According to the PCI Bus Binding to IEEE 1275, the dma-alloc, dma-free,
dma-map-in, dma-map-out and dma-sync functions have to be provided by the
PCI bus node, not by the PCI device node, so I moved these functions to the
PHB node now. Since the "ibm,dma-window" property is still located in the
device node instead, I had to add a little hack to the $call-parent method
to remember the calling child, so that the parent node (the PHB node) can
access that property of the calling child.
Also added map-in and map-out functions now according the the PCI Bus Binding.
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
2d3eabca48