Re: [PATCH] PCI: ACPI: Fix ThunderX PEM initialization

From: Jon Masters
Date: Wed Mar 22 2017 - 12:25:54 EST


On 03/22/2017 10:48 AM, Bjorn Helgaas wrote:
> On Wed, Mar 22, 2017 at 10:28:27AM -0400, Jon Masters wrote:
>> On 03/21/2017 10:56 AM, David Daney wrote:
>
>>> Yes. After all this back and forth, Cavium has decided to deploy
>>> firmware with "CAVxxx" as _HID.
>>
>> Great. How about a stable backport for Greg K-H? I want to make sure
>> that everyone running "upstream" has a chance of booting.
>
> The first patch, fee4d813850c ("PCI: Use Cavium assigned hardware ID for
> ThunderX host controller"), has a stable tag already.

Thanks - I saw that after I mailed.

> The second, 1dc94a38af89 ("PCI: Add legacy firmware support for Cavium
> ThunderX host controller"), does not, but I can easily add it if needed.

I think that would be ideal. There is firmware out in the wild that
has neither identifier in it (for example, a bunch of folks in the
office bought platforms recently that don't boot upstream kernels).
My guys are used to just taking an upstream kernel and using that,
for development, and I have no intention of having the broader RH
org do any different from what they would do with an x86 box ;)

Jon.