arch/nios2/include/asm/cpuinfo.h

File Facts

System

Linux kernel

Corpus path

arch/nios2/include/asm/cpuinfo.h

Extension

.h

Size

851 bytes

Lines

47

Domain

Architecture Layer

Bucket

arch/nios2

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/types.h

Detected Declarations

• struct cpuinfo

Annotated Snippet

struct cpuinfo {
	/* Core CPU configuration */
	char cpu_impl[12];
	u32 cpu_clock_freq;
	bool mmu;
	bool has_div;
	bool has_mul;
	bool has_mulx;
	bool has_bmx;
	bool has_cdx;

	/* CPU caches */
	u32 icache_line_size;
	u32 icache_size;
	u32 dcache_line_size;
	u32 dcache_size;

	/* TLB */
	u32 tlb_pid_num_bits;	/* number of bits used for the PID in TLBMISC */
	u32 tlb_num_ways;
	u32 tlb_num_ways_log2;
	u32 tlb_num_entries;
	u32 tlb_num_lines;
	u32 tlb_ptr_sz;

	/* Addresses */
	u32 reset_addr;
	u32 exception_addr;
	u32 fast_tlb_miss_exc_addr;
};

extern struct cpuinfo cpuinfo;

extern void setup_cpuinfo(void);

#endif /* _ASM_NIOS2_CPUINFO_H */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct cpuinfo`.
• Atlas domain: Architecture Layer / arch/nios2.
• 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.