system.hh (8885:52bbd95b31ed) system.hh (9557:8666e81607a6)
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_ALPHA_LINUX_SYSTEM_HH__
34#define __ARCH_ALPHA_LINUX_SYSTEM_HH__
35
36class ThreadContext;
37
38class BreakPCEvent;
39class IdleStartEvent;
40
41#include "arch/alpha/idle_event.hh"
42#include "arch/alpha/system.hh"
43#include "kern/linux/events.hh"
44#include "params/LinuxAlphaSystem.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 LinuxAlphaSystem : public AlphaSystem
52{
53 private:
54 struct SkipDelayLoopEvent : public SkipFuncEvent
55 {
56 SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr)
57 : SkipFuncEvent(q, desc, addr) {}
58 virtual void process(ThreadContext *tc);
59 };
60
61 struct PrintThreadInfo : public PCEvent
62 {
63 PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr)
64 : PCEvent(q, desc, addr) {}
65 virtual void process(ThreadContext *tc);
66 };
67
68 /**
69 * Addresses defining where the kernel bootloader places various
70 * elements. Details found in include/asm-alpha/system.h
71 */
72 Addr KernelStart; // Lookup the symbol swapper_pg_dir
73
74 public:
75 Addr InitStack() const { return KernelStart + 0x02000; }
76 Addr EmptyPGT() const { return KernelStart + 0x04000; }
77 Addr EmptyPGE() const { return KernelStart + 0x08000; }
78 Addr ZeroPGE() const { return KernelStart + 0x0A000; }
79 Addr StartAddr() const { return KernelStart + 0x10000; }
80
81 Addr Param() const { return ZeroPGE() + 0x0; }
82 Addr CommandLine() const { return Param() + 0x0; }
83 Addr InitrdStart() const { return Param() + 0x100; }
84 Addr InitrdSize() const { return Param() + 0x108; }
85 static const int CommandLineSize = 256;
86
87 private:
88#ifndef NDEBUG
89 /** Event to halt the simulator if the kernel calls panic() */
90 BreakPCEvent *kernelPanicEvent;
91
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_ALPHA_LINUX_SYSTEM_HH__
34#define __ARCH_ALPHA_LINUX_SYSTEM_HH__
35
36class ThreadContext;
37
38class BreakPCEvent;
39class IdleStartEvent;
40
41#include "arch/alpha/idle_event.hh"
42#include "arch/alpha/system.hh"
43#include "kern/linux/events.hh"
44#include "params/LinuxAlphaSystem.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 LinuxAlphaSystem : public AlphaSystem
52{
53 private:
54 struct SkipDelayLoopEvent : public SkipFuncEvent
55 {
56 SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr)
57 : SkipFuncEvent(q, desc, addr) {}
58 virtual void process(ThreadContext *tc);
59 };
60
61 struct PrintThreadInfo : public PCEvent
62 {
63 PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr)
64 : PCEvent(q, desc, addr) {}
65 virtual void process(ThreadContext *tc);
66 };
67
68 /**
69 * Addresses defining where the kernel bootloader places various
70 * elements. Details found in include/asm-alpha/system.h
71 */
72 Addr KernelStart; // Lookup the symbol swapper_pg_dir
73
74 public:
75 Addr InitStack() const { return KernelStart + 0x02000; }
76 Addr EmptyPGT() const { return KernelStart + 0x04000; }
77 Addr EmptyPGE() const { return KernelStart + 0x08000; }
78 Addr ZeroPGE() const { return KernelStart + 0x0A000; }
79 Addr StartAddr() const { return KernelStart + 0x10000; }
80
81 Addr Param() const { return ZeroPGE() + 0x0; }
82 Addr CommandLine() const { return Param() + 0x0; }
83 Addr InitrdStart() const { return Param() + 0x100; }
84 Addr InitrdSize() const { return Param() + 0x108; }
85 static const int CommandLineSize = 256;
86
87 private:
88#ifndef NDEBUG
89 /** Event to halt the simulator if the kernel calls panic() */
90 BreakPCEvent *kernelPanicEvent;
91
92#if 0
92 /** Event to halt the simulator if the kernel calls die_if_kernel */
93 BreakPCEvent *kernelDieEvent;
94#endif
95
93 /** Event to halt the simulator if the kernel calls die_if_kernel */
94 BreakPCEvent *kernelDieEvent;
95#endif
96
97#endif
98
96 /**
97 * Event to skip determine_cpu_caches() because we don't support
98 * the IPRs that the code can access to figure out cache sizes
99 */
100 SkipFuncEvent *skipCacheProbeEvent;
101
102 /** PC based event to skip the ide_delay_50ms() call */
103 SkipFuncEvent *skipIdeDelay50msEvent;
104
105 /**
106 * PC based event to skip the dprink() call and emulate its
107 * functionality
108 */
109 Linux::DebugPrintkEvent *debugPrintkEvent;
110
111 /**
112 * Skip calculate_delay_loop() rather than waiting for this to be
113 * calculated
114 */
115 SkipDelayLoopEvent *skipDelayLoopEvent;
116
117 /**
118 * Event to print information about thread switches if the trace flag
119 * Thread is set
120 */
121 PrintThreadInfo *printThreadEvent;
122
123 /** Grab the PCBB of the idle process when it starts */
124 IdleStartEvent *idleStartEvent;
125
126 protected:
127 /** Setup all the function events. Must be done after init() for Alpha since
128 * fixFuncEvent() requires a function port
129 */
130 virtual void setupFuncEvents();
131
132 public:
133 typedef LinuxAlphaSystemParams Params;
134 LinuxAlphaSystem(Params *p);
135 ~LinuxAlphaSystem();
136
137 /**
138 * Initialise the system
139 */
140 virtual void initState();
141
142 void setDelayLoop(ThreadContext *tc);
143
144 const Params *params() const { return (const Params *)_params; }
145};
146
147#endif // __ARCH_ALPHA_LINUX_SYSTEM_HH__
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 protected:
130 /** Setup all the function events. Must be done after init() for Alpha since
131 * fixFuncEvent() requires a function port
132 */
133 virtual void setupFuncEvents();
134
135 public:
136 typedef LinuxAlphaSystemParams Params;
137 LinuxAlphaSystem(Params *p);
138 ~LinuxAlphaSystem();
139
140 /**
141 * Initialise the system
142 */
143 virtual void initState();
144
145 void setDelayLoop(ThreadContext *tc);
146
147 const Params *params() const { return (const Params *)_params; }
148};
149
150#endif // __ARCH_ALPHA_LINUX_SYSTEM_HH__