Patent ID: 11921635
Assignee: INTEL CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. The method as in claim 11, wherein the memory write request is by the graphics processor and transferring coherency ownership associated with the block of memory includes:
sending, by a first address translation circuit associated with the graphics processor, a request to a second address translation circuit associated with the application processor, wherein the request is a request to obtain coherency ownership for the one or more cache lines associated with the block of memory;
receiving, at the first address translation circuit, from the second address translation circuit, a response to the request, wherein the response is a transfer ownership response; and
after receiving the response at the first address translation circuit, setting coherency ownership in the cache coherency metadata of the first address translation circuit to indicate ownership for a core of the graphics processor taking ownership of the block of memory and clearing coherency ownership for the core of the application processor previously having ownership in the cache coherency metadata of the first address translation circuit.