drivers/block/ps3vram.c

File Facts

System

Linux kernel

Corpus path

drivers/block/ps3vram.c

Extension

.c

Size

22060 bytes

Lines

852

Domain

Driver Families

Bucket

drivers/block

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.
• 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/blkdev.h
• linux/delay.h
• linux/module.h
• linux/proc_fs.h
• linux/seq_file.h
• linux/slab.h
• asm/cell-regs.h
• asm/firmware.h
• asm/lv1call.h
• asm/ps3.h
• asm/ps3gpu.h

Detected Declarations

• struct ps3vram_tag
• struct ps3vram_cache
• struct ps3vram_priv
• function ps3vram_notifier_reset
• function ps3vram_notifier_wait
• function ps3vram_init_ring
• function ps3vram_wait_ring
• function ps3vram_out_ring
• function ps3vram_begin_ring
• function ps3vram_rewind_ring
• function ps3vram_fire_ring
• function ps3vram_bind
• function ps3vram_upload
• function ps3vram_download
• function ps3vram_cache_evict
• function ps3vram_cache_load
• function ps3vram_cache_flush
• function ps3vram_cache_match
• function ps3vram_cache_init
• function ps3vram_cache_cleanup
• function ps3vram_read
• function ps3vram_write
• function ps3vram_proc_show
• function ps3vram_proc_init
• function bio_for_each_segment
• function ps3vram_submit_bio
• function ps3vram_probe
• function ps3vram_remove
• function ps3vram_init
• function ps3vram_exit
• module init ps3vram_init

Annotated Snippet

module_init(ps3vram_init);
module_exit(ps3vram_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("PS3 Video RAM Storage Driver");
MODULE_AUTHOR("Sony Corporation");
MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_RAMDISK);

Annotation

• Immediate include surface: `linux/blkdev.h`, `linux/delay.h`, `linux/module.h`, `linux/proc_fs.h`, `linux/seq_file.h`, `linux/slab.h`, `asm/cell-regs.h`, `asm/firmware.h`.
• Detected declarations: `struct ps3vram_tag`, `struct ps3vram_cache`, `struct ps3vram_priv`, `function ps3vram_notifier_reset`, `function ps3vram_notifier_wait`, `function ps3vram_init_ring`, `function ps3vram_wait_ring`, `function ps3vram_out_ring`, `function ps3vram_begin_ring`, `function ps3vram_rewind_ring`.
• Atlas domain: Driver Families / drivers/block.
• 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.