lib/crypto/arm64/sm3-ce-core.S

File Facts

System

Linux kernel

Corpus path

lib/crypto/arm64/sm3-ce-core.S

Extension

.S

Size

3230 bytes

Lines

139

Domain

Kernel Services

Bucket

lib

Inferred role

Kernel Services: lib

Status

atlas-only

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

• linux/linkage.h
• asm/assembler.h

Detected Declarations

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

Annotated Snippet

#include <linux/linkage.h>
#include <asm/assembler.h>

	.irp		b, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
	.set		.Lv\b\().4s, \b
	.endr

	.macro		sm3partw1, rd, rn, rm
	.inst		0xce60c000 | .L\rd | (.L\rn << 5) | (.L\rm << 16)
	.endm

	.macro		sm3partw2, rd, rn, rm
	.inst		0xce60c400 | .L\rd | (.L\rn << 5) | (.L\rm << 16)
	.endm

	.macro		sm3ss1, rd, rn, rm, ra
	.inst		0xce400000 | .L\rd | (.L\rn << 5) | (.L\ra << 10) | (.L\rm << 16)
	.endm

	.macro		sm3tt1a, rd, rn, rm, imm2
	.inst		0xce408000 | .L\rd | (.L\rn << 5) | ((\imm2) << 12) | (.L\rm << 16)
	.endm

	.macro		sm3tt1b, rd, rn, rm, imm2
	.inst		0xce408400 | .L\rd | (.L\rn << 5) | ((\imm2) << 12) | (.L\rm << 16)
	.endm

	.macro		sm3tt2a, rd, rn, rm, imm2
	.inst		0xce408800 | .L\rd | (.L\rn << 5) | ((\imm2) << 12) | (.L\rm << 16)
	.endm

	.macro		sm3tt2b, rd, rn, rm, imm2
	.inst		0xce408c00 | .L\rd | (.L\rn << 5) | ((\imm2) << 12) | (.L\rm << 16)
	.endm

	.macro		round, ab, s0, t0, t1, i
	sm3ss1		v5.4s, v8.4s, \t0\().4s, v9.4s
	shl		\t1\().4s, \t0\().4s, #1
	sri		\t1\().4s, \t0\().4s, #31
	sm3tt1\ab	v8.4s, v5.4s, v10.4s, \i
	sm3tt2\ab	v9.4s, v5.4s, \s0\().4s, \i
	.endm

	.macro		qround, ab, s0, s1, s2, s3, s4
	.ifnb		\s4
	ext		\s4\().16b, \s1\().16b, \s2\().16b, #12
	ext		v6.16b, \s0\().16b, \s1\().16b, #12
	ext		v7.16b, \s2\().16b, \s3\().16b, #8
	sm3partw1	\s4\().4s, \s0\().4s, \s3\().4s
	.endif

	eor		v10.16b, \s0\().16b, \s1\().16b

	round		\ab, \s0, v11, v12, 0
	round		\ab, \s0, v12, v11, 1
	round		\ab, \s0, v11, v12, 2
	round		\ab, \s0, v12, v11, 3

	.ifnb		\s4
	sm3partw2	\s4\().4s, v7.4s, v6.4s
	.endif
	.endm

	/*
	 * void sm3_ce_transform(struct sm3_block_state *state,
	 *			 const u8 *data, size_t nblocks)
	 */
	.text
SYM_FUNC_START(sm3_ce_transform)
	/* load state */

Annotation

• Immediate include surface: `linux/linkage.h`, `asm/assembler.h`.
• Atlas domain: Kernel Services / lib.
• Implementation status: atlas-only.

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.