112464Sjang.hanhwi@gmail.com/* 212464Sjang.hanhwi@gmail.com * Copyright (c) 2011, 2017 ARM Limited 312464Sjang.hanhwi@gmail.com * All rights reserved 412464Sjang.hanhwi@gmail.com * 512464Sjang.hanhwi@gmail.com * The license below extends only to copyright in the software and shall 612464Sjang.hanhwi@gmail.com * not be construed as granting a license to any other intellectual 712464Sjang.hanhwi@gmail.com * property including but not limited to intellectual property relating 812464Sjang.hanhwi@gmail.com * to a hardware implementation of the functionality of the software 912464Sjang.hanhwi@gmail.com * licensed hereunder. You may use the software subject to the license 1012464Sjang.hanhwi@gmail.com * terms below provided that you ensure that this notice is replicated 1112464Sjang.hanhwi@gmail.com * unmodified and in its entirety in all distributions of the software, 1212464Sjang.hanhwi@gmail.com * modified or unmodified, in source code or in binary form. 1312464Sjang.hanhwi@gmail.com * 1412464Sjang.hanhwi@gmail.com * Copyright (c) 2003-2005 The Regents of The University of Michigan 1512464Sjang.hanhwi@gmail.com * All rights reserved. 1612464Sjang.hanhwi@gmail.com * 1712464Sjang.hanhwi@gmail.com * Redistribution and use in source and binary forms, with or without 1812464Sjang.hanhwi@gmail.com * modification, are permitted provided that the following conditions are 1912464Sjang.hanhwi@gmail.com * met: redistributions of source code must retain the above copyright 2012464Sjang.hanhwi@gmail.com * notice, this list of conditions and the following disclaimer; 2112464Sjang.hanhwi@gmail.com * redistributions in binary form must reproduce the above copyright 2212464Sjang.hanhwi@gmail.com * notice, this list of conditions and the following disclaimer in the 2312464Sjang.hanhwi@gmail.com * documentation and/or other materials provided with the distribution; 2412464Sjang.hanhwi@gmail.com * neither the name of the copyright holders nor the names of its 2512464Sjang.hanhwi@gmail.com * contributors may be used to endorse or promote products derived from 2612464Sjang.hanhwi@gmail.com * this software without specific prior written permission. 2712464Sjang.hanhwi@gmail.com * 2812464Sjang.hanhwi@gmail.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2912464Sjang.hanhwi@gmail.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 3012464Sjang.hanhwi@gmail.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 3112464Sjang.hanhwi@gmail.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 3212464Sjang.hanhwi@gmail.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 3312464Sjang.hanhwi@gmail.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 3412464Sjang.hanhwi@gmail.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 3512464Sjang.hanhwi@gmail.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 3612464Sjang.hanhwi@gmail.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3712464Sjang.hanhwi@gmail.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 3812464Sjang.hanhwi@gmail.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3912464Sjang.hanhwi@gmail.com * 4012464Sjang.hanhwi@gmail.com * Authors: Nathan Binkert 4112464Sjang.hanhwi@gmail.com */ 4212464Sjang.hanhwi@gmail.com 4312464Sjang.hanhwi@gmail.com#include <fcntl.h> 4412464Sjang.hanhwi@gmail.com#include <stdio.h> 4512464Sjang.hanhwi@gmail.com#include <stdlib.h> 4612464Sjang.hanhwi@gmail.com#include <sys/mman.h> 4712464Sjang.hanhwi@gmail.com#include <sys/stat.h> 4812464Sjang.hanhwi@gmail.com#include <sys/types.h> 4912464Sjang.hanhwi@gmail.com 5012464Sjang.hanhwi@gmail.com#include "m5_mmap.h" 5112464Sjang.hanhwi@gmail.com 5212464Sjang.hanhwi@gmail.comvoid *m5_mem = NULL; 5312464Sjang.hanhwi@gmail.com 5412464Sjang.hanhwi@gmail.comvoid 5512464Sjang.hanhwi@gmail.commap_m5_mem() 5612464Sjang.hanhwi@gmail.com{ 5712464Sjang.hanhwi@gmail.com#ifdef M5OP_ADDR 5812464Sjang.hanhwi@gmail.com int fd; 5912464Sjang.hanhwi@gmail.com 6012464Sjang.hanhwi@gmail.com fd = open("/dev/mem", O_RDWR | O_SYNC); 6112464Sjang.hanhwi@gmail.com if (fd == -1) { 6212464Sjang.hanhwi@gmail.com perror("Can't open /dev/mem"); 6312464Sjang.hanhwi@gmail.com exit(1); 6412464Sjang.hanhwi@gmail.com } 6512464Sjang.hanhwi@gmail.com 6612464Sjang.hanhwi@gmail.com m5_mem = mmap(NULL, 0x10000, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 6712464Sjang.hanhwi@gmail.com M5OP_ADDR); 6812464Sjang.hanhwi@gmail.com if (!m5_mem) { 6912464Sjang.hanhwi@gmail.com perror("Can't mmap /dev/mem"); 7012464Sjang.hanhwi@gmail.com exit(1); 7112464Sjang.hanhwi@gmail.com } 7212464Sjang.hanhwi@gmail.com#endif 7312464Sjang.hanhwi@gmail.com} 74