[Intel-gfx] [PATCH 3/3] drm/i915/region: convert object_create into object_init

[Chris Wilson]

Quoting Matthew Auld (2021-01-14 18:24:02)
> Give more flexibility to the caller, if they already have an allocated
> object, in case they wish to apply some transformation to the object
> prior to handing it over to the region specific initialisation step,
> like in gem_create_ext where we would like to first apply the extensions
> to the object.

I notice that we need to include userptr and the mock objects in
INTEL_MEMORY_SYSTEM for better bookkeeping.
 
> Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris