Commit f4512e65 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nv50: create graph and crypt contexts on demand 



This really needs cleaning up somehow, and probably investigate what's
needed to do this on earlier generations.  NVIDIA do something similar
there too.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 3052be2c

drivers/gpu/drm/nouveau/nouveau_channel.c

+2 −9
Original line number Diff line number Diff line
@@ -112,7 +112,6 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret, 
	struct drm_nouveau_private *dev_priv = dev->dev_private;

	struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;

	struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;

	struct nouveau_crypt_engine *pcrypt = &dev_priv->engine.crypt;

	struct nouveau_channel *chan;

	unsigned long flags;

	int user, ret;
@@ -209,18 +208,12 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret, 
	pfifo->reassign(dev, false);



	/* Create a graphics context for new channel */

	if (dev_priv->card_type < NV_50) {

		ret = pgraph->create_context(chan);

		if (ret) {

			nouveau_channel_put(&chan);

			return ret;

		}



	if (pcrypt->create_context) {

		ret = pcrypt->create_context(chan);

		if (ret) {

			nouveau_channel_put(&chan);

			return ret;

		}

	}



	/* Construct inital RAMFC for new channel */

drivers/gpu/drm/nouveau/nouveau_object.c

+23 −0
Original line number Diff line number Diff line
@@ -634,6 +634,29 @@ nouveau_gpuobj_gr_new(struct nouveau_channel *chan, int class, 
	if (oc->engine == NVOBJ_ENGINE_SW)

		return nouveau_gpuobj_sw_new(chan, class, gpuobj);



	switch (oc->engine) {

	case NVOBJ_ENGINE_GR:

		if (dev_priv->card_type >= NV_50 && !chan->ramin_grctx) {

			struct nouveau_pgraph_engine *pgraph =

				&dev_priv->engine.graph;



			ret = pgraph->create_context(chan);

			if (ret)

				return ret;

		}

		break;

	case NVOBJ_ENGINE_CRYPT:

		if (!chan->crypt_ctx) {

			struct nouveau_crypt_engine *pcrypt =

				&dev_priv->engine.crypt;



			ret = pcrypt->create_context(chan);

			if (ret)

				return ret;

		}

		break;

	}



	ret = nouveau_gpuobj_new(dev, chan,

				 nouveau_gpuobj_class_instmem_size(dev, class),

				 16,