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authorTakashi Iwai <tiwai@suse.de>2021-02-17 21:16:27 +0100
committerTakashi Iwai <tiwai@suse.de>2021-02-17 21:16:27 +0100
commit0c8e97c86b7398281f2224a9d913261d65185f0e (patch)
tree879ad2fc882eff168fda2c720a19095cac6effcc /arch/um/kernel/time.c
parentc3bb2b521944ffbbc8c24b849f81977a9915fb5e (diff)
parent0969db0d8d15caee41cd817154670c38d9ed7f61 (diff)
Merge tag 'asoc-v5.12' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v5.12 Another quiet release in terms of features, though several of the drivers got quite a bit of work and there were a lot of general changes resulting from Morimoto-san's ongoing cleanup work. - As ever, lots of hard work by Morimoto-san cleaning up the code and making it more consistent. - Many improvements in the Intel drivers including a wide range of quirks and bug fixes. - A KUnit testsuite for the topology code. - Support for Ingenic JZ4760(B), Intel AlderLake-P, DT configured nVidia cards, Qualcomm lpass-rx-macro and lpass-tx-macro - Removal of obsolete SIRF prima/atlas, Txx9 and ZTE zx drivers.
Diffstat (limited to 'arch/um/kernel/time.c')
-rw-r--r--arch/um/kernel/time.c50
1 files changed, 31 insertions, 19 deletions
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index f4db89b5b5a6..315248b03941 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -535,6 +535,31 @@ invalid_number:
return 1;
}
+
+static void time_travel_set_start(void)
+{
+ if (time_travel_start_set)
+ return;
+
+ switch (time_travel_mode) {
+ case TT_MODE_EXTERNAL:
+ time_travel_start = time_travel_ext_req(UM_TIMETRAVEL_GET_TOD, -1);
+ /* controller gave us the *current* time, so adjust by that */
+ time_travel_ext_get_time();
+ time_travel_start -= time_travel_time;
+ break;
+ case TT_MODE_INFCPU:
+ case TT_MODE_BASIC:
+ if (!time_travel_start_set)
+ time_travel_start = os_persistent_clock_emulation();
+ break;
+ case TT_MODE_OFF:
+ /* we just read the host clock with os_persistent_clock_emulation() */
+ break;
+ }
+
+ time_travel_start_set = true;
+}
#else /* CONFIG_UML_TIME_TRAVEL_SUPPORT */
#define time_travel_start_set 0
#define time_travel_start 0
@@ -553,6 +578,10 @@ static void time_travel_set_interval(unsigned long long interval)
{
}
+static inline void time_travel_set_start(void)
+{
+}
+
/* fail link if this actually gets used */
extern u64 time_travel_ext_req(u32 op, u64 time);
@@ -731,6 +760,8 @@ void read_persistent_clock64(struct timespec64 *ts)
{
long long nsecs;
+ time_travel_set_start();
+
if (time_travel_mode != TT_MODE_OFF)
nsecs = time_travel_start + time_travel_time;
else
@@ -742,25 +773,6 @@ void read_persistent_clock64(struct timespec64 *ts)
void __init time_init(void)
{
-#ifdef CONFIG_UML_TIME_TRAVEL_SUPPORT
- switch (time_travel_mode) {
- case TT_MODE_EXTERNAL:
- time_travel_start = time_travel_ext_req(UM_TIMETRAVEL_GET_TOD, -1);
- /* controller gave us the *current* time, so adjust by that */
- time_travel_ext_get_time();
- time_travel_start -= time_travel_time;
- break;
- case TT_MODE_INFCPU:
- case TT_MODE_BASIC:
- if (!time_travel_start_set)
- time_travel_start = os_persistent_clock_emulation();
- break;
- case TT_MODE_OFF:
- /* we just read the host clock with os_persistent_clock_emulation() */
- break;
- }
-#endif
-
timer_set_signal_handler();
late_time_init = um_timer_setup;
}