aboutsummaryrefslogtreecommitdiffstats
path: root/arch/sparc/include/asm/cmpxchg_32.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc/include/asm/cmpxchg_32.h')
-rw-r--r--arch/sparc/include/asm/cmpxchg_32.h27
1 files changed, 0 insertions, 27 deletions
diff --git a/arch/sparc/include/asm/cmpxchg_32.h b/arch/sparc/include/asm/cmpxchg_32.h
index c786b0a92b51..1fae1a02e3c2 100644
--- a/arch/sparc/include/asm/cmpxchg_32.h
+++ b/arch/sparc/include/asm/cmpxchg_32.h
@@ -11,40 +11,13 @@
#ifndef __ARCH_SPARC_CMPXCHG__
#define __ARCH_SPARC_CMPXCHG__
-#include <asm/btfixup.h>
-
-/* This has special calling conventions */
-#ifndef CONFIG_SMP
-BTFIXUPDEF_CALL(void, ___xchg32, void)
-#endif
-
static inline unsigned long xchg_u32(__volatile__ unsigned long *m, unsigned long val)
{
-#ifdef CONFIG_SMP
__asm__ __volatile__("swap [%2], %0"
: "=&r" (val)
: "0" (val), "r" (m)
: "memory");
return val;
-#else
- register unsigned long *ptr asm("g1");
- register unsigned long ret asm("g2");
-
- ptr = (unsigned long *) m;
- ret = val;
-
- /* Note: this is magic and the nop there is
- really needed. */
- __asm__ __volatile__(
- "mov %%o7, %%g4\n\t"
- "call ___f____xchg32\n\t"
- " nop\n\t"
- : "=&r" (ret)
- : "0" (ret), "r" (ptr)
- : "g3", "g4", "g7", "memory", "cc");
-
- return ret;
-#endif
}
extern void __xchg_called_with_bad_pointer(void);