drm/i915/bdw: The TLB invalidation mechanism has been removed from INSTPM

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While wandering in the spec, I noticed that BDW removes those 2 bits
from INSTPM. I couldn't find any direct way to invalidate the TLB (ie
without the ring working already). Maybe someone will be more lucky.

At least, we now know we may be a problem.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Damien Lespiau 2014-03-13 01:40:28 +00:00 • committed by Daniel Vetter

parent 065f2ec2af

commit dc616b89db

1 changed files with 8 additions and 2 deletions

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drivers/gpu/drm/i915/intel_ringbuffer.c

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