Re: [PATCH] drm/virtio: add definition for venus capset

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On 9/21/23 00:16, Dmitry Osipenko wrote:
> On 9/15/23 13:59, Huang Rui wrote:
>> This definition is used fro qemu, and qemu imports this marco in the
>> headers to enable venus for virtio gpu. So it should add it even kernel
>> doesn't use this.
>>
>> Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
>> ---
>>
>> Hi all,
>>
>> We would like to add a new definition for venus capset, it will be used for
>> qemu. Please see details on below discussion:
>>
>> https://lore.kernel.org/qemu-devel/b82982aa-5b9e-481e-9491-b9313877bcaa@xxxxxxxxxx/
>>
>> Thanks,
>> Ray
>>
>>  include/uapi/linux/virtio_gpu.h | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h
>> index f556fde07b76..0e21f3998108 100644
>> --- a/include/uapi/linux/virtio_gpu.h
>> +++ b/include/uapi/linux/virtio_gpu.h
>> @@ -309,6 +309,8 @@ struct virtio_gpu_cmd_submit {
>>  
>>  #define VIRTIO_GPU_CAPSET_VIRGL 1
>>  #define VIRTIO_GPU_CAPSET_VIRGL2 2
>> +/* 3 is reserved for gfxstream */
>> +#define VIRTIO_GPU_CAPSET_VENUS 4
> 
> Could you please add all other capsets, so we won't needed to do it
> again in the future

I've opened request to update virtio-spec with the corrected/updated
capsets https://github.com/oasis-tcs/virtio-spec/issues/182. I'm
expecting that it will take some time until spec change will be merged
and now leaning to apply this v1 patch to not hold the Venus work.

Gerd, do you have objections? R-b/ack?

-- 
Best regards,
Dmitry




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