diff options
| author |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-04-08 20:05:49 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-04-08 20:05:49 +0200 |
| commit | 71f4dd34419f46435da717c72e93e9b03ff41a3f (patch) | |
| tree | 6ac2b4f4675c23272d7ff48c8f272dd62acc113f /drivers/cpuidle/governors/menu.c | |
| parent | Merge tag 'cpuidle-v5.13-rc1' of https://git.linaro.org/people/daniel.lezcano/linux (diff) | |
| parent | intel_idle: add Iclelake-D support (diff) | |
| download | linux-dev-71f4dd34419f46435da717c72e93e9b03ff41a3f.tar.xz linux-dev-71f4dd34419f46435da717c72e93e9b03ff41a3f.zip | |
Merge back earlier cpuidle updates for v5.13.
Diffstat (limited to 'drivers/cpuidle/governors/menu.c')
| -rw-r--r-- | drivers/cpuidle/governors/menu.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index b0a7ad566081..c3aa8d6ccee3 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -271,7 +271,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, u64 predicted_ns; u64 interactivity_req; unsigned long nr_iowaiters; - ktime_t delta_next; + ktime_t delta, delta_tick; int i, idx; if (data->needs_update) { @@ -280,7 +280,12 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, } /* determine the expected residency time, round up */ - data->next_timer_ns = tick_nohz_get_sleep_length(&delta_next); + delta = tick_nohz_get_sleep_length(&delta_tick); + if (unlikely(delta < 0)) { + delta = 0; + delta_tick = 0; + } + data->next_timer_ns = delta; nr_iowaiters = nr_iowait_cpu(dev->cpu); data->bucket = which_bucket(data->next_timer_ns, nr_iowaiters); @@ -318,7 +323,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, * state selection. */ if (predicted_ns < TICK_NSEC) - predicted_ns = delta_next; + predicted_ns = data->next_timer_ns; } else { /* * Use the performance multiplier and the user-configurable @@ -377,7 +382,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, * stuck in the shallow one for too long. */ if (drv->states[idx].target_residency_ns < TICK_NSEC && - s->target_residency_ns <= delta_next) + s->target_residency_ns <= delta_tick) idx = i; return idx; @@ -399,7 +404,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, predicted_ns < TICK_NSEC) && !tick_nohz_tick_stopped()) { *stop_tick = false; - if (idx > 0 && drv->states[idx].target_residency_ns > delta_next) { + if (idx > 0 && drv->states[idx].target_residency_ns > delta_tick) { /* * The tick is not going to be stopped and the target * residency of the state to be returned is not within @@ -411,7 +416,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, continue; idx = i; - if (drv->states[i].target_residency_ns <= delta_next) + if (drv->states[i].target_residency_ns <= delta_tick) break; } } |