1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
54 #include <dt-bindings/interrupt-controller/apple-aic.h>
175 	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)  in apple_aic_probe()
193 	sc->sc_dev = dev;  in apple_aic_attach()
196 	sc->sc_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,  in apple_aic_attach()
198 	if (sc->sc_mem == NULL) {  in apple_aic_attach()
203 	info = bus_read_4(sc->sc_mem, AIC_INFO);  in apple_aic_attach()
204 	sc->sc_nirqs = AIC_INFO_NIRQS(info);  in apple_aic_attach()
205 	sc->sc_ndie = AIC_INFO_NDIE(info) + 1;  in apple_aic_attach()
208 		    sc->sc_nirqs, sc->sc_ndie);  in apple_aic_attach()
210 	for (i = 0; i < sc->sc_ndie; i++) {  in apple_aic_attach()
211 		sc->sc_isrcs[i] = mallocarray(sc->sc_nirqs,  in apple_aic_attach()
212 		    sizeof(**sc->sc_isrcs), M_DEVBUF, M_WAITOK | M_ZERO);  in apple_aic_attach()
216 	sc->sc_ipimasks = malloc(sizeof(*sc->sc_ipimasks) * mp_maxid + 1,  in apple_aic_attach()
219 	sc->sc_cpuids = malloc(sizeof(*sc->sc_cpuids) * mp_maxid + 1,  in apple_aic_attach()
223 	sc->sc_cpuids[cpu] = bus_read_4(sc->sc_mem, AIC_WHOAMI);  in apple_aic_attach()
226 		    sc->sc_cpuids[cpu]);  in apple_aic_attach()
229 	for (i = 0; i < sc->sc_ndie; i++) {  in apple_aic_attach()
232 		die_isrcs = sc->sc_isrcs[i];  in apple_aic_attach()
233 		for (j = 0; j < sc->sc_nirqs; j++) {  in apple_aic_attach()
267 		    "Unable to set root fiq controller\n");  in apple_aic_attach()
289 	if (data->ncells != 3)  in apple_aic_map_intr_fdt()
298 	 *   1 = FIQ  in apple_aic_map_intr_fdt()
302 	switch(data->cells[0]) {  in apple_aic_map_intr_fdt()
315 	*irq = data->cells[1];  in apple_aic_map_intr_fdt()
316 	if (*irq > sc->sc_nirqs)  in apple_aic_map_intr_fdt()
320 		if ((data->cells[2] & FDT_INTR_EDGE_MASK) != 0)  in apple_aic_map_intr_fdt()
326 		if ((data->cells[2] & FDT_INTR_LEVEL_HIGH) != 0)  in apple_aic_map_intr_fdt()
347 	switch(data->type) {  in apple_aic_map_intr()
353 			*isrcp = &sc->sc_isrcs[0 /* XXX */][irq].ai_isrc;  in apple_aic_map_intr()
378 		KASSERT(data->type == INTR_MAP_DATA_FDT,  in apple_aic_setup_intr()
380 		    data->type));  in apple_aic_setup_intr()
391 	if (isrc->isrc_handlers != 0) {  in apple_aic_setup_intr()
401 	ai->ai_pol = pol;  in apple_aic_setup_intr()
402 	ai->ai_trig = trig;  in apple_aic_setup_intr()
403 	ai->ai_type = type;  in apple_aic_setup_intr()
412 		bus_write_4(sc->sc_mem, AIC_TARGET_CPU(irq),  in apple_aic_setup_intr()
413 		    1 << sc->sc_cpuids[aic_next_cpu]);  in apple_aic_setup_intr()
416 		isrc->isrc_flags |= INTR_ISRCF_PPI;  in apple_aic_setup_intr()
440 	irq = ai->ai_irq;  in apple_aic_enable_intr()
441 	switch(ai->ai_type) {  in apple_aic_enable_intr()
444 		bus_write_4(sc->sc_mem, AIC_MASK_CLEAR(irq), AIC_IRQ_MASK(irq));  in apple_aic_enable_intr()
453 		panic("%s: %x\n", __func__, ai->ai_type);  in apple_aic_enable_intr()
465 	irq = ai->ai_irq;  in apple_aic_disable_intr()
466 	switch(ai->ai_type) {  in apple_aic_disable_intr()
469 		bus_write_4(sc->sc_mem, AIC_MASK_SET(irq), AIC_IRQ_MASK(irq));  in apple_aic_disable_intr()
478 		panic("%s: %x\n", __func__, ai->ai_type);  in apple_aic_disable_intr()
490 	irq = ai->ai_irq;  in apple_aic_post_filter()
491 	switch(ai->ai_type) {  in apple_aic_post_filter()
494 		bus_write_4(sc->sc_mem, AIC_SW_CLEAR(irq), AIC_IRQ_MASK(irq));  in apple_aic_post_filter()
495 		bus_write_4(sc->sc_mem, AIC_MASK_CLEAR(irq), AIC_IRQ_MASK(irq));  in apple_aic_post_filter()
501 		panic("%s: %x\n", __func__, ai->ai_type);  in apple_aic_post_filter()
514 	irq = ai->ai_irq;  in apple_aic_pre_ithread()
515 	bus_write_4(sc->sc_mem, AIC_SW_CLEAR(irq), AIC_IRQ_MASK(irq));  in apple_aic_pre_ithread()
529 	irq = ai->ai_irq;  in apple_aic_post_ithread()
531 	bus_write_4(sc->sc_mem, AIC_MASK_CLEAR(irq), AIC_IRQ_MASK(irq));  in apple_aic_post_ithread()
545 	mask = atomic_readandclear_32(&sc->sc_ipimasks[cpu]);  in apple_aic_ipi_received()
548 		ipi = ffs(mask) - 1;  in apple_aic_ipi_received()
565 	tf = curthread->td_intr_frame;  in apple_aic_irq()
567 	event = bus_read_4(sc->sc_mem, AIC_EVENT);  in apple_aic_irq()
575 			device_printf(sc->sc_dev, "unexpected event type %d\n",  in apple_aic_irq()
583 	if (die >= sc->sc_ndie)  in apple_aic_irq()
585 	if (irq >= sc->sc_nirqs)  in apple_aic_irq()
588 	aisrc = &sc->sc_isrcs[die][irq];  in apple_aic_irq()
589 	if (intr_isrc_dispatch(&aisrc->ai_isrc, tf) != 0) {  in apple_aic_irq()
590 		device_printf(sc->sc_dev, "Stray irq %u:%u disabled\n",  in apple_aic_irq()
606 	tf = curthread->td_intr_frame;  in apple_aic_fiq()
621 	isrcs = sc->sc_isrcs[0];  in apple_aic_fiq()
657 	MPASS(((struct apple_aic_irqsrc *)isrc)->ai_type == AIC_TYPE_IRQ);  in apple_aic_bind_intr()
658 	irq = ((struct apple_aic_irqsrc *)isrc)->ai_irq;  in apple_aic_bind_intr()
659 	if (CPU_EMPTY(&isrc->isrc_cpu)) {  in apple_aic_bind_intr()
661 		CPU_SETOF(aic_next_cpu, &isrc->isrc_cpu);  in apple_aic_bind_intr()
662 		bus_write_4(sc->sc_mem, AIC_TARGET_CPU(irq),  in apple_aic_bind_intr()
663 		    sc->sc_cpuids[aic_next_cpu] << 1);  in apple_aic_bind_intr()
665 		CPU_FOREACH_ISSET(cpu, &isrc->isrc_cpu) {  in apple_aic_bind_intr()
666 			targets |= sc->sc_cpuids[cpu] << 1;  in apple_aic_bind_intr()
668 		bus_write_4(sc->sc_mem, AIC_TARGET_CPU(irq), targets);  in apple_aic_bind_intr()
685 	KASSERT(isrc == &sc->sc_ipi_srcs[ipi].ai_isrc,  in apple_aic_ipi_send()
691 			atomic_set_32(&sc->sc_ipimasks[cpu], 1 << ipi);  in apple_aic_ipi_send()
725 	ai = &sc->sc_ipi_srcs[ipi];  in apple_aic_ipi_setup()
726 	ai->ai_type = AIC_TYPE_IPI;  in apple_aic_ipi_setup()
728 	*isrcp = &ai->ai_isrc;  in apple_aic_ipi_setup()
738 	/* We don't need to re-initialize for the FIQ root. */  in apple_aic_init_secondary()
742 	sc->sc_cpuids[cpu] = bus_read_4(sc->sc_mem, AIC_WHOAMI);  in apple_aic_init_secondary()
745 		    sc->sc_cpuids[cpu]);  in apple_aic_init_secondary()
747 	bus_write_4(sc->sc_mem, AIC_IPI_MASK_SET, AIC_IPI_SELF | AIC_IPI_OTHER);  in apple_aic_init_secondary()
752 	/* Device interface */