Re: mpt sets 64bit consistent mask yet requires mapping in same 4 GB chunk?!?

From: Jesse Barnes <jbarnes_at_sgi.com>
Date: 2004-02-14 08:30:43
On Fri, Feb 13, 2004 at 04:20:35PM -0500, Moore, Eric Dean wrote:
> I added pci_set_consistent_dma_mask() per request from
> Jeremy Higdon<jeremy@sgi.com> back on 12/03/03. He
> was having problems on a Altix (IA64) system. See
> attached email.  What is your recommendation? I have a mpt 
> patch in the queue which doesn't address this.
> 
> On Friday, February 13, 2004 9:12 AM, Alex Williamson wrote:
> > These are two perfectly valid consistent mappings as far as the
> > platform code is concerned.  I think mpt really needs to either set
> > a 32bit consistent map of do a single allocation when it requires
> > this type of thing.  Thanks,

I think Alex's second suggestion would be the best--do a single
allocation rather than falling back to a 32 bit consistent mask.

Jesse
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Received on Fri Feb 13 16:36:59 2004

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