/* MN10300 PCI definitions * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public Licence * as published by the Free Software Foundation; either version * 2 of the Licence, or (at your option) any later version. */ #ifndef _ASM_PCI_H #define _ASM_PCI_H #ifdef __KERNEL__ #include <linux/mm.h> /* for struct page */ #if 0 #define __pcbdebug(FMT, ADDR, ...) \ printk(KERN_DEBUG "PCIBRIDGE[%08x]: "FMT"\n", \ (u32)(ADDR), ##__VA_ARGS__) #define __pcidebug(FMT, BUS, DEVFN, WHERE,...) \ do { \ printk(KERN_DEBUG "PCI[%02x:%02x.%x + %02x]: "FMT"\n", \ (BUS)->number, \ PCI_SLOT(DEVFN), \ PCI_FUNC(DEVFN), \ (u32)(WHERE), ##__VA_ARGS__); \ } while (0) #else #define __pcbdebug(FMT, ADDR, ...) do {} while (0) #define __pcidebug(FMT, BUS, DEVFN, WHERE, ...) do {} while (0) #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 */ #ifdef CONFIG_PCI #define pcibios_assign_all_busses() 1 extern void unit_pci_init(void); #else #define pcibios_assign_all_busses() 0 #endif extern unsigned long pci_mem_start; #define PCIBIOS_MIN_IO 0xBE000004 #define PCIBIOS_MIN_MEM 0xB8000000 void pcibios_set_master(struct pci_dev *dev); void pcibios_penalize_isa_irq(int irq); /* Dynamic DMA mapping stuff. * i386 has everything mapped statically. */ #include <linux/types.h> #include <linux/slab.h> #include <asm/scatterlist.h> #include <linux/string.h> #include <linux/mm.h> #include <asm/io.h> struct pci_dev; /* The PCI address space does 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 (1) /* This is always fine. */ #define pci_dac_dma_supported(pci_dev, mask) (0) /* * These macros should be used after a pci_map_sg call has been done * to get bus addresses of each of the SG entries and their lengths. * You should only work with the number of sg entries pci_map_sg * returns. */ #define sg_dma_address(sg) ((sg)->dma_address) #define sg_dma_len(sg) ((sg)->length) /* Return the index of the PCI controller for device. */ static inline int pci_controller_num(struct pci_dev *dev) { return 0; } #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); #endif /* __KERNEL__ */ /* implement the pci_ DMA API in terms of the generic device dma_ one */ #include <asm-generic/pci-dma-compat.h> /** * pcibios_resource_to_bus - convert resource to PCI bus address * @dev: device which owns this resource * @region: converted bus-centric region (start,end) * @res: resource to convert * * Convert a resource to a PCI device bus address or bus window. */ extern void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, struct resource *res); extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, struct pci_bus_region *region); static inline struct resource * pcibios_select_root(struct pci_dev *pdev, struct resource *res) { struct resource *root = NULL; if (res->flags & IORESOURCE_IO) root = &ioport_resource; if (res->flags & IORESOURCE_MEM) root = &iomem_resource; return root; } #define pcibios_scan_all_fns(a, b) 0 #endif /* _ASM_PCI_H */