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| author | Paul Mackerras <paulus@samba.org> | 2008-05-16 23:13:42 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-05-16 23:13:42 +1000 |
| commit | fcff474ea5cb17ff015aa40e92ed86fede41f1e2 (patch) | |
| tree | a99c0e14daaf31cb078812fb2fbc6abadfcd738f /arch/powerpc/mm/hash_utils_64.c | |
| parent | 541b2755c2ef7dd2242ac606c115daa11e43ef69 (diff) | |
| parent | f26a3988917913b3d11b2bd741601a2c64ab9204 (diff) | |
| download | blackbird-op-linux-fcff474ea5cb17ff015aa40e92ed86fede41f1e2.tar.gz blackbird-op-linux-fcff474ea5cb17ff015aa40e92ed86fede41f1e2.zip | |
Merge branch 'linux-2.6' into powerpc-next
Diffstat (limited to 'arch/powerpc/mm/hash_utils_64.c')
| -rw-r--r-- | arch/powerpc/mm/hash_utils_64.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 05f955f8df35..bf5b6d7ed30f 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -94,6 +94,9 @@ unsigned long htab_hash_mask; int mmu_linear_psize = MMU_PAGE_4K; int mmu_virtual_psize = MMU_PAGE_4K; int mmu_vmalloc_psize = MMU_PAGE_4K; +#ifdef CONFIG_SPARSEMEM_VMEMMAP +int mmu_vmemmap_psize = MMU_PAGE_4K; +#endif int mmu_io_psize = MMU_PAGE_4K; int mmu_kernel_ssize = MMU_SEGSIZE_256M; int mmu_highuser_ssize = MMU_SEGSIZE_256M; @@ -387,11 +390,32 @@ static void __init htab_init_page_sizes(void) } #endif /* CONFIG_PPC_64K_PAGES */ +#ifdef CONFIG_SPARSEMEM_VMEMMAP + /* We try to use 16M pages for vmemmap if that is supported + * and we have at least 1G of RAM at boot + */ + if (mmu_psize_defs[MMU_PAGE_16M].shift && + lmb_phys_mem_size() >= 0x40000000) + mmu_vmemmap_psize = MMU_PAGE_16M; + else if (mmu_psize_defs[MMU_PAGE_64K].shift) + mmu_vmemmap_psize = MMU_PAGE_64K; + else + mmu_vmemmap_psize = MMU_PAGE_4K; +#endif /* CONFIG_SPARSEMEM_VMEMMAP */ + printk(KERN_DEBUG "Page orders: linear mapping = %d, " - "virtual = %d, io = %d\n", + "virtual = %d, io = %d" +#ifdef CONFIG_SPARSEMEM_VMEMMAP + ", vmemmap = %d" +#endif + "\n", mmu_psize_defs[mmu_linear_psize].shift, mmu_psize_defs[mmu_virtual_psize].shift, - mmu_psize_defs[mmu_io_psize].shift); + mmu_psize_defs[mmu_io_psize].shift +#ifdef CONFIG_SPARSEMEM_VMEMMAP + ,mmu_psize_defs[mmu_vmemmap_psize].shift +#endif + ); #ifdef CONFIG_HUGETLB_PAGE /* Init large page size. Currently, we pick 16M or 1M depending |
