#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_ACPI struct acpi_device *companion; /* ACPI companion device */ #endif #ifdef CONFIG_X86_64 void *iommu; /* IOMMU private data */ #endif }; extern int pci_routeirq; extern int noioapicquirk; extern int noioapicreroute; #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); void pcibios_scan_root(int bus); void pcibios_set_master(struct pci_dev *dev); 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 /* implemented in arch/x86/kernel/apic/io_apic. */ struct msi_desc; 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 setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, unsigned int irq_base, unsigned int irq_offset); #else #define native_setup_msi_irqs NULL #define native_teardown_msi_irq NULL #endif #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) #endif /* __KERNEL__ */ #ifdef CONFIG_X86_64 #include <asm/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> #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 struct pci_setup_rom { struct setup_data data; uint16_t vendor; uint16_t devid; uint64_t pcilen; unsigned long segment; unsigned long bus; unsigned long device; unsigned long function; uint8_t romdata[0]; }; #endif /* _ASM_X86_PCI_H */