drm/i915: implement a media hang w/a

Browse source

Contrary to the other clock gating w/a in GEN6_UCGCTL1, this one is
actually documented in Bspec, vol1g "GT Interface Registers [SNB]",
Section 1.5.1 "UCGCTL1 - Unit Level Clock Gating Control 1".

Supposedly this can prevent hangs on the media ring.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

This commit is contained in:

Daniel Vetter 2012-04-11 20:42:38 +02:00

parent 767878908e

commit de4a8bd162

2 changed files with 3 additions and 1 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

1

drivers/gpu/drm/i915/i915_reg.h

View file

3

drivers/gpu/drm/i915/intel_display.c

View file