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thermal: devfreq_cooling: remove old power model and use EM

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Remove old power model and use new Energy Model to calculate the power
budget. It drops static + dynamic power calculations and power table
in order to use Energy Model performance domain data. This model
should be easy to use and could find more users. It is also less
complicated to setup the needed structures.

Reviewed-by: Ionela Voinescu <ionela.voinescu@arm.com>
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20201210143014.24685-5-lukasz.luba@arm.com
This commit is contained in:
Lukasz Luba
2020-12-10 14:30:13 +00:00
committed by Daniel Lezcano
parent 84e0d87c99
commit 615510fe13
2 changed files with 97 additions and 227 deletions
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307
drivers/thermal/devfreq_cooling.c
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File diff suppressed because it is too large Load Diff

17
include/linux/devfreq_cooling.h
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@@ -16,17 +16,6 @@
/**
* struct devfreq_cooling_power - Devfreq cooling power ops
* @get_static_power: Take voltage, in mV, and return the static power
* in mW. If NULL, the static power is assumed
* to be 0.
* @get_dynamic_power: Take voltage, in mV, and frequency, in HZ, and
* return the dynamic power draw in mW. If NULL,
* a simple power model is used.
* @dyn_power_coeff: Coefficient for the simple dynamic power model in
* mW/(MHz mV mV).
* If get_dynamic_power() is NULL, then the
* dynamic power is calculated as
* @dyn_power_coeff * frequency * voltage^2
* @get_real_power: When this is set, the framework uses it to ask the
* device driver for the actual power.
* Some devices have more sophisticated methods
@@ -46,14 +35,8 @@
* max total (static + dynamic) power value for each OPP.
*/
struct devfreq_cooling_power {
unsigned long (*get_static_power)(struct devfreq *devfreq,
unsigned long voltage);
unsigned long (*get_dynamic_power)(struct devfreq *devfreq,
unsigned long freq,
unsigned long voltage);
int (*get_real_power)(struct devfreq *df, u32 *power,
unsigned long freq, unsigned long voltage);
unsigned long dyn_power_coeff;
};
#ifdef CONFIG_DEVFREQ_THERMAL