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 */ |
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 | |
35 | void __init init_IRQ(void) |
36 | { |
37 | irqchip_init(); |
38 | } |
39 | |