arch/powerpc/platforms/ps3/device-init.c

File Facts

System

Linux kernel

Corpus path

arch/powerpc/platforms/ps3/device-init.c

Extension

.c

Size

22891 bytes

Lines

979

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/delay.h
• linux/freezer.h
• linux/kernel.h
• linux/kthread.h
• linux/init.h
• linux/slab.h
• linux/reboot.h
• linux/rcuwait.h
• linux/string_choices.h
• asm/firmware.h
• asm/lv1call.h
• asm/ps3stor.h
• platform.h

Detected Declarations

• struct layout
• struct layout
• struct layout
• struct layout
• struct layout
• struct layout
• struct ps3_notification_device
• struct ps3_notify_cmd
• struct ps3_notify_event
• enum ps3_notify_type
• function Copyright
• function ps3_setup_gelic_device
• function ps3_setup_uhc_device
• function ps3_setup_ehci_device
• function ps3_setup_ohci_device
• function ps3_setup_vuart_device
• function ps3_setup_storage_dev
• function ps3_register_vuart_devices
• function ps3_register_sound_devices
• function ps3_register_graphics_devices
• function ps3_register_ramdisk_device
• function ps3_setup_dynamic_device
• function ps3_setup_static_device
• function ps3_find_and_add_device
• function ps3_notification_interrupt
• function ps3_notification_read_write
• function ps3_probe_thread
• function ps3_stop_probe_thread
• function ps3_start_probe_thread
• function device_initcall
• module init ps3_register_devices

Annotated Snippet

* A device_initcall() routine.
 */

static int __init ps3_register_devices(void)
{
	if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
		return -ENODEV;

	pr_debug(" -> %s:%d\n", __func__, __LINE__);

	/* ps3_repository_dump_bus_info(); */

	ps3_start_probe_thread(PS3_BUS_TYPE_STORAGE);

	ps3_register_vuart_devices();

	ps3_register_graphics_devices();

	ps3_repository_find_devices(PS3_BUS_TYPE_SB, ps3_setup_static_device);

	ps3_register_sound_devices();

	ps3_register_lpm_devices();

	ps3_register_ramdisk_device();

	pr_debug(" <- %s:%d\n", __func__, __LINE__);
	return 0;
}

device_initcall(ps3_register_devices);

Annotation

• Immediate include surface: `linux/delay.h`, `linux/freezer.h`, `linux/kernel.h`, `linux/kthread.h`, `linux/init.h`, `linux/slab.h`, `linux/reboot.h`, `linux/rcuwait.h`.
• Detected declarations: `struct layout`, `struct layout`, `struct layout`, `struct layout`, `struct layout`, `struct layout`, `struct ps3_notification_device`, `struct ps3_notify_cmd`, `struct ps3_notify_event`, `enum ps3_notify_type`.
• 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.
• 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.