公开(公告)号：US12248423B2

公开(公告)日：2025-03-11

申请号：US18163620

申请日：2023-02-02

Applicant: ADVANCED MICRO DEVICES, INC. ,  ATI TECHNOLOGIES ULC

Inventor： Buheng Xu ,  Dong Yu ,  Philip Ng ,  Lianji Cheng

IPC: G06F13/42

Abstract: An apparatus includes logic circuitry that selects a retag transaction identifier for an original transaction identifier of an incoming transaction request, based on a plurality of sub-groups of retag tracking data. Each sub-group of retag tracking data is associated with a corresponding sub-group of retag transaction identifiers in a group of retag transaction identifiers. The logic circuitry retags the incoming transaction request with the selected retag transaction identifier (ID) by replacing the original transaction identifier associated with the incoming transaction request and sends the retagged incoming transaction request to a target. A returned response is received from the target. The retag transaction ID in the returned response is removed and replaced with the original transaction ID before being sent as a reply to the requesting unit. Associated methods are also presented.

公开(公告)号：US20240330214A1

公开(公告)日：2024-10-03

申请号：US18191207

申请日：2023-03-28

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Lianji Cheng ,  Xiao Han ,  Qing Li

IPC: G06F13/24

CPC classification number: G06F13/24

Abstract: An apparatus includes logic circuitry, such as an interrupt controller, that serially arbitrates among a plurality of incoming interrupt requests for a target device and produces a selected incoming interrupt request. The logic generates a message signaled interrupt (MSI) message for the target device based on the selected incoming interrupt request using a plurality of linked lookup tables, such as a hierarchy of LUTs that include data used to generate the MSI message. Associated methods are also presented.