kernel/power/energy_model.c

21  * Mutex serializing the registrations of performance domains and letting
65 DEFINE_EM_DBG_SHOW(performance, performance);
95 	debugfs_create_file("performance", 0444, d, &em_dbg[i],  in em_debug_create_ps()
125 	/* Create the directory of the performance domain */  in em_debug_create_pd()
140 	/* Create a sub-directory for each performance state */  in em_debug_create_pd()
183  * @pd		: EM performance domain for which this must be done
218 	 * Calculate the performance value for each frequency with  in em_init_performance()
225 		table[i].performance = div64_u64(max_cap * table[i].frequency,  in em_init_performance()
236 	/* Compute the cost of each performance state. */  in em_compute_costs()
250 			cost = power_res / table[i].performance;  in em_compute_costs()
271  * @nr_states	: Number of performance states
275  * the efficiency flag for each performance state. When the function finish
340 	/* Build the list of performance states for this performance domain */  in em_create_perf_table()
344 		 * lowest performance state of 'dev' above 'freq' and updates  in em_create_perf_table()
356 		 * higher performance states.  in em_create_perf_table()
491  * em_pd_get() - Return the performance domain for a device
492  * @dev : Device to find the performance domain for
494  * Returns the performance domain to which @dev belongs, or NULL if it doesn't
507  * em_cpu_get() - Return the performance domain for a CPU
508  * @cpu : CPU to find the performance domain for
510  * Returns the performance domain to which @cpu belongs, or NULL if it doesn't
528  * @nr_states	: Number of performance states to register
536  * Create Energy Model tables for a performance domain using the callbacks
543  * If multiple clients register the same performance domain, all but the first
561 	 * Use a mutex to serialize the registration of performance domains and  in em_dev_register_perf_domain()
721  * Adjustment of CPU performance values after boot, when all CPUs capacites
783 		em_max_perf = table[pd->nr_perf_states - 1].performance;  in em_check_capacity_update()
788 		 * and trigger the update for new performance values.  in em_check_capacity_update()
857  * em_update_performance_limits() - Update Energy Model with performance
859  * @pd			: Performance Domain with EM that has to be updated.
864  * performance levels. It takes the minimum and maximum frequency in kHz
865  * and does internal translation to performance levels.