1 #ifndef _ASM_X86_VSYSCALL_H
2 #define _ASM_X86_VSYSCALL_H
10 #define VSYSCALL_START (-10UL << 20)
11 #define VSYSCALL_SIZE 1024
12 #define VSYSCALL_END (-2UL << 20)
13 #define VSYSCALL_MAPPED_PAGES 1
14 #define VSYSCALL_ADDR(vsyscall_nr) (VSYSCALL_START+VSYSCALL_SIZE*(vsyscall_nr))
17 #include <linux/seqlock.h>
19 /* Definitions for CONFIG_GENERIC_TIME definitions */
20 #define __vsyscall_fn \
21 __attribute__ ((unused, __section__(".vsyscall_fn"))) notrace
23 #define VGETCPU_RDTSCP 1
26 /* kernel space (writeable) */
27 extern int vgetcpu_mode;
28 extern struct timezone sys_tz;
32 extern void map_vsyscall(void);
34 #endif /* __KERNEL__ */
36 #endif /* _ASM_X86_VSYSCALL_H */