6 #include <linux/dma-mapping.h>
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 */
12 #define pcibios_assign_all_busses() 1
13 #define pcibios_scan_all_fns(a, b) 0
16 * A board can define one or more PCI channels that represent built-in (or
17 * external) PCI controllers.
20 struct pci_channel *next;
22 struct pci_ops *pci_ops;
23 struct resource *io_resource;
24 struct resource *mem_resource;
26 unsigned long io_offset;
27 unsigned long mem_offset;
29 unsigned long reg_base;
31 unsigned long io_map_base;
34 extern void register_pci_controller(struct pci_channel *hose);
36 extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM;
41 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
42 enum pci_mmap_state mmap_state, int write_combine);
43 extern void pcibios_set_master(struct pci_dev *dev);
45 static inline void pcibios_penalize_isa_irq(int irq, int active)
47 /* We don't do dynamic PCI IRQ allocation */
50 /* Dynamic DMA mapping stuff.
51 * SuperH has everything mapped statically like x86.
54 /* The PCI address space does equal the physical memory
55 * address space. The networking and block device layers use
56 * this boolean for bounce buffer decisions.
58 #define PCI_DMA_BUS_IS_PHYS (1)
60 #include <linux/types.h>
61 #include <linux/slab.h>
62 #include <asm/scatterlist.h>
63 #include <linux/string.h>
66 /* pci_unmap_{single,page} being a nop depends upon the
69 #ifdef CONFIG_SH_PCIDMA_NONCOHERENT
70 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
72 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
74 #define pci_unmap_addr(PTR, ADDR_NAME) \
76 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
77 (((PTR)->ADDR_NAME) = (VAL))
78 #define pci_unmap_len(PTR, LEN_NAME) \
80 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
81 (((PTR)->LEN_NAME) = (VAL))
83 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
84 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
85 #define pci_unmap_addr(PTR, ADDR_NAME) (0)
86 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
87 #define pci_unmap_len(PTR, LEN_NAME) (0)
88 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
92 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
93 enum pci_dma_burst_strategy *strat,
94 unsigned long *strategy_parameter)
96 *strat = PCI_DMA_BURST_INFINITY;
97 *strategy_parameter = ~0UL;
101 #ifdef CONFIG_SUPERH32
103 * If we're on an SH7751 or SH7780 PCI controller, PCI memory is mapped
104 * at the end of the address space in a special non-translatable area.
106 #define PCI_MEM_FIXED_START 0xfd000000
107 #define PCI_MEM_FIXED_END (PCI_MEM_FIXED_START + 0x01000000)
109 #define is_pci_memory_fixed_range(s, e) \
110 ((s) >= PCI_MEM_FIXED_START && (e) < PCI_MEM_FIXED_END)
112 #define is_pci_memory_fixed_range(s, e) (0)
115 /* Board-specific fixup routines. */
116 int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin);
118 extern void pcibios_resource_to_bus(struct pci_dev *dev,
119 struct pci_bus_region *region, struct resource *res);
121 extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
122 struct pci_bus_region *region);
124 static inline struct resource *
125 pcibios_select_root(struct pci_dev *pdev, struct resource *res)
127 struct resource *root = NULL;
129 if (res->flags & IORESOURCE_IO)
130 root = &ioport_resource;
131 if (res->flags & IORESOURCE_MEM)
132 root = &iomem_resource;
137 /* Chances are this interrupt is wired PC-style ... */
138 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
140 return channel ? 15 : 14;
143 /* generic DMA-mapping stuff */
144 #include <asm-generic/pci-dma-compat.h>
146 #endif /* __KERNEL__ */
147 #endif /* __ASM_SH_PCI_H */