109 lines
4.1 KiB
C++
109 lines
4.1 KiB
C++
/*
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* Copyright (C) 2020 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 "shared/source/command_stream/linear_stream.h"
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#include "shared/source/direct_submission/linux/drm_direct_submission.h"
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#include "shared/source/os_interface/linux/drm_allocation.h"
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#include "shared/source/os_interface/linux/drm_buffer_object.h"
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#include "shared/source/os_interface/linux/drm_neo.h"
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#include "shared/source/os_interface/linux/os_context_linux.h"
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#include <memory>
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namespace NEO {
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template <typename GfxFamily, typename Dispatcher>
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inline std::unique_ptr<DirectSubmissionHw<GfxFamily, Dispatcher>> DirectSubmissionHw<GfxFamily, Dispatcher>::create(Device &device, OsContext &osContext) {
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return std::make_unique<DrmDirectSubmission<GfxFamily, Dispatcher>>(device, osContext);
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}
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template <typename GfxFamily, typename Dispatcher>
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DrmDirectSubmission<GfxFamily, Dispatcher>::DrmDirectSubmission(Device &device,
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OsContext &osContext)
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: DirectSubmissionHw<GfxFamily, Dispatcher>(device, osContext){};
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template <typename GfxFamily, typename Dispatcher>
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inline DrmDirectSubmission<GfxFamily, Dispatcher>::~DrmDirectSubmission() {
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if (this->ringStart) {
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this->wait(static_cast<uint32_t>(this->currentTagData.tagValue));
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this->stopRingBuffer();
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auto bb = static_cast<DrmAllocation *>(this->ringBuffer)->getBO();
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bb->wait(-1);
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}
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this->deallocateResources();
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}
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template <typename GfxFamily, typename Dispatcher>
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bool DrmDirectSubmission<GfxFamily, Dispatcher>::allocateOsResources() {
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this->currentTagData.tagAddress = this->semaphoreGpuVa + MemoryConstants::cacheLineSize;
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this->currentTagData.tagValue = 0u;
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this->tagAddress = reinterpret_cast<volatile uint32_t *>(reinterpret_cast<uint8_t *>(this->semaphorePtr) + MemoryConstants::cacheLineSize);
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return true;
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}
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template <typename GfxFamily, typename Dispatcher>
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bool DrmDirectSubmission<GfxFamily, Dispatcher>::submit(uint64_t gpuAddress, size_t size) {
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auto bb = static_cast<DrmAllocation *>(this->ringCommandStream.getGraphicsAllocation())->getBO();
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auto osContextLinux = static_cast<OsContextLinux *>(&this->osContext);
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auto execFlags = osContextLinux->getEngineFlag() | I915_EXEC_NO_RELOC;
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auto &drmContextIds = osContextLinux->getDrmContextIds();
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drm_i915_gem_exec_object2 execObject{};
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bool ret = false;
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for (uint32_t drmIterator = 0u; drmIterator < drmContextIds.size(); drmIterator++) {
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ret |= bb->exec(static_cast<uint32_t>(size),
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0,
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execFlags,
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false,
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&this->osContext,
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drmIterator,
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drmContextIds[drmIterator],
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nullptr,
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0,
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&execObject);
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}
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return !ret;
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}
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template <typename GfxFamily, typename Dispatcher>
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bool DrmDirectSubmission<GfxFamily, Dispatcher>::handleResidency() {
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return true;
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}
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template <typename GfxFamily, typename Dispatcher>
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void DrmDirectSubmission<GfxFamily, Dispatcher>::handleSwitchRingBuffers() {
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if (this->ringStart) {
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if (this->completionRingBuffers[this->currentRingBuffer] != 0) {
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this->wait(static_cast<uint32_t>(this->completionRingBuffers[this->currentRingBuffer]));
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}
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}
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}
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template <typename GfxFamily, typename Dispatcher>
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uint64_t DrmDirectSubmission<GfxFamily, Dispatcher>::updateTagValue() {
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this->currentTagData.tagValue++;
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this->completionRingBuffers[this->currentRingBuffer] = this->currentTagData.tagValue;
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return 0ull;
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}
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template <typename GfxFamily, typename Dispatcher>
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void DrmDirectSubmission<GfxFamily, Dispatcher>::getTagAddressValue(TagData &tagData) {
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tagData.tagAddress = this->currentTagData.tagAddress;
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tagData.tagValue = this->currentTagData.tagValue + 1;
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}
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template <typename GfxFamily, typename Dispatcher>
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void DrmDirectSubmission<GfxFamily, Dispatcher>::wait(uint32_t taskCountToWait) {
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while (taskCountToWait > *this->tagAddress) {
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}
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}
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} // namespace NEO
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