arch/arm/mach-highbank/smc.S

File Facts

System

Linux kernel

Corpus path

arch/arm/mach-highbank/smc.S

Extension

.S

Size

614 bytes

Lines

26

Domain

Architecture Layer

Bucket

arch/arm

Inferred role

Architecture Layer: arch/arm

Status

atlas-only

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

• linux/linkage.h

Detected Declarations

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

Annotated Snippet

#include <linux/linkage.h>

/*
 * This is common routine to manage secure monitor API
 * used to modify the PL310 secure registers.
 * 'r0' contains the value to be modified and 'r12' contains
 * the monitor API number.
 * Function signature : void highbank_smc1(u32 fn, u32 arg)
 */
	.arch armv7-a
	.arch_extension sec
ENTRY(highbank_smc1)
	stmfd   sp!, {r4-r11, lr}
	mov	r12, r0
	mov 	r0, r1
	dsb
	smc	#0
	ldmfd   sp!, {r4-r11, pc}
ENDPROC(highbank_smc1)

Annotation

• Immediate include surface: `linux/linkage.h`.
• Atlas domain: Architecture Layer / arch/arm.
• 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.