Messages in this thread | | | Date | Mon, 24 Jan 2005 20:22:23 +0000 | From | Matthew Wilcox <> | Subject | Re: Fwd: Patch to control VGA bus routing and active VGA device. |
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On Mon, Jan 24, 2005 at 02:17:15PM -0500, Jon Smirl wrote: > On Mon, 24 Jan 2005 17:51:31 +0000, Matthew Wilcox <matthew@wil.cx> wrote: > > Yes -- *very* platform specific. Some are even configurable as to how > > much they support. See http://ftp.parisc-linux.org/docs/chips/zx1-mio.pdf > > Is this a justification for doing device drivers for bridge chips? It > has been mentioned before but no one has done it.
I don't think this is ... the bridges mentioned are host->pci bridges.
> Any ideas why the code I sent won't work on the x86? I can shut > routing off but I can't get it back on again. > > The motivation behind the code is to get X to quit doing this from user space.
I suppose we could log all access X does and compare to what your code ends up doing ...
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