1 files changed, 34 insertions, 23 deletions

diff --git a/drivers/gpu/drm/nouveau/dispnv50/wndw.h b/drivers/gpu/drm/nouveau/dispnv50/wndw.h
index a7412b9d3a98..3278e2880034 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/wndw.h
+++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.h
@@ -57,48 +57,59 @@ struct nv50_wndw_func {
 	void (*prepare)(struct nv50_wndw *, struct nv50_head_atom *asyh,
 			struct nv50_wndw_atom *asyw);
 
-	void (*sema_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
-	void (*sema_clr)(struct nv50_wndw *);
+	int (*sema_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
+	int (*sema_clr)(struct nv50_wndw *);
 	void (*ntfy_reset)(struct nouveau_bo *, u32 offset);
-	void (*ntfy_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
-	void (*ntfy_clr)(struct nv50_wndw *);
+	int (*ntfy_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
+	int (*ntfy_clr)(struct nv50_wndw *);
 	int (*ntfy_wait_begun)(struct nouveau_bo *, u32 offset,
 			       struct nvif_device *);
 	bool (*ilut)(struct nv50_wndw *, struct nv50_wndw_atom *, int);
 	void (*csc)(struct nv50_wndw *, struct nv50_wndw_atom *,
 		    const struct drm_color_ctm *);
-	void (*csc_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
-	void (*csc_clr)(struct nv50_wndw *);
+	int (*csc_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
+	int (*csc_clr)(struct nv50_wndw *);
 	bool ilut_identity;
 	int  ilut_size;
 	bool olut_core;
-	void (*xlut_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
-	void (*xlut_clr)(struct nv50_wndw *);
-	void (*image_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
-	void (*image_clr)(struct nv50_wndw *);
-	void (*scale_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
-	void (*blend_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
-
-	void (*update)(struct nv50_wndw *, u32 *interlock);
+	int (*xlut_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
+	int (*xlut_clr)(struct nv50_wndw *);
+	int (*image_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
+	int (*image_clr)(struct nv50_wndw *);
+	int (*scale_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
+	int (*blend_set)(struct nv50_wndw *, struct nv50_wndw_atom *);
+
+	int (*update)(struct nv50_wndw *, u32 *interlock);
 };
 
 extern const struct drm_plane_funcs nv50_wndw;
 
 void base507c_ntfy_reset(struct nouveau_bo *, u32);
+int base507c_ntfy_set(struct nv50_wndw *, struct nv50_wndw_atom *);
+int base507c_ntfy_clr(struct nv50_wndw *);
 int base507c_ntfy_wait_begun(struct nouveau_bo *, u32, struct nvif_device *);
+int base507c_image_clr(struct nv50_wndw *);
+int base507c_update(struct nv50_wndw *, u32 *);
 
 void base907c_csc(struct nv50_wndw *, struct nv50_wndw_atom *,
 		  const struct drm_color_ctm *);
 
 struct nv50_wimm_func {
-	void (*point)(struct nv50_wndw *, struct nv50_wndw_atom *);
+	int (*point)(struct nv50_wndw *, struct nv50_wndw_atom *);
 
-	void (*update)(struct nv50_wndw *, u32 *interlock);
+	int (*update)(struct nv50_wndw *, u32 *interlock);
 };
 
 extern const struct nv50_wimm_func curs507a;
 bool curs507a_space(struct nv50_wndw *);
 
+static inline __must_check int
+nvif_chan_wait(struct nv50_dmac *dmac, u32 size)
+{
+	struct nv50_wndw *wndw = container_of(dmac, typeof(*wndw), wimm);
+	return curs507a_space(wndw) ? 0 : -ETIMEDOUT;
+}
+
 int wndwc37e_new(struct nouveau_drm *, enum drm_plane_type, int, s32,
 		 struct nv50_wndw **);
 int wndwc37e_new_(const struct nv50_wndw_func *, struct nouveau_drm *,
@@ -108,13 +119,13 @@ int wndwc37e_acquire(struct nv50_wndw *, struct nv50_wndw_atom *,
 		     struct nv50_head_atom *);
 void wndwc37e_release(struct nv50_wndw *, struct nv50_wndw_atom *,
 		      struct nv50_head_atom *);
-void wndwc37e_sema_set(struct nv50_wndw *, struct nv50_wndw_atom *);
-void wndwc37e_sema_clr(struct nv50_wndw *);
-void wndwc37e_ntfy_set(struct nv50_wndw *, struct nv50_wndw_atom *);
-void wndwc37e_ntfy_clr(struct nv50_wndw *);
-void wndwc37e_image_clr(struct nv50_wndw *);
-void wndwc37e_blend_set(struct nv50_wndw *, struct nv50_wndw_atom *);
-void wndwc37e_update(struct nv50_wndw *, u32 *);
+int wndwc37e_sema_set(struct nv50_wndw *, struct nv50_wndw_atom *);
+int wndwc37e_sema_clr(struct nv50_wndw *);
+int wndwc37e_ntfy_set(struct nv50_wndw *, struct nv50_wndw_atom *);
+int wndwc37e_ntfy_clr(struct nv50_wndw *);
+int wndwc37e_image_clr(struct nv50_wndw *);
+int wndwc37e_blend_set(struct nv50_wndw *, struct nv50_wndw_atom *);
+int wndwc37e_update(struct nv50_wndw *, u32 *);
 
 int wndwc57e_new(struct nouveau_drm *, enum drm_plane_type, int, s32,
 		 struct nv50_wndw **);