In arch/ppc/mm/init.c,
the mpc8xx-linux code use map_page(v,p,flags),
to set one memory page to some properities,like _NO_CACHE_PAGE,etc.
raphael.bossek at solutions4linux.de ?? 2000-01-28 17:31:23
??????: linuxppc-embedded at lists.linuxppc.org
?????? ??????????????/????/??????????????/zte_ltd)
?????? Cachable / Non-cachable memory
Hi,
how does Linux specify memory regions as cachable and non-
cachable? It is sometimes required to mark mapped memory
regions from devices as non-cachable by the MMU so the PowerPC
does not tune the write/read accesses.
Is there any function or sample driver code in the mpc8xx-linux
2.2.13 code ?
cu Raphael Bossek - http://www.solutions4linux.de/powerpc.html
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