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