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149 lines
3.4 KiB
149 lines
3.4 KiB
#ifndef __SH_INTC_H |
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#define __SH_INTC_H |
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#include <linux/ioport.h> |
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#ifdef CONFIG_SUPERH |
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#define INTC_NR_IRQS 512 |
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#else |
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#define INTC_NR_IRQS 1024 |
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#endif |
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/* |
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* Convert back and forth between INTEVT and IRQ values. |
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*/ |
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#ifdef CONFIG_CPU_HAS_INTEVT |
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#define evt2irq(evt) (((evt) >> 5) - 16) |
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#define irq2evt(irq) (((irq) + 16) << 5) |
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#else |
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#define evt2irq(evt) (evt) |
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#define irq2evt(irq) (irq) |
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#endif |
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typedef unsigned char intc_enum; |
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struct intc_vect { |
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intc_enum enum_id; |
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unsigned short vect; |
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}; |
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#define INTC_VECT(enum_id, vect) { enum_id, vect } |
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#define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq)) |
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struct intc_group { |
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intc_enum enum_id; |
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intc_enum enum_ids[32]; |
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}; |
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#define INTC_GROUP(enum_id, ids...) { enum_id, { ids } } |
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struct intc_subgroup { |
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unsigned long reg, reg_width; |
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intc_enum parent_id; |
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intc_enum enum_ids[32]; |
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}; |
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struct intc_mask_reg { |
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unsigned long set_reg, clr_reg, reg_width; |
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intc_enum enum_ids[32]; |
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#ifdef CONFIG_INTC_BALANCING |
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unsigned long dist_reg; |
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#endif |
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#ifdef CONFIG_SMP |
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unsigned long smp; |
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#endif |
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}; |
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struct intc_prio_reg { |
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unsigned long set_reg, clr_reg, reg_width, field_width; |
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intc_enum enum_ids[16]; |
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#ifdef CONFIG_SMP |
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unsigned long smp; |
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#endif |
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}; |
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struct intc_sense_reg { |
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unsigned long reg, reg_width, field_width; |
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intc_enum enum_ids[16]; |
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}; |
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#ifdef CONFIG_INTC_BALANCING |
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#define INTC_SMP_BALANCING(reg) .dist_reg = (reg) |
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#else |
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#define INTC_SMP_BALANCING(reg) |
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#endif |
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#ifdef CONFIG_SMP |
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#define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8) |
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#else |
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#define INTC_SMP(stride, nr) |
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#endif |
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struct intc_hw_desc { |
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struct intc_vect *vectors; |
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unsigned int nr_vectors; |
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struct intc_group *groups; |
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unsigned int nr_groups; |
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struct intc_mask_reg *mask_regs; |
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unsigned int nr_mask_regs; |
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struct intc_prio_reg *prio_regs; |
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unsigned int nr_prio_regs; |
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struct intc_sense_reg *sense_regs; |
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unsigned int nr_sense_regs; |
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struct intc_mask_reg *ack_regs; |
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unsigned int nr_ack_regs; |
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struct intc_subgroup *subgroups; |
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unsigned int nr_subgroups; |
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}; |
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#define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a) |
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#define INTC_HW_DESC(vectors, groups, mask_regs, \ |
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prio_regs, sense_regs, ack_regs) \ |
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{ \ |
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_INTC_ARRAY(vectors), _INTC_ARRAY(groups), \ |
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_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \ |
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_INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \ |
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} |
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struct intc_desc { |
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char *name; |
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struct resource *resource; |
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unsigned int num_resources; |
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intc_enum force_enable; |
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intc_enum force_disable; |
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bool skip_syscore_suspend; |
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struct intc_hw_desc hw; |
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}; |
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#define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \ |
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mask_regs, prio_regs, sense_regs) \ |
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struct intc_desc symbol __initdata = { \ |
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.name = chipname, \ |
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.hw = INTC_HW_DESC(vectors, groups, mask_regs, \ |
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prio_regs, sense_regs, NULL), \ |
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} |
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#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \ |
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mask_regs, prio_regs, sense_regs, ack_regs) \ |
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struct intc_desc symbol __initdata = { \ |
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.name = chipname, \ |
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.hw = INTC_HW_DESC(vectors, groups, mask_regs, \ |
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prio_regs, sense_regs, ack_regs), \ |
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} |
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int register_intc_controller(struct intc_desc *desc); |
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int intc_set_priority(unsigned int irq, unsigned int prio); |
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int intc_irq_lookup(const char *chipname, intc_enum enum_id); |
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void intc_finalize(void); |
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#ifdef CONFIG_INTC_USERIMASK |
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int register_intc_userimask(unsigned long addr); |
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#else |
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static inline int register_intc_userimask(unsigned long addr) |
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{ |
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return 0; |
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} |
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#endif |
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#endif /* __SH_INTC_H */
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