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Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
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*/
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#ifndef _ASM_IRQFLAGS_H
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#define _ASM_IRQFLAGS_H
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#include <asm/registers.h>
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static inline unsigned long arch_local_save_flags(void)
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{
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return RDCTL(CTL_STATUS);
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}
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/*
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* This will restore ALL status register flags, not only the interrupt
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* mask flag.
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*/
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static inline void arch_local_irq_restore(unsigned long flags)
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{
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WRCTL(CTL_STATUS, flags);
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}
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static inline void arch_local_irq_disable(void)
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{
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unsigned long flags;
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flags = arch_local_save_flags();
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arch_local_irq_restore(flags & ~STATUS_PIE);
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}
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static inline void arch_local_irq_enable(void)
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{
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unsigned long flags;
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flags = arch_local_save_flags();
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arch_local_irq_restore(flags | STATUS_PIE);
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}
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static inline int arch_irqs_disabled_flags(unsigned long flags)
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{
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return (flags & STATUS_PIE) == 0;
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}
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static inline int arch_irqs_disabled(void)
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{
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return arch_irqs_disabled_flags(arch_local_save_flags());
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}
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static inline unsigned long arch_local_irq_save(void)
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{
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unsigned long flags;
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flags = arch_local_save_flags();
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arch_local_irq_restore(flags & ~STATUS_PIE);
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return flags;
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}
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#endif /* _ASM_IRQFLAGS_H */
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