From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
ccross@android.com, catalin.marinas@arm.com,
linus.ml.walleij@gmail.com
Subject: Re: [PATCH 5/5] ARM: smp: Skip secondary cpu calibration to speed-up boot
Date: Mon, 24 Jan 2011 10:30:43 +0000 [thread overview]
Message-ID: <20110124103043.GB18459@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1295859080-15259-6-git-send-email-santosh.shilimkar@ti.com>
On Mon, Jan 24, 2011 at 02:21:19PM +0530, Santosh Shilimkar wrote:
> On some architectures, secondary cores shares clock with primiary
> core and hence scale together. Hence secondary core lpj calibration
> is not necessary and can be skipped to save considerable time.
>
> This can speed up the secondary cpu boot and hotplug cpu online
> paths.
I still point out that this will be a user visible change in /proc/cpuinfo.
WARNING: multiple messages have this Message-ID (diff)
From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 5/5] ARM: smp: Skip secondary cpu calibration to speed-up boot
Date: Mon, 24 Jan 2011 10:30:43 +0000 [thread overview]
Message-ID: <20110124103043.GB18459@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1295859080-15259-6-git-send-email-santosh.shilimkar@ti.com>
On Mon, Jan 24, 2011 at 02:21:19PM +0530, Santosh Shilimkar wrote:
> On some architectures, secondary cores shares clock with primiary
> core and hence scale together. Hence secondary core lpj calibration
> is not necessary and can be skipped to save considerable time.
>
> This can speed up the secondary cpu boot and hotplug cpu online
> paths.
I still point out that this will be a user visible change in /proc/cpuinfo.
next prev parent reply other threads:[~2011-01-24 10:30 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-24 8:51 [PATCH 0/5] ARM: Few patches for PM enablement Santosh Shilimkar
2011-01-24 8:51 ` Santosh Shilimkar
2011-01-24 8:51 ` [PATCH 1/5] ARM: gic: Add hooks for architecture specific extensions Santosh Shilimkar
2011-01-24 8:51 ` Santosh Shilimkar
2011-01-25 3:03 ` Colin Cross
2011-01-25 3:03 ` Colin Cross
2011-01-25 20:54 ` Colin Cross
2011-01-25 20:54 ` Colin Cross
2011-01-26 7:22 ` Santosh Shilimkar
2011-01-26 7:22 ` Santosh Shilimkar
2011-01-26 7:23 ` Colin Cross
2011-01-26 7:23 ` Colin Cross
2011-01-26 7:31 ` Santosh Shilimkar
2011-01-26 7:31 ` Santosh Shilimkar
2011-01-26 7:52 ` Colin Cross
2011-01-26 7:52 ` Colin Cross
2011-01-26 7:55 ` Santosh Shilimkar
2011-01-26 7:55 ` Santosh Shilimkar
2011-01-24 8:51 ` [PATCH 2/5] ARM: gic: Add distributor and interface enable/disable accessory api Santosh Shilimkar
2011-01-24 8:51 ` Santosh Shilimkar
2011-03-01 5:58 ` Santosh Shilimkar
2011-03-01 5:58 ` Santosh Shilimkar
2011-01-24 8:51 ` [PATCH 3/5] ARM: twd: Add context save restore support Santosh Shilimkar
2011-01-24 8:51 ` Santosh Shilimkar
2011-01-24 11:06 ` Russell King - ARM Linux
2011-01-24 11:06 ` Russell King - ARM Linux
2011-01-24 11:11 ` Russell King - ARM Linux
2011-01-24 11:11 ` Russell King - ARM Linux
2011-01-24 11:16 ` Santosh Shilimkar
2011-01-24 11:16 ` Santosh Shilimkar
2011-01-25 7:39 ` Colin Cross
2011-01-25 7:39 ` Colin Cross
2011-01-25 10:32 ` Russell King - ARM Linux
2011-01-25 10:32 ` Russell King - ARM Linux
2011-01-25 13:23 ` Thomas Gleixner
2011-01-25 13:23 ` Thomas Gleixner
2011-01-25 13:37 ` Russell King - ARM Linux
2011-01-25 13:37 ` Russell King - ARM Linux
2011-01-25 13:55 ` Santosh Shilimkar
2011-01-25 13:55 ` Santosh Shilimkar
2011-01-25 14:12 ` Thomas Gleixner
2011-01-25 14:12 ` Thomas Gleixner
2011-01-25 14:15 ` Russell King - ARM Linux
2011-01-25 14:15 ` Russell King - ARM Linux
2011-01-25 14:24 ` Thomas Gleixner
2011-01-25 14:24 ` Thomas Gleixner
2011-01-25 16:04 ` Santosh Shilimkar
2011-01-25 16:04 ` Santosh Shilimkar
2011-01-25 16:13 ` Russell King - ARM Linux
2011-01-25 16:13 ` Russell King - ARM Linux
2011-01-25 16:14 ` Santosh Shilimkar
2011-01-25 16:14 ` Santosh Shilimkar
2011-01-25 11:29 ` Russell King - ARM Linux
2011-01-25 11:29 ` Russell King - ARM Linux
2011-01-25 11:40 ` Santosh Shilimkar
2011-01-25 11:40 ` Santosh Shilimkar
2011-01-25 11:48 ` Russell King - ARM Linux
2011-01-25 11:48 ` Russell King - ARM Linux
2011-01-25 12:08 ` Santosh Shilimkar
2011-01-25 12:08 ` Santosh Shilimkar
2011-01-25 12:17 ` Russell King - ARM Linux
2011-01-25 12:17 ` Russell King - ARM Linux
2011-01-25 12:20 ` Santosh Shilimkar
2011-01-25 12:20 ` Santosh Shilimkar
2011-01-25 18:44 ` Colin Cross
2011-01-25 18:44 ` Colin Cross
2011-01-24 11:14 ` Santosh Shilimkar
2011-01-24 11:14 ` Santosh Shilimkar
2011-01-24 8:51 ` [PATCH 4/5] ARM: scu: Move register defines to header file Santosh Shilimkar
2011-01-24 8:51 ` Santosh Shilimkar
2011-01-25 11:46 ` Russell King - ARM Linux
2011-01-25 11:46 ` Russell King - ARM Linux
2011-01-25 12:02 ` Santosh Shilimkar
2011-01-25 12:02 ` Santosh Shilimkar
2011-01-25 12:16 ` Russell King - ARM Linux
2011-01-25 12:16 ` Russell King - ARM Linux
2011-01-25 12:29 ` Russell King - ARM Linux
2011-01-25 12:29 ` Russell King - ARM Linux
2011-01-25 12:39 ` Santosh Shilimkar
2011-01-25 12:39 ` Santosh Shilimkar
2011-01-25 12:36 ` Santosh Shilimkar
2011-01-25 12:36 ` Santosh Shilimkar
2011-01-25 12:56 ` Russell King - ARM Linux
2011-01-25 12:56 ` Russell King - ARM Linux
2011-01-25 13:04 ` Russell King - ARM Linux
2011-01-25 13:04 ` Russell King - ARM Linux
2011-01-25 13:06 ` Russell King - ARM Linux
2011-01-25 13:06 ` Russell King - ARM Linux
2011-01-25 18:23 ` Santosh Shilimkar
2011-01-25 18:23 ` Santosh Shilimkar
2011-02-04 10:41 ` Russell King - ARM Linux
2011-02-04 10:41 ` Russell King - ARM Linux
2011-02-04 10:46 ` Santosh Shilimkar
2011-02-04 10:46 ` Santosh Shilimkar
2011-02-04 11:30 ` Russell King - ARM Linux
2011-02-04 11:30 ` Russell King - ARM Linux
2011-02-04 11:34 ` Santosh Shilimkar
2011-02-04 11:34 ` Santosh Shilimkar
2011-02-07 9:51 ` Santosh Shilimkar
2011-02-07 9:51 ` Santosh Shilimkar
2011-02-07 10:18 ` Russell King - ARM Linux
2011-02-07 10:18 ` Russell King - ARM Linux
2011-02-07 10:21 ` Santosh Shilimkar
2011-02-07 10:21 ` Santosh Shilimkar
2011-02-07 10:23 ` Russell King - ARM Linux
2011-02-07 10:23 ` Russell King - ARM Linux
2011-02-07 10:30 ` Santosh Shilimkar
2011-02-07 10:30 ` Santosh Shilimkar
2011-02-10 14:49 ` Santosh Shilimkar
2011-02-10 14:49 ` Santosh Shilimkar
2011-02-10 16:13 ` Russell King - ARM Linux
2011-02-10 16:13 ` Russell King - ARM Linux
2011-02-10 16:26 ` Santosh Shilimkar
2011-02-10 16:26 ` Santosh Shilimkar
2011-01-25 13:05 ` Santosh Shilimkar
2011-01-25 13:05 ` Santosh Shilimkar
2011-01-25 13:41 ` Russell King - ARM Linux
2011-01-25 13:41 ` Russell King - ARM Linux
2011-01-25 13:47 ` Santosh Shilimkar
2011-01-25 13:47 ` Santosh Shilimkar
2011-01-24 8:51 ` [PATCH 5/5] ARM: smp: Skip secondary cpu calibration to speed-up boot Santosh Shilimkar
2011-01-24 8:51 ` Santosh Shilimkar
2011-01-24 10:30 ` Russell King - ARM Linux [this message]
2011-01-24 10:30 ` Russell King - ARM Linux
2011-01-24 8:51 ` Santosh Shilimkar
2011-01-24 8:51 ` Santosh Shilimkar
2011-01-24 8:55 ` Santosh Shilimkar
2011-01-24 8:55 ` Santosh Shilimkar
2011-02-04 10:19 ` [PATCH 0/5] ARM: Few patches for PM enablement Santosh Shilimkar
2011-02-04 10:19 ` Santosh Shilimkar
2011-02-11 14:24 ` Santosh Shilimkar
2011-02-11 14:24 ` Santosh Shilimkar
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