1 // SPDX-License-Identifier: GPL-2.0
7 #define pr_fmt(fmt) "htvec: " fmt
28 struct htvec {  struct
41 	struct htvec *priv = irq_desc_get_handler_data(desc);  in htvec_irq_dispatch()  argument
45 	for (i = 0; i < priv->num_parents; i++) {  in htvec_irq_dispatch()
46 		pending = readl(priv->base + 4 * i);  in htvec_irq_dispatch()
50 			generic_handle_domain_irq(priv->htvec_domain,  in htvec_irq_dispatch()
65 	struct htvec *priv = irq_data_get_irq_chip_data(d);  in htvec_ack_irq()
67 	writel(BIT(VEC_REG_BIT(d->hwirq)),  in htvec_ack_irq()
68 	       priv->base + VEC_REG_IDX(d->hwirq) * 4);  in htvec_ack_irq()
75 	struct htvec *priv = irq_data_get_irq_chip_data(d);  in htvec_mask_irq()
77 	raw_spin_lock(&priv->htvec_lock);  in htvec_mask_irq()
78 	addr = priv->base + HTVEC_EN_OFF;  in htvec_mask_irq()
79 	addr += VEC_REG_IDX(d->hwirq) * 4;  in htvec_mask_irq()
81 	reg &= ~BIT(VEC_REG_BIT(d->hwirq));  in htvec_mask_irq()
83 	raw_spin_unlock(&priv->htvec_lock);  in htvec_mask_irq()
90 	struct htvec *priv = irq_data_get_irq_chip_data(d);  in htvec_unmask_irq()
92 	raw_spin_lock(&priv->htvec_lock);  in htvec_unmask_irq()
93 	addr = priv->base + HTVEC_EN_OFF;  in htvec_unmask_irq()
94 	addr += VEC_REG_IDX(d->hwirq) * 4;  in htvec_unmask_irq()
96 	reg |= BIT(VEC_REG_BIT(d->hwirq));  in htvec_unmask_irq()
98 	raw_spin_unlock(&priv->htvec_lock);  in htvec_unmask_irq()
114 	struct htvec *priv = domain->host_data;  in htvec_domain_alloc()
147 static void htvec_reset(struct htvec *priv)  in htvec_reset()
152 	for (idx = 0; idx < priv->num_parents; idx++) {  in htvec_reset()
153 		writel_relaxed(0x0, priv->base + HTVEC_EN_OFF + 4 * idx);  in htvec_reset()
154 		writel_relaxed(0xFFFFFFFF, priv->base + 4 * idx);  in htvec_reset()
161 	struct htvec *priv;  in htvec_of_init()
166 		return -ENOMEM;  in htvec_of_init()
168 	raw_spin_lock_init(&priv->htvec_lock);  in htvec_of_init()
169 	priv->base = of_iomap(node, 0);  in htvec_of_init()
170 	if (!priv->base) {  in htvec_of_init()
171 		err = -ENOMEM;  in htvec_of_init()
181 		priv->num_parents++;  in htvec_of_init()
184 	if (!priv->num_parents) {  in htvec_of_init()
186 		err = -ENODEV;  in htvec_of_init()
190 	priv->htvec_domain = irq_domain_create_linear(of_node_to_fwnode(node),  in htvec_of_init()
191 					(VEC_COUNT_PER_REG * priv->num_parents),  in htvec_of_init()
193 	if (!priv->htvec_domain) {  in htvec_of_init()
195 		err = -ENOMEM;  in htvec_of_init()
201 	for (i = 0; i < priv->num_parents; i++)  in htvec_of_init()
208 	for (; i > 0; i--)  in htvec_of_init()
209 		irq_dispose_mapping(parent_irq[i - 1]);  in htvec_of_init()
211 	iounmap(priv->base);  in htvec_of_init()
218 IRQCHIP_DECLARE(htvec, "loongson,htvec-1.0", htvec_of_init);