49 lines
1.0 KiB
C
49 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* include/asm/irqflags.h
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*
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* IRQ flags handling
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*
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* This file gets included from lowlevel asm headers too, to provide
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* wrapped versions of the local_irq_*() APIs, based on the
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* arch_local_irq_*() functions from the lowlevel headers.
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*/
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#ifndef _ASM_IRQFLAGS_H
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#define _ASM_IRQFLAGS_H
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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#include <asm/psr.h>
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void arch_local_irq_restore(unsigned long);
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unsigned long arch_local_irq_save(void);
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void arch_local_irq_enable(void);
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static inline notrace unsigned long arch_local_save_flags(void)
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{
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unsigned long flags;
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asm volatile("rd %%psr, %0" : "=r" (flags));
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return flags;
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}
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static inline notrace void arch_local_irq_disable(void)
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{
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arch_local_irq_save();
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}
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static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
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{
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return (flags & PSR_PIL) != 0;
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}
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static inline notrace bool 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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#endif /* (__ASSEMBLY__) */
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#endif /* !(_ASM_IRQFLAGS_H) */
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