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>
10 #include <asm/x86_init.h>
15 int domain; /* PCI domain */
16 int node; /* NUMA node */
18 struct acpi_device *companion; /* ACPI companion device */
21 void *iommu; /* IOMMU private data */
25 extern int pci_routeirq;
26 extern int noioapicquirk;
27 extern int noioapicreroute;
31 #ifdef CONFIG_PCI_DOMAINS
32 static inline int pci_domain_nr(struct pci_bus *bus)
34 struct pci_sysdata *sd = bus->sysdata;
38 static inline int pci_proc_domain(struct pci_bus *bus)
40 return pci_domain_nr(bus);
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 */
48 extern unsigned int pcibios_assign_all_busses(void);
49 extern int pci_legacy_init(void);
51 # define x86_default_pci_init pci_acpi_init
53 # define x86_default_pci_init pci_legacy_init
56 # define pcibios_assign_all_busses() 0
57 # define x86_default_pci_init NULL
60 extern unsigned long pci_mem_start;
61 #define PCIBIOS_MIN_IO 0x1000
62 #define PCIBIOS_MIN_MEM (pci_mem_start)
64 #define PCIBIOS_MIN_CARDBUS_IO 0x4000
66 extern int pcibios_enabled;
67 void pcibios_config_init(void);
68 void pcibios_scan_root(int bus);
70 void pcibios_set_master(struct pci_dev *dev);
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);
76 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
77 enum pci_mmap_state mmap_state,
82 extern void early_quirks(void);
83 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
84 enum pci_dma_burst_strategy *strat,
85 unsigned long *strategy_parameter)
87 *strat = PCI_DMA_BURST_INFINITY;
88 *strategy_parameter = ~0UL;
91 static inline void early_quirks(void) { }
94 extern void pci_iommu_alloc(void);
97 /* implemented in arch/x86/kernel/apic/io_apic. */
99 void native_compose_msi_msg(struct pci_dev *pdev, unsigned int irq,
100 unsigned int dest, struct msi_msg *msg, u8 hpet_id);
101 int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
102 void native_teardown_msi_irq(unsigned int irq);
103 void native_restore_msi_irqs(struct pci_dev *dev);
104 int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc,
105 unsigned int irq_base, unsigned int irq_offset);
107 #define native_compose_msi_msg NULL
108 #define native_setup_msi_irqs NULL
109 #define native_teardown_msi_irq NULL
112 #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
114 #endif /* __KERNEL__ */
117 #include <asm/pci_64.h>
120 /* implement the pci_ DMA API in terms of the generic device dma_ one */
121 #include <asm-generic/pci-dma-compat.h>
123 /* generic pci stuff */
124 #include <asm-generic/pci.h>
127 /* Returns the node based on pci bus */
128 static inline int __pcibus_to_node(const struct pci_bus *bus)
130 const struct pci_sysdata *sd = bus->sysdata;
135 static inline const struct cpumask *
136 cpumask_of_pcibus(const struct pci_bus *bus)
140 node = __pcibus_to_node(bus);
141 return (node == -1) ? cpu_online_mask :
142 cpumask_of_node(node);
146 struct pci_setup_rom {
147 struct setup_data data;
151 unsigned long segment;
153 unsigned long device;
154 unsigned long function;
158 #endif /* _ASM_X86_PCI_H */