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authorKevin Lim <ktlim@umich.edu>2006-06-02 18:15:20 -0400
committerKevin Lim <ktlim@umich.edu>2006-06-02 18:15:20 -0400
commit7940c10ace28d5b93a61d4d278e6647e0c497149 (patch)
tree902ac028a61bbcc93485d8efc6e7ba5fe8c47d00 /src/cpu/ozone/null_predictor.hh
parentd4b73086b6b0856c28433b55c8dd5c7b56a1b6df (diff)
downloadgem5-7940c10ace28d5b93a61d4d278e6647e0c497149.tar.xz
Fixes to get compiling to work. This is mainly fixing up some includes; changing functions within the XCs; changing MemReqPtrs to Requests or Packets where appropriate.
Currently the O3 and Ozone CPUs do not work in the new memory system; I still need to fix up the ports to work and handle responses properly. This check-in is so that the merge between m5 and newmem is no longer outstanding. src/SConscript: Need to include FU Pool for new CPU model. I'll try to figure out a cleaner way to handle this in the future. src/base/traceflags.py: Include new traces flags, fix up merge mess up. src/cpu/SConscript: Include the base_dyn_inst.cc as one of othe sources. Don't compile the Ozone CPU for now. src/cpu/base.cc: Remove an extra } from the merge. src/cpu/base_dyn_inst.cc: Fixes to make compiling work. Don't instantiate the OzoneCPU for now. src/cpu/base_dyn_inst.hh: src/cpu/o3/2bit_local_pred.cc: src/cpu/o3/alpha_cpu_builder.cc: src/cpu/o3/alpha_cpu_impl.hh: src/cpu/o3/alpha_dyn_inst.hh: src/cpu/o3/alpha_params.hh: src/cpu/o3/bpred_unit.cc: src/cpu/o3/btb.hh: src/cpu/o3/commit.hh: src/cpu/o3/commit_impl.hh: src/cpu/o3/cpu.cc: src/cpu/o3/cpu.hh: src/cpu/o3/fetch.hh: src/cpu/o3/fetch_impl.hh: src/cpu/o3/free_list.hh: src/cpu/o3/iew.hh: src/cpu/o3/iew_impl.hh: src/cpu/o3/inst_queue.hh: src/cpu/o3/inst_queue_impl.hh: src/cpu/o3/regfile.hh: src/cpu/o3/sat_counter.hh: src/cpu/op_class.hh: src/cpu/ozone/cpu.hh: src/cpu/checker/cpu.cc: src/cpu/checker/cpu.hh: src/cpu/checker/exec_context.hh: src/cpu/checker/o3_cpu_builder.cc: src/cpu/ozone/cpu_impl.hh: src/mem/request.hh: src/cpu/o3/fu_pool.hh: src/cpu/o3/lsq.hh: src/cpu/o3/lsq_unit.hh: src/cpu/o3/lsq_unit_impl.hh: src/cpu/o3/thread_state.hh: src/cpu/ozone/back_end.hh: src/cpu/ozone/dyn_inst.cc: src/cpu/ozone/dyn_inst.hh: src/cpu/ozone/front_end.hh: src/cpu/ozone/inorder_back_end.hh: src/cpu/ozone/lw_back_end.hh: src/cpu/ozone/lw_lsq.hh: src/cpu/ozone/ozone_impl.hh: src/cpu/ozone/thread_state.hh: Fixes to get compiling to work. src/cpu/o3/alpha_cpu.hh: Fixes to get compiling to work. Float reg accessors have changed, as well as MemReqPtrs to RequestPtrs. src/cpu/o3/alpha_dyn_inst_impl.hh: Fixes to get compiling to work. Pass in the packet to the completeAcc function. Fix up syscall function. --HG-- rename : cpu/activity.cc => src/cpu/activity.cc rename : cpu/activity.hh => src/cpu/activity.hh rename : cpu/checker/cpu.cc => src/cpu/checker/cpu.cc rename : cpu/checker/cpu.hh => src/cpu/checker/cpu.hh rename : cpu/checker/cpu_builder.cc => src/cpu/checker/cpu_builder.cc rename : cpu/checker/exec_context.hh => src/cpu/checker/exec_context.hh rename : cpu/checker/o3_cpu_builder.cc => src/cpu/checker/o3_cpu_builder.cc rename : cpu/o3/dep_graph.hh => src/cpu/o3/dep_graph.hh rename : cpu/o3/fu_pool.cc => src/cpu/o3/fu_pool.cc rename : cpu/o3/fu_pool.hh => src/cpu/o3/fu_pool.hh rename : cpu/o3/lsq.cc => src/cpu/o3/lsq.cc rename : cpu/o3/lsq.hh => src/cpu/o3/lsq.hh rename : cpu/o3/lsq_impl.hh => src/cpu/o3/lsq_impl.hh rename : cpu/o3/lsq_unit.cc => src/cpu/o3/lsq_unit.cc rename : cpu/o3/lsq_unit.hh => src/cpu/o3/lsq_unit.hh rename : cpu/o3/lsq_unit_impl.hh => src/cpu/o3/lsq_unit_impl.hh rename : cpu/o3/scoreboard.cc => src/cpu/o3/scoreboard.cc rename : cpu/o3/scoreboard.hh => src/cpu/o3/scoreboard.hh rename : cpu/o3/thread_state.hh => src/cpu/o3/thread_state.hh rename : cpu/ozone/back_end.cc => src/cpu/ozone/back_end.cc rename : cpu/ozone/back_end.hh => src/cpu/ozone/back_end.hh rename : cpu/ozone/back_end_impl.hh => src/cpu/ozone/back_end_impl.hh rename : cpu/ozone/cpu_builder.cc => src/cpu/ozone/cpu_builder.cc rename : cpu/ozone/dyn_inst.cc => src/cpu/ozone/dyn_inst.cc rename : cpu/ozone/dyn_inst.hh => src/cpu/ozone/dyn_inst.hh rename : cpu/ozone/dyn_inst_impl.hh => src/cpu/ozone/dyn_inst_impl.hh rename : cpu/ozone/front_end.cc => src/cpu/ozone/front_end.cc rename : cpu/ozone/front_end.hh => src/cpu/ozone/front_end.hh rename : cpu/ozone/front_end_impl.hh => src/cpu/ozone/front_end_impl.hh rename : cpu/ozone/inorder_back_end.cc => src/cpu/ozone/inorder_back_end.cc rename : cpu/ozone/inorder_back_end.hh => src/cpu/ozone/inorder_back_end.hh rename : cpu/ozone/inorder_back_end_impl.hh => src/cpu/ozone/inorder_back_end_impl.hh rename : cpu/ozone/inst_queue.cc => src/cpu/ozone/inst_queue.cc rename : cpu/ozone/inst_queue.hh => src/cpu/ozone/inst_queue.hh rename : cpu/ozone/inst_queue_impl.hh => src/cpu/ozone/inst_queue_impl.hh rename : cpu/ozone/lsq_unit.cc => src/cpu/ozone/lsq_unit.cc rename : cpu/ozone/lsq_unit.hh => src/cpu/ozone/lsq_unit.hh rename : cpu/ozone/lsq_unit_impl.hh => src/cpu/ozone/lsq_unit_impl.hh rename : cpu/ozone/lw_back_end.cc => src/cpu/ozone/lw_back_end.cc rename : cpu/ozone/lw_back_end.hh => src/cpu/ozone/lw_back_end.hh rename : cpu/ozone/lw_back_end_impl.hh => src/cpu/ozone/lw_back_end_impl.hh rename : cpu/ozone/lw_lsq.cc => src/cpu/ozone/lw_lsq.cc rename : cpu/ozone/lw_lsq.hh => src/cpu/ozone/lw_lsq.hh rename : cpu/ozone/lw_lsq_impl.hh => src/cpu/ozone/lw_lsq_impl.hh rename : cpu/ozone/null_predictor.hh => src/cpu/ozone/null_predictor.hh rename : cpu/ozone/ozone_impl.hh => src/cpu/ozone/ozone_impl.hh rename : cpu/ozone/rename_table.cc => src/cpu/ozone/rename_table.cc rename : cpu/ozone/rename_table.hh => src/cpu/ozone/rename_table.hh rename : cpu/ozone/rename_table_impl.hh => src/cpu/ozone/rename_table_impl.hh rename : cpu/ozone/simple_impl.hh => src/cpu/ozone/simple_impl.hh rename : cpu/ozone/simple_params.hh => src/cpu/ozone/simple_params.hh rename : cpu/ozone/thread_state.hh => src/cpu/ozone/thread_state.hh rename : cpu/quiesce_event.cc => src/cpu/quiesce_event.cc rename : cpu/quiesce_event.hh => src/cpu/quiesce_event.hh rename : cpu/thread_state.hh => src/cpu/thread_state.hh rename : python/m5/objects/FUPool.py => src/python/m5/objects/FUPool.py rename : python/m5/objects/OzoneCPU.py => src/python/m5/objects/OzoneCPU.py rename : python/m5/objects/SimpleOzoneCPU.py => src/python/m5/objects/SimpleOzoneCPU.py extra : convert_revision : ca7f0fbf65ee1a70d482fb4eda9a1840c7f9b8f8
Diffstat (limited to 'src/cpu/ozone/null_predictor.hh')
-rw-r--r--src/cpu/ozone/null_predictor.hh76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/cpu/ozone/null_predictor.hh b/src/cpu/ozone/null_predictor.hh
new file mode 100644
index 000000000..d19e2cd1c
--- /dev/null
+++ b/src/cpu/ozone/null_predictor.hh
@@ -0,0 +1,76 @@
+
+#ifndef __CPU_OZONE_NULL_PREDICTOR_HH__
+#define __CPU_OZONE_NULL_PREDICTOR_HH__
+
+#include "arch/isa_traits.hh"
+#include "cpu/inst_seq.hh"
+
+template <class Impl>
+class NullPredictor
+{
+ public:
+ typedef typename Impl::Params Params;
+ typedef typename Impl::DynInstPtr DynInstPtr;
+
+ NullPredictor(Params *p) { }
+
+ struct BPredInfo {
+ BPredInfo()
+ : PC(0), nextPC(0)
+ { }
+
+ BPredInfo(const Addr &pc, const Addr &next_pc)
+ : PC(pc), nextPC(next_pc)
+ { }
+
+ Addr PC;
+ Addr nextPC;
+ };
+
+ BPredInfo lookup(Addr &PC) { return BPredInfo(PC, PC+4); }
+
+ void undo(BPredInfo &bp_info) { return; }
+
+ /**
+ * Predicts whether or not the instruction is a taken branch, and the
+ * target of the branch if it is taken.
+ * @param inst The branch instruction.
+ * @param PC The predicted PC is passed back through this parameter.
+ * @param tid The thread id.
+ * @return Returns if the branch is taken or not.
+ */
+ bool predict(DynInstPtr &inst, Addr &PC, unsigned tid)
+ { return false; }
+
+ /**
+ * Tells the branch predictor to commit any updates until the given
+ * sequence number.
+ * @param done_sn The sequence number to commit any older updates up until.
+ * @param tid The thread id.
+ */
+ void update(const InstSeqNum &done_sn, unsigned tid) { }
+
+ /**
+ * Squashes all outstanding updates until a given sequence number.
+ * @param squashed_sn The sequence number to squash any younger updates up
+ * until.
+ * @param tid The thread id.
+ */
+ void squash(const InstSeqNum &squashed_sn, unsigned tid) { }
+
+ /**
+ * Squashes all outstanding updates until a given sequence number, and
+ * corrects that sn's update with the proper address and taken/not taken.
+ * @param squashed_sn The sequence number to squash any younger updates up
+ * until.
+ * @param corr_target The correct branch target.
+ * @param actually_taken The correct branch direction.
+ * @param tid The thread id.
+ */
+ void squash(const InstSeqNum &squashed_sn, const Addr &corr_target,
+ bool actually_taken, unsigned tid)
+ { }
+
+};
+
+#endif // __CPU_OZONE_NULL_PREDICTOR_HH__