Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1#ifndef _ASM_POWERPC_SYNCH_H
2#define _ASM_POWERPC_SYNCH_H
3#ifdef __KERNEL__
4
5#include <linux/stringify.h>
6#include <asm/feature-fixups.h>
7
8#ifndef __ASSEMBLY__
9extern unsigned int __start___lwsync_fixup, __stop___lwsync_fixup;
10extern void do_lwsync_fixups(unsigned long value, void *fixup_start,
11 void *fixup_end);
12
13static inline void eieio(void)
14{
15 __asm__ __volatile__ ("eieio" : : : "memory");
16}
17
18static inline void isync(void)
19{
20 __asm__ __volatile__ ("isync" : : : "memory");
21}
22#endif /* __ASSEMBLY__ */
23
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
34
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
42
43#endif /* __KERNEL__ */
44#endif /* _ASM_POWERPC_SYNCH_H */