Intel Corporation

Robert J Kyanko

Avinash Sodani

Milind Baburao Girkar

Richard J Greco

Andreas Kleen

Christopher M Cantalupo

Benjamin C Chaffin

In one embodiment, a processor comprises: at least one core formed on a die to execute instructions; a first memory controller to interface with an in-package memory; a second memory controller to interface with a platform memory to couple to the processor; and the in-package memory located within a package of the processor, where the in-package memory is to be identified as a more distant memory with respect to the at least one core than the platform memory. Other embodiments are described and claimed.

Providing multiple memory modes for a processor including internal memory

Instructions and logic provide user-level thread synchronization with MONITOR and MWAIT instructions. One or more model specific registers (MSRs) in a processor may be configured in a first execution state to specify support of a user-level thread synchronization architecture. Embodiments include multiple hardware threads or processing cores, corresponding monitored address state storage to store a last monitored address for each of a plurality of execution threads that issues a MONITOR request, cache memory to record MONITOR requests and associated states for addresses of memory storage locations, and responsive to receipt of an MWAIT request for the address, to record an associated wait-to-trigger state of monitored addresses for execution cores associated with an MWAIT request; wherein the execution core is to transition a requesting thread to an optimized sleep state responsive to the receipt of said MWAIT request when said one or more MSRs are configured in the first execution state.

Method and apparatus for user-level thread synchronization with a monitor and MWAIT architecture

Growing community of inventors

Portland, OR, United States of America

Robert J Kyanko