[quidditch_snitch] Basic implementations of DMA operations #54
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This PR implements DMA copy and wait operations. Snitch's DMA is asnychronous and has special hardware support for faster transfers between L1 and L3 than doing it manually. The currentl lowering to LLVM simple performs calls into the snitch runtime for convenience with the idea of these being later inlined via LTO once implemented. Noteworthy is that the support for various memref shapes, strides and dimension is currently very limited but enough for what IREE generates.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR implements DMA copy and wait operations. Snitch's DMA is asnychronous and has special hardware support for faster transfers between L1 and L3 than doing it manually. The currentl lowering to LLVM simple performs calls into the snitch runtime for convenience with the idea of these being later inlined via LTO once implemented.
Noteworthy is that the support for various memref shapes, strides and dimension is currently very limited but enough for what IREE generates.