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| author | Nirmoy Das <nirmoy.das@intel.com> | 2024-10-29 13:01:17 +0100 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2024-11-04 08:12:30 -0800 |
| commit | 1491efb39acee3848b61fcb3e5cc4be8de304352 (patch) | |
| tree | 5c492f1b513383f22b208f4529a0f77382ee8204 | |
| parent | 7d1e2580ed166f36949b468373b468d188880cd3 (diff) | |
| download | linux-1491efb39acee3848b61fcb3e5cc4be8de304352.tar.gz linux-1491efb39acee3848b61fcb3e5cc4be8de304352.tar.bz2 linux-1491efb39acee3848b61fcb3e5cc4be8de304352.zip | |
drm/xe/guc/tlb: Flush g2h worker in case of tlb timeout
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@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: stable@vger.kernel.org # v6.11+
Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/2687
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241029120117.449694-3-nirmoy.das@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit e1f6fa55664a0eeb0a641f497e1adfcf6672e995)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c index bbb9e411d21f..9d82ea30f4df 100644 --- a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c +++ b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c @@ -72,6 +72,8 @@ static void xe_gt_tlb_fence_timeout(struct work_struct *work) struct xe_device *xe = gt_to_xe(gt); struct xe_gt_tlb_invalidation_fence *fence, *next; + LNL_FLUSH_WORK(>->uc.guc.ct.g2h_worker); + spin_lock_irq(>->tlb_invalidation.pending_lock); list_for_each_entry_safe(fence, next, >->tlb_invalidation.pending_fences, link) { |