fs_translating_port_proxy.hh revision 14009:a4b36ce75361
112239Sandreas.sandberg@arm.com/* 212239Sandreas.sandberg@arm.com * Copyright (c) 2011 ARM Limited 312239Sandreas.sandberg@arm.com * All rights reserved 412239Sandreas.sandberg@arm.com * 512239Sandreas.sandberg@arm.com * The license below extends only to copyright in the software and shall 612239Sandreas.sandberg@arm.com * not be construed as granting a license to any other intellectual 712239Sandreas.sandberg@arm.com * property including but not limited to intellectual property relating 812239Sandreas.sandberg@arm.com * to a hardware implementation of the functionality of the software 912239Sandreas.sandberg@arm.com * licensed hereunder. You may use the software subject to the license 1012239Sandreas.sandberg@arm.com * terms below provided that you ensure that this notice is replicated 1112239Sandreas.sandberg@arm.com * unmodified and in its entirety in all distributions of the software, 1212239Sandreas.sandberg@arm.com * modified or unmodified, in source code or in binary form. 1312239Sandreas.sandberg@arm.com * 1412239Sandreas.sandberg@arm.com * Copyright (c) 2006 The Regents of The University of Michigan 1512239Sandreas.sandberg@arm.com * All rights reserved. 1612239Sandreas.sandberg@arm.com * 1712239Sandreas.sandberg@arm.com * Redistribution and use in source and binary forms, with or without 1812239Sandreas.sandberg@arm.com * modification, are permitted provided that the following conditions are 1912239Sandreas.sandberg@arm.com * met: redistributions of source code must retain the above copyright 2012239Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer; 2112239Sandreas.sandberg@arm.com * redistributions in binary form must reproduce the above copyright 2212239Sandreas.sandberg@arm.com * notice, this list of conditions and the following disclaimer in the 2312239Sandreas.sandberg@arm.com * documentation and/or other materials provided with the distribution; 2412239Sandreas.sandberg@arm.com * neither the name of the copyright holders nor the names of its 2512239Sandreas.sandberg@arm.com * contributors may be used to endorse or promote products derived from 2612239Sandreas.sandberg@arm.com * this software without specific prior written permission. 2712239Sandreas.sandberg@arm.com * 2812239Sandreas.sandberg@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2912239Sandreas.sandberg@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 3012239Sandreas.sandberg@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 3112239Sandreas.sandberg@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 3212239Sandreas.sandberg@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 3312239Sandreas.sandberg@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 3412239Sandreas.sandberg@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 3512239Sandreas.sandberg@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 3612239Sandreas.sandberg@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3712239Sandreas.sandberg@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 3812239Sandreas.sandberg@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3912239Sandreas.sandberg@arm.com * 4012239Sandreas.sandberg@arm.com * Authors: Ali Saidi 4112239Sandreas.sandberg@arm.com * Andreas Hansson 4212239Sandreas.sandberg@arm.com */ 4312239Sandreas.sandberg@arm.com 4412239Sandreas.sandberg@arm.com/** 4512239Sandreas.sandberg@arm.com * @file 4612239Sandreas.sandberg@arm.com * TranslatingPortProxy Object Declaration for FS. 4712239Sandreas.sandberg@arm.com * 4812239Sandreas.sandberg@arm.com * Port proxies are used when non structural entities need access to 4912239Sandreas.sandberg@arm.com * the memory system. Proxy objects replace the previous 5012239Sandreas.sandberg@arm.com * FunctionalPort, TranslatingPort and VirtualPort objects, which 5112239Sandreas.sandberg@arm.com * provided the same functionality as the proxies, but were instances 5212239Sandreas.sandberg@arm.com * of ports not corresponding to real structural ports of the 5312239Sandreas.sandberg@arm.com * simulated system. Via the port proxies all the accesses go through 5412239Sandreas.sandberg@arm.com * an actual port and thus are transparent to a potentially 5512239Sandreas.sandberg@arm.com * distributed memory and automatically adhere to the memory map of 5612239Sandreas.sandberg@arm.com * the system. 5712239Sandreas.sandberg@arm.com */ 5812239Sandreas.sandberg@arm.com 5912239Sandreas.sandberg@arm.com#ifndef __MEM_FS_TRANSLATING_PORT_PROXY_HH__ 6012239Sandreas.sandberg@arm.com#define __MEM_FS_TRANSLATING_PORT_PROXY_HH__ 6112239Sandreas.sandberg@arm.com 6212239Sandreas.sandberg@arm.com#include "mem/port_proxy.hh" 6312239Sandreas.sandberg@arm.com 6412239Sandreas.sandberg@arm.comclass ThreadContext; 6512239Sandreas.sandberg@arm.com 6612239Sandreas.sandberg@arm.com/** 6712239Sandreas.sandberg@arm.com * A TranslatingPortProxy in FS mode translates a virtual address to a 6812239Sandreas.sandberg@arm.com * physical address and then calls the read/write functions of the 6912239Sandreas.sandberg@arm.com * port. If a thread context is provided the address can alway be 7012239Sandreas.sandberg@arm.com * translated, If not it can only be translated if it is a simple 7112239Sandreas.sandberg@arm.com * address masking operation (such as alpha super page accesses). 7212239Sandreas.sandberg@arm.com */ 7312239Sandreas.sandberg@arm.comclass FSTranslatingPortProxy : public PortProxy 7412239Sandreas.sandberg@arm.com{ 7512239Sandreas.sandberg@arm.com private: 7612239Sandreas.sandberg@arm.com ThreadContext* _tc; 7712239Sandreas.sandberg@arm.com 7812239Sandreas.sandberg@arm.com public: 7912239Sandreas.sandberg@arm.com 8012239Sandreas.sandberg@arm.com FSTranslatingPortProxy(ThreadContext* tc); 8112239Sandreas.sandberg@arm.com 8212239Sandreas.sandberg@arm.com FSTranslatingPortProxy(MasterPort &port, unsigned int cacheLineSize); 8312239Sandreas.sandberg@arm.com 8412239Sandreas.sandberg@arm.com ~FSTranslatingPortProxy() {} 8512239Sandreas.sandberg@arm.com 8612239Sandreas.sandberg@arm.com /** Version of tryReadblob that translates virt->phys and deals 8712239Sandreas.sandberg@arm.com * with page boundries. */ 8812239Sandreas.sandberg@arm.com bool tryReadBlob(Addr addr, void *p, int size) const override; 8912239Sandreas.sandberg@arm.com 9012239Sandreas.sandberg@arm.com /** Version of tryWriteBlob that translates virt->phys and deals 9112239Sandreas.sandberg@arm.com * with page boundries. */ 9212239Sandreas.sandberg@arm.com bool tryWriteBlob(Addr addr, const void *p, int size) const override; 9312239Sandreas.sandberg@arm.com 9412239Sandreas.sandberg@arm.com /** 9512239Sandreas.sandberg@arm.com * Fill size bytes starting at addr with byte value val. 9612239Sandreas.sandberg@arm.com */ 9712239Sandreas.sandberg@arm.com bool tryMemsetBlob(Addr address, uint8_t v, int size) const override; 9812239Sandreas.sandberg@arm.com}; 9912239Sandreas.sandberg@arm.com 10012239Sandreas.sandberg@arm.comvoid CopyOut(ThreadContext *tc, void *dest, Addr src, size_t cplen); 10112239Sandreas.sandberg@arm.comvoid CopyIn(ThreadContext *tc, Addr dest, const void *source, size_t cplen); 10212239Sandreas.sandberg@arm.comvoid CopyStringOut(ThreadContext *tc, char *dst, Addr vaddr, size_t maxlen); 10312239Sandreas.sandberg@arm.comvoid CopyStringIn(ThreadContext *tc, const char *src, Addr vaddr); 10412239Sandreas.sandberg@arm.com 10512239Sandreas.sandberg@arm.com#endif //__MEM_FS_TRANSLATING_PORT_PROXY_HH__ 10612239Sandreas.sandberg@arm.com