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>
This commit is contained in:
parent
49f19ce401
commit
4588214526
|
@ -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"
|
||||
|
|
|
@ -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;
|
||||
|
|
|
@ -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)
|
||||
{
|
||||
|
|
Loading…
Reference in a new issue