arch/powerpc/sysdev/ipic.h
Source file repositories/reference/linux-study-clean/arch/powerpc/sysdev/ipic.h
File Facts
- System
- Linux kernel
- Corpus path
arch/powerpc/sysdev/ipic.h- Extension
.h- Size
- 1369 bytes
- Lines
- 57
- 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
asm/ipic.h
Detected Declarations
struct ipicstruct ipic_info
Annotated Snippet
struct ipic {
volatile u32 __iomem *regs;
/* The remapper for this IPIC */
struct irq_domain *irqhost;
};
struct ipic_info {
u8 ack; /* pending register offset from base if the irq
supports ack operation */
u8 mask; /* mask register offset from base */
u8 prio; /* priority register offset from base */
u8 force; /* force register offset from base */
u8 bit; /* register bit position (as per doc)
bit mask = 1 << (31 - bit) */
u8 prio_mask; /* priority mask value */
};
#endif /* __IPIC_H__ */
Annotation
- Immediate include surface: `asm/ipic.h`.
- Detected declarations: `struct ipic`, `struct ipic_info`.
- 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.