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#include "base/timebuf.hh"
#include "cpu/activity.hh"
ActivityRecorder::ActivityRecorder(int num_stages, int longest_latency,
int activity)
: activityBuffer(longest_latency, 0), longestLatency(longest_latency),
activityCount(activity), numStages(num_stages)
{
stageActive = new bool[numStages];
memset(stageActive, 0, numStages);
}
void
ActivityRecorder::activity()
{
if (activityBuffer[0]) {
return;
}
activityBuffer[0] = true;
++activityCount;
DPRINTF(Activity, "Activity: %i\n", activityCount);
}
void
ActivityRecorder::advance()
{
if (activityBuffer[-longestLatency]) {
--activityCount;
assert(activityCount >= 0);
DPRINTF(Activity, "Activity: %i\n", activityCount);
if (activityCount == 0) {
DPRINTF(Activity, "No activity left!\n");
}
}
activityBuffer.advance();
}
void
ActivityRecorder::activateStage(const int idx)
{
if (!stageActive[idx]) {
++activityCount;
stageActive[idx] = true;
DPRINTF(Activity, "Activity: %i\n", activityCount);
} else {
DPRINTF(Activity, "Stage %i already active.\n", idx);
}
// assert(activityCount < longestLatency + numStages + 1);
}
void
ActivityRecorder::deactivateStage(const int idx)
{
if (stageActive[idx]) {
--activityCount;
stageActive[idx] = false;
DPRINTF(Activity, "Activity: %i\n", activityCount);
} else {
DPRINTF(Activity, "Stage %i already inactive.\n", idx);
}
assert(activityCount >= 0);
}
void
ActivityRecorder::reset()
{
activityCount = 0;
memset(stageActive, 0, numStages);
for (int i = 0; i < longestLatency + 1; ++i)
activityBuffer.advance();
}
void
ActivityRecorder::dump()
{
for (int i = 0; i <= longestLatency; ++i) {
cprintf("[Idx:%i %i] ", i, activityBuffer[-i]);
}
cprintf("\n");
for (int i = 0; i < numStages; ++i) {
cprintf("[Stage:%i %i]\n", i, stageActive[i]);
}
cprintf("\n");
cprintf("Activity count: %i\n", activityCount);
}
void
ActivityRecorder::validate()
{
int count = 0;
for (int i = 0; i <= longestLatency; ++i) {
if (activityBuffer[-i]) {
count++;
}
}
for (int i = 0; i < numStages; ++i) {
if (stageActive[i]) {
count++;
}
}
assert(count == activityCount);
}
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