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authorGreg Ungerer <gerg@uclinux.org>2011-10-14 14:36:41 +1000
committerGreg Ungerer <gerg@uclinux.org>2011-12-30 10:20:20 +1000
commit2c9b82adb5ea65745d5d73d97bb0e1cc16cba4a0 (patch)
tree23951a605a1e5fe000010d99312dc79f048bdcb7
parent78ccdffc937319f4f7ffc13684c114100c727c21 (diff)
m68k: add TASK definitions for ColdFires running with MMU
Add appropriate TASK_SIZE and TASK_UNMAPPED_BASE definitions for running on ColdFire V4e cores with MMU enabled. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Matt Waddel <mwaddel@yahoo.com> Acked-by: Kurt Mahan <kmahan@xmission.com>
-rw-r--r--arch/m68k/include/asm/processor.h16
1 files changed, 10 insertions, 6 deletions
diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h
index 7ec06096a6f..46460fa15d5 100644
--- a/arch/m68k/include/asm/processor.h
+++ b/arch/m68k/include/asm/processor.h
@@ -48,10 +48,12 @@ static inline void wrusp(unsigned long usp)
* so don't change it unless you know what you are doing.
*/
#ifdef CONFIG_MMU
-#ifndef CONFIG_SUN3
-#define TASK_SIZE (0xF0000000UL)
-#else
+#if defined(CONFIG_COLDFIRE)
+#define TASK_SIZE (0xC0000000UL)
+#elif defined(CONFIG_SUN3)
#define TASK_SIZE (0x0E000000UL)
+#else
+#define TASK_SIZE (0xF0000000UL)
#endif
#else
#define TASK_SIZE (0xFFFFFFFFUL)
@@ -66,10 +68,12 @@ static inline void wrusp(unsigned long usp)
* space during mmap's.
*/
#ifdef CONFIG_MMU
-#ifndef CONFIG_SUN3
-#define TASK_UNMAPPED_BASE 0xC0000000UL
-#else
+#if defined(CONFIG_COLDFIRE)
+#define TASK_UNMAPPED_BASE 0x60000000UL
+#elif defined(CONFIG_SUN3)
#define TASK_UNMAPPED_BASE 0x0A000000UL
+#else
+#define TASK_UNMAPPED_BASE 0xC0000000UL
#endif
#define TASK_UNMAPPED_ALIGN(addr, off) PAGE_ALIGN(addr)
#else