diff options
| author | Gabe Black <gblack@eecs.umich.edu> | 2008-10-11 15:15:34 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2008-10-11 15:15:34 -0700 |
| commit | a2599e4fc1272e4c1fdf5cff90da88653579b62f (patch) | |
| tree | 6ed886dbd3ccd1608b3f6fdbc37db266511d5f47 /src/dev/intel_8254_timer.cc | |
| parent | 526933e5d03f5d7963bc5a244294ddbb068c4770 (diff) | |
| download | gem5-a2599e4fc1272e4c1fdf5cff90da88653579b62f.tar.xz | |
X86: Set up a mechanism for the I8254 timer to cause interrupts.
Diffstat (limited to 'src/dev/intel_8254_timer.cc')
| -rw-r--r-- | src/dev/intel_8254_timer.cc | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/src/dev/intel_8254_timer.cc b/src/dev/intel_8254_timer.cc index 35fbd9c38..d5dd043e1 100644 --- a/src/dev/intel_8254_timer.cc +++ b/src/dev/intel_8254_timer.cc @@ -47,9 +47,9 @@ Intel8254Timer::Intel8254Timer(EventManager *em, const string &name, Intel8254Timer::Intel8254Timer(EventManager *em, const string &name) : EventManager(em), _name(name) { - counter[0] = new Counter(this, name + ".counter0"); - counter[1] = new Counter(this, name + ".counter1"); - counter[2] = new Counter(this, name + ".counter2"); + counter[0] = new Counter(this, name + ".counter0", 0); + counter[1] = new Counter(this, name + ".counter1", 1); + counter[2] = new Counter(this, name + ".counter2", 2); } void @@ -88,10 +88,11 @@ Intel8254Timer::unserialize(const string &base, Checkpoint *cp, counter[2]->unserialize(base + ".counter2", cp, section); } -Intel8254Timer::Counter::Counter(Intel8254Timer *p, const string &name) - : _name(name), event(this), count(0), latched_count(0), period(0), - mode(0), output_high(false), latch_on(false), read_byte(LSB), - write_byte(LSB), parent(p) +Intel8254Timer::Counter::Counter(Intel8254Timer *p, + const string &name, unsigned int _num) + : _name(name), num(_num), event(this), count(0), + latched_count(0), period(0), mode(0), output_high(false), + latch_on(false), read_byte(LSB), write_byte(LSB), parent(p) { } @@ -246,7 +247,6 @@ Intel8254Timer::Counter::CounterEvent::CounterEvent(Counter* c_ptr) void Intel8254Timer::Counter::CounterEvent::process() { - DPRINTF(Intel8254Timer, "Timer Interrupt\n"); switch (counter->mode) { case InitTc: counter->output_high = true; @@ -258,6 +258,7 @@ Intel8254Timer::Counter::CounterEvent::process() default: panic("Unimplemented PITimer mode.\n"); } + counter->parent->counterInterrupt(counter->num); } void @@ -273,5 +274,5 @@ Intel8254Timer::Counter::CounterEvent::setTo(int clocks) const char * Intel8254Timer::Counter::CounterEvent::description() const { - return "tsunami 8254 Interval timer"; + return "Intel 8254 Interval timer"; } |