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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-04-14 15:36:28 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-04-14 15:37:27 +0200 |
| commit | b6112ccbff5ec580d46b584ecc3c3a773b830da2 (patch) | |
| tree | 71553f09a2acfedec85f3c29a1c65e0a257001fb /arch/s390/include/asm/timex.h | |
| parent | [S390] cpu hotplug and accounting values (diff) | |
| download | linux-b6112ccbff5ec580d46b584ecc3c3a773b830da2.tar.xz linux-b6112ccbff5ec580d46b584ecc3c3a773b830da2.zip | |
[S390] add read_persistent_clock
Add a read_persistent_clock function that does not just return 0.
Since timekeeping_init calls the function before time_init has been
called move reset_tod_clock to early.c to make sure that the TOD
clock is running when read_persistent_clock is invoked.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/timex.h')
| -rw-r--r-- | arch/s390/include/asm/timex.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index d744c3d62de5..cc21e3e20fd7 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -11,6 +11,9 @@ #ifndef _ASM_S390_TIMEX_H #define _ASM_S390_TIMEX_H +/* The value of the TOD clock for 1.1.1970. */ +#define TOD_UNIX_EPOCH 0x7d91048bca000000ULL + /* Inline functions for clock register access. */ static inline int set_clock(__u64 time) { @@ -85,4 +88,6 @@ int get_sync_clock(unsigned long long *clock); void init_cpu_timer(void); unsigned long long monotonic_clock(void); +extern u64 sched_clock_base_cc; + #endif |