17936809. On-Demand Regulation of Memory Bandwidth Utilization to Service Requirements of Display simplified abstract (ADVANCED MICRO DEVICES, INC.)

On-Demand Regulation of Memory Bandwidth Utilization to Service Requirements of Display

Organization Name

ADVANCED MICRO DEVICES, INC.

Inventor(s)

Ashish Jain of Austin TX (US)

Shang Yang of Markham (CA)

Jun Lei of Markham (CA)

Gia Tung Phan of Markham (CA)

Oswin Hall of Markham (CA)

Benjamin Tsien of Santa Clara CA (US)

Narendra Kamat of Santa Clara CA (US)

On-Demand Regulation of Memory Bandwidth Utilization to Service Requirements of Display - A simplified explanation of the abstract

This abstract first appeared for US patent application 17936809 titled 'On-Demand Regulation of Memory Bandwidth Utilization to Service Requirements of Display

Simplified Explanation

The patent application describes systems, apparatuses, and methods for prefetching data by a display controller in order to sustain a desired quality of service for a display during performance-state changes of a memory subsystem.

• Memory clock frequency is changed during performance-state changes of a memory subsystem storing frame buffer(s) used to drive pixels to a display device.
• Memory accesses may be temporarily blocked during performance-state changes, leading to potential disruptions in display quality.
• Display controller is configured to prefetch data in advance of performance-state changes to ensure a smooth display experience.
• Bandwidth reduction circuitry in clients of the system are configured to temporarily reduce memory bandwidth to accommodate the prefetching process.

Potential Applications

This technology can be applied in various display systems, such as monitors, TVs, and digital signage, to ensure uninterrupted and high-quality display performance during memory subsystem changes.

Problems Solved

1. Disruptions in display quality during memory subsystem performance-state changes. 2. Ensuring a smooth and uninterrupted display experience for users.

Benefits

1. Improved display quality and performance during memory subsystem changes. 2. Enhanced user experience with seamless display transitions. 3. Efficient utilization of memory bandwidth for prefetching data.

Potential Commercial Applications

"Enhancing Display Performance Through Prefetching Technology"

Possible Prior Art

There may be prior art related to memory bandwidth optimization techniques in display systems, but specific examples are not provided in the patent application.

Unanswered Questions

How does the prefetching process impact overall system performance?

The patent application does not delve into the potential effects of prefetching data on the overall performance of the system. It would be interesting to know if there are any trade-offs or limitations associated with this technology.

Are there any specific requirements for the memory subsystem to support prefetching?

The patent application does not mention any specific requirements for the memory subsystem to enable prefetching. It would be helpful to understand if there are any hardware or software prerequisites for implementing this technology effectively.

Original Abstract Submitted

Systems, apparatuses, and methods for prefetching data by a display controller. From time to time, a performance-state change of a memory are performed. During such changes, a memory clock frequency is changed for a memory subsystem storing frame buffer(s) used to drive pixels to a display device. During the performance-state change, memory accesses may be temporarily blocked. To sustain a desired quality of service for the display, a display controller is configured to prefetch data in advance of the performance-state change. In order to ensure the display controller has sufficient memory bandwidth to accomplish the prefetch, bandwidth reduction circuitry in clients of the system are configured to temporarily reduce memory bandwidth of corresponding clients.