公开(公告)号：WO2009000857A1

公开(公告)日：2008-12-31

申请号：PCT/EP2008/058082

申请日：2008-06-25

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  BARTLEY, Gerald, Keith ,  BORKENHAGEN, John, Michael ,  GERMANN, Philip, Raymond

Inventor： BARTLEY, Gerald, Keith ,  BORKENHAGEN, John, Michael ,  GERMANN, Philip, Raymond

IPC: G06F13/16

CPC classification number: G06F13/1684 ,  G06F12/084 ,  Y02D10/13 ,  Y02D10/14

Abstract: A memory module contains a first interface for receiving data access commands and a second interface for re-transmitting data access commands to other memory modules, the second interface propagating multiple copies of received data access commands to multiple other memory modules. The memory module is preferably used in a high-capacity memory subsystem organized in a tree configuration in which data accesses are interleaved. Preferably, the memory module has multiple-mode operation, one of which supports multiple replication of commands and another of which supports conventional daisy-chaining.

Abstract translation: 存储器模块包括用于接收数据访问命令的第一接口和用于将数据访问命令重新传送到其他存储器模块的第二接口，第二接口将接收的数据访问命令的多个副本传播到多个其他存储器模块。 存储器模块优选地用于以数据访问交错的树形结构中组织的高容量存储器子系统。 优选地，存储器模块具有多模式操作，其中之一支持命令的多个复制，另一个支持传统的菊花链。

公开(公告)号：WO2007042428A2

公开(公告)日：2007-04-19

申请号：PCT/EP2006066999

申请日：2006-10-03

Applicant: IBM ,  IBM UK ,  BARTLEY GERALD KEITH ,  BORKENHAGEN JOHN MICHAEL ,  HOVIS WILLIAM PAUL ,  KOLZ DANIEL PAUL

Inventor： BARTLEY GERALD KEITH ,  BORKENHAGEN JOHN MICHAEL ,  HOVIS WILLIAM PAUL ,  KOLZ DANIEL PAUL

CPC classification number: G06F13/28

Abstract: An apparatus includes a virtual memory manager that moves data from a first block (A) to a second block (B) in memory. When the virtual memory manager is ready to transfer data from the first block to the second block, a third, temporary block (C) of memory is defined. The translation table in a DMA controller is changed to point DMA transfers that target the first block to instead target the temporary block. The virtual memory manager then transfers data from the first block to the second block. When the transfer is complete, a check is made to see if the DMA transferred data to the temporary block while the data from the first block was being written to the second block. If so, the data written to the temporary block is written to the second block. A hardware register is preferably used to efficiently detect changes to the temporary block.

Abstract translation: 一种装置包括将数据从第一块（A）移动到存储器中的第二块（B）的虚拟存储器管理器。 当虚拟存储器管理器准备好将数据从第一块传送到第二块时，定义了第三个临时块（C）。 将DMA控制器中的转换表更改为将目标为第一个块的DMA传输指向临时块。 然后，虚拟存储器管理器将数据从第一块传送到第二块。 当传输完成时，检查DMA是否将数据传输到临时块，而第一个块的数据正在写入第二个块。 如果是这样，则将写入临时块的数据写入第二块。 优选地使用硬件寄存器来有效地检测对临时块的改变。

公开(公告)号：WO2007042428A3

公开(公告)日：2007-04-19

申请号：PCT/EP2006/066999

申请日：2006-10-03

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  IBM UNITED KINGDOM LIMITED ,  BARTLEY, Gerald Keith ,  BORKENHAGEN, John Michael ,  HOVIS, William Paul ,  KOLZ, Daniel Paul

Inventor： BARTLEY, Gerald Keith ,  BORKENHAGEN, John Michael ,  HOVIS, William Paul ,  KOLZ, Daniel Paul

IPC: G06F13/28

Abstract: An apparatus includes a virtual memory manager that moves data from a first block (A) to a second block (B) in memory. When the virtual memory manager is ready to transfer data from the first block to the second block, a third, temporary block (C) of memory is defined. The translation table in a DMA controller is changed to point DMA transfers that target the first block to instead target the temporary block. The virtual memory manager then transfers data from the first block to the second block. When the transfer is complete, a check is made to see if the DMA transferred data to the temporary block while the data from the first block was being written to the second block. If so, the data written to the temporary block is written to the second block. A hardware register is preferably used to efficiently detect changes to the temporary block.