From: Ben Widawsky <ben@bwidawsk.net>
Date: Fri, 25 May 2012 23:56:25 +0000 (-0700)
Subject: drm/i915: l3 parity sysfs interface
X-Git-Tag: v3.6-rc1~83^2~47^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=84bc758124127a5b16b30f9a8bf5f1a981affc6b;p=pandora-kernel.git

drm/i915: l3 parity sysfs interface

Dumb binary interfaces which allow root-only updates of the cache
remapping registers. As mentioned in a previous patch, software using
this interface needs to know about HW limits, and other programming
considerations as the kernel interface does no checking for these things
on the root-only interface.

v1: Drop extra posting reads (Chris)
Return negative values in the sysfs interfaces on errors (Chris)

v2: Return -EINVAL for offset % 4 (Jesse)
Move schizo userspace check out (Jesse)
Cleaner sysfs item initializers (Daniel)

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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