US 2013/0086315 A1 · DIRECT MEMORY ACCESS WITHOUT MAIN MEMORY IN A SEMICONDUCTOR STORAGE DEVICE-BASED SYSTEM

Abstract

In general, embodiments of the present invention provide an approach for direct memory access (DMA) without main memory for a semiconductor storage device (SSD)-based system. Specifically, in a typical embodiment, an input/output hub (IOH) is provided with an inter-DMA engine. The IOH is coupled to a central processing unit (CPU), a set of double data rate (DDR) SSD memory disk units, and a graphics card. The graphics card can comprise a cache memory unit or other type of memory unit. Among other things, this embodiment provides one or more of the following features: interchangeability of hardware; resource allocation for DMA in the CPU utilizes inter-DMA resources; direct data transfer to the graphics card/processor; and/or no need to depend on a main memory comment needed in previous approaches.

Claims20

Dependent claims

A direct memory access (DMA) system for a semiconductor storage device (SSD)-based system, comprising:

an input/out hub (IOH) having an inter-DMA engine;
a central processing unit (CPU) coupled to the IOH;
a set of double data rate (DDR) SSD memory disk units coupled to the IOH;
and
a graphics card coupled to the IOH, the graphics card being configured to receive graphics data from the set of DDR SSD memory disk units via the inter-DMA engine.

2 more elements

Dependencies are inferred from the claim text.

Direct memory access without main memory in a semiconductor storage device-based system

Life of this patent

Direct memory access without main memory in a semiconductor storage device-based system

Life of this patent

Abstract

Claims20