From: Jorgen Lundman <lundman@lundman.net>
To: linux-mips@linux-mips.org
Subject: Re: [SPAM] flush_cache_page
Date: Mon, 14 Jan 2008 13:19:37 +0900 [thread overview]
Message-ID: <478AE2D9.5040303@lundman.net> (raw)
In-Reply-To: <DF375560-30CA-44EF-A571-437BB4B08D31@27m.se>
Markus Gothe wrote:
> Man, 2.6.15 is like 2-3 years old....
Thank you, that is very useful. And if you can let me know how I do the
signature, and which AES keys I need to encrypt the kernel with to be
able to boot it on the SMP8634 I could upgrade.
But for now, I can not change what the device runs, only try to work
around its limitations.
Lund
>
> On 13 Jan 2008, at 05:55, Jorgen Lundman wrote:
>
>>
>> Due to cache coherence bugs, Fuse has an extra call to work around it;
>>
>> flush_cache_page(vma, cs->addr, page_to_pfn(cs->pg));
>>
>>
>> But my kernel (2.6.15 for mips 4KEc Tangox board) does not have a
>> flush_cache_page().
>>
>> If I use kangox_flush_all() Fuse works rather well, but the
>> performance is abysmal. Can I simulate this call using one of the
>> calls I do have;
>>
>> __flush_dcache_page
>> flush_data_cache_page
>> tangox_flush_cache_all
>> cache_flush
>> kc_flush_cache
>>
>> Or alternatively, does anyone have the source for flush_cache_page()
>> for said CPU?
>>
>>
>>
>> --
>> Jorgen Lundman | <lundman@lundman.net <mailto:lundman@lundman.net>>
>> Unix Administrator | +81 (0)3 -5456-2687 ext 1017 (work)
>> Shibuya-ku, Tokyo | +81 (0)90-5578-8500 (cell)
>> Japan | +81 (0)3 -3375-1767 (home)
>>
>
> _______________________________________
>
> Mr Markus Gothe
> Software Engineer
>
> Phone: +46 (0)13 21 81 20 (ext. 1046)
> Fax: +46 (0)13 21 21 15
> Mobile: +46 (0)73 718 72 80
> Diskettgatan 11, SE-583 35 Linköping, Sweden
> www.27m.com <http://www.27m.com>
>
>
--
Jorgen Lundman | <lundman@lundman.net>
Unix Administrator | +81 (0)3 -5456-2687 ext 1017 (work)
Shibuya-ku, Tokyo | +81 (0)90-5578-8500 (cell)
Japan | +81 (0)3 -3375-1767 (home)
prev parent reply other threads:[~2008-01-14 4:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-13 4:55 flush_cache_page Jorgen Lundman
2008-01-13 15:21 ` [SPAM] flush_cache_page Markus Gothe
2008-01-14 4:19 ` Jorgen Lundman [this message]
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