[Intel-gfx] [PATCH] drm/i915: Respect ring_mask and num_pipes when install IRQ

[Joonas Lahtinen]

On to, 2016-12-08 at 18:46 +0800, Wang Elaine wrote:
> > From: Elaine Wang <elaine.wang at intel.com>
> 
> Some platforms only have VCS ring in VDBox. To avoid accessing the
> non-existent rings or display registers, check the ring_mask
> and num_pipes in gen8 IRQ install and reset functions.
> 
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Signed-off-by: Elaine Wang <elaine.wang at intel.com>

Looks like a sensible thing to me, not able to test myself. Could use
an R-b from Ville.

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation