公开(公告)号：US20190227841A1

公开(公告)日：2019-07-25

申请号：US16373501

申请日：2019-04-02

Applicant: Intel Corporation

Inventor： John MORAN ,  Ireneusz SOBANSKI ,  Edward BRAZIL

IPC: G06F9/48 ,  G06F9/30

Abstract: In some examples, multiple requesters request use of a resource and a single request is granted. A priority scheme can be set such that among pairs of requests, the lower numbered request is advanced. After one or more rounds of arbitration, a determination is made as to which request to grant. In a case where higher priority requesters are to be identified, masks can be used to mask out requests from non-higher priority requesters in a subsequent round. A mask can be generated for any requester that is at or below the priority level of the requester that had its request granted. Accordingly, when a high priority arbiter is used to set another priority level, the mask(s) can be used to indicate the higher priority requests.