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1. 发明申请

US20080016284A1 DATA PROCESSING SYSTEM AND METHOD FOR PREDICTIVELY SELECTING A SCOPE OF BROADCAST OF AN OPERATION UTILIZING A HISTORY-BASED PREDICTION 审中-公开
标题翻译：数据处理系统和方法，用于预测性地选择使用基于历史的预测操作的广播范围
公开(公告)号：US20080016284A1
公开(公告)日：2008-01-17
申请号：US11863979
申请日：2007-09-28
申请人： BENJIMAN GOODMAN , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
发明人： BENJIMAN GOODMAN , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
IPC分类号： G06F13/28
CPC分类号： G06F12/0833 , G06F2212/507
摘要： According to a method of data processing, a predictor is maintained that indicates a historical scope of broadcast for one or more previous operations transmitted on an interconnect of a data processing system. A scope of broadcast of a subsequent operation is predictively selected by reference to the predictor.
摘要翻译：根据数据处理的方法，保持预测器，其指示在数据处理系统的互连上发送的一个或多个先前操作的广播的历史范围。通过参考预测器预测性地选择后续操作的广播范围。

2. 发明申请

US20070294486A1 Reducing Number of Rejected Snoop Requests By Extending Time to Respond to Snoop Request 失效
标题翻译：通过延长响应Snoop请求的时间来减少被拒绝的侦听请求数
公开(公告)号：US20070294486A1
公开(公告)日：2007-12-20
申请号：US11847941
申请日：2007-08-30
申请人： Benjiman Goodman , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
发明人： Benjiman Goodman , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
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。

3. 发明申请

US20070226427A1 Data processing system, cache system and method for updating an invalid coherency state in response to snooping an operation 失效
标题翻译：数据处理系统，缓存系统和用于响应于窥探操作来更新无效一致性状态的方法
公开(公告)号：US20070226427A1
公开(公告)日：2007-09-27
申请号：US11388017
申请日：2006-03-23
申请人： Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
发明人： Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
IPC分类号： G06F13/28
CPC分类号： G06F12/0831 , G06F2212/507
摘要： A cache coherent data processing system includes at least first and second coherency domains. In a first cache memory within the first coherency domain of the data processing system, a coherency state field associated with a storage location and an address tag is set to a first data-invalid coherency state that indicates that the address tag is valid and that the storage location does not contain valid data. In response to snooping an exclusive access operation, the exclusive access request specifying a target address matching the address tag and indicating a relative domain location of a requester that initiated the exclusive access operation, the first cache memory updates the coherency state field from the first data-invalid coherency state to a second data-invalid coherency state that indicates that the address tag is valid, that the storage location does not contain valid data, and whether a target memory block associated with the address tag is cached within the first coherency domain upon successful completion of the exclusive access operation based upon the relative location of the requestor.
摘要翻译：缓存相干数据处理系统至少包括第一和第二相干域。在数据处理系统的第一相关域内的第一高速缓冲存储器中，将与存储位置和地址标签相关联的一致性状态字段设置为指示地址标签有效的第一数据无效一致性状态，存储位置不包含有效数据。响应于窥探独占访问操作，专用访问请求指定与地址标签匹配的目标地址，并且指示发起独占访问操作的请求者的相对域位置，第一高速缓存存储器从第一数据更新相关性状态字段 - 无效的一致性状态到指示地址标签有效的第二数据无效一致性状态，存储位置不包含有效数据，以及与地址标签相关联的目标存储器块是否被缓存在第一相关域内基于请求者的相对位置成功完成独占访问操作。

4. 发明申请

US20060271744A1 Data processing system and method for predictively selecting a scope of broadcast of an operation utilizing a history-based prediction 失效
标题翻译：用于使用基于历史的预测来预测性地选择操作的广播范围的数据处理系统和方法
公开(公告)号：US20060271744A1
公开(公告)日：2006-11-30
申请号：US11140821
申请日：2005-05-31
申请人： Benjiman Goodman , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
发明人： Benjiman Goodman , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
IPC分类号： G06F13/28
CPC分类号： G06F12/0833 , G06F2212/507
摘要： According to a method of data processing, a predictor is maintained that indicates a historical scope of broadcast for one or more previous operations transmitted on an interconnect of a data processing system. A scope of broadcast of a subsequent operation is predictively selected by reference to the predictor.
摘要翻译：根据数据处理的方法，保持预测器，其指示在数据处理系统的互连上发送的一个或多个先前操作的广播的历史范围。通过参考预测器预测性地选择后续操作的广播范围。

5. 发明申请

US20080077744A1 Reducing Number of Rejected Snoop Requests By Extending Time To Respond To Snoop Request 失效
标题翻译：通过延长响应Snoop请求的时间减少被拒绝的侦听请求数
公开(公告)号：US20080077744A1
公开(公告)日：2008-03-27
申请号：US11950717
申请日：2007-12-05
申请人： Benjiman Goodman , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
发明人： Benjiman Goodman , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
IPC分类号： G06F13/28
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。

6. 发明申请

US20070168618A1 Data processing system, cache system and method for precisely forming an invalid coherency state indicating a broadcast scope 失效
标题翻译：数据处理系统，缓存系统和精确形成指示广播范围的无效一致性状态的方法
公开(公告)号：US20070168618A1
公开(公告)日：2007-07-19
申请号：US11333615
申请日：2006-01-17
申请人： Leo Clark , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
发明人： Leo Clark , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
IPC分类号： G06F13/28
CPC分类号： G06F12/0831
摘要： A cache coherent data processing system includes at least first and second coherency domains. In a first cache memory within the first coherency domain of the data processing system, a memory block is held in a storage location associated with an address tag and a coherency state field. A determination is made if a home system memory assigned an address associated with the memory block is within the first coherency domain. If not, the coherency state field is set to a coherency state that indicates that the address tag is valid, that the storage location does not contain valid data, the first coherency domain does not contain the home system memory, and that, following formation of the coherency state, the memory block is cached outside of the first coherency domain.
摘要翻译：缓存相干数据处理系统至少包括第一和第二相干域。在数据处理系统的第一相关域内的第一高速缓存存储器中，存储块被保存在与地址标签和一致性状态字段相关联的存储位置中。如果分配了与存储器块相关联的地址的归属系统存储器在第一相干域内，则确定。如果不是，则将一致性状态字段设置为指示地址标签有效的一致性状态，即存储位置不包含有效数据，第一相干域不包含家庭系统存储器，并且在形成一致性状态下，内存块被缓存在第一个相干域之外。

7. 发明申请

US20060277370A1 Data processing system and method for selectively updating an invalid coherency state in response to snooping a castout 有权
公开(公告)号：US20060277370A1
公开(公告)日：2006-12-07
申请号：US11146443
申请日：2005-06-06
申请人： Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
发明人： Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
IPC分类号： G06F13/28
CPC分类号： G06F12/0831 , G06F12/0813
摘要： In an entry of a first cache memory within a first coherency domain of a data processing system including at least first and second coherency domains, a coherency state field is set to a first state that indicates that an associated address tag is valid, an associated storage location does not contain valid data, and a memory block identified by the address tag is likely cached outside the first coherency domain. In response to snooping a castout operation, the first cache memory determines if the castout operation hits in the entry and, if so, updates the coherency state field from the first state to a second state indicating that the associated address tag is invalid.

8. 发明申请

US20060184748A1 Reducing number of rejected snoop requests by extending time to respond to snoop request 失效
公开(公告)号：US20060184748A1
公开(公告)日：2006-08-17
申请号：US11056740
申请日：2005-02-11
申请人： Benjiman Goodman , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
发明人： Benjiman Goodman , Guy Guthrie , William Starke , Jeffrey Stuecheli , Derek Williams
IPC分类号： G06F13/28
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.

9. 发明申请

US20070168639A1 Data processing system and method for selecting a scope of broadcast of an operation by reference to a translation table 审中-公开
标题翻译：参考翻译表选择操作的广播范围的数据处理系统和方法
公开(公告)号：US20070168639A1
公开(公告)日：2007-07-19
申请号：US11333607
申请日：2006-01-17
申请人： John McCalpin , William Starke , Jeffrey Stuecheli , Derek Williams
发明人： John McCalpin , William Starke , Jeffrey Stuecheli , Derek Williams
IPC分类号： G06F12/00
CPC分类号： G06F12/0831 , G06F12/0833 , G06F12/10 , G06F2212/507
摘要： A data processing system includes at least first and second coherency domains coupled by an interconnect fabric. A memory coupled to the interconnect fabric includes an address translation table having a translation table entry utilized to translate virtual memory addresses to real memory addresses. The translation table entry also includes scope information for broadcast operations targeting addresses within a memory region associated with the translation table entry. Scope prediction logic within the first coherency domain predictively selects a scope of broadcast of an operation on an interconnect fabric of the data processing system by reference to the scope information within the address translation table entry.
摘要翻译：数据处理系统至少包括由互连结构耦合的第一和第二相干域。耦合到互连结构的存储器包括具有用于将虚拟存储器地址转换为实际存储器地址的转换表项的地址转换表。转换表条目还包括针对与转换表条目相关联的存储器区域内的地址的广播操作的范围信息。第一相干域内的范围预测逻辑通过参考地址转换表条目中的范围信息预测性地选择数据处理系统的互连结构上的操作的广播范围。

10. 发明申请

US20060271743A1 Data processing system, cache system and method for passively scrubbing a domain indication 失效
公开(公告)号：US20060271743A1
公开(公告)日：2006-11-30
申请号：US11136652
申请日：2005-05-24
申请人： Leo Clark , James Fields , Guy Guthrie , William Starke , Derek Williams
发明人： Leo Clark , James Fields , Guy Guthrie , William Starke , Derek Williams
IPC分类号： G06F13/28
CPC分类号： G06F12/0831
摘要： Scrubbing logic in a local coherency domain issues a domain query request to at least one cache hierarchy in a remote coherency domain. The domain query request is a non-destructive probe of a coherency state associated with a target memory block by the at least one cache hierarchy. A coherency response to the domain query request is received. In response to the coherency response indicating that the target memory block is not cached in the remote coherency domain, a domain indication in the local coherency domain is updated to indicate that the target memory block is cached, if at all, only within the local coherency domain.

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