From: Maarten Maathuis <madman2003@gmail.com>
Date: Mon, 1 Feb 2010 17:32:09 +0000 (+0100)
Subject: drm/nv50: avoid unloading pgraph context when ctxprog is running
X-Git-Tag: v2.6.33-rc8~14^2~2^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a51a3bf50d41708388f51ce63d965c0e77726eab;p=pandora-kernel.git

drm/nv50: avoid unloading pgraph context when ctxprog is running

- We need to disable pgraph fifo access before checking the current channel,
  otherwise we could still hit a running ctxprog.
- The writes to 0x400500 are already handled by pgraph->fifo_access and are
  therefore redundant, moreover pgraph fifo access should not be reenabled
  before current context is set as invalid. So remove them altogether.

Signed-off-by: Maarten Maathuis <madman2003@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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