linux-kernel - Re: [RFT][PATCH] PCI / ACPI: Do not require MSI support for PCIe native features

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Date:	Mon, 14 Mar 2011 16:47:25 -0700
From:	Sarah Sharp <sarah.a.sharp@...ux.intel.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	linux-pci@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	ACPI Devel Mailing List <linux-acpi@...r.kernel.org>,
	Len Brown <lenb@...nel.org>,
	Matthew Garrett <mjg59@...f.ucam.org>
Subject: Re: [RFT][PATCH] PCI / ACPI: Do not require MSI support for PCIe
 native features

On Mon, Mar 14, 2011 at 09:37:41PM +0100, Rafael J. Wysocki wrote:
> On Monday, March 14, 2011, Sarah Sharp wrote:
> > On Mon, Mar 14, 2011 at 09:02:11PM +0100, Rafael J. Wysocki wrote:
> > > On Monday, March 14, 2011, Sarah Sharp wrote:
> > > > Hi Rafael,
> > > > 
> > > > I applied this patch, on top of this patch:
> > > > PCI/ACPI: Report ASPM support to BIOS if not disabled from command line
> > > > 
> > > > Unfortunately, the Express Card still doesn't show up.  The trace looks
> > > > slightly different, but the irq still gets disabled.  dmesg is attached.
> > > 
> > > Hmm.  It looks like, for some reason, the check against
> > > pcie_aspm_support_enabled() returns false on your system.  Do you have
> > > ASPM enabled in .config?
> > 
> > My .config is attached.  Looks like CONFIG_PCIEASPM=y.
> 
> Does it help if you replace "pcie_aspm_support_enabled()" with "true" in
> drivers/acpi/pci_root.c:acpi_pci_root_add() ?

No, it doesn't.  dmesg is attached.

Sarah Sharp

View attachment "dmesg.txt" of type "text/plain" (79667 bytes)