system.hh revision 8143:b0b94a7b7c1f
1/* 2 * Copyright (c) 2010 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Copyright (c) 2002-2005 The Regents of The University of Michigan 15 * All rights reserved. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions are 19 * met: redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer; 21 * redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution; 24 * neither the name of the copyright holders nor the names of its 25 * contributors may be used to endorse or promote products derived from 26 * this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39 * 40 * Authors: Ali Saidi 41 */ 42 43#ifndef __ARCH_ARM_LINUX_SYSTEM_HH__ 44#define __ARCH_ARM_LINUX_SYSTEM_HH__ 45 46#include <string> 47#include <vector> 48 49#include "arch/arm/system.hh" 50#include "kern/linux/events.hh" 51#include "params/LinuxArmSystem.hh" 52 53class LinuxArmSystem : public ArmSystem 54{ 55 protected: 56 static const int ParamsList = 0x100; 57 58 public: 59 /** Boilerplate params code */ 60 typedef LinuxArmSystemParams Params; 61 const Params * 62 params() const 63 { 64 return dynamic_cast<const Params *>(_params); 65 } 66 67 LinuxArmSystem(Params *p); 68 ~LinuxArmSystem(); 69 70 void initState(); 71 72 private: 73#ifndef NDEBUG 74 /** Event to halt the simulator if the kernel calls panic() */ 75 BreakPCEvent *kernelPanicEvent; 76#endif 77 /** 78 * PC based event to skip udelay(<time>) calls and quiesce the 79 * processor for the appropriate amount of time. This is not functionally 80 * required but does speed up simulation. 81 */ 82 Linux::UDelayEvent *uDelaySkipEvent; 83 84 /** Another PC based skip event for const_udelay(). Similar to the udelay 85 * skip, but this function precomputes the first multiply that is done 86 * in the generic case since the parameter is known at compile time. 87 * Thus we need to do some division to get back to us. 88 */ 89 Linux::UDelayEvent *constUDelaySkipEvent; 90}; 91 92#endif // __ARCH_ARM_LINUX_SYSTEM_HH__ 93 94