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1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 */
6#ifndef _ASM_PCI_H
7#define _ASM_PCI_H
8
9#include <linux/mm.h>
10
11#ifdef __KERNEL__
12
13/*
14 * This file essentially defines the interface between board
15 * specific PCI code and MIPS common PCI code. Should potentially put
16 * into include/asm/pci.h file.
17 */
18
19#include <linux/ioport.h>
20
21/*
22 * Each pci channel is a top-level PCI bus seem by CPU. A machine with
23 * multiple PCI channels may have multiple PCI host controllers or a
24 * single controller supporting multiple channels.
25 */
26struct pci_controller {
27 struct pci_controller *next;
28 struct pci_bus *bus;
29
30 struct pci_ops *pci_ops;
31 struct resource *mem_resource;
32 unsigned long mem_offset;
33 struct resource *io_resource;
34 unsigned long io_offset;
35 unsigned long io_map_base;
36
37 unsigned int index;
38 /* For compatibility with current (as of July 2003) pciutils
39 and XFree86. Eventually will be removed. */
40 unsigned int need_domain_info;
41
42 int iommu;
43
44 /* Optional access methods for reading/writing the bus number
45 of the PCI controller */
46 int (*get_busno)(void);
47 void (*set_busno)(int busno);
48};
49
50/*
51 * Used by boards to register their PCI busses before the actual scanning.
52 */
53extern struct pci_controller * alloc_pci_controller(void);
54extern void register_pci_controller(struct pci_controller *hose);
55
56/*
57 * board supplied pci irq fixup routine
58 */
59extern int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
60
61
62/* Can be used to override the logic in pci_scan_bus for skipping
63 already-configured bus numbers - to be used for buggy BIOSes
64 or architectures with incomplete PCI setup by the loader */
65
66extern unsigned int pcibios_assign_all_busses(void);
67
68extern unsigned long PCIBIOS_MIN_IO;
69extern unsigned long PCIBIOS_MIN_MEM;
70
71#define PCIBIOS_MIN_CARDBUS_IO 0x4000
72
73extern void pcibios_set_master(struct pci_dev *dev);
74
75static inline void pcibios_penalize_isa_irq(int irq, int active)
76{
77 /* We don't do dynamic PCI IRQ allocation */
78}
79
80#define HAVE_PCI_MMAP
81
82extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
83 enum pci_mmap_state mmap_state, int write_combine);
84
85/*
86 * Dynamic DMA mapping stuff.
87 * MIPS has everything mapped statically.
88 */
89
90#include <linux/types.h>
91#include <linux/slab.h>
92#include <asm/scatterlist.h>
93#include <linux/string.h>
94#include <asm/io.h>
95
96struct pci_dev;
97
98/*
99 * The PCI address space does equal the physical memory address space. The
100 * networking and block device layers use this boolean for bounce buffer
101 * decisions. This is set if any hose does not have an IOMMU.
102 */
103extern unsigned int PCI_DMA_BUS_IS_PHYS;
104
105#ifdef CONFIG_PCI
106static inline void pci_dma_burst_advice(struct pci_dev *pdev,
107 enum pci_dma_burst_strategy *strat,
108 unsigned long *strategy_parameter)
109{
110 *strat = PCI_DMA_BURST_INFINITY;
111 *strategy_parameter = ~0UL;
112}
113#endif
114
115extern void pcibios_resource_to_bus(struct pci_dev *dev,
116 struct pci_bus_region *region, struct resource *res);
117
118extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
119 struct pci_bus_region *region);
120
121#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
122
123static inline int pci_proc_domain(struct pci_bus *bus)
124{
125 struct pci_controller *hose = bus->sysdata;
126 return hose->need_domain_info;
127}
128
129#endif /* __KERNEL__ */
130
131/* implement the pci_ DMA API in terms of the generic device dma_ one */
132#include <asm-generic/pci-dma-compat.h>
133
134/* Do platform specific device initialization at pci_enable_device() time */
135extern int pcibios_plat_dev_init(struct pci_dev *dev);
136
137/* Chances are this interrupt is wired PC-style ... */
138static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
139{
140 return channel ? 15 : 14;
141}
142
143#ifdef CONFIG_CPU_CAVIUM_OCTEON
144/* MSI arch hook for OCTEON */
145#define arch_setup_msi_irqs arch_setup_msi_irqs
146#endif
147
148extern int pci_probe_only;
149
150extern char * (*pcibios_plat_setup)(char *str);
151
152#endif /* _ASM_PCI_H */
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 */
6#ifndef _ASM_PCI_H
7#define _ASM_PCI_H
8
9#include <linux/mm.h>
10
11#ifdef __KERNEL__
12
13/*
14 * This file essentially defines the interface between board
15 * specific PCI code and MIPS common PCI code. Should potentially put
16 * into include/asm/pci.h file.
17 */
18
19#include <linux/ioport.h>
20#include <linux/of.h>
21
22/*
23 * Each pci channel is a top-level PCI bus seem by CPU. A machine with
24 * multiple PCI channels may have multiple PCI host controllers or a
25 * single controller supporting multiple channels.
26 */
27struct pci_controller {
28 struct pci_controller *next;
29 struct pci_bus *bus;
30 struct device_node *of_node;
31
32 struct pci_ops *pci_ops;
33 struct resource *mem_resource;
34 unsigned long mem_offset;
35 struct resource *io_resource;
36 unsigned long io_offset;
37 unsigned long io_map_base;
38
39 unsigned int index;
40 /* For compatibility with current (as of July 2003) pciutils
41 and XFree86. Eventually will be removed. */
42 unsigned int need_domain_info;
43
44 int iommu;
45
46 /* Optional access methods for reading/writing the bus number
47 of the PCI controller */
48 int (*get_busno)(void);
49 void (*set_busno)(int busno);
50};
51
52/*
53 * Used by boards to register their PCI busses before the actual scanning.
54 */
55extern void register_pci_controller(struct pci_controller *hose);
56
57/*
58 * board supplied pci irq fixup routine
59 */
60extern int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
61
62
63/* Can be used to override the logic in pci_scan_bus for skipping
64 already-configured bus numbers - to be used for buggy BIOSes
65 or architectures with incomplete PCI setup by the loader */
66
67extern unsigned int pcibios_assign_all_busses(void);
68
69extern unsigned long PCIBIOS_MIN_IO;
70extern unsigned long PCIBIOS_MIN_MEM;
71
72#define PCIBIOS_MIN_CARDBUS_IO 0x4000
73
74extern void pcibios_set_master(struct pci_dev *dev);
75
76static inline void pcibios_penalize_isa_irq(int irq, int active)
77{
78 /* We don't do dynamic PCI IRQ allocation */
79}
80
81#define HAVE_PCI_MMAP
82
83extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
84 enum pci_mmap_state mmap_state, int write_combine);
85
86#define HAVE_ARCH_PCI_RESOURCE_TO_USER
87
88static inline void pci_resource_to_user(const struct pci_dev *dev, int bar,
89 const struct resource *rsrc, resource_size_t *start,
90 resource_size_t *end)
91{
92 phys_t size = resource_size(rsrc);
93
94 *start = fixup_bigphys_addr(rsrc->start, size);
95 *end = rsrc->start + size;
96}
97
98/*
99 * Dynamic DMA mapping stuff.
100 * MIPS has everything mapped statically.
101 */
102
103#include <linux/types.h>
104#include <linux/slab.h>
105#include <asm/scatterlist.h>
106#include <linux/string.h>
107#include <asm/io.h>
108#include <asm-generic/pci-bridge.h>
109
110struct pci_dev;
111
112/*
113 * The PCI address space does equal the physical memory address space. The
114 * networking and block device layers use this boolean for bounce buffer
115 * decisions. This is set if any hose does not have an IOMMU.
116 */
117extern unsigned int PCI_DMA_BUS_IS_PHYS;
118
119#ifdef CONFIG_PCI
120static inline void pci_dma_burst_advice(struct pci_dev *pdev,
121 enum pci_dma_burst_strategy *strat,
122 unsigned long *strategy_parameter)
123{
124 *strat = PCI_DMA_BURST_INFINITY;
125 *strategy_parameter = ~0UL;
126}
127#endif
128
129#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
130
131static inline int pci_proc_domain(struct pci_bus *bus)
132{
133 struct pci_controller *hose = bus->sysdata;
134 return hose->need_domain_info;
135}
136
137#endif /* __KERNEL__ */
138
139/* implement the pci_ DMA API in terms of the generic device dma_ one */
140#include <asm-generic/pci-dma-compat.h>
141
142/* Do platform specific device initialization at pci_enable_device() time */
143extern int pcibios_plat_dev_init(struct pci_dev *dev);
144
145/* Chances are this interrupt is wired PC-style ... */
146static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
147{
148 return channel ? 15 : 14;
149}
150
151extern char * (*pcibios_plat_setup)(char *str);
152
153#ifdef CONFIG_OF
154/* this function parses memory ranges from a device node */
155extern void pci_load_of_ranges(struct pci_controller *hose,
156 struct device_node *node);
157#else
158static inline void pci_load_of_ranges(struct pci_controller *hose,
159 struct device_node *node) {}
160#endif
161
162#endif /* _ASM_PCI_H */