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1. 发明授权

US08769344B2 Tracing speculatively executed instructions 有权
标题翻译：跟踪推测执行指令
公开(公告)号：US08769344B2
公开(公告)日：2014-07-01
申请号：US13067603
申请日：2011-06-13
申请人： Paul Anthony Gilkerson , John Michael Horley
发明人： Paul Anthony Gilkerson , John Michael Horley
IPC分类号： G06F11/00
CPC分类号： G06F9/30145 , G06F11/3471 , G06F11/3476 , G06F11/348 , G06F11/3636 , G06F2201/865 , G06F2201/88
摘要： A trace unit for generating items of trace data indicative of processing activities of a processor executing a stream of instructions, The unit includes trace circuitry for monitoring a behavior of the processor; storage circuitry for storing current trace control data for controlling the trace circuitry; a data store for storing at least some of the trace control data; the trace circuitry being configured to store the trace control data in the data store in response to detection of execution of the group of instructions; wherein the trace circuitry is responsive to detecting the at least one processor cancelling at least one group of the speculatively executed instructions to retrieve at least some of the trace control data stored in the data store for the group of instructions executed before the cancelled speculatively executed instructions and to store the retrieved trace control data in the storage circuitry.
摘要翻译：跟踪单元，用于生成指示执行指令流的处理器的处理活动的跟踪数据项。该单元包括用于监视处理器的行为的跟踪电路; 用于存储用于控制跟踪电路的当前跟踪控制数据的存储电路; 用于存储至少一些跟踪控制数据的数据存储器; 所述跟踪电路被配置为响应于对所述指令组的执行的检测而将所述跟踪控制数据存储在所述数据存储器中; 其中所述跟踪电路响应于检测所述至少一个处理器取消所述推测性执行的指令的至少一组，以检索存储在所述数据存储器中的所述跟踪控制数据中的至少一些对于所述取消的推测执行指令之前执行的指令组并将所检索的跟踪控制数据存储在存储电路中。

2. 发明授权

US08417923B2 Data processing apparatus having trace and prediction logic 有权
标题翻译：具有跟踪和预测逻辑的数据处理装置
公开(公告)号：US08417923B2
公开(公告)日：2013-04-09
申请号：US12801273
申请日：2010-06-01
申请人： Michael John Williams , John Michael Horley , Edmond John Simon Ashfield
发明人： Michael John Williams , John Michael Horley , Edmond John Simon Ashfield
IPC分类号： G06F7/38 , G06F9/00 , G06F9/44 , G06F11/00
CPC分类号： G06F9/3808 , G06F9/30054 , G06F9/3806 , G06F9/3844
摘要： A data processing apparatus is disclosed including trace logic for monitoring behavior of a portion of said data processing apparatus and prediction logic for providing at least one prediction as to at least one step of the behavior of the portion of the data processing apparatus. The trace logic monitors behavior of the portion of the data processing apparatus, determines from the monitored behavior whether the at least one prediction is correct, and outputs a prediction indicator indicating whether the at least one prediction is correct.
摘要翻译：公开了一种数据处理装置，其包括用于监视所述数据处理装置的一部分的行为的跟踪逻辑和用于提供关于数据处理装置的该部分的行为的至少一个步骤的至少一个预测的预测逻辑。所述跟踪逻辑监视所述数据处理装置的所述部分的行为，从所监视的行为确定所述至少一个预测是否正确，并输出指示所述至少一个预测是否正确的预测指标。

3. 发明授权

US08037363B2 Generation of trace elements within a data processing apparatus 有权
标题翻译：在数据处理设备内生成微量元素
公开(公告)号：US08037363B2
公开(公告)日：2011-10-11
申请号：US12318397
申请日：2008-12-29
申请人： Michael John Williams , Edmond John Simon Ashfield , John Michael Horley
发明人： Michael John Williams , Edmond John Simon Ashfield , John Michael Horley
IPC分类号： G06F11/00
CPC分类号： G06F11/28
摘要： A data processing apparatus and method for generating trace elements is provided. The data processing apparatus comprises a device for performing a sequence of operations including memory operations on data values having associated data addresses. For at least some of the memory operations the data address is determined relative to an architectural state value of an item of architectural state of the device. Trace logic is provided for receiving indications of the sequence of operations being performed by the device, and for generating from the indications a stream of trace elements. When for a memory operation the data address is determined to have been determined relative to an architectural state value of the item of the architectural state, the trace logic is operable dependent on that item of architectural state to omit at least one of a data address indication and a data value indication from the stream of trace elements generated in respect of that memory operation. A trace analysing apparatus can then be provided to reconstruct such omitted information based on a tracked architectural state value of the relevant item of architectural state.
摘要翻译：提供了一种用于产生微量元素的数据处理装置和方法。数据处理装置包括用于执行包括对具有相关联的数据地址的数据值的存储器操作的操作序列的装置。对于至少一些存储器操作，数据地址相对于设备的架构状态的项目的架构状态值来确定。跟踪逻辑被提供用于接收由设备执行的操作序列的指示，并且用于从指示生成微量元素流。当对于存储器操作，数据地址被确定为相对于体系结构状态的项目的体系结构状态值被确定时，跟踪逻辑可以依赖于该体系结构状态的项来操作以省略数据地址指示以及从该存储器操作生成的微量元素流的数据值指示。然后可以提供跟踪分析装置，以便基于架构状态的相关项目的被跟踪的体系结构状态值来重构这些省略的信息。

4. 发明申请

US20100299562A1 Reducing bandwidth required for trace data 有权
标题翻译：减少跟踪数据所需的带宽
公开(公告)号：US20100299562A1
公开(公告)日：2010-11-25
申请号：US12801273
申请日：2010-06-01
申请人： Michael John Williams , John Michael Horley , Edmond John Simon Ashfield
发明人： Michael John Williams , John Michael Horley , Edmond John Simon Ashfield
IPC分类号： G06F11/28
CPC分类号： G06F9/3808 , G06F9/30054 , G06F9/3806 , G06F9/3844
摘要： A data processing apparatus is disclosed including trace logic for monitoring behaviour of a portion of said data processing apparatus and prediction logic for providing at least one prediction as to at least one step of the behavior of the portion of the data processing apparatus. The trace logic monitors behavior of the portion of the data processing apparatus, determines from the monitored behaviour whether the at least one prediction is correct, and outputs a prediction indicator indicating whether the at least one prediction is correct.
摘要翻译：公开了一种数据处理装置，其包括用于监视所述数据处理装置的一部分的行为的跟踪逻辑和用于提供关于数据处理装置的该部分的行为的至少一个步骤的至少一个预测的预测逻辑。所述跟踪逻辑监视所述数据处理装置的所述部分的行为，从所监视的行为确定所述至少一个预测是否正确，并输出指示所述至少一个预测是否正确的预测指标。

5. 发明申请

US20090089626A1 Techniques for generating a trace stream for a data processing apparatus 有权
标题翻译：用于产生数据处理装置的跟踪流的技术
公开(公告)号：US20090089626A1
公开(公告)日：2009-04-02
申请号：US12232999
申请日：2008-09-26
申请人： Paul Robert Gotch , John Michael Horley
发明人： Paul Robert Gotch , John Michael Horley
IPC分类号： G06F11/34
CPC分类号： G06F11/348 , G06F11/3476 , H03M7/30
摘要： Trace circuitry, and a method of operating such trace circuitry, are provided for generating a trace stream indicative of activities of monitored circuitry of a data processing apparatus. The monitored circuitry produces data elements indicative of those activities, and the trace circuitry comprises trace element generation circuitry which is responsive to at least some of the data elements produced by the monitored circuitry to generate trace elements representative of those data-elements, with the trace elements generated being dependent on a selected trace mode of operation of the trace circuitry. Compression circuitry is then arranged to apply an encoding operation to a sequence of trace elements in order to produce a packet whose bit pattern represents the sequence of trace elements, and to cause that packet to be output in the trace stream, the encoding operation applied being dependent on a current compression scheme associated with the compression circuitry. Whilst in the selected trace mode of operation, the compression circuitry is responsive to a compression change stimulus to change the current compression scheme from a first compression scheme to a second compression scheme whose bit pattern encoding space overlaps the bit pattern encoding space of the first compression scheme, such that following the change of compression scheme any further packets produced whilst in the selected trace mode of operation are produced in accordance with the second compression scheme. Such an approach has been found to provide improved compression efficiency thereby reducing the volume of trace data produced.
摘要翻译：提供跟踪电路和操作这种跟踪电路的方法，用于产生指示数据处理设备的被监测电路的活动的跟踪流。受监控的电路产生指示这些活动的数据元素，并且跟踪电路包括跟踪元件生成电路，其响应于被监视电路产生的至少一些数据元素以生成表示那些数据元素的迹象元素，跟踪轨迹产生的元件取决于迹线电路的选定轨迹操作模式。然后，压缩电路被布置成将编码操作应用于一系列的跟踪元件，以便产生其位模式表示跟踪元件的序列的分组，并且使该分组被输出到跟踪流中，所应用的编码操作是取决于与压缩电路相关联的当前压缩方案。在所选择的跟踪操作模式中，压缩电路响应于压缩变化激励，以将当前压缩方案从第一压缩方案改变为第二压缩方案，其中位模式编码空间与第一压缩的位模式编码空间重叠方案，使得在压缩方案的改变之后，根据第二压缩方案产生在所选择的跟踪操作模式中产生的任何另外的分组。已经发现这种方法提供改进的压缩效率，从而减少所产生的痕量数据的体积。

6. 发明申请

US20080235538A1 Techniques for generating a trace stream for a data processing apparatus 有权
标题翻译：用于产生数据处理装置的跟踪流的技术
公开(公告)号：US20080235538A1
公开(公告)日：2008-09-25
申请号：US12071748
申请日：2008-02-26
申请人： John Michael Horley , Andrew Brookfield Swaine , Thomas Sean Houlihane
发明人： John Michael Horley , Andrew Brookfield Swaine , Thomas Sean Houlihane
IPC分类号： G06F11/30
CPC分类号： G06F11/3476 , G06F11/3466
摘要： A data processing apparatus and method are provided for generating a trace stream. The data processing apparatus comprises logic for producing data elements, and trace logic for producing a stream of trace elements representative of at least some of the data elements. The trace logic has trace generation logic operable to generate trace elements for inclusion in the stream, and is further arranged to generate trace timing indicators for inclusion in the stream. Each trace timing indicator indicates the elapse of one or more processing timing intervals, the processing timing interval being a predetermined plurality of clock cycles.
摘要翻译：提供了一种用于生成跟踪流的数据处理装置和方法。数据处理装置包括用于产生数据元素的逻辑，以及用于产生表示至少一些数据元素的微量元素流的跟踪逻辑。跟踪逻辑具有跟踪生成逻辑，其可操作用于生成用于包含在流中的跟踪元素，并且还被布置为生成用于包含在流中的跟踪时序指示符。每个跟踪定时指示符指示一个或多个处理定时间隔的经过，处理定时间隔是预定的多个时钟周期。

7. 发明授权

US08762744B2 Energy management system configured to generate energy management information indicative of an energy state of processing elements 有权
标题翻译：能量管理系统被配置为产生指示处理元件的能量状态的能量管理信息
公开(公告)号：US08762744B2
公开(公告)日：2014-06-24
申请号：US12085962
申请日：2005-12-06
申请人： Simon Andrew Ford , Daryl Wayne Bradley , George James Milne , John Michael Horley
发明人： Simon Andrew Ford , Daryl Wayne Bradley , George James Milne , John Michael Horley
IPC分类号： G06F1/00 , G06F1/26
CPC分类号： G06F1/3203
摘要： A data processing apparatus and methods are disclosed. The data processing apparatus comprises: data processing elements operable to process data; an energy management unit operable to generate energy management information indicative of an energy state of at least one of the data processing elements when processing said data; and logic operable to receive said energy management information and to generate energy management information items associating said energy state with the processing of said data. The information items can provide visibility of how the Energy State of the data processing elements vary in response to the processing of data. Providing this visibility of the Energy State can advantageously enable more detailed the energy management to be performed and the Energy State of the data processing elements to be optimized.
摘要翻译：公开了一种数据处理装置和方法。数据处理装置包括：可操作以处理数据的数据处理元件; 能量管理单元，用于在处理所述数据时产生指示所述数据处理元件中的至少一个的能量状态的能量管理信息; 以及可操作以接收所述能量管理信息并产生将所述能量状态与所述数据的处理相关联的能量管理信息项的逻辑。信息项可以提供对数据处理元件的能量状态如何响应于数据处理而变化的可见性。提供能量状态的这种可见性可以有利地使得能够更详细地执行能量管理并且优化数据处理元件的能量状态。

8. 发明授权

US08677104B2 System for efficiently tracing data in a data processing system 有权
标题翻译：用于在数据处理系统中高效跟踪数据的系统
公开(公告)号：US08677104B2
公开(公告)日：2014-03-18
申请号：US12929058
申请日：2010-12-27
申请人： Michael Gibbs , Paul Anthony Gilkerson , John Michael Horley
发明人： Michael Gibbs , Paul Anthony Gilkerson , John Michael Horley
IPC分类号： G06F7/38 , G06F9/00 , G06F9/44 , G06F11/00
CPC分类号： G06F9/3844 , G06F9/30054 , G06F9/3806 , G06F9/3808 , G06F11/3636
摘要： A data processing apparatus is provided comprising prediction circuitry for predicting a response of the data processing circuitry at at least one given execution point to execution of a program instruction; tracing circuitry for tracing operation of the data processing apparatus for outputting a prediction indicator indicating whether or not the predicted response is correct; a data store configured to store information relating to the predicted response of said data processing circuitry at the given execution point for use by at least one of said prediction logic and said tracing circuitry a later execution point; and a history buffer configured to store historical information with regard to one or more entries of the data store at a corresponding execution point previous to the given execution point to enable restoration of said data store to a state corresponding to said previous execution point.
摘要翻译：提供了一种数据处理装置，其包括预测电路，用于预测在至少一个给定执行点的数据处理电路对执行程序指令的响应; 跟踪电路，用于跟踪操作数据处理装置，用于输出指示预测响应是否正确的预测指示符; 数据存储器，被配置为存储与给定执行点处的所述数据处理电路的预测响应有关的信息，供所述预测逻辑和所述跟踪电路中的至少一个使用以后的执行点; 以及历史缓冲器，被配置为存储关于在给定执行点之前的对应执行点处的数据存储的一个或多个条目的历史信息，以使所述数据存储恢复到与所述先前执行点相对应的状态。

9. 发明授权

US08533685B2 Processing apparatus, trace unit and diagnostic apparatus 有权
标题翻译：处理装置，跟踪单元和诊断装置
公开(公告)号：US08533685B2
公开(公告)日：2013-09-10
申请号：US13317686
申请日：2011-10-26
申请人： John Michael Horley , Simon John Craske , Michael John Gibbs , Paul Anthony Gilkerson
发明人： John Michael Horley , Simon John Craske , Michael John Gibbs , Paul Anthony Gilkerson
IPC分类号： G06F9/44
CPC分类号： G06F11/3495 , G06F9/30072 , G06F9/30094 , G06F9/30101 , G06F9/30123 , G06F9/30145 , G06F11/348
摘要： A processing circuit 4 is responsive to at least one conditional instruction to perform a conditional operation in dependence on a current value of a subset of at least one condition flag 22. A trace circuit 6 is provided for generating trace data elements indicative of operations performed by the processing circuit 4. When the processing circuit 4 processes at least one selected instruction, then the trace circuit 6 generates a trace data element including a traced condition value indicating at least the subset of condition flags 22 required to determine the outcome of the conditional instruction. A corresponding diagnostic apparatus 12 uses the traced condition value to determine a processing outcome of the at least one conditional instruction.
摘要翻译：处理电路4响应于至少一个条件指令，以根据至少一个条件标志22的子集的当前值执行条件操作。提供跟踪电路6，用于产生指示由处理电路4.当处理电路4处理至少一个所选择的指令时，跟踪电路6产生跟踪数据元素，跟踪数据元素包括至少指示条件标志22子集确定条件指令的结果的跟踪条件值。相应的诊断装置12使用跟踪条件值来确定至少一个条件指令的处理结果。

10. 发明授权

US08498373B2 Generating a regularly synchronised count value 有权
标题翻译：生成定期同步的计数值
公开(公告)号：US08498373B2
公开(公告)日：2013-07-30
申请号：US13348862
申请日：2012-01-12
申请人： John Michael Horley , Sheldon James Woodhouse , Michael John Williams , Sheshadri Kalkunte , Andrew Christopher Rose
发明人： John Michael Horley , Sheldon James Woodhouse , Michael John Williams , Sheshadri Kalkunte , Andrew Christopher Rose
IPC分类号： H03L7/00
CPC分类号： G04F10/04 , G06F1/14
摘要： A count value generator includes an input for receiving a synchronizing count value, a counter configured to increment at a local frequency, the local frequency being faster than the synchronizing frequency, and an interpolator for determining a frequency ratio between the local frequency and the synchronizing frequency and for determining an increment value for the counter dependent on a relative amount of a maximum value of the counter with respect to the frequency ratio is disclosed. The counter generates a count value including a predetermined number of bits representing integer values and output as the lower order bits of the output count value and additional lower order bits that represent fractional portions of the integer values. The counter includes output circuitry for outputting the synchronizing count value and the predetermined number of bits representing integer values generated by the counter as the lower order bits of the count value.
摘要翻译：计数值生成器包括用于接收同步计数值的输入，配置为以本地频率递增的计数器，本地频率比同步频率快;以及内插器，用于确定本地频率和同步频率之间的频率比并且用于根据相对于频率比的计数器的最大值的相对量来确定计数器的增量值。计数器产生包括表示整数值的预定位数的计数值，并输出为输出计数值的低位位和表示整数值的小数部分的附加低位位。计数器包括用于输出同步计数值的输出电路和表示由计数器产生的整数值的预定位数作为计数值的低位位。

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