[Intel-gfx] [PATCH 2/2] drm/i915: Program FW_BLC_SELF on 915G as well

[Chris Wilson]

On Fri, Jul 29, 2016 at 05:57:02PM +0300, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> According to Bspec FW_BLC_SELF exists on 915G also. Let's program it.

Indeed, it is there, and looks mostly the same as 915gm.

> The only open question is whether there's is a memory self-refresh
> enable bit somewhere as well. For 945G/GM it's in FW_BLC_SELF, for
> 915GM it's in INSTPM. For 915G I can't find one in the docs. Let's drop
> a FIXME about this, in case someone with the hardware is ever bored
> enough to look for it.

It looks like a 915/945 split, so my bet would be on INSTPM as well.
> 
> Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre