Local power gate (LPG) interfaces for power-aware operations
    1.
    发明授权
    Local power gate (LPG) interfaces for power-aware operations 有权
    用于电源感知操作的本地电源门(LPG)接口

    公开(公告)号:US09519324B2

    公开(公告)日:2016-12-13

    申请号:US14225612

    申请日:2014-03-26

    IPC分类号: G06F1/32 G06F9/22

    摘要: Technologies for local power gate (LPG) interfaces for power-aware operations are described. A processor includes locally-gated circuitry of a core, main core circuitry of the core, the main core, and local power gate (LPG) hardware. The LPG hardware is to power gate the locally-gated circuitry according to local power states of the LPG hardware. The main core decodes a first instruction of a set of instructions to perform a first power-aware operation of a specified length, including computing an execution code path for execution. The main core monitors a current local power state of the LPG hardware, selects one of the code paths based on the current local power state, the specified length, and a specified threshold, and issues a hint to the LPG hardware to power up the locally-gated circuitry and continues execution of the first power-aware operation without waiting for the locally-gated circuitry to be powered up.

    摘要翻译: 描述了用于功率感知操作的本地电源门(LPG)接口的技术。 处理器包括核心的本地门控电路,核心的主核心电路,主核心和本地电源门(LPG)硬件。 LPG硬件根据LPG硬件的本地电源状态为本地门控电路供电。 主核心解码一组指令的第一指令以执行指定长度的第一功率感知操作,包括计算用于执行的执行代码路径。 主核心监控LPG硬件的当前本地电源状态,根据当前本地电源状态,指定长度和指定的阈值选择其中一条代码路径,并向LPG硬件发出提示,以启动本地 并且继续执行第一功率感知操作,而不等待本地门控电路被加电。