| Martin Schwidefsky | b020632 | 2008-12-25 13:38:36 +0100 | [diff] [blame] | 1 | #ifndef __S390_VDSO_H__ |
| 2 | #define __S390_VDSO_H__ |
| 3 | |
| 4 | #ifdef __KERNEL__ |
| 5 | |
| 6 | /* Default link addresses for the vDSOs */ |
| 7 | #define VDSO32_LBASE 0 |
| 8 | #define VDSO64_LBASE 0 |
| 9 | |
| 10 | #define VDSO_VERSION_STRING LINUX_2.6.26 |
| 11 | |
| 12 | #ifndef __ASSEMBLY__ |
| 13 | |
| 14 | /* |
| 15 | * Note about this structure: |
| 16 | * |
| 17 | * NEVER USE THIS IN USERSPACE CODE DIRECTLY. The layout of this |
| 18 | * structure is supposed to be known only to the function in the vdso |
| 19 | * itself and may change without notice. |
| 20 | */ |
| 21 | |
| 22 | struct vdso_data { |
| 23 | __u64 tb_update_count; /* Timebase atomicity ctr 0x00 */ |
| 24 | __u64 xtime_tod_stamp; /* TOD clock for xtime 0x08 */ |
| 25 | __u64 xtime_clock_sec; /* Kernel time 0x10 */ |
| 26 | __u64 xtime_clock_nsec; /* 0x18 */ |
| 27 | __u64 wtom_clock_sec; /* Wall to monotonic clock 0x20 */ |
| 28 | __u64 wtom_clock_nsec; /* 0x28 */ |
| 29 | __u32 tz_minuteswest; /* Minutes west of Greenwich 0x30 */ |
| 30 | __u32 tz_dsttime; /* Type of dst correction 0x34 */ |
| 31 | }; |
| 32 | |
| 33 | extern struct vdso_data *vdso_data; |
| 34 | |
| 35 | #endif /* __ASSEMBLY__ */ |
| 36 | |
| 37 | #endif /* __KERNEL__ */ |
| 38 | |
| 39 | #endif /* __S390_VDSO_H__ */ |