公开(公告)号：US20160092366A1

公开(公告)日：2016-03-31

申请号：US14497740

申请日：2014-09-26

申请人： Rahul PAL ,  Ishwar AGARWAL ,  Yen-Cheng LIU ,  Joseph NUZMAN ,  Ashok JAGANNATHAN ,  Bahaa FAHIM ,  Nithiyanandan BASHYAM

发明人： Rahul PAL ,  Ishwar AGARWAL ,  Yen-Cheng LIU ,  Joseph NUZMAN ,  Ashok JAGANNATHAN ,  Bahaa FAHIM ,  Nithiyanandan BASHYAM

IPC分类号： G06F12/08

CPC分类号： G06F12/0875 ,  G06F12/0831 ,  G06F2212/452

摘要： An apparatus and method are described for distributed snoop filtering. For example, one embodiment of a processor comprises: a plurality of cores to execute instructions and process data; first snoop logic to track a first plurality of cache lines stored in a mid-level cache (“MLC”) accessible by one or more of the cores, the first snoop logic to allocate entries for cache lines stored in the MLC and to deallocate entries for cache lines evicted from the MLC, wherein at least some of the cache lines evicted from the MLC are retained in a level 1 (L1) cache; and second snoop logic to track a second plurality of cache lines stored in a non-inclusive last level cache (NI LLC), the second snoop logic to allocate entries in the NI LLC for cache lines evicted from the MLC and to deallocate entries for cache lines stored in the MLC, wherein the second snoop logic is to store and maintain a first set of core valid bits to identify cores containing copies of the cache lines stored in the NI LLC.

摘要翻译： 描述了一种用于分布式监听过滤的设备和方法。 例如，处理器的一个实施例包括：执行指令和处理数据的多个核; 第一侦听逻辑，用于跟踪存储在由一个或多个核可访问的中级高速缓存（“MLC”）中的第一多个高速缓存行，所述第一侦听逻辑用于为存储在所述MLC中的高速缓存行分配条目，并且取消分配条目 对于从MLC移出的高速缓存行，其中从MLC中逐出的至少一些高速缓存行保留在级别1（L1）高速缓存中; 和第二窥探逻辑，用于跟踪存储在非包容性最后一级高速缓存（NI LLC）中的第二多个高速缓存行，所述第二监听逻辑用于在所述NI LLC中分配用于从所述MLC驱逐的高速缓存行的条目，并且取消分配用于高速缓存的条目 存储在MLC中的行，其中第二侦听逻辑将存储和维护第一组核心有效位以识别包含存储在NI LLC中的高速缓存行的副本的内核。

公开(公告)号：US20150006834A1

公开(公告)日：2015-01-01

申请号：US13931875

申请日：2013-06-29

申请人： Subramanya R. DULLOOR ,  Sanjay KUMAR ,  Rajesh M. SANKARAN ,  Gilbert NEIGER ,  Richard A. UHLIG ,  Robert S. CHAPPELL ,  Joseph NUZMAN ,  Kai CHENG ,  Sailesh KOTTAPALLI ,  Yen-Cheng LIU ,  Mohan KUMAR ,  Raj K. RAMANUJAN ,  Glenn J. HINTON

发明人： Subramanya R. DULLOOR ,  Sanjay KUMAR ,  Rajesh M. SANKARAN ,  Gilbert NEIGER ,  Richard A. UHLIG ,  Robert S. CHAPPELL ,  Joseph NUZMAN ,  Kai CHENG ,  Sailesh KOTTAPALLI ,  Yen-Cheng LIU ,  Mohan KUMAR ,  Raj K. RAMANUJAN ,  Glenn J. HINTON

IPC分类号： G06F3/06

CPC分类号： G06F3/0604 ,  G06F3/0659 ,  G06F3/0671 ,  G06F13/1668

摘要： An apparatus and method are described for store durability and ordering in a persistent memory architecture. For example, one embodiment of a method comprises: performing at least one store operation to one or more addresses identifying at least one persistent memory device, the store operations causing one or more memory controllers to store data in the at least one persistent memory device; sending a request message to the one or more memory controllers instructing the memory controllers to confirm that the store operations are successfully committed to the at least one persistent memory device; ensuring at the one or more memory controllers that at least all pending store operations received at the time of the request message will be committed to the persistent memory device; and sending a response message from the one or more memory controllers indicating that the store operations are successfully committed to the persistent memory device.

摘要翻译： 描述了用于在持久存储器架构中的存储耐久性和排序的装置和方法。 例如，方法的一个实施例包括：对识别至少一个持久存储器设备的一个或多个地址执行至少一个存储操作，所述存储操作使一个或多个存储器控制器将数据存储在所述至少一个持久存储器设备中; 向所述一个或多个存储器控制器发送请求消息，指示所述存储器控制器确认所述存储操作被成功地提交给所述至少一个持久存储器设备; 确保在所述一个或多个存储器控制器处，至少在请求消息时接收到的所有未决存储操作将被提交给持久存储器设备; 以及从所述一个或多个存储器控制器发送指示所述存储操作被成功地提交给所述持久存储器设备的响应消息。