Now that we always switch to the kernel context upon idling, we can
make that assertion.
References: 4dfacb0bcbee ("drm/i915: Switch to kernel context before idling at runtime")
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem.c | 31 ++++++++++++++++++-------------
1 file changed, 18 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index f5c4ef052001..66bb81cd43cd 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3498,6 +3498,22 @@ new_requests_since_last_retire(const struct drm_i915_private *i915)
work_pending(&i915->gt.idle_work.work));
}
+static void assert_kernel_context_is_current(struct drm_i915_private *i915)
+{
+ struct intel_engine_cs *engine;
+ enum intel_engine_id id;
+
+ if (i915_terminally_wedged(&i915->gpu_error))
+ return;
+
+ GEM_BUG_ON(i915->gt.active_requests);
+ for_each_engine(engine, i915, id) {
+ GEM_BUG_ON(__i915_gem_active_peek(&engine->timeline.last_request));
+ GEM_BUG_ON(engine->last_retired_context !=
+ to_intel_context(i915->kernel_context, engine));
+ }
+}
+
static void
i915_gem_idle_work_handler(struct work_struct *work)
{
@@ -3558,6 +3574,8 @@ i915_gem_idle_work_handler(struct work_struct *work)
if (new_requests_since_last_retire(dev_priv))
goto out_unlock;
+ assert_kernel_context_is_current(dev_priv);
+
epoch = __i915_gem_park(dev_priv);
rearm_hangcheck = false;
@@ -4944,19 +4962,6 @@ void __i915_gem_object_release_unless_active(struct drm_i915_gem_object *obj)
i915_gem_object_put(obj);
}
-static void assert_kernel_context_is_current(struct drm_i915_private *i915)
-{
- struct i915_gem_context *kctx = i915->kernel_context;
- struct intel_engine_cs *engine;
- enum intel_engine_id id;
-
- GEM_BUG_ON(i915->gt.active_requests);
- for_each_engine(engine, i915, id) {
- GEM_BUG_ON(__i915_gem_active_peek(&engine->timeline.last_request));
- GEM_BUG_ON(engine->last_retired_context->gem_context != kctx);
- }
-}
-
void i915_gem_sanitize(struct drm_i915_private *i915)
{
struct intel_engine_cs *engine;
--
2.17.1
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