From: catalin.marinas@arm•com (Catalin Marinas)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 7/7] Document the use of the arm64 contpte/nonconpte flags.
Date: Mon, 5 Oct 2015 17:49:24 +0100 [thread overview]
Message-ID: <20151005164924.GB5557@MBP.local> (raw)
In-Reply-To: <1443818865-19846-8-git-send-email-jeremy.linton@arm.com>
On Fri, Oct 02, 2015 at 03:47:45PM -0500, Jeremy Linton wrote:
> These flags allow the user to enable/disable the contiguous PTE
> detection and marking on the kernel command line for
> debugging purposes.
>
> Signed-off-by: Jeremy Linton <jeremy.linton@arm•com>
> ---
> Documentation/kernel-parameters.txt | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
> index 22a4b68..2766290 100644
> --- a/Documentation/kernel-parameters.txt
> +++ b/Documentation/kernel-parameters.txt
> @@ -744,6 +744,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
> seconds. Defaults to 10*60 = 10mins. A value of 0
> disables the blank timer.
>
> + contpte [ARM64] Enable contiguous PTE marking for the kernel
> + linear range. This may be disabled with nocontpte.
> + Default: Enabled
I recall you asked the question but I didn't have the time to reply. I
don't think we need a command line option for this. In the "unlikely"
event that something is broken in hardware (or software) and we want to
disable the contiguous bit, I would rather have a Kconfig option.
--
Catalin
next prev parent reply other threads:[~2015-10-05 16:49 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-02 20:47 [PATCHv2 0/7] arm64: Use contiguous PTE bit for the kernel linear mapping Jeremy Linton
2015-10-02 20:47 ` [PATCH 1/7] arm64: Add contiguous page flag shifts and constants Jeremy Linton
2015-10-02 20:47 ` [PATCH 2/7] arm64: PTE/PMD contiguous bit definition Jeremy Linton
2015-10-06 11:10 ` Catalin Marinas
2015-10-02 20:47 ` [PATCH 3/7] arm64: Macros to check/set/unset the contiguous bit Jeremy Linton
2015-10-02 20:47 ` [PATCH 4/7] arm64: Default kernel pages should be contiguous Jeremy Linton
2015-10-02 20:47 ` [PATCH 5/7] arm64: Make the kernel page dump utility aware of the CONT bit Jeremy Linton
2015-10-02 20:47 ` [PATCH 6/7] arm64: Mark kernel page ranges contiguous Jeremy Linton
2015-10-06 11:15 ` Catalin Marinas
2015-10-02 20:47 ` [PATCH 7/7] Document the use of the arm64 contpte/nonconpte flags Jeremy Linton
2015-10-05 16:49 ` Catalin Marinas [this message]
2015-10-05 18:29 ` Jeremy Linton
2015-10-06 9:42 ` Catalin Marinas
2015-10-05 17:03 ` [PATCHv2 0/7] arm64: Use contiguous PTE bit for the kernel linear mapping Catalin Marinas
2015-10-05 18:22 ` Jeremy Linton
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