CONFIG_HIGHMEM on PPC

[David Edelsohn]

>>>>> Gabriel Paubert writes:

Gabriel> The MM design of which Linus is so proud is actually not well suited to
Gabriel> 6xx/7xx processors. Can't speak about high end IBM processors.

	For better or worse, Linux's hardware abstraction layer is the
IA-32 architecture.  And no, that does not map well to other architectures
without an 3-level (?), forward page table.

David

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