Date: Thu, 27 Oct 2005 03:57:49 +0800 From: Dinesh Nair <dinesh@alphaque.com> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-hackers@freebsd.org Subject: Re: correct use of bus_dmamap_sync Message-ID: <435FDFBD.3000506@alphaque.com> In-Reply-To: <200510261320.16175.jhb@freebsd.org> References: <435E3003.4050609@alphaque.com> <200510251610.53127.jhb@freebsd.org> <435F1E77.30007@alphaque.com> <200510261320.16175.jhb@freebsd.org>
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On 10/27/05 01:20 John Baldwin said the following: > On i386, yes. It won't on sparc64 when using an IOMMU for example. The whole > point of using bus_dma is to not use vtophys() since by doing that you are righto, so for platform portability, we'd still need to use it there though. > Yes, that is fugly. Just don't use the | versions for now I would guess. which would mean than backporting stuff from 5.x would need to be double checked for | usage. >>is this reasoning correct ? > Yes. excellent, thanx jhb. -- Regards, /\_/\ "All dogs go to heaven." dinesh@alphaque.com (0 0) http://www.alphaque.com/ +==========================----oOO--(_)--OOo----==========================+ | for a in past present future; do | | for b in clients employers associates relatives neighbours pets; do | | echo "The opinions here in no way reflect the opinions of my $a $b." | | done; done | +=========================================================================+
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