linux-kernel - Re: [RFC part1 PATCH 3/7] ACPI / processor_core: Rework _PDC related stuff to make it more arch-independent

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Message-ID: <529F3942.2020907@linaro.org>
Date:	Wed, 04 Dec 2013 22:16:34 +0800
From:	Hanjun Guo <hanjun.guo@...aro.org>
To:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
CC:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	linux-acpi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Grant Likely <grant.likely@...aro.org>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Olof Johansson <olof@...om.net>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Rob Herring <rob.herring@...xeda.com>,
	Mark Rutland <mark.rutland@....com>,
	Jon Masters <jonathan@...masters.org>, patches@...aro.org,
	linux-kernel@...r.kernel.org, linaro-kernel@...ts.linaro.org,
	linaro-acpi@...ts.linaro.org,
	Graeme Gregory <graeme.gregory@...aro.org>
Subject: Re: [RFC part1 PATCH 3/7] ACPI / processor_core: Rework _PDC related
 stuff to make it more arch-independent

On 2013年12月04日 00:51, One Thousand Gnomes wrote:
> On Wed,  4 Dec 2013 00:36:47 +0800
> Hanjun Guo <hanjun.guo@...aro.org> wrote:
>
>> _PDC related stuff in processor_core.c is little bit X86/IA64 dependent,
>> rework the code to make it more arch-independent.
>>
>> The return value of acpi_processor_eval_pdc() should be 'acpi_status' but
>> defined as 'int', fix it too.
> Why not just define boot_options_idle_override as well. Then you can
> leave the code unchanged. Also more importantly you can have override
> values for ARM when it turns out you need those too and the logic will be
> the same for both processor families

There is a platform dependent head file such as pdc_intel.h which contains
some macros, some of those macros are used in arch-independent file processor_core.c,
that's why I posted this patch.

Thanks
Hanjun

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