drm/i915: Treat kernel context as initialised
authorChris Wilson <chris@chris-wilson.co.uk>
Fri, 24 Jun 2016 13:55:54 +0000 (14:55 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Fri, 24 Jun 2016 14:02:44 +0000 (15:02 +0100)
commitc7c3c07d16dd51faddeb6ae665d360be030b31b0
treed84e1a76f8280ab70f5716c19d74c234511f123a
parent0cb26a8ed1a61a31a79bb9fd97687fb0a76ce221
drm/i915: Treat kernel context as initialised

The kernel context exists simply as a placeholder and should never be
executed with a render context. It does not need the golden render
state, as that will always be applied to a user context. By skipping the
initialisation we can avoid issues in attempting to program the golden
render context when trying to make the hardware idle.

v2: Rebase

Testcase: igt/drm_module_reload_basic #byt
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95634
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1466776558-21516-3-git-send-email-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_gem_context.c
drivers/gpu/drm/i915/intel_ringbuffer.c