[PATCH] drm/amdgpu/sriov: reject kms open if TDR not finished or failed

[Michel Dänzer]

On 2018-04-26 04:03 AM, Deng, Emily wrote:
> Hi Michel,
>> This seems like a bad idea, as it would cause basically any
>> userspace which wants to use the GPU to fail to start during a GPU
>> reset.
> [Emily] Yes, this is what the change want to do, when driver is doing
> gpu recover or hardware is doing reset, it doesn't want to be
> interrupted, and during the reset any driver open kms is meaningless.

Applications randomly failing to start up during a GPU reset would be
surprising and confusing for the user. The driver needs to handle this
transparently.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer