diff options
| author |   Thomas Hellström <thomas.hellstrom@linux.intel.com> | 2021-09-22 08:25:24 +0200 |
|---|---|---|
| committer | Thomas Hellström <thomas.hellstrom@linux.intel.com> | 2021-09-24 08:19:15 +0200 |
| commit | 0d8ee5ba8db46c1c833f212a85f8f6d79286722a (patch) | |
| tree | dbfc726f688f144df83d325301573a4c3bdb17fe /drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c | |
| parent | drm/i915/gt: Register the migrate contexts with their engines (diff) | |
| download | linux-dev-0d8ee5ba8db46c1c833f212a85f8f6d79286722a.tar.xz linux-dev-0d8ee5ba8db46c1c833f212a85f8f6d79286722a.zip | |
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
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c index cb1c46724f70..03a00d193f40 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c @@ -60,6 +60,9 @@ static int i915_ttm_backup(struct i915_gem_apply_to_region *apply, if (!pm_apply->backup_pinned) return 0; + if (obj->flags & I915_BO_ALLOC_PM_VOLATILE) + return 0; + backup = i915_gem_object_create_shmem(i915, obj->base.size); if (IS_ERR(backup)) return PTR_ERR(backup); |