1/*
2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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33
34/** @file
35 * Alpha Console Backdoor Definition
36 */
37
38#include <cstddef>
39#include <string>
40
41#include "arch/alpha/system.hh"
42#include "base/inifile.hh"
43#include "base/str.hh"
44#include "base/trace.hh"
45#include "cpu/base.hh"
46#include "cpu/thread_context.hh"
47#include "debug/AlphaBackdoor.hh"
48#include "dev/alpha/backdoor.hh"
49#include "dev/alpha/tsunami.hh"

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58#include "params/AlphaBackdoor.hh"
59#include "sim/sim_object.hh"
60
61using namespace std;
62using namespace AlphaISA;
63
64AlphaBackdoor::AlphaBackdoor(const Params *p)
65 : BasicPioDevice(p), disk(p->disk), terminal(p->terminal),
66 system(p->system),
67 cpu(p->cpu)
68{
69
70 pioSize = sizeof(struct AlphaAccess);
71
72 alphaAccess = new Access();
73 alphaAccess->last_offset = pioSize - 1;
74

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83 alphaAccess->inputChar = 0;
84 std::memset(alphaAccess->cpuStack, 0, sizeof(alphaAccess->cpuStack));
85
86}
87
88void
89AlphaBackdoor::startup()
90{
91 system->setAlphaAccess(pioAddr);
92 alphaAccess->numCPUs = system->numContexts();
93 alphaAccess->kernStart = system->getKernelStart();
94 alphaAccess->kernEnd = system->getKernelEnd();
95 alphaAccess->entryPoint = system->getKernelEntry();
96 alphaAccess->mem_size = system->physmem->size();
97 alphaAccess->cpuClock = cpu->frequency() / 1000000; // In MHz
98 Tsunami *tsunami = dynamic_cast<Tsunami *>(params()->platform);
99 assert(tsunami);
100 alphaAccess->intrClockFrequency = tsunami->io->frequency();
101}
102
103Tick
104AlphaBackdoor::read(PacketPtr pkt)
105{
106
107 /** XXX Do we want to push the addr munging to a bus brige or something? So
108 * the device has it's physical address and then the bridge adds on whatever

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