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authorBrad Beckmann <Brad.Beckmann@amd.com>2010-01-29 20:29:19 -0800
committerBrad Beckmann <Brad.Beckmann@amd.com>2010-01-29 20:29:19 -0800
commit4e5f4b5074a5f76c73e9ca94954b43cd1686866c (patch)
treeec74d20e995b55851774d3c37375a87f8dbd9e78 /src
parente15abd17f92db574dfcbf3798f6352712f897ebc (diff)
downloadgem5-4e5f4b5074a5f76c73e9ca94954b43cd1686866c.tar.xz
ruby: Converted the sequencer deadlock event to m5 eventq
Diffstat (limited to 'src')
-rw-r--r--src/mem/ruby/eventqueue/RubyEventQueue.hh1
-rw-r--r--src/mem/ruby/system/Sequencer.cc13
-rw-r--r--src/mem/ruby/system/Sequencer.hh12
3 files changed, 18 insertions, 8 deletions
diff --git a/src/mem/ruby/eventqueue/RubyEventQueue.hh b/src/mem/ruby/eventqueue/RubyEventQueue.hh
index 36aa4843e..f9b4aa060 100644
--- a/src/mem/ruby/eventqueue/RubyEventQueue.hh
+++ b/src/mem/ruby/eventqueue/RubyEventQueue.hh
@@ -79,6 +79,7 @@ public:
// Public Methods
Time getTime() const { return curTick/m_clock; }
+ Tick getClock() const { return m_clock; }
void scheduleEvent(Consumer* consumer, Time timeDelta);
void scheduleEventAbsolute(Consumer* consumer, Time timeAbs);
void print(ostream& out) const;
diff --git a/src/mem/ruby/system/Sequencer.cc b/src/mem/ruby/system/Sequencer.cc
index ad219eab3..a5a6e3260 100644
--- a/src/mem/ruby/system/Sequencer.cc
+++ b/src/mem/ruby/system/Sequencer.cc
@@ -56,14 +56,13 @@ RubySequencerParams::create()
}
Sequencer::Sequencer(const Params *p)
- : RubyPort(p)
+ : RubyPort(p), deadlockCheckEvent(this)
{
m_store_waiting_on_load_cycles = 0;
m_store_waiting_on_store_cycles = 0;
m_load_waiting_on_store_cycles = 0;
m_load_waiting_on_load_cycles = 0;
- m_deadlock_check_scheduled = false;
m_outstanding_count = 0;
m_max_outstanding_requests = 0;
@@ -128,9 +127,8 @@ void Sequencer::wakeup() {
assert(m_outstanding_count == total_outstanding);
if (m_outstanding_count > 0) { // If there are still outstanding requests, keep checking
- g_eventQueue_ptr->scheduleEvent(this, m_deadlock_threshold);
- } else {
- m_deadlock_check_scheduled = false;
+ schedule(deadlockCheckEvent,
+ (m_deadlock_threshold * g_eventQueue_ptr->getClock()) + curTick);
}
}
@@ -198,9 +196,8 @@ bool Sequencer::insertRequest(SequencerRequest* request) {
assert(m_outstanding_count == total_outstanding);
// See if we should schedule a deadlock check
- if (m_deadlock_check_scheduled == false) {
- g_eventQueue_ptr->scheduleEvent(this, m_deadlock_threshold);
- m_deadlock_check_scheduled = true;
+ if (deadlockCheckEvent.scheduled() == false) {
+ schedule(deadlockCheckEvent, m_deadlock_threshold);
}
Address line_addr(request->ruby_request.paddr);
diff --git a/src/mem/ruby/system/Sequencer.hh b/src/mem/ruby/system/Sequencer.hh
index 974b251f0..f24edbf74 100644
--- a/src/mem/ruby/system/Sequencer.hh
+++ b/src/mem/ruby/system/Sequencer.hh
@@ -128,6 +128,18 @@ private:
int m_store_waiting_on_store_cycles;
int m_load_waiting_on_store_cycles;
int m_load_waiting_on_load_cycles;
+
+ class SequencerWakeupEvent : public Event
+ {
+ Sequencer *m_sequencer_ptr;
+
+ public:
+ SequencerWakeupEvent(Sequencer *_seq) : m_sequencer_ptr(_seq) {}
+ void process() { m_sequencer_ptr->wakeup(); }
+ const char *description() const { return "Sequencer deadlock check"; }
+ };
+
+ SequencerWakeupEvent deadlockCheckEvent;
};
// Output operator declaration