Linux 2.6.28-rc5
[cris-mirror.git] / arch / powerpc / include / asm / synch.h
blob45963e80f557d2b1108781a6d381e2ab37f6ec31
1 #ifndef _ASM_POWERPC_SYNCH_H
2 #define _ASM_POWERPC_SYNCH_H
3 #ifdef __KERNEL__
5 #include <linux/stringify.h>
6 #include <asm/feature-fixups.h>
8 #ifndef __ASSEMBLY__
9 extern unsigned int __start___lwsync_fixup, __stop___lwsync_fixup;
10 extern void do_lwsync_fixups(unsigned long value, void *fixup_start,
11 void *fixup_end);
13 static inline void eieio(void)
15 __asm__ __volatile__ ("eieio" : : : "memory");
18 static inline void isync(void)
20 __asm__ __volatile__ ("isync" : : : "memory");
22 #endif /* __ASSEMBLY__ */
24 #if defined(__powerpc64__)
25 # define LWSYNC lwsync
26 #elif defined(CONFIG_E500)
27 # define LWSYNC \
28 START_LWSYNC_SECTION(96); \
29 sync; \
30 MAKE_LWSYNC_SECTION_ENTRY(96, __lwsync_fixup);
31 #else
32 # define LWSYNC sync
33 #endif
35 #ifdef CONFIG_SMP
36 #define ISYNC_ON_SMP "\n\tisync\n"
37 #define LWSYNC_ON_SMP stringify_in_c(LWSYNC) "\n"
38 #else
39 #define ISYNC_ON_SMP
40 #define LWSYNC_ON_SMP
41 #endif
43 #endif /* __KERNEL__ */
44 #endif /* _ASM_POWERPC_SYNCH_H */