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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __ASM_GENERIC_IRQFLAGS_H
3#define __ASM_GENERIC_IRQFLAGS_H
4
5/*
6 * All architectures should implement at least the first two functions,
7 * usually inline assembly will be the best way.
8 */
9#ifndef ARCH_IRQ_DISABLED
10#define ARCH_IRQ_DISABLED 0
11#define ARCH_IRQ_ENABLED 1
12#endif
13
14/* read interrupt enabled status */
15#ifndef arch_local_save_flags
16unsigned long arch_local_save_flags(void);
17#endif
18
19/* set interrupt enabled status */
20#ifndef arch_local_irq_restore
21void arch_local_irq_restore(unsigned long flags);
22#endif
23
24/* get status and disable interrupts */
25#ifndef arch_local_irq_save
26static inline unsigned long arch_local_irq_save(void)
27{
28 unsigned long flags;
29 flags = arch_local_save_flags();
30 arch_local_irq_restore(ARCH_IRQ_DISABLED);
31 return flags;
32}
33#endif
34
35/* test flags */
36#ifndef arch_irqs_disabled_flags
37static inline int arch_irqs_disabled_flags(unsigned long flags)
38{
39 return flags == ARCH_IRQ_DISABLED;
40}
41#endif
42
43/* unconditionally enable interrupts */
44#ifndef arch_local_irq_enable
45static inline void arch_local_irq_enable(void)
46{
47 arch_local_irq_restore(ARCH_IRQ_ENABLED);
48}
49#endif
50
51/* unconditionally disable interrupts */
52#ifndef arch_local_irq_disable
53static inline void arch_local_irq_disable(void)
54{
55 arch_local_irq_restore(ARCH_IRQ_DISABLED);
56}
57#endif
58
59/* test hardware interrupt enable bit */
60#ifndef arch_irqs_disabled
61static inline int arch_irqs_disabled(void)
62{
63 return arch_irqs_disabled_flags(arch_local_save_flags());
64}
65#endif
66
67#endif /* __ASM_GENERIC_IRQFLAGS_H */
68

Warning: That file was not part of the compilation database. It may have many parsing errors.

source code of linux/include/asm-generic/irqflags.h