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| author | Paul Mundt <lethal@linux-sh.org> | 2006-10-04 13:21:45 +0900 |
|---|---|---|
| committer | Paul Mundt <pmundt@dysnomia.hsdv.com> | 2006-10-06 15:26:21 +0900 |
| commit | 458821452642fd5dc2377b73cd1323fd4a9653e7 (patch) | |
| tree | 7071b0a85f28c29bd6a2e4c45f38ec6993ff3fbc | |
| parent | 49f19ce401edfff937c448dd74c22497da361889 (diff) | |
| download | op-kernel-dev-458821452642fd5dc2377b73cd1323fd4a9653e7.zip op-kernel-dev-458821452642fd5dc2377b73cd1323fd4a9653e7.tar.gz | |
sh: First step at generic timeofday support.
At the moment we wrap GENERIC_TIME around our existing timer API.
As boards start providing their own clocksources, they're able to
select GENERIC_TIME accordingly and optimize out most of the timer
API.
Once the current timers have been reworked as proper clocksource
drivers, the rest of the place holders for the timer API can go
away and we can flip on GENERIC_TIME unconditionally.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| -rw-r--r-- | arch/sh/Kconfig | 4 | ||||
| -rw-r--r-- | arch/sh/kernel/time.c | 2 | ||||
| -rw-r--r-- | include/asm-sh/timer.h | 4 |
3 files changed, 10 insertions, 0 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index f6a0c44..6a461d4 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -45,6 +45,9 @@ config GENERIC_CALIBRATE_DELAY config GENERIC_IOMAP bool +config GENERIC_TIME + def_bool n + config ARCH_MAY_HAVE_PC_FDC bool @@ -357,6 +360,7 @@ config CPU_HAS_SR_RB endmenu menu "Timer support" +depends on !GENERIC_TIME config SH_TMU bool "TMU timer support" diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c index 450c68f..1fbb83c 100644 --- a/arch/sh/kernel/time.c +++ b/arch/sh/kernel/time.c @@ -47,6 +47,7 @@ unsigned long long __attribute__ ((weak)) sched_clock(void) return (unsigned long long)jiffies * (1000000000 / HZ); } +#ifndef CONFIG_GENERIC_TIME void do_gettimeofday(struct timeval *tv) { unsigned long seq; @@ -99,6 +100,7 @@ int do_settimeofday(struct timespec *tv) return 0; } EXPORT_SYMBOL(do_settimeofday); +#endif /* !CONFIG_GENERIC_TIME */ /* last time the RTC clock got updated */ static long last_rtc_update; diff --git a/include/asm-sh/timer.h b/include/asm-sh/timer.h index c7ab280..ebc78db 100644 --- a/include/asm-sh/timer.h +++ b/include/asm-sh/timer.h @@ -8,7 +8,9 @@ struct sys_timer_ops { int (*init)(void); int (*start)(void); int (*stop)(void); +#ifndef CONFIG_GENERIC_TIME unsigned long (*get_offset)(void); +#endif unsigned long (*get_frequency)(void); }; @@ -24,10 +26,12 @@ struct sys_timer { extern struct sys_timer tmu_timer; extern struct sys_timer *sys_timer; +#ifndef CONFIG_GENERIC_TIME static inline unsigned long get_timer_offset(void) { return sys_timer->ops->get_offset(); } +#endif static inline unsigned long get_timer_frequency(void) { |
