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authorNathan Binkert <nate@binkert.org>2009-06-04 21:50:20 -0700
committerNathan Binkert <nate@binkert.org>2009-06-04 21:50:20 -0700
commit4e3426624557b555c354035ee3961eab7554d81d (patch)
tree7d5e73630456de787526292b754224e918a4b823 /src/cpu/o3/btb.hh
parente30c62ad994a730b78361b5ecce45b97e58c0701 (diff)
downloadgem5-4e3426624557b555c354035ee3961eab7554d81d.tar.xz
move: put predictor includes and cc files into the same place
--HG-- rename : src/cpu/2bit_local_pred.cc => src/cpu/pred/2bit_local.cc rename : src/cpu/o3/2bit_local_pred.hh => src/cpu/pred/2bit_local.hh rename : src/cpu/btb.cc => src/cpu/pred/btb.cc rename : src/cpu/o3/btb.hh => src/cpu/pred/btb.hh rename : src/cpu/ras.cc => src/cpu/pred/ras.cc rename : src/cpu/o3/ras.hh => src/cpu/pred/ras.hh rename : src/cpu/tournament_pred.cc => src/cpu/pred/tournament.cc rename : src/cpu/o3/tournament_pred.hh => src/cpu/pred/tournament.hh
Diffstat (limited to 'src/cpu/o3/btb.hh')
-rw-r--r--src/cpu/o3/btb.hh129
1 files changed, 0 insertions, 129 deletions
diff --git a/src/cpu/o3/btb.hh b/src/cpu/o3/btb.hh
deleted file mode 100644
index 6557522e0..000000000
--- a/src/cpu/o3/btb.hh
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * 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.
- *
- * Authors: Kevin Lim
- */
-
-#ifndef __CPU_O3_BTB_HH__
-#define __CPU_O3_BTB_HH__
-
-#include "base/misc.hh"
-#include "base/types.hh"
-
-class DefaultBTB
-{
- private:
- struct BTBEntry
- {
- BTBEntry()
- : tag(0), target(0), valid(false)
- {
- }
-
- /** The entry's tag. */
- Addr tag;
-
- /** The entry's target. */
- Addr target;
-
- /** The entry's thread id. */
- ThreadID tid;
-
- /** Whether or not the entry is valid. */
- bool valid;
- };
-
- public:
- /** Creates a BTB with the given number of entries, number of bits per
- * tag, and instruction offset amount.
- * @param numEntries Number of entries for the BTB.
- * @param tagBits Number of bits for each tag in the BTB.
- * @param instShiftAmt Offset amount for instructions to ignore alignment.
- */
- DefaultBTB(unsigned numEntries, unsigned tagBits,
- unsigned instShiftAmt);
-
- void reset();
-
- /** Looks up an address in the BTB. Must call valid() first on the address.
- * @param inst_PC The address of the branch to look up.
- * @param tid The thread id.
- * @return Returns the target of the branch.
- */
- Addr lookup(const Addr &inst_PC, ThreadID tid);
-
- /** Checks if a branch is in the BTB.
- * @param inst_PC The address of the branch to look up.
- * @param tid The thread id.
- * @return Whether or not the branch exists in the BTB.
- */
- bool valid(const Addr &inst_PC, ThreadID tid);
-
- /** Updates the BTB with the target of a branch.
- * @param inst_PC The address of the branch being updated.
- * @param target_PC The target address of the branch.
- * @param tid The thread id.
- */
- void update(const Addr &inst_PC, const Addr &target_PC,
- ThreadID tid);
-
- private:
- /** Returns the index into the BTB, based on the branch's PC.
- * @param inst_PC The branch to look up.
- * @return Returns the index into the BTB.
- */
- inline unsigned getIndex(const Addr &inst_PC);
-
- /** Returns the tag bits of a given address.
- * @param inst_PC The branch's address.
- * @return Returns the tag bits.
- */
- inline Addr getTag(const Addr &inst_PC);
-
- /** The actual BTB. */
- std::vector<BTBEntry> btb;
-
- /** The number of entries in the BTB. */
- unsigned numEntries;
-
- /** The index mask. */
- unsigned idxMask;
-
- /** The number of tag bits per entry. */
- unsigned tagBits;
-
- /** The tag mask. */
- unsigned tagMask;
-
- /** Number of bits to shift PC when calculating index. */
- unsigned instShiftAmt;
-
- /** Number of bits to shift PC when calculating tag. */
- unsigned tagShiftAmt;
-};
-
-#endif // __CPU_O3_BTB_HH__