if (nv_iclass(handle->object, NV_GPUOBJ_CLASS)) {
                struct nouveau_gpuobj *gpuobj = nv_gpuobj(handle->object);
-               chan->base.vblank.ctxdma = gpuobj->node->offset >> 4;
+               chan->vblank.ctxdma = gpuobj->node->offset >> 4;
                ret = 0;
        }
        nouveau_namedb_put(handle);
                                 void *args, u32 size)
 {
        struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
-       chan->base.vblank.offset = *(u32 *)args;
+       chan->vblank.offset = *(u32 *)args;
        return 0;
 }
 
                                void *args, u32 size)
 {
        struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
-       chan->base.vblank.value = *(u32 *)args;
+       chan->vblank.value = *(u32 *)args;
        return 0;
 }
 
        if (crtc > 1)
                return -EINVAL;
 
-       nouveau_event_get(disp->vblank, crtc, &chan->base.vblank.event);
+       nouveau_event_get(disp->vblank, crtc, &chan->vblank.event);
        return 0;
 }
 
 static int
 nv50_software_vblsem_release(struct nouveau_eventh *event, int head)
 {
-       struct nouveau_software_chan *chan =
-               container_of(event, struct nouveau_software_chan, vblank.event);
+       struct nv50_software_chan *chan =
+               container_of(event, typeof(*chan), vblank.event);
        struct nv50_software_priv *priv = (void *)nv_object(chan)->engine;
        struct nouveau_bar *bar = nouveau_bar(priv);
 
        if (ret)
                return ret;
 
-       chan->base.vblank.channel = nv_gpuobj(parent->parent)->addr >> 12;
-       chan->base.vblank.event.func = nv50_software_vblsem_release;
+       chan->vblank.channel = nv_gpuobj(parent->parent)->addr >> 12;
+       chan->vblank.event.func = nv50_software_vblsem_release;
        return 0;
 }
 
 
 
 struct nv50_software_chan {
        struct nouveau_software_chan base;
+       struct {
+               struct nouveau_eventh event;
+               u32 channel;
+               u32 ctxdma;
+               u64 offset;
+               u32 value;
+       } vblank;
 };
 
 #endif
 
        struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
        u64 data = *(u32 *)args;
        if (mthd == 0x0400) {
-               chan->base.vblank.offset &= 0x00ffffffffULL;
-               chan->base.vblank.offset |= data << 32;
+               chan->vblank.offset &= 0x00ffffffffULL;
+               chan->vblank.offset |= data << 32;
        } else {
-               chan->base.vblank.offset &= 0xff00000000ULL;
-               chan->base.vblank.offset |= data;
+               chan->vblank.offset &= 0xff00000000ULL;
+               chan->vblank.offset |= data;
        }
        return 0;
 }
                                void *args, u32 size)
 {
        struct nv50_software_chan *chan = (void *)nv_engctx(object->parent);
-       chan->base.vblank.value = *(u32 *)args;
+       chan->vblank.value = *(u32 *)args;
        return 0;
 }
 
        if ((nv_device(object)->card_type < NV_E0 && crtc > 1) || crtc > 3)
                return -EINVAL;
 
-       nouveau_event_get(disp->vblank, crtc, &chan->base.vblank.event);
+       nouveau_event_get(disp->vblank, crtc, &chan->vblank.event);
        return 0;
 }
 
 static int
 nvc0_software_vblsem_release(struct nouveau_eventh *event, int head)
 {
-       struct nouveau_software_chan *chan =
-               container_of(event, struct nouveau_software_chan, vblank.event);
+       struct nv50_software_chan *chan =
+               container_of(event, typeof(*chan), vblank.event);
        struct nv50_software_priv *priv = (void *)nv_object(chan)->engine;
        struct nouveau_bar *bar = nouveau_bar(priv);
 
        if (ret)
                return ret;
 
-       chan->base.vblank.channel = nv_gpuobj(parent->parent)->addr >> 12;
-       chan->base.vblank.event.func = nvc0_software_vblsem_release;
+       chan->vblank.channel = nv_gpuobj(parent->parent)->addr >> 12;
+       chan->vblank.event.func = nvc0_software_vblsem_release;
        return 0;
 }
 
 
 
 #include <core/engine.h>
 #include <core/engctx.h>
-#include <core/event.h>
 
 struct nouveau_software_chan {
        struct nouveau_engctx base;
 
-       struct {
-               struct nouveau_eventh event;
-               u32 channel;
-               u32 ctxdma;
-               u64 offset;
-               u32 value;
-       } vblank;
-
        int (*flip)(void *);
        void *flip_data;
 };