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公开(公告)号:US20110010502A1
公开(公告)日:2011-01-13
申请号:US12500768
申请日:2009-07-10
申请人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
发明人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
CPC分类号: G06F12/128 , G06F12/0864 , G06F12/121 , G06F12/123
摘要: In an embodiment, a cache stores tags for cache blocks stored in the cache. Each tag may include an indication identifying which of two or more replacement policies supported by the cache is in use for the corresponding cache block, and a replacement record indicating the status of the corresponding cache block in the replacement policy. Requests may include a replacement attribute that identifies the desired replacement policy for the cache block accessed by the request. If the request is a miss in the cache, a cache block storage location may be allocated to store the corresponding cache block. The tag associated with the cache block storage location may be updated to include the indication of the desired replacement policy, and the cache may manage the block in accordance with the policy. For example, in an embodiment, the cache may support both an LRR and an LRU policy.
摘要翻译: 在一个实施例中,高速缓存存储存储在高速缓存中的高速缓存块的标签。 每个标签可以包括标识由高速缓存支持的两个或多个替换策略中哪一个正在用于对应的高速缓存块的指示,以及指示替换策略中对应的高速缓存块的状态的替换记录。 请求可以包括标识用于请求访问的高速缓存块的期望替换策略的替换属性。 如果请求是高速缓存中的错过,则可以分配高速缓存块存储位置以存储相应的高速缓存块。 与高速缓存块存储位置相关联的标签可以被更新以包括期望的替换策略的指示,并且高速缓存可以根据策略来管理块。 例如,在一个实施例中,高速缓存可以支持LRR和LRU策略。
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公开(公告)号:US08392658B2
公开(公告)日:2013-03-05
申请号:US12500768
申请日:2009-07-10
申请人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
发明人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
IPC分类号: G06F12/00
CPC分类号: G06F12/128 , G06F12/0864 , G06F12/121 , G06F12/123
摘要: In an embodiment, a cache stores tags for cache blocks stored in the cache. Each tag may include an indication identifying which of two or more replacement policies supported by the cache is in use for the corresponding cache block, and a replacement record indicating the status of the corresponding cache block in the replacement policy. Requests may include a replacement attribute that identifies the desired replacement policy for the cache block accessed by the request. If the request is a miss in the cache, a cache block storage location may be allocated to store the corresponding cache block. The tag associated with the cache block storage location may be updated to include the indication of the desired replacement policy, and the cache may manage the block in accordance with the policy. For example, in an embodiment, the cache may support both an LRR and an LRU policy.
摘要翻译: 在一个实施例中,高速缓存存储存储在高速缓存中的高速缓存块的标签。 每个标签可以包括标识由高速缓存支持的两个或多个替换策略中哪一个正在用于对应的高速缓存块的指示,以及指示替换策略中对应的高速缓存块的状态的替换记录。 请求可以包括标识用于请求访问的高速缓存块的期望替换策略的替换属性。 如果请求是高速缓存中的错过,则可以分配高速缓存块存储位置以存储对应的高速缓存块。 与高速缓存块存储位置相关联的标签可以被更新以包括期望的替换策略的指示,并且高速缓存可以根据策略来管理块。 例如,在一个实施例中,高速缓存可以支持LRR和LRU策略。
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公开(公告)号:US20120278557A1
公开(公告)日:2012-11-01
申请号:US13545526
申请日:2012-07-10
申请人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
发明人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
IPC分类号: G06F12/08
CPC分类号: G06F3/0631 , G06F3/0604 , G06F3/0638 , G06F3/0673 , G06F12/0802 , G06F12/0831 , G06F12/0848 , G06F12/0853 , G06F12/0864 , G06F12/0877 , G06F12/125 , G06F2212/1021 , G06F2212/2515 , G06F2212/282 , G06F2212/601 , G06F2212/62 , Y02D10/13
摘要: In one embodiment, a memory that is delineated into transparent and non-transparent portions. The transparent portion may be controlled by a control unit coupled to the memory, along with a corresponding tag memory. The non-transparent portion may be software controlled by directly accessing the non-transparent portion via an input address. In an embodiment, the memory may include a decoder configured to decode the address and select a location in either the transparent or non-transparent portion. Each request may include a non-transparent attribute identifying the request as either transparent or non-transparent. In an embodiment, the size of the transparent portion may be programmable. Based on the non-transparent attribute indicating transparent, the decoder may selectively mask bits of the address based on the size to ensure that the decoder only selects a location in the transparent portion.
摘要翻译: 在一个实施例中,描绘为透明和非透明部分的存储器。 透明部分可以由耦合到存储器的控制单元以及对应的标签存储器来控制。 非透明部分可以通过经由输入地址直接访问不透明部分来进行软件控制。 在一个实施例中,存储器可以包括解码器,其被配置为对该地址进行解码并选择透明部分或非透明部分中的位置。 每个请求可以包括将该请求标识为透明或不透明的不透明属性。 在一个实施例中,透明部分的尺寸可以是可编程的。 基于指示透明的非透明属性,解码器可以基于大小来选择性地屏蔽地址的位,以确保解码器仅选择透明部分中的位置。
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公开(公告)号:US08244981B2
公开(公告)日:2012-08-14
申请号:US12500747
申请日:2009-07-10
申请人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
发明人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
IPC分类号: G06F12/00
CPC分类号: G06F3/0631 , G06F3/0604 , G06F3/0638 , G06F3/0673 , G06F12/0802 , G06F12/0831 , G06F12/0848 , G06F12/0853 , G06F12/0864 , G06F12/0877 , G06F12/125 , G06F2212/1021 , G06F2212/2515 , G06F2212/282 , G06F2212/601 , G06F2212/62 , Y02D10/13
摘要: In one embodiment, a memory that is delineated into transparent and non-transparent portions. The transparent portion may be controlled by a control unit coupled to the memory, along with a corresponding tag memory. The non-transparent portion may be software controlled by directly accessing the non-transparent portion via an input address. In an embodiment, the memory may include a decoder configured to decode the address and select a location in either the transparent or non-transparent portion. Each request may include a non-transparent attribute identifying the request as either transparent or non-transparent. In an embodiment, the size of the transparent portion may be programmable. Based on the non-transparent attribute indicating transparent, the decoder may selectively mask bits of the address based on the size to ensure that the decoder only selects a location in the transparent portion.
摘要翻译: 在一个实施例中,描绘为透明和非透明部分的存储器。 透明部分可以由耦合到存储器的控制单元以及对应的标签存储器来控制。 非透明部分可以通过经由输入地址直接访问不透明部分来进行软件控制。 在一个实施例中,存储器可以包括解码器,其被配置为对该地址进行解码并选择透明部分或非透明部分中的位置。 每个请求可以包括将该请求标识为透明或不透明的不透明属性。 在一个实施例中,透明部分的尺寸可以是可编程的。 基于指示透明的非透明属性,解码器可以基于大小来选择性地屏蔽地址的位,以确保解码器仅选择透明部分中的位置。
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公开(公告)号:US20110010520A1
公开(公告)日:2011-01-13
申请号:US12500810
申请日:2009-07-10
申请人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
发明人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
CPC分类号: G06F12/0802 , G06F12/0223 , G06F12/08 , G06F2212/2515 , Y02D10/13
摘要: In an embodiment, a non-transparent memory unit is provided which includes a non-transparent memory and a control circuit. The control circuit may manage the non-transparent memory as a set of non-transparent memory blocks. Software executing on one or more processors may request a non-transparent memory block in which to process data. The control circuit may allocate a first block, and may return an address (or other indication) of the allocated block so that the software can access the block. The control circuit may also provide automatic data movement between the non-transparent memory and a main memory system to which the non-transparent memory unit is coupled. For example, the automatic data movement may include filling data from the main memory system to the allocated block, or flushing the data in the allocated block to the main memory system after the processing of the allocated block is complete.
摘要翻译: 在一个实施例中,提供了一种非透明存储器单元,其包括非透明存储器和控制电路。 控制电路可以将非透明存储器作为一组非透明存储器块进行管理。 在一个或多个处理器上执行的软件可以请求处理数据的非透明存储器块。 控制电路可以分配第一块,并且可以返回所分配的块的地址(或其他指示),使得软件可以访问块。 控制电路还可以在非透明存储器与非透明存储器单元耦合到的主存储器系统之间提供自动数据移动。 例如,自动数据移动可以包括在分配的块的处理完成之后从主存储器系统填充数据到所分配的块,或者将分配的块中的数据刷新到主存储器系统。
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公开(公告)号:US08219758B2
公开(公告)日:2012-07-10
申请号:US12500810
申请日:2009-07-10
申请人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
发明人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
CPC分类号: G06F12/0802 , G06F12/0223 , G06F12/08 , G06F2212/2515 , Y02D10/13
摘要: In an embodiment, a non-transparent memory unit is provided which includes a non-transparent memory and a control circuit. The control circuit may manage the non-transparent memory as a set of non-transparent memory blocks. Software executing on one or more processors may request a non-transparent memory block in which to process data. The control circuit may allocate a first block, and may return an address (or other indication) of the allocated block so that the software can access the block. The control circuit may also provide automatic data movement between the non-transparent memory and a main memory system to which the non-transparent memory unit is coupled. For example, the automatic data movement may include filling data from the main memory system to the allocated block, or flushing the data in the allocated block to the main memory system after the processing of the allocated block is complete.
摘要翻译: 在一个实施例中,提供了一种非透明存储器单元,其包括非透明存储器和控制电路。 控制电路可以将非透明存储器作为一组非透明存储器块进行管理。 在一个或多个处理器上执行的软件可以请求处理数据的非透明存储器块。 控制电路可以分配第一块,并且可以返回所分配的块的地址(或其他指示),使得软件可以访问块。 控制电路还可以在非透明存储器与非透明存储器单元耦合到的主存储器系统之间提供自动数据移动。 例如,自动数据移动可以包括在分配的块的处理完成之后从主存储器系统填充数据到所分配的块,或者将分配的块中的数据刷新到主存储器系统。
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公开(公告)号:US08566526B2
公开(公告)日:2013-10-22
申请号:US13545526
申请日:2012-07-10
申请人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
发明人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
IPC分类号: G06F13/00
CPC分类号: G06F3/0631 , G06F3/0604 , G06F3/0638 , G06F3/0673 , G06F12/0802 , G06F12/0831 , G06F12/0848 , G06F12/0853 , G06F12/0864 , G06F12/0877 , G06F12/125 , G06F2212/1021 , G06F2212/2515 , G06F2212/282 , G06F2212/601 , G06F2212/62 , Y02D10/13
摘要: In one embodiment, a memory that is delineated into transparent and non-transparent portions. The transparent portion may be controlled by a control unit coupled to the memory, along with a corresponding tag memory. The non-transparent portion may be software controlled by directly accessing the non-transparent portion via an input address. In an embodiment, the memory may include a decoder configured to decode the address and select a location in either the transparent or non-transparent portion. Each request may include a non-transparent attribute identifying the request as either transparent or non-transparent. In an embodiment, the size of the transparent portion may be programmable. Based on the non-transparent attribute indicating transparent, the decoder may selectively mask bits of the address based on the size to ensure that the decoder only selects a location in the transparent portion.
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公开(公告)号:US20110010504A1
公开(公告)日:2011-01-13
申请号:US12500747
申请日:2009-07-10
申请人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
发明人: James Wang , Zongjian Chen , James B. Keller , Timothy J. Millet
CPC分类号: G06F3/0631 , G06F3/0604 , G06F3/0638 , G06F3/0673 , G06F12/0802 , G06F12/0831 , G06F12/0848 , G06F12/0853 , G06F12/0864 , G06F12/0877 , G06F12/125 , G06F2212/1021 , G06F2212/2515 , G06F2212/282 , G06F2212/601 , G06F2212/62 , Y02D10/13
摘要: In one embodiment, a memory that is delineated into transparent and non-transparent portions. The transparent portion may be controlled by a control unit coupled to the memory, along with a corresponding tag memory. The non-transparent portion may be software controlled by directly accessing the non-transparent portion via an input address. In an embodiment, the memory may include a decoder configured to decode the address and select a location in either the transparent or non-transparent portion. Each request may include a non-transparent attribute identifying the request as either transparent or non-transparent. In an embodiment, the size of the transparent portion may be programmable. Based on the non-transparent attribute indicating transparent, the decoder may selectively mask bits of the address based on the size to ensure that the decoder only selects a location in the transparent portion.
摘要翻译: 在一个实施例中,描绘为透明和非透明部分的存储器。 透明部分可以由耦合到存储器的控制单元以及对应的标签存储器来控制。 非透明部分可以通过经由输入地址直接访问不透明部分来进行软件控制。 在一个实施例中,存储器可以包括解码器,其被配置为对该地址进行解码并选择透明部分或非透明部分中的位置。 每个请求可以包括将该请求标识为透明或不透明的不透明属性。 在一个实施例中,透明部分的尺寸可以是可编程的。 基于指示透明的非透明属性,解码器可以基于大小来选择性地屏蔽地址的位,以确保解码器仅选择透明部分中的位置。
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公开(公告)号:US08078772B2
公开(公告)日:2011-12-13
申请号:US12908605
申请日:2010-10-20
申请人: James Wang , Zongjian Chen , James B. Keller
发明人: James Wang , Zongjian Chen , James B. Keller
CPC分类号: G06F5/14
摘要: In one embodiment, an apparatus comprises a first clocked storage device operable in a first clock domain corresponding to a first clock signal. The first clocked storage device has an input coupled to receive one or more bits transmitted on the input from a second clock domain corresponding to a second clock signal. The apparatus further comprises control circuitry configured to ensure that a change in a value of the one or more bits transmitted on the input meets setup and hold time requirements of the first clocked storage device. The control circuitry is responsive to a sample history of one of the first clock signal or the second clock signal to detect a phase relationship between the first clock signal and the second clock signal on each clock cycle to ensure the change meets the setup and hold time requirements.
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公开(公告)号:US20110035518A1
公开(公告)日:2011-02-10
申请号:US12908605
申请日:2010-10-20
申请人: James Wang , Zongjian Chen , James B. Keller
发明人: James Wang , Zongjian Chen , James B. Keller
IPC分类号: G06F5/00
CPC分类号: G06F5/14
摘要: In one embodiment, an apparatus comprises a first clocked storage device operable in a first clock domain corresponding to a first clock signal. The first clocked storage device has an input coupled to receive one or more bits transmitted on the input from a second clock domain corresponding to a second clock signal. The apparatus further comprises control circuitry configured to ensure that a change in a value of the one or more bits transmitted on the input meets setup and hold time requirements of the first clocked storage device. The control circuitry is responsive to a sample history of one of the first clock signal or the second clock signal to detect a phase relationship between the first clock signal and the second clock signal on each clock cycle to ensure the change meets the setup and hold time requirements.
摘要翻译: 在一个实施例中,一种装置包括可在对应于第一时钟信号的第一时钟域中操作的第一时钟存储装置。 第一时钟存储设备具有耦合以接收从对应于第二时钟信号的第二时钟域在输入上发送的一个或多个位的输入。 该装置还包括控制电路,其被配置为确保在输入上传输的一个或多个位的值的变化满足第一时钟存储设备的建立和保持时间要求。 控制电路响应于第一时钟信号或第二时钟信号之一的采样历史,以在每个时钟周期上检测第一时钟信号和第二时钟信号之间的相位关系,以确保改变满足建立和保持时间 要求。
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