1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
4 */
5#ifndef _ASM_IRQFLAGS_H
6#define _ASM_IRQFLAGS_H
7
8#include <asm/registers.h>
9
10static inline unsigned long arch_local_save_flags(void)
11{
12	return RDCTL(CTL_FSTATUS);
13}
14
15/*
16 * This will restore ALL status register flags, not only the interrupt
17 * mask flag.
18 */
19static inline void arch_local_irq_restore(unsigned long flags)
20{
21	WRCTL(CTL_FSTATUS, flags);
22}
23
24static inline void arch_local_irq_disable(void)
25{
26	unsigned long flags;
27
28	flags = arch_local_save_flags();
29	arch_local_irq_restore(flags & ~STATUS_PIE);
30}
31
32static inline void arch_local_irq_enable(void)
33{
34	unsigned long flags;
35
36	flags = arch_local_save_flags();
37	arch_local_irq_restore(flags | STATUS_PIE);
38}
39
40static inline int arch_irqs_disabled_flags(unsigned long flags)
41{
42	return (flags & STATUS_PIE) == 0;
43}
44
45static inline int arch_irqs_disabled(void)
46{
47	return arch_irqs_disabled_flags(arch_local_save_flags());
48}
49
50static inline unsigned long arch_local_irq_save(void)
51{
52	unsigned long flags;
53
54	flags = arch_local_save_flags();
55	arch_local_irq_restore(flags & ~STATUS_PIE);
56	return flags;
57}
58
59#endif /* _ASM_IRQFLAGS_H */
60