公开(公告)号：US20140095800A1

公开(公告)日：2014-04-03

申请号：US13629865

申请日：2012-09-28

Applicant: APPLE INC.

Inventor： Sukalpa Biswas ,  Shinye Shiu ,  James Wang ,  Robert Hu

IPC: G06F12/08

CPC classification number: G06F12/126 ,  G06F1/3225 ,  G06F12/0842

Abstract: Methods and apparatuses for releasing the sticky state of cache lines for one or more group IDs. A sticky removal engine walks through the tag memory of a system cache looking for matches with a first group ID which is clearing its cache lines from the system cache. The engine clears the sticky state of each cache line belonging to the first group ID. If the engine receives a release request for a second group ID, the engine records the current index to log its progress through the tag memory. Then, the engine continues its walk through the tag memory looking for matches with either the first or second group ID. The engine wraps around to the start of the tag memory and continues its walk until reaching the recorded index for the second group ID.

Abstract translation: 用于释放用于一个或多个组ID的高速缓存行的粘性状态的方法和装置。 粘性移除引擎遍历系统缓存的标签存储器，寻找与从系统高速缓存清除其高速缓存行的第一组ID的匹配。 引擎清除属于第一组ID的每个高速缓存行的粘性状态。 如果引擎接收到第二组ID的释放请求，则引擎记录当前索引以通过标记存储器记录其进度。 然后，引擎继续通过标签存储器查找与第一或第二组ID的匹配。 发动机卷绕到标签存储器的开头，并继续其行进直到达到第二组ID的记录索引。

公开(公告)号：US20140025900A1

公开(公告)日：2014-01-23

申请号：US14032405

申请日：2013-09-20

Applicant: Apple Inc.

Inventor： James Wang ,  Zongjian Chen ,  James B. Keller ,  Timothy J. Millet

IPC: G06F12/12

CPC classification number: G06F3/0631 ,  G06F3/0604 ,  G06F3/0638 ,  G06F3/0673 ,  G06F12/0802 ,  G06F12/0831 ,  G06F12/0848 ,  G06F12/0853 ,  G06F12/0864 ,  G06F12/0877 ,  G06F12/125 ,  G06F2212/1021 ,  G06F2212/2515 ,  G06F2212/282 ,  G06F2212/601 ,  G06F2212/62 ,  Y02D10/13

Abstract: In one embodiment, a memory that is delineated into transparent and non-transparent portions. The transparent portion may be controlled by a control unit coupled to the memory, along with a corresponding tag memory. The non-transparent portion may be software controlled by directly accessing the non-transparent portion via an input address. In an embodiment, the memory may include a decoder configured to decode the address and select a location in either the transparent or non-transparent portion. Each request may include a non-transparent attribute identifying the request as either transparent or non-transparent. In an embodiment, the size of the transparent portion may be programmable. Based on the non-transparent attribute indicating transparent, the decoder may selectively mask bits of the address based on the size to ensure that the decoder only selects a location in the transparent portion.

Abstract translation: 在一个实施例中，描绘为透明和非透明部分的存储器。 透明部分可以由耦合到存储器的控制单元以及对应的标签存储器来控制。 非透明部分可以通过经由输入地址直接访问不透明部分来进行软件控制。 在一个实施例中，存储器可以包括解码器，其被配置为对该地址进行解码并选择透明部分或非透明部分中的位置。 每个请求可以包括将该请求标识为透明或不透明的不透明属性。 在一个实施例中，透明部分的尺寸可以是可编程的。 基于指示透明的非透明属性，解码器可以基于大小来选择性地屏蔽地址的位，以确保解码器仅选择透明部分中的位置。