Commit | Line | Data |
---|---|---|
1da177e4 LT |
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 | ||
1da177e4 LT |
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 | */ | |
26 | struct 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; | |
140c1729 | 35 | unsigned long io_map_base; |
1da177e4 LT |
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; | |
8a1417de AI |
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); | |
1da177e4 LT |
48 | }; |
49 | ||
50 | /* | |
51 | * Used by boards to register their PCI busses before the actual scanning. | |
52 | */ | |
53 | extern struct pci_controller * alloc_pci_controller(void); | |
54 | extern void register_pci_controller(struct pci_controller *hose); | |
55 | ||
56 | /* | |
57 | * board supplied pci irq fixup routine | |
58 | */ | |
19df0d11 | 59 | extern int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin); |
1da177e4 LT |
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 | ||
66 | extern unsigned int pcibios_assign_all_busses(void); | |
67 | ||
1da177e4 LT |
68 | extern unsigned long PCIBIOS_MIN_IO; |
69 | extern unsigned long PCIBIOS_MIN_MEM; | |
70 | ||
71 | #define PCIBIOS_MIN_CARDBUS_IO 0x4000 | |
72 | ||
73 | extern void pcibios_set_master(struct pci_dev *dev); | |
74 | ||
c9c3e457 | 75 | static inline void pcibios_penalize_isa_irq(int irq, int active) |
1da177e4 LT |
76 | { |
77 | /* We don't do dynamic PCI IRQ allocation */ | |
78 | } | |
79 | ||
98873f53 RB |
80 | #define HAVE_PCI_MMAP |
81 | ||
82 | extern 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 | ||
1da177e4 LT |
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 | ||
96 | struct 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 | */ | |
103 | extern unsigned int PCI_DMA_BUS_IS_PHYS; | |
104 | ||
bb4a61b6 | 105 | #ifdef CONFIG_PCI |
e24c2d96 DM |
106 | static 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 | } | |
bb4a61b6 | 113 | #endif |
e24c2d96 | 114 | |
1da177e4 LT |
115 | extern void pcibios_resource_to_bus(struct pci_dev *dev, |
116 | struct pci_bus_region *region, struct resource *res); | |
870d3d98 RB |
117 | |
118 | extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, | |
119 | struct pci_bus_region *region); | |
120 | ||
1da177e4 LT |
121 | #define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index |
122 | ||
123 | static 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 | ||
1da177e4 LT |
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 | ||
1da177e4 LT |
134 | /* Do platform specific device initialization at pci_enable_device() time */ |
135 | extern int pcibios_plat_dev_init(struct pci_dev *dev); | |
136 | ||
5b1d221e RB |
137 | /* Chances are this interrupt is wired PC-style ... */ |
138 | static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) | |
139 | { | |
140 | return channel ? 15 : 14; | |
141 | } | |
142 | ||
52a0f00b CC |
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 | ||
af3e69cf | 148 | extern int pci_probe_only; |
af3e69cf | 149 | |
47a5c976 AN |
150 | extern char * (*pcibios_plat_setup)(char *str); |
151 | ||
1da177e4 | 152 | #endif /* _ASM_PCI_H */ |