On Fri, Feb 11, 2011 at 03:19:51PM -0600, Meador Inge wrote: > 1. Hardware specific bits somewhere under '.../arch/*'. Drivers > for the MPIC message registers on Power and OMAP4 mailboxes, for > example. > 2. A higher level driver under '.../drivers/mailbox/*'. That the > pieces in (1) would register with. This piece would expose the > main kernel API. > 3. Userspace interfaces for accessing the mailboxes. A > '/dev/mailbox1', '/dev/mailbox2', etc... mapping, for example.
How about using virtio for all of this and having the mailbox as a notification/message passing driver for the virtio backend? There are already virtio console and network drivers that could be useful for the userspace part of it. drivers/virtio/virtio_ring.c might be a good starting point if you thought there was some mileage in this approach. Jamie _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
