35 static struct dtpm *root;
49 	struct dtpm *dtpm = to_dtpm(pcz);  in get_max_power_range_uw()  local
52 	*max_power_uw = dtpm->power_max - dtpm->power_min;  in get_max_power_range_uw()
58 static int __get_power_uw(struct dtpm *dtpm, u64 *power_uw)  in __get_power_uw()  argument
60 	struct dtpm *child;  in __get_power_uw()
64 	if (dtpm->ops) {  in __get_power_uw()
65 		*power_uw = dtpm->ops->get_power_uw(dtpm);  in __get_power_uw()
71 	list_for_each_entry(child, &dtpm->children, sibling) {  in __get_power_uw()
83 	struct dtpm *dtpm = to_dtpm(pcz);  in get_power_uw()  local
87 	ret = __get_power_uw(dtpm, power_uw);  in get_power_uw()
93 static void __dtpm_rebalance_weight(struct dtpm *dtpm)  in __dtpm_rebalance_weight()  argument
95 	struct dtpm *child;  in __dtpm_rebalance_weight()
97 	list_for_each_entry(child, &dtpm->children, sibling) {  in __dtpm_rebalance_weight()
103 			child->power_max * 1024, dtpm->power_max);  in __dtpm_rebalance_weight()
109 static void __dtpm_sub_power(struct dtpm *dtpm)  in __dtpm_sub_power()  argument
111 	struct dtpm *parent = dtpm->parent;  in __dtpm_sub_power()
114 		parent->power_min -= dtpm->power_min;  in __dtpm_sub_power()
115 		parent->power_max -= dtpm->power_max;  in __dtpm_sub_power()
116 		parent->power_limit -= dtpm->power_limit;  in __dtpm_sub_power()
123 static void __dtpm_add_power(struct dtpm *dtpm)  in __dtpm_add_power()  argument
125 	struct dtpm *parent = dtpm->parent;  in __dtpm_add_power()
128 		parent->power_min += dtpm->power_min;  in __dtpm_add_power()
129 		parent->power_max += dtpm->power_max;  in __dtpm_add_power()
130 		parent->power_limit += dtpm->power_limit;  in __dtpm_add_power()
148 int dtpm_update_power(struct dtpm *dtpm, u64 power_min, u64 power_max)  in dtpm_update_power()  argument
154 	if (power_min == dtpm->power_min && power_max == dtpm->power_max)  in dtpm_update_power()
162 	__dtpm_sub_power(dtpm);  in dtpm_update_power()
164 	dtpm->power_min = power_min;  in dtpm_update_power()
165 	dtpm->power_max = power_max;  in dtpm_update_power()
166 	if (!test_bit(DTPM_POWER_LIMIT_FLAG, &dtpm->flags))  in dtpm_update_power()
167 		dtpm->power_limit = power_max;  in dtpm_update_power()
169 	__dtpm_add_power(dtpm);  in dtpm_update_power()
190 	struct dtpm *dtpm = to_dtpm(pcz);  in dtpm_release_zone()  local
191 	struct dtpm *parent = dtpm->parent;  in dtpm_release_zone()
195 	if (!list_empty(&dtpm->children)) {  in dtpm_release_zone()
201 		list_del(&dtpm->sibling);  in dtpm_release_zone()
203 	__dtpm_sub_power(dtpm);  in dtpm_release_zone()
207 	if (dtpm->ops)  in dtpm_release_zone()
208 		dtpm->ops->release(dtpm);  in dtpm_release_zone()
210 	if (root == dtpm)  in dtpm_release_zone()
213 	kfree(dtpm);  in dtpm_release_zone()
218 static int __get_power_limit_uw(struct dtpm *dtpm, int cid, u64 *power_limit)  in __get_power_limit_uw()  argument
220 	*power_limit = dtpm->power_limit;  in __get_power_limit_uw()
227 	struct dtpm *dtpm = to_dtpm(pcz);  in get_power_limit_uw()  local
231 	ret = __get_power_limit_uw(dtpm, cid, power_limit);  in get_power_limit_uw()
243 static int __set_power_limit_uw(struct dtpm *dtpm, int cid, u64 power_limit)  in __set_power_limit_uw()  argument
245 	struct dtpm *child;  in __set_power_limit_uw()
253 	if (power_limit == dtpm->power_max) {  in __set_power_limit_uw()
254 		clear_bit(DTPM_POWER_LIMIT_FLAG, &dtpm->flags);  in __set_power_limit_uw()
256 		set_bit(DTPM_POWER_LIMIT_FLAG, &dtpm->flags);  in __set_power_limit_uw()
260 		 dtpm->zone.name, power_limit);  in __set_power_limit_uw()
265 	if (dtpm->ops) {  in __set_power_limit_uw()
266 		dtpm->power_limit = dtpm->ops->set_power_uw(dtpm, power_limit);  in __set_power_limit_uw()
268 		dtpm->power_limit = 0;  in __set_power_limit_uw()
270 		list_for_each_entry(child, &dtpm->children, sibling) {  in __set_power_limit_uw()
280 			if (power_limit == dtpm->power_max) {  in __set_power_limit_uw()
282 			} else if (power_limit == dtpm->power_min) {  in __set_power_limit_uw()
299 			dtpm->power_limit += power;  in __set_power_limit_uw()
309 	struct dtpm *dtpm = to_dtpm(pcz);  in set_power_limit_uw()  local
318 	power_limit = clamp_val(power_limit, dtpm->power_min, dtpm->power_max);  in set_power_limit_uw()
320 	ret = __set_power_limit_uw(dtpm, cid, power_limit);  in set_power_limit_uw()
323 		 dtpm->zone.name, dtpm->power_limit, dtpm->power_max);  in set_power_limit_uw()
337 	struct dtpm *dtpm = to_dtpm(pcz);  in get_max_power_uw()  local
340 	*max_power = dtpm->power_max;  in get_max_power_uw()
367 struct dtpm *dtpm_alloc(struct dtpm_ops *ops)  in dtpm_alloc()
369 	struct dtpm *dtpm;  in dtpm_alloc()  local
371 	dtpm = kzalloc(sizeof(*dtpm), GFP_KERNEL);  in dtpm_alloc()
372 	if (dtpm) {  in dtpm_alloc()
373 		INIT_LIST_HEAD(&dtpm->children);  in dtpm_alloc()
374 		INIT_LIST_HEAD(&dtpm->sibling);  in dtpm_alloc()
375 		dtpm->weight = 1024;  in dtpm_alloc()
376 		dtpm->ops = ops;  in dtpm_alloc()
379 	return dtpm;  in dtpm_alloc()
389 void dtpm_unregister(struct dtpm *dtpm)  in dtpm_unregister()  argument
391 	powercap_unregister_zone(pct, &dtpm->zone);  in dtpm_unregister()
393 	pr_info("Unregistered dtpm node '%s'\n", dtpm->zone.name);  in dtpm_unregister()
418 int dtpm_register(const char *name, struct dtpm *dtpm, struct dtpm *parent)  in dtpm_register()  argument
434 	if (!dtpm)  in dtpm_register()
437 	if (dtpm->ops && !(dtpm->ops->set_power_uw &&  in dtpm_register()
438 			   dtpm->ops->get_power_uw &&  in dtpm_register()
439 			   dtpm->ops->release))  in dtpm_register()
442 	pcz = powercap_register_zone(&dtpm->zone, pct, name,  in dtpm_register()
452 		list_add_tail(&dtpm->sibling, &parent->children);  in dtpm_register()
453 		dtpm->parent = parent;  in dtpm_register()
455 		root = dtpm;  in dtpm_register()
458 	__dtpm_add_power(dtpm);  in dtpm_register()
461 		dtpm->zone.name, dtpm->power_min, dtpm->power_max);  in dtpm_register()