发明申请
US20060184769A1 Localized generation of global flush requests while guaranteeing forward progress of a processor 审中-公开
本地化的全局刷新请求,同时保证处理器的进度

Localized generation of global flush requests while guaranteeing forward progress of a processor
摘要:
Localized generation of global flush requests while providing a means for increasing the likelihood of forward progress in a controlled fashion. Local hazard (error) detection is accomplished with a trigger network situated between execution units and configurable state machines that track trigger events. Once a hazardous state is detected, a local detection mechanism requests a workaround flush from the flush control logic. The processor is flushed and a centralized workaround control is informed of the workaround flush. The centralized control blocks subsequent workaround flushes until forward progress has been made. The centralized control can also optionally send out a control to activate a set of localized workarounds or reduced performance modes to avoid the hazardous condition once instructions are re-executed after the flush until a configurable amount of forward progress has been made.
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