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1. 发明授权

US08601235B2 System and method for concurrently managing memory access requests 有权
公开(公告)号：US08601235B2
公开(公告)日：2013-12-03
申请号：US12650068
申请日：2009-12-30
申请人： David B. Glasco , John S. Montrym , Lingfeng Yuan
发明人： David B. Glasco , John S. Montrym , Lingfeng Yuan
IPC分类号： G06F12/00
CPC分类号： G06F12/10 , G06F12/1027 , G06F2212/302 , G06F2212/681 , G06F2212/684
摘要： A shared memory management system and method are described. In one embodiment, a memory management system includes a memory management unit for concurrently managing memory access requests from a plurality of engines. The shared memory management system independently controls access to the context memory without interference from other engine activities. In one exemplary implementation, the memory management unit tracks an identifier for each of the plurality of engines making a memory access request. The memory management unit associates each of the plurality of engines with particular translation information respectively. This translation information is specified by a block bind operation. In one embodiment the translation information is stored in a portion of instance memory. A memory management unit can be non-blocking and can also permit a hit under miss.

2. 发明授权

US08352709B1 Direct memory access techniques that include caching segmentation data 有权
标题翻译：直接内存访问技术，包括缓存分段数据
公开(公告)号：US08352709B1
公开(公告)日：2013-01-08
申请号：US11523830
申请日：2006-09-19
申请人： David B. Glasco , John S. Montrym , Lingfeng Yuan
发明人： David B. Glasco , John S. Montrym , Lingfeng Yuan
IPC分类号： G06F12/06
CPC分类号： G06F12/1063 , G06F12/109
摘要： A memory access technique, in accordance with one embodiment of the present invention, includes caching segmentation data. The technique utilizes a separate memory for storing a plurality of context specifiers and an MMU. The MMU includes an on-chip cache and a segmentation unit. The MMU receives a location of a particular context specifier and a corresponding context index for each of one or more of the plurality of context specifiers stored in the separate memory. The segmentation unit retrieves the particular context specifier and caches it locally. The segmentation unit also binds the cache location of the particular context specifier to the corresponding context index. After caching one or more context specifiers and generating a corresponding binding, the segmentation unit may receive a memory access request that includes a given context index. A given context specifier that is cached locally is accessed by the segmentation unit using the context index to get a base address. The base address from the given context specifier is utilized by the segmentation unit to generate a virtual address for the memory access request.
摘要翻译：根据本发明的一个实施例的存储器访问技术包括缓存分段数据。该技术利用单独的存储器来存储多个上下文说明符和MMU。 MMU包括片上高速缓存和分段单元。 MMU接收存储在单独存储器中的多个上下文说明符中的一个或多个的特定上下文说明符的位置和对应的上下文索引。分割单元检索特定的上下文说明符并将其高速缓存在本地。分割单元还将特定上下文说明符的高速缓存位置绑定到相应的上下文索引。在缓存一个或多个上下文说明符并生成相应的绑定之后，分割单元可以接收包括给定上下文索引的存储器访问请求。本地缓存的给定上下文说明符由分割单元使用上下文索引访问以获得基址。来自给定上下文说明符的基地址由分段单元利用以产生用于存储器访问请求的虚拟地址。

3. 发明授权

US08706975B1 Memory access management block bind system and method 有权
标题翻译：内存访问管理块绑定系统和方法
公开(公告)号：US08706975B1
公开(公告)日：2014-04-22
申请号：US11591685
申请日：2006-11-01
申请人： David B. Glasco , John S. Montrym , Lingfeng Yuan
发明人： David B. Glasco , John S. Montrym , Lingfeng Yuan
IPC分类号： G06F12/00
CPC分类号： G06F12/1036 , G06F12/109
摘要： A shared memory management system and method are described. In one embodiment, a memory management system includes a memory management unit for coordinating context memory storage block binds and independently controlling access to the context memory without interference from other engine activities. In one exemplary implementation the context information is included in a block and the memory management unit binds the block to instance memory. The instance memory can be protected memory. The instance memory can also support multiple channels associated with the plurality of engines. In one exemplary implementation, the instance memory includes a pointer to a page table. The instance memory can also include context save and restore data and each one of the plurality of engines initiates a unique block bind by indicating an association between their engine ID and a given block of instance memory.
摘要翻译：描述共享存储器管理系统和方法。在一个实施例中，存储器管理系统包括用于协调上下文存储器存储块的存储器管理单元，并且独立地控制对上下文存储器的访问，而不受其他引擎活动的干扰。在一个示例性实现中，上下文信息被包括在块中，并且存储器管理单元将块绑定到实例存储器。实例内存可以被保护内存。实例存储器还可以支持与多个引擎相关联的多个通道。在一个示例性实现中，实例存储器包括指向页表的指针。实例存储器还可以包括上下文保存和恢复数据，并且多个引擎中的每一个引擎通过指示其引擎ID和给定的实例存储块之间的关联来发起唯一的块绑定。

4. 发明授权

US08700865B1 Compressed data access system and method 有权
标题翻译：压缩数据访问系统和方法
公开(公告)号：US08700865B1
公开(公告)日：2014-04-15
申请号：US11592819
申请日：2006-11-02
申请人： James M. Van Dyke , John H. Edmondson , Lingfeng Yuan , Brian D. Hutsell
发明人： James M. Van Dyke , John H. Edmondson , Lingfeng Yuan , Brian D. Hutsell
IPC分类号： G06F12/00
CPC分类号： G06F12/08 , G06F12/1009 , G06F2212/401
摘要： A shared resource management system and method are described. In one embodiment a shared resource management system includes a plurality of engines, a shared resource, and a shared resource management unit. In one exemplary implementation the shared resource is a memory and the shared resource management unit is a memory management unit (MMU). The plurality of engines perform processing. The shared resource supports the processing. For example, a memory stores information and instructions for the engines. The shared resource management unit manages memory operations and handles access requests associated with compressed data.
摘要翻译：描述了共享资源管理系统和方法。在一个实施例中，共享资源管理系统包括多个引擎，共享资源和共享资源管理单元。在一个示例性实现中，共享资源是存储器，共享资源管理单元是存储器管理单元（MMU）。多个发动机执行处理。共享资源支持处理。例如，存储器存储引擎的信息和指令。共享资源管理单元管理存储器操作并处理与压缩数据相关联的访问请求。

5. 发明申请

US20140164716A1 OVERRIDE SYSTEM AND METHOD FOR MEMORY ACCESS MANAGEMENT 审中-公开
标题翻译：用于存储器访问管理的覆盖系统和方法
公开(公告)号：US20140164716A1
公开(公告)日：2014-06-12
申请号：US13960739
申请日：2013-08-06
申请人： David B. GLASCO , John S. MONTRYM , Lingfeng YUAN , Robert C. KELLER
发明人： David B. GLASCO , John S. MONTRYM , Lingfeng YUAN , Robert C. KELLER
IPC分类号： G06F12/10 , G06F3/06
CPC分类号： G06F12/1027 , G06F3/0619 , G06F3/0655 , G06F3/0673 , G06F11/073 , G06F11/0793 , G06F2212/681
摘要： A memory management system and method are described. In one embodiment, a memory management system includes a memory management unit for virtualizing context memory storage and independently controlling access to the context memory without interference from other engine activities. The shared resource management unit overrides a stream of access denials (e.g., NACKs) associated with an access problem. The memory management system and method facilitate efficient and flexible access to memory while controlling translation between virtual and physical memory “spaces”. In one embodiment the memory management system includes a translation lookaside buffer and a fill component. The translation lookaside buffer tracks information associating a virtual memory space with a physical memory space. The fill component tracks the status of an access request progress from a plurality of engines independently and faults that occur in attempting to access a memory space
摘要翻译：描述了存储器管理系统和方法。在一个实施例中，存储器管理系统包括用于虚拟化上下文存储器存储并且独立地控制对上下文存储的访问的存储器管理单元，而不受其他引擎活动的干扰。共享资源管理单元覆盖与访问问题相关联的访问拒绝流（例如，NACK）。存储器管理系统和方法有助于有效和灵活地访问存储器，同时控制虚拟和物理存储器“空间”之间的转换。在一个实施例中，存储器管理系统包括翻译后备缓冲器和填充部件。翻译后备缓冲器跟踪将虚拟存储器空间与物理存储器空间相关联的信息。填充组件独立地跟踪来自多个引擎的访问请求进度的状态以及在尝试访问存储空间时发生的故障

6. 发明授权

US08601223B1 Techniques for servicing fetch requests utilizing coalesing page table entries 有权
标题翻译：使用合并页表条目来处理提取请求的技术
公开(公告)号：US08601223B1
公开(公告)日：2013-12-03
申请号：US11586826
申请日：2006-10-24
申请人： Lingfeng Yuan
发明人： Lingfeng Yuan
IPC分类号： G06F12/00
CPC分类号： G06F12/1009 , G06F12/1027 , G06F2212/652
摘要： A memory access technique, in accordance with one embodiment of the present invention, includes coalescing mappings between virtual memory and physical memory when a contiguous plurality of virtual pages map to a contiguous plurality of physical pages. Any of the coalesced page table entries are sufficient to map all pages within the coalesced region. Accordingly, a memory subsystem can redirect one or more pending page table entry fetch requests to an appropriate coalesced page table entry.
摘要翻译：根据本发明的一个实施例的存储器访问技术包括当连续的多个虚拟页面映射到连续的多个物理页面时，在虚拟存储器和物理存储器之间聚合映射。任何合并页表项足以映射合并区域内的所有页面。因此，存储器子系统可将一个或多个挂起的页表取入请求重定向到合适的合并页表项。

7. 发明授权

US08347065B1 System and method for concurrently managing memory access requests 有权
标题翻译：同时管理内存访问请求的系统和方法
公开(公告)号：US08347065B1
公开(公告)日：2013-01-01
申请号：US11592076
申请日：2006-11-01
申请人： David B. Glasco , John S. Montrym , Lingfeng Yuan
发明人： David B. Glasco , John S. Montrym , Lingfeng Yuan
IPC分类号： G06F12/00
CPC分类号： G06F12/10 , G06F12/1027 , G06F2212/302 , G06F2212/681 , G06F2212/684
摘要： A shared memory management system and method are described. In one embodiment, a memory management system includes a memory management unit for concurrently managing memory access requests from a plurality of engines. The shared memory management system independently controls access to the context memory without interference from other engine activities. In one exemplary implementation, the memory management unit tracks an identifier for each of the plurality of engines making a memory access request. The memory management unit associates each of the plurality of engines with particular translation information respectively. This translation information is specified by a block bind operation. In one embodiment the translation information is stored in a portion of instance memory. A memory management unit can be non-blocking and can also permit a hit under miss.
摘要翻译：描述共享存储器管理系统和方法。在一个实施例中，存储器管理系统包括用于同时管理来自多个引擎的存储器访问请求的存储器管理单元。共享内存管理系统独立控制对上下文内存的访问，而不受其他引擎活动的干扰。在一个示例性实现中，存储器管理单元跟踪构成存储器访问请求的多个引擎中的每一个的标识符。存储器管理单元分别将多个引擎中的每一个与特定的翻译信息相关联。该翻译信息由块绑定操作指定。在一个实施例中，翻译信息存储在实例存储器的一部分中。存储器管理单元可以是非阻塞的，并且还可以允许命中。

8. 发明授权

US08607008B1 System and method for independent invalidation on a per engine basis 有权
标题翻译：基于每个引擎的独立无效的系统和方法
公开(公告)号：US08607008B1
公开(公告)日：2013-12-10
申请号：US11591629
申请日：2006-11-01
申请人： David B. Glasco , Lingfeng Yuan
发明人： David B. Glasco , Lingfeng Yuan
IPC分类号： G06F12/00
CPC分类号： G06F12/1027 , G06F12/1009 , G06F2212/681 , G06F2212/682 , G06F2212/683
摘要： A shared resource management system and method are described. In one embodiment a shared resource management system includes a plurality of engines, a shared resource, and a shared resource management unit. In one exemplary implementation the shared resource is a memory and the shared resource management unit is a memory management unit (MMU). The plurality of engines perform processing. The shared resource supports the processing. For example a memory store information and instructions for the engines. The shared resource management unit independently caches and invalidates page table entries on a per engine basis.
摘要翻译：描述了共享资源管理系统和方法。在一个实施例中，共享资源管理系统包括多个引擎，共享资源和共享资源管理单元。在一个示例性实现中，共享资源是存储器，共享资源管理单元是存储器管理单元（MMU）。多个发动机执行处理。共享资源支持处理。例如内存存储信息和引擎说明。共享资源管理单元在每个引擎的基础上独立地高速缓存和使页表条目无效。

9. 发明授权

US08533425B1 Age based miss replay system and method 有权
标题翻译：基于年龄的错误重播系统和方法
公开(公告)号：US08533425B1
公开(公告)日：2013-09-10
申请号：US11591856
申请日：2006-11-01
申请人： Lingfeng Yuan
发明人： Lingfeng Yuan
IPC分类号： G06F12/00
CPC分类号： G06F13/1642 , G06F12/1027
摘要： A shared resource management system and method are described. In one embodiment, a shared resource management system facilitates age based miss replay. In one exemplary implementation, a shared resource management system includes a plurality of engines, and a shared resource a shared resource management unit. The plurality of engines perform processing. The shared resource supports the processing. The shared resource management unit handles multiple outstanding miss requests.
摘要翻译：描述了共享资源管理系统和方法。在一个实施例中，共享资源管理系统便于基于年龄的错误重放。在一个示例性实现中，共享资源管理系统包括多个引擎，共享资源包括共享资源管理单元。多个发动机执行处理。共享资源支持处理。共享资源管理单元处理多个未完成的未命中请求。

10. 发明授权

US08504794B1 Override system and method for memory access management 有权
标题翻译：覆盖内存访问管理的系统和方法
公开(公告)号：US08504794B1
公开(公告)日：2013-08-06
申请号：US11591857
申请日：2006-11-01
申请人： David B. Glasco , John S. Montrym , Lingfeng Yuan , Robert C. Keller
发明人： David B. Glasco , John S. Montrym , Lingfeng Yuan , Robert C. Keller
IPC分类号： G06F12/00
CPC分类号： G06F12/1027 , G06F3/0619 , G06F3/0655 , G06F3/0673 , G06F11/073 , G06F11/0793 , G06F2212/681
摘要： A memory management system and method are described. In one embodiment, a memory management system includes a memory management unit for virtualizing context memory storage and independently controlling access to the context memory without interference from other engine activities. The shared resource management unit overrides a stream of access denials (e.g., NACKs) associated with an access problem. The memory management system and method facilitate access to memory while controlling translation between virtual and physical memory “spaces”. In one embodiment the memory management system includes a translation lookaside buffer and a fill component. The translation lookaside buffer tracks information associating a virtual memory space with a physical memory space. The fill component tracks the status of an access request progress from a plurality of engines independently and faults that occur in attempting to access a memory space.
摘要翻译：描述了存储器管理系统和方法。在一个实施例中，存储器管理系统包括用于虚拟化上下文存储器存储并且独立地控制对上下文存储的访问的存储器管理单元，而不受其他引擎活动的干扰。共享资源管理单元覆盖与访问问题相关联的访问拒绝流（例如，NACK）。存储器管理系统和方法便于访问存储器，同时控制虚拟和物理存储器“空间”之间的转换。在一个实施例中，存储器管理系统包括翻译后备缓冲器和填充部件。翻译后备缓冲器跟踪将虚拟存储器空间与物理存储器空间相关联的信息。填充组件独立地跟踪来自多个引擎的访问请求进度的状态以及在尝试访问存储空间时发生的故障。

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