From: Bjorn Helgaas <helgaas@kernel.org>
To: Chen Yu <yu.c.chen@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
linux-arch <linux-arch@vger.kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Arnd Bergmann <arnd@arndb.de>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Len Brown <lenb@kernel.org>,
Mika Westerberg <mika.westerberg@linux.intel.com>
Subject: Re: [PATCH][RFC] PCI: Workaround to enable poweroff on Mac Pro 11
Date: Thu, 9 Jun 2016 12:04:19 -0500 [thread overview]
Message-ID: <20160609170419.GC1109@localhost> (raw)
In-Reply-To: <20160609165011.GA1109@localhost>
On Thu, Jun 09, 2016 at 11:50:11AM -0500, Bjorn Helgaas wrote:
> 5) 00:1c.0 claims to have a slot that supports hotplug. Is that
> actually true? Could you add a device below it? If not, maybe the
> problem is that the BIOS should have configured 00:1c.0 so it
> doesn't report a slot. If it didn't report a slot, we shouldn't
> assign resources to it, since there is no possibility of a device
> below it.
Of course, this would only be *part* of the problem, because a hot-added
device somewhere else could still be assigned the space at
[mem 0x7fc00000-0x7fdfffff].
This just smells like an unreported device in there somewhere.
prev parent reply other threads:[~2016-06-09 17:04 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-30 10:33 [PATCH][RFC] PCI: Workaround to enable poweroff on Mac Pro 11 Chen Yu
2016-05-30 21:33 ` Bjorn Helgaas
2016-05-30 22:11 ` Lukas Wunner
2016-05-31 3:29 ` Chen Yu
2016-05-31 3:24 ` Chen Yu
2016-05-31 7:00 ` Yinghai Lu
2016-05-31 7:18 ` Chen Yu
2016-05-31 13:16 ` Bjorn Helgaas
2016-06-08 4:31 ` Chen Yu
2016-06-08 12:47 ` Bjorn Helgaas
2016-06-09 16:50 ` Bjorn Helgaas
2016-06-09 17:04 ` Bjorn Helgaas [this message]
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