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linux/drivers/gpu/drm/selftests
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Chris Wilson bbba969317 drm: Micro-optimise drm_mm_for_each_node_in_range() 
As we require valid start/end parameters, we can replace the initial
potential NULL with a pointer to the drm_mm.head_node and so reduce the
test on every iteration from a NULL + address comparison to just an
address comparison.

add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-26 (-26)
function                                     old     new   delta
i915_gem_evict_for_node                      719     693     -26

(No other users outside of the test harness.)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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/20170204111913.12416-1-chris@chris-wilson.co.uk
2017-02-06 16:57:37 +01:00
..
drm_mm_selftests.h drm: kselftest for drm_mm and bottom-up allocation 2017-02-03 11:36:49 +01:00
drm_selftest.c
drm_selftest.h
Makefile drm: Fix O= out-of-tree builds for selftests 2016-12-28 11:34:57 +01:00
test-drm_mm.c drm: Micro-optimise drm_mm_for_each_node_in_range() 2017-02-06 16:57:37 +01:00