system.cc (8866:68a4f926ca3f) | 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 --- 41 unchanged lines hidden (view full) --- 50#include "mem/fs_translating_port_proxy.hh" 51 52using namespace std; 53using namespace Linux; 54 55ArmSystem::ArmSystem(Params *p) 56 : System(p), bootldr(NULL) 57{ | 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 --- 41 unchanged lines hidden (view full) --- 50#include "mem/fs_translating_port_proxy.hh" 51 52using namespace std; 53using namespace Linux; 54 55ArmSystem::ArmSystem(Params *p) 56 : System(p), bootldr(NULL) 57{ |
58 if ((p->boot_loader == "") != (p->boot_loader_mem == NULL)) 59 fatal("If boot_loader is specifed, memory to load it must be also.\n"); 60 61 if (p->boot_loader != "") { 62 bootldr = createObjectFile(p->boot_loader); 63 64 if (!bootldr) 65 fatal("Could not read bootloader: %s\n", p->boot_loader); 66 67 bootldr->loadGlobalSymbols(debugSymbolTable); 68 69 } 70 debugPrintkEvent = addKernelFuncEvent<DebugPrintkEvent>("dprintk"); |
|
58} 59 60void 61ArmSystem::initState() 62{ 63 // Moved from the constructor to here since it relies on the 64 // address map being resolved in the interconnect 65 66 // Call the initialisation of the super class 67 System::initState(); 68 69 const Params* p = params(); 70 | 71} 72 73void 74ArmSystem::initState() 75{ 76 // Moved from the constructor to here since it relies on the 77 // address map being resolved in the interconnect 78 79 // Call the initialisation of the super class 80 System::initState(); 81 82 const Params* p = params(); 83 |
71 if ((p->boot_loader == "") != (p->boot_loader_mem == NULL)) 72 fatal("If boot_loader is specifed, memory to load it must be also.\n"); 73 74 if (p->boot_loader != "") { 75 bootldr = createObjectFile(p->boot_loader); 76 77 if (!bootldr) 78 fatal("Could not read bootloader: %s\n", p->boot_loader); 79 | 84 if (bootldr) { |
80 bootldr->loadSections(physProxy); | 85 bootldr->loadSections(physProxy); |
81 bootldr->loadGlobalSymbols(debugSymbolTable); | |
82 83 uint8_t jump_to_bl[] = 84 { 85 0x07, 0xf0, 0xa0, 0xe1 // branch to r7 86 }; 87 physProxy.writeBlob(0x0, jump_to_bl, sizeof(jump_to_bl)); 88 89 inform("Using bootloader at address %#x\n", bootldr->entryPoint()); | 86 87 uint8_t jump_to_bl[] = 88 { 89 0x07, 0xf0, 0xa0, 0xe1 // branch to r7 90 }; 91 physProxy.writeBlob(0x0, jump_to_bl, sizeof(jump_to_bl)); 92 93 inform("Using bootloader at address %#x\n", bootldr->entryPoint()); |
90 } | |
91 | 94 |
92 if (bootldr) { | |
93 // Put the address of the boot loader into r7 so we know 94 // where to branch to after the reset fault 95 // All other values needed by the boot loader to know what to do | 95 // Put the address of the boot loader into r7 so we know 96 // where to branch to after the reset fault 97 // All other values needed by the boot loader to know what to do |
98 if (!p->gic_cpu_addr || !p->flags_addr) 99 fatal("gic_cpu_addr && flags_addr must be set with bootloader\n"); 100 |
|
96 for (int i = 0; i < threadContexts.size(); i++) { 97 threadContexts[i]->setIntReg(3, kernelEntry & loadAddrMask); 98 threadContexts[i]->setIntReg(4, params()->gic_cpu_addr); 99 threadContexts[i]->setIntReg(5, params()->flags_addr); 100 threadContexts[i]->setIntReg(7, bootldr->entryPoint()); 101 } | 101 for (int i = 0; i < threadContexts.size(); i++) { 102 threadContexts[i]->setIntReg(3, kernelEntry & loadAddrMask); 103 threadContexts[i]->setIntReg(4, params()->gic_cpu_addr); 104 threadContexts[i]->setIntReg(5, params()->flags_addr); 105 threadContexts[i]->setIntReg(7, bootldr->entryPoint()); 106 } |
102 if (!p->gic_cpu_addr || !p->flags_addr) 103 fatal("gic_cpu_addr && flags_addr must be set with bootloader\n"); | |
104 } else { 105 // Set the initial PC to be at start of the kernel code 106 threadContexts[0]->pcState(kernelEntry & loadAddrMask); 107 } | 107 } else { 108 // Set the initial PC to be at start of the kernel code 109 threadContexts[0]->pcState(kernelEntry & loadAddrMask); 110 } |
111 |
|
108 for (int i = 0; i < threadContexts.size(); i++) { 109 if (p->midr_regval) { 110 threadContexts[i]->setMiscReg(ArmISA::MISCREG_MIDR, 111 p->midr_regval); 112 } 113 } | 112 for (int i = 0; i < threadContexts.size(); i++) { 113 if (p->midr_regval) { 114 threadContexts[i]->setMiscReg(ArmISA::MISCREG_MIDR, 115 p->midr_regval); 116 } 117 } |
114 115 debugPrintkEvent = addKernelFuncEvent<DebugPrintkEvent>("dprintk"); | |
116} 117 118ArmSystem::~ArmSystem() 119{ 120 if (debugPrintkEvent) 121 delete debugPrintkEvent; 122} 123 124 125ArmSystem * 126ArmSystemParams::create() 127{ 128 return new ArmSystem(this); 129} | 118} 119 120ArmSystem::~ArmSystem() 121{ 122 if (debugPrintkEvent) 123 delete debugPrintkEvent; 124} 125 126 127ArmSystem * 128ArmSystemParams::create() 129{ 130 return new ArmSystem(this); 131} |