lkml.org 
[lkml]   [2014]   [Feb]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v3 5/7] clocksource/cadence_ttc: Use only one counter
Hi Thomas,

On Tue, Feb 04, 2014 at 09:41:53PM +0100, Thomas Gleixner wrote:
> On Mon, 3 Feb 2014, Soren Brinkmann wrote:
>
> > Currently the driver uses two of the three counters the TTC provides to
> > implement a clocksource and a clockevent device. By using the TTC's
> > match feature we can implement both use cases using a single counter
> > only.
>
> Are you entirely sure that this match feature is free of the infamous
> HPET match feature issues?
>
> See arch/x86/kernel/hpet.c: hpet_next_event()
>
> If yes, please add a comment. If no ....
Good catch. Looks like the comparator compares on == as well. So, I
assume it may show similar issues. I'll have to spend some more time
looking into this.

Thanks for applying the first two patches of the series.

Thanks,
Sören


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2014-02-10 20:21    [W:0.195 / U:0.120 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site