1 /* MN10300 PCI definitions
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11 #ifndef _ASM_PCI_H
12 #define _ASM_PCI_H
13
14 #ifdef __KERNEL__
15 #include <linux/mm.h> /* for struct page */
16
17 #if 0
18 #define __pcbdebug(FMT, ADDR, ...) \
19 printk(KERN_DEBUG "PCIBRIDGE[%08x]: "FMT"\n", \
20 (u32)(ADDR), ##__VA_ARGS__)
21
22 #define __pcidebug(FMT, BUS, DEVFN, WHERE,...) \
23 do { \
24 printk(KERN_DEBUG "PCI[%02x:%02x.%x + %02x]: "FMT"\n", \
25 (BUS)->number, \
26 PCI_SLOT(DEVFN), \
27 PCI_FUNC(DEVFN), \
28 (u32)(WHERE), ##__VA_ARGS__); \
29 } while (0)
30
31 #else
32 #define __pcbdebug(FMT, ADDR, ...) do {} while (0)
33 #define __pcidebug(FMT, BUS, DEVFN, WHERE, ...) do {} while (0)
34 #endif
35
36 /* Can be used to override the logic in pci_scan_bus for skipping
37 * already-configured bus numbers - to be used for buggy BIOSes or
38 * architectures with incomplete PCI setup by the loader */
39
40 #ifdef CONFIG_PCI
41 #define pcibios_assign_all_busses() 1
42 extern void unit_pci_init(void);
43 #else
44 #define pcibios_assign_all_busses() 0
45 #endif
46
47 extern unsigned long pci_mem_start;
48 #define PCIBIOS_MIN_IO 0xBE000004
49 #define PCIBIOS_MIN_MEM 0xB8000000
50
51 void pcibios_set_master(struct pci_dev *dev);
52 void pcibios_penalize_isa_irq(int irq);
53
54 /* Dynamic DMA mapping stuff.
55 * i386 has everything mapped statically.
56 */
57
58 #include <linux/types.h>
59 #include <linux/slab.h>
60 #include <asm/scatterlist.h>
61 #include <linux/string.h>
62 #include <linux/mm.h>
63 #include <asm/io.h>
64
65 struct pci_dev;
66
67 /* The PCI address space does equal the physical memory
68 * address space. The networking and block device layers use
69 * this boolean for bounce buffer decisions.
70 */
71 #define PCI_DMA_BUS_IS_PHYS (1)
72
73
74 /* This is always fine. */
75 #define pci_dac_dma_supported(pci_dev, mask) (0)
76
77 /* Return the index of the PCI controller for device. */
pci_controller_num(struct pci_dev * dev)78 static inline int pci_controller_num(struct pci_dev *dev)
79 {
80 return 0;
81 }
82
83 #define HAVE_PCI_MMAP
84 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
85 enum pci_mmap_state mmap_state,
86 int write_combine);
87
88 #endif /* __KERNEL__ */
89
90 /* implement the pci_ DMA API in terms of the generic device dma_ one */
91 #include <asm-generic/pci-dma-compat.h>
92
93 /**
94 * pcibios_resource_to_bus - convert resource to PCI bus address
95 * @dev: device which owns this resource
96 * @region: converted bus-centric region (start,end)
97 * @res: resource to convert
98 *
99 * Convert a resource to a PCI device bus address or bus window.
100 */
101 extern void pcibios_resource_to_bus(struct pci_dev *dev,
102 struct pci_bus_region *region,
103 struct resource *res);
104
105 extern void pcibios_bus_to_resource(struct pci_dev *dev,
106 struct resource *res,
107 struct pci_bus_region *region);
108
109 static inline struct resource *
pcibios_select_root(struct pci_dev * pdev,struct resource * res)110 pcibios_select_root(struct pci_dev *pdev, struct resource *res)
111 {
112 struct resource *root = NULL;
113
114 if (res->flags & IORESOURCE_IO)
115 root = &ioport_resource;
116 if (res->flags & IORESOURCE_MEM)
117 root = &iomem_resource;
118
119 return root;
120 }
121
122 #define pcibios_scan_all_fns(a, b) 0
123
124 #endif /* _ASM_PCI_H */
125