janetsc commented on code in PR #13381: URL: https://github.com/apache/tvm/pull/13381#discussion_r1023108215
########## src/runtime/hexagon/hexagon_buffer.cc: ########## @@ -237,8 +236,15 @@ void hexagon_buffer_copy_across_regions(const BufferSet& dest, const BufferSet& // Finally, do the memory copies. for (const auto& copy : macro_copies) { - int error_code = hexagon_user_dma_1d_sync(copy.dest, copy.src, copy.num_bytes); - CHECK_EQ(error_code, 0); + qurt_mem_cache_clean(reinterpret_cast<qurt_addr_t>(copy.dest), copy.num_bytes, + QURT_MEM_CACHE_INVALIDATE, QURT_MEM_DCACHE); + qurt_mem_cache_clean(reinterpret_cast<qurt_addr_t>(copy.src), copy.num_bytes, + QURT_MEM_CACHE_INVALIDATE, QURT_MEM_DCACHE); + memcpy(copy.dest, copy.src, copy.num_bytes); + qurt_mem_cache_clean(reinterpret_cast<qurt_addr_t>(copy.dest), copy.num_bytes, Review Comment: Based on our discussion just now, I understand better. I agree a TODO here is good. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@tvm.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org