PERFORCE change 152649 for review
Alexander Motin
mav at FreeBSD.org
Sat Nov 8 03:29:35 PST 2008
Hans Petter Selasky wrote:
> http://perforce.freebsd.org/chv.cgi?CH=152649
>
> Change 152649 by hselasky at hselasky_laptop001 on 2008/11/08 09:09:50
>
>
> Fix a serious BUSDMA bug: The initial virtual page offset is
> not retained on the bounce pages, which is what the EHCI and
> the OHCI expects.
I'm sorry, but are you sure with this? If bounce page will have the same
page offset as original data, then how bus_dma_tag_create()'s alignment
parameter expected to work? What if data are misaligned, but hardware
require alignment?
--
Alexander Motin
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