From 1f7247c01c9d1bdc7b0e239a8f2e256972b9189b Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 30 Sep 2014 10:56:48 +0200
Subject: [PATCH] drm/i915: Add wrappers to handle fifo underrun interrupts

Way too much copypasta all over. And this also clarifies a bit what's
going on since it separates the "do we have an underrun irq" from the
"should we report the underrun" check.

v2: Fix excessively long lines.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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