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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
816ebaa8 JB |
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> | |
816ebaa8 JB |
11 | */ |
12 | ||
816ebaa8 JB |
13 | #include <linux/interrupt.h> |
14 | #include <linux/init.h> | |
816ebaa8 JB |
15 | #include <linux/ftrace.h> |
16 | #include <linux/irq.h> | |
4db8e6d2 | 17 | #include <linux/irqchip.h> |
abdf8b5e | 18 | #include <linux/export.h> |
816ebaa8 JB |
19 | #include <linux/irqflags.h> |
20 | ||
21 | /* read interrupt enabled status */ | |
22 | unsigned long arch_local_save_flags(void) | |
23 | { | |
24 | return mfspr(SPR_SR) & (SPR_SR_IEE|SPR_SR_TEE); | |
25 | } | |
26 | EXPORT_SYMBOL(arch_local_save_flags); | |
27 | ||
28 | /* set interrupt enabled status */ | |
29 | void arch_local_irq_restore(unsigned long flags) | |
30 | { | |
31 | mtspr(SPR_SR, ((mfspr(SPR_SR) & ~(SPR_SR_IEE|SPR_SR_TEE)) | flags)); | |
32 | } | |
33 | EXPORT_SYMBOL(arch_local_irq_restore); | |
34 | ||
4db8e6d2 | 35 | void __init init_IRQ(void) |
816ebaa8 | 36 | { |
4db8e6d2 | 37 | irqchip_init(); |
b4c4c6ee | 38 | } |
816ebaa8 | 39 | |
4db8e6d2 SK |
40 | void __irq_entry do_IRQ(struct pt_regs *regs) |
41 | { | |
42 | handle_arch_irq(regs); | |
43 | } |