Intel Corporation

Mahak Gupta

Joydeep Ray

Altug Koker

Aravindh V Anantaraman

Herbert H Hum

Lakshminarayana Pappu

James R Vash

Rahul Pal

Luke L Chang

Dongsheng Bi

Ganesh Kumar

Manoj K Arora

David Bubien

Eric Gouldey

Guadalupe J Garcia

Rahul Joshi

Shrikul Atulkumar Joshi

Lavanya Nama

In a further embodiment, a system on a chip integrated circuit (SoC) is provided that includes an active base die including a first cache memory, a first die mounted on and coupled with the active base die, and a second die mounted on the active base die and coupled with the active base die and the first die. The first die includes an interconnect fabric, an input/output interface, and an atomic operation handler. The second die includes an array of graphics processing elements and an interface to the first cache memory of the active base die. At least one of the graphics processing elements are configured to perform, via the atomic operation handler, an atomic operation to a memory device.

Atomic handling for disaggregated 3D structured SoCs

Responsive to receiving a write request for a cache line from an input/output device, a caching agent of a first processor determines that the cache line is managed by a home agent of a second processor. The caching agent sends an ownership request for the cache line to the second processor. A home agent of the second processor receives the ownership request, generates an entry in a directory cache for the cache line, the entry identifying the remote caching agent as having ownership of the cache line, and grants ownership of the cache line to the remote caching agent. Responsive to receiving the grant of ownership for the cache line from the home agent an input/output controller of the first processor adds an entry for the cache line to an input/output write cache, the entry comprising a first indicator that the cache line is managed by the home agent of the second processor.

Directory cache supporting non-atomic input/output operations

Growing community of inventors

Bengaluru, India

Mahak Gupta