MIPS: TLB support for hugetlbfs.

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The TLB handlers need to check for huge pages and give them special
handling.  Huge pages consist of two contiguous sub-pages of physical
memory.

* Loading entrylo0 and entrylo1 need to be handled specially.

* The page mask must be set for huge pages and then restored after
  writing the TLB entries.

* The PTE for huge pages resides in the PMD, we halt traversal of the
  tables there.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

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David Daney 2009-05-27 17:47:44 -07:00 • committed by Ralf Baechle

parent dd7943920b

commit fd062c847a

2 changed files with 196 additions and 12 deletions

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43

arch/mips/mm/tlb-r4k.c

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165

arch/mips/mm/tlbex.c

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