system.hh (5991:3ca926101a5c) system.hh (10280:5b67e1bdf6ad)
1/*
2 * Copyright (c) 2004-2006 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;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Ali Saidi
29 * Lisa Hsu
30 * Nathan Binkert
31 */
32
33#ifndef __ARCH_MIPS_LINUX_SYSTEM_HH__
34#define __ARCH_MIPS_LINUX_SYSTEM_HH__
35
36class ThreadContext;
37
38class BreakPCEvent;
39class IdleStartEvent;
40
41#include "arch/mips/idle_event.hh"
42#include "arch/mips/system.hh"
43#include "kern/linux/events.hh"
44#include "params/LinuxMipsSystem.hh"
45
46/**
47 * This class contains linux specific system code (Loading, Events).
48 * It points to objects that are the system binaries to load and patches them
49 * appropriately to work in simulator.
50 */
51class LinuxMipsSystem : public MipsSystem
52{
53 private:
54 class SkipDelayLoopEvent : public SkipFuncEvent
55 {
56 public:
57 SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr)
58 : SkipFuncEvent(q, desc, addr) {}
59 virtual void process(ThreadContext *tc);
60 };
61
62 class PrintThreadInfo : public PCEvent
63 {
64 public:
65 PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr)
66 : PCEvent(q, desc, addr) {}
67 virtual void process(ThreadContext *tc);
68 };
69
70
71 /**
72 * Addresses defining where the kernel bootloader places various
73 * elements. Details found in include/asm-mips/system.h
74 */
75 Addr KernelStart; // Lookup the symbol swapper_pg_dir
76
77 public:
78 Addr InitStack() const { return KernelStart + 0x02000; }
79 Addr EmptyPGT() const { return KernelStart + 0x04000; }
80 Addr EmptyPGE() const { return KernelStart + 0x08000; }
81 Addr ZeroPGE() const { return KernelStart + 0x0A000; }
82 Addr StartAddr() const { return KernelStart + 0x10000; }
83
84 Addr Param() const { return ZeroPGE() + 0x0; }
85 Addr CommandLine() const { return Param() + 0x0; }
86 Addr InitrdStart() const { return Param() + 0x100; }
87 Addr InitrdSize() const { return Param() + 0x108; }
88 static const int CommandLineSize = 256;
89
1/*
2 * Copyright (c) 2004-2006 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;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Ali Saidi
29 * Lisa Hsu
30 * Nathan Binkert
31 */
32
33#ifndef __ARCH_MIPS_LINUX_SYSTEM_HH__
34#define __ARCH_MIPS_LINUX_SYSTEM_HH__
35
36class ThreadContext;
37
38class BreakPCEvent;
39class IdleStartEvent;
40
41#include "arch/mips/idle_event.hh"
42#include "arch/mips/system.hh"
43#include "kern/linux/events.hh"
44#include "params/LinuxMipsSystem.hh"
45
46/**
47 * This class contains linux specific system code (Loading, Events).
48 * It points to objects that are the system binaries to load and patches them
49 * appropriately to work in simulator.
50 */
51class LinuxMipsSystem : public MipsSystem
52{
53 private:
54 class SkipDelayLoopEvent : public SkipFuncEvent
55 {
56 public:
57 SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr)
58 : SkipFuncEvent(q, desc, addr) {}
59 virtual void process(ThreadContext *tc);
60 };
61
62 class PrintThreadInfo : public PCEvent
63 {
64 public:
65 PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr)
66 : PCEvent(q, desc, addr) {}
67 virtual void process(ThreadContext *tc);
68 };
69
70
71 /**
72 * Addresses defining where the kernel bootloader places various
73 * elements. Details found in include/asm-mips/system.h
74 */
75 Addr KernelStart; // Lookup the symbol swapper_pg_dir
76
77 public:
78 Addr InitStack() const { return KernelStart + 0x02000; }
79 Addr EmptyPGT() const { return KernelStart + 0x04000; }
80 Addr EmptyPGE() const { return KernelStart + 0x08000; }
81 Addr ZeroPGE() const { return KernelStart + 0x0A000; }
82 Addr StartAddr() const { return KernelStart + 0x10000; }
83
84 Addr Param() const { return ZeroPGE() + 0x0; }
85 Addr CommandLine() const { return Param() + 0x0; }
86 Addr InitrdStart() const { return Param() + 0x100; }
87 Addr InitrdSize() const { return Param() + 0x108; }
88 static const int CommandLineSize = 256;
89
90 private:
91#ifndef NDEBUG
92 /** Event to halt the simulator if the kernel calls panic() */
93 BreakPCEvent *kernelPanicEvent;
94
95 /** Event to halt the simulator if the kernel calls die_if_kernel */
96 BreakPCEvent *kernelDieEvent;
97#endif
98
99 /**
100 * Event to skip determine_cpu_caches() because we don't support
101 * the IPRs that the code can access to figure out cache sizes
102 */
103 SkipFuncEvent *skipCacheProbeEvent;
104
105 /** PC based event to skip the ide_delay_50ms() call */
106 SkipFuncEvent *skipIdeDelay50msEvent;
107
108 /**
109 * PC based event to skip the dprink() call and emulate its
110 * functionality
111 */
112 Linux::DebugPrintkEvent *debugPrintkEvent;
113
114 /**
115 * Skip calculate_delay_loop() rather than waiting for this to be
116 * calculated
117 */
118 SkipDelayLoopEvent *skipDelayLoopEvent;
119
120 /**
121 * Event to print information about thread switches if the trace flag
122 * Thread is set
123 */
124 PrintThreadInfo *printThreadEvent;
125
126 /** Grab the PCBB of the idle process when it starts */
127 IdleStartEvent *idleStartEvent;
128
129 public:
130 typedef LinuxMipsSystemParams Params;
131 LinuxMipsSystem(Params *p);
132 ~LinuxMipsSystem();
133
134 void setDelayLoop(ThreadContext *tc);
135};
136
137#endif // __ARCH_MIPS_LINUX_SYSTEM_HH__
90 public:
91 typedef LinuxMipsSystemParams Params;
92 LinuxMipsSystem(Params *p);
93 ~LinuxMipsSystem();
94
95 void setDelayLoop(ThreadContext *tc);
96};
97
98#endif // __ARCH_MIPS_LINUX_SYSTEM_HH__