kernel-fxtec-pro1x/drivers/gpu
Linus Torvalds d7b9935a34 i915: Fix i915 suspend delay
During system suspend, the "wait for ring buffer to empty" loop would
always time out after three seconds, because the faster cached ring
buffer head read would always return zero.  Force the slow-and-careful
PIO read on all but the first iterations of the loop to fix it.

This also removes the unused (and useless) 'actual_head' variable that
tried to approximate doing this, but did it incorrectly.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Dave Airlie <airlied@linux.ie>
Cc: DRI mailing list <dri-devel@lists.freedesktop.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-20 16:18:25 -08:00
..
drm i915: Fix i915 suspend delay 2011-01-20 16:18:25 -08:00
stub ACPI video: remove output switching control 2010-12-14 00:04:52 -05:00
vga vga_switcheroo: comparing too few characters in strncmp() 2011-01-07 15:29:37 +10:00
Makefile gpu: Add Intel GMA500(Poulsbo) Stub Driver 2010-10-26 11:00:13 +10:00