drm/i915: Don't update the render-clock for every bo.

Browse source

Only update the render-clock on transition from busy to idle and vice
versa, or else we burn a significant percentage of the cpu just rewriting
the register -- not quite as power-friendly as intended ;-)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>

...

This commit is contained in:

Chris Wilson 2009-11-30 01:08:56 +00:00 • committed by Eric Anholt

parent 38b3037ee4

commit 28cf798f5a

1 changed files with 7 additions and 2 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

9

drivers/gpu/drm/i915/intel_display.c

View file