mmu.hh

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#ifndef __ARCH_GENERIC_MMU_HH__
#define __ARCH_GENERIC_MMU_HH__
 
#include "arch/generic/tlb.hh"
 
#include "params/BaseMMU.hh"
 
class BaseMMU : public SimObject
{
  protected:
    typedef BaseMMUParams Params;
 
    BaseMMU(const Params &p)
      : SimObject(p), dtb(p.dtb), itb(p.itb)
    {}
 
    BaseTLB*
    getTlb(BaseTLB::Mode mode) const
    {
        if (mode == BaseTLB::Execute)
            return itb;
        else
            return dtb;
    }
 
  public:
    void
    flushAll()
    {
        dtb->flushAll();
        itb->flushAll();
    }
 
    void
    demapPage(Addr vaddr, uint64_t asn)
    {
        itb->demapPage(vaddr, asn);
        dtb->demapPage(vaddr, asn);
    }
 
    Fault
    translateAtomic(const RequestPtr &req, ThreadContext *tc,
                    BaseTLB::Mode mode)
    {
        return getTlb(mode)->translateAtomic(req, tc, mode);
    }
 
    void
    translateTiming(const RequestPtr &req, ThreadContext *tc,
                    BaseTLB::Translation *translation, BaseTLB::Mode mode)
    {
        return getTlb(mode)->translateTiming(req, tc, translation, mode);
    }
 
    Fault
    translateFunctional(const RequestPtr &req, ThreadContext *tc,
                        BaseTLB::Mode mode)
    {
        return getTlb(mode)->translateFunctional(req, tc, mode);
    }
 
    Fault
    finalizePhysical(const RequestPtr &req, ThreadContext *tc,
                     BaseTLB::Mode mode) const
    {
        return getTlb(mode)->finalizePhysical(req, tc, mode);
    }
 
    virtual void takeOverFrom(BaseMMU *old_mmu);
 
  public:
    BaseTLB* dtb;
    BaseTLB* itb;
};
 
#endif