摘要:
In one embodiment, a processor includes: a plurality of cores; a plurality of caches associated with the plurality of cores; a dynamic profiler to identify a plurality of instructions having an activity level greater than a threshold level, the dynamic profiler a shared resource of the processor; and a controller to dynamically enable one or more of the plurality of cores to access the dynamic profiler, where the controller is to enable the dynamic profiler to provide hint information regarding the plurality of instructions to a first core of the plurality of cores. Other embodiments are described and claimed.
摘要:
Methods, apparatus, systems and articles of manufacture to perform block-based static region detection for video processing are disclosed. Disclosed example video processing methods include segmenting pixels in a first frame of a video sequence into a first plurality of pixel blocks. Such example methods can also include processing the first plurality of pixel blocks and a second plurality of pixel blocks corresponding to a prior second frame of the video sequence to create, based on a first criterion, a map identifying one or more static pixel blocks in the first plurality of pixel blocks. Such example methods can further include identifying, based on the map, a static region in the first frame of the video sequence.
摘要:
An instruction processing device has a of pipe-line stage with a functional unit for executing a command from an instruction. A first register unit is coupled to the functional unit for storing a result of execution of the command when the command has reached a first one of the pipeline stages, and for supplying bypass operand data to the functional unit. A register file is coupled to the functional unit for storing the result when the command has reached a second one of the pipeline stages, downstream from the first one of the pipeline stages, and for supplying operand data to the functional unit. A disable circuit is coupled to selectively disable storing of the results in the register file under control of the instructions.
摘要:
A data processing system is provided for processing video data on a window basis. At least one memory unit (L1) is provided for fetching and storing video data from an image memory (IM) according to a first window (R) in a first scanning order. At least one second memory unit (L0) is provided for fetching and storing video data from the first memory unit (L1) according to a second window in a second scanning order (SO). Furthermore, at least one processing unit (PU) is provided for performing video processing on the video data of the second window as stored in the at least one second memory unit (L0) based on the second scanning order (SO). The second scanning order (SO) is a meandering scanning order being orthogonal to the first scanning order (SO1).
摘要:
A programmable data processing circuit has a memory for storing pixel values, or more generally data values as a function of position in a signal. The programmable data processing circuit supports instructions that include an indication of a selected parameter value set that indicates how a plurality of data values must be arranged for parallel output from a memory. Instructions that indicate different parameter value sets can be executed intermixed with one another. The programmable data processing circuit responds to instructions of this type by retrieving the selected parameter value sets from a parameter storage circuit (246), and controlling a switching circuit (22) between a memory port (21) of a memory circuit (20) and a data port (26) at least partly dependent on the selected parameter value set.
摘要:
A programmable data processing circuit has a memory for storing pixel values, or more generally data values as a function of position in a signal. The programmable data processing circuit supports instructions that include an indication of a selected parameter value set that indicates how a plurality of data values must be arranged for parallel output from a memory. Instructions that indicate different parameter value sets can be executed intermixed with one another. The programmable data processing circuit responds to instructions of this type by retrieving the selected parameter value sets from a parameter storage circuit (246), and controlling a switching circuit (22) between a memory port (21) of a memory circuit (20) and a data port (26) at least partly dependent on the selected parameter value set.
摘要:
The present invention relates to a data processing device (10) comprising a processing unit (12) and a memory unit (14), and to a method for controlling operation of a memory unit (14) of a data processing device. The memory unit (14) comprises a main memory (16), a low- level cache memory (20.2), which is directly connected to the processing unit (12) and adapted to hold all pixels of a currently active sliding search area for reading access by the processing unit (12), a high-level cache memory (18), which is connected between the low-level cache memory and the frame memory, and a first pre-fetch buffer (20.1), which is connected between the high-level cache memory and the low- level cache memory and which is adapted to hold one search-area column or one search-area line of pixel blocks, depending on the scan direction and scan order followed by the processing unit. Reading and fetching functionalities are decoupled in the memory unit (14). The fetching functionality is concentrated on the higher cache level, while the reading functionality is concentrated on the lower cache level. This way concurrent reading and fetching can be achieved, thus enhancing the performance of a data processing device.
摘要:
The data processing device has a plurality of functional units and issues instructions in successive instruction cycles. Instructions of a first type are each intended for one functional unit at a time. An instruction of a second type causes a combination of functional units to respond in the same instruction execution cycle, a result from one functional unit being used by another as part of the execution of the same instruction. Preferably, the device supports alternative operation at a number of different instruction cycle rates, dependent on whether an executed program segment contains instructions of the second type. The fastest instruction cycle rate does not allow execution of the instruction of the second type, because operation by different functional units does not fit within the instruction execution cycle. When possible, the device saves power by switching to a slower clock rate, in which case instructions of the second type are executed to save additional power, by reducing the number of instructions that have to be issued.
摘要:
An instruction processing device has a of pipe-line stage with a functional unit for executing a command from an instruction. A first register unit is coupled to the functional unit for storing a result of execution of the command when the command has reached a first one of the pipeline stages, and for supplying bypass operand data to the functional unit. A register file is coupled to the functional unit for storing the result when the command has reached a second one of the pipeline stages, downstream from the first one of the pipeline stages, and for supplying operand data to the functional unit. A disable circuit is coupled to control of the instructions.
摘要:
A data processing system is provided for processing video data on a window basis. At least one memory unit (L1) is provided for fetching and storing video data from an image memory (IM) according to a first window (R) in a first scanning order. At least one second memory unit (L0) is provided for fetching and storing video data from the first memory unit (L1) according to a second window in a second scanning order (SO). Furthermore, at least one processing unit (PU) is provided for performing video processing on the video data of the second window as stored in the at least one second memory unit (L0) based on the second scanning order (SO). The second scanning order (SO) is a meandering scanning order being orthogonal to the first scanning order (SO1).