cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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irq.c (939B)

      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}