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authorNilay Vaish <nilay@cs.wisc.edu>2012-02-10 11:29:02 -0600
committerNilay Vaish <nilay@cs.wisc.edu>2012-02-10 11:29:02 -0600
commitaa513a4a99cb8dfc6b605797acbbb64a5601ab6e (patch)
treeb0a7d8175aaffd5e3a58d5d88db8ad8bedd676c7 /src/mem
parent69d8600bf80ce065feccbac6d55e45db62f1654f (diff)
downloadgem5-aa513a4a99cb8dfc6b605797acbbb64a5601ab6e.tar.xz
Ruby: Remove isTagPresent() calls from Sequencer.cc
This patch removes the calls to isTagPresent() from Sequencer.cc. These calls are made just for setting the cache block to have been most recently used. The calls have been folded in to the function setMRU().
Diffstat (limited to 'src/mem')
-rw-r--r--src/mem/ruby/system/CacheMemory.cc10
-rw-r--r--src/mem/ruby/system/Sequencer.cc6
2 files changed, 7 insertions, 9 deletions
diff --git a/src/mem/ruby/system/CacheMemory.cc b/src/mem/ruby/system/CacheMemory.cc
index 9f1fe6320..393612355 100644
--- a/src/mem/ruby/system/CacheMemory.cc
+++ b/src/mem/ruby/system/CacheMemory.cc
@@ -339,12 +339,12 @@ CacheMemory::lookup(const Address& address) const
void
CacheMemory::setMRU(const Address& address)
{
- Index cacheSet;
+ Index cacheSet = addressToCacheSet(address);
+ int loc = findTagInSet(cacheSet, address);
- cacheSet = addressToCacheSet(address);
- m_replacementPolicy_ptr->
- touch(cacheSet, findTagInSet(cacheSet, address),
- g_eventQueue_ptr->getTime());
+ if(loc != -1)
+ m_replacementPolicy_ptr->
+ touch(cacheSet, loc, g_eventQueue_ptr->getTime());
}
void
diff --git a/src/mem/ruby/system/Sequencer.cc b/src/mem/ruby/system/Sequencer.cc
index 1cd54d45c..5f64a1ba4 100644
--- a/src/mem/ruby/system/Sequencer.cc
+++ b/src/mem/ruby/system/Sequencer.cc
@@ -482,11 +482,9 @@ Sequencer::hitCallback(SequencerRequest* srequest,
// Set this cache entry to the most recently used
if (type == RubyRequestType_IFETCH) {
- if (m_instCache_ptr->isTagPresent(request_line_address))
- m_instCache_ptr->setMRU(request_line_address);
+ m_instCache_ptr->setMRU(request_line_address);
} else {
- if (m_dataCache_ptr->isTagPresent(request_line_address))
- m_dataCache_ptr->setMRU(request_line_address);
+ m_dataCache_ptr->setMRU(request_line_address);
}
assert(g_eventQueue_ptr->getTime() >= issued_time);