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 int (*init)(struct pci_channel *chan);
21 struct pci_ops *pci_ops;
22 struct resource *io_resource;
23 struct resource *mem_resource;
27 unsigned long reg_base;
28 unsigned long io_base;
32 * Each board initializes this array and terminates it with a NULL entry.
34 extern struct pci_channel board_pci_channels[];
36 /* ugly as hell, but makes drivers/pci/setup-res.c compile and work */
37 #define __PCI_CHAN(bus) ((struct pci_channel *)bus->sysdata)
38 #define PCIBIOS_MIN_IO __PCI_CHAN(bus)->io_resource->start
39 #define PCIBIOS_MIN_MEM __PCI_CHAN(bus)->mem_resource->start
44 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
45 enum pci_mmap_state mmap_state, int write_combine);
46 extern void pcibios_set_master(struct pci_dev *dev);
48 static inline void pcibios_penalize_isa_irq(int irq, int active)
50 /* We don't do dynamic PCI IRQ allocation */
53 /* Dynamic DMA mapping stuff.
54 * SuperH has everything mapped statically like x86.
57 /* The PCI address space does equal the physical memory
58 * address space. The networking and block device layers use
59 * this boolean for bounce buffer decisions.
61 #define PCI_DMA_BUS_IS_PHYS (1)
63 #include <linux/types.h>
64 #include <linux/slab.h>
65 #include <asm/scatterlist.h>
66 #include <linux/string.h>
69 /* pci_unmap_{single,page} being a nop depends upon the
72 #ifdef CONFIG_SH_PCIDMA_NONCOHERENT
73 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
75 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
77 #define pci_unmap_addr(PTR, ADDR_NAME) \
79 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
80 (((PTR)->ADDR_NAME) = (VAL))
81 #define pci_unmap_len(PTR, LEN_NAME) \
83 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
84 (((PTR)->LEN_NAME) = (VAL))
86 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
87 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
88 #define pci_unmap_addr(PTR, ADDR_NAME) (0)
89 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
90 #define pci_unmap_len(PTR, LEN_NAME) (0)
91 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
95 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
96 enum pci_dma_burst_strategy *strat,
97 unsigned long *strategy_parameter)
99 *strat = PCI_DMA_BURST_INFINITY;
100 *strategy_parameter = ~0UL;
103 static inline int __is_pci_memory(unsigned long phys_addr, unsigned long size)
105 struct pci_channel *p;
106 struct resource *res;
108 for (p = board_pci_channels; p->init; p++) {
109 res = p->mem_resource;
110 if (p->enabled && (phys_addr >= res->start) &&
111 (phys_addr + size) <= (res->end + 1))
117 static inline void __iomem *__get_pci_io_base(unsigned long port,
120 struct pci_channel *p;
121 struct resource *res;
123 for (p = board_pci_channels; p->init; p++) {
124 res = p->io_resource;
125 if (p->enabled && (port >= res->start) &&
126 (port + size) <= (res->end + 1))
127 return (void __iomem *)(p->io_base + port);
132 static inline int __is_pci_memory(unsigned long phys_addr, unsigned long size)
136 static inline void __iomem *__get_pci_io_base(unsigned long port,
143 /* Board-specific fixup routines. */
144 void pcibios_fixup(void);
145 int pcibios_init_platform(void);
146 int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin);
148 #ifdef CONFIG_PCI_AUTO
149 int pciauto_assign_resources(int busno, struct pci_channel *hose);
152 extern void pcibios_resource_to_bus(struct pci_dev *dev,
153 struct pci_bus_region *region, struct resource *res);
155 extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
156 struct pci_bus_region *region);
158 static inline struct resource *
159 pcibios_select_root(struct pci_dev *pdev, struct resource *res)
161 struct resource *root = NULL;
163 if (res->flags & IORESOURCE_IO)
164 root = &ioport_resource;
165 if (res->flags & IORESOURCE_MEM)
166 root = &iomem_resource;
171 /* Chances are this interrupt is wired PC-style ... */
172 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
174 return channel ? 15 : 14;
177 /* generic DMA-mapping stuff */
178 #include <asm-generic/pci-dma-compat.h>
180 #endif /* __KERNEL__ */
181 #endif /* __ASM_SH_PCI_H */