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.TH "TIOCA_DMA_D64" "9" "09 October 2005" "" ""

.SH NAME
tioca_dma_d64 \- create a DMA mapping using 64-bit direct mode
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
uint64_t tioca_dma_d64  (unsigned long \fIpaddr\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIpaddr\fB\fR
system physical address
.SH "DESCRIPTION"
.PP
Map \fIpaddr\fR into 64-bit CA bus space.  No device context is necessary.
.SH "BITS 53"
.PP
0 come from the coretalk address.  We just need to mask in the
following optional bits of the 64-bit pci address:
.SH "63"
.PP
60 - Coretalk Packet Type -  0x1 for Mem Get/Put (coherent)
0x2 for PIO (non-coherent)
We will always use 0x1
.SH "55"
.PP
55 - Swap bytes     Currently unused