From: Arnd Bergmann <arnd@arndb.de>
To: michal.simek@petalogix.com
Cc: wuzhangjin@gmail.com, Steven Rostedt <rostedt@goodmis.org>,
Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: sched_clock - microblaze
Date: Thu, 15 Apr 2010 21:52:03 +0200 [thread overview]
Message-ID: <201004152152.03883.arnd@arndb.de> (raw)
In-Reply-To: <4BC76917.9060604@petalogix.com>
On Thursday 15 April 2010 21:29:27 Michal Simek wrote:
> > sched_clock() {
> > ftrace_stop();
> > printk(...);
> > ftrace_start();
> > ...
> > }
>
> But I am describing different problem. sched_clock is called before
> kernel initialized timers. Microblaze takes all information from DTS
> that's means that I am not able to read timer because I even don't know
> where it is. :-(
You could make sched_clock return zero before the clock is probed, it
is very unlikely to be needed before that anyway.
Arnd
next prev parent reply other threads:[~2010-04-15 19:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-15 14:55 sched_clock - microblaze Michal Simek
2010-04-15 15:04 ` Steven Rostedt
2010-04-15 16:32 ` Michal Simek
2010-04-15 18:12 ` Wu Zhangjin
2010-04-15 19:29 ` Michal Simek
2010-04-15 19:52 ` Arnd Bergmann [this message]
2010-04-16 6:23 ` Michal Simek
2010-04-16 8:37 ` Arnd Bergmann
2010-04-16 9:11 ` Michal Simek
2010-04-15 15:06 ` Steven J. Magnani
2010-04-15 16:21 ` Michal Simek
2010-04-15 18:26 ` Thomas Gleixner
2010-04-15 17:18 ` Wu Zhangjin
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