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From: Bjorn Helgaas <bjorn.helgaas-VXdhtT5mjnY@public.gmane.org>
To: Adam Belay <abelay-Et1tbQHTxzrQT0dZR+AlfA@public.gmane.org>
Cc: Len Brown <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	ACPI Developers
	<acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
	Shaohua Li <shaohua.li-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH] PNPACPI: don't complain about vendor-defined resources
Date: Sat, 12 Mar 2005 09:54:09 -0700	[thread overview]
Message-ID: <1110646449.24086.6.camel@eeyore> (raw)
In-Reply-To: <1110587127.12485.236.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>

On Fri, 2005-03-11 at 19:25 -0500, Adam Belay wrote:
> On Fri, 2005-03-11 at 17:23 -0700, Bjorn Helgaas wrote:
> > On Fri, 2005-03-11 at 19:07 -0500, Adam Belay wrote:
> > > Just out of curiosity, are we seeing many vendor-defined resources from
> > > ACPI?
> > 
> > HP boxes have some.  Our host-to-AGP bridge, IOMMU, etc have them to
> > tell you where the device's MMIO CSR space is.
> 
> Hmm, interesting.  I'm asking because I was considering how necessary it
> would be to pass this information down to actual drivers.

See hp_acpi_csr_space(), used by the sba_iommu and hp-agp drivers.

Which reminds me, I think the idea of using a UUID to label these
vendor-defined resources made it into ACPI 3.0 (section 6.4.3.2).
My plan was to move the infrastructure behind this (everything in
arch/ia64/kernel/acpi-ext.c except the hp_ccsr_descriptor and
hp_acpi_csr_space()) out of arch/ia64 and into drivers/acpi.
Something else for my to-do list, I guess ;-)



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      parent reply	other threads:[~2005-03-12 16:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-02-11 22:14 [PATCH] PNPACPI: don't complain about vendor-defined resources Bjorn Helgaas
2005-03-09  5:09 ` Len Brown
2005-03-12  0:07   ` Adam Belay
     [not found]     ` <1110586059.12485.225.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2005-03-12  0:23       ` Bjorn Helgaas
2005-03-12  0:25         ` Adam Belay
     [not found]           ` <1110587127.12485.236.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2005-03-12 16:54             ` Bjorn Helgaas [this message]

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