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Enable power saving mode for queues created with throttle hint low.

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- When queue is created with throttle hint low it should be power conservative
- With this change whenever queues with low throttle setting requests wait
for GPU completion, such wait will be handled in power conservative manner.
- Whenever GPU is not completed, waiting thread will be put to sleep and will
for GPU completion that triggers the wake up interrupt.

Change-Id: I9f34872a38ab9f5952f9d9623ea43503fc3dd587
This commit is contained in:
Mrozek, Michal
2018-11-16 12:46:49 +01:00
committed by sys_ocldev
parent b897377306
commit 08424d798f
11 changed files with 75 additions and 34 deletions
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4
runtime/command_queue/command_queue.cpp
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@@ -133,7 +133,9 @@ void CommandQueue::waitUntilComplete(uint32_t taskCountToWait, FlushStamp flushS
DBG_LOG(LogTaskCounts, __FUNCTION__, "Waiting for taskCount:", taskCountToWait);
DBG_LOG(LogTaskCounts, __FUNCTION__, "Line: ", __LINE__, "Current taskCount:", getHwTag());
device->getCommandStreamReceiver().waitForTaskCountWithKmdNotifyFallback(taskCountToWait, flushStampToWait, useQuickKmdSleep, *device->getOsContext());
bool forcePowerSavingMode = this->throttle == QueueThrottle::LOW;
device->getCommandStreamReceiver().waitForTaskCountWithKmdNotifyFallback(taskCountToWait, flushStampToWait, useQuickKmdSleep, *device->getOsContext(), forcePowerSavingMode);
DEBUG_BREAK_IF(getHwTag() < taskCountToWait);
latestTaskCountWaited = taskCountToWait;