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cpuidle: Respect the CPU system wakeup QoS limit for cpuidle 

The CPU system wakeup QoS limit must be respected for the regular cpuidle
state selection. Therefore, let's extend the common governor helper
cpuidle_governor_latency_req(), to take the constraint into account.

Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Kevin Hilman (TI) <khilman@baylibre.com>
Tested-by: Kevin Hilman (TI) <khilman@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://patch.msgid.link/20251125112650.329269-6-ulf.hansson@linaro.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
pull/1354/merge
Ulf Hansson 2025-11-25 12:26:46 +01:00 committed by Rafael J. Wysocki
parent 99b42445f4
commit 2b8d594742
1 changed files with 4 additions and 0 deletions
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4
drivers/cpuidle/governor.c
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@ -111,6 +111,10 @@ s64 cpuidle_governor_latency_req(unsigned int cpu)
struct device *device = get_cpu_device(cpu); struct device *device = get_cpu_device(cpu);
int device_req = dev_pm_qos_raw_resume_latency(device); int device_req = dev_pm_qos_raw_resume_latency(device);
int global_req = cpu_latency_qos_limit(); int global_req = cpu_latency_qos_limit();
int global_wake_req = cpu_wakeup_latency_qos_limit();
if (global_req > global_wake_req)
global_req = global_wake_req;
if (device_req > global_req) if (device_req > global_req)
device_req = global_req; device_req = global_req;