arch/xtensa/include/asm/mxregs.h
Source file repositories/reference/linux-study-clean/arch/xtensa/include/asm/mxregs.h
File Facts
- System
- Linux kernel
- Corpus path
arch/xtensa/include/asm/mxregs.h- Extension
.h- Size
- 1330 bytes
- Lines
- 47
- Domain
- Architecture Layer
- Bucket
- arch/xtensa
- 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 _XTENSA_MXREGS_H
#define _XTENSA_MXREGS_H
/*
* RER/WER at, as Read/write external register
* at: value
* as: address
*
* Address Value
* 00nn 0...0p..p Interrupt Routing, route IRQ n to processor p
* 01pp 0...0d..d 16 bits (d) 'ored' as single IPI to processor p
* 0180 0...0m..m Clear enable specified by mask (m)
* 0184 0...0m..m Set enable specified by mask (m)
* 0190 0...0x..x 8-bit IPI partition register
* VVVVVVVVPPPPUUUUUUUUUUUUUUUUU
* V (10-bit) Release/Version
* P ( 4-bit) Number of cores - 1
* U (18-bit) ID
* 01a0 i.......i 32-bit ConfigID
* 0200 0...0m..m RunStall core 'n'
* 0220 c Cache coherency enabled
*/
#define MIROUT(irq) (0x000 + (irq))
#define MIPICAUSE(cpu) (0x100 + (cpu))
#define MIPISET(cause) (0x140 + (cause))
#define MIENG 0x180
#define MIENGSET 0x184
#define MIASG 0x188 /* Read Global Assert Register */
#define MIASGSET 0x18c /* Set Global Addert Regiter */
#define MIPIPART 0x190
#define SYSCFGID 0x1a0
#define MPSCORE 0x200
#define CCON 0x220
#endif /* _XTENSA_MXREGS_H */
Annotation
- Atlas domain: Architecture Layer / arch/xtensa.
- 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.