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| author | Gurchetan Singh <gurchetansingh@chromium.org> | 2020-09-23 17:32:10 -0700 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2020-09-29 11:23:45 +0200 |
| commit | 1e2554f49e41d3f6509c6a633e5e4dd48d93ffb9 (patch) | |
| tree | 86b6b26e13664a482f823b7d97e9208ce6dc56b6 /drivers/gpu | |
| parent | 0b0f1afe6cff06cf51a1435aa0089ce335df00b5 (diff) | |
| download | linux-1e2554f49e41d3f6509c6a633e5e4dd48d93ffb9.tar.bz2 | |
drm/virtio: implement blob resources: refactor UUID code somewhat
For upcoming blob resources, userspace can specify that the
resource will be used for cross-device sharing. This is mainly
for exportable blobs that will only shared with the virtgpu
display but not across devices.
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Acked-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-15-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_drv.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_prime.c | 42 |
2 files changed, 31 insertions, 13 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index e1143a00017c..bbbe28f8b943 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -432,6 +432,8 @@ bool virtio_gpu_is_shmem(struct virtio_gpu_object *bo); int virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev, uint32_t *resid); /* virtgpu_prime.c */ +int virtio_gpu_resource_assign_uuid(struct virtio_gpu_device *vgdev, + struct virtio_gpu_object *bo); struct dma_buf *virtgpu_gem_prime_export(struct drm_gem_object *obj, int flags); struct drm_gem_object *virtgpu_gem_prime_import(struct drm_device *dev, diff --git a/drivers/gpu/drm/virtio/virtgpu_prime.c b/drivers/gpu/drm/virtio/virtgpu_prime.c index 3552db128ba3..1ef1e2f22633 100644 --- a/drivers/gpu/drm/virtio/virtgpu_prime.c +++ b/drivers/gpu/drm/virtio/virtgpu_prime.c @@ -59,6 +59,24 @@ const struct virtio_dma_buf_ops virtgpu_dmabuf_ops = { .get_uuid = virtgpu_virtio_get_uuid, }; +int virtio_gpu_resource_assign_uuid(struct virtio_gpu_device *vgdev, + struct virtio_gpu_object *bo) +{ + int ret; + struct virtio_gpu_object_array *objs; + + objs = virtio_gpu_array_alloc(1); + if (!objs) + return -ENOMEM; + + virtio_gpu_array_add_obj(objs, &bo->base.base); + ret = virtio_gpu_cmd_resource_assign_uuid(vgdev, objs); + if (ret) + return ret; + + return 0; +} + struct dma_buf *virtgpu_gem_prime_export(struct drm_gem_object *obj, int flags) { @@ -66,22 +84,20 @@ struct dma_buf *virtgpu_gem_prime_export(struct drm_gem_object *obj, struct drm_device *dev = obj->dev; struct virtio_gpu_device *vgdev = dev->dev_private; struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj); - struct virtio_gpu_object_array *objs; int ret = 0; + bool blob = bo->host3d_blob || bo->guest_blob; DEFINE_DMA_BUF_EXPORT_INFO(exp_info); - if (vgdev->has_resource_assign_uuid) { - objs = virtio_gpu_array_alloc(1); - if (!objs) - return ERR_PTR(-ENOMEM); - virtio_gpu_array_add_obj(objs, &bo->base.base); - - ret = virtio_gpu_cmd_resource_assign_uuid(vgdev, objs); - if (ret) - return ERR_PTR(ret); - virtio_gpu_notify(vgdev); - } else { - bo->uuid_state = STATE_ERR; + if (!blob) { + if (vgdev->has_resource_assign_uuid) { + ret = virtio_gpu_resource_assign_uuid(vgdev, bo); + if (ret) + return ERR_PTR(ret); + + virtio_gpu_notify(vgdev); + } else { + bo->uuid_state = STATE_ERR; + } } exp_info.ops = &virtgpu_dmabuf_ops.ops; |