[Intel-gfx] [PATCH] drm/i915: Use a global lock for modifying global irq flags

[Ben Widawsky]

On Tue, 24 Apr 2012 21:48:47 +0100
Chris Wilson <chris at chris-wilson.co.uk> wrote:

> We were attempting to use a per-ring spinlock whilst modifying global
> IRQ flags. A recipe for rare missed interrupts.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

Regardless of whether or not this currently fixes anything, I need this
for an upcoming patch.

Acked-by: Ben Widawsky <ben at bwidawsk.net>