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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