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/*
* Copyright (C) 2017-2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/command_stream/linear_stream.h"
#include "shared/source/direct_submission/linux/drm_direct_submission.h"
#include "shared/source/execution_environment/execution_environment.h"
#include "shared/source/gmm_helper/gmm_helper.h"
#include "shared/source/gmm_helper/page_table_mngr.h"
#include "shared/source/helpers/aligned_memory.h"
#include "shared/source/helpers/flush_stamp.h"
#include "shared/source/helpers/hw_helper.h"
#include "shared/source/helpers/preamble.h"
#include "shared/source/memory_manager/residency.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_engine_mapper.h"
#include "shared/source/os_interface/linux/drm_memory_manager.h"
#include "shared/source/os_interface/linux/drm_memory_operations_handler.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"
#include "opencl/source/os_interface/linux/drm_command_stream.h"
#include <cstdlib>
#include <cstring>
namespace NEO {
template <typename GfxFamily>
DrmCommandStreamReceiver<GfxFamily>::DrmCommandStreamReceiver(ExecutionEnvironment &executionEnvironment, uint32_t rootDeviceIndex, gemCloseWorkerMode mode)
: BaseClass(executionEnvironment, rootDeviceIndex), gemCloseWorkerOperationMode(mode) {
auto rootDeviceEnvironment = executionEnvironment.rootDeviceEnvironments[rootDeviceIndex].get();
this->drm = rootDeviceEnvironment->osInterface->get()->getDrm();
residency.reserve(512);
execObjectsStorage.reserve(512);
auto hwInfo = rootDeviceEnvironment->getHardwareInfo();
auto localMemoryEnabled = HwHelper::get(hwInfo->platform.eRenderCoreFamily).getEnableLocalMemory(*hwInfo);
this->dispatchMode = localMemoryEnabled ? DispatchMode::BatchedDispatch : DispatchMode::ImmediateDispatch;
if (DebugManager.flags.CsrDispatchMode.get()) {
this->dispatchMode = static_cast<DispatchMode>(DebugManager.flags.CsrDispatchMode.get());
}
}
template <typename GfxFamily>
bool DrmCommandStreamReceiver<GfxFamily>::flush(BatchBuffer &batchBuffer, ResidencyContainer &allocationsForResidency) {
this->printDeviceIndex();
DrmAllocation *alloc = static_cast<DrmAllocation *>(batchBuffer.commandBufferAllocation);
DEBUG_BREAK_IF(!alloc);
BufferObject *bb = alloc->getBO();
if (bb == nullptr) {
return false;
}
if (this->lastSentSliceCount != batchBuffer.sliceCount) {
if (drm->setQueueSliceCount(batchBuffer.sliceCount)) {
this->lastSentSliceCount = batchBuffer.sliceCount;
}
}
auto memoryOperationsInterface = static_cast<DrmMemoryOperationsHandler *>(this->executionEnvironment.rootDeviceEnvironments[this->rootDeviceIndex]->memoryOperationsInterface.get());
auto lock = memoryOperationsInterface->lockHandlerForExecWA();
memoryOperationsInterface->mergeWithResidencyContainer(this->osContext, allocationsForResidency);
if (this->directSubmission.get()) {
memoryOperationsInterface->makeResidentWithinOsContext(this->osContext, ArrayRef<GraphicsAllocation *>(&batchBuffer.commandBufferAllocation, 1), true);
return this->directSubmission->dispatchCommandBuffer(batchBuffer, *this->flushStamp.get());
}
if (this->blitterDirectSubmission.get()) {
memoryOperationsInterface->makeResidentWithinOsContext(this->osContext, ArrayRef<GraphicsAllocation *>(&batchBuffer.commandBufferAllocation, 1), true);
return this->blitterDirectSubmission->dispatchCommandBuffer(batchBuffer, *this->flushStamp.get());
}
this->flushStamp->setStamp(bb->peekHandle());
this->flushInternal(batchBuffer, allocationsForResidency);
if (this->gemCloseWorkerOperationMode == gemCloseWorkerMode::gemCloseWorkerActive) {
bb->reference();
this->getMemoryManager()->peekGemCloseWorker()->push(bb);
}
return true;
}
template <typename GfxFamily>
void DrmCommandStreamReceiver<GfxFamily>::exec(const BatchBuffer &batchBuffer, uint32_t vmHandleId, uint32_t drmContextId) {
DrmAllocation *alloc = static_cast<DrmAllocation *>(batchBuffer.commandBufferAllocation);
DEBUG_BREAK_IF(!alloc);
BufferObject *bb = alloc->getBO();
DEBUG_BREAK_IF(!bb);
auto execFlags = static_cast<OsContextLinux *>(osContext)->getEngineFlag() | I915_EXEC_NO_RELOC;
if (DebugManager.flags.UseAsyncDrmExec.get() != -1) {
execFlags |= (EXEC_OBJECT_ASYNC * DebugManager.flags.UseAsyncDrmExec.get());
}
// Residency hold all allocation except command buffer, hence + 1
auto requiredSize = this->residency.size() + 1;
if (requiredSize > this->execObjectsStorage.size()) {
this->execObjectsStorage.resize(requiredSize);
}
int err = bb->exec(static_cast<uint32_t>(alignUp(batchBuffer.usedSize - batchBuffer.startOffset, 8)),
batchBuffer.startOffset, execFlags,
batchBuffer.requiresCoherency,
this->osContext,
vmHandleId,
drmContextId,
this->residency.data(), this->residency.size(),
this->execObjectsStorage.data());
UNRECOVERABLE_IF(err != 0);
this->residency.clear();
}
template <typename GfxFamily>
void DrmCommandStreamReceiver<GfxFamily>::processResidency(const ResidencyContainer &inputAllocationsForResidency, uint32_t handleId) {
for (auto &alloc : inputAllocationsForResidency) {
auto drmAlloc = static_cast<DrmAllocation *>(alloc);
drmAlloc->makeBOsResident(osContext, handleId, &this->residency, false);
}
}
template <typename GfxFamily>
void DrmCommandStreamReceiver<GfxFamily>::makeNonResident(GraphicsAllocation &gfxAllocation) {
// Vector is moved to command buffer inside flush.
// If flush wasn't called we need to make all objects non-resident.
// If makeNonResident is called before flush, vector will be cleared.
if (gfxAllocation.isResident(this->osContext->getContextId())) {
if (this->residency.size() != 0) {
this->residency.clear();
}
for (auto fragmentId = 0u; fragmentId < gfxAllocation.fragmentsStorage.fragmentCount; fragmentId++) {
gfxAllocation.fragmentsStorage.fragmentStorageData[fragmentId].residency->resident[osContext->getContextId()] = false;
}
}
gfxAllocation.releaseResidencyInOsContext(this->osContext->getContextId());
}
template <typename GfxFamily>
DrmMemoryManager *DrmCommandStreamReceiver<GfxFamily>::getMemoryManager() const {
return static_cast<DrmMemoryManager *>(CommandStreamReceiver::getMemoryManager());
}
template <typename GfxFamily>
GmmPageTableMngr *DrmCommandStreamReceiver<GfxFamily>::createPageTableManager() {
GmmPageTableMngr *gmmPageTableMngr = GmmPageTableMngr::create(this->executionEnvironment.rootDeviceEnvironments[this->rootDeviceIndex]->getGmmClientContext(), TT_TYPE::AUXTT, nullptr);
gmmPageTableMngr->setCsrHandle(this);
this->executionEnvironment.rootDeviceEnvironments[this->rootDeviceIndex]->pageTableManager.reset(gmmPageTableMngr);
return gmmPageTableMngr;
}
template <typename GfxFamily>
bool DrmCommandStreamReceiver<GfxFamily>::waitForFlushStamp(FlushStamp &flushStamp) {
drm_i915_gem_wait wait = {};
wait.bo_handle = static_cast<uint32_t>(flushStamp);
wait.timeout_ns = -1;
drm->ioctl(DRM_IOCTL_I915_GEM_WAIT, &wait);
return true;
}
} // namespace NEO
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