xref: /OK3568_Linux_fs/kernel/arch/nds32/include/asm/irqflags.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun // Copyright (C) 2005-2017 Andes Technology Corporation
3*4882a593Smuzhiyun 
4*4882a593Smuzhiyun #include <asm/nds32.h>
5*4882a593Smuzhiyun #include <nds32_intrinsic.h>
6*4882a593Smuzhiyun 
7*4882a593Smuzhiyun #define arch_local_irq_disable()	\
8*4882a593Smuzhiyun 	GIE_DISABLE();
9*4882a593Smuzhiyun 
10*4882a593Smuzhiyun #define arch_local_irq_enable()	\
11*4882a593Smuzhiyun 	GIE_ENABLE();
arch_local_irq_save(void)12*4882a593Smuzhiyun static inline unsigned long arch_local_irq_save(void)
13*4882a593Smuzhiyun {
14*4882a593Smuzhiyun 	unsigned long flags;
15*4882a593Smuzhiyun 	flags = __nds32__mfsr(NDS32_SR_PSW) & PSW_mskGIE;
16*4882a593Smuzhiyun 	GIE_DISABLE();
17*4882a593Smuzhiyun 	return flags;
18*4882a593Smuzhiyun }
19*4882a593Smuzhiyun 
arch_local_save_flags(void)20*4882a593Smuzhiyun static inline unsigned long arch_local_save_flags(void)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun 	unsigned long flags;
23*4882a593Smuzhiyun 	flags = __nds32__mfsr(NDS32_SR_PSW) & PSW_mskGIE;
24*4882a593Smuzhiyun 	return flags;
25*4882a593Smuzhiyun }
26*4882a593Smuzhiyun 
arch_local_irq_restore(unsigned long flags)27*4882a593Smuzhiyun static inline void arch_local_irq_restore(unsigned long flags)
28*4882a593Smuzhiyun {
29*4882a593Smuzhiyun 	if(flags)
30*4882a593Smuzhiyun 		GIE_ENABLE();
31*4882a593Smuzhiyun }
32*4882a593Smuzhiyun 
arch_irqs_disabled_flags(unsigned long flags)33*4882a593Smuzhiyun static inline int arch_irqs_disabled_flags(unsigned long flags)
34*4882a593Smuzhiyun {
35*4882a593Smuzhiyun 	return !flags;
36*4882a593Smuzhiyun }
37*4882a593Smuzhiyun 
arch_irqs_disabled(void)38*4882a593Smuzhiyun static inline int arch_irqs_disabled(void)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun 	return arch_irqs_disabled_flags(arch_local_save_flags());
41*4882a593Smuzhiyun }
42