base.cc (13418:08101e89101e) base.cc (13419:aaadcfae091a)
1/*
2 * Copyright (c) 2013,2016,2018 ARM Limited
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

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46 * Definitions of BaseTags.
47 */
48
49#include "mem/cache/tags/base.hh"
50
51#include <cassert>
52
53#include "base/types.hh"
1/*
2 * Copyright (c) 2013,2016,2018 ARM Limited
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

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46 * Definitions of BaseTags.
47 */
48
49#include "mem/cache/tags/base.hh"
50
51#include <cassert>
52
53#include "base/types.hh"
54#include "mem/cache/base.hh"
55#include "mem/cache/replacement_policies/replaceable_entry.hh"
56#include "mem/cache/tags/indexing_policies/base.hh"
57#include "mem/request.hh"
58#include "sim/core.hh"
59#include "sim/sim_exit.hh"
60#include "sim/system.hh"
61
62BaseTags::BaseTags(const Params *p)
63 : ClockedObject(p), blkSize(p->block_size), blkMask(blkSize - 1),
64 size(p->size), lookupLatency(p->tag_latency),
54#include "mem/cache/replacement_policies/replaceable_entry.hh"
55#include "mem/cache/tags/indexing_policies/base.hh"
56#include "mem/request.hh"
57#include "sim/core.hh"
58#include "sim/sim_exit.hh"
59#include "sim/system.hh"
60
61BaseTags::BaseTags(const Params *p)
62 : ClockedObject(p), blkSize(p->block_size), blkMask(blkSize - 1),
63 size(p->size), lookupLatency(p->tag_latency),
65 cache(nullptr), indexingPolicy(p->indexing_policy),
64 system(p->system), indexingPolicy(p->indexing_policy),
66 warmupBound((p->warmup_percentage/100.0) * (p->size / p->block_size)),
67 warmedUp(false), numBlocks(p->size / p->block_size),
68 dataBlks(new uint8_t[p->size]) // Allocate data storage in one big chunk
69{
70}
71
65 warmupBound((p->warmup_percentage/100.0) * (p->size / p->block_size)),
66 warmedUp(false), numBlocks(p->size / p->block_size),
67 dataBlks(new uint8_t[p->size]) // Allocate data storage in one big chunk
68{
69}
70
72void
73BaseTags::setCache(BaseCache *_cache)
74{
75 assert(!cache);
76 cache = _cache;
77}
78
79ReplaceableEntry*
80BaseTags::findBlockBySetAndWay(int set, int way) const
81{
82 return indexingPolicy->getEntry(set, way);
83}
84
85CacheBlk*
86BaseTags::findBlock(Addr addr, bool is_secure) const

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110 const int src_master_ID, const uint32_t task_ID,
111 CacheBlk *blk)
112{
113 assert(!blk->isValid());
114
115 // Previous block, if existed, has been removed, and now we have
116 // to insert the new one
117 // Deal with what we are bringing in
71ReplaceableEntry*
72BaseTags::findBlockBySetAndWay(int set, int way) const
73{
74 return indexingPolicy->getEntry(set, way);
75}
76
77CacheBlk*
78BaseTags::findBlock(Addr addr, bool is_secure) const

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102 const int src_master_ID, const uint32_t task_ID,
103 CacheBlk *blk)
104{
105 assert(!blk->isValid());
106
107 // Previous block, if existed, has been removed, and now we have
108 // to insert the new one
109 // Deal with what we are bringing in
118 assert(src_master_ID < cache->system->maxMasters());
110 assert(src_master_ID < system->maxMasters());
119 occupancies[src_master_ID]++;
120
121 // Insert block with tag, src master id and task id
122 blk->insert(extractTag(addr), is_secure, src_master_ID, task_ID);
123
124 // Check if cache warm up is done
125 if (!warmedUp && tagsInUse.value() >= warmupBound) {
126 warmedUp = true;

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238 avgRefs = totalRefs/sampledRefs;
239
240 warmupCycle
241 .name(name() + ".warmup_cycle")
242 .desc("Cycle when the warmup percentage was hit.")
243 ;
244
245 occupancies
111 occupancies[src_master_ID]++;
112
113 // Insert block with tag, src master id and task id
114 blk->insert(extractTag(addr), is_secure, src_master_ID, task_ID);
115
116 // Check if cache warm up is done
117 if (!warmedUp && tagsInUse.value() >= warmupBound) {
118 warmedUp = true;

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230 avgRefs = totalRefs/sampledRefs;
231
232 warmupCycle
233 .name(name() + ".warmup_cycle")
234 .desc("Cycle when the warmup percentage was hit.")
235 ;
236
237 occupancies
246 .init(cache->system->maxMasters())
238 .init(system->maxMasters())
247 .name(name() + ".occ_blocks")
248 .desc("Average occupied blocks per requestor")
249 .flags(nozero | nonan)
250 ;
239 .name(name() + ".occ_blocks")
240 .desc("Average occupied blocks per requestor")
241 .flags(nozero | nonan)
242 ;
251 for (int i = 0; i < cache->system->maxMasters(); i++) {
252 occupancies.subname(i, cache->system->getMasterName(i));
243 for (int i = 0; i < system->maxMasters(); i++) {
244 occupancies.subname(i, system->getMasterName(i));
253 }
254
255 avgOccs
256 .name(name() + ".occ_percent")
257 .desc("Average percentage of cache occupancy")
258 .flags(nozero | total)
259 ;
245 }
246
247 avgOccs
248 .name(name() + ".occ_percent")
249 .desc("Average percentage of cache occupancy")
250 .flags(nozero | total)
251 ;
260 for (int i = 0; i < cache->system->maxMasters(); i++) {
261 avgOccs.subname(i, cache->system->getMasterName(i));
252 for (int i = 0; i < system->maxMasters(); i++) {
253 avgOccs.subname(i, system->getMasterName(i));
262 }
263
264 avgOccs = occupancies / Stats::constant(numBlocks);
265
266 occupanciesTaskId
267 .init(ContextSwitchTaskId::NumTaskId)
268 .name(name() + ".occ_task_id_blocks")
269 .desc("Occupied blocks per task id")

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255
256 avgOccs = occupancies / Stats::constant(numBlocks);
257
258 occupanciesTaskId
259 .init(ContextSwitchTaskId::NumTaskId)
260 .name(name() + ".occ_task_id_blocks")
261 .desc("Occupied blocks per task id")

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