system.cc (8870:f95c4042f2d0) system.cc (8885:52bbd95b31ed)
1/*
2 * Copyright (c) 2010 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

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53#include "mem/physical.hh"
54
55using namespace ArmISA;
56using namespace Linux;
57
58LinuxArmSystem::LinuxArmSystem(Params *p)
59 : ArmSystem(p)
60{
1/*
2 * Copyright (c) 2010 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

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53#include "mem/physical.hh"
54
55using namespace ArmISA;
56using namespace Linux;
57
58LinuxArmSystem::LinuxArmSystem(Params *p)
59 : ArmSystem(p)
60{
61#ifndef NDEBUG
62 kernelPanicEvent = addKernelFuncEvent<BreakPCEvent>("panic");
63 if (!kernelPanicEvent)
64 panic("could not find kernel symbol \'panic\'");
65#endif
66
67 // With ARM udelay() is #defined to __udelay
68 Addr addr = 0;
69 if (kernelSymtab->findAddress("__udelay", addr)) {
70 uDelaySkipEvent = new UDelayEvent(&pcEventQueue, "__udelay",
71 fixFuncEventAddr(addr), 1000, 0);
72 } else {
73 panic("couldn't find kernel symbol \'udelay\'");
74 }
75
76 // constant arguments to udelay() have some precomputation done ahead of
77 // time. Constant comes from code.
78 if (kernelSymtab->findAddress("__const_udelay", addr)) {
79 constUDelaySkipEvent = new UDelayEvent(&pcEventQueue, "__const_udelay",
80 fixFuncEventAddr(addr), 1000, 107374);
81 } else {
82 panic("couldn't find kernel symbol \'udelay\'");
83 }
84
85 secDataPtrAddr = 0;
86 secDataAddr = 0;
87 penReleaseAddr = 0;
88 kernelSymtab->findAddress("__secondary_data", secDataPtrAddr);
89 kernelSymtab->findAddress("secondary_data", secDataAddr);
90 kernelSymtab->findAddress("pen_release", penReleaseAddr);
91
92 secDataPtrAddr &= ~ULL(0x7F);
93 secDataAddr &= ~ULL(0x7F);
94 penReleaseAddr &= ~ULL(0x7F);
61}
62
63bool
64LinuxArmSystem::adderBootUncacheable(Addr a)
65{
66 Addr block = a & ~ULL(0x7F);
67 if (block == secDataPtrAddr || block == secDataAddr ||
68 block == penReleaseAddr)

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111 offset += ad->copyOut(boot_data + offset);
112 offset += an->copyOut(boot_data + offset);
113
114 DPRINTF(Loader, "Boot atags was %d bytes in total\n", size << 2);
115 DDUMP(Loader, boot_data, size << 2);
116
117 physProxy.writeBlob(params()->atags_addr, boot_data, size << 2);
118
95}
96
97bool
98LinuxArmSystem::adderBootUncacheable(Addr a)
99{
100 Addr block = a & ~ULL(0x7F);
101 if (block == secDataPtrAddr || block == secDataAddr ||
102 block == penReleaseAddr)

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145 offset += ad->copyOut(boot_data + offset);
146 offset += an->copyOut(boot_data + offset);
147
148 DPRINTF(Loader, "Boot atags was %d bytes in total\n", size << 2);
149 DDUMP(Loader, boot_data, size << 2);
150
151 physProxy.writeBlob(params()->atags_addr, boot_data, size << 2);
152
119#ifndef NDEBUG
120 kernelPanicEvent = addKernelFuncEvent<BreakPCEvent>("panic");
121 if (!kernelPanicEvent)
122 panic("could not find kernel symbol \'panic\'");
123#endif
124
125 // With ARM udelay() is #defined to __udelay
126 Addr addr = 0;
127 if (kernelSymtab->findAddress("__udelay", addr)) {
128 uDelaySkipEvent = new UDelayEvent(&pcEventQueue, "__udelay",
129 fixFuncEventAddr(addr), 1000, 0);
130 } else {
131 panic("couldn't find kernel symbol \'udelay\'");
132 }
133
134 // constant arguments to udelay() have some precomputation done ahead of
135 // time. Constant comes from code.
136 if (kernelSymtab->findAddress("__const_udelay", addr)) {
137 constUDelaySkipEvent = new UDelayEvent(&pcEventQueue, "__const_udelay",
138 fixFuncEventAddr(addr), 1000, 107374);
139 } else {
140 panic("couldn't find kernel symbol \'udelay\'");
141 }
142
143 secDataPtrAddr = 0;
144 secDataAddr = 0;
145 penReleaseAddr = 0;
146 kernelSymtab->findAddress("__secondary_data", secDataPtrAddr);
147 kernelSymtab->findAddress("secondary_data", secDataAddr);
148 kernelSymtab->findAddress("pen_release", penReleaseAddr);
149
150 secDataPtrAddr &= ~ULL(0x7F);
151 secDataAddr &= ~ULL(0x7F);
152 penReleaseAddr &= ~ULL(0x7F);
153
154 for (int i = 0; i < threadContexts.size(); i++) {
155 threadContexts[i]->setIntReg(0, 0);
156 threadContexts[i]->setIntReg(1, params()->machine_type);
157 threadContexts[i]->setIntReg(2, params()->atags_addr);
158 }
159}
160
161LinuxArmSystem::~LinuxArmSystem()

--- 12 unchanged lines hidden --- 		153 for (int i = 0; i < threadContexts.size(); i++) {
154 threadContexts[i]->setIntReg(0, 0);
155 threadContexts[i]->setIntReg(1, params()->machine_type);
156 threadContexts[i]->setIntReg(2, params()->atags_addr);
157 }
158}
159
160LinuxArmSystem::~LinuxArmSystem()

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