1 // SPDX-License-Identifier: GPL-2.0-only
3  * Windfarm PowerMac thermal control.
93 #define LOW_OVER_CLEAR		((-10) << 16)
161 	cpu_thist_total -= t_old;  in cpu_check_overtemp()
187 		/* High overtemp -> immediate shutdown */  in cpu_check_overtemp()
207 	/* Get diode temperature */  in read_one_cpu_vals()
211 		return -EIO;  in read_one_cpu_vals()
220 		return -EIO;  in read_one_cpu_vals()
228 		return -EIO;  in read_one_cpu_vals()
256 		wf_control_get(cpu_fans[cpu][0], &sp->target);  in cpu_fans_tick()
275 		DBG_LOTS("  CPU%d: target = %d RPM\n", cpu, sp->target);  in cpu_fans_tick()
278 		speed = max(sp->target, dimms_output_clamp);  in cpu_fans_tick()
285 					cpu_fans[cpu][i]->name, err);  in cpu_fans_tick()
301 	tmax = mpu->tmax << 16;  in cpu_setup_pid()
302 	ttarget = mpu->ttarget << 16;  in cpu_setup_pid()
303 	ptarget = ((s32)(mpu->pmaxh - mpu->padjmax)) << 16;  in cpu_setup_pid()
318 	hsize = min_t(int, mpu->tguardband, WF_PID_MAX_HISTORY);  in cpu_setup_pid()
324 	pid.gd		= mpu->pid_gd;  in cpu_setup_pid()
325 	pid.gp		= mpu->pid_gp;  in cpu_setup_pid()
326 	pid.gr		= mpu->pid_gr;  in cpu_setup_pid()
373 	if (--backside_tick > 0)  in backside_fan_tick()
460 	if (--slots_tick > 0)  in slots_fan_tick()
571 	if (!strcmp(ct->name, "cpu-fan-a-0"))  in rm31_new_control()
573 	else if (!strcmp(ct->name, "cpu-fan-b-0"))  in rm31_new_control()
575 	else if (!strcmp(ct->name, "cpu-fan-c-0"))  in rm31_new_control()
577 	else if (!strcmp(ct->name, "cpu-fan-a-1"))  in rm31_new_control()
579 	else if (!strcmp(ct->name, "cpu-fan-b-1"))  in rm31_new_control()
581 	else if (!strcmp(ct->name, "cpu-fan-c-1"))  in rm31_new_control()
583 	else if (!strcmp(ct->name, "backside-fan"))  in rm31_new_control()
585 	else if (!strcmp(ct->name, "slots-fan"))  in rm31_new_control()
587 	else if (!strcmp(ct->name, "cpufreq-clamp"))  in rm31_new_control()
609 	if (!strcmp(sr->name, "cpu-diode-temp-0"))  in rm31_new_sensor()
611 	else if (!strcmp(sr->name, "cpu-diode-temp-1"))  in rm31_new_sensor()
613 	else if (!strcmp(sr->name, "cpu-voltage-0"))  in rm31_new_sensor()
615 	else if (!strcmp(sr->name, "cpu-voltage-1"))  in rm31_new_sensor()
617 	else if (!strcmp(sr->name, "cpu-current-0"))  in rm31_new_sensor()
619 	else if (!strcmp(sr->name, "cpu-current-1"))  in rm31_new_sensor()
621 	else if (!strcmp(sr->name, "backside-temp"))  in rm31_new_sensor()
623 	else if (!strcmp(sr->name, "slots-temp"))  in rm31_new_sensor()
625 	else if (!strcmp(sr->name, "dimms-temp"))  in rm31_new_sensor()
690 		return -ENODEV;  in wf_rm31_init()
707 			return -ENXIO;  in wf_rm31_init()
733 MODULE_DESCRIPTION("Thermal control for Xserve G5");