摘要:
In a computer system with multiple processing units, power to one or more of the processing units is turned off while the other processing units remain powered on. The processing unit that is powered off may be a GPU on a graphics adapter card, and power to this GPU is controlled by turning on and off the power supplied through a voltage regulator. With this configuration, power to the GPU on the graphics adapter card can be turned off when it is not in use or when it is being used for graphics processing that another graphics processor can handle.
摘要:
A bridge associated with a broadcast aperture facilitates the transfer of rendering commands and data between a processor and multiple graphics devices. The bridge receives data written by the processor to the broadcast aperture and forwards it to multiple graphics devices, eliminating the need for the processor to perform duplicative(?) write operations. During system initialization, a broadcast aperture is allocated to the bridge in address space based on an aperture size value set using a system configuration utility and stored in system configuration memory. A graphics driver activates the broadcast aperture by sending unicast aperture parameters associated with the multiple graphics devices to the bridge via a bridge driver. Upon activating the broadcast aperture, multiple graphics devices can be operated in parallel to improve rendering performance. Parallel rendering techniques include split-frame, alternate frame, and combined split- and alternate frame rendering.
摘要:
A novel network architecture that integrates the functions of an Internet protocol (IP) router into a network processing unit (NPU) that resides in a host computer's chipset such that the host computer's resources are perceived as separate network appliances. The NPU appears logically separate from the host computer even though, in one embodiment, it is sharing the same chip.
摘要:
A novel network architecture that integrates the functions of an internet protocol (IP) router into a network processing unit (NPU) that resides in a host computer's chipset such that the host computer's resources are perceived as separate network appliances. The NPU appears logically separate from the host computer even though, in one embodiment, it is sharing the same chip.
摘要:
A compositing buffer having an adjustable size and configuration reduces complexity and size of a multimedia processor integrated circuit. The compositing buffer may be optimized for lower resolutions, thus reducing its overall size and complexity, while still providing support for higher resolutions which may be required to support a particular standard. A pixel mapping logic receives data indicating the number of lines per band and number of pixels per line, as well as color depth (or any two of these data) and correctly maps compositing RAM bank access requests to the correct pixel location. In a second embodiment of the present invention, the variable band size of the compositing buffer may allow for an external memory to be used for a compositing buffer, for example, a portion of the display memory (frame buffer). While such an embodiment may reduce overall bandwidth, the associated cost reduction may make such an apparatus appealing for low cost applications. Band size may be adjusted depending upon pixel resolution and depth. In a third embodiment of the present invention, band size may be varied within a frame depending upon the number of layers or the complexity of each image portion. Simple portions of an image, have few layers, may be rendered using wide bands, whereas complex areas may be rendered in narrower bands.
摘要:
A Central Processing Unit (CPU) debugging device and method therefor is disclosed which provides data entering and interrogating devices which will temporarily stop all CPU execution when desired by a user and allow a non-destructive intrusion into the contents of any of the CPU internal registers, state bits, and cache and local memories. After the desired CPU contents have been reviewed and subsequently altered or maintained by a user, the CPU execution may be resumed.
摘要:
A novel network architecture that integrates the functions of an internet protocol (IP) router into a network processing unit (NPU) that resides in a host computer's chipset such that the host computer's resources are perceived as separate network appliances. The NPU appears logically separate from the host computer even though, in one embodiment, it is sharing the same chip.
摘要:
A novel network architecture that integrates the functions of an internet protocol (IP) router into a network processing unit (NPU) that resides in a host computer's chipset such that the host computer's resources are perceived as separate network appliances. The NPU appears logically separate from the host computer even though, in one embodiment, it is sharing the same chip.
摘要:
A novel network architecture that integrates the functions of an internet protocol (IP) router into a network processing unit (NPU) that resides in a host computer's chipset such that the host computer's resources are perceived as separate network appliances. The NPU appears logically separate from the host computer even though, in one embodiment, it is sharing the same chip.
摘要:
A virtual memory manager for a multi-media engine allows individual media units to operate in their own virtual space in much the same way as a software program operating in virtual mode. The virtual memory controller performs address translation or mapping to the correct physical memory location (in local memory or system memory) and will also convert the data stream to or from a compressed format. In addition, the virtual memory controller provides a unified TLB (translation lookaside buffer) available to all media units. The TLB has four types of pointer entries which are controlled by two bits. The first bit controls whether the TLB entry is a direct map or a pointer to another translation table. the second bit controls whether the TLB entry is stored in a compressed format. The overall concept may allow dynamic load balancing between local media memory and system memory.