Commit 76ea4d8e authored by Lukasz Luba's avatar Lukasz Luba Committed by Viresh Kumar
Browse files

firmware: arm_scmi: Add power_scale_mw_get() interface 



Add a new interface to the existing perf_ops and export the information
about the power values scale.

This would be used by the cpufreq driver and Energy Model framework to
set the performance domains scale: milli-Watts or abstract scale.

Suggested-by: default avatarMorten Rasmussen <morten.rasmussen@arm.com>
Reviewed-by: default avatarCristian Marussi <cristian.marussi@arm.com>
Signed-off-by: default avatarLukasz Luba <lukasz.luba@arm.com>
Acked-by: default avatarSudeep Holla <sudeep.holla@arm.com>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent c250d50f

drivers/firmware/arm_scmi/perf.c

+8 −0
Original line number Diff line number Diff line
@@ -750,6 +750,13 @@ static bool scmi_fast_switch_possible(const struct scmi_handle *handle, 
	return dom->fc_info && dom->fc_info->level_set_addr;

}



static bool scmi_power_scale_mw_get(const struct scmi_handle *handle)

{

	struct scmi_perf_info *pi = handle->perf_priv;



	return pi->power_scale_mw;

}



static const struct scmi_perf_ops perf_ops = {

	.limits_set = scmi_perf_limits_set,

	.limits_get = scmi_perf_limits_get,
@@ -762,6 +769,7 @@ static const struct scmi_perf_ops perf_ops = { 
	.freq_get = scmi_dvfs_freq_get,

	.est_power_get = scmi_dvfs_est_power_get,

	.fast_switch_possible = scmi_fast_switch_possible,

	.power_scale_mw_get = scmi_power_scale_mw_get,

};



static int scmi_perf_set_notify_enabled(const struct scmi_handle *handle,

include/linux/scmi_protocol.h

+1 −0
Original line number Diff line number Diff line
@@ -121,6 +121,7 @@ struct scmi_perf_ops { 
			     unsigned long *rate, unsigned long *power);

	bool (*fast_switch_possible)(const struct scmi_handle *handle,

				     struct device *dev);

	bool (*power_scale_mw_get)(const struct scmi_handle *handle);

};



/**

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