From: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Date: Thu, 11 Jul 2013 21:44:59 +0000 (-0300)
Subject: drm/i915: Added debugfs support for PSR Status
X-Git-Tag: v3.12-rc1~136^2~129^2~43
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e91fd8c6dec2ffa903b4f695fce4b9d7248ed2d5;p=pandora-kernel.git

drm/i915: Added debugfs support for PSR Status

Adding support for PSR Status, PSR entry counter and performance counters.
Heavily based on initial work from Shobhit.

v2: Fix PSR Status Link bits by Paulo Zanoni.
v3: Prefer seq_puts to seq_printf by Paulo Zanoni.
v4: Fix identation by Paulo Zanoni.
v5: Return earlier if it isn't Haswell in order to avoid reading non-existing
    registers - by Paulo Zanoni.

CC: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Credits-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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