From 2f2c2679893c963bd90c5e1c0669b97fd87d1c4a Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 23 Oct 2007 14:37:54 +1000 Subject: m68knommu: cleanup m68knommu timer code Reduce the function pointer mess of the m68knommu timer code by calling directly to the local hardware's timer setup, and expose the local common timer interrupt handler to the lower level hardware timer. Ultimately this will save definitions of all these functions across all the platform code to setup the function pointers (which for any given m68knommu CPU family member can be only one set of hardware timer functions). Signed-off-by: Greg Ungerer Signed-off-by: Linus Torvalds --- arch/m68knommu/kernel/time.c | 22 ++++++++-------------- 1 file changed, 8 insertions(+), 14 deletions(-) (limited to 'arch/m68knommu/kernel/time.c') diff --git a/arch/m68knommu/kernel/time.c b/arch/m68knommu/kernel/time.c index 467053da2d0..77e5375a2dd 100644 --- a/arch/m68knommu/kernel/time.c +++ b/arch/m68knommu/kernel/time.c @@ -27,7 +27,6 @@ #define TICK_SIZE (tick_nsec / 1000) - static inline int set_rtc_mmss(unsigned long nowtime) { if (mach_set_clock_mmss) @@ -39,15 +38,11 @@ static inline int set_rtc_mmss(unsigned long nowtime) * timer_interrupt() needs to keep up the real-time clock, * as well as call the "do_timer()" routine every clocktick */ -static irqreturn_t timer_interrupt(int irq, void *dummy) +irqreturn_t arch_timer_interrupt(int irq, void *dummy) { /* last time the cmos clock got updated */ static long last_rtc_update=0; - /* may need to kick the hardware timer */ - if (mach_tick) - mach_tick(); - write_seqlock(&xtime_lock); do_timer(1); @@ -103,10 +98,10 @@ void time_init(void) { unsigned int year, mon, day, hour, min, sec; - extern void arch_gettod(int *year, int *mon, int *day, int *hour, - int *min, int *sec); - - arch_gettod(&year, &mon, &day, &hour, &min, &sec); + if (mach_gettod) + mach_gettod(&year, &mon, &day, &hour, &min, &sec); + else + year = mon = day = hour = min = sec = 0; if ((year += 1900) < 1970) year += 100; @@ -114,7 +109,7 @@ void time_init(void) xtime.tv_nsec = 0; wall_to_monotonic.tv_sec = -xtime.tv_sec; - mach_sched_init(timer_interrupt); + hw_timer_init(); } /* @@ -128,7 +123,7 @@ void do_gettimeofday(struct timeval *tv) do { seq = read_seqbegin_irqsave(&xtime_lock, flags); - usec = mach_gettimeoffset ? mach_gettimeoffset() : 0; + usec = hw_timer_offset(); sec = xtime.tv_sec; usec += (xtime.tv_nsec / 1000); } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); @@ -160,8 +155,7 @@ int do_settimeofday(struct timespec *tv) * Discover what correction gettimeofday * would have done, and then undo it! */ - if (mach_gettimeoffset) - nsec -= (mach_gettimeoffset() * 1000); + nsec -= (hw_timer_offset() * 1000); wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); -- cgit v1.2.3