[PATCH 0/3] Handle aborted suspend better

[Mario Limonciello <superm1@kernel.org>]

From: Mario Limonciello <mario.limonciello@amd.com>

Chris Bainbridge reported some list corruption occurring around the
suspend sequence when an aborted suspend occurs.

I couldn't reproduce this specific problem, but when I tried I found
some other issues where the cached DM state isn't properly destroyed.

This is because there isn't a complete() callback to match the prepare()
callback used by amdgpu. Normally the PM core will call complete() after
every suspend attempt (succesful or not).

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/4280

Mario Limonciello (3):
  drm/amd: Add support for a complete pmops action
  drm/amd/display: Stop storing failures into adev->dm.cached_state
  drm/amd/display: Destroy cached state in complete() callback

 drivers/gpu/drm/amd/amdgpu/amdgpu.h           |   1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c    |  22 +++
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c       |   2 +-
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 125 +++++++++++-------
 drivers/gpu/drm/amd/include/amd_shared.h      |   1 +
 5 files changed, 103 insertions(+), 48 deletions(-)

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2.43.0