[deliverable/linux.git] / drivers / gpu / drm / nouveau / core / engine / mpeg / nv31.c

/*
 * 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 <core/os.h>
#include <core/class.h>
#include <core/engctx.h>
#include <core/handle.h>
#include <core/engine/graph/nv40.h>

#include <subdev/fb.h>
#include <subdev/timer.h>
#include <subdev/instmem.h>

#include <engine/mpeg.h>

struct nv31_mpeg_priv {
	struct nouveau_mpeg base;
	atomic_t refcount;
};

struct nv31_mpeg_chan {
	struct nouveau_object base;
};

/*******************************************************************************
 * MPEG object classes
 ******************************************************************************/

static int
nv31_mpeg_object_ctor(struct nouveau_object *parent,
		      struct nouveau_object *engine,
		      struct nouveau_oclass *oclass, void *data, u32 size,
		      struct nouveau_object **pobject)
{
	struct nouveau_gpuobj *obj;
	int ret;

	ret = nouveau_gpuobj_create(parent, engine, oclass, 0, parent,
				    20, 16, 0, &obj);
	*pobject = nv_object(obj);
	if (ret)
		return ret;

	nv_wo32(obj, 0x00, nv_mclass(obj));
	nv_wo32(obj, 0x04, 0x00000000);
	nv_wo32(obj, 0x08, 0x00000000);
	nv_wo32(obj, 0x0c, 0x00000000);
	return 0;
}

static int
nv31_mpeg_mthd_dma(struct nouveau_object *object, u32 mthd, void *arg, u32 len)
{
	struct nouveau_instmem *imem = nouveau_instmem(object);
	struct nv31_mpeg_priv *priv = (void *)object->engine;
	u32 inst = *(u32 *)arg << 4;
	u32 dma0 = nv_ro32(imem, inst + 0);
	u32 dma1 = nv_ro32(imem, inst + 4);
	u32 dma2 = nv_ro32(imem, inst + 8);
	u32 base = (dma2 & 0xfffff000) | (dma0 >> 20);
	u32 size = dma1 + 1;

	/* only allow linear DMA objects */
	if (!(dma0 & 0x00002000))
		return -EINVAL;

	if (mthd == 0x0190) {
		/* DMA_CMD */
		nv_mask(priv, 0x00b300, 0x00030000, (dma0 & 0x00030000));
		nv_wr32(priv, 0x00b334, base);
		nv_wr32(priv, 0x00b324, size);
	} else
	if (mthd == 0x01a0) {
		/* DMA_DATA */
		nv_mask(priv, 0x00b300, 0x000c0000, (dma0 & 0x00030000) << 2);
		nv_wr32(priv, 0x00b360, base);
		nv_wr32(priv, 0x00b364, size);
	} else {
		/* DMA_IMAGE, VRAM only */
		if (dma0 & 0x000c0000)
			return -EINVAL;

		nv_wr32(priv, 0x00b370, base);
		nv_wr32(priv, 0x00b374, size);
	}

	return 0;
}

struct nouveau_ofuncs
nv31_mpeg_ofuncs = {
	.ctor = nv31_mpeg_object_ctor,
	.dtor = _nouveau_gpuobj_dtor,
	.init = _nouveau_gpuobj_init,
	.fini = _nouveau_gpuobj_fini,
	.rd32 = _nouveau_gpuobj_rd32,
	.wr32 = _nouveau_gpuobj_wr32,
};

struct nouveau_omthds
nv31_mpeg_omthds[] = {
	{ 0x0190, nv31_mpeg_mthd_dma },
	{ 0x01a0, nv31_mpeg_mthd_dma },
	{ 0x01b0, nv31_mpeg_mthd_dma },
	{}
};

struct nouveau_oclass
nv31_mpeg_sclass[] = {
	{ 0x3174, &nv31_mpeg_ofuncs, nv31_mpeg_omthds },
	{}
};

/*******************************************************************************
 * PMPEG context
 ******************************************************************************/

static int
nv31_mpeg_context_ctor(struct nouveau_object *parent,
		       struct nouveau_object *engine,
		       struct nouveau_oclass *oclass, void *data, u32 size,
		       struct nouveau_object **pobject)
{
	struct nv31_mpeg_priv *priv = (void *)engine;
	struct nv31_mpeg_chan *chan;
	int ret;

	if (!atomic_add_unless(&priv->refcount, 1, 1))
		return -EBUSY;

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

	return 0;
}

static void
nv31_mpeg_context_dtor(struct nouveau_object *object)
{
	struct nv31_mpeg_priv *priv = (void *)object->engine;
	struct nv31_mpeg_chan *chan = (void *)object;
	atomic_dec(&priv->refcount);
	nouveau_object_destroy(&chan->base);
}

static struct nouveau_oclass
nv31_mpeg_cclass = {
	.handle = NV_ENGCTX(MPEG, 0x31),
	.ofuncs = &(struct nouveau_ofuncs) {
		.ctor = nv31_mpeg_context_ctor,
		.dtor = nv31_mpeg_context_dtor,
		.init = nouveau_object_init,
		.fini = nouveau_object_fini,
	},
};

/*******************************************************************************
 * PMPEG engine/subdev functions
 ******************************************************************************/

void
nv31_mpeg_tile_prog(struct nouveau_engine *engine, int i)
{
	struct nouveau_fb_tile *tile = &nouveau_fb(engine)->tile.region[i];
	struct nv31_mpeg_priv *priv = (void *)engine;

	nv_wr32(priv, 0x00b008 + (i * 0x10), tile->pitch);
	nv_wr32(priv, 0x00b004 + (i * 0x10), tile->limit);
	nv_wr32(priv, 0x00b000 + (i * 0x10), tile->addr);
}

void
nv31_mpeg_intr(struct nouveau_subdev *subdev)
{
	struct nv31_mpeg_priv *priv = (void *)subdev;
	struct nouveau_engine *engine = nv_engine(subdev);
	struct nouveau_handle *handle = NULL;
	u32 inst = (nv_rd32(priv, 0x00b318) & 0x000fffff) << 4;
	u32 stat = nv_rd32(priv, 0x00b100);
	u32 type = nv_rd32(priv, 0x00b230);
	u32 mthd = nv_rd32(priv, 0x00b234);
	u32 data = nv_rd32(priv, 0x00b238);
	u32 show = stat;

	if (stat & 0x01000000) {
		/* happens on initial binding of the object */
		if (handle && type == 0x00000020 && mthd == 0x0000) {
			nv_mask(priv, 0x00b308, 0x00000000, 0x00000000);
			show &= ~0x01000000;
		}

		if (handle && type == 0x00000010) {
			handle = nouveau_engctx_lookup_class(engine, inst, 0x3174);

			if (handle && !nv_call(handle->object, mthd, data)) {
				nouveau_engctx_handle_put(handle);
				show &= ~0x01000000;
			}
		}
	}

	nv_wr32(priv, 0x00b100, stat);
	nv_wr32(priv, 0x00b230, 0x00000001);

	if (show) {
		nv_error(priv, "ch %d [0x%08x] 0x%08x 0x%08x 0x%08x 0x%08x\n",
			 inst, stat, type, mthd, data);
	}
}

static int
nv31_mpeg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
	       struct nouveau_oclass *oclass, void *data, u32 size,
	       struct nouveau_object **pobject)
{
	struct nv31_mpeg_priv *priv;
	int ret;

	ret = nouveau_mpeg_create(parent, engine, oclass, &priv);
	*pobject = nv_object(priv);
	if (ret)
		return ret;

	nv_subdev(priv)->unit = 0x00000002;
	nv_subdev(priv)->intr = nv31_mpeg_intr;
	nv_engine(priv)->cclass = &nv31_mpeg_cclass;
	nv_engine(priv)->sclass = nv31_mpeg_sclass;
	nv_engine(priv)->tile_prog = nv31_mpeg_tile_prog;
	return 0;
}

int
nv31_mpeg_init(struct nouveau_object *object)
{
	struct nouveau_engine *engine = nv_engine(object->engine);
	struct nv31_mpeg_priv *priv = (void *)engine;
	struct nouveau_fb *pfb = nouveau_fb(object);
	int ret, i;

	ret = nouveau_mpeg_init(&priv->base);
	if (ret)
		return ret;

	/* VPE init */
	nv_wr32(priv, 0x00b0e0, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
	nv_wr32(priv, 0x00b0e8, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */

	for (i = 0; i < pfb->tile.regions; i++)
		engine->tile_prog(engine, i);

	/* PMPEG init */
	nv_wr32(priv, 0x00b32c, 0x00000000);
	nv_wr32(priv, 0x00b314, 0x00000100);
	nv_wr32(priv, 0x00b220, nv44_graph_class(priv) ? 0x00000044 : 0x00000031);
	nv_wr32(priv, 0x00b300, 0x02001ec1);
	nv_mask(priv, 0x00b32c, 0x00000001, 0x00000001);

	nv_wr32(priv, 0x00b100, 0xffffffff);
	nv_wr32(priv, 0x00b140, 0xffffffff);

	if (!nv_wait(priv, 0x00b200, 0x00000001, 0x00000000)) {
		nv_error(priv, "timeout 0x%08x\n", nv_rd32(priv, 0x00b200));
		return -EBUSY;
	}

	return 0;
}

struct nouveau_oclass
nv31_mpeg_oclass = {
	.handle = NV_ENGINE(MPEG, 0x31),
	.ofuncs = &(struct nouveau_ofuncs) {
		.ctor = nv31_mpeg_ctor,
		.dtor = _nouveau_mpeg_dtor,
		.init = nv31_mpeg_init,
		.fini = _nouveau_mpeg_fini,
	},
};
Commit	Line	Data
a02ccc7f	1	/*
ebb945a9	2	* Copyright 2012 Red Hat Inc.
a02ccc7f BS	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* Authors: Ben Skeggs
	23	*/
	24
ebb945a9 BS	25	#include <core/os.h>
	26	#include <core/class.h>
	27	#include <core/engctx.h>
	28	#include <core/handle.h>
	29	#include <core/engine/graph/nv40.h>
a02ccc7f	30
ebb945a9 BS	31	#include <subdev/fb.h>
	32	#include <subdev/timer.h>
	33	#include <subdev/instmem.h>
52d07331	34
ebb945a9	35	#include <engine/mpeg.h>
a02ccc7f	36
ebb945a9 BS	37	struct nv31_mpeg_priv {
	38	struct nouveau_mpeg base;
	39	atomic_t refcount;
	40	};
a02ccc7f	41
ebb945a9 BS	42	struct nv31_mpeg_chan {
	43	struct nouveau_object base;
	44	};
a02ccc7f	45
ebb945a9 BS	46	/*******************************************************************************
	47	* MPEG object classes
	48	******************************************************************************/
a02ccc7f BS	49
a02ccc7f BS	50	static int
ebb945a9 BS	51	nv31_mpeg_object_ctor(struct nouveau_object *parent,
	52	struct nouveau_object *engine,
	53	struct nouveau_oclass oclass, void data, u32 size,
	54	struct nouveau_object **pobject)
a02ccc7f	55	{
ebb945a9	56	struct nouveau_gpuobj *obj;
a02ccc7f BS	57	int ret;
a02ccc7f BS	58
ebb945a9 BS	59	ret = nouveau_gpuobj_create(parent, engine, oclass, 0, parent,
	60	20, 16, 0, &obj);
	61	*pobject = nv_object(obj);
a02ccc7f BS	62	if (ret)
a02ccc7f BS	63	return ret;
a02ccc7f	64
ebb945a9 BS	65	nv_wo32(obj, 0x00, nv_mclass(obj));
	66	nv_wo32(obj, 0x04, 0x00000000);
	67	nv_wo32(obj, 0x08, 0x00000000);
	68	nv_wo32(obj, 0x0c, 0x00000000);
a02ccc7f BS	69	return 0;
	70	}
	71
	72	static int
ebb945a9	73	nv31_mpeg_mthd_dma(struct nouveau_object object, u32 mthd, void arg, u32 len)
a02ccc7f	74	{
ebb945a9 BS	75	struct nouveau_instmem *imem = nouveau_instmem(object);
	76	struct nv31_mpeg_priv priv = (void )object->engine;
	77	u32 inst = (u32 )arg << 4;
	78	u32 dma0 = nv_ro32(imem, inst + 0);
	79	u32 dma1 = nv_ro32(imem, inst + 4);
	80	u32 dma2 = nv_ro32(imem, inst + 8);
a02ccc7f BS	81	u32 base = (dma2 & 0xfffff000) \| (dma0 >> 20);
	82	u32 size = dma1 + 1;
	83
	84	/* only allow linear DMA objects */
	85	if (!(dma0 & 0x00002000))
	86	return -EINVAL;
	87
	88	if (mthd == 0x0190) {
	89	/* DMA_CMD */
ebb945a9 BS	90	nv_mask(priv, 0x00b300, 0x00030000, (dma0 & 0x00030000));
	91	nv_wr32(priv, 0x00b334, base);
	92	nv_wr32(priv, 0x00b324, size);
a02ccc7f BS	93	} else
	94	if (mthd == 0x01a0) {
	95	/* DMA_DATA */
ebb945a9 BS	96	nv_mask(priv, 0x00b300, 0x000c0000, (dma0 & 0x00030000) << 2);
	97	nv_wr32(priv, 0x00b360, base);
	98	nv_wr32(priv, 0x00b364, size);
a02ccc7f BS	99	} else {
	100	/* DMA_IMAGE, VRAM only */
	101	if (dma0 & 0x000c0000)
	102	return -EINVAL;
	103
ebb945a9 BS	104	nv_wr32(priv, 0x00b370, base);
ebb945a9 BS	105	nv_wr32(priv, 0x00b374, size);
a02ccc7f BS	106	}
	107
	108	return 0;
	109	}
	110
ebb945a9 BS	111	struct nouveau_ofuncs
	112	nv31_mpeg_ofuncs = {
	113	.ctor = nv31_mpeg_object_ctor,
	114	.dtor = _nouveau_gpuobj_dtor,
	115	.init = _nouveau_gpuobj_init,
	116	.fini = _nouveau_gpuobj_fini,
	117	.rd32 = _nouveau_gpuobj_rd32,
	118	.wr32 = _nouveau_gpuobj_wr32,
	119	};
	120
	121	struct nouveau_omthds
	122	nv31_mpeg_omthds[] = {
	123	{ 0x0190, nv31_mpeg_mthd_dma },
	124	{ 0x01a0, nv31_mpeg_mthd_dma },
	125	{ 0x01b0, nv31_mpeg_mthd_dma },
	126	{}
	127	};
	128
	129	struct nouveau_oclass
	130	nv31_mpeg_sclass[] = {
	131	{ 0x3174, &nv31_mpeg_ofuncs, nv31_mpeg_omthds },
	132	{}
	133	};
	134
	135	/*******************************************************************************
	136	* PMPEG context
	137	******************************************************************************/
	138
a02ccc7f	139	static int
ebb945a9 BS	140	nv31_mpeg_context_ctor(struct nouveau_object *parent,
	141	struct nouveau_object *engine,
	142	struct nouveau_oclass oclass, void data, u32 size,
	143	struct nouveau_object **pobject)
a02ccc7f	144	{
ebb945a9 BS	145	struct nv31_mpeg_priv priv = (void )engine;
	146	struct nv31_mpeg_chan *chan;
	147	int ret;
	148
	149	if (!atomic_add_unless(&priv->refcount, 1, 1))
	150	return -EBUSY;
	151
	152	ret = nouveau_object_create(parent, engine, oclass, 0, &chan);
	153	*pobject = nv_object(chan);
	154	if (ret)
	155	return ret;
	156
	157	return 0;
a02ccc7f BS	158	}
	159
	160	static void
ebb945a9	161	nv31_mpeg_context_dtor(struct nouveau_object *object)
a02ccc7f	162	{
ebb945a9 BS	163	struct nv31_mpeg_priv priv = (void )object->engine;
	164	struct nv31_mpeg_chan chan = (void )object;
	165	atomic_dec(&priv->refcount);
	166	nouveau_object_destroy(&chan->base);
a02ccc7f BS	167	}
a02ccc7f BS	168
ebb945a9 BS	169	static struct nouveau_oclass
	170	nv31_mpeg_cclass = {
	171	.handle = NV_ENGCTX(MPEG, 0x31),
	172	.ofuncs = &(struct nouveau_ofuncs) {
	173	.ctor = nv31_mpeg_context_ctor,
	174	.dtor = nv31_mpeg_context_dtor,
	175	.init = nouveau_object_init,
	176	.fini = nouveau_object_fini,
	177	},
	178	};
	179
	180	/*******************************************************************************
	181	* PMPEG engine/subdev functions
	182	******************************************************************************/
	183
	184	void
	185	nv31_mpeg_tile_prog(struct nouveau_engine *engine, int i)
a02ccc7f	186	{
ebb945a9 BS	187	struct nouveau_fb_tile *tile = &nouveau_fb(engine)->tile.region[i];
	188	struct nv31_mpeg_priv priv = (void )engine;
	189
	190	nv_wr32(priv, 0x00b008 + (i * 0x10), tile->pitch);
	191	nv_wr32(priv, 0x00b004 + (i * 0x10), tile->limit);
	192	nv_wr32(priv, 0x00b000 + (i * 0x10), tile->addr);
	193	}
	194
	195	void
	196	nv31_mpeg_intr(struct nouveau_subdev *subdev)
	197	{
	198	struct nv31_mpeg_priv priv = (void )subdev;
	199	struct nouveau_engine *engine = nv_engine(subdev);
	200	struct nouveau_handle *handle = NULL;
	201	u32 inst = (nv_rd32(priv, 0x00b318) & 0x000fffff) << 4;
	202	u32 stat = nv_rd32(priv, 0x00b100);
	203	u32 type = nv_rd32(priv, 0x00b230);
	204	u32 mthd = nv_rd32(priv, 0x00b234);
	205	u32 data = nv_rd32(priv, 0x00b238);
a02ccc7f BS	206	u32 show = stat;
	207
	208	if (stat & 0x01000000) {
	209	/* happens on initial binding of the object */
ebb945a9 BS	210	if (handle && type == 0x00000020 && mthd == 0x0000) {
ebb945a9 BS	211	nv_mask(priv, 0x00b308, 0x00000000, 0x00000000);
a02ccc7f BS	212	show &= ~0x01000000;
	213	}
	214
ebb945a9 BS	215	if (handle && type == 0x00000010) {
	216	handle = nouveau_engctx_lookup_class(engine, inst, 0x3174);
	217
	218	if (handle && !nv_call(handle->object, mthd, data)) {
	219	nouveau_engctx_handle_put(handle);
a02ccc7f	220	show &= ~0x01000000;
ebb945a9	221	}
a02ccc7f BS	222	}
	223	}
	224
ebb945a9 BS	225	nv_wr32(priv, 0x00b100, stat);
ebb945a9 BS	226	nv_wr32(priv, 0x00b230, 0x00000001);
a02ccc7f	227
ebb945a9 BS	228	if (show) {
	229	nv_error(priv, "ch %d [0x%08x] 0x%08x 0x%08x 0x%08x 0x%08x\n",
	230	inst, stat, type, mthd, data);
a02ccc7f BS	231	}
	232	}
	233
ebb945a9 BS	234	static int
	235	nv31_mpeg_ctor(struct nouveau_object parent, struct nouveau_object engine,
	236	struct nouveau_oclass oclass, void data, u32 size,
	237	struct nouveau_object **pobject)
a02ccc7f	238	{
ebb945a9 BS	239	struct nv31_mpeg_priv *priv;
ebb945a9 BS	240	int ret;
a02ccc7f	241
ebb945a9 BS	242	ret = nouveau_mpeg_create(parent, engine, oclass, &priv);
	243	*pobject = nv_object(priv);
	244	if (ret)
	245	return ret;
	246
	247	nv_subdev(priv)->unit = 0x00000002;
	248	nv_subdev(priv)->intr = nv31_mpeg_intr;
	249	nv_engine(priv)->cclass = &nv31_mpeg_cclass;
	250	nv_engine(priv)->sclass = nv31_mpeg_sclass;
	251	nv_engine(priv)->tile_prog = nv31_mpeg_tile_prog;
	252	return 0;
a02ccc7f BS	253	}
a02ccc7f BS	254
ebb945a9 BS	255	int
ebb945a9 BS	256	nv31_mpeg_init(struct nouveau_object *object)
a02ccc7f	257	{
ebb945a9 BS	258	struct nouveau_engine *engine = nv_engine(object->engine);
	259	struct nv31_mpeg_priv priv = (void )engine;
	260	struct nouveau_fb *pfb = nouveau_fb(object);
	261	int ret, i;
a02ccc7f	262
ebb945a9 BS	263	ret = nouveau_mpeg_init(&priv->base);
	264	if (ret)
	265	return ret;
a02ccc7f	266
ebb945a9 BS	267	/* VPE init */
	268	nv_wr32(priv, 0x00b0e0, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
	269	nv_wr32(priv, 0x00b0e8, 0x00000020); /* nvidia: rd 0x01, wr 0x20 */
a02ccc7f	270
ebb945a9 BS	271	for (i = 0; i < pfb->tile.regions; i++)
	272	engine->tile_prog(engine, i);
	273
	274	/* PMPEG init */
	275	nv_wr32(priv, 0x00b32c, 0x00000000);
	276	nv_wr32(priv, 0x00b314, 0x00000100);
	277	nv_wr32(priv, 0x00b220, nv44_graph_class(priv) ? 0x00000044 : 0x00000031);
	278	nv_wr32(priv, 0x00b300, 0x02001ec1);
	279	nv_mask(priv, 0x00b32c, 0x00000001, 0x00000001);
	280
	281	nv_wr32(priv, 0x00b100, 0xffffffff);
	282	nv_wr32(priv, 0x00b140, 0xffffffff);
	283
	284	if (!nv_wait(priv, 0x00b200, 0x00000001, 0x00000000)) {
	285	nv_error(priv, "timeout 0x%08x\n", nv_rd32(priv, 0x00b200));
	286	return -EBUSY;
52d07331	287	}
a02ccc7f	288
ebb945a9	289	return 0;
a02ccc7f	290	}
ebb945a9 BS	291
	292	struct nouveau_oclass
	293	nv31_mpeg_oclass = {
	294	.handle = NV_ENGINE(MPEG, 0x31),
	295	.ofuncs = &(struct nouveau_ofuncs) {
	296	.ctor = nv31_mpeg_ctor,
	297	.dtor = _nouveau_mpeg_dtor,
	298	.init = nv31_mpeg_init,
	299	.fini = _nouveau_mpeg_fini,
	300	},
	301	};