summaryrefslogtreecommitdiff
path: root/arch/sh/include/asm/entry-macros.S
blob: cc43a55e1fcf4e21b102659193df16e786194e03 (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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
! entry.S macro define
	
	.macro	cli
	stc	sr, r0
	or	#0xf0, r0
	ldc	r0, sr
	.endm

	.macro	sti
	mov	#0xfffffff0, r11
	extu.b	r11, r11
	not	r11, r11
	stc	sr, r10
	and	r11, r10
#ifdef CONFIG_CPU_HAS_SR_RB
	stc	k_g_imask, r11
	or	r11, r10
#endif
	ldc	r10, sr
	.endm

	.macro	get_current_thread_info, ti, tmp
#ifdef CONFIG_CPU_HAS_SR_RB
	stc	r7_bank, \ti
#else
	mov	#((THREAD_SIZE - 1) >> 10) ^ 0xff, \tmp
	shll8	\tmp
	shll2	\tmp
	mov	r15, \ti
	and	\tmp, \ti
#endif	
	.endm

#ifdef CONFIG_TRACE_IRQFLAGS

	.macro	TRACE_IRQS_ON
	mov.l	r0, @-r15
	mov.l	r1, @-r15
	mov.l	r2, @-r15
	mov.l	r3, @-r15
	mov.l	r4, @-r15
	mov.l	r5, @-r15
	mov.l	r6, @-r15
	mov.l	r7, @-r15

	mov.l   7834f, r0
	jsr	@r0
	 nop

	mov.l	@r15+, r7
	mov.l	@r15+, r6
	mov.l	@r15+, r5
	mov.l	@r15+, r4
	mov.l	@r15+, r3
	mov.l	@r15+, r2
	mov.l	@r15+, r1
	mov.l	@r15+, r0
	mov.l	7834f, r0

	bra	7835f
	 nop
	.balign	4
7834:	.long	trace_hardirqs_on
7835:
	.endm
	.macro	TRACE_IRQS_OFF

	mov.l	r0, @-r15
	mov.l	r1, @-r15
	mov.l	r2, @-r15
	mov.l	r3, @-r15
	mov.l	r4, @-r15
	mov.l	r5, @-r15
	mov.l	r6, @-r15
	mov.l	r7, @-r15

	mov.l	7834f, r0
	jsr	@r0
	 nop

	mov.l	@r15+, r7
	mov.l	@r15+, r6
	mov.l	@r15+, r5
	mov.l	@r15+, r4
	mov.l	@r15+, r3
	mov.l	@r15+, r2
	mov.l	@r15+, r1
	mov.l	@r15+, r0
	mov.l	7834f, r0

	bra	7835f
	 nop
	.balign	4
7834:	.long	trace_hardirqs_off
7835:
	.endm

#else
	.macro	TRACE_IRQS_ON
	.endm

	.macro	TRACE_IRQS_OFF
	.endm
#endif

#if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH4)
# define PREF(x)	pref	@x
#else
# define PREF(x)	nop
#endif

	/*
	 * Macro for use within assembly. Because the DWARF unwinder
	 * needs to use the frame register to unwind the stack, we
	 * need to setup r14 with the value of the stack pointer as
	 * the return address is usually on the stack somewhere.
	 */
	.macro	setup_frame_reg
#ifdef CONFIG_DWARF_UNWINDER
	mov	r15, r14
#endif
	.endm