#ifndef __x86_PCI_H #define __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> #ifdef __KERNEL__ struct pci_sysdata { int domain; /* PCI domain */ int node; /* NUMA node */ #ifdef CONFIG_X86_64 void* iommu; /* IOMMU private data */ #endif }; /* scan a bus after allocating a pci_sysdata for it */ extern struct pci_bus *pci_scan_bus_with_sysdata(int busno); 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); } /* 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 */ #ifdef CONFIG_PCI extern unsigned int pcibios_assign_all_busses(void); #else #define pcibios_assign_all_busses() 0 #endif #define pcibios_scan_all_fns(a, b) 0 extern unsigned long pci_mem_start; #define PCIBIOS_MIN_IO 0x1000 #define PCIBIOS_MIN_MEM (pci_mem_start) #define PCIBIOS_MIN_CARDBUS_IO 0x4000 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 #endif /* __KERNEL__ */ #ifdef CONFIG_X86_32 # include "pci_32.h" #else # 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> #ifdef CONFIG_NUMA /* Returns the node based on pci bus */ static inline int __pcibus_to_node(struct pci_bus *bus) { struct pci_sysdata *sd = bus->sysdata; return sd->node; } static inline cpumask_t __pcibus_to_cpumask(struct pci_bus *bus) { return node_to_cpumask(__pcibus_to_node(bus)); } #endif #endif