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-rw-r--r--cpu/o3/store_set.cc345
1 files changed, 0 insertions, 345 deletions
diff --git a/cpu/o3/store_set.cc b/cpu/o3/store_set.cc
deleted file mode 100644
index 67ccf1b55..000000000
--- a/cpu/o3/store_set.cc
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@@ -1,345 +0,0 @@
-/*
- * Copyright (c) 2004-2006 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/intmath.hh"
-#include "base/trace.hh"
-#include "cpu/o3/store_set.hh"
-
-StoreSet::StoreSet(int _SSIT_size, int _LFST_size)
- : SSITSize(_SSIT_size), LFSTSize(_LFST_size)
-{
- DPRINTF(StoreSet, "StoreSet: Creating store set object.\n");
- DPRINTF(StoreSet, "StoreSet: SSIT size: %i, LFST size: %i.\n",
- SSITSize, LFSTSize);
-
- if (!isPowerOf2(SSITSize)) {
- fatal("Invalid SSIT size!\n");
- }
-
- SSIT.resize(SSITSize);
-
- validSSIT.resize(SSITSize);
-
- for (int i = 0; i < SSITSize; ++i)
- validSSIT[i] = false;
-
- if (!isPowerOf2(LFSTSize)) {
- fatal("Invalid LFST size!\n");
- }
-
- LFST.resize(LFSTSize);
-
- validLFST.resize(LFSTSize);
-
- for (int i = 0; i < LFSTSize; ++i) {
- validLFST[i] = false;
- LFST[i] = 0;
- }
-
- indexMask = SSITSize - 1;
-
- offsetBits = 2;
-}
-
-StoreSet::~StoreSet()
-{
-}
-
-void
-StoreSet::init(int _SSIT_size, int _LFST_size)
-{
- SSITSize = _SSIT_size;
- LFSTSize = _LFST_size;
-
- DPRINTF(StoreSet, "StoreSet: Creating store set object.\n");
- DPRINTF(StoreSet, "StoreSet: SSIT size: %i, LFST size: %i.\n",
- SSITSize, LFSTSize);
-
- SSIT.resize(SSITSize);
-
- validSSIT.resize(SSITSize);
-
- for (int i = 0; i < SSITSize; ++i)
- validSSIT[i] = false;
-
- LFST.resize(LFSTSize);
-
- validLFST.resize(LFSTSize);
-
- for (int i = 0; i < LFSTSize; ++i) {
- validLFST[i] = false;
- LFST[i] = 0;
- }
-
- indexMask = SSITSize - 1;
-
- offsetBits = 2;
-}
-
-
-void
-StoreSet::violation(Addr store_PC, Addr load_PC)
-{
- int load_index = calcIndex(load_PC);
- int store_index = calcIndex(store_PC);
-
- assert(load_index < SSITSize && store_index < SSITSize);
-
- bool valid_load_SSID = validSSIT[load_index];
- bool valid_store_SSID = validSSIT[store_index];
-
- if (!valid_load_SSID && !valid_store_SSID) {
- // Calculate a new SSID here.
- SSID new_set = calcSSID(load_PC);
-
- validSSIT[load_index] = true;
-
- SSIT[load_index] = new_set;
-
- validSSIT[store_index] = true;
-
- SSIT[store_index] = new_set;
-
- assert(new_set < LFSTSize);
-
- DPRINTF(StoreSet, "StoreSet: Neither load nor store had a valid "
- "storeset, creating a new one: %i for load %#x, store %#x\n",
- new_set, load_PC, store_PC);
- } else if (valid_load_SSID && !valid_store_SSID) {
- SSID load_SSID = SSIT[load_index];
-
- validSSIT[store_index] = true;
-
- SSIT[store_index] = load_SSID;
-
- assert(load_SSID < LFSTSize);
-
- DPRINTF(StoreSet, "StoreSet: Load had a valid store set. Adding "
- "store to that set: %i for load %#x, store %#x\n",
- load_SSID, load_PC, store_PC);
- } else if (!valid_load_SSID && valid_store_SSID) {
- SSID store_SSID = SSIT[store_index];
-
- validSSIT[load_index] = true;
-
- SSIT[load_index] = store_SSID;
-
- DPRINTF(StoreSet, "StoreSet: Store had a valid store set: %i for "
- "load %#x, store %#x\n",
- store_SSID, load_PC, store_PC);
- } else {
- SSID load_SSID = SSIT[load_index];
- SSID store_SSID = SSIT[store_index];
-
- assert(load_SSID < LFSTSize && store_SSID < LFSTSize);
-
- // The store set with the lower number wins
- if (store_SSID > load_SSID) {
- SSIT[store_index] = load_SSID;
-
- DPRINTF(StoreSet, "StoreSet: Load had smaller store set: %i; "
- "for load %#x, store %#x\n",
- load_SSID, load_PC, store_PC);
- } else {
- SSIT[load_index] = store_SSID;
-
- DPRINTF(StoreSet, "StoreSet: Store had smaller store set: %i; "
- "for load %#x, store %#x\n",
- store_SSID, load_PC, store_PC);
- }
- }
-}
-
-void
-StoreSet::insertLoad(Addr load_PC, InstSeqNum load_seq_num)
-{
- // Does nothing.
- return;
-}
-
-void
-StoreSet::insertStore(Addr store_PC, InstSeqNum store_seq_num,
- unsigned tid)
-{
- int index = calcIndex(store_PC);
-
- int store_SSID;
-
- assert(index < SSITSize);
-
- if (!validSSIT[index]) {
- // Do nothing if there's no valid entry.
- return;
- } else {
- store_SSID = SSIT[index];
-
- assert(store_SSID < LFSTSize);
-
- // Update the last store that was fetched with the current one.
- LFST[store_SSID] = store_seq_num;
-
- validLFST[store_SSID] = 1;
-
- storeList[store_seq_num] = store_SSID;
-
- DPRINTF(StoreSet, "Store %#x updated the LFST, SSID: %i\n",
- store_PC, store_SSID);
- }
-}
-
-InstSeqNum
-StoreSet::checkInst(Addr PC)
-{
- int index = calcIndex(PC);
-
- int inst_SSID;
-
- assert(index < SSITSize);
-
- if (!validSSIT[index]) {
- DPRINTF(StoreSet, "Inst %#x with index %i had no SSID\n",
- PC, index);
-
- // Return 0 if there's no valid entry.
- return 0;
- } else {
- inst_SSID = SSIT[index];
-
- assert(inst_SSID < LFSTSize);
-
- if (!validLFST[inst_SSID]) {
-
- DPRINTF(StoreSet, "Inst %#x with index %i and SSID %i had no "
- "dependency\n", PC, index, inst_SSID);
-
- return 0;
- } else {
- DPRINTF(StoreSet, "Inst %#x with index %i and SSID %i had LFST "
- "inum of %i\n", PC, index, inst_SSID, LFST[inst_SSID]);
-
- return LFST[inst_SSID];
- }
- }
-}
-
-void
-StoreSet::issued(Addr issued_PC, InstSeqNum issued_seq_num, bool is_store)
-{
- // This only is updated upon a store being issued.
- if (!is_store) {
- return;
- }
-
- int index = calcIndex(issued_PC);
-
- int store_SSID;
-
- assert(index < SSITSize);
-
- SeqNumMapIt store_list_it = storeList.find(issued_seq_num);
-
- if (store_list_it != storeList.end()) {
- storeList.erase(store_list_it);
- }
-
- // Make sure the SSIT still has a valid entry for the issued store.
- if (!validSSIT[index]) {
- return;
- }
-
- store_SSID = SSIT[index];
-
- assert(store_SSID < LFSTSize);
-
- // If the last fetched store in the store set refers to the store that
- // was just issued, then invalidate the entry.
- if (validLFST[store_SSID] && LFST[store_SSID] == issued_seq_num) {
- DPRINTF(StoreSet, "StoreSet: store invalidated itself in LFST.\n");
- validLFST[store_SSID] = false;
- }
-}
-
-void
-StoreSet::squash(InstSeqNum squashed_num, unsigned tid)
-{
- DPRINTF(StoreSet, "StoreSet: Squashing until inum %i\n",
- squashed_num);
-
- int idx;
- SeqNumMapIt store_list_it = storeList.begin();
-
- //@todo:Fix to only delete from correct thread
- while (!storeList.empty()) {
- idx = (*store_list_it).second;
-
- if ((*store_list_it).first <= squashed_num) {
- break;
- }
-
- bool younger = LFST[idx] > squashed_num;
-
- if (validLFST[idx] && younger) {
- DPRINTF(StoreSet, "Squashed [sn:%lli]\n", LFST[idx]);
- validLFST[idx] = false;
-
- storeList.erase(store_list_it++);
- } else if (!validLFST[idx] && younger) {
- storeList.erase(store_list_it++);
- }
- }
-}
-
-void
-StoreSet::clear()
-{
- for (int i = 0; i < SSITSize; ++i) {
- validSSIT[i] = false;
- }
-
- for (int i = 0; i < LFSTSize; ++i) {
- validLFST[i] = false;
- }
-
- storeList.clear();
-}
-
-void
-StoreSet::dump()
-{
- cprintf("storeList.size(): %i\n", storeList.size());
- SeqNumMapIt store_list_it = storeList.begin();
-
- int num = 0;
-
- while (store_list_it != storeList.end()) {
- cprintf("%i: [sn:%lli] SSID:%i\n",
- num, (*store_list_it).first, (*store_list_it).second);
- num++;
- store_list_it++;
- }
-}
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