[Nouveau] NV_PFIFO_INTR_DMA_PUSHER

[Pekka Paalanen]

On Mon, 04 Jan 2010 21:46:51 +0100
Krzysztof Smiechowicz <deadwood at wp.pl> wrote:

> Hello,
> 
> Could someone briefly describe (or point me to the documentation)
> what can be a reason for getting NV_PFIFO_INTR_DMA_PUSHER status 
> (nouveau_fifo_irq_handler).

The command stream put into a FIFO has a certain packet format.
The pusher interrupt says the given stream is corrupt, the format
is broken.

This is either a code bug (e.g. BEGIN_RING with incorrect number of
following commands), or (as in this case apparently) data
corruption.

That's all I think I know.

-- 
Pekka Paalanen
http://www.iki.fi/pq/