include/linux/sh_intc.h

Source file repositories/reference/linux-study-clean/include/linux/sh_intc.h

File Facts

System
Linux kernel
Corpus path
include/linux/sh_intc.h
Extension
.h
Size
3713 bytes
Lines
154
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct intc_vect {
	intc_enum enum_id;
	unsigned short vect;
};

#define INTC_VECT(enum_id, vect) { enum_id, vect }
#define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))

struct intc_group {
	intc_enum enum_id;
	intc_enum enum_ids[32];
};

#define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }

struct intc_subgroup {
	unsigned long reg, reg_width;
	intc_enum parent_id;
	intc_enum enum_ids[32];
};

struct intc_mask_reg {
	unsigned long set_reg, clr_reg, reg_width;
	intc_enum enum_ids[32];
#ifdef CONFIG_INTC_BALANCING
	unsigned long dist_reg;
#endif
#ifdef CONFIG_SMP
	unsigned long smp;
#endif
};

struct intc_prio_reg {
	unsigned long set_reg, clr_reg, reg_width, field_width;
	intc_enum enum_ids[16];
#ifdef CONFIG_SMP
	unsigned long smp;
#endif
};

struct intc_sense_reg {
	unsigned long reg, reg_width, field_width;
	intc_enum enum_ids[16];
};

#ifdef CONFIG_INTC_BALANCING
#define INTC_SMP_BALANCING(reg)	.dist_reg = (reg)
#else
#define INTC_SMP_BALANCING(reg)
#endif

#ifdef CONFIG_SMP
#define INTC_SMP(stride, nr)	.smp = (stride) | ((nr) << 8)
#else
#define INTC_SMP(stride, nr)
#endif

struct intc_hw_desc {
	struct intc_vect *vectors;
	unsigned int nr_vectors;
	struct intc_group *groups;
	unsigned int nr_groups;
	struct intc_mask_reg *mask_regs;
	unsigned int nr_mask_regs;
	struct intc_prio_reg *prio_regs;
	unsigned int nr_prio_regs;
	struct intc_sense_reg *sense_regs;
	unsigned int nr_sense_regs;
	struct intc_mask_reg *ack_regs;
	unsigned int nr_ack_regs;
	struct intc_subgroup *subgroups;
	unsigned int nr_subgroups;
};

#define _INTC_SIZEOF_OR_ZERO(a) (_Generic(a,                 \
                                 typeof(NULL):  0,           \
                                 default:       sizeof(a)))
#define _INTC_ARRAY(a) a, _INTC_SIZEOF_OR_ZERO(a)/sizeof(*a)

#define INTC_HW_DESC(vectors, groups, mask_regs,	\
		     prio_regs,	sense_regs, ack_regs)	\
{							\
	_INTC_ARRAY(vectors), _INTC_ARRAY(groups),	\
	_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs),	\
	_INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs),	\
}

struct intc_desc {
	char *name;
	struct resource *resource;

Annotation

Implementation Notes