Lower cache_read and cache_write to Hexagon DMA via tensorize #10365
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adstraw
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Hzfengsy,
ZihengJiang,
areusch,
comaniac,
icemelon,
jroesch,
junrushao,
kazum,
kparzysz-quic,
liangfu,
masahi,
merrymercy,
tmoreau89,
tqchen,
vinx13 and
yzhliu
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HUGE thanks to @masahi who also contributed to this PR. |
masahi
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Feb 24, 2022
masahi
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Feb 24, 2022
| * Same semantics as memcpy(destination, source, size) | ||
| * Allows for device specific implementations e.g. direct memory access (DMA) | ||
| */ | ||
| TVM_DLL const Op& mem_copy(); |
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cc @tqchen @junrushao1994 if they want a better name here.
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Is it possible to make it more specific? We have a few examples above like texture2d_load/store. What about dma_mem_copy() or any hexagon-specific name?
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I was thinking about something with "DMA" in the name but I realized that DMA is more of an implementation detail. I ended up referencing DMA in the comments instead. Happy to take suggestions including dma_mem_copy.
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I thought about:
mem_copy_local(to emphasize the local nature of the intended usage, unlikeTVMArrayCopyFromTo@junrushao1994 mentioned which might involve RPC)mem_copy_1d(if we intend to add 2d rectangular memcpy later)
But both of them don't particularly sound better.
masahi
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Feb 24, 2022
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masahi
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Apr 11, 2022
…#10365) * Lower cache_read and cache_write to Hexagon DMA via tensorize * rework test to be compatible with launcher * remove cpu device api mem_copy implementation and test
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Adds support to lower
cache_readandcache_writeschedule primitives to Hexagon User DMA usingtensorizeand newmem_copyintrinsic.