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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef ASM_VDSO_GETTIMEOFDAY_H
#define ASM_VDSO_GETTIMEOFDAY_H
#define VDSO_HAS_TIME 1
#define VDSO_HAS_CLOCK_GETRES 1
#include <asm/syscall.h>
#include <asm/timex.h>
#include <asm/unistd.h>
#include <linux/compiler.h>
#define vdso_calc_delta __arch_vdso_calc_delta
static __always_inline u64 __arch_vdso_calc_delta(u64 cycles, u64 last, u64 mask, u32 mult)
{
return (cycles - last) * mult;
}
static __always_inline const struct vdso_data *__arch_get_vdso_data(void)
{
return _vdso_data;
}
static inline u64 __arch_get_hw_counter(s32 clock_mode, const struct vdso_data *vd)
{
u64 adj, now;
now = get_tod_clock();
adj = vd->arch_data.tod_steering_end - now;
if (unlikely((s64) adj > 0))
now += (vd->arch_data.tod_steering_delta < 0) ? (adj >> 15) : -(adj >> 15);
return now;
}
static __always_inline
long clock_gettime_fallback(clockid_t clkid, struct __kernel_timespec *ts)
{
return syscall2(__NR_clock_gettime, (long)clkid, (long)ts);
}
static __always_inline
long gettimeofday_fallback(register struct __kernel_old_timeval *tv,
register struct timezone *tz)
{
return syscall2(__NR_gettimeofday, (long)tv, (long)tz);
}
static __always_inline
long clock_getres_fallback(clockid_t clkid, struct __kernel_timespec *ts)
{
return syscall2(__NR_clock_getres, (long)clkid, (long)ts);
}
#ifdef CONFIG_TIME_NS
static __always_inline
const struct vdso_data *__arch_get_timens_vdso_data(const struct vdso_data *vd)
{
return _timens_data;
}
#endif
#endif
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