tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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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
25#define PCIBIOS_MIN_IO 0x1000
26#define PCIBIOS_MIN_MEM 0x10000000
27
28struct pci_dev;
29
30/* Values for the `which' argument to sys_pciconfig_iobase syscall. */
31#define IOBASE_BRIDGE_NUMBER 0
32#define IOBASE_MEMORY 1
33#define IOBASE_IO 2
34#define IOBASE_ISA_IO 3
35#define IOBASE_ISA_MEM 4
36
37#define pcibios_scan_all_fns(a, b) 0
38
39/*
40 * Set this to 1 if you want the kernel to re-assign all PCI
41 * bus numbers (don't do that on ppc64 yet !)
42 */
43#define pcibios_assign_all_busses() 0
44
45static inline void pcibios_penalize_isa_irq(int irq, int active)
46{
47 /* We don't do dynamic PCI IRQ allocation */
48}
49
50#ifdef CONFIG_PCI
51extern void set_pci_dma_ops(struct dma_map_ops *dma_ops);
52extern struct dma_map_ops *get_pci_dma_ops(void);
53#else /* CONFIG_PCI */
54#define set_pci_dma_ops(d)
55#define get_pci_dma_ops() NULL
56#endif
57
58#ifdef CONFIG_PCI
59static inline void pci_dma_burst_advice(struct pci_dev *pdev,
60 enum pci_dma_burst_strategy *strat,
61 unsigned long *strategy_parameter)
62{
63 *strat = PCI_DMA_BURST_INFINITY;
64 *strategy_parameter = ~0UL;
65}
66#endif
67
68extern int pci_domain_nr(struct pci_bus *bus);
69
70/* Decide whether to display the domain number in /proc */
71extern int pci_proc_domain(struct pci_bus *bus);
72
73struct vm_area_struct;
74/* Map a range of PCI memory or I/O space for a device into user space */
75int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
76 enum pci_mmap_state mmap_state, int write_combine);
77
78/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
79#define HAVE_PCI_MMAP 1
80
81extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
82 size_t count);
83extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
84 size_t count);
85extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
86 struct vm_area_struct *vma,
87 enum pci_mmap_state mmap_state);
88
89#define HAVE_PCI_LEGACY 1
90
91/* The PCI address space does equal the physical memory
92 * address space (no IOMMU). The IDE and SCSI device layers use
93 * this boolean for bounce buffer decisions.
94 */
95#define PCI_DMA_BUS_IS_PHYS (1)
96
97extern void pcibios_resource_to_bus(struct pci_dev *dev,
98 struct pci_bus_region *region,
99 struct resource *res);
100
101extern void pcibios_bus_to_resource(struct pci_dev *dev,
102 struct resource *res,
103 struct pci_bus_region *region);
104
105static inline struct resource *pcibios_select_root(struct pci_dev *pdev,
106 struct resource *res)
107{
108 struct resource *root = NULL;
109
110 if (res->flags & IORESOURCE_IO)
111 root = &ioport_resource;
112 if (res->flags & IORESOURCE_MEM)
113 root = &iomem_resource;
114
115 return root;
116}
117
118extern void pcibios_claim_one_bus(struct pci_bus *b);
119
120extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
121
122extern void pcibios_resource_survey(void);
123
124extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
125extern int remove_phb_dynamic(struct pci_controller *phb);
126
127extern struct pci_dev *of_create_pci_dev(struct device_node *node,
128 struct pci_bus *bus, int devfn);
129
130extern void of_scan_pci_bridge(struct device_node *node,
131 struct pci_dev *dev);
132
133extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
134extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);
135
136extern int pci_read_irq_line(struct pci_dev *dev);
137
138extern int pci_bus_find_capability(struct pci_bus *bus,
139 unsigned int devfn, int cap);
140
141struct file;
142extern pgprot_t pci_phys_mem_access_prot(struct file *file,
143 unsigned long pfn,
144 unsigned long size,
145 pgprot_t prot);
146
147#define HAVE_ARCH_PCI_RESOURCE_TO_USER
148extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
149 const struct resource *rsrc,
150 resource_size_t *start, resource_size_t *end);
151
152extern void pcibios_setup_bus_devices(struct pci_bus *bus);
153extern void pcibios_setup_bus_self(struct pci_bus *bus);
154
155/* This part of code was originally in xilinx-pci.h */
156#ifdef CONFIG_PCI_XILINX
157extern void __init xilinx_pci_init(void);
158#else
159static inline void __init xilinx_pci_init(void) { return; }
160#endif
161
162#include <asm-generic/pci-dma-compat.h>
163
164#endif /* __KERNEL__ */
165#endif /* __ASM_MICROBLAZE_PCI_H */