sh: Assembly friendly __pa and __va definitions
This patch defines ___pa and ___va which return the physical and virtual
address of an address, respectively. These macros are suitable for
calling from assembly because they don't include the C casts required by
__pa and __va.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
diff --git a/arch/sh/include/asm/page.h b/arch/sh/include/asm/page.h
index d71feb3..0152c04 100644
--- a/arch/sh/include/asm/page.h
+++ b/arch/sh/include/asm/page.h
@@ -128,13 +128,18 @@
* added or subtracted as required.
*/
#ifdef CONFIG_PMB
-#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET+__MEMORY_START)
-#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET-__MEMORY_START))
+#define ___pa(x) ((x)-PAGE_OFFSET+__MEMORY_START)
+#define ___va(x) ((x)+PAGE_OFFSET-__MEMORY_START)
#else
-#define __pa(x) ((unsigned long)(x)-PAGE_OFFSET)
-#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
+#define ___pa(x) ((x)-PAGE_OFFSET)
+#define ___va(x) ((x)+PAGE_OFFSET)
#endif
+#ifndef __ASSEMBLY__
+#define __pa(x) ___pa((unsigned long)x)
+#define __va(x) (void *)___va((unsigned long)x)
+#endif /* !__ASSEMBLY__ */
+
#ifdef CONFIG_UNCACHED_MAPPING
#define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + uncached_start)
#define CAC_ADDR(addr) ((addr) - uncached_start + PAGE_OFFSET)