Solaris DDI specific (Solaris DDI).
The ddi_dma_cookie structure (ddi_dma_cookie_t) contains DMA address information required to program a DMA engine. It is filled in by a call to ddi_dma_htoc.9f or ddi_dma_movwin.9f when a driver wants to get device specific DMA transfer information out of a DMA handle or DMA window (see ddi_dma_setup.9f
unsigned long dmac_address; /* unsigned 32 bit address */ u_int dmac_size; /* unsigned 32 bit size */ u_int dmac_type; /* bus specific type bits */
dmac_address specifies an unsigned 32 bit address appropriate for programming the device's DMA engine.
dmac_size describes the length of the transfer.
dmac_type contains bus specific type bits (if appropriate). For example, a device on a VME bus will have VME address modifier bits placed here.
Created by unroff & hp-tools. © by Hans-Peter Bischof. All Rights Reserved (1997).
Last modified 21/April/97