* sgi/ip27 REPLICATE_KTEXT: Any user?
@ 2023-11-11 12:07 Jiaxun Yang
2023-11-13 20:23 ` Thomas Bogendoerfer
0 siblings, 1 reply; 2+ messages in thread
From: Jiaxun Yang @ 2023-11-11 12:07 UTC (permalink / raw)
To: linux-mips@vger.kernel.org; +Cc: kumba, Thomas Bogendoerfer
Hi all,
I'm trying to unify the implementation of NUMA on MIPS kernel.
Currently, we have 2 NUMA platform, SGI-IP27 and Loongson64.
I'm fairly familiar with Loongson64 and I'll take care of it, for
IP27 I have limited knowledge on it, I'm confident with dealing
general NUMA stuff, but REPLICATE_KTEXT seems a little bit cursed
for me.
I had a glance on it and I think this feature won't work on modern
kernel anyway. Nowadays, we have many fancy stuff like uasm and
static key which will modify kernel text at runtime.
So I just wonder if there is any remaining user on this feature?
Are we safe to drop it?
Thanks
- Jiaxun
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: sgi/ip27 REPLICATE_KTEXT: Any user?
2023-11-11 12:07 sgi/ip27 REPLICATE_KTEXT: Any user? Jiaxun Yang
@ 2023-11-13 20:23 ` Thomas Bogendoerfer
0 siblings, 0 replies; 2+ messages in thread
From: Thomas Bogendoerfer @ 2023-11-13 20:23 UTC (permalink / raw)
To: Jiaxun Yang; +Cc: linux-mips@vger.kernel.org, kumba
On Sat, Nov 11, 2023 at 12:07:25PM +0000, Jiaxun Yang wrote:
> I'm fairly familiar with Loongson64 and I'll take care of it, for
> IP27 I have limited knowledge on it, I'm confident with dealing
> general NUMA stuff, but REPLICATE_KTEXT seems a little bit cursed
> for me.
>
> I had a glance on it and I think this feature won't work on modern
> kernel anyway. Nowadays, we have many fancy stuff like uasm and
> static key which will modify kernel text at runtime.
>
> So I just wonder if there is any remaining user on this feature?
yes, it's broken at the moment, but usefull for IP27 (and IP35)
> Are we safe to drop it?
no, please leave alone.
Thomas.
--
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea. [ RFC1925, 2.3 ]
^ permalink raw reply [flat|nested] 2+ messages in thread
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