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Date:	Wed, 18 Apr 2007 21:51:58 +0800
From:	Fuxin Zhang <fxzhang@ict.ac.cn>
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To:	Ralf Baechle <ralf@linux-mips.org>
CC:	tiansm@lemote.com, linux-mips@linux-mips.org,
	Fuxin Zhang <zhangfx@lemote.com>
Subject: Re: [PATCH 6/16] define Hit_Invalidate_I to Index_Invalidate_I for
 loongson2
References: <11766507651736-git-send-email-tiansm@lemote.com> <11766507661317-git-send-email-tiansm@lemote.com> <11766507661726-git-send-email-tiansm@lemote.com> <11766507662638-git-send-email-tiansm@lemote.com> <11766507661133-git-send-email-tiansm@lemote.com> <11766507661526-git-send-email-tiansm@lemote.com> <11766507662650-git-send-email-tiansm@lemote.com> <20070418121139.GF3938@linux-mips.org>
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Yes, Loongson2 has no Hit_invalidate_I in fact. And although it has 
4-way icache, one Index_invalidate_I will invalidate all 4 ways of the 
same set.

The usermanual and datasheet can be downloaded from:

http://www.lemote.com/upfiles/godson2e-user-manual-V0.6.pdf


Ralf Baechle wrote:
> On Sun, Apr 15, 2007 at 11:25:55PM +0800, tiansm@lemote.com wrote:
>
>   
>> +#if defined(CONFIG_CPU_LOONGSON2)
>> +#define Hit_Invalidate_I    	0x00
>>     
>
> This #ifdef means Index_Invalidate_I and Hit_Invalidate_I will both be
> defined as zero, is that really correct?
>
> (This is the point where I would really like to have a CPU manual ...)
>
>   
>> +#else
>>  #define Hit_Invalidate_I	0x10
>> +#endif
>>     
>
>   Ralf
>
>
>
>
>