mmu.cc

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 * Copyright (c) 2002-2005 The Regents of The University of Michigan
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 * Copyright (c) 2013 Advanced Micro Devices, Inc.
 * Copyright (c) 2013 Mark D. Hill and David A. Wood
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#include "arch/generic/mmu.hh"
#include "arch/generic/tlb.hh"
 
namespace gem5
{
 
void
BaseMMU::flushAll()
{
    dtb->flushAll();
    itb->flushAll();
}
 
void
BaseMMU::demapPage(Addr vaddr, uint64_t asn)
{
    itb->demapPage(vaddr, asn);
    dtb->demapPage(vaddr, asn);
}
 
Fault
BaseMMU::translateAtomic(const RequestPtr &req, ThreadContext *tc,
                         BaseMMU::Mode mode)
{
    return getTlb(mode)->translateAtomic(req, tc, mode);
}
 
void
BaseMMU::translateTiming(const RequestPtr &req, ThreadContext *tc,
                         BaseMMU::Translation *translation, BaseMMU::Mode mode)
{
    return getTlb(mode)->translateTiming(req, tc, translation, mode);
}
 
Fault
BaseMMU::translateFunctional(const RequestPtr &req, ThreadContext *tc,
                             BaseMMU::Mode mode)
{
    return getTlb(mode)->translateFunctional(req, tc, mode);
}
 
Fault
BaseMMU::finalizePhysical(const RequestPtr &req, ThreadContext *tc,
                          BaseMMU::Mode mode) const
{
    return getTlb(mode)->finalizePhysical(req, tc, mode);
}
 
void
BaseMMU::takeOverFrom(BaseMMU *old_mmu)
{
    Port *old_itb_port = old_mmu->itb->getTableWalkerPort();
    Port *old_dtb_port = old_mmu->dtb->getTableWalkerPort();
    Port *new_itb_port = itb->getTableWalkerPort();
    Port *new_dtb_port = dtb->getTableWalkerPort();
 
    // Move over any table walker ports if they exist
    if (new_itb_port)
        new_itb_port->takeOverFrom(old_itb_port);
    if (new_dtb_port)
        new_dtb_port->takeOverFrom(old_dtb_port);
 
    itb->takeOverFrom(old_mmu->itb);
    dtb->takeOverFrom(old_mmu->dtb);
}
 
} // namespace gem5