aboutsummaryrefslogtreecommitdiffstats
path: root/arch/sh/include/asm/irqflags_32.h
blob: 60218f541340bbb46d5068e4019898f7348dc86c (plain) (blame)
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
98
99
#ifndef __ASM_SH_IRQFLAGS_32_H
#define __ASM_SH_IRQFLAGS_32_H

static inline void raw_local_irq_enable(void)
{
	unsigned long __dummy0, __dummy1;

	__asm__ __volatile__ (
		"stc	sr, %0\n\t"
		"and	%1, %0\n\t"
#ifdef CONFIG_CPU_HAS_SR_RB
		"stc	r6_bank, %1\n\t"
		"or	%1, %0\n\t"
#endif
		"ldc	%0, sr\n\t"
		: "=&r" (__dummy0), "=r" (__dummy1)
		: "1" (~0x000000f0)
		: "memory"
	);
}

static inline void raw_local_irq_disable(void)
{
	unsigned long flags;

	__asm__ __volatile__ (
		"stc	sr, %0\n\t"
		"or	#0xf0, %0\n\t"
		"ldc	%0, sr\n\t"
		: "=&z" (flags)
		: /* no inputs */
		: "memory"
	);
}

static inline void set_bl_bit(void)
{
	unsigned long __dummy0, __dummy1;

	__asm__ __volatile__ (
		"stc	sr, %0\n\t"
		"or	%2, %0\n\t"
		"and	%3, %0\n\t"
		"ldc	%0, sr\n\t"
		: "=&r" (__dummy0), "=r" (__dummy1)
		: "r" (0x10000000), "r" (0xffffff0f)
		: "memory"
	);
}

static inline void clear_bl_bit(void)
{
	unsigned long __dummy0, __dummy1;

	__asm__ __volatile__ (
		"stc	sr, %0\n\t"
		"and	%2, %0\n\t"
		"ldc	%0, sr\n\t"
		: "=&r" (__dummy0), "=r" (__dummy1)
		: "1" (~0x10000000)
		: "memory"
	);
}

static inline unsigned long __raw_local_save_flags(void)
{
	unsigned long flags;

	__asm__ __volatile__ (
		"stc	sr, %0\n\t"
		"and	#0xf0, %0\n\t"
		: "=&z" (flags)
		: /* no inputs */
		: "memory"
	);

	return flags;
}

static inline unsigned long __raw_local_irq_save(void)
{
	unsigned long flags, __dummy;

	__asm__ __volatile__ (
		"stc	sr, %1\n\t"
		"mov	%1, %0\n\t"
		"or	#0xf0, %0\n\t"
		"ldc	%0, sr\n\t"
		"mov	%1, %0\n\t"
		"and	#0xf0, %0\n\t"
		: "=&z" (flags), "=&r" (__dummy)
		: /* no inputs */
		: "memory"
	);

	return flags;
}

#endif /* __ASM_SH_IRQFLAGS_32_H */