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| author |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-07-28 11:59:34 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-08-20 10:25:06 +1000 |
| commit | 57e2a99f74b0d3720c97a6aadb57ae6aad3c61ea (patch) | |
| tree | 4268a98ad222dbcf790749aed52417eb0a3a2a35 /arch/powerpc/mm | |
| parent | powerpc: Add SPR definitions for new 64-bit BookE (diff) | |
| download | linux-dev-57e2a99f74b0d3720c97a6aadb57ae6aad3c61ea.tar.xz linux-dev-57e2a99f74b0d3720c97a6aadb57ae6aad3c61ea.zip | |
powerpc: Add memory management headers for new 64-bit BookE
This adds the PTE and pgtable format definitions, along with changes
to the kernel memory map and other definitions related to implementing
support for 64-bit Book3E. This also shields some asm-offset bits that
are currently only relevant on 32-bit
We also move the definition of the "linux" page size constants to
the common mmu.h file and add a few sizes that are relevant to
embedded processors.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/hugetlbpage.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index c46ef2ffa3d9..90df6ffe3a43 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -57,8 +57,10 @@ unsigned int mmu_huge_psizes[MMU_PAGE_COUNT] = { }; /* initialize all to 0 */ #define HUGEPTE_CACHE_NAME(psize) (huge_pgtable_cache_name[psize]) static const char *huge_pgtable_cache_name[MMU_PAGE_COUNT] = { - "unused_4K", "hugepte_cache_64K", "unused_64K_AP", - "hugepte_cache_1M", "hugepte_cache_16M", "hugepte_cache_16G" + [MMU_PAGE_64K] = "hugepte_cache_64K", + [MMU_PAGE_1M] = "hugepte_cache_1M", + [MMU_PAGE_16M] = "hugepte_cache_16M", + [MMU_PAGE_16G] = "hugepte_cache_16G", }; /* Flag to mark huge PD pointers. This means pmd_bad() and pud_bad() @@ -700,6 +702,8 @@ static void __init set_huge_psize(int psize) if (mmu_huge_psizes[psize] || mmu_psize_defs[psize].shift == PAGE_SHIFT) return; + if (WARN_ON(HUGEPTE_CACHE_NAME(psize) == NULL)) + return; hugetlb_add_hstate(mmu_psize_defs[psize].shift - PAGE_SHIFT); switch (mmu_psize_defs[psize].shift) { |