arch/xtensa/include/asm/mtd-xip.h

File Facts

System

Linux kernel

Corpus path

arch/xtensa/include/asm/mtd-xip.h

Extension

.h

Size

441 bytes

Lines

15

Domain

Architecture Layer

Bucket

arch/xtensa

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

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

• asm/processor.h

Detected Declarations

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

Annotated Snippet

#ifndef _ASM_MTD_XIP_H
#define _ASM_MTD_XIP_H

#include <asm/processor.h>

#define xip_irqpending()	(xtensa_get_sr(interrupt) & xtensa_get_sr(intenable))
#define xip_currtime()		(xtensa_get_sr(ccount))
#define xip_elapsed_since(x)	((xtensa_get_sr(ccount) - (x)) / 1000) /* should work up to 1GHz */
#define xip_cpu_idle()		do { asm volatile ("waiti 0"); } while (0)

#endif /* _ASM_MTD_XIP_H */

Annotation

• Immediate include surface: `asm/processor.h`.
• Atlas domain: Architecture Layer / arch/xtensa.
• 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.