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 */