arch/arm/include/asm/glue-df.h

Source file repositories/reference/linux-study-clean/arch/arm/include/asm/glue-df.h

File Facts

System: Linux kernel
Corpus path: arch/arm/include/asm/glue-df.h
Extension: .h
Size: 2110 bytes
Lines: 100
Domain: Architecture Layer
Bucket: arch/arm
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/glue.h

Detected Declarations

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

Annotated Snippet

#ifndef ASM_GLUE_DF_H
#define ASM_GLUE_DF_H

#include <asm/glue.h>

/*
 *	Data Abort Model
 *	================
 *
 *	We have the following to choose from:
 *	  arm7		- ARM7 style
 *	  v4_early	- ARMv4 without Thumb early abort handler
 *	  v4t_late	- ARMv4 with Thumb late abort handler
 *	  v4t_early	- ARMv4 with Thumb early abort handler
 *	  v5t_early	- ARMv5 with Thumb early abort handler
 *	  v5tj_early	- ARMv5 with Thumb and Java early abort handler
 *	  xscale	- ARMv5 with Thumb with Xscale extensions
 *	  v6_early	- ARMv6 generic early abort handler
 *	  v7_early	- ARMv7 generic early abort handler
 */
#undef CPU_DABORT_HANDLER
#undef MULTI_DABORT

#ifdef CONFIG_CPU_ABRT_EV4
# ifdef CPU_DABORT_HANDLER
#  define MULTI_DABORT 1
# else
#  define CPU_DABORT_HANDLER v4_early_abort
# endif
#endif

#ifdef CONFIG_CPU_ABRT_LV4T
# ifdef CPU_DABORT_HANDLER
#  define MULTI_DABORT 1
# else
#  define CPU_DABORT_HANDLER v4t_late_abort
# endif
#endif

#ifdef CONFIG_CPU_ABRT_EV4T
# ifdef CPU_DABORT_HANDLER
#  define MULTI_DABORT 1
# else
#  define CPU_DABORT_HANDLER v4t_early_abort
# endif
#endif

#ifdef CONFIG_CPU_ABRT_EV5T
# ifdef CPU_DABORT_HANDLER
#  define MULTI_DABORT 1
# else
#  define CPU_DABORT_HANDLER v5t_early_abort
# endif
#endif

#ifdef CONFIG_CPU_ABRT_EV5TJ
# ifdef CPU_DABORT_HANDLER
#  define MULTI_DABORT 1
# else
#  define CPU_DABORT_HANDLER v5tj_early_abort
# endif
#endif

#ifdef CONFIG_CPU_ABRT_EV6
# ifdef CPU_DABORT_HANDLER
#  define MULTI_DABORT 1
# else
#  define CPU_DABORT_HANDLER v6_early_abort
# endif
#endif

#ifdef CONFIG_CPU_ABRT_EV7
# ifdef CPU_DABORT_HANDLER
#  define MULTI_DABORT 1
# else
#  define CPU_DABORT_HANDLER v7_early_abort
# endif
#endif

#ifdef CONFIG_CPU_ABRT_NOMMU
# ifdef CPU_DABORT_HANDLER
#  define MULTI_DABORT 1
# else
#  define CPU_DABORT_HANDLER nommu_early_abort
# endif
#endif

#ifndef CPU_DABORT_HANDLER
#error Unknown data abort handler type
#endif

Annotation

Immediate include surface: `asm/glue.h`.
Atlas domain: Architecture Layer / arch/arm.
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.