Beagle setway dcache maintenance #194
Merged
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
Cache maintenance by set/way should only be used to manage the state of a particular level in the cache hierarchy while the CPU is not taking part in the coherency protocol. Use for any other purpose is not supported by the architecture, and so the ArmLib routines that rely on this will be removed. BeagleBoard is a uni-processor system with non-cache coherent DMA, where the use of set/way instructions to remove junk from the D-caches at power-on is not entirely unreasonable. So incorporate the D-cache invalidation code from ArmLib before dropping it from the library. Signed-off-by: Ard Biesheuvel <[email protected]>
ardbiesheuvel
force-pushed
the
beagle-setway-dcache-maintenance
branch
from
98fb3ae
to
578eefe
Compare
leiflindholm
approved these changes
Sep 12, 2024
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Outdated suggestions cannot be applied.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.
Copy ArmLib set/way cache maintenance code into beagle, which is the only remaining user