1/*
 2 * OpenRISC irq.c
 3 *
 4 * Linux architectural port borrowing liberally from similar works of
 5 * others.  All original copyrights apply as per the original source
 6 * declaration.
 7 *
 8 * Modifications for the OpenRISC architecture:
 9 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
10 *
11 *      This program is free software; you can redistribute it and/or
12 *      modify it under the terms of the GNU General Public License
13 *      as published by the Free Software Foundation; either version
14 *      2 of the License, or (at your option) any later version.
15 */
16
17#include <linux/interrupt.h>
18#include <linux/init.h>
19#include <linux/ftrace.h>
20#include <linux/irq.h>
21#include <linux/irqchip.h>
22#include <linux/export.h>
23#include <linux/irqflags.h>
24
25/* read interrupt enabled status */
26unsigned long arch_local_save_flags(void)
27{
28	return mfspr(SPR_SR) & (SPR_SR_IEE|SPR_SR_TEE);
29}
30EXPORT_SYMBOL(arch_local_save_flags);
31
32/* set interrupt enabled status */
33void arch_local_irq_restore(unsigned long flags)
34{
35	mtspr(SPR_SR, ((mfspr(SPR_SR) & ~(SPR_SR_IEE|SPR_SR_TEE)) | flags));
36}
37EXPORT_SYMBOL(arch_local_irq_restore);
38
39void __init init_IRQ(void)
40{
41	irqchip_init();
42}
43
44static void (*handle_arch_irq)(struct pt_regs *);
45
46void __init set_handle_irq(void (*handle_irq)(struct pt_regs *))
47{
48	handle_arch_irq = handle_irq;
49}
50
51void __irq_entry do_IRQ(struct pt_regs *regs)
52{
53	handle_arch_irq(regs);
54}

 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
40void __irq_entry do_IRQ(struct pt_regs *regs)
41{
42	handle_arch_irq(regs);
43}