公开(公告)号：US09746908B2

公开(公告)日：2017-08-29

申请号：US14630687

申请日：2015-02-25

Applicant: Advanced Micro Devices, Inc.

Inventor： Yasuko Eckert ,  Derek Hower ,  Marc Orr

IPC: G06F1/32 ,  G06F9/46

CPC classification number: G06F1/3293 ,  G06F1/3243 ,  G06F1/3287 ,  G06F9/46 ,  Y02D10/122 ,  Y02D10/152 ,  Y02D10/171 ,  Y02D50/20

Abstract: A processor prunes state information based on information provided by software, thereby reducing the amount of state information to be stored prior to the processor entering a low-power state. The software, such as an operating system or application program executing at the processor, indicates one or more registers of the processor as storing data that is no longer useful. When preparing to enter the low-power state, the processor omits the indicated registers from the state information stored to memory.

公开(公告)号：US20160246360A1

公开(公告)日：2016-08-25

申请号：US14630687

申请日：2015-02-25

Applicant: Advanced Micro Devices, Inc.

Inventor： Yasuko Eckert ,  Derek Hower ,  Marc Orr

IPC: G06F1/32

CPC classification number: G06F1/3293 ,  G06F1/3243 ,  G06F1/3287 ,  G06F9/46 ,  Y02D10/122 ,  Y02D10/152 ,  Y02D10/171 ,  Y02D50/20

Abstract: A processor prunes state information based on information provided by software, thereby reducing the amount of state information to be stored prior to the processor entering a low-power state. The software, such as an operating system or application program executing at the processor, indicates one or more registers of the processor as storing data that is no longer useful. When preparing to enter the low-power state, the processor omits the indicated registers from the state information stored to memory.

Abstract translation: 处理器基于由软件提供的信息来修剪状态信息，从而减少在处理器进入低功率状态之前要存储的状态信息量。 诸如在处理器执行的操作系统或应用程序的软件将处理器的一个或多个寄存器指示为不再有用的存储数据。 当准备进入低功率状态时，处理器从存储到存储器的状态信息中省略指示的寄存器。