arch/sparc/include/asm/prom.h

File Facts

System

Linux kernel

Corpus path

arch/sparc/include/asm/prom.h

Extension

.h

Size

1841 bytes

Lines

60

Domain

Architecture Layer

Bucket

arch/sparc

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/of.h
• linux/types.h
• linux/of_pdt.h
• linux/proc_fs.h
• linux/mutex.h
• linux/atomic.h
• linux/irqdomain.h
• linux/spinlock.h

Detected Declarations

• struct of_irq_controller
• struct resource

Annotated Snippet

struct of_irq_controller {
	unsigned int	(*irq_build)(struct device_node *, unsigned int, void *);
	void		*data;
};

struct device_node *of_find_node_by_cpuid(int cpuid);
int of_set_property(struct device_node *node, const char *name, void *val, int len);
extern struct mutex of_set_property_mutex;
int of_getintprop_default(struct device_node *np,
			  const char *name,
				 int def);
int of_find_in_proplist(const char *list, const char *match, int len);

void prom_build_devicetree(void);
void of_populate_present_mask(void);
void of_fill_in_cpu_data(void);

struct resource;
void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned long size, char *name);
void of_iounmap(struct resource *res, void __iomem *base, unsigned long size);

extern struct device_node *of_console_device;
extern char *of_console_path;
extern char *of_console_options;

void irq_trans_init(struct device_node *dp);
char *build_path_component(struct device_node *dp);

#endif /* __KERNEL__ */
#endif /* _SPARC_PROM_H */

Annotation

• Immediate include surface: `linux/of.h`, `linux/types.h`, `linux/of_pdt.h`, `linux/proc_fs.h`, `linux/mutex.h`, `linux/atomic.h`, `linux/irqdomain.h`, `linux/spinlock.h`.
• Detected declarations: `struct of_irq_controller`, `struct resource`.
• Atlas domain: Architecture Layer / arch/sparc.
• Implementation status: source 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.