[PATCH v5 6/6] powerpc/8xx: Increase number of slices to 64

2018-02-22 Thread Christophe Leroy
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 
---
 v4: New
 v5: No change

 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 95d532e18092..777d62e40ac0 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_SHIFT28
+#define SLICE_LOW_SHIFT26  /* 64 slices */
 #define SLICE_LOW_TOP  (0x1ull)
 #define SLICE_NUM_LOW  (SLICE_LOW_TOP >> SLICE_LOW_SHIFT)
 #define GET_LOW_SLICE_INDEX(addr)  ((addr) >> SLICE_LOW_SHIFT)
-- 
2.13.3



[PATCH v5 6/6] powerpc/8xx: Increase number of slices to 64

2018-02-22 Thread Christophe Leroy
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 
---
 v4: New
 v5: No change

 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 95d532e18092..777d62e40ac0 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_SHIFT28
+#define SLICE_LOW_SHIFT26  /* 64 slices */
 #define SLICE_LOW_TOP  (0x1ull)
 #define SLICE_NUM_LOW  (SLICE_LOW_TOP >> SLICE_LOW_SHIFT)
 #define GET_LOW_SLICE_INDEX(addr)  ((addr) >> SLICE_LOW_SHIFT)
-- 
2.13.3