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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 | #ifndef _ASM_X86_PCI_H #define _ASM_X86_PCI_H #include <linux/mm.h> /* for struct page */ #include <linux/types.h> #include <linux/slab.h> #include <linux/string.h> #include <asm/scatterlist.h> #include <asm/io.h> #include <asm/x86_init.h> #ifdef __KERNEL__ struct pci_sysdata { int domain; /* PCI domain */ int node; /* NUMA node */ #ifdef CONFIG_X86_64 void *iommu; /* IOMMU private data */ #endif }; extern int pci_routeirq; extern int noioapicquirk; extern int noioapicreroute; /* scan a bus after allocating a pci_sysdata for it */ extern struct pci_bus *pci_scan_bus_on_node(int busno, struct pci_ops *ops, int node); extern struct pci_bus *pci_scan_bus_with_sysdata(int busno); #ifdef CONFIG_PCI #ifdef CONFIG_PCI_DOMAINS static inline int pci_domain_nr(struct pci_bus *bus) { struct pci_sysdata *sd = bus->sysdata; return sd->domain; } static inline int pci_proc_domain(struct pci_bus *bus) { return pci_domain_nr(bus); } #endif /* Can be used to override the logic in pci_scan_bus for skipping already-configured bus numbers - to be used for buggy BIOSes or architectures with incomplete PCI setup by the loader */ extern unsigned int pcibios_assign_all_busses(void); extern int pci_legacy_init(void); # ifdef CONFIG_ACPI # define x86_default_pci_init pci_acpi_init # else # define x86_default_pci_init pci_legacy_init # endif #else # define pcibios_assign_all_busses() 0 # define x86_default_pci_init NULL #endif extern unsigned long pci_mem_start; #define PCIBIOS_MIN_IO 0x1000 #define PCIBIOS_MIN_MEM (pci_mem_start) #define PCIBIOS_MIN_CARDBUS_IO 0x4000 extern int pcibios_enabled; void pcibios_config_init(void); struct pci_bus *pcibios_scan_root(int bus); void pcibios_set_master(struct pci_dev *dev); void pcibios_penalize_isa_irq(int irq, int active); struct irq_routing_table *pcibios_get_irq_routing_table(void); int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); #define HAVE_PCI_MMAP extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine); #ifdef CONFIG_PCI extern void early_quirks(void); static inline void pci_dma_burst_advice(struct pci_dev *pdev, enum pci_dma_burst_strategy *strat, unsigned long *strategy_parameter) { *strat = PCI_DMA_BURST_INFINITY; *strategy_parameter = ~0UL; } #else static inline void early_quirks(void) { } #endif extern void pci_iommu_alloc(void); #ifdef CONFIG_PCI_MSI /* MSI arch specific hooks */ static inline int x86_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) { return x86_msi.setup_msi_irqs(dev, nvec, type); } static inline void x86_teardown_msi_irqs(struct pci_dev *dev) { x86_msi.teardown_msi_irqs(dev); } static inline void x86_teardown_msi_irq(unsigned int irq) { x86_msi.teardown_msi_irq(irq); } static inline void x86_restore_msi_irqs(struct pci_dev *dev, int irq) { x86_msi.restore_msi_irqs(dev, irq); } #define arch_setup_msi_irqs x86_setup_msi_irqs #define arch_teardown_msi_irqs x86_teardown_msi_irqs #define arch_teardown_msi_irq x86_teardown_msi_irq #define arch_restore_msi_irqs x86_restore_msi_irqs /* implemented in arch/x86/kernel/apic/io_apic. */ int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type); void native_teardown_msi_irq(unsigned int irq); void native_restore_msi_irqs(struct pci_dev *dev, int irq); /* default to the implementation in drivers/lib/msi.c */ #define HAVE_DEFAULT_MSI_TEARDOWN_IRQS #define HAVE_DEFAULT_MSI_RESTORE_IRQS void default_teardown_msi_irqs(struct pci_dev *dev); void default_restore_msi_irqs(struct pci_dev *dev, int irq); #else #define native_setup_msi_irqs NULL #define native_teardown_msi_irq NULL #define default_teardown_msi_irqs NULL #define default_restore_msi_irqs NULL #endif #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) #endif /* __KERNEL__ */ #ifdef CONFIG_X86_64 #include "pci_64.h" #endif /* implement the pci_ DMA API in terms of the generic device dma_ one */ #include <asm-generic/pci-dma-compat.h> /* generic pci stuff */ #include <asm-generic/pci.h> #define PCIBIOS_MAX_MEM_32 0xffffffff #ifdef CONFIG_NUMA /* Returns the node based on pci bus */ static inline int __pcibus_to_node(const struct pci_bus *bus) { const struct pci_sysdata *sd = bus->sysdata; return sd->node; } static inline const struct cpumask * cpumask_of_pcibus(const struct pci_bus *bus) { int node; node = __pcibus_to_node(bus); return (node == -1) ? cpu_online_mask : cpumask_of_node(node); } #endif #endif /* _ASM_X86_PCI_H */ |