48 строки
1.2 KiB
C
48 строки
1.2 KiB
C
/*
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* OpenRISC irq.c
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*
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* Linux architectural port borrowing liberally from similar works of
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* others. All original copyrights apply as per the original source
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* declaration.
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*
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* Modifications for the OpenRISC architecture:
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* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/interrupt.h>
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#include <linux/init.h>
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#include <linux/ftrace.h>
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#include <linux/irq.h>
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#include <linux/irqchip.h>
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#include <linux/export.h>
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#include <linux/irqflags.h>
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/* read interrupt enabled status */
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unsigned long arch_local_save_flags(void)
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{
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return mfspr(SPR_SR) & (SPR_SR_IEE|SPR_SR_TEE);
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}
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EXPORT_SYMBOL(arch_local_save_flags);
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/* set interrupt enabled status */
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void arch_local_irq_restore(unsigned long flags)
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{
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mtspr(SPR_SR, ((mfspr(SPR_SR) & ~(SPR_SR_IEE|SPR_SR_TEE)) | flags));
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}
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EXPORT_SYMBOL(arch_local_irq_restore);
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void __init init_IRQ(void)
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{
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irqchip_init();
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}
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void __irq_entry do_IRQ(struct pt_regs *regs)
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{
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handle_arch_irq(regs);
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}
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