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/*
* Copyright (C) 2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/linux/drm_memory_operations_handler_bind.h"
#include "shared/source/command_stream/command_stream_receiver.h"
#include "shared/source/debug_settings/debug_settings_manager.h"
#include "shared/source/device/device.h"
#include "shared/source/os_interface/linux/drm_allocation.h"
#include "shared/source/os_interface/linux/drm_buffer_object.h"
#include "shared/source/os_interface/linux/drm_memory_manager.h"
#include "shared/source/os_interface/linux/drm_neo.h"
#include "shared/source/os_interface/linux/os_context_linux.h"
#include "shared/source/os_interface/linux/os_interface.h"
namespace NEO {
DrmMemoryOperationsHandlerBind::DrmMemoryOperationsHandlerBind(RootDeviceEnvironment &rootDeviceEnvironment, uint32_t rootDeviceIndex)
: rootDeviceEnvironment(rootDeviceEnvironment),
rootDeviceIndex(rootDeviceIndex){};
DrmMemoryOperationsHandlerBind::~DrmMemoryOperationsHandlerBind() = default;
MemoryOperationsStatus DrmMemoryOperationsHandlerBind::makeResident(Device *device, ArrayRef<GraphicsAllocation *> gfxAllocations) {
auto engines = device->getEngines();
for (const auto &engine : engines) {
this->makeResidentWithinOsContext(engine.osContext, gfxAllocations, false);
}
return MemoryOperationsStatus::SUCCESS;
}
MemoryOperationsStatus DrmMemoryOperationsHandlerBind::makeResidentWithinOsContext(OsContext *osContext, ArrayRef<GraphicsAllocation *> gfxAllocations, bool evictable) {
std::lock_guard<std::mutex> lock(mutex);
for (auto gfxAllocation = gfxAllocations.begin(); gfxAllocation != gfxAllocations.end(); gfxAllocation++) {
auto drmAllocation = static_cast<DrmAllocation *>(*gfxAllocation);
for (auto drmIterator = 0u; drmIterator < osContext->getDeviceBitfield().size(); drmIterator++) {
if (osContext->getDeviceBitfield().test(drmIterator)) {
drmAllocation->makeBOsResident(osContext, drmIterator, nullptr, true);
}
}
if (!evictable) {
drmAllocation->updateResidencyTaskCount(GraphicsAllocation::objectAlwaysResident, osContext->getContextId());
}
}
return MemoryOperationsStatus::SUCCESS;
}
MemoryOperationsStatus DrmMemoryOperationsHandlerBind::evict(Device *device, GraphicsAllocation &gfxAllocation) {
auto engines = device->getEngines();
auto retVal = MemoryOperationsStatus::SUCCESS;
for (const auto &engine : engines) {
retVal = this->evictWithinOsContext(engine.osContext, gfxAllocation);
if (retVal != MemoryOperationsStatus::SUCCESS) {
return retVal;
}
}
return MemoryOperationsStatus::SUCCESS;
}
MemoryOperationsStatus DrmMemoryOperationsHandlerBind::evictWithinOsContext(OsContext *osContext, GraphicsAllocation &gfxAllocation) {
std::lock_guard<std::mutex> lock(mutex);
evictImpl(osContext, gfxAllocation, osContext->getDeviceBitfield());
return MemoryOperationsStatus::SUCCESS;
}
void DrmMemoryOperationsHandlerBind::evictImpl(OsContext *osContext, GraphicsAllocation &gfxAllocation, DeviceBitfield deviceBitfield) {
auto drmAllocation = static_cast<DrmAllocation *>(&gfxAllocation);
for (auto drmIterator = 0u; drmIterator < deviceBitfield.size(); drmIterator++) {
if (deviceBitfield.test(drmIterator)) {
drmAllocation->makeBOsResident(osContext, drmIterator, nullptr, false);
}
}
drmAllocation->updateResidencyTaskCount(GraphicsAllocation::objectNotResident, osContext->getContextId());
}
MemoryOperationsStatus DrmMemoryOperationsHandlerBind::isResident(Device *device, GraphicsAllocation &gfxAllocation) {
std::lock_guard<std::mutex> lock(mutex);
bool isResident = true;
auto engines = device->getEngines();
for (const auto &engine : engines) {
isResident &= gfxAllocation.isAlwaysResident(engine.osContext->getContextId());
}
if (isResident) {
return MemoryOperationsStatus::SUCCESS;
}
return MemoryOperationsStatus::MEMORY_NOT_FOUND;
}
void DrmMemoryOperationsHandlerBind::mergeWithResidencyContainer(OsContext *osContext, ResidencyContainer &residencyContainer) {
this->makeResidentWithinOsContext(osContext, ArrayRef<GraphicsAllocation *>(residencyContainer), true);
residencyContainer.clear();
}
std::unique_lock<std::mutex> DrmMemoryOperationsHandlerBind::lockHandlerForExecWA() {
return std::unique_lock<std::mutex>();
}
void DrmMemoryOperationsHandlerBind::evictUnusedAllocations() {
auto memoryManager = static_cast<DrmMemoryManager *>(this->rootDeviceEnvironment.executionEnvironment.memoryManager.get());
std::lock_guard<std::mutex> lock(mutex);
auto allocLock = memoryManager->acquireAllocLock();
this->evictUnusedAllocationsImpl(memoryManager->getSysMemAllocs());
this->evictUnusedAllocationsImpl(memoryManager->getLocalMemAllocs(this->rootDeviceIndex));
}
void DrmMemoryOperationsHandlerBind::evictUnusedAllocationsImpl(std::vector<GraphicsAllocation *> &allocationsForEviction) {
const auto &engines = this->rootDeviceEnvironment.executionEnvironment.memoryManager->getRegisteredEngines();
std::vector<GraphicsAllocation *> evictCandidates;
for (auto subdeviceIndex = 0u; subdeviceIndex < HwHelper::getSubDevicesCount(rootDeviceEnvironment.getHardwareInfo()); subdeviceIndex++) {
for (auto &allocation : allocationsForEviction) {
bool evict = true;
for (const auto &engine : engines) {
if (this->rootDeviceIndex == engine.commandStreamReceiver->getRootDeviceIndex() &&
engine.osContext->getDeviceBitfield().test(subdeviceIndex)) {
evict &= allocation->isResidencyTaskCountBelow(*engine.commandStreamReceiver->getTagAddress(), engine.osContext->getContextId());
}
}
if (evict) {
evictCandidates.push_back(allocation);
}
}
for (auto &allocationToEvict : evictCandidates) {
for (const auto &engine : engines) {
if (this->rootDeviceIndex == engine.commandStreamReceiver->getRootDeviceIndex() &&
engine.osContext->getDeviceBitfield().test(subdeviceIndex)) {
DeviceBitfield deviceBitfield;
deviceBitfield.set(subdeviceIndex);
this->evictImpl(engine.osContext, *allocationToEvict, deviceBitfield);
}
}
}
evictCandidates.clear();
}
}
} // namespace NEO
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