On 29/10/2024 12:01, Nirmoy Das wrote:
Flush the g2h worker explicitly if TLB timeout happens which is observed on LNL and that points to the recent scheduling issue with E-cores on LNL. This is similar to the recent fix: commit e51527233804 ("drm/xe/guc/ct: Flush g2h worker in case of g2h response timeout") and should be removed once there is E core scheduling fix. v2: Add platform check(Himal) v3: Remove gfx platform check as the issue related to cpu platform(John) Use the common WA macro(John) and print when the flush resolves timeout(Matt B) v4: Remove the resolves log and do the flush before taking pending_lock(Matt A) Cc: Badal Nilawar <badal.nilawar@xxxxxxxxx> Cc: Matthew Brost <matthew.brost@xxxxxxxxx> Cc: Matthew Auld <matthew.auld@xxxxxxxxx> Cc: John Harrison <John.C.Harrison@xxxxxxxxx> Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@xxxxxxxxx> Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> # v6.11+ Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/2687 Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxxxx>
Reviewed-by: Matthew Auld <matthew.auld@xxxxxxxxx>