Abstract: Methods and systems are provided for geometry-based virtual memory management. The methods and systems use Boolean space algebra operations to manage allocation and deallocation of tiled virtual memory pages in a tiled virtual memory provided by a tiled virtual memory subsystem. A region quadtree may be maintained representing a current allocation state of tiled virtual memory pages within a container. The region quadtree may be used to locate a rectangle or two dimensional (2D) array of unallocated tiled virtual memory pages, and physical memory pages may be mapped to tiled virtual memory pages in the rectangle by updating a lookup table used to translate tiled virtual memory page addresses to physical memory page addresses. A union or intersection of region quadtrees may be performed to generate a new region quadtree representing a new current allocation state of the tiled virtual memory pages.

Abstract: Methods and mobile devices are provided for asymmetric independent processing of audio streams in a system on a chip (SOC). More specifically, independent audio paths are provided for processors performing audio processing on the SOC and mixing of decoded audio samples from the processors is performed digitally on the SOC by a hardware digital mixer.

Abstract: Methods, digital systems, and computer readable media are provided for managing a tiled virtual memory by maintaining a region quadtree representing a current allocation state of tiled virtual memory pages in the tiled virtual memory.

Abstract: Methods and mobile devices are provided for asymmetric independent processing of audio streams in a system on a chip (SOC). More specifically, independent audio paths are provided for processors performing audio processing on the SOC and mixing of decoded audio samples from the processors is performed digitally on the SOC by a hardware digital mixer.