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78e434bdc0
Register a PM notifier in virtio-gpu to handle suspend/hibernate events. On PM_POST_HIBERNATION, restore all GPU objects so that the driver can properly recover after resume. Suggested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Cc: Vivek Kasireddy <vivek.kasireddy@intel.com> Signed-off-by: Dongwon Kim <dongwon.kim@intel.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patch.msgid.link/20260526192814.179673-4-dongwon.kim@intel.com [dmitry.osipenko@collabora.com: rename vgdev->hibernation -> hibernated] [dmitry.osipenko@collabora.com: restore objs on suspend error] [dmitry.osipenko@collabora.com: no_cb int -> bool] [dmitry.osipenko@collabora.com: don't include pm_runtime.h] [dmitry.osipenko@collabora.com: proeprly handle failing register_pm_notifier]