arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h

File Facts

System

Linux kernel

Corpus path

arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h

Extension

.h

Size

1417 bytes

Lines

60

Domain

Architecture Layer

Bucket

arch/mips

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

• 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

#ifndef __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H
#define __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H

/*
 * The Atheros AR531x/AR231x SoCs have MIPS 4Kc/4KEc core.
 */
#define cpu_has_tlb			1
#define cpu_has_4kex			1
#define cpu_has_3k_cache		0
#define cpu_has_4k_cache		1
#define cpu_has_sb1_cache		0
#define cpu_has_fpu			0
#define cpu_has_32fpr			0
#define cpu_has_counter			1
#define cpu_has_ejtag			1

#if !defined(CONFIG_SOC_AR5312)
#  define cpu_has_llsc			1
#else
/*
 * The MIPS 4Kc V0.9 core in the AR5312/AR2312 have problems with the
 * ll/sc instructions.
 */
#  define cpu_has_llsc			0
#endif

#define cpu_has_mips16			0
#define cpu_has_mips16e2		0
#define cpu_has_mdmx			0
#define cpu_has_mips3d			0
#define cpu_has_smartmips		0

#define cpu_has_mips32r1		1

#if !defined(CONFIG_SOC_AR5312)
#  define cpu_has_mips32r2		1
#endif

#define cpu_has_mips64r1		0
#define cpu_has_mips64r2		0

#define cpu_has_dsp			0
#define cpu_has_mipsmt			0

#define cpu_has_64bits			0
#define cpu_has_64bit_zero_reg		0
#define cpu_has_64bit_gp_regs		0

#endif /* __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H */

Annotation

• Atlas domain: Architecture Layer / arch/mips.
• 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.