linux-kernel - Re: [PATCH] MIPS: SGI-IP28: disable use of ll/sc in kernel

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Date:   Thu, 8 Oct 2020 11:19:25 +0200
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] MIPS: SGI-IP28: disable use of ll/sc in kernel

On Wed, Oct 07, 2020 at 12:17:04PM +0200, Thomas Bogendoerfer wrote:
> SGI-IP28 systems only use broken R10k rev 2.5 CPUs, which could lock
> up, if ll/sc sequences are issued in certain order. Since those systems
> are all non-SMP, we can disable ll/sc usage in kernel.
> 
> Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
> ---
>  arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

applied to mips-next.

Thomas.

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