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Date:      Tue, 2 Nov 2010 15:41:48 -0400
From:      John Baldwin <jhb@freebsd.org>
To:        "Jung-uk Kim" <jkim@freebsd.org>
Cc:        "Moore, Robert" <robert.moore@intel.com>, freebsd-acpi@freebsd.org, Lin Ming <ming.m.lin@intel.com>, Andriy Gapon <avg@freebsd.org>
Subject:   Re: MacBookPro 5,1
Message-ID:  <201011021541.48741.jhb@freebsd.org>
In-Reply-To: <201011021529.05977.jkim@FreeBSD.org>
References:  <201010121209.06397.hselasky@c2i.net> <4CD02E6D.1070106@freebsd.org> <201011021529.05977.jkim@FreeBSD.org>

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On Tuesday, November 02, 2010 3:29:01 pm Jung-uk Kim wrote:
> On Tuesday 02 November 2010 11:29 am, Andriy Gapon wrote:
> > on 29/10/2010 08:51 Andriy Gapon said the following:
> > > I guess that a general problem here is that it is incorrect to
> > > merely use memcpy/bcopy to create a copy of a resource if the
> > > resource has ACPI_RESOURCE_SOURCE field in it.
> >
> > Hans,
> >
> > could you please test the following patch?
> >
> > diff --git a/sys/dev/acpica/acpi_pci_link.c
> > b/sys/dev/acpica/acpi_pci_link.c index dcf101d..e842635 100644
> > --- a/sys/dev/acpica/acpi_pci_link.c
> > +++ b/sys/dev/acpica/acpi_pci_link.c
> > @@ -767,6 +767,8 @@ acpi_pci_link_srs_from_crs
> >  				    link->l_irq;
> >  			else
> >  				resptr->Data.ExtendedIrq.Interrupts[0] = 0;
> > +			memset(&resptr->Data.ExtendedIrq.ResourceSource, 0,
> > +			    sizeof(ACPI_RESOURCE_SOURCE));
> >  			link++;
> >  			i++;
> >  			break;
> 
> Hmm...  Very interesting.  Can you please try this, too?

Linux doesn't set the resource source bits up at all when doing _SRS, so I'd 
rather just do that.  I think what I'd prefer is that we not use the 
prs_template, perhaps just save the type of the resource and build a new
resource object from scratch where the resource is zero'd, the appropriate 
bits are set and then that resource is appended to the buffer being built.

-- 
John Baldwin



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