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author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-12-22 08:36:34 +0000 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-12-28 11:51:52 +0100 |
commit | 9a956b1548794033d5b893d6d6fcc00b197cfc9b (patch) | |
tree | 8b8cfbe1b61e48ac2a8a7aca0620a16bc29fcd15 /include/drm | |
parent | 0b04d474a611e2831d142e246422a03a10998ae1 (diff) | |
download | op-kernel-dev-9a956b1548794033d5b893d6d6fcc00b197cfc9b.zip op-kernel-dev-9a956b1548794033d5b893d6d6fcc00b197cfc9b.tar.gz |
drm: Optimise power-of-two alignments in drm_mm_scan_add_block()
For power-of-two alignments, we can avoid the 64bit divide and do a
simple bitwise add instead.
v2: s/alignment_mask/remainder_mask/
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/20161222083641.2691-32-chris@chris-wilson.co.uk
Diffstat (limited to 'include/drm')
-rw-r--r-- | include/drm/drm_mm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/drm/drm_mm.h b/include/drm/drm_mm.h index 606336f..d6701d5 100644 --- a/include/drm/drm_mm.h +++ b/include/drm/drm_mm.h @@ -110,6 +110,7 @@ struct drm_mm_scan { u64 size; u64 alignment; + u64 remainder_mask; u64 range_start; u64 range_end; |