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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __SH_INTC_H
3#define __SH_INTC_H
4
5#include <linux/ioport.h>
6
7#ifdef CONFIG_SUPERH
8#define INTC_NR_IRQS 512
9#else
10#define INTC_NR_IRQS 1024
11#endif
12
13/*
14 * Convert back and forth between INTEVT and IRQ values.
15 */
16#ifdef CONFIG_CPU_HAS_INTEVT
17#define evt2irq(evt) (((evt) >> 5) - 16)
18#define irq2evt(irq) (((irq) + 16) << 5)
19#else
20#define evt2irq(evt) (evt)
21#define irq2evt(irq) (irq)
22#endif
23
24typedef unsigned char intc_enum;
25
26struct intc_vect {
27 intc_enum enum_id;
28 unsigned short vect;
29};
30
31#define INTC_VECT(enum_id, vect) { enum_id, vect }
32#define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
33
34struct intc_group {
35 intc_enum enum_id;
36 intc_enum enum_ids[32];
37};
38
39#define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }
40
41struct intc_subgroup {
42 unsigned long reg, reg_width;
43 intc_enum parent_id;
44 intc_enum enum_ids[32];
45};
46
47struct intc_mask_reg {
48 unsigned long set_reg, clr_reg, reg_width;
49 intc_enum enum_ids[32];
50#ifdef CONFIG_INTC_BALANCING
51 unsigned long dist_reg;
52#endif
53#ifdef CONFIG_SMP
54 unsigned long smp;
55#endif
56};
57
58struct intc_prio_reg {
59 unsigned long set_reg, clr_reg, reg_width, field_width;
60 intc_enum enum_ids[16];
61#ifdef CONFIG_SMP
62 unsigned long smp;
63#endif
64};
65
66struct intc_sense_reg {
67 unsigned long reg, reg_width, field_width;
68 intc_enum enum_ids[16];
69};
70
71#ifdef CONFIG_INTC_BALANCING
72#define INTC_SMP_BALANCING(reg) .dist_reg = (reg)
73#else
74#define INTC_SMP_BALANCING(reg)
75#endif
76
77#ifdef CONFIG_SMP
78#define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
79#else
80#define INTC_SMP(stride, nr)
81#endif
82
83struct intc_hw_desc {
84 struct intc_vect *vectors;
85 unsigned int nr_vectors;
86 struct intc_group *groups;
87 unsigned int nr_groups;
88 struct intc_mask_reg *mask_regs;
89 unsigned int nr_mask_regs;
90 struct intc_prio_reg *prio_regs;
91 unsigned int nr_prio_regs;
92 struct intc_sense_reg *sense_regs;
93 unsigned int nr_sense_regs;
94 struct intc_mask_reg *ack_regs;
95 unsigned int nr_ack_regs;
96 struct intc_subgroup *subgroups;
97 unsigned int nr_subgroups;
98};
99
100#define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
101
102#define INTC_HW_DESC(vectors, groups, mask_regs, \
103 prio_regs, sense_regs, ack_regs) \
104{ \
105 _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
106 _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
107 _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
108}
109
110struct intc_desc {
111 char *name;
112 struct resource *resource;
113 unsigned int num_resources;
114 intc_enum force_enable;
115 intc_enum force_disable;
116 bool skip_syscore_suspend;
117 struct intc_hw_desc hw;
118};
119
120#define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \
121 mask_regs, prio_regs, sense_regs) \
122struct intc_desc symbol __initdata = { \
123 .name = chipname, \
124 .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
125 prio_regs, sense_regs, NULL), \
126}
127
128#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \
129 mask_regs, prio_regs, sense_regs, ack_regs) \
130struct intc_desc symbol __initdata = { \
131 .name = chipname, \
132 .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
133 prio_regs, sense_regs, ack_regs), \
134}
135
136int register_intc_controller(struct intc_desc *desc);
137int intc_set_priority(unsigned int irq, unsigned int prio);
138int intc_irq_lookup(const char *chipname, intc_enum enum_id);
139void intc_finalize(void);
140
141#ifdef CONFIG_INTC_USERIMASK
142int register_intc_userimask(unsigned long addr);
143#else
144static inline int register_intc_userimask(unsigned long addr)
145{
146 return 0;
147}
148#endif
149
150#endif /* __SH_INTC_H */
151

Warning: That file was not part of the compilation database. It may have many parsing errors.