arch/mips/mm/tlbex-fault.S

File Facts

System

Linux kernel

Corpus path

arch/mips/mm/tlbex-fault.S

Extension

.S

Size

664 bytes

Lines

29

Domain

Architecture Layer

Bucket

arch/mips

Inferred role

Architecture Layer: arch/mips

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

• asm/mipsregs.h
• asm/regdef.h
• asm/stackframe.h

Detected Declarations

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

Annotated Snippet

#include <asm/mipsregs.h>
#include <asm/regdef.h>
#include <asm/stackframe.h>

	.macro tlb_do_page_fault, write
	NESTED(tlb_do_page_fault_\write, PT_SIZE, sp)
	.cfi_signal_frame
	SAVE_ALL docfi=1
	MFC0	a2, CP0_BADVADDR
	KMODE
	move	a0, sp
	REG_S	a2, PT_BVADDR(sp)
	li	a1, \write
	jal	do_page_fault
	j	ret_from_exception
	END(tlb_do_page_fault_\write)
	.endm

	tlb_do_page_fault 0
	tlb_do_page_fault 1

Annotation

• Immediate include surface: `asm/mipsregs.h`, `asm/regdef.h`, `asm/stackframe.h`.
• Atlas domain: Architecture Layer / arch/mips.
• 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.