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 void *iommu; /* IOMMU private data */
20 #ifdef CONFIG_XEN_PCIDEV_FRONTEND
21 struct pcifront_device *pdev;
25 extern int pci_routeirq;
26 extern int noioapicquirk;
27 extern int noioapicreroute;
29 /* scan a bus after allocating a pci_sysdata for it */
30 extern struct pci_bus *pci_scan_bus_on_node(int busno, struct pci_ops *ops,
32 extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
36 #ifdef CONFIG_PCI_DOMAINS
37 static inline int pci_domain_nr(struct pci_bus *bus)
39 struct pci_sysdata *sd = bus->sysdata;
43 static inline int pci_proc_domain(struct pci_bus *bus)
45 return pci_domain_nr(bus);
49 /* Can be used to override the logic in pci_scan_bus for skipping
50 already-configured bus numbers - to be used for buggy BIOSes
51 or architectures with incomplete PCI setup by the loader */
53 extern unsigned int pcibios_assign_all_busses(void);
54 extern int pci_legacy_init(void);
56 # define x86_default_pci_init pci_acpi_init
58 # define x86_default_pci_init pci_legacy_init
61 # define pcibios_assign_all_busses() 0
62 # define x86_default_pci_init NULL
65 #include <asm/hypervisor.h>
66 #define pcibios_scan_all_fns(a, b) (!is_initial_xendomain())
68 extern unsigned long pci_mem_start;
69 #define PCIBIOS_MIN_IO 0x1000
70 #define PCIBIOS_MIN_MEM (pci_mem_start)
72 #define PCIBIOS_MIN_CARDBUS_IO 0x4000
74 extern int pcibios_enabled;
75 void pcibios_config_init(void);
76 struct pci_bus *pcibios_scan_root(int bus);
78 void pcibios_set_master(struct pci_dev *dev);
79 void pcibios_penalize_isa_irq(int irq, int active);
80 struct irq_routing_table *pcibios_get_irq_routing_table(void);
81 int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
85 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
86 enum pci_mmap_state mmap_state,
91 extern void early_quirks(void);
92 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
93 enum pci_dma_burst_strategy *strat,
94 unsigned long *strategy_parameter)
96 *strat = PCI_DMA_BURST_INFINITY;
97 *strategy_parameter = ~0UL;
100 static inline void early_quirks(void) { }
103 extern void pci_iommu_alloc(void);
105 #if defined(CONFIG_PCI_MSI) && !defined(CONFIG_XEN)
106 /* MSI arch specific hooks */
107 static inline int x86_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
109 return x86_msi.setup_msi_irqs(dev, nvec, type);
112 static inline void x86_teardown_msi_irqs(struct pci_dev *dev)
114 x86_msi.teardown_msi_irqs(dev);
117 static inline void x86_teardown_msi_irq(unsigned int irq)
119 x86_msi.teardown_msi_irq(irq);
121 static inline void x86_restore_msi_irqs(struct pci_dev *dev, int irq)
123 x86_msi.restore_msi_irqs(dev, irq);
125 #define arch_setup_msi_irqs x86_setup_msi_irqs
126 #define arch_teardown_msi_irqs x86_teardown_msi_irqs
127 #define arch_teardown_msi_irq x86_teardown_msi_irq
128 #define arch_restore_msi_irqs x86_restore_msi_irqs
129 /* implemented in arch/x86/kernel/apic/io_apic. */
130 int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
131 void native_teardown_msi_irq(unsigned int irq);
132 void native_restore_msi_irqs(struct pci_dev *dev, int irq);
133 /* default to the implementation in drivers/lib/msi.c */
134 #define HAVE_DEFAULT_MSI_TEARDOWN_IRQS
135 #define HAVE_DEFAULT_MSI_RESTORE_IRQS
136 void default_teardown_msi_irqs(struct pci_dev *dev);
137 void default_restore_msi_irqs(struct pci_dev *dev, int irq);
139 #define native_setup_msi_irqs NULL
140 #define native_teardown_msi_irq NULL
141 #define default_teardown_msi_irqs NULL
142 #define default_restore_msi_irqs NULL
145 #define PCI_DMA_BUS_IS_PHYS 0
147 #endif /* __KERNEL__ */
150 #include "../../asm/pci_64.h"
153 /* implement the pci_ DMA API in terms of the generic device dma_ one */
154 #include <asm-generic/pci-dma-compat.h>
156 /* generic pci stuff */
157 #include <asm-generic/pci.h>
158 #define PCIBIOS_MAX_MEM_32 0xffffffff
161 /* Returns the node based on pci bus */
162 static inline int __pcibus_to_node(const struct pci_bus *bus)
164 const struct pci_sysdata *sd = bus->sysdata;
169 static inline const struct cpumask *
170 cpumask_of_pcibus(const struct pci_bus *bus)
174 node = __pcibus_to_node(bus);
175 return (node == -1) ? cpu_online_mask :
176 cpumask_of_node(node);
180 #endif /* _ASM_X86_PCI_H */