From: Kenneth Graunke <kenneth@whitecape.org>
Date: Mon, 27 Jan 2014 22:20:16 +0000 (-0800)
Subject: drm/i915: Add the WaCsStallBeforeStateCacheInvalidate:bdw workaround.
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~124^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=02c9f7e3cfe76a7f54ef03438c36aade86cc1c8b;p=pandora-kernel.git

drm/i915: Add the WaCsStallBeforeStateCacheInvalidate:bdw workaround.

On Broadwell, any PIPE_CONTROL with the "State Cache Invalidate" bit set
must be preceded by a PIPE_CONTROL with the "CS Stall" bit set.

Documented on the BSpec 3D workarounds page.

Reviewed-by: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
[vsyrjala: add chv w/a note too]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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