公开(公告)号：US20150046617A1

公开(公告)日：2015-02-12

申请号：US13964089

申请日：2013-08-11

Applicant: Qualcomm Incorporated

Inventor： MARTYN RYAN SHIRLEN ,  VICTOR WONG

IPC: G06F13/36

CPC classification number: G06F13/36 ,  G06F11/3466 ,  G06F11/364 ,  G06F11/3648 ,  G06F2201/835

Abstract: An integrated circuit includes a trace subsystem that provides timestamps for events occurring in a trace source that does not natively support time stamping trace data. A timestamp inserter is coupled to such a trace source. The timestamp inserter generates a modified trace data stream by arranging a reference or references with the trace information from the trace source on a trace bus. A trace destination receives the modified trace data stream including the reference(s). In some embodiments, a timestamp inserter receives a timestamp request and stores a reference in a buffer. Upon later receipt of trace information associated with the request, the timestamp inserter inserts the reference, a current reference and the received trace information into the trace data stream.

Abstract translation: 集成电路包括跟踪子系统，该跟踪子系统为不在本地支持时间戳跟踪数据的跟踪源中发生的事件提供时间戳。 时间戳插入器耦合到这样的跟踪源。 时间戳插入器通过在跟踪总线上布置来自跟踪源的跟踪信息的引用或引用来生成修改的跟踪数据流。 跟踪目的地接收包括参考的修改的跟踪数据流。 在一些实施例中，时间戳插入器接收时间戳请求并将参考存储在缓冲器中。 在稍后收到与请求相关联的跟踪信息之后，时间戳插入器将参考，当前参考和接收到的跟踪信息插入跟踪数据流。

公开(公告)号：US20160070634A1

公开(公告)日：2016-03-10

申请号：US14479231

申请日：2014-09-05

Applicant: QUALCOMM INCORPORATED

Inventor： MARTYN RYAN SHIRLEN ,  VICTOR WONG

IPC: G06F11/34 ,  G06F1/32

CPC classification number: G06F11/3495 ,  G06F1/3206 ,  G06F1/3287 ,  G06F11/0778 ,  G06F11/0793 ,  G06F11/3013 ,  G06F11/3024 ,  G06F11/3058 ,  G06F11/3065 ,  G06F11/3466 ,  G06F11/3476 ,  G06F11/348 ,  Y02D10/171 ,  Y02D10/34

Abstract: Systems and methods for external access detection and recovery in a subsystem of a system-on-a-chip (SoC) in a portable computing device (PCD) are presented. In operation, a subsystem of the SoC is operated independently of the rest of the SoC, such as when the SoC is in a non-functional or low power mode or state. The subsystem comprises a hardware agent in communication with a trace buffer. While the subsystem is operating independently of the rest of the SoC, the trace buffer captures trace data about the operation of the subsystem. During the operation of the subsystem, in response to identifying a trigger event, the trace buffer stops capturing the trace data, and a wake-up notification comprising a signal from the hardware agent to the SoC is communicated.

Abstract translation: 提出了便携式计算设备（PCD）中的片上系统（SoC）的子系统中外部访问检测和恢复的系统和方法。 在操作中，SoC的子系统独立于SoC的其余部分运行，例如当SoC处于非功能或低功率模式或状态时。 子系统包括与跟踪缓冲器通信的硬件代理。 当子系统独立于SoC的其余部分运行时，跟踪缓冲区捕获有关子系统操作的跟踪数据。 在子系统的操作期间，响应于识别触发事件，跟踪缓冲器停止捕获跟踪数据，并且传送包括从硬件代理到SoC的信号的唤醒通知。

公开(公告)号：US20180034749A1

公开(公告)日：2018-02-01

申请号：US15224735

申请日：2016-08-01

Applicant: QUALCOMM INCORPORATED

Inventor： MARTYN RYAN SHIRLEN

IPC: H04L12/861 ,  H04L12/863 ,  H04L12/923 ,  H04L12/933 ,  H04L29/06

CPC classification number: H04L49/9057 ,  G06F11/3075 ,  G06F11/3476 ,  G06F2201/835 ,  G06F2201/86 ,  H04L47/6245 ,  H04L47/762 ,  H04L49/109 ,  H04L69/28

Abstract: Systems and methods are disclosed for distributing and replaying trigger packets via a variable latency bus interconnect in a trace system. An embodiment of such a method comprises generating a plurality of trigger packets from a plurality of trigger sources on a system on chip. Each trigger packet defines a corresponding event and a corresponding system-generated timestamp. The plurality of trigger packets are distributed from the corresponding trigger sources to a centralized logic analyzer via a variable latency bus interconnect. The received triggered packets are re-ordered according to the corresponding system-generated timestamps into an order in which the corresponding events occurred. The received trigger packets are replayed in the order in which the corresponding events occurred.

公开(公告)号：US20140359374A1

公开(公告)日：2014-12-04

申请号：US13909063

申请日：2013-06-03

Applicant: Qualcomm Incorporated

Inventor： MARTYN RYAN SHIRLEN ,  VICTOR WONG

IPC: G06F11/34

CPC classification number: G06F11/3466 ,  G06F11/3636 ,  G06F11/3656 ,  G06F2201/805

Abstract: Systems, methods, and computer programs for managing trace data in a portable computing device are disclosed. One system includes a system-on-chip and a trace parser. The system-on-chip may have a plurality of trace sources for originating corresponding trace data and a trace system configured to receive and dump the trace data from one of the trace sources to a plurality of trace sinks. The trace parser is configured to reconstruct the trace data dumped to the plurality of trace sinks.

Abstract translation: 公开了用于在便携式计算设备中管理跟踪数据的系统，方法和计算机程序。 一个系统包括片上系统和跟踪解析器。 芯片上系统可以具有用于发起相应跟踪数据的多个跟踪源和被配置为将跟踪数据从一个跟踪源接收和转储到多个跟踪宿的跟踪系统。 跟踪解析器被配置为重建倾倒到多个跟踪接收器的跟踪数据。