[PATCH V2 07/10] powerpc/mm: update PTE frag size
From: Aneesh Kumar K.V <hidden>
Date: 2015-11-23 10:35:07
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
Now that we don't track 4k subpage information we can use 2K PTE fragments. Signed-off-by: Aneesh Kumar K.V <redacted> --- arch/powerpc/include/asm/book3s/64/hash-64k.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/hash-64k.h b/arch/powerpc/include/asm/book3s/64/hash-64k.h
index 5062c6d423fd..a28dbfe2baed 100644
--- a/arch/powerpc/include/asm/book3s/64/hash-64k.h
+++ b/arch/powerpc/include/asm/book3s/64/hash-64k.h@@ -39,14 +39,14 @@ */ #define PTE_RPN_SHIFT (30) /* - * we support 8 fragments per PTE page of 64K size. + * we support 32 fragments per PTE page of 64K size. */ -#define PTE_FRAG_NR 8 +#define PTE_FRAG_NR 32 /* * We use a 2K PTE page fragment and another 4K for storing * real_pte_t hash index. Rounding the entire thing to 8K */ -#define PTE_FRAG_SIZE_SHIFT 13 +#define PTE_FRAG_SIZE_SHIFT 11 #define PTE_FRAG_SIZE (1UL << PTE_FRAG_SIZE_SHIFT) /*
--
2.5.0