drm/i915: Fix semaphore emission for BDW+ RCS ringbuffer emission

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The required number of dwords for semaphore emission on BDW RCS is 8,
not 6 - leading to ring buffer corruption and immediate GPU hangs when
using ringbuffer submission.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170324151724.32640-2-chris@chris-wilson.co.uk
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>

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This commit is contained in:

Chris Wilson 2017-03-24 15:17:24 +00:00

parent e02d9d76bf

commit 6f9b850bec

1 changed files with 1 additions and 1 deletions

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drivers/gpu/drm/i915/intel_ringbuffer.c

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