104 lines
3.7 KiB
C++
104 lines
3.7 KiB
C++
/*
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* Copyright (C) 2018-2021 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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#pragma once
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#include "shared/source/built_ins/built_ins.h"
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#include "shared/source/command_stream/command_stream_receiver.h"
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#include "opencl/source/command_queue/command_queue_hw.h"
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#include "opencl/source/command_queue/enqueue_common.h"
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#include "opencl/source/helpers/hardware_commands_helper.h"
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#include "opencl/source/mem_obj/buffer.h"
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#include "opencl/source/memory_manager/mem_obj_surface.h"
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#include <new>
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namespace NEO {
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template <typename GfxFamily>
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cl_int CommandQueueHw<GfxFamily>::enqueueReadBufferRect(
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Buffer *buffer,
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cl_bool blockingRead,
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const size_t *bufferOrigin,
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const size_t *hostOrigin,
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const size_t *region,
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size_t bufferRowPitch,
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size_t bufferSlicePitch,
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size_t hostRowPitch,
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size_t hostSlicePitch,
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void *ptr,
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cl_uint numEventsInWaitList,
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const cl_event *eventWaitList,
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cl_event *event) {
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const cl_command_type cmdType = CL_COMMAND_READ_BUFFER_RECT;
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auto isMemTransferNeeded = true;
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if (buffer->isMemObjZeroCopy()) {
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size_t bufferOffset;
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size_t hostOffset;
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computeOffsetsValueForRectCommands(&bufferOffset, &hostOffset, bufferOrigin, hostOrigin, region, bufferRowPitch, bufferSlicePitch, hostRowPitch, hostSlicePitch);
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isMemTransferNeeded = buffer->checkIfMemoryTransferIsRequired(bufferOffset, hostOffset, ptr, cmdType);
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}
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if (!isMemTransferNeeded) {
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return enqueueMarkerForReadWriteOperation(buffer, ptr, cmdType, blockingRead,
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numEventsInWaitList, eventWaitList, event);
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}
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auto eBuiltInOps = EBuiltInOps::CopyBufferRect;
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if (forceStateless(buffer->getSize())) {
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eBuiltInOps = EBuiltInOps::CopyBufferRectStateless;
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}
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size_t hostPtrSize = Buffer::calculateHostPtrSize(hostOrigin, region, hostRowPitch, hostSlicePitch);
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void *dstPtr = ptr;
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MemObjSurface bufferSurf(buffer);
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HostPtrSurface hostPtrSurf(dstPtr, hostPtrSize);
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Surface *surfaces[] = {&bufferSurf, &hostPtrSurf};
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auto blitAllowed = blitEnqueueAllowed(cmdType);
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if (region[0] != 0 &&
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region[1] != 0 &&
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region[2] != 0) {
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auto &csr = getCommandStreamReceiver(blitAllowed);
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bool status = csr.createAllocationForHostSurface(hostPtrSurf, true);
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if (!status) {
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return CL_OUT_OF_RESOURCES;
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}
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dstPtr = reinterpret_cast<void *>(hostPtrSurf.getAllocation()->getGpuAddress());
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}
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void *alignedDstPtr = alignDown(dstPtr, 4);
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size_t dstPtrOffset = ptrDiff(dstPtr, alignedDstPtr);
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BuiltinOpParams dc;
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dc.srcMemObj = buffer;
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dc.dstPtr = alignedDstPtr;
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dc.srcOffset = bufferOrigin;
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dc.dstOffset = hostOrigin;
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dc.transferAllocation = hostPtrSurf.getAllocation();
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dc.dstOffset.x += dstPtrOffset;
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dc.size = region;
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dc.srcRowPitch = bufferRowPitch;
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dc.srcSlicePitch = bufferSlicePitch;
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dc.dstRowPitch = hostRowPitch;
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dc.dstSlicePitch = hostSlicePitch;
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MultiDispatchInfo dispatchInfo(dc);
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dispatchBcsOrGpgpuEnqueue<CL_COMMAND_READ_BUFFER_RECT>(dispatchInfo, surfaces, eBuiltInOps, numEventsInWaitList, eventWaitList, event, blockingRead, blitAllowed);
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if (context->isProvidingPerformanceHints()) {
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context->providePerformanceHintForMemoryTransfer(CL_COMMAND_READ_BUFFER_RECT, true, static_cast<cl_mem>(buffer), ptr);
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if (!isL3Capable(ptr, hostPtrSize)) {
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context->providePerformanceHint(CL_CONTEXT_DIAGNOSTICS_LEVEL_BAD_INTEL, CL_ENQUEUE_READ_BUFFER_RECT_DOESNT_MEET_ALIGNMENT_RESTRICTIONS, ptr, hostPtrSize, MemoryConstants::pageSize, MemoryConstants::pageSize);
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}
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}
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return CL_SUCCESS;
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}
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} // namespace NEO
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