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 0x1000
22 #define PCIBIOS_MIN_MEM (pci_mem_start)
24 #define PCIBIOS_MIN_CARDBUS_IO 0x4000
26 void pcibios_config_init(void);
27 struct pci_bus * pcibios_scan_root(int bus);
29 void pcibios_set_master(struct pci_dev *dev);
30 void pcibios_penalize_isa_irq(int irq, int active);
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);
34 /* Dynamic DMA mapping stuff.
35 * i386 has everything mapped statically.
38 #include <linux/types.h>
39 #include <linux/slab.h>
40 #include <asm/scatterlist.h>
41 #include <linux/string.h>
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.
50 #define PCI_DMA_BUS_IS_PHYS (1)
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)
60 /* This is always fine. */
61 #define pci_dac_dma_supported(pci_dev, mask) (1)
63 static inline dma64_addr_t
64 pci_dac_page_to_dma(struct pci_dev *pdev, struct page *page, unsigned long offset, int direction)
66 return ((dma64_addr_t) page_to_phys(page) +
67 (dma64_addr_t) offset);
70 static inline struct page *
71 pci_dac_dma_to_page(struct pci_dev *pdev, dma64_addr_t dma_addr)
73 return pfn_to_page(dma_addr >> PAGE_SHIFT);
76 static inline unsigned long
77 pci_dac_dma_to_offset(struct pci_dev *pdev, dma64_addr_t dma_addr)
79 return (dma_addr & ~PAGE_MASK);
83 pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
88 pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
90 flush_write_buffers();
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);
98 static inline void pcibios_add_platform_entries(struct pci_dev *dev)
103 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
104 enum pci_dma_burst_strategy *strat,
105 unsigned long *strategy_parameter)
107 *strat = PCI_DMA_BURST_INFINITY;
108 *strategy_parameter = ~0UL;
112 #endif /* __KERNEL__ */
114 /* implement the pci_ DMA API in terms of the generic device dma_ one */
115 #include <asm-generic/pci-dma-compat.h>
117 /* generic pci stuff */
118 #include <asm-generic/pci.h>
120 #endif /* __i386_PCI_H */