Date: Tue, 24 Jun 1997 12:07:37 +0930 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: julian@whistle.com (Julian Elischer) Cc: msmith@atrad.adelaide.edu.au, un_x@anchorage.net, joerg_wunsch@uriah.heep.sax.de, hackers@FreeBSD.ORG Subject: Re: direct access Message-ID: <199706240237.MAA21926@genesis.atrad.adelaide.edu.au> In-Reply-To: <33AEB13C.2781E494@whistle.com> from Julian Elischer at "Jun 23, 97 10:24:12 am"
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Julian Elischer stands accused of saying: > Michael Smith wrote: > > > > One of these mappings arranges pages so that kernel virtual addresses > > in the range 0xa0000-0xfffff refer to physical addresses > > 0xa0000-0xfffff, in order to make life slightly easier for ISA > > drivers. It doesn't apply to user processes, which have their own > > mappings. > > > > > > *GONG* > the kernel maps 0xa0000->0xfffff to 0xf00a000->0xf00fffff So sue me; I use KVTOPHYS()/PHYSTOKV() all the time anyway, as we all should 8) -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[
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