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* Operating system question
@ 2003-09-30 18:53 Rabeeh Khoury
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From: Rabeeh Khoury @ 2003-09-30 18:53 UTC (permalink / raw)
  To: linuxppc-embedded, ppcboot-users


Hi All,

I have a question withregards WIMG MMU settings of page tables / BATs.
Is there any reason why setting the M bit (coherency) on an IO
region (cache inhibited and guarded) ?
Does anyone expect what is the result of doing so ?

I'v seen in the Linux code for PPC that on IO region the M bit is never
set - but what about firmwares ? other operating system ?

Thank you,
Rabeeh


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2003-09-30 18:53 Operating system question Rabeeh Khoury

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