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    • Gerd Hoffmann's avatar
      drm/virtio: rework resource creation workflow. · 530b2842
      Gerd Hoffmann authored
      
      This patch moves the virtio_gpu_cmd_create_resource() call (which
      notifies the host about the new resource created) into the
      virtio_gpu_object_create() function.  That way we can call
      virtio_gpu_cmd_create_resource() before ttm_bo_init(), so the host
      already knows about the object when ttm initializes the object and calls
      our driver callbacks.
      
      Specifically the object is already created when the
      virtio_gpu_ttm_tt_bind() callback invokes virtio_gpu_object_attach(),
      so the extra virtio_gpu_object_attach() calls done after
      virtio_gpu_object_create() are not needed any more.
      
      The fence support for the create ioctl becomes a bit more tricky though.
      The code moved into virtio_gpu_object_create() too.  We first submit the
      (fenced) virtio_gpu_cmd_create_resource() command, then initialize the
      ttm object, and finally attach just created object to the fence for the
      command in case it didn't finish yet.
      
      Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
      Acked-by: default avatarNoralf Trønnes <noralf@tronnes.org>
      Link: http://patchwork.freedesktop.org/patch/msgid/20190318113332.10900-6-kraxel@redhat.com
      530b2842
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