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| author | David Gibson <david@gibson.dropbear.id.au> | 2009-10-26 19:24:31 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-10-30 17:20:58 +1100 |
| commit | d1837cba5d5d5458c09f0a2849db2d3c203cb8e9 (patch) | |
| tree | 144a4eb43ed6b9909133dc1ac0619d813e4cb131 /arch/powerpc/include | |
| parent | a4fe3ce7699bfe1bd88f816b55d42d8fe1dac655 (diff) | |
| download | blackbird-op-linux-d1837cba5d5d5458c09f0a2849db2d3c203cb8e9.tar.gz blackbird-op-linux-d1837cba5d5d5458c09f0a2849db2d3c203cb8e9.zip | |
powerpc/mm: Cleanup initialization of hugepages on powerpc
This patch simplifies the logic used to initialize hugepages on
powerpc. The somewhat oddly named set_huge_psize() is renamed to
add_huge_page_size() and now does all necessary verification of
whether it's given a valid hugepage sizes (instead of just some) and
instantiates the generic hstate structure (but no more).
hugetlbpage_init() now steps through the available pagesizes, checks
if they're valid for hugepages by calling add_huge_page_size() and
initializes the kmem_caches for the hugepage pagetables. This means
we can now eliminate the mmu_huge_psizes array, since we no longer
need to pass the sizing information for the pagetable caches from
set_huge_psize() into hugetlbpage_init()
Determination of the default huge page size is also moved from the
hash code into the general hugepage code.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/page_64.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/page_64.h b/arch/powerpc/include/asm/page_64.h index 3f17b83f55a1..bfc4e027e2ad 100644 --- a/arch/powerpc/include/asm/page_64.h +++ b/arch/powerpc/include/asm/page_64.h @@ -90,7 +90,7 @@ extern unsigned int HPAGE_SHIFT; #define HPAGE_SIZE ((1UL) << HPAGE_SHIFT) #define HPAGE_MASK (~(HPAGE_SIZE - 1)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) -#define HUGE_MAX_HSTATE 3 +#define HUGE_MAX_HSTATE (MMU_PAGE_COUNT-1) #endif /* __ASSEMBLY__ */ |
