From: Michael Ellerman <mpe@ellerman•id.au>
To: Benjamin Herrenschmidt <benh@kernel•crashing.org>,
linuxppc-dev@ozlabs•org
Subject: Re: [PATCH] powerpc: sparsemem should be the default on powernv
Date: Mon, 06 Mar 2017 20:41:59 +1100 [thread overview]
Message-ID: <87fuiqpwrc.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <1488754796.2870.112.camel@kernel.crashing.org>
Benjamin Herrenschmidt <benh@kernel•crashing.org> writes:
> This is especially true of POWER9 where memory between chips is
> discontiguous.
>
> Signed-off-by: Benjamin Herrenschmidt <benh@kernel•crashing.org>
> ---
>
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 4940917..c4b4c55 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -580,7 +580,7 @@ config ARCH_SPARSEMEM_ENABLE
>
> config ARCH_SPARSEMEM_DEFAULT
> def_bool y
> - depends on (SMP && PPC_PSERIES) || PPC_PS3
> + depends on (SMP && PPC_PSERIES) || PPC_PS3 || PPC_POWERNV
Why don't we just make it default y for BOOK3S_64?
It's just the default after all, it can still be changed.
cheers
next prev parent reply other threads:[~2017-03-06 9:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-05 22:59 [PATCH] powerpc: sparsemem should be the default on powernv Benjamin Herrenschmidt
2017-03-06 9:41 ` Michael Ellerman [this message]
2017-03-06 21:41 ` Benjamin Herrenschmidt
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