Method and apparatus for centralized timestamp processing

Patent metadata

Field	Value
Publication number	US-8959296-B2
Application number	US-201113324394-A
Country	US
Kind code	B2
Filing date	Dec 13, 2011
Priority date	Dec 13, 2011
Publication date	Feb 17, 2015
Grant date	Feb 17, 2015

Abstract

Method and apparatus for centralized timestamp processing is described herein. A graphics processing system includes multiple graphics engines and a timestamp module. For each task, a graphics driver assigns the task to a graphics engine and writes a task command packet to a memory buffer associated with the graphics engine. The graphics driver also writes a timestamp command packet for each task to a timestamp module memory buffer. A command processor associated with the graphics engine signals the timestamp module memory buffer upon completion of the task. If the read pointer is at the appropriate position in the timestamp module memory buffer, the timestamp module/timestamp module memory buffer executes the timestamp command packet and writes the timestamp to a timestamp memory. The timestamp memory is accessible by the graphics driver.

First claim

What is claimed is:

1. A system, comprising:
a processor including multiple processing engines, each engine having a memory buffer;
the processor including at least one command processor associated with the multiple processing engines;
a timestamp module having a corresponding timestamp memory buffer, wherein the at least one command processor is configured to signal the timestamp module upon completion of a task stored in an associated memory buffer; and
a timestamp memory…

Assignees

• Truong Pat
• Ati Technologies Ulc

Inventors

• Truong Pat

Classifications

• H04N21/8547

  Electricity · mapped topic

• H04N21/42607 Primary

  Electricity · mapped topic