198 static void sugov_get_util(struct sugov_cpu *sg_cpu, unsigned long boost)  in sugov_get_util()  argument
200 	unsigned long min, max, util = scx_cpuperf_target(sg_cpu->cpu);  in sugov_get_util()
203 		util += cpu_util_cfs_boost(sg_cpu->cpu);  in sugov_get_util()
204 	util = effective_cpu_util(sg_cpu->cpu, util, &min, &max);  in sugov_get_util()
206 	sg_cpu->bw_min = min;  in sugov_get_util()
207 	sg_cpu->util = sugov_effective_cpu_perf(sg_cpu->cpu, util, min, max);  in sugov_get_util()
221 static bool sugov_iowait_reset(struct sugov_cpu *sg_cpu, u64 time,  in sugov_iowait_reset()  argument
224 	s64 delta_ns = time - sg_cpu->last_update;  in sugov_iowait_reset()
230 	sg_cpu->iowait_boost = set_iowait_boost ? IOWAIT_BOOST_MIN : 0;  in sugov_iowait_reset()
231 	sg_cpu->iowait_boost_pending = set_iowait_boost;  in sugov_iowait_reset()
250 static void sugov_iowait_boost(struct sugov_cpu *sg_cpu, u64 time,  in sugov_iowait_boost()  argument
256 	if (sg_cpu->iowait_boost &&  in sugov_iowait_boost()
257 	    sugov_iowait_reset(sg_cpu, time, set_iowait_boost))  in sugov_iowait_boost()
265 	if (sg_cpu->iowait_boost_pending)  in sugov_iowait_boost()
267 	sg_cpu->iowait_boost_pending = true;  in sugov_iowait_boost()
270 	if (sg_cpu->iowait_boost) {  in sugov_iowait_boost()
271 		sg_cpu->iowait_boost =  in sugov_iowait_boost()
272 			min_t(unsigned int, sg_cpu->iowait_boost << 1, SCHED_CAPACITY_SCALE);  in sugov_iowait_boost()
277 	sg_cpu->iowait_boost = IOWAIT_BOOST_MIN;  in sugov_iowait_boost()
298 static unsigned long sugov_iowait_apply(struct sugov_cpu *sg_cpu, u64 time,  in sugov_iowait_apply()  argument
302 	if (!sg_cpu->iowait_boost)  in sugov_iowait_apply()
306 	if (sugov_iowait_reset(sg_cpu, time, false))  in sugov_iowait_apply()
309 	if (!sg_cpu->iowait_boost_pending) {  in sugov_iowait_apply()
313 		sg_cpu->iowait_boost >>= 1;  in sugov_iowait_apply()
314 		if (sg_cpu->iowait_boost < IOWAIT_BOOST_MIN) {  in sugov_iowait_apply()
315 			sg_cpu->iowait_boost = 0;  in sugov_iowait_apply()
320 	sg_cpu->iowait_boost_pending = false;  in sugov_iowait_apply()
326 	return (sg_cpu->iowait_boost * max_cap) >> SCHED_CAPACITY_SHIFT;  in sugov_iowait_apply()
330 static bool sugov_hold_freq(struct sugov_cpu *sg_cpu)  in sugov_hold_freq()  argument
344 	if (uclamp_rq_is_capped(cpu_rq(sg_cpu->cpu)))  in sugov_hold_freq()
351 	idle_calls = tick_nohz_get_idle_calls_cpu(sg_cpu->cpu);  in sugov_hold_freq()
352 	ret = idle_calls == sg_cpu->saved_idle_calls;  in sugov_hold_freq()
354 	sg_cpu->saved_idle_calls = idle_calls;  in sugov_hold_freq()
358 static inline bool sugov_hold_freq(struct sugov_cpu *sg_cpu) { return false; }  in sugov_hold_freq()  argument
365 static inline void ignore_dl_rate_limit(struct sugov_cpu *sg_cpu)  in ignore_dl_rate_limit()  argument
367 	if (cpu_bw_dl(cpu_rq(sg_cpu->cpu)) > sg_cpu->bw_min)  in ignore_dl_rate_limit()
368 		sg_cpu->sg_policy->limits_changed = true;  in ignore_dl_rate_limit()
371 static inline bool sugov_update_single_common(struct sugov_cpu *sg_cpu,  in sugov_update_single_common()  argument
377 	sugov_iowait_boost(sg_cpu, time, flags);  in sugov_update_single_common()
378 	sg_cpu->last_update = time;  in sugov_update_single_common()
380 	ignore_dl_rate_limit(sg_cpu);  in sugov_update_single_common()
382 	if (!sugov_should_update_freq(sg_cpu->sg_policy, time))  in sugov_update_single_common()
385 	boost = sugov_iowait_apply(sg_cpu, time, max_cap);  in sugov_update_single_common()
386 	sugov_get_util(sg_cpu, boost);  in sugov_update_single_common()
394 	struct sugov_cpu *sg_cpu = container_of(hook, struct sugov_cpu, update_util);  in sugov_update_single_freq()  local
395 	struct sugov_policy *sg_policy = sg_cpu->sg_policy;  in sugov_update_single_freq()
400 	max_cap = arch_scale_cpu_capacity(sg_cpu->cpu);  in sugov_update_single_freq()
402 	if (!sugov_update_single_common(sg_cpu, time, max_cap, flags))  in sugov_update_single_freq()
405 	next_f = get_next_freq(sg_policy, sg_cpu->util, max_cap);  in sugov_update_single_freq()
407 	if (sugov_hold_freq(sg_cpu) && next_f < sg_policy->next_freq &&  in sugov_update_single_freq()
435 	struct sugov_cpu *sg_cpu = container_of(hook, struct sugov_cpu, update_util);  in sugov_update_single_perf()  local
436 	unsigned long prev_util = sg_cpu->util;  in sugov_update_single_perf()
449 	max_cap = arch_scale_cpu_capacity(sg_cpu->cpu);  in sugov_update_single_perf()
451 	if (!sugov_update_single_common(sg_cpu, time, max_cap, flags))  in sugov_update_single_perf()
454 	if (sugov_hold_freq(sg_cpu) && sg_cpu->util < prev_util)  in sugov_update_single_perf()
455 		sg_cpu->util = prev_util;  in sugov_update_single_perf()
457 	cpufreq_driver_adjust_perf(sg_cpu->cpu, sg_cpu->bw_min,  in sugov_update_single_perf()
458 				   sg_cpu->util, max_cap);  in sugov_update_single_perf()
460 	sg_cpu->sg_policy->last_freq_update_time = time;  in sugov_update_single_perf()
463 static unsigned int sugov_next_freq_shared(struct sugov_cpu *sg_cpu, u64 time)  in sugov_next_freq_shared()  argument
465 	struct sugov_policy *sg_policy = sg_cpu->sg_policy;  in sugov_next_freq_shared()
470 	max_cap = arch_scale_cpu_capacity(sg_cpu->cpu);  in sugov_next_freq_shared()
488 	struct sugov_cpu *sg_cpu = container_of(hook, struct sugov_cpu, update_util);  in sugov_update_shared()  local
489 	struct sugov_policy *sg_policy = sg_cpu->sg_policy;  in sugov_update_shared()
494 	sugov_iowait_boost(sg_cpu, time, flags);  in sugov_update_shared()
495 	sg_cpu->last_update = time;  in sugov_update_shared()
497 	ignore_dl_rate_limit(sg_cpu);  in sugov_update_shared()
500 		next_f = sugov_next_freq_shared(sg_cpu, time);  in sugov_update_shared()
838 		struct sugov_cpu *sg_cpu = &per_cpu(sugov_cpu, cpu);  in sugov_start()  local
840 		memset(sg_cpu, 0, sizeof(*sg_cpu));  in sugov_start()
841 		sg_cpu->cpu = cpu;  in sugov_start()
842 		sg_cpu->sg_policy = sg_policy;  in sugov_start()
843 		cpufreq_add_update_util_hook(cpu, &sg_cpu->update_util, uu);  in sugov_start()