diff options
author | john stultz <johnstul@us.ibm.com> | 2007-05-06 17:50:34 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 15:12:58 -0400 |
commit | aeecf3142d82414d511135cc85f86caddfb58338 (patch) | |
tree | 46b10252750729120ec15f03aaad773f7da80258 /arch/h8300/kernel/time.c | |
parent | a5f6abd4f7558fea97bc4021fd0eb7dcc5d16a77 (diff) |
Convert h8/300 to generic timekeeping
Currently h8/300 does not implement sub-jiffy timekeeping, so there is no
benefit to having arch specific timekeeping code.
This patch simply removes those functions and enables the generic
timekeeping code.
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/h8300/kernel/time.c')
-rw-r--r-- | arch/h8300/kernel/time.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c index d1ef615ba895..91d3b56ddc68 100644 --- a/arch/h8300/kernel/time.c +++ b/arch/h8300/kernel/time.c | |||
@@ -66,55 +66,3 @@ void time_init(void) | |||
66 | 66 | ||
67 | platform_timer_setup(timer_interrupt); | 67 | platform_timer_setup(timer_interrupt); |
68 | } | 68 | } |
69 | |||
70 | /* | ||
71 | * This version of gettimeofday has near microsecond resolution. | ||
72 | */ | ||
73 | void do_gettimeofday(struct timeval *tv) | ||
74 | { | ||
75 | unsigned long flags; | ||
76 | unsigned long usec, sec; | ||
77 | |||
78 | read_lock_irqsave(&xtime_lock, flags); | ||
79 | usec = 0; | ||
80 | sec = xtime.tv_sec; | ||
81 | usec += (xtime.tv_nsec / 1000); | ||
82 | read_unlock_irqrestore(&xtime_lock, flags); | ||
83 | |||
84 | while (usec >= 1000000) { | ||
85 | usec -= 1000000; | ||
86 | sec++; | ||
87 | } | ||
88 | |||
89 | tv->tv_sec = sec; | ||
90 | tv->tv_usec = usec; | ||
91 | } | ||
92 | |||
93 | EXPORT_SYMBOL(do_gettimeofday); | ||
94 | |||
95 | int do_settimeofday(struct timespec *tv) | ||
96 | { | ||
97 | if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) | ||
98 | return -EINVAL; | ||
99 | |||
100 | write_lock_irq(&xtime_lock); | ||
101 | /* This is revolting. We need to set the xtime.tv_usec | ||
102 | * correctly. However, the value in this location is | ||
103 | * is value at the last tick. | ||
104 | * Discover what correction gettimeofday | ||
105 | * would have done, and then undo it! | ||
106 | */ | ||
107 | while (tv->tv_nsec < 0) { | ||
108 | tv->tv_nsec += NSEC_PER_SEC; | ||
109 | tv->tv_sec--; | ||
110 | } | ||
111 | |||
112 | xtime.tv_sec = tv->tv_sec; | ||
113 | xtime.tv_nsec = tv->tv_nsec; | ||
114 | ntp_clear(); | ||
115 | write_sequnlock_irq(&xtime_lock); | ||
116 | clock_was_set(); | ||
117 | return 0; | ||
118 | } | ||
119 | |||
120 | EXPORT_SYMBOL(do_settimeofday); | ||