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    Using predictions for store-to-load forwarding
    15.
    发明授权
    Using predictions for store-to-load forwarding 有权
    使用商店到装载转发的预测

    公开(公告)号：US09367455B2

    公开(公告)日：2016-06-14

    申请号：US14018562

    申请日：2013-09-05

    Applicant: Advanced Micro Devices, Inc.

    Inventor： Yasuko Eckert ,  Lena E. Olson ,  Srilatha Manne ,  James M. O'Connor

    IPC: G06F9/30 ,  G06F12/08 ,  G06F12/12

    CPC classification number: G06F12/0802 ,  G06F9/3834 ,  G06F9/3838 ,  G06F12/0848 ,  G06F12/0862 ,  G06F12/0864 ,  G06F12/0875 ,  G06F12/123 ,  G06F2212/1016 ,  G06F2212/451 ,  G06F2212/502 ,  G06F2212/6022 ,  G06F2212/6032 ,  Y02D10/13

    Abstract: The described embodiments include a core that uses predictions for store-to-load forwarding. In the described embodiments, the core comprises a load-store unit, a store buffer, and a prediction mechanism. During operation, the prediction mechanism generates a prediction that a load will be satisfied using data forwarded from the store buffer because the load loads data from a memory location in a stack. Based on the prediction, the load-store unit first sends a request for the data to the store buffer in an attempt to satisfy the load using data forwarded from the store buffer. If data is returned from the store buffer, the load is satisfied using the data. However, if the attempt to satisfy the load using data forwarded from the store buffer is unsuccessful, the load-store unit then separately sends a request for the data to a cache to satisfy the load.

    Abstract translation: 所描述的实施例包括使用对存储到负载转发的预测的核心。 在所描述的实施例中，核心包括加载存储单元，存储缓冲器和预测机制。 在运行期间，预测机制产生一个预测，即使用从存储缓冲器转发的数据来满足负载，因为负载从栈中的存储器位置加载数据。 基于该预测，加载存储单元首先向存储缓冲器发送对数据的请求，以尝试使用从存储缓冲器转发的数据来满足负载。 如果从存储缓冲区返回数据，则使用该数据来满足负载。 然而，如果使用从存储缓冲器转发的数据来满足负载的尝试不成功，则加载存储单元然后分别向缓存发送用于满足负载的数据请求。

    Mechanisms to bound the presence of cache blocks with specific properties in caches
    16.
    发明授权
    Mechanisms to bound the presence of cache blocks with specific properties in caches 有权
    限制缓存中具有特定属性的高速缓存块的存在的机制

    公开(公告)号：US09251069B2

    公开(公告)日：2016-02-02

    申请号：US14055869

    申请日：2013-10-16

    Applicant: Advanced Micro Devices, Inc.

    Inventor： Yasuko Eckert ,  Gabriel H. Loh ,  Mauricio Breternitz ,  James M. O'Connor ,  Srilatha Manne ,  Nuwan S. Jayasena ,  Mithuna S. Thottethodi

    IPC: G06F12/08

    CPC classification number: G06F12/0808 ,  G06F1/3225 ,  G06F1/3275 ,  G06F12/0848 ,  G06F12/0888 ,  G06F12/0897 ,  Y02D10/13 ,  Y02D10/14

    Abstract: A system and method for efficiently limiting storage space for data with particular properties in a cache memory. A computing system includes a cache array and a corresponding cache controller. The cache array includes multiple banks, wherein a first bank is powered down. In response a write request to a second bank for data indicated to be stored in the powered down first bank, the cache controller determines a respective bypass condition for the data. If the bypass condition exceeds a threshold, then the cache controller invalidates any copy of the data stored in the second bank. If the bypass condition does not exceed the threshold, then the cache controller stores the data with a clean state in the second bank. The cache controller writes the data in a lower-level memory for both cases.

    Abstract translation: 一种用于有效地限制高速缓冲存储器中具有特定属性的数据的存储空间的系统和方法。 计算系统包括高速缓存阵列和对应的高速缓存控制器。 高速缓存阵列包括多个存储体，其中第一存储体断电。 作为响应，向第二存储体写入请求以指示存储在掉电第一存储体中的数据，高速缓存控制器确定数据的相应旁路条件。 如果旁路条件超过阈值，则高速缓存控制器使存储在第二组中的数据的任何副本无效。 如果旁路条件不超过阈值，则高速缓存控制器将具有干净状态的数据存储在第二存储体中。 高速缓存控制器将这些数据写入较低级别的内存。

    SPARE MEMORY EXTERNAL TO PROTECTED MEMORY
    17.
    发明申请
    SPARE MEMORY EXTERNAL TO PROTECTED MEMORY 有权
    备用存储器外部保护存储器

    公开(公告)号：US20140376320A1

    公开(公告)日：2014-12-25

    申请号：US13926155

    申请日：2013-06-25

    Applicant: Advanced Micro Devices, Inc.

    Inventor： Gabriel H. Loh ,  Vilas Sridharan ,  James M. O'Connor

    IPC: G11C29/04

    CPC classification number: G11C29/76 ,  G11C11/401

    Abstract: A memory subsystem employs spare memory cells external to one or more memory devices. In some embodiments, a processing system uses the spare memory cells to replace individual selected cells at the protected memory, whereby the selected cells are replaced on a cell-by-cell basis, rather than exclusively on a row-by-row, column-by-column, or block-by-block basis. This allows faulty memory cells to be replaced efficiently, thereby improving memory reliability and manufacturing yields, without requiring large blocks of spare memory cells.

    Abstract translation: 存储器子系统在一个或多个存储器件外部使用备用存储器单元。 在一些实施例中，处理系统使用备用存储器单元来替换受保护存储器处的各个所选择的单元，由此所选择的单元在逐个单元的基础上被替代，而不是仅排列在逐列的列上， 逐列或逐块的基础。 这样可以有效地更换故障存储单元，从而提高存储器的可靠性和制造成本，而不需要大量的备用存储单元。

    Selecting a Resource from a Set of Resources for Performing an Operation
    18.
    发明申请
    Selecting a Resource from a Set of Resources for Performing an Operation 有权
    从一组用于执行操作的资源中选择资源

    公开(公告)号：US20140223445A1

    公开(公告)日：2014-08-07

    申请号：US13761985

    申请日：2013-02-07

    Applicant: ADVANCED MICRO DEVICES, INC.

    Inventor： Bradford M. Beckmann ,  Mithuna S. Thottethodi ,  James M. O'Connor ,  Mauricio Breternitz ,  Lisa R. Hsu ,  Gabriel H. Loh ,  Yasuko Eckert

    IPC: G06F9/50

    CPC classification number: G06F9/5016 ,  G06F9/5011 ,  G06F12/0875 ,  G06F2212/45

    Abstract: The described embodiments comprise a selection mechanism that selects a resource from a set of resources in a computing device for performing an operation. In some embodiments, the selection mechanism is configured to perform a lookup in a table selected from a set of tables to identify a resource from the set of resources. When the identified resource is not available for performing the operation and until a resource is selected for performing the operation, the selection mechanism is configured to identify a next resource in the table and select the next resource for performing the operation when the next resource is available for performing the operation.

    Abstract translation: 所描述的实施例包括从用于执行操作的计算设备中的一组资源中选择资源的选择机制。 在一些实施例中，选择机制被配置为在从一组表中选择的表中执行查找，以从资源集合中识别资源。 当所识别的资源不可用于执行操作并且直到选择资源来执行操作时，选择机制被配置为识别表中的下一个资源，并且当下一个资源可用时选择用于执行操作的下一个资源 用于执行操作。

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