From 64c58f2c48da85223f0db438fe4854bc3ef24353 Mon Sep 17 00:00:00 2001
From: Oscar Mateo <oscar.mateo@intel.com>
Date: Thu, 3 Jul 2014 16:28:03 +0100
Subject: [PATCH] drm/i915: Generalize ring_space to take a ringbuf

It's simple enough that it doesn't need to know anything about the
engine.

Trivial change.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Reading git-format-patch failed