System and method for assuring the proper operation of a programmable graphics processing unit
US8933934B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2011 |
| Grant date | Jan 13, 2015 |
| Priority date | — |
| Expiry date | Sep 3, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/09
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The system assures the proper operation of a programmable GPU. A list of shader programs is generated. A programmable GPU is instructed to render a set of graphic primitives to generate test image data into a test area of RAM of the GPU utilizing one of the listed programs. The GPU is instructed to combine test image data from the test area with normal image data to form a composite image as display image data. The data in the GPU RAM is output to an image processing unit (IPU), wherein the data is processed by the IPU. The IPU is utilized to apply a CRC algorithm to the test image data to calculate a check value. The calculated value is compared against a predetermined value for the test area. A fault is reported if the calculated check value does not match the predetermined value. These above steps are then repeated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.