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