From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Michael Neuling <mikey@neuling.org>,
linuxppc-dev@lists.ozlabs.org, anton@samba.org,
aneesh.kumar@linux.vnet.ibm.com, mikey@neuling.org,
Greg Johnson <gwj@google.com>
Subject: Re: powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N
Date: Thu, 25 May 2017 23:22:32 +1000 (AEST) [thread overview]
Message-ID: <3wYVLJ5mgwz9s8P@ozlabs.org> (raw)
In-Reply-To: <20170524070326.13531-1-mikey@neuling.org>
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 <mikey@neuling.org>
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/d957fb4d173647640a2b83e7c7e56a
cheers
prev parent reply other threads:[~2017-05-25 13:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-24 7:03 [PATCH] powerpc: Fix booting P9 hash with CONFIG_PPC_RADIX_MMU=N Michael Neuling
2017-05-24 8:56 ` Aneesh Kumar K.V
2017-05-25 0:13 ` Michael Neuling
2017-05-25 2:53 ` Aneesh Kumar K.V
2017-05-25 7:12 ` Michael Neuling
2017-05-25 6:16 ` Michael Ellerman
2017-05-25 6:22 ` Aneesh Kumar K.V
2017-05-25 13:22 ` Michael Ellerman [this message]
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