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-rw-r--r--dev/tsunami_io.cc11
1 files changed, 8 insertions, 3 deletions
diff --git a/dev/tsunami_io.cc b/dev/tsunami_io.cc
index 6c9195bff..1e4f44346 100644
--- a/dev/tsunami_io.cc
+++ b/dev/tsunami_io.cc
@@ -95,6 +95,13 @@ TsunamiIO::RTCEvent::unserialize(Checkpoint *cp, const std::string &section)
TsunamiIO::ClockEvent::ClockEvent()
: Event(&mainEventQueue)
{
+ /* This is the PIT Tick Rate. A constant for the 8254 timer. The
+ * Tsunami platform has one of these cycle counters on the Cypress
+ * South Bridge and it is used by linux for estimating the cycle
+ * frequency of the machine it is running on. --Ali
+ */
+ interval = (Tick)(Clock::Float::s / 1193180.0);
+
DPRINTF(Tsunami, "Clock Event Initilizing\n");
mode = 0;
}
@@ -113,9 +120,7 @@ void
TsunamiIO::ClockEvent::Program(int count)
{
DPRINTF(Tsunami, "Timer set to curTick + %d\n", count);
- // should be count * (cpufreq/pitfreq)
- interval = count * ticksPerSecond/1193180UL;
- schedule(curTick + interval);
+ schedule(curTick + count * interval);
status = 0;
}