Re: [PATCH] MIPS: add support for buggy MT7621S core detection

From: Maciej W. Rozycki
Date: Wed Apr 07 2021 - 09:49:54 EST


On Mon, 5 Apr 2021, Ilya Lipnitskiy wrote:

> Thanks for the comments. Including asm/bugs.h in asm/mips-cps.h led to
> some circular dependencies when I tried it, but I will try again based
> on your feedback - indeed it would be much cleaner to have this logic
> in mips_cps_numcores. The only wrinkle is that mips_cps_numcores may
> return a different value on MT7621 after the cores have started due to
> CPULAUNCH flags changing, but nobody calls mips_cps_numcores later
> anyway, so it's a moot point today. I will clean up the change and
> resend.

Hmm, I don't know this system, but by the look of the code it queries
launch[2], which I gather refers to the VPE #0 of an inexistent core #1,
so why would the structure change given that there is no corresponding
silicon?

Maciej