a71541a3e8
cpu/pc_event.cc:
mask off lower three bits so we can have an event in palcode
--HG--
extra : convert_revision : 49fcdc5c359ca2bd9149f092f80f77abcd7b20ee
114 lines
3.7 KiB
C++
114 lines
3.7 KiB
C++
/*
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* Copyright (c) 2004 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __KERN_LINUX_LINUX_SYSTEM_HH__
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#define __KERN_LINUX_LINUX_SYSTEM_HH__
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#include "sim/host.hh"
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#include "sim/system.hh"
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#include "targetarch/isa_traits.hh"
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/**
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* MAGIC address where the kernel arguments should go. Defined as
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* PARAM in linux kernel alpha-asm.
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*/
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const Addr PARAM_ADDR = ULL(0xfffffc000030a000);
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class ExecContext;
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class BreakPCEvent;
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class DebugPrintkEvent;
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class BreakPCEvent;
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class LinuxSkipDelayLoopEvent;
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class SkipFuncEvent;
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class IdleStartEvent;
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class PrintThreadInfo;
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/**
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* This class contains linux specific system code (Loading, Events, Binning).
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* It points to objects that are the system binaries to load and patches them
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* appropriately to work in simulator.
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*/
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class LinuxSystem : public System
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{
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private:
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#ifdef DEBUG
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/** Event to halt the simulator if the kernel calls panic() */
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BreakPCEvent *kernelPanicEvent;
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#endif
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/**
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* Event to skip determine_cpu_caches() because we don't support
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* the IPRs that the code can access to figure out cache sizes
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*/
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SkipFuncEvent *skipCacheProbeEvent;
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/** PC based event to skip the ide_delay_50ms() call */
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SkipFuncEvent *skipIdeDelay50msEvent;
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/**
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* PC based event to skip the dprink() call and emulate its
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* functionality
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*/
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DebugPrintkEvent *debugPrintkEvent;
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/**
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* Skip calculate_delay_loop() rather than waiting for this to be
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* calculated
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*/
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LinuxSkipDelayLoopEvent *skipDelayLoopEvent;
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/**
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* Event to print information about thread switches if the trace flag
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* Thread is set
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*/
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PrintThreadInfo *printThreadEvent;
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/**
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* Event to bin Interrupts seperately from kernel code
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*/
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InterruptStartEvent *intStartEvent;
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/**
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* Event to bin Interrupts seperately from kernel code
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*/
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InterruptEndEvent *intEndEvent;
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InterruptEndEvent *intEndEvent2;
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InterruptEndEvent *intEndEvent3;
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/** Grab the PCBB of the idle process when it starts */
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IdleStartEvent *idleStartEvent;
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public:
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LinuxSystem(Params *p);
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~LinuxSystem();
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void setDelayLoop(ExecContext *xc);
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};
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#endif // __KERN_LINUX_LINUX_SYSTEM_HH__
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