[Intel-xe] [PATCH 3/3] drm/xe: NULL binding implementation

[Niranjana Vishwanathapura]

On Wed, Jun 07, 2023 at 10:03:33PM -0700, Matthew Brost wrote:
>Add uAPI and implementation for NULL bindings. A NULL binding is defined
>as writes dropped and read zero. A single bit in the uAPI has been added
>which results in a single bit in the PTEs being set.
>
>NULL bindings are indended to be used to implement VK sparse bindings,
>in particular residencyNonResidentStrict property.
>
>Suggested-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
>Signed-off-by: Matthew Brost <matthew.brost at intel.com>

Also, do we have IGT tests for this?

Niranjana