[01/19] drm: Add drm_modeset_lock_assert_held()
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Message ID 20190708125325.16576-2-ville.syrjala@linux.intel.com
State New
Headers show
Series
  • drm/i915: Plane cdclk requirements and fp16 for gen4+
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Commit Message

Ville Syrjala July 8, 2019, 12:53 p.m. UTC
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Add a small wrapper around lockdep_assert_held() to make
it a bit more conventinet to use with modeset locks.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 include/drm/drm_modeset_lock.h | 9 +++++++++
 1 file changed, 9 insertions(+)

Patch
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diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h
index 7b8841065b11..4fc9a43ac45a 100644
--- a/include/drm/drm_modeset_lock.h
+++ b/include/drm/drm_modeset_lock.h
@@ -114,6 +114,15 @@  static inline bool drm_modeset_is_locked(struct drm_modeset_lock *lock)
 	return ww_mutex_is_locked(&lock->mutex);
 }
 
+/**
+ * drm_modeset_lock_assert_held - equivalent to lockdep_assert_held()
+ * @lock: lock to check
+ */
+static inline void drm_modeset_lock_assert_held(struct drm_modeset_lock *lock)
+{
+	lockdep_assert_held(&lock->mutex.base);
+}
+
 int drm_modeset_lock(struct drm_modeset_lock *lock,
 		struct drm_modeset_acquire_ctx *ctx);
 int __must_check drm_modeset_lock_single_interruptible(struct drm_modeset_lock *lock);