mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-02-24 03:04:16 -05:00
Code Issues Packages Projects Releases Wiki Activity

drm/xe/guc/tlb: Flush g2h worker in case of tlb timeout

Browse Source 
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 e515272338 ("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>
This commit is contained in:
Nirmoy Das
2024-10-29 13:01:17 +01:00
committed by Lucas De Marchi
parent 38c4c8722b
commit e1f6fa5566
1 changed files with 2 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c
View File

@@ -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(&gt->uc.guc.ct.g2h_worker);
spin_lock_irq(&gt->tlb_invalidation.pending_lock);
list_for_each_entry_safe(fence, next,
&gt->tlb_invalidation.pending_fences, link) {