diff options
Diffstat (limited to 'src/arch/sparc/tlb.hh')
| -rw-r--r-- | src/arch/sparc/tlb.hh | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/arch/sparc/tlb.hh b/src/arch/sparc/tlb.hh index 34e5f5feb..b5f02c62e 100644 --- a/src/arch/sparc/tlb.hh +++ b/src/arch/sparc/tlb.hh @@ -78,17 +78,25 @@ class TLB : public SimObject Nucleus = 2 }; - + enum TsbPageSize { + Ps0, + Ps1 + }; + public: /** lookup an entry in the TLB based on the partition id, and real bit if * real is true or the partition id, and context id if real is false. * @param va the virtual address not shifted (e.g. bottom 13 bits are 0) * @param paritition_id partition this entry is for * @param real is this a real->phys or virt->phys translation * @param context_id if this is virt->phys what context + * @param update_used should ew update the used bits in the entries on not + * useful if we are trying to do a va->pa without mucking with any state for + * a debug read for example. * @return A pointer to a tlb entry */ - TlbEntry *lookup(Addr va, int partition_id, bool real, int context_id = 0); - + TlbEntry *lookup(Addr va, int partition_id, bool real, int context_id = 0, + bool update_used = true); + protected: /** Insert a PTE into the TLB. */ void insert(Addr vpn, int partition_id, int context_id, bool real, const PageTableEntry& PTE, int entry = -1); @@ -163,12 +171,17 @@ class DTB : public TLB Fault translate(RequestPtr &req, ThreadContext *tc, bool write); Tick doMmuRegRead(ThreadContext *tc, Packet *pkt); Tick doMmuRegWrite(ThreadContext *tc, Packet *pkt); + void GetTsbPtr(ThreadContext *tc, Addr addr, int ctx, Addr *ptrs); private: void writeSfr(ThreadContext *tc, Addr a, bool write, ContextType ct, bool se, FaultTypes ft, int asi); void writeTagAccess(ThreadContext *tc, Addr va, int context); + uint64_t MakeTsbPtr(TsbPageSize ps, uint64_t tag_access, uint64_t c0_tsb, + uint64_t c0_config, uint64_t cX_tsb, uint64_t cX_config); + + TlbEntry *cacheEntry[2]; ASI cacheAsi[2]; }; |