Broadcom Corporation

Apple Inc.

Nintendo Co., Ltd.

Lsi Logic Corporation

Silicon Graphics, Incorporated

Advanced Micro Devices Corporation

Avago Technologies International Sales Pte. Limited

Avago Technologies General IP Pte, Ltd.

Patrick Y Law

Darren Duane Neuman

David A Baer

Robert A Drebin

Keith Alan Cox

James S Ismail

Chuck Monahan

Steven T Jaffe

Brian Francis Schoner

Rajesh Mamidwar

Chengfuh Jeffrey Tang

Greg Alan Kranawetter

Sandeep Bhatia

Iue-Shuenn Chen

Aleksandr M Movshovich

Jason C Demas

Mark M Leather

Gokhan Avkarogullari

Francis Cheung

Brad Albert Delanghe

Ut Nguyen

Hoang Nhu

Tracy C Denk

Shawn Val Johnson

James Douglas Sweet

Yao-Hua Tseng

Guang-Ting Shih

Jeffrey S Bauch

David Chao Hua Wu

Brad Grossman

Dan Simon

Sang Van Tran

Ben Giese

Lakshman Ramakrishnan

Thu T Nguyen

Hsien-Chih Jim Tseng

Jeff Tingley

Mark Leonard Buer

James B Keller

Chaohao Wang

James Han Wang

Paolo Sacchetto

Jean-Pierre Simon Guillou

Gaurav Kapoor

Timothy J Van Hook

Derrick Chu Lin

John Meron Ananny

Amit K Vyas

R Stephen Polzin

Arthur L Spence

Abhinav Pathak

Mohammad Ali Jangda

Richard Warren Schreyer

Zheng Qi

Joseph John Tardo

Yifan Zhang

Christopher Edward Glazowski

Albert S Liu

Paul M Thompson

Alex J Crumlin

Jason P Jane

Keith LaRell Klingler

Derek J DiCarlo

Conor J O'Reilly

Jason Luo Pang

Stephen D Sterz

Rohit Mundra

Roberto Alvarez

Luc R Semeria

Suresh Krishna

Christopher Owen

Michael J E Swift

Shashi K Dua

Udaykumar R Raval

Matthew Komsthoeft

Christopher W Chaney

Vladislav Sahnovich

Howard H Cheng

Warren Fritz Kruger

Jason William Herrick

Robert J Moore

Yoshitaka Yasumoto

Anthony P DeLaurier

Alek Movshovich

Martin Hollis

Phillip Smith

Prajakta S Karandikar

Keith LaRell Klinger

Han Ming Ong

Thomas Fung

Alexander Miretsky

Michael J Wyrzykowski

James Wang

In one embodiment, a system includes power management control that controls a duty cycle of a processor to manage power. The duty cycle may be the amount of time that the processor is powered on as a percentage of the total time. By frequently powering up and powering down the processor during a period of time, the power consumption of the processor may be controlled while providing the perception that the processor is continuously available. For example, the processor may be a graphics processing unit (GPU), and the period of time over which the duty cycle is managed may be a frame to be displayed on the display screen viewed by a user of the system.

Power management for a graphics processing unit or other circuit

Circuits, methods, and apparatus that may estimate the power being consumed by an OLED display screen of an electronic device, may provide further information about that power usage, may modify or change functions performed by the electronic device based on that power usage, and may inform an application's developer about the amount of power being used by the electronic device while the electronic device is running the application. One example may estimate the power being used by an OLED display screen of an electronic device by determining the content of images being displayed during a duration. The estimated power may then be presented to a user. The estimated power may be used in decisions to modify or change parameters of the screen or other device components.

Graphically providing OLED display power modeling

OLED display power modeling

The subject matter of the disclosure relates to low temperature power throttling at a mobile device to reduce the likelihood of an unexpected power down event in cold weather environments. A mobile device employing a power management solution may be configured to determine that a monitored temperature at the mobile device (at the battery of the mobile device) is below a first threshold level, and whether a hardware component (such as a camera) is active or inactive. Then, based on these determinations, the mobile device can select a throttle setting from a first set of throttle settings when the hardware component is active, and a second set of throttle settings when the hardware component is inactive. Subsequently the mobile device can throttle power consumption for one or more components of the mobile device according to the selected throttle setting.

Cold temperature power throttling at a mobile computing device

In one embodiment, a system controls a duty cycle of a processor (e.g. a graphics processing unit (GPU)) to manage power. The GPU may include a snoop indicator that may control whether or not the GPU captures and/or responds to communications from another processor (e.g. a central processing unit (CPU) that executes a driver associate with the GPU). A snooze indicator may control whether or not the GPU is automatically repowered at the start of the next frame, or is repowered only if the communication indicating additional work has been received. In an embodiment, the GPU mode controls discussed above may permit the GPU firmware executed with the GPU itself to control duty cycle power down, independent of the driver executing on the CPU.

Graphics hardware mode controls

Techniques are disclosed relating to handling page faults created by a processor unit. In some embodiments, such techniques may be used within the context of graphics processor units (GPUs) to reduce the chances that a page fault will result in a GPU-pipeline stall. In one embodiment, a processor includes a graphics processor pipeline and a memory management unit. The graphics processor pipeline includes a plurality of pipeline stages. The memory management unit is configured to determine that a first data request from a first of the plurality of pipeline stages causes a page fault, and to service requests from one or more others of the plurality of pipeline stages while the page fault is being serviced.

Non-blocking memory management unit

Systems and methods are disclosed for hardware assisted format changes in a display controller. One embodiment of the invention relates to a format change system comprising a register DMA controller and a register update list. The register update list contains at least one instruction. The register DMA controller is adapted to obtain and use at least one instruction to configure at least one display pipeline from a plurality of display pipelines in response to at least one trigger event.

Hardware assisted format change mechanism in a display controller

In one embodiment, a system includes a power management controller that controls a duty cycle of a processor to manage power. By frequently powering up and powering down the processor during a period of time, the power consumption of the processor may be controlled while providing the perception that the processor is continuously available. Additionally, in some cases, it may be a better power/performance tradeoff to run the processor at a higher power/performance state if the processor is executing for a significant portion of the execution interval (e.g. the frame time for a GPU). Executing at a higher power/performance state may permit a realization of a greater number of frames per second for a given workload, in an embodiment.

GPU with dynamic performance adjustment

Growing community of inventors

Cupertino, CA, United States of America

Patrick Y Law