drm: Apply tight eviction scanning to color_adjust
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 22 Dec 2016 08:36:36 +0000 (08:36 +0000)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 28 Dec 2016 12:23:06 +0000 (13:23 +0100)
commit3fa489dabea9a1cb0656e2da90354f7c4e53f890
treeb5780d24e226c04ca8810b3d8aeda15cfa4daf63
parentf29051f12f33078b81ac710bee9ebd7a85ee1849
drm: Apply tight eviction scanning to color_adjust

Using mm->color_adjust makes the eviction scanner much tricker since we
don't know the actual neighbours of the target hole until after it is
created (after scanning is complete). To work out whether we need to
evict the neighbours because they impact upon the hole, we have to then
check the hole afterwards - requiring an extra step in the user of the
eviction scanner when they apply color_adjust.

v2: Massage kerneldoc.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161222083641.2691-34-chris@chris-wilson.co.uk
drivers/gpu/drm/drm_mm.c
drivers/gpu/drm/i915/i915_gem_evict.c
drivers/gpu/drm/selftests/test-drm_mm.c
include/drm/drm_mm.h