arch/arm/include/debug/asm9260.S

File Facts

System

Linux kernel

Corpus path

arch/arm/include/debug/asm9260.S

Extension

.S

Size

645 bytes

Lines

29

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

• No C-style include directives detected by the generator.

Detected Declarations

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

Annotated Snippet

.macro	addruart, rp, rv, tmp
		ldr	\rp, = CONFIG_DEBUG_UART_PHYS
		ldr	\rv, = CONFIG_DEBUG_UART_VIRT
		.endm

		.macro	waituarttxrdy,rd,rx
		.endm

		.macro	waituartcts,rd,rx
		.endm

		.macro	senduart,rd,rx
		str	\rd, [\rx, #0x50]	@ TXDATA
		.endm

		.macro	busyuart,rd,rx
1002:		ldr	\rd, [\rx, #0x60]	@ STAT
		tst	\rd, #1 << 27		@ TXEMPTY
		beq	1002b			@ wait until transmit done
		.endm

Annotation

• 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.