diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-20 19:30:58 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-20 19:30:58 +0300 |
| commit | 1b39e7de5f4110f0dfda32693b968ab7709977ec (patch) | |
| tree | 76cde8070b62733e06a06aee40cc266a1d9dd54f /drivers/cpuidle/governors/menu.c | |
| parent | cd5b27c9e334ff91ec39647957a3bdf75f171938 (diff) | |
| parent | 9becd7c25c61ae7e5b6fbfc3c226b1f23af7638c (diff) | |
| download | linux-rolling-lts.tar.xz | |
Merge v6.12.43linux-rolling-lts
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/cpuidle/governors/menu.c')
| -rw-r--r-- | drivers/cpuidle/governors/menu.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index 97ffadc7e57a..01322a905414 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -153,6 +153,14 @@ static inline int performance_multiplier(unsigned int nr_iowaiters) static DEFINE_PER_CPU(struct menu_device, menu_devices); +static void menu_update_intervals(struct menu_device *data, unsigned int interval_us) +{ + /* Update the repeating-pattern data. */ + data->intervals[data->interval_ptr++] = interval_us; + if (data->interval_ptr >= INTERVALS) + data->interval_ptr = 0; +} + static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev); /* @@ -277,6 +285,14 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev, if (data->needs_update) { menu_update(drv, dev); data->needs_update = 0; + } else if (!dev->last_residency_ns) { + /* + * This happens when the driver rejects the previously selected + * idle state and returns an error, so update the recent + * intervals table to prevent invalid information from being + * used going forward. + */ + menu_update_intervals(data, UINT_MAX); } nr_iowaiters = nr_iowait_cpu(dev->cpu); @@ -546,10 +562,7 @@ static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev) data->correction_factor[data->bucket] = new_factor; - /* update the repeating-pattern data */ - data->intervals[data->interval_ptr++] = ktime_to_us(measured_ns); - if (data->interval_ptr >= INTERVALS) - data->interval_ptr = 0; + menu_update_intervals(data, ktime_to_us(measured_ns)); } /** |