xref: /OK3568_Linux_fs/kernel/arch/parisc/include/asm/irqflags.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __PARISC_IRQFLAGS_H
3*4882a593Smuzhiyun #define __PARISC_IRQFLAGS_H
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun #include <linux/types.h>
6*4882a593Smuzhiyun #include <asm/psw.h>
7*4882a593Smuzhiyun 
arch_local_save_flags(void)8*4882a593Smuzhiyun static inline unsigned long arch_local_save_flags(void)
9*4882a593Smuzhiyun {
10*4882a593Smuzhiyun 	unsigned long flags;
11*4882a593Smuzhiyun 	asm volatile("ssm 0, %0" : "=r" (flags) : : "memory");
12*4882a593Smuzhiyun 	return flags;
13*4882a593Smuzhiyun }
14*4882a593Smuzhiyun 
arch_local_irq_disable(void)15*4882a593Smuzhiyun static inline void arch_local_irq_disable(void)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun 	asm volatile("rsm %0,%%r0\n" : : "i" (PSW_I) : "memory");
18*4882a593Smuzhiyun }
19*4882a593Smuzhiyun 
arch_local_irq_enable(void)20*4882a593Smuzhiyun static inline void arch_local_irq_enable(void)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun 	asm volatile("ssm %0,%%r0\n" : : "i" (PSW_I) : "memory");
23*4882a593Smuzhiyun }
24*4882a593Smuzhiyun 
arch_local_irq_save(void)25*4882a593Smuzhiyun static inline unsigned long arch_local_irq_save(void)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun 	unsigned long flags;
28*4882a593Smuzhiyun 	asm volatile("rsm %1,%0" : "=r" (flags) : "i" (PSW_I) : "memory");
29*4882a593Smuzhiyun 	return flags;
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun 
arch_local_irq_restore(unsigned long flags)32*4882a593Smuzhiyun static inline void arch_local_irq_restore(unsigned long flags)
33*4882a593Smuzhiyun {
34*4882a593Smuzhiyun 	asm volatile("mtsm %0" : : "r" (flags) : "memory");
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun 
arch_irqs_disabled_flags(unsigned long flags)37*4882a593Smuzhiyun static inline bool arch_irqs_disabled_flags(unsigned long flags)
38*4882a593Smuzhiyun {
39*4882a593Smuzhiyun 	return (flags & PSW_I) == 0;
40*4882a593Smuzhiyun }
41*4882a593Smuzhiyun 
arch_irqs_disabled(void)42*4882a593Smuzhiyun static inline bool arch_irqs_disabled(void)
43*4882a593Smuzhiyun {
44*4882a593Smuzhiyun 	return arch_irqs_disabled_flags(arch_local_save_flags());
45*4882a593Smuzhiyun }
46*4882a593Smuzhiyun 
47*4882a593Smuzhiyun #endif /* __PARISC_IRQFLAGS_H */
48