]> git.baikalelectronics.ru Git - kernel.git/commit
drm/i915: Drain the freed state from the tail of the next commit
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 2 Feb 2017 20:47:41 +0000 (20:47 +0000)
committerChris Wilson <chris@chris-wilson.co.uk>
Mon, 6 Feb 2017 09:25:38 +0000 (09:25 +0000)
commit33860e598db039314391c79d91fcf70d90f3350d
tree2bbe5461c18580a853c817293d37aad49ad382c1
parent249a6e03e1dc1c1164d5c0da0052f8be703dd7b4
drm/i915: Drain the freed state from the tail of the next commit

If we have any residual freed atomic state from earlier commits, flush
the freed list after performing the current modeset. This prevents the
freed list from ever-growing if userspace manages to starve the kernel
threads (i.e. we are never able to run our free state worker and
eventually the system may even oom).

Fixes: 675223972b73 ("drm/i915: Move atomic state free from out of fence release")
Testcase: igt/kms_cursor/legacy/all-pipes-single-bo
Reported-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202204741.18231-1-chris@chris-wilson.co.uk
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
drivers/gpu/drm/i915/intel_display.c