powerpc/mm: Add support for early ioremap on non-hash 64-bit processors

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This adds some code to do early ioremap's using page tables instead of
bolting entries in the hash table. This will be used by the upcoming
64-bits BookE port.

The patch also changes the test for early vs. late ioremap to use
slab_is_available() instead of our old hackish mem_init_done.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Benjamin Herrenschmidt 2009-07-23 23:15:16 +00:00

parent 1fe1a21005

commit a245067e20

1 changed files with 54 additions and 5 deletions

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arch/powerpc/mm/pgtable_64.c

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