1 #ifndef __x86_PCI_H
2 #define __x86_PCI_H
3
4 #include <linux/mm.h> /* for struct page */
5 #include <linux/types.h>
6 #include <linux/slab.h>
7 #include <linux/string.h>
8 #include <asm/scatterlist.h>
9 #include <asm/io.h>
10
11
12 #ifdef __KERNEL__
13
14 struct pci_sysdata {
15 int domain; /* PCI domain */
16 int node; /* NUMA node */
17 #ifdef CONFIG_X86_64
18 void* iommu; /* IOMMU private data */
19 #endif
20 };
21
22 /* scan a bus after allocating a pci_sysdata for it */
23 extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
24
25 static inline int pci_domain_nr(struct pci_bus *bus)
26 {
27 struct pci_sysdata *sd = bus->sysdata;
28 return sd->domain;
29 }
30
31 static inline int pci_proc_domain(struct pci_bus *bus)
32 {
33 return pci_domain_nr(bus);
34 }
35
36
37 /* Can be used to override the logic in pci_scan_bus for skipping
38 already-configured bus numbers - to be used for buggy BIOSes
39 or architectures with incomplete PCI setup by the loader */
40
41 #ifdef CONFIG_PCI
42 extern unsigned int pcibios_assign_all_busses(void);
43 #else
44 #define pcibios_assign_all_busses() 0
45 #endif
46 #define pcibios_scan_all_fns(a, b) 0
47
48 extern unsigned long pci_mem_start;
49 #define PCIBIOS_MIN_IO 0x1000
50 #define PCIBIOS_MIN_MEM (pci_mem_start)
51
52 #define PCIBIOS_MIN_CARDBUS_IO 0x4000
53
54 void pcibios_config_init(void);
55 struct pci_bus * pcibios_scan_root(int bus);
56
57 void pcibios_set_master(struct pci_dev *dev);
58 void pcibios_penalize_isa_irq(int irq, int active);
59 struct irq_routing_table *pcibios_get_irq_routing_table(void);
60 int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
61
62
63 #define HAVE_PCI_MMAP
64 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
65 enum pci_mmap_state mmap_state, int write_combine);
66
67
68 #ifdef CONFIG_PCI
69 extern void early_quirks(void);
70 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
71 enum pci_dma_burst_strategy *strat,
72 unsigned long *strategy_parameter)
73 {
74 *strat = PCI_DMA_BURST_INFINITY;
75 *strategy_parameter = ~0UL;
76 }
77 #else
78 static inline void early_quirks(void) { }
79 #endif
80
81 #endif /* __KERNEL__ */
82
83 #ifdef CONFIG_X86_32
84 # include "pci_32.h"
85 #else
86 # include "pci_64.h"
87 #endif
88
89 /* implement the pci_ DMA API in terms of the generic device dma_ one */
90 #include <asm-generic/pci-dma-compat.h>
91
92 /* generic pci stuff */
93 #include <asm-generic/pci.h>
94
95 #ifdef CONFIG_NUMA
96 /* Returns the node based on pci bus */
97 static inline int __pcibus_to_node(struct pci_bus *bus)
98 {
99 struct pci_sysdata *sd = bus->sysdata;
100
101 return sd->node;
102 }
103
104 static inline cpumask_t __pcibus_to_cpumask(struct pci_bus *bus)
105 {
106 return node_to_cpumask(__pcibus_to_node(bus));
107 }
108 #endif
109
110 #endif
111
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