scatterlist.h> | |
41 | #include <linux/string.h> | |
42 | #include <asm/io.h> | |
43 | ||
44 | struct pci_dev; | |
45 | ||
46 | /* The PCI address space does equal the physical memory | |
47 | * address space. The networking and block device layers use | |
48 | * this boolean for bounce buffer decisions. | |
49 | */ | |
50 | #define PCI_DMA_BUS_IS_PHYS (1) | |
51 | ||
52 | /* pci_unmap_{page,single} is a nop so... */ | |
53 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) | |
54 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) | |
55 | #define pci_unmap_addr(PTR, ADDR_NAME) (0) | |
56 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) | |
57 | #define pci_unmap_len(PTR, LEN_NAME) (0) | |
58 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) | |
59 | ||
60 | /* This is always fine. */ | |
61 | #define pci_dac_dma_supported(pci_dev, mask) (1) | |
62 | ||
63 | static inline dma64_addr_t | |
64 | pci_dac_page_to_dma(struct pci_dev *pdev, struct page *page, unsigned long offset, int direction) | |
65 | { | |
66 | return ((dma64_addr_t) page_to_phys(page) + | |
67 | (dma64_addr_t) offset); | |
68 | } | |
69 | ||
70 | static inline struct page * | |
71 | pci_dac_dma_to_page(struct pci_dev *pdev, dma64_addr_t dma_addr) | |
72 | { | |
73 | return pfn_to_page(dma_addr >> PAGE_SHIFT); | |
74 | } | |
75 | ||
76 | static inline unsigned long | |
77 | pci_dac_dma_to_offset(struct pci_dev *pdev, dma64_addr_t dma_addr) | |
78 | { | |
79 | return (dma_addr & ~PAGE_MASK); | |
80 | } | |
81 | ||
82 | static inline void | |
83 | pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction) | |
84 | { | |
85 | } | |
86 | ||
87 | static inline void | |
88 | pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction) | |
89 | { | |
90 | flush_write_buffers(); | |
91 | } | |
92 | ||
93 | #define HAVE_PCI_MMAP | |
94 | extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, | |
95 | enum pci_mmap_state mmap_state, int write_combine); | |
96 | ||
97 | ||
98 | static inline void pcibios_add_platform_entries(struct pci_dev *dev) | |
99 | { | |
100 | } | |
101 | ||
102 | #endif /* __KERNEL__ */ | |
103 | ||
104 | /* implement the pci_ DMA API in terms of the generic device dma_ one */ | |
105 | #include <asm-generic/pci-dma-compat.h> | |
106 | ||
107 | /* generic pci stuff */ | |
108 | #include <asm-generic/pci.h> | |
109 | ||
110 | #endif /* __i386_PCI_H */ |