| * Copyright (C) 2003 Ralf Baechle |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| * Handler for RM7000 extended interrupts. These are a non-standard |
| * feature so we handle them separately from standard interrupts. |
| #include <linux/interrupt.h> |
| #include <linux/kernel.h> |
| #include <asm/mipsregs.h> |
| static inline void unmask_rm7k_irq(unsigned int irq) |
| set_c0_intcontrol(0x100 << (irq - RM7K_CPU_IRQ_BASE)); |
| static inline void mask_rm7k_irq(unsigned int irq) |
| clear_c0_intcontrol(0x100 << (irq - RM7K_CPU_IRQ_BASE)); |
| static struct irq_chip rm7k_irq_controller = { |
| .mask_ack = mask_rm7k_irq, |
| .unmask = unmask_rm7k_irq, |
| void __init rm7k_cpu_irq_init(void) |
| int base = RM7K_CPU_IRQ_BASE; |
| clear_c0_intcontrol(0x00000f00); /* Mask all */ |
| for (i = base; i < base + 4; i++) |
| set_irq_chip_and_handler(i, &rm7k_irq_controller, |