Re: [SPAM] flush_cache_page

[Jorgen Lundman <lundman@lundman.net>]

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
> 
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> 
> 

-- 
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)