1 // SPDX-License-Identifier: GPL-2.0-or-later <<
2 /* 1 /*
3 * OpenRISC irq.c !! 2 * irq.c
4 * 3 *
5 * Linux architectural port borrowing liberall !! 4 * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com>
6 * others. All original copyrights apply as p <<
7 * declaration. <<
8 * 5 *
9 * Modifications for the OpenRISC architecture !! 6 * This file is subject to the terms and conditions of the GNU General Public
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@s !! 7 * License. See the file COPYING in the main directory of this archive
>> 8 * for more details.
11 */ 9 */
12 10
13 #include <linux/interrupt.h> !! 11 #include <linux/types.h>
14 #include <linux/init.h> 12 #include <linux/init.h>
15 #include <linux/ftrace.h> !! 13 #include <linux/kernel.h>
>> 14 #include <linux/kernel_stat.h>
>> 15 #include <linux/interrupt.h>
16 #include <linux/irq.h> 16 #include <linux/irq.h>
17 #include <linux/irqchip.h> !! 17 #include <linux/seq_file.h>
18 #include <linux/export.h> !! 18 #include <asm/traps.h>
19 #include <linux/irqflags.h> <<
20 19
21 /* read interrupt enabled status */ !! 20 asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
22 unsigned long arch_local_save_flags(void) <<
23 { 21 {
24 return mfspr(SPR_SR) & (SPR_SR_IEE|SPR !! 22 struct pt_regs *oldregs = set_irq_regs(regs);
25 } <<
26 EXPORT_SYMBOL(arch_local_save_flags); <<
27 23
28 /* set interrupt enabled status */ !! 24 irq_enter();
29 void arch_local_irq_restore(unsigned long flag !! 25 generic_handle_irq(irq);
30 { !! 26 irq_exit();
31 mtspr(SPR_SR, ((mfspr(SPR_SR) & ~(SPR_ !! 27
>> 28 set_irq_regs(oldregs);
32 } 29 }
33 EXPORT_SYMBOL(arch_local_irq_restore); <<
34 30
35 void __init init_IRQ(void) !! 31
>> 32 /* The number of spurious interrupts */
>> 33 atomic_t irq_err_count;
>> 34
>> 35 int arch_show_interrupts(struct seq_file *p, int prec)
36 { 36 {
37 irqchip_init(); !! 37 seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count));
>> 38 return 0;
38 } 39 }
39 40
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