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/system.hh"
42#include "kern/linux/events.hh"
43
44using namespace AlphaISA;
45using namespace Linux;
46
47/**
| 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/system.hh"
42#include "kern/linux/events.hh"
43
44using namespace AlphaISA;
45using namespace Linux;
46
47/**
|
49 * It points to objects that are the system binaries to load and patches them
50 * appropriately to work in simulator.
51 */
52class LinuxAlphaSystem : public AlphaSystem
53{
54 private:
55 class SkipDelayLoopEvent : public SkipFuncEvent
56 {
57 public:
58 SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr)
59 : SkipFuncEvent(q, desc, addr) {}
60 virtual void process(ThreadContext *tc);
61 };
62
63 class PrintThreadInfo : public PCEvent
64 {
65 public:
66 PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr)
67 : PCEvent(q, desc, addr) {}
68 virtual void process(ThreadContext *tc);
69 };
70
71
72 /**
73 * Addresses defining where the kernel bootloader places various
74 * elements. Details found in include/asm-alpha/system.h
75 */
76 Addr KernelStart; // Lookup the symbol swapper_pg_dir
77
78 public:
79 Addr InitStack() const { return KernelStart + 0x02000; }
80 Addr EmptyPGT() const { return KernelStart + 0x04000; }
81 Addr EmptyPGE() const { return KernelStart + 0x08000; }
82 Addr ZeroPGE() const { return KernelStart + 0x0A000; }
83 Addr StartAddr() const { return KernelStart + 0x10000; }
84
85 Addr Param() const { return ZeroPGE() + 0x0; }
86 Addr CommandLine() const { return Param() + 0x0; }
87 Addr InitrdStart() const { return Param() + 0x100; }
88 Addr InitrdSize() const { return Param() + 0x108; }
89 static const int CommandLineSize = 256;
90
91 private:
92#ifndef NDEBUG
93 /** Event to halt the simulator if the kernel calls panic() */
94 BreakPCEvent *kernelPanicEvent;
95
96 /** Event to halt the simulator if the kernel calls die_if_kernel */
97 BreakPCEvent *kernelDieEvent;
98#endif
99
100 /**
101 * Event to skip determine_cpu_caches() because we don't support
102 * the IPRs that the code can access to figure out cache sizes
103 */
104 SkipFuncEvent *skipCacheProbeEvent;
105
106 /** PC based event to skip the ide_delay_50ms() call */
107 SkipFuncEvent *skipIdeDelay50msEvent;
108
109 /**
110 * PC based event to skip the dprink() call and emulate its
111 * functionality
112 */
113 DebugPrintkEvent *debugPrintkEvent;
114
115 /**
116 * Skip calculate_delay_loop() rather than waiting for this to be
117 * calculated
118 */
119 SkipDelayLoopEvent *skipDelayLoopEvent;
120
121 /**
122 * Event to print information about thread switches if the trace flag
123 * Thread is set
124 */
125 PrintThreadInfo *printThreadEvent;
126
| 49 * It points to objects that are the system binaries to load and patches them
50 * appropriately to work in simulator.
51 */
52class LinuxAlphaSystem : public AlphaSystem
53{
54 private:
55 class SkipDelayLoopEvent : public SkipFuncEvent
56 {
57 public:
58 SkipDelayLoopEvent(PCEventQueue *q, const std::string &desc, Addr addr)
59 : SkipFuncEvent(q, desc, addr) {}
60 virtual void process(ThreadContext *tc);
61 };
62
63 class PrintThreadInfo : public PCEvent
64 {
65 public:
66 PrintThreadInfo(PCEventQueue *q, const std::string &desc, Addr addr)
67 : PCEvent(q, desc, addr) {}
68 virtual void process(ThreadContext *tc);
69 };
70
71
72 /**
73 * Addresses defining where the kernel bootloader places various
74 * elements. Details found in include/asm-alpha/system.h
75 */
76 Addr KernelStart; // Lookup the symbol swapper_pg_dir
77
78 public:
79 Addr InitStack() const { return KernelStart + 0x02000; }
80 Addr EmptyPGT() const { return KernelStart + 0x04000; }
81 Addr EmptyPGE() const { return KernelStart + 0x08000; }
82 Addr ZeroPGE() const { return KernelStart + 0x0A000; }
83 Addr StartAddr() const { return KernelStart + 0x10000; }
84
85 Addr Param() const { return ZeroPGE() + 0x0; }
86 Addr CommandLine() const { return Param() + 0x0; }
87 Addr InitrdStart() const { return Param() + 0x100; }
88 Addr InitrdSize() const { return Param() + 0x108; }
89 static const int CommandLineSize = 256;
90
91 private:
92#ifndef NDEBUG
93 /** Event to halt the simulator if the kernel calls panic() */
94 BreakPCEvent *kernelPanicEvent;
95
96 /** Event to halt the simulator if the kernel calls die_if_kernel */
97 BreakPCEvent *kernelDieEvent;
98#endif
99
100 /**
101 * Event to skip determine_cpu_caches() because we don't support
102 * the IPRs that the code can access to figure out cache sizes
103 */
104 SkipFuncEvent *skipCacheProbeEvent;
105
106 /** PC based event to skip the ide_delay_50ms() call */
107 SkipFuncEvent *skipIdeDelay50msEvent;
108
109 /**
110 * PC based event to skip the dprink() call and emulate its
111 * functionality
112 */
113 DebugPrintkEvent *debugPrintkEvent;
114
115 /**
116 * Skip calculate_delay_loop() rather than waiting for this to be
117 * calculated
118 */
119 SkipDelayLoopEvent *skipDelayLoopEvent;
120
121 /**
122 * Event to print information about thread switches if the trace flag
123 * Thread is set
124 */
125 PrintThreadInfo *printThreadEvent;
126
|