linux-kernel - Re: [PATCH v9 1/2] arm: introduce psci_smp

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Message-ID: <20130429085916.GB8805@mudshark.cambridge.arm.com>
Date:	Mon, 29 Apr 2013 09:59:16 +0100
From:	Will Deacon <will.deacon@....com>
To:	Stefano Stabellini <stefano.stabellini@...citrix.com>
Cc:	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"arnd@...db.de" <arnd@...db.de>,
	"nicolas.pitre@...aro.org" <nicolas.pitre@...aro.org>,
	"rob.herring@...xeda.com" <rob.herring@...xeda.com>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"olof@...om.net" <olof@...om.net>, Nicolas Pitre <nico@...aro.org>,
	Marc Zyngier <Marc.Zyngier@....com>
Subject: Re: [PATCH v9 1/2] arm: introduce psci_smp_ops

On Sun, Apr 28, 2013 at 03:50:49PM +0100, Stefano Stabellini wrote:
> Rename virt_smp_ops to psci_smp_ops and move them to arch/arm/kernel/psci_smp.c.
> Remove mach-virt/platsmp.c, now unused.
> Compile psci_smp if CONFIG_ARM_PSCI and CONFIG_SMP.
> 
> Add a cpu_die smp_op based on psci_ops.cpu_off.
> 
> Initialize PSCI before setting smp_ops in setup_arch.
> 
> If PSCI is available on the platform, prefer psci_smp_ops over the
> platform smp_ops.
> 
> Changes in v9:
> - move comment about PSCI interface from psci.h to psci_smp.c.
> 
> Changes in v8:
> - merge "prefer psci_smp_ops over mdesc->smp" into this patch.
> 
> Changes in v6:
> - fixed return values for psci_smp_available and psci_init ifndef
> CONFIG_ARM_PSCI.
> 
> Changes in v5:
> - document psci_operations;
> - psci_init returns NULL.
> 
> Signed-off-by: Stefano Stabellini <stefano.stabellini@...citrix.com>
> CC: Nicolas Pitre <nico@...aro.org>
> CC: Rob Herring <rob.herring@...xeda.com>
> CC: Will Deacon <will.deacon@....com>
> CC: arnd@...db.de
> CC: marc.zyngier@....com
> CC: linux@....linux.org.uk


Acked-by: Will Deacon <will.deacon@....com>

Will
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