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公开(公告)号：US07970970B2
公开(公告)日：2011-06-28
申请号：US12787865
申请日：2010-05-26
IPC分类号： G06F13/00
CPC分类号： G06F13/362 , G06F13/4022
摘要： In one embodiment, a switch is configured to be coupled to an interconnect. The switch comprises a plurality of storage locations and an arbiter control circuit coupled to the plurality of storage locations. The plurality of storage locations are configured to store a plurality of requests transmitted by a plurality of agents. The arbiter control circuit is configured to arbitrate among the plurality of requests stored in the plurality of storage locations. A selected request is the winner of the arbitration, and the switch is configured to transmit the selected request from one of the plurality of storage locations onto the interconnect. In another embodiment, a system comprises a plurality of agents, an interconnect, and the switch coupled to the plurality of agents and the interconnect. In another embodiment, a method is contemplated.
摘要翻译： 在一个实施例中，开关被配置为耦合到互连。 开关包括多个存储位置和耦合到多个存储位置的仲裁器控制电路。 多个存储位置被配置为存储由多个代理发送的多个请求。 仲裁器控制电路被配置为在存储在多个存储位置中的多个请求之间进行仲裁。 所选择的请求是仲裁的赢家，并且交换机被配置为将所选择的请求从多个存储位置之一发送到互连上。 在另一个实施例中，系统包括多个代理，互连和耦合到多个代理和互连的开关。 在另一个实施例中，预期了一种方法。
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公开(公告)号：US20090055568A1
公开(公告)日：2009-02-26
申请号：US12263255
申请日：2008-10-31
IPC分类号： G06F13/14
CPC分类号： G06F13/362 , G06F13/4022
摘要： In one embodiment, a switch is configured to be coupled to an interconnect. The switch comprises a plurality of storage locations and an arbiter control circuit coupled to the plurality of storage locations. The plurality of storage locations are configured to store a plurality of requests transmitted by a plurality of agents. The arbiter control circuit is configured to arbitrate among the plurality of requests stored in the plurality of storage locations. A selected request is the winner of the arbitration, and the switch is configured to transmit the selected request from one of the plurality of storage locations onto the interconnect. In another embodiment, a system comprises a plurality of agents, an interconnect, and the switch coupled to the plurality of agents and the interconnect. In another embodiment, a method is contemplated.
摘要翻译： 在一个实施例中，开关被配置为耦合到互连。 开关包括多个存储位置和耦合到多个存储位置的仲裁器控制电路。 多个存储位置被配置为存储由多个代理发送的多个请求。 仲裁器控制电路被配置为在存储在多个存储位置中的多个请求之间进行仲裁。 所选择的请求是仲裁的赢家，并且交换机被配置为将所选择的请求从多个存储位置之一发送到互连上。 在另一个实施例中，系统包括多个代理，互连和耦合到多个代理和互连的开关。 在另一个实施例中，预期了一种方法。
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公开(公告)号：US07752366B2
公开(公告)日：2010-07-06
申请号：US12263255
申请日：2008-10-31
IPC分类号： G06F13/00
CPC分类号： G06F13/362 , G06F13/4022
摘要： In one embodiment, a switch is configured to be coupled to an interconnect. The switch comprises a plurality of storage locations and an arbiter control circuit coupled to the plurality of storage locations. The plurality of storage locations are configured to store a plurality of requests transmitted by a plurality of agents. The arbiter control circuit is configured to arbitrate among the plurality of requests stored in the plurality of storage locations. A selected request is the winner of the arbitration, and the switch is configured to transmit the selected request from one of the plurality of storage locations onto the interconnect. In another embodiment, a system comprises a plurality of agents, an interconnect, and the switch coupled to the plurality of agents and the interconnect. In another embodiment, a method is contemplated.
摘要翻译： 在一个实施例中，开关被配置为耦合到互连。 开关包括多个存储位置和耦合到多个存储位置的仲裁器控制电路。 多个存储位置被配置为存储由多个代理发送的多个请求。 仲裁器控制电路被配置为在存储在多个存储位置中的多个请求之间进行仲裁。 所选择的请求是仲裁的赢家，并且交换机被配置为将所选择的请求从多个存储位置之一发送到互连上。 在另一个实施例中，系统包括多个代理，互连和耦合到多个代理和互连的开关。 在另一个实施例中，预期了一种方法。
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公开(公告)号：US20100235675A1
公开(公告)日：2010-09-16
申请号：US12787865
申请日：2010-05-26
IPC分类号： G06F13/14 , G06F1/04 , G06F13/362
CPC分类号： G06F13/362 , G06F13/4022
摘要： In one embodiment, a switch is configured to be coupled to an interconnect. The switch comprises a plurality of storage locations and an arbiter control circuit coupled to the plurality of storage locations. The plurality of storage locations are configured to store a plurality of requests transmitted by a plurality of agents. The arbiter control circuit is configured to arbitrate among the plurality of requests stored in the plurality of storage locations. A selected request is the winner of the arbitration, and the switch is configured to transmit the selected request from one of the plurality of storage locations onto the interconnect. In another embodiment, a system comprises a plurality of agents, an interconnect, and the switch coupled to the plurality of agents and the interconnect. In another embodiment, a method is contemplated.
摘要翻译： 在一个实施例中，开关被配置为耦合到互连。 开关包括多个存储位置和耦合到多个存储位置的仲裁器控制电路。 多个存储位置被配置为存储由多个代理发送的多个请求。 仲裁器控制电路被配置为在存储在多个存储位置中的多个请求之间进行仲裁。 所选择的请求是仲裁的赢家，并且交换机被配置为将所选择的请求从多个存储位置之一发送到互连上。 在另一个实施例中，系统包括多个代理，互连和耦合到多个代理和互连的开关。 在另一个实施例中，预期了一种方法。
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公开(公告)号：US07461190B2
公开(公告)日：2008-12-02
申请号：US11201581
申请日：2005-08-11
IPC分类号： G06F13/00
CPC分类号： G06F13/362 , G06F13/4022
摘要： In one embodiment, a switch is configured to be coupled to an interconnect. The switch comprises a plurality of storage locations and an arbiter control circuit coupled to the plurality of storage locations. The plurality of storage locations are configured to store a plurality of requests transmitted by a plurality of agents. The arbiter control circuit is configured to arbitrate among the plurality of requests stored in the plurality of storage locations. A selected request is the winner of the arbitration, and the switch is configured to transmit the selected request from one of the plurality of storage locations onto the interconnect. In another embodiment, a system comprises a plurality of agents, an interconnect, and the switch coupled to the plurality of agents and the interconnect. In another embodiment, a method is contemplated.
摘要翻译： 在一个实施例中，开关被配置为耦合到互连。 开关包括多个存储位置和耦合到多个存储位置的仲裁器控制电路。 多个存储位置被配置为存储由多个代理发送的多个请求。 仲裁器控制电路被配置为在存储在多个存储位置中的多个请求之间进行仲裁。 所选择的请求是仲裁的赢家，并且交换机被配置为将所选择的请求从多个存储位置之一发送到互连上。 在另一个实施例中，系统包括多个代理，互连和耦合到多个代理和互连的开关。 在另一个实施例中，预期了一种方法。
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公开(公告)号：US07269682B2
公开(公告)日：2007-09-11
申请号：US11201573
申请日：2005-08-11
CPC分类号： G06F13/364 , G06F13/4022 , Y02D10/14 , Y02D10/151
摘要： In various embodiments, an apparatus comprises a plurality of agents and an interconnect. In one embodiment, the plurality of agents includes first through fourth agents. The interconnect comprises a plurality of segments that are switchable (e.g. using a plurality of selection circuits) to form communication paths between the agents, and a first segment is included in a first communication path from the first agent to the second agent, and is also included in a second communication path from the third agent to the fourth agent. In another embodiment, each segment is driven by a selection circuit. At least one selection circuit has at least one segment and an output from at least one agent as inputs. In yet another embodiment, an arbiter is configured to determine a communication path on the interconnect for each requesting agent to the destination agent over the segments. The arbiter is configured to arbitrate among a subset of requests for which each segment in the corresponding communication path is available.
摘要翻译： 在各种实施例中，装置包括多个代理和互连。 在一个实施方案中，多种试剂包括第一至第四试剂。 互连包括可切换的多个段（例如，使用多个选择电路）以形成代理之间的通信路径，并且第一段包括在从第一代理到第二代理的第一通信路径中，并且还 包括在从第三代理到第四代理的第二通信路径中。 在另一实施例中，每个段由选择电路驱动。 至少一个选择电路具有至少一个段和来自至少一个代理的输出作为输入。 在另一个实施例中，仲裁器被配置为确定每个请求代理在该互连上的通信路径到该段上的目的地代理。 仲裁器被配置为在对应的通信路径中的每个段可用的请求的子集之间进行仲裁。
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公开(公告)号：US07426601B2
公开(公告)日：2008-09-16
申请号：US11832841
申请日：2007-08-02
CPC分类号： G06F13/364 , G06F13/4022 , Y02D10/14 , Y02D10/151
摘要： In various embodiments, an apparatus comprises a plurality of agents and an interconnect. In one embodiment, the plurality of agents includes first through fourth agents. The interconnect comprises a plurality of segments that are switchable (e.g. using a plurality of selection circuits) to form communication paths between the agents, and a first segment is included in a first communication path from the first agent to the second agent, and is also included in a second communication path from the third agent to the fourth agent. In another embodiment, each segment is driven by a selection circuit. At least one selection circuit has at least one segment and an output from at least one agent as inputs. In yet another embodiment, an arbiter is configured to determine a communication path on the interconnect for each requesting agent to the destination agent over the segments. The arbiter is configured to arbitrate among a subset of requests for which each segment in the corresponding communication path is available.
摘要翻译： 在各种实施例中，装置包括多个代理和互连。 在一个实施方案中，多种试剂包括第一至第四试剂。 互连包括可切换的多个段（例如，使用多个选择电路）以形成代理之间的通信路径，并且第一段包括在从第一代理到第二代理的第一通信路径中，并且还 包括在从第三代理到第四代理的第二通信路径中。 在另一实施例中，每个段由选择电路驱动。 至少一个选择电路具有至少一个段和来自至少一个代理的输出作为输入。 在另一个实施例中，仲裁器被配置为确定每个请求代理在该互连上的通信路径到该段上的目的地代理。 仲裁器被配置为在对应的通信路径中的每个段可用的请求的子集之间进行仲裁。
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公开(公告)号：US07991928B2
公开(公告)日：2011-08-02
申请号：US12408410
申请日：2009-03-20
IPC分类号： G06F3/00 , G06F15/167
CPC分类号： G06F12/0831 , G06F13/362 , G06F13/4213 , Y02D10/13 , Y02D10/14 , Y02D10/151
摘要： An interface unit may comprise a buffer configured to store requests that are to be transmitted on an interconnect and a control unit coupled to the buffer. In one embodiment, the control unit is coupled to receive a retry response from the interconnect during a response phase of a first transaction for a first request stored in the buffer. The control unit is configured to record an identifier supplied on the interconnect with the retry response that identifies a second transaction that is in progress on the interconnect. The control unit is configured to inhibit reinitiation of the first transaction at least until detecting a second transmission of the identifier. In another embodiment, the control unit is configured to assert a retry response during a response phase of a first transaction responsive to a snoop hit of the first transaction on a first request stored in the buffer for which a second transaction is in progress on the interconnect. The control unit is further configured to provide an identifier of the second transaction with the retry response.
摘要翻译： 接口单元可以包括被配置为存储要在互连上发送的请求的缓冲器和耦合到缓冲器的控制单元。 在一个实施例中，控制单元被耦合以在对于存储在缓冲器中的第一请求的第一事务的响应阶段期间从互连接收重试响应。 控制单元被配置为记录在互连上提供的标识符，该重试响应标识互连上正在进行的第二事务。 控制单元被配置为至少在检测到标识符的第二次传输之前禁止第一事务的重新发起。 在另一个实施例中，控制单元被配置为在第一事务的响应阶段响应第一事务的窥探命中在存储在第二事务在互连上的第二事务的缓冲器中的第一请求时断言重试响应 。 控制单元还被配置为提供具有重试响应的第二事务的标识符。
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9.发明授权Combined buffer for snoop, store merging, load miss, and writeback operations 有权组合缓冲区，用于侦听，存储合并，加载错误和回写操作公开(公告)号：US07398361B2
公开(公告)日：2008-07-08
申请号：US11215604
申请日：2005-08-30
IPC分类号： G06F13/00
CPC分类号： G06F12/0831
摘要： In one embodiment, an interface unit comprises an address buffer and a control unit coupled to the address buffer. The address buffer is configured to store addresses of processor core requests generated by a processor core and addresses of snoop requests received from an interconnect. The control unit is configured to maintain a plurality of queues, wherein at least a first queue of the plurality of queues is dedicated to snoop requests and at least a second queue of the plurality of queues is dedicated to processor core requests. Responsive to a first snoop request received by the interface unit from the interconnect, the control unit is configured to allocate a first address buffer entry of the address buffer to store the first snoop request and to store a first pointer to the first address buffer entry in the first queue. Responsive to a first processor core request received by the interface unit from the processor core, the control unit is configured to allocate a second address buffer entry of the address buffer to store the first processor core request and to store a second pointer to the second address buffer entry in the second queue.
摘要翻译： 在一个实施例中，接口单元包括地址缓冲器和耦合到地址缓冲器的控制单元。 地址缓冲器被配置为存储由处理器核心产生的处理器核心请求的地址和从互连接收的窥探请求的地址。 所述控制单元被配置为维护多个队列，其中所述多个队列中的至少第一队列专用于窥探请求，并且所述多个队列中的至少第二队列专用于处理器核心请求。 响应于接口单元从互连接收到的第一窥探请求，控制单元被配置为分配地址缓冲器的第一地址缓冲器条目以存储第一窥探请求，并且将第一指针存储到第一地址缓冲器条目中 第一个队列。 响应于接口单元从处理器核心接收到的第一处理器核心请求，控制单元被配置为分配地址缓冲器的第二地址缓冲器条目以存储第一处理器核心请求并将第二指针存储到第二地址 第二个队列中的缓冲区条目。
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公开(公告)号：US08359414B2
公开(公告)日：2013-01-22
申请号：US13165235
申请日：2011-06-21
IPC分类号： G06F3/00 , G06F15/167
CPC分类号： G06F12/0831 , G06F13/362 , G06F13/4213 , Y02D10/13 , Y02D10/14 , Y02D10/151
摘要： An interface unit may comprise a buffer configured to store requests that are to be transmitted on an interconnect and a control unit coupled to the buffer. In one embodiment, the control unit is coupled to receive a retry response from the interconnect during a response phase of a first transaction for a first request stored in the buffer. The control unit is configured to record an identifier supplied on the interconnect with the retry response that identifies a second transaction that is in progress on the interconnect. The control unit is configured to inhibit reinitiation of the first transaction at least until detecting a second transmission of the identifier. In another embodiment, the control unit is configured to assert a retry response during a response phase of a first transaction responsive to a snoop hit of the first transaction on a first request stored in the buffer for which a second transaction is in progress on the interconnect. The control unit is further configured to provide an identifier of the second transaction with the retry response.
摘要翻译： 接口单元可以包括被配置为存储要在互连上发送的请求的缓冲器和耦合到缓冲器的控制单元。 在一个实施例中，控制单元被耦合以在对于存储在缓冲器中的第一请求的第一事务的响应阶段期间从互连接收重试响应。 控制单元被配置为记录在互连上提供的标识符，该重试响应标识互连上正在进行的第二事务。 控制单元被配置为至少在检测到标识符的第二次传输之前禁止第一事务的重新发起。 在另一个实施例中，控制单元被配置为在第一事务的响应阶段响应第一事务的窥探命中在存储在第二事务在互连上的第二事务的缓冲器中的第一请求时断言重试响应 。 控制单元还被配置为提供具有重试响应的第二事务的标识符。
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