Diverse redundancy approach for safety critical applications

A corresponding and data-integrity technology, applied in the direction of image processing hardware details, processor architecture/configuration, image analysis, etc., can solve problems such as image data violations of security goals

Pending Publication Date: 2020-08-04
QUALCOMM INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Failure to display correct image data may result in viol

Method used

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  • Diverse redundancy approach for safety critical applications
  • Diverse redundancy approach for safety critical applications
  • Diverse redundancy approach for safety critical applications

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Embodiment Construction

[0020] Examples of the present disclosure relate to techniques, structures, and apparatus for ensuring hardware, memory, and data content integrity of a GPU subsystem by detecting operational failures of the GPU subsystem using diverse redundancy methods. The GPU of the GPU subsystem may perform the same graphics operation (eg, an operation for rendering or generally producing an image) twice to render an image while it is operating in a different rendering mode. The computing device may compare the rendered images generated by the GPU subsystem, and if the rendered images generated by the GPU subsystem do not match, it may determine that a failure has occurred in the GPU subsystem. The techniques of this disclosure may be applied to automotive display systems, avionics display systems, or any other GPU subsystem where it is beneficial to ensure that image data that is intended to be displayed is actually displayed.

[0021] Computing devices configured to perform the techniqu...

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Abstract

A graphics processing unit (GPU) of a GPU subsystem of a computing device operates in a first rendering mode to process graphics data to produce a first image. The GPU operates in a second rendering mode to process the graphics data to produce a second image. The computing device detects whether a fault has occurred in the GPU subsystem based at least in part on comparing the first image with thesecond image.

Description

[0001] Priority claim under 35 U.S.C. §119 [0002] This patent application claims priority to non-provisional application Ser. No. 15 / 850,967, filed December 21, 2017, entitled "DIVERSE REDUNDANCY APPROACH FOR SAFETY CRITICAL APPLICATIONS" , which patent application is assigned to the assignee of the present application and is hereby expressly incorporated herein by reference. technical field [0003] The present disclosure relates to testing of graphics processing unit (GPU) subsystems for safety-critical applications. Background technique [0004] A graphics processing unit (GPU) is a processing circuit configured to perform multiple operations in parallel, and is useful for graphics operations that generate image data for display. GPUs are used in a variety of environments including automobiles. For example, the GPU generates image content such as that displayed on the dashboard behind the steering wheel, used as warning indicators, related to infotainment screens, fr...

Claims

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Application Information

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IPC IPC(8): G06T1/20
CPCG06T1/20G06T7/001G06T7/97G06F11/2236G06F11/277G06T2207/30168G06T2200/28G06T7/0002
Inventor A·K·H·容J·C·云金东炫R·古拉堤B·L·约翰逊A·E·格鲁贝尔
Owner QUALCOMM INC
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