linux-kernel - Re: [PATCH v5 01/18] ARM64: Move the init of cpu_logical_map(0) before unflatten_device

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Message-ID: <20141118170349.GU18842@arm.com>
Date:	Tue, 18 Nov 2014 17:03:50 +0000
From:	Will Deacon <will.deacon@....com>
To:	Sudeep Holla <Sudeep.Holla@....com>
Cc:	Catalin Marinas <Catalin.Marinas@....com>,
	"hanjun.guo@...aro.org" <hanjun.guo@...aro.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Mark Rutland <Mark.Rutland@....com>,
	Olof Johansson <olof@...om.net>,
	"grant.likely@...aro.org" <grant.likely@...aro.org>,
	"graeme.gregory@...aro.org" <graeme.gregory@...aro.org>,
	Arnd Bergmann <arnd@...db.de>,
	"jcm@...hat.com" <jcm@...hat.com>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <Marc.Zyngier@....com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>,
	Robert Richter <rric@...nel.org>,
	Lv Zheng <lv.zheng@...el.com>,
	Robert Moore <robert.moore@...el.com>,
	Lorenzo Pieralisi <Lorenzo.Pieralisi@....com>,
	Liviu Dudau <Liviu.Dudau@....com>,
	Randy Dunlap <rdunlap@...radead.org>,
	Charles Garcia-Tobin <Charles.Garcia-Tobin@....com>,
	"Kangkang.Shen@...wei.com" <Kangkang.Shen@...wei.com>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linaro-acpi@...ts.linaro.org" <linaro-acpi@...ts.linaro.org>
Subject: Re: [PATCH v5 01/18] ARM64: Move the init of cpu_logical_map(0)
 before unflatten_device_tree()

On Tue, Nov 18, 2014 at 05:02:05PM +0000, Sudeep Holla wrote:
> On 18/11/14 16:57, Will Deacon wrote:
> > On Tue, Nov 18, 2014 at 04:43:13PM +0000, Catalin Marinas wrote:
> >> On Tue, Nov 18, 2014 at 01:45:49PM +0000, Hanjun Guo wrote:
> >>> On 2014年10月17日 21:36, Hanjun Guo wrote:
> >>>> It always make sense to initialize CPU0's logical map entry from the
> >>>> hardware values, so move the initialization of cpu_logical_map(0)
> >>>> before unflatten_device_tree() which is needed by ACPI code later.
> >>>>
> >>>> Acked-by: Olof Johansson <olof@...om.net>
> >>>> Acked-by: Mark Rutland <mark.rutland@....com>
> >>>> Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>
> >>>
> >>> Could you merge this patch first in 3.19? It was acked by Olof and
> >>> Mark, and it will make sense without ACPI too.
> >>
> >> I think it can go in for 3.19 (it's Will's turn this time ;)).
> >
> > This patch doesn't apply on for-next/core, as it conflicts with some of
> > Rutland's rework ("arm64: log physical ID of boot CPU").
> >
> 
> It's actually not required anymore, as "arm64: log physical ID of boot
> CPU" move it quite early in the sequence from setup_arch to
> smp_setup_processor_id while this patch just moves it up in setup_arch.

Thanks Sudeep, I'd guessed as much :)

Will
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