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);
30 static inline int pci_domain_nr(struct pci_bus *bus)
32 struct pci_sysdata *sd = bus->sysdata;
36 static inline int pci_proc_domain(struct pci_bus *bus)
38 return pci_domain_nr(bus);
42 /* Can be used to override the logic in pci_scan_bus for skipping
43 already-configured bus numbers - to be used for buggy BIOSes
44 or architectures with incomplete PCI setup by the loader */
47 extern unsigned int pcibios_assign_all_busses(void);
48 extern int pci_legacy_init(void);
50 # define x86_default_pci_init pci_acpi_init
52 # define x86_default_pci_init pci_legacy_init
55 # define pcibios_assign_all_busses() 0
56 # define x86_default_pci_init NULL
59 extern unsigned long pci_mem_start;
60 #define PCIBIOS_MIN_IO 0x1000
61 #define PCIBIOS_MIN_MEM (pci_mem_start)
63 #define PCIBIOS_MIN_CARDBUS_IO 0x4000
65 void pcibios_config_init(void);
66 struct pci_bus *pcibios_scan_root(int bus);
68 void pcibios_set_master(struct pci_dev *dev);
69 void pcibios_penalize_isa_irq(int irq, int active);
70 struct irq_routing_table *pcibios_get_irq_routing_table(void);
71 int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
75 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
76 enum pci_mmap_state mmap_state,
81 extern void early_quirks(void);
82 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
83 enum pci_dma_burst_strategy *strat,
84 unsigned long *strategy_parameter)
86 *strat = PCI_DMA_BURST_INFINITY;
87 *strategy_parameter = ~0UL;
90 static inline void early_quirks(void) { }
93 extern void pci_iommu_alloc(void);
96 #define arch_setup_msi_irqs arch_setup_msi_irqs
98 #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
100 #if defined(CONFIG_X86_64) || defined(CONFIG_DMAR) || defined(CONFIG_DMA_API_DEBUG)
102 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
103 dma_addr_t ADDR_NAME;
104 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
106 #define pci_unmap_addr(PTR, ADDR_NAME) \
108 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
109 (((PTR)->ADDR_NAME) = (VAL))
110 #define pci_unmap_len(PTR, LEN_NAME) \
112 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
113 (((PTR)->LEN_NAME) = (VAL))
117 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME[0];
118 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) unsigned LEN_NAME[0];
119 #define pci_unmap_addr(PTR, ADDR_NAME) sizeof((PTR)->ADDR_NAME)
120 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
121 do { break; } while (pci_unmap_addr(PTR, ADDR_NAME))
122 #define pci_unmap_len(PTR, LEN_NAME) sizeof((PTR)->LEN_NAME)
123 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
124 do { break; } while (pci_unmap_len(PTR, LEN_NAME))
128 #endif /* __KERNEL__ */
134 void dma32_reserve_bootmem(void);
136 /* implement the pci_ DMA API in terms of the generic device dma_ one */
137 #include <asm-generic/pci-dma-compat.h>
139 /* generic pci stuff */
140 #include <asm-generic/pci.h>
141 #define PCIBIOS_MAX_MEM_32 0xffffffff
144 /* Returns the node based on pci bus */
145 static inline int __pcibus_to_node(const struct pci_bus *bus)
147 const struct pci_sysdata *sd = bus->sysdata;
152 static inline const struct cpumask *
153 cpumask_of_pcibus(const struct pci_bus *bus)
157 node = __pcibus_to_node(bus);
158 return (node == -1) ? cpu_online_mask :
159 cpumask_of_node(node);
163 #endif /* _ASM_X86_PCI_H */