Intel Corporation

John L Reid

Baiju V Patel

Bryant E Bigbee

Hong Wang

Prashant Sethi

Gautham N Chinya

John Thomas Shen

Richard A Hankins

Shivnandan D Kaushik

Xiang Chris Zou

Jason W Brandt

Anil Aggarwal

Gilbert A Neiger

Ittai Anati

James B Crossland

Dion Rodgers

Michael Mishaeli

James Paul Held

Chris J Newburn

Don Alan Van Dyke

Will Deutsch

Muhammad Faisal Azeem

Per H Hammarlund

Scott Dion Rodgers

Krishnan Rajamani

Douglas M Carmean

Trung Am Diep

Rajesh R Shah

Sanjiv M Shah

Ryan N Rakvic

Harley D Johnson

Wells A Brimhall

James Charles Abel

David K Poulsen

Shiv Kaushik

Venkatakrishna Yellepeddy

Dhiraj Bhatt

Rajesh R Sha

Steven C Lo

Lynette A Castlevetro

Venkat U Yellepeddy

Embodiments of the invention provide a method of creating, based on an operating-system-scheduled thread running on an operating-system-visible sequencer and using an instruction set extension, a persistent user-level thread to run on an operating-system-sequestered sequencer independently of context switch activities on the operating-system-scheduled thread. The operating-system-scheduled thread and the persistent user-level thread may share a common virtual address space. Embodiments of the invention may also provide a method of causing a service thread running on an additional operating-system-visible sequencer to provide operating system services to the persistent user-level thread. Embodiments of the invention may further provide apparatus, system, and machine-readable medium thereof.

Apparatus, system, and method for persistent user-level thread

Embodiments of an invention related to context state management based on processor features are disclosed. In one embodiment, a processor includes instruction logic and state management logic. The instruction logic is to receive a state management instruction having a parameter to identify a subset of the features supported by the processor. The state management logic is to perform a state management operation specified by the state management instruction.

Context state management for processor feature sets

Operating system services are transparently triggered for thread execution resources ('sequencers') that are sequestered from view of the operating system. A 'surrogate' thread that is managed by, and visible to, the operating system is utilized to acquire OS services on behalf of a sequestered sequencer. Multi-shred contention for shred-specific resources may thus be alleviated. Other embodiments are also described and claimed.

Transparent support for operating system services for a sequestered sequencer

Method, apparatus and system embodiments to provide user-level creation, control and synchronization of OS-invisible 'shreds' of execution via an abstraction layer for a system that includes one or more sequencers that are sequestered from operating system control. For at least one embodiment, the abstraction layer provides sequestration logic, proxy execution logic, transition detection and shred suspension logic, and sequencer arithmetic logic. Other embodiments are also described and claimed.

Mechanism to emulate user-level multithreading on an OS-sequestered sequencer

Disclosed are embodiments of a system, methods and mechanism for management and translation of mapping between logical sequencer addresses and physical or logical sequencers in a multi-sequencer multithreading system. A mapping manager may manage assignment and mapping of logical sequencer addresses or pages to actual sequencers or frames of the system. Rationing logic associated with the mapping manager may take into account sequencer attributes when such mapping is performed Relocation logic associated with the mapping manager may manage spill and fill of context information to/from a backing store when re-mapping actual sequencers. Sequencers may be allocated singly, or may be allocated as part of partitioned blocks. The mapping manager may also include translation logic that provides an identifier for the mapped sequencer each time a logical sequencer address is used in a user program. Other embodiments are also described and claimed.

Sequencer address management

Two applications running on the same or different processor-based systems may share a class. In some embodiments, the shared class may be shared out of shared memory. In addition, the object defined member data that is process specific may be duplicated in the address space of each program that uses the object.

Sharing classes between programs

A wireless keyboard may be provided with a guard protocol which prevents unintended typematics. An alive signal may be periodically generated to advise a host processor-based system that the keyboard communication link is still effective. If the host processor-based system receives a key make signal but does not receive a break signal or an alive signal, the processor-based system may deduce that the link has gone inactive, and may generate its own break signal. This avoids unnecessary power consumption and unnecessary typematics.

Typematic guard protocol for wireless keyboards

In one embodiment, an operating system may assign a product ID to the game controller that matches the product ID provided with or for the game controller.

Method of identifying game controllers in multi-player game

An apparatus and method for asynchronous compression of video information in a computer system. The apparatus includes data structures and functions for specifying synchronous or asynchronous compression of at least one uncompressed video frame, for specifying latency in the compression of the at least one uncompressed video frame, for initiating asynchronous compression of the at least one uncompressed video frame by a video compressor, for asynchronously retrieving from the video compressor at least one compressed video frame, for terminating asynchronous compression of the at least one uncompressed video frames by the video compressor, and for immediately retrieving from the video compressor the at least one compressed video frame when the at least one compressed video frame remains unretrieved after asynchronous compression is terminated.

Video compression interface

Growing community of inventors

Portland, OR, United States of America

John L Reid