Re: [PATCH 3.16 032/134] MIPS: Loongson-3: Select MIPS_L1_CACHE_SHIFT_6

From: Huacai Chen
Date: Sun Aug 20 2017 - 22:25:57 EST


3.16 doesn't need this, because 3.16 doesn't support Loongson-3 R2/R3.

Huacai

On Fri, Aug 18, 2017 at 9:13 PM, Ben Hutchings <ben@xxxxxxxxxxxxxxx> wrote:
> 3.16.47-rc1 review patch. If anyone has any objections, please let me know.
>
> ------------------
>
> From: Huacai Chen <chenhc@xxxxxxxxxx>
>
> commit 17c99d9421695a0e0de18bf1e7091d859e20ec1d upstream.
>
> Some newer Loongson-3 have 64 bytes cache lines, so select
> MIPS_L1_CACHE_SHIFT_6.
>
> Signed-off-by: Huacai Chen <chenhc@xxxxxxxxxx>
> Cc: John Crispin <john@xxxxxxxxxxx>
> Cc: Steven J . Hill <Steven.Hill@xxxxxxxxxxxxxxxxxx>
> Cc: Fuxin Zhang <zhangfx@xxxxxxxxxx>
> Cc: Zhangjin Wu <wuzhangjin@xxxxxxxxx>
> Cc: linux-mips@xxxxxxxxxxxxxx
> Patchwork: https://patchwork.linux-mips.org/patch/15755/
> Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
> [bwh: Backported to 3.16: adjust context]
> Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
> ---
> arch/mips/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -1193,6 +1193,7 @@ config CPU_LOONGSON3
> select CPU_SUPPORTS_HUGEPAGES
> select WEAK_ORDERING
> select WEAK_REORDERING_BEYOND_LLSC
> + select MIPS_L1_CACHE_SHIFT_6
> help
> The Loongson 3 processor implements the MIPS64R2 instruction
> set with many extensions.
>
>