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/*
* Copyright (C) 2018-2024 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/windows/wddm_residency_controller.h"
#include "shared/source/debug_settings/debug_settings_manager.h"
#include "shared/source/os_interface/windows/wddm/wddm.h"
#include "shared/source/os_interface/windows/wddm_allocation.h"
#include "shared/source/os_interface/windows/wddm_residency_allocations_container.h"
#include "shared/source/utilities/spinlock.h"
namespace NEO {
WddmResidencyController::WddmResidencyController(Wddm &wddm, uint32_t osContextId) : wddm(wddm), osContextId(osContextId) {
}
void WddmResidencyController::registerCallback() {
this->trimCallbackHandle = wddm.registerTrimCallback(WddmResidencyController::trimCallback, *this);
}
WddmResidencyController::~WddmResidencyController() {
auto lock = this->acquireTrimCallbackLock();
wddm.unregisterTrimCallback(WddmResidencyController::trimCallback, this->trimCallbackHandle);
lock.unlock();
// Wait for lock to ensure trimCallback ended
lock.lock();
}
std::unique_lock<SpinLock> WddmResidencyController::acquireLock() {
return std::unique_lock<SpinLock>{this->lock};
}
std::unique_lock<SpinLock> WddmResidencyController::acquireTrimCallbackLock() {
return std::unique_lock<SpinLock>{this->trimCallbackLock};
}
void WddmResidencyController::resetMonitoredFenceParams(D3DKMT_HANDLE &handle, uint64_t *cpuAddress, D3DGPU_VIRTUAL_ADDRESS &gpuAddress) {
monitoredFence.lastSubmittedFence = 0;
monitoredFence.currentFenceValue = 1;
monitoredFence.fenceHandle = handle;
monitoredFence.cpuAddress = cpuAddress;
monitoredFence.gpuAddress = gpuAddress;
}
/**
* @brief Makes resident passed allocations on a device
*
* @param[in] allocationsForResidency container of allocations which need to be resident.
* @param[out] requiresBlockingResidencyHandling flag indicating whether wait for paging fence must be handled in user thread.
* Setting to false means that it can be handled in background thread, which will signal semaphore after paging fence reaches required value.
*
* @note This method filters allocations which are already resident. After calling this method, passed allocationsForResidency will contain
* only allocations which were not resident before.
*
* @return returns true if all allocations either succeeded or are pending to be resident
*/
bool WddmResidencyController::makeResidentResidencyAllocations(ResidencyContainer &allocationsForResidency, bool &requiresBlockingResidencyHandling) {
constexpr uint32_t stackAllocations = 64;
constexpr uint32_t stackHandlesCount = NEO::maxFragmentsCount * EngineLimits::maxHandleCount * stackAllocations;
StackVec<D3DKMT_HANDLE, stackHandlesCount> handlesForResidency;
uint32_t totalHandlesCount = 0;
size_t totalSize = 0;
const auto currentFence = this->getMonitoredFence().currentFenceValue;
requiresBlockingResidencyHandling = false;
if (debugManager.flags.WaitForPagingFenceInController.get() != -1) {
requiresBlockingResidencyHandling = !debugManager.flags.WaitForPagingFenceInController.get();
}
auto lock = this->acquireLock();
DBG_LOG(ResidencyDebugEnable, "Residency:", __FUNCTION__, "currentFenceValue =", this->getMonitoredFence().currentFenceValue);
auto iter = allocationsForResidency.begin();
while (iter != allocationsForResidency.end()) {
WddmAllocation *allocation = static_cast<WddmAllocation *>(*iter);
ResidencyData &residencyData = allocation->getResidencyData();
static constexpr int maxFragments = 3;
bool fragmentResidency[maxFragments] = {false, false, false};
const auto fragmentCount = allocation->fragmentsStorage.fragmentCount;
UNRECOVERABLE_IF(fragmentCount > maxFragments);
totalSize += allocation->getAlignedSize();
DBG_LOG(ResidencyDebugEnable, "Residency:", __FUNCTION__, "allocation, gpu address = ", std::hex, allocation->getGpuAddress(), residencyData.resident[osContextId] ? "resident" : "not resident");
DBG_LOG(ResidencyDebugEnable, "Residency:", __FUNCTION__, "allocation, gpu address = ", std::hex, allocation->getGpuAddress(), "fence value to reach for eviction = ", currentFence);
allocation->getResidencyData().updateCompletionData(currentFence, this->osContextId);
bool isAlreadyResident = true;
if (fragmentCount > 0) {
for (uint32_t allocationId = 0; allocationId < fragmentCount; allocationId++) {
auto residencyData = allocation->fragmentsStorage.fragmentStorageData[allocationId].residency;
residencyData->updateCompletionData(currentFence, this->osContextId);
if (!fragmentResidency[allocationId]) {
handlesForResidency.push_back(static_cast<OsHandleWin *>(allocation->fragmentsStorage.fragmentStorageData[allocationId].osHandleStorage)->handle);
totalHandlesCount++;
requiresBlockingResidencyHandling |= (allocation->getAllocationType() != AllocationType::buffer && allocation->getAllocationType() != AllocationType::bufferHostMemory);
isAlreadyResident = false;
}
}
} else if (!residencyData.resident[osContextId]) {
for (uint32_t gmmId = 0; gmmId < allocation->getNumGmms(); ++gmmId) {
handlesForResidency.push_back(allocation->getHandle(gmmId));
totalHandlesCount++;
requiresBlockingResidencyHandling |= (allocation->getAllocationType() != AllocationType::buffer && allocation->getAllocationType() != AllocationType::bufferHostMemory);
isAlreadyResident = false;
}
}
if (isAlreadyResident) {
iter = allocationsForResidency.erase(iter);
} else {
iter++;
}
}
bool result = true;
if (totalHandlesCount) {
uint64_t bytesToTrim = 0;
while ((result = wddm.makeResident(&handlesForResidency[0], totalHandlesCount, false, &bytesToTrim, totalSize)) == false) {
this->setMemoryBudgetExhausted();
const bool trimmingDone = this->trimResidencyToBudget(bytesToTrim, lock);
if (!trimmingDone) {
auto evictionStatus = wddm.getTemporaryResourcesContainer()->evictAllResources();
if (evictionStatus == MemoryOperationsStatus::success) {
continue;
}
DEBUG_BREAK_IF(evictionStatus != MemoryOperationsStatus::memoryNotFound);
do {
result = wddm.makeResident(&handlesForResidency[0], totalHandlesCount, true, &bytesToTrim, totalSize);
} while (debugManager.flags.WaitForMemoryRelease.get() && result == false);
break;
}
}
}
if (result == true) {
iter = allocationsForResidency.begin();
while (iter != allocationsForResidency.end()) {
WddmAllocation *allocation = static_cast<WddmAllocation *>(*iter);
allocation->getResidencyData().resident[osContextId] = true;
for (uint32_t allocationId = 0; allocationId < allocation->fragmentsStorage.fragmentCount; allocationId++) {
auto residencyData = allocation->fragmentsStorage.fragmentStorageData[allocationId].residency;
residencyData->resident[osContextId] = true;
}
iter++;
}
}
return result;
}
bool WddmResidencyController::isInitialized() const {
bool requiresTrimCallbacks = OSInterface::requiresSupportForWddmTrimNotification;
requiresTrimCallbacks = requiresTrimCallbacks && (false == debugManager.flags.DoNotRegisterTrimCallback.get());
if (requiresTrimCallbacks) {
return trimCallbackHandle != nullptr;
}
return true;
}
void WddmResidencyController::setCommandStreamReceiver(CommandStreamReceiver *csr) {
this->csr = csr;
}
} // namespace NEO
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