Maulik Shah 600f55da8d pmdomain: governor: Consider CPU latency tolerance from pm_domain_cpu_gov ... commit 500ba33284 upstream. pm_domain_cpu_gov is selecting a cluster idle state but does not consider latency tolerance of child CPUs. This results in deeper cluster idle state whose latency does not meet latency tolerance requirement. Select deeper idle state only if global and device latency tolerance of all child CPUs meet. Test results on SM8750 with 300 usec PM-QoS on CPU0 which is less than domain idle state entry (2150) + exit (1983) usec latency mentioned in devicetree, demonstrate the issue. # echo 300 > /sys/devices/system/cpu/cpu0/power/pm_qos_resume_latency_us Before: (Usage is incrementing) ====== # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 29817 537 8 270 0 # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 30348 542 8 271 0 After: (Usage is not incrementing due to latency tolerance) ====== # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 39319 626 14 307 0 # cat /sys/kernel/debug/pm_genpd/power-domain-cluster0/idle_states State Time Spent(ms) Usage Rejected Above Below S0 39319 626 14 307 0 Signed-off-by: Maulik Shah <maulik.shah@oss.qualcomm.com> Fixes: e94999688e ("PM / Domains: Add genpd governor for CPUs") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250709-pmdomain_qos-v2-1-976b12257899@oss.qualcomm.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-07-24 08:53:14 +02:00
..
clock_ops.c
common.c
domain_governor.c	pmdomain: governor: Consider CPU latency tolerance from pm_domain_cpu_gov	2025-07-24 08:53:14 +02:00
domain.c	pmdomain: core: Fix error checking in genpd_dev_pm_attach_by_id()	2025-06-19 15:28:36 +02:00
generic_ops.c
main.c	PM: sleep: Fix power.is_suspended cleanup for direct-complete devices	2025-06-19 15:28:34 +02:00
Makefile
power.h	PM: sleep: wakeirq: fix wake irq arming	2023-07-24 09:51:51 +02:00
qos-test.c
qos.c
runtime.c	PM: runtime: fix denying of auto suspend in pm_suspend_timer_fn()	2025-06-27 11:08:52 +01:00
sysfs.c
trace.c	rtc: Extend timeout for waiting for UIP to clear to 1s	2024-01-31 16:18:56 -08:00
wakeirq.c	PM: sleep: wakeirq: fix wake irq warning in system suspend	2024-04-03 15:28:24 +02:00
wakeup_stats.c	driver core: class: remove module * from class_create()	2023-03-17 15:16:33 +01:00
wakeup.c	PM: suspend: Fix pm_suspend_target_state handling for !CONFIG_PM	2023-05-24 18:52:14 +02:00