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>
14 int domain; /* PCI domain */
15 int node; /* NUMA node */
17 void *iommu; /* IOMMU private data */
21 extern int pci_routeirq;
22 extern int noioapicquirk;
23 extern int noioapicreroute;
25 /* scan a bus after allocating a pci_sysdata for it */
26 extern struct pci_bus *pci_scan_bus_on_node(int busno, struct pci_ops *ops,
28 extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
32 #ifdef CONFIG_PCI_DOMAINS
33 static inline int pci_domain_nr(struct pci_bus *bus)
35 struct pci_sysdata *sd = bus->sysdata;
39 static inline int pci_proc_domain(struct pci_bus *bus)
41 return pci_domain_nr(bus);
45 /* Can be used to override the logic in pci_scan_bus for skipping
46 already-configured bus numbers - to be used for buggy BIOSes
47 or architectures with incomplete PCI setup by the loader */
49 extern unsigned int pcibios_assign_all_busses(void);
50 extern int pci_legacy_init(void);
52 # define x86_default_pci_init pci_acpi_init
54 # define x86_default_pci_init pci_legacy_init
57 # define pcibios_assign_all_busses() 0
58 # define x86_default_pci_init NULL
61 extern unsigned long pci_mem_start;
62 #define PCIBIOS_MIN_IO 0x1000
63 #define PCIBIOS_MIN_MEM (pci_mem_start)
65 #define PCIBIOS_MIN_CARDBUS_IO 0x4000
67 void pcibios_config_init(void);
68 struct pci_bus *pcibios_scan_root(int bus);
70 void pcibios_set_master(struct pci_dev *dev);
71 void pcibios_penalize_isa_irq(int irq, int active);
72 struct irq_routing_table *pcibios_get_irq_routing_table(void);
73 int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
77 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
78 enum pci_mmap_state mmap_state,
83 extern void early_quirks(void);
84 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
85 enum pci_dma_burst_strategy *strat,
86 unsigned long *strategy_parameter)
88 *strat = PCI_DMA_BURST_INFINITY;
89 *strategy_parameter = ~0UL;
92 static inline void early_quirks(void) { }
95 extern void pci_iommu_alloc(void);
98 #define arch_setup_msi_irqs arch_setup_msi_irqs
100 #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
102 #endif /* __KERNEL__ */
108 void dma32_reserve_bootmem(void);
110 /* implement the pci_ DMA API in terms of the generic device dma_ one */
111 #include <asm-generic/pci-dma-compat.h>
113 /* generic pci stuff */
114 #include <asm-generic/pci.h>
115 #define PCIBIOS_MAX_MEM_32 0xffffffff
118 /* Returns the node based on pci bus */
119 static inline int __pcibus_to_node(const struct pci_bus *bus)
121 const struct pci_sysdata *sd = bus->sysdata;
126 static inline const struct cpumask *
127 cpumask_of_pcibus(const struct pci_bus *bus)
131 node = __pcibus_to_node(bus);
132 return (node == -1) ? cpu_online_mask :
133 cpumask_of_node(node);
137 #endif /* _ASM_X86_PCI_H */