tree 219aab8667b8d964ee9c7053f1dc61bb14760238
parent 34c998b4ebf6c48154c76ea9bc9bffabd91a8af2
author Chris Wilson <chris@chris-wilson.co.uk> 1470293545 +0100
committer Chris Wilson <chris@chris-wilson.co.uk> 1470294557 +0100

drm/i915: Store owning file on the i915_address_space

For the global GTT (and aliasing GTT), the address space is owned by the
device (it is a global resource) and so the per-file owner field is
NULL. For per-process GTT (where we create an address space per
context), each is owned by the opening file. We can use this ownership
information to both distinguish GGTT and ppGTT address spaces, as well
as occasionally inspect the owner.

v2: Whitespace, tells us who owns i915_address_space

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470293567-10811-6-git-send-email-chris@chris-wilson.co.uk