From: Santosh Shilimkar <santosh.shilimkar@ti.com>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: david@lang.hm, Russell King - ARM Linux <linux@arm.linux.org.uk>,
Arnd Bergmann <arnd@arndb.de>, Nicolas Pitre <nico@fluxnic.net>,
Marc Zyngier <Marc.Zyngier@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
lkml <linux-kernel@vger.kernel.org>,
Tony Lindgren <tony@atomide.com>,
linux-arm-kernel@lists.infradead.org,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-omap@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>, Detlef Vollmann <dv@vollmann.ch>,
David Brown <davidb@codeaurora.org>,
Stephen Boyd <sboyd@codeaurora.org>
Subject: Re: [GIT PULL] omap changes for v2.6.39 merge window
Date: Wed, 06 Apr 2011 12:13:54 +0530 [thread overview]
Message-ID: <4D9C0BAA.40602@ti.com> (raw)
In-Reply-To: <BANLkTinZ+3PqkbbJp3fFs_Z8JBHQdPYM_g@mail.gmail.com>
On 4/6/2011 3:46 AM, Linus Walleij wrote:
> 2011/4/5 Santosh Shilimkar<santosh.shilimkar@ti.com>:
>> [Me]
>>> (And third it will also eventually need to hook into the timer-based
>>> delay framework that I think Nokia is working on to be really
>>> useful, else all delays become unpredictable.)
>>>
>> Do you mean udelay()/mdelay() here ?
>
> Yes. Stephen Boyd from Qualcomm has floated patches to fix it for the
> ARM architecture, I just pushed him again. We use it in our
> ST-Ericsson products.
>
I remember the post.
> Ideally you'd want that to go along with the A15 timer stuff so that this
> monotonic high-precision timer is also used for udelay()/mdelay().
>
The A15 counter which is always available and running can be used
to emulate this.
Regards
Santosh
WARNING: multiple messages have this Message-ID (diff)
From: santosh.shilimkar@ti.com (Santosh Shilimkar)
To: linux-arm-kernel@lists.infradead.org
Subject: [GIT PULL] omap changes for v2.6.39 merge window
Date: Wed, 06 Apr 2011 12:13:54 +0530 [thread overview]
Message-ID: <4D9C0BAA.40602@ti.com> (raw)
In-Reply-To: <BANLkTinZ+3PqkbbJp3fFs_Z8JBHQdPYM_g@mail.gmail.com>
On 4/6/2011 3:46 AM, Linus Walleij wrote:
> 2011/4/5 Santosh Shilimkar<santosh.shilimkar@ti.com>:
>> [Me]
>>> (And third it will also eventually need to hook into the timer-based
>>> delay framework that I think Nokia is working on to be really
>>> useful, else all delays become unpredictable.)
>>>
>> Do you mean udelay()/mdelay() here ?
>
> Yes. Stephen Boyd from Qualcomm has floated patches to fix it for the
> ARM architecture, I just pushed him again. We use it in our
> ST-Ericsson products.
>
I remember the post.
> Ideally you'd want that to go along with the A15 timer stuff so that this
> monotonic high-precision timer is also used for udelay()/mdelay().
>
The A15 counter which is always available and running can be used
to emulate this.
Regards
Santosh
next prev parent reply other threads:[~2011-04-06 6:43 UTC|newest]
Thread overview: 341+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-17 18:30 [GIT PULL] omap changes for v2.6.39 merge window Tony Lindgren
2011-03-17 18:30 ` Tony Lindgren
2011-03-18 2:50 ` Linus Torvalds
2011-03-18 2:50 ` Linus Torvalds
2011-03-18 7:06 ` Tony Lindgren
2011-03-18 7:06 ` Tony Lindgren
2011-03-18 10:15 ` Russell King - ARM Linux
2011-03-18 10:15 ` Russell King - ARM Linux
2011-03-18 11:13 ` Uwe Kleine-König
2011-03-18 11:13 ` Uwe Kleine-König
2011-03-18 11:13 ` Uwe Kleine-König
2011-03-30 17:06 ` Arnd Bergmann
2011-03-30 17:06 ` Arnd Bergmann
2011-03-30 19:21 ` Linus Torvalds
2011-03-30 19:21 ` Linus Torvalds
2011-03-30 20:41 ` Nicolas Pitre
2011-03-30 20:41 ` Nicolas Pitre
2011-03-30 21:02 ` Linus Torvalds
2011-03-30 21:02 ` Linus Torvalds
2011-03-30 21:02 ` Linus Torvalds
2011-03-30 23:31 ` Nicolas Pitre
2011-03-30 23:31 ` Nicolas Pitre
2011-03-30 23:59 ` Russell King - ARM Linux
2011-03-30 23:59 ` Russell King - ARM Linux
2011-03-31 0:15 ` Tony Lindgren
2011-03-31 0:15 ` Tony Lindgren
2011-03-31 0:31 ` Bill Gatliff
2011-03-31 0:31 ` Bill Gatliff
2011-03-31 0:31 ` Bill Gatliff
2011-03-31 0:39 ` david
2011-03-31 0:39 ` david at lang.hm
2011-03-31 3:17 ` Nicolas Pitre
2011-03-31 3:17 ` Nicolas Pitre
2011-03-31 3:29 ` Dave Airlie
2011-03-31 3:29 ` Dave Airlie
2011-03-31 4:38 ` Nicolas Pitre
2011-03-31 4:38 ` Nicolas Pitre
2011-03-31 9:54 ` Alan Cox
2011-03-31 9:54 ` Alan Cox
2011-03-31 10:50 ` Russell King - ARM Linux
2011-03-31 10:50 ` Russell King - ARM Linux
2011-03-31 12:23 ` Jean-Christophe PLAGNIOL-VILLARD
2011-03-31 12:23 ` Jean-Christophe PLAGNIOL-VILLARD
2011-03-31 12:23 ` Jean-Christophe PLAGNIOL-VILLARD
2011-03-31 12:38 ` Catalin Marinas
2011-03-31 12:38 ` Catalin Marinas
2011-03-31 13:01 ` Russell King - ARM Linux
2011-03-31 13:01 ` Russell King - ARM Linux
2011-03-31 14:55 ` Bill Gatliff
2011-03-31 14:55 ` Bill Gatliff
2011-04-01 12:41 ` Arnd Bergmann
2011-04-01 12:41 ` Arnd Bergmann
2011-03-31 18:12 ` Sam Ravnborg
2011-03-31 18:12 ` Sam Ravnborg
2011-03-31 18:17 ` Russell King - ARM Linux
2011-03-31 18:17 ` Russell King - ARM Linux
2011-03-31 18:34 ` Jesse Barnes
2011-03-31 18:34 ` Jesse Barnes
2011-03-31 13:54 ` Thomas Gleixner
2011-03-31 13:54 ` Thomas Gleixner
2011-03-31 17:22 ` david
2011-03-31 17:22 ` david at lang.hm
2011-03-31 18:08 ` Koen Kooi
2011-03-31 18:08 ` Koen Kooi
2011-03-31 5:05 ` david
2011-03-31 5:05 ` david at lang.hm
2011-03-31 7:15 ` Nicolas Pitre
2011-03-31 7:15 ` Nicolas Pitre
2011-03-31 8:06 ` Ingo Molnar
2011-03-31 8:06 ` Ingo Molnar
2011-03-31 8:30 ` Russell King - ARM Linux
2011-03-31 8:30 ` Russell King - ARM Linux
2011-03-31 10:41 ` Ingo Molnar
2011-03-31 10:41 ` Ingo Molnar
2011-03-31 13:25 ` Russell King - ARM Linux
2011-03-31 13:25 ` Russell King - ARM Linux
2011-03-31 12:04 ` Thomas Gleixner
2011-03-31 12:04 ` Thomas Gleixner
2011-03-31 14:43 ` Kevin Hilman
2011-03-31 14:43 ` Kevin Hilman
2011-03-31 15:01 ` Thomas Gleixner
2011-03-31 15:01 ` Thomas Gleixner
2011-03-31 15:05 ` Russell King - ARM Linux
2011-03-31 15:05 ` Russell King - ARM Linux
2011-03-31 15:45 ` david
2011-03-31 15:45 ` david at lang.hm
2011-03-31 15:23 ` Arnd Bergmann
2011-03-31 15:23 ` Arnd Bergmann
2011-03-31 16:58 ` Thomas Gleixner
2011-03-31 16:58 ` Thomas Gleixner
2011-03-31 18:23 ` Nicolas Pitre
2011-03-31 18:23 ` Nicolas Pitre
2011-03-31 18:55 ` Thomas Gleixner
2011-03-31 18:55 ` Thomas Gleixner
2011-04-01 11:32 ` Arnd Bergmann
2011-04-01 11:32 ` Arnd Bergmann
2011-03-31 20:35 ` Kevin Hilman
2011-03-31 20:35 ` Kevin Hilman
2011-04-01 11:29 ` Arnd Bergmann
2011-04-01 11:29 ` Arnd Bergmann
2011-04-01 11:29 ` Arnd Bergmann
2011-04-01 7:32 ` Tomi Valkeinen
2011-04-01 7:32 ` Tomi Valkeinen
2011-04-01 11:22 ` Arnd Bergmann
2011-04-01 11:22 ` Arnd Bergmann
2011-04-01 11:22 ` Arnd Bergmann
2011-04-01 11:55 ` Tomi Valkeinen
2011-04-01 11:55 ` Tomi Valkeinen
2011-04-01 12:07 ` Arnd Bergmann
2011-04-01 12:07 ` Arnd Bergmann
2011-04-01 12:15 ` Tomi Valkeinen
2011-04-01 12:15 ` Tomi Valkeinen
2011-03-31 16:03 ` david
2011-03-31 16:03 ` david at lang.hm
2011-03-31 16:45 ` Russell King - ARM Linux
2011-03-31 16:45 ` Russell King - ARM Linux
2011-03-31 17:17 ` Linus Torvalds
2011-03-31 17:17 ` Linus Torvalds
2011-03-31 19:25 ` Nicolas Pitre
2011-03-31 19:25 ` Nicolas Pitre
2011-03-31 20:05 ` Linus Torvalds
2011-03-31 20:05 ` Linus Torvalds
2011-03-31 20:28 ` Linus Torvalds
2011-03-31 20:28 ` Linus Torvalds
2011-03-31 22:49 ` Nicolas Pitre
2011-03-31 22:49 ` Nicolas Pitre
2011-04-01 0:53 ` Mark Brown
2011-04-01 0:53 ` Mark Brown
2011-04-01 4:50 ` David Brown
2011-04-01 4:50 ` David Brown
2011-04-01 7:45 ` Ingo Molnar
2011-04-01 7:45 ` Ingo Molnar
2011-04-01 13:54 ` Arnd Bergmann
2011-04-01 13:54 ` Arnd Bergmann
2011-04-01 14:28 ` Detlef Vollmann
2011-04-01 14:28 ` Detlef Vollmann
2011-04-01 14:59 ` Arnd Bergmann
2011-04-01 14:59 ` Arnd Bergmann
2011-04-01 15:30 ` Detlef Vollmann
2011-04-01 15:30 ` Detlef Vollmann
2011-04-01 15:50 ` Arnd Bergmann
2011-04-01 15:50 ` Arnd Bergmann
2011-04-01 17:44 ` Russell King - ARM Linux
2011-04-01 17:44 ` Russell King - ARM Linux
2011-04-01 19:54 ` Nicolas Pitre
2011-04-01 19:54 ` Nicolas Pitre
2011-04-01 21:00 ` Uwe Kleine-König
2011-04-01 21:00 ` Uwe Kleine-König
2011-04-01 21:00 ` Uwe Kleine-König
2011-04-01 22:08 ` Arnd Bergmann
2011-04-01 22:08 ` Arnd Bergmann
2011-04-02 2:24 ` Nicolas Pitre
2011-04-02 2:24 ` Nicolas Pitre
2011-04-03 15:26 ` Arnd Bergmann
2011-04-03 15:26 ` Arnd Bergmann
2011-04-03 16:03 ` Russell King - ARM Linux
2011-04-03 16:03 ` Russell King - ARM Linux
2011-04-04 0:59 ` Arnd Bergmann
2011-04-04 0:59 ` Arnd Bergmann
2011-04-04 0:59 ` Arnd Bergmann
2011-04-04 8:26 ` Marc Zyngier
2011-04-04 8:26 ` Marc Zyngier
2011-04-04 11:03 ` Catalin Marinas
2011-04-04 11:03 ` Catalin Marinas
2011-04-04 11:21 ` Russell King - ARM Linux
2011-04-04 11:21 ` Russell King - ARM Linux
2011-04-04 13:24 ` Marc Zyngier
2011-04-04 13:24 ` Marc Zyngier
2011-04-04 13:31 ` Russell King - ARM Linux
2011-04-04 13:31 ` Russell King - ARM Linux
2011-04-04 13:57 ` Marc Zyngier
2011-04-04 13:57 ` Marc Zyngier
2011-04-04 20:08 ` Linus Walleij
2011-04-04 20:08 ` Linus Walleij
2011-04-05 6:40 ` Santosh Shilimkar
2011-04-05 6:40 ` Santosh Shilimkar
2011-04-05 7:45 ` Russell King - ARM Linux
2011-04-05 7:45 ` Russell King - ARM Linux
2011-04-05 14:15 ` Catalin Marinas
2011-04-05 14:15 ` Catalin Marinas
2011-04-05 22:16 ` Linus Walleij
2011-04-05 22:16 ` Linus Walleij
2011-04-06 6:43 ` Santosh Shilimkar [this message]
2011-04-06 6:43 ` Santosh Shilimkar
2011-04-05 22:22 ` Linus Walleij
2011-04-05 22:22 ` Linus Walleij
2011-04-06 6:41 ` Santosh Shilimkar
2011-04-06 6:41 ` Santosh Shilimkar
2011-04-05 7:30 ` Marc Zyngier
2011-04-05 7:30 ` Marc Zyngier
2011-05-26 13:38 ` Pavel Machek
2011-05-26 13:38 ` Pavel Machek
2011-04-02 2:59 ` Mark Brown
2011-04-02 2:59 ` Mark Brown
2011-04-04 5:16 ` Jean-Christophe PLAGNIOL-VILLARD
2011-04-04 5:16 ` Jean-Christophe PLAGNIOL-VILLARD
2011-04-04 9:27 ` Nicolas Ferre
2011-04-04 9:27 ` Nicolas Ferre
2011-04-01 21:10 ` Kevin Hilman
2011-04-01 21:10 ` Kevin Hilman
2011-04-01 21:32 ` Arnd Bergmann
2011-04-01 21:32 ` Arnd Bergmann
2011-04-01 21:51 ` Catalin Marinas
2011-04-01 21:51 ` Catalin Marinas
2011-04-03 22:18 ` Benjamin Herrenschmidt
2011-04-03 22:18 ` Benjamin Herrenschmidt
2011-04-04 0:14 ` Arnd Bergmann
2011-04-04 0:14 ` Arnd Bergmann
2011-04-04 2:49 ` Nicolas Pitre
2011-04-04 2:49 ` Nicolas Pitre
2011-04-01 15:27 ` Will Deacon
2011-04-01 15:27 ` Will Deacon
2011-04-01 15:55 ` Arnd Bergmann
2011-04-01 15:55 ` Arnd Bergmann
2011-04-01 16:39 ` Linus Torvalds
2011-04-01 16:39 ` Linus Torvalds
2011-04-03 22:26 ` Benjamin Herrenschmidt
2011-04-03 22:26 ` Benjamin Herrenschmidt
2011-04-03 22:26 ` Benjamin Herrenschmidt
2011-04-05 23:19 ` Linus Walleij
2011-04-05 23:19 ` Linus Walleij
2011-04-06 8:41 ` Catalin Marinas
2011-04-06 8:41 ` Catalin Marinas
2011-04-07 1:44 ` Arnd Bergmann
2011-04-07 1:44 ` Arnd Bergmann
2011-04-01 20:19 ` Nicolas Pitre
2011-04-01 20:19 ` Nicolas Pitre
2011-04-02 4:38 ` Richard Cochran
2011-04-02 4:38 ` Richard Cochran
2011-04-02 3:27 ` Mark Brown
2011-04-02 3:27 ` Mark Brown
2011-04-06 6:11 ` Barry Song
2011-04-06 6:11 ` Barry Song
2011-04-06 6:11 ` Barry Song
2011-04-06 7:31 ` Bryan Wu
2011-04-06 7:31 ` Bryan Wu
2011-03-31 21:40 ` Thomas Gleixner
2011-03-31 21:40 ` Thomas Gleixner
2011-03-31 17:56 ` Nicolas Pitre
2011-03-31 17:56 ` Nicolas Pitre
2011-03-31 18:34 ` Thomas Gleixner
2011-03-31 18:34 ` Thomas Gleixner
2011-03-31 19:02 ` Linus Torvalds
2011-03-31 19:02 ` Linus Torvalds
2011-03-31 19:02 ` Linus Torvalds
2011-03-31 8:09 ` Russell King - ARM Linux
2011-03-31 8:09 ` Russell King - ARM Linux
2011-03-31 10:49 ` Felipe Balbi
2011-03-31 10:49 ` Felipe Balbi
2011-03-31 18:00 ` Alexander Holler
2011-03-31 18:00 ` Alexander Holler
2011-03-31 18:00 ` Alexander Holler
2011-03-31 5:45 ` Geert Uytterhoeven
2011-03-31 5:45 ` Geert Uytterhoeven
2011-03-31 7:21 ` Nicolas Pitre
2011-03-31 7:21 ` Nicolas Pitre
2011-03-30 22:08 ` Tony Lindgren
2011-03-30 22:08 ` Tony Lindgren
2011-03-30 21:10 ` Thomas Gleixner
2011-03-30 21:10 ` Thomas Gleixner
2011-03-30 21:10 ` Thomas Gleixner
2011-03-30 21:54 ` Tony Lindgren
2011-03-30 21:54 ` Tony Lindgren
2011-03-30 22:25 ` Thomas Gleixner
2011-03-30 22:25 ` Thomas Gleixner
2011-03-30 22:45 ` Tony Lindgren
2011-03-30 22:45 ` Tony Lindgren
2011-03-30 22:56 ` Thomas Gleixner
2011-03-30 22:56 ` Thomas Gleixner
2011-04-01 1:42 ` Mark Brown
2011-04-01 1:42 ` Mark Brown
2011-03-30 22:38 ` Paul E. McKenney
2011-03-30 22:38 ` Paul E. McKenney
2011-03-30 22:47 ` Tony Lindgren
2011-03-30 22:47 ` Tony Lindgren
2011-03-30 23:13 ` Paul E. McKenney
2011-03-30 23:13 ` Paul E. McKenney
2011-03-30 23:14 ` Thomas Gleixner
2011-03-30 23:14 ` Thomas Gleixner
2011-03-30 23:28 ` Tony Lindgren
2011-03-30 23:28 ` Tony Lindgren
2011-03-31 11:00 ` Artem Bityutskiy
2011-03-31 11:00 ` Artem Bityutskiy
2011-03-31 13:54 ` Arnd Bergmann
2011-03-31 13:54 ` Arnd Bergmann
2011-03-30 21:44 ` Tony Lindgren
2011-03-30 21:44 ` Tony Lindgren
2011-03-30 22:20 ` Linus Torvalds
2011-03-30 22:20 ` Linus Torvalds
2011-03-30 22:39 ` Tony Lindgren
2011-03-30 22:39 ` Tony Lindgren
2011-03-31 0:15 ` Russell King - ARM Linux
2011-03-31 0:15 ` Russell King - ARM Linux
2011-03-31 0:55 ` Linus Torvalds
2011-03-31 0:55 ` Linus Torvalds
2011-03-31 1:15 ` Bill Gatliff
2011-03-31 1:15 ` Bill Gatliff
2011-03-31 1:15 ` Bill Gatliff
2011-03-31 1:37 ` Linus Torvalds
2011-03-31 1:37 ` Linus Torvalds
2011-03-31 1:44 ` Bill Gatliff
2011-03-31 1:44 ` Bill Gatliff
2011-03-31 1:56 ` Linus Torvalds
2011-03-31 1:56 ` Linus Torvalds
2011-03-31 1:56 ` Linus Torvalds
2011-03-31 2:20 ` Bill Gatliff
2011-03-31 2:20 ` Bill Gatliff
2011-03-31 3:24 ` Linus Torvalds
2011-03-31 3:24 ` Linus Torvalds
2011-03-31 3:24 ` Linus Torvalds
2011-03-31 6:42 ` Olof Johansson
2011-03-31 6:42 ` Olof Johansson
2011-03-31 6:56 ` David Brown
2011-03-31 6:56 ` David Brown
2011-03-31 11:27 ` Felipe Balbi
2011-03-31 11:27 ` Felipe Balbi
2011-03-31 13:39 ` Thomas Gleixner
2011-03-31 13:39 ` Thomas Gleixner
2011-03-31 4:09 ` Nicolas Pitre
2011-03-31 4:09 ` Nicolas Pitre
2011-03-31 10:11 ` Thomas Gleixner
2011-03-31 10:11 ` Thomas Gleixner
2011-03-30 21:07 ` Russell King - ARM Linux
2011-03-30 21:07 ` Russell King - ARM Linux
2011-03-30 21:07 ` Russell King - ARM Linux
2011-03-30 22:14 ` Tony Lindgren
2011-03-30 22:14 ` Tony Lindgren
2011-03-30 22:14 ` Tony Lindgren
2011-04-01 1:17 ` Mark Brown
2011-04-01 1:17 ` Mark Brown
2011-04-01 14:17 ` Arnd Bergmann
2011-04-01 14:17 ` Arnd Bergmann
2011-04-01 14:17 ` Arnd Bergmann
2011-03-18 3:02 ` Linus Torvalds
2011-03-18 3:02 ` Linus Torvalds
2011-03-18 7:09 ` Tony Lindgren
2011-03-18 7:09 ` Tony Lindgren
2011-03-18 8:06 ` Ohad Ben-Cohen
2011-03-18 8:06 ` Ohad Ben-Cohen
2011-03-18 23:43 ` Tony Lindgren
2011-03-18 23:43 ` Tony Lindgren
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