[Intel-gfx] [PATCH v2 1/6] drm/i915: Add a new "remapped" gtt_view

[Tvrtko Ursulin]

On 15/01/2019 10:58, Chris Wilson wrote:
> Quoting Tvrtko Ursulin (2019-01-14 09:55:10)
>>
>> On 11/01/2019 19:46, Ville Syrjala wrote:
>>> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>>>
>>> To overcome display engine stride limits we'll want to remap the
>>> pages in the GTT. To that end we need a new gtt_view type which
>>> is just like the "rotated" type except not rotated.
>>
>> I think I asked this before, so sorry if you also answered it - what
>> about rotated setups which go over display engine stride limits?
> 
> There's always a task for tomorrow. For such a remapping, I guess we
> want to allow an arbitrary remapping table.
> struct intel_arb_ggtt_view {
> 	unsigned long *indices;
> };

True, nothing here would make that impossible it seems, which was my 
concern when I asked this question.

Btw.. would this make calling this one "tiled" view more future proof? 
Then we would be able to call the arbitrarily remapped view just remapped.

Regards,

Tvrtko