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31 #ifndef __ARCH_SPARC_TLB_HH__
32 #define __ARCH_SPARC_TLB_HH__
34 #include "arch/sparc/tlb_map.hh"
35 #include "base/misc.hh"
36 #include "mem/request.hh"
37 #include "sim/faults.hh"
38 #include "sim/sim_object.hh"
45 class TLB : public SimObject
49 typedef TlbMap::iterator MapIter;
64 VaOutOfRangeJmp = 0x40
74 /** lookup an entry in the TLB based on the partition id, and real bit if
75 * real is true or the partition id, and context id if real is false.
76 * @param va the virtual address not shifted (e.g. bottom 13 bits are 0)
77 * @param paritition_id partition this entry is for
78 * @param real is this a real->phys or virt->phys translation
79 * @param context_id if this is virt->phys what context
80 * @return A pointer to a tlb entry
82 TlbEntry *lookup(Addr va, int partition_id, bool real, int context_id = 0);
84 /** Insert a PTE into the TLB. */
85 void insert(Addr vpn, int partition_id, int context_id, bool real,
86 const PageTableEntry& PTE);
88 /** Given an entry id, read that tlb entries' tag. */
89 uint64_t TagRead(int entry);
91 /** Give an entry id, read that tlb entries' tte */
92 uint64_t TteRead(int entry);
94 /** Remove all entries from the TLB */
97 /** Remove all non-locked entries from the tlb that match partition id. */
98 void demapAll(int partition_id);
100 /** Remove all entries that match a given context/partition id. */
101 void demapContext(int partition_id, int context_id);
103 /** Remve all entries that match a certain partition id, (contextid), and
105 void demapPage(Addr va, int partition_id, bool real, int context_id);
107 /** Checks if the virtual address provided is a valid one. */
108 bool validVirtualAddress(Addr va, bool am);
110 void writeSfsr(ThreadContext *tc, int reg, bool write, ContextType ct,
111 bool se, FaultTypes ft, int asi);
113 void TLB::clearUsedBits();
117 TLB(const std::string &name, int size);
120 virtual void serialize(std::ostream &os);
121 virtual void unserialize(Checkpoint *cp, const std::string §ion);
124 class ITB : public TLB
127 ITB(const std::string &name, int size) : TLB(name, size)
131 Fault translate(RequestPtr &req, ThreadContext *tc);
133 void writeSfsr(ThreadContext *tc, bool write, ContextType ct,
134 bool se, FaultTypes ft, int asi);
137 class DTB : public TLB
140 DTB(const std::string &name, int size) : TLB(name, size)
144 Fault translate(RequestPtr &req, ThreadContext *tc, bool write);
147 void writeSfr(ThreadContext *tc, Addr a, bool write, ContextType ct,
148 bool se, FaultTypes ft, int asi);
154 #endif // __ARCH_SPARC_TLB_HH__