205 		struct hpet_channel *hc = hpet_base.channels + i;  in hpet_reserve_platform_timers()  local
208 			hd.hd_irq[i] = hc->irq;  in hpet_reserve_platform_timers()
210 		switch (hc->mode) {  in hpet_reserve_platform_timers()
213 			hc->mode = HPET_MODE_DEVICE;  in hpet_reserve_platform_timers()
217 			hpet_reserve_timer(&hd, hc->num);  in hpet_reserve_platform_timers()
230 		struct hpet_channel *hc = hpet_base.channels + i;  in hpet_select_device_channel()  local
233 		if (hc->mode == HPET_MODE_UNUSED) {  in hpet_select_device_channel()
234 			hc->mode = HPET_MODE_DEVICE;  in hpet_select_device_channel()
396 static void hpet_init_clockevent(struct hpet_channel *hc, unsigned int rating)  in hpet_init_clockevent()  argument
398 	struct clock_event_device *evt = &hc->evt;  in hpet_init_clockevent()
401 	evt->irq		= hc->irq;  in hpet_init_clockevent()
402 	evt->name		= hc->name;  in hpet_init_clockevent()
403 	evt->cpumask		= cpumask_of(hc->cpu);  in hpet_init_clockevent()
409 	if (hc->boot_cfg & HPET_TN_PERIODIC) {  in hpet_init_clockevent()
415 static void __init hpet_legacy_clockevent_register(struct hpet_channel *hc)  in hpet_legacy_clockevent_register()  argument
421 	hc->cpu = boot_cpu_data.cpu_index;  in hpet_legacy_clockevent_register()
422 	strncpy(hc->name, "hpet", sizeof(hc->name));  in hpet_legacy_clockevent_register()
423 	hpet_init_clockevent(hc, 50);  in hpet_legacy_clockevent_register()
425 	hc->evt.tick_resume	= hpet_clkevt_legacy_resume;  in hpet_legacy_clockevent_register()
455 	hc->evt.features		|= CLOCK_EVT_FEAT_PERIODIC;  in hpet_legacy_clockevent_register()
456 	hc->evt.set_state_periodic	= hpet_clkevt_set_state_periodic;  in hpet_legacy_clockevent_register()
461 	clockevents_config_and_register(&hc->evt, hpet_freq,  in hpet_legacy_clockevent_register()
463 	global_clock_event = &hc->evt;  in hpet_legacy_clockevent_register()
474 	struct hpet_channel *hc = irq_data_get_irq_handler_data(data);  in hpet_msi_unmask()  local
477 	cfg = hpet_readl(HPET_Tn_CFG(hc->num));  in hpet_msi_unmask()
479 	hpet_writel(cfg, HPET_Tn_CFG(hc->num));  in hpet_msi_unmask()
484 	struct hpet_channel *hc = irq_data_get_irq_handler_data(data);  in hpet_msi_mask()  local
487 	cfg = hpet_readl(HPET_Tn_CFG(hc->num));  in hpet_msi_mask()
489 	hpet_writel(cfg, HPET_Tn_CFG(hc->num));  in hpet_msi_mask()
492 void hpet_msi_write(struct hpet_channel *hc, struct msi_msg *msg)  in hpet_msi_write()  argument
494 	hpet_writel(msg->data, HPET_Tn_ROUTE(hc->num));  in hpet_msi_write()
495 	hpet_writel(msg->address_lo, HPET_Tn_ROUTE(hc->num) + 4);  in hpet_msi_write()
500 	struct hpet_channel *hc = clockevent_to_channel(evt);  in hpet_clkevt_msi_resume()  local
501 	struct irq_data *data = irq_get_irq_data(hc->irq);  in hpet_clkevt_msi_resume()
506 	hpet_msi_write(hc, &msg);  in hpet_clkevt_msi_resume()
513 	struct hpet_channel *hc = data;  in hpet_msi_interrupt_handler()  local
514 	struct clock_event_device *evt = &hc->evt;  in hpet_msi_interrupt_handler()
517 		pr_info("Spurious interrupt HPET channel %d\n", hc->num);  in hpet_msi_interrupt_handler()
525 static int hpet_setup_msi_irq(struct hpet_channel *hc)  in hpet_setup_msi_irq()  argument
527 	if (request_irq(hc->irq, hpet_msi_interrupt_handler,  in hpet_setup_msi_irq()
529 			hc->name, hc))  in hpet_setup_msi_irq()
532 	disable_irq(hc->irq);  in hpet_setup_msi_irq()
533 	irq_set_affinity(hc->irq, cpumask_of(hc->cpu));  in hpet_setup_msi_irq()
534 	enable_irq(hc->irq);  in hpet_setup_msi_irq()
536 	pr_debug("%s irq %u for MSI\n", hc->name, hc->irq);  in hpet_setup_msi_irq()
542 static void init_one_hpet_msi_clockevent(struct hpet_channel *hc, int cpu)  in init_one_hpet_msi_clockevent()  argument
544 	struct clock_event_device *evt = &hc->evt;  in init_one_hpet_msi_clockevent()
546 	hc->cpu = cpu;  in init_one_hpet_msi_clockevent()
547 	per_cpu(cpu_hpet_channel, cpu) = hc;  in init_one_hpet_msi_clockevent()
548 	hpet_setup_msi_irq(hc);  in init_one_hpet_msi_clockevent()
550 	hpet_init_clockevent(hc, 110);  in init_one_hpet_msi_clockevent()
562 		struct hpet_channel *hc = hpet_base.channels + i;  in hpet_get_unused_clockevent()  local
564 		if (hc->mode != HPET_MODE_CLOCKEVT || hc->in_use)  in hpet_get_unused_clockevent()
566 		hc->in_use = 1;  in hpet_get_unused_clockevent()
567 		return hc;  in hpet_get_unused_clockevent()
574 	struct hpet_channel *hc = hpet_get_unused_clockevent();  in hpet_cpuhp_online()  local
576 	if (hc)  in hpet_cpuhp_online()
577 		init_one_hpet_msi_clockevent(hc, cpu);  in hpet_cpuhp_online()
583 	struct hpet_channel *hc = per_cpu(cpu_hpet_channel, cpu);  in hpet_cpuhp_dead()  local
585 	if (!hc)  in hpet_cpuhp_dead()
587 	free_irq(hc->irq, hc);  in hpet_cpuhp_dead()
588 	hc->in_use = 0;  in hpet_cpuhp_dead()
610 		struct hpet_channel *hc = hpet_base.channels + i;  in hpet_select_clockevents()  local
613 		if (hc->mode != HPET_MODE_UNUSED)  in hpet_select_clockevents()
617 		if (!(hc->boot_cfg & HPET_TN_FSB_CAP))  in hpet_select_clockevents()
620 		sprintf(hc->name, "hpet%d", i);  in hpet_select_clockevents()
622 		irq = hpet_assign_irq(hpet_domain, hc, hc->num);  in hpet_select_clockevents()
626 		hc->irq = irq;  in hpet_select_clockevents()
627 		hc->mode = HPET_MODE_CLOCKEVT;  in hpet_select_clockevents()
816 	struct hpet_channel *hc;  in hpet_enable()  local
859 	hc = kcalloc(channels, sizeof(*hc), GFP_KERNEL);  in hpet_enable()
860 	if (!hc) {  in hpet_enable()
864 	hpet_base.channels = hc;  in hpet_enable()
876 	for (i = 0; i < channels; i++, hc++) {  in hpet_enable()
877 		hc->num = i;  in hpet_enable()
880 		hc->boot_cfg = cfg;  in hpet_enable()
882 		hc->irq = irq;  in hpet_enable()