1 // SPDX-License-Identifier: GPL-2.0-or-later
51 		hwirq = fls64(e) - 1;  in opal_handle_events()
79 	clear_bit(d->hwirq, &opal_event_irqchip.mask);  in opal_event_mask()
84 	set_bit(d->hwirq, &opal_event_irqchip.mask);  in opal_event_unmask()
97 		return -EINVAL;  in opal_event_set_type()
104 		.name = "OPAL EVT",
152 	.map	= opal_event_map,
178 	int i, rc = 0;  in opal_event_init()  local
183 		return -ENODEV;  in opal_event_init()
193 	dn = of_find_compatible_node(NULL, NULL, "ibm,opal-event");  in opal_event_init()
199 		rc = -ENOMEM;  in opal_event_init()
203 	/* Look for new-style (standard) "interrupts" property */  in opal_event_init()
208 		/* Get opal-interrupts property and names if present */  in opal_event_init()
209 		rc = of_property_count_u32_elems(opal_node, "opal-interrupts");  in opal_event_init()
210 		if (rc > 0)  in opal_event_init()
211 			opal_irq_count = rc;  in opal_event_init()
225 		rc = -ENOMEM;  in opal_event_init()
231 		/* Old style "opal-interrupts" property */  in opal_event_init()
234 			const char *name = NULL;  in opal_event_init()  local
238 			rc = of_property_read_u32_index(opal_node, "opal-interrupts",  in opal_event_init()
240 			if (WARN_ON(rc < 0)) {  in opal_event_init()
244 			of_property_read_string_index(opal_node, "opal-interrupts-names",  in opal_event_init()
245 						      i, &name);  in opal_event_init()
248 				pr_warn("Failed to map OPAL irq 0x%x\n", hw_irq);  in opal_event_init()
251 			r->start = r->end = virq;  in opal_event_init()
252 			r->flags = IORESOURCE_IRQ | IRQ_TYPE_LEVEL_LOW;  in opal_event_init()
253 			r->name = name;  in opal_event_init()
257 		rc = of_irq_to_resource_table(opal_node, opal_irqs, opal_irq_count);  in opal_event_init()
258 		if (WARN_ON(rc < 0)) {  in opal_event_init()
263 		if (WARN_ON(rc < opal_irq_count))  in opal_event_init()
264 			opal_irq_count = rc;  in opal_event_init()
270 		const char *name;  in opal_event_init()  local
272 		/* Prefix name */  in opal_event_init()
273 		if (r->name && strlen(r->name))  in opal_event_init()
274 			name = kasprintf(GFP_KERNEL, "opal-%s", r->name);  in opal_event_init()
276 			name = kasprintf(GFP_KERNEL, "opal");  in opal_event_init()
278 		if (!name)  in opal_event_init()
281 		rc = request_irq(r->start, opal_interrupt, r->flags & IRQD_TRIGGER_MASK,  in opal_event_init()
282 				 name, NULL);  in opal_event_init()
283 		if (rc) {  in opal_event_init()
284 			pr_warn("Error %d requesting OPAL irq %d\n", rc, (int)r->start);  in opal_event_init()
285 			kfree(name);  in opal_event_init()
289 	rc = 0;  in opal_event_init()
292 	return rc;  in opal_event_init()
297  * opal_event_request(unsigned int opal_event_nr) - Request an event