tree dbfc726f688f144df83d325301573a4c3bdb17fe
parent 3e42cc61275f95fd7f022b6380b95428efe134d3
author Thomas Hellström <thomas.hellstrom@linux.intel.com> 1632291924 +0200
committer Thomas Hellström <thomas.hellstrom@linux.intel.com> 1632464355 +0200

drm/i915: Don't back up pinned LMEM context images and rings during suspend

Pinned context images are now reset during resume. Don't back them up,
and assuming that rings can be assumed empty at suspend, don't back them
up either.

Introduce a new object flag, I915_BO_ALLOC_PM_VOLATILE meaning that an
object is allowed to lose its content on suspend.

v3:
- Slight documentation clarification (Matthew Auld)

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210922062527.865433-7-thomas.hellstrom@linux.intel.com