[Intel-gfx] [PATCH 4/4] drm/i915: ILK + VT-d workaround

[Paul Menzel]

Am Montag, den 17.10.2011, 15:51 -0700 schrieb Ben Widawsky:
> Idle the GPU before doing any unmaps. We know if VT-d is in use through
> an exported variable from iommu code.
> 
> This should avoid a known HW issue.

Please describe the issue more in detail or provide a link to more
information.

> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
> ---
>  drivers/char/agp/intel-gtt.c        |   28 ++++++++++++++++++++++++++++
>  drivers/gpu/drm/i915/i915_gem_gtt.c |   30 ++++++++++++++++++++++++++++++
>  include/drm/intel-gtt.h             |    2 ++
>  3 files changed, 60 insertions(+), 0 deletions(-)

[…]


Thanks,

Paul
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