drivers: dma: silabs: modify LDMA driver to handle large dma_block_config #92960
+46
−63
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
Martinhoff-maker
force-pushed
the
ldma_multiple_hw_descriptor
branch
from
69b8dec to
206d82f
Compare
The LDMA driver currently has a 1:1 mapping between hardware LDMA descriptors and struct dma_block_config. This patch allows multiple hardware descriptors to be allocated for a single struct dma_block_config if the block size exceeds the transfer capacity of a single hardware LDMA descriptor. This is beneficial for other peripheral drivers: it is no longer necessary to split the payload by the transfer capacity of a single hardware LDMA descriptor. Signed-off-by: Martin Hoff <martin.hoff@silabs.com>
We need to add CONFIG_DMA_MAX_DESCRIPTOR=16 for a lot of tests, then this default value of this parameter need to be higher. It allows to delete some overlay files. Signed-off-by: Martin Hoff <martin.hoff@silabs.com>
With the recent upgrade of the LDMA driver, these conf files are no longer needed. (The LDMA driver now supports channel allocation and large transfers) Signed-off-by: Martin Hoff <martin.hoff@silabs.com>
Martinhoff-maker
force-pushed
the
ldma_multiple_hw_descriptor
branch
from
206d82f to
b2e030e
Compare
|
github-actions
bot
added
area: DMA
github-actions
bot
requested review from
asmellby,
jerome-pouiller,
jhedberg and
teburd
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Outdated suggestions cannot be applied.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.
The goal of this PR is to allows multiple hardware descriptors to be allocated for a single struct dma_block_config if the block size exceeds the transfer capacity of a single hardware LDMA descriptor. This is beneficial for other peripheral drivers: it is no longer necessary to split the payload by the transfer capacity of a single hardware LDMA descriptor.
It also contains cleanup for Silabs board DMA test files and update the default value for the max number of DMA descriptor.