From: Dongwon Kim <dongwon....@intel.com> This patch series introduces a freeze and restore mechanism for the virtio-gpu driver:
First patch adds `virtgpu_freeze` and `virtgpu_restore` functions. These functions handle the deletion of virtio queues before suspension and their recreation during the restoration process. Second patch implements a mechanism for restoring `virtio_gpu_object` instances. This is necessary because the host (QEMU) deletes all associated resources during the virtio-gpu reset, which occurs as part of the restoration process. These changes ensure that the virtio-gpu driver can properly handle suspend and resume scenarios without resource loss. Dongwon Kim (2): drm/virtio: Freeze and restore hooks to support suspend and resume drm/virtio: Implement save and restore for virtio_gpu_objects drivers/gpu/drm/virtio/virtgpu_drv.c | 65 +++++++++++++++++++++- drivers/gpu/drm/virtio/virtgpu_drv.h | 11 ++++ drivers/gpu/drm/virtio/virtgpu_kms.c | 24 ++++++--- drivers/gpu/drm/virtio/virtgpu_object.c | 72 +++++++++++++++++++++++++ 4 files changed, 165 insertions(+), 7 deletions(-) -- 2.34.1
