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From: Ingo Molnar <mingo@elte.hu>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	thuban@singularity.fr, dann frazier <dann.frazier@canonical.com>,
	Lisa Salimbas <lisa.salimbas@canonical.com>,
	linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
	Len Brown <lenb@kernel.org>
Subject: Re: [PATCH 2/2] PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB
Date: Fri, 6 Jan 2012 09:49:01 +0100	[thread overview]
Message-ID: <20120106084901.GD14188@elte.hu> (raw)
In-Reply-To: <CAErSpo6=yHFspY_L0rQa6iVD692nYyL=BR=3qBwc3UV8M16xbw@mail.gmail.com>


* Bjorn Helgaas <bhelgaas@google.com> wrote:

> On Thu, Jan 5, 2012 at 2:27 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:
> > Some Dell BIOSes have MCFG tables that don't report the entire
> > MMCONFIG area claimed by the chipset.  If we move PCI devices into
> > that claimed-but-unreported area, they don't work.
> >
> > This quirk reads the AMD MMCONFIG MSRs and adds PNP0C01 resources as
> > needed to cover the entire area.
> 
> PNP stuff usually goes through Len's ACPI tree, but this is 
> really x86-specific, and these two patches need to go 
> together, so I think it would make sense to put them both in 
> the x86 tree.  Len, do you object?

I'd really suggest the PCI tree for this - mmconfig is really 
PCI related.

Thanks,

	Ingo
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WARNING: multiple messages have this Message-ID (diff)
From: Ingo Molnar <mingo@elte.hu>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	thuban@singularity.fr, dann frazier <dann.frazier@canonical.com>,
	Lisa Salimbas <lisa.salimbas@canonical.com>,
	linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
	Len Brown <lenb@kernel.org>
Subject: Re: [PATCH 2/2] PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB
Date: Fri, 6 Jan 2012 09:49:01 +0100	[thread overview]
Message-ID: <20120106084901.GD14188@elte.hu> (raw)
In-Reply-To: <CAErSpo6=yHFspY_L0rQa6iVD692nYyL=BR=3qBwc3UV8M16xbw@mail.gmail.com>


* Bjorn Helgaas <bhelgaas@google.com> wrote:

> On Thu, Jan 5, 2012 at 2:27 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:
> > Some Dell BIOSes have MCFG tables that don't report the entire
> > MMCONFIG area claimed by the chipset.  If we move PCI devices into
> > that claimed-but-unreported area, they don't work.
> >
> > This quirk reads the AMD MMCONFIG MSRs and adds PNP0C01 resources as
> > needed to cover the entire area.
> 
> PNP stuff usually goes through Len's ACPI tree, but this is 
> really x86-specific, and these two patches need to go 
> together, so I think it would make sense to put them both in 
> the x86 tree.  Len, do you object?

I'd really suggest the PCI tree for this - mmconfig is really 
PCI related.

Thanks,

	Ingo

  reply	other threads:[~2012-01-06  8:51 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-05 21:27 [PATCH 1/2] x86, amd: factor out MMCONFIG discovery Bjorn Helgaas
2012-01-05 21:27 ` [PATCH 2/2] PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB Bjorn Helgaas
2012-01-05 21:30   ` Bjorn Helgaas
2012-01-05 21:30     ` Bjorn Helgaas
2012-01-06  8:49     ` Ingo Molnar [this message]
2012-01-06  8:49       ` Ingo Molnar
2012-01-06 17:18       ` Bjorn Helgaas
2012-01-06 20:05   ` Jesse Barnes
2012-01-12  6:52 ` [PATCH 1/2] x86, amd: factor out MMCONFIG discovery Eric Dumazet
2012-01-12 13:56   ` Bjorn Helgaas
2012-01-12 13:56     ` Bjorn Helgaas

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