From: Damien Lespiau <damien.lespiau@intel.com>
Date: Thu, 13 Mar 2014 01:40:28 +0000 (+0000)
Subject: drm/i915/bdw: The TLB invalidation mechanism has been removed from INSTPM
X-Git-Tag: v3.15-rc1~51^2~18^2~47
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dc616b89dbc4bb6a99884d214bd1ed1e0eef59a0;p=pandora-kernel.git

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

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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