Hi Lin KJ,

Lin KJ wrote:
> I am trying to port the linux-2.6.24 on my arm940 based board.
> I am a little confused by the cache flush routines in the proc-arm940.S.
> I found that all the cache flush routines are doing flushing all.
> Even it needs only to flush a range of cache entries, for example, 
> "arm940_flush_user_cache_range()".
> Why not just clean the range of cache entries we needed?
> Does it concern with the "MMU" issue?

I don't know why it is that way. But I can't see why it would
be specific to non-MMU.

Regards
Greg



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Greg Ungerer  --  Chief Software Dude       EMAIL:     [EMAIL PROTECTED]
Secure Computing Corporation                PHONE:       +61 7 3435 2888
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