struct drm_modeset_lock;
/**
- * drm_modeset_acquire_ctx - locking context (see ww_acquire_ctx)
+ * struct drm_modeset_acquire_ctx - locking context (see ww_acquire_ctx)
* @ww_ctx: base acquire ctx
* @contended: used internally for -EDEADLK handling
* @locked: list of held locks
* list of held locks (drm_modeset_lock)
*/
struct list_head locked;
+
+ /**
+ * Trylock mode, use only for panic handlers!
+ */
+ bool trylock_only;
};
/**
- * drm_modeset_lock - used for locking modeset resources.
+ * struct drm_modeset_lock - used for locking modeset resources.
* @mutex: resource locking
* @head: used to hold it's place on state->locked list when
* part of an atomic update
void drm_modeset_unlock(struct drm_modeset_lock *lock);
struct drm_device;
+struct drm_crtc;
void drm_modeset_lock_all(struct drm_device *dev);
+int __drm_modeset_lock_all(struct drm_device *dev, bool trylock);
void drm_modeset_unlock_all(struct drm_device *dev);
+void drm_modeset_lock_crtc(struct drm_crtc *crtc);
+void drm_modeset_unlock_crtc(struct drm_crtc *crtc);
void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
+struct drm_modeset_acquire_ctx *
+drm_modeset_legacy_acquire_ctx(struct drm_crtc *crtc);
int drm_modeset_lock_all_crtcs(struct drm_device *dev,
struct drm_modeset_acquire_ctx *ctx);