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linux-next/include/asm-generic/pci-bridge.h
Bjorn Helgaas dcce6dc486 PCI: add pci_clear_flags()
Add a pci_clear_flags() for cases when we statically initialize
pci_flags, then decide to clear things out later.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-02-23 20:18:56 -07:00

69 lines
1.5 KiB
C

/*
* 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,
};
#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 */