lib/crypto/arm64/sha512.h

File Facts

System

Linux kernel

Corpus path

lib/crypto/arm64/sha512.h

Extension

.h

Size

956 bytes

Lines

36

Domain

Kernel Services

Bucket

lib

Inferred role

Kernel Services: implementation source

Status

source implementation candidate

Why This File Exists

Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.

• Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• asm/simd.h
• linux/cpufeature.h

Detected Declarations

• function sha512_blocks
• function sha512_mod_init_arch

Annotated Snippet

likely(may_use_simd())) {
		scoped_ksimd()
			sha512_ce_transform(state, data, nblocks);
	} else {
		sha512_block_data_order(state, data, nblocks);
	}
}

#define sha512_mod_init_arch sha512_mod_init_arch
static void sha512_mod_init_arch(void)
{
	if (cpu_have_named_feature(SHA512))
		static_branch_enable(&have_sha512_insns);
}

Annotation

• Immediate include surface: `asm/simd.h`, `linux/cpufeature.h`.
• Detected declarations: `function sha512_blocks`, `function sha512_mod_init_arch`.
• Atlas domain: Kernel Services / lib.
• 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.