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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-05-03 18:07:01 +0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-05-06 07:32:24 +0400
commit40bd587a88fcd425f489f3d9f0be7daa84014141 (patch)
tree3d6d977fc23cae661ee358b1ad8611ed11611d03 /arch/powerpc/include/asm/mmu-book3e.h
parent77eafe101a65b609b0693ee4eda381f60a4a5bab (diff)
downloadlinux-40bd587a88fcd425f489f3d9f0be7daa84014141.tar.xz
powerpc: Rename slb0_limit() to safe_stack_limit() and add Book3E support
slb0_limit() wasn't a very descriptive name. This changes it along with a comment explaining what it's used for, and provides a 64-bit BookE implementation. 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.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mmu-book3e.h b/arch/powerpc/include/asm/mmu-book3e.h
index ec61e7b998c0..3ea0f9a259d8 100644
--- a/arch/powerpc/include/asm/mmu-book3e.h
+++ b/arch/powerpc/include/asm/mmu-book3e.h
@@ -245,6 +245,10 @@ extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
extern int mmu_linear_psize;
extern int mmu_vmemmap_psize;
+#ifdef CONFIG_PPC64
+extern unsigned long linear_map_top;
+#endif
+
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_POWERPC_MMU_BOOK3E_H_ */