drm/nouveau/device: have engine object initialised before creation

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

drivers/gpu/drm/nouveau/core/core/client.c

@@ -58,8 +58,9 @@ nouveau_client_create_(const char *name, u64 devname, const char *cfg,
 		return -ENODEV;
 
 	ret = nouveau_namedb_create_(NULL, NULL, &nouveau_client_oclass,
-				     NV_CLIENT_CLASS, nouveau_device_sclass,
-				     0, length, pobject);
+				     NV_CLIENT_CLASS, NULL,
+				     (1ULL << NVDEV_ENGINE_DEVICE),
+				     length, pobject);
 	client = *pobject;
 	if (ret)
 		return ret;

drivers/gpu/drm/nouveau/core/core/parent.c

@@ -24,6 +24,7 @@
 
 #include <core/object.h>
 #include <core/parent.h>
+#include <core/client.h>
 
 int
 nouveau_parent_sclass(struct nouveau_object *parent, u16 handle,
@@ -50,7 +51,12 @@ nouveau_parent_sclass(struct nouveau_object *parent, u16 handle,
 	while (mask) {
 		int i = ffsll(mask) - 1;
 
-		if ((engine = nouveau_engine(parent, i))) {
+		if (nv_iclass(parent, NV_CLIENT_CLASS))
+			engine = nv_engine(nv_client(parent)->device);
+		else
+			engine = nouveau_engine(parent, i);
+
+		if (engine) {
 			oclass = engine->sclass;
 			while (oclass->ofuncs) {
 				if ((oclass->handle & 0xffff) == handle) {

drivers/gpu/drm/nouveau/core/engine/device/base.c

@@ -413,7 +413,7 @@ nouveau_devobj_ofuncs = {
 /******************************************************************************
  * nouveau_device: engine functions
  *****************************************************************************/
-struct nouveau_oclass
+static struct nouveau_oclass
 nouveau_device_sclass[] = {
 	{ 0x0080, &nouveau_devobj_ofuncs },
 	{}
@@ -470,6 +470,7 @@ nouveau_device_create_(struct pci_dev *pdev, u64 name, const char *sname,
 	device->name = sname;
 
 	nv_subdev(device)->debug = nouveau_dbgopt(device->dbgopt, "DEVICE");
+	nv_engine(device)->sclass = nouveau_device_sclass;
 	list_add(&device->head, &nv_devices);
 done:
 	mutex_unlock(&nv_devices_mutex);

drivers/gpu/drm/nouveau/core/include/engine/device.h

@@ -18,7 +18,6 @@ int nv50_identify(struct nouveau_device *);
 int nvc0_identify(struct nouveau_device *);
 int nve0_identify(struct nouveau_device *);
 
-extern struct nouveau_oclass nouveau_device_sclass[];
 struct nouveau_device *nouveau_device_find(u64 name);
 
 #endif