Tile-based check values for data content integrity in a GPU subsystem

US10467723B2 · kind B2 · utility

Assignee

• QUALCOMM Incorporated · US

Inventors

• Brendon Lewis Johnson · San Diego, US
• Andrew Evan Gruber · Arlington, US
• Jay Chunsup Yun · Carlsbad, US
• Rahul Gulati · San Diego, US
• Donghyun Kim · Cambridge, US
• Alex Jong · San Diego, US

Key dates

• Filing date: Dec 21, 2017
• Grant date: Nov 5, 2019
• Expiry date: Jan 18, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G09G2380/12
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A graphics processing unit (GPU) of a GPU subsystem of a computing device processes graphics data to produce a plurality of portions of a first image, and to produce a plurality of portions of a second image. The GPU generates a plurality of data integrity check values associated with the plurality of portions of the first image, and a plurality of data integrity check values associated with the plurality of portions of the second image. The GPU determines whether each of the plurality of portions of the second image matches a corresponding portion of the first image. The GPU determines, prior to producing every portion of the second image, whether an operational fault has occurred in the GPU subsystem based at least in part the determination of whether each of the plurality of portions of the second image matches a corresponding portion of the first image.