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authorNathan Binkert <binkertn@umich.edu>2005-06-04 20:50:10 -0400
committerNathan Binkert <binkertn@umich.edu>2005-06-04 20:50:10 -0400
commit13c005a8af79a8481879ce099b45a1f98faae165 (patch)
tree3125dfe10539270433981b39119dd727295c255c /cpu/o3/comm.hh
parent5a94e6f2cc6ed8480063da68d20274ced2930925 (diff)
downloadgem5-13c005a8af79a8481879ce099b45a1f98faae165.tar.xz
shuffle files around for new directory structure
--HG-- rename : cpu/base_cpu.cc => cpu/base.cc rename : cpu/base_cpu.hh => cpu/base.hh rename : cpu/beta_cpu/2bit_local_pred.cc => cpu/o3/2bit_local_pred.cc rename : cpu/beta_cpu/2bit_local_pred.hh => cpu/o3/2bit_local_pred.hh rename : cpu/beta_cpu/alpha_full_cpu.cc => cpu/o3/alpha_cpu.cc rename : cpu/beta_cpu/alpha_full_cpu.hh => cpu/o3/alpha_cpu.hh rename : cpu/beta_cpu/alpha_full_cpu_builder.cc => cpu/o3/alpha_cpu_builder.cc rename : cpu/beta_cpu/alpha_full_cpu_impl.hh => cpu/o3/alpha_cpu_impl.hh rename : cpu/beta_cpu/alpha_dyn_inst.cc => cpu/o3/alpha_dyn_inst.cc rename : cpu/beta_cpu/alpha_dyn_inst.hh => cpu/o3/alpha_dyn_inst.hh rename : cpu/beta_cpu/alpha_dyn_inst_impl.hh => cpu/o3/alpha_dyn_inst_impl.hh rename : cpu/beta_cpu/alpha_impl.hh => cpu/o3/alpha_impl.hh rename : cpu/beta_cpu/alpha_params.hh => cpu/o3/alpha_params.hh rename : cpu/beta_cpu/bpred_unit.cc => cpu/o3/bpred_unit.cc rename : cpu/beta_cpu/bpred_unit.hh => cpu/o3/bpred_unit.hh rename : cpu/beta_cpu/bpred_unit_impl.hh => cpu/o3/bpred_unit_impl.hh rename : cpu/beta_cpu/btb.cc => cpu/o3/btb.cc rename : cpu/beta_cpu/btb.hh => cpu/o3/btb.hh rename : cpu/beta_cpu/comm.hh => cpu/o3/comm.hh rename : cpu/beta_cpu/commit.cc => cpu/o3/commit.cc rename : cpu/beta_cpu/commit.hh => cpu/o3/commit.hh rename : cpu/beta_cpu/commit_impl.hh => cpu/o3/commit_impl.hh rename : cpu/beta_cpu/full_cpu.cc => cpu/o3/cpu.cc rename : cpu/beta_cpu/full_cpu.hh => cpu/o3/cpu.hh rename : cpu/beta_cpu/cpu_policy.hh => cpu/o3/cpu_policy.hh rename : cpu/beta_cpu/decode.cc => cpu/o3/decode.cc rename : cpu/beta_cpu/decode.hh => cpu/o3/decode.hh rename : cpu/beta_cpu/decode_impl.hh => cpu/o3/decode_impl.hh rename : cpu/beta_cpu/fetch.cc => cpu/o3/fetch.cc rename : cpu/beta_cpu/fetch.hh => cpu/o3/fetch.hh rename : cpu/beta_cpu/fetch_impl.hh => cpu/o3/fetch_impl.hh rename : cpu/beta_cpu/free_list.cc => cpu/o3/free_list.cc rename : cpu/beta_cpu/free_list.hh => cpu/o3/free_list.hh rename : cpu/beta_cpu/iew.cc => cpu/o3/iew.cc rename : cpu/beta_cpu/iew.hh => cpu/o3/iew.hh rename : cpu/beta_cpu/iew_impl.hh => cpu/o3/iew_impl.hh rename : cpu/beta_cpu/inst_queue.cc => cpu/o3/inst_queue.cc rename : cpu/beta_cpu/inst_queue.hh => cpu/o3/inst_queue.hh rename : cpu/beta_cpu/inst_queue_impl.hh => cpu/o3/inst_queue_impl.hh rename : cpu/beta_cpu/mem_dep_unit.cc => cpu/o3/mem_dep_unit.cc rename : cpu/beta_cpu/mem_dep_unit.hh => cpu/o3/mem_dep_unit.hh rename : cpu/beta_cpu/mem_dep_unit_impl.hh => cpu/o3/mem_dep_unit_impl.hh rename : cpu/beta_cpu/ras.cc => cpu/o3/ras.cc rename : cpu/beta_cpu/ras.hh => cpu/o3/ras.hh rename : cpu/beta_cpu/regfile.hh => cpu/o3/regfile.hh rename : cpu/beta_cpu/rename.cc => cpu/o3/rename.cc rename : cpu/beta_cpu/rename.hh => cpu/o3/rename.hh rename : cpu/beta_cpu/rename_impl.hh => cpu/o3/rename_impl.hh rename : cpu/beta_cpu/rename_map.cc => cpu/o3/rename_map.cc rename : cpu/beta_cpu/rename_map.hh => cpu/o3/rename_map.hh rename : cpu/beta_cpu/rob.cc => cpu/o3/rob.cc rename : cpu/beta_cpu/rob.hh => cpu/o3/rob.hh rename : cpu/beta_cpu/rob_impl.hh => cpu/o3/rob_impl.hh rename : cpu/beta_cpu/sat_counter.cc => cpu/o3/sat_counter.cc rename : cpu/beta_cpu/sat_counter.hh => cpu/o3/sat_counter.hh rename : cpu/beta_cpu/store_set.cc => cpu/o3/store_set.cc rename : cpu/beta_cpu/store_set.hh => cpu/o3/store_set.hh rename : cpu/beta_cpu/tournament_pred.cc => cpu/o3/tournament_pred.cc rename : cpu/beta_cpu/tournament_pred.hh => cpu/o3/tournament_pred.hh rename : cpu/ooo_cpu/ooo_cpu.cc => cpu/ozone/cpu.cc rename : cpu/ooo_cpu/ooo_cpu.hh => cpu/ozone/cpu.hh rename : cpu/ooo_cpu/ooo_impl.hh => cpu/ozone/cpu_impl.hh rename : cpu/ooo_cpu/ea_list.cc => cpu/ozone/ea_list.cc rename : cpu/ooo_cpu/ea_list.hh => cpu/ozone/ea_list.hh rename : cpu/simple_cpu/simple_cpu.cc => cpu/simple/cpu.cc rename : cpu/simple_cpu/simple_cpu.hh => cpu/simple/cpu.hh rename : cpu/full_cpu/smt.hh => cpu/smt.hh rename : cpu/full_cpu/op_class.hh => encumbered/cpu/full/op_class.hh extra : convert_revision : c4a891d8d6d3e0e9e5ea56be47d851da44d8c032
Diffstat (limited to 'cpu/o3/comm.hh')
-rw-r--r--cpu/o3/comm.hh163
1 files changed, 163 insertions, 0 deletions
diff --git a/cpu/o3/comm.hh b/cpu/o3/comm.hh
new file mode 100644
index 000000000..475ab8df8
--- /dev/null
+++ b/cpu/o3/comm.hh
@@ -0,0 +1,163 @@
+/*
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __CPU_BETA_CPU_COMM_HH__
+#define __CPU_BETA_CPU_COMM_HH__
+
+#include <vector>
+
+#include "arch/alpha/isa_traits.hh"
+#include "cpu/inst_seq.hh"
+#include "sim/host.hh"
+
+// Find better place to put this typedef.
+// The impl might be the best place for this.
+typedef short int PhysRegIndex;
+
+template<class Impl>
+struct SimpleFetchSimpleDecode {
+ typedef typename Impl::DynInstPtr DynInstPtr;
+
+ int size;
+
+ DynInstPtr insts[Impl::MaxWidth];
+};
+
+template<class Impl>
+struct SimpleDecodeSimpleRename {
+ typedef typename Impl::DynInstPtr DynInstPtr;
+
+ int size;
+
+ DynInstPtr insts[Impl::MaxWidth];
+};
+
+template<class Impl>
+struct SimpleRenameSimpleIEW {
+ typedef typename Impl::DynInstPtr DynInstPtr;
+
+ int size;
+
+ DynInstPtr insts[Impl::MaxWidth];
+};
+
+template<class Impl>
+struct SimpleIEWSimpleCommit {
+ typedef typename Impl::DynInstPtr DynInstPtr;
+
+ int size;
+
+ DynInstPtr insts[Impl::MaxWidth];
+
+ bool squash;
+ bool branchMispredict;
+ bool branchTaken;
+ uint64_t mispredPC;
+ uint64_t nextPC;
+ InstSeqNum squashedSeqNum;
+};
+
+template<class Impl>
+struct IssueStruct {
+ typedef typename Impl::DynInstPtr DynInstPtr;
+
+ int size;
+
+ DynInstPtr insts[Impl::MaxWidth];
+};
+
+struct TimeBufStruct {
+ struct decodeComm {
+ bool squash;
+ bool stall;
+ bool predIncorrect;
+ uint64_t branchAddr;
+
+ InstSeqNum doneSeqNum;
+
+ // Might want to package this kind of branch stuff into a single
+ // struct as it is used pretty frequently.
+ bool branchMispredict;
+ bool branchTaken;
+ uint64_t mispredPC;
+ uint64_t nextPC;
+ };
+
+ decodeComm decodeInfo;
+
+ // Rename can't actually tell anything to squash or send a new PC back
+ // because it doesn't do anything along those lines. But maybe leave
+ // these fields in here to keep the stages mostly orthagonal.
+ struct renameComm {
+ bool squash;
+ bool stall;
+
+ uint64_t nextPC;
+ };
+
+ renameComm renameInfo;
+
+ struct iewComm {
+ bool stall;
+
+ // Also eventually include skid buffer space.
+ unsigned freeIQEntries;
+ };
+
+ iewComm iewInfo;
+
+ struct commitComm {
+ bool squash;
+ bool stall;
+ unsigned freeROBEntries;
+
+ bool branchMispredict;
+ bool branchTaken;
+ uint64_t mispredPC;
+ uint64_t nextPC;
+
+ bool robSquashing;
+
+ // Represents the instruction that has either been retired or
+ // squashed. Similar to having a single bus that broadcasts the
+ // retired or squashed sequence number.
+ InstSeqNum doneSeqNum;
+
+ // Extra bit of information so that the LDSTQ only updates when it
+ // needs to.
+ bool commitIsLoad;
+
+ // Communication specifically to the IQ to tell the IQ that it can
+ // schedule a non-speculative instruction.
+ InstSeqNum nonSpecSeqNum;
+ };
+
+ commitComm commitInfo;
+};
+
+#endif //__CPU_BETA_CPU_COMM_HH__