linux-kernel - Re: flush_kernel_vmap_range() invalidate_kernel_vmap

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Message-ID: <BANLkTimysdkBnr0LEdOsiT+Z3O-w-KO7=g@mail.gmail.com>
Date:	Thu, 19 May 2011 10:05:45 +0530
From:	naveen yadav <yad.naveen@...il.com>
To:	Ralf Baechle <ralf@...ux-mips.org>
Cc:	linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org,
	Christoph Hellwig <hch@....de>
Subject: Re: flush_kernel_vmap_range() invalidate_kernel_vmap_range() API not
 exists for MIPS

Hi Ralf,

Have you got time to look into this issue.

Regards


On Tue, Mar 29, 2011 at 11:24 AM, naveen yadav <yad.naveen@...il.com> wrote:
> I am sorry, Yes they are VIPT,
>
>
> On Fri, Mar 25, 2011 at 10:57 PM, Ralf Baechle <ralf@...ux-mips.org> wrote:
>> On Fri, Mar 25, 2011 at 02:38:13PM +0530, naveen yadav wrote:
>>
>>> We are working on 2.6.35.9 linux kernel on MIPS 34kce core and our
>>> cache is VIVT having cache aliasing .
>>
>> No, they're VIPT unless you successfully modified your 34K core to
>> change it from a less than perfect cache design to the most lunatic
>> cache policy known to man kind ...
>>
>>> When I check the implementation on ARM I can check the implemenation
>>> exists , but there is not similar implementation exists on MIPS.
>>> These API's are used by XFS module:
>>>
>>> static inline void flush_kernel_vmap_range(void *vaddr, int size)
>>> static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
>>> static inline void flush_kernel_dcache_page(struct page *page)
>>
>> A known problem for (too ...) long.  I'll finally take care of it.
>>
>>  Ralf
>>
>
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