Hi, On Sat, Feb 12, 2011 at 2:49 AM, Meador Inge <meador_i...@mentor.com> wrote: > > 1. Hardware specific bits somewhere under '.../arch/*'. Drivers > for the MPIC message registers on Power and OMAP4 mailboxes, for > example.
Yes; this can help. > 2. A higher level driver under '.../drivers/mailbox/*'. That the > pieces in (1) would register with. This piece would expose the > main kernel API. A lot of mailboxes are too platform specific with regards to the communication with the main CPU and probably it depends on the mailbox too; you can find polling and interrupt supported mailbox support at times on the same platform. APIs should probably be generic enough to be able to operate in any context. > Now I have the following questions: > > 1. Do others see value in this? At least I would like this; I wanted to generalize such mailbox IPCs right from the day when I was working on one, but coudnt really work on that. > 2. Does something like this already exist? Not generic as you say; but apart from the OMAP platforms, you could refer to arch/arm/mach-ux500/prcmu for a mailbox based IPC on the U8500 platform. > 3. Is someone else already working on this? Not sure of that too :), but I am CCing Linus W, the maintainer of U8500 if he thinks it is a good idea to come up with a mailbox IPC framework Cheers! -- --------- The views expressed in this email are personal and do not necessarily echo my employers. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
