From owner-freebsd-hackers@FreeBSD.ORG  Fri Dec 15 09:37:25 2006
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From: Marc =?iso-8859-1?q?L=F6rner?= <marc.loerner@hob.de>
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Cc: Suleiman Souhlal <ssouhlal@freebsd.org>,
	Hans Petter Selasky <hselasky@c2i.net>
Subject: Re: Allocate aligned memory
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On Friday 15 December 2006 10:19, Hans Petter Selasky wrote:
...
> > My suggestion is to make the your high limit (currently 1 << 22) MUCH
> > higher, if possible. Also, getting rid of the 1MB boundary might help.
>
> PS: contigmalloc is on the way out. Please use "man bus_dma" instead. For
> an example see:
>
> http://www.turbocat.net/~hselasky/isdn4bsd/sources/src/sys/dev/usb/usb_subr
>.c
>
> And the function "usbd_mem_alloc_sub()".

Thanks for the help,
I finally got contigmalloc working!

Next step is converting to bus_dmamem_alloc, but AFAICS this function still 
uses contigmalloc. So what are the main improvements on using these new 
functions?

Kind regards,
Marc