Abstract:
A computing device and methods for exposing a solid-state non-volatile memory element to multiple masters in a computing device are disclosed. A portion of a solid-state non-volatile memory element includes code and data for use by a non-boot processing resource. A host controller in communication with the solid-state non-volatile memory element is modified to receive and respond to a resource identifier unique to the processing resource that is requesting read access to the solid-state non-volatile memory element. Logic executed by a boot master and logic executed by a non-boot processing resource are synchronized in response to a set of indicators.
Abstract:
Various embodiments of methods and systems for managing bus bandwidth allocation in a system on a chip are disclosed. Certain embodiments monitor a high speed bus for a measurement window of time to identify valid bits uniquely associated with transaction requests issued by a master processing engine. The method continues to monitor the bus over the window to identify completed transactions. A latency value is calculated by subtracting a target latency from an actual latency for each completed transaction. The latency value is aggregated in a counter. At the conclusion of the window, if the aggregated latency value is positive, the method may conclude that the average latency per transaction over the window exceeded the target latency per transaction and that the bandwidth allocated to the engine should be increased.
Abstract:
Various embodiments of systems and methods are disclosed for reducing volatile memory standby power in a portable computing device. One such method involves receiving a request for a volatile memory device to enter a standby power mode. One or more compression parameters are determined for compressing content stored in a plurality of banks of the volatile memory device. The stored content is compressed based on the one or more compression parameters to free-up at least one of the plurality of banks. The method disables self-refresh of at least a portion of one or more of the plurality of banks freed-up by the compression during the standby power mode.