K 10
svn:author
V 6
marcel
K 8
svn:date
V 27
2013-01-09T05:02:55.413560Z
K 7
svn:log
V 453
Add the BUSDMA_ALLOC_CONSISTENT flag. Pass it along in the mtag and save
it in the memory descriptor.
The flag tells the backend that the allocation needs a coherent and
unbuffered (synchronous) DMA mapping because it's used for a CPU and
device handshake protocol, such as mailboxes and/or buffer rings.
On the SGI Altix, this means that we cannot use a direct-mapped 32-bit
DMA address, nor a 64-bit DAC address when the PCI bus is not in PCI-X
mode.

END