MID-PRIMITIVE GRAPHICS EXECUTION PREEMPTION
    6.
    发明申请
    MID-PRIMITIVE GRAPHICS EXECUTION PREEMPTION 有权
    中级图形执行预防

    公开(公告)号:US20140184617A1

    公开(公告)日:2014-07-03

    申请号:US13728881

    申请日:2012-12-27

    CPC classification number: G06T1/20

    Abstract: One embodiment of the present invention sets forth a technique for mid-primitive execution preemption. When preemption is initiated no new instructions are issued, in-flight instructions progress to an execution unit boundary, and the execution state is unloaded from the processing pipeline. The execution units within the processing pipeline, including the coarse rasterization unit complete execution of in-flight instructions and become idle. However, rasterization of a triangle may be preempted at a coarse raster region boundary. The amount of context state to be stored is reduced because the execution units are idle. Preempting at the mid-primitive level during rasterization reduces the time from when preemption is initiated to when another process can execute because the entire triangle is not rasterized.

    Abstract translation: 本发明的一个实施例提出了一种用于中原始执行抢占的技术。 当启动抢占时,不会发出新的指令,飞行中的指令进行到执行单位边界,执行状态从处理流水线中卸载。 处理流水线内的执行单元,包括粗略光栅化单元,完成飞行中指令的执行并变为空闲状态。 然而,在粗略的栅格区域边界处,可以抢占三角形的光栅化。 由于执行单元是空闲的,因此减少了要存储的上下文状态量。 在光栅化过程中,在中等原始级别抢占时间减少了从抢占启动到另一个进程可以执行的时间,因为整个三角形不被光栅化。

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