From: Grant Grundler <grundler@parisc-linux.org>
To: Kyle McMartin <kyle@mcmartin.ca>
Cc: parisc-linux@lists.parisc-linux.org,
Bjorn Helgaas <bjorn.helgaas@hp.com>
Subject: Re: [parisc-linux] Re: Trident video card caused Kernel Panic on HP Visualize 785/B2000 with rebuilt 2.6.11-rc6-pa1 kernel
Date: Thu, 23 Jun 2005 13:09:14 -0600 [thread overview]
Message-ID: <20050623190914.GA28240@colo.lackof.org> (raw)
In-Reply-To: <20050623185925.GB28881@roadwarrior.mcmartin.ca>
On Thu, Jun 23, 2005 at 02:59:25PM -0400, Kyle McMartin wrote:
> > ie a "directed range" could be programmed to redirect accesses from
> > MMIO space to a particular Elroy. Requires programming a directed
> > range in Astro and a matched "Extra LMMIO" range in Elroy.
> > I've never messed with this and always depended on firmware
> > to deal with range registers.
> >
>
> I've been looking at the Astro and Elroy ERS trying to understand
> this. Does this mean that even if the "VGA Enable" logic is broken,
> we could still force VGA accesses to be routed to a specific PCI
> device, or are we out of luck?
We can force any MMIO accesses to any rope with "Directed Ranges" on Astro.
We can NOT force IO Port accesses to anything.
> If it's feasible, I'm willing to take some time to look into this.
I'm not sure it's "feasible" unless we can get around IO Port space
routing issues.
grant
>
> Cheers,
> --
> Kyle McMartin
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next prev parent reply other threads:[~2005-06-23 19:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5.1.1.6.1.20050615221250.02a429c0@pop.singnet.com.sg>
2005-06-15 19:06 ` [parisc-linux] Re: Trident video card caused Kernel Panic on HP Visualize 785/B2000 with rebuilt 2.6.11-rc6-pa1 kernel Grant Grundler
2005-06-20 20:45 ` Bjorn Helgaas
2005-06-21 2:06 ` Grant Grundler
2005-06-23 18:59 ` Kyle McMartin
2005-06-23 19:09 ` Grant Grundler [this message]
2005-06-23 19:24 ` Bjorn Helgaas
2005-06-23 20:18 ` Grant Grundler
2005-06-23 20:22 ` Bjorn Helgaas
2005-06-23 20:30 ` Kyle McMartin
2005-06-23 20:46 ` Bjorn Helgaas
[not found] ` <5.1.1.6.1.20050701204720.02abaec0@pop.singnet.com.sg>
2005-07-02 7:44 ` Grant Grundler
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