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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - arch/s390/include/asm/vdso.h
1 #ifndef __S390_VDSO_H__
2 #define __S390_VDSO_H__
4 /* Default link addresses for the vDSOs */
8 #define VDSO_VERSION_STRING LINUX_2.6.29
13 * Note about the vdso_data and vdso_per_cpu_data structures:
15 * NEVER USE THEM IN USERSPACE CODE DIRECTLY. The layout of the
16 * structure is supposed to be known only to the function in the vdso
17 * itself and may change without notice.
21 __u64 tb_update_count
; /* Timebase atomicity ctr 0x00 */
22 __u64 xtime_tod_stamp
; /* TOD clock for xtime 0x08 */
23 __u64 xtime_clock_sec
; /* Kernel time 0x10 */
24 __u64 xtime_clock_nsec
; /* 0x18 */
25 __u64 xtime_coarse_sec
; /* Coarse kernel time 0x20 */
26 __u64 xtime_coarse_nsec
; /* 0x28 */
27 __u64 wtom_clock_sec
; /* Wall to monotonic clock 0x30 */
28 __u64 wtom_clock_nsec
; /* 0x38 */
29 __u64 wtom_coarse_sec
; /* Coarse wall to monotonic 0x40 */
30 __u64 wtom_coarse_nsec
; /* 0x48 */
31 __u32 tz_minuteswest
; /* Minutes west of Greenwich 0x50 */
32 __u32 tz_dsttime
; /* Type of dst correction 0x54 */
33 __u32 ectg_available
; /* ECTG instruction present 0x58 */
34 __u32 tk_mult
; /* Mult. used for xtime_nsec 0x5c */
35 __u32 tk_shift
; /* Shift used for xtime_nsec 0x60 */
38 struct vdso_per_cpu_data
{
39 __u64 ectg_timer_base
;
43 extern struct vdso_data
*vdso_data
;
46 int vdso_alloc_per_cpu(struct _lowcore
*lowcore
);
47 void vdso_free_per_cpu(struct _lowcore
*lowcore
);
50 #endif /* __ASSEMBLY__ */
51 #endif /* __S390_VDSO_H__ */