arch/mips/vdso/vgettimeofday.c

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