drm/nvc0/dmaobj: stub bind function for now so we can call unconditionally

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

2 files changed, 26 insertions, 6 deletions

diff --git a/drivers/gpu/drm/nouveau/core/engine/dmaobj/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/dmaobj/nvc0.c
index 36de4491629..6fe20d21158 100644
--- a/drivers/gpu/drm/nouveau/core/engine/dmaobj/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/dmaobj/nvc0.c
@@ -23,7 +23,10 @@
  */
 
 #include <core/device.h>
+#include <core/gpuobj.h>
+#include <core/class.h>
 
+#include <subdev/fb.h>
 #include <engine/dmaobj.h>
 
 struct nvc0_dmaeng_priv {
@@ -31,6 +34,25 @@ struct nvc0_dmaeng_priv {
 };
 
 static int
+nvc0_dmaobj_bind(struct nouveau_dmaeng *dmaeng,
+                 struct nouveau_object *parent,
+                 struct nouveau_dmaobj *dmaobj,
+                 struct nouveau_gpuobj **pgpuobj)
+{
+        int ret = 0;
+
+        if (!nv_iclass(parent, NV_ENGCTX_CLASS)) {
+                switch (nv_mclass(parent->parent)) {
+                default:
+                        return -EINVAL;
+                }
+        } else
+                return 0;
+
+        return ret;
+}
+
+static int
 nvc0_dmaeng_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
                  struct nouveau_oclass *oclass, void *data, u32 size,
                  struct nouveau_object **pobject)
@@ -44,6 +66,7 @@ nvc0_dmaeng_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
                 return ret;
 
         nv_engine(priv)->sclass = nouveau_dmaobj_sclass;
+        priv->base.bind = nvc0_dmaobj_bind;
         return 0;
 }
 
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/base.c b/drivers/gpu/drm/nouveau/core/engine/fifo/base.c
index ca4050c6ea5..a7f41f8725c 100644
--- a/drivers/gpu/drm/nouveau/core/engine/fifo/base.c
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/base.c
@@ -64,12 +64,9 @@ nouveau_fifo_channel_create_(struct nouveau_object *parent,
                 return -EINVAL;
         }
 
-        if (dmaeng->bind) {
-                ret = dmaeng->bind(dmaeng, parent, chan->pushdma,
-                                  &chan->pushgpu);
-                if (ret)
-                        return ret;
-        }
+        ret = dmaeng->bind(dmaeng, parent, chan->pushdma, &chan->pushgpu);
+        if (ret)
+                return ret;
 
         /* find a free fifo channel */
         spin_lock_irqsave(&priv->lock, flags);