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| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2024-12-28 00:25:04 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2024-12-28 00:25:04 +0100 |
| commit | f802f11b2336b0f5c522c6ba827a013bb0b83826 (patch) | |
| tree | 4544a62caff258f2ca59ce648193ea0900cef94b /drivers/clocksource/hyperv_timer.c | |
| parent | 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8 (diff) | |
| parent | 49e1f0fd0d4cb03a16b8526c4e683e1958f71490 (diff) | |
Merge tag 'i2c-host-fixes-6.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux into i2c/for-current
i2c-host-fixes for v6.13-rc5
- IMX: fixed stop condition in single master mode and added
compatible string for errata adherence.
- Microchip: Added support for proper repeated sends and fixed
unnecessary NAKs on empty messages, which caused false bus
detection.
Diffstat (limited to 'drivers/clocksource/hyperv_timer.c')
| -rw-r--r-- | drivers/clocksource/hyperv_timer.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/clocksource/hyperv_timer.c b/drivers/clocksource/hyperv_timer.c index 99177835cadec..b39dee7b93af0 100644 --- a/drivers/clocksource/hyperv_timer.c +++ b/drivers/clocksource/hyperv_timer.c @@ -27,7 +27,8 @@ #include <asm/mshyperv.h> static struct clock_event_device __percpu *hv_clock_event; -static u64 hv_sched_clock_offset __ro_after_init; +/* Note: offset can hold negative values after hibernation. */ +static u64 hv_sched_clock_offset __read_mostly; /* * If false, we're using the old mechanism for stimer0 interrupts @@ -470,6 +471,17 @@ static void resume_hv_clock_tsc(struct clocksource *arg) hv_set_msr(HV_MSR_REFERENCE_TSC, tsc_msr.as_uint64); } +/* + * Called during resume from hibernation, from overridden + * x86_platform.restore_sched_clock_state routine. This is to adjust offsets + * used to calculate time for hv tsc page based sched_clock, to account for + * time spent before hibernation. + */ +void hv_adj_sched_clock_offset(u64 offset) +{ + hv_sched_clock_offset -= offset; +} + #ifdef HAVE_VDSO_CLOCKMODE_HVCLOCK static int hv_cs_enable(struct clocksource *cs) { |