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-rw-r--r--arch/arm/kernel/time.c6
-rw-r--r--arch/blackfin/kernel/time.c6
-rw-r--r--arch/cris/arch-v10/kernel/time.c6
-rw-r--r--arch/cris/kernel/time.c11
-rw-r--r--arch/m32r/kernel/time.c4
-rw-r--r--arch/m68k/kernel/time.c16
-rw-r--r--include/linux/time.h4
-rw-r--r--kernel/time/timekeeping.c26
8 files changed, 48 insertions, 31 deletions
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 09be0c3c9069..b0190b41cb33 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -70,7 +70,7 @@ EXPORT_SYMBOL(profile_pc);
#endif
#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
-u32 arch_gettimeoffset(void)
+static u32 arm_gettimeoffset(void)
{
if (system_timer->offset != NULL)
return system_timer->offset() * 1000;
@@ -164,6 +164,10 @@ device_initcall(timer_init_syscore_ops);
void __init time_init(void)
{
+#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+ arch_gettimeoffset = arm_gettimeoffset;
+#endif
+
system_timer = machine_desc->timer;
system_timer->init();
sched_clock_postinit();
diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c
index 2310b249675f..3126b920a4a5 100644
--- a/arch/blackfin/kernel/time.c
+++ b/arch/blackfin/kernel/time.c
@@ -85,7 +85,7 @@ time_sched_init(irqreturn_t(*timer_routine) (int, void *))
/*
* Should return useconds since last timer tick
*/
-u32 arch_gettimeoffset(void)
+static u32 blackfin_gettimeoffset(void)
{
unsigned long offset;
unsigned long clocks_per_jiffy;
@@ -141,6 +141,10 @@ void read_persistent_clock(struct timespec *ts)
void __init time_init(void)
{
+#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+ arch_gettimeoffset = blackfin_gettimeoffset;
+#endif
+
#ifdef CONFIG_RTC_DRV_BFIN
/* [#2663] hack to filter junk RTC values that would cause
* userspace to have to deal with time values greater than
diff --git a/arch/cris/arch-v10/kernel/time.c b/arch/cris/arch-v10/kernel/time.c
index 162892f24a20..fce7c541d70d 100644
--- a/arch/cris/arch-v10/kernel/time.c
+++ b/arch/cris/arch-v10/kernel/time.c
@@ -55,9 +55,9 @@ unsigned long get_ns_in_jiffie(void)
return ns;
}
-unsigned long do_slow_gettimeoffset(void)
+static u32 cris_v10_gettimeoffset(void)
{
- unsigned long count;
+ u32 count;
/* The timer interrupt comes from Etrax timer 0. In order to get
* better precision, we check the current value. It might have
@@ -191,6 +191,8 @@ static struct irqaction irq2 = {
void __init
time_init(void)
{
+ arch_gettimeoffset = cris_v10_gettimeoffset;
+
/* probe for the RTC and read it if it exists
* Before the RTC can be probed the loops_per_usec variable needs
* to be initialized to make usleep work. A better value for
diff --git a/arch/cris/kernel/time.c b/arch/cris/kernel/time.c
index b063c9217b5c..fe6acdabbc8d 100644
--- a/arch/cris/kernel/time.c
+++ b/arch/cris/kernel/time.c
@@ -39,17 +39,6 @@
extern unsigned long loops_per_jiffy; /* init/main.c */
unsigned long loops_per_usec;
-
-#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
-extern unsigned long do_slow_gettimeoffset(void);
-static unsigned long (*do_gettimeoffset)(void) = do_slow_gettimeoffset;
-
-u32 arch_gettimeoffset(void)
-{
- return do_gettimeoffset();
-}
-#endif
-
int set_rtc_mmss(unsigned long nowtime)
{
D(printk(KERN_DEBUG "set_rtc_mmss(%lu)\n", nowtime));
diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c
index 84dd04048db9..1a15f81ea1bd 100644
--- a/arch/m32r/kernel/time.c
+++ b/arch/m32r/kernel/time.c
@@ -57,7 +57,7 @@ extern void smp_local_timer_interrupt(void);
static unsigned long latch;
-u32 arch_gettimeoffset(void)
+static u32 m32r_gettimeoffset(void)
{
unsigned long elapsed_time = 0; /* [us] */
@@ -165,6 +165,8 @@ void read_persistent_clock(struct timespec *ts)
void __init time_init(void)
{
+ arch_gettimeoffset = m32r_gettimeoffset;
+
#if defined(CONFIG_CHIP_M32102) || defined(CONFIG_CHIP_XNUX2) \
|| defined(CONFIG_CHIP_VDEC2) || defined(CONFIG_CHIP_M32700) \
|| defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 5d0bcaad2e55..c2994c8c30d5 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -80,14 +80,9 @@ void read_persistent_clock(struct timespec *ts)
}
}
-void __init time_init(void)
-{
- mach_sched_init(timer_interrupt);
-}
-
#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
-u32 arch_gettimeoffset(void)
+static u32 m68k_gettimeoffset(void)
{
return mach_gettimeoffset() * 1000;
}
@@ -106,3 +101,12 @@ static int __init rtc_init(void)
module_init(rtc_init);
#endif /* CONFIG_ARCH_USES_GETTIMEOFFSET */
+
+void __init time_init(void)
+{
+#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+ arch_gettimeoffset = m68k_gettimeoffset;
+#endif
+
+ mach_sched_init(timer_interrupt);
+}
diff --git a/include/linux/time.h b/include/linux/time.h
index 4d358e9d10f1..05e32a72103c 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -142,9 +142,7 @@ void timekeeping_inject_sleeptime(struct timespec *delta);
* finer then tick granular time.
*/
#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
-extern u32 arch_gettimeoffset(void);
-#else
-static inline u32 arch_gettimeoffset(void) { return 0; }
+extern u32 (*arch_gettimeoffset)(void);
#endif
extern void do_gettimeofday(struct timeval *tv);
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index cbc6acb0db3f..8ed934601587 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -135,6 +135,20 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
}
/* Timekeeper helper functions. */
+
+#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET
+u32 (*arch_gettimeoffset)(void);
+
+u32 get_arch_timeoffset(void)
+{
+ if (likely(arch_gettimeoffset))
+ return arch_gettimeoffset();
+ return 0;
+}
+#else
+static inline u32 get_arch_timeoffset(void) { return 0; }
+#endif
+
static inline s64 timekeeping_get_ns(struct timekeeper *tk)
{
cycle_t cycle_now, cycle_delta;
@@ -151,8 +165,8 @@ static inline s64 timekeeping_get_ns(struct timekeeper *tk)
nsec = cycle_delta * tk->mult + tk->xtime_nsec;
nsec >>= tk->shift;
- /* If arch requires, add in gettimeoffset() */
- return nsec + arch_gettimeoffset();
+ /* If arch requires, add in get_arch_timeoffset() */
+ return nsec + get_arch_timeoffset();
}
static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk)
@@ -171,8 +185,8 @@ static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk)
/* convert delta to nanoseconds. */
nsec = clocksource_cyc2ns(cycle_delta, clock->mult, clock->shift);
- /* If arch requires, add in gettimeoffset() */
- return nsec + arch_gettimeoffset();
+ /* If arch requires, add in get_arch_timeoffset() */
+ return nsec + get_arch_timeoffset();
}
static RAW_NOTIFIER_HEAD(pvclock_gtod_chain);
@@ -254,8 +268,8 @@ static void timekeeping_forward_now(struct timekeeper *tk)
tk->xtime_nsec += cycle_delta * tk->mult;
- /* If arch requires, add in gettimeoffset() */
- tk->xtime_nsec += (u64)arch_gettimeoffset() << tk->shift;
+ /* If arch requires, add in get_arch_timeoffset() */
+ tk->xtime_nsec += (u64)get_arch_timeoffset() << tk->shift;
tk_normalize_xtime(tk);