[KVCache] Fix attention prefill kernel for Metal and Android #17539
Conversation
This file contains hidden or 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 fixes two bugs of the attention prefill ragged kernel. * The first bug is the unroll of loop `ki`, which causes the TIR build failure in the PointerValueTypeRewrite pass due to vector size. * The second is the tile sizes of `tile_z` and `tile_y` may violate the assertion check in `get_tile_size`.
tqchen
approved these changes
Nov 21, 2024
ShiboXing
pushed a commit
to ShiboXing/tvm
that referenced
this pull request
Aug 10, 2025
…17539) This PR fixes two bugs of the attention prefill ragged kernel. * The first bug is the unroll of loop `ki`, which causes the TIR build failure in the PointerValueTypeRewrite pass due to vector size. * The second is the tile sizes of `tile_z` and `tile_y` may violate the assertion check in `get_tile_size`.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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Outdated suggestions cannot be applied.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 fixes two bugs of the attention prefill ragged kernel.
ki, which causes the TIR build failure in the PointerValueTypeRewrite pass due to vector size.tile_zandtile_ymay violate the assertion check inget_tile_size.