公开(公告)号：US11741009B1

公开(公告)日：2023-08-29

申请号：US17526944

申请日：2021-11-15

Applicant: Apple Inc.

Inventor： Sandeep Gupta ,  Brian P Lilly ,  Krishna C Potnuru

IPC: G06F12/00 ,  G06F12/0802

CPC classification number: G06F12/0802 ,  G06F2212/60

Abstract: A cache may include multiple request handling pipes, each of which may further include multiple request buffers, for storing device requests from one or more processors to one or more devices. Some of the device requests may require to be sent to the devices according to an order. For a given one of such device requests, the cache may select a request handling pipe, based on an address indicated by the device request, and select a request buffer, based on the available entries of the request buffers of the selected request handling pipe, to store the device request. The cache may further use a first-level and a second-level token stores to track and maintain the device requests in order when transmitting the device requests to the devices.

公开(公告)号：US12216578B2

公开(公告)日：2025-02-04

申请号：US18353830

申请日：2023-07-17

Applicant: Apple Inc.

Inventor： Sandeep Gupta ,  Brian P Lilly ,  Krishna C Potnuru

IPC: G06F12/00 ,  G06F12/0802

Abstract: A cache may include multiple request handling pipes, each of which may further include multiple request buffers, for storing device requests from one or more processors to one or more devices. Some of the device requests may require to be sent to the devices according to an order. For a given one of such device requests, the cache may select a request handling pipe, based on an address indicated by the device request, and select a request buffer, based on the available entries of the request buffers of the selected request handling pipe, to store the device request. The cache may further use a first-level and a second-level token stores to track and maintain the device requests in order when transmitting the device requests to the devices.