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1. 发明申请

US20130166952A1 DATA PROCESSING APPARATUS WITH AN EXECUTION PIPELINE AND ERROR RECOVERY UNIT AND METHOD OF OPERATING THE DATA PROCESSING APPARATUS 有权
标题翻译：具有执行管线和错误恢复单元的数据处理装置及操作数据处理装置的方法
公开(公告)号：US20130166952A1
公开(公告)日：2013-06-27
申请号：US13336432
申请日：2011-12-23
申请人： Guillaume Schon , Mélanie Emanuelle Lucie Teyssier , Frederic Claude Marie Piry , Luca Scalabrino , David Michael Bull
发明人： Guillaume Schon , Mélanie Emanuelle Lucie Teyssier , Frederic Claude Marie Piry , Luca Scalabrino , David Michael Bull
IPC分类号： G06F11/14
CPC分类号： G06F9/3865 , G06F9/3855 , G06F9/3861 , G06F11/0736 , G06F11/0757 , G06F11/1405 , G06F11/1497
摘要： A data processing apparatus executes instructions in a sequence of pipelined execution stages. An error detection unit twice samples a signal associated with execution of an instruction and generates an error signal if the samples differ. An exception storage unit maintains an age-ordered list of entries corresponding to instructions issued to the execution pipeline and can mark an entry to show if the error signal has been generated in association with that instruction. A timer unit is responsive to generation of the error signal to initiate timing of a predetermined time period. An error recovery unit initiates a soft pipeline flush procedure if an oldest pending entry in the list has said error marker stored in association therewith and initiates a hard pipeline flush procedure if said predetermined time period elapses, said hard flush procedure comprising resetting said pipeline to a predetermined state.
摘要翻译：数据处理装置以流水线执行阶段的顺序执行指令。错误检测单元对与执行指令相关联的信号进行两次采样，并且如果样本不同则产生误差信号。异常存储单元维护与发出到执行流水线的指令相对应的条目的年龄排序列表，并且可以标记条目以显示是否已经与该指令相关联地生成了错误信号。定时器单元响应于产生误差信号以启动预定时间段的定时。如果列表中的最旧的等待条目具有与其相关联地存储的所述错误标记，则错误恢复单元启动软管道冲洗过程，并且如果所述预定时间段过去则启动硬管道冲洗过程，所述硬冲洗程序包括将所述流水线重置为预定状态。

2. 发明授权

US08640008B2 Error recovery in a data processing apparatus 有权
标题翻译：数据处理设备中的错误恢复
公开(公告)号：US08640008B2
公开(公告)日：2014-01-28
申请号：US13336428
申请日：2011-12-23
申请人： Guillaume Schon , Luca Scalabrino , Frederic Claude Marie Piry , David Michael Bull
发明人： Guillaume Schon , Luca Scalabrino , Frederic Claude Marie Piry , David Michael Bull
IPC分类号： H03M13/00
CPC分类号： G06F11/1407 , G06F11/1497
摘要： A data processing apparatus has error detection units each configured to generate an error signal if a first and second sample of a signal associated with execution of an instruction differ. Error value generation circuitry generates an error value showing if any of the error detection units have generated the error signal. Error value stabilisation circuitry performs a stabilisation procedure comprising re-sampling the error value to remove metastability. Error recovery circuitry initiates re-execution of the instruction if the error value is asserted. Count circuitry holds a counter value in association with the error value, the counter value set to a predetermined value when the error value is generated and decremented each time the error value is re-sampled prior to reaching the error value stabilisation circuitry. The error value bypasses the stabilisation procedure if the counter value is zero before the error value reaches the error value stabilisation circuitry.
摘要翻译：数据处理装置具有错误检测单元，每个错误检测单元被配置为如果与指令的执行相关联的信号的第一和第二采样不同，则生成错误信号。错误值产生电路产生一个错误值，显示任何错误检测单元是否产生了错误信号。误差值稳定电路执行稳定程序，包括重新采样误差值以消除亚稳态。错误恢复电路如果错误值被确认则启动指令的重新执行。计数电路与错误值相关联地保持计数器值，当误差值被产生并且每当在到达误差值稳定电路之前重新采样误差值时递减，计数器值被设置为预定值。如果在错误值到达故障值稳定电路之前计数器值为零，则误差值会绕过稳定程序。

3. 发明授权

US09075621B2 Error recovery upon reaching oldest instruction marked with error or upon timed expiration by flushing instructions in pipeline pending queue and restarting execution 有权
标题翻译：遇到错误时，或通过在流水线等待队列中重新启动执行时刷新指令，可能会导致错误恢复
公开(公告)号：US09075621B2
公开(公告)日：2015-07-07
申请号：US13336432
申请日：2011-12-23
申请人： Guillaume Schon , Mélanie Emanuelle Lucie Teyssier , Frederic Claude Marie Piry , Luca Scalabrino , David Michael Bull
发明人： Guillaume Schon , Mélanie Emanuelle Lucie Teyssier , Frederic Claude Marie Piry , Luca Scalabrino , David Michael Bull
IPC分类号： G06F9/38 , G06F11/07 , G06F11/14
CPC分类号： G06F9/3865 , G06F9/3855 , G06F9/3861 , G06F11/0736 , G06F11/0757 , G06F11/1405 , G06F11/1497
摘要： A data processing apparatus executes instructions in a sequence of pipelined execution stages. An error detection unit twice samples a signal associated with execution of an instruction and generates an error signal if the samples differ. An exception storage unit maintains an age-ordered list of entries corresponding to instructions issued to the execution pipeline and can mark an entry to show if the error signal has been generated in association with that instruction. A timer unit is responsive to generation of the error signal to initiate timing of a predetermined time period. An error recovery unit initiates a soft pipeline flush procedure if an oldest pending entry in the list has said error marker stored in association therewith and initiates a hard pipeline flush procedure if said predetermined time period elapses, said hard flush procedure comprising resetting said pipeline to a predetermined state.
摘要翻译：数据处理装置以流水线执行阶段的顺序执行指令。错误检测单元对与执行指令相关联的信号进行两次采样，并且如果样本不同则产生误差信号。异常存储单元维护与发出到执行流水线的指令相对应的条目的年龄排序列表，并且可以标记条目以显示是否已经与该指令相关联地生成了错误信号。定时器单元响应于产生误差信号以启动预定时间段的定时。如果列表中的最旧的等待条目具有与其相关联地存储的所述错误标记，则错误恢复单元启动软管道冲洗过程，并且如果所述预定时间段过去则启动硬管道冲洗过程，所述硬冲洗程序包括将所述流水线重置为预定状态。

4. 发明授权

US09052909B2 Recovering from exceptions and timing errors 有权
标题翻译：从异常和定时错误中恢复
公开(公告)号：US09052909B2
公开(公告)日：2015-06-09
申请号：US13313053
申请日：2011-12-07
申请人： Frederic Claude Marie Piry , Luca Scalabrino , Guillaume Schon , Melanie Emanuelle Lucie Teyssier
发明人： Frederic Claude Marie Piry , Luca Scalabrino , Guillaume Schon , Melanie Emanuelle Lucie Teyssier
IPC分类号： G06F9/00 , G06F15/00 , G06F9/44 , G06F9/38
CPC分类号： G06F9/38 , G06F9/384 , G06F9/3859 , G06F9/3863 , G06F9/3865 , G06F11/0721 , G06F11/0772 , G06F11/0793 , G06F11/1407
摘要： A data processing apparatus with a processing pipeline, the pipeline including exception control circuitry and error detection circuitry. An exception storage unit is configured to maintain an age-ordered list of entries corresponding to instructions issued to the processing pipeline for execution. The unit is configured to store, in association with each entry, an exception indicator indicating whether the instruction is an exception instruction and whether it has generated an exception and an error indicator indicating whether the instruction has generated an error. The apparatus is configured to indicate to the exception storage unit that an instruction is resolved when processing of the instruction has reached a stage such that it is known whether the instruction will generate an error and whether the instruction will generate an exception; and the exception control circuitry is configured to sequentially retire oldest resolved entries from the list in the exception storage unit.
摘要翻译：具有处理流水线的数据处理装置，流水线包括异常控制电路和错误检测电路。异常存储单元被配置为维护与发出到处理流水线的指令相对应的条目的年龄排序列表以供执行。该单元被配置为与每个条目相关联地存储指示指令是异常指令的异常指示以及它是否已经产生异常以及指示指令是否已经产生错误的错误指示符。所述装置被配置为在所述指令的处理已经到达已知所述指令是否将产生错误以及所述指令是否将产生异常的阶段时向所述异常存储单元指示指令被解析; 并且异常控制电路被配置为从异常存储单元中的列表中顺序地退出最旧的解析条目。

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