linux-kernel - Re: [PATCH v2] MIPS: Add a high resolution sched_clock() via cnt32_to

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Message-ID: <4B0925BD.6070507@ru.mvista.com>
Date:	Sun, 22 Nov 2009 14:51:25 +0300
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Wu Zhangjin <wuzhangjin@...il.com>,
	Ralf Baechle <ralf@...ux-mips.org>, linux-mips@...ux-mips.org,
	Thomas Gleixner <tglx@...utronix.de>,
	Michal Simek <monstr@...str.eu>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] MIPS: Add a high resolution sched_clock() via cnt32_to_63().

Hello.

Ingo Molnar wrote:

>> +config HR_SCHED_CLOCK
>> +	bool "High Resolution sched_clock()"
>> +	depends on CSRC_R4K
>> +	default n
>> +	help
>> +	  This option enables the MIPS c0 count based high resolution
>> +	  sched_clock().
>> +
>> +	  If you need a ns precision timestamp, You are recommended to enable
>> +	  this option. For example, If you are using the Ftrace subsystem to do
>>     

   s/If/if/

>> diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c
>> index e95a3cd..4e52cca 100644
>> --- a/arch/mips/kernel/csrc-r4k.c
>> +++ b/arch/mips/kernel/csrc-r4k.c
>> @@ -6,10 +6,64 @@
>>   * Copyright (C) 2007 by Ralf Baechle
>>   */
>>  #include <linux/clocksource.h>
>> +#include <linux/cnt32_to_63.h>
>> +#include <linux/timer.h>
>>  #include <linux/init.h>
>>  
>>  #include <asm/time.h>
>>  
>> +/*
>> + * MIPS' sched_clock implementation.
>>     
>
> s/MIPS'/MIPS's
>   

   MIPS's is not really a proper English. :-)

WBR, Sergei


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