mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 11:19:37 +00:00
2874c5fd28
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (C) 2003 Ralf Baechle
|
|
*
|
|
* Handler for RM7000 extended interrupts. These are a non-standard
|
|
* feature so we handle them separately from standard interrupts.
|
|
*/
|
|
#include <linux/init.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/kernel.h>
|
|
|
|
#include <asm/irq_cpu.h>
|
|
#include <asm/mipsregs.h>
|
|
|
|
static inline void unmask_rm7k_irq(struct irq_data *d)
|
|
{
|
|
set_c0_intcontrol(0x100 << (d->irq - RM7K_CPU_IRQ_BASE));
|
|
}
|
|
|
|
static inline void mask_rm7k_irq(struct irq_data *d)
|
|
{
|
|
clear_c0_intcontrol(0x100 << (d->irq - RM7K_CPU_IRQ_BASE));
|
|
}
|
|
|
|
static struct irq_chip rm7k_irq_controller = {
|
|
.name = "RM7000",
|
|
.irq_ack = mask_rm7k_irq,
|
|
.irq_mask = mask_rm7k_irq,
|
|
.irq_mask_ack = mask_rm7k_irq,
|
|
.irq_unmask = unmask_rm7k_irq,
|
|
.irq_eoi = unmask_rm7k_irq
|
|
};
|
|
|
|
void __init rm7k_cpu_irq_init(void)
|
|
{
|
|
int base = RM7K_CPU_IRQ_BASE;
|
|
int i;
|
|
|
|
clear_c0_intcontrol(0x00000f00); /* Mask all */
|
|
|
|
for (i = base; i < base + 4; i++)
|
|
irq_set_chip_and_handler(i, &rm7k_irq_controller,
|
|
handle_percpu_irq);
|
|
}
|