linux-kernel - Re: [PATCH 02/20] ARM64 : Add dummy asm/cpu.h

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Message-ID: <52E27BA1.4080909@linaro.org>
Date:	Fri, 24 Jan 2014 22:41:37 +0800
From:	Hanjun Guo <hanjun.guo@...aro.org>
To:	Catalin Marinas <catalin.marinas@....com>
CC:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Will Deacon <Will.Deacon@....com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"grant.likely@...aro.org" <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 <robh@...nel.org>,
	Mark Rutland <Mark.Rutland@....com>,
	Arnd Bergmann <arnd@...db.de>,
	"patches@...aro.org" <patches@...aro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>,
	"linaro-acpi@...ts.linaro.org" <linaro-acpi@...ts.linaro.org>,
	Charles Garcia-Tobin <Charles.Garcia-Tobin@....com>,
	"graeme.gregory@...aro.org" <graeme.gregory@...aro.org>
Subject: Re: [PATCH 02/20] ARM64 : Add dummy asm/cpu.h

On 2014年01月24日 00:15, Catalin Marinas wrote:
> On Fri, Jan 17, 2014 at 12:24:56PM +0000, Hanjun Guo wrote:
>> ACPI requires a cpu.h, add a dummy one copied from arm. This will need
>> updated or replaced as ACPI based cpu hotplug or cpu topology for armv8
>> is worked out.
>>
>> Signed-off-by: Graeme Gregory <graeme.gregory@...aro.org>
>> Signed-off-by: Hanjun Guo <hanjun.guo@...aro.org>
>> ---
>>   arch/arm64/include/asm/cpu.h |   25 +++++++++++++++++++++++++
>>   1 file changed, 25 insertions(+)
>>   create mode 100644 arch/arm64/include/asm/cpu.h
>>
>> diff --git a/arch/arm64/include/asm/cpu.h b/arch/arm64/include/asm/cpu.h
>> new file mode 100644
>> index 0000000..8625eb1
>> --- /dev/null
>> +++ b/arch/arm64/include/asm/cpu.h
>> @@ -0,0 +1,25 @@
>> +/*
>> + *  Copyright (C) 2004-2005 ARM Ltd.
>> + *
>> + * This program is free software; you can redistribute it and/or modify
>> + * it under the terms of the GNU General Public License version 2 as
>> + * published by the Free Software Foundation.
>> + */
>> +#ifndef __ASM_ARM_CPU_H
>> +#define __ASM_ARM_CPU_H
>> +
>> +#include <linux/percpu.h>
>> +#include <linux/cpu.h>
>> +#include <linux/topology.h>
>> +
>> +struct cpuinfo_arm {
>> +	struct cpu	cpu;
>> +	u64		cpuid;
>> +#ifdef CONFIG_SMP
>> +	unsigned int	loops_per_jiffy;
>> +#endif
>> +};
>> +
>> +DECLARE_PER_CPU(struct cpuinfo_arm, cpu_data);
>> +
>> +#endif
> Could you not leave this file empty until you add the code that actually
> makes use of cpu_data?

Of course, I will update in next version :)

Thanks
Hanjun

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