On Jun 28, 2005, at 2:21 AM, Benjamin Herrenschmidt wrote:
How so ? the linux page table structure allow you to format the PTE and
PMD contents pretty much the way you want ...
Pretty much the way, but not exactly :-)
Paul told me the 8xx has some restrictions about what goes at the "PMD"
level that is a problem for us (is it cache inhibited bit ?) and thus
we
cannot completely do the PMD/PTE thingy,
There are some page control options that would be easier handled at
the pmd boundary. Cache mode is one of them.
-- Dan
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