PCI: Turn pcibios_penalize_isa_irq() into a weak function
[deliverable/linux.git] / arch / microblaze / include / asm / pci.h
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1/*
2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU General Public License
4 * as published by the Free Software Foundation; either version
5 * 2 of the License, or (at your option) any later version.
6 *
7 * Based on powerpc version
8 */
9
10#ifndef __ASM_MICROBLAZE_PCI_H
11#define __ASM_MICROBLAZE_PCI_H
12#ifdef __KERNEL__
13
14#include <linux/types.h>
15#include <linux/slab.h>
16#include <linux/string.h>
17#include <linux/dma-mapping.h>
18#include <linux/pci.h>
19
20#include <asm/scatterlist.h>
21#include <asm/io.h>
22#include <asm/prom.h>
23#include <asm/pci-bridge.h>
24
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25#include <asm-generic/pci-dma-compat.h>
26
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27#define PCIBIOS_MIN_IO 0x1000
28#define PCIBIOS_MIN_MEM 0x10000000
29
30struct pci_dev;
31
32/* Values for the `which' argument to sys_pciconfig_iobase syscall. */
33#define IOBASE_BRIDGE_NUMBER 0
34#define IOBASE_MEMORY 1
35#define IOBASE_IO 2
36#define IOBASE_ISA_IO 3
37#define IOBASE_ISA_MEM 4
38
39#define pcibios_scan_all_fns(a, b) 0
40
41/*
42 * Set this to 1 if you want the kernel to re-assign all PCI
43 * bus numbers (don't do that on ppc64 yet !)
44 */
72bdee79 45#define pcibios_assign_all_busses() 0
830980a0 46
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47#ifdef CONFIG_PCI
48extern void set_pci_dma_ops(struct dma_map_ops *dma_ops);
49extern struct dma_map_ops *get_pci_dma_ops(void);
50#else /* CONFIG_PCI */
51#define set_pci_dma_ops(d)
52#define get_pci_dma_ops() NULL
53#endif
54
55#ifdef CONFIG_PCI
56static inline void pci_dma_burst_advice(struct pci_dev *pdev,
57 enum pci_dma_burst_strategy *strat,
58 unsigned long *strategy_parameter)
59{
60 *strat = PCI_DMA_BURST_INFINITY;
61 *strategy_parameter = ~0UL;
62}
63#endif
64
65extern int pci_domain_nr(struct pci_bus *bus);
66
67/* Decide whether to display the domain number in /proc */
68extern int pci_proc_domain(struct pci_bus *bus);
69
70struct vm_area_struct;
71/* Map a range of PCI memory or I/O space for a device into user space */
72int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
73 enum pci_mmap_state mmap_state, int write_combine);
74
75/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
76#define HAVE_PCI_MMAP 1
77
78extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
79 size_t count);
80extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
81 size_t count);
82extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
83 struct vm_area_struct *vma,
84 enum pci_mmap_state mmap_state);
85
86#define HAVE_PCI_LEGACY 1
87
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88/* The PCI address space does equal the physical memory
89 * address space (no IOMMU). The IDE and SCSI device layers use
90 * this boolean for bounce buffer decisions.
91 */
92#define PCI_DMA_BUS_IS_PHYS (1)
93
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94static inline struct resource *pcibios_select_root(struct pci_dev *pdev,
95 struct resource *res)
96{
97 struct resource *root = NULL;
98
99 if (res->flags & IORESOURCE_IO)
100 root = &ioport_resource;
101 if (res->flags & IORESOURCE_MEM)
102 root = &iomem_resource;
103
104 return root;
105}
106
107extern void pcibios_claim_one_bus(struct pci_bus *b);
108
109extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
110
111extern void pcibios_resource_survey(void);
112
113extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
114extern int remove_phb_dynamic(struct pci_controller *phb);
115
116extern struct pci_dev *of_create_pci_dev(struct device_node *node,
117 struct pci_bus *bus, int devfn);
118
119extern void of_scan_pci_bridge(struct device_node *node,
120 struct pci_dev *dev);
121
122extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
123extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);
124
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125extern int pci_bus_find_capability(struct pci_bus *bus,
126 unsigned int devfn, int cap);
127
128struct file;
129extern pgprot_t pci_phys_mem_access_prot(struct file *file,
130 unsigned long pfn,
131 unsigned long size,
132 pgprot_t prot);
133
134#define HAVE_ARCH_PCI_RESOURCE_TO_USER
135extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
136 const struct resource *rsrc,
137 resource_size_t *start, resource_size_t *end);
138
139extern void pcibios_setup_bus_devices(struct pci_bus *bus);
140extern void pcibios_setup_bus_self(struct pci_bus *bus);
141
25985edc 142/* This part of code was originally in xilinx-pci.h */
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143#ifdef CONFIG_PCI_XILINX
144extern void __init xilinx_pci_init(void);
145#else
146static inline void __init xilinx_pci_init(void) { return; }
147#endif
148
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149#endif /* __KERNEL__ */
150#endif /* __ASM_MICROBLAZE_PCI_H */
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