1/* 2 * Copyright (c) 2002-2005 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: Nathan Binkert 29 * Steve Reinhardt 30 * Ali Saidi 31 */ 32 33#include <string> 34 35#include "arch/alpha/ev5.hh" 36#include "arch/alpha/vtophys.hh" 37#include "base/chunk_generator.hh" 38#include "base/trace.hh"
| 1/* 2 * Copyright (c) 2002-2005 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: Nathan Binkert 29 * Steve Reinhardt 30 * Ali Saidi 31 */ 32 33#include <string> 34 35#include "arch/alpha/ev5.hh" 36#include "arch/alpha/vtophys.hh" 37#include "base/chunk_generator.hh" 38#include "base/trace.hh"
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39#include "cpu/exec_context.hh"
| 39#include "cpu/thread_context.hh"
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40#include "mem/vport.hh" 41 42using namespace std; 43using namespace AlphaISA; 44 45AlphaISA::PageTableEntry 46AlphaISA::kernel_pte_lookup(FunctionalPort *mem, Addr ptbr, AlphaISA::VAddr vaddr) 47{ 48 Addr level1_pte = ptbr + vaddr.level1(); 49 AlphaISA::PageTableEntry level1 = mem->read<uint64_t>(level1_pte); 50 if (!level1.valid()) { 51 DPRINTF(VtoPhys, "level 1 PTE not valid, va = %#\n", vaddr); 52 return 0; 53 } 54 55 Addr level2_pte = level1.paddr() + vaddr.level2(); 56 AlphaISA::PageTableEntry level2 = mem->read<uint64_t>(level2_pte); 57 if (!level2.valid()) { 58 DPRINTF(VtoPhys, "level 2 PTE not valid, va = %#x\n", vaddr); 59 return 0; 60 } 61 62 Addr level3_pte = level2.paddr() + vaddr.level3(); 63 AlphaISA::PageTableEntry level3 = mem->read<uint64_t>(level3_pte); 64 if (!level3.valid()) { 65 DPRINTF(VtoPhys, "level 3 PTE not valid, va = %#x\n", vaddr); 66 return 0; 67 } 68 return level3; 69} 70 71Addr 72AlphaISA::vtophys(Addr vaddr) 73{ 74 Addr paddr = 0; 75 if (AlphaISA::IsUSeg(vaddr)) 76 DPRINTF(VtoPhys, "vtophys: invalid vaddr %#x", vaddr); 77 else if (AlphaISA::IsK0Seg(vaddr)) 78 paddr = AlphaISA::K0Seg2Phys(vaddr); 79 else 80 panic("vtophys: ptbr is not set on virtual lookup"); 81 82 DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr); 83 84 return paddr; 85} 86 87Addr
| 40#include "mem/vport.hh" 41 42using namespace std; 43using namespace AlphaISA; 44 45AlphaISA::PageTableEntry 46AlphaISA::kernel_pte_lookup(FunctionalPort *mem, Addr ptbr, AlphaISA::VAddr vaddr) 47{ 48 Addr level1_pte = ptbr + vaddr.level1(); 49 AlphaISA::PageTableEntry level1 = mem->read<uint64_t>(level1_pte); 50 if (!level1.valid()) { 51 DPRINTF(VtoPhys, "level 1 PTE not valid, va = %#\n", vaddr); 52 return 0; 53 } 54 55 Addr level2_pte = level1.paddr() + vaddr.level2(); 56 AlphaISA::PageTableEntry level2 = mem->read<uint64_t>(level2_pte); 57 if (!level2.valid()) { 58 DPRINTF(VtoPhys, "level 2 PTE not valid, va = %#x\n", vaddr); 59 return 0; 60 } 61 62 Addr level3_pte = level2.paddr() + vaddr.level3(); 63 AlphaISA::PageTableEntry level3 = mem->read<uint64_t>(level3_pte); 64 if (!level3.valid()) { 65 DPRINTF(VtoPhys, "level 3 PTE not valid, va = %#x\n", vaddr); 66 return 0; 67 } 68 return level3; 69} 70 71Addr 72AlphaISA::vtophys(Addr vaddr) 73{ 74 Addr paddr = 0; 75 if (AlphaISA::IsUSeg(vaddr)) 76 DPRINTF(VtoPhys, "vtophys: invalid vaddr %#x", vaddr); 77 else if (AlphaISA::IsK0Seg(vaddr)) 78 paddr = AlphaISA::K0Seg2Phys(vaddr); 79 else 80 panic("vtophys: ptbr is not set on virtual lookup"); 81 82 DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr); 83 84 return paddr; 85} 86 87Addr
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88AlphaISA::vtophys(ExecContext *xc, Addr addr)
| 88AlphaISA::vtophys(ThreadContext *tc, Addr addr)
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89{ 90 AlphaISA::VAddr vaddr = addr;
| 89{ 90 AlphaISA::VAddr vaddr = addr;
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91 Addr ptbr = xc->readMiscReg(AlphaISA::IPR_PALtemp20);
| 91 Addr ptbr = tc->readMiscReg(AlphaISA::IPR_PALtemp20);
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92 Addr paddr = 0; 93 //@todo Andrew couldn't remember why he commented some of this code 94 //so I put it back in. Perhaps something to do with gdb debugging? 95 if (AlphaISA::PcPAL(vaddr) && (vaddr < EV5::PalMax)) { 96 paddr = vaddr & ~ULL(1); 97 } else { 98 if (AlphaISA::IsK0Seg(vaddr)) { 99 paddr = AlphaISA::K0Seg2Phys(vaddr); 100 } else if (!ptbr) { 101 paddr = vaddr; 102 } else { 103 AlphaISA::PageTableEntry pte =
| 92 Addr paddr = 0; 93 //@todo Andrew couldn't remember why he commented some of this code 94 //so I put it back in. Perhaps something to do with gdb debugging? 95 if (AlphaISA::PcPAL(vaddr) && (vaddr < EV5::PalMax)) { 96 paddr = vaddr & ~ULL(1); 97 } else { 98 if (AlphaISA::IsK0Seg(vaddr)) { 99 paddr = AlphaISA::K0Seg2Phys(vaddr); 100 } else if (!ptbr) { 101 paddr = vaddr; 102 } else { 103 AlphaISA::PageTableEntry pte =
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104 kernel_pte_lookup(xc->getPhysPort(), ptbr, vaddr);
| 104 kernel_pte_lookup(tc->getPhysPort(), ptbr, vaddr);
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105 if (pte.valid()) 106 paddr = pte.paddr() | vaddr.offset(); 107 } 108 } 109 110 111 DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr); 112 113 return paddr; 114} 115 116 117void
| 105 if (pte.valid()) 106 paddr = pte.paddr() | vaddr.offset(); 107 } 108 } 109 110 111 DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr); 112 113 return paddr; 114} 115 116 117void
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118AlphaISA::CopyOut(ExecContext *xc, void *dest, Addr src, size_t cplen)
| 118AlphaISA::CopyOut(ThreadContext *tc, void *dest, Addr src, size_t cplen)
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119{ 120 uint8_t *dst = (uint8_t *)dest;
| 119{ 120 uint8_t *dst = (uint8_t *)dest;
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121 VirtualPort *vp = xc->getVirtPort(xc);
| 121 VirtualPort *vp = tc->getVirtPort(tc);
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122 123 vp->readBlob(src, dst, cplen); 124
| 122 123 vp->readBlob(src, dst, cplen); 124
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125 xc->delVirtPort(vp);
| 125 tc->delVirtPort(vp);
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126 127} 128 129void
| 126 127} 128 129void
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130AlphaISA::CopyIn(ExecContext *xc, Addr dest, void *source, size_t cplen)
| 130AlphaISA::CopyIn(ThreadContext *tc, Addr dest, void *source, size_t cplen)
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131{ 132 uint8_t *src = (uint8_t *)source;
| 131{ 132 uint8_t *src = (uint8_t *)source;
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133 VirtualPort *vp = xc->getVirtPort(xc);
| 133 VirtualPort *vp = tc->getVirtPort(tc);
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134 135 vp->writeBlob(dest, src, cplen); 136
| 134 135 vp->writeBlob(dest, src, cplen); 136
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137 xc->delVirtPort(vp);
| 137 tc->delVirtPort(vp);
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138} 139 140void
| 138} 139 140void
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141AlphaISA::CopyStringOut(ExecContext *xc, char *dst, Addr vaddr, size_t maxlen)
| 141AlphaISA::CopyStringOut(ThreadContext *tc, char *dst, Addr vaddr, size_t maxlen)
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142{ 143 int len = 0;
| 142{ 143 int len = 0;
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144 VirtualPort *vp = xc->getVirtPort(xc);
| 144 VirtualPort *vp = tc->getVirtPort(tc);
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145 146 do { 147 vp->readBlob(vaddr++, (uint8_t*)dst++, 1); 148 len++; 149 } while (len < maxlen && dst[len] != 0 ); 150
| 145 146 do { 147 vp->readBlob(vaddr++, (uint8_t*)dst++, 1); 148 len++; 149 } while (len < maxlen && dst[len] != 0 ); 150
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151 xc->delVirtPort(vp);
| 151 tc->delVirtPort(vp);
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152 dst[len] = 0; 153} 154 155void
| 152 dst[len] = 0; 153} 154 155void
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156AlphaISA::CopyStringIn(ExecContext *xc, char *src, Addr vaddr)
| 156AlphaISA::CopyStringIn(ThreadContext *tc, char *src, Addr vaddr)
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157{
| 157{
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158 VirtualPort *vp = xc->getVirtPort(xc);
| 158 VirtualPort *vp = tc->getVirtPort(tc);
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159 for (ChunkGenerator gen(vaddr, strlen(src), AlphaISA::PageBytes); !gen.done(); 160 gen.next()) 161 { 162 vp->writeBlob(gen.addr(), (uint8_t*)src, gen.size()); 163 src += gen.size(); 164 }
| 159 for (ChunkGenerator gen(vaddr, strlen(src), AlphaISA::PageBytes); !gen.done(); 160 gen.next()) 161 { 162 vp->writeBlob(gen.addr(), (uint8_t*)src, gen.size()); 163 src += gen.size(); 164 }
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165 xc->delVirtPort(vp);
| 165 tc->delVirtPort(vp);
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166}
| 166}
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