Cache-memory control apparatus, cache-memory control method and computer product
    1.
    发明授权
    Cache-memory control apparatus, cache-memory control method and computer product 有权
    缓存存储器控制装置,缓存存储器控制方法和计算机产品

    公开(公告)号:US07743215B2

    公开(公告)日:2010-06-22

    申请号:US11980386

    申请日:2007-10-31

    IPC分类号: G06F12/00

    CPC分类号: G06F12/0897 G06F12/0811

    摘要: A cache-memory control apparatus controls a level-1 (L1) cache and a level-2 (L2) cache having a cache line divided into a plurality of sub-lines for storing data from the L1 cache. The cache-memory control apparatus includes a control-flag adding unit, an L1 cache control unit, and an L2 cache control unit. The control-flag adding unit provides an SP flag to each of the sub-lines. The L1-cache control unit acquires an access virtual address, and, when there is no data at the access virtual address, outputs an L2 cache-access address to the L2-cache control unit. The L2-cache control unit switches the SP flag based on a virtual page number in an L1 index and a physical page number in an L2 index. Based on the SP flag, corresponding one of the sub-lines is written back to the L1 cache.

    摘要翻译: 高速缓冲存储器控制装置控制一级(L1)高速缓存和二级(L2)高速缓存,该缓存具有被划分成用于存储来自L1高速缓存的数据的多条子行的高速缓存行。 高速缓冲存储器控制装置包括控制标志添加单元,L1高速缓存控制单元和L2高速缓存控制单元。 控制标志添加单元向每个子线提供SP标志。 L1高速缓存控制单元获取访问虚拟地址,并且当在访问虚拟地址处没有数据时,向L2高速缓存控制单元输出L2高速缓存访​​问地址。 L2缓存控制单元基于L1索引中的虚拟页号和L2索引中的物理页号来切换SP标志。 基于SP标志,相应的一条子行被写回到L1高速缓存。

    Cache-memory control apparatus, cache-memory control method and computer product
    2.
    发明申请
    Cache-memory control apparatus, cache-memory control method and computer product 有权
    缓存存储器控制装置,缓存存储器控制方法和计算机产品

    公开(公告)号:US20080162818A1

    公开(公告)日:2008-07-03

    申请号:US11980386

    申请日:2007-10-31

    IPC分类号: G06F12/08

    CPC分类号: G06F12/0897 G06F12/0811

    摘要: A cache-memory control apparatus controls a level-1 (L1) cache and a level-2 (L2) cache having a cache line divided into a plurality of sub-lines for storing data from the L1 cache. The cache-memory control apparatus includes a control-flag adding unit, an L1 cache control unit, and an L2 cache control unit. The control-flag adding unit provides an SP flag to each of the sub-lines. The L1-cache control unit acquires an access virtual address, and, when there is no data at the access virtual address, outputs an L2 cache-access address to the L2-cache control unit. The L2-cache control unit switches the SP flag based on a virtual page number in an L1 index and a physical page number in an L2 index. Based on the SP flag, corresponding one of the sub-lines is written back to the L1 cache.

    摘要翻译: 高速缓冲存储器控制装置控制一级(L1)高速缓存和二级(L2)高速缓存,该缓存具有被划分成用于存储来自L1高速缓存的数据的多条子行的高速缓存行。 高速缓冲存储器控制装置包括控制标志添加单元,L1高速缓存控制单元和L2高速缓存控制单元。 控制标志添加单元向每个子线提供SP标志。 L1高速缓存控制单元获取访问虚拟地址,并且当在访问虚拟地址处没有数据时,向L2高速缓存控制单元输出L2高速缓存访​​问地址。 L2缓存控制单元基于L1索引中的虚拟页号和L2索引中的物理页号来切换SP标志。 基于SP标志,相应的一条子行被写回到L1高速缓存。

    Coherency maintaining device and coherency maintaining method
    3.
    发明授权
    Coherency maintaining device and coherency maintaining method 有权
    一致性维护设备和一致性维护方法

    公开(公告)号:US07958318B2

    公开(公告)日:2011-06-07

    申请号:US12222726

    申请日:2008-08-14

    IPC分类号: G06F12/00

    摘要: A second-level cache device stores part of registration information of data for a first-level cache device in a second-level cache-tag unit in association with registration information in a second-level-cache data unit, and stores the registration information of data for the first-level cache device in a first-level cache-tag copying unit. A coherency maintaining processor maintains coherency between the first-level cache device and the second-level cache device based on the information stored in the second-level cache-tag unit and the first-level cache-tag copying unit.

    摘要翻译: 第二级高速缓存设备将第一级高速缓存设备的数据的注册信息的一部分与二级高速缓存数据单元中的注册信息相关联地存储在第二级高速缓存标签单元中,并且存储 一级缓存标签复制单元中的一级缓存设备的数据。 一致性维护处理器基于存储在第二级高速缓存标签单元和第一级高速缓存标签复制单元中的信息来维护第一级高速缓存设备和第二级高速缓存设备之间的一致性。

    Coherency maintaining device and coherency maintaining method
    4.
    发明申请
    Coherency maintaining device and coherency maintaining method 有权
    一致性维护设备和一致性维护方法

    公开(公告)号:US20080313405A1

    公开(公告)日:2008-12-18

    申请号:US12222726

    申请日:2008-08-14

    IPC分类号: G06F12/08

    摘要: A second-level cache device stores part of registration information of data for a first-level cache device in a second-level cache-tag unit in association with registration information in a second-level-cache data unit, and stores the registration information of data for the first-level cache device in a first-level cache-tag copying unit. A coherency maintaining processor maintains coherency between the first-level cache device and the second-level cache device based on the information stored in the second-level cache-tag unit and the first-level cache-tag copying unit.

    摘要翻译: 第二级高速缓存设备将第一级高速缓存设备的数据的注册信息的一部分与二级高速缓存数据单元中的注册信息相关联地存储在第二级高速缓存标签单元中,并且存储 一级缓存标签复制单元中的一级缓存设备的数据。 一致保持处理器基于存储在第二级高速缓存标签单元和第一级高速缓存标签复制单元中的信息来维护第一级高速缓存设备和第二级高速缓存设备之间的一致性。

    Cache control method and processor system
    5.
    发明授权
    Cache control method and processor system 有权
    缓存控制方法和处理器系统

    公开(公告)号:US07330961B2

    公开(公告)日:2008-02-12

    申请号:US11009466

    申请日:2004-12-13

    IPC分类号: G06F12/00 G06F12/08

    CPC分类号: G06F12/1054 G06F12/1063

    摘要: A cache control method controls data sharing conditions in a processor system having multi-level caches that are in an inclusion relationship. The cache control method indexes an upper level cache by a real address and indexes a lower level cache by a virtual address, and prevents a real address that is referred by a plurality of different virtual addresses from being registered a plurality of times within the same cache. A plurality of virtual addresses are registrable within the upper level cache, so as to relax the data sharing conditions.

    摘要翻译: 高速缓存控制方法控制具有包含关系的多级高速缓存的处理器系统中的数据共享条件。 高速缓存控制方法通过实际地址对上级高速缓存进行索引,并通过虚拟地址对较低级别的高速缓存进行索引,并且防止多个不同的虚拟地址引用的实际地址在同一高速缓存中多次登记 。 多个虚拟地址可注册在高级缓存内,以便放松数据共享条件。

    Cache control method and processor system
    7.
    发明申请
    Cache control method and processor system 有权
    缓存控制方法和处理器系统

    公开(公告)号:US20050102473A1

    公开(公告)日:2005-05-12

    申请号:US11009466

    申请日:2004-12-13

    IPC分类号: G06F12/00 G06F12/08 G06F12/10

    CPC分类号: G06F12/1054 G06F12/1063

    摘要: A cache control method controls data sharing conditions in a processor system having multi-level caches that are in an inclusion relationship. The cache control method indexes an upper level cache by a real address and indexes a lower level cache by a virtual address, and prevents a real address that is referred by a plurality of different virtual addresses from being registered a plurality of times within the same cache. A plurality of virtual addresses are registrable within the upper level cache, so as to relax the data sharing conditions.

    摘要翻译: 高速缓存控制方法控制具有包含关系的多级高速缓存的处理器系统中的数据共享条件。 高速缓存控制方法通过实际地址对上级高速缓存进行索引,并通过虚拟地址对较低级别的高速缓存进行索引,并且防止多个不同的虚拟地址引用的实际地址在同一高速缓存中多次登记 。 多个虚拟地址可注册在高级缓存内,以便放松数据共享条件。

    Cache control device and cache control method
    8.
    发明申请
    Cache control device and cache control method 审中-公开
    缓存控制器和缓存控制方式

    公开(公告)号:US20120047387A1

    公开(公告)日:2012-02-23

    申请号:US13373048

    申请日:2011-11-03

    申请人: Hideki Sakata

    发明人: Hideki Sakata

    IPC分类号: G06F11/30

    摘要: A cache control device includes, in a secondary cache data unit, a clean area that stores only information that is the same information as that stored in a main storage. Then, the cache control device monitors information on electrical power consumption of the cache control device, determines whether the information on the electrical power consumption is equal to or greater than a predetermined threshold, monitors an activity ratio of a cache memory, and determines whether the activity ratio is equal to or less than a predetermined threshold. Subsequently, if the cache control device determines that the information on the electrical power consumption is equal to or greater than the predetermined threshold or determines that the activity ratio of the secondary cache memory is equal to or less than the predetermined threshold, the cache control device performs control such that the clean area in the secondary cache data unit is degenerated.

    摘要翻译: 缓存控制装置在副缓存数据单元中包括仅存储与存储在主存储器中的信息相同的信息的清洁区域。 然后,高速缓存控制装置监视高速缓存控制装置的电力消耗信息,判断电力消耗的信息是否等于或大于预定阈值,监视高速缓存存储器的活动比, 活性比等于或小于预定阈值。 随后,如果高速缓存控制装置确定关于电力消耗的信息等于或大于预定阈值或者确定二级高速缓冲存储器的活动比等于或小于预定阈值,则高速缓存控制装置 执行控制,使得二次高速缓存数据单元中的清洁区域退化。

    Car power source apparatus
    9.
    发明授权
    Car power source apparatus 失效
    汽车电源设备

    公开(公告)号:US08063506B2

    公开(公告)日:2011-11-22

    申请号:US12372944

    申请日:2009-02-18

    IPC分类号: H02H7/18

    摘要: A power source apparatus of a car is provided with contactors (2) connected to an output-side of a battery (1); a pre-charge circuit (3) made up of a series connected pre-charge resistor (6) and a pre-charge relay (7), which is connected with a contactor (2) to supply auxiliary charge to a capacitor (21) connected to a car-side of the battery (1); and a control circuit (4) to control the contactors (2) and the pre-charge relay (7). The pre-charge resistor (6) is connected in parallel with a contactor (2), and the pre-charge relay (7) is connected in series with that contactor (2). The control circuit (4) switches the pre-charge relay (7) ON to pre-charge the car-side capacitor (21), and then switches the contactor (2) ON to connect the battery (1) to the car-side.

    摘要翻译: 汽车的动力源装置设置有与电池(1)的输出侧连接的接触器(2)。 由串联连接的预充电电阻(6)和预充电继电器(7)构成的预充电电路(3),其与接触器(2)连接以向电容器(21)提供辅助电荷, 连接到电池(1)的车侧; 以及用于控制接触器(2)和预充电继电器(7)的控制电路(4)。 预充电电阻(6)与接触器(2)并联连接,并且预充电继电器(7)与该接触器(2)串联连接。 控制电路(4)将预充电继电器(7)接通,对车侧电容器(21)进行预充电,然后将接触器(2)接通,将电池(1)连接到车侧 。

    Data buffer device, cache device, and data buffer control method
    10.
    发明申请
    Data buffer device, cache device, and data buffer control method 审中-公开
    数据缓冲设备,缓存设备和数据缓冲区控制方法

    公开(公告)号:US20070245087A1

    公开(公告)日:2007-10-18

    申请号:US11802069

    申请日:2007-05-18

    申请人: Hideki Sakata

    发明人: Hideki Sakata

    IPC分类号: G06F12/00

    CPC分类号: G06F15/8084

    摘要: There is disclosed a data buffer device that selects and uses buffers to improve persistence of data and uniformity in use frequency of the buffers. The data buffer device includes: a REQ_QUEUE 11 constituted by plural buffers that store data and are given numbers; a mask bit vector 12 that has mask bit patterns to mask the plural buffers, respectively, and sets corresponding one of the mask bit patterns for a released buffer among the plural buffers; a first priority select section 13 that selects a buffer given the smallest number from buffers that are neither masked by the mask bit vector nor used among the plural buffers; a second priority select section 14 that selects a buffer given the smallest number from unused buffers among the plural buffers; and a selector 15 that selects one of the buffer selected by the first priority select section 13 and the buffer selected by the second priority select section 14.

    摘要翻译: 公开了一种数据缓冲器件,其选择并使用缓冲器来改善数据的持久性和缓冲器的使用频率的均匀性。 数据缓冲装置包括:由多个缓冲器构成的REQ_QUEUE11,其存储数据并给出数字; 分别具有掩蔽多个缓冲器的掩码位模式的掩码位向量12,并且在多个缓冲器之间设置用于释放缓冲器的掩码位模式的对应一个; 优先选择部分13,其从不被掩码位向量屏蔽的缓冲器中选择最小数目的缓冲器,也不在多个缓冲器中使用; 第二优先级选择部分14,其从多个缓冲器中的未使用的缓冲器中选择给定最小数量的缓冲器; 以及选择器15,其选择由第一优先选择部分13选择的缓冲器和由第二优先级选择部分14选择的缓冲器之一。