diff options
Diffstat (limited to 'arch/alpha/vtophys.cc')
| -rw-r--r-- | arch/alpha/vtophys.cc | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/arch/alpha/vtophys.cc b/arch/alpha/vtophys.cc deleted file mode 100644 index 41e9b80a3..000000000 --- a/arch/alpha/vtophys.cc +++ /dev/null @@ -1,162 +0,0 @@ -/* - * Copyright (c) 2002-2005 The Regents of The University of Michigan - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer; - * redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution; - * neither the name of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <string> - -#include "arch/alpha/ev5.hh" -#include "arch/alpha/vtophys.hh" -#include "base/chunk_generator.hh" -#include "base/trace.hh" -#include "cpu/exec_context.hh" -#include "mem/vport.hh" - -using namespace std; -using namespace AlphaISA; - -AlphaISA::PageTableEntry -AlphaISA::kernel_pte_lookup(FunctionalPort *mem, Addr ptbr, AlphaISA::VAddr vaddr) -{ - Addr level1_pte = ptbr + vaddr.level1(); - AlphaISA::PageTableEntry level1 = mem->read<uint64_t>(level1_pte); - if (!level1.valid()) { - DPRINTF(VtoPhys, "level 1 PTE not valid, va = %#\n", vaddr); - return 0; - } - - Addr level2_pte = level1.paddr() + vaddr.level2(); - AlphaISA::PageTableEntry level2 = mem->read<uint64_t>(level2_pte); - if (!level2.valid()) { - DPRINTF(VtoPhys, "level 2 PTE not valid, va = %#x\n", vaddr); - return 0; - } - - Addr level3_pte = level2.paddr() + vaddr.level3(); - AlphaISA::PageTableEntry level3 = mem->read<uint64_t>(level3_pte); - if (!level3.valid()) { - DPRINTF(VtoPhys, "level 3 PTE not valid, va = %#x\n", vaddr); - return 0; - } - return level3; -} - -Addr -AlphaISA::vtophys(Addr vaddr) -{ - Addr paddr = 0; - if (AlphaISA::IsUSeg(vaddr)) - DPRINTF(VtoPhys, "vtophys: invalid vaddr %#x", vaddr); - else if (AlphaISA::IsK0Seg(vaddr)) - paddr = AlphaISA::K0Seg2Phys(vaddr); - else - panic("vtophys: ptbr is not set on virtual lookup"); - - DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr); - - return paddr; -} - -Addr -AlphaISA::vtophys(ExecContext *xc, Addr addr) -{ - AlphaISA::VAddr vaddr = addr; - Addr ptbr = xc->readMiscReg(AlphaISA::IPR_PALtemp20); - Addr paddr = 0; - //@todo Andrew couldn't remember why he commented some of this code - //so I put it back in. Perhaps something to do with gdb debugging? - if (AlphaISA::PcPAL(vaddr) && (vaddr < EV5::PalMax)) { - paddr = vaddr & ~ULL(1); - } else { - if (AlphaISA::IsK0Seg(vaddr)) { - paddr = AlphaISA::K0Seg2Phys(vaddr); - } else if (!ptbr) { - paddr = vaddr; - } else { - AlphaISA::PageTableEntry pte = - kernel_pte_lookup(xc->getPhysPort(), ptbr, vaddr); - if (pte.valid()) - paddr = pte.paddr() | vaddr.offset(); - } - } - - - DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr); - - return paddr; -} - - -void -AlphaISA::CopyOut(ExecContext *xc, void *dest, Addr src, size_t cplen) -{ - uint8_t *dst = (uint8_t *)dest; - VirtualPort *vp = xc->getVirtPort(xc); - - vp->readBlob(src, dst, cplen); - - xc->delVirtPort(vp); - -} - -void -AlphaISA::CopyIn(ExecContext *xc, Addr dest, void *source, size_t cplen) -{ - uint8_t *src = (uint8_t *)source; - VirtualPort *vp = xc->getVirtPort(xc); - - vp->writeBlob(dest, src, cplen); - - xc->delVirtPort(vp); -} - -void -AlphaISA::CopyStringOut(ExecContext *xc, char *dst, Addr vaddr, size_t maxlen) -{ - int len = 0; - VirtualPort *vp = xc->getVirtPort(xc); - - do { - vp->readBlob(vaddr++, (uint8_t*)dst++, 1); - len++; - } while (len < maxlen && dst[len] != 0 ); - - xc->delVirtPort(vp); - dst[len] = 0; -} - -void -AlphaISA::CopyStringIn(ExecContext *xc, char *src, Addr vaddr) -{ - VirtualPort *vp = xc->getVirtPort(xc); - for (ChunkGenerator gen(vaddr, strlen(src), AlphaISA::PageBytes); !gen.done(); - gen.next()) - { - vp->writeBlob(gen.addr(), (uint8_t*)src, gen.size()); - src += gen.size(); - } - xc->delVirtPort(vp); -} |