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

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

1 files changed, 4 insertions, 1257 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
index 36241cf9173e..240a5438c7ac 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.c
@@ -22,1265 +22,16 @@
  * Authors: Ben Skeggs
  */
 #include "nv50.h"
-#include "outp.h"
-#include "outpdp.h"
+#include "rootnv50.h"
 
 #include <core/client.h>
-#include <core/gpuobj.h>
 #include <core/enum.h>
-#include <core/handle.h>
-#include <core/ramht.h>
-#include <engine/dma.h>
+#include <core/gpuobj.h>
 #include <subdev/bios.h>
-#include <subdev/bios/dcb.h>
 #include <subdev/bios/disp.h>
 #include <subdev/bios/init.h>
 #include <subdev/bios/pll.h>
 #include <subdev/devinit.h>
-#include <subdev/fb.h>
-#include <subdev/timer.h>
-
-#include <nvif/class.h>
-#include <nvif/event.h>
-#include <nvif/unpack.h>
-
-/*******************************************************************************
- * EVO channel base class
- ******************************************************************************/
-
-static int
-nv50_disp_chan_create_(struct nvkm_object *parent,
-		       struct nvkm_object *engine,
-		       struct nvkm_oclass *oclass, int head,
-		       int length, void **pobject)
-{
-	const struct nv50_disp_chan_impl *impl = (void *)oclass->ofuncs;
-	struct nv50_disp_base *base = (void *)parent;
-	struct nv50_disp_chan *chan;
-	int chid = impl->chid + head;
-	int ret;
-
-	if (base->chan & (1 << chid))
-		return -EBUSY;
-	base->chan |= (1 << chid);
-
-	ret = nvkm_namedb_create_(parent, engine, oclass, 0, NULL,
-				  (1ULL << NVDEV_ENGINE_DMAOBJ),
-				  length, pobject);
-	chan = *pobject;
-	if (ret)
-		return ret;
-	chan->chid = chid;
-
-	nv_parent(chan)->object_attach = impl->attach;
-	nv_parent(chan)->object_detach = impl->detach;
-	return 0;
-}
-
-static void
-nv50_disp_chan_destroy(struct nv50_disp_chan *chan)
-{
-	struct nv50_disp_base *base = (void *)nv_object(chan)->parent;
-	base->chan &= ~(1 << chan->chid);
-	nvkm_namedb_destroy(&chan->base);
-}
-
-static void
-nv50_disp_chan_uevent_fini(struct nvkm_event *event, int type, int index)
-{
-	struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
-	struct nvkm_device *device = disp->base.engine.subdev.device;
-	nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000000 << index);
-	nvkm_wr32(device, 0x610020, 0x00000001 << index);
-}
-
-static void
-nv50_disp_chan_uevent_init(struct nvkm_event *event, int types, int index)
-{
-	struct nv50_disp *disp = container_of(event, typeof(*disp), uevent);
-	struct nvkm_device *device = disp->base.engine.subdev.device;
-	nvkm_wr32(device, 0x610020, 0x00000001 << index);
-	nvkm_mask(device, 0x610028, 0x00000001 << index, 0x00000001 << index);
-}
-
-void
-nv50_disp_chan_uevent_send(struct nv50_disp *disp, int chid)
-{
-	struct nvif_notify_uevent_rep {
-	} rep;
-
-	nvkm_event_send(&disp->uevent, 1, chid, &rep, sizeof(rep));
-}
-
-int
-nv50_disp_chan_uevent_ctor(struct nvkm_object *object, void *data, u32 size,
-			   struct nvkm_notify *notify)
-{
-	struct nv50_disp_dmac *dmac = (void *)object;
-	union {
-		struct nvif_notify_uevent_req none;
-	} *args = data;
-	int ret;
-
-	if (nvif_unvers(args->none)) {
-		notify->size  = sizeof(struct nvif_notify_uevent_rep);
-		notify->types = 1;
-		notify->index = dmac->base.chid;
-		return 0;
-	}
-
-	return ret;
-}
-
-const struct nvkm_event_func
-nv50_disp_chan_uevent = {
-	.ctor = nv50_disp_chan_uevent_ctor,
-	.init = nv50_disp_chan_uevent_init,
-	.fini = nv50_disp_chan_uevent_fini,
-};
-
-int
-nv50_disp_chan_ntfy(struct nvkm_object *object, u32 type,
-		    struct nvkm_event **pevent)
-{
-	struct nv50_disp *disp = (void *)object->engine;
-	switch (type) {
-	case NV50_DISP_CORE_CHANNEL_DMA_V0_NTFY_UEVENT:
-		*pevent = &disp->uevent;
-		return 0;
-	default:
-		break;
-	}
-	return -EINVAL;
-}
-
-int
-nv50_disp_chan_map(struct nvkm_object *object, u64 *addr, u32 *size)
-{
-	struct nv50_disp_chan *chan = (void *)object;
-	*addr = nv_device_resource_start(nv_device(object), 0) +
-		0x640000 + (chan->chid * 0x1000);
-	*size = 0x001000;
-	return 0;
-}
-
-u32
-nv50_disp_chan_rd32(struct nvkm_object *object, u64 addr)
-{
-	struct nv50_disp_chan *chan = (void *)object;
-	struct nvkm_device *device = object->engine->subdev.device;
-	return nvkm_rd32(device, 0x640000 + (chan->chid * 0x1000) + addr);
-}
-
-void
-nv50_disp_chan_wr32(struct nvkm_object *object, u64 addr, u32 data)
-{
-	struct nv50_disp_chan *chan = (void *)object;
-	struct nvkm_device *device = object->engine->subdev.device;
-	nvkm_wr32(device, 0x640000 + (chan->chid * 0x1000) + addr, data);
-}
-
-/*******************************************************************************
- * EVO DMA channel base class
- ******************************************************************************/
-
-static int
-nv50_disp_dmac_object_attach(struct nvkm_object *parent,
-			     struct nvkm_object *object, u32 name)
-{
-	struct nv50_disp_base *base = (void *)parent->parent;
-	struct nv50_disp_chan *chan = (void *)parent;
-	u32 addr = nv_gpuobj(object)->node->offset;
-	u32 chid = chan->chid;
-	u32 data = (chid << 28) | (addr << 10) | chid;
-	return nvkm_ramht_insert(base->ramht, NULL, chid, 0, name, data);
-}
-
-static void
-nv50_disp_dmac_object_detach(struct nvkm_object *parent, int cookie)
-{
-	struct nv50_disp_base *base = (void *)parent->parent;
-	nvkm_ramht_remove(base->ramht, cookie);
-}
-
-static int
-nv50_disp_dmac_create_(struct nvkm_object *parent,
-		       struct nvkm_object *engine,
-		       struct nvkm_oclass *oclass, u64 pushbuf, int head,
-		       int length, void **pobject)
-{
-	struct nvkm_device *device = parent->engine->subdev.device;
-	struct nvkm_client *client = nvkm_client(parent);
-	struct nvkm_dma *dma = device->dma;
-	struct nvkm_dmaobj *dmaobj;
-	struct nv50_disp_dmac *dmac;
-	int ret;
-
-	ret = nv50_disp_chan_create_(parent, engine, oclass, head,
-				     length, pobject);
-	dmac = *pobject;
-	if (ret)
-		return ret;
-
-	dmaobj = nvkm_dma_search(dma, client, pushbuf);
-	if (!dmaobj)
-		return -ENOENT;
-
-	if (dmaobj->limit - dmaobj->start != 0xfff)
-		return -EINVAL;
-
-	switch (dmaobj->target) {
-	case NV_MEM_TARGET_VRAM:
-		dmac->push = 0x00000001 | dmaobj->start >> 8;
-		break;
-	case NV_MEM_TARGET_PCI_NOSNOOP:
-		dmac->push = 0x00000003 | dmaobj->start >> 8;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-void
-nv50_disp_dmac_dtor(struct nvkm_object *object)
-{
-	struct nv50_disp_dmac *dmac = (void *)object;
-	nv50_disp_chan_destroy(&dmac->base);
-}
-
-static int
-nv50_disp_dmac_init(struct nvkm_object *object)
-{
-	struct nv50_disp *disp = (void *)object->engine;
-	struct nv50_disp_dmac *dmac = (void *)object;
-	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
-	struct nvkm_device *device = subdev->device;
-	int chid = dmac->base.chid;
-	int ret;
-
-	ret = nv50_disp_chan_init(&dmac->base);
-	if (ret)
-		return ret;
-
-	/* enable error reporting */
-	nvkm_mask(device, 0x610028, 0x00010000 << chid, 0x00010000 << chid);
-
-	/* initialise channel for dma command submission */
-	nvkm_wr32(device, 0x610204 + (chid * 0x0010), dmac->push);
-	nvkm_wr32(device, 0x610208 + (chid * 0x0010), 0x00010000);
-	nvkm_wr32(device, 0x61020c + (chid * 0x0010), chid);
-	nvkm_mask(device, 0x610200 + (chid * 0x0010), 0x00000010, 0x00000010);
-	nvkm_wr32(device, 0x640000 + (chid * 0x1000), 0x00000000);
-	nvkm_wr32(device, 0x610200 + (chid * 0x0010), 0x00000013);
-
-	/* wait for it to go inactive */
-	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x80000000))
-			break;
-	) < 0) {
-		nvkm_error(subdev, "ch %d init timeout, %08x\n", chid,
-			   nvkm_rd32(device, 0x610200 + (chid * 0x10)));
-		return -EBUSY;
-	}
-
-	return 0;
-}
-
-static int
-nv50_disp_dmac_fini(struct nvkm_object *object, bool suspend)
-{
-	struct nv50_disp *disp = (void *)object->engine;
-	struct nv50_disp_dmac *dmac = (void *)object;
-	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
-	struct nvkm_device *device = subdev->device;
-	int chid = dmac->base.chid;
-
-	/* deactivate channel */
-	nvkm_mask(device, 0x610200 + (chid * 0x0010), 0x00001010, 0x00001000);
-	nvkm_mask(device, 0x610200 + (chid * 0x0010), 0x00000003, 0x00000000);
-	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x001e0000))
-			break;
-	) < 0) {
-		nvkm_error(subdev, "ch %d fini timeout, %08x\n", chid,
-			   nvkm_rd32(device, 0x610200 + (chid * 0x10)));
-		if (suspend)
-			return -EBUSY;
-	}
-
-	/* disable error reporting and completion notifications */
-	nvkm_mask(device, 0x610028, 0x00010001 << chid, 0x00000000 << chid);
-
-	return nv50_disp_chan_fini(&dmac->base, suspend);
-}
-
-/*******************************************************************************
- * EVO master channel object
- ******************************************************************************/
-
-static void
-nv50_disp_mthd_list(struct nv50_disp *disp, int debug, u32 base, int c,
-		    const struct nv50_disp_mthd_list *list, int inst)
-{
-	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
-	struct nvkm_device *device = subdev->device;
-	int i;
-
-	for (i = 0; list->data[i].mthd; i++) {
-		if (list->data[i].addr) {
-			u32 next = nvkm_rd32(device, list->data[i].addr + base + 0);
-			u32 prev = nvkm_rd32(device, list->data[i].addr + base + c);
-			u32 mthd = list->data[i].mthd + (list->mthd * inst);
-			const char *name = list->data[i].name;
-			char mods[16];
-
-			if (prev != next)
-				snprintf(mods, sizeof(mods), "-> %08x", next);
-			else
-				snprintf(mods, sizeof(mods), "%13c", ' ');
-
-			nvkm_printk_(subdev, debug, info,
-				     "\t%04x: %08x %s%s%s\n",
-				     mthd, prev, mods, name ? " // " : "",
-				     name ? name : "");
-		}
-	}
-}
-
-void
-nv50_disp_mthd_chan(struct nv50_disp *disp, int debug, int head,
-		    const struct nv50_disp_mthd_chan *chan)
-{
-	struct nvkm_object *object = nv_object(disp);
-	const struct nv50_disp_impl *impl = (void *)object->oclass;
-	const struct nv50_disp_mthd_list *list;
-	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
-	int i, j;
-
-	if (debug > nv_subdev(disp)->debug)
-		return;
-
-	for (i = 0; (list = chan->data[i].mthd) != NULL; i++) {
-		u32 base = head * chan->addr;
-		for (j = 0; j < chan->data[i].nr; j++, base += list->addr) {
-			const char *cname = chan->name;
-			const char *sname = "";
-			char cname_[16], sname_[16];
-
-			if (chan->addr) {
-				snprintf(cname_, sizeof(cname_), "%s %d",
-					 chan->name, head);
-				cname = cname_;
-			}
-
-			if (chan->data[i].nr > 1) {
-				snprintf(sname_, sizeof(sname_), " - %s %d",
-					 chan->data[i].name, j);
-				sname = sname_;
-			}
-
-			nvkm_printk_(subdev, debug, info, "%s%s:\n", cname, sname);
-			nv50_disp_mthd_list(disp, debug, base, impl->mthd.prev,
-					    list, j);
-		}
-	}
-}
-
-const struct nv50_disp_mthd_list
-nv50_disp_core_mthd_base = {
-	.mthd = 0x0000,
-	.addr = 0x000000,
-	.data = {
-		{ 0x0080, 0x000000 },
-		{ 0x0084, 0x610bb8 },
-		{ 0x0088, 0x610b9c },
-		{ 0x008c, 0x000000 },
-		{}
-	}
-};
-
-static const struct nv50_disp_mthd_list
-nv50_disp_core_mthd_dac = {
-	.mthd = 0x0080,
-	.addr = 0x000008,
-	.data = {
-		{ 0x0400, 0x610b58 },
-		{ 0x0404, 0x610bdc },
-		{ 0x0420, 0x610828 },
-		{}
-	}
-};
-
-const struct nv50_disp_mthd_list
-nv50_disp_core_mthd_sor = {
-	.mthd = 0x0040,
-	.addr = 0x000008,
-	.data = {
-		{ 0x0600, 0x610b70 },
-		{}
-	}
-};
-
-const struct nv50_disp_mthd_list
-nv50_disp_core_mthd_pior = {
-	.mthd = 0x0040,
-	.addr = 0x000008,
-	.data = {
-		{ 0x0700, 0x610b80 },
-		{}
-	}
-};
-
-static const struct nv50_disp_mthd_list
-nv50_disp_core_mthd_head = {
-	.mthd = 0x0400,
-	.addr = 0x000540,
-	.data = {
-		{ 0x0800, 0x610ad8 },
-		{ 0x0804, 0x610ad0 },
-		{ 0x0808, 0x610a48 },
-		{ 0x080c, 0x610a78 },
-		{ 0x0810, 0x610ac0 },
-		{ 0x0814, 0x610af8 },
-		{ 0x0818, 0x610b00 },
-		{ 0x081c, 0x610ae8 },
-		{ 0x0820, 0x610af0 },
-		{ 0x0824, 0x610b08 },
-		{ 0x0828, 0x610b10 },
-		{ 0x082c, 0x610a68 },
-		{ 0x0830, 0x610a60 },
-		{ 0x0834, 0x000000 },
-		{ 0x0838, 0x610a40 },
-		{ 0x0840, 0x610a24 },
-		{ 0x0844, 0x610a2c },
-		{ 0x0848, 0x610aa8 },
-		{ 0x084c, 0x610ab0 },
-		{ 0x0860, 0x610a84 },
-		{ 0x0864, 0x610a90 },
-		{ 0x0868, 0x610b18 },
-		{ 0x086c, 0x610b20 },
-		{ 0x0870, 0x610ac8 },
-		{ 0x0874, 0x610a38 },
-		{ 0x0880, 0x610a58 },
-		{ 0x0884, 0x610a9c },
-		{ 0x08a0, 0x610a70 },
-		{ 0x08a4, 0x610a50 },
-		{ 0x08a8, 0x610ae0 },
-		{ 0x08c0, 0x610b28 },
-		{ 0x08c4, 0x610b30 },
-		{ 0x08c8, 0x610b40 },
-		{ 0x08d4, 0x610b38 },
-		{ 0x08d8, 0x610b48 },
-		{ 0x08dc, 0x610b50 },
-		{ 0x0900, 0x610a18 },
-		{ 0x0904, 0x610ab8 },
-		{}
-	}
-};
-
-static const struct nv50_disp_mthd_chan
-nv50_disp_core_mthd_chan = {
-	.name = "Core",
-	.addr = 0x000000,
-	.data = {
-		{ "Global", 1, &nv50_disp_core_mthd_base },
-		{    "DAC", 3, &nv50_disp_core_mthd_dac  },
-		{    "SOR", 2, &nv50_disp_core_mthd_sor  },
-		{   "PIOR", 3, &nv50_disp_core_mthd_pior },
-		{   "HEAD", 2, &nv50_disp_core_mthd_head },
-		{}
-	}
-};
-
-int
-nv50_disp_core_ctor(struct nvkm_object *parent,
-		    struct nvkm_object *engine,
-		    struct nvkm_oclass *oclass, void *data, u32 size,
-		    struct nvkm_object **pobject)
-{
-	union {
-		struct nv50_disp_core_channel_dma_v0 v0;
-	} *args = data;
-	struct nv50_disp_dmac *mast;
-	int ret;
-
-	nvif_ioctl(parent, "create disp core channel dma size %d\n", size);
-	if (nvif_unpack(args->v0, 0, 0, false)) {
-		nvif_ioctl(parent, "create disp core channel dma vers %d "
-				   "pushbuf %016llx\n",
-			   args->v0.version, args->v0.pushbuf);
-	} else
-		return ret;
-
-	ret = nv50_disp_dmac_create_(parent, engine, oclass, args->v0.pushbuf,
-				     0, sizeof(*mast), (void **)&mast);
-	*pobject = nv_object(mast);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
-static int
-nv50_disp_core_init(struct nvkm_object *object)
-{
-	struct nv50_disp *disp = (void *)object->engine;
-	struct nv50_disp_dmac *mast = (void *)object;
-	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
-	struct nvkm_device *device = subdev->device;
-	int ret;
-
-	ret = nv50_disp_chan_init(&mast->base);
-	if (ret)
-		return ret;
-
-	/* enable error reporting */
-	nvkm_mask(device, 0x610028, 0x00010000, 0x00010000);
-
-	/* attempt to unstick channel from some unknown state */
-	if ((nvkm_rd32(device, 0x610200) & 0x009f0000) == 0x00020000)
-		nvkm_mask(device, 0x610200, 0x00800000, 0x00800000);
-	if ((nvkm_rd32(device, 0x610200) & 0x003f0000) == 0x00030000)
-		nvkm_mask(device, 0x610200, 0x00600000, 0x00600000);
-
-	/* initialise channel for dma command submission */
-	nvkm_wr32(device, 0x610204, mast->push);
-	nvkm_wr32(device, 0x610208, 0x00010000);
-	nvkm_wr32(device, 0x61020c, 0x00000000);
-	nvkm_mask(device, 0x610200, 0x00000010, 0x00000010);
-	nvkm_wr32(device, 0x640000, 0x00000000);
-	nvkm_wr32(device, 0x610200, 0x01000013);
-
-	/* wait for it to go inactive */
-	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610200) & 0x80000000))
-			break;
-	) < 0) {
-		nvkm_error(subdev, "core init: %08x\n",
-			   nvkm_rd32(device, 0x610200));
-		return -EBUSY;
-	}
-
-	return 0;
-}
-
-static int
-nv50_disp_core_fini(struct nvkm_object *object, bool suspend)
-{
-	struct nv50_disp *disp = (void *)object->engine;
-	struct nv50_disp_dmac *mast = (void *)object;
-	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
-	struct nvkm_device *device = subdev->device;
-
-	/* deactivate channel */
-	nvkm_mask(device, 0x610200, 0x00000010, 0x00000000);
-	nvkm_mask(device, 0x610200, 0x00000003, 0x00000000);
-	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610200) & 0x001e0000))
-			break;
-	) < 0) {
-		nvkm_error(subdev, "core fini: %08x\n",
-			   nvkm_rd32(device, 0x610200));
-		if (suspend)
-			return -EBUSY;
-	}
-
-	/* disable error reporting and completion notifications */
-	nvkm_mask(device, 0x610028, 0x00010001, 0x00000000);
-
-	return nv50_disp_chan_fini(&mast->base, suspend);
-}
-
-struct nv50_disp_chan_impl
-nv50_disp_core_ofuncs = {
-	.base.ctor = nv50_disp_core_ctor,
-	.base.dtor = nv50_disp_dmac_dtor,
-	.base.init = nv50_disp_core_init,
-	.base.fini = nv50_disp_core_fini,
-	.base.map  = nv50_disp_chan_map,
-	.base.ntfy = nv50_disp_chan_ntfy,
-	.base.rd32 = nv50_disp_chan_rd32,
-	.base.wr32 = nv50_disp_chan_wr32,
-	.chid = 0,
-	.attach = nv50_disp_dmac_object_attach,
-	.detach = nv50_disp_dmac_object_detach,
-};
-
-/*******************************************************************************
- * EVO sync channel objects
- ******************************************************************************/
-
-static const struct nv50_disp_mthd_list
-nv50_disp_base_mthd_base = {
-	.mthd = 0x0000,
-	.addr = 0x000000,
-	.data = {
-		{ 0x0080, 0x000000 },
-		{ 0x0084, 0x0008c4 },
-		{ 0x0088, 0x0008d0 },
-		{ 0x008c, 0x0008dc },
-		{ 0x0090, 0x0008e4 },
-		{ 0x0094, 0x610884 },
-		{ 0x00a0, 0x6108a0 },
-		{ 0x00a4, 0x610878 },
-		{ 0x00c0, 0x61086c },
-		{ 0x00e0, 0x610858 },
-		{ 0x00e4, 0x610860 },
-		{ 0x00e8, 0x6108ac },
-		{ 0x00ec, 0x6108b4 },
-		{ 0x0100, 0x610894 },
-		{ 0x0110, 0x6108bc },
-		{ 0x0114, 0x61088c },
-		{}
-	}
-};
-
-const struct nv50_disp_mthd_list
-nv50_disp_base_mthd_image = {
-	.mthd = 0x0400,
-	.addr = 0x000000,
-	.data = {
-		{ 0x0800, 0x6108f0 },
-		{ 0x0804, 0x6108fc },
-		{ 0x0808, 0x61090c },
-		{ 0x080c, 0x610914 },
-		{ 0x0810, 0x610904 },
-		{}
-	}
-};
-
-static const struct nv50_disp_mthd_chan
-nv50_disp_base_mthd_chan = {
-	.name = "Base",
-	.addr = 0x000540,
-	.data = {
-		{ "Global", 1, &nv50_disp_base_mthd_base },
-		{  "Image", 2, &nv50_disp_base_mthd_image },
-		{}
-	}
-};
-
-int
-nv50_disp_base_ctor(struct nvkm_object *parent,
-		    struct nvkm_object *engine,
-		    struct nvkm_oclass *oclass, void *data, u32 size,
-		    struct nvkm_object **pobject)
-{
-	union {
-		struct nv50_disp_base_channel_dma_v0 v0;
-	} *args = data;
-	struct nv50_disp *disp = (void *)engine;
-	struct nv50_disp_dmac *dmac;
-	int ret;
-
-	nvif_ioctl(parent, "create disp base channel dma size %d\n", size);
-	if (nvif_unpack(args->v0, 0, 0, false)) {
-		nvif_ioctl(parent, "create disp base channel dma vers %d "
-				   "pushbuf %016llx head %d\n",
-			   args->v0.version, args->v0.pushbuf, args->v0.head);
-		if (args->v0.head > disp->head.nr)
-			return -EINVAL;
-	} else
-		return ret;
-
-	ret = nv50_disp_dmac_create_(parent, engine, oclass, args->v0.pushbuf,
-				     args->v0.head, sizeof(*dmac),
-				     (void **)&dmac);
-	*pobject = nv_object(dmac);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
-struct nv50_disp_chan_impl
-nv50_disp_base_ofuncs = {
-	.base.ctor = nv50_disp_base_ctor,
-	.base.dtor = nv50_disp_dmac_dtor,
-	.base.init = nv50_disp_dmac_init,
-	.base.fini = nv50_disp_dmac_fini,
-	.base.ntfy = nv50_disp_chan_ntfy,
-	.base.map  = nv50_disp_chan_map,
-	.base.rd32 = nv50_disp_chan_rd32,
-	.base.wr32 = nv50_disp_chan_wr32,
-	.chid = 1,
-	.attach = nv50_disp_dmac_object_attach,
-	.detach = nv50_disp_dmac_object_detach,
-};
-
-/*******************************************************************************
- * EVO overlay channel objects
- ******************************************************************************/
-
-const struct nv50_disp_mthd_list
-nv50_disp_ovly_mthd_base = {
-	.mthd = 0x0000,
-	.addr = 0x000000,
-	.data = {
-		{ 0x0080, 0x000000 },
-		{ 0x0084, 0x0009a0 },
-		{ 0x0088, 0x0009c0 },
-		{ 0x008c, 0x0009c8 },
-		{ 0x0090, 0x6109b4 },
-		{ 0x0094, 0x610970 },
-		{ 0x00a0, 0x610998 },
-		{ 0x00a4, 0x610964 },
-		{ 0x00c0, 0x610958 },
-		{ 0x00e0, 0x6109a8 },
-		{ 0x00e4, 0x6109d0 },
-		{ 0x00e8, 0x6109d8 },
-		{ 0x0100, 0x61094c },
-		{ 0x0104, 0x610984 },
-		{ 0x0108, 0x61098c },
-		{ 0x0800, 0x6109f8 },
-		{ 0x0808, 0x610a08 },
-		{ 0x080c, 0x610a10 },
-		{ 0x0810, 0x610a00 },
-		{}
-	}
-};
-
-static const struct nv50_disp_mthd_chan
-nv50_disp_ovly_mthd_chan = {
-	.name = "Overlay",
-	.addr = 0x000540,
-	.data = {
-		{ "Global", 1, &nv50_disp_ovly_mthd_base },
-		{}
-	}
-};
-
-int
-nv50_disp_ovly_ctor(struct nvkm_object *parent,
-		    struct nvkm_object *engine,
-		    struct nvkm_oclass *oclass, void *data, u32 size,
-		    struct nvkm_object **pobject)
-{
-	union {
-		struct nv50_disp_overlay_channel_dma_v0 v0;
-	} *args = data;
-	struct nv50_disp *disp = (void *)engine;
-	struct nv50_disp_dmac *dmac;
-	int ret;
-
-	nvif_ioctl(parent, "create disp overlay channel dma size %d\n", size);
-	if (nvif_unpack(args->v0, 0, 0, false)) {
-		nvif_ioctl(parent, "create disp overlay channel dma vers %d "
-				   "pushbuf %016llx head %d\n",
-			   args->v0.version, args->v0.pushbuf, args->v0.head);
-		if (args->v0.head > disp->head.nr)
-			return -EINVAL;
-	} else
-		return ret;
-
-	ret = nv50_disp_dmac_create_(parent, engine, oclass, args->v0.pushbuf,
-				     args->v0.head, sizeof(*dmac),
-				     (void **)&dmac);
-	*pobject = nv_object(dmac);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
-struct nv50_disp_chan_impl
-nv50_disp_ovly_ofuncs = {
-	.base.ctor = nv50_disp_ovly_ctor,
-	.base.dtor = nv50_disp_dmac_dtor,
-	.base.init = nv50_disp_dmac_init,
-	.base.fini = nv50_disp_dmac_fini,
-	.base.ntfy = nv50_disp_chan_ntfy,
-	.base.map  = nv50_disp_chan_map,
-	.base.rd32 = nv50_disp_chan_rd32,
-	.base.wr32 = nv50_disp_chan_wr32,
-	.chid = 3,
-	.attach = nv50_disp_dmac_object_attach,
-	.detach = nv50_disp_dmac_object_detach,
-};
-
-/*******************************************************************************
- * EVO PIO channel base class
- ******************************************************************************/
-
-static int
-nv50_disp_pioc_create_(struct nvkm_object *parent,
-		       struct nvkm_object *engine,
-		       struct nvkm_oclass *oclass, int head,
-		       int length, void **pobject)
-{
-	return nv50_disp_chan_create_(parent, engine, oclass, head,
-				      length, pobject);
-}
-
-void
-nv50_disp_pioc_dtor(struct nvkm_object *object)
-{
-	struct nv50_disp_pioc *pioc = (void *)object;
-	nv50_disp_chan_destroy(&pioc->base);
-}
-
-static int
-nv50_disp_pioc_init(struct nvkm_object *object)
-{
-	struct nv50_disp *disp = (void *)object->engine;
-	struct nv50_disp_pioc *pioc = (void *)object;
-	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
-	struct nvkm_device *device = subdev->device;
-	int chid = pioc->base.chid;
-	int ret;
-
-	ret = nv50_disp_chan_init(&pioc->base);
-	if (ret)
-		return ret;
-
-	nvkm_wr32(device, 0x610200 + (chid * 0x10), 0x00002000);
-	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x00030000))
-			break;
-	) < 0) {
-		nvkm_error(subdev, "ch %d timeout0: %08x\n", chid,
-			   nvkm_rd32(device, 0x610200 + (chid * 0x10)));
-		return -EBUSY;
-	}
-
-	nvkm_wr32(device, 0x610200 + (chid * 0x10), 0x00000001);
-	if (nvkm_msec(device, 2000,
-		u32 tmp = nvkm_rd32(device, 0x610200 + (chid * 0x10));
-		if ((tmp & 0x00030000) == 0x00010000)
-			break;
-	) < 0) {
-		nvkm_error(subdev, "ch %d timeout1: %08x\n", chid,
-			   nvkm_rd32(device, 0x610200 + (chid * 0x10)));
-		return -EBUSY;
-	}
-
-	return 0;
-}
-
-static int
-nv50_disp_pioc_fini(struct nvkm_object *object, bool suspend)
-{
-	struct nv50_disp *disp = (void *)object->engine;
-	struct nv50_disp_pioc *pioc = (void *)object;
-	struct nvkm_subdev *subdev = &disp->base.engine.subdev;
-	struct nvkm_device *device = subdev->device;
-	int chid = pioc->base.chid;
-
-	nvkm_mask(device, 0x610200 + (chid * 0x10), 0x00000001, 0x00000000);
-	if (nvkm_msec(device, 2000,
-		if (!(nvkm_rd32(device, 0x610200 + (chid * 0x10)) & 0x00030000))
-			break;
-	) < 0) {
-		nvkm_error(subdev, "ch %d timeout: %08x\n", chid,
-			   nvkm_rd32(device, 0x610200 + (chid * 0x10)));
-		if (suspend)
-			return -EBUSY;
-	}
-
-	return nv50_disp_chan_fini(&pioc->base, suspend);
-}
-
-/*******************************************************************************
- * EVO immediate overlay channel objects
- ******************************************************************************/
-
-int
-nv50_disp_oimm_ctor(struct nvkm_object *parent,
-		    struct nvkm_object *engine,
-		    struct nvkm_oclass *oclass, void *data, u32 size,
-		    struct nvkm_object **pobject)
-{
-	union {
-		struct nv50_disp_overlay_v0 v0;
-	} *args = data;
-	struct nv50_disp *disp = (void *)engine;
-	struct nv50_disp_pioc *pioc;
-	int ret;
-
-	nvif_ioctl(parent, "create disp overlay size %d\n", size);
-	if (nvif_unpack(args->v0, 0, 0, false)) {
-		nvif_ioctl(parent, "create disp overlay vers %d head %d\n",
-			   args->v0.version, args->v0.head);
-		if (args->v0.head > disp->head.nr)
-			return -EINVAL;
-	} else
-		return ret;
-
-	ret = nv50_disp_pioc_create_(parent, engine, oclass, args->v0.head,
-				     sizeof(*pioc), (void **)&pioc);
-	*pobject = nv_object(pioc);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
-struct nv50_disp_chan_impl
-nv50_disp_oimm_ofuncs = {
-	.base.ctor = nv50_disp_oimm_ctor,
-	.base.dtor = nv50_disp_pioc_dtor,
-	.base.init = nv50_disp_pioc_init,
-	.base.fini = nv50_disp_pioc_fini,
-	.base.ntfy = nv50_disp_chan_ntfy,
-	.base.map  = nv50_disp_chan_map,
-	.base.rd32 = nv50_disp_chan_rd32,
-	.base.wr32 = nv50_disp_chan_wr32,
-	.chid = 5,
-};
-
-/*******************************************************************************
- * EVO cursor channel objects
- ******************************************************************************/
-
-int
-nv50_disp_curs_ctor(struct nvkm_object *parent,
-		    struct nvkm_object *engine,
-		    struct nvkm_oclass *oclass, void *data, u32 size,
-		    struct nvkm_object **pobject)
-{
-	union {
-		struct nv50_disp_cursor_v0 v0;
-	} *args = data;
-	struct nv50_disp *disp = (void *)engine;
-	struct nv50_disp_pioc *pioc;
-	int ret;
-
-	nvif_ioctl(parent, "create disp cursor size %d\n", size);
-	if (nvif_unpack(args->v0, 0, 0, false)) {
-		nvif_ioctl(parent, "create disp cursor vers %d head %d\n",
-			   args->v0.version, args->v0.head);
-		if (args->v0.head > disp->head.nr)
-			return -EINVAL;
-	} else
-		return ret;
-
-	ret = nv50_disp_pioc_create_(parent, engine, oclass, args->v0.head,
-				     sizeof(*pioc), (void **)&pioc);
-	*pobject = nv_object(pioc);
-	if (ret)
-		return ret;
-
-	return 0;
-}
-
-struct nv50_disp_chan_impl
-nv50_disp_curs_ofuncs = {
-	.base.ctor = nv50_disp_curs_ctor,
-	.base.dtor = nv50_disp_pioc_dtor,
-	.base.init = nv50_disp_pioc_init,
-	.base.fini = nv50_disp_pioc_fini,
-	.base.ntfy = nv50_disp_chan_ntfy,
-	.base.map  = nv50_disp_chan_map,
-	.base.rd32 = nv50_disp_chan_rd32,
-	.base.wr32 = nv50_disp_chan_wr32,
-	.chid = 7,
-};
-
-/*******************************************************************************
- * Base display object
- ******************************************************************************/
-
-int
-nv50_disp_main_scanoutpos(NV50_DISP_MTHD_V0)
-{
-	struct nvkm_device *device = disp->base.engine.subdev.device;
-	const u32 blanke = nvkm_rd32(device, 0x610aec + (head * 0x540));
-	const u32 blanks = nvkm_rd32(device, 0x610af4 + (head * 0x540));
-	const u32 total  = nvkm_rd32(device, 0x610afc + (head * 0x540));
-	union {
-		struct nv04_disp_scanoutpos_v0 v0;
-	} *args = data;
-	int ret;
-
-	nvif_ioctl(object, "disp scanoutpos size %d\n", size);
-	if (nvif_unpack(args->v0, 0, 0, false)) {
-		nvif_ioctl(object, "disp scanoutpos vers %d\n",
-			   args->v0.version);
-		args->v0.vblanke = (blanke & 0xffff0000) >> 16;
-		args->v0.hblanke = (blanke & 0x0000ffff);
-		args->v0.vblanks = (blanks & 0xffff0000) >> 16;
-		args->v0.hblanks = (blanks & 0x0000ffff);
-		args->v0.vtotal  = ( total & 0xffff0000) >> 16;
-		args->v0.htotal  = ( total & 0x0000ffff);
-		args->v0.time[0] = ktime_to_ns(ktime_get());
-		args->v0.vline = /* vline read locks hline */
-			nvkm_rd32(device, 0x616340 + (head * 0x800)) & 0xffff;
-		args->v0.time[1] = ktime_to_ns(ktime_get());
-		args->v0.hline =
-			nvkm_rd32(device, 0x616344 + (head * 0x800)) & 0xffff;
-	} else
-		return ret;
-
-	return 0;
-}
-
-int
-nv50_disp_main_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size)
-{
-	const struct nv50_disp_impl *impl = (void *)nv_oclass(object->engine);
-	union {
-		struct nv50_disp_mthd_v0 v0;
-		struct nv50_disp_mthd_v1 v1;
-	} *args = data;
-	struct nv50_disp *disp = (void *)object->engine;
-	struct nvkm_output *outp = NULL;
-	struct nvkm_output *temp;
-	u16 type, mask = 0;
-	int head, ret;
-
-	if (mthd != NV50_DISP_MTHD)
-		return -EINVAL;
-
-	nvif_ioctl(object, "disp mthd size %d\n", size);
-	if (nvif_unpack(args->v0, 0, 0, true)) {
-		nvif_ioctl(object, "disp mthd vers %d mthd %02x head %d\n",
-			   args->v0.version, args->v0.method, args->v0.head);
-		mthd = args->v0.method;
-		head = args->v0.head;
-	} else
-	if (nvif_unpack(args->v1, 1, 1, true)) {
-		nvif_ioctl(object, "disp mthd vers %d mthd %02x "
-				   "type %04x mask %04x\n",
-			   args->v1.version, args->v1.method,
-			   args->v1.hasht, args->v1.hashm);
-		mthd = args->v1.method;
-		type = args->v1.hasht;
-		mask = args->v1.hashm;
-		head = ffs((mask >> 8) & 0x0f) - 1;
-	} else
-		return ret;
-
-	if (head < 0 || head >= disp->head.nr)
-		return -ENXIO;
-
-	if (mask) {
-		list_for_each_entry(temp, &disp->base.outp, head) {
-			if ((temp->info.hasht         == type) &&
-			    (temp->info.hashm & mask) == mask) {
-				outp = temp;
-				break;
-			}
-		}
-		if (outp == NULL)
-			return -ENXIO;
-	}
-
-	switch (mthd) {
-	case NV50_DISP_SCANOUTPOS:
-		return impl->head.scanoutpos(object, disp, data, size, head);
-	default:
-		break;
-	}
-
-	switch (mthd * !!outp) {
-	case NV50_DISP_MTHD_V1_DAC_PWR:
-		return disp->dac.power(object, disp, data, size, head, outp);
-	case NV50_DISP_MTHD_V1_DAC_LOAD:
-		return disp->dac.sense(object, disp, data, size, head, outp);
-	case NV50_DISP_MTHD_V1_SOR_PWR:
-		return disp->sor.power(object, disp, data, size, head, outp);
-	case NV50_DISP_MTHD_V1_SOR_HDA_ELD:
-		if (!disp->sor.hda_eld)
-			return -ENODEV;
-		return disp->sor.hda_eld(object, disp, data, size, head, outp);
-	case NV50_DISP_MTHD_V1_SOR_HDMI_PWR:
-		if (!disp->sor.hdmi)
-			return -ENODEV;
-		return disp->sor.hdmi(object, disp, data, size, head, outp);
-	case NV50_DISP_MTHD_V1_SOR_LVDS_SCRIPT: {
-		union {
-			struct nv50_disp_sor_lvds_script_v0 v0;
-		} *args = data;
-		nvif_ioctl(object, "disp sor lvds script size %d\n", size);
-		if (nvif_unpack(args->v0, 0, 0, false)) {
-			nvif_ioctl(object, "disp sor lvds script "
-					   "vers %d name %04x\n",
-				   args->v0.version, args->v0.script);
-			disp->sor.lvdsconf = args->v0.script;
-			return 0;
-		} else
-			return ret;
-	}
-		break;
-	case NV50_DISP_MTHD_V1_SOR_DP_PWR: {
-		struct nvkm_output_dp *outpdp = nvkm_output_dp(outp);
-		union {
-			struct nv50_disp_sor_dp_pwr_v0 v0;
-		} *args = data;
-		nvif_ioctl(object, "disp sor dp pwr size %d\n", size);
-		if (nvif_unpack(args->v0, 0, 0, false)) {
-			nvif_ioctl(object, "disp sor dp pwr vers %d state %d\n",
-				   args->v0.version, args->v0.state);
-			if (args->v0.state == 0) {
-				nvkm_notify_put(&outpdp->irq);
-				outpdp->func->lnk_pwr(outpdp, 0);
-				atomic_set(&outpdp->lt.done, 0);
-				return 0;
-			} else
-			if (args->v0.state != 0) {
-				nvkm_output_dp_train(&outpdp->base, 0, true);
-				return 0;
-			}
-		} else
-			return ret;
-	}
-		break;
-	case NV50_DISP_MTHD_V1_PIOR_PWR:
-		if (!disp->pior.power)
-			return -ENODEV;
-		return disp->pior.power(object, disp, data, size, head, outp);
-	default:
-		break;
-	}
-
-	return -EINVAL;
-}
-
-int
-nv50_disp_main_ctor(struct nvkm_object *parent,
-		    struct nvkm_object *engine,
-		    struct nvkm_oclass *oclass, void *data, u32 size,
-		    struct nvkm_object **pobject)
-{
-	struct nv50_disp *disp = (void *)engine;
-	struct nv50_disp_base *base;
-	struct nvkm_device *device = disp->base.engine.subdev.device;
-	struct nvkm_gpuobj *instmem = (void *)parent;
-	int ret;
-
-	ret = nvkm_parent_create(parent, engine, oclass, 0,
-				 disp->sclass, 0, &base);
-	*pobject = nv_object(base);
-	if (ret)
-		return ret;
-
-	return nvkm_ramht_new(device, 0x1000, 0, instmem, &base->ramht);
-}
-
-void
-nv50_disp_main_dtor(struct nvkm_object *object)
-{
-	struct nv50_disp_base *base = (void *)object;
-	nvkm_ramht_del(&base->ramht);
-	nvkm_parent_destroy(&base->base);
-}
-
-static int
-nv50_disp_main_init(struct nvkm_object *object)
-{
-	struct nv50_disp *disp = (void *)object->engine;
-	struct nv50_disp_base *base = (void *)object;
-	struct nvkm_device *device = disp->base.engine.subdev.device;
-	int ret, i;
-	u32 tmp;
-
-	ret = nvkm_parent_init(&base->base);
-	if (ret)
-		return ret;
-
-	/* The below segments of code copying values from one register to
-	 * another appear to inform EVO of the display capabilities or
-	 * something similar.  NFI what the 0x614004 caps are for..
-	 */
-	tmp = nvkm_rd32(device, 0x614004);
-	nvkm_wr32(device, 0x610184, tmp);
-
-	/* ... CRTC caps */
-	for (i = 0; i < disp->head.nr; i++) {
-		tmp = nvkm_rd32(device, 0x616100 + (i * 0x800));
-		nvkm_wr32(device, 0x610190 + (i * 0x10), tmp);
-		tmp = nvkm_rd32(device, 0x616104 + (i * 0x800));
-		nvkm_wr32(device, 0x610194 + (i * 0x10), tmp);
-		tmp = nvkm_rd32(device, 0x616108 + (i * 0x800));
-		nvkm_wr32(device, 0x610198 + (i * 0x10), tmp);
-		tmp = nvkm_rd32(device, 0x61610c + (i * 0x800));
-		nvkm_wr32(device, 0x61019c + (i * 0x10), tmp);
-	}
-
-	/* ... DAC caps */
-	for (i = 0; i < disp->dac.nr; i++) {
-		tmp = nvkm_rd32(device, 0x61a000 + (i * 0x800));
-		nvkm_wr32(device, 0x6101d0 + (i * 0x04), tmp);
-	}
-
-	/* ... SOR caps */
-	for (i = 0; i < disp->sor.nr; i++) {
-		tmp = nvkm_rd32(device, 0x61c000 + (i * 0x800));
-		nvkm_wr32(device, 0x6101e0 + (i * 0x04), tmp);
-	}
-
-	/* ... PIOR caps */
-	for (i = 0; i < disp->pior.nr; i++) {
-		tmp = nvkm_rd32(device, 0x61e000 + (i * 0x800));
-		nvkm_wr32(device, 0x6101f0 + (i * 0x04), tmp);
-	}
-
-	/* steal display away from vbios, or something like that */
-	if (nvkm_rd32(device, 0x610024) & 0x00000100) {
-		nvkm_wr32(device, 0x610024, 0x00000100);
-		nvkm_mask(device, 0x6194e8, 0x00000001, 0x00000000);
-		if (nvkm_msec(device, 2000,
-			if (!(nvkm_rd32(device, 0x6194e8) & 0x00000002))
-				break;
-		) < 0)
-			return -EBUSY;
-	}
-
-	/* point at display engine memory area (hash table, objects) */
-	nvkm_wr32(device, 0x610010, (base->ramht->gpuobj->addr >> 8) | 9);
-
-	/* enable supervisor interrupts, disable everything else */
-	nvkm_wr32(device, 0x61002c, 0x00000370);
-	nvkm_wr32(device, 0x610028, 0x00000000);
-	return 0;
-}
-
-static int
-nv50_disp_main_fini(struct nvkm_object *object, bool suspend)
-{
-	struct nv50_disp *disp = (void *)object->engine;
-	struct nv50_disp_base *base = (void *)object;
-	struct nvkm_device *device = disp->base.engine.subdev.device;
-
-	/* disable all interrupts */
-	nvkm_wr32(device, 0x610024, 0x00000000);
-	nvkm_wr32(device, 0x610020, 0x00000000);
-
-	return nvkm_parent_fini(&base->base, suspend);
-}
-
-struct nvkm_ofuncs
-nv50_disp_main_ofuncs = {
-	.ctor = nv50_disp_main_ctor,
-	.dtor = nv50_disp_main_dtor,
-	.init = nv50_disp_main_init,
-	.fini = nv50_disp_main_fini,
-	.mthd = nv50_disp_main_mthd,
-	.ntfy = nvkm_disp_ntfy,
-};
-
-static struct nvkm_oclass
-nv50_disp_main_oclass[] = {
-	{ NV50_DISP, &nv50_disp_main_ofuncs },
-	{}
-};
-
-static struct nvkm_oclass
-nv50_disp_sclass[] = {
-	{ NV50_DISP_CORE_CHANNEL_DMA, &nv50_disp_core_ofuncs.base },
-	{ NV50_DISP_BASE_CHANNEL_DMA, &nv50_disp_base_ofuncs.base },
-	{ NV50_DISP_OVERLAY_CHANNEL_DMA, &nv50_disp_ovly_ofuncs.base },
-	{ NV50_DISP_OVERLAY, &nv50_disp_oimm_ofuncs.base },
-	{ NV50_DISP_CURSOR, &nv50_disp_curs_ofuncs.base },
-	{}
-};
-
-/*******************************************************************************
- * Display context, tracks instmem allocation and prevents more than one
- * client using the display hardware at any time.
- ******************************************************************************/
 
 static int
 nv50_disp_data_ctor(struct nvkm_object *parent,
@@ -1323,10 +74,6 @@ nv50_disp_cclass = {
 	},
 };
 
-/*******************************************************************************
- * Display engine implementation
- ******************************************************************************/
-
 static void
 nv50_disp_vblank_fini(struct nvkm_event *event, int type, int head)
 {
@@ -2027,7 +774,7 @@ nv50_disp_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
 	if (ret)
 		return ret;
 
-	nv_engine(disp)->sclass = nv50_disp_main_oclass;
+	nv_engine(disp)->sclass = nv50_disp_root_oclass;
 	nv_engine(disp)->cclass = &nv50_disp_cclass;
 	nv_subdev(disp)->intr = nv50_disp_intr;
 	INIT_WORK(&disp->supervisor, nv50_disp_intr_supervisor);
@@ -2062,5 +809,5 @@ nv50_disp_oclass = &(struct nv50_disp_impl) {
 	.mthd.base = &nv50_disp_base_mthd_chan,
 	.mthd.ovly = &nv50_disp_ovly_mthd_chan,
 	.mthd.prev = 0x000004,
-	.head.scanoutpos = nv50_disp_main_scanoutpos,
+	.head.scanoutpos = nv50_disp_root_scanoutpos,
 }.base.base;