| /* |
| * Copyright (c) 2004-2006 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. |
| * |
| * Authors: Ali Saidi |
| * Lisa Hsu |
| * Nathan Binkert |
| */ |
| |
| #ifndef __ARCH_ALPHA_LINUX_SYSTEM_HH__ |
| #define __ARCH_ALPHA_LINUX_SYSTEM_HH__ |
| |
| class ThreadContext; |
| |
| class BreakPCEvent; |
| class IdleStartEvent; |
| |
| #include "arch/alpha/idle_event.hh" |
| #include "arch/alpha/system.hh" |
| #include "kern/linux/events.hh" |
| #include "params/LinuxAlphaSystem.hh" |
| |
| /** |
| * This class contains linux specific system code (Loading, Events). |
| * It points to objects that are the system binaries to load and patches them |
| * appropriately to work in simulator. |
| */ |
| class LinuxAlphaSystem : public AlphaSystem |
| { |
| private: |
| struct SkipDelayLoopEvent : public SkipFuncEvent |
| { |
| SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr) |
| : SkipFuncEvent(q, desc, addr) {} |
| virtual void process(ThreadContext *tc); |
| }; |
| |
| struct PrintThreadInfo : public PCEvent |
| { |
| PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr) |
| : PCEvent(q, desc, addr) {} |
| virtual void process(ThreadContext *tc); |
| }; |
| |
| /** |
| * Addresses defining where the kernel bootloader places various |
| * elements. Details found in include/asm-alpha/system.h |
| */ |
| Addr KernelStart; // Lookup the symbol swapper_pg_dir |
| |
| public: |
| Addr InitStack() const { return KernelStart + 0x02000; } |
| Addr EmptyPGT() const { return KernelStart + 0x04000; } |
| Addr EmptyPGE() const { return KernelStart + 0x08000; } |
| Addr ZeroPGE() const { return KernelStart + 0x0A000; } |
| Addr StartAddr() const { return KernelStart + 0x10000; } |
| |
| Addr Param() const { return ZeroPGE() + 0x0; } |
| Addr CommandLine() const { return Param() + 0x0; } |
| Addr InitrdStart() const { return Param() + 0x100; } |
| Addr InitrdSize() const { return Param() + 0x108; } |
| static const int CommandLineSize = 256; |
| |
| private: |
| #ifndef NDEBUG |
| /** 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 |
| */ |
| Linux::DebugPrintkEvent *debugPrintkEvent; |
| |
| /** |
| * Skip calculate_delay_loop() rather than waiting for this to be |
| * calculated |
| */ |
| SkipDelayLoopEvent *skipDelayLoopEvent; |
| |
| /** |
| * Event to print information about thread switches if the trace flag |
| * Thread is set |
| */ |
| PrintThreadInfo *printThreadEvent; |
| |
| /** Grab the PCBB of the idle process when it starts */ |
| IdleStartEvent *idleStartEvent; |
| |
| protected: |
| /** Setup all the function events. Must be done after init() for Alpha since |
| * fixFuncEvent() requires a function port |
| */ |
| virtual void setupFuncEvents(); |
| |
| public: |
| typedef LinuxAlphaSystemParams Params; |
| LinuxAlphaSystem(Params *p); |
| ~LinuxAlphaSystem(); |
| |
| /** |
| * Initialise the system |
| */ |
| virtual void initState(); |
| |
| void setDelayLoop(ThreadContext *tc); |
| |
| const Params *params() const { return (const Params *)_params; } |
| }; |
| |
| #endif // __ARCH_ALPHA_LINUX_SYSTEM_HH__ |