#ifndef __ALPHA_PCI_H #define __ALPHA_PCI_H #ifdef __KERNEL__ #include <linux/spinlock.h> #include <linux/dma-mapping.h> #include <asm/scatterlist.h> #include <asm/machvec.h> /* * The following structure is used to manage multiple PCI busses. */ struct pci_dev; struct pci_bus; struct resource; struct pci_iommu_arena; struct page; /* A controller. Used to manage multiple PCI busses. */ struct pci_controller { struct pci_controller *next; struct pci_bus *bus; struct resource *io_space; struct resource *mem_space; /* The following are for reporting to userland. The invariant is that if we report a BWX-capable dense memory, we do not report a sparse memory at all, even if it exists. */ unsigned long sparse_mem_base; unsigned long dense_mem_base; unsigned long sparse_io_base; unsigned long dense_io_base; /* This one's for the kernel only. It's in KSEG somewhere. */ unsigned long config_space_base; unsigned int index; /* For compatibility with current (as of July 2003) pciutils and XFree86. Eventually will be removed. */ unsigned int need_domain_info; struct pci_iommu_arena *sg_pci; struct pci_iommu_arena *sg_isa; void *sysdata; }; /* Override the logic in pci_scan_bus for skipping already-configured bus numbers. */ #define pcibios_assign_all_busses() 1 #define PCIBIOS_MIN_IO alpha_mv.min_io_address #define PCIBIOS_MIN_MEM alpha_mv.min_mem_address extern void pcibios_set_master(struct pci_dev *dev); extern inline void pcibios_penalize_isa_irq(int irq, int active) { /* We don't do dynamic PCI IRQ allocation */ } /* IOMMU controls. */ /* The PCI address space does not equal the physical memory address space. The networking and block device layers use this boolean for bounce buffer decisions. */ #define PCI_DMA_BUS_IS_PHYS 0 #ifdef CONFIG_PCI /* implement the pci_ DMA API in terms of the generic device dma_ one */ #include <asm-generic/pci-dma-compat.h> static inline void pci_dma_burst_advice(struct pci_dev *pdev, enum pci_dma_burst_strategy *strat, unsigned long *strategy_parameter) { unsigned long cacheline_size; u8 byte; pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte); if (byte == 0) cacheline_size = 1024; else cacheline_size = (int) byte * 4; *strat = PCI_DMA_BURST_BOUNDARY; *strategy_parameter = cacheline_size; } #endif /* TODO: integrate with include/asm-generic/pci.h ? */ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) { return channel ? 15 : 14; } extern void pcibios_resource_to_bus(struct pci_dev *, struct pci_bus_region *, struct resource *); extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, struct pci_bus_region *region); #define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index static inline int pci_proc_domain(struct pci_bus *bus) { struct pci_controller *hose = bus->sysdata; return hose->need_domain_info; } #endif /* __KERNEL__ */ /* Values for the `which' argument to sys_pciconfig_iobase. */ #define IOBASE_HOSE 0 #define IOBASE_SPARSE_MEM 1 #define IOBASE_DENSE_MEM 2 #define IOBASE_SPARSE_IO 3 #define IOBASE_DENSE_IO 4 #define IOBASE_ROOT_BUS 5 #define IOBASE_FROM_HOSE 0x10000 extern struct pci_dev *isa_bridge; extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val, size_t count); extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val, size_t count); extern int pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma, enum pci_mmap_state mmap_state); extern void pci_adjust_legacy_attr(struct pci_bus *bus, enum pci_mmap_state mmap_type); #define HAVE_PCI_LEGACY 1 extern int pci_create_resource_files(struct pci_dev *dev); extern void pci_remove_resource_files(struct pci_dev *dev); #endif /* __ALPHA_PCI_H */