From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org, tglx@linutronix.de, mingo@elte.hu,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver
Date: Thu, 17 May 2007 22:42:42 +0400 [thread overview]
Message-ID: <464CA222.8000407@ru.mvista.com> (raw)
In-Reply-To: <6E0D5E13-C939-4FCE-81A3-F29DFA6436A2@kernel.crashing.org>
Hello.
Kumar Gala wrote:
>> Kumar Gala wrote:
>>> I haven't looked at all the new clock/timer code, is there any
>>> utility in having support for more than one clock source?
>> Of course, you may register as many as you like.
> Sure, but is there any utility in registering more than the decrementer
> on PPC?
Not yet. I'm not sure I know any other PPC CPU facility fitting for
clockevents. In theory, FIT could be used -- but its period is measured in
powers of 2, IIRC.
> - k
WBR, Sergei
WARNING: multiple messages have this Message-ID (diff)
From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: tglx@linutronix.de, mingo@elte.hu, linuxppc-dev@ozlabs.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver
Date: Thu, 17 May 2007 22:42:42 +0400 [thread overview]
Message-ID: <464CA222.8000407@ru.mvista.com> (raw)
In-Reply-To: <6E0D5E13-C939-4FCE-81A3-F29DFA6436A2@kernel.crashing.org>
Hello.
Kumar Gala wrote:
>> Kumar Gala wrote:
>>> I haven't looked at all the new clock/timer code, is there any
>>> utility in having support for more than one clock source?
>> Of course, you may register as many as you like.
> Sure, but is there any utility in registering more than the decrementer
> on PPC?
Not yet. I'm not sure I know any other PPC CPU facility fitting for
clockevents. In theory, FIT could be used -- but its period is measured in
powers of 2, IIRC.
> - k
WBR, Sergei
next prev parent reply other threads:[~2007-05-17 18:41 UTC|newest]
Thread overview: 105+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-17 17:42 [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver Sergei Shtylyov
2007-05-17 17:47 ` Kumar Gala
2007-05-17 17:47 ` Kumar Gala
2007-05-17 18:07 ` Sergei Shtylyov
2007-05-17 18:07 ` Sergei Shtylyov
2007-05-17 18:17 ` Kumar Gala
2007-05-17 18:17 ` Kumar Gala
2007-05-17 18:26 ` Sergei Shtylyov
2007-05-17 18:26 ` Sergei Shtylyov
2007-05-17 18:31 ` Kumar Gala
2007-05-17 18:31 ` Kumar Gala
2007-05-17 18:42 ` Sergei Shtylyov [this message]
2007-05-17 18:42 ` Sergei Shtylyov
2007-05-18 12:39 ` Matt Sealey
2007-05-18 12:39 ` Matt Sealey
2007-05-18 13:45 ` Sergei Shtylyov
2007-05-18 13:45 ` Sergei Shtylyov
2007-05-18 14:28 ` Matt Sealey
2007-05-18 14:28 ` Matt Sealey
2007-05-18 14:48 ` Thomas Gleixner
2007-05-18 14:48 ` Thomas Gleixner
2007-05-18 15:37 ` Matt Sealey
2007-05-18 15:37 ` Matt Sealey
2007-05-18 16:31 ` Kumar Gala
2007-05-18 16:31 ` Kumar Gala
2007-05-18 16:50 ` Thomas Gleixner
2007-05-18 16:50 ` Thomas Gleixner
2007-05-18 16:55 ` Matt Sealey
2007-05-18 16:55 ` Matt Sealey
2007-05-18 16:52 ` Matt Sealey
2007-05-18 16:52 ` Matt Sealey
2007-07-10 10:52 ` Gabriel Paubert
2007-07-10 10:52 ` Gabriel Paubert
2007-07-10 14:24 ` Segher Boessenkool
2007-07-10 14:24 ` Segher Boessenkool
2007-07-10 23:31 ` Paul Mackerras
2007-07-10 23:31 ` Paul Mackerras
2007-07-11 0:10 ` Segher Boessenkool
2007-07-11 0:10 ` Segher Boessenkool
2007-05-18 20:27 ` David Miller
2007-05-18 20:27 ` David Miller
2007-05-18 14:56 ` Daniel Walker
2007-05-18 14:56 ` Daniel Walker
2007-05-18 15:06 ` Sergei Shtylyov
2007-05-18 15:06 ` Sergei Shtylyov
2007-05-18 15:39 ` Daniel Walker
2007-05-18 15:39 ` Daniel Walker
2007-05-18 15:48 ` Sergei Shtylyov
2007-05-18 15:48 ` Sergei Shtylyov
2007-05-19 3:33 ` Paul Mackerras
2007-05-19 3:33 ` Paul Mackerras
2007-05-20 2:43 ` Daniel Walker
2007-05-20 2:43 ` Daniel Walker
2007-05-20 3:03 ` Benjamin Herrenschmidt
2007-05-20 3:03 ` Benjamin Herrenschmidt
2007-05-20 15:03 ` Matt Sealey
2007-05-20 15:03 ` Matt Sealey
2007-05-20 21:25 ` Benjamin Herrenschmidt
2007-05-20 21:25 ` Benjamin Herrenschmidt
2007-05-20 16:02 ` Segher Boessenkool
2007-05-20 16:02 ` Segher Boessenkool
2007-05-20 21:26 ` Benjamin Herrenschmidt
2007-05-20 21:26 ` Benjamin Herrenschmidt
2007-05-17 19:27 ` Segher Boessenkool
2007-05-17 19:27 ` Segher Boessenkool
2007-05-17 19:43 ` Sergei Shtylyov
2007-05-17 19:43 ` Sergei Shtylyov
2007-05-17 19:50 ` Segher Boessenkool
2007-05-17 19:50 ` Segher Boessenkool
2007-05-17 20:00 ` Sergei Shtylyov
2007-05-17 20:00 ` Sergei Shtylyov
2007-05-17 20:53 ` Segher Boessenkool
2007-05-17 20:53 ` Segher Boessenkool
2007-05-18 5:04 ` Benjamin Herrenschmidt
2007-05-18 5:04 ` Benjamin Herrenschmidt
2007-05-18 5:39 ` Dave Liu
2007-05-18 5:39 ` Dave Liu
2007-05-18 7:08 ` Benjamin Herrenschmidt
2007-05-18 7:08 ` Benjamin Herrenschmidt
2007-05-18 13:41 ` Sergei Shtylyov
2007-05-18 13:41 ` Sergei Shtylyov
2007-05-18 13:48 ` Sergei Shtylyov
2007-05-18 23:27 ` Benjamin Herrenschmidt
2007-05-18 23:27 ` Benjamin Herrenschmidt
2007-05-18 23:49 ` Segher Boessenkool
2007-05-18 23:49 ` Segher Boessenkool
2007-05-19 0:13 ` Benjamin Herrenschmidt
2007-05-19 0:13 ` Benjamin Herrenschmidt
2007-05-30 15:56 ` Milton Miller
2007-05-19 3:34 ` Paul Mackerras
2007-05-19 3:34 ` Paul Mackerras
2007-05-24 18:25 ` [PATCH 2.6.21-rt7] PowerPC: fix clockevents for classic CPUs Sergei Shtylyov
2007-05-24 19:10 ` Segher Boessenkool
2007-05-24 19:10 ` Segher Boessenkool
2007-10-18 14:45 ` [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver Sergei Shtylyov
2007-10-18 14:45 ` Sergei Shtylyov
-- strict thread matches above, loose matches on Subject: below --
2007-05-18 3:24 Albert Cahalan
2007-05-18 14:52 ` Sergei Shtylyov
2007-05-18 14:52 ` Sergei Shtylyov
2007-05-19 1:45 ` Albert Cahalan
2007-05-19 1:45 ` Albert Cahalan
2007-05-19 12:28 ` Segher Boessenkool
2007-05-19 12:28 ` Segher Boessenkool
2007-05-19 18:22 ` Albert Cahalan
2007-05-19 18:22 ` Albert Cahalan
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