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| author | Tangudu Tilak Tirumalesh <tilak.tirumalesh.tangudu@intel.com> | 2026-06-03 12:22:15 +0530 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2026-06-04 09:03:57 -0400 |
| commit | fa7c84726dc217ce0c183926ef9411636c7a2213 (patch) | |
| tree | 9abbf465ba848f41789c23c141d5a4b662e97e77 /rust/kernel/workqueue.rs | |
| parent | 42445de1765547f56f48d107c0b8f3482c98458e (diff) | |
Revert "drm/xe: Skip exec queue schedule toggle if queue is idle during suspend"
This reverts commit 8533051ce92015e9cc6f75e0d52119b9d91610b6.
The idle-skip optimization bypasses GuC suspend, so the GPU may not
perform the context switch that flushes TLB entries for invalidated
userptr VMAs. In LR/preempt-fence VM mode, this can lead to missed TLB
invalidation and page faults during userptr invalidation tests.
Restore unconditional schedule toggling on suspend so the context-switch
TLB flush is always performed.
This optimization will be reintroduced with a fix that does not skip
suspend in LR/preempt-fence VM mode.
Fixes: 8533051ce920 ("drm/xe: Skip exec queue schedule toggle if queue is idle during suspend")
Cc: stable@vger.kernel.org # v7.0+
Suggested-by: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Signed-off-by: Tangudu Tilak Tirumalesh <tilak.tirumalesh.tangudu@intel.com>
Reviewed-by: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patch.msgid.link/20260603065217.3131066-2-tilak.tirumalesh.tangudu@intel.com
(cherry picked from commit 6a1e7934d9a6cf46aecae00a99c2603d1295e170)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'rust/kernel/workqueue.rs')
0 files changed, 0 insertions, 0 deletions