From: smuckle@codeaurora.org
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Daniel Walker <dwalker@codeaurora.org>,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org,
Steve Muckle <smuckle@codeaurora.org>
Subject: Re: [RFC PATCH] smp: parallel smp boot option
Date: Mon, 21 Jun 2010 17:47:17 -0700 (PDT) [thread overview]
Message-ID: <ec4622af344be763d55b91bc867f3330.squirrel@www.codeaurora.org> (raw)
In-Reply-To: <20100621223146.GE13624@n2100.arm.linux.org.uk>
>> Your OK with this hook? I was thinking it might be better to check if
>> it's the book cpu or the secondary here instead of in
>> arch/arm/mach-msm .
>
> Not entirely. It would appear that it means you can never used a
> compressed kernel on MSM, since if you do, you'll have all CPUs in
> the system decompressing the kernel simultaneously.
>
> If we have to have this hook, how about making it a weak reference
> rather than something dealt with by the configuration system?
This is something we're using until we get a more complex/featureful
bootchain in place. It probably only has value in development
platforms/early enablement. A weak reference seems fine or we could drop
it alltogether.
thanks,
Steve
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
WARNING: multiple messages have this Message-ID (diff)
From: smuckle@codeaurora.org (smuckle at codeaurora.org)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH] smp: parallel smp boot option
Date: Mon, 21 Jun 2010 17:47:17 -0700 (PDT) [thread overview]
Message-ID: <ec4622af344be763d55b91bc867f3330.squirrel@www.codeaurora.org> (raw)
In-Reply-To: <20100621223146.GE13624@n2100.arm.linux.org.uk>
>> Your OK with this hook? I was thinking it might be better to check if
>> it's the book cpu or the secondary here instead of in
>> arch/arm/mach-msm .
>
> Not entirely. It would appear that it means you can never used a
> compressed kernel on MSM, since if you do, you'll have all CPUs in
> the system decompressing the kernel simultaneously.
>
> If we have to have this hook, how about making it a weak reference
> rather than something dealt with by the configuration system?
This is something we're using until we get a more complex/featureful
bootchain in place. It probably only has value in development
platforms/early enablement. A weak reference seems fine or we could drop
it alltogether.
thanks,
Steve
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
next prev parent reply other threads:[~2010-06-22 0:47 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-21 21:40 [RFC PATCH] smp: parallel smp boot option Daniel Walker
2010-06-21 21:40 ` Daniel Walker
2010-06-21 22:00 ` Russell King - ARM Linux
2010-06-21 22:00 ` Russell King - ARM Linux
2010-06-21 22:07 ` Daniel Walker
2010-06-21 22:07 ` Daniel Walker
2010-06-21 22:22 ` Daniel Walker
2010-06-21 22:22 ` Daniel Walker
2010-06-21 22:31 ` Russell King - ARM Linux
2010-06-21 22:31 ` Russell King - ARM Linux
2010-06-22 0:47 ` smuckle [this message]
2010-06-22 0:47 ` smuckle at codeaurora.org
2010-06-22 0:23 ` smuckle
2010-06-22 0:23 ` smuckle at codeaurora.org
2010-06-21 22:03 ` [RFC PATCH] msm: initial MSM8X60 early kernel boot support Daniel Walker
2010-06-21 22:03 ` Daniel Walker
2010-06-21 22:07 ` Russell King - ARM Linux
2010-06-21 22:07 ` Russell King - ARM Linux
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