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-rw-r--r--cpu/o3/free_list.cc70
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diff --git a/cpu/o3/free_list.cc b/cpu/o3/free_list.cc
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--- a/cpu/o3/free_list.cc
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-/*
- * 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.
- */
-
-#include "base/trace.hh"
-
-#include "cpu/o3/free_list.hh"
-
-SimpleFreeList::SimpleFreeList(unsigned activeThreads,
- unsigned _numLogicalIntRegs,
- unsigned _numPhysicalIntRegs,
- unsigned _numLogicalFloatRegs,
- unsigned _numPhysicalFloatRegs)
- : numLogicalIntRegs(_numLogicalIntRegs),
- numPhysicalIntRegs(_numPhysicalIntRegs),
- numLogicalFloatRegs(_numLogicalFloatRegs),
- numPhysicalFloatRegs(_numPhysicalFloatRegs),
- numPhysicalRegs(numPhysicalIntRegs + numPhysicalFloatRegs)
-{
- DPRINTF(FreeList, "Creating new free list object.\n");
-
- // Put all of the extra physical registers onto the free list. This
- // means excluding all of the base logical registers.
- for (PhysRegIndex i = numLogicalIntRegs * activeThreads;
- i < numPhysicalIntRegs; ++i)
- {
- freeIntRegs.push(i);
- }
-
- // Put all of the extra physical registers onto the free list. This
- // means excluding all of the base logical registers. Because the
- // float registers' indices start where the physical registers end,
- // some math must be done to determine where the free registers start.
- PhysRegIndex i = numPhysicalIntRegs + (numLogicalFloatRegs * activeThreads);
-
- for ( ; i < numPhysicalRegs; ++i)
- {
- freeFloatRegs.push(i);
- }
-}
-
-std::string
-SimpleFreeList::name() const
-{
- return "cpu.freelist";
-}