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Commit ab403ac9 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nv31/mpeg: remove need for separate refcnt on engine use 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent b449a43f

drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.c

+21 −18
Original line number Diff line number Diff line
@@ -137,18 +137,23 @@ nv31_mpeg_context_ctor(struct nouveau_object *parent, 
{

	struct nv31_mpeg_priv *priv = (void *)engine;

	struct nv31_mpeg_chan *chan;

	unsigned long flags;

	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;



	spin_lock_irqsave(&nv_engine(priv)->lock, flags);

	if (priv->chan) {

		spin_unlock_irqrestore(&nv_engine(priv)->lock, flags);

		nouveau_object_destroy(&chan->base);

		*pobject = NULL;

		return -EBUSY;

	}

	priv->chan = chan;



	spin_unlock_irqrestore(&nv_engine(priv)->lock, flags);

	return 0;

}
@@ -157,11 +162,12 @@ nv31_mpeg_context_dtor(struct nouveau_object *object) 
{

	struct nv31_mpeg_priv *priv = (void *)object->engine;

	struct nv31_mpeg_chan *chan = (void *)object;

	unsigned long flags;



	WARN_ON(priv->chan != chan);

	spin_lock_irqsave(&nv_engine(priv)->lock, flags);

	priv->chan = NULL;

	spin_unlock_irqrestore(&nv_engine(priv)->lock, flags);

	nouveau_object_destroy(&chan->base);

	atomic_dec(&priv->refcount);

}



struct nouveau_oclass
@@ -193,20 +199,19 @@ nv31_mpeg_tile_prog(struct nouveau_engine *engine, int i) 
void

nv31_mpeg_intr(struct nouveau_subdev *subdev)

{

	struct nv31_mpeg_priv *priv = (void *)subdev;

	struct nouveau_fifo *pfifo = nouveau_fifo(subdev);

	struct nouveau_handle *handle;

	struct nv31_mpeg_priv *priv = (void *)subdev;

	struct nouveau_object *engctx = &priv->chan->base;

	struct nouveau_object *engctx;

	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;

	int chid = pfifo->chid(pfifo, engctx);

	unsigned long flags;



	if (engctx)

		if (nouveau_object_inc(engctx))

			engctx = NULL;

	spin_lock_irqsave(&nv_engine(priv)->lock, flags);

	engctx = nv_object(priv->chan);



	if (stat & 0x01000000) {

		/* happens on initial binding of the object */
@@ -227,14 +232,12 @@ nv31_mpeg_intr(struct nouveau_subdev *subdev) 
	nv_wr32(priv, 0x00b230, 0x00000001);



	if (show) {

		nv_error(priv,

			 "ch %d [%s] 0x%08x 0x%08x 0x%08x 0x%08x\n",

			 chid, nouveau_client_name(engctx), stat,

			 type, mthd, data);

		nv_error(priv, "ch %d [%s] 0x%08x 0x%08x 0x%08x 0x%08x\n",

			 pfifo->chid(pfifo, engctx),

			 nouveau_client_name(engctx), stat, type, mthd, data);

	}



	if (engctx)

		WARN_ON(nouveau_object_dec(engctx, false));

	spin_unlock_irqrestore(&nv_engine(priv)->lock, flags);

}



static int

drivers/gpu/drm/nouveau/core/engine/mpeg/nv31.h

+0 −1
Original line number Diff line number Diff line
@@ -9,7 +9,6 @@ struct nv31_mpeg_chan { 


struct nv31_mpeg_priv {

	struct nouveau_mpeg base;

	atomic_t refcount;

	struct nv31_mpeg_chan *chan;

};