Arm Limited

Catalin Theodor Marinas

Krisztian Flautner

Graeme Peter Barnes

James Ian McNiven

William James Deacon

Adrian Mark Peirson

An apparatus comprises address translation circuitry () to perform a translation of a virtual address () comprising a virtual tag portion () and a virtual address portion () into a physical address () comprising a physical tag portion () and a physical address portion (). The address translation circuitry comprises address tag translation circuitry () to perform a translation of the virtual tag portion into the physical tag portion and the address translation to be performed is selected in dependence on the virtual address.

Address translation in a data processing apparatus

Power management control software including power management policies is provided with those policies divided into observation codeand response code. When predetermined execution pointswithin the operating systemare reached registered observation codefor those execution pointsis triggered to be executed and serves to store event data within an event data store. At another time independent of the execution points, the response codeis executed to read the event data from the event data storeand generate power control predictions and control signals therefrom.

Growing community of inventors

Cambridge, United Kingdom

Catalin Theodor Marinas