[PATCHv3 10/11] arm64: Add 16K page size support

Jeremy Linton jeremy.linton at arm.com
Wed Oct 14 08:40:56 PDT 2015


On 10/14/2015 06:20 AM, Suzuki K. Poulose wrote:
> diff --git a/arch/arm64/include/asm/page.h b/arch/arm64/include/asm/page.h
> index da32354..736ed4c 100644
> --- a/arch/arm64/include/asm/page.h
> +++ b/arch/arm64/include/asm/page.h
> @@ -24,6 +24,9 @@
>   #ifdef CONFIG_ARM64_64K_PAGES
>   #define PAGE_SHIFT		16
>   #define CONT_SHIFT		5
> +#elif defined(CONFIG_ARM64_16K_PAGES)
> +#define PAGE_SHIFT		14
> +#define CONT_SHIFT		9
>   #else
>   #define PAGE_SHIFT		12
>   #define CONT_SHIFT		4

Suzuki,

Is CONT_SHIFT correct? I thought it should be 7? The ARM-ARM says that a 
contiguous 3rd level lookup is 128 entries.

Thanks,
	Jeremy




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