.\" This manpage has been automatically generated by docbook2man 
.\" from a DocBook document.  This tool can be found at:
.\" <http://shell.ipoline.com/~elmert/comp/docbook2X/> 
.\" Please send any bug reports, improvements, comments, patches, 
.\" etc. to Steve Cheng <steve@ggi-project.org>.
.TH "SN_PCI_DMA_SUPPORTED" "" "06 October 2005" "" ""

.SH NAME
sn_pci_dma_supported \- test a DMA mask
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
int sn_pci_dma_supported  (struct pci_dev * \fIhwdev\fB, u64 \fImask\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIhwdev\fB\fR
device to test
.TP
\fB\fImask\fB\fR
DMA mask to test
.SH "DESCRIPTION"
.PP
Return whether the given PCI device DMA address mask can be supported
properly.  For example, if your device can only drive the low 24-bits
during PCI bus mastering, then you would pass 0x00ffffff as the mask to
this function.  Of course, SN only supports devices that have 32 or more
address bits when using the PMU.  We could theoretically support <32 bit
cards using direct mapping, but we'll worry about that later--on the off
chance that someone actually wants to use such a card.