sh: Make 29/32-bit mode check helper generally available.
Presently __in_29bit_mode() is only defined for the PMB case, but
it's also easily derived from the CONFIG_29BIT and CONFIG_32BIT &&
CONFIG_PMB=n cases.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/addrspace.h b/arch/sh/include/asm/addrspace.h
index 268efd6..446b383 100644
--- a/arch/sh/include/asm/addrspace.h
+++ b/arch/sh/include/asm/addrspace.h
@@ -65,11 +65,5 @@
#define P3_ADDR_MAX P4SEG
#endif
-#ifndef __ASSEMBLY__
-#ifdef CONFIG_PMB
-extern int __in_29bit_mode(void);
-#endif /* CONFIG_PMB */
-#endif /* __ASSEMBLY__ */
-
#endif /* __KERNEL__ */
#endif /* __ASM_SH_ADDRSPACE_H */
diff --git a/arch/sh/include/asm/mmu.h b/arch/sh/include/asm/mmu.h
index e5e8f48..ca7d91e 100644
--- a/arch/sh/include/asm/mmu.h
+++ b/arch/sh/include/asm/mmu.h
@@ -31,6 +31,7 @@
#ifndef __ASSEMBLY__
#include <linux/errno.h>
+#include <linux/threads.h>
/* Default "unsigned long" context */
typedef unsigned long mm_context_id_t[NR_CPUS];
@@ -72,6 +73,7 @@
unsigned long size, unsigned long flags);
void pmb_unmap(unsigned long addr);
int pmb_init(void);
+bool __in_29bit_mode(void);
#else
static inline long pmb_remap(unsigned long virt, unsigned long phys,
unsigned long size, unsigned long flags)
@@ -87,8 +89,14 @@
{
return -ENODEV;
}
-#endif /* CONFIG_PMB */
+#ifdef CONFIG_29BIT
+#define __in_29bit_mode() (1)
+#else
+#define __in_29bit_mode() (0)
+#endif
+
+#endif /* CONFIG_PMB */
#endif /* __ASSEMBLY__ */
#endif /* __MMU_H */
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 32ebd15..491d9d5 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -338,10 +338,3 @@
#endif
#endif /* CONFIG_MEMORY_HOTPLUG */
-
-#ifdef CONFIG_PMB
-int __in_29bit_mode(void)
-{
- return !(ctrl_inl(PMB_PASCR) & PASCR_SE);
-}
-#endif /* CONFIG_PMB */
diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index b796b6c..d318fa6 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -436,6 +436,11 @@
return 0;
}
+bool __in_29bit_mode(void)
+{
+ return (__raw_readl(PMB_PASCR) & PASCR_SE) == 0;
+}
+
static int pmb_seq_show(struct seq_file *file, void *iter)
{
int i;