1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */
2bbfbd8b1SPaul Mundt #ifndef __SH_INTC_H
3bbfbd8b1SPaul Mundt #define __SH_INTC_H
4bbfbd8b1SPaul Mundt
5dec710b7SMagnus Damm #include <linux/ioport.h>
6dec710b7SMagnus Damm
70f552393SRob Herring #ifdef CONFIG_SUPERH
80f552393SRob Herring #define INTC_NR_IRQS 512
90f552393SRob Herring #else
100f552393SRob Herring #define INTC_NR_IRQS 1024
110f552393SRob Herring #endif
120f552393SRob Herring
137f1e7637SRob Herring /*
147f1e7637SRob Herring * Convert back and forth between INTEVT and IRQ values.
157f1e7637SRob Herring */
16*a8ac2961SSergey Shtylyov #ifdef CONFIG_CPU_HAS_INTEVT /* Avoid IRQ0 (invalid for platform devices) */
17*a8ac2961SSergey Shtylyov #define evt2irq(evt) ((evt) >> 5)
18*a8ac2961SSergey Shtylyov #define irq2evt(irq) ((irq) << 5)
197f1e7637SRob Herring #else
207f1e7637SRob Herring #define evt2irq(evt) (evt)
217f1e7637SRob Herring #define irq2evt(irq) (irq)
227f1e7637SRob Herring #endif
237f1e7637SRob Herring
24bbfbd8b1SPaul Mundt typedef unsigned char intc_enum;
25bbfbd8b1SPaul Mundt
26bbfbd8b1SPaul Mundt struct intc_vect {
27bbfbd8b1SPaul Mundt intc_enum enum_id;
28bbfbd8b1SPaul Mundt unsigned short vect;
29bbfbd8b1SPaul Mundt };
30bbfbd8b1SPaul Mundt
31bbfbd8b1SPaul Mundt #define INTC_VECT(enum_id, vect) { enum_id, vect }
32bbfbd8b1SPaul Mundt #define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
33bbfbd8b1SPaul Mundt
34bbfbd8b1SPaul Mundt struct intc_group {
35bbfbd8b1SPaul Mundt intc_enum enum_id;
36bbfbd8b1SPaul Mundt intc_enum enum_ids[32];
37bbfbd8b1SPaul Mundt };
38bbfbd8b1SPaul Mundt
39bbfbd8b1SPaul Mundt #define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }
40bbfbd8b1SPaul Mundt
41c1e30ad9SPaul Mundt struct intc_subgroup {
42c1e30ad9SPaul Mundt unsigned long reg, reg_width;
43c1e30ad9SPaul Mundt intc_enum parent_id;
44c1e30ad9SPaul Mundt intc_enum enum_ids[32];
45c1e30ad9SPaul Mundt };
46c1e30ad9SPaul Mundt
47bbfbd8b1SPaul Mundt struct intc_mask_reg {
48bbfbd8b1SPaul Mundt unsigned long set_reg, clr_reg, reg_width;
49bbfbd8b1SPaul Mundt intc_enum enum_ids[32];
50dc825b17SPaul Mundt #ifdef CONFIG_INTC_BALANCING
51dc825b17SPaul Mundt unsigned long dist_reg;
52dc825b17SPaul Mundt #endif
53bbfbd8b1SPaul Mundt #ifdef CONFIG_SMP
54bbfbd8b1SPaul Mundt unsigned long smp;
55bbfbd8b1SPaul Mundt #endif
56bbfbd8b1SPaul Mundt };
57bbfbd8b1SPaul Mundt
58bbfbd8b1SPaul Mundt struct intc_prio_reg {
59bbfbd8b1SPaul Mundt unsigned long set_reg, clr_reg, reg_width, field_width;
60bbfbd8b1SPaul Mundt intc_enum enum_ids[16];
61bbfbd8b1SPaul Mundt #ifdef CONFIG_SMP
62bbfbd8b1SPaul Mundt unsigned long smp;
63bbfbd8b1SPaul Mundt #endif
64bbfbd8b1SPaul Mundt };
65bbfbd8b1SPaul Mundt
66bbfbd8b1SPaul Mundt struct intc_sense_reg {
67bbfbd8b1SPaul Mundt unsigned long reg, reg_width, field_width;
68bbfbd8b1SPaul Mundt intc_enum enum_ids[16];
69bbfbd8b1SPaul Mundt };
70bbfbd8b1SPaul Mundt
71dc825b17SPaul Mundt #ifdef CONFIG_INTC_BALANCING
72dc825b17SPaul Mundt #define INTC_SMP_BALANCING(reg) .dist_reg = (reg)
73dc825b17SPaul Mundt #else
74dc825b17SPaul Mundt #define INTC_SMP_BALANCING(reg)
75dc825b17SPaul Mundt #endif
76dc825b17SPaul Mundt
77bbfbd8b1SPaul Mundt #ifdef CONFIG_SMP
78bbfbd8b1SPaul Mundt #define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
79bbfbd8b1SPaul Mundt #else
80bbfbd8b1SPaul Mundt #define INTC_SMP(stride, nr)
81bbfbd8b1SPaul Mundt #endif
82bbfbd8b1SPaul Mundt
83577cd758SMagnus Damm struct intc_hw_desc {
84bbfbd8b1SPaul Mundt struct intc_vect *vectors;
85bbfbd8b1SPaul Mundt unsigned int nr_vectors;
86bbfbd8b1SPaul Mundt struct intc_group *groups;
87bbfbd8b1SPaul Mundt unsigned int nr_groups;
88bbfbd8b1SPaul Mundt struct intc_mask_reg *mask_regs;
89bbfbd8b1SPaul Mundt unsigned int nr_mask_regs;
90bbfbd8b1SPaul Mundt struct intc_prio_reg *prio_regs;
91bbfbd8b1SPaul Mundt unsigned int nr_prio_regs;
92bbfbd8b1SPaul Mundt struct intc_sense_reg *sense_regs;
93bbfbd8b1SPaul Mundt unsigned int nr_sense_regs;
94bbfbd8b1SPaul Mundt struct intc_mask_reg *ack_regs;
95bbfbd8b1SPaul Mundt unsigned int nr_ack_regs;
96c1e30ad9SPaul Mundt struct intc_subgroup *subgroups;
97c1e30ad9SPaul Mundt unsigned int nr_subgroups;
98bbfbd8b1SPaul Mundt };
99bbfbd8b1SPaul Mundt
10025087082SMichael Karcher #define _INTC_SIZEOF_OR_ZERO(a) (_Generic(a, \
10125087082SMichael Karcher typeof(NULL): 0, \
10225087082SMichael Karcher default: sizeof(a)))
10325087082SMichael Karcher #define _INTC_ARRAY(a) a, _INTC_SIZEOF_OR_ZERO(a)/sizeof(*a)
104c1e30ad9SPaul Mundt
105577cd758SMagnus Damm #define INTC_HW_DESC(vectors, groups, mask_regs, \
106577cd758SMagnus Damm prio_regs, sense_regs, ack_regs) \
107577cd758SMagnus Damm { \
108577cd758SMagnus Damm _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
109577cd758SMagnus Damm _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
110577cd758SMagnus Damm _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
111577cd758SMagnus Damm }
112577cd758SMagnus Damm
113577cd758SMagnus Damm struct intc_desc {
114577cd758SMagnus Damm char *name;
115dec710b7SMagnus Damm struct resource *resource;
116dec710b7SMagnus Damm unsigned int num_resources;
117d5190953SMagnus Damm intc_enum force_enable;
118d85429a3SMagnus Damm intc_enum force_disable;
1190f966d74SRafael J. Wysocki bool skip_syscore_suspend;
120577cd758SMagnus Damm struct intc_hw_desc hw;
121577cd758SMagnus Damm };
122577cd758SMagnus Damm
123bbfbd8b1SPaul Mundt #define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \
124bbfbd8b1SPaul Mundt mask_regs, prio_regs, sense_regs) \
125bbfbd8b1SPaul Mundt struct intc_desc symbol __initdata = { \
126577cd758SMagnus Damm .name = chipname, \
127577cd758SMagnus Damm .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
128577cd758SMagnus Damm prio_regs, sense_regs, NULL), \
129bbfbd8b1SPaul Mundt }
130bbfbd8b1SPaul Mundt
131bbfbd8b1SPaul Mundt #define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \
132bbfbd8b1SPaul Mundt mask_regs, prio_regs, sense_regs, ack_regs) \
133bbfbd8b1SPaul Mundt struct intc_desc symbol __initdata = { \
134577cd758SMagnus Damm .name = chipname, \
135577cd758SMagnus Damm .hw = INTC_HW_DESC(vectors, groups, mask_regs, \
136577cd758SMagnus Damm prio_regs, sense_regs, ack_regs), \
137bbfbd8b1SPaul Mundt }
138bbfbd8b1SPaul Mundt
1392be6bb0cSPaul Mundt int register_intc_controller(struct intc_desc *desc);
140bbfbd8b1SPaul Mundt int intc_set_priority(unsigned int irq, unsigned int prio);
141d74310d3SPaul Mundt int intc_irq_lookup(const char *chipname, intc_enum enum_id);
142c1e30ad9SPaul Mundt void intc_finalize(void);
143bbfbd8b1SPaul Mundt
14443b8774dSPaul Mundt #ifdef CONFIG_INTC_USERIMASK
14543b8774dSPaul Mundt int register_intc_userimask(unsigned long addr);
14643b8774dSPaul Mundt #else
register_intc_userimask(unsigned long addr)14743b8774dSPaul Mundt static inline int register_intc_userimask(unsigned long addr)
14843b8774dSPaul Mundt {
14943b8774dSPaul Mundt return 0;
15043b8774dSPaul Mundt }
15143b8774dSPaul Mundt #endif
15243b8774dSPaul Mundt
153bbfbd8b1SPaul Mundt #endif /* __SH_INTC_H */
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