Preinstall of partial store cache lines

US10529396B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Ekaterina M. Ambroladze · Los Angeles, US
• Sascha Junghans · Herrenberg, DE
• Matthias Klein · Poughkeepsie, US
• Pak-kin Mak · Poughkeepsie, US
• Robert J. Sonnelitter, III · Wappingers Falls, US
• Chad G. Wilson · Palo Alto, US

Key dates

• Filing date: Jun 22, 2017
• Grant date: Jan 7, 2020
• Expiry date: Jan 19, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G11C7/103
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A system and method to transfer an ordered partial store of data from a controller to a memory subsystem receives the ordered partial store of data into a buffer of the controller. The method also includes issuing a preinstall command to the memory subsystem, wherein the preinstall command indicates that data from a number of addresses of memory corresponding with a target memory location be obtained in local memory of the memory subsystem along with ownership of the data for subsequent use. A query command is issued to the memory subsystem. The query command requests an indication from the memory subsystem that the memory subsystem is ready to receive and correctly serialize the ordered partial store of data. The ordered partial store of data is transferred from the controller to the memory subsystem.