drivers/video/fbdev/ps3fb.c

File Facts

System

Linux kernel

Corpus path

drivers/video/fbdev/ps3fb.c

Extension

.c

Size

33491 bytes

Lines

1302

Domain

Driver Families

Bucket

drivers/video

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Touches user memory; correctness depends on fault-safe copying and privilege boundary handling.
• 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/kernel.h
• linux/errno.h
• linux/string.h
• linux/mm.h
• linux/interrupt.h
• linux/console.h
• linux/ioctl.h
• linux/kthread.h
• linux/freezer.h
• linux/uaccess.h
• linux/fb.h
• linux/init.h
• asm/cell-regs.h
• asm/lv1call.h
• asm/ps3av.h
• asm/ps3fb.h
• asm/ps3.h
• asm/ps3gpu.h

Detected Declarations

• struct display_head
• struct gpu_irq
• struct gpu_driver_info
• struct ps3fb_priv
• struct ps3fb_par
• function ps3fb_cmp_mode
• function ps3fb_find_mode
• function ps3fb_sync_image
• function ps3fb_sync
• function ps3fb_open
• function ps3fb_release
• function ps3fb_check_var
• function ps3fb_set_par
• function ps3fb_setcolreg
• function ps3fb_pan_display
• function ps3fb_mmap
• function ps3fb_blank
• function ps3fb_get_vblank
• function ps3fb_wait_for_vsync
• function ps3fb_ioctl
• function ps3fbd
• function ps3fb_vsync_interrupt
• function ps3fb_probe
• function ps3fb_shutdown
• function ps3fb_setup
• function ps3fb_init
• function ps3fb_exit
• module init ps3fb_init

Annotated Snippet

module_init(ps3fb_init);
module_exit(ps3fb_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
MODULE_AUTHOR("Sony Computer Entertainment Inc.");
MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);

Annotation

• Immediate include surface: `linux/module.h`, `linux/kernel.h`, `linux/errno.h`, `linux/string.h`, `linux/mm.h`, `linux/interrupt.h`, `linux/console.h`, `linux/ioctl.h`.
• Detected declarations: `struct display_head`, `struct gpu_irq`, `struct gpu_driver_info`, `struct ps3fb_priv`, `struct ps3fb_par`, `function ps3fb_cmp_mode`, `function ps3fb_find_mode`, `function ps3fb_sync_image`, `function ps3fb_sync`, `function ps3fb_open`.
• Atlas domain: Driver Families / drivers/video.
• Implementation status: integration implementation candidate.
• This snippet crosses the user/kernel memory boundary; validate fault handling and access checks before translating the pattern.
• 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.