公开(公告)号：US20160054928A1

公开(公告)日：2016-02-25

申请号：US14464598

申请日：2014-08-20

Applicant: QUALCOMM INCORPORATED

Inventor： DEXTER TAMIO CHUN ,  SURYANARAYANA CHINA CHITTULURI ,  YANRU LI

IPC: G06F3/06 ,  G06F12/10

CPC classification number: G06F3/0607 ,  G06F3/0631 ,  G06F3/0665 ,  G06F3/0683 ,  G06F12/0246 ,  G06F12/06 ,  G06F12/10 ,  G06F13/1684 ,  G06F2212/1048 ,  G06F2212/152 ,  G06F2212/171 ,  G06F2212/206 ,  G06F2212/214 ,  G06F2212/261 ,  G06F2212/654 ,  G06F2212/7201

Abstract: Systems and methods are disclosed for expanding memory for a system on chip (SoC). A memory card is loaded in an expandable memory socket electrically and is coupled to a system on chip (SoC) via an expansion bus. The memory card comprises a first volatile memory device. In response to detecting the memory card, an expanded virtual memory map is configured. The expanded virtual memory map comprises a first virtual memory space associated the first volatile memory device and a second virtual memory space associated with a second volatile memory device electrically coupled to the SoC via a memory bus. One or more peripheral images associated with the second virtual memory space are relocated to a first portion of the first virtual memory space. A second portion of the first virtual memory space is configured as a block device for performing swap operations associated with the second virtual memory space.

Abstract translation: 公开了用于扩展片上系统（SoC）的存储器的系统和方法。 存储卡电气地装载在可扩展存储器插槽中，并通过扩展总线耦合到片上系统（SoC）。 存储卡包括第一易失性存储器件。 响应于检测到存储卡，配置扩展的虚拟存储器映射。 扩展的虚拟存储器映射包括与第一易失性存储器设备相关联的第一虚拟存储器空间和与经由存储器总线电耦合到SoC的第二易失性存储器设备相关联的第二虚拟存储器空间。 与第二虚拟存储器空间相关联的一个或多个周边图像被重新定位到第一虚拟存储器空间的第一部分。 第一虚拟存储器空间的第二部分被配置为用于执行与第二虚拟存储器空间相关联的交换操作的块设备。