drm/i915/ttm: enable shmem tt backend

Turn on the shmem tt backend, and enable shrinking.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211018091055.1998191-8-matthew.auld@intel.com
This commit is contained in:
Matthew Auld 2021-10-18 10:10:55 +01:00
commit 5d12ffe6be