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公开(公告)号：US07424563B2
公开(公告)日：2008-09-09
申请号：US11361402
申请日：2006-02-24
申请人： Michael Egnoah Birenbach , Gregory Lee Brookshire , James Norris Dieffenderfer , Stephen G. Geist , Richard Alan Moore , Thomas Andrew Sartorius , Rodney Wayne Smith
发明人： Michael Egnoah Birenbach , Gregory Lee Brookshire , James Norris Dieffenderfer , Stephen G. Geist , Richard Alan Moore , Thomas Andrew Sartorius , Rodney Wayne Smith
IPC分类号： G06F13/26
CPC分类号： G06F9/4812
摘要： A processor provides two-level interrupt servicing. In one embodiment, the processor comprises a storage device and an interrupt handler. The storage device is configured to store an interrupt identifier corresponding to an interrupt request. The interrupt handler is configured to recognize the interrupt request, initiate a common interrupt service routine responsive to recognizing the interrupt request and subsequently initiate an interrupt service routine corresponding to the stored interrupt identifier.
摘要翻译： 处理器提供两级中断服务。 在一个实施例中，处理器包括存储设备和中断处理程序。 存储装置被配置为存储对应于中断请求的中断标识符。 中断处理程序被配置为识别中断请求，响应于识别中断请求并且随后发起与存储的中断标识符相对应的中断服务程序，启动公共中断服务程序。
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2.发明授权Methods and apparatus for resource sharing in a programmable interrupt controller 失效可编程中断控制器资源共享的方法和装置公开(公告)号：US08244947B2
公开(公告)日：2012-08-14
申请号：US12389413
申请日：2009-02-20
IPC分类号： G06F13/26
摘要： Efficient techniques are described for identifying active interrupt requests to improve performance and reduce power requirements in a processor system. A method to identify active sampled interrupt requests begins with scanning groups of the sampled interrupt requests one group at a time to identify an active interrupt request in any scanned group. A group of interrupt requests is an M/R priority of N sampled interrupt requests, M is the number of priority levels, and R is a resource sharing factor. A group selection circuit is updated to a new group in response to having identified an active interrupt request to improve the latency in processing high priority interrupt requests. Also, groups having active interrupt requests may be identified by early detection or look ahead circuitry. The scanning of groups of interrupt requests may be stopped until the next interrupt request sample point has been reached to reduce power utilization.
摘要翻译： 描述了用于识别活动中断请求以提高性能并降低处理器系统中的功率需求的高效技术。 识别有源采样中断请求的方法首先从一组扫描一组采样中断请求，以识别任何扫描组中的活动中断请求。 一组中断请求是N个采样中断请求的M / R优先级，M是优先级数，R是资源共享因子。 响应于已经识别出用于改善处理高优先级中断请求的等待时间的活动中断请求，组群选择电路被更新为新组。 此外，具有活动中断请求的组可以通过早期检测或预期电路来识别。 中断请求组的扫描可能会停止，直到达到下一个中断请求采样点以降低功耗。
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3.发明申请Methods And Aparatus For Resource Sharing In A Programmable Interrupt Controller 失效可编程中断控制器中资源共享的方法与设备公开(公告)号：US20100217906A1
公开(公告)日：2010-08-26
申请号：US12389413
申请日：2009-02-20
IPC分类号： G06F13/24
摘要： Efficient techniques are described for identifying active interrupt requests to improve performance and reduce power requirements in a processor system. A method to identify active sampled interrupt requests begins with scanning groups of the sampled interrupt requests one group at a time to identify an active interrupt request in any scanned group. A group of interrupt requests is an M/R priority of N sampled interrupt requests, M is the number of priority levels, and R is a resource sharing factor. A group selection circuit is updated to a new group in response to having identified an active interrupt request to improve the latency in processing high priority interrupt requests. Also, groups having active interrupt requests may be identified by early detection or look ahead circuitry. The scanning of groups of interrupt requests may be stopped until the next interrupt request sample point has been reached to reduce power utilization.
摘要翻译： 描述了用于识别活动中断请求以提高性能并降低处理器系统中的功率需求的高效技术。 识别有源采样中断请求的方法首先从一组扫描一组采样中断请求，以识别任何扫描组中的活动中断请求。 一组中断请求是N个采样中断请求的M / R优先级，M是优先级数，R是资源共享因子。 响应于已经识别出用于改善处理高优先级中断请求的等待时间的活动中断请求，组群选择电路被更新为新组。 此外，具有活动中断请求的组可以通过早期检测或预期电路来识别。 中断请求组的扫描可能会停止，直到达到下一个中断请求采样点以降低功耗。
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