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
28 struct 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
pcibios_penalize_isa_irq(int irq,int active)45 static 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
51 extern void set_pci_dma_ops(struct dma_map_ops *dma_ops);
52 extern 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
pci_dma_burst_advice(struct pci_dev * pdev,enum pci_dma_burst_strategy * strat,unsigned long * strategy_parameter)59 static 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
68 extern int pci_domain_nr(struct pci_bus *bus);
69
70 /* Decide whether to display the domain number in /proc */
71 extern int pci_proc_domain(struct pci_bus *bus);
72
73 struct vm_area_struct;
74 /* Map a range of PCI memory or I/O space for a device into user space */
75 int 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
81 extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
82 size_t count);
83 extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
84 size_t count);
85 extern 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
pcibios_select_root(struct pci_dev * pdev,struct resource * res)97 static inline struct resource *pcibios_select_root(struct pci_dev *pdev,
98 struct resource *res)
99 {
100 struct resource *root = NULL;
101
102 if (res->flags & IORESOURCE_IO)
103 root = &ioport_resource;
104 if (res->flags & IORESOURCE_MEM)
105 root = &iomem_resource;
106
107 return root;
108 }
109
110 extern void pcibios_claim_one_bus(struct pci_bus *b);
111
112 extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
113
114 extern void pcibios_resource_survey(void);
115
116 extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
117 extern int remove_phb_dynamic(struct pci_controller *phb);
118
119 extern struct pci_dev *of_create_pci_dev(struct device_node *node,
120 struct pci_bus *bus, int devfn);
121
122 extern void of_scan_pci_bridge(struct device_node *node,
123 struct pci_dev *dev);
124
125 extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
126 extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);
127
128 extern int pci_read_irq_line(struct pci_dev *dev);
129
130 extern int pci_bus_find_capability(struct pci_bus *bus,
131 unsigned int devfn, int cap);
132
133 struct file;
134 extern pgprot_t pci_phys_mem_access_prot(struct file *file,
135 unsigned long pfn,
136 unsigned long size,
137 pgprot_t prot);
138
139 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
140 extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
141 const struct resource *rsrc,
142 resource_size_t *start, resource_size_t *end);
143
144 extern void pcibios_setup_bus_devices(struct pci_bus *bus);
145 extern void pcibios_setup_bus_self(struct pci_bus *bus);
146
147 /* This part of code was originally in xilinx-pci.h */
148 #ifdef CONFIG_PCI_XILINX
149 extern void __init xilinx_pci_init(void);
150 #else
xilinx_pci_init(void)151 static inline void __init xilinx_pci_init(void) { return; }
152 #endif
153
154 #include <asm-generic/pci-dma-compat.h>
155
156 #endif /* __KERNEL__ */
157 #endif /* __ASM_MICROBLAZE_PCI_H */
158