Date: Wed, 11 Jan 2012 10:10:42 -0700 From: Ian Lepore <freebsd@damnhippie.dyndns.org> To: Scott Long <scottl@samsco.org> Cc: freebsd-current@freebsd.org Subject: Re: memory barriers in bus_dmamap_sync() ? Message-ID: <1326301842.2419.80.camel@revolution.hippie.lan> In-Reply-To: <4E8FCE8E-DDCB-4B38-9BFD-2A67BF03D50F@samsco.org> References: <20120110213719.GA92799@onelab2.iet.unipi.it> <CAJ-VmomdQ5ZWBf_h1xJhppO8WsinvK7RJiDSgDrYKpo%2BJ8eGYQ@mail.gmail.com> <20120110224100.GB93082@onelab2.iet.unipi.it> <201201111005.28610.jhb@freebsd.org> <20120111162944.GB2266@onelab2.iet.unipi.it> <4E8FCE8E-DDCB-4B38-9BFD-2A67BF03D50F@samsco.org>
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On Wed, 2012-01-11 at 09:59 -0700, Scott Long wrote: > > Where barriers _are_ needed is in interrupt handlers, and I can > discuss that if you're interested. > > Scott > I'd be interested in hearing about that (and in general I'm loving the details coming out in your explanations -- thanks!). -- Ian
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