[PATCH v4 5/5] powerpc/8xx: Increase number of slices to 64
From: Christophe Leroy
Date: Sat Feb 10 2018 - 07:54:46 EST
On the 8xx, the minimum slice size is the size of the area
covered by a single PMD entry, ie 4M in 4K pages mode and 64M in
16K pages mode.
This patch increases the number of slices from 16 to 64 on the 8xx.
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>
---
v4: New
arch/powerpc/include/asm/nohash/32/slice.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/nohash/32/slice.h b/arch/powerpc/include/asm/nohash/32/slice.h
index bcb4924f7d22..3deaaea89473 100644
--- a/arch/powerpc/include/asm/nohash/32/slice.h
+++ b/arch/powerpc/include/asm/nohash/32/slice.h
@@ -4,7 +4,7 @@
#ifdef CONFIG_PPC_MM_SLICES
-#define SLICE_LOW_SHIFT 28
+#define SLICE_LOW_SHIFT 26 /* 64 slices */
#define SLICE_LOW_TOP (0x100000000ull)
#define SLICE_NUM_LOW (SLICE_LOW_TOP >> SLICE_LOW_SHIFT)
#define GET_LOW_SLICE_INDEX(addr) ((addr) >> SLICE_LOW_SHIFT)
--
2.13.3