79 lines
2.7 KiB
Plaintext
79 lines
2.7 KiB
Plaintext
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/*
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* Copyright (C) 2019 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/helpers/blit_commands_helper.h"
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namespace NEO {
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template <typename GfxFamily>
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size_t BlitCommandsHelper<GfxFamily>::estimateBlitCommandsSize(uint64_t copySize) {
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size_t numberOfBlits = 0;
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uint64_t sizeToBlit = copySize;
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uint64_t width = 1;
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uint64_t height = 1;
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while (sizeToBlit != 0) {
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if (sizeToBlit > BlitterConstants::maxBlitWidth) {
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// 2D: maxBlitWidth x (1 .. maxBlitHeight)
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width = BlitterConstants::maxBlitWidth;
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height = std::min((sizeToBlit / width), BlitterConstants::maxBlitHeight);
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} else {
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// 1D: (1 .. maxBlitWidth) x 1
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width = sizeToBlit;
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height = 1;
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}
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sizeToBlit -= (width * height);
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numberOfBlits++;
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}
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size_t size = (sizeof(typename GfxFamily::XY_COPY_BLT) * numberOfBlits) +
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sizeof(typename GfxFamily::MI_FLUSH_DW) +
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sizeof(typename GfxFamily::MI_BATCH_BUFFER_END);
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return alignUp(size, MemoryConstants::cacheLineSize);
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}
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template <typename GfxFamily>
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void BlitCommandsHelper<GfxFamily>::dispatchBlitCommandsForBuffer(Buffer &buffer, LinearStream &linearStream,
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GraphicsAllocation &hostPtrAllocation, uint64_t copySize) {
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uint64_t sizeToBlit = copySize;
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uint64_t width = 1;
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uint64_t height = 1;
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uint64_t offset = 0;
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while (sizeToBlit != 0) {
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if (sizeToBlit > BlitterConstants::maxBlitWidth) {
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// dispatch 2D blit: maxBlitWidth x (1 .. maxBlitHeight)
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width = BlitterConstants::maxBlitWidth;
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height = std::min((sizeToBlit / width), BlitterConstants::maxBlitHeight);
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} else {
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// dispatch 1D blt: (1 .. maxBlitWidth) x 1
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width = sizeToBlit;
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height = 1;
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}
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auto bltCmd = linearStream.getSpaceForCmd<typename GfxFamily::XY_COPY_BLT>();
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*bltCmd = GfxFamily::cmdInitXyCopyBlt;
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bltCmd->setDestinationX1CoordinateLeft(0);
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bltCmd->setDestinationY1CoordinateTop(0);
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bltCmd->setSourceX1CoordinateLeft(0);
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bltCmd->setSourceY1CoordinateTop(0);
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bltCmd->setDestinationX2CoordinateRight(static_cast<uint32_t>(width));
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bltCmd->setDestinationY2CoordinateBottom(static_cast<uint32_t>(height));
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bltCmd->setDestinationBaseAddress(buffer.getGraphicsAllocation()->getGpuAddress() + offset);
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bltCmd->setSourceBaseAddress(hostPtrAllocation.getGpuAddress() + offset);
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auto blitSize = width * height;
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sizeToBlit -= blitSize;
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offset += blitSize;
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}
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}
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} // namespace NEO
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