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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20151005164924.GB5557@MBP.local \
--to=catalin.marinas@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.