pci-bridge.h

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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */
#ifndef _ASM_GENERIC_PCI_BRIDGE_H
#define _ASM_GENERIC_PCI_BRIDGE_H

#ifdef __KERNEL__

enum {
    /* Force re-assigning all resources (ignore firmware
     * setup completely)
     */
    PCI_REASSIGN_ALL_RSRC   = 0x00000001,

    /* Re-assign all bus numbers */
    PCI_REASSIGN_ALL_BUS    = 0x00000002,

    /* Do not try to assign, just use existing setup */
    PCI_PROBE_ONLY      = 0x00000004,

    /* Don't bother with ISA alignment unless the bridge has
     * ISA forwarding enabled
     */
    PCI_CAN_SKIP_ISA_ALIGN  = 0x00000008,

    /* Enable domain numbers in /proc */
    PCI_ENABLE_PROC_DOMAINS = 0x00000010,
    /* ... except for domain 0 */
    PCI_COMPAT_DOMAIN_0 = 0x00000020,

    /* PCIe downstream ports are bridges that normally lead to only a
     * device 0, but if this is set, we scan all possible devices, not
     * just device 0.
     */
    PCI_SCAN_ALL_PCIE_DEVS  = 0x00000040,
};

#ifdef CONFIG_PCI
extern unsigned int pci_flags;

static inline void pci_set_flags(int flags)
{
    pci_flags = flags;
}

static inline void pci_add_flags(int flags)
{
    pci_flags |= flags;
}

static inline void pci_clear_flags(int flags)
{
    pci_flags &= ~flags;
}

static inline int pci_has_flag(int flag)
{
    return pci_flags & flag;
}
#else
static inline void pci_set_flags(int flags) { }
static inline void pci_add_flags(int flags) { }
static inline void pci_clear_flags(int flags) { }
static inline int pci_has_flag(int flag)
{
    return 0;
}
#endif  /* CONFIG_PCI */

#endif  /* __KERNEL__ */
#endif  /* _ASM_GENERIC_PCI_BRIDGE_H */