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.TH "SN_DMA_UNMAP_SINGLE" "9" "09 October 2005" "" ""

.SH NAME
sn_dma_unmap_single \- unamp a DMA mapped page
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
void sn_dma_unmap_single  (struct device * \fIdev\fB, dma_addr_t \fIdma_addr\fB, size_t \fIsize\fB, int \fIdirection\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIdev\fB\fR
device to sync
.TP
\fB\fIdma_addr\fB\fR
DMA address to sync
.TP
\fB\fIsize\fB\fR
size of region
.TP
\fB\fIdirection\fB\fR
DMA direction
.SH "DESCRIPTION"
.PP
This routine is supposed to sync the DMA region specified
by \fIdma_handle\fR into the coherence domain.  On SN, we're always cache
coherent, so we just need to free any ATEs associated with this mapping.