From: puck.chen@hisilicon•com (Chen Feng)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 1/2] arm64: mem-model: add flatmem model for arm64
Date: Thu, 7 Apr 2016 15:38:33 +0800 [thread overview]
Message-ID: <57060E79.8030801@hisilicon.com> (raw)
In-Reply-To: <1459844572-53069-1-git-send-email-puck.chen@hisilicon.com>
add Mel Gorman
On 2016/4/5 16:22, Chen Feng wrote:
> We can reduce the memory allocated at mem-map
> by flatmem.
>
> currently, the default memory-model in arm64 is
> sparse memory. The mem-map array is not freed in
> this scene. If the physical address is too long,
> it will reserved too much memory for the mem-map
> array.
>
> Signed-off-by: Chen Feng <puck.chen@hisilicon•com>
> Signed-off-by: Fu Jun <oliver.fu@hisilicon•com>
> ---
> arch/arm64/Kconfig | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 4f43622..c18930d 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -559,6 +559,9 @@ config ARCH_SPARSEMEM_ENABLE
> def_bool y
> select SPARSEMEM_VMEMMAP_ENABLE
>
> +config ARCH_FLATMEM_ENABLE
> + def_bool y
> +
> config ARCH_SPARSEMEM_DEFAULT
> def_bool ARCH_SPARSEMEM_ENABLE
>
>
next prev parent reply other threads:[~2016-04-07 7:38 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-05 8:22 [PATCH 1/2] arm64: mem-model: add flatmem model for arm64 Chen Feng
2016-04-05 8:22 ` [PATCH 2/2] arm64: mm: make pfn always valid with flat memory Chen Feng
2016-04-07 7:39 ` Chen Feng
2016-04-11 11:08 ` Xishi Qiu
2016-04-12 15:00 ` Catalin Marinas
2016-04-07 7:38 ` Chen Feng [this message]
2016-04-07 14:21 ` [PATCH 1/2] arm64: mem-model: add flatmem model for arm64 Will Deacon
2016-04-11 2:49 ` Chen Feng
2016-04-11 7:35 ` Ard Biesheuvel
2016-04-11 7:55 ` Chen Feng
2016-04-11 8:00 ` Ard Biesheuvel
2016-04-11 9:59 ` Chen Feng
2016-04-11 10:31 ` Ard Biesheuvel
2016-04-11 10:40 ` Will Deacon
2016-04-11 10:57 ` Chen Feng
2016-04-11 18:11 ` Laura Abbott
2016-04-12 14:44 ` Catalin Marinas
2016-04-12 14:59 ` Catalin Marinas
2016-04-20 3:18 ` Chen Feng
2016-04-20 9:32 ` Catalin Marinas
2016-04-11 10:48 ` Chen Feng
2016-04-11 11:02 ` Ard Biesheuvel
2016-04-12 14:03 ` Jungseok Lee
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