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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-07-23 23:15:58 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-08-20 10:25:10 +1000
commit32a74949b7337726e76d69f51c48715431126c6c (patch)
tree22383b2b4d568c7fc651e1def000049dde7156c3 /arch/powerpc/include/asm/mmu-book3e.h
parent25d21ad6e799cccd097b9df2a2fefe19a7e1dfcf (diff)
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op-kernel-dev-32a74949b7337726e76d69f51c48715431126c6c.tar.gz
powerpc/mm: Add support for SPARSEMEM_VMEMMAP on 64-bit Book3E
The base TLB support didn't include support for SPARSEMEM_VMEMMAP, though we did carve out some virtual space for it, the necessary support code wasn't there. This implements it by using 16M pages for now, though the page size could easily be changed at runtime if necessary. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/mmu-book3e.h')
-rw-r--r--arch/powerpc/include/asm/mmu-book3e.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mmu-book3e.h b/arch/powerpc/include/asm/mmu-book3e.h
index 6ddbe48..d745804 100644
--- a/arch/powerpc/include/asm/mmu-book3e.h
+++ b/arch/powerpc/include/asm/mmu-book3e.h
@@ -196,6 +196,7 @@ extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
#endif
extern int mmu_linear_psize;
+extern int mmu_vmemmap_psize;
#endif /* !__ASSEMBLY__ */
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