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Subject[PATCH v1 10/13] powerpc/kconfig: define PAGE_SHIFT inside Kconfig
Date
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
arch/powerpc/Kconfig | 7 +++++++
arch/powerpc/include/asm/page.h | 13 ++-----------
2 files changed, 9 insertions(+), 11 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 8be31261aec8..4a81a80d0635 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -711,6 +711,13 @@ config PPC_256K_PAGES

endchoice

+config PPC_PAGE_SHIFT
+ int
+ default 18 if PPC_256K_PAGES
+ default 16 if PPC_64K_PAGES
+ default 14 if PPC_16K_PAGES
+ default 12
+
config THREAD_SHIFT
int "Thread shift" if EXPERT
range 13 15
diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index 9ea903221a9f..d12a55441629 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -20,20 +20,11 @@

/*
* On regular PPC32 page size is 4K (but we support 4K/16K/64K/256K pages
- * on PPC44x). For PPC64 we support either 4K or 64K software
+ * on PPC44x and 4K/16K on 8xx). For PPC64 we support either 4K or 64K software
* page size. When using 64K pages however, whether we are really supporting
* 64K pages in HW or not is irrelevant to those definitions.
*/
-#if defined(CONFIG_PPC_256K_PAGES)
-#define PAGE_SHIFT 18
-#elif defined(CONFIG_PPC_64K_PAGES)
-#define PAGE_SHIFT 16
-#elif defined(CONFIG_PPC_16K_PAGES)
-#define PAGE_SHIFT 14
-#else
-#define PAGE_SHIFT 12
-#endif
-
+#define PAGE_SHIFT CONFIG_PPC_PAGE_SHIFT
#define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT)

#ifndef __ASSEMBLY__
--
2.13.3
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