公开(公告)号：US20050021944A1

公开(公告)日：2005-01-27

申请号：US10601374

申请日：2003-06-23

申请人： David Craft ,  Michael Day ,  Harm Hofstee ,  Charles Johns ,  John Liberty

发明人： David Craft ,  Michael Day ,  Harm Hofstee ,  Charles Johns ,  John Liberty

IPC分类号： G06F12/14 ,  G06F21/22 ,  G06F21/24 ,  G09C1/00 ,  H04L9/08 ,  H04L9/00

CPC分类号： G06F21/53 ,  H04L9/3226 ,  H04L2209/56

摘要： The present invention provides for authenticating code and/or data and providing a protected environment for execution. The present invention provides for dynamically partitioning and un-partitioning a local store for the authentication of code or data. The local store is partitioned into an isolated and non-isolated section. Code or data is loaded into the isolated section. The code or data is authenticated in the isolated section of the local store. After authentication, the code is executed. After execution, the memory within the isolated region of the attached processor unit is erased, and the attached processor unit de-partitions the isolated section within the local store.

摘要翻译： 本发明提供了验证代码和/或数据并提供受保护的环境以供执行。 本发明提供了用于对代码或数据的认证的动态分区和分区本地存储。 本地商店被划分成一个隔离和非隔离的部分。 代码或数据被加载到隔离的部分。 代码或数据在本地存储的隔离部分进行身份验证。 认证后，执行代码。 在执行之后，附着的处理器单元的隔离区域内的存储器被擦除，并且附加的处理器单元对本地存储器内的隔离部分进行分区。

公开(公告)号：US20060031836A1

公开(公告)日：2006-02-09

申请号：US10912481

申请日：2004-08-05

申请人： Jeffrey Brown ,  Michael Day ,  Harm Hofstee ,  Charles Johns ,  James Kahle ,  Michael Wang

发明人： Jeffrey Brown ,  Michael Day ,  Harm Hofstee ,  Charles Johns ,  James Kahle ,  Michael Wang

IPC分类号： G06F9/46

CPC分类号： G06F1/3203

摘要： The present invention provides for controlling the power consumption of an element. A first power control command is issued by software for the element. It is determined if the power control command corresponds to an allowable power control state for that element as defined by the hardware. If the power control command is not an allowable power control state for that element, the hardware sets the power control at a higher level than the power control state issued by the software. The software is real time software, and the software also sets minimally acceptable activity control states. A hierarchy of power consumption is defined for different elements of a chip by software, which provides the minimum level of power consumption by any element or sub-element on a chip.

摘要翻译： 本发明提供用于控制元件的功耗。 第一个功率控制命令由该元件的软件发出。 确定功率控制命令是否对应于由硬件定义的该元件的容许功率控制状态。 如果功率控制命令不是该元件的允许功率控制状态，则硬件将功率控制设置在比由软件发出的功率控制状态更高的水平。 该软件是实时软件，软件还设置了最低限度可接受的活动控制状态。 通过软件为芯片的不同元件定义功耗层级，其通过芯片上的任何元件或子元件提供最低功耗水平。

公开(公告)号：US20050080998A1

公开(公告)日：2005-04-14

申请号：US10682386

申请日：2003-10-09

申请人： Michael Day ,  Harm Hofstee ,  Charles Johns ,  James Kahle ,  David Shippy ,  Thuong Truong

发明人： Michael Day ,  Harm Hofstee ,  Charles Johns ,  James Kahle ,  David Shippy ,  Thuong Truong

IPC分类号： G06F12/08

CPC分类号： G06F12/0835

摘要： Disclosed is a coherent cache system that operates in conjunction with non-homogeneous processing units. A set of processing units of a first configuration has conventional cache and directly accesses common or shared system physical and virtual address memory through the use of a conventional MMU (Memory Management Unit). Additional processors of a different configuration and/or other devices that need to access system memory are configured to store accessed data in compatible caches. Each of the caches is compatible with a given protocol coherent memory management bus interspersed between the caches and the system memory.

摘要翻译： 公开了与非均匀处理单元结合操作的一致的缓存系统。 一组第一配置的处理单元具有常规高速缓存，并且通过使用常规MMU（存储器管理单元）直接访问公用或共享系统物理和虚拟地址存储器。 需要访问系统存储器的不同配置和/或其他设备的其他处理器被配置为将访问的数据存储在兼容的高速缓存中。 每个缓存与散列在高速缓存和系统存储器之间的给定协议相干存储器管理总线兼容。

公开(公告)号：US20070174509A1

公开(公告)日：2007-07-26

申请号：US11695436

申请日：2007-04-02

申请人： Michael Day ,  Harm Hofstee ,  Charles Johns ,  Peichum Liu ,  Thuong Truong ,  Takeshi Yamazaki

发明人： Michael Day ,  Harm Hofstee ,  Charles Johns ,  Peichum Liu ,  Thuong Truong ,  Takeshi Yamazaki

IPC分类号： G06F13/28

CPC分类号： G06F13/28

摘要： The present invention provides for a system comprising a DMA queue configured to receive a DMA command comprising a tag, wherein the tag belongs to one of a plurality of tag groups. A counter couples to the DMA queue and is configured to increment a tag group count of the tag group to which the tag belongs upon receipt of the DMA command by the DMA queue and to decrement the tag group count upon execution of the DMA command. A tag group count status register couples to the counter and is configured to store the tag group count for each of the plurality of tag groups. And the tag group count status register is further configured to receive a request for a tag group status and to respond to the request for the tag group status.

摘要翻译： 本发明提供一种包括配置成接收包括标签的DMA命令的DMA队列的系统，其中标签属于多个标签组之一。 计数器耦合到DMA队列，并配置为在DMA队列接收到DMA命令时增加标签组所属标签组的标签组计数，并在执行DMA命令时递减标签组计数。 标签组计数状态寄存器耦合到计数器，并被配置为存储多个标签组中的每一个的标签组计数。 并且标签组计数状态寄存器被进一步配置为接收对标签组状态的请求并响应对标签组状态的请求。

公开(公告)号：US20050055505A1

公开(公告)日：2005-03-10

申请号：US10655365

申请日：2003-09-04

申请人： Michael Day ,  Harm Hofstee ,  Charles Johns ,  James Kahle ,  David Shippy ,  Thuong Truong ,  Takeshi Yamazaki

发明人： Michael Day ,  Harm Hofstee ,  Charles Johns ,  James Kahle ,  David Shippy ,  Thuong Truong ,  Takeshi Yamazaki

IPC分类号： G06F12/00 ,  G06F12/12

CPC分类号： G06F12/126

摘要： The present invention provides for selectively overwriting sets of a cache as a function of a replacement management table and a least recently used function. A class identifier is created as a function of an address miss. A replacement management table is employable to read the class identifier to create a tag replacement control indicia. The cache, comprising a plurality of sets, is employable to disable the replacement of at least one of the plurality of sets as a function of the tag replacement control indicia.

摘要翻译： 本发明提供了根据替换管理表和最近最少使用的功能来选择性地覆盖高速缓存的集合。 根据地址未命中创建类标识符。 替换管理表可用于读取类标识符以创建标签替换控制标记。 包括多个集合的高速缓存可用于根据标签替换控制标记来禁用对多个集合中的至少一个的替换。

公开(公告)号：US20050055507A1

公开(公告)日：2005-03-10

申请号：US10655367

申请日：2003-09-04

申请人： Michael Day ,  Harm Hofstee ,  Charles Johns ,  James Kahle ,  David Shippy ,  Thuong Truong ,  Takeshi Yamazaki

发明人： Michael Day ,  Harm Hofstee ,  Charles Johns ,  James Kahle ,  David Shippy ,  Thuong Truong ,  Takeshi Yamazaki

IPC分类号： G06F12/00 ,  G06F12/12

CPC分类号： G06F12/126

摘要： The present invention provides for selectively overwriting sets of a cache as a function of a replacement management table and a least recently used function. A class identifier is created as a function of an address miss. A replacement management table is employable to read the class identifier to create a tag replacement control indicia. The cache, comprising a plurality of sets, is employable to disable the replacement of at least one of the plurality of sets as a function of the tag replacement control indicia.

摘要翻译： 本发明提供了根据替换管理表和最近最少使用的功能来选择性地覆盖高速缓存的集合。 根据地址未命中创建类标识符。 替换管理表可用于读取类标识符以创建标签替换控制标记。 包括多个集合的高速缓存可用于根据标签替换控制标记来禁用对多个集合中的至少一个的替换。

公开(公告)号：US20060031835A1

公开(公告)日：2006-02-09

申请号：US10912479

申请日：2004-08-05

申请人： Michael Day ,  Harm Hofstee ,  Charles Johns ,  James Kahle

发明人： Michael Day ,  Harm Hofstee ,  Charles Johns ,  James Kahle

IPC分类号： G06F9/46

CPC分类号： G06F1/3203

摘要： The present invention provides for controlling the power consumption of an element. A first power control command is issued by software for the element. It is determined if the power control command corresponds to an allowable power control state for that element as defined by the hardware. If the power control command is not an allowable power control state for that element, the hardware sets the power control at a higher level than the power control state issued by the software. A hierarchy of power consumption is defined for different elements of a chip by software, which provides the minimum level of power consumption by any element or sub-element on a chip.

摘要翻译： 本发明提供用于控制元件的功耗。 第一个功率控制命令由该元件的软件发出。 确定功率控制命令是否对应于由硬件定义的该元件的容许功率控制状态。 如果功率控制命令不是该元件的允许功率控制状态，则硬件将功率控制设置在比由软件发出的功率控制状态更高的水平。 通过软件为芯片的不同元件定义功耗层级，其通过芯片上的任何元件或子元件提供最低功耗水平。

公开(公告)号：US20070041403A1

公开(公告)日：2007-02-22

申请号：US11207970

申请日：2005-08-19

申请人： Michael Day ,  Charles Johns ,  John Liberty ,  Todd Swanson ,  Thuong Truong

发明人： Michael Day ,  Charles Johns ,  John Liberty ,  Todd Swanson ,  Thuong Truong

IPC分类号： G06F15/16 ,  H04J3/16 ,  H04J3/22

CPC分类号： H04L49/9078 ,  H04L49/90 ,  H04L49/901

摘要： A system and method for communicating instructions and data between a processor and external devices are provided. The system and method make use of a channel interface as the primary mechanism for communicating between the processor and a memory flow controller. The channel interface provides channels for communicating with processor facilities, memory flow control facilities, machine state registers, and external processor interrupt facilities, for example. These channels may be designated as blocking or non-blocking. With blocking channels, when no data is available to be read from the corresponding registers, or there is no space available to write to the corresponding registers, the processor is placed in a low power “stall” state. The processor is automatically awakened, via communication across the blocking channel, when data becomes available or space is freed. Thus, the channels of the present invention permit the processor to stay in a low power state.

摘要翻译： 提供了一种用于在处理器和外部设备之间传送指令和数据的系统和方法。 系统和方法利用通道接口作为处理器和存储器流控制器之间通信的主要机制。 通道接口例如提供用于与处理器设备，存储器流控制设备，机器状态寄存器和外部处理器中断设备进行通信的通道。 这些通道可以被指定为阻塞或非阻塞。 使用阻塞通道，当没有数据可用于从相应的寄存器读取时，或没有可用空间写入对应的寄存器时，处理器处于低功耗“停止”状态。 当数据可用或空间被释放时，通过阻塞通道的通信自动唤醒处理器。 因此，本发明的通道允许处理器保持在低功率状态。

公开(公告)号：US20070043936A1

公开(公告)日：2007-02-22

申请号：US11207971

申请日：2005-08-19

申请人： Michael Day ,  Charles Johns ,  John Liberty ,  Todd Swanson

发明人： Michael Day ,  Charles Johns ,  John Liberty ,  Todd Swanson

IPC分类号： G06F7/38

CPC分类号： G06F13/24

摘要： A system and method for communicating with a processor event facility are provided. The system and method make use of a channel interface as the primary mechanism for communicating with the processor event facility. The channel interface provides channels for communicating with processor facilities, memory flow control facilities, machine state registers, and external processor interrupt facilities, for example. These channels may be designated as blocking or non-blocking. With blocking channels, when no data is available to be read from the corresponding registers, or there is no space available to write to the corresponding registers, the processor is placed in a low power “stall” state. The processor is automatically awakened, via communication across the blocking channel, when data becomes available or space is freed. Thus, the channels of the present invention permit the processor to stay in a low power state.

摘要翻译： 提供了一种用于与处理器事件设施进行通信的系统和方法。 系统和方法利用通道接口作为与处理器事件设施通信的主要机制。 通道接口例如提供用于与处理器设备，存储器流控制设备，机器状态寄存器和外部处理器中断设备进行通信的通道。 这些通道可以被指定为阻塞或非阻塞。 使用阻塞通道，当没有数据可用于从相应的寄存器读取时，或没有可用空间写入对应的寄存器时，处理器处于低功耗“停止”状态。 当数据可用或空间被释放时，通过阻塞通道的通信自动唤醒处理器。 因此，本发明的通道允许处理器保持在低功率状态。

公开(公告)号：US20070043926A1

公开(公告)日：2007-02-22

申请号：US11208376

申请日：2005-08-19

申请人： Adam Burns ,  Michael Day ,  Brian Flachs ,  H. Hofstee ,  Charles Johns ,  John Liberty

发明人： Adam Burns ,  Michael Day ,  Brian Flachs ,  H. Hofstee ,  Charles Johns ,  John Liberty

IPC分类号： G06F12/00

CPC分类号： G06F12/0661 ,  G06F12/0223

摘要： A system and method for limiting the size of a local storage of a processor are provided. A facility is provided in association with a processor for setting a local storage size limit. This facility is a privileged facility and can only be accessed by the operating system running on a control processor in the multiprocessor system or the associated processor itself. The operating system sets the value stored in the local storage limit register when the operating system initializes a context switch in the processor. When the processor accesses the local storage using a request address, the local storage address corresponding to the request address is compared against the local storage limit size value in order to determine if the local storage address, or a modulo of the local storage address, is used to access the local storage.

摘要翻译： 提供了用于限制处理器的本地存储器的大小的系统和方法。 与用于设置本地存储大小限制的处理器相关联地提供设施。 该设施是一种特权设施，只能由在多处理器系统或相关处理器本身的控制处理器上运行的操作系统访问。 当操作系统初始化处理器中的上下文切换时，操作系统设置存储在本地存储限制寄存器中的值。 当处理器使用请求地址访问本地存储器时，将与请求地址相对应的本地存储地址与本地存储限制大小值进行比较，以便确定本地存储地址或本地存储地址的模数是否为 用于访问本地存储。