Flag management in processors enabled for speculative execution of micro-operation traces
    1.
    发明授权
    Flag management in processors enabled for speculative execution of micro-operation traces 有权
    处理器中的标志管理能够推测微操作轨迹的执行

    公开(公告)号:US07568089B1

    公开(公告)日:2009-07-28

    申请号:US11553458

    申请日:2006-10-26

    IPC分类号: G06F9/30

    摘要: Managing speculative execution via groups of actions corresponding to atomic traces enables efficient processing of flag-related actions, as atomic traces advantageously enable single checkpoints of flags at trace boundaries. Flag restoration from checkpoints for trace aborts uses a flag checkpoint table to store flag checkpoints, each corresponding to an atomic trace. The table is accessed for flag restoration in response to a trace abort. In a first technique, a corresponding flag checkpoint is stored in response to trace renaming, and the flag checkpoints are updated as flags are modified. Flags are restored from the flag checkpoint corresponding to an aborted atomic trace. In a second technique, a corresponding flag checkpoint is allocated to an invalid state in response to trace renaming, and initialized on-demand when flags are first modified in accordance with the atomic trace. Flags are restored from the oldest flag checkpoint starting from an aborted atomic trace.

    摘要翻译: 通过与原子轨迹对应的动作组来管理推测性执行,可以有效地处理与标志相关的动作,因为原子轨迹有利地使踪迹边界上的标志的单个检查点。 用于跟踪中止的检查点的标志恢复使用标志检查点表来存储标志检查点,每个对应于原子轨迹。 该表被访问用于响应于跟踪中止的标志恢复。 在第一种技术中,响应于跟踪重命名而存储对应的标志检查点,并且随着标志被修改,标志检查点被更新。 从对应于中止的原子轨迹的标志检查点恢复标志。 在第二种技术中,响应于跟踪重命名,对应的标志检查点被分配到无效状态,并且当根据原子轨迹首先修改标志时按需初始化。 从废弃的原子轨迹开始,从最旧的标志检查点恢复标志。

    Flag management in processors enabled for speculative execution of micro-operation traces
    2.
    发明授权
    Flag management in processors enabled for speculative execution of micro-operation traces 有权
    处理器中的标志管理能够推测微操作轨迹的执行

    公开(公告)号:US07587585B1

    公开(公告)日:2009-09-08

    申请号:US11553453

    申请日:2006-10-26

    IPC分类号: G06F9/30

    摘要: Managing speculative execution via groups of one or more actions corresponding to atomic traces enables efficient processing of flag-related actions, as atomic traces advantageously enable single checkpoints of flag values at atomic trace boundaries. Checkpointing flags during atomic trace renaming in a processor system uses a flag checkpoint table to store a plurality of flag checkpoints, each corresponding to an atomic trace. The table is selectively accessed to provide flag information to restore speculative flags when an atomic trace is aborted. A corresponding flag checkpoint is stored when an atomic trace is renamed. An action that updates flags updates all entries in the table corresponding to younger atomic traces. If the atomic trace is aborted, then the corresponding flag checkpoint is used for restoration of flag state.

    摘要翻译: 通过与原子轨迹对应的一个或多个动作的组来管理推测性执行,可以有效地处理与标志相关的动作,因为原子轨迹有利地使原子轨迹边界上的标志值的检查点成为可能。 在处理器系统中的原子轨迹重命名期间的检查点标志使用标志检查点表来存储多个标志检查点,每个对应于原子轨迹。 当原子轨迹中止时,有选择地访问该表以提供标志信息来恢复推测标志。 当重新命名原子轨迹时,存储对应的标志检查点。 更新标志的操作会更新表中对应于较年轻原子轨迹的所有条目。 如果原子轨迹中止,则对应的标志检查点用于恢复标志状态。

    Flag management in processors enabled for speculative execution of micro-operation traces
    3.
    发明授权
    Flag management in processors enabled for speculative execution of micro-operation traces 有权
    处理器中的标志管理能够推测微操作轨迹的执行

    公开(公告)号:US07568088B1

    公开(公告)日:2009-07-28

    申请号:US11553455

    申请日:2006-10-26

    IPC分类号: G06F9/30

    摘要: Managing speculative execution via groups of one or more actions corresponding to atomic traces enables efficient processing of flag-related actions, as atomic traces advantageously enable single checkpoints of flag values at atomic trace boundaries. Checkpointing flags on-demand for atomic traces in a processor system uses a flag checkpoint table to store a plurality of flag checkpoints, each corresponding to an atomic trace. The table is selectively accessed to provide flag information to restore speculative flags when an atomic trace is aborted. A corresponding flag checkpoint is allocated to an invalid state when an atomic trace is renamed. An action that updates flags initializes the corresponding flag checkpoint (if invalid). If the atomic trace is aborted, then the table is searched according to program order starting with the entry corresponding to the aborted atomic trace. The first (if any) valid checkpoint found is used for flag restoration.

    摘要翻译: 通过与原子轨迹对应的一个或多个动作的组来管理推测性执行,可以有效地处理与标志相关的动作,因为原子轨迹有利地使原子轨迹边界上的标志值的检查点成为可能。 处理器系统中原子轨迹的点对点标志使用标志检查点表来存储多个对应于原子轨迹的标志检查点。 当原子轨迹中止时,有选择地访问该表以提供标志信息来恢复推测标志。 当重命名原子轨迹时,相应的标志检查点被分配到无效状态。 更新标志的动作初始化相应的标志检查点(如果无效)。 如果原子轨迹被中止,那么根据程序顺序搜索表格,从与中止的原子轨迹对应的条目开始。 找到的第一个(如果有的话)有效检查点用于标志恢复。

    Virtual core remapping based on temperature
    5.
    发明授权
    Virtual core remapping based on temperature 有权
    基于温度的虚拟核心重映射

    公开(公告)号:US08281308B1

    公开(公告)日:2012-10-02

    申请号:US11933199

    申请日:2007-10-31

    IPC分类号: G06F9/455

    摘要: A virtual core management system including a first physical core and a second physical core, and a virtual core including a collection of logical states associated with execution of a program. The virtual core management system further includes a first temperature sensor configured to sense a temperature of the first physical core and a second temperature sensor configured to sense a temperature of the second physical core, and a virtual core management component configured to map the virtual core to one of the first physical core and the second physical core based on at least one of the temperature of the first physical core and the temperature of the second physical core.

    摘要翻译: 包括第一物理核心和第二物理核心的虚拟核心管理系统以及包括与执行程序相关联的逻辑状态的集合的虚拟核心。 虚拟核心管理系统还包括配置成感测第一物理核心的温度的第一温度传感器和被配置为感测第二物理核心的温度的第二温度传感器,以及配置成将虚拟核心映射到 基于第一物理核心的温度和第二物理核心的温度中的至少一个的第一物理核心和第二物理核心之一。

    Prediction of data values read from memory by a microprocessor using the storage destination of a load operation
    6.
    发明授权
    Prediction of data values read from memory by a microprocessor using the storage destination of a load operation 有权
    使用加载操作的存储目的地的微处理器从存储器读取的数据值的预测

    公开(公告)号:US07788473B1

    公开(公告)日:2010-08-31

    申请号:US11646008

    申请日:2006-12-26

    IPC分类号: G06F9/30

    摘要: Prediction of data values to be read from memory by a microprocessor for load operations. In one aspect, a method for predicting a data value that will result from a load operation to be executed by the microprocessor includes accessing an entry in a load value prediction table that stores a predicted data value corresponding to the load operation. The predicted data value is stored in a physical storage destination of the microprocessor to be available as a result of the load operation without waiting for execution of the load operation to complete. The storage destination is the destination for a loaded data value resulting from executing the load operation.

    摘要翻译: 预测由微处理器从存储器读取的数据值以进行加载操作。 一方面,用于预测由微处理器执行的加载操作产生的数据值的方法包括访问存储与加载操作对应的预测数据值的载入值预测表中的条目。 预测数据值被存储在微处理器的物理存储目的地中,作为加载操作的结果可用,而不等待执行加载操作完成。 存储目的地是由执行加载操作产生的加载数据值的目的地。

    Virtual core management
    7.
    发明授权
    Virtual core management 有权
    虚拟核心管理

    公开(公告)号:US08225315B1

    公开(公告)日:2012-07-17

    申请号:US11933319

    申请日:2007-10-31

    IPC分类号: G06F9/455 G06F15/76

    摘要: A virtual core management system including a physical core and a first virtual core including a collection of logical states associated with execution of a first program. The first virtual core is mapped to the physical core. The virtual core management system further includes a second virtual core including a collection of logical states associated with execution of a second program, and a virtual core management component configured to unmap the first virtual core from the physical core and map the second virtual core to the physical core in response to the virtual core management component detecting that the physical core is idle.

    摘要翻译: 一种包括物理核心和第一虚拟核心的虚拟核心管理系统,包括与执行第一程序相关联的逻辑状态的集合。 第一个虚拟内核映射到物理内核。 虚拟核心管理系统还包括第二虚拟核心,其包括与执行第二程序相关联的逻辑状态的集合,虚拟核心管理组件被配置为从物理核心取消映射第一虚拟核心并将第二虚拟核心映射到 响应虚拟核心管理组件检测物理内核空闲的物理核心。

    Virtual core management
    8.
    发明授权
    Virtual core management 有权
    虚拟核心管理

    公开(公告)号:US07802073B1

    公开(公告)日:2010-09-21

    申请号:US11781726

    申请日:2007-07-23

    IPC分类号: G06F9/50

    CPC分类号: G06F9/3851

    摘要: The present disclosure provides methods and systems adapted for use with a processor having one or more physical cores. The methods and systems include a virtual core management component adapted to map one or more virtual cores to at least one of the physical cores to enable execution of one or more programs by the at least one physical core. The one or more virtual cores include one or more logical states associated with the execution of the one or more programs. The methods and systems may include a memory component adapted to store the one or more virtual cores. The virtual core management component may be adapted to transfer the one or more virtual cores from the memory component to the at least one physical core.

    摘要翻译: 本公开提供适于与具有一个或多个物理核心的处理器一起使用的方法和系统。 所述方法和系统包括适于将一个或多个虚拟核心映射到所述物理核心中的至少一个的虚拟核心管理组件,以使所述至少一个物理核心能够执行一个或多个程序。 一个或多个虚拟核心包括与一个或多个程序的执行相关联的一个或多个逻辑状态。 方法和系统可以包括适于存储一个或多个虚拟核的存储器组件。 虚拟核心管理组件可以适于将一个或多个虚拟核心从存储器组件传送到至少一个物理核心。

    Virtual core management
    9.
    发明授权
    Virtual core management 有权
    虚拟核心管理

    公开(公告)号:US07797512B1

    公开(公告)日:2010-09-14

    申请号:US11933297

    申请日:2007-10-31

    IPC分类号: G06F9/46

    摘要: A virtual core management system including one or more physical cores and one or more virtual cores. Each virtual core respectively includes a collection of logical states associated with execution of a corresponding program. The virtual core management system further includes one or more interrupt controllers configured to send one or more interrupt signals to interrupt execution of a corresponding program associated with at least one of the one or more virtual cores, and a virtual core management component configured to map the at least one virtual core to one of the one or more physical cores and route the one or more interrupt signals to the corresponding physical core.

    摘要翻译: 包括一个或多个物理核心和一个或多个虚拟核心的虚拟核心管理系统。 每个虚拟核心分别包括与相应程序的执行相关联的逻辑状态的集合。 虚拟核心管理系统还包括一个或多个中断控制器,其被配置为发送一个或多个中断信号以中断与一个或多个虚拟核心中的至少一个虚拟核心相关联的对应程序的执行;以及虚拟核心管理组件, 至少一个虚拟内核到一个或多个物理核心中的一个,并将一个或多个中断信号路由到相应的物理核心。

    Software hint to specify the preferred branch prediction to use for a branch instruction
    10.
    发明授权
    Software hint to specify the preferred branch prediction to use for a branch instruction 有权
    软件提示指定用于分支指令的首选分支预测

    公开(公告)号:US07673122B1

    公开(公告)日:2010-03-02

    申请号:US11306000

    申请日:2005-12-16

    IPC分类号: G06F9/00

    CPC分类号: G06F9/3846 G06F9/3848

    摘要: Software hints embedded in branch instructions direct selection of one of a plurality of branch predictors to use when processing the branch instructions, leading to improved branch prediction (i.e. fewer mis-predictions) over conventional schemes. A software agent assembles branch instructions having associated respective branch predictor control fields compatible with a branch predictor selector and a plurality of branch predictors. Each branch predictor control field is used to perform branch predictor selection, branch predictor control, or both. Branch predictor selection enables selective branch prediction according to an appropriate one of the branch predictors as determined by the software agent by examining context surrounding the branch instruction. Branch predictor control enables control of operation of one or more of the branch predictors. For example, a history-based branch predictor may be instructed to provide branch prediction according to a history-depth specified by the branch predictor control.

    摘要翻译: 嵌入分支指令中的软件提示直接选择在处理分支指令时使用的多个分支预测器中的一个,导致与常规方案相比改进的分支预测(即较少的误预测)。 软件代理装配具有与分支预测器选择器和多个分支预测器兼容的相关联的相应分支预测器控制字段的分支指令。 每个分支预测器控制字段用于执行分支预测器选择,分支预测器控制或两者。 分支预测器选择通过检查分支指令周围的上下文,根据由软件代理确定的适当的一个分支预测器启用选择性分支预测。 分支预测器控制使得能够控制一个或多个分支预测器的操作。 例如,可以指示基于历史的分支预测器,以根据由分支预测器控制指定的历史深度来提供分支预测。