Re: [PATCH] MIPS: Limit MIPS_MT_SMP support by ISA reversion

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> 2023年4月8日 13:17,Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> 写道:
> 
> On Sat, Apr 08, 2023 at 11:10:32AM +0100, Jiaxun Yang wrote:
>> 
>> 
>>> 2023年4月8日 01:30,Guenter Roeck <linux@xxxxxxxxxxxx> 写道:
>>> 
>>> On 4/7/23 15:35, Jiaxun Yang wrote:
>>>> MIPS MT ASE is only available on ISA between Release 1 and Release 5.
>>>> Add ISA level dependency to Kconfig to fix build.
>>>> Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx>
>>>> Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx>
>>> 
>>> With this patch in place, I still get the second build failure.
>> 
>> + Thomas
>> 
>> Seems like PTE bits are overflowing again.
> 
> I'm going to revert de34007751aaba992373f2d659001a846aeb8811, which just
> solves all new build problems in one go. Then we can try to come up with
> a usable solution.

Setting default CPU back to MIPS32 (R2?) [1] should also solve all those build problems.

However those problems are always here, just R4X00 didn’t get much care before.

[1]: https://lore.kernel.org/linux-mips/20230408115936.6631-1-jiaxun.yang@xxxxxxxxxxx/

Thanks
- Jiaxun

> 
> Thomas.
> 
> -- 
> Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
> good idea.                                                [ RFC1925, 2.3 ]





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