arch/powerpc/platforms/iseries/pci.h

   1 #ifndef _PLATFORMS_ISERIES_PCI_H
   2 #define _PLATFORMS_ISERIES_PCI_H
   3
   4 /*
   5  * Created by Allan Trautman on Tue Feb 20, 2001.
   6  *
   7  * Define some useful macros for the iSeries pci routines.
   8  * Copyright (C) 2001  Allan H Trautman, IBM Corporation
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the:
  22  * Free Software Foundation, Inc.,
  23  * 59 Temple Place, Suite 330,
  24  * Boston, MA  02111-1307  USA
  25  *
  26  * Change Activity:
  27  *   Created Feb 20, 2001
  28  *   Added device reset, March 22, 2001
  29  *   Ported to ppc64, May 25, 2001
  30  * End Change Activity
  31  */
  32
  33 /*
  34  * Decodes Linux DevFn to iSeries DevFn, bridge device, or function.
  35  * For Linux, see PCI_SLOT and PCI_FUNC in include/linux/pci.h
  36  */
  37
  38 #define ISERIES_PCI_AGENTID(idsel, func)        \
  39         (((idsel & 0x0F) << 4) | (func & 0x07))
  40 #define ISERIES_ENCODE_DEVICE(agentid)          \
  41         ((0x10) | ((agentid & 0x20) >> 2) | (agentid & 0x07))
  42
  43 #define ISERIES_GET_DEVICE_FROM_SUBBUS(subbus)          ((subbus >> 5) & 0x7)
  44 #define ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus)        ((subbus >> 2) & 0x7)
  45
  46 struct pci_dev;
  47
  48 #ifdef CONFIG_PCI
  49 extern void     iSeries_pcibios_init(void);
  50 extern void     iSeries_pci_final_fixup(void);
  51 extern void     iSeries_pcibios_fixup_resources(struct pci_dev *dev);
  52 #else
  53 static inline void      iSeries_pcibios_init(void) { }
  54 static inline void      iSeries_pci_final_fixup(void) { }
  55 static inline void      iSeries_pcibios_fixup_resources(struct pci_dev *dev) {}
  56 #endif
  57
  58 #endif /* _PLATFORMS_ISERIES_PCI_H */