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1965aae3 PA |
1 | #ifndef _ASM_X86_PCI_H |
2 | #define _ASM_X86_PCI_H | |
f3e6f164 GKH |
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> | |
294ee6f8 | 10 | #include <asm/x86_init.h> |
f3e6f164 | 11 | |
f3e6f164 GKH |
12 | #ifdef __KERNEL__ |
13 | ||
14 | struct pci_sysdata { | |
15 | int domain; /* PCI domain */ | |
16 | int node; /* NUMA node */ | |
6c0cc950 | 17 | #ifdef CONFIG_ACPI |
7b199811 | 18 | struct acpi_device *companion; /* ACPI companion device */ |
6c0cc950 | 19 | #endif |
f3e6f164 | 20 | #ifdef CONFIG_X86_64 |
69bdb7bc | 21 | void *iommu; /* IOMMU private data */ |
f3e6f164 GKH |
22 | #endif |
23 | }; | |
24 | ||
07156509 | 25 | extern int pci_routeirq; |
a9322f64 | 26 | extern int noioapicquirk; |
41b9eb26 | 27 | extern int noioapicreroute; |
07156509 | 28 | |
23b90cfd JB |
29 | #ifdef CONFIG_PCI |
30 | ||
31 | #ifdef CONFIG_PCI_DOMAINS | |
f3e6f164 GKH |
32 | static inline int pci_domain_nr(struct pci_bus *bus) |
33 | { | |
34 | struct pci_sysdata *sd = bus->sysdata; | |
35 | return sd->domain; | |
36 | } | |
37 | ||
38 | static inline int pci_proc_domain(struct pci_bus *bus) | |
39 | { | |
40 | return pci_domain_nr(bus); | |
41 | } | |
23b90cfd | 42 | #endif |
f3e6f164 GKH |
43 | |
44 | /* Can be used to override the logic in pci_scan_bus for skipping | |
45 | already-configured bus numbers - to be used for buggy BIOSes | |
46 | or architectures with incomplete PCI setup by the loader */ | |
47 | ||
f3e6f164 | 48 | extern unsigned int pcibios_assign_all_busses(void); |
b72d0db9 TG |
49 | extern int pci_legacy_init(void); |
50 | # ifdef CONFIG_ACPI | |
51 | # define x86_default_pci_init pci_acpi_init | |
52 | # else | |
53 | # define x86_default_pci_init pci_legacy_init | |
54 | # endif | |
f3e6f164 | 55 | #else |
b72d0db9 TG |
56 | # define pcibios_assign_all_busses() 0 |
57 | # define x86_default_pci_init NULL | |
f3e6f164 | 58 | #endif |
f3e6f164 GKH |
59 | |
60 | extern unsigned long pci_mem_start; | |
61 | #define PCIBIOS_MIN_IO 0x1000 | |
62 | #define PCIBIOS_MIN_MEM (pci_mem_start) | |
63 | ||
64 | #define PCIBIOS_MIN_CARDBUS_IO 0x4000 | |
65 | ||
5bd5a452 | 66 | extern int pcibios_enabled; |
f3e6f164 | 67 | void pcibios_config_init(void); |
49886cf4 | 68 | void pcibios_scan_root(int bus); |
f3e6f164 GKH |
69 | |
70 | void pcibios_set_master(struct pci_dev *dev); | |
f3e6f164 GKH |
71 | struct irq_routing_table *pcibios_get_irq_routing_table(void); |
72 | int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); | |
73 | ||
74 | ||
75 | #define HAVE_PCI_MMAP | |
76 | extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, | |
69bdb7bc JP |
77 | enum pci_mmap_state mmap_state, |
78 | int write_combine); | |
f3e6f164 GKH |
79 | |
80 | ||
81 | #ifdef CONFIG_PCI | |
376ff035 | 82 | extern void early_quirks(void); |
f3e6f164 GKH |
83 | static inline void pci_dma_burst_advice(struct pci_dev *pdev, |
84 | enum pci_dma_burst_strategy *strat, | |
85 | unsigned long *strategy_parameter) | |
86 | { | |
87 | *strat = PCI_DMA_BURST_INFINITY; | |
88 | *strategy_parameter = ~0UL; | |
89 | } | |
376ff035 TG |
90 | #else |
91 | static inline void early_quirks(void) { } | |
f3e6f164 GKH |
92 | #endif |
93 | ||
cfb80c9e JF |
94 | extern void pci_iommu_alloc(void); |
95 | ||
294ee6f8 | 96 | #ifdef CONFIG_PCI_MSI |
294ee6f8 | 97 | /* implemented in arch/x86/kernel/apic/io_apic. */ |
5afba62c | 98 | struct msi_desc; |
294ee6f8 SS |
99 | int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type); |
100 | void native_teardown_msi_irq(unsigned int irq); | |
ac8344c4 | 101 | void native_restore_msi_irqs(struct pci_dev *dev); |
5afba62c JR |
102 | int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, |
103 | unsigned int irq_base, unsigned int irq_offset); | |
294ee6f8 SS |
104 | #else |
105 | #define native_setup_msi_irqs NULL | |
106 | #define native_teardown_msi_irq NULL | |
294ee6f8 | 107 | #endif |
11df1f05 | 108 | |
67796bf7 JR |
109 | #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) |
110 | ||
67796bf7 JR |
111 | #endif /* __KERNEL__ */ |
112 | ||
113 | #ifdef CONFIG_X86_64 | |
a1ce3928 | 114 | #include <asm/pci_64.h> |
f3e6f164 GKH |
115 | #endif |
116 | ||
117 | /* implement the pci_ DMA API in terms of the generic device dma_ one */ | |
118 | #include <asm-generic/pci-dma-compat.h> | |
119 | ||
120 | /* generic pci stuff */ | |
121 | #include <asm-generic/pci.h> | |
122 | ||
b4ea9299 TG |
123 | #ifdef CONFIG_NUMA |
124 | /* Returns the node based on pci bus */ | |
393d68fb | 125 | static inline int __pcibus_to_node(const struct pci_bus *bus) |
b4ea9299 | 126 | { |
393d68fb | 127 | const struct pci_sysdata *sd = bus->sysdata; |
b4ea9299 TG |
128 | |
129 | return sd->node; | |
130 | } | |
f3e6f164 | 131 | |
393d68fb RR |
132 | static inline const struct cpumask * |
133 | cpumask_of_pcibus(const struct pci_bus *bus) | |
134 | { | |
7715a1e8 DR |
135 | int node; |
136 | ||
137 | node = __pcibus_to_node(bus); | |
138 | return (node == -1) ? cpu_online_mask : | |
139 | cpumask_of_node(node); | |
393d68fb | 140 | } |
b4ea9299 | 141 | #endif |
f3e6f164 | 142 | |
dd5fc854 MG |
143 | struct pci_setup_rom { |
144 | struct setup_data data; | |
145 | uint16_t vendor; | |
146 | uint16_t devid; | |
147 | uint64_t pcilen; | |
148 | unsigned long segment; | |
149 | unsigned long bus; | |
150 | unsigned long device; | |
151 | unsigned long function; | |
152 | uint8_t romdata[0]; | |
153 | }; | |
154 | ||
1965aae3 | 155 | #endif /* _ASM_X86_PCI_H */ |