[Intel-gfx] [PATCH 2/2] drm/i915: Eliminate HAS_HW_CONTEXTS

[Chris Wilson]

On Thu, Apr 27, 2017 at 05:36:55PM +0300, Ville Syrjälä wrote:
> On Thu, Apr 27, 2017 at 04:41:33PM +0300, Joonas Lahtinen wrote:
> > According to Chris i915_gem_sanitize was meant to reset ILK too.
> 
> In that case drawing the line before g4x might make more sense
> since it already has a GPU reset that doesn't clobber the display.

The initial reasoning for the cutoff was anything that used contexts for
real. We do want to extend it to everything that we can realiably reset.
One step at a time.
 
> > 
> > CCID register existed already on ILK according to the PRM (Chris
> > verified the address to match too).
> 
> I think it has existed since forever actually. Well, not sure about
> gen0-1.

Hmm, didn't realise that (or completely forgot). Logical contexts exist
for gen2/3 as well. Enabling for g4x+ might be fun.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre