公开(公告)号：US20170262367A1

公开(公告)日：2017-09-14

申请号：US15068184

申请日：2016-03-11

Applicant: QUALCOMM INCORPORATED

Inventor： DEXTER TAMIO CHUN ,  YANRU LI ,  JAVID JAFFARI ,  AMIN ANSARI

IPC: G06F12/08

CPC classification number: G06F12/0802 ,  G06F12/0284 ,  G06F12/0292 ,  G06F12/0607 ,  G06F12/08 ,  G06F12/10 ,  G06F12/1081 ,  G06F2212/1016 ,  G06F2212/1024 ,  G06F2212/1044 ,  G06F2212/152 ,  G06F2212/502 ,  G06F2212/657 ,  G06F2212/7201 ,  G11C7/1075 ,  G11C8/12

Abstract: Systems, methods, and computer programs are disclosed for allocating memory in a hybrid parallel/serial memory system. One method comprises configuring a memory address map for a multi-rank memory system with a dedicated serial access region in a first memory rank and a dedicated parallel access region in a second memory rank. A request is received for a virtual memory page. If the request comprises a performance hint, the virtual memory page is selectively assigned to a free physical page in the dedicated serial access in the first memory rank and the dedicated parallel access region in the second memory rank.

公开(公告)号：US20170160928A1

公开(公告)日：2017-06-08

申请号：US14956728

申请日：2015-12-02

Applicant: QUALCOMM INCORPORATED

Inventor： JAVID JAFFARI ,  Amin Ansari ,  Rodolfo Beraha

IPC: G06F3/06

CPC classification number: G06F3/061 ,  G06F3/0635 ,  G06F3/0658 ,  G06F3/0679 ,  G06F13/1684 ,  G06F13/1694 ,  G06F13/4234

Abstract: Systems and methods are disclosed for a hybrid parallel-serial memory access by a system on chip (SoC). The SoC is electrically coupled to the memory by both a parallel access channel and a separate serial access channel. A request for access to the memory is received. In response to receiving the request to access the memory, a type of memory access is identified. A determination is then made whether to access the memory with the serial access channel. In response to the determination to access the memory with the serial access channel, a first portion of the memory is accessed with the parallel access channel, and a second portion of the memory is accessed with the serial access channel.