malhuda/msm-4.14
1
0
Fork 0
mirror of https://github.com/rd-stuffs/msm-4.14.git synced 2025-02-20 11:45:48 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

lpm-levels: Don't stop the tick if it's not beneficial

Browse Source 
There is no point in stopping the scheduler tick if the expected
idle duration is shorter than the tick period length.

Change-Id: I8d499c9b2dcf1cd3c8401cc2002ee8b485023ff0
Signed-off-by: Alexander Winkowski <dereference23@outlook.com>
Signed-off-by: Richard Raya <rdxzv.dev@gmail.com>
This commit is contained in:
Alexander Winkowski 2022-04-02 14:31:12 +00:00 committed by Richard Raya
parent 374cf03e25
commit 2fed88beb9
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/cpuidle/lpm-levels.c
View File

@ -488,6 +488,14 @@ static bool psci_enter_sleep(struct lpm_cpu *cpu, int idx, bool from_idle)
static int lpm_cpuidle_select(struct cpuidle_driver *drv,
struct cpuidle_device *dev, bool *stop_tick)
{
#ifdef CONFIG_NO_HZ_COMMON
ktime_t delta_next;
s64 duration_ns = tick_nohz_get_sleep_length(&delta_next);
if (duration_ns <= TICK_NSEC)
*stop_tick = false;
#endif
return 0;
}