1 // SPDX-License-Identifier: GPL-2.0
14 #include <linux/irqchip/riscv-aplic.h>
20 #include "irq-riscv-aplic-main.h"
61 		cpu = cpumask_first_and(&direct->lmask, mask_val);  in aplic_direct_set_affinity()
63 		cpu = cpumask_first_and_and(&direct->lmask, mask_val, cpu_online_mask);  in aplic_direct_set_affinity()
66 		return -EINVAL;  in aplic_direct_set_affinity()
69 	target = priv->regs + APLIC_TARGET_BASE + (d->hwirq - 1) * sizeof(u32);  in aplic_direct_set_affinity()
70 	val = FIELD_PREP(APLIC_TARGET_HART_IDX, idc->hart_index);  in aplic_direct_set_affinity()
81 	.name		= "APLIC-DIRECT",
97 	struct aplic_priv *priv = d->host_data;  in aplic_direct_irqdomain_translate()
99 	return aplic_irqdomain_translate(fwspec, priv->gsi_base, hwirq, type);  in aplic_direct_irqdomain_translate()
105 	struct aplic_priv *priv = domain->host_data;  in aplic_direct_irqdomain_alloc()
112 	ret = aplic_irqdomain_translate(fwspec, priv->gsi_base, &hwirq, &type);  in aplic_direct_irqdomain_alloc()
119 		irq_set_affinity(virq + i, &direct->lmask);  in aplic_direct_irqdomain_alloc()
140 	struct irq_domain *irqdomain = idc->direct->irqdomain;  in aplic_direct_handle_irq()
147 	while ((hw_irq = readl(idc->regs + APLIC_IDC_CLAIMI))) {  in aplic_direct_handle_irq()
152 			dev_warn_ratelimited(idc->direct->priv.dev,  in aplic_direct_handle_irq()
168 	writel(th, idc->regs + APLIC_IDC_ITHRESHOLD);  in aplic_idc_set_delivery()
171 	writel(de, idc->regs + APLIC_IDC_IDELIVERY);  in aplic_idc_set_delivery()
200 	if (!is_of_node(dev->fwnode)) {  in aplic_direct_parse_parent_hwirq()
201 		hartid = acpi_rintc_ext_parent_to_hartid(priv->acpi_aplic_id, index);  in aplic_direct_parse_parent_hwirq()
203 			return -ENODEV;  in aplic_direct_parse_parent_hwirq()
210 	rc = of_irq_parse_one(to_of_node(dev->fwnode), index, &parent);  in aplic_direct_parse_parent_hwirq()
234 		return -ENOMEM;  in aplic_direct_setup()
235 	priv = &direct->priv;  in aplic_direct_setup()
243 	/* Setup per-CPU IDC and target CPU mask */  in aplic_direct_setup()
245 	for (i = 0; i < priv->nr_idcs; i++) {  in aplic_direct_setup()
265 		cpumask_set_cpu(cpu, &direct->lmask);  in aplic_direct_setup()
268 		rc = riscv_get_hart_index(dev->fwnode, i, &idc->hart_index);  in aplic_direct_setup()
270 			dev_warn(dev, "hart index not found for IDC%d\n", i);  in aplic_direct_setup()
273 		idc->regs = priv->regs + APLIC_IDC_BASE + idc->hart_index * APLIC_IDC_SIZE;  in aplic_direct_setup()
274 		idc->direct = direct;  in aplic_direct_setup()
282 		if (cpu == current_cpu && idc->hart_index) {  in aplic_direct_setup()
283 			v = FIELD_PREP(APLIC_TARGET_HART_IDX, idc->hart_index);  in aplic_direct_setup()
285 			for (j = 1; j <= priv->nr_irqs; j++)  in aplic_direct_setup()
286 				writel(v, priv->regs + APLIC_TARGET_BASE + (j - 1) * sizeof(u32));  in aplic_direct_setup()
315 		return -ENODEV;  in aplic_direct_setup()
321 	direct->irqdomain = irq_domain_create_linear(dev->fwnode, priv->nr_irqs + 1,  in aplic_direct_setup()
323 	if (!direct->irqdomain) {  in aplic_direct_setup()
325 		return -ENOMEM;  in aplic_direct_setup()
330 		 priv->nr_irqs, priv->nr_idcs);  in aplic_direct_setup()