1 #ifndef __ALPHA_PCI_H 2 #define __ALPHA_PCI_H 3 4 #ifdef __KERNEL__ 5 6 #include <linux/spinlock.h> 7 #include <linux/dma-mapping.h> 8 #include <linux/scatterlist.h> 9 #include <asm/machvec.h> 10 11 /* 12 * The following structure is used to manage multiple PCI busses. 13 */ 14 15 struct pci_dev; 16 struct pci_bus; 17 struct resource; 18 struct pci_iommu_arena; 19 struct page; 20 21 /* A controller. Used to manage multiple PCI busses. */ 22 23 struct pci_controller { 24 struct pci_controller *next; 25 struct pci_bus *bus; 26 struct resource *io_space; 27 struct resource *mem_space; 28 29 /* The following are for reporting to userland. The invariant is 30 that if we report a BWX-capable dense memory, we do not report 31 a sparse memory at all, even if it exists. */ 32 unsigned long sparse_mem_base; 33 unsigned long dense_mem_base; 34 unsigned long sparse_io_base; 35 unsigned long dense_io_base; 36 37 /* This one's for the kernel only. It's in KSEG somewhere. */ 38 unsigned long config_space_base; 39 40 unsigned int index; 41 /* For compatibility with current (as of July 2003) pciutils 42 and XFree86. Eventually will be removed. */ 43 unsigned int need_domain_info; 44 45 struct pci_iommu_arena *sg_pci; 46 struct pci_iommu_arena *sg_isa; 47 48 void *sysdata; 49 }; 50 51 /* Override the logic in pci_scan_bus for skipping already-configured 52 bus numbers. */ 53 54 #define pcibios_assign_all_busses() 1 55 56 #define PCIBIOS_MIN_IO alpha_mv.min_io_address 57 #define PCIBIOS_MIN_MEM alpha_mv.min_mem_address 58 59 extern void pcibios_set_master(struct pci_dev *dev); 60 61 /* IOMMU controls. */ 62 63 /* The PCI address space does not equal the physical memory address space. 64 The networking and block device layers use this boolean for bounce buffer 65 decisions. */ 66 #define PCI_DMA_BUS_IS_PHYS 0 67 68 /* TODO: integrate with include/asm-generic/pci.h ? */ pci_get_legacy_ide_irq(struct pci_dev * dev,int channel)69 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) 70 { 71 return channel ? 15 : 14; 72 } 73 74 #define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index 75 pci_proc_domain(struct pci_bus * bus)76 static inline int pci_proc_domain(struct pci_bus *bus) 77 { 78 struct pci_controller *hose = bus->sysdata; 79 return hose->need_domain_info; 80 } 81 82 #endif /* __KERNEL__ */ 83 84 /* Values for the `which' argument to sys_pciconfig_iobase. */ 85 #define IOBASE_HOSE 0 86 #define IOBASE_SPARSE_MEM 1 87 #define IOBASE_DENSE_MEM 2 88 #define IOBASE_SPARSE_IO 3 89 #define IOBASE_DENSE_IO 4 90 #define IOBASE_ROOT_BUS 5 91 #define IOBASE_FROM_HOSE 0x10000 92 93 extern struct pci_dev *isa_bridge; 94 95 extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val, 96 size_t count); 97 extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val, 98 size_t count); 99 extern int pci_mmap_legacy_page_range(struct pci_bus *bus, 100 struct vm_area_struct *vma, 101 enum pci_mmap_state mmap_state); 102 extern void pci_adjust_legacy_attr(struct pci_bus *bus, 103 enum pci_mmap_state mmap_type); 104 #define HAVE_PCI_LEGACY 1 105 106 extern int pci_create_resource_files(struct pci_dev *dev); 107 extern void pci_remove_resource_files(struct pci_dev *dev); 108 109 #endif /* __ALPHA_PCI_H */ 110