4  * SPDX-License-Identifier:     GPL-2.0+
12 #include <asm/u-boot-arm.h>
13 #include <irq-generic.h>
14 #include "irq-internal.h"
59 		if (irq >= desc->irq_base && irq <= desc->irq_end)  in find_virq_desc()
73 		if (parent_irq == desc->pirq)  in find_virq_desc_by_pirq()
87 		return -EINVAL;  in virq_to_irq()
91 		if (desc->chip == chip) {  in virq_to_irq()
92 			irq = desc->irq_base + virq;  in virq_to_irq()
93 			if (irq >= desc->irq_base && irq <= desc->irq_end)  in virq_to_irq()
98 	return -ENONET;  in virq_to_irq()
111 	int num;  in virqs_show()  local
118 	vdata = desc->virqs;  in virqs_show()
119 	num = desc->irq_end - desc->irq_base;  in virqs_show()
121 	for (i = 0; i < num; i++) {  in virqs_show()
126 		printf(" %3d    %d     0x%08lx    %-12s    |-- %-12s   %d\n",  in virqs_show()
129 		       (ulong)vdata[i].handle_irq, dev->driver->name, dev->name,  in virqs_show()
140 		return -EINVAL;  in virq_install_handler()
144 		return -ENOENT;  in virq_install_handler()
146 	virq = irq - desc->irq_base;  in virq_install_handler()
147 	if (desc->virqs[virq].handle_irq)  in virq_install_handler()
148 		return -EBUSY;  in virq_install_handler()
150 	desc->virqs[virq].handle_irq = handler;  in virq_install_handler()
151 	desc->virqs[virq].data = data;  in virq_install_handler()
165 	virq = irq - desc->irq_base;  in virq_free_handler()
166 	desc->virqs[virq].handle_irq = NULL;  in virq_free_handler()
167 	desc->virqs[virq].data = NULL;  in virq_free_handler()
174 	if (idx <= desc->unalign_reg_idx) {  in reg_base_get()
175 		reg_addr = reg_base + (idx * desc->unalign_reg_stride);  in reg_base_get()
178 			   (desc->unalign_reg_idx * desc->unalign_reg_stride);  in reg_base_get()
179 		reg_addr += (idx - desc->unalign_reg_idx) * desc->reg_stride;  in reg_base_get()
201 	chip = desc->chip;  in virq_chip_generic_handler()
202 	vdata = desc->virqs;  in virq_chip_generic_handler()
209 	for (i = 0; i < chip->num_regs; i++) {  in virq_chip_generic_handler()
210 		status_reg = reg_base_get(desc, chip->status_base, i);  in virq_chip_generic_handler()
211 		desc->status_buf[i] = chip->read(parent, status_reg);  in virq_chip_generic_handler()
212 		if (desc->status_buf[i] < 0) {  in virq_chip_generic_handler()
214 			       __func__, status_reg, desc->status_buf[i]);  in virq_chip_generic_handler()
219 	for (i = 0; i < chip->num_irqs; i++) {  in virq_chip_generic_handler()
220 		if (desc->status_buf[chip->irqs[i].reg_offset] &  in virq_chip_generic_handler()
221 		    chip->irqs[i].mask) {  in virq_chip_generic_handler()
233 	for (i = 0; i < chip->num_regs; i++) {  in virq_chip_generic_handler()
234 		status_reg = reg_base_get(desc, chip->status_base, i);  in virq_chip_generic_handler()
235 		ret = chip->write(parent, status_reg, ~0U);  in virq_chip_generic_handler()
253 		return -EINVAL;  in virq_add_chip()
257 		return -ENOMEM;  in virq_add_chip()
259 	vdata = (struct virq_data *)calloc(sizeof(*vdata), chip->num_irqs);  in virq_add_chip()
261 		ret = -ENOMEM;  in virq_add_chip()
265 	status_buf = (uint *)calloc(sizeof(*status_buf), chip->num_irqs);  in virq_add_chip()
267 		ret = -ENOMEM;  in virq_add_chip()
271 	for (i = 0; i < chip->num_irqs; i++)  in virq_add_chip()
274 	desc->parent = dev;  in virq_add_chip()
275 	desc->pirq = irq;  in virq_add_chip()
276 	desc->chip = chip;  in virq_add_chip()
277 	desc->virqs = vdata;  in virq_add_chip()
278 	desc->use_count = 0;  in virq_add_chip()
279 	desc->irq_base = vdata[0].irq;  in virq_add_chip()
280 	desc->irq_end = vdata[chip->num_irqs - 1].irq;  in virq_add_chip()
281 	desc->status_buf = status_buf;  in virq_add_chip()
282 	desc->reg_stride = chip->irq_reg_stride ? : 1;  in virq_add_chip()
283 	desc->unalign_reg_stride = chip->irq_unalign_reg_stride ? : 1;  in virq_add_chip()
284 	desc->unalign_reg_idx = chip->irq_unalign_reg_stride ?  in virq_add_chip()
285 					chip->irq_unalign_reg_idx : 0;  in virq_add_chip()
286 	list_add_tail(&desc->node, &virq_desc_head);  in virq_add_chip()
289 	for (i = 0; i < chip->num_regs; i++) {  in virq_add_chip()
290 		mask_reg = reg_base_get(desc, chip->mask_base, i);  in virq_add_chip()
291 		ret = chip->write(dev, mask_reg, ~0U);  in virq_add_chip()
298 	for (i = 0; i < chip->num_regs; i++) {  in virq_add_chip()
299 		status_reg = reg_base_get(desc, chip->status_base, i);  in virq_add_chip()
300 		ret = chip->write(dev, status_reg, ~0U);  in virq_add_chip()
338 		return -ENOENT;  in __virq_enable()
341 	chip = desc->chip;  in __virq_enable()
343 		return -ENOENT;  in __virq_enable()
345 	virq = irq - desc->irq_base;  in __virq_enable()
346 	mask_val = chip->irqs[virq].mask;  in __virq_enable()
347 	mask_reg = reg_base_get(desc, chip->mask_base,  in __virq_enable()
348 				chip->irqs[virq].reg_offset);  in __virq_enable()
349 	reg_val = chip->read(desc->parent, mask_reg);  in __virq_enable()
355 	ret = chip->write(desc->parent, mask_reg, reg_val);  in __virq_enable()
363 		desc->virqs[virq].flag |= IRQ_FLG_ENABLE;  in __virq_enable()
365 		desc->virqs[virq].flag &= ~IRQ_FLG_ENABLE;  in __virq_enable()
376 		return -EINVAL;  in virq_enable()
380 		if (desc->use_count == 0)  in virq_enable()
381 			irq_handler_enable(desc->pirq);  in virq_enable()
382 		desc->use_count++;  in virq_enable()
394 		return -EINVAL;  in virq_disable()
398 		if (desc->use_count <= 0)  in virq_disable()
401 		if (desc->use_count == 1)  in virq_disable()
402 			irq_handler_disable(desc->pirq);  in virq_disable()
403 		desc->use_count--;  in virq_disable()
410 	.name		= "virq-irq-chip",