pci.h

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/* MN10300 PCI definitions
 *
 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells ([email protected])
 *
 * 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 <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)

/* 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>

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;
}

static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
{
    return channel ? 15 : 14;
}

#endif /* _ASM_PCI_H */