drm/virtio: Freeze and restore hooks to support suspend and resume

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virtio device needs to delete before VM suspend happens
then reinitialize all virtqueues again upon resume

Suggested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Cc: Nirmoy Das <nirmoyd@nvidia.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Tested-by: Morris Pan <morris.pan@mediatek.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patch.msgid.link/20260526192814.179673-2-dongwon.kim@intel.com
[dmitry.osipenko@collabora.com: add missed drm_mode_config_helper_resume()]
[dmitry.osipenko@collabora.com: cosmetic change to virtio_gpu_wait_queue()]
[dmitry.osipenko@collabora.com: improve error messages]

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This commit is contained in:

Dongwon Kim 2026-05-26 12:28:12 -07:00 • committed by Dmitry Osipenko

parent c453c60fdb

commit cad6a879a7

4 changed files with 103 additions and 7 deletions

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71

drivers/gpu/drm/virtio/virtgpu_drv.c

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2

drivers/gpu/drm/virtio/virtgpu_drv.h

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23

drivers/gpu/drm/virtio/virtgpu_kms.c

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14

drivers/gpu/drm/virtio/virtgpu_vq.c

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