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feaf7cf1 BB |
1 | #ifndef _ASM_POWERPC_SYNCH_H |
2 | #define _ASM_POWERPC_SYNCH_H | |
88ced031 | 3 | #ifdef __KERNEL__ |
feaf7cf1 | 4 | |
144b9c13 | 5 | #include <linux/stringify.h> |
2d1b2027 | 6 | #include <asm/feature-fixups.h> |
144b9c13 | 7 | |
2d1b2027 KG |
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); | |
12 | ||
13 | static inline void eieio(void) | |
14 | { | |
15 | __asm__ __volatile__ ("eieio" : : : "memory"); | |
16 | } | |
17 | ||
18 | static inline void isync(void) | |
19 | { | |
20 | __asm__ __volatile__ ("isync" : : : "memory"); | |
21 | } | |
22 | #endif /* __ASSEMBLY__ */ | |
feaf7cf1 | 23 | |
2d1b2027 | 24 | #if defined(__powerpc64__) |
feaf7cf1 | 25 | # define LWSYNC lwsync |
2d1b2027 KG |
26 | #elif defined(CONFIG_E500) |
27 | # define LWSYNC \ | |
28 | START_LWSYNC_SECTION(96); \ | |
29 | sync; \ | |
30 | MAKE_LWSYNC_SECTION_ENTRY(96, __lwsync_fixup); | |
feaf7cf1 BB |
31 | #else |
32 | # define LWSYNC sync | |
33 | #endif | |
34 | ||
feaf7cf1 | 35 | #ifdef CONFIG_SMP |
4f629d7d | 36 | #define ISYNC_ON_SMP "\n\tisync\n" |
2d1b2027 | 37 | #define LWSYNC_ON_SMP stringify_in_c(LWSYNC) "\n" |
feaf7cf1 | 38 | #else |
feaf7cf1 | 39 | #define ISYNC_ON_SMP |
144b9c13 | 40 | #define LWSYNC_ON_SMP |
feaf7cf1 BB |
41 | #endif |
42 | ||
88ced031 | 43 | #endif /* __KERNEL__ */ |
feaf7cf1 | 44 | #endif /* _ASM_POWERPC_SYNCH_H */ |