drivers/sh/intc/internals.h

File Facts

System

Linux kernel

Corpus path

drivers/sh/intc/internals.h

Extension

.h

Size

5643 bytes

Lines

192

Domain

Driver Families

Bucket

drivers/sh

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/sh_intc.h
• linux/irq.h
• linux/irqdomain.h
• linux/list.h
• linux/kernel.h
• linux/types.h
• linux/radix-tree.h
• linux/device.h

Detected Declarations

• struct intc_handle_int
• struct intc_window
• struct intc_map_entry
• struct intc_subgroup_entry
• struct intc_desc_int
• function activate_irq
• function intc_handle_int_cmp
• function intc_balancing_enable

Annotated Snippet

extern const struct bus_type intc_subsys;

unsigned int intc_get_dfl_prio_level(void);
unsigned int intc_get_prio_level(unsigned int irq);
void intc_set_prio_level(unsigned int irq, unsigned int level);

/* handle.c */
unsigned int intc_get_mask_handle(struct intc_desc *desc,
				  struct intc_desc_int *d,
				  intc_enum enum_id, int do_grps);
unsigned int intc_get_prio_handle(struct intc_desc *desc,
				  struct intc_desc_int *d,
				  intc_enum enum_id, int do_grps);
unsigned int intc_get_sense_handle(struct intc_desc *desc,
				   struct intc_desc_int *d,
				   intc_enum enum_id);
void intc_set_ack_handle(unsigned int irq, struct intc_desc *desc,
			 struct intc_desc_int *d, intc_enum id);
unsigned long intc_get_ack_handle(unsigned int irq);
void intc_enable_disable_enum(struct intc_desc *desc, struct intc_desc_int *d,
			      intc_enum enum_id, int enable);

/* irqdomain.c */
void intc_irq_domain_init(struct intc_desc_int *d, struct intc_hw_desc *hw);

/* virq.c */
void intc_subgroup_init(struct intc_desc *desc, struct intc_desc_int *d);
void intc_irq_xlate_set(unsigned int irq, intc_enum id, struct intc_desc_int *d);
struct intc_map_entry *intc_irq_xlate_get(unsigned int irq);

Annotation

• Immediate include surface: `linux/sh_intc.h`, `linux/irq.h`, `linux/irqdomain.h`, `linux/list.h`, `linux/kernel.h`, `linux/types.h`, `linux/radix-tree.h`, `linux/device.h`.
• Detected declarations: `struct intc_handle_int`, `struct intc_window`, `struct intc_map_entry`, `struct intc_subgroup_entry`, `struct intc_desc_int`, `function activate_irq`, `function intc_handle_int_cmp`, `function intc_balancing_enable`.
• Atlas domain: Driver Families / drivers/sh.
• Implementation status: pattern implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.