From: Ben Widawsky <ben@bwidawsk.net>
Date: Mon, 30 Jun 2014 16:53:42 +0000 (-0700)
Subject: drm/i915: semaphore debugfs
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~125^2~49^2~55
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e04934cf256154fd6cc88a0767e45bd1b4920419;p=pandora-kernel.git

drm/i915: semaphore debugfs

Simple debugfs file to display the current state of semaphores. This is
useful if you want to see the state without hanging the GPU.

NOTE: This patch is optional to the series.

NOTE2: Like the GPU error state collection, the reads are currently
incoherent.

v2 (Rodrigo): * Iterate only on active rings.
   	      * s/ring_buffer/engine_cs.

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

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