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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
d2a5f499 YS |
2 | #ifndef _H8300_IRQFLAGS_H |
3 | #define _H8300_IRQFLAGS_H | |
4 | ||
5 | #ifdef CONFIG_CPU_H8300H | |
6 | typedef unsigned char h8300flags; | |
7 | ||
8 | static inline h8300flags arch_local_save_flags(void) | |
9 | { | |
10 | h8300flags flags; | |
11 | ||
12 | __asm__ volatile ("stc ccr,%w0" : "=r" (flags)); | |
13 | return flags; | |
14 | } | |
15 | ||
16 | static inline void arch_local_irq_disable(void) | |
17 | { | |
18 | __asm__ volatile ("orc #0xc0,ccr"); | |
19 | } | |
20 | ||
21 | static inline void arch_local_irq_enable(void) | |
22 | { | |
23 | __asm__ volatile ("andc #0x3f,ccr"); | |
24 | } | |
25 | ||
26 | static inline h8300flags arch_local_irq_save(void) | |
27 | { | |
28 | h8300flags flags; | |
29 | ||
30 | __asm__ volatile ("stc ccr,%w0\n\t" | |
31 | "orc #0xc0,ccr" : "=r" (flags)); | |
32 | return flags; | |
33 | } | |
34 | ||
35 | static inline void arch_local_irq_restore(h8300flags flags) | |
36 | { | |
37 | __asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc"); | |
38 | } | |
39 | ||
40 | static inline int arch_irqs_disabled_flags(unsigned long flags) | |
41 | { | |
42 | return (flags & 0xc0) == 0xc0; | |
43 | } | |
44 | #endif | |
45 | #ifdef CONFIG_CPU_H8S | |
46 | typedef unsigned short h8300flags; | |
47 | ||
48 | static inline h8300flags arch_local_save_flags(void) | |
49 | { | |
50 | h8300flags flags; | |
51 | ||
52 | __asm__ volatile ("stc ccr,%w0\n\tstc exr,%x0" : "=r" (flags)); | |
53 | return flags; | |
54 | } | |
55 | ||
56 | static inline void arch_local_irq_disable(void) | |
57 | { | |
58 | __asm__ volatile ("orc #0x80,ccr\n\t"); | |
59 | } | |
60 | ||
61 | static inline void arch_local_irq_enable(void) | |
62 | { | |
63 | __asm__ volatile ("andc #0x7f,ccr\n\t" | |
64 | "andc #0xf0,exr\n\t"); | |
65 | } | |
66 | ||
67 | static inline h8300flags arch_local_irq_save(void) | |
68 | { | |
69 | h8300flags flags; | |
70 | ||
71 | __asm__ volatile ("stc ccr,%w0\n\t" | |
72 | "stc exr,%x0\n\t" | |
73 | "orc #0x80,ccr\n\t" | |
74 | : "=r" (flags)); | |
75 | return flags; | |
76 | } | |
77 | ||
78 | static inline void arch_local_irq_restore(h8300flags flags) | |
79 | { | |
80 | __asm__ volatile ("ldc %w0,ccr\n\t" | |
81 | "ldc %x0,exr" | |
82 | : : "r" (flags) : "cc"); | |
83 | } | |
84 | ||
85 | static inline int arch_irqs_disabled_flags(h8300flags flags) | |
86 | { | |
87 | return (flags & 0x0080) == 0x0080; | |
88 | } | |
89 | ||
90 | #endif | |
91 | ||
92 | static inline int arch_irqs_disabled(void) | |
93 | { | |
94 | return arch_irqs_disabled_flags(arch_local_save_flags()); | |
95 | } | |
96 | ||
97 | #endif /* _H8300_IRQFLAGS_H */ |