1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _H8300_IRQFLAGS_H
3*4882a593Smuzhiyun #define _H8300_IRQFLAGS_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #ifdef CONFIG_CPU_H8300H
6*4882a593Smuzhiyun typedef unsigned char h8300flags;
7*4882a593Smuzhiyun
arch_local_save_flags(void)8*4882a593Smuzhiyun static inline h8300flags arch_local_save_flags(void)
9*4882a593Smuzhiyun {
10*4882a593Smuzhiyun h8300flags flags;
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun __asm__ volatile ("stc ccr,%w0" : "=r" (flags));
13*4882a593Smuzhiyun return flags;
14*4882a593Smuzhiyun }
15*4882a593Smuzhiyun
arch_local_irq_disable(void)16*4882a593Smuzhiyun static inline void arch_local_irq_disable(void)
17*4882a593Smuzhiyun {
18*4882a593Smuzhiyun __asm__ volatile ("orc #0xc0,ccr");
19*4882a593Smuzhiyun }
20*4882a593Smuzhiyun
arch_local_irq_enable(void)21*4882a593Smuzhiyun static inline void arch_local_irq_enable(void)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun __asm__ volatile ("andc #0x3f,ccr");
24*4882a593Smuzhiyun }
25*4882a593Smuzhiyun
arch_local_irq_save(void)26*4882a593Smuzhiyun static inline h8300flags arch_local_irq_save(void)
27*4882a593Smuzhiyun {
28*4882a593Smuzhiyun h8300flags flags;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun __asm__ volatile ("stc ccr,%w0\n\t"
31*4882a593Smuzhiyun "orc #0xc0,ccr" : "=r" (flags));
32*4882a593Smuzhiyun return flags;
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun
arch_local_irq_restore(h8300flags flags)35*4882a593Smuzhiyun static inline void arch_local_irq_restore(h8300flags flags)
36*4882a593Smuzhiyun {
37*4882a593Smuzhiyun __asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc");
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun
arch_irqs_disabled_flags(unsigned long flags)40*4882a593Smuzhiyun static inline int arch_irqs_disabled_flags(unsigned long flags)
41*4882a593Smuzhiyun {
42*4882a593Smuzhiyun return (flags & 0xc0) == 0xc0;
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun #endif
45*4882a593Smuzhiyun #ifdef CONFIG_CPU_H8S
46*4882a593Smuzhiyun typedef unsigned short h8300flags;
47*4882a593Smuzhiyun
arch_local_save_flags(void)48*4882a593Smuzhiyun static inline h8300flags arch_local_save_flags(void)
49*4882a593Smuzhiyun {
50*4882a593Smuzhiyun h8300flags flags;
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun __asm__ volatile ("stc ccr,%w0\n\tstc exr,%x0" : "=r" (flags));
53*4882a593Smuzhiyun return flags;
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun
arch_local_irq_disable(void)56*4882a593Smuzhiyun static inline void arch_local_irq_disable(void)
57*4882a593Smuzhiyun {
58*4882a593Smuzhiyun __asm__ volatile ("orc #0x80,ccr\n\t");
59*4882a593Smuzhiyun }
60*4882a593Smuzhiyun
arch_local_irq_enable(void)61*4882a593Smuzhiyun static inline void arch_local_irq_enable(void)
62*4882a593Smuzhiyun {
63*4882a593Smuzhiyun __asm__ volatile ("andc #0x7f,ccr\n\t"
64*4882a593Smuzhiyun "andc #0xf0,exr\n\t");
65*4882a593Smuzhiyun }
66*4882a593Smuzhiyun
arch_local_irq_save(void)67*4882a593Smuzhiyun static inline h8300flags arch_local_irq_save(void)
68*4882a593Smuzhiyun {
69*4882a593Smuzhiyun h8300flags flags;
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun __asm__ volatile ("stc ccr,%w0\n\t"
72*4882a593Smuzhiyun "stc exr,%x0\n\t"
73*4882a593Smuzhiyun "orc #0x80,ccr\n\t"
74*4882a593Smuzhiyun : "=r" (flags));
75*4882a593Smuzhiyun return flags;
76*4882a593Smuzhiyun }
77*4882a593Smuzhiyun
arch_local_irq_restore(h8300flags flags)78*4882a593Smuzhiyun static inline void arch_local_irq_restore(h8300flags flags)
79*4882a593Smuzhiyun {
80*4882a593Smuzhiyun __asm__ volatile ("ldc %w0,ccr\n\t"
81*4882a593Smuzhiyun "ldc %x0,exr"
82*4882a593Smuzhiyun : : "r" (flags) : "cc");
83*4882a593Smuzhiyun }
84*4882a593Smuzhiyun
arch_irqs_disabled_flags(h8300flags flags)85*4882a593Smuzhiyun static inline int arch_irqs_disabled_flags(h8300flags flags)
86*4882a593Smuzhiyun {
87*4882a593Smuzhiyun return (flags & 0x0080) == 0x0080;
88*4882a593Smuzhiyun }
89*4882a593Smuzhiyun
90*4882a593Smuzhiyun #endif
91*4882a593Smuzhiyun
arch_irqs_disabled(void)92*4882a593Smuzhiyun static inline int arch_irqs_disabled(void)
93*4882a593Smuzhiyun {
94*4882a593Smuzhiyun return arch_irqs_disabled_flags(arch_local_save_flags());
95*4882a593Smuzhiyun }
96*4882a593Smuzhiyun
97*4882a593Smuzhiyun #endif /* _H8300_IRQFLAGS_H */
98