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b920de1b DH |
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 | /* | |
78 | * These macros should be used after a pci_map_sg call has been done | |
79 | * to get bus addresses of each of the SG entries and their lengths. | |
80 | * You should only work with the number of sg entries pci_map_sg | |
81 | * returns. | |
82 | */ | |
83 | #define sg_dma_address(sg) ((sg)->dma_address) | |
84 | #define sg_dma_len(sg) ((sg)->length) | |
85 | ||
86 | /* Return the index of the PCI controller for device. */ | |
87 | static inline int pci_controller_num(struct pci_dev *dev) | |
88 | { | |
89 | return 0; | |
90 | } | |
91 | ||
92 | #define HAVE_PCI_MMAP | |
93 | extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, | |
94 | enum pci_mmap_state mmap_state, | |
95 | int write_combine); | |
96 | ||
97 | #endif /* __KERNEL__ */ | |
98 | ||
99 | /* implement the pci_ DMA API in terms of the generic device dma_ one */ | |
100 | #include <asm-generic/pci-dma-compat.h> | |
101 | ||
102 | /** | |
103 | * pcibios_resource_to_bus - convert resource to PCI bus address | |
104 | * @dev: device which owns this resource | |
105 | * @region: converted bus-centric region (start,end) | |
106 | * @res: resource to convert | |
107 | * | |
108 | * Convert a resource to a PCI device bus address or bus window. | |
109 | */ | |
110 | extern void pcibios_resource_to_bus(struct pci_dev *dev, | |
111 | struct pci_bus_region *region, | |
112 | struct resource *res); | |
113 | ||
114 | extern void pcibios_bus_to_resource(struct pci_dev *dev, | |
115 | struct resource *res, | |
116 | struct pci_bus_region *region); | |
117 | ||
118 | static inline struct resource * | |
119 | pcibios_select_root(struct pci_dev *pdev, struct resource *res) | |
120 | { | |
121 | struct resource *root = NULL; | |
122 | ||
123 | if (res->flags & IORESOURCE_IO) | |
124 | root = &ioport_resource; | |
125 | if (res->flags & IORESOURCE_MEM) | |
126 | root = &iomem_resource; | |
127 | ||
128 | return root; | |
129 | } | |
130 | ||
131 | #define pcibios_scan_all_fns(a, b) 0 | |
132 | ||
133 | #endif /* _ASM_PCI_H */ |