When suspending, flush the context-guc-id
deregistration worker at the final stages of
intel_gt_suspend_late when we finally call gt_sanitize
that eventually leads down to __uc_sanitize so that
the deregistration worker doesn't fire off later as
we reset the GuC microcontroller.
Signed-off-by: Alan Previn <alan.previn.teres.alexis@xxxxxxxxx>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Tested-by: Mousumi Jana <mousumi.jana@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 5 +++++
drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h | 2 ++
drivers/gpu/drm/i915/gt/uc/intel_uc.c | 2 ++
3 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index 2cce5ec1ff00..a5b68f77e494 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -1610,6 +1610,11 @@ static void guc_flush_submissions(struct intel_guc *guc)
spin_unlock_irqrestore(&sched_engine->lock, flags);
}
+void intel_guc_submission_flush_work(struct intel_guc *guc)
+{
+ flush_work(&guc->submission_state.destroyed_worker);
+}
+
static void guc_flush_destroyed_contexts(struct intel_guc *guc);
void intel_guc_submission_reset_prepare(struct intel_guc *guc)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
index c57b29cdb1a6..b6df75622d3b 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
@@ -38,6 +38,8 @@ int intel_guc_wait_for_pending_msg(struct intel_guc *guc,
bool interruptible,
long timeout);
+void intel_guc_submission_flush_work(struct intel_guc *guc);
+
static inline bool intel_guc_submission_is_supported(struct intel_guc *guc)
{
return guc->submission_supported;
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
index 98b103375b7a..eb3554cb5ea4 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
@@ -693,6 +693,8 @@ void intel_uc_suspend(struct intel_uc *uc)
return;
}
+ intel_guc_submission_flush_work(guc);
+
with_intel_runtime_pm(&uc_to_gt(uc)->i915->runtime_pm, wakeref) {
err = intel_guc_suspend(guc);
if (err)
--
2.39.0
