Data Fields
struct ps3_dma_region *	region

unsigned long	lpar_addr

unsigned long	bus_addr

unsigned long	len

struct list_head	link

unsigned int	usage_count

Detailed Description

dma_chunk - A chunk of dma pages mapped by the io controller. - The dma region that owns this chunk. : Starting lpar address of the area to map. : Starting ioc bus address of the area to map. : Length in bytes of the area to map. A struct list_head used with struct ps3_dma_region.chunk_list, the list of all chuncks owned by the region.

This implementation uses a very simple dma page manager based on the dma_chunk structure. This scheme assumes that all drivers use very well behaved dma ops.

Definition at line 372 of file mm.c.