arch/powerpc/include/asm/mce.h

File Facts

System

Linux kernel

Corpus path

arch/powerpc/include/asm/mce.h

Extension

.h

Size

6736 bytes

Lines

269

Domain

Architecture Layer

Bucket

arch/powerpc

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/bitops.h

Detected Declarations

• struct machine_check_event
• struct mce_error_info
• struct mce_info
• struct pt_regs
• struct notifier_block
• enum MCE_Version
• enum MCE_Severity
• enum MCE_Disposition
• enum MCE_Initiator
• enum MCE_ErrorType
• enum MCE_ErrorClass
• enum MCE_UeErrorType
• enum MCE_SlbErrorType
• enum MCE_EratErrorType
• enum MCE_TlbErrorType
• enum MCE_UserErrorType
• enum MCE_RaErrorType
• enum MCE_LinkErrorType
• function mce_run_irq_context_handlers
• function mce_init

Annotated Snippet

struct machine_check_event {
	enum MCE_Version	version:8;
	u8			in_use;
	enum MCE_Severity	severity:8;
	enum MCE_Initiator	initiator:8;
	enum MCE_ErrorType	error_type:8;
	enum MCE_ErrorClass	error_class:8;
	enum MCE_Disposition	disposition:8;
	bool			sync_error;
	u16			cpu;
	u64			gpr3;
	u64			srr0;
	u64			srr1;
	union {
		struct {
			enum MCE_UeErrorType ue_error_type:8;
			u8		effective_address_provided;
			u8		physical_address_provided;
			u8		ignore_event;
			u8		reserved_1[4];
			u64		effective_address;
			u64		physical_address;
			u8		reserved_2[8];
		} ue_error;

		struct {
			enum MCE_SlbErrorType slb_error_type:8;
			u8		effective_address_provided;
			u8		reserved_1[6];
			u64		effective_address;
			u8		reserved_2[16];
		} slb_error;

		struct {
			enum MCE_EratErrorType erat_error_type:8;
			u8		effective_address_provided;
			u8		reserved_1[6];
			u64		effective_address;
			u8		reserved_2[16];
		} erat_error;

		struct {
			enum MCE_TlbErrorType tlb_error_type:8;
			u8		effective_address_provided;
			u8		reserved_1[6];
			u64		effective_address;
			u8		reserved_2[16];
		} tlb_error;

		struct {
			enum MCE_UserErrorType user_error_type:8;
			u8		effective_address_provided;
			u8		reserved_1[6];
			u64		effective_address;
			u8		reserved_2[16];
		} user_error;

		struct {
			enum MCE_RaErrorType ra_error_type:8;
			u8		effective_address_provided;
			u8		reserved_1[6];
			u64		effective_address;
			u8		reserved_2[16];
		} ra_error;

		struct {
			enum MCE_LinkErrorType link_error_type:8;
			u8		effective_address_provided;
			u8		reserved_1[6];
			u64		effective_address;
			u8		reserved_2[16];
		} link_error;
	} u;
};

struct mce_error_info {
	enum MCE_ErrorType error_type:8;
	union {
		enum MCE_UeErrorType ue_error_type:8;
		enum MCE_SlbErrorType slb_error_type:8;
		enum MCE_EratErrorType erat_error_type:8;
		enum MCE_TlbErrorType tlb_error_type:8;
		enum MCE_UserErrorType user_error_type:8;
		enum MCE_RaErrorType ra_error_type:8;
		enum MCE_LinkErrorType link_error_type:8;
	} u;
	enum MCE_Severity	severity:8;
	enum MCE_Initiator	initiator:8;
	enum MCE_ErrorClass	error_class:8;
	bool			sync_error;

Annotation

• Immediate include surface: `linux/bitops.h`.
• Detected declarations: `struct machine_check_event`, `struct mce_error_info`, `struct mce_info`, `struct pt_regs`, `struct notifier_block`, `enum MCE_Version`, `enum MCE_Severity`, `enum MCE_Disposition`, `enum MCE_Initiator`, `enum MCE_ErrorType`.
• Atlas domain: Architecture Layer / arch/powerpc.
• 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.