1/*
2 * Copyright (c) 2010-2013 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2002-2005 The Regents of The University of Michigan
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Ali Saidi
41 */
42
43#ifndef __ARCH_ARM_LINUX_SYSTEM_HH__
44#define __ARCH_ARM_LINUX_SYSTEM_HH__
45
46#include <cstdio>
47#include <map>
48#include <string>
49#include <vector>
50
51#include "arch/arm/system.hh"
52#include "base/output.hh"
53#include "kern/linux/events.hh"
54#include "params/LinuxArmSystem.hh"
55#include "sim/core.hh"
56
57class DumpStatsPCEvent;
58
59class LinuxArmSystem : public GenericArmSystem
60{
61 protected:
62 DumpStatsPCEvent *dumpStatsPCEvent;
63
64 public:
65 /** Boilerplate params code */
66 typedef LinuxArmSystemParams Params;
67 const Params *
68 params() const
69 {
70 return dynamic_cast<const Params *>(_params);
71 }
72
73 /** When enabled, dump stats/task info on context switches for
74 * Streamline and per-thread cache occupancy studies, etc. */
75 bool enableContextSwitchStatsDump;
76
77 /** This map stores a mapping of OS process IDs to internal Task IDs. The
78 * mapping is done because the stats system doesn't tend to like vectors
79 * that are much greater than 1000 items and the entire process space is
80 * 65K. */
81 std::map<uint32_t, uint32_t> taskMap;
82
83 /** This is a file that is placed in the run directory that prints out
84 * mappings between taskIds and OS process IDs */
| 1/*
2 * Copyright (c) 2010-2013 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2002-2005 The Regents of The University of Michigan
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Ali Saidi
41 */
42
43#ifndef __ARCH_ARM_LINUX_SYSTEM_HH__
44#define __ARCH_ARM_LINUX_SYSTEM_HH__
45
46#include <cstdio>
47#include <map>
48#include <string>
49#include <vector>
50
51#include "arch/arm/system.hh"
52#include "base/output.hh"
53#include "kern/linux/events.hh"
54#include "params/LinuxArmSystem.hh"
55#include "sim/core.hh"
56
57class DumpStatsPCEvent;
58
59class LinuxArmSystem : public GenericArmSystem
60{
61 protected:
62 DumpStatsPCEvent *dumpStatsPCEvent;
63
64 public:
65 /** Boilerplate params code */
66 typedef LinuxArmSystemParams Params;
67 const Params *
68 params() const
69 {
70 return dynamic_cast<const Params *>(_params);
71 }
72
73 /** When enabled, dump stats/task info on context switches for
74 * Streamline and per-thread cache occupancy studies, etc. */
75 bool enableContextSwitchStatsDump;
76
77 /** This map stores a mapping of OS process IDs to internal Task IDs. The
78 * mapping is done because the stats system doesn't tend to like vectors
79 * that are much greater than 1000 items and the entire process space is
80 * 65K. */
81 std::map<uint32_t, uint32_t> taskMap;
82
83 /** This is a file that is placed in the run directory that prints out
84 * mappings between taskIds and OS process IDs */
|
86
87 LinuxArmSystem(Params *p);
88 ~LinuxArmSystem();
89
90 void initState();
91
92 void startup();
93
94 /** This function creates a new task Id for the given pid.
95 * @param tc thread context that is currentyl executing */
96 void mapPid(ThreadContext* tc, uint32_t pid);
97
98 private:
99 /** Event to halt the simulator if the kernel calls panic() */
100 PCEvent *kernelPanicEvent;
101
102 /** Event to halt the simulator if the kernel calls oopses */
103 PCEvent *kernelOopsEvent;
104
105 /**
106 * PC based event to skip udelay(<time>) calls and quiesce the
107 * processor for the appropriate amount of time. This is not functionally
108 * required but does speed up simulation.
109 */
110 Linux::UDelayEvent *uDelaySkipEvent;
111
112 /** Another PC based skip event for const_udelay(). Similar to the udelay
113 * skip, but this function precomputes the first multiply that is done
114 * in the generic case since the parameter is known at compile time.
115 * Thus we need to do some division to get back to us.
116 */
117 Linux::UDelayEvent *constUDelaySkipEvent;
118
119};
120
121class DumpStatsPCEvent : public PCEvent
122{
123 public:
124 DumpStatsPCEvent(PCEventQueue *q, const std::string &desc, Addr addr)
125 : PCEvent(q, desc, addr)
126 {}
127
128 virtual void process(ThreadContext* tc);
129};
130
131
132#endif // __ARCH_ARM_LINUX_SYSTEM_HH__
133
| 86
87 LinuxArmSystem(Params *p);
88 ~LinuxArmSystem();
89
90 void initState();
91
92 void startup();
93
94 /** This function creates a new task Id for the given pid.
95 * @param tc thread context that is currentyl executing */
96 void mapPid(ThreadContext* tc, uint32_t pid);
97
98 private:
99 /** Event to halt the simulator if the kernel calls panic() */
100 PCEvent *kernelPanicEvent;
101
102 /** Event to halt the simulator if the kernel calls oopses */
103 PCEvent *kernelOopsEvent;
104
105 /**
106 * PC based event to skip udelay(<time>) calls and quiesce the
107 * processor for the appropriate amount of time. This is not functionally
108 * required but does speed up simulation.
109 */
110 Linux::UDelayEvent *uDelaySkipEvent;
111
112 /** Another PC based skip event for const_udelay(). Similar to the udelay
113 * skip, but this function precomputes the first multiply that is done
114 * in the generic case since the parameter is known at compile time.
115 * Thus we need to do some division to get back to us.
116 */
117 Linux::UDelayEvent *constUDelaySkipEvent;
118
119};
120
121class DumpStatsPCEvent : public PCEvent
122{
123 public:
124 DumpStatsPCEvent(PCEventQueue *q, const std::string &desc, Addr addr)
125 : PCEvent(q, desc, addr)
126 {}
127
128 virtual void process(ThreadContext* tc);
129};
130
131
132#endif // __ARCH_ARM_LINUX_SYSTEM_HH__
133
|