diff options
Diffstat (limited to 'arch/mips/kernel/time.c')
| -rw-r--r-- | arch/mips/kernel/time.c | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c index 42c94c771af..5e51a2d8f3f 100644 --- a/arch/mips/kernel/time.c +++ b/arch/mips/kernel/time.c @@ -65,9 +65,9 @@ static int null_rtc_set_time(unsigned long sec) return 0; } -unsigned long (*rtc_get_time)(void) = null_rtc_get_time; -int (*rtc_set_time)(unsigned long) = null_rtc_set_time; -int (*rtc_set_mmss)(unsigned long); +unsigned long (*rtc_mips_get_time)(void) = null_rtc_get_time; +int (*rtc_mips_set_time)(unsigned long) = null_rtc_set_time; +int (*rtc_mips_set_mmss)(unsigned long); /* usecs per counter cycle, shifted to left by 32 bits */ @@ -424,6 +424,8 @@ irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) unsigned long j; unsigned int count; + write_seqlock(&xtime_lock); + count = mips_hpt_read(); mips_timer_ack(); @@ -438,22 +440,20 @@ irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) /* * If we have an externally synchronized Linux clock, then update - * CMOS clock accordingly every ~11 minutes. rtc_set_time() has to be + * CMOS clock accordingly every ~11 minutes. rtc_mips_set_time() has to be * called as close as possible to 500 ms before the new second starts. */ - write_seqlock(&xtime_lock); if (ntp_synced() && xtime.tv_sec > last_rtc_update + 660 && (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 && (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) { - if (rtc_set_mmss(xtime.tv_sec) == 0) { + if (rtc_mips_set_mmss(xtime.tv_sec) == 0) { last_rtc_update = xtime.tv_sec; } else { /* do it again in 60 s */ last_rtc_update = xtime.tv_sec - 600; } } - write_sequnlock(&xtime_lock); /* * If jiffies has overflown in this timer_interrupt, we must @@ -496,6 +496,8 @@ irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) } } + write_sequnlock(&xtime_lock); + /* * In UP mode, we call local_timer_interrupt() to do profiling * and process accouting. @@ -563,7 +565,7 @@ asmlinkage void ll_local_timer_interrupt(int irq, struct pt_regs *regs) * b) (optional) calibrate and set the mips_hpt_frequency * (only needed if you intended to use fixed_rate_gettimeoffset * or use cpu counter as timer interrupt source) - * 2) setup xtime based on rtc_get_time(). + * 2) setup xtime based on rtc_mips_get_time(). * 3) choose a appropriate gettimeoffset routine. * 4) calculate a couple of cached variables for later usage * 5) board_timer_setup() - @@ -631,10 +633,10 @@ void __init time_init(void) if (board_time_init) board_time_init(); - if (!rtc_set_mmss) - rtc_set_mmss = rtc_set_time; + if (!rtc_mips_set_mmss) + rtc_mips_set_mmss = rtc_mips_set_time; - xtime.tv_sec = rtc_get_time(); + xtime.tv_sec = rtc_mips_get_time(); xtime.tv_nsec = 0; set_normalized_timespec(&wall_to_monotonic, @@ -770,8 +772,8 @@ void to_tm(unsigned long tim, struct rtc_time *tm) EXPORT_SYMBOL(rtc_lock); EXPORT_SYMBOL(to_tm); -EXPORT_SYMBOL(rtc_set_time); -EXPORT_SYMBOL(rtc_get_time); +EXPORT_SYMBOL(rtc_mips_set_time); +EXPORT_SYMBOL(rtc_mips_get_time); unsigned long long sched_clock(void) { |