arch/powerpc/platforms/powermac/pmac.h

File Facts

System

Linux kernel

Corpus path

arch/powerpc/platforms/powermac/pmac.h

Extension

.h

Size

1242 bytes

Lines

48

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/pci.h
• linux/irq.h
• asm/pmac_feature.h

Detected Declarations

• struct rtc_time

Annotated Snippet

#ifndef __PMAC_H__
#define __PMAC_H__

#include <linux/pci.h>
#include <linux/irq.h>

#include <asm/pmac_feature.h>

/*
 * Declaration for the various functions exported by the
 * pmac_* files. Mostly for use by pmac_setup
 */

struct rtc_time;

extern int pmac_newworld;

void g5_phy_disable_cpu1(void);

extern long pmac_time_init(void);
extern time64_t pmac_get_boot_time(void);
extern void pmac_get_rtc_time(struct rtc_time *);
extern int pmac_set_rtc_time(struct rtc_time *);
extern void pmac_read_rtc_time(void);
extern void pmac_calibrate_decr(void);
extern void pmac_pci_irq_fixup(struct pci_dev *);
extern void pmac_pci_init(void);

extern void pmac_nvram_update(void);
extern unsigned char pmac_nvram_read_byte(int addr);
extern void pmac_nvram_write_byte(int addr, unsigned char val);
extern void pmac_pcibios_after_init(void);

extern void pmac_setup_pci_dma(void);
extern void pmac_check_ht_link(void);

extern void pmac_setup_smp(void);
extern int psurge_secondary_virq;
extern void low_cpu_offline_self(void) __attribute__((noreturn));

extern int pmac_nvram_init(void);
extern void pmac_pic_init(void);

extern struct pci_controller_ops pmac_pci_controller_ops;

#endif /* __PMAC_H__ */

Annotation

• Immediate include surface: `linux/pci.h`, `linux/irq.h`, `asm/pmac_feature.h`.
• Detected declarations: `struct rtc_time`.
• 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.