arch/powerpc/sysdev/ipic.c
Source file repositories/reference/linux-study-clean/arch/powerpc/sysdev/ipic.c
File Facts
- System
- Linux kernel
- Corpus path
arch/powerpc/sysdev/ipic.c- Extension
.c- Size
- 18942 bytes
- Lines
- 894
- Domain
- Architecture Layer
- Bucket
- arch/powerpc
- Inferred role
- Architecture Layer: exported/initcall integration point
- Status
- integration 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.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Allocates kernel memory; connect allocation flags and lifetime to context constraints.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/kernel.hlinux/init.hlinux/errno.hlinux/reboot.hlinux/slab.hlinux/stddef.hlinux/sched.hlinux/signal.hlinux/syscore_ops.hlinux/device.hlinux/spinlock.hlinux/fsl_devices.hlinux/irqdomain.hlinux/of_address.hasm/irq.hasm/io.hasm/ipic.hipic.h
Detected Declarations
function ipic_readfunction ipic_writefunction ipic_from_irqfunction ipic_unmask_irqfunction ipic_mask_irqfunction ipic_ack_irqfunction ipic_mask_irq_and_ackfunction ipic_set_irq_typefunction ipic_host_matchfunction ipic_host_mapfunction ipic_initfunction ipic_set_default_priorityfunction ipic_get_mcp_statusfunction ipic_clear_mcp_statusfunction ipic_get_irqfunction ipic_suspendfunction ipic_resumefunction init_ipic_syscoremodule init init_ipic_syscore
Annotated Snippet
subsys_initcall(init_ipic_syscore);Annotation
- Immediate include surface: `linux/kernel.h`, `linux/init.h`, `linux/errno.h`, `linux/reboot.h`, `linux/slab.h`, `linux/stddef.h`, `linux/sched.h`, `linux/signal.h`.
- Detected declarations: `function ipic_read`, `function ipic_write`, `function ipic_from_irq`, `function ipic_unmask_irq`, `function ipic_mask_irq`, `function ipic_ack_irq`, `function ipic_mask_irq_and_ack`, `function ipic_set_irq_type`, `function ipic_host_match`, `function ipic_host_map`.
- Atlas domain: Architecture Layer / arch/powerpc.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
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.