arch/riscv/include/asm/fpu.h

File Facts

System

Linux kernel

Corpus path

arch/riscv/include/asm/fpu.h

Extension

.h

Size

291 bytes

Lines

17

Domain

Architecture Layer

Bucket

arch/riscv

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.

Dependency Surface

• asm/switch_to.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _ASM_RISCV_FPU_H
#define _ASM_RISCV_FPU_H

#include <asm/switch_to.h>

#define kernel_fpu_available()	has_fpu()

void kernel_fpu_begin(void);
void kernel_fpu_end(void);

#endif /* ! _ASM_RISCV_FPU_H */

Annotation

• Immediate include surface: `asm/switch_to.h`.
• Atlas domain: Architecture Layer / arch/riscv.
• 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.