84 lines
4.6 KiB
C++
84 lines
4.6 KiB
C++
/*
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* Copyright (C) 2018 Intel Corporation
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*
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* SPDX-License-Identifier: MIT
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*
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*/
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#include "runtime/command_stream/command_stream_receiver.h"
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#include "runtime/command_stream/experimental_command_buffer.h"
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#include "runtime/command_stream/linear_stream.h"
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#include "runtime/memory_manager/internal_allocation_storage.h"
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#include "runtime/memory_manager/memory_constants.h"
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#include "runtime/memory_manager/memory_manager.h"
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#include <cstring>
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#include <type_traits>
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namespace OCLRT {
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ExperimentalCommandBuffer::ExperimentalCommandBuffer(CommandStreamReceiver *csr, double profilingTimerResolution) : commandStreamReceiver(csr),
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currentStream(nullptr),
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timestampsOffset(0),
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experimentalAllocationOffset(0),
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defaultPrint(true),
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timerResolution(profilingTimerResolution) {
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timestamps = csr->getMemoryManager()->allocateGraphicsMemoryWithProperties({MemoryConstants::pageSize, GraphicsAllocation::AllocationType::UNDECIDED});
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memset(timestamps->getUnderlyingBuffer(), 0, timestamps->getUnderlyingBufferSize());
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experimentalAllocation = csr->getMemoryManager()->allocateGraphicsMemoryWithProperties({MemoryConstants::pageSize, GraphicsAllocation::AllocationType::UNDECIDED});
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memset(experimentalAllocation->getUnderlyingBuffer(), 0, experimentalAllocation->getUnderlyingBufferSize());
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}
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ExperimentalCommandBuffer::~ExperimentalCommandBuffer() {
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auto timestamp = static_cast<uint64_t *>(timestamps->getUnderlyingBuffer());
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for (uint32_t i = 0; i < timestampsOffset / (2 * sizeof(uint64_t)); i++) {
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auto stop = static_cast<uint64_t>(*(timestamp + 1) * timerResolution);
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auto start = static_cast<uint64_t>(*timestamp * timerResolution);
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auto delta = stop - start;
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printDebugString(defaultPrint, stdout, "#%u: delta %llu start %llu stop %llu\n", i, delta, start, stop);
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timestamp += 2;
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}
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MemoryManager *memoryManager = commandStreamReceiver->getMemoryManager();
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memoryManager->freeGraphicsMemory(timestamps);
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memoryManager->freeGraphicsMemory(experimentalAllocation);
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if (currentStream.get()) {
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memoryManager->freeGraphicsMemory(currentStream->getGraphicsAllocation());
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currentStream->replaceGraphicsAllocation(nullptr);
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}
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}
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void ExperimentalCommandBuffer::getCS(size_t minRequiredSize) {
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if (!currentStream) {
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currentStream.reset(new LinearStream(nullptr));
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}
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minRequiredSize += CSRequirements::minCommandQueueCommandStreamSize;
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if (currentStream->getAvailableSpace() < minRequiredSize) {
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MemoryManager *memoryManager = commandStreamReceiver->getMemoryManager();
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// If not, allocate a new block. allocate full pages
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minRequiredSize = alignUp(minRequiredSize, MemoryConstants::pageSize);
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auto requiredSize = minRequiredSize + CSRequirements::csOverfetchSize;
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auto storageWithAllocations = commandStreamReceiver->getInternalAllocationStorage();
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GraphicsAllocation *allocation = storageWithAllocations->obtainReusableAllocation(requiredSize, false).release();
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if (!allocation) {
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allocation = memoryManager->allocateGraphicsMemoryWithProperties({requiredSize, GraphicsAllocation::AllocationType::LINEAR_STREAM});
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}
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allocation->setAllocationType(GraphicsAllocation::AllocationType::LINEAR_STREAM);
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// Deallocate the old block, if not null
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auto oldAllocation = currentStream->getGraphicsAllocation();
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if (oldAllocation) {
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storageWithAllocations->storeAllocation(std::unique_ptr<GraphicsAllocation>(oldAllocation), REUSABLE_ALLOCATION);
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}
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currentStream->replaceBuffer(allocation->getUnderlyingBuffer(), minRequiredSize - CSRequirements::minCommandQueueCommandStreamSize);
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currentStream->replaceGraphicsAllocation(allocation);
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}
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}
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void ExperimentalCommandBuffer::makeResidentAllocations() {
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commandStreamReceiver->makeResident(*currentStream->getGraphicsAllocation());
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commandStreamReceiver->makeResident(*timestamps);
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commandStreamReceiver->makeResident(*experimentalAllocation);
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}
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} // namespace OCLRT
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