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drm/nouveau/gsp/r570: Enable S/R Display workaround in GSP

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There's two flags that we've never been setting when asking GSP to suspend
the GPU, which OpenRM does set:

  GPU_STATE_FLAGS_PRESERVING
  GPU_STATE_FLAGS_PM_TRANSITION

These flags aren't -supposed- to do much in GSP, they're mostly used by
OpenRM itself for state tracking. The only thing they do from GSP's side is
control whether or not a single display related workaround is applied
during suspend.

But as it turns out, that single workaround is actually quite crucial for
getting runtime PM working with nouveau - and without it set we end up
seeing a lot more failures with runtime PM resume. So, let's start setting
it.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Fixes: 53dac06238 ("drm/nouveau/gsp: add support for 570.144")
Cc: <stable@vger.kernel.org> # v6.16+
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: https://patch.msgid.link/20260814194542.781955-4-lyude@redhat.com
(cherry picked from commit ca57629b3e)
Signed-off-by: Lyude Paul <lyude@redhat.com>
This commit is contained in:
Lyude Paul 2026-08-14 15:43:50 -04:00
commit 24fbd6d4bc
2 changed files with 10 additions and 1 deletions
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