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From:   Michael Ellerman <mpe@ellerman.id.au>
To:     Christophe Leroy <christophe.leroy@c-s.fr>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>
Cc:     linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH] powerpc/32: Add missing context synchronisation with CONFIG_VMAP_STACK
In-Reply-To: <872477f7c7552d3bb7baf0b302398fcd42c5fcfd.1579885334.git.christophe.leroy@c-s.fr>
References: <872477f7c7552d3bb7baf0b302398fcd42c5fcfd.1579885334.git.christophe.leroy@c-s.fr>
Date:   Sat, 25 Jan 2020 21:30:14 +1100
Message-ID: <87wo9fhlqh.fsf@mpe.ellerman.id.au>
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Christophe Leroy <christophe.leroy@c-s.fr> writes:
> After reactivation of data translation by modifying MSR[DR], a isync
> is required to ensure the translation is effective.
>
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
> ---
> Rebased on powerpc/merge-test
>
> @mpe: If not too late:
> - change to head_32.h should be squashed into "powerpc/32: prepare for CONFIG_VMAP_STACK"
> - change to head_32.S should be squashed into "powerpc/32s: Enable CONFIG_VMAP_STACK"

Done. Thanks.

cheers