drm/i915/gvt: Do not allocate initial ring scan buffer

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Theoretically, the largest bulk of commands in the ring buffer of an
engine might be the first submission, which usually contains a lot
of commands to initialize the HW. After removing the initial allocation
of the ring scan buffer and let krealloc() do everything we need, we
still have a big chance to get the buffer of suitable size in the first
submission.

Tested on my SKL NUC.

Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>

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Zhi Wang 2017-09-10 22:01:10 +08:00 • committed by Zhenyu Wang

parent 325eb94a33

commit 8652a8aca6

2 changed files with 0 additions and 22 deletions

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21

drivers/gpu/drm/i915/gvt/execlist.c

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1

drivers/gpu/drm/i915/gvt/gvt.h

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