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drm/nv50: let the card handle the initial context switch 

Our PFIFO/PGRAPH context save/load functions don't really work well
(at all?) on nv5x yet.  Depending on what random state the card is
in before the drm loads, fbcon probably won't work correctly.

Luckily we've setup the GPU in such a way that it'll actually do a
hw context switch for the first context.  Not sure of how successful
this'd be currently on the older chips (actually, pretty sure it won't
work), so NV50 only for now.
main
Ben Skeggs 2009-02-10 08:57:21 +10:00
parent 9c8d634e68
commit 889b811e31
1 changed files with 2 additions and 1 deletions
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3
shared-core/nouveau_fifo.c
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@ -362,7 +362,8 @@ nouveau_fifo_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
/* If this is the first channel, setup PFIFO ourselves. For any
* other case, the GPU will handle this when it switches contexts.
*/
if (dev_priv->fifo_alloc_count == 1) {
if (dev_priv->card_type < NV_50 &&
dev_priv->fifo_alloc_count == 1) {
ret = engine->fifo.load_context(chan);
if (ret) {
nouveau_fifo_free(chan);