xref: /linux-6.15/include/linux/sh_intc.h (revision 45b9deaf)
1bbfbd8b1SPaul Mundt #ifndef __SH_INTC_H
2bbfbd8b1SPaul Mundt #define __SH_INTC_H
3bbfbd8b1SPaul Mundt 
4bbfbd8b1SPaul Mundt typedef unsigned char intc_enum;
5bbfbd8b1SPaul Mundt 
6bbfbd8b1SPaul Mundt struct intc_vect {
7bbfbd8b1SPaul Mundt 	intc_enum enum_id;
8bbfbd8b1SPaul Mundt 	unsigned short vect;
9bbfbd8b1SPaul Mundt };
10bbfbd8b1SPaul Mundt 
11bbfbd8b1SPaul Mundt #define INTC_VECT(enum_id, vect) { enum_id, vect }
12bbfbd8b1SPaul Mundt #define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
13bbfbd8b1SPaul Mundt 
14bbfbd8b1SPaul Mundt struct intc_group {
15bbfbd8b1SPaul Mundt 	intc_enum enum_id;
16bbfbd8b1SPaul Mundt 	intc_enum enum_ids[32];
17bbfbd8b1SPaul Mundt };
18bbfbd8b1SPaul Mundt 
19bbfbd8b1SPaul Mundt #define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }
20bbfbd8b1SPaul Mundt 
21bbfbd8b1SPaul Mundt struct intc_mask_reg {
22bbfbd8b1SPaul Mundt 	unsigned long set_reg, clr_reg, reg_width;
23bbfbd8b1SPaul Mundt 	intc_enum enum_ids[32];
24bbfbd8b1SPaul Mundt #ifdef CONFIG_SMP
25bbfbd8b1SPaul Mundt 	unsigned long smp;
26bbfbd8b1SPaul Mundt #endif
27bbfbd8b1SPaul Mundt };
28bbfbd8b1SPaul Mundt 
29bbfbd8b1SPaul Mundt struct intc_prio_reg {
30bbfbd8b1SPaul Mundt 	unsigned long set_reg, clr_reg, reg_width, field_width;
31bbfbd8b1SPaul Mundt 	intc_enum enum_ids[16];
32bbfbd8b1SPaul Mundt #ifdef CONFIG_SMP
33bbfbd8b1SPaul Mundt 	unsigned long smp;
34bbfbd8b1SPaul Mundt #endif
35bbfbd8b1SPaul Mundt };
36bbfbd8b1SPaul Mundt 
37bbfbd8b1SPaul Mundt struct intc_sense_reg {
38bbfbd8b1SPaul Mundt 	unsigned long reg, reg_width, field_width;
39bbfbd8b1SPaul Mundt 	intc_enum enum_ids[16];
40bbfbd8b1SPaul Mundt };
41bbfbd8b1SPaul Mundt 
42bbfbd8b1SPaul Mundt #ifdef CONFIG_SMP
43bbfbd8b1SPaul Mundt #define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
44bbfbd8b1SPaul Mundt #else
45bbfbd8b1SPaul Mundt #define INTC_SMP(stride, nr)
46bbfbd8b1SPaul Mundt #endif
47bbfbd8b1SPaul Mundt 
48bbfbd8b1SPaul Mundt struct intc_desc {
49bbfbd8b1SPaul Mundt 	struct intc_vect *vectors;
50bbfbd8b1SPaul Mundt 	unsigned int nr_vectors;
51bbfbd8b1SPaul Mundt 	struct intc_group *groups;
52bbfbd8b1SPaul Mundt 	unsigned int nr_groups;
53bbfbd8b1SPaul Mundt 	struct intc_mask_reg *mask_regs;
54bbfbd8b1SPaul Mundt 	unsigned int nr_mask_regs;
55bbfbd8b1SPaul Mundt 	struct intc_prio_reg *prio_regs;
56bbfbd8b1SPaul Mundt 	unsigned int nr_prio_regs;
57bbfbd8b1SPaul Mundt 	struct intc_sense_reg *sense_regs;
58bbfbd8b1SPaul Mundt 	unsigned int nr_sense_regs;
59bbfbd8b1SPaul Mundt 	char *name;
60bbfbd8b1SPaul Mundt 	struct intc_mask_reg *ack_regs;
61bbfbd8b1SPaul Mundt 	unsigned int nr_ack_regs;
62bbfbd8b1SPaul Mundt };
63bbfbd8b1SPaul Mundt 
64bbfbd8b1SPaul Mundt #define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
65bbfbd8b1SPaul Mundt #define DECLARE_INTC_DESC(symbol, chipname, vectors, groups,		\
66bbfbd8b1SPaul Mundt 	mask_regs, prio_regs, sense_regs)				\
67bbfbd8b1SPaul Mundt struct intc_desc symbol __initdata = {					\
68bbfbd8b1SPaul Mundt 	_INTC_ARRAY(vectors), _INTC_ARRAY(groups),			\
69bbfbd8b1SPaul Mundt 	_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs),			\
70bbfbd8b1SPaul Mundt 	_INTC_ARRAY(sense_regs),					\
71bbfbd8b1SPaul Mundt 	chipname,							\
72bbfbd8b1SPaul Mundt }
73bbfbd8b1SPaul Mundt 
74bbfbd8b1SPaul Mundt #define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups,	\
75bbfbd8b1SPaul Mundt 	mask_regs, prio_regs, sense_regs, ack_regs)			\
76bbfbd8b1SPaul Mundt struct intc_desc symbol __initdata = {					\
77bbfbd8b1SPaul Mundt 	_INTC_ARRAY(vectors), _INTC_ARRAY(groups),			\
78bbfbd8b1SPaul Mundt 	_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs),			\
79bbfbd8b1SPaul Mundt 	_INTC_ARRAY(sense_regs),					\
80bbfbd8b1SPaul Mundt 	chipname,							\
81bbfbd8b1SPaul Mundt 	_INTC_ARRAY(ack_regs),						\
82bbfbd8b1SPaul Mundt }
83bbfbd8b1SPaul Mundt 
84bbfbd8b1SPaul Mundt void __init register_intc_controller(struct intc_desc *desc);
85bbfbd8b1SPaul Mundt int intc_set_priority(unsigned int irq, unsigned int prio);
86bbfbd8b1SPaul Mundt 
87*45b9deafSPaul Mundt int reserve_irq_vector(unsigned int irq);
88*45b9deafSPaul Mundt void reserve_irq_legacy(void);
89*45b9deafSPaul Mundt 
90bbfbd8b1SPaul Mundt #endif /* __SH_INTC_H */
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