1 // SPDX-License-Identifier: GPL-2.0-only
10 #include <linux/interrupt.h>
37 	unsigned int src = virq_to_hw(d->irq) - mpic->err_int_vecs[0];  in fsl_mpic_mask_err()  local
39 	eimr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EIMR);  in fsl_mpic_mask_err()
40 	eimr |= (1 << (31 - src));  in fsl_mpic_mask_err()
41 	mpic_fsl_err_write(mpic->err_regs, eimr);  in fsl_mpic_mask_err()
48 	unsigned int src = virq_to_hw(d->irq) - mpic->err_int_vecs[0];  in fsl_mpic_unmask_err()  local
50 	eimr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EIMR);  in fsl_mpic_unmask_err()
51 	eimr &= ~(1 << (31 - src));  in fsl_mpic_unmask_err()
52 	mpic_fsl_err_write(mpic->err_regs, eimr);  in fsl_mpic_unmask_err()
65 	mpic->err_regs = ioremap(mpic->paddr + MPIC_ERR_INT_BASE, 0x1000);  in mpic_setup_error_int()
66 	if (!mpic->err_regs) {  in mpic_setup_error_int()
68 		return -ENOMEM;  in mpic_setup_error_int()
70 	mpic->hc_err = fsl_mpic_err_chip;  in mpic_setup_error_int()
71 	mpic->hc_err.name = mpic->name;  in mpic_setup_error_int()
72 	mpic->flags |= MPIC_FSL_HAS_EIMR;  in mpic_setup_error_int()
73 	/* allocate interrupt vectors for error interrupts */  in mpic_setup_error_int()
74 	for (i = MPIC_MAX_ERR - 1; i >= 0; i--)  in mpic_setup_error_int()
75 		mpic->err_int_vecs[i] = intvec--;  in mpic_setup_error_int()
82 	if ((mpic->flags & MPIC_FSL_HAS_EIMR) &&  in mpic_map_error_int()
83 	    (hw >= mpic->err_int_vecs[0] &&  in mpic_map_error_int()
84 	     hw <= mpic->err_int_vecs[MPIC_MAX_ERR - 1])) {  in mpic_map_error_int()
85 		WARN_ON(mpic->flags & MPIC_SECONDARY);  in mpic_map_error_int()
87 		pr_debug("mpic: mapping as Error Interrupt\n");  in mpic_map_error_int()
89 		irq_set_chip_and_handler(virq, &mpic->hc_err,  in mpic_map_error_int()
103 	eisr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EISR);  in fsl_error_int_handler()
104 	eimr = mpic_fsl_err_read(mpic->err_regs, MPIC_ERR_INT_EIMR);  in fsl_error_int_handler()
112 		ret = generic_handle_domain_irq(mpic->irqhost,  in fsl_error_int_handler()
113 						mpic->err_int_vecs[errint]);  in fsl_error_int_handler()
115 			eimr |=  1 << (31 - errint);  in fsl_error_int_handler()
116 			mpic_fsl_err_write(mpic->err_regs, eimr);  in fsl_error_int_handler()
118 		eisr &= ~(1 << (31 - errint));  in fsl_error_int_handler()
129 	virq = irq_create_mapping(mpic->irqhost, irqnum);  in mpic_err_int_init()
131 		pr_err("Error interrupt setup failed\n");  in mpic_err_int_init()
136 	mpic_fsl_err_write(mpic->err_regs, ~0);  in mpic_err_int_init()
139 		    "mpic-error-int", mpic);  in mpic_err_int_init()
141 		pr_err("Failed to register error interrupt handler\n");  in mpic_err_int_init()