Operating system question
Rabeeh Khoury
rabeeh at il.marvell.com
Wed Oct 1 04:53:12 EST 2003
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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