公开(公告)号：US20210200695A1

公开(公告)日：2021-07-01

申请号：US16728114

申请日：2019-12-27

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： JAMES R. MAGRO ,  KEDARNATH BALAKRISHNAN ,  RAVINDRA N. BHARGAVA ,  GUANHAO SHEN

IPC: G06F13/16 ,  G11C11/406 ,  G11C8/12 ,  G06F12/1009

Abstract: Staging memory access requests includes receiving a memory access request directed to Dynamic Random Access Memory; storing the memory access request in a staging buffer; and moving the memory access request from the staging buffer to a command queue.

公开(公告)号：US20230031595A1

公开(公告)日：2023-02-02

申请号：US17961613

申请日：2022-10-07

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： JAMES R. MAGRO ,  KEDARNATH BALAKRISHNAN ,  BRENDAN T. MANGAN

IPC: G06F13/16 ,  G06F9/30 ,  G06F12/02 ,  G06F12/1009

Abstract: A memory controller includes a memory channel controller that uses multiple groups of command queue and arbiter pairs. Each arbiter is coupled to a respective command queue to select memory access commands from each command queue according to predetermined criteria. Each arbiter selects from among the memory access requests in each command queue independently based on the predetermined criteria and sends selected memory access requests to a selector that serves as a second level arbiter which sends the request to a memory subchannel.

公开(公告)号：US20210200694A1

公开(公告)日：2021-07-01

申请号：US16728152

申请日：2019-12-27

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： JAMES R. MAGRO ,  KEDARNATH BALAKRISHNAN ,  RAVINDRA N. BHARGAVA ,  GUANHAO SHEN

IPC: G06F13/16 ,  G06F12/0882 ,  G06F12/0879 ,  G06F9/54

Abstract: Staging buffer arbitration includes: storing a plurality of memory access requests in a staging buffer; selecting a memory access request of the plurality of memory access requests from the staging buffer based on one or more arbitration rules; and moving the memory access request from the staging buffer to a command queue.