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/*
* Copyright (c) 2004 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __KERN_LINUX_LINUX_SYSTEM_HH__
#define __KERN_LINUX_LINUX_SYSTEM_HH__
#include "sim/host.hh"
#include "sim/system.hh"
#include "targetarch/isa_traits.hh"
/**
* MAGIC address where the kernel arguments should go. Defined as
* PARAM in linux kernel alpha-asm.
*/
const Addr PARAM_ADDR = ULL(0xfffffc000030a000);
class ExecContext;
class BreakPCEvent;
class DebugPrintkEvent;
class BreakPCEvent;
class LinuxSkipDelayLoopEvent;
class SkipFuncEvent;
class IdleStartEvent;
class PrintThreadInfo;
/**
* This class contains linux specific system code (Loading, Events, Binning).
* It points to objects that are the system binaries to load and patches them
* appropriately to work in simulator.
*/
class LinuxSystem : public System
{
private:
#ifdef DEBUG
/** Event to halt the simulator if the kernel calls panic() */
BreakPCEvent *kernelPanicEvent;
#endif
/**
* Event to skip determine_cpu_caches() because we don't support
* the IPRs that the code can access to figure out cache sizes
*/
SkipFuncEvent *skipCacheProbeEvent;
/** PC based event to skip the ide_delay_50ms() call */
SkipFuncEvent *skipIdeDelay50msEvent;
/**
* PC based event to skip the dprink() call and emulate its
* functionality
*/
DebugPrintkEvent *debugPrintkEvent;
/**
* Skip calculate_delay_loop() rather than waiting for this to be
* calculated
*/
LinuxSkipDelayLoopEvent *skipDelayLoopEvent;
/**
* Event to print information about thread switches if the trace flag
* Thread is set
*/
PrintThreadInfo *printThreadEvent;
/**
* Event to bin Interrupts seperately from kernel code
*/
InterruptStartEvent *intStartEvent;
/**
* Event to bin Interrupts seperately from kernel code
*/
InterruptEndEvent *intEndEvent;
InterruptEndEvent *intEndEvent2;
InterruptEndEvent *intEndEvent3;
/** Grab the PCBB of the idle process when it starts */
IdleStartEvent *idleStartEvent;
public:
LinuxSystem(Params *p);
~LinuxSystem();
void setDelayLoop(ExecContext *xc);
};
#endif // __KERN_LINUX_LINUX_SYSTEM_HH__
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