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#include <asm-generic/pci-dma-compat.h>
26
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 */
45#define pcibios_assign_all_busses()	0
46
47#ifdef CONFIG_PCI
48static inline void pci_dma_burst_advice(struct pci_dev *pdev,
49					enum pci_dma_burst_strategy *strat,
50					unsigned long *strategy_parameter)
51{
52	*strat = PCI_DMA_BURST_INFINITY;
53	*strategy_parameter = ~0UL;
54}
55#endif
56
57extern int pci_domain_nr(struct pci_bus *bus);
58
59/* Decide whether to display the domain number in /proc */
60extern int pci_proc_domain(struct pci_bus *bus);
61
62struct vm_area_struct;
63/* Map a range of PCI memory or I/O space for a device into user space */
64int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
65			enum pci_mmap_state mmap_state, int write_combine);
66
67/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
68#define HAVE_PCI_MMAP	1
69
70extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
71			   size_t count);
72extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
73			   size_t count);
74extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
75				      struct vm_area_struct *vma,
76				      enum pci_mmap_state mmap_state);
77
78#define HAVE_PCI_LEGACY	1
79
80/* The PCI address space does equal the physical memory
81 * address space (no IOMMU).  The IDE and SCSI device layers use
82 * this boolean for bounce buffer decisions.
83 */
84#define PCI_DMA_BUS_IS_PHYS     (1)
85
86static inline struct resource *pcibios_select_root(struct pci_dev *pdev,
87			struct resource *res)
88{
89	struct resource *root = NULL;
90
91	if (res->flags & IORESOURCE_IO)
92		root = &ioport_resource;
93	if (res->flags & IORESOURCE_MEM)
94		root = &iomem_resource;
95
96	return root;
97}
98
99extern void pcibios_claim_one_bus(struct pci_bus *b);
100
101extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
102
103extern void pcibios_resource_survey(void);
104
105extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
106extern int remove_phb_dynamic(struct pci_controller *phb);
107
108extern struct pci_dev *of_create_pci_dev(struct device_node *node,
109					struct pci_bus *bus, int devfn);
110
111extern void of_scan_pci_bridge(struct device_node *node,
112				struct pci_dev *dev);
113
114extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
115extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);
116
117extern int pci_bus_find_capability(struct pci_bus *bus,
118						unsigned int devfn, int cap);
119
120struct file;
121extern pgprot_t	pci_phys_mem_access_prot(struct file *file,
122					 unsigned long pfn,
123					 unsigned long size,
124					 pgprot_t prot);
125
126#define HAVE_ARCH_PCI_RESOURCE_TO_USER
127extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
128				 const struct resource *rsrc,
129				 resource_size_t *start, resource_size_t *end);
130
131extern void pcibios_setup_bus_devices(struct pci_bus *bus);
132extern void pcibios_setup_bus_self(struct pci_bus *bus);
133
134/* This part of code was originally in xilinx-pci.h */
135#ifdef CONFIG_PCI_XILINX
136extern void __init xilinx_pci_init(void);
137#else
138static inline void __init xilinx_pci_init(void) { return; }
139#endif
140
141#endif	/* __KERNEL__ */
142#endif /* __ASM_MICROBLAZE_PCI_H */
143