Request controller, processing unit, method for controlling requests and computer program product

Abstract

A request controller for controlling processing of requests by one or more semiconductor data processing unit. The resource controller includes a controller input for receiving a request for the processing unit to switch a context of the processing unit or to switch the processing unit from a current an operation to another operation. The resource controller includes a resource budget memory in which one or more budget value can be stored. The budget value represents an amount of a resource of the processing unit. The resource controller further has a budget controller which includes a first budget controller input connected to the request controller input. A second budget controller input is connected to the memory. A comparator is connected to the first budget controller input and the second controller input, for comparing a consumption value associated with the request with the budget value. The comparator includes a comparator output for outputting a request grant signal when the comparison satisfies a predetermined grant criterion and outputting a request reject value when the comparison meets a predetermined reject criterion. A data controller is connected to the resource budget memory and the comparator output, for adjusting the budget value when the request grant signal is outputted.

Dependencies are inferred from the claim text.