Subject: Re: powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N

From: Michael Ellerman <[email-masked]>
Date: Thu, 25 May 2017 23:22:32 +1000 (AEST)

On Wed, 2017-05-24 at 07:03:26 UTC, Michael Neuling wrote:
> Currently if you disable CONFIG_PPC_RADIX_MMU you'll crash on boot on
> a P9. This is because we still set MMU_FTR_TYPE_RADIX via
> ibm,pa-features and MMU_FTR_TYPE_RADIX is what's used for code patching
> in much of the asm code (ie. slb_miss_realmode)
> 
> This patch fixes the problem by stopping MMU_FTR_TYPE_RADIX from being
> set from ibm.pa-features.
> 
> We may eventually end up removing the CONFIG_PPC_RADIX_MMU option
> completely but until then this fixes the issue.
> 
> Signed-off-by: Michael Neuling <[email-masked]>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/d957fb4d173647640a2b83e7c7e56a

cheers