Re: [PATCH 0/2] powerpc: Remove support for ppc405/440 Xilinx platforms

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Christophe Leroy <christophe.leroy@xxxxxxxxxx> writes:
> Le 21/05/2020 à 09:02, Michael Ellerman a écrit :
>> Arnd Bergmann <arnd@xxxxxxxx> writes:
>>> +On Wed, Apr 8, 2020 at 2:04 PM Michael Ellerman <mpe@xxxxxxxxxxxxxx> wrote:
>>>> Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> writes:
>>>>> On Fri, 2020-04-03 at 15:59 +1100, Michael Ellerman wrote:
>>>>>> Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> writes:
>>>>> IBM still put 40x cores inside POWER chips no ?
>>>>
>>>> Oh yeah that's true. I guess most folks don't know that, or that they
>>>> run RHEL on them.
>>>
>>> Is there a reason for not having those dts files in mainline then?
>>> If nothing else, it would document what machines are still being
>>> used with future kernels.
>> 
>> Sorry that part was a joke :D  Those chips don't run Linux.
>> 
>
> Nice to know :)
>
> What's the plan then, do we still want to keep 40x in the kernel ?

I guess we keep it for now.

Perhaps we mark it BROKEN for a few releases and see if anyone
complains?

> If yes, is it ok to drop the oldies anyway as done in my series 
> https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=172630 ?

Yeah let's do it. I would love to get rid of that horrible
PPC405_ERR77() sprinkled all through our atomics.

> (Note that this series will conflict with my series on hugepages on 8xx 
> due to the PTE_ATOMIC_UPDATES stuff. I can rebase the 40x modernisation 
> series on top of the 8xx hugepages series if it is worth it)

Yeah if you can rebase that would be great.

cheers
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