公开(公告)号：US20180067889A1

公开(公告)日：2018-03-08

申请号：US15256936

申请日：2016-09-06

Applicant: Oracle International Corporation

Inventor： David A. Brown ,  Daniel Fowler ,  Rishabh Jain ,  Erik Schlanger ,  Michael Duller

IPC: G06F13/42 ,  G06F1/32

CPC classification number: G06F13/4221 ,  G06F1/3243 ,  Y02D10/152

Abstract: Techniques are provided for exchanging dedicated hardware signals to manage a first-in first-out (FIFO). In an embodiment, a first processor initiates content transfer into the FIFO. The first processor activates a first hardware signal that is reserved for indicating that content resides within the FIFO. A second processor activates a second hardware signal that is reserved for indicating that content is accepted. The second hardware signal causes the first hardware signal to be deactivated. This exchange of hardware signals demarcates a FIFO transaction, which is mediated by interface circuitry of the FIFO.