4 #include <linux/config.h>
7 #include <linux/mm.h> /* for struct page */
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 */
14 extern unsigned int pcibios_assign_all_busses(void);
16 #define pcibios_assign_all_busses() 0
18 #define pcibios_scan_all_fns(a, b) 0
20 extern unsigned long pci_mem_start
;
21 #define PCIBIOS_MIN_IO 0x4000
22 #define PCIBIOS_MIN_MEM (pci_mem_start)
24 void pcibios_config_init(void);
25 struct pci_bus
* pcibios_scan_root(int bus
);
27 void pcibios_set_master(struct pci_dev
*dev
);
28 void pcibios_penalize_isa_irq(int irq
, int active
);
29 struct irq_routing_table
*pcibios_get_irq_routing_table(void);
30 int pcibios_set_irq_routing(struct pci_dev
*dev
, int pin
, int irq
);
32 /* Dynamic DMA mapping stuff.
33 * i386 has everything mapped statically.
36 #include <linux/types.h>
37 #include <linux/slab.h>
38 #include <asm/scatterlist.h>
39 #include <linux/string.h>
44 /* The PCI address space does equal the physical memory
45 * address space. The networking and block device layers use
46 * this boolean for bounce buffer decisions.
48 #define PCI_DMA_BUS_IS_PHYS (1)
50 /* pci_unmap_{page,single} is a nop so... */
51 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
52 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
53 #define pci_unmap_addr(PTR, ADDR_NAME) (0)
54 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
55 #define pci_unmap_len(PTR, LEN_NAME) (0)
56 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
58 /* This is always fine. */
59 #define pci_dac_dma_supported(pci_dev, mask) (1)
61 static inline dma64_addr_t
62 pci_dac_page_to_dma(struct pci_dev
*pdev
, struct page
*page
, unsigned long offset
, int direction
)
64 return ((dma64_addr_t
) page_to_phys(page
) +
65 (dma64_addr_t
) offset
);
68 static inline struct page
*
69 pci_dac_dma_to_page(struct pci_dev
*pdev
, dma64_addr_t dma_addr
)
71 return pfn_to_page(dma_addr
>> PAGE_SHIFT
);
74 static inline unsigned long
75 pci_dac_dma_to_offset(struct pci_dev
*pdev
, dma64_addr_t dma_addr
)
77 return (dma_addr
& ~PAGE_MASK
);
81 pci_dac_dma_sync_single_for_cpu(struct pci_dev
*pdev
, dma64_addr_t dma_addr
, size_t len
, int direction
)
86 pci_dac_dma_sync_single_for_device(struct pci_dev
*pdev
, dma64_addr_t dma_addr
, size_t len
, int direction
)
88 flush_write_buffers();
92 extern int pci_mmap_page_range(struct pci_dev
*dev
, struct vm_area_struct
*vma
,
93 enum pci_mmap_state mmap_state
, int write_combine
);
96 static inline void pcibios_add_platform_entries(struct pci_dev
*dev
)
101 static inline void pci_dma_burst_advice(struct pci_dev
*pdev
,
102 enum pci_dma_burst_strategy
*strat
,
103 unsigned long *strategy_parameter
)
105 *strat
= PCI_DMA_BURST_INFINITY
;
106 *strategy_parameter
= ~0UL;
110 #endif /* __KERNEL__ */
112 /* implement the pci_ DMA API in terms of the generic device dma_ one */
113 #include <asm-generic/pci-dma-compat.h>
115 /* generic pci stuff */
116 #include <asm-generic/pci.h>
118 #endif /* __i386_PCI_H */