1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * OpenRISC irq.c
4 *
5 * Linux architectural port borrowing liberally from similar works of
6 * others. All original copyrights apply as per the original source
7 * declaration.
8 *
9 * Modifications for the OpenRISC architecture:
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 */
12
13#include <linux/interrupt.h>
14#include <linux/init.h>
15#include <linux/ftrace.h>
16#include <linux/irq.h>
17#include <linux/irqchip.h>
18#include <linux/export.h>
19#include <linux/irqflags.h>
20
21/* read interrupt enabled status */
22unsigned long arch_local_save_flags(void)
23{
24 return mfspr(SPR_SR) & (SPR_SR_IEE|SPR_SR_TEE);
25}
26EXPORT_SYMBOL(arch_local_save_flags);
27
28/* set interrupt enabled status */
29void arch_local_irq_restore(unsigned long flags)
30{
31 mtspr(SPR_SR, ((mfspr(SPR_SR) & ~(SPR_SR_IEE|SPR_SR_TEE)) | flags));
32}
33EXPORT_SYMBOL(arch_local_irq_restore);
34
35void __init init_IRQ(void)
36{
37 irqchip_init();
38}
39

source code of linux/arch/openrisc/kernel/irq.c