公开(公告)号：US20140181480A1

公开(公告)日：2014-06-26

申请号：US13723296

申请日：2012-12-21

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Stephan Diestelhorst ,  Martin Pohlack ,  Michael Hohmuth ,  David Christie ,  Luke Yen

IPC: G06F9/30

CPC classification number: G06F9/3842 ,  G06F9/3857 ,  G06F9/3861 ,  G06F9/528

Abstract: An apparatus, computer readable medium, and method of performing nested speculative regions are presented. The method includes responding to entering a speculative region by storing link information to an abort handler and responding to a commit command by removing link information from the abort handler. The method may include storing link information to the abort handler associated with the speculative region. When the speculative region is nested, the method may include storing link information to an abort handler associated with a previous speculative region. Removing link information may include removing link information from the abort handler associated with the corresponding speculative region. The method may include restoring link information to the abort handler associated with a previous speculative region. Responding to an abort command may include running the abort handler associated with the aborted speculative region. The method may include running the abort handler of each previous speculative region.

Abstract translation: 提出了一种执行嵌套投机区域的装置，计算机可读介质和方法。 该方法包括通过将中止处理程序的链接信息存储到中止处理程序并通过从中止处理程序中移除链接信息来响应提交命令来响应输入推测区域。 该方法可以包括将链接信息存储到与推测区域相关联的中止处理程序。 当推测区域被嵌套时，该方法可以包括将链接信息存储到与先前的推测区域相关联的中止处理程序。 删除链接信息可以包括从与相应的推测区域相关联的中止处理程序中移除链接信息。 该方法可以包括将链接信息恢复到与先前的推测区域相关联的中止处理程序。 响应中止命令可能包括运行与中止的投机区域相关联的中止处理程序。 该方法可以包括运行每个先前的推测区域的中止处理程序。

公开(公告)号：US20130103908A1

公开(公告)日：2013-04-25

申请号：US13714132

申请日：2012-12-13

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Jaewoong Chung ,  David S. Christie ,  Michael Hohmuth ,  Stephan Diestelhorst ,  Martin Pohlack ,  Luke Yen

IPC: G06F12/00

CPC classification number: G06F12/00 ,  G06F9/3004 ,  G06F9/30087 ,  G06F9/3834 ,  G06F9/3857

Abstract: A method and apparatus are disclosed for implementing early release of speculatively read data in a hardware transactional memory system. A processing core comprises a hardware transactional memory system configured to receive an early release indication for a specified word of a group of words in a read set of an active transaction. The early release indication comprises a request to remove the specified word from the read set. In response to the early release request, the processing core removes the group of words from the read set only after determining that no word in the group other than the specified word has been speculatively read during the active transaction.

Abstract translation: 公开了用于实现在硬件事务存储器系统中推测读取数据的早期释放的方法和装置。 处理核心包括硬件事务存储器系统，其被配置为接收活动事务的读取集合中的一组单词的指定字的早期释放指示。 早期释放指示包括从读取集中移除指定单词的请求。 响应于早期释放请求，处理核心仅在确定在活动事务期间没有推测性地读取除了指定单词之外的组中的任何单词之后才从读取集合中移除单词组。

公开(公告)号：US09459877B2

公开(公告)日：2016-10-04

申请号：US13723296

申请日：2012-12-21

Applicant: Advanced Micro Devices, Inc.

Inventor： Stephan Diestelhorst ,  Martin Pohlack ,  Michael Hohmuth ,  David Christie ,  Luke Yen

IPC: G06F9/38 ,  G06F9/52

CPC classification number: G06F9/3842 ,  G06F9/3857 ,  G06F9/3861 ,  G06F9/528

Abstract: An apparatus, computer readable medium, and method of performing nested speculative regions are presented. The method includes responding to entering a speculative region by storing link information to an abort handler and responding to a commit command by removing link information from the abort handler. The method may include storing link information to the abort handler associated with the speculative region. When the speculative region is nested, the method may include storing link information to an abort handler associated with a previous speculative region. Removing link information may include removing link information from the abort handler associated with the corresponding speculative region. The method may include restoring link information to the abort handler associated with a previous speculative region. Responding to an abort command may include running the abort handler associated with the aborted speculative region. The method may include running the abort handler of each previous speculative region.

Abstract translation: 提出了一种执行嵌套投机区域的装置，计算机可读介质和方法。 该方法包括通过将中止处理程序的链接信息存储到中止处理程序并通过从中止处理程序中移除链接信息来响应提交命令来响应输入推测区域。 该方法可以包括将链接信息存储到与推测区域相关联的中止处理程序。 当推测区域被嵌套时，该方法可以包括将链接信息存储到与先前的推测区域相关联的中止处理程序。 删除链接信息可以包括从与相应的推测区域相关联的中止处理程序中移除链接信息。 该方法可以包括将链接信息恢复到与先前的推测区域相关联的中止处理程序。 响应中止命令可能包括运行与中止的投机区域相关联的中止处理程序。 该方法可以包括运行每个先前的推测区域的中止处理程序。

公开(公告)号：US08543775B2

公开(公告)日：2013-09-24

申请号：US13714132

申请日：2012-12-13

Applicant: Advanced Micro Devices, Inc.

Inventor： Jaewoong Chung ,  David S Christie ,  Michael Hohmuth ,  Stephan Diestelhorst ,  Martin Pohlack ,  Luke Yen

IPC: G06F12/00

CPC classification number: G06F12/00 ,  G06F9/3004 ,  G06F9/30087 ,  G06F9/3834 ,  G06F9/3857

Abstract: A method and apparatus are disclosed for implementing early release of speculatively read data in a hardware transactional memory system. A processing core comprises a hardware transactional memory system configured to receive an early release indication for a specified word of a group of words in a read set of an active transaction. The early release indication comprises a request to remove the specified word from the read set. In response to the early release request, the processing core removes the group of words from the read set only after determining that no word in the group other than the specified word has been speculatively read during the active transaction.

Abstract translation: 公开了用于实现在硬件事务存储器系统中推测读取数据的早期释放的方法和装置。 处理核心包括硬件事务存储器系统，其被配置为接收活动事务的读取集合中的一组单词的指定字的早期释放指示。 早期释放指示包括从读取集中移除指定单词的请求。 响应于早期释放请求，处理核心仅在确定在活动事务期间没有推测性地读取除了指定单词之外的组中的任何单词之后才从读取集合中移除单词组。