From dbeabedaf0f8d9ec0ea3331db2e44b1add53f79f Mon Sep 17 00:00:00 2001 From: "Nilay Vaish ext:(%2C%20Timothy%20Jones%20%3Ctimothy.jones%40cl.cam.ac.uk%3E)" Date: Thu, 24 Jan 2013 12:28:51 -0600 Subject: branch predictor: move out of o3 and inorder cpus This patch moves the branch predictor files in the o3 and inorder directories to src/cpu/pred. This allows sharing the branch predictor across different cpu models. This patch was originally posted by Timothy Jones in July 2010 but never made it to the repository. --HG-- rename : src/cpu/o3/bpred_unit.cc => src/cpu/pred/bpred_unit.cc rename : src/cpu/o3/bpred_unit.hh => src/cpu/pred/bpred_unit.hh rename : src/cpu/o3/bpred_unit_impl.hh => src/cpu/pred/bpred_unit_impl.hh rename : src/cpu/o3/sat_counter.hh => src/cpu/pred/sat_counter.hh --- src/cpu/pred/bpred_unit.cc | 49 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 src/cpu/pred/bpred_unit.cc (limited to 'src/cpu/pred/bpred_unit.cc') diff --git a/src/cpu/pred/bpred_unit.cc b/src/cpu/pred/bpred_unit.cc new file mode 100644 index 000000000..52a77119c --- /dev/null +++ b/src/cpu/pred/bpred_unit.cc @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2004-2006 The Regents of The University of Michigan + * Copyright (c) 2010 The University of Edinburgh + * Copyright (c) 2012 Mark D. Hill and David A. Wood + * 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 + * Timothy M. Jones + */ + +#include "cpu/pred/2bit_local.hh" +#include "cpu/pred/bpred_unit_impl.hh" +#include "cpu/pred/tournament.hh" + +BPredUnit * +BranchPredictorParams::create() +{ + // Setup the selected predictor. + if (predType == "local") { + return new LocalBP(this); + } else if (predType == "tournament") { + return new TournamentBP(this); + } else { + fatal("Invalid BP selected!"); + } +} -- cgit v1.2.3