lib/raid/raid6/arm/neon.uc

File Facts

System

Linux kernel

Corpus path

lib/raid/raid6/arm/neon.uc

Extension

.uc

Size

3930 bytes

Lines

154

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.

Dependency Surface

• arm_neon.h
• arm/neon.h

Detected Declarations

• function SHLBYTE
• function MASK
• function PMUL

Annotated Snippet

switch (z) {
		case 2:
			w2$$ = vshrq_n_u8(wq$$, 5);
			w1$$ = vshlq_n_u8(wq$$, 3);

			w2$$ = PMUL(w2$$, x1d);
			wq$$ = veorq_u8(w1$$, w2$$);
			break;
		case 1:
			w2$$ = vshrq_n_u8(wq$$, 6);
			w1$$ = vshlq_n_u8(wq$$, 2);

			w2$$ = PMUL(w2$$, x1d);
			wq$$ = veorq_u8(w1$$, w2$$);
			break;
		case 0:
			w2$$ = MASK(wq$$);
			w1$$ = SHLBYTE(wq$$);

			w2$$ = vandq_u8(w2$$, x1d);
			wq$$ = veorq_u8(w1$$, w2$$);
		}
		w1$$ = vld1q_u8(&q[d+NSIZE*$$]);
		wq$$ = veorq_u8(wq$$, w1$$);

		vst1q_u8(&p[d+NSIZE*$$], wp$$);
		vst1q_u8(&q[d+NSIZE*$$], wq$$);
	}
}

Annotation

• Immediate include surface: `arm_neon.h`, `arm/neon.h`.
• Detected declarations: `function SHLBYTE`, `function MASK`, `function PMUL`.
• 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.