91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
/*
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* Copyright (c) 2017 - 2018, Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include "runtime/command_stream/linear_stream.h"
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#include "runtime/helpers/aligned_memory.h"
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#include "runtime/helpers/ptr_math.h"
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#include "runtime/helpers/basic_math.h"
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#include "runtime/memory_manager/memory_constants.h"
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namespace OCLRT {
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class GraphicsAllocation;
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constexpr size_t defaultHeapSize = 64 * KB;
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constexpr size_t maxSshSize = defaultHeapSize - MemoryConstants::pageSize;
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class IndirectHeap : public LinearStream {
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typedef LinearStream BaseClass;
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public:
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enum Type {
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DYNAMIC_STATE = 0,
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GENERAL_STATE,
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INDIRECT_OBJECT,
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SURFACE_STATE,
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NUM_TYPES
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};
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IndirectHeap(void *buffer, size_t bufferSize);
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IndirectHeap(GraphicsAllocation *buffer);
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IndirectHeap(GraphicsAllocation *buffer, bool canBeUtilizedAs4GbHeap);
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// Disallow copy'ing
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IndirectHeap(const IndirectHeap &) = delete;
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IndirectHeap &operator=(const IndirectHeap &) = delete;
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void align(size_t alignment);
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uint64_t getHeapGpuStartOffset() const;
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uint64_t getHeapGpuBase() const;
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uint32_t getHeapSizeInPages() const;
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protected:
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bool canBeUtilizedAs4GbHeap = false;
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};
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inline void IndirectHeap::align(size_t alignment) {
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auto address = alignUp(ptrOffset(buffer, sizeUsed), alignment);
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sizeUsed = ptrDiff(address, buffer);
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}
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inline uint64_t IndirectHeap::getHeapGpuStartOffset() const {
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if (this->canBeUtilizedAs4GbHeap) {
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return this->graphicsAllocation->getGpuAddressToPatch();
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} else {
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return 0llu;
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}
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}
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inline uint64_t IndirectHeap::getHeapGpuBase() const {
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if (this->canBeUtilizedAs4GbHeap) {
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return this->graphicsAllocation->gpuBaseAddress;
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} else {
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return this->graphicsAllocation->getGpuAddress();
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}
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}
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inline uint32_t IndirectHeap::getHeapSizeInPages() const {
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if (this->canBeUtilizedAs4GbHeap) {
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return MemoryConstants::sizeOf4GBinPageEntities;
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} else {
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return (static_cast<uint32_t>(getMaxAvailableSpace()) + MemoryConstants::pageMask) / MemoryConstants::pageSize;
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}
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}
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} // namespace OCLRT
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