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Code Issues Releases Wiki Activity

remove system call times & move tick counter to the section mboot

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This commit is contained in:
Stefan Lankes 2015-07-31 22:08:32 +02:00
parent 89b943398e
commit f5ea0e2d69
2 changed files with 1 additions and 28 deletions
hermit
arch/x86/kernel
timer.c
include/hermit
time.h

18
hermit/arch/x86/kernel/timer.c
View file

@ -39,7 +39,7 @@
* This will keep track of how many ticks the system
* has been running for
*/
static volatile uint64_t timer_ticks = 0;
extern volatile uint64_t timer_ticks;
extern uint32_t cpu_freq;
extern int32_t boot_processor;
@ -81,22 +81,6 @@ void check_ticks(void)
}
}
int sys_times(struct tms* buffer, clock_t* clock)
{
if (BUILTIN_EXPECT(!buffer, 0))
return -EINVAL;
if (BUILTIN_EXPECT(!clock, 0))
return -EINVAL;
check_ticks();
memset(buffer, 0x00, sizeof(struct tms));
*clock = buffer->tms_utime = (clock_t) ((timer_ticks - per_core(current_task)->start_tick) * CLOCKS_PER_SEC / TIMER_FREQ);
return 0;
}
uint64_t get_clock_tick(void)
{
return timer_ticks;

11
hermit/include/hermit/time.h
View file

@ -47,11 +47,6 @@ struct tms {
clock_t tms_cstime;
};
#ifndef CLOCKS_PER_SEC
// newlib's default value
#define CLOCKS_PER_SEC 1000
#endif
/** @brief Initialize Timer interrupts
*
* This procedure installs IRQ handlers for timer interrupts
@ -66,12 +61,6 @@ int timer_init(void);
*/
int timer_wait(unsigned int ticks);
/** @brief Determines the time in CLK_TCK's
*
* System call, which returns the value of time in CLK_TCK's
*/
int sys_times(struct tms*, clock_t* clock);
/** @brief Returns the current number of ticks.
* @return Current number of ticks
*/