Ati Technologies Ulc

Intel Corporation

Advanced Micro Devices Corporation

Advanced Micro Devices (shanghai) Co., Ltd.

Xiaowei Wang

Yinan Jiang

Kun Tian

Anthony Asaro

Jeffrey Gongxian Cheng

Zhiyuan Lv

Ahmed M Abdelkhalek

Andy Sung

Kelly Donald Clark Zytaruk

LingFei Liu

Jiajun Xu

Sidney D Fortes

Guangwen Yang

An apparatus and method are described for intelligent cloud based testing of graphics hardware and software. For example, one embodiment of an apparatus comprises: a hardware pool comprising a plurality of test machines to perform cloud-based graphics validation operations; a virtual resource pool comprising data associated a plurality of different graphics hardware resources; a resource manager to coordinate between the hardware pool and the virtual resource pool to cause one or more virtual machines (VMs) to be executed on one or more of the test machines using resources from the virtual resource pool; and a task dispatcher to dispatch graphics validation tasks to the VMs responsive to user input.

Apparatus and method for cloud-based graphics validation

A technique for recovering from a hang in a virtualized accelerated processing device ('APD') is provided. In the virtualization scheme, different virtual machines are assigned different 'time-slices' in which to use the APD. When a time-slice expires, the APD stops operations for a current VM and starts operations for another VM. To stop operations on the APD, a virtualization scheduler sends a request to idle the APD. The APD responds by completing work and idling. If one or more portions of the APD do not complete this idling process before a timeout expires, then a hang occurs. In response to the hang, the virtualization scheduler informs the hypervisor that a hang has occurred. The hypervisor performs a function level reset on the APD and informs the VM that the hang has occurred. The VM responds by stopping command issue to the APD and re-initializing the APD for the function.

Hang detection for virtualized accelerated processing device

A request is sent from a new virtual function (VF) to a physical function for requesting the initialization of the new VF. The controlling physical function and the new VF establish a two-way communication channel that to start and end the VF's exclusive accesses to registers in a configuration space. The physical function uses a timing control to monitor that exclusive register access by the new VF is completed within a predetermined time period. The new VF is only granted a predetermined time period of exclusive access to complete its initialization process. If the exclusive access period is timed out, the controlling physical function can terminate the VF to prevent GPU stalls.

Exclusive access to shared registers in virtualized systems

Growing community of inventors

Shanghai, China

Xiaowei Wang