公开(公告)号：US09672298B2

公开(公告)日：2017-06-06

申请号：US14267734

申请日：2014-05-01

Applicant: Oracle International Corporation

Inventor： Zoran Radovic ,  Jared C. Smolens ,  Robert T. Golla ,  Paul J. Jordan ,  Mark A. Luttrell

IPC: G06F17/30 ,  G06F11/08 ,  G06F9/30 ,  G06F9/38

CPC classification number: G06F17/30985 ,  G06F9/30043 ,  G06F9/3834 ,  G06F9/3855 ,  G06F9/3859 ,  G06F11/08 ,  G06F17/30309 ,  G06F17/30507 ,  G06F17/30864

Abstract: Techniques for executing versioned memory access instructions. In one embodiment, a processor is configured to execute versioned store instructions of a first thread within a first mode of operation. In this embodiment, in the first mode of operation, the processor is configured to retire a versioned store instruction only after a version comparison has been performed for the versioned store instruction. In this embodiment the processor is configured to suppress retirement of instructions in the first thread that are younger than an oldest versioned store instruction until the oldest versioned store instruction has retired. In some embodiments, the processor is configured to execute versioned store instructions of a given thread within a second mode of operation, in which the processor is configured to retire outstanding versioned store instructions before a version comparison has been performed.

公开(公告)号：US20150317338A1

公开(公告)日：2015-11-05

申请号：US14267734

申请日：2014-05-01

Applicant: Oracle International Corporation

Inventor： Zoran Radovic ,  Jared C. Smolens ,  Robert T. Golla ,  Paul J. Jordan ,  Mark A. Luttrell

IPC: G06F17/30

CPC classification number: G06F17/30985 ,  G06F9/30043 ,  G06F9/3834 ,  G06F9/3855 ,  G06F9/3859 ,  G06F11/08 ,  G06F17/30309 ,  G06F17/30507 ,  G06F17/30864

Abstract: Techniques for executing versioned memory access instructions. In one embodiment, a processor is configured to execute versioned store instructions of a first thread within a first mode of operation. In this embodiment, in the first mode of operation, the processor is configured to retire a versioned store instruction only after a version comparison has been performed for the versioned store instruction. In this embodiment the processor is configured to suppress retirement of instructions in the first thread that are younger than an oldest versioned store instruction until the oldest versioned store instruction has retired. In some embodiments, the processor is configured to execute versioned store instructions of a given thread within a second mode of operation, in which the processor is configured to retire outstanding versioned store instructions before a version comparison has been performed.

Abstract translation: 用于执行版本化存储器访问指令的技术。 在一个实施例中，处理器被配置为在第一操作模式中执行第一线程的版本化存储指令。 在本实施例中，在第一操作模式中，处理器被配置为仅在版本化存储指令执行了版本比较之后才退出版本化存储指令。 在该实施例中，处理器被配置为抑制第一线程中比最旧的版本化存储指令更年轻的指令的退出，直到最旧的版本化存储指令已经退休。 在一些实施例中，处理器被配置为在第二操作模式中执行给定线程的版本化存储指令，其中处理器被配置为在执行版本比较之前退出未完成的版本化存储指令。