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    • 3. 发明授权
    • Interrupt source controller with scalable state structures
    • 具有可扩展状态结构的中断源控制器
    • US08549202B2
    • 2013-10-01
    • US12850008
    • 2010-08-04
    • Eric N. LaisGregory M. NordstromSteve Thurber
    • Eric N. LaisGregory M. NordstromSteve Thurber
    • G06F13/24
    • G06F13/24
    • A data processing system includes a processor core, a system memory, coupled to the processor core, that includes an interrupt data structure including a plurality of entries each associated with a respective one of a plurality of interrupts. An input/output (I/O) subsystem including at least one I/O host bridge and a plurality of partitionable endpoints (PEs) each having an associated PE number. The I/O host bridge, responsive to receiving a message signaled interrupt (MSI) including at least a message address, determines from the message address a system memory address of a particular entry among the plurality of entries in the interrupt data structure, accesses the particular entry, and, based upon contents of the particular entry, validates authorization of an interrupt source to issue the MSI and presents an interrupt associated with the particular entry for service.
    • 数据处理系统包括耦合到处理器核心的处理器核心,系统存储器,其包括包括与多个中断中的相应一个中断相关联的多个条目的中断数据结构。 包括至少一个I / O主机桥和多个可分割端点(PE)的输入/输出(I / O)子系统,每一个具有相关联的PE号码。 I / O主机桥响应于接收至少包括消息地址的消息信号中断(MSI),从消息地址确定中断数据结构中的多个条目中的特定条目的系统存储器地址,访问 特定条目,并且基于特定条目的内容,验证中断源的授权以发出MSI并呈现与特定条目相关联的用于服务的中断。
    • 7. 发明申请
    • MEMORY MAPPED INPUT/OUTPUT BUS ADDRESS RANGE TRANSLATION FOR VIRTUAL BRIDGES
    • 内存映射输入/输出总线地址范围用于虚拟桥的翻译
    • US20110296074A1
    • 2011-12-01
    • US12787799
    • 2010-05-26
    • Gregory M. NordstromSteven M. ThurberCurtis C. Wollbrink
    • Gregory M. NordstromSteven M. ThurberCurtis C. Wollbrink
    • G06F13/40
    • G06F13/404G06F2213/0058
    • In an embodiment, a south chip comprises a first virtual bridge connected to a shared egress port and a second virtual bridge also connected to the shared egress port. The first virtual bridge receives a first secondary bus identifier, a first subordinate bus identifier, and a first MMIO bus address range from a first north chip. The second virtual bridge receives a second secondary bus identifier, a second subordinate bus identifier, and a second MMIO bus address range from a second north chip. The first virtual bridge stores the first secondary bus identifier, the first subordinate bus identifier, and the first MMIO bus address range. The second virtual bridge stores the second secondary bus identifier, the second subordinate bus identifier, and the second MMIO bus address range. The first north chip and the second north chip are connected to the south chip via respective first and second point-to-point connections.
    • 在一个实施例中,南芯片包括连接到共享出口的第一虚拟桥和还连接到共享出口的第二虚拟桥。 第一虚拟桥接器从第一北芯片接收第一辅助总线标识符,第一从属总线标识符和第一MMIO总线地址范围。 第二虚拟桥从第二北芯片接收第二副总线标识符,第二从属总线标识符和第二MMIO总线地址范围。 第一虚拟桥存储第一副总线标识符,第一下级总线标识符和第一MMIO总线地址范围。 第二虚拟桥存储第二副总线标识符,第二从属总线标识符和第二MMIO总线地址范围。 第一北芯片和第二北芯片通过相应的第一和第二点对点连接连接到南芯片。