how to clear the D_cache and I_cache in the MIPS linux ?

how to clear the D_cache and I_cache in the MIPS linux ?

[fredtan]

      I am porting native‐code compilation to a JavaScript engine in the MIPS
platform.After the program 

finished dynamic and transparent binary translation，it first write back the
code into the memory from 

D_CACHE,then invalidate I_CACHE,then run the code. My MIPS does not have
SYNCI instruction,Cache 

instruction is a privilege instruction, the program has no right to use it.
So , What can I do ?

Very grateful for any reply !!!
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Re: how to clear the D_cache and I_cache in the MIPS linux ?

[Arnaud Patard]

fredtan <tanflying@gmail.com> writes:

> D_CACHE,then invalidate I_CACHE,then run the code. My MIPS does not have
> SYNCI instruction,Cache 
>
> instruction is a privilege instruction, the program has no right to use it.
> So , What can I do ?

use cacheflush()

Arnaud

Re: how to clear the D_cache and I_cache in the MIPS linux ?

[Ralf Baechle]

On Wed, Apr 22, 2009 at 12:50:36PM +0200, Arnaud Patard wrote:

> fredtan <tanflying@gmail.com> writes:
> 
> > D_CACHE,then invalidate I_CACHE,then run the code. My MIPS does not have
> > SYNCI instruction,Cache 
> >
> > instruction is a privilege instruction, the program has no right to use it.
> > So , What can I do ?
> 
> use cacheflush()

It is preferable to always use cacheflush().  The plan is to eventually
enhance the cacheflush(3) library function to use SYNCI as applicable for
a particular platform.

  Ralf