On Thu, 17 Feb 2005, Gerald Heinig wrote:
Hi hackers,
I've come across weird behaviour in bus_dmamem_alloc() whilst trying to
allocate small memory blocks (less than PAGE_SIZE) which have to be
aligned to PAGE_SIZE.
My segment size is 2048, my maximum number of segments is 1 (it MUST be contiguous), my max. total segment size is also 2048 and my alignment constraint is 4k (PAGE_SIZE). However, the DMA memory I'm getting from bus_dmamem_alloc() is NOT aligned to 4k.
You should e-mail Scott Long ([EMAIL PROTECTED]) about this directly. I believe that he has been working on related changes to busdma recently, but I'm not sure which branches have received his improvements.
Mike "Silby" Silbersack _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
