1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * include/asm/irqflags.h
 4 *
 5 * IRQ flags handling
 6 *
 7 * This file gets included from lowlevel asm headers too, to provide
 8 * wrapped versions of the local_irq_*() APIs, based on the
 9 * arch_local_irq_*() functions from the lowlevel headers.
10 */
11#ifndef _ASM_IRQFLAGS_H
12#define _ASM_IRQFLAGS_H
13
14#ifndef __ASSEMBLY__
15
16#include <linux/types.h>
17#include <asm/psr.h>
18
19void arch_local_irq_restore(unsigned long);
20unsigned long arch_local_irq_save(void);
21void arch_local_irq_enable(void);
22
23static inline notrace unsigned long arch_local_save_flags(void)
24{
25	unsigned long flags;
26
27	asm volatile("rd        %%psr, %0" : "=r" (flags));
28	return flags;
29}
30
31static inline notrace void arch_local_irq_disable(void)
32{
33	arch_local_irq_save();
34}
35
36static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
37{
38	return (flags & PSR_PIL) != 0;
39}
40
41static inline notrace bool arch_irqs_disabled(void)
42{
43	return arch_irqs_disabled_flags(arch_local_save_flags());
44}
45
46#endif /* (__ASSEMBLY__) */
47
48#endif /* !(_ASM_IRQFLAGS_H) */

 
 1/*
 2 * include/asm/irqflags.h
 3 *
 4 * IRQ flags handling
 5 *
 6 * This file gets included from lowlevel asm headers too, to provide
 7 * wrapped versions of the local_irq_*() APIs, based on the
 8 * arch_local_irq_*() functions from the lowlevel headers.
 9 */
10#ifndef _ASM_IRQFLAGS_H
11#define _ASM_IRQFLAGS_H
12
13#ifndef __ASSEMBLY__
14
15#include <linux/types.h>
16#include <asm/psr.h>
17
18void arch_local_irq_restore(unsigned long);
19unsigned long arch_local_irq_save(void);
20void arch_local_irq_enable(void);
21
22static inline notrace unsigned long arch_local_save_flags(void)
23{
24	unsigned long flags;
25
26	asm volatile("rd        %%psr, %0" : "=r" (flags));
27	return flags;
28}
29
30static inline notrace void arch_local_irq_disable(void)
31{
32	arch_local_irq_save();
33}
34
35static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
36{
37	return (flags & PSR_PIL) != 0;
38}
39
40static inline notrace bool arch_irqs_disabled(void)
41{
42	return arch_irqs_disabled_flags(arch_local_save_flags());
43}
44
45#endif /* (__ASSEMBLY__) */
46
47#endif /* !(_ASM_IRQFLAGS_H) */