95 lines
3.4 KiB
C++
95 lines
3.4 KiB
C++
/*
|
|
* Copyright (C) 2018-2023 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*
|
|
*/
|
|
|
|
#include "shared/source/helpers/kmd_notify_properties.h"
|
|
|
|
#include "shared/source/command_stream/queue_throttle.h"
|
|
#include "shared/source/command_stream/task_count_helper.h"
|
|
#include "shared/source/debug_settings/debug_settings_manager.h"
|
|
|
|
#include <chrono>
|
|
#include <cstdint>
|
|
|
|
using namespace NEO;
|
|
|
|
WaitParams KmdNotifyHelper::obtainTimeoutParams(bool quickKmdSleepRequest,
|
|
TagAddressType currentHwTag,
|
|
TaskCountType taskCountToWait,
|
|
FlushStamp flushStampToWait,
|
|
QueueThrottle throttle,
|
|
bool kmdWaitModeActive,
|
|
bool directSubmissionEnabled) {
|
|
if (throttle == QueueThrottle::HIGH) {
|
|
return WaitParams{true};
|
|
}
|
|
|
|
if (flushStampToWait == 0) {
|
|
return WaitParams{};
|
|
}
|
|
|
|
if (!kmdWaitModeActive) {
|
|
return WaitParams{};
|
|
}
|
|
|
|
if (debugManager.flags.PowerSavingMode.get() || throttle == QueueThrottle::LOW) {
|
|
return WaitParams{false, true, 1};
|
|
}
|
|
|
|
const int64_t taskCountDiff = (currentHwTag < taskCountToWait) ? static_cast<int64_t>(taskCountToWait - currentHwTag) : 1;
|
|
if (!properties->enableKmdNotify && taskCountDiff > KmdNotifyConstants::minimumTaskCountDiffToCheckAcLine) {
|
|
updateAcLineStatus();
|
|
}
|
|
|
|
quickKmdSleepRequest |= applyQuickKmdSleepForSporadicWait();
|
|
WaitParams params;
|
|
|
|
if (!properties->enableKmdNotify && !acLineConnected) {
|
|
params.waitTimeout = KmdNotifyConstants::timeoutInMicrosecondsForDisconnectedAcLine;
|
|
} else if (quickKmdSleepRequest && properties->enableQuickKmdSleep) {
|
|
params.waitTimeout = properties->delayQuickKmdSleepMicroseconds;
|
|
} else if (directSubmissionEnabled && properties->enableQuickKmdSleepForDirectSubmission) {
|
|
params.waitTimeout = properties->delayQuickKmdSleepForDirectSubmissionMicroseconds;
|
|
} else {
|
|
params.waitTimeout = properties->delayKmdNotifyMicroseconds;
|
|
}
|
|
|
|
params.enableTimeout = (properties->enableKmdNotify || !acLineConnected);
|
|
|
|
return params;
|
|
}
|
|
|
|
bool KmdNotifyHelper::applyQuickKmdSleepForSporadicWait() const {
|
|
if (properties->enableQuickKmdSleepForSporadicWaits) {
|
|
auto timeDiff = getMicrosecondsSinceEpoch() - lastWaitForCompletionTimestampUs.load();
|
|
if (timeDiff > properties->delayQuickKmdSleepForSporadicWaitsMicroseconds) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void KmdNotifyHelper::updateLastWaitForCompletionTimestamp() {
|
|
lastWaitForCompletionTimestampUs = getMicrosecondsSinceEpoch();
|
|
}
|
|
|
|
int64_t KmdNotifyHelper::getMicrosecondsSinceEpoch() const {
|
|
auto now = std::chrono::high_resolution_clock::now().time_since_epoch();
|
|
return std::chrono::duration_cast<std::chrono::microseconds>(now).count();
|
|
}
|
|
|
|
void KmdNotifyHelper::overrideFromDebugVariable(int32_t debugVariableValue, int64_t &destination) {
|
|
if (debugVariableValue >= 0) {
|
|
destination = static_cast<int64_t>(debugVariableValue);
|
|
}
|
|
}
|
|
|
|
void KmdNotifyHelper::overrideFromDebugVariable(int32_t debugVariableValue, bool &destination) {
|
|
if (debugVariableValue >= 0) {
|
|
destination = !!(debugVariableValue);
|
|
}
|
|
}
|