include/asm-generic/pci-bridge.h

   1 /*
   2  * This program is free software; you can redistribute it and/or
   3  * modify it under the terms of the GNU General Public License
   4  * as published by the Free Software Foundation; either version
   5  * 2 of the License, or (at your option) any later version.
   6  */
   7 #ifndef _ASM_GENERIC_PCI_BRIDGE_H
   8 #define _ASM_GENERIC_PCI_BRIDGE_H
   9
  10 #ifdef __KERNEL__
  11
  12 enum {
  13         /* Force re-assigning all resources (ignore firmware
  14          * setup completely)
  15          */
  16         PCI_REASSIGN_ALL_RSRC   = 0x00000001,
  17
  18         /* Re-assign all bus numbers */
  19         PCI_REASSIGN_ALL_BUS    = 0x00000002,
  20
  21         /* Do not try to assign, just use existing setup */
  22         PCI_PROBE_ONLY          = 0x00000004,
  23
  24         /* Don't bother with ISA alignment unless the bridge has
  25          * ISA forwarding enabled
  26          */
  27         PCI_CAN_SKIP_ISA_ALIGN  = 0x00000008,
  28
  29         /* Enable domain numbers in /proc */
  30         PCI_ENABLE_PROC_DOMAINS = 0x00000010,
  31         /* ... except for domain 0 */
  32         PCI_COMPAT_DOMAIN_0     = 0x00000020,
  33
  34         /* PCIe downstream ports are bridges that normally lead to only a
  35          * device 0, but if this is set, we scan all possible devices, not
  36          * just device 0.
  37          */
  38         PCI_SCAN_ALL_PCIE_DEVS  = 0x00000040,
  39 };
  40
  41 #ifdef CONFIG_PCI
  42 extern unsigned int pci_flags;
  43
  44 static inline void pci_set_flags(int flags)
  45 {
  46         pci_flags = flags;
  47 }
  48
  49 static inline void pci_add_flags(int flags)
  50 {
  51         pci_flags |= flags;
  52 }
  53
  54 static inline void pci_clear_flags(int flags)
  55 {
  56         pci_flags &= ~flags;
  57 }
  58
  59 static inline int pci_has_flag(int flag)
  60 {
  61         return pci_flags & flag;
  62 }
  63 #else
  64 static inline void pci_set_flags(int flags) { }
  65 static inline void pci_add_flags(int flags) { }
  66 static inline void pci_clear_flags(int flags) { }
  67 static inline int pci_has_flag(int flag)
  68 {
  69         return 0;
  70 }
  71 #endif  /* CONFIG_PCI */
  72
  73 #endif  /* __KERNEL__ */
  74 #endif  /* _ASM_GENERIC_PCI_BRIDGE_H */