drm/nouveau/instmem: instobjs may not have an engine

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/core/subdev/instmem/base.c

@@ -31,7 +31,7 @@
 void
 _nouveau_instobj_dtor(struct nouveau_object *object)
 {
-	struct nouveau_instmem *imem = (void *)object->engine;
+	struct nouveau_instmem *imem = nouveau_instmem(object);
 	struct nouveau_instobj *iobj = (void *)object;
 
 	mutex_lock(&nv_subdev(imem)->mutex);
@@ -47,7 +47,7 @@ nouveau_instobj_create_(struct nouveau_object *parent,
 			struct nouveau_oclass *oclass,
 			int length, void **pobject)
 {
-	struct nouveau_instmem *imem = (void *)engine;
+	struct nouveau_instmem *imem = nouveau_instmem(parent);
 	struct nouveau_instobj *iobj;
 	int ret;
 
@@ -72,10 +72,9 @@ nouveau_instmem_alloc(struct nouveau_instmem *imem,
 		      struct nouveau_object *parent, u32 size, u32 align,
 		      struct nouveau_object **pobject)
 {
-	struct nouveau_object *engine = nv_object(imem);
-	struct nouveau_instmem_impl *impl = (void *)engine->oclass;
+	struct nouveau_instmem_impl *impl = (void *)imem->base.object.oclass;
 	struct nouveau_instobj_args args = { .size = size, .align = align };
-	return nouveau_object_ctor(parent, engine, impl->instobj, &args,
+	return nouveau_object_ctor(parent, parent->engine, impl->instobj, &args,
 				   sizeof(args), pobject);
 }
 

drivers/gpu/drm/nouveau/core/subdev/instmem/nv04.c

@@ -31,21 +31,23 @@
 static u32
 nv04_instobj_rd32(struct nouveau_object *object, u64 addr)
 {
+	struct nv04_instmem_priv *priv = (void *)nouveau_instmem(object);
 	struct nv04_instobj_priv *node = (void *)object;
-	return nv_ro32(object->engine, node->mem->offset + addr);
+	return nv_ro32(priv, node->mem->offset + addr);
 }
 
 static void
 nv04_instobj_wr32(struct nouveau_object *object, u64 addr, u32 data)
 {
+	struct nv04_instmem_priv *priv = (void *)nouveau_instmem(object);
 	struct nv04_instobj_priv *node = (void *)object;
-	nv_wo32(object->engine, node->mem->offset + addr, data);
+	nv_wo32(priv, node->mem->offset + addr, data);
 }
 
 static void
 nv04_instobj_dtor(struct nouveau_object *object)
 {
-	struct nv04_instmem_priv *priv = (void *)object->engine;
+	struct nv04_instmem_priv *priv = (void *)nouveau_instmem(object);
 	struct nv04_instobj_priv *node = (void *)object;
 	nouveau_mm_free(&priv->heap, &node->mem);
 	nouveau_instobj_destroy(&node->base);
@@ -56,7 +58,7 @@ nv04_instobj_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 		  struct nouveau_oclass *oclass, void *data, u32 size,
 		  struct nouveau_object **pobject)
 {
-	struct nv04_instmem_priv *priv = (void *)engine;
+	struct nv04_instmem_priv *priv = (void *)nouveau_instmem(parent);
 	struct nv04_instobj_priv *node;
 	struct nouveau_instobj_args *args = data;
 	int ret;

drivers/gpu/drm/nouveau/core/subdev/instmem/nv50.c

@@ -45,7 +45,7 @@ struct nv50_instobj_priv {
 static u32
 nv50_instobj_rd32(struct nouveau_object *object, u64 offset)
 {
-	struct nv50_instmem_priv *priv = (void *)object->engine;
+	struct nv50_instmem_priv *priv = (void *)nouveau_instmem(object);
 	struct nv50_instobj_priv *node = (void *)object;
 	unsigned long flags;
 	u64 base = (node->mem->offset + offset) & 0xffffff00000ULL;
@@ -65,7 +65,7 @@ nv50_instobj_rd32(struct nouveau_object *object, u64 offset)
 static void
 nv50_instobj_wr32(struct nouveau_object *object, u64 offset, u32 data)
 {
-	struct nv50_instmem_priv *priv = (void *)object->engine;
+	struct nv50_instmem_priv *priv = (void *)nouveau_instmem(object);
 	struct nv50_instobj_priv *node = (void *)object;
 	unsigned long flags;
 	u64 base = (node->mem->offset + offset) & 0xffffff00000ULL;