xref: /linux/arch/sh/include/asm/entry-macros.S (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1! entry.S macro define
2
3	.macro	cli
4	stc	sr, r0
5	or	#0xf0, r0
6	ldc	r0, sr
7	.endm
8
9	.macro	sti
10	mov	#0xfffffff0, r11
11	extu.b	r11, r11
12	not	r11, r11
13	stc	sr, r10
14	and	r11, r10
15#ifdef CONFIG_CPU_HAS_SR_RB
16	stc	k_g_imask, r11
17	or	r11, r10
18#endif
19	ldc	r10, sr
20	.endm
21
22	.macro	get_current_thread_info, ti, tmp
23#ifdef CONFIG_CPU_HAS_SR_RB
24	stc	r7_bank, \ti
25#else
26	mov	#((THREAD_SIZE - 1) >> 10) ^ 0xff, \tmp
27	shll8	\tmp
28	shll2	\tmp
29	mov	r15, \ti
30	and	\tmp, \ti
31#endif
32	.endm
33
34#ifdef CONFIG_TRACE_IRQFLAGS
35
36	.macro	TRACE_IRQS_ON
37	mov.l	r0, @-r15
38	mov.l	r1, @-r15
39	mov.l	r2, @-r15
40	mov.l	r3, @-r15
41	mov.l	r4, @-r15
42	mov.l	r5, @-r15
43	mov.l	r6, @-r15
44	mov.l	r7, @-r15
45
46	mov.l   7834f, r0
47	jsr	@r0
48	 nop
49
50	mov.l	@r15+, r7
51	mov.l	@r15+, r6
52	mov.l	@r15+, r5
53	mov.l	@r15+, r4
54	mov.l	@r15+, r3
55	mov.l	@r15+, r2
56	mov.l	@r15+, r1
57	mov.l	@r15+, r0
58	mov.l	7834f, r0
59
60	bra	7835f
61	 nop
62	.balign	4
637834:	.long	trace_hardirqs_on
647835:
65	.endm
66	.macro	TRACE_IRQS_OFF
67
68	mov.l	r0, @-r15
69	mov.l	r1, @-r15
70	mov.l	r2, @-r15
71	mov.l	r3, @-r15
72	mov.l	r4, @-r15
73	mov.l	r5, @-r15
74	mov.l	r6, @-r15
75	mov.l	r7, @-r15
76
77	mov.l	7834f, r0
78	jsr	@r0
79	 nop
80
81	mov.l	@r15+, r7
82	mov.l	@r15+, r6
83	mov.l	@r15+, r5
84	mov.l	@r15+, r4
85	mov.l	@r15+, r3
86	mov.l	@r15+, r2
87	mov.l	@r15+, r1
88	mov.l	@r15+, r0
89	mov.l	7834f, r0
90
91	bra	7835f
92	 nop
93	.balign	4
947834:	.long	trace_hardirqs_off
957835:
96	.endm
97
98#else
99	.macro	TRACE_IRQS_ON
100	.endm
101
102	.macro	TRACE_IRQS_OFF
103	.endm
104#endif
105
106#if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH4)
107# define PREF(x)	pref	@x
108#else
109# define PREF(x)	nop
110#endif
111
112	/*
113	 * Macro for use within assembly. Because the DWARF unwinder
114	 * needs to use the frame register to unwind the stack, we
115	 * need to setup r14 with the value of the stack pointer as
116	 * the return address is usually on the stack somewhere.
117	 */
118	.macro	setup_frame_reg
119#ifdef CONFIG_DWARF_UNWINDER
120	mov	r15, r14
121#endif
122	.endm
123