Bugfix: LSU trigger match could cause tracking of split misaligned transactions to get out of sync (!707) · Merge requests · OpenHW Group / backup-20241120 / cv32e40x

Eclipse Webmaster requested to merge github/fork/silabs-oysteink/silabs-oysteink_lsu-fix1 into master Nov 29, 2022

Created by: silabs-oysteink

Suppressing LSU valid_0_i on trigger_match_0_i could cause the split_q flag to reset to zero before the last part of an LSU was allowed to go from EX to WB. This could cause an address change and change of the trigger match value.

Updated setting/resetting of split_q to take trigger matches into account.

Added assertions to check that split_q is always 0 when a new LSU instruction enters the EX stage and that the trigger match flag is stable while an LSU instruction remains in EX.

Signed-off-by: Oystein Knauserud Oystein.Knauserud@silabs.com

ed files:

Bugfix: LSU trigger match could cause tracking of split misaligned transactions to get out of sync

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