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61. 发明申请

US20090207178A1 Video Processing with Multiple Graphical Processing Units 有权
标题翻译：具有多个图形处理单元的视频处理
公开(公告)号：US20090207178A1
公开(公告)日：2009-08-20
申请号：US12430797
申请日：2009-04-27
申请人： Hassane S. Azar , Franck R. Diard
发明人： Hassane S. Azar , Franck R. Diard
IPC分类号： G06F15/16
CPC分类号： H04N7/012 , G06F3/14 , G06T1/20 , G09G5/363 , G09G5/399 , G09G2360/06
摘要： One embodiment of a video processor includes a first media processing device coupled to a first memory and a second media processing device coupled to a second memory. The second media processing device is coupled to the first media processing device via a scalable bus. A software driver configures the media processing devices to provide video processing functionality. The scalable bus carries video data processed by the second media processing device to the first media processing device where the data is combined with video data processed by the first media processing device to produce a processed video frame. The first media processing device transmits the combined video data to a display device. Each media processing device is configured to process separate portions of the video data, thereby enabling the video processor to process video data more quickly than a single-GPU video processor.
摘要翻译：视频处理器的一个实施例包括耦合到第一存储器的第一媒体处理设备和耦合到第二存储器的第二媒体处理设备。第二媒体处理设备经由可伸缩总线耦合到第一媒体处理设备。软件驱动程序配置媒体处理设备以提供视频处理功能。可扩展总线将由第二媒体处理设备处理的视频数据传送到第一媒体处理设备，其中数据与由第一媒体处理设备处理的视频数据组合以产生经处理的视频帧。第一媒体处理装置将组合的视频数据发送到显示装置。每个媒体处理设备被配置为处理视频数据的分开的部分，从而使视频处理器比单GPU视频处理器更快地处理视频数据。

62. 发明授权

US07174436B1 Method and system for maintaining shadow copies of data using a shadow mask bit 有权
标题翻译：使用遮罩位保持数据影子副本的方法和系统
公开(公告)号：US07174436B1
公开(公告)日：2007-02-06
申请号：US10680126
申请日：2003-10-08
申请人： Brian K. Langendorf , Christopher W. Johnson , Franck R. Diard
发明人： Brian K. Langendorf , Christopher W. Johnson , Franck R. Diard
IPC分类号： G06F12/16
CPC分类号： G06F12/0815 , G06F12/1027
摘要： In a multi-processor, multi-memory system, a technique designates portions of a local memory as being regions to be shadowed. A shadow control unit detects write operations to those regions designated for shadowing. The shadow control unit then executes a cloning of a write operation designated for a local memory region to be shadowed and provides the cloned data to a memory space in system memory which corresponds to the local memory region which is being shadowed.
摘要翻译：在多处理器，多存储器系统中，技术将本地存储器的部分指定为要被遮蔽的区域。阴影控制单元检测对指定为阴影的区域的写入操作。阴影控制单元然后执行为要被遮蔽的本地存储器区域指定的写入操作的克隆，并且将克隆的数据提供给系统存储器中对应于被遮蔽的本地存储器区域的存储器空间。

63. 发明授权

US07065630B1 Dynamically creating or removing a physical-to-virtual address mapping in a memory of a peripheral device 有权
标题翻译：在外围设备的存储器中动态创建或删除物理到虚拟地址映射
公开(公告)号：US07065630B1
公开(公告)日：2006-06-20
申请号：US10650593
申请日：2003-08-27
申请人： Herbert O. Ledebohm , Mark A. Einkauf , Franck R. Diard , Jeffrey C. Doughty
发明人： Herbert O. Ledebohm , Mark A. Einkauf , Franck R. Diard , Jeffrey C. Doughty
IPC分类号： G06F12/02
CPC分类号： G06F12/1081
摘要： Systems and methods for providing on-demand memory management. In response to a mapping request from a device driver or other program, a first portion of the memory is mapped to one or more virtual addresses in a first region of a virtual memory space so that it can be directly accessed by the CPU. In response to an unmapping request the first portion of the memory is unmapped. Mapping and unmapping requests may be made at any time.
摘要翻译：用于提供按需内存管理的系统和方法。响应于来自设备驱动器或其他程序的映射请求，存储器的第一部分被映射到虚拟存储器空间的第一区域中的一个或多个虚拟地址，使得其可以被CPU直接访问。响应于非映射请求，存储器的第一部分被取消映射。可以随时进行映射和取消映射请求。

64. 发明申请

US20140082120A1 EFFICIENT CPU MAILBOX READ ACCESS TO GPU MEMORY 有权
标题翻译：高效的CPU邮箱读取访问GPU内存
公开(公告)号：US20140082120A1
公开(公告)日：2014-03-20
申请号：US13620232
申请日：2012-09-14
申请人： Dennis K. MA , Karan Gupta , Lei Tian , Franck R. Diard , Praveen Jain , Wei-Je Huang , Atul Kalambur
发明人： Dennis K. MA , Karan Gupta , Lei Tian , Franck R. Diard , Praveen Jain , Wei-Je Huang , Atul Kalambur
IPC分类号： G06F15/167
CPC分类号： G06F15/167 , G06F15/16 , G06F15/163 , G06F15/17 , G06F15/173
摘要： Techniques are disclosed for peer-to-peer data transfers where a source device receives a request to read data words from a target device. The source device creates a first and second read command for reading a first portion and a second portion of a plurality of data words from the target device, respectively. The source device transmits the first read command to the target device, and, before a first read operation associated with the first read command is complete, transmits the second read command to the target device. The first and second portions of the plurality of data words are stored in a first and second portion a buffer memory, respectively. Advantageously, an arbitrary number of multiple read operations may be in progress at a given time without using multiple peer-to-peer memory buffers. Performance for large data block transfers is improved without consuming peer-to-peer memory buffers needed by other peer GPUs.
摘要翻译：公开了用于对等数据传输的技术，其中源设备从目标设备接收到读取数据字的请求。源设备分别创建用于从目标设备读取多个数据字的第一部分和第二部分的第一和第二读取命令。源设备向目标设备发送第一读取命令，并且在与第一读取命令相关联的第一读取操作完成之前，将第二读取命令发送到目标设备。多个数据字的第一和第二部分分别存储在缓冲存储器的第一和第二部分中。有利地，任意数量的多个读取操作可以在给定时间进行，而不使用多个对等存储器缓冲器。改进了大数据块传输的性能，而不消耗其他对等GPU所需的对等内存缓冲区。

65. 发明授权

US08395619B1 System and method for transferring pre-computed Z-values between GPUs 有权
标题翻译：在GPU之间传输预先计算的Z值的系统和方法
公开(公告)号：US08395619B1
公开(公告)日：2013-03-12
申请号：US12244705
申请日：2008-10-02
申请人： Franck R. Diard
发明人： Franck R. Diard
IPC分类号： G06T15/40 , G06T15/00
CPC分类号： G06T15/005 , G06T15/405
摘要： One embodiment of the present invention sets forth a method for pre-computing Z-values using an IGPU and, subsequently, conveying these Z-values to a DGPU. The graphics driver partitions the display into rectangular M-by-N tiles of pixels. For each tile, the graphics driver generates a quad geometry that encompasses the corresponding pixels. For each image frame, the graphics driver configures the IGPU to generate and down-sample a Z-buffer, creating a coarse Z-texture that contains a Z-value for each tile. The graphics driver transfers the coarse Z-texture to the system memory and configures the DGPU to apply the coarse Z-texture to the quad geometries, thereby generating a coarse Z-buffer in which the M-by-N pixels included in each tile are assigned the Z-value for the particular tile. Among other things, this technique enables the IGPU to pre-compute Z-values for the DGPU without straining the system memory bandwidth or defeating the Z-buffer compression techniques used by the DGPU.
摘要翻译：本发明的一个实施例提出了一种使用IGPU预先计算Z值的方法，并且随后将这些Z值传送给DGPU。图形驱动程序将显示器分割成矩形的M×N像素像素。对于每个图块，图形驱动程序生成包含相应像素的四维几何。对于每个图像帧，图形驱动程序配置IGPU以生成和下采样Z缓冲区，创建包含每个图块的Z值的粗糙Z纹理。图形驱动器将粗Z纹理传送到系统存储器并配置DGPU以将粗Z纹理应用于四面体几何形状，从而生成粗Z缓冲器，其中每个瓦片中包括的M×N像素为为特定瓦片分配了Z值。除此之外，这种技术使得IGPU能够预先计算DGPU的Z值，而不会使系统内存带宽变窄或者击败DGPU使用的Z缓冲区压缩技术。

66. 发明授权

US08319780B2 System, method, and computer program product for synchronizing operation of a first graphics processor and a second graphics processor in order to secure communication therebetween 有权
标题翻译：用于同步第一图形处理器和第二图形处理器的操作的系统，方法和计算机程序产品，以便确保其间的通信
公开(公告)号：US08319780B2
公开(公告)日：2012-11-27
申请号：US12182820
申请日：2008-07-30
申请人： Amit D. Parikh , Franck R. Diard
发明人： Amit D. Parikh , Franck R. Diard
IPC分类号： G06F15/00 , G06F15/16 , G06F15/80 , G06F11/30 , G06F12/14 , G06F7/04
CPC分类号： G06F9/52
摘要： A system, method, and computer program product are provided for synchronizing operation of a first graphics processor and a second graphics processor in order to secure communication therebetween. A first graphics processor is provided for processing video data. In addition, a second graphics processor is provided for processing the video data. Furthermore, a data structure is provided for use in synchronizing operation of the first graphics processor and the second graphics processor in order to secure communication therebetween.
摘要翻译：提供了一种系统，方法和计算机程序产品，用于使第一图形处理器和第二图形处理器的操作同步以确保其间的通信。提供第一图形处理器用于处理视频数据。此外，提供第二图形处理器用于处理视频数据。此外，提供数据结构用于同步第一图形处理器和第二图形处理器的操作，以便确保其间的通信。

67. 发明授权

US08259119B1 System and method for switching between graphical processing units 有权
标题翻译：用于在图形处理单元之间切换的系统和方法
公开(公告)号：US08259119B1
公开(公告)日：2012-09-04
申请号：US11937475
申请日：2007-11-08
申请人： Franck R. Diard
发明人： Franck R. Diard
IPC分类号： G06F15/16 , G06F1/26 , G06F1/32 , G06F1/00
CPC分类号： G06F9/4856 , G06F1/3293 , Y02D10/122 , Y02D10/24 , Y02D10/32
摘要： One embodiment of the present invention sets forth a technique for dynamically switching between a power-saving integrated graphics processing unit (IGPU) and a higher-performance discrete graphics processing unit (DGPU). This technique uses a single graphics driver and a single digital-to-analog converter (DAC) and leverages the GPU switching capability of the operating system to ensure a seamless transition. When additional graphics performance is desired, the system enters a hybrid graphics mode. In this mode, the DGPU is powered-up, and the graphics driver maintains the current display, while the operating system switches applications running on the IGPU to the DGPU. While in the hybrid graphics mode, the DGPU performs the graphics processing, and the graphics driver transmits the rendered images from the DGPU to the IGPU local memory and, then, to the IGPU DAC. This image transmission allows applications to fully exploit the processing capabilities of the DGPU, while using the display device connected to the IGPU.
摘要翻译：本发明的一个实施例提出了一种用于在节能集成图形处理单元（IGPU）和更高性能的分立图形处理单元（DGPU）之间动态切换的技术。该技术使用单个图形驱动程序和单个数模转换器（DAC），并利用操作系统的GPU切换能力确保无缝转换。当需要额外的图形性能时，系统进入混合图形模式。在此模式下，DGPU上电，图形驱动程序维护当前显示，操作系统将IGPU上运行的应用程序切换到DGPU。在混合图形模式下，DGPU执行图形处理，图形驱动程序将渲染的图像从DGPU传输到IGPU本地存储器，然后传输到IGPU DAC。该图像传输允许应用程序在使用连接到IGPU的显示设备时充分利用DGPU的处理能力。

68. 发明授权

US08233000B1 System and method for switching between graphical processing units 有权
公开(公告)号：US08233000B1
公开(公告)日：2012-07-31
申请号：US11937468
申请日：2007-11-08
申请人： Franck R. Diard
发明人： Franck R. Diard
IPC分类号： G06F15/16 , G06F1/00 , G06F1/26 , G06F1/32
CPC分类号： G06F9/5044 , G06F1/3206 , G06F1/3265 , G06F1/3293 , G06F3/14 , G06F9/4856 , G09G5/363 , G09G2330/021 , G09G2360/06 , Y02D10/122 , Y02D10/153 , Y02D10/22 , Y02D10/24 , Y02D10/32
摘要： One embodiment of the present invention sets forth a technique for dynamically switching between a power-saving integrated graphics processing unit (IGPU) and a higher-performance discrete graphics processing unit (DGPU). This technique uses a single graphics driver and a single digital-to-analog converter (DAC) and leverages the GPU switching capability of the operating system to ensure a seamless transition. When additional graphics performance is desired, the system enters a hybrid graphics mode. In this mode, the DGPU is powered-up, and the graphics driver maintains the current display, while the operating system switches applications running on the IGPU to the DGPU. While in the hybrid graphics mode, the DGPU performs the graphics processing, and the graphics driver transmits the rendered images from the DGPU to the IGPU local memory and, then, to the IGPU DAC. This image transmission allows applications to fully exploit the processing capabilities of the DGPU, while using the display device connected to the IGPU.

69. 发明授权

US08228337B1 System and method for temporal load balancing across GPUs 有权
标题翻译：用于跨GPU的时间负载平衡的系统和方法
公开(公告)号：US08228337B1
公开(公告)日：2012-07-24
申请号：US12245650
申请日：2008-10-03
申请人： Andrei Khodakovsky , Franck R. Diard
发明人： Andrei Khodakovsky , Franck R. Diard
IPC分类号： G06F15/16 , G06T15/40 , G09G5/00
CPC分类号： G06T15/005 , G06T15/405 , G06T2200/28 , G06T2210/56
摘要： One embodiment of the present invention sets forth a method for dynamically load balancing rendering operations across an IGPU and a DGPU. For each frame, the graphics driver configures the IGPU to pre-compute Z-values for a portion of the display surface and to write feedback data to the system memory indicating the time that the IGPU used to process the frame. The graphics driver then configures the DGPU to use the pre-computed Z-values while rendering to the complete display surface and to write feedback data to the system memory indicating the time that the DGPU used to process the frame. The graphics driver uses the feedback data from the IGPU and DGPU in conjunction with the percentage of the display surface that the IGPU Z-rendered for the frame to scale the portion of the display surface that the IGPU Z-renders for one or more subsequent frames. In this fashion, overall processing within the graphics pipeline is optimized across the IGPU and DGPU.
摘要翻译：本发明的一个实施例提出了一种用于在IGPU和DGPU之间动态地负载平衡渲染操作的方法。对于每个帧，图形驱动程序配置IGPU以为显示表面的一部分预先计算Z值，并将反馈数据写入系统存储器，指示IGPU用于处理帧的时间。然后，图形驱动程序将DGPU配置为使用预计算的Z值，同时渲染到完整的显示表面，并将反馈数据写入系统内存，指示DGPU用于处理帧的时间。图形驱动程序使用来自IGPU和DGPU的反馈数据结合显示表面的百分比，IGPU Z渲染为帧缩放显示表面的部分，IGPU Z呈现一个或多个后续帧。以这种方式，图形流水线内的整体处理在IGPU和DGPU之间进行了优化。

70. 发明授权

US08179394B1 Cull streams for fine-grained rendering predication 有权
公开(公告)号：US08179394B1
公开(公告)日：2012-05-15
申请号：US11956309
申请日：2007-12-13
申请人： Cass W. Everitt , Franck R. Diard
发明人： Cass W. Everitt , Franck R. Diard
IPC分类号： G06T15/40 , G06T15/50 , G06T15/10 , G06T1/00 , G06F15/80
CPC分类号： G06T15/40 , G06T2200/28 , G06T2210/12
摘要： One embodiment of the present invention sets forth a technique to perform fine-grained rendering predication using an IGPU and a DGPU. A graphics driver divides a 3D object into batches of triangles. The IGPU processes each batch of triangles through a modified rendering pipeline to determine if the batch is culled. The IGPU writes bits into a bitstream corresponding to the visibility of the batches. The DGPU reads bits from the bitstream and performs full-blown rendering, including shading, but only on the batches of triangles whose bit indicates that the batch is visible. Advantageously, this approach to rendering predication provides fine-grained culling without adding unnecessary overhead, thereby optimizing both hardware resources and performance.

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