arch/ppc64/kernel/iSeries_IoMmTable.h

   1 #ifndef _ISERIES_IOMMTABLE_H
   2 #define _ISERIES_IOMMTABLE_H
   3 /************************************************************************/
   4 /* File iSeries_IoMmTable.h created by Allan Trautman on Dec 12 2001.   */
   5 /************************************************************************/
   6 /* Interfaces for the write/read Io address translation table.          */
   7 /* Copyright (C) 20yy  Allan H Trautman, IBM Corporation                */
   8 /*                                                                      */
   9 /* This program is free software; you can redistribute it and/or modify */
  10 /* it under the terms of the GNU General Public License as published by */
  11 /* the Free Software Foundation; either version 2 of the License, or    */
  12 /* (at your option) any later version.                                  */
  13 /*                                                                      */
  14 /* This program is distributed in the hope that it will be useful,      */
  15 /* but WITHOUT ANY WARRANTY; without even the implied warranty of       */
  16 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        */
  17 /* GNU General Public License for more details.                         */
  18 /*                                                                      */
  19 /* You should have received a copy of the GNU General Public License    */
  20 /* along with this program; if not, write to the:                       */
  21 /* Free Software Foundation, Inc.,                                      */
  22 /* 59 Temple Place, Suite 330,                                          */
  23 /* Boston, MA  02111-1307  USA                                          */
  24 /************************************************************************/
  25 /* Change Activity:                                                     */
  26 /*   Created December 12, 2000                                          */
  27 /*   Ported to ppc64, August 30, 2001                                   */
  28 /* End Change Activity                                                  */
  29 /************************************************************************/
  30
  31 struct pci_dev;
  32 struct iSeries_Device_Node;
  33
  34 extern struct iSeries_Device_Node **iSeries_IoMmTable;
  35 extern u8 *iSeries_IoBarTable;
  36 extern unsigned long iSeries_Base_Io_Memory;
  37 extern unsigned long iSeries_Max_Io_Memory;
  38 extern unsigned long iSeries_Base_Io_Memory;
  39 extern unsigned long iSeries_IoMmTable_Entry_Size;
  40 /*
  41  * iSeries_IoMmTable_Initialize
  42  *
  43  * - Initalizes the Address Translation Table and get it ready for use.
  44  *   Must be called before any client calls any of the other methods.
  45  *
  46  * Parameters: None.
  47  *
  48  * Return: None.
  49  */
  50 extern void iSeries_IoMmTable_Initialize(void);
  51 extern void iSeries_IoMmTable_Status(void);
  52
  53 /*
  54  * iSeries_allocateDeviceBars
  55  *
  56  * - Allocates ALL pci_dev BAR's and updates the resources with the BAR
  57  *   value.  BARS with zero length will not have the resources.  The
  58  *   HvCallPci_getBarParms is used to get the size of the BAR space.
  59  *   It calls iSeries_IoMmTable_AllocateEntry to allocate each entry.
  60  *
  61  * Parameters:
  62  * pci_dev = Pointer to pci_dev structure that will be mapped to pseudo
  63  *           I/O Address.
  64  *
  65  * Return:
  66  *   The pci_dev I/O resources updated with pseudo I/O Addresses.
  67  */
  68 extern void iSeries_allocateDeviceBars(struct pci_dev *);
  69
  70 /*
  71  * iSeries_xlateIoMmAddress
  72  *
  73  * - Translates an I/O Memory address to Device Node that has been the
  74  *   allocated the psuedo I/O Address.
  75  *
  76  * Parameters:
  77  * IoAddress = I/O Memory Address.
  78  *
  79  * Return:
  80  *   An iSeries_Device_Node to the device mapped to the I/O address. The
  81  *   BarNumber and BarOffset are valid if the Device Node is returned.
  82  */
  83 extern struct iSeries_Device_Node *iSeries_xlateIoMmAddress(void *IoAddress);
  84
  85 #endif /* _ISERIES_IOMMTABLE_H */