From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Hongfei Cheng <hongfei@mperpetuo.com>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] Ipipe-core patched kernel fails to start when certain platform drivers are enabled
Date: Thu, 30 Apr 2015 20:31:47 +0200 [thread overview]
Message-ID: <20150430183147.GZ1993@hermes.click-hack.org> (raw)
In-Reply-To: <CAKC9m6fXKqNhwy3sZ9zqzoAu=Xb7TUSxceogpE7xxB9-J=11wQ@mail.gmail.com>
On Thu, Apr 30, 2015 at 08:53:10AM -0700, Hongfei Cheng wrote:
> 4). High resolution counter is not yet supported as we're exploring
> different way(s) to implement TSC.
Note the implications here: if you say "all armv8 will use
architected timer", we can get away with a unique implementation. If
you want to use another timer, then we will have to implement kernel
helpers with a constant kernel/user ABI, so probably in the vdso.
All this for an improved accuracy that may well not be worth the
trouble.
--
Gilles.
next prev parent reply other threads:[~2015-04-30 18:31 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-30 15:53 [Xenomai] Ipipe-core patched kernel fails to start when certain platform drivers are enabled Hongfei Cheng
2015-04-30 16:17 ` Gilles Chanteperdrix
2015-04-30 18:12 ` Hongfei Cheng
2015-04-30 18:14 ` Gilles Chanteperdrix
2015-04-30 18:17 ` Hongfei Cheng
2015-04-30 18:31 ` Gilles Chanteperdrix [this message]
2015-04-30 20:04 ` Hongfei Cheng
2015-04-30 20:14 ` Gilles Chanteperdrix
2015-04-30 21:21 ` Lennart Sorensen
2015-04-30 21:27 ` Gilles Chanteperdrix
2015-05-01 13:45 ` Lennart Sorensen
2015-05-01 13:56 ` Gilles Chanteperdrix
2015-05-01 14:36 ` Lennart Sorensen
2015-05-01 14:44 ` Gilles Chanteperdrix
2015-05-01 15:33 ` Lennart Sorensen
2015-05-13 17:01 ` Lennart Sorensen
2015-05-13 17:33 ` Lennart Sorensen
2015-05-01 14:00 ` Gilles Chanteperdrix
2015-04-30 21:34 ` Gilles Chanteperdrix
2015-05-01 14:20 ` Lennart Sorensen
2015-05-01 14:30 ` Gilles Chanteperdrix
2015-05-01 15:11 ` Lennart Sorensen
2015-05-01 15:22 ` Gilles Chanteperdrix
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=20150430183147.GZ1993@hermes.click-hack.org \
--to=gilles.chanteperdrix@xenomai.org \
--cc=hongfei@mperpetuo.com \
--cc=xenomai@xenomai.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.