Intel Corporation

Nikethan Shivanand Baligar

Ankush Varma

Nikhil Gupta

Yogesh Bansal

Ujjwal Gupta

Krishnakanth Venkata Sistla

Andrew J Herdrich

Vivek Garg

Dean A Mulla

Swadesh Choudhary

Lakshmipriya Seshan

Nazar Syed Haider

Ripan Das

Adwait Purandare

Suresh Chemudupati

Eric Dehaemer

Aman Sewani

Nilanjan Palit

Rupal Parikh

Pavithra Sampath

Stanley Chen

Stephen Wang

Dorit Shapira

Shruthi Venugopal

Phani Kumar Kandula

Michael Tulanowski

Timothy Yee-Kwong Kam

Stephen Paul Haake

A single communication fabric for a data processing apparatus is provided. The fabric has an interconnection network to provide a topology of data communication channels between a plurality of data-handling functional units. The interconnection network has a first interconnection domain to provide data communication between a first subset of the data-handling functional units and a second interconnection domain to provide data communication between a second subset of the data-handling functional units. The power management circuitry is arranged to control a first performance level for the first interconnection domain independently from control of a second performance level for the second interconnection domain. Machine readable instructions and a method are provided to concurrently set performance levels of two different fabric domains to respective different operating frequencies.

Performance level control in a data processing apparatus

Hierarchical Power Management (HPM) architecture considers the limits of scaling on a power management controller, the autonomy at each die, and provides a unified view of the package to a platform. At a simplest level, HPM architecture has a supervisor and one or more supervisee power management units (PMUs) that communicate via at least two different communication fabrics. Each PMU can behave as a supervisor for a number of supervisee PMUs in a particular domain. HPM addresses these needs for products that comprise a collection of dice with varying levels of power and thermal management capabilities and needs. HPM serves as a unified mechanism than can span collection of dice of varying capability and function, which together form a traditional system-on-chip (SoC). HPM provides a basis for managing power and thermals across a diverse set of dice.

Hierarchical power management apparatus and method

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Hillsboro, OR, United States of America

Nikethan Shivanand Baligar