drivers/gpu/drm/nouveau/core/engine/disp/nv50.c - kernel/msm-4.9 - Gitiles

 /*
  * 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 <engine/software.h>
 #include <engine/disp.h>

 #include "nv50.h"

 /*******************************************************************************
  * EVO channel common helpers
  ******************************************************************************/

 static u32
 nv50_disp_chan_rd32(struct nouveau_object *object, u64 addr)
 {
 	return 0xdeadcafe;
 }

 static void
 nv50_disp_chan_wr32(struct nouveau_object *object, u64 addr, u32 data)
 {
 }

 /*******************************************************************************
  * EVO master channel object
  ******************************************************************************/

 static int
 nv50_disp_mast_ctor(struct nouveau_object *parent,
 		    struct nouveau_object *engine,
 		    struct nouveau_oclass *oclass, void *data, u32 size,
 		    struct nouveau_object **pobject)
 {
 	struct nv50_disp_chan *chan;
 	int ret;

 	ret = nouveau_object_create(parent, engine, oclass, 0, &chan);
 	*pobject = nv_object(chan);
 	if (ret)
 		return ret;

 	return 0;
 }

 static void
 nv50_disp_mast_dtor(struct nouveau_object *object)
 {
 	struct nv50_disp_chan *chan = (void *)object;
 	nouveau_object_destroy(&chan->base);
 }

 static int
 nv50_disp_mast_init(struct nouveau_object *object)
 {
 	struct nv50_disp_chan *chan = (void *)object;
 	int ret;

 	ret = nouveau_object_init(&chan->base);
 	if (ret)
 		return ret;

 	return 0;
 }

 static int
 nv50_disp_mast_fini(struct nouveau_object *object, bool suspend)
 {
 	struct nv50_disp_chan *chan = (void *)object;
 	return nouveau_object_fini(&chan->base, suspend);
 }

 struct nouveau_ofuncs
 nv50_disp_mast_ofuncs = {
 	.ctor = nv50_disp_mast_ctor,
 	.dtor = nv50_disp_mast_dtor,
 	.init = nv50_disp_mast_init,
 	.fini = nv50_disp_mast_fini,
 	.rd32 = nv50_disp_chan_rd32,
 	.wr32 = nv50_disp_chan_wr32,
 };

 /*******************************************************************************
  * EVO DMA channel objects (sync, overlay)
  ******************************************************************************/

 static int
 nv50_disp_dmac_ctor(struct nouveau_object *parent,
 		    struct nouveau_object *engine,
 		    struct nouveau_oclass *oclass, void *data, u32 size,
 		    struct nouveau_object **pobject)
 {
 	struct nv50_disp_chan *chan;
 	int ret;

 	ret = nouveau_object_create(parent, engine, oclass, 0, &chan);
 	*pobject = nv_object(chan);
 	if (ret)
 		return ret;

 	return 0;
 }

 static void
 nv50_disp_dmac_dtor(struct nouveau_object *object)
 {
 	struct nv50_disp_chan *chan = (void *)object;
 	nouveau_object_destroy(&chan->base);
 }

 static int
 nv50_disp_dmac_init(struct nouveau_object *object)
 {
 	struct nv50_disp_chan *chan = (void *)object;
 	int ret;

 	ret = nouveau_object_init(&chan->base);
 	if (ret)
 		return ret;

 	return 0;
 }

 static int
 nv50_disp_dmac_fini(struct nouveau_object *object, bool suspend)
 {
 	struct nv50_disp_chan *chan = (void *)object;
 	return nouveau_object_fini(&chan->base, suspend);
 }

 struct nouveau_ofuncs
 nv50_disp_dmac_ofuncs = {
 	.ctor = nv50_disp_dmac_ctor,
 	.dtor = nv50_disp_dmac_dtor,
 	.init = nv50_disp_dmac_init,
 	.fini = nv50_disp_dmac_fini,
 	.rd32 = nv50_disp_chan_rd32,
 	.wr32 = nv50_disp_chan_wr32,
 };

 /*******************************************************************************
  * EVO PIO channel objects (cursor, immediate overlay controls)
  ******************************************************************************/

 static int
 nv50_disp_pioc_ctor(struct nouveau_object *parent,
 		    struct nouveau_object *engine,
 		    struct nouveau_oclass *oclass, void *data, u32 size,
 		    struct nouveau_object **pobject)
 {
 	struct nv50_disp_chan *chan;
 	int ret;

 	ret = nouveau_object_create(parent, engine, oclass, 0, &chan);
 	*pobject = nv_object(chan);
 	if (ret)
 		return ret;

 	return 0;
 }

 static void
 nv50_disp_pioc_dtor(struct nouveau_object *object)
 {
 	struct nv50_disp_chan *chan = (void *)object;
 	nouveau_object_destroy(&chan->base);
 }

 static int
 nv50_disp_pioc_init(struct nouveau_object *object)
 {
 	struct nv50_disp_chan *chan = (void *)object;
 	int ret;

 	ret = nouveau_object_init(&chan->base);
 	if (ret)
 		return ret;

 	return 0;
 }

 static int
 nv50_disp_pioc_fini(struct nouveau_object *object, bool suspend)
 {
 	struct nv50_disp_chan *chan = (void *)object;
 	return nouveau_object_fini(&chan->base, suspend);
 }

 struct nouveau_ofuncs
 nv50_disp_pioc_ofuncs = {
 	.ctor = nv50_disp_pioc_ctor,
 	.dtor = nv50_disp_pioc_dtor,
 	.init = nv50_disp_pioc_init,
 	.fini = nv50_disp_pioc_fini,
 	.rd32 = nv50_disp_chan_rd32,
 	.wr32 = nv50_disp_chan_wr32,
 };

 /*******************************************************************************
  * Base display object
  ******************************************************************************/

 static int
 nv50_disp_base_ctor(struct nouveau_object *parent,
 		    struct nouveau_object *engine,
 		    struct nouveau_oclass *oclass, void *data, u32 size,
 		    struct nouveau_object **pobject)
 {
 	struct nv50_disp_priv *priv = (void *)engine;
 	struct nv50_disp_base *base;
 	int ret;

 	ret = nouveau_parent_create(parent, engine, oclass, 0,
 				    priv->sclass, 0, &base);
 	*pobject = nv_object(base);
 	if (ret)
 		return ret;

 	return 0;
 }

 static void
 nv50_disp_base_dtor(struct nouveau_object *object)
 {
 	struct nv50_disp_base *base = (void *)object;
 	nouveau_parent_destroy(&base->base);
 }

 static int
 nv50_disp_base_init(struct nouveau_object *object)
 {
 	struct nv50_disp_base *base = (void *)object;
 	int ret;

 	ret = nouveau_parent_init(&base->base);
 	if (ret)
 		return ret;

 	/* caps */
 	/* intr 100 */
 	/* 6194e8 shit */
 	/* intr */
 	/* set 610010 from engctx */
 	/* acquire mast? */
 	return 0;
 }

 static int
 nv50_disp_base_fini(struct nouveau_object *object, bool suspend)
 {
 	struct nv50_disp_base *base = (void *)object;
 	return nouveau_parent_fini(&base->base, suspend);
 }

 struct nouveau_ofuncs
 nv50_disp_base_ofuncs = {
 	.ctor = nv50_disp_base_ctor,
 	.dtor = nv50_disp_base_dtor,
 	.init = nv50_disp_base_init,
 	.fini = nv50_disp_base_fini,
 };

 static struct nouveau_oclass
 nv50_disp_base_oclass[] = {
 	{ 0x5070, &nv50_disp_base_ofuncs },
 };

 static struct nouveau_oclass
 nv50_disp_sclass[] = {
 	{ 0x507d, &nv50_disp_mast_ofuncs }, /* master */
 	{ 0x507c, &nv50_disp_dmac_ofuncs }, /* sync */
 	{ 0x507e, &nv50_disp_dmac_ofuncs }, /* overlay */
 	{ 0x507b, &nv50_disp_pioc_ofuncs }, /* overlay (pio) */
 	{ 0x507a, &nv50_disp_pioc_ofuncs }, /* cursor (pio) */
 	{}
 };

 /*******************************************************************************
  * 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 nouveau_object *parent,
 		    struct nouveau_object *engine,
 		    struct nouveau_oclass *oclass, void *data, u32 size,
 		    struct nouveau_object **pobject)
 {
 	struct nouveau_engctx *ectx;
 	int ret;

 	ret = nouveau_engctx_create(parent, engine, oclass, NULL, 0x10000,
 				    0x10000, NVOBJ_FLAG_ZERO_ALLOC, &ectx);
 	*pobject = nv_object(ectx);
 	if (ret)
 		return ret;

 	return 0;
 }

 struct nouveau_oclass
 nv50_disp_cclass = {
 	.handle = NV_ENGCTX(DISP, 0x50),
 	.ofuncs = &(struct nouveau_ofuncs) {
 		.ctor = nv50_disp_data_ctor,
 		.dtor = _nouveau_engctx_dtor,
 		.init = _nouveau_engctx_init,
 		.fini = _nouveau_engctx_fini,
 		.rd32 = _nouveau_engctx_rd32,
 		.wr32 = _nouveau_engctx_wr32,
 	},
 };

 /*******************************************************************************
  * Display engine implementation
  ******************************************************************************/

 static void
 nv50_disp_intr_vblank(struct nv50_disp_priv *priv, int crtc)
 {
 	struct nouveau_disp *disp = &priv->base;
 	struct nouveau_software_chan *chan, *temp;
 	unsigned long flags;

 	spin_lock_irqsave(&disp->vblank.lock, flags);
 	list_for_each_entry_safe(chan, temp, &disp->vblank.list, vblank.head) {
 		if (chan->vblank.crtc != crtc)
 			continue;

 		nv_wr32(priv, 0x001704, chan->vblank.channel);
 		nv_wr32(priv, 0x001710, 0x80000000 | chan->vblank.ctxdma);

 		if (nv_device(priv)->chipset == 0x50) {
 			nv_wr32(priv, 0x001570, chan->vblank.offset);
 			nv_wr32(priv, 0x001574, chan->vblank.value);
 		} else {
 			if (nv_device(priv)->chipset >= 0xc0) {
 				nv_wr32(priv, 0x06000c,
 					upper_32_bits(chan->vblank.offset));
 			}
 			nv_wr32(priv, 0x060010, chan->vblank.offset);
 			nv_wr32(priv, 0x060014, chan->vblank.value);
 		}

 		list_del(&chan->vblank.head);
 		if (disp->vblank.put)
 			disp->vblank.put(disp->vblank.data, crtc);
 	}
 	spin_unlock_irqrestore(&disp->vblank.lock, flags);

 	if (disp->vblank.notify)
 		disp->vblank.notify(disp->vblank.data, crtc);
 }

 void
 nv50_disp_intr(struct nouveau_subdev *subdev)
 {
 	struct nv50_disp_priv *priv = (void *)subdev;
 	u32 stat1 = nv_rd32(priv, 0x610024);

 	if (stat1 & 0x00000004) {
 		nv50_disp_intr_vblank(priv, 0);
 		nv_wr32(priv, 0x610024, 0x00000004);
 		stat1 &= ~0x00000004;
 	}

 	if (stat1 & 0x00000008) {
 		nv50_disp_intr_vblank(priv, 1);
 		nv_wr32(priv, 0x610024, 0x00000008);
 		stat1 &= ~0x00000008;
 	}

 }

 static int
 nv50_disp_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 		  struct nouveau_oclass *oclass, void *data, u32 size,
 		  struct nouveau_object **pobject)
 {
 	struct nv50_disp_priv *priv;
 	int ret;

 	ret = nouveau_disp_create(parent, engine, oclass, "PDISP",
 				  "display", &priv);
 	*pobject = nv_object(priv);
 	if (ret)
 		return ret;

 	nv_engine(priv)->sclass = nv50_disp_base_oclass;
 	nv_engine(priv)->cclass = &nv50_disp_cclass;
 	nv_subdev(priv)->intr = nv50_disp_intr;
 	priv->sclass = nv50_disp_sclass;
 	priv->head.nr = 2;
 	priv->dac.nr = 3;
 	priv->sor.nr = 2;

 	INIT_LIST_HEAD(&priv->base.vblank.list);
 	spin_lock_init(&priv->base.vblank.lock);
 	return 0;
 }

 struct nouveau_oclass
 nv50_disp_oclass = {
 	.handle = NV_ENGINE(DISP, 0x50),
 	.ofuncs = &(struct nouveau_ofuncs) {
 		.ctor = nv50_disp_ctor,
 		.dtor = _nouveau_disp_dtor,
 		.init = _nouveau_disp_init,
 		.fini = _nouveau_disp_fini,
 	},
 };
	/*
	* 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 <engine/software.h>
	#include <engine/disp.h>

	#include "nv50.h"

	/*******************************************************************************
	* EVO channel common helpers
	******************************************************************************/

	static u32
	nv50_disp_chan_rd32(struct nouveau_object *object, u64 addr)
	{
	return 0xdeadcafe;
	}

	static void
	nv50_disp_chan_wr32(struct nouveau_object *object, u64 addr, u32 data)
	{
	}

	/*******************************************************************************
	* EVO master channel object
	******************************************************************************/

	static int
	nv50_disp_mast_ctor(struct nouveau_object *parent,
	struct nouveau_object *engine,
	struct nouveau_oclass oclass, void data, u32 size,
	struct nouveau_object **pobject)
	{
	struct nv50_disp_chan *chan;
	int ret;

	ret = nouveau_object_create(parent, engine, oclass, 0, &chan);
	*pobject = nv_object(chan);
	if (ret)
	return ret;

	return 0;
	}

	static void
	nv50_disp_mast_dtor(struct nouveau_object *object)
	{
	struct nv50_disp_chan chan = (void )object;
	nouveau_object_destroy(&chan->base);
	}

	static int
	nv50_disp_mast_init(struct nouveau_object *object)
	{
	struct nv50_disp_chan chan = (void )object;
	int ret;

	ret = nouveau_object_init(&chan->base);
	if (ret)
	return ret;

	return 0;
	}

	static int
	nv50_disp_mast_fini(struct nouveau_object *object, bool suspend)
	{
	struct nv50_disp_chan chan = (void )object;
	return nouveau_object_fini(&chan->base, suspend);
	}

	struct nouveau_ofuncs
	nv50_disp_mast_ofuncs = {
	.ctor = nv50_disp_mast_ctor,
	.dtor = nv50_disp_mast_dtor,
	.init = nv50_disp_mast_init,
	.fini = nv50_disp_mast_fini,
	.rd32 = nv50_disp_chan_rd32,
	.wr32 = nv50_disp_chan_wr32,
	};

	/*******************************************************************************
	* EVO DMA channel objects (sync, overlay)
	******************************************************************************/

	static int
	nv50_disp_dmac_ctor(struct nouveau_object *parent,
	struct nouveau_object *engine,
	struct nouveau_oclass oclass, void data, u32 size,
	struct nouveau_object **pobject)
	{
	struct nv50_disp_chan *chan;
	int ret;

	ret = nouveau_object_create(parent, engine, oclass, 0, &chan);
	*pobject = nv_object(chan);
	if (ret)
	return ret;

	return 0;
	}

	static void
	nv50_disp_dmac_dtor(struct nouveau_object *object)
	{
	struct nv50_disp_chan chan = (void )object;
	nouveau_object_destroy(&chan->base);
	}

	static int
	nv50_disp_dmac_init(struct nouveau_object *object)
	{
	struct nv50_disp_chan chan = (void )object;
	int ret;

	ret = nouveau_object_init(&chan->base);
	if (ret)
	return ret;

	return 0;
	}

	static int
	nv50_disp_dmac_fini(struct nouveau_object *object, bool suspend)
	{
	struct nv50_disp_chan chan = (void )object;
	return nouveau_object_fini(&chan->base, suspend);
	}

	struct nouveau_ofuncs
	nv50_disp_dmac_ofuncs = {
	.ctor = nv50_disp_dmac_ctor,
	.dtor = nv50_disp_dmac_dtor,
	.init = nv50_disp_dmac_init,
	.fini = nv50_disp_dmac_fini,
	.rd32 = nv50_disp_chan_rd32,
	.wr32 = nv50_disp_chan_wr32,
	};

	/*******************************************************************************
	* EVO PIO channel objects (cursor, immediate overlay controls)
	******************************************************************************/

	static int
	nv50_disp_pioc_ctor(struct nouveau_object *parent,
	struct nouveau_object *engine,
	struct nouveau_oclass oclass, void data, u32 size,
	struct nouveau_object **pobject)
	{
	struct nv50_disp_chan *chan;
	int ret;

	ret = nouveau_object_create(parent, engine, oclass, 0, &chan);
	*pobject = nv_object(chan);
	if (ret)
	return ret;

	return 0;
	}

	static void
	nv50_disp_pioc_dtor(struct nouveau_object *object)
	{
	struct nv50_disp_chan chan = (void )object;
	nouveau_object_destroy(&chan->base);
	}

	static int
	nv50_disp_pioc_init(struct nouveau_object *object)
	{
	struct nv50_disp_chan chan = (void )object;
	int ret;

	ret = nouveau_object_init(&chan->base);
	if (ret)
	return ret;

	return 0;
	}

	static int
	nv50_disp_pioc_fini(struct nouveau_object *object, bool suspend)
	{
	struct nv50_disp_chan chan = (void )object;
	return nouveau_object_fini(&chan->base, suspend);
	}

	struct nouveau_ofuncs
	nv50_disp_pioc_ofuncs = {
	.ctor = nv50_disp_pioc_ctor,
	.dtor = nv50_disp_pioc_dtor,
	.init = nv50_disp_pioc_init,
	.fini = nv50_disp_pioc_fini,
	.rd32 = nv50_disp_chan_rd32,
	.wr32 = nv50_disp_chan_wr32,
	};

	/*******************************************************************************
	* Base display object
	******************************************************************************/

	static int
	nv50_disp_base_ctor(struct nouveau_object *parent,
	struct nouveau_object *engine,
	struct nouveau_oclass oclass, void data, u32 size,
	struct nouveau_object **pobject)
	{
	struct nv50_disp_priv priv = (void )engine;
	struct nv50_disp_base *base;
	int ret;

	ret = nouveau_parent_create(parent, engine, oclass, 0,
	priv->sclass, 0, &base);
	*pobject = nv_object(base);
	if (ret)
	return ret;

	return 0;
	}

	static void
	nv50_disp_base_dtor(struct nouveau_object *object)
	{
	struct nv50_disp_base base = (void )object;
	nouveau_parent_destroy(&base->base);
	}

	static int
	nv50_disp_base_init(struct nouveau_object *object)
	{
	struct nv50_disp_base base = (void )object;
	int ret;

	ret = nouveau_parent_init(&base->base);
	if (ret)
	return ret;

	/* caps */
	/* intr 100 */
	/* 6194e8 shit */
	/* intr */
	/* set 610010 from engctx */
	/* acquire mast? */
	return 0;
	}

	static int
	nv50_disp_base_fini(struct nouveau_object *object, bool suspend)
	{
	struct nv50_disp_base base = (void )object;
	return nouveau_parent_fini(&base->base, suspend);
	}

	struct nouveau_ofuncs
	nv50_disp_base_ofuncs = {
	.ctor = nv50_disp_base_ctor,
	.dtor = nv50_disp_base_dtor,
	.init = nv50_disp_base_init,
	.fini = nv50_disp_base_fini,
	};

	static struct nouveau_oclass
	nv50_disp_base_oclass[] = {
	{ 0x5070, &nv50_disp_base_ofuncs },
	};

	static struct nouveau_oclass
	nv50_disp_sclass[] = {
	{ 0x507d, &nv50_disp_mast_ofuncs }, /* master */
	{ 0x507c, &nv50_disp_dmac_ofuncs }, /* sync */
	{ 0x507e, &nv50_disp_dmac_ofuncs }, /* overlay */
	{ 0x507b, &nv50_disp_pioc_ofuncs }, /* overlay (pio) */
	{ 0x507a, &nv50_disp_pioc_ofuncs }, /* cursor (pio) */
	{}
	};

	/*******************************************************************************
	* 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 nouveau_object *parent,
	struct nouveau_object *engine,
	struct nouveau_oclass oclass, void data, u32 size,
	struct nouveau_object **pobject)
	{
	struct nouveau_engctx *ectx;
	int ret;

	ret = nouveau_engctx_create(parent, engine, oclass, NULL, 0x10000,
	0x10000, NVOBJ_FLAG_ZERO_ALLOC, &ectx);
	*pobject = nv_object(ectx);
	if (ret)
	return ret;

	return 0;
	}

	struct nouveau_oclass
	nv50_disp_cclass = {
	.handle = NV_ENGCTX(DISP, 0x50),
	.ofuncs = &(struct nouveau_ofuncs) {
	.ctor = nv50_disp_data_ctor,
	.dtor = _nouveau_engctx_dtor,
	.init = _nouveau_engctx_init,
	.fini = _nouveau_engctx_fini,
	.rd32 = _nouveau_engctx_rd32,
	.wr32 = _nouveau_engctx_wr32,
	},
	};

	/*******************************************************************************
	* Display engine implementation
	******************************************************************************/

	static void
	nv50_disp_intr_vblank(struct nv50_disp_priv *priv, int crtc)
	{
	struct nouveau_disp *disp = &priv->base;
	struct nouveau_software_chan chan, temp;
	unsigned long flags;

	spin_lock_irqsave(&disp->vblank.lock, flags);
	list_for_each_entry_safe(chan, temp, &disp->vblank.list, vblank.head) {
	if (chan->vblank.crtc != crtc)
	continue;

	nv_wr32(priv, 0x001704, chan->vblank.channel);
	nv_wr32(priv, 0x001710, 0x80000000 \| chan->vblank.ctxdma);

	if (nv_device(priv)->chipset == 0x50) {
	nv_wr32(priv, 0x001570, chan->vblank.offset);
	nv_wr32(priv, 0x001574, chan->vblank.value);
	} else {
	if (nv_device(priv)->chipset >= 0xc0) {
	nv_wr32(priv, 0x06000c,
	upper_32_bits(chan->vblank.offset));
	}
	nv_wr32(priv, 0x060010, chan->vblank.offset);
	nv_wr32(priv, 0x060014, chan->vblank.value);
	}

	list_del(&chan->vblank.head);
	if (disp->vblank.put)
	disp->vblank.put(disp->vblank.data, crtc);
	}
	spin_unlock_irqrestore(&disp->vblank.lock, flags);

	if (disp->vblank.notify)
	disp->vblank.notify(disp->vblank.data, crtc);
	}

	void
	nv50_disp_intr(struct nouveau_subdev *subdev)
	{
	struct nv50_disp_priv priv = (void )subdev;
	u32 stat1 = nv_rd32(priv, 0x610024);

	if (stat1 & 0x00000004) {
	nv50_disp_intr_vblank(priv, 0);
	nv_wr32(priv, 0x610024, 0x00000004);
	stat1 &= ~0x00000004;
	}

	if (stat1 & 0x00000008) {
	nv50_disp_intr_vblank(priv, 1);
	nv_wr32(priv, 0x610024, 0x00000008);
	stat1 &= ~0x00000008;
	}

	}

	static int
	nv50_disp_ctor(struct nouveau_object parent, struct nouveau_object engine,
	struct nouveau_oclass oclass, void data, u32 size,
	struct nouveau_object **pobject)
	{
	struct nv50_disp_priv *priv;
	int ret;

	ret = nouveau_disp_create(parent, engine, oclass, "PDISP",
	"display", &priv);
	*pobject = nv_object(priv);
	if (ret)
	return ret;

	nv_engine(priv)->sclass = nv50_disp_base_oclass;
	nv_engine(priv)->cclass = &nv50_disp_cclass;
	nv_subdev(priv)->intr = nv50_disp_intr;
	priv->sclass = nv50_disp_sclass;
	priv->head.nr = 2;
	priv->dac.nr = 3;
	priv->sor.nr = 2;

	INIT_LIST_HEAD(&priv->base.vblank.list);
	spin_lock_init(&priv->base.vblank.lock);
	return 0;
	}

	struct nouveau_oclass
	nv50_disp_oclass = {
	.handle = NV_ENGINE(DISP, 0x50),
	.ofuncs = &(struct nouveau_ofuncs) {
	.ctor = nv50_disp_ctor,
	.dtor = _nouveau_disp_dtor,
	.init = _nouveau_disp_init,
	.fini = _nouveau_disp_fini,
	},
	};