View source for 18819755. Memory Controller Reservation of Retry Queue (Apple Inc.)

=Memory Controller Reservation of Retry Queue=


==Organization Name==

[[:Category:Apple Inc.|Apple Inc.]]


[[Category:Apple Inc.]]

==Inventor(s)==

[[:Category:Ilya Granovsky of Kiryat Tivon IL|Ilya Granovsky of Kiryat Tivon IL]][[Category:Ilya Granovsky of Kiryat Tivon IL]]

[[:Category:Jurgen M. Schulz of Pleasanton CA US|Jurgen M. Schulz of Pleasanton CA US]][[Category:Jurgen M. Schulz of Pleasanton CA US]]

[[:Category:Tom Greenshtein of Haifa IL|Tom Greenshtein of Haifa IL]][[Category:Tom Greenshtein of Haifa IL]]

[[:Category:Elli Bagelman of Haifa IL|Elli Bagelman of Haifa IL]][[Category:Elli Bagelman of Haifa IL]]

[[:Category:Brian P. Lilly of Los Gatos CA US|Brian P. Lilly of Los Gatos CA US]][[Category:Brian P. Lilly of Los Gatos CA US]]

[[:Category:John H. Kelm of Belmont CA US|John H. Kelm of Belmont CA US]][[Category:John H. Kelm of Belmont CA US]]

[[:Category:Rohit K. Gupta of Santa Clara CA US|Rohit K. Gupta of Santa Clara CA US]][[Category:Rohit K. Gupta of Santa Clara CA US]]

[[:Category:Sandeep Gupta of San Mateo CA US|Sandeep Gupta of San Mateo CA US]][[Category:Sandeep Gupta of San Mateo CA US]]

[[:Category:Anwar Q. Rohillah of Dublin CA US|Anwar Q. Rohillah of Dublin CA US]][[Category:Anwar Q. Rohillah of Dublin CA US]]

==Memory Controller Reservation of Retry Queue==


This abstract first appeared for US patent application 18819755 titled 'Memory Controller Reservation of Retry Queue

==Original Abstract Submitted==

A memory controller circuit receives memory access requests from a network of a computer system. Entries are reserved for these requests in a retry queue circuit. An arbitration circuit of the memory controller circuit issues those requests to a tag pipeline circuit that determines whether the received memory access requests hit in a memory cache. As a memory access request passes through the tag pipeline circuit, it may require another pass through this pipeline—for example, if resources such as certain storage circuits needed to complete the memory access request are unavailable (for example a snoop queue circuit). The reservation that has been made in the retry queue circuit thus keeps the request from having to be returned to the network for resubmission to the memory controller circuit if initial processing of the memory access request cannot be completed.



[[Category:G06F13/16]]
[[Category:G06F12/0831]]
[[Category:CPC_G06F13/1642]]