Invoking externally assisted calls from an isolated environment

Details Invoking externally assisted calls from an isolated environment Invoking externally assisted calls from an isolated environment

2011-04-26

2011-04-26

Phan, Man (Department: 2475)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

Reexamination Certificate

active

07934063

ABSTRACT:
A method of invoking power processor element (PPE) serviced C library functions on a synergistic processing element (SPE) running in isolated mode. When the SPE initiates a PPE-serviced function, an SPE stub routine allocates a parameter buffer in an open area of a local store (LS) memory within the SPE. The LS memory includes an open area accessible to the PPE, and an isolated area inaccessible to the PPE. The SPE stub routine copies function parameters corresponding to the PPE-serviced function to a buffer within the open area of the LS memory, and writes a message word, which contains an identification variable of the PPE-serviced function and a location variable of the function parameters, to the open area. When execution is temporarily suspended on the SPE, the PPE reads the message word from the open area of the LS memory and executes the PPE-serviced function.

REFERENCES:
patent: 4683549 (1987-07-01), Takaki
patent: 5142683 (1992-08-01), Burkhardt et al.
patent: 5146593 (1992-09-01), Brandle et al.
patent: 5463735 (1995-10-01), Pascucci et al.
patent: 5615263 (1997-03-01), Takahashi
patent: 5630059 (1997-05-01), Brady et al.
patent: 5708830 (1998-01-01), Stein
patent: 5901309 (1999-05-01), Hammer et al.
patent: 6032186 (2000-02-01), Hernandez et al.
patent: 6032244 (2000-02-01), Moudgill
patent: 6124868 (2000-09-01), Asaro et al.
patent: 6230284 (2001-05-01), Lillevold
patent: 6233613 (2001-05-01), Walker et al.
patent: 6308223 (2001-10-01), Opgenoorth
patent: 6321323 (2001-11-01), Nugroho et al.
patent: 6424627 (2002-07-01), Sorhaug et al.
patent: 6633564 (2003-10-01), Steer et al.
patent: 6662297 (2003-12-01), Boom et al.
patent: 6704863 (2004-03-01), Paul et al.
patent: 6738850 (2004-05-01), Lai et al.
patent: 6754223 (2004-06-01), Lussier et al.
patent: 6782445 (2004-08-01), Olgiati et al.
patent: 6804239 (2004-10-01), Lussier et al.
patent: 6895460 (2005-05-01), Desoli et al.
patent: 6938132 (2005-08-01), Joffe et al.
patent: 7016968 (2006-03-01), Willner et al.
patent: 7076558 (2006-07-01), Dunn
patent: 7203758 (2007-04-01), Cook et al.
patent: 7210022 (2007-04-01), Jungck et al.
patent: 7213137 (2007-05-01), Boom et al
patent: 7278014 (2007-10-01), Erb
patent: 7281120 (2007-10-01), Dieffenderfer et al.
patent: 7290050 (2007-10-01), Smith et al.
patent: 7318144 (2008-01-01), Najam et al.
patent: 7346898 (2008-03-01), Tserng
patent: 7383424 (2008-06-01), Olgiati et al.
patent: 7472261 (2008-12-01), Brokenshire et al.
patent: 2005/0251667 (2005-11-01), Iwamoto
patent: 2007/0074206 (2007-03-01), Iwamoto
patent: 2007/0074221 (2007-03-01), Stenson et al.
patent: 2007/0143551 (2007-06-01), Marr et al.
patent: 2008/0244200 (2008-10-01), Day et al.
patent: 2008/0244612 (2008-10-01), Murase et al.
patent: 1233258 (1988-02-01), None
patent: 0174231 (1986-03-01), None
patent: 0387172 (1990-09-01), None
patent: 02-272627 (1990-11-01), None
Eng, David, Notice of Allowance dated Aug. 11, 2008; U.S. Appl. No. 11/269,290.
Kahle, J.A., “Introduction to the Cell multiprocessor,” IBM Corporation, IBM Journal of Research and Development, vol. 49, No. 4-5, Jul./Sep. 2005, pp. 589-604.
Eng, David—Office Action dated Sep. 22, 2009, U.S. Appl. No. 12/128,927.
Eng, David—Office Action dated Apr. 2, 2010, U.S. Appl. No. 12/128,927.
Eng, David—Final Rejection dated Sep. 9, 2010, U.S. Appl. No. 12/128,927.
“Synergistic Processor Unit Instruction Set Architecture, Version 1.0,” IBM Corporation, Aug. 1, 2005; www.128.ibm.com/developerworks/power/cell/, pp. 1-257.
“Cell Broadband Engine Architecture, Version 1.0,” IBM Corporation, Aug. 8, 2005; www.128.ibm.com/developerworks/power/cell/, pp. 1-319.

Affiliated with

Also associated with

Rating

Invoking externally assisted calls from an isolated environment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Invoking externally assisted calls from an isolated environment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Invoking externally assisted calls from an isolated environment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2732143