From 32a74949b7337726e76d69f51c48715431126c6c Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 23 Jul 2009 23:15:58 +0000 Subject: 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 --- arch/powerpc/include/asm/mmu-book3e.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/powerpc/include/asm/mmu-book3e.h') diff --git a/arch/powerpc/include/asm/mmu-book3e.h b/arch/powerpc/include/asm/mmu-book3e.h index 6ddbe48d07fa..d74580469361 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__ */ -- cgit