pci: add config space locking and set ecsm bit #228
Merged
+71
−3
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
Set ecsm to 1 in pci_cfg_set_addr to ensure that configuration
cycles are generated.
Add a global pci_cfg_lock spinlock in pci_cfg.c and corresponding
spin_lock/spin_unlock sections in pci_{read,write}* to ensure that
access to the config address and data IO ports are synchronized.
Signed-off-by: Connor Davis <connojd@amazon.com>
wipawel
approved these changes
Nov 18, 2021
dkgupta-amzn
approved these changes
Nov 28, 2021
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Outdated suggestions cannot be applied.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.
Set ecsm to 1 in pci_cfg_set_addr to ensure that configuration
cycles are generated.
Add a global pci_cfg_lock spinlock in pci_cfg.c and corresponding
spin_lock/spin_unlock sections in pci_{read,write}* to ensure that
access to the config address and data IO ports are synchronized.
Signed-off-by: Connor Davis connojd@amazon.com
Preliminary work towards Issue #179
By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.