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This commit is contained in:
Derek Hower 2009-10-07 15:48:26 -05:00
commit 4505216282
1 changed files with 7 additions and 4 deletions
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11
src/mem/ruby/system/Sequencer.cc
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@ -45,7 +45,7 @@
//Sequencer::Sequencer(int core_id, MessageBuffer* mandatory_q)
#define LLSC_FAIL -2
long int already = 0;
Sequencer::Sequencer(const string & name)
:RubyPort(name)
{
@ -354,9 +354,6 @@ void Sequencer::hitCallback(SequencerRequest* srequest, DataBlock& data) {
// Returns true if the sequencer already has a load or store outstanding
int Sequencer::isReady(const RubyRequest& request) {
// POLINA: check if we are currently flushing the write buffer, if so Ruby is returned as not ready
// to simulate stalling of the front-end
// Do we stall all the sequencers? If it is atomic instruction - yes!
if (m_outstanding_count >= m_max_outstanding_requests) {
return LIBRUBY_BUFFER_FULL;
}
@ -417,6 +414,8 @@ void Sequencer::issueRequest(const RubyRequest& request) {
case RubyRequestType_IFETCH:
if (m_atomic_reads > 0 && m_atomic_writes == 0) {
m_controller->reset_atomics();
m_atomic_writes = 0;
m_atomic_reads = 0;
}
else if (m_atomic_writes > 0) {
assert(m_atomic_reads > m_atomic_writes);
@ -428,6 +427,8 @@ void Sequencer::issueRequest(const RubyRequest& request) {
case RubyRequestType_LD:
if (m_atomic_reads > 0 && m_atomic_writes == 0) {
m_controller->reset_atomics();
m_atomic_writes = 0;
m_atomic_reads = 0;
}
else if (m_atomic_writes > 0) {
assert(m_atomic_reads > m_atomic_writes);
@ -439,6 +440,8 @@ void Sequencer::issueRequest(const RubyRequest& request) {
case RubyRequestType_ST:
if (m_atomic_reads > 0 && m_atomic_writes == 0) {
m_controller->reset_atomics();
m_atomic_writes = 0;
m_atomic_reads = 0;
}
else if (m_atomic_writes > 0) {
assert(m_atomic_reads > m_atomic_writes);