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

From Jeremy Linton <jeremy.linton@arm.com>
Newsgroups linux.kernel
Subject Re: [PATCHv3 10/11] arm64: Add 16K page size support
Date 2015-10-14 17:50 +0200
Message-ID <qjwtr-2XK-11@gated-at.bofh.it> (permalink)
References <qjspQ-5qz-3@gated-at.bofh.it> <qjspS-5qz-59@gated-at.bofh.it>
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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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Thread

[PATCHv3 00/11] arm64: 16K translation granule support "Suzuki K. Poulose" <suzuki.poulose@arm.com> - 2015-10-14 13:30 +0200
  [PATCHv3 07/11] arm64: Kconfig: Fix help text about AArch32 support with 64K pages "Suzuki K. Poulose" <suzuki.poulose@arm.com> - 2015-10-14 13:30 +0200
    Re: [PATCHv3 07/11] arm64: Kconfig: Fix help text about AArch32  support with 64K pages Mark Rutland <mark.rutland@arm.com> - 2015-10-14 19:20 +0200
  [PATCHv3 10/11] arm64: Add 16K page size support "Suzuki K. Poulose" <suzuki.poulose@arm.com> - 2015-10-14 13:30 +0200
    Re: [PATCHv3 10/11] arm64: Add 16K page size support Jeremy Linton <jeremy.linton@arm.com> - 2015-10-14 17:50 +0200
      Re: [PATCHv3 10/11] arm64: Add 16K page size support "Suzuki K. Poulose" <Suzuki.Poulose@arm.com> - 2015-10-14 18:00 +0200
    Re: [PATCHv3 10/11] arm64: Add 16K page size support Mark Rutland <mark.rutland@arm.com> - 2015-10-15 16:10 +0200
      Re: [PATCHv3 10/11] arm64: Add 16K page size support "Suzuki K. Poulose" <Suzuki.Poulose@arm.com> - 2015-10-15 16:50 +0200
        Re: [PATCHv3 10/11] arm64: Add 16K page size support Steve Capper <steve.capper@linaro.org> - 2015-10-15 17:40 +0200
          Re: [PATCHv3 10/11] arm64: Add 16K page size support "Suzuki K. Poulose" <Suzuki.Poulose@arm.com> - 2015-10-15 17:50 +0200
  [PATCHv3 05/11] arm64: Handle 4 level page table for swapper "Suzuki K. Poulose" <suzuki.poulose@arm.com> - 2015-10-14 13:30 +0200
    Re: [PATCHv3 05/11] arm64: Handle 4 level page table for swapper Mark Rutland <mark.rutland@arm.com> - 2015-10-14 19:20 +0200

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