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From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 05/10] ARM: zx: bring up the secondary core
Date: Sat, 14 Mar 2015 22:25:03 +0100	[thread overview]
Message-ID: <2076674.uPo0q8sg2C@wuerfel> (raw)
In-Reply-To: <1426333785-3952-6-git-send-email-jun.nie@linaro.org>

On Saturday 14 March 2015 19:49:40 Jun Nie wrote:
> +
> +       /*
> +        * This is really belt and braces; we hold unintended secondary
> +        * CPUs in the holding pen until we're ready for them.  However,
> +        * since we haven't sent them a soft interrupt, they shouldn't
> +        * be there.
> +        */
> +       write_pen_release(cpu);
> +
> 

Why do you need the holding pen on this platform? Is there a firmware
bug or just missing hardware support for proper SMP power management?

	Arnd

  reply	other threads:[~2015-03-14 21:25 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-14 11:49 [PATCH 00/10] ZTE platform basic support Jun Nie
2015-03-14 11:49 ` [PATCH 01/10] ARM: zx: add basic support of ZTE ZX296702 Jun Nie
2015-03-14 21:21   ` Arnd Bergmann
2015-03-14 11:49 ` [PATCH 02/10] ARM: zx: add low level debug support Jun Nie
2015-03-15 22:44   ` Matthias Brugger
2015-03-15 22:48   ` Russell King - ARM Linux
2015-03-16  2:37     ` Shawn Guo
2015-03-16 10:08       ` Arnd Bergmann
2015-03-14 11:49 ` [PATCH 03/10] MAINTAINERS: add entry for ZTE ARM architecture Jun Nie
2015-03-14 11:49 ` [PATCH 04/10] ARM: zx: add initial L2CC initialization Jun Nie
2015-03-14 21:22   ` Arnd Bergmann
2015-03-16  2:48     ` Shawn Guo
2015-03-16  3:04       ` Jisheng Zhang
2015-03-16 10:41   ` Russell King - ARM Linux
2015-03-14 11:49 ` [PATCH 05/10] ARM: zx: bring up the secondary core Jun Nie
2015-03-14 21:25   ` Arnd Bergmann [this message]
2015-03-16  7:23     ` Shawn Guo
2015-03-14 11:49 ` [PATCH 06/10] ARM: zx: add cpu hotplug support Jun Nie
2015-03-14 21:26   ` Arnd Bergmann
2015-03-14 11:49 ` [PATCH 07/10] dt/binding: Document ZTE zx296702 devicetree Jun Nie
2015-03-14 11:49 ` [PATCH 08/10] ARM: dts: zx: add an initial dts for zx296702 Jun Nie
2015-03-14 21:30   ` Arnd Bergmann
2015-03-14 11:49 ` [PATCH 09/10] ARM: zx: Add basic defconfig support to ZX296702 Jun Nie
2015-03-15 13:15   ` Shawn Guo
2015-03-14 11:49 ` [PATCH 10/10] clk: zx: add zx296702 clock support Jun Nie
2015-03-14 21:33   ` Arnd Bergmann
2015-03-16 11:33   ` Russell King - ARM Linux

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