Xref: utzoo comp.unix.i386:34 comp.unix.wizards:17705
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!cica!ctrsol!emory!jdyx!tpf
From: tpf@jdyx.UUCP (Tom Friedel)
Newsgroups: comp.unix.i386,comp.unix.wizards
Subject: (386/ix) mapping video memory into address space
Message-ID: <1989Aug17.022833.29118@jdyx.UUCP>
Date: 17 Aug 89 02:28:33 GMT
Distribution: usa
Organization: JDyx Enterprises (Atlanta GA)
Lines: 19

Has anyone had any luck mapping more than 128K of video
memory into the 386/ix address space.  I imagine it can
be done, as (a) it is sort of documented, and (b) X11 does
it (but X11 links something into the kernel; what?)

If I set the size field of struct kd_memloc to anything
larger than 128K I (sometimes) get a memory fault when 
accessing that memory.  I have had little luck setting
video modes that require more than 128K, but think I have 
a pretty good idea of what I am doing as I can get quite
a few smaller VGA modes.

Thanks, 
Tom

-- 
Tom Friedel             Public Access Unix BBS
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