iseries_iommtable.h

来自「优龙2410linux2.6.8内核源代码」· C头文件 代码 · 共 86 行

#ifndef _ISERIES_IOMMTABLE_H
#define _ISERIES_IOMMTABLE_H
/************************************************************************/
/* File iSeries_IoMmTable.h created by Allan Trautman on Dec 12 2001.   */
/************************************************************************/
/* Interfaces for the write/read Io address translation table.          */
/* Copyright (C) 20yy  Allan H Trautman, IBM Corporation                */
/*                                                                      */
/* 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.                                  */
/*                                                                      */
/* This program is distributed in the hope that it will be useful,      */ 
/* but WITHOUT ANY WARRANTY; without even the implied warranty of       */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        */
/* GNU General Public License for more details.                         */
/*                                                                      */
/* You should have received a copy of the GNU General Public License    */ 
/* along with this program; if not, write to the:                       */
/* Free Software Foundation, Inc.,                                      */ 
/* 59 Temple Place, Suite 330,                                          */ 
/* Boston, MA  02111-1307  USA                                          */
/************************************************************************/
/* Change Activity:                                                     */
/*   Created December 12, 2000                                          */
/*   Ported to ppc64, August 30, 2001                                   */
/* End Change Activity                                                  */
/************************************************************************/

struct pci_dev;
struct iSeries_Device_Node;

extern struct iSeries_Device_Node **iSeries_IoMmTable;
extern u8 *iSeries_IoBarTable;
extern unsigned long iSeries_Base_Io_Memory;
extern unsigned long iSeries_Max_Io_Memory;
extern unsigned long iSeries_Base_Io_Memory;
extern unsigned long iSeries_IoMmTable_Entry_Size;
/*
 * iSeries_IoMmTable_Initialize
 *
 * - Initalizes the Address Translation Table and get it ready for use.
 *   Must be called before any client calls any of the other methods.
 *
 * Parameters: None.
 *
 * Return: None.
 */
extern void iSeries_IoMmTable_Initialize(void);
extern void iSeries_IoMmTable_Status(void);

/*
 * iSeries_allocateDeviceBars
 *
 * - Allocates ALL pci_dev BAR's and updates the resources with the BAR
 *   value.  BARS with zero length will not have the resources.  The
 *   HvCallPci_getBarParms is used to get the size of the BAR space.
 *   It calls iSeries_IoMmTable_AllocateEntry to allocate each entry.
 *
 * Parameters:
 * pci_dev = Pointer to pci_dev structure that will be mapped to pseudo
 *           I/O Address.
 *
 * Return:
 *   The pci_dev I/O resources updated with pseudo I/O Addresses.
 */
extern void iSeries_allocateDeviceBars(struct pci_dev *);

/*
 * iSeries_xlateIoMmAddress
 *
 * - Translates an I/O Memory address to Device Node that has been the
 *   allocated the psuedo I/O Address.
 *
 * Parameters:
 * IoAddress = I/O Memory Address.
 *
 * Return:
 *   An iSeries_Device_Node to the device mapped to the I/O address. The
 *   BarNumber and BarOffset are valid if the Device Node is returned.
 */
extern struct iSeries_Device_Node *iSeries_xlateIoMmAddress(void *IoAddress);

#endif /* _ISERIES_IOMMTABLE_H */