Reducing number of rejected snoop requests by extending time to respond to snoop request
    1.
    发明授权
    Reducing number of rejected snoop requests by extending time to respond to snoop request 失效
    通过延长响应窥探请求的时间来减少被拒绝的窥探请求数

    公开(公告)号:US07340568B2

    公开(公告)日:2008-03-04

    申请号:US11056740

    申请日:2005-02-11

    IPC分类号: G06F12/00

    CPC分类号: G06F12/0831

    摘要: A cache, system and method for reducing the number of rejected snoop requests. A “stall/reorder unit” in a cache receives a snoop request from an interconnect. Information, such as the address, of the snoop request is stored in a queue of the stall/reorder unit. The stall/reorder unit forwards the snoop request to a selector which also receives a request from a processor. An arbitration mechanism selects either the snoop request or the request from the processor. If the snoop request is denied by the arbitration mechanism, information, e.g., address, about the snoop request may be maintained in the stall/reorder unit. The request may be later resent to the selector. This process may be repeated up to “n” clock cycles. By providing the snoop request additional opportunities (n clock cycles) to be accepted by the arbitration mechanism, fewer snoop requests may ultimately be denied.

    摘要翻译: 用于减少拒绝的窥探请求数量的缓存,系统和方法。 缓存中的“停止/重新排序单元”从互连中接收窥探请求。 窥探请求的诸如地址的信息被存储在失速/重新排序单元的队列中。 停止/重新排序单元将窥探请求转发到也从处理器接收请求的选择器。 仲裁机制选择来自处理器的窥探请求或请求。 如果侦听请求被仲裁机制拒绝,关于窥探请求的信息(例如地址)可以被保留在停止/重新排序单元中。 请求可能会稍后重新发送到选择器。 该过程可以重复直到“n”个时钟周期。 通过提供窥探请求仲裁机制接受的额外机会(n个时钟周期),最终可能会拒绝更少的侦听请求。

    Reducing number of rejected snoop requests by extending time to respond to snoop request
    2.
    发明授权
    Reducing number of rejected snoop requests by extending time to respond to snoop request 失效
    通过延长响应窥探请求的时间来减少被拒绝的窥探请求数

    公开(公告)号:US07818511B2

    公开(公告)日:2010-10-19

    申请号:US11847941

    申请日:2007-08-30

    IPC分类号: G06F12/00

    CPC分类号: G06F12/0831

    摘要: A cache, system and method for reducing the number of rejected snoop requests. A “stall/reorder unit” in a cache receives a snoop request from an interconnect. Information, such as the address, of the snoop request is stored in a queue of the stall/reorder unit. The stall/reorder unit forwards the snoop request to a selector which also receives a request from a processor. An arbitration mechanism selects either the snoop request or the request from the processor. If the snoop request is denied by the arbitration mechanism, information, e.g., address, about the snoop request may be maintained in the stall/reorder unit. The request may be later resent to the selector. This process may be repeated up to “n” clock cycles. By providing the snoop request additional opportunities (n clock cycles) to be accepted by the arbitration mechanism, fewer snoop requests may ultimately be denied.

    摘要翻译: 用于减少拒绝的窥探请求数量的缓存,系统和方法。 缓存中的“停止/重新排序单元”从互连中接收窥探请求。 窥探请求的诸如地址的信息被存储在失速/重新排序单元的队列中。 停止/重新排序单元将窥探请求转发到也从处理器接收请求的选择器。 仲裁机制选择来自处理器的窥探请求或请求。 如果侦听请求被仲裁机制拒绝,关于窥探请求的信息(例如地址)可以被保留在停止/重新排序单元中。 请求可能会稍后重新发送到选择器。 该过程可以重复直到“n”个时钟周期。 通过提供窥探请求仲裁机制接受的额外机会(n个时钟周期),最终可能会拒绝更少的侦听请求。

    Reducing number of rejected snoop requests by extending time to respond to snoop request
    3.
    发明授权
    Reducing number of rejected snoop requests by extending time to respond to snoop request 失效
    通过延长响应窥探请求的时间来减少被拒绝的窥探请求数

    公开(公告)号:US07484046B2

    公开(公告)日:2009-01-27

    申请号:US11950717

    申请日:2007-12-05

    IPC分类号: G06F12/00

    CPC分类号: G06F12/0831

    摘要: A cache, system and method for reducing the number of rejected snoop requests. A “stall/reorder unit” in a cache receives a snoop request from an interconnect. Information, such as the address, of the snoop request is stored in a queue of the stall/reorder unit. The stall/reorder unit forwards the snoop request to a selector which also receives a request from a processor. An arbitration mechanism selects either the snoop request or the request from the processor. If the snoop request is denied by the arbitration mechanism, information, e.g., address, about the snoop request may be maintained in the stall/reorder unit. The request may be later resent to the selector. This process may be repeated up to “n” clock cycles. By providing the snoop request additional opportunities (n clock cycles) to be accepted by the arbitration mechanism, fewer snoop requests may ultimately be denied.

    摘要翻译: 用于减少拒绝的窥探请求数量的缓存,系统和方法。 缓存中的“停止/重新排序单元”从互连中接收窥探请求。 窥探请求的诸如地址的信息被存储在失速/重新排序单元的队列中。 停止/重新排序单元将窥探请求转发到也从处理器接收请求的选择器。 仲裁机制选择来自处理器的窥探请求或请求。 如果侦听请求被仲裁机制拒绝,关于窥探请求的信息(例如地址)可以被保留在停止/重新排序单元中。 请求可能会稍后重新发送到选择器。 该过程可以重复直到“n”个时钟周期。 通过提供窥探请求仲裁机制接受的额外机会(n个时钟周期),最终可能会拒绝更少的侦听请求。

    Synchronized communication in a data processing system
    6.
    发明授权
    Synchronized communication in a data processing system 失效
    数据处理系统中的同步通信

    公开(公告)号:US08103791B2

    公开(公告)日:2012-01-24

    申请号:US12195130

    申请日:2008-08-20

    CPC分类号: G06F15/16

    摘要: A data processing system includes a plurality of processing units, including at least a local master and a local hub, which are coupled for communication via a communication link. The local master includes a master capable of initiating an operation, a snooper capable of receiving an operation, and interconnect logic coupled to a communication link coupling the local master to the local hub. The interconnect logic includes request logic that synchronizes internal transmission of a request of the master to the snooper with transmission, via the communication link, of the request to the local hub.

    摘要翻译: 数据处理系统包括多个处理单元,至少包括本地主站和本地集线器,其经由通信链路进行通信。 本地主机包括能够启动操作的主机,能够接收操作的监听器,以及耦合到将本地主机耦合到本地集线器的通信链路的逻辑互连。 互连逻辑包括请求逻辑,其将主机的请求的内部传输与通过通信链路传送到本地集线器的请求同步到窥探者的请求逻辑。

    DATA PROCESSING SYSTEM, METHOD AND INTERCONNECT FABRIC FOR SYNCHRONIZED COMMUNICATION IN A DATA PROCESSING SYSTEM
    7.
    发明申请
    DATA PROCESSING SYSTEM, METHOD AND INTERCONNECT FABRIC FOR SYNCHRONIZED COMMUNICATION IN A DATA PROCESSING SYSTEM 失效
    数据处理系统,数据处理系统中的同步通信的方法和互连结构

    公开(公告)号:US20080307137A1

    公开(公告)日:2008-12-11

    申请号:US12195130

    申请日:2008-08-20

    IPC分类号: G06F13/40

    CPC分类号: G06F15/16

    摘要: A data processing system includes a plurality of processing units, including at least a local master and a local hub, which are coupled for communication via a communication link. The local master includes a master capable of initiating an operation, a snooper capable of receiving an operation, and interconnect logic coupled to a communication link coupling the local master to the local hub. The interconnect logic includes request logic that synchronizes internal transmission of a request of the master to the snooper with transmission, via the communication link, of the request to the local hub.

    摘要翻译: 数据处理系统包括多个处理单元,至少包括本地主站和本地集线器,其经由通信链路进行通信。 本地主机包括能够启动操作的主机,能够接收操作的监听器,以及耦合到将本地主机耦合到本地集线器的通信链路的逻辑互连。 互连逻辑包括请求逻辑,其将主机的请求的内部传输与通过通信链路传送到本地集线器的请求同步到窥探者的请求逻辑。

    Data processing system, method and interconnect fabric for synchronized communication in a data processing system
    8.
    发明授权
    Data processing system, method and interconnect fabric for synchronized communication in a data processing system 失效
    数据处理系统,方法和互连结构,用于数据处理系统中的同步通信

    公开(公告)号:US07451231B2

    公开(公告)日:2008-11-11

    申请号:US11055299

    申请日:2005-02-10

    IPC分类号: G06F15/173 G06F12/00

    CPC分类号: G06F15/16

    摘要: A data processing system includes a plurality of processing units, including at least a local master and a local hub, which are coupled for communication via a communication link. The local master includes a master capable of initiating an operation, a snooper capable of receiving an operation, and interconnect logic coupled to a communication link coupling the local master to the local hub. The interconnect logic includes request logic that synchronizes internal transmission of a request of the master to the snooper with transmission, via the communication link, of the request to the local hub.

    摘要翻译: 数据处理系统包括多个处理单元,至少包括本地主站和本地集线器,其经由通信链路进行通信。 本地主机包括能够启动操作的主机,能够接收操作的监听器,以及耦合到将本地主机耦合到本地集线器的通信链路的逻辑互连。 互连逻辑包括请求逻辑,其将主机的请求的内部传输与通过通信链路传送到本地集线器的请求同步到窥探者的请求逻辑。

    Protecting ownership transfer with non-uniform protection windows
    9.
    发明授权
    Protecting ownership transfer with non-uniform protection windows 失效
    用不均匀的保护窗保护所有权转让

    公开(公告)号:US07734876B2

    公开(公告)日:2010-06-08

    申请号:US11560603

    申请日:2006-11-16

    IPC分类号: G06F13/00

    CPC分类号: G06F12/0833

    摘要: In a data processing system, a plurality of agents communicate operations therebetween. Each operation includes a request and a combined response representing a system-wide response to the request. Within data storage in the data processing system, a data structure indicates a duration of a protection window extension for each of the plurality of agents. Each protection window extension is a period following receipt of a combined response during which an associated one of the plurality of agents protects transfer of coherency ownership of a data granule between agents. Each of the plurality of agents is configured with a duration of a protection window extension by reference to the data structure, and at least two of the agents have protection window extensions of differing durations. The plurality of agents thereafter employ the configured protection window extensions.

    摘要翻译: 在数据处理系统中,多个代理之间进行通信。 每个操作包括一个请求和组合的响应,代表对该请求的全系统响应。 在数据处理系统中的数据存储中,数据结构指示多个代理中的每一个的保护窗口扩展的持续时间。 每个保护窗口扩展是接收到组合响应之后的周期,在该周期期间,所述多个代理中的相关联的一个代理保护代理之间的数据粒子的一致性所有权的传送。 通过参考数据结构,多个代理中的每一个配置有保护窗口扩展的持续时间,并且至少两个代理具有不同持续时间的保护窗口扩展。 此后,多个代理程序采用配置的保护窗口扩展。