arch/mips/include/asm/dec/ecc.h
Source file repositories/reference/linux-study-clean/arch/mips/include/asm/dec/ecc.h
File Facts
- System
- Linux kernel
- Corpus path
arch/mips/include/asm/dec/ecc.h- Extension
.h- Size
- 1793 bytes
- Lines
- 52
- 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.
- Touches IRQ or DMA behavior; this matters for the representative real-device path.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/interrupt.h
Detected Declarations
struct pt_regs
Annotated Snippet
#ifndef __ASM_MIPS_DEC_ECC_H
#define __ASM_MIPS_DEC_ECC_H
/*
* Error Address Register bits.
* The register is r/wc -- any write clears it.
*/
#define KN0X_EAR_VALID (1<<31) /* error data valid, bus IRQ */
#define KN0X_EAR_CPU (1<<30) /* CPU/DMA transaction */
#define KN0X_EAR_WRITE (1<<29) /* write/read transaction */
#define KN0X_EAR_ECCERR (1<<28) /* ECC/timeout or overrun */
#define KN0X_EAR_RES_27 (1<<27) /* unused */
#define KN0X_EAR_ADDRESS (0x7ffffff<<0) /* address involved */
/*
* Error Syndrome Register bits.
* The register is frozen when EAR.VALID is set, otherwise it records bits
* from the last memory read. The register is r/wc -- any write clears it.
*/
#define KN0X_ESR_VLDHI (1<<31) /* error data valid hi word */
#define KN0X_ESR_CHKHI (0x7f<<24) /* check bits read from mem */
#define KN0X_ESR_SNGHI (1<<23) /* single/double bit error */
#define KN0X_ESR_SYNHI (0x7f<<16) /* syndrome from ECC logic */
#define KN0X_ESR_VLDLO (1<<15) /* error data valid lo word */
#define KN0X_ESR_CHKLO (0x7f<<8) /* check bits read from mem */
#define KN0X_ESR_SNGLO (1<<7) /* single/double bit error */
#define KN0X_ESR_SYNLO (0x7f<<0) /* syndrome from ECC logic */
#ifndef __ASSEMBLER__
#include <linux/interrupt.h>
struct pt_regs;
extern void dec_ecc_be_init(void);
extern int dec_ecc_be_handler(struct pt_regs *regs, int is_fixup);
extern irqreturn_t dec_ecc_be_interrupt(int irq, void *dev_id);
#endif
#endif /* __ASM_MIPS_DEC_ECC_H */
Annotation
- Immediate include surface: `linux/interrupt.h`.
- Detected declarations: `struct pt_regs`.
- Atlas domain: Architecture Layer / arch/mips.
- Implementation status: source implementation candidate.
- IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.
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.