[PATCH v5 1/5] drm/i915/gt: Add intel_context_timeline_is_locked helper

[Andi Shyti <andi.shyti@linux.intel.com>]

We have:

 - intel_context_timeline_lock()
 - intel_context_timeline_unlock()

In the next patches we will also need:

 - intel_context_timeline_is_locked()

Add it.

Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_context.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_context.h b/drivers/gpu/drm/i915/gt/intel_context.h
index 48f888c3da083..f2f79ff0dfd1d 100644
--- a/drivers/gpu/drm/i915/gt/intel_context.h
+++ b/drivers/gpu/drm/i915/gt/intel_context.h
@@ -270,6 +270,12 @@ static inline void intel_context_timeline_unlock(struct intel_timeline *tl)
 	mutex_unlock(&tl->mutex);
 }
 
+static inline void intel_context_assert_timeline_is_locked(struct intel_timeline *tl)
+	__must_hold(&tl->mutex)
+{
+	lockdep_assert_held(&tl->mutex);
+}
+
 int intel_context_prepare_remote_request(struct intel_context *ce,
 					 struct i915_request *rq);
 
-- 
2.39.2