x86: make asm/asm.h work for asm code.

This is useful for unifying some pieces of asm code.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 18 insertions, 22 deletions

diff --git a/include/asm-x86/asm.h b/include/asm-x86/asm.h
index 90dec0c23646..70939820c55f 100644
--- a/include/asm-x86/asm.h
+++ b/include/asm-x86/asm.h
@@ -1,33 +1,29 @@
 #ifndef _ASM_X86_ASM_H
 #define _ASM_X86_ASM_H
 
-#ifdef CONFIG_X86_32
-/* 32 bits */
-
-# define _ASM_PTR       " .long "
-# define _ASM_ALIGN     " .balign 4 "
-# define _ASM_MOV_UL    " movl "
-
-# define _ASM_INC       " incl "
-# define _ASM_DEC       " decl "
-# define _ASM_ADD       " addl "
-# define _ASM_SUB       " subl "
-# define _ASM_XADD      " xaddl "
+#ifdef __ASSEMBLY__
+# define __ASM_FORM(x)  x
+#else
+# define __ASM_FORM(x)  " " #x " "
+#endif
 
+#ifdef CONFIG_X86_32
+# define __ASM_SEL(a,b) __ASM_FORM(a)
 #else
-/* 64 bits */
+# define __ASM_SEL(a,b) __ASM_FORM(b)
+#endif
 
-# define _ASM_PTR       " .quad "
-# define _ASM_ALIGN     " .balign 8 "
-# define _ASM_MOV_UL    " movq "
+#define __ASM_SIZE(inst)        __ASM_SEL(inst##l, inst##q)
 
-# define _ASM_INC       " incq "
-# define _ASM_DEC       " decq "
-# define _ASM_ADD       " addq "
-# define _ASM_SUB       " subq "
-# define _ASM_XADD      " xaddq "
+#define _ASM_PTR        __ASM_SEL(.long, .quad)
+#define _ASM_ALIGN      __ASM_SEL(.balign 4, .balign 8)
+#define _ASM_MOV_UL     __ASM_SIZE(mov)
 
-#endif /* CONFIG_X86_32 */
+#define _ASM_INC        __ASM_SIZE(inc)
+#define _ASM_DEC        __ASM_SIZE(dec)
+#define _ASM_ADD        __ASM_SIZE(add)
+#define _ASM_SUB        __ASM_SIZE(sub)
+#define _ASM_XADD       __ASM_SIZE(xadd)
 
 /* Exception table entry */
 # define _ASM_EXTABLE(from,to) \