From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Date: Fri, 1 Aug 2014 09:04:45 +0000 (-0700)
Subject: drm/i915: Introduce FBC False Color for debug purposes.
X-Git-Tag: fixes-against-v3.18-rc2~73^2~78^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=da46f936bb0396f6a0fb87c2786f541e9f19a73c;p=pandora-kernel.git

drm/i915: Introduce FBC False Color for debug purposes.

With this bit enabled, HW changes the color when compressing frames for
debug purposes.

ALthough the simple way to enable a single bit is over intel_reg_write,
this value is overwriten on next update_fbc so depending on the workload
it is not possible to set this bit with intel-gpu-tools. So this patch
introduces a persistent way to enable false color over debugfs.

v2: Use DEFINE_SIMPLE_ATTRIBUTE as Daniel suggested
v3: (Ville) only do false color for IVB+ since according to spec bit is
    MBZ before IVB.
v4: We don't have FBC on valleyview nor on cherryview (Ben)
v5: s/!HAS_PCH_SPLIT/!HAS_FBC (Ville)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

Reading git-diff-tree failed