Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * MIPS64 and compat userspace implementations of gettimeofday()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * and similar.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Copyright (C) 2015 Imagination Technologies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Copyright (C) 2018 ARM Limited
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #if _MIPS_SIM != _MIPS_SIM_ABI64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) int __vdso_clock_gettime(clockid_t clock,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 			 struct old_timespec32 *ts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	return __cvdso_clock_gettime32(clock, ts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #ifdef CONFIG_MIPS_CLOCK_VSYSCALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  * This is behind the ifdef so that we don't provide the symbol when there's no
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  * possibility of there being a usable clocksource, because there's nothing we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)  * can do without it. When libc fails the symbol lookup it should fall back on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)  * the standard syscall path.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 			struct timezone *tz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	return __cvdso_gettimeofday(tv, tz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #endif /* CONFIG_MIPS_CLOCK_VSYSCALL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) int __vdso_clock_getres(clockid_t clock_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 			struct old_timespec32 *res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	return __cvdso_clock_getres_time32(clock_id, res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) int __vdso_clock_gettime64(clockid_t clock,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 			   struct __kernel_timespec *ts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	return __cvdso_clock_gettime(clock, ts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) int __vdso_clock_gettime(clockid_t clock,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 			 struct __kernel_timespec *ts)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	return __cvdso_clock_gettime(clock, ts);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #ifdef CONFIG_MIPS_CLOCK_VSYSCALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)  * This is behind the ifdef so that we don't provide the symbol when there's no
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)  * possibility of there being a usable clocksource, because there's nothing we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)  * can do without it. When libc fails the symbol lookup it should fall back on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)  * the standard syscall path.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) int __vdso_gettimeofday(struct __kernel_old_timeval *tv,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 			struct timezone *tz)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 	return __cvdso_gettimeofday(tv, tz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #endif /* CONFIG_MIPS_CLOCK_VSYSCALL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) int __vdso_clock_getres(clockid_t clock_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 			struct __kernel_timespec *res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 	return __cvdso_clock_getres(clock_id, res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #endif