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authorLinus Torvalds <torvalds@linux-foundation.org>2009-10-09 13:31:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-10-09 13:31:47 -0700
commit79a6f564401f1d47989e706d47053a650f296966 (patch)
tree933d892e4a23220e2cadb9d972187c0668684821 /arch/blackfin/kernel/time.c
parent7f3143702cc0d433c183d7b361b1316f2dcf8464 (diff)
parent796dada9f5584a677a0a2a1972090bfc538903ff (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: Blackfin: convert to GENERIC_HARDIRQS_NO__DO_IRQ Blackfin: drop all simple-gpio board resources Blackfin: fix framebuffer mmap bug for nommu Blackfin: includecheck fix: mach-bf548, ezkit.c Blackfin: drop cs_change_per_word setting Blackfin: bf533-ezkit: convert to physmap/jedec_probe Blackfin: convert adv7393 resources to new i2c framework Blackfin: fix missed cache config renames Blackfin: cplbinfo: drop d_path() hacks Blackfin: asm/irq.h: pull in mach/anomaly.h for anomaly defines Blackfin: BF51x: add PTP MMR defines Blackfin: mass clean up of copyright/licensing info Blackfin: convert to use arch_gettimeoffset()
Diffstat (limited to 'arch/blackfin/kernel/time.c')
-rw-r--r--arch/blackfin/kernel/time.c63
1 files changed, 2 insertions, 61 deletions
diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c
index adb54aa7d7c..e5069fe6861 100644
--- a/arch/blackfin/kernel/time.c
+++ b/arch/blackfin/kernel/time.c
@@ -81,11 +81,11 @@ time_sched_init(irqreturn_t(*timer_routine) (int, void *))
#endif
}
+#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
/*
* Should return useconds since last timer tick
*/
-#ifndef CONFIG_GENERIC_TIME
-static unsigned long gettimeoffset(void)
+u32 arch_gettimeoffset(void)
{
unsigned long offset;
unsigned long clocks_per_jiffy;
@@ -184,65 +184,6 @@ void __init time_init(void)
time_sched_init(timer_interrupt);
}
-#ifndef CONFIG_GENERIC_TIME
-void do_gettimeofday(struct timeval *tv)
-{
- unsigned long flags;
- unsigned long seq;
- unsigned long usec, sec;
-
- do {
- seq = read_seqbegin_irqsave(&xtime_lock, flags);
- usec = gettimeoffset();
- sec = xtime.tv_sec;
- usec += (xtime.tv_nsec / NSEC_PER_USEC);
- }
- while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
- while (usec >= USEC_PER_SEC) {
- usec -= USEC_PER_SEC;
- sec++;
- }
-
- tv->tv_sec = sec;
- tv->tv_usec = usec;
-}
-EXPORT_SYMBOL(do_gettimeofday);
-
-int do_settimeofday(struct timespec *tv)
-{
- time_t wtm_sec, sec = tv->tv_sec;
- long wtm_nsec, nsec = tv->tv_nsec;
-
- if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
- return -EINVAL;
-
- write_seqlock_irq(&xtime_lock);
- /*
- * This is revolting. We need to set the xtime.tv_usec
- * correctly. However, the value in this location is
- * is value at the last tick.
- * Discover what correction gettimeofday
- * would have done, and then undo it!
- */
- nsec -= (gettimeoffset() * NSEC_PER_USEC);
-
- wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
- wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
- set_normalized_timespec(&xtime, sec, nsec);
- set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
-
- ntp_clear();
-
- write_sequnlock_irq(&xtime_lock);
- clock_was_set();
-
- return 0;
-}
-EXPORT_SYMBOL(do_settimeofday);
-#endif /* !CONFIG_GENERIC_TIME */
-
/*
* Scheduler clock - returns current time in nanosec units.
*/