On Thu, Jul 22, 2010 at 03:24:26PM +0200, Michał Nazarewicz wrote:
> That's why command line is only intended as a way to overwrite the
> defaults which are provided by the platform. In a final product,
> configuration should be specified in platform code and not on
> command line.
Yeah, agreed though I'm not convinced we can't do it via userspace
(initrd would give us a chance to do stuff early) or just kernel
rebuilds.
> >It sounds like apart from the way you're passing the configuration in
> >you're doing roughly what I'd suggest. I'd expect that in a lot of
> >cases the map could be satisfied from the default region so there'd be
> >no need to explicitly set one up.
> Platform can specify something like:
> cma_defaults("reg=20M", "*/*=reg");
> which would make all the drivers share 20 MiB region by default. I'm also
> thinking if something like:
Yes, exactly - probably you can even have a default region backed by
normal vmalloc() RAM which would at least be able to take a stab at
working by default.
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