1#ifndef __S390_VDSO_H__
 2#define __S390_VDSO_H__
 3
 4/* Default link addresses for the vDSOs */
 5#define VDSO32_LBASE	0
 6#define VDSO64_LBASE	0
 7
 8#define VDSO_VERSION_STRING	LINUX_2.6.29
 9
10#ifndef __ASSEMBLY__
11
12/*
13 * Note about the vdso_data and vdso_per_cpu_data structures:
14 *
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.
18 */
19
20struct vdso_data {
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 wtom_clock_sec;		/* Wall to monotonic clock	0x20 */
26	__u64 wtom_clock_nsec;		/*				0x28 */
27	__u32 tz_minuteswest;		/* Minutes west of Greenwich	0x30 */
28	__u32 tz_dsttime;		/* Type of dst correction	0x34 */
29	__u32 ectg_available;
30	__u32 ntp_mult;			/* NTP adjusted multiplier	0x3C */
 
31};
32
33struct vdso_per_cpu_data {
34	__u64 ectg_timer_base;
35	__u64 ectg_user_time;
36};
37
38extern struct vdso_data *vdso_data;
39
40#ifdef CONFIG_64BIT
41int vdso_alloc_per_cpu(struct _lowcore *lowcore);
42void vdso_free_per_cpu(struct _lowcore *lowcore);
43#endif
44
45#endif /* __ASSEMBLY__ */
46#endif /* __S390_VDSO_H__ */

 1#ifndef __S390_VDSO_H__
 2#define __S390_VDSO_H__
 3
 4/* Default link addresses for the vDSOs */
 5#define VDSO32_LBASE	0
 6#define VDSO64_LBASE	0
 7
 8#define VDSO_VERSION_STRING	LINUX_2.6.29
 9
10#ifndef __ASSEMBLY__
11
12/*
13 * Note about the vdso_data and vdso_per_cpu_data structures:
14 *
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.
18 */
19
20struct vdso_data {
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 wtom_clock_sec;		/* Wall to monotonic clock	0x20 */
26	__u64 wtom_clock_nsec;		/*				0x28 */
27	__u32 tz_minuteswest;		/* Minutes west of Greenwich	0x30 */
28	__u32 tz_dsttime;		/* Type of dst correction	0x34 */
29	__u32 ectg_available;		/* ECTG instruction present	0x38 */
30	__u32 tk_mult;			/* Mult. used for xtime_nsec	0x3c */
31	__u32 tk_shift;			/* Shift used for xtime_nsec	0x40 */
32};
33
34struct vdso_per_cpu_data {
35	__u64 ectg_timer_base;
36	__u64 ectg_user_time;
37};
38
39extern struct vdso_data *vdso_data;
40
41#ifdef CONFIG_64BIT
42int vdso_alloc_per_cpu(struct _lowcore *lowcore);
43void vdso_free_per_cpu(struct _lowcore *lowcore);
44#endif
45
46#endif /* __ASSEMBLY__ */
47#endif /* __S390_VDSO_H__ */