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Date: Wed, 24 May 2017 08:57:12 -0600
From: Alex Williamson <alex.williamson@redhat.com>
To: "Cheng, Collins" <Collins.Cheng@amd.com>
Cc: Alexander Duyck <alexander.duyck@gmail.com>,
        Bjorn Helgaas <bhelgaas@google.com>,
        "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "Deucher, Alexander" <Alexander.Deucher@amd.com>,
        "Zytaruk, Kelly" <Kelly.Zytaruk@amd.com>,
        Yinghai Lu <yinghai@kernel.org>
Subject: Re: [PATCH] PCI: Make SR-IOV capable GPU working on the SR-IOV
 incapable platform
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On Wed, 24 May 2017 08:57:53 +0000
"Cheng, Collins" <Collins.Cheng@amd.com> wrote:

> Hi Alex,
> 
> How do you know "particular this system offers no 64-bit MMIO", from dmesg log?

>>From this:

> [    0.891319] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7 window]
> [    0.891321] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff window]
> [    0.891322] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff window]
> [    0.891323] pci_bus 0000:00: root bus resource [mem 0x88800000-0xdfffffff window]
> [    0.891324] pci_bus 0000:00: root bus resource [mem 0xfd000000-0xfe7fffff window]
> [    0.891325] pci_bus 0000:00: root bus resource [bus 00-fe]

There are only 32-bit ranges listed.  Thanks,

Alex