tlb.hh (3602:3a279d93f248) tlb.hh (3603:714467743f9b)
1/*
2 * Copyright (c) 2006 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;

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35#include "mem/request.hh"
36#include "sim/faults.hh"
37#include "sim/sim_object.hh"
38
39class ThreadContext;
40
41namespace SparcISA
42{
1/*
2 * Copyright (c) 2006 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;

--- 26 unchanged lines hidden (view full) ---

35#include "mem/request.hh"
36#include "sim/faults.hh"
37#include "sim/sim_object.hh"
38
39class ThreadContext;
40
41namespace SparcISA
42{
43 const int PAddrImplBits = 40;
44 const Addr PAddrImplMask = (ULL(1) << PAddrImplBits) - 1;
45
43 class TLB : public SimObject
44 {
45 public:
46 TLB(const std::string &name, int size) : SimObject(name)
47 {
48 }
49 };
50
51 class ITB : public TLB
52 {
53 public:
54 ITB(const std::string &name, int size) : TLB(name, size)
55 {
56 }
57
58 Fault translate(RequestPtr &req, ThreadContext *tc) const
59 {
60 //For now, always assume the address is already physical.
61 //Also assume that there are 40 bits of physical address space.
46 class TLB : public SimObject
47 {
48 public:
49 TLB(const std::string &name, int size) : SimObject(name)
50 {
51 }
52 };
53
54 class ITB : public TLB
55 {
56 public:
57 ITB(const std::string &name, int size) : TLB(name, size)
58 {
59 }
60
61 Fault translate(RequestPtr &req, ThreadContext *tc) const
62 {
63 //For now, always assume the address is already physical.
64 //Also assume that there are 40 bits of physical address space.
62 req->setPaddr(req->getVaddr() & ((1ULL << 40) - 1));
65 req->setPaddr(req->getVaddr() & PAddrImplMask);
63 return NoFault;
64 }
65 };
66
67 class DTB : public TLB
68 {
69 public:
70 DTB(const std::string &name, int size) : TLB(name, size)

--- 14 unchanged lines hidden --- 		66 return NoFault;
67 }
68 };
69
70 class DTB : public TLB
71 {
72 public:
73 DTB(const std::string &name, int size) : TLB(name, size)

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