Daniel Lezcano eb82bace89 powercap/drivers/dtpm: Scale the power with the load ... Currently the power consumption is based on the current OPP power assuming the entire performance domain is fully loaded. That gives very gross power estimation and we can do much better by using the load to scale the power consumption. Use the utilization to normalize and scale the power usage over the max possible power. Tested on a rock960 with 2 big CPUS, the power consumption estimation conforms with the expected one. Before this change: ~$ ~/dhrystone -t 1 -l 10000& ~$ cat /sys/devices/virtual/powercap/dtpm/dtpm:0/dtpm:0:1/constraint_0_max_power_uw 2260000 After this change: ~$ ~/dhrystone -t 1 -l 10000& ~$ cat /sys/devices/virtual/powercap/dtpm/dtpm:0/dtpm:0:1/constraint_0_max_power_uw 1130000 ~$ ~/dhrystone -t 2 -l 10000& ~$ cat /sys/devices/virtual/powercap/dtpm/dtpm:0/dtpm:0:1/constraint_0_max_power_uw 2260000 Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://lore.kernel.org/r/20210312130411.29833-5-daniel.lezcano@linaro.org		2021-10-21 16:03:31 +02:00
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dtpm_cpu.c	powercap/drivers/dtpm: Scale the power with the load	2021-10-21 16:03:31 +02:00
dtpm.c	powercap/drivers/dtpm: Use container_of instead of a private data field	2021-10-21 16:03:31 +02:00
idle_inject.c	powercap: include header to fix -Wmissing-prototypes	2020-09-25 16:46:01 +02:00
intel_rapl_common.c	powercap: intel_rapl: Replace deprecated CPU-hotplug functions	2021-08-04 20:13:46 +02:00
intel_rapl_msr.c	powercap: Add Power Limit4 support for Alder Lake SoC	2021-08-25 20:12:16 +02:00
Kconfig	powercap/drivers/dtpm: Add the experimental label to the option description	2021-03-01 17:43:29 +01:00
Makefile	powercap/drivers/dtpm: Add CPU energy model based support	2020-12-22 19:50:40 +01:00
powercap_sys.c	Merge branches 'pm-sleep', 'pm-acpi', 'pm-domains' and 'powercap'	2020-12-15 15:26:14 +01:00