diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c
index 376f2c6..9d90d8b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c
@@ -263,7 +263,7 @@ nv50_disp_chan = {
 int
 nv50_disp_chan_ctor(const struct nv50_disp_chan_func *func,
 		    const struct nv50_disp_chan_mthd *mthd,
-		    struct nv50_disp_root *root, int chid, int head,
+		    struct nv50_disp_root *root, int ctrl, int user, int head,
 		    const struct nvkm_oclass *oclass,
 		    struct nv50_disp_chan *chan)
 {
@@ -273,8 +273,8 @@ nv50_disp_chan_ctor(const struct nv50_disp_chan_func *func,
 	chan->func = func;
 	chan->mthd = mthd;
 	chan->root = root;
-	chan->chid.ctrl = chid;
-	chan->chid.user = chid;
+	chan->chid.ctrl = ctrl;
+	chan->chid.user = user;
 	chan->head = head;
 
 	if (disp->chan[chan->chid.user]) {
@@ -288,7 +288,7 @@ nv50_disp_chan_ctor(const struct nv50_disp_chan_func *func,
 int
 nv50_disp_chan_new_(const struct nv50_disp_chan_func *func,
 		    const struct nv50_disp_chan_mthd *mthd,
-		    struct nv50_disp_root *root, int chid, int head,
+		    struct nv50_disp_root *root, int ctrl, int user, int head,
 		    const struct nvkm_oclass *oclass,
 		    struct nvkm_object **pobject)
 {
@@ -298,5 +298,6 @@ nv50_disp_chan_new_(const struct nv50_disp_chan_func *func,
 		return -ENOMEM;
 	*pobject = &chan->object;
 
-	return nv50_disp_chan_ctor(func, mthd, root, chid, head, oclass, chan);
+	return nv50_disp_chan_ctor(func, mthd, root, ctrl, user,
+				   head, oclass, chan);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h
index de8db9c..1897e5b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h
@@ -29,11 +29,11 @@ struct nv50_disp_chan_func {
 
 int nv50_disp_chan_ctor(const struct nv50_disp_chan_func *,
 			const struct nv50_disp_chan_mthd *,
-			struct nv50_disp_root *, int chid, int head,
+			struct nv50_disp_root *, int ctrl, int user, int head,
 			const struct nvkm_oclass *, struct nv50_disp_chan *);
 int nv50_disp_chan_new_(const struct nv50_disp_chan_func *,
 			const struct nv50_disp_chan_mthd *,
-			struct nv50_disp_root *, int chid, int head,
+			struct nv50_disp_root *, int ctrl, int user, int head,
 			const struct nvkm_oclass *, struct nvkm_object **);
 
 extern const struct nv50_disp_chan_func nv50_disp_pioc_func;
@@ -94,13 +94,16 @@ extern const struct nv50_disp_chan_mthd gk104_disp_ovly_chan_mthd;
 struct nv50_disp_pioc_oclass {
 	int (*ctor)(const struct nv50_disp_chan_func *,
 		    const struct nv50_disp_chan_mthd *,
-		    struct nv50_disp_root *, int chid,
+		    struct nv50_disp_root *, int ctrl, int user,
 		    const struct nvkm_oclass *, void *data, u32 size,
 		    struct nvkm_object **);
 	struct nvkm_sclass base;
 	const struct nv50_disp_chan_func *func;
 	const struct nv50_disp_chan_mthd *mthd;
-	int chid;
+	struct {
+		int ctrl;
+		int user;
+	} chid;
 };
 
 extern const struct nv50_disp_pioc_oclass nv50_disp_oimm_oclass;
@@ -121,12 +124,12 @@ extern const struct nv50_disp_pioc_oclass gk104_disp_curs_oclass;
 
 int nv50_disp_curs_new(const struct nv50_disp_chan_func *,
 		       const struct nv50_disp_chan_mthd *,
-		       struct nv50_disp_root *, int chid,
+		       struct nv50_disp_root *, int ctrl, int user,
 		       const struct nvkm_oclass *, void *data, u32 size,
 		       struct nvkm_object **);
 int nv50_disp_oimm_new(const struct nv50_disp_chan_func *,
 		       const struct nv50_disp_chan_mthd *,
-		       struct nv50_disp_root *, int chid,
+		       struct nv50_disp_root *, int ctrl, int user,
 		       const struct nvkm_oclass *, void *data, u32 size,
 		       struct nvkm_object **);
 #endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursg84.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursg84.c
index dd99fc7..fa781b5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursg84.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursg84.c
@@ -33,5 +33,5 @@ g84_disp_curs_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_curs_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 7,
+	.chid = { 7, 7 },
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgf119.c
index 2a1574e..2be6fb0 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgf119.c
@@ -33,5 +33,5 @@ gf119_disp_curs_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_curs_new,
 	.func = &gf119_disp_pioc_func,
-	.chid = 13,
+	.chid = { 13, 13 },
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgk104.c
index 28e8f06..2a99db4 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgk104.c
@@ -33,5 +33,5 @@ gk104_disp_curs_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_curs_new,
 	.func = &gf119_disp_pioc_func,
-	.chid = 13,
+	.chid = { 13, 13 },
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgt215.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgt215.c
index d8a4b9c..00a7f35 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgt215.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgt215.c
@@ -33,5 +33,5 @@ gt215_disp_curs_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_curs_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 7,
+	.chid = { 7, 7 },
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursnv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursnv50.c
index 8b13204..82ff82d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursnv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/cursnv50.c
@@ -33,7 +33,7 @@
 int
 nv50_disp_curs_new(const struct nv50_disp_chan_func *func,
 		   const struct nv50_disp_chan_mthd *mthd,
-		   struct nv50_disp_root *root, int chid,
+		   struct nv50_disp_root *root, int ctrl, int user,
 		   const struct nvkm_oclass *oclass, void *data, u32 size,
 		   struct nvkm_object **pobject)
 {
@@ -54,7 +54,7 @@ nv50_disp_curs_new(const struct nv50_disp_chan_func *func,
 	} else
 		return ret;
 
-	return nv50_disp_chan_new_(func, mthd, root, chid + head,
+	return nv50_disp_chan_new_(func, mthd, root, ctrl + head, user + head,
 				   head, oclass, pobject);
 }
 
@@ -65,5 +65,5 @@ nv50_disp_curs_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_curs_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 7,
+	.chid = { 7, 7 },
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.c
index cfba994..0a1381a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.c
@@ -149,7 +149,7 @@ nv50_disp_dmac_new_(const struct nv50_disp_dmac_func *func,
 	chan->func = func;
 
 	ret = nv50_disp_chan_ctor(&nv50_disp_dmac_func_, mthd, root,
-				  chid, head, oclass, &chan->base);
+				  chid, chid, head, oclass, &chan->base);
 	if (ret)
 		return ret;
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmg84.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmg84.c
index 54a4ae8..5ad5d0f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmg84.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmg84.c
@@ -33,5 +33,5 @@ g84_disp_oimm_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_oimm_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 5,
+	.chid = { 5, 5 },
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgf119.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgf119.c
index c658db5..1f9fd34 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgf119.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgf119.c
@@ -33,5 +33,5 @@ gf119_disp_oimm_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_oimm_new,
 	.func = &gf119_disp_pioc_func,
-	.chid = 9,
+	.chid = { 9, 9 },
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgk104.c
index b1fde8c..0c09fe8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgk104.c
@@ -33,5 +33,5 @@ gk104_disp_oimm_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_oimm_new,
 	.func = &gf119_disp_pioc_func,
-	.chid = 9,
+	.chid = { 9, 9 },
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgt215.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgt215.c
index f4e7eb3..1281db2 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgt215.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmgt215.c
@@ -33,5 +33,5 @@ gt215_disp_oimm_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_oimm_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 5,
+	.chid = { 5, 5 },
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmnv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmnv50.c
index 3940b9c..07540f3 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmnv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/oimmnv50.c
@@ -33,7 +33,7 @@
 int
 nv50_disp_oimm_new(const struct nv50_disp_chan_func *func,
 		   const struct nv50_disp_chan_mthd *mthd,
-		   struct nv50_disp_root *root, int chid,
+		   struct nv50_disp_root *root, int ctrl, int user,
 		   const struct nvkm_oclass *oclass, void *data, u32 size,
 		   struct nvkm_object **pobject)
 {
@@ -54,7 +54,7 @@ nv50_disp_oimm_new(const struct nv50_disp_chan_func *func,
 	} else
 		return ret;
 
-	return nv50_disp_chan_new_(func, mthd, root, chid + head,
+	return nv50_disp_chan_new_(func, mthd, root, ctrl + head, user + head,
 				   head, oclass, pobject);
 }
 
@@ -65,5 +65,5 @@ nv50_disp_oimm_oclass = {
 	.base.maxver = 0,
 	.ctor = nv50_disp_oimm_new,
 	.func = &nv50_disp_pioc_func,
-	.chid = 5,
+	.chid = { 5, 5 },
 };
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c
index 2f9cecd..05c829a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.c
@@ -207,8 +207,8 @@ nv50_disp_root_pioc_new_(const struct nvkm_oclass *oclass,
 {
 	const struct nv50_disp_pioc_oclass *sclass = oclass->priv;
 	struct nv50_disp_root *root = nv50_disp_root(oclass->parent);
-	return sclass->ctor(sclass->func, sclass->mthd, root, sclass->chid,
-			    oclass, data, size, pobject);
+	return sclass->ctor(sclass->func, sclass->mthd, root, sclass->chid.ctrl,
+			    sclass->chid.user, oclass, data, size, pobject);
 }
 
 static int
