drm/nouveau/dma: split user classes out from engine implementations

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

13 files changed, 1035 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/Kbuild b/drivers/gpu/drm/nouveau/nvkm/engine/dma/Kbuild
new file mode 100644
index 000000000000..bb3a0528b6b5
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/Kbuild
@@ -0,0 +1,11 @@
+nvkm-y += nvkm/engine/dma/base.o
+nvkm-y += nvkm/engine/dma/nv04.o
+nvkm-y += nvkm/engine/dma/nv50.o
+nvkm-y += nvkm/engine/dma/gf100.o
+nvkm-y += nvkm/engine/dma/gf110.o
+
+nvkm-y += nvkm/engine/dma/user.o
+nvkm-y += nvkm/engine/dma/usernv04.o
+nvkm-y += nvkm/engine/dma/usernv50.o
+nvkm-y += nvkm/engine/dma/usergf100.o
+nvkm-y += nvkm/engine/dma/usergf110.o
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/dma/base.c
new file mode 100644
index 000000000000..a48978d39843
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/base.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+
+#include <core/client.h>
+#include <core/gpuobj.h>
+
+struct hack {
+	struct nvkm_gpuobj object;
+	struct nvkm_gpuobj *parent;
+};
+
+static void
+dtor(struct nvkm_object *object)
+{
+	struct hack *hack = (void *)object;
+	nvkm_gpuobj_del(&hack->parent);
+	nvkm_object_destroy(&hack->object.object);
+}
+
+static struct nvkm_oclass
+hack = {
+	.handle = NV_GPUOBJ_CLASS,
+	.ofuncs = &(struct nvkm_ofuncs) {
+		.dtor = dtor,
+		.init = _nvkm_object_init,
+		.fini = _nvkm_object_fini,
+	},
+};
+
+static int
+nvkm_dmaobj_bind(struct nvkm_dmaobj *dmaobj, struct nvkm_gpuobj *pargpu,
+		 struct nvkm_gpuobj **pgpuobj)
+{
+	const struct nvkm_dma_impl *impl = (void *)
+		nv_oclass(nv_object(dmaobj)->engine);
+	int ret = 0;
+
+	if (&dmaobj->base == &pargpu->object) { /* ctor bind */
+		struct nvkm_object *parent = (void *)pargpu;
+		struct hack *object;
+
+		if (parent->parent->parent == &nvkm_client(parent)->object) {
+			/* delayed, or no, binding */
+			return 0;
+		}
+
+		pargpu = (void *)nv_pclass((void *)pargpu, NV_GPUOBJ_CLASS);
+
+		ret = nvkm_object_create(parent, NULL, &hack, NV_GPUOBJ_CLASS, &object);
+		if (ret == 0) {
+			nvkm_object_ref(NULL, &parent);
+			*pgpuobj = &object->object;
+
+			ret = impl->bind(dmaobj, pargpu, &object->parent);
+			if (ret)
+				return ret;
+
+			object->object.node = object->parent->node;
+			object->object.addr = object->parent->addr;
+			object->object.size = object->parent->size;
+			return 0;
+		}
+
+		return ret;
+	}
+
+	return impl->bind(dmaobj, pargpu, pgpuobj);
+}
+
+int
+_nvkm_dma_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+		  struct nvkm_oclass *oclass, void *data, u32 size,
+		  struct nvkm_object **pobject)
+{
+	const struct nvkm_dma_impl *impl = (void *)oclass;
+	struct nvkm_dma *dmaeng;
+	int ret;
+
+	ret = nvkm_engine_create(parent, engine, oclass, true, "DMAOBJ",
+				 "dmaobj", &dmaeng);
+	*pobject = nv_object(dmaeng);
+	if (ret)
+		return ret;
+
+	nv_engine(dmaeng)->sclass = impl->sclass;
+	dmaeng->bind = nvkm_dmaobj_bind;
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/gf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/dma/gf100.c
new file mode 100644
index 000000000000..cb5c6adb8048
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/gf100.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "user.h"
+
+struct nvkm_oclass *
+gf100_dmaeng_oclass = &(struct nvkm_dma_impl) {
+	.base.handle = NV_ENGINE(DMAOBJ, 0xc0),
+	.base.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = _nvkm_dma_ctor,
+		.dtor = _nvkm_dma_dtor,
+		.init = _nvkm_dma_init,
+		.fini = _nvkm_dma_fini,
+	},
+	.sclass = gf100_dmaeng_sclass,
+	.bind = gf100_dmaobj_bind,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/gf110.c b/drivers/gpu/drm/nouveau/nvkm/engine/dma/gf110.c
new file mode 100644
index 000000000000..9a93ec6924f9
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/gf110.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "user.h"
+
+struct nvkm_oclass *
+gf110_dmaeng_oclass = &(struct nvkm_dma_impl) {
+	.base.handle = NV_ENGINE(DMAOBJ, 0xd0),
+	.base.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = _nvkm_dma_ctor,
+		.dtor = _nvkm_dma_dtor,
+		.init = _nvkm_dma_init,
+		.fini = _nvkm_dma_fini,
+	},
+	.sclass = gf110_dmaeng_sclass,
+	.bind = gf110_dmaobj_bind,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/nv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/dma/nv04.c
new file mode 100644
index 000000000000..32bccdc57d2d
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/nv04.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "user.h"
+
+struct nvkm_oclass *
+nv04_dmaeng_oclass = &(struct nvkm_dma_impl) {
+	.base.handle = NV_ENGINE(DMAOBJ, 0x04),
+	.base.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = _nvkm_dma_ctor,
+		.dtor = _nvkm_dma_dtor,
+		.init = _nvkm_dma_init,
+		.fini = _nvkm_dma_fini,
+	},
+	.sclass = nv04_dmaeng_sclass,
+	.bind = nv04_dmaobj_bind,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/nv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/dma/nv50.c
new file mode 100644
index 000000000000..20346d635c9c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/nv50.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "user.h"
+
+struct nvkm_oclass *
+nv50_dmaeng_oclass = &(struct nvkm_dma_impl) {
+	.base.handle = NV_ENGINE(DMAOBJ, 0x50),
+	.base.ofuncs = &(struct nvkm_ofuncs) {
+		.ctor = _nvkm_dma_ctor,
+		.dtor = _nvkm_dma_dtor,
+		.init = _nvkm_dma_init,
+		.fini = _nvkm_dma_fini,
+	},
+	.sclass = nv50_dmaeng_sclass,
+	.bind = nv50_dmaobj_bind,
+}.base;
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/dma/priv.h
new file mode 100644
index 000000000000..fb2f7eced0cf
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/priv.h
@@ -0,0 +1,18 @@
+#ifndef __NVKM_DMA_PRIV_H__
+#define __NVKM_DMA_PRIV_H__
+#include <engine/dma.h>
+
+int _nvkm_dma_ctor(struct nvkm_object *, struct nvkm_object *,
+		      struct nvkm_oclass *, void *, u32,
+		      struct nvkm_object **);
+#define _nvkm_dma_dtor _nvkm_engine_dtor
+#define _nvkm_dma_init _nvkm_engine_init
+#define _nvkm_dma_fini _nvkm_engine_fini
+
+struct nvkm_dma_impl {
+	struct nvkm_oclass base;
+	struct nvkm_oclass *sclass;
+	int (*bind)(struct nvkm_dmaobj *, struct nvkm_gpuobj *,
+		    struct nvkm_gpuobj **);
+};
+#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/user.c b/drivers/gpu/drm/nouveau/nvkm/engine/dma/user.c
new file mode 100644
index 000000000000..11571dbd9e91
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/user.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "user.h"
+
+#include <core/client.h>
+#include <subdev/fb.h>
+#include <subdev/instmem.h>
+
+#include <nvif/class.h>
+#include <nvif/unpack.h>
+
+int
+nvkm_dmaobj_create_(struct nvkm_object *parent,
+		    struct nvkm_object *engine,
+		    struct nvkm_oclass *oclass, void **pdata, u32 *psize,
+		    int length, void **pobject)
+{
+	union {
+		struct nv_dma_v0 v0;
+	} *args = *pdata;
+	struct nvkm_instmem *instmem = nvkm_instmem(parent);
+	struct nvkm_client *client = nvkm_client(parent);
+	struct nvkm_device *device = nv_device(parent);
+	struct nvkm_fb *fb = nvkm_fb(parent);
+	struct nvkm_dmaobj *dmaobj;
+	void *data = *pdata;
+	u32 size = *psize;
+	int ret;
+
+	ret = nvkm_object_create_(parent, engine, oclass, 0, length, pobject);
+	dmaobj = *pobject;
+	if (ret)
+		return ret;
+
+	nvif_ioctl(parent, "create dma size %d\n", *psize);
+	if (nvif_unpack(args->v0, 0, 0, true)) {
+		nvif_ioctl(parent, "create dma vers %d target %d access %d "
+				   "start %016llx limit %016llx\n",
+			   args->v0.version, args->v0.target, args->v0.access,
+			   args->v0.start, args->v0.limit);
+		dmaobj->target = args->v0.target;
+		dmaobj->access = args->v0.access;
+		dmaobj->start  = args->v0.start;
+		dmaobj->limit  = args->v0.limit;
+	} else
+		return ret;
+
+	*pdata = data;
+	*psize = size;
+
+	if (dmaobj->start > dmaobj->limit)
+		return -EINVAL;
+
+	switch (dmaobj->target) {
+	case NV_DMA_V0_TARGET_VM:
+		dmaobj->target = NV_MEM_TARGET_VM;
+		break;
+	case NV_DMA_V0_TARGET_VRAM:
+		if (!client->super) {
+			if (dmaobj->limit >= fb->ram->size - instmem->reserved)
+				return -EACCES;
+			if (device->card_type >= NV_50)
+				return -EACCES;
+		}
+		dmaobj->target = NV_MEM_TARGET_VRAM;
+		break;
+	case NV_DMA_V0_TARGET_PCI:
+		if (!client->super)
+			return -EACCES;
+		dmaobj->target = NV_MEM_TARGET_PCI;
+		break;
+	case NV_DMA_V0_TARGET_PCI_US:
+	case NV_DMA_V0_TARGET_AGP:
+		if (!client->super)
+			return -EACCES;
+		dmaobj->target = NV_MEM_TARGET_PCI_NOSNOOP;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (dmaobj->access) {
+	case NV_DMA_V0_ACCESS_VM:
+		dmaobj->access = NV_MEM_ACCESS_VM;
+		break;
+	case NV_DMA_V0_ACCESS_RD:
+		dmaobj->access = NV_MEM_ACCESS_RO;
+		break;
+	case NV_DMA_V0_ACCESS_WR:
+		dmaobj->access = NV_MEM_ACCESS_WO;
+		break;
+	case NV_DMA_V0_ACCESS_RDWR:
+		dmaobj->access = NV_MEM_ACCESS_RW;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return ret;
+}
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/user.h b/drivers/gpu/drm/nouveau/nvkm/engine/dma/user.h
new file mode 100644
index 000000000000..83dc1d621e3d
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/user.h
@@ -0,0 +1,29 @@
+#ifndef __NVKM_DMA_USER_H__
+#define __NVKM_DMA_USER_H__
+#include "priv.h"
+
+#define nvkm_dmaobj_create(p,e,c,pa,sa,d)                                      \
+	nvkm_dmaobj_create_((p), (e), (c), (pa), (sa), sizeof(**d), (void **)d)
+
+int nvkm_dmaobj_create_(struct nvkm_object *, struct nvkm_object *,
+			struct nvkm_oclass *, void **, u32 *,
+			int, void **);
+#define _nvkm_dmaobj_dtor nvkm_object_destroy
+#define _nvkm_dmaobj_init _nvkm_object_init
+#define _nvkm_dmaobj_fini _nvkm_object_fini
+
+extern struct nvkm_oclass nv04_dmaeng_sclass[];
+extern struct nvkm_oclass nv50_dmaeng_sclass[];
+extern struct nvkm_oclass gf100_dmaeng_sclass[];
+extern struct nvkm_oclass gf110_dmaeng_sclass[];
+
+int nv04_dmaobj_bind(struct nvkm_dmaobj *, struct nvkm_gpuobj *,
+		     struct nvkm_gpuobj **);
+int nv50_dmaobj_bind(struct nvkm_dmaobj *, struct nvkm_gpuobj *,
+		     struct nvkm_gpuobj **);
+int gf100_dmaobj_bind(struct nvkm_dmaobj *, struct nvkm_gpuobj *,
+		      struct nvkm_gpuobj **);
+int gf110_dmaobj_bind(struct nvkm_dmaobj *, struct nvkm_gpuobj *,
+		      struct nvkm_gpuobj **);
+
+#endif
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/usergf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/dma/usergf100.c
new file mode 100644
index 000000000000..3f2d7d93f026
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/usergf100.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "user.h"
+
+#include <core/client.h>
+#include <core/gpuobj.h>
+#include <subdev/fb.h>
+
+#include <nvif/class.h>
+#include <nvif/unpack.h>
+
+struct gf100_dmaobj {
+	struct nvkm_dmaobj base;
+	u32 flags0;
+	u32 flags5;
+};
+
+int
+gf100_dmaobj_bind(struct nvkm_dmaobj *obj, struct nvkm_gpuobj *parent,
+		  struct nvkm_gpuobj **pgpuobj)
+{
+	struct gf100_dmaobj *dmaobj = container_of(obj, typeof(*dmaobj), base);
+	struct nvkm_device *device = dmaobj->base.base.engine->subdev.device;
+	int ret;
+
+	ret = nvkm_gpuobj_new(device, 24, 32, false, parent, pgpuobj);
+	if (ret == 0) {
+		nvkm_kmap(*pgpuobj);
+		nvkm_wo32(*pgpuobj, 0x00, dmaobj->flags0 | nv_mclass(dmaobj));
+		nvkm_wo32(*pgpuobj, 0x04, lower_32_bits(dmaobj->base.limit));
+		nvkm_wo32(*pgpuobj, 0x08, lower_32_bits(dmaobj->base.start));
+		nvkm_wo32(*pgpuobj, 0x0c, upper_32_bits(dmaobj->base.limit) << 24 |
+					  upper_32_bits(dmaobj->base.start));
+		nvkm_wo32(*pgpuobj, 0x10, 0x00000000);
+		nvkm_wo32(*pgpuobj, 0x14, dmaobj->flags5);
+		nvkm_done(*pgpuobj);
+	}
+
+	return ret;
+}
+
+static int
+gf100_dmaobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+		  struct nvkm_oclass *oclass, void *data, u32 size,
+		  struct nvkm_object **pobject)
+{
+	struct nvkm_dma *dmaeng = (void *)engine;
+	union {
+		struct gf100_dma_v0 v0;
+	} *args;
+	struct gf100_dmaobj *dmaobj;
+	u32 kind, user, unkn;
+	int ret;
+
+	ret = nvkm_dmaobj_create(parent, engine, oclass, &data, &size, &dmaobj);
+	*pobject = nv_object(dmaobj);
+	if (ret)
+		return ret;
+	args = data;
+
+	nvif_ioctl(parent, "create gf100 dma size %d\n", size);
+	if (nvif_unpack(args->v0, 0, 0, false)) {
+		nvif_ioctl(parent,
+			   "create gf100 dma vers %d priv %d kind %02x\n",
+			   args->v0.version, args->v0.priv, args->v0.kind);
+		kind = args->v0.kind;
+		user = args->v0.priv;
+		unkn = 0;
+	} else
+	if (size == 0) {
+		if (dmaobj->base.target != NV_MEM_TARGET_VM) {
+			kind = GF100_DMA_V0_KIND_PITCH;
+			user = GF100_DMA_V0_PRIV_US;
+			unkn = 2;
+		} else {
+			kind = GF100_DMA_V0_KIND_VM;
+			user = GF100_DMA_V0_PRIV_VM;
+			unkn = 0;
+		}
+	} else
+		return ret;
+
+	if (user > 2)
+		return -EINVAL;
+	dmaobj->flags0 |= (kind << 22) | (user << 20);
+	dmaobj->flags5 |= (unkn << 16);
+
+	switch (dmaobj->base.target) {
+	case NV_MEM_TARGET_VM:
+		dmaobj->flags0 |= 0x00000000;
+		break;
+	case NV_MEM_TARGET_VRAM:
+		dmaobj->flags0 |= 0x00010000;
+		break;
+	case NV_MEM_TARGET_PCI:
+		dmaobj->flags0 |= 0x00020000;
+		break;
+	case NV_MEM_TARGET_PCI_NOSNOOP:
+		dmaobj->flags0 |= 0x00030000;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (dmaobj->base.access) {
+	case NV_MEM_ACCESS_VM:
+		break;
+	case NV_MEM_ACCESS_RO:
+		dmaobj->flags0 |= 0x00040000;
+		break;
+	case NV_MEM_ACCESS_WO:
+	case NV_MEM_ACCESS_RW:
+		dmaobj->flags0 |= 0x00080000;
+		break;
+	}
+
+	return dmaeng->bind(&dmaobj->base, (void *)dmaobj, (void *)pobject);
+}
+
+static struct nvkm_ofuncs
+gf100_dmaobj_ofuncs = {
+	.ctor =  gf100_dmaobj_ctor,
+	.dtor = _nvkm_dmaobj_dtor,
+	.init = _nvkm_dmaobj_init,
+	.fini = _nvkm_dmaobj_fini,
+};
+
+struct nvkm_oclass
+gf100_dmaeng_sclass[] = {
+	{ NV_DMA_FROM_MEMORY, &gf100_dmaobj_ofuncs },
+	{ NV_DMA_TO_MEMORY, &gf100_dmaobj_ofuncs },
+	{ NV_DMA_IN_MEMORY, &gf100_dmaobj_ofuncs },
+	{}
+};
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/usergf110.c b/drivers/gpu/drm/nouveau/nvkm/engine/dma/usergf110.c
new file mode 100644
index 000000000000..db22a8b2033c
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/usergf110.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "user.h"
+
+#include <core/client.h>
+#include <core/gpuobj.h>
+#include <subdev/fb.h>
+
+#include <nvif/class.h>
+#include <nvif/unpack.h>
+
+struct gf110_dmaobj {
+	struct nvkm_dmaobj base;
+	u32 flags0;
+};
+
+int
+gf110_dmaobj_bind(struct nvkm_dmaobj *obj, struct nvkm_gpuobj *parent,
+		  struct nvkm_gpuobj **pgpuobj)
+{
+	struct gf110_dmaobj *dmaobj = container_of(obj, typeof(*dmaobj), base);
+	struct nvkm_device *device = dmaobj->base.base.engine->subdev.device;
+	int ret;
+
+	ret = nvkm_gpuobj_new(device, 24, 32, false, parent, pgpuobj);
+	if (ret == 0) {
+		nvkm_kmap(*pgpuobj);
+		nvkm_wo32(*pgpuobj, 0x00, dmaobj->flags0);
+		nvkm_wo32(*pgpuobj, 0x04, dmaobj->base.start >> 8);
+		nvkm_wo32(*pgpuobj, 0x08, dmaobj->base.limit >> 8);
+		nvkm_wo32(*pgpuobj, 0x0c, 0x00000000);
+		nvkm_wo32(*pgpuobj, 0x10, 0x00000000);
+		nvkm_wo32(*pgpuobj, 0x14, 0x00000000);
+		nvkm_done(*pgpuobj);
+	}
+
+	return ret;
+}
+
+static int
+gf110_dmaobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+		  struct nvkm_oclass *oclass, void *data, u32 size,
+		  struct nvkm_object **pobject)
+{
+	struct nvkm_dma *dmaeng = (void *)engine;
+	union {
+		struct gf110_dma_v0 v0;
+	} *args;
+	struct gf110_dmaobj *dmaobj;
+	u32 kind, page;
+	int ret;
+
+	ret = nvkm_dmaobj_create(parent, engine, oclass, &data, &size, &dmaobj);
+	*pobject = nv_object(dmaobj);
+	if (ret)
+		return ret;
+	args = data;
+
+	nvif_ioctl(parent, "create gf110 dma size %d\n", size);
+	if (nvif_unpack(args->v0, 0, 0, false)) {
+		nvif_ioctl(parent,
+			   "create gf100 dma vers %d page %d kind %02x\n",
+			   args->v0.version, args->v0.page, args->v0.kind);
+		kind = args->v0.kind;
+		page = args->v0.page;
+	} else
+	if (size == 0) {
+		if (dmaobj->base.target != NV_MEM_TARGET_VM) {
+			kind = GF110_DMA_V0_KIND_PITCH;
+			page = GF110_DMA_V0_PAGE_SP;
+		} else {
+			kind = GF110_DMA_V0_KIND_VM;
+			page = GF110_DMA_V0_PAGE_LP;
+		}
+	} else
+		return ret;
+
+	if (page > 1)
+		return -EINVAL;
+	dmaobj->flags0 = (kind << 20) | (page << 6);
+
+	switch (dmaobj->base.target) {
+	case NV_MEM_TARGET_VRAM:
+		dmaobj->flags0 |= 0x00000009;
+		break;
+	case NV_MEM_TARGET_VM:
+	case NV_MEM_TARGET_PCI:
+	case NV_MEM_TARGET_PCI_NOSNOOP:
+		/* XXX: don't currently know how to construct a real one
+		 *      of these.  we only use them to represent pushbufs
+		 *      on these chipsets, and the classes that use them
+		 *      deal with the target themselves.
+		 */
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return dmaeng->bind(&dmaobj->base, (void *)dmaobj, (void *)pobject);
+}
+
+static struct nvkm_ofuncs
+gf110_dmaobj_ofuncs = {
+	.ctor =  gf110_dmaobj_ctor,
+	.dtor = _nvkm_dmaobj_dtor,
+	.init = _nvkm_dmaobj_init,
+	.fini = _nvkm_dmaobj_fini,
+};
+
+struct nvkm_oclass
+gf110_dmaeng_sclass[] = {
+	{ NV_DMA_FROM_MEMORY, &gf110_dmaobj_ofuncs },
+	{ NV_DMA_TO_MEMORY, &gf110_dmaobj_ofuncs },
+	{ NV_DMA_IN_MEMORY, &gf110_dmaobj_ofuncs },
+	{}
+};
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv04.c
new file mode 100644
index 000000000000..bd8ca8ec09b6
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv04.c
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "user.h"
+
+#include <core/gpuobj.h>
+#include <subdev/fb.h>
+#include <subdev/mmu/nv04.h>
+
+#include <nvif/class.h>
+
+struct nv04_dmaobj {
+	struct nvkm_dmaobj base;
+	bool clone;
+	u32 flags0;
+	u32 flags2;
+};
+
+int
+nv04_dmaobj_bind(struct nvkm_dmaobj *obj, struct nvkm_gpuobj *parent,
+		 struct nvkm_gpuobj **pgpuobj)
+{
+	struct nv04_dmaobj *dmaobj = container_of(obj, typeof(*dmaobj), base);
+	struct nvkm_device *device = dmaobj->base.base.engine->subdev.device;
+	u64 offset = dmaobj->base.start & 0xfffff000;
+	u64 adjust = dmaobj->base.start & 0x00000fff;
+	u32 length = dmaobj->base.limit - dmaobj->base.start;
+	int ret;
+
+	if (dmaobj->clone) {
+		struct nv04_mmu *mmu = nv04_mmu(dmaobj);
+		struct nvkm_memory *pgt = mmu->vm->pgt[0].mem[0];
+		if (!dmaobj->base.start)
+			return nvkm_gpuobj_wrap(pgt, pgpuobj);
+		nvkm_kmap(pgt);
+		offset  = nvkm_ro32(pgt, 8 + (offset >> 10));
+		offset &= 0xfffff000;
+		nvkm_done(pgt);
+	}
+
+	ret = nvkm_gpuobj_new(device, 16, 16, false, parent, pgpuobj);
+	if (ret == 0) {
+		nvkm_kmap(*pgpuobj);
+		nvkm_wo32(*pgpuobj, 0x00, dmaobj->flags0 | (adjust << 20));
+		nvkm_wo32(*pgpuobj, 0x04, length);
+		nvkm_wo32(*pgpuobj, 0x08, dmaobj->flags2 | offset);
+		nvkm_wo32(*pgpuobj, 0x0c, dmaobj->flags2 | offset);
+		nvkm_done(*pgpuobj);
+	}
+
+	return ret;
+}
+
+static int
+nv04_dmaobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+		 struct nvkm_oclass *oclass, void *data, u32 size,
+		 struct nvkm_object **pobject)
+{
+	struct nvkm_dma *dmaeng = (void *)engine;
+	struct nv04_mmu *mmu = nv04_mmu(engine);
+	struct nv04_dmaobj *dmaobj;
+	int ret;
+
+	ret = nvkm_dmaobj_create(parent, engine, oclass, &data, &size, &dmaobj);
+	*pobject = nv_object(dmaobj);
+	if (ret || (ret = -ENOSYS, size))
+		return ret;
+
+	if (dmaobj->base.target == NV_MEM_TARGET_VM) {
+		if (nv_object(mmu)->oclass == &nv04_mmu_oclass)
+			dmaobj->clone = true;
+		dmaobj->base.target = NV_MEM_TARGET_PCI;
+		dmaobj->base.access = NV_MEM_ACCESS_RW;
+	}
+
+	dmaobj->flags0 = nv_mclass(dmaobj);
+	switch (dmaobj->base.target) {
+	case NV_MEM_TARGET_VRAM:
+		dmaobj->flags0 |= 0x00003000;
+		break;
+	case NV_MEM_TARGET_PCI:
+		dmaobj->flags0 |= 0x00023000;
+		break;
+	case NV_MEM_TARGET_PCI_NOSNOOP:
+		dmaobj->flags0 |= 0x00033000;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (dmaobj->base.access) {
+	case NV_MEM_ACCESS_RO:
+		dmaobj->flags0 |= 0x00004000;
+		break;
+	case NV_MEM_ACCESS_WO:
+		dmaobj->flags0 |= 0x00008000;
+	case NV_MEM_ACCESS_RW:
+		dmaobj->flags2 |= 0x00000002;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return dmaeng->bind(&dmaobj->base, (void *)dmaobj, (void *)pobject);
+}
+
+static struct nvkm_ofuncs
+nv04_dmaobj_ofuncs = {
+	.ctor =  nv04_dmaobj_ctor,
+	.dtor = _nvkm_dmaobj_dtor,
+	.init = _nvkm_dmaobj_init,
+	.fini = _nvkm_dmaobj_fini,
+};
+
+struct nvkm_oclass
+nv04_dmaeng_sclass[] = {
+	{ NV_DMA_FROM_MEMORY, &nv04_dmaobj_ofuncs },
+	{ NV_DMA_TO_MEMORY, &nv04_dmaobj_ofuncs },
+	{ NV_DMA_IN_MEMORY, &nv04_dmaobj_ofuncs },
+	{}
+};
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv50.c
new file mode 100644
index 000000000000..fd99b1e15143
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/usernv50.c
@@ -0,0 +1,161 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "user.h"
+
+#include <core/client.h>
+#include <core/gpuobj.h>
+#include <subdev/fb.h>
+
+#include <nvif/class.h>
+#include <nvif/unpack.h>
+
+struct nv50_dmaobj {
+	struct nvkm_dmaobj base;
+	u32 flags0;
+	u32 flags5;
+};
+
+int
+nv50_dmaobj_bind(struct nvkm_dmaobj *obj, struct nvkm_gpuobj *parent,
+		 struct nvkm_gpuobj **pgpuobj)
+{
+	struct nv50_dmaobj *dmaobj = container_of(obj, typeof(*dmaobj), base);
+	struct nvkm_device *device = dmaobj->base.base.engine->subdev.device;
+	int ret;
+
+	ret = nvkm_gpuobj_new(device, 24, 32, false, parent, pgpuobj);
+	if (ret == 0) {
+		nvkm_kmap(*pgpuobj);
+		nvkm_wo32(*pgpuobj, 0x00, dmaobj->flags0 | nv_mclass(dmaobj));
+		nvkm_wo32(*pgpuobj, 0x04, lower_32_bits(dmaobj->base.limit));
+		nvkm_wo32(*pgpuobj, 0x08, lower_32_bits(dmaobj->base.start));
+		nvkm_wo32(*pgpuobj, 0x0c, upper_32_bits(dmaobj->base.limit) << 24 |
+					  upper_32_bits(dmaobj->base.start));
+		nvkm_wo32(*pgpuobj, 0x10, 0x00000000);
+		nvkm_wo32(*pgpuobj, 0x14, dmaobj->flags5);
+		nvkm_done(*pgpuobj);
+	}
+
+	return ret;
+}
+
+static int
+nv50_dmaobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+		 struct nvkm_oclass *oclass, void *data, u32 size,
+		 struct nvkm_object **pobject)
+{
+	struct nvkm_dma *dmaeng = (void *)engine;
+	union {
+		struct nv50_dma_v0 v0;
+	} *args;
+	struct nv50_dmaobj *dmaobj;
+	u32 user, part, comp, kind;
+	int ret;
+
+	ret = nvkm_dmaobj_create(parent, engine, oclass, &data, &size, &dmaobj);
+	*pobject = nv_object(dmaobj);
+	if (ret)
+		return ret;
+	args = data;
+
+	nvif_ioctl(parent, "create nv50 dma size %d\n", size);
+	if (nvif_unpack(args->v0, 0, 0, false)) {
+		nvif_ioctl(parent, "create nv50 dma vers %d priv %d part %d "
+				   "comp %d kind %02x\n", args->v0.version,
+			   args->v0.priv, args->v0.part, args->v0.comp,
+			   args->v0.kind);
+		user = args->v0.priv;
+		part = args->v0.part;
+		comp = args->v0.comp;
+		kind = args->v0.kind;
+	} else
+	if (size == 0) {
+		if (dmaobj->base.target != NV_MEM_TARGET_VM) {
+			user = NV50_DMA_V0_PRIV_US;
+			part = NV50_DMA_V0_PART_256;
+			comp = NV50_DMA_V0_COMP_NONE;
+			kind = NV50_DMA_V0_KIND_PITCH;
+		} else {
+			user = NV50_DMA_V0_PRIV_VM;
+			part = NV50_DMA_V0_PART_VM;
+			comp = NV50_DMA_V0_COMP_VM;
+			kind = NV50_DMA_V0_KIND_VM;
+		}
+	} else
+		return ret;
+
+	if (user > 2 || part > 2 || comp > 3 || kind > 0x7f)
+		return -EINVAL;
+	dmaobj->flags0 = (comp << 29) | (kind << 22) | (user << 20);
+	dmaobj->flags5 = (part << 16);
+
+	switch (dmaobj->base.target) {
+	case NV_MEM_TARGET_VM:
+		dmaobj->flags0 |= 0x00000000;
+		break;
+	case NV_MEM_TARGET_VRAM:
+		dmaobj->flags0 |= 0x00010000;
+		break;
+	case NV_MEM_TARGET_PCI:
+		dmaobj->flags0 |= 0x00020000;
+		break;
+	case NV_MEM_TARGET_PCI_NOSNOOP:
+		dmaobj->flags0 |= 0x00030000;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (dmaobj->base.access) {
+	case NV_MEM_ACCESS_VM:
+		break;
+	case NV_MEM_ACCESS_RO:
+		dmaobj->flags0 |= 0x00040000;
+		break;
+	case NV_MEM_ACCESS_WO:
+	case NV_MEM_ACCESS_RW:
+		dmaobj->flags0 |= 0x00080000;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return dmaeng->bind(&dmaobj->base, (void *)dmaobj, (void *)pobject);
+}
+
+static struct nvkm_ofuncs
+nv50_dmaobj_ofuncs = {
+	.ctor =  nv50_dmaobj_ctor,
+	.dtor = _nvkm_dmaobj_dtor,
+	.init = _nvkm_dmaobj_init,
+	.fini = _nvkm_dmaobj_fini,
+};
+
+struct nvkm_oclass
+nv50_dmaeng_sclass[] = {
+	{ NV_DMA_FROM_MEMORY, &nv50_dmaobj_ofuncs },
+	{ NV_DMA_TO_MEMORY, &nv50_dmaobj_ofuncs },
+	{ NV_DMA_IN_MEMORY, &nv50_dmaobj_ofuncs },
+	{}
+};